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mstask: TaskScheduler stub with AddRef, QueryInterface, and Release.
[wine.git] / dlls / riched20 / editor.c
blob2dd758a873f9040233fb7fba56af2fa7944c3c31
1 /*
2 * RichEdit - functions dealing with editor object
3 *
4 * Copyright 2004 by Krzysztof Foltman
5 * Copyright 2005 by Cihan Altinay
6 * Copyright 2005 by Phil Krylov
7 * Copyright 2008 Eric Pouech
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
24 /*
25 API implementation status:
26
27 Messages (ANSI versions not done yet)
28 + EM_AUTOURLDETECT 2.0
29 + EM_CANPASTE
30 + EM_CANREDO 2.0
31 + EM_CANUNDO
32 + EM_CHARFROMPOS
33 - EM_DISPLAYBAND
34 + EM_EMPTYUNDOBUFFER
35 + EM_EXGETSEL
36 + EM_EXLIMITTEXT
37 + EM_EXLINEFROMCHAR
38 + EM_EXSETSEL
39 + EM_FINDTEXT (only FR_DOWN flag implemented)
40 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_FINDWORDBREAK
42 - EM_FMTLINES
43 - EM_FORMATRANGE
44 + EM_GETAUTOURLDETECT 2.0
45 - EM_GETBIDIOPTIONS 3.0
46 - EM_GETCHARFORMAT (partly done)
47 - EM_GETEDITSTYLE
48 + EM_GETEVENTMASK
49 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
50 - EM_GETIMECOLOR 1.0asian
51 - EM_GETIMECOMPMODE 2.0
52 - EM_GETIMEOPTIONS 1.0asian
53 - EM_GETIMESTATUS
54 - EM_GETLANGOPTIONS 2.0
55 + EM_GETLIMITTEXT
56 + EM_GETLINE
57 + EM_GETLINECOUNT returns number of rows, not of paragraphs
58 + EM_GETMODIFY
59 - EM_GETOLEINTERFACE
60 + EM_GETOPTIONS
61 + EM_GETPARAFORMAT
62 + EM_GETPASSWORDCHAR 2.0
63 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETRECT
65 - EM_GETREDONAME 2.0
66 + EM_GETSEL
67 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETSCROLLPOS 3.0 (only Y value valid)
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 - EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 - EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 - EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_SETLANGOPTIONS 2.0
103 - EM_SETLIMITTEXT
104 + EM_SETMODIFY (not sure if implementation is correct)
105 - EM_SETOLECALLBACK
106 + EM_SETOPTIONS (partially implemented)
107 - EM_SETPALETTE 2.0
108 + EM_SETPARAFORMAT
109 + EM_SETPASSWORDCHAR 2.0
110 - EM_SETPUNCTUATION 1.0asian
111 + EM_SETREADONLY no beep on modification attempt
112 + EM_SETRECT
113 + EM_SETRECTNP (EM_SETRECT without repainting)
114 + EM_SETSEL
115 + EM_SETSCROLLPOS 3.0
116 - EM_SETTABSTOPS 3.0
117 - EM_SETTARGETDEVICE (partial)
118 + EM_SETTEXTEX 3.0 (proper style?)
119 - EM_SETTEXTMODE 2.0
120 - EM_SETTYPOGRAPHYOPTIONS 3.0
121 + EM_SETUNDOLIMIT 2.0
122 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
123 - EM_SETWORDBREAKPROCEX
124 - EM_SETWORDWRAPMODE 1.0asian
125 + EM_SETZOOM 3.0
126 + EM_SHOWSCROLLBAR 2.0
127 + EM_STOPGROUPTYPING 2.0
128 + EM_STREAMIN
129 + EM_STREAMOUT
130 + EM_UNDO
131 + WM_CHAR
132 + WM_CLEAR
133 + WM_COPY
134 + WM_CUT
135 + WM_GETDLGCODE (the current implementation is incomplete)
136 + WM_GETTEXT (ANSI&Unicode)
137 + WM_GETTEXTLENGTH (ANSI version sucks)
138 + WM_PASTE
139 + WM_SETFONT
140 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
141 - WM_STYLECHANGING
142 - WM_STYLECHANGED (things like read-only flag)
143 - WM_UNICHAR
144
145 Notifications
146
147 * EN_CHANGE (sent from the wrong place)
148 - EN_CORRECTTEXT
149 - EN_DROPFILES
150 - EN_ERRSPACE
151 - EN_HSCROLL
152 - EN_IMECHANGE
153 + EN_KILLFOCUS
154 - EN_LINK
155 - EN_MAXTEXT
156 - EN_MSGFILTER
157 - EN_OLEOPFAILED
158 - EN_PROTECTED
159 + EN_REQUESTRESIZE
160 - EN_SAVECLIPBOARD
161 + EN_SELCHANGE
162 + EN_SETFOCUS
163 - EN_STOPNOUNDO
164 * EN_UPDATE (sent from the wrong place)
165 - EN_VSCROLL
166
167 Styles
168
169 - ES_AUTOHSCROLL
170 - ES_AUTOVSCROLL
171 - ES_CENTER
172 + ES_DISABLENOSCROLL (scrollbar is always visible)
173 - ES_EX_NOCALLOLEINIT
174 - ES_LEFT
175 - ES_MULTILINE (currently single line controls aren't supported)
176 - ES_NOIME
177 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
178 - ES_RIGHT
179 - ES_SAVESEL
180 - ES_SELFIME
181 - ES_SUNKEN
182 - ES_VERTICAL
183 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
184 - WS_SETFONT
185 - WS_HSCROLL
186 + WS_VSCROLL
187 */
188
189 /*
190 * RICHED20 TODO (incomplete):
191 *
192 * - messages/styles/notifications listed above
193 * - add remaining CHARFORMAT/PARAFORMAT fields
194 * - right/center align should strip spaces from the beginning
195 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
196 * - COM interface (looks like a major pain in the TODO list)
197 * - calculate heights of pictures (half-done)
198 * - horizontal scrolling (not even started)
199 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
200 * - find/replace
201 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
202 * - italic caret with italic fonts
203 * - IME
204 * - most notifications aren't sent at all (the most important ones are)
205 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
206 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
207 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
208 * - full justification
209 * - hyphenation
210 * - tables
211 * - ListBox & ComboBox not implemented
212 *
213 * Bugs that are probably fixed, but not so easy to verify:
214 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
215 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
216 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
217 * - caret shouldn't be displayed when selection isn't empty
218 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
219 * - undo for setting default format (done, might be buggy)
220 * - styles might be not released properly (looks like they work like charm, but who knows?
221 *
222 */
223
224 #include "editor.h"
225 #include "commdlg.h"
226 #include "winreg.h"
227 #define NO_SHLWAPI_STREAM
228 #include "shlwapi.h"
229 #include "rtf.h"
230 #include "imm.h"
231 #include "res.h"
232
233 #define STACK_SIZE_DEFAULT 100
234 #define STACK_SIZE_MAX 1000
235
236 #define TEXT_LIMIT_DEFAULT 32767
237
238 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
239
240 static BOOL ME_RegisterEditorClass(HINSTANCE);
241
242 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
243 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
244 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
245 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
246 static HCURSOR hLeft;
247
248 int me_debug = 0;
249 HANDLE me_heap = NULL;
250
251 static BOOL ME_ListBoxRegistered = FALSE;
252 static BOOL ME_ComboBoxRegistered = FALSE;
253
254 static inline int is_version_nt(void)
255 {
256 return !(GetVersion() & 0x80000000);
257 }
258
259 static ME_TextBuffer *ME_MakeText(void) {
260
261 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
262
263 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
264 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
265
266 p1->prev = NULL;
267 p1->next = p2;
268 p2->prev = p1;
269 p2->next = NULL;
270 p1->member.para.next_para = p2;
271 p2->member.para.prev_para = p1;
272 p2->member.para.nCharOfs = 0;
273
274 buf->pFirst = p1;
275 buf->pLast = p2;
276 buf->pCharStyle = NULL;
277
278 return buf;
279 }
280
281
282 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
283 {
284 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
285 WCHAR *pText;
286
287 TRACE("%08x %p\n", dwFormat, stream);
288
289 do {
290 long nWideChars = 0;
291
292 if (!stream->dwSize)
293 {
294 ME_StreamInFill(stream);
295 if (stream->editstream->dwError)
296 break;
297 if (!stream->dwSize)
298 break;
299 }
300
301 if (!(dwFormat & SF_UNICODE))
302 {
303 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
304 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
305 pText = wszText;
306 }
307 else
308 {
309 nWideChars = stream->dwSize >> 1;
310 pText = (WCHAR *)stream->buffer;
311 }
312
313 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
314 if (stream->dwSize == 0)
315 break;
316 stream->dwSize = 0;
317 } while(1);
318 ME_CommitUndo(editor);
319 ME_UpdateRepaint(editor);
320 return 0;
321 }
322
323 static void ME_RTFCharAttrHook(RTF_Info *info)
324 {
325 CHARFORMAT2W fmt;
326 fmt.cbSize = sizeof(fmt);
327 fmt.dwMask = 0;
328 fmt.dwEffects = 0;
329
330 switch(info->rtfMinor)
331 {
332 case rtfPlain:
333 /* FIXME add more flags once they're implemented */
334 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
335 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
336 fmt.yHeight = 12*20; /* 12pt */
337 fmt.wWeight = FW_NORMAL;
338 fmt.bUnderlineType = CFU_UNDERLINENONE;
339 break;
340 case rtfBold:
341 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
342 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
343 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
344 break;
345 case rtfItalic:
346 fmt.dwMask = CFM_ITALIC;
347 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
348 break;
349 case rtfUnderline:
350 fmt.dwMask = CFM_UNDERLINETYPE;
351 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
352 break;
353 case rtfDotUnderline:
354 fmt.dwMask = CFM_UNDERLINETYPE;
355 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
356 break;
357 case rtfDbUnderline:
358 fmt.dwMask = CFM_UNDERLINETYPE;
359 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
360 break;
361 case rtfWordUnderline:
362 fmt.dwMask = CFM_UNDERLINETYPE;
363 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
364 break;
365 case rtfNoUnderline:
366 fmt.dwMask = CFM_UNDERLINETYPE;
367 fmt.bUnderlineType = CFU_UNDERLINENONE;
368 break;
369 case rtfStrikeThru:
370 fmt.dwMask = CFM_STRIKEOUT;
371 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
372 break;
373 case rtfSubScript:
374 case rtfSuperScript:
375 case rtfSubScrShrink:
376 case rtfSuperScrShrink:
377 case rtfNoSuperSub:
378 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
379 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
380 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
381 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
382 break;
383 case rtfInvisible:
384 fmt.dwMask = CFM_HIDDEN;
385 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
386 break;
387 case rtfBackColor:
388 fmt.dwMask = CFM_BACKCOLOR;
389 fmt.dwEffects = 0;
390 if (info->rtfParam == 0)
391 fmt.dwEffects = CFE_AUTOBACKCOLOR;
392 else if (info->rtfParam != rtfNoParam)
393 {
394 RTFColor *c = RTFGetColor(info, info->rtfParam);
395 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
396 }
397 break;
398 case rtfForeColor:
399 fmt.dwMask = CFM_COLOR;
400 fmt.dwEffects = 0;
401 if (info->rtfParam == 0)
402 fmt.dwEffects = CFE_AUTOCOLOR;
403 else if (info->rtfParam != rtfNoParam)
404 {
405 RTFColor *c = RTFGetColor(info, info->rtfParam);
406 if (c)
407 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
408 else
409 fmt.crTextColor = 0;
410 }
411 break;
412 case rtfFontNum:
413 if (info->rtfParam != rtfNoParam)
414 {
415 RTFFont *f = RTFGetFont(info, info->rtfParam);
416 if (f)
417 {
418 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
419 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
420 fmt.bCharSet = f->rtfFCharSet;
421 fmt.dwMask = CFM_FACE | CFM_CHARSET;
422 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
423 }
424 }
425 break;
426 case rtfFontSize:
427 fmt.dwMask = CFM_SIZE;
428 if (info->rtfParam != rtfNoParam)
429 fmt.yHeight = info->rtfParam*10;
430 break;
431 }
432 if (fmt.dwMask) {
433 ME_Style *style2;
434 RTFFlushOutputBuffer(info);
435 /* FIXME too slow ? how come ? */
436 style2 = ME_ApplyStyle(info->style, &fmt);
437 ME_ReleaseStyle(info->style);
438 info->style = style2;
439 info->styleChanged = TRUE;
440 }
441 }
442
443 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
444 the same tags mean different things in different contexts */
445 static void ME_RTFParAttrHook(RTF_Info *info)
446 {
447 PARAFORMAT2 fmt;
448 fmt.cbSize = sizeof(fmt);
449 fmt.dwMask = 0;
450
451 switch(info->rtfMinor)
452 {
453 case rtfParDef: /* restores default paragraph attributes */
454 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS | PFM_OFFSET |
455 PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE | PFM_STARTINDENT | PFM_TABLE;
456 /* TODO: numbering, shading */
457 fmt.wAlignment = PFA_LEFT;
458 fmt.cTabCount = 0;
459 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
460 fmt.wBorderWidth = fmt.wBorders = 0;
461 fmt.wBorderSpace = 0;
462 fmt.bLineSpacingRule = 0;
463 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
464 fmt.dyLineSpacing = 0;
465 fmt.wEffects &= ~PFE_TABLE;
466 break;
467 case rtfInTable:
468 {
469 ME_DisplayItem *para;
470
471 RTFFlushOutputBuffer(info);
472 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
473 assert(para->member.para.pCells);
474 fmt.dwMask |= PFM_TABLE;
475 fmt.wEffects |= PFE_TABLE;
476 break;
477 }
478 case rtfFirstIndent:
479 ME_GetSelectionParaFormat(info->editor, &fmt);
480 fmt.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
481 fmt.dxStartIndent += info->rtfParam;
482 fmt.dxOffset = -info->rtfParam;
483 break;
484 case rtfLeftIndent:
485 /* we assume rtfLeftIndent is always specified before rtfFirstIndent */
486 ME_GetSelectionParaFormat(info->editor, &fmt);
487 fmt.dwMask |= PFM_STARTINDENT;
488 fmt.dxStartIndent = info->rtfParam;
489 fmt.dxOffset = 0;
490 break;
491 case rtfRightIndent:
492 fmt.dwMask = PFM_RIGHTINDENT;
493 fmt.dxRightIndent = info->rtfParam;
494 break;
495 case rtfQuadLeft:
496 case rtfQuadJust:
497 fmt.dwMask = PFM_ALIGNMENT;
498 fmt.wAlignment = PFA_LEFT;
499 break;
500 case rtfQuadRight:
501 fmt.dwMask = PFM_ALIGNMENT;
502 fmt.wAlignment = PFA_RIGHT;
503 break;
504 case rtfQuadCenter:
505 fmt.dwMask = PFM_ALIGNMENT;
506 fmt.wAlignment = PFA_CENTER;
507 break;
508 case rtfTabPos:
509 ME_GetSelectionParaFormat(info->editor, &fmt);
510 if (!(fmt.dwMask & PFM_TABSTOPS))
511 {
512 fmt.dwMask |= PFM_TABSTOPS;
513 fmt.cTabCount = 0;
514 }
515 if (fmt.cTabCount < MAX_TAB_STOPS)
516 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
517 break;
518 case rtfKeep:
519 fmt.dwMask = PFM_KEEP;
520 fmt.wEffects = PFE_KEEP;
521 break;
522 case rtfNoWidowControl:
523 fmt.dwMask = PFM_NOWIDOWCONTROL;
524 fmt.wEffects = PFE_NOWIDOWCONTROL;
525 break;
526 case rtfKeepNext:
527 fmt.dwMask = PFM_KEEPNEXT;
528 fmt.wEffects = PFE_KEEPNEXT;
529 break;
530 case rtfSpaceAfter:
531 fmt.dwMask = PFM_SPACEAFTER;
532 fmt.dySpaceAfter = info->rtfParam;
