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[NTDLL][NTUSER] Fix unselected text after WM_CBLOSTTEXTFOCUS
[reactos.git] / 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 WINE_DEFAULT_DEBUG_CHANNEL(edit);
50 WINE_DECLARE_DEBUG_CHANNEL(combo);
51 WINE_DECLARE_DEBUG_CHANNEL(relay);
52
53 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
54 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
55 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
56 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
57
58 /*
59 * extra flags for EDITSTATE.flags field
60 */
61 #define EF_MODIFIED 0x0001 /* text has been modified */
62 #define EF_FOCUSED 0x0002 /* we have input focus */
63 #define EF_UPDATE 0x0004 /* notify parent of changed state */
64 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
65 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
66 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
67 wrapped line, instead of in front of the next character */
68 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
69 #define EF_DIALOGMODE 0x0200 /* Indicates that we are inside a dialog window */
70
71 typedef enum
72 {
73 END_0 = 0, /* line ends with terminating '\0' character */
74 END_WRAP, /* line is wrapped */
75 END_HARD, /* line ends with a hard return '\r\n' */
76 END_SOFT, /* line ends with a soft return '\r\r\n' */
77 END_RICH /* line ends with a single '\n' */
78 } LINE_END;
79
80 typedef struct tagLINEDEF {
81 INT length; /* bruto length of a line in bytes */
82 INT net_length; /* netto length of a line in visible characters */
83 LINE_END ending;
84 INT width; /* width of the line in pixels */
85 INT index; /* line index into the buffer */
86 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data */
87 struct tagLINEDEF *next;
88 } LINEDEF;
89
90 typedef struct
91 {
92 BOOL is_unicode; /* how the control was created */
93 LPWSTR text; /* the actual contents of the control */
94 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
95 UINT buffer_size; /* the size of the buffer in characters */
96 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
97 HFONT font; /* NULL means standard system font */
98 INT x_offset; /* scroll offset for multi lines this is in pixels
99 for single lines it's in characters */
100 INT line_height; /* height of a screen line in pixels */
101 INT char_width; /* average character width in pixels */
102 DWORD style; /* sane version of wnd->dwStyle */
103 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
104 INT undo_insert_count; /* number of characters inserted in sequence */
105 UINT undo_position; /* character index of the insertion and deletion */
106 LPWSTR undo_text; /* deleted text */
107 UINT undo_buffer_size; /* size of the deleted text buffer */
108 INT selection_start; /* == selection_end if no selection */
109 INT selection_end; /* == current caret position */
110 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
111 INT left_margin; /* in pixels */
112 INT right_margin; /* in pixels */
113 RECT format_rect;
114 INT text_width; /* width of the widest line in pixels for multi line controls
115 and just line width for single line controls */
116 INT region_posx; /* Position of cursor relative to region: */
117 INT region_posy; /* -1: to left, 0: within, 1: to right */
118 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
119 INT line_count; /* number of lines */
120 INT y_offset; /* scroll offset in number of lines */
121 BOOL bCaptureState; /* flag indicating whether mouse was captured */
122 BOOL bEnableState; /* flag keeping the enable state */
123 HWND hwndSelf; /* the our window handle */
124 HWND hwndParent; /* Handle of parent for sending EN_* messages.
125 Even if parent will change, EN_* messages
126 should be sent to the first parent. */
127 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
128 INT wheelDeltaRemainder; /* scroll wheel delta left over after scrolling whole lines */
129 /*
130 * only for multi line controls
131 */
132 INT lock_count; /* amount of re-entries in the EditWndProc */
133 INT tabs_count;
134 LPINT tabs;
135 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
136 HLOCAL hloc32W; /* our unicode local memory block */
137 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
138 or EM_SETHANDLE */
139 HLOCAL hlocapp; /* The text buffer handle belongs to the app */
140 /*
141 * IME Data
142 */
143 UINT composition_len; /* length of composition, 0 == no composition */
144 int composition_start; /* the character position for the composition */
145 /*
146 * Uniscribe Data
147 */
148 SCRIPT_LOGATTR *logAttr;
149 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data for single line controls */
150 } EDITSTATE;
151
152
153 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
154 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
155
156 /* used for disabled or read-only edit control */
157 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
158 do \
159 { /* Notify parent which has created this edit control */ \
160 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
161 SendMessageW(es->hwndParent, WM_COMMAND, \
162 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
163 (LPARAM)(es->hwndSelf)); \
164 } while(0)
165
166 static const WCHAR empty_stringW[] = {0};
167 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
168
169 /*********************************************************************
170 *
171 * EM_CANUNDO
172 *
173 */
174 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
175 {
176 return (es->undo_insert_count || strlenW(es->undo_text));
177 }
178
179
180 /*********************************************************************
181 *
182 * EM_EMPTYUNDOBUFFER
183 *
184 */
185 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
186 {
187 es->undo_insert_count = 0;
188 *es->undo_text = '\0';
189 }
190
191
192 /**********************************************************************
193 * get_app_version
194 *
195 * Returns the window version in case Wine emulates a later version
196 * of windows than the application expects.
197 *
198 * In a number of cases when windows runs an application that was
199 * designed for an earlier windows version, windows reverts
200 * to "old" behaviour of that earlier version.
201 *
202 * An example is a disabled edit control that needs to be painted.
203 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
204 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
205 * applications with an expected version 0f 4.0 or higher.
206 *
207 */
208 static DWORD get_app_version(void)
209 {
210 static DWORD version;
211 if (!version)
212 {
213 DWORD dwEmulatedVersion;
214 OSVERSIONINFOW info;
215 DWORD dwProcVersion = GetProcessVersion(0);
216
217 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
218 GetVersionExW( &info );
219 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
220 /* FIXME: this may not be 100% correct; see discussion on the
221 * wine developer list in Nov 1999 */
222 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
223 }
224 return version;
225 }
226
227 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
228 {
229 HBRUSH hbrush;
230 UINT msg;
231
232 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
233 msg = WM_CTLCOLORSTATIC;
234 else
235 msg = WM_CTLCOLOREDIT;
236
237 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
238 #ifdef __REACTOS__
239 /* ReactOS r54259 */
240 hbrush = GetControlBrush(es->hwndSelf, hdc, msg);
241 #else
242 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
243 if (!hbrush)
244 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
245 #endif
246 return hbrush;
247 }
248
249
250 static inline UINT get_text_length(EDITSTATE *es)
251 {
252 if(es->text_length == (UINT)-1)
253 es->text_length = strlenW(es->text);
254 return es->text_length;
255 }
256
257
258 /*********************************************************************
259 *
260 * EDIT_WordBreakProc
261 *
262 * Find the beginning of words.
263 * Note: unlike the specs for a WordBreakProc, this function can
264 * only be called without linebreaks between s[0] up to
265 * s[count - 1]. Remember it is only called
266 * internally, so we can decide this for ourselves.
267 * Additionally we will always be breaking the full string.
268 *
269 */
270 static INT EDIT_WordBreakProc(EDITSTATE *es, LPWSTR s, INT index, INT count, INT action)
271 {
272 INT ret = 0;
273
274 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
275
276 if(!s) return 0;
277
278 if (!es->logAttr)
279 {
280 SCRIPT_ANALYSIS psa;
281
282 memset(&psa,0,sizeof(SCRIPT_ANALYSIS));
283 psa.eScript = SCRIPT_UNDEFINED;
284
285 es->logAttr = HeapAlloc(GetProcessHeap(), 0, sizeof(SCRIPT_LOGATTR) * get_text_length(es));
286 ScriptBreak(es->text, get_text_length(es), &psa, es->logAttr);
287 }
288
289 switch (action) {
290 case WB_LEFT:
291 if (index)
292 index--;
293 while (index && !es->logAttr[index].fSoftBreak)
294 index--;
295 ret = index;
296 break;
297 case WB_RIGHT:
298 if (!count)
299 break;
300 while (index < count && s[index] && !es->logAttr[index].fSoftBreak)
301 index++;
302 ret = index;
303 break;
304 case WB_ISDELIMITER:
305 ret = es->logAttr[index].fWhiteSpace;
306 break;
307 default:
308 ERR("unknown action code, please report !\n");
309 break;
310 }
311 return ret;
312 }
313
314
315 /*********************************************************************
316 *
317 * EDIT_CallWordBreakProc
318 *
319 * Call appropriate WordBreakProc (internal or external).
320 *
321 * Note: The "start" argument should always be an index referring
322 * to es->text. The actual wordbreak proc might be
323 * 16 bit, so we can't always pass any 32 bit LPSTR.
324 * Hence we assume that es->text is the buffer that holds
325 * the string under examination (we can decide this for ourselves).
326 *
327 */
328 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
329 {
330 INT ret;
331
332 if (es->word_break_proc)
333 {
334 if(es->is_unicode)
335 {
336 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
337
338 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
339 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
340 ret = wbpW(es->text + start, index, count, action);
341 }
342 else
343 {
344 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
345 INT countA;
346 CHAR *textA;
347
348 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
349 textA = HeapAlloc(GetProcessHeap(), 0, countA);
350 #ifdef __REACTOS__
351 /* ReactOS r33503 */
352 if (textA == NULL) return 0;
353 #endif
354 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
355 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
356 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
357 ret = wbpA(textA, index, countA, action);
358 HeapFree(GetProcessHeap(), 0, textA);
359 }
360 }
361 else
362 ret = EDIT_WordBreakProc(es, es->text, index+start, count+start, action) - start;
363
364 return ret;
365 }
366
367 static inline void EDIT_InvalidateUniscribeData_linedef(LINEDEF *line_def)
368 {
369 if (line_def->ssa)
370 {
371 ScriptStringFree(&line_def->ssa);
372 line_def->ssa = NULL;
373 }
374 }
375
376 static inline void EDIT_InvalidateUniscribeData(EDITSTATE *es)
377 {
378 LINEDEF *line_def = es->first_line_def;
379 while (line_def)
380 {
381 EDIT_InvalidateUniscribeData_linedef(line_def);
382 line_def = line_def->next;
383 }
384 if (es->ssa)
385 {
386 ScriptStringFree(&es->ssa);
387 es->ssa = NULL;
388 }
389 }
390
391 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData_linedef(EDITSTATE *es, HDC dc, LINEDEF *line_def)
392 {
393 if (!line_def)
394 return NULL;
395
396 if (line_def->net_length && !line_def->ssa)
397 {
398 int index = line_def->index;
399 HFONT old_font = NULL;
400 HDC udc = dc;
401 SCRIPT_TABDEF tabdef;
402 HRESULT hr;
403
404 if (!udc)
405 udc = GetDC(es->hwndSelf);
406 if (es->font)
407 old_font = SelectObject(udc, es->font);
408
409 tabdef.cTabStops = es->tabs_count;
410 tabdef.iScale = 0;
411 tabdef.pTabStops = es->tabs;
412 tabdef.iTabOrigin = 0;
413
414 hr = ScriptStringAnalyse(udc, &es->text[index], line_def->net_length,
415 #ifdef __REACTOS__
416 /* ReactOS r57679 */
417 (3*line_def->net_length/2+16), -1,
418 #else
419 (1.5*line_def->net_length+16), -1,
420 #endif
421 SSA_LINK|SSA_FALLBACK|SSA_GLYPHS|SSA_TAB, -1,
422 NULL, NULL, NULL, &tabdef, NULL, &line_def->ssa);
423 if (FAILED(hr))
424 {
425 WARN("ScriptStringAnalyse failed (%x)\n",hr);
426 line_def->ssa = NULL;
427 }
428
429 if (es->font)
430 SelectObject(udc, old_font);
431 if (udc != dc)
432 ReleaseDC(es->hwndSelf, udc);
433 }
434
435 return line_def->ssa;
436 }
437
438 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData(EDITSTATE *es, HDC dc, INT line)
439 {
440 LINEDEF *line_def;
441
442 if (!(es->style & ES_MULTILINE))
443 {
444 if (!es->ssa)
445 {
446 INT length = get_text_length(es);
447 HFONT old_font = NULL;
448 HDC udc = dc;
449
450 if (!udc)
451 udc = GetDC(es->hwndSelf);
452 if (es->font)
453 old_font = SelectObject(udc, es->font);
454
455 if (es->style & ES_PASSWORD)
456 #ifdef __REACTOS__
457 /* ReactOS r57677 */
458 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);
459 #else
460 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);
461 #endif
462 else
463 #ifdef __REACTOS__
464 /* ReactOS r57677 */
465 ScriptStringAnalyse(udc, es->text, length, (3*length/2+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
466 #else
467 ScriptStringAnalyse(udc, es->text, length, (1.5*length+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
468 #endif
469
470 if (es->font)
471 SelectObject(udc, old_font);
472 if (udc != dc)
473 ReleaseDC(es->hwndSelf, udc);
474 }
475 return es->ssa;
476 }
477 else
478 {
479 line_def = es->first_line_def;
480 while (line_def && line)
481 {
482 line_def = line_def->next;
483 line--;
484 }
485
486 return EDIT_UpdateUniscribeData_linedef(es,dc,line_def);
487 }
488 }
489
490 static inline INT get_vertical_line_count(EDITSTATE *es)
491 {
492 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
493 return max(1,vlc);
494 }
495
496 /*********************************************************************
497 *
498 * EDIT_BuildLineDefs_ML
499 *
500 * Build linked list of text lines.
501 * Lines can end with '\0' (last line), a character (if it is wrapped),
502 * a soft return '\r\r\n' or a hard return '\r\n'
503 *
504 */
505 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
506 {
507 LPWSTR current_position, cp;
508 INT fw;
509 LINEDEF *current_line;
510 LINEDEF *previous_line;
511 LINEDEF *start_line;
512 INT line_index = 0, nstart_line, nstart_index;
513 INT line_count = es->line_count;
514 INT orig_net_length;
515 RECT rc;
516 INT vlc;
517
518 if (istart == iend && delta == 0)
519 return;
520
521 previous_line = NULL;
522 current_line = es->first_line_def;
523
524 /* Find starting line. istart must lie inside an existing line or
525 * at the end of buffer */
526 do {
527 if (istart < current_line->index + current_line->length ||
528 current_line->ending == END_0)
529 break;
530
531 previous_line = current_line;
532 current_line = current_line->next;
533 line_index++;
534 } while (current_line);
535
536 if (!current_line) /* Error occurred start is not inside previous buffer */
537 {
538 FIXME(" modification occurred outside buffer\n");
539 return;
540 }
541
542 /* Remember start of modifications in order to calculate update region */
543 nstart_line = line_index;
544 nstart_index = current_line->index;
545
546 /* We must start to reformat from the previous line since the modifications
547 * may have caused the line to wrap upwards. */
548 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
549 {
550 line_index--;
551 current_line = previous_line;
552 }
553 start_line = current_line;
554
555 fw = es->format_rect.right - es->format_rect.left;
556 current_position = es->text + current_line->index;
557 vlc = get_vertical_line_count(es);
558 do {
559 if (current_line != start_line)
560 {
561 if (!current_line || current_line->index + delta > current_position - es->text)
562 {
563 /* The buffer has been expanded, create a new line and
564 insert it into the link list */
565 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF));
566 #ifdef __REACTOS__
567 /* ReactOS r33509 */
568 if (new_line == NULL)
569 break;
570 #endif
571 new_line->next = previous_line->next;
572 previous_line->next = new_line;
573 current_line = new_line;
574 es->line_count++;
575 }
576 else if (current_line->index + delta < current_position - es->text)
577 {
578 /* The previous line merged with this line so we delete this extra entry */
579 previous_line->next = current_line->next;
580 HeapFree(GetProcessHeap(), 0, current_line);
581 current_line = previous_line->next;
582 es->line_count--;
583 continue;
584 }
585 else /* current_line->index + delta == current_position */
586 {
587 if (current_position - es->text > iend)
588 break; /* We reached end of line modifications */
589 /* else recalculate this line */
590 }
591 }
592
593 current_line->index = current_position - es->text;
594 orig_net_length = current_line->net_length;
595
596 /* Find end of line */
597 cp = current_position;
598 while (*cp) {
599 if (*cp == '\n') break;
600 if ((*cp == '\r') && (*(cp + 1) == '\n'))
601 break;
602 cp++;
603 }
604
605 /* Mark type of line termination */
606 if (!(*cp)) {
607 current_line->ending = END_0;
608 current_line->net_length = strlenW(current_position);
609 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
610 current_line->ending = END_SOFT;
611 current_line->net_length = cp - current_position - 1;
612 } else if (*cp == '\n') {
613 current_line->ending = END_RICH;
614 current_line->net_length = cp - current_position;
615 } else {
616 current_line->ending = END_HARD;
617 current_line->net_length = cp - current_position;
618 }
619
620 if (current_line->net_length)
621 {
622 const SIZE *sz;
623 EDIT_InvalidateUniscribeData_linedef(current_line);
624 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
625 if (current_line->ssa)
626 {
627 sz = ScriptString_pSize(current_line->ssa);
628 /* Calculate line width */
629 current_line->width = sz->cx;
630 }
631 else current_line->width = es->char_width * current_line->net_length;
632 }
633 else current_line->width = 0;
634
635 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
636
637 /* Line breaks just look back from the end and find the next break and try that. */
638
639 if (!(es->style & ES_AUTOHSCROLL)) {
640 if (current_line->width > fw && fw > es->char_width) {
641
642 INT prev, next;
643 int w;
644 const SIZE *sz;
645 float d;
646
647 prev = current_line->net_length - 1;
648 w = current_line->net_length;
649 d = (float)current_line->width/(float)fw;
650 if (d > 1.2f) d -= 0.2f;
651 next = prev/d;
652 if (next >= prev) next = prev-1;
653 do {
654 prev = EDIT_CallWordBreakProc(es, current_position - es->text,
655 next, current_line->net_length, WB_LEFT);
656 current_line->net_length = prev;
657 EDIT_InvalidateUniscribeData_linedef(current_line);
658 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
659 if (current_line->ssa)
660 sz = ScriptString_pSize(current_line->ssa);
661 else sz = 0;
662 if (sz)
663 current_line->width = sz->cx;
664 else
665 prev = 0;
666 next = prev - 1;
667 } while (prev && current_line->width > fw);
668 current_line->net_length = w;
669
670 if (prev == 0) { /* Didn't find a line break so force a break */
671 INT *piDx;
672 const INT *count;
673
674 EDIT_InvalidateUniscribeData_linedef(current_line);
675 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
676
677 if (current_line->ssa)
678 {
679 count = ScriptString_pcOutChars(current_line->ssa);
680 piDx = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * (*count));
681 ScriptStringGetLogicalWidths(current_line->ssa,piDx);
682
683 prev = current_line->net_length-1;
684 do {
685 current_line->width -= piDx[prev];
686 prev--;
687 } while ( prev > 0 && current_line->width > fw);
688 if (prev<=0)
689 prev = 1;
690 HeapFree(GetProcessHeap(),0,piDx);
691 }
692 else
693 prev = (fw / es->char_width);
694 }
695
696 /* If the first line we are calculating, wrapped before istart, we must
697 * adjust istart in order for this to be reflected in the update region. */
698 if (current_line->index == nstart_index && istart > current_line->index + prev)
699 istart = current_line->index + prev;
700 /* else if we are updating the previous line before the first line we
701 * are re-calculating and it expanded */
702 else if (current_line == start_line &&
703 current_line->index != nstart_index && orig_net_length < prev)
704 {
705 /* Line expanded due to an upwards line wrap so we must partially include
706 * previous line in update region */
707 nstart_line = line_index;
708 nstart_index = current_line->index;
709 istart = current_line->index + orig_net_length;
710 }
711
712 current_line->net_length = prev;
713 current_line->ending = END_WRAP;
714
715 if (current_line->net_length > 0)
716 {
717 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
718 if (current_line->ssa)
719 {
720 sz = ScriptString_pSize(current_line->ssa);
721 current_line->width = sz->cx;
722 }
723 else
724 current_line->width = 0;
725 }
726 else current_line->width = 0;
727 }
728 else if (current_line == start_line &&
729 current_line->index != nstart_index &&
730 orig_net_length < current_line->net_length) {
731 /* The previous line expanded but it's still not as wide as the client rect */
732 /* The expansion is due to an upwards line wrap so we must partially include
733 it in the update region */
734 nstart_line = line_index;
735 nstart_index = current_line->index;
736 istart = current_line->index + orig_net_length;
737 }
738 }
739
740
741 /* Adjust length to include line termination */
742 switch (current_line->ending) {
743 case END_SOFT:
744 current_line->length = current_line->net_length + 3;
745 break;
746 case END_RICH:
747 current_line->length = current_line->net_length + 1;
748 break;
749 case END_HARD:
750 current_line->length = current_line->net_length + 2;
751 break;
752 case END_WRAP:
753 case END_0:
754 current_line->length = current_line->net_length;
755 break;
756 }
757 es->text_width = max(es->text_width, current_line->width);
758 current_position += current_line->length;
759 previous_line = current_line;
760
761 /* Discard data for non-visible lines. It will be calculated as needed */
762 if ((line_index < es->y_offset) || (line_index > es->y_offset + vlc))
763 EDIT_InvalidateUniscribeData_linedef(current_line);
764
765 current_line = current_line->next;
766 line_index++;
767 } while (previous_line->ending != END_0);
768
769 /* Finish adjusting line indexes by delta or remove hanging lines */
770 if (previous_line->ending == END_0)
771 {
772 LINEDEF *pnext = NULL;
773
774 previous_line->next = NULL;
775 while (current_line)
776 {
777 pnext = current_line->next;
778 EDIT_InvalidateUniscribeData_linedef(current_line);
779 HeapFree(GetProcessHeap(), 0, current_line);
780 current_line = pnext;
781 es->line_count--;
782 }
783 }
784 else if (delta != 0)
785 {
786 while (current_line)
787 {
788 current_line->index += delta;
789 current_line = current_line->next;
790 }
791 }
792
793 /* Calculate rest of modification rectangle */
794 if (hrgn)
795 {
796 HRGN tmphrgn;
797 /*
798 * We calculate two rectangles. One for the first line which may have
799 * an indent with respect to the format rect. The other is a format-width
800 * rectangle that spans the rest of the lines that changed or moved.
