source: trunk/NewView/SettingsUnit.pas@ 76

Last change on this file since 76 was 43, checked in by RBRi, 19 years ago

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1Unit SettingsUnit;
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
7Interface
8
9// Defines settings (options) in a record and contains functions
10// for loading and saving them to ini file.
11
12Uses
13 Forms,
14 Classes;
15
16Const
17 ContentsBackgroundColorIndex = 0;
18 ContentsTextColorIndex = 1;
19 ContentsLinesColorIndex = 2;
20 IndexBackgroundColorIndex = 3;
21 IndexTextColorIndex = 4;
22 SearchBackgroundColorIndex = 5;
23 SearchTextColorIndex = 6;
24 NotesListBackgroundColorIndex = 7;
25 NotesListTextColorIndex = 8;
26 TopicBackgroundColorIndex = 9;
27 NotesTextColorIndex = 10;
28 SearchHighlightTextColorIndex = 11;
29 NumColorSettings = 12;
30
31 clLightYellow = $ffffc0;
32 clLightBlue = $e0e0ff;
33 clLightCyan = $c0ffff;
34 clLightGreen = $e0ffe0;
35
36 VGADefaultColors: array[ 0 .. NumColorSettings - 1 ] of TColor
37 = ( clWindow,
38 clWindowText,
39 clWindowText,
40 clWindow,
41 clWindowText,
42 clWindow,
43 clWindowText,
44 clWindow,
45 clWindowText,
46 clWindow,
47 clGreen,
48 clYellow );
49
50 DefaultColors: array[ 0 .. NumColorSettings - 1 ] of TColor
51 = ( clLightCyan,
52 clBlack,
53 clBlue,
54 clLightGreen,
55 clBlack,
56 clLightBlue,
57 clBlack,
58 clWhite,
59 clBlack,
60 clWhite,
61 clGreen,
62 clYellow );
63
64 ApplicationFontIndex = 0;
65 NumFontSettings = 1;
66
67 DefaultTopicFontName = 'Helv';
68 DefaultTopicFontSize = 8;
69
70 DefaultTopicFixedFontName = 'Courier';
71 DefaultTopicFixedFontSize = 8;
72
73Type
74 TIndexStyle = ( isFileOnly, isAlphabetical, isFull );
75 TToolbarStyle = ( tsNone, tsImages, tsText, tsImagesAndText );
76 TGlobalSearchLocation = ( gsHelpPaths, gsFixedDrives, gsSelectedHelpPaths, gsCustom );
77
78 TMRUItem = class
79 Title: string;
80 Filenames: TStringList;
81 constructor Create;
82 destructor Destroy; override;
83 end;
84
85 TSettings = record
86 MRUList: TList;
87
88 LastOpenDirectory: string;
89 LastSaveDirectory: string;
90
91 StartupHelp: boolean;
92
93 LeftPanelWidth: longint;
94 ShowLeftPanel_Help: boolean;
95 ShowLeftPanel_Standalone: boolean;
96
97 FileDialogSplit: real;
98
99 // COlours
100 Colors: array[ 0..NumColorSettings - 1 ] of TColor;
101
102 NormalFont: TFont;
103 FixedFont: TFont;
104 Fonts: array[ 0..NumFontSettings - 1 ] of TFont;
105 FixedFontSubstitution: boolean;
106 FixedFontSubstitutes: string;
107
108 IndexStyle: TIndexStyle;
109
110 SmoothScrolling: boolean;
111 UseOriginalDialogs: boolean;
112 OpenWithExpandedContents: boolean;
113
114 ToolbarBackgroundImageFilename: string;
115 ToolbarStyle: TToolbarStyle;
116
117 ConfirmWinHelp: boolean;
118
119 GlobalSearchLocation: TGlobalSearchLocation;
120
121 SearchDirectories: TStringList;
122 end;
123
124 Procedure WriteWindowPos( Form: TForm );
125 Procedure ReadWindowPos( Form: TForm );
126 Procedure LoadSettings;
127 Procedure SaveSettings;
128
129Procedure AddToMRUList( const Title: string;
130 Filenames: TStrings );
131
132Var
133 Settings: TSettings;
134
135Implementation
136
137Uses
138 SysUtils,
139 DebugUnit,
140 Dos,
141 ACLFileUtility,
142 ACLUtility,
143 ACLStringUtility,
144 ControlsUtility;
145
146Const
147 IniFileName = 'NewView.ini';
148 GeneralSection = 'General';
149 FontsSection = 'Fonts';
150 ColoursSection = 'Colours';
151 MRUSection = 'RecentFiles';
152 MRUItemBaseSection = 'RecentFile';
153 SearchSection = 'Search';
154
155 DefaultWidth = 620;
156 DefaultHeight = 460;
157
158 MaxMRUListEntries = 9;
159
160constructor TMRUItem.Create;
161begin
162 Title := '';
163 Filenames := TStringList.Create;
164end;
165
166destructor TMRUItem.Destroy;
167begin
168 Filenames.Destroy;
169end;
170
171Function IniFilePath: string;
172Var
173 Dir: string;
174 Name, Ext: string;
175 UserIniFile: string;
176Begin
177 // Put it in the same place as the application
178 UserIniFile := GetApplicationDir;
179 // Note: do NOT combine these two steps. Caused an obscure bug!
