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[wine/hacks.git] / dlls / riched20 / editor.c
blob8caa1f8b0bd9031b9cae6bb788ab188fb4a1886e
1 /*
2 * RichEdit - functions dealing with editor object
3 *
4 * Copyright 2004 by Krzysztof Foltman
5 * Copyright 2005 by Cihan Altinay
6 * Copyright 2005 by Phil Krylov
7 * Copyright 2008 Eric Pouech
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 API implementation status:
26
27 Messages (ANSI versions not done yet)
28 + EM_AUTOURLDETECT 2.0
29 + EM_CANPASTE
30 + EM_CANREDO 2.0
31 + EM_CANUNDO
32 + EM_CHARFROMPOS
33 - EM_DISPLAYBAND
34 + EM_EMPTYUNDOBUFFER
35 + EM_EXGETSEL
36 + EM_EXLIMITTEXT
37 + EM_EXLINEFROMCHAR
38 + EM_EXSETSEL
39 + EM_FINDTEXT (only FR_DOWN flag implemented)
40 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_FINDWORDBREAK
42 - EM_FMTLINES
43 - EM_FORMATRANGE
44 + EM_GETAUTOURLDETECT 2.0
45 - EM_GETBIDIOPTIONS 3.0
46 - EM_GETCHARFORMAT (partly done)
47 - EM_GETEDITSTYLE
48 + EM_GETEVENTMASK
49 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
50 - EM_GETIMECOLOR 1.0asian
51 - EM_GETIMECOMPMODE 2.0
52 - EM_GETIMEOPTIONS 1.0asian
53 - EM_GETIMESTATUS
54 - EM_GETLANGOPTIONS 2.0
55 + EM_GETLIMITTEXT
56 + EM_GETLINE
57 + EM_GETLINECOUNT returns number of rows, not of paragraphs
58 + EM_GETMODIFY
59 - EM_GETOLEINTERFACE
60 + EM_GETOPTIONS
61 + EM_GETPARAFORMAT
62 + EM_GETPASSWORDCHAR 2.0
63 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETRECT
65 - EM_GETREDONAME 2.0
66 + EM_GETSEL
67 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETSCROLLPOS 3.0 (only Y value valid)
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 - EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 - EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 - EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_SETLANGOPTIONS 2.0
103 - EM_SETLIMITTEXT
104 - EM_SETMARGINS
105 + EM_SETMODIFY (not sure if implementation is correct)
106 - EM_SETOLECALLBACK
107 + EM_SETOPTIONS (partially implemented)
108 - EM_SETPALETTE 2.0
109 + EM_SETPARAFORMAT
110 + EM_SETPASSWORDCHAR 2.0
111 - EM_SETPUNCTUATION 1.0asian
112 + EM_SETREADONLY no beep on modification attempt
113 + EM_SETRECT
114 + EM_SETRECTNP (EM_SETRECT without repainting)
115 + EM_SETSEL
116 + EM_SETSCROLLPOS 3.0
117 - EM_SETTABSTOPS 3.0
118 - EM_SETTARGETDEVICE (partial)
119 + EM_SETTEXTEX 3.0 (proper style?)
120 - EM_SETTEXTMODE 2.0
121 - EM_SETTYPOGRAPHYOPTIONS 3.0
122 + EM_SETUNDOLIMIT 2.0
123 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
124 - EM_SETWORDBREAKPROCEX
125 - EM_SETWORDWRAPMODE 1.0asian
126 + EM_SETZOOM 3.0
127 + EM_SHOWSCROLLBAR 2.0
128 + EM_STOPGROUPTYPING 2.0
129 + EM_STREAMIN
130 + EM_STREAMOUT
131 + EM_UNDO
132 + WM_CHAR
133 + WM_CLEAR
134 + WM_COPY
135 + WM_CUT
136 + WM_GETDLGCODE (the current implementation is incomplete)
137 + WM_GETTEXT (ANSI&Unicode)
138 + WM_GETTEXTLENGTH (ANSI version sucks)
139 + WM_PASTE
140 + WM_SETFONT
141 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
142 - WM_STYLECHANGING
143 - WM_STYLECHANGED (things like read-only flag)
144 + WM_UNICHAR
145
146 Notifications
147
148 * EN_CHANGE (sent from the wrong place)
149 - EN_CORRECTTEXT
150 - EN_DROPFILES
151 - EN_ERRSPACE
152 - EN_HSCROLL
153 - EN_IMECHANGE
154 + EN_KILLFOCUS
155 - EN_LINK
156 - EN_MAXTEXT
157 - EN_MSGFILTER
158 - EN_OLEOPFAILED
159 - EN_PROTECTED
160 + EN_REQUESTRESIZE
161 - EN_SAVECLIPBOARD
162 + EN_SELCHANGE
163 + EN_SETFOCUS
164 - EN_STOPNOUNDO
165 * EN_UPDATE (sent from the wrong place)
166 - EN_VSCROLL
167
168 Styles
169
170 - ES_AUTOHSCROLL
171 - ES_AUTOVSCROLL
172 - ES_CENTER
173 + ES_DISABLENOSCROLL (scrollbar is always visible)
174 - ES_EX_NOCALLOLEINIT
175 - ES_LEFT
176 - ES_MULTILINE (currently single line controls aren't supported)
177 - ES_NOIME
178 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
179 - ES_RIGHT
180 - ES_SAVESEL
181 - ES_SELFIME
182 - ES_SUNKEN
183 - ES_VERTICAL
184 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
185 - WS_SETFONT
186 - WS_HSCROLL
187 + WS_VSCROLL
188 */
189
190 /*
191 * RICHED20 TODO (incomplete):
192 *
193 * - messages/styles/notifications listed above
194 * - add remaining CHARFORMAT/PARAFORMAT fields
195 * - right/center align should strip spaces from the beginning
196 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
197 * - COM interface (looks like a major pain in the TODO list)
198 * - calculate heights of pictures (half-done)
199 * - horizontal scrolling (not even started)
200 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
201 * - find/replace
202 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
203 * - italic caret with italic fonts
204 * - IME
205 * - most notifications aren't sent at all (the most important ones are)
206 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
207 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
208 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
209 * - full justification
210 * - hyphenation
211 * - tables
212 * - ListBox & ComboBox not implemented
213 *
214 * Bugs that are probably fixed, but not so easy to verify:
215 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
216 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
217 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
218 * - caret shouldn't be displayed when selection isn't empty
219 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
220 * - undo for setting default format (done, might be buggy)
221 * - styles might be not released properly (looks like they work like charm, but who knows?
222 *
223 */
224
225 #include "editor.h"
226 #include "commdlg.h"
227 #include "winreg.h"
228 #define NO_SHLWAPI_STREAM
229 #include "shlwapi.h"
230 #include "rtf.h"
231 #include "imm.h"
232 #include "res.h"
233
234 #define STACK_SIZE_DEFAULT 100
235 #define STACK_SIZE_MAX 1000
236
237 #define TEXT_LIMIT_DEFAULT 32767
238
239 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
240
241 static BOOL ME_RegisterEditorClass(HINSTANCE);
242
243 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
244 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
245 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
246 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
247 static HCURSOR hLeft;
248
249 int me_debug = 0;
250 HANDLE me_heap = NULL;
251
252 static BOOL ME_ListBoxRegistered = FALSE;
253 static BOOL ME_ComboBoxRegistered = FALSE;
254
255 static inline int is_version_nt(void)
256 {
257 return !(GetVersion() & 0x80000000);
258 }
259
260 static ME_TextBuffer *ME_MakeText(void) {
261
262 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
263
264 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
265 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
266
267 p1->prev = NULL;
268 p1->next = p2;
269 p2->prev = p1;
270 p2->next = NULL;
271 p1->member.para.next_para = p2;
272 p2->member.para.prev_para = p1;
273 p2->member.para.nCharOfs = 0;
274
275 buf->pFirst = p1;
276 buf->pLast = p2;
277 buf->pCharStyle = NULL;
278
279 return buf;
280 }
281
282
283 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
284 {
285 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
286 WCHAR *pText;
287
288 TRACE("%08x %p\n", dwFormat, stream);
289
290 do {
291 long nWideChars = 0;
292
293 if (!stream->dwSize)
294 {
295 ME_StreamInFill(stream);
296 if (stream->editstream->dwError)
297 break;
298 if (!stream->dwSize)
299 break;
300 }
301
302 if (!(dwFormat & SF_UNICODE))
303 {
304 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
305 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
306 pText = wszText;
307 }
308 else
309 {
310 nWideChars = stream->dwSize >> 1;
311 pText = (WCHAR *)stream->buffer;
312 }
313
314 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
315 if (stream->dwSize == 0)
316 break;
317 stream->dwSize = 0;
318 } while(1);
319 ME_CommitUndo(editor);
320 ME_UpdateRepaint(editor);
321 return 0;
322 }
323
324 static void ME_ApplyBorderProperties(RTF_Info *info,
325 ME_BorderRect *borderRect,
326 RTFBorder *borderDef)
327 {
328 int i, colorNum;
329 ME_Border *pBorders[] = {&borderRect->top,
330 &borderRect->left,
331 &borderRect->bottom,
332 &borderRect->right};
333 for (i = 0; i < 4; i++)
334 {
335 RTFColor *colorDef = info->colorList;
336 pBorders[i]->width = borderDef[i].width;
337 colorNum = borderDef[i].color;
338 while (colorDef && colorDef->rtfCNum != colorNum)
339 colorDef = colorDef->rtfNextColor;
340 if (colorDef)
341 pBorders[i]->colorRef = RGB(
342 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
343 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
344 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
345 else
346 pBorders[i]->colorRef = RGB(0, 0, 0);
347 }
348 }
349
350 void ME_RTFCharAttrHook(RTF_Info *info)
351 {
352 CHARFORMAT2W fmt;
353 fmt.cbSize = sizeof(fmt);
354 fmt.dwMask = 0;
355 fmt.dwEffects = 0;
356
357 switch(info->rtfMinor)
358 {
359 case rtfPlain:
360 /* FIXME add more flags once they're implemented */
361 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
362 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
363 fmt.yHeight = 12*20; /* 12pt */
364 fmt.wWeight = FW_NORMAL;
365 fmt.bUnderlineType = CFU_UNDERLINENONE;
366 break;
367 case rtfBold:
368 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
369 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
370 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
371 break;
372 case rtfItalic:
373 fmt.dwMask = CFM_ITALIC;
374 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
375 break;
376 case rtfUnderline:
377 fmt.dwMask = CFM_UNDERLINETYPE;
378 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
379 break;
380 case rtfDotUnderline:
381 fmt.dwMask = CFM_UNDERLINETYPE;
382 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
383 break;
384 case rtfDbUnderline:
385 fmt.dwMask = CFM_UNDERLINETYPE;
386 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
387 break;
388 case rtfWordUnderline:
389 fmt.dwMask = CFM_UNDERLINETYPE;
390 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
391 break;
392 case rtfNoUnderline:
393 fmt.dwMask = CFM_UNDERLINETYPE;
394 fmt.bUnderlineType = CFU_UNDERLINENONE;
395 break;
396 case rtfStrikeThru:
397 fmt.dwMask = CFM_STRIKEOUT;
398 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
399 break;
400 case rtfSubScript:
401 case rtfSuperScript:
402 case rtfSubScrShrink:
403 case rtfSuperScrShrink:
404 case rtfNoSuperSub:
405 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
406 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
407 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
408 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
409 break;
410 case rtfInvisible:
411 fmt.dwMask = CFM_HIDDEN;
412 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
413 break;
414 case rtfBackColor:
415 fmt.dwMask = CFM_BACKCOLOR;
416 fmt.dwEffects = 0;
417 if (info->rtfParam == 0)
418 fmt.dwEffects = CFE_AUTOBACKCOLOR;
419 else if (info->rtfParam != rtfNoParam)
420 {
421 RTFColor *c = RTFGetColor(info, info->rtfParam);
422 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
423 }
424 break;
425 case rtfForeColor:
426 fmt.dwMask = CFM_COLOR;
427 fmt.dwEffects = 0;
428 if (info->rtfParam == 0)
429 fmt.dwEffects = CFE_AUTOCOLOR;
430 else if (info->rtfParam != rtfNoParam)
431 {
432 RTFColor *c = RTFGetColor(info, info->rtfParam);
433 if (c)
434 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
435 else
436 fmt.crTextColor = 0;
437 }
438 break;
439 case rtfFontNum:
440 if (info->rtfParam != rtfNoParam)
441 {
442 RTFFont *f = RTFGetFont(info, info->rtfParam);
443 if (f)
444 {
445 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
446 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
447 fmt.bCharSet = f->rtfFCharSet;
448 fmt.dwMask = CFM_FACE | CFM_CHARSET;
449 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
450 }
451 }
452 break;
453 case rtfFontSize:
454 fmt.dwMask = CFM_SIZE;
455 if (info->rtfParam != rtfNoParam)
456 fmt.yHeight = info->rtfParam*10;
457 break;
458 }
459 if (fmt.dwMask) {
460 ME_Style *style2;
461 RTFFlushOutputBuffer(info);
462 /* FIXME too slow ? how come ? */
463 style2 = ME_ApplyStyle(info->style, &fmt);
464 ME_ReleaseStyle(info->style);
465 info->style = style2;
466 info->styleChanged = TRUE;
467 }
468 }
469
470 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
471 the same tags mean different things in different contexts */
472 void ME_RTFParAttrHook(RTF_Info *info)
473 {
474 PARAFORMAT2 fmt;
475 fmt.cbSize = sizeof(fmt);
476 fmt.dwMask = 0;
477
478 switch(info->rtfMinor)
479 {
480 case rtfParDef: /* restores default paragraph attributes */
481 if (!info->editor->bEmulateVersion10) /* v4.1 */
482 info->borderType = RTFBorderParaLeft;
483 else /* v1.0 - 3.0 */
484 info->borderType = RTFBorderParaTop;
485 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
486 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
487 PFM_STARTINDENT;
488 /* TODO: numbering, shading */
489 fmt.wAlignment = PFA_LEFT;
490 fmt.cTabCount = 0;
491 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
492 fmt.wBorderWidth = fmt.wBorders = 0;
493 fmt.wBorderSpace = 0;
494 fmt.bLineSpacingRule = 0;
495 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
496 fmt.dyLineSpacing = 0;
497 if (!info->editor->bEmulateVersion10) /* v4.1 */
498 {
499 if (info->tableDef && info->tableDef->tableRowStart &&
500 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
501 {
502 ME_Cursor cursor;
503 ME_DisplayItem *para;
504 /* We are just after a table row. */
505 RTFFlushOutputBuffer(info);
506 cursor = info->editor->pCursors[0];
507 para = ME_GetParagraph(cursor.pRun);
508 if (para == info->tableDef->tableRowStart->member.para.next_para
509 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
510 {
511 /* Since the table row end, no text has been inserted, and the \intbl
512 * control word has not be used. We can confirm that we are not in a
513 * table anymore.
