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[User32]
[reactos.git] / reactos / win32ss / user / user32 / controls / edit.c
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 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 *
23 * NOTES
24 *
25 * This code was audited for completeness against the documented features
26 * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
27 *
28 * Unless otherwise noted, we believe this code to be complete, as per
29 * the specification mentioned above.
30 * If you discover missing features, or bugs, please note them below.
31 *
32 * TODO:
33 * - EDITBALLOONTIP structure
34 * - EM_GETCUEBANNER/Edit_GetCueBannerText
35 * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip
36 * - EM_SETCUEBANNER/Edit_SetCueBannerText
37 * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip
38 * - EM_GETIMESTATUS, EM_SETIMESTATUS
39 * - EN_ALIGN_LTR_EC
40 * - EN_ALIGN_RTL_EC
41 * - ES_OEMCONVERT
42 *
43 */
44
45 #include <user32.h>
46 #define WIN32_LEAN_AND_MEAN
47 #include <usp10.h>
48
49 #include <wine/debug.h>
50
51 WINE_DEFAULT_DEBUG_CHANNEL(edit);
52 WINE_DECLARE_DEBUG_CHANNEL(combo);
53 WINE_DECLARE_DEBUG_CHANNEL(relay);
54
55 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
56 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
57 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
58 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
59
60 /*
61 * extra flags for EDITSTATE.flags field
62 */
63 #define EF_MODIFIED 0x0001 /* text has been modified */
64 #define EF_FOCUSED 0x0002 /* we have input focus */
65 #define EF_UPDATE 0x0004 /* notify parent of changed state */
66 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
67 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
68 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
69 wrapped line, instead of in front of the next character */
70 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
71 #define EF_DIALOGMODE 0x0200 /* Indicates that we are inside a dialog window */
72
73 typedef enum
74 {
75 END_0 = 0, /* line ends with terminating '\0' character */
76 END_WRAP, /* line is wrapped */
77 END_HARD, /* line ends with a hard return '\r\n' */
78 END_SOFT, /* line ends with a soft return '\r\r\n' */
79 END_RICH /* line ends with a single '\n' */
80 } LINE_END;
81
82 typedef struct tagLINEDEF {
83 INT length; /* bruto length of a line in bytes */
84 INT net_length; /* netto length of a line in visible characters */
85 LINE_END ending;
86 INT width; /* width of the line in pixels */
87 INT index; /* line index into the buffer */
88 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data */
89 struct tagLINEDEF *next;
90 } LINEDEF;
91
92 typedef struct
93 {
94 BOOL is_unicode; /* how the control was created */
95 LPWSTR text; /* the actual contents of the control */
96 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
97 UINT buffer_size; /* the size of the buffer in characters */
98 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
99 HFONT font; /* NULL means standard system font */
100 INT x_offset; /* scroll offset for multi lines this is in pixels
101 for single lines it's in characters */
102 INT line_height; /* height of a screen line in pixels */
103 INT char_width; /* average character width in pixels */
104 DWORD style; /* sane version of wnd->dwStyle */
105 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
106 INT undo_insert_count; /* number of characters inserted in sequence */
107 UINT undo_position; /* character index of the insertion and deletion */
108 LPWSTR undo_text; /* deleted text */
109 UINT undo_buffer_size; /* size of the deleted text buffer */
110 INT selection_start; /* == selection_end if no selection */
111 INT selection_end; /* == current caret position */
112 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
113 INT left_margin; /* in pixels */
114 INT right_margin; /* in pixels */
115 RECT format_rect;
116 INT text_width; /* width of the widest line in pixels for multi line controls
117 and just line width for single line controls */
118 INT region_posx; /* Position of cursor relative to region: */
119 INT region_posy; /* -1: to left, 0: within, 1: to right */
120 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
121 INT line_count; /* number of lines */
122 INT y_offset; /* scroll offset in number of lines */
123 BOOL bCaptureState; /* flag indicating whether mouse was captured */
124 BOOL bEnableState; /* flag keeping the enable state */
125 HWND hwndSelf; /* the our window handle */
126 HWND hwndParent; /* Handle of parent for sending EN_* messages.
127 Even if parent will change, EN_* messages
128 should be sent to the first parent. */
129 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
130 INT wheelDeltaRemainder; /* scroll wheel delta left over after scrolling whole lines */
131 /*
132 * only for multi line controls
133 */
134 INT lock_count; /* amount of re-entries in the EditWndProc */
135 INT tabs_count;
136 LPINT tabs;
137 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
138 HLOCAL hloc32W; /* our unicode local memory block */
139 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
140 or EM_SETHANDLE */
141 HLOCAL hlocapp; /* The text buffer handle belongs to the app */
142 /*
143 * IME Data
144 */
145 UINT composition_len; /* length of composition, 0 == no composition */
146 int composition_start; /* the character position for the composition */
147 /*
148 * Uniscribe Data
149 */
150 SCRIPT_LOGATTR *logAttr;
151 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data for single line controls */
152 } EDITSTATE;
153
154
155 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
156 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
157
158 /* used for disabled or read-only edit control */
159 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
160 do \
161 { /* Notify parent which has created this edit control */ \
162 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
163 SendMessageW(es->hwndParent, WM_COMMAND, \
164 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
165 (LPARAM)(es->hwndSelf)); \
166 } while(0)
167
168 static const WCHAR empty_stringW[] = {0};
169 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
170
171 /*********************************************************************
172 *
173 * EM_CANUNDO
174 *
175 */
176 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
177 {
178 return (es->undo_insert_count || strlenW(es->undo_text));
179 }
180
181
182 /*********************************************************************
183 *
184 * EM_EMPTYUNDOBUFFER
185 *
186 */
187 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
188 {
189 es->undo_insert_count = 0;
190 *es->undo_text = '\0';
191 }
192
193
194 /**********************************************************************
195 * get_app_version
196 *
197 * Returns the window version in case Wine emulates a later version
198 * of windows than the application expects.
199 *
200 * In a number of cases when windows runs an application that was
201 * designed for an earlier windows version, windows reverts
202 * to "old" behaviour of that earlier version.
203 *
204 * An example is a disabled edit control that needs to be painted.
205 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
206 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
207 * applications with an expected version 0f 4.0 or higher.
208 *
209 */
210 static DWORD get_app_version(void)
211 {
212 static DWORD version;
213 if (!version)
214 {
215 DWORD dwEmulatedVersion;
216 OSVERSIONINFOW info;
217 DWORD dwProcVersion = GetProcessVersion(0);
218
219 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
220 GetVersionExW( &info );
221 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
222 /* FIXME: this may not be 100% correct; see discussion on the
223 * wine developer list in Nov 1999 */
224 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
225 }
226 return version;
227 }
228
229 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
230 {
231 HBRUSH hbrush;
232 UINT msg;
233
234 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
235 msg = WM_CTLCOLORSTATIC;
236 else
237 msg = WM_CTLCOLOREDIT;
238
239 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
240 #ifdef __REACTOS__
241 /* ReactOS r54259 */
242 hbrush = GetControlBrush(es->hwndSelf, hdc, msg);
243 #else
244 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
245 if (!hbrush)
246 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
247 #endif
248 return hbrush;
249 }
250
251
252 static inline UINT get_text_length(EDITSTATE *es)
253 {
254 if(es->text_length == (UINT)-1)
255 es->text_length = strlenW(es->text);
256 return es->text_length;
257 }
258
259
260 /*********************************************************************
261 *
262 * EDIT_WordBreakProc
263 *
264 * Find the beginning of words.
265 * Note: unlike the specs for a WordBreakProc, this function can
266 * only be called without linebreaks between s[0] up to
267 * s[count - 1]. Remember it is only called
268 * internally, so we can decide this for ourselves.
269 * Additionally we will always be breaking the full string.
270 *
271 */
272 static INT EDIT_WordBreakProc(EDITSTATE *es, LPWSTR s, INT index, INT count, INT action)
273 {
274 INT ret = 0;
275
276 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
277
278 if(!s) return 0;
279
280 if (!es->logAttr)
281 {
282 SCRIPT_ANALYSIS psa;
283
284 memset(&psa,0,sizeof(SCRIPT_ANALYSIS));
285 psa.eScript = SCRIPT_UNDEFINED;
286
287 es->logAttr = HeapAlloc(GetProcessHeap(), 0, sizeof(SCRIPT_LOGATTR) * get_text_length(es));
288 ScriptBreak(es->text, get_text_length(es), &psa, es->logAttr);
289 }
290
291 switch (action) {
292 case WB_LEFT:
293 if (index)
294 index--;
295 while (index && !es->logAttr[index].fSoftBreak)
296 index--;
297 ret = index;
298 break;
299 case WB_RIGHT:
300 if (!count)
301 break;
302 while (index < count && s[index] && !es->logAttr[index].fSoftBreak)
303 index++;
304 ret = index;
305 break;
306 case WB_ISDELIMITER:
307 ret = es->logAttr[index].fWhiteSpace;
308 break;
309 default:
310 ERR("unknown action code, please report !\n");
311 break;
312 }
313 return ret;
314 }
315
316
317 /*********************************************************************
318 *
319 * EDIT_CallWordBreakProc
320 *
321 * Call appropriate WordBreakProc (internal or external).
322 *
323 * Note: The "start" argument should always be an index referring
324 * to es->text. The actual wordbreak proc might be
325 * 16 bit, so we can't always pass any 32 bit LPSTR.
326 * Hence we assume that es->text is the buffer that holds
327 * the string under examination (we can decide this for ourselves).
328 *
329 */
330 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
331 {
332 INT ret;
333
334 if (es->word_break_proc)
335 {
336 if(es->is_unicode)
337 {
338 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
339
340 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
341 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
342 ret = wbpW(es->text + start, index, count, action);
343 }
344 else
345 {
346 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
347 INT countA;
348 CHAR *textA;
349
350 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
351 textA = HeapAlloc(GetProcessHeap(), 0, countA);
352 #ifdef __REACTOS__
353 /* ReactOS r33503 */
354 if (textA == NULL) return 0;
355 #endif
356 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
357 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
358 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
359 ret = wbpA(textA, index, countA, action);
360 HeapFree(GetProcessHeap(), 0, textA);
361 }
362 }
363 else
364 ret = EDIT_WordBreakProc(es, es->text, index+start, count+start, action) - start;
365
366 return ret;
367 }
368
369 static inline void EDIT_InvalidateUniscribeData_linedef(LINEDEF *line_def)
370 {
371 if (line_def->ssa)
372 {
373 ScriptStringFree(&line_def->ssa);
374 line_def->ssa = NULL;
375 }
376 }
377
378 static inline void EDIT_InvalidateUniscribeData(EDITSTATE *es)
379 {
380 LINEDEF *line_def = es->first_line_def;
381 while (line_def)
382 {
383 EDIT_InvalidateUniscribeData_linedef(line_def);
384 line_def = line_def->next;
385 }
386 if (es->ssa)
387 {
388 ScriptStringFree(&es->ssa);
389 es->ssa = NULL;
390 }
391 }
392
393 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData_linedef(EDITSTATE *es, HDC dc, LINEDEF *line_def)
394 {
395 if (!line_def)
396 return NULL;
397
398 if (line_def->net_length && !line_def->ssa)
399 {
400 int index = line_def->index;
401 HFONT old_font = NULL;
402 HDC udc = dc;
403 SCRIPT_TABDEF tabdef;
404 HRESULT hr;
405
406 if (!udc)
407 udc = GetDC(es->hwndSelf);
408 if (es->font)
409 old_font = SelectObject(udc, es->font);
410
411 tabdef.cTabStops = es->tabs_count;
412 tabdef.iScale = 0;
413 tabdef.pTabStops = es->tabs;
414 tabdef.iTabOrigin = 0;
415
416 hr = ScriptStringAnalyse(udc, &es->text[index], line_def->net_length,
417 #ifdef __REACTOS__
418 /* ReactOS r57679 */
419 (3*line_def->net_length/2+16), -1,
420 #else
421 (1.5*line_def->net_length+16), -1,
422 #endif
423 SSA_LINK|SSA_FALLBACK|SSA_GLYPHS|SSA_TAB, -1,
424 NULL, NULL, NULL, &tabdef, NULL, &line_def->ssa);
425 if (FAILED(hr))
426 {
427 WARN("ScriptStringAnalyse failed (%x)\n",hr);
428 line_def->ssa = NULL;
429 }
430
431 if (es->font)
432 SelectObject(udc, old_font);
433 if (udc != dc)
434 ReleaseDC(es->hwndSelf, udc);
435 }
436
437 return line_def->ssa;
438 }
439
440 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData(EDITSTATE *es, HDC dc, INT line)
441 {
442 LINEDEF *line_def;
443
444 if (!(es->style & ES_MULTILINE))
445 {
446 if (!es->ssa)
447 {
448 INT length = get_text_length(es);
449 HFONT old_font = NULL;
450 HDC udc = dc;
451
452 if (!udc)
453 udc = GetDC(es->hwndSelf);
454 if (es->font)
455 old_font = SelectObject(udc, es->font);
456
457 if (es->style & ES_PASSWORD)
458 #ifdef __REACTOS__
459 /* ReactOS r57677 */
460 ScriptStringAnalyse(udc, &es->password_char, length, (3*length/2+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS|SSA_PASSWORD, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
461 #else
462 ScriptStringAnalyse(udc, &es->password_char, length, (1.5*length+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS|SSA_PASSWORD, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
463 #endif
464 else
465 #ifdef __REACTOS__
466 /* ReactOS r57677 */
467 ScriptStringAnalyse(udc, es->text, length, (3*length/2+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
468 #else
469 ScriptStringAnalyse(udc, es->text, length, (1.5*length+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
470 #endif
471
472 if (es->font)
473 SelectObject(udc, old_font);
474 if (udc != dc)
475 ReleaseDC(es->hwndSelf, udc);
476 }
477 return es->ssa;
478 }
479 else
480 {
481 line_def = es->first_line_def;
482 while (line_def && line)
483 {
484 line_def = line_def->next;
485 line--;
486 }
487
488 return EDIT_UpdateUniscribeData_linedef(es,dc,line_def);
489 }
490 }
491
492 static inline INT get_vertical_line_count(EDITSTATE *es)
493 {
494 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
495 return max(1,vlc);
496 }
497
498 /*********************************************************************
499 *
500 * EDIT_BuildLineDefs_ML
501 *
502 * Build linked list of text lines.
503 * Lines can end with '\0' (last line), a character (if it is wrapped),
504 * a soft return '\r\r\n' or a hard return '\r\n'
505 *
506 */
507 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
508 {
509 LPWSTR current_position, cp;
510 INT fw;
511 LINEDEF *current_line;
512 LINEDEF *previous_line;
513 LINEDEF *start_line;
514 INT line_index = 0, nstart_line, nstart_index;
515 INT line_count = es->line_count;
516 INT orig_net_length;
517 RECT rc;
518 INT vlc;
519
520 if (istart == iend && delta == 0)
521 return;
522
523 previous_line = NULL;
524 current_line = es->first_line_def;
525
526 /* Find starting line. istart must lie inside an existing line or
527 * at the end of buffer */
528 do {
529 if (istart < current_line->index + current_line->length ||
530 current_line->ending == END_0)
531 break;
532
533 previous_line = current_line;
534 current_line = current_line->next;
535 line_index++;
536 } while (current_line);
537
538 if (!current_line) /* Error occurred start is not inside previous buffer */
539 {
540 FIXME(" modification occurred outside buffer\n");
541 return;
542 }
543
544 /* Remember start of modifications in order to calculate update region */
545 nstart_line = line_index;
546 nstart_index = current_line->index;
547
548 /* We must start to reformat from the previous line since the modifications
549 * may have caused the line to wrap upwards. */
550 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
551 {
552 line_index--;
553 current_line = previous_line;
554 }
555 start_line = current_line;
556
557 fw = es->format_rect.right - es->format_rect.left;
558 current_position = es->text + current_line->index;
559 vlc = get_vertical_line_count(es);
560 do {
561 if (current_line != start_line)
562 {
563 if (!current_line || current_line->index + delta > current_position - es->text)
564 {
565 /* The buffer has been expanded, create a new line and
566 insert it into the link list */
567 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF));
568 #ifdef __REACTOS__
569 /* ReactOS r33509 */
570 if (new_line == NULL)
571 break;
572 #endif
573 new_line->next = previous_line->next;
574 previous_line->next = new_line;
575 current_line = new_line;
576 es->line_count++;
577 }
578 else if (current_line->index + delta < current_position - es->text)
579 {
580 /* The previous line merged with this line so we delete this extra entry */
581 previous_line->next = current_line->next;
582 HeapFree(GetProcessHeap(), 0, current_line);
583 current_line = previous_line->next;
584 es->line_count--;
585 continue;
586 }
587 else /* current_line->index + delta == current_position */
588 {
589 if (current_position - es->text > iend)
590 break; /* We reached end of line modifications */
591 /* else recalculate this line */
592 }
593 }
594
595 current_line->index = current_position - es->text;
596 orig_net_length = current_line->net_length;
597
598 /* Find end of line */
599 cp = current_position;
600 while (*cp) {
601 if (*cp == '\n') break;
602 if ((*cp == '\r') && (*(cp + 1) == '\n'))
603 break;
604 cp++;
605 }
606
607 /* Mark type of line termination */
608 if (!(*cp)) {
609 current_line->ending = END_0;
610 current_line->net_length = strlenW(current_position);
611 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
612 current_line->ending = END_SOFT;
613 current_line->net_length = cp - current_position - 1;
614 } else if (*cp == '\n') {
615 current_line->ending = END_RICH;
616 current_line->net_length = cp - current_position;
617 } else {
618 current_line->ending = END_HARD;
619 current_line->net_length = cp - current_position;
620 }
621
622 if (current_line->net_length)
623 {
624 const SIZE *sz;
625 EDIT_InvalidateUniscribeData_linedef(current_line);
626 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
627 if (current_line->ssa)
628 {
629 sz = ScriptString_pSize(current_line->ssa);
630 /* Calculate line width */
631 current_line->width = sz->cx;
632 }
633 else current_line->width = es->char_width * current_line->net_length;
634 }
635 else current_line->width = 0;
636
637 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
638
639 /* Line breaks just look back from the end and find the next break and try that. */
640
641 if (!(es->style & ES_AUTOHSCROLL)) {
642 if (current_line->width > fw && fw > es->char_width) {
643
644 INT prev, next;
645 int w;
646 const SIZE *sz;
647 float d;
648
649 prev = current_line->net_length - 1;
650 w = current_line->net_length;
651 d = (float)current_line->width/(float)fw;
652 if (d > 1.2f) d -= 0.2f;
653 next = prev/d;
654 if (next >= prev) next = prev-1;
655 do {
656 prev = EDIT_CallWordBreakProc(es, current_position - es->text,
657 next, current_line->net_length, WB_LEFT);
658 current_line->net_length = prev;
659 EDIT_InvalidateUniscribeData_linedef(current_line);
660 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
661 if (current_line->ssa)
662 sz = ScriptString_pSize(current_line->ssa);
663 else sz = 0;
664 if (sz)
665 current_line->width = sz->cx;
666 else
667 prev = 0;
668 next = prev - 1;
669 } while (prev && current_line->width > fw);
670 current_line->net_length = w;
671
672 if (prev == 0) { /* Didn't find a line break so force a break */
673 INT *piDx;
674 const INT *count;
675
676 EDIT_InvalidateUniscribeData_linedef(current_line);
677 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
678
679 if (current_line->ssa)
680 {
681 count = ScriptString_pcOutChars(current_line->ssa);
682 piDx = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * (*count));
683 ScriptStringGetLogicalWidths(current_line->ssa,piDx);
684
685 prev = current_line->net_length-1;
686 do {
687 current_line->width -= piDx[prev];
688 prev--;
689 } while ( prev > 0 && current_line->width > fw);
690 if (prev<=0)
691 prev = 1;
692 HeapFree(GetProcessHeap(),0,piDx);
693 }
694 else
695 prev = (fw / es->char_width);
696 }
697
698 /* If the first line we are calculating, wrapped before istart, we must
699 * adjust istart in order for this to be reflected in the update region. */
700 if (current_line->index == nstart_index && istart > current_line->index + prev)
701 istart = current_line->index + prev;
702 /* else if we are updating the previous line before the first line we
703 * are re-calculating and it expanded */
704 else if (current_line == start_line &&
705 current_line->index != nstart_index && orig_net_length < prev)
706 {
707 /* Line expanded due to an upwards line wrap so we must partially include
708 * previous line in update region */
709 nstart_line = line_index;
710 nstart_index = current_line->index;
711 istart = current_line->index + orig_net_length;
712 }
713
714 current_line->net_length = prev;
715 current_line->ending = END_WRAP;
716
717 if (current_line->net_length > 0)
718 {
719 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
720 if (current_line->ssa)
721 {
722 sz = ScriptString_pSize(current_line->ssa);
723 current_line->width = sz->cx;
724 }
725 else
726 current_line->width = 0;
727 }
728 else current_line->width = 0;
729 }
730 else if (current_line == start_line &&
731 current_line->index != nstart_index &&
732 orig_net_length < current_line->net_length) {
733 /* The previous line expanded but it's still not as wide as the client rect */
734 /* The expansion is due to an upwards line wrap so we must partially include
735 it in the update region */
736 nstart_line = line_index;
737 nstart_index = current_line->index;
738 istart = current_line->index + orig_net_length;
739 }
740 }
741
742
743 /* Adjust length to include line termination */
744 switch (current_line->ending) {
745 case END_SOFT:
746 current_line->length = current_line->net_length + 3;
747 break;
748 case END_RICH:
749 current_line->length = current_line->net_length + 1;
750 break;
751 case END_HARD:
752 current_line->length = current_line->net_length + 2;
753 break;
754 case END_WRAP:
755 case END_0:
756 current_line->length = current_line->net_length;
757 break;
758 }
759 es->text_width = max(es->text_width, current_line->width);
760 current_position += current_line->length;
761 previous_line = current_line;
762
763 /* Discard data for non-visible lines. It will be calculated as needed */
764 if ((line_index < es->y_offset) || (line_index > es->y_offset + vlc))
765 EDIT_InvalidateUniscribeData_linedef(current_line);
766
767 current_line = current_line->next;
768 line_index++;
769 } while (previous_line->ending != END_0);
770
771 /* Finish adjusting line indexes by delta or remove hanging lines */
772 if (previous_line->ending == END_0)
773 {
774 LINEDEF *pnext = NULL;
775
776 previous_line->next = NULL;
777 while (current_line)
778 {
779 pnext = current_line->next;
780 EDIT_InvalidateUniscribeData_linedef(current_line);
781 HeapFree(GetProcessHeap(), 0, current_line);
782 current_line = pnext;
783 es->line_count--;
784 }
785 }
786 else if (delta != 0)
787 {
788 while (current_line)
789 {
790 current_line->index += delta;
791 current_line = current_line->next;
792 }
793 }
794
795 /* Calculate rest of modification rectangle */
796 if (hrgn)
797 {
798 HRGN tmphrgn;
799 /*
800 * We calculate two rectangles. One for the first line which may have
801 * an indent with respect to the format rect. The other is a format-width
802 * rectangle that spans the rest of the lines that changed or moved.