801 */
802 rc.top = es->format_rect.top + nstart_line * es->line_height -
803 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
804 rc.bottom = rc.top + es->line_height;
805 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
806 rc.left = es->format_rect.left;
807 else
808 rc.left = LOWORD(EDIT_EM_PosFromChar(es, nstart_index, FALSE));
809 rc.right = es->format_rect.right;
810 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
811
812 rc.top = rc.bottom;
813 rc.left = es->format_rect.left;
814 rc.right = es->format_rect.right;
815 /*
816 * If lines were added or removed we must re-paint the remainder of the
817 * lines since the remaining lines were either shifted up or down.
818 */
819 if (line_count < es->line_count) /* We added lines */
820 rc.bottom = es->line_count * es->line_height;
821 else if (line_count > es->line_count) /* We removed lines */
822 rc.bottom = line_count * es->line_height;
823 else
824 rc.bottom = line_index * es->line_height;
825 rc.bottom += es->format_rect.top;
826 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
827 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
828 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
829 DeleteObject(tmphrgn);
830 }
831 }
832
833 /*********************************************************************
834 *
835 * EDIT_CalcLineWidth_SL
836 *
837 */
838 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
839 {
840 EDIT_UpdateUniscribeData(es, NULL, 0);
841 if (es->ssa)
842 {
843 const SIZE *size;
844 size = ScriptString_pSize(es->ssa);
845 es->text_width = size->cx;
846 }
847 else
848 es->text_width = 0;
849 }
850
851 /*********************************************************************
852 *
853 * EDIT_CharFromPos
854 *
855 * Beware: This is not the function called on EM_CHARFROMPOS
856 * The position _can_ be outside the formatting / client
857 * rectangle
858 * The return value is only the character index
859 *
860 */
861 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
862 {
863 INT index;
864
865 if (es->style & ES_MULTILINE) {
866 int trailing;
867 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
868 INT line_index = 0;
869 LINEDEF *line_def = es->first_line_def;
870 EDIT_UpdateUniscribeData(es, NULL, line);
871 while ((line > 0) && line_def->next) {
872 line_index += line_def->length;
873 line_def = line_def->next;
874 line--;
875 }
876
877 x += es->x_offset - es->format_rect.left;
878 if (es->style & ES_RIGHT)
879 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
880 else if (es->style & ES_CENTER)
881 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
882 if (x >= line_def->width) {
883 if (after_wrap)
884 *after_wrap = (line_def->ending == END_WRAP);
885 return line_index + line_def->net_length;
886 }
887 if (x <= 0 || !line_def->ssa) {
888 if (after_wrap)
889 *after_wrap = FALSE;
890 return line_index;
891 }
892
893 ScriptStringXtoCP(line_def->ssa, x , &index, &trailing);
894 if (trailing) index++;
895 index += line_index;
896 if (after_wrap)
897 *after_wrap = ((index == line_index + line_def->net_length) &&
898 (line_def->ending == END_WRAP));
899 } else {
900 INT xoff = 0;
901 INT trailing;
902 if (after_wrap)
903 *after_wrap = FALSE;
904 x -= es->format_rect.left;
905 if (!x)
906 return es->x_offset;
907
908 if (!es->x_offset)
909 {
910 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
911 if (es->style & ES_RIGHT)
912 x -= indent;
913 else if (es->style & ES_CENTER)
914 x -= indent / 2;
915 }
916
917 EDIT_UpdateUniscribeData(es, NULL, 0);
918 if (es->x_offset)
919 {
920 if (es->ssa)
921 {
922 if (es->x_offset>= get_text_length(es))
923 {
924 const SIZE *size;
925 size = ScriptString_pSize(es->ssa);
926 xoff = size->cx;
927 }
928 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
929 }
930 else
931 xoff = 0;
932 }
933 if (x < 0)
934 {
935 if (x + xoff > 0 || !es->ssa)
936 {
937 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
938 if (trailing) index++;
939 }
940 else
941 index = 0;
942 }
943 else
944 {
945 if (x)
946 {
947 const SIZE *size = NULL;
948 if (es->ssa)
949 size = ScriptString_pSize(es->ssa);
950 if (!size)
951 index = 0;
952 else if (x > size->cx)
953 index = get_text_length(es);
954 else if (es->ssa)
955 {
956 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
957 if (trailing) index++;
958 }
959 else
960 index = 0;
961 }
962 else
963 index = es->x_offset;
964 }
965 }
966 return index;
967 }
968
969
970 /*********************************************************************
971 *
972 * EDIT_ConfinePoint
973 *
974 * adjusts the point to be within the formatting rectangle
975 * (so CharFromPos returns the nearest _visible_ character)
976 *
977 */
978 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
979 {
980 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
981 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
982 }
983
984
985 /*********************************************************************
986 *
987 * EM_LINEFROMCHAR
988 *
989 */
990 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
991 {
992 INT line;
993 LINEDEF *line_def;
994
995 if (!(es->style & ES_MULTILINE))
996 return 0;
997 if (index > (INT)get_text_length(es))
998 return es->line_count - 1;
999 if (index == -1)
1000 index = min(es->selection_start, es->selection_end);
1001
1002 line = 0;
1003 line_def = es->first_line_def;
1004 index -= line_def->length;
1005 while ((index >= 0) && line_def->next) {
1006 line++;
1007 line_def = line_def->next;
1008 index -= line_def->length;
1009 }
1010 return line;
1011 }
1012
1013
1014 /*********************************************************************
1015 *
1016 * EM_LINEINDEX
1017 *
1018 */
1019 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
1020 {
1021 INT line_index;
1022 const LINEDEF *line_def;
1023
1024 if (!(es->style & ES_MULTILINE))
1025 return 0;
1026 if (line >= es->line_count)
1027 return -1;
1028
1029 line_index = 0;
1030 line_def = es->first_line_def;
1031 if (line == -1) {
1032 INT index = es->selection_end - line_def->length;
1033 while ((index >= 0) && line_def->next) {
1034 line_index += line_def->length;
1035 line_def = line_def->next;
1036 index -= line_def->length;
1037 }
1038 } else {
1039 while (line > 0) {
1040 line_index += line_def->length;
1041 line_def = line_def->next;
1042 line--;
1043 }
1044 }
1045 return line_index;
1046 }
1047
1048
1049 /*********************************************************************
1050 *
1051 * EM_LINELENGTH
1052 *
1053 */
1054 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
1055 {
1056 LINEDEF *line_def;
1057
1058 if (!(es->style & ES_MULTILINE))
1059 return get_text_length(es);
1060
1061 if (index == -1) {
1062 /* get the number of remaining non-selected chars of selected lines */
1063 INT32 l; /* line number */
1064 INT32 li; /* index of first char in line */
1065 INT32 count;
1066 l = EDIT_EM_LineFromChar(es, es->selection_start);
1067 /* # chars before start of selection area */
1068 count = es->selection_start - EDIT_EM_LineIndex(es, l);
1069 l = EDIT_EM_LineFromChar(es, es->selection_end);
1070 /* # chars after end of selection */
1071 li = EDIT_EM_LineIndex(es, l);
1072 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
1073 return count;
1074 }
1075 line_def = es->first_line_def;
1076 index -= line_def->length;
1077 while ((index >= 0) && line_def->next) {
1078 line_def = line_def->next;
1079 index -= line_def->length;
1080 }
1081 return line_def->net_length;
1082 }
1083
1084
1085 /*********************************************************************
1086 *
1087 * EM_POSFROMCHAR
1088 *
1089 */
1090 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
1091 {
1092 INT len = get_text_length(es);
1093 INT l;
1094 INT li;
1095 INT x = 0;
1096 INT y = 0;
1097 INT w;
1098 INT lw;
1099 LINEDEF *line_def;
1100
1101 index = min(index, len);
1102 if (es->style & ES_MULTILINE) {
1103 l = EDIT_EM_LineFromChar(es, index);
1104 EDIT_UpdateUniscribeData(es, NULL, l);
1105
1106 y = (l - es->y_offset) * es->line_height;
1107 li = EDIT_EM_LineIndex(es, l);
1108 if (after_wrap && (li == index) && l) {
1109 INT l2 = l - 1;
1110 line_def = es->first_line_def;
1111 while (l2) {
1112 line_def = line_def->next;
1113 l2--;
1114 }
1115 if (line_def->ending == END_WRAP) {
1116 l--;
1117 y -= es->line_height;
1118 li = EDIT_EM_LineIndex(es, l);
1119 }
1120 }
1121
1122 line_def = es->first_line_def;
1123 while (line_def->index != li)
1124 line_def = line_def->next;
1125
1126 lw = line_def->width;
1127 w = es->format_rect.right - es->format_rect.left;
1128 if (line_def->ssa)
1129 {
1130 ScriptStringCPtoX(line_def->ssa, (index - 1) - li, TRUE, &x);
1131 x -= es->x_offset;
1132 }
1133 else
1134 x = es->x_offset;
1135
1136 if (es->style & ES_RIGHT)
1137 x = w - (lw - x);
1138 else if (es->style & ES_CENTER)
1139 x += (w - lw) / 2;
1140 } else {
1141 INT xoff = 0;
1142 INT xi = 0;
1143 EDIT_UpdateUniscribeData(es, NULL, 0);
1144 if (es->x_offset)
1145 {
1146 if (es->ssa)
1147 {
1148 if (es->x_offset >= get_text_length(es))
1149 {
1150 int leftover = es->x_offset - get_text_length(es);
1151 if (es->ssa)
1152 {
1153 const SIZE *size;
1154 size = ScriptString_pSize(es->ssa);
1155 xoff = size->cx;
1156 }
1157 else
1158 xoff = 0;
1159 xoff += es->char_width * leftover;
1160 }
1161 else
1162 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
1163 }
1164 else
1165 xoff = 0;
1166 }
1167 if (index)
1168 {
1169 if (index >= get_text_length(es))
1170 {
1171 if (es->ssa)
1172 {
1173 const SIZE *size;
1174 size = ScriptString_pSize(es->ssa);
1175 xi = size->cx;
1176 }
1177 else
1178 xi = 0;
1179 }
1180 else if (es->ssa)
1181 ScriptStringCPtoX(es->ssa, index, FALSE, &xi);
1182 else
1183 xi = 0;
1184 }
1185 x = xi - xoff;
1186
1187 if (index >= es->x_offset) {
1188 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
1189 {
1190 w = es->format_rect.right - es->format_rect.left;
1191 if (w > es->text_width)
1192 {
1193 if (es->style & ES_RIGHT)
1194 x += w - es->text_width;
1195 else if (es->style & ES_CENTER)
1196 x += (w - es->text_width) / 2;
1197 }
1198 }
1199 }
1200 y = 0;
1201 }
1202 x += es->format_rect.left;
1203 y += es->format_rect.top;
1204 return MAKELONG((INT16)x, (INT16)y);
1205 }
1206
1207
1208 /*********************************************************************
1209 *
1210 * EDIT_GetLineRect
1211 *
1212 * Calculates the bounding rectangle for a line from a starting
1213 * column to an ending column.
1214 *
1215 */
1216 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1217 {
1218 SCRIPT_STRING_ANALYSIS ssa;
1219 INT line_index = 0;
1220 INT pt1, pt2, pt3;
1221
1222 if (es->style & ES_MULTILINE)
1223 {
1224 const LINEDEF *line_def = NULL;
1225 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1226 if (line >= es->line_count)
1227 return;
1228
1229 line_def = es->first_line_def;
1230 if (line == -1) {
1231 INT index = es->selection_end - line_def->length;
1232 while ((index >= 0) && line_def->next) {
1233 line_index += line_def->length;
1234 line_def = line_def->next;
1235 index -= line_def->length;
1236 }
1237 } else {
1238 while (line > 0) {
1239 line_index += line_def->length;
1240 line_def = line_def->next;
1241 line--;
1242 }
1243 }
1244 ssa = line_def->ssa;
1245 }
1246 else
1247 {
1248 line_index = 0;
1249 rc->top = es->format_rect.top;
1250 ssa = es->ssa;
1251 }
1252
1253 rc->bottom = rc->top + es->line_height;
1254 pt1 = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1255 pt2 = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1256 if (ssa)
1257 {
1258 ScriptStringCPtoX(ssa, scol, FALSE, &pt3);
1259 pt3+=es->format_rect.left;
1260 }
1261 else pt3 = pt1;
1262 rc->right = max(max(pt1 , pt2),pt3);
1263 rc->left = min(min(pt1, pt2),pt3);
1264 }
1265
1266
1267 static inline void text_buffer_changed(EDITSTATE *es)
1268 {
1269 es->text_length = (UINT)-1;
1270
1271 HeapFree( GetProcessHeap(), 0, es->logAttr );
1272 es->logAttr = NULL;
1273 EDIT_InvalidateUniscribeData(es);
1274 }
1275
1276 /*********************************************************************
1277 * EDIT_LockBuffer
1278 *
1279 */
1280 static void EDIT_LockBuffer(EDITSTATE *es)
1281 {
1282 if (es->hlocapp) return;
1283
1284 if (!es->text) {
1285
1286 #ifdef __REACTOS__
1287 /* FIXME: What is this ? */
1288 CHAR *textA = NULL; // ReactOS Hacked! r45670
1289 //UINT countA = 0;
1290
1291 if(es->hloc32W)
1292 {
1293 if(es->hloc32A)
1294 {
1295 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1296 textA = LocalLock(es->hloc32A);
1297 //countA = strlen(textA) + 1;
1298 }
1299 }
1300 else {
1301 ERR("no buffer ... please report\n");
1302 return;
1303 }
1304
1305 if (textA) //// ReactOS
1306 {
1307 #else
1308 if(!es->hloc32W) return;
1309
1310 if(es->hloc32A)
1311 {
1312 CHAR *textA = LocalLock(es->hloc32A);
1313 #endif
1314 HLOCAL hloc32W_new;
1315 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
1316 if(countW_new > es->buffer_size + 1)
1317 {
1318 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1319 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1320 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1321 if(hloc32W_new)
1322 {
1323 es->hloc32W = hloc32W_new;
1324 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1325 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1326 }
1327 else
1328 WARN("FAILED! Will synchronize partially\n");
1329 }
1330 es->text = LocalLock(es->hloc32W);
1331 MultiByteToWideChar(CP_ACP, 0, textA, -1, es->text, es->buffer_size + 1);
1332 LocalUnlock(es->hloc32A);
1333 }
1334 else es->text = LocalLock(es->hloc32W);
1335 }
1336 es->lock_count++;
1337 }
1338
1339
1340 /*********************************************************************
1341 *
1342 * EDIT_UnlockBuffer
1343 *
1344 */
1345 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
1346 {
1347 if (es->hlocapp) return;
1348
1349 /* Edit window might be already destroyed */
1350 if(!IsWindow(es->hwndSelf))
1351 {
1352 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
1353 return;
1354 }
1355
1356 if (!es->lock_count) {
1357 ERR("lock_count == 0 ... please report\n");
1358 return;
1359 }
1360 if (!es->text) {
1361 ERR("es->text == 0 ... please report\n");
1362 return;
1363 }
1364
1365 if (force || (es->lock_count == 1)) {
1366 if (es->hloc32W) {
1367 UINT countA = 0;
1368 UINT countW = get_text_length(es) + 1;
1369
1370 if(es->hloc32A)
1371 {
1372 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
1373 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1374 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
1375 countA = LocalSize(es->hloc32A);
1376 if(countA_new > countA)
1377 {
1378 HLOCAL hloc32A_new;
1379 UINT alloc_size = ROUND_TO_GROW(countA_new);
1380 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
1381 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1382 if(hloc32A_new)
1383 {
1384 es->hloc32A = hloc32A_new;
1385 countA = LocalSize(hloc32A_new);
1386 TRACE("Real new size %d bytes\n", countA);
1387 }
1388 else
1389 WARN("FAILED! Will synchronize partially\n");
1390 }
1391 WideCharToMultiByte(CP_ACP, 0, es->text, countW,
1392 LocalLock(es->hloc32A), countA, NULL, NULL);
1393 LocalUnlock(es->hloc32A);
1394 }
1395
1396 LocalUnlock(es->hloc32W);
1397 es->text = NULL;
1398 }
1399 else {
1400 ERR("no buffer ... please report\n");
1401 return;
1402 }
1403 }
1404 es->lock_count--;
1405 }
1406
1407
1408 /*********************************************************************
1409 *
1410 * EDIT_MakeFit
1411 *
1412 * Try to fit size + 1 characters in the buffer.