514 */
515 info->tableDef->tableRowStart = NULL;
516 info->canInheritInTbl = FALSE;
517 }
518 }
519 } else { /* v1.0 - v3.0 */
520 fmt.dwMask |= PFM_TABLE;
521 fmt.wEffects &= ~PFE_TABLE;
522 }
523 break;
524 case rtfNestLevel:
525 if (!info->editor->bEmulateVersion10) /* v4.1 */
526 {
527 while (info->rtfParam > info->nestingLevel) {
528 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
529 ZeroMemory(tableDef, sizeof(RTFTable));
530 tableDef->parent = info->tableDef;
531 info->tableDef = tableDef;
532
533 RTFFlushOutputBuffer(info);
534 if (tableDef->tableRowStart &&
535 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
536 {
537 ME_DisplayItem *para = tableDef->tableRowStart;
538 para = para->member.para.next_para;
539 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
540 tableDef->tableRowStart = para;
541 } else {
542 ME_Cursor cursor;
543 WCHAR endl = '\r';
544 cursor = info->editor->pCursors[0];
545 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
546 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
547 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
548 }
549
550 info->nestingLevel++;
551 }
552 info->canInheritInTbl = FALSE;
553 }
554 break;
555 case rtfInTable:
556 {
557 if (!info->editor->bEmulateVersion10) /* v4.1 */
558 {
559 if (info->nestingLevel < 1)
560 {
561 RTFTable *tableDef;
562 if (!info->tableDef)
563 {
564 info->tableDef = ALLOC_OBJ(RTFTable);
565 ZeroMemory(info->tableDef, sizeof(RTFTable));
566 }
567 tableDef = info->tableDef;
568 RTFFlushOutputBuffer(info);
569 if (tableDef->tableRowStart &&
570 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
571 {
572 ME_DisplayItem *para = tableDef->tableRowStart;
573 para = para->member.para.next_para;
574 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
575 tableDef->tableRowStart = para;
576 } else {
577 ME_Cursor cursor;
578 WCHAR endl = '\r';
579 cursor = info->editor->pCursors[0];
580 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
581 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
582 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
583 }
584 info->nestingLevel = 1;
585 info->canInheritInTbl = TRUE;
586 }
587 return;
588 } else { /* v1.0 - v3.0 */
589 fmt.dwMask |= PFM_TABLE;
590 fmt.wEffects |= PFE_TABLE;
591 }
592 break;
593 }
594 case rtfFirstIndent:
595 ME_GetSelectionParaFormat(info->editor, &fmt);
596 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
597 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
598 fmt.dxOffset = -info->rtfParam;
599 break;
600 case rtfLeftIndent:
601 ME_GetSelectionParaFormat(info->editor, &fmt);
602 fmt.dwMask = PFM_STARTINDENT;
603 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
604 break;
605 case rtfRightIndent:
606 fmt.dwMask = PFM_RIGHTINDENT;
607 fmt.dxRightIndent = info->rtfParam;
608 break;
609 case rtfQuadLeft:
610 case rtfQuadJust:
611 fmt.dwMask = PFM_ALIGNMENT;
612 fmt.wAlignment = PFA_LEFT;
613 break;
614 case rtfQuadRight:
615 fmt.dwMask = PFM_ALIGNMENT;
616 fmt.wAlignment = PFA_RIGHT;
617 break;
618 case rtfQuadCenter:
619 fmt.dwMask = PFM_ALIGNMENT;
620 fmt.wAlignment = PFA_CENTER;
621 break;
622 case rtfTabPos:
623 ME_GetSelectionParaFormat(info->editor, &fmt);
624 if (!(fmt.dwMask & PFM_TABSTOPS))
625 {
626 fmt.cTabCount = 0;
627 }
628 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
629 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
630 fmt.dwMask = PFM_TABSTOPS;
631 break;
632 case rtfKeep:
633 fmt.dwMask = PFM_KEEP;
634 fmt.wEffects = PFE_KEEP;
635 break;
636 case rtfNoWidowControl:
637 fmt.dwMask = PFM_NOWIDOWCONTROL;
638 fmt.wEffects = PFE_NOWIDOWCONTROL;
639 break;
640 case rtfKeepNext:
641 fmt.dwMask = PFM_KEEPNEXT;
642 fmt.wEffects = PFE_KEEPNEXT;
643 break;
644 case rtfSpaceAfter:
645 fmt.dwMask = PFM_SPACEAFTER;
646 fmt.dySpaceAfter = info->rtfParam;
647 break;
648 case rtfSpaceBefore:
649 fmt.dwMask = PFM_SPACEBEFORE;
650 fmt.dySpaceBefore = info->rtfParam;
651 break;
652 case rtfSpaceBetween:
653 fmt.dwMask = PFM_LINESPACING;
654 if ((int)info->rtfParam > 0)
655 {
656 fmt.dyLineSpacing = info->rtfParam;
657 fmt.bLineSpacingRule = 3;
658 }
659 else
660 {
661 fmt.dyLineSpacing = info->rtfParam;
662 fmt.bLineSpacingRule = 4;
663 }
664 case rtfSpaceMultiply:
665 fmt.dwMask = PFM_LINESPACING;
666 fmt.dyLineSpacing = info->rtfParam * 20;
667 fmt.bLineSpacingRule = 5;
668 break;
669 case rtfParBullet:
670 fmt.dwMask = PFM_NUMBERING;
671 fmt.wNumbering = PFN_BULLET;
672 break;
673 case rtfParSimple:
674 fmt.dwMask = PFM_NUMBERING;
675 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
676 break;
677 case rtfParNumDecimal:
678 fmt.dwMask = PFM_NUMBERING;
679 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
680 break;
681 case rtfParNumIndent:
682 fmt.dwMask = PFM_NUMBERINGTAB;
683 fmt.wNumberingTab = info->rtfParam;
684 break;
685 case rtfParNumStartAt:
686 fmt.dwMask = PFM_NUMBERINGSTART;
687 fmt.wNumberingStart = info->rtfParam;
688 break;
689 case rtfBorderLeft:
690 info->borderType = RTFBorderParaLeft;
691 ME_GetSelectionParaFormat(info->editor, &fmt);
692 if (!(fmt.dwMask & PFM_BORDER))
693 {
694 fmt.wBorderSpace = 0;
695 fmt.wBorderWidth = 1;
696 fmt.wBorders = 0;
697 }
698 fmt.wBorders |= 1;
699 fmt.dwMask = PFM_BORDER;
700 break;
701 case rtfBorderRight:
702 info->borderType = RTFBorderParaRight;
703 ME_GetSelectionParaFormat(info->editor, &fmt);
704 if (!(fmt.dwMask & PFM_BORDER))
705 {
706 fmt.wBorderSpace = 0;
707 fmt.wBorderWidth = 1;
708 fmt.wBorders = 0;
709 }
710 fmt.wBorders |= 2;
711 fmt.dwMask = PFM_BORDER;
712 break;
713 case rtfBorderTop:
714 info->borderType = RTFBorderParaTop;
715 ME_GetSelectionParaFormat(info->editor, &fmt);
716 if (!(fmt.dwMask & PFM_BORDER))
717 {
718 fmt.wBorderSpace = 0;
719 fmt.wBorderWidth = 1;
720 fmt.wBorders = 0;
721 }
722 fmt.wBorders |= 4;
723 fmt.dwMask = PFM_BORDER;
724 break;
725 case rtfBorderBottom:
726 info->borderType = RTFBorderParaBottom;
727 ME_GetSelectionParaFormat(info->editor, &fmt);
728 if (!(fmt.dwMask & PFM_BORDER))
729 {
730 fmt.wBorderSpace = 0;
731 fmt.wBorderWidth = 1;
732 fmt.wBorders = 0;
733 }
734 fmt.wBorders |= 8;
735 fmt.dwMask = PFM_BORDER;
736 break;
737 case rtfBorderSingle:
738 ME_GetSelectionParaFormat(info->editor, &fmt);
739 /* we assume that borders have been created before (RTF spec) */
740 fmt.wBorders &= ~0x700;
741 fmt.wBorders |= 1 << 8;
742 fmt.dwMask = PFM_BORDER;
743 break;
744 case rtfBorderThick:
745 ME_GetSelectionParaFormat(info->editor, &fmt);
746 /* we assume that borders have been created before (RTF spec) */
747 fmt.wBorders &= ~0x700;
748 fmt.wBorders |= 2 << 8;
749 fmt.dwMask = PFM_BORDER;
750 break;
751 case rtfBorderShadow:
752 ME_GetSelectionParaFormat(info->editor, &fmt);
753 /* we assume that borders have been created before (RTF spec) */
754 fmt.wBorders &= ~0x700;
755 fmt.wBorders |= 10 << 8;
756 fmt.dwMask = PFM_BORDER;
757 break;
758 case rtfBorderDouble:
759 ME_GetSelectionParaFormat(info->editor, &fmt);
760 /* we assume that borders have been created before (RTF spec) */
761 fmt.wBorders &= ~0x700;
762 fmt.wBorders |= 7 << 8;
763 fmt.dwMask = PFM_BORDER;
764 break;
765 case rtfBorderDot:
766 ME_GetSelectionParaFormat(info->editor, &fmt);
767 /* we assume that borders have been created before (RTF spec) */
768 fmt.wBorders &= ~0x700;
769 fmt.wBorders |= 11 << 8;
770 fmt.dwMask = PFM_BORDER;
771 break;
772 case rtfBorderWidth:
773 {
774 int borderSide = info->borderType & RTFBorderSideMask;
775 RTFTable *tableDef = info->tableDef;
776 ME_GetSelectionParaFormat(info->editor, &fmt);
777 /* we assume that borders have been created before (RTF spec) */
778 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
779 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
780 {
781 RTFBorder *border;
782 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
783 break;
784 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
785 border->width = info->rtfParam;
786 break;
787 }
788 fmt.dwMask = PFM_BORDER;
789 break;
790 }
791 case rtfBorderSpace:
792 ME_GetSelectionParaFormat(info->editor, &fmt);
793 /* we assume that borders have been created before (RTF spec) */
794 fmt.wBorderSpace = info->rtfParam;
795 fmt.dwMask = PFM_BORDER;
796 break;
797 case rtfBorderColor:
798 {
799 RTFTable *tableDef = info->tableDef;
800 int borderSide = info->borderType & RTFBorderSideMask;
801 int borderType = info->borderType & RTFBorderTypeMask;
802 switch(borderType)
803 {
804 case RTFBorderTypePara:
805 if (!info->editor->bEmulateVersion10) /* v4.1 */
806 break;
807 /* v1.0 - 3.0 treat paragraph and row borders the same. */
808 case RTFBorderTypeRow:
809 if (tableDef) {
810 tableDef->border[borderSide].color = info->rtfParam;
811 }
812 break;
813 case RTFBorderTypeCell:
814 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
815 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
816 }
817 break;
818 }
819 break;
820 }
821 }
822 if (fmt.dwMask) {
823 RTFFlushOutputBuffer(info);
824 /* FIXME too slow ? how come ?*/
825 ME_SetSelectionParaFormat(info->editor, &fmt);
826 }
827 }
828
829 void ME_RTFTblAttrHook(RTF_Info *info)
830 {
831 switch (info->rtfMinor)
832 {
833 case rtfRowDef:
834 {
835 if (!info->editor->bEmulateVersion10) /* v4.1 */
836 info->borderType = 0; /* Not sure */
837 else /* v1.0 - 3.0 */
838 info->borderType = RTFBorderRowTop;
839 if (!info->tableDef) {
840 info->tableDef = ME_MakeTableDef(info->editor);
841 } else {
842 ME_InitTableDef(info->editor, info->tableDef);
843 }
844 break;
845 }
846 case rtfCellPos:
847 {
848 int cellNum;
849 if (!info->tableDef)
850 {
851 info->tableDef = ME_MakeTableDef(info->editor);
852 }
853 cellNum = info->tableDef->numCellsDefined;
854 if (cellNum >= MAX_TABLE_CELLS)
855 break;
856 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
857 if (cellNum < MAX_TAB_STOPS) {
858 /* Tab stops were used to store cell positions before v4.1 but v4.1
859 * still seems to set the tabstops without using them. */
860 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
861 PARAFORMAT2 *pFmt = para->member.para.pFmt;
862 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
863 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
864 }
865 info->tableDef->numCellsDefined++;
866 break;
867 }
868 case rtfRowBordTop:
869 info->borderType = RTFBorderRowTop;
870 break;
871 case rtfRowBordLeft:
872 info->borderType = RTFBorderRowLeft;
873 break;
874 case rtfRowBordBottom:
875 info->borderType = RTFBorderRowBottom;
876 break;
877 case rtfRowBordRight:
878 info->borderType = RTFBorderRowRight;
879 break;
880 case rtfCellBordTop:
881 info->borderType = RTFBorderCellTop;
882 break;
883 case rtfCellBordLeft:
884 info->borderType = RTFBorderCellLeft;
885 break;
886 case rtfCellBordBottom:
887 info->borderType = RTFBorderCellBottom;
888 break;
889 case rtfCellBordRight:
890 info->borderType = RTFBorderCellRight;
891 break;
892 case rtfRowGapH:
893 if (info->tableDef)
894 info->tableDef->gapH = info->rtfParam;
895 break;
896 case rtfRowLeftEdge:
897 if (info->tableDef)
898 info->tableDef->leftEdge = info->rtfParam;
899 break;
900 }
901 }
902
903 void ME_RTFSpecialCharHook(RTF_Info *info)
904 {
905 RTFTable *tableDef = info->tableDef;
906 switch (info->rtfMinor)
907 {
908 case rtfNestCell:
909 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
910 break;
911 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
912 case rtfCell:
913 if (!tableDef)
914 break;
915 RTFFlushOutputBuffer(info);
916 if (!info->editor->bEmulateVersion10) { /* v4.1 */
917 if (tableDef->tableRowStart)
918 {
919 if (!info->nestingLevel &&
920 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
921 {
922 ME_DisplayItem *para = tableDef->tableRowStart;
923 para = para->member.para.next_para;
924 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
925 tableDef->tableRowStart = para;
926 info->nestingLevel = 1;
927 }
928 ME_InsertTableCellFromCursor(info->editor);
929 }
930 } else { /* v1.0 - v3.0 */
931 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
932 PARAFORMAT2 *pFmt = para->member.para.pFmt;
933 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
934 tableDef->numCellsInserted < tableDef->numCellsDefined)
935 {
936 WCHAR tab = '\t';
937 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
938 tableDef->numCellsInserted++;
939 }
940 }
941 break;
942 case rtfNestRow:
943 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
944 break;
945 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
946 case rtfRow:
947 {
948 ME_DisplayItem *para, *cell, *run;
949 int i;
950
951 if (!tableDef)
952 break;
953 RTFFlushOutputBuffer(info);
954 if (!info->editor->bEmulateVersion10) { /* v4.1 */
955 if (!tableDef->tableRowStart)
956 break;
957 if (!info->nestingLevel &&
958 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
959 {
960 para = tableDef->tableRowStart;
961 para = para->member.para.next_para;
962 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
963 tableDef->tableRowStart = para;
964 info->nestingLevel++;
965 }
966 para = tableDef->tableRowStart;
967 cell = ME_FindItemFwd(para, diCell);
968 assert(cell && !cell->member.cell.prev_cell);
969 if (tableDef->numCellsDefined < 1)
970 {
971 /* 2000 twips appears to be the cell size that native richedit uses
972 * when no cell sizes are specified. */
973 const int defaultCellSize = 2000;
974 int nRightBoundary = defaultCellSize;
975 cell->member.cell.nRightBoundary = nRightBoundary;
976 while (cell->member.cell.next_cell) {
977 cell = cell->member.cell.next_cell;
978 nRightBoundary += defaultCellSize;
979 cell->member.cell.nRightBoundary = nRightBoundary;
980 }
981 para = ME_InsertTableCellFromCursor(info->editor);
982 cell = para->member.para.pCell;
983 cell->member.cell.nRightBoundary = nRightBoundary;
984 } else {
985 for (i = 0; i < tableDef->numCellsDefined; i++)
986 {
987 RTFCell *cellDef = &tableDef->cells[i];
988 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
989 ME_ApplyBorderProperties(info, &cell->member.cell.border,
990 cellDef->border);
991 cell = cell->member.cell.next_cell;
992 if (!cell)
993 {
994 para = ME_InsertTableCellFromCursor(info->editor);
995 cell = para->member.para.pCell;
996 }
997 }
998 /* Cell for table row delimiter is empty */
999 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1000 }
1001
1002 run = ME_FindItemFwd(cell, diRun);
1003 if (info->editor->pCursors[0].pRun != run ||
1004 info->editor->pCursors[0].nOffset)
1005 {
1006 int nOfs, nChars;
1007 /* Delete inserted cells that aren't defined. */
1008 info->editor->pCursors[1].pRun = run;
