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user32: Use Uniscribe in the multiline edit control.
[wine.git] / dlls / user32 / edit.c
blobe0e0bbaeb39694ae0746919be55f9166909cb817
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 "config.h"
46
47 #include <stdarg.h>
48 #include <string.h>
49 #include <stdlib.h>
50
51 #include "windef.h"
52 #include "winbase.h"
53 #include "winnt.h"
54 #include "win.h"
55 #include "imm.h"
56 #include "usp10.h"
57 #include "wine/unicode.h"
58 #include "controls.h"
59 #include "user_private.h"
60 #include "wine/debug.h"
61
62 WINE_DEFAULT_DEBUG_CHANNEL(edit);
63 WINE_DECLARE_DEBUG_CHANNEL(combo);
64 WINE_DECLARE_DEBUG_CHANNEL(relay);
65
66 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
67 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
68 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
69 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
70
71 /*
72 * extra flags for EDITSTATE.flags field
73 */
74 #define EF_MODIFIED 0x0001 /* text has been modified */
75 #define EF_FOCUSED 0x0002 /* we have input focus */
76 #define EF_UPDATE 0x0004 /* notify parent of changed state */
77 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
79 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
80 wrapped line, instead of in front of the next character */
81 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
82 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
83 the text buffer if this is clear. */
84 #define EF_DIALOGMODE 0x0400 /* Indicates that we are inside a dialog window */
85
86 typedef enum
87 {
88 END_0 = 0, /* line ends with terminating '\0' character */
89 END_WRAP, /* line is wrapped */
90 END_HARD, /* line ends with a hard return '\r\n' */
91 END_SOFT, /* line ends with a soft return '\r\r\n' */
92 END_RICH /* line ends with a single '\n' */
93 } LINE_END;
94
95 typedef struct tagLINEDEF {
96 INT length; /* bruto length of a line in bytes */
97 INT net_length; /* netto length of a line in visible characters */
98 LINE_END ending;
99 INT width; /* width of the line in pixels */
100 INT index; /* line index into the buffer */
101 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data */
102 struct tagLINEDEF *next;
103 } LINEDEF;
104
105 typedef struct
106 {
107 BOOL is_unicode; /* how the control was created */
108 LPWSTR text; /* the actual contents of the control */
109 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
110 UINT buffer_size; /* the size of the buffer in characters */
111 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
112 HFONT font; /* NULL means standard system font */
113 INT x_offset; /* scroll offset for multi lines this is in pixels
114 for single lines it's in characters */
115 INT line_height; /* height of a screen line in pixels */
116 INT char_width; /* average character width in pixels */
117 DWORD style; /* sane version of wnd->dwStyle */
118 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
119 INT undo_insert_count; /* number of characters inserted in sequence */
120 UINT undo_position; /* character index of the insertion and deletion */
121 LPWSTR undo_text; /* deleted text */
122 UINT undo_buffer_size; /* size of the deleted text buffer */
123 INT selection_start; /* == selection_end if no selection */
124 INT selection_end; /* == current caret position */
125 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
126 INT left_margin; /* in pixels */
127 INT right_margin; /* in pixels */
128 RECT format_rect;
129 INT text_width; /* width of the widest line in pixels for multi line controls
130 and just line width for single line controls */
131 INT region_posx; /* Position of cursor relative to region: */
132 INT region_posy; /* -1: to left, 0: within, 1: to right */
133 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
134 INT line_count; /* number of lines */
135 INT y_offset; /* scroll offset in number of lines */
136 BOOL bCaptureState; /* flag indicating whether mouse was captured */
137 BOOL bEnableState; /* flag keeping the enable state */
138 HWND hwndSelf; /* the our window handle */
139 HWND hwndParent; /* Handle of parent for sending EN_* messages.
140 Even if parent will change, EN_* messages
141 should be sent to the first parent. */
142 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
143 /*
144 * only for multi line controls
145 */
146 INT lock_count; /* amount of re-entries in the EditWndProc */
147 INT tabs_count;
148 LPINT tabs;
149 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
150 HLOCAL hloc32W; /* our unicode local memory block */
151 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
152 or EM_SETHANDLE */
153 /*
154 * IME Data
155 */
156 UINT composition_len; /* length of composition, 0 == no composition */
157 int composition_start; /* the character position for the composition */
158 /*
159 * Uniscribe Data
160 */
161 SCRIPT_LOGATTR *logAttr;
162 SCRIPT_STRING_ANALYSIS ssa; /* Uniscribe Data for single line controls */
163 } EDITSTATE;
164
165
166 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
167 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
168
169 /* used for disabled or read-only edit control */
170 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
171 do \
172 { /* Notify parent which has created this edit control */ \
173 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
174 SendMessageW(es->hwndParent, WM_COMMAND, \
175 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
176 (LPARAM)(es->hwndSelf)); \
177 } while(0)
178
179 static const WCHAR empty_stringW[] = {0};
180 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
181
182 /*********************************************************************
183 *
184 * EM_CANUNDO
185 *
186 */
187 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
188 {
189 return (es->undo_insert_count || strlenW(es->undo_text));
190 }
191
192
193 /*********************************************************************
194 *
195 * EM_EMPTYUNDOBUFFER
196 *
197 */
198 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
199 {
200 es->undo_insert_count = 0;
201 *es->undo_text = '\0';
202 }
203
204
205 /**********************************************************************
206 * get_app_version
207 *
208 * Returns the window version in case Wine emulates a later version
209 * of windows than the application expects.
210 *
211 * In a number of cases when windows runs an application that was
212 * designed for an earlier windows version, windows reverts
213 * to "old" behaviour of that earlier version.
214 *
215 * An example is a disabled edit control that needs to be painted.
216 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
217 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
218 * applications with an expected version 0f 4.0 or higher.
219 *
220 */
221 static DWORD get_app_version(void)
222 {
223 static DWORD version;
224 if (!version)
225 {
226 DWORD dwEmulatedVersion;
227 OSVERSIONINFOW info;
228 DWORD dwProcVersion = GetProcessVersion(0);
229
230 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
231 GetVersionExW( &info );
232 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
233 /* FIXME: this may not be 100% correct; see discussion on the
234 * wine developer list in Nov 1999 */
235 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
236 }
237 return version;
238 }
239
240 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
241 {
242 HBRUSH hbrush;
243 UINT msg;
244
245 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
246 msg = WM_CTLCOLORSTATIC;
247 else
248 msg = WM_CTLCOLOREDIT;
249
250 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
251 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
252 if (!hbrush)
253 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
254 return hbrush;
255 }
256
257
258 static inline UINT get_text_length(EDITSTATE *es)
259 {
260 if(es->text_length == (UINT)-1)
261 es->text_length = strlenW(es->text);
262 return es->text_length;
263 }
264
265
266 /*********************************************************************
267 *
268 * EDIT_WordBreakProc
269 *
270 * Find the beginning of words.
271 * Note: unlike the specs for a WordBreakProc, this function only
272 * allows to be called without linebreaks between s[0] up to
273 * s[count - 1]. Remember it is only called
274 * internally, so we can decide this for ourselves.
275 * Additional we will always be breaking the full string.
276 *
277 */
278 static INT EDIT_WordBreakProc(EDITSTATE *es, LPWSTR s, INT index, INT count, INT action)
279 {
280 INT ret = 0;
281
282 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
283
284 if(!s) return 0;
285
286 if (!es->logAttr)
287 {
288 SCRIPT_ANALYSIS psa;
289
290 memset(&psa,0,sizeof(SCRIPT_ANALYSIS));
291 psa.eScript = SCRIPT_UNDEFINED;
292
293 es->logAttr = HeapAlloc(GetProcessHeap(), 0, sizeof(SCRIPT_LOGATTR) * get_text_length(es));
294 ScriptBreak(es->text, get_text_length(es), &psa, es->logAttr);
295 }
296
297 switch (action) {
298 case WB_LEFT:
299 if (index)
300 index--;
301 while (index && !es->logAttr[index].fSoftBreak)
302 index--;
303 ret = index;
304 break;
305 case WB_RIGHT:
306 if (!count)
307 break;
308 while (s[index] && index < count && !es->logAttr[index].fSoftBreak)
309 index++;
310 ret = index;
311 break;
312 case WB_ISDELIMITER:
313 ret = es->logAttr[index].fWhiteSpace;
314 break;
315 default:
316 ERR("unknown action code, please report !\n");
317 break;
318 }
319 return ret;
320 }
321
322
323 /*********************************************************************
324 *
325 * EDIT_CallWordBreakProc
326 *
327 * Call appropriate WordBreakProc (internal or external).
328 *
329 * Note: The "start" argument should always be an index referring
330 * to es->text. The actual wordbreak proc might be
331 * 16 bit, so we can't always pass any 32 bit LPSTR.
332 * Hence we assume that es->text is the buffer that holds
333 * the string under examination (we can decide this for ourselves).
334 *
335 */
336 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
337 {
338 INT ret;
339
340 if (es->word_break_proc)
341 {
342 if(es->is_unicode)
343 {
344 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
345
346 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
347 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
348 ret = wbpW(es->text + start, index, count, action);
349 }
350 else
351 {
352 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
353 INT countA;
354 CHAR *textA;
355
356 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
357 textA = HeapAlloc(GetProcessHeap(), 0, countA);
358 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
359 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
360 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
361 ret = wbpA(textA, index, countA, action);
362 HeapFree(GetProcessHeap(), 0, textA);
363 }
364 }
365 else
366 ret = EDIT_WordBreakProc(es, es->text, index+start, count+start, action) - start;
367
368 return ret;
369 }
370
371 static inline void EDIT_InvalidateUniscribeData_linedef(LINEDEF *line_def)
372 {
373 if (line_def->ssa)
374 {
375 ScriptStringFree(&line_def->ssa);
376 line_def->ssa = NULL;
377 }
378 }
379
380 static inline void EDIT_InvalidateUniscribeData(EDITSTATE *es)
381 {
382 LINEDEF *line_def = es->first_line_def;
383 while (line_def)
384 {
385 EDIT_InvalidateUniscribeData_linedef(line_def);
386 line_def = line_def->next;
387 }
388 if (es->ssa)
389 {
390 ScriptStringFree(&es->ssa);
391 es->ssa = NULL;
392 }
393 }
394
395 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData_linedef(EDITSTATE *es, HDC dc, LINEDEF *line_def)
396 {
397 if (!line_def)
398 return NULL;
399
400 if (line_def->net_length && !line_def->ssa)
401 {
402 int index = line_def->index;
403 HFONT old_font = NULL;
404 HDC udc = dc;
405 SCRIPT_TABDEF tabdef;
406
407 if (!udc)
408 udc = GetDC(es->hwndSelf);
409 if (es->font)
410 old_font = SelectObject(udc, es->font);
411
412 tabdef.cTabStops = es->tabs_count;
413 tabdef.iScale = 0;
414 tabdef.pTabStops = es->tabs;
415 tabdef.iTabOrigin = 0;
416
417 ScriptStringAnalyse(udc, &es->text[index], line_def->net_length, (1.5*line_def->net_length+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS|SSA_TAB, -1, NULL, NULL, NULL, &tabdef, NULL, &line_def->ssa);
418
419 if (es->font)
420 SelectObject(udc, old_font);
421 if (udc != dc)
422 ReleaseDC(es->hwndSelf, udc);
423 }
424
425 return line_def->ssa;
426 }
427
428 static SCRIPT_STRING_ANALYSIS EDIT_UpdateUniscribeData(EDITSTATE *es, HDC dc, INT line)
429 {
430 LINEDEF *line_def;
431
432 if (!(es->style & ES_MULTILINE))
433 {
434 if (!es->ssa)
435 {
436 INT length = get_text_length(es);
437 HFONT old_font = NULL;
438 HDC udc = dc;
439
440 if (!udc)
441 udc = GetDC(es->hwndSelf);
442 if (es->font)
443 old_font = SelectObject(udc, es->font);
444
445 if (es->style & ES_PASSWORD)
446 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);
447 else
448 ScriptStringAnalyse(udc, es->text, length, (1.5*length+16), -1, SSA_LINK|SSA_FALLBACK|SSA_GLYPHS, -1, NULL, NULL, NULL, NULL, NULL, &es->ssa);
449
450 if (es->font)
451 SelectObject(udc, old_font);
452 if (udc != dc)
453 ReleaseDC(es->hwndSelf, udc);
454 }
455 return es->ssa;
456 }
457 else
458 {
459 line_def = es->first_line_def;
460 while (line_def && line)
461 {
462 line_def = line_def->next;
463 line--;
464 }
465
466 return EDIT_UpdateUniscribeData_linedef(es,dc,line_def);
467 }
468 }
469
470 /*********************************************************************
471 *
472 * EDIT_BuildLineDefs_ML
473 *
474 * Build linked list of text lines.
475 * Lines can end with '\0' (last line), a character (if it is wrapped),
476 * a soft return '\r\r\n' or a hard return '\r\n'
477 *
478 */
479 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
480 {
481 LPWSTR current_position, cp;
482 INT fw;
483 LINEDEF *current_line;
484 LINEDEF *previous_line;
485 LINEDEF *start_line;
486 INT line_index = 0, nstart_line = 0, nstart_index = 0;
487 INT line_count = es->line_count;
488 INT orig_net_length;
489 RECT rc;
490
491 if (istart == iend && delta == 0)
492 return;
493
494 previous_line = NULL;
495 current_line = es->first_line_def;
496
497 /* Find starting line. istart must lie inside an existing line or
498 * at the end of buffer */
499 do {
500 if (istart < current_line->index + current_line->length ||
501 current_line->ending == END_0)
502 break;
503
504 previous_line = current_line;
505 current_line = current_line->next;
506 line_index++;
507 } while (current_line);
508
509 if (!current_line) /* Error occurred start is not inside previous buffer */
510 {
511 FIXME(" modification occurred outside buffer\n");
512 return;
513 }
514
515 /* Remember start of modifications in order to calculate update region */
516 nstart_line = line_index;
517 nstart_index = current_line->index;
518
519 /* We must start to reformat from the previous line since the modifications
520 * may have caused the line to wrap upwards. */
521 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
522 {
523 line_index--;
524 current_line = previous_line;
525 }
526 start_line = current_line;
527
528 fw = es->format_rect.right - es->format_rect.left;
529 current_position = es->text + current_line->index;
530 do {
531 if (current_line != start_line)
532 {
533 if (!current_line || current_line->index + delta > current_position - es->text)
534 {
535 /* The buffer has been expanded, create a new line and
536 insert it into the link list */
537 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF));
538 new_line->next = previous_line->next;
539 previous_line->next = new_line;
540 current_line = new_line;
541 es->line_count++;
542 }
543 else if (current_line->index + delta < current_position - es->text)
544 {
545 /* The previous line merged with this line so we delete this extra entry */
546 previous_line->next = current_line->next;
547 HeapFree(GetProcessHeap(), 0, current_line);
548 current_line = previous_line->next;
549 es->line_count--;
550 continue;
551 }
552 else /* current_line->index + delta == current_position */
553 {
554 if (current_position - es->text > iend)
555 break; /* We reached end of line modifications */
556 /* else recalculate this line */
557 }
558 }
559
560 current_line->index = current_position - es->text;
561 orig_net_length = current_line->net_length;
562
563 /* Find end of line */
564 cp = current_position;
565 while (*cp) {
566 if (*cp == '\n') break;
567 if ((*cp == '\r') && (*(cp + 1) == '\n'))
568 break;
569 cp++;
570 }
571
572 /* Mark type of line termination */
573 if (!(*cp)) {
574 current_line->ending = END_0;
575 current_line->net_length = strlenW(current_position);
576 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
577 current_line->ending = END_SOFT;
578 current_line->net_length = cp - current_position - 1;
579 } else if (*cp == '\n') {
580 current_line->ending = END_RICH;
581 current_line->net_length = cp - current_position;
582 } else {
583 current_line->ending = END_HARD;
584 current_line->net_length = cp - current_position;
585 }
586
587 if (current_line->net_length)
588 {
589 const SIZE *sz;
590 EDIT_InvalidateUniscribeData_linedef(current_line);
591 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
592 sz = ScriptString_pSize(current_line->ssa);
593 /* Calculate line width */
594 current_line->width = sz->cx;
595 }
596 else current_line->width = 0;
597
598 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
599
600 /* Line breaks just look back from the end and find the next break and try that. */
601
602 if (!(es->style & ES_AUTOHSCROLL)) {
603 if (current_line->width > fw) {
604
605 INT prev;
606 int w;
607 const SIZE *sz;
608
609 prev = current_line->net_length - 1;
610 w = current_line->net_length;
611 do {
612 prev = EDIT_CallWordBreakProc(es, current_position - es->text,
613 prev-1, current_line->net_length, WB_LEFT);
614 current_line->net_length = prev;
615 EDIT_InvalidateUniscribeData_linedef(current_line);
616 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
617 sz = ScriptString_pSize(current_line->ssa);
618 if (sz)
619 current_line->width = sz->cx;
620 else
621 prev = 0;
622 } while (prev && current_line->width > fw);
623 current_line->net_length = w;
624
625 if (prev == 0) { /* Didn't find a line break so force a break */
626 INT *piDx;
627 const INT *count;
628
629 EDIT_InvalidateUniscribeData_linedef(current_line);
630 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
631
632 count = ScriptString_pcOutChars(current_line->ssa);
633 piDx = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * (*count));
634 ScriptStringGetLogicalWidths(current_line->ssa,piDx);
635
636 prev = current_line->net_length-1;
637 do {
638 current_line->width -= piDx[prev];
639 prev--;
640 } while ( prev > 0 && current_line->width > fw);
641 if (prev==0)
642 prev = 1;
643 HeapFree(GetProcessHeap(),0,piDx);
644 }
645
646 /* If the first line we are calculating, wrapped before istart, we must
647 * adjust istart in order for this to be reflected in the update region. */
648 if (current_line->index == nstart_index && istart > current_line->index + prev)
649 istart = current_line->index + prev;
650 /* else if we are updating the previous line before the first line we
651 * are re-calculating and it expanded */
652 else if (current_line == start_line &&
653 current_line->index != nstart_index && orig_net_length < prev)
654 {
655 /* Line expanded due to an upwards line wrap so we must partially include
656 * previous line in update region */
657 nstart_line = line_index;
658 nstart_index = current_line->index;
659 istart = current_line->index + orig_net_length;
660 }
661
662 current_line->net_length = prev;
663 current_line->ending = END_WRAP;
664
665 if (current_line->net_length > 0)
666 {
667 EDIT_UpdateUniscribeData_linedef(es, NULL, current_line);
668 sz = ScriptString_pSize(current_line->ssa);
669 current_line->width = sz->cx;
670 }
671 else current_line->width = 0;
672 }
673 else if (current_line == start_line &&
674 current_line->index != nstart_index &&
675 orig_net_length < current_line->net_length) {
676 /* The previous line expanded but it's still not as wide as the client rect */
677 /* The expansion is due to an upwards line wrap so we must partially include
678 it in the update region */
679 nstart_line = line_index;
680 nstart_index = current_line->index;
681 istart = current_line->index + orig_net_length;
682 }
683 }
684
685
686 /* Adjust length to include line termination */
687 switch (current_line->ending) {
688 case END_SOFT:
689 current_line->length = current_line->net_length + 3;
690 break;
691 case END_RICH:
692 current_line->length = current_line->net_length + 1;
693 break;
694 case END_HARD:
695 current_line->length = current_line->net_length + 2;
696 break;
697 case END_WRAP:
698 case END_0:
699 current_line->length = current_line->net_length;
700 break;
701 }
702 es->text_width = max(es->text_width, current_line->width);
703 current_position += current_line->length;
704 previous_line = current_line;
705 current_line = current_line->next;
706 line_index++;
707 } while (previous_line->ending != END_0);
708
709 /* Finish adjusting line indexes by delta or remove hanging lines */
710 if (previous_line->ending == END_0)
711 {
712 LINEDEF *pnext = NULL;
713
714 previous_line->next = NULL;
715 while (current_line)
716 {
717 pnext = current_line->next;
718 EDIT_InvalidateUniscribeData_linedef(current_line);
719 HeapFree(GetProcessHeap(), 0, current_line);
720 current_line = pnext;
721 es->line_count--;
722 }
723 }
724 else if (delta != 0)
725 {
726 while (current_line)
727 {
728 current_line->index += delta;
729 current_line = current_line->next;
730 }
731 }
732
733 /* Calculate rest of modification rectangle */
734 if (hrgn)
735 {
736 HRGN tmphrgn;
737 /*
738 * We calculate two rectangles. One for the first line which may have
739 * an indent with respect to the format rect. The other is a format-width
740 * rectangle that spans the rest of the lines that changed or moved.