1413 */
1414 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1415 {
1416 HLOCAL hNew32W;
1417
1418 if (size <= es->buffer_size)
1419 return TRUE;
1420
1421 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1422
1423 /* Force edit to unlock its buffer. es->text now NULL */
1424 EDIT_UnlockBuffer(es, TRUE);
1425
1426 if (es->hloc32W) {
1427 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1428 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1429 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1430 es->hloc32W = hNew32W;
1431 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1432 }
1433 }
1434
1435 EDIT_LockBuffer(es);
1436
1437 if (es->buffer_size < size) {
1438 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1439 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1440 return FALSE;
1441 } else {
1442 TRACE("We now have %d+1\n", es->buffer_size);
1443 return TRUE;
1444 }
1445 }
1446
1447
1448 /*********************************************************************
1449 *
1450 * EDIT_MakeUndoFit
1451 *
1452 * Try to fit size + 1 bytes in the undo buffer.
1453 *
1454 */
1455 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1456 {
1457 UINT alloc_size;
1458
1459 if (size <= es->undo_buffer_size)
1460 return TRUE;
1461
1462 TRACE("trying to ReAlloc to %d+1\n", size);
1463
1464 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1465 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1466 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1467 return TRUE;
1468 }
1469 else
1470 {
1471 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1472 return FALSE;
1473 }
1474 }
1475
1476
1477 /*********************************************************************
1478 *
1479 * EDIT_UpdateTextRegion
1480 *
1481 */
1482 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
1483 {
1484 if (es->flags & EF_UPDATE) {
1485 es->flags &= ~EF_UPDATE;
1486 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1487 }
1488 InvalidateRgn(es->hwndSelf, hrgn, bErase);
1489 }
1490
1491
1492 /*********************************************************************
1493 *
1494 * EDIT_UpdateText
1495 *
1496 */
1497 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
1498 {
1499 if (es->flags & EF_UPDATE) {
1500 es->flags &= ~EF_UPDATE;
1501 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1502 }
1503 InvalidateRect(es->hwndSelf, rc, bErase);
1504 }
1505
1506 /*********************************************************************
1507 *
1508 * EDIT_SL_InvalidateText
1509 *
1510 * Called from EDIT_InvalidateText().
1511 * Does the job for single-line controls only.
1512 *
1513 */
1514 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1515 {
1516 RECT line_rect;
1517 RECT rc;
1518
1519 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1520 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1521 EDIT_UpdateText(es, &rc, TRUE);
1522 }
1523
1524 /*********************************************************************
1525 *
1526 * EDIT_ML_InvalidateText
1527 *
1528 * Called from EDIT_InvalidateText().
1529 * Does the job for multi-line controls only.
1530 *
1531 */
1532 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1533 {
1534 INT vlc = get_vertical_line_count(es);
1535 INT sl = EDIT_EM_LineFromChar(es, start);
1536 INT el = EDIT_EM_LineFromChar(es, end);
1537 INT sc;
1538 INT ec;
1539 RECT rc1;
1540 RECT rcWnd;
1541 RECT rcLine;
1542 RECT rcUpdate;
1543 INT l;
1544
1545 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1546 return;
1547
1548 sc = start - EDIT_EM_LineIndex(es, sl);
1549 ec = end - EDIT_EM_LineIndex(es, el);
1550 if (sl < es->y_offset) {
1551 sl = es->y_offset;
1552 sc = 0;
1553 }
1554 if (el > es->y_offset + vlc) {
1555 el = es->y_offset + vlc;
1556 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1557 }
1558 GetClientRect(es->hwndSelf, &rc1);
1559 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1560 if (sl == el) {
1561 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1562 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1563 EDIT_UpdateText(es, &rcUpdate, TRUE);
1564 } else {
1565 EDIT_GetLineRect(es, sl, sc,
1566 EDIT_EM_LineLength(es,
1567 EDIT_EM_LineIndex(es, sl)),
1568 &rcLine);
1569 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1570 EDIT_UpdateText(es, &rcUpdate, TRUE);
1571 for (l = sl + 1 ; l < el ; l++) {
1572 EDIT_GetLineRect(es, l, 0,
1573 EDIT_EM_LineLength(es,
1574 EDIT_EM_LineIndex(es, l)),
1575 &rcLine);
1576 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1577 EDIT_UpdateText(es, &rcUpdate, TRUE);
1578 }
1579 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1580 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1581 EDIT_UpdateText(es, &rcUpdate, TRUE);
1582 }
1583 }
1584
1585
1586 /*********************************************************************
1587 *
1588 * EDIT_InvalidateText
1589 *
1590 * Invalidate the text from offset start up to, but not including,
1591 * offset end. Useful for (re)painting the selection.
1592 * Regions outside the linewidth are not invalidated.
1593 * end == -1 means end == TextLength.
1594 * start and end need not be ordered.
1595 *
1596 */
1597 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1598 {
1599 if (end == start)
1600 return;
1601
1602 if (end == -1)
1603 end = get_text_length(es);
1604
1605 if (end < start) {
1606 INT tmp = start;
1607 start = end;
1608 end = tmp;
1609 }
1610
1611 if (es->style & ES_MULTILINE)
1612 EDIT_ML_InvalidateText(es, start, end);
1613 else
1614 EDIT_SL_InvalidateText(es, start, end);
1615 }
1616
1617
1618 /*********************************************************************
1619 *
1620 * EDIT_EM_SetSel
1621 *
1622 * note: unlike the specs say: the order of start and end
1623 * _is_ preserved in Windows. (i.e. start can be > end)
1624 * In other words: this handler is OK
1625 *
1626 */
1627 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
1628 {
1629 UINT old_start = es->selection_start;
1630 UINT old_end = es->selection_end;
1631 UINT len = get_text_length(es);
1632
1633 if (start == (UINT)-1) {
1634 start = es->selection_end;
1635 end = es->selection_end;
1636 } else {
1637 start = min(start, len);
1638 end = min(end, len);
1639 }
1640 es->selection_start = start;
1641 es->selection_end = end;
1642 if (after_wrap)
1643 es->flags |= EF_AFTER_WRAP;
1644 else
1645 es->flags &= ~EF_AFTER_WRAP;
1646 /* Compute the necessary invalidation region. */
1647 /* Note that we don't need to invalidate regions which have
1648 * "never" been selected, or those which are "still" selected.
1649 * In fact, every time we hit a selection boundary, we can
1650 * *toggle* whether we need to invalidate. Thus we can optimize by
1651 * *sorting* the interval endpoints. Let's assume that we sort them
1652 * in this order:
1653 * start <= end <= old_start <= old_end
1654 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
1655 * in 5 comparisons; i.e. it is impossible to do better than the
1656 * following: */
1657 ORDER_UINT(end, old_end);
1658 ORDER_UINT(start, old_start);
1659 ORDER_UINT(old_start, old_end);
1660 ORDER_UINT(start, end);
1661 /* Note that at this point 'end' and 'old_start' are not in order, but
1662 * start is definitely the min. and old_end is definitely the max. */
1663 if (end != old_start)
1664 {
1665 /*
1666 * One can also do
1667 * ORDER_UINT32(end, old_start);
1668 * EDIT_InvalidateText(es, start, end);
1669 * EDIT_InvalidateText(es, old_start, old_end);
1670 * in place of the following if statement.
1671 * (That would complete the optimal five-comparison four-element sort.)
1672 */
1673 if (old_start > end )
1674 {
1675 EDIT_InvalidateText(es, start, end);
1676 EDIT_InvalidateText(es, old_start, old_end);
1677 }
1678 else
1679 {
1680 EDIT_InvalidateText(es, start, old_start);
1681 EDIT_InvalidateText(es, end, old_end);
1682 }
1683 }
1684 else EDIT_InvalidateText(es, start, old_end);
1685 }
1686
1687
1688 /*********************************************************************
1689 *
1690 * EDIT_UpdateScrollInfo
1691 *
1692 */
1693 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
1694 {
1695 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
1696 {
1697 SCROLLINFO si;
1698 si.cbSize = sizeof(SCROLLINFO);
1699 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1700 si.nMin = 0;
1701 si.nMax = es->line_count - 1;
1702 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1703 si.nPos = es->y_offset;
1704 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1705 si.nMin, si.nMax, si.nPage, si.nPos);
1706 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
1707 }
1708
1709 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
1710 {
1711 SCROLLINFO si;
1712 si.cbSize = sizeof(SCROLLINFO);
1713 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1714 si.nMin = 0;
1715 si.nMax = es->text_width - 1;
1716 si.nPage = es->format_rect.right - es->format_rect.left;
1717 si.nPos = es->x_offset;
1718 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1719 si.nMin, si.nMax, si.nPage, si.nPos);
1720 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
1721 }
1722 }
1723
1724
1725 /*********************************************************************
1726 *
1727 * EDIT_EM_LineScroll_internal
1728 *
1729 * Version of EDIT_EM_LineScroll for internal use.
1730 * It doesn't refuse if ES_MULTILINE is set and assumes that
1731 * dx is in pixels, dy - in lines.
1732 *
1733 */
1734 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
1735 {
1736 INT nyoff;
1737 INT x_offset_in_pixels;
1738 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
1739 es->line_height;
1740
1741 if (es->style & ES_MULTILINE)
1742 {
1743 x_offset_in_pixels = es->x_offset;
1744 }
1745 else
1746 {
1747 dy = 0;
1748 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
1749 }
1750
1751 if (-dx > x_offset_in_pixels)
1752 dx = -x_offset_in_pixels;
1753 if (dx > es->text_width - x_offset_in_pixels)
1754 dx = es->text_width - x_offset_in_pixels;
1755 nyoff = max(0, es->y_offset + dy);
1756 if (nyoff >= es->line_count - lines_per_page)
1757 nyoff = max(0, es->line_count - lines_per_page);
1758 dy = (es->y_offset - nyoff) * es->line_height;
1759 if (dx || dy) {
1760 RECT rc1;
1761 RECT rc;
1762
1763 es->y_offset = nyoff;
1764 if(es->style & ES_MULTILINE)
1765 es->x_offset += dx;
1766 else
1767 es->x_offset += dx / es->char_width;
1768
1769 GetClientRect(es->hwndSelf, &rc1);
1770 IntersectRect(&rc, &rc1, &es->format_rect);
1771 ScrollWindowEx(es->hwndSelf, -dx, dy,
1772 NULL, &rc, NULL, NULL, SW_INVALIDATE);
1773 /* force scroll info update */
1774 EDIT_UpdateScrollInfo(es);
1775 }
1776 if (dx && !(es->flags & EF_HSCROLL_TRACK))
1777 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
1778 if (dy && !(es->flags & EF_VSCROLL_TRACK))
1779 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
1780 return TRUE;
1781 }
1782
1783 /*********************************************************************
1784 *
1785 * EM_LINESCROLL
1786 *
1787 * NOTE: dx is in average character widths, dy - in lines;
1788 *
1789 */
1790 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
1791 {
1792 if (!(es->style & ES_MULTILINE))
1793 return FALSE;
1794
1795 dx *= es->char_width;
1796 return EDIT_EM_LineScroll_internal(es, dx, dy);
1797 }
1798
1799
1800 /*********************************************************************
1801 *
1802 * EM_SCROLL
1803 *
1804 */
1805 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
1806 {
1807 INT dy;
1808
1809 if (!(es->style & ES_MULTILINE))
1810 return (LRESULT)FALSE;
1811
1812 dy = 0;
1813
1814 switch (action) {
1815 case SB_LINEUP:
1816 if (es->y_offset)
1817 dy = -1;
1818 break;
1819 case SB_LINEDOWN:
1820 if (es->y_offset < es->line_count - 1)
1821 dy = 1;
1822 break;
1823 case SB_PAGEUP:
1824 if (es->y_offset)
1825 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
1826 break;
1827 case SB_PAGEDOWN:
1828 if (es->y_offset < es->line_count - 1)
1829 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1830 break;
1831 default:
1832 return (LRESULT)FALSE;
1833 }
1834 if (dy) {
1835 INT vlc = get_vertical_line_count(es);
1836 /* check if we are going to move too far */
1837 if(es->y_offset + dy > es->line_count - vlc)
1838 dy = max(es->line_count - vlc, 0) - es->y_offset;
1839
1840 /* Notification is done in EDIT_EM_LineScroll */
1841 if(dy) {
1842 EDIT_EM_LineScroll(es, 0, dy);
1843 return MAKELONG(dy, TRUE);
1844 }
1845
1846 }
1847 return (LRESULT)FALSE;
1848 }
1849
1850
1851 /*********************************************************************
1852 *
1853 * EDIT_SetCaretPos
1854 *
1855 */
1856 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
1857 BOOL after_wrap)
1858 {
1859 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
1860 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
1861 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
1862 }
1863
1864
1865 /*********************************************************************
1866 *
1867 * EM_SCROLLCARET
1868 *
1869 */
1870 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
1871 {
1872 if (es->style & ES_MULTILINE) {
1873 INT l;
1874 INT vlc;
1875 INT ww;
1876 INT cw = es->char_width;
1877 INT x;
1878 INT dy = 0;
1879 INT dx = 0;
1880
1881 l = EDIT_EM_LineFromChar(es, es->selection_end);
1882 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
1883 vlc = get_vertical_line_count(es);
1884 if (l >= es->y_offset + vlc)
1885 dy = l - vlc + 1 - es->y_offset;
1886 if (l < es->y_offset)
1887 dy = l - es->y_offset;
1888 ww = es->format_rect.right - es->format_rect.left;
1889 if (x < es->format_rect.left)
1890 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
1891 if (x > es->format_rect.right)
1892 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
1893 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1894 {
1895 /* check if we are going to move too far */
1896 if(es->x_offset + dx + ww > es->text_width)
1897 dx = es->text_width - ww - es->x_offset;
1898 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1899 EDIT_EM_LineScroll_internal(es, dx, dy);
1900 }
1901 } else {
1902 INT x;
1903 INT goal;
1904 INT format_width;
1905
1906 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1907 format_width = es->format_rect.right - es->format_rect.left;
1908 if (x < es->format_rect.left) {
1909 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
1910 do {
1911 es->x_offset--;
1912 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1913 } while ((x < goal) && es->x_offset);
1914 /* FIXME: use ScrollWindow() somehow to improve performance */
1915 EDIT_UpdateText(es, NULL, TRUE);
1916 } else if (x > es->format_rect.right) {
1917 INT x_last;
1918 INT len = get_text_length(es);
1919 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
1920 do {
1921 es->x_offset++;
1922 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1923 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
1924 } while ((x > goal) && (x_last > es->format_rect.right));
1925 /* FIXME: use ScrollWindow() somehow to improve performance */
1926 EDIT_UpdateText(es, NULL, TRUE);
1927 }
1928 }
1929
1930 if(es->flags & EF_FOCUSED)
1931 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
1932 }
1933
1934
1935 /*********************************************************************
1936 *
1937 * EDIT_MoveBackward
1938 *
1939 */
1940 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1941 {
1942 INT e = es->selection_end;
1943
1944 if (e) {
1945 e--;
1946 if ((es->style & ES_MULTILINE) && e &&
1947 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1948 e--;
1949 if (e && (es->text[e - 1] == '\r'))
1950 e--;
1951 }
1952 }
1953 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1954 EDIT_EM_ScrollCaret(es);
1955 }
1956
1957
1958 /*********************************************************************
1959 *
1960 * EDIT_MoveDown_ML
1961 *
1962 * Only for multi line controls
1963 * Move the caret one line down, on a column with the nearest
1964 * x coordinate on the screen (might be a different column).
1965 *
1966 */
1967 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1968 {
1969 INT s = es->selection_start;
1970 INT e = es->selection_end;
1971 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1972 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1973 INT x = (short)LOWORD(pos);
1974 INT y = (short)HIWORD(pos);
1975
1976 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1977 if (!extend)
1978 s = e;
1979 EDIT_EM_SetSel(es, s, e, after_wrap);
1980 EDIT_EM_ScrollCaret(es);
1981 }
1982
1983
1984 /*********************************************************************
1985 *
1986 * EDIT_MoveEnd
1987 *
1988 */
1989 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
1990 {
1991 BOOL after_wrap = FALSE;
1992 INT e;
1993
1994 /* Pass a high value in x to make sure of receiving the end of the line */
1995 if (!ctrl && (es->style & ES_MULTILINE))
1996 e = EDIT_CharFromPos(es, 0x3fffffff,
1997 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1998 else
1999 e = get_text_length(es);
2000 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2001 EDIT_EM_ScrollCaret(es);
2002 }
2003
2004
2005 /*********************************************************************
2006 *
2007 * EDIT_MoveForward
2008 *
2009 */
2010 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2011 {
2012 INT e = es->selection_end;
2013
2014 if (es->text[e]) {
2015 e++;
2016 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2017 if (es->text[e] == '\n')
2018 e++;
2019 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2020 e += 2;
2021 }
2022 }
2023 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2024 EDIT_EM_ScrollCaret(es);
2025 }
2026
2027
2028 /*********************************************************************
2029 *
2030 * EDIT_MoveHome
2031 *
2032 * Home key: move to beginning of line.
2033 *
2034 */
2035 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2036 {
2037 INT e;
2038
2039 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2040 if (!ctrl && (es->style & ES_MULTILINE))
2041 e = EDIT_CharFromPos(es, -es->x_offset,
2042 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2043 else
2044 e = 0;
2045 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2046 EDIT_EM_ScrollCaret(es);
2047 }
2048
2049
2050 /*********************************************************************
2051 *
2052 * EDIT_MovePageDown_ML
2053 *
2054 * Only for multi line controls
2055 * Move the caret one page down, on a column with the nearest
2056 * x coordinate on the screen (might be a different column).