1009 info->editor->pCursors[1].nOffset = 0;
1010 nOfs = ME_GetCursorOfs(info->editor, 1);
1011 nChars = ME_GetCursorOfs(info->editor, 0) - nOfs;
1012 ME_InternalDeleteText(info->editor, nOfs, nChars, TRUE);
1013 }
1014
1015 para = ME_InsertTableRowEndFromCursor(info->editor);
1016 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1017 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1018 ME_ApplyBorderProperties(info, &para->member.para.border,
1019 tableDef->border);
1020 info->nestingLevel--;
1021 if (!info->nestingLevel)
1022 {
1023 if (info->canInheritInTbl) {
1024 tableDef->tableRowStart = para;
1025 } else {
1026 while (info->tableDef) {
1027 tableDef = info->tableDef;
1028 info->tableDef = tableDef->parent;
1029 heap_free(tableDef);
1030 }
1031 }
1032 } else {
1033 info->tableDef = tableDef->parent;
1034 heap_free(tableDef);
1035 }
1036 } else { /* v1.0 - v3.0 */
1037 WCHAR endl = '\r';
1038 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1039 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1040 pFmt->dxOffset = info->tableDef->gapH;
1041 pFmt->dxStartIndent = info->tableDef->leftEdge;
1042
1043 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1044 ME_ApplyBorderProperties(info, &para->member.para.border,
1045 tableDef->border);
1046 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1047 {
1048 WCHAR tab = '\t';
1049 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1050 tableDef->numCellsInserted++;
1051 }
1052 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1053 if (!tableDef->numCellsDefined)
1054 pFmt->wEffects &= ~PFE_TABLE;
1055 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1056 tableDef->numCellsInserted = 0;
1057 }
1058 break;
1059 }
1060 case rtfTab:
1061 case rtfPar:
1062 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1063 ME_DisplayItem *para;
1064 PARAFORMAT2 *pFmt;
1065 RTFFlushOutputBuffer(info);
1066 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1067 pFmt = para->member.para.pFmt;
1068 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1069 {
1070 /* rtfPar is treated like a space within a table. */
1071 info->rtfClass = rtfText;
1072 info->rtfMajor = ' ';
1073 }
1074 else if (info->rtfMinor == rtfPar && tableDef)
1075 tableDef->numCellsInserted = 0;
1076 }
1077 break;
1078 }
1079 }
1080
1081 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1082 const SIZEL* sz)
1083 {
1084 LPOLEOBJECT lpObject = NULL;
1085 LPSTORAGE lpStorage = NULL;
1086 LPOLECLIENTSITE lpClientSite = NULL;
1087 LPDATAOBJECT lpDataObject = NULL;
1088 LPOLECACHE lpOleCache = NULL;
1089 STGMEDIUM stgm;
1090 FORMATETC fm;
1091 CLSID clsid;
1092 BOOL ret = FALSE;
1093 DWORD conn;
1094
1095 if (hemf)
1096 {
1097 stgm.tymed = TYMED_ENHMF;
1098 stgm.u.hEnhMetaFile = hemf;
1099 fm.cfFormat = CF_ENHMETAFILE;
1100 }
1101 else if (hbmp)
1102 {
1103 stgm.tymed = TYMED_GDI;
1104 stgm.u.hBitmap = hbmp;
1105 fm.cfFormat = CF_BITMAP;
1106 }
1107 stgm.pUnkForRelease = NULL;
1108
1109 fm.ptd = NULL;
1110 fm.dwAspect = DVASPECT_CONTENT;
1111 fm.lindex = -1;
1112 fm.tymed = stgm.tymed;
1113
1114 if (!info->lpRichEditOle)
1115 {
1116 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1117 }
1118
1119 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1120 #if 0
1121 /* FIXME: enable it when rich-edit properly implements this method */
1122 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1123 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1124 #endif
1125 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1126 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1127 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1128 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1129 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1130 {
1131 REOBJECT reobject;
1132
1133 reobject.cbStruct = sizeof(reobject);
1134 reobject.cp = REO_CP_SELECTION;
1135 reobject.clsid = clsid;
1136 reobject.poleobj = lpObject;
1137 reobject.pstg = lpStorage;
1138 reobject.polesite = lpClientSite;
1139 /* convert from twips to .01 mm */
1140 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1141 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1142 reobject.dvaspect = DVASPECT_CONTENT;
1143 reobject.dwFlags = 0; /* FIXME */
1144 reobject.dwUser = 0;
1145
1146 /* FIXME: could be simpler */
1147 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
1148 }
1149
1150 if (lpObject) IOleObject_Release(lpObject);
1151 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1152 if (lpStorage) IStorage_Release(lpStorage);
1153 if (lpDataObject) IDataObject_Release(lpDataObject);
1154 if (lpOleCache) IOleCache_Release(lpOleCache);
1155
1156 return ret;
1157 }
1158
1159 static void ME_RTFReadPictGroup(RTF_Info *info)
1160 {
1161 SIZEL sz;
1162 BYTE* buffer = NULL;
1163 unsigned bufsz, bufidx;
1164 BOOL flip;
1165 BYTE val;
1166 METAFILEPICT mfp;
1167 HENHMETAFILE hemf;
1168 HBITMAP hbmp;
1169 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1170
1171 RTFGetToken (info);
1172 if (info->rtfClass == rtfEOF)
1173 return;
1174 mfp.mm = MM_TEXT;
1175 /* fetch picture type */
1176 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1177 {
1178 mfp.mm = info->rtfParam;
1179 gfx = gfx_metafile;
1180 }
1181 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1182 {
1183 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1184 gfx = gfx_dib;
1185 }
1186 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1187 {
1188 gfx = gfx_enhmetafile;
1189 }
1190 else
1191 {
1192 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1193 goto skip_group;
1194 }
1195 sz.cx = sz.cy = 0;
1196 /* fetch picture attributes */
1197 for (;;)
1198 {
1199 RTFGetToken (info);
1200 if (info->rtfClass == rtfEOF)
1201 return;
1202 if (info->rtfClass == rtfText)
1203 break;
1204 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1205 {
1206 ERR("Expected picture attribute (%d %d)\n",
1207 info->rtfClass, info->rtfMajor);
1208 goto skip_group;
1209 }
1210 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1211 {
1212 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1213 }
1214 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1215 {
1216 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1217 }
1218 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1219 sz.cx = info->rtfParam;
1220 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1221 sz.cy = info->rtfParam;
1222 else
1223 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1224 }
1225 /* fetch picture data */
1226 bufsz = 1024;
1227 bufidx = 0;
1228 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1229 val = info->rtfMajor;
1230 for (flip = TRUE;; flip = !flip)
1231 {
1232 RTFGetToken (info);
1233 if (info->rtfClass == rtfEOF)
1234 {
1235 HeapFree(GetProcessHeap(), 0, buffer);
1236 return; /* Warn ?? */
1237 }
1238 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1239 break;
1240 if (info->rtfClass != rtfText) goto skip_group;
1241 if (flip)
1242 {
1243 if (bufidx >= bufsz &&
1244 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1245 goto skip_group;
1246 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1247 }
1248 else
1249 val = info->rtfMajor;
1250 }
1251 if (flip) FIXME("wrong hex string\n");
1252
1253 switch (gfx)
1254 {
1255 case gfx_enhmetafile:
1256 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1257 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1258 break;
1259 case gfx_metafile:
1260 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1261 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1262 break;
1263 case gfx_dib:
1264 {
1265 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1266 HDC hdc = GetDC(0);
1267 unsigned nc = bi->bmiHeader.biClrUsed;
1268
1269 /* not quite right, especially for bitfields type of compression */
1270 if (!nc && bi->bmiHeader.biBitCount <= 8)
1271 nc = 1 << bi->bmiHeader.biBitCount;
1272 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1273 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1274 bi, DIB_RGB_COLORS)))
1275 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1276 ReleaseDC(0, hdc);
1277 }
1278 break;
1279 default:
1280 break;
1281 }
1282 HeapFree(GetProcessHeap(), 0, buffer);
1283 RTFRouteToken (info); /* feed "}" back to router */
1284 return;
1285 skip_group:
1286 HeapFree(GetProcessHeap(), 0, buffer);
1287 RTFSkipGroup(info);
1288 RTFRouteToken(info); /* feed "}" back to router */
1289 }
1290
1291 /* for now, lookup the \result part and use it, whatever the object */
1292 static void ME_RTFReadObjectGroup(RTF_Info *info)
1293 {
1294 for (;;)
1295 {
1296 RTFGetToken (info);
1297 if (info->rtfClass == rtfEOF)
1298 return;
1299 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1300 break;
1301 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1302 {
1303 RTFGetToken (info);
1304 if (info->rtfClass == rtfEOF)
1305 return;
1306 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1307 {
1308 int level = 1;
1309
1310 while (RTFGetToken (info) != rtfEOF)
1311 {
1312 if (info->rtfClass == rtfGroup)
1313 {
1314 if (info->rtfMajor == rtfBeginGroup) level++;
1315 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1316 }
1317 RTFRouteToken(info);
1318 }
1319 }
1320 else RTFSkipGroup(info);
1321 continue;
1322 }
1323 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1324 {
1325 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1326 return;
1327 }
1328 }
1329 RTFRouteToken(info); /* feed "}" back to router */
1330 }
1331
1332 static void ME_RTFReadHook(RTF_Info *info)
1333 {
1334 switch(info->rtfClass)
1335 {
1336 case rtfGroup:
1337 switch(info->rtfMajor)
1338 {
1339 case rtfBeginGroup:
1340 if (info->stackTop < maxStack) {
1341 info->stack[info->stackTop].fmt = info->style->fmt;
1342 info->stack[info->stackTop].codePage = info->codePage;
1343 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1344 }
1345 info->stackTop++;
1346 info->styleChanged = FALSE;
1347 break;
1348 case rtfEndGroup:
1349 {
1350 ME_Style *s;
1351 RTFFlushOutputBuffer(info);
1352 info->stackTop--;
1353 if (info->stackTop<=0) {
1354 info->rtfClass = rtfEOF;
1355 return;
1356 }
1357 assert(info->stackTop >= 0);
1358 if (info->styleChanged)
1359 {
1360 /* FIXME too slow ? how come ? */
1361 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
1362 ME_ReleaseStyle(info->style);
1363 info->style = s;
1364 info->codePage = info->stack[info->stackTop].codePage;
1365 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1366 }
1367 break;
1368 }
1369 }
1370 break;
1371 }
1372 }
1373
1374 void
1375 ME_StreamInFill(ME_InStream *stream)
1376 {
1377 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1378 (BYTE *)stream->buffer,
1379 sizeof(stream->buffer),
1380 (LONG *)&stream->dwSize);
1381 stream->dwUsed = 0;
1382 }
1383
1384 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1385 {
1386 RTF_Info parser;
1387 ME_Style *style;
1388 int from, to, to2, nUndoMode;
1389 int nEventMask = editor->nEventMask;
1390 ME_InStream inStream;
1391 BOOL invalidRTF = FALSE;
1392
1393 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
1394 editor->nEventMask = 0;
1395
1396 ME_GetSelection(editor, &from, &to);
1397 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1398 style = ME_GetSelectionInsertStyle(editor);
1399
1400 ME_InternalDeleteText(editor, from, to-from, FALSE);
1401
1402 /* Don't insert text at the end of the table row */
1403 if (!editor->bEmulateVersion10) { /* v4.1 */
1404 ME_DisplayItem *para = ME_GetParagraph(editor->pCursors->pRun);
1405 if (para->member.para.nFlags & MEPF_ROWEND)
1406 {
1407 para = para->member.para.next_para;
1408 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1409 editor->pCursors[0].nOffset = 0;
1410 }
1411 if (para->member.para.nFlags & MEPF_ROWSTART)
1412 {
1413 para = para->member.para.next_para;
1414 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1415 editor->pCursors[0].nOffset = 0;
1416 }
1417 editor->pCursors[1] = editor->pCursors[0];
1418 } else { /* v1.0 - 3.0 */
1419 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1420 ME_IsInTable(editor->pCursors[0].pRun))
1421 return 0;
1422 }
1423 }
1424 else {
1425 ME_DisplayItem *para_item;
1426 style = editor->pBuffer->pDefaultStyle;
1427 ME_AddRefStyle(style);
1428 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1429 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
1430 from = to = 0;
1431 ME_ClearTempStyle(editor);
1432
1433 para_item = ME_GetParagraph(editor->pCursors[0].pRun);
1434 ME_SetDefaultParaFormat(para_item->member.para.pFmt);
1435 }
1436
1437
1438 /* Back up undo mode to a local variable */
1439 nUndoMode = editor->nUndoMode;
1440
1441 /* Only create an undo if SFF_SELECTION is set */
1442 if (!(format & SFF_SELECTION))
1443 editor->nUndoMode = umIgnore;
1444
1445 inStream.editstream = stream;
1446 inStream.editstream->dwError = 0;
1447 inStream.dwSize = 0;
1448 inStream.dwUsed = 0;
1449
1450 if (format & SF_RTF)
1451 {
1452 /* Check if it's really RTF, and if it is not, use plain text */
1453 ME_StreamInFill(&inStream);
1454 if (!inStream.editstream->dwError)
1455 {
1456 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1457 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1458 {
1459 invalidRTF = TRUE;
1460 inStream.editstream->dwError = -16;
1461 }
1462 }
1463 }
1464
1465 if (!invalidRTF && !inStream.editstream->dwError)
1466 {
1467 if (format & SF_RTF) {
1468 /* setup the RTF parser */
1469 memset(&parser, 0, sizeof parser);
1470 RTFSetEditStream(&parser, &inStream);
1471 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1472 parser.hwndEdit = editor->hWnd;
1473 parser.editor = editor;
1474 parser.style = style;
1475 WriterInit(&parser);
1476 RTFInit(&parser);
1477 RTFSetReadHook(&parser, ME_RTFReadHook);
1478 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1479 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1480 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1481 {
1482 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1483 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1484 }
1485 BeginFile(&parser);
1486
1487 /* do the parsing */
1488 RTFRead(&parser);
1489 RTFFlushOutputBuffer(&parser);
1490 if (!editor->bEmulateVersion10) { /* v4.1 */
1491 if (parser.tableDef && parser.tableDef->tableRowStart &&
1492 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1493 {
1494 /* Delete any incomplete table row at the end of the rich text. */
1495 int nOfs, nChars;
1496 ME_DisplayItem *pCell;
1497 ME_DisplayItem *para;
1498
1499 parser.rtfMinor = rtfRow;
1500 /* Complete the table row before deleting it.