533 break;
534 case rtfSpaceBefore:
535 fmt.dwMask = PFM_SPACEBEFORE;
536 fmt.dySpaceBefore = info->rtfParam;
537 break;
538 case rtfSpaceBetween:
539 fmt.dwMask = PFM_LINESPACING;
540 if ((int)info->rtfParam > 0)
541 {
542 fmt.dyLineSpacing = info->rtfParam;
543 fmt.bLineSpacingRule = 3;
544 }
545 else
546 {
547 fmt.dyLineSpacing = info->rtfParam;
548 fmt.bLineSpacingRule = 4;
549 }
550 case rtfSpaceMultiply:
551 fmt.dwMask = PFM_LINESPACING;
552 fmt.dyLineSpacing = info->rtfParam * 20;
553 fmt.bLineSpacingRule = 5;
554 break;
555 case rtfParBullet:
556 fmt.dwMask = PFM_NUMBERING;
557 fmt.wNumbering = PFN_BULLET;
558 break;
559 case rtfParSimple:
560 fmt.dwMask = PFM_NUMBERING;
561 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
562 break;
563 case rtfParNumDecimal:
564 fmt.dwMask = PFM_NUMBERING;
565 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
566 break;
567 case rtfParNumIndent:
568 fmt.dwMask = PFM_NUMBERINGTAB;
569 fmt.wNumberingTab = info->rtfParam;
570 break;
571 case rtfParNumStartAt:
572 fmt.dwMask = PFM_NUMBERINGSTART;
573 fmt.wNumberingStart = info->rtfParam;
574 break;
575 case rtfBorderLeft:
576 ME_GetSelectionParaFormat(info->editor, &fmt);
577 if (!(fmt.dwMask & PFM_BORDER))
578 {
579 fmt.dwMask |= PFM_BORDER;
580 fmt.wBorderSpace = 0;
581 fmt.wBorderWidth = 1;
582 fmt.wBorders = 0;
583 }
584 fmt.wBorders |= 1;
585 break;
586 case rtfBorderRight:
587 ME_GetSelectionParaFormat(info->editor, &fmt);
588 if (!(fmt.dwMask & PFM_BORDER))
589 {
590 fmt.dwMask |= PFM_BORDER;
591 fmt.wBorderSpace = 0;
592 fmt.wBorderWidth = 1;
593 fmt.wBorders = 0;
594 }
595 fmt.wBorders |= 2;
596 break;
597 case rtfBorderTop:
598 ME_GetSelectionParaFormat(info->editor, &fmt);
599 if (!(fmt.dwMask & PFM_BORDER))
600 {
601 fmt.dwMask |= PFM_BORDER;
602 fmt.wBorderSpace = 0;
603 fmt.wBorderWidth = 1;
604 fmt.wBorders = 0;
605 }
606 fmt.wBorders |= 4;
607 break;
608 case rtfBorderBottom:
609 ME_GetSelectionParaFormat(info->editor, &fmt);
610 if (!(fmt.dwMask & PFM_BORDER))
611 {
612 fmt.dwMask |= PFM_BORDER;
613 fmt.wBorderSpace = 0;
614 fmt.wBorderWidth = 1;
615 fmt.wBorders = 0;
616 }
617 fmt.wBorders |= 8;
618 break;
619 case rtfBorderSingle:
620 ME_GetSelectionParaFormat(info->editor, &fmt);
621 /* we assume that borders have been created before (RTF spec) */
622 fmt.wBorders &= ~0x700;
623 fmt.wBorders |= 1 << 8;
624 break;
625 case rtfBorderThick:
626 ME_GetSelectionParaFormat(info->editor, &fmt);
627 /* we assume that borders have been created before (RTF spec) */
628 fmt.wBorders &= ~0x700;
629 fmt.wBorders |= 2 << 8;
630 break;
631 case rtfBorderShadow:
632 ME_GetSelectionParaFormat(info->editor, &fmt);
633 /* we assume that borders have been created before (RTF spec) */
634 fmt.wBorders &= ~0x700;
635 fmt.wBorders |= 10 << 8;
636 break;
637 case rtfBorderDouble:
638 ME_GetSelectionParaFormat(info->editor, &fmt);
639 /* we assume that borders have been created before (RTF spec) */
640 fmt.wBorders &= ~0x700;
641 fmt.wBorders |= 7 << 8;
642 break;
643 case rtfBorderDot:
644 ME_GetSelectionParaFormat(info->editor, &fmt);
645 /* we assume that borders have been created before (RTF spec) */
646 fmt.wBorders &= ~0x700;
647 fmt.wBorders |= 11 << 8;
648 break;
649 case rtfBorderWidth:
650 ME_GetSelectionParaFormat(info->editor, &fmt);
651 /* we assume that borders have been created before (RTF spec) */
652 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
653 break;
654 case rtfBorderSpace:
655 ME_GetSelectionParaFormat(info->editor, &fmt);
656 /* we assume that borders have been created before (RTF spec) */
657 fmt.wBorderSpace = info->rtfParam;
658 break;
659 }
660 if (fmt.dwMask) {
661 RTFFlushOutputBuffer(info);
662 /* FIXME too slow ? how come ?*/
663 ME_SetSelectionParaFormat(info->editor, &fmt);
664 }
665 }
666
667 static void ME_RTFTblAttrHook(RTF_Info *info)
668 {
669 ME_DisplayItem *para;
670
671 switch (info->rtfMinor)
672 {
673 case rtfRowDef:
674 RTFFlushOutputBuffer(info);
675 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
676
677 /* Release possibly inherited cell definitions */
678 ME_DestroyTableCellList(para);
679
680 para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
681 para->member.para.pCells->nRightBoundary = 0;
682 para->member.para.pCells->next = NULL;
683 para->member.para.pLastCell = para->member.para.pCells;
684 break;
685 case rtfCellPos:
686 RTFFlushOutputBuffer(info);
687 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
688
689 if (para->member.para.pLastCell->nRightBoundary)
690 {
691 ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
692
693 pCell->next = NULL;
694 para->member.para.pLastCell->next = pCell;
695 para->member.para.pLastCell = pCell;
696 }
697 para->member.para.pLastCell->nRightBoundary = info->rtfParam;
698 break;
699 }
700 }
701
702 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
703 const SIZEL* sz)
704 {
705 LPOLEOBJECT lpObject = NULL;
706 LPSTORAGE lpStorage = NULL;
707 LPOLECLIENTSITE lpClientSite = NULL;
708 LPDATAOBJECT lpDataObject = NULL;
709 LPOLECACHE lpOleCache = NULL;
710 STGMEDIUM stgm;
711 FORMATETC fm;
712 CLSID clsid;
713 BOOL ret = FALSE;
714 DWORD conn;
715
716 if (hemf)
717 {
718 stgm.tymed = TYMED_ENHMF;
719 stgm.u.hEnhMetaFile = hemf;
720 fm.cfFormat = CF_ENHMETAFILE;
721 }
722 else if (hbmp)
723 {
724 stgm.tymed = TYMED_GDI;
725 stgm.u.hBitmap = hbmp;
726 fm.cfFormat = CF_BITMAP;
727 }
728 stgm.pUnkForRelease = NULL;
729
730 fm.ptd = NULL;
731 fm.dwAspect = DVASPECT_CONTENT;
732 fm.lindex = -1;
733 fm.tymed = stgm.tymed;
734
735 if (!info->lpRichEditOle)
736 {
737 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
738 }
739
740 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
741 #if 0
742 /* FIXME: enable it when rich-edit properly implements this method */
743 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
744 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
745 #endif
746 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
747 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
748 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
749 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
750 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
751 {
752 REOBJECT reobject;
753
754 reobject.cbStruct = sizeof(reobject);
755 reobject.cp = REO_CP_SELECTION;
756 reobject.clsid = clsid;
757 reobject.poleobj = lpObject;
758 reobject.pstg = lpStorage;
759 reobject.polesite = lpClientSite;
760 /* convert from twips to .01 mm */
761 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
762 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
763 reobject.dvaspect = DVASPECT_CONTENT;
764 reobject.dwFlags = 0; /* FIXME */
765 reobject.dwUser = 0;
766
767 /* FIXME: could be simpler */
768 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
769 }
770
771 if (lpObject) IOleObject_Release(lpObject);
772 if (lpClientSite) IOleClientSite_Release(lpClientSite);
773 if (lpStorage) IStorage_Release(lpStorage);
774 if (lpDataObject) IDataObject_Release(lpDataObject);
775 if (lpOleCache) IOleCache_Release(lpOleCache);
776
777 return ret;
778 }
779
780 static void ME_RTFReadPictGroup(RTF_Info *info)
781 {
782 SIZEL sz;
783 BYTE* buffer = NULL;
784 unsigned bufsz, bufidx;
785 BOOL flip;
786 BYTE val;
787 METAFILEPICT mfp;
788 HENHMETAFILE hemf;
789 HBITMAP hbmp;
790 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
791
792 RTFGetToken (info);
793 if (info->rtfClass == rtfEOF)
794 return;
795 mfp.mm = MM_TEXT;
796 /* fetch picture type */
797 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
798 {
799 mfp.mm = info->rtfParam;
800 gfx = gfx_metafile;
801 }
802 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
803 {
804 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
805 gfx = gfx_dib;
806 }
807 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
808 {
809 gfx = gfx_enhmetafile;
810 }
811 else
812 {
813 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
814 goto skip_group;
815 }
816 sz.cx = sz.cy = 0;
817 /* fetch picture attributes */
818 for (;;)
819 {
820 RTFGetToken (info);
821 if (info->rtfClass == rtfEOF)
822 return;
823 if (info->rtfClass == rtfText)
824 break;
825 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
826 {
827 ERR("Expected picture attribute (%d %d)\n",
828 info->rtfClass, info->rtfMajor);
829 goto skip_group;
830 }
831 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
832 {
833 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
834 }
835 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
836 {
837 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
838 }
839 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
840 sz.cx = info->rtfParam;
841 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
842 sz.cy = info->rtfParam;
843 else
844 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
845 }
846 /* fetch picture data */
847 bufsz = 1024;
848 bufidx = 0;
849 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
850 val = info->rtfMajor;
851 for (flip = TRUE;; flip = !flip)
852 {
853 RTFGetToken (info);
854 if (info->rtfClass == rtfEOF)
855 {
856 HeapFree(GetProcessHeap(), 0, buffer);
857 return; /* Warn ?? */
858 }
859 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
860 break;
861 if (info->rtfClass != rtfText) goto skip_group;
862 if (flip)
863 {
864 if (bufidx >= bufsz &&
865 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
866 goto skip_group;
867 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
868 }
869 else
870 val = info->rtfMajor;
871 }
872 if (flip) FIXME("wrong hex string\n");
873
874 switch (gfx)
875 {
876 case gfx_enhmetafile:
877 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
878 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
879 break;
880 case gfx_metafile:
881 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
882 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
883 break;
884 case gfx_dib:
885 {
886 BITMAPINFO* bi = (BITMAPINFO*)buffer;
887 HDC hdc = GetDC(0);
888 unsigned nc = bi->bmiHeader.biClrUsed;
889
890 /* not quite right, especially for bitfields type of compression */
891 if (!nc && bi->bmiHeader.biBitCount <= 8)
892 nc = 1 << bi->bmiHeader.biBitCount;
893 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
894 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
895 bi, DIB_RGB_COLORS)))
896 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
897 ReleaseDC(0, hdc);
898 }
899 break;
900 default:
901 break;
902 }
903 HeapFree(GetProcessHeap(), 0, buffer);
904 RTFRouteToken (info); /* feed "}" back to router */
905 return;
906 skip_group:
907 HeapFree(GetProcessHeap(), 0, buffer);
908 RTFSkipGroup(info);
909 RTFRouteToken(info); /* feed "}" back to router */
910 }
911
912 /* for now, lookup the \result part and use it, whatever the object */
913 static void ME_RTFReadObjectGroup(RTF_Info *info)
914 {
915 for (;;)
916 {
917 RTFGetToken (info);
918 if (info->rtfClass == rtfEOF)
919 return;
920 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
921 break;
922 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
923 {
924 RTFGetToken (info);
925 if (info->rtfClass == rtfEOF)
926 return;
927 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
928 {
929 int level = 1;
930
931 while (RTFGetToken (info) != rtfEOF)
932 {
933 if (info->rtfClass == rtfGroup)
934 {
935 if (info->rtfMajor == rtfBeginGroup) level++;
936 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
937 }
938 RTFRouteToken(info);
939 }
940 }
941 else RTFSkipGroup(info);
942 continue;
943 }
944 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
945 {
946 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
947 return;
948 }
949 }
950 RTFRouteToken(info); /* feed "}" back to router */
951 }
952
953 static void ME_RTFReadHook(RTF_Info *info) {
954 switch(info->rtfClass)
955 {
956 case rtfGroup:
957 switch(info->rtfMajor)
958 {
959 case rtfBeginGroup:
960 if (info->stackTop < maxStack) {
961 info->stack[info->stackTop].fmt = info->style->fmt;
962 info->stack[info->stackTop].codePage = info->codePage;
963 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
964 }
965 info->stackTop++;
966 info->styleChanged = FALSE;
967 break;
968 case rtfEndGroup:
969 {
970 ME_Style *s;
971 RTFFlushOutputBuffer(info);
972 info->stackTop--;
973 if (info->stackTop<=0) {
974 info->rtfClass = rtfEOF;
975 return;
976 }
977 assert(info->stackTop >= 0);
978 if (info->styleChanged)
979 {
980 /* FIXME too slow ? how come ? */
981 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
982 ME_ReleaseStyle(info->style);
983 info->style = s;
984 info->codePage = info->stack[info->stackTop].codePage;
985 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
986 }
987 break;
988 }
989 }
990 break;
991 case rtfControl:
992 switch(info->rtfMajor)
993 {
994 case rtfCharAttr:
995 ME_RTFCharAttrHook(info);
996 break;
997 case rtfParAttr:
998 ME_RTFParAttrHook(info);
999 break;
1000 case rtfTblAttr:
1001 ME_RTFTblAttrHook(info);
1002 break;
1003 case rtfSpecialChar:
1004 if (info->rtfMinor == rtfCell)
1005 {
1006 RTFFlushOutputBuffer(info);
1007 ME_InsertTableCellFromCursor(info->editor, 0);
1008 }
1009 }
1010 break;
1011 }
1012 }
1013
1014 void
1015 ME_StreamInFill(ME_InStream *stream)
1016 {
1017 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1018 (BYTE *)stream->buffer,
1019 sizeof(stream->buffer),
1020 (LONG *)&stream->dwSize);
1021 stream->dwUsed = 0;
1022 }
1023
1024 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1025 {
1026 RTF_Info parser;
1027 ME_Style *style;
1028 int from, to, to2, nUndoMode;
1029 int nEventMask = editor->nEventMask;
1030 ME_InStream inStream;
1031 BOOL invalidRTF = FALSE;
1032
1033 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
1034 editor->nEventMask = 0;
1035
1036 ME_GetSelection(editor, &from, &to);
1037 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1038 style = ME_GetSelectionInsertStyle(editor);
1039
1040 ME_InternalDeleteText(editor, from, to-from);
1041 }
1042 else {
1043 ME_DisplayItem *para_item;
1044 style = editor->pBuffer->pDefaultStyle;
1045 ME_AddRefStyle(style);
1046 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1047 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1048 from = to = 0;
1049 ME_ClearTempStyle(editor);
1050