803 */
804 rc.top = es->format_rect.top + nstart_line * es->line_height -
805 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
806 rc.bottom = rc.top + es->line_height;
807 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
808 rc.left = es->format_rect.left;
809 else
810 rc.left = LOWORD(EDIT_EM_PosFromChar(es, nstart_index, FALSE));
811 rc.right = es->format_rect.right;
812 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
813
814 rc.top = rc.bottom;
815 rc.left = es->format_rect.left;
816 rc.right = es->format_rect.right;
817 /*
818 * If lines were added or removed we must re-paint the remainder of the
819 * lines since the remaining lines were either shifted up or down.
820 */
821 if (line_count < es->line_count) /* We added lines */
822 rc.bottom = es->line_count * es->line_height;
823 else if (line_count > es->line_count) /* We removed lines */
824 rc.bottom = line_count * es->line_height;
825 else
826 rc.bottom = line_index * es->line_height;
827 rc.bottom += es->format_rect.top;
828 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
829 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
830 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
831 DeleteObject(tmphrgn);
832 }
833 }
834
835 /*********************************************************************
836 *
837 * EDIT_CalcLineWidth_SL
838 *
839 */
840 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
841 {
842 EDIT_UpdateUniscribeData(es, NULL, 0);
843 if (es->ssa)
844 {
845 const SIZE *size;
846 size = ScriptString_pSize(es->ssa);
847 es->text_width = size->cx;
848 }
849 else
850 es->text_width = 0;
851 }
852
853 /*********************************************************************
854 *
855 * EDIT_CharFromPos
856 *
857 * Beware: This is not the function called on EM_CHARFROMPOS
858 * The position _can_ be outside the formatting / client
859 * rectangle
860 * The return value is only the character index
861 *
862 */
863 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
864 {
865 INT index;
866
867 if (es->style & ES_MULTILINE) {
868 int trailing;
869 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
870 INT line_index = 0;
871 LINEDEF *line_def = es->first_line_def;
872 EDIT_UpdateUniscribeData(es, NULL, line);
873 while ((line > 0) && line_def->next) {
874 line_index += line_def->length;
875 line_def = line_def->next;
876 line--;
877 }
878
879 x += es->x_offset - es->format_rect.left;
880 if (es->style & ES_RIGHT)
881 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
882 else if (es->style & ES_CENTER)
883 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
884 if (x >= line_def->width) {
885 if (after_wrap)
886 *after_wrap = (line_def->ending == END_WRAP);
887 return line_index + line_def->net_length;
888 }
889 if (x <= 0 || !line_def->ssa) {
890 if (after_wrap)
891 *after_wrap = FALSE;
892 return line_index;
893 }
894
895 ScriptStringXtoCP(line_def->ssa, x , &index, &trailing);
896 if (trailing) index++;
897 index += line_index;
898 if (after_wrap)
899 *after_wrap = ((index == line_index + line_def->net_length) &&
900 (line_def->ending == END_WRAP));
901 } else {
902 INT xoff = 0;
903 INT trailing;
904 if (after_wrap)
905 *after_wrap = FALSE;
906 x -= es->format_rect.left;
907 if (!x)
908 return es->x_offset;
909
910 if (!es->x_offset)
911 {
912 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
913 if (es->style & ES_RIGHT)
914 x -= indent;
915 else if (es->style & ES_CENTER)
916 x -= indent / 2;
917 }
918
919 EDIT_UpdateUniscribeData(es, NULL, 0);
920 if (es->x_offset)
921 {
922 if (es->ssa)
923 {
924 if (es->x_offset>= get_text_length(es))
925 {
926 const SIZE *size;
927 size = ScriptString_pSize(es->ssa);
928 xoff = size->cx;
929 }
930 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
931 }
932 else
933 xoff = 0;
934 }
935 if (x < 0)
936 {
937 if (x + xoff > 0 || !es->ssa)
938 {
939 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
940 if (trailing) index++;
941 }
942 else
943 index = 0;
944 }
945 else
946 {
947 if (x)
948 {
949 const SIZE *size = NULL;
950 if (es->ssa)
951 size = ScriptString_pSize(es->ssa);
952 if (!size)
953 index = 0;
954 else if (x > size->cx)
955 index = get_text_length(es);
956 else if (es->ssa)
957 {
958 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
959 if (trailing) index++;
960 }
961 else
962 index = 0;
963 }
964 else
965 index = es->x_offset;
966 }
967 }
968 return index;
969 }
970
971
972 /*********************************************************************
973 *
974 * EDIT_ConfinePoint
975 *
976 * adjusts the point to be within the formatting rectangle
977 * (so CharFromPos returns the nearest _visible_ character)
978 *
979 */
980 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
981 {
982 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
983 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
984 }
985
986
987 /*********************************************************************
988 *
989 * EM_LINEFROMCHAR
990 *
991 */
992 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
993 {
994 INT line;
995 LINEDEF *line_def;
996
997 if (!(es->style & ES_MULTILINE))
998 return 0;
999 if (index > (INT)get_text_length(es))
1000 return es->line_count - 1;
1001 if (index == -1)
1002 index = min(es->selection_start, es->selection_end);
1003
1004 line = 0;
1005 line_def = es->first_line_def;
1006 index -= line_def->length;
1007 while ((index >= 0) && line_def->next) {
1008 line++;
1009 line_def = line_def->next;
1010 index -= line_def->length;
1011 }
1012 return line;
1013 }
1014
1015
1016 /*********************************************************************
1017 *
1018 * EM_LINEINDEX
1019 *
1020 */
1021 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
1022 {
1023 INT line_index;
1024 const LINEDEF *line_def;
1025
1026 if (!(es->style & ES_MULTILINE))
1027 return 0;
1028 if (line >= es->line_count)
1029 return -1;
1030
1031 line_index = 0;
1032 line_def = es->first_line_def;
1033 if (line == -1) {
1034 INT index = es->selection_end - line_def->length;
1035 while ((index >= 0) && line_def->next) {
1036 line_index += line_def->length;
1037 line_def = line_def->next;
1038 index -= line_def->length;
1039 }
1040 } else {
1041 while (line > 0) {
1042 line_index += line_def->length;
1043 line_def = line_def->next;
1044 line--;
1045 }
1046 }
1047 return line_index;
1048 }
1049
1050
1051 /*********************************************************************
1052 *
1053 * EM_LINELENGTH
1054 *
1055 */
1056 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
1057 {
1058 LINEDEF *line_def;
1059
1060 if (!(es->style & ES_MULTILINE))
1061 return get_text_length(es);
1062
1063 if (index == -1) {
1064 /* get the number of remaining non-selected chars of selected lines */
1065 INT32 l; /* line number */
1066 INT32 li; /* index of first char in line */
1067 INT32 count;
1068 l = EDIT_EM_LineFromChar(es, es->selection_start);
1069 /* # chars before start of selection area */
1070 count = es->selection_start - EDIT_EM_LineIndex(es, l);
1071 l = EDIT_EM_LineFromChar(es, es->selection_end);
1072 /* # chars after end of selection */
1073 li = EDIT_EM_LineIndex(es, l);
1074 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
1075 return count;
1076 }
1077 line_def = es->first_line_def;
1078 index -= line_def->length;
1079 while ((index >= 0) && line_def->next) {
1080 line_def = line_def->next;
1081 index -= line_def->length;
1082 }
1083 return line_def->net_length;
1084 }
1085
1086
1087 /*********************************************************************
1088 *
1089 * EM_POSFROMCHAR
1090 *
1091 */
1092 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
1093 {
1094 INT len = get_text_length(es);
1095 INT l;
1096 INT li;
1097 INT x = 0;
1098 INT y = 0;
1099 INT w;
1100 INT lw;
1101 LINEDEF *line_def;
1102
1103 index = min(index, len);
1104 if (es->style & ES_MULTILINE) {
1105 l = EDIT_EM_LineFromChar(es, index);
1106 EDIT_UpdateUniscribeData(es, NULL, l);
1107
1108 y = (l - es->y_offset) * es->line_height;
1109 li = EDIT_EM_LineIndex(es, l);
1110 if (after_wrap && (li == index) && l) {
1111 INT l2 = l - 1;
1112 line_def = es->first_line_def;
1113 while (l2) {
1114 line_def = line_def->next;
1115 l2--;
1116 }
1117 if (line_def->ending == END_WRAP) {
1118 l--;
1119 y -= es->line_height;
1120 li = EDIT_EM_LineIndex(es, l);
1121 }
1122 }
1123
1124 line_def = es->first_line_def;
1125 while (line_def->index != li)
1126 line_def = line_def->next;
1127
1128 lw = line_def->width;
1129 w = es->format_rect.right - es->format_rect.left;
1130 if (line_def->ssa)
1131 {
1132 ScriptStringCPtoX(line_def->ssa, (index - 1) - li, TRUE, &x);
1133 x -= es->x_offset;
1134 }
1135 else
1136 x = es->x_offset;
1137
1138 if (es->style & ES_RIGHT)
1139 x = w - (lw - x);
1140 else if (es->style & ES_CENTER)
1141 x += (w - lw) / 2;
1142 } else {
1143 INT xoff = 0;
1144 INT xi = 0;
1145 EDIT_UpdateUniscribeData(es, NULL, 0);
1146 if (es->x_offset)
1147 {
1148 if (es->ssa)
1149 {
1150 if (es->x_offset >= get_text_length(es))
1151 {
1152 int leftover = es->x_offset - get_text_length(es);
1153 if (es->ssa)
1154 {
1155 const SIZE *size;
1156 size = ScriptString_pSize(es->ssa);
1157 xoff = size->cx;
1158 }
1159 else
1160 xoff = 0;
1161 xoff += es->char_width * leftover;
1162 }
1163 else
1164 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
1165 }
1166 else
1167 xoff = 0;
1168 }
1169 if (index)
1170 {
1171 if (index >= get_text_length(es))
1172 {
1173 if (es->ssa)
1174 {
1175 const SIZE *size;
1176 size = ScriptString_pSize(es->ssa);
1177 xi = size->cx;
1178 }
1179 else
1180 xi = 0;
1181 }
1182 else if (es->ssa)
1183 ScriptStringCPtoX(es->ssa, index, FALSE, &xi);
1184 else
1185 xi = 0;
1186 }
1187 x = xi - xoff;
1188
1189 if (index >= es->x_offset) {
1190 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
1191 {
1192 w = es->format_rect.right - es->format_rect.left;
1193 if (w > es->text_width)
1194 {
1195 if (es->style & ES_RIGHT)
1196 x += w - es->text_width;
1197 else if (es->style & ES_CENTER)
1198 x += (w - es->text_width) / 2;
1199 }
1200 }
1201 }
1202 y = 0;
1203 }
1204 x += es->format_rect.left;
1205 y += es->format_rect.top;
1206 return MAKELONG((INT16)x, (INT16)y);
1207 }
1208
1209
1210 /*********************************************************************
1211 *
1212 * EDIT_GetLineRect
1213 *
1214 * Calculates the bounding rectangle for a line from a starting
1215 * column to an ending column.
1216 *
1217 */
1218 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1219 {
1220 SCRIPT_STRING_ANALYSIS ssa;
1221 INT line_index = 0;
1222 INT pt1, pt2, pt3;
1223
1224 if (es->style & ES_MULTILINE)
1225 {
1226 const LINEDEF *line_def = NULL;
1227 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1228 if (line >= es->line_count)
1229 return;
1230
1231 line_def = es->first_line_def;
1232 if (line == -1) {
1233 INT index = es->selection_end - line_def->length;
1234 while ((index >= 0) && line_def->next) {
1235 line_index += line_def->length;
1236 line_def = line_def->next;
1237 index -= line_def->length;
1238 }
1239 } else {
1240 while (line > 0) {
1241 line_index += line_def->length;
1242 line_def = line_def->next;
1243 line--;
1244 }
1245 }
1246 ssa = line_def->ssa;
1247 }
1248 else
1249 {
1250 line_index = 0;
1251 rc->top = es->format_rect.top;
1252 ssa = es->ssa;
1253 }
1254
1255 rc->bottom = rc->top + es->line_height;
1256 pt1 = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1257 pt2 = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1258 if (ssa)
1259 {
1260 ScriptStringCPtoX(ssa, scol, FALSE, &pt3);
1261 pt3+=es->format_rect.left;
1262 }
1263 else pt3 = pt1;
1264 rc->right = max(max(pt1 , pt2),pt3);
1265 rc->left = min(min(pt1, pt2),pt3);
1266 }
1267
1268
1269 static inline void text_buffer_changed(EDITSTATE *es)
1270 {
1271 es->text_length = (UINT)-1;
1272
1273 HeapFree( GetProcessHeap(), 0, es->logAttr );
1274 es->logAttr = NULL;
1275 EDIT_InvalidateUniscribeData(es);
1276 }
1277
1278 /*********************************************************************
1279 * EDIT_LockBuffer
1280 *
1281 */
1282 static void EDIT_LockBuffer(EDITSTATE *es)
1283 {
1284 if (es->hlocapp) return;
1285
1286 if (!es->text) {
1287
1288 #ifdef __REACTOS__
1289 /* FIXME: What is this ? */
1290 CHAR *textA = NULL; // ReactOS Hacked! r45670
1291 //UINT countA = 0;
1292
1293 if(es->hloc32W)
1294 {
1295 if(es->hloc32A)
1296 {
1297 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1298 textA = LocalLock(es->hloc32A);
1299 //countA = strlen(textA) + 1;
1300 }
1301 }
1302 else {
1303 ERR("no buffer ... please report\n");
1304 return;
1305 }
1306
1307 if (textA) //// ReactOS
1308 {
1309 #else
1310 if(!es->hloc32W) return;
1311
1312 if(es->hloc32A)
1313 {
1314 CHAR *textA = LocalLock(es->hloc32A);
1315 #endif
1316 HLOCAL hloc32W_new;
1317 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
1318 if(countW_new > es->buffer_size + 1)
1319 {
1320 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1321 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1322 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1323 if(hloc32W_new)
1324 {
1325 es->hloc32W = hloc32W_new;
1326 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1327 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1328 }
1329 else
1330 WARN("FAILED! Will synchronize partially\n");
1331 }
1332 es->text = LocalLock(es->hloc32W);
1333 MultiByteToWideChar(CP_ACP, 0, textA, -1, es->text, es->buffer_size + 1);
1334 LocalUnlock(es->hloc32A);
1335 }
1336 else es->text = LocalLock(es->hloc32W);
1337 }
1338 es->lock_count++;
1339 }
1340
1341
1342 /*********************************************************************
1343 *
1344 * EDIT_UnlockBuffer
1345 *
1346 */
1347 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
1348 {
1349 if (es->hlocapp) return;
1350
1351 /* Edit window might be already destroyed */
1352 if(!IsWindow(es->hwndSelf))
1353 {
1354 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
1355 return;
1356 }
1357
1358 if (!es->lock_count) {
1359 ERR("lock_count == 0 ... please report\n");
1360 return;
1361 }
1362 if (!es->text) {
1363 ERR("es->text == 0 ... please report\n");
1364 return;
1365 }
1366
1367 if (force || (es->lock_count == 1)) {
1368 if (es->hloc32W) {
1369 UINT countA = 0;
1370 UINT countW = get_text_length(es) + 1;
1371
1372 if(es->hloc32A)
1373 {
1374 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
1375 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1376 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
1377 countA = LocalSize(es->hloc32A);
1378 if(countA_new > countA)
1379 {
1380 HLOCAL hloc32A_new;
1381 UINT alloc_size = ROUND_TO_GROW(countA_new);
1382 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
1383 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1384 if(hloc32A_new)
1385 {
1386 es->hloc32A = hloc32A_new;
1387 countA = LocalSize(hloc32A_new);
1388 TRACE("Real new size %d bytes\n", countA);
1389 }
1390 else
1391 WARN("FAILED! Will synchronize partially\n");
1392 }
1393 WideCharToMultiByte(CP_ACP, 0, es->text, countW,
1394 LocalLock(es->hloc32A), countA, NULL, NULL);
1395 LocalUnlock(es->hloc32A);
1396 }
1397
1398 LocalUnlock(es->hloc32W);
1399 es->text = NULL;
1400 }
1401 else {
1402 ERR("no buffer ... please report\n");
1403 return;
1404 }
1405 }
1406 es->lock_count--;
1407 }
1408
1409
1410 /*********************************************************************
1411 *
1412 * EDIT_MakeFit
1413 *
1414 * Try to fit size + 1 characters in the buffer.