2057 *
2058 */
2059 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2060 {
2061 INT s = es->selection_start;
2062 INT e = es->selection_end;
2063 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2064 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2065 INT x = (short)LOWORD(pos);
2066 INT y = (short)HIWORD(pos);
2067
2068 e = EDIT_CharFromPos(es, x,
2069 y + (es->format_rect.bottom - es->format_rect.top),
2070 &after_wrap);
2071 if (!extend)
2072 s = e;
2073 EDIT_EM_SetSel(es, s, e, after_wrap);
2074 EDIT_EM_ScrollCaret(es);
2075 }
2076
2077
2078 /*********************************************************************
2079 *
2080 * EDIT_MovePageUp_ML
2081 *
2082 * Only for multi line controls
2083 * Move the caret one page up, on a column with the nearest
2084 * x coordinate on the screen (might be a different column).
2085 *
2086 */
2087 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2088 {
2089 INT s = es->selection_start;
2090 INT e = es->selection_end;
2091 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2092 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2093 INT x = (short)LOWORD(pos);
2094 INT y = (short)HIWORD(pos);
2095
2096 e = EDIT_CharFromPos(es, x,
2097 y - (es->format_rect.bottom - es->format_rect.top),
2098 &after_wrap);
2099 if (!extend)
2100 s = e;
2101 EDIT_EM_SetSel(es, s, e, after_wrap);
2102 EDIT_EM_ScrollCaret(es);
2103 }
2104
2105
2106 /*********************************************************************
2107 *
2108 * EDIT_MoveUp_ML
2109 *
2110 * Only for multi line controls
2111 * Move the caret one line up, on a column with the nearest
2112 * x coordinate on the screen (might be a different column).
2113 *
2114 */
2115 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2116 {
2117 INT s = es->selection_start;
2118 INT e = es->selection_end;
2119 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2120 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2121 INT x = (short)LOWORD(pos);
2122 INT y = (short)HIWORD(pos);
2123
2124 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2125 if (!extend)
2126 s = e;
2127 EDIT_EM_SetSel(es, s, e, after_wrap);
2128 EDIT_EM_ScrollCaret(es);
2129 }
2130
2131
2132 /*********************************************************************
2133 *
2134 * EDIT_MoveWordBackward
2135 *
2136 */
2137 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2138 {
2139 INT s = es->selection_start;
2140 INT e = es->selection_end;
2141 INT l;
2142 INT ll;
2143 INT li;
2144
2145 l = EDIT_EM_LineFromChar(es, e);
2146 ll = EDIT_EM_LineLength(es, e);
2147 li = EDIT_EM_LineIndex(es, l);
2148 if (e - li == 0) {
2149 if (l) {
2150 li = EDIT_EM_LineIndex(es, l - 1);
2151 e = li + EDIT_EM_LineLength(es, li);
2152 }
2153 } else {
2154 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2155 }
2156 if (!extend)
2157 s = e;
2158 EDIT_EM_SetSel(es, s, e, FALSE);
2159 EDIT_EM_ScrollCaret(es);
2160 }
2161
2162
2163 /*********************************************************************
2164 *
2165 * EDIT_MoveWordForward
2166 *
2167 */
2168 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2169 {
2170 INT s = es->selection_start;
2171 INT e = es->selection_end;
2172 INT l;
2173 INT ll;
2174 INT li;
2175
2176 l = EDIT_EM_LineFromChar(es, e);
2177 ll = EDIT_EM_LineLength(es, e);
2178 li = EDIT_EM_LineIndex(es, l);
2179 if (e - li == ll) {
2180 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2181 e = EDIT_EM_LineIndex(es, l + 1);
2182 } else {
2183 e = li + EDIT_CallWordBreakProc(es,
2184 li, e - li + 1, ll, WB_RIGHT);
2185 }
2186 if (!extend)
2187 s = e;
2188 EDIT_EM_SetSel(es, s, e, FALSE);
2189 EDIT_EM_ScrollCaret(es);
2190 }
2191
2192
2193 /*********************************************************************
2194 *
2195 * EDIT_PaintText
2196 *
2197 */
2198 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2199 {
2200 COLORREF BkColor;
2201 COLORREF TextColor;
2202 LOGFONTW underline_font;
2203 HFONT hUnderline = 0;
2204 HFONT old_font = 0;
2205 INT ret;
2206 INT li;
2207 INT BkMode;
2208 SIZE size;
2209
2210 if (!count)
2211 return 0;
2212 BkMode = GetBkMode(dc);
2213 BkColor = GetBkColor(dc);
2214 TextColor = GetTextColor(dc);
2215 if (rev) {
2216 if (es->composition_len == 0)
2217 {
2218 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2219 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2220 SetBkMode( dc, OPAQUE);
2221 }
2222 else
2223 {
2224 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2225 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2226 underline_font.lfUnderline = TRUE;
2227 hUnderline = CreateFontIndirectW(&underline_font);
2228 old_font = SelectObject(dc,hUnderline);
2229 }
2230 }
2231 li = EDIT_EM_LineIndex(es, line);
2232 if (es->style & ES_MULTILINE) {
2233 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2234 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2235 } else {
2236 TextOutW(dc, x, y, es->text + li + col, count);
2237 GetTextExtentPoint32W(dc, es->text + li + col, count, &size);
2238 ret = size.cx;
2239 }
2240 if (rev) {
2241 if (es->composition_len == 0)
2242 {
2243 SetBkColor(dc, BkColor);
2244 SetTextColor(dc, TextColor);
2245 SetBkMode( dc, BkMode);
2246 }
2247 else
2248 {
2249 if (old_font)
2250 SelectObject(dc,old_font);
2251 if (hUnderline)
2252 DeleteObject(hUnderline);
2253 }
2254 }
2255 return ret;
2256 }
2257
2258
2259 /*********************************************************************
2260 *
2261 * EDIT_PaintLine
2262 *
2263 */
2264 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2265 {
2266 INT s = 0;
2267 INT e = 0;
2268 INT li = 0;
2269 INT ll = 0;
2270 INT x;
2271 INT y;
2272 LRESULT pos;
2273 SCRIPT_STRING_ANALYSIS ssa;
2274
2275 if (es->style & ES_MULTILINE) {
2276 INT vlc = get_vertical_line_count(es);
2277
2278 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2279 return;
2280 } else if (line)
2281 return;
2282
2283 TRACE("line=%d\n", line);
2284
2285 ssa = EDIT_UpdateUniscribeData(es, dc, line);
2286 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2287 x = (short)LOWORD(pos);
2288 y = (short)HIWORD(pos);
2289
2290 if (es->style & ES_MULTILINE)
2291 {
2292 int line_idx = line;
2293 x = -es->x_offset;
2294 if (es->style & ES_RIGHT || es->style & ES_CENTER)
2295 {
2296 LINEDEF *line_def = es->first_line_def;
2297 int w, lw;
2298
2299 while (line_def && line_idx)
2300 {
2301 line_def = line_def->next;
2302 line_idx--;
2303 }
2304 w = es->format_rect.right - es->format_rect.left;
2305 lw = line_def->width;
2306
2307 if (es->style & ES_RIGHT)
2308 x = w - (lw - x);
2309 else if (es->style & ES_CENTER)
2310 x += (w - lw) / 2;
2311 }
2312 x += es->format_rect.left;
2313 }
2314
2315 if (rev)
2316 {
2317 li = EDIT_EM_LineIndex(es, line);
2318 ll = EDIT_EM_LineLength(es, li);
2319 s = min(es->selection_start, es->selection_end);
2320 e = max(es->selection_start, es->selection_end);
2321 s = min(li + ll, max(li, s));
2322 e = min(li + ll, max(li, e));
2323 }
2324
2325 if (ssa)
2326 ScriptStringOut(ssa, x, y, 0, &es->format_rect, s - li, e - li, FALSE);
2327 else if (rev && (s != e) &&
2328 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2329 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2330 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2331 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2332 } else
2333 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2334 }
2335
2336
2337 /*********************************************************************
2338 *
2339 * EDIT_AdjustFormatRect
2340 *
2341 * Adjusts the format rectangle for the current font and the
2342 * current client rectangle.
2343 *
2344 */
2345 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2346 {
2347 RECT ClientRect;
2348
2349 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2350 if (es->style & ES_MULTILINE)
2351 {
2352 INT fw, vlc, max_x_offset, max_y_offset;
2353
2354 vlc = get_vertical_line_count(es);
2355 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2356
2357 /* correct es->x_offset */
2358 fw = es->format_rect.right - es->format_rect.left;
2359 max_x_offset = es->text_width - fw;
2360 if(max_x_offset < 0) max_x_offset = 0;
2361 if(es->x_offset > max_x_offset)
2362 es->x_offset = max_x_offset;
2363
2364 /* correct es->y_offset */
2365 max_y_offset = es->line_count - vlc;
2366 if(max_y_offset < 0) max_y_offset = 0;
2367 if(es->y_offset > max_y_offset)
2368 es->y_offset = max_y_offset;
2369
2370 /* force scroll info update */
2371 EDIT_UpdateScrollInfo(es);
2372 }
2373 else
2374 /* Windows doesn't care to fix text placement for SL controls */
2375 es->format_rect.bottom = es->format_rect.top + es->line_height;
2376
2377 /* Always stay within the client area */
2378 GetClientRect(es->hwndSelf, &ClientRect);
2379 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2380
2381 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2382 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2383
2384 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2385 }
2386
2387
2388 /*********************************************************************
2389 *
2390 * EDIT_SetRectNP
2391 *
2392 * note: this is not (exactly) the handler called on EM_SETRECTNP
2393 * it is also used to set the rect of a single line control
2394 *
2395 */
2396 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2397 {
2398 LONG_PTR ExStyle;
2399 INT bw, bh;
2400 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2401
2402 CopyRect(&es->format_rect, rc);
2403
2404 if (ExStyle & WS_EX_CLIENTEDGE) {
2405 es->format_rect.left++;
2406 es->format_rect.right--;
2407
2408 if (es->format_rect.bottom - es->format_rect.top
2409 >= es->line_height + 2)
2410 {
2411 es->format_rect.top++;
2412 es->format_rect.bottom--;
2413 }
2414 }
2415 else if (es->style & WS_BORDER) {
2416 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2417 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2418 es->format_rect.left += bw;
2419 es->format_rect.right -= bw;
2420 if (es->format_rect.bottom - es->format_rect.top
2421 >= es->line_height + 2 * bh)
2422 {
2423 es->format_rect.top += bh;
2424 es->format_rect.bottom -= bh;
2425 }
2426 }
2427
2428 es->format_rect.left += es->left_margin;
2429 es->format_rect.right -= es->right_margin;
2430 EDIT_AdjustFormatRect(es);
2431 }
2432
2433
2434 /*********************************************************************
2435 *
2436 * EM_CHARFROMPOS
2437 *
2438 * returns line number (not index) in high-order word of result.
2439 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2440 * to Richedit, not to the edit control. Original documentation is valid.
2441 * FIXME: do the specs mean to return -1 if outside client area or
2442 * if outside formatting rectangle ???
2443 *
2444 */
2445 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2446 {
2447 POINT pt;
2448 RECT rc;
2449 INT index;
2450
2451 pt.x = x;
2452 pt.y = y;
2453 GetClientRect(es->hwndSelf, &rc);
2454 if (!PtInRect(&rc, pt))
2455 return -1;
2456
2457 index = EDIT_CharFromPos(es, x, y, NULL);
2458 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2459 }
2460
2461
2462 /*********************************************************************
2463 *
2464 * EM_FMTLINES
2465 *
2466 * Enable or disable soft breaks.
2467 *
2468 * This means: insert or remove the soft linebreak character (\r\r\n).
2469 * Take care to check if the text still fits the buffer after insertion.
2470 * If not, notify with EN_ERRSPACE.
2471 *
2472 */
2473 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2474 {
2475 es->flags &= ~EF_USE_SOFTBRK;
2476 if (add_eol) {
2477 es->flags |= EF_USE_SOFTBRK;
2478 FIXME("soft break enabled, not implemented\n");
2479 }
2480 return add_eol;
2481 }
2482
2483
2484 /*********************************************************************
2485 *
2486 * EM_GETHANDLE
2487 *
2488 * Hopefully this won't fire back at us.
2489 * We always start with a fixed buffer in the local heap.
2490 * Despite of the documentation says that the local heap is used
2491 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2492 * buffer on the local heap.
2493 *
2494 */
2495 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2496 {
2497 HLOCAL hLocal;
2498
2499 if (!(es->style & ES_MULTILINE))
2500 return 0;
2501
2502 if(es->is_unicode)
2503 hLocal = es->hloc32W;
2504 else
2505 {
2506 if(!es->hloc32A)
2507 {
2508 CHAR *textA;
2509 UINT countA, alloc_size;
2510 TRACE("Allocating 32-bit ANSI alias buffer\n");
2511 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2512 alloc_size = ROUND_TO_GROW(countA);
2513 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2514 {
2515 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2516 return 0;
2517 }
2518 textA = LocalLock(es->hloc32A);
2519 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2520 LocalUnlock(es->hloc32A);
2521 }
2522 hLocal = es->hloc32A;
2523 }
2524
2525 EDIT_UnlockBuffer(es, TRUE);
2526
2527 /* The text buffer handle belongs to the app */
2528 es->hlocapp = hLocal;
2529
2530 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2531 return hLocal;
2532 }
2533
2534
2535 /*********************************************************************
2536 *
2537 * EM_GETLINE
2538 *
2539 */
2540 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2541 {
2542 LPWSTR src;
2543 INT line_len, dst_len;
2544 INT i;
2545
2546 if (es->style & ES_MULTILINE) {
2547 if (line >= es->line_count)
2548 return 0;
2549 } else
2550 line = 0;
2551 i = EDIT_EM_LineIndex(es, line);
2552 src = es->text + i;
2553 line_len = EDIT_EM_LineLength(es, i);
2554 dst_len = *(WORD *)dst;
2555 if(unicode)
2556 {
2557 if(dst_len <= line_len)
2558 {
2559 memcpy(dst, src, dst_len * sizeof(WCHAR));
2560 return dst_len;
2561 }
2562 else /* Append 0 if enough space */
2563 {
2564 memcpy(dst, src, line_len * sizeof(WCHAR));
2565 dst[line_len] = 0;
2566 return line_len;
2567 }
2568 }
2569 else
2570 {
2571 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2572 if(!ret && line_len) /* Insufficient buffer size */
2573 return dst_len;
2574 if(ret < dst_len) /* Append 0 if enough space */
2575 ((LPSTR)dst)[ret] = 0;
2576 return ret;
2577 }
2578 }
2579
2580
2581 /*********************************************************************
2582 *
2583 * EM_GETSEL
2584 *
2585 */
2586 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2587 {
2588 UINT s = es->selection_start;
2589 UINT e = es->selection_end;
2590
2591 ORDER_UINT(s, e);
2592 if (start)
2593 *start = s;
2594 if (end)
2595 *end = e;
2596 return MAKELONG(s, e);
2597 }
2598
2599
2600 /*********************************************************************
2601 *
2602 * EM_REPLACESEL
2603 *
2604 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2605 *
2606 */
2607 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2608 {
2609 UINT strl = strlenW(lpsz_replace);
2610 UINT tl = get_text_length(es);
2611 UINT utl;
2612 UINT s;
2613 UINT e;
2614 UINT i;
2615 UINT size;
2616 LPWSTR p;
2617 HRGN hrgn = 0;
2618 LPWSTR buf = NULL;
2619 UINT bufl;
2620
2621 TRACE("%s, can_undo %d, send_update %d\n",
2622 debugstr_w(lpsz_replace), can_undo, send_update);
2623
2624 s = es->selection_start;
2625 e = es->selection_end;
2626
2627 EDIT_InvalidateUniscribeData(es);
2628 if ((s == e) && !strl)
2629 return;
2630
2631 ORDER_UINT(s, e);
2632
2633 size = tl - (e - s) + strl;
2634 if (!size)
2635 es->text_width = 0;
2636
2637 /* Issue the EN_MAXTEXT notification and continue with replacing text
2638 * so that buffer limit is honored. */
2639 if ((honor_limit) && (size > es->buffer_limit)) {
2640 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2641 /* Buffer limit can be smaller than the actual length of text in combobox */
2642 if (es->buffer_limit < (tl - (e-s)))
2643 strl = 0;
2644 else
2645 strl = min(strl, es->buffer_limit - (tl - (e-s)));
2646 }
2647
2648 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2649 return;
2650
2651 if (e != s) {
2652 /* there is something to be deleted */
2653 TRACE("deleting stuff.\n");
2654 bufl = e - s;
2655 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
2656 if (!buf) return;
2657 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
2658 buf[bufl] = 0; /* ensure 0 termination */
2659 /* now delete */
2660 strcpyW(es->text + s, es->text + e);
2661 text_buffer_changed(es);
2662 }
2663 if (strl) {
2664 /* there is an insertion */
2665 tl = get_text_length(es);
2666 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));
2667 for (p = es->text + tl ; p >= es->text + s ; p--)
2668 p[strl] = p[0];
2669 for (i = 0 , p = es->text + s ; i < strl ; i++)
2670 p[i] = lpsz_replace[i];
2671 if(es->style & ES_UPPERCASE)
2672 CharUpperBuffW(p, strl);
2673 else if(es->style & ES_LOWERCASE)
2674 CharLowerBuffW(p, strl);
2675 text_buffer_changed(es);
2676 }
2677 if (es->style & ES_MULTILINE)
2678 {
2679 INT st = min(es->selection_start, es->selection_end);
2680 INT vlc = get_vertical_line_count(es);
2681
2682 hrgn = CreateRectRgn(0, 0, 0, 0);
2683 EDIT_BuildLineDefs_ML(es, st, st + strl,
2684 strl - abs(es->selection_end - es->selection_start), hrgn);
2685 /* if text is too long undo all changes */
2686 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
2687 if (strl)
2688 strcpyW(es->text + e, es->text + e + strl);
2689 if (e != s)
2690 for (i = 0 , p = es->text ; i < e - s ; i++)
2691 p[i + s] = buf[i];
2692 text_buffer_changed(es);
2693 EDIT_BuildLineDefs_ML(es, s, e,
2694 abs(es->selection_end - es->selection_start) - strl, hrgn);
2695 strl = 0;
2696 e = s;
2697 hrgn = CreateRectRgn(0, 0, 0, 0);
2698 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2699 }
2700 }
2701 else {
2702 INT fw = es->format_rect.right - es->format_rect.left;
2703 EDIT_InvalidateUniscribeData(es);
2704 EDIT_CalcLineWidth_SL(es);
2705 /* remove chars that don't fit */
2706 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
2707 while ((es->text_width > fw) && s + strl >= s) {
2708 strcpyW(es->text + s + strl - 1, es->text + s + strl);
2709 strl--;
2710 es->text_length = -1;
2711 EDIT_InvalidateUniscribeData(es);
2712 EDIT_CalcLineWidth_SL(es);
2713 }
2714 text_buffer_changed(es);
2715 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2716 }
2717 }
2718
2719 if (e != s) {
2720 if (can_undo) {
2721 utl = strlenW(es->undo_text);
2722 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2723 /* undo-buffer is extended to the right */
2724 EDIT_MakeUndoFit(es, utl + e - s);
2725 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
2726 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2727 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2728 /* undo-buffer is extended to the left */
2729 EDIT_MakeUndoFit(es, utl + e - s);
2730 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2731 p[e - s] = p[0];
2732 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2733 p[i] = buf[i];
2734 es->undo_position = s;
2735 } else {
2736 /* new undo-buffer */
2737 EDIT_MakeUndoFit(es, e - s);
2738 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
2739 es->undo_text[e - s] = 0; /* ensure 0 termination */
2740 es->undo_position = s;
2741 }
2742 /* any deletion makes the old insertion-undo invalid */
2743 es->undo_insert_count = 0;
2744 } else
2745 EDIT_EM_EmptyUndoBuffer(es);
2746 }
2747 if (strl) {
2748 if (can_undo) {
2749 if ((s == es->undo_position) ||
2750 ((es->undo_insert_count) &&
2751 (s == es->undo_position + es->undo_insert_count)))
2752 /*
2753 * insertion is new and at delete position or
2754 * an extension to either left or right
2755 */
2756 es->undo_insert_count += strl;
2757 else {
2758 /* new insertion undo */
2759 es->undo_position = s;
2760 es->undo_insert_count = strl;
2761 /* new insertion makes old delete-buffer invalid */
2762 *es->undo_text = '\0';
2763 }
2764 } else
2765 EDIT_EM_EmptyUndoBuffer(es);
2766 }
2767
2768 HeapFree(GetProcessHeap(), 0, buf);
2769
2770 s += strl;
2771
2772 /* If text has been deleted and we're right or center aligned then scroll rightward */
2773 if (es->style & (ES_RIGHT | ES_CENTER))
2774 {
2775 INT delta = strl - abs(es->selection_end - es->selection_start);
2776
2777 if (delta < 0 && es->x_offset)
2778 {
2779 if (abs(delta) > es->x_offset)
2780 es->x_offset = 0;
2781 else
2782 es->x_offset += delta;
2783 }
2784 }
2785
2786 EDIT_EM_SetSel(es, s, s, FALSE);
2787 es->flags |= EF_MODIFIED;
2788 if (send_update) es->flags |= EF_UPDATE;
2789 if (hrgn)
2790 {
2791 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2792 DeleteObject(hrgn);
2793 }
2794 else
2795 EDIT_UpdateText(es, NULL, TRUE);
2796
2797 EDIT_EM_ScrollCaret(es);
2798
2799 /* force scroll info update */
2800 EDIT_UpdateScrollInfo(es);
2801
2802
2803 if(send_update || (es->flags & EF_UPDATE))
2804 {
2805 es->flags &= ~EF_UPDATE;
2806 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2807 }
2808 EDIT_InvalidateUniscribeData(es);
2809 }
2810
2811
2812 /*********************************************************************
2813 *
2814 * EM_SETHANDLE
2815 *
2816 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2817 *
2818 */
2819 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
2820 {
2821 if (!(es->style & ES_MULTILINE))
2822 return;
2823
2824 if (!hloc) {
2825 WARN("called with NULL handle\n");
2826 return;
2827 }
2828
2829 EDIT_UnlockBuffer(es, TRUE);
2830
2831 if(es->is_unicode)
2832 {
2833 if(es->hloc32A)
2834 {
2835 LocalFree(es->hloc32A);
2836 es->hloc32A = NULL;
2837 }
2838 es->hloc32W = hloc;
2839 }
2840 else
2841 {
2842 INT countW, countA;
2843 HLOCAL hloc32W_new;
2844 WCHAR *textW;
2845 CHAR *textA;
2846
2847 countA = LocalSize(hloc);
2848 textA = LocalLock(hloc);
2849 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
2850 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
2851 {
2852 ERR("Could not allocate new unicode buffer\n");
2853 return;
2854 }
2855 textW = LocalLock(hloc32W_new);
2856 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
2857 LocalUnlock(hloc32W_new);
2858 LocalUnlock(hloc);
2859
2860 if(es->hloc32W)
2861 LocalFree(es->hloc32W);
2862
2863 es->hloc32W = hloc32W_new;
2864 es->hloc32A = hloc;
2865 }
2866
2867 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
2868
2869 /* The text buffer handle belongs to the control */
2870 es->hlocapp = NULL;
2871
2872 EDIT_LockBuffer(es);
2873 text_buffer_changed(es);
2874
2875 es->x_offset = es->y_offset = 0;
2876 es->selection_start = es->selection_end = 0;
2877 EDIT_EM_EmptyUndoBuffer(es);
2878 es->flags &= ~EF_MODIFIED;
2879 es->flags &= ~EF_UPDATE;
2880 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2881 EDIT_UpdateText(es, NULL, TRUE);
2882 EDIT_EM_ScrollCaret(es);
2883 /* force scroll info update */
2884 EDIT_UpdateScrollInfo(es);
2885 }
2886
2887
2888 /*********************************************************************
2889 *
2890 * EM_SETLIMITTEXT
2891 *
2892 * NOTE: this version currently implements WinNT limits
2893 *
2894 */
2895 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
2896 {
2897 if (!limit) limit = ~0u;
2898 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
2899 es->buffer_limit = limit;
2900 }
2901
2902
2903 /*********************************************************************
2904 *
2905 * EM_SETMARGINS
2906 *
2907 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2908 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
2909 * margin according to the textmetrics of the current font.