741 */
742 rc.top = es->format_rect.top + nstart_line * es->line_height -
743 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
744 rc.bottom = rc.top + es->line_height;
745 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
746 rc.left = es->format_rect.left;
747 else
748 rc.left = LOWORD(EDIT_EM_PosFromChar(es, nstart_index, FALSE));
749 rc.right = es->format_rect.right;
750 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
751
752 rc.top = rc.bottom;
753 rc.left = es->format_rect.left;
754 rc.right = es->format_rect.right;
755 /*
756 * If lines were added or removed we must re-paint the remainder of the
757 * lines since the remaining lines were either shifted up or down.
758 */
759 if (line_count < es->line_count) /* We added lines */
760 rc.bottom = es->line_count * es->line_height;
761 else if (line_count > es->line_count) /* We removed lines */
762 rc.bottom = line_count * es->line_height;
763 else
764 rc.bottom = line_index * es->line_height;
765 rc.bottom += es->format_rect.top;
766 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
767 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
768 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
769 DeleteObject(tmphrgn);
770 }
771 }
772
773 /*********************************************************************
774 *
775 * EDIT_CalcLineWidth_SL
776 *
777 */
778 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
779 {
780 const SIZE *size;
781
782 EDIT_UpdateUniscribeData(es, NULL, 0);
783 size = ScriptString_pSize(es->ssa);
784 if (size)
785 es->text_width = size->cx;
786 else
787 es->text_width = 0;
788 }
789
790 /*********************************************************************
791 *
792 * EDIT_CharFromPos
793 *
794 * Beware: This is not the function called on EM_CHARFROMPOS
795 * The position _can_ be outside the formatting / client
796 * rectangle
797 * The return value is only the character index
798 *
799 */
800 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
801 {
802 INT index;
803
804 if (es->style & ES_MULTILINE) {
805 int trailing;
806 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
807 INT line_index = 0;
808 LINEDEF *line_def = es->first_line_def;
809 EDIT_UpdateUniscribeData(es, NULL, line);
810 while ((line > 0) && line_def->next) {
811 line_index += line_def->length;
812 line_def = line_def->next;
813 line--;
814 }
815
816 x += es->x_offset - es->format_rect.left;
817 if (es->style & ES_RIGHT)
818 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
819 else if (es->style & ES_CENTER)
820 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
821 if (x >= line_def->width) {
822 if (after_wrap)
823 *after_wrap = (line_def->ending == END_WRAP);
824 return line_index + line_def->net_length;
825 }
826 if (x <= 0) {
827 if (after_wrap)
828 *after_wrap = FALSE;
829 return line_index;
830 }
831
832 ScriptStringXtoCP(line_def->ssa, x , &index, &trailing);
833 if (trailing) index++;
834 index += line_index;
835 if (after_wrap)
836 *after_wrap = ((index == line_index + line_def->net_length) &&
837 (line_def->ending == END_WRAP));
838 } else {
839 INT xoff = 0;
840 INT trailing;
841 if (after_wrap)
842 *after_wrap = FALSE;
843 x -= es->format_rect.left;
844 if (!x)
845 return es->x_offset;
846
847 if (!es->x_offset)
848 {
849 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
850 if (es->style & ES_RIGHT)
851 x -= indent;
852 else if (es->style & ES_CENTER)
853 x -= indent / 2;
854 }
855
856 EDIT_UpdateUniscribeData(es, NULL, 0);
857 if (es->x_offset)
858 {
859 if (es->x_offset>= get_text_length(es))
860 {
861 const SIZE *size;
862 size = ScriptString_pSize(es->ssa);
863 xoff = size->cx;
864 }
865 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
866 }
867 if (x < 0)
868 {
869 if (x + xoff > 0)
870 {
871 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
872 if (trailing) index++;
873 }
874 else
875 index = 0;
876 }
877 else
878 {
879 if (x)
880 {
881 const SIZE *size;
882 size = ScriptString_pSize(es->ssa);
883 if (!size)
884 index = 0;
885 else if (x > size->cx)
886 index = get_text_length(es);
887 else
888 {
889 ScriptStringXtoCP(es->ssa, x+xoff, &index, &trailing);
890 if (trailing) index++;
891 }
892 }
893 else
894 index = es->x_offset;
895 }
896 }
897 return index;
898 }
899
900
901 /*********************************************************************
902 *
903 * EDIT_ConfinePoint
904 *
905 * adjusts the point to be within the formatting rectangle
906 * (so CharFromPos returns the nearest _visible_ character)
907 *
908 */
909 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
910 {
911 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
912 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
913 }
914
915
916 /*********************************************************************
917 *
918 * EM_LINEFROMCHAR
919 *
920 */
921 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
922 {
923 INT line;
924 LINEDEF *line_def;
925
926 if (!(es->style & ES_MULTILINE))
927 return 0;
928 if (index > (INT)get_text_length(es))
929 return es->line_count - 1;
930 if (index == -1)
931 index = min(es->selection_start, es->selection_end);
932
933 line = 0;
934 line_def = es->first_line_def;
935 index -= line_def->length;
936 while ((index >= 0) && line_def->next) {
937 line++;
938 line_def = line_def->next;
939 index -= line_def->length;
940 }
941 return line;
942 }
943
944
945 /*********************************************************************
946 *
947 * EM_LINEINDEX
948 *
949 */
950 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
951 {
952 INT line_index;
953 const LINEDEF *line_def;
954
955 if (!(es->style & ES_MULTILINE))
956 return 0;
957 if (line >= es->line_count)
958 return -1;
959
960 line_index = 0;
961 line_def = es->first_line_def;
962 if (line == -1) {
963 INT index = es->selection_end - line_def->length;
964 while ((index >= 0) && line_def->next) {
965 line_index += line_def->length;
966 line_def = line_def->next;
967 index -= line_def->length;
968 }
969 } else {
970 while (line > 0) {
971 line_index += line_def->length;
972 line_def = line_def->next;
973 line--;
974 }
975 }
976 return line_index;
977 }
978
979
980 /*********************************************************************
981 *
982 * EM_LINELENGTH
983 *
984 */
985 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
986 {
987 LINEDEF *line_def;
988
989 if (!(es->style & ES_MULTILINE))
990 return get_text_length(es);
991
992 if (index == -1) {
993 /* get the number of remaining non-selected chars of selected lines */
994 INT32 l; /* line number */
995 INT32 li; /* index of first char in line */
996 INT32 count;
997 l = EDIT_EM_LineFromChar(es, es->selection_start);
998 /* # chars before start of selection area */
999 count = es->selection_start - EDIT_EM_LineIndex(es, l);
1000 l = EDIT_EM_LineFromChar(es, es->selection_end);
1001 /* # chars after end of selection */
1002 li = EDIT_EM_LineIndex(es, l);
1003 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
1004 return count;
1005 }
1006 line_def = es->first_line_def;
1007 index -= line_def->length;
1008 while ((index >= 0) && line_def->next) {
1009 line_def = line_def->next;
1010 index -= line_def->length;
1011 }
1012 return line_def->net_length;
1013 }
1014
1015
1016 /*********************************************************************
1017 *
1018 * EM_POSFROMCHAR
1019 *
1020 */
1021 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
1022 {
1023 INT len = get_text_length(es);
1024 INT l;
1025 INT li;
1026 INT x = 0;
1027 INT y = 0;
1028 INT w;
1029 INT lw = 0;
1030 LINEDEF *line_def;
1031
1032 index = min(index, len);
1033 if (es->style & ES_MULTILINE) {
1034 l = EDIT_EM_LineFromChar(es, index);
1035 EDIT_UpdateUniscribeData(es, NULL, l);
1036
1037 y = (l - es->y_offset) * es->line_height;
1038 li = EDIT_EM_LineIndex(es, l);
1039 if (after_wrap && (li == index) && l) {
1040 INT l2 = l - 1;
1041 line_def = es->first_line_def;
1042 while (l2) {
1043 line_def = line_def->next;
1044 l2--;
1045 }
1046 if (line_def->ending == END_WRAP) {
1047 l--;
1048 y -= es->line_height;
1049 li = EDIT_EM_LineIndex(es, l);
1050 }
1051 }
1052
1053 line_def = es->first_line_def;
1054 while (line_def->index != li)
1055 line_def = line_def->next;
1056
1057 lw = line_def->width;
1058 w = es->format_rect.right - es->format_rect.left;
1059 ScriptStringCPtoX(line_def->ssa, (index - 1) - li, TRUE, &x);
1060 x -= es->x_offset;
1061
1062 if (es->style & ES_RIGHT)
1063 x = w - (lw - x);
1064 else if (es->style & ES_CENTER)
1065 x += (w - lw) / 2;
1066 } else {
1067 INT xoff = 0;
1068 INT xi = 0;
1069 EDIT_UpdateUniscribeData(es, NULL, 0);
1070 if (es->x_offset)
1071 {
1072 if (es->x_offset>= get_text_length(es))
1073 {
1074 const SIZE *size;
1075 size = ScriptString_pSize(es->ssa);
1076 xoff = size->cx;
1077 }
1078 ScriptStringCPtoX(es->ssa, es->x_offset, FALSE, &xoff);
1079 }
1080 if (index)
1081 {
1082 if (index >= get_text_length(es))
1083 {
1084 const SIZE *size;
1085 size = ScriptString_pSize(es->ssa);
1086 xi = size->cx;
1087 }
1088 else
1089 ScriptStringCPtoX(es->ssa, index, FALSE, &xi);
1090 }
1091 x = xi - xoff;
1092
1093 if (index >= es->x_offset) {
1094 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
1095 {
1096 w = es->format_rect.right - es->format_rect.left;
1097 if (w > es->text_width)
1098 {
1099 if (es->style & ES_RIGHT)
1100 x += w - es->text_width;
1101 else if (es->style & ES_CENTER)
1102 x += (w - es->text_width) / 2;
1103 }
1104 }
1105 }
1106 y = 0;
1107 }
1108 x += es->format_rect.left;
1109 y += es->format_rect.top;
1110 return MAKELONG((INT16)x, (INT16)y);
1111 }
1112
1113
1114 /*********************************************************************
1115 *
1116 * EDIT_GetLineRect
1117 *
1118 * Calculates the bounding rectangle for a line from a starting
1119 * column to an ending column.
1120 *
1121 */
1122 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1123 {
1124 INT line_index = EDIT_EM_LineIndex(es, line);
1125 INT pt1, pt2;
1126
1127 if (es->style & ES_MULTILINE)
1128 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1129 else
1130 rc->top = es->format_rect.top;
1131 rc->bottom = rc->top + es->line_height;
1132 pt1 = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1133 pt2 = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1134 rc->right = max(pt1 , pt2);
1135 rc->left = min(pt1, pt2);
1136 }
1137
1138
1139 static inline void text_buffer_changed(EDITSTATE *es)
1140 {
1141 es->text_length = (UINT)-1;
1142
1143 HeapFree( GetProcessHeap(), 0, es->logAttr );
1144 es->logAttr = NULL;
1145 EDIT_InvalidateUniscribeData(es);
1146 }
1147
1148 /*********************************************************************
1149 * EDIT_LockBuffer
1150 *
1151 */
1152 static void EDIT_LockBuffer(EDITSTATE *es)
1153 {
1154 if (!es->text) {
1155
1156 if(!es->hloc32W) return;
1157
1158 if(es->hloc32A)
1159 {
1160 CHAR *textA = LocalLock(es->hloc32A);
1161 HLOCAL hloc32W_new;
1162 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
1163 if(countW_new > es->buffer_size + 1)
1164 {
1165 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1166 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1167 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1168 if(hloc32W_new)
1169 {
1170 es->hloc32W = hloc32W_new;
1171 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1172 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1173 }
1174 else
1175 WARN("FAILED! Will synchronize partially\n");
1176 }
1177 es->text = LocalLock(es->hloc32W);
1178 MultiByteToWideChar(CP_ACP, 0, textA, -1, es->text, es->buffer_size + 1);
1179 LocalUnlock(es->hloc32A);
1180 }
1181 else es->text = LocalLock(es->hloc32W);
1182 }
1183 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1184 es->lock_count++;
1185 }
1186
1187
1188 /*********************************************************************
1189 *
1190 * EDIT_UnlockBuffer
1191 *
1192 */
1193 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
1194 {
1195
1196 /* Edit window might be already destroyed */
1197 if(!IsWindow(es->hwndSelf))
1198 {
1199 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
1200 return;
1201 }
1202
1203 if (!es->lock_count) {
1204 ERR("lock_count == 0 ... please report\n");
1205 return;
1206 }
1207 if (!es->text) {
1208 ERR("es->text == 0 ... please report\n");
1209 return;
1210 }
1211
1212 if (force || (es->lock_count == 1)) {
1213 if (es->hloc32W) {
1214 UINT countA = 0;
1215 UINT countW = get_text_length(es) + 1;
1216
1217 if(es->hloc32A)
1218 {
1219 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
1220 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1221 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
1222 countA = LocalSize(es->hloc32A);
1223 if(countA_new > countA)
1224 {
1225 HLOCAL hloc32A_new;
1226 UINT alloc_size = ROUND_TO_GROW(countA_new);
1227 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
1228 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1229 if(hloc32A_new)
1230 {
1231 es->hloc32A = hloc32A_new;
1232 countA = LocalSize(hloc32A_new);
1233 TRACE("Real new size %d bytes\n", countA);
1234 }
1235 else
1236 WARN("FAILED! Will synchronize partially\n");
1237 }
1238 WideCharToMultiByte(CP_ACP, 0, es->text, countW,
1239 LocalLock(es->hloc32A), countA, NULL, NULL);
1240 LocalUnlock(es->hloc32A);
1241 }
1242
1243 LocalUnlock(es->hloc32W);
1244 es->text = NULL;
1245 }
1246 else {
1247 ERR("no buffer ... please report\n");
1248 return;
1249 }
1250 }
1251 es->lock_count--;
1252 }
1253
1254
1255 /*********************************************************************
1256 *
1257 * EDIT_MakeFit
1258 *
1259 * Try to fit size + 1 characters in the buffer.
1260 */
1261 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1262 {
1263 HLOCAL hNew32W;
1264
1265 if (size <= es->buffer_size)
1266 return TRUE;
1267
1268 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1269
1270 /* Force edit to unlock it's buffer. es->text now NULL */
1271 EDIT_UnlockBuffer(es, TRUE);
1272
1273 if (es->hloc32W) {
1274 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1275 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1276 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1277 es->hloc32W = hNew32W;
1278 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1279 }
1280 }
1281
1282 EDIT_LockBuffer(es);
1283
1284 if (es->buffer_size < size) {
1285 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1286 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1287 return FALSE;
1288 } else {
1289 TRACE("We now have %d+1\n", es->buffer_size);
1290 return TRUE;
1291 }
1292 }
1293
1294
1295 /*********************************************************************
1296 *
1297 * EDIT_MakeUndoFit
1298 *
1299 * Try to fit size + 1 bytes in the undo buffer.
