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source: trunk/NewView/MainForm.pas@ 65

Last change on this file since 65 was 65, checked in by RBRi, 19 years ago
more fixes for the link handling
Property svn:eol-style set to `native`
File size: 182.4 KB

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1	Unit MainForm;
2
3	// NewView - a new OS/2 Help Viewer
4	// Copyright 2003 Aaron Lawrence (aaronl at consultant dot com)
5	// This software is released under the Gnu Public License - see readme.txt
6
7	Interface
8
9	Uses
10	// system is a good unit to be able to open ;)
11	// the above line is here so you can use right-mouse open file on "system"
12	OS2Def,
13	SysUtils,
14	Classes,
15	Forms,
16	Graphics,
17	Messages,
18	Buttons,
19	ComCtrls,
20	StdCtrls,
21	ExtCtrls,
22	TabCtrls,
23	Dialogs,
24
25	// library
26	ACLString,
27	SharedMemoryUnit,
28	ACLLanguageUnit,
29	GenericThread,
30	CmdLineParameterUnit,
31
32	// custom components
33	SplitBar,
34	Outline2,
35	RichTextView,
36	Coolbar2,
37	CustomListBox,
38
39	// local
40	HelpFile,
41	HelpTopic,
42	HelpWindowUnit,
43	HelpWindowDimensions,
44	NavigatePointUnit,
45	MiscUnit,
46	HelpManagerUnit,
47	TextSearchQuery,
48	IPFFileFormatUnit,
49	Tabset2Unit;
50
51	const
52	// Custom window messages for this form
53	// NOTE! Sibyl uses WM_USER+1 and +2!
54	WM_OPENED = WM_USER + 10;
55	WM_FOLLOWLINK = WM_USER + 11;
56	WM_FOLLOWEXTERNALLINK = WM_USER + 12;
57
58	MAIN_WINDOW_CLASS_NAME = 'NewViewMainForm';
59
60	Type
61
62	TMainForm = Class (TForm)
63	VSplitBar: TSplitBar;
64	Notebook: TNoteBook;
65	IndexSearchEdit: TEdit;
66	SearchTextEdit: TEdit;
67	SearchResultsListBox: TListBox;
68	NotesListBox: TListBox;
69	CoolBar: TCoolBar2;
70	MenuItem21: TMenuItem;
71	SaveAsIPFMI: TMenuItem;
72	MenuItem20: TMenuItem;
73	DebugFindBinaryMI: TMenuItem;
74	TopicByNameMI: TMenuItem;
75	DebugTopicByResourceIDMI: TMenuItem;
76	ToolsDebugSep: TMenuItem;
77	DebugSaveLanguageFileMI: TMenuItem;
78	DebugLoadLanguageMI: TMenuItem;
79	TabSet: TTabSet2;
80	NavigateNextMI: TMenuItem;
81	ShowLeftPanelMI: TMenuItem;
82	MenuItem18: TMenuItem;
83	AddNoteButton: TButton;
84	EditNoteButton: TButton;
85	DeleteNoteButton: TButton;
86	GotoNoteButton: TButton;
87	MenuItem23: TMenuItem;
88	MenuItem24: TMenuItem;
89	MenuItem25: TMenuItem;
90	DebugHelpManagerVersionMI: TMenuItem;
91	MenuItem19: TMenuItem;
92	ViewHighlightSearchWordsMI: TMenuItem;
93	MenuItem17: TMenuItem;
94	MenuItem16: TMenuItem;
95	MenuItem15: TMenuItem;
96	FileNewWindowMI: TMenuItem;
97	OpenSpecialMI: TMenuItem;
98	MenuItem14: TMenuItem;
99	SearchPMI: TMenuItem;
100	ViewSourceMI: TMenuItem;
101	FileCloseMI: TMenuItem;
102	MenuItem10: TMenuItem;
103	MenuItem12: TMenuItem;
104	MenuItem13: TMenuItem;
105	StatusPanel: TPanel;
106	ProgressPanel: TPanel;
107	ProgressBar: TProgressBar;
108	DebugShowWordSeparatorsMI: TMenuItem;
109	DebugStressTestMI: TMenuItem;
110	TopicPropertiesPMI: TMenuItem;
111	MenuItem3: TMenuItem;
112	MenuItem2: TMenuItem;
113	MenuItem8: TMenuItem;
114	ToolsOptionsMI: TMenuItem;
115	MenuItem9: TMenuItem;
116	ToolsDebugMenu: TMenuItem;
117	DebugShowParamsMI: TMenuItem;
118	DebugShowCodesMI: TMenuItem;
119	EditGlobalSearchMI: TMenuItem;
120	ViewExpandAllMI: TMenuItem;
121	EditBookmarksMI: TMenuItem;
122	AddBookmarkMI: TMenuItem;
123	ViewPopupMenu: TPopupMenu;
124	SelectAllPMI: TMenuItem;
125	CopyPMI: TMenuItem;
126	ContentsOutline: TOutline2;
127	IndexListBox: TCustomListBox;
128	ViewCollapseAllMI: TMenuItem;
129	MenuItem7: TMenuItem;
130	SystemOpenDialog: TSystemOpenDialog;
131	SearchButton: TButton;
132	MenuItem1: TMenuItem;
133	ViewIndexMI: TMenuItem;
134	ViewContentsMI: TMenuItem;
135	ViewSearchMI: TMenuItem;
136	ViewNotesMI: TMenuItem;
137	ViewRefreshMI: TMenuItem;
138	MenuItem11: TMenuItem;
139	DisplayPanel: TPanel;
140	ButtonImages: TImageList;
141	BookmarksMenu: TMenuItem;
142	MainMenu: TMainMenu;
143	FileMenu: TMenuItem;
144	OpenMI: TMenuItem;
145	FileSaveAsMI: TMenuItem;
146	PrintMI: TMenuItem;
147	FileInformationMI: TMenuItem;
148	MenuItem4: TMenuItem;
149	ExitMI: TMenuItem;
150	EditMenu: TMenuItem;
151	SelectAllMI: TMenuItem;
152	CopyMI: TMenuItem;
153	MenuItem5: TMenuItem;
154	FindMI: TMenuItem;
155	FindNextMI: TMenuItem;
156	NavigateMenu: TMenuItem;
157	NavigateBackMI: TMenuItem;
158	NavigateForwardMI: TMenuItem;
159	MenuItem6: TMenuItem;
160	NavigatePreviousMI: TMenuItem;
161	ToolsMenu: TMenuItem;
162	GlobalSearchMI: TMenuItem;
163	HelpMenu: TMenuItem;
164	HelpMI: TMenuItem;
165	HelpProductInformationMI: TMenuItem;
166	AddNoteMI: TMenuItem;
167
168	Procedure SaveAsIPFMIOnClick (Sender: TObject);
169	Procedure DebugFindBinaryMIOnClick (Sender: TObject);
170	Procedure TopicByNameMIOnClick (Sender: TObject);
171	Procedure CopyLinkLocationPMIOnClick (Sender: TObject);
172	Procedure HelpKeysMIOnClick (Sender: TObject);
173	Procedure MainFormOnCommand (Sender: TObject; Var Command: TCommand);
174	Procedure MainFormOnScan (Sender: TObject; Var KeyCode: TKeyCode);
175	Procedure ShowLeftPanelMIOnClick (Sender: TObject);
176	Procedure CoolBarOnFontChange (Sender: TObject);
177	Procedure NotebookOnFontChange (Sender: TObject);
178	Procedure TabSetOnFontChange (Sender: TObject);
179	Procedure IndexListBoxOnFontChange (Sender: TObject);
180	Procedure NotesListBoxOnFontChange (Sender: TObject);
181	Procedure DisplayPanelOnFontChange (Sender: TObject);
182	Procedure ContentsOutlineOnFontChange (Sender: TObject);
183	Procedure SearchResultsListBoxOnFontChange (Sender: TObject);
184	Procedure DisplayPanelOnDragOver (Sender: TObject; Source: TObject;
185	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
186	Procedure NotesListBoxOnDragOver (Sender: TObject; Source: TObject;
187	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
188	Procedure DisplayPanelOnDragDrop (Sender: TObject; Source: TObject;
189	X: LongInt; Y: LongInt);
190	Procedure NotesListBoxOnDragDrop (Sender: TObject; Source: TObject;
191	X: LongInt; Y: LongInt);
192	Procedure SearchResultsListBoxOnDragDrop (Sender: TObject; Source: TObject;
193	X: LongInt; Y: LongInt);
194	Procedure SearchResultsListBoxOnDragOver (Sender: TObject; Source: TObject;
195	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
196	Procedure IndexListBoxOnDragDrop (Sender: TObject; Source: TObject;
197	X: LongInt; Y: LongInt);
198	Procedure IndexListBoxOnDragOver (Sender: TObject; Source: TObject;
199	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
200	Procedure ContentsOutlineOnDragOver (Sender: TObject; Source: TObject;
201	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
202	Procedure ContentsOutlineOnDragDrop (Sender: TObject; Source: TObject;
203	X: LongInt; Y: LongInt);
204	Procedure MainFormOnDragOver (Sender: TObject; Source: TObject; X: LongInt;
205	Y: LongInt; State: TDragState; Var Accept: Boolean);
206	Procedure MainFormOnDragDrop (Sender: TObject; Source: TObject; X: LongInt;
207	Y: LongInt);
208	Procedure ContentsOutlineOnItemClick (Node: TNode);
209	Procedure DebugLoadLanguageMIOnClick (Sender: TObject);
210	Procedure DebugSaveLanguageFileMIOnClick (Sender: TObject);
211	Procedure SearchResultsListBoxOnClick (Sender: TObject);
212	Procedure VSplitBarOnDblClick (Sender: TObject);
213	Procedure DebugHelpManagerVersionMIOnClick (Sender: TObject);
214	Procedure DebugTopicByResourceIDMIOnClick (Sender: TObject);
215	Procedure ViewHighlightSearchWordsMIOnClick (Sender: TObject);
216	Procedure FileNewWindowMIOnClick (Sender: TObject);
217	Procedure OpenSpecialMIOnClick (Sender: TObject);
218	Procedure NotesListBoxOnScan (Sender: TObject; Var KeyCode: TKeyCode);
219	Procedure ViewPopupMenuOnPopup (Sender: TObject);
220	Procedure SearchPMIOnClick (Sender: TObject);
221	Procedure ViewSourceMIOnClick (Sender: TObject);
222	Procedure PrintMIOnClick (Sender: TObject);
223	Procedure DebugShowWordSeparatorsMIOnClick (Sender: TObject);
224	Procedure DebugStressTestMIOnClick (Sender: TObject);
225	Procedure TopicPropertiesPMIOnClick (Sender: TObject);
226	Procedure NavigateForwardMIOnClick (Sender: TObject);
227	Procedure IndexListBoxOnScan (Sender: TObject; Var KeyCode: TKeyCode);
228	Procedure SearchResultsListBoxOnScan (Sender: TObject;
229	Var KeyCode: TKeyCode);
230	Procedure ContentsOutlineOnScan (Sender: TObject; Var KeyCode: TKeyCode);
231	Procedure ToolsOptionsMIOnClick (Sender: TObject);
232	Procedure EditGlobalSearchMIOnClick (Sender: TObject);
233	Procedure DebugShowParamsMIOnClick (Sender: TObject);
234	Procedure ViewExpandAllMIOnClick (Sender: TObject);
235	Procedure EditBookmarksMIOnClick (Sender: TObject);
236	Procedure CopyPMIOnClick (Sender: TObject);
237	Procedure SelectAllPMIOnClick (Sender: TObject);
238	Procedure AddNoteButtonOnClick (Sender: TObject);
239	Procedure SearchTextEditOnChange (Sender: TObject);
240	Procedure IndexListBoxOnClick (Sender: TObject);
241	Procedure ViewCollapseAllMIOnClick (Sender: TObject);
242	Procedure NotesListBoxOnDblClick (Sender: TObject);
243	Procedure HelpMIOnClick (Sender: TObject);
244	Procedure NotebookOnPageChanged (Sender: TObject);
245	Procedure ViewRefreshMIOnClick (Sender: TObject);
246	Procedure ViewNotesMIOnClick (Sender: TObject);
247	Procedure ViewSearchMIOnClick (Sender: TObject);
248	Procedure ViewIndexMIOnClick (Sender: TObject);
249	Procedure ViewContentsMIOnClick (Sender: TObject);
250	Procedure MainFormOnCloseQuery (Sender: TObject; Var CanClose: Boolean);
251	Procedure GlobalSearchMIOnClick (Sender: TObject);
252	Procedure GotoNoteButtonOnClick (Sender: TObject);
253	Procedure EditNoteButtonOnClick (Sender: TObject);
254	Procedure NotesListBoxOnItemFocus (Sender: TObject; Index: LongInt);
255	Procedure DeleteNoteButtonOnClick (Sender: TObject);
256	Procedure AddBookmarkMIOnClick (Sender: TObject);
257	Procedure AddNoteMIOnClick (Sender: TObject);
258	Procedure FileCloseMIOnClick (Sender: TObject);
259	Procedure CoolBarOnSectionResize (HeaderControl: THeaderControl;
260	section: THeaderSection);
261	Procedure CoolBarOnSectionClick (HeaderControl: THeaderControl;
262	section: THeaderSection);
263	Procedure MainFormOnDestroy (Sender: TObject);
264	Procedure MainFormOnSetupShow (Sender: TObject);
265	Procedure MainFormOnCreate (Sender: TObject);
266	Procedure MainFormOnShow (Sender: TObject);
267	Procedure FindNextMIOnClick (Sender: TObject);
268	Procedure FindMIOnClick (Sender: TObject);
269	Procedure IndexSearchEditOnScan (Sender: TObject; Var KeyCode: TKeyCode);
270	Procedure IndexSearchEditOnChange (Sender: TObject);
271	Procedure FileInformationMIOnClick (Sender: TObject);
272	Procedure SearchTextEditOnScan (Sender: TObject; Var KeyCode: TKeyCode);
273	Procedure SearchButtonOnClick (Sender: TObject);
274	Procedure FileSaveAsMIOnClick (Sender: TObject);
275	Procedure OptionsMIOnClick (Sender: TObject);
276	Procedure TabSetOnChange (Sender: TObject; NewTab: LongInt;
277	Var AllowChange: Boolean);
278	Procedure NotebookOnSetupShow (Sender: TObject);
279	Procedure NavigateBackMIOnClick (Sender: TObject);
280	Procedure NavigatePreviousMIOnClick (Sender: TObject);
281	Procedure NavigateNextMIOnClick (Sender: TObject);
282	Procedure CopyMIOnClick (Sender: TObject);
283	Procedure SelectAllMIOnClick (Sender: TObject);
284	Procedure DebugShowCodesMIOnClick (Sender: TObject);
285	Procedure HelpProductInformationMIOnClick (Sender: TObject);
286	Procedure OnOverLink ( Sender: TRichTextView; LinkString: String);
287	Procedure OnNotOverLink ( Sender: TRichTextView; LinkString: String);
288	Procedure OnClickLink ( Sender: TRichTextView; LinkString: String);
289	Procedure BackButtonOnClick (Sender: TObject);
290	Procedure RTViewOnSetupShow (Sender: TObject);
291	Procedure OpenMIOnClick (Sender: TObject);
292	Procedure ExitMIOnClick (Sender: TObject);
293
294	Procedure MainFormOnResize (Sender: TObject);
295	Procedure VSplitBarOnChange (NewSplit: LongInt);
296	Protected
297	// Custom window messages ----------------------------------
298
299	// Handle our own WM_OPENED message
300	Procedure WMOpened( Var Msg: TMessage ); Message WM_OPENED;
301	Procedure WMFollowLink( Var Msg: TMessage ); Message WM_FOLLOWLINK;
302	Procedure WMFollowExternalLink( Var Msg: TMessage ); Message WM_FOLLOWEXTERNALLINK;
303
304	// Messages from new help manager OR other instances
305	Procedure NHMDisplayIndex( Var Msg: TMessage ); Message NHM_HELP_INDEX;
306	Procedure NHMDisplayContents( Var Msg: TMessage ); Message NHM_HELP_CONTENTS;
307	Procedure NHMTopicByResourceID( Var Msg: TMessage ); Message NHM_TOPIC_BY_RESOURCE_ID;
308	Procedure NHMTopicByPanelName( Var Msg: TMessage ); Message NHM_TOPIC_BY_PANEL_NAME;
309
310	Procedure NHMTest( Var Msg: TMessage ); Message NHM_TEST;
311
312	Procedure NHMSearch( Var Msg: TMessage ); Message NHM_SEARCH;
313	Procedure NHMGlobalSearch( Var Msg: TMessage ); Message NHM_GLOBAL_SEARCH;
314	Procedure NHMShowUsage( Var Msg: TMessage ); Message NHM_SHOW_USAGE;
315
316	Procedure NHMSetFiles( Var Msg: TMessage ); Message NHM_SET_FILES;
317	Procedure NHMSetTitle( Var Msg: TMessage ); Message NHM_SET_TITLE;
318
319	Protected
320	// GUI events set by code ----------------------------------
321
322	Procedure OnHint( Sender: TObject );
323	Procedure OnWindowClose( Window: THelpWindow );
324	Procedure OnWindowAboutToClose( Window: THelpWindow;
325	var CanClose: boolean );
326	Procedure OnNavigateToMenuItemClick( Sender: TObject );
327	Procedure OnDragOverWindow( Sender: TObject;
328	Source: TObject;
329	X: LongInt;
330	Y: LongInt;
331	State: TDragState;
332	Var Accept: Boolean );
333	Procedure OnDragDropToWindow( Sender: TObject;
334	Source: TObject;
335	X: LongInt;
336	Y: LongInt );
337	Procedure OnWindowFontChange( Sender: TObject );
338	Procedure OnWindowTab( Sender: TObject );
339	Procedure OnWindowBackTab( Sender: TObject );
340
341	Procedure OnException( Sender: TObject;
342	E: Exception );
343	Procedure OnHelp( context: THelpContext;
344	var Result: Boolean );
345
346
347	FShowLeftPanel: boolean;
348
349	Function GetShowLeftPanel: boolean;
350	Procedure SetShowLeftPanel( Value: boolean );
351	Property ShowLeftPanel: boolean read GetShowLeftPanel write SetShowLeftPanel;
352
353	Procedure ShowTab( TabIndex: longint );
354
355	procedure GetClassData(var ClassData: TClassData); override;
356	Public
357
358	// Open the file or list of files in FileNames
359	// Set the window title if given, otherwise get it from first file
360	Function OpenFiles( const FileNames: TStrings;
361	const WindowTitle: string;
362	const DisplayFirstTopic: boolean ): boolean;
363
364	// Open a single file
365	Function OpenFile( const FileName: string;
366	const WindowTitle: string;
367	const DisplayFirstTopic: boolean ): boolean;
368
369	Function OpenAdditionalFiles( const FileNames: TStrings;
370	const DisplayFirstTopic: boolean ): boolean;
371
372	Function OpenAdditionalFile( const FileName: string;
373	const DisplayFirstTopic: boolean ): boolean;
374
375	// open from original helpmgr style file1+file2+file3. ..
376	Function OpenFilesFromTextList( const TextList: string;
377	const DisplayFirstTopic: boolean ): boolean;
378
379	Procedure CloseFile;
380	Function OKToCloseFile: boolean;
381
382	Procedure AddCurrentToMRUFiles;
383
384	Function LoadFiles( const FileNames: TStrings;
385	HelpFiles: TList ): boolean;
386	Procedure DisplayFiles( NewFiles: TList;
387	Var FirstContentsNode: TNode );
388
389	Procedure OpenDroppedFile( Source: TObject );
390
391	Function OpenWindowsHelp( const Filename: string ): boolean;
392
393	function DisplayTopicByResourceID( ID: uint16 ): boolean;
394	function DisplayTopicByName( const TopicName: string ): boolean;
395	function DisplayTopicByGlobalName( const TopicName: string ): boolean;
396
397	Procedure DisplayIndex;
398	Procedure DisplayContents;
399	Procedure DisplaySearch;
400
401	Protected
402	// Startup functions ----------------------------------
403
404	Function pSharedStruct: TPNewHelpMgrSharedStruct;
405	Procedure PositionWindow;
406	Procedure RestoreWindow;
407
408	Procedure CheckEnvironmentVars;
409	Procedure ShowUsage;
410
411	// Loading functions ----------------------------------
412
413	// Most recently used files list
414	Procedure CreateMRUMenuItems;
415	Procedure OnMRUMenuItemClick( Sender: TObject );
416
417	Procedure OnHelpFileLoadProgress( n, outof: integer;
418	message: string );
419
420	// Returns nil if file is not open
421	Function FindOpenHelpFile( FileName: string ): THelpFile;
422
423	// Navigation -------------------------------------------------
424
425	Procedure SaveNavigatePoint;
426	Procedure SaveWindows( SourceList: TList;
427	DestList: TList;
428	Parent: TSavedHelpWindow );
429
430	Procedure UpdateCurrentNavigatePoint;
431	Procedure ClearPageHistory;
432
433	Procedure NavigateToPoint( NavPoint: TNavigatePoint );
434	Procedure NavigateToHistoryIndex( Index: longint );
435
436	Procedure DisplayWindows( WindowList: TList;
437	Parent: THelpWindow );
438	Procedure ShowWindows;
439	Procedure ShowWindowList( WindowList: TList );
440	Procedure CloseWindows;
441
442	Procedure FocusFirstHelpWindow;
443
444	Procedure NavigateBack;
445	Procedure NavigateForward;
446	Procedure NavigatePreviousInContents;
447	Procedure NavigateNextInContents;
448
449	Procedure CreateNavigateToMenuItems;
450
451	// GUI status updates ---------------------------------
452
453	Procedure EnableControls;
454	Procedure EnableSearchButton;
455	Procedure SetStatus( Text: String );
456	Procedure SetProgress( n, outof: integer;
457	message: string );
458	Procedure ResetProgress;
459	Procedure RefreshWindows( WindowList: TList );
460
461	// language stuff
462	// called by callback
463	Procedure OnLanguageEvent( Language: TLanguageFile;
464	const Apply: boolean );
465
466	function ShowCodes: boolean;
467	function ShowWordIndices: boolean;
468
469	// Loading views --------------------------------------
470
471	// Used in loading contents
472	Procedure AddChildNodes( HelpFile: THelpFile;
473	ParentNode: TNode;
474	Level: longint;
475	Var TopicIndex: longint );
476	Procedure LoadContents( Files: TList;
477	Var FirstNode: TNode );
478	Procedure LoadIndex;
479
480	// Note manipulations --------------------------------
481
482	procedure AddNote;
483	Procedure EditNote( NoteIndex: longint );
484	procedure DeleteNote( NoteIndex: longint );
485	Procedure SaveNotes;
486	Procedure SaveNotesForFile( HelpFile: THelpFile );
487	Procedure LoadNotes( HelpFile: THelpFile );
488	Procedure GotoCurrentNote;
489
490	// make sure that note insert positions are not in
491	// the middle of tags due to help file or newview updates.
492	Procedure CorrectNotesPositions( Topic: TTopic;
493	Text: pchar );
494
495	Procedure InsertNotesIntoTopicText( Topic: TTopic;
496	Text: TAString );
497	function FindOriginalNoteCharIndex( NoteCharIndex: longword;
498	Topic: TTopic ): longword;
499	function FindActualNoteCharIndex( NoteCharIndex: longword;
500	MaxNoteIndex: longword;
501	Topic: TTopic ): longword;
502	procedure RefreshNoteInsertInfo( NoteIndex: longword );
503	procedure ClearNotes;
504
505	Procedure EnableNotesControls;
506	Procedure UpdateNotesDisplay;
507
508	Procedure RefreshFontSubstitutions;
509
510	// GUI actions ------------------------------------------
511
512	procedure FileOpen;
513
514	Procedure PrintTopics;
515	function DoPrinting( Parameters: TObject ): TObject;
516	Procedure StopPrinting;
517
518	Procedure DoFind( FindOrigin: TFindOrigin );
519
520	// Bookmarks ------------------------------------------
521
522	Procedure NavigateToBookmark( Bookmark: TBookmark );
523	Procedure BuildBookmarksMenu;
524	Procedure UpdateBookmarksForm;
525	Procedure BookmarksMenuItemClick( Sender: TObject );
526	procedure AddBookmark;
527	procedure ClearBookmarks;
528	procedure SaveBookmarks;
529	procedure SaveBookmarksForFile( HelpFile: THelpFile );
530	procedure LoadBookmarks( HelpFile: THelpFile );
531	procedure OnBookmarksChanged( Sender: TObject );
532
533	// Global search -------------------------------------
534
535	procedure DoGlobalSearch( const SearchText: string );
536	// Called when viewing topics from global search
537	Procedure OnViewGlobalSearchTopic( FileName: string;
538	TopicIndex: longint );
539
540	// Options and appearance -----------------------------
541
542	procedure DoOptions;
543
544	procedure ApplySettings;
545
546	// changes normal or fixed font depending on shift state
547	Procedure SetTopicFont( NewFont: TFont );
548
549	Procedure SetApplicationFont( NewFont: TFont );
550
551	// Retrieve control colours (in case drag'n'drop used to change)
552	Procedure GetColors;
553	// Set the layout of the main form
554	Procedure SetLayout;
555	// Lay out the specified list of help windows
556	Procedure LayoutWindowList( WindowList: TList );
557	// Setup the rich text views in the specified windows (e.g for changing global settings)
558	Procedure SetupViews( WindowList: TList );
559
560	// Topic display -------------------------------------
561
562	// Major display topic function.
563	procedure DisplayTopic( Topic: TTopic );
564
565	Procedure DisplaySelectedIndexTopic;
566	Procedure DisplaySelectedSearchResultTopic;
567	Procedure DisplaySelectedContentsTopic;
568
569	Procedure DisplayTopicInWindow( Window: THelpWindow;
570	FollowAutoLinks: boolean;
571	KeepPosition: boolean );
572
573	function OpenWindow( Topic: TTopic;
574	Group: longint;
575	Parent: THelpWindow;
576	Rect: THelpWindowRect;
577	FollowAutoLinks: boolean ): THelpWindow;
578
579	Procedure RemoveHelpWindowFromParent( Window: THelpWindow );
580
581	Procedure FollowLink( Link: THelpLink;
582	SourceWindow: THelpWindow );
583
584	Function FindTopicByResourceID( ID: uint16 ): TTopic;
585	Function FindTopicByName( const Name: string ): TTopic;
586	Function FindTopicByGlobalName( const Name: string ): TTopic;
587
588	Function FindTopicForLink( Link: THelpLink ): TTopic;
589
590	Function FindWindowFromView( View: TRichTextView; WindowList: TList ): THelpWindow;
591	Function FindWindowFromGroup( Group: longint; WindowList: TList ): THelpWindow;
592	Function FindWindowFromTopic( Topic: TTopic; WindowList: TList ): THelpWindow;
593	Function GetActiveWindow: THelpWindow;
594
595	Procedure DoSearch;
596	Procedure SearchFor( const SearchText: string );
597	Procedure StartupTopicSearch( const SearchText: string );
598
599	// clear search match sequences
600	Procedure ClearAllWordSequences;
601
602	Procedure SetMainCaption;
603
604	// cancel help manager mode
605	Procedure ClearHelpManager;
606	Procedure PostHelpManagerMessage( MessageType: ULONG;
607	Param1: long;
608	Param2: long );
609
610	HelpManagerWindows: TList; // of HWND
611
612	function OwnHelpMode: boolean;
613	CurrentOpenFiles: TList; // current open help files.
614	MRUMenuItems: TList; // most recently used file list
615	NavigateToMenuItems: TList;
616	MainTitle: string;
617
618	// Current topic has the vague meaning that it was the last
619	// topic selected by the user... (?)
620	CurrentTopic: TTopic;
621
622	AllFilesWordSequences: TList; // of lists; one per open file; of possible word sequences
623
624	// use during decode...