1051 para_item = ME_GetParagraph(editor->pCursors[0].pRun);
1052 ME_SetDefaultParaFormat(para_item->member.para.pFmt);
1053 }
1054
1055
1056 /* Back up undo mode to a local variable */
1057 nUndoMode = editor->nUndoMode;
1058
1059 /* Only create an undo if SFF_SELECTION is set */
1060 if (!(format & SFF_SELECTION))
1061 editor->nUndoMode = umIgnore;
1062
1063 inStream.editstream = stream;
1064 inStream.editstream->dwError = 0;
1065 inStream.dwSize = 0;
1066 inStream.dwUsed = 0;
1067
1068 if (format & SF_RTF)
1069 {
1070 /* Check if it's really RTF, and if it is not, use plain text */
1071 ME_StreamInFill(&inStream);
1072 if (!inStream.editstream->dwError)
1073 {
1074 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1075 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1076 {
1077 invalidRTF = TRUE;
1078 inStream.editstream->dwError = -16;
1079 }
1080 }
1081 }
1082
1083 if (!invalidRTF && !inStream.editstream->dwError)
1084 {
1085 if (format & SF_RTF) {
1086 /* setup the RTF parser */
1087 memset(&parser, 0, sizeof parser);
1088 RTFSetEditStream(&parser, &inStream);
1089 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1090 parser.hwndEdit = editor->hWnd;
1091 parser.editor = editor;
1092 parser.style = style;
1093 WriterInit(&parser);
1094 RTFInit(&parser);
1095 RTFSetReadHook(&parser, ME_RTFReadHook);
1096 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1097 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1098 BeginFile(&parser);
1099
1100 /* do the parsing */
1101 RTFRead(&parser);
1102 RTFFlushOutputBuffer(&parser);
1103 RTFDestroy(&parser);
1104 if (parser.lpRichEditOle)
1105 IRichEditOle_Release(parser.lpRichEditOle);
1106
1107 if (!inStream.editstream->dwError && parser.stackTop > 0)
1108 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1109
1110 /* Remove last line break, as mandated by tests. This is not affected by
1111 CR/LF counters, since RTF streaming presents only \para tokens, which
1112 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1113 */
1114 if (stripLastCR) {
1115 int newfrom, newto;
1116 ME_GetSelection(editor, &newfrom, &newto);
1117 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1118 WCHAR lastchar[3] = {'\0', '\0'};
1119 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1120
1121 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1122 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1123 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize);
1124 }
1125 }
1126 }
1127
1128 style = parser.style;
1129 }
1130 else if (format & SF_TEXT)
1131 ME_StreamInText(editor, format, &inStream, style);
1132 else
1133 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1134 ME_GetSelection(editor, &to, &to2);
1135 /* put the cursor at the top */
1136 if (!(format & SFF_SELECTION))
1137 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1138 }
1139
1140 /* Restore saved undo mode */
1141 editor->nUndoMode = nUndoMode;
1142
1143 /* even if we didn't add an undo, we need to commit anything on the stack */
1144 ME_CommitUndo(editor);
1145
1146 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1147 if (!(format & SFF_SELECTION))
1148 ME_EmptyUndoStack(editor);
1149
1150 ME_ReleaseStyle(style);
1151 editor->nEventMask = nEventMask;
1152 ME_UpdateRepaint(editor);
1153 if (!(format & SFF_SELECTION)) {
1154 ME_ClearTempStyle(editor);
1155 }
1156 HideCaret(editor->hWnd);
1157 ME_MoveCaret(editor);
1158 ShowCaret(editor->hWnd);
1159 ME_SendSelChange(editor);
1160 ME_SendRequestResize(editor, FALSE);
1161
1162 return 0;
1163 }
1164
1165
1166 typedef struct tagME_RTFStringStreamStruct
1167 {
1168 char *string;
1169 int pos;
1170 int length;
1171 } ME_RTFStringStreamStruct;
1172
1173 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1174 {
1175 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1176 int count;
1177
1178 count = min(cb, pStruct->length - pStruct->pos);
1179 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1180 pStruct->pos += count;
1181 *pcb = count;
1182 return 0;
1183 }
1184
1185 static void
1186 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1187 {
1188 EDITSTREAM es;
1189 ME_RTFStringStreamStruct data;
1190
1191 data.string = string;
1192 data.length = strlen(string);
1193 data.pos = 0;
1194 es.dwCookie = (DWORD)&data;
1195 es.pfnCallback = ME_ReadFromRTFString;
1196 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1197 }
1198
1199
1200 ME_DisplayItem *
1201 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1202 {
1203 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1204 int runLength;
1205
1206 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1207 item = ME_FindItemFwd(item, diParagraph);
1208
1209 if (!item)
1210 return item;
1211
1212 nOffset -= item->member.para.nCharOfs;
1213 if (nItemType == diParagraph) {
1214 if (nItemOffset)
1215 *nItemOffset = nOffset;
1216 return item;
1217 }
1218
1219 do {
1220 item = ME_FindItemFwd(item, diRun);
1221 runLength = ME_StrLen(item->member.run.strText);
1222 if (item->member.run.nFlags & MERF_ENDPARA)
1223 runLength = item->member.run.nCR + item->member.run.nLF;
1224 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1225 if (item) {
1226 nOffset -= item->member.run.nCharOfs;
1227
1228 /* Special case: nOffset may not point exactly at the division between the
1229 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1230 into the next run, if one exists
1231 */
1232 if ( item->member.run.nFlags & MERF_ENDPARA
1233 && nOffset == item->member.run.nCR
1234 && item->member.run.nLF > 0) {
1235 ME_DisplayItem *nextItem;
1236 nextItem = ME_FindItemFwd(item, diRun);
1237 if (nextItem) {
1238 nOffset = 0;
1239 item = nextItem;
1240 }
1241 }
1242 if (nItemOffset)
1243 *nItemOffset = nOffset;
1244 }
1245 return item;
1246 }
1247
1248
1249 static int
1250 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1251 {
1252 const int nLen = lstrlenW(text);
1253 const int nTextLen = ME_GetTextLength(editor);
1254 int nStart, nEnd;
1255 int nMin, nMax;
1256 ME_DisplayItem *item;
1257 ME_DisplayItem *para;
1258 WCHAR wLastChar = ' ';
1259
1260 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1261 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1262
1263 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1264 FIXME("Flags 0x%08x not implemented\n",
1265 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1266
1267 nMin = chrg->cpMin;
1268 if (chrg->cpMax == -1)
1269 nMax = nTextLen;
1270 else
1271 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1272
1273 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1274 if (editor->bEmulateVersion10 && nMax == nTextLen)
1275 {
1276 flags |= FR_DOWN;
1277 }
1278
1279 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1280 if (editor->bEmulateVersion10 && nMax < nMin)
1281 {
1282 if (chrgText)
1283 {
1284 chrgText->cpMin = -1;
1285 chrgText->cpMax = -1;
1286 }
1287 return -1;
1288 }
1289
1290 /* when searching up, if cpMin < cpMax, then instead of searching
1291 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1292 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1293 * case, it is always bigger than cpMin.
1294 */
1295 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1296 {
1297 int nSwap = nMax;
1298
1299 nMax = nMin > nTextLen ? nTextLen : nMin;
1300 if (nMin < nSwap || chrg->cpMax == -1)
1301 nMin = 0;
1302 else
1303 nMin = nSwap;
1304 }
1305
1306 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1307 {
1308 if (chrgText)
1309 chrgText->cpMin = chrgText->cpMax = -1;
1310 return -1;
1311 }
1312
1313 if (flags & FR_DOWN) /* Forward search */
1314 {
1315 /* If possible, find the character before where the search starts */
1316 if ((flags & FR_WHOLEWORD) && nMin)
1317 {
1318 nStart = nMin - 1;
1319 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1320 if (!item)
1321 {
1322 if (chrgText)
1323 chrgText->cpMin = chrgText->cpMax = -1;
1324 return -1;
1325 }
1326 wLastChar = item->member.run.strText->szData[nStart];
1327 }
1328
1329 nStart = nMin;
1330 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1331 if (!item)
1332 {
1333 if (chrgText)
1334 chrgText->cpMin = chrgText->cpMax = -1;
1335 return -1;
1336 }
1337
1338 para = ME_GetParagraph(item);
1339 while (item
1340 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1341 {
1342 ME_DisplayItem *pCurItem = item;
1343 int nCurStart = nStart;
1344 int nMatched = 0;
1345
1346 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1347 {
1348 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1349 break;
1350
1351 nMatched++;
1352 if (nMatched == nLen)
1353 {
1354 ME_DisplayItem *pNextItem = pCurItem;
1355 int nNextStart = nCurStart;
1356 WCHAR wNextChar;
1357
1358 /* Check to see if next character is a whitespace */
1359 if (flags & FR_WHOLEWORD)
1360 {
1361 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1362 {
1363 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1364 nNextStart = -nMatched;
1365 }
1366
1367 if (pNextItem)
1368 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1369 else
1370 wNextChar = ' ';
1371
1372 if (isalnumW(wNextChar))
1373 break;
1374 }
1375
1376 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1377 if (chrgText)
1378 {
1379 chrgText->cpMin = nStart;
1380 chrgText->cpMax = nStart + nLen;
1381 }
1382 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1383 return nStart;
1384 }
1385 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1386 {
1387 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1388 para = ME_GetParagraph(pCurItem);
1389 nCurStart = -nMatched;
1390 }
1391 }
1392 if (pCurItem)
1393 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1394 else
1395 wLastChar = ' ';
1396
1397 nStart++;
1398 if (nStart == ME_StrLen(item->member.run.strText))
1399 {
1400 item = ME_FindItemFwd(item, diRun);
1401 para = ME_GetParagraph(item);
1402 nStart = 0;
1403 }
1404 }
1405 }
1406 else /* Backward search */
1407 {
1408 /* If possible, find the character after where the search ends */
1409 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1410 {
1411 nEnd = nMax + 1;
1412 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1413 if (!item)
1414 {
1415 if (chrgText)
1416 chrgText->cpMin = chrgText->cpMax = -1;
1417 return -1;
1418 }
1419 wLastChar = item->member.run.strText->szData[nEnd];
1420 }
1421
1422 nEnd = nMax;
1423 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1424 if (!item)
1425 {
1426 if (chrgText)
1427 chrgText->cpMin = chrgText->cpMax = -1;
1428 return -1;
1429 }
1430
1431 para = ME_GetParagraph(item);
1432
1433 while (item
1434 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1435 {
1436 ME_DisplayItem *pCurItem = item;
1437 int nCurEnd = nEnd;
1438 int nMatched = 0;
1439
1440 if (nCurEnd - nMatched == 0)
1441 {
1442 pCurItem = ME_FindItemBack(pCurItem, diRun);
1443 para = ME_GetParagraph(pCurItem);
1444 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1445 }
1446
1447 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1448 {
1449 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1450 break;
1451
1452 nMatched++;
1453 if (nMatched == nLen)
1454 {
1455 ME_DisplayItem *pPrevItem = pCurItem;
1456 int nPrevEnd = nCurEnd;
1457 WCHAR wPrevChar;
1458
1459 /* Check to see if previous character is a whitespace */
1460 if (flags & FR_WHOLEWORD)
1461 {
1462 if (nPrevEnd - nMatched == 0)
1463 {
1464 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1465 if (pPrevItem)
1466 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1467 }
1468
1469 if (pPrevItem)
1470 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1471 else
1472 wPrevChar = ' ';
1473
1474 if (isalnumW(wPrevChar))
1475 break;
1476 }
1477
1478 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1479 if (chrgText)
1480 {
1481 chrgText->cpMin = nStart;
1482 chrgText->cpMax = nStart + nLen;
1483 }
1484 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1485 return nStart;
1486 }
1487 if (nCurEnd - nMatched == 0)
1488 {
1489 pCurItem = ME_FindItemBack(pCurItem, diRun);
1490 /* Don't care about pCurItem becoming NULL here; it's already taken
1491 * care of in the exterior loop condition */
1492 para = ME_GetParagraph(pCurItem);
1493 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1494 }
1495 }
1496 if (pCurItem)
1497 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1498 else
1499 wLastChar = ' ';
1500
1501 nEnd--;
1502 if (nEnd < 0)
1503 {
1504 item = ME_FindItemBack(item, diRun);
1505 para = ME_GetParagraph(item);
1506 nEnd = ME_StrLen(item->member.run.strText);
1507 }
1508 }
1509 }
1510 TRACE("not found\n");
1511 if (chrgText)
1512 chrgText->cpMin = chrgText->cpMax = -1;
1513 return -1;
1514 }
1515
1516 /* helper to send a msg filter notification */
1517 static BOOL
1518 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1519 {
1520 MSGFILTER msgf;
1521
1522 msgf.nmhdr.hwndFrom = editor->hWnd;
1523 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1524 msgf.nmhdr.code = EN_MSGFILTER;
1525 msgf.msg = msg;
1526
1527 msgf.wParam = *wParam;
1528 msgf.lParam = *lParam;
1529 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1530 return FALSE;
1531 *wParam = msgf.wParam;
1532 *lParam = msgf.lParam;
1533 msgf.wParam = *wParam;
1534
1535 return TRUE;
1536 }
1537
1538 static BOOL
1539 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1540 {
1541 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1542 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1543
1544 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
1545 editor->nSelectionType = stPosition;
1546
1547 switch (nKey)
1548 {
1549 case VK_LEFT:
1550 case VK_RIGHT:
1551 case VK_HOME:
1552 case VK_END:
1553 editor->nUDArrowX = -1;
1554 /* fall through */
1555 case VK_UP:
1556 case VK_DOWN:
1557 case VK_PRIOR:
1558 case VK_NEXT:
1559 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
1560 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1561 return TRUE;
1562 case VK_BACK:
1563 case VK_DELETE:
1564 editor->nUDArrowX = -1;
1565 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1566 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1567 return FALSE;
1568 if (ME_IsSelection(editor))
1569 {
1570 ME_DeleteSelection(editor);
1571 ME_CommitUndo(editor);
1572 }
1573 else if (nKey == VK_DELETE)
1574 {
1575 /* Delete stops group typing.
