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push 07a2b33f792746135ccf34a3b3e1dfb2a3c1e823
[wine/hacks.git] / dlls / riched20 / editor.c
blob33310a135c436ad6f04d50977cc5791e978b4e3e
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_SETIMESTATUS
103 - EM_SETLANGOPTIONS 2.0
104 - EM_SETLIMITTEXT
105 - EM_SETMARGINS
106 + EM_SETMODIFY (not sure if implementation is correct)
107 - EM_SETOLECALLBACK
108 + EM_SETOPTIONS (partially implemented)
109 - EM_SETPALETTE 2.0
110 + EM_SETPARAFORMAT
111 + EM_SETPASSWORDCHAR 2.0
112 - EM_SETPUNCTUATION 1.0asian
113 + EM_SETREADONLY no beep on modification attempt
114 + EM_SETRECT
115 + EM_SETRECTNP (EM_SETRECT without repainting)
116 + EM_SETSEL
117 + EM_SETSCROLLPOS 3.0
118 - EM_SETTABSTOPS 3.0
119 - EM_SETTARGETDEVICE (partial)
120 + EM_SETTEXTEX 3.0 (proper style?)
121 - EM_SETTEXTMODE 2.0
122 - EM_SETTYPOGRAPHYOPTIONS 3.0
123 + EM_SETUNDOLIMIT 2.0
124 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
125 - EM_SETWORDBREAKPROCEX
126 - EM_SETWORDWRAPMODE 1.0asian
127 + EM_SETZOOM 3.0
128 + EM_SHOWSCROLLBAR 2.0
129 + EM_STOPGROUPTYPING 2.0
130 + EM_STREAMIN
131 + EM_STREAMOUT
132 + EM_UNDO
133 + WM_CHAR
134 + WM_CLEAR
135 + WM_COPY
136 + WM_CUT
137 + WM_GETDLGCODE (the current implementation is incomplete)
138 + WM_GETTEXT (ANSI&Unicode)
139 + WM_GETTEXTLENGTH (ANSI version sucks)
140 + WM_PASTE
141 + WM_SETFONT
142 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
143 - WM_STYLECHANGING
144 - WM_STYLECHANGED (things like read-only flag)
145 + WM_UNICHAR
146
147 Notifications
148
149 * EN_CHANGE (sent from the wrong place)
150 - EN_CORRECTTEXT
151 - EN_DROPFILES
152 - EN_ERRSPACE
153 - EN_HSCROLL
154 - EN_IMECHANGE
155 + EN_KILLFOCUS
156 - EN_LINK
157 - EN_MAXTEXT
158 - EN_MSGFILTER
159 - EN_OLEOPFAILED
160 - EN_PROTECTED
161 + EN_REQUESTRESIZE
162 - EN_SAVECLIPBOARD
163 + EN_SELCHANGE
164 + EN_SETFOCUS
165 - EN_STOPNOUNDO
166 * EN_UPDATE (sent from the wrong place)
167 - EN_VSCROLL
168
169 Styles
170
171 - ES_AUTOHSCROLL
172 - ES_AUTOVSCROLL
173 - ES_CENTER
174 + ES_DISABLENOSCROLL (scrollbar is always visible)
175 - ES_EX_NOCALLOLEINIT
176 - ES_LEFT
177 - ES_MULTILINE (currently single line controls aren't supported)
178 - ES_NOIME
179 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
180 - ES_RIGHT
181 - ES_SAVESEL
182 - ES_SELFIME
183 - ES_SUNKEN
184 - ES_VERTICAL
185 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
186 - WS_SETFONT
187 - WS_HSCROLL
188 + WS_VSCROLL
189 */
190
191 /*
192 * RICHED20 TODO (incomplete):
193 *
194 * - messages/styles/notifications listed above
195 * - add remaining CHARFORMAT/PARAFORMAT fields
196 * - right/center align should strip spaces from the beginning
197 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
198 * - COM interface (looks like a major pain in the TODO list)
199 * - calculate heights of pictures (half-done)
200 * - horizontal scrolling (not even started)
201 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
202 * - find/replace
203 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
204 * - italic caret with italic fonts
205 * - IME
206 * - most notifications aren't sent at all (the most important ones are)
207 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
208 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
209 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
210 * - full justification
211 * - hyphenation
212 * - tables
213 * - ListBox & ComboBox not implemented
214 *
215 * Bugs that are probably fixed, but not so easy to verify:
216 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
217 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
218 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
219 * - caret shouldn't be displayed when selection isn't empty
220 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
221 * - undo for setting default format (done, might be buggy)
222 * - styles might be not released properly (looks like they work like charm, but who knows?
223 *
224 */
225
226 #include "editor.h"
227 #include "commdlg.h"
228 #include "winreg.h"
229 #define NO_SHLWAPI_STREAM
230 #include "shlwapi.h"
231 #include "rtf.h"
232 #include "imm.h"
233 #include "res.h"
234
235 #define STACK_SIZE_DEFAULT 100
236 #define STACK_SIZE_MAX 1000
237
238 #define TEXT_LIMIT_DEFAULT 32767
239
240 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
241
242 static BOOL ME_RegisterEditorClass(HINSTANCE);
243
244 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
245 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
246 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
247 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
248 static HCURSOR hLeft;
249
250 int me_debug = 0;
251 HANDLE me_heap = NULL;
252
253 static BOOL ME_ListBoxRegistered = FALSE;
254 static BOOL ME_ComboBoxRegistered = FALSE;
255
256 static inline int is_version_nt(void)
257 {
258 return !(GetVersion() & 0x80000000);
259 }
260
261 static ME_TextBuffer *ME_MakeText(void) {
262
263 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
264
265 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
266 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
267
268 p1->prev = NULL;
269 p1->next = p2;
270 p2->prev = p1;
271 p2->next = NULL;
272 p1->member.para.next_para = p2;
273 p2->member.para.prev_para = p1;
274 p2->member.para.nCharOfs = 0;
275
276 buf->pFirst = p1;
277 buf->pLast = p2;
278 buf->pCharStyle = NULL;
279
280 return buf;
281 }
282
283
284 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
285 {
286 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
287 WCHAR *pText;
288
289 TRACE("%08x %p\n", dwFormat, stream);
290
291 do {
292 long nWideChars = 0;
293
294 if (!stream->dwSize)
295 {
296 ME_StreamInFill(stream);
297 if (stream->editstream->dwError)
298 break;
299 if (!stream->dwSize)
300 break;
301 }
302
303 if (!(dwFormat & SF_UNICODE))
304 {
305 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
306 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
307 pText = wszText;
308 }
309 else
310 {
311 nWideChars = stream->dwSize >> 1;
312 pText = (WCHAR *)stream->buffer;
313 }
314
315 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
316 if (stream->dwSize == 0)
317 break;
318 stream->dwSize = 0;
319 } while(1);
320 ME_CommitUndo(editor);
321 ME_UpdateRepaint(editor);
322 return 0;
323 }
324
325 static void ME_ApplyBorderProperties(RTF_Info *info,
326 ME_BorderRect *borderRect,
327 RTFBorder *borderDef)
328 {
329 int i, colorNum;
330 ME_Border *pBorders[] = {&borderRect->top,
331 &borderRect->left,
332 &borderRect->bottom,
333 &borderRect->right};
334 for (i = 0; i < 4; i++)
335 {
336 RTFColor *colorDef = info->colorList;
337 pBorders[i]->width = borderDef[i].width;
338 colorNum = borderDef[i].color;
339 while (colorDef && colorDef->rtfCNum != colorNum)
340 colorDef = colorDef->rtfNextColor;
341 if (colorDef)
342 pBorders[i]->colorRef = RGB(
343 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
344 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
345 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
346 else
347 pBorders[i]->colorRef = RGB(0, 0, 0);
348 }
349 }
350
351 void ME_RTFCharAttrHook(RTF_Info *info)
352 {
353 CHARFORMAT2W fmt;
354 fmt.cbSize = sizeof(fmt);
355 fmt.dwMask = 0;
356 fmt.dwEffects = 0;
357
358 switch(info->rtfMinor)
359 {
360 case rtfPlain:
361 /* FIXME add more flags once they're implemented */
362 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
363 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
364 fmt.yHeight = 12*20; /* 12pt */
365 fmt.wWeight = FW_NORMAL;
366 fmt.bUnderlineType = CFU_UNDERLINENONE;
367 break;
368 case rtfBold:
369 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
370 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
371 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
372 break;
373 case rtfItalic:
374 fmt.dwMask = CFM_ITALIC;
375 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
376 break;
377 case rtfUnderline:
378 fmt.dwMask = CFM_UNDERLINETYPE;
379 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
380 break;
381 case rtfDotUnderline:
382 fmt.dwMask = CFM_UNDERLINETYPE;
383 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
384 break;
385 case rtfDbUnderline:
386 fmt.dwMask = CFM_UNDERLINETYPE;
387 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
388 break;
389 case rtfWordUnderline:
390 fmt.dwMask = CFM_UNDERLINETYPE;
391 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
392 break;
393 case rtfNoUnderline:
394 fmt.dwMask = CFM_UNDERLINETYPE;
395 fmt.bUnderlineType = CFU_UNDERLINENONE;
396 break;
397 case rtfStrikeThru:
398 fmt.dwMask = CFM_STRIKEOUT;
399 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
400 break;
401 case rtfSubScript:
402 case rtfSuperScript:
403 case rtfSubScrShrink:
404 case rtfSuperScrShrink:
405 case rtfNoSuperSub:
406 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
407 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
408 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
409 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
410 break;
411 case rtfInvisible:
412 fmt.dwMask = CFM_HIDDEN;
413 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
414 break;
415 case rtfBackColor:
416 fmt.dwMask = CFM_BACKCOLOR;
417 fmt.dwEffects = 0;
418 if (info->rtfParam == 0)
419 fmt.dwEffects = CFE_AUTOBACKCOLOR;
420 else if (info->rtfParam != rtfNoParam)
421 {
422 RTFColor *c = RTFGetColor(info, info->rtfParam);
423 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
424 }
425 break;
426 case rtfForeColor:
427 fmt.dwMask = CFM_COLOR;
428 fmt.dwEffects = 0;
429 if (info->rtfParam == 0)
430 fmt.dwEffects = CFE_AUTOCOLOR;
431 else if (info->rtfParam != rtfNoParam)
432 {
433 RTFColor *c = RTFGetColor(info, info->rtfParam);
434 if (c)
435 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
436 else
437 fmt.crTextColor = 0;
438 }
439 break;
440 case rtfFontNum:
441 if (info->rtfParam != rtfNoParam)
442 {
443 RTFFont *f = RTFGetFont(info, info->rtfParam);
444 if (f)
445 {
446 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
447 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
448 fmt.bCharSet = f->rtfFCharSet;
449 fmt.dwMask = CFM_FACE | CFM_CHARSET;
450 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
451 }
452 }
453 break;
454 case rtfFontSize:
455 fmt.dwMask = CFM_SIZE;
456 if (info->rtfParam != rtfNoParam)
457 fmt.yHeight = info->rtfParam*10;
458 break;
459 }
460 if (fmt.dwMask) {
461 ME_Style *style2;
462 RTFFlushOutputBuffer(info);
463 /* FIXME too slow ? how come ? */
464 style2 = ME_ApplyStyle(info->style, &fmt);
465 ME_ReleaseStyle(info->style);
466 info->style = style2;
467 info->styleChanged = TRUE;
468 }
469 }
470
471 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
472 the same tags mean different things in different contexts */
473 void ME_RTFParAttrHook(RTF_Info *info)
474 {
475 PARAFORMAT2 fmt;
476 fmt.cbSize = sizeof(fmt);
477 fmt.dwMask = 0;
478
479 switch(info->rtfMinor)
480 {
481 case rtfParDef: /* restores default paragraph attributes */
482 if (!info->editor->bEmulateVersion10) /* v4.1 */
483 info->borderType = RTFBorderParaLeft;
484 else /* v1.0 - 3.0 */
485 info->borderType = RTFBorderParaTop;
486 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
487 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
488 PFM_STARTINDENT;
489 /* TODO: numbering, shading */
490 fmt.wAlignment = PFA_LEFT;
491 fmt.cTabCount = 0;
492 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
493 fmt.wBorderWidth = fmt.wBorders = 0;
494 fmt.wBorderSpace = 0;
495 fmt.bLineSpacingRule = 0;
496 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
497 fmt.dyLineSpacing = 0;
498 if (!info->editor->bEmulateVersion10) /* v4.1 */
499 {
500 if (info->tableDef && info->tableDef->tableRowStart &&
501 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
502 {
503 ME_Cursor cursor;
504 ME_DisplayItem *para;
505 /* We are just after a table row. */
506 RTFFlushOutputBuffer(info);
507 cursor = info->editor->pCursors[0];
508 para = ME_GetParagraph(cursor.pRun);
509 if (para == info->tableDef->tableRowStart->member.para.next_para
510 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
511 {
512 /* Since the table row end, no text has been inserted, and the \intbl
513 * control word has not be used. We can confirm that we are not in a
514 * table anymore.