625	TopicText: TAString;
626
627	Windows: TList; // top level help windows
628
629	PageHistory: TStringList; // history
630	CurrentHistoryIndex: longint; // where we are in history
631
632	Navigating: boolean; // true while going to a particular history point
633
634	DisplayedIndex: TStringList; // duplicate of index listbox,
635	// for fast case insensitive searching
636	InIndexSearch: boolean; // true while searching index
637	IndexLoaded: boolean;
638
639	ContentsLoaded: boolean;
640
641	StartingUp: boolean; // true while starting
642	SettingFont: boolean;
643	DisplayingTopicWindow: boolean;
644
645	FindText: string; // last text found (Ctrl-F)
646
647	Notes: TList; // Notes in current files.
648
649	Bookmarks: TList;
650	BookmarksMenuItems: TList;
651
652	// while loading... so owe can display progress
653	LoadingFilenameList: TStringList;
654	LoadingFileIndex: integer;
655
656	PrintThread: TGenericThreadManager;
657	procedure OnPrintProgress( n, outof: integer;
658	Message: string );
659	procedure OnPrintComplete( Dummy: TObject );
660	protected
661	// language stuff
662	FileOpenTitle: string;
663	LoadingFileMsg: string;
664	HelpFileError: string;
665	LoadingStatusDisplaying: string;
666	LoadingStatusNotesAndBookmarks: string;
667	LoadingStatusContents: string;
668	LoadingStatusIndex: string;
669	LoadingStatusDone: string;
670
671	AllFilesDesc: string;
672	HelpFilesDesc: string;
673	LanguageFilesDesc: string;
674
675	SaveLanguageTitle: string;
676	OpenLanguageTitle: string;
677	SaveLanguageError: string;
678
679	HelpManagerVersionTitle: string;
680
681	FindResourceIDTitle: string;
682	FindResourceIDPrompt: string;
683	InvalidResourceIDError: string;
684	ResourceIDNotFoundError: string;
685
686	OpenSpecialTitle: string;
687	OpenSpecialPrompt: string;
688
689	PrintTopicTitle: string;
690	NoPrinterError: string;
691	SelectWindowToPrintError: string;
692	PrintingError: string;
693	StoppingPrintMsg: string;
694	PrintStoppedMsg: string;
695	CheckStopPrintTitle: string;
696	CheckStopPrintMsg: string;
697
698	TopicInfoTitle: string;
699	TopicInfoTopicTitle: string;
700	TopicInfoIndex: string;
701	TopicInfoFile: string;
702	TopicInfoResourceIDs: string;
703	TopicInfoNoResourceIDs: string;
704
705	ParameterCountLabel: string;
706
707	NewViewHelpTitle: string;
708	AlreadyNewviewHelp: string;
709	NewViewHelpNotFound: string;
710
711	InvalidLinkErrorTitle: string;
712	InvalidLinkError: string;
713	InvalidResourceIDLinkErrorA: string;
714	InvalidResourceIDLinkErrorB: string;
715
716	OpenedTopicMsg: string;
717
718	AddNoteTitle: string;
719	AddNoteCursorError: string;
720	NoteWithinNoteError: string;
721	LoadNotesTitle: string;
722	LoadNotesError: string;
723	SaveNotesTitle: string;
724	SaveNotesError: string;
725
726	UntitledBookmarkName: string;
727	LoadBookmarksTitle: string;
728	LoadBookmarksError: string;
729	SaveBookmarksTitle: string;
730	SaveBookmarksError: string;
731
732	ApplicationErrorTitle: string;
733	ApplicationErrorA: string;
734	ApplicationErrorB: string;
735	ApplicationErrorC: string;
736
737	EnvironmentVarErrorTitle: string;
738	EnvironmentVarError: string;
739	EnvironmentVarUndefined: string;
740
741	FindTitle: string;
742	FindSelectWindowError: string;
743	FindPrompt: string;
744	TextNotFoundMsg: string;
745
746	FilesInfoTitle: string;
747	FilesInfoOverallTitle: string;
748	FilesInfoFilename: string;
749	FilesInfoFileTitle: string;
750	FilesInfoTopicCount: string;
751	FilesInfoIndexCount: string;
752	FilesInfoDictionaryCount: string;
753	FilesInfoFileSize: string;
754	FilesInfoTotalTopicCount: string;
755	FilesInfoTotalIndexCount: string;
756	FilesInfoTotalFileSize: string;
757
758	SearchTitle: string;
759	SearchSyntaxError: string;
760	SearchingMsg: string;
761	NoSearchMatchesMsg: string;
762	SearchFoundMsgA: string;
763	SearchFoundMsgB: string;
764
765	FileSaveTitle: string;
766	FileSaveSelectWindowError: string;
767	DefaultSaveTopicFilename: string;
768	ReplaceFilePromptA: string;
769	ReplaceFilePromptB: string;
770	UnableToSaveError: string;
771
772	UsageTitle: string;
773	UsageText1: string;
774	UsageText2: string;
775	UsageText3: string;
776	UsageText4: string;
777	UsageText5: string;
778	UsageText6: string;
779	UsageText7: string;
780	UsageText8: string;
781
782	GoBackHint: string;
783
784	SelectAllTitle: string;
785	SelectAllWindowError: string;
786
787	EditNoteMsg: string;
788	ExternalLinkMsg: string;
789	LinkMsg: string;
790	UnknownLinkMsg: string;
791	FootnoteMsg: string;
792
793	ExternalLinkTitle: string;
794	ExternalLinkError: string;
795
796	MRUMultipleFilesHint: string;
797
798	HelpProgramTitle: string;
799	WindowsHelpTitle: string;
800	WindowsHelpPrompt: string;
801
802	ErrorTitle: string;
803
804	FindTopicNameTitle: string;
805	FindTopicNamePrompt: string;
806	TopicNameNotFoundError: string;
807
808	SplitBarDblClickToShow: string;
809	SplitBarDblClickToHide: string;
810
811	End;
812
813	Var
814	MainForm: TMainForm;
815	CmdLineParameters : TCmdLineParameters;
816
817	Implementation
818
819	uses
820	BseDos,
821	BseErr,
822	PMWin,
823	PmShl,
824	Dos,
825	Printers,
826
827	// Library
828	ACLStringUtility,
829	AStringUtilityUnit,
830	ACLFileUtility,
831	ACLFileIOUtility,
832	ACLUtility,
833	ACLDialogs,
834	ACLString,
835	RunProgramUnit,
836	StringUtilsUnit,
837	DebugUnit,
838
839	// Components
840	RichTextPrintUnit,
841	RichTextStyleUnit,
842	RichTextDocumentUnit,
843	ControlsUtility,
844
845	// local: forms
846	InformationFormUnit,
847	OptionsForm,
848	ProductInformationFormUnit,
849	NoteForm,
850	GlobalSearchForm,
851	FileDialogForm,
852	BookmarksFormUnit,
853	PrintDialogUnit,
854
855	// local: others
856	SettingsUnit,
857	VersionUnit,
858	SearchUnit,
859	StartupUnit,
860	GlobalFilelistUnit,
861	WebBrowserUnit,
862	HelpBitmap;
863
864	{$R Images}
865
866	const
867	// Coolbar button indexes
868	ciOpen = 0;
869	ciBack = 1;
870	ciForward = 2;
871	ciPrint = 3;
872	ciAddNote = 4;
873	ciAddBookmark = 5;
874	ciPrevious = 6;
875	ciNext = 7;
876	ciGlobalSearch = 8;
877
878	// Page indexes.
879	piContents = 0;
880	piIndex = 1;
881	piSearch = 2;
882	piNotes = 3;
883
884	CrashLogFileName = 'NewView.log';
885
886	_MAX_PATH = 260;
887
888	var
889	hNewViewDLL: HMODULE;
890
891	StartMem: longword;
892	LastMem: longword;
893
894	g_ExternalLinkFilename: string;
895	g_ExternalLinkTopic: string;
896	g_ExternalLinkSourceFilename: string;
897	g_ExternalLinkKeepCurrent: boolean; // whether to keep current files open
898
899	//
900	// ----------------------------------------------------------------------------------------
901	// TMainForm implementation
902	// ----------------------------------------------------------------------------------------
903	//
904
905	Procedure TMainForm.SaveAsIPFMIOnClick (Sender: TObject);
906	var
907	FileName: string;
908	F: TextFile;
909	H: THelpFile;
910	i: longint;
911	T: TTopic;
912	ResourceIDs: TList;
913	ImageOffsets: TList;
914	ImageOffset: longint;
915	Image: THelpBitmap;
916	Begin
917	H := CurrentOpenFiles[ 0 ];
918
919	FileName := ChangeFileExt( ExtractFileName( H.Filename ), '.ipf' );
920	if not DoSaveFileDialog( FileSaveTitle,
921	'IPF' + '\|*.ipf',
922	Filename,
923	Settings.LastSaveDirectory,
924	Filename ) then
925	exit;
926	if FileExists( Filename ) then
927	if not DoConfirmDlg( FileSaveTitle,
928	ReplaceFilePromptA
929	+ Filename
930	+ ReplaceFilePromptB ) then
931	exit;
932
933	ImageOffsets := TList.Create;
934
935	AssignFile( F, FileName );
936	Rewrite( F );
937	WriteLn( F, ':userdoc.' );
938
939	// We can't tell if some levels of the contents were
940	// merged into the text of topics. So we just assume all are visible
941	WriteLn( F, ':docprof toc=123456.' );
942
943	ResourceIDs := TList.Create;
944
945	WriteLn( F, ':title.' + H.Title );
946
947	for i := 0 to H.TopicCount - 1 do
948	begin
949	T := H.Topics[ i ];
950
951	SetProgress( i div 2, H.TopicCount , 'Saving text...' );
952
953	WriteLn( F, '' );
954
955
956	if T.ContentsLevel = 0 then
957	begin
958	// perhaps it means footnote?
959	// Level := 1;
960	Write( F, ':fn id=fn' + IntToStr( i ) + '.' ); // use index as id
961
962	T.SaveToIPF( F, ImageOffsets );
963
964	WriteLn( F, '' );
965	WriteLn( F, ':efn.' );
966	end
967	else
968	begin
969	Write( F, ':h' + IntToStr( T.ContentsLevel ) );
970	Write( F, ' id=' + IntToStr( i ) ); // use index as id
971
972	H.FindResourceIDsForTopic( T, ResourceIDs );
973	if ResourceIDs.Count > 0 then
974	begin
975	Write( F, ' res=' + IntToStr( longint( ResourceIDs[ 0 ] ) ) );
976	end;
977
978	if not T.ShowInContents then
979	Write( F, ' hide' );
980
981	if T.ContentsGroupIndex > 0 then
982	Write( F, ' group=' + IntToStr( T.ContentsGroupIndex ) );
983
984	Write( F, '.' ); // end of header
985	WriteLn( F, T.Title );
986
987	T.SaveToIPF( F, ImageOffsets );
988	end;
989
990
991
992	end;
993
994	ResourceIDs.Destroy;
995
996	WriteLn( F, ':euserdoc.' );
997	System.Close( F );
998
999	// Now write images
1000
1001	for i := 0 to ImageOffsets.Count - 1 do
1002	begin
1003	ImageOffset := longint( ImageOffsets[ i ] );
1004
1005	SetProgress( i div 2 + ImageOffsets.Count div 2,
1006	ImageOffsets.Count ,
1007	'Saving images...' );
1008
1009	Image := H.GetImage( ImageOffset );
1010
1011	if Image <> nil then
1012	begin
1013	Image.SaveToFile( ExtractFilePath( Filename )
1014	+ 'img'
1015	+ IntToStr( i )
1016	+ '.bmp' );
1017	Image.Destroy;
1018	end;
1019
1020	end;
1021
1022	ResetProgress;
1023	SetStatus( 'Save complete' );
1024	ImageOffsets.Destroy;
1025	End;
1026
1027	Procedure TMainForm.DebugFindBinaryMIOnClick (Sender: TObject);
1028	Var
1029	DataStr: string;
1030	data: array[ 0.. 255 ] of byte;
1031	DataLen: longint;
1032	FileIndex: longint;
1033	HelpFile: THelpFile;
1034	i: longint;
1035	Topic: TTopic;
1036
1037	Begin
1038	if not DoInputQuery( 'Binary Find',
1039	'Enter data to find (decimal, separate with spaces)',
1040	DataStr ) then
1041	exit;
1042
1043	DataLen := 0;
1044	while Length( DataStr ) > 0 do
1045	begin
1046	Data[ DataLen ] := StrToInt( ExtractNextValue( DataStr, ' ' ) );
1047	inc( DataLen );
1048	end;
1049
1050	ShowTab( piSearch );
1051	SearchResultsListBox.Clear;
1052
1053	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
1054	begin
1055	HelpFile := CurrentOpenFiles[ FileIndex ];
1056	for i := 0 to HelpFile.TopicCount -1 do
1057	begin
1058	Topic := HelpFile.Topics[ i ];
1059	if Topic.SearchForData( Addr( Data ), DataLen ) then
1060	begin
1061	SearchResultsListBox.Items.AddObject( Topic.Title, Topic );
1062	end;
1063
1064	end;
1065
1066	end;
1067
1068	End;
1069
1070	Procedure TMainForm.TopicByNameMIOnClick (Sender: TObject);
1071	var
1072	TopicNameString: string;
1073	Begin
1074	if not DoInputQuery( FindTopicNameTitle,
1075	FindTopicNamePrompt,
1076	TopicNameString ) then
1077	exit;
1078
1079	if not DisplayTopicByName( TopicNameString ) then
1080	if not DisplayTopicByGlobalName( TopicNameString ) then
1081	DoErrorDlg( FindTopicNameTitle,
1082	TopicNameNotFoundError );
1083	End;
1084
1085	Function TMainForm.pSharedStruct: TPNewHelpMgrSharedStruct;
1086	begin
1087	Result := TPNewHelpMgrSharedStruct( SharedMemory.Data );
1088	end;
1089
1090	Procedure TMainForm.CopyLinkLocationPMIOnClick (Sender: TObject);
1091	Begin
1092
1093	End;
1094
1095	Procedure TMainForm.HelpKeysMIOnClick (Sender: TObject);
1096	Begin
1097	// Application.Help( 10 );
1098	End;
1099
1100	Procedure TMainForm.MainFormOnCommand (Sender: TObject; Var Command: TCommand);
1101	Begin
1102	case Command of
1103	kbF11:
1104	NavigatePreviousInContents;
1105
1106	kbF12:
1107	NavigateNextInContents;
1108
1109	kbF7,
1110	kbCtrlCLeft:
1111	NavigateBack;
1112
1113	kbF8:
1114	NavigateForward;
1115	end;
1116	End;
1117
1118	Procedure TMainForm.MainFormOnScan (Sender: TObject; Var KeyCode: TKeyCode);
1119	Begin
1120	End;
1121
1122	Procedure TMainForm.ShowLeftPanelMIOnClick (Sender: TObject);
1123	Begin
1124	ShowLeftPanel := not ShowLeftPanel;
1125	End;
1126
1127	Procedure TMainForm.CoolBarOnFontChange (Sender: TObject);
1128	Begin
1129	SetApplicationFont( Coolbar.Font );
1130	End;
1131
1132	Procedure TMainForm.NotebookOnFontChange (Sender: TObject);
1133	Begin
1134	SetApplicationFont( Notebook.Font );
1135	End;
1136
1137	Procedure TMainForm.TabSetOnFontChange (Sender: TObject);
1138	Begin
1139	SetApplicationFont( TabSet.Font );
1140	End;
1141
1142	Procedure TMainForm.IndexListBoxOnFontChange (Sender: TObject);
1143	Begin
1144	SetApplicationFont( IndexListBox.Font );
1145	End;
1146
1147	Procedure TMainForm.NotesListBoxOnFontChange (Sender: TObject);
1148	Begin
1149	SetApplicationFont( NotesListBox.Font );
1150	End;
1151
1152	Procedure TMainForm.DisplayPanelOnFontChange (Sender: TObject);
1153	Begin
1154	SetTopicFont( DisplayPanel.Font );
1155	End;
1156
1157	Procedure TMainForm.SetTopicFont( NewFont: TFont );
1158	var
1159	ShiftPressed: boolean;
1160	Begin
1161	if SettingFont or StartingUp then
1162	exit;
1163	LogEvent(LogSettings, 'SetTopicFont');
1164
1165	SettingFont := true;
1166
1167	ShiftPressed := ( WinGetKeyState( HWND_DESKTOP,
1168	VK_SHIFT ) and $8000 ) > 0;
1169	if ShiftPressed then
1170	Settings.FixedFont := NewFont
1171	else
1172	Settings.NormalFont := NewFont;
1173
1174	LogEvent(LogSettings, 'Saving settings');
1175
1176	SaveSettings;
1177	LogEvent(LogSettings, 'Applying settings');
1178	ApplySettings;
1179
1180	SettingFont := false;
1181	LogEvent(LogSettings, 'SetTopicFont done');
1182	End;
1183
1184	Procedure TMainForm.ContentsOutlineOnFontChange (Sender: TObject);
1185	Begin
1186	SetApplicationFont( ContentsOutline.Font );
1187	End;
1188
1189	Procedure TMainForm.SetApplicationFont( NewFont: TFont );
1190	Begin
1191	if ( not SettingFont ) and ( not StartingUp ) then
1192	begin
1193	Settings.Fonts[ ApplicationFontIndex ] := NewFont;
1194	SaveSettings;
1195	ApplySettings;
1196	SetLayout;
1197	end;
1198	End;
1199
1200	Procedure TMainForm.SearchResultsListBoxOnFontChange (Sender: TObject);
1201	Begin
1202	SetApplicationFont( SearchResultsListBox.Font );
1203	End;
1204
1205	Procedure TMainForm.OnDragOverWindow(Sender: TObject; Source: TObject;
1206	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
1207	Begin
1208	if Source is TExternalDragDropObject then
1209	Accept := true;
1210
1211	End;
1212
1213	Procedure TMainForm.OnDragDropToWindow(Sender: TObject; Source: TObject;
1214	X: LongInt; Y: LongInt);
1215	Begin
1216	OpenDroppedFile( Source );
1217	End;
1218
1219	Procedure TMainForm.OnWindowTab( Sender: TObject );
1220	Begin
1221	OnWindowBackTab( Sender ); // for now
1222	End;
1223
1224	Procedure TMainForm.OnWindowBackTab( Sender: TObject );
1225	Begin
1226	case NoteBook.PageIndex of
1227	piContents:
1228	ContentsOutline.Focus;
1229	piIndex:
1230	IndexListBox.Focus;
1231	piSearch:
1232	SearchResultsListBox.Focus;
1233	piNotes:
1234	NotesListBox.Focus;
1235	end;
1236	End;
1237
1238	Procedure TMainForm.OnWindowFontChange( Sender: TObject );
1239	begin
1240	if not DisplayingTopicWindow then
1241	SetTopicFont( TControl(Sender).Font );
1242	end;
1243
1244	Procedure TMainForm.DisplayPanelOnDragOver (Sender: TObject; Source: TObject;
1245	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
1246	Begin
1247	if Source is TExternalDragDropObject then
1248	Accept := true;
1249	End;
1250
1251	Procedure TMainForm.NotesListBoxOnDragOver (Sender: TObject; Source: TObject;
1252	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
1253	Begin
1254	if Source is TExternalDragDropObject then
1255	Accept := true;
1256	End;
1257
1258	Procedure TMainForm.DisplayPanelOnDragDrop (Sender: TObject; Source: TObject;
1259	X: LongInt; Y: LongInt);
1260	Begin
1261	OpenDroppedFile( Source );
1262	End;
1263
1264	Procedure TMainForm.NotesListBoxOnDragDrop (Sender: TObject; Source: TObject;
1265	X: LongInt; Y: LongInt);
1266	Begin
1267	OpenDroppedFile( Source );
1268	End;
1269
1270	Procedure TMainForm.SearchResultsListBoxOnDragDrop (Sender: TObject;
1271	Source: TObject; X: LongInt; Y: LongInt);
1272	Begin
1273	OpenDroppedFile( Source );
1274	End;
1275
1276	Procedure TMainForm.SearchResultsListBoxOnDragOver (Sender: TObject;
1277	Source: TObject; X: LongInt; Y: LongInt; State: TDragState;
1278	Var Accept: Boolean);
1279	Begin
1280	if Source is TExternalDragDropObject then
1281	Accept := true;
1282	End;
1283
1284	Procedure TMainForm.IndexListBoxOnDragDrop (Sender: TObject; Source: TObject;
1285	X: LongInt; Y: LongInt);
1286	Begin
1287	OpenDroppedFile( Source );
1288	End;
1289
1290	Procedure TMainForm.IndexListBoxOnDragOver (Sender: TObject; Source: TObject;
1291	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
1292	Begin
1293	if Source is TExternalDragDropObject then
1294	Accept := true;
1295	End;
1296
1297	Procedure TMainForm.ContentsOutlineOnDragOver (Sender: TObject;
1298	Source: TObject; X: LongInt; Y: LongInt; State: TDragState;
1299	Var Accept: Boolean);
1300	Begin
1301	if Source is TExternalDragDropObject then
1302	Accept := true;
1303	End;
1304
1305	Procedure TMainForm.ContentsOutlineOnDragDrop (Sender: TObject;
1306	Source: TObject; X: LongInt; Y: LongInt);
1307	Begin
1308	OpenDroppedFile( Source );
1309	End;
1310
1311	Procedure TMainForm.OpenDroppedFile( Source: TObject );
1312	var
1313	DropObject: TExternalDragDropObject;
1314	Begin
1315	if not ( Source is TExternalDragDropObject ) then
1316	// probably not needed, but crashes during drag drop completely
1317	// screw PM, so best to be sure!
1318	exit;
1319
1320	DropObject := Source as TExternalDragDropObject;
1321
1322	g_ExternalLinkFileName := AddSlash( DropObject.ContainerName )
1323	+ DropObject.SourceFilename;
1324	g_ExternalLinkTopic := '';
1325	g_ExternalLinkSourceFilename := ''; // don't care
1326
1327	g_ExternalLinkKeepCurrent := ( WinGetKeyState( HWND_DESKTOP,
1328	VK_SHIFT ) and $8000 ) > 0;
1329	PostMsg( Self.Handle,
1330	WM_FOLLOWEXTERNALLINK,
1331	0,
1332	0 );
1333
1334	End;
1335
1336	Procedure TMainForm.MainFormOnDragOver (Sender: TObject; Source: TObject;
1337	X: LongInt; Y: LongInt; State: TDragState; Var Accept: Boolean);
1338	Begin
1339	Accept := true;
1340	End;
1341
1342	Procedure TMainForm.MainFormOnDragDrop (Sender: TObject; Source: TObject;
1343	X: LongInt; Y: LongInt);
1344	Begin
1345	End;
1346
1347	Procedure TMainForm.ContentsOutlineOnItemClick (Node: TNode);
1348	Begin
1349	DisplaySelectedContentsTopic;
1350	End;
1351
1352	Procedure TMainForm.SetMainCaption;
1353	begin
1354	if ( Trim( MainTitle ) = '' )
1355	or ( StringsSame( Trim( MainTitle ), HelpProgramTitle ) ) then
1356	// supress "Help - " or "Help - Help"
1357	Caption := HelpProgramTitle
1358	else
1359	Caption := HelpProgramTitle + ' - ' + MainTitle
1360	end;
1361
1362	Procedure TMainForm.OnLanguageEvent( Language: TLanguageFile;
1363	const Apply: boolean );
1364	Begin
1365	// get rid of mru menu items
1366	DestroyListObjects( MRUMenuItems );
1367	MRUMenuItems.Clear;
1368
1369	Language.LoadComponentLanguage( self, Apply );
1370
1371	if Apply then
1372	begin
1373	// copy menu hints to toolbar hints
1374	Coolbar.Sections[ ciOpen ].Hint := OpenMI.Hint;
1375	Coolbar.Sections[ ciBack ].Hint := NavigateBackMI.Hint;
1376	Coolbar.Sections[ ciForward ].Hint := NavigateForwardMI.Hint;
1377	Coolbar.Sections[ ciPrint ].Hint := PrintMI.Hint;
1378	Coolbar.Sections[ ciAddNote ].Hint := AddNoteMI.Hint;
1379	Coolbar.Sections[ ciAddBookmark ].Hint := AddBookmarkMI.Hint;
1380	Coolbar.Sections[ ciPrevious ].Hint := NavigatePreviousMI.Hint;
1381	Coolbar.Sections[ ciNext ].Hint := NavigateNextMI.Hint;
1382	Coolbar.Sections[ ciGlobalSearch ].Hint := GlobalSearchMI.Hint;
1383	end;
1384
1385	// Load strings referred to by code...
1386	// ----------------------------------------------------------
1387
1388	Language.LL( Apply, FileOpenTitle, 'FileOpenTitle', 'Open Help Files' );
1389	Language.LL( Apply, LoadingFileMsg, 'LoadingFileMsg', 'Loading file ' );
1390	Language.LL( Apply, HelpFileError, 'HelpFileError', 'Could not open ' );
1391	Language.LL( Apply, LoadingStatusDisplaying, 'LoadingStatusDisplaying', 'Displaying...' );
1392	Language.LL( Apply, LoadingStatusNotesAndBookmarks, 'LoadingStatusNotesAndBookmarks', 'Loading notes/bookmarks...' );
1393	Language.LL( Apply, LoadingStatusContents, 'LoadingStatusContents', 'Display contents... ' );
1394	Language.LL( Apply, LoadingStatusIndex, 'LoadingStatusIndex', 'Display index... ' );
1395	Language.LL( Apply, LoadingStatusDone, 'LoadingStatusDone', 'Done' );
1396
1397	Language.LL( Apply, HelpFilesDesc, 'HelpFilesDesc', 'Help Files (.inf,.hlp)' );
1398	Language.LL( Apply, AllFilesDesc, 'AllFilesDesc', 'All Files (*)' );
1399	Language.LL( Apply, LanguageFilesDesc, 'LanguageFilesDesc', 'NewView Language Files (*.lng)' );
1400
1401	Language.LL( Apply, SaveLanguageTitle, 'SaveLanguageTitle', 'Save/Update Language File' );
1402	Language.LL( Apply, OpenLanguageTitle, 'OpenLanguageTitle', 'Open Language File' );
1403	Language.LL( Apply, SaveLanguageError, 'SaveLanguageError', 'Error saving language file: ' );
1404
1405	Language.LL( Apply, HelpManagerVersionTitle, 'HelpManagerVersionTitle', 'Help Manager Version' );
1406
1407	Language.LL( Apply, FindResourceIDTitle, 'FindResourceIDTitle', 'Find Resource ID' );
1408	Language.LL( Apply, FindResourceIDPrompt, 'FindResourceIDPrompt', 'Enter the resource ID to find' );
1409	Language.LL( Apply, InvalidResourceIDError, 'InvalidResourceIDError', 'Invalid resource ID entered' );
1410	Language.LL( Apply, ResourceIDNotFoundError, 'ResourceIDNotFoundError', 'Resource ID not found' );
1411
1412	Language.LL( Apply, OpenSpecialTitle, 'OpenSpecialTitle', 'Open Special' );
1413	Language.LL( Apply, OpenSpecialPrompt, 'OpenSpecialPrompt', 'Enter help file name/environment variable name' );
1414
1415	Language.LL( Apply, PrintTopicTitle, 'PrintTopicTitle', 'Print Topic' );
1416	Language.LL( Apply, NoPrinterError, 'NoPrinterError', 'You don''t have a printer configured.' );
1417	Language.LL( Apply, SelectWindowToPrintError, 'SelectWindowToPrintError', 'You must select the window you want to print.' );
1418	Language.LL( Apply, PrintingError, 'PrintingError', 'Error while printing: ' );
1419	Language.LL( Apply, StoppingPrintMsg, 'StoppingPrintMsg', 'Stopping print...' );
1420	Language.LL( Apply, PrintStoppedMsg, 'PrintStoppedMsg', 'Printing stopped' );
1421	Language.LL( Apply, CheckStopPrintTitle, 'CheckStopPrintTitle', 'Stop Print?' );
1422	Language.LL( Apply, CheckStopPrintMsg, 'CheckStopPrintMsg', 'Printing is still in progress. It will be stopped if you close.' );
1423
1424	Language.LL( Apply, TopicInfoTitle, 'TopicInfo.Title', 'Topic Information' );
1425	Language.LL( Apply, TopicInfoTopicTitle, 'TopicInfo.TopicTitle', 'Title: ' );
1426	Language.LL( Apply, TopicInfoIndex, 'TopicInfo.Index', 'Index: ' );
1427	Language.LL( Apply, TopicInfoFile, 'TopicInfo.File', 'File: ' );
1428	Language.LL( Apply, TopicInfoResourceIDs, 'TopicInfo.ResourceIDs', 'Resource IDs:' );
1429	Language.LL( Apply, TopicInfoNoResourceIDs, 'TopicInfo.NoResourceIDs', ' (None)' );
1430
1431	Language.LL( Apply, ParameterCountLabel, 'ParameterCountLabel', 'Parameter Count: ' );
1432
1433	Language.LL( Apply, NewViewHelpTitle, 'NewViewHelpTitle', 'NewView Help' );
1434	Language.LL( Apply, AlreadyNewviewHelp, 'AlreadyNewviewHelp', 'You are already viewing the NewView help file' );
1435	Language.LL( Apply, NewViewHelpNotFound, 'NewViewHelpNotFound', 'Couldn''t find the NewView helpfile: ' );
1436
1437	Language.LL( Apply, InvalidLinkErrorTitle, 'InvalidLinkErrorTitle', 'Invalid Link' );
1438	Language.LL( Apply, InvalidLinkError, 'InvalidLinkError', 'Cannot follow link to nonexistent topic' );
1439	Language.LL( Apply, InvalidResourceIDLinkErrorA, 'InvalidResourceIDLinkErrorA', 'Could not find linked topic (Resource #' );
1440	Language.LL( Apply, InvalidResourceIDLinkErrorB, 'InvalidResourceIDLinkErrorB', '). This may be from another file.' );
1441
1442	Language.LL( Apply, OpenedTopicMsg, 'OpenedTopicMsg', 'Opened topic #' );
1443
1444	Language.LL( Apply, AddNoteTitle, 'AddNoteTitle', 'Add Note' );
1445	Language.LL( Apply, AddNoteCursorError, 'AddNoteCursorError', 'Before adding a note, position the cursor where you want the note to be placed.' );
1446	Language.LL( Apply, NoteWithinNoteError, 'NoteWithinNoteError', 'You can''t add a note within a link or another note' );
1447	Language.LL( Apply, LoadNotesTitle, 'LoadNotesTitle', 'Load Notes' );
1448	Language.LL( Apply, LoadNotesError, 'LoadNotesError', 'Error loading notes from ' );
1449	Language.LL( Apply, SaveNotesTitle, 'SaveNotesTitle', 'Save Notes' );
1450	Language.LL( Apply, SaveNotesError, 'SaveNotesError', 'Error saving notes to ' );
1451
1452	Language.LL( Apply, UntitledBookmarkName, 'UntitledBookmarkName', '(Untitled)' );