1501 * By doing it this way we will have the current paragraph format set
1502 * properly to reflect that is not in the complete table, and undo items
1503 * will be added for this change to the current paragraph format. */
1504 if (parser.nestingLevel > 0)
1505 {
1506 while (parser.nestingLevel > 1)
1507 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1508 para = parser.tableDef->tableRowStart;
1509 ME_RTFSpecialCharHook(&parser);
1510 } else {
1511 para = parser.tableDef->tableRowStart;
1512 ME_RTFSpecialCharHook(&parser);
1513 assert(para->member.para.nFlags & MEPF_ROWEND);
1514 para = para->member.para.next_para;
1515 }
1516 pCell = para->member.para.pCell;
1517
1518 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1519 editor->pCursors[1].nOffset = 0;
1520 nOfs = ME_GetCursorOfs(editor, 1);
1521 nChars = ME_GetCursorOfs(editor, 0) - nOfs;
1522 ME_InternalDeleteText(editor, nOfs, nChars, TRUE);
1523 if (parser.tableDef)
1524 parser.tableDef->tableRowStart = NULL;
1525 }
1526 }
1527 ME_CheckTablesForCorruption(editor);
1528 RTFDestroy(&parser);
1529 if (parser.lpRichEditOle)
1530 IRichEditOle_Release(parser.lpRichEditOle);
1531
1532 if (!inStream.editstream->dwError && parser.stackTop > 0)
1533 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1534
1535 /* Remove last line break, as mandated by tests. This is not affected by
1536 CR/LF counters, since RTF streaming presents only \para tokens, which
1537 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1538 */
1539 if (stripLastCR) {
1540 int newfrom, newto;
1541 ME_GetSelection(editor, &newfrom, &newto);
1542 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1543 WCHAR lastchar[3] = {'\0', '\0'};
1544 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1545
1546 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1547 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1548 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize, FALSE);
1549 }
1550 }
1551 }
1552
1553 style = parser.style;
1554 }
1555 else if (format & SF_TEXT)
1556 ME_StreamInText(editor, format, &inStream, style);
1557 else
1558 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1559 ME_GetSelection(editor, &to, &to2);
1560 /* put the cursor at the top */
1561 if (!(format & SFF_SELECTION))
1562 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1563 }
1564
1565 /* Restore saved undo mode */
1566 editor->nUndoMode = nUndoMode;
1567
1568 /* even if we didn't add an undo, we need to commit anything on the stack */
1569 ME_CommitUndo(editor);
1570
1571 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1572 if (!(format & SFF_SELECTION))
1573 ME_EmptyUndoStack(editor);
1574
1575 ME_ReleaseStyle(style);
1576 editor->nEventMask = nEventMask;
1577 ME_UpdateRepaint(editor);
1578 if (!(format & SFF_SELECTION)) {
1579 ME_ClearTempStyle(editor);
1580 }
1581 HideCaret(editor->hWnd);
1582 ME_MoveCaret(editor);
1583 ShowCaret(editor->hWnd);
1584 ME_SendSelChange(editor);
1585 ME_SendRequestResize(editor, FALSE);
1586
1587 return 0;
1588 }
1589
1590
1591 typedef struct tagME_RTFStringStreamStruct
1592 {
1593 char *string;
1594 int pos;
1595 int length;
1596 } ME_RTFStringStreamStruct;
1597
1598 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1599 {
1600 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1601 int count;
1602
1603 count = min(cb, pStruct->length - pStruct->pos);
1604 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1605 pStruct->pos += count;
1606 *pcb = count;
1607 return 0;
1608 }
1609
1610 static void
1611 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1612 {
1613 EDITSTREAM es;
1614 ME_RTFStringStreamStruct data;
1615
1616 data.string = string;
1617 data.length = strlen(string);
1618 data.pos = 0;
1619 es.dwCookie = (DWORD)&data;
1620 es.pfnCallback = ME_ReadFromRTFString;
1621 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1622 }
1623
1624
1625 ME_DisplayItem *
1626 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1627 {
1628 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1629 int runLength;
1630
1631 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1632 item = ME_FindItemFwd(item, diParagraph);
1633
1634 if (!item)
1635 return item;
1636
1637 nOffset -= item->member.para.nCharOfs;
1638 if (nItemType == diParagraph) {
1639 if (nItemOffset)
1640 *nItemOffset = nOffset;
1641 return item;
1642 }
1643
1644 do {
1645 item = ME_FindItemFwd(item, diRun);
1646 runLength = ME_StrLen(item->member.run.strText);
1647 if (item->member.run.nFlags & MERF_ENDPARA)
1648 runLength = item->member.run.nCR + item->member.run.nLF;
1649 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1650 if (item) {
1651 nOffset -= item->member.run.nCharOfs;
1652
1653 /* Special case: nOffset may not point exactly at the division between the
1654 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1655 into the next run, if one exists
1656 */
1657 if ( item->member.run.nFlags & MERF_ENDPARA
1658 && nOffset == item->member.run.nCR
1659 && item->member.run.nLF > 0) {
1660 ME_DisplayItem *nextItem;
1661 nextItem = ME_FindItemFwd(item, diRun);
1662 if (nextItem) {
1663 nOffset = 0;
1664 item = nextItem;
1665 }
1666 }
1667 if (nItemOffset)
1668 *nItemOffset = nOffset;
1669 }
1670 return item;
1671 }
1672
1673
1674 static int
1675 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1676 {
1677 const int nLen = lstrlenW(text);
1678 const int nTextLen = ME_GetTextLength(editor);
1679 int nStart, nEnd;
1680 int nMin, nMax;
1681 ME_DisplayItem *item;
1682 ME_DisplayItem *para;
1683 WCHAR wLastChar = ' ';
1684
1685 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1686 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1687
1688 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1689 FIXME("Flags 0x%08x not implemented\n",
1690 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1691
1692 nMin = chrg->cpMin;
1693 if (chrg->cpMax == -1)
1694 nMax = nTextLen;
1695 else
1696 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1697
1698 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1699 if (editor->bEmulateVersion10 && nMax == nTextLen)
1700 {
1701 flags |= FR_DOWN;
1702 }
1703
1704 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1705 if (editor->bEmulateVersion10 && nMax < nMin)
1706 {
1707 if (chrgText)
1708 {
1709 chrgText->cpMin = -1;
1710 chrgText->cpMax = -1;
1711 }
1712 return -1;
1713 }
1714
1715 /* when searching up, if cpMin < cpMax, then instead of searching
1716 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1717 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1718 * case, it is always bigger than cpMin.
1719 */
1720 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1721 {
1722 int nSwap = nMax;
1723
1724 nMax = nMin > nTextLen ? nTextLen : nMin;
1725 if (nMin < nSwap || chrg->cpMax == -1)
1726 nMin = 0;
1727 else
1728 nMin = nSwap;
1729 }
1730
1731 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1732 {
1733 if (chrgText)
1734 chrgText->cpMin = chrgText->cpMax = -1;
1735 return -1;
1736 }
1737
1738 if (flags & FR_DOWN) /* Forward search */
1739 {
1740 /* If possible, find the character before where the search starts */
1741 if ((flags & FR_WHOLEWORD) && nMin)
1742 {
1743 nStart = nMin - 1;
1744 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1745 if (!item)
1746 {
1747 if (chrgText)
1748 chrgText->cpMin = chrgText->cpMax = -1;
1749 return -1;
1750 }
1751 wLastChar = item->member.run.strText->szData[nStart];
1752 }
1753
1754 nStart = nMin;
1755 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1756 if (!item)
1757 {
1758 if (chrgText)
1759 chrgText->cpMin = chrgText->cpMax = -1;
1760 return -1;
1761 }
1762
1763 para = ME_GetParagraph(item);
1764 while (item
1765 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1766 {
1767 ME_DisplayItem *pCurItem = item;
1768 int nCurStart = nStart;
1769 int nMatched = 0;
1770
1771 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1772 {
1773 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1774 break;
1775
1776 nMatched++;
1777 if (nMatched == nLen)
1778 {
1779 ME_DisplayItem *pNextItem = pCurItem;
1780 int nNextStart = nCurStart;
1781 WCHAR wNextChar;
1782
1783 /* Check to see if next character is a whitespace */
1784 if (flags & FR_WHOLEWORD)
1785 {
1786 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1787 {
1788 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1789 nNextStart = -nMatched;
1790 }
1791
1792 if (pNextItem)
1793 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1794 else
1795 wNextChar = ' ';
1796
1797 if (isalnumW(wNextChar))
1798 break;
1799 }
1800
1801 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1802 if (chrgText)
1803 {
1804 chrgText->cpMin = nStart;
1805 chrgText->cpMax = nStart + nLen;
1806 }
1807 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1808 return nStart;
1809 }
1810 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1811 {
1812 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1813 para = ME_GetParagraph(pCurItem);
1814 nCurStart = -nMatched;
1815 }
1816 }
1817 if (pCurItem)
1818 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1819 else
1820 wLastChar = ' ';
1821
1822 nStart++;
1823 if (nStart == ME_StrLen(item->member.run.strText))
1824 {
1825 item = ME_FindItemFwd(item, diRun);
1826 para = ME_GetParagraph(item);
1827 nStart = 0;
1828 }
1829 }
1830 }
1831 else /* Backward search */
1832 {
1833 /* If possible, find the character after where the search ends */
1834 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1835 {
1836 nEnd = nMax + 1;
1837 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1838 if (!item)
1839 {
1840 if (chrgText)
1841 chrgText->cpMin = chrgText->cpMax = -1;
1842 return -1;
1843 }
1844 wLastChar = item->member.run.strText->szData[nEnd];
1845 }
1846
1847 nEnd = nMax;
1848 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1849 if (!item)
1850 {
1851 if (chrgText)
1852 chrgText->cpMin = chrgText->cpMax = -1;
1853 return -1;
1854 }
1855
1856 para = ME_GetParagraph(item);
1857
1858 while (item
1859 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1860 {
1861 ME_DisplayItem *pCurItem = item;
1862 int nCurEnd = nEnd;
1863 int nMatched = 0;
1864
1865 if (nCurEnd - nMatched == 0)
1866 {
1867 pCurItem = ME_FindItemBack(pCurItem, diRun);
1868 para = ME_GetParagraph(pCurItem);
1869 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1870 }
1871
1872 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1873 {
1874 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1875 break;
1876
1877 nMatched++;
1878 if (nMatched == nLen)
1879 {
1880 ME_DisplayItem *pPrevItem = pCurItem;
1881 int nPrevEnd = nCurEnd;
1882 WCHAR wPrevChar;
1883
1884 /* Check to see if previous character is a whitespace */
1885 if (flags & FR_WHOLEWORD)
1886 {
1887 if (nPrevEnd - nMatched == 0)
1888 {
1889 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1890 if (pPrevItem)
1891 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1892 }
1893
1894 if (pPrevItem)
1895 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1896 else
1897 wPrevChar = ' ';
1898
1899 if (isalnumW(wPrevChar))
1900 break;
1901 }
1902
1903 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1904 if (chrgText)
1905 {
1906 chrgText->cpMin = nStart;
1907 chrgText->cpMax = nStart + nLen;
1908 }
1909 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1910 return nStart;
1911 }
1912 if (nCurEnd - nMatched == 0)
1913 {
1914 pCurItem = ME_FindItemBack(pCurItem, diRun);
1915 /* Don't care about pCurItem becoming NULL here; it's already taken
1916 * care of in the exterior loop condition */
1917 para = ME_GetParagraph(pCurItem);
1918 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1919 }
1920 }
1921 if (pCurItem)
1922 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1923 else
1924 wLastChar = ' ';
1925
1926 nEnd--;
1927 if (nEnd < 0)
1928 {
1929 item = ME_FindItemBack(item, diRun);
1930 para = ME_GetParagraph(item);
1931 nEnd = ME_StrLen(item->member.run.strText);
1932 }
1933 }
1934 }
1935 TRACE("not found\n");
1936 if (chrgText)
1937 chrgText->cpMin = chrgText->cpMax = -1;
1938 return -1;
1939 }
1940
1941 /* helper to send a msg filter notification */
1942 static BOOL
1943 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1944 {
1945 MSGFILTER msgf;
1946
1947 msgf.nmhdr.hwndFrom = editor->hWnd;
1948 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1949 msgf.nmhdr.code = EN_MSGFILTER;
1950 msgf.msg = msg;
1951
1952 msgf.wParam = *wParam;
1953 msgf.lParam = *lParam;
1954 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1955 return FALSE;
1956 *wParam = msgf.wParam;
1957 *lParam = msgf.lParam;
1958 msgf.wParam = *wParam;
1959
1960 return TRUE;
1961 }
1962
1963 static BOOL
1964 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1965 {
1966 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1967 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1968
1969 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
1970 editor->nSelectionType = stPosition;
1971
1972 switch (nKey)
1973 {
1974 case VK_LEFT:
1975 case VK_RIGHT:
1976 case VK_HOME:
1977 case VK_END:
1978 editor->nUDArrowX = -1;
1979 /* fall through */
1980 case VK_UP:
1981 case VK_DOWN:
1982 case VK_PRIOR:
1983 case VK_NEXT:
1984 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
1985 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1986 return TRUE;
1987 case VK_BACK:
1988 case VK_DELETE:
1989 editor->nUDArrowX = -1;
1990 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1991 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1992 return FALSE;
1993 if (ME_IsSelection(editor))
1994 {
1995 ME_DeleteSelection(editor);
1996 ME_CommitUndo(editor);
1997 }
1998 else if (nKey == VK_DELETE)
1999 {
2000 /* Delete stops group typing.
2001 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2002 ME_DeleteTextAtCursor(editor, 1, 1);
2003 ME_CommitUndo(editor);
2004 }
2005 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2006 {
2007 BOOL bDeletionSucceeded;
2008 /* Backspace can be grouped for a single undo */
2009 ME_ContinueCoalescingTransaction(editor);
2010 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2011 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2012 /* Deletion was prevented so the cursor is moved back to where it was.
2013 * (e.g. this happens when trying to delete cell boundaries)
2014 */
2015 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2016 }
2017 ME_CommitCoalescingUndo(editor);
2018 }
2019 else
2020 return TRUE;
2021 ME_MoveCursorFromTableRowStartParagraph(editor);
2022 ME_UpdateSelectionLinkAttribute(editor);
2023 ME_UpdateRepaint(editor);
2024 ME_SendRequestResize(editor, FALSE);
2025 return TRUE;
2026
2027 default:
2028 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2029 editor->nUDArrowX = -1;
2030 if (ctrl_is_down)
2031 {
2032 if (nKey == 'W')
2033 {
2034 CHARFORMAT2W chf;
2035 char buf[2048];
2036 chf.cbSize = sizeof(chf);
2037
2038 ME_GetSelectionCharFormat(editor, &chf);
2039 ME_DumpStyleToBuf(&chf, buf);
2040 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2041 }
2042 if (nKey == 'Q')
2043 {
2044 ME_CheckCharOffsets(editor);
2045 }
2046 }
2047 }
2048 return FALSE;
2049 }
2050
2051 /* Process the message and calculate the new click count.