1300 *
1301 */
1302 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1303 {
1304 UINT alloc_size;
1305
1306 if (size <= es->undo_buffer_size)
1307 return TRUE;
1308
1309 TRACE("trying to ReAlloc to %d+1\n", size);
1310
1311 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1312 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1313 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1314 return TRUE;
1315 }
1316 else
1317 {
1318 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1319 return FALSE;
1320 }
1321 }
1322
1323
1324 /*********************************************************************
1325 *
1326 * EDIT_UpdateTextRegion
1327 *
1328 */
1329 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
1330 {
1331 if (es->flags & EF_UPDATE) {
1332 es->flags &= ~EF_UPDATE;
1333 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1334 }
1335 InvalidateRgn(es->hwndSelf, hrgn, bErase);
1336 }
1337
1338
1339 /*********************************************************************
1340 *
1341 * EDIT_UpdateText
1342 *
1343 */
1344 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
1345 {
1346 if (es->flags & EF_UPDATE) {
1347 es->flags &= ~EF_UPDATE;
1348 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1349 }
1350 InvalidateRect(es->hwndSelf, rc, bErase);
1351 }
1352
1353 /*********************************************************************
1354 *
1355 * EDIT_SL_InvalidateText
1356 *
1357 * Called from EDIT_InvalidateText().
1358 * Does the job for single-line controls only.
1359 *
1360 */
1361 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1362 {
1363 RECT line_rect;
1364 RECT rc;
1365
1366 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1367 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1368 EDIT_UpdateText(es, &rc, TRUE);
1369 }
1370
1371
1372 static inline INT get_vertical_line_count(EDITSTATE *es)
1373 {
1374 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1375 return max(1,vlc);
1376 }
1377
1378 /*********************************************************************
1379 *
1380 * EDIT_ML_InvalidateText
1381 *
1382 * Called from EDIT_InvalidateText().
1383 * Does the job for multi-line controls only.
1384 *
1385 */
1386 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1387 {
1388 INT vlc = get_vertical_line_count(es);
1389 INT sl = EDIT_EM_LineFromChar(es, start);
1390 INT el = EDIT_EM_LineFromChar(es, end);
1391 INT sc;
1392 INT ec;
1393 RECT rc1;
1394 RECT rcWnd;
1395 RECT rcLine;
1396 RECT rcUpdate;
1397 INT l;
1398
1399 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1400 return;
1401
1402 sc = start - EDIT_EM_LineIndex(es, sl);
1403 ec = end - EDIT_EM_LineIndex(es, el);
1404 if (sl < es->y_offset) {
1405 sl = es->y_offset;
1406 sc = 0;
1407 }
1408 if (el > es->y_offset + vlc) {
1409 el = es->y_offset + vlc;
1410 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1411 }
1412 GetClientRect(es->hwndSelf, &rc1);
1413 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1414 if (sl == el) {
1415 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1416 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1417 EDIT_UpdateText(es, &rcUpdate, TRUE);
1418 } else {
1419 EDIT_GetLineRect(es, sl, sc,
1420 EDIT_EM_LineLength(es,
1421 EDIT_EM_LineIndex(es, sl)),
1422 &rcLine);
1423 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1424 EDIT_UpdateText(es, &rcUpdate, TRUE);
1425 for (l = sl + 1 ; l < el ; l++) {
1426 EDIT_GetLineRect(es, l, 0,
1427 EDIT_EM_LineLength(es,
1428 EDIT_EM_LineIndex(es, l)),
1429 &rcLine);
1430 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1431 EDIT_UpdateText(es, &rcUpdate, TRUE);
1432 }
1433 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1434 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1435 EDIT_UpdateText(es, &rcUpdate, TRUE);
1436 }
1437 }
1438
1439
1440 /*********************************************************************
1441 *
1442 * EDIT_InvalidateText
1443 *
1444 * Invalidate the text from offset start up to, but not including,
1445 * offset end. Useful for (re)painting the selection.
1446 * Regions outside the linewidth are not invalidated.
1447 * end == -1 means end == TextLength.
1448 * start and end need not be ordered.
1449 *
1450 */
1451 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1452 {
1453 if (end == start)
1454 return;
1455
1456 if (end == -1)
1457 end = get_text_length(es);
1458
1459 if (end < start) {
1460 INT tmp = start;
1461 start = end;
1462 end = tmp;
1463 }
1464
1465 if (es->style & ES_MULTILINE)
1466 EDIT_ML_InvalidateText(es, start, end);
1467 else
1468 EDIT_SL_InvalidateText(es, start, end);
1469 }
1470
1471
1472 /*********************************************************************
1473 *
1474 * EDIT_EM_SetSel
1475 *
1476 * note: unlike the specs say: the order of start and end
1477 * _is_ preserved in Windows. (i.e. start can be > end)
1478 * In other words: this handler is OK
1479 *
1480 */
1481 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
1482 {
1483 UINT old_start = es->selection_start;
1484 UINT old_end = es->selection_end;
1485 UINT len = get_text_length(es);
1486
1487 if (start == (UINT)-1) {
1488 start = es->selection_end;
1489 end = es->selection_end;
1490 } else {
1491 start = min(start, len);
1492 end = min(end, len);
1493 }
1494 es->selection_start = start;
1495 es->selection_end = end;
1496 if (after_wrap)
1497 es->flags |= EF_AFTER_WRAP;
1498 else
1499 es->flags &= ~EF_AFTER_WRAP;
1500 /* Compute the necessary invalidation region. */
1501 /* Note that we don't need to invalidate regions which have
1502 * "never" been selected, or those which are "still" selected.
1503 * In fact, every time we hit a selection boundary, we can
1504 * *toggle* whether we need to invalidate. Thus we can optimize by
1505 * *sorting* the interval endpoints. Let's assume that we sort them
1506 * in this order:
1507 * start <= end <= old_start <= old_end
1508 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
1509 * in 5 comparisons; i.e. it is impossible to do better than the
1510 * following: */
1511 ORDER_UINT(end, old_end);
1512 ORDER_UINT(start, old_start);
1513 ORDER_UINT(old_start, old_end);
1514 ORDER_UINT(start, end);
1515 /* Note that at this point 'end' and 'old_start' are not in order, but
1516 * start is definitely the min. and old_end is definitely the max. */
1517 if (end != old_start)
1518 {
1519 /*
1520 * One can also do
1521 * ORDER_UINT32(end, old_start);
1522 * EDIT_InvalidateText(es, start, end);
1523 * EDIT_InvalidateText(es, old_start, old_end);
1524 * in place of the following if statement.
1525 * (That would complete the optimal five-comparison four-element sort.)
1526 */
1527 if (old_start > end )
1528 {
1529 EDIT_InvalidateText(es, start, end);
1530 EDIT_InvalidateText(es, old_start, old_end);
1531 }
1532 else
1533 {
1534 EDIT_InvalidateText(es, start, old_start);
1535 EDIT_InvalidateText(es, end, old_end);
1536 }
1537 }
1538 else EDIT_InvalidateText(es, start, old_end);
1539 }
1540
1541
1542 /*********************************************************************
1543 *
1544 * EDIT_UpdateScrollInfo
1545 *
1546 */
1547 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
1548 {
1549 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
1550 {
1551 SCROLLINFO si;
1552 si.cbSize = sizeof(SCROLLINFO);
1553 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1554 si.nMin = 0;
1555 si.nMax = es->line_count - 1;
1556 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1557 si.nPos = es->y_offset;
1558 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1559 si.nMin, si.nMax, si.nPage, si.nPos);
1560 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
1561 }
1562
1563 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
1564 {
1565 SCROLLINFO si;
1566 si.cbSize = sizeof(SCROLLINFO);
1567 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1568 si.nMin = 0;
1569 si.nMax = es->text_width - 1;
1570 si.nPage = es->format_rect.right - es->format_rect.left;
1571 si.nPos = es->x_offset;
1572 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1573 si.nMin, si.nMax, si.nPage, si.nPos);
1574 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
1575 }
1576 }
1577
1578
1579 /*********************************************************************
1580 *
1581 * EDIT_EM_LineScroll_internal
1582 *
1583 * Version of EDIT_EM_LineScroll for internal use.
1584 * It doesn't refuse if ES_MULTILINE is set and assumes that
1585 * dx is in pixels, dy - in lines.
1586 *
1587 */
1588 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
1589 {
1590 INT nyoff;
1591 INT x_offset_in_pixels;
1592 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
1593 es->line_height;
1594
1595 if (es->style & ES_MULTILINE)
1596 {
1597 x_offset_in_pixels = es->x_offset;
1598 }
1599 else
1600 {
1601 dy = 0;
1602 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
1603 }
1604
1605 if (-dx > x_offset_in_pixels)
1606 dx = -x_offset_in_pixels;
1607 if (dx > es->text_width - x_offset_in_pixels)
1608 dx = es->text_width - x_offset_in_pixels;
1609 nyoff = max(0, es->y_offset + dy);
1610 if (nyoff >= es->line_count - lines_per_page)
1611 nyoff = max(0, es->line_count - lines_per_page);
1612 dy = (es->y_offset - nyoff) * es->line_height;
1613 if (dx || dy) {
1614 RECT rc1;
1615 RECT rc;
1616
1617 es->y_offset = nyoff;
1618 if(es->style & ES_MULTILINE)
1619 es->x_offset += dx;
1620 else
1621 es->x_offset += dx / es->char_width;
1622
1623 GetClientRect(es->hwndSelf, &rc1);
1624 IntersectRect(&rc, &rc1, &es->format_rect);
1625 ScrollWindowEx(es->hwndSelf, -dx, dy,
1626 NULL, &rc, NULL, NULL, SW_INVALIDATE);
1627 /* force scroll info update */
1628 EDIT_UpdateScrollInfo(es);
1629 }
1630 if (dx && !(es->flags & EF_HSCROLL_TRACK))
1631 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
1632 if (dy && !(es->flags & EF_VSCROLL_TRACK))
1633 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
1634 return TRUE;
1635 }
1636
1637 /*********************************************************************
1638 *
1639 * EM_LINESCROLL
1640 *
1641 * NOTE: dx is in average character widths, dy - in lines;
1642 *
1643 */
1644 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
1645 {
1646 if (!(es->style & ES_MULTILINE))
1647 return FALSE;
1648
1649 dx *= es->char_width;
1650 return EDIT_EM_LineScroll_internal(es, dx, dy);
1651 }
1652
1653
1654 /*********************************************************************
1655 *
1656 * EM_SCROLL
1657 *
1658 */
1659 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
1660 {
1661 INT dy;
1662
1663 if (!(es->style & ES_MULTILINE))
1664 return (LRESULT)FALSE;
1665
1666 dy = 0;
1667
1668 switch (action) {
1669 case SB_LINEUP:
1670 if (es->y_offset)
1671 dy = -1;
1672 break;
1673 case SB_LINEDOWN:
1674 if (es->y_offset < es->line_count - 1)
1675 dy = 1;
1676 break;
1677 case SB_PAGEUP:
1678 if (es->y_offset)
1679 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
1680 break;
1681 case SB_PAGEDOWN:
1682 if (es->y_offset < es->line_count - 1)
1683 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1684 break;
1685 default:
1686 return (LRESULT)FALSE;
1687 }
1688 if (dy) {
1689 INT vlc = get_vertical_line_count(es);
1690 /* check if we are going to move too far */
1691 if(es->y_offset + dy > es->line_count - vlc)
1692 dy = max(es->line_count - vlc, 0) - es->y_offset;
1693
1694 /* Notification is done in EDIT_EM_LineScroll */
1695 if(dy) {
1696 EDIT_EM_LineScroll(es, 0, dy);
1697 return MAKELONG(dy, TRUE);
1698 }
1699
1700 }
1701 return (LRESULT)FALSE;
1702 }
1703
1704
1705 /*********************************************************************
1706 *
1707 * EDIT_SetCaretPos
1708 *
1709 */
1710 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
1711 BOOL after_wrap)
1712 {
1713 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
1714 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
1715 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
1716 }
1717
1718
1719 /*********************************************************************
1720 *
1721 * EM_SCROLLCARET
1722 *
1723 */
1724 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
1725 {
1726 if (es->style & ES_MULTILINE) {
1727 INT l;
1728 INT vlc;
1729 INT ww;
1730 INT cw = es->char_width;
1731 INT x;
1732 INT dy = 0;
1733 INT dx = 0;
1734
1735 l = EDIT_EM_LineFromChar(es, es->selection_end);
1736 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
1737 vlc = get_vertical_line_count(es);
1738 if (l >= es->y_offset + vlc)
1739 dy = l - vlc + 1 - es->y_offset;
1740 if (l < es->y_offset)
1741 dy = l - es->y_offset;
1742 ww = es->format_rect.right - es->format_rect.left;
1743 if (x < es->format_rect.left)
1744 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
1745 if (x > es->format_rect.right)
1746 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
1747 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1748 {
1749 /* check if we are going to move too far */
1750 if(es->x_offset + dx + ww > es->text_width)
1751 dx = es->text_width - ww - es->x_offset;
1752 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1753 EDIT_EM_LineScroll_internal(es, dx, dy);
1754 }
1755 } else {
1756 INT x;
1757 INT goal;
1758 INT format_width;
1759
1760 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1761 format_width = es->format_rect.right - es->format_rect.left;
1762 if (x < es->format_rect.left) {
1763 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
1764 do {
1765 es->x_offset--;
1766 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1767 } while ((x < goal) && es->x_offset);
1768 /* FIXME: use ScrollWindow() somehow to improve performance */
1769 EDIT_UpdateText(es, NULL, TRUE);
1770 } else if (x > es->format_rect.right) {
1771 INT x_last;
1772 INT len = get_text_length(es);
1773 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
1774 do {
1775 es->x_offset++;
1776 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1777 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
1778 } while ((x > goal) && (x_last > es->format_rect.right));
1779 /* FIXME: use ScrollWindow() somehow to improve performance */
1780 EDIT_UpdateText(es, NULL, TRUE);
1781 }
1782 }
1783
1784 if(es->flags & EF_FOCUSED)
1785 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
1786 }
1787
1788
1789 /*********************************************************************
1790 *
1791 * EDIT_MoveBackward
1792 *
1793 */
1794 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1795 {
1796 INT e = es->selection_end;
1797
1798 if (e) {
1799 e--;
1800 if ((es->style & ES_MULTILINE) && e &&
1801 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1802 e--;
1803 if (e && (es->text[e - 1] == '\r'))
1804 e--;
1805 }
1806 }
1807 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1808 EDIT_EM_ScrollCaret(es);
1809 }
1810
1811
1812 /*********************************************************************
1813 *
1814 * EDIT_MoveDown_ML
1815 *
1816 * Only for multi line controls
1817 * Move the caret one line down, on a column with the nearest
1818 * x coordinate on the screen (might be a different column).
1819 *
1820 */
1821 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1822 {
1823 INT s = es->selection_start;
1824 INT e = es->selection_end;
1825 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1826 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1827 INT x = (short)LOWORD(pos);
1828 INT y = (short)HIWORD(pos);
1829
1830 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1831 if (!extend)
1832 s = e;
1833 EDIT_EM_SetSel(es, s, e, after_wrap);
1834 EDIT_EM_ScrollCaret(es);
1835 }
1836
1837
1838 /*********************************************************************
1839 *
1840 * EDIT_MoveEnd
1841 *
1842 */
1843 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
1844 {
1845 BOOL after_wrap = FALSE;
1846 INT e;
1847
1848 /* Pass a high value in x to make sure of receiving the end of the line */
1849 if (!ctrl && (es->style & ES_MULTILINE))
1850 e = EDIT_CharFromPos(es, 0x3fffffff,
1851 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1852 else
1853 e = get_text_length(es);
1854 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1855 EDIT_EM_ScrollCaret(es);
1856 }
1857
1858
1859 /*********************************************************************
1860 *
1861 * EDIT_MoveForward
1862 *
1863 */
1864 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1865 {
1866 INT e = es->selection_end;
1867
1868 if (es->text[e]) {
1869 e++;
1870 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1871 if (es->text[e] == '\n')
1872 e++;
1873 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1874 e += 2;
1875 }
1876 }
1877 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1878 EDIT_EM_ScrollCaret(es);
1879 }
1880
1881
1882 /*********************************************************************
1883 *
1884 * EDIT_MoveHome
1885 *
1886 * Home key: move to beginning of line.
1887 *
1888 */
1889 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
1890 {
1891 INT e;
1892
1893 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1894 if (!ctrl && (es->style & ES_MULTILINE))
1895 e = EDIT_CharFromPos(es, -es->x_offset,
1896 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1897 else
1898 e = 0;
1899 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1900 EDIT_EM_ScrollCaret(es);
1901 }
1902
1903
1904 /*********************************************************************
1905 *
1906 * EDIT_MovePageDown_ML
1907 *
1908 * Only for multi line controls
1909 * Move the caret one page down, on a column with the nearest
1910 * x coordinate on the screen (might be a different column).
1911 *
1912 */
1913 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1914 {
1915 INT s = es->selection_start;
1916 INT e = es->selection_end;
1917 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1918 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1919 INT x = (short)LOWORD(pos);
1920 INT y = (short)HIWORD(pos);
1921
1922 e = EDIT_CharFromPos(es, x,
1923 y + (es->format_rect.bottom - es->format_rect.top),
1924 &after_wrap);
1925 if (!extend)
1926 s = e;
1927 EDIT_EM_SetSel(es, s, e, after_wrap);
1928 EDIT_EM_ScrollCaret(es);
1929 }
1930
1931
1932 /*********************************************************************
1933 *
1934 * EDIT_MovePageUp_ML
1935 *
1936 * Only for multi line controls
1937 * Move the caret one page up, on a column with the nearest
1938 * x coordinate on the screen (might be a different column).