1453	Language.LL( Apply, LoadBookmarksTitle, 'LoadBookmarksTitle', 'Load Bookmarks' );
1454	Language.LL( Apply, LoadBookmarksError, 'LoadBookmarksError', 'Could not load bookmarks: ' );
1455	Language.LL( Apply, SaveBookmarksTitle, 'SaveBookmarksTitle', 'Save Bookmarks' );
1456	Language.LL( Apply, SaveBookmarksError, 'SaveBookmarksError', 'Could not save bookmarks: ' );
1457
1458	Language.LL( Apply, ApplicationErrorTitle, 'ApplicationErrorTitle', 'Application Error - Close?' );
1459	Language.LL( Apply, ApplicationErrorA, 'ApplicationErrorA', 'This application has crashed. ' );
1460	Language.LL( Apply, ApplicationErrorB, 'ApplicationErrorB', '(Details logged to ' );
1461	Language.LL( Apply, ApplicationErrorC, 'ApplicationErrorC', 'Close application? ' );
1462
1463	Language.LL( Apply, EnvironmentVarErrorTitle, 'EnvironmentVarErrorTitle', 'Environment Variable Warning' );
1464	Language.LL( Apply, EnvironmentVarError,
1465	'EnvironmentVarError',
1466	'NewView found a problem with environment variables. '
1467	+ 'These are used when finding help files. '
1468	+ 'You may have problems launching help.' );
1469	Language.LL( Apply, EnvironmentVarUndefined, 'EnvironmentVarUndefined', 'Undefined: ' );
1470
1471	Language.LL( Apply, FindTitle, 'FindTitle', 'Find' );
1472	Language.LL( Apply, FindSelectWindowError, 'FindSelectWindowError', 'Click in a window first' );
1473	Language.LL( Apply, FindPrompt, 'FindPrompt', 'Enter the text to find' );
1474	Language.LL( Apply, TextNotFoundMsg, 'TextNotFoundMsg', 'Text not found' );
1475
1476	Language.LL( Apply, FilesInfoTitle, 'FilesInfoTitle', 'Open Files Information' );
1477	Language.LL( Apply, FilesInfoOverallTitle, 'FilesInfoOverallTitle', 'Title: ' );
1478	Language.LL( Apply, FilesInfoFilename, 'FilesInfoFilename', 'Filename: ' );
1479	Language.LL( Apply, FilesInfoFileTitle, 'FilesInfoFileTitle', ' Title: ' );
1480	Language.LL( Apply, FilesInfoTopicCount, 'FilesInfoTopicCount', ' Topic Count: ' );
1481	Language.LL( Apply, FilesInfoIndexCount, 'FilesInfoIndexCount', ' Index Count: ' );
1482	Language.LL( Apply, FilesInfoDictionaryCount, 'FilesInfoDictionaryCount', ' Dictionary Count: ' );
1483	Language.LL( Apply, FilesInfoFileSize, 'FilesInfoFileSize', ' Size: ' );
1484	Language.LL( Apply, FilesInfoTotalTopicCount, 'FilesInfoTotalTopicCount', 'Total Topic Count: ' );
1485	Language.LL( Apply, FilesInfoTotalIndexCount, 'FilesInfoTotalIndexCount', 'Total Index Count: ' );
1486	Language.LL( Apply, FilesInfoTotalFileSize, 'FilesInfoTotalFileSize', 'Total File Size: ' );
1487
1488	Language.LL( Apply, SearchTitle, 'SearchTitle', 'Search' );
1489	Language.LL( Apply, SearchSyntaxError, 'SearchSyntaxError', 'Error in search syntax: ' );
1490	Language.LL( Apply, SearchingMsg, 'SearchingMsg', 'Searching...' );
1491	Language.LL( Apply, NoSearchMatchesMsg, 'NoSearchMatchesMsg', 'No matches found for ' );
1492	Language.LL( Apply, SearchFoundMsgA, 'SearchFoundMsgA', 'Found ' );
1493	Language.LL( Apply, SearchFoundMsgB, 'SearchFoundMsgB', ' matches for ' );
1494
1495	Language.LL( Apply, FileSaveTitle, 'FileSaveTitle', 'Save Topic' );
1496	Language.LL( Apply, FileSaveSelectWindowError, 'FileSaveSelectWindowError', 'Before saving, click in the window you want to save.' );
1497	Language.LL( Apply, DefaultSaveTopicFilename, 'DefaultSaveTopicFilename', 'topic.txt' );
1498
1499	Language.LL( Apply, ReplaceFilePromptA, 'ReplaceFilePromptA', 'Replace existing file ' );
1500	Language.LL( Apply, ReplaceFilePromptB, 'ReplaceFilePromptB', '?' );
1501	Language.LL( Apply, UnableToSaveError, 'UnableToSaveError', 'Unable to save file: ' );
1502
1503	Language.LL( Apply, UsageTitle, 'UsageTitle', 'NewView Command Line' );
1504	Language.LL( Apply, UsageText1, 'UsageText1', 'Usage: ' );
1505	Language.LL( Apply, UsageText2, 'UsageText2', 'NewView <filename> [<topic>]' );
1506	Language.LL( Apply, UsageText3, 'UsageText3', ' /s:<text> Do search for <text>' );
1507	Language.LL( Apply, UsageText4, 'UsageText4', ' /g:<text> Do global search for <text>' );
1508	Language.LL( Apply, UsageText5, 'UsageText5', ' /pos:l,b,w,h Set window position' );
1509	Language.LL( Apply, UsageText6, 'UsageText6', ' /lang:<lang> Load UI language' );
1510	Language.LL( Apply, UsageText7, 'UsageText7', ' /title:<title> Set window title' );
1511	Language.LL( Apply, UsageText8, 'UsageText8', 'See help for details' );
1512
1513	Language.LL( Apply, GoBackHint, 'GoBackHint', 'Go back to ' );
1514
1515	Language.LL( Apply, SelectAllTitle, 'SelectAllTitle', 'Select All' );
1516	Language.LL( Apply, SelectAllWindowError, 'SelectAllWindowError', 'Click in a text window first' );
1517
1518	Language.LL( Apply, EditNoteMsg, 'EditNoteMsg', 'Click to edit note' );
1519	Language.LL( Apply, ExternalLinkMsg, 'ExternalLinkMsg', 'Link to another file' );
1520	Language.LL( Apply, LinkMsg, 'LinkMsg', 'Link to ' );
1521	Language.LL( Apply, UnknownLinkMsg, 'UnknownLinkMsg', 'Unknown link' );
1522	Language.LL( Apply, FootnoteMsg, 'FootnoteMsg', 'Footnote' );
1523
1524	Language.LL( Apply, ExternalLinkTitle, 'ExternalLinkTitle', 'File Link' );
1525	Language.LL( Apply, ExternalLinkError, 'ExternalLinkError', 'Sorry, this is a link to another file, which is not currently implemented in NewView' );
1526
1527	Language.LL( Apply, MRUMultipleFilesHint, 'MRUMultipleFilesHint', 'files' );
1528	Language.LL( Apply, HelpProgramTitle, 'HelpProgramTitle', 'Help' );
1529
1530	Language.LL( Apply, WindowsHelpTitle, 'WindowsHelpTitle', 'Windows Help' );
1531	Language.LL( Apply,
1532	WindowsHelpPrompt,
1533	'WindowsHelpPrompt',
1534	'This file is a Windows help file. '
1535	+ 'Would you like to start Windows Help viewer?' );
1536
1537	Language.LL( Apply, ErrorTitle, 'ErrorTitle', 'Error' );
1538
1539	Language.LL( Apply, FindTopicNameTitle, 'FindTopicNameTitle', 'Find Topic By Name' );
1540	Language.LL( Apply, FindTopicNamePrompt, 'FindTopicNamePrompt', 'Enter the topic name to search for' );
1541	Language.LL( Apply, TopicNameNotFoundError, 'TopicNameNotFoundError', 'Topic name not found' );
1542	Language.LL( Apply, SplitBarDblClickToShow, 'SplitBarDblClickToShow', 'Double-click to show left panel' );
1543	Language.LL( Apply, SplitBarDblClickToHide, 'SplitBarDblClickToHide', 'Double-click to hide left panel' );
1544
1545	SetMainCaption;
1546	CreateMRUMenuItems;
1547
1548	// ----------------------------------------------------------
1549	end;
1550
1551	Procedure TMainForm.DebugLoadLanguageMIOnClick (Sender: TObject);
1552	Var
1553	Dir: string;
1554	Filename: string;
1555	Begin
1556	Dir := GetApplicationDir;
1557	if not DoOpenFileDialog( OpenLanguageTitle,
1558	LanguageFilesDesc
1559	+ '\|*.lng\|'
1560	+ AllFilesDesc
1561	+ '\|*',
1562	'*.lng',
1563	Dir,
1564	Filename ) then
1565	exit;
1566
1567	LoadLanguage( Filename );
1568	End;
1569
1570	Procedure TMainForm.DebugSaveLanguageFileMIOnClick (Sender: TObject);
1571	Var
1572	LanguageFile: TLanguageFile;
1573	Dir: string;
1574	Filename: string;
1575	Begin
1576	Dir := GetApplicationDir;
1577	if not DoSaveFileDialog( SaveLanguageTitle,
1578	LanguageFilesDesc
1579	+ '\|*.lng\|'
1580	+ AllFilesDesc
1581	+ '\|*',
1582	'*.lng',
1583	Dir,
1584	Filename ) then
1585	exit;
1586
1587	// get rid of mru menu items so they don't clutter the language file
1588	DestroyListObjects( MRUMenuItems );
1589	MRUMenuItems.Clear;
1590
1591	try
1592	LanguageFile := TLanguageFile.Create( Filename );
1593
1594	UpdateLanguage( LanguageFile );
1595	except
1596	on E: Exception do
1597	begin
1598	DoErrorDlg( SaveLanguageTitle,
1599	SaveLanguageError + E.Message );
1600	exit;
1601	end;
1602	end;
1603
1604	LanguageFile.Destroy;
1605
1606	CreateMRUMenuItems;
1607	End;
1608
1609	Procedure TMainForm.SearchResultsListBoxOnClick (Sender: TObject);
1610	Begin
1611	DisplaySelectedSearchResultTopic;
1612	End;
1613
1614	Procedure TMainForm.VSplitBarOnDblClick (Sender: TObject);
1615	Begin
1616	ShowLeftPanel := not ShowLeftPanel;
1617	End;
1618
1619	Procedure TMainForm.DebugHelpManagerVersionMIOnClick (Sender: TObject);
1620	Begin
1621	DoMessageDlg( HelpManagerVersionTitle,
1622	HelpManagerVersion );
1623	End;
1624
1625	Procedure TMainForm.DebugTopicByResourceIDMIOnClick (Sender: TObject);
1626	var
1627	ResourceIDString: string;
1628	ResourceID: USHORT;
1629	Begin
1630	if not DoInputQuery( FindResourceIDTitle,
1631	FindResourceIDPrompt,
1632	ResourceIDString ) then
1633	exit;
1634	try
1635	ResourceID := StrToInt( ResourceIDString );
1636	except
1637	DoErrorDlg( FindResourceIDTitle,
1638	InvalidResourceIDError );
1639	exit;
1640	end;
1641
1642	if not DisplayTopicByResourceID( ResourceID ) then
1643	DoErrorDlg( FindResourceIDTitle,
1644	ResourceIDNotFoundError );
1645	End;
1646
1647	Procedure TMainForm.ViewHighlightSearchWordsMIOnClick (Sender: TObject);
1648	Begin
1649	ViewHighlightSearchWordsMI.Checked := not ViewHighlightSearchWordsMI.Checked;
1650	RefreshWindows( Windows );
1651	End;
1652
1653	Procedure TMainForm.FileNewWindowMIOnClick (Sender: TObject);
1654	Begin
1655	Exec( GetApplicationFilename, '' );
1656	End;
1657
1658	Function TMainForm.OpenFilesFromTextList( const TextList: string;
1659	const DisplayFirstTopic: boolean ): boolean;
1660	var
1661	Filenames: TStringList;
1662	begin
1663	Filenames := TStringList.Create;
1664	StringToList( TextList, Filenames, '+' );
1665	if Filenames.Count > 0 then
1666	begin
1667	result := OpenFiles( Filenames, '', DisplayFirstTopic );
1668	end
1669	else
1670	begin
1671	CloseFile;
1672	end;
1673	Filenames.Destroy;
1674	end;
1675
1676	Procedure TMainForm.OpenSpecialMIOnClick (Sender: TObject);
1677	var
1678	Parameter: string;
1679	Begin
1680	if not OKToCloseFile then
1681	exit;
1682
1683	if DoInputQuery( OpenSpecialTitle,
1684	OpenSpecialPrompt,
1685	Parameter ) then
1686	begin
1687	if OpenFilesFromTextList( Parameter, true ) then
1688	begin
1689	ClearHelpManager;
1690	end;
1691	end;
1692	End;
1693
1694	Procedure TMainForm.NotesListBoxOnScan (Sender: TObject;
1695	Var KeyCode: TKeyCode);
1696	Begin
1697	if KeyCode in [ kbDel, kbBkSp ] then
1698	if NotesListBox.ItemIndex <> -1 then
1699	DeleteNote( NotesListBox.ItemIndex );
1700	End;
1701
1702	Procedure TMainForm.ViewPopupMenuOnPopup (Sender: TObject);
1703	var
1704	Window: THelpWindow;
1705	Begin
1706	Window := GetActiveWindow;
1707	if Window = nil then
1708	begin
1709	SearchPMI.Enabled := false;
1710	exit;
1711	end;
1712	SearchPMI.Enabled := Window.View.SelectionLength > 0;
1713	End;
1714
1715	Procedure TMainForm.SearchPMIOnClick (Sender: TObject);
1716	var
1717	Window: THelpWindow;
1718	Begin
1719	Window := GetActiveWindow;
1720	if Window = nil then
1721	exit;
1722
1723	SearchFor( Window.View.GetSelectionAsString );
1724	end;
1725
1726	function TMainForm.DisplayTopicByGlobalName( const TopicName: string ): boolean;
1727	var
1728	Topic: TTopic;
1729	begin
1730	Topic := FindTopicByGlobalName( TopicName );
1731	if Topic = nil then
1732	begin
1733	Result := false;
1734	exit;
1735	end;
1736
1737	result := true;
1738
1739	DisplayTopic( Topic );
1740	end;
1741
1742	function TMainForm.DisplayTopicByName( const TopicName: string ): boolean;
1743	var
1744	Topic: TTopic;
1745	begin
1746	Topic := FindTopicByName( TopicName );
1747	if Topic = nil then
1748	begin
1749	Result := false;
1750	exit;
1751	end;
1752
1753	result := true;
1754
1755	DisplayTopic( Topic );
1756	end;
1757
1758	function TMainForm.DisplayTopicByResourceID( ID: uint16 ): boolean;
1759	var
1760	Topic: TTopic;
1761	begin
1762	Topic := FindTopicByResourceID( ID );
1763	if Topic = nil then
1764	begin
1765	Result := false;
1766	exit;
1767	end;
1768
1769	result := true;
1770
1771	DisplayTopic( Topic );
1772	end;
1773
1774	Procedure TMainForm.ViewSourceMIOnClick (Sender: TObject);
1775	var
1776	Window: THelpWindow;
1777	Begin
1778	Window := GetActiveWindow;
1779	if Window = nil then
1780	exit;
1781	InformationForm.FText := Window.View.Text;
1782	InformationForm.ShowModal;
1783	End;
1784
1785	Procedure TMainForm.PrintMIOnClick (Sender: TObject);
1786	Begin
1787	PrintTopics;
1788	End;
1789
1790	type
1791	TPrintSingle = class
1792	Topic: TTopic;
1793	end;
1794
1795	TPrintList = class
1796	Topics: TList;
1797	constructor Create;
1798	destructor Destroy; override;
1799	end;
1800
1801	TPrintAll = class
1802	end;
1803
1804	constructor TPrintList.Create;
1805	begin
1806	Topics := TList.Create;
1807	end;
1808
1809	destructor TPrintList.Destroy;
1810	begin
1811	Topics.Destroy;
1812	end;
1813
1814	// Recursive
1815	Procedure GetTopicsInWindows( Windows: TList;
1816	Topics: TList );
1817	var
1818	Window: THelpWindow;
1819	i: longint;
1820	begin
1821	for i := 0 to Windows.Count - 1 do
1822	begin
1823	Window := Windows[ i ];
1824	Topics.Add( Window.Topic );
1825	GetTopicsInWindows( Window.ChildWindows, Topics );
1826	end;
1827	end;
1828
1829	Procedure TMainForm.PrintTopics;
1830	var
1831	Window: THelpWindow;
1832	PrintParameters: TObject;
1833	Begin
1834	if Printer.Printers.Count = 0 then
1835	begin
1836	DoErrorDlg( PrintTopicTitle,
1837	NoPrinterError );
1838	exit;
1839	end;
1840
1841	if NewViewPrintDialog.ShowModal <> mrOK then
1842	exit;
1843
1844	if PrintThread = nil then
1845	begin
1846	PrintThread := TGenericThreadManager.Create( self );
1847	PrintThread.OnProgressUpdate := OnPrintProgress;
1848	PrintThread.OnJobComplete := OnPrintComplete;
1849
1850	end;
1851
1852	case NewViewPrintDialog.WhatToPrintRadioGroup.ItemIndex of
1853	0:
1854	begin
1855	PrintParameters := TPrintSingle.Create;
1856	Window := GetActiveWindow;
1857	TPrintSingle( PrintParameters ).Topic := Window.Topic;
1858	end;
1859
1860	1:
1861	begin
1862	PrintParameters := TPrintList.Create;
1863	GetTopicsInWindows( Windows,
1864	TPrintList( PrintParameters ).Topics );
1865	end;
1866
1867	2:
1868	begin
1869	PrintParameters := TPrintAll.Create;
1870	end;
1871	end;
1872
1873	PrintThread.StartJob( DoPrinting, PrintParameters );
1874
1875	SetStatus( 'Printing...' );
1876	end;
1877
1878	procedure PrintTopic( Topic: TTopic;
1879	RichTextSettings: TRichTextSettings;
1880	Var PageY: longint );
1881	var
1882	TopicText: TAstring;
1883	TitleText: TAString;
1884	ImageOffsets: TList;
1885	Images: TImageList;
1886	begin
1887	TopicText := TAstring.Create;
1888	Images := TImageList.Create( nil );
1889	TitleText := TAString.Create;
1890	ImageOffsets := TList.Create;
1891
1892	TitleText.AddString( '<leftmargin 1><h1>'
1893	+ Topic.Title
1894	+ '</h>'
1895	+ #10
1896	+ #10 );
1897	PrintRichText( TitleText.AsPChar,
1898	Images,
1899	RichTextSettings,
1900	PageY );
1901
1902	Topic.GetText( nil, // no highlights
1903	false, // no codes
1904	false, // no word separators
1905	TopicText, // text to print
1906	ImageOffsets, // image offsets
1907	nil ); // no highlight matches required
1908
1909	THelpFile( Topic.HelpFile ).GetImages( ImageOffsets,
1910	Images );
1911
1912	PrintRichText( TopicText.AsPChar,
1913	Images,
1914	RichTextSettings,
1915	PageY );
1916
1917	TitleText.Clear;
1918	TitleText.AddString( #10
1919	+ '<leftmargin 1><align center>'
1920	+ '--------------------------------------------'
1921	+ #10
1922	+ #10 );
1923	PrintRichText( TitleText.AsPChar,
1924	Images,
1925	RichTextSettings,
1926	PageY );
1927
1928	ImageOffsets.Destroy;
1929	TitleText.Destroy;
1930	Images.Destroy;
1931	TopicText.Destroy;
1932	end;
1933
1934	function TMainForm.DoPrinting( Parameters: TObject ): TObject;
1935	var
1936	PrintSingle: TPrintSingle;
1937	PrintList: TPrintList;
1938	PageY: longint;
1939	RichTextSettings: TRichTextSettings;
1940	PrinterResolution: longint;
1941	MarginSize: longint;
1942
1943	HelpFile: THelpFile;
1944
1945	FileIndex: longint;
1946	TopicIndex: longint;
1947
1948	TotalTopics: longint;
1949	TotalTopicIndex: longint;
1950	begin
1951	PrintSingle := nil;
1952	PrintList := nil;
1953
1954	if Parameters is TPrintSingle then
1955	PrintSingle := Parameters as TPrintSingle
1956	else if Parameters is TPrintList then
1957	PrintList := Parameters as TPrintList;
1958
1959	if Parameters is TPrintSingle then
1960	Printer.Title := PrintSingle.Topic.Title
1961	else
1962	Printer.Title := MainTitle;
1963
1964	Printer.BeginDoc;
1965
1966	PageY := Printer.PageHeight - 1;
1967
1968	RichTextSettings := TRichTextSettings.Create( nil );
1969	RichTextSettings.NormalFont := Settings.NormalFont;
1970	RichTextSettings.FixedFont := Settings.FixedFont;
1971
1972	// set half inch margins
1973	PrinterResolution := Printer.Canvas.HorizontalResolution; // pixels per meter!
1974	MarginSize := Round( PrinterResolution * 0.0125 ); // 12.5 mm = 0.5 inch
1975	RichTextSettings.Margins := Rect( MarginSize,
1976	MarginSize,
1977	MarginSize,
1978	MarginSize );
1979
1980	try
1981	if Parameters is TPrintSingle then
1982	begin
1983	PrintTopic( PrintSingle.Topic, RichTextSettings, PageY );
1984	end
1985
1986	else if Parameters is TPrintList then
1987	begin
1988	for TopicIndex := 0 to PrintList.Topics.Count -1 do
1989	begin
1990	PrintThread.UpdateProgress( TopicIndex, PrintList.Topics.Count, 'Printing' );
1991
1992	PrintTopic( PrintList.Topics[ TopicIndex ] , RichTextSettings, PageY );
1993
1994	if PrintThread.StopRequested then
1995	break;
1996	end
1997	end
1998
1999	else if Parameters is TPrintAll then
2000	begin
2001	// first count up total number of topics.
2002	TotalTopics := 0;
2003	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2004	begin
2005	HelpFile := CurrentOpenFiles[ FileIndex ];
2006	inc( TotalTopics, HelpFile.TopicCount );
2007	end;
2008
2009	TotalTopicIndex := 0;
2010	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2011	begin
2012	HelpFile := CurrentOpenFiles[ FileIndex ];
2013	for TopicIndex := 0 to HelpFile.TopicCount - 1 do
2014	begin
2015	PrintThread.UpdateProgress( TotalTopicIndex, TotalTopics, 'Printing' );
2016	PrintTopic( HelpFile.Topics[ TopicIndex ], RichTextSettings, PageY );
2017	if PrintThread.StopRequested then
2018	break;
2019	inc( TotalTopicIndex );
2020	end;
2021	end;
2022	end;
2023	except
2024	on E: EPrinter do
2025	begin
2026	DoErrorDlg( PrintTopicTitle,
2027	PrintingError + E.Message );
2028	end;
2029	end;
2030
2031	Printer.EndDoc;
2032	result := nil;
2033	End;
2034
2035	procedure TMainForm.OnPrintProgress( n, outof: integer;
2036	Message: string );
2037	begin
2038	SetProgress( n, outof, message );
2039	end;
2040
2041	procedure TMainForm.OnPrintComplete( Dummy: TObject );
2042	begin
2043	SetStatus( 'Printing complete' );
2044	ResetProgress;
2045	end;
2046
2047	// --------------------------------------------------
2048
2049	Procedure TMainForm.DebugShowWordSeparatorsMIOnClick (Sender: TObject);
2050	Begin
2051	DebugShowWordSeparatorsMI.Checked := not DebugShowWordSeparatorsMI.Checked;
2052	RefreshWindows( Windows );
2053	End;
2054
2055	Procedure TMainForm.DebugStressTestMIOnClick (Sender: TObject);
2056	var
2057	i: longint;
2058	NString: string;
2059	N: longint;
2060	Begin
2061	if not DoInputQuery( 'Stress Test',
2062	'Repititions?',
2063	NString ) then
2064	exit;
2065	N := StrToIntDef( NString, 1 );
2066	for i := 0 to N - 1 do
2067	begin
2068	ContentsOutline.GotoFirstNode;
2069	repeat
2070	DisplaySelectedContentsTopic;
2071	Application.ProcessMessages;
2072	until not ContentsOutline.GotoNextNodeDown;
2073	end;
2074	End;
2075
2076	// Find topic specified by global name, in all open files
2077	Function TMainForm.FindTopicByGlobalName( const Name: string ): TTopic;
2078	var
2079	FileIndex: longint;
2080	HelpFile: THelpFile;
2081	begin
2082	Result := nil;
2083
2084	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2085	begin
2086	HelpFile := CurrentOpenFiles[ FileIndex ];
2087	Result := HelpFile.FindTopicByGlobalName( Name );
2088	if Result <> nil then
2089	// found
2090	exit;
2091	end;
2092
2093	// not found.
2094	Result := nil;
2095	end;
2096
2097	// Find topic specified by numeric resource ID, in all open files
2098	Function TMainForm.FindTopicByResourceID( ID: uint16 ): TTopic;
2099	var
2100	FileIndex: longint;
2101	HelpFile: THelpFile;
2102	begin
2103	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2104	begin
2105	HelpFile := CurrentOpenFiles[ FileIndex ];
2106
2107	Result := HelpFile.FindTopicByResourceID( ID );
2108	if Result <> nil then
2109	// found
2110	exit;
2111	end;
2112
2113	// not found.
2114	Result := nil;
2115	end;
2116
2117	// Find topic specified by text name, in all open files
2118	Function TMainForm.FindTopicByName( const Name: string ): TTopic;
2119	var
2120	FileIndex: longint;
2121	HelpFile: THelpFile;
2122	begin
2123	Result := nil;
2124
2125	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2126	begin
2127	HelpFile := CurrentOpenFiles[ FileIndex ];
2128	Result := HelpFile.FindTopicByLocalName( Name );
2129	if Result <> nil then
2130	// found
2131	exit;
2132	end;
2133
2134	// not found.
2135	Result := nil;
2136	end;
2137
2138	// Find the target topic for the given link
2139	Function TMainForm.FindTopicForLink( Link: THelpLink ): TTopic;
2140	var
2141	HelpFile: THelpFile;
2142	begin
2143	HelpFile := Link.HelpFile as THelpFile;
2144	if Link is TFootnoteHelpLink then
2145	begin
2146	Result := HelpFile.Topics[ TFootnoteHelpLink( Link ).TopicIndex ];
2147	end
2148	else if Link is TInternalHelpLink then
2149	begin
2150	Result := HelpFile.Topics[ TInternalHelpLink( Link ).TopicIndex ];
2151	end
2152	else if Link is THelpLinkByResourceID then
2153	begin
2154	Result := FindTopicByResourceID( THelpLinkByResourceID( Link ).ResourceID );
2155	end
2156	end;
2157
2158	Procedure TMainForm.TopicPropertiesPMIOnClick (Sender: TObject);
2159	var
2160	Window: THelpWindow;
2161	Topic: TTopic;
2162	HelpFile: THelpFile;
2163	ResourceIDs: TList;
2164	i: longint;
2165	Begin
2166	Window := GetActiveWindow;
2167	if Window = nil then
2168	exit;
2169	Topic := Window.Topic;
2170	HelpFile := Topic.HelpFile as THelpFile;
2171
2172	ResourceIDs := TList.Create;
2173	HelpFile.FindResourceIDsForTopic( Topic,
2174	ResourceIDs );
2175
2176	with InformationForm.InformationMemo do
2177	begin
2178	Lines.Clear;
2179	Lines.Add( TopicInfoTitle );
2180	Lines.Add( TopicInfoTopicTitle + Topic.Title );
2181	Lines.Add( TopicInfoIndex + IntToStr( Topic.Index ) );
2182	Lines.Add( TopicInfoFile + HelpFile.Filename );
2183	Lines.Add( TopicInfoResourceIDs );
2184	for i := 0 to ResourceIDs.Count - 1 do
2185	Lines.Add( ' ' + IntToStr( longint( ResourceIDs[ i ] ) ) );
2186	if ResourceIDs.Count = 0 then
2187	Lines.Add( TopicInfoNoResourceIDs );
2188	end;
2189	ResourceIDs.Destroy;
2190
2191	InformationForm.ShowModal;
2192	End;
2193	Procedure TMainForm.NavigateForwardMIOnClick (Sender: TObject);
2194	Begin
2195	NavigateForward;
2196	End;
2197
2198	Procedure TMainForm.FocusFirstHelpWindow;
2199	begin
2200	if Windows.Count > 0 then
2201	THelpWindow( Windows[ 0 ] ).View.Focus;
2202	end;
2203
2204	Procedure TMainForm.IndexListBoxOnScan (Sender: TObject;
2205	Var KeyCode: TKeyCode);
2206	Begin
2207	case KeyCode of
2208	kbTab:
2209	begin
2210	FocusFirstHelpWindow;
2211	KeyCode := kbNull;
2212	end;
2213	kb_VK + VK_NEWLINE:
2214	DisplaySelectedIndexTopic;
2215	end;
2216	End;
2217
2218	Procedure TMainForm.SearchResultsListBoxOnScan (Sender: TObject;
2219	Var KeyCode: TKeyCode);
2220	Begin
2221	case KeyCode of
2222	kbTab:
2223	begin
2224	FocusFirstHelpWindow;
2225	KeyCode := kbNull;
2226	end;
2227
2228	kb_VK + VK_NEWLINE:
2229	DisplaySelectedSearchResultTopic;
2230	end;
2231	End;
2232
2233	Procedure TMainForm.ContentsOutlineOnScan (Sender: TObject;
2234	Var KeyCode: TKeyCode);
2235	Begin
2236	case KeyCode of
2237	kbTab:
2238	begin
2239	FocusFirstHelpWindow;
2240	KeyCode := kbNull;
2241	end;
2242	kb_VK + VK_NEWLINE:
2243	DisplaySelectedContentsTopic;
2244	end;
2245	End;
2246
2247	Procedure TMainForm.ToolsOptionsMIOnClick (Sender: TObject);
2248	Begin
2249	DoOptions;
2250	End;
2251
2252	Procedure TMainForm.EditGlobalSearchMIOnClick (Sender: TObject);
2253	Begin
2254	DoGlobalSearch( '' );
2255	End;
2256
2257	Procedure TMainForm.ViewExpandAllMIOnClick (Sender: TObject);
2258	Begin
2259	DisplayContents;
2260	ContentsOutline.ExpandAll;
2261	End;
2262
2263	Procedure TMainForm.DebugShowParamsMIOnClick (Sender: TObject);
2264	var
2265	tmpWindowPosition : TWindowPosition;
2266	Begin
2267	with InformationForm.InformationMemo do
2268	begin
2269	Lines.Clear;
2270	Lines.Add('');
2271
2272	CmdLineParameters.writeDetailsTo(Lines);
2273	end;
2274
2275	InformationForm.ShowModal;
2276	End;
2277
2278	Procedure TMainForm.EditBookmarksMIOnClick (Sender: TObject);
2279	Begin
2280	BookmarksForm.BookmarkList := Bookmarks;
2281	BookmarksForm.OpenBookmarkCallback := NavigateToBookmark;
2282	BookmarksForm.BookmarksChangedCallback := OnBookmarksChanged;
2283	BookmarksForm.Show;
2284
2285	// Since we are showing a nonmodal dialog, set the PM owner window
2286	// so that the bookmarks form remains on top.