180 FSplit( UserIniFile, Dir, Name, Ext );
181 Result := AddSlash( Dir ) + IniFileName;
182End;
183
184// Note: since Sibyl SPCC 2.1.8.3
185// the Ascii ini file constructor does not throw an exception
186procedure GetIniFile( Var IniFile: TMyIniFile );
187begin
188 IniFile := TMyIniFile.Create( IniFilePath );
189end;
190
191procedure CloseIniFile( Var IniFIle: TMyIniFile );
192begin
193 try
194 LogEvent(LogSettings, 'Calling IniFile.Destroy');
195 IniFile.Destroy;
196 except
197 on E: Exception do
198 begin
199 // don't care if we can't save settings.
200 LogEvent(LogSettings, ' Exception: ' + E.Message );
201 end;
202 end;
203end;
204
205Procedure LoadSettings;
206Var
207 IniFile: TMyIniFile;
208 ColorIndex: longint;
209 DefaultColor: TColor;
210 FontName: string;
211 SettingString: string;
212
213 MRUItem: TMRUItem;
214 MRUItemSection: string;
215 MRUItemFileCount: longint;
216 MRUItemFileIndex: longint;
217 i: longint;
218 Count: longint;
219 MRUFilename: string;
220 MRUFileTitle: string;
221Begin
222 GetIniFile( IniFile );
223 with IniFile do
224 begin
225 IniFile.EraseSection( 'Windows' );
226 with Settings do
227 begin
228 LastOpenDirectory := ReadString( GeneralSection, 'LastOpenDirectory', '' );
229 LastSaveDirectory := ReadString( GeneralSection, 'LastSaveDirectory', '' );
230
231 // Read split points, as units of 0.1%
232 LeftPanelWidth := ReadInteger( GeneralSection, 'LeftPanelWidth', 225 );
233 FileDialogSplit := ReadInteger( GeneralSection, 'FileDialogSplit', 500 ) / 1000;
234
235 ShowLeftPanel_Help := ReadBool( GeneralSection, 'ShowLeftPanel_Help', false );
236 ShowLeftPanel_Standalone := ReadBool( GeneralSection, 'ShowLeftPanel_Standalone', true );
237
238 // Colours
239 for ColorIndex := 0 to High( Colors ) do
240 begin
241 if GetScreenColorDepth > 8 then
242 DefaultColor := DefaultColors[ ColorIndex ]
243 else
244 DefaultColor := VGADefaultColors[ ColorIndex ];
245 Colors[ ColorIndex ] := ReadInteger( ColoursSection,
246 'Color' + IntToStr( ColorIndex ),
247 DefaultColor );
248 end;
249
250 // Most Recently Used files list...