1415 */
1416 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1417 {
1418 HLOCAL hNew32W;
1419
1420 if (size <= es->buffer_size)
1421 return TRUE;
1422
1423 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1424
1425 /* Force edit to unlock its buffer. es->text now NULL */
1426 EDIT_UnlockBuffer(es, TRUE);
1427
1428 if (es->hloc32W) {
1429 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1430 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1431 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1432 es->hloc32W = hNew32W;
1433 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1434 }
1435 }
1436
1437 EDIT_LockBuffer(es);
1438
1439 if (es->buffer_size < size) {
1440 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1441 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1442 return FALSE;
1443 } else {
1444 TRACE("We now have %d+1\n", es->buffer_size);
1445 return TRUE;
1446 }
1447 }
1448
1449
1450 /*********************************************************************
1451 *
1452 * EDIT_MakeUndoFit
1453 *
1454 * Try to fit size + 1 bytes in the undo buffer.
1455 *
1456 */
1457 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1458 {
1459 UINT alloc_size;
1460
1461 if (size <= es->undo_buffer_size)
1462 return TRUE;
1463
1464 TRACE("trying to ReAlloc to %d+1\n", size);
1465
1466 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1467 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1468 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1469 return TRUE;
1470 }
1471 else
1472 {
1473 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1474 return FALSE;
1475 }
1476 }
1477
1478
1479 /*********************************************************************
1480 *
1481 * EDIT_UpdateTextRegion
1482 *
1483 */
1484 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
1485 {
1486 if (es->flags & EF_UPDATE) {
1487 es->flags &= ~EF_UPDATE;
1488 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1489 }
1490 InvalidateRgn(es->hwndSelf, hrgn, bErase);
1491 }
1492
1493
1494 /*********************************************************************
1495 *
1496 * EDIT_UpdateText
1497 *
1498 */
1499 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
1500 {
1501 if (es->flags & EF_UPDATE) {
1502 es->flags &= ~EF_UPDATE;
1503 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1504 }
1505 InvalidateRect(es->hwndSelf, rc, bErase);
1506 }
1507
1508 /*********************************************************************
1509 *
1510 * EDIT_SL_InvalidateText
1511 *
1512 * Called from EDIT_InvalidateText().
1513 * Does the job for single-line controls only.
1514 *
1515 */
1516 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1517 {
1518 RECT line_rect;
1519 RECT rc;
1520
1521 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1522 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1523 EDIT_UpdateText(es, &rc, TRUE);
1524 }
1525
1526 /*********************************************************************
1527 *
1528 * EDIT_ML_InvalidateText
1529 *
1530 * Called from EDIT_InvalidateText().
1531 * Does the job for multi-line controls only.
1532 *
1533 */
1534 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1535 {
1536 INT vlc = get_vertical_line_count(es);
1537 INT sl = EDIT_EM_LineFromChar(es, start);
1538 INT el = EDIT_EM_LineFromChar(es, end);
1539 INT sc;
1540 INT ec;
1541 RECT rc1;
1542 RECT rcWnd;
1543 RECT rcLine;
1544 RECT rcUpdate;
1545 INT l;
1546
1547 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1548 return;
1549
1550 sc = start - EDIT_EM_LineIndex(es, sl);
1551 ec = end - EDIT_EM_LineIndex(es, el);
1552 if (sl < es->y_offset) {
1553 sl = es->y_offset;
1554 sc = 0;
1555 }
1556 if (el > es->y_offset + vlc) {
1557 el = es->y_offset + vlc;
1558 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1559 }
1560 GetClientRect(es->hwndSelf, &rc1);
1561 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1562 if (sl == el) {
1563 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1564 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1565 EDIT_UpdateText(es, &rcUpdate, TRUE);
1566 } else {
1567 EDIT_GetLineRect(es, sl, sc,
1568 EDIT_EM_LineLength(es,
1569 EDIT_EM_LineIndex(es, sl)),
1570 &rcLine);
1571 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1572 EDIT_UpdateText(es, &rcUpdate, TRUE);
1573 for (l = sl + 1 ; l < el ; l++) {
1574 EDIT_GetLineRect(es, l, 0,
1575 EDIT_EM_LineLength(es,
1576 EDIT_EM_LineIndex(es, l)),
1577 &rcLine);
1578 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1579 EDIT_UpdateText(es, &rcUpdate, TRUE);
1580 }
1581 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1582 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1583 EDIT_UpdateText(es, &rcUpdate, TRUE);
1584 }
1585 }
1586
1587
1588 /*********************************************************************
1589 *
1590 * EDIT_InvalidateText
1591 *
1592 * Invalidate the text from offset start up to, but not including,
1593 * offset end. Useful for (re)painting the selection.
1594 * Regions outside the linewidth are not invalidated.
1595 * end == -1 means end == TextLength.
1596 * start and end need not be ordered.
1597 *
1598 */
1599 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1600 {
1601 if (end == start)
1602 return;
1603
1604 if (end == -1)
1605 end = get_text_length(es);
1606
1607 if (end < start) {
1608 INT tmp = start;
1609 start = end;
1610 end = tmp;
1611 }
1612
1613 if (es->style & ES_MULTILINE)
1614 EDIT_ML_InvalidateText(es, start, end);
1615 else
1616 EDIT_SL_InvalidateText(es, start, end);
1617 }
1618
1619
1620 /*********************************************************************
1621 *
1622 * EDIT_EM_SetSel
1623 *
1624 * note: unlike the specs say: the order of start and end
1625 * _is_ preserved in Windows. (i.e. start can be > end)
1626 * In other words: this handler is OK
1627 *
1628 */
1629 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
1630 {
1631 UINT old_start = es->selection_start;
1632 UINT old_end = es->selection_end;
1633 UINT len = get_text_length(es);
1634
1635 if (start == (UINT)-1) {
1636 start = es->selection_end;
1637 end = es->selection_end;
1638 } else {
1639 start = min(start, len);
1640 end = min(end, len);
1641 }
1642 es->selection_start = start;
1643 es->selection_end = end;
1644 if (after_wrap)
1645 es->flags |= EF_AFTER_WRAP;
1646 else
1647 es->flags &= ~EF_AFTER_WRAP;
1648 /* Compute the necessary invalidation region. */
1649 /* Note that we don't need to invalidate regions which have
1650 * "never" been selected, or those which are "still" selected.
1651 * In fact, every time we hit a selection boundary, we can
1652 * *toggle* whether we need to invalidate. Thus we can optimize by
1653 * *sorting* the interval endpoints. Let's assume that we sort them
1654 * in this order:
1655 * start <= end <= old_start <= old_end
1656 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
1657 * in 5 comparisons; i.e. it is impossible to do better than the
1658 * following: */
1659 ORDER_UINT(end, old_end);
1660 ORDER_UINT(start, old_start);
1661 ORDER_UINT(old_start, old_end);
1662 ORDER_UINT(start, end);
1663 /* Note that at this point 'end' and 'old_start' are not in order, but
1664 * start is definitely the min. and old_end is definitely the max. */
1665 if (end != old_start)
1666 {
1667 /*
1668 * One can also do
1669 * ORDER_UINT32(end, old_start);
1670 * EDIT_InvalidateText(es, start, end);
1671 * EDIT_InvalidateText(es, old_start, old_end);
1672 * in place of the following if statement.
1673 * (That would complete the optimal five-comparison four-element sort.)
1674 */
1675 if (old_start > end )
1676 {
1677 EDIT_InvalidateText(es, start, end);
1678 EDIT_InvalidateText(es, old_start, old_end);
1679 }
1680 else
1681 {
1682 EDIT_InvalidateText(es, start, old_start);
1683 EDIT_InvalidateText(es, end, old_end);
1684 }
1685 }
1686 else EDIT_InvalidateText(es, start, old_end);
1687 }
1688
1689
1690 /*********************************************************************
1691 *
1692 * EDIT_UpdateScrollInfo
1693 *
1694 */
1695 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
1696 {
1697 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
1698 {
1699 SCROLLINFO si;
1700 si.cbSize = sizeof(SCROLLINFO);
1701 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1702 si.nMin = 0;
1703 si.nMax = es->line_count - 1;
1704 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1705 si.nPos = es->y_offset;
1706 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1707 si.nMin, si.nMax, si.nPage, si.nPos);
1708 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
1709 }
1710
1711 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
1712 {
1713 SCROLLINFO si;
1714 si.cbSize = sizeof(SCROLLINFO);
1715 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1716 si.nMin = 0;
1717 si.nMax = es->text_width - 1;
1718 si.nPage = es->format_rect.right - es->format_rect.left;
1719 si.nPos = es->x_offset;
1720 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1721 si.nMin, si.nMax, si.nPage, si.nPos);
1722 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
1723 }
1724 }
1725
1726
1727 /*********************************************************************
1728 *
1729 * EDIT_EM_LineScroll_internal
1730 *
1731 * Version of EDIT_EM_LineScroll for internal use.
1732 * It doesn't refuse if ES_MULTILINE is set and assumes that
1733 * dx is in pixels, dy - in lines.
1734 *
1735 */
1736 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
1737 {
1738 INT nyoff;
1739 INT x_offset_in_pixels;
1740 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
1741 es->line_height;
1742
1743 if (es->style & ES_MULTILINE)
1744 {
1745 x_offset_in_pixels = es->x_offset;
1746 }
1747 else
1748 {
1749 dy = 0;
1750 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
1751 }
1752
1753 if (-dx > x_offset_in_pixels)
1754 dx = -x_offset_in_pixels;
1755 if (dx > es->text_width - x_offset_in_pixels)
1756 dx = es->text_width - x_offset_in_pixels;
1757 nyoff = max(0, es->y_offset + dy);
1758 if (nyoff >= es->line_count - lines_per_page)
1759 nyoff = max(0, es->line_count - lines_per_page);
1760 dy = (es->y_offset - nyoff) * es->line_height;
1761 if (dx || dy) {
1762 RECT rc1;
1763 RECT rc;
1764
1765 es->y_offset = nyoff;
1766 if(es->style & ES_MULTILINE)
1767 es->x_offset += dx;
1768 else
1769 es->x_offset += dx / es->char_width;
1770
1771 GetClientRect(es->hwndSelf, &rc1);
1772 IntersectRect(&rc, &rc1, &es->format_rect);
1773 ScrollWindowEx(es->hwndSelf, -dx, dy,
1774 NULL, &rc, NULL, NULL, SW_INVALIDATE);
1775 /* force scroll info update */
1776 EDIT_UpdateScrollInfo(es);
1777 }
1778 if (dx && !(es->flags & EF_HSCROLL_TRACK))
1779 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
1780 if (dy && !(es->flags & EF_VSCROLL_TRACK))
1781 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
1782 return TRUE;
1783 }
1784
1785 /*********************************************************************
1786 *
1787 * EM_LINESCROLL
1788 *
1789 * NOTE: dx is in average character widths, dy - in lines;
1790 *
1791 */
1792 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
1793 {
1794 if (!(es->style & ES_MULTILINE))
1795 return FALSE;
1796
1797 dx *= es->char_width;
1798 return EDIT_EM_LineScroll_internal(es, dx, dy);
1799 }
1800
1801
1802 /*********************************************************************
1803 *
1804 * EM_SCROLL
1805 *
1806 */
1807 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
1808 {
1809 INT dy;
1810
1811 if (!(es->style & ES_MULTILINE))
1812 return (LRESULT)FALSE;
1813
1814 dy = 0;
1815
1816 switch (action) {
1817 case SB_LINEUP:
1818 if (es->y_offset)
1819 dy = -1;
1820 break;
1821 case SB_LINEDOWN:
1822 if (es->y_offset < es->line_count - 1)
1823 dy = 1;
1824 break;
1825 case SB_PAGEUP:
1826 if (es->y_offset)
1827 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
1828 break;
1829 case SB_PAGEDOWN:
1830 if (es->y_offset < es->line_count - 1)
1831 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1832 break;
1833 default:
1834 return (LRESULT)FALSE;
1835 }
1836 if (dy) {
1837 INT vlc = get_vertical_line_count(es);
1838 /* check if we are going to move too far */
1839 if(es->y_offset + dy > es->line_count - vlc)
1840 dy = max(es->line_count - vlc, 0) - es->y_offset;
1841
1842 /* Notification is done in EDIT_EM_LineScroll */
1843 if(dy) {
1844 EDIT_EM_LineScroll(es, 0, dy);
1845 return MAKELONG(dy, TRUE);
1846 }
1847
1848 }
1849 return (LRESULT)FALSE;
1850 }
1851
1852
1853 /*********************************************************************
1854 *
1855 * EDIT_SetCaretPos
1856 *
1857 */
1858 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
1859 BOOL after_wrap)
1860 {
1861 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
1862 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
1863 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
1864 }
1865
1866
1867 /*********************************************************************
1868 *
1869 * EM_SCROLLCARET
1870 *
1871 */
1872 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
1873 {
1874 if (es->style & ES_MULTILINE) {
1875 INT l;
1876 INT vlc;
1877 INT ww;
1878 INT cw = es->char_width;
1879 INT x;
1880 INT dy = 0;
1881 INT dx = 0;
1882
1883 l = EDIT_EM_LineFromChar(es, es->selection_end);
1884 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
1885 vlc = get_vertical_line_count(es);
1886 if (l >= es->y_offset + vlc)
1887 dy = l - vlc + 1 - es->y_offset;
1888 if (l < es->y_offset)
1889 dy = l - es->y_offset;
1890 ww = es->format_rect.right - es->format_rect.left;
1891 if (x < es->format_rect.left)
1892 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
1893 if (x > es->format_rect.right)
1894 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
1895 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1896 {
1897 /* check if we are going to move too far */
1898 if(es->x_offset + dx + ww > es->text_width)
1899 dx = es->text_width - ww - es->x_offset;
1900 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1901 EDIT_EM_LineScroll_internal(es, dx, dy);
1902 }
1903 } else {
1904 INT x;
1905 INT goal;
1906 INT format_width;
1907
1908 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1909 format_width = es->format_rect.right - es->format_rect.left;
1910 if (x < es->format_rect.left) {
1911 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
1912 do {
1913 es->x_offset--;
1914 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1915 } while ((x < goal) && es->x_offset);
1916 /* FIXME: use ScrollWindow() somehow to improve performance */
1917 EDIT_UpdateText(es, NULL, TRUE);
1918 } else if (x > es->format_rect.right) {
1919 INT x_last;
1920 INT len = get_text_length(es);
1921 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
1922 do {
1923 es->x_offset++;
1924 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1925 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
1926 } while ((x > goal) && (x_last > es->format_rect.right));
1927 /* FIXME: use ScrollWindow() somehow to improve performance */
1928 EDIT_UpdateText(es, NULL, TRUE);
1929 }
1930 }
1931
1932 if(es->flags & EF_FOCUSED)
1933 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
1934 }
1935
1936
1937 /*********************************************************************
1938 *
1939 * EDIT_MoveBackward
1940 *
1941 */
1942 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1943 {
1944 INT e = es->selection_end;
1945
1946 if (e) {
1947 e--;
1948 if ((es->style & ES_MULTILINE) && e &&
1949 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1950 e--;
1951 if (e && (es->text[e - 1] == '\r'))
1952 e--;
1953 }
1954 }
1955 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1956 EDIT_EM_ScrollCaret(es);
1957 }
1958
1959
1960 /*********************************************************************
1961 *
1962 * EDIT_MoveDown_ML
1963 *
1964 * Only for multi line controls
1965 * Move the caret one line down, on a column with the nearest
1966 * x coordinate on the screen (might be a different column).
1967 *
1968 */
1969 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1970 {
1971 INT s = es->selection_start;
1972 INT e = es->selection_end;
1973 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1974 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1975 INT x = (short)LOWORD(pos);
1976 INT y = (short)HIWORD(pos);
1977
1978 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1979 if (!extend)
1980 s = e;
1981 EDIT_EM_SetSel(es, s, e, after_wrap);
1982 EDIT_EM_ScrollCaret(es);
1983 }
1984
1985
1986 /*********************************************************************
1987 *
1988 * EDIT_MoveEnd
1989 *
1990 */
1991 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
1992 {
1993 BOOL after_wrap = FALSE;
1994 INT e;
1995
1996 /* Pass a high value in x to make sure of receiving the end of the line */
1997 if (!ctrl && (es->style & ES_MULTILINE))
1998 e = EDIT_CharFromPos(es, 0x3fffffff,
1999 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2000 else
2001 e = get_text_length(es);
2002 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2003 EDIT_EM_ScrollCaret(es);
2004 }
2005
2006
2007 /*********************************************************************
2008 *
2009 * EDIT_MoveForward
2010 *
2011 */
2012 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2013 {
2014 INT e = es->selection_end;
2015
2016 if (es->text[e]) {
2017 e++;
2018 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2019 if (es->text[e] == '\n')
2020 e++;
2021 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2022 e += 2;
2023 }
2024 }
2025 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2026 EDIT_EM_ScrollCaret(es);
2027 }
2028
2029
2030 /*********************************************************************
2031 *
2032 * EDIT_MoveHome
2033 *
2034 * Home key: move to beginning of line.