2287	WinSetOwner( BookmarksForm.Frame.Handle,
2288	Frame.Handle );
2289	End;
2290
2291	Procedure TMainForm.CopyPMIOnClick (Sender: TObject);
2292	var
2293	Window: THelpWindow;
2294	Begin
2295	Window := GetActiveWindow;
2296	if Window = nil then
2297	exit;
2298	Window.View.CopySelectionToClipboard;
2299	End;
2300
2301	Procedure TMainForm.SelectAllPMIOnClick (Sender: TObject);
2302	var
2303	Window: THelpWindow;
2304	Begin
2305	Window := GetActiveWindow;
2306	if Window = nil then
2307	exit;
2308	Window.View.SelectAll;
2309	End;
2310
2311	Procedure TMainForm.AddNoteButtonOnClick (Sender: TObject);
2312	Begin
2313	AddNote;
2314	End;
2315
2316	Procedure TMainForm.EnableSearchButton;
2317	var
2318	CanSearch: boolean;
2319	begin
2320	CanSearch := false;
2321	if CurrentOpenFiles.Count > 0 then
2322	if trim( SearchTextEdit.Text ) > '' then
2323	CanSearch := true;
2324	SearchButton.Enabled := CanSearch;
2325	end;
2326
2327	Procedure TMainForm.SearchTextEditOnChange (Sender: TObject);
2328	Begin
2329	EnableSearchButton;
2330	End;
2331
2332	Procedure TMainForm.OnHint( Sender: TObject );
2333	begin
2334	SetStatus( Application.Hint );
2335	end;
2336
2337	Procedure TMainForm.DisplaySelectedIndexTopic;
2338	var
2339	Topic: TTopic;
2340	Begin
2341	if IndexListBox.ItemIndex = -1 then
2342	exit;
2343	Topic := DisplayedIndex.Objects[ IndexListBox.ItemIndex ] as TTopic;
2344	DisplayTopic( Topic );
2345	End;
2346
2347	Procedure TMainForm.IndexListBoxOnClick (Sender: TObject);
2348	Begin
2349	DisplaySelectedIndexTopic;
2350	End;
2351
2352	Procedure TMainForm.ViewCollapseAllMIOnClick (Sender: TObject);
2353	Begin
2354	DisplayContents;
2355	ContentsOutline.CollapseAll;
2356	DisplaySelectedContentsTopic;
2357	End;
2358
2359	Procedure TMainForm.NotesListBoxOnDblClick (Sender: TObject);
2360	Begin
2361	GotoCurrentNote;
2362	End;
2363
2364	function TMainForm.OwnHelpMode: boolean;
2365	var
2366	Filename: string;
2367	NamePart: string;
2368	begin
2369	result := false;
2370	if CurrentOpenFiles.Count <> 1 then
2371	exit;
2372
2373	Filename := THelpFile( CurrentOpenFiles[ 0 ] ).Filename;
2374	NamePart := ExtractFileName( Filename );
2375	Result := StrStarts( 'newview', NamePart );
2376	end;
2377
2378	Procedure TMainForm.HelpMIOnClick (Sender: TObject);
2379	Begin
2380	if OwnHelpMode then
2381	begin
2382	DoErrorDlg( NewViewHelpTitle,
2383	AlreadyNewviewHelp );
2384	exit;
2385	end;
2386	Application.HelpContents;
2387	End;
2388
2389	Procedure TMainForm.NotebookOnPageChanged (Sender: TObject);
2390	var
2391	FileIndex: longint;
2392	HelpFile: THelpFile;
2393	Begin
2394	EnableControls;
2395	case Notebook.PageIndex of
2396	piContents:
2397	begin
2398	// not really feasible to load contents here, as we rely
2399	// on it for many things
2400	ContentsOutline.Focus;
2401	end;
2402
2403	piIndex:
2404	begin
2405	if not IndexLoaded then
2406	begin
2407	LoadIndex;
2408	end;
2409	IndexSearchEdit.Focus;
2410	end;
2411
2412	piSearch:
2413	begin
2414	SearchButton.Focus;
2415	SearchTextEdit.Focus;
2416	end;
2417
2418	piNotes:
2419	begin
2420	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2421	begin
2422	HelpFile := CurrentOpenFiles[ FileIndex ];
2423	if not HelpFile.NotesLoaded then
2424	LoadNotes( HelpFile );
2425	end;
2426	NotesListBox.Focus;
2427	UpdateNotesDisplay;
2428	end;
2429	end;
2430
2431	End;
2432
2433	Procedure TMainForm.ViewRefreshMIOnClick (Sender: TObject);
2434	Begin
2435	RefreshWindows( Windows );
2436	End;
2437
2438	Procedure TMainForm.ViewNotesMIOnClick (Sender: TObject);
2439	Begin
2440	ShowLeftPanel := true;
2441	TabSet.TabIndex := piNotes;
2442	End;
2443
2444	Procedure TMainForm.ViewSearchMIOnClick (Sender: TObject);
2445	Begin
2446	DisplaySearch;
2447	End;
2448
2449	Procedure TMainForm.ShowTab( TabIndex: longint );
2450	Begin
2451	ShowLeftPanel := true;
2452	TabSet.TabIndex := TabIndex;
2453	NotebookOnPageChanged( self );// focus control etc
2454	End;
2455
2456	Procedure TMainForm.DisplaySearch;
2457	Begin
2458	ShowTab( piSearch );
2459	End;
2460
2461	Procedure TMainForm.ViewIndexMIOnClick (Sender: TObject);
2462	Begin
2463	DisplayIndex;
2464	End;
2465
2466	Procedure TMainForm.DisplayIndex;
2467	Begin
2468	ShowTab( piIndex );
2469	End;
2470
2471	Procedure TMainForm.ViewContentsMIOnClick (Sender: TObject);
2472	Begin
2473	DisplayContents;
2474	End;
2475
2476	Procedure TMainForm.DisplayContents;
2477	Begin
2478	ShowTab( piContents );
2479	End;
2480
2481	function TMainForm.OpenWindow( Topic: TTopic;
2482	Group: longint;
2483	Parent: THelpWindow;
2484	Rect: THelpWindowRect;
2485	FollowAutoLinks: boolean ): THelpWindow;
2486	var
2487	Window: THelpWindow;
2488	DisplayTopicRequired: boolean;
2489	begin
2490	Window := nil;
2491
2492	if ( Group <> DefaultGroupIndex ) and ( Parent = nil ) then
2493	begin
2494	// Normal window (not a split window) and a specific group is desired.
2495	// So see if we can find one with that group number
2496	Window := FindWindowFromGroup( Group, Windows );
2497
2498	end
2499	else
2500	begin
2501	// only reuse window if it has the same topic.
2502	Window := FindWindowFromTopic( Topic, Windows );
2503	end;
2504
2505	if Window = nil then
2506	begin
2507	DisplayingTopicWindow := true;
2508
2509	// not found, or want a new one
2510	Window := THelpWindow.Create( Parent = nil );
2511
2512	// add to parent
2513	if Parent = nil then
2514	begin
2515	Window.Parent := DisplayPanel;
2516	Windows.Add( Window );
2517	end
2518	else
2519	begin
2520	Window.Parent := Parent.View;
2521	Parent.ChildWindows.Add( Window );
2522	end;
2523
2524	Window.ParentHelpWindow := Parent;
2525
2526	DisplayingTopicWindow := false;
2527
2528	end
2529	else
2530	begin
2531	// reusing an existing window. Don't change parent
2532	end;
2533
2534	Window.Group := Group;
2535
2536	Window.View.PopupMenu := ViewPopupMenu;
2537
2538	Window.View.Images := Window.Images;
2539
2540	Window.View.OnClickLink := OnClickLink;
2541	Window.View.OnOverLink := OnOverLink;
2542	Window.View.OnNotOverLink := OnNotOverLink;
2543
2544	Window.OnClose := OnWindowClose;
2545	Window.OnCloseQuery := OnWindowAboutToClose;
2546	Window.OnDragOver := OnDragOverWindow;
2547	Window.OnDragDrop := OnDragDropToWindow;
2548	Window.OnFontChange := OnWindowFontChange;
2549	Window.OnTab := OnWindowTab;
2550	Window.OnBackTab := OnWindowBackTab;
2551
2552	// Use the contents rect by default...
2553	Topic.GetContentsWindowRect( Window.Rect );
2554	if Rect <> nil then
2555	begin
2556	// the rect is being overridden, so use it instead
2557	if Rect.Left <> -1 then
2558	Window.Rect.Left := Rect.Left;
2559	if Rect.Bottom <> -1 then
2560	Window.Rect.Bottom := Rect.Bottom;
2561	if Rect.Width <> -1 then
2562	Window.Rect.Width := Rect.Width;
2563	if Rect.Height <> -1 then
2564	Window.Rect.Height := Rect.Height;
2565	end;
2566
2567	if Window.ChildWindows.Count > 0 then
2568	begin
2569	// close existing child windows
2570	DestroyListObjects( Window.ChildWindows );
2571	Window.ChildWindows.Clear;
2572	Window.View.Show; // show the view again
2573	end;
2574
2575	DisplayTopicRequired := Window.Topic <> Topic;
2576	Window.Topic := Topic; // set this now so that SetLayout can log meaninful stuff
2577
2578	// Adjust the window size to it's specified Rect
2579	// Must do this before displaying child windows (DisplayTopicInWindow,
2580	// split window autolinks),
2581	// otherwise they will not size themselves correctly
2582	Window.SetLayout;
2583
2584	if DisplayTopicRequired then
2585	begin
2586	DisplayTopicInWindow( Window, FollowAutoLinks, false );
2587	end;
2588
2589	// Bring this window to the front
2590	Window.BringToFront;
2591
2592	Result := Window;
2593	end;
2594
2595	// Find an existing help window containing the given richtext view control
2596	Function TMainForm.FindWindowFromView( View: TRichTextView;
2597	WindowList: TList ): THelpWindow;
2598	var
2599	WindowIndex: longint;
2600	begin
2601	for WindowIndex:= 0 to WindowList.Count - 1 do
2602	begin
2603	Result:= WindowList[ WindowIndex ];
2604	if Result.View = View then
2605	exit;
2606	Result:= FindWindowFromView( View, Result.ChildWindows );
2607	if Result <> nil then
2608	exit;
2609	end;
2610	Result:= nil;
2611	end;
2612
2613	// Find an existing help window with the given group number (if any)
2614	Function TMainForm.FindWindowFromGroup( Group: longint; WindowList: TList ): THelpWindow;
2615	var
2616	WindowIndex: longint;
2617	begin
2618	for WindowIndex:= 0 to WindowList.Count - 1 do
2619	begin
2620	Result:= WindowList[ WindowIndex ];
2621	if Result.Group = Group then
2622	exit;
2623	Result:= FindWindowFromGroup( Group, Result.ChildWindows );
2624	if Result <> nil then
2625	exit;
2626	end;
2627	Result:= nil;
2628	end;
2629
2630	// Find an existing help window alreadying displaying the given topic
2631	Function TMainForm.FindWindowFromTopic( Topic: TTopic; WindowList: TList ): THelpWindow;
2632	var
2633	WindowIndex: longint;
2634	begin
2635	for WindowIndex:= 0 to WindowList.Count - 1 do
2636	begin
2637	Result:= WindowList[ WindowIndex ];
2638	if Result.Topic = Topic then
2639	exit;
2640	Result:= FindWindowFromTopic( Topic, Result.ChildWindows );
2641	if Result <> nil then
2642	exit;
2643	end;
2644	Result:= nil;
2645	end;
2646
2647	Procedure TMainForm.RefreshFontSubstitutions;
2648	var
2649	FileIndex: longint;
2650	HelpFile: THelpFile;
2651	begin
2652	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
2653	begin
2654	HelpFile := CurrentOpenFiles[ FileIndex ];
2655
2656	if Settings.FixedFontSubstitution then
2657	HelpFile.SetupFontSubstitutes( Settings.FixedFontSubstitutes )
2658	else
2659	HelpFile.SetupFontSubstitutes( '' );
2660	end;
2661	end;
2662
2663	// Redisplay topics in all windows
2664	Procedure TMainForm.RefreshWindows( WindowList: TList );
2665	var
2666	WindowIndex: longint;
2667	Window: THelpWindow;
2668	begin
2669	for WindowIndex:= 0 to WindowList.Count - 1 do
2670	begin
2671	Window:= WindowList[ WindowIndex ];
2672	DisplayTopicInWindow( Window,
2673	false, // don't follow links!
2674	true ); // keep position
2675	RefreshWindows( Window.ChildWindows );
2676	end;
2677	end;
2678
2679	Procedure TMainForm.WMFollowExternalLink( Var Msg: TMessage );
2680	var
2681	FilePath: string;
2682	Topic: TTopic;
2683	begin
2684	// try in same dir as source file
2685	FilePath := AddSlash( ExtractFilePath( g_ExternalLinkSourceFilename ) )
2686	+ g_ExternalLinkFilename;
2687
2688	if not StringsSame( FilePath, g_ExternalLinkSourceFilename ) then
2689	begin
2690	// different file - try and open it
2691	if not FileExists( FilePath ) then
2692	// not in same directory, find in help paths
2693	FilePath := FindHelpFile( g_ExternalLinkFilename );
2694
2695	if not FileExists( FilePath ) then
2696	begin
2697	DoErrorDlg( 'Link Error',
2698	'Cannot find linked file '
2699	+ g_ExternalLinkFilename );
2700	exit;
2701	end;
2702
2703	if g_ExternalLinkKeepCurrent then
2704	begin
2705	if not OpenAdditionalFile( FilePath, false ) then
2706	exit;
2707	end
2708	else
2709	begin
2710	if not OpenFile( FilePath, '', false ) then
2711	exit;
2712	end;
2713
2714	end;
2715
2716	if g_ExternalLinkTopic = '' then
2717	begin
2718	// specific topic not required.
2719	DisplaySelectedContentsTopic;
2720	exit;
2721	end;
2722
2723	Topic := FindTopicByGlobalName( g_ExternalLinkTopic );
2724	if Topic = nil then
2725	begin
2726	DoErrorDlg( 'Link Error',
2727	'Unable to find topic with global name '
2728	+ g_ExternalLinkTopic );
2729	exit;
2730	end;
2731
2732	DisplayTopic( Topic );
2733	end;
2734
2735	// We are following a link, specified as param1 in msg
2736	Procedure TMainForm.WMFollowLink( Var Msg: TMessage );
2737	var
2738	NewTopic: TTopic;
2739	Link: THelpLink;
2740	SourceWindow: THelpWindow;
2741	begin
2742	Link:= THelpLink( Msg.Param1 );
2743	SourceWindow:= THelpWindow( Msg.Param2 );
2744	NewTopic:= FindTopicForLink( Link );
2745
2746	// remove the link target info from status
2747	SetStatus( '' );
2748
2749	if NewTopic = nil then
2750	begin
2751	// Linked topic not found, this is an error... which kind?
2752
2753	if Link is THelpLinkByResourceID then
2754	begin
2755	// may happen if e.g. PM4.INF is loaded by itself,
2756	// and a link references a resource ID from e.g PM2.INF
2757	DoErrorDlg( InvalidLinkErrorTitle,
2758	InvalidResourceIDLinkErrorA
2759	+ IntToStr( THelpLinkByResourceID( Link ).ResourceID )
2760	+ InvalidResourceIDLinkErrorB );
2761	end
2762	else
2763	begin
2764	// should never happen, given valid help files
2765	DoErrorDlg( InvalidLinkErrorTitle,
2766	InvalidLinkError );
2767	end;
2768
2769	exit;
2770	end;
2771
2772	UpdateCurrentNavigatePoint;
2773
2774	FollowLink( Link, SourceWindow );
2775
2776	if NewTopic.ShowInContents then
2777	begin
2778	Navigating:= true;
2779	if ContentsOutline.SelectedNode = nil then
2780	ContentsOutline.SetSelectedObject( NewTopic )
2781	else if ContentsOutline.SelectedNode.Data <> NewTopic then
2782	ContentsOutline.SetSelectedObject( NewTopic );
2783	Navigating:= false;
2784	end;
2785	SaveNavigatePoint;
2786	EnableControls;
2787	ShowWindows;
2788
2789	end;
2790
2791	// Follow the given link from the given window.
2792	// ie. open the topic or footnote it points to
2793	Procedure TMainForm.FollowLink( Link: THelpLink;
2794	SourceWindow: THelpWindow );
2795	var
2796	LinkedTopic: TTopic;
2797	ParentWindow: THelpWindow;
2798	WindowedLink: TWindowedHelpLink;
2799	NewWindow: THelpWIndow;
2800	begin
2801	LinkedTopic := FindTopicForLink( Link );
2802
2803	if LinkedTopic = nil then
2804	begin
2805	exit;
2806	end;
2807
2808	if Link is TFootnoteHelpLink then
2809	begin
2810	NewWindow := OpenWindow( LinkedTopic,
2811	DefaultGroupIndex,
2812	nil, // no parent
2813	FootnoteRect,
2814	true );
2815	NewWindow.Caption := TFootnoteHelpLink( Link ).Title;
2816	exit;
2817	end;
2818
2819	WindowedLink := Link as TWindowedHelpLink;
2820
2821	ParentWindow:= nil;
2822	if WindowedLink.Split then
2823	ParentWindow:= SourceWindow;
2824
2825	if WindowedLink.ViewPort then
2826	// link always wants a new window
2827	OpenWindow( LinkedTopic,
2828	DefaultGroupIndex,
2829	ParentWindow,
2830	WindowedLink.Rect,
2831	true )
2832
2833	else if WindowedLink.GroupIndex <> DefaultGroupIndex then
2834	// link overrides group index
2835	OpenWindow( LinkedTopic,
2836	WindowedLink.GroupIndex,
2837	ParentWindow,
2838	WindowedLink.Rect,
2839	true )
2840	else
2841	// no special case
2842	OpenWindow( LinkedTopic,
2843	LinkedTopic.ContentsGroupIndex,
2844	ParentWindow,
2845	WindowedLink.Rect,
2846	true );
2847	end;
2848
2849	function TMainForm.ShowCodes: boolean;
2850	begin
2851	if DebugShowCodesMI = nil then
2852	result := false
2853	else
2854	result := DebugShowCodesMI.Checked;
2855	end;
2856
2857	function TMainForm.ShowWordIndices: boolean;
2858	begin
2859	if DebugShowWordSeparatorsMI = nil then
2860	result := false
2861	else
2862	result := DebugShowWordSeparatorsMI.Checked;
2863	end;
2864
2865	// Decode and display the topic for the given window.
2866	Procedure TMainForm.DisplayTopicInWindow( Window: THelpWindow;
2867	FollowAutoLinks: boolean;
2868	KeepPosition: boolean );
2869	var
2870	ImageIndices: TList;
2871	LinkIndex: longint;
2872	Link: THelpLink;
2873	WindowedHelpLink: TWindowedHelpLink;
2874	InternalHelpLink: TInternalHelpLink;
2875	HelpFile: THelpFile;
2876	LinkedTopic: TTopic;
2877	SourceTopic: TTopic;
2878	TopCharIndex: longint;
2879	i: longint;
2880	HighlightWordSequences: TList;
2881	FileIndex: longint;
2882	Begin
2883	LogEvent(LogDisplay, 'DisplayTopicInWindow');
2884
2885	SetWaitCursor;
2886
2887	TopCharIndex := Window.View.TopCharIndex;
2888
2889	Window.View.Hide;
2890	Window.View.Clear;
2891	ImageIndices := TList.Create;
2892
2893	HelpFile := TopicFile( Window.Topic );
2894
2895	if ( AllFilesWordSequences.Count > 0 ) // ie we have done a search...
2896	and ViewHighlightSearchWordsMI.Checked then
2897	begin
2898	FileIndex := CurrentOpenFiles.IndexOf( HelpFile );
2899	HighlightWordSequences := AllFilesWordSequences[ FileIndex ];
2900	end
2901	else
2902	begin
2903	HighlightWordSequences := nil;
2904	end;
2905	TopicText.Clear;
2906	Window.Topic.GetText( HighlightWordSequences,
2907	ShowCodes,
2908	ShowWordIndices,
2909	TopicText,
2910	ImageIndices,
2911	Window.Highlights );
2912
2913	HelpFile.GetImages( ImageIndices, Window.Images );
2914
2915	if not HelpFile.NotesLoaded then
2916	LoadNotes( HelpFile );
2917	InsertNotesIntoTopicText( Window.Topic, TopicText );
2918
2919	Window.View.AddText( TopicText.AsPChar );
2920
2921	if KeepPosition then
2922	Window.View.TopCharIndex := TopCharIndex;
2923
2924	Window.View.Show;
2925
2926	if not KeepPosition then
2927	if Window.Highlights.Count > 0 then
2928	// ensure first search match is visible
2929	Window.View.MakeCharVisible( longint( Window.Highlights[ 0 ] ) );
2930
2931	Window.Caption := Window.Topic.Title;
2932	Window.BringToFront;
2933	Window.View.Focus;
2934
2935	// Take a copy of the topic, because the window in question could be changing
2936	// due to recursion!
2937	SourceTopic := Window.Topic;
2938
2939	if FollowAutoLinks then
2940	begin
2941	i := 0;
2942	for LinkIndex:= 0 to SourceTopic.Links.Count - 1 do
2943	begin
2944	Link:= SourceTopic.Links[ LinkIndex ];
2945	if Link is TWindowedHelpLink then
2946	begin
2947	WindowedHelpLink := Link as TWindowedHelpLink;
2948	if WindowedHelpLink.Automatic then
2949	begin
2950	if Link is TInternalHelpLink then
2951	begin
2952	InternalHelpLink := TInternalHelpLink( Link );
2953	LinkedTopic :=
2954	THelpFile( InternalHelpLink.HelpFile ).
2955	Topics[ InternalHelpLink.TopicIndex ];
2956	if LinkedTopic.Index = SourceTopic.Index then
2957	// what the - ? The link wants to open the same topic again
2958	continue;
2959	end;
2960
2961	FollowLink( Link, Window );
2962	Window := Window;
2963
2964	inc( i );
2965	// Note 1: it is possible to crash here if
2966	// e.g. window1 auto-opens window2 which auto-opens window1 with a different topic..
2967	// I can't think of a nice, easy way to detect this
2968	//
2969	// Note 2: If there is no group number specified
2970	// (ie. group = default = 0 ) then behaves as if viewport is set:
2971	// always opens another window.
2972	end;
2973	end;
2974	end;
2975	end;
2976
2977	ClearWaitCursor;
2978
2979	ImageIndices.Destroy;
2980	End;
2981
2982	Procedure TMainForm.MainFormOnCloseQuery (Sender: TObject;
2983	Var CanClose: Boolean);
2984	Begin
2985	LogEvent(LogShutdown, '-------- Shutdown ----------');
2986
2987
2988	if OKToCloseFile then
2989	CloseFile
2990	else
2991	CanClose := false;
2992	End;
2993
2994	procedure TMainForm.DisplayTopic( Topic: TTopic );
2995	begin
2996	if Navigating then
2997	exit;
2998
2999	UpdateCurrentNavigatePoint;
3000
3001	CloseWindows;
3002
3003	CurrentTopic:= Topic;
3004
3005	OpenWindow( CurrentTopic,
3006	CurrentTopic.ContentsGroupIndex,
3007	nil,
3008	nil,
3009	true );
3010	SetStatus( OpenedTopicMsg
3011	+ IntToStr( Topic.Index ) );
3012
3013	Navigating:= true;
3014
3015	if ContentsOutline.SelectedNode = nil then
3016	ContentsOutline.SetSelectedObject( Topic )
3017	else if ContentsOutline.SelectedNode.Data <> Topic then
3018	ContentsOutline.SetSelectedObject( Topic );
3019
3020	SaveNavigatePoint;
3021
3022	Navigating:= false;
3023	// find in index...
3024	// find in search results...
3025
3026	EnableControls;
3027
3028	ShowWindows;
3029
3030	// if Windows.Count > 0 then
3031	// THelpWindow( Windows[ 0 ] ).View.Focus;
3032
3033	end;
3034
3035	// Make the all current help windows visible
3036	Procedure TMainForm.ShowWindows;
3037	begin
3038	ShowWindowList( Windows );
3039	end;
3040
3041	// Make the specified windows visible
3042	Procedure TMainForm.ShowWindowList( WindowList: TList );
3043	var
3044	i: integer;
3045	Window: THelpWindow;
3046	begin
3047	for i := 0 to WindowList.Count - 1 do
3048	begin
3049	Window:= WindowList[ i ];
3050	Window.Show;
3051	ShowWindowList( Window.ChildWindows );
3052	end;
3053	end;
3054
3055	// Global search -----------------------------------------------------------
3056
3057	Procedure TMainForm.GlobalSearchMIOnClick (Sender: TObject);
3058	begin
3059	DoGlobalSearch( '' );
3060	end;
3061
3062	Procedure TMainForm.DoGlobalSearch( const SearchText: string );
3063	Begin
3064	EnsureGlobalSearchFormLoaded;
3065
3066	GlobalSearchForm.ViewTopicCallback:= OnViewGlobalSearchTopic;
3067	GlobalSearchForm.Show;
3068	WinSetOwner( GlobalSearchForm.Frame.Handle, Frame.Handle );
3069
3070	if SearchText <> '' then
3071	begin
3072	GlobalSearchForm.SearchTextEdit.Text := SearchText;
3073	GlobalSearchForm.DoSearch;
3074	end;
3075	End;
3076
3077	Procedure TMainForm.OnViewGlobalSearchTopic( FileName: string;
3078	TopicIndex: longint );
3079	var
3080	HelpFile: THelpFile;
3081	begin
3082	HelpFile:= FindOpenHelpFile( FileName );
3083
3084	if HelpFile = nil then
3085	begin
3086	if OpenFile( Filename, '', false ) then
3087	begin
3088	HelpFile := CurrentOpenFiles[ 0 ];
3089	ClearHelpManager;
3090	end;
3091	end;
3092
3093	if HelpFile <> nil then
3094	if TopicIndex <> -1 then
3095	DisplayTopic( HelpFile.Topics[ TopicIndex ] );
3096
3097	end;
3098
3099	// Notes -----------------------------------------------------------
3100
3101	Procedure TMainForm.GotoNoteButtonOnClick (Sender: TObject);
3102	begin
3103	GotoCurrentNote;
3104	end;
3105
3106	Procedure TMainForm.EditNoteButtonOnClick (Sender: TObject);
3107	Begin
3108	if NotesListBox.ItemIndex = -1 then
3109	exit;
3110	EditNote( NotesListBox.ItemIndex );
3111	End;
3112
3113	Procedure TMainForm.NotesListBoxOnItemFocus (Sender: TObject; Index: LongInt);
3114	var
3115	Note: THelpNote;
3116	Begin
3117	Note:= NotesListBox.Items.Objects[ NotesListBox.ItemIndex ] as THelpNote;
3118	EnableNotesControls;
3119	End;
3120
3121	Procedure TMainForm.DeleteNoteButtonOnClick (Sender: TObject);
3122	Begin
3123	if NotesListBox.ItemIndex = -1 then
3124	exit;
3125	DeleteNote( NotesListBox.ItemIndex );
3126	End;
3127
3128	Procedure TMainForm.AddBookmarkMIOnClick (Sender: TObject);
3129	Begin
3130	AddBookmark;
3131	End;
3132
3133	Procedure TMainForm.AddNoteMIOnClick (Sender: TObject);
3134	Begin
3135	AddNote;
3136	End;
3137
3138	// -----------------------------------------------------------
3139
3140	Procedure TMainForm.FileCloseMIOnClick (Sender: TObject);
3141	Begin
3142	if not OKToCloseFile then
3143	exit;
3144
3145	CloseFile;
3146	End;
3147
3148	Procedure TMainForm.SetStatus( Text: String );
3149	begin
3150	StatusPanel.Caption:= Text;
3151	StatusPanel.Refresh;
3152	end;
3153
3154	Procedure TMainForm.ResetProgress;
3155	begin
3156	ProgressBar.Position:= 0;
3157	ProgressBar.Hide;
3158	end;
3159
3160	Procedure TMainForm.CoolBarOnSectionResize (HeaderControl: THeaderControl;
3161	section: THeaderSection);
3162	Begin
3163
3164	End;
3165
3166	Procedure TMainForm.CoolBarOnSectionClick (HeaderControl: THeaderControl;
3167	section: THeaderSection);
3168	Begin
3169	case Section.Index of
3170	ciOpen:
3171	FileOpen;
3172	ciBack:
3173	NavigateBack;
3174	ciForward:
3175	NavigateForward;
3176	ciPrint:
3177	PrintTopics;
3178	ciAddNote:
3179	AddNote;
3180	ciAddBookmark:
3181	AddBookmark;
3182	ciPrevious:
3183	NavigatePreviousInContents;
3184	ciNext:
3185	NavigateNextInContents;
3186	ciGlobalSearch:
3187	DoGlobalSearch( '' );
3188	end;
3189
3190	End;
3191
3192	// ---------------- Notes ----------------------
3193
3194	function TMainForm.FindOriginalNoteCharIndex( NoteCharIndex: longword;
3195	Topic: TTopic ): longword;
3196	var
3197	NoteIndex: longint;
3198	Note: THelpNote;
3199	begin
3200	Result := NoteCharIndex;
3201	for NoteIndex := 0 to Notes.Count - 1 do
3202	begin
3203	Note := Notes[ NoteIndex ];
3204	if Note.Topic = Topic then
3205	if Note.InsertPoint < NoteCharIndex then
3206	dec( Result, Note.InsertText.Length );
3207	end;
3208	end;
3209
3210	function TMainForm.FindActualNoteCharIndex( NoteCharIndex: longword;
3211	MaxNoteIndex: longword;
3212	Topic: TTopic ): longword;
3213	var
3214	NoteIndex: longint;
3215	Note: THelpNote;
3216	begin
3217	NoteIndex:= 0;
3218	Result:= NoteCharIndex;
3219	for NoteIndex:= 0 to MaxNoteIndex - 1 do
3220	begin
3221	Note:= Notes[ NoteIndex ];
3222	if Note.Topic = Topic then
3223	if Note.InsertPoint < NoteCharIndex then
3224	inc( Result, Note.InsertText.Length );
3225	end;
3226	end;
3227
3228	procedure TMainForm.RefreshNoteInsertInfo( NoteIndex: longword );
3229	var
3230	Note: THelpNote;
3231	begin
3232	Note:= Notes[ NoteIndex ];
3233
3234	if Note.Topic = nil then
3235	exit;
3236	with Note do
3237	begin
3238	InsertText.AssignString( '<color #'
3239	+ IntToHex( Settings.Colors[ NotesTextColorIndex ], 6 )
3240	+ '><link note'
3241	+ IntToStr( NoteIndex )
3242	+ '>' );
3243	InsertText.Add( Text );
3244	InsertText.AddString( '</color></link>' );
3245	end;
3246	end;
3247
3248	procedure TMainForm.ClearNotes;
3249	begin
3250	DestroyListObjects( Notes );
3251	Notes.Clear;
3252	end;
3253
3254	procedure TMainForm.AddNote;
3255	var
3256	Note: THelpNote;
3257	Window: THelpWindow;
3258	begin
3259	Window := GetActiveWindow;
3260	if Window = nil then
3261	begin
3262	DoErrorDlg( AddNoteTitle,
3263	AddNoteCursorError );
3264	exit;
3265	end;
3266
3267	if Window.View.CursorIndex = -1 then
3268	begin
3269	DoErrorDlg( AddNoteTitle,
3270	AddNoteCursorError );
3271	exit;
3272	end;
3273
3274	// check that the note position isn't
3275	// within a note already
3276	if Window.View.LinkFromIndex( Window.View.CursorIndex ) <> '' then
3277	begin
3278	DoErrorDlg( AddNoteTitle,
3279	NoteWithinNoteError );
3280	exit;
3281	end;
3282
3283	// ask for note text
3284	NoteForm.DeleteNoteButton.Enabled := false; // can't delete it while creating!
3285	NoteForm.Text.Clear;
3286	if NoteForm.ShowModal <> mrOK then
3287	exit;
3288
3289	// store note data
3290	Note := THelpNote.Create;
3291	Note.Text.Assign( NoteForm.Text );
3292
3293	// compensate for existing notes
3294	if Window.View.CursorIndex <> -1 then
3295	Note.InsertPoint := FindOriginalNoteCharIndex( Window.View.CursorIndex, Window.Topic )
3296	else
3297	Note.InsertPoint := 0;
3298
3299	Note.Topic := Window.Topic;
3300
3301	Notes.Add( Note );
3302
3303	// redisplay topic
3304	DisplayTopicInWindow( Window,
3305	false, // don't follow links!