2910 *
2911 * When EC_USEFONTINFO is used in the non_cjk case the margins only
2912 * change if the edit control is equal to or larger than a certain
2913 * size. Though there is an exception for the empty client rect case
2914 * with small font sizes.
2915 */
2916 static BOOL is_cjk(UINT charset)
2917 {
2918 switch(charset)
2919 {
2920 case SHIFTJIS_CHARSET:
2921 case HANGUL_CHARSET:
2922 case GB2312_CHARSET:
2923 case CHINESEBIG5_CHARSET:
2924 return TRUE;
2925 }
2926 /* HANGUL_CHARSET is strange, though treated as CJK by Win 8, it is
2927 * not by other versions including Win 10. */
2928 return FALSE;
2929 }
2930
2931 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
2932 WORD left, WORD right, BOOL repaint)
2933 {
2934 TEXTMETRICW tm;
2935 INT default_left_margin = 0; /* in pixels */
2936 INT default_right_margin = 0; /* in pixels */
2937
2938 /* Set the default margins depending on the font */
2939 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
2940 HDC dc = GetDC(es->hwndSelf);
2941 HFONT old_font = SelectObject(dc, es->font);
2942 LONG width = GdiGetCharDimensions(dc, &tm, NULL);
2943 RECT rc;
2944
2945 /* The default margins are only non zero for TrueType or Vector fonts */
2946 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
2947 if (!is_cjk(tm.tmCharSet)) {
2948 default_left_margin = width / 2;
2949 default_right_margin = width / 2;
2950
2951 GetClientRect(es->hwndSelf, &rc);
2952 if (rc.right - rc.left < (width / 2 + width) * 2 &&
2953 (width >= 28 || !IsRectEmpty(&rc)) ) {
2954 default_left_margin = es->left_margin;
2955 default_right_margin = es->right_margin;
2956 }
2957 } else {
2958 /* FIXME: figure out the CJK values. They are not affected by the client rect. */
2959 default_left_margin = width / 2;
2960 default_right_margin = width / 2;
2961 }
2962 }
2963 SelectObject(dc, old_font);
2964 ReleaseDC(es->hwndSelf, dc);
2965 }
2966
2967 if (action & EC_LEFTMARGIN) {
2968 es->format_rect.left -= es->left_margin;
2969 if (left != EC_USEFONTINFO)
2970 es->left_margin = left;
2971 else
2972 es->left_margin = default_left_margin;
2973 es->format_rect.left += es->left_margin;
2974 }
2975
2976 if (action & EC_RIGHTMARGIN) {
2977 es->format_rect.right += es->right_margin;
2978 if (right != EC_USEFONTINFO)
2979 es->right_margin = right;
2980 else
2981 es->right_margin = default_right_margin;
2982 es->format_rect.right -= es->right_margin;
2983 }
2984
2985 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
2986 EDIT_AdjustFormatRect(es);
2987 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
2988 }
2989
2990 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
2991 }
2992
2993
2994 /*********************************************************************
2995 *
2996 * EM_SETPASSWORDCHAR
2997 *
2998 */
2999 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3000 {
3001 LONG style;
3002
3003 if (es->style & ES_MULTILINE)
3004 return;
3005
3006 if (es->password_char == c)
3007 return;
3008
3009 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3010 es->password_char = c;
3011 if (c) {
3012 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3013 es->style |= ES_PASSWORD;
3014 } else {
3015 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3016 es->style &= ~ES_PASSWORD;
3017 }
3018 EDIT_InvalidateUniscribeData(es);
3019 EDIT_UpdateText(es, NULL, TRUE);
3020 }
3021
3022
3023 /*********************************************************************
3024 *
3025 * EM_SETTABSTOPS
3026 *
3027 */
3028 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3029 {
3030 if (!(es->style & ES_MULTILINE))
3031 return FALSE;
3032 HeapFree(GetProcessHeap(), 0, es->tabs);
3033 es->tabs_count = count;
3034 if (!count)
3035 es->tabs = NULL;
3036 else {
3037 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3038 #ifdef __REACTOS__
3039 /* ReactOS r33503 */
3040 if (es->tabs == NULL)
3041 {
3042 es->tabs_count = 0;
3043 return FALSE;
3044 }
3045 #endif
3046 memcpy(es->tabs, tabs, count * sizeof(INT));
3047 }
3048 EDIT_InvalidateUniscribeData(es);
3049 return TRUE;
3050 }
3051
3052
3053 /*********************************************************************
3054 *
3055 * EM_SETWORDBREAKPROC
3056 *
3057 */
3058 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3059 {
3060 if (es->word_break_proc == wbp)
3061 return;
3062
3063 es->word_break_proc = wbp;
3064
3065 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3066 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3067 EDIT_UpdateText(es, NULL, TRUE);
3068 }
3069 }
3070
3071
3072 /*********************************************************************
3073 *
3074 * EM_UNDO / WM_UNDO
3075 *
3076 */
3077 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3078 {
3079 INT ulength;
3080 LPWSTR utext;
3081
3082 /* As per MSDN spec, for a single-line edit control,
3083 the return value is always TRUE */
3084 if( es->style & ES_READONLY )
3085 return !(es->style & ES_MULTILINE);
3086
3087 ulength = strlenW(es->undo_text);
3088
3089 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3090 #ifdef __REACTOS__
3091 /* ReactOS r33503 */
3092 if (utext == NULL)
3093 return FALSE;
3094 #endif
3095
3096 strcpyW(utext, es->undo_text);
3097
3098 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3099 es->undo_insert_count, debugstr_w(utext));
3100
3101 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3102 EDIT_EM_EmptyUndoBuffer(es);
3103 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3104 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3105 /* send the notification after the selection start and end are set */
3106 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3107 EDIT_EM_ScrollCaret(es);
3108 HeapFree(GetProcessHeap(), 0, utext);
3109
3110 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3111 es->undo_insert_count, debugstr_w(es->undo_text));
3112 return TRUE;
3113 }
3114
3115
3116 /* Helper function for WM_CHAR
3117 *
3118 * According to an MSDN blog article titled "Just because you're a control
3119 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3120 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3121 * a dialog box or not.
3122 */
3123 static inline BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3124 {
3125 return (es->flags & EF_DIALOGMODE);
3126 }
3127
3128
3129 /*********************************************************************
3130 *
3131 * WM_PASTE
3132 *
3133 */
3134 static void EDIT_WM_Paste(EDITSTATE *es)
3135 {
3136 HGLOBAL hsrc;
3137 LPWSTR src;
3138
3139 /* Protect read-only edit control from modification */
3140 if(es->style & ES_READONLY)
3141 return;
3142
3143 OpenClipboard(es->hwndSelf);
3144 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
3145 src = GlobalLock(hsrc);
3146 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
3147 GlobalUnlock(hsrc);
3148 }
3149 else if (es->style & ES_PASSWORD) {
3150 /* clear selected text in password edit box even with empty clipboard */
3151 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
3152 }
3153 CloseClipboard();
3154 }
3155
3156
3157 /*********************************************************************
3158 *
3159 * WM_COPY
3160 *
3161 */
3162 static void EDIT_WM_Copy(EDITSTATE *es)
3163 {
3164 INT s = min(es->selection_start, es->selection_end);
3165 INT e = max(es->selection_start, es->selection_end);
3166 HGLOBAL hdst;
3167 LPWSTR dst;
3168 DWORD len;
3169
3170 if (e == s) return;
3171
3172 len = e - s;
3173 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
3174 dst = GlobalLock(hdst);
3175 memcpy(dst, es->text + s, len * sizeof(WCHAR));
3176 dst[len] = 0; /* ensure 0 termination */
3177 TRACE("%s\n", debugstr_w(dst));
3178 GlobalUnlock(hdst);
3179 OpenClipboard(es->hwndSelf);
3180 EmptyClipboard();
3181 SetClipboardData(CF_UNICODETEXT, hdst);
3182 CloseClipboard();
3183 }
3184
3185
3186 /*********************************************************************
3187 *
3188 * WM_CLEAR
3189 *
3190 */
3191 static inline void EDIT_WM_Clear(EDITSTATE *es)
3192 {
3193 /* Protect read-only edit control from modification */
3194 if(es->style & ES_READONLY)
3195 return;
3196
3197 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
3198 }
3199
3200
3201 /*********************************************************************
3202 *
3203 * WM_CUT
3204 *
3205 */
3206 static inline void EDIT_WM_Cut(EDITSTATE *es)
3207 {
3208 EDIT_WM_Copy(es);
3209 EDIT_WM_Clear(es);
3210 }
3211
3212
3213 /*********************************************************************
3214 *
3215 * WM_CHAR
3216 *
3217 */
3218 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3219 {
3220 BOOL control;
3221
3222 control = GetKeyState(VK_CONTROL) & 0x8000;
3223
3224 switch (c) {
3225 case '\r':
3226 /* If it's not a multiline edit box, it would be ignored below.
3227 * For multiline edit without ES_WANTRETURN, we have to make a
3228 * special case.
3229 */
3230 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3231 if (EDIT_IsInsideDialog(es))
3232 break;
3233 case '\n':
3234 if (es->style & ES_MULTILINE) {
3235 if (es->style & ES_READONLY) {
3236 EDIT_MoveHome(es, FALSE, FALSE);
3237 EDIT_MoveDown_ML(es, FALSE);
3238 } else {
3239 static const WCHAR cr_lfW[] = {'\r','\n',0};
3240 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3241 }
3242 }
3243 break;
3244 case '\t':
3245 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3246 {
3247 static const WCHAR tabW[] = {'\t',0};
3248 if (EDIT_IsInsideDialog(es))
3249 break;
3250 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3251 }
3252 break;
3253 case VK_BACK:
3254 if (!(es->style & ES_READONLY) && !control) {
3255 if (es->selection_start != es->selection_end)
3256 EDIT_WM_Clear(es);
3257 else {
3258 /* delete character left of caret */
3259 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3260 EDIT_MoveBackward(es, TRUE);
3261 EDIT_WM_Clear(es);
3262 }
3263 }
3264 break;
3265 case 0x03: /* ^C */
3266 if (!(es->style & ES_PASSWORD))
3267 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3268 break;
3269 case 0x16: /* ^V */
3270 if (!(es->style & ES_READONLY))
3271 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3272 break;
3273 case 0x18: /* ^X */
3274 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
3275 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3276 break;
3277 case 0x1A: /* ^Z */
3278 if (!(es->style & ES_READONLY))
3279 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3280 break;
3281
3282 default:
3283 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3284 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3285 break;
3286
3287 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3288 WCHAR str[2];
3289 str[0] = c;
3290 str[1] = '\0';
3291 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3292 }
3293 break;
3294 }
3295 return 1;
3296 }
3297
3298
3299 /*********************************************************************
3300 *
3301 * EDIT_ContextMenuCommand
3302 *
3303 */
3304 static void EDIT_ContextMenuCommand(EDITSTATE *es, UINT id)
3305 {
3306 switch (id) {
3307 case EM_UNDO:
3308 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3309 break;
3310 case WM_CUT:
3311 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3312 break;
3313 case WM_COPY:
3314 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3315 break;
3316 case WM_PASTE:
3317 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3318 break;
3319 case WM_CLEAR:
3320 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
3321 break;
3322 case EM_SETSEL:
3323 SendMessageW(es->hwndSelf, EM_SETSEL, 0, -1);
3324 break;
3325 default:
3326 ERR("unknown menu item, please report\n");
3327 break;
3328 }
3329 }
3330
3331
3332 /*********************************************************************
3333 *
3334 * WM_CONTEXTMENU
3335 *
3336 * Note: the resource files resource/sysres_??.rc cannot define a
3337 * single popup menu. Hence we use a (dummy) menubar
3338 * containing the single popup menu as its first item.
3339 *
3340 * FIXME: the message identifiers have been chosen arbitrarily,
3341 * hence we use MF_BYPOSITION.
3342 * We might as well use the "real" values (anybody knows ?)
3343 * The menu definition is in resources/sysres_??.rc.
3344 * Once these are OK, we better use MF_BYCOMMAND here
3345 * (as we do in EDIT_WM_Command()).