1576 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
1577 ME_DeleteTextAtCursor(editor, 1, 1);
1578 ME_CommitUndo(editor);
1579 }
1580 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1581 {
1582 /* Backspace can be grouped for a single undo */
1583 ME_ContinueCoalescingTransaction(editor);
1584 ME_DeleteTextAtCursor(editor, 1, 1);
1585 ME_CommitCoalescingUndo(editor);
1586 }
1587 else
1588 return TRUE;
1589 ME_UpdateSelectionLinkAttribute(editor);
1590 ME_UpdateRepaint(editor);
1591 ME_SendRequestResize(editor, FALSE);
1592 return TRUE;
1593
1594 default:
1595 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
1596 editor->nUDArrowX = -1;
1597 if (ctrl_is_down)
1598 {
1599 if (nKey == 'W')
1600 {
1601 CHARFORMAT2W chf;
1602 char buf[2048];
1603 chf.cbSize = sizeof(chf);
1604
1605 ME_GetSelectionCharFormat(editor, &chf);
1606 ME_DumpStyleToBuf(&chf, buf);
1607 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1608 }
1609 if (nKey == 'Q')
1610 {
1611 ME_CheckCharOffsets(editor);
1612 }
1613 }
1614 }
1615 return FALSE;
1616 }
1617
1618 /* Process the message and calculate the new click count.
1619 *
1620 * returns: The click count if it is mouse down event, else returns 0. */
1621 static int ME_CalculateClickCount(HWND hWnd, UINT msg, WPARAM wParam,
1622 LPARAM lParam)
1623 {
1624 static int clickNum = 0;
1625 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
1626 return 0;
1627
1628 if ((msg == WM_LBUTTONDBLCLK) ||
1629 (msg == WM_RBUTTONDBLCLK) ||
1630 (msg == WM_MBUTTONDBLCLK) ||
1631 (msg == WM_XBUTTONDBLCLK))
1632 {
1633 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1634 }
1635
1636 if ((msg == WM_LBUTTONDOWN) ||
1637 (msg == WM_RBUTTONDOWN) ||
1638 (msg == WM_MBUTTONDOWN) ||
1639 (msg == WM_XBUTTONDOWN))
1640 {
1641 static MSG prevClickMsg;
1642 MSG clickMsg;
1643 clickMsg.hwnd = hWnd;
1644 clickMsg.message = msg;
1645 clickMsg.wParam = wParam;
1646 clickMsg.lParam = lParam;
1647 clickMsg.time = GetMessageTime();
1648 clickMsg.pt.x = (short)LOWORD(lParam);
1649 clickMsg.pt.y = (short)HIWORD(lParam);
1650 if ((clickNum != 0) &&
1651 (clickMsg.message == prevClickMsg.message) &&
1652 (clickMsg.hwnd == prevClickMsg.hwnd) &&
1653 (clickMsg.wParam == prevClickMsg.wParam) &&
1654 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
1655 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1656 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1657 {
1658 clickNum++;
1659 } else {
1660 clickNum = 1;
1661 }
1662 prevClickMsg = clickMsg;
1663 } else {
1664 return 0;
1665 }
1666 return clickNum;
1667 }
1668
1669 static BOOL ME_SetCursor(ME_TextEditor *editor)
1670 {
1671 POINT pt;
1672 BOOL isExact;
1673 int offset;
1674 DWORD messagePos = GetMessagePos();
1675 pt.x = (short)LOWORD(messagePos);
1676 pt.y = (short)HIWORD(messagePos);
1677 ScreenToClient(editor->hWnd, &pt);
1678 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
1679 (pt.x < editor->selofs ||
1680 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
1681 {
1682 SetCursor(hLeft);
1683 return TRUE;
1684 }
1685 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
1686 if (isExact)
1687 {
1688 if (editor->AutoURLDetect_bEnable)
1689 {
1690 ME_Cursor cursor;
1691 ME_Run *run;
1692 ME_CursorFromCharOfs(editor, offset, &cursor);
1693 run = &cursor.pRun->member.run;
1694 if (editor->AutoURLDetect_bEnable &&
1695 run->style->fmt.dwMask & CFM_LINK &&
1696 run->style->fmt.dwEffects & CFE_LINK)
1697 {
1698 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
1699 return TRUE;
1700 }
1701 }
1702 if (ME_IsSelection(editor))
1703 {
1704 int selStart, selEnd;
1705 ME_GetSelection(editor, &selStart, &selEnd);
1706 if (selStart <= offset && selEnd >= offset) {
1707 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
1708 return TRUE;
1709 }
1710 }
1711 }
1712 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
1713 return TRUE;
1714 }
1715
1716 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1717 {
1718 CHARRANGE selrange;
1719 HMENU menu;
1720 int seltype = 0;
1721 if(!editor->lpOleCallback)
1722 return FALSE;
1723 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
1724 if(selrange.cpMin == selrange.cpMax)
1725 seltype |= SEL_EMPTY;
1726 else
1727 {
1728 /* FIXME: Handle objects */
1729 seltype |= SEL_TEXT;
1730 if(selrange.cpMax-selrange.cpMin > 1)
1731 seltype |= SEL_MULTICHAR;
1732 }
1733 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1734 {
1735 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1736 DestroyMenu(menu);
1737 }
1738 return TRUE;
1739 }
1740
1741 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1742 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1743 int i;
1744 ed->hWnd = hWnd;
1745 ed->bEmulateVersion10 = FALSE;
1746 ed->pBuffer = ME_MakeText();
1747 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1748 ME_MakeFirstParagraph(ed);
1749 /* The four cursors are for:
1750 * 0 - The position where the caret is shown
1751 * 1 - The anchored end of the selection (for normal selection)
1752 * 2 & 3 - The anchored start and end respectively for word, line,
1753 * or paragraph selection.
1754 */
1755 ed->nCursors = 4;
1756 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1757 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1758 ed->pCursors[0].nOffset = 0;
1759 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1760 ed->pCursors[1].nOffset = 0;
1761 ed->pCursors[2] = ed->pCursors[0];
1762 ed->pCursors[3] = ed->pCursors[1];
1763 ed->nLastTotalLength = ed->nTotalLength = 0;
1764 ed->nHeight = 0;
1765 ed->nUDArrowX = -1;
1766 ed->nSequence = 0;
1767 ed->rgbBackColor = -1;
1768 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1769 ed->bCaretAtEnd = FALSE;
1770 ed->nEventMask = 0;
1771 ed->nModifyStep = 0;
1772 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1773 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1774 ed->nUndoStackSize = 0;
1775 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1776 ed->nUndoMode = umAddToUndo;
1777 ed->nParagraphs = 1;
1778 ed->nLastSelStart = ed->nLastSelEnd = 0;
1779 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1780 ed->bRedraw = TRUE;
1781 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL) ? FALSE : TRUE;
1782 ed->bHideSelection = FALSE;
1783 ed->nInvalidOfs = -1;
1784 ed->pfnWordBreak = NULL;
1785 ed->lpOleCallback = NULL;
1786 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1787 ed->AutoURLDetect_bEnable = FALSE;
1788 ed->bHaveFocus = FALSE;
1789 for (i=0; i<HFONT_CACHE_SIZE; i++)
1790 {
1791 ed->pFontCache[i].nRefs = 0;
1792 ed->pFontCache[i].nAge = 0;
1793 ed->pFontCache[i].hFont = NULL;
1794 }
1795
1796 ME_CheckCharOffsets(ed);
1797 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
1798 ed->selofs = SELECTIONBAR_WIDTH;
1799 else
1800 ed->selofs = 0;
1801 ed->nSelectionType = stPosition;
1802
1803 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1804 ed->cPasswordMask = '*';
1805 else
1806 ed->cPasswordMask = 0;
1807
1808 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
1809
1810 return ed;
1811 }
1812
1813 typedef struct tagME_GlobalDestStruct
1814 {
1815 HGLOBAL hData;
1816 int nLength;
1817 } ME_GlobalDestStruct;
1818
1819 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1820 {
1821 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1822 int i;
1823 WORD *pSrc, *pDest;
1824
1825 cb = cb >> 1;
1826 pDest = (WORD *)lpBuff;
1827 pSrc = (WORD *)GlobalLock(pData->hData);
1828 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1829 pDest[i] = pSrc[pData->nLength+i];
1830 }
1831 pData->nLength += i;
1832 *pcb = 2*i;
1833 GlobalUnlock(pData->hData);
1834 return 0;
1835 }
1836
1837 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1838 {
1839 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1840 int i;
1841 BYTE *pSrc, *pDest;
1842
1843 pDest = lpBuff;
1844 pSrc = (BYTE *)GlobalLock(pData->hData);
1845 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1846 pDest[i] = pSrc[pData->nLength+i];
1847 }
1848 pData->nLength += i;
1849 *pcb = i;
1850 GlobalUnlock(pData->hData);
1851 return 0;
1852 }
1853
1854
1855 void ME_DestroyEditor(ME_TextEditor *editor)
1856 {
1857 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1858 ME_DisplayItem *p = pFirst, *pNext = NULL;
1859 int i;
1860
1861 ME_ClearTempStyle(editor);
1862 ME_EmptyUndoStack(editor);
1863 while(p) {
1864 pNext = p->next;
1865 ME_DestroyDisplayItem(p);
1866 p = pNext;
1867 }
1868 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1869 for (i=0; i<HFONT_CACHE_SIZE; i++)
1870 {
1871 if (editor->pFontCache[i].hFont)
1872 DeleteObject(editor->pFontCache[i].hFont);
1873 }
1874 if (editor->rgbBackColor != -1)
1875 DeleteObject(editor->hbrBackground);
1876 if(editor->lpOleCallback)
1877 IUnknown_Release(editor->lpOleCallback);
1878
1879 FREE_OBJ(editor->pBuffer);
1880 FREE_OBJ(editor->pCursors);
1881
1882 FREE_OBJ(editor);
1883 }
1884
1885 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1886 {
1887 TRACE("\n");
1888 switch (fdwReason)
1889 {
1890 case DLL_PROCESS_ATTACH:
1891 DisableThreadLibraryCalls(hinstDLL);
1892 me_heap = HeapCreate (0, 0x10000, 0);
1893 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1894 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
1895 LookupInit();
1896 break;
1897
1898 case DLL_PROCESS_DETACH:
1899 UnregisterClassW(RichEdit20W, 0);
1900 UnregisterClassW(RichEdit50W, 0);
1901 UnregisterClassA("RichEdit20A", 0);
1902 UnregisterClassA("RichEdit50A", 0);
1903 if (ME_ListBoxRegistered)
1904 UnregisterClassW(REListBox20W, 0);
1905 if (ME_ComboBoxRegistered)
1906 UnregisterClassW(REComboBox20W, 0);
1907 LookupCleanup();
1908 HeapDestroy (me_heap);
1909 me_heap = NULL;
1910 break;
1911 }
1912 return TRUE;
1913 }
1914
1915
1916 #define UNSUPPORTED_MSG(e) \
1917 case e: \
1918 FIXME(#e ": stub\n"); \
1919 return DefWindowProcW(hWnd, msg, wParam, lParam);
1920
1921 static const char * const edit_messages[] = {
1922 "EM_GETSEL",
1923 "EM_SETSEL",
1924 "EM_GETRECT",
1925 "EM_SETRECT",
1926 "EM_SETRECTNP",
1927 "EM_SCROLL",
1928 "EM_LINESCROLL",
1929 "EM_SCROLLCARET",
1930 "EM_GETMODIFY",
1931 "EM_SETMODIFY",
1932 "EM_GETLINECOUNT",
1933 "EM_LINEINDEX",
1934 "EM_SETHANDLE",
1935 "EM_GETHANDLE",
1936 "EM_GETTHUMB",
1937 "EM_UNKNOWN_BF",
1938 "EM_UNKNOWN_C0",
1939 "EM_LINELENGTH",
1940 "EM_REPLACESEL",
1941 "EM_UNKNOWN_C3",
1942 "EM_GETLINE",
1943 "EM_LIMITTEXT",
1944 "EM_CANUNDO",
1945 "EM_UNDO",
1946 "EM_FMTLINES",
1947 "EM_LINEFROMCHAR",
1948 "EM_UNKNOWN_CA",
1949 "EM_SETTABSTOPS",
1950 "EM_SETPASSWORDCHAR",
1951 "EM_EMPTYUNDOBUFFER",
1952 "EM_GETFIRSTVISIBLELINE",
1953 "EM_SETREADONLY",
1954 "EM_SETWORDBREAKPROC",
1955 "EM_GETWORDBREAKPROC",
1956 "EM_GETPASSWORDCHAR",
1957 "EM_SETMARGINS",
1958 "EM_GETMARGINS",
1959 "EM_GETLIMITTEXT",
1960 "EM_POSFROMCHAR",
1961 "EM_CHARFROMPOS"
1962 };
1963
1964 static const char * const richedit_messages[] = {
1965 "EM_CANPASTE",
1966 "EM_DISPLAYBAND",
1967 "EM_EXGETSEL",
1968 "EM_EXLIMITTEXT",
1969 "EM_EXLINEFROMCHAR",
1970 "EM_EXSETSEL",
1971 "EM_FINDTEXT",
1972 "EM_FORMATRANGE",
1973 "EM_GETCHARFORMAT",
1974 "EM_GETEVENTMASK",
1975 "EM_GETOLEINTERFACE",
1976 "EM_GETPARAFORMAT",
1977 "EM_GETSELTEXT",
1978 "EM_HIDESELECTION",
1979 "EM_PASTESPECIAL",
1980 "EM_REQUESTRESIZE",
1981 "EM_SELECTIONTYPE",
1982 "EM_SETBKGNDCOLOR",
1983 "EM_SETCHARFORMAT",
1984 "EM_SETEVENTMASK",
1985 "EM_SETOLECALLBACK",
1986 "EM_SETPARAFORMAT",
1987 "EM_SETTARGETDEVICE",
1988 "EM_STREAMIN",
1989 "EM_STREAMOUT",
1990 "EM_GETTEXTRANGE",
1991 "EM_FINDWORDBREAK",
1992 "EM_SETOPTIONS",
1993 "EM_GETOPTIONS",
1994 "EM_FINDTEXTEX",
1995 "EM_GETWORDBREAKPROCEX",
1996 "EM_SETWORDBREAKPROCEX",
1997 "EM_SETUNDOLIMIT",
1998 "EM_UNKNOWN_USER_83",
1999 "EM_REDO",
2000 "EM_CANREDO",
2001 "EM_GETUNDONAME",
2002 "EM_GETREDONAME",
2003 "EM_STOPGROUPTYPING",
2004 "EM_SETTEXTMODE",
2005 "EM_GETTEXTMODE",
2006 "EM_AUTOURLDETECT",
2007 "EM_GETAUTOURLDETECT",
2008 "EM_SETPALETTE",
2009 "EM_GETTEXTEX",
2010 "EM_GETTEXTLENGTHEX",
2011 "EM_SHOWSCROLLBAR",
2012 "EM_SETTEXTEX",
2013 "EM_UNKNOWN_USER_98",
2014 "EM_UNKNOWN_USER_99",
2015 "EM_SETPUNCTUATION",
2016 "EM_GETPUNCTUATION",
2017 "EM_SETWORDWRAPMODE",
2018 "EM_GETWORDWRAPMODE",
2019 "EM_SETIMECOLOR",
2020 "EM_GETIMECOLOR",
2021 "EM_SETIMEOPTIONS",
2022 "EM_GETIMEOPTIONS",
2023 "EM_CONVPOSITION",
2024 "EM_UNKNOWN_USER_109",
2025 "EM_UNKNOWN_USER_110",
2026 "EM_UNKNOWN_USER_111",
2027 "EM_UNKNOWN_USER_112",
2028 "EM_UNKNOWN_USER_113",
2029 "EM_UNKNOWN_USER_114",
2030 "EM_UNKNOWN_USER_115",
2031 "EM_UNKNOWN_USER_116",
2032 "EM_UNKNOWN_USER_117",
2033 "EM_UNKNOWN_USER_118",
2034 "EM_UNKNOWN_USER_119",
2035 "EM_SETLANGOPTIONS",
2036 "EM_GETLANGOPTIONS",
2037 "EM_GETIMECOMPMODE",
2038 "EM_FINDTEXTW",
2039 "EM_FINDTEXTEXW",
2040 "EM_RECONVERSION",
2041 "EM_SETIMEMODEBIAS",
2042 "EM_GETIMEMODEBIAS"
2043 };
2044
2045 static const char *
2046 get_msg_name(UINT msg)
2047 {
2048 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2049 return edit_messages[msg - EM_GETSEL];
2050 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2051 return richedit_messages[msg - EM_CANPASTE];
2052 return "";
2053 }
2054
2055 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2056 LPARAM lParam, BOOL unicode)
2057 {
2058 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2059
2060 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2061 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2062
2063 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
2064 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2065 return 0;
2066 }
2067
2068 switch(msg) {
2069
2070 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2071 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2072 UNSUPPORTED_MSG(EM_FMTLINES)
2073 UNSUPPORTED_MSG(EM_FORMATRANGE)
2074 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2075 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2076 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2077 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
2078 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2079 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2080 UNSUPPORTED_MSG(EM_GETREDONAME)
2081 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2082 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2083 UNSUPPORTED_MSG(EM_GETUNDONAME)
2084 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2085 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2086 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2087 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2088 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2089 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2090 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2091 UNSUPPORTED_MSG(EM_SETPALETTE)
2092 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2093 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2094 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2095 UNSUPPORTED_MSG(WM_STYLECHANGING)