2035 *
2036 */
2037 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2038 {
2039 INT e;
2040
2041 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2042 if (!ctrl && (es->style & ES_MULTILINE))
2043 e = EDIT_CharFromPos(es, -es->x_offset,
2044 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2045 else
2046 e = 0;
2047 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2048 EDIT_EM_ScrollCaret(es);
2049 }
2050
2051
2052 /*********************************************************************
2053 *
2054 * EDIT_MovePageDown_ML
2055 *
2056 * Only for multi line controls
2057 * Move the caret one page down, on a column with the nearest
2058 * x coordinate on the screen (might be a different column).
2059 *
2060 */
2061 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2062 {
2063 INT s = es->selection_start;
2064 INT e = es->selection_end;
2065 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2066 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2067 INT x = (short)LOWORD(pos);
2068 INT y = (short)HIWORD(pos);
2069
2070 e = EDIT_CharFromPos(es, x,
2071 y + (es->format_rect.bottom - es->format_rect.top),
2072 &after_wrap);
2073 if (!extend)
2074 s = e;
2075 EDIT_EM_SetSel(es, s, e, after_wrap);
2076 EDIT_EM_ScrollCaret(es);
2077 }
2078
2079
2080 /*********************************************************************
2081 *
2082 * EDIT_MovePageUp_ML
2083 *
2084 * Only for multi line controls
2085 * Move the caret one page up, on a column with the nearest
2086 * x coordinate on the screen (might be a different column).
2087 *
2088 */
2089 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2090 {
2091 INT s = es->selection_start;
2092 INT e = es->selection_end;
2093 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2094 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2095 INT x = (short)LOWORD(pos);
2096 INT y = (short)HIWORD(pos);
2097
2098 e = EDIT_CharFromPos(es, x,
2099 y - (es->format_rect.bottom - es->format_rect.top),
2100 &after_wrap);
2101 if (!extend)
2102 s = e;
2103 EDIT_EM_SetSel(es, s, e, after_wrap);
2104 EDIT_EM_ScrollCaret(es);
2105 }
2106
2107
2108 /*********************************************************************
2109 *
2110 * EDIT_MoveUp_ML
2111 *
2112 * Only for multi line controls
2113 * Move the caret one line up, on a column with the nearest
2114 * x coordinate on the screen (might be a different column).
2115 *
2116 */
2117 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2118 {
2119 INT s = es->selection_start;
2120 INT e = es->selection_end;
2121 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2122 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2123 INT x = (short)LOWORD(pos);
2124 INT y = (short)HIWORD(pos);
2125
2126 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2127 if (!extend)
2128 s = e;
2129 EDIT_EM_SetSel(es, s, e, after_wrap);
2130 EDIT_EM_ScrollCaret(es);
2131 }
2132
2133
2134 /*********************************************************************
2135 *
2136 * EDIT_MoveWordBackward
2137 *
2138 */
2139 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2140 {
2141 INT s = es->selection_start;
2142 INT e = es->selection_end;
2143 INT l;
2144 INT ll;
2145 INT li;
2146
2147 l = EDIT_EM_LineFromChar(es, e);
2148 ll = EDIT_EM_LineLength(es, e);
2149 li = EDIT_EM_LineIndex(es, l);
2150 if (e - li == 0) {
2151 if (l) {
2152 li = EDIT_EM_LineIndex(es, l - 1);
2153 e = li + EDIT_EM_LineLength(es, li);
2154 }
2155 } else {
2156 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2157 }
2158 if (!extend)
2159 s = e;
2160 EDIT_EM_SetSel(es, s, e, FALSE);
2161 EDIT_EM_ScrollCaret(es);
2162 }
2163
2164
2165 /*********************************************************************
2166 *
2167 * EDIT_MoveWordForward
2168 *
2169 */
2170 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2171 {
2172 INT s = es->selection_start;
2173 INT e = es->selection_end;
2174 INT l;
2175 INT ll;
2176 INT li;
2177
2178 l = EDIT_EM_LineFromChar(es, e);
2179 ll = EDIT_EM_LineLength(es, e);
2180 li = EDIT_EM_LineIndex(es, l);
2181 if (e - li == ll) {
2182 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2183 e = EDIT_EM_LineIndex(es, l + 1);
2184 } else {
2185 e = li + EDIT_CallWordBreakProc(es,
2186 li, e - li + 1, ll, WB_RIGHT);
2187 }
2188 if (!extend)
2189 s = e;
2190 EDIT_EM_SetSel(es, s, e, FALSE);
2191 EDIT_EM_ScrollCaret(es);
2192 }
2193
2194
2195 /*********************************************************************
2196 *
2197 * EDIT_PaintText
2198 *
2199 */
2200 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2201 {
2202 COLORREF BkColor;
2203 COLORREF TextColor;
2204 LOGFONTW underline_font;
2205 HFONT hUnderline = 0;
2206 HFONT old_font = 0;
2207 INT ret;
2208 INT li;
2209 INT BkMode;
2210 SIZE size;
2211
2212 if (!count)
2213 return 0;
2214 BkMode = GetBkMode(dc);
2215 BkColor = GetBkColor(dc);
2216 TextColor = GetTextColor(dc);
2217 if (rev) {
2218 if (es->composition_len == 0)
2219 {
2220 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2221 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2222 SetBkMode( dc, OPAQUE);
2223 }
2224 else
2225 {
2226 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2227 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2228 underline_font.lfUnderline = TRUE;
2229 hUnderline = CreateFontIndirectW(&underline_font);
2230 old_font = SelectObject(dc,hUnderline);
2231 }
2232 }
2233 li = EDIT_EM_LineIndex(es, line);
2234 if (es->style & ES_MULTILINE) {
2235 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2236 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2237 } else {
2238 TextOutW(dc, x, y, es->text + li + col, count);
2239 GetTextExtentPoint32W(dc, es->text + li + col, count, &size);
2240 ret = size.cx;
2241 }
2242 if (rev) {
2243 if (es->composition_len == 0)
2244 {
2245 SetBkColor(dc, BkColor);
2246 SetTextColor(dc, TextColor);
2247 SetBkMode( dc, BkMode);
2248 }
2249 else
2250 {
2251 if (old_font)
2252 SelectObject(dc,old_font);
2253 if (hUnderline)
2254 DeleteObject(hUnderline);
2255 }
2256 }
2257 return ret;
2258 }
2259
2260
2261 /*********************************************************************
2262 *
2263 * EDIT_PaintLine
2264 *
2265 */
2266 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2267 {
2268 INT s = 0;
2269 INT e = 0;
2270 INT li = 0;
2271 INT ll = 0;
2272 INT x;
2273 INT y;
2274 LRESULT pos;
2275 SCRIPT_STRING_ANALYSIS ssa;
2276
2277 if (es->style & ES_MULTILINE) {
2278 INT vlc = get_vertical_line_count(es);
2279
2280 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2281 return;
2282 } else if (line)
2283 return;
2284
2285 TRACE("line=%d\n", line);
2286
2287 ssa = EDIT_UpdateUniscribeData(es, dc, line);
2288 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2289 x = (short)LOWORD(pos);
2290 y = (short)HIWORD(pos);
2291
2292 if (es->style & ES_MULTILINE)
2293 {
2294 int line_idx = line;
2295 x = -es->x_offset;
2296 if (es->style & ES_RIGHT || es->style & ES_CENTER)
2297 {
2298 LINEDEF *line_def = es->first_line_def;
2299 int w, lw;
2300
2301 while (line_def && line_idx)
2302 {
2303 line_def = line_def->next;
2304 line_idx--;
2305 }
2306 w = es->format_rect.right - es->format_rect.left;
2307 lw = line_def->width;
2308
2309 if (es->style & ES_RIGHT)
2310 x = w - (lw - x);
2311 else if (es->style & ES_CENTER)
2312 x += (w - lw) / 2;
2313 }
2314 x += es->format_rect.left;
2315 }
2316
2317 if (rev)
2318 {
2319 li = EDIT_EM_LineIndex(es, line);
2320 ll = EDIT_EM_LineLength(es, li);
2321 s = min(es->selection_start, es->selection_end);
2322 e = max(es->selection_start, es->selection_end);
2323 s = min(li + ll, max(li, s));
2324 e = min(li + ll, max(li, e));
2325 }
2326
2327 if (ssa)
2328 ScriptStringOut(ssa, x, y, 0, &es->format_rect, s - li, e - li, FALSE);
2329 else if (rev && (s != e) &&
2330 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2331 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2332 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2333 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2334 } else
2335 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2336 }
2337
2338
2339 /*********************************************************************
2340 *
2341 * EDIT_AdjustFormatRect
2342 *
2343 * Adjusts the format rectangle for the current font and the
2344 * current client rectangle.
2345 *
2346 */
2347 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2348 {
2349 RECT ClientRect;
2350
2351 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2352 if (es->style & ES_MULTILINE)
2353 {
2354 INT fw, vlc, max_x_offset, max_y_offset;
2355
2356 vlc = get_vertical_line_count(es);
2357 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2358
2359 /* correct es->x_offset */
2360 fw = es->format_rect.right - es->format_rect.left;
2361 max_x_offset = es->text_width - fw;
2362 if(max_x_offset < 0) max_x_offset = 0;
2363 if(es->x_offset > max_x_offset)
2364 es->x_offset = max_x_offset;
2365
2366 /* correct es->y_offset */
2367 max_y_offset = es->line_count - vlc;
2368 if(max_y_offset < 0) max_y_offset = 0;
2369 if(es->y_offset > max_y_offset)
2370 es->y_offset = max_y_offset;
2371
2372 /* force scroll info update */
2373 EDIT_UpdateScrollInfo(es);
2374 }
2375 else
2376 /* Windows doesn't care to fix text placement for SL controls */
2377 es->format_rect.bottom = es->format_rect.top + es->line_height;
2378
2379 /* Always stay within the client area */
2380 GetClientRect(es->hwndSelf, &ClientRect);
2381 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2382
2383 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2384 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2385
2386 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2387 }
2388
2389
2390 /*********************************************************************
2391 *
2392 * EDIT_SetRectNP
2393 *
2394 * note: this is not (exactly) the handler called on EM_SETRECTNP
2395 * it is also used to set the rect of a single line control
2396 *
2397 */
2398 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2399 {
2400 LONG_PTR ExStyle;
2401 INT bw, bh;
2402 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2403
2404 CopyRect(&es->format_rect, rc);
2405
2406 if (ExStyle & WS_EX_CLIENTEDGE) {
2407 es->format_rect.left++;
2408 es->format_rect.right--;
2409
2410 if (es->format_rect.bottom - es->format_rect.top
2411 >= es->line_height + 2)
2412 {
2413 es->format_rect.top++;
2414 es->format_rect.bottom--;
2415 }
2416 }
2417 else if (es->style & WS_BORDER) {
2418 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2419 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2420 es->format_rect.left += bw;
2421 es->format_rect.right -= bw;
2422 if (es->format_rect.bottom - es->format_rect.top
2423 >= es->line_height + 2 * bh)
2424 {
2425 es->format_rect.top += bh;
2426 es->format_rect.bottom -= bh;
2427 }
2428 }
2429
2430 es->format_rect.left += es->left_margin;
2431 es->format_rect.right -= es->right_margin;
2432 EDIT_AdjustFormatRect(es);
2433 }
2434
2435
2436 /*********************************************************************
2437 *
2438 * EM_CHARFROMPOS
2439 *
2440 * returns line number (not index) in high-order word of result.
2441 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2442 * to Richedit, not to the edit control. Original documentation is valid.
2443 * FIXME: do the specs mean to return -1 if outside client area or
2444 * if outside formatting rectangle ???
2445 *
2446 */
2447 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2448 {
2449 POINT pt;
2450 RECT rc;
2451 INT index;
2452
2453 pt.x = x;
2454 pt.y = y;
2455 GetClientRect(es->hwndSelf, &rc);
2456 if (!PtInRect(&rc, pt))
2457 return -1;
2458
2459 index = EDIT_CharFromPos(es, x, y, NULL);
2460 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2461 }
2462
2463
2464 /*********************************************************************
2465 *
2466 * EM_FMTLINES
2467 *
2468 * Enable or disable soft breaks.
2469 *
2470 * This means: insert or remove the soft linebreak character (\r\r\n).
2471 * Take care to check if the text still fits the buffer after insertion.
2472 * If not, notify with EN_ERRSPACE.
2473 *
2474 */
2475 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2476 {
2477 es->flags &= ~EF_USE_SOFTBRK;
2478 if (add_eol) {
2479 es->flags |= EF_USE_SOFTBRK;
2480 FIXME("soft break enabled, not implemented\n");
2481 }
2482 return add_eol;
2483 }
2484
2485
2486 /*********************************************************************
2487 *
2488 * EM_GETHANDLE
2489 *
2490 * Hopefully this won't fire back at us.
2491 * We always start with a fixed buffer in the local heap.
2492 * Despite of the documentation says that the local heap is used
2493 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2494 * buffer on the local heap.
2495 *
2496 */
2497 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2498 {
2499 HLOCAL hLocal;
2500
2501 if (!(es->style & ES_MULTILINE))
2502 return 0;
2503
2504 if(es->is_unicode)
2505 hLocal = es->hloc32W;
2506 else
2507 {
2508 if(!es->hloc32A)
2509 {
2510 CHAR *textA;
2511 UINT countA, alloc_size;
2512 TRACE("Allocating 32-bit ANSI alias buffer\n");
2513 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2514 alloc_size = ROUND_TO_GROW(countA);
2515 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2516 {
2517 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2518 return 0;
2519 }
2520 textA = LocalLock(es->hloc32A);
2521 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2522 LocalUnlock(es->hloc32A);
2523 }
2524 hLocal = es->hloc32A;
2525 }
2526
2527 EDIT_UnlockBuffer(es, TRUE);
2528
2529 /* The text buffer handle belongs to the app */
2530 es->hlocapp = hLocal;
2531
2532 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2533 return hLocal;
2534 }
2535
2536
2537 /*********************************************************************
2538 *
2539 * EM_GETLINE
2540 *
2541 */
2542 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2543 {
2544 LPWSTR src;
2545 INT line_len, dst_len;
2546 INT i;
2547
2548 if (es->style & ES_MULTILINE) {
2549 if (line >= es->line_count)
2550 return 0;
2551 } else
2552 line = 0;
2553 i = EDIT_EM_LineIndex(es, line);
2554 src = es->text + i;
2555 line_len = EDIT_EM_LineLength(es, i);
2556 dst_len = *(WORD *)dst;
2557 if(unicode)
2558 {
2559 if(dst_len <= line_len)
2560 {
2561 memcpy(dst, src, dst_len * sizeof(WCHAR));
2562 return dst_len;
2563 }
2564 else /* Append 0 if enough space */
2565 {
2566 memcpy(dst, src, line_len * sizeof(WCHAR));
2567 dst[line_len] = 0;
2568 return line_len;
2569 }
2570 }
2571 else
2572 {
2573 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2574 if(!ret && line_len) /* Insufficient buffer size */
2575 return dst_len;
2576 if(ret < dst_len) /* Append 0 if enough space */
2577 ((LPSTR)dst)[ret] = 0;
2578 return ret;
2579 }
2580 }
2581
2582
2583 /*********************************************************************
2584 *
2585 * EM_GETSEL
2586 *
2587 */
2588 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2589 {
2590 UINT s = es->selection_start;
2591 UINT e = es->selection_end;
2592
2593 ORDER_UINT(s, e);
2594 if (start)
2595 *start = s;
2596 if (end)
2597 *end = e;
2598 return MAKELONG(s, e);
2599 }
2600
2601
2602 /*********************************************************************
2603 *
2604 * EM_REPLACESEL
2605 *
2606 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2607 *
2608 */
2609 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2610 {
2611 UINT strl = strlenW(lpsz_replace);
2612 UINT tl = get_text_length(es);
2613 UINT utl;
2614 UINT s;
2615 UINT e;
2616 UINT i;
2617 UINT size;
2618 LPWSTR p;
2619 HRGN hrgn = 0;
2620 LPWSTR buf = NULL;
2621 UINT bufl;
2622
2623 TRACE("%s, can_undo %d, send_update %d\n",
2624 debugstr_w(lpsz_replace), can_undo, send_update);
2625
2626 s = es->selection_start;
2627 e = es->selection_end;
2628
2629 EDIT_InvalidateUniscribeData(es);
2630 if ((s == e) && !strl)
2631 return;
2632
2633 ORDER_UINT(s, e);
2634
2635 size = tl - (e - s) + strl;
2636 if (!size)
2637 es->text_width = 0;
2638
2639 /* Issue the EN_MAXTEXT notification and continue with replacing text
2640 * so that buffer limit is honored. */
2641 if ((honor_limit) && (size > es->buffer_limit)) {
2642 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2643 /* Buffer limit can be smaller than the actual length of text in combobox */
2644 if (es->buffer_limit < (tl - (e-s)))
2645 strl = 0;
2646 else
2647 strl = min(strl, es->buffer_limit - (tl - (e-s)));
2648 }
2649
2650 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2651 return;
2652
2653 if (e != s) {
2654 /* there is something to be deleted */
2655 TRACE("deleting stuff.\n");
2656 bufl = e - s;
2657 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
2658 if (!buf) return;
2659 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
2660 buf[bufl] = 0; /* ensure 0 termination */
2661 /* now delete */
2662 strcpyW(es->text + s, es->text + e);
2663 text_buffer_changed(es);
2664 }
2665 if (strl) {
2666 /* there is an insertion */
2667 tl = get_text_length(es);
2668 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));
2669 for (p = es->text + tl ; p >= es->text + s ; p--)
2670 p[strl] = p[0];
2671 for (i = 0 , p = es->text + s ; i < strl ; i++)
2672 p[i] = lpsz_replace[i];
2673 if(es->style & ES_UPPERCASE)
2674 CharUpperBuffW(p, strl);
2675 else if(es->style & ES_LOWERCASE)
2676 CharLowerBuffW(p, strl);
2677 text_buffer_changed(es);
2678 }
2679 if (es->style & ES_MULTILINE)
2680 {
2681 INT st = min(es->selection_start, es->selection_end);
2682 INT vlc = get_vertical_line_count(es);
2683
2684 hrgn = CreateRectRgn(0, 0, 0, 0);
2685 EDIT_BuildLineDefs_ML(es, st, st + strl,
2686 strl - abs(es->selection_end - es->selection_start), hrgn);
2687 /* if text is too long undo all changes */
2688 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
2689 if (strl)
2690 strcpyW(es->text + e, es->text + e + strl);
2691 if (e != s)
2692 for (i = 0 , p = es->text ; i < e - s ; i++)
2693 p[i + s] = buf[i];
2694 text_buffer_changed(es);
2695 EDIT_BuildLineDefs_ML(es, s, e,
2696 abs(es->selection_end - es->selection_start) - strl, hrgn);