1939 *
1940 */
1941 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1942 {
1943 INT s = es->selection_start;
1944 INT e = es->selection_end;
1945 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1946 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1947 INT x = (short)LOWORD(pos);
1948 INT y = (short)HIWORD(pos);
1949
1950 e = EDIT_CharFromPos(es, x,
1951 y - (es->format_rect.bottom - es->format_rect.top),
1952 &after_wrap);
1953 if (!extend)
1954 s = e;
1955 EDIT_EM_SetSel(es, s, e, after_wrap);
1956 EDIT_EM_ScrollCaret(es);
1957 }
1958
1959
1960 /*********************************************************************
1961 *
1962 * EDIT_MoveUp_ML
1963 *
1964 * Only for multi line controls
1965 * Move the caret one line up, on a column with the nearest
1966 * x coordinate on the screen (might be a different column).
1967 *
1968 */
1969 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1970 {
1971 INT s = es->selection_start;
1972 INT e = es->selection_end;
1973 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1974 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1975 INT x = (short)LOWORD(pos);
1976 INT y = (short)HIWORD(pos);
1977
1978 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1979 if (!extend)
1980 s = e;
1981 EDIT_EM_SetSel(es, s, e, after_wrap);
1982 EDIT_EM_ScrollCaret(es);
1983 }
1984
1985
1986 /*********************************************************************
1987 *
1988 * EDIT_MoveWordBackward
1989 *
1990 */
1991 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1992 {
1993 INT s = es->selection_start;
1994 INT e = es->selection_end;
1995 INT l;
1996 INT ll;
1997 INT li;
1998
1999 l = EDIT_EM_LineFromChar(es, e);
2000 ll = EDIT_EM_LineLength(es, e);
2001 li = EDIT_EM_LineIndex(es, l);
2002 if (e - li == 0) {
2003 if (l) {
2004 li = EDIT_EM_LineIndex(es, l - 1);
2005 e = li + EDIT_EM_LineLength(es, li);
2006 }
2007 } else {
2008 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2009 }
2010 if (!extend)
2011 s = e;
2012 EDIT_EM_SetSel(es, s, e, FALSE);
2013 EDIT_EM_ScrollCaret(es);
2014 }
2015
2016
2017 /*********************************************************************
2018 *
2019 * EDIT_MoveWordForward
2020 *
2021 */
2022 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2023 {
2024 INT s = es->selection_start;
2025 INT e = es->selection_end;
2026 INT l;
2027 INT ll;
2028 INT li;
2029
2030 l = EDIT_EM_LineFromChar(es, e);
2031 ll = EDIT_EM_LineLength(es, e);
2032 li = EDIT_EM_LineIndex(es, l);
2033 if (e - li == ll) {
2034 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2035 e = EDIT_EM_LineIndex(es, l + 1);
2036 } else {
2037 e = li + EDIT_CallWordBreakProc(es,
2038 li, e - li + 1, ll, WB_RIGHT);
2039 }
2040 if (!extend)
2041 s = e;
2042 EDIT_EM_SetSel(es, s, e, FALSE);
2043 EDIT_EM_ScrollCaret(es);
2044 }
2045
2046
2047 /*********************************************************************
2048 *
2049 * EDIT_PaintText
2050 *
2051 */
2052 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2053 {
2054 COLORREF BkColor;
2055 COLORREF TextColor;
2056 LOGFONTW underline_font;
2057 HFONT hUnderline = 0;
2058 HFONT old_font = 0;
2059 INT ret;
2060 INT li;
2061 INT BkMode;
2062 SIZE size;
2063
2064 if (!count)
2065 return 0;
2066 BkMode = GetBkMode(dc);
2067 BkColor = GetBkColor(dc);
2068 TextColor = GetTextColor(dc);
2069 if (rev) {
2070 if (es->composition_len == 0)
2071 {
2072 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2073 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2074 SetBkMode( dc, OPAQUE);
2075 }
2076 else
2077 {
2078 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2079 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2080 underline_font.lfUnderline = TRUE;
2081 hUnderline = CreateFontIndirectW(&underline_font);
2082 old_font = SelectObject(dc,hUnderline);
2083 }
2084 }
2085 li = EDIT_EM_LineIndex(es, line);
2086 if (es->style & ES_MULTILINE) {
2087 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2088 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2089 } else {
2090 LPWSTR text = es->text;
2091 TextOutW(dc, x, y, text + li + col, count);
2092 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2093 ret = size.cx;
2094 if (es->style & ES_PASSWORD)
2095 HeapFree(GetProcessHeap(), 0, text);
2096 }
2097 if (rev) {
2098 if (es->composition_len == 0)
2099 {
2100 SetBkColor(dc, BkColor);
2101 SetTextColor(dc, TextColor);
2102 SetBkMode( dc, BkMode);
2103 }
2104 else
2105 {
2106 if (old_font)
2107 SelectObject(dc,old_font);
2108 if (hUnderline)
2109 DeleteObject(hUnderline);
2110 }
2111 }
2112 return ret;
2113 }
2114
2115
2116 /*********************************************************************
2117 *
2118 * EDIT_PaintLine
2119 *
2120 */
2121 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2122 {
2123 INT s;
2124 INT e;
2125 INT li;
2126 INT ll;
2127 INT x;
2128 INT y;
2129 LRESULT pos;
2130 SCRIPT_STRING_ANALYSIS ssa;
2131
2132 if (es->style & ES_MULTILINE) {
2133 INT vlc = get_vertical_line_count(es);
2134
2135 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2136 return;
2137 } else if (line)
2138 return;
2139
2140 TRACE("line=%d\n", line);
2141
2142 ssa = EDIT_UpdateUniscribeData(es, dc, line);
2143 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2144 x = (short)LOWORD(pos);
2145 y = (short)HIWORD(pos);
2146
2147 if (es->style & ES_MULTILINE)
2148 {
2149 int line_idx = line;
2150 x = -es->x_offset;
2151 if (es->style & ES_RIGHT || es->style & ES_CENTER)
2152 {
2153 LINEDEF *line_def = es->first_line_def;
2154 int w, lw;
2155
2156 while (line_def && line_idx)
2157 {
2158 line_def = line_def->next;
2159 line_idx--;
2160 }
2161 w = es->format_rect.right - es->format_rect.left;
2162 lw = line_def->width;
2163
2164 if (es->style & ES_RIGHT)
2165 x = w - (lw - x);
2166 else if (es->style & ES_CENTER)
2167 x += (w - lw) / 2;
2168 }
2169 x += es->format_rect.left;
2170 }
2171
2172 li = EDIT_EM_LineIndex(es, line);
2173 ll = EDIT_EM_LineLength(es, li);
2174 s = min(es->selection_start, es->selection_end);
2175 e = max(es->selection_start, es->selection_end);
2176 s = min(li + ll, max(li, s));
2177 e = min(li + ll, max(li, e));
2178 if (ssa)
2179 ScriptStringOut(ssa, x, y, 0, &es->format_rect, s - li, e - li, FALSE);
2180 else if (rev && (s != e) &&
2181 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2182 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2183 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2184 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2185 } else
2186 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2187 }
2188
2189
2190 /*********************************************************************
2191 *
2192 * EDIT_AdjustFormatRect
2193 *
2194 * Adjusts the format rectangle for the current font and the
2195 * current client rectangle.
2196 *
2197 */
2198 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2199 {
2200 RECT ClientRect;
2201
2202 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2203 if (es->style & ES_MULTILINE)
2204 {
2205 INT fw, vlc, max_x_offset, max_y_offset;
2206
2207 vlc = get_vertical_line_count(es);
2208 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2209
2210 /* correct es->x_offset */
2211 fw = es->format_rect.right - es->format_rect.left;
2212 max_x_offset = es->text_width - fw;
2213 if(max_x_offset < 0) max_x_offset = 0;
2214 if(es->x_offset > max_x_offset)
2215 es->x_offset = max_x_offset;
2216
2217 /* correct es->y_offset */
2218 max_y_offset = es->line_count - vlc;
2219 if(max_y_offset < 0) max_y_offset = 0;
2220 if(es->y_offset > max_y_offset)
2221 es->y_offset = max_y_offset;
2222
2223 /* force scroll info update */
2224 EDIT_UpdateScrollInfo(es);
2225 }
2226 else
2227 /* Windows doesn't care to fix text placement for SL controls */
2228 es->format_rect.bottom = es->format_rect.top + es->line_height;
2229
2230 /* Always stay within the client area */
2231 GetClientRect(es->hwndSelf, &ClientRect);
2232 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2233
2234 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2235 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2236
2237 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2238 }
2239
2240
2241 /*********************************************************************
2242 *
2243 * EDIT_SetRectNP
2244 *
2245 * note: this is not (exactly) the handler called on EM_SETRECTNP
2246 * it is also used to set the rect of a single line control
2247 *
2248 */
2249 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2250 {
2251 LONG_PTR ExStyle;
2252 INT bw, bh;
2253 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2254
2255 CopyRect(&es->format_rect, rc);
2256
2257 if (ExStyle & WS_EX_CLIENTEDGE) {
2258 es->format_rect.left++;
2259 es->format_rect.right--;
2260
2261 if (es->format_rect.bottom - es->format_rect.top
2262 >= es->line_height + 2)
2263 {
2264 es->format_rect.top++;
2265 es->format_rect.bottom--;
2266 }
2267 }
2268 else if (es->style & WS_BORDER) {
2269 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2270 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2271 es->format_rect.left += bw;
2272 es->format_rect.right -= bw;
2273 if (es->format_rect.bottom - es->format_rect.top
2274 >= es->line_height + 2 * bh)
2275 {
2276 es->format_rect.top += bh;
2277 es->format_rect.bottom -= bh;
2278 }
2279 }
2280
2281 es->format_rect.left += es->left_margin;
2282 es->format_rect.right -= es->right_margin;
2283 EDIT_AdjustFormatRect(es);
2284 }
2285
2286
2287 /*********************************************************************
2288 *
2289 * EM_CHARFROMPOS
2290 *
2291 * returns line number (not index) in high-order word of result.
2292 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2293 * to Richedit, not to the edit control. Original documentation is valid.
2294 * FIXME: do the specs mean to return -1 if outside client area or
2295 * if outside formatting rectangle ???
2296 *
2297 */
2298 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2299 {
2300 POINT pt;
2301 RECT rc;
2302 INT index;
2303
2304 pt.x = x;
2305 pt.y = y;
2306 GetClientRect(es->hwndSelf, &rc);
2307 if (!PtInRect(&rc, pt))
2308 return -1;
2309
2310 index = EDIT_CharFromPos(es, x, y, NULL);
2311 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2312 }
2313
2314
2315 /*********************************************************************
2316 *
2317 * EM_FMTLINES
2318 *
2319 * Enable or disable soft breaks.
2320 *
2321 * This means: insert or remove the soft linebreak character (\r\r\n).
2322 * Take care to check if the text still fits the buffer after insertion.
2323 * If not, notify with EN_ERRSPACE.
2324 *
2325 */
2326 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2327 {
2328 es->flags &= ~EF_USE_SOFTBRK;
2329 if (add_eol) {
2330 es->flags |= EF_USE_SOFTBRK;
2331 FIXME("soft break enabled, not implemented\n");
2332 }
2333 return add_eol;
2334 }
2335
2336
2337 /*********************************************************************
2338 *
2339 * EM_GETHANDLE
2340 *
2341 * Hopefully this won't fire back at us.
2342 * We always start with a fixed buffer in the local heap.
2343 * Despite of the documentation says that the local heap is used
2344 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2345 * buffer on the local heap.
2346 *
2347 */
2348 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2349 {
2350 HLOCAL hLocal;
2351
2352 if (!(es->style & ES_MULTILINE))
2353 return 0;
2354
2355 if(es->is_unicode)
2356 hLocal = es->hloc32W;
2357 else
2358 {
2359 if(!es->hloc32A)
2360 {
2361 CHAR *textA;
2362 UINT countA, alloc_size;
2363 TRACE("Allocating 32-bit ANSI alias buffer\n");
2364 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2365 alloc_size = ROUND_TO_GROW(countA);
2366 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2367 {
2368 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2369 return 0;
2370 }
2371 textA = LocalLock(es->hloc32A);
2372 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2373 LocalUnlock(es->hloc32A);
2374 }
2375 hLocal = es->hloc32A;
2376 }
2377
2378 es->flags |= EF_APP_HAS_HANDLE;
2379 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2380 return hLocal;
2381 }
2382
2383
2384 /*********************************************************************
2385 *
2386 * EM_GETLINE
2387 *
2388 */
2389 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2390 {
2391 LPWSTR src;
2392 INT line_len, dst_len;
2393 INT i;
2394
2395 if (es->style & ES_MULTILINE) {
2396 if (line >= es->line_count)
2397 return 0;
2398 } else
2399 line = 0;
2400 i = EDIT_EM_LineIndex(es, line);
2401 src = es->text + i;
2402 line_len = EDIT_EM_LineLength(es, i);
2403 dst_len = *(WORD *)dst;
2404 if(unicode)
2405 {
2406 if(dst_len <= line_len)
2407 {
2408 memcpy(dst, src, dst_len * sizeof(WCHAR));
2409 return dst_len;
2410 }
2411 else /* Append 0 if enough space */
2412 {
2413 memcpy(dst, src, line_len * sizeof(WCHAR));
2414 dst[line_len] = 0;
2415 return line_len;
2416 }
2417 }
2418 else
2419 {
2420 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2421 if(!ret && line_len) /* Insufficient buffer size */
2422 return dst_len;
2423 if(ret < dst_len) /* Append 0 if enough space */
2424 ((LPSTR)dst)[ret] = 0;
2425 return ret;
2426 }
2427 }
2428
2429
2430 /*********************************************************************
2431 *
2432 * EM_GETSEL
2433 *
2434 */
2435 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2436 {
2437 UINT s = es->selection_start;
2438 UINT e = es->selection_end;
2439
2440 ORDER_UINT(s, e);
2441 if (start)
2442 *start = s;
2443 if (end)
2444 *end = e;
2445 return MAKELONG(s, e);
2446 }
2447
2448
2449 /*********************************************************************
2450 *
2451 * EM_REPLACESEL
2452 *
2453 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2454 *
2455 */
2456 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2457 {
2458 UINT strl = strlenW(lpsz_replace);
2459 UINT tl = get_text_length(es);
2460 UINT utl;
2461 UINT s;
2462 UINT e;
2463 UINT i;
2464 UINT size;
2465 LPWSTR p;
2466 HRGN hrgn = 0;
2467 LPWSTR buf = NULL;
2468 UINT bufl = 0;
2469
2470 TRACE("%s, can_undo %d, send_update %d\n",
2471 debugstr_w(lpsz_replace), can_undo, send_update);
2472
2473 s = es->selection_start;
2474 e = es->selection_end;
2475
2476 EDIT_InvalidateUniscribeData(es);
2477 if ((s == e) && !strl)
2478 return;
2479
2480 ORDER_UINT(s, e);
2481
2482 size = tl - (e - s) + strl;
2483 if (!size)
2484 es->text_width = 0;
2485
2486 /* Issue the EN_MAXTEXT notification and continue with replacing text
2487 * such that buffer limit is honored. */
2488 if ((honor_limit) && (size > es->buffer_limit)) {
2489 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2490 /* Buffer limit can be smaller than the actual length of text in combobox */
2491 if (es->buffer_limit < (tl - (e-s)))
2492 strl = 0;
2493 else
2494 strl = es->buffer_limit - (tl - (e-s));
2495 }
2496
2497 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2498 return;
2499
2500 if (e != s) {
2501 /* there is something to be deleted */
2502 TRACE("deleting stuff.\n");
2503 bufl = e - s;
2504 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
2505 if (!buf) return;
2506 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
2507 buf[bufl] = 0; /* ensure 0 termination */
2508 /* now delete */
2509 strcpyW(es->text + s, es->text + e);
2510 text_buffer_changed(es);
2511 }
2512 if (strl) {
2513 /* there is an insertion */
2514 tl = get_text_length(es);
2515 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));
2516 for (p = es->text + tl ; p >= es->text + s ; p--)
2517 p[strl] = p[0];
2518 for (i = 0 , p = es->text + s ; i < strl ; i++)
2519 p[i] = lpsz_replace[i];
2520 if(es->style & ES_UPPERCASE)
2521 CharUpperBuffW(p, strl);
2522 else if(es->style & ES_LOWERCASE)
2523 CharLowerBuffW(p, strl);
2524 text_buffer_changed(es);
2525 }
2526 if (es->style & ES_MULTILINE)
2527 {
2528 INT st = min(es->selection_start, es->selection_end);
2529 INT vlc = get_vertical_line_count(es);
2530
2531 hrgn = CreateRectRgn(0, 0, 0, 0);
2532 EDIT_BuildLineDefs_ML(es, st, st + strl,
2533 strl - abs(es->selection_end - es->selection_start), hrgn);
2534 /* if text is too long undo all changes */
2535 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
2536 if (strl)
2537 strcpyW(es->text + e, es->text + e + strl);
2538 if (e != s)
2539 for (i = 0 , p = es->text ; i < e - s ; i++)
2540 p[i + s] = buf[i];
2541 text_buffer_changed(es);
2542 EDIT_BuildLineDefs_ML(es, s, e,
2543 abs(es->selection_end - es->selection_start) - strl, hrgn);
2544 strl = 0;
2545 e = s;
2546 hrgn = CreateRectRgn(0, 0, 0, 0);
2547 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2548 }
2549 }
2550 else {
2551 INT fw = es->format_rect.right - es->format_rect.left;
2552 EDIT_InvalidateUniscribeData(es);
2553 EDIT_CalcLineWidth_SL(es);
2554 /* remove chars that don't fit */
2555 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
2556 while ((es->text_width > fw) && s + strl >= s) {
2557 strcpyW(es->text + s + strl - 1, es->text + s + strl);
2558 strl--;
2559 es->text_length = -1;
2560 EDIT_InvalidateUniscribeData(es);
2561 EDIT_CalcLineWidth_SL(es);
2562 }
2563 text_buffer_changed(es);
2564 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2565 }
2566 }
2567
2568 if (e != s) {
