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richedit: Removed unused variable bCaretShown in ME_TextEditor.
[wine/multimedia.git] / dlls / riched20 / editor.c
blob8a099a65f504b4cb5dc92a8af0cc31f22e2b7921
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;
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 RTFFlushOutputBuffer(info);
466 ME_GetParagraph(info->editor->pCursors[0].pRun)->member.para.bTable = FALSE;
467 break;
468 case rtfInTable:
469 {
470 ME_DisplayItem *para;
471
472 RTFFlushOutputBuffer(info);
473 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
474 assert(para->member.para.pCells);
475 para->member.para.bTable = TRUE;
476 return;
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 style = editor->pBuffer->pDefaultStyle;
1044 ME_AddRefStyle(style);
1045 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1046 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1047 from = to = 0;
1048 ME_ClearTempStyle(editor);
1049 /* FIXME restore default paragraph formatting ! */
1050 }
1051
1052
1053 /* Back up undo mode to a local variable */
1054 nUndoMode = editor->nUndoMode;
1055
1056 /* Only create an undo if SFF_SELECTION is set */
1057 if (!(format & SFF_SELECTION))
1058 editor->nUndoMode = umIgnore;
1059
1060 inStream.editstream = stream;
1061 inStream.editstream->dwError = 0;
1062 inStream.dwSize = 0;
1063 inStream.dwUsed = 0;
1064
1065 if (format & SF_RTF)
1066 {
1067 /* Check if it's really RTF, and if it is not, use plain text */
1068 ME_StreamInFill(&inStream);
1069 if (!inStream.editstream->dwError)
1070 {
1071 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1072 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1073 {
1074 invalidRTF = TRUE;
1075 inStream.editstream->dwError = -16;
1076 }
1077 }
1078 }
1079
1080 if (!invalidRTF && !inStream.editstream->dwError)
1081 {
1082 if (format & SF_RTF) {
1083 /* setup the RTF parser */
1084 memset(&parser, 0, sizeof parser);
1085 RTFSetEditStream(&parser, &inStream);
1086 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1087 parser.hwndEdit = editor->hWnd;
1088 parser.editor = editor;
1089 parser.style = style;
1090 WriterInit(&parser);
1091 RTFInit(&parser);
1092 RTFSetReadHook(&parser, ME_RTFReadHook);
1093 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1094 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1095 BeginFile(&parser);
1096
1097 /* do the parsing */
1098 RTFRead(&parser);
1099 RTFFlushOutputBuffer(&parser);
1100 RTFDestroy(&parser);
1101 if (parser.lpRichEditOle)
1102 IRichEditOle_Release(parser.lpRichEditOle);
1103
1104 if (!inStream.editstream->dwError && parser.stackTop > 0)
1105 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1106
1107 /* Remove last line break, as mandated by tests. This is not affected by
1108 CR/LF counters, since RTF streaming presents only \para tokens, which
1109 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1110 */
1111 if (stripLastCR) {
1112 int newfrom, newto;
1113 ME_GetSelection(editor, &newfrom, &newto);
1114 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1115 WCHAR lastchar[3] = {'\0', '\0'};
1116 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1117
1118 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1119 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1120 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize);
1121 }
1122 }
1123 }
1124
1125 style = parser.style;
1126 }
1127 else if (format & SF_TEXT)
1128 ME_StreamInText(editor, format, &inStream, style);
1129 else
1130 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1131 ME_GetSelection(editor, &to, &to2);
1132 /* put the cursor at the top */
1133 if (!(format & SFF_SELECTION))
1134 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1135 }
1136
1137 /* Restore saved undo mode */
1138 editor->nUndoMode = nUndoMode;
1139
1140 /* even if we didn't add an undo, we need to commit anything on the stack */
1141 ME_CommitUndo(editor);
1142
1143 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1144 if (!(format & SFF_SELECTION))
1145 ME_EmptyUndoStack(editor);
1146
1147 ME_ReleaseStyle(style);
1148 editor->nEventMask = nEventMask;
1149 ME_UpdateRepaint(editor);
1150 if (!(format & SFF_SELECTION)) {
1151 ME_ClearTempStyle(editor);
1152 }
1153 HideCaret(editor->hWnd);
1154 ME_MoveCaret(editor);
1155 ShowCaret(editor->hWnd);
1156 ME_SendSelChange(editor);
1157 ME_SendRequestResize(editor, FALSE);
1158
1159 return 0;
1160 }
1161
1162
1163 typedef struct tagME_RTFStringStreamStruct
1164 {
1165 char *string;
1166 int pos;
1167 int length;
1168 } ME_RTFStringStreamStruct;
1169
1170 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1171 {
1172 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1173 int count;
1174
1175 count = min(cb, pStruct->length - pStruct->pos);
1176 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1177 pStruct->pos += count;
1178 *pcb = count;
1179 return 0;
1180 }
1181
1182 static void
1183 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1184 {
1185 EDITSTREAM es;
1186 ME_RTFStringStreamStruct data;
1187
1188 data.string = string;
1189 data.length = strlen(string);
1190 data.pos = 0;
1191 es.dwCookie = (DWORD)&data;
1192 es.pfnCallback = ME_ReadFromRTFString;
1193 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1194 }
1195
1196
1197 ME_DisplayItem *
1198 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1199 {
1200 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1201 int runLength;
1202
1203 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1204 item = ME_FindItemFwd(item, diParagraph);
1205
1206 if (!item)
1207 return item;
1208
1209 nOffset -= item->member.para.nCharOfs;
1210 if (nItemType == diParagraph) {
1211 if (nItemOffset)
1212 *nItemOffset = nOffset;
1213 return item;
1214 }
1215
1216 do {
1217 item = ME_FindItemFwd(item, diRun);
1218 runLength = ME_StrLen(item->member.run.strText);
1219 if (item->member.run.nFlags & MERF_ENDPARA)
1220 runLength = item->member.run.nCR + item->member.run.nLF;
1221 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1222 if (item) {
1223 nOffset -= item->member.run.nCharOfs;
1224
1225 /* Special case: nOffset may not point exactly at the division between the
1226 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1227 into the next run, if one exists
1228 */
1229 if ( item->member.run.nFlags & MERF_ENDPARA
1230 && nOffset == item->member.run.nCR
1231 && item->member.run.nLF > 0) {
1232 ME_DisplayItem *nextItem;
1233 nextItem = ME_FindItemFwd(item, diRun);
1234 if (nextItem) {
1235 nOffset = 0;
1236 item = nextItem;
1237 }
1238 }
1239 if (nItemOffset)
1240 *nItemOffset = nOffset;
1241 }
1242 return item;
1243 }
1244
1245
1246 static int
1247 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1248 {
1249 const int nLen = lstrlenW(text);
1250 const int nTextLen = ME_GetTextLength(editor);
1251 int nStart, nEnd;
1252 int nMin, nMax;
1253 ME_DisplayItem *item;
1254 ME_DisplayItem *para;
1255 WCHAR wLastChar = ' ';
1256
1257 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1258 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1259
1260 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1261 FIXME("Flags 0x%08x not implemented\n",
1262 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1263
1264 nMin = chrg->cpMin;
1265 if (chrg->cpMax == -1)
1266 nMax = nTextLen;
1267 else
1268 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1269
1270 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1271 if (editor->bEmulateVersion10 && nMax == nTextLen)
1272 {
1273 flags |= FR_DOWN;
1274 }
1275
1276 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1277 if (editor->bEmulateVersion10 && nMax < nMin)
1278 {
1279 if (chrgText)
1280 {
1281 chrgText->cpMin = -1;
1282 chrgText->cpMax = -1;
1283 }
1284 return -1;
1285 }
1286
1287 /* when searching up, if cpMin < cpMax, then instead of searching
1288 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1289 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1290 * case, it is always bigger than cpMin.
1291 */
1292 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1293 {
1294 int nSwap = nMax;
1295
1296 nMax = nMin > nTextLen ? nTextLen : nMin;
1297 if (nMin < nSwap || chrg->cpMax == -1)
1298 nMin = 0;
1299 else
1300 nMin = nSwap;
1301 }
1302
1303 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1304 {
1305 if (chrgText)
1306 chrgText->cpMin = chrgText->cpMax = -1;
1307 return -1;
1308 }
1309
1310 if (flags & FR_DOWN) /* Forward search */
1311 {
1312 /* If possible, find the character before where the search starts */
1313 if ((flags & FR_WHOLEWORD) && nMin)
1314 {
1315 nStart = nMin - 1;
1316 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1317 if (!item)
1318 {
1319 if (chrgText)
1320 chrgText->cpMin = chrgText->cpMax = -1;
1321 return -1;
1322 }
1323 wLastChar = item->member.run.strText->szData[nStart];
1324 }
1325
1326 nStart = nMin;
1327 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1328 if (!item)
1329 {
1330 if (chrgText)
1331 chrgText->cpMin = chrgText->cpMax = -1;
1332 return -1;
1333 }
1334
1335 para = ME_GetParagraph(item);
1336 while (item
1337 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1338 {
1339 ME_DisplayItem *pCurItem = item;
1340 int nCurStart = nStart;
1341 int nMatched = 0;
1342
1343 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1344 {
1345 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1346 break;
1347
1348 nMatched++;
1349 if (nMatched == nLen)
1350 {
1351 ME_DisplayItem *pNextItem = pCurItem;
1352 int nNextStart = nCurStart;
1353 WCHAR wNextChar;
1354
1355 /* Check to see if next character is a whitespace */
