source: trunk/src/user32/edit.c@ 10212

Last change on this file since 10212 was 10195, checked in by sandervl, 22 years ago

KOMH: DBCS updates/fixes
File size: 153.9 KB
Line 
1/*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 */
9
10/*
11 * please read EDIT.TODO (and update it when you change things)
12 */
13
14#include "config.h"
15
16#include <string.h>
17#include <stdlib.h>
18
19#include "winbase.h"
20#include "winnt.h"
21#include "win.h"
22#include "wine/winbase16.h"
23#include "wine/winuser16.h"
24#include "wine/unicode.h"
25#include "controls.h"
26#include "local.h"
27#include "user.h"
28#include "debugtools.h"
29
30#ifdef __WIN32OS2__
31#include "ctrlconf.h"
32#include <heapstring.h>
33#endif
34
35DEFAULT_DEBUG_CHANNEL(edit);
36DECLARE_DEBUG_CHANNEL(combo);
37#ifndef __WIN32OS2__
38DECLARE_DEBUG_CHANNEL(relay);
39
40#define BUFLIMIT_MULTI 0x7FFFFFF /* maximum buffer size (not including '\0')
41#define BUFLIMIT_SINGLE 0x7FFFFFF /* maximum buffer size (not including '\0') */
42#else
43#define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
44 FIXME: BTW, new specs say 65535 (do you dare ???) */
45#define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
46#endif
47
48#define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
49#define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
50#define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
51
52/*
53 * extra flags for EDITSTATE.flags field
54 */
55#define EF_MODIFIED 0x0001 /* text has been modified */
56#define EF_FOCUSED 0x0002 /* we have input focus */
57#define EF_UPDATE 0x0004 /* notify parent of changed state */
58#define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
59#define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
60#define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
61 wrapped line, instead of in front of the next character */
62#define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
63
64typedef enum
65{
66 END_0 = 0, /* line ends with terminating '\0' character */
67 END_WRAP, /* line is wrapped */
68 END_HARD, /* line ends with a hard return '\r\n' */
69 END_SOFT /* line ends with a soft return '\r\r\n' */
70} LINE_END;
71
72typedef struct tagLINEDEF {
73 INT length; /* bruto length of a line in bytes */
74 INT net_length; /* netto length of a line in visible characters */
75 LINE_END ending;
76 INT width; /* width of the line in pixels */
77 INT index; /* line index into the buffer */
78 struct tagLINEDEF *next;
79} LINEDEF;
80
81typedef struct
82{
83 BOOL is_unicode; /* how the control was created */
84 LPWSTR text; /* the actual contents of the control */
85 UINT buffer_size; /* the size of the buffer in characters */
86 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
87 HFONT font; /* NULL means standard system font */
88 INT x_offset; /* scroll offset for multi lines this is in pixels
89 for single lines it's in characters */
90 INT line_height; /* height of a screen line in pixels */
91 INT char_width; /* average character width in pixels */
92 DWORD style; /* sane version of wnd->dwStyle */
93 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
94 INT undo_insert_count; /* number of characters inserted in sequence */
95 UINT undo_position; /* character index of the insertion and deletion */
96 LPWSTR undo_text; /* deleted text */
97 UINT undo_buffer_size; /* size of the deleted text buffer */
98 INT selection_start; /* == selection_end if no selection */
99 INT selection_end; /* == current caret position */
100 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
101 INT left_margin; /* in pixels */
102 INT right_margin; /* in pixels */
103 RECT format_rect;
104 INT text_width; /* width of the widest line in pixels for multi line controls
105 and just line width for single line controls */
106 INT region_posx; /* Position of cursor relative to region: */
107 INT region_posy; /* -1: to left, 0: within, 1: to right */
108 EDITWORDBREAKPROC16 word_break_proc16;
109 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
110 INT line_count; /* number of lines */
111 INT y_offset; /* scroll offset in number of lines */
112 BOOL bCaptureState; /* flag indicating whether mouse was captured */
113 BOOL bEnableState; /* flag keeping the enable state */
114 HWND hwndParent; /* Handle of parent for sending EN_* messages.
115 Even if parent will change, EN_* messages
116 should be sent to the first parent. */
117 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
118 /*
119 * only for multi line controls
120 */
121 INT lock_count; /* amount of re-entries in the EditWndProc */
122 INT tabs_count;
123 LPINT tabs;
124 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
125 HLOCAL hloc32W; /* our unicode local memory block */
126 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
127 or EM_SETHANDLE16 */
128 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
129 or EM_SETHANDLE */
130} EDITSTATE;
131
132
133#define SWAP_INT32(x,y) do { INT temp = (INT)(x); (x) = (INT)(y); (y) = temp; } while(0)
134#define ORDER_INT(x,y) do { if ((INT)(y) < (INT)(x)) SWAP_INT32((x),(y)); } while(0)
135
136#define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
137#define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
138
139#define DPRINTF_EDIT_NOTIFY(hwnd, str) \
140 do {TRACE("notification " str " sent to hwnd=%08x\n", \
141 (UINT)(hwnd));} while(0)
142
143/* used for disabled or read-only edit control */
144#define EDIT_SEND_CTLCOLORSTATIC(hwnd,hdc) \
145 (SendMessageW(GetParent(hwnd), WM_CTLCOLORSTATIC, \
146 (WPARAM)(hdc), (LPARAM)(hwnd)))
147#define EDIT_SEND_CTLCOLOR(hwnd,hdc) \
148 (SendMessageW(GetParent(hwnd), WM_CTLCOLOREDIT, \
149 (WPARAM)(hdc), (LPARAM)(hwnd)))
150#define EDIT_NOTIFY_PARENT(hwnd, es, wNotifyCode, str) \
151 do \
152 { /* Notify parent which has created this edit control */ \
153 DPRINTF_EDIT_NOTIFY((es)->hwndParent, str); \
154 SendMessageW((es)->hwndParent, WM_COMMAND, \
155 MAKEWPARAM(GetWindowLongA((hwnd),GWL_ID), wNotifyCode), \
156 (LPARAM)(hwnd)); \
157 } while(0)
158#define DPRINTF_EDIT_MSG16(str) \
159 TRACE(\
160 "16 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
161 hwnd, (UINT)wParam, (UINT)lParam)
162#define DPRINTF_EDIT_MSG32(str) \
163 TRACE(\
164 "32 bit %c : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
165 unicode ? 'W' : 'A', \
166 hwnd, (UINT)wParam, (UINT)lParam)
167
168/*********************************************************************
169 *
170 * Declarations
171 *
172 */
173
174/*
175 * These functions have trivial implementations
176 * We still like to call them internally
177 * "static inline" makes them more like macro's
178 */
179static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
180static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
181static inline void EDIT_WM_Clear(HWND hwnd, EDITSTATE *es);
182static inline void EDIT_WM_Cut(HWND hwnd, EDITSTATE *es);
183
184/*
185 * Helper functions only valid for one type of control
186 */
187static void EDIT_BuildLineDefs_ML(HWND hwnd, EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
188static void EDIT_CalcLineWidth_SL(HWND hwnd, EDITSTATE *es);
189static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
190static void EDIT_MoveDown_ML(HWND hwnd, EDITSTATE *es, BOOL extend);
191static void EDIT_MovePageDown_ML(HWND hwnd, EDITSTATE *es, BOOL extend);
192static void EDIT_MovePageUp_ML(HWND hwnd, EDITSTATE *es, BOOL extend);
193static void EDIT_MoveUp_ML(HWND hwnd, EDITSTATE *es, BOOL extend);
194/*
195 * Helper functions valid for both single line _and_ multi line controls
196 */
197static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
198static INT EDIT_CharFromPos(HWND hwnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
199static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
200static void EDIT_GetLineRect(HWND hwnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
201static void EDIT_InvalidateText(HWND hwnd, EDITSTATE *es, INT start, INT end);
202static void EDIT_LockBuffer(HWND hwnd, EDITSTATE *es);
203static BOOL EDIT_MakeFit(HWND hwnd, EDITSTATE *es, UINT size);
204static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
205static void EDIT_MoveBackward(HWND hwnd, EDITSTATE *es, BOOL extend);
206static void EDIT_MoveEnd(HWND hwnd, EDITSTATE *es, BOOL extend);
207static void EDIT_MoveForward(HWND hwnd, EDITSTATE *es, BOOL extend);
208static void EDIT_MoveHome(HWND hwnd, EDITSTATE *es, BOOL extend);
209static void EDIT_MoveWordBackward(HWND hwnd, EDITSTATE *es, BOOL extend);
210static void EDIT_MoveWordForward(HWND hwnd, EDITSTATE *es, BOOL extend);
211static void EDIT_PaintLine(HWND hwnd, EDITSTATE *es, HDC hdc, INT line, BOOL rev);
212static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
213static void EDIT_SetCaretPos(HWND hwnd, EDITSTATE *es, INT pos, BOOL after_wrap);
214static void EDIT_SetRectNP(HWND hwnd, EDITSTATE *es, LPRECT lprc);
215static void EDIT_UnlockBuffer(HWND hwnd, EDITSTATE *es, BOOL force);
216static void EDIT_UpdateScrollInfo(HWND hwnd, EDITSTATE *es);
217static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
218/*
219 * EM_XXX message handlers
220 */
221static LRESULT EDIT_EM_CharFromPos(HWND hwnd, EDITSTATE *es, INT x, INT y);
222static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
223static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
224#ifndef __WIN32OS2__
225static HLOCAL16 EDIT_EM_GetHandle16(HWND hwnd, EDITSTATE *es);
226#endif
227static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
228static LRESULT EDIT_EM_GetSel(EDITSTATE *es, LPUINT start, LPUINT end);
229static LRESULT EDIT_EM_GetThumb(HWND hwnd, EDITSTATE *es);
230static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
231static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
232static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
233static BOOL EDIT_EM_LineScroll(HWND hwnd, EDITSTATE *es, INT dx, INT dy);
234static BOOL EDIT_EM_LineScroll_internal(HWND hwnd, EDITSTATE *es, INT dx, INT dy);
235static LRESULT EDIT_EM_PosFromChar(HWND hwnd, EDITSTATE *es, INT index, BOOL after_wrap);
236static void EDIT_EM_ReplaceSel(HWND hwnd, EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update);
237static LRESULT EDIT_EM_Scroll(HWND hwnd, EDITSTATE *es, INT action);
238static void EDIT_EM_ScrollCaret(HWND hwnd, EDITSTATE *es);
239static void EDIT_EM_SetHandle(HWND hwnd, EDITSTATE *es, HLOCAL hloc);
240#ifndef __WIN32OS2__
241static void EDIT_EM_SetHandle16(HWND hwnd, EDITSTATE *es, HLOCAL16 hloc);
242#endif
243static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
244static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
245static void EDIT_EM_SetPasswordChar(HWND hwnd, EDITSTATE *es, WCHAR c);
246static void EDIT_EM_SetSel(HWND hwnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
247static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
248static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
249static void EDIT_EM_SetWordBreakProc(HWND hwnd, EDITSTATE *es, LPARAM lParam);
250#ifndef __WIN32OS2__
251static void EDIT_EM_SetWordBreakProc16(HWND hwnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
252#endif
253static BOOL EDIT_EM_Undo(HWND hwnd, EDITSTATE *es);
254/*
255 * WM_XXX message handlers
256 */
257static void EDIT_WM_Char(HWND hwnd, EDITSTATE *es, WCHAR c);
258static void EDIT_WM_Command(HWND hwnd, EDITSTATE *es, INT code, INT id, HWND conrtol);
259static void EDIT_WM_ContextMenu(HWND hwnd, EDITSTATE *es, INT x, INT y);
260static void EDIT_WM_Copy(HWND hwnd, EDITSTATE *es);
261static LRESULT EDIT_WM_Create(HWND hwnd, EDITSTATE *es, LPCWSTR name);
262static void EDIT_WM_Destroy(HWND hwnd, EDITSTATE *es);
263static LRESULT EDIT_WM_EraseBkGnd(HWND hwnd, EDITSTATE *es, HDC dc);
264static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
265static LRESULT EDIT_WM_HScroll(HWND hwnd, EDITSTATE *es, INT action, INT pos);
266static LRESULT EDIT_WM_KeyDown(HWND hwnd, EDITSTATE *es, INT key);
267static LRESULT EDIT_WM_KillFocus(HWND hwnd, EDITSTATE *es);
268static LRESULT EDIT_WM_LButtonDblClk(HWND hwnd, EDITSTATE *es);
269static LRESULT EDIT_WM_LButtonDown(HWND hwnd, EDITSTATE *es, DWORD keys, INT x, INT y);
270static LRESULT EDIT_WM_LButtonUp(HWND hwndSelf, EDITSTATE *es);
271static LRESULT EDIT_WM_MButtonDown(HWND hwnd);
272static LRESULT EDIT_WM_MouseMove(HWND hwnd, EDITSTATE *es, INT x, INT y);
273static LRESULT EDIT_WM_NCCreate(HWND hwnd, DWORD style, HWND hwndParent, BOOL unicode);
274static void EDIT_WM_Paint(HWND hwnd, EDITSTATE *es, WPARAM wParam);
275static void EDIT_WM_Paste(HWND hwnd, EDITSTATE *es);
276static void EDIT_WM_SetFocus(HWND hwnd, EDITSTATE *es);
277static void EDIT_WM_SetFont(HWND hwnd, EDITSTATE *es, HFONT font, BOOL redraw);
278static void EDIT_WM_SetText(HWND hwnd, EDITSTATE *es, LPARAM lParam, BOOL unicode);
279static void EDIT_WM_Size(HWND hwnd, EDITSTATE *es, UINT action, INT width, INT height);
280static LRESULT EDIT_WM_StyleChanged (HWND hwnd, EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
281static LRESULT EDIT_WM_SysKeyDown(HWND hwnd, EDITSTATE *es, INT key, DWORD key_data);
282static void EDIT_WM_Timer(HWND hwnd, EDITSTATE *es);
283static LRESULT EDIT_WM_VScroll(HWND hwnd, EDITSTATE *es, INT action, INT pos);
284static void EDIT_UpdateText(HWND hwnd, EDITSTATE *es, LPRECT rc, BOOL bErase);
285static void EDIT_UpdateTextRegion(HWND hwnd, EDITSTATE *es, HRGN hrgn, BOOL bErase);
286
287LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
288LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
289
290/*********************************************************************
291 * edit class descriptor
292 */
293const struct builtin_class_descr EDIT_builtin_class =
294{
295 "Edit", /* name */
296 CS_GLOBALCLASS | CS_DBLCLKS /*| CS_PARENTDC*/, /* style */
297 EditWndProcA, /* procA */
298 EditWndProcW, /* procW */
299 sizeof(EDITSTATE *), /* extra */
300 IDC_IBEAMA, /* cursor */
301 0 /* brush */
302};
303
304
305/*********************************************************************
306 *
307 * EM_CANUNDO
308 *
309 */
310static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
311{
312 return (es->undo_insert_count || strlenW(es->undo_text));
313}
314
315
316/*********************************************************************
317 *
318 * EM_EMPTYUNDOBUFFER
319 *
320 */
321static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
322{
323 es->undo_insert_count = 0;
324 *es->undo_text = '\0';
325}
326
327
328/*********************************************************************
329 *
330 * WM_CLEAR
331 *
332 */
333static inline void EDIT_WM_Clear(HWND hwnd, EDITSTATE *es)
334{
335 static const WCHAR empty_stringW[] = {0};
336
337 /* Protect read-only edit control from modification */
338 if(es->style & ES_READONLY)
339 return;
340
341 EDIT_EM_ReplaceSel(hwnd, es, TRUE, empty_stringW, TRUE);
342}
343
344
345/*********************************************************************
346 *
347 * WM_CUT
348 *
349 */
350static inline void EDIT_WM_Cut(HWND hwnd, EDITSTATE *es)
351{
352 EDIT_WM_Copy(hwnd, es);
353 EDIT_WM_Clear(hwnd, es);
354}
355
356
357/**********************************************************************
358 * get_app_version
359 *
360 * Returns the window version in case Wine emulates a later version
361 * of windows then the application expects.
362 *
363 * In a number of cases when windows runs an application that was
364 * designed for an earlier windows version, windows reverts
365 * to "old" behaviour of that earlier version.
366 *
367 * An example is a disabled edit control that needs to be painted.
368 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
369 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
370 * applications with an expected version 0f 4.0 or higher.
371 *
372 */
373static DWORD get_app_version(void)
374{
375 static DWORD version;
376 if (!version)
377 {
378 DWORD dwEmulatedVersion;
379 OSVERSIONINFOW info;
380 DWORD dwProcVersion = GetProcessVersion(0);
381
382 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
383 GetVersionExW( &info );
384 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
385 /* FIXME: this may not be 100% correct; see discussion on the
386 * wine developer list in Nov 1999 */
387 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
388 }
389 return version;
390}
391
392
393/*********************************************************************
394 *
395 * EditWndProc_common
396 *
397 * The messages are in the order of the actual integer values
398 * (which can be found in include/windows.h)
399 * Wherever possible the 16 bit versions are converted to
400 * the 32 bit ones, so that we can 'fall through' to the
401 * helper functions. These are mostly 32 bit (with a few
402 * exceptions, clearly indicated by a '16' extension to their
403 * names).