2697 strl = 0;
2698 e = s;
2699 hrgn = CreateRectRgn(0, 0, 0, 0);
2700 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2701 }
2702 }
2703 else {
2704 INT fw = es->format_rect.right - es->format_rect.left;
2705 EDIT_InvalidateUniscribeData(es);
2706 EDIT_CalcLineWidth_SL(es);
2707 /* remove chars that don't fit */
2708 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
2709 while ((es->text_width > fw) && s + strl >= s) {
2710 strcpyW(es->text + s + strl - 1, es->text + s + strl);
2711 strl--;
2712 es->text_length = -1;
2713 EDIT_InvalidateUniscribeData(es);
2714 EDIT_CalcLineWidth_SL(es);
2715 }
2716 text_buffer_changed(es);
2717 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2718 }
2719 }
2720
2721 if (e != s) {
2722 if (can_undo) {
2723 utl = strlenW(es->undo_text);
2724 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2725 /* undo-buffer is extended to the right */
2726 EDIT_MakeUndoFit(es, utl + e - s);
2727 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
2728 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2729 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2730 /* undo-buffer is extended to the left */
2731 EDIT_MakeUndoFit(es, utl + e - s);
2732 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2733 p[e - s] = p[0];
2734 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2735 p[i] = buf[i];
2736 es->undo_position = s;
2737 } else {
2738 /* new undo-buffer */
2739 EDIT_MakeUndoFit(es, e - s);
2740 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
2741 es->undo_text[e - s] = 0; /* ensure 0 termination */
2742 es->undo_position = s;
2743 }
2744 /* any deletion makes the old insertion-undo invalid */
2745 es->undo_insert_count = 0;
2746 } else
2747 EDIT_EM_EmptyUndoBuffer(es);
2748 }
2749 if (strl) {
2750 if (can_undo) {
2751 if ((s == es->undo_position) ||
2752 ((es->undo_insert_count) &&
2753 (s == es->undo_position + es->undo_insert_count)))
2754 /*
2755 * insertion is new and at delete position or
2756 * an extension to either left or right
2757 */
2758 es->undo_insert_count += strl;
2759 else {
2760 /* new insertion undo */
2761 es->undo_position = s;
2762 es->undo_insert_count = strl;
2763 /* new insertion makes old delete-buffer invalid */
2764 *es->undo_text = '\0';
2765 }
2766 } else
2767 EDIT_EM_EmptyUndoBuffer(es);
2768 }
2769
2770 HeapFree(GetProcessHeap(), 0, buf);
2771
2772 s += strl;
2773
2774 /* If text has been deleted and we're right or center aligned then scroll rightward */
2775 if (es->style & (ES_RIGHT | ES_CENTER))
2776 {
2777 INT delta = strl - abs(es->selection_end - es->selection_start);
2778
2779 if (delta < 0 && es->x_offset)
2780 {
2781 if (abs(delta) > es->x_offset)
2782 es->x_offset = 0;
2783 else
2784 es->x_offset += delta;
2785 }
2786 }
2787
2788 EDIT_EM_SetSel(es, s, s, FALSE);
2789 es->flags |= EF_MODIFIED;
2790 if (send_update) es->flags |= EF_UPDATE;
2791 if (hrgn)
2792 {
2793 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2794 DeleteObject(hrgn);
2795 }
2796 else
2797 EDIT_UpdateText(es, NULL, TRUE);
2798
2799 EDIT_EM_ScrollCaret(es);
2800
2801 /* force scroll info update */
2802 EDIT_UpdateScrollInfo(es);
2803
2804
2805 if(send_update || (es->flags & EF_UPDATE))
2806 {
2807 es->flags &= ~EF_UPDATE;
2808 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2809 }
2810 EDIT_InvalidateUniscribeData(es);
2811 }
2812
2813
2814 /*********************************************************************
2815 *
2816 * EM_SETHANDLE
2817 *
2818 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2819 *
2820 */
2821 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
2822 {
2823 if (!(es->style & ES_MULTILINE))
2824 return;
2825
2826 if (!hloc) {
2827 WARN("called with NULL handle\n");
2828 return;
2829 }
2830
2831 EDIT_UnlockBuffer(es, TRUE);
2832
2833 if(es->is_unicode)
2834 {
2835 if(es->hloc32A)
2836 {
2837 LocalFree(es->hloc32A);
2838 es->hloc32A = NULL;
2839 }
2840 es->hloc32W = hloc;
2841 }
2842 else
2843 {
2844 INT countW, countA;
2845 HLOCAL hloc32W_new;
2846 WCHAR *textW;
2847 CHAR *textA;
2848
2849 countA = LocalSize(hloc);
2850 textA = LocalLock(hloc);
2851 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
2852 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
2853 {
2854 ERR("Could not allocate new unicode buffer\n");
2855 return;
2856 }
2857 textW = LocalLock(hloc32W_new);
2858 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
2859 LocalUnlock(hloc32W_new);
2860 LocalUnlock(hloc);
2861
2862 if(es->hloc32W)
2863 LocalFree(es->hloc32W);
2864
2865 es->hloc32W = hloc32W_new;
2866 es->hloc32A = hloc;
2867 }
2868
2869 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
2870
2871 /* The text buffer handle belongs to the control */
2872 es->hlocapp = NULL;
2873
2874 EDIT_LockBuffer(es);
2875 text_buffer_changed(es);
2876
2877 es->x_offset = es->y_offset = 0;
2878 es->selection_start = es->selection_end = 0;
2879 EDIT_EM_EmptyUndoBuffer(es);
2880 es->flags &= ~EF_MODIFIED;
2881 es->flags &= ~EF_UPDATE;
2882 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2883 EDIT_UpdateText(es, NULL, TRUE);
2884 EDIT_EM_ScrollCaret(es);
2885 /* force scroll info update */
2886 EDIT_UpdateScrollInfo(es);
2887 }
2888
2889
2890 /*********************************************************************
2891 *
2892 * EM_SETLIMITTEXT
2893 *
2894 * NOTE: this version currently implements WinNT limits
2895 *
2896 */
2897 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
2898 {
2899 if (!limit) limit = ~0u;
2900 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
2901 es->buffer_limit = limit;
2902 }
2903
2904
2905 /*********************************************************************
2906 *
2907 * EM_SETMARGINS
2908 *
2909 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2910 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
2911 * margin according to the textmetrics of the current font.
2912 *
2913 * When EC_USEFONTINFO is used in the non_cjk case the margins only
2914 * change if the edit control is equal to or larger than a certain
2915 * size. Though there is an exception for the empty client rect case
2916 * with small font sizes.
2917 */
2918 static BOOL is_cjk(UINT charset)
2919 {
2920 switch(charset)
2921 {
2922 case SHIFTJIS_CHARSET:
2923 case HANGUL_CHARSET:
2924 case GB2312_CHARSET:
2925 case CHINESEBIG5_CHARSET:
2926 return TRUE;
2927 }
2928 /* HANGUL_CHARSET is strange, though treated as CJK by Win 8, it is
2929 * not by other versions including Win 10. */
2930 return FALSE;
2931 }
2932
2933 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
2934 WORD left, WORD right, BOOL repaint)
2935 {
2936 TEXTMETRICW tm;
2937 INT default_left_margin = 0; /* in pixels */
2938 INT default_right_margin = 0; /* in pixels */
2939
2940 /* Set the default margins depending on the font */
2941 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
2942 HDC dc = GetDC(es->hwndSelf);
2943 HFONT old_font = SelectObject(dc, es->font);
2944 LONG width = GdiGetCharDimensions(dc, &tm, NULL);
2945 RECT rc;
2946
2947 /* The default margins are only non zero for TrueType or Vector fonts */
2948 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
2949 if (!is_cjk(tm.tmCharSet)) {
2950 default_left_margin = width / 2;
2951 default_right_margin = width / 2;
2952
2953 GetClientRect(es->hwndSelf, &rc);
2954 if (rc.right - rc.left < (width / 2 + width) * 2 &&
2955 (width >= 28 || !IsRectEmpty(&rc)) ) {
2956 default_left_margin = es->left_margin;
2957 default_right_margin = es->right_margin;
2958 }
2959 } else {
2960 /* FIXME: figure out the CJK values. They are not affected by the client rect. */
2961 default_left_margin = width / 2;
2962 default_right_margin = width / 2;
2963 }
2964 }
2965 SelectObject(dc, old_font);
2966 ReleaseDC(es->hwndSelf, dc);
2967 }
2968
2969 if (action & EC_LEFTMARGIN) {
2970 es->format_rect.left -= es->left_margin;
2971 if (left != EC_USEFONTINFO)
2972 es->left_margin = left;
2973 else
2974 es->left_margin = default_left_margin;
2975 es->format_rect.left += es->left_margin;
2976 }
2977
2978 if (action & EC_RIGHTMARGIN) {
2979 es->format_rect.right += es->right_margin;
2980 if (right != EC_USEFONTINFO)
2981 es->right_margin = right;
2982 else
2983 es->right_margin = default_right_margin;
2984 es->format_rect.right -= es->right_margin;
2985 }
2986
2987 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
2988 EDIT_AdjustFormatRect(es);
2989 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
2990 }
2991
2992 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
2993 }
2994
2995
2996 /*********************************************************************
2997 *
2998 * EM_SETPASSWORDCHAR
2999 *
3000 */
3001 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3002 {
3003 LONG style;
3004
3005 if (es->style & ES_MULTILINE)
3006 return;
3007
3008 if (es->password_char == c)
3009 return;
3010
3011 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3012 es->password_char = c;
3013 if (c) {
3014 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3015 es->style |= ES_PASSWORD;
3016 } else {
3017 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3018 es->style &= ~ES_PASSWORD;
3019 }
3020 EDIT_InvalidateUniscribeData(es);
3021 EDIT_UpdateText(es, NULL, TRUE);
3022 }
3023
3024
3025 /*********************************************************************
3026 *
3027 * EM_SETTABSTOPS
3028 *
3029 */
3030 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3031 {
3032 if (!(es->style & ES_MULTILINE))
3033 return FALSE;
3034 HeapFree(GetProcessHeap(), 0, es->tabs);
3035 es->tabs_count = count;
3036 if (!count)
3037 es->tabs = NULL;
3038 else {
3039 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3040 #ifdef __REACTOS__
3041 /* ReactOS r33503 */
3042 if (es->tabs == NULL)
3043 {
3044 es->tabs_count = 0;
3045 return FALSE;
3046 }
3047 #endif
3048 memcpy(es->tabs, tabs, count * sizeof(INT));
3049 }
3050 EDIT_InvalidateUniscribeData(es);
3051 return TRUE;
3052 }
3053
3054
3055 /*********************************************************************
3056 *
3057 * EM_SETWORDBREAKPROC
3058 *
3059 */
3060 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3061 {
3062 if (es->word_break_proc == wbp)
3063 return;
3064
3065 es->word_break_proc = wbp;
3066
3067 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3068 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3069 EDIT_UpdateText(es, NULL, TRUE);
3070 }
3071 }
3072
3073
3074 /*********************************************************************
3075 *
3076 * EM_UNDO / WM_UNDO
3077 *
3078 */
3079 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3080 {
3081 INT ulength;
3082 LPWSTR utext;
3083
3084 /* As per MSDN spec, for a single-line edit control,
3085 the return value is always TRUE */
3086 if( es->style & ES_READONLY )
3087 return !(es->style & ES_MULTILINE);
3088
3089 ulength = strlenW(es->undo_text);
3090
3091 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3092 #ifdef __REACTOS__
3093 /* ReactOS r33503 */
3094 if (utext == NULL)
3095 return FALSE;
3096 #endif
3097
3098 strcpyW(utext, es->undo_text);
3099
3100 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3101 es->undo_insert_count, debugstr_w(utext));
3102
3103 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3104 EDIT_EM_EmptyUndoBuffer(es);
3105 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3106 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3107 /* send the notification after the selection start and end are set */
3108 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3109 EDIT_EM_ScrollCaret(es);
3110 HeapFree(GetProcessHeap(), 0, utext);
3111
3112 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3113 es->undo_insert_count, debugstr_w(es->undo_text));
3114 return TRUE;
3115 }
3116
3117
3118 /* Helper function for WM_CHAR
3119 *
3120 * According to an MSDN blog article titled "Just because you're a control
3121 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3122 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3123 * a dialog box or not.
3124 */
3125 static inline BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3126 {
3127 return (es->flags & EF_DIALOGMODE);
3128 }
3129
3130
3131 /*********************************************************************
3132 *
3133 * WM_PASTE
3134 *
3135 */
3136 static void EDIT_WM_Paste(EDITSTATE *es)
3137 {
3138 HGLOBAL hsrc;
3139 LPWSTR src;
3140
3141 /* Protect read-only edit control from modification */
3142 if(es->style & ES_READONLY)
3143 return;
3144
3145 OpenClipboard(es->hwndSelf);
3146 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
3147 src = GlobalLock(hsrc);
3148 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
3149 GlobalUnlock(hsrc);
3150 }
3151 else if (es->style & ES_PASSWORD) {
3152 /* clear selected text in password edit box even with empty clipboard */
3153 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
3154 }
3155 CloseClipboard();
3156 }
3157
3158
3159 /*********************************************************************
3160 *
3161 * WM_COPY
3162 *
3163 */
3164 static void EDIT_WM_Copy(EDITSTATE *es)
3165 {
3166 INT s = min(es->selection_start, es->selection_end);
3167 INT e = max(es->selection_start, es->selection_end);
3168 HGLOBAL hdst;
3169 LPWSTR dst;
3170 DWORD len;
3171
3172 if (e == s) return;
3173
3174 len = e - s;
3175 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
3176 dst = GlobalLock(hdst);
3177 memcpy(dst, es->text + s, len * sizeof(WCHAR));
3178 dst[len] = 0; /* ensure 0 termination */
3179 TRACE("%s\n", debugstr_w(dst));
3180 GlobalUnlock(hdst);
3181 OpenClipboard(es->hwndSelf);
3182 EmptyClipboard();
3183 SetClipboardData(CF_UNICODETEXT, hdst);
3184 CloseClipboard();
3185 }
3186
3187
3188 /*********************************************************************
3189 *
3190 * WM_CLEAR
3191 *
3192 */
3193 static inline void EDIT_WM_Clear(EDITSTATE *es)
3194 {
3195 /* Protect read-only edit control from modification */
3196 if(es->style & ES_READONLY)
3197 return;
3198
3199 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
3200 }
3201
3202
3203 /*********************************************************************
3204 *
3205 * WM_CUT
3206 *
3207 */
3208 static inline void EDIT_WM_Cut(EDITSTATE *es)
3209 {
3210 EDIT_WM_Copy(es);
3211 EDIT_WM_Clear(es);
3212 }
3213
3214
3215 /*********************************************************************
3216 *
3217 * WM_CHAR
3218 *
3219 */
3220 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3221 {
3222 BOOL control;
3223
3224 control = GetKeyState(VK_CONTROL) & 0x8000;
3225
3226 switch (c) {
3227 case '\r':
3228 /* If it's not a multiline edit box, it would be ignored below.
3229 * For multiline edit without ES_WANTRETURN, we have to make a
3230 * special case.
3231 */
3232 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3233 if (EDIT_IsInsideDialog(es))
3234 break;
3235 case '\n':
3236 if (es->style & ES_MULTILINE) {
3237 if (es->style & ES_READONLY) {
3238 EDIT_MoveHome(es, FALSE, FALSE);
3239 EDIT_MoveDown_ML(es, FALSE);
3240 } else {
3241 static const WCHAR cr_lfW[] = {'\r','\n',0};
3242 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3243 }
3244 }
3245 break;
3246 case '\t':
3247 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3248 {
3249 static const WCHAR tabW[] = {'\t',0};
3250 if (EDIT_IsInsideDialog(es))
3251 break;
3252 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3253 }
3254 break;
3255 case VK_BACK:
3256 if (!(es->style & ES_READONLY) && !control) {
3257 if (es->selection_start != es->selection_end)
3258 EDIT_WM_Clear(es);
3259 else {
3260 /* delete character left of caret */
3261 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3262 EDIT_MoveBackward(es, TRUE);
3263 EDIT_WM_Clear(es);
3264 }
3265 }
3266 break;
3267 case 0x03: /* ^C */
3268 if (!(es->style & ES_PASSWORD))
3269 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3270 break;
3271 case 0x16: /* ^V */
3272 if (!(es->style & ES_READONLY))
3273 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3274 break;
3275 case 0x18: /* ^X */
3276 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
3277 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3278 break;
3279 case 0x1A: /* ^Z */
3280 if (!(es->style & ES_READONLY))
3281 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3282 break;
3283
3284 default:
3285 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3286 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3287 break;
3288
3289 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3290 WCHAR str[2];
3291 str[0] = c;
3292 str[1] = '\0';
3293 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3294 }
3295 break;
3296 }
3297 return 1;
3298 }
3299
3300
3301 /*********************************************************************
3302 *
3303 * EDIT_ContextMenuCommand
3304 *
3305 */
3306 static void EDIT_ContextMenuCommand(EDITSTATE *es, UINT id)
3307 {
3308 switch (id) {
3309 case EM_UNDO:
3310 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3311 break;
3312 case WM_CUT:
3313 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3314 break;
3315 case WM_COPY:
3316 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3317 break;
3318 case WM_PASTE:
3319 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3320 break;
3321 case WM_CLEAR:
3322 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
3323 break;
3324 case EM_SETSEL:
3325 SendMessageW(es->hwndSelf, EM_SETSEL, 0, -1);
3326 break;
3327 default:
3328 ERR("unknown menu item, please report\n");
3329 break;
3330 }
3331 }
3332
3333
3334 /*********************************************************************
3335 *
3336 * WM_CONTEXTMENU
3337 *
3338 * Note: the resource files resource/sysres_??.rc cannot define a
3339 * single popup menu. Hence we use a (dummy) menubar
3340 * containing the single popup menu as its first item.
3341 *
3342 * FIXME: the message identifiers have been chosen arbitrarily,
3343 * hence we use MF_BYPOSITION.
3344 * We might as well use the "real" values (anybody knows ?)
3345 * The menu definition is in resources/sysres_??.rc.
3346 * Once these are OK, we better use MF_BYCOMMAND here
3347 * (as we do in EDIT_WM_Command()).