3306	true ); // keep position
3307	Window.View.SelectionStart := FindActualNoteCharIndex( Note.InsertPoint,
3308	Notes.Count - 1,
3309	Window.Topic );
3310	UpdateNotesDisplay;
3311
3312	SaveNotes;
3313
3314	end;
3315
3316	procedure TMainForm.DeleteNote( NoteIndex: longint );
3317	var
3318	Note: THelpNote;
3319	begin
3320	Note := Notes[ NoteIndex ];
3321	Notes.Delete( NoteIndex );
3322
3323	RefreshWindows( Windows );
3324
3325	Note.Destroy;
3326
3327	UpdateNotesDisplay;
3328
3329	SaveNotes;
3330	end;
3331
3332	Procedure TMainForm.EditNote( NoteIndex: longint );
3333	var
3334	Note: THelpNote;
3335	begin
3336	Note:= Notes[ NoteIndex ];
3337
3338	NoteForm.Text.Assign( Note.Text );
3339
3340	NoteForm.DeleteNoteButton.Enabled:= true;
3341
3342	if NoteForm.ShowModal = mrCancel then
3343	exit;
3344
3345	if NoteForm.ModalResult = cmDiscard then
3346	begin
3347	DeleteNote( NoteIndex );
3348	exit;
3349	end;
3350
3351	Note.Text.Assign( NoteForm.Text );
3352
3353	RefreshWindows( Windows );
3354
3355	UpdateNotesDisplay;
3356
3357	SaveNotes;
3358	end;
3359
3360	Procedure TMainForm.GotoCurrentNote;
3361	var
3362	Note: THelpNote;
3363	Begin
3364	if NotesListBox.ItemIndex = -1 then
3365	exit;
3366	Note:= NotesListBox.Items.Objects[ NotesListBox.ItemIndex ] as THelpNote;
3367	DisplayTopic( Note.Topic );
3368	End;
3369
3370	// ---------------- Bookmarks ----------------------
3371
3372	procedure TMainForm.OnBookmarksChanged( Sender: TObject );
3373	begin
3374	BuildBookmarksMenu;
3375	UpdateBookmarksForm;
3376	SaveBookmarks;
3377	end;
3378
3379	procedure TMainForm.AddBookmark;
3380	var
3381	Bookmark: TBookmark;
3382	begin
3383	if Windows.Count = 0 then
3384	exit;
3385
3386	Bookmark := TBookmark.Create;
3387	SaveWindows( Windows, Bookmark.Windows, nil );
3388
3389	if ContentsOutline.SelectedNode <> nil then
3390	begin
3391	Bookmark.ContentsTopic:=
3392	ContentsOutline.SelectedNode.Data as TTopic;
3393	Bookmark.Name := Bookmark.ContentsTopic.Title;
3394	end
3395	else
3396	begin
3397	Bookmark.ContentsTopic:= nil;
3398	// Bookmark.Name := THelpWindow( Windows[ 0 ] ).Title;
3399	end;
3400
3401	Bookmarks.Add( Bookmark );
3402	OnBookmarksChanged( self );
3403	end;
3404
3405	Procedure TMainForm.BookmarksMenuItemClick( Sender: TObject );
3406	var
3407	Tag: longint;
3408	MenuItem: TMenuItem;
3409	Bookmark: TBookmark;
3410	begin
3411	MenuItem:= Sender as TMenuItem;
3412	Tag:= MenuItem.Tag;
3413	Bookmark := Bookmarks[ Tag ];
3414
3415	NavigateToBookmark( Bookmark );
3416	end;
3417
3418	Procedure TMainForm.NavigateToBookmark( Bookmark: TBookmark );
3419	Begin
3420	UpdateCurrentNavigatePoint;
3421	NavigateToPoint( Bookmark );
3422	SaveNavigatePoint;
3423	End;
3424
3425	Procedure TMainForm.BuildBookmarksMenu;
3426	var
3427	i: integer;
3428	Bookmark: TBookmark;
3429	MenuItem: TMenuItem;
3430	begin
3431	DestroyListObjects( BookmarksMenuItems );
3432	BookmarksMenuItems.Clear;
3433
3434	if Bookmarks.Count > 0 then
3435	begin
3436	MenuItem:= TMenuItem.Create( self );
3437	MenuItem.Caption:= '-';
3438	BookmarksMenu.Add( MenuItem );
3439	BookmarksMenuItems.Add( MenuItem );
3440	end;
3441
3442	for i:= 0 to Bookmarks.Count -1 do
3443	begin
3444	Bookmark := Bookmarks[ i ];
3445	MenuItem:= TMenuItem.Create( self );
3446
3447	MenuItem.Caption:= Bookmark.Name;
3448	MenuItem.OnClick:= BookmarksMenuItemClick;
3449	MenuItem.Tag:= i;
3450	BookmarksMenu.Add( MenuItem );
3451	BookmarksMenuItems.Add( MenuItem );
3452	end;
3453	end;
3454
3455	Procedure TMainForm.UpdateBookmarksForm;
3456	begin
3457	if Assigned( BookmarksForm ) then
3458	BookmarksForm.RefreshList;
3459	end;
3460
3461	Procedure TMainForm.ClearBookmarks;
3462	begin
3463	ClearListAndObjects( Bookmarks );
3464	BuildBookmarksMenu;
3465	if Assigned( BookmarksForm ) then
3466	begin
3467	UpdateBookmarksForm; // clear bookmarks for next show
3468	BookmarksForm.Hide;
3469	end;
3470
3471	end;
3472
3473	procedure TMainForm.LoadBookmarks( HelpFile: THelpFile );
3474	var
3475	Bookmark: TBookmark;
3476	BookmarksFile: TextFile;
3477	BookmarksFileName: string;
3478	S: string;
3479	begin
3480	LogEvent(LogSettings, 'Load bookmarks for ' + HelpFile.Filename);
3481
3482	BookmarksFileName:= ChangeFileExt( HelpFile.FileName, '.bmk' );
3483
3484	if not FileExists( BookmarksFileName ) then
3485	exit;
3486
3487	FileMode := fmInput;
3488	AssignFile( BookmarksFile, BookmarksFileName );
3489	try
3490	Reset( BookmarksFile );
3491	try
3492	while not Eof( BookmarksFile ) do
3493	begin
3494	ReadLn( BookmarksFile, s );
3495	if trim( Uppercase( s ) ) = '[BOOKMARK]' then
3496	begin
3497	Bookmark:= TBookmark.Load( BookmarksFile, HelpFile );
3498	Bookmarks.Add( Bookmark );
3499	end;
3500	end;
3501	finally
3502	System.Close( BookmarksFile );
3503	end;
3504	except
3505	on e: exception do
3506	DoErrorDlg( LoadBookmarksTitle,
3507	LoadBookmarksError
3508	+ e.message );
3509	end;
3510	end;
3511
3512	procedure TMainForm.SaveBookmarks;
3513	var
3514	FileIndex: integer;
3515	HelpFile: THelpFile;
3516	begin
3517	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
3518	begin
3519	HelpFile := CurrentOpenFiles[ FileIndex ];
3520	SaveBookmarksForFile( HelpFile );
3521	end;
3522	end;
3523
3524	procedure TMainForm.SaveNotes;
3525	var
3526	FileIndex: integer;
3527	HelpFile: THelpFile;
3528	begin
3529	LogEvent(LogSettings, 'Save notes');
3530
3531	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
3532	begin
3533	HelpFile := CurrentOpenFiles[ FileIndex ];
3534	SaveNotesForFile( HelpFile );
3535	end;
3536	end;
3537
3538	procedure TMainForm.SaveBookmarksForFile( HelpFile: THelpFile );
3539	var
3540	i: integer;
3541	Bookmark: TBookmark;
3542	BookmarksFile: TextFile;
3543	BookmarksFileName: string;
3544	BookmarkCount: integer;
3545	begin
3546	LogEvent(LogSettings, 'Save bookmarks for ' + HelpFile.Filename);
3547
3548	BookmarksFileName:= ChangeFileExt( HelpFile.FileName, '.bmk' );
3549
3550	BookmarkCount:= 0;
3551	for i:= 0 to Bookmarks.Count - 1 do
3552	begin
3553	Bookmark := Bookmarks[ i ];
3554
3555	if Bookmark.ContentsTopic.HelpFile = HelpFile then
3556	inc( BookmarkCount );
3557	end;
3558
3559	if BookmarkCount = 0 then
3560	begin
3561	if FileExists( BookmarksFileName ) then
3562	DeleteFile( BookmarksFileName );
3563	exit;
3564	end;
3565
3566	AssignFile( BookmarksFile, BookmarksFileName );
3567	try
3568	Rewrite( BookmarksFile );
3569	try
3570	for i := 0 to Bookmarks.Count - 1 do
3571	begin
3572	Bookmark:= Bookmarks[ i ];
3573	if Bookmark.ContentsTopic.HelpFile = HelpFile then
3574	begin
3575	WriteLn( BookmarksFile, '[Bookmark]' );
3576	Bookmark.Save( BookmarksFile );
3577	end;
3578	end;
3579	finally
3580	System.Close( BookmarksFile );
3581	end;
3582	except
3583	on e: exception do
3584	DoErrorDlg( SaveBookmarksTitle,
3585	SaveBookmarksError
3586	+ e.message );
3587	end;
3588	end;
3589
3590	// Reads colors back from controls, in case they have changed by
3591	// drag and drop
3592	Procedure TMainForm.GetColors;
3593	begin
3594	with Settings do
3595	begin
3596	Colors[ ContentsBackgroundColorIndex ] := ContentsOutline.Color;
3597	Colors[ ContentsTextColorIndex ] := ContentsOutline.PenColor;
3598	Colors[ IndexBackgroundColorIndex ] := IndexListBox.Color;
3599	Colors[ IndexTextColorIndex ] := IndexListBox.PenColor;
3600	Colors[ SearchBackgroundColorIndex ] := SearchResultsListBox.Color;
3601	Colors[ SearchTextColorIndex ] := SearchResultsListBox.PenColor;
3602	Colors[ NotesListBackgroundColorIndex ] := NotesListBox.Color;
3603	Colors[ NotesListTextColorIndex ] := NotesListBox.PenColor;
3604	end;
3605	end;
3606
3607	Procedure TMainForm.MainFormOnDestroy (Sender: TObject);
3608	Begin
3609	LogEvent(LogShutdown, 'MainFormOnDestroy');
3610
3611	LogEvent(LogSettings, 'Write window position');
3612	WriteWindowPos( self );
3613
3614	LogEvent(LogSettings, 'Update colors');
3615	GetColors;
3616
3617	LogEvent(LogSettings, 'Save settings');
3618	SaveSettings;
3619	LogEvent(LogSettings, 'Save settings done');
3620
3621	// else- don't save position/size if doing own help
3622
3623	TopicText.Destroy;
3624
3625	LogEvent(LogShutdown, 'Destroy MRU menu items');
3626	MRUMenuItems.Destroy;
3627
3628	LogEvent(LogShutdown, 'Destroy navigate to menu items');
3629	NavigateToMenuItems.Destroy;
3630
3631	LogEvent(LogShutdown, 'Destroy pagehistory');
3632	PageHistory.Destroy;
3633
3634	LogEvent(LogShutdown, 'Clear/destroy notes');
3635	ClearNotes;
3636	Notes.Destroy;
3637
3638	LogEvent(LogShutdown, 'Clear/destroy bookmarks');
3639	ClearBookmarks;
3640	Bookmarks.Destroy;
3641
3642	LogEvent(LogShutdown, 'Destroy bookmark menu items');
3643	BookmarksMenuItems.Destroy;
3644
3645	LogEvent(LogShutdown, 'Destroy files/index/windows');
3646	CurrentOpenFiles.Destroy;
3647	DisplayedIndex.Destroy;
3648	Windows.Destroy;
3649
3650	// tell help manager(s) we are stopping.
3651	PostHelpManagerMessage( NHM_FORGET_VIEWER, 0, 0 );
3652
3653	HelpManagerWindows.Destroy;
3654
3655	DestroyListObjects( Settings.MRUList );
3656	Settings.MRUList.Destroy;
3657
3658	// TODO rbri maybe we have to do this
3659	// Parameters.FilenamesParam.Destroy;
3660
3661	if g_CurrentLanguageFile <> nil then
3662	g_CurrentLanguageFile.Destroy;
3663
3664	LogEvent(LogShutdown, 'Close global filelist');
3665	GlobalFilelist.Destroy;
3666
3667	LogEvent(LogShutdown, 'Close shared memory');
3668	SharedMemory.Destroy;
3669
3670	AllFilesWordSequences.Destroy;
3671
3672	LogEvent(LogShutdown, 'MainFormOnDestroy done');
3673	End;
3674
3675	Procedure TMainForm.MainFormOnSetupShow (Sender: TObject);
3676	Begin
3677	LogEvent(LogSettings, 'OnSetupShow');
3678	TabSet.TabIndex := 0;
3679	Notebook.PageIndex := 0;
3680	End;
3681
3682	Procedure TMainForm.OnException( Sender: TObject;
3683	E: Exception );
3684	var
3685	TheText : string;
3686	F: TextFile;
3687	i: integer;
3688	HelpFile: THelpFile;
3689	LogFilename: string;
3690
3691	begin
3692	LogFilename := GetLogFilesDir + CrashLogFileName;
3693
3694	LogException( E,
3695	LogFileName,
3696	'NewView',
3697	GetAppVersion,
3698	F );
3699
3700	if CurrentOpenFiles <> nil then
3701	begin
3702	WriteLn( F, 'Loaded files ('
3703	+ IntToStr( CurrentOpenFiles.Count )
3704	+ '):' );
3705	try
3706	for i := 0 to CurrentOpenFiles.Count - 1 do
3707	begin
3708	HelpFile := CurrentOpenFiles[ i ];
3709	WriteLn( F, HelpFile.Filename );
3710	end;
3711	except
3712	end;
3713	end;
3714	try
3715	if CurrentTopic <> nil then
3716	WriteLn( F, 'Last major topic index: '
3717	+ IntToStr( CurrentTopic.Index ) );
3718	except
3719	// ignore exceptions if there isn't a valid current topic
3720	end;
3721	if Windows <> nil then
3722	begin
3723	WriteLn( F, 'Top-level open windows: '
3724	+ IntToStr( Windows.Count ) );
3725	end;
3726
3727	System.Close( F );
3728
3729	TheText := ApplicationErrorA + EndLine
3730	+ EndLine
3731	+ E.Message + EndLine
3732	+ ApplicationErrorB
3733	+ LogFilename
3734	+ ')' + EndLine
3735	+ EndLine
3736	+ ApplicationErrorC
3737	+ EndLine;
3738
3739	if DoYesNoDlg( ApplicationErrorTitle,
3740	TheText ) then
3741	begin
3742	// exit a bit more nicely - remove ourselves from the global filelist.
3743	GlobalFilelist.RemoveWindowFiles( Frame.Handle );
3744	Application.Terminate;
3745	end;
3746	end;
3747
3748	// give our main window a unique class name we can find
3749	procedure TMainForm.GetClassData(var ClassData: TClassData);
3750	Begin
3751	inherited GetClassData( ClassData );
3752	ClassData.ClassName := MAIN_WINDOW_CLASS_NAME;
3753	End;
3754
3755	// Position the window offset from existing top help window (if any)
3756	Procedure TMainForm.PositionWindow;
3757	var
3758	hTopWindow: HWND;
3759	TopHelpWindowPos: SWP;
3760	Offset: longint;
3761	Begin
3762	hTopWindow := FindTopFormWindow( MAIN_WINDOW_CLASS_NAME );
3763
3764	if hTopWindow <> NULLHANDLE then
3765	begin
3766	// found an existing help window, find it's location
3767	if WinQueryWindowPos(
3768	hTopWindow,
3769	TopHelpWindowPos ) then
3770	begin
3771	if ( TopHelpWindowPos.FL and ( SWP_MINIMIZE or SWP_MINIMIZE ) ) > 0 then
3772	Begin
3773	// window is maximized or minimised, so get the restore position from window USHORTs
3774	TopHelpWindowPos.x := WinQueryWindowUShort( hTopWindow, QWS_XRESTORE );
3775	TopHelpWindowPos.Y := WinQueryWindowUShort( hTopWindow, QWS_YRESTORE );
3776	end;
3777
3778	// offset new window by height of title bar + border
3779	Offset := Screen.SystemMetrics( smCyTitleBar )
3780	+ Screen.SystemMetrics( smCySizeBorder );
3781	Left := TopHelpWindowPos.x + Offset;
3782	Bottom := TopHelpWindowPos.y - Offset;
3783
3784	// I guess I am leaving width/height out for compatibility...?
3785	end;
3786	end;
3787	end;
3788
3789	Procedure TMainForm.OnHelp( context: THelpContext;
3790	var Result: Boolean );
3791	begin
3792	if OwnHelpMode then
3793	begin
3794	// we are viewing the help file now - display our own help!
3795	PostMsg( Handle, NHM_TOPIC_BY_RESOURCE_ID, context, 0 );
3796	exit;
3797	end;
3798
3799	Application.HelpContext( context );
3800	end;
3801
3802	Procedure TMainForm.MainFormOnCreate (Sender: TObject);
3803	var
3804	tmpCmdLine: String;
3805	Begin
3806	LogEvent(LogStartup, 'MainFormOnCreate');
3807
3808	StartingUp := true;
3809
3810	Application.HelpFile := GetOwnHelpFilename; // OWN_HELP_MARKER;
3811	Application.OnHelp := OnHelp;
3812
3813	SharedMemory := AccessSharedMemory;
3814	GlobalFilelist := TGlobalFilelist.Create;
3815
3816	// parse parameters into Parameters object
3817	tmpCmdLine := nativeOS2GetCmdLineParameter;
3818	CmdLineParameters := TCmdLineParameters.Create;
3819	CmdLineParameters.parseCmdLine(tmpCmdLine);
3820
3821	RegisterForLanguages( OnLanguageEvent );
3822
3823	// if debug is not enabled, get rid of the debug menu and separator.
3824	if GetEnv( 'NEWVIEW_DEBUG' ) = '' then
3825	begin
3826	ToolsDebugSep.Destroy;
3827	ToolsDebugMenu.Destroy;
3828	DebugShowCodesMI := nil;
3829	DebugShowWordSeparatorsMI := nil;
3830	end;
3831
3832	// set up globals for Exec
3833	ExecViaSession := true;
3834	AsynchExec := true;
3835
3836	// set up form icons
3837	Forms.FormIconResourceID := 1;
3838
3839	Application.OnException := OnException;
3840
3841	ContentsOutline.SmoothScroll := false;
3842
3843	LogEvent(LogStartup, 'Choosing default font: Trying WarpSans');
3844
3845	Font := GetNiceDefaultFont;
3846
3847	// Set the menu fonts, because they remember their own specific one
3848	MainMenu.Font := Screen.MenuFont;
3849	ViewPopupMenu.Font := Screen.MenuFont;
3850
3851	// NOTE: SPCC will copy this font to TApplication
3852	// in TApplication.Run
3853
3854	LogEvent(LogStartup, 'Starting NewView: MainFormOnCreate');
3855
3856	Application.OnHint := OnHint;
3857
3858	StartMem := MemAvailBytes;
3859
3860	DisplayedIndex := TStringList.Create;
3861
3862	HelpManagerWindows := TList.Create;
3863
3864	AllFilesWordSequences := TList.Create;
3865
3866	CurrentOpenFiles := TList.Create;
3867	Notes := TList.Create;
3868	Bookmarks := TList.Create;
3869	BookmarksMenuItems := TList.Create;
3870	Windows := TList.Create;
3871
3872	TopicText := TAString.Create;
3873
3874	Navigating := false;
3875	InIndexSearch := false;
3876	SettingFont := false;
3877
3878	PageHistory := TStringList.Create;
3879	CurrentHistoryIndex := -1;
3880
3881	Settings.MRUList := TList.Create;
3882
3883	MRUMenuItems := TList.Create;
3884	NavigateToMenuItems := TList.Create;
3885
3886	LogEvent(LogSettings, 'Loading settings');
3887
3888	LoadSettings;
3889	SetShowLeftPanel( ShowLeftPanel ); // update menu
3890
3891	// load default strings
3892	LogEvent(LogSettings, 'Loading language');
3893
3894	if CmdLineParameters.getLanguage <> '' then
3895	LoadAutoLanguage( 'newview', CmdLineParameters.getLanguage )
3896	else
3897	LoadDefaultLanguage( 'newview' );
3898
3899	LogEvent(LogSettings, 'Applying settings');
3900	ApplySettings;
3901
3902	// default position is centered..
3903	LogEvent(LogSettings, 'Set default position');
3904	if Width > Screen.Width then
3905	Width := Screen.Width;
3906	if Height > Screen.Height then
3907	Height := Screen.Height;
3908	Left := ( Screen.Width - Width ) div 2;
3909	Bottom := ( Screen.Height - Height ) div 2;
3910
3911	LogEvent(LogSettings, 'ReadWindowPos');
3912	ReadWindowPos( Self );
3913
3914	PositionWindow;
3915
3916	LogEvent(LogSettings, 'Creating MRU list');
3917
3918	CreateMRUMenuItems;
3919
3920	CloseFile;
3921
3922	LogEvent(LogStartup, 'OnCreate done');
3923
3924	if CmdLineParameters.getWindowPositionFlag then
3925	begin
3926	SmartSetWindowPos( self,
3927	CmdLineParameters.getWindowPosition.Left,
3928	CmdLineParameters.getWindowPosition.Bottom,
3929	CmdLineParameters.getWindowPosition.Width,
3930	CmdLineParameters.getWindowPosition.Height,
3931	false );
3932	end;
3933
3934	LogEvent(LogStartup, 'MainFormOnCreate Done');
3935	End;
3936
3937	Procedure TMainForm.ApplySettings;
3938	var
3939	ToolbarBitmap: TBitmap;
3940	begin
3941	ContentsOutline.Color:= Settings.Colors[ ContentsBackgroundColorIndex ];
3942	ContentsOutline.PenColor:= Settings.Colors[ ContentsTextColorIndex ];
3943	ContentsOutline.TreeLineColor:= Settings.Colors[ ContentsLinesColorIndex ];
3944	IndexListBox.Color:= Settings.Colors[ IndexBackgroundColorIndex ];
3945	IndexListBox.PenColor:= Settings.Colors[ IndexTextColorIndex ];
3946	SearchResultsListBox.Color:= Settings.Colors[ SearchBackgroundColorIndex ];
3947	SearchResultsListBox.PenColor:= Settings.Colors[ SearchTextColorIndex ];
3948	NotesListBox.Color:= Settings.Colors[ NotesListBackgroundColorIndex ];
3949	NotesListBox.PenColor:= Settings.Colors[ NotesListTextColorIndex ];
3950
3951	SettingFont := true;
3952	Notebook.ParentFont := true;
3953	ContentsOutline.ParentFont := true;
3954	IndexListBox.ParentFont := true;
3955	SearchResultsListBox.ParentFont := true;
3956	NotesListBox.ParentFont := true;
3957	TabSet.ParentFont := true;
3958	Coolbar.ParentFont := true;
3959	if Settings.Fonts[ ApplicationFontIndex ] <> nil then
3960	Font := Settings.Fonts[ ApplicationFontIndex ]
3961	else
3962	Font := GetNiceDefaultFont;
3963	SettingFont := false;
3964
3965	Coolbar.BackgroundBitmap := nil;
3966	if FileExists( Settings.ToolbarBackgroundImageFilename ) then
3967	begin
3968	ToolbarBitmap:= TBitmap.Create;
3969	try
3970	ToolbarBitmap.LoadFromFIle( Settings.ToolbarBackgroundImageFilename );
3971	Coolbar.BackgroundBitmap := ToolbarBitmap;
3972	except
3973	end;
3974	ToolbarBitmap.Destroy;
3975	end;
3976
3977	CoolBar.ShowImages := Settings.ToolbarStyle in [ tsImages, tsImagesAndText ];
3978	CoolBar.ShowText := Settings.ToolbarStyle in [ tsText, tsImagesAndText ];
3979
3980	CoolBar.SetMinConstButtonWidth;
3981
3982	DisplayPanel.Color := Settings.Colors[ TopicBackgroundColorIndex ];
3983
3984	SetupViews( Windows );
3985	end;
3986
3987	// Setup the rich text views in the specified windows (e.g for changing global settings)
3988	Procedure TMainForm.SetupViews( WindowList: TList );
3989	var
3990	WindowIndex: longint;
3991	Window: THelpWindow;
3992	begin
3993	for WindowIndex := 0 to WindowList.Count - 1 do
3994	begin
3995	Window := WindowList[ WindowIndex ];
3996	Window.SetupRTView;
3997	SetupViews( Window.ChildWindows );
3998	end;
3999	end;
4000
4001	Procedure TMainForm.PostHelpManagerMessage( MessageType: ULONG;
4002	Param1: long;
4003	Param2: long );
4004	var
4005	i: longint;
4006	begin
4007	for i := 0 to HelpManagerWindows.Count - 1 do
4008	PostMsg( HWND( HelpManagerWindows[ i ] ),
4009	MessageType,
4010	Param1,
4011	Param2 );
4012	end;
4013
4014	Procedure TMainForm.ClearHelpManager;
4015	Begin
4016	if not CmdLineParameters.getHelpManagerFlag then
4017	exit;
4018
4019	// tell the help manager(s) we are no longer playing with them
4020	PostHelpManagerMessage( NHM_FORGET_VIEWER, 0, 0 );
4021
4022	CmdLineParameters.setHelpManagerFlag(false);
4023
4024	HelpManagerWindows.Clear;
4025	End;
4026
4027	Procedure TMainForm.MainFormOnShow (Sender: TObject);
4028	Begin
4029	EnableCallstackLogging( true );
4030
4031	LogEvent(LogStartup, 'MainFormOnShow');
4032
4033	if CmdLineParameters.getOwnerWindow <> NULLHANDLE then
4034	begin
4035	LogEvent(LogStartup, 'Setting owner: '
4036	+ IntToStr( CmdLineParameters.getOwnerWindow));
4037	WinSetOwner( Frame.Handle,
4038	CmdLineParameters.getOwnerWindow );
4039
4040	end;
4041
4042	if CmdLineParameters.getHelpManagerFlag then
4043	begin
4044	LogEvent(LogStartup, ' Help Manager Title: '
4045	+ StrNPas( pSharedStruct ^. Title,
4046	SHARED_STRUCT_TITLE_SIZE ) );
4047	HelpManagerVersion := StrNPas( pSharedStruct ^. Version,
4048	SHARED_STRUCT_VERSION_SIZE );
4049	LogEvent(LogStartup, ' Help Manager Version: ' + HelpManagerVersion );
4050
4051	end;
4052
4053	CoolBar.SetMinConstButtonWidth;
4054
4055	LogEvent(LogStartup, 'Post WM_OPENED');
4056
4057	ResetProgress;
4058
4059	AddShortcut( kbF11, kbF11 ); // prev in contents
4060	AddShortcut( kbF12, kbF12 ); // next in contents
4061	AddShortcut( kbF7, kbF7 ); // back
4062	AddShortcut( kbF8, kbF8 ); // forward
4063	AddShortcut( kbCtrlCLeft, kbCtrlCLeft ); // back
4064
4065	PostMsg( Handle, WM_OPENED, 0, 0 );
4066	End;
4067
4068	Procedure TMainForm.DisplaySelectedContentsTopic;
4069	var
4070	Topic: TTopic;
4071	Begin
4072	if ContentsOutline.SelectedNode = nil then
4073	exit;
4074	Topic := ContentsOutline.SelectedNode.Data as TTopic;
4075	DisplayTopic( Topic );
4076	End;
4077
4078	// Check that the HELP and BOOKSHELF environment variables
4079	// are defined (as they should be on any working OS/2 system).
4080	// Show a warning message if not.
4081	Procedure TMainForm.CheckEnvironmentVars;
4082	var
4083	HelpOK: boolean;
4084	BookshelfOK: boolean;
4085	ErrorText: string;
4086	begin
4087	HelpOK := GetEnv( HelpPathEnvironmentVar ) <> '';
4088	BookshelfOK := GetEnv( BookshelfEnvironmentVar ) <> '';
4089	if HelpOK and BookshelfOK then
4090	// all ok.
4091	exit;
4092
4093	// One or both missing
4094
4095	ErrorText := '';
4096	if not BookshelfOK then
4097	ErrorText := ErrorText
4098	+ EnvironmentVarUndefined
4099	+ BookshelfEnvironmentVar
4100	+ EndLine;
4101
4102	if not HelpOK then
4103	ErrorText := ErrorText
4104	+ EnvironmentVarUndefined
4105	+ HelpPathEnvironmentVar
4106	+ EndLine;
4107
4108	DoWarningDlg( EnvironmentVarErrorTitle,
4109	EnvironmentVarError
4110	+ EndLine
4111	+ EndLine
4112	+ ErrorText );
4113
4114	end;
4115
4116	Procedure LoadSupportDLL;
4117	begin
4118	try
4119	LoadDLLFunction( 'newview.dll',
4120	'LZWDECOMPRESSBLOCK',
4121	hNewViewDLL,
4122	pointer( LZWDecompressBlock ) );
4123	except
4124	on E: Exception do
4125	begin
4126	DoErrorDlg( 'DLL Error',
4127	E.Message );
4128	LZWDecompressBlock := nil;
4129	end;
4130	end;
4131	end;
4132
4133	Procedure TMainForm.WMOpened( Var Msg: TMessage );
4134	var
4135	Filenames: TStringList;
4136	M1: longword;
4137	OpenFirstTopic: boolean;
4138	begin
4139	if Application.HelpFile = '' then
4140	DoErrorDlg( 'NewView Help', 'NewView help file not found' );
4141
4142	LoadSupportDLL;
4143
4144	LogEvent(LogStartup, 'WMOpened: SetLayout');
4145
4146	if CmdLineParameters.getHelpManagerFlag then
4147	FShowLeftPanel := Settings.ShowLeftPanel_Help
4148	else
4149	FShowLeftPanel := Settings.ShowLeftPanel_Standalone;
4150
4151	SetLayout;
4152
4153	// ProfileEvent( 'Apply settings' );
4154	// ApplySettings;
4155
4156	LogEvent(LogStartup, 'Enable controls');
4157	EnableControls;
4158
4159	// ProfileEvent( 'ReadWindowPos' );
4160	// ReadWindowPos( Self );
4161
4162	LogEvent(LogStartup, 'Finish paint');
4163	Update;
4164
4165	if not CmdLineParameters.getHelpManagerFlag then
4166	begin
4167	LogEvent(LogStartup, 'Check environment vars');
4168	CheckEnvironmentVars;
4169
4170	if CmdLineParameters.getShowUsageFlag then
4171	begin
4172	LogEvent(LogStartup, 'Showing usage');
4173	ShowUsage;
4174	end;
4175	end;
4176
4177	HelpManagerWindows.Add( pointer( CmdLineParameters.getHelpManagerWindow ) );
4178
4179	if CmdLineParameters.getInterpretedFileNames <> '' then
4180	begin
4181	// open specified files
4182	Filenames := TStringList.Create;
4183
4184	// TODO use StrExtractStrings
4185	StringToList(cmdLineParameters.getInterpretedFileNames, Filenames, '+' );
4186
4187	LogEvent(LogStartup, 'Call OpenFiles');
4188
4189	OpenFirstTopic := true;
4190
4191	if ( CmdLineParameters.getInterpretedSearchText <> '' )
4192	OR CmdLineParameters.getSearchFlag
4193	OR CmdLineParameters.getHelpManagerFlag
4194	then
4195	// if we're going to search, don't open first topic
4196	// don't open first topic if we're online help
4197	// in case we are wanting to show a specific topic
4198	// - saves time/flicker
4199	OpenFirstTopic := false;
4200
4201	OpenFiles( Filenames,
4202	CmdLineParameters.getWindowTitle,
4203	OpenFirstTopic );
4204
4205	Filenames.Destroy;
4206
4207	if not CmdLineParameters.getSearchFlag
4208	and not CmdLineParameters.getGlobalSearchFlag
4209	and (CmdLineParameters.getInterpretedSearchText <> '') then
4210	begin
4211	// search in contents only!