404 *
405 */
406static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
407 WPARAM wParam, LPARAM lParam, BOOL unicode )
408{
409 EDITSTATE *es = (EDITSTATE *)GetWindowLongA( hwnd, 0 );
410 LRESULT result = 0;
411
412 switch (msg) {
413 case WM_DESTROY:
414 DPRINTF_EDIT_MSG32("WM_DESTROY");
415 if (es) EDIT_WM_Destroy(hwnd, es);
416 result = 0;
417 goto END;
418
419 case WM_NCCREATE:
420 DPRINTF_EDIT_MSG32("WM_NCCREATE");
421 if(unicode)
422 {
423 LPCREATESTRUCTW cs = (LPCREATESTRUCTW)lParam;
424 result = EDIT_WM_NCCreate(hwnd, cs->style, cs->hwndParent, TRUE);
425 }
426 else
427 {
428 LPCREATESTRUCTA cs = (LPCREATESTRUCTA)lParam;
429 result = EDIT_WM_NCCreate(hwnd, cs->style, cs->hwndParent, FALSE);
430 }
431 goto END;
432 }
433
434 if (!es)
435 {
436 if(unicode)
437 result = DefWindowProcW(hwnd, msg, wParam, lParam);
438 else
439 result = DefWindowProcA(hwnd, msg, wParam, lParam);
440 goto END;
441 }
442
443
444 EDIT_LockBuffer(hwnd, es);
445 switch (msg) {
446 case EM_GETSEL16:
447 DPRINTF_EDIT_MSG16("EM_GETSEL");
448 wParam = 0;
449 lParam = 0;
450 /* fall through */
451 case EM_GETSEL:
452 DPRINTF_EDIT_MSG32("EM_GETSEL");
453 result = EDIT_EM_GetSel(es, (LPUINT)wParam, (LPUINT)lParam);
454 break;
455
456 case EM_SETSEL16:
457 DPRINTF_EDIT_MSG16("EM_SETSEL");
458 if (SLOWORD(lParam) == -1)
459 EDIT_EM_SetSel(hwnd, es, (UINT)-1, 0, FALSE);
460 else
461 EDIT_EM_SetSel(hwnd, es, LOWORD(lParam), HIWORD(lParam), FALSE);
462 if (!wParam)
463 EDIT_EM_ScrollCaret(hwnd, es);
464 result = 1;
465 break;
466 case EM_SETSEL:
467 DPRINTF_EDIT_MSG32("EM_SETSEL");
468 EDIT_EM_SetSel(hwnd, es, wParam, lParam, FALSE);
469 EDIT_EM_ScrollCaret(hwnd, es);
470 result = 1;
471 break;
472
473 case EM_GETRECT16:
474 DPRINTF_EDIT_MSG16("EM_GETRECT");
475 if (lParam)
476 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
477 break;
478 case EM_GETRECT:
479 DPRINTF_EDIT_MSG32("EM_GETRECT");
480 if (lParam)
481 CopyRect((LPRECT)lParam, &es->format_rect);
482 break;
483
484 case EM_SETRECT16:
485 DPRINTF_EDIT_MSG16("EM_SETRECT");
486 if ((es->style & ES_MULTILINE) && lParam) {
487 RECT rc;
488 CONV_RECT16TO32(MapSL(lParam), &rc);
489 EDIT_SetRectNP(hwnd, es, &rc);
490 EDIT_UpdateText(hwnd, es, NULL, TRUE);
491 }
492 break;
493 case EM_SETRECT:
494 DPRINTF_EDIT_MSG32("EM_SETRECT");
495 if ((es->style & ES_MULTILINE) && lParam) {
496 EDIT_SetRectNP(hwnd, es, (LPRECT)lParam);
497 EDIT_UpdateText(hwnd, es, NULL, TRUE);
498 }
499 break;
500
501 case EM_SETRECTNP16:
502 DPRINTF_EDIT_MSG16("EM_SETRECTNP");
503 if ((es->style & ES_MULTILINE) && lParam) {
504 RECT rc;
505 CONV_RECT16TO32(MapSL(lParam), &rc);
506 EDIT_SetRectNP(hwnd, es, &rc);
507 }
508 break;
509 case EM_SETRECTNP:
510 DPRINTF_EDIT_MSG32("EM_SETRECTNP");
511 if ((es->style & ES_MULTILINE) && lParam)
512 EDIT_SetRectNP(hwnd, es, (LPRECT)lParam);
513 break;
514
515 case EM_SCROLL16:
516 DPRINTF_EDIT_MSG16("EM_SCROLL");
517 /* fall through */
518 case EM_SCROLL:
519 DPRINTF_EDIT_MSG32("EM_SCROLL");
520 result = EDIT_EM_Scroll(hwnd, es, (INT)wParam);
521 break;
522
523 case EM_LINESCROLL16:
524 DPRINTF_EDIT_MSG16("EM_LINESCROLL");
525 wParam = (WPARAM)(INT)SHIWORD(lParam);
526 lParam = (LPARAM)(INT)SLOWORD(lParam);
527 /* fall through */
528 case EM_LINESCROLL:
529 DPRINTF_EDIT_MSG32("EM_LINESCROLL");
530 result = (LRESULT)EDIT_EM_LineScroll(hwnd, es, (INT)wParam, (INT)lParam);
531 break;
532
533 case EM_SCROLLCARET16:
534 DPRINTF_EDIT_MSG16("EM_SCROLLCARET");
535 /* fall through */
536 case EM_SCROLLCARET:
537 DPRINTF_EDIT_MSG32("EM_SCROLLCARET");
538 EDIT_EM_ScrollCaret(hwnd, es);
539 result = 1;
540 break;
541
542 case EM_GETMODIFY16:
543 DPRINTF_EDIT_MSG16("EM_GETMODIFY");
544 /* fall through */
545 case EM_GETMODIFY:
546 DPRINTF_EDIT_MSG32("EM_GETMODIFY");
547 result = ((es->flags & EF_MODIFIED) != 0);
548 break;
549
550 case EM_SETMODIFY16:
551 DPRINTF_EDIT_MSG16("EM_SETMODIFY");
552 /* fall through */
553 case EM_SETMODIFY:
554 DPRINTF_EDIT_MSG32("EM_SETMODIFY");
555 if (wParam)
556 es->flags |= EF_MODIFIED;
557 else
558 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
559 break;
560
561 case EM_GETLINECOUNT16:
562 DPRINTF_EDIT_MSG16("EM_GETLINECOUNT");
563 /* fall through */
564 case EM_GETLINECOUNT:
565 DPRINTF_EDIT_MSG32("EM_GETLINECOUNT");
566 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
567 break;
568
569 case EM_LINEINDEX16:
570 DPRINTF_EDIT_MSG16("EM_LINEINDEX");
571 if ((INT16)wParam == -1)
572 wParam = (WPARAM)-1;
573 /* fall through */
574 case EM_LINEINDEX:
575 DPRINTF_EDIT_MSG32("EM_LINEINDEX");
576 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
577 break;
578
579#ifndef __WIN32OS2__
580 case EM_SETHANDLE16:
581 DPRINTF_EDIT_MSG16("EM_SETHANDLE");
582 EDIT_EM_SetHandle16(hwnd, es, (HLOCAL16)wParam);
583 break;
584#endif
585 case EM_SETHANDLE:
586 DPRINTF_EDIT_MSG32("EM_SETHANDLE");
587 EDIT_EM_SetHandle(hwnd, es, (HLOCAL)wParam);
588 break;
589
590#ifndef __WIN32OS2__
591 case EM_GETHANDLE16:
592 DPRINTF_EDIT_MSG16("EM_GETHANDLE");
593 result = (LRESULT)EDIT_EM_GetHandle16(hwnd, es);
594 break;
595#endif
596 case EM_GETHANDLE:
597 DPRINTF_EDIT_MSG32("EM_GETHANDLE");
598 result = (LRESULT)EDIT_EM_GetHandle(es);
599 break;
600
601 case EM_GETTHUMB16:
602 DPRINTF_EDIT_MSG16("EM_GETTHUMB");
603 /* fall through */
604 case EM_GETTHUMB:
605 DPRINTF_EDIT_MSG32("EM_GETTHUMB");
606 result = EDIT_EM_GetThumb(hwnd, es);
607 break;
608
609 /* messages 0x00bf and 0x00c0 missing from specs */
610
611 case WM_USER+15:
612 DPRINTF_EDIT_MSG16("undocumented WM_USER+15, please report");
613 /* fall through */
614 case 0x00bf:
615 DPRINTF_EDIT_MSG32("undocumented 0x00bf, please report");
616 result = DefWindowProcW(hwnd, msg, wParam, lParam);
617 break;
618
619 case WM_USER+16:
620 DPRINTF_EDIT_MSG16("undocumented WM_USER+16, please report");
621 /* fall through */
622 case 0x00c0:
623 DPRINTF_EDIT_MSG32("undocumented 0x00c0, please report");
624 result = DefWindowProcW(hwnd, msg, wParam, lParam);
625 break;
626
627 case EM_LINELENGTH16:
628 DPRINTF_EDIT_MSG16("EM_LINELENGTH");
629 /* fall through */
630 case EM_LINELENGTH:
631 DPRINTF_EDIT_MSG32("EM_LINELENGTH");
632 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
633 break;
634
635 case EM_REPLACESEL16:
636 DPRINTF_EDIT_MSG16("EM_REPLACESEL");
637 lParam = (LPARAM)MapSL(lParam);
638 unicode = FALSE; /* 16-bit message is always ascii */
639 /* fall through */
640 case EM_REPLACESEL:
641 {
642 LPWSTR textW;
643 DPRINTF_EDIT_MSG32("EM_REPLACESEL");
644
645 if(unicode)
646 textW = (LPWSTR)lParam;
647 else
648 {
649 LPSTR textA = (LPSTR)lParam;
650 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
651 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
652 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
653 }
654
655 EDIT_EM_ReplaceSel(hwnd, es, (BOOL)wParam, textW, TRUE);
656 result = 1;
657
658 if(!unicode)
659 HeapFree(GetProcessHeap(), 0, textW);
660 break;
661 }
662 /* message 0x00c3 missing from specs */
663
664 case WM_USER+19:
665 DPRINTF_EDIT_MSG16("undocumented WM_USER+19, please report");
666 /* fall through */
667 case 0x00c3:
668 DPRINTF_EDIT_MSG32("undocumented 0x00c3, please report");
669 result = DefWindowProcW(hwnd, msg, wParam, lParam);
670 break;
671
672 case EM_GETLINE16:
673 DPRINTF_EDIT_MSG16("EM_GETLINE");
674 lParam = (LPARAM)MapSL(lParam);
675 unicode = FALSE; /* 16-bit message is always ascii */
676 /* fall through */
677 case EM_GETLINE:
678 DPRINTF_EDIT_MSG32("EM_GETLINE");
679 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
680 break;
681
682 case EM_LIMITTEXT16:
683 DPRINTF_EDIT_MSG16("EM_LIMITTEXT");
684 /* fall through */
685 case EM_SETLIMITTEXT:
686 DPRINTF_EDIT_MSG32("EM_SETLIMITTEXT");
687 EDIT_EM_SetLimitText(es, (INT)wParam);
688 break;
689
690 case EM_CANUNDO16:
691 DPRINTF_EDIT_MSG16("EM_CANUNDO");
692 /* fall through */
693 case EM_CANUNDO:
694 DPRINTF_EDIT_MSG32("EM_CANUNDO");
695 result = (LRESULT)EDIT_EM_CanUndo(es);
696 break;
697
698 case EM_UNDO16:
699 DPRINTF_EDIT_MSG16("EM_UNDO");
700 /* fall through */
701 case EM_UNDO:
702 /* fall through */
703 case WM_UNDO:
704 DPRINTF_EDIT_MSG32("EM_UNDO / WM_UNDO");
705 result = (LRESULT)EDIT_EM_Undo(hwnd, es);
706 break;
707
708 case EM_FMTLINES16:
709 DPRINTF_EDIT_MSG16("EM_FMTLINES");
710 /* fall through */
711 case EM_FMTLINES:
712 DPRINTF_EDIT_MSG32("EM_FMTLINES");
713 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
714 break;
715
716 case EM_LINEFROMCHAR16:
717 DPRINTF_EDIT_MSG16("EM_LINEFROMCHAR");
718 /* fall through */
719 case EM_LINEFROMCHAR:
720 DPRINTF_EDIT_MSG32("EM_LINEFROMCHAR");
721 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
722 break;
723
724 /* message 0x00ca missing from specs */
725
726 case WM_USER+26:
727 DPRINTF_EDIT_MSG16("undocumented WM_USER+26, please report");
728 /* fall through */
729 case 0x00ca:
730 DPRINTF_EDIT_MSG32("undocumented 0x00ca, please report");
731 result = DefWindowProcW(hwnd, msg, wParam, lParam);
732 break;
733
734 case EM_SETTABSTOPS16:
735 DPRINTF_EDIT_MSG16("EM_SETTABSTOPS");
736 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
737 break;
738 case EM_SETTABSTOPS:
739 DPRINTF_EDIT_MSG32("EM_SETTABSTOPS");
740 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
741 break;
742
743 case EM_SETPASSWORDCHAR16:
744 DPRINTF_EDIT_MSG16("EM_SETPASSWORDCHAR");
745 unicode = FALSE; /* 16-bit message is always ascii */
746 /* fall through */
747 case EM_SETPASSWORDCHAR:
748 {
749 WCHAR charW = 0;
750 DPRINTF_EDIT_MSG32("EM_SETPASSWORDCHAR");
751
752 if(unicode)
753 charW = (WCHAR)wParam;
754 else
755 {
756 CHAR charA = wParam;
757 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
758 }
759
760 EDIT_EM_SetPasswordChar(hwnd, es, charW);
761 break;
762 }
763
764 case EM_EMPTYUNDOBUFFER16:
765 DPRINTF_EDIT_MSG16("EM_EMPTYUNDOBUFFER");
766 /* fall through */
767 case EM_EMPTYUNDOBUFFER:
768 DPRINTF_EDIT_MSG32("EM_EMPTYUNDOBUFFER");
769 EDIT_EM_EmptyUndoBuffer(es);
770 break;
771
772 case EM_GETFIRSTVISIBLELINE16:
773 DPRINTF_EDIT_MSG16("EM_GETFIRSTVISIBLELINE");
774 result = es->y_offset;
775 break;
776 case EM_GETFIRSTVISIBLELINE:
777 DPRINTF_EDIT_MSG32("EM_GETFIRSTVISIBLELINE");
778 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
779 break;
780
781 case EM_SETREADONLY16:
782 DPRINTF_EDIT_MSG16("EM_SETREADONLY");
783 /* fall through */
784 case EM_SETREADONLY:
785 DPRINTF_EDIT_MSG32("EM_SETREADONLY");
786 if (wParam) {
787 SetWindowLongA( hwnd, GWL_STYLE,
788 GetWindowLongA( hwnd, GWL_STYLE ) | ES_READONLY );
789 es->style |= ES_READONLY;
790 } else {
791 SetWindowLongA( hwnd, GWL_STYLE,
792 GetWindowLongA( hwnd, GWL_STYLE ) & ~ES_READONLY );
793 es->style &= ~ES_READONLY;
794 }
795 result = 1;
796 break;
797#ifndef __WIN32OS2__
798 case EM_SETWORDBREAKPROC16:
799 DPRINTF_EDIT_MSG16("EM_SETWORDBREAKPROC");
800 EDIT_EM_SetWordBreakProc16(hwnd, es, (EDITWORDBREAKPROC16)lParam);
801 break;
802#endif
803 case EM_SETWORDBREAKPROC:
804 DPRINTF_EDIT_MSG32("EM_SETWORDBREAKPROC");
805 EDIT_EM_SetWordBreakProc(hwnd, es, lParam);
806 break;
807
808 case EM_GETWORDBREAKPROC16:
809 DPRINTF_EDIT_MSG16("EM_GETWORDBREAKPROC");
810 result = (LRESULT)es->word_break_proc16;
811 break;
812 case EM_GETWORDBREAKPROC:
813 DPRINTF_EDIT_MSG32("EM_GETWORDBREAKPROC");
814 result = (LRESULT)es->word_break_proc;
815 break;
816
817 case EM_GETPASSWORDCHAR16:
818 DPRINTF_EDIT_MSG16("EM_GETPASSWORDCHAR");
819 unicode = FALSE; /* 16-bit message is always ascii */
820 /* fall through */
821 case EM_GETPASSWORDCHAR:
822 {
823 DPRINTF_EDIT_MSG32("EM_GETPASSWORDCHAR");
824
825 if(unicode)
826 result = es->password_char;
827 else
828 {
829 WCHAR charW = es->password_char;
830 CHAR charA = 0;
831 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
832 result = charA;
833 }
834 break;
835 }
836
837 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
838
839 case EM_SETMARGINS:
840 DPRINTF_EDIT_MSG32("EM_SETMARGINS");
841 EDIT_EM_SetMargins(es, (INT)wParam, SLOWORD(lParam), SHIWORD(lParam));
842 break;
843
844 case EM_GETMARGINS:
845 DPRINTF_EDIT_MSG32("EM_GETMARGINS");
846 result = MAKELONG(es->left_margin, es->right_margin);
847 break;
848
849 case EM_GETLIMITTEXT:
850 DPRINTF_EDIT_MSG32("EM_GETLIMITTEXT");
851 result = es->buffer_limit;
852 break;
853
854 case EM_POSFROMCHAR:
855 DPRINTF_EDIT_MSG32("EM_POSFROMCHAR");
856 result = EDIT_EM_PosFromChar(hwnd, es, (INT)wParam, FALSE);
857 break;
858
859 case EM_CHARFROMPOS:
860 DPRINTF_EDIT_MSG32("EM_CHARFROMPOS");
861 result = EDIT_EM_CharFromPos(hwnd, es, SLOWORD(lParam), SHIWORD(lParam));
862 break;
863
864 /* End of the EM_ messages which were in numerical order; what order
865 * are these in? vaguely alphabetical?
866 */
867
868 case WM_GETDLGCODE:
869 DPRINTF_EDIT_MSG32("WM_GETDLGCODE");
870 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
871
872 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
873 {
874 int vk = (int)((LPMSG)lParam)->wParam;
875
876 if (vk == VK_RETURN && (GetWindowLongA( hwnd, GWL_STYLE ) & ES_WANTRETURN))
877 {
878 result |= DLGC_WANTMESSAGE;
879 }
880 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
881 {
882 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
883 result |= DLGC_WANTMESSAGE;
884 }
885 }
886 break;
887
888 case WM_CHAR:
889 {
890#ifdef __WIN32OS2__
891 static BOOL bDbcsLead = FALSE;
892 static CHAR cDbcsLead = 0;
893
894 WCHAR charW;
895 DPRINTF_EDIT_MSG32("WM_CHAR");
896
897 if(unicode)
898 charW = wParam;
899 else
900 {
901 WCHAR charA = bDbcsLead ? (( wParam << 8 ) | cDbcsLead ) : wParam;
902 int size = bDbcsLead ? 2 : 1;
903
904 bDbcsLead = !bDbcsLead && IsDBCSLeadByte( wParam );
905
906 if( bDbcsLead )
907 cDbcsLead = wParam;
908 else
909 MultiByteToWideChar(CP_ACP, 0, (LPSTR)&charA, size, &charW, 1);
910 }
911
912 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
913 {
914 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
915 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
916 break;
917 }
918 if( !bDbcsLead )
919 EDIT_WM_Char(hwnd, es, charW);
920#else
921 WCHAR charW;
922 DPRINTF_EDIT_MSG32("WM_CHAR");
923
924 if(unicode)
925 charW = wParam;
926 else
927 {
928 CHAR charA = wParam;
929 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
930 }
931
932 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
933 {
934 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
935 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
936 break;
937 }
938 EDIT_WM_Char(hwnd, es, charW);
939#endif
940 break;
941 }
942
943 case WM_CLEAR:
944 DPRINTF_EDIT_MSG32("WM_CLEAR");
945 EDIT_WM_Clear(hwnd, es);
946 break;
947
948 case WM_COMMAND:
949 DPRINTF_EDIT_MSG32("WM_COMMAND");
950 EDIT_WM_Command(hwnd, es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
951 break;
952
953 case WM_CONTEXTMENU:
954 DPRINTF_EDIT_MSG32("WM_CONTEXTMENU");
955 EDIT_WM_ContextMenu(hwnd, es, SLOWORD(lParam), SHIWORD(lParam));
956 break;
957
958 case WM_COPY:
959 DPRINTF_EDIT_MSG32("WM_COPY");
960 EDIT_WM_Copy(hwnd, es);
961 break;
962
963 case WM_CREATE:
964 DPRINTF_EDIT_MSG32("WM_CREATE");
965 if(unicode)
966 result = EDIT_WM_Create(hwnd, es, ((LPCREATESTRUCTW)lParam)->lpszName);
967 else
968 {
969 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
970 LPWSTR nameW = NULL;
971 if(nameA)
972 {
973 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
974 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
975 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
976 }
977 result = EDIT_WM_Create(hwnd, es, nameW);
978 if(nameW)
979 HeapFree(GetProcessHeap(), 0, nameW);
980 }
981 break;
982
983 case WM_CUT:
984 DPRINTF_EDIT_MSG32("WM_CUT");
985 EDIT_WM_Cut(hwnd, es);
986 break;
987
988 case WM_ENABLE:
989 DPRINTF_EDIT_MSG32("WM_ENABLE");
990 es->bEnableState = (BOOL) wParam;
991 EDIT_UpdateText(hwnd, es, NULL, TRUE);
992 break;
993
994 case WM_ERASEBKGND:
995 DPRINTF_EDIT_MSG32("WM_ERASEBKGND");
996 result = EDIT_WM_EraseBkGnd(hwnd, es, (HDC)wParam);
997 break;
998
999 case WM_GETFONT:
1000 DPRINTF_EDIT_MSG32("WM_GETFONT");
1001 result = (LRESULT)es->font;
1002 break;
1003
1004 case WM_GETTEXT:
1005 DPRINTF_EDIT_MSG32("WM_GETTEXT");
1006 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
1007 break;
1008
1009 case WM_GETTEXTLENGTH:
1010 DPRINTF_EDIT_MSG32("WM_GETTEXTLENGTH");
1011 result = strlenW(es->text);
1012 break;
1013
1014 case WM_HSCROLL:
1015 DPRINTF_EDIT_MSG32("WM_HSCROLL");
1016 result = EDIT_WM_HScroll(hwnd, es, LOWORD(wParam), SHIWORD(wParam));
1017 break;
1018
1019 case WM_KEYDOWN:
1020 DPRINTF_EDIT_MSG32("WM_KEYDOWN");
1021 result = EDIT_WM_KeyDown(hwnd, es, (INT)wParam);
1022 break;
1023
1024 case WM_KILLFOCUS:
1025 DPRINTF_EDIT_MSG32("WM_KILLFOCUS");
1026 result = EDIT_WM_KillFocus(hwnd, es);
1027 break;
1028
1029 case WM_LBUTTONDBLCLK:
1030 DPRINTF_EDIT_MSG32("WM_LBUTTONDBLCLK");
1031 result = EDIT_WM_LButtonDblClk(hwnd, es);
1032 break;
1033
1034 case WM_LBUTTONDOWN:
1035 DPRINTF_EDIT_MSG32("WM_LBUTTONDOWN");
1036 result = EDIT_WM_LButtonDown(hwnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
1037 break;
1038
1039 case WM_LBUTTONUP:
1040 DPRINTF_EDIT_MSG32("WM_LBUTTONUP");
1041 result = EDIT_WM_LButtonUp(hwnd, es);
1042 break;
1043
1044 case WM_MBUTTONDOWN:
1045 DPRINTF_EDIT_MSG32("WM_MBUTTONDOWN");
1046 result = EDIT_WM_MButtonDown(hwnd);
1047 break;
1048
1049 case WM_MOUSEACTIVATE:
1050 /*
1051 * FIXME: maybe DefWindowProc() screws up, but it seems that
1052 * modeless dialog boxes need this. If we don't do this, the focus
1053 * will _not_ be set by DefWindowProc() for edit controls in a
1054 * modeless dialog box ???