1356 if (flags & FR_WHOLEWORD)
1357 {
1358 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1359 {
1360 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1361 nNextStart = -nMatched;
1362 }
1363
1364 if (pNextItem)
1365 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1366 else
1367 wNextChar = ' ';
1368
1369 if (isalnumW(wNextChar))
1370 break;
1371 }
1372
1373 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1374 if (chrgText)
1375 {
1376 chrgText->cpMin = nStart;
1377 chrgText->cpMax = nStart + nLen;
1378 }
1379 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1380 return nStart;
1381 }
1382 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1383 {
1384 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1385 para = ME_GetParagraph(pCurItem);
1386 nCurStart = -nMatched;
1387 }
1388 }
1389 if (pCurItem)
1390 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1391 else
1392 wLastChar = ' ';
1393
1394 nStart++;
1395 if (nStart == ME_StrLen(item->member.run.strText))
1396 {
1397 item = ME_FindItemFwd(item, diRun);
1398 para = ME_GetParagraph(item);
1399 nStart = 0;
1400 }
1401 }
1402 }
1403 else /* Backward search */
1404 {
1405 /* If possible, find the character after where the search ends */
1406 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1407 {
1408 nEnd = nMax + 1;
1409 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1410 if (!item)
1411 {
1412 if (chrgText)
1413 chrgText->cpMin = chrgText->cpMax = -1;
1414 return -1;
1415 }
1416 wLastChar = item->member.run.strText->szData[nEnd];
1417 }
1418
1419 nEnd = nMax;
1420 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1421 if (!item)
1422 {
1423 if (chrgText)
1424 chrgText->cpMin = chrgText->cpMax = -1;
1425 return -1;
1426 }
1427
1428 para = ME_GetParagraph(item);
1429
1430 while (item
1431 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1432 {
1433 ME_DisplayItem *pCurItem = item;
1434 int nCurEnd = nEnd;
1435 int nMatched = 0;
1436
1437 if (nCurEnd - nMatched == 0)
1438 {
1439 pCurItem = ME_FindItemBack(pCurItem, diRun);
1440 para = ME_GetParagraph(pCurItem);
1441 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1442 }
1443
1444 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1445 {
1446 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1447 break;
1448
1449 nMatched++;
1450 if (nMatched == nLen)
1451 {
1452 ME_DisplayItem *pPrevItem = pCurItem;
1453 int nPrevEnd = nCurEnd;
1454 WCHAR wPrevChar;
1455
1456 /* Check to see if previous character is a whitespace */
1457 if (flags & FR_WHOLEWORD)
1458 {
1459 if (nPrevEnd - nMatched == 0)
1460 {
1461 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1462 if (pPrevItem)
1463 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1464 }
1465
1466 if (pPrevItem)
1467 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1468 else
1469 wPrevChar = ' ';
1470
1471 if (isalnumW(wPrevChar))
1472 break;
1473 }
1474
1475 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1476 if (chrgText)
1477 {
1478 chrgText->cpMin = nStart;
1479 chrgText->cpMax = nStart + nLen;
1480 }
1481 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1482 return nStart;
1483 }
1484 if (nCurEnd - nMatched == 0)
1485 {
1486 pCurItem = ME_FindItemBack(pCurItem, diRun);
1487 /* Don't care about pCurItem becoming NULL here; it's already taken
1488 * care of in the exterior loop condition */
1489 para = ME_GetParagraph(pCurItem);
1490 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1491 }
1492 }
1493 if (pCurItem)
1494 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1495 else
1496 wLastChar = ' ';
1497
1498 nEnd--;
1499 if (nEnd < 0)
1500 {
1501 item = ME_FindItemBack(item, diRun);
1502 para = ME_GetParagraph(item);
1503 nEnd = ME_StrLen(item->member.run.strText);
1504 }
1505 }
1506 }
1507 TRACE("not found\n");
1508 if (chrgText)
1509 chrgText->cpMin = chrgText->cpMax = -1;
1510 return -1;
1511 }
1512
1513 /* helper to send a msg filter notification */
1514 static BOOL
1515 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1516 {
1517 MSGFILTER msgf;
1518
1519 msgf.nmhdr.hwndFrom = editor->hWnd;
1520 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1521 msgf.nmhdr.code = EN_MSGFILTER;
1522 msgf.msg = msg;
1523
1524 msgf.wParam = *wParam;
1525 msgf.lParam = *lParam;
1526 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1527 return FALSE;
1528 *wParam = msgf.wParam;
1529 *lParam = msgf.lParam;
1530 msgf.wParam = *wParam;
1531
1532 return TRUE;
1533 }
1534
1535 static BOOL
1536 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1537 {
1538 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1539 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1540
1541 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
1542 editor->nSelectionType = stPosition;
1543
1544 switch (nKey)
1545 {
1546 case VK_LEFT:
1547 case VK_RIGHT:
1548 case VK_HOME:
1549 case VK_END:
1550 editor->nUDArrowX = -1;
1551 /* fall through */
1552 case VK_UP:
1553 case VK_DOWN:
1554 case VK_PRIOR:
1555 case VK_NEXT:
1556 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
1557 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1558 return TRUE;
1559 case VK_BACK:
1560 case VK_DELETE:
1561 editor->nUDArrowX = -1;
1562 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1563 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1564 return FALSE;
1565 if (ME_IsSelection(editor))
1566 {
1567 ME_DeleteSelection(editor);
1568 ME_CommitUndo(editor);
1569 }
1570 else if (nKey == VK_DELETE)
1571 {
1572 /* Delete stops group typing.
1573 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
1574 ME_DeleteTextAtCursor(editor, 1, 1);
1575 ME_CommitUndo(editor);
1576 }
1577 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1578 {
1579 /* Backspace can be grouped for a single undo */
1580 ME_ContinueCoalescingTransaction(editor);
1581 ME_DeleteTextAtCursor(editor, 1, 1);
1582 ME_CommitCoalescingUndo(editor);
1583 }
1584 else
1585 return TRUE;
1586 ME_UpdateSelectionLinkAttribute(editor);
1587 ME_UpdateRepaint(editor);
1588 ME_SendRequestResize(editor, FALSE);
1589 return TRUE;
1590
1591 default:
1592 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
1593 editor->nUDArrowX = -1;
1594 if (ctrl_is_down)
1595 {
1596 if (nKey == 'W')
1597 {
1598 CHARFORMAT2W chf;
1599 char buf[2048];
1600 chf.cbSize = sizeof(chf);
1601
1602 ME_GetSelectionCharFormat(editor, &chf);
1603 ME_DumpStyleToBuf(&chf, buf);
1604 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1605 }
1606 if (nKey == 'Q')
1607 {
1608 ME_CheckCharOffsets(editor);
1609 }
1610 }
1611 }
1612 return FALSE;
1613 }
1614
1615 /* Process the message and calculate the new click count.
1616 *
1617 * returns: The click count if it is mouse down event, else returns 0. */
1618 static int ME_CalculateClickCount(HWND hWnd, UINT msg, WPARAM wParam,
1619 LPARAM lParam)
1620 {
1621 static int clickNum = 0;
1622 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
1623 return 0;
1624
1625 if ((msg == WM_LBUTTONDBLCLK) ||
1626 (msg == WM_RBUTTONDBLCLK) ||
1627 (msg == WM_MBUTTONDBLCLK) ||
1628 (msg == WM_XBUTTONDBLCLK))
1629 {
1630 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1631 }
1632
1633 if ((msg == WM_LBUTTONDOWN) ||
1634 (msg == WM_RBUTTONDOWN) ||
1635 (msg == WM_MBUTTONDOWN) ||
1636 (msg == WM_XBUTTONDOWN))
1637 {
1638 static MSG prevClickMsg;
1639 MSG clickMsg;
1640 clickMsg.hwnd = hWnd;
1641 clickMsg.message = msg;
1642 clickMsg.wParam = wParam;
1643 clickMsg.lParam = lParam;
1644 clickMsg.time = GetMessageTime();
1645 clickMsg.pt.x = (short)LOWORD(lParam);
1646 clickMsg.pt.y = (short)HIWORD(lParam);
1647 if ((clickNum != 0) &&
1648 (clickMsg.message == prevClickMsg.message) &&
1649 (clickMsg.hwnd == prevClickMsg.hwnd) &&
1650 (clickMsg.wParam == prevClickMsg.wParam) &&
1651 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
1652 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1653 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1654 {
1655 clickNum++;
1656 } else {
1657 clickNum = 1;
1658 }
1659 prevClickMsg = clickMsg;
1660 } else {
1661 return 0;
1662 }
1663 return clickNum;
1664 }
1665
1666 static BOOL ME_SetCursor(ME_TextEditor *editor, int x)
1667 {
1668 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
1669 (x < editor->selofs ||
1670 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
1671 {
1672 SetCursor(hLeft);
1673 return TRUE;
1674 }
1675 return FALSE;
1676 }
1677
1678 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1679 {
1680 CHARRANGE selrange;
1681 HMENU menu;
1682 int seltype = 0;
1683 if(!editor->lpOleCallback)
1684 return FALSE;
1685 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
1686 if(selrange.cpMin == selrange.cpMax)
1687 seltype |= SEL_EMPTY;
1688 else
1689 {
1690 /* FIXME: Handle objects */
1691 seltype |= SEL_TEXT;
1692 if(selrange.cpMax-selrange.cpMin > 1)
1693 seltype |= SEL_MULTICHAR;
1694 }
1695 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1696 {
1697 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1698 DestroyMenu(menu);
1699 }
1700 return TRUE;
1701 }
1702
1703 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1704 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1705 int i;
1706 ed->hWnd = hWnd;
1707 ed->bEmulateVersion10 = FALSE;
1708 ed->pBuffer = ME_MakeText();
1709 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1710 ME_MakeFirstParagraph(ed);
1711 /* The four cursors are for:
1712 * 0 - The position where the caret is shown
1713 * 1 - The anchored end of the selection (for normal selection)
1714 * 2 & 3 - The anchored start and end respectively for word, line,
1715 * or paragraph selection.