2052 *
2053 * returns: The click count if it is mouse down event, else returns 0. */
2054 static int ME_CalculateClickCount(HWND hWnd, UINT msg, WPARAM wParam,
2055 LPARAM lParam)
2056 {
2057 static int clickNum = 0;
2058 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2059 return 0;
2060
2061 if ((msg == WM_LBUTTONDBLCLK) ||
2062 (msg == WM_RBUTTONDBLCLK) ||
2063 (msg == WM_MBUTTONDBLCLK) ||
2064 (msg == WM_XBUTTONDBLCLK))
2065 {
2066 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2067 }
2068
2069 if ((msg == WM_LBUTTONDOWN) ||
2070 (msg == WM_RBUTTONDOWN) ||
2071 (msg == WM_MBUTTONDOWN) ||
2072 (msg == WM_XBUTTONDOWN))
2073 {
2074 static MSG prevClickMsg;
2075 MSG clickMsg;
2076 clickMsg.hwnd = hWnd;
2077 clickMsg.message = msg;
2078 clickMsg.wParam = wParam;
2079 clickMsg.lParam = lParam;
2080 clickMsg.time = GetMessageTime();
2081 clickMsg.pt.x = (short)LOWORD(lParam);
2082 clickMsg.pt.y = (short)HIWORD(lParam);
2083 if ((clickNum != 0) &&
2084 (clickMsg.message == prevClickMsg.message) &&
2085 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2086 (clickMsg.wParam == prevClickMsg.wParam) &&
2087 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2088 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2089 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2090 {
2091 clickNum++;
2092 } else {
2093 clickNum = 1;
2094 }
2095 prevClickMsg = clickMsg;
2096 } else {
2097 return 0;
2098 }
2099 return clickNum;
2100 }
2101
2102 static BOOL ME_SetCursor(ME_TextEditor *editor)
2103 {
2104 POINT pt;
2105 BOOL isExact;
2106 int offset;
2107 SCROLLBARINFO sbi;
2108 DWORD messagePos = GetMessagePos();
2109 pt.x = (short)LOWORD(messagePos);
2110 pt.y = (short)HIWORD(messagePos);
2111
2112 sbi.cbSize = sizeof(sbi);
2113 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2114 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2115 PtInRect(&sbi.rcScrollBar, pt))
2116 {
2117 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2118 return TRUE;
2119 }
2120 sbi.cbSize = sizeof(sbi);
2121 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2122 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2123 PtInRect(&sbi.rcScrollBar, pt))
2124 {
2125 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2126 return TRUE;
2127 }
2128 ScreenToClient(editor->hWnd, &pt);
2129
2130 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
2131 (pt.x < editor->selofs ||
2132 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
2133 {
2134 SetCursor(hLeft);
2135 return TRUE;
2136 }
2137 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
2138 if (isExact)
2139 {
2140 if (editor->AutoURLDetect_bEnable)
2141 {
2142 ME_Cursor cursor;
2143 ME_Run *run;
2144 ME_CursorFromCharOfs(editor, offset, &cursor);
2145 run = &cursor.pRun->member.run;
2146 if (editor->AutoURLDetect_bEnable &&
2147 run->style->fmt.dwMask & CFM_LINK &&
2148 run->style->fmt.dwEffects & CFE_LINK)
2149 {
2150 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
2151 return TRUE;
2152 }
2153 }
2154 if (ME_IsSelection(editor))
2155 {
2156 int selStart, selEnd;
2157 ME_GetSelection(editor, &selStart, &selEnd);
2158 if (selStart <= offset && selEnd >= offset) {
2159 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2160 return TRUE;
2161 }
2162 }
2163 }
2164 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
2165 return TRUE;
2166 }
2167
2168 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2169 {
2170 CHARRANGE selrange;
2171 HMENU menu;
2172 int seltype = 0;
2173 if(!editor->lpOleCallback)
2174 return FALSE;
2175 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
2176 if(selrange.cpMin == selrange.cpMax)
2177 seltype |= SEL_EMPTY;
2178 else
2179 {
2180 /* FIXME: Handle objects */
2181 seltype |= SEL_TEXT;
2182 if(selrange.cpMax-selrange.cpMin > 1)
2183 seltype |= SEL_MULTICHAR;
2184 }
2185 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2186 {
2187 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
2188 DestroyMenu(menu);
2189 }
2190 return TRUE;
2191 }
2192
2193 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
2194 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2195 int i;
2196 ed->hWnd = hWnd;
2197 ed->bEmulateVersion10 = FALSE;
2198 ed->pBuffer = ME_MakeText();
2199 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2200 ME_MakeFirstParagraph(ed);
2201 /* The four cursors are for:
2202 * 0 - The position where the caret is shown
2203 * 1 - The anchored end of the selection (for normal selection)
2204 * 2 & 3 - The anchored start and end respectively for word, line,
2205 * or paragraph selection.
2206 */
2207 ed->nCursors = 4;
2208 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2209 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2210 ed->pCursors[0].nOffset = 0;
2211 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2212 ed->pCursors[1].nOffset = 0;
2213 ed->pCursors[2] = ed->pCursors[0];
2214 ed->pCursors[3] = ed->pCursors[1];
2215 ed->nLastTotalLength = ed->nTotalLength = 0;
2216 ed->nHeight = 0;
2217 ed->nUDArrowX = -1;
2218 ed->nSequence = 0;
2219 ed->rgbBackColor = -1;
2220 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2221 ed->bCaretAtEnd = FALSE;
2222 ed->nEventMask = 0;
2223 ed->nModifyStep = 0;
2224 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2225 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2226 ed->nUndoStackSize = 0;
2227 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2228 ed->nUndoMode = umAddToUndo;
2229 ed->nParagraphs = 1;
2230 ed->nLastSelStart = ed->nLastSelEnd = 0;
2231 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
2232 ed->bRedraw = TRUE;
2233 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & (WS_HSCROLL|ES_AUTOHSCROLL)) ? FALSE : TRUE;
2234 ed->bHideSelection = FALSE;
2235 ed->nInvalidOfs = -1;
2236 ed->pfnWordBreak = NULL;
2237 ed->lpOleCallback = NULL;
2238 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2239 ed->AutoURLDetect_bEnable = FALSE;
2240 ed->bHaveFocus = FALSE;
2241 for (i=0; i<HFONT_CACHE_SIZE; i++)
2242 {
2243 ed->pFontCache[i].nRefs = 0;
2244 ed->pFontCache[i].nAge = 0;
2245 ed->pFontCache[i].hFont = NULL;
2246 }
2247
2248 ME_CheckCharOffsets(ed);
2249 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
2250 ed->selofs = SELECTIONBAR_WIDTH;
2251 else
2252 ed->selofs = 0;
2253 ed->nSelectionType = stPosition;
2254
2255 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
2256 ed->cPasswordMask = '*';
2257 else
2258 ed->cPasswordMask = 0;
2259
2260 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2261
2262 /* Default vertical scrollbar information */
2263 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2264 ed->vert_si.nMin = 0;
2265 ed->vert_si.nMax = 0;
2266 ed->vert_si.nPage = 0;
2267 ed->vert_si.nPos = 0;
2268
2269 OleInitialize(NULL);
2270
2271 return ed;
2272 }
2273
2274 typedef struct tagME_GlobalDestStruct
2275 {
2276 HGLOBAL hData;
2277 int nLength;
2278 } ME_GlobalDestStruct;
2279
2280 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2281 {
2282 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2283 int i;
2284 WORD *pSrc, *pDest;
2285
2286 cb = cb >> 1;
2287 pDest = (WORD *)lpBuff;
2288 pSrc = (WORD *)GlobalLock(pData->hData);
2289 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2290 pDest[i] = pSrc[pData->nLength+i];
2291 }
2292 pData->nLength += i;
2293 *pcb = 2*i;
2294 GlobalUnlock(pData->hData);
2295 return 0;
2296 }
2297
2298 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2299 {
2300 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2301 int i;
2302 BYTE *pSrc, *pDest;
2303
2304 pDest = lpBuff;
2305 pSrc = (BYTE *)GlobalLock(pData->hData);
2306 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2307 pDest[i] = pSrc[pData->nLength+i];
2308 }
2309 pData->nLength += i;
2310 *pcb = i;
2311 GlobalUnlock(pData->hData);
2312 return 0;
2313 }
2314
2315
2316 void ME_DestroyEditor(ME_TextEditor *editor)
2317 {
2318 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2319 ME_DisplayItem *p = pFirst, *pNext = NULL;
2320 int i;
2321
2322 ME_ClearTempStyle(editor);
2323 ME_EmptyUndoStack(editor);
2324 while(p) {
2325 pNext = p->next;
2326 ME_DestroyDisplayItem(p);
2327 p = pNext;
2328 }
2329 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2330 for (i=0; i<HFONT_CACHE_SIZE; i++)
2331 {
2332 if (editor->pFontCache[i].hFont)
2333 DeleteObject(editor->pFontCache[i].hFont);
2334 }
2335 if (editor->rgbBackColor != -1)
2336 DeleteObject(editor->hbrBackground);
2337 if(editor->lpOleCallback)
2338 IUnknown_Release(editor->lpOleCallback);
2339 OleUninitialize();
2340
2341 FREE_OBJ(editor->pBuffer);
2342 FREE_OBJ(editor->pCursors);
2343
2344 FREE_OBJ(editor);
2345 }
2346
2347 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2348 {
2349 TRACE("\n");
2350 switch (fdwReason)
2351 {
2352 case DLL_PROCESS_ATTACH:
2353 DisableThreadLibraryCalls(hinstDLL);
2354 me_heap = HeapCreate (0, 0x10000, 0);
2355 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2356 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2357 LookupInit();
2358 break;
2359
2360 case DLL_PROCESS_DETACH:
2361 UnregisterClassW(RichEdit20W, 0);
2362 UnregisterClassW(RichEdit50W, 0);
2363 UnregisterClassA("RichEdit20A", 0);
2364 UnregisterClassA("RichEdit50A", 0);
2365 if (ME_ListBoxRegistered)
2366 UnregisterClassW(REListBox20W, 0);
2367 if (ME_ComboBoxRegistered)
2368 UnregisterClassW(REComboBox20W, 0);
2369 LookupCleanup();
2370 HeapDestroy (me_heap);
2371 me_heap = NULL;
2372 break;
2373 }
2374 return TRUE;
2375 }
2376
2377
2378 #define UNSUPPORTED_MSG(e) \
2379 case e: \
2380 FIXME(#e ": stub\n"); \
2381 return DefWindowProcW(hWnd, msg, wParam, lParam);
2382
2383 static const char * const edit_messages[] = {
2384 "EM_GETSEL",
2385 "EM_SETSEL",
2386 "EM_GETRECT",
2387 "EM_SETRECT",
2388 "EM_SETRECTNP",
2389 "EM_SCROLL",
2390 "EM_LINESCROLL",
2391 "EM_SCROLLCARET",
2392 "EM_GETMODIFY",
2393 "EM_SETMODIFY",
2394 "EM_GETLINECOUNT",
2395 "EM_LINEINDEX",
2396 "EM_SETHANDLE",
2397 "EM_GETHANDLE",
2398 "EM_GETTHUMB",
2399 "EM_UNKNOWN_BF",
2400 "EM_UNKNOWN_C0",
2401 "EM_LINELENGTH",
2402 "EM_REPLACESEL",
2403 "EM_UNKNOWN_C3",
2404 "EM_GETLINE",
2405 "EM_LIMITTEXT",
2406 "EM_CANUNDO",
2407 "EM_UNDO",
2408 "EM_FMTLINES",
2409 "EM_LINEFROMCHAR",
2410 "EM_UNKNOWN_CA",
2411 "EM_SETTABSTOPS",
2412 "EM_SETPASSWORDCHAR",
2413 "EM_EMPTYUNDOBUFFER",
2414 "EM_GETFIRSTVISIBLELINE",
2415 "EM_SETREADONLY",
2416 "EM_SETWORDBREAKPROC",
2417 "EM_GETWORDBREAKPROC",
2418 "EM_GETPASSWORDCHAR",
2419 "EM_SETMARGINS",
2420 "EM_GETMARGINS",
2421 "EM_GETLIMITTEXT",
2422 "EM_POSFROMCHAR",
2423 "EM_CHARFROMPOS"
2424 };
2425
2426 static const char * const richedit_messages[] = {
2427 "EM_CANPASTE",
2428 "EM_DISPLAYBAND",
2429 "EM_EXGETSEL",
2430 "EM_EXLIMITTEXT",
2431 "EM_EXLINEFROMCHAR",
2432 "EM_EXSETSEL",
2433 "EM_FINDTEXT",
2434 "EM_FORMATRANGE",
2435 "EM_GETCHARFORMAT",
2436 "EM_GETEVENTMASK",
2437 "EM_GETOLEINTERFACE",
2438 "EM_GETPARAFORMAT",
2439 "EM_GETSELTEXT",
2440 "EM_HIDESELECTION",
2441 "EM_PASTESPECIAL",
2442 "EM_REQUESTRESIZE",
2443 "EM_SELECTIONTYPE",
2444 "EM_SETBKGNDCOLOR",
2445 "EM_SETCHARFORMAT",
2446 "EM_SETEVENTMASK",
2447 "EM_SETOLECALLBACK",
2448 "EM_SETPARAFORMAT",
2449 "EM_SETTARGETDEVICE",
2450 "EM_STREAMIN",
2451 "EM_STREAMOUT",
2452 "EM_GETTEXTRANGE",
2453 "EM_FINDWORDBREAK",
2454 "EM_SETOPTIONS",
2455 "EM_GETOPTIONS",
2456 "EM_FINDTEXTEX",
2457 "EM_GETWORDBREAKPROCEX",
2458 "EM_SETWORDBREAKPROCEX",
2459 "EM_SETUNDOLIMIT",
2460 "EM_UNKNOWN_USER_83",
2461 "EM_REDO",
2462 "EM_CANREDO",
2463 "EM_GETUNDONAME",
2464 "EM_GETREDONAME",
2465 "EM_STOPGROUPTYPING",
2466 "EM_SETTEXTMODE",
2467 "EM_GETTEXTMODE",
2468 "EM_AUTOURLDETECT",
2469 "EM_GETAUTOURLDETECT",
2470 "EM_SETPALETTE",
2471 "EM_GETTEXTEX",
2472 "EM_GETTEXTLENGTHEX",
2473 "EM_SHOWSCROLLBAR",
2474 "EM_SETTEXTEX",
2475 "EM_UNKNOWN_USER_98",
2476 "EM_UNKNOWN_USER_99",
2477 "EM_SETPUNCTUATION",
2478 "EM_GETPUNCTUATION",
2479 "EM_SETWORDWRAPMODE",
2480 "EM_GETWORDWRAPMODE",
2481 "EM_SETIMECOLOR",
2482 "EM_GETIMECOLOR",
2483 "EM_SETIMEOPTIONS",
2484 "EM_GETIMEOPTIONS",
2485 "EM_CONVPOSITION",
2486 "EM_UNKNOWN_USER_109",
2487 "EM_UNKNOWN_USER_110",
2488 "EM_UNKNOWN_USER_111",
2489 "EM_UNKNOWN_USER_112",
2490 "EM_UNKNOWN_USER_113",
2491 "EM_UNKNOWN_USER_114",
2492 "EM_UNKNOWN_USER_115",
2493 "EM_UNKNOWN_USER_116",
2494 "EM_UNKNOWN_USER_117",
2495 "EM_UNKNOWN_USER_118",
2496 "EM_UNKNOWN_USER_119",
2497 "EM_SETLANGOPTIONS",
2498 "EM_GETLANGOPTIONS",
2499 "EM_GETIMECOMPMODE",
2500 "EM_FINDTEXTW",
2501 "EM_FINDTEXTEXW",
2502 "EM_RECONVERSION",
2503 "EM_SETIMEMODEBIAS",
2504 "EM_GETIMEMODEBIAS"
2505 };
2506
2507 static const char *
2508 get_msg_name(UINT msg)
2509 {
2510 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2511 return edit_messages[msg - EM_GETSEL];
2512 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2513 return richedit_messages[msg - EM_CANPASTE];
2514 return "";
2515 }
2516
2517 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2518 LPARAM lParam, BOOL unicode)
2519 {
2520 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2521
2522 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2523 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2524
2525 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
2526 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2527 return 0;
2528 }
2529
2530 switch(msg) {
2531
2532 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2533 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2534 UNSUPPORTED_MSG(EM_FMTLINES)
2535 UNSUPPORTED_MSG(EM_FORMATRANGE)
2536 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2537 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2538 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2539 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
2540 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2541 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2542 UNSUPPORTED_MSG(EM_GETREDONAME)
2543 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2544 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2545 UNSUPPORTED_MSG(EM_GETUNDONAME)
2546 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2547 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2548 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2549 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2550 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2551 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2552 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2553 UNSUPPORTED_MSG(EM_SETMARGINS)
2554 UNSUPPORTED_MSG(EM_SETPALETTE)
2555 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2556 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2557 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2558 UNSUPPORTED_MSG(WM_STYLECHANGING)
2559 UNSUPPORTED_MSG(WM_STYLECHANGED)
2560
2561 /* Messages specific to Richedit controls */
2562
2563 case EM_STREAMIN:
2564 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2565 case EM_STREAMOUT:
2566 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2567 case WM_GETDLGCODE:
2568 {
2569 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2570 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2571 {
2572 int vk = (int)((LPMSG)lParam)->wParam;
2573 /* if style says we want return key */