515 */
516 info->tableDef->tableRowStart = NULL;
517 info->canInheritInTbl = FALSE;
518 }
519 }
520 } else { /* v1.0 - v3.0 */
521 fmt.dwMask |= PFM_TABLE;
522 fmt.wEffects &= ~PFE_TABLE;
523 }
524 break;
525 case rtfNestLevel:
526 if (!info->editor->bEmulateVersion10) /* v4.1 */
527 {
528 while (info->rtfParam > info->nestingLevel) {
529 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
530 ZeroMemory(tableDef, sizeof(RTFTable));
531 tableDef->parent = info->tableDef;
532 info->tableDef = tableDef;
533
534 RTFFlushOutputBuffer(info);
535 if (tableDef->tableRowStart &&
536 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
537 {
538 ME_DisplayItem *para = tableDef->tableRowStart;
539 para = para->member.para.next_para;
540 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
541 tableDef->tableRowStart = para;
542 } else {
543 ME_Cursor cursor;
544 WCHAR endl = '\r';
545 cursor = info->editor->pCursors[0];
546 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
547 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
548 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
549 }
550
551 info->nestingLevel++;
552 }
553 info->canInheritInTbl = FALSE;
554 }
555 break;
556 case rtfInTable:
557 {
558 if (!info->editor->bEmulateVersion10) /* v4.1 */
559 {
560 if (info->nestingLevel < 1)
561 {
562 RTFTable *tableDef;
563 if (!info->tableDef)
564 {
565 info->tableDef = ALLOC_OBJ(RTFTable);
566 ZeroMemory(info->tableDef, sizeof(RTFTable));
567 }
568 tableDef = info->tableDef;
569 RTFFlushOutputBuffer(info);
570 if (tableDef->tableRowStart &&
571 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
572 {
573 ME_DisplayItem *para = tableDef->tableRowStart;
574 para = para->member.para.next_para;
575 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
576 tableDef->tableRowStart = para;
577 } else {
578 ME_Cursor cursor;
579 WCHAR endl = '\r';
580 cursor = info->editor->pCursors[0];
581 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
582 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
583 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
584 }
585 info->nestingLevel = 1;
586 info->canInheritInTbl = TRUE;
587 }
588 return;
589 } else { /* v1.0 - v3.0 */
590 fmt.dwMask |= PFM_TABLE;
591 fmt.wEffects |= PFE_TABLE;
592 }
593 break;
594 }
595 case rtfFirstIndent:
596 ME_GetSelectionParaFormat(info->editor, &fmt);
597 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
598 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
599 fmt.dxOffset = -info->rtfParam;
600 break;
601 case rtfLeftIndent:
602 ME_GetSelectionParaFormat(info->editor, &fmt);
603 fmt.dwMask = PFM_STARTINDENT;
604 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
605 break;
606 case rtfRightIndent:
607 fmt.dwMask = PFM_RIGHTINDENT;
608 fmt.dxRightIndent = info->rtfParam;
609 break;
610 case rtfQuadLeft:
611 case rtfQuadJust:
612 fmt.dwMask = PFM_ALIGNMENT;
613 fmt.wAlignment = PFA_LEFT;
614 break;
615 case rtfQuadRight:
616 fmt.dwMask = PFM_ALIGNMENT;
617 fmt.wAlignment = PFA_RIGHT;
618 break;
619 case rtfQuadCenter:
620 fmt.dwMask = PFM_ALIGNMENT;
621 fmt.wAlignment = PFA_CENTER;
622 break;
623 case rtfTabPos:
624 ME_GetSelectionParaFormat(info->editor, &fmt);
625 if (!(fmt.dwMask & PFM_TABSTOPS))
626 {
627 fmt.cTabCount = 0;
628 }
629 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
630 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
631 fmt.dwMask = PFM_TABSTOPS;
632 break;
633 case rtfKeep:
634 fmt.dwMask = PFM_KEEP;
635 fmt.wEffects = PFE_KEEP;
636 break;
637 case rtfNoWidowControl:
638 fmt.dwMask = PFM_NOWIDOWCONTROL;
639 fmt.wEffects = PFE_NOWIDOWCONTROL;
640 break;
641 case rtfKeepNext:
642 fmt.dwMask = PFM_KEEPNEXT;
643 fmt.wEffects = PFE_KEEPNEXT;
644 break;
645 case rtfSpaceAfter:
646 fmt.dwMask = PFM_SPACEAFTER;
647 fmt.dySpaceAfter = info->rtfParam;
648 break;
649 case rtfSpaceBefore:
650 fmt.dwMask = PFM_SPACEBEFORE;
651 fmt.dySpaceBefore = info->rtfParam;
652 break;
653 case rtfSpaceBetween:
654 fmt.dwMask = PFM_LINESPACING;
655 if ((int)info->rtfParam > 0)
656 {
657 fmt.dyLineSpacing = info->rtfParam;
658 fmt.bLineSpacingRule = 3;
659 }
660 else
661 {
662 fmt.dyLineSpacing = info->rtfParam;
663 fmt.bLineSpacingRule = 4;
664 }
665 case rtfSpaceMultiply:
666 fmt.dwMask = PFM_LINESPACING;
667 fmt.dyLineSpacing = info->rtfParam * 20;
668 fmt.bLineSpacingRule = 5;
669 break;
670 case rtfParBullet:
671 fmt.dwMask = PFM_NUMBERING;
672 fmt.wNumbering = PFN_BULLET;
673 break;
674 case rtfParSimple:
675 fmt.dwMask = PFM_NUMBERING;
676 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
677 break;
678 case rtfParNumDecimal:
679 fmt.dwMask = PFM_NUMBERING;
680 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
681 break;
682 case rtfParNumIndent:
683 fmt.dwMask = PFM_NUMBERINGTAB;
684 fmt.wNumberingTab = info->rtfParam;
685 break;
686 case rtfParNumStartAt:
687 fmt.dwMask = PFM_NUMBERINGSTART;
688 fmt.wNumberingStart = info->rtfParam;
689 break;
690 case rtfBorderLeft:
691 info->borderType = RTFBorderParaLeft;
692 ME_GetSelectionParaFormat(info->editor, &fmt);
693 if (!(fmt.dwMask & PFM_BORDER))
694 {
695 fmt.wBorderSpace = 0;
696 fmt.wBorderWidth = 1;
697 fmt.wBorders = 0;
698 }
699 fmt.wBorders |= 1;
700 fmt.dwMask = PFM_BORDER;
701 break;
702 case rtfBorderRight:
703 info->borderType = RTFBorderParaRight;
704 ME_GetSelectionParaFormat(info->editor, &fmt);
705 if (!(fmt.dwMask & PFM_BORDER))
706 {
707 fmt.wBorderSpace = 0;
708 fmt.wBorderWidth = 1;
709 fmt.wBorders = 0;
710 }
711 fmt.wBorders |= 2;
712 fmt.dwMask = PFM_BORDER;
713 break;
714 case rtfBorderTop:
715 info->borderType = RTFBorderParaTop;
716 ME_GetSelectionParaFormat(info->editor, &fmt);
717 if (!(fmt.dwMask & PFM_BORDER))
718 {
719 fmt.wBorderSpace = 0;
720 fmt.wBorderWidth = 1;
721 fmt.wBorders = 0;
722 }
723 fmt.wBorders |= 4;
724 fmt.dwMask = PFM_BORDER;
725 break;
726 case rtfBorderBottom:
727 info->borderType = RTFBorderParaBottom;
728 ME_GetSelectionParaFormat(info->editor, &fmt);
729 if (!(fmt.dwMask & PFM_BORDER))
730 {
731 fmt.wBorderSpace = 0;
732 fmt.wBorderWidth = 1;
733 fmt.wBorders = 0;
734 }
735 fmt.wBorders |= 8;
736 fmt.dwMask = PFM_BORDER;
737 break;
738 case rtfBorderSingle:
739 ME_GetSelectionParaFormat(info->editor, &fmt);
740 /* we assume that borders have been created before (RTF spec) */
741 fmt.wBorders &= ~0x700;
742 fmt.wBorders |= 1 << 8;
743 fmt.dwMask = PFM_BORDER;
744 break;
745 case rtfBorderThick:
746 ME_GetSelectionParaFormat(info->editor, &fmt);
747 /* we assume that borders have been created before (RTF spec) */
748 fmt.wBorders &= ~0x700;
749 fmt.wBorders |= 2 << 8;
750 fmt.dwMask = PFM_BORDER;
751 break;
752 case rtfBorderShadow:
753 ME_GetSelectionParaFormat(info->editor, &fmt);
754 /* we assume that borders have been created before (RTF spec) */
755 fmt.wBorders &= ~0x700;
756 fmt.wBorders |= 10 << 8;
757 fmt.dwMask = PFM_BORDER;
758 break;
759 case rtfBorderDouble:
760 ME_GetSelectionParaFormat(info->editor, &fmt);
761 /* we assume that borders have been created before (RTF spec) */
762 fmt.wBorders &= ~0x700;
763 fmt.wBorders |= 7 << 8;
764 fmt.dwMask = PFM_BORDER;
765 break;
766 case rtfBorderDot:
767 ME_GetSelectionParaFormat(info->editor, &fmt);
768 /* we assume that borders have been created before (RTF spec) */
769 fmt.wBorders &= ~0x700;
770 fmt.wBorders |= 11 << 8;
771 fmt.dwMask = PFM_BORDER;
772 break;
773 case rtfBorderWidth:
774 {
775 int borderSide = info->borderType & RTFBorderSideMask;
776 RTFTable *tableDef = info->tableDef;
777 ME_GetSelectionParaFormat(info->editor, &fmt);
778 /* we assume that borders have been created before (RTF spec) */
779 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
780 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
781 {
782 RTFBorder *border;
783 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
784 break;
785 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
786 border->width = info->rtfParam;
787 break;
788 }
789 fmt.dwMask = PFM_BORDER;
790 break;
791 }
792 case rtfBorderSpace:
793 ME_GetSelectionParaFormat(info->editor, &fmt);
794 /* we assume that borders have been created before (RTF spec) */
795 fmt.wBorderSpace = info->rtfParam;
796 fmt.dwMask = PFM_BORDER;
797 break;
798 case rtfBorderColor:
799 {
800 RTFTable *tableDef = info->tableDef;
801 int borderSide = info->borderType & RTFBorderSideMask;
802 int borderType = info->borderType & RTFBorderTypeMask;
803 switch(borderType)
804 {
805 case RTFBorderTypePara:
806 if (!info->editor->bEmulateVersion10) /* v4.1 */
807 break;
808 /* v1.0 - 3.0 treat paragraph and row borders the same. */
809 case RTFBorderTypeRow:
810 if (tableDef) {
811 tableDef->border[borderSide].color = info->rtfParam;
812 }
813 break;
814 case RTFBorderTypeCell:
815 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
816 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
817 }
818 break;
819 }
820 break;
821 }
822 }
823 if (fmt.dwMask) {
824 RTFFlushOutputBuffer(info);
825 /* FIXME too slow ? how come ?*/
826 ME_SetSelectionParaFormat(info->editor, &fmt);
827 }
828 }
829
830 void ME_RTFTblAttrHook(RTF_Info *info)
831 {
832 switch (info->rtfMinor)
833 {
834 case rtfRowDef:
835 {
836 if (!info->editor->bEmulateVersion10) /* v4.1 */
837 info->borderType = 0; /* Not sure */
838 else /* v1.0 - 3.0 */
839 info->borderType = RTFBorderRowTop;
840 if (!info->tableDef) {
841 info->tableDef = ME_MakeTableDef(info->editor);
842 } else {
843 ME_InitTableDef(info->editor, info->tableDef);
844 }
845 break;
846 }
847 case rtfCellPos:
848 {
849 int cellNum;
850 if (!info->tableDef)
851 {
852 info->tableDef = ME_MakeTableDef(info->editor);
853 }
854 cellNum = info->tableDef->numCellsDefined;
855 if (cellNum >= MAX_TABLE_CELLS)
856 break;
857 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
858 if (cellNum < MAX_TAB_STOPS) {
859 /* Tab stops were used to store cell positions before v4.1 but v4.1
860 * still seems to set the tabstops without using them. */
861 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
862 PARAFORMAT2 *pFmt = para->member.para.pFmt;
863 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
864 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
865 }
866 info->tableDef->numCellsDefined++;
867 break;
868 }
869 case rtfRowBordTop:
870 info->borderType = RTFBorderRowTop;
871 break;
872 case rtfRowBordLeft:
873 info->borderType = RTFBorderRowLeft;
874 break;
875 case rtfRowBordBottom:
876 info->borderType = RTFBorderRowBottom;
877 break;
878 case rtfRowBordRight:
879 info->borderType = RTFBorderRowRight;
880 break;
881 case rtfCellBordTop:
882 info->borderType = RTFBorderCellTop;
883 break;
884 case rtfCellBordLeft:
885 info->borderType = RTFBorderCellLeft;
886 break;
887 case rtfCellBordBottom:
888 info->borderType = RTFBorderCellBottom;
889 break;
890 case rtfCellBordRight:
891 info->borderType = RTFBorderCellRight;
892 break;
893 case rtfRowGapH:
894 if (info->tableDef)
895 info->tableDef->gapH = info->rtfParam;
896 break;
897 case rtfRowLeftEdge:
898 if (info->tableDef)
899 info->tableDef->leftEdge = info->rtfParam;
900 break;
901 }
902 }
903
904 void ME_RTFSpecialCharHook(RTF_Info *info)
905 {
906 RTFTable *tableDef = info->tableDef;
907 switch (info->rtfMinor)
908 {
909 case rtfNestCell:
910 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
911 break;
912 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
913 case rtfCell:
914 if (!tableDef)
915 break;
916 RTFFlushOutputBuffer(info);
917 if (!info->editor->bEmulateVersion10) { /* v4.1 */
918 if (tableDef->tableRowStart)
919 {
920 if (!info->nestingLevel &&
921 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
922 {
923 ME_DisplayItem *para = tableDef->tableRowStart;
924 para = para->member.para.next_para;
925 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
926 tableDef->tableRowStart = para;
927 info->nestingLevel = 1;
928 }
929 ME_InsertTableCellFromCursor(info->editor);
930 }
931 } else { /* v1.0 - v3.0 */
932 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
933 PARAFORMAT2 *pFmt = para->member.para.pFmt;
934 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
935 tableDef->numCellsInserted < tableDef->numCellsDefined)
936 {
937 WCHAR tab = '\t';
938 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
939 tableDef->numCellsInserted++;
940 }
941 }
942 break;
943 case rtfNestRow:
944 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
945 break;
946 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
947 case rtfRow:
948 {
949 ME_DisplayItem *para, *cell, *run;
950 int i;
951
952 if (!tableDef)
953 break;
954 RTFFlushOutputBuffer(info);
955 if (!info->editor->bEmulateVersion10) { /* v4.1 */
956 if (!tableDef->tableRowStart)
957 break;
958 if (!info->nestingLevel &&
959 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
960 {
961 para = tableDef->tableRowStart;
962 para = para->member.para.next_para;
963 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
964 tableDef->tableRowStart = para;
965 info->nestingLevel++;
966 }
967 para = tableDef->tableRowStart;
968 cell = ME_FindItemFwd(para, diCell);
969 assert(cell && !cell->member.cell.prev_cell);
970 if (tableDef->numCellsDefined < 1)
971 {
972 /* 2000 twips appears to be the cell size that native richedit uses
973 * when no cell sizes are specified. */
974 const int defaultCellSize = 2000;
975 int nRightBoundary = defaultCellSize;
976 cell->member.cell.nRightBoundary = nRightBoundary;
977 while (cell->member.cell.next_cell) {
978 cell = cell->member.cell.next_cell;
979 nRightBoundary += defaultCellSize;
980 cell->member.cell.nRightBoundary = nRightBoundary;
981 }
982 para = ME_InsertTableCellFromCursor(info->editor);
983 cell = para->member.para.pCell;
984 cell->member.cell.nRightBoundary = nRightBoundary;
985 } else {
986 for (i = 0; i < tableDef->numCellsDefined; i++)
987 {
988 RTFCell *cellDef = &tableDef->cells[i];
989 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
990 ME_ApplyBorderProperties(info, &cell->member.cell.border,
991 cellDef->border);
992 cell = cell->member.cell.next_cell;
993 if (!cell)
994 {
995 para = ME_InsertTableCellFromCursor(info->editor);
996 cell = para->member.para.pCell;
997 }
998 }
999 /* Cell for table row delimiter is empty */
1000 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1001 }
1002
1003 run = ME_FindItemFwd(cell, diRun);
1004 if (info->editor->pCursors[0].pRun != run ||
1005 info->editor->pCursors[0].nOffset)
1006 {
1007 int nOfs, nChars;
1008 /* Delete inserted cells that aren't defined. */
1009 info->editor->pCursors[1].pRun = run;
1010 info->editor->pCursors[1].nOffset = 0;
1011 nOfs = ME_GetCursorOfs(info->editor, 1);
1012 nChars = ME_GetCursorOfs(info->editor, 0) - nOfs;
1013 ME_InternalDeleteText(info->editor, nOfs, nChars, TRUE);
1014 }
1015
1016 para = ME_InsertTableRowEndFromCursor(info->editor);
1017 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1018 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1019 ME_ApplyBorderProperties(info, &para->member.para.border,
1020 tableDef->border);
1021 info->nestingLevel--;
1022 if (!info->nestingLevel)
1023 {
1024 if (info->canInheritInTbl) {
1025 tableDef->tableRowStart = para;
1026 } else {
1027 while (info->tableDef) {
1028 tableDef = info->tableDef;
1029 info->tableDef = tableDef->parent;
1030 heap_free(tableDef);
1031 }
1032 }
1033 } else {
1034 info->tableDef = tableDef->parent;
1035 heap_free(tableDef);
1036 }
1037 } else { /* v1.0 - v3.0 */
1038 WCHAR endl = '\r';
1039 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1040 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1041 pFmt->dxOffset = info->tableDef->gapH;
1042 pFmt->dxStartIndent = info->tableDef->leftEdge;
1043
1044 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1045 ME_ApplyBorderProperties(info, &para->member.para.border,
1046 tableDef->border);
1047 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1048 {
1049 WCHAR tab = '\t';
1050 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1051 tableDef->numCellsInserted++;
1052 }
1053 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1054 if (!tableDef->numCellsDefined)
1055 pFmt->wEffects &= ~PFE_TABLE;
1056 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1057 tableDef->numCellsInserted = 0;
1058 }
1059 break;
1060 }
1061 case rtfTab:
1062 case rtfPar:
1063 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1064 ME_DisplayItem *para;
1065 PARAFORMAT2 *pFmt;
1066 RTFFlushOutputBuffer(info);
1067 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1068 pFmt = para->member.para.pFmt;
1069 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1070 {
1071 /* rtfPar is treated like a space within a table. */
1072 info->rtfClass = rtfText;
1073 info->rtfMajor = ' ';
1074 }
1075 else if (info->rtfMinor == rtfPar && tableDef)
1076 tableDef->numCellsInserted = 0;
1077 }
1078 break;
1079 }
1080 }
1081
1082 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1083 const SIZEL* sz)
1084 {
1085 LPOLEOBJECT lpObject = NULL;
1086 LPSTORAGE lpStorage = NULL;
1087 LPOLECLIENTSITE lpClientSite = NULL;
1088 LPDATAOBJECT lpDataObject = NULL;
1089 LPOLECACHE lpOleCache = NULL;
1090 STGMEDIUM stgm;
1091 FORMATETC fm;
1092 CLSID clsid;
1093 BOOL ret = FALSE;
1094 DWORD conn;
1095
1096 if (hemf)
1097 {
1098 stgm.tymed = TYMED_ENHMF;
1099 stgm.u.hEnhMetaFile = hemf;
1100 fm.cfFormat = CF_ENHMETAFILE;
1101 }
1102 else if (hbmp)
1103 {
1104 stgm.tymed = TYMED_GDI;
1105 stgm.u.hBitmap = hbmp;
1106 fm.cfFormat = CF_BITMAP;
1107 }
1108 stgm.pUnkForRelease = NULL;
1109
1110 fm.ptd = NULL;
1111 fm.dwAspect = DVASPECT_CONTENT;
1112 fm.lindex = -1;
1113 fm.tymed = stgm.tymed;
1114
1115 if (!info->lpRichEditOle)
1116 {
1117 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1118 }
1119
1120 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1121 #if 0
1122 /* FIXME: enable it when rich-edit properly implements this method */