3348 *
3349 */
3350 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3351 {
3352 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3353 HMENU popup = GetSubMenu(menu, 0);
3354 UINT start = es->selection_start;
3355 UINT end = es->selection_end;
3356 UINT cmd;
3357
3358 ORDER_UINT(start, end);
3359
3360 /* undo */
3361 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3362 /* cut */
3363 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3364 /* copy */
3365 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3366 /* paste */
3367 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3368 /* delete */
3369 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3370 /* select all */
3371 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
3372
3373 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
3374 {
3375 RECT rc;
3376 /* Windows places the menu at the edit's center in this case */
3377 #ifdef __REACTOS__
3378 /* ReactOS r55202 */
3379 GetClientRect(es->hwndSelf, &rc);
3380 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
3381 #else
3382 WIN_GetRectangles( es->hwndSelf, COORDS_SCREEN, NULL, &rc );
3383 #endif
3384 x = rc.left + (rc.right - rc.left) / 2;
3385 y = rc.top + (rc.bottom - rc.top) / 2;
3386 }
3387
3388 if (!(es->flags & EF_FOCUSED))
3389 SetFocus(es->hwndSelf);
3390
3391 cmd = TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD | TPM_NONOTIFY,
3392 x, y, 0, es->hwndSelf, NULL);
3393
3394 if (cmd)
3395 EDIT_ContextMenuCommand(es, cmd);
3396
3397 DestroyMenu(menu);
3398 }
3399
3400
3401 /*********************************************************************
3402 *
3403 * WM_GETTEXT
3404 *
3405 */
3406 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
3407 {
3408 if(!count) return 0;
3409
3410 if(unicode)
3411 {
3412 lstrcpynW(dst, es->text, count);
3413 return strlenW(dst);
3414 }
3415 else
3416 {
3417 LPSTR textA = (LPSTR)dst;
3418 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3419 textA[count - 1] = 0; /* ensure 0 termination */
3420 return strlen(textA);
3421 }
3422 }
3423
3424 /*********************************************************************
3425 *
3426 * EDIT_CheckCombo
3427 *
3428 */
3429 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3430 {
3431 HWND hLBox = es->hwndListBox;
3432 HWND hCombo;
3433 BOOL bDropped;
3434 int nEUI;
3435
3436 if (!hLBox)
3437 return FALSE;
3438
3439 hCombo = GetParent(es->hwndSelf);
3440 bDropped = TRUE;
3441 nEUI = 0;
3442
3443 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3444
3445 if (key == VK_UP || key == VK_DOWN)
3446 {
3447 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3448 nEUI = 1;
3449
3450 if (msg == WM_KEYDOWN || nEUI)
3451 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3452 }
3453
3454 switch (msg)
3455 {
3456 case WM_KEYDOWN:
3457 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3458 {
3459 /* make sure ComboLBox pops up */
3460 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
3461 key = VK_F4;
3462 nEUI = 2;
3463 }
3464
3465 SendMessageW(hLBox, WM_KEYDOWN, key, 0);
3466 break;
3467
3468 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3469 if (nEUI)
3470 SendMessageW(hCombo, CB_SHOWDROPDOWN, !bDropped, 0);
3471 else
3472 SendMessageW(hLBox, WM_KEYDOWN, VK_F4, 0);
3473 break;
3474 }
3475
3476 if(nEUI == 2)
3477 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
3478
3479 return TRUE;
3480 }
3481
3482
3483 /*********************************************************************
3484 *
3485 * WM_KEYDOWN
3486 *
3487 * Handling of special keys that don't produce a WM_CHAR
3488 * (i.e. non-printable keys) & Backspace & Delete
3489 *
3490 */
3491 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
3492 {
3493 BOOL shift;
3494 BOOL control;
3495
3496 if (GetKeyState(VK_MENU) & 0x8000)
3497 return 0;
3498
3499 shift = GetKeyState(VK_SHIFT) & 0x8000;
3500 control = GetKeyState(VK_CONTROL) & 0x8000;
3501
3502 switch (key) {
3503 case VK_F4:
3504 case VK_UP:
3505 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
3506 break;
3507
3508 /* fall through */
3509 case VK_LEFT:
3510 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3511 EDIT_MoveUp_ML(es, shift);
3512 else
3513 if (control)
3514 EDIT_MoveWordBackward(es, shift);
3515 else
3516 EDIT_MoveBackward(es, shift);
3517 break;
3518 case VK_DOWN:
3519 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
3520 break;
3521 /* fall through */
3522 case VK_RIGHT:
3523 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3524 EDIT_MoveDown_ML(es, shift);
3525 else if (control)
3526 EDIT_MoveWordForward(es, shift);
3527 else
3528 EDIT_MoveForward(es, shift);
3529 break;
3530 case VK_HOME:
3531 EDIT_MoveHome(es, shift, control);
3532 break;
3533 case VK_END:
3534 EDIT_MoveEnd(es, shift, control);
3535 break;
3536 case VK_PRIOR:
3537 if (es->style & ES_MULTILINE)
3538 EDIT_MovePageUp_ML(es, shift);
3539 else
3540 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3541 break;
3542 case VK_NEXT:
3543 if (es->style & ES_MULTILINE)
3544 EDIT_MovePageDown_ML(es, shift);
3545 else
3546 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3547 break;
3548 case VK_DELETE:
3549 if (!(es->style & ES_READONLY) && !(shift && control)) {
3550 if (es->selection_start != es->selection_end) {
3551 if (shift)
3552 EDIT_WM_Cut(es);
3553 else
3554 EDIT_WM_Clear(es);
3555 } else {
3556 if (shift) {
3557 /* delete character left of caret */
3558 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3559 EDIT_MoveBackward(es, TRUE);
3560 EDIT_WM_Clear(es);
3561 } else if (control) {
3562 /* delete to end of line */
3563 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3564 EDIT_MoveEnd(es, TRUE, FALSE);
3565 EDIT_WM_Clear(es);
3566 } else {
3567 /* delete character right of caret */
3568 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3569 EDIT_MoveForward(es, TRUE);
3570 EDIT_WM_Clear(es);
3571 }
3572 }
3573 }
3574 break;
3575 case VK_INSERT:
3576 if (shift) {
3577 if (!(es->style & ES_READONLY))
3578 EDIT_WM_Paste(es);
3579 } else if (control)
3580 EDIT_WM_Copy(es);
3581 break;
3582 case VK_RETURN:
3583 /* If the edit doesn't want the return send a message to the default object */
3584 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
3585 {
3586 DWORD dw;
3587
3588 if (!EDIT_IsInsideDialog(es)) break;
3589 if (control) break;
3590 dw = SendMessageW(es->hwndParent, DM_GETDEFID, 0, 0);
3591 if (HIWORD(dw) == DC_HASDEFID)
3592 {
3593 HWND hwDefCtrl = GetDlgItem(es->hwndParent, LOWORD(dw));
3594 if (hwDefCtrl)
3595 {
3596 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, TRUE);
3597 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
3598 }
3599 }
3600 }
3601 break;
3602 case VK_ESCAPE:
3603 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3604 PostMessageW(es->hwndParent, WM_CLOSE, 0, 0);
3605 break;
3606 case VK_TAB:
3607 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3608 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
3609 break;
3610 #ifdef __REACTOS__
3611 /* ReactOS CORE-1419 */
3612 case VK_BACK:
3613 if (control)
3614 {
3615 FIXME("Ctrl+Backspace\n");
3616 }
3617 break;
3618 #endif
3619 }
3620 return TRUE;
3621 }
3622
3623
3624 /*********************************************************************
3625 *
3626 * WM_KILLFOCUS
3627 *
3628 */
3629 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
3630 {
3631 es->flags &= ~EF_FOCUSED;
3632 DestroyCaret();
3633 if(!(es->style & ES_NOHIDESEL))
3634 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3635 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
3636 /* throw away left over scroll when we lose focus */
3637 es->wheelDeltaRemainder = 0;
3638 return 0;
3639 }
3640
3641
3642 /*********************************************************************
3643 *
3644 * WM_LBUTTONDBLCLK
3645 *
3646 * The caret position has been set on the WM_LBUTTONDOWN message
3647 *
3648 */
3649 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
3650 {
3651 INT s;
3652 INT e = es->selection_end;
3653 INT l;
3654 INT li;
3655 INT ll;
3656
3657 es->bCaptureState = TRUE;
3658 SetCapture(es->hwndSelf);
3659
3660 l = EDIT_EM_LineFromChar(es, e);
3661 li = EDIT_EM_LineIndex(es, l);
3662 ll = EDIT_EM_LineLength(es, e);
3663 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
3664 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
3665 EDIT_EM_SetSel(es, s, e, FALSE);
3666 EDIT_EM_ScrollCaret(es);
3667 es->region_posx = es->region_posy = 0;
3668 SetTimer(es->hwndSelf, 0, 100, NULL);
3669 return 0;
3670 }
3671
3672
3673 /*********************************************************************
3674 *
3675 * WM_LBUTTONDOWN
3676 *
3677 */
3678 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
3679 {
3680 INT e;
3681 BOOL after_wrap;
3682
3683 es->bCaptureState = TRUE;
3684 SetCapture(es->hwndSelf);
3685 EDIT_ConfinePoint(es, &x, &y);
3686 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3687 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3688 EDIT_EM_ScrollCaret(es);
3689 es->region_posx = es->region_posy = 0;
3690 SetTimer(es->hwndSelf, 0, 100, NULL);
3691
3692 if (!(es->flags & EF_FOCUSED))
3693 SetFocus(es->hwndSelf);
3694
3695 return 0;
3696 }
3697
3698
3699 /*********************************************************************
3700 *
3701 * WM_LBUTTONUP
3702 *
3703 */
3704 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
3705 {
3706 if (es->bCaptureState) {
3707 KillTimer(es->hwndSelf, 0);
3708 if (GetCapture() == es->hwndSelf) ReleaseCapture();
3709 }
3710 es->bCaptureState = FALSE;
3711 return 0;
3712 }
3713
3714
3715 /*********************************************************************
3716 *
3717 * WM_MBUTTONDOWN
3718 *
3719 */
3720 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
3721 {
3722 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3723 return 0;
3724 }
3725
3726
3727 /*********************************************************************
3728 *
3729 * WM_MOUSEMOVE
3730 *
3731 */
3732 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
3733 {
3734 INT e;
3735 BOOL after_wrap;
3736 INT prex, prey;
3737
3738 /* If the mouse has been captured by process other than the edit control itself,
3739 * the windows edit controls will not select the strings with mouse move.
3740 */
3741 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
3742 return 0;
3743
3744 /*
3745 * FIXME: gotta do some scrolling if outside client
3746 * area. Maybe reset the timer ?
3747 */
3748 prex = x; prey = y;
3749 EDIT_ConfinePoint(es, &x, &y);
3750 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3751 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3752 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3753 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
3754 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
3755 return 0;
3756 }
3757
3758
3759 /*********************************************************************
3760 *
3761 * WM_PAINT
3762 *
3763 */
3764 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
3765 {
3766 PAINTSTRUCT ps;
3767 INT i;
3768 HDC dc;
3769 HFONT old_font = 0;
3770 RECT rc;
3771 RECT rcClient;
3772 RECT rcLine;
3773 RECT rcRgn;
3774 HBRUSH brush;
3775 HBRUSH old_brush;
3776 INT bw, bh;
3777 BOOL rev = es->bEnableState &&
3778 ((es->flags & EF_FOCUSED) ||
3779 (es->style & ES_NOHIDESEL));
3780 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
3781
3782 /* The dc we use for calculating may not be the one we paint into.
3783 This is the safest action. */
3784 EDIT_InvalidateUniscribeData(es);
3785 GetClientRect(es->hwndSelf, &rcClient);
3786
3787 /* get the background brush */
3788 brush = EDIT_NotifyCtlColor(es, dc);
3789
3790 /* paint the border and the background */
3791 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
3792
3793 if(es->style & WS_BORDER) {
3794 bw = GetSystemMetrics(SM_CXBORDER);
3795 bh = GetSystemMetrics(SM_CYBORDER);
3796 rc = rcClient;
3797 if(es->style & ES_MULTILINE) {
3798 if(es->style & WS_HSCROLL) rc.bottom+=bh;
3799 if(es->style & WS_VSCROLL) rc.right+=bw;
3800 }
3801
3802 /* Draw the frame. Same code as in nonclient.c */
3803 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
3804 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
3805 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
3806 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
3807 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
3808 SelectObject(dc, old_brush);
3809
3810 /* Keep the border clean */
3811 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
3812 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
3813 }
3814
3815 GetClipBox(dc, &rc);
3816 FillRect(dc, &rc, brush);
3817
3818 IntersectClipRect(dc, es->format_rect.left,
3819 es->format_rect.top,
3820 es->format_rect.right,
3821 es->format_rect.bottom);
3822 if (es->style & ES_MULTILINE) {
3823 rc = rcClient;
3824 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3825 }
3826 if (es->font)
3827 old_font = SelectObject(dc, es->font);
3828
3829 if (!es->bEnableState)
3830 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
3831 GetClipBox(dc, &rcRgn);
3832 if (es->style & ES_MULTILINE) {
3833 INT vlc = get_vertical_line_count(es);
3834 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3835 EDIT_UpdateUniscribeData(es, dc, i);
3836 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
3837 if (IntersectRect(&rc, &rcRgn, &rcLine))
3838 EDIT_PaintLine(es, dc, i, rev);
3839 }
3840 } else {
3841 EDIT_UpdateUniscribeData(es, dc, 0);
3842 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
3843 if (IntersectRect(&rc, &rcRgn, &rcLine))
3844 EDIT_PaintLine(es, dc, 0, rev);
3845 }
3846 if (es->font)
3847 SelectObject(dc, old_font);
3848
3849 if (!hdc)
3850 EndPaint(es->hwndSelf, &ps);
3851 }
3852
3853
3854 /*********************************************************************
3855 *
3856 * WM_SETFOCUS
3857 *
3858 */
3859 static void EDIT_WM_SetFocus(EDITSTATE *es)
3860 {
3861 es->flags |= EF_FOCUSED;
3862
3863 if (!(es->style & ES_NOHIDESEL))
3864 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3865
3866 /* single line edit updates itself */
3867 if (IsWindowVisible(es->hwndSelf) && !(es->style & ES_MULTILINE))
3868 {
3869 HDC hdc = GetDC(es->hwndSelf);
3870 EDIT_WM_Paint(es, hdc);
3871 ReleaseDC(es->hwndSelf, hdc);
3872 }
3873
3874 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3875 EDIT_SetCaretPos(es, es->selection_end,
3876 es->flags & EF_AFTER_WRAP);
3877 ShowCaret(es->hwndSelf);
3878 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
3879 }
3880
3881
3882 /*********************************************************************
3883 *
3884 * WM_SETFONT
3885 *
3886 * With Win95 look the margins are set to default font value unless
3887 * the system font (font == 0) is being set, in which case they are left
3888 * unchanged.
3889 *
3890 */
3891 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
3892 {
3893 TEXTMETRICW tm;
3894 HDC dc;
3895 HFONT old_font = 0;
3896 RECT clientRect;
3897
3898 es->font = font;
3899 EDIT_InvalidateUniscribeData(es);
3900 dc = GetDC(es->hwndSelf);
3901 if (font)
3902 old_font = SelectObject(dc, font);
3903 GetTextMetricsW(dc, &tm);
3904 es->line_height = tm.tmHeight;
3905 es->char_width = tm.tmAveCharWidth;
3906 if (font)
3907 SelectObject(dc, old_font);
3908 ReleaseDC(es->hwndSelf, dc);
3909
3910 /* Reset the format rect and the margins */
3911 GetClientRect(es->hwndSelf, &clientRect);
3912 EDIT_SetRectNP(es, &clientRect);
3913 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3914 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
3915
3916 if (es->style & ES_MULTILINE)
3917 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3918 else
3919 EDIT_CalcLineWidth_SL(es);
3920
3921 if (redraw)
3922 EDIT_UpdateText(es, NULL, TRUE);
3923 if (es->flags & EF_FOCUSED) {
3924 DestroyCaret();
3925 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3926 EDIT_SetCaretPos(es, es->selection_end,
3927 es->flags & EF_AFTER_WRAP);
3928 ShowCaret(es->hwndSelf);
3929 }
3930 }
3931
3932
3933 /*********************************************************************
3934 *
3935 * WM_SETTEXT
3936 *
3937 * NOTES
3938 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3939 * The modified flag is reset. No notifications are sent.
3940 *
3941 * For single-line controls, reception of WM_SETTEXT triggers:
3942 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3943 *
3944 */
3945 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
3946 {
3947 LPWSTR textW = NULL;
3948 if (!unicode && text)
3949 {
3950 LPCSTR textA = (LPCSTR)text;
3951 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
3952 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
3953 if (textW)
3954 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
3955 text = textW;
3956 }
3957
3958 if (es->flags & EF_UPDATE)
3959 /* fixed this bug once; complain if we see it about to happen again. */
3960 ERR("SetSel may generate UPDATE message whose handler may reset "
3961 "selection.\n");
3962
3963 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3964 if (text)
3965 {
3966 TRACE("%s\n", debugstr_w(text));
3967 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
3968 if(!unicode)
3969 HeapFree(GetProcessHeap(), 0, textW);
3970 }
3971 else
3972 {
3973 TRACE("<NULL>\n");
3974 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
3975 }
3976 es->x_offset = 0;
3977 es->flags &= ~EF_MODIFIED;
3978 EDIT_EM_SetSel(es, 0, 0, FALSE);
3979
3980 /* Send the notification after the selection start and end have been set
3981 * edit control doesn't send notification on WM_SETTEXT
3982 * if it is multiline, or it is part of combobox
3983 */
3984 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
3985 {
3986 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
3987 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3988 }
3989 EDIT_EM_ScrollCaret(es);
3990 EDIT_UpdateScrollInfo(es);
3991 EDIT_InvalidateUniscribeData(es);
3992 }
3993
3994
3995 /*********************************************************************
3996 *
3997 * WM_SIZE
3998 *
3999 */
4000 static void EDIT_WM_Size(EDITSTATE *es, UINT action)
4001 {
4002 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4003 RECT rc;
4004 GetClientRect(es->hwndSelf, &rc);
4005 EDIT_SetRectNP(es, &rc);
4006 EDIT_UpdateText(es, NULL, TRUE);
4007 }
4008 }
4009
4010
4011 /*********************************************************************
4012 *
4013 * WM_STYLECHANGED
4014 *
4015 * This message is sent by SetWindowLong on having changed either the Style
4016 * or the extended style.
4017 *
4018 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4019 *
4020 * See also EDIT_WM_NCCreate
4021 *
4022 * It appears that the Windows version of the edit control allows the style
4023 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4024 * style variable which will generally be different. In this function we
4025 * update the internal style based on what changed in the externally visible
4026 * style.
4027 *
4028 * Much of this content as based upon the MSDN, especially:
4029 * Platform SDK Documentation -> User Interface Services ->
4030 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4031 * Edit Control Styles
4032 */
4033 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4034 {
4035 if (GWL_STYLE == which) {
4036 DWORD style_change_mask;
4037 DWORD new_style;
4038 /* Only a subset of changes can be applied after the control
4039 * has been created.
4040 */
4041 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4042 ES_NUMBER;
4043 if (es->style & ES_MULTILINE)
4044 style_change_mask |= ES_WANTRETURN;
4045
4046 new_style = style->styleNew & style_change_mask;
4047
4048 /* Number overrides lowercase overrides uppercase (at least it
4049 * does in Win95). However I'll bet that ES_NUMBER would be
4050 * invalid under Win 3.1.