2574 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2575 {
2576 code |= DLGC_WANTMESSAGE;
2577 }
2578 /* we always handle ctrl-tab */
2579 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2580 {
2581 code |= DLGC_WANTMESSAGE;
2582 }
2583 }
2584 return code;
2585 }
2586 case WM_NCCREATE:
2587 {
2588 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2589 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2590 editor = ME_MakeEditor(hWnd);
2591 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2592 return TRUE;
2593 }
2594 case EM_EMPTYUNDOBUFFER:
2595 ME_EmptyUndoStack(editor);
2596 return 0;
2597 case EM_GETSEL:
2598 {
2599 /* Note: wParam/lParam can be NULL */
2600 UINT from, to;
2601 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2602 PUINT pto = lParam ? (PUINT)lParam : &to;
2603 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2604 if ((*pfrom|*pto) & 0xFFFF0000)
2605 return -1;
2606 return MAKELONG(*pfrom,*pto);
2607 }
2608 case EM_EXGETSEL:
2609 {
2610 CHARRANGE *pRange = (CHARRANGE *)lParam;
2611 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2612 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2613 return 0;
2614 }
2615 case EM_SETUNDOLIMIT:
2616 {
2617 if ((int)wParam < 0)
2618 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2619 else
2620 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2621 /* Setting a max stack size keeps wine from getting killed
2622 for hogging memory. Windows allocates all this memory at once, so
2623 no program would realistically set a value above our maximum. */
2624 return editor->nUndoLimit;
2625 }
2626 case EM_CANUNDO:
2627 return editor->pUndoStack != NULL;
2628 case EM_CANREDO:
2629 return editor->pRedoStack != NULL;
2630 case WM_UNDO: /* FIXME: actually not the same */
2631 case EM_UNDO:
2632 return ME_Undo(editor);
2633 case EM_REDO:
2634 return ME_Redo(editor);
2635 case EM_GETOPTIONS:
2636 {
2637 /* these flags are equivalent to the ES_* counterparts */
2638 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2639 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2640 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2641
2642 return settings;
2643 }
2644 case EM_SETOPTIONS:
2645 {
2646 /* these flags are equivalent to ES_* counterparts
2647 * ECO_READONLY is already implemented in the code, only requires
2648 * setting the bit to work
2649 */
2650 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2651 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2652 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2653 DWORD settings = mask & raw;
2654
2655 switch(wParam)
2656 {
2657 case ECOOP_SET:
2658 settings = lParam;
2659 break;
2660 case ECOOP_OR:
2661 settings |= lParam;
2662 break;
2663 case ECOOP_AND:
2664 settings &= lParam;
2665 break;
2666 case ECOOP_XOR:
2667 settings ^= lParam;
2668 }
2669 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2670
2671 if (settings & ECO_AUTOWORDSELECTION)
2672 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2673 if (settings & ECO_SELECTIONBAR)
2674 editor->selofs = SELECTIONBAR_WIDTH;
2675 else
2676 editor->selofs = 0;
2677 ME_WrapMarkedParagraphs(editor);
2678
2679 if (settings & ECO_VERTICAL)
2680 FIXME("ECO_VERTICAL not implemented yet!\n");
2681 if (settings & ECO_AUTOHSCROLL)
2682 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2683 if (settings & ECO_AUTOVSCROLL)
2684 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2685 if (settings & ECO_NOHIDESEL)
2686 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2687 if (settings & ECO_WANTRETURN)
2688 FIXME("ECO_WANTRETURN not implemented yet!\n");
2689
2690 return settings;
2691 }
2692 case EM_SETSEL:
2693 {
2694 ME_InvalidateSelection(editor);
2695 ME_SetSelection(editor, wParam, lParam);
2696 ME_InvalidateSelection(editor);
2697 HideCaret(editor->hWnd);
2698 ME_ShowCaret(editor);
2699 ME_SendSelChange(editor);
2700 return 0;
2701 }
2702 case EM_SETSCROLLPOS:
2703 {
2704 POINT *point = (POINT *)lParam;
2705 ME_ScrollAbs(editor, point->y);
2706 return 0;
2707 }
2708 case EM_AUTOURLDETECT:
2709 {
2710 if (wParam==1 || wParam ==0)
2711 {
2712 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2713 return 0;
2714 }
2715 return E_INVALIDARG;
2716 }
2717 case EM_GETAUTOURLDETECT:
2718 {
2719 return editor->AutoURLDetect_bEnable;
2720 }
2721 case EM_EXSETSEL:
2722 {
2723 int end;
2724 CHARRANGE range = *(CHARRANGE *)lParam;
2725
2726 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2727
2728 ME_InvalidateSelection(editor);
2729 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2730 ME_InvalidateSelection(editor);
2731 HideCaret(editor->hWnd);
2732 ME_ShowCaret(editor);
2733 ME_SendSelChange(editor);
2734
2735 return end;
2736 }
2737 case EM_SHOWSCROLLBAR:
2738 {
2739 ShowScrollBar(editor->hWnd, wParam, lParam);
2740 return 0;
2741 }
2742 case EM_SETTEXTEX:
2743 {
2744 LPWSTR wszText;
2745 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2746 size_t len;
2747 int from, to;
2748 ME_Style *style;
2749 int oldModify = editor->nModifyStep;
2750
2751 if (!pStruct) return 0;
2752
2753 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2754 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2755 pStruct->flags, pStruct->codepage);
2756
2757 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2758 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2759 len = wszText ? lstrlenW(wszText) : 0;
2760
2761 if (pStruct->flags & ST_SELECTION) {
2762 ME_GetSelection(editor, &from, &to);
2763 style = ME_GetSelectionInsertStyle(editor);
2764 ME_InternalDeleteText(editor, from, to - from, FALSE);
2765 if (pStruct->codepage != 1200 && lParam &&
2766 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
2767 ME_StreamInRTFString(editor, 1, (char *)lParam);
2768 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2769 ME_ReleaseStyle(style);
2770
2771 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2772 }
2773 else {
2774 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
2775 if (pStruct->codepage != 1200 && lParam &&
2776 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
2777 ME_StreamInRTFString(editor, 0, (char *)lParam);
2778 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2779 len = 1;
2780
2781 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2782 }
2783 ME_CommitUndo(editor);
2784 if (!(pStruct->flags & ST_KEEPUNDO))
2785 {
2786 editor->nModifyStep = oldModify;
2787 ME_EmptyUndoStack(editor);
2788 }
2789 ME_UpdateRepaint(editor);
2790 return len;
2791 }
2792 case EM_SETBKGNDCOLOR:
2793 {
2794 LRESULT lColor;
2795 if (editor->rgbBackColor != -1) {
2796 DeleteObject(editor->hbrBackground);
2797 lColor = editor->rgbBackColor;
2798 }
2799 else lColor = GetSysColor(COLOR_WINDOW);
2800
2801 if (wParam)
2802 {
2803 editor->rgbBackColor = -1;
2804 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2805 }
2806 else
2807 {
2808 editor->rgbBackColor = lParam;
2809 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2810 }
2811 if (editor->bRedraw)
2812 {
2813 InvalidateRect(hWnd, NULL, TRUE);
2814 UpdateWindow(hWnd);
2815 }
2816 return lColor;
2817 }
2818 case EM_GETMODIFY:
2819 return editor->nModifyStep == 0 ? 0 : -1;
2820 case EM_SETMODIFY:
2821 {
2822 if (wParam)
2823 editor->nModifyStep = 1;
2824 else
2825 editor->nModifyStep = 0;
2826
2827 return 0;
2828 }
2829 case EM_SETREADONLY:
2830 {
2831 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2832 if (wParam)
2833 nStyle |= ES_READONLY;
2834 else
2835 nStyle &= ~ES_READONLY;
2836 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2837 return 0;
2838 }
2839 case EM_SETEVENTMASK:
2840 {
2841 DWORD nOldMask = editor->nEventMask;
2842
2843 editor->nEventMask = lParam;
2844 return nOldMask;
2845 }
2846 case EM_GETEVENTMASK:
2847 return editor->nEventMask;
2848 case EM_SETCHARFORMAT:
2849 {
2850 CHARFORMAT2W buf, *p;
2851 BOOL bRepaint = TRUE;
2852 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2853 if (p == NULL) return 0;
2854 if (!wParam)
2855 ME_SetDefaultCharFormat(editor, p);
2856 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2857 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2858 return 0;
2859 } else if (wParam == SCF_ALL) {
2860 if (editor->mode & TM_PLAINTEXT)
2861 ME_SetDefaultCharFormat(editor, p);
2862 else {
2863 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2864 editor->nModifyStep = 1;
2865 }
2866 } else if (editor->mode & TM_PLAINTEXT) {
2867 return 0;
2868 } else {
2869 int from, to;
2870 ME_GetSelection(editor, &from, &to);
2871 bRepaint = (from != to);
2872 ME_SetSelectionCharFormat(editor, p);
2873 if (from != to) editor->nModifyStep = 1;
2874 }
2875 ME_CommitUndo(editor);
2876 if (bRepaint)
2877 ME_RewrapRepaint(editor);
2878 return 1;
2879 }
2880 case EM_GETCHARFORMAT:
2881 {
2882 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2883 if (dst->cbSize != sizeof(CHARFORMATA) &&
2884 dst->cbSize != sizeof(CHARFORMATW) &&
2885 dst->cbSize != sizeof(CHARFORMAT2A) &&
2886 dst->cbSize != sizeof(CHARFORMAT2W))
2887 return 0;
2888 tmp.cbSize = sizeof(tmp);
2889 if (!wParam)
2890 ME_GetDefaultCharFormat(editor, &tmp);
2891 else
2892 ME_GetSelectionCharFormat(editor, &tmp);
2893 ME_CopyToCFAny(dst, &tmp);
2894 return tmp.dwMask;
2895 }
2896 case EM_SETPARAFORMAT:
2897 {
2898 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2899 ME_RewrapRepaint(editor);
2900 ME_CommitUndo(editor);
2901 return result;
2902 }
2903 case EM_GETPARAFORMAT:
2904 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2905 return ((PARAFORMAT2 *)lParam)->dwMask;
2906 case EM_GETFIRSTVISIBLELINE:
2907 {
2908 ME_DisplayItem *p = editor->pBuffer->pFirst;
2909 int y = ME_GetYScrollPos(editor);
2910 int ypara = 0;
2911 int count = 0;
2912 int ystart, yend;
2913 while(p) {
2914 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
2915 if (p->type == diTextEnd)
2916 break;
2917 if (p->type == diParagraph) {
2918 ypara = p->member.para.pt.y;
2919 continue;
2920 }
2921 ystart = ypara + p->member.row.pt.y;
2922 yend = ystart + p->member.row.nHeight;
2923 if (y < yend) {
2924 break;
2925 }
2926 count++;
2927 }
2928 return count;
2929 }
2930 case EM_HIDESELECTION:
2931 {
2932 editor->bHideSelection = (wParam != 0);
2933 ME_InvalidateSelection(editor);
2934 return 0;
2935 }
2936 case EM_LINESCROLL:
2937 {
2938 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
2939 return TRUE; /* Should return false if a single line richedit control */
2940 }
2941 case WM_CLEAR:
2942 {
2943 int from, to;
2944 ME_GetSelection(editor, &from, &to);
2945 ME_InternalDeleteText(editor, from, to-from, FALSE);
2946 ME_CommitUndo(editor);
2947 ME_UpdateRepaint(editor);
2948 return 0;
2949 }
2950 case EM_REPLACESEL:
2951 {
2952 int from, to;
2953 ME_Style *style;
2954 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
2955 size_t len = wszText ? lstrlenW(wszText) : 0;
2956 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
2957
2958 ME_GetSelection(editor, &from, &to);
2959 style = ME_GetSelectionInsertStyle(editor);
2960 ME_InternalDeleteText(editor, from, to-from, FALSE);
2961 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2962 ME_ReleaseStyle(style);
2963 /* drop temporary style if line end */
2964 /*
2965 * FIXME question: does abc\n mean: put abc,
2966 * clear temp style, put \n? (would require a change)
2967 */
2968 if (len>0 && wszText[len-1] == '\n')
2969 ME_ClearTempStyle(editor);
2970 ME_EndToUnicode(unicode, wszText);
2971 ME_CommitUndo(editor);
2972 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2973 if (!wParam)
2974 ME_EmptyUndoStack(editor);
2975 ME_UpdateRepaint(editor);
2976 return len;
2977 }
2978 case EM_SCROLLCARET:
2979 {
2980 int top, bottom; /* row's edges relative to document top */
2981 int nPos;
2982 ME_DisplayItem *para, *row;
2983
2984 nPos = ME_GetYScrollPos(editor);
2985 row = ME_RowStart(editor->pCursors[0].pRun);
2986 para = ME_GetParagraph(row);
2987 top = para->member.para.pt.y + row->member.row.pt.y;
2988 bottom = top + row->member.row.nHeight;
2989
2990 if (top < nPos) /* caret above window */
2991 ME_ScrollAbs(editor, top);
2992 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
2993 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
2994 return 0;
2995 }
2996 case WM_SETFONT:
2997 {
2998 LOGFONTW lf;
2999 CHARFORMAT2W fmt;
3000 HDC hDC;
3001 BOOL bRepaint = LOWORD(lParam);
3002
3003 if (!wParam)
3004 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3005 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3006 hDC = GetDC(hWnd);
3007 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3008 ReleaseDC(hWnd, hDC);
3009 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
3010 ME_SetDefaultCharFormat(editor, &fmt);
3011
3012 ME_CommitUndo(editor);
3013 if (bRepaint)
3014 ME_RewrapRepaint(editor);
3015 return 0;
3016 }
3017 case WM_SETTEXT:
3018 {
3019 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3020 if (lParam)
3021 {
3022 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3023 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
3024 {
3025 /* Undocumented: WM_SETTEXT supports RTF text */
3026 ME_StreamInRTFString(editor, 0, (char *)lParam);
3027 }
3028 else
3029 {
3030 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3031 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3032 if (lstrlenW(wszText) > 0)
3033 {
3034 int len = -1;
3035
3036 /* uses default style! */
3037 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3038 {
3039 WCHAR * p;
3040
3041 p = wszText;
3042 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3043 len = p - wszText;
3044 }
3045 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3046 }
3047 ME_EndToUnicode(unicode, wszText);
3048 }
3049 }
3050 else
3051 TRACE("WM_SETTEXT - NULL\n");
3052 if (editor->AutoURLDetect_bEnable)
3053 {
3054 ME_UpdateLinkAttribute(editor, 0, -1);
3055 }
3056 ME_SetSelection(editor, 0, 0);
3057 editor->nModifyStep = 0;
3058 ME_CommitUndo(editor);
3059 ME_EmptyUndoStack(editor);
3060 ME_UpdateRepaint(editor);
3061 return 1;
3062 }
3063 case EM_CANPASTE:
3064 {
3065 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3066 if (IsClipboardFormatAvailable(nRTFFormat))
3067 return TRUE;
3068 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3069 return TRUE;
3070 return FALSE;
3071 }
3072 case WM_PASTE:
3073 {
3074 DWORD dwFormat = 0;
3075 EDITSTREAM es;
3076 ME_GlobalDestStruct gds;
3077 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3078 UINT cf = 0;
3079
3080 if (IsClipboardFormatAvailable(nRTFFormat))
3081 cf = nRTFFormat, dwFormat = SF_RTF;
3082 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3083 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
3084 else
3085 return 0;
3086
3087 if (!OpenClipboard(hWnd))
3088 return 0;
3089 gds.hData = GetClipboardData(cf);
3090 gds.nLength = 0;
3091 es.dwCookie = (DWORD)&gds;
3092 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
3093 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
3094
3095 CloseClipboard();
3096 return 0;
3097 }
3098 case WM_CUT:
3099 case WM_COPY:
3100 {
3101 LPDATAOBJECT dataObj = NULL;
3102 CHARRANGE range;
3103 HRESULT hr = S_OK;
3104
3105 if (editor->cPasswordMask)
3106 return 0; /* Copying or Cutting masked text isn't allowed */
3107