1123 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1124 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1125 #endif
1126 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1127 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1128 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1129 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1130 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1131 {
1132 REOBJECT reobject;
1133
1134 reobject.cbStruct = sizeof(reobject);
1135 reobject.cp = REO_CP_SELECTION;
1136 reobject.clsid = clsid;
1137 reobject.poleobj = lpObject;
1138 reobject.pstg = lpStorage;
1139 reobject.polesite = lpClientSite;
1140 /* convert from twips to .01 mm */
1141 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1142 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1143 reobject.dvaspect = DVASPECT_CONTENT;
1144 reobject.dwFlags = 0; /* FIXME */
1145 reobject.dwUser = 0;
1146
1147 /* FIXME: could be simpler */
1148 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
1149 }
1150
1151 if (lpObject) IOleObject_Release(lpObject);
1152 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1153 if (lpStorage) IStorage_Release(lpStorage);
1154 if (lpDataObject) IDataObject_Release(lpDataObject);
1155 if (lpOleCache) IOleCache_Release(lpOleCache);
1156
1157 return ret;
1158 }
1159
1160 static void ME_RTFReadPictGroup(RTF_Info *info)
1161 {
1162 SIZEL sz;
1163 BYTE* buffer = NULL;
1164 unsigned bufsz, bufidx;
1165 BOOL flip;
1166 BYTE val;
1167 METAFILEPICT mfp;
1168 HENHMETAFILE hemf;
1169 HBITMAP hbmp;
1170 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1171
1172 RTFGetToken (info);
1173 if (info->rtfClass == rtfEOF)
1174 return;
1175 mfp.mm = MM_TEXT;
1176 /* fetch picture type */
1177 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1178 {
1179 mfp.mm = info->rtfParam;
1180 gfx = gfx_metafile;
1181 }
1182 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1183 {
1184 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1185 gfx = gfx_dib;
1186 }
1187 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1188 {
1189 gfx = gfx_enhmetafile;
1190 }
1191 else
1192 {
1193 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1194 goto skip_group;
1195 }
1196 sz.cx = sz.cy = 0;
1197 /* fetch picture attributes */
1198 for (;;)
1199 {
1200 RTFGetToken (info);
1201 if (info->rtfClass == rtfEOF)
1202 return;
1203 if (info->rtfClass == rtfText)
1204 break;
1205 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1206 {
1207 ERR("Expected picture attribute (%d %d)\n",
1208 info->rtfClass, info->rtfMajor);
1209 goto skip_group;
1210 }
1211 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1212 {
1213 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1214 }
1215 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1216 {
1217 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1218 }
1219 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1220 sz.cx = info->rtfParam;
1221 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1222 sz.cy = info->rtfParam;
1223 else
1224 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1225 }
1226 /* fetch picture data */
1227 bufsz = 1024;
1228 bufidx = 0;
1229 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1230 val = info->rtfMajor;
1231 for (flip = TRUE;; flip = !flip)
1232 {
1233 RTFGetToken (info);
1234 if (info->rtfClass == rtfEOF)
1235 {
1236 HeapFree(GetProcessHeap(), 0, buffer);
1237 return; /* Warn ?? */
1238 }
1239 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1240 break;
1241 if (info->rtfClass != rtfText) goto skip_group;
1242 if (flip)
1243 {
1244 if (bufidx >= bufsz &&
1245 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1246 goto skip_group;
1247 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1248 }
1249 else
1250 val = info->rtfMajor;
1251 }
1252 if (flip) FIXME("wrong hex string\n");
1253
1254 switch (gfx)
1255 {
1256 case gfx_enhmetafile:
1257 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1258 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1259 break;
1260 case gfx_metafile:
1261 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1262 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1263 break;
1264 case gfx_dib:
1265 {
1266 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1267 HDC hdc = GetDC(0);
1268 unsigned nc = bi->bmiHeader.biClrUsed;
1269
1270 /* not quite right, especially for bitfields type of compression */
1271 if (!nc && bi->bmiHeader.biBitCount <= 8)
1272 nc = 1 << bi->bmiHeader.biBitCount;
1273 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1274 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1275 bi, DIB_RGB_COLORS)))
1276 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1277 ReleaseDC(0, hdc);
1278 }
1279 break;
1280 default:
1281 break;
1282 }
1283 HeapFree(GetProcessHeap(), 0, buffer);
1284 RTFRouteToken (info); /* feed "}" back to router */
1285 return;
1286 skip_group:
1287 HeapFree(GetProcessHeap(), 0, buffer);
1288 RTFSkipGroup(info);
1289 RTFRouteToken(info); /* feed "}" back to router */
1290 }
1291
1292 /* for now, lookup the \result part and use it, whatever the object */
1293 static void ME_RTFReadObjectGroup(RTF_Info *info)
1294 {
1295 for (;;)
1296 {
1297 RTFGetToken (info);
1298 if (info->rtfClass == rtfEOF)
1299 return;
1300 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1301 break;
1302 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1303 {
1304 RTFGetToken (info);
1305 if (info->rtfClass == rtfEOF)
1306 return;
1307 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1308 {
1309 int level = 1;
1310
1311 while (RTFGetToken (info) != rtfEOF)
1312 {
1313 if (info->rtfClass == rtfGroup)
1314 {
1315 if (info->rtfMajor == rtfBeginGroup) level++;
1316 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1317 }
1318 RTFRouteToken(info);
1319 }
1320 }
1321 else RTFSkipGroup(info);
1322 continue;
1323 }
1324 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1325 {
1326 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1327 return;
1328 }
1329 }
1330 RTFRouteToken(info); /* feed "}" back to router */
1331 }
1332
1333 static void ME_RTFReadHook(RTF_Info *info)
1334 {
1335 switch(info->rtfClass)
1336 {
1337 case rtfGroup:
1338 switch(info->rtfMajor)
1339 {
1340 case rtfBeginGroup:
1341 if (info->stackTop < maxStack) {
1342 info->stack[info->stackTop].fmt = info->style->fmt;
1343 info->stack[info->stackTop].codePage = info->codePage;
1344 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1345 }
1346 info->stackTop++;
1347 info->styleChanged = FALSE;
1348 break;
1349 case rtfEndGroup:
1350 {
1351 ME_Style *s;
1352 RTFFlushOutputBuffer(info);
1353 info->stackTop--;
1354 if (info->stackTop<=0) {
1355 info->rtfClass = rtfEOF;
1356 return;
1357 }
1358 assert(info->stackTop >= 0);
1359 if (info->styleChanged)
1360 {
1361 /* FIXME too slow ? how come ? */
1362 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
1363 ME_ReleaseStyle(info->style);
1364 info->style = s;
1365 info->codePage = info->stack[info->stackTop].codePage;
1366 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1367 }
1368 break;
1369 }
1370 }
1371 break;
1372 }
1373 }
1374
1375 void
1376 ME_StreamInFill(ME_InStream *stream)
1377 {
1378 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1379 (BYTE *)stream->buffer,
1380 sizeof(stream->buffer),
1381 (LONG *)&stream->dwSize);
1382 stream->dwUsed = 0;
1383 }
1384
1385 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1386 {
1387 RTF_Info parser;
1388 ME_Style *style;
1389 int from, to, to2, nUndoMode;
1390 int nEventMask = editor->nEventMask;
1391 ME_InStream inStream;
1392 BOOL invalidRTF = FALSE;
1393
1394 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
1395 editor->nEventMask = 0;
1396
1397 ME_GetSelection(editor, &from, &to);
1398 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1399 style = ME_GetSelectionInsertStyle(editor);
1400
1401 ME_InternalDeleteText(editor, from, to-from, FALSE);
1402
1403 /* Don't insert text at the end of the table row */
1404 if (!editor->bEmulateVersion10) { /* v4.1 */
1405 ME_DisplayItem *para = ME_GetParagraph(editor->pCursors->pRun);
1406 if (para->member.para.nFlags & MEPF_ROWEND)
1407 {
1408 para = para->member.para.next_para;
1409 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1410 editor->pCursors[0].nOffset = 0;
1411 }
1412 if (para->member.para.nFlags & MEPF_ROWSTART)
1413 {
1414 para = para->member.para.next_para;
1415 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1416 editor->pCursors[0].nOffset = 0;
1417 }
1418 editor->pCursors[1] = editor->pCursors[0];
1419 } else { /* v1.0 - 3.0 */
1420 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1421 ME_IsInTable(editor->pCursors[0].pRun))
1422 return 0;
1423 }
1424 }
1425 else {
1426 ME_DisplayItem *para_item;
1427 style = editor->pBuffer->pDefaultStyle;
1428 ME_AddRefStyle(style);
1429 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1430 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
1431 from = to = 0;
1432 ME_ClearTempStyle(editor);
1433
1434 para_item = ME_GetParagraph(editor->pCursors[0].pRun);
1435 ME_SetDefaultParaFormat(para_item->member.para.pFmt);
1436 }
1437
1438
1439 /* Back up undo mode to a local variable */
1440 nUndoMode = editor->nUndoMode;
1441
1442 /* Only create an undo if SFF_SELECTION is set */
1443 if (!(format & SFF_SELECTION))
1444 editor->nUndoMode = umIgnore;
1445
1446 inStream.editstream = stream;
1447 inStream.editstream->dwError = 0;
1448 inStream.dwSize = 0;
1449 inStream.dwUsed = 0;
1450
1451 if (format & SF_RTF)
1452 {
1453 /* Check if it's really RTF, and if it is not, use plain text */
1454 ME_StreamInFill(&inStream);
1455 if (!inStream.editstream->dwError)
1456 {
1457 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1458 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1459 {
1460 invalidRTF = TRUE;
1461 inStream.editstream->dwError = -16;
1462 }
1463 }
1464 }
1465
1466 if (!invalidRTF && !inStream.editstream->dwError)
1467 {
1468 if (format & SF_RTF) {
1469 /* setup the RTF parser */
1470 memset(&parser, 0, sizeof parser);
1471 RTFSetEditStream(&parser, &inStream);
1472 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1473 parser.hwndEdit = editor->hWnd;
1474 parser.editor = editor;
1475 parser.style = style;
1476 WriterInit(&parser);
1477 RTFInit(&parser);
1478 RTFSetReadHook(&parser, ME_RTFReadHook);
1479 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1480 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1481 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1482 {
1483 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1484 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1485 }
1486 BeginFile(&parser);
1487
1488 /* do the parsing */
1489 RTFRead(&parser);
1490 RTFFlushOutputBuffer(&parser);
1491 if (!editor->bEmulateVersion10) { /* v4.1 */
1492 if (parser.tableDef && parser.tableDef->tableRowStart &&
1493 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1494 {
1495 /* Delete any incomplete table row at the end of the rich text. */
1496 int nOfs, nChars;
1497 ME_DisplayItem *pCell;
1498 ME_DisplayItem *para;
1499
1500 parser.rtfMinor = rtfRow;
1501 /* Complete the table row before deleting it.
1502 * By doing it this way we will have the current paragraph format set
1503 * properly to reflect that is not in the complete table, and undo items
1504 * will be added for this change to the current paragraph format. */
1505 if (parser.nestingLevel > 0)
1506 {
1507 while (parser.nestingLevel > 1)
1508 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1509 para = parser.tableDef->tableRowStart;
1510 ME_RTFSpecialCharHook(&parser);
1511 } else {
1512 para = parser.tableDef->tableRowStart;
1513 ME_RTFSpecialCharHook(&parser);
1514 assert(para->member.para.nFlags & MEPF_ROWEND);
1515 para = para->member.para.next_para;
1516 }
1517 pCell = para->member.para.pCell;
1518
1519 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1520 editor->pCursors[1].nOffset = 0;
1521 nOfs = ME_GetCursorOfs(editor, 1);
1522 nChars = ME_GetCursorOfs(editor, 0) - nOfs;
1523 ME_InternalDeleteText(editor, nOfs, nChars, TRUE);
1524 if (parser.tableDef)
1525 parser.tableDef->tableRowStart = NULL;
1526 }
1527 }
1528 ME_CheckTablesForCorruption(editor);
1529 RTFDestroy(&parser);
1530 if (parser.lpRichEditOle)
1531 IRichEditOle_Release(parser.lpRichEditOle);
1532
1533 if (!inStream.editstream->dwError && parser.stackTop > 0)
1534 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1535
1536 /* Remove last line break, as mandated by tests. This is not affected by
1537 CR/LF counters, since RTF streaming presents only \para tokens, which
1538 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1539 */
1540 if (stripLastCR) {
1541 int newfrom, newto;
1542 ME_GetSelection(editor, &newfrom, &newto);
1543 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1544 WCHAR lastchar[3] = {'\0', '\0'};
1545 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1546
1547 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1548 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1549 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize, FALSE);
1550 }
1551 }
1552 }
1553
1554 style = parser.style;
1555 }
1556 else if (format & SF_TEXT)
1557 ME_StreamInText(editor, format, &inStream, style);
1558 else
1559 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1560 ME_GetSelection(editor, &to, &to2);
1561 /* put the cursor at the top */
1562 if (!(format & SFF_SELECTION))
1563 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1564 }
1565
1566 /* Restore saved undo mode */
1567 editor->nUndoMode = nUndoMode;
1568
1569 /* even if we didn't add an undo, we need to commit anything on the stack */
1570 ME_CommitUndo(editor);
1571
1572 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1573 if (!(format & SFF_SELECTION))
1574 ME_EmptyUndoStack(editor);
1575
1576 ME_ReleaseStyle(style);
1577 editor->nEventMask = nEventMask;
1578 ME_UpdateRepaint(editor);
1579 if (!(format & SFF_SELECTION)) {
1580 ME_ClearTempStyle(editor);
1581 }
1582 HideCaret(editor->hWnd);
1583 ME_MoveCaret(editor);
1584 ShowCaret(editor->hWnd);
1585 ME_SendSelChange(editor);
1586 ME_SendRequestResize(editor, FALSE);
1587
1588 return 0;
1589 }
1590
1591
1592 typedef struct tagME_RTFStringStreamStruct
1593 {
1594 char *string;
1595 int pos;
1596 int length;
1597 } ME_RTFStringStreamStruct;
1598
1599 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1600 {
1601 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1602 int count;
1603
1604 count = min(cb, pStruct->length - pStruct->pos);
1605 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1606 pStruct->pos += count;
1607 *pcb = count;
1608 return 0;
1609 }
1610
1611 static void
1612 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1613 {
1614 EDITSTREAM es;
1615 ME_RTFStringStreamStruct data;
1616
1617 data.string = string;
1618 data.length = strlen(string);
1619 data.pos = 0;
1620 es.dwCookie = (DWORD)&data;
1621 es.pfnCallback = ME_ReadFromRTFString;
1622 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1623 }
1624
1625
1626 ME_DisplayItem *
1627 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1628 {
1629 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1630 int runLength;
1631
1632 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1633 item = ME_FindItemFwd(item, diParagraph);
1634
1635 if (!item)
1636 return item;
1637
1638 nOffset -= item->member.para.nCharOfs;
1639 if (nItemType == diParagraph) {
1640 if (nItemOffset)
1641 *nItemOffset = nOffset;
1642 return item;
1643 }
1644
1645 do {
1646 item = ME_FindItemFwd(item, diRun);
1647 runLength = ME_StrLen(item->member.run.strText);
1648 if (item->member.run.nFlags & MERF_ENDPARA)
1649 runLength = item->member.run.nCR + item->member.run.nLF;
1650 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1651 if (item) {
1652 nOffset -= item->member.run.nCharOfs;
1653
1654 /* Special case: nOffset may not point exactly at the division between the
1655 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1656 into the next run, if one exists
1657 */
1658 if ( item->member.run.nFlags & MERF_ENDPARA
1659 && nOffset == item->member.run.nCR
1660 && item->member.run.nLF > 0) {
1661 ME_DisplayItem *nextItem;
1662 nextItem = ME_FindItemFwd(item, diRun);
1663 if (nextItem) {
1664 nOffset = 0;
1665 item = nextItem;
1666 }
1667 }
1668 if (nItemOffset)
1669 *nItemOffset = nOffset;
1670 }
1671 return item;
1672 }
1673
1674
1675 static int
1676 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1677 {
1678 const int nLen = lstrlenW(text);
1679 const int nTextLen = ME_GetTextLength(editor);
1680 int nStart, nEnd;
1681 int nMin, nMax;
1682 ME_DisplayItem *item;
1683 ME_DisplayItem *para;
1684 WCHAR wLastChar = ' ';
1685
1686 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1687 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1688
1689 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1690 FIXME("Flags 0x%08x not implemented\n",
1691 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1692
1693 nMin = chrg->cpMin;
1694 if (chrg->cpMax == -1)
1695 nMax = nTextLen;
1696 else
1697 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1698
1699 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1700 if (editor->bEmulateVersion10 && nMax == nTextLen)
1701 {
1702 flags |= FR_DOWN;
1703 }
1704
1705 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1706 if (editor->bEmulateVersion10 && nMax < nMin)
1707 {
1708 if (chrgText)
1709 {
1710 chrgText->cpMin = -1;
1711 chrgText->cpMax = -1;
1712 }
1713 return -1;
1714 }
1715
1716 /* when searching up, if cpMin < cpMax, then instead of searching
1717 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1718 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1719 * case, it is always bigger than cpMin.