2096 UNSUPPORTED_MSG(WM_STYLECHANGED)
2097 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
2098
2099 /* Messages specific to Richedit controls */
2100
2101 case EM_STREAMIN:
2102 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2103 case EM_STREAMOUT:
2104 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2105 case WM_GETDLGCODE:
2106 {
2107 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2108 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2109 {
2110 int vk = (int)((LPMSG)lParam)->wParam;
2111 /* if style says we want return key */
2112 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2113 {
2114 code |= DLGC_WANTMESSAGE;
2115 }
2116 /* we always handle ctrl-tab */
2117 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2118 {
2119 code |= DLGC_WANTMESSAGE;
2120 }
2121 }
2122 return code;
2123 }
2124 case WM_NCCREATE:
2125 {
2126 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2127 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2128 editor = ME_MakeEditor(hWnd);
2129 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2130 return TRUE;
2131 }
2132 case EM_EMPTYUNDOBUFFER:
2133 ME_EmptyUndoStack(editor);
2134 return 0;
2135 case EM_GETSEL:
2136 {
2137 /* Note: wParam/lParam can be NULL */
2138 UINT from, to;
2139 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2140 PUINT pto = lParam ? (PUINT)lParam : &to;
2141 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2142 if ((*pfrom|*pto) & 0xFFFF0000)
2143 return -1;
2144 return MAKELONG(*pfrom,*pto);
2145 }
2146 case EM_EXGETSEL:
2147 {
2148 CHARRANGE *pRange = (CHARRANGE *)lParam;
2149 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2150 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2151 return 0;
2152 }
2153 case EM_SETUNDOLIMIT:
2154 {
2155 if ((int)wParam < 0)
2156 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2157 else
2158 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2159 /* Setting a max stack size keeps wine from getting killed
2160 for hogging memory. Windows allocates all this memory at once, so
2161 no program would realistically set a value above our maximum. */
2162 return editor->nUndoLimit;
2163 }
2164 case EM_CANUNDO:
2165 return editor->pUndoStack != NULL;
2166 case EM_CANREDO:
2167 return editor->pRedoStack != NULL;
2168 case WM_UNDO: /* FIXME: actually not the same */
2169 case EM_UNDO:
2170 return ME_Undo(editor);
2171 case EM_REDO:
2172 return ME_Redo(editor);
2173 case EM_GETOPTIONS:
2174 {
2175 /* these flags are equivalent to the ES_* counterparts */
2176 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2177 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2178 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2179
2180 return settings;
2181 }
2182 case EM_SETOPTIONS:
2183 {
2184 /* these flags are equivalent to ES_* counterparts
2185 * ECO_READONLY is already implemented in the code, only requires
2186 * setting the bit to work
2187 */
2188 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2189 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2190 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2191 DWORD settings = mask & raw;
2192
2193 switch(wParam)
2194 {
2195 case ECOOP_SET:
2196 settings = lParam;
2197 break;
2198 case ECOOP_OR:
2199 settings |= lParam;
2200 break;
2201 case ECOOP_AND:
2202 settings &= lParam;
2203 break;
2204 case ECOOP_XOR:
2205 settings ^= lParam;
2206 }
2207 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2208
2209 if (settings & ECO_AUTOWORDSELECTION)
2210 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2211 if (settings & ECO_SELECTIONBAR)
2212 editor->selofs = SELECTIONBAR_WIDTH;
2213 else
2214 editor->selofs = 0;
2215 ME_WrapMarkedParagraphs(editor);
2216
2217 if (settings & ECO_VERTICAL)
2218 FIXME("ECO_VERTICAL not implemented yet!\n");
2219 if (settings & ECO_AUTOHSCROLL)
2220 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2221 if (settings & ECO_AUTOVSCROLL)
2222 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2223 if (settings & ECO_NOHIDESEL)
2224 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2225 if (settings & ECO_WANTRETURN)
2226 FIXME("ECO_WANTRETURN not implemented yet!\n");
2227
2228 return settings;
2229 }
2230 case EM_SETSEL:
2231 {
2232 ME_InvalidateSelection(editor);
2233 ME_SetSelection(editor, wParam, lParam);
2234 ME_InvalidateSelection(editor);
2235 HideCaret(editor->hWnd);
2236 ME_ShowCaret(editor);
2237 ME_SendSelChange(editor);
2238 return 0;
2239 }
2240 case EM_SETSCROLLPOS:
2241 {
2242 POINT *point = (POINT *)lParam;
2243 ME_ScrollAbs(editor, point->y);
2244 return 0;
2245 }
2246 case EM_AUTOURLDETECT:
2247 {
2248 if (wParam==1 || wParam ==0)
2249 {
2250 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2251 return 0;
2252 }
2253 return E_INVALIDARG;
2254 }
2255 case EM_GETAUTOURLDETECT:
2256 {
2257 return editor->AutoURLDetect_bEnable;
2258 }
2259 case EM_EXSETSEL:
2260 {
2261 int end;
2262 CHARRANGE range = *(CHARRANGE *)lParam;
2263
2264 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2265
2266 ME_InvalidateSelection(editor);
2267 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2268 ME_InvalidateSelection(editor);
2269 HideCaret(editor->hWnd);
2270 ME_ShowCaret(editor);
2271 ME_SendSelChange(editor);
2272
2273 return end;
2274 }
2275 case EM_SHOWSCROLLBAR:
2276 {
2277 ShowScrollBar(editor->hWnd, wParam, lParam);
2278 return 0;
2279 }
2280 case EM_SETTEXTEX:
2281 {
2282 LPWSTR wszText;
2283 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2284 size_t len;
2285 int from, to;
2286 ME_Style *style;
2287 int oldModify = editor->nModifyStep;
2288
2289 if (!pStruct) return 0;
2290
2291 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2292 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2293 pStruct->flags, pStruct->codepage);
2294
2295 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2296 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2297 len = wszText ? lstrlenW(wszText) : 0;
2298
2299 if (pStruct->flags & ST_SELECTION) {
2300 ME_GetSelection(editor, &from, &to);
2301 style = ME_GetSelectionInsertStyle(editor);
2302 ME_InternalDeleteText(editor, from, to - from);
2303 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2304 ME_StreamInRTFString(editor, 0, (char *)lParam);
2305 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2306 ME_ReleaseStyle(style);
2307
2308 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2309 }
2310 else {
2311 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2312 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2313 ME_StreamInRTFString(editor, 0, (char *)lParam);
2314 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2315 len = 1;
2316
2317 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2318 }
2319 ME_CommitUndo(editor);
2320 if (!(pStruct->flags & ST_KEEPUNDO))
2321 {
2322 editor->nModifyStep = oldModify;
2323 ME_EmptyUndoStack(editor);
2324 }
2325 ME_UpdateRepaint(editor);
2326 return len;
2327 }
2328 case EM_SETBKGNDCOLOR:
2329 {
2330 LRESULT lColor;
2331 if (editor->rgbBackColor != -1) {
2332 DeleteObject(editor->hbrBackground);
2333 lColor = editor->rgbBackColor;
2334 }
2335 else lColor = GetSysColor(COLOR_WINDOW);
2336
2337 if (wParam)
2338 {
2339 editor->rgbBackColor = -1;
2340 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2341 }
2342 else
2343 {
2344 editor->rgbBackColor = lParam;
2345 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2346 }
2347 if (editor->bRedraw)
2348 {
2349 InvalidateRect(hWnd, NULL, TRUE);
2350 UpdateWindow(hWnd);
2351 }
2352 return lColor;
2353 }
2354 case EM_GETMODIFY:
2355 return editor->nModifyStep == 0 ? 0 : -1;
2356 case EM_SETMODIFY:
2357 {
2358 if (wParam)
2359 editor->nModifyStep = 1;
2360 else
2361 editor->nModifyStep = 0;
2362
2363 return 0;
2364 }
2365 case EM_SETREADONLY:
2366 {
2367 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2368 if (wParam)
2369 nStyle |= ES_READONLY;
2370 else
2371 nStyle &= ~ES_READONLY;
2372 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2373 return 0;
2374 }
2375 case EM_SETEVENTMASK:
2376 {
2377 DWORD nOldMask = editor->nEventMask;
2378
2379 editor->nEventMask = lParam;
2380 return nOldMask;
2381 }
2382 case EM_GETEVENTMASK:
2383 return editor->nEventMask;
2384 case EM_SETCHARFORMAT:
2385 {
2386 CHARFORMAT2W buf, *p;
2387 BOOL bRepaint = TRUE;
2388 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2389 if (p == NULL) return 0;
2390 if (!wParam)
2391 ME_SetDefaultCharFormat(editor, p);
2392 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2393 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2394 return 0;
2395 } else if (wParam == SCF_ALL) {
2396 if (editor->mode & TM_PLAINTEXT)
2397 ME_SetDefaultCharFormat(editor, p);
2398 else {
2399 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2400 editor->nModifyStep = 1;
2401 }
2402 } else if (editor->mode & TM_PLAINTEXT) {
2403 return 0;
2404 } else {
2405 int from, to;
2406 ME_GetSelection(editor, &from, &to);
2407 bRepaint = (from != to);
2408 ME_SetSelectionCharFormat(editor, p);
2409 if (from != to) editor->nModifyStep = 1;
2410 }
2411 ME_CommitUndo(editor);
2412 if (bRepaint)
2413 ME_RewrapRepaint(editor);
2414 return 1;
2415 }
2416 case EM_GETCHARFORMAT:
2417 {
2418 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2419 if (dst->cbSize != sizeof(CHARFORMATA) &&
2420 dst->cbSize != sizeof(CHARFORMATW) &&
2421 dst->cbSize != sizeof(CHARFORMAT2A) &&
2422 dst->cbSize != sizeof(CHARFORMAT2W))
2423 return 0;
2424 tmp.cbSize = sizeof(tmp);
2425 if (!wParam)
2426 ME_GetDefaultCharFormat(editor, &tmp);
2427 else
2428 ME_GetSelectionCharFormat(editor, &tmp);
2429 ME_CopyToCFAny(dst, &tmp);
2430 return tmp.dwMask;
2431 }
2432 case EM_SETPARAFORMAT:
2433 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2434 ME_RewrapRepaint(editor);
2435 ME_CommitUndo(editor);
2436 return 0;
2437 case EM_GETPARAFORMAT:
2438 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2439 return 0;
2440 case EM_GETFIRSTVISIBLELINE:
2441 {
2442 ME_DisplayItem *p = editor->pBuffer->pFirst;
2443 int y = ME_GetYScrollPos(editor);
2444 int ypara = 0;
2445 int count = 0;
2446 int ystart, yend;
2447 while(p) {
2448 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
2449 if (p->type == diTextEnd)
2450 break;
2451 if (p->type == diParagraph) {
2452 ypara = p->member.para.nYPos;
2453 continue;
2454 }
2455 ystart = ypara + p->member.row.nYPos;
2456 yend = ystart + p->member.row.nHeight;
2457 if (y < yend) {
2458 break;
2459 }
2460 count++;
2461 }
2462 return count;
2463 }
2464 case EM_HIDESELECTION:
2465 {
2466 editor->bHideSelection = (wParam != 0);
2467 ME_InvalidateSelection(editor);
2468 return 0;
2469 }
2470 case EM_LINESCROLL:
2471 {
2472 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
2473 return TRUE; /* Should return false if a single line richedit control */
2474 }
2475 case WM_CLEAR:
2476 {
2477 int from, to;
2478 ME_GetSelection(editor, &from, &to);
2479 ME_InternalDeleteText(editor, from, to-from);
2480 ME_CommitUndo(editor);
2481 ME_UpdateRepaint(editor);
2482 return 0;
2483 }
2484 case EM_REPLACESEL:
2485 {
2486 int from, to;
2487 ME_Style *style;
2488 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
2489 size_t len = wszText ? lstrlenW(wszText) : 0;
2490 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
2491
2492 ME_GetSelection(editor, &from, &to);
2493 style = ME_GetSelectionInsertStyle(editor);
2494 ME_InternalDeleteText(editor, from, to-from);
2495 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2496 ME_ReleaseStyle(style);
2497 /* drop temporary style if line end */
2498 /*
2499 * FIXME question: does abc\n mean: put abc,
2500 * clear temp style, put \n? (would require a change)
2501 */
2502 if (len>0 && wszText[len-1] == '\n')
2503 ME_ClearTempStyle(editor);
2504 ME_EndToUnicode(unicode, wszText);
2505 ME_CommitUndo(editor);
2506 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2507 if (!wParam)
2508 ME_EmptyUndoStack(editor);
2509 ME_UpdateRepaint(editor);
2510 return len;
2511 }
2512 case EM_SCROLLCARET:
2513 {
2514 int top, bottom; /* row's edges relative to document top */
2515 int nPos;
2516 ME_DisplayItem *para, *row;
2517
2518 nPos = ME_GetYScrollPos(editor);
2519 row = ME_RowStart(editor->pCursors[0].pRun);
2520 para = ME_GetParagraph(row);
2521 top = para->member.para.nYPos + row->member.row.nYPos;
2522 bottom = top + row->member.row.nHeight;
2523
2524 if (top < nPos) /* caret above window */
2525 ME_ScrollAbs(editor, top);
2526 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
2527 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
2528 return 0;
2529 }
2530 case WM_SETFONT:
2531 {
2532 LOGFONTW lf;
2533 CHARFORMAT2W fmt;
2534 HDC hDC;
2535 BOOL bRepaint = LOWORD(lParam);
2536
2537 if (!wParam)
2538 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
2539 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
2540 hDC = GetDC(hWnd);
2541 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
2542 ReleaseDC(hWnd, hDC);
2543 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
2544 ME_SetDefaultCharFormat(editor, &fmt);
2545
2546 ME_CommitUndo(editor);
2547 if (bRepaint)
2548 ME_RewrapRepaint(editor);
2549 return 0;
2550 }
2551 case WM_SETTEXT:
2552 {
2553 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2554 if (lParam)
2555 {
2556 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
2557 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
2558 {
2559 /* Undocumented: WM_SETTEXT supports RTF text */
2560 ME_StreamInRTFString(editor, 0, (char *)lParam);
2561 }
2562 else
2563 {
2564 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
2565 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
2566 if (lstrlenW(wszText) > 0)
2567 {
2568 int len = -1;
2569
2570 /* uses default style! */
2571 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2572 {
2573 WCHAR * p;
2574
2575 p = wszText;
2576 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
2577 len = p - wszText;
2578 }
2579 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2580 }
2581 ME_EndToUnicode(unicode, wszText);
2582 }
2583 }
2584 else
2585 TRACE("WM_SETTEXT - NULL\n");
2586 if (editor->AutoURLDetect_bEnable)
2587 {
2588 ME_UpdateLinkAttribute(editor, 0, -1);
2589 }
2590 ME_SetSelection(editor, 0, 0);
2591 editor->nModifyStep = 0;
2592 ME_CommitUndo(editor);
2593 ME_EmptyUndoStack(editor);
2594 ME_UpdateRepaint(editor);
2595 return 1;
2596 }
2597 case EM_CANPASTE:
2598 {
2599 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2600 if (IsClipboardFormatAvailable(nRTFFormat))
2601 return TRUE;
2602 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2603 return TRUE;
2604 return FALSE;
2605 }
2606 case WM_PASTE:
2607 {
2608 DWORD dwFormat = 0;
2609 EDITSTREAM es;
2610 ME_GlobalDestStruct gds;