1716 */
1717 ed->nCursors = 4;
1718 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1719 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1720 ed->pCursors[0].nOffset = 0;
1721 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1722 ed->pCursors[1].nOffset = 0;
1723 ed->pCursors[2] = ed->pCursors[0];
1724 ed->pCursors[3] = ed->pCursors[1];
1725 ed->nLastTotalLength = ed->nTotalLength = 0;
1726 ed->nHeight = 0;
1727 ed->nUDArrowX = -1;
1728 ed->nSequence = 0;
1729 ed->rgbBackColor = -1;
1730 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1731 ed->bCaretAtEnd = FALSE;
1732 ed->nEventMask = 0;
1733 ed->nModifyStep = 0;
1734 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1735 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1736 ed->nUndoStackSize = 0;
1737 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1738 ed->nUndoMode = umAddToUndo;
1739 ed->nParagraphs = 1;
1740 ed->nLastSelStart = ed->nLastSelEnd = 0;
1741 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1742 ed->bRedraw = TRUE;
1743 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL) ? FALSE : TRUE;
1744 ed->bHideSelection = FALSE;
1745 ed->nInvalidOfs = -1;
1746 ed->pfnWordBreak = NULL;
1747 ed->lpOleCallback = NULL;
1748 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1749 ed->AutoURLDetect_bEnable = FALSE;
1750 ed->bHaveFocus = FALSE;
1751 for (i=0; i<HFONT_CACHE_SIZE; i++)
1752 {
1753 ed->pFontCache[i].nRefs = 0;
1754 ed->pFontCache[i].nAge = 0;
1755 ed->pFontCache[i].hFont = NULL;
1756 }
1757
1758 ME_CheckCharOffsets(ed);
1759 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
1760 ed->selofs = SELECTIONBAR_WIDTH;
1761 else
1762 ed->selofs = 0;
1763 ed->nSelectionType = stPosition;
1764
1765 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1766 ed->cPasswordMask = '*';
1767 else
1768 ed->cPasswordMask = 0;
1769
1770 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
1771
1772 return ed;
1773 }
1774
1775 typedef struct tagME_GlobalDestStruct
1776 {
1777 HGLOBAL hData;
1778 int nLength;
1779 } ME_GlobalDestStruct;
1780
1781 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1782 {
1783 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1784 int i;
1785 WORD *pSrc, *pDest;
1786
1787 cb = cb >> 1;
1788 pDest = (WORD *)lpBuff;
1789 pSrc = (WORD *)GlobalLock(pData->hData);
1790 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1791 pDest[i] = pSrc[pData->nLength+i];
1792 }
1793 pData->nLength += i;
1794 *pcb = 2*i;
1795 GlobalUnlock(pData->hData);
1796 return 0;
1797 }
1798
1799 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1800 {
1801 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1802 int i;
1803 BYTE *pSrc, *pDest;
1804
1805 pDest = lpBuff;
1806 pSrc = (BYTE *)GlobalLock(pData->hData);
1807 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1808 pDest[i] = pSrc[pData->nLength+i];
1809 }
1810 pData->nLength += i;
1811 *pcb = i;
1812 GlobalUnlock(pData->hData);
1813 return 0;
1814 }
1815
1816
1817 void ME_DestroyEditor(ME_TextEditor *editor)
1818 {
1819 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1820 ME_DisplayItem *p = pFirst, *pNext = NULL;
1821 int i;
1822
1823 ME_ClearTempStyle(editor);
1824 ME_EmptyUndoStack(editor);
1825 while(p) {
1826 pNext = p->next;
1827 ME_DestroyDisplayItem(p);
1828 p = pNext;
1829 }
1830 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1831 for (i=0; i<HFONT_CACHE_SIZE; i++)
1832 {
1833 if (editor->pFontCache[i].hFont)
1834 DeleteObject(editor->pFontCache[i].hFont);
1835 }
1836 if (editor->rgbBackColor != -1)
1837 DeleteObject(editor->hbrBackground);
1838 if(editor->lpOleCallback)
1839 IUnknown_Release(editor->lpOleCallback);
1840
1841 FREE_OBJ(editor->pBuffer);
1842 FREE_OBJ(editor->pCursors);
1843
1844 FREE_OBJ(editor);
1845 }
1846
1847 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1848 {
1849 TRACE("\n");
1850 switch (fdwReason)
1851 {
1852 case DLL_PROCESS_ATTACH:
1853 DisableThreadLibraryCalls(hinstDLL);
1854 me_heap = HeapCreate (0, 0x10000, 0);
1855 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1856 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
1857 LookupInit();
1858 break;
1859
1860 case DLL_PROCESS_DETACH:
1861 UnregisterClassW(RichEdit20W, 0);
1862 UnregisterClassW(RichEdit50W, 0);
1863 UnregisterClassA("RichEdit20A", 0);
1864 UnregisterClassA("RichEdit50A", 0);
1865 if (ME_ListBoxRegistered)
1866 UnregisterClassW(REListBox20W, 0);
1867 if (ME_ComboBoxRegistered)
1868 UnregisterClassW(REComboBox20W, 0);
1869 LookupCleanup();
1870 HeapDestroy (me_heap);
1871 me_heap = NULL;
1872 break;
1873 }
1874 return TRUE;
1875 }
1876
1877
1878 #define UNSUPPORTED_MSG(e) \
1879 case e: \
1880 FIXME(#e ": stub\n"); \
1881 return DefWindowProcW(hWnd, msg, wParam, lParam);
1882
1883 static const char * const edit_messages[] = {
1884 "EM_GETSEL",
1885 "EM_SETSEL",
1886 "EM_GETRECT",
1887 "EM_SETRECT",
1888 "EM_SETRECTNP",
1889 "EM_SCROLL",
1890 "EM_LINESCROLL",
1891 "EM_SCROLLCARET",
1892 "EM_GETMODIFY",
1893 "EM_SETMODIFY",
1894 "EM_GETLINECOUNT",
1895 "EM_LINEINDEX",
1896 "EM_SETHANDLE",
1897 "EM_GETHANDLE",
1898 "EM_GETTHUMB",
1899 "EM_UNKNOWN_BF",
1900 "EM_UNKNOWN_C0",
1901 "EM_LINELENGTH",
1902 "EM_REPLACESEL",
1903 "EM_UNKNOWN_C3",
1904 "EM_GETLINE",
1905 "EM_LIMITTEXT",
1906 "EM_CANUNDO",
1907 "EM_UNDO",
1908 "EM_FMTLINES",
1909 "EM_LINEFROMCHAR",
1910 "EM_UNKNOWN_CA",
1911 "EM_SETTABSTOPS",
1912 "EM_SETPASSWORDCHAR",
1913 "EM_EMPTYUNDOBUFFER",
1914 "EM_GETFIRSTVISIBLELINE",
1915 "EM_SETREADONLY",
1916 "EM_SETWORDBREAKPROC",
1917 "EM_GETWORDBREAKPROC",
1918 "EM_GETPASSWORDCHAR",
1919 "EM_SETMARGINS",
1920 "EM_GETMARGINS",
1921 "EM_GETLIMITTEXT",
1922 "EM_POSFROMCHAR",
1923 "EM_CHARFROMPOS"
1924 };
1925
1926 static const char * const richedit_messages[] = {
1927 "EM_CANPASTE",
1928 "EM_DISPLAYBAND",
1929 "EM_EXGETSEL",
1930 "EM_EXLIMITTEXT",
1931 "EM_EXLINEFROMCHAR",
1932 "EM_EXSETSEL",
1933 "EM_FINDTEXT",
1934 "EM_FORMATRANGE",
1935 "EM_GETCHARFORMAT",
1936 "EM_GETEVENTMASK",
1937 "EM_GETOLEINTERFACE",
1938 "EM_GETPARAFORMAT",
1939 "EM_GETSELTEXT",
1940 "EM_HIDESELECTION",
1941 "EM_PASTESPECIAL",
1942 "EM_REQUESTRESIZE",
1943 "EM_SELECTIONTYPE",
1944 "EM_SETBKGNDCOLOR",
1945 "EM_SETCHARFORMAT",
1946 "EM_SETEVENTMASK",
1947 "EM_SETOLECALLBACK",
1948 "EM_SETPARAFORMAT",
1949 "EM_SETTARGETDEVICE",
1950 "EM_STREAMIN",
1951 "EM_STREAMOUT",
1952 "EM_GETTEXTRANGE",
1953 "EM_FINDWORDBREAK",
1954 "EM_SETOPTIONS",
1955 "EM_GETOPTIONS",
1956 "EM_FINDTEXTEX",
1957 "EM_GETWORDBREAKPROCEX",
1958 "EM_SETWORDBREAKPROCEX",
1959 "EM_SETUNDOLIMIT",
1960 "EM_UNKNOWN_USER_83",
1961 "EM_REDO",
1962 "EM_CANREDO",
1963 "EM_GETUNDONAME",
1964 "EM_GETREDONAME",
1965 "EM_STOPGROUPTYPING",
1966 "EM_SETTEXTMODE",
1967 "EM_GETTEXTMODE",
1968 "EM_AUTOURLDETECT",
1969 "EM_GETAUTOURLDETECT",
1970 "EM_SETPALETTE",
1971 "EM_GETTEXTEX",
1972 "EM_GETTEXTLENGTHEX",
1973 "EM_SHOWSCROLLBAR",
1974 "EM_SETTEXTEX",
1975 "EM_UNKNOWN_USER_98",
1976 "EM_UNKNOWN_USER_99",
1977 "EM_SETPUNCTUATION",
1978 "EM_GETPUNCTUATION",
1979 "EM_SETWORDWRAPMODE",
1980 "EM_GETWORDWRAPMODE",
1981 "EM_SETIMECOLOR",
1982 "EM_GETIMECOLOR",
1983 "EM_SETIMEOPTIONS",
1984 "EM_GETIMEOPTIONS",
1985 "EM_CONVPOSITION",
1986 "EM_UNKNOWN_USER_109",
1987 "EM_UNKNOWN_USER_110",
1988 "EM_UNKNOWN_USER_111",
1989 "EM_UNKNOWN_USER_112",
1990 "EM_UNKNOWN_USER_113",
1991 "EM_UNKNOWN_USER_114",
1992 "EM_UNKNOWN_USER_115",
1993 "EM_UNKNOWN_USER_116",
1994 "EM_UNKNOWN_USER_117",
1995 "EM_UNKNOWN_USER_118",
1996 "EM_UNKNOWN_USER_119",
1997 "EM_SETLANGOPTIONS",
1998 "EM_GETLANGOPTIONS",
1999 "EM_GETIMECOMPMODE",
2000 "EM_FINDTEXTW",
2001 "EM_FINDTEXTEXW",
2002 "EM_RECONVERSION",
2003 "EM_SETIMEMODEBIAS",
2004 "EM_GETIMEMODEBIAS"
2005 };
2006
2007 static const char *
2008 get_msg_name(UINT msg)
2009 {
2010 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2011 return edit_messages[msg - EM_GETSEL];
2012 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2013 return richedit_messages[msg - EM_CANPASTE];
2014 return "";
2015 }
2016
2017 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2018 LPARAM lParam, BOOL unicode)
2019 {
2020 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2021
2022 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2023 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2024
2025 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
2026 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2027 return 0;
2028 }
2029
2030 switch(msg) {
2031
2032 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2033 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2034 UNSUPPORTED_MSG(EM_FMTLINES)
2035 UNSUPPORTED_MSG(EM_FORMATRANGE)
2036 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2037 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2038 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2039 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
2040 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2041 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2042 UNSUPPORTED_MSG(EM_GETREDONAME)
2043 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2044 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2045 UNSUPPORTED_MSG(EM_GETUNDONAME)
2046 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2047 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2048 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2049 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2050 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2051 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2052 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2053 UNSUPPORTED_MSG(EM_SETPALETTE)
2054 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2055 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2056 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2057 UNSUPPORTED_MSG(WM_STYLECHANGING)
2058 UNSUPPORTED_MSG(WM_STYLECHANGED)
2059 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
2060
2061 /* Messages specific to Richedit controls */
2062
2063 case EM_STREAMIN:
2064 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2065 case EM_STREAMOUT:
2066 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2067 case WM_GETDLGCODE:
2068 {
2069 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2070 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2071 {
2072 int vk = (int)((LPMSG)lParam)->wParam;
2073 /* if style says we want return key */
2074 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2075 {
2076 code |= DLGC_WANTMESSAGE;
2077 }
2078 /* we always handle ctrl-tab */
2079 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2080 {
2081 code |= DLGC_WANTMESSAGE;
2082 }
2083 }
2084 return code;
2085 }
2086 case WM_NCCREATE:
2087 {
2088 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2089 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2090 editor = ME_MakeEditor(hWnd);