251
252 Count := ReadInteger( MRUSection,
253 'Count',
254 0 );
255
256 // Old style MRU list
257 for i := 0 to Count - 1 do
258 begin
259 MRUFilename := ReadString( MRUSection,
260 'File' + IntToStr( i ),
261 '' );
262 MRUFileTitle := ReadString( MRUSection,
263 'Title' + IntToStr( i ),
264 '' );
265 if MRUFilename <> '' then
266 begin
267 MRUItem := TMRUItem.Create;
268 MRUItem.Title := MRUFileTitle;
269 StringToList( MRUFilename,
270 MRUItem.Filenames,
271 '+' );
272 MRUList.Add( MRUItem );
273 end;
274 end;
275
276 // New style
277 for i := 0 to Count - 1 do
278 begin
279 MRUItemSection := MRUItemBaseSection + IntToStr( i );
280
281 MRUItem := TMRUItem.Create;
282
283 MRUItem.Title := ReadString( MRUItemSection,
284 'Title',
285 '' );
286
287 MRUItemFileCount := ReadInteger( MRUItemSection,
288 'FileCount',
289 0 );
290 for MRUItemFileIndex := 0 to MRUItemFileCount - 1 do
291 begin
292 MRUFilename := ReadString( MRUItemSection,
293 'File' + IntToStr( MRUItemFileIndex ),
294 '' );
295 if MRUFilename <> '' then
296 begin
297 MRUItem.Filenames.Add( MRUFilename );
298 end;
299 end;
300
301 if ( MRUItem.Title <> '' )
302 and ( MRUItem.Filenames.Count > 0 ) then
303 begin
304 // valid MRU item
305 MRUList.Add( MRUItem );
306 end
307 else
308 begin
309 // not valid
310 MRUItem.Destroy;
311 MRUItem := nil;
312 end;
313
314 end;
315
316 // Fonts
317 NormalFont := Screen.GetFontFromPointSize(
318 ReadString( FontsSection, 'NormalFont', DefaultTopicFontName ),
319 ReadInteger( FontsSection, 'NormalFontSize', DefaultTopicFontSize ) );
320 if NormalFont = nil then
321 NormalFont := Screen.DefaultFont;
322
323 FixedFont := Screen.GetFontFromPointSize(
324 ReadString( FontsSection, 'FixedFont', DefaultTopicFixedFontName ),
325 ReadInteger( FontsSection, 'FixedFontSize', DefaultTopicFixedFontSize ) );
326 if FixedFont = nil then
327 FixedFont := Screen.DefaultFont;
328
329 for i := 0 to NumFontSettings - 1 do
330 begin
331 FontName := 'Font' + IntToStr( i );
332 Fonts[ i ] := nil;
333 if ReadBool( FontsSection,
334 FontName
335 + 'Customised',
336 false ) then
337 Fonts[ i ] := Screen.GetFontFromPointSize(
338 ReadString( FontsSection, FontName + 'Face', DefaultTopicFontName ),
339 ReadInteger( FontsSection, FontName + 'Size', 10 ) );
340 end;
341
342 FixedFontSubstitution := ReadBool( FontsSection, 'FixedFontSubstitution', true );
343 FixedFontSubstitutes := ReadString( FontsSection, 'FixedFontSubstitutes', 'Courier 18x12' );
344
345 // Index style
346 SettingString := ReadString( GeneralSection, 'IndexStyle', 'Full' );
347 if StringsSame( SettingString, 'FileOnly' ) then
348 IndexStyle := isFileOnly
349 else if StringsSame( SettingString, 'Alphabetical' ) then
350 IndexStyle := isAlphabetical
351 else
352 IndexStyle := isFull;
353
354 StartupHelp := ReadBool( GeneralSection, 'StartupHelp', true );
355
356 SmoothScrolling := ReadBool( GeneralSection, 'SmoothScrolling', true );
357 UseOriginalDialogs := ReadBool( GeneralSection, 'UseOriginalDialogs', false );
358 OpenWithExpandedContents := ReadBool( GeneralSection, 'OpenWithExpandedContents', false );
359
360 ToolBarBackgroundImageFilename := ReadString( GeneralSection, 'ToolbarBackground', '' );
361 SettingString := ReadString( GeneralSection, 'ToolbarStyle', 'ImagesAndText' );
362
363 if StringsSame( SettingString, 'None' ) then
364 ToolbarStyle := tsNone
365 else if StringsSame( SettingString, 'Images' ) then
366 ToolbarStyle := tsImages
367 else if StringsSame( SettingString, 'Text' ) then
368 ToolbarStyle := tsText
369 else
370 ToolbarStyle := tsImagesAndText;
371
372 ConfirmWinHelp := ReadBool( GeneralSection, 'ConfirmWinHelp', true );
373
374 Count := ReadInteger( SearchSection,
375 'CustomDirCount',