2611 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2612 UINT cf = 0;
2613
2614 if (IsClipboardFormatAvailable(nRTFFormat))
2615 cf = nRTFFormat, dwFormat = SF_RTF;
2616 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2617 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2618 else
2619 return 0;
2620
2621 if (!OpenClipboard(hWnd))
2622 return 0;
2623 gds.hData = GetClipboardData(cf);
2624 gds.nLength = 0;
2625 es.dwCookie = (DWORD)&gds;
2626 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2627 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2628
2629 CloseClipboard();
2630 return 0;
2631 }
2632 case WM_CUT:
2633 case WM_COPY:
2634 {
2635 LPDATAOBJECT dataObj = NULL;
2636 CHARRANGE range;
2637 HRESULT hr = S_OK;
2638
2639 if (editor->cPasswordMask)
2640 return 0; /* Copying or Cutting masked text isn't allowed */
2641
2642 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2643 if(editor->lpOleCallback)
2644 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2645 if(FAILED(hr) || !dataObj)
2646 hr = ME_GetDataObject(editor, &range, &dataObj);
2647 if(SUCCEEDED(hr)) {
2648 hr = OleSetClipboard(dataObj);
2649 IDataObject_Release(dataObj);
2650 }
2651 if (SUCCEEDED(hr) && msg == WM_CUT)
2652 {
2653 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
2654 ME_CommitUndo(editor);
2655 ME_UpdateRepaint(editor);
2656 }
2657 return 0;
2658 }
2659 case WM_GETTEXTLENGTH:
2660 {
2661 GETTEXTLENGTHEX how;
2662
2663 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
2664 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
2665 how.codepage = unicode ? 1200 : CP_ACP;
2666 return ME_GetTextLengthEx(editor, &how);
2667 }
2668 case EM_GETTEXTLENGTHEX:
2669 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2670 case WM_GETTEXT:
2671 {
2672 GETTEXTEX ex;
2673 LRESULT rc;
2674 LPSTR bufferA = NULL;
2675 LPWSTR bufferW = NULL;
2676
2677 if (unicode)
2678 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
2679 else
2680 bufferA = heap_alloc(wParam + 2);
2681
2682 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
2683 ex.flags = GT_USECRLF;
2684 ex.codepage = unicode ? 1200 : CP_ACP;
2685 ex.lpDefaultChar = NULL;
2686 ex.lpUsedDefChar = NULL;
2687 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2688
2689 if (unicode)
2690 {
2691 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
2692 if (lstrlenW(bufferW) >= wParam) rc = 0;
2693 }
2694 else
2695 {
2696 memcpy((LPSTR)lParam, bufferA, wParam);
2697 if (strlen(bufferA) >= wParam) rc = 0;
2698 }
2699 heap_free(bufferA);
2700 heap_free(bufferW);
2701 return rc;
2702 }
2703 case EM_GETTEXTEX:
2704 {
2705 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2706 int nStart, nCount; /* in chars */
2707
2708 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2709 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2710
2711 if (ex->flags & GT_SELECTION)
2712 {
2713 ME_GetSelection(editor, &nStart, &nCount);
2714 nCount -= nStart;
2715 }
2716 else
2717 {
2718 nStart = 0;
2719 nCount = 0x7fffffff;
2720 }
2721 if (ex->codepage == 1200)
2722 {
2723 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2724 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2725 }
2726 else
2727 {
2728 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2729 we can just take a bigger buffer? :)
2730 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
2731 occurs only in richedit 2.0 mode, in which line breaks have only one CR
2732 */
2733 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2734 LPWSTR buffer;
2735 DWORD buflen = ex->cb;
2736 LRESULT rc;
2737 DWORD flags = 0;
2738
2739 nCount = min(nCount, ex->cb - 1);
2740 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2741
2742 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2743 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
2744 if (rc) rc--; /* do not count 0 terminator */
2745
2746 heap_free(buffer);
2747 return rc;
2748 }
2749 }
2750 case EM_GETSELTEXT:
2751 {
2752 int from, to;
2753 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2754 ME_GetSelection(editor, &from, &to);
2755 tr.chrg.cpMin = from;
2756 tr.chrg.cpMax = to;
2757 tr.lpstrText = (WCHAR *)lParam;
2758 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2759 }
2760 case EM_GETSCROLLPOS:
2761 {
2762 POINT *point = (POINT *)lParam;
2763 point->x = 0; /* FIXME side scrolling not implemented */
2764 point->y = ME_GetYScrollPos(editor);
2765 return 1;
2766 }
2767 case EM_GETTEXTRANGE:
2768 {
2769 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2770 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2771 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2772 editor->bEmulateVersion10, ME_GetTextLength(editor));
2773 if (unicode)
2774 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
2775 else
2776 {
2777 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2778 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2779 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
2780 /* FIXME this is a potential security hole (buffer overrun)
2781 if you know more about wchar->mbyte conversion please explain
2782 */
2783 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2784 FREE_OBJ(p);
2785 return nChars;
2786 }
2787 }
2788 case EM_GETLINE:
2789 {
2790 ME_DisplayItem *run;
2791 const unsigned int nMaxChars = *(WORD *) lParam;
2792 unsigned int nCharsLeft = nMaxChars;
2793 char *dest = (char *) lParam;
2794 BOOL wroteNull = FALSE;
2795
2796 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2797 unicode ? "Unicode" : "Ansi");
2798
2799 run = ME_FindRowWithNumber(editor, wParam);
2800 if (run == NULL)
2801 return 0;
2802
2803 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2804 && !(run->member.run.nFlags & MERF_ENDPARA))
2805 {
2806 unsigned int nCopy;
2807 ME_String *strText;
2808 if (run->type != diRun)
2809 break;
2810 strText = run->member.run.strText;
2811 nCopy = min(nCharsLeft, strText->nLen);
2812
2813 if (unicode)
2814 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2815 else
2816 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2817 nCharsLeft, NULL, NULL);
2818 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2819 nCharsLeft -= nCopy;
2820 }
2821
2822 /* append line termination, space allowing */
2823 if (nCharsLeft > 0)
2824 {
2825 if (run && (run->member.run.nFlags & MERF_ENDPARA))
2826 {
2827 unsigned int i;
2828 /* Write as many \r as encoded in end-of-paragraph, space allowing */
2829 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
2830 {
2831 *((WCHAR *)dest) = '\r';
2832 dest += unicode ? sizeof(WCHAR) : 1;
2833 }
2834 /* Write as many \n as encoded in end-of-paragraph, space allowing */
2835 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
2836 {
2837 *((WCHAR *)dest) = '\n';
2838 dest += unicode ? sizeof(WCHAR) : 1;
2839 }
2840 }
2841 if (nCharsLeft > 0)
2842 {
2843 if (unicode)
2844 *((WCHAR *)dest) = '\0';
2845 else
2846 *dest = '\0';
2847 nCharsLeft--;
2848 wroteNull = TRUE;
2849 }
2850 }
2851
2852 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
2853 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
2854 }
2855 case EM_GETLINECOUNT:
2856 {
2857 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2858 int nRows = 0;
2859
2860 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
2861
2862 while (item != editor->pBuffer->pLast)
2863 {
2864 assert(item->type == diParagraph);
2865 prev_para = ME_FindItemBack(item, diRun);
2866 if (prev_para) {
2867 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
2868 }
2869 nRows += item->member.para.nRows;
2870 item = item->member.para.next_para;
2871 }
2872 last_para = ME_FindItemBack(item, diRun);
2873 assert(last_para);
2874 assert(last_para->member.run.nFlags & MERF_ENDPARA);
2875 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
2876 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
2877 {
2878 /* In 1.0 emulation, the last solitary \r at the very end of the text
2879 (if one exists) is NOT a line break.
2880 FIXME: this is an ugly hack. This should have a more regular model. */
2881 nRows--;
2882 }
2883
2884 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2885 return max(1, nRows);
2886 }
2887 case EM_LINEFROMCHAR:
2888 {
2889 if (wParam == -1)
2890 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2891 else
2892 return ME_RowNumberFromCharOfs(editor, wParam);
2893 }
2894 case EM_EXLINEFROMCHAR:
2895 {
2896 if (lParam == -1)
2897 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2898 else
2899 return ME_RowNumberFromCharOfs(editor, lParam);
2900 }
2901 case EM_LINEINDEX:
2902 {
2903 ME_DisplayItem *item, *para;
2904 int nCharOfs;
2905
2906 if (wParam == -1)
2907 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2908 else
2909 item = ME_FindRowWithNumber(editor, wParam);
2910 if (!item)
2911 return -1;
2912 para = ME_GetParagraph(item);
2913 item = ME_FindItemFwd(item, diRun);
2914 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2915 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2916 return nCharOfs;
2917 }
2918 case EM_LINELENGTH:
2919 {
2920 ME_DisplayItem *item, *item_end;
2921 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2922
2923 if (wParam > ME_GetTextLength(editor))
2924 return 0;
2925 if (wParam == -1)
2926 {
2927 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2928 return 0;
2929 }
2930 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2931 item = ME_RowStart(item);
2932 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2933 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2934 if (item_end->type == diStartRow)
2935 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2936 else
2937 {
2938 ME_DisplayItem *endPara;
2939
2940 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
2941 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
2942 endPara = ME_FindItemBack(endPara, diRun);
2943 assert(endPara);
2944 assert(endPara->type == diRun);
2945 assert(endPara->member.run.nFlags & MERF_ENDPARA);
2946 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
2947 }
2948 nChars = nNextLineOfs - nThisLineOfs;
2949 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2950 return nChars;
2951 }
2952 case EM_EXLIMITTEXT:
2953 {
2954 if ((int)lParam < 0)
2955 return 0;
2956 if (lParam == 0)
2957 editor->nTextLimit = 65536;
2958 else
2959 editor->nTextLimit = (int) lParam;
2960 return 0;
2961 }
2962 case EM_LIMITTEXT:
2963 {
2964 if (wParam == 0)
2965 editor->nTextLimit = 65536;
2966 else
2967 editor->nTextLimit = (int) wParam;
2968 return 0;
2969 }
2970 case EM_GETLIMITTEXT:
2971 {
2972 return editor->nTextLimit;
2973 }
2974 case EM_FINDTEXT:
2975 {
2976 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2977 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2978 WCHAR *tmp;
2979 LRESULT r;
2980
2981 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2982 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2983 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2984 FREE_OBJ( tmp );
2985 return r;
2986 }
2987 case EM_FINDTEXTEX:
2988 {
2989 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2990 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2991 WCHAR *tmp;
2992 LRESULT r;
2993
2994 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2995 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
2996 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
2997 FREE_OBJ( tmp );
2998 return r;
2999 }
3000 case EM_FINDTEXTW:
3001 {
3002 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3003 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3004 }
3005 case EM_FINDTEXTEXW:
3006 {
3007 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3008 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3009 }
3010 case EM_GETZOOM:
3011 if (!wParam || !lParam)
3012 return FALSE;
3013 *(int *)wParam = editor->nZoomNumerator;
3014 *(int *)lParam = editor->nZoomDenominator;
3015 return TRUE;
3016 case EM_SETZOOM:
3017 return ME_SetZoom(editor, wParam, lParam);
3018 case EM_CHARFROMPOS:
3019 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3020 case EM_POSFROMCHAR:
3021 {
3022 ME_DisplayItem *pRun;
3023 int nCharOfs, nOffset, nLength;
3024 POINTL pt = {0,0};
3025 SCROLLINFO si;
3026
3027 nCharOfs = wParam;
3028 /* detect which API version we're dealing with */
3029 if (wParam >= 0x40000)
3030 nCharOfs = lParam;
3031 nLength = ME_GetTextLength(editor);
3032
3033 if (nCharOfs < nLength) {
3034 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
3035 assert(pRun->type == diRun);
3036 pt.y = pRun->member.run.pt.y;
3037 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3038 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
3039 } else {
3040 pt.x = 0;
3041 pt.y = editor->pBuffer->pLast->member.para.nYPos;
3042 }
3043 pt.x += editor->selofs;
3044
3045 si.cbSize = sizeof(si);
3046 si.fMask = SIF_POS;
3047 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
3048 si.cbSize = sizeof(si);
3049 si.fMask = SIF_POS;
3050 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3051
3052 if (wParam >= 0x40000) {
3053 *(POINTL *)wParam = pt;
3054 }
3055 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3056 }
3057 case WM_CREATE:
3058 GetClientRect(hWnd, &editor->rcFormat);
3059 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
3060 { /* Squelch the default horizontal scrollbar it would make */
3061 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3062 }
3063 ME_CommitUndo(editor);
3064 ME_WrapMarkedParagraphs(editor);
3065 ME_MoveCaret(editor);
3066 return 0;
3067 case WM_DESTROY:
3068 ME_DestroyEditor(editor);
3069 SetWindowLongPtrW(hWnd, 0, 0);
3070 return 0;
3071 case WM_SETCURSOR:
3072 {
3073 return ME_SetCursor(editor);
3074 }
3075 case WM_LBUTTONDBLCLK:
3076 case WM_LBUTTONDOWN:
3077 {
3078 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3079 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3080 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3081 return 0;
3082 SetFocus(hWnd);
3083 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3084 ME_CalculateClickCount(hWnd, msg, wParam, lParam));
3085 SetCapture(hWnd);
3086 ME_LinkNotify(editor,msg,wParam,lParam);
3087 if (!ME_SetCursor(editor)) goto do_default;
3088 break;
3089 }
3090 case WM_MOUSEMOVE:
3091 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3092 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3093 return 0;
3094 if (GetCapture() == hWnd)
3095 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3096 ME_LinkNotify(editor,msg,wParam,lParam);
3097 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3098 if (GetCapture() == hWnd)
3099 ME_SetCursor(editor);
3100 break;
3101 case WM_LBUTTONUP:
3102 if (GetCapture() == hWnd)
3103 ReleaseCapture();
3104 if (editor->nSelectionType == stDocument)
3105 editor->nSelectionType = stPosition;
3106 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3107 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3108 return 0;