1055 */
1056 DPRINTF_EDIT_MSG32("WM_MOUSEACTIVATE");
1057 SetFocus(hwnd);
1058 result = MA_ACTIVATE;
1059 break;
1060
1061 case WM_MOUSEMOVE:
1062 /*
1063 * DPRINTF_EDIT_MSG32("WM_MOUSEMOVE");
1064 */
1065 result = EDIT_WM_MouseMove(hwnd, es, SLOWORD(lParam), SHIWORD(lParam));
1066 break;
1067
1068 case WM_PAINT:
1069 DPRINTF_EDIT_MSG32("WM_PAINT");
1070 EDIT_WM_Paint(hwnd, es, wParam);
1071 break;
1072
1073 case WM_PASTE:
1074 DPRINTF_EDIT_MSG32("WM_PASTE");
1075 EDIT_WM_Paste(hwnd, es);
1076 break;
1077
1078 case WM_SETFOCUS:
1079 DPRINTF_EDIT_MSG32("WM_SETFOCUS");
1080 EDIT_WM_SetFocus(hwnd, es);
1081 break;
1082
1083 case WM_SETFONT:
1084 DPRINTF_EDIT_MSG32("WM_SETFONT");
1085 EDIT_WM_SetFont(hwnd, es, (HFONT)wParam, LOWORD(lParam) != 0);
1086 break;
1087
1088 case WM_SETREDRAW:
1089 /* FIXME: actually set an internal flag and behave accordingly */
1090 break;
1091
1092 case WM_SETTEXT:
1093 DPRINTF_EDIT_MSG32("WM_SETTEXT");
1094 EDIT_WM_SetText(hwnd, es, lParam, unicode);
1095 result = TRUE;
1096 break;
1097
1098 case WM_SIZE:
1099 DPRINTF_EDIT_MSG32("WM_SIZE");
1100 EDIT_WM_Size(hwnd, es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
1101 break;
1102
1103 case WM_STYLECHANGED:
1104 DPRINTF_EDIT_MSG32("WM_STYLECHANGED");
1105 result = EDIT_WM_StyleChanged (hwnd, es, wParam, (const STYLESTRUCT *)lParam);
1106 break;
1107
1108 case WM_STYLECHANGING:
1109 DPRINTF_EDIT_MSG32("WM_STYLECHANGING");
1110 result = 0; /* See EDIT_WM_StyleChanged */
1111 break;
1112
1113 case WM_SYSKEYDOWN:
1114 DPRINTF_EDIT_MSG32("WM_SYSKEYDOWN");
1115 result = EDIT_WM_SysKeyDown(hwnd, es, (INT)wParam, (DWORD)lParam);
1116 break;
1117
1118 case WM_TIMER:
1119 DPRINTF_EDIT_MSG32("WM_TIMER");
1120 EDIT_WM_Timer(hwnd, es);
1121 break;
1122
1123 case WM_VSCROLL:
1124 DPRINTF_EDIT_MSG32("WM_VSCROLL");
1125 result = EDIT_WM_VScroll(hwnd, es, LOWORD(wParam), SHIWORD(wParam));
1126 break;
1127
1128 case WM_MOUSEWHEEL:
1129 {
1130 int gcWheelDelta = 0;
1131 UINT pulScrollLines = 3;
1132 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1133
1134 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1135 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1136 break;
1137 }
1138 gcWheelDelta -= SHIWORD(wParam);
1139 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1140 {
1141 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1142 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1143 result = EDIT_EM_LineScroll(hwnd, es, 0, cLineScroll);
1144 }
1145 }
1146 break;
1147 default:
1148 if(unicode)
1149 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1150 else
1151 result = DefWindowProcA(hwnd, msg, wParam, lParam);
1152 break;
1153 }
1154 EDIT_UnlockBuffer(hwnd, es, FALSE);
1155 END:
1156 return result;
1157}
1158
1159/*********************************************************************
1160 *
1161 * EditWndProcW (USER32.@)
1162 */
1163LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1164{
1165 if (!IsWindow( hWnd )) return 0;
1166 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1167}
1168
1169/*********************************************************************
1170 *
1171 * EditWndProc (USER32.@)
1172 */
1173LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1174{
1175 if (!IsWindow( hWnd )) return 0;
1176 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1177}
1178
1179/*********************************************************************
1180 *
1181 * EDIT_BuildLineDefs_ML
1182 *
1183 * Build linked list of text lines.
1184 * Lines can end with '\0' (last line), a character (if it is wrapped),
1185 * a soft return '\r\r\n' or a hard return '\r\n'
1186 *
1187 */
1188static void EDIT_BuildLineDefs_ML(HWND hwnd, EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1189{
1190 HDC dc;
1191 HFONT old_font = 0;
1192 LPWSTR current_position, cp;
1193 INT fw;
1194 LINEDEF *current_line;
1195 LINEDEF *previous_line;
1196 LINEDEF *start_line;
1197 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1198 INT line_count = es->line_count;
1199 INT orig_net_length;
1200 RECT rc;
1201
1202 if (istart == iend && delta == 0)
1203 return;
1204
1205 dc = GetDC(hwnd);
1206 if (es->font)
1207 old_font = SelectObject(dc, es->font);
1208
1209 previous_line = NULL;
1210 current_line = es->first_line_def;
1211
1212 /* Find starting line. istart must lie inside an existing line or
1213 * at the end of buffer */
1214 do {
1215 if (istart < current_line->index + current_line->length ||
1216 current_line->ending == END_0)
1217 break;
1218
1219 previous_line = current_line;
1220 current_line = current_line->next;
1221 line_index++;
1222 } while (current_line);
1223
1224 if (!current_line) /* Error occurred start is not inside previous buffer */
1225 {
1226 FIXME(" modification occurred outside buffer\n");
1227 return;
1228 }
1229
1230 /* Remember start of modifications in order to calculate update region */
1231 nstart_line = line_index;
1232 nstart_index = current_line->index;
1233
1234 /* We must start to reformat from the previous line since the modifications
1235 * may have caused the line to wrap upwards. */
1236 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1237 {
1238 line_index--;
1239 current_line = previous_line;
1240 }
1241 start_line = current_line;
1242
1243 fw = es->format_rect.right - es->format_rect.left;
1244 current_position = es->text + current_line->index;
1245 do {
1246 if (current_line != start_line)
1247 {
1248 if (!current_line || current_line->index + delta > current_position - es->text)
1249 {
1250 /* The buffer has been expanded, create a new line and
1251 insert it into the link list */
1252 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1253 new_line->next = previous_line->next;
1254 previous_line->next = new_line;
1255 current_line = new_line;
1256 es->line_count++;
1257 }
1258 else if (current_line->index + delta < current_position - es->text)
1259 {
1260 /* The previous line merged with this line so we delete this extra entry */
1261 previous_line->next = current_line->next;
1262 HeapFree(GetProcessHeap(), 0, current_line);
1263 current_line = previous_line->next;
1264 es->line_count--;
1265 continue;
1266 }
1267 else /* current_line->index + delta == current_position */
1268 {
1269 if (current_position - es->text > iend)
1270 break; /* We reached end of line modifications */
1271 /* else recalulate this line */
1272 }
1273 }
1274
1275 current_line->index = current_position - es->text;
1276 orig_net_length = current_line->net_length;
1277
1278 /* Find end of line */
1279 cp = current_position;
1280 while (*cp) {
1281 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1282 break;
1283 cp++;
1284 }
1285
1286 /* Mark type of line termination */
1287 if (!(*cp)) {
1288 current_line->ending = END_0;
1289 current_line->net_length = strlenW(current_position);
1290 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1291 current_line->ending = END_SOFT;
1292 current_line->net_length = cp - current_position - 1;
1293 } else {
1294 current_line->ending = END_HARD;
1295 current_line->net_length = cp - current_position;
1296 }
1297
1298 /* Calculate line width */
1299 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1300 current_position, current_line->net_length,
1301 es->tabs_count, es->tabs));
1302
1303 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1304 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1305 INT next = 0;
1306 INT prev;
1307 do {
1308 prev = next;
1309 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1310 prev + 1, current_line->net_length, WB_RIGHT);
1311 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1312 current_position, next, es->tabs_count, es->tabs));
1313 } while (current_line->width <= fw);
1314 if (!prev) { /* Didn't find a line break so force a break */
1315 next = 0;
1316 do {
1317 prev = next;
1318 next++;
1319 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1320 current_position, next, es->tabs_count, es->tabs));
1321 } while (current_line->width <= fw);
1322 if (!prev)
1323 prev = 1;
1324 }
1325
1326 /* If the first line we are calculating, wrapped before istart, we must
1327 * adjust istart in order for this to be reflected in the update region. */
1328 if (current_line->index == nstart_index && istart > current_line->index + prev)
1329 istart = current_line->index + prev;
1330 /* else if we are updating the previous line before the first line we
1331 * are re-calculating and it expanded */
1332 else if (current_line == start_line &&
1333 current_line->index != nstart_index && orig_net_length < prev)
1334 {
1335 /* Line expanded due to an upwards line wrap so we must partially include
1336 * previous line in update region */
1337 nstart_line = line_index;
1338 nstart_index = current_line->index;
1339 istart = current_line->index + orig_net_length;
1340 }
1341
1342 current_line->net_length = prev;
1343 current_line->ending = END_WRAP;
1344 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1345 current_line->net_length, es->tabs_count, es->tabs));
1346 }
1347
1348
1349 /* Adjust length to include line termination */
1350 switch (current_line->ending) {
1351 case END_SOFT:
1352 current_line->length = current_line->net_length + 3;
1353 break;
1354 case END_HARD:
1355 current_line->length = current_line->net_length + 2;
1356 break;
1357 case END_WRAP:
1358 case END_0:
1359 current_line->length = current_line->net_length;
1360 break;
1361 }
1362 es->text_width = max(es->text_width, current_line->width);
1363 current_position += current_line->length;
1364 previous_line = current_line;
1365 current_line = current_line->next;
1366 line_index++;
1367 } while (previous_line->ending != END_0);
1368
1369 /* Finish adjusting line indexes by delta or remove hanging lines */
1370 if (previous_line->ending == END_0)
1371 {
1372 LINEDEF *pnext = NULL;
1373
1374 previous_line->next = NULL;
1375 while (current_line)
1376 {
1377 pnext = current_line->next;
1378 HeapFree(GetProcessHeap(), 0, current_line);
1379 current_line = pnext;
1380 es->line_count--;
1381 }
1382 }
1383 else
1384 {
1385 while (current_line)
1386 {
1387 current_line->index += delta;
1388 current_line = current_line->next;
1389 }
1390 }
1391
1392 /* Calculate rest of modification rectangle */
1393 if (hrgn)
1394 {
1395 HRGN tmphrgn;
1396 /*
1397 * We calculate two rectangles. One for the first line which may have
1398 * an indent with respect to the format rect. The other is a format-width
1399 * rectangle that spans the rest of the lines that changed or moved.
1400 */
1401 rc.top = es->format_rect.top + nstart_line * es->line_height -
1402 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1403 rc.bottom = rc.top + es->line_height;
1404 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1405 es->text + nstart_index, istart - nstart_index,
1406 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1407 rc.right = es->format_rect.right;
1408 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1409
1410 rc.top = rc.bottom;
1411 rc.left = es->format_rect.left;
1412 rc.right = es->format_rect.right;
1413 /*
1414 * If lines were added or removed we must re-paint the remainder of the
1415 * lines since the remaining lines were either shifted up or down.
1416 */
1417 if (line_count < es->line_count) /* We added lines */
1418 rc.bottom = es->line_count * es->line_height;
1419 else if (line_count > es->line_count) /* We removed lines */
1420 rc.bottom = line_count * es->line_height;
1421 else
1422 rc.bottom = line_index * es->line_height;
1423 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1424 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1425 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1426 DeleteObject(tmphrgn);
1427 }
1428
1429 if (es->font)
1430 SelectObject(dc, old_font);
1431
1432 ReleaseDC(hwnd, dc);
1433}
1434
1435/*********************************************************************
1436 *
1437 * EDIT_CalcLineWidth_SL
1438 *
1439 */
1440static void EDIT_CalcLineWidth_SL(HWND hwnd, EDITSTATE *es)
1441{
1442 es->text_width = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, strlenW(es->text), FALSE));
1443}
1444
1445/*********************************************************************
1446 *
1447 * EDIT_CallWordBreakProc
1448 *
1449 * Call appropriate WordBreakProc (internal or external).
1450 *
1451 * Note: The "start" argument should always be an index referring
1452 * to es->text. The actual wordbreak proc might be
1453 * 16 bit, so we can't always pass any 32 bit LPSTR.
1454 * Hence we assume that es->text is the buffer that holds
1455 * the string under examination (we can decide this for ourselves).
1456 *
1457 */
1458/* ### start build ### */
1459extern WORD CALLBACK EDIT_CallTo16_word_lwww(EDITWORDBREAKPROC16,SEGPTR,WORD,WORD,WORD);
1460/* ### stop build ### */
1461static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1462{
1463 INT ret, iWndsLocks;
1464
1465 /* To avoid any deadlocks, all the locks on the window structures
1466 must be suspended before the control is passed to the application */
1467 iWndsLocks = WIN_SuspendWndsLock();
1468
1469#ifndef __WIN32OS2__
1470 if (es->word_break_proc16) {
1471 HGLOBAL16 hglob16;
1472 SEGPTR segptr;
1473 INT countA;
1474
1475 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1476 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1477 segptr = K32WOWGlobalLock16(hglob16);
1478 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1479 ret = (INT)EDIT_CallTo16_word_lwww(es->word_break_proc16,
1480 segptr, index, countA, action);
1481 GlobalUnlock16(hglob16);
1482 GlobalFree16(hglob16);
1483 }
1484 else
1485#endif
1486 if (es->word_break_proc)
1487 {
1488 if(es->is_unicode)
1489 {
1490 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1491
1492 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1493 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1494 ret = wbpW(es->text + start, index, count, action);
1495 }
1496 else
1497 {
1498 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1499 INT countA;
1500 CHAR *textA;
1501
1502 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1503 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1504 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1505 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1506 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1507 ret = wbpA(textA, index, countA, action);
1508 HeapFree(GetProcessHeap(), 0, textA);
1509 }
1510 }
1511 else
1512 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1513
1514 WIN_RestoreWndsLock(iWndsLocks);
1515 return ret;
1516}
1517
1518
1519/*********************************************************************
1520 *
1521 * EDIT_CharFromPos
1522 *
1523 * Beware: This is not the function called on EM_CHARFROMPOS
1524 * The position _can_ be outside the formatting / client
1525 * rectangle
1526 * The return value is only the character index
1527 *
1528 */
1529static INT EDIT_CharFromPos(HWND hwnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1530{
1531 INT index;
1532 HDC dc;
1533 HFONT old_font = 0;
1534
1535 if (es->style & ES_MULTILINE) {
1536 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1537 INT line_index = 0;
1538 LINEDEF *line_def = es->first_line_def;
1539 INT low, high;
1540 while ((line > 0) && line_def->next) {
1541 line_index += line_def->length;
1542 line_def = line_def->next;
1543 line--;
1544 }
1545 x += es->x_offset - es->format_rect.left;
1546 if (x >= line_def->width) {
1547 if (after_wrap)
1548 *after_wrap = (line_def->ending == END_WRAP);
1549 return line_index + line_def->net_length;
1550 }
1551 if (x <= 0) {
1552 if (after_wrap)
1553 *after_wrap = FALSE;
1554 return line_index;
1555 }
1556 dc = GetDC(hwnd);
1557 if (es->font)
1558 old_font = SelectObject(dc, es->font);
1559 low = line_index + 1;
1560 high = line_index + line_def->net_length + 1;
1561 while (low < high - 1)
1562 {
1563 INT mid = (low + high) / 2;
1564 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1565 else low = mid;
1566 }
1567 index = low;
1568
1569 if (after_wrap)
1570 *after_wrap = ((index == line_index + line_def->net_length) &&
1571 (line_def->ending == END_WRAP));
1572 } else {
1573 LPWSTR text;
1574 SIZE size;
1575 if (after_wrap)
1576 *after_wrap = FALSE;
1577 x -= es->format_rect.left;
1578 if (!x)
1579 return es->x_offset;
1580 text = EDIT_GetPasswordPointer_SL(es);
1581 dc = GetDC(hwnd);
1582 if (es->font)
1583 old_font = SelectObject(dc, es->font);
1584 if (x < 0)
1585 {
1586 INT low = 0;
1587 INT high = es->x_offset;
1588 while (low < high - 1)
1589 {
1590 INT mid = (low + high) / 2;
1591 GetTextExtentPoint32W( dc, text + mid,
1592 es->x_offset - mid, &size );
1593 if (size.cx > -x) low = mid;
1594 else high = mid;
1595 }
1596 index = low;
1597 }
1598 else
1599 {
1600 INT low = es->x_offset;
1601 INT high = strlenW(es->text) + 1;
1602 while (low < high - 1)
1603 {
1604 INT mid = (low + high) / 2;
1605 GetTextExtentPoint32W( dc, text + es->x_offset,
1606 mid - es->x_offset, &size );
1607 if (size.cx > x) high = mid;
1608 else low = mid;
1609 }
1610 index = low;
1611 }
1612 if (es->style & ES_PASSWORD)
1613 HeapFree(GetProcessHeap(), 0, text);
1614 }
1615 if (es->font)
1616 SelectObject(dc, old_font);
1617 ReleaseDC(hwnd, dc);
1618 return index;
1619}
1620
1621
1622/*********************************************************************
1623 *
1624 * EDIT_ConfinePoint
1625 *
1626 * adjusts the point to be within the formatting rectangle
1627 * (so CharFromPos returns the nearest _visible_ character)
1628 *
1629 */
1630static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1631{
1632 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1633 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1634}
1635
1636
1637/*********************************************************************
1638 *
1639 * EDIT_GetLineRect
1640 *
1641 * Calculates the bounding rectangle for a line from a starting
1642 * column to an ending column.
1643 *
1644 */
1645static void EDIT_GetLineRect(HWND hwnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1646{
1647 INT line_index = EDIT_EM_LineIndex(es, line);
1648
1649 if (es->style & ES_MULTILINE)
1650 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1651 else
1652 rc->top = es->format_rect.top;
1653 rc->bottom = rc->top + es->line_height;
1654 rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(hwnd, es, line_index + scol, TRUE));
1655 rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(hwnd, es, line_index + ecol, TRUE));
1656}
1657
1658
1659/*********************************************************************
1660 *
1661 * EDIT_GetPasswordPointer_SL
1662 *
1663 * note: caller should free the (optionally) allocated buffer
1664 *
1665 */
1666static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1667{
1668 if (es->style & ES_PASSWORD) {
1669 INT len = strlenW(es->text);
1670 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1671 text[len] = '\0';
1672 while(len) text[--len] = es->password_char;
1673 return text;
1674 } else
1675 return es->text;
1676}
1677
1678
1679/*********************************************************************
1680 *
1681 * EDIT_LockBuffer
1682 *
1683 * This acts as a LOCAL_Lock(), but it locks only once. This way
1684 * you can call it whenever you like, without unlocking.
1685 *
1686 */
1687static void EDIT_LockBuffer(HWND hwnd, EDITSTATE *es)
1688{
1689 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
1690 if (!es) {
1691 ERR("no EDITSTATE ... please report\n");
1692 return;
1693 }
1694 if (!es->text) {
1695 CHAR *textA = NULL;
1696 UINT countA = 0;
1697 BOOL _16bit = FALSE;
1698
1699 if(es->hloc32W)
1700 {
1701 if(es->hloc32A)
1702 {
1703 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1704 textA = LocalLock(es->hloc32A);
1705 countA = strlen(textA) + 1;
1706 }
1707 else if(es->hloc16)
1708 {
1709 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1710 textA = LOCAL_Lock(hInstance, es->hloc16);
1711 countA = strlen(textA) + 1;
1712 _16bit = TRUE;
1713 }
1714 }
1715 else {
1716 ERR("no buffer ... please report\n");
1717 return;
1718 }
1719
1720 if(textA)
1721 {
1722 HLOCAL hloc32W_new;
1723 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1724 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1725 if(countW_new > es->buffer_size + 1)
1726 {
1727 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1728 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1729 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1730 if(hloc32W_new)
1731 {
1732 es->hloc32W = hloc32W_new;
1733 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1734 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1735 }
1736 else
1737 WARN("FAILED! Will synchronize partially\n");
1738 }
1739 }
1740
1741 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1742 es->text = LocalLock(es->hloc32W);
1743
1744 if(textA)
1745 {
1746 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1747 if(_16bit)
1748 LOCAL_Unlock(hInstance, es->hloc16);
1749 else
1750 LocalUnlock(es->hloc32A);
1751 }
1752 }
1753 es->lock_count++;
1754}
1755
1756
1757/*********************************************************************
1758 *
1759 * EDIT_SL_InvalidateText
1760 *
1761 * Called from EDIT_InvalidateText().
1762 * Does the job for single-line controls only.
1763 *
1764 */
1765static void EDIT_SL_InvalidateText(HWND hwnd, EDITSTATE *es, INT start, INT end)
1766{
1767 RECT line_rect;
1768 RECT rc;
1769
1770 EDIT_GetLineRect(hwnd, es, 0, start, end, &line_rect);
1771 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1772 EDIT_UpdateText(hwnd, es, &rc, FALSE);
1773}
1774
1775
1776/*********************************************************************
1777 *
1778 * EDIT_ML_InvalidateText
1779 *
1780 * Called from EDIT_InvalidateText().