2569 if (can_undo) {
2570 utl = strlenW(es->undo_text);
2571 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2572 /* undo-buffer is extended to the right */
2573 EDIT_MakeUndoFit(es, utl + e - s);
2574 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
2575 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2576 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2577 /* undo-buffer is extended to the left */
2578 EDIT_MakeUndoFit(es, utl + e - s);
2579 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2580 p[e - s] = p[0];
2581 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2582 p[i] = buf[i];
2583 es->undo_position = s;
2584 } else {
2585 /* new undo-buffer */
2586 EDIT_MakeUndoFit(es, e - s);
2587 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
2588 es->undo_text[e - s] = 0; /* ensure 0 termination */
2589 es->undo_position = s;
2590 }
2591 /* any deletion makes the old insertion-undo invalid */
2592 es->undo_insert_count = 0;
2593 } else
2594 EDIT_EM_EmptyUndoBuffer(es);
2595 }
2596 if (strl) {
2597 if (can_undo) {
2598 if ((s == es->undo_position) ||
2599 ((es->undo_insert_count) &&
2600 (s == es->undo_position + es->undo_insert_count)))
2601 /*
2602 * insertion is new and at delete position or
2603 * an extension to either left or right
2604 */
2605 es->undo_insert_count += strl;
2606 else {
2607 /* new insertion undo */
2608 es->undo_position = s;
2609 es->undo_insert_count = strl;
2610 /* new insertion makes old delete-buffer invalid */
2611 *es->undo_text = '\0';
2612 }
2613 } else
2614 EDIT_EM_EmptyUndoBuffer(es);
2615 }
2616
2617 if (bufl)
2618 HeapFree(GetProcessHeap(), 0, buf);
2619
2620 s += strl;
2621
2622 /* If text has been deleted and we're right or center aligned then scroll rightward */
2623 if (es->style & (ES_RIGHT | ES_CENTER))
2624 {
2625 INT delta = strl - abs(es->selection_end - es->selection_start);
2626
2627 if (delta < 0 && es->x_offset)
2628 {
2629 if (abs(delta) > es->x_offset)
2630 es->x_offset = 0;
2631 else
2632 es->x_offset += delta;
2633 }
2634 }
2635
2636 EDIT_EM_SetSel(es, s, s, FALSE);
2637 es->flags |= EF_MODIFIED;
2638 if (send_update) es->flags |= EF_UPDATE;
2639 if (hrgn)
2640 {
2641 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2642 DeleteObject(hrgn);
2643 }
2644 else
2645 EDIT_UpdateText(es, NULL, TRUE);
2646
2647 EDIT_EM_ScrollCaret(es);
2648
2649 /* force scroll info update */
2650 EDIT_UpdateScrollInfo(es);
2651
2652
2653 if(send_update || (es->flags & EF_UPDATE))
2654 {
2655 es->flags &= ~EF_UPDATE;
2656 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2657 }
2658 EDIT_InvalidateUniscribeData(es);
2659 }
2660
2661
2662 /*********************************************************************
2663 *
2664 * EM_SETHANDLE
2665 *
2666 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2667 *
2668 */
2669 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
2670 {
2671 if (!(es->style & ES_MULTILINE))
2672 return;
2673
2674 if (!hloc) {
2675 WARN("called with NULL handle\n");
2676 return;
2677 }
2678
2679 EDIT_UnlockBuffer(es, TRUE);
2680
2681 if(es->is_unicode)
2682 {
2683 if(es->hloc32A)
2684 {
2685 LocalFree(es->hloc32A);
2686 es->hloc32A = NULL;
2687 }
2688 es->hloc32W = hloc;
2689 }
2690 else
2691 {
2692 INT countW, countA;
2693 HLOCAL hloc32W_new;
2694 WCHAR *textW;
2695 CHAR *textA;
2696
2697 countA = LocalSize(hloc);
2698 textA = LocalLock(hloc);
2699 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
2700 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
2701 {
2702 ERR("Could not allocate new unicode buffer\n");
2703 return;
2704 }
2705 textW = LocalLock(hloc32W_new);
2706 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
2707 LocalUnlock(hloc32W_new);
2708 LocalUnlock(hloc);
2709
2710 if(es->hloc32W)
2711 LocalFree(es->hloc32W);
2712
2713 es->hloc32W = hloc32W_new;
2714 es->hloc32A = hloc;
2715 }
2716
2717 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
2718
2719 es->flags |= EF_APP_HAS_HANDLE;
2720 EDIT_LockBuffer(es);
2721
2722 es->x_offset = es->y_offset = 0;
2723 es->selection_start = es->selection_end = 0;
2724 EDIT_EM_EmptyUndoBuffer(es);
2725 es->flags &= ~EF_MODIFIED;
2726 es->flags &= ~EF_UPDATE;
2727 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2728 EDIT_UpdateText(es, NULL, TRUE);
2729 EDIT_EM_ScrollCaret(es);
2730 /* force scroll info update */
2731 EDIT_UpdateScrollInfo(es);
2732 }
2733
2734
2735 /*********************************************************************
2736 *
2737 * EM_SETLIMITTEXT
2738 *
2739 * NOTE: this version currently implements WinNT limits
2740 *
2741 */
2742 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
2743 {
2744 if (!limit) limit = ~0u;
2745 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
2746 es->buffer_limit = limit;
2747 }
2748
2749
2750 /*********************************************************************
2751 *
2752 * EM_SETMARGINS
2753 *
2754 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2755 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
2756 * margin according to the textmetrics of the current font.
2757 *
2758 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
2759 * of the char's width as the margin, but this is not how Windows handles this.
2760 * For all other fonts Windows sets the margins to zero.
2761 *
2762 * FIXME - When EC_USEFONTINFO is used the margins only change if the
2763 * edit control is equal to or larger than a certain size.
2764 * Interestingly if one subtracts both the left and right margins from
2765 * this size one always seems to get an even number. The extents of
2766 * the (four character) string "'**'" match this quite closely, so
2767 * we'll use this until we come up with a better idea.
2768 */
2769 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
2770 {
2771 WCHAR magic_string[] = {'\'','*','*','\'', 0};
2772 SIZE sz;
2773
2774 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
2775 return sz.cx + left + right;
2776 }
2777
2778 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
2779 WORD left, WORD right, BOOL repaint)
2780 {
2781 TEXTMETRICW tm;
2782 INT default_left_margin = 0; /* in pixels */
2783 INT default_right_margin = 0; /* in pixels */
2784
2785 /* Set the default margins depending on the font */
2786 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
2787 HDC dc = GetDC(es->hwndSelf);
2788 HFONT old_font = SelectObject(dc, es->font);
2789 GetTextMetricsW(dc, &tm);
2790 /* The default margins are only non zero for TrueType or Vector fonts */
2791 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
2792 int min_size;
2793 RECT rc;
2794 /* This must be calculated more exactly! But how? */
2795 default_left_margin = tm.tmAveCharWidth / 2;
2796 default_right_margin = tm.tmAveCharWidth / 2;
2797 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
2798 GetClientRect(es->hwndSelf, &rc);
2799 if(rc.right - rc.left < min_size) {
2800 default_left_margin = es->left_margin;
2801 default_right_margin = es->right_margin;
2802 }
2803 }
2804 SelectObject(dc, old_font);
2805 ReleaseDC(es->hwndSelf, dc);
2806 }
2807
2808 if (action & EC_LEFTMARGIN) {
2809 es->format_rect.left -= es->left_margin;
2810 if (left != EC_USEFONTINFO)
2811 es->left_margin = left;
2812 else
2813 es->left_margin = default_left_margin;
2814 es->format_rect.left += es->left_margin;
2815 }
2816
2817 if (action & EC_RIGHTMARGIN) {
2818 es->format_rect.right += es->right_margin;
2819 if (right != EC_USEFONTINFO)
2820 es->right_margin = right;
2821 else
2822 es->right_margin = default_right_margin;
2823 es->format_rect.right -= es->right_margin;
2824 }
2825
2826 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
2827 EDIT_AdjustFormatRect(es);
2828 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
2829 }
2830
2831 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
2832 }
2833
2834
2835 /*********************************************************************
2836 *
2837 * EM_SETPASSWORDCHAR
2838 *
2839 */
2840 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
2841 {
2842 LONG style;
2843
2844 if (es->style & ES_MULTILINE)
2845 return;
2846
2847 if (es->password_char == c)
2848 return;
2849
2850 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
2851 es->password_char = c;
2852 if (c) {
2853 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
2854 es->style |= ES_PASSWORD;
2855 } else {
2856 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
2857 es->style &= ~ES_PASSWORD;
2858 }
2859 EDIT_InvalidateUniscribeData(es);
2860 EDIT_UpdateText(es, NULL, TRUE);
2861 }
2862
2863
2864 /*********************************************************************
2865 *
2866 * EM_SETTABSTOPS
2867 *
2868 */
2869 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
2870 {
2871 if (!(es->style & ES_MULTILINE))
2872 return FALSE;
2873 HeapFree(GetProcessHeap(), 0, es->tabs);
2874 es->tabs_count = count;
2875 if (!count)
2876 es->tabs = NULL;
2877 else {
2878 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
2879 memcpy(es->tabs, tabs, count * sizeof(INT));
2880 }
2881 EDIT_InvalidateUniscribeData(es);
2882 return TRUE;
2883 }
2884
2885
2886 /*********************************************************************
2887 *
2888 * EM_SETWORDBREAKPROC
2889 *
2890 */
2891 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
2892 {
2893 if (es->word_break_proc == wbp)
2894 return;
2895
2896 es->word_break_proc = wbp;
2897
2898 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
2899 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2900 EDIT_UpdateText(es, NULL, TRUE);
2901 }
2902 }
2903
2904
2905 /*********************************************************************
2906 *
2907 * EM_UNDO / WM_UNDO
2908 *
2909 */
2910 static BOOL EDIT_EM_Undo(EDITSTATE *es)
2911 {
2912 INT ulength;
2913 LPWSTR utext;
2914
2915 /* As per MSDN spec, for a single-line edit control,
2916 the return value is always TRUE */
2917 if( es->style & ES_READONLY )
2918 return !(es->style & ES_MULTILINE);
2919
2920 ulength = strlenW(es->undo_text);
2921
2922 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
2923
2924 strcpyW(utext, es->undo_text);
2925
2926 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
2927 es->undo_insert_count, debugstr_w(utext));
2928
2929 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2930 EDIT_EM_EmptyUndoBuffer(es);
2931 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
2932 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2933 /* send the notification after the selection start and end are set */
2934 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2935 EDIT_EM_ScrollCaret(es);
2936 HeapFree(GetProcessHeap(), 0, utext);
2937
2938 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
2939 es->undo_insert_count, debugstr_w(es->undo_text));
2940 return TRUE;
2941 }
2942
2943
2944 /* Helper function for WM_CHAR
2945 *
2946 * According to an MSDN blog article titled "Just because you're a control
2947 * doesn't mean that you're necessarily inside a dialog box," multiline edit
2948 * controls without ES_WANTRETURN would attempt to detect whether it is inside
2949 * a dialog box or not.
2950 */
2951 static inline BOOL EDIT_IsInsideDialog(EDITSTATE *es)
2952 {
2953 return (es->flags & EF_DIALOGMODE);
2954 }
2955
2956
2957 /*********************************************************************
2958 *
2959 * WM_PASTE
2960 *
2961 */
2962 static void EDIT_WM_Paste(EDITSTATE *es)
2963 {
2964 HGLOBAL hsrc;
2965 LPWSTR src;
2966
2967 /* Protect read-only edit control from modification */
2968 if(es->style & ES_READONLY)
2969 return;
2970
2971 OpenClipboard(es->hwndSelf);
2972 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
2973 src = GlobalLock(hsrc);
2974 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
2975 GlobalUnlock(hsrc);
2976 }
2977 else if (es->style & ES_PASSWORD) {
2978 /* clear selected text in password edit box even with empty clipboard */
2979 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
2980 }
2981 CloseClipboard();
2982 }
2983
2984
2985 /*********************************************************************
2986 *
2987 * WM_COPY
2988 *
2989 */
2990 static void EDIT_WM_Copy(EDITSTATE *es)
2991 {
2992 INT s = min(es->selection_start, es->selection_end);
2993 INT e = max(es->selection_start, es->selection_end);
2994 HGLOBAL hdst;
2995 LPWSTR dst;
2996 DWORD len;
2997
2998 if (e == s) return;
2999
3000 len = e - s;
3001 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
3002 dst = GlobalLock(hdst);
3003 memcpy(dst, es->text + s, len * sizeof(WCHAR));
3004 dst[len] = 0; /* ensure 0 termination */
3005 TRACE("%s\n", debugstr_w(dst));
3006 GlobalUnlock(hdst);
3007 OpenClipboard(es->hwndSelf);
3008 EmptyClipboard();
3009 SetClipboardData(CF_UNICODETEXT, hdst);
3010 CloseClipboard();
3011 }
3012
3013
3014 /*********************************************************************
3015 *
3016 * WM_CLEAR
3017 *
3018 */
3019 static inline void EDIT_WM_Clear(EDITSTATE *es)
3020 {
3021 /* Protect read-only edit control from modification */
3022 if(es->style & ES_READONLY)
3023 return;
3024
3025 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
3026 }
3027
3028
3029 /*********************************************************************
3030 *
3031 * WM_CUT
3032 *
3033 */
3034 static inline void EDIT_WM_Cut(EDITSTATE *es)
3035 {
3036 EDIT_WM_Copy(es);
3037 EDIT_WM_Clear(es);
3038 }
3039
3040
3041 /*********************************************************************
3042 *
3043 * WM_CHAR
3044 *
3045 */
3046 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3047 {
3048 BOOL control;
3049
3050 control = GetKeyState(VK_CONTROL) & 0x8000;
3051
3052 switch (c) {
3053 case '\r':
3054 /* If it's not a multiline edit box, it would be ignored below.
3055 * For multiline edit without ES_WANTRETURN, we have to make a
3056 * special case.
3057 */
3058 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3059 if (EDIT_IsInsideDialog(es))
3060 break;
3061 case '\n':
3062 if (es->style & ES_MULTILINE) {
3063 if (es->style & ES_READONLY) {
3064 EDIT_MoveHome(es, FALSE, FALSE);
3065 EDIT_MoveDown_ML(es, FALSE);
3066 } else {
3067 static const WCHAR cr_lfW[] = {'\r','\n',0};
3068 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3069 }
3070 }
3071 break;
3072 case '\t':
3073 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3074 {
3075 static const WCHAR tabW[] = {'\t',0};
3076 if (EDIT_IsInsideDialog(es))
3077 break;
3078 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3079 }
3080 break;
3081 case VK_BACK:
3082 if (!(es->style & ES_READONLY) && !control) {
3083 if (es->selection_start != es->selection_end)
3084 EDIT_WM_Clear(es);
3085 else {
3086 /* delete character left of caret */
3087 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3088 EDIT_MoveBackward(es, TRUE);
3089 EDIT_WM_Clear(es);
3090 }
3091 }
3092 break;
3093 case 0x03: /* ^C */
3094 if (!(es->style & ES_PASSWORD))
3095 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3096 break;
3097 case 0x16: /* ^V */
3098 if (!(es->style & ES_READONLY))
3099 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3100 break;
3101 case 0x18: /* ^X */
3102 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
3103 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3104 break;
3105 case 0x1A: /* ^Z */
3106 if (!(es->style & ES_READONLY))
3107 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3108 break;
3109
3110 default:
3111 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3112 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3113 break;
3114
3115 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3116 WCHAR str[2];
3117 str[0] = c;
3118 str[1] = '\0';
3119 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3120 }
3121 break;
3122 }
3123 return 1;
3124 }
3125
3126
3127 /*********************************************************************
3128 *
3129 * WM_COMMAND
3130 *
3131 */
3132 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3133 {
3134 if (code || control)
3135 return;
3136
3137 switch (id) {
3138 case EM_UNDO:
3139 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3140 break;
3141 case WM_CUT:
3142 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3143 break;
3144 case WM_COPY:
3145 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3146 break;
3147 case WM_PASTE:
3148 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3149 break;
3150 case WM_CLEAR:
3151 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
3152 break;
3153 case EM_SETSEL:
3154 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3155 EDIT_EM_ScrollCaret(es);
3156 break;
3157 default:
3158 ERR("unknown menu item, please report\n");
3159 break;
3160 }
3161 }
3162
3163
3164 /*********************************************************************
3165 *
3166 * WM_CONTEXTMENU
3167 *
3168 * Note: the resource files resource/sysres_??.rc cannot define a
3169 * single popup menu. Hence we use a (dummy) menubar
3170 * containing the single popup menu as its first item.
3171 *
3172 * FIXME: the message identifiers have been chosen arbitrarily,
3173 * hence we use MF_BYPOSITION.
3174 * We might as well use the "real" values (anybody knows ?)
3175 * The menu definition is in resources/sysres_??.rc.
3176 * Once these are OK, we better use MF_BYCOMMAND here
3177 * (as we do in EDIT_WM_Command()).