3109 else
3110 {
3111 ME_SetCursor(editor);
3112 ME_LinkNotify(editor,msg,wParam,lParam);
3113 }
3114 break;
3115 case WM_RBUTTONUP:
3116 case WM_RBUTTONDOWN:
3117 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3118 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3119 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3120 return 0;
3121 goto do_default;
3122 case WM_CONTEXTMENU:
3123 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3124 goto do_default;
3125 break;
3126 case WM_PAINT:
3127 if (editor->bRedraw)
3128 {
3129 HDC hDC;
3130 PAINTSTRUCT ps;
3131
3132 hDC = BeginPaint(hWnd, &ps);
3133 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3134 EndPaint(hWnd, &ps);
3135 }
3136 break;
3137 case WM_SETFOCUS:
3138 editor->bHaveFocus = TRUE;
3139 ME_ShowCaret(editor);
3140 ME_SendOldNotify(editor, EN_SETFOCUS);
3141 return 0;
3142 case WM_KILLFOCUS:
3143 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3144 editor->bHaveFocus = FALSE;
3145 ME_HideCaret(editor);
3146 ME_SendOldNotify(editor, EN_KILLFOCUS);
3147 return 0;
3148 case WM_ERASEBKGND:
3149 {
3150 if (editor->bRedraw)
3151 {
3152 HDC hDC = (HDC)wParam;
3153 RECT rc;
3154 if (GetUpdateRect(hWnd,&rc,TRUE))
3155 {
3156 FillRect(hDC, &rc, editor->hbrBackground);
3157 }
3158 }
3159 return 1;
3160 }
3161 case WM_COMMAND:
3162 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3163 return 0;
3164 case WM_KEYUP:
3165 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3166 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3167 return 0;
3168 goto do_default;
3169 case WM_KEYDOWN:
3170 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3171 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3172 return 0;
3173 if (ME_KeyDown(editor, LOWORD(wParam)))
3174 return 0;
3175 goto do_default;
3176 case WM_CHAR:
3177 {
3178 WCHAR wstr;
3179
3180 if (unicode)
3181 wstr = (WCHAR)wParam;
3182 else
3183 {
3184 CHAR charA = wParam;
3185 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3186 }
3187
3188 switch (wstr)
3189 {
3190 case 1: /* Ctrl-A */
3191 ME_SetSelection(editor, 0, -1);
3192 return 0;
3193 case 3: /* Ctrl-C */
3194 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
3195 return 0;
3196 }
3197
3198 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3199 MessageBeep(MB_ICONERROR);
3200 return 0; /* FIXME really 0 ? */
3201 }
3202
3203 switch (wstr)
3204 {
3205 case 22: /* Ctrl-V */
3206 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
3207 return 0;
3208 case 24: /* Ctrl-X */
3209 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
3210 return 0;
3211 case 25: /* Ctrl-Y */
3212 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
3213 return 0;
3214 case 26: /* Ctrl-Z */
3215 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
3216 return 0;
3217 }
3218 if (((unsigned)wstr)>=' '
3219 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3220 || wstr=='\t') {
3221 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3222 /* WM_CHAR is restricted to nTextLimit */
3223 int from, to;
3224 ME_GetSelection(editor, &from, &to);
3225 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3226 {
3227 ME_Style *style = ME_GetInsertStyle(editor, 0);
3228 ME_SaveTempStyle(editor);
3229 ME_ContinueCoalescingTransaction(editor);
3230 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3231 ME_InsertEndRowFromCursor(editor, 0);
3232 else
3233 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3234 ME_ReleaseStyle(style);
3235 ME_CommitCoalescingUndo(editor);
3236 SetCursor(NULL);
3237 }
3238
3239 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3240
3241 ME_UpdateRepaint(editor);
3242 }
3243 return 0;
3244 }
3245 case EM_STOPGROUPTYPING:
3246 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3247 return 0;
3248 case EM_SCROLL: /* fall through */
3249 case WM_VSCROLL:
3250 {
3251 int origNPos;
3252 int lineHeight;
3253
3254 origNPos = ME_GetYScrollPos(editor);
3255 lineHeight = 24;
3256
3257 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3258 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3259 if (lineHeight <= 0) lineHeight = 24;
3260
3261 switch(LOWORD(wParam))
3262 {
3263 case SB_LINEUP:
3264 ME_ScrollUp(editor,lineHeight);
3265 break;
3266 case SB_LINEDOWN:
3267 ME_ScrollDown(editor,lineHeight);
3268 break;
3269 case SB_PAGEUP:
3270 ME_ScrollUp(editor,editor->sizeWindow.cy);
3271 break;
3272 case SB_PAGEDOWN:
3273 ME_ScrollDown(editor,editor->sizeWindow.cy);
3274 break;
3275 case SB_THUMBTRACK:
3276 case SB_THUMBPOSITION:
3277 ME_ScrollAbs(editor,HIWORD(wParam));
3278 break;
3279 }
3280 if (msg == EM_SCROLL)
3281 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
3282 break;
3283 }
3284 case WM_MOUSEWHEEL:
3285 {
3286 int gcWheelDelta;
3287 UINT pulScrollLines;
3288
3289 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3290 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3291 return 0;
3292
3293 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
3294 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
3295
3296 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
3297 {
3298 /* FIXME follow the original */
3299 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
3300 }
3301 break;
3302 }
3303 case EM_GETRECT:
3304 {
3305 *((RECT *)lParam) = editor->rcFormat;
3306 return 0;
3307 }
3308 case EM_SETRECT:
3309 case EM_SETRECTNP:
3310 {
3311 if (lParam)
3312 {
3313 RECT *rc = (RECT *)lParam;
3314
3315 if (wParam)
3316 {
3317 editor->rcFormat.left += rc->left;
3318 editor->rcFormat.top += rc->top;
3319 editor->rcFormat.right += rc->right;
3320 editor->rcFormat.bottom += rc->bottom;
3321 }
3322 else
3323 {
3324 editor->rcFormat = *rc;
3325 }
3326 }
3327 else
3328 {
3329 GetClientRect(hWnd, &editor->rcFormat);
3330 }
3331 if (msg != EM_SETRECTNP)
3332 ME_RewrapRepaint(editor);
3333 return 0;
3334 }
3335 case EM_REQUESTRESIZE:
3336 ME_SendRequestResize(editor, TRUE);
3337 return 0;
3338 case WM_SETREDRAW:
3339 if ((editor->bRedraw = wParam))
3340 ME_RewrapRepaint(editor);
3341 return 0;
3342 case WM_SIZE:
3343 {
3344 GetClientRect(hWnd, &editor->rcFormat);
3345 ME_RewrapRepaint(editor);
3346 return DefWindowProcW(hWnd, msg, wParam, lParam);
3347 }
3348 /* IME messages to make richedit controls IME aware */
3349 case WM_IME_SETCONTEXT:
3350 case WM_IME_CONTROL:
3351 case WM_IME_SELECT:
3352 case WM_IME_COMPOSITIONFULL:
3353 return 0;
3354 case WM_IME_STARTCOMPOSITION:
3355 {
3356 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
3357 ME_DeleteSelection(editor);
3358 ME_CommitUndo(editor);
3359 ME_UpdateRepaint(editor);
3360 return 0;
3361 }
3362 case WM_IME_COMPOSITION:
3363 {
3364 HIMC hIMC;
3365
3366 ME_Style *style = ME_GetInsertStyle(editor, 0);
3367 hIMC = ImmGetContext(hWnd);
3368 ME_DeleteSelection(editor);
3369 ME_CommitUndo(editor);
3370 ME_SaveTempStyle(editor);
3371 if (lParam & GCS_RESULTSTR)
3372 {
3373 LPWSTR lpCompStr = NULL;
3374 DWORD dwBufLen;
3375
3376 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
3377 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3378 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
3379 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3380 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3381 }
3382 else if (lParam & GCS_COMPSTR)
3383 {
3384 LPWSTR lpCompStr = NULL;
3385 DWORD dwBufLen;
3386
3387 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
3388 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3389 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
3390 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3391
3392 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3393 ME_SetSelection(editor,editor->imeStartIndex,
3394 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
3395 }
3396 ME_ReleaseStyle(style);
3397 ME_UpdateRepaint(editor);
3398 return 0;
3399 }
3400 case WM_IME_ENDCOMPOSITION:
3401 {
3402 ME_DeleteSelection(editor);
3403 editor->imeStartIndex=-1;
3404 return 0;
3405 }
3406 case EM_GETOLEINTERFACE:
3407 {
3408 LPVOID *ppvObj = (LPVOID*) lParam;
3409 return CreateIRichEditOle(editor, ppvObj);
3410 }
3411 case EM_GETPASSWORDCHAR:
3412 {
3413 return editor->cPasswordMask;
3414 }
3415 case EM_SETOLECALLBACK:
3416 if(editor->lpOleCallback)
3417 IUnknown_Release(editor->lpOleCallback);
3418 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
3419 if(editor->lpOleCallback)
3420 IUnknown_AddRef(editor->lpOleCallback);
3421 return TRUE;
3422 case EM_GETWORDBREAKPROC:
3423 return (LRESULT)editor->pfnWordBreak;
3424 case EM_SETWORDBREAKPROC:
3425 {
3426 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
3427
3428 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
3429 return (LRESULT)pfnOld;
3430 }
3431 case EM_SETTEXTMODE:
3432 {
3433 LRESULT ret;
3434 int mask = 0;
3435 int changes = 0;
3436 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
3437 if (!ret)
3438 {
3439 /*Check for valid wParam*/
3440 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
3441 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
3442 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
3443 return 1;
3444 else
3445 {
3446 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
3447 {
3448 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
3449 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
3450 }
3451 /*FIXME: Currently no support for undo level and code page options*/
3452 editor->mode = (editor->mode & (~mask)) | changes;
3453 return 0;
3454 }
3455 }
3456 return ret;
3457 }
3458 case EM_SETPASSWORDCHAR:
3459 {
3460 editor->cPasswordMask = wParam;
3461 ME_RewrapRepaint(editor);
3462 return 0;
3463 }
3464 case EM_SETTARGETDEVICE:
3465 if (wParam == 0)
3466 {
3467 BOOL new = (lParam == 0);
3468 if (editor->bWordWrap != new)
3469 {
3470 editor->bWordWrap = new;
3471 ME_RewrapRepaint(editor);
3472 }
3473 }
3474 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
3475 break;
3476 default:
3477 do_default:
3478 return DefWindowProcW(hWnd, msg, wParam, lParam);
3479 }
3480 return 0L;
3481 }
3482
3483 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3484 {
3485 BOOL unicode = TRUE;
3486
3487 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
3488 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
3489 unicode = FALSE;
3490
3491 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
3492 }
3493
3494 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3495 {
3496 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
3497 }
3498
3499 /******************************************************************
3500 * RichEditANSIWndProc (RICHED20.10)
3501 */
3502 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3503 {
3504 return RichEditWndProcA(hWnd, msg, wParam, lParam);
3505 }
3506
3507 /******************************************************************
3508 * RichEdit10ANSIWndProc (RICHED20.9)
3509 */
3510 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3511 {
3512 LRESULT result;
3513
3514 /* FIXME: this is NOT the same as 2.0 version */
3515 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
3516 if (msg == WM_NCCREATE)
3517 {
3518 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
3519
3520 editor->bEmulateVersion10 = TRUE;
3521 editor->pBuffer->pLast->member.para.nCharOfs = 2;
3522 assert(editor->pBuffer->pLast->prev->type == diRun);
3523 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
3524 editor->pBuffer->pLast->prev->member.run.nLF = 1;
3525 }
3526 return result;
3527 }
3528
3529 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
3530 {
3531 HWND hWnd = editor->hWnd;
3532 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
3533 }
3534
3535 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
3536 {
3537 int x,y;
3538 ME_Cursor tmpCursor;
3539 BOOL isExact;
3540 int nCharOfs; /* The start of the clicked text. Absolute character offset */
3541
3542 ME_Run *tmpRun;
3543
3544 ENLINK info;
3545 x = (short)LOWORD(lParam);
3546 y = (short)HIWORD(lParam);
3547 nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
3548 if (!isExact) return;
3549
3550 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
3551 tmpRun = &tmpCursor.pRun->member.run;
3552
3553 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
3554 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
3555 { /* The clicked run has CFE_LINK set */
3556 info.nmhdr.hwndFrom = editor->hWnd;
3557 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
3558 info.nmhdr.code = EN_LINK;
3559 info.msg = msg;
3560 info.wParam = wParam;
3561 info.lParam = lParam;
3562 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
3563 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
3564 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
3565 }
3566 }
3567
3568 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
3569 {
3570 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
3571 int i = 0;
3572
3573 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
3574 item = item->member.para.next_para;
3575 if (!item)
3576 return 0;
3577 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
3578 item = item->member.para.next_para;
3579 i++;
3580 }
3581 return i;
3582 }
3583
3584
3585 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
3586 {
3587 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
3588 int nWritten = 0;
3589 WCHAR *pStart = buffer;
3590
3591 if (!item) {
3592 *buffer = 0;
3593 return 0;
3594 }
3595
3596 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
3597 if (editor->bEmulateVersion10) bCRLF = 0;
3598
3599 if (nStart)
3600 {
3601 int nLen = ME_StrLen(item->member.run.strText) - nStart;
3602 if (nLen > nChars)
3603 nLen = nChars;
3604 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
3605 nChars -= nLen;
3606 nWritten += nLen;
3607 buffer += nLen;
3608 if (!nChars) {
3609 *buffer = 0;
3610 return nWritten;
3611 }
3612 nStart = 0;
3613 item = ME_FindItemFwd(item, diRun);
3614 }
3615
3616 while(nChars && item)
3617 {
3618 int nLen = ME_StrLen(item->member.run.strText);
3619 if (item->member.run.nFlags & MERF_ENDPARA)
3620 nLen = item->member.run.nCR + item->member.run.nLF;
3621 if (nLen > nChars)
3622 nLen = nChars;
3623
3624 if (item->member.run.nFlags & MERF_ENDPARA)
3625 {
3626 if (!ME_FindItemFwd(item, diRun))
3627 /* No '\r' is appended to the last paragraph. */
3628 nLen = 0;
3629 else if (bCRLF && nChars == 1) {
3630 nLen = 0;
3631 nChars = 0;
3632 } else {
3633 if (bCRLF)
3634 {
3635 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
3636 assert(nLen == 1);
3637 *buffer++ = '\r';
3638 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
3639 nWritten++;
3640 }
3641 else
3642 {
3643 int i, j;
3644
3645 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
3646 i = 0;
3647 while (nChars - i > 0 && i < item->member.run.nCR)
3648 {
3649 buffer[i] = '\r'; i++;
3650 }
3651 j = 0;
3652 while (nChars - i - j > 0 && j < item->member.run.nLF)
3653 {