3108 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
3109 if(editor->lpOleCallback)
3110 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
3111 if(FAILED(hr) || !dataObj)
3112 hr = ME_GetDataObject(editor, &range, &dataObj);
3113 if(SUCCEEDED(hr)) {
3114 hr = OleSetClipboard(dataObj);
3115 IDataObject_Release(dataObj);
3116 }
3117 if (SUCCEEDED(hr) && msg == WM_CUT)
3118 {
3119 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
3120 ME_CommitUndo(editor);
3121 ME_UpdateRepaint(editor);
3122 }
3123 return 0;
3124 }
3125 case WM_GETTEXTLENGTH:
3126 {
3127 GETTEXTLENGTHEX how;
3128
3129 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3130 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3131 how.codepage = unicode ? 1200 : CP_ACP;
3132 return ME_GetTextLengthEx(editor, &how);
3133 }
3134 case EM_GETTEXTLENGTHEX:
3135 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3136 case WM_GETTEXT:
3137 {
3138 GETTEXTEX ex;
3139 LRESULT rc;
3140 LPSTR bufferA = NULL;
3141 LPWSTR bufferW = NULL;
3142
3143 if (unicode)
3144 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
3145 else
3146 bufferA = heap_alloc(wParam + 2);
3147
3148 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3149 ex.flags = GT_USECRLF;
3150 ex.codepage = unicode ? 1200 : CP_ACP;
3151 ex.lpDefaultChar = NULL;
3152 ex.lpUsedDefChar = NULL;
3153 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
3154
3155 if (unicode)
3156 {
3157 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
3158 if (lstrlenW(bufferW) >= wParam) rc = 0;
3159 }
3160 else
3161 {
3162 memcpy((LPSTR)lParam, bufferA, wParam);
3163 if (strlen(bufferA) >= wParam) rc = 0;
3164 }
3165 heap_free(bufferA);
3166 heap_free(bufferW);
3167 return rc;
3168 }
3169 case EM_GETTEXTEX:
3170 {
3171 GETTEXTEX *ex = (GETTEXTEX*)wParam;
3172 int nStart, nCount; /* in chars */
3173
3174 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
3175 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
3176
3177 if (ex->flags & GT_SELECTION)
3178 {
3179 ME_GetSelection(editor, &nStart, &nCount);
3180 nCount -= nStart;
3181 }
3182 else
3183 {
3184 nStart = 0;
3185 nCount = 0x7fffffff;
3186 }
3187 if (ex->codepage == 1200)
3188 {
3189 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
3190 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
3191 }
3192 else
3193 {
3194 /* potentially each char may be a CR, why calculate the exact value with O(N) when
3195 we can just take a bigger buffer? :)
3196 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
3197 occurs only in richedit 2.0 mode, in which line breaks have only one CR
3198 */
3199 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
3200 LPWSTR buffer;
3201 DWORD buflen = ex->cb;
3202 LRESULT rc;
3203 DWORD flags = 0;
3204
3205 nCount = min(nCount, ex->cb - 1);
3206 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
3207
3208 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
3209 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
3210 if (rc) rc--; /* do not count 0 terminator */
3211
3212 heap_free(buffer);
3213 return rc;
3214 }
3215 }
3216 case EM_GETSELTEXT:
3217 {
3218 int from, to;
3219 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
3220 ME_GetSelection(editor, &from, &to);
3221 tr.chrg.cpMin = from;
3222 tr.chrg.cpMax = to;
3223 tr.lpstrText = (WCHAR *)lParam;
3224 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
3225 }
3226 case EM_GETSCROLLPOS:
3227 {
3228 POINT *point = (POINT *)lParam;
3229 point->x = 0; /* FIXME side scrolling not implemented */
3230 point->y = ME_GetYScrollPos(editor);
3231 return 1;
3232 }
3233 case EM_GETTEXTRANGE:
3234 {
3235 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3236 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
3237 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
3238 editor->bEmulateVersion10, ME_GetTextLength(editor));
3239 if (unicode)
3240 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
3241 else
3242 {
3243 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
3244 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
3245 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
3246 /* FIXME this is a potential security hole (buffer overrun)
3247 if you know more about wchar->mbyte conversion please explain
3248 */
3249 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
3250 FREE_OBJ(p);
3251 return nChars;
3252 }
3253 }
3254 case EM_GETLINE:
3255 {
3256 ME_DisplayItem *run;
3257 const unsigned int nMaxChars = *(WORD *) lParam;
3258 unsigned int nCharsLeft = nMaxChars;
3259 char *dest = (char *) lParam;
3260 BOOL wroteNull = FALSE;
3261
3262 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3263 unicode ? "Unicode" : "Ansi");
3264
3265 run = ME_FindRowWithNumber(editor, wParam);
3266 if (run == NULL)
3267 return 0;
3268
3269 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3270 && !(run->member.run.nFlags & MERF_ENDPARA))
3271 {
3272 unsigned int nCopy;
3273 ME_String *strText;
3274 if (run->type != diRun)
3275 break;
3276 strText = run->member.run.strText;
3277 nCopy = min(nCharsLeft, strText->nLen);
3278
3279 if (unicode)
3280 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
3281 else
3282 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3283 nCharsLeft, NULL, NULL);
3284 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3285 nCharsLeft -= nCopy;
3286 }
3287
3288 /* append line termination, space allowing */
3289 if (nCharsLeft > 0)
3290 {
3291 if (run && (run->member.run.nFlags & MERF_ENDPARA))
3292 {
3293 unsigned int i;
3294 /* Write as many \r as encoded in end-of-paragraph, space allowing */
3295 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
3296 {
3297 *((WCHAR *)dest) = '\r';
3298 dest += unicode ? sizeof(WCHAR) : 1;
3299 }
3300 /* Write as many \n as encoded in end-of-paragraph, space allowing */
3301 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
3302 {
3303 *((WCHAR *)dest) = '\n';
3304 dest += unicode ? sizeof(WCHAR) : 1;
3305 }
3306 }
3307 if (nCharsLeft > 0)
3308 {
3309 if (unicode)
3310 *((WCHAR *)dest) = '\0';
3311 else
3312 *dest = '\0';
3313 nCharsLeft--;
3314 wroteNull = TRUE;
3315 }
3316 }
3317
3318 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3319 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3320 }
3321 case EM_GETLINECOUNT:
3322 {
3323 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3324 int nRows = 0;
3325
3326 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3327
3328 while (item != editor->pBuffer->pLast)
3329 {
3330 assert(item->type == diParagraph);
3331 prev_para = ME_FindItemBack(item, diRun);
3332 if (prev_para) {
3333 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3334 }
3335 nRows += item->member.para.nRows;
3336 item = item->member.para.next_para;
3337 }
3338 last_para = ME_FindItemBack(item, diRun);
3339 assert(last_para);
3340 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3341 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
3342 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
3343 {
3344 /* In 1.0 emulation, the last solitary \r at the very end of the text
3345 (if one exists) is NOT a line break.
3346 FIXME: this is an ugly hack. This should have a more regular model. */
3347 nRows--;
3348 }
3349
3350 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3351 return max(1, nRows);
3352 }
3353 case EM_LINEFROMCHAR:
3354 {
3355 if (wParam == -1)
3356 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
3357 else
3358 return ME_RowNumberFromCharOfs(editor, wParam);
3359 }
3360 case EM_EXLINEFROMCHAR:
3361 {
3362 if (lParam == -1)
3363 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
3364 else
3365 return ME_RowNumberFromCharOfs(editor, lParam);
3366 }
3367 case EM_LINEINDEX:
3368 {
3369 ME_DisplayItem *item, *para;
3370 int nCharOfs;
3371
3372 if (wParam == -1)
3373 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3374 else
3375 item = ME_FindRowWithNumber(editor, wParam);
3376 if (!item)
3377 return -1;
3378 para = ME_GetParagraph(item);
3379 item = ME_FindItemFwd(item, diRun);
3380 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3381 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3382 return nCharOfs;
3383 }
3384 case EM_LINELENGTH:
3385 {
3386 ME_DisplayItem *item, *item_end;
3387 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3388
3389 if (wParam > ME_GetTextLength(editor))
3390 return 0;
3391 if (wParam == -1)
3392 {
3393 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3394 return 0;
3395 }
3396 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
3397 item = ME_RowStart(item);
3398 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
3399 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3400 if (item_end->type == diStartRow)
3401 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
3402 else
3403 {
3404 ME_DisplayItem *endPara;
3405
3406 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
3407 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
3408 endPara = ME_FindItemBack(endPara, diRun);
3409 assert(endPara);
3410 assert(endPara->type == diRun);
3411 assert(endPara->member.run.nFlags & MERF_ENDPARA);
3412 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
3413 }
3414 nChars = nNextLineOfs - nThisLineOfs;
3415 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3416 return nChars;
3417 }
3418 case EM_EXLIMITTEXT:
3419 {
3420 if ((int)lParam < 0)
3421 return 0;
3422 if (lParam == 0)
3423 editor->nTextLimit = 65536;
3424 else
3425 editor->nTextLimit = (int) lParam;
3426 return 0;
3427 }
3428 case EM_LIMITTEXT:
3429 {
3430 if (wParam == 0)
3431 editor->nTextLimit = 65536;
3432 else
3433 editor->nTextLimit = (int) wParam;
3434 return 0;
3435 }
3436 case EM_GETLIMITTEXT:
3437 {
3438 return editor->nTextLimit;
3439 }
3440 case EM_FINDTEXT:
3441 {
3442 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3443 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3444 WCHAR *tmp;
3445 LRESULT r;
3446
3447 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3448 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3449 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3450 FREE_OBJ( tmp );
3451 return r;
3452 }
3453 case EM_FINDTEXTEX:
3454 {
3455 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3456 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3457 WCHAR *tmp;
3458 LRESULT r;
3459
3460 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3461 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3462 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3463 FREE_OBJ( tmp );
3464 return r;
3465 }
3466 case EM_FINDTEXTW:
3467 {
3468 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3469 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3470 }
3471 case EM_FINDTEXTEXW:
3472 {
3473 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3474 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3475 }
3476 case EM_GETZOOM:
3477 if (!wParam || !lParam)
3478 return FALSE;
3479 *(int *)wParam = editor->nZoomNumerator;
3480 *(int *)lParam = editor->nZoomDenominator;
3481 return TRUE;
3482 case EM_SETZOOM:
3483 return ME_SetZoom(editor, wParam, lParam);
3484 case EM_CHARFROMPOS:
3485 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3486 case EM_POSFROMCHAR:
3487 {
3488 ME_DisplayItem *pRun;
3489 int nCharOfs, nOffset, nLength;
3490 POINTL pt = {0,0};
3491 SCROLLINFO si;
3492
3493 nCharOfs = wParam;
3494 /* detect which API version we're dealing with */
3495 if (wParam >= 0x40000)
3496 nCharOfs = lParam;
3497 nLength = ME_GetTextLength(editor);
3498
3499 if (nCharOfs < nLength) {
3500 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
3501 assert(pRun->type == diRun);
3502 pt.y = pRun->member.run.pt.y;
3503 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3504 pt.y += ME_GetParagraph(pRun)->member.para.pt.y;
3505 } else {
3506 pt.x = 0;
3507 pt.y = editor->pBuffer->pLast->member.para.pt.y;
3508 }
3509 pt.x += editor->selofs;
3510
3511 si.cbSize = sizeof(si);
3512 si.fMask = SIF_POS;
3513 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
3514 si.cbSize = sizeof(si);
3515 si.fMask = SIF_POS;
3516 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3517
3518 if (wParam >= 0x40000) {
3519 *(POINTL *)wParam = pt;
3520 }
3521 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3522 }
3523 case WM_CREATE:
3524 {
3525 SCROLLINFO si;
3526
3527 GetClientRect(hWnd, &editor->rcFormat);
3528 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
3529 { /* Squelch the default horizontal scrollbar it would make */
3530 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3531 }
3532
3533 si.cbSize = sizeof(si);
3534 si.fMask = SIF_PAGE | SIF_RANGE;
3535 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_DISABLENOSCROLL)
3536 si.fMask |= SIF_DISABLENOSCROLL;
3537 si.nMax = (si.fMask & SIF_DISABLENOSCROLL) ? 1 : 0;
3538 si.nMin = 0;
3539 si.nPage = 0;
3540 SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
3541
3542 ME_CommitUndo(editor);
3543 ME_WrapMarkedParagraphs(editor);
3544 ME_MoveCaret(editor);
3545 return 0;
3546 }
3547 case WM_DESTROY:
3548 ME_DestroyEditor(editor);
3549 SetWindowLongPtrW(hWnd, 0, 0);
3550 return 0;
3551 case WM_SETCURSOR:
3552 {
3553 return ME_SetCursor(editor);
3554 }
3555 case WM_LBUTTONDBLCLK:
3556 case WM_LBUTTONDOWN:
3557 {
3558 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3559 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3560 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3561 return 0;
3562 SetFocus(hWnd);
3563 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3564 ME_CalculateClickCount(hWnd, msg, wParam, lParam));
3565 SetCapture(hWnd);
3566 ME_LinkNotify(editor,msg,wParam,lParam);
3567 if (!ME_SetCursor(editor)) goto do_default;
3568 break;
3569 }
3570 case WM_MOUSEMOVE:
3571 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3572 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3573 return 0;
3574 if (GetCapture() == hWnd)
3575 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3576 ME_LinkNotify(editor,msg,wParam,lParam);
3577 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3578 if (GetCapture() == hWnd)
3579 ME_SetCursor(editor);
3580 break;
3581 case WM_LBUTTONUP:
3582 if (GetCapture() == hWnd)
3583 ReleaseCapture();
3584 if (editor->nSelectionType == stDocument)
3585 editor->nSelectionType = stPosition;
3586 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3587 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3588 return 0;
3589 else
3590 {
3591 ME_SetCursor(editor);
3592 ME_LinkNotify(editor,msg,wParam,lParam);
3593 }
3594 break;
3595 case WM_RBUTTONUP:
3596 case WM_RBUTTONDOWN:
3597 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3598 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3599 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3600 return 0;
3601 goto do_default;
3602 case WM_CONTEXTMENU:
3603 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3604 goto do_default;
3605 break;
3606 case WM_PAINT:
3607 if (editor->bRedraw)
3608 {
3609 HDC hDC;
3610 PAINTSTRUCT ps;
3611
3612 hDC = BeginPaint(hWnd, &ps);
3613 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3614 EndPaint(hWnd, &ps);
3615 }
3616 break;
3617 case WM_SETFOCUS:
3618 editor->bHaveFocus = TRUE;