2091 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2092 return TRUE;
2093 }
2094 case EM_EMPTYUNDOBUFFER:
2095 ME_EmptyUndoStack(editor);
2096 return 0;
2097 case EM_GETSEL:
2098 {
2099 /* Note: wParam/lParam can be NULL */
2100 UINT from, to;
2101 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2102 PUINT pto = lParam ? (PUINT)lParam : &to;
2103 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2104 if ((*pfrom|*pto) & 0xFFFF0000)
2105 return -1;
2106 return MAKELONG(*pfrom,*pto);
2107 }
2108 case EM_EXGETSEL:
2109 {
2110 CHARRANGE *pRange = (CHARRANGE *)lParam;
2111 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2112 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2113 return 0;
2114 }
2115 case EM_SETUNDOLIMIT:
2116 {
2117 if ((int)wParam < 0)
2118 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2119 else
2120 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2121 /* Setting a max stack size keeps wine from getting killed
2122 for hogging memory. Windows allocates all this memory at once, so
2123 no program would realistically set a value above our maximum. */
2124 return editor->nUndoLimit;
2125 }
2126 case EM_CANUNDO:
2127 return editor->pUndoStack != NULL;
2128 case EM_CANREDO:
2129 return editor->pRedoStack != NULL;
2130 case WM_UNDO: /* FIXME: actually not the same */
2131 case EM_UNDO:
2132 return ME_Undo(editor);
2133 case EM_REDO:
2134 return ME_Redo(editor);
2135 case EM_GETOPTIONS:
2136 {
2137 /* these flags are equivalent to the ES_* counterparts */
2138 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2139 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2140 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2141
2142 return settings;
2143 }
2144 case EM_SETOPTIONS:
2145 {
2146 /* these flags are equivalent to ES_* counterparts
2147 * ECO_READONLY is already implemented in the code, only requires
2148 * setting the bit to work
2149 */
2150 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2151 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2152 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2153 DWORD settings = mask & raw;
2154
2155 switch(wParam)
2156 {
2157 case ECOOP_SET:
2158 settings = lParam;
2159 break;
2160 case ECOOP_OR:
2161 settings |= lParam;
2162 break;
2163 case ECOOP_AND:
2164 settings &= lParam;
2165 break;
2166 case ECOOP_XOR:
2167 settings ^= lParam;
2168 }
2169 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2170
2171 if (settings & ECO_AUTOWORDSELECTION)
2172 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2173 if (settings & ECO_SELECTIONBAR)
2174 editor->selofs = SELECTIONBAR_WIDTH;
2175 else
2176 editor->selofs = 0;
2177 ME_WrapMarkedParagraphs(editor);
2178
2179 if (settings & ECO_VERTICAL)
2180 FIXME("ECO_VERTICAL not implemented yet!\n");
2181 if (settings & ECO_AUTOHSCROLL)
2182 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2183 if (settings & ECO_AUTOVSCROLL)
2184 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2185 if (settings & ECO_NOHIDESEL)
2186 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2187 if (settings & ECO_WANTRETURN)
2188 FIXME("ECO_WANTRETURN not implemented yet!\n");
2189
2190 return settings;
2191 }
2192 case EM_SETSEL:
2193 {
2194 ME_InvalidateSelection(editor);
2195 ME_SetSelection(editor, wParam, lParam);
2196 ME_InvalidateSelection(editor);
2197 HideCaret(editor->hWnd);
2198 ME_ShowCaret(editor);
2199 ME_SendSelChange(editor);
2200 return 0;
2201 }
2202 case EM_SETSCROLLPOS:
2203 {
2204 POINT *point = (POINT *)lParam;
2205 ME_ScrollAbs(editor, point->y);
2206 return 0;
2207 }
2208 case EM_AUTOURLDETECT:
2209 {
2210 if (wParam==1 || wParam ==0)
2211 {
2212 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2213 return 0;
2214 }
2215 return E_INVALIDARG;
2216 }
2217 case EM_GETAUTOURLDETECT:
2218 {
2219 return editor->AutoURLDetect_bEnable;
2220 }
2221 case EM_EXSETSEL:
2222 {
2223 int end;
2224 CHARRANGE range = *(CHARRANGE *)lParam;
2225
2226 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2227
2228 ME_InvalidateSelection(editor);
2229 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2230 ME_InvalidateSelection(editor);
2231 HideCaret(editor->hWnd);
2232 ME_ShowCaret(editor);
2233 ME_SendSelChange(editor);
2234
2235 return end;
2236 }
2237 case EM_SHOWSCROLLBAR:
2238 {
2239 ShowScrollBar(editor->hWnd, wParam, lParam);
2240 return 0;
2241 }
2242 case EM_SETTEXTEX:
2243 {
2244 LPWSTR wszText;
2245 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2246 size_t len;
2247 int from, to;
2248 ME_Style *style;
2249 int oldModify = editor->nModifyStep;
2250
2251 if (!pStruct) return 0;
2252
2253 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2254 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2255 pStruct->flags, pStruct->codepage);
2256
2257 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2258 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2259 len = wszText ? lstrlenW(wszText) : 0;
2260
2261 if (pStruct->flags & ST_SELECTION) {
2262 ME_GetSelection(editor, &from, &to);
2263 style = ME_GetSelectionInsertStyle(editor);
2264 ME_InternalDeleteText(editor, from, to - from);
2265 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2266 ME_StreamInRTFString(editor, 0, (char *)lParam);
2267 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2268 ME_ReleaseStyle(style);
2269
2270 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2271 }
2272 else {
2273 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2274 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2275 ME_StreamInRTFString(editor, 0, (char *)lParam);
2276 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2277 len = 1;
2278
2279 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2280 }
2281 ME_CommitUndo(editor);
2282 if (!(pStruct->flags & ST_KEEPUNDO))
2283 {
2284 editor->nModifyStep = oldModify;
2285 ME_EmptyUndoStack(editor);
2286 }
2287 ME_UpdateRepaint(editor);
2288 return len;
2289 }
2290 case EM_SETBKGNDCOLOR:
2291 {
2292 LRESULT lColor;
2293 if (editor->rgbBackColor != -1) {
2294 DeleteObject(editor->hbrBackground);
2295 lColor = editor->rgbBackColor;
2296 }
2297 else lColor = GetSysColor(COLOR_WINDOW);
2298
2299 if (wParam)
2300 {
2301 editor->rgbBackColor = -1;
2302 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2303 }
2304 else
2305 {
2306 editor->rgbBackColor = lParam;
2307 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2308 }
2309 if (editor->bRedraw)
2310 {
2311 InvalidateRect(hWnd, NULL, TRUE);
2312 UpdateWindow(hWnd);
2313 }
2314 return lColor;
2315 }
2316 case EM_GETMODIFY:
2317 return editor->nModifyStep == 0 ? 0 : -1;
2318 case EM_SETMODIFY:
2319 {
2320 if (wParam)
2321 editor->nModifyStep = 1;
2322 else
2323 editor->nModifyStep = 0;
2324
2325 return 0;
2326 }
2327 case EM_SETREADONLY:
2328 {
2329 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2330 if (wParam)
2331 nStyle |= ES_READONLY;
2332 else
2333 nStyle &= ~ES_READONLY;
2334 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2335 return 0;
2336 }
2337 case EM_SETEVENTMASK:
2338 {
2339 DWORD nOldMask = editor->nEventMask;
2340
2341 editor->nEventMask = lParam;
2342 return nOldMask;
2343 }
2344 case EM_GETEVENTMASK:
2345 return editor->nEventMask;
2346 case EM_SETCHARFORMAT:
2347 {
2348 CHARFORMAT2W buf, *p;
2349 BOOL bRepaint = TRUE;
2350 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2351 if (p == NULL) return 0;
2352 if (!wParam)
2353 ME_SetDefaultCharFormat(editor, p);
2354 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2355 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2356 return 0;
2357 } else if (wParam == SCF_ALL) {
2358 if (editor->mode & TM_PLAINTEXT)
2359 ME_SetDefaultCharFormat(editor, p);
2360 else {
2361 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2362 editor->nModifyStep = 1;
2363 }
2364 } else if (editor->mode & TM_PLAINTEXT) {
2365 return 0;
2366 } else {
2367 int from, to;
2368 ME_GetSelection(editor, &from, &to);
2369 bRepaint = (from != to);
2370 ME_SetSelectionCharFormat(editor, p);
2371 if (from != to) editor->nModifyStep = 1;
2372 }
2373 ME_CommitUndo(editor);
2374 if (bRepaint)
2375 ME_RewrapRepaint(editor);
2376 return 1;
2377 }
2378 case EM_GETCHARFORMAT:
2379 {
2380 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2381 if (dst->cbSize != sizeof(CHARFORMATA) &&
2382 dst->cbSize != sizeof(CHARFORMATW) &&
2383 dst->cbSize != sizeof(CHARFORMAT2A) &&
2384 dst->cbSize != sizeof(CHARFORMAT2W))
2385 return 0;
2386 tmp.cbSize = sizeof(tmp);
2387 if (!wParam)
2388 ME_GetDefaultCharFormat(editor, &tmp);
2389 else
2390 ME_GetSelectionCharFormat(editor, &tmp);
2391 ME_CopyToCFAny(dst, &tmp);
2392 return tmp.dwMask;
2393 }
2394 case EM_SETPARAFORMAT:
2395 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2396 ME_RewrapRepaint(editor);
2397 ME_CommitUndo(editor);
2398 return 0;
2399 case EM_GETPARAFORMAT:
2400 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2401 return 0;
2402 case EM_GETFIRSTVISIBLELINE:
2403 {
2404 ME_DisplayItem *p = editor->pBuffer->pFirst;
2405 int y = ME_GetYScrollPos(editor);
2406 int ypara = 0;
2407 int count = 0;
2408 int ystart, yend;
2409 while(p) {
2410 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
2411 if (p->type == diTextEnd)
2412 break;
2413 if (p->type == diParagraph) {
2414 ypara = p->member.para.nYPos;
2415 continue;
2416 }
2417 ystart = ypara + p->member.row.nYPos;
2418 yend = ystart + p->member.row.nHeight;
2419 if (y < yend) {
2420 break;
2421 }
2422 count++;
2423 }
2424 return count;
2425 }
2426 case EM_HIDESELECTION:
2427 {
2428 editor->bHideSelection = (wParam != 0);
2429 ME_InvalidateSelection(editor);
2430 return 0;
2431 }
2432 case EM_LINESCROLL:
2433 {
2434 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
2435 return TRUE; /* Should return false if a single line richedit control */
2436 }
2437 case WM_CLEAR:
2438 {
2439 int from, to;
2440 ME_GetSelection(editor, &from, &to);
2441 ME_InternalDeleteText(editor, from, to-from);
2442 ME_CommitUndo(editor);
2443 ME_UpdateRepaint(editor);
2444 return 0;
2445 }
2446 case EM_REPLACESEL:
2447 {
2448 int from, to;
2449 ME_Style *style;
2450 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
2451 size_t len = wszText ? lstrlenW(wszText) : 0;
2452 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
2453
2454 ME_GetSelection(editor, &from, &to);
2455 style = ME_GetSelectionInsertStyle(editor);
2456 ME_InternalDeleteText(editor, from, to-from);
2457 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2458 ME_ReleaseStyle(style);
2459 /* drop temporary style if line end */
2460 /*
2461 * FIXME question: does abc\n mean: put abc,
2462 * clear temp style, put \n? (would require a change)
2463 */
2464 if (len>0 && wszText[len-1] == '\n')
2465 ME_ClearTempStyle(editor);
2466 ME_EndToUnicode(unicode, wszText);
2467 ME_CommitUndo(editor);