3178 *
3179 */
3180 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3181 {
3182 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3183 HMENU popup = GetSubMenu(menu, 0);
3184 UINT start = es->selection_start;
3185 UINT end = es->selection_end;
3186
3187 ORDER_UINT(start, end);
3188
3189 /* undo */
3190 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3191 /* cut */
3192 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3193 /* copy */
3194 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3195 /* paste */
3196 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3197 /* delete */
3198 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3199 /* select all */
3200 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
3201
3202 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
3203 {
3204 RECT rc;
3205 /* Windows places the menu at the edit's center in this case */
3206 WIN_GetRectangles( es->hwndSelf, COORDS_SCREEN, NULL, &rc );
3207 x = rc.left + (rc.right - rc.left) / 2;
3208 y = rc.top + (rc.bottom - rc.top) / 2;
3209 }
3210
3211 if (!(es->flags & EF_FOCUSED))
3212 SetFocus(es->hwndSelf);
3213
3214 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3215 DestroyMenu(menu);
3216 }
3217
3218
3219 /*********************************************************************
3220 *
3221 * WM_GETTEXT
3222 *
3223 */
3224 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
3225 {
3226 if(!count) return 0;
3227
3228 if(unicode)
3229 {
3230 lstrcpynW(dst, es->text, count);
3231 return strlenW(dst);
3232 }
3233 else
3234 {
3235 LPSTR textA = (LPSTR)dst;
3236 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3237 textA[count - 1] = 0; /* ensure 0 termination */
3238 return strlen(textA);
3239 }
3240 }
3241
3242 /*********************************************************************
3243 *
3244 * EDIT_CheckCombo
3245 *
3246 */
3247 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3248 {
3249 HWND hLBox = es->hwndListBox;
3250 HWND hCombo;
3251 BOOL bDropped;
3252 int nEUI;
3253
3254 if (!hLBox)
3255 return FALSE;
3256
3257 hCombo = GetParent(es->hwndSelf);
3258 bDropped = TRUE;
3259 nEUI = 0;
3260
3261 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3262
3263 if (key == VK_UP || key == VK_DOWN)
3264 {
3265 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3266 nEUI = 1;
3267
3268 if (msg == WM_KEYDOWN || nEUI)
3269 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3270 }
3271
3272 switch (msg)
3273 {
3274 case WM_KEYDOWN:
3275 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3276 {
3277 /* make sure ComboLBox pops up */
3278 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
3279 key = VK_F4;
3280 nEUI = 2;
3281 }
3282
3283 SendMessageW(hLBox, WM_KEYDOWN, key, 0);
3284 break;
3285
3286 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3287 if (nEUI)
3288 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
3289 else
3290 SendMessageW(hLBox, WM_KEYDOWN, VK_F4, 0);
3291 break;
3292 }
3293
3294 if(nEUI == 2)
3295 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
3296
3297 return TRUE;
3298 }
3299
3300
3301 /*********************************************************************
3302 *
3303 * WM_KEYDOWN
3304 *
3305 * Handling of special keys that don't produce a WM_CHAR
3306 * (i.e. non-printable keys) & Backspace & Delete
3307 *
3308 */
3309 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
3310 {
3311 BOOL shift;
3312 BOOL control;
3313
3314 if (GetKeyState(VK_MENU) & 0x8000)
3315 return 0;
3316
3317 shift = GetKeyState(VK_SHIFT) & 0x8000;
3318 control = GetKeyState(VK_CONTROL) & 0x8000;
3319
3320 switch (key) {
3321 case VK_F4:
3322 case VK_UP:
3323 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
3324 break;
3325
3326 /* fall through */
3327 case VK_LEFT:
3328 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3329 EDIT_MoveUp_ML(es, shift);
3330 else
3331 if (control)
3332 EDIT_MoveWordBackward(es, shift);
3333 else
3334 EDIT_MoveBackward(es, shift);
3335 break;
3336 case VK_DOWN:
3337 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
3338 break;
3339 /* fall through */
3340 case VK_RIGHT:
3341 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3342 EDIT_MoveDown_ML(es, shift);
3343 else if (control)
3344 EDIT_MoveWordForward(es, shift);
3345 else
3346 EDIT_MoveForward(es, shift);
3347 break;
3348 case VK_HOME:
3349 EDIT_MoveHome(es, shift, control);
3350 break;
3351 case VK_END:
3352 EDIT_MoveEnd(es, shift, control);
3353 break;
3354 case VK_PRIOR:
3355 if (es->style & ES_MULTILINE)
3356 EDIT_MovePageUp_ML(es, shift);
3357 else
3358 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3359 break;
3360 case VK_NEXT:
3361 if (es->style & ES_MULTILINE)
3362 EDIT_MovePageDown_ML(es, shift);
3363 else
3364 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3365 break;
3366 case VK_DELETE:
3367 if (!(es->style & ES_READONLY) && !(shift && control)) {
3368 if (es->selection_start != es->selection_end) {
3369 if (shift)
3370 EDIT_WM_Cut(es);
3371 else
3372 EDIT_WM_Clear(es);
3373 } else {
3374 if (shift) {
3375 /* delete character left of caret */
3376 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3377 EDIT_MoveBackward(es, TRUE);
3378 EDIT_WM_Clear(es);
3379 } else if (control) {
3380 /* delete to end of line */
3381 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3382 EDIT_MoveEnd(es, TRUE, FALSE);
3383 EDIT_WM_Clear(es);
3384 } else {
3385 /* delete character right of caret */
3386 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3387 EDIT_MoveForward(es, TRUE);
3388 EDIT_WM_Clear(es);
3389 }
3390 }
3391 }
3392 break;
3393 case VK_INSERT:
3394 if (shift) {
3395 if (!(es->style & ES_READONLY))
3396 EDIT_WM_Paste(es);
3397 } else if (control)
3398 EDIT_WM_Copy(es);
3399 break;
3400 case VK_RETURN:
3401 /* If the edit doesn't want the return send a message to the default object */
3402 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
3403 {
3404 DWORD dw;
3405
3406 if (!EDIT_IsInsideDialog(es)) break;
3407 if (control) break;
3408 dw = SendMessageW(es->hwndParent, DM_GETDEFID, 0, 0);
3409 if (HIWORD(dw) == DC_HASDEFID)
3410 {
3411 HWND hwDefCtrl = GetDlgItem(es->hwndParent, LOWORD(dw));
3412 if (hwDefCtrl)
3413 {
3414 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, TRUE);
3415 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
3416 }
3417 }
3418 }
3419 break;
3420 case VK_ESCAPE:
3421 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3422 PostMessageW(es->hwndParent, WM_CLOSE, 0, 0);
3423 break;
3424 case VK_TAB:
3425 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3426 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
3427 break;
3428 }
3429 return TRUE;
3430 }
3431
3432
3433 /*********************************************************************
3434 *
3435 * WM_KILLFOCUS
3436 *
3437 */
3438 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
3439 {
3440 es->flags &= ~EF_FOCUSED;
3441 DestroyCaret();
3442 if(!(es->style & ES_NOHIDESEL))
3443 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3444 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
3445 return 0;
3446 }
3447
3448
3449 /*********************************************************************
3450 *
3451 * WM_LBUTTONDBLCLK
3452 *
3453 * The caret position has been set on the WM_LBUTTONDOWN message
3454 *
3455 */
3456 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
3457 {
3458 INT s;
3459 INT e = es->selection_end;
3460 INT l;
3461 INT li;
3462 INT ll;
3463
3464 es->bCaptureState = TRUE;
3465 SetCapture(es->hwndSelf);
3466
3467 l = EDIT_EM_LineFromChar(es, e);
3468 li = EDIT_EM_LineIndex(es, l);
3469 ll = EDIT_EM_LineLength(es, e);
3470 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
3471 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
3472 EDIT_EM_SetSel(es, s, e, FALSE);
3473 EDIT_EM_ScrollCaret(es);
3474 es->region_posx = es->region_posy = 0;
3475 SetTimer(es->hwndSelf, 0, 100, NULL);
3476 return 0;
3477 }
3478
3479
3480 /*********************************************************************
3481 *
3482 * WM_LBUTTONDOWN
3483 *
3484 */
3485 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
3486 {
3487 INT e;
3488 BOOL after_wrap;
3489
3490 es->bCaptureState = TRUE;
3491 SetCapture(es->hwndSelf);
3492 EDIT_ConfinePoint(es, &x, &y);
3493 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3494 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3495 EDIT_EM_ScrollCaret(es);
3496 es->region_posx = es->region_posy = 0;
3497 SetTimer(es->hwndSelf, 0, 100, NULL);
3498
3499 if (!(es->flags & EF_FOCUSED))
3500 SetFocus(es->hwndSelf);
3501
3502 return 0;
3503 }
3504
3505
3506 /*********************************************************************
3507 *
3508 * WM_LBUTTONUP
3509 *
3510 */
3511 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
3512 {
3513 if (es->bCaptureState) {
3514 KillTimer(es->hwndSelf, 0);
3515 if (GetCapture() == es->hwndSelf) ReleaseCapture();
3516 }
3517 es->bCaptureState = FALSE;
3518 return 0;
3519 }
3520
3521
3522 /*********************************************************************
3523 *
3524 * WM_MBUTTONDOWN
3525 *
3526 */
3527 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
3528 {
3529 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3530 return 0;
3531 }
3532
3533
3534 /*********************************************************************
3535 *
3536 * WM_MOUSEMOVE
3537 *
3538 */
3539 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
3540 {
3541 INT e;
3542 BOOL after_wrap;
3543 INT prex, prey;
3544
3545 /* If the mouse has been captured by process other than the edit control itself,
3546 * the windows edit controls will not select the strings with mouse move.
3547 */
3548 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
3549 return 0;
3550
3551 /*
3552 * FIXME: gotta do some scrolling if outside client
3553 * area. Maybe reset the timer ?
3554 */
3555 prex = x; prey = y;
3556 EDIT_ConfinePoint(es, &x, &y);
3557 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3558 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3559 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3560 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
3561 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
3562 return 0;
3563 }
3564
3565
3566 /*********************************************************************
3567 *
3568 * WM_PAINT
3569 *
3570 */
3571 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
3572 {
3573 PAINTSTRUCT ps;
3574 INT i;
3575 HDC dc;
3576 HFONT old_font = 0;
3577 RECT rc;
3578 RECT rcClient;
3579 RECT rcLine;
3580 RECT rcRgn;
3581 HBRUSH brush;
3582 HBRUSH old_brush;
3583 INT bw, bh;
3584 BOOL rev = es->bEnableState &&
3585 ((es->flags & EF_FOCUSED) ||
3586 (es->style & ES_NOHIDESEL));
3587 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
3588
3589 /* The dc we use for calcualting may not be the one we paint into.
3590 This is the safest action. */
3591 EDIT_InvalidateUniscribeData(es);
3592 GetClientRect(es->hwndSelf, &rcClient);
3593
3594 /* get the background brush */
3595 brush = EDIT_NotifyCtlColor(es, dc);
3596
3597 /* paint the border and the background */
3598 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
3599
3600 if(es->style & WS_BORDER) {
3601 bw = GetSystemMetrics(SM_CXBORDER);
3602 bh = GetSystemMetrics(SM_CYBORDER);
3603 rc = rcClient;
3604 if(es->style & ES_MULTILINE) {
3605 if(es->style & WS_HSCROLL) rc.bottom+=bh;
3606 if(es->style & WS_VSCROLL) rc.right+=bw;
3607 }
3608
3609 /* Draw the frame. Same code as in nonclient.c */
3610 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
3611 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
3612 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
3613 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
3614 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
3615 SelectObject(dc, old_brush);
3616
3617 /* Keep the border clean */
3618 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
3619 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
3620 }
3621
3622 GetClipBox(dc, &rc);
3623 FillRect(dc, &rc, brush);
3624
3625 IntersectClipRect(dc, es->format_rect.left,
3626 es->format_rect.top,
3627 es->format_rect.right,
3628 es->format_rect.bottom);
3629 if (es->style & ES_MULTILINE) {
3630 rc = rcClient;
3631 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3632 }
3633 if (es->font)
3634 old_font = SelectObject(dc, es->font);
3635
3636 if (!es->bEnableState)
3637 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
3638 GetClipBox(dc, &rcRgn);
3639 if (es->style & ES_MULTILINE) {
3640 INT vlc = get_vertical_line_count(es);
3641 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3642 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
3643 if (IntersectRect(&rc, &rcRgn, &rcLine))
3644 EDIT_PaintLine(es, dc, i, rev);
3645 }
3646 } else {
3647 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
3648 if (IntersectRect(&rc, &rcRgn, &rcLine))
3649 EDIT_PaintLine(es, dc, 0, rev);
3650 }
3651 if (es->font)
3652 SelectObject(dc, old_font);
3653
3654 if (!hdc)
3655 EndPaint(es->hwndSelf, &ps);
3656 }
3657
3658
3659 /*********************************************************************
3660 *
3661 * WM_SETFOCUS
3662 *
3663 */
3664 static void EDIT_WM_SetFocus(EDITSTATE *es)
3665 {
3666 es->flags |= EF_FOCUSED;
3667
3668 if (!(es->style & ES_NOHIDESEL))
3669 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3670
3671 /* single line edit updates itself */
3672 if (!(es->style & ES_MULTILINE))
3673 {
3674 HDC hdc = GetDC(es->hwndSelf);
3675 EDIT_WM_Paint(es, hdc);
3676 ReleaseDC(es->hwndSelf, hdc);
3677 }
3678
3679 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3680 EDIT_SetCaretPos(es, es->selection_end,
3681 es->flags & EF_AFTER_WRAP);
3682 ShowCaret(es->hwndSelf);
3683 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
3684 }
3685
3686
3687 /*********************************************************************
3688 *
3689 * WM_SETFONT
3690 *
3691 * With Win95 look the margins are set to default font value unless
3692 * the system font (font == 0) is being set, in which case they are left
3693 * unchanged.
3694 *
3695 */
3696 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
3697 {
3698 TEXTMETRICW tm;
3699 HDC dc;
3700 HFONT old_font = 0;
3701 RECT clientRect;
3702
3703 es->font = font;
3704 EDIT_InvalidateUniscribeData(es);
3705 dc = GetDC(es->hwndSelf);
3706 if (font)
3707 old_font = SelectObject(dc, font);
3708 GetTextMetricsW(dc, &tm);
3709 es->line_height = tm.tmHeight;
3710 es->char_width = tm.tmAveCharWidth;
3711 if (font)
3712 SelectObject(dc, old_font);
3713 ReleaseDC(es->hwndSelf, dc);
3714
3715 /* Reset the format rect and the margins */
3716 GetClientRect(es->hwndSelf, &clientRect);
3717 EDIT_SetRectNP(es, &clientRect);
3718 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3719 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
3720
3721 if (es->style & ES_MULTILINE)
3722 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3723 else
3724 EDIT_CalcLineWidth_SL(es);
3725
3726 if (redraw)
3727 EDIT_UpdateText(es, NULL, TRUE);
3728 if (es->flags & EF_FOCUSED) {
3729 DestroyCaret();
3730 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3731 EDIT_SetCaretPos(es, es->selection_end,
3732 es->flags & EF_AFTER_WRAP);
3733 ShowCaret(es->hwndSelf);
3734 }
3735 }
3736
3737
3738 /*********************************************************************
3739 *
3740 * WM_SETTEXT
3741 *
3742 * NOTES
3743 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3744 * The modified flag is reset. No notifications are sent.
3745 *
3746 * For single-line controls, reception of WM_SETTEXT triggers:
3747 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3748 *
3749 */
3750 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
3751 {
3752 LPWSTR textW = NULL;
3753 if (!unicode && text)
3754 {
3755 LPCSTR textA = (LPCSTR)text;
3756 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
3757 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
3758 if (textW)
3759 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
3760 text = textW;
3761 }
3762
3763 if (es->flags & EF_UPDATE)
3764 /* fixed this bug once; complain if we see it about to happen again. */
3765 ERR("SetSel may generate UPDATE message whose handler may reset "
3766 "selection.\n");
3767
3768 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3769 if (text)
3770 {
3771 TRACE("%s\n", debugstr_w(text));
3772 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
3773 if(!unicode)
3774 HeapFree(GetProcessHeap(), 0, textW);
3775 }
3776 else
3777 {
3778 TRACE("<NULL>\n");
3779 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
3780 }
3781 es->x_offset = 0;
3782 es->flags &= ~EF_MODIFIED;
3783 EDIT_EM_SetSel(es, 0, 0, FALSE);
3784
3785 /* Send the notification after the selection start and end have been set
3786 * edit control doesn't send notification on WM_SETTEXT
3787 * if it is multiline, or it is part of combobox
3788 */
3789 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
3790 {
3791 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
3792 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3793 }
3794 EDIT_EM_ScrollCaret(es);
3795 EDIT_UpdateScrollInfo(es);
3796 EDIT_InvalidateUniscribeData(es);
3797 }
3798
3799
3800 /*********************************************************************
3801 *
3802 * WM_SIZE
3803 *
3804 */
3805 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
3806 {
3807 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
3808 RECT rc;
3809 TRACE("width = %d, height = %d\n", width, height);
3810 SetRect(&rc, 0, 0, width, height);
3811 EDIT_SetRectNP(es, &rc);
3812 EDIT_UpdateText(es, NULL, TRUE);
3813 }
3814 }
3815
3816
3817 /*********************************************************************
3818 *
3819 * WM_STYLECHANGED
3820 *
3821 * This message is sent by SetWindowLong on having changed either the Style
3822 * or the extended style.
3823 *
3824 * We ensure that the window's version of the styles and the EDITSTATE's agree.