1720 */
1721 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1722 {
1723 int nSwap = nMax;
1724
1725 nMax = nMin > nTextLen ? nTextLen : nMin;
1726 if (nMin < nSwap || chrg->cpMax == -1)
1727 nMin = 0;
1728 else
1729 nMin = nSwap;
1730 }
1731
1732 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1733 {
1734 if (chrgText)
1735 chrgText->cpMin = chrgText->cpMax = -1;
1736 return -1;
1737 }
1738
1739 if (flags & FR_DOWN) /* Forward search */
1740 {
1741 /* If possible, find the character before where the search starts */
1742 if ((flags & FR_WHOLEWORD) && nMin)
1743 {
1744 nStart = nMin - 1;
1745 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1746 if (!item)
1747 {
1748 if (chrgText)
1749 chrgText->cpMin = chrgText->cpMax = -1;
1750 return -1;
1751 }
1752 wLastChar = item->member.run.strText->szData[nStart];
1753 }
1754
1755 nStart = nMin;
1756 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1757 if (!item)
1758 {
1759 if (chrgText)
1760 chrgText->cpMin = chrgText->cpMax = -1;
1761 return -1;
1762 }
1763
1764 para = ME_GetParagraph(item);
1765 while (item
1766 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1767 {
1768 ME_DisplayItem *pCurItem = item;
1769 int nCurStart = nStart;
1770 int nMatched = 0;
1771
1772 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1773 {
1774 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1775 break;
1776
1777 nMatched++;
1778 if (nMatched == nLen)
1779 {
1780 ME_DisplayItem *pNextItem = pCurItem;
1781 int nNextStart = nCurStart;
1782 WCHAR wNextChar;
1783
1784 /* Check to see if next character is a whitespace */
1785 if (flags & FR_WHOLEWORD)
1786 {
1787 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1788 {
1789 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1790 nNextStart = -nMatched;
1791 }
1792
1793 if (pNextItem)
1794 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1795 else
1796 wNextChar = ' ';
1797
1798 if (isalnumW(wNextChar))
1799 break;
1800 }
1801
1802 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1803 if (chrgText)
1804 {
1805 chrgText->cpMin = nStart;
1806 chrgText->cpMax = nStart + nLen;
1807 }
1808 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1809 return nStart;
1810 }
1811 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1812 {
1813 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1814 para = ME_GetParagraph(pCurItem);
1815 nCurStart = -nMatched;
1816 }
1817 }
1818 if (pCurItem)
1819 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1820 else
1821 wLastChar = ' ';
1822
1823 nStart++;
1824 if (nStart == ME_StrLen(item->member.run.strText))
1825 {
1826 item = ME_FindItemFwd(item, diRun);
1827 para = ME_GetParagraph(item);
1828 nStart = 0;
1829 }
1830 }
1831 }
1832 else /* Backward search */
1833 {
1834 /* If possible, find the character after where the search ends */
1835 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1836 {
1837 nEnd = nMax + 1;
1838 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1839 if (!item)
1840 {
1841 if (chrgText)
1842 chrgText->cpMin = chrgText->cpMax = -1;
1843 return -1;
1844 }
1845 wLastChar = item->member.run.strText->szData[nEnd];
1846 }
1847
1848 nEnd = nMax;
1849 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1850 if (!item)
1851 {
1852 if (chrgText)
1853 chrgText->cpMin = chrgText->cpMax = -1;
1854 return -1;
1855 }
1856
1857 para = ME_GetParagraph(item);
1858
1859 while (item
1860 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1861 {
1862 ME_DisplayItem *pCurItem = item;
1863 int nCurEnd = nEnd;
1864 int nMatched = 0;
1865
1866 if (nCurEnd - nMatched == 0)
1867 {
1868 pCurItem = ME_FindItemBack(pCurItem, diRun);
1869 para = ME_GetParagraph(pCurItem);
1870 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1871 }
1872
1873 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1874 {
1875 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1876 break;
1877
1878 nMatched++;
1879 if (nMatched == nLen)
1880 {
1881 ME_DisplayItem *pPrevItem = pCurItem;
1882 int nPrevEnd = nCurEnd;
1883 WCHAR wPrevChar;
1884
1885 /* Check to see if previous character is a whitespace */
1886 if (flags & FR_WHOLEWORD)
1887 {
1888 if (nPrevEnd - nMatched == 0)
1889 {
1890 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1891 if (pPrevItem)
1892 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1893 }
1894
1895 if (pPrevItem)
1896 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1897 else
1898 wPrevChar = ' ';
1899
1900 if (isalnumW(wPrevChar))
1901 break;
1902 }
1903
1904 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1905 if (chrgText)
1906 {
1907 chrgText->cpMin = nStart;
1908 chrgText->cpMax = nStart + nLen;
1909 }
1910 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1911 return nStart;
1912 }
1913 if (nCurEnd - nMatched == 0)
1914 {
1915 pCurItem = ME_FindItemBack(pCurItem, diRun);
1916 /* Don't care about pCurItem becoming NULL here; it's already taken
1917 * care of in the exterior loop condition */
1918 para = ME_GetParagraph(pCurItem);
1919 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1920 }
1921 }
1922 if (pCurItem)
1923 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1924 else
1925 wLastChar = ' ';
1926
1927 nEnd--;
1928 if (nEnd < 0)
1929 {
1930 item = ME_FindItemBack(item, diRun);
1931 para = ME_GetParagraph(item);
1932 nEnd = ME_StrLen(item->member.run.strText);
1933 }
1934 }
1935 }
1936 TRACE("not found\n");
1937 if (chrgText)
1938 chrgText->cpMin = chrgText->cpMax = -1;
1939 return -1;
1940 }
1941
1942 typedef struct tagME_GlobalDestStruct
1943 {
1944 HGLOBAL hData;
1945 int nLength;
1946 } ME_GlobalDestStruct;
1947
1948 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1949 {
1950 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1951 int i;
1952 WORD *pSrc, *pDest;
1953
1954 cb = cb >> 1;
1955 pDest = (WORD *)lpBuff;
1956 pSrc = GlobalLock(pData->hData);
1957 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1958 pDest[i] = pSrc[pData->nLength+i];
1959 }
1960 pData->nLength += i;
1961 *pcb = 2*i;
1962 GlobalUnlock(pData->hData);
1963 return 0;
1964 }
1965
1966 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1967 {
1968 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1969 int i;
1970 BYTE *pSrc, *pDest;
1971
1972 pDest = lpBuff;
1973 pSrc = GlobalLock(pData->hData);
1974 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1975 pDest[i] = pSrc[pData->nLength+i];
1976 }
1977 pData->nLength += i;
1978 *pcb = i;
1979 GlobalUnlock(pData->hData);
1980 return 0;
1981 }
1982
1983 static BOOL ME_Paste(ME_TextEditor *editor)
1984 {
1985 DWORD dwFormat = 0;
1986 EDITSTREAM es;
1987 ME_GlobalDestStruct gds;
1988 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1989 UINT cf = 0;
1990
1991 if (IsClipboardFormatAvailable(nRTFFormat))
1992 cf = nRTFFormat, dwFormat = SF_RTF;
1993 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1994 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1995 else
1996 return FALSE;
1997
1998 if (!OpenClipboard(editor->hWnd))
1999 return FALSE;
2000 gds.hData = GetClipboardData(cf);
2001 gds.nLength = 0;
2002 es.dwCookie = (DWORD)&gds;
2003 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2004 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2005
2006 CloseClipboard();
2007 return TRUE;
2008 }
2009
2010 static BOOL ME_Copy(ME_TextEditor *editor, CHARRANGE *range)
2011 {
2012 LPDATAOBJECT dataObj = NULL;
2013 HRESULT hr = S_OK;
2014
2015 if (editor->cPasswordMask)
2016 return FALSE; /* Copying or Cutting masked text isn't allowed */
2017
2018 if(editor->lpOleCallback)
2019 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, range, RECO_COPY, &dataObj);
2020 if(FAILED(hr) || !dataObj)
2021 hr = ME_GetDataObject(editor, range, &dataObj);
2022 if(SUCCEEDED(hr)) {
2023 hr = OleSetClipboard(dataObj);
2024 IDataObject_Release(dataObj);
2025 }
2026 return SUCCEEDED(hr) != 0;
2027 }
2028
2029 /* helper to send a msg filter notification */
2030 static BOOL
2031 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2032 {
2033 MSGFILTER msgf;
2034
2035 msgf.nmhdr.hwndFrom = editor->hWnd;
2036 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2037 msgf.nmhdr.code = EN_MSGFILTER;
2038 msgf.msg = msg;
2039
2040 msgf.wParam = *wParam;
2041 msgf.lParam = *lParam;
2042 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2043 return FALSE;
2044 *wParam = msgf.wParam;
2045 *lParam = msgf.lParam;
2046 msgf.wParam = *wParam;
2047
2048 return TRUE;
2049 }
2050
2051 static BOOL
2052 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2053 {
2054 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2055 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2056
2057 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2058 editor->nSelectionType = stPosition;
2059
2060 switch (nKey)
2061 {
2062 case VK_LEFT:
2063 case VK_RIGHT:
2064 case VK_HOME:
2065 case VK_END:
2066 editor->nUDArrowX = -1;
2067 /* fall through */
2068 case VK_UP:
2069 case VK_DOWN:
2070 case VK_PRIOR:
2071 case VK_NEXT:
2072 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2073 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2074 return TRUE;
2075 case VK_BACK:
2076 case VK_DELETE:
2077 editor->nUDArrowX = -1;
2078 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2079 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
2080 return FALSE;
2081 if (ME_IsSelection(editor))
2082 {
2083 ME_DeleteSelection(editor);
2084 ME_CommitUndo(editor);
2085 }
2086 else if (nKey == VK_DELETE)
2087 {
2088 /* Delete stops group typing.
2089 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2090 ME_DeleteTextAtCursor(editor, 1, 1);
2091 ME_CommitUndo(editor);
2092 }
2093 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2094 {
2095 BOOL bDeletionSucceeded;
2096 /* Backspace can be grouped for a single undo */
2097 ME_ContinueCoalescingTransaction(editor);
2098 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2099 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2100 /* Deletion was prevented so the cursor is moved back to where it was.
2101 * (e.g. this happens when trying to delete cell boundaries)
2102 */
2103 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2104 }
2105 ME_CommitCoalescingUndo(editor);
2106 }
2107 else
2108 return TRUE;
2109 ME_MoveCursorFromTableRowStartParagraph(editor);
2110 ME_UpdateSelectionLinkAttribute(editor);
2111 ME_UpdateRepaint(editor);
2112 ME_SendRequestResize(editor, FALSE);
2113 return TRUE;
2114 case 'A':
2115 if (ctrl_is_down)
2116 {
2117 ME_SetSelection(editor, 0, -1);
2118 return TRUE;
2119 }
2120 break;
2121 case 'V':
2122 if (ctrl_is_down)
2123 return ME_Paste(editor);
2124 break;
2125 case 'C':
2126 case 'X':
2127 if (ctrl_is_down)
2128 {
2129 CHARRANGE range;
2130 BOOL result;
2131
2132 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2133 result = ME_Copy(editor, &range);
2134 if (result && nKey == 'X')
2135 {
2136 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
2137 ME_CommitUndo(editor);
2138 ME_UpdateRepaint(editor);
2139 }
2140 return result;
2141 }
2142 break;
2143 case 'Z':
2144 if (ctrl_is_down)
2145 {
2146 ME_Undo(editor);
2147 return TRUE;
2148 }
2149 break;
2150 case 'Y':
2151 if (ctrl_is_down)
2152 {
2153 ME_Redo(editor);
2154 return TRUE;
2155 }
2156 break;
2157
2158 default:
2159 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2160 editor->nUDArrowX = -1;
2161 if (ctrl_is_down)
2162 {
2163 if (nKey == 'W')
2164 {
2165 CHARFORMAT2W chf;
2166 char buf[2048];
2167 chf.cbSize = sizeof(chf);
2168
2169 ME_GetSelectionCharFormat(editor, &chf);
2170 ME_DumpStyleToBuf(&chf, buf);
2171 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2172 }
2173 if (nKey == 'Q')
2174 {
2175 ME_CheckCharOffsets(editor);
2176 }
2177 }
2178 }
2179 return FALSE;
2180 }
2181
2182 /* Process the message and calculate the new click count.
2183 *
2184 * returns: The click count if it is mouse down event, else returns 0. */
2185 static int ME_CalculateClickCount(HWND hWnd, UINT msg, WPARAM wParam,
2186 LPARAM lParam)
2187 {
2188 static int clickNum = 0;
2189 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2190 return 0;
2191
2192 if ((msg == WM_LBUTTONDBLCLK) ||
2193 (msg == WM_RBUTTONDBLCLK) ||
2194 (msg == WM_MBUTTONDBLCLK) ||
2195 (msg == WM_XBUTTONDBLCLK))
2196 {
2197 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2198 }
2199
2200 if ((msg == WM_LBUTTONDOWN) ||
2201 (msg == WM_RBUTTONDOWN) ||
2202 (msg == WM_MBUTTONDOWN) ||
2203 (msg == WM_XBUTTONDOWN))
2204 {
2205 static MSG prevClickMsg;
2206 MSG clickMsg;
2207 clickMsg.hwnd = hWnd;
2208 clickMsg.message = msg;
2209 clickMsg.wParam = wParam;
2210 clickMsg.lParam = lParam;
2211 clickMsg.time = GetMessageTime();
2212 clickMsg.pt.x = (short)LOWORD(lParam);
2213 clickMsg.pt.y = (short)HIWORD(lParam);
2214 if ((clickNum != 0) &&
2215 (clickMsg.message == prevClickMsg.message) &&
2216 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2217 (clickMsg.wParam == prevClickMsg.wParam) &&
2218 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2219 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2220 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2221 {
2222 clickNum++;
2223 } else {
2224 clickNum = 1;
2225 }
2226 prevClickMsg = clickMsg;
2227 } else {
2228 return 0;
2229 }
2230 return clickNum;
2231 }
2232
2233 static BOOL ME_SetCursor(ME_TextEditor *editor)
2234 {
2235 POINT pt;
2236 BOOL isExact;
2237 int offset;
2238 SCROLLBARINFO sbi;
2239 DWORD messagePos = GetMessagePos();
2240 pt.x = (short)LOWORD(messagePos);
2241 pt.y = (short)HIWORD(messagePos);
2242
2243 sbi.cbSize = sizeof(sbi);
2244 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2245 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2246 PtInRect(&sbi.rcScrollBar, pt))
2247 {
2248 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2249 return TRUE;
2250 }
2251 sbi.cbSize = sizeof(sbi);
2252 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2253 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2254 PtInRect(&sbi.rcScrollBar, pt))
2255 {
2256 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2257 return TRUE;
2258 }
2259 ScreenToClient(editor->hWnd, &pt);
2260
2261 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
2262 (pt.x < editor->selofs ||
2263 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
2264 {
2265 SetCursor(hLeft);
2266 return TRUE;
2267 }
2268 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
2269 if (isExact)
2270 {
2271 if (editor->AutoURLDetect_bEnable)
2272 {
2273 ME_Cursor cursor;
2274 ME_Run *run;
2275 ME_CursorFromCharOfs(editor, offset, &cursor);
2276 run = &cursor.pRun->member.run;
2277 if (editor->AutoURLDetect_bEnable &&
2278 run->style->fmt.dwMask & CFM_LINK &&
2279 run->style->fmt.dwEffects & CFE_LINK)
2280 {
2281 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
2282 return TRUE;
2283 }
2284 }
2285 if (ME_IsSelection(editor))
2286 {
2287 int selStart, selEnd;
2288 ME_GetSelection(editor, &selStart, &selEnd);
2289 if (selStart <= offset && selEnd >= offset) {
2290 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2291 return TRUE;
2292 }
2293 }
2294 }
2295 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
2296 return TRUE;
2297 }
2298
2299 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2300 {
2301 CHARRANGE selrange;
2302 HMENU menu;
2303 int seltype = 0;
2304 if(!editor->lpOleCallback)
2305 return FALSE;
2306 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
2307 if(selrange.cpMin == selrange.cpMax)
2308 seltype |= SEL_EMPTY;
2309 else
2310 {
2311 /* FIXME: Handle objects */
2312 seltype |= SEL_TEXT;
2313 if(selrange.cpMax-selrange.cpMin > 1)
2314 seltype |= SEL_MULTICHAR;
2315 }
2316 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2317 {
2318 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
2319 DestroyMenu(menu);
2320 }
2321 return TRUE;
2322 }
2323
2324 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
2325 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2326 int i;
2327 ed->hWnd = hWnd;
2328 ed->bEmulateVersion10 = FALSE;
2329 ed->pBuffer = ME_MakeText();
2330 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2331 ME_MakeFirstParagraph(ed);
2332 /* The four cursors are for:
2333 * 0 - The position where the caret is shown
2334 * 1 - The anchored end of the selection (for normal selection)
2335 * 2 & 3 - The anchored start and end respectively for word, line,
2336 * or paragraph selection.