2468 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2469 if (!wParam)
2470 ME_EmptyUndoStack(editor);
2471 ME_UpdateRepaint(editor);
2472 return len;
2473 }
2474 case EM_SCROLLCARET:
2475 {
2476 int top, bottom; /* row's edges relative to document top */
2477 int nPos;
2478 ME_DisplayItem *para, *row;
2479
2480 nPos = ME_GetYScrollPos(editor);
2481 row = ME_RowStart(editor->pCursors[0].pRun);
2482 para = ME_GetParagraph(row);
2483 top = para->member.para.nYPos + row->member.row.nYPos;
2484 bottom = top + row->member.row.nHeight;
2485
2486 if (top < nPos) /* caret above window */
2487 ME_ScrollAbs(editor, top);
2488 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
2489 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
2490 return 0;
2491 }
2492 case WM_SETFONT:
2493 {
2494 LOGFONTW lf;
2495 CHARFORMAT2W fmt;
2496 HDC hDC;
2497 BOOL bRepaint = LOWORD(lParam);
2498
2499 if (!wParam)
2500 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
2501 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
2502 hDC = GetDC(hWnd);
2503 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
2504 ReleaseDC(hWnd, hDC);
2505 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
2506 ME_SetDefaultCharFormat(editor, &fmt);
2507
2508 ME_CommitUndo(editor);
2509 if (bRepaint)
2510 ME_RewrapRepaint(editor);
2511 return 0;
2512 }
2513 case WM_SETTEXT:
2514 {
2515 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2516 if (lParam)
2517 {
2518 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
2519 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
2520 {
2521 /* Undocumented: WM_SETTEXT supports RTF text */
2522 ME_StreamInRTFString(editor, 0, (char *)lParam);
2523 }
2524 else
2525 {
2526 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
2527 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
2528 if (lstrlenW(wszText) > 0)
2529 {
2530 int len = -1;
2531
2532 /* uses default style! */
2533 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2534 {
2535 WCHAR * p;
2536
2537 p = wszText;
2538 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
2539 len = p - wszText;
2540 }
2541 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2542 }
2543 ME_EndToUnicode(unicode, wszText);
2544 }
2545 }
2546 else
2547 TRACE("WM_SETTEXT - NULL\n");
2548 if (editor->AutoURLDetect_bEnable)
2549 {
2550 ME_UpdateLinkAttribute(editor, 0, -1);
2551 }
2552 ME_SetSelection(editor, 0, 0);
2553 editor->nModifyStep = 0;
2554 ME_CommitUndo(editor);
2555 ME_EmptyUndoStack(editor);
2556 ME_UpdateRepaint(editor);
2557 return 1;
2558 }
2559 case EM_CANPASTE:
2560 {
2561 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2562 if (IsClipboardFormatAvailable(nRTFFormat))
2563 return TRUE;
2564 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2565 return TRUE;
2566 return FALSE;
2567 }
2568 case WM_PASTE:
2569 {
2570 DWORD dwFormat = 0;
2571 EDITSTREAM es;
2572 ME_GlobalDestStruct gds;
2573 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2574 UINT cf = 0;
2575
2576 if (IsClipboardFormatAvailable(nRTFFormat))
2577 cf = nRTFFormat, dwFormat = SF_RTF;
2578 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2579 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2580 else
2581 return 0;
2582
2583 if (!OpenClipboard(hWnd))
2584 return 0;
2585 gds.hData = GetClipboardData(cf);
2586 gds.nLength = 0;
2587 es.dwCookie = (DWORD)&gds;
2588 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2589 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2590
2591 CloseClipboard();
2592 return 0;
2593 }
2594 case WM_CUT:
2595 case WM_COPY:
2596 {
2597 LPDATAOBJECT dataObj = NULL;
2598 CHARRANGE range;
2599 HRESULT hr = S_OK;
2600
2601 if (editor->cPasswordMask)
2602 return 0; /* Copying or Cutting masked text isn't allowed */
2603
2604 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2605 if(editor->lpOleCallback)
2606 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2607 if(FAILED(hr) || !dataObj)
2608 hr = ME_GetDataObject(editor, &range, &dataObj);
2609 if(SUCCEEDED(hr)) {
2610 hr = OleSetClipboard(dataObj);
2611 IDataObject_Release(dataObj);
2612 }
2613 if (SUCCEEDED(hr) && msg == WM_CUT)
2614 {
2615 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
2616 ME_CommitUndo(editor);
2617 ME_UpdateRepaint(editor);
2618 }
2619 return 0;
2620 }
2621 case WM_GETTEXTLENGTH:
2622 {
2623 GETTEXTLENGTHEX how;
2624
2625 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
2626 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
2627 how.codepage = unicode ? 1200 : CP_ACP;
2628 return ME_GetTextLengthEx(editor, &how);
2629 }
2630 case EM_GETTEXTLENGTHEX:
2631 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2632 case WM_GETTEXT:
2633 {
2634 GETTEXTEX ex;
2635 LRESULT rc;
2636 LPSTR bufferA = NULL;
2637 LPWSTR bufferW = NULL;
2638
2639 if (unicode)
2640 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
2641 else
2642 bufferA = heap_alloc(wParam + 2);
2643
2644 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
2645 ex.flags = GT_USECRLF;
2646 ex.codepage = unicode ? 1200 : CP_ACP;
2647 ex.lpDefaultChar = NULL;
2648 ex.lpUsedDefChar = NULL;
2649 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2650
2651 if (unicode)
2652 {
2653 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
2654 if (lstrlenW(bufferW) >= wParam) rc = 0;
2655 }
2656 else
2657 {
2658 memcpy((LPSTR)lParam, bufferA, wParam);
2659 if (strlen(bufferA) >= wParam) rc = 0;
2660 }
2661 heap_free(bufferA);
2662 heap_free(bufferW);
2663 return rc;
2664 }
2665 case EM_GETTEXTEX:
2666 {
2667 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2668 int nStart, nCount; /* in chars */
2669
2670 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2671 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2672
2673 if (ex->flags & GT_SELECTION)
2674 {
2675 ME_GetSelection(editor, &nStart, &nCount);
2676 nCount -= nStart;
2677 }
2678 else
2679 {
2680 nStart = 0;
2681 nCount = 0x7fffffff;
2682 }
2683 if (ex->codepage == 1200)
2684 {
2685 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2686 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2687 }
2688 else
2689 {
2690 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2691 we can just take a bigger buffer? :)
2692 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
2693 occurs only in richedit 2.0 mode, in which line breaks have only one CR
2694 */
2695 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2696 LPWSTR buffer;
2697 DWORD buflen = ex->cb;
2698 LRESULT rc;
2699 DWORD flags = 0;
2700
2701 nCount = min(nCount, ex->cb - 1);
2702 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2703
2704 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2705 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
2706 if (rc) rc--; /* do not count 0 terminator */
2707
2708 heap_free(buffer);
2709 return rc;
2710 }
2711 }
2712 case EM_GETSELTEXT:
2713 {
2714 int from, to;
2715 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2716 ME_GetSelection(editor, &from, &to);
2717 tr.chrg.cpMin = from;
2718 tr.chrg.cpMax = to;
2719 tr.lpstrText = (WCHAR *)lParam;
2720 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2721 }
2722 case EM_GETSCROLLPOS:
2723 {
2724 POINT *point = (POINT *)lParam;
2725 point->x = 0; /* FIXME side scrolling not implemented */
2726 point->y = ME_GetYScrollPos(editor);
2727 return 1;
2728 }
2729 case EM_GETTEXTRANGE:
2730 {
2731 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2732 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2733 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2734 editor->bEmulateVersion10, ME_GetTextLength(editor));
2735 if (unicode)
2736 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
2737 else
2738 {
2739 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2740 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2741 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
2742 /* FIXME this is a potential security hole (buffer overrun)
2743 if you know more about wchar->mbyte conversion please explain
2744 */
2745 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2746 FREE_OBJ(p);
2747 return nChars;
2748 }
2749 }
2750 case EM_GETLINE:
2751 {
2752 ME_DisplayItem *run;
2753 const unsigned int nMaxChars = *(WORD *) lParam;
2754 unsigned int nCharsLeft = nMaxChars;
2755 char *dest = (char *) lParam;
2756 BOOL wroteNull = FALSE;
2757
2758 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2759 unicode ? "Unicode" : "Ansi");
2760
2761 run = ME_FindRowWithNumber(editor, wParam);
2762 if (run == NULL)
2763 return 0;
2764
2765 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2766 && !(run->member.run.nFlags & MERF_ENDPARA))
2767 {
2768 unsigned int nCopy;
2769 ME_String *strText;
2770 if (run->type != diRun)
2771 break;
2772 strText = run->member.run.strText;
2773 nCopy = min(nCharsLeft, strText->nLen);
2774
2775 if (unicode)
2776 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2777 else
2778 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2779 nCharsLeft, NULL, NULL);
2780 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2781 nCharsLeft -= nCopy;
2782 }
2783
2784 /* append line termination, space allowing */
2785 if (nCharsLeft > 0)
2786 {
2787 if (run && (run->member.run.nFlags & MERF_ENDPARA))
2788 {
2789 unsigned int i;
2790 /* Write as many \r as encoded in end-of-paragraph, space allowing */
2791 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
2792 {
2793 *((WCHAR *)dest) = '\r';
2794 dest += unicode ? sizeof(WCHAR) : 1;
2795 }
2796 /* Write as many \n as encoded in end-of-paragraph, space allowing */
2797 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
2798 {
2799 *((WCHAR *)dest) = '\n';
2800 dest += unicode ? sizeof(WCHAR) : 1;
2801 }
2802 }
2803 if (nCharsLeft > 0)
2804 {
2805 if (unicode)
2806 *((WCHAR *)dest) = '\0';
2807 else
2808 *dest = '\0';
2809 nCharsLeft--;
2810 wroteNull = TRUE;
2811 }
2812 }
2813
2814 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
2815 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
2816 }
2817 case EM_GETLINECOUNT:
2818 {
2819 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2820 int nRows = 0;
2821
2822 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
2823
2824 while (item != editor->pBuffer->pLast)
2825 {
2826 assert(item->type == diParagraph);
2827 prev_para = ME_FindItemBack(item, diRun);
2828 if (prev_para) {
2829 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
2830 }
2831 nRows += item->member.para.nRows;
2832 item = item->member.para.next_para;
2833 }
2834 last_para = ME_FindItemBack(item, diRun);
2835 assert(last_para);
2836 assert(last_para->member.run.nFlags & MERF_ENDPARA);
2837 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
2838 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
2839 {
2840 /* In 1.0 emulation, the last solitary \r at the very end of the text
2841 (if one exists) is NOT a line break.