3346 *
3347 */
3348 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3349 {
3350 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3351 HMENU popup = GetSubMenu(menu, 0);
3352 UINT start = es->selection_start;
3353 UINT end = es->selection_end;
3354 UINT cmd;
3355
3356 ORDER_UINT(start, end);
3357
3358 /* undo */
3359 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3360 /* cut */
3361 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3362 /* copy */
3363 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3364 /* paste */
3365 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3366 /* delete */
3367 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3368 /* select all */
3369 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
3370
3371 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
3372 {
3373 RECT rc;
3374 /* Windows places the menu at the edit's center in this case */
3375 #ifdef __REACTOS__
3376 /* ReactOS r55202 */
3377 GetClientRect(es->hwndSelf, &rc);
3378 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
3379 #else
3380 WIN_GetRectangles( es->hwndSelf, COORDS_SCREEN, NULL, &rc );
3381 #endif
3382 x = rc.left + (rc.right - rc.left) / 2;
3383 y = rc.top + (rc.bottom - rc.top) / 2;
3384 }
3385
3386 if (!(es->flags & EF_FOCUSED))
3387 SetFocus(es->hwndSelf);
3388
3389 cmd = TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD | TPM_NONOTIFY,
3390 x, y, 0, es->hwndSelf, NULL);
3391
3392 if (cmd)
3393 EDIT_ContextMenuCommand(es, cmd);
3394
3395 DestroyMenu(menu);
3396 }
3397
3398
3399 /*********************************************************************
3400 *
3401 * WM_GETTEXT
3402 *
3403 */
3404 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
3405 {
3406 if(!count) return 0;
3407
3408 if(unicode)
3409 {
3410 lstrcpynW(dst, es->text, count);
3411 return strlenW(dst);
3412 }
3413 else
3414 {
3415 LPSTR textA = (LPSTR)dst;
3416 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3417 textA[count - 1] = 0; /* ensure 0 termination */
3418 return strlen(textA);
3419 }
3420 }
3421
3422 /*********************************************************************
3423 *
3424 * EDIT_CheckCombo
3425 *
3426 */
3427 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3428 {
3429 HWND hLBox = es->hwndListBox;
3430 HWND hCombo;
3431 BOOL bDropped;
3432 int nEUI;
3433
3434 if (!hLBox)
3435 return FALSE;
3436
3437 hCombo = GetParent(es->hwndSelf);
3438 bDropped = TRUE;
3439 nEUI = 0;
3440
3441 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3442
3443 if (key == VK_UP || key == VK_DOWN)
3444 {
3445 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3446 nEUI = 1;
3447
3448 if (msg == WM_KEYDOWN || nEUI)
3449 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3450 }
3451
3452 switch (msg)
3453 {
3454 case WM_KEYDOWN:
3455 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3456 {
3457 /* make sure ComboLBox pops up */
3458 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
3459 key = VK_F4;
3460 nEUI = 2;
3461 }
3462
3463 SendMessageW(hLBox, WM_KEYDOWN, key, 0);
3464 break;
3465
3466 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3467 if (nEUI)
3468 SendMessageW(hCombo, CB_SHOWDROPDOWN, !bDropped, 0);
3469 else
3470 SendMessageW(hLBox, WM_KEYDOWN, VK_F4, 0);
3471 break;
3472 }
3473
3474 if(nEUI == 2)
3475 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
3476
3477 return TRUE;
3478 }
3479
3480
3481 /*********************************************************************
3482 *
3483 * WM_KEYDOWN
3484 *
3485 * Handling of special keys that don't produce a WM_CHAR
3486 * (i.e. non-printable keys) & Backspace & Delete
3487 *
3488 */
3489 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
3490 {
3491 BOOL shift;
3492 BOOL control;
3493
3494 if (GetKeyState(VK_MENU) & 0x8000)
3495 return 0;
3496
3497 shift = GetKeyState(VK_SHIFT) & 0x8000;
3498 control = GetKeyState(VK_CONTROL) & 0x8000;
3499
3500 switch (key) {
3501 case VK_F4:
3502 case VK_UP:
3503 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
3504 break;
3505
3506 /* fall through */
3507 case VK_LEFT:
3508 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3509 EDIT_MoveUp_ML(es, shift);
3510 else
3511 if (control)
3512 EDIT_MoveWordBackward(es, shift);
3513 else
3514 EDIT_MoveBackward(es, shift);
3515 break;
3516 case VK_DOWN:
3517 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
3518 break;
3519 /* fall through */
3520 case VK_RIGHT:
3521 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3522 EDIT_MoveDown_ML(es, shift);
3523 else if (control)
3524 EDIT_MoveWordForward(es, shift);
3525 else
3526 EDIT_MoveForward(es, shift);
3527 break;
3528 case VK_HOME:
3529 EDIT_MoveHome(es, shift, control);
3530 break;
3531 case VK_END:
3532 EDIT_MoveEnd(es, shift, control);
3533 break;
3534 case VK_PRIOR:
3535 if (es->style & ES_MULTILINE)
3536 EDIT_MovePageUp_ML(es, shift);
3537 else
3538 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3539 break;
3540 case VK_NEXT:
3541 if (es->style & ES_MULTILINE)
3542 EDIT_MovePageDown_ML(es, shift);
3543 else
3544 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3545 break;
3546 case VK_DELETE:
3547 if (!(es->style & ES_READONLY) && !(shift && control)) {
3548 if (es->selection_start != es->selection_end) {
3549 if (shift)
3550 EDIT_WM_Cut(es);
3551 else
3552 EDIT_WM_Clear(es);
3553 } else {
3554 if (shift) {
3555 /* delete character left of caret */
3556 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3557 EDIT_MoveBackward(es, TRUE);
3558 EDIT_WM_Clear(es);
3559 } else if (control) {
3560 /* delete to end of line */
3561 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3562 EDIT_MoveEnd(es, TRUE, FALSE);
3563 EDIT_WM_Clear(es);
3564 } else {
3565 /* delete character right of caret */
3566 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3567 EDIT_MoveForward(es, TRUE);
3568 EDIT_WM_Clear(es);
3569 }
3570 }
3571 }
3572 break;
3573 case VK_INSERT:
3574 if (shift) {
3575 if (!(es->style & ES_READONLY))
3576 EDIT_WM_Paste(es);
3577 } else if (control)
3578 EDIT_WM_Copy(es);
3579 break;
3580 case VK_RETURN:
3581 /* If the edit doesn't want the return send a message to the default object */
3582 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
3583 {
3584 DWORD dw;
3585
3586 if (!EDIT_IsInsideDialog(es)) break;
3587 if (control) break;
3588 dw = SendMessageW(es->hwndParent, DM_GETDEFID, 0, 0);
3589 if (HIWORD(dw) == DC_HASDEFID)
3590 {
3591 HWND hwDefCtrl = GetDlgItem(es->hwndParent, LOWORD(dw));
3592 if (hwDefCtrl)
3593 {
3594 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, TRUE);
3595 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
3596 }
3597 }
3598 }
3599 break;
3600 case VK_ESCAPE:
3601 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3602 PostMessageW(es->hwndParent, WM_CLOSE, 0, 0);
3603 break;
3604 case VK_TAB:
3605 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3606 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
3607 break;
3608 #ifdef __REACTOS__
3609 /* ReactOS CORE-1419 */
3610 case VK_BACK:
3611 if (control)
3612 {
3613 FIXME("Ctrl+Backspace\n");
3614 }
3615 break;
3616 #endif
3617 }
3618 return TRUE;
3619 }
3620
3621
3622 /*********************************************************************
3623 *
3624 * WM_KILLFOCUS
3625 *
3626 */
3627 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
3628 {
3629 HWND hCombo;
3630 LONG lStyles;
3631
3632 es->flags &= ~EF_FOCUSED;
3633 DestroyCaret();
3634 if(!(es->style & ES_NOHIDESEL))
3635 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3636
3637 /* throw away left over scroll when we lose focus */
3638 es->wheelDeltaRemainder = 0;
3639
3640 if (es->hwndListBox == NULL)
3641 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
3642 else
3643 { /* send the undocumented WM_CBLOSTTEXTFOCUS message to combobox */
3644 hCombo = GetParent(es->hwndSelf);
3645 lStyles = GetWindowLong(hCombo, GWL_STYLE);
3646 if ((lStyles & CBS_DROPDOWN) || (lStyles & CBS_SIMPLE))
3647 SendMessage(hCombo, WM_CBLOSTTEXTFOCUS, 0, 0);
3648 }
3649
3650 return 0;
3651 }
3652
3653
3654 /*********************************************************************
3655 *
3656 * WM_LBUTTONDBLCLK
3657 *
3658 * The caret position has been set on the WM_LBUTTONDOWN message
3659 *
3660 */
3661 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
3662 {
3663 INT s;
3664 INT e = es->selection_end;
3665 INT l;
3666 INT li;
3667 INT ll;
3668
3669 es->bCaptureState = TRUE;
3670 SetCapture(es->hwndSelf);
3671
3672 l = EDIT_EM_LineFromChar(es, e);
3673 li = EDIT_EM_LineIndex(es, l);
3674 ll = EDIT_EM_LineLength(es, e);
3675 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
3676 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
3677 EDIT_EM_SetSel(es, s, e, FALSE);
3678 EDIT_EM_ScrollCaret(es);
3679 es->region_posx = es->region_posy = 0;
3680 SetTimer(es->hwndSelf, 0, 100, NULL);
3681 return 0;
3682 }
3683
3684
3685 /*********************************************************************
3686 *
3687 * WM_LBUTTONDOWN
3688 *
3689 */
3690 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
3691 {
3692 INT e;
3693 BOOL after_wrap;
3694
3695 es->bCaptureState = TRUE;
3696 SetCapture(es->hwndSelf);
3697 EDIT_ConfinePoint(es, &x, &y);
3698 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3699 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3700 EDIT_EM_ScrollCaret(es);
3701 es->region_posx = es->region_posy = 0;
3702 SetTimer(es->hwndSelf, 0, 100, NULL);
3703
3704 if (!(es->flags & EF_FOCUSED))
3705 SetFocus(es->hwndSelf);
3706
3707 return 0;
3708 }
3709
3710
3711 /*********************************************************************
3712 *
3713 * WM_LBUTTONUP
3714 *
3715 */
3716 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
3717 {
3718 if (es->bCaptureState) {
3719 KillTimer(es->hwndSelf, 0);
3720 if (GetCapture() == es->hwndSelf) ReleaseCapture();
3721 }
3722 es->bCaptureState = FALSE;
3723 return 0;
3724 }
3725
3726
3727 /*********************************************************************
3728 *
3729 * WM_MBUTTONDOWN
3730 *
3731 */
3732 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
3733 {
3734 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3735 return 0;
3736 }
3737
3738
3739 /*********************************************************************
3740 *
3741 * WM_MOUSEMOVE
3742 *
3743 */
3744 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
3745 {
3746 INT e;
3747 BOOL after_wrap;
3748 INT prex, prey;
3749
3750 /* If the mouse has been captured by process other than the edit control itself,
3751 * the windows edit controls will not select the strings with mouse move.
3752 */
3753 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
3754 return 0;
3755
3756 /*
3757 * FIXME: gotta do some scrolling if outside client
3758 * area. Maybe reset the timer ?
3759 */
3760 prex = x; prey = y;
3761 EDIT_ConfinePoint(es, &x, &y);
3762 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3763 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3764 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3765 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
3766 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
3767 return 0;
3768 }
3769
3770
3771 /*********************************************************************
3772 *
3773 * WM_PAINT
3774 *
3775 */
3776 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
3777 {
3778 PAINTSTRUCT ps;
3779 INT i;
3780 HDC dc;
3781 HFONT old_font = 0;
3782 RECT rc;
3783 RECT rcClient;
3784 RECT rcLine;
3785 RECT rcRgn;
3786 HBRUSH brush;
3787 HBRUSH old_brush;
3788 INT bw, bh;
3789 BOOL rev = es->bEnableState &&
3790 ((es->flags & EF_FOCUSED) ||
3791 (es->style & ES_NOHIDESEL));
3792 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
3793
3794 /* The dc we use for calculating may not be the one we paint into.
3795 This is the safest action. */
3796 EDIT_InvalidateUniscribeData(es);
3797 GetClientRect(es->hwndSelf, &rcClient);
3798
3799 /* get the background brush */
3800 brush = EDIT_NotifyCtlColor(es, dc);
3801
3802 /* paint the border and the background */
3803 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
3804
3805 if(es->style & WS_BORDER) {
3806 bw = GetSystemMetrics(SM_CXBORDER);
3807 bh = GetSystemMetrics(SM_CYBORDER);
3808 rc = rcClient;
3809 if(es->style & ES_MULTILINE) {
3810 if(es->style & WS_HSCROLL) rc.bottom+=bh;
3811 if(es->style & WS_VSCROLL) rc.right+=bw;
3812 }
3813
3814 /* Draw the frame. Same code as in nonclient.c */
3815 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
3816 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
3817 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
3818 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
3819 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
3820 SelectObject(dc, old_brush);
3821
3822 /* Keep the border clean */
3823 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
3824 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
3825 }
3826
3827 GetClipBox(dc, &rc);
3828 FillRect(dc, &rc, brush);
3829
3830 IntersectClipRect(dc, es->format_rect.left,
3831 es->format_rect.top,
3832 es->format_rect.right,
3833 es->format_rect.bottom);
3834 if (es->style & ES_MULTILINE) {
3835 rc = rcClient;
3836 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3837 }
3838 if (es->font)
3839 old_font = SelectObject(dc, es->font);
3840
3841 if (!es->bEnableState)
3842 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
3843 GetClipBox(dc, &rcRgn);
3844 if (es->style & ES_MULTILINE) {
3845 INT vlc = get_vertical_line_count(es);
3846 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3847 EDIT_UpdateUniscribeData(es, dc, i);
3848 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
3849 if (IntersectRect(&rc, &rcRgn, &rcLine))
3850 EDIT_PaintLine(es, dc, i, rev);
3851 }
3852 } else {
3853 EDIT_UpdateUniscribeData(es, dc, 0);
3854 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
3855 if (IntersectRect(&rc, &rcRgn, &rcLine))
3856 EDIT_PaintLine(es, dc, 0, rev);
3857 }
3858 if (es->font)
3859 SelectObject(dc, old_font);
3860
3861 if (!hdc)
3862 EndPaint(es->hwndSelf, &ps);
3863 }
3864
3865
3866 /*********************************************************************
3867 *
3868 * WM_SETFOCUS
3869 *
3870 */
3871 static void EDIT_WM_SetFocus(EDITSTATE *es)
3872 {
3873 es->flags |= EF_FOCUSED;
3874
3875 if (!(es->style & ES_NOHIDESEL))
3876 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3877
3878 /* single line edit updates itself */
3879 if (IsWindowVisible(es->hwndSelf) && !(es->style & ES_MULTILINE))
3880 {
3881 HDC hdc = GetDC(es->hwndSelf);
3882 EDIT_WM_Paint(es, hdc);
3883 ReleaseDC(es->hwndSelf, hdc);
3884 }
3885
3886 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3887 EDIT_SetCaretPos(es, es->selection_end,
3888 es->flags & EF_AFTER_WRAP);
3889 ShowCaret(es->hwndSelf);
3890 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
3891 }
3892
3893
3894 /*********************************************************************
3895 *
3896 * WM_SETFONT
3897 *
3898 * With Win95 look the margins are set to default font value unless
3899 * the system font (font == 0) is being set, in which case they are left
3900 * unchanged.
3901 *
3902 */
3903 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
3904 {
3905 TEXTMETRICW tm;
3906 HDC dc;
3907 HFONT old_font = 0;
3908 RECT clientRect;
3909
3910 es->font = font;
3911 EDIT_InvalidateUniscribeData(es);
3912 dc = GetDC(es->hwndSelf);
3913 if (font)
3914 old_font = SelectObject(dc, font);
3915 GetTextMetricsW(dc, &tm);
3916 es->line_height = tm.tmHeight;
3917 es->char_width = tm.tmAveCharWidth;
3918 if (font)
3919 SelectObject(dc, old_font);
3920 ReleaseDC(es->hwndSelf, dc);
3921
3922 /* Reset the format rect and the margins */
3923 GetClientRect(es->hwndSelf, &clientRect);
3924 EDIT_SetRectNP(es, &clientRect);
3925 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3926 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
3927
3928 if (es->style & ES_MULTILINE)
3929 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3930 else
3931 EDIT_CalcLineWidth_SL(es);
3932
3933 if (redraw)
3934 EDIT_UpdateText(es, NULL, TRUE);
3935 if (es->flags & EF_FOCUSED) {
3936 DestroyCaret();
3937 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3938 EDIT_SetCaretPos(es, es->selection_end,
3939 es->flags & EF_AFTER_WRAP);
3940 ShowCaret(es->hwndSelf);
3941 }
3942 }
3943
3944
3945 /*********************************************************************
3946 *
3947 * WM_SETTEXT
3948 *
3949 * NOTES
3950 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3951 * The modified flag is reset. No notifications are sent.
3952 *
3953 * For single-line controls, reception of WM_SETTEXT triggers:
3954 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3955 *
3956 */
3957 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
3958 {
3959 LPWSTR textW = NULL;
3960 if (!unicode && text)
3961 {
3962 LPCSTR textA = (LPCSTR)text;
3963 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
3964 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
3965 if (textW)
3966 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
3967 text = textW;
3968 }
3969
3970 if (es->flags & EF_UPDATE)
3971 /* fixed this bug once; complain if we see it about to happen again. */
3972 ERR("SetSel may generate UPDATE message whose handler may reset "
3973 "selection.\n");
3974
3975 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3976 if (text)
3977 {
3978 TRACE("%s\n", debugstr_w(text));
3979 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
3980 if(!unicode)
3981 HeapFree(GetProcessHeap(), 0, textW);
3982 }
3983 else
3984 {
3985 TRACE("<NULL>\n");
3986 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
3987 }
3988 es->x_offset = 0;
3989 es->flags &= ~EF_MODIFIED;
3990 EDIT_EM_SetSel(es, 0, 0, FALSE);
3991
3992 /* Send the notification after the selection start and end have been set
3993 * edit control doesn't send notification on WM_SETTEXT
3994 * if it is multiline, or it is part of combobox
3995 */
3996 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
3997 {
3998 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
3999 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4000 }
4001 EDIT_EM_ScrollCaret(es);
4002 EDIT_UpdateScrollInfo(es);
4003 EDIT_InvalidateUniscribeData(es);
4004 }
4005
4006
4007 /*********************************************************************
4008 *
4009 * WM_SIZE
4010 *
4011 */
4012 static void EDIT_WM_Size(EDITSTATE *es, UINT action)
4013 {
4014 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4015 RECT rc;
4016 GetClientRect(es->hwndSelf, &rc);
4017 EDIT_SetRectNP(es, &rc);
4018 EDIT_UpdateText(es, NULL, TRUE);
4019 }
4020 }
4021
4022
4023 /*********************************************************************
4024 *
4025 * WM_STYLECHANGED
4026 *
4027 * This message is sent by SetWindowLong on having changed either the Style
4028 * or the extended style.
4029 *
4030 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4031 *
4032 * See also EDIT_WM_NCCreate
4033 *
4034 * It appears that the Windows version of the edit control allows the style
4035 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4036 * style variable which will generally be different. In this function we
4037 * update the internal style based on what changed in the externally visible
4038 * style.
4039 *
4040 * Much of this content as based upon the MSDN, especially:
4041 * Platform SDK Documentation -> User Interface Services ->
4042 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4043 * Edit Control Styles
4044 */
4045 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4046 {
4047 if (GWL_STYLE == which) {
4048 DWORD style_change_mask;
4049 DWORD new_style;
4050 /* Only a subset of changes can be applied after the control
4051 * has been created.
4052 */
4053 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4054 ES_NUMBER;
4055 if (es->style & ES_MULTILINE)
4056 style_change_mask |= ES_WANTRETURN;
4057
4058 new_style = style->styleNew & style_change_mask;
4059
4060 /* Number overrides lowercase overrides uppercase (at least it
4061 * does in Win95). However I'll bet that ES_NUMBER would be
4062 * invalid under Win 3.1.