4051 */
4052 if (new_style & ES_NUMBER) {
4053 ; /* do not override the ES_NUMBER */
4054 } else if (new_style & ES_LOWERCASE) {
4055 new_style &= ~ES_UPPERCASE;
4056 }
4057
4058 es->style = (es->style & ~style_change_mask) | new_style;
4059 } else if (GWL_EXSTYLE == which) {
4060 ; /* FIXME - what is needed here */
4061 } else {
4062 WARN ("Invalid style change %ld\n",which);
4063 }
4064
4065 return 0;
4066 }
4067
4068 /*********************************************************************
4069 *
4070 * WM_SYSKEYDOWN
4071 *
4072 */
4073 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4074 {
4075 if ((key == VK_BACK) && (key_data & 0x2000)) {
4076 if (EDIT_EM_CanUndo(es))
4077 EDIT_EM_Undo(es);
4078 return 0;
4079 } else if (key == VK_UP || key == VK_DOWN) {
4080 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4081 return 0;
4082 }
4083 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, key, key_data);
4084 }
4085
4086
4087 /*********************************************************************
4088 *
4089 * WM_TIMER
4090 *
4091 */
4092 static void EDIT_WM_Timer(EDITSTATE *es)
4093 {
4094 if (es->region_posx < 0) {
4095 EDIT_MoveBackward(es, TRUE);
4096 } else if (es->region_posx > 0) {
4097 EDIT_MoveForward(es, TRUE);
4098 }
4099 /*
4100 * FIXME: gotta do some vertical scrolling here, like
4101 * EDIT_EM_LineScroll(hwnd, 0, 1);
4102 */
4103 }
4104
4105 /*********************************************************************
4106 *
4107 * WM_HSCROLL
4108 *
4109 */
4110 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4111 {
4112 INT dx;
4113 INT fw;
4114
4115 if (!(es->style & ES_MULTILINE))
4116 return 0;
4117
4118 if (!(es->style & ES_AUTOHSCROLL))
4119 return 0;
4120
4121 dx = 0;
4122 fw = es->format_rect.right - es->format_rect.left;
4123 switch (action) {
4124 case SB_LINELEFT:
4125 TRACE("SB_LINELEFT\n");
4126 if (es->x_offset)
4127 dx = -es->char_width;
4128 break;
4129 case SB_LINERIGHT:
4130 TRACE("SB_LINERIGHT\n");
4131 if (es->x_offset < es->text_width)
4132 dx = es->char_width;
4133 break;
4134 case SB_PAGELEFT:
4135 TRACE("SB_PAGELEFT\n");
4136 if (es->x_offset)
4137 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4138 break;
4139 case SB_PAGERIGHT:
4140 TRACE("SB_PAGERIGHT\n");
4141 if (es->x_offset < es->text_width)
4142 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4143 break;
4144 case SB_LEFT:
4145 TRACE("SB_LEFT\n");
4146 if (es->x_offset)
4147 dx = -es->x_offset;
4148 break;
4149 case SB_RIGHT:
4150 TRACE("SB_RIGHT\n");
4151 if (es->x_offset < es->text_width)
4152 dx = es->text_width - es->x_offset;
4153 break;
4154 case SB_THUMBTRACK:
4155 TRACE("SB_THUMBTRACK %d\n", pos);
4156 es->flags |= EF_HSCROLL_TRACK;
4157 if(es->style & WS_HSCROLL)
4158 dx = pos - es->x_offset;
4159 else
4160 {
4161 INT fw, new_x;
4162 /* Sanity check */
4163 if(pos < 0 || pos > 100) return 0;
4164 /* Assume default scroll range 0-100 */
4165 fw = es->format_rect.right - es->format_rect.left;
4166 new_x = pos * (es->text_width - fw) / 100;
4167 dx = es->text_width ? (new_x - es->x_offset) : 0;
4168 }
4169 break;
4170 case SB_THUMBPOSITION:
4171 TRACE("SB_THUMBPOSITION %d\n", pos);
4172 es->flags &= ~EF_HSCROLL_TRACK;
4173 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4174 dx = pos - es->x_offset;
4175 else
4176 {
4177 INT fw, new_x;
4178 /* Sanity check */
4179 if(pos < 0 || pos > 100) return 0;
4180 /* Assume default scroll range 0-100 */
4181 fw = es->format_rect.right - es->format_rect.left;
4182 new_x = pos * (es->text_width - fw) / 100;
4183 dx = es->text_width ? (new_x - es->x_offset) : 0;
4184 }
4185 if (!dx) {
4186 /* force scroll info update */
4187 EDIT_UpdateScrollInfo(es);
4188 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4189 }
4190 break;
4191 case SB_ENDSCROLL:
4192 TRACE("SB_ENDSCROLL\n");
4193 break;
4194 /*
4195 * FIXME : the next two are undocumented !
4196 * Are we doing the right thing ?
4197 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4198 * although it's also a regular control message.
4199 */
4200 case EM_GETTHUMB: /* this one is used by NT notepad */
4201 {
4202 LRESULT ret;
4203 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4204 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4205 else
4206 {
4207 /* Assume default scroll range 0-100 */
4208 INT fw = es->format_rect.right - es->format_rect.left;
4209 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4210 }
4211 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4212 return ret;
4213 }
4214 case EM_LINESCROLL:
4215 TRACE("EM_LINESCROLL16\n");
4216 dx = pos;
4217 break;
4218
4219 default:
4220 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4221 action, action);
4222 return 0;
4223 }
4224 if (dx)
4225 {
4226 INT fw = es->format_rect.right - es->format_rect.left;
4227 /* check if we are going to move too far */
4228 if(es->x_offset + dx + fw > es->text_width)
4229 dx = es->text_width - fw - es->x_offset;
4230 if(dx)
4231 EDIT_EM_LineScroll_internal(es, dx, 0);
4232 }
4233 return 0;
4234 }
4235
4236
4237 /*********************************************************************
4238 *
4239 * WM_VSCROLL
4240 *
4241 */
4242 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4243 {
4244 INT dy;
4245
4246 if (!(es->style & ES_MULTILINE))
4247 return 0;
4248
4249 if (!(es->style & ES_AUTOVSCROLL))
4250 return 0;
4251
4252 dy = 0;
4253 switch (action) {
4254 case SB_LINEUP:
4255 case SB_LINEDOWN:
4256 case SB_PAGEUP:
4257 case SB_PAGEDOWN:
4258 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4259 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4260 (action == SB_PAGEUP ? "SB_PAGEUP" :
4261 "SB_PAGEDOWN"))));
4262 EDIT_EM_Scroll(es, action);
4263 return 0;
4264 case SB_TOP:
4265 TRACE("SB_TOP\n");
4266 dy = -es->y_offset;
4267 break;
4268 case SB_BOTTOM:
4269 TRACE("SB_BOTTOM\n");
4270 dy = es->line_count - 1 - es->y_offset;
4271 break;
4272 case SB_THUMBTRACK:
4273 TRACE("SB_THUMBTRACK %d\n", pos);
4274 es->flags |= EF_VSCROLL_TRACK;
4275 if(es->style & WS_VSCROLL)
4276 dy = pos - es->y_offset;
4277 else
4278 {
4279 /* Assume default scroll range 0-100 */
4280 INT vlc, new_y;
4281 /* Sanity check */
4282 if(pos < 0 || pos > 100) return 0;
4283 vlc = get_vertical_line_count(es);
4284 new_y = pos * (es->line_count - vlc) / 100;
4285 dy = es->line_count ? (new_y - es->y_offset) : 0;
4286 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4287 es->line_count, es->y_offset, pos, dy);
4288 }
4289 break;
4290 case SB_THUMBPOSITION:
4291 TRACE("SB_THUMBPOSITION %d\n", pos);
4292 es->flags &= ~EF_VSCROLL_TRACK;
4293 if(es->style & WS_VSCROLL)
4294 dy = pos - es->y_offset;
4295 else
4296 {
4297 /* Assume default scroll range 0-100 */
4298 INT vlc, new_y;
4299 /* Sanity check */
4300 if(pos < 0 || pos > 100) return 0;
4301 vlc = get_vertical_line_count(es);
4302 new_y = pos * (es->line_count - vlc) / 100;
4303 dy = es->line_count ? (new_y - es->y_offset) : 0;
4304 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4305 es->line_count, es->y_offset, pos, dy);
4306 }
4307 if (!dy)
4308 {
4309 /* force scroll info update */
4310 EDIT_UpdateScrollInfo(es);
4311 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
4312 }
4313 break;
4314 case SB_ENDSCROLL:
4315 TRACE("SB_ENDSCROLL\n");
4316 break;
4317 /*
4318 * FIXME : the next two are undocumented !
4319 * Are we doing the right thing ?
4320 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4321 * although it's also a regular control message.
4322 */
4323 case EM_GETTHUMB: /* this one is used by NT notepad */
4324 {
4325 LRESULT ret;
4326 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4327 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4328 else
4329 {
4330 /* Assume default scroll range 0-100 */
4331 INT vlc = get_vertical_line_count(es);
4332 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4333 }
4334 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4335 return ret;
4336 }
4337 case EM_LINESCROLL:
4338 TRACE("EM_LINESCROLL %d\n", pos);
4339 dy = pos;
4340 break;
4341
4342 default:
4343 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4344 action, action);
4345 return 0;
4346 }
4347 if (dy)
4348 EDIT_EM_LineScroll(es, 0, dy);
4349 return 0;
4350 }
4351
4352 /*********************************************************************
4353 *
4354 * EM_GETTHUMB
4355 *
4356 * FIXME: is this right ? (or should it be only VSCROLL)
4357 * (and maybe only for edit controls that really have their
4358 * own scrollbars) (and maybe only for multiline controls ?)
4359 * All in all: very poorly documented
4360 *
4361 */
4362 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
4363 {
4364 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB, 0),
4365 EDIT_WM_HScroll(es, EM_GETTHUMB, 0));
4366 }
4367
4368
4369 /********************************************************************
4370 *
4371 * The Following code is to handle inline editing from IMEs
4372 */
4373
4374 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
4375 {
4376 LONG buflen;
4377 LPWSTR lpCompStr;
4378 LPSTR lpCompStrAttr = NULL;
4379 DWORD dwBufLenAttr;
4380
4381 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4382
4383 if (buflen < 0)
4384 {
4385 return;
4386 }
4387
4388 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
4389 if (!lpCompStr)
4390 {
4391 ERR("Unable to allocate IME CompositionString\n");
4392 return;
4393 }
4394
4395 if (buflen)
4396 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
4397 lpCompStr[buflen/sizeof(WCHAR)] = 0;
4398
4399 if (CompFlag & GCS_COMPATTR)
4400 {
4401 /*
4402 * We do not use the attributes yet. it would tell us what characters
4403 * are in transition and which are converted or decided upon
4404 */
4405 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
4406 if (dwBufLenAttr)
4407 {
4408 dwBufLenAttr ++;
4409 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
4410 if (!lpCompStrAttr)
4411 {
4412 ERR("Unable to allocate IME Attribute String\n");
4413 HeapFree(GetProcessHeap(),0,lpCompStr);
4414 return;
4415 }
4416 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
4417 dwBufLenAttr);
4418 lpCompStrAttr[dwBufLenAttr] = 0;
4419 }
4420 }
4421
4422 /* check for change in composition start */
4423 if (es->selection_end < es->composition_start)
4424 es->composition_start = es->selection_end;
4425
4426 /* replace existing selection string */
4427 es->selection_start = es->composition_start;
4428
4429 if (es->composition_len > 0)
4430 es->selection_end = es->composition_start + es->composition_len;
4431 else
4432 es->selection_end = es->selection_start;
4433
4434 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
4435 es->composition_len = abs(es->composition_start - es->selection_end);
4436
4437 es->selection_start = es->composition_start;
4438 es->selection_end = es->selection_start + es->composition_len;
4439
4440 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
4441 HeapFree(GetProcessHeap(),0,lpCompStr);
4442 }
4443
4444 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
4445 {
4446 LONG buflen;
4447 LPWSTR lpResultStr;
4448
4449 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4450 if (buflen <= 0)
4451 {
4452 return;
4453 }
4454
4455 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
4456 if (!lpResultStr)
4457 {
4458 ERR("Unable to alloc buffer for IME string\n");
4459 return;
4460 }
4461
4462 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
4463 lpResultStr[buflen/sizeof(WCHAR)] = 0;
4464
4465 /* check for change in composition start */
4466 if (es->selection_end < es->composition_start)
4467 es->composition_start = es->selection_end;
4468
4469 es->selection_start = es->composition_start;
4470 es->selection_end = es->composition_start + es->composition_len;
4471 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
4472 es->composition_start = es->selection_end;
4473 es->composition_len = 0;
4474
4475 HeapFree(GetProcessHeap(),0,lpResultStr);
4476 }
4477
4478 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
4479 {
4480 HIMC hIMC;
4481 int cursor;
4482
4483 if (es->composition_len == 0 && es->selection_start != es->selection_end)
4484 {
4485 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4486 es->composition_start = es->selection_end;
4487 }
4488
4489 hIMC = ImmGetContext(hwnd);
4490 if (!hIMC)
4491 return;
4492
4493 if (CompFlag & GCS_RESULTSTR)
4494 {
4495 EDIT_GetResultStr(hIMC, es);
4496 cursor = 0;
4497 }
4498 else
4499 {
4500 if (CompFlag & GCS_COMPSTR)
4501 EDIT_GetCompositionStr(hIMC, CompFlag, es);
4502 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
4503 }
4504 ImmReleaseContext(hwnd, hIMC);
4505 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
4506 }
4507
4508
4509 /*********************************************************************
4510 *
4511 * WM_NCCREATE
4512 *
4513 * See also EDIT_WM_StyleChanged
4514 */
4515 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4516 {
4517 EDITSTATE *es;
4518 UINT alloc_size;
4519
4520 TRACE("Creating %s edit control, style = %08x\n",
4521 unicode ? "Unicode" : "ANSI", lpcs->style);
4522
4523 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4524 return FALSE;
4525 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4526
4527 /*
4528 * Note: since the EDITSTATE has not been fully initialized yet,
4529 * we can't use any API calls that may send
4530 * WM_XXX messages before WM_NCCREATE is completed.
4531 */
4532
4533 es->is_unicode = unicode;
4534 es->style = lpcs->style;
4535
4536 es->bEnableState = !(es->style & WS_DISABLED);
4537
4538 es->hwndSelf = hwnd;
4539 /* Save parent, which will be notified by EN_* messages */
4540 es->hwndParent = lpcs->hwndParent;
4541
4542 if (es->style & ES_COMBO)
4543 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4544
4545 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4546 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4547
4548 /* Number overrides lowercase overrides uppercase (at least it
4549 * does in Win95). However I'll bet that ES_NUMBER would be
4550 * invalid under Win 3.1.
4551 */
4552 if (es->style & ES_NUMBER) {
4553 ; /* do not override the ES_NUMBER */
4554 } else if (es->style & ES_LOWERCASE) {
4555 es->style &= ~ES_UPPERCASE;
4556 }
4557 if (es->style & ES_MULTILINE) {
4558 es->buffer_limit = BUFLIMIT_INITIAL;
4559 if (es->style & WS_VSCROLL)
4560 es->style |= ES_AUTOVSCROLL;
4561 if (es->style & WS_HSCROLL)
4562 es->style |= ES_AUTOHSCROLL;
4563 es->style &= ~ES_PASSWORD;
4564 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4565 /* Confirmed - RIGHT overrides CENTER */
4566 if (es->style & ES_RIGHT)
4567 es->style &= ~ES_CENTER;
4568 es->style &= ~WS_HSCROLL;
4569 es->style &= ~ES_AUTOHSCROLL;
4570 }
4571 } else {
4572 es->buffer_limit = BUFLIMIT_INITIAL;
4573 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4574 es->style &= ~ES_CENTER;
4575 es->style &= ~WS_HSCROLL;
4576 es->style &= ~WS_VSCROLL;
4577 if (es->style & ES_PASSWORD)
4578 es->password_char = '*';
4579 }
4580
4581 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4582 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4583 goto cleanup;
4584 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4585
4586 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4587 goto cleanup;
4588 es->undo_buffer_size = es->buffer_size;
4589
4590 if (es->style & ES_MULTILINE)
4591 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4592 goto cleanup;
4593 es->line_count = 1;
4594
4595 /*
4596 * In Win95 look and feel, the WS_BORDER style is replaced by the
4597 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4598 * control a nonclient area so we don't need to draw the border.
4599 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4600 * a nonclient area and we should handle painting the border ourselves.
4601 *
4602 * When making modifications please ensure that the code still works
4603 * for edit controls created directly with style 0x50800000, exStyle 0
4604 * (which should have a single pixel border)
4605 */
4606 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4607 es->style &= ~WS_BORDER;
4608 else if (es->style & WS_BORDER)
4609 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4610
4611 return TRUE;
4612
4613 cleanup:
4614 SetWindowLongPtrW(es->hwndSelf, 0, 0);
4615 EDIT_InvalidateUniscribeData(es);
4616 HeapFree(GetProcessHeap(), 0, es->first_line_def);
4617 HeapFree(GetProcessHeap(), 0, es->undo_text);
4618 if (es->hloc32W) LocalFree(es->hloc32W);
4619 HeapFree(GetProcessHeap(), 0, es->logAttr);
4620 HeapFree(GetProcessHeap(), 0, es);
4621 return FALSE;
4622 }
4623
4624
4625 /*********************************************************************
4626 *
4627 * WM_CREATE
4628 *
4629 */
4630 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4631 {
4632 RECT clientRect;
4633
4634 TRACE("%s\n", debugstr_w(name));
4635 /*
4636 * To initialize some final structure members, we call some helper
4637 * functions. However, since the EDITSTATE is not consistent (i.e.
4638 * not fully initialized), we should be very careful which
4639 * functions can be called, and in what order.