1781 * Does the job for multi-line controls only.
1782 *
1783 */
1784static void EDIT_ML_InvalidateText(HWND hwnd, EDITSTATE *es, INT start, INT end)
1785{
1786 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1787 INT sl = EDIT_EM_LineFromChar(es, start);
1788 INT el = EDIT_EM_LineFromChar(es, end);
1789 INT sc;
1790 INT ec;
1791 RECT rc1;
1792 RECT rcWnd;
1793 RECT rcLine;
1794 RECT rcUpdate;
1795 INT l;
1796
1797 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1798 return;
1799
1800 sc = start - EDIT_EM_LineIndex(es, sl);
1801 ec = end - EDIT_EM_LineIndex(es, el);
1802 if (sl < es->y_offset) {
1803 sl = es->y_offset;
1804 sc = 0;
1805 }
1806 if (el > es->y_offset + vlc) {
1807 el = es->y_offset + vlc;
1808 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1809 }
1810 GetClientRect(hwnd, &rc1);
1811 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1812 if (sl == el) {
1813 EDIT_GetLineRect(hwnd, es, sl, sc, ec, &rcLine);
1814 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1815 EDIT_UpdateText(hwnd, es, &rcUpdate, FALSE);
1816 } else {
1817 EDIT_GetLineRect(hwnd, es, sl, sc,
1818 EDIT_EM_LineLength(es,
1819 EDIT_EM_LineIndex(es, sl)),
1820 &rcLine);
1821 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1822 EDIT_UpdateText(hwnd, es, &rcUpdate, FALSE);
1823 for (l = sl + 1 ; l < el ; l++) {
1824 EDIT_GetLineRect(hwnd, es, l, 0,
1825 EDIT_EM_LineLength(es,
1826 EDIT_EM_LineIndex(es, l)),
1827 &rcLine);
1828 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1829 EDIT_UpdateText(hwnd, es, &rcUpdate, FALSE);
1830 }
1831 EDIT_GetLineRect(hwnd, es, el, 0, ec, &rcLine);
1832 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1833 EDIT_UpdateText(hwnd, es, &rcUpdate, FALSE);
1834 }
1835}
1836
1837
1838/*********************************************************************
1839 *
1840 * EDIT_InvalidateText
1841 *
1842 * Invalidate the text from offset start upto, but not including,
1843 * offset end. Useful for (re)painting the selection.
1844 * Regions outside the linewidth are not invalidated.
1845 * end == -1 means end == TextLength.
1846 * start and end need not be ordered.
1847 *
1848 */
1849static void EDIT_InvalidateText(HWND hwnd, EDITSTATE *es, INT start, INT end)
1850{
1851 if (end == start)
1852 return;
1853
1854 if (end == -1)
1855 end = strlenW(es->text);
1856
1857 ORDER_INT(start, end);
1858
1859 if (es->style & ES_MULTILINE)
1860 EDIT_ML_InvalidateText(hwnd, es, start, end);
1861 else
1862 EDIT_SL_InvalidateText(hwnd, es, start, end);
1863}
1864
1865
1866/*********************************************************************
1867 *
1868 * EDIT_MakeFit
1869 *
1870 * Try to fit size + 1 characters in the buffer. Constrain to limits.
1871 *
1872 */
1873static BOOL EDIT_MakeFit(HWND hwnd, EDITSTATE *es, UINT size)
1874{
1875 HLOCAL hNew32W;
1876
1877 if (size <= es->buffer_size)
1878 return TRUE;
1879#ifndef __WIN32OS2__
1880//SvL: EM_SETTEXTLIMIT has no effect in
1881// NT4, SP6 (EM_GETTEXTLIMIT only returns that value).
1882// Limits are simply ignored, no EN_MAXTEXT notification is ever sent.
1883// (fixes license edit control in Microsoft Visual C++ 4.2 install)
1884
1885 if (size > es->buffer_limit) {
1886 EDIT_NOTIFY_PARENT(hwnd, es, EN_MAXTEXT, "EN_MAXTEXT");
1887 return FALSE;
1888 }
1889 if (size > es->buffer_limit)
1890 size = es->buffer_limit;
1891#endif
1892
1893 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1894
1895 /* Force edit to unlock it's buffer. es->text now NULL */
1896 EDIT_UnlockBuffer(hwnd, es, TRUE);
1897
1898 if (es->hloc32W) {
1899 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1900 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1901 TRACE("Old 32 bit handle %08x, new handle %08x\n", es->hloc32W, hNew32W);
1902 es->hloc32W = hNew32W;
1903 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1904 }
1905 }
1906
1907 EDIT_LockBuffer(hwnd, es);
1908
1909 if (es->buffer_size < size) {
1910 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1911 EDIT_NOTIFY_PARENT(hwnd, es, EN_ERRSPACE, "EN_ERRSPACE");
1912 return FALSE;
1913 } else {
1914 TRACE("We now have %d+1\n", es->buffer_size);
1915 return TRUE;
1916 }
1917}
1918
1919
1920/*********************************************************************
1921 *
1922 * EDIT_MakeUndoFit
1923 *
1924 * Try to fit size + 1 bytes in the undo buffer.
1925 *
1926 */
1927static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1928{
1929 UINT alloc_size;
1930
1931 if (size <= es->undo_buffer_size)
1932 return TRUE;
1933
1934 TRACE("trying to ReAlloc to %d+1\n", size);
1935
1936 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1937 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1938#ifdef __WIN32OS2__
1939 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1940#else
1941 es->undo_buffer_size = alloc_size/sizeof(WCHAR);
1942#endif
1943 return TRUE;
1944 }
1945 else
1946 {
1947 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1948 return FALSE;
1949 }
1950}
1951
1952
1953/*********************************************************************
1954 *
1955 * EDIT_MoveBackward
1956 *
1957 */
1958static void EDIT_MoveBackward(HWND hwnd, EDITSTATE *es, BOOL extend)
1959{
1960 INT e = es->selection_end;
1961
1962 if (e) {
1963 e--;
1964 if ((es->style & ES_MULTILINE) && e &&
1965 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1966 e--;
1967 if (e && (es->text[e - 1] == '\r'))
1968 e--;
1969 }
1970 }
1971 EDIT_EM_SetSel(hwnd, es, extend ? es->selection_start : e, e, FALSE);
1972 EDIT_EM_ScrollCaret(hwnd, es);
1973}
1974
1975
1976/*********************************************************************
1977 *
1978 * EDIT_MoveDown_ML
1979 *
1980 * Only for multi line controls
1981 * Move the caret one line down, on a column with the nearest
1982 * x coordinate on the screen (might be a different column).
1983 *
1984 */
1985static void EDIT_MoveDown_ML(HWND hwnd, EDITSTATE *es, BOOL extend)
1986{
1987 INT s = es->selection_start;
1988 INT e = es->selection_end;
1989 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1990 LRESULT pos = EDIT_EM_PosFromChar(hwnd, es, e, after_wrap);
1991 INT x = SLOWORD(pos);
1992 INT y = SHIWORD(pos);
1993
1994 e = EDIT_CharFromPos(hwnd, es, x, y + es->line_height, &after_wrap);
1995 if (!extend)
1996 s = e;
1997 EDIT_EM_SetSel(hwnd, es, s, e, after_wrap);
1998 EDIT_EM_ScrollCaret(hwnd, es);
1999}
2000
2001
2002/*********************************************************************
2003 *
2004 * EDIT_MoveEnd
2005 *
2006 */
2007static void EDIT_MoveEnd(HWND hwnd, EDITSTATE *es, BOOL extend)
2008{
2009 BOOL after_wrap = FALSE;
2010 INT e;
2011
2012 /* Pass a high value in x to make sure of receiving the end of the line */
2013 if (es->style & ES_MULTILINE)
2014 e = EDIT_CharFromPos(hwnd, es, 0x3fffffff,
2015 HIWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2016 else
2017 e = strlenW(es->text);
2018 EDIT_EM_SetSel(hwnd, es, extend ? es->selection_start : e, e, after_wrap);
2019 EDIT_EM_ScrollCaret(hwnd, es);
2020}
2021
2022
2023/*********************************************************************
2024 *
2025 * EDIT_MoveForward
2026 *
2027 */
2028static void EDIT_MoveForward(HWND hwnd, EDITSTATE *es, BOOL extend)
2029{
2030 INT e = es->selection_end;
2031
2032 if (es->text[e]) {
2033 e++;
2034 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2035 if (es->text[e] == '\n')
2036 e++;
2037 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2038 e += 2;
2039 }
2040 }
2041 EDIT_EM_SetSel(hwnd, es, extend ? es->selection_start : e, e, FALSE);
2042 EDIT_EM_ScrollCaret(hwnd, es);
2043}
2044
2045
2046/*********************************************************************
2047 *
2048 * EDIT_MoveHome
2049 *
2050 * Home key: move to beginning of line.
2051 *
2052 */
2053static void EDIT_MoveHome(HWND hwnd, EDITSTATE *es, BOOL extend)
2054{
2055 INT e;
2056
2057 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2058 if (es->style & ES_MULTILINE)
2059 e = EDIT_CharFromPos(hwnd, es, -es->x_offset,
2060 HIWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2061 else
2062 e = 0;
2063 EDIT_EM_SetSel(hwnd, es, extend ? es->selection_start : e, e, FALSE);
2064 EDIT_EM_ScrollCaret(hwnd, es);
2065}
2066
2067
2068/*********************************************************************
2069 *
2070 * EDIT_MovePageDown_ML
2071 *
2072 * Only for multi line controls
2073 * Move the caret one page down, on a column with the nearest
2074 * x coordinate on the screen (might be a different column).
2075 *
2076 */
2077static void EDIT_MovePageDown_ML(HWND hwnd, EDITSTATE *es, BOOL extend)
2078{
2079 INT s = es->selection_start;
2080 INT e = es->selection_end;
2081 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2082 LRESULT pos = EDIT_EM_PosFromChar(hwnd, es, e, after_wrap);
2083 INT x = SLOWORD(pos);
2084 INT y = SHIWORD(pos);
2085
2086 e = EDIT_CharFromPos(hwnd, es, x,
2087 y + (es->format_rect.bottom - es->format_rect.top),
2088 &after_wrap);
2089 if (!extend)
2090 s = e;
2091 EDIT_EM_SetSel(hwnd, es, s, e, after_wrap);
2092 EDIT_EM_ScrollCaret(hwnd, es);
2093}
2094
2095
2096/*********************************************************************
2097 *
2098 * EDIT_MovePageUp_ML
2099 *
2100 * Only for multi line controls
2101 * Move the caret one page up, on a column with the nearest
2102 * x coordinate on the screen (might be a different column).
2103 *
2104 */
2105static void EDIT_MovePageUp_ML(HWND hwnd, EDITSTATE *es, BOOL extend)
2106{
2107 INT s = es->selection_start;
2108 INT e = es->selection_end;
2109 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2110 LRESULT pos = EDIT_EM_PosFromChar(hwnd, es, e, after_wrap);
2111 INT x = SLOWORD(pos);
2112 INT y = SHIWORD(pos);
2113
2114 e = EDIT_CharFromPos(hwnd, es, x,
2115 y - (es->format_rect.bottom - es->format_rect.top),
2116 &after_wrap);
2117 if (!extend)
2118 s = e;
2119 EDIT_EM_SetSel(hwnd, es, s, e, after_wrap);
2120 EDIT_EM_ScrollCaret(hwnd, es);
2121}
2122
2123
2124/*********************************************************************
2125 *
2126 * EDIT_MoveUp_ML
2127 *
2128 * Only for multi line controls
2129 * Move the caret one line up, on a column with the nearest
2130 * x coordinate on the screen (might be a different column).
2131 *
2132 */
2133static void EDIT_MoveUp_ML(HWND hwnd, EDITSTATE *es, BOOL extend)
2134{
2135 INT s = es->selection_start;
2136 INT e = es->selection_end;
2137 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2138 LRESULT pos = EDIT_EM_PosFromChar(hwnd, es, e, after_wrap);
2139 INT x = SLOWORD(pos);
2140 INT y = SHIWORD(pos);
2141
2142 e = EDIT_CharFromPos(hwnd, es, x, y - es->line_height, &after_wrap);
2143 if (!extend)
2144 s = e;
2145 EDIT_EM_SetSel(hwnd, es, s, e, after_wrap);
2146 EDIT_EM_ScrollCaret(hwnd, es);
2147}
2148
2149
2150/*********************************************************************
2151 *
2152 * EDIT_MoveWordBackward
2153 *
2154 */
2155static void EDIT_MoveWordBackward(HWND hwnd, EDITSTATE *es, BOOL extend)
2156{
2157 INT s = es->selection_start;
2158 INT e = es->selection_end;
2159 INT l;
2160 INT ll;
2161 INT li;
2162
2163 l = EDIT_EM_LineFromChar(es, e);
2164 ll = EDIT_EM_LineLength(es, e);
2165 li = EDIT_EM_LineIndex(es, l);
2166 if (e - li == 0) {
2167 if (l) {
2168 li = EDIT_EM_LineIndex(es, l - 1);
2169 e = li + EDIT_EM_LineLength(es, li);
2170 }
2171 } else {
2172 e = li + (INT)EDIT_CallWordBreakProc(es,
2173 li, e - li, ll, WB_LEFT);
2174 }
2175 if (!extend)
2176 s = e;
2177 EDIT_EM_SetSel(hwnd, es, s, e, FALSE);
2178 EDIT_EM_ScrollCaret(hwnd, es);
2179}
2180
2181
2182/*********************************************************************
2183 *
2184 * EDIT_MoveWordForward
2185 *
2186 */
2187static void EDIT_MoveWordForward(HWND hwnd, EDITSTATE *es, BOOL extend)
2188{
2189 INT s = es->selection_start;
2190 INT e = es->selection_end;
2191 INT l;
2192 INT ll;
2193 INT li;
2194
2195 l = EDIT_EM_LineFromChar(es, e);
2196 ll = EDIT_EM_LineLength(es, e);
2197 li = EDIT_EM_LineIndex(es, l);
2198 if (e - li == ll) {
2199 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2200 e = EDIT_EM_LineIndex(es, l + 1);
2201 } else {
2202 e = li + EDIT_CallWordBreakProc(es,
2203 li, e - li + 1, ll, WB_RIGHT);
2204 }
2205 if (!extend)
2206 s = e;
2207 EDIT_EM_SetSel(hwnd, es, s, e, FALSE);
2208 EDIT_EM_ScrollCaret(hwnd, es);
2209}
2210
2211
2212/*********************************************************************
2213 *
2214 * EDIT_PaintLine
2215 *
2216 */
2217static void EDIT_PaintLine(HWND hwnd, EDITSTATE *es, HDC dc, INT line, BOOL rev)
2218{
2219 INT s = es->selection_start;
2220 INT e = es->selection_end;
2221 INT li;
2222 INT ll;
2223 INT x;
2224 INT y;
2225 LRESULT pos;
2226
2227 if (es->style & ES_MULTILINE) {
2228 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2229 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2230 return;
2231 } else if (line)
2232 return;
2233
2234 TRACE("line=%d\n", line);
2235
2236 pos = EDIT_EM_PosFromChar(hwnd, es, EDIT_EM_LineIndex(es, line), FALSE);
2237 x = SLOWORD(pos);
2238 y = SHIWORD(pos);
2239 li = EDIT_EM_LineIndex(es, line);
2240 ll = EDIT_EM_LineLength(es, li);
2241 s = es->selection_start;
2242 e = es->selection_end;
2243 ORDER_INT(s, e);
2244 s = min(li + ll, max(li, s));
2245 e = min(li + ll, max(li, e));
2246 if (rev && (s != e) &&
2247 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2248 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2249 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2250 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2251 } else
2252 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2253}
2254
2255
2256/*********************************************************************
2257 *
2258 * EDIT_PaintText
2259 *
2260 */
2261static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2262{
2263 COLORREF BkColor;
2264 COLORREF TextColor;
2265 INT ret;
2266 INT li;
2267 INT BkMode;
2268 SIZE size;
2269
2270 if (!count)
2271 return 0;
2272 BkMode = GetBkMode(dc);
2273 BkColor = GetBkColor(dc);
2274 TextColor = GetTextColor(dc);
2275 if (rev) {
2276 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2277 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2278 SetBkMode( dc, OPAQUE);
2279 }
2280 li = EDIT_EM_LineIndex(es, line);
2281 if (es->style & ES_MULTILINE) {
2282 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2283 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2284 } else {
2285 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2286 TextOutW(dc, x, y, text + li + col, count);
2287 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2288 ret = size.cx;
2289 if (es->style & ES_PASSWORD)
2290 HeapFree(GetProcessHeap(), 0, text);
2291 }
2292 if (rev) {
2293 SetBkColor(dc, BkColor);
2294 SetTextColor(dc, TextColor);
2295 SetBkMode( dc, BkMode);
2296 }
2297 return ret;
2298}
2299
2300
2301/*********************************************************************
2302 *
2303 * EDIT_SetCaretPos
2304 *
2305 */
2306static void EDIT_SetCaretPos(HWND hwnd, EDITSTATE *es, INT pos,
2307 BOOL after_wrap)
2308{
2309 LRESULT res = EDIT_EM_PosFromChar(hwnd, es, pos, after_wrap);
2310 SetCaretPos(SLOWORD(res), SHIWORD(res));
2311}
2312
2313
2314/*********************************************************************
2315 *
2316 * EDIT_SetRectNP
2317 *
2318 * note: this is not (exactly) the handler called on EM_SETRECTNP
2319 * it is also used to set the rect of a single line control
2320 *
2321 */
2322static void EDIT_SetRectNP(HWND hwnd, EDITSTATE *es, LPRECT rc)
2323{
2324 CopyRect(&es->format_rect, rc);
2325 if (es->style & WS_BORDER) {
2326 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2327 if(TWEAK_WineLook == WIN31_LOOK)
2328 bw += 2;
2329 es->format_rect.left += bw;
2330 es->format_rect.top += bw;
2331 es->format_rect.right -= bw;
2332 es->format_rect.bottom -= bw;
2333 }
2334 es->format_rect.left += es->left_margin;
2335 es->format_rect.right -= es->right_margin;
2336 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2337 if (es->style & ES_MULTILINE)
2338 {
2339 INT fw, vlc, max_x_offset, max_y_offset;
2340
2341 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2342 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2343
2344 /* correct es->x_offset */
2345 fw = es->format_rect.right - es->format_rect.left;
2346 max_x_offset = es->text_width - fw;
2347 if(max_x_offset < 0) max_x_offset = 0;
2348 if(es->x_offset > max_x_offset)
2349 es->x_offset = max_x_offset;
2350
2351 /* correct es->y_offset */
2352 max_y_offset = es->line_count - vlc;
2353 if(max_y_offset < 0) max_y_offset = 0;
2354 if(es->y_offset > max_y_offset)
2355 es->y_offset = max_y_offset;
2356
2357 /* force scroll info update */
2358 EDIT_UpdateScrollInfo(hwnd, es);
2359 }
2360 else
2361 /* Windows doesn't care to fix text placement for SL controls */
2362 es->format_rect.bottom = es->format_rect.top + es->line_height;
2363
2364 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2365 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
2366}
2367
2368
2369/*********************************************************************
2370 *
2371 * EDIT_UnlockBuffer
2372 *
2373 */
2374static void EDIT_UnlockBuffer(HWND hwnd, EDITSTATE *es, BOOL force)
2375{
2376 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
2377
2378 /* Edit window might be already destroyed */
2379 if(!IsWindow(hwnd))
2380 {
2381 WARN("edit hwnd %04x already destroyed\n", hwnd);
2382 return;
2383 }
2384
2385 if (!es) {
2386 ERR("no EDITSTATE ... please report\n");
2387 return;
2388 }
2389 if (!es->lock_count) {
2390 ERR("lock_count == 0 ... please report\n");
2391 return;
2392 }
2393 if (!es->text) {
2394 ERR("es->text == 0 ... please report\n");
2395 return;
2396 }
2397
2398 if (force || (es->lock_count == 1)) {
2399 if (es->hloc32W) {
2400 CHAR *textA = NULL;
2401 BOOL _16bit = FALSE;
2402 UINT countA = 0;
2403 UINT countW = strlenW(es->text) + 1;
2404
2405 if(es->hloc32A)
2406 {
2407 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2408 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2409 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2410 countA = LocalSize(es->hloc32A);
2411 if(countA_new > countA)
2412 {
2413 HLOCAL hloc32A_new;
2414 UINT alloc_size = ROUND_TO_GROW(countA_new);
2415 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2416 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2417 if(hloc32A_new)
2418 {
2419 es->hloc32A = hloc32A_new;
2420 countA = LocalSize(hloc32A_new);
2421 TRACE("Real new size %d bytes\n", countA);
2422 }
2423 else
2424 WARN("FAILED! Will synchronize partially\n");
2425 }
2426 textA = LocalLock(es->hloc32A);
2427 }
2428 else if(es->hloc16)
2429 {
2430 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2431 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2432 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2433 countA = LOCAL_Size(hInstance, es->hloc16);
2434 if(countA_new > countA)
2435 {
2436 HLOCAL16 hloc16_new;
2437 UINT alloc_size = ROUND_TO_GROW(countA_new);
2438 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2439 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2440 if(hloc16_new)
2441 {
2442 es->hloc16 = hloc16_new;
2443 countA = LOCAL_Size(hInstance, hloc16_new);
2444 TRACE("Real new size %d bytes\n", countA);
2445 }
2446 else
2447 WARN("FAILED! Will synchronize partially\n");
2448 }
2449 textA = LOCAL_Lock(hInstance, es->hloc16);
2450 _16bit = TRUE;
2451 }
2452 if(textA)
2453 {
2454 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2455 if(_16bit)
2456 LOCAL_Unlock(hInstance, es->hloc16);
2457 else
2458 LocalUnlock(es->hloc32A);
2459 }
2460
2461 LocalUnlock(es->hloc32W);
2462 es->text = NULL;
2463 }
2464 else {
2465 ERR("no buffer ... please report\n");
2466 return;
2467 }
2468 }
2469 es->lock_count--;
2470}
2471
2472
2473/*********************************************************************
2474 *
2475 * EDIT_UpdateScrollInfo
2476 *
2477 */
2478static void EDIT_UpdateScrollInfo(HWND hwnd, EDITSTATE *es)
2479{
2480 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2481 {
2482 SCROLLINFO si;
2483 si.cbSize = sizeof(SCROLLINFO);
2484 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2485 si.nMin = 0;
2486 si.nMax = es->line_count - 1;
2487 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2488 si.nPos = es->y_offset;
2489 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2490 si.nMin, si.nMax, si.nPage, si.nPos);
2491 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2492 }
2493
2494 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2495 {
2496 SCROLLINFO si;
2497 si.cbSize = sizeof(SCROLLINFO);
2498 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2499 si.nMin = 0;
2500 si.nMax = es->text_width - 1;
2501 si.nPage = es->format_rect.right - es->format_rect.left;
2502 si.nPos = es->x_offset;
2503 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2504 si.nMin, si.nMax, si.nPage, si.nPos);
2505 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2506 }
2507}
2508
2509/*********************************************************************
2510 *
2511 * EDIT_WordBreakProc
2512 *
2513 * Find the beginning of words.