4063 */
4064 if (new_style & ES_NUMBER) {
4065 ; /* do not override the ES_NUMBER */
4066 } else if (new_style & ES_LOWERCASE) {
4067 new_style &= ~ES_UPPERCASE;
4068 }
4069
4070 es->style = (es->style & ~style_change_mask) | new_style;
4071 } else if (GWL_EXSTYLE == which) {
4072 ; /* FIXME - what is needed here */
4073 } else {
4074 WARN ("Invalid style change %ld\n",which);
4075 }
4076
4077 return 0;
4078 }
4079
4080 /*********************************************************************
4081 *
4082 * WM_SYSKEYDOWN
4083 *
4084 */
4085 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4086 {
4087 if ((key == VK_BACK) && (key_data & 0x2000)) {
4088 if (EDIT_EM_CanUndo(es))
4089 EDIT_EM_Undo(es);
4090 return 0;
4091 } else if (key == VK_UP || key == VK_DOWN) {
4092 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4093 return 0;
4094 }
4095 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, key, key_data);
4096 }
4097
4098
4099 /*********************************************************************
4100 *
4101 * WM_TIMER
4102 *
4103 */
4104 static void EDIT_WM_Timer(EDITSTATE *es)
4105 {
4106 if (es->region_posx < 0) {
4107 EDIT_MoveBackward(es, TRUE);
4108 } else if (es->region_posx > 0) {
4109 EDIT_MoveForward(es, TRUE);
4110 }
4111 /*
4112 * FIXME: gotta do some vertical scrolling here, like
4113 * EDIT_EM_LineScroll(hwnd, 0, 1);
4114 */
4115 }
4116
4117 /*********************************************************************
4118 *
4119 * WM_HSCROLL
4120 *
4121 */
4122 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4123 {
4124 INT dx;
4125 INT fw;
4126
4127 if (!(es->style & ES_MULTILINE))
4128 return 0;
4129
4130 if (!(es->style & ES_AUTOHSCROLL))
4131 return 0;
4132
4133 dx = 0;
4134 fw = es->format_rect.right - es->format_rect.left;
4135 switch (action) {
4136 case SB_LINELEFT:
4137 TRACE("SB_LINELEFT\n");
4138 if (es->x_offset)
4139 dx = -es->char_width;
4140 break;
4141 case SB_LINERIGHT:
4142 TRACE("SB_LINERIGHT\n");
4143 if (es->x_offset < es->text_width)
4144 dx = es->char_width;
4145 break;
4146 case SB_PAGELEFT:
4147 TRACE("SB_PAGELEFT\n");
4148 if (es->x_offset)
4149 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4150 break;
4151 case SB_PAGERIGHT:
4152 TRACE("SB_PAGERIGHT\n");
4153 if (es->x_offset < es->text_width)
4154 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4155 break;
4156 case SB_LEFT:
4157 TRACE("SB_LEFT\n");
4158 if (es->x_offset)
4159 dx = -es->x_offset;
4160 break;
4161 case SB_RIGHT:
4162 TRACE("SB_RIGHT\n");
4163 if (es->x_offset < es->text_width)
4164 dx = es->text_width - es->x_offset;
4165 break;
4166 case SB_THUMBTRACK:
4167 TRACE("SB_THUMBTRACK %d\n", pos);
4168 es->flags |= EF_HSCROLL_TRACK;
4169 if(es->style & WS_HSCROLL)
4170 dx = pos - es->x_offset;
4171 else
4172 {
4173 INT fw, new_x;
4174 /* Sanity check */
4175 if(pos < 0 || pos > 100) return 0;
4176 /* Assume default scroll range 0-100 */
4177 fw = es->format_rect.right - es->format_rect.left;
4178 new_x = pos * (es->text_width - fw) / 100;
4179 dx = es->text_width ? (new_x - es->x_offset) : 0;
4180 }
4181 break;
4182 case SB_THUMBPOSITION:
4183 TRACE("SB_THUMBPOSITION %d\n", pos);
4184 es->flags &= ~EF_HSCROLL_TRACK;
4185 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4186 dx = pos - es->x_offset;
4187 else
4188 {
4189 INT fw, new_x;
4190 /* Sanity check */
4191 if(pos < 0 || pos > 100) return 0;
4192 /* Assume default scroll range 0-100 */
4193 fw = es->format_rect.right - es->format_rect.left;
4194 new_x = pos * (es->text_width - fw) / 100;
4195 dx = es->text_width ? (new_x - es->x_offset) : 0;
4196 }
4197 if (!dx) {
4198 /* force scroll info update */
4199 EDIT_UpdateScrollInfo(es);
4200 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4201 }
4202 break;
4203 case SB_ENDSCROLL:
4204 TRACE("SB_ENDSCROLL\n");
4205 break;
4206 /*
4207 * FIXME : the next two are undocumented !
4208 * Are we doing the right thing ?
4209 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4210 * although it's also a regular control message.
4211 */
4212 case EM_GETTHUMB: /* this one is used by NT notepad */
4213 {
4214 LRESULT ret;
4215 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4216 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4217 else
4218 {
4219 /* Assume default scroll range 0-100 */
4220 INT fw = es->format_rect.right - es->format_rect.left;
4221 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4222 }
4223 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4224 return ret;
4225 }
4226 case EM_LINESCROLL:
4227 TRACE("EM_LINESCROLL16\n");
4228 dx = pos;
4229 break;
4230
4231 default:
4232 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4233 action, action);
4234 return 0;
4235 }
4236 if (dx)
4237 {
4238 INT fw = es->format_rect.right - es->format_rect.left;
4239 /* check if we are going to move too far */
4240 if(es->x_offset + dx + fw > es->text_width)
4241 dx = es->text_width - fw - es->x_offset;
4242 if(dx)
4243 EDIT_EM_LineScroll_internal(es, dx, 0);
4244 }
4245 return 0;
4246 }
4247
4248
4249 /*********************************************************************
4250 *
4251 * WM_VSCROLL
4252 *
4253 */
4254 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4255 {
4256 INT dy;
4257
4258 if (!(es->style & ES_MULTILINE))
4259 return 0;
4260
4261 if (!(es->style & ES_AUTOVSCROLL))
4262 return 0;
4263
4264 dy = 0;
4265 switch (action) {
4266 case SB_LINEUP:
4267 case SB_LINEDOWN:
4268 case SB_PAGEUP:
4269 case SB_PAGEDOWN:
4270 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4271 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4272 (action == SB_PAGEUP ? "SB_PAGEUP" :
4273 "SB_PAGEDOWN"))));
4274 EDIT_EM_Scroll(es, action);
4275 return 0;
4276 case SB_TOP:
4277 TRACE("SB_TOP\n");
4278 dy = -es->y_offset;
4279 break;
4280 case SB_BOTTOM:
4281 TRACE("SB_BOTTOM\n");
4282 dy = es->line_count - 1 - es->y_offset;
4283 break;
4284 case SB_THUMBTRACK:
4285 TRACE("SB_THUMBTRACK %d\n", pos);
4286 es->flags |= EF_VSCROLL_TRACK;
4287 if(es->style & WS_VSCROLL)
4288 dy = pos - es->y_offset;
4289 else
4290 {
4291 /* Assume default scroll range 0-100 */
4292 INT vlc, new_y;
4293 /* Sanity check */
4294 if(pos < 0 || pos > 100) return 0;
4295 vlc = get_vertical_line_count(es);
4296 new_y = pos * (es->line_count - vlc) / 100;
4297 dy = es->line_count ? (new_y - es->y_offset) : 0;
4298 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4299 es->line_count, es->y_offset, pos, dy);
4300 }
4301 break;
4302 case SB_THUMBPOSITION:
4303 TRACE("SB_THUMBPOSITION %d\n", pos);
4304 es->flags &= ~EF_VSCROLL_TRACK;
4305 if(es->style & WS_VSCROLL)
4306 dy = pos - es->y_offset;
4307 else
4308 {
4309 /* Assume default scroll range 0-100 */
4310 INT vlc, new_y;
4311 /* Sanity check */
4312 if(pos < 0 || pos > 100) return 0;
4313 vlc = get_vertical_line_count(es);
4314 new_y = pos * (es->line_count - vlc) / 100;
4315 dy = es->line_count ? (new_y - es->y_offset) : 0;
4316 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4317 es->line_count, es->y_offset, pos, dy);
4318 }
4319 if (!dy)
4320 {
4321 /* force scroll info update */
4322 EDIT_UpdateScrollInfo(es);
4323 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
4324 }
4325 break;
4326 case SB_ENDSCROLL:
4327 TRACE("SB_ENDSCROLL\n");
4328 break;
4329 /*
4330 * FIXME : the next two are undocumented !
4331 * Are we doing the right thing ?
4332 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4333 * although it's also a regular control message.
4334 */
4335 case EM_GETTHUMB: /* this one is used by NT notepad */
4336 {
4337 LRESULT ret;
4338 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4339 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4340 else
4341 {
4342 /* Assume default scroll range 0-100 */
4343 INT vlc = get_vertical_line_count(es);
4344 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4345 }
4346 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4347 return ret;
4348 }
4349 case EM_LINESCROLL:
4350 TRACE("EM_LINESCROLL %d\n", pos);
4351 dy = pos;
4352 break;
4353
4354 default:
4355 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4356 action, action);
4357 return 0;
4358 }
4359 if (dy)
4360 EDIT_EM_LineScroll(es, 0, dy);
4361 return 0;
4362 }
4363
4364 /*********************************************************************
4365 *
4366 * EM_GETTHUMB
4367 *
4368 * FIXME: is this right ? (or should it be only VSCROLL)
4369 * (and maybe only for edit controls that really have their
4370 * own scrollbars) (and maybe only for multiline controls ?)
4371 * All in all: very poorly documented
4372 *
4373 */
4374 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
4375 {
4376 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB, 0),
4377 EDIT_WM_HScroll(es, EM_GETTHUMB, 0));
4378 }
4379
4380
4381 /********************************************************************
4382 *
4383 * The Following code is to handle inline editing from IMEs
4384 */
4385
4386 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
4387 {
4388 LONG buflen;
4389 LPWSTR lpCompStr;
4390 LPSTR lpCompStrAttr = NULL;
4391 DWORD dwBufLenAttr;
4392
4393 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4394
4395 if (buflen < 0)
4396 {
4397 return;
4398 }
4399
4400 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
4401 if (!lpCompStr)
4402 {
4403 ERR("Unable to allocate IME CompositionString\n");
4404 return;
4405 }
4406
4407 if (buflen)
4408 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
4409 lpCompStr[buflen/sizeof(WCHAR)] = 0;
4410
4411 if (CompFlag & GCS_COMPATTR)
4412 {
4413 /*
4414 * We do not use the attributes yet. it would tell us what characters
4415 * are in transition and which are converted or decided upon
4416 */
4417 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
4418 if (dwBufLenAttr)
4419 {
4420 dwBufLenAttr ++;
4421 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
4422 if (!lpCompStrAttr)
4423 {
4424 ERR("Unable to allocate IME Attribute String\n");
4425 HeapFree(GetProcessHeap(),0,lpCompStr);
4426 return;
4427 }
4428 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
4429 dwBufLenAttr);
4430 lpCompStrAttr[dwBufLenAttr] = 0;
4431 }
4432 }
4433
4434 /* check for change in composition start */
4435 if (es->selection_end < es->composition_start)
4436 es->composition_start = es->selection_end;
4437
4438 /* replace existing selection string */
4439 es->selection_start = es->composition_start;
4440
4441 if (es->composition_len > 0)
4442 es->selection_end = es->composition_start + es->composition_len;
4443 else
4444 es->selection_end = es->selection_start;
4445
4446 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
4447 es->composition_len = abs(es->composition_start - es->selection_end);
4448
4449 es->selection_start = es->composition_start;
4450 es->selection_end = es->selection_start + es->composition_len;
4451
4452 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
4453 HeapFree(GetProcessHeap(),0,lpCompStr);
4454 }
4455
4456 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
4457 {
4458 LONG buflen;
4459 LPWSTR lpResultStr;
4460
4461 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4462 if (buflen <= 0)
4463 {
4464 return;
4465 }
4466
4467 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
4468 if (!lpResultStr)
4469 {
4470 ERR("Unable to alloc buffer for IME string\n");
4471 return;
4472 }
4473
4474 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
4475 lpResultStr[buflen/sizeof(WCHAR)] = 0;
4476
4477 /* check for change in composition start */
4478 if (es->selection_end < es->composition_start)
4479 es->composition_start = es->selection_end;
4480
4481 es->selection_start = es->composition_start;
4482 es->selection_end = es->composition_start + es->composition_len;
4483 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
4484 es->composition_start = es->selection_end;
4485 es->composition_len = 0;
4486
4487 HeapFree(GetProcessHeap(),0,lpResultStr);
4488 }
4489
4490 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
4491 {
4492 HIMC hIMC;
4493 int cursor;
4494
4495 if (es->composition_len == 0 && es->selection_start != es->selection_end)
4496 {
4497 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4498 es->composition_start = es->selection_end;
4499 }
4500
4501 hIMC = ImmGetContext(hwnd);
4502 if (!hIMC)
4503 return;
4504
4505 if (CompFlag & GCS_RESULTSTR)
4506 {
4507 EDIT_GetResultStr(hIMC, es);
4508 cursor = 0;
4509 }
4510 else
4511 {
4512 if (CompFlag & GCS_COMPSTR)
4513 EDIT_GetCompositionStr(hIMC, CompFlag, es);
4514 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
4515 }
4516 ImmReleaseContext(hwnd, hIMC);
4517 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
4518 }
4519
4520
4521 /*********************************************************************
4522 *
4523 * WM_NCCREATE
4524 *
4525 * See also EDIT_WM_StyleChanged
4526 */
4527 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4528 {
4529 EDITSTATE *es;
4530 UINT alloc_size;
4531
4532 TRACE("Creating %s edit control, style = %08x\n",
4533 unicode ? "Unicode" : "ANSI", lpcs->style);
4534
4535 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4536 return FALSE;
4537 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4538
4539 /*
4540 * Note: since the EDITSTATE has not been fully initialized yet,
4541 * we can't use any API calls that may send
4542 * WM_XXX messages before WM_NCCREATE is completed.
4543 */
4544
4545 es->is_unicode = unicode;
4546 es->style = lpcs->style;
4547
4548 es->bEnableState = !(es->style & WS_DISABLED);
4549
4550 es->hwndSelf = hwnd;
4551 /* Save parent, which will be notified by EN_* messages */
4552 es->hwndParent = lpcs->hwndParent;
4553
4554 if (es->style & ES_COMBO)
4555 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4556
4557 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4558 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4559
4560 /* Number overrides lowercase overrides uppercase (at least it
4561 * does in Win95). However I'll bet that ES_NUMBER would be
4562 * invalid under Win 3.1.
4563 */
4564 if (es->style & ES_NUMBER) {
4565 ; /* do not override the ES_NUMBER */
4566 } else if (es->style & ES_LOWERCASE) {
4567 es->style &= ~ES_UPPERCASE;
4568 }
4569 if (es->style & ES_MULTILINE) {
4570 es->buffer_limit = BUFLIMIT_INITIAL;
4571 if (es->style & WS_VSCROLL)
4572 es->style |= ES_AUTOVSCROLL;
4573 if (es->style & WS_HSCROLL)
4574 es->style |= ES_AUTOHSCROLL;
4575 es->style &= ~ES_PASSWORD;
4576 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4577 /* Confirmed - RIGHT overrides CENTER */
4578 if (es->style & ES_RIGHT)
4579 es->style &= ~ES_CENTER;
4580 es->style &= ~WS_HSCROLL;
4581 es->style &= ~ES_AUTOHSCROLL;
4582 }
4583 } else {
4584 es->buffer_limit = BUFLIMIT_INITIAL;
4585 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4586 es->style &= ~ES_CENTER;
4587 es->style &= ~WS_HSCROLL;
4588 es->style &= ~WS_VSCROLL;
4589 if (es->style & ES_PASSWORD)
4590 es->password_char = '*';
4591 }
4592
4593 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4594 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4595 goto cleanup;
4596 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4597
4598 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4599 goto cleanup;
4600 es->undo_buffer_size = es->buffer_size;
4601
4602 if (es->style & ES_MULTILINE)
4603 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4604 goto cleanup;
4605 es->line_count = 1;
4606
4607 /*
4608 * In Win95 look and feel, the WS_BORDER style is replaced by the
4609 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4610 * control a nonclient area so we don't need to draw the border.
4611 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4612 * a nonclient area and we should handle painting the border ourselves.
4613 *
4614 * When making modifications please ensure that the code still works
4615 * for edit controls created directly with style 0x50800000, exStyle 0
4616 * (which should have a single pixel border)
4617 */
4618 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4619 es->style &= ~WS_BORDER;
4620 else if (es->style & WS_BORDER)
4621 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4622
4623 return TRUE;
4624
4625 cleanup:
4626 SetWindowLongPtrW(es->hwndSelf, 0, 0);
4627 EDIT_InvalidateUniscribeData(es);
4628 HeapFree(GetProcessHeap(), 0, es->first_line_def);
4629 HeapFree(GetProcessHeap(), 0, es->undo_text);
4630 if (es->hloc32W) LocalFree(es->hloc32W);
4631 HeapFree(GetProcessHeap(), 0, es->logAttr);
4632 HeapFree(GetProcessHeap(), 0, es);
4633 return FALSE;
4634 }
4635
4636
4637 /*********************************************************************
4638 *
4639 * WM_CREATE
4640 *
4641 */
4642 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4643 {
4644 RECT clientRect;
4645
4646 TRACE("%s\n", debugstr_w(name));
4647 /*
4648 * To initialize some final structure members, we call some helper
4649 * functions. However, since the EDITSTATE is not consistent (i.e.
4650 * not fully initialized), we should be very careful which
4651 * functions can be called, and in what order.