2842 FIXME: this is an ugly hack. This should have a more regular model. */
2843 nRows--;
2844 }
2845
2846 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2847 return max(1, nRows);
2848 }
2849 case EM_LINEFROMCHAR:
2850 {
2851 if (wParam == -1)
2852 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2853 else
2854 return ME_RowNumberFromCharOfs(editor, wParam);
2855 }
2856 case EM_EXLINEFROMCHAR:
2857 {
2858 if (lParam == -1)
2859 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2860 else
2861 return ME_RowNumberFromCharOfs(editor, lParam);
2862 }
2863 case EM_LINEINDEX:
2864 {
2865 ME_DisplayItem *item, *para;
2866 int nCharOfs;
2867
2868 if (wParam == -1)
2869 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2870 else
2871 item = ME_FindRowWithNumber(editor, wParam);
2872 if (!item)
2873 return -1;
2874 para = ME_GetParagraph(item);
2875 item = ME_FindItemFwd(item, diRun);
2876 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2877 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2878 return nCharOfs;
2879 }
2880 case EM_LINELENGTH:
2881 {
2882 ME_DisplayItem *item, *item_end;
2883 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2884
2885 if (wParam > ME_GetTextLength(editor))
2886 return 0;
2887 if (wParam == -1)
2888 {
2889 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2890 return 0;
2891 }
2892 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2893 item = ME_RowStart(item);
2894 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2895 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2896 if (item_end->type == diStartRow)
2897 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2898 else
2899 {
2900 ME_DisplayItem *endPara;
2901
2902 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
2903 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
2904 endPara = ME_FindItemBack(endPara, diRun);
2905 assert(endPara);
2906 assert(endPara->type == diRun);
2907 assert(endPara->member.run.nFlags & MERF_ENDPARA);
2908 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
2909 }
2910 nChars = nNextLineOfs - nThisLineOfs;
2911 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2912 return nChars;
2913 }
2914 case EM_EXLIMITTEXT:
2915 {
2916 if ((int)lParam < 0)
2917 return 0;
2918 if (lParam == 0)
2919 editor->nTextLimit = 65536;
2920 else
2921 editor->nTextLimit = (int) lParam;
2922 return 0;
2923 }
2924 case EM_LIMITTEXT:
2925 {
2926 if (wParam == 0)
2927 editor->nTextLimit = 65536;
2928 else
2929 editor->nTextLimit = (int) wParam;
2930 return 0;
2931 }
2932 case EM_GETLIMITTEXT:
2933 {
2934 return editor->nTextLimit;
2935 }
2936 case EM_FINDTEXT:
2937 {
2938 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2939 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2940 WCHAR *tmp;
2941 LRESULT r;
2942
2943 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2944 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2945 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2946 FREE_OBJ( tmp );
2947 return r;
2948 }
2949 case EM_FINDTEXTEX:
2950 {
2951 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2952 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2953 WCHAR *tmp;
2954 LRESULT r;
2955
2956 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2957 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
2958 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
2959 FREE_OBJ( tmp );
2960 return r;
2961 }
2962 case EM_FINDTEXTW:
2963 {
2964 FINDTEXTW *ft = (FINDTEXTW *)lParam;
2965 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
2966 }
2967 case EM_FINDTEXTEXW:
2968 {
2969 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
2970 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
2971 }
2972 case EM_GETZOOM:
2973 if (!wParam || !lParam)
2974 return FALSE;
2975 *(int *)wParam = editor->nZoomNumerator;
2976 *(int *)lParam = editor->nZoomDenominator;
2977 return TRUE;
2978 case EM_SETZOOM:
2979 return ME_SetZoom(editor, wParam, lParam);
2980 case EM_CHARFROMPOS:
2981 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
2982 case EM_POSFROMCHAR:
2983 {
2984 ME_DisplayItem *pRun;
2985 int nCharOfs, nOffset, nLength;
2986 POINTL pt = {0,0};
2987 SCROLLINFO si;
2988
2989 nCharOfs = wParam;
2990 /* detect which API version we're dealing with */
2991 if (wParam >= 0x40000)
2992 nCharOfs = lParam;
2993 nLength = ME_GetTextLength(editor);
2994
2995 if (nCharOfs < nLength) {
2996 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
2997 assert(pRun->type == diRun);
2998 pt.y = pRun->member.run.pt.y;
2999 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3000 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
3001 } else {
3002 pt.x = 0;
3003 pt.y = editor->pBuffer->pLast->member.para.nYPos;
3004 }
3005 pt.x += editor->selofs;
3006
3007 si.cbSize = sizeof(si);
3008 si.fMask = SIF_POS;
3009 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
3010 si.cbSize = sizeof(si);
3011 si.fMask = SIF_POS;
3012 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3013
3014 if (wParam >= 0x40000) {
3015 *(POINTL *)wParam = pt;
3016 }
3017 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3018 }
3019 case WM_CREATE:
3020 GetClientRect(hWnd, &editor->rcFormat);
3021 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
3022 { /* Squelch the default horizontal scrollbar it would make */
3023 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3024 }
3025 ME_CommitUndo(editor);
3026 ME_WrapMarkedParagraphs(editor);
3027 ME_MoveCaret(editor);
3028 return 0;
3029 case WM_DESTROY:
3030 ME_DestroyEditor(editor);
3031 SetWindowLongPtrW(hWnd, 0, 0);
3032 return 0;
3033 case WM_LBUTTONDBLCLK:
3034 case WM_LBUTTONDOWN:
3035 {
3036 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3037 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3038 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3039 return 0;
3040 SetFocus(hWnd);
3041 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3042 ME_CalculateClickCount(hWnd, msg, wParam, lParam));
3043 SetCapture(hWnd);
3044 ME_LinkNotify(editor,msg,wParam,lParam);
3045 if (!ME_SetCursor(editor, LOWORD(lParam))) goto do_default;
3046 break;
3047 }
3048 case WM_MOUSEMOVE:
3049 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3050 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3051 return 0;
3052 if (GetCapture() == hWnd)
3053 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3054 ME_LinkNotify(editor,msg,wParam,lParam);
3055 if (!ME_SetCursor(editor, LOWORD(lParam))) goto do_default;
3056 break;
3057 case WM_LBUTTONUP:
3058 if (GetCapture() == hWnd)
3059 ReleaseCapture();
3060 if (editor->nSelectionType == stDocument)
3061 editor->nSelectionType = stPosition;
3062 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3063 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3064 return 0;
3065 else
3066 {
3067 BOOL ret;
3068 ret = ME_SetCursor(editor, LOWORD(lParam));
3069 ME_LinkNotify(editor,msg,wParam,lParam);
3070 if (!ret) goto do_default;
3071 }
3072 break;
3073 case WM_RBUTTONUP:
3074 case WM_RBUTTONDOWN:
3075 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3076 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3077 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3078 return 0;
3079 goto do_default;
3080 case WM_CONTEXTMENU:
3081 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3082 goto do_default;
3083 break;
3084 case WM_PAINT:
3085 if (editor->bRedraw)
3086 {
3087 HDC hDC;
3088 PAINTSTRUCT ps;
3089
3090 hDC = BeginPaint(hWnd, &ps);
3091 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3092 EndPaint(hWnd, &ps);
3093 }
3094 break;
3095 case WM_SETFOCUS:
3096 editor->bHaveFocus = TRUE;
3097 ME_ShowCaret(editor);
3098 ME_SendOldNotify(editor, EN_SETFOCUS);
3099 return 0;
3100 case WM_KILLFOCUS:
3101 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3102 editor->bHaveFocus = FALSE;
3103 ME_HideCaret(editor);
3104 ME_SendOldNotify(editor, EN_KILLFOCUS);
3105 return 0;
3106 case WM_ERASEBKGND:
3107 {
3108 if (editor->bRedraw)
3109 {
3110 HDC hDC = (HDC)wParam;
3111 RECT rc;
3112 if (GetUpdateRect(hWnd,&rc,TRUE))
3113 {
3114 FillRect(hDC, &rc, editor->hbrBackground);
3115 }
3116 }
3117 return 1;
3118 }
3119 case WM_COMMAND:
3120 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3121 return 0;
3122 case WM_KEYUP:
3123 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3124 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3125 return 0;
3126 goto do_default;
3127 case WM_KEYDOWN:
3128 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3129 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3130 return 0;
3131 if (ME_KeyDown(editor, LOWORD(wParam)))
3132 return 0;
3133 goto do_default;
3134 case WM_CHAR:
3135 {
3136 WCHAR wstr;
3137
3138 if (unicode)
3139 wstr = (WCHAR)wParam;
3140 else
3141 {
3142 CHAR charA = wParam;
3143 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3144 }
3145
3146 switch (wstr)
3147 {
3148 case 1: /* Ctrl-A */
3149 ME_SetSelection(editor, 0, -1);
3150 return 0;
3151 case 3: /* Ctrl-C */
3152 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
3153 return 0;
3154 }
3155
3156 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3157 MessageBeep(MB_ICONERROR);
3158 return 0; /* FIXME really 0 ? */
3159 }
3160
3161 switch (wstr)
3162 {
3163 case 22: /* Ctrl-V */
3164 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
3165 return 0;
3166 case 24: /* Ctrl-X */
3167 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
3168 return 0;
3169 case 25: /* Ctrl-Y */
3170 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
3171 return 0;
3172 case 26: /* Ctrl-Z */
3173 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
3174 return 0;
3175 }
3176 if (((unsigned)wstr)>=' '
3177 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3178 || wstr=='\t') {
3179 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3180 /* WM_CHAR is restricted to nTextLimit */
3181 int from, to;
3182 ME_GetSelection(editor, &from, &to);
3183 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3184 {
3185 ME_Style *style = ME_GetInsertStyle(editor, 0);
3186 ME_SaveTempStyle(editor);
3187 ME_ContinueCoalescingTransaction(editor);
3188 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3189 ME_InsertEndRowFromCursor(editor, 0);
3190 else
3191 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3192 ME_ReleaseStyle(style);
3193 ME_CommitCoalescingUndo(editor);
3194 }
3195
3196 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3197
3198 ME_UpdateRepaint(editor);
3199 }
3200 return 0;
3201 }
3202 case EM_STOPGROUPTYPING:
3203 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3204 return 0;
3205 case EM_SCROLL: /* fall through */
3206 case WM_VSCROLL:
3207 {
3208 int origNPos;
3209 int lineHeight;
3210
3211 origNPos = ME_GetYScrollPos(editor);
3212 lineHeight = 24;
3213
3214 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3215 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3216 if (lineHeight <= 0) lineHeight = 24;
3217
3218 switch(LOWORD(wParam))
3219 {
3220 case SB_LINEUP:
3221 ME_ScrollUp(editor,lineHeight);
3222 break;
3223 case SB_LINEDOWN:
3224 ME_ScrollDown(editor,lineHeight);
3225 break;
3226 case SB_PAGEUP:
3227 ME_ScrollUp(editor,editor->sizeWindow.cy);
3228 break;
3229 case SB_PAGEDOWN:
3230 ME_ScrollDown(editor,editor->sizeWindow.cy);
3231 break;
3232 case SB_THUMBTRACK:
3233 case SB_THUMBPOSITION:
3234 ME_ScrollAbs(editor,HIWORD(wParam));
3235 break;
3236 }
3237 if (msg == EM_SCROLL)
3238 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
3239 break;
3240 }
3241 case WM_MOUSEWHEEL:
3242 {
3243 int gcWheelDelta;
3244 UINT pulScrollLines;
3245
3246 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3247 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3248 return 0;
3249
3250 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
3251 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
3252
3253 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
3254 {
3255 /* FIXME follow the original */
3256 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
3257 }
3258 break;
3259 }
3260 case EM_GETRECT:
3261 {
3262 *((RECT *)lParam) = editor->rcFormat;
3263 return 0;
3264 }
3265 case EM_SETRECT:
3266 case EM_SETRECTNP:
3267 {
3268 if (lParam)
3269 {
3270 RECT *rc = (RECT *)lParam;
3271
3272 if (wParam)
3273 {
3274 editor->rcFormat.left += rc->left;
3275 editor->rcFormat.top += rc->top;
3276 editor->rcFormat.right += rc->right;
3277 editor->rcFormat.bottom += rc->bottom;
3278 }
3279 else
3280 {
3281 editor->rcFormat = *rc;
3282 }
3283 }
3284 else
3285 {
3286 GetClientRect(hWnd, &editor->rcFormat);
3287 }
3288 if (msg != EM_SETRECTNP)
3289 ME_RewrapRepaint(editor);
3290 return 0;
3291 }
3292 case EM_REQUESTRESIZE:
3293 ME_SendRequestResize(editor, TRUE);
3294 return 0;
3295 case WM_SETREDRAW:
3296 if ((editor->bRedraw = wParam))
3297 ME_RewrapRepaint(editor);
3298 return 0;
3299 case WM_SIZE:
3300 {
3301 GetClientRect(hWnd, &editor->rcFormat);
3302 ME_RewrapRepaint(editor);
3303 return DefWindowProcW(hWnd, msg, wParam, lParam);
3304 }
3305 /* IME messages to make richedit controls IME aware */
3306 case WM_IME_SETCONTEXT:
3307 case WM_IME_CONTROL:
3308 case WM_IME_SELECT:
3309 case WM_IME_COMPOSITIONFULL:
3310 return 0;
3311 case WM_IME_STARTCOMPOSITION:
3312 {
3313 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
3314 ME_DeleteSelection(editor);
3315 ME_CommitUndo(editor);
3316 ME_UpdateRepaint(editor);
3317 return 0;
3318 }
3319 case WM_IME_COMPOSITION:
3320 {
3321 HIMC hIMC;
3322
3323 ME_Style *style = ME_GetInsertStyle(editor, 0);
3324 hIMC = ImmGetContext(hWnd);
3325 ME_DeleteSelection(editor);
3326 ME_CommitUndo(editor);
3327 ME_SaveTempStyle(editor);
3328 if (lParam & GCS_RESULTSTR)
3329 {
3330 LPWSTR lpCompStr = NULL;
3331 DWORD dwBufLen;
3332
3333 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
3334 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3335 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
3336 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3337 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3338 }
3339 else if (lParam & GCS_COMPSTR)
3340 {
3341 LPWSTR lpCompStr = NULL;
3342 DWORD dwBufLen;
3343
3344 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