2514 * Note: unlike the specs for a WordBreakProc, this function only
2515 * allows to be called without linebreaks between s[0] upto
2516 * s[count - 1]. Remember it is only called
2517 * internally, so we can decide this for ourselves.
2518 *
2519 */
2520static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2521{
2522 INT ret = 0;
2523
2524 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2525
2526 if(!s) return 0;
2527
2528 switch (action) {
2529 case WB_LEFT:
2530 if (!count)
2531 break;
2532 if (index)
2533 index--;
2534 if (s[index] == ' ') {
2535 while (index && (s[index] == ' '))
2536 index--;
2537 if (index) {
2538 while (index && (s[index] != ' '))
2539 index--;
2540 if (s[index] == ' ')
2541 index++;
2542 }
2543 } else {
2544 while (index && (s[index] != ' '))
2545 index--;
2546 if (s[index] == ' ')
2547 index++;
2548 }
2549 ret = index;
2550 break;
2551 case WB_RIGHT:
2552 if (!count)
2553 break;
2554 if (index)
2555 index--;
2556 if (s[index] == ' ')
2557 while ((index < count) && (s[index] == ' ')) index++;
2558 else {
2559 while (s[index] && (s[index] != ' ') && (index < count))
2560 index++;
2561 while ((s[index] == ' ') && (index < count)) index++;
2562 }
2563 ret = index;
2564 break;
2565 case WB_ISDELIMITER:
2566 ret = (s[index] == ' ');
2567 break;
2568 default:
2569 ERR("unknown action code, please report !\n");
2570 break;
2571 }
2572 return ret;
2573}
2574
2575
2576/*********************************************************************
2577 *
2578 * EM_CHARFROMPOS
2579 *
2580 * returns line number (not index) in high-order word of result.
2581 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2582 * to Richedit, not to the edit control. Original documentation is valid.
2583 * FIXME: do the specs mean to return -1 if outside client area or
2584 * if outside formatting rectangle ???
2585 *
2586 */
2587static LRESULT EDIT_EM_CharFromPos(HWND hwnd, EDITSTATE *es, INT x, INT y)
2588{
2589 POINT pt;
2590 RECT rc;
2591 INT index;
2592
2593 pt.x = x;
2594 pt.y = y;
2595 GetClientRect(hwnd, &rc);
2596 if (!PtInRect(&rc, pt))
2597 return -1;
2598
2599 index = EDIT_CharFromPos(hwnd, es, x, y, NULL);
2600 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2601}
2602
2603
2604/*********************************************************************
2605 *
2606 * EM_FMTLINES
2607 *
2608 * Enable or disable soft breaks.
2609 */
2610static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2611{
2612 es->flags &= ~EF_USE_SOFTBRK;
2613 if (add_eol) {
2614 es->flags |= EF_USE_SOFTBRK;
2615 FIXME("soft break enabled, not implemented\n");
2616 }
2617 return add_eol;
2618}
2619
2620
2621/*********************************************************************
2622 *
2623 * EM_GETHANDLE
2624 *
2625 * Hopefully this won't fire back at us.
2626 * We always start with a fixed buffer in the local heap.
2627 * Despite of the documentation says that the local heap is used
2628 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2629 * buffer on the local heap.
2630 *
2631 */
2632static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2633{
2634 HLOCAL hLocal;
2635
2636 if (!(es->style & ES_MULTILINE))
2637 return 0;
2638
2639 if(es->is_unicode)
2640 hLocal = es->hloc32W;
2641 else
2642 {
2643 if(!es->hloc32A)
2644 {
2645 CHAR *textA;
2646 UINT countA, alloc_size;
2647 TRACE("Allocating 32-bit ANSI alias buffer\n");
2648 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2649 alloc_size = ROUND_TO_GROW(countA);
2650 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2651 {
2652 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2653 return 0;
2654 }
2655 textA = LocalLock(es->hloc32A);
2656 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2657 LocalUnlock(es->hloc32A);
2658 }
2659 hLocal = es->hloc32A;
2660 }
2661
2662 TRACE("Returning %04X, LocalSize() = %d\n", hLocal, LocalSize(hLocal));
2663 return hLocal;
2664}
2665
2666#ifndef __WIN32OS2__
2667/*********************************************************************
2668 *
2669 * EM_GETHANDLE16
2670 *
2671 * Hopefully this won't fire back at us.
2672 * We always start with a buffer in 32 bit linear memory.
2673 * However, with this message a 16 bit application requests
2674 * a handle of 16 bit local heap memory, where it expects to find
2675 * the text.
2676 * It's a pitty that from this moment on we have to use this
2677 * local heap, because applications may rely on the handle
2678 * in the future.
2679 *
2680 * In this function we'll try to switch to local heap.
2681 */
2682static HLOCAL16 EDIT_EM_GetHandle16(HWND hwnd, EDITSTATE *es)
2683{
2684 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
2685 CHAR *textA;
2686 UINT countA, alloc_size;
2687
2688 if (!(es->style & ES_MULTILINE))
2689 return 0;
2690
2691 if (es->hloc16)
2692 return es->hloc16;
2693
2694 if (!LOCAL_HeapSize(hInstance)) {
2695 if (!LocalInit16(hInstance, 0,
2696 GlobalSize16(hInstance))) {
2697 ERR("could not initialize local heap\n");
2698 return 0;
2699 }
2700 TRACE("local heap initialized\n");
2701 }
2702
2703 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2704 alloc_size = ROUND_TO_GROW(countA);
2705
2706 TRACE("Allocating 16-bit ANSI alias buffer\n");
2707 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2708 ERR("could not allocate new 16 bit buffer\n");
2709 return 0;
2710 }
2711
2712 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2713 ERR("could not lock new 16 bit buffer\n");
2714 LOCAL_Free(hInstance, es->hloc16);
2715 es->hloc16 = 0;
2716 return 0;
2717 }
2718
2719 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2720 LOCAL_Unlock(hInstance, es->hloc16);
2721
2722 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2723 return es->hloc16;
2724}
2725#endif
2726
2727/*********************************************************************
2728 *
2729 * EM_GETLINE
2730 *
2731 */
2732static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2733{
2734 LPWSTR src;
2735 INT line_len, dst_len;
2736 INT i;
2737
2738 if (es->style & ES_MULTILINE) {
2739 if (line >= es->line_count)
2740 return 0;
2741 } else
2742 line = 0;
2743 i = EDIT_EM_LineIndex(es, line);
2744 src = es->text + i;
2745 line_len = EDIT_EM_LineLength(es, i);
2746 dst_len = *(WORD *)lParam;
2747 if(unicode)
2748 {
2749 LPWSTR dst = (LPWSTR)lParam;
2750 if(dst_len <= line_len)
2751 {
2752 memcpy(dst, src, dst_len * sizeof(WCHAR));
2753 return dst_len;
2754 }
2755 else /* Append 0 if enough space */
2756 {
2757 memcpy(dst, src, line_len * sizeof(WCHAR));
2758 dst[line_len] = 0;
2759 return line_len;
2760 }
2761 }
2762 else
2763 {
2764 LPSTR dst = (LPSTR)lParam;
2765 INT ret;
2766 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2767 if(!ret) /* Insufficient buffer size */
2768 return dst_len;
2769 if(ret < dst_len) /* Append 0 if enough space */
2770 dst[ret] = 0;
2771 return ret;
2772 }
2773}
2774
2775
2776/*********************************************************************
2777 *
2778 * EM_GETSEL
2779 *
2780 */
2781static LRESULT EDIT_EM_GetSel(EDITSTATE *es, LPUINT start, LPUINT end)
2782{
2783 UINT s = es->selection_start;
2784 UINT e = es->selection_end;
2785
2786 ORDER_UINT(s, e);
2787 if (start)
2788 *start = s;
2789 if (end)
2790 *end = e;
2791 return MAKELONG(s, e);
2792}
2793
2794
2795/*********************************************************************
2796 *
2797 * EM_GETTHUMB
2798 *
2799 * FIXME: is this right ? (or should it be only VSCROLL)
2800 * (and maybe only for edit controls that really have their
2801 * own scrollbars) (and maybe only for multiline controls ?)
2802 * All in all: very poorly documented
2803 *
2804 */
2805static LRESULT EDIT_EM_GetThumb(HWND hwnd, EDITSTATE *es)
2806{
2807 return MAKELONG(EDIT_WM_VScroll(hwnd, es, EM_GETTHUMB16, 0),
2808 EDIT_WM_HScroll(hwnd, es, EM_GETTHUMB16, 0));
2809}
2810
2811
2812/*********************************************************************
2813 *
2814 * EM_LINEFROMCHAR
2815 *
2816 */
2817static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2818{
2819 INT line;
2820 LINEDEF *line_def;
2821
2822 if (!(es->style & ES_MULTILINE))
2823 return 0;
2824 if (index > (INT)strlenW(es->text))
2825 return es->line_count - 1;
2826 if (index == -1)
2827 index = min(es->selection_start, es->selection_end);
2828
2829 line = 0;
2830 line_def = es->first_line_def;
2831 index -= line_def->length;
2832 while ((index >= 0) && line_def->next) {
2833 line++;
2834 line_def = line_def->next;
2835 index -= line_def->length;
2836 }
2837 return line;
2838}
2839
2840
2841/*********************************************************************
2842 *
2843 * EM_LINEINDEX
2844 *
2845 */
2846static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2847{
2848 INT line_index;
2849 LINEDEF *line_def;
2850
2851 if (!(es->style & ES_MULTILINE))
2852 return 0;
2853 if (line >= es->line_count)
2854 return -1;
2855
2856 line_index = 0;
2857 line_def = es->first_line_def;
2858 if (line == -1) {
2859 INT index = es->selection_end - line_def->length;
2860 while ((index >= 0) && line_def->next) {
2861 line_index += line_def->length;
2862 line_def = line_def->next;
2863 index -= line_def->length;
2864 }
2865 } else {
2866 while (line > 0) {
2867 line_index += line_def->length;
2868 line_def = line_def->next;
2869 line--;
2870 }
2871 }
2872 return line_index;
2873}
2874
2875
2876/*********************************************************************
2877 *
2878 * EM_LINELENGTH
2879 *
2880 */
2881static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2882{
2883 LINEDEF *line_def;
2884
2885 if (!(es->style & ES_MULTILINE))
2886 return strlenW(es->text);
2887
2888 if (index == -1) {
2889 /* get the number of remaining non-selected chars of selected lines */
2890 INT32 l; /* line number */
2891 INT32 li; /* index of first char in line */
2892 INT32 count;
2893 l = EDIT_EM_LineFromChar(es, es->selection_start);
2894 /* # chars before start of selection area */
2895 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2896 l = EDIT_EM_LineFromChar(es, es->selection_end);
2897 /* # chars after end of selection */
2898 li = EDIT_EM_LineIndex(es, l);
2899 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2900 return count;
2901 }
2902 line_def = es->first_line_def;
2903 index -= line_def->length;
2904 while ((index >= 0) && line_def->next) {
2905 line_def = line_def->next;
2906 index -= line_def->length;
2907 }
2908 return line_def->net_length;
2909}
2910
2911
2912/*********************************************************************
2913 *
2914 * EM_LINESCROLL
2915 *
2916 * NOTE: dx is in average character widths, dy - in lines;
2917 *
2918 */
2919static BOOL EDIT_EM_LineScroll(HWND hwnd, EDITSTATE *es, INT dx, INT dy)
2920{
2921 if (!(es->style & ES_MULTILINE))
2922 return FALSE;
2923
2924 dx *= es->char_width;
2925 return EDIT_EM_LineScroll_internal(hwnd, es, dx, dy);
2926}
2927
2928/*********************************************************************
2929 *
2930 * EDIT_EM_LineScroll_internal
2931 *
2932 * Version of EDIT_EM_LineScroll for internal use.
2933 * It doesn't refuse if ES_MULTILINE is set and assumes that
2934 * dx is in pixels, dy - in lines.
2935 *
2936 */
2937static BOOL EDIT_EM_LineScroll_internal(HWND hwnd, EDITSTATE *es, INT dx, INT dy)
2938{
2939 INT nyoff;
2940 INT x_offset_in_pixels;
2941
2942 if (es->style & ES_MULTILINE)
2943 {
2944 x_offset_in_pixels = es->x_offset;
2945 }
2946 else
2947 {
2948 dy = 0;
2949 x_offset_in_pixels = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, es->x_offset, FALSE));
2950 }
2951
2952 if (-dx > x_offset_in_pixels)
2953 dx = -x_offset_in_pixels;
2954 if (dx > es->text_width - x_offset_in_pixels)
2955 dx = es->text_width - x_offset_in_pixels;
2956 nyoff = max(0, es->y_offset + dy);
2957 if (nyoff >= es->line_count)
2958 nyoff = es->line_count - 1;
2959 dy = (es->y_offset - nyoff) * es->line_height;
2960 if (dx || dy) {
2961 RECT rc1;
2962 RECT rc;
2963
2964 es->y_offset = nyoff;
2965 if(es->style & ES_MULTILINE)
2966 es->x_offset += dx;
2967 else
2968 es->x_offset += dx / es->char_width;
2969
2970 GetClientRect(hwnd, &rc1);
2971 IntersectRect(&rc, &rc1, &es->format_rect);
2972 ScrollWindowEx(hwnd, -dx, dy,
2973 NULL, &rc, (HRGN)NULL, NULL, SW_INVALIDATE);
2974 /* force scroll info update */
2975 EDIT_UpdateScrollInfo(hwnd, es);
2976 }
2977 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2978 EDIT_NOTIFY_PARENT(hwnd, es, EN_HSCROLL, "EN_HSCROLL");
2979 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2980 EDIT_NOTIFY_PARENT(hwnd, es, EN_VSCROLL, "EN_VSCROLL");
2981 return TRUE;
2982}
2983
2984
2985/*********************************************************************
2986 *
2987 * EM_POSFROMCHAR
2988 *
2989 */
2990static LRESULT EDIT_EM_PosFromChar(HWND hwnd, EDITSTATE *es, INT index, BOOL after_wrap)
2991{
2992 INT len = strlenW(es->text);
2993 INT l;
2994 INT li;
2995 INT x;
2996 INT y = 0;
2997 HDC dc;
2998 HFONT old_font = 0;
2999 SIZE size;
3000
3001 index = min(index, len);
3002 dc = GetDC(hwnd);
3003 if (es->font)
3004 old_font = SelectObject(dc, es->font);
3005 if (es->style & ES_MULTILINE) {
3006 l = EDIT_EM_LineFromChar(es, index);
3007 y = (l - es->y_offset) * es->line_height;
3008 li = EDIT_EM_LineIndex(es, l);
3009 if (after_wrap && (li == index) && l) {
3010 INT l2 = l - 1;
3011 LINEDEF *line_def = es->first_line_def;
3012 while (l2) {
3013 line_def = line_def->next;
3014 l2--;
3015 }
3016 if (line_def->ending == END_WRAP) {
3017 l--;
3018 y -= es->line_height;
3019 li = EDIT_EM_LineIndex(es, l);
3020 }
3021 }
3022 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3023 es->tabs_count, es->tabs)) - es->x_offset;
3024 } else {
3025 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3026 if (index < es->x_offset) {
3027 GetTextExtentPoint32W(dc, text + index,
3028 es->x_offset - index, &size);
3029 x = -size.cx;
3030 } else {
3031 GetTextExtentPoint32W(dc, text + es->x_offset,
3032 index - es->x_offset, &size);
3033 x = size.cx;
3034 }
3035 y = 0;
3036 if (es->style & ES_PASSWORD)
3037 HeapFree(GetProcessHeap(), 0, text);
3038 }
3039 x += es->format_rect.left;
3040 y += es->format_rect.top;
3041 if (es->font)
3042 SelectObject(dc, old_font);
3043 ReleaseDC(hwnd, dc);
3044 return MAKELONG((INT16)x, (INT16)y);
3045}
3046
3047
3048/*********************************************************************
3049 *
3050 * EM_REPLACESEL
3051 *
3052 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3053 *
3054 */
3055static void EDIT_EM_ReplaceSel(HWND hwnd, EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update)
3056{
3057 UINT strl = strlenW(lpsz_replace);
3058 UINT tl = strlenW(es->text);
3059 UINT utl;
3060 UINT s;
3061 UINT e;
3062 UINT i;
3063 LPWSTR p;
3064 HRGN hrgn = 0;
3065
3066 TRACE("%s, can_undo %d, send_update %d\n",
3067 debugstr_w(lpsz_replace), can_undo, send_update);
3068
3069 s = es->selection_start;
3070 e = es->selection_end;
3071
3072 if ((s == e) && !strl)
3073 return;
3074
3075 ORDER_UINT(s, e);
3076
3077 if (!EDIT_MakeFit(hwnd, es, tl - (e - s) + strl))
3078 return;
3079
3080 if (e != s) {
3081 /* there is something to be deleted */
3082 TRACE("deleting stuff.\n");
3083 if (can_undo) {
3084 utl = strlenW(es->undo_text);
3085 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3086 /* undo-buffer is extended to the right */
3087 EDIT_MakeUndoFit(es, utl + e - s);
3088 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
3089 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3090 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3091 /* undo-buffer is extended to the left */
3092 EDIT_MakeUndoFit(es, utl + e - s);
3093 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3094 p[e - s] = p[0];
3095 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3096 p[i] = (es->text + s)[i];
3097 es->undo_position = s;
3098 } else {
3099 /* new undo-buffer */
3100 EDIT_MakeUndoFit(es, e - s);
3101 strncpyW(es->undo_text, es->text + s, e - s + 1);
3102 es->undo_text[e - s] = 0; /* ensure 0 termination */
3103 es->undo_position = s;
3104 }
3105 /* any deletion makes the old insertion-undo invalid */
3106 es->undo_insert_count = 0;
3107 } else
3108 EDIT_EM_EmptyUndoBuffer(es);
3109
3110 /* now delete */
3111 strcpyW(es->text + s, es->text + e);
3112 }
3113 if (strl) {
3114 /* there is an insertion */
3115 if (can_undo) {
3116 if ((s == es->undo_position) ||
3117 ((es->undo_insert_count) &&
3118 (s == es->undo_position + es->undo_insert_count)))
3119 /*
3120 * insertion is new and at delete position or
3121 * an extension to either left or right
3122 */
3123 es->undo_insert_count += strl;
3124 else {
3125 /* new insertion undo */
3126 es->undo_position = s;
3127 es->undo_insert_count = strl;
3128 /* new insertion makes old delete-buffer invalid */
3129 *es->undo_text = '\0';
3130 }
3131 } else
3132 EDIT_EM_EmptyUndoBuffer(es);
3133
3134 /* now insert */
3135 tl = strlenW(es->text);
3136 TRACE("inserting stuff (tl %d, strl %d, selstart %d ('%s'), text '%s')\n", tl, strl, s, debugstr_w(es->text + s), debugstr_w(es->text));
3137 for (p = es->text + tl ; p >= es->text + s ; p--)
3138 p[strl] = p[0];
3139 for (i = 0 , p = es->text + s ; i < strl ; i++)
3140 p[i] = lpsz_replace[i];
3141 if(es->style & ES_UPPERCASE)
3142 CharUpperBuffW(p, strl);
3143 else if(es->style & ES_LOWERCASE)
3144 CharLowerBuffW(p, strl);
3145 s += strl;
3146 }
3147 if (es->style & ES_MULTILINE)
3148 {
3149 INT s = min(es->selection_start, es->selection_end);
3150
3151 hrgn = CreateRectRgn(0, 0, 0, 0);
3152 EDIT_BuildLineDefs_ML(hwnd, es, s, s + strl,
3153 strl - abs(es->selection_end - es->selection_start), hrgn);
3154 }
3155 else
3156 EDIT_CalcLineWidth_SL(hwnd, es);
3157
3158 EDIT_EM_SetSel(hwnd, es, s, s, FALSE);
3159 es->flags |= EF_MODIFIED;
3160 if (send_update) es->flags |= EF_UPDATE;
3161 EDIT_EM_ScrollCaret(hwnd, es);
3162
3163 /* force scroll info update */
3164 EDIT_UpdateScrollInfo(hwnd, es);
3165
3166 if (hrgn)
3167 {
3168 EDIT_UpdateTextRegion(hwnd, es, hrgn, TRUE);