3825 *
3826 * See also EDIT_WM_NCCreate
3827 *
3828 * It appears that the Windows version of the edit control allows the style
3829 * (as retrieved by GetWindowLong) to be any value and maintains an internal
3830 * style variable which will generally be different. In this function we
3831 * update the internal style based on what changed in the externally visible
3832 * style.
3833 *
3834 * Much of this content as based upon the MSDN, especially:
3835 * Platform SDK Documentation -> User Interface Services ->
3836 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
3837 * Edit Control Styles
3838 */
3839 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
3840 {
3841 if (GWL_STYLE == which) {
3842 DWORD style_change_mask;
3843 DWORD new_style;
3844 /* Only a subset of changes can be applied after the control
3845 * has been created.
3846 */
3847 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
3848 ES_NUMBER;
3849 if (es->style & ES_MULTILINE)
3850 style_change_mask |= ES_WANTRETURN;
3851
3852 new_style = style->styleNew & style_change_mask;
3853
3854 /* Number overrides lowercase overrides uppercase (at least it
3855 * does in Win95). However I'll bet that ES_NUMBER would be
3856 * invalid under Win 3.1.
3857 */
3858 if (new_style & ES_NUMBER) {
3859 ; /* do not override the ES_NUMBER */
3860 } else if (new_style & ES_LOWERCASE) {
3861 new_style &= ~ES_UPPERCASE;
3862 }
3863
3864 es->style = (es->style & ~style_change_mask) | new_style;
3865 } else if (GWL_EXSTYLE == which) {
3866 ; /* FIXME - what is needed here */
3867 } else {
3868 WARN ("Invalid style change %ld\n",which);
3869 }
3870
3871 return 0;
3872 }
3873
3874 /*********************************************************************
3875 *
3876 * WM_SYSKEYDOWN
3877 *
3878 */
3879 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
3880 {
3881 if ((key == VK_BACK) && (key_data & 0x2000)) {
3882 if (EDIT_EM_CanUndo(es))
3883 EDIT_EM_Undo(es);
3884 return 0;
3885 } else if (key == VK_UP || key == VK_DOWN) {
3886 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
3887 return 0;
3888 }
3889 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, key, key_data);
3890 }
3891
3892
3893 /*********************************************************************
3894 *
3895 * WM_TIMER
3896 *
3897 */
3898 static void EDIT_WM_Timer(EDITSTATE *es)
3899 {
3900 if (es->region_posx < 0) {
3901 EDIT_MoveBackward(es, TRUE);
3902 } else if (es->region_posx > 0) {
3903 EDIT_MoveForward(es, TRUE);
3904 }
3905 /*
3906 * FIXME: gotta do some vertical scrolling here, like
3907 * EDIT_EM_LineScroll(hwnd, 0, 1);
3908 */
3909 }
3910
3911 /*********************************************************************
3912 *
3913 * WM_HSCROLL
3914 *
3915 */
3916 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3917 {
3918 INT dx;
3919 INT fw;
3920
3921 if (!(es->style & ES_MULTILINE))
3922 return 0;
3923
3924 if (!(es->style & ES_AUTOHSCROLL))
3925 return 0;
3926
3927 dx = 0;
3928 fw = es->format_rect.right - es->format_rect.left;
3929 switch (action) {
3930 case SB_LINELEFT:
3931 TRACE("SB_LINELEFT\n");
3932 if (es->x_offset)
3933 dx = -es->char_width;
3934 break;
3935 case SB_LINERIGHT:
3936 TRACE("SB_LINERIGHT\n");
3937 if (es->x_offset < es->text_width)
3938 dx = es->char_width;
3939 break;
3940 case SB_PAGELEFT:
3941 TRACE("SB_PAGELEFT\n");
3942 if (es->x_offset)
3943 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3944 break;
3945 case SB_PAGERIGHT:
3946 TRACE("SB_PAGERIGHT\n");
3947 if (es->x_offset < es->text_width)
3948 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3949 break;
3950 case SB_LEFT:
3951 TRACE("SB_LEFT\n");
3952 if (es->x_offset)
3953 dx = -es->x_offset;
3954 break;
3955 case SB_RIGHT:
3956 TRACE("SB_RIGHT\n");
3957 if (es->x_offset < es->text_width)
3958 dx = es->text_width - es->x_offset;
3959 break;
3960 case SB_THUMBTRACK:
3961 TRACE("SB_THUMBTRACK %d\n", pos);
3962 es->flags |= EF_HSCROLL_TRACK;
3963 if(es->style & WS_HSCROLL)
3964 dx = pos - es->x_offset;
3965 else
3966 {
3967 INT fw, new_x;
3968 /* Sanity check */
3969 if(pos < 0 || pos > 100) return 0;
3970 /* Assume default scroll range 0-100 */
3971 fw = es->format_rect.right - es->format_rect.left;
3972 new_x = pos * (es->text_width - fw) / 100;
3973 dx = es->text_width ? (new_x - es->x_offset) : 0;
3974 }
3975 break;
3976 case SB_THUMBPOSITION:
3977 TRACE("SB_THUMBPOSITION %d\n", pos);
3978 es->flags &= ~EF_HSCROLL_TRACK;
3979 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3980 dx = pos - es->x_offset;
3981 else
3982 {
3983 INT fw, new_x;
3984 /* Sanity check */
3985 if(pos < 0 || pos > 100) return 0;
3986 /* Assume default scroll range 0-100 */
3987 fw = es->format_rect.right - es->format_rect.left;
3988 new_x = pos * (es->text_width - fw) / 100;
3989 dx = es->text_width ? (new_x - es->x_offset) : 0;
3990 }
3991 if (!dx) {
3992 /* force scroll info update */
3993 EDIT_UpdateScrollInfo(es);
3994 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3995 }
3996 break;
3997 case SB_ENDSCROLL:
3998 TRACE("SB_ENDSCROLL\n");
3999 break;
4000 /*
4001 * FIXME : the next two are undocumented !
4002 * Are we doing the right thing ?
4003 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4004 * although it's also a regular control message.
4005 */
4006 case EM_GETTHUMB: /* this one is used by NT notepad */
4007 {
4008 LRESULT ret;
4009 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4010 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4011 else
4012 {
4013 /* Assume default scroll range 0-100 */
4014 INT fw = es->format_rect.right - es->format_rect.left;
4015 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4016 }
4017 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4018 return ret;
4019 }
4020 case EM_LINESCROLL:
4021 TRACE("EM_LINESCROLL16\n");
4022 dx = pos;
4023 break;
4024
4025 default:
4026 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4027 action, action);
4028 return 0;
4029 }
4030 if (dx)
4031 {
4032 INT fw = es->format_rect.right - es->format_rect.left;
4033 /* check if we are going to move too far */
4034 if(es->x_offset + dx + fw > es->text_width)
4035 dx = es->text_width - fw - es->x_offset;
4036 if(dx)
4037 EDIT_EM_LineScroll_internal(es, dx, 0);
4038 }
4039 return 0;
4040 }
4041
4042
4043 /*********************************************************************
4044 *
4045 * WM_VSCROLL
4046 *
4047 */
4048 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4049 {
4050 INT dy;
4051
4052 if (!(es->style & ES_MULTILINE))
4053 return 0;
4054
4055 if (!(es->style & ES_AUTOVSCROLL))
4056 return 0;
4057
4058 dy = 0;
4059 switch (action) {
4060 case SB_LINEUP:
4061 case SB_LINEDOWN:
4062 case SB_PAGEUP:
4063 case SB_PAGEDOWN:
4064 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4065 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4066 (action == SB_PAGEUP ? "SB_PAGEUP" :
4067 "SB_PAGEDOWN"))));
4068 EDIT_EM_Scroll(es, action);
4069 return 0;
4070 case SB_TOP:
4071 TRACE("SB_TOP\n");
4072 dy = -es->y_offset;
4073 break;
4074 case SB_BOTTOM:
4075 TRACE("SB_BOTTOM\n");
4076 dy = es->line_count - 1 - es->y_offset;
4077 break;
4078 case SB_THUMBTRACK:
4079 TRACE("SB_THUMBTRACK %d\n", pos);
4080 es->flags |= EF_VSCROLL_TRACK;
4081 if(es->style & WS_VSCROLL)
4082 dy = pos - es->y_offset;
4083 else
4084 {
4085 /* Assume default scroll range 0-100 */
4086 INT vlc, new_y;
4087 /* Sanity check */
4088 if(pos < 0 || pos > 100) return 0;
4089 vlc = get_vertical_line_count(es);
4090 new_y = pos * (es->line_count - vlc) / 100;
4091 dy = es->line_count ? (new_y - es->y_offset) : 0;
4092 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4093 es->line_count, es->y_offset, pos, dy);
4094 }
4095 break;
4096 case SB_THUMBPOSITION:
4097 TRACE("SB_THUMBPOSITION %d\n", pos);
4098 es->flags &= ~EF_VSCROLL_TRACK;
4099 if(es->style & WS_VSCROLL)
4100 dy = pos - es->y_offset;
4101 else
4102 {
4103 /* Assume default scroll range 0-100 */
4104 INT vlc, new_y;
4105 /* Sanity check */
4106 if(pos < 0 || pos > 100) return 0;
4107 vlc = get_vertical_line_count(es);
4108 new_y = pos * (es->line_count - vlc) / 100;
4109 dy = es->line_count ? (new_y - es->y_offset) : 0;
4110 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4111 es->line_count, es->y_offset, pos, dy);
4112 }
4113 if (!dy)
4114 {
4115 /* force scroll info update */
4116 EDIT_UpdateScrollInfo(es);
4117 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
4118 }
4119 break;
4120 case SB_ENDSCROLL:
4121 TRACE("SB_ENDSCROLL\n");
4122 break;
4123 /*
4124 * FIXME : the next two are undocumented !
4125 * Are we doing the right thing ?
4126 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4127 * although it's also a regular control message.
4128 */
4129 case EM_GETTHUMB: /* this one is used by NT notepad */
4130 {
4131 LRESULT ret;
4132 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4133 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4134 else
4135 {
4136 /* Assume default scroll range 0-100 */
4137 INT vlc = get_vertical_line_count(es);
4138 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4139 }
4140 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4141 return ret;
4142 }
4143 case EM_LINESCROLL:
4144 TRACE("EM_LINESCROLL %d\n", pos);
4145 dy = pos;
4146 break;
4147
4148 default:
4149 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4150 action, action);
4151 return 0;
4152 }
4153 if (dy)
4154 EDIT_EM_LineScroll(es, 0, dy);
4155 return 0;
4156 }
4157
4158 /*********************************************************************
4159 *
4160 * EM_GETTHUMB
4161 *
4162 * FIXME: is this right ? (or should it be only VSCROLL)
4163 * (and maybe only for edit controls that really have their
4164 * own scrollbars) (and maybe only for multiline controls ?)
4165 * All in all: very poorly documented
4166 *
4167 */
4168 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
4169 {
4170 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB, 0),
4171 EDIT_WM_HScroll(es, EM_GETTHUMB, 0));
4172 }
4173
4174
4175 /********************************************************************
4176 *
4177 * The Following code is to handle inline editing from IMEs
4178 */
4179
4180 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
4181 {
4182 LONG buflen;
4183 LPWSTR lpCompStr = NULL;
4184 LPSTR lpCompStrAttr = NULL;
4185 DWORD dwBufLenAttr;
4186
4187 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4188
4189 if (buflen < 0)
4190 {
4191 return;
4192 }
4193
4194 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
4195 if (!lpCompStr)
4196 {
4197 ERR("Unable to allocate IME CompositionString\n");
4198 return;
4199 }
4200
4201 if (buflen)
4202 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
4203 lpCompStr[buflen/sizeof(WCHAR)] = 0;
4204
4205 if (CompFlag & GCS_COMPATTR)
4206 {
4207 /*
4208 * We do not use the attributes yet. it would tell us what characters
4209 * are in transition and which are converted or decided upon
4210 */
4211 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
4212 if (dwBufLenAttr)
4213 {
4214 dwBufLenAttr ++;
4215 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
4216 if (!lpCompStrAttr)
4217 {
4218 ERR("Unable to allocate IME Attribute String\n");
4219 HeapFree(GetProcessHeap(),0,lpCompStr);
4220 return;
4221 }
4222 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
4223 dwBufLenAttr);
4224 lpCompStrAttr[dwBufLenAttr] = 0;
4225 }
4226 else
4227 lpCompStrAttr = NULL;
4228 }
4229
4230 /* check for change in composition start */
4231 if (es->selection_end < es->composition_start)
4232 es->composition_start = es->selection_end;
4233
4234 /* replace existing selection string */
4235 es->selection_start = es->composition_start;
4236
4237 if (es->composition_len > 0)
4238 es->selection_end = es->composition_start + es->composition_len;
4239 else
4240 es->selection_end = es->selection_start;
4241
4242 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
4243 es->composition_len = abs(es->composition_start - es->selection_end);
4244
4245 es->selection_start = es->composition_start;
4246 es->selection_end = es->selection_start + es->composition_len;
4247
4248 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
4249 HeapFree(GetProcessHeap(),0,lpCompStr);
4250 }
4251
4252 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
4253 {
4254 LONG buflen;
4255 LPWSTR lpResultStr;
4256
4257 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4258 if (buflen <= 0)
4259 {
4260 return;
4261 }
4262
4263 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
4264 if (!lpResultStr)
4265 {
4266 ERR("Unable to alloc buffer for IME string\n");
4267 return;
4268 }
4269
4270 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
4271 lpResultStr[buflen/sizeof(WCHAR)] = 0;
4272
4273 /* check for change in composition start */
4274 if (es->selection_end < es->composition_start)
4275 es->composition_start = es->selection_end;
4276
4277 es->selection_start = es->composition_start;
4278 es->selection_end = es->composition_start + es->composition_len;
4279 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
4280 es->composition_start = es->selection_end;
4281 es->composition_len = 0;
4282
4283 HeapFree(GetProcessHeap(),0,lpResultStr);
4284 }
4285
4286 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
4287 {
4288 HIMC hIMC;
4289 int cursor;
4290
4291 if (es->composition_len == 0 && es->selection_start != es->selection_end)
4292 {
4293 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4294 es->composition_start = es->selection_end;
4295 }
4296
4297 hIMC = ImmGetContext(hwnd);
4298 if (!hIMC)
4299 return;
4300
4301 if (CompFlag & GCS_RESULTSTR)
4302 EDIT_GetResultStr(hIMC, es);
4303 if (CompFlag & GCS_COMPSTR)
4304 EDIT_GetCompositionStr(hIMC, CompFlag, es);
4305 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
4306 ImmReleaseContext(hwnd, hIMC);
4307 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
4308 }
4309
4310
4311 /*********************************************************************
4312 *
4313 * WM_NCCREATE
4314 *
4315 * See also EDIT_WM_StyleChanged
4316 */
4317 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4318 {
4319 EDITSTATE *es;
4320 UINT alloc_size;
4321
4322 TRACE("Creating %s edit control, style = %08x\n",
4323 unicode ? "Unicode" : "ANSI", lpcs->style);
4324
4325 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4326 return FALSE;
4327 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4328
4329 /*
4330 * Note: since the EDITSTATE has not been fully initialized yet,
4331 * we can't use any API calls that may send
4332 * WM_XXX messages before WM_NCCREATE is completed.
4333 */
4334
4335 es->is_unicode = unicode;
4336 es->style = lpcs->style;
4337
4338 es->bEnableState = !(es->style & WS_DISABLED);
4339
4340 es->hwndSelf = hwnd;
4341 /* Save parent, which will be notified by EN_* messages */
4342 es->hwndParent = lpcs->hwndParent;
4343
4344 if (es->style & ES_COMBO)
4345 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4346
4347 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4348 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4349
4350 /* Number overrides lowercase overrides uppercase (at least it
4351 * does in Win95). However I'll bet that ES_NUMBER would be
4352 * invalid under Win 3.1.
4353 */
4354 if (es->style & ES_NUMBER) {
4355 ; /* do not override the ES_NUMBER */
4356 } else if (es->style & ES_LOWERCASE) {
4357 es->style &= ~ES_UPPERCASE;
4358 }
4359 if (es->style & ES_MULTILINE) {
4360 es->buffer_limit = BUFLIMIT_INITIAL;
4361 if (es->style & WS_VSCROLL)
4362 es->style |= ES_AUTOVSCROLL;
4363 if (es->style & WS_HSCROLL)
4364 es->style |= ES_AUTOHSCROLL;
4365 es->style &= ~ES_PASSWORD;
4366 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4367 /* Confirmed - RIGHT overrides CENTER */
4368 if (es->style & ES_RIGHT)
4369 es->style &= ~ES_CENTER;
4370 es->style &= ~WS_HSCROLL;
4371 es->style &= ~ES_AUTOHSCROLL;
4372 }
4373 } else {
4374 es->buffer_limit = BUFLIMIT_INITIAL;
4375 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4376 es->style &= ~ES_CENTER;
4377 es->style &= ~WS_HSCROLL;
4378 es->style &= ~WS_VSCROLL;
4379 if (es->style & ES_PASSWORD)
4380 es->password_char = '*';
4381 }
4382
4383 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4384 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4385 goto cleanup;
4386 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4387
4388 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4389 goto cleanup;
4390 es->undo_buffer_size = es->buffer_size;
4391
4392 if (es->style & ES_MULTILINE)
4393 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4394 goto cleanup;
4395 es->line_count = 1;
4396
4397 /*
4398 * In Win95 look and feel, the WS_BORDER style is replaced by the
4399 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4400 * control a nonclient area so we don't need to draw the border.
4401 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4402 * a nonclient area and we should handle painting the border ourselves.