3345 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3346 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
3347 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3348
3349 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3350 ME_SetSelection(editor,editor->imeStartIndex,
3351 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
3352 }
3353 ME_ReleaseStyle(style);
3354 ME_UpdateRepaint(editor);
3355 return 0;
3356 }
3357 case WM_IME_ENDCOMPOSITION:
3358 {
3359 ME_DeleteSelection(editor);
3360 editor->imeStartIndex=-1;
3361 return 0;
3362 }
3363 case EM_GETOLEINTERFACE:
3364 {
3365 LPVOID *ppvObj = (LPVOID*) lParam;
3366 return CreateIRichEditOle(editor, ppvObj);
3367 }
3368 case EM_GETPASSWORDCHAR:
3369 {
3370 return editor->cPasswordMask;
3371 }
3372 case EM_SETOLECALLBACK:
3373 if(editor->lpOleCallback)
3374 IUnknown_Release(editor->lpOleCallback);
3375 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
3376 if(editor->lpOleCallback)
3377 IUnknown_AddRef(editor->lpOleCallback);
3378 return TRUE;
3379 case EM_GETWORDBREAKPROC:
3380 return (LRESULT)editor->pfnWordBreak;
3381 case EM_SETWORDBREAKPROC:
3382 {
3383 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
3384
3385 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
3386 return (LRESULT)pfnOld;
3387 }
3388 case EM_SETTEXTMODE:
3389 {
3390 LRESULT ret;
3391 int mask = 0;
3392 int changes = 0;
3393 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
3394 if (!ret)
3395 {
3396 /*Check for valid wParam*/
3397 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
3398 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
3399 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
3400 return 1;
3401 else
3402 {
3403 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
3404 {
3405 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
3406 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
3407 }
3408 /*FIXME: Currently no support for undo level and code page options*/
3409 editor->mode = (editor->mode & (~mask)) | changes;
3410 return 0;
3411 }
3412 }
3413 return ret;
3414 }
3415 case EM_SETPASSWORDCHAR:
3416 {
3417 editor->cPasswordMask = wParam;
3418 ME_RewrapRepaint(editor);
3419 return 0;
3420 }
3421 case EM_SETTARGETDEVICE:
3422 if (wParam == 0)
3423 {
3424 BOOL new = (lParam == 0);
3425 if (editor->bWordWrap != new)
3426 {
3427 editor->bWordWrap = new;
3428 ME_RewrapRepaint(editor);
3429 }
3430 }
3431 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
3432 break;
3433 default:
3434 do_default:
3435 return DefWindowProcW(hWnd, msg, wParam, lParam);
3436 }
3437 return 0L;
3438 }
3439
3440 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3441 {
3442 BOOL unicode = TRUE;
3443
3444 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
3445 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
3446 unicode = FALSE;
3447
3448 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
3449 }
3450
3451 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3452 {
3453 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
3454 }
3455
3456 /******************************************************************
3457 * RichEditANSIWndProc (RICHED20.10)
3458 */
3459 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3460 {
3461 return RichEditWndProcA(hWnd, msg, wParam, lParam);
3462 }
3463
3464 /******************************************************************
3465 * RichEdit10ANSIWndProc (RICHED20.9)
3466 */
3467 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3468 {
3469 LRESULT result;
3470
3471 /* FIXME: this is NOT the same as 2.0 version */
3472 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
3473 if (msg == WM_NCCREATE)
3474 {
3475 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
3476
3477 editor->bEmulateVersion10 = TRUE;
3478 editor->pBuffer->pLast->member.para.nCharOfs = 2;
3479 assert(editor->pBuffer->pLast->prev->type == diRun);
3480 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
3481 editor->pBuffer->pLast->prev->member.run.nLF = 1;
3482 }
3483 return result;
3484 }
3485
3486 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
3487 {
3488 HWND hWnd = editor->hWnd;
3489 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
3490 }
3491
3492 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
3493 {
3494 int x,y;
3495 ME_Cursor tmpCursor;
3496 int nCharOfs; /* The start of the clicked text. Absolute character offset */
3497
3498 ME_Run *tmpRun;
3499
3500 ENLINK info;
3501 x = (short)LOWORD(lParam);
3502 y = (short)HIWORD(lParam);
3503 nCharOfs = ME_CharFromPos(editor, x, y);
3504 if (nCharOfs < 0) return;
3505
3506 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
3507 tmpRun = &tmpCursor.pRun->member.run;
3508
3509 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
3510 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
3511 { /* The clicked run has CFE_LINK set */
3512 info.nmhdr.hwndFrom = editor->hWnd;
3513 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
3514 info.nmhdr.code = EN_LINK;
3515 info.msg = msg;
3516 info.wParam = wParam;
3517 info.lParam = lParam;
3518 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
3519 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
3520 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
3521 }
3522 }
3523
3524 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
3525 {
3526 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
3527 int i = 0;
3528
3529 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
3530 item = item->member.para.next_para;
3531 if (!item)
3532 return 0;
3533 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
3534 item = item->member.para.next_para;
3535 i++;
3536 }
3537 return i;
3538 }
3539
3540
3541 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
3542 {
3543 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
3544 int nWritten = 0;
3545 WCHAR *pStart = buffer;
3546
3547 if (!item) {
3548 *buffer = 0;
3549 return 0;
3550 }
3551
3552 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
3553 if (editor->bEmulateVersion10) bCRLF = 0;
3554
3555 if (nStart)
3556 {
3557 int nLen = ME_StrLen(item->member.run.strText) - nStart;
3558 if (nLen > nChars)
3559 nLen = nChars;
3560 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
3561 nChars -= nLen;
3562 nWritten += nLen;
3563 buffer += nLen;
3564 if (!nChars) {
3565 *buffer = 0;
3566 return nWritten;
3567 }
3568 nStart = 0;
3569 item = ME_FindItemFwd(item, diRun);
3570 }
3571
3572 while(nChars && item)
3573 {
3574 int nLen = ME_StrLen(item->member.run.strText);
3575 if (item->member.run.nFlags & MERF_ENDPARA)
3576 nLen = item->member.run.nCR + item->member.run.nLF;
3577 if (nLen > nChars)
3578 nLen = nChars;
3579
3580 if (item->member.run.nFlags & MERF_ENDPARA)
3581 {
3582 if (!ME_FindItemFwd(item, diRun))
3583 /* No '\r' is appended to the last paragraph. */
3584 nLen = 0;
3585 else if (bCRLF && nChars == 1) {
3586 nLen = 0;
3587 nChars = 0;
3588 } else {
3589 if (bCRLF)
3590 {
3591 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
3592 assert(nLen == 1);
3593 *buffer++ = '\r';
3594 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
3595 nWritten++;
3596 }
3597 else
3598 {
3599 int i, j;
3600
3601 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
3602 i = 0;
3603 while (nChars - i > 0 && i < item->member.run.nCR)
3604 {
3605 buffer[i] = '\r'; i++;
3606 }
3607 j = 0;
3608 while (nChars - i - j > 0 && j < item->member.run.nLF)
3609 {
3610 buffer[i+j] = '\n'; j++;
3611 }
3612 }
3613 }
3614 }
3615 else
3616 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
3617 nChars -= nLen;
3618 nWritten += nLen;
3619 buffer += nLen;
3620
3621 if (!nChars)
3622 {
3623 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3624 *buffer = 0;
3625 return nWritten;
3626 }
3627 item = ME_FindItemFwd(item, diRun);
3628 }
3629 *buffer = 0;
3630 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3631 return nWritten;
3632 }
3633
3634 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
3635 {
3636 WNDCLASSW wcW;
3637 WNDCLASSA wcA;
3638
3639 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3640 wcW.lpfnWndProc = RichEditWndProcW;
3641 wcW.cbClsExtra = 0;
3642 wcW.cbWndExtra = sizeof(ME_TextEditor *);
3643 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
3644 wcW.hIcon = NULL;
3645 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3646 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3647 wcW.lpszMenuName = NULL;
3648
3649 if (is_version_nt())
3650 {
3651 wcW.lpszClassName = RichEdit20W;
3652 if (!RegisterClassW(&wcW)) return FALSE;
3653 wcW.lpszClassName = RichEdit50W;
3654 if (!RegisterClassW(&wcW)) return FALSE;
3655 }
3656 else
3657 {
3658 /* WNDCLASSA/W have the same layout */
3659 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
3660 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3661 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
3662 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3663 }
3664
3665 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3666 wcA.lpfnWndProc = RichEditWndProcA;
3667 wcA.cbClsExtra = 0;
3668 wcA.cbWndExtra = sizeof(ME_TextEditor *);
3669 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
3670 wcA.hIcon = NULL;
3671 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3672 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3673 wcA.lpszMenuName = NULL;
3674 wcA.lpszClassName = "RichEdit20A";
3675 if (!RegisterClassA(&wcA)) return FALSE;
3676 wcA.lpszClassName = "RichEdit50A";
3677 if (!RegisterClassA(&wcA)) return FALSE;
3678
3679 return TRUE;
3680 }
3681
3682 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3683 /* FIXME: Not implemented */
3684 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3685 hWnd, msg, get_msg_name(msg), wParam, lParam);
3686 return DefWindowProcW(hWnd, msg, wParam, lParam);
3687 }
3688
3689 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3690 /* FIXME: Not implemented */
3691 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3692 hWnd, msg, get_msg_name(msg), wParam, lParam);
3693 return DefWindowProcW(hWnd, msg, wParam, lParam);
3694 }
3695
3696 /******************************************************************
3697 * REExtendedRegisterClass (RICHED20.8)
3698 *
3699 * FIXME undocumented
3700 * Need to check for errors and implement controls and callbacks
3701 */
3702 LRESULT WINAPI REExtendedRegisterClass(void)
3703 {
3704 WNDCLASSW wcW;
3705 UINT result;
3706
3707 FIXME("semi stub\n");
3708
3709 wcW.cbClsExtra = 0;
3710 wcW.cbWndExtra = 4;
3711 wcW.hInstance = NULL;
3712 wcW.hIcon = NULL;
3713 wcW.hCursor = NULL;
3714 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
3715 wcW.lpszMenuName = NULL;
3716
3717 if (!ME_ListBoxRegistered)
3718 {
3719 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
3720 wcW.lpfnWndProc = REListWndProc;
3721 wcW.lpszClassName = REListBox20W;
3722 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
3723 }
3724
3725 if (!ME_ComboBoxRegistered)
3726 {
3727 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
3728 wcW.lpfnWndProc = REComboWndProc;
3729 wcW.lpszClassName = REComboBox20W;
3730 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
3731 }
3732
3733 result = 0;
3734 if (ME_ListBoxRegistered)
3735 result += 1;
3736 if (ME_ComboBoxRegistered)
3737 result += 2;
3738
3739 return result;
3740 }
3741
3742 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
3743 {
3744 struct prefix_s {
3745 const char *text;
3746 int length;
3747 } prefixes[12] = {
3748 {"http:", 5},
3749 {"file:", 6},
3750 {"mailto:", 8},
3751 {"ftp:", 5},
3752 {"https:", 7},
3753 {"gopher:", 8},
3754 {"nntp:", 6},
3755 {"prospero:", 10},
3756 {"telnet:", 8},
3757 {"news:", 6},
3758 {"wais:", 6},
3759 {"www.", 5}
3760 };
3761 CHARRANGE ins_pt;
3762 int curf_ef, link_ef, def_ef;
3763 int cur_prefx, prefx_cnt;
3764 int sel_min, sel_max;
3765 int car_pos = 0;
3766 int text_pos=-1;
3767 int URLmin, URLmax = 0;
3768 FINDTEXTA ft;
3769 CHARFORMAT2W cur_format;
3770 CHARFORMAT2W default_format;
3771 CHARFORMAT2W link;
3772 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3773 sel_min = ins_pt.cpMin;
3774 sel_max = ins_pt.cpMax;
3775 if (sel_min==sel_max)
3776 car_pos = sel_min;
3777 if (sel_min!=sel_max)
3778 car_pos = ME_GetTextLength(editor)+1;
3779 cur_format.cbSize = sizeof(cur_format);
3780 default_format.cbSize = sizeof(default_format);
3781 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3782 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3783 link.cbSize = sizeof(link);
3784 link.dwMask = CFM_LINK;
3785 link.dwEffects = CFE_LINK;
3786 curf_ef = cur_format.dwEffects & link.dwEffects;
3787 def_ef = default_format.dwEffects & link.dwEffects;
3788 link_ef = link.dwEffects & link.dwEffects;
3789 if (curf_ef == link_ef)
3790 {
3791 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3792 {
3793 ME_SetSelection(editor, car_pos, car_pos);
3794 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3795 text_pos=-1;
3796 return 0;
3797 }
3798 }
3799 if (curf_ef == def_ef)
3800 {
3801 cur_prefx = 0;
3802 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3803 while (cur_prefx<=prefx_cnt)
3804 {
3805 if (text_pos == -1)
3806 {
3807 ft.lpstrText = prefixes[cur_prefx].text;
3808 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3809 URLmax=max(0, car_pos);
3810 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3811 {
3812 URLmax = ME_GetTextLength(editor)+1;
3813 }
3814 ft.chrg.cpMin = URLmin;
3815 ft.chrg.cpMax = URLmax;
3816 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3817 cur_prefx++;
3818 }
3819 if (text_pos != -1)
3820 {
3821 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3822 ME_RewrapRepaint(editor);
3823 break;
3824 }
3825 }
3826 }
3827 return 0;
3828 }
3829
3830
3831 static BOOL isurlspecial(WCHAR c)
3832 {
3833 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
3834 return strchrW( special_chars, c ) != NULL;
3835 }
3836
3837 /**
3838 * This proc takes a selection, and scans it forward in order to select the span
3839 * of a possible URL candidate. A possible URL candidate must start with isalnum
3840 * or one of the following special characters: *|/\+%#@ and must consist entirely
3841 * of the characters allowed to start the URL, plus : (colon) which may occur
3842 * at most once, and not at either end.