3169 DeleteObject(hrgn);
3170 }
3171 else
3172 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3173
3174 if(es->flags & EF_UPDATE)
3175 {
3176 es->flags &= ~EF_UPDATE;
3177 EDIT_NOTIFY_PARENT(hwnd, es, EN_CHANGE, "EN_CHANGE");
3178 }
3179}
3180
3181
3182/*********************************************************************
3183 *
3184 * EM_SCROLL
3185 *
3186 */
3187static LRESULT EDIT_EM_Scroll(HWND hwnd, EDITSTATE *es, INT action)
3188{
3189 INT dy;
3190
3191 if (!(es->style & ES_MULTILINE))
3192 return (LRESULT)FALSE;
3193
3194 dy = 0;
3195
3196 switch (action) {
3197 case SB_LINEUP:
3198 if (es->y_offset)
3199 dy = -1;
3200 break;
3201 case SB_LINEDOWN:
3202 if (es->y_offset < es->line_count - 1)
3203 dy = 1;
3204 break;
3205 case SB_PAGEUP:
3206 if (es->y_offset)
3207 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3208 break;
3209 case SB_PAGEDOWN:
3210 if (es->y_offset < es->line_count - 1)
3211 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3212 break;
3213 default:
3214 return (LRESULT)FALSE;
3215 }
3216 if (dy) {
3217 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3218 /* check if we are going to move too far */
3219 if(es->y_offset + dy > es->line_count - vlc)
3220 dy = es->line_count - vlc - es->y_offset;
3221
3222 /* Notification is done in EDIT_EM_LineScroll */
3223 if(dy)
3224 EDIT_EM_LineScroll(hwnd, es, 0, dy);
3225 }
3226 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3227}
3228
3229
3230/*********************************************************************
3231 *
3232 * EM_SCROLLCARET
3233 *
3234 */
3235static void EDIT_EM_ScrollCaret(HWND hwnd, EDITSTATE *es)
3236{
3237 if (es->style & ES_MULTILINE) {
3238 INT l;
3239 INT li;
3240 INT vlc;
3241 INT ww;
3242 INT cw = es->char_width;
3243 INT x;
3244 INT dy = 0;
3245 INT dx = 0;
3246
3247 l = EDIT_EM_LineFromChar(es, es->selection_end);
3248 li = EDIT_EM_LineIndex(es, l);
3249 x = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, es->flags & EF_AFTER_WRAP));
3250 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3251 if (l >= es->y_offset + vlc)
3252 dy = l - vlc + 1 - es->y_offset;
3253 if (l < es->y_offset)
3254 dy = l - es->y_offset;
3255 ww = es->format_rect.right - es->format_rect.left;
3256 if (x < es->format_rect.left)
3257 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3258 if (x > es->format_rect.right)
3259 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3260 if (dy || dx)
3261 {
3262 /* check if we are going to move too far */
3263 if(es->x_offset + dx + ww > es->text_width)
3264 dx = es->text_width - ww - es->x_offset;
3265 if(dx || dy)
3266 EDIT_EM_LineScroll_internal(hwnd, es, dx, dy);
3267 }
3268 } else {
3269 INT x;
3270 INT goal;
3271 INT format_width;
3272
3273 if (!(es->style & ES_AUTOHSCROLL))
3274 return;
3275
3276 x = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, FALSE));
3277 format_width = es->format_rect.right - es->format_rect.left;
3278 if (x < es->format_rect.left) {
3279 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3280 do {
3281 es->x_offset--;
3282 x = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, FALSE));
3283 } while ((x < goal) && es->x_offset);
3284 /* FIXME: use ScrollWindow() somehow to improve performance */
3285 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3286 } else if (x > es->format_rect.right) {
3287 INT x_last;
3288 INT len = strlenW(es->text);
3289 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3290 do {
3291 es->x_offset++;
3292 x = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, es->selection_end, FALSE));
3293 x_last = SLOWORD(EDIT_EM_PosFromChar(hwnd, es, len, FALSE));
3294 } while ((x > goal) && (x_last > es->format_rect.right));
3295 /* FIXME: use ScrollWindow() somehow to improve performance */
3296 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3297 }
3298 }
3299
3300 if(es->flags & EF_FOCUSED)
3301 EDIT_SetCaretPos(hwnd, es, es->selection_end, es->flags & EF_AFTER_WRAP);
3302}
3303
3304
3305/*********************************************************************
3306 *
3307 * EM_SETHANDLE
3308 *
3309 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3310 *
3311 */
3312static void EDIT_EM_SetHandle(HWND hwnd, EDITSTATE *es, HLOCAL hloc)
3313{
3314 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
3315
3316 if (!(es->style & ES_MULTILINE))
3317 return;
3318
3319 if (!hloc) {
3320 WARN("called with NULL handle\n");
3321 return;
3322 }
3323
3324 EDIT_UnlockBuffer(hwnd, es, TRUE);
3325
3326#ifndef __WIN32OS2__
3327 if(es->hloc16)
3328 {
3329 LOCAL_Free(hInstance, es->hloc16);
3330 es->hloc16 = (HLOCAL16)NULL;
3331 }
3332#endif
3333 if(es->is_unicode)
3334 {
3335 if(es->hloc32A)
3336 {
3337 LocalFree(es->hloc32A);
3338 es->hloc32A = (HLOCAL)NULL;
3339 }
3340 es->hloc32W = hloc;
3341 }
3342 else
3343 {
3344 INT countW, countA;
3345 HLOCAL hloc32W_new;
3346 WCHAR *textW;
3347 CHAR *textA;
3348
3349 countA = LocalSize(hloc);
3350 textA = LocalLock(hloc);
3351 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3352 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3353 {
3354 ERR("Could not allocate new unicode buffer\n");
3355 return;
3356 }
3357 textW = LocalLock(hloc32W_new);
3358 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3359 LocalUnlock(hloc32W_new);
3360 LocalUnlock(hloc);
3361
3362 if(es->hloc32W)
3363 LocalFree(es->hloc32W);
3364
3365 es->hloc32W = hloc32W_new;
3366 es->hloc32A = hloc;
3367 }
3368
3369 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3370
3371 EDIT_LockBuffer(hwnd, es);
3372
3373 es->x_offset = es->y_offset = 0;
3374 es->selection_start = es->selection_end = 0;
3375 EDIT_EM_EmptyUndoBuffer(es);
3376 es->flags &= ~EF_MODIFIED;
3377 es->flags &= ~EF_UPDATE;
3378 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3379 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3380 EDIT_EM_ScrollCaret(hwnd, es);
3381 /* force scroll info update */
3382 EDIT_UpdateScrollInfo(hwnd, es);
3383}
3384
3385
3386#ifndef __WIN32OS2__
3387/*********************************************************************
3388 *
3389 * EM_SETHANDLE16
3390 *
3391 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3392 *
3393 */
3394static void EDIT_EM_SetHandle16(HWND hwnd, EDITSTATE *es, HLOCAL16 hloc)
3395{
3396 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
3397 INT countW, countA;
3398 HLOCAL hloc32W_new;
3399 WCHAR *textW;
3400 CHAR *textA;
3401
3402 if (!(es->style & ES_MULTILINE))
3403 return;
3404
3405 if (!hloc) {
3406 WARN("called with NULL handle\n");
3407 return;
3408 }
3409
3410 EDIT_UnlockBuffer(hwnd, es, TRUE);
3411
3412 if(es->hloc32A)
3413 {
3414 LocalFree(es->hloc32A);
3415 es->hloc32A = (HLOCAL)NULL;
3416 }
3417
3418 countA = LOCAL_Size(hInstance, hloc);
3419 textA = LOCAL_Lock(hInstance, hloc);
3420 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3421 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3422 {
3423 ERR("Could not allocate new unicode buffer\n");
3424 return;
3425 }
3426 textW = LocalLock(hloc32W_new);
3427 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3428 LocalUnlock(hloc32W_new);
3429 LOCAL_Unlock(hInstance, hloc);
3430
3431 if(es->hloc32W)
3432 LocalFree(es->hloc32W);
3433
3434 es->hloc32W = hloc32W_new;
3435 es->hloc16 = hloc;
3436
3437 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3438
3439 EDIT_LockBuffer(hwnd, es);
3440
3441 es->x_offset = es->y_offset = 0;
3442 es->selection_start = es->selection_end = 0;
3443 EDIT_EM_EmptyUndoBuffer(es);
3444 es->flags &= ~EF_MODIFIED;
3445 es->flags &= ~EF_UPDATE;
3446 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3447 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3448 EDIT_EM_ScrollCaret(hwnd, es);
3449 /* force scroll info update */
3450 EDIT_UpdateScrollInfo(hwnd, es);
3451}
3452#endif
3453
3454/*********************************************************************
3455 *
3456 * EM_SETLIMITTEXT
3457 *
3458 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3459 * However, the windows version is not complied to yet in all of edit.c
3460 *
3461 */
3462static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3463{
3464 if (es->style & ES_MULTILINE) {
3465 if (limit)
3466 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3467 else
3468 es->buffer_limit = BUFLIMIT_MULTI;
3469 } else {
3470 if (limit)
3471 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3472 else
3473 es->buffer_limit = BUFLIMIT_SINGLE;
3474 }
3475}
3476
3477
3478/*********************************************************************
3479 *
3480 * EM_SETMARGINS
3481 *
3482 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3483 * action wParam despite what the docs say. EC_USEFONTINFO means one third
3484 * of the char's width, according to the new docs.
3485 *
3486 */
3487static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3488 INT left, INT right)
3489{
3490 if (action & EC_LEFTMARGIN) {
3491 if (left != EC_USEFONTINFO)
3492 es->left_margin = left;
3493 else
3494 es->left_margin = es->char_width / 3;
3495 }
3496
3497 if (action & EC_RIGHTMARGIN) {
3498 if (right != EC_USEFONTINFO)
3499 es->right_margin = right;
3500 else
3501 es->right_margin = es->char_width / 3;
3502 }
3503 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3504}
3505
3506
3507/*********************************************************************
3508 *
3509 * EM_SETPASSWORDCHAR
3510 *
3511 */
3512static void EDIT_EM_SetPasswordChar(HWND hwnd, EDITSTATE *es, WCHAR c)
3513{
3514 LONG style;
3515
3516 if (es->style & ES_MULTILINE)
3517 return;
3518
3519 if (es->password_char == c)
3520 return;
3521
3522 style = GetWindowLongA( hwnd, GWL_STYLE );
3523 es->password_char = c;
3524 if (c) {
3525 SetWindowLongA( hwnd, GWL_STYLE, style | ES_PASSWORD );
3526 es->style |= ES_PASSWORD;
3527 } else {
3528 SetWindowLongA( hwnd, GWL_STYLE, style & ~ES_PASSWORD );
3529 es->style &= ~ES_PASSWORD;
3530 }
3531 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3532}
3533
3534
3535/*********************************************************************
3536 *
3537 * EDIT_EM_SetSel
3538 *
3539 * note: unlike the specs say: the order of start and end
3540 * _is_ preserved in Windows. (i.e. start can be > end)
3541 * In other words: this handler is OK
3542 *
3543 */
3544static void EDIT_EM_SetSel(HWND hwnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3545{
3546 UINT old_start = es->selection_start;
3547 UINT old_end = es->selection_end;
3548 UINT len = strlenW(es->text);
3549
3550 if (start == (UINT)-1) {
3551 start = es->selection_end;
3552 end = es->selection_end;
3553 } else {
3554 start = min(start, len);
3555 end = min(end, len);
3556 }
3557 es->selection_start = start;
3558 es->selection_end = end;
3559 if (after_wrap)
3560 es->flags |= EF_AFTER_WRAP;
3561 else
3562 es->flags &= ~EF_AFTER_WRAP;
3563/* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3564 ORDER_UINT(start, end);
3565 ORDER_UINT(end, old_end);
3566 ORDER_UINT(start, old_start);
3567 ORDER_UINT(old_start, old_end);
3568 if (end != old_start)
3569 {
3570/*
3571 * One can also do
3572 * ORDER_UINT32(end, old_start);
3573 * EDIT_InvalidateText(hwnd, es, start, end);
3574 * EDIT_InvalidateText(hwnd, es, old_start, old_end);
3575 * in place of the following if statement.
3576 */
3577 if (old_start > end )
3578 {
3579 EDIT_InvalidateText(hwnd, es, start, end);
3580 EDIT_InvalidateText(hwnd, es, old_start, old_end);
3581 }
3582 else
3583 {
3584 EDIT_InvalidateText(hwnd, es, start, old_start);
3585 EDIT_InvalidateText(hwnd, es, end, old_end);
3586 }
3587 }
3588 else EDIT_InvalidateText(hwnd, es, start, old_end);
3589}
3590
3591
3592/*********************************************************************
3593 *
3594 * EM_SETTABSTOPS
3595 *
3596 */
3597static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3598{
3599 if (!(es->style & ES_MULTILINE))
3600 return FALSE;
3601 if (es->tabs)
3602 HeapFree(GetProcessHeap(), 0, es->tabs);
3603 es->tabs_count = count;
3604 if (!count)
3605 es->tabs = NULL;
3606 else {
3607 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3608 memcpy(es->tabs, tabs, count * sizeof(INT));
3609 }
3610 return TRUE;
3611}
3612
3613
3614/*********************************************************************
3615 *
3616 * EM_SETTABSTOPS16
3617 *
3618 */
3619static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3620{
3621 if (!(es->style & ES_MULTILINE))
3622 return FALSE;
3623 if (es->tabs)
3624 HeapFree(GetProcessHeap(), 0, es->tabs);
3625 es->tabs_count = count;
3626 if (!count)
3627 es->tabs = NULL;
3628 else {
3629 INT i;
3630 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3631 for (i = 0 ; i < count ; i++)
3632 es->tabs[i] = *tabs++;
3633 }
3634 return TRUE;
3635}
3636
3637
3638/*********************************************************************
3639 *
3640 * EM_SETWORDBREAKPROC
3641 *
3642 */
3643static void EDIT_EM_SetWordBreakProc(HWND hwnd, EDITSTATE *es, LPARAM lParam)
3644{
3645 if (es->word_break_proc == (void *)lParam)
3646 return;
3647
3648 es->word_break_proc = (void *)lParam;
3649 es->word_break_proc16 = NULL;
3650
3651 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3652 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3653 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3654 }
3655}
3656
3657
3658#ifndef __WIN32OS2__
3659/*********************************************************************
3660 *
3661 * EM_SETWORDBREAKPROC16
3662 *
3663 */
3664static void EDIT_EM_SetWordBreakProc16(HWND hwnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3665{
3666 if (es->word_break_proc16 == wbp)
3667 return;
3668
3669 es->word_break_proc = NULL;
3670 es->word_break_proc16 = wbp;
3671 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3672 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3673 EDIT_UpdateText(hwnd, es, NULL, TRUE);
3674 }
3675}
3676#endif
3677
3678/*********************************************************************
3679 *
3680 * EM_UNDO / WM_UNDO
3681 *
3682 */
3683static BOOL EDIT_EM_Undo(HWND hwnd, EDITSTATE *es)
3684{
3685 INT ulength;
3686 LPWSTR utext;
3687
3688 /* Protect read-only edit control from modification */
3689 if(es->style & ES_READONLY)
3690 return FALSE;
3691
3692 ulength = strlenW(es->undo_text);
3693 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3694
3695 strcpyW(utext, es->undo_text);
3696
3697 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3698 es->undo_insert_count, debugstr_w(utext));
3699
3700 EDIT_EM_SetSel(hwnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3701 EDIT_EM_EmptyUndoBuffer(es);
3702 EDIT_EM_ReplaceSel(hwnd, es, TRUE, utext, FALSE);
3703 EDIT_EM_SetSel(hwnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3704 /* send the notification after the selection start and end are set */
3705 EDIT_NOTIFY_PARENT(hwnd, es, EN_CHANGE, "EN_CHANGE");
3706 EDIT_EM_ScrollCaret(hwnd, es);
3707 HeapFree(GetProcessHeap(), 0, utext);
3708
3709 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3710 es->undo_insert_count, debugstr_w(es->undo_text));
3711 return TRUE;
3712}
3713
3714
3715/*********************************************************************
3716 *
3717 * WM_CHAR
3718 *
3719 */
3720static void EDIT_WM_Char(HWND hwnd, EDITSTATE *es, WCHAR c)
3721{
3722 BOOL control;
3723
3724 /* Protect read-only edit control from modification */
3725 if(es->style & ES_READONLY)
3726 return;
3727
3728 control = GetKeyState(VK_CONTROL) & 0x8000;
3729
3730 switch (c) {
3731 case '\r':
3732 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3733 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3734 break;
3735 case '\n':
3736 if (es->style & ES_MULTILINE) {
3737 if (es->style & ES_READONLY) {
3738 EDIT_MoveHome(hwnd, es, FALSE);
3739 EDIT_MoveDown_ML(hwnd, es, FALSE);
3740 } else {
3741 static const WCHAR cr_lfW[] = {'\r','\n',0};
3742 EDIT_EM_ReplaceSel(hwnd, es, TRUE, cr_lfW, TRUE);
3743 }
3744 }
3745 break;
3746 case '\t':
3747 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3748 {
3749 static const WCHAR tabW[] = {'\t',0};
3750 EDIT_EM_ReplaceSel(hwnd, es, TRUE, tabW, TRUE);
3751 }
3752 break;
3753 case VK_BACK:
3754 if (!(es->style & ES_READONLY) && !control) {
3755 if (es->selection_start != es->selection_end)
3756 EDIT_WM_Clear(hwnd, es);
3757 else {
3758 /* delete character left of caret */
3759 EDIT_EM_SetSel(hwnd, es, (UINT)-1, 0, FALSE);
3760 EDIT_MoveBackward(hwnd, es, TRUE);
3761 EDIT_WM_Clear(hwnd, es);
3762 }
3763 }
3764 break;
3765 case 0x03: /* ^C */
3766 SendMessageW(hwnd, WM_COPY, 0, 0);
3767 break;
3768 case 0x16: /* ^V */
3769 SendMessageW(hwnd, WM_PASTE, 0, 0);
3770 break;
3771 case 0x18: /* ^X */
3772 SendMessageW(hwnd, WM_CUT, 0, 0);
3773 break;
3774
3775 default:
3776 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3777 WCHAR str[2];
3778 str[0] = c;
3779 str[1] = '\0';
3780 EDIT_EM_ReplaceSel(hwnd, es, TRUE, str, TRUE);
3781 }
3782 break;
3783 }
3784}
3785
3786
3787/*********************************************************************
3788 *
3789 * WM_COMMAND
3790 *
3791 */
3792static void EDIT_WM_Command(HWND hwnd, EDITSTATE *es, INT code, INT id, HWND control)
3793{
3794 if (code || control)
3795 return;
3796
3797 switch (id) {
3798 case EM_UNDO:
3799 EDIT_EM_Undo(hwnd, es);
3800 break;
3801 case WM_CUT:
3802 EDIT_WM_Cut(hwnd, es);
3803 break;
3804 case WM_COPY:
3805 EDIT_WM_Copy(hwnd, es);
3806 break;
3807 case WM_PASTE:
3808 EDIT_WM_Paste(hwnd, es);
3809 break;
3810 case WM_CLEAR:
3811 EDIT_WM_Clear(hwnd, es);
3812 break;
3813 case EM_SETSEL:
3814 EDIT_EM_SetSel(hwnd, es, 0, (UINT)-1, FALSE);
3815 EDIT_EM_ScrollCaret(hwnd, es);
3816 break;
3817 default:
3818 ERR("unknown menu item, please report\n");
3819 break;
3820 }
3821}
3822
3823
3824/*********************************************************************
3825 *
3826 * WM_CONTEXTMENU
3827 *
3828 * Note: the resource files resource/sysres_??.rc cannot define a
3829 * single popup menu. Hence we use a (dummy) menubar
3830 * containing the single popup menu as its first item.