4652 */
4653 EDIT_WM_SetFont(es, 0, FALSE);
4654 EDIT_EM_EmptyUndoBuffer(es);
4655
4656 /* We need to calculate the format rect
4657 (applications may send EM_SETMARGINS before the control gets visible) */
4658 GetClientRect(es->hwndSelf, &clientRect);
4659 EDIT_SetRectNP(es, &clientRect);
4660
4661 if (name && *name) {
4662 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4663 /* if we insert text to the editline, the text scrolls out
4664 * of the window, as the caret is placed after the insert
4665 * pos normally; thus we reset es->selection... to 0 and
4666 * update caret
4667 */
4668 es->selection_start = es->selection_end = 0;
4669 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4670 * Messages are only to be sent when the USER does something to
4671 * change the contents. So I am removing this EN_CHANGE
4672 *
4673 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4674 */
4675 EDIT_EM_ScrollCaret(es);
4676 }
4677 /* force scroll info update */
4678 EDIT_UpdateScrollInfo(es);
4679 /* The rule seems to return 1 here for success */
4680 /* Power Builder masked edit controls will crash */
4681 /* if not. */
4682 /* FIXME: is that in all cases so ? */
4683 return 1;
4684 }
4685
4686
4687 /*********************************************************************
4688 *
4689 * WM_NCDESTROY
4690 *
4691 */
4692 static LRESULT EDIT_WM_NCDestroy(EDITSTATE *es)
4693 {
4694 LINEDEF *pc, *pp;
4695
4696 /* The app can own the text buffer handle */
4697 if (es->hloc32W && (es->hloc32W != es->hlocapp)) {
4698 LocalFree(es->hloc32W);
4699 }
4700 if (es->hloc32A && (es->hloc32A != es->hlocapp)) {
4701 LocalFree(es->hloc32A);
4702 }
4703 EDIT_InvalidateUniscribeData(es);
4704 pc = es->first_line_def;
4705 while (pc)
4706 {
4707 pp = pc->next;
4708 HeapFree(GetProcessHeap(), 0, pc);
4709 pc = pp;
4710 }
4711
4712 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4713 HeapFree(GetProcessHeap(), 0, es->undo_text);
4714 HeapFree(GetProcessHeap(), 0, es);
4715
4716 return 0;
4717 }
4718
4719
4720 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
4721 {
4722 if(unicode)
4723 return DefWindowProcW(hwnd, msg, wParam, lParam);
4724 else
4725 return DefWindowProcA(hwnd, msg, wParam, lParam);
4726 }
4727
4728 /*********************************************************************
4729 *
4730 * EditWndProc_common
4731 *
4732 * The messages are in the order of the actual integer values
4733 * (which can be found in include/windows.h)
4734 */
4735 LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode )
4736 {
4737 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
4738 LRESULT result = 0;
4739 #ifdef __REACTOS__
4740 /* ReactOS r50219 */
4741 PWND pWnd;
4742
4743 pWnd = ValidateHwnd(hwnd);
4744 if (pWnd)
4745 {
4746 if (!pWnd->fnid)
4747 {
4748 NtUserSetWindowFNID(hwnd, FNID_EDIT);
4749 }
4750 else
4751 {
4752 if (pWnd->fnid != FNID_EDIT)
4753 {
4754 ERR("Wrong window class for Edit! fnId 0x%x\n",pWnd->fnid);
4755 return 0;
4756 }
4757 }
4758 }
4759 #endif
4760
4761 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
4762
4763 if (!es && msg != WM_NCCREATE)
4764 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4765
4766 if (es && (msg != WM_NCDESTROY)) EDIT_LockBuffer(es);
4767
4768 switch (msg) {
4769 case EM_GETSEL:
4770 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
4771 break;
4772
4773 case EM_SETSEL:
4774 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
4775 EDIT_EM_ScrollCaret(es);
4776 result = 1;
4777 break;
4778
4779 case EM_GETRECT:
4780 if (lParam)
4781 CopyRect((LPRECT)lParam, &es->format_rect);
4782 break;
4783
4784 case EM_SETRECT:
4785 if ((es->style & ES_MULTILINE) && lParam) {
4786 EDIT_SetRectNP(es, (LPRECT)lParam);
4787 EDIT_UpdateText(es, NULL, TRUE);
4788 }
4789 break;
4790
4791 case EM_SETRECTNP:
4792 if ((es->style & ES_MULTILINE) && lParam)
4793 EDIT_SetRectNP(es, (LPRECT)lParam);
4794 break;
4795
4796 case EM_SCROLL:
4797 result = EDIT_EM_Scroll(es, (INT)wParam);
4798 break;
4799
4800 case EM_LINESCROLL:
4801 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
4802 break;
4803
4804 case EM_SCROLLCARET:
4805 EDIT_EM_ScrollCaret(es);
4806 result = 1;
4807 break;
4808
4809 case EM_GETMODIFY:
4810 result = ((es->flags & EF_MODIFIED) != 0);
4811 break;
4812
4813 case EM_SETMODIFY:
4814 if (wParam)
4815 es->flags |= EF_MODIFIED;
4816 else
4817 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
4818 break;
4819
4820 case EM_GETLINECOUNT:
4821 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
4822 break;
4823
4824 case EM_LINEINDEX:
4825 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
4826 break;
4827
4828 case EM_SETHANDLE:
4829 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
4830 break;
4831
4832 case EM_GETHANDLE:
4833 result = (LRESULT)EDIT_EM_GetHandle(es);
4834 break;
4835
4836 case EM_GETTHUMB:
4837 result = EDIT_EM_GetThumb(es);
4838 break;
4839
4840 /* these messages missing from specs */
4841 case 0x00bf:
4842 case 0x00c0:
4843 case 0x00c3:
4844 case 0x00ca:
4845 FIXME("undocumented message 0x%x, please report\n", msg);
4846 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4847 break;
4848
4849 case EM_LINELENGTH:
4850 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
4851 break;
4852
4853 case EM_REPLACESEL:
4854 {
4855 LPWSTR textW;
4856
4857 if(unicode)
4858 textW = (LPWSTR)lParam;
4859 else
4860 {
4861 LPSTR textA = (LPSTR)lParam;
4862 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4863 if (!(textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR)))) break;
4864 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4865 }
4866
4867 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
4868 result = 1;
4869
4870 if(!unicode)
4871 HeapFree(GetProcessHeap(), 0, textW);
4872 break;
4873 }
4874
4875 case EM_GETLINE:
4876 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
4877 break;
4878
4879 case EM_SETLIMITTEXT:
4880 EDIT_EM_SetLimitText(es, wParam);
4881 break;
4882
4883 case EM_CANUNDO:
4884 result = (LRESULT)EDIT_EM_CanUndo(es);
4885 break;
4886
4887 case EM_UNDO:
4888 case WM_UNDO:
4889 result = (LRESULT)EDIT_EM_Undo(es);
4890 break;
4891
4892 case EM_FMTLINES:
4893 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
4894 break;
4895
4896 case EM_LINEFROMCHAR:
4897 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
4898 break;
4899
4900 case EM_SETTABSTOPS:
4901 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
4902 break;
4903
4904 case EM_SETPASSWORDCHAR:
4905 {
4906 WCHAR charW = 0;
4907
4908 if(unicode)
4909 charW = (WCHAR)wParam;
4910 else
4911 {
4912 CHAR charA = wParam;
4913 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4914 }
4915
4916 EDIT_EM_SetPasswordChar(es, charW);
4917 break;
4918 }
4919
4920 case EM_EMPTYUNDOBUFFER:
4921 EDIT_EM_EmptyUndoBuffer(es);
4922 break;
4923
4924 case EM_GETFIRSTVISIBLELINE:
4925 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
4926 break;
4927
4928 case EM_SETREADONLY:
4929 {
4930 DWORD old_style = es->style;
4931
4932 if (wParam) {
4933 SetWindowLongW( hwnd, GWL_STYLE,
4934 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
4935 es->style |= ES_READONLY;
4936 } else {
4937 SetWindowLongW( hwnd, GWL_STYLE,
4938 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
4939 es->style &= ~ES_READONLY;
4940 }
4941
4942 if (old_style ^ es->style)
4943 InvalidateRect(es->hwndSelf, NULL, TRUE);
4944
4945 result = 1;
4946 break;
4947 }
4948
4949 case EM_SETWORDBREAKPROC:
4950 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
4951 break;
4952
4953 case EM_GETWORDBREAKPROC:
4954 result = (LRESULT)es->word_break_proc;
4955 break;
4956
4957 case EM_GETPASSWORDCHAR:
4958 {
4959 if(unicode)
4960 result = es->password_char;
4961 else
4962 {
4963 WCHAR charW = es->password_char;
4964 CHAR charA = 0;
4965 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
4966 result = charA;
4967 }
4968 break;
4969 }
4970
4971 case EM_SETMARGINS:
4972 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
4973 break;
4974
4975 case EM_GETMARGINS:
4976 result = MAKELONG(es->left_margin, es->right_margin);
4977 break;
4978
4979 case EM_GETLIMITTEXT:
4980 result = es->buffer_limit;
4981 break;
4982
4983 case EM_POSFROMCHAR:
4984 if ((INT)wParam >= get_text_length(es)) result = -1;
4985 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
4986 break;
4987
4988 case EM_CHARFROMPOS:
4989 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4990 break;
4991
4992 /* End of the EM_ messages which were in numerical order; what order
4993 * are these in? vaguely alphabetical?
4994 */
4995
4996 case WM_NCCREATE:
4997 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
4998 break;
4999
5000 case WM_NCDESTROY:
5001 result = EDIT_WM_NCDestroy(es);
5002 #ifdef __REACTOS__
5003 NtUserSetWindowFNID(hwnd, FNID_DESTROY);
5004 #else
5005 es = NULL;
5006 #endif
5007 break;
5008
5009 case WM_GETDLGCODE:
5010 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
5011
5012 if (es->style & ES_MULTILINE)
5013 result |= DLGC_WANTALLKEYS;
5014
5015 if (lParam)
5016 {
5017 es->flags|=EF_DIALOGMODE;
5018
5019 if (((LPMSG)lParam)->message == WM_KEYDOWN)
5020 {
5021 int vk = (int)((LPMSG)lParam)->wParam;
5022
5023 if (es->hwndListBox)
5024 {
5025 if (vk == VK_RETURN || vk == VK_ESCAPE)
5026 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
5027 result |= DLGC_WANTMESSAGE;
5028 }
5029 }
5030 }
5031 break;
5032
5033 case WM_IME_CHAR:
5034 if (!unicode)
5035 {
5036 WCHAR charW;
5037 CHAR strng[2];
5038
5039 strng[0] = wParam >> 8;
5040 strng[1] = wParam & 0xff;
5041 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
5042 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
5043 result = EDIT_WM_Char(es, charW);
5044 break;
5045 }
5046 /* fall through */
5047 case WM_CHAR:
5048 {
5049 WCHAR charW;
5050
5051 if(unicode)
5052 charW = wParam;
5053 else
5054 {
5055 CHAR charA = wParam;
5056 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
5057 }
5058
5059 if (es->hwndListBox)
5060 {
5061 if (charW == VK_RETURN || charW == VK_ESCAPE)
5062 {
5063 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
5064 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
5065 break;
5066 }
5067 }
5068 result = EDIT_WM_Char(es, charW);
5069 break;
5070 }
5071
5072 case WM_UNICHAR:
5073 if (unicode)
5074 {
5075 if (wParam == UNICODE_NOCHAR) return TRUE;
5076 if (wParam <= 0x000fffff)
5077 {
5078 if(wParam > 0xffff) /* convert to surrogates */
5079 {
5080 wParam -= 0x10000;
5081 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
5082 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
5083 }
5084 else EDIT_WM_Char(es, wParam);
5085 }
5086 return 0;
5087 }
5088 break;
5089
5090 case WM_CLEAR:
5091 EDIT_WM_Clear(es);
5092 break;
5093
5094 case WM_CONTEXTMENU:
5095 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
5096 break;
5097
5098 case WM_COPY:
5099 EDIT_WM_Copy(es);
5100 break;
5101
5102 case WM_CREATE:
5103 if(unicode)
5104 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
5105 else
5106 {
5107 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
5108 LPWSTR nameW = NULL;
5109 if(nameA)
5110 {
5111 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
5112 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
5113 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
5114 }
5115 result = EDIT_WM_Create(es, nameW);
5116 HeapFree(GetProcessHeap(), 0, nameW);
5117 }
5118 break;
5119
5120 case WM_CUT:
5121 EDIT_WM_Cut(es);
5122 break;
5123
5124 case WM_ENABLE:
5125 es->bEnableState = (BOOL) wParam;
5126 EDIT_UpdateText(es, NULL, TRUE);
5127 break;
5128
5129 case WM_ERASEBKGND:
5130 /* we do the proper erase in EDIT_WM_Paint */
5131 result = 1;
5132 break;
5133
5134 case WM_GETFONT:
5135 result = (LRESULT)es->font;
5136 break;
5137
5138 case WM_GETTEXT:
5139 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
5140 break;
5141
5142 case WM_GETTEXTLENGTH:
5143 if (unicode) result = get_text_length(es);
5144 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
5145 NULL, 0, NULL, NULL );
5146 break;
5147
5148 case WM_HSCROLL:
5149 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
5150 break;
5151
5152 case WM_KEYDOWN:
5153 result = EDIT_WM_KeyDown(es, (INT)wParam);
5154 break;
5155
5156 case WM_KILLFOCUS:
5157 result = EDIT_WM_KillFocus(es);
5158 break;
5159
5160 case WM_LBUTTONDBLCLK:
5161 result = EDIT_WM_LButtonDblClk(es);
5162 break;
5163
5164 case WM_LBUTTONDOWN:
5165 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
5166 break;
5167
5168 case WM_LBUTTONUP:
5169 result = EDIT_WM_LButtonUp(es);
5170 break;
5171
5172 case WM_MBUTTONDOWN:
5173 result = EDIT_WM_MButtonDown(es);
5174 break;
5175
5176 case WM_MOUSEMOVE:
5177 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
5178 break;
5179
5180 case WM_PRINTCLIENT:
5181 case WM_PAINT:
5182 EDIT_WM_Paint(es, (HDC)wParam);
5183 break;
5184
5185 case WM_PASTE:
5186 EDIT_WM_Paste(es);
5187 break;
5188
5189 case WM_SETFOCUS:
5190 EDIT_WM_SetFocus(es);
5191 break;
5192
5193 case WM_SETFONT:
5194 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
5195 break;
5196
5197 case WM_SETREDRAW:
5198 /* FIXME: actually set an internal flag and behave accordingly */
5199 break;
5200
5201 case WM_SETTEXT:
5202 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
5203 result = TRUE;
5204 break;
5205
5206 case WM_SIZE:
5207 EDIT_WM_Size(es, (UINT)wParam);
5208 break;
5209
5210 case WM_STYLECHANGED:
5211 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
5212 break;
5213
5214 case WM_STYLECHANGING:
5215 result = 0; /* See EDIT_WM_StyleChanged */
5216 break;
5217
5218 case WM_SYSKEYDOWN:
5219 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
5220 break;
5221
5222 case WM_TIMER:
5223 EDIT_WM_Timer(es);
5224 break;
5225
5226 case WM_VSCROLL:
5227 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
5228 break;
5229
5230 case WM_MOUSEWHEEL:
5231 {
5232 int wheelDelta;
5233 UINT pulScrollLines = 3;
5234 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
5235
5236 if (wParam & (MK_SHIFT | MK_CONTROL)) {
5237 result = DefWindowProcW(hwnd, msg, wParam, lParam);
5238 break;
5239 }
5240 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
5241 /* if scrolling changes direction, ignore left overs */
5242 if ((wheelDelta < 0 && es->wheelDeltaRemainder < 0) ||
5243 (wheelDelta > 0 && es->wheelDeltaRemainder > 0))
5244 es->wheelDeltaRemainder += wheelDelta;
5245 else
5246 es->wheelDeltaRemainder = wheelDelta;
5247 if (es->wheelDeltaRemainder && pulScrollLines)
5248 {
5249 int cLineScroll;
5250 pulScrollLines = (int) min((UINT) es->line_count, pulScrollLines);
5251 cLineScroll = pulScrollLines * (float)es->wheelDeltaRemainder / WHEEL_DELTA;
5252 es->wheelDeltaRemainder -= WHEEL_DELTA * cLineScroll / (int)pulScrollLines;
5253 result = EDIT_EM_LineScroll(es, 0, -cLineScroll);
5254 }
5255 }
5256 break;
5257
5258
5259 /* IME messages to make the edit control IME aware */
5260 case WM_IME_SETCONTEXT:
5261 break;
5262
5263 case WM_IME_STARTCOMPOSITION:
5264 es->composition_start = es->selection_end;
5265 es->composition_len = 0;
5266 break;
5267
5268 case WM_IME_COMPOSITION:
5269 EDIT_ImeComposition(hwnd, lParam, es);
5270 break;
5271
5272 case WM_IME_ENDCOMPOSITION:
5273 if (es->composition_len > 0)
5274 {
5275 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5276 es->selection_end = es->selection_start;
5277 es->composition_len= 0;
5278 }
5279 break;
5280
5281 case WM_IME_COMPOSITIONFULL:
5282 break;
5283
5284 case WM_IME_SELECT:
5285 break;
5286
5287 case WM_IME_CONTROL:
5288 break;
5289
5290 case WM_IME_REQUEST:
5291 switch (wParam)
5292 {
5293 case IMR_QUERYCHARPOSITION:
5294 {
5295 LRESULT pos;
5296 IMECHARPOSITION *chpos = (IMECHARPOSITION *)lParam;
5297
5298 pos = EDIT_EM_PosFromChar(es, es->selection_start + chpos->dwCharPos, FALSE);
5299 chpos->pt.x = LOWORD(pos);
5300 chpos->pt.y = HIWORD(pos);
5301 chpos->cLineHeight = es->line_height;
5302 chpos->rcDocument = es->format_rect;
5303 MapWindowPoints(hwnd, 0, &chpos->pt, 1);
5304 MapWindowPoints(hwnd, 0, (POINT*)&chpos->rcDocument, 2);
5305 result = 1;
5306 break;
5307 }
5308 }
5309 break;
5310
5311 default:
5312 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
5313 break;
5314 }
5315
5316 #ifdef __REACTOS__
5317 /* ReactOS: check GetWindowLong in case es has been destroyed during processing */
5318 if (IsWindow(hwnd) && es && GetWindowLongPtrW(hwnd, 0))
5319 EDIT_UnlockBuffer(es, FALSE);
5320 #else
5321 if (IsWindow(hwnd) && es) EDIT_UnlockBuffer(es, FALSE);
5322 #endif
5323
5324 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
5325
5326 return result;
5327 }
5328
5329 #ifdef __REACTOS__
5330
5331 /*********************************************************************
5332 *
5333 * EditWndProc (USER32.@)
5334 */
5335 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5336 {
5337 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
5338 }
5339
5340 /*********************************************************************
5341 *
5342 * EditWndProcW (USER32.@)
5343 */
5344 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5345 {
5346 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
5347 }
5348
5349 #endif /* __REACTOS__ */
5350
5351 /*********************************************************************
5352 * edit class descriptor
5353 */
5354 static const WCHAR editW[] = {'E','d','i','t',0};
5355 const struct builtin_class_descr EDIT_builtin_class =
5356 {
5357 editW, /* name */
5358 CS_DBLCLKS | CS_PARENTDC, /* style */
5359 #ifdef __REACTOS__
5360 EditWndProcA, /* procA */
5361 EditWndProcW, /* procW */
5362 #else
5363 WINPROC_EDIT, /* proc */
5364 #endif
5365 #ifndef _WIN64
5366 sizeof(EDITSTATE *) + sizeof(WORD), /* extra */
5367 #else
5368 sizeof(EDITSTATE *), /* extra */
5369 #endif
5370 IDC_IBEAM, /* cursor */
5371 0 /* brush */
5372 };
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