4640 */
4641 EDIT_WM_SetFont(es, 0, FALSE);
4642 EDIT_EM_EmptyUndoBuffer(es);
4643
4644 /* We need to calculate the format rect
4645 (applications may send EM_SETMARGINS before the control gets visible) */
4646 GetClientRect(es->hwndSelf, &clientRect);
4647 EDIT_SetRectNP(es, &clientRect);
4648
4649 if (name && *name) {
4650 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4651 /* if we insert text to the editline, the text scrolls out
4652 * of the window, as the caret is placed after the insert
4653 * pos normally; thus we reset es->selection... to 0 and
4654 * update caret
4655 */
4656 es->selection_start = es->selection_end = 0;
4657 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4658 * Messages are only to be sent when the USER does something to
4659 * change the contents. So I am removing this EN_CHANGE
4660 *
4661 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4662 */
4663 EDIT_EM_ScrollCaret(es);
4664 }
4665 /* force scroll info update */
4666 EDIT_UpdateScrollInfo(es);
4667 /* The rule seems to return 1 here for success */
4668 /* Power Builder masked edit controls will crash */
4669 /* if not. */
4670 /* FIXME: is that in all cases so ? */
4671 return 1;
4672 }
4673
4674
4675 /*********************************************************************
4676 *
4677 * WM_NCDESTROY
4678 *
4679 */
4680 static LRESULT EDIT_WM_NCDestroy(EDITSTATE *es)
4681 {
4682 LINEDEF *pc, *pp;
4683
4684 /* The app can own the text buffer handle */
4685 if (es->hloc32W && (es->hloc32W != es->hlocapp)) {
4686 LocalFree(es->hloc32W);
4687 }
4688 if (es->hloc32A && (es->hloc32A != es->hlocapp)) {
4689 LocalFree(es->hloc32A);
4690 }
4691 EDIT_InvalidateUniscribeData(es);
4692 pc = es->first_line_def;
4693 while (pc)
4694 {
4695 pp = pc->next;
4696 HeapFree(GetProcessHeap(), 0, pc);
4697 pc = pp;
4698 }
4699
4700 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4701 HeapFree(GetProcessHeap(), 0, es->undo_text);
4702 HeapFree(GetProcessHeap(), 0, es);
4703
4704 return 0;
4705 }
4706
4707
4708 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
4709 {
4710 if(unicode)
4711 return DefWindowProcW(hwnd, msg, wParam, lParam);
4712 else
4713 return DefWindowProcA(hwnd, msg, wParam, lParam);
4714 }
4715
4716 /*********************************************************************
4717 *
4718 * EditWndProc_common
4719 *
4720 * The messages are in the order of the actual integer values
4721 * (which can be found in include/windows.h)
4722 */
4723 LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode )
4724 {
4725 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
4726 LRESULT result = 0;
4727 #ifdef __REACTOS__
4728 /* ReactOS r50219 */
4729 PWND pWnd;
4730
4731 pWnd = ValidateHwnd(hwnd);
4732 if (pWnd)
4733 {
4734 if (!pWnd->fnid)
4735 {
4736 NtUserSetWindowFNID(hwnd, FNID_EDIT);
4737 }
4738 else
4739 {
4740 if (pWnd->fnid != FNID_EDIT)
4741 {
4742 ERR("Wrong window class for Edit! fnId 0x%x\n",pWnd->fnid);
4743 return 0;
4744 }
4745 }
4746 }
4747 #endif
4748
4749 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
4750
4751 if (!es && msg != WM_NCCREATE)
4752 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4753
4754 if (es && (msg != WM_NCDESTROY)) EDIT_LockBuffer(es);
4755
4756 switch (msg) {
4757 case EM_GETSEL:
4758 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
4759 break;
4760
4761 case EM_SETSEL:
4762 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
4763 EDIT_EM_ScrollCaret(es);
4764 result = 1;
4765 break;
4766
4767 case EM_GETRECT:
4768 if (lParam)
4769 CopyRect((LPRECT)lParam, &es->format_rect);
4770 break;
4771
4772 case EM_SETRECT:
4773 if ((es->style & ES_MULTILINE) && lParam) {
4774 EDIT_SetRectNP(es, (LPRECT)lParam);
4775 EDIT_UpdateText(es, NULL, TRUE);
4776 }
4777 break;
4778
4779 case EM_SETRECTNP:
4780 if ((es->style & ES_MULTILINE) && lParam)
4781 EDIT_SetRectNP(es, (LPRECT)lParam);
4782 break;
4783
4784 case EM_SCROLL:
4785 result = EDIT_EM_Scroll(es, (INT)wParam);
4786 break;
4787
4788 case EM_LINESCROLL:
4789 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
4790 break;
4791
4792 case EM_SCROLLCARET:
4793 EDIT_EM_ScrollCaret(es);
4794 result = 1;
4795 break;
4796
4797 case EM_GETMODIFY:
4798 result = ((es->flags & EF_MODIFIED) != 0);
4799 break;
4800
4801 case EM_SETMODIFY:
4802 if (wParam)
4803 es->flags |= EF_MODIFIED;
4804 else
4805 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
4806 break;
4807
4808 case EM_GETLINECOUNT:
4809 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
4810 break;
4811
4812 case EM_LINEINDEX:
4813 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
4814 break;
4815
4816 case EM_SETHANDLE:
4817 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
4818 break;
4819
4820 case EM_GETHANDLE:
4821 result = (LRESULT)EDIT_EM_GetHandle(es);
4822 break;
4823
4824 case EM_GETTHUMB:
4825 result = EDIT_EM_GetThumb(es);
4826 break;
4827
4828 /* these messages missing from specs */
4829 case 0x00bf:
4830 case 0x00c0:
4831 case 0x00c3:
4832 case 0x00ca:
4833 FIXME("undocumented message 0x%x, please report\n", msg);
4834 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4835 break;
4836
4837 case EM_LINELENGTH:
4838 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
4839 break;
4840
4841 case EM_REPLACESEL:
4842 {
4843 LPWSTR textW;
4844
4845 if(unicode)
4846 textW = (LPWSTR)lParam;
4847 else
4848 {
4849 LPSTR textA = (LPSTR)lParam;
4850 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4851 if (!(textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR)))) break;
4852 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4853 }
4854
4855 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
4856 result = 1;
4857
4858 if(!unicode)
4859 HeapFree(GetProcessHeap(), 0, textW);
4860 break;
4861 }
4862
4863 case EM_GETLINE:
4864 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
4865 break;
4866
4867 case EM_SETLIMITTEXT:
4868 EDIT_EM_SetLimitText(es, wParam);
4869 break;
4870
4871 case EM_CANUNDO:
4872 result = (LRESULT)EDIT_EM_CanUndo(es);
4873 break;
4874
4875 case EM_UNDO:
4876 case WM_UNDO:
4877 result = (LRESULT)EDIT_EM_Undo(es);
4878 break;
4879
4880 case EM_FMTLINES:
4881 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
4882 break;
4883
4884 case EM_LINEFROMCHAR:
4885 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
4886 break;
4887
4888 case EM_SETTABSTOPS:
4889 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
4890 break;
4891
4892 case EM_SETPASSWORDCHAR:
4893 {
4894 WCHAR charW = 0;
4895
4896 if(unicode)
4897 charW = (WCHAR)wParam;
4898 else
4899 {
4900 CHAR charA = wParam;
4901 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4902 }
4903
4904 EDIT_EM_SetPasswordChar(es, charW);
4905 break;
4906 }
4907
4908 case EM_EMPTYUNDOBUFFER:
4909 EDIT_EM_EmptyUndoBuffer(es);
4910 break;
4911
4912 case EM_GETFIRSTVISIBLELINE:
4913 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
4914 break;
4915
4916 case EM_SETREADONLY:
4917 {
4918 DWORD old_style = es->style;
4919
4920 if (wParam) {
4921 SetWindowLongW( hwnd, GWL_STYLE,
4922 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
4923 es->style |= ES_READONLY;
4924 } else {
4925 SetWindowLongW( hwnd, GWL_STYLE,
4926 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
4927 es->style &= ~ES_READONLY;
4928 }
4929
4930 if (old_style ^ es->style)
4931 InvalidateRect(es->hwndSelf, NULL, TRUE);
4932
4933 result = 1;
4934 break;
4935 }
4936
4937 case EM_SETWORDBREAKPROC:
4938 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
4939 break;
4940
4941 case EM_GETWORDBREAKPROC:
4942 result = (LRESULT)es->word_break_proc;
4943 break;
4944
4945 case EM_GETPASSWORDCHAR:
4946 {
4947 if(unicode)
4948 result = es->password_char;
4949 else
4950 {
4951 WCHAR charW = es->password_char;
4952 CHAR charA = 0;
4953 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
4954 result = charA;
4955 }
4956 break;
4957 }
4958
4959 case EM_SETMARGINS:
4960 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
4961 break;
4962
4963 case EM_GETMARGINS:
4964 result = MAKELONG(es->left_margin, es->right_margin);
4965 break;
4966
4967 case EM_GETLIMITTEXT:
4968 result = es->buffer_limit;
4969 break;
4970
4971 case EM_POSFROMCHAR:
4972 if ((INT)wParam >= get_text_length(es)) result = -1;
4973 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
4974 break;
4975
4976 case EM_CHARFROMPOS:
4977 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4978 break;
4979
4980 /* End of the EM_ messages which were in numerical order; what order
4981 * are these in? vaguely alphabetical?
4982 */
4983
4984 case WM_NCCREATE:
4985 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
4986 break;
4987
4988 case WM_NCDESTROY:
4989 result = EDIT_WM_NCDestroy(es);
4990 #ifdef __REACTOS__
4991 NtUserSetWindowFNID(hwnd, FNID_DESTROY);
4992 #else
4993 es = NULL;
4994 #endif
4995 break;
4996
4997 case WM_GETDLGCODE:
4998 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
4999
5000 if (es->style & ES_MULTILINE)
5001 result |= DLGC_WANTALLKEYS;
5002
5003 if (lParam)
5004 {
5005 es->flags|=EF_DIALOGMODE;
5006
5007 if (((LPMSG)lParam)->message == WM_KEYDOWN)
5008 {
5009 int vk = (int)((LPMSG)lParam)->wParam;
5010
5011 if (es->hwndListBox)
5012 {
5013 if (vk == VK_RETURN || vk == VK_ESCAPE)
5014 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
5015 result |= DLGC_WANTMESSAGE;
5016 }
5017 }
5018 }
5019 break;
5020
5021 case WM_IME_CHAR:
5022 if (!unicode)
5023 {
5024 WCHAR charW;
5025 CHAR strng[2];
5026
5027 strng[0] = wParam >> 8;
5028 strng[1] = wParam & 0xff;
5029 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
5030 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
5031 result = EDIT_WM_Char(es, charW);
5032 break;
5033 }
5034 /* fall through */
5035 case WM_CHAR:
5036 {
5037 WCHAR charW;
5038
5039 if(unicode)
5040 charW = wParam;
5041 else
5042 {
5043 CHAR charA = wParam;
5044 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
5045 }
5046
5047 if (es->hwndListBox)
5048 {
5049 if (charW == VK_RETURN || charW == VK_ESCAPE)
5050 {
5051 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
5052 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
5053 break;
5054 }
5055 }
5056 result = EDIT_WM_Char(es, charW);
5057 break;
5058 }
5059
5060 case WM_UNICHAR:
5061 if (unicode)
5062 {
5063 if (wParam == UNICODE_NOCHAR) return TRUE;
5064 if (wParam <= 0x000fffff)
5065 {
5066 if(wParam > 0xffff) /* convert to surrogates */
5067 {
5068 wParam -= 0x10000;
5069 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
5070 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
5071 }
5072 else EDIT_WM_Char(es, wParam);
5073 }
5074 return 0;
5075 }
5076 break;
5077
5078 case WM_CLEAR:
5079 EDIT_WM_Clear(es);
5080 break;
5081
5082 case WM_CONTEXTMENU:
5083 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
5084 break;
5085
5086 case WM_COPY:
5087 EDIT_WM_Copy(es);
5088 break;
5089
5090 case WM_CREATE:
5091 if(unicode)
5092 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
5093 else
5094 {
5095 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
5096 LPWSTR nameW = NULL;
5097 if(nameA)
5098 {
5099 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
5100 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
5101 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
5102 }
5103 result = EDIT_WM_Create(es, nameW);
5104 HeapFree(GetProcessHeap(), 0, nameW);
5105 }
5106 break;
5107
5108 case WM_CUT:
5109 EDIT_WM_Cut(es);
5110 break;
5111
5112 case WM_ENABLE:
5113 es->bEnableState = (BOOL) wParam;
5114 EDIT_UpdateText(es, NULL, TRUE);
5115 break;
5116
5117 case WM_ERASEBKGND:
5118 /* we do the proper erase in EDIT_WM_Paint */
5119 result = 1;
5120 break;
5121
5122 case WM_GETFONT:
5123 result = (LRESULT)es->font;
5124 break;
5125
5126 case WM_GETTEXT:
5127 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
5128 break;
5129
5130 case WM_GETTEXTLENGTH:
5131 if (unicode) result = get_text_length(es);
5132 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
5133 NULL, 0, NULL, NULL );
5134 break;
5135
5136 case WM_HSCROLL:
5137 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
5138 break;
5139
5140 case WM_KEYDOWN:
5141 result = EDIT_WM_KeyDown(es, (INT)wParam);
5142 break;
5143
5144 case WM_KILLFOCUS:
5145 result = EDIT_WM_KillFocus(es);
5146 break;
5147
5148 case WM_LBUTTONDBLCLK:
5149 result = EDIT_WM_LButtonDblClk(es);
5150 break;
5151
5152 case WM_LBUTTONDOWN:
5153 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
5154 break;
5155
5156 case WM_LBUTTONUP:
5157 result = EDIT_WM_LButtonUp(es);
5158 break;
5159
5160 case WM_MBUTTONDOWN:
5161 result = EDIT_WM_MButtonDown(es);
5162 break;
5163
5164 case WM_MOUSEMOVE:
5165 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
5166 break;
5167
5168 case WM_PRINTCLIENT:
5169 case WM_PAINT:
5170 EDIT_WM_Paint(es, (HDC)wParam);
5171 break;
5172
5173 case WM_PASTE:
5174 EDIT_WM_Paste(es);
5175 break;
5176
5177 case WM_SETFOCUS:
5178 EDIT_WM_SetFocus(es);
5179 break;
5180
5181 case WM_SETFONT:
5182 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
5183 break;
5184
5185 case WM_SETREDRAW:
5186 /* FIXME: actually set an internal flag and behave accordingly */
5187 break;
5188
5189 case WM_SETTEXT:
5190 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
5191 result = TRUE;
5192 break;
5193
5194 case WM_SIZE:
5195 EDIT_WM_Size(es, (UINT)wParam);
5196 break;
5197
5198 case WM_STYLECHANGED:
5199 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
5200 break;
5201
5202 case WM_STYLECHANGING:
5203 result = 0; /* See EDIT_WM_StyleChanged */
5204 break;
5205
5206 case WM_SYSKEYDOWN:
5207 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
5208 break;
5209
5210 case WM_TIMER:
5211 EDIT_WM_Timer(es);
5212 break;
5213
5214 case WM_VSCROLL:
5215 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
5216 break;
5217
5218 case WM_MOUSEWHEEL:
5219 {
5220 int wheelDelta;
5221 UINT pulScrollLines = 3;
5222 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
5223
5224 if (wParam & (MK_SHIFT | MK_CONTROL)) {
5225 result = DefWindowProcW(hwnd, msg, wParam, lParam);
5226 break;
5227 }
5228 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
5229 /* if scrolling changes direction, ignore left overs */
5230 if ((wheelDelta < 0 && es->wheelDeltaRemainder < 0) ||
5231 (wheelDelta > 0 && es->wheelDeltaRemainder > 0))
5232 es->wheelDeltaRemainder += wheelDelta;
5233 else
5234 es->wheelDeltaRemainder = wheelDelta;
5235 if (es->wheelDeltaRemainder && pulScrollLines)
5236 {
5237 int cLineScroll;
5238 pulScrollLines = (int) min((UINT) es->line_count, pulScrollLines);
5239 cLineScroll = pulScrollLines * (float)es->wheelDeltaRemainder / WHEEL_DELTA;
5240 es->wheelDeltaRemainder -= WHEEL_DELTA * cLineScroll / (int)pulScrollLines;
5241 result = EDIT_EM_LineScroll(es, 0, -cLineScroll);
5242 }
5243 }
5244 break;
5245
5246
5247 /* IME messages to make the edit control IME aware */
5248 case WM_IME_SETCONTEXT:
5249 break;
5250
5251 case WM_IME_STARTCOMPOSITION:
5252 es->composition_start = es->selection_end;
5253 es->composition_len = 0;
5254 break;
5255
5256 case WM_IME_COMPOSITION:
5257 EDIT_ImeComposition(hwnd, lParam, es);
5258 break;
5259
5260 case WM_IME_ENDCOMPOSITION:
5261 if (es->composition_len > 0)
5262 {
5263 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5264 es->selection_end = es->selection_start;
5265 es->composition_len= 0;
5266 }
5267 break;
5268
5269 case WM_IME_COMPOSITIONFULL:
5270 break;
5271
5272 case WM_IME_SELECT:
5273 break;
5274
5275 case WM_IME_CONTROL:
5276 break;
5277
5278 case WM_IME_REQUEST:
5279 switch (wParam)
5280 {
5281 case IMR_QUERYCHARPOSITION:
5282 {
5283 LRESULT pos;
5284 IMECHARPOSITION *chpos = (IMECHARPOSITION *)lParam;
5285
5286 pos = EDIT_EM_PosFromChar(es, es->selection_start + chpos->dwCharPos, FALSE);
5287 chpos->pt.x = LOWORD(pos);
5288 chpos->pt.y = HIWORD(pos);
5289 chpos->cLineHeight = es->line_height;
5290 chpos->rcDocument = es->format_rect;
5291 MapWindowPoints(hwnd, 0, &chpos->pt, 1);
5292 MapWindowPoints(hwnd, 0, (POINT*)&chpos->rcDocument, 2);
5293 result = 1;
5294 break;
5295 }
5296 }
5297 break;
5298
5299 default:
5300 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
5301 break;
5302 }
5303
5304 #ifdef __REACTOS__
5305 /* ReactOS: check GetWindowLong in case es has been destroyed during processing */
5306 if (IsWindow(hwnd) && es && GetWindowLongPtrW(hwnd, 0))
5307 EDIT_UnlockBuffer(es, FALSE);
5308 #else
5309 if (IsWindow(hwnd) && es) EDIT_UnlockBuffer(es, FALSE);
5310 #endif
5311
5312 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
5313
5314 return result;
5315 }
5316
5317 #ifdef __REACTOS__
5318
5319 /*********************************************************************
5320 *
5321 * EditWndProc (USER32.@)
5322 */
5323 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5324 {
5325 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
5326 }
5327
5328 /*********************************************************************
5329 *
5330 * EditWndProcW (USER32.@)
5331 */
5332 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5333 {
5334 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
5335 }
5336
5337 #endif /* __REACTOS__ */
5338
5339 /*********************************************************************
5340 * edit class descriptor
5341 */
5342 static const WCHAR editW[] = {'E','d','i','t',0};
5343 const struct builtin_class_descr EDIT_builtin_class =
5344 {
5345 editW, /* name */
5346 CS_DBLCLKS | CS_PARENTDC, /* style */
5347 #ifdef __REACTOS__
5348 EditWndProcA, /* procA */
5349 EditWndProcW, /* procW */
5350 #else
5351 WINPROC_EDIT, /* proc */
5352 #endif
5353 #ifndef _WIN64
5354 sizeof(EDITSTATE *) + sizeof(WORD), /* extra */
5355 #else
5356 sizeof(EDITSTATE *), /* extra */
5357 #endif
5358 IDC_IBEAM, /* cursor */
5359 0 /* brush */
5360 };
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