3654 buffer[i+j] = '\n'; j++;
3655 }
3656 }
3657 }
3658 }
3659 else
3660 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
3661 nChars -= nLen;
3662 nWritten += nLen;
3663 buffer += nLen;
3664
3665 if (!nChars)
3666 {
3667 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3668 *buffer = 0;
3669 return nWritten;
3670 }
3671 item = ME_FindItemFwd(item, diRun);
3672 }
3673 *buffer = 0;
3674 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3675 return nWritten;
3676 }
3677
3678 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
3679 {
3680 WNDCLASSW wcW;
3681 WNDCLASSA wcA;
3682
3683 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3684 wcW.lpfnWndProc = RichEditWndProcW;
3685 wcW.cbClsExtra = 0;
3686 wcW.cbWndExtra = sizeof(ME_TextEditor *);
3687 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
3688 wcW.hIcon = NULL;
3689 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3690 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3691 wcW.lpszMenuName = NULL;
3692
3693 if (is_version_nt())
3694 {
3695 wcW.lpszClassName = RichEdit20W;
3696 if (!RegisterClassW(&wcW)) return FALSE;
3697 wcW.lpszClassName = RichEdit50W;
3698 if (!RegisterClassW(&wcW)) return FALSE;
3699 }
3700 else
3701 {
3702 /* WNDCLASSA/W have the same layout */
3703 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
3704 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3705 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
3706 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3707 }
3708
3709 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3710 wcA.lpfnWndProc = RichEditWndProcA;
3711 wcA.cbClsExtra = 0;
3712 wcA.cbWndExtra = sizeof(ME_TextEditor *);
3713 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
3714 wcA.hIcon = NULL;
3715 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3716 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3717 wcA.lpszMenuName = NULL;
3718 wcA.lpszClassName = "RichEdit20A";
3719 if (!RegisterClassA(&wcA)) return FALSE;
3720 wcA.lpszClassName = "RichEdit50A";
3721 if (!RegisterClassA(&wcA)) return FALSE;
3722
3723 return TRUE;
3724 }
3725
3726 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3727 /* FIXME: Not implemented */
3728 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3729 hWnd, msg, get_msg_name(msg), wParam, lParam);
3730 return DefWindowProcW(hWnd, msg, wParam, lParam);
3731 }
3732
3733 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3734 /* FIXME: Not implemented */
3735 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3736 hWnd, msg, get_msg_name(msg), wParam, lParam);
3737 return DefWindowProcW(hWnd, msg, wParam, lParam);
3738 }
3739
3740 /******************************************************************
3741 * REExtendedRegisterClass (RICHED20.8)
3742 *
3743 * FIXME undocumented
3744 * Need to check for errors and implement controls and callbacks
3745 */
3746 LRESULT WINAPI REExtendedRegisterClass(void)
3747 {
3748 WNDCLASSW wcW;
3749 UINT result;
3750
3751 FIXME("semi stub\n");
3752
3753 wcW.cbClsExtra = 0;
3754 wcW.cbWndExtra = 4;
3755 wcW.hInstance = NULL;
3756 wcW.hIcon = NULL;
3757 wcW.hCursor = NULL;
3758 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
3759 wcW.lpszMenuName = NULL;
3760
3761 if (!ME_ListBoxRegistered)
3762 {
3763 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
3764 wcW.lpfnWndProc = REListWndProc;
3765 wcW.lpszClassName = REListBox20W;
3766 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
3767 }
3768
3769 if (!ME_ComboBoxRegistered)
3770 {
3771 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
3772 wcW.lpfnWndProc = REComboWndProc;
3773 wcW.lpszClassName = REComboBox20W;
3774 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
3775 }
3776
3777 result = 0;
3778 if (ME_ListBoxRegistered)
3779 result += 1;
3780 if (ME_ComboBoxRegistered)
3781 result += 2;
3782
3783 return result;
3784 }
3785
3786 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
3787 {
3788 struct prefix_s {
3789 const char *text;
3790 int length;
3791 } prefixes[12] = {
3792 {"http:", 5},
3793 {"file:", 6},
3794 {"mailto:", 8},
3795 {"ftp:", 5},
3796 {"https:", 7},
3797 {"gopher:", 8},
3798 {"nntp:", 6},
3799 {"prospero:", 10},
3800 {"telnet:", 8},
3801 {"news:", 6},
3802 {"wais:", 6},
3803 {"www.", 5}
3804 };
3805 CHARRANGE ins_pt;
3806 int curf_ef, link_ef, def_ef;
3807 int cur_prefx, prefx_cnt;
3808 int sel_min, sel_max;
3809 int car_pos = 0;
3810 int text_pos=-1;
3811 int URLmin, URLmax = 0;
3812 FINDTEXTA ft;
3813 CHARFORMAT2W cur_format;
3814 CHARFORMAT2W default_format;
3815 CHARFORMAT2W link;
3816 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3817 sel_min = ins_pt.cpMin;
3818 sel_max = ins_pt.cpMax;
3819 if (sel_min==sel_max)
3820 car_pos = sel_min;
3821 if (sel_min!=sel_max)
3822 car_pos = ME_GetTextLength(editor)+1;
3823 cur_format.cbSize = sizeof(cur_format);
3824 default_format.cbSize = sizeof(default_format);
3825 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3826 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3827 link.cbSize = sizeof(link);
3828 link.dwMask = CFM_LINK;
3829 link.dwEffects = CFE_LINK;
3830 curf_ef = cur_format.dwEffects & link.dwEffects;
3831 def_ef = default_format.dwEffects & link.dwEffects;
3832 link_ef = link.dwEffects & link.dwEffects;
3833 if (curf_ef == link_ef)
3834 {
3835 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3836 {
3837 ME_SetSelection(editor, car_pos, car_pos);
3838 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3839 text_pos=-1;
3840 return 0;
3841 }
3842 }
3843 if (curf_ef == def_ef)
3844 {
3845 cur_prefx = 0;
3846 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3847 while (cur_prefx<=prefx_cnt)
3848 {
3849 if (text_pos == -1)
3850 {
3851 ft.lpstrText = prefixes[cur_prefx].text;
3852 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3853 URLmax=max(0, car_pos);
3854 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3855 {
3856 URLmax = ME_GetTextLength(editor)+1;
3857 }
3858 ft.chrg.cpMin = URLmin;
3859 ft.chrg.cpMax = URLmax;
3860 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3861 cur_prefx++;
3862 }
3863 if (text_pos != -1)
3864 {
3865 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3866 ME_RewrapRepaint(editor);
3867 break;
3868 }
3869 }
3870 }
3871 return 0;
3872 }
3873
3874
3875 static BOOL isurlspecial(WCHAR c)
3876 {
3877 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
3878 return strchrW( special_chars, c ) != NULL;
3879 }
3880
3881 /**
3882 * This proc takes a selection, and scans it forward in order to select the span
3883 * of a possible URL candidate. A possible URL candidate must start with isalnum
3884 * or one of the following special characters: *|/\+%#@ and must consist entirely
3885 * of the characters allowed to start the URL, plus : (colon) which may occur
3886 * at most once, and not at either end.
3887 *
3888 * sel_max == -1 indicates scan to end of text.
3889 */
3890 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
3891 int * candidate_min, int * candidate_max)
3892 {
3893 ME_DisplayItem * item;
3894 ME_DisplayItem * para;
3895 int nStart;
3896 BOOL foundColon = FALSE;
3897 WCHAR lastAcceptedChar = '\0';
3898
3899 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
3900
3901 *candidate_min = *candidate_max = -1;
3902 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
3903 if (!item) return FALSE;
3904 TRACE("nStart = %d\n", nStart);
3905 para = ME_GetParagraph(item);
3906 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3907 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
3908 {
3909 ME_DisplayItem * next_item;
3910
3911 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
3912 /* Find start of candidate */
3913 if (*candidate_min == -1) {
3914 while (nStart < ME_StrLen(item->member.run.strText) &&
3915 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3916 isurlspecial(item->member.run.strText->szData[nStart]))) {
3917 nStart++;
3918 }
3919 if (nStart < ME_StrLen(item->member.run.strText) &&
3920 (isalnumW(item->member.run.strText->szData[nStart]) ||
3921 isurlspecial(item->member.run.strText->szData[nStart]))) {
3922 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3923 lastAcceptedChar = item->member.run.strText->szData[nStart];
3924 nStart++;
3925 }
3926 }
3927
3928 /* Find end of candidate */
3929 if (*candidate_min >= 0) {
3930 while (nStart < ME_StrLen(item->member.run.strText) &&
3931 (isalnumW(item->member.run.strText->szData[nStart]) ||
3932 isurlspecial(item->member.run.strText->szData[nStart]) ||
3933 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
3934 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
3935 lastAcceptedChar = item->member.run.strText->szData[nStart];
3936 nStart++;
3937 }
3938 if (nStart < ME_StrLen(item->member.run.strText) &&
3939 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3940 isurlspecial(item->member.run.strText->szData[nStart]) )) {
3941 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3942 nStart++;
3943 if (lastAcceptedChar == ':') (*candidate_max)--;
3944 return TRUE;
3945 }
3946 }
3947 } else {
3948 /* End of paragraph: skip it if before candidate span, or terminates
3949 current active span */
3950 if (*candidate_min >= 0) {
3951 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
3952 if (lastAcceptedChar == ':') (*candidate_max)--;
3953 return TRUE;
3954 }
3955 }
3956
3957 /* Reaching this point means no span was found, so get next span */
3958 next_item = ME_FindItemFwd(item, diRun);
3959 if (!next_item) {
3960 if (*candidate_min >= 0) {
3961 /* There are no further runs, so take end of text as end of candidate */
3962 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3963 if (lastAcceptedChar == ':') (*candidate_max)--;
3964 return TRUE;
3965 }
3966 }
3967 item = next_item;
3968 para = ME_GetParagraph(item);
3969 nStart = 0;
3970 }
3971
3972 if (item) {
3973 if (*candidate_min >= 0) {
3974 /* There are no further runs, so take end of text as end of candidate */
3975 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3976 if (lastAcceptedChar == ':') (*candidate_max)--;
3977 return TRUE;
3978 }
3979 }
3980 return FALSE;
3981 }
3982
3983 /**
3984 * This proc evaluates the selection and returns TRUE if it can be considered an URL
3985 */
3986 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
3987 {
3988 struct prefix_s {
3989 const char *text;
3990 int length;
3991 } prefixes[12] = {
3992 /* Code below depends on these being in decreasing length order! */
3993 {"prospero:", 10},
3994 {"telnet:", 8},
3995 {"gopher:", 8},
3996 {"mailto:", 8},
3997 {"https:", 7},
3998 {"file:", 6},
3999 {"news:", 6},
4000 {"wais:", 6},
4001 {"nntp:", 6},
4002 {"http:", 5},
4003 {"www.", 5},
4004 {"ftp:", 5},
4005 };
4006 LPWSTR bufferW = NULL;
4007 WCHAR bufW[32];
4008 int i;
4009
4010 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4011 assert(sel_min <= sel_max);
4012 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
4013 {
4014 if (sel_max - sel_min < prefixes[i].length) continue;
4015 if (bufferW == NULL) {
4016 bufferW = (LPWSTR)heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
4017 }
4018 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, strlen(prefixes[i].text)), 0);
4019 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
4020 if (!lstrcmpW(bufW, bufferW))
4021 {
4022 heap_free(bufferW);
4023 return TRUE;
4024 }
4025 }
4026 heap_free(bufferW);
4027 return FALSE;
4028 }
4029
4030 /**
4031 * This proc walks through the indicated selection and evaluates whether each
4032 * section identified by ME_FindNextURLCandidate and in-between sections have
4033 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4034 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4035 *
4036 * Returns TRUE if at least one section was modified.
4037 */
4038 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
4039 {
4040 BOOL modified = FALSE;
4041 int cMin, cMax;
4042
4043 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4044 do
4045 {
4046 int beforeURL[2];
4047 int inURL[2];
4048 CHARFORMAT2W link;
4049
4050 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4051 {
4052 /* Section before candidate is not an URL */
4053 beforeURL[0] = sel_min;
4054 beforeURL[1] = cMin;
4055
4056 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4057 {
4058 inURL[0] = cMin; inURL[1] = cMax;
4059 }
4060 else
4061 {
4062 beforeURL[1] = cMax;
4063 inURL[0] = inURL[1] = -1;
4064 }
4065 sel_min = cMax;
4066 }
4067 else
4068 {
4069 /* No more candidates until end of selection */
4070 beforeURL[0] = sel_min;
4071 beforeURL[1] = sel_max;
4072 inURL[0] = inURL[1] = -1;
4073 sel_min = sel_max;
4074 }
4075
4076 if (beforeURL[0] < beforeURL[1])
4077 {
4078 /* CFE_LINK effect should be consistently unset */
4079 link.cbSize = sizeof(link);
4080 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4081 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4082 {
4083 /* CFE_LINK must be unset from this range */
4084 memset(&link, 0, sizeof(CHARFORMAT2W));
4085 link.cbSize = sizeof(link);
4086 link.dwMask = CFM_LINK;
4087 link.dwEffects = 0;
4088 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4089 modified = TRUE;
4090 }
4091 }
4092 if (inURL[0] < inURL[1])
4093 {
4094 /* CFE_LINK effect should be consistently set */
4095 link.cbSize = sizeof(link);
4096 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4097 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4098 {
4099 /* CFE_LINK must be set on this range */
4100 memset(&link, 0, sizeof(CHARFORMAT2W));
4101 link.cbSize = sizeof(link);
4102 link.dwMask = CFM_LINK;
4103 link.dwEffects = CFE_LINK;
4104 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4105 modified = TRUE;
4106 }
4107 }
4108 } while (sel_min < sel_max);
4109 return modified;
4110 }
4111
4112 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4113 {
4114 ME_DisplayItem * startPara, * endPara;
4115 ME_DisplayItem * item;
4116 int dummy;
4117 int from, to;
4118
4119 ME_GetSelection(editor, &from, &to);
4120 if (from > to) from ^= to, to ^=from, from ^= to;
4121 startPara = NULL; endPara = NULL;
4122
4123 /* Find paragraph previous to the one that contains start cursor */
4124 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4125 if (item) {
4126 startPara = ME_FindItemBack(item, diParagraph);
4127 item = ME_FindItemBack(startPara, diParagraph);
4128 if (item) startPara = item;
4129 }
4130
4131 /* Find paragraph that contains end cursor */
4132 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4133 if (item) {
4134 endPara = ME_FindItemFwd(item, diParagraph);
4135 }
4136
4137 if (startPara && endPara) {
4138 ME_UpdateLinkAttribute(editor,
4139 startPara->member.para.nCharOfs,
4140 endPara->member.para.nCharOfs);
4141 } else if (startPara) {
4142 ME_UpdateLinkAttribute(editor,
4143 startPara->member.para.nCharOfs,
4144 -1);
4145 }
4146 }
Windows API implementation