3831 *
3832 * FIXME: the message identifiers have been chosen arbitrarily,
3833 * hence we use MF_BYPOSITION.
3834 * We might as well use the "real" values (anybody knows ?)
3835 * The menu definition is in resources/sysres_??.rc.
3836 * Once these are OK, we better use MF_BYCOMMAND here
3837 * (as we do in EDIT_WM_Command()).
3838 *
3839 */
3840static void EDIT_WM_ContextMenu(HWND hwnd, EDITSTATE *es, INT x, INT y)
3841{
3842 HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
3843 HMENU popup = GetSubMenu(menu, 0);
3844 UINT start = es->selection_start;
3845 UINT end = es->selection_end;
3846
3847 ORDER_UINT(start, end);
3848
3849 /* undo */
3850 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3851 /* cut */
3852 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3853 /* copy */
3854 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3855 /* paste */
3856 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3857 /* delete */
3858 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3859 /* select all */
3860 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3861
3862 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, hwnd, NULL);
3863 DestroyMenu(menu);
3864}
3865
3866
3867/*********************************************************************
3868 *
3869 * WM_COPY
3870 *
3871 */
3872static void EDIT_WM_Copy(HWND hwnd, EDITSTATE *es)
3873{
3874 INT s = es->selection_start;
3875 INT e = es->selection_end;
3876 HGLOBAL hdst;
3877 LPWSTR dst;
3878
3879 if (e == s)
3880 return;
3881 ORDER_INT(s, e);
3882 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3883 dst = GlobalLock(hdst);
3884 strncpyW(dst, es->text + s, e - s);
3885 dst[e - s ] = 0; /* ensure 0 termination */
3886 TRACE("%s\n", debugstr_w(dst));
3887
3888 GlobalUnlock(hdst);
3889 OpenClipboard(hwnd);
3890 EmptyClipboard();
3891 SetClipboardData(CF_UNICODETEXT, hdst);
3892 CloseClipboard();
3893}
3894
3895
3896/*********************************************************************
3897 *
3898 * WM_CREATE
3899 *
3900 */
3901static LRESULT EDIT_WM_Create(HWND hwnd, EDITSTATE *es, LPCWSTR name)
3902{
3903 TRACE("%s\n", debugstr_w(name));
3904 /*
3905 * To initialize some final structure members, we call some helper
3906 * functions. However, since the EDITSTATE is not consistent (i.e.
3907 * not fully initialized), we should be very careful which
3908 * functions can be called, and in what order.
3909 */
3910 EDIT_WM_SetFont(hwnd, es, 0, FALSE);
3911 EDIT_EM_EmptyUndoBuffer(es);
3912
3913 if (name && *name) {
3914 EDIT_EM_ReplaceSel(hwnd, es, FALSE, name, FALSE);
3915 /* if we insert text to the editline, the text scrolls out
3916 * of the window, as the caret is placed after the insert
3917 * pos normally; thus we reset es->selection... to 0 and
3918 * update caret
3919 */
3920 es->selection_start = es->selection_end = 0;
3921 /* send the notification after the selection start and end are set */
3922 EDIT_NOTIFY_PARENT(hwnd, es, EN_CHANGE, "EN_CHANGE");
3923 EDIT_EM_ScrollCaret(hwnd, es);
3924 }
3925 /* force scroll info update */
3926 EDIT_UpdateScrollInfo(hwnd, es);
3927 return 0;
3928}
3929
3930
3931/*********************************************************************
3932 *
3933 * WM_DESTROY
3934 *
3935 */
3936static void EDIT_WM_Destroy(HWND hwnd, EDITSTATE *es)
3937{
3938 HINSTANCE hInstance = GetWindowLongA( hwnd, GWL_HINSTANCE );
3939 LINEDEF *pc, *pp;
3940
3941 if (es->hloc32W) {
3942 while (LocalUnlock(es->hloc32W)) ;
3943 LocalFree(es->hloc32W);
3944 }
3945 if (es->hloc32A) {
3946 while (LocalUnlock(es->hloc32A)) ;
3947 LocalFree(es->hloc32A);
3948 }
3949#ifndef __WIN32OS2__
3950 if (es->hloc16) {
3951 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3952 LOCAL_Free(hInstance, es->hloc16);
3953 }
3954#endif
3955 pc = es->first_line_def;
3956 while (pc)
3957 {
3958 pp = pc->next;
3959 HeapFree(GetProcessHeap(), 0, pc);
3960 pc = pp;
3961 }
3962
3963 SetWindowLongA( hwnd, 0, 0 );
3964 HeapFree(GetProcessHeap(), 0, es);
3965}
3966
3967
3968/*********************************************************************
3969 *
3970 * WM_ERASEBKGND
3971 *
3972 */
3973static LRESULT EDIT_WM_EraseBkGnd(HWND hwnd, EDITSTATE *es, HDC dc)
3974{
3975 HBRUSH brush;
3976 RECT rc;
3977
3978 if ( get_app_version() >= 0x40000 &&(
3979 !es->bEnableState || (es->style & ES_READONLY)))
3980 brush = (HBRUSH)EDIT_SEND_CTLCOLORSTATIC(hwnd, dc);
3981 else
3982 brush = (HBRUSH)EDIT_SEND_CTLCOLOR(hwnd, dc);
3983
3984 if (!brush)
3985 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3986
3987 GetClientRect(hwnd, &rc);
3988 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3989 GetClipBox(dc, &rc);
3990 /*
3991 * FIXME: specs say that we should UnrealizeObject() the brush,
3992 * but the specs of UnrealizeObject() say that we shouldn't
3993 * unrealize a stock object. The default brush that
3994 * DefWndProc() returns is ... a stock object.
3995 */
3996 FillRect(dc, &rc, brush);
3997 return -1;
3998}
3999
4000
4001/*********************************************************************
4002 *
4003 * WM_GETTEXT
4004 *
4005 */
4006static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
4007{
4008 if(!count) return 0;
4009
4010 if(unicode)
4011 {
4012 LPWSTR textW = (LPWSTR)lParam;
4013 strncpyW(textW, es->text, count);
4014 textW[count - 1] = 0; /* ensure 0 termination */
4015 return strlenW(textW);
4016 }
4017 else
4018 {
4019 LPSTR textA = (LPSTR)lParam;
4020 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL);
4021#ifdef __WIN32OS2__
4022 lstrtrunc( textA, count );
4023#else
4024 textA[count - 1] = 0; /* ensure 0 termination */
4025#endif
4026 return strlen(textA);
4027 }
4028}
4029
4030/*********************************************************************
4031 *
4032 * WM_HSCROLL
4033 *
4034 */
4035static LRESULT EDIT_WM_HScroll(HWND hwnd, EDITSTATE *es, INT action, INT pos)
4036{
4037 INT dx;
4038 INT fw;
4039
4040 if (!(es->style & ES_MULTILINE))
4041 return 0;
4042
4043 if (!(es->style & ES_AUTOHSCROLL))
4044 return 0;
4045
4046 dx = 0;
4047 fw = es->format_rect.right - es->format_rect.left;
4048 switch (action) {
4049 case SB_LINELEFT:
4050 TRACE("SB_LINELEFT\n");
4051 if (es->x_offset)
4052 dx = -es->char_width;
4053 break;
4054 case SB_LINERIGHT:
4055 TRACE("SB_LINERIGHT\n");
4056 if (es->x_offset < es->text_width)
4057 dx = es->char_width;
4058 break;
4059 case SB_PAGELEFT:
4060 TRACE("SB_PAGELEFT\n");
4061 if (es->x_offset)
4062 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4063 break;
4064 case SB_PAGERIGHT:
4065 TRACE("SB_PAGERIGHT\n");
4066 if (es->x_offset < es->text_width)
4067 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4068 break;
4069 case SB_LEFT:
4070 TRACE("SB_LEFT\n");
4071 if (es->x_offset)
4072 dx = -es->x_offset;
4073 break;
4074 case SB_RIGHT:
4075 TRACE("SB_RIGHT\n");
4076 if (es->x_offset < es->text_width)
4077 dx = es->text_width - es->x_offset;
4078 break;
4079 case SB_THUMBTRACK:
4080 TRACE("SB_THUMBTRACK %d\n", pos);
4081 es->flags |= EF_HSCROLL_TRACK;
4082 if(es->style & WS_HSCROLL)
4083 dx = pos - es->x_offset;
4084 else
4085 {
4086 INT fw, new_x;
4087 /* Sanity check */
4088 if(pos < 0 || pos > 100) return 0;
4089 /* Assume default scroll range 0-100 */
4090 fw = es->format_rect.right - es->format_rect.left;
4091 new_x = pos * (es->text_width - fw) / 100;
4092 dx = es->text_width ? (new_x - es->x_offset) : 0;
4093 }
4094 break;
4095 case SB_THUMBPOSITION:
4096 TRACE("SB_THUMBPOSITION %d\n", pos);
4097 es->flags &= ~EF_HSCROLL_TRACK;
4098 if(GetWindowLongA( hwnd, GWL_STYLE ) & WS_HSCROLL)
4099 dx = pos - es->x_offset;
4100 else
4101 {
4102 INT fw, new_x;
4103 /* Sanity check */
4104 if(pos < 0 || pos > 100) return 0;
4105 /* Assume default scroll range 0-100 */
4106 fw = es->format_rect.right - es->format_rect.left;
4107 new_x = pos * (es->text_width - fw) / 100;
4108 dx = es->text_width ? (new_x - es->x_offset) : 0;
4109 }
4110 if (!dx) {
4111 /* force scroll info update */
4112 EDIT_UpdateScrollInfo(hwnd, es);
4113 EDIT_NOTIFY_PARENT(hwnd, es, EN_HSCROLL, "EN_HSCROLL");
4114 }
4115 break;
4116 case SB_ENDSCROLL:
4117 TRACE("SB_ENDSCROLL\n");
4118 break;
4119 /*
4120 * FIXME : the next two are undocumented !
4121 * Are we doing the right thing ?
4122 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4123 * although it's also a regular control message.
4124 */
4125 case EM_GETTHUMB: /* this one is used by NT notepad */
4126 case EM_GETTHUMB16:
4127 {
4128 LRESULT ret;
4129 if(GetWindowLongA( hwnd, GWL_STYLE ) & WS_HSCROLL)
4130 ret = GetScrollPos(hwnd, SB_HORZ);
4131 else
4132 {
4133 /* Assume default scroll range 0-100 */
4134 INT fw = es->format_rect.right - es->format_rect.left;
4135 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4136 }
4137 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4138 return ret;
4139 }
4140 case EM_LINESCROLL16:
4141 TRACE("EM_LINESCROLL16\n");
4142 dx = pos;
4143 break;
4144
4145 default:
4146 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4147 action, action);
4148 return 0;
4149 }
4150 if (dx)
4151 {
4152 INT fw = es->format_rect.right - es->format_rect.left;
4153 /* check if we are going to move too far */
4154 if(es->x_offset + dx + fw > es->text_width)
4155 dx = es->text_width - fw - es->x_offset;
4156 if(dx)
4157 EDIT_EM_LineScroll_internal(hwnd, es, dx, 0);
4158 }
4159 return 0;
4160}
4161
4162
4163/*********************************************************************
4164 *
4165 * EDIT_CheckCombo
4166 *
4167 */
4168static BOOL EDIT_CheckCombo(HWND hwnd, EDITSTATE *es, UINT msg, INT key)
4169{
4170 HWND hLBox = es->hwndListBox;
4171 HWND hCombo;
4172 BOOL bDropped;
4173 int nEUI;
4174
4175 if (!hLBox)
4176 return FALSE;
4177
4178 hCombo = GetParent(hwnd);
4179 bDropped = TRUE;
4180 nEUI = 0;
4181
4182 TRACE_(combo)("[%04x]: handling msg %04x (%04x)\n",
4183 hwnd, (UINT16)msg, (UINT16)key);
4184
4185 if (key == VK_UP || key == VK_DOWN)
4186 {
4187 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4188 nEUI = 1;
4189
4190 if (msg == WM_KEYDOWN || nEUI)
4191 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4192 }
4193
4194 switch (msg)
4195 {
4196 case WM_KEYDOWN:
4197 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4198 {
4199 /* make sure ComboLBox pops up */
4200 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4201 key = VK_F4;
4202 nEUI = 2;
4203 }
4204
4205 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4206 break;
4207
4208 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4209 if (nEUI)
4210 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4211 else
4212 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4213 break;
4214 }
4215
4216 if(nEUI == 2)
4217 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4218
4219 return TRUE;
4220}
4221
4222
4223/*********************************************************************
4224 *
4225 * WM_KEYDOWN
4226 *
4227 * Handling of special keys that don't produce a WM_CHAR
4228 * (i.e. non-printable keys) & Backspace & Delete
4229 *
4230 */
4231static LRESULT EDIT_WM_KeyDown(HWND hwnd, EDITSTATE *es, INT key)
4232{
4233 BOOL shift;
4234 BOOL control;
4235
4236 if (GetKeyState(VK_MENU) & 0x8000)
4237 return 0;
4238
4239 shift = GetKeyState(VK_SHIFT) & 0x8000;
4240 control = GetKeyState(VK_CONTROL) & 0x8000;
4241
4242 switch (key) {
4243 case VK_F4:
4244 case VK_UP:
4245 if (EDIT_CheckCombo(hwnd, es, WM_KEYDOWN, key) || key == VK_F4)
4246 break;
4247
4248 /* fall through */
4249 case VK_LEFT:
4250 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4251 EDIT_MoveUp_ML(hwnd, es, shift);
4252 else
4253 if (control)
4254 EDIT_MoveWordBackward(hwnd, es, shift);
4255 else
4256 EDIT_MoveBackward(hwnd, es, shift);
4257 break;
4258 case VK_DOWN:
4259 if (EDIT_CheckCombo(hwnd, es, WM_KEYDOWN, key))
4260 break;
4261 /* fall through */
4262 case VK_RIGHT:
4263 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4264 EDIT_MoveDown_ML(hwnd, es, shift);
4265 else if (control)
4266 EDIT_MoveWordForward(hwnd, es, shift);
4267 else
4268 EDIT_MoveForward(hwnd, es, shift);
4269 break;
4270 case VK_HOME:
4271 EDIT_MoveHome(hwnd, es, shift);
4272 break;
4273 case VK_END:
4274 EDIT_MoveEnd(hwnd, es, shift);
4275 break;
4276 case VK_PRIOR:
4277 if (es->style & ES_MULTILINE)
4278 EDIT_MovePageUp_ML(hwnd, es, shift);
4279 else
4280 EDIT_CheckCombo(hwnd, es, WM_KEYDOWN, key);
4281 break;
4282 case VK_NEXT:
4283 if (es->style & ES_MULTILINE)
4284 EDIT_MovePageDown_ML(hwnd, es, shift);
4285 else
4286 EDIT_CheckCombo(hwnd, es, WM_KEYDOWN, key);
4287 break;
4288 case VK_DELETE:
4289 if (!(es->style & ES_READONLY) && !(shift && control)) {
4290 if (es->selection_start != es->selection_end) {
4291 if (shift)
4292 EDIT_WM_Cut(hwnd, es);
4293 else
4294 EDIT_WM_Clear(hwnd, es);
4295 } else {
4296 if (shift) {
4297 /* delete character left of caret */
4298 EDIT_EM_SetSel(hwnd, es, (UINT)-1, 0, FALSE);
4299 EDIT_MoveBackward(hwnd, es, TRUE);
4300 EDIT_WM_Clear(hwnd, es);
4301 } else if (control) {
4302 /* delete to end of line */
4303 EDIT_EM_SetSel(hwnd, es, (UINT)-1, 0, FALSE);
4304 EDIT_MoveEnd(hwnd, es, TRUE);
4305 EDIT_WM_Clear(hwnd, es);
4306 } else {
4307 /* delete character right of caret */
4308 EDIT_EM_SetSel(hwnd, es, (UINT)-1, 0, FALSE);
4309 EDIT_MoveForward(hwnd, es, TRUE);
4310 EDIT_WM_Clear(hwnd, es);
4311 }
4312 }
4313 }
4314 break;
4315 case VK_INSERT:
4316 if (shift) {
4317 if (!(es->style & ES_READONLY))
4318 EDIT_WM_Paste(hwnd, es);
4319 } else if (control)
4320 EDIT_WM_Copy(hwnd, es);
4321 break;
4322 case VK_RETURN:
4323 /* If the edit doesn't want the return send a message to the default object */
4324 if(!(es->style & ES_WANTRETURN))
4325 {
4326 HWND hwndParent = GetParent(hwnd);
4327 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4328 if (HIWORD(dw) == DC_HASDEFID)
4329 {
4330 SendMessageW( hwndParent, WM_COMMAND,
4331 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4332 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4333 }
4334 }
4335 break;
4336 }
4337 return 0;
4338}
4339
4340
4341/*********************************************************************
4342 *
4343 * WM_KILLFOCUS
4344 *
4345 */
4346static LRESULT EDIT_WM_KillFocus(HWND hwnd, EDITSTATE *es)
4347{
4348 es->flags &= ~EF_FOCUSED;
4349 DestroyCaret();
4350 if(!(es->style & ES_NOHIDESEL))
4351 EDIT_InvalidateText(hwnd, es, es->selection_start, es->selection_end);
4352 EDIT_NOTIFY_PARENT(hwnd, es, EN_KILLFOCUS, "EN_KILLFOCUS");
4353 return 0;
4354}
4355
4356
4357/*********************************************************************
4358 *
4359 * WM_LBUTTONDBLCLK
4360 *
4361 * The caret position has been set on the WM_LBUTTONDOWN message
4362 *
4363 */
4364static LRESULT EDIT_WM_LButtonDblClk(HWND hwnd, EDITSTATE *es)
4365{
4366 INT s;
4367 INT e = es->selection_end;
4368 INT l;
4369 INT li;
4370 INT ll;
4371
4372 if (!(es->flags & EF_FOCUSED))
4373 return 0;
4374
4375 l = EDIT_EM_LineFromChar(es, e);
4376 li = EDIT_EM_LineIndex(es, l);
4377 ll = EDIT_EM_LineLength(es, e);
4378 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4379 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4380 EDIT_EM_SetSel(hwnd, es, s, e, FALSE);
4381 EDIT_EM_ScrollCaret(hwnd, es);
4382 return 0;
4383}
4384
4385
4386/*********************************************************************
4387 *
4388 * WM_LBUTTONDOWN
4389 *
4390 */
4391static LRESULT EDIT_WM_LButtonDown(HWND hwnd, EDITSTATE *es, DWORD keys, INT x, INT y)
4392{
4393 INT e;
4394 BOOL after_wrap;
4395
4396 if (!(es->flags & EF_FOCUSED))
4397 return 0;
4398
4399 es->bCaptureState = TRUE;
4400 SetCapture(hwnd);
4401 EDIT_ConfinePoint(es, &x, &y);
4402 e = EDIT_CharFromPos(hwnd, es, x, y, &after_wrap);
4403 EDIT_EM_SetSel(hwnd, es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4404 EDIT_EM_ScrollCaret(hwnd, es);
4405 es->region_posx = es->region_posy = 0;
4406 SetTimer(hwnd, 0, 100, NULL);
4407 return 0;
4408}
4409
4410
4411/*********************************************************************
4412 *
4413 * WM_LBUTTONUP
4414 *
4415 */
4416static LRESULT EDIT_WM_LButtonUp(HWND hwndSelf, EDITSTATE *es)
4417{
4418#ifdef __WIN32OS2__
4419 if (es->bCaptureState) {
4420 KillTimer(hwndSelf, 0);
4421 if(GetCapture() == hwndSelf) ReleaseCapture();
4422 }
4423#else
4424 if (es->bCaptureState && GetCapture() == hwndSelf) {
4425 KillTimer(hwndSelf, 0);
4426 ReleaseCapture();
4427 }
4428#endif
4429 es->bCaptureState = FALSE;
4430 return 0;
4431}
4432
4433
4434/*********************************************************************
4435 *
4436 * WM_MBUTTONDOWN
4437 *
4438 */
4439static LRESULT EDIT_WM_MButtonDown(HWND hwnd)
4440{
4441 SendMessageW(hwnd,WM_PASTE,0,0);
4442 return 0;
4443}
4444
4445
4446/*********************************************************************
4447 *
4448 * WM_MOUSEMOVE
4449 *
4450 */
4451static LRESULT EDIT_WM_MouseMove(HWND hwnd, EDITSTATE *es, INT x, INT y)
4452{
4453 INT e;
4454 BOOL after_wrap;
4455 INT prex, prey;
4456
4457 if (GetCapture() != hwnd)
4458 return 0;
4459
4460 /*
4461 * FIXME: gotta do some scrolling if outside client
4462 * area. Maybe reset the timer ?