3619 ME_ShowCaret(editor);
3620 ME_SendOldNotify(editor, EN_SETFOCUS);
3621 return 0;
3622 case WM_KILLFOCUS:
3623 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3624 editor->bHaveFocus = FALSE;
3625 ME_HideCaret(editor);
3626 ME_SendOldNotify(editor, EN_KILLFOCUS);
3627 return 0;
3628 case WM_ERASEBKGND:
3629 {
3630 if (editor->bRedraw)
3631 {
3632 HDC hDC = (HDC)wParam;
3633 RECT rc;
3634 if (GetUpdateRect(hWnd,&rc,TRUE))
3635 {
3636 FillRect(hDC, &rc, editor->hbrBackground);
3637 }
3638 }
3639 return 1;
3640 }
3641 case WM_COMMAND:
3642 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3643 return 0;
3644 case WM_KEYUP:
3645 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3646 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3647 return 0;
3648 goto do_default;
3649 case WM_KEYDOWN:
3650 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3651 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3652 return 0;
3653 if (ME_KeyDown(editor, LOWORD(wParam)))
3654 return 0;
3655 goto do_default;
3656 case WM_CHAR:
3657 {
3658 WCHAR wstr;
3659
3660 if (unicode)
3661 wstr = (WCHAR)wParam;
3662 else
3663 {
3664 CHAR charA = wParam;
3665 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3666 }
3667
3668 switch (wstr)
3669 {
3670 case 1: /* Ctrl-A */
3671 ME_SetSelection(editor, 0, -1);
3672 return 0;
3673 case 3: /* Ctrl-C */
3674 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
3675 return 0;
3676 }
3677
3678 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3679 MessageBeep(MB_ICONERROR);
3680 return 0; /* FIXME really 0 ? */
3681 }
3682
3683 switch (wstr)
3684 {
3685 case 22: /* Ctrl-V */
3686 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
3687 return 0;
3688 case 24: /* Ctrl-X */
3689 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
3690 return 0;
3691 case 25: /* Ctrl-Y */
3692 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
3693 return 0;
3694 case 26: /* Ctrl-Z */
3695 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
3696 return 0;
3697 }
3698 if (((unsigned)wstr)>=' '
3699 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3700 || wstr=='\t') {
3701 ME_Cursor cursor = editor->pCursors[0];
3702 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
3703 int from, to;
3704 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
3705 ME_GetSelection(editor, &from, &to);
3706 if (wstr=='\t'
3707 /* v4.1 allows tabs to be inserted with ctrl key down */
3708 && !(ctrl_is_down && !editor->bEmulateVersion10)
3709 )
3710 {
3711 ME_DisplayItem *para;
3712 BOOL bSelectedRow = FALSE;
3713
3714 para = ME_GetParagraph(cursor.pRun);
3715 if (ME_IsSelection(editor) &&
3716 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
3717 to == ME_GetCursorOfs(editor, 0) &&
3718 para->member.para.prev_para->type == diParagraph)
3719 {
3720 para = para->member.para.prev_para;
3721 bSelectedRow = TRUE;
3722 }
3723 if (ME_IsInTable(para))
3724 {
3725 ME_TabPressedInTable(editor, bSelectedRow);
3726 ME_CommitUndo(editor);
3727 return 0;
3728 }
3729 } else if (!editor->bEmulateVersion10) { /* v4.1 */
3730 if (para->member.para.nFlags & MEPF_ROWEND) {
3731 if (wstr=='\r') {
3732 /* Add a new table row after this row. */
3733 para = ME_AppendTableRow(editor, para);
3734 para = para->member.para.next_para;
3735 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3736 editor->pCursors[0].nOffset = 0;
3737 editor->pCursors[1] = editor->pCursors[0];
3738 ME_CommitUndo(editor);
3739 ME_CheckTablesForCorruption(editor);
3740 ME_UpdateRepaint(editor);
3741 return 0;
3742 } else if (from == to) {
3743 para = para->member.para.next_para;
3744 if (para->member.para.nFlags & MEPF_ROWSTART)
3745 para = para->member.para.next_para;
3746 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3747 editor->pCursors[0].nOffset = 0;
3748 editor->pCursors[1] = editor->pCursors[0];
3749 }
3750 }
3751 else if (para == ME_GetParagraph(editor->pCursors[1].pRun) &&
3752 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
3753 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
3754 !para->member.para.prev_para->member.para.nCharOfs)
3755 {
3756 /* Insert a newline before the table. */
3757 WCHAR endl = '\r';
3758 para = para->member.para.prev_para;
3759 para->member.para.nFlags &= ~MEPF_ROWSTART;
3760 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3761 editor->pCursors[1] = editor->pCursors[0];
3762 ME_InsertTextFromCursor(editor, 0, &endl, 1,
3763 editor->pCursors[0].pRun->member.run.style);
3764 para = editor->pBuffer->pFirst->member.para.next_para;
3765 ME_SetDefaultParaFormat(para->member.para.pFmt);
3766 para->member.para.nFlags = MEPF_REWRAP;
3767 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3768 editor->pCursors[1] = editor->pCursors[0];
3769 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
3770 ME_CommitCoalescingUndo(editor);
3771 ME_CheckTablesForCorruption(editor);
3772 ME_UpdateRepaint(editor);
3773 return 0;
3774 }
3775 } else { /* v1.0 - 3.0 */
3776 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
3777 if (ME_IsInTable(cursor.pRun))
3778 {
3779 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
3780 {
3781 if (from == to) {
3782 if (wstr=='\r') {
3783 ME_ContinueCoalescingTransaction(editor);
3784 para = ME_AppendTableRow(editor, para);
3785 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3786 editor->pCursors[0].nOffset = 0;
3787 editor->pCursors[1] = editor->pCursors[0];
3788 ME_CommitCoalescingUndo(editor);
3789 ME_UpdateRepaint(editor);
3790 } else {
3791 /* Text should not be inserted at the end of the table. */
3792 MessageBeep(-1);
3793 }
3794 return 0;
3795 }
3796 } else if (wstr == '\r') {
3797 ME_ContinueCoalescingTransaction(editor);
3798 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
3799 !ME_IsInTable(para->member.para.prev_para))
3800 {
3801 /* Insert newline before table */
3802 WCHAR endl = '\r';
3803 cursor.pRun = ME_FindItemBack(para, diRun);
3804 if (cursor.pRun)
3805 editor->pCursors[0].pRun = cursor.pRun;
3806 editor->pCursors[0].nOffset = 0;
3807 editor->pCursors[1] = editor->pCursors[0];
3808 ME_InsertTextFromCursor(editor, 0, &endl, 1,
3809 editor->pCursors[0].pRun->member.run.style);
3810 } else {
3811 editor->pCursors[1] = editor->pCursors[0];
3812 para = ME_AppendTableRow(editor, para);
3813 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
3814 editor->pCursors[0].nOffset = 0;
3815 editor->pCursors[1] = editor->pCursors[0];
3816 }
3817 ME_CommitCoalescingUndo(editor);
3818 ME_UpdateRepaint(editor);
3819 return 0;
3820 }
3821 }
3822 }
3823 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3824 /* WM_CHAR is restricted to nTextLimit */
3825 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3826 {
3827 ME_Style *style = ME_GetInsertStyle(editor, 0);
3828 ME_SaveTempStyle(editor);
3829 ME_ContinueCoalescingTransaction(editor);
3830 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3831 ME_InsertEndRowFromCursor(editor, 0);
3832 else
3833 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3834 ME_ReleaseStyle(style);
3835 ME_CommitCoalescingUndo(editor);
3836 SetCursor(NULL);
3837 }
3838
3839 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3840
3841 ME_UpdateRepaint(editor);
3842 }
3843 return 0;
3844 }
3845 case WM_UNICHAR:
3846 if (unicode)
3847 {
3848 if(wParam == UNICODE_NOCHAR) return TRUE;
3849 if(wParam <= 0x000fffff)
3850 {
3851 if(wParam > 0xffff) /* convert to surrogates */
3852 {
3853 wParam -= 0x10000;
3854 SendMessageW(editor->hWnd, WM_CHAR, (wParam >> 10) + 0xd800, 0);
3855 SendMessageW(editor->hWnd, WM_CHAR, (wParam & 0x03ff) + 0xdc00, 0);
3856 }
3857 else SendMessageW(editor->hWnd, WM_CHAR, wParam, 0);
3858 }
3859 return 0;
3860 }
3861 break;
3862 case EM_STOPGROUPTYPING:
3863 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3864 return 0;
3865 case EM_SCROLL: /* fall through */
3866 case WM_VSCROLL:
3867 {
3868 int origNPos;
3869 int lineHeight;
3870
3871 origNPos = ME_GetYScrollPos(editor);
3872 lineHeight = 24;
3873
3874 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3875 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3876 if (lineHeight <= 0) lineHeight = 24;
3877
3878 switch(LOWORD(wParam))
3879 {
3880 case SB_LINEUP:
3881 ME_ScrollUp(editor,lineHeight);
3882 break;
3883 case SB_LINEDOWN:
3884 ME_ScrollDown(editor,lineHeight);
3885 break;
3886 case SB_PAGEUP:
3887 ME_ScrollUp(editor,editor->sizeWindow.cy);
3888 break;
3889 case SB_PAGEDOWN:
3890 ME_ScrollDown(editor,editor->sizeWindow.cy);
3891 break;
3892 case SB_THUMBTRACK:
3893 case SB_THUMBPOSITION:
3894 ME_ScrollAbs(editor,HIWORD(wParam));
3895 break;
3896 }
3897 if (msg == EM_SCROLL)
3898 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
3899 break;
3900 }
3901 case WM_MOUSEWHEEL:
3902 {
3903 int gcWheelDelta;
3904 UINT pulScrollLines;
3905
3906 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3907 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3908 return 0;
3909
3910 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
3911 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
3912
3913 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
3914 {
3915 /* FIXME follow the original */
3916 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
3917 }
3918 break;
3919 }
3920 case EM_GETRECT:
3921 {
3922 *((RECT *)lParam) = editor->rcFormat;
3923 return 0;
3924 }
3925 case EM_SETRECT:
3926 case EM_SETRECTNP:
3927 {
3928 if (lParam)
3929 {
3930 RECT *rc = (RECT *)lParam;
3931
3932 if (wParam)
3933 {
3934 editor->rcFormat.left += rc->left;
3935 editor->rcFormat.top += rc->top;
3936 editor->rcFormat.right += rc->right;
3937 editor->rcFormat.bottom += rc->bottom;
3938 }
3939 else
3940 {
3941 editor->rcFormat = *rc;
3942 }
3943 }
3944 else
3945 {
3946 GetClientRect(hWnd, &editor->rcFormat);
3947 }
3948 if (msg != EM_SETRECTNP)
3949 ME_RewrapRepaint(editor);
3950 return 0;
3951 }
3952 case EM_REQUESTRESIZE:
3953 ME_SendRequestResize(editor, TRUE);
3954 return 0;
3955 case WM_SETREDRAW:
3956 if ((editor->bRedraw = wParam))
3957 ME_RewrapRepaint(editor);
3958 return 0;
3959 case WM_SIZE:
3960 {
3961 GetClientRect(hWnd, &editor->rcFormat);
3962 ME_RewrapRepaint(editor);
3963 return DefWindowProcW(hWnd, msg, wParam, lParam);
3964 }
3965 /* IME messages to make richedit controls IME aware */
3966 case WM_IME_SETCONTEXT:
3967 case WM_IME_CONTROL:
3968 case WM_IME_SELECT:
3969 case WM_IME_COMPOSITIONFULL:
3970 return 0;
3971 case WM_IME_STARTCOMPOSITION:
3972 {
3973 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
3974 ME_DeleteSelection(editor);
3975 ME_CommitUndo(editor);
3976 ME_UpdateRepaint(editor);
3977 return 0;
3978 }
3979 case WM_IME_COMPOSITION:
3980 {
3981 HIMC hIMC;
3982
3983 ME_Style *style = ME_GetInsertStyle(editor, 0);
3984 hIMC = ImmGetContext(hWnd);
3985 ME_DeleteSelection(editor);
3986 ME_CommitUndo(editor);
3987 ME_SaveTempStyle(editor);
3988 if (lParam & GCS_RESULTSTR)
3989 {
3990 LPWSTR lpCompStr = NULL;
3991 DWORD dwBufLen;
3992
3993 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
3994 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3995 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
3996 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3997 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3998 }
3999 else if (lParam & GCS_COMPSTR)
4000 {
4001 LPWSTR lpCompStr = NULL;
4002 DWORD dwBufLen;
4003
4004 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4005 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4006 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4007 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4008
4009 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4010 ME_SetSelection(editor,editor->imeStartIndex,
4011 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4012 }
4013 ME_ReleaseStyle(style);
4014 ME_UpdateRepaint(editor);
4015 return 0;
4016 }
4017 case WM_IME_ENDCOMPOSITION:
4018 {
4019 ME_DeleteSelection(editor);
4020 editor->imeStartIndex=-1;
4021 return 0;
4022 }
4023 case EM_GETOLEINTERFACE:
4024 {
4025 LPVOID *ppvObj = (LPVOID*) lParam;
4026 return CreateIRichEditOle(editor, ppvObj);
4027 }
4028 case EM_GETPASSWORDCHAR:
4029 {
4030 return editor->cPasswordMask;
4031 }
4032 case EM_SETOLECALLBACK:
4033 if(editor->lpOleCallback)
4034 IUnknown_Release(editor->lpOleCallback);
4035 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4036 if(editor->lpOleCallback)
4037 IUnknown_AddRef(editor->lpOleCallback);
4038 return TRUE;
4039 case EM_GETWORDBREAKPROC:
4040 return (LRESULT)editor->pfnWordBreak;
4041 case EM_SETWORDBREAKPROC:
4042 {
4043 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4044
4045 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4046 return (LRESULT)pfnOld;
4047 }
4048 case EM_SETTEXTMODE:
4049 {
4050 LRESULT ret;
4051 int mask = 0;
4052 int changes = 0;
4053 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
4054 if (!ret)
4055 {
4056 /*Check for valid wParam*/
4057 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4058 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4059 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4060 return 1;
4061 else
4062 {
4063 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4064 {
4065 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4066 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4067 }
4068 /*FIXME: Currently no support for undo level and code page options*/
4069 editor->mode = (editor->mode & (~mask)) | changes;
4070 return 0;
4071 }
4072 }
4073 return ret;
4074 }
4075 case EM_SETPASSWORDCHAR:
4076 {
4077 editor->cPasswordMask = wParam;
4078 ME_RewrapRepaint(editor);
4079 return 0;
4080 }
4081 case EM_SETTARGETDEVICE:
4082 if (wParam == 0)
4083 {
4084 BOOL new = (lParam == 0);
4085 if (editor->bWordWrap != new)
4086 {
4087 editor->bWordWrap = new;
4088 ME_RewrapRepaint(editor);
4089 }
4090 }
4091 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
4092 break;
4093 default:
4094 do_default:
4095 return DefWindowProcW(hWnd, msg, wParam, lParam);
4096 }
4097 return 0L;
4098 }
4099
4100 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4101 {
4102 BOOL unicode = TRUE;
4103
4104 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4105 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4106 unicode = FALSE;
4107
4108 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4109 }
4110
4111 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4112 {
4113 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4114 }
4115
4116 /******************************************************************
4117 * RichEditANSIWndProc (RICHED20.10)
4118 */
4119 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4120 {
4121 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4122 }
4123
4124 /******************************************************************
4125 * RichEdit10ANSIWndProc (RICHED20.9)
4126 */
4127 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4128 {
4129 LRESULT result;
4130
4131 /* FIXME: this is NOT the same as 2.0 version */
4132 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4133 if (msg == WM_NCCREATE)
4134 {
4135 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4136
4137 editor->bEmulateVersion10 = TRUE;
4138 editor->pBuffer->pLast->member.para.nCharOfs = 2;
4