376 0 );
377
378 SearchDirectories.Clear;
379 for i := 0 to Count - 1 do
380 begin
381 SettingString := ReadString( SearchSection,
382 'CustomDir' + IntToStr( i ),
383 '' );
384 if trim( SettingString ) <> '' then
385 SearchDirectories.Add( SettingString );
386 end;
387
388 SettingString := ReadString( SearchSection,
389 'Location',
390 'HelpPaths' );
391 if StringsSame( SettingString, 'HelpPaths' ) then
392 GlobalSearchLocation := gsHelpPaths
393 else if StringsSame( SettingString, 'FixedDrives' ) then
394 GlobalSearchLocation := gsFixedDrives
395 else if StringsSame( SettingString, 'SelectedHelpPaths' ) then
396 GlobalSearchLocation := gsSelectedHelpPaths
397 else
398 GlobalSearchLocation := gsCustom;
399
400 end;
401 end;
402 CloseIniFile( IniFile );
403End;
404
405Procedure SaveSettings;
406Var
407 IniFile: TMyIniFile;
408 ColorIndex: longint;
409 FontIndex: longint;
410 FontName: string;
411 i: longint;
412 MRUItemFileIndex: longint;
413 SettingString: string;
414 MRUItem: TMRUItem;
415 MRUItemSection: string;
416
417Begin
418 LogEvent(LogSettings, 'SaveSettings' );
419 GetIniFile( IniFile );
420 with IniFile do
421 begin
422 with Settings do
423 begin
424 WriteString( GeneralSection, 'LastOpenDirectory', LastOpenDirectory );
425 WriteString( GeneralSection, 'LastSaveDirectory', LastSaveDirectory );
426
427 WriteInteger( GeneralSection, 'LeftPanelWidth', LeftPanelWidth );
428 // Write split points, as units of 0.1%
429 WriteInteger( GeneralSection, 'FileDialogSplit', Round( FileDialogSplit * 1000 ) );
430
431 WriteBool( GeneralSection, 'ShowLeftPanel_Help', ShowLeftPanel_Help );
432 WriteBool( GeneralSection, 'ShowLeftPanel_Standalone', ShowLeftPanel_Standalone );
433
434 // COlours
435 for ColorIndex := 0 to High( Colors ) do
436 WriteInteger( ColoursSection,
437 'Color' + IntToStr( ColorIndex ),
438 Colors[ ColorIndex ] );
439
440 EraseSection( MRUSection ); // get rid of old style MRU
441 WriteInteger( MRUSection,
442 'Count',
443 MRUList.Count );
444
445 for i := 0 to MRUList.Count - 1 do
446 begin
447 MRUItem := MRUList[ i ];
448
449 MRUItemSection := MRUItemBaseSection + IntToStr( i );
450 EraseSection( MRUItemSection );
451
452 WriteString( MRUItemSection,
453 'Title',
454 MRUItem.Title );
455
456 WriteInteger( MRUItemSection,
457 'FileCount',
458 MRUItem.Filenames.Count );
459
460 for MRUItemFileIndex := 0 to MRUItem.Filenames.Count - 1 do
461 WriteString( MRUItemSection,
462 'File' + IntToStr( MRUItemFileIndex ),
463 MRUItem.Filenames[ MRUItemFileIndex ] );
464 end;
465
466 // clear unused sections
467 for i := MRUList.Count to MaxMRUListEntries do
468 begin
469 MRUItemSection := MRUItemBaseSection + IntToStr( i );
470 EraseSection( MRUItemSection );
471 end;
472
473 WriteString( FontsSection, 'NormalFont', NormalFont.FaceName );
474 WriteInteger( FontsSection, 'NormalFontSize', NormalFont.PointSize );
475 WriteString( FontsSection, 'FixedFont', FixedFont.FaceName );
476 WriteInteger( FontsSection, 'FixedFontSize', FixedFont.PointSize );
477
478 for FontIndex := 0 to NumFontSettings - 1 do
479 begin
480 FontName := 'Font' + IntToStr( FontIndex );
481
482 WriteBool( FontsSection, FontName + 'Customised', Fonts[ FontIndex ] <> nil );
483
484 if Fonts[ FontIndex ] <> nil then
485 begin
486 WriteString( FontsSection, FontName + 'Face', Fonts[ FontIndex ].FaceName );
487 WriteInteger( FontsSection, FontName + 'Size', Fonts[ FontIndex ].PointSize );
488 end;
489
490 end;
491
492 WriteBool( FontsSection, 'FixedFontSubstitution', FixedFontSubstitution );
493 WriteString( FontsSection, 'FixedFontSubstitutes', FixedFontSubstitutes );
494
495 case IndexStyle of
496 isFileOnly:
497 SettingString := 'FileOnly';
498 isAlphabetical:
499 SettingString := 'Alphabetical';
500 isFull:
501 SettingString := 'Full';
502 end;
503
504 WriteString( GeneralSection, 'IndexStyle', SettingString );
505
506 WriteBool( GeneralSection, 'StartupHelp', StartupHelp );
507
508 WriteBool( GeneralSection, 'SmoothScrolling', SmoothScrolling );
509 WriteBool( GeneralSection, 'UseOriginalDialogs', UseOriginalDialogs );
510 WriteBool( GeneralSection, 'OpenWithExpandedContents', OpenWithExpandedContents );
511
512 WriteString( GeneralSection, 'ToolbarBackground', ToolbarBackgroundImageFilename );
513
514 case ToolbarStyle of
515 tsNone:
516 SettingString := 'None';
517 tsImages:
518 SettingString := 'Images';
519 tsText:
520 SettingString := 'Text';
521 tsImagesAndText:
522 SettingString := 'ImagesAndText';
523 end;
524
525 WriteString( GeneralSection, 'ToolbarStyle', SettingString );
526
527 WriteBool( GeneralSection, 'ConfirmWinHelp', ConfirmWinHelp );
528
529 WriteInteger( SearchSection,
530 'CustomDirCount',
531 SearchDirectories.Count );
532
533 SearchDirectories.Sorted := true;
534 SearchDirectories.CaseSensitive := false;
535 SearchDirectories.Duplicates := dupIgnore;
536
537 for i := 0 to SearchDirectories.Count - 1 do
538 begin
539 WriteString( SearchSection,
540 'CustomDir' + IntToStr( i ),
541 SearchDirectories[ i ] );
542 end;
543
544 case GlobalSearchLocation of
545 gsHelpPaths:
546 SettingString := 'HelpPaths';
547
548 gsFixedDrives:
549 SettingString := 'FixedDrives';
550
551 gsSelectedHelpPaths:
552 SettingString := 'SelectedHelpPaths';
553
554 gsCustom:
555 SettingString := 'Custom';
556 end;
557
558 WriteString( SearchSection,
559 'Location',
560 SettingString );
561
562 end;
563 end;
564 CloseIniFile( IniFile );
565 LogEvent(LogSettings, ' Done' );
566
567End;
568
569Procedure AddToMRUList( const Title: string;
570 Filenames: TStrings );
571var
572 MRUIndex: longint;
573 PreviousMRUIndex: longint;
574 MRUItem: TMRUItem;
575begin
576 PreviousMRUIndex := -1;
577 for MRUIndex := 0 to Settings.MRUList.Count - 1 do
578 begin
579 MRUItem := Settings.MRUList[ MRUIndex ];
580
581 if ( MRUItem.Title = Title )
582 and ( MRUItem.Filenames.Equals( Filenames ) ) then
583 begin
584 // found identical entry in the list already.
585 PreviousMRUIndex := MRUIndex;
586 break;
587 end;
588 end;
589
590 if PreviousMRUIndex > -1 then
591 begin
592 // is already in list, move to top of list
593 MRUItem := Settings.MRUList[ PreviousMRUIndex ];
594 Settings.MRUList.Delete( PreviousMRUIndex );
595 end
596 else
597 begin
598 // not yet in list. Create new
599 MRUItem := TMRUItem.Create;
600 MRUItem.Title := Title;
601 MRUItem.Filenames.Assign( Filenames );
602 end;
603
604 Settings.MRUList.Insert( 0, MRUItem );
605
606 while Settings.MRUList.Count > MaxMRUListEntries do
607 begin
608 MRUItem := Settings.MRUList[ MaxMRUListEntries ];
609 Settings.MRUList.Delete( MaxMRUListEntries );
610 MRUItem.Destroy;
611 end;
612end;
613
614Procedure WriteWindowPos( Form: TForm );
615Var
616 IniFile: TMyIniFile;
617Begin
618 GetIniFile( IniFile );
619 SaveFormSizePosition( Form, IniFile );
620 CloseIniFile( IniFile );
621End;
622
623Procedure ReadWindowPos( Form: TForm );
624Var
625 IniFile: TMyIniFile;
626Begin
627 GetIniFile( IniFile );
628 LoadFormSizePosition( Form, IniFile );
629 CloseIniFile( IniFile );
630End;
631
632Initialization
633 Settings.NormalFont := Screen.GetFontFromPointSize( 'Helv',
634 8 );
635 Settings.FixedFont := Screen.GetFontFromPointSize( 'Courier',
636 8 );
637 Settings.SearchDirectories := TStringList.Create;
638
639Finalization
640 Settings.NormalFont.Destroy;
641 Settings.FixedFont.Destroy;
642 Settings.SearchDirectories.Destroy;
643End.
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