4463 */
4464 prex = x; prey = y;
4465 EDIT_ConfinePoint(es, &x, &y);
4466 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4467 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4468 e = EDIT_CharFromPos(hwnd, es, x, y, &after_wrap);
4469 EDIT_EM_SetSel(hwnd, es, es->selection_start, e, after_wrap);
4470 return 0;
4471}
4472
4473
4474/*********************************************************************
4475 *
4476 * WM_NCCREATE
4477 *
4478 * See also EDIT_WM_StyleChanged
4479 */
4480static LRESULT EDIT_WM_NCCreate(HWND hwnd, DWORD style, HWND hwndParent, BOOL unicode)
4481{
4482 EDITSTATE *es;
4483 UINT alloc_size;
4484
4485 TRACE("Creating %s edit control, style = %08lx\n",
4486 unicode ? "Unicode" : "ANSI", style);
4487
4488 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4489 return FALSE;
4490 SetWindowLongA( hwnd, 0, (LONG)es );
4491
4492 /*
4493 * Note: since the EDITSTATE has not been fully initialized yet,
4494 * we can't use any API calls that may send
4495 * WM_XXX messages before WM_NCCREATE is completed.
4496 */
4497
4498 es->is_unicode = unicode;
4499 es->style = style;
4500
4501 es->bEnableState = !(style & WS_DISABLED);
4502
4503 /* Save parent, which will be notified by EN_* messages */
4504 es->hwndParent = hwndParent;
4505
4506 if (es->style & ES_COMBO)
4507 es->hwndListBox = GetDlgItem(hwndParent, ID_CB_LISTBOX);
4508
4509 /* Number overrides lowercase overrides uppercase (at least it
4510 * does in Win95). However I'll bet that ES_NUMBER would be
4511 * invalid under Win 3.1.
4512 */
4513 if (es->style & ES_NUMBER) {
4514 ; /* do not override the ES_NUMBER */
4515 } else if (es->style & ES_LOWERCASE) {
4516 es->style &= ~ES_UPPERCASE;
4517 }
4518 if (es->style & ES_MULTILINE) {
4519 es->buffer_limit = BUFLIMIT_MULTI;
4520 if (es->style & WS_VSCROLL)
4521 es->style |= ES_AUTOVSCROLL;
4522 if (es->style & WS_HSCROLL)
4523 es->style |= ES_AUTOHSCROLL;
4524 es->style &= ~ES_PASSWORD;
4525 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4526 /* Confirmed - RIGHT overrides CENTER */
4527 if (es->style & ES_RIGHT)
4528 es->style &= ~ES_CENTER;
4529 es->style &= ~WS_HSCROLL;
4530 es->style &= ~ES_AUTOHSCROLL;
4531 }
4532
4533 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4534 es->style |= ES_AUTOVSCROLL;
4535 } else {
4536 es->buffer_limit = BUFLIMIT_SINGLE;
4537 if (WIN31_LOOK == TWEAK_WineLook ||
4538 WIN95_LOOK == TWEAK_WineLook) {
4539 es->style &= ~ES_CENTER;
4540 es->style &= ~ES_RIGHT;
4541 } else {
4542 if (es->style & ES_RIGHT)
4543 es->style &= ~ES_CENTER;
4544 }
4545 es->style &= ~WS_HSCROLL;
4546 es->style &= ~WS_VSCROLL;
4547 es->style &= ~ES_AUTOVSCROLL;
4548 es->style &= ~ES_WANTRETURN;
4549 if (es->style & ES_PASSWORD)
4550 es->password_char = '*';
4551
4552 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4553 es->style |= ES_AUTOHSCROLL;
4554 }
4555
4556 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4557 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4558 return FALSE;
4559 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4560
4561 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4562 return FALSE;
4563 es->undo_buffer_size = es->buffer_size;
4564
4565 if (es->style & ES_MULTILINE)
4566 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4567 return FALSE;
4568 es->line_count = 1;
4569
4570 /*
4571 * In Win95 look and feel, the WS_BORDER style is replaced by the
4572 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4573 * control a non client area. Not always. This coordinates in some
4574 * way with the window creation code in dialog.c When making
4575 * modifications please ensure that the code still works for edit
4576 * controls created directly with style 0x50800000, exStyle 0 (
4577 * which should have a single pixel border)
4578 */
4579 if (TWEAK_WineLook != WIN31_LOOK)
4580 {
4581 es->style &= ~WS_BORDER;
4582 }
4583 else
4584 {
4585 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
4586 SetWindowLongA( hwnd, GWL_STYLE,
4587 GetWindowLongA( hwnd, GWL_STYLE ) & ~WS_BORDER );
4588 }
4589
4590 return TRUE;
4591}
4592
4593/*********************************************************************
4594 *
4595 * WM_PAINT
4596 *
4597 */
4598static void EDIT_WM_Paint(HWND hwnd, EDITSTATE *es, WPARAM wParam)
4599{
4600 PAINTSTRUCT ps;
4601 INT i;
4602 HDC dc;
4603 HFONT old_font = 0;
4604 RECT rc;
4605 RECT rcLine;
4606 RECT rcRgn;
4607 BOOL rev = es->bEnableState &&
4608 ((es->flags & EF_FOCUSED) ||
4609 (es->style & ES_NOHIDESEL));
4610 if (!wParam)
4611 dc = BeginPaint(hwnd, &ps);
4612 else
4613 dc = (HDC) wParam;
4614 if(es->style & WS_BORDER) {
4615 GetClientRect(hwnd, &rc);
4616 if(es->style & ES_MULTILINE) {
4617 if(es->style & WS_HSCROLL) rc.bottom++;
4618 if(es->style & WS_VSCROLL) rc.right++;
4619 }
4620 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4621 }
4622 IntersectClipRect(dc, es->format_rect.left,
4623 es->format_rect.top,
4624 es->format_rect.right,
4625 es->format_rect.bottom);
4626 if (es->style & ES_MULTILINE) {
4627 GetClientRect(hwnd, &rc);
4628 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4629 }
4630 if (es->font)
4631 old_font = SelectObject(dc, es->font);
4632 if ( get_app_version() >= 0x40000 &&(
4633 !es->bEnableState || (es->style & ES_READONLY)))
4634 EDIT_SEND_CTLCOLORSTATIC(hwnd, dc);
4635 else
4636 EDIT_SEND_CTLCOLOR(hwnd, dc);
4637
4638 if (!es->bEnableState)
4639 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4640 GetClipBox(dc, &rcRgn);
4641 if (es->style & ES_MULTILINE) {
4642 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4643 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4644 EDIT_GetLineRect(hwnd, es, i, 0, -1, &rcLine);
4645 if (IntersectRect(&rc, &rcRgn, &rcLine))
4646 EDIT_PaintLine(hwnd, es, dc, i, rev);
4647 }
4648 } else {
4649 EDIT_GetLineRect(hwnd, es, 0, 0, -1, &rcLine);
4650 if (IntersectRect(&rc, &rcRgn, &rcLine))
4651 EDIT_PaintLine(hwnd, es, dc, 0, rev);
4652 }
4653 if (es->font)
4654 SelectObject(dc, old_font);
4655
4656 if (!wParam)
4657 EndPaint(hwnd, &ps);
4658}
4659
4660
4661/*********************************************************************
4662 *
4663 * WM_PASTE
4664 *
4665 */
4666static void EDIT_WM_Paste(HWND hwnd, EDITSTATE *es)
4667{
4668 HGLOBAL hsrc;
4669 LPWSTR src;
4670
4671 /* Protect read-only edit control from modification */
4672 if(es->style & ES_READONLY)
4673 return;
4674
4675 OpenClipboard(hwnd);
4676 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4677 src = (LPWSTR)GlobalLock(hsrc);
4678 EDIT_EM_ReplaceSel(hwnd, es, TRUE, src, TRUE);
4679 GlobalUnlock(hsrc);
4680 }
4681 CloseClipboard();
4682}
4683
4684
4685/*********************************************************************
4686 *
4687 * WM_SETFOCUS
4688 *
4689 */
4690static void EDIT_WM_SetFocus(HWND hwnd, EDITSTATE *es)
4691{
4692 es->flags |= EF_FOCUSED;
4693 CreateCaret(hwnd, 0, 2, es->line_height);
4694 EDIT_SetCaretPos(hwnd, es, es->selection_end,
4695 es->flags & EF_AFTER_WRAP);
4696 if(!(es->style & ES_NOHIDESEL))
4697 EDIT_InvalidateText(hwnd, es, es->selection_start, es->selection_end);
4698 ShowCaret(hwnd);
4699 EDIT_NOTIFY_PARENT(hwnd, es, EN_SETFOCUS, "EN_SETFOCUS");
4700}
4701
4702
4703/*********************************************************************
4704 *
4705 * WM_SETFONT
4706 *
4707 * With Win95 look the margins are set to default font value unless
4708 * the system font (font == 0) is being set, in which case they are left
4709 * unchanged.
4710 *
4711 */
4712static void EDIT_WM_SetFont(HWND hwnd, EDITSTATE *es, HFONT font, BOOL redraw)
4713{
4714 TEXTMETRICW tm;
4715 HDC dc;
4716 HFONT old_font = 0;
4717 RECT r;
4718
4719 es->font = font;
4720 dc = GetDC(hwnd);
4721 if (font)
4722 old_font = SelectObject(dc, font);
4723 GetTextMetricsW(dc, &tm);
4724 es->line_height = tm.tmHeight;
4725 es->char_width = tm.tmAveCharWidth;
4726 if (font)
4727 SelectObject(dc, old_font);
4728 ReleaseDC(hwnd, dc);
4729 if (font && (TWEAK_WineLook > WIN31_LOOK))
4730 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4731 EC_USEFONTINFO, EC_USEFONTINFO);
4732
4733 /* Force the recalculation of the format rect for each font change */
4734 GetClientRect(hwnd, &r);
4735 EDIT_SetRectNP(hwnd, es, &r);
4736
4737 if (es->style & ES_MULTILINE)
4738 EDIT_BuildLineDefs_ML(hwnd, es, 0, strlenW(es->text), 0, (HRGN)0);
4739 else
4740 EDIT_CalcLineWidth_SL(hwnd, es);
4741
4742 if (redraw)
4743 EDIT_UpdateText(hwnd, es, NULL, TRUE);
4744 if (es->flags & EF_FOCUSED) {
4745 DestroyCaret();
4746 CreateCaret(hwnd, 0, 2, es->line_height);
4747 EDIT_SetCaretPos(hwnd, es, es->selection_end,
4748 es->flags & EF_AFTER_WRAP);
4749 ShowCaret(hwnd);
4750 }
4751}
4752
4753
4754/*********************************************************************
4755 *
4756 * WM_SETTEXT
4757 *
4758 * NOTES
4759 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4760 * The modified flag is reset. No notifications are sent.
4761 *
4762 * For single-line controls, reception of WM_SETTEXT triggers:
4763 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4764 *
4765 */
4766static void EDIT_WM_SetText(HWND hwnd, EDITSTATE *es, LPARAM lParam, BOOL unicode)
4767{
4768 LPWSTR text = NULL;
4769
4770 if(unicode)
4771 text = (LPWSTR)lParam;
4772 else if (lParam)
4773 {
4774 LPCSTR textA = (LPCSTR)lParam;
4775 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4776 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4777 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4778 }
4779
4780 EDIT_EM_SetSel(hwnd, es, 0, (UINT)-1, FALSE);
4781 if (text) {
4782 TRACE("%s\n", debugstr_w(text));
4783 EDIT_EM_ReplaceSel(hwnd, es, FALSE, text, FALSE);
4784 if(!unicode)
4785 HeapFree(GetProcessHeap(), 0, text);
4786 } else {
4787 static const WCHAR empty_stringW[] = {0};
4788 TRACE("<NULL>\n");
4789 EDIT_EM_ReplaceSel(hwnd, es, FALSE, empty_stringW, FALSE);
4790 }
4791 es->x_offset = 0;
4792 es->flags &= ~EF_MODIFIED;
4793 EDIT_EM_SetSel(hwnd, es, 0, 0, FALSE);
4794 /* Send the notification after the selection start and end have been set
4795 * edit control doesn't send notification on WM_SETTEXT
4796 * if it is multiline, or it is part of combobox
4797 */
4798 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4799 {
4800 EDIT_NOTIFY_PARENT(hwnd, es, EN_CHANGE, "EN_CHANGE");
4801 EDIT_NOTIFY_PARENT(hwnd, es, EN_UPDATE, "EN_UPDATE");
4802 }
4803 EDIT_EM_ScrollCaret(hwnd, es);
4804}
4805
4806
4807/*********************************************************************
4808 *
4809 * WM_SIZE
4810 *
4811 */
4812static void EDIT_WM_Size(HWND hwnd, EDITSTATE *es, UINT action, INT width, INT height)
4813{
4814 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4815 RECT rc;
4816 TRACE("width = %d, height = %d\n", width, height);
4817 SetRect(&rc, 0, 0, width, height);
4818 EDIT_SetRectNP(hwnd, es, &rc);
4819 EDIT_UpdateText(hwnd, es, NULL, TRUE);
4820 }
4821}
4822
4823
4824/*********************************************************************
4825 *
4826 * WM_STYLECHANGED
4827 *
4828 * This message is sent by SetWindowLong on having changed either the Style
4829 * or the extended style.
4830 *
4831 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4832 *
4833 * See also EDIT_WM_NCCreate
4834 *
4835 * It appears that the Windows version of the edit control allows the style
4836 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4837 * style variable which will generally be different. In this function we
4838 * update the internal style based on what changed in the externally visible
4839 * style.
4840 *
4841 * Much of this content as based upon the MSDN, especially:
4842 * Platform SDK Documentation -> User Interface Services ->
4843 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4844 * Edit Control Styles
4845 */
4846static LRESULT EDIT_WM_StyleChanged (HWND hwnd,
4847 EDITSTATE *es,
4848 WPARAM which,
4849 const STYLESTRUCT *style)
4850{
4851 if (GWL_STYLE == which) {
4852 DWORD style_change_mask;
4853 DWORD new_style;
4854 /* Only a subset of changes can be applied after the control
4855 * has been created.
4856 */
4857 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4858 ES_NUMBER;
4859 if (es->style & ES_MULTILINE)
4860 style_change_mask |= ES_WANTRETURN;
4861
4862 new_style = style->styleNew & style_change_mask;
4863
4864 /* Number overrides lowercase overrides uppercase (at least it
4865 * does in Win95). However I'll bet that ES_NUMBER would be
4866 * invalid under Win 3.1.
4867 */
4868 if (new_style & ES_NUMBER) {
4869 ; /* do not override the ES_NUMBER */
4870 } else if (new_style & ES_LOWERCASE) {
4871 new_style &= ~ES_UPPERCASE;
4872 }
4873
4874 es->style = (es->style & ~style_change_mask) | new_style;
4875 } else if (GWL_EXSTYLE == which) {
4876 ; /* FIXME - what is needed here */
4877 } else {
4878 WARN ("Invalid style change %d\n",which);
4879 }
4880
4881 return 0;
4882}
4883
4884/*********************************************************************
4885 *
4886 * WM_SYSKEYDOWN
4887 *
4888 */
4889static LRESULT EDIT_WM_SysKeyDown(HWND hwnd, EDITSTATE *es, INT key, DWORD key_data)
4890{
4891 if ((key == VK_BACK) && (key_data & 0x2000)) {
4892 if (EDIT_EM_CanUndo(es))
4893 EDIT_EM_Undo(hwnd, es);
4894 return 0;
4895 } else if (key == VK_UP || key == VK_DOWN) {
4896 if (EDIT_CheckCombo(hwnd, es, WM_SYSKEYDOWN, key))
4897 return 0;
4898 }
4899 return DefWindowProcW(hwnd, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4900}
4901
4902
4903/*********************************************************************
4904 *
4905 * WM_TIMER
4906 *
4907 */
4908static void EDIT_WM_Timer(HWND hwnd, EDITSTATE *es)
4909{
4910 if (es->region_posx < 0) {
4911 EDIT_MoveBackward(hwnd, es, TRUE);
4912 } else if (es->region_posx > 0) {
4913 EDIT_MoveForward(hwnd, es, TRUE);
4914 }
4915/*
4916 * FIXME: gotta do some vertical scrolling here, like
4917 * EDIT_EM_LineScroll(hwnd, 0, 1);
4918 */
4919}
4920
4921/*********************************************************************
4922 *
4923 * WM_VSCROLL
4924 *
4925 */
4926static LRESULT EDIT_WM_VScroll(HWND hwnd, EDITSTATE *es, INT action, INT pos)
4927{
4928 INT dy;
4929
4930 if (!(es->style & ES_MULTILINE))
4931 return 0;
4932
4933 if (!(es->style & ES_AUTOVSCROLL))
4934 return 0;
4935
4936 dy = 0;
4937 switch (action) {
4938 case SB_LINEUP:
4939 case SB_LINEDOWN:
4940 case SB_PAGEUP:
4941 case SB_PAGEDOWN:
4942 TRACE("action %d\n", action);
4943 EDIT_EM_Scroll(hwnd, es, action);
4944 return 0;
4945 case SB_TOP:
4946 TRACE("SB_TOP\n");
4947 dy = -es->y_offset;
4948 break;
4949 case SB_BOTTOM:
4950 TRACE("SB_BOTTOM\n");
4951 dy = es->line_count - 1 - es->y_offset;
4952 break;
4953 case SB_THUMBTRACK:
4954 TRACE("SB_THUMBTRACK %d\n", pos);
4955 es->flags |= EF_VSCROLL_TRACK;
4956 if(es->style & WS_VSCROLL)
4957 dy = pos - es->y_offset;
4958 else
4959 {
4960 /* Assume default scroll range 0-100 */
4961 INT vlc, new_y;
4962 /* Sanity check */
4963 if(pos < 0 || pos > 100) return 0;
4964 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4965 new_y = pos * (es->line_count - vlc) / 100;
4966 dy = es->line_count ? (new_y - es->y_offset) : 0;
4967 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4968 es->line_count, es->y_offset, pos, dy);
4969 }
4970 break;
4971 case SB_THUMBPOSITION:
4972 TRACE("SB_THUMBPOSITION %d\n", pos);
4973 es->flags &= ~EF_VSCROLL_TRACK;
4974 if(es->style & WS_VSCROLL)
4975 dy = pos - es->y_offset;
4976 else
4977 {
4978 /* Assume default scroll range 0-100 */
4979 INT vlc, new_y;
4980 /* Sanity check */
4981 if(pos < 0 || pos > 100) return 0;
4982 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4983 new_y = pos * (es->line_count - vlc) / 100;
4984 dy = es->line_count ? (new_y - es->y_offset) : 0;
4985 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4986 es->line_count, es->y_offset, pos, dy);
4987 }
4988 if (!dy)
4989 {
4990 /* force scroll info update */
4991 EDIT_UpdateScrollInfo(hwnd, es);
4992 EDIT_NOTIFY_PARENT(hwnd, es, EN_VSCROLL, "EN_VSCROLL");
4993 }
4994 break;
4995 case SB_ENDSCROLL:
4996 TRACE("SB_ENDSCROLL\n");
4997 break;
4998 /*
4999 * FIXME : the next two are undocumented !
5000 * Are we doing the right thing ?
5001 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5002 * although it's also a regular control message.
5003 */
5004 case EM_GETTHUMB: /* this one is used by NT notepad */
5005 case EM_GETTHUMB16:
5006 {
5007 LRESULT ret;
5008 if(GetWindowLongA( hwnd, GWL_STYLE ) & WS_VSCROLL)
5009 ret = GetScrollPos(hwnd, SB_VERT);
5010 else
5011 {
5012 /* Assume default scroll range 0-100 */
5013 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5014 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5015 }
5016 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5017 return ret;
5018 }
5019 case EM_LINESCROLL16:
5020 TRACE("EM_LINESCROLL16 %d\n", pos);
5021 dy = pos;
5022 break;
5023
5024 default:
5025 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5026 action, action);
5027 return 0;
5028 }
5029 if (dy)
5030 EDIT_EM_LineScroll(hwnd, es, 0, dy);
5031 return 0;
5032}
5033
5034/*********************************************************************
5035 *
5036 * EDIT_UpdateText
5037 *
5038 */
5039static void EDIT_UpdateTextRegion(HWND hwnd, EDITSTATE *es, HRGN hrgn, BOOL bErase)
5040{
5041 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(hwnd, es, EN_UPDATE, "EN_UPDATE");
5042 InvalidateRgn(hwnd, hrgn, bErase);
5043}
5044
5045
5046/*********************************************************************
5047 *
5048 * EDIT_UpdateText
5049 *
5050 */
5051static void EDIT_UpdateText(HWND hwnd, EDITSTATE *es, LPRECT rc, BOOL bErase)
5052{
5053 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(hwnd, es, EN_UPDATE, "EN_UPDATE");
5054 InvalidateRect(hwnd, rc, bErase);
5055}
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