2337 */
2338 ed->nCursors = 4;
2339 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2340 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2341 ed->pCursors[0].nOffset = 0;
2342 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2343 ed->pCursors[1].nOffset = 0;
2344 ed->pCursors[2] = ed->pCursors[0];
2345 ed->pCursors[3] = ed->pCursors[1];
2346 ed->nLastTotalLength = ed->nTotalLength = 0;
2347 ed->nHeight = 0;
2348 ed->nUDArrowX = -1;
2349 ed->nSequence = 0;
2350 ed->rgbBackColor = -1;
2351 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2352 ed->bCaretAtEnd = FALSE;
2353 ed->nEventMask = 0;
2354 ed->nModifyStep = 0;
2355 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2356 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2357 ed->nUndoStackSize = 0;
2358 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2359 ed->nUndoMode = umAddToUndo;
2360 ed->nParagraphs = 1;
2361 ed->nLastSelStart = ed->nLastSelEnd = 0;
2362 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
2363 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & (WS_HSCROLL|ES_AUTOHSCROLL)) ? FALSE : TRUE;
2364 ed->bHideSelection = FALSE;
2365 ed->nInvalidOfs = -1;
2366 ed->pfnWordBreak = NULL;
2367 ed->lpOleCallback = NULL;
2368 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2369 ed->AutoURLDetect_bEnable = FALSE;
2370 ed->bHaveFocus = FALSE;
2371 for (i=0; i<HFONT_CACHE_SIZE; i++)
2372 {
2373 ed->pFontCache[i].nRefs = 0;
2374 ed->pFontCache[i].nAge = 0;
2375 ed->pFontCache[i].hFont = NULL;
2376 }
2377
2378 ME_CheckCharOffsets(ed);
2379 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
2380 ed->selofs = SELECTIONBAR_WIDTH;
2381 else
2382 ed->selofs = 0;
2383 ed->nSelectionType = stPosition;
2384
2385 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
2386 ed->cPasswordMask = '*';
2387 else
2388 ed->cPasswordMask = 0;
2389
2390 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2391
2392 /* Default vertical scrollbar information */
2393 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2394 ed->vert_si.nMin = 0;
2395 ed->vert_si.nMax = 0;
2396 ed->vert_si.nPage = 0;
2397 ed->vert_si.nPos = 0;
2398
2399 OleInitialize(NULL);
2400
2401 return ed;
2402 }
2403
2404 void ME_DestroyEditor(ME_TextEditor *editor)
2405 {
2406 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2407 ME_DisplayItem *p = pFirst, *pNext = NULL;
2408 int i;
2409
2410 ME_ClearTempStyle(editor);
2411 ME_EmptyUndoStack(editor);
2412 while(p) {
2413 pNext = p->next;
2414 ME_DestroyDisplayItem(p);
2415 p = pNext;
2416 }
2417 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2418 for (i=0; i<HFONT_CACHE_SIZE; i++)
2419 {
2420 if (editor->pFontCache[i].hFont)
2421 DeleteObject(editor->pFontCache[i].hFont);
2422 }
2423 if (editor->rgbBackColor != -1)
2424 DeleteObject(editor->hbrBackground);
2425 if(editor->lpOleCallback)
2426 IUnknown_Release(editor->lpOleCallback);
2427 OleUninitialize();
2428
2429 FREE_OBJ(editor->pBuffer);
2430 FREE_OBJ(editor->pCursors);
2431
2432 FREE_OBJ(editor);
2433 }
2434
2435 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2436 {
2437 TRACE("\n");
2438 switch (fdwReason)
2439 {
2440 case DLL_PROCESS_ATTACH:
2441 DisableThreadLibraryCalls(hinstDLL);
2442 me_heap = HeapCreate (0, 0x10000, 0);
2443 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2444 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2445 LookupInit();
2446 break;
2447
2448 case DLL_PROCESS_DETACH:
2449 UnregisterClassW(RichEdit20W, 0);
2450 UnregisterClassW(RichEdit50W, 0);
2451 UnregisterClassA("RichEdit20A", 0);
2452 UnregisterClassA("RichEdit50A", 0);
2453 if (ME_ListBoxRegistered)
2454 UnregisterClassW(REListBox20W, 0);
2455 if (ME_ComboBoxRegistered)
2456 UnregisterClassW(REComboBox20W, 0);
2457 LookupCleanup();
2458 HeapDestroy (me_heap);
2459 me_heap = NULL;
2460 break;
2461 }
2462 return TRUE;
2463 }
2464
2465
2466 #define UNSUPPORTED_MSG(e) \
2467 case e: \
2468 FIXME(#e ": stub\n"); \
2469 return DefWindowProcW(hWnd, msg, wParam, lParam);
2470
2471 static const char * const edit_messages[] = {
2472 "EM_GETSEL",
2473 "EM_SETSEL",
2474 "EM_GETRECT",
2475 "EM_SETRECT",
2476 "EM_SETRECTNP",
2477 "EM_SCROLL",
2478 "EM_LINESCROLL",
2479 "EM_SCROLLCARET",
2480 "EM_GETMODIFY",
2481 "EM_SETMODIFY",
2482 "EM_GETLINECOUNT",
2483 "EM_LINEINDEX",
2484 "EM_SETHANDLE",
2485 "EM_GETHANDLE",
2486 "EM_GETTHUMB",
2487 "EM_UNKNOWN_BF",
2488 "EM_UNKNOWN_C0",
2489 "EM_LINELENGTH",
2490 "EM_REPLACESEL",
2491 "EM_UNKNOWN_C3",
2492 "EM_GETLINE",
2493 "EM_LIMITTEXT",
2494 "EM_CANUNDO",
2495 "EM_UNDO",
2496 "EM_FMTLINES",
2497 "EM_LINEFROMCHAR",
2498 "EM_UNKNOWN_CA",
2499 "EM_SETTABSTOPS",
2500 "EM_SETPASSWORDCHAR",
2501 "EM_EMPTYUNDOBUFFER",
2502 "EM_GETFIRSTVISIBLELINE",
2503 "EM_SETREADONLY",
2504 "EM_SETWORDBREAKPROC",
2505 "EM_GETWORDBREAKPROC",
2506 "EM_GETPASSWORDCHAR",
2507 "EM_SETMARGINS",
2508 "EM_GETMARGINS",
2509 "EM_GETLIMITTEXT",
2510 "EM_POSFROMCHAR",
2511 "EM_CHARFROMPOS",
2512 "EM_SETIMESTATUS",
2513 "EM_GETIMESTATUS"
2514 };
2515
2516 static const char * const richedit_messages[] = {
2517 "EM_CANPASTE",
2518 "EM_DISPLAYBAND",
2519 "EM_EXGETSEL",
2520 "EM_EXLIMITTEXT",
2521 "EM_EXLINEFROMCHAR",
2522 "EM_EXSETSEL",
2523 "EM_FINDTEXT",
2524 "EM_FORMATRANGE",
2525 "EM_GETCHARFORMAT",
2526 "EM_GETEVENTMASK",
2527 "EM_GETOLEINTERFACE",
2528 "EM_GETPARAFORMAT",
2529 "EM_GETSELTEXT",
2530 "EM_HIDESELECTION",
2531 "EM_PASTESPECIAL",
2532 "EM_REQUESTRESIZE",
2533 "EM_SELECTIONTYPE",
2534 "EM_SETBKGNDCOLOR",
2535 "EM_SETCHARFORMAT",
2536 "EM_SETEVENTMASK",
2537 "EM_SETOLECALLBACK",
2538 "EM_SETPARAFORMAT",
2539 "EM_SETTARGETDEVICE",
2540 "EM_STREAMIN",
2541 "EM_STREAMOUT",
2542 "EM_GETTEXTRANGE",
2543 "EM_FINDWORDBREAK",
2544 "EM_SETOPTIONS",
2545 "EM_GETOPTIONS",
2546 "EM_FINDTEXTEX",
2547 "EM_GETWORDBREAKPROCEX",
2548 "EM_SETWORDBREAKPROCEX",
2549 "EM_SETUNDOLIMIT",
2550 "EM_UNKNOWN_USER_83",
2551 "EM_REDO",
2552 "EM_CANREDO",
2553 "EM_GETUNDONAME",
2554 "EM_GETREDONAME",
2555 "EM_STOPGROUPTYPING",
2556 "EM_SETTEXTMODE",
2557 "EM_GETTEXTMODE",
2558 "EM_AUTOURLDETECT",
2559 "EM_GETAUTOURLDETECT",
2560 "EM_SETPALETTE",
2561 "EM_GETTEXTEX",
2562 "EM_GETTEXTLENGTHEX",
2563 "EM_SHOWSCROLLBAR",
2564 "EM_SETTEXTEX",
2565 "EM_UNKNOWN_USER_98",
2566 "EM_UNKNOWN_USER_99",
2567 "EM_SETPUNCTUATION",
2568 "EM_GETPUNCTUATION",
2569 "EM_SETWORDWRAPMODE",
2570 "EM_GETWORDWRAPMODE",
2571 "EM_SETIMECOLOR",
2572 "EM_GETIMECOLOR",
2573 "EM_SETIMEOPTIONS",
2574 "EM_GETIMEOPTIONS",
2575 "EM_CONVPOSITION",
2576 "EM_UNKNOWN_USER_109",
2577 "EM_UNKNOWN_USER_110",
2578 "EM_UNKNOWN_USER_111",
2579 "EM_UNKNOWN_USER_112",
2580 "EM_UNKNOWN_USER_113",
2581 "EM_UNKNOWN_USER_114",
2582 "EM_UNKNOWN_USER_115",
2583 "EM_UNKNOWN_USER_116",
2584 "EM_UNKNOWN_USER_117",
2585 "EM_UNKNOWN_USER_118",
2586 "EM_UNKNOWN_USER_119",
2587 "EM_SETLANGOPTIONS",
2588 "EM_GETLANGOPTIONS",
2589 "EM_GETIMECOMPMODE",
2590 "EM_FINDTEXTW",
2591 "EM_FINDTEXTEXW",
2592 "EM_RECONVERSION",
2593 "EM_SETIMEMODEBIAS",
2594 "EM_GETIMEMODEBIAS"
2595 };
2596
2597 static const char *
2598 get_msg_name(UINT msg)
2599 {
2600 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2601 return edit_messages[msg - EM_GETSEL];
2602 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2603 return richedit_messages[msg - EM_CANPASTE];
2604 return "";
2605 }
2606
2607 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2608 LPARAM lParam, BOOL unicode)
2609 {
2610 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2611
2612 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2613 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2614
2615 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
2616 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2617 return 0;
2618 }
2619
2620 switch(msg) {
2621
2622 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2623 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2624 UNSUPPORTED_MSG(EM_FMTLINES)
2625 UNSUPPORTED_MSG(EM_FORMATRANGE)
2626 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2627 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2628 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2629 UNSUPPORTED_MSG(EM_GETIMESTATUS)
2630 UNSUPPORTED_MSG(EM_SETIMESTATUS)
2631 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2632 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2633 UNSUPPORTED_MSG(EM_GETREDONAME)
2634 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2635 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2636 UNSUPPORTED_MSG(EM_GETUNDONAME)
2637 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2638 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2639 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2640 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2641 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2642 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2643 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2644 UNSUPPORTED_MSG(EM_SETMARGINS)
2645 UNSUPPORTED_MSG(EM_SETPALETTE)
2646 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2647 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2648 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2649 UNSUPPORTED_MSG(WM_STYLECHANGING)
2650 UNSUPPORTED_MSG(WM_STYLECHANGED)
2651
2652 /* Messages specific to Richedit controls */
2653
2654 case EM_STREAMIN:
2655 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2656 case EM_STREAMOUT:
2657 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2658 case WM_GETDLGCODE:
2659 {
2660 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2661 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2662 {
2663 int vk = (int)((LPMSG)lParam)->wParam;
2664 /* if style says we want return key */
2665 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2666 {
2667 code |= DLGC_WANTMESSAGE;
2668 }
2669 /* we always handle ctrl-tab */
2670 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2671 {
2672 code |= DLGC_WANTMESSAGE;
2673 }
2674 }
2675 return code;
2676 }
2677 case WM_NCCREATE:
2678 {
2679 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2680 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2681 editor = ME_MakeEditor(hWnd);
2682 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2683 return TRUE;
2684 }
2685 case EM_EMPTYUNDOBUFFER:
2686 ME_EmptyUndoStack(editor);
2687 return 0;
2688 case EM_GETSEL:
2689 {
2690 /* Note: wParam/lParam can be NULL */
2691 UINT from, to;
2692 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2693 PUINT pto = lParam ? (PUINT)lParam : &to;
2694 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2695 if ((*pfrom|*pto) & 0xFFFF0000)
2696 return -1;
2697 return MAKELONG(*pfrom,*pto);
2698 }
2699 case EM_EXGETSEL:
2700 {
2701 CHARRANGE *pRange = (CHARRANGE *)lParam;
2702 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2703 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2704 return 0;
2705 }
2706 case EM_SETUNDOLIMIT:
2707 {
2708 if ((int)wParam < 0)
2709 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2710 else
2711 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2712 /* Setting a max stack size keeps wine from getting killed
2713 for hogging memory. Windows allocates all this memory at once, so
2714 no program would realistically set a value above our maximum. */
2715 return editor->nUndoLimit;
2716 }
2717 case EM_CANUNDO:
2718 return editor->pUndoStack != NULL;
2719 case EM_CANREDO:
2720 return editor->pRedoStack != NULL;
2721 case WM_UNDO: /* FIXME: actually not the same */
2722 case EM_UNDO:
2723 return ME_Undo(editor);
2724 case EM_REDO:
2725 return ME_Redo(editor);
2726 case EM_GETOPTIONS:
2727 {
2728 /* these flags are equivalent to the ES_* counterparts */
2729 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2730 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2731 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2732
2733 return settings;
2734 }
2735 case EM_SETOPTIONS:
2736 {
2737 /* these flags are equivalent to ES_* counterparts
2738 * ECO_READONLY is already implemented in the code, only requires
2739 * setting the bit to work
2740 */
2741 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2742 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2743 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2744 DWORD settings = mask & raw;
2745
2746 switch(wParam)
2747 {
2748 case ECOOP_SET:
2749 settings = lParam;
2750 break;
2751 case ECOOP_OR:
2752 settings |= lParam;
2753 break;
2754 case ECOOP_AND:
2755 settings &= lParam;
2756 break;
2757 case ECOOP_XOR:
2758 settings ^= lParam;
2759 }
2760 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2761
2762 if (settings & ECO_AUTOWORDSELECTION)
2763 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2764 if (settings & ECO_SELECTIONBAR)
2765 editor->selofs = SELECTIONBAR_WIDTH;
2766 else
2767 editor->selofs = 0;
2768 ME_WrapMarkedParagraphs(editor);
2769
2770 if (settings & ECO_VERTICAL)
2771 FIXME("ECO_VERTICAL not implemented yet!\n");
2772 if (settings & ECO_AUTOHSCROLL)
2773 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2774 if (settings & ECO_AUTOVSCROLL)
2775 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2776 if (settings & ECO_NOHIDESEL)
2777 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2778 if (settings & ECO_WANTRETURN)
2779 FIXME("ECO_WANTRETURN not implemented yet!\n");
2780
2781 return settings;
2782 }
2783 case EM_SETSEL:
2784 {
2785 ME_InvalidateSelection(editor);
2786 ME_SetSelection(editor, wParam, lParam);
2787 ME_InvalidateSelection(editor);
2788 HideCaret(editor->hWnd);
2789 ME_ShowCaret(editor);
2790 ME_SendSelChange(editor);
2791 return 0;
2792 }
2793 case EM_SETSCROLLPOS:
2794 {
2795 POINT *point = (POINT *)lParam;
2796 ME_ScrollAbs(editor, point->y);
2797 return 0;
2798 }
2799 case EM_AUTOURLDETECT:
2800 {
2801 if (wParam==1 || wParam ==0)
2802 {
2803 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2804 return 0;
2805 }
2806 return E_INVALIDARG;
2807 }
2808 case EM_GETAUTOURLDETECT:
2809 {
2810 return editor->AutoURLDetect_bEnable;
2811 }
2812 case EM_EXSETSEL:
2813 {
2814 int end;
2815 CHARRANGE range = *(CHARRANGE *)lParam;
2816
2817 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2818
2819 ME_InvalidateSelection(editor);
2820 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2821 ME_InvalidateSelection(editor);
2822 HideCaret(editor->hWnd);
2823 ME_ShowCaret(editor);
2824 ME_SendSelChange(editor);
2825
2826 return end;
2827 }
2828 case EM_SHOWSCROLLBAR:
2829 {
2830 ShowScrollBar(editor->hWnd, wParam, lParam);
2831 return 0;
2832 }
2833 case EM_SETTEXTEX:
2834 {
2835 LPWSTR wszText;
2836 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2837 size_t len;
2838 int from, to;
2839 ME_Style *style;
2840 int oldModify = editor->nModifyStep;
2841
2842 if (!pStruct) return 0;
2843
2844 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2845 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2846 pStruct->flags, pStruct->codepage);
2847
2848 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2849 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2850 len = wszText ? lstrlenW(wszText) : 0;
2851
2852 if (pStruct->flags & ST_SELECTION) {
2853 ME_GetSelection(editor, &from, &to);
2854 style = ME_GetSelectionInsertStyle(editor);
2855 ME_InternalDeleteText(editor, from, to - from, FALSE);
2856 if (pStruct->codepage != 1200 && lParam &&
2857 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
2858 ME_StreamInRTFString(editor, 1, (char *)lParam);