4212	LogEvent(LogStartup, 'Do startup topic search');
4213
4214	StartupTopicSearch( CmdLineParameters.getInterpretedSearchText );
4215	end
4216	else if CmdLineParameters.getSearchFlag then
4217	begin
4218	// search in specified files
4219	LogEvent(LogStartup, 'Do search for topic');
4220	DisplaySearch;
4221
4222	SearchFor( CmdLineParameters.getInterpretedSearchText );
4223	end;
4224	end;
4225
4226	if NOT CmdLineParameters.getShowUsageFlag
4227	AND CmdLineParameters.getGlobalSearchFlag then
4228	begin
4229	// Global search
4230	LogEvent(LogStartup, 'Do global search: ' + CmdLineParameters.getInterpretedSearchText);
4231	DoGlobalSearch( CmdLineParameters.getInterpretedSearchText );
4232	end;
4233
4234	LogEvent(LogStartup, 'Open finished');
4235
4236	if CmdLineParameters.getHelpManagerFlag then
4237	begin
4238	// Tell helpmanager(s) our window handle
4239	PostHelpManagerMessage( NHM_VIEWER_READY,
4240	Handle,
4241	0 );
4242	end;
4243
4244	M1:= MemAvail;
4245
4246	StartingUp := false;
4247
4248	LogEvent(LogStartup, 'RUN PROGRAM');
4249	end;
4250
4251	Procedure TMainForm.MainFormOnResize (Sender: TObject);
4252	Begin
4253	if not Visible then
4254	exit;
4255	if Handle = 0 then
4256	exit;
4257
4258	SetLayout;
4259
4260	End;
4261
4262	Function TMainForm.GetShowLeftPanel: boolean;
4263	begin
4264	Result := FShowLeftPanel;
4265	end;
4266
4267	Procedure TMainForm.SetShowLeftPanel( Value: boolean );
4268	begin
4269	ShowLeftPanelMI.Checked := Value;
4270	if Value = FShowLeftPanel then
4271	exit;
4272	FShowLeftPanel := Value;
4273	if FShowLeftPanel then
4274	NotebookOnPageChanged( self ) // make sure page is updated
4275	else
4276	FocusFirstHelpWindow;
4277	EnableControls;
4278	SetLayout;
4279	end;
4280
4281	Procedure TMainForm.VSplitBarOnChange (NewSplit: LongInt);
4282	Begin
4283	if VSplitBar.Left < 30 then
4284	begin
4285	ShowLeftPanel := false
4286	end
4287	else
4288	begin
4289	Settings.LeftPanelWidth := VSplitBar.Left;
4290	ShowLeftPanel := true;
4291	end;
4292	SetLayout;
4293	End;
4294
4295	// Set the layout of the main form
4296	Procedure TMainForm.SetLayout;
4297	var
4298	RealClientHeight : longint;
4299	CoolbarSpace: longint;
4300	TextHeight: longint;
4301	Begin
4302	TextHeight := Canvas.TextHeight( 'S' );
4303	Tabset.Height := TextHeight + 5;
4304
4305	Coolbar.Visible := Settings.ToolbarStyle <> tsNone;
4306
4307	case Settings.ToolbarStyle of
4308	tsImages:
4309	Coolbar.Height := Coolbar.Sections[ 0 ].Width;
4310	tsText:
4311	Coolbar.Height := TextHeight + 5;
4312	tsImagesAndText:
4313	CoolBar.Height := ButtonImages.GetBitmapReference(0).Width + TextHeight + 10;
4314	end;
4315
4316	CoolbarSpace := Coolbar.Height;
4317	if not Coolbar.Visible then
4318	CoolbarSpace := 0;
4319
4320	StatusPanel.Left:= 0;
4321	StatusPanel.Width:= ClientWidth div 2 - 2;
4322	StatusPanel.Height := TextHeight + 2;
4323
4324	ProgressPanel.Left:= ClientWidth div 2 + 2;
4325	ProgressPanel.Width:= ClientWidth - ProgressPanel.Left;
4326	ProgressPanel.Height := TextHeight + 2;
4327
4328	Notebook.Bottom := StatusPanel.Height + 3;
4329	VSplitBar.Bottom := Notebook.Bottom;
4330	DisplayPanel.Bottom := Notebook.Bottom;
4331
4332	RealClientHeight := ClientHeight
4333	- CoolbarSpace
4334	- Notebook.Bottom;
4335
4336	LogEvent(LogStartup, 'TMainForm.SetLayout');
4337	LogEvent(LogStartup, ' RealClientHeight: ' + IntToStr( RealClientHeight ));
4338
4339	LogEvent(LogStartup, ' Form Width: ' + IntToStr( Width ));
4340	LogEvent(LogStartup, ' Form Height: ' + IntToStr( Height ) );
4341	LogEvent(LogStartup, ' Form ClientWidth: ' + IntToStr( ClientWidth ) );
4342	LogEvent(LogStartup, ' Form ClientHeight: ' + IntToStr( ClientHeight ) );
4343	LogEvent(LogStartup, ' CoolBar.Height: ' + IntToStr( CoolBar.Height ) );
4344	LogEvent(LogStartup, ' CoolBar.Bottom: ' + IntToStr( CoolBar.Bottom ) );
4345
4346	if CurrentOpenFiles.Count > 0 then
4347	VSplitBar.Width := Max( 5, Canvas.TextWidth( ' ' ) )
4348	else
4349	VSplitBar.Width := 0;
4350
4351	VSplitBar.Height := RealClientHeight;
4352
4353	if Settings.LeftPanelWidth > ClientWidth - 50 then
4354	Settings.LeftPanelWidth := ClientWidth - 50;
4355	if Settings.LeftPanelWidth < 50 then
4356	Settings.LeftPanelWidth := 50;
4357
4358	if ShowLeftPanel then
4359	begin
4360	VSplitBar.Left := Settings.LeftPanelWidth;
4361	VSplitBar.Hint := SplitBarDblClickToHide;
4362	end
4363	else
4364	begin
4365	VSplitBar.Left := 0;
4366	VSplitBar.Hint := SplitBarDblClickToShow;
4367	end;
4368
4369	Tabset.Left := 0;
4370	Tabset.Width := VSplitBar.Left;
4371	Tabset.Bottom := ClientHeight
4372	- CoolbarSpace
4373	- Tabset.Height;
4374
4375	Notebook.Left := 0;
4376	Notebook.Width := VSplitBar.Left;
4377	Notebook.Height := RealClientHeight
4378	- Tabset.Height
4379	- 3;
4380
4381	DisplayPanel.Left:= VSplitBar.Left + VSplitBar.Width;
4382	DisplayPanel.Width:= ClientWidth - DisplayPanel.Left;
4383	DisplayPanel.Height := RealClientHeight;
4384	LogEvent(LogStartup, ' DisplayPanel.Width: ' + IntToStr( DisplayPanel.Width ) );
4385	LogEvent(LogStartup, ' DisplayPanel.Height: ' + IntToStr( DisplayPanel.Height ) );
4386	LogEvent(LogStartup, ' DisplayPanel.Bottom: ' + IntToStr( DisplayPanel.Bottom ) );
4387
4388	ProgressBar.Left:= 1;
4389	ProgressBar.Bottom:= 1;
4390	ProgressBar.Width:= ProgressPanel.Width - 2;
4391	ProgressBar.Height:= ProgressPanel.Height - 2;
4392
4393	// Layout the visible help windows also
4394	LayoutWindowList( Windows );
4395	End;
4396
4397	// Lay out the specified list of help windows
4398	Procedure TMainForm.LayoutWindowList( WindowList: TList );
4399	var
4400	Window: THelpWindow;
4401	WindowIndex: longint;
4402	begin
4403	for WindowIndex:= 0 to WindowList.Count - 1 do
4404	begin
4405	Window:= WindowList[ WindowIndex ];
4406	Window.SetLayout;
4407	end;
4408	end;
4409
4410	Procedure TMainForm.FindNextMIOnClick (Sender: TObject);
4411	begin
4412	if FindText = '' then
4413	begin
4414	FindMIOnClick( sender );
4415	exit;
4416	end;
4417
4418	if GetActiveWindow = nil then
4419	begin
4420	DoErrorDlg( FindTitle,
4421	FindSelectWindowError );
4422	exit;
4423	end;
4424
4425	DoFind( foFromCurrent );
4426	end;
4427
4428	Procedure TMainForm.DoFind( FindOrigin: TFindOrigin );
4429	var
4430	Window: THelpWindow;
4431	begin
4432	SetWaitCursor;
4433	Window := GetActiveWindow;
4434	if not Window.View.Find( FindOrigin, FindText ) then
4435	begin
4436	SetStatus( TextNotFoundMsg );
4437	Beep( 1000, 100 );
4438	end;
4439	ClearWaitCursor;
4440	End;
4441
4442	Procedure TMainForm.FindMIOnClick (Sender: TObject);
4443	begin
4444	if GetActiveWindow = nil then
4445	begin
4446	DoErrorDlg( FindTitle,
4447	FindSelectWindowError );
4448	exit;
4449	end;
4450	if not DoInputQuery( FindTitle,
4451	FindPrompt,
4452	FindText ) then
4453	exit;
4454
4455	DoFind( foFromStart );
4456	End;
4457
4458	Procedure TMainForm.IndexSearchEditOnScan (Sender: TObject;
4459	Var KeyCode: TKeyCode);
4460	Begin
4461	case KeyCode of
4462	kbCUp:
4463	begin
4464	if IndexListBox.ItemIndex > 0 then
4465	IndexListBox.ItemIndex:= IndexListBox.ItemIndex - 1;
4466	KeyCode:= kbNull;
4467	end;
4468
4469	kbCDown:
4470	begin
4471	if IndexListBox.ItemIndex < IndexListBox.Items.Count - 1 then
4472	IndexListBox.ItemIndex:= IndexListBox.ItemIndex + 1;
4473	KeyCode:= kbNull;
4474	end;
4475
4476	kb_VK + VK_NEWLINE:
4477	begin
4478	DisplaySelectedIndexTopic;
4479	end;
4480	end;
4481
4482	End;
4483
4484	Procedure TMainForm.IndexSearchEditOnChange (Sender: TObject);
4485	var
4486	MatchIndex: longint;
4487	IndexINdex: longint;
4488	SearchText: string;
4489	Begin
4490	if InIndexSearch then
4491	exit;
4492
4493	MatchIndex:= -1;
4494	SearchText:= trim( IndexSearchEdit.Text );
4495	for IndexIndex:= 0 to DisplayedIndex.Count - 1 do
4496	begin
4497	if StrStarts( SearchText, DisplayedIndex[ IndexIndex ] ) then //IndexEntry ) then
4498	begin
4499	MatchIndex:= IndexIndex;
4500	break;
4501	end;
4502	end;
4503
4504	if MatchIndex = -1 then
4505	exit;
4506
4507	InIndexSearch:= true;
4508
4509	if IndexListBox.ItemIndex <> MatchIndex then
4510	IndexListBox.ItemIndex:= MatchIndex;
4511
4512	InIndexSearch:= false;
4513	End;
4514
4515	Procedure TMainForm.FileInformationMIOnClick (Sender: TObject);
4516	var
4517	FileIndex: longint;
4518	HelpFile: THelpFile;
4519
4520	TotalTopicCount: longint;
4521	TotalIndexCount: longint;
4522	TotalFileSize: longint;
4523
4524	Begin
4525	TotalTopicCount := 0;
4526	TotalIndexCount := 0;
4527	TotalFileSize := 0;
4528
4529	with InformationForm.InformationMemo do
4530	begin
4531	BeginUpdate;
4532	Lines.Clear;
4533	Lines.Add( FilesInfoTitle );
4534	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
4535	begin
4536	HelpFile := CurrentOpenFiles[ FileIndex ];
4537
4538	Lines.Add( FilesInfoFilename + HelpFile.FileName );
4539	Lines.Add( FilesInfoFileTitle
4540	+ HelpFile.Title );
4541	Lines.Add( FilesInfoTopicCount
4542	+ IntToStr( HelpFile.TopicCount ) );
4543	Lines.Add( FilesInfoIndexCount
4544	+ IntToStr( HelpFile.Index.Count ) );
4545	Lines.Add( FilesInfoDictionaryCount
4546	+ IntToStr( HelpFile.DictionaryCount ) );
4547	Lines.Add( FilesInfoFileSize
4548	+ IntToStr( HelpFile.FileSize ) );
4549
4550	inc( TotalTopicCount, HelpFile.TopicCount );
4551	inc( TotalIndexCount, HelpFile.Index.Count );
4552	inc( TotalFileSize, HelpFile.FileSize );
4553
4554	end;
4555
4556	Lines.Add( '' );
4557	Lines.Add( FilesInfoTotalTopicCount
4558	+ IntToStr( TotalTopicCount ) );
4559	Lines.Add( FilesInfoTotalIndexCount
4560	+ IntToStr( TotalIndexCount ) );
4561	Lines.Add( FilesInfoTotalFileSize
4562	+ IntToStr( TotalFileSize ) );
4563	Lines.Add( '' );
4564
4565	EndUpdate;
4566	end;
4567	InformationForm.ShowModal;
4568	End;
4569
4570	Procedure TMainForm.DisplaySelectedSearchResultTopic;
4571	var
4572	Topic: TTopic;
4573	Begin
4574	if SearchResultsListBox.ItemIndex = -1 then
4575	exit;
4576	if SelectedObject( SearchResultsListBox ) = nil then
4577	// the "no results" place holder
4578	exit;
4579	Topic := SelectedObject( SearchResultsListBox ) as TTopic;
4580	DisplayTopic( Topic );
4581	End;
4582
4583	Procedure TMainForm.SearchTextEditOnScan (Sender: TObject;
4584	Var KeyCode: TKeyCode);
4585	Begin
4586	case KeyCode of
4587	kbCUp:
4588	begin
4589	if SearchResultsListBox.ItemIndex > 0 then
4590	SearchResultsListBox.ItemIndex := SearchResultsListBox.ItemIndex - 1;
4591	KeyCode := kbNull;
4592	SearchResultsListBox.Focus;
4593	end;
4594
4595	kbCDown:
4596	begin
4597	if SearchResultsListBox.ItemIndex < SearchResultsListBox.Items.Count - 1 then
4598	SearchResultsListBox.ItemIndex := SearchResultsListBox.ItemIndex + 1;
4599	KeyCode := kbNull;
4600	SearchResultsListBox.Focus;
4601	end;
4602	end;
4603	End;
4604
4605	Procedure TMainForm.SearchButtonOnClick (Sender: TObject);
4606	Begin
4607	DoSearch;
4608	End;
4609
4610	// Matches old stupid View algorithm
4611	Procedure TMainForm.StartupTopicSearch( const SearchText: string );
4612	var
4613	i: longint;
4614	HelpFile: THelpFile;
4615	Topic: TTopic;
4616	// s: string;
4617	begin
4618	// search files in order they are open
4619	for i := 0 to CurrentOpenFiles.Count - 1 do
4620	begin
4621	HelpFile := THelpFile( CurrentOpenFiles[ i ] );
4622
4623	// look for a topic whose title starts with the searchtext
4624	Topic := HelpFile.FindTopicByTitleStartsWith( SearchText );
4625
4626	if Topic = nil then
4627	// look for an index entry that starts with the searchtext
4628	Topic := HelpFile.FindTopicByIndexStartsWith( SearchText );
4629
4630	if Topic = nil then
4631	// look for a topic whose title contains the searchtext
4632	Topic := HelpFile.FindTopicByTitleContains( SearchText );
4633
4634	if Topic = nil then
4635	// look for an index entry that contains the searchtext
4636	Topic := HelpFile.FindTopicByIndexContains( SearchText );
4637
4638	if Topic <> nil then
4639	begin
4640	// found something, display it (don't keep searching files)
4641	DisplayTopic( Topic );
4642	exit;
4643	end;
4644	end;
4645	DoErrorDlg( SearchTitle, TextNotFoundMsg );
4646	end;
4647
4648	Procedure TMainForm.SearchFor( const SearchText: string );
4649	begin
4650	SearchTextEdit.Text := SearchText;
4651	DisplaySearch;
4652	SearchResultsListBox.Focus;
4653
4654	// force repaint of everything before we start searching.
4655	Update;
4656
4657	DoSearch;
4658	end;
4659
4660	Procedure TMainForm.ClearAllWordSequences;
4661	var
4662	i: longint;
4663	FileWordSequences: TList;
4664	HelpFile: THelpFile;
4665	begin
4666	if AllFilesWordSequences = nil then
4667	exit;
4668
4669	for i := 0 to AllFilesWordSequences.Count - 1 do
4670	begin
4671	FileWordSequences := AllFilesWordSequences[ i ];
4672	HelpFile := CurrentOpenFiles[ i ];
4673	ClearWordSequences( FileWordSequences, HelpFile.DictionaryCount );
4674	FileWordSequences.Destroy;
4675	end;
4676	AllFilesWordSequences.Clear;
4677	end;
4678
4679	// Perform search for text in searchedit.
4680	Procedure TMainForm.DoSearch;
4681	var
4682	SearchResults: TList;
4683	SearchText: string;
4684	FileIndex: longint;
4685	HelpFile: THelpFile;
4686	TopicIndex: longint;
4687	Topic: TTopic;
4688	FileWordSequences: TList;
4689	Query: TTextSearchQuery;
4690	begin
4691	SearchText := Trim( SearchTextEdit.Text );
4692
4693	SearchResultsListBox.Clear;
4694
4695	if SearchText = '' then
4696	exit;
4697
4698	SearchResultsListBox.Items.Add( SearchingMsg );
4699	SetStatus( SearchingMsg );
4700
4701	try
4702	Query := TTextSearchQuery.Create( SearchText );
4703	except
4704	on e: ESearchSyntaxError do
4705	begin
4706	DoErrorDlg( SearchTitle,
4707	SearchSyntaxError
4708	+ e.Message );
4709	exit;
4710	end;
4711	end;
4712
4713	ClearAllWordSequences;
4714
4715	SetWaitCursor;
4716
4717	SearchResults := TList.Create;
4718
4719	// Search open help file
4720	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
4721	begin
4722	HelpFile := CurrentOpenFiles[ FileIndex ];
4723
4724	FileWordSequences := TList.Create;
4725
4726	try
4727	SearchHelpFile( HelpFile,
4728	Query,
4729	SearchResults,
4730	FileWordSequences );
4731	except
4732	on E: EHelpFileException do
4733	begin
4734	DoErrorDlg( ErrorTitle, E.Message );
4735	Query.Destroy;
4736	ClearWaitCursor;
4737	exit;
4738	end;
4739	end;
4740
4741	AllFilesWordSequences.Add( FileWordSequences );
4742
4743	end;
4744
4745	// Sort results across all files by relevance
4746	SearchResults.Sort( TopicRelevanceCompare );
4747
4748	// Load topics into search results list.
4749	SearchResultsListBox.BeginUpdate;
4750	SearchResultsListBox.Clear;
4751
4752	for TopicIndex := 0 to SearchResults.Count - 1 do
4753	begin
4754	Topic := SearchResults[ TopicIndex ];
4755	SearchResultsListBox.Items.AddObject( Topic.Title
4756	+ ' ['
4757	+ IntToStr( Topic.SearchRelevance )
4758	+ ']',
4759	Topic );
4760	end;
4761
4762	EnableControls;
4763	if SearchResultsListBox.Items.Count > 0 then
4764	// there are some search matches, so highlight words
4765	ViewHighlightSearchWordsMI.Checked := true;
4766
4767	SearchResultsListBox.ItemIndex := -1;
4768	SearchResultsListBox.EndUpdate;
4769
4770	Query.Destroy;
4771	SearchResults.Destroy;
4772
4773	if SearchResultsListBox.Items.Count > 0 then
4774	begin
4775	SearchResultsListBox.ItemIndex := 0;
4776	end
4777	else
4778	begin
4779	SearchResultsListBox.Items.Add( NoSearchMatchesMsg
4780	+ ': '
4781	+ SearchText );
4782	RefreshWindows( Windows ); // update to remove old highlights
4783	end;
4784	SetStatus( SearchFoundMsgA
4785	+ IntToStr( SearchResultsListBox.Items.Count )
4786	+ SearchFoundMsgB
4787	+ StrDoubleQuote( SearchText ) );
4788
4789	ClearWaitCursor;
4790
4791	DisplaySelectedSearchResultTopic;
4792
4793	End;
4794
4795	Procedure TMainForm.FileSaveAsMIOnClick (Sender: TObject);
4796	var
4797	F: File;
4798	EntryText: PChar;
4799	TextLength: longint;
4800	Window: THelpWindow;
4801	Filename: string;
4802	Begin
4803	Window := GetActiveWindow;
4804	if Window = nil then
4805	begin
4806	DoErrorDlg( FileSaveTitle,
4807	FileSaveSelectWindowError );
4808	exit;
4809	end;
4810
4811	if DoSaveFileDialog( FileSaveTitle,
4812	AllFilesDesc + '\|*',
4813	DefaultSaveTopicFilename,
4814	Settings.LastSaveDirectory,
4815	Filename ) then
4816	begin
4817	if FileExists( Filename ) then
4818	if not DoConfirmDlg( FileSaveTitle,
4819	ReplaceFilePromptA
4820	+ Filename
4821	+ ReplaceFilePromptB ) then
4822	exit;
4823	System.Assign( F, Filename );
4824
4825	try
4826	Rewrite( F );
4827	except
4828	on E: Exception do
4829	begin
4830	DoErrorDlg( FileSaveTitle,
4831	UnableToSaveError
4832	+ Filename
4833	+ ': '
4834	+ E.Message );
4835	exit;
4836	end;
4837	end;
4838
4839	// find out length of (plain) text
4840	TextLength := Window.View.CopyTextToBuffer( nil, -1 );
4841
4842	// allocate space
4843	EntryText:= StrAlloc( TextLength );
4844
4845	// get the plain text
4846	Window.View.CopyTextToBuffer( EntryText, TextLength );
4847
4848	// save to file
4849	System.BlockWrite( F, EntryText^, TextLength );
4850
4851	// free space
4852	StrDispose( EntryText );
4853
4854	System.Close( F );
4855	end;
4856	End;
4857
4858	Procedure TMainForm.OptionsMIOnClick (Sender: TObject);
4859	begin
4860	DoOptions;
4861	end;
4862
4863	Procedure TMainForm.DoOptions;
4864	Begin
4865	EnsureOptionsFormLoaded;
4866
4867	GetColors; // in case changed by drag drop
4868
4869	if OptionsForm.ShowModal = mrOK then
4870	begin
4871	ApplySettings;
4872	SetLayout;
4873	RefreshFontSubstitutions;
4874	RefreshWindows( Windows );
4875	end;
4876	End;
4877
4878	Procedure TMainForm.ShowUsage;
4879	begin
4880	DoMessageDlg( UsageTitle,
4881	UsageText1 + EndLine
4882	+ UsageText2 + EndLine
4883	+ UsageText3 + EndLine
4884	+ UsageText4 + EndLine
4885	+ UsageText5 + EndLine
4886	+ UsageText6 + EndLine
4887	+ UsageText7 + EndLine
4888	+ UsageText8 );
4889	end;
4890
4891	Procedure TMainForm.TabSetOnChange (Sender: TObject; NewTab: LongInt;
4892	Var AllowChange: Boolean);
4893	Begin
4894	NoteBook.PageIndex := NewTab;
4895	End;
4896
4897	Procedure TMainForm.NotebookOnSetupShow (Sender: TObject);
4898	Begin
4899	ContentsOutline.xStretch := xsFrame;
4900	ContentsOutline.yStretch := ysFrame;
4901
4902	IndexSearchEdit.yAlign := yaTop;
4903	IndexSearchEdit.xStretch := xsFrame;
4904	IndexListBox.yStretch := ysFrame;
4905	IndexListBox.xStretch := xsFrame;
4906
4907	SearchTextEdit.yAlign := yaTop;
4908	SearchTextEdit.xStretch := xsFrame;
4909	SearchButton.yAlign := yaTop;
4910	SearchButton.xAlign := xaRight;
4911	SearchResultsListBox.xStretch := xsFrame;
4912	SearchResultsListBox.yStretch := ysFrame;
4913
4914	NotesListBox.xStretch := xsFrame;
4915	NotesListBox.yStretch := ysFrame;
4916	End;
4917
4918	Procedure TMainForm.EnableControls;
4919	var
4920	BackEnabled: boolean;
4921	ForwardEnabled: boolean;
4922	FileOpen: boolean;
4923	WindowOpen: boolean;
4924	AtTop: boolean;
4925	AtBottom: boolean;
4926	begin
4927	ViewContentsMI.Checked := ShowLeftPanel and ( Notebook.PageIndex = piContents );
4928	ViewIndexMI.Checked := ShowLeftPanel and ( Notebook.PageIndex = piIndex );
4929	ViewSearchMI.Checked := ShowLeftPanel and ( Notebook.PageIndex = piSearch );
4930	ViewNotesMI.Checked := ShowLeftPanel and ( Notebook.PageIndex = piNotes );
4931
4932	BackEnabled := CurrentHistoryIndex > 0;
4933	ForwardEnabled := CurrentHistoryIndex < PageHistory.Count - 1;
4934
4935	FileOpen := CurrentOpenFiles.Count > 0;
4936	WindowOpen := Windows.Count > 0;
4937
4938	ViewContentsMI.Enabled := FileOpen;
4939	ViewIndexMI.Enabled := FileOpen;
4940	ViewSearchMI.Enabled := FileOpen;
4941	ViewNotesMI.Enabled := FileOpen;
4942
4943	ShowLeftPanelMI.Enabled := FileOpen;
4944
4945	Coolbar.Sections[ ciBack ].Disabled := not BackEnabled;
4946	NavigateBackMI.Enabled := BackEnabled;
4947	Coolbar.Sections[ ciForward ].Disabled := not ForwardEnabled;
4948	NavigateForwardMI.Enabled := ForwardEnabled;
4949
4950	FileSaveAsMI.Enabled := FileOpen;
4951
4952	Coolbar.Sections[ ciPrint ].Disabled := not FileOpen;
4953	PrintMI.Enabled := FileOpen;
4954	FileInformationMI.Enabled := FileOpen;
4955
4956	Coolbar.Sections[ ciAddBookmark ].Disabled := not FileOpen;
4957	AddBookmarkMI.Enabled := FileOpen;
4958	EditBookmarksMI.Enabled := FileOpen;
4959	Coolbar.Sections[ ciAddNote ].Disabled := not FileOpen;
4960	AddNoteMI.Enabled := FileOpen;
4961
4962	if ContentsOutline.SelectedNode <> nil then
4963	begin
4964	AtTop := ContentsOutline.NextNodeUp( ContentsOutline.SelectedNode, false ) = nil;
4965	AtBottom := ContentsOutline.NextNodeDown( ContentsOutline.SelectedNode, false ) = nil;
4966	end;
4967
4968	NavigateNextMI.Enabled := FileOpen
4969	and ( ContentsOutline.SelectedNode <> nil )
4970	and ( not AtBottom );
4971	Coolbar.Sections[ ciNext ].Disabled := not NavigateNextMI.Enabled;
4972	NavigatePreviousMI.Enabled := FileOpen
4973	and ( ContentsOutline.SelectedNode <> nil )
4974	and ( not AtTop );
4975	Coolbar.Sections[ ciPrevious ].Disabled := not NavigatePreviousMI.Enabled;
4976
4977	FileCloseMI.Enabled := FileOpen;
4978
4979	FindMI.Enabled := WindowOpen;
4980	FindNextMI.Enabled := WindowOpen;
4981	CopyMI.Enabled := WindowOpen;
4982	SelectAllMI.Enabled := WindowOpen;
4983
4984	ViewExpandAllMI.Enabled := ContentsOutline.ChildCount > 0;
4985	ViewCollapseAllMI.Enabled := ContentsOutline.ChildCount > 0;
4986
4987	DebugTopicByResourceIDMI.Enabled := FileOpen;
4988	TopicByNameMI.Enabled := FileOpen;
4989
4990	ViewHighlightSearchWordsMI.Enabled := SearchResultsListBox.Items.Count > 0;
4991	if not ViewHighlightSearchWordsMI.Enabled then
4992	ViewHighlightSearchWordsMI.Checked := false;
4993
4994	ViewRefreshMI.Enabled := WindowOpen;
4995
4996	EnableSearchButton;
4997	EnableNotesControls;
4998
4999	VSplitBar.Visible := FileOpen;
5000	if not FileOpen then
5001	begin
5002	SetShowLeftPanel( false );
5003	end;
5004
5005
5006	end;
5007
5008	Procedure TMainForm.NavigateBackMIOnClick (Sender: TObject);
5009	begin
5010	NavigateBack;
5011	end;
5012
5013	Procedure TMainForm.SaveNavigatePoint;
5014	var
5015	NavPoint: TNavigatePoint;
5016	begin
5017	// delete rest of history.
5018	while CurrentHistoryIndex < PageHistory.Count - 1 do
5019	begin
5020	NavPoint:= PageHistory.Objects[ CurrentHistoryIndex + 1 ] as TNavigatePoint;
5021	NavPoint.Destroy;
5022	PageHistory.Delete( CurrentHistoryIndex + 1 );
5023	end;
5024
5025	NavPoint:= TNavigatePoint.Create;
5026	SaveWindows( Windows, NavPoint.Windows, nil );
5027
5028	if ContentsOutline.SelectedNode <> nil then
5029	NavPoint.ContentsTopic:= ContentsOutline.SelectedNode.Data as TTopic
5030	else
5031	NavPoint.ContentsTopic:= nil;
5032
5033	if CurrentTopic <> nil then
5034	PageHistory.AddObject( CurrentTopic.Title, NavPoint )
5035	else
5036	PageHistory.AddObject( '', NavPoint );
5037
5038	inc( CurrentHistoryIndex );
5039
5040	CreateNavigateToMenuItems;
5041	end;
5042
5043	Procedure TMainForm.UpdateCurrentNavigatePoint;
5044	var
5045	NavPoint: TNavigatePoint;
5046	begin
5047	if CurrentHistoryIndex = -1 then
5048	exit;
5049
5050	NavPoint:= PageHistory.Objects[ CurrentHistoryIndex ] as TNavigatePoint;
5051
5052	DestroyListObjects( NavPoint.Windows );
5053	NavPoint.Windows.Clear;
5054
5055	SaveWindows( Windows, NavPoint.Windows, nil );
5056	end;
5057
5058	Procedure TMainForm.ClearPageHistory;
5059	var
5060	i: longint;
5061	NavPoint: TNavigatePoint;
5062	begin
5063	for i := 0 to PageHistory.Count - 1 do
5064	begin
5065	NavPoint := PageHistory.Objects[ i ] as TNavigatePoint;
5066	NavPoint.Destroy;
5067	end;
5068	PageHistory.Clear;
5069	CurrentHistoryIndex := -1;
5070	CreateNavigateToMenuItems;
5071	EnableControls;
5072	end;
5073
5074	Procedure TMainForm.SaveWindows( SourceList: TList;
5075	DestList: TList;
5076	Parent: TSavedHelpWindow );
5077
5078	var
5079	WindowIndex: longint;
5080	Window: THelpWindow;
5081	WindowCopy: TSavedHelpWindow;
5082	begin
5083	// limit storage to only what's need since list will be static.