3843 *
3844 * sel_max == -1 indicates scan to end of text.
3845 */
3846 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
3847 int * candidate_min, int * candidate_max)
3848 {
3849 ME_DisplayItem * item;
3850 ME_DisplayItem * para;
3851 int nStart;
3852 BOOL foundColon = FALSE;
3853 WCHAR lastAcceptedChar = '\0';
3854
3855 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
3856
3857 *candidate_min = *candidate_max = -1;
3858 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
3859 if (!item) return FALSE;
3860 TRACE("nStart = %d\n", nStart);
3861 para = ME_GetParagraph(item);
3862 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3863 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
3864 {
3865 ME_DisplayItem * next_item;
3866
3867 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
3868 /* Find start of candidate */
3869 if (*candidate_min == -1) {
3870 while (nStart < ME_StrLen(item->member.run.strText) &&
3871 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3872 isurlspecial(item->member.run.strText->szData[nStart]))) {
3873 nStart++;
3874 }
3875 if (nStart < ME_StrLen(item->member.run.strText) &&
3876 (isalnumW(item->member.run.strText->szData[nStart]) ||
3877 isurlspecial(item->member.run.strText->szData[nStart]))) {
3878 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3879 lastAcceptedChar = item->member.run.strText->szData[nStart];
3880 nStart++;
3881 }
3882 }
3883
3884 /* Find end of candidate */
3885 if (*candidate_min >= 0) {
3886 while (nStart < ME_StrLen(item->member.run.strText) &&
3887 (isalnumW(item->member.run.strText->szData[nStart]) ||
3888 isurlspecial(item->member.run.strText->szData[nStart]) ||
3889 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
3890 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
3891 lastAcceptedChar = item->member.run.strText->szData[nStart];
3892 nStart++;
3893 }
3894 if (nStart < ME_StrLen(item->member.run.strText) &&
3895 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3896 isurlspecial(item->member.run.strText->szData[nStart]) )) {
3897 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3898 nStart++;
3899 if (lastAcceptedChar == ':') (*candidate_max)--;
3900 return TRUE;
3901 }
3902 }
3903 } else {
3904 /* End of paragraph: skip it if before candidate span, or terminates
3905 current active span */
3906 if (*candidate_min >= 0) {
3907 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
3908 if (lastAcceptedChar == ':') (*candidate_max)--;
3909 return TRUE;
3910 }
3911 }
3912
3913 /* Reaching this point means no span was found, so get next span */
3914 next_item = ME_FindItemFwd(item, diRun);
3915 if (!next_item) {
3916 if (*candidate_min >= 0) {
3917 /* There are no further runs, so take end of text as end of candidate */
3918 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3919 if (lastAcceptedChar == ':') (*candidate_max)--;
3920 return TRUE;
3921 }
3922 }
3923 item = next_item;
3924 para = ME_GetParagraph(item);
3925 nStart = 0;
3926 }
3927
3928 if (item) {
3929 if (*candidate_min >= 0) {
3930 /* There are no further runs, so take end of text as end of candidate */
3931 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3932 if (lastAcceptedChar == ':') (*candidate_max)--;
3933 return TRUE;
3934 }
3935 }
3936 return FALSE;
3937 }
3938
3939 /**
3940 * This proc evaluates the selection and returns TRUE if it can be considered an URL
3941 */
3942 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
3943 {
3944 struct prefix_s {
3945 const char *text;
3946 int length;
3947 } prefixes[12] = {
3948 /* Code below depends on these being in decreasing length order! */
3949 {"prospero:", 10},
3950 {"telnet:", 8},
3951 {"gopher:", 8},
3952 {"mailto:", 8},
3953 {"https:", 7},
3954 {"file:", 6},
3955 {"news:", 6},
3956 {"wais:", 6},
3957 {"nntp:", 6},
3958 {"http:", 5},
3959 {"www.", 5},
3960 {"ftp:", 5},
3961 };
3962 LPWSTR bufferW = NULL;
3963 WCHAR bufW[32];
3964 int i;
3965
3966 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3967 assert(sel_min <= sel_max);
3968 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
3969 {
3970 if (sel_max - sel_min < prefixes[i].length) continue;
3971 if (bufferW == NULL) {
3972 bufferW = (LPWSTR)heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
3973 }
3974 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, strlen(prefixes[i].text)), 0);
3975 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
3976 if (!lstrcmpW(bufW, bufferW))
3977 {
3978 heap_free(bufferW);
3979 return TRUE;
3980 }
3981 }
3982 heap_free(bufferW);
3983 return FALSE;
3984 }
3985
3986 /**
3987 * This proc walks through the indicated selection and evaluates whether each
3988 * section identified by ME_FindNextURLCandidate and in-between sections have
3989 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
3990 * not what it is supposed to be, this proc sets or unsets it as appropriate.
3991 *
3992 * Returns TRUE if at least one section was modified.
3993 */
3994 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
3995 {
3996 BOOL modified = FALSE;
3997 int cMin, cMax;
3998
3999 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4000 do
4001 {
4002 int beforeURL[2];
4003 int inURL[2];
4004 CHARFORMAT2W link;
4005
4006 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4007 {
4008 /* Section before candidate is not an URL */
4009 beforeURL[0] = sel_min;
4010 beforeURL[1] = cMin;
4011
4012 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4013 {
4014 inURL[0] = cMin; inURL[1] = cMax;
4015 }
4016 else
4017 {
4018 beforeURL[1] = cMax;
4019 inURL[0] = inURL[1] = -1;
4020 }
4021 sel_min = cMax;
4022 }
4023 else
4024 {
4025 /* No more candidates until end of selection */
4026 beforeURL[0] = sel_min;
4027 beforeURL[1] = sel_max;
4028 inURL[0] = inURL[1] = -1;
4029 sel_min = sel_max;
4030 }
4031
4032 if (beforeURL[0] < beforeURL[1])
4033 {
4034 /* CFE_LINK effect should be consistently unset */
4035 link.cbSize = sizeof(link);
4036 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4037 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4038 {
4039 /* CFE_LINK must be unset from this range */
4040 memset(&link, 0, sizeof(CHARFORMAT2W));
4041 link.cbSize = sizeof(link);
4042 link.dwMask = CFM_LINK;
4043 link.dwEffects = 0;
4044 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4045 modified = TRUE;
4046 }
4047 }
4048 if (inURL[0] < inURL[1])
4049 {
4050 /* CFE_LINK effect should be consistently set */
4051 link.cbSize = sizeof(link);
4052 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4053 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4054 {
4055 /* CFE_LINK must be set on this range */
4056 memset(&link, 0, sizeof(CHARFORMAT2W));
4057 link.cbSize = sizeof(link);
4058 link.dwMask = CFM_LINK;
4059 link.dwEffects = CFE_LINK;
4060 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4061 modified = TRUE;
4062 }
4063 }
4064 } while (sel_min < sel_max);
4065 return modified;
4066 }
4067
4068 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4069 {
4070 ME_DisplayItem * startPara, * endPara;
4071 ME_DisplayItem * item;
4072 int dummy;
4073 int from, to;
4074
4075 ME_GetSelection(editor, &from, &to);
4076 if (from > to) from ^= to, to ^=from, from ^= to;
4077 startPara = NULL; endPara = NULL;
4078
4079 /* Find paragraph previous to the one that contains start cursor */
4080 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4081 if (item) {
4082 startPara = ME_FindItemBack(item, diParagraph);
4083 item = ME_FindItemBack(startPara, diParagraph);
4084 if (item) startPara = item;
4085 }
4086
4087 /* Find paragraph that contains end cursor */
4088 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4089 if (item) {
4090 endPara = ME_FindItemFwd(item, diParagraph);
4091 }
4092
4093 if (startPara && endPara) {
4094 ME_UpdateLinkAttribute(editor,
4095 startPara->member.para.nCharOfs,
4096 endPara->member.para.nCharOfs);
4097 } else if (startPara) {
4098 ME_UpdateLinkAttribute(editor,
4099 startPara->member.para.nCharOfs,
4100 -1);
4101 }
4102 }
Maarten's multimedia branch