2859 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2860 ME_ReleaseStyle(style);
2861
2862 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2863 }
2864 else {
2865 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
2866 if (pStruct->codepage != 1200 && lParam &&
2867 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
2868 ME_StreamInRTFString(editor, 0, (char *)lParam);
2869 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2870 len = 1;
2871
2872 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2873 }
2874 ME_CommitUndo(editor);
2875 if (!(pStruct->flags & ST_KEEPUNDO))
2876 {
2877 editor->nModifyStep = oldModify;
2878 ME_EmptyUndoStack(editor);
2879 }
2880 ME_UpdateRepaint(editor);
2881 return len;
2882 }
2883 case EM_SETBKGNDCOLOR:
2884 {
2885 LRESULT lColor;
2886 if (editor->rgbBackColor != -1) {
2887 DeleteObject(editor->hbrBackground);
2888 lColor = editor->rgbBackColor;
2889 }
2890 else lColor = GetSysColor(COLOR_WINDOW);
2891
2892 if (wParam)
2893 {
2894 editor->rgbBackColor = -1;
2895 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2896 }
2897 else
2898 {
2899 editor->rgbBackColor = lParam;
2900 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2901 }
2902 InvalidateRect(hWnd, NULL, TRUE);
2903 UpdateWindow(hWnd);
2904 return lColor;
2905 }
2906 case EM_GETMODIFY:
2907 return editor->nModifyStep == 0 ? 0 : -1;
2908 case EM_SETMODIFY:
2909 {
2910 if (wParam)
2911 editor->nModifyStep = 1;
2912 else
2913 editor->nModifyStep = 0;
2914
2915 return 0;
2916 }
2917 case EM_SETREADONLY:
2918 {
2919 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2920 if (wParam)
2921 nStyle |= ES_READONLY;
2922 else
2923 nStyle &= ~ES_READONLY;
2924 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2925 return 0;
2926 }
2927 case EM_SETEVENTMASK:
2928 {
2929 DWORD nOldMask = editor->nEventMask;
2930
2931 editor->nEventMask = lParam;
2932 return nOldMask;
2933 }
2934 case EM_GETEVENTMASK:
2935 return editor->nEventMask;
2936 case EM_SETCHARFORMAT:
2937 {
2938 CHARFORMAT2W buf, *p;
2939 BOOL bRepaint = TRUE;
2940 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2941 if (p == NULL) return 0;
2942 if (!wParam)
2943 ME_SetDefaultCharFormat(editor, p);
2944 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2945 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2946 return 0;
2947 } else if (wParam == SCF_ALL) {
2948 if (editor->mode & TM_PLAINTEXT)
2949 ME_SetDefaultCharFormat(editor, p);
2950 else {
2951 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2952 editor->nModifyStep = 1;
2953 }
2954 } else if (editor->mode & TM_PLAINTEXT) {
2955 return 0;
2956 } else {
2957 int from, to;
2958 ME_GetSelection(editor, &from, &to);
2959 bRepaint = (from != to);
2960 ME_SetSelectionCharFormat(editor, p);
2961 if (from != to) editor->nModifyStep = 1;
2962 }
2963 ME_CommitUndo(editor);
2964 if (bRepaint)
2965 ME_RewrapRepaint(editor);
2966 return 1;
2967 }
2968 case EM_GETCHARFORMAT:
2969 {
2970 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2971 if (dst->cbSize != sizeof(CHARFORMATA) &&
2972 dst->cbSize != sizeof(CHARFORMATW) &&
2973 dst->cbSize != sizeof(CHARFORMAT2A) &&
2974 dst->cbSize != sizeof(CHARFORMAT2W))
2975 return 0;
2976 tmp.cbSize = sizeof(tmp);
2977 if (!wParam)
2978 ME_GetDefaultCharFormat(editor, &tmp);
2979 else
2980 ME_GetSelectionCharFormat(editor, &tmp);
2981 ME_CopyToCFAny(dst, &tmp);
2982 return tmp.dwMask;
2983 }
2984 case EM_SETPARAFORMAT:
2985 {
2986 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2987 ME_RewrapRepaint(editor);
2988 ME_CommitUndo(editor);
2989 return result;
2990 }
2991 case EM_GETPARAFORMAT:
2992 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2993 return ((PARAFORMAT2 *)lParam)->dwMask;
2994 case EM_GETFIRSTVISIBLELINE:
2995 {
2996 ME_DisplayItem *p = editor->pBuffer->pFirst;
2997 int y = ME_GetYScrollPos(editor);
2998 int ypara = 0;
2999 int count = 0;
3000 int ystart, yend;
3001 while(p) {
3002 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3003 if (p->type == diTextEnd)
3004 break;
3005 if (p->type == diParagraph) {
3006 ypara = p->member.para.pt.y;
3007 continue;
3008 }
3009 ystart = ypara + p->member.row.pt.y;
3010 yend = ystart + p->member.row.nHeight;
3011 if (y < yend) {
3012 break;
3013 }
3014 count++;
3015 }
3016 return count;
3017 }
3018 case EM_HIDESELECTION:
3019 {
3020 editor->bHideSelection = (wParam != 0);
3021 ME_InvalidateSelection(editor);
3022 return 0;
3023 }
3024 case EM_LINESCROLL:
3025 {
3026 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3027 return TRUE; /* Should return false if a single line richedit control */
3028 }
3029 case WM_CLEAR:
3030 {
3031 int from, to;
3032 ME_GetSelection(editor, &from, &to);
3033 ME_InternalDeleteText(editor, from, to-from, FALSE);
3034 ME_CommitUndo(editor);
3035 ME_UpdateRepaint(editor);
3036 return 0;
3037 }
3038 case EM_REPLACESEL:
3039 {
3040 int from, to;
3041 ME_Style *style;
3042 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3043 size_t len = wszText ? lstrlenW(wszText) : 0;
3044 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3045
3046 ME_GetSelection(editor, &from, &to);
3047 style = ME_GetSelectionInsertStyle(editor);
3048 ME_InternalDeleteText(editor, from, to-from, FALSE);
3049 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3050 ME_ReleaseStyle(style);
3051 /* drop temporary style if line end */
3052 /*
3053 * FIXME question: does abc\n mean: put abc,
3054 * clear temp style, put \n? (would require a change)
3055 */
3056 if (len>0 && wszText[len-1] == '\n')
3057 ME_ClearTempStyle(editor);
3058 ME_EndToUnicode(unicode, wszText);
3059 ME_CommitUndo(editor);
3060 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3061 if (!wParam)
3062 ME_EmptyUndoStack(editor);
3063 ME_UpdateRepaint(editor);
3064 return len;
3065 }
3066 case EM_SCROLLCARET:
3067 {
3068 int top, bottom; /* row's edges relative to document top */
3069 int nPos;
3070 ME_DisplayItem *para, *row;
3071
3072 nPos = ME_GetYScrollPos(editor);
3073 row = ME_RowStart(editor->pCursors[0].pRun);
3074 para = ME_GetParagraph(row);
3075 top = para->member.para.pt.y + row->member.row.pt.y;
3076 bottom = top + row->member.row.nHeight;
3077
3078 if (top < nPos) /* caret above window */
3079 ME_ScrollAbs(editor, top);
3080 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
3081 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
3082 return 0;
3083 }
3084 case WM_SETFONT:
3085 {
3086 LOGFONTW lf;
3087 CHARFORMAT2W fmt;
3088 HDC hDC;
3089 BOOL bRepaint = LOWORD(lParam);
3090
3091 if (!wParam)
3092 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3093 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3094 hDC = GetDC(hWnd);
3095 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3096 ReleaseDC(hWnd, hDC);
3097 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
3098 ME_SetDefaultCharFormat(editor, &fmt);
3099
3100 ME_CommitUndo(editor);
3101 if (bRepaint)
3102 ME_RewrapRepaint(editor);
3103 return 0;
3104 }
3105 case WM_SETTEXT:
3106 {
3107 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3108 if (lParam)
3109 {
3110 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3111 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
3112 {
3113 /* Undocumented: WM_SETTEXT supports RTF text */
3114 ME_StreamInRTFString(editor, 0, (char *)lParam);
3115 }
3116 else
3117 {
3118 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3119 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3120 if (lstrlenW(wszText) > 0)
3121 {
3122 int len = -1;
3123
3124 /* uses default style! */
3125 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3126 {
3127 WCHAR * p;
3128
3129 p = wszText;
3130 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3131 len = p - wszText;
3132 }
3133 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3134 }
3135 ME_EndToUnicode(unicode, wszText);
3136 }
3137 }
3138 else
3139 TRACE("WM_SETTEXT - NULL\n");
3140 if (editor->AutoURLDetect_bEnable)
3141 {
3142 ME_UpdateLinkAttribute(editor, 0, -1);
3143 }
3144 ME_SetSelection(editor, 0, 0);
3145 editor->nModifyStep = 0;
3146 ME_CommitUndo(editor);
3147 ME_EmptyUndoStack(editor);
3148 ME_UpdateRepaint(editor);
3149 return 1;
3150 }
3151 case EM_CANPASTE:
3152 {
3153 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3154 if (IsClipboardFormatAvailable(nRTFFormat))
3155 return TRUE;
3156 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3157 return TRUE;
3158 return FALSE;
3159 }
3160 case WM_PASTE:
3161 ME_Paste(editor);
3162 return 0;
3163 case WM_CUT:
3164 case WM_COPY:
3165 {
3166 CHARRANGE range;
3167 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
3168
3169 if (ME_Copy(editor, &range) && msg == WM_CUT)
3170 {
3171 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
3172 ME_CommitUndo(editor);
3173 ME_UpdateRepaint(editor);
3174 }
3175 return 0;
3176 }
3177 case WM_GETTEXTLENGTH:
3178 {
3179 GETTEXTLENGTHEX how;
3180
3181 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3182 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3183 how.codepage = unicode ? 1200 : CP_ACP;
3184 return ME_GetTextLengthEx(editor, &how);
3185 }
3186 case EM_GETTEXTLENGTHEX:
3187 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3188 case WM_GETTEXT:
3189 {
3190 GETTEXTEX ex;
3191 LRESULT rc;
3192 LPSTR bufferA = NULL;
3193 LPWSTR bufferW = NULL;
3194
3195 if (unicode)
3196 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
3197 else
3198 bufferA = heap_alloc(wParam + 2);
3199
3200 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3201 ex.flags = GT_USECRLF;
3202 ex.codepage = unicode ? 1200 : CP_ACP;
3203 ex.lpDefaultChar = NULL;
3204 ex.lpUsedDefChar = NULL;
3205 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
3206
3207 if (unicode)
3208 {
3209 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
3210 if (strlenW(bufferW) >= wParam) rc = 0;
3211 }
3212 else
3213 {
3214 memcpy((LPSTR)lParam, bufferA, wParam);
3215 if (strlen(bufferA) >= wParam) rc = 0;
3216 }
3217 heap_free(bufferA);
3218 heap_free(bufferW);
3219 return rc;
3220 }
3221 case EM_GETTEXTEX:
3222 {
3223 GETTEXTEX *ex = (GETTEXTEX*)wParam;
3224 int nStart, nCount; /* in chars */
3225
3226 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
3227 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
3228
3229 if (ex->flags & GT_SELECTION)
3230 {
3231 ME_GetSelection(editor, &nStart, &nCount);
3232 nCount -= nStart;
3233 }
3234 else
3235 {
3236 nStart = 0;
3237 nCount = 0x7fffffff;
3238 }
3239 if (ex->codepage == 1200)
3240 {
3241 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
3242 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
3243 }
3244 else
3245 {
3246 /* potentially each char may be a CR, why calculate the exact value with O(N) when
3247 we can just take a bigger buffer? :)
3248 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
3249 occurs only in richedit 2.0 mode, in which line breaks have only one CR
3250 */
3251 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
3252 LPWSTR buffer;
3253 DWORD buflen = ex->cb;
3254 LRESULT rc;
3255 DWORD flags = 0;
3256
3257 nCount = min(nCount, ex->cb - 1);
3258 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
3259
3260 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
3261 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
3262 if (rc) rc--; /* do not count 0 terminator */
3263
3264 heap_free(buffer);
3265 return rc;
3266 }
3267 }
3268 case EM_GETSELTEXT:
3269 {
3270 int from, to;
3271 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
3272 ME_GetSelection(editor, &from, &to);
3273 tr.chrg.cpMin = from;
3274 tr.chrg.cpMax = to;
3275 tr.lpstrText = (WCHAR *)lParam;
3276 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
3277 }
3278 case EM_GETSCROLLPOS:
3279 {
3280 POINT *point = (POINT *)lParam;
3281 point->x = 0; /* FIXME side scrolling not implemented */
3282 point->y = ME_GetYScrollPos(editor);
3283 return 1;
3284 }
3285 case EM_GETTEXTRANGE:
3286 {
3287 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3288 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
3289 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
3290 editor->bEmulateVersion10, ME_GetTextLength(editor));
3291 if (unicode)
3292 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
3293 else
3294 {
3295 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
3296 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
3297 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
3298 /* FIXME this is a potential security hole (buffer overrun)
3299 if you know more about wchar->mbyte conversion please explain
3300 */
3301 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
3302 FREE_OBJ(p);
3303 return nChars;
3304 }
3305 }
3306 case EM_GETLINE:
3307 {
3308 ME_DisplayItem *run;
3309 const unsigned int nMaxChars = *(WORD *) lParam;
3310 unsigned int nCharsLeft = nMaxChars;
3311 char *dest = (char *) lParam;
3312 BOOL wroteNull = FALSE;
3313
3314 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3315 unicode ? "Unicode" : "Ansi");
3316
3317 run = ME_FindRowWithNumber(editor, wParam);
3318 if (run == NULL)
3319 return 0;
3320
3321 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3322 && !(run->member.run.nFlags & MERF_ENDPARA))
3323 {
3324 unsigned int nCopy;
3325 ME_String *strText;
3326 if (run->type != diRun)
3327 break;
3328 strText = run->member.run.strText;
3329 nCopy = min(nCharsLeft, strText->nLen);
3330
3331 if (unicode)
3332 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
3333 else
3334 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3335 nCharsLeft, NULL, NULL);
3336 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3337 nCharsLeft -= nCopy;
3338 }
3339
3340 /* append line termination, space allowing */
3341 if (nCharsLeft > 0)
3342 {
3343 if (run && (run->member.run.nFlags & MERF_ENDPARA))
3344 {
3345 int i;
3346 /* Write as many \r as encoded in end-of-paragraph, space allowing */
3347 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
3348 {
3349 *((WCHAR *)dest) = '\r';
3350 dest += unicode ? sizeof(WCHAR) : 1;
3351 }
3352 /* Write as many \n as encoded in end-of-paragraph, space allowing */
3353 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
3354 {
3355 *((WCHAR *)dest) = '\n';
3356 dest += unicode ? sizeof(WCHAR) : 1;
3357 }
3358 }
3359 if (nCharsLeft > 0)
3360 {
3361 if (unicode)
3362 *((WCHAR *)dest) = '\0';
3363 else
3364 *dest = '\0';
3365 nCharsLeft--;
3366 wroteNull = TRUE;
3367 }
3368 }
3369
3370 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3371 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3372 }
3373 case EM_GETLINECOUNT:
3374 {
3375 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3376 int nRows = 0;
3377
3378 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3379
3380 while (item != editor->pBuffer->pLast)
3381 {
3382 assert(item->type == diParagraph);
3383 prev_para = ME_FindItemBack(item, diRun);
3384 if (prev_para) {
3385 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3386 }
3387 nRows += item->member.para.nRows;
3388 item = item->member.para.next_para;
3389 }
3390 last_para = ME_FindItemBack(item, diRun);
3391 assert(last_para);
3392 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3393 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
3394 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
3395 {
3396 /* In 1.0 emulation, the last solitary \r at the very end of the text
3397 (if one exists) is NOT a line break.