5084	DestList.Capacity := SourceList.Count;
5085	for WindowIndex := 0 to SourceList.Count - 1 do
5086	begin
5087	Window := SourceList[ WindowIndex ];
5088	WindowCopy := TSavedHelpWindow.Create;
5089	WindowCopy.Parent := Parent;
5090	WindowCopy.Rect.Assign( Window.Rect );
5091	WindowCopy.Topic := Window.Topic;
5092	WindowCopy.Group := Window.Group;
5093	WindowCopy.TopCharIndex := Window.View.TopCharIndex;
5094	SaveWindows( Window.ChildWindows, WindowCopy.ChildWindows, WindowCopy );
5095	DestList.Add( WindowCopy );
5096	end;
5097	end;
5098
5099	Procedure TMainForm.DisplayWindows( WindowList: TList;
5100	Parent: THelpWindow );
5101	var
5102	WindowIndex: longint;
5103	WindowCopy: TSavedHelpWindow;
5104	NewWindow: THelpWindow;
5105	begin
5106	for WindowIndex := 0 to WindowList.Count - 1 do
5107	begin
5108	WindowCopy := WindowList[ WindowIndex ];
5109	NewWindow := OpenWindow( WindowCopy.Topic,
5110	WindowCopy.Group,
5111	Parent,
5112	WindowCopy.Rect,
5113	false ); // don't follow links
5114	NewWindow.View.TopCharIndex := WindowCopy.TopCharIndex;
5115	DisplayWindows( WindowCopy.ChildWindows, NewWindow );
5116	end;
5117	end;
5118
5119	Procedure TMainForm.CreateNavigateToMenuItems;
5120	var
5121	MenuItem: TMenuItem;
5122	i: integer;
5123	begin
5124	// clear existing items
5125	DestroyListObjects( NavigateToMenuItems );
5126	NavigateToMenuItems.Clear;
5127
5128	if CurrentHistoryIndex > 0 then
5129	begin
5130	// We are going to add some items, so
5131	// add a seperator from the rest of the menu first
5132	MenuItem := TMenuItem.Create( self );
5133	MenuItem.Caption:= '-';
5134	NavigateMenu.Add( MenuItem );
5135	NavigateToMenuItems.Add( MenuItem );
5136	end;
5137
5138	i := CurrentHistoryIndex - 1; // don't include the current history item
5139	while ( ( i >= 0 )
5140	and ( i > CurrentHistoryIndex - 10 ) ) do
5141	begin
5142	MenuItem := TMenuItem.Create( self );
5143	MenuItem.Caption := PageHistory[ i ];
5144	MenuItem.Hint := GoBackHint
5145	+ StrDoubleQuote( PageHistory[ i ] );
5146	MenuItem.OnClick := OnNavigateToMenuItemClick;
5147	MenuItem.Tag := i;
5148
5149	NavigateMenu.Add( MenuItem );
5150	NavigateToMenuItems.Add( MenuItem );
5151	dec( i );
5152	end;
5153	end;
5154
5155	Procedure TMainForm.NavigateToPoint( NavPoint: TNavigatePoint );
5156	begin
5157	Navigating := true;
5158
5159	// close current windows
5160	CloseWindows;
5161
5162	// Display windows for the navigate point
5163	DisplayWindows( NavPoint.Windows, nil );
5164
5165	// Select the contents topic
5166	ContentsOutline.SetSelectedObject( NavPoint.ContentsTopic );
5167
5168	// Update the navigate menu (since a different set of
5169	// back-points are now available)
5170	CreateNavigateToMenuItems;
5171
5172	// Make the topic windows visible
5173	ShowWindows;
5174
5175	// Update back buttons etc...
5176	EnableControls;
5177
5178	Navigating := false;
5179	end;
5180
5181	Procedure TMainForm.NavigateToHistoryIndex( Index: longint );
5182	var
5183	NavPoint: TNavigatePoint;
5184	begin
5185	UpdateCurrentNavigatePoint;
5186	CurrentHistoryIndex := Index;
5187	NavPoint := PageHistory.Objects[ CurrentHistoryIndex ] as TNavigatePoint;
5188	NavigateToPoint( NavPoint );
5189	end;
5190
5191	Procedure TMainForm.NavigateForward;
5192	Begin
5193	if CurrentHistoryIndex < PageHistory.Count - 1 then
5194	begin
5195	NavigateToHistoryIndex( CurrentHistoryIndex + 1 );
5196	end;
5197	End;
5198
5199	Procedure TMainForm.NavigateBack;
5200	Begin
5201	if CurrentHistoryIndex > 0 then
5202	begin
5203	NavigateToHistoryIndex( CurrentHistoryIndex - 1 );
5204	end;
5205	End;
5206
5207	Procedure TMainForm.NavigatePreviousInContents;
5208	begin
5209	ContentsOutline.GotoNextNodeUp;
5210	DisplaySelectedContentsTopic;
5211	end;
5212
5213	Procedure TMainForm.NavigateNextInContents;
5214	begin
5215	ContentsOutline.GotoNextNodeDown;
5216	DisplaySelectedContentsTopic;
5217	end;
5218
5219	Procedure TMainForm.CorrectNotesPositions( Topic: TTopic;
5220	Text: pchar );
5221	var
5222	NoteIndex: longint;
5223	Note: THelpNote;
5224	p: pchar;
5225	NextP: pchar;
5226	Element: TTextElement;
5227	TextIndex: longint;
5228	begin
5229	NoteIndex := 0;
5230	for NoteIndex := 0 to Notes.Count - 1 do
5231	begin
5232	Note := Notes[ NoteIndex ];
5233	if Note.Topic = Topic then
5234	begin
5235	// this note belongs the the specified topic.
5236	p := Text;
5237
5238	while true do
5239	begin
5240	Element := ExtractNextTextElement( p, NextP );
5241	if Element.ElementType = teTextEnd then
5242	break;
5243	TextIndex := PCharDiff( p, Text );
5244	if TextIndex >= Note.InsertPoint then
5245	begin
5246	// found a safe point to insert
5247	if TextIndex <> Note.InsertPoint then
5248	begin
5249	// correct it.
5250	Note.InsertPoint := TextIndex;
5251	end;
5252	break;
5253	end;
5254
5255	p := NextP;
5256	end;
5257	end;
5258	end;
5259	end;
5260
5261	Procedure TMainForm.InsertNotesIntoTopicText( Topic: TTopic;
5262	Text: TAString );
5263	var
5264	NoteIndex: longint;
5265	Note: THelpNote;
5266	ActualInsertPoint: longword;
5267	begin
5268	CorrectNotesPositions( Topic, Text.AsPChar );
5269
5270	for NoteIndex := 0 to Notes.Count - 1 do
5271	begin
5272	Note := Notes[ NoteIndex ];
5273	if Note.Topic = Topic then
5274	begin
5275	// Adjust insert point for any notes we have already inserted.
5276	ActualInsertPoint := FindActualNoteCharIndex( Note.InsertPoint,
5277	NoteIndex,
5278	Topic );
5279	RefreshNoteInsertInfo( NoteIndex );
5280	Text.Insert( ActualInsertPoint, Note.InsertText );
5281	end;
5282	end;
5283	end;
5284
5285	Procedure TMainForm.NavigatePreviousMIOnClick (Sender: TObject);
5286	Begin
5287	NavigatePreviousInContents;
5288	End;
5289
5290	Procedure TMainForm.NavigateNextMIOnClick (Sender: TObject);
5291	Begin
5292	NavigateNextInContents;
5293	End;
5294
5295	Function TMainForm.GetActiveWindow: THelpWindow;
5296	var
5297	View: TRichTextView;
5298	FirstWindow: THelpWindow;
5299	begin
5300	Result := nil;
5301	if Screen.ActiveControl is TRichTextView then
5302	begin
5303	View := Screen.ActiveControl as TRichTextView;
5304	Result := FindWindowFromView( View, Windows );
5305	end
5306	else if Windows.Count = 1 then
5307	begin
5308	FirstWindow := Windows[ 0 ];
5309	if FirstWindow.ChildWindows.Count = 0 then
5310	Result := FirstWindow;
5311	end;
5312	end;
5313
5314	Procedure TMainForm.CopyMIOnClick (Sender: TObject);
5315	var
5316	Window: THelpWindow;
5317	begin
5318	if ActiveControl = nil then
5319	exit;
5320
5321	if ActiveControl is TEdit then
5322	begin
5323	// this is for the edit controls in the left panel
5324	TEdit( ActiveControl ).CopyToClipboard;
5325	exit;
5326	end;
5327
5328	// else copy from rtv in active help window
5329
5330	Window := GetActiveWindow;
5331	if Window = nil then
5332	exit;
5333
5334	Window.View.CopySelectionToClipboard;
5335	End;
5336
5337	Procedure TMainForm.SelectAllMIOnClick (Sender: TObject);
5338	var
5339	Window: THelpWindow;
5340	begin
5341	Window:= GetActiveWindow;
5342	if Window = nil then
5343	begin
5344	DoErrorDlg( SelectAllTitle,
5345	SelectAllWindowError );
5346	exit;
5347	end;
5348	Window.View.SelectAll;
5349	End;
5350
5351	Procedure TMainForm.DebugShowCodesMIOnClick (Sender: TObject);
5352	Begin
5353	DebugShowCodesMI.Checked:= not DebugShowCodesMI.Checked;
5354	RefreshWindows( Windows );
5355	End;
5356
5357	Procedure TMainForm.HelpProductInformationMIOnClick (Sender: TObject);
5358	Begin
5359	EnsureProductInformationFormLoaded;
5360	ProductInformationForm.ShowModal;
5361	End;
5362
5363	Procedure TMainForm.OnOverLink ( Sender: TRichTextView; LinkString: String);
5364	var
5365	Link: THelpLink;
5366	LinkIndex: longint;
5367	Window: THelpWindow;
5368	LinkedTopic: TTopic;
5369	Filename: string;
5370	SourceFile: THelpFile;
5371	LinkedProgram: string;
5372	URL: string;
5373	LinkDetails: string;
5374	ProgramInfo : TSerializableStringList;
5375	ProgramPath, ProgramLink : string;
5376	Begin
5377	if StrLeft( LinkString, 4 ) = 'note' then
5378	begin
5379	SetStatus( EditNoteMsg )
5380	end
5381	else if StrLeft( LinkString, 7 ) = 'program' then
5382	begin
5383	ProgramInfo := TSerializableStringList.create;
5384	ProgramInfo.readValuesFromSerializedString(StrRightFrom( LinkString, 9 ));
5385	ProgramPath := ProgramInfo.get(0);
5386	ProgramLink := ProgramInfo.get(1);
5387	TSerializableStringList.destroy;
5388	// call LaunchProgram here to inherit the environment
5389
5390	LinkedProgram := StrRightFrom( LinkString, 9 );
5391	SetStatus( LinkMsg + ' ' + ProgramPath + ' ' + ProgramLink);
5392	end
5393	else if StrLeft( LinkString, 3 ) = 'url' then
5394	begin
5395	URL := StrRightFrom( LinkString, 5 );
5396	SetStatus( LinkMsg
5397	+ URL );
5398	end
5399	else if StrLeft( LinkString, 8 ) = 'external' then
5400	begin
5401	LinkDetails := StrRightFrom( LinkString, 10 );
5402	LinkIndex := StrToInt( ExtractNextValue( LinkDetails, ' ' ) );
5403	Window := FindWindowFromView( Sender, Windows );
5404	SourceFile := Window.Topic.HelpFile as THelpFile;
5405	Filename := SourceFile.ReferencedFiles[ LinkIndex ];
5406	SetStatus( LinkMsg
5407	+ StrDoubleQuote( Filename ) );
5408	end
5409	else
5410	begin
5411	Window := FindWindowFromView( Sender, Windows );
5412	LinkIndex := StrToInt( LinkString );
5413	Link := Window.Topic.Links[ LinkIndex ];
5414
5415	if Link is TFootnoteHelpLink then
5416	begin
5417	SetStatus( FootnoteMsg );
5418	end
5419	else
5420	begin
5421	LinkedTopic := FindTopicForLink( Link );
5422
5423	if LinkedTopic <> nil then
5424	begin
5425	SetStatus( LinkMsg
5426	+ StrDoubleQuote( Trim( LinkedTopic.Title ) ) );
5427	end
5428	else
5429	begin
5430	SetStatus( UnknownLinkMsg );
5431	end;
5432	end;
5433	end;
5434	End;
5435
5436	Procedure TMainForm.OnNotOverLink ( Sender: TRichTextView; LinkString: String);
5437	Begin
5438	SetStatus( '' );
5439	end;
5440
5441	Procedure TMainForm.OnClickLink ( Sender: TRichTextView; LinkString: String);
5442	var
5443	Link: THelpLink;
5444	LinkIndex: longint;
5445	SourceWindow: THelpWindow;
5446	NoteIndex: longint;
5447	Window: THelpWindow;
5448	SourceFile: THelpFile;
5449	ProgramLink: string;
5450	ProgramPath: string;
5451	URL: string;
5452	LinkDetails: string;
5453	ProgramInfo : TSerializableStringList;
5454	Begin
5455	if StrLeft( LinkString, 4 ) = 'note' then
5456	begin
5457	NoteIndex := StrToInt( StrRightFrom( LinkString, 5 ) );
5458	NotesListBox.ItemIndex := NoteIndex;
5459	EditNote( NoteIndex );
5460	end
5461	else if StrLeft( LinkString, 7 ) = 'program' then
5462	begin
5463	ProgramInfo := TSerializableStringList.create;
5464	ProgramInfo.readValuesFromSerializedString(StrRightFrom( LinkString, 9 ));
5465	ProgramPath := ProgramInfo.get(0);
5466	ProgramLink := ProgramInfo.get(1);
5467	TSerializableStringList.destroy;
5468	// call LaunchProgram here to inherit the environment
5469	LogEvent(LogDisplay, 'LaunchProgram: "' + ProgramPath + '" "' + ProgramLink + '"');
5470	LaunchProgram(ProgramPath, ProgramLink, '');
5471	SetStatus( 'Launched ' + ProgramPath );
5472	end
5473	else if StrLeft( LinkString, 3 ) = 'url' then
5474	begin
5475	URL := StrRightFrom( LinkString, 5 );
5476	LaunchURL( URL );
5477	SetStatus( 'Opened '
5478	+ URL );
5479	end
5480	else if StrLeft( LinkString, 8 ) = 'external' then
5481	begin
5482	LinkDetails := StrRightFrom( LinkString, 10 );
5483	LinkIndex := StrToInt( ExtractNextValue( LinkDetails, ' ' ) );
5484	Window := FindWindowFromView( Sender, Windows );
5485	SourceFile := Window.Topic.HelpFile as THelpFile;
5486
5487	g_ExternalLinkFileName := SourceFile.ReferencedFiles[ LinkIndex ];
5488	g_ExternalLinkTopic := LinkDetails;
5489	g_ExternalLinkSourceFilename := SourceFile.Filename;
5490	g_ExternalLinkKeepCurrent := true; // hm... what would be nice?
5491
5492	PostMsg( Self.Handle,
5493	WM_FOLLOWEXTERNALLINK,
5494	0,
5495	0 );
5496	end
5497	else
5498	begin
5499	SourceWindow := FindWindowFromView( Sender, Windows );
5500	LinkIndex := StrToInt( LinkString );
5501	Link := SourceWindow.Topic.Links[ LinkIndex ];
5502
5503	PostMsg( Self.Handle,
5504	WM_FOLLOWLINK,
5505	longint( Link ),
5506	longint( SourceWindow ) );
5507
5508	end;
5509	End;
5510
5511	Procedure TMainForm.OnWindowAboutToClose( Window: THelpWindow;
5512	var CanClose: boolean );
5513	begin
5514	if Navigating then
5515	exit;
5516
5517	UpdateCurrentNavigatePoint; // Save it before close...
5518
5519	CanClose := true;
5520	end;
5521
5522	Procedure TMainForm.RemoveHelpWindowFromParent( Window: THelpWindow );
5523	var
5524	ParentWindow: THelpWindow;
5525	WindowIndex: longint;
5526	Begin
5527	if Navigating then
5528	exit;
5529
5530	if Window.ParentHelpWindow = nil then
5531	begin
5532	WindowIndex := Windows.IndexOf( Window );
5533	Windows.Delete( WindowIndex );
5534	end
5535	else
5536	begin
5537	ParentWindow := Window.ParentHelpWindow;
5538	WindowIndex := ParentWindow.ChildWindows.IndexOf( Window );
5539	ParentWindow.ChildWindows.Delete( WindowIndex );
5540	end;
5541	end;
5542
5543	Procedure TMainForm.OnWindowClose( Window: THelpWindow );
5544	Begin
5545	if Navigating then
5546	exit;
5547
5548	RemoveHelpWindowFromParent( Window );
5549
5550	SaveNavigatePoint;
5551	EnableControls;
5552	End;
5553
5554	Procedure TMainForm.BackButtonOnClick (Sender: TObject);
5555	Begin
5556	NavigateBack;
5557	End;
5558
5559	Procedure TMainForm.RTViewOnSetupShow (Sender: TObject);
5560	Begin
5561	End;
5562
5563	Procedure TMainForm.ExitMIOnClick (Sender: TObject);
5564	Begin
5565	Close;
5566	End;
5567
5568	Procedure TMainForm.CreateMRUMenuItems;
5569	var
5570	MenuItem: TMenuItem;
5571	i: integer;
5572	FileName: string;
5573	FileNameIndex: longint;
5574	MRUText: string;
5575	MRUItem: TMRUItem;
5576	begin
5577	DestroyListObjects( MRUMenuItems );
5578	MRUMenuItems.Clear;
5579
5580	// if there are Most Recently Used files
5581	if Settings.MRUList.Count > 0 then
5582	begin
5583	// create a seperator after Exit
5584	MenuItem:= TMenuItem.Create( self );
5585	MenuItem.Name := 'MRUSeparatorMI';
5586	MenuItem.Caption:= '-';
5587	FileMenu.Add( MenuItem );
5588	MRUMenuItems.Add( MenuItem );
5589	end;
5590
5591	// Add items for the MRU files
5592	for i:= 0 to Settings.MRUList.Count -1 do
5593	begin
5594	MRUItem := Settings.MRUList[ i ];
5595
5596	MenuItem := TMenuItem.Create( self );
5597
5598	MenuItem.Name := 'MRUItem' + IntToStr( i ) + 'MI';
5599	MRUText := MRUItem.Title;
5600	if Trim( MRUText ) = '' then
5601	begin
5602	// Take the filenames, less path, as caption...
5603	MRUText := '';
5604	for FileNameIndex := 0 to MRUItem.Filenames.Count - 1 do
5605	begin
5606	FileName := MRUItem.Filenames[ FileNameIndex ];
5607	FileName := ExtractFileName( FileName );
5608	FileName := ChangeFileExt( FileName, '' );// remove extension
5609	AddToListString( MRUText,
5610	FileName,
5611	'+' );
5612
5613	// stop after 50 chars
5614	if Length( MRUText ) > 50 then
5615	begin
5616	MRUText := MRUText + '+ ...';
5617	break;
5618	end;
5619	end;
5620	end;
5621
5622	MenuItem.Caption:= '~'
5623	+ IntToStr( i + 1 )
5624	+ '. '
5625	+ MRUText;
5626	if MRUItem.Filenames.Count = 1 then
5627	MenuItem.Hint := MRUItem.Filenames[ 0 ]
5628	else
5629	MenuItem.Hint := MRUItem.Title
5630	+ ' ('
5631	+ IntToStr( MRUItem.Filenames.Count )
5632	+ ' '
5633	+ MRUMultipleFilesHint
5634	+ ')';
5635
5636	MenuItem.OnClick:= OnMRUMenuItemClick;
5637	MenuItem.Tag:= i;
5638	FileMenu.Add( MenuItem );
5639	MRUMenuItems.Add( MenuItem );
5640	end;
5641	end;
5642
5643	procedure TMainForm.OnMRUMenuItemClick( Sender: TObject );
5644	var
5645	Tag: longint;
5646	MenuItem: TMenuItem;
5647	MRUItem: TMRUItem;
5648	begin
5649	MenuItem:= Sender as TMenuItem;
5650	Tag:= MenuItem.Tag;
5651	MRUItem := Settings.MRUList[ Tag ];
5652	if OpenFiles( MRUItem.FileNames, '', true ) then
5653	begin
5654	ClearHelpManager;
5655	end;
5656	end;
5657
5658	Procedure TMainForm.OnNavigateToMenuItemClick( Sender: TObject );
5659	var
5660	MenuItem: TMenuItem;
5661	Tag: longint;
5662	begin
5663	MenuItem:= Sender as TMenuItem;
5664	Tag:= MenuItem.Tag;
5665	NavigateToHistoryIndex( Tag );
5666	end;
5667
5668	Procedure TMainForm.AddChildNodes( HelpFile: THelpFile;
5669	ParentNode: TNode;
5670	Level: longint;
5671	Var TopicIndex: longint );
5672	var
5673	Topic: TTopic;
5674	Node: TNode;
5675	begin
5676	assert( ParentNode <> nil );
5677	Node := nil;
5678	while TopicIndex < HelpFile.TopicCount do
5679	begin
5680	Topic:= HelpFile.Topics[ TopicIndex ];
5681
5682	if Topic.ShowInContents then
5683	begin
5684	if Topic.ContentsLevel < Level then
5685	break;
5686
5687	if Topic.ContentsLevel = Level then
5688	begin
5689	Node:= ParentNode.AddChild( Topic.Title,
5690	Topic );
5691	inc( TopicIndex );
5692	end
5693	else
5694	begin
5695	assert( Node <> nil );
5696	AddChildNodes( HelpFile,
5697	Node,
5698	Topic.ContentsLevel,
5699	TopicIndex );
5700	Node := nil;
5701	end
5702	end
5703	else
5704	begin
5705	inc( TopicIndex );
5706	end;
5707	end;
5708
5709	end;
5710
5711	Procedure TMainForm.LoadContents( Files: TList;
5712	Var FirstNode: TNode );
5713	var
5714	TopicIndex: longint;
5715	Topic: TTopic;
5716	Node: TNode;
5717	FileIndex: longint;
5718	HelpFile: THelpFile;
5719	begin
5720	ContentsOutline.BeginUpdate;
5721	LogEvent(LogStartup, 'Load contents outline');
5722
5723	// we don't clear it first, to allow adding additional files
5724	// into the contents tree
5725
5726	LogEvent(LogStartup, 'Loop files');
5727
5728	FirstNode := nil;
5729
5730	Node := nil;
5731
5732	for FileIndex:= 0 to Files.Count - 1 do
5733	begin
5734	HelpFile := Files[ FileIndex ];
5735	LogEvent(LogStartup, 'File ' + IntToStr( FileIndex ) );
5736	TopicIndex := 0;
5737	while TopicIndex < HelpFile.TopicCount do
5738	begin
5739	Topic := HelpFile.Topics[ TopicIndex ];
5740	assert( Topic.ContentsLevel >= 0,
5741	'Topic contents level is ' + IntToStr( Topic.ContentsLevel ) );
5742	if Topic.ShowInContents then
5743	begin
5744	if Topic.ContentsLevel = 1 then
5745	begin
5746	Node := ContentsOutline.AddChild( Topic.Title,
5747	Topic );
5748	if FirstNode = nil then
5749	FirstNode := node;
5750
5751	inc( TopicIndex );
5752	end
5753	else
5754	begin
5755	// subnodes
5756	assert( Node <> nil, 'No level 1 topic for subnodes!' );
5757	AddChildNodes( HelpFile,
5758	Node,
5759	Topic.ContentsLevel,
5760	TopicIndex );
5761	Node := nil;
5762	end;
5763	end
5764	else
5765	begin
5766	inc( TopicIndex );
5767	end;
5768	end;
5769	end;
5770	LogEvent(LogStartup, ' EndUpdate' );
5771	ContentsOutline.EndUpdate;
5772
5773	if Settings.OpenWithExpandedContents then
5774	begin
5775	LogEvent(LogStartup, ' Expand all contents' );
5776	ContentsOutline.ExpandAll
5777	end
5778	else if ContentsOutline.ChildCount = 1 then
5779	begin
5780	LogEvent(LogStartup, ' Expand first node' );
5781	// Contents has only one top level node... expand it
5782	FirstNode.Expand;
5783	end;
5784
5785	ContentsLoaded := true;
5786	LogEvent(LogStartup, ' Contents loaded' );
5787
5788	end;
5789
5790	Procedure TMainForm.SaveNotesForFile( HelpFile: THelpFile );
5791	var
5792	NotesFileName: string;
5793	TopicIndex: longword;
5794	Note: THelpNote;
5795	NoteIndex: longint;
5796
5797	NotesFile: HFile;
5798	OpenAction: ULong;
5799	rc: APIRET;
5800	CName: Cstring;
5801	FileNoteCount: integer;
5802
5803	begin
5804	LogEvent(LogStartup, 'Save notes for ' + HelpFile.Filename );
5805
5806	if not HelpFile.NotesLoaded then
5807	// we never loaded the notes/displayed a topic from this file
5808	// so don't do anything.
5809	exit;
5810
5811	LogEvent(LogStartup, 'Really saving' );
5812
5813	NotesFileName := ChangeFileExt( HelpFile.FileName, '.nte' );
5814
5815	FileNoteCount := 0;
5816	for NoteIndex := 0 to Notes.Count - 1 do
5817	begin
5818	Note := Notes[ NoteIndex ];
5819
5820	if Note.Topic.HelpFile = HelpFile then
5821	inc( FileNoteCount );
5822	end;
5823
5824	if FileNoteCount = 0 then
5825	begin
5826	// no notes. delete notes file if it already exists.
5827	if FileExists( NotesFileName ) then
5828	DeleteFile( NotesFileName );
5829	exit;
5830	end;
5831
5832	CName:= NotesFileName;
5833	rc:= DosOpen( CName,
5834	NotesFile,
5835	OpenAction,
5836	0, // file size
5837	0, // attrs
5838	OPEN_ACTION_CREATE_IF_NEW + OPEN_ACTION_REPLACE_IF_EXISTS,
5839	OPEN_SHARE_DENYREADWRITE + OPEN_ACCESS_WRITEONLY,
5840	nil ); // no eas
5841	if rc <> 0 then
5842	begin
5843	DoErrorDlg( SaveNotesTitle,
5844	SaveNotesError
5845	+ EndLine
5846	+ NotesFileName
5847	+ EndLine
5848	+ SysErrorMessage( rc ) );
5849	exit;
5850	end;
5851
5852	for NoteIndex:= 0 to Notes.Count - 1 do
5853	begin
5854	Note:= Notes[ NoteIndex ];
5855
5856	if Note.Topic.HelpFile <> HelpFile then
5857	continue;
5858
5859	TopicIndex:= HelpFile.IndexOfTopic( Note.Topic );
5860
5861	MyWriteLn( NotesFile,
5862	IntToStr( TopicIndex ));
5863	MyWriteLn( NotesFile,
5864	IntToStr( Note.InsertPoint ) );
5865
5866	MyWrite( NotesFile,
5867	Note.Text.AsPChar,
5868	Note.Text.Length );
5869
5870	MyWriteLn( NotesFile,
5871	'' );
5872	MyWriteLn( NotesFile,
5873	'#ENDNOTE#' );
5874
5875	end;
5876
5877	DosClose( NotesFile );
5878	end;
5879
5880	Procedure TMainForm.LoadNotes( HelpFile: THelpFile );
5881	var
5882	NotesFileName: string;
5883	TopicIndex: longint;
5884	InsertPoint: longint;
5885	Note: THelpNote;
5886
5887	NotesFile: HFile;
5888	OpenAction: ULong;
5889	rc: APIRET;
5890	CName: Cstring;
5891
5892	Paragraph: TAString;
5893	NotEOF: boolean;
5894	NoteText: TAString;
5895
5896	begin
5897	LogEvent(LogStartup, 'Load notes for ' + HelpFile.Filename );
5898
5899	if HelpFile.NotesLoaded then
5900	exit;
5901
5902	HelpFile.NotesLoaded := true;
5903	NotesFileName := ChangeFileExt( HelpFile.FileName, '.nte' );
5904
5905	if not FileExists( NotesFileName ) then
5906	// no notes
5907	exit;
5908
5909	CName := NotesFileName;
5910	rc := DosOpen( CName,
5911	NotesFile,
5912	OpenAction,
5913	0, // file size - irrelevant, not creating,
5914	0, // attrs - ''
5915	OPEN_ACTION_OPEN_IF_EXISTS,
5916	OPEN_SHARE_DENYREADWRITE + OPEN_ACCESS_READONLY,
5917	nil ); // no eas
5918	if rc <> 0 then
5919	begin
5920	DoErrorDlg( LoadNotesTitle,
5921	LoadNotesError
5922	+ EndLine
5923	+ NotesFileName
5924	+ EndLine
5925	+ SysErrorMessage( rc ) );
5926	exit;
5927	end;
5928
5929	Paragraph := TAString.Create;
5930	NoteText := TAString.Create;
5931
5932	NotEOF := true;
5933
5934	while NotEOF do
5935	begin
5936	// Read contents index
5937	NotEOF := Paragraph.ReadParagraph( NotesFile );
5938	if not NotEOF then
5939	continue;
5940	try
5941	TopicIndex := StrToInt( Paragraph.AsString );
5942	except
5943	TopicIndex := -1;
5944	end;
5945
5946	// Read insert point
5947	NotEOF := Paragraph.ReadParagraph( NotesFile );
5948	if not NotEOF then
5949	continue;
5950	try
5951	InsertPoint := StrToInt( Paragraph.AsString );
5952	except
5953	InsertPoint := -1;
5954	end;
5955
5956	NoteText.Clear;
5957
5958	while NotEOF do
5959	begin
5960	NotEOF := Paragraph.ReadParagraph( NotesFile );
5961	if Paragraph.SameAs( '#ENDNOTE#' ) then
5962	begin
5963	// found end of note
5964	if ( TopicIndex >= 0 )
5965	and ( InsertPoint >= 0 ) then
5966	begin
5967	Note := THelpNote.Create;
5968	Note.Topic := HelpFile.Topics[ TopicIndex ];
5969	Note.InsertPoint := InsertPoint;
5970
5971	// Remove the last end line
5972	Note.Text.Assign( NoteText );
5973	if Note.Text.Length > 2 then
5974	Note.Text.Delete( Note.Text.Length - 2, 2 );
5975
5976	Notes.Add( Note );
5977	end;
5978	break;
5979	end;
5980	NoteText.Add( Paragraph );
5981	NoteText.AddString( #13 + #10 );
5982	end;
5983
5984	end;
5985	DosClose( NotesFile );
5986
5987	Paragraph.Destroy;
5988	NoteText.Destroy;
5989
5990	end;
5991
5992	Procedure TMainForm.UpdateNotesDisplay;
5993	var
5994	NoteIndex: longint;
5995	Note: THelpNote;
5996	NoteTitle: string;
5997	begin
5998	NotesListBox.Clear;
5999	for NoteIndex := 0 to Notes.Count - 1 do
6000	begin
6001	Note := Notes[ NoteIndex ];
6002
6003	if Note.Topic > nil then
6004	NoteTitle := Note.Topic.Title
6005	else
6006	NoteTitle := StrLeft( Note.Text.AsString, 100 );
6007	NotesListBox.Items.AddObject( NoteTitle,
6008	Note );
6009	end;
6010	EnableNotesControls;
6011	end;
6012
6013	Procedure TMainForm.EnableNotesControls;
6014	var
6015	NoteSelected: boolean;
6016	begin
6017	NoteSelected:= NotesListBox.ItemIndex <> -1;
6018	EditNoteButton.Enabled:= NoteSelected;
6019	GotoNoteButton.Enabled:= NoteSelected;
6020	DeleteNoteButton.Enabled:= NoteSelected;
6021	AddNoteButton.Enabled := CurrentOpenFiles.Count > 0;
6022	end;
6023
6024	Function TMainForm.OKToCloseFile: boolean;
6025	begin
6026	Result := true;
6027
6028	if PrintThread = nil then
6029	// haven't used print thread yet
6030	exit;
6031
6032	if not PrintThread.IsRunning then
6033	// not currently running
6034	exit;
6035
6036	Result := DoConfirmDlg( CheckStopPrintTitle,
6037	CheckStopPrintMsg );
6038
6039	end;
6040
6041	Procedure TMainForm.StopPrinting;
6042	begin
6043	if PrintThread <> nil then
6044	begin
6045	if PrintThread.IsRunning then
6046	begin
6047	SetStatus( StoppingPrintMsg );
6048	PrintThread.ForceStop( 5 ); // wait up to 5 seconds then terminate
6049	SetStatus( PrintStoppedMsg );
6050	ResetProgress;
6051	end;
6052	end;
6053	end;
6054
6055	Procedure TMainForm.CloseFile;
6056	var
6057	FileIndex: longint;
6058	HelpFile: THelpFile;
6059	M1: longint;
6060	begin
6061	StopPrinting;
6062
6063	LogEvent(LogShutdown, 'Set Caption' );
6064	MainTitle := '';
6065	SetMainCaption;
6066
6067	LogEvent(LogShutdown, 'Close Windows' );
6068	CloseWindows;
6069
6070	LogEvent(LogShutdown, 'Set selected node to nil' );
6071	ContentsOutline.SelectedNode:= Nil;
6072
6073	M1:= MemAvail;
6074
6075	LogEvent(LogShutdown, 'Clear contents outline' );
6076	ContentsOutline.Clear;
6077
6078	LogEvent(LogShutdown, 'Free contents: ' + IntToStr( MemAvail - M1 ) );
6079	M1:= MemAvail;
6080
6081	DisplayedIndex.Clear;
6082	IndexListBox.Clear;
6083	LogEvent(LogShutdown, 'Clear index ' + IntToStr( MemAvail - M1 ) );
6084	M1:= MemAvail;
6085
6086	NotesListBox.Clear;
6087	SearchResultsListBox.Clear;
6088
6089	LogEvent(LogShutdown, 'Notes, search etc ' + IntToStr( MemAvail - M1 ) );
6090	M1:= MemAvail;
6091
6092	// First save notes and bookmarks.