4403 *
4404 * When making modifications please ensure that the code still works
4405 * for edit controls created directly with style 0x50800000, exStyle 0
4406 * (which should have a single pixel border)
4407 */
4408 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4409 es->style &= ~WS_BORDER;
4410 else if (es->style & WS_BORDER)
4411 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4412
4413 return TRUE;
4414
4415 cleanup:
4416 SetWindowLongPtrW(es->hwndSelf, 0, 0);
4417 EDIT_InvalidateUniscribeData(es);
4418 HeapFree(GetProcessHeap(), 0, es->first_line_def);
4419 HeapFree(GetProcessHeap(), 0, es->undo_text);
4420 if (es->hloc32W) LocalFree(es->hloc32W);
4421 HeapFree(GetProcessHeap(), 0, es->logAttr);
4422 HeapFree(GetProcessHeap(), 0, es);
4423 return FALSE;
4424 }
4425
4426
4427 /*********************************************************************
4428 *
4429 * WM_CREATE
4430 *
4431 */
4432 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4433 {
4434 RECT clientRect;
4435
4436 TRACE("%s\n", debugstr_w(name));
4437 /*
4438 * To initialize some final structure members, we call some helper
4439 * functions. However, since the EDITSTATE is not consistent (i.e.
4440 * not fully initialized), we should be very careful which
4441 * functions can be called, and in what order.
4442 */
4443 EDIT_WM_SetFont(es, 0, FALSE);
4444 EDIT_EM_EmptyUndoBuffer(es);
4445
4446 /* We need to calculate the format rect
4447 (applications may send EM_SETMARGINS before the control gets visible) */
4448 GetClientRect(es->hwndSelf, &clientRect);
4449 EDIT_SetRectNP(es, &clientRect);
4450
4451 if (name && *name) {
4452 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4453 /* if we insert text to the editline, the text scrolls out
4454 * of the window, as the caret is placed after the insert
4455 * pos normally; thus we reset es->selection... to 0 and
4456 * update caret
4457 */
4458 es->selection_start = es->selection_end = 0;
4459 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4460 * Messages are only to be sent when the USER does something to
4461 * change the contents. So I am removing this EN_CHANGE
4462 *
4463 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4464 */
4465 EDIT_EM_ScrollCaret(es);
4466 }
4467 /* force scroll info update */
4468 EDIT_UpdateScrollInfo(es);
4469 /* The rule seems to return 1 here for success */
4470 /* Power Builder masked edit controls will crash */
4471 /* if not. */
4472 /* FIXME: is that in all cases so ? */
4473 return 1;
4474 }
4475
4476
4477 /*********************************************************************
4478 *
4479 * WM_NCDESTROY
4480 *
4481 */
4482 static LRESULT EDIT_WM_NCDestroy(EDITSTATE *es)
4483 {
4484 LINEDEF *pc, *pp;
4485
4486 if (es->hloc32W) {
4487 LocalFree(es->hloc32W);
4488 }
4489 if (es->hloc32A) {
4490 LocalFree(es->hloc32A);
4491 }
4492 pc = es->first_line_def;
4493 while (pc)
4494 {
4495 pp = pc->next;
4496 HeapFree(GetProcessHeap(), 0, pc);
4497 pc = pp;
4498 }
4499
4500 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4501 HeapFree(GetProcessHeap(), 0, es->undo_text);
4502 HeapFree(GetProcessHeap(), 0, es);
4503
4504 return 0;
4505 }
4506
4507
4508 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
4509 {
4510 if(unicode)
4511 return DefWindowProcW(hwnd, msg, wParam, lParam);
4512 else
4513 return DefWindowProcA(hwnd, msg, wParam, lParam);
4514 }
4515
4516 /*********************************************************************
4517 *
4518 * EditWndProc_common
4519 *
4520 * The messages are in the order of the actual integer values
4521 * (which can be found in include/windows.h)
4522 */
4523 LRESULT EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode )
4524 {
4525 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
4526 LRESULT result = 0;
4527
4528 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
4529
4530 if (!es && msg != WM_NCCREATE)
4531 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4532
4533 if (es && (msg != WM_NCDESTROY)) EDIT_LockBuffer(es);
4534
4535 switch (msg) {
4536 case EM_GETSEL:
4537 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
4538 break;
4539
4540 case EM_SETSEL:
4541 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
4542 EDIT_EM_ScrollCaret(es);
4543 result = 1;
4544 break;
4545
4546 case EM_GETRECT:
4547 if (lParam)
4548 CopyRect((LPRECT)lParam, &es->format_rect);
4549 break;
4550
4551 case EM_SETRECT:
4552 if ((es->style & ES_MULTILINE) && lParam) {
4553 EDIT_SetRectNP(es, (LPRECT)lParam);
4554 EDIT_UpdateText(es, NULL, TRUE);
4555 }
4556 break;
4557
4558 case EM_SETRECTNP:
4559 if ((es->style & ES_MULTILINE) && lParam)
4560 EDIT_SetRectNP(es, (LPRECT)lParam);
4561 break;
4562
4563 case EM_SCROLL:
4564 result = EDIT_EM_Scroll(es, (INT)wParam);
4565 break;
4566
4567 case EM_LINESCROLL:
4568 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
4569 break;
4570
4571 case EM_SCROLLCARET:
4572 EDIT_EM_ScrollCaret(es);
4573 result = 1;
4574 break;
4575
4576 case EM_GETMODIFY:
4577 result = ((es->flags & EF_MODIFIED) != 0);
4578 break;
4579
4580 case EM_SETMODIFY:
4581 if (wParam)
4582 es->flags |= EF_MODIFIED;
4583 else
4584 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
4585 break;
4586
4587 case EM_GETLINECOUNT:
4588 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
4589 break;
4590
4591 case EM_LINEINDEX:
4592 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
4593 break;
4594
4595 case EM_SETHANDLE:
4596 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
4597 break;
4598
4599 case EM_GETHANDLE:
4600 result = (LRESULT)EDIT_EM_GetHandle(es);
4601 break;
4602
4603 case EM_GETTHUMB:
4604 result = EDIT_EM_GetThumb(es);
4605 break;
4606
4607 /* these messages missing from specs */
4608 case 0x00bf:
4609 case 0x00c0:
4610 case 0x00c3:
4611 case 0x00ca:
4612 FIXME("undocumented message 0x%x, please report\n", msg);
4613 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4614 break;
4615
4616 case EM_LINELENGTH:
4617 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
4618 break;
4619
4620 case EM_REPLACESEL:
4621 {
4622 LPWSTR textW;
4623
4624 if(unicode)
4625 textW = (LPWSTR)lParam;
4626 else
4627 {
4628 LPSTR textA = (LPSTR)lParam;
4629 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4630 if (!(textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR)))) break;
4631 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4632 }
4633
4634 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
4635 result = 1;
4636
4637 if(!unicode)
4638 HeapFree(GetProcessHeap(), 0, textW);
4639 break;
4640 }
4641
4642 case EM_GETLINE:
4643 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
4644 break;
4645
4646 case EM_SETLIMITTEXT:
4647 EDIT_EM_SetLimitText(es, wParam);
4648 break;
4649
4650 case EM_CANUNDO:
4651 result = (LRESULT)EDIT_EM_CanUndo(es);
4652 break;
4653
4654 case EM_UNDO:
4655 case WM_UNDO:
4656 result = (LRESULT)EDIT_EM_Undo(es);
4657 break;
4658
4659 case EM_FMTLINES:
4660 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
4661 break;
4662
4663 case EM_LINEFROMCHAR:
4664 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
4665 break;
4666
4667 case EM_SETTABSTOPS:
4668 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
4669 break;
4670
4671 case EM_SETPASSWORDCHAR:
4672 {
4673 WCHAR charW = 0;
4674
4675 if(unicode)
4676 charW = (WCHAR)wParam;
4677 else
4678 {
4679 CHAR charA = wParam;
4680 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4681 }
4682
4683 EDIT_EM_SetPasswordChar(es, charW);
4684 break;
4685 }
4686
4687 case EM_EMPTYUNDOBUFFER:
4688 EDIT_EM_EmptyUndoBuffer(es);
4689 break;
4690
4691 case EM_GETFIRSTVISIBLELINE:
4692 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
4693 break;
4694
4695 case EM_SETREADONLY:
4696 {
4697 DWORD old_style = es->style;
4698
4699 if (wParam) {
4700 SetWindowLongW( hwnd, GWL_STYLE,
4701 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
4702 es->style |= ES_READONLY;
4703 } else {
4704 SetWindowLongW( hwnd, GWL_STYLE,
4705 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
4706 es->style &= ~ES_READONLY;
4707 }
4708
4709 if (old_style ^ es->style)
4710 InvalidateRect(es->hwndSelf, NULL, TRUE);
4711
4712 result = 1;
4713 break;
4714 }
4715
4716 case EM_SETWORDBREAKPROC:
4717 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
4718 break;
4719
4720 case EM_GETWORDBREAKPROC:
4721 result = (LRESULT)es->word_break_proc;
4722 break;
4723
4724 case EM_GETPASSWORDCHAR:
4725 {
4726 if(unicode)
4727 result = es->password_char;
4728 else
4729 {
4730 WCHAR charW = es->password_char;
4731 CHAR charA = 0;
4732 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
4733 result = charA;
4734 }
4735 break;
4736 }
4737
4738 case EM_SETMARGINS:
4739 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
4740 break;
4741
4742 case EM_GETMARGINS:
4743 result = MAKELONG(es->left_margin, es->right_margin);
4744 break;
4745
4746 case EM_GETLIMITTEXT:
4747 result = es->buffer_limit;
4748 break;
4749
4750 case EM_POSFROMCHAR:
4751 if ((INT)wParam >= get_text_length(es)) result = -1;
4752 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
4753 break;
4754
4755 case EM_CHARFROMPOS:
4756 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4757 break;
4758
4759 /* End of the EM_ messages which were in numerical order; what order
4760 * are these in? vaguely alphabetical?
4761 */
4762
4763 case WM_NCCREATE:
4764 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
4765 break;
4766
4767 case WM_NCDESTROY:
4768 result = EDIT_WM_NCDestroy(es);
4769 es = NULL;
4770 break;
4771
4772 case WM_GETDLGCODE:
4773 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
4774
4775 if (es->style & ES_MULTILINE)
4776 result |= DLGC_WANTALLKEYS;
4777
4778 if (lParam)
4779 {
4780 es->flags|=EF_DIALOGMODE;
4781
4782 if (((LPMSG)lParam)->message == WM_KEYDOWN)
4783 {
4784 int vk = (int)((LPMSG)lParam)->wParam;
4785
4786 if (es->hwndListBox)
4787 {
4788 if (vk == VK_RETURN || vk == VK_ESCAPE)
4789 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4790 result |= DLGC_WANTMESSAGE;
4791 }
4792 }
4793 }
4794 break;
4795
4796 case WM_IME_CHAR:
4797 if (!unicode)
4798 {
4799 WCHAR charW;
4800 CHAR strng[2];
4801
4802 strng[0] = wParam >> 8;
4803 strng[1] = wParam & 0xff;
4804 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
4805 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
4806 result = EDIT_WM_Char(es, charW);
4807 break;
4808 }
4809 /* fall through */
4810 case WM_CHAR:
4811 {
4812 WCHAR charW;
4813
4814 if(unicode)
4815 charW = wParam;
4816 else
4817 {
4818 CHAR charA = wParam;
4819 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4820 }
4821
4822 if (es->hwndListBox)
4823 {
4824 if (charW == VK_RETURN || charW == VK_ESCAPE)
4825 {
4826 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4827 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
4828 break;
4829 }
4830 }
4831 result = EDIT_WM_Char(es, charW);
4832 break;
4833 }
4834
4835 case WM_UNICHAR:
4836 if (unicode)
4837 {
4838 if (wParam == UNICODE_NOCHAR) return TRUE;
4839 if (wParam <= 0x000fffff)
4840 {
4841 if(wParam > 0xffff) /* convert to surrogates */
4842 {
4843 wParam -= 0x10000;
4844 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
4845 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
4846 }
4847 else EDIT_WM_Char(es, wParam);
4848 }
4849 return 0;
4850 }
4851 break;
4852
4853 case WM_CLEAR:
4854 EDIT_WM_Clear(es);
4855 break;
4856
4857 case WM_COMMAND:
4858 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
4859 break;
4860
4861 case WM_CONTEXTMENU:
4862 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4863 break;
4864
4865 case WM_COPY:
4866 EDIT_WM_Copy(es);
4867 break;
4868
4869 case WM_CREATE:
4870 if(unicode)
4871 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
4872 else
4873 {
4874 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
4875 LPWSTR nameW = NULL;
4876 if(nameA)
4877 {
4878 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
4879 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4880 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
4881 }
4882 result = EDIT_WM_Create(es, nameW);
4883 HeapFree(GetProcessHeap(), 0, nameW);
4884 }
4885 break;
4886
4887 case WM_CUT:
4888 EDIT_WM_Cut(es);
4889 break;
4890
4891 case WM_ENABLE:
4892 es->bEnableState = (BOOL) wParam;
4893 EDIT_UpdateText(es, NULL, TRUE);
4894 break;
4895
4896 case WM_ERASEBKGND:
4897 /* we do the proper erase in EDIT_WM_Paint */
4898 result = 1;
4899 break;
4900
4901 case WM_GETFONT:
4902 result = (LRESULT)es->font;
4903 break;
4904
4905 case WM_GETTEXT:
4906 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
4907 break;
4908
4909 case WM_GETTEXTLENGTH:
4910 if (unicode) result = get_text_length(es);
4911 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
4912 NULL, 0, NULL, NULL );
4913 break;
4914
4915 case WM_HSCROLL:
4916 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4917 break;
4918
4919 case WM_KEYDOWN:
4920 result = EDIT_WM_KeyDown(es, (INT)wParam);
4921 break;
4922
4923 case WM_KILLFOCUS:
4924 result = EDIT_WM_KillFocus(es);
4925 break;
4926
4927 case WM_LBUTTONDBLCLK:
4928 result = EDIT_WM_LButtonDblClk(es);
4929 break;
4930
4931 case WM_LBUTTONDOWN:
4932 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
4933 break;
4934
4935 case WM_LBUTTONUP:
4936 result = EDIT_WM_LButtonUp(es);
4937 break;
4938
4939 case WM_MBUTTONDOWN:
4940 result = EDIT_WM_MButtonDown(es);
4941 break;
4942
4943 case WM_MOUSEMOVE:
4944 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4945 break;
4946
4947 case WM_PRINTCLIENT:
4948 case WM_PAINT:
4949 EDIT_WM_Paint(es, (HDC)wParam);
4950 break;
4951
4952 case WM_PASTE:
4953 EDIT_WM_Paste(es);
4954 break;
4955
4956 case WM_SETFOCUS:
4957 EDIT_WM_SetFocus(es);
4958 break;
4959
4960 case WM_SETFONT:
4961 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
4962 break;
4963
4964 case WM_SETREDRAW:
4965 /* FIXME: actually set an internal flag and behave accordingly */
4966 break;
4967
4968 case WM_SETTEXT:
4969 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
4970 result = TRUE;
4971 break;
4972
4973 case WM_SIZE:
4974 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
4975 break;
4976
4977 case WM_STYLECHANGED:
4978 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
4979 break;
4980
4981 case WM_STYLECHANGING:
4982 result = 0; /* See EDIT_WM_StyleChanged */
4983 break;
4984
4985 case WM_SYSKEYDOWN:
4986 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
4987 break;
4988
4989 case WM_TIMER:
4990 EDIT_WM_Timer(es);
4991 break;
4992
4993 case WM_VSCROLL:
4994 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4995 break;
4996
4997 case WM_MOUSEWHEEL:
4998 {
4999 int gcWheelDelta = 0;
5000 UINT pulScrollLines = 3;
5001 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
5002
5003 if (wParam & (MK_SHIFT | MK_CONTROL)) {
5004 result = DefWindowProcW(hwnd, msg, wParam, lParam);
5005 break;
5006 }
5007 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
5008 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
5009 {
5010 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
5011 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
5012 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
5013 }
5014 }
5015 break;
5016
5017
5018 /* IME messages to make the edit control IME aware */
5019 case WM_IME_SETCONTEXT:
5020 break;
5021
5022 case WM_IME_STARTCOMPOSITION:
5023 es->composition_start = es->selection_end;
5024 es->composition_len = 0;
5025 break;
5026
5027 case WM_IME_COMPOSITION:
5028 EDIT_ImeComposition(hwnd, lParam, es);
5029 break;
5030
5031 case WM_IME_ENDCOMPOSITION:
5032 if (es->composition_len > 0)
5033 {
5034 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5035 es->selection_end = es->selection_start;
5036 es->composition_len= 0;
5037 }
5038 break;
5039
5040 case WM_IME_COMPOSITIONFULL:
5041 break;
5042
5043 case WM_IME_SELECT:
5044 break;
5045
5046 case WM_IME_CONTROL:
5047 break;
5048
5049 default:
5050 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
5051 break;
5052 }
5053
5054 if (IsWindow(hwnd) && es) EDIT_UnlockBuffer(es, FALSE);
5055
5056 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
5057
5058 return result;
5059 }
5060
5061
5062 /*********************************************************************
5063 * edit class descriptor
5064 */
5065 static const WCHAR editW[] = {'E','d','i','t',0};
5066 const struct builtin_class_descr EDIT_builtin_class =
5067 {
5068 editW, /* name */
5069 CS_DBLCLKS | CS_PARENTDC, /* style */
5070 WINPROC_EDIT, /* proc */
5071 #ifdef __i386__
5072 sizeof(EDITSTATE *) + sizeof(WORD), /* extra */
5073 #else
5074 sizeof(EDITSTATE *), /* extra */
5075 #endif
5076 IDC_IBEAM, /* cursor */
5077 0 /* brush */
5078 };
Windows API implementation