3398 FIXME: this is an ugly hack. This should have a more regular model. */
3399 nRows--;
3400 }
3401
3402 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3403 return max(1, nRows);
3404 }
3405 case EM_LINEFROMCHAR:
3406 {
3407 if (wParam == -1)
3408 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
3409 else
3410 return ME_RowNumberFromCharOfs(editor, wParam);
3411 }
3412 case EM_EXLINEFROMCHAR:
3413 {
3414 if (lParam == -1)
3415 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
3416 else
3417 return ME_RowNumberFromCharOfs(editor, lParam);
3418 }
3419 case EM_LINEINDEX:
3420 {
3421 ME_DisplayItem *item, *para;
3422 int nCharOfs;
3423
3424 if (wParam == -1)
3425 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3426 else
3427 item = ME_FindRowWithNumber(editor, wParam);
3428 if (!item)
3429 return -1;
3430 para = ME_GetParagraph(item);
3431 item = ME_FindItemFwd(item, diRun);
3432 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3433 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3434 return nCharOfs;
3435 }
3436 case EM_LINELENGTH:
3437 {
3438 ME_DisplayItem *item, *item_end;
3439 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3440
3441 if (wParam > ME_GetTextLength(editor))
3442 return 0;
3443 if (wParam == -1)
3444 {
3445 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3446 return 0;
3447 }
3448 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
3449 item = ME_RowStart(item);
3450 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
3451 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3452 if (item_end->type == diStartRow)
3453 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
3454 else
3455 {
3456 ME_DisplayItem *endPara;
3457
3458 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
3459 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
3460 endPara = ME_FindItemBack(endPara, diRun);
3461 assert(endPara);
3462 assert(endPara->type == diRun);
3463 assert(endPara->member.run.nFlags & MERF_ENDPARA);
3464 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
3465 }
3466 nChars = nNextLineOfs - nThisLineOfs;
3467 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3468 return nChars;
3469 }
3470 case EM_EXLIMITTEXT:
3471 {
3472 if ((int)lParam < 0)
3473 return 0;
3474 if (lParam == 0)
3475 editor->nTextLimit = 65536;
3476 else
3477 editor->nTextLimit = (int) lParam;
3478 return 0;
3479 }
3480 case EM_LIMITTEXT:
3481 {
3482 if (wParam == 0)
3483 editor->nTextLimit = 65536;
3484 else
3485 editor->nTextLimit = (int) wParam;
3486 return 0;
3487 }
3488 case EM_GETLIMITTEXT:
3489 {
3490 return editor->nTextLimit;
3491 }
3492 case EM_FINDTEXT:
3493 {
3494 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3495 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3496 WCHAR *tmp;
3497 LRESULT r;
3498
3499 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3500 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3501 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3502 FREE_OBJ( tmp );
3503 return r;
3504 }
3505 case EM_FINDTEXTEX:
3506 {
3507 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3508 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3509 WCHAR *tmp;
3510 LRESULT r;
3511
3512 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3513 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3514 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3515 FREE_OBJ( tmp );
3516 return r;
3517 }
3518 case EM_FINDTEXTW:
3519 {
3520 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3521 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3522 }
3523 case EM_FINDTEXTEXW:
3524 {
3525 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3526 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3527 }
3528 case EM_GETZOOM:
3529 if (!wParam || !lParam)
3530 return FALSE;
3531 *(int *)wParam = editor->nZoomNumerator;
3532 *(int *)lParam = editor->nZoomDenominator;
3533 return TRUE;
3534 case EM_SETZOOM:
3535 return ME_SetZoom(editor, wParam, lParam);
3536 case EM_CHARFROMPOS:
3537 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3538 case EM_POSFROMCHAR:
3539 {
3540 ME_DisplayItem *pRun;
3541 int nCharOfs, nOffset, nLength;
3542 POINTL pt = {0,0};
3543 SCROLLINFO si;
3544
3545 nCharOfs = wParam;
3546 /* detect which API version we're dealing with */
3547 if (wParam >= 0x40000)
3548 nCharOfs = lParam;
3549 nLength = ME_GetTextLength(editor);
3550 nCharOfs = min(nCharOfs, nLength);
3551 nCharOfs = max(nCharOfs, 0);
3552
3553 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
3554 assert(pRun->type == diRun);
3555 pt.y = pRun->member.run.pt.y;
3556 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3557 pt.y += ME_GetParagraph(pRun)->member.para.pt.y;
3558 pt.x += editor->selofs;
3559 pt.x++; /* for some reason native offsets x by one */
3560
3561 si.cbSize = sizeof(si);
3562 si.fMask = SIF_POS;
3563 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
3564 si.cbSize = sizeof(si);
3565 si.fMask = SIF_POS;
3566 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3567
3568 if (wParam >= 0x40000) {
3569 *(POINTL *)wParam = pt;
3570 }
3571 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3572 }
3573 case WM_CREATE:
3574 {
3575 SCROLLINFO si;
3576
3577 GetClientRect(hWnd, &editor->rcFormat);
3578 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
3579 { /* Squelch the default horizontal scrollbar it would make */
3580 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3581 }
3582
3583 si.cbSize = sizeof(si);
3584 si.fMask = SIF_PAGE | SIF_RANGE;
3585 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_DISABLENOSCROLL)
3586 si.fMask |= SIF_DISABLENOSCROLL;
3587 si.nMax = (si.fMask & SIF_DISABLENOSCROLL) ? 1 : 0;
3588 si.nMin = 0;
3589 si.nPage = 0;
3590 SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
3591
3592 ME_CommitUndo(editor);
3593 ME_WrapMarkedParagraphs(editor);
3594 ME_MoveCaret(editor);
3595 return 0;
3596 }
3597 case WM_DESTROY:
3598 ME_DestroyEditor(editor);
3599 SetWindowLongPtrW(hWnd, 0, 0);
3600 return 0;
3601 case WM_SETCURSOR:
3602 {
3603 return ME_SetCursor(editor);
3604 }
3605 case WM_LBUTTONDBLCLK:
3606 case WM_LBUTTONDOWN:
3607 {
3608 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3609 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3610 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3611 return 0;
3612 SetFocus(hWnd);
3613 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3614 ME_CalculateClickCount(hWnd, msg, wParam, lParam));
3615 SetCapture(hWnd);
3616 ME_LinkNotify(editor,msg,wParam,lParam);
3617 if (!ME_SetCursor(editor)) goto do_default;
3618 break;
3619 }
3620 case WM_MOUSEMOVE:
3621 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3622 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3623 return 0;
3624 if (GetCapture() == hWnd)
3625 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3626 ME_LinkNotify(editor,msg,wParam,lParam);
3627 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3628 if (GetCapture() == hWnd)
3629 ME_SetCursor(editor);
3630 break;
3631 case WM_LBUTTONUP:
3632 if (GetCapture() == hWnd)
3633 ReleaseCapture();
3634 if (editor->nSelectionType == stDocument)
3635 editor->nSelectionType = stPosition;
3636 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3637 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3638 return 0;
3639 else
3640 {
3641 ME_SetCursor(editor);
3642 ME_LinkNotify(editor,msg,wParam,lParam);
3643 }
3644 break;
3645 case WM_RBUTTONUP:
3646 case WM_RBUTTONDOWN:
3647 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3648 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3649 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3650 return 0;
3651 goto do_default;
3652 case WM_CONTEXTMENU:
3653 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3654 goto do_default;
3655 break;
3656 case WM_PAINT:
3657 {
3658 HDC hDC;
3659 PAINTSTRUCT ps;
3660
3661 hDC = BeginPaint(hWnd, &ps);
3662 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3663 EndPaint(hWnd, &ps);
3664 }
3665 break;
3666 case WM_SETFOCUS:
3667 editor->bHaveFocus = TRUE;
3668 ME_ShowCaret(editor);
3669 ME_SendOldNotify(editor, EN_SETFOCUS);
3670 return 0;
3671 case WM_KILLFOCUS:
3672 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3673 editor->bHaveFocus = FALSE;
3674 ME_HideCaret(editor);
3675 ME_SendOldNotify(editor, EN_KILLFOCUS);
3676 return 0;
3677 case WM_ERASEBKGND:
3678 {
3679 HDC hDC = (HDC)wParam;
3680 RECT rc;
3681 if (GetUpdateRect(hWnd,&rc,TRUE))
3682 {
3683 FillRect(hDC, &rc, editor->hbrBackground);
3684 }
3685 return 1;
3686 }
3687 case WM_COMMAND:
3688 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3689 return 0;
3690 case WM_KEYUP:
3691 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3692 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3693 return 0;
3694 goto do_default;
3695 case WM_KEYDOWN:
3696 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3697 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3698 return 0;
3699 if (ME_KeyDown(editor, LOWORD(wParam)))
3700 return 0;
3701 goto do_default;
3702 case WM_CHAR:
3703 {
3704 WCHAR wstr;
3705
3706 if (unicode)
3707 wstr = (WCHAR)wParam;
3708 else
3709 {
3710 CHAR charA = wParam;
3711 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3712 }
3713
3714 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3715 MessageBeep(MB_ICONERROR);
3716 return 0; /* FIXME really 0 ? */
3717 }
3718
3719 if (((unsigned)wstr)>=' '
3720 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3721 || wstr=='\t') {
3722 ME_Cursor cursor = editor->pCursors[0];
3723 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
3724 int from, to;
3725 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
3726 ME_GetSelection(editor, &from, &to);
3727 if (wstr=='\t'
3728 /* v4.1 allows tabs to be inserted with ctrl key down */
3729 && !(ctrl_is_down && !editor->bEmulateVersion10)
3730 )
3731 {
3732 ME_DisplayItem *para;
3733 BOOL bSelectedRow = FALSE;
3734
3735 para = ME_GetParagraph(cursor.pRun);
3736 if (ME_IsSelection(editor) &&
3737 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
3738 to == ME_GetCursorOfs(editor, 0) &&
3739 para->member.para.prev_para->type == diParagraph)
3740 {
3741 para = para->member.para.prev_para;
3742 bSelectedRow = TRUE;
3743 }
3744 if (ME_IsInTable(para))
3745 {
3746 ME_TabPressedInTable(editor, bSelectedRow);
3747 ME_CommitUndo(editor);
3748 return 0;
3749 }
3750 } else if (!editor->bEmulateVersion10) { /* v4.1 */
3751 if (para->member.para.nFlags & MEPF_ROWEND) {
3752 if (wstr=='\r') {
3753 /* Add a new table row after this row. */
3754 para = ME_AppendTableRow(editor, para);
3755 para = para->member.para.next_para;
3756 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3757 editor->pCursors[0].nOffset = 0;
3758 editor->pCursors[1] = editor->pCursors[0];
3759 ME_CommitUndo(editor);
3760 ME_CheckTablesForCorruption(editor);
3761 ME_UpdateRepaint(editor);
3762 return 0;
3763 } else if (from == to) {
3764 para = para->member.para.next_para;
3765 if (para->member.para.nFlags & MEPF_ROWSTART)
3766 para = para->member.para.next_para;
3767 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3768 editor->pCursors[0].nOffset = 0;
3769 editor->pCursors[1] = editor->pCursors[0];
3770 }
3771 }
3772 else if (para == ME_GetParagraph(editor->pCursors[1].pRun) &&
3773 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
3774 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
3775 !para->member.para.prev_para->member.para.nCharOfs)
3776 {
3777 /* Insert a newline before the table. */
3778 WCHAR endl = '\r';
3779 para = para->member.para.prev_para;
3780 para->member.para.nFlags &= ~MEPF_ROWSTART;
3781 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3782 editor->pCursors[1] = editor->pCursors[0];
3783 ME_InsertTextFromCursor(editor, 0, &endl, 1,
3784 editor->pCursors[0].pRun->member.run.style);
3785 para = editor->pBuffer->pFirst->member.para.next_para;
3786 ME_SetDefaultParaFormat(para->member.para.pFmt);
3787 para->member.para.nFlags = MEPF_REWRAP;
3788 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3789 editor->pCursors[1] = editor->pCursors[0];
3790 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
3791 ME_CommitCoalescingUndo(editor);
3792 ME_CheckTablesForCorruption(editor);
3793 ME_UpdateRepaint(editor);
3794 return 0;
3795 }
3796 } else { /* v1.0 - 3.0 */
3797 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
3798 if (ME_IsInTable(cursor.pRun))
3799 {
3800 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
3801 {
3802 if (from == to) {
3803 if (wstr=='\r') {
3804 ME_ContinueCoalescingTransaction(editor);
3805 para = ME_AppendTableRow(editor, para);
3806 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3807 editor->pCursors[0].nOffset = 0;
3808 editor->pCursors[1] = editor->pCursors[0];
3809 ME_CommitCoalescingUndo(editor);
3810 ME_UpdateRepaint(editor);
3811 } else {
3812 /* Text should not be inserted at the end of the table. */
3813 MessageBeep(-1);
3814 }
3815 return 0;
3816 }
3817 } else if (wstr == '\r') {
3818 ME_ContinueCoalescingTransaction(editor);
3819 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
3820 !ME_IsInTable(para->member.para.prev_para))
3821 {
3822 /* Insert newline before table */
3823 WCHAR endl = '\r';
3824 cursor.pRun = ME_FindItemBack(para, diRun);
3825 if (cursor.pRun)
3826 editor->pCursors[0].pRun = cursor.pRun;
3827 editor->pCursors[0].nOffset = 0;
3828 editor->pCursors[1] = editor->pCursors[0];
3829 ME_InsertTextFromCursor(editor, 0, &endl, 1,
3830 editor->pCursors[0].pRun->member.run.style);
3831 } else {
3832 editor->pCursors[1] = editor->pCursors[0];
3833 para = ME_AppendTableRow(editor, para);
3834 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3835 editor->pCursors[0].nOffset = 0;
3836 editor->pCursors[1] = editor->pCursors[0];
3837 }
3838 ME_CommitCoalescingUndo(editor);
3839 ME_UpdateRepaint(editor);
3840 return 0;
3841 }
3842 }
3843 }
3844 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3845 /* WM_CHAR is restricted to nTextLimit */
3846 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3847 {
3848 ME_Style *style = ME_GetInsertStyle(editor, 0);
3849 ME_SaveTempStyle(editor);
3850 ME_ContinueCoalescingTransaction(editor);
3851 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3852 ME_InsertEndRowFromCursor(editor, 0);
3853 else
3854 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3855 ME_ReleaseStyle(style);
3856 ME_CommitCoalescingUndo(editor);
3857 SetCursor(NULL);
3858 }
3859
3860 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3861
3862 ME_UpdateRepaint(editor);
3863 }
3864 return 0;
3865 }
3866 case WM_UNICHAR:
3867 if (unicode)
3868 {
3869 if(wParam == UNICODE_NOCHAR) return TRUE;
3870 if(wParam <= 0x000fffff)
3871 {
3872 if(wParam > 0xffff) /* convert to surrogates */
3873 {
3874 wParam -= 0x10000;
3875 SendMessageW(editor->hWnd, WM_CHAR, (wParam >> 10) + 0xd800, 0);
3876 SendMessageW(editor->hWnd, WM_CHAR, (wParam & 0x03ff) + 0xdc00, 0);
3877 }
3878 else SendMessageW(editor->hWnd, WM_CHAR, wParam, 0);
3879 }
3880 return 0;
3881 }
3882 break;
3883 case EM_STOPGROUPTYPING:
3884 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3885 return 0;
3886 case EM_SCROLL: /* fall through */
3887 case WM_VSCROLL:
3888 {
3889 int origNPos;
3890 int lineHeight;
3891
3892 origNPos = ME_GetYScrollPos(editor);
3893 lineHeight = 24;
3894
3895 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3896 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3897 if (lineHeight <= 0) lineHeight = 24;
3898
3899 switch(LOWORD(wParam))
3900 {
3901 case SB_LINEUP:
3902 ME_ScrollUp(editor,lineHeight);
3903 break;
3904 case SB_LINEDOWN:
3905 ME_ScrollDown(editor,lineHeight);
3906 break;
3907 case SB_PAGEUP:
3908 ME_ScrollUp(editor,editor->sizeWindow.cy);
3909 break;
3910 case SB_PAGEDOWN:
3911 ME_ScrollDown(editor,editor->sizeWindow.cy);
3912 break;
3913 case SB_THUMBTRACK:
3914 case SB_THUMBPOSITION:
3915 ME_ScrollAbs(editor,HIWORD(wParam));
3916 break;
3917 }
3918 if (msg == EM_SCROLL)
3919 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
3920 break;
3921 }
3922 case WM_MOUSEWHEEL:
3923 {
3924 int gcWheelDelta;
3925 UINT pulScrollLines;
3926
3927 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3928 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3929 return 0;
3930
3931 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
3932 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
3933
3934 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
3935 {
3936 /* FIXME follow the original */
3937 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
3938 }
3939 break;
3940 }
3941 case EM_GETRECT:
3942 {
3943 *((RECT *)lParam) = editor->rcFormat;
3944 return 0;
3945 }
3946 case EM_SETRECT:
3947 case EM_SETRECTNP:
3948 {
3949 if (lParam)
3950 {
3951 RECT *rc = (RECT *)lParam;
3952
3953 if (wParam)
3954 {
3955 editor->rcFormat.left += rc->left;
3956 editor->rcFormat.top += rc->top;
3957 editor->rcFormat.right += rc->right;
3958 editor->rcFormat.bottom += rc->bottom;
3959 }
3960 else
3961 {
3962 editor->rcFormat = *rc;
3963 }
3964 }
3965 else
3966 {
3967 GetClientRect(hWnd, &editor->rcFormat);
3968 }
3969 if (msg != EM_SETRECTNP)
3970 ME_RewrapRepaint(editor);
3971 return 0;
3972 }
3973 case EM_REQUESTRESIZE:
3974 ME_SendRequestResize(editor, TRUE);
3975 return 0;
3976 case WM_SETREDRAW:
3977 return DefWindowProcW(hWnd, msg, wParam, lParam);
3978 case WM_SIZE:
3979 {
3980 GetClientRect(hWnd, &editor->rcFormat);
3981 ME_RewrapRepaint(editor);
3982 return DefWindowProcW(hWnd, msg, wParam, lParam);
3983 }
3984 /* IME messages to make richedit controls IME aware */
3985 case WM_IME_SETCONTEXT:
3986 case WM_IME_CONTROL:
3987 case WM_IME_SELECT:
3988 case WM_IME_COMPOSITIONFULL:
3989 return 0;
3990 case WM_IME_STARTCOMPOSITION:
3991 {
3992 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
3993 ME_DeleteSelection(editor);
3994 ME_CommitUndo(editor);
3995 ME_UpdateRepaint(editor);
3996 return 0;
3997 }
3998 case WM_IME_COMPOSITION:
3999 {
4000 HIMC hIMC;
4001
4002 ME_Style *style = ME_GetInsertStyle(editor, 0);
4003 hIMC = ImmGetContext(hWnd);
4004 ME_DeleteSelection(editor);
4005 ME_CommitUndo(editor);
4006 ME_SaveTempStyle(editor);
4007 if (lParam & GCS_RESULTSTR)
4008 {
4009 LPWSTR lpCompStr = NULL;
4010 DWORD dwBufLen;
4011
4012 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4013 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4014 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
4015 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4016 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4017 }
4018 else if (lParam & GCS_COMPSTR)
4019 {
4020 LPWSTR lpCompStr = NULL;
4021 DWORD dwBufLen;
4022
4023 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4024 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4025 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4026 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4027
4028 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4029 ME_SetSelection(editor,editor->imeStartIndex,
4030 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4031 }
4032 ME_ReleaseStyle(style);
4033 ME_UpdateRepaint(editor);
4034 return 0;
4035 }
4036 case WM_IME_ENDCOMPOSITION:
4037 {
4038 ME_DeleteSelection(editor);
4039 editor->imeStartIndex=-1;
4040 return 0;
4041 }
4042 case EM_GETOLEINTERFACE:
4043 {
4044 LPVOID *ppvObj = (LPVOID*) lParam;
4045 return CreateIRichEditOle(editor, ppvObj);
4046 }
4047 case EM_GETPASSWORDCHAR:
4048 {
4049 return editor->cPasswordMask;
4050 }
4051 case EM_SETOLECALLBACK:
4052 if(editor->lpOleCallback)
4053 IUnknown_Release(editor->lpOleCallback);
4054 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4055 if(editor->lpOleCallback)
4056 IUnknown_AddRef(editor->lpOleCallback);
4057 return TRUE;
4058 case EM_GETWORDBREAKPROC:
4059 return (LRESULT)editor->pfnWordBreak;
4060 case EM_SETWORDBREAKPROC:
4061 {
4062 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4063
4064 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4065 return (LRESULT)pfnOld;
4066 }
4067 case EM_SETTEXTMODE:
4068 {
4069 LRESULT ret;
4070 int mask = 0;
4071 int changes = 0;
4072 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
4073 if (!ret)
4074 {
4075 /*Check for valid wParam*/
4076 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4077 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4078 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4079 return 1;
4080 else
4081 {
4082 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4083 {
4084 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4085 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4086 }
4087 /*FIXME: Currently no support for undo level and code page options*/
4088 editor->mode = (editor->mode & (~mask)) | changes;
4089 return 0;
4090 }
4091 }
4092 return ret;
4093 }
4094 case EM_SETPASSWORDCHAR:
4095 {
4096 editor->cPasswordMask = wParam;
4097 ME_RewrapRepaint(editor);
4098 return 0;
4099 }
4100 case EM_SETTARGETDEVICE:
4101 if (wParam == 0)
4102 {
4103 BOOL new = (lParam == 0);
4104 if (editor->bWordWrap != new)
4105 {
4106 editor->bWordWrap = new;
4107 ME_RewrapRepaint(editor);
4108 }
4109 }
4110 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
4111 break;
4112 default:
4113 do_default:
4114 return DefWindowProcW(hWnd, msg, wParam, lParam);
4115 }
4116 return 0L;
4117 }
4118
4119 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4120 {
4121 BOOL unicode = TRUE;
4122
4123 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4124 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4125 unicode = FALSE;
4126
4127 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4128 }
4129
4130 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4131 {
4132 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4133 }
4134
4135 /******************************************************************
4136 * RichEditANSIWndProc (RICHED20.10)
4137 */
4138 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4139 {
4140 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4141 }
4142
4143 /******************************************************************
4144 * RichEdit10ANSIWndProc (RICHED20.9)
4145 */
4146 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4147 {
4148 LRESULT result;
4149
4150 /* FIXME: this is NOT the same as 2.0 version */
4151 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4152 if (msg == WM_NCCREATE)
4153 {
4154 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4155
4156 TRACE("Emulating version 1.0 (hWnd=%p)\n", hWnd);
4157 editor->bEmulateVersion10 = TRUE;
4158 editor->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & ES_AUTOHSCROLL) ? FALSE : TRUE;
4159 editor->pBuffer->pLast->member.para.nCharOfs = 2;
4160 assert(editor->pBuffer->pLast->prev->type == diRun);
4161 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
4162 editor->pBuffer->pLast->prev->member.run.nLF = 1;
4163 }
4164 return result;
4165 }
4166
4167 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4168 {
4169 HWND hWnd = editor->hWnd;
4170 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
4171 }
4172
4173 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
4174 {
4175 int x,y;
4176 ME_Cursor tmpCursor;
4177 BOOL isExact;
4178 int nCharOfs; /* The start of the clicked text. Absolute character offset */
4179
4180 ME_Run *tmpRun;
4181
4182 ENLINK info;
4183 x = (short)LOWORD(lParam);
4184 y = (short)HIWORD(lParam);
4185 nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
4186 if (!isExact) return;
4187
4188 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
4189 tmpRun = &tmpCursor.pRun->member.run;
4190
4191 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
4192 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
4193 { /* The clicked run has CFE_LINK set */
4194 info.nmhdr.hwndFrom = editor->hWnd;
4195 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
4196 info.nmhdr.code = EN_LINK;
4197 info.msg = msg;
4198 info.wParam = wParam;
4199 info.lParam = lParam;
4200 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
4201 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
4202 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
4203 }
4204 }
4205
4206 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
4207 {
4208 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
4209 int i = 0;
4210
4211 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
4212 item = item->member.para.next_para;
4213 if (!item)
4214 return 0;
4215 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
4216 item = item->member.para.next_para;
4217 i++;
4218 }
4219 return i;
4220 }
4221
4222
4223 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
4224 {
4225 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
4226 int nWritten = 0;
4227 WCHAR *pStart = buffer;
4228
4229 if (!item) {
4230 *buffer = 0;
4231 return 0;
4232 }
4233
4234 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4235 if (editor->bEmulateVersion10) bCRLF = 0;
4236
4237 if (nStart)
4238 {
4239 int nLen = ME_StrLen(item->member.run.strText) - nStart;
4240 if (nLen > nChars)
4241 nLen = nChars;
4242 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
4243 nChars -= nLen;
4244 nWritten += nLen;
4245 buffer += nLen;
4246 if (!nChars) {
4247 *buffer = 0;
4248 return nWritten;
4249 }
4250 nStart = 0;
4251 item = ME_FindItemFwd(item, diRun);
4252 }
4253
4254 while(nChars && item)
4255 {
4256 int nLen = ME_StrLen(item->member.run.strText);
4257 if (item->member.run.nFlags & MERF_ENDPARA)
4258 nLen = item->member.run.nCR + item->member.run.nLF;
4259 if (nLen > nChars)
4260 nLen = nChars;
4261
4262 if (item->member.run.nFlags & MERF_ENDCELL &&
4263 item->member.run.nFlags & MERF_ENDPARA)
4264 {
4265 *buffer = '\t';
4266 }
4267 else if (item->member.run.nFlags & MERF_ENDPARA)
4268 {
4269 if (!ME_FindItemFwd(item, diRun))
4270 /* No '\r' is appended to the last paragraph. */
4271 nLen = 0;
4272 else if (bCRLF && nChars == 1) {
4273 nLen = 0;
4274 nChars = 0;
4275 } else {
4276 if (bCRLF)
4277 {
4278 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
4279 if (ME_GetParagraph(item)->member.para.nFlags & (MEPF_ROWSTART|MEPF_ROWEND))
4280 assert(nLen == 2);
4281 else
4282 assert(nLen == 1);
4283 *buffer++ = '\r';
4284 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
4285 if (nLen == 1)
4286 nWritten++;
4287 else
4288 buffer--;
4289 }
4290 else
4291 {
4292 int i, j;
4293
4294 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
4295 i = 0;
4296 while (nChars - i > 0 && i < item->member.run.nCR)
4297 {
4298 buffer[i] = '\r'; i++;
4299 }
4300 j = 0;
4301 while (nChars - i - j > 0 && j < item->member.run.nLF)
4302 {
4303 buffer[i+j] = '\n'; j++;
4304 }
4305 }
4306 }
4307 }
4308 else
4309 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
4310 nChars -= nLen;
4311 nWritten += nLen;
4312 buffer += nLen;
4313
4314 if (!nChars)
4315 {
4316 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4317 *buffer = 0;
4318 return nWritten;
4319 }
4320 item = ME_FindItemFwd(item, diRun);
4321 }
4322 *buffer = 0;
4323 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4324 return nWritten;
4325 }
4326
4327 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4328 {
4329 WNDCLASSW wcW;
4330 WNDCLASSA wcA;
4331
4332 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4333 wcW.lpfnWndProc = RichEditWndProcW;
4334 wcW.cbClsExtra = 0;
4335 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4336 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4337 wcW.hIcon = NULL;
4338 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4339 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4340 wcW.lpszMenuName = NULL;
4341
4342 if (is_version_nt())
4343 {
4344 wcW.lpszClassName = RichEdit20W;
4345 if (!RegisterClassW(&wcW)) return FALSE;
4346 wcW.lpszClassName = RichEdit50W;
4347 if (!RegisterClassW(&wcW)) return FALSE;
4348 }
4349 else
4350 {
4351 /* WNDCLASSA/W have the same layout */
4352 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4353 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4354 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4355 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4356 }
4357
4358 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4359 wcA.lpfnWndProc = RichEditWndProcA;
4360 wcA.cbClsExtra = 0;
4361 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4362 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4363 wcA.hIcon = NULL;
4364 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4365 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4366 wcA.lpszMenuName = NULL;
4367 wcA.lpszClassName = "RichEdit20A";
4368 if (!RegisterClassA(&wcA)) return FALSE;
4369 wcA.lpszClassName = "RichEdit50A";
4370 if (!RegisterClassA(&wcA)) return FALSE;
4371
4372 return TRUE;
4373 }
4374
4375 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4376 /* FIXME: Not implemented */
4377 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4378 hWnd, msg, get_msg_name(msg), wParam, lParam);
4379 return DefWindowProcW(hWnd, msg, wParam, lParam);
4380 }
4381
4382 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4383 /* FIXME: Not implemented */
4384 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4385 hWnd, msg, get_msg_name(msg), wParam, lParam);
4386 return DefWindowProcW(hWnd, msg, wParam, lParam);
4387 }
4388
4389 /******************************************************************
4390 * REExtendedRegisterClass (RICHED20.8)
4391 *
4392 * FIXME undocumented
4393 * Need to check for errors and implement controls and callbacks
4394 */
4395 LRESULT WINAPI REExtendedRegisterClass(void)
4396 {
4397 WNDCLASSW wcW;
4398 UINT result;
4399
4400 FIXME("semi stub\n");
4401
4402 wcW.cbClsExtra = 0;
4403 wcW.cbWndExtra = 4;
4404 wcW.hInstance = NULL;
4405 wcW.hIcon = NULL;
4406 wcW.hCursor = NULL;
4407 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4408 wcW.lpszMenuName = NULL;
4409
4410 if (!ME_ListBoxRegistered)
4411 {
4412 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4413 wcW.lpfnWndProc = REListWndProc;
4414 wcW.lpszClassName = REListBox20W;
4415 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4416 }
4417
4418 if (!ME_ComboBoxRegistered)
4419 {
4420 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4421 wcW.lpfnWndProc = REComboWndProc;
4422 wcW.lpszClassName = REComboBox20W;
4423 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4424 }
4425
4426 result = 0;
4427 if (ME_ListBoxRegistered)
4428 result += 1;
4429 if (ME_ComboBoxRegistered)
4430 result += 2;
4431
4432 return result;
4433 }
4434
4435 static BOOL isurlspecial(WCHAR c)
4436 {
4437 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4438 return strchrW( special_chars, c ) != NULL;
4439 }
4440
4441 /**
4442 * This proc takes a selection, and scans it forward in order to select the span
4443 * of a possible URL candidate. A possible URL candidate must start with isalnum
4444 * or one of the following special characters: *|/\+%#@ and must consist entirely
4445 * of the characters allowed to start the URL, plus : (colon) which may occur
4446 * at most once, and not at either end.
4447 *
4448 * sel_max == -1 indicates scan to end of text.
4449 */
4450 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
4451 int * candidate_min, int * candidate_max)
4452 {
4453 ME_DisplayItem * item;
4454 ME_DisplayItem * para;
4455 int nStart;
4456 BOOL foundColon = FALSE;
4457 WCHAR lastAcceptedChar = '\0';
4458
4459 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
4460
4461 *candidate_min = *candidate_max = -1;
4462 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
4463 if (!item) return FALSE;
4464 TRACE("nStart = %d\n", nStart);
4465 para = ME_GetParagraph(item);
4466 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4467 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
4468 {
4469 ME_DisplayItem * next_item;
4470
4471 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
4472 /* Find start of candidate */
4473 if (*candidate_min == -1) {
4474 while (nStart < ME_StrLen(item->member.run.strText) &&
4475 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4476 isurlspecial(item->member.run.strText->szData[nStart]))) {
4477 nStart++;
4478 }
4479 if (nStart < ME_StrLen(item->member.run.strText) &&
4480 (isalnumW(item->member.run.strText->szData[nStart]) ||
4481 isurlspecial(item->member.run.strText->szData[nStart]))) {
4482 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4483 lastAcceptedChar = item->member.run.strText->szData[nStart];
4484 nStart++;
4485 }
4486 }
4487
4488 /* Find end of candidate */
4489 if (*candidate_min >= 0) {
4490 while (nStart < ME_StrLen(item->member.run.strText) &&
4491 (isalnumW(item->member.run.strText->szData[nStart]) ||
4492 isurlspecial(item->member.run.strText->szData[nStart]) ||
4493 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
4494 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
4495 lastAcceptedChar = item->member.run.strText->szData[nStart];
4496 nStart++;
4497 }
4498 if (nStart < ME_StrLen(item->member.run.strText) &&
4499 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4500 isurlspecial(item->member.run.strText->szData[nStart]) )) {
4501 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4502 nStart++;
4503 if (lastAcceptedChar == ':') (*candidate_max)--;
4504 return TRUE;
4505 }
4506 }
4507 } else {
4508 /* End of paragraph: skip it if before candidate span, or terminates
4509 current active span */
4510 if (*candidate_min >= 0) {
4511 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
4512 if (lastAcceptedChar == ':') (*candidate_max)--;
4513 return TRUE;
4514 }
4515 }
4516
4517 /* Reaching this point means no span was found, so get next span */
4518 next_item = ME_FindItemFwd(item, diRun);
4519 if (!next_item) {
4520 if (*candidate_min >= 0) {
4521 /* There are no further runs, so take end of text as end of candidate */
4522 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4523 if (lastAcceptedChar == ':') (*candidate_max)--;
4524 return TRUE;
4525 }
4526 }
4527 item = next_item;
4528 para = ME_GetParagraph(item);
4529 nStart = 0;
4530 }
4531
4532 if (item) {
4533 if (*candidate_min >= 0) {
4534 /* There are no further runs, so take end of text as end of candidate */
4535 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4536 if (lastAcceptedChar == ':') (*candidate_max)--;
4537 return TRUE;
4538 }
4539 }
4540 return FALSE;
4541 }
4542
4543 /**
4544 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4545 */
4546 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
4547 {
4548 struct prefix_s {
4549 const char *text;
4550 int length;
4551 } prefixes[12] = {
4552 /* Code below depends on these being in decreasing length order! */
4553 {"prospero:", 10},
4554 {"telnet:", 8},
4555 {"gopher:", 8},
4556 {"mailto:", 8},
4557 {"https:", 7},
4558 {"file:", 6},
4559 {"news:", 6},
4560 {"wais:", 6},
4561 {"nntp:", 6},
4562 {"http:", 5},
4563 {"www.", 5},
4564 {"ftp:", 5},
4565 };
4566 LPWSTR bufferW = NULL;
4567 WCHAR bufW[32];
4568 unsigned int i;
4569
4570 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4571 assert(sel_min <= sel_max);
4572 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
4573 {
4574 if (sel_max - sel_min < prefixes[i].length) continue;
4575 if (bufferW == NULL) {
4576 bufferW = heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
4577 }
4578 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, lstrlenA(prefixes[i].text)), 0);
4579 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
4580 if (!lstrcmpW(bufW, bufferW))
4581 {
4582 heap_free(bufferW);
4583 return TRUE;
4584 }
4585 }
4586 heap_free(bufferW);
4587 return FALSE;
4588 }
4589
4590 /**
4591 * This proc walks through the indicated selection and evaluates whether each
4592 * section identified by ME_FindNextURLCandidate and in-between sections have
4593 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4594 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4595 *
4596 * Returns TRUE if at least one section was modified.
4597 */
4598 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
4599 {
4600 BOOL modified = FALSE;
4601 int cMin, cMax;
4602
4603 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4604 do
4605 {
4606 int beforeURL[2];
4607 int inURL[2];
4608 CHARFORMAT2W link;
4609
4610 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4611 {
4612 /* Section before candidate is not an URL */
4613 beforeURL[0] = sel_min;
4614 beforeURL[1] = cMin;
4615
4616 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4617 {
4618 inURL[0] = cMin; inURL[1] = cMax;
4619 }
4620 else
4621 {
4622 beforeURL[1] = cMax;
4623 inURL[0] = inURL[1] = -1;
4624 }
4625 sel_min = cMax;
4626 }
4627 else
4628 {
4629 /* No more candidates until end of selection */
4630 beforeURL[0] = sel_min;
4631 beforeURL[1] = sel_max;
4632 inURL[0] = inURL[1] = -1;
4633 sel_min = sel_max;
4634 }
4635
4636 if (beforeURL[0] < beforeURL[1])
4637 {
4638 /* CFE_LINK effect should be consistently unset */
4639 link.cbSize = sizeof(link);
4640 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4641 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4642 {
4643 /* CFE_LINK must be unset from this range */
4644 memset(&link, 0, sizeof(CHARFORMAT2W));
4645 link.cbSize = sizeof(link);
4646 link.dwMask = CFM_LINK;
4647 link.dwEffects = 0;
4648 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4649 modified = TRUE;
4650 }
4651 }
4652 if (inURL[0] < inURL[1])
4653 {
4654 /* CFE_LINK effect should be consistently set */
4655 link.cbSize = sizeof(link);
4656 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4657 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4658 {
4659 /* CFE_LINK must be set on this range */
4660 memset(&link, 0, sizeof(CHARFORMAT2W));
4661 link.cbSize = sizeof(link);
4662 link.dwMask = CFM_LINK;
4663 link.dwEffects = CFE_LINK;
4664 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4665 modified = TRUE;
4666 }
4667 }
4668 } while (sel_min < sel_max);
4669 return modified;
4670 }
4671
4672 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4673 {
4674 ME_DisplayItem * startPara, * endPara;
4675 ME_DisplayItem * item;
4676 int dummy;
4677 int from, to;
4678
4679 ME_GetSelection(editor, &from, &to);
4680 if (from > to) from ^= to, to ^=from, from ^= to;
4681 startPara = NULL; endPara = NULL;
4682
4683 /* Find paragraph previous to the one that contains start cursor */
4684 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4685 if (item) {
4686 startPara = ME_FindItemBack(item, diParagraph);
4687 item = ME_FindItemBack(startPara, diParagraph);
4688 if (item) startPara = item;
4689 }
4690
4691 /* Find paragraph that contains end cursor */
4692 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4693 if (item) {
4694 endPara = ME_FindItemFwd(item, diParagraph);
4695 }
4696
4697 if (startPara && endPara) {
4698 ME_UpdateLinkAttribute(editor,
4699 startPara->member.para.nCharOfs,
4700 endPara->member.para.nCharOfs);
4701 } else if (startPara) {
4702 ME_UpdateLinkAttribute(editor,
4703 startPara->member.para.nCharOfs,
4704 -1);
4705 }
4706 }
useful hacks and other patches not (yet) suitable for mainline