6093	// It's important we do this first
6094	// since we scan all notes each time to find the ones
6095	// belonging to this file.
6096	SaveBookmarks;
6097
6098	SaveNotes;
6099
6100	ClearAllWordSequences;
6101
6102	LogEvent(LogShutdown, 'Destroy helpfile objects' );
6103
6104	// Now destroy help files
6105	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
6106	begin
6107	HelpFile := CurrentOpenFiles[ FileIndex ];
6108	GlobalFilelist.RemoveFile( Frame.Handle,
6109	HelpFile.Filename );
6110	HelpFile.Free;
6111	end;
6112
6113	CurrentOpenFiles.Clear;
6114
6115	LogEvent(LogShutdown, 'Destroy helpfiles ' + IntToStr( MemAvail - M1 ) );
6116	M1 := MemAvail;
6117
6118	LogEvent(LogShutdown, 'Clear notes' );
6119	ClearNotes;
6120
6121	LogEvent(LogShutdown, 'Clear bookmarks' );
6122	ClearBookmarks;
6123
6124	ClearPageHistory;
6125
6126	LogEvent(LogShutdown, 'Enable controls' );
6127	EnableControls;
6128
6129	LogEvent(LogShutdown, 'CloseFile done' );
6130
6131	end;
6132
6133	Function TMainForm.FindOpenHelpFile( FileName: string ): THelpFile;
6134	var
6135	FileIndex: longint;
6136	begin
6137	for FileIndex:= 0 to CurrentOpenFiles.Count - 1 do
6138	begin
6139	Result:= CurrentOpenFiles[ FileIndex ];
6140	if StringsSame( Result.Filename, FileName ) then
6141	// found
6142	exit;
6143	end;
6144	Result:= nil;
6145	end;
6146
6147	// This rather horrendous looking bit of code simply:
6148
6149	// Gets the contents from each file
6150	// Sorts it alphabetically.
6151	// Merges all the sorted contents and indexes together,
6152	// alphabetically.
6153	type
6154	TListType = ( ltContents, ltIndex );
6155
6156	procedure TMainForm.LoadIndex;
6157	var
6158	HelpFile: THelpFile;
6159	TextCompareResult: integer;
6160
6161	FileIndex: longint;
6162
6163	Contents: TList;
6164	ContentsLists: TList; // of tlist
6165	IndexLists: TList; // of tstringlist
6166	ContentsNextIndex: array[ 0..255 ] of longint;
6167	IndexNextIndex: array[ 0..255 ] of longint;
6168	Topic: TTopic;
6169
6170	ListIndex: longint;
6171
6172	pListEntry: pstring;
6173	pLowestEntry: pstring;
6174	pLastEntry: pstring;
6175
6176	LowestEntryListIndex: longint;
6177	LowestEntryListType: TListType;
6178	LowestEntryTopic: TTopic;
6179
6180	Index: TStringList;
6181
6182	i : longint;
6183	begin
6184	LogEvent(LogStartup, 'Create index' );
6185
6186	SetWaitCursor;
6187
6188	LogEvent(LogStartup, ' Get/sort lists' );
6189
6190	ProgressBar.Position := 70;
6191	SetStatus( 'Building index... ' );
6192
6193	ContentsLists := TList.Create;
6194	IndexLists := TList.Create;
6195
6196	// collect the contents and index lists from the files
6197	for FileIndex := 0 to CurrentOpenFiles.Count - 1 do
6198	begin
6199	HelpFile := CurrentOpenFiles[ FileIndex ];
6200	ProgressBar.Position := 70 + 10 * FileIndex div CurrentOpenFiles.Count;
6201
6202	if Settings.IndexStyle in [ isAlphabetical, isFull ] then
6203	begin
6204	Contents := TList.Create;
6205	Contents.Capacity := HelpFile.TopicCount;
6206
6207	// copy [contents] topic list
6208	for i := 0 to HelpFile.TopicCount - 1 do
6209	begin
6210	Topic := HelpFile.Topics[ i ];
6211	if Topic.ShowInContents then
6212	Contents.Add( Topic );
6213	end;
6214
6215	// sort by title
6216	Contents.Sort( TopicTitleCompare );
6217
6218	ContentsLists.Add( Contents );
6219
6220	// initialise list index
6221	ContentsNextIndex[ ContentsLists.Count - 1 ] := 0;
6222	end;
6223
6224	if Settings.IndexStyle in [ isFileOnly, isFull ] then
6225	begin
6226	IndexLists.Add( HelpFile.Index );
6227	IndexNextIndex[ IndexLists.Count - 1 ] := 0;
6228	end;
6229	end;
6230
6231	// Unlike contents, we do clear the index
6232	// (even if we are adding more files) because we need
6233	// to re-merge the whole thing
6234	DisplayedIndex.Clear;
6235	ProgressBar.Position := 80;
6236
6237	LogEvent(LogStartup, ' Merge lists' );
6238
6239	pLastEntry := NullStr;
6240	while true do
6241	begin
6242	pLowestEntry := NullStr;
6243	LowestEntryListIndex := -1;
6244
6245	// Find alphabetically lowest (remaining) topic
6246
6247	// first, look in contents lists
6248	for ListIndex := 0 to ContentsLists.Count - 1 do
6249	begin
6250	Contents := ContentsLists[ ListIndex ];
6251	if ContentsNextIndex[ ListIndex ] < Contents.Count then
6252	begin
6253	// list is not yet finished, get next entry
6254	Topic := Contents[ ContentsNextIndex[ ListIndex ] ];
6255	pListEntry := Topic.TitlePtr;
6256
6257	if pLowestEntry^ <> '' then
6258	TextCompareResult := CompareText( pListEntry^, pLowestEntry^ )
6259	else
6260	TextCompareResult := -1;
6261
6262	if TextCompareResult < 0 then
6263	begin
6264	// this index entry comes before the lowest one so far
6265	pLowestEntry := pListEntry;
6266	LowestEntryListIndex := ListIndex;
6267	LowestEntryListType := ltContents;
6268	LowestEntryTopic := Topic;
6269	end;
6270	end;
6271	end;
6272
6273	// look in indices
6274	for ListIndex := 0 to IndexLists.Count - 1 do
6275	begin
6276	Index := IndexLists[ ListIndex ];
6277	if IndexNextIndex[ ListIndex ] < Index.Count then
6278	begin
6279	// list is not yet finished, get next entry
6280	pListEntry := Index.ValuePtrs[ IndexNextIndex[ ListIndex ] ];
6281
6282	if pLowestEntry^ <> '' then
6283	TextCompareResult := CompareText( pListEntry^, pLowestEntry^ )
6284	else
6285	TextCompareResult := -1;
6286
6287	if TextCompareResult < 0 then
6288	begin
6289	// this index entry comes before the lowest one so far
6290	pLowestEntry := pListEntry;
6291	LowestEntryListIndex := ListIndex;
6292	LowestEntryListType := ltIndex;
6293	LowestEntryTopic := TTopic( Index.Objects[ IndexNextIndex[ ListIndex ] ] );
6294	end;
6295	end;
6296	end;
6297
6298	if LowestEntryListIndex = -1 then
6299	// we're out
6300	break;
6301
6302	if ( pLowestEntry^ ) <> ( pLastEntry^ ) then
6303	// add, if different from last
6304	DisplayedIndex.AddObject( pLowestEntry^,
6305	LowestEntryTopic );
6306	pLastEntry := pLowestEntry;
6307
6308	if LowestEntryListType = ltContents then
6309	begin
6310	inc( ContentsNextIndex[ LowestEntryListIndex ] );
6311	end
6312	else
6313	begin
6314	// found in one of indices.
6315	// Check for subsequent indented strings
6316	Index := IndexLists[ LowestEntryListIndex ];
6317
6318	i := IndexNextIndex[ LowestEntryListIndex ] + 1;
6319	while i < Index.Count do
6320	begin
6321	pListEntry := Index.ValuePtrs[ i ];
6322	if pListEntry^ = '' then
6323	break;
6324
6325	if pListEntry^[ 1 ] <> ' ' then
6326	// not indented, stop looking
6327	break;
6328
6329	// found one,
6330	Topic := Index.Objects[ i ] as TTopic;
6331	DisplayedIndex.AddObject( pListEntry^,
6332	Topic );
6333	inc( i );
6334	end;
6335	IndexNextIndex[ LowestEntryListIndex ] := i;
6336	end;
6337	end;
6338
6339	ProgressBar.Position := 95;
6340	LogEvent(LogStartup, ' Display index (count = '
6341	+ IntToStr( DisplayedIndex.Count )
6342	+ ')' );
6343
6344	// Now display the final index list
6345	IndexListBox.Items.Assign( DisplayedIndex );
6346
6347	LogEvent(LogStartup, ' Tidy up' );
6348
6349	IndexLists.Destroy;
6350
6351	DestroyListAndObjects( ContentsLists );
6352
6353	IndexLoaded := true;
6354
6355	ClearWaitCursor;
6356
6357	SetStatus( 'Index loaded' );
6358	LogEvent(LogStartup, ' Done' );
6359	end;
6360
6361	Procedure TMainForm.OnHelpFileLoadProgress( n, outof: integer;
6362	message: string );
6363	var
6364	ProgressOnFiles: longint;
6365	Filename: string;
6366	ProgressOnThisFile: longint;
6367
6368	begin
6369	Filename := LoadingFilenameList[ LoadingFileIndex ];
6370
6371	ProgressOnFiles := round( 100 * LoadingFileIndex / LoadingFilenameList.Count );
6372	ProgressOnThisFile := round( 100 * n / outof / LoadingFilenameList.Count );
6373
6374	SetProgress( ( ProgressOnFiles + ProgressOnThisFile ) div 2,
6375	100,
6376	LoadingFileMsg
6377	+ ExtractFileName( Filename )
6378	+ ': '
6379	+ message );
6380	end;
6381
6382	Procedure TMainForm.SetProgress( n, outof: integer;
6383	message: string );
6384	begin
6385	ProgressBar.Position := n * 100 div outof;
6386	SetStatus( message );
6387	ProgressBar.Show;
6388	end;
6389
6390	// Load a single file.
6391	Function TMainForm.OpenFile( const FileName: string;
6392	const WindowTitle: string;
6393	const SelectFirstContentsNode: boolean ): boolean;
6394	var
6395	FileNames: TStringList;
6396	begin
6397	FileNames := TStringList.Create;
6398	FileNames.Add( FileName );
6399	Result := OpenFiles( FileNames,
6400	WindowTitle,
6401	DisplayFirstTopic );
6402	FileNames.Destroy;
6403	end;
6404
6405	Function TMainForm.OpenAdditionalFile( const FileName: string;
6406	const DisplayFirstTopic: boolean ): boolean;
6407	var
6408	FileNames: TStringList;
6409	begin
6410	FileNames := TStringList.Create;
6411	FileNames.Add( FileName );
6412	Result := OpenAdditionalFiles( FileNames,
6413	DisplayFirstTopic );
6414	FileNames.Destroy;
6415	end;
6416
6417	Function TMainForm.OpenWindowsHelp( const Filename: string ): boolean;
6418	var
6419	WinHelpDetails: PROGDETAILS;
6420	szFilename: cstring;
6421	begin
6422
6423	result := true;
6424	if Settings.ConfirmWinHelp then
6425	result := DoYesNoDlg( WindowsHelpTitle,
6426	WindowsHelpPrompt
6427	+ EndLine
6428	+ FileName );
6429	if not result then
6430	exit;
6431
6432	szFilename := FileName;
6433	with WinHelpDetails do
6434	begin
6435	Length := sizeof( WinHelpDetails );
6436	progt.progc := PROG_31_ENHSEAMLESSCOMMON ;
6437	progt.fbVisible := SHE_VISIBLE;
6438	pszTitle := ''; // not used?
6439	pszExecutable := 'winhelp.exe';
6440	pszParameters := Addr( szFilename );
6441	pszStartupDir := nil;
6442	pszIcon := nil;
6443	pszEnvironment := nil;
6444	swpInitial.fl := SWP_ACTIVATE or SWP_SHOW;
6445	end;
6446
6447	result := WinStartApp( NULLHANDLE,
6448	WinHelpDetails,
6449	'',
6450	nil,
6451	SAF_INSTALLEDCMDLINE ) <> 0;
6452
6453	// Doesn't work for Dos/Win programs
6454	// RunProgram( 'winhelp.exe', FileName );
6455	end;
6456
6457	// Load the specified set of help files
6458	Function TMainForm.LoadFiles( const FileNames: TStrings;
6459	HelpFiles: TList ): boolean;
6460	var
6461	HelpFile: THelpFile;
6462	FileIndex: longint;
6463	FileName: string;
6464	FullFilePath: string;
6465
6466	FileHandlesAdjustNum: LONG;
6467	CurrentMaxFileHandles: ULONG;
6468	RequiredFileHandles: LONG;
6469	begin
6470	LogEvent(LogStartup, 'LoadFiles' );
6471
6472	LoadingFilenameList := TStringList.Create;
6473
6474	TranslateIPFEnvironmentVars( FileNames, LoadingFilenameList );
6475
6476	LogEvent(LogStartup, 'Finding files' );
6477
6478	ProgressBar.Show;
6479
6480	// now find full file paths,
6481	// and also the total file size for progress display
6482	for FileIndex := 0 to LoadingFilenameList.Count - 1 do
6483	begin
6484	FileName := LoadingFilenameList[ FileIndex ];
6485	LogEvent(LogStartup, ' File: ' + FileName );
6486
6487	// Find the help file, if possible
6488	FullFilePath := FindHelpFile( Filename );
6489	if FullFilePath <> '' then
6490	begin
6491	LogEvent(LogStartup, ' Full path: ' + FullFilePath );
6492	end
6493	else
6494	begin
6495	LogEvent(LogStartup, ' File not found' );
6496	FullFilePath := FileName; // we'll complain later.
6497	end;
6498	LoadingFilenameList[ FileIndex ] := FullFilePath;
6499	end;
6500
6501	// Make sure we have enough file handles
6502
6503	FileHandlesAdjustNum := 0;
6504	DosSetRelMaxFH( FileHandlesAdjustNum, // 0 queries current
6505	CurrentMaxFileHandles );
6506
6507	RequiredFileHandles := CurrentOpenFiles.Count // already opened
6508	+ LoadingFilenameList.Count // new ones
6509	+ 40; // some spares.
6510	if CurrentMaxFileHandles < RequiredFileHandles then
6511	begin
6512	// need some more
6513	FileHandlesAdjustNum := RequiredFileHandles - CurrentMaxFileHandles;
6514	DosSetRelMaxFH( FileHandlesAdjustNum,
6515	CurrentMaxFileHandles );
6516	end;
6517
6518	// Now actually load the files
6519	for FileIndex := 0 to LoadingFilenameList.Count - 1 do
6520	begin
6521	Filename := LoadingFilenameList[ FileIndex ];
6522	LogEvent(LogStartup, ' Loading: ' + Filename );
6523	try
6524	LoadingFileIndex := FileIndex;
6525
6526	// load the file
6527	HelpFile := THelpFile.Create( FileName );
6528	if Settings.FixedFontSubstitution then
6529	HelpFile.SetupFontSubstitutes( Settings.FixedFontSubstitutes );
6530
6531	HelpFiles.Add( HelpFile );
6532
6533	except
6534	on E: Exception do
6535	begin
6536
6537	if E is EWindowsHelpFormatException then
6538	begin
6539	OpenWindowsHelp( Filename );
6540	end
6541	else
6542	begin
6543	DoErrorDlg( FileOpenTitle,
6544	HelpFileError
6545	+ FileName
6546	+ ': '
6547	+ E.Message );
6548	end;
6549
6550	// back out of the load process
6551	Result := false;
6552
6553	DestroyListObjects( HelpFiles );
6554
6555	LoadingFilenameList.Destroy;
6556	ResetProgress;
6557	exit;
6558	end
6559	end;
6560	end;
6561
6562	LoadingFilenameList.Destroy;
6563
6564	Result := true;
6565
6566	end;
6567
6568	// Add the current list of open files as
6569	// a Most Recently Used entry
6570	Procedure TMainForm.AddCurrentToMRUFiles;
6571	var
6572	Filenames: TStringList;
6573	i: longint;
6574	HelpFile: THelpFile;
6575	begin
6576	Filenames := TStringList.Create;
6577
6578	for i := 0 to CurrentOpenFiles.Count - 1 do
6579	begin
6580	HelpFile := CurrentOpenFiles[ i ];
6581	Filenames.Add( HelpFile.Filename );
6582	end;
6583
6584	// update most-recently-used file list
6585	HelpFile := CurrentOpenFiles[ 0 ];
6586	AddToMRUList( HelpFile.Title,
6587	Filenames );
6588
6589	// recreate menu
6590	CreateMRUMenuItems;
6591
6592	Filenames.Destroy;
6593	end;
6594
6595	// Display the specified set of files
6596	Procedure TMainForm.DisplayFiles( NewFiles: TList;
6597	Var FirstContentsNode: TNode );
6598	var
6599	HelpFile: THelpFile;
6600	FileIndex: longint;
6601	begin
6602	LogEvent(LogStartup, 'DisplayFiles' );
6603	// Now load the various parts of the file(s)
6604	// into the user interface
6605	ProgressBar.Position := 50;
6606	SetStatus( LoadingStatusDisplaying );
6607
6608	// Add our open files in the global filelist
6609	for FileIndex := 0 to NewFiles.Count - 1 do
6610	begin
6611	HelpFile := NewFiles[ FileIndex ];
6612	GlobalFilelist.AddFile( HelpFile.Filename, Frame.Handle );
6613	// LoadNotes( HelpFile );
6614	LoadBookmarks( HelpFile );
6615	end;
6616
6617	UpdateNotesDisplay;
6618
6619	BuildBookmarksMenu;
6620	UpdateBookmarksForm;
6621
6622	ProgressBar.Position := 55;
6623
6624	ContentsLoaded := false;
6625	IndexLoaded := false;
6626
6627	LoadContents( NewFiles, FirstContentsNode );
6628
6629	ProgressBar.Position := 75;
6630
6631	// LoadIndex;
6632
6633	ProgressBar.Position := 100;
6634	SetStatus( LoadingStatusDone );
6635
6636	LogEvent(LogStartup, 'DisplayFiles Done' );
6637
6638	end;
6639
6640	Function TMainForm.OpenFiles( const FileNames: TStrings;
6641	const WindowTitle: string;
6642	const DisplayFirstTopic: boolean ): boolean;
6643	var
6644	HelpFiles: TList;
6645	FirstContentsNode: TNode;
6646	begin
6647	LogEvent(LogStartup, 'OpenFiles' );
6648
6649	if not OKToCloseFile then
6650	exit;
6651
6652	SetWaitCursor;
6653
6654	HelpFiles := TList.Create;
6655
6656	if not LoadFiles( FileNames,
6657	HelpFiles ) then
6658	begin
6659	ClearWaitCursor;
6660	HelpFiles.Destroy;
6661	exit;
6662	end;
6663
6664	Result := true;
6665
6666	SearchResultsListBox.Clear;
6667	PageHistory.Clear;
6668	CurrentHistoryIndex := -1;
6669
6670	// Now that we have successfully loaded the new help file(s)
6671	// close the existing one.
6672	CloseFile;
6673
6674	AssignList( HelpFiles, CurrentOpenFiles );
6675
6676	ProgressBar.Position := 50;
6677	SetStatus( LoadingStatusDisplaying );
6678
6679	AddCurrentToMRUFiles;
6680
6681	if WindowTitle = '' then
6682	MainTitle := THelpFile( CurrentOpenFiles[ 0 ] ).Title
6683	else
6684	MainTitle := WindowTitle;
6685
6686	SetMainCaption;
6687
6688	// Now load the various parts of the file(s)
6689	// into the user interface
6690
6691	ContentsOutline.Clear;
6692
6693	DisplayFiles( HelpFiles,
6694	FirstContentsNode );
6695
6696	if CmdLineParameters.getHelpManagerFlag then
6697	ShowLeftPanel := Settings.ShowLeftPanel_Help
6698	else
6699	ShowLeftPanel := Settings.ShowLeftPanel_Standalone;
6700
6701	// Select first contents node if there is one
6702	if FirstContentsNode <> nil then
6703	begin
6704	LogEvent(LogStartup, ' Select first node' );
6705	ContentsOutline.SelectedNode := FirstContentsNode;
6706	end;
6707
6708	ClearWaitCursor;
6709
6710	ResetProgress;
6711
6712	NotebookOnPageChanged( self ); // ensure e.g. index loaded
6713
6714	EnableControls;
6715
6716	if DisplayFirstTopic then
6717	begin
6718	LogEvent(LogStartup, 'Display first topic' );
6719	DisplaySelectedContentsTopic;
6720	end;
6721
6722	LogEvent(LogStartup, 'OpenFiles complete' );
6723	end;
6724
6725	Function TMainForm.OpenAdditionalFiles( const FileNames: TStrings;
6726	const DisplayFirstTopic: boolean ): boolean;
6727	var
6728	HelpFiles: TList;
6729	FirstNewContentsNode: TNode;
6730	begin
6731	LogEvent(LogStartup, 'OpenAdditionalFiles' );
6732
6733	if not OKToCloseFile then
6734	exit;
6735
6736	SetWaitCursor;
6737
6738	HelpFiles := TList.Create;
6739
6740	if not LoadFiles( FileNames,
6741	HelpFiles ) then
6742	begin
6743	ClearWaitCursor;
6744	HelpFiles.Destroy;
6745	exit;
6746	end;
6747
6748	Result := true;
6749
6750	AddList( HelpFiles, CurrentOpenFiles );
6751
6752	AddCurrentToMRUFiles;
6753
6754	DisplayFiles( HelpFiles,
6755	FirstNewContentsNode );
6756
6757	// Select first contents node of new file
6758	if FirstNewContentsNode <> nil then
6759	ContentsOutline.SelectedNode := FirstNewContentsNode;
6760
6761	HelpFiles.Destroy;
6762
6763	ClearWaitCursor;
6764
6765	ResetProgress;
6766
6767	EnableControls;
6768
6769	if DisplayFirstTopic then
6770	DisplaySelectedContentsTopic;
6771
6772	LogEvent(LogStartup, 'OpenAdditionalFiles complete' );
6773	end;
6774
6775	Procedure TMainForm.OpenMIOnClick (Sender: TObject);
6776	Begin
6777	FileOpen;
6778	end;
6779
6780	procedure TMainForm.FileOpen;
6781	var
6782	Filenames: TStringList;
6783	KeepCurrentFiles: boolean;
6784	OpenedOK: boolean;
6785	begin
6786	if not OKToCloseFile then
6787	exit;
6788
6789	if Settings.UseOriginalDialogs then
6790	begin
6791	SystemOpenDialog.Filename := AddSlash( Settings.LastOpenDirectory ) + '.hlp;.inf';
6792	if not SystemOpenDialog.Execute then
6793	exit;
6794
6795	Settings.LastOpenDirectory := ExtractFilePath( SystemOpenDialog.Filename );
6796	// note - sibyl's encapsulation doesn't allow multi-select
6797	OpenedOK := OpenFile( SystemOpenDialog.FileName, '', true );
6798	end
6799	else
6800	begin
6801	Filenames := TStringList.Create;
6802	KeepCurrentFiles := false;
6803	if not DoOpenMultiFileDialog( FileOpenTitle,
6804	HelpFilesDesc
6805	+ '\|.inf;.hlp\|'
6806	+ AllFilesDesc
6807	+ '\|.',
6808	'.hlp;.inf',
6809	Settings.LastOpenDirectory,
6810	KeepCurrentFiles,
6811	Filenames ) then
6812	exit;
6813
6814	if KeepCurrentFiles then
6815	OpenedOK := OpenAdditionalFiles( FileNames, true )
6816	else
6817	OpenedOK := OpenFiles( FileNames, '', true );
6818	Filenames.Destroy;
6819	end;
6820
6821	if OpenedOK then
6822	ClearHelpManager;
6823	End;
6824
6825	Procedure TMainForm.CloseWindows;
6826	Begin
6827	DestroyListObjects( Windows );
6828	Windows.Clear;
6829	end;
6830
6831	// Help manager mode
6832
6833	// if window is minimised then restore it
6834	// (ideally should go back to maximized - don't know how)
6835	Procedure TMainForm.RestoreWindow;
6836	Begin
6837	If WindowState = wsMinimized then
6838	WindowState := wsNormal;
6839	end;
6840
6841	Procedure TMainForm.NHMDisplayIndex( Var Msg: TMessage );
6842	begin
6843	RestoreWindow;
6844	DisplayIndex;
6845	// if nothing is being display already...
6846	if Windows.Count = 0 then
6847	// display first topic
6848	DisplaySelectedContentsTopic;
6849	end;
6850
6851	Procedure TMainForm.NHMDisplayContents( Var Msg: TMessage );
6852	begin
6853	RestoreWindow;
6854	DisplayContents;
6855	// if nothing is being display already...
6856	if Windows.Count = 0 then
6857	// display first topic
6858	DisplaySelectedContentsTopic;
6859	end;
6860
6861	Procedure TMainForm.NHMTopicByResourceID( Var Msg: TMessage );
6862	begin
6863	RestoreWindow;
6864	DisplayTopicByResourceID( Msg.Param1 );
6865	end;
6866
6867	Procedure TMainForm.NHMTopicByPanelName( Var Msg: TMessage );
6868	var
6869	pMessageMem: pchar;
6870	PanelName: string;
6871	Topic: TTopic;
6872	begin
6873	RestoreWindow;
6874
6875	pMessageMem := pchar( Msg.Param1 );
6876	PanelName := StrPas( pMessageMem );
6877	SharedMemory.Free( pMessageMem );
6878
6879	Topic := FindTopicByName( PanelName );
6880	if Topic = nil then
6881	Topic := FindTopicByGlobalName( PanelName );
6882
6883	if Topic <> nil then
6884	DisplayTopic( Topic )
6885	else
6886	SearchFor( PanelName );
6887	end;
6888
6889	// Sent from other instances starting up (and exiting immediately)
6890
6891	Procedure TMainForm.NHMSearch( Var Msg: TMessage );
6892	var
6893	pSearchText: pchar;
6894	begin
6895	RestoreWindow;
6896
6897	pSearchText := pstring( Msg.Param1 );
6898	SearchFor( StrPas( pSearchText ) );
6899	SharedMemory.Free( pSearchText );
6900	end;
6901
6902	Procedure TMainForm.NHMGlobalSearch( Var Msg: TMessage );
6903	var
6904	pSearchText: pchar;
6905	begin
6906	RestoreWindow;
6907
6908	pSearchText := pstring( Msg.Param1 );
6909	DoGlobalSearch( StrPas( pSearchText ) );
6910	SharedMemory.Free( pSearchText );
6911	end;
6912
6913	Procedure TMainForm.NHMShowUsage( Var Msg: TMessage );
6914	begin
6915	RestoreWindow;
6916	ShowUsage;
6917	end;
6918
6919	Procedure TMainForm.NHMSetFiles( Var Msg: TMessage );
6920	var
6921	pFileNames: pchar;
6922	begin
6923	// NOT restoring window here because this is not something the user should see...
6924	pFileNames := pstring( Msg.Param1 );
6925	OpenFilesFromTextList( StrPas( pFileNames ), false );
6926	SharedMemory.Free( pFileNames );
6927	end;
6928
6929	Procedure TMainForm.NHMSetTitle( Var Msg: TMessage );
6930	var
6931	pTitle: pchar;
6932	begin
6933	pTitle := pstring( Msg.Param1 );
6934	MainTitle := StrPas( pTitle );
6935	SharedMemory.Free( pTitle );
6936
6937	SetMainCaption;
6938	end;
6939
6940	Procedure TMainForm.NHMTest( Var Msg: TMessage );
6941	var
6942	ps: pstring;
6943	begin
6944	ps := PString( Msg.Param1 );
6945	ShowMessage( 'Got test message: ' + ps^ );
6946	SharedMemory.Free( ps );
6947	end;
6948
6949	Initialization
6950	RegisterClasses ([TMainForm, TSplitBar,
6951	TNoteBook,
6952	TEdit, TListBox,
6953	TRichTextView, TCoolBar2, TMainMenu, TMenuItem,
6954	TImageList, TPanel, TButton,
6955	TSystemOpenDialog, TOutline2, TCustomListBox, TPopupMenu, TSpeedButton
6956	, TProgressBar, TTabSet2]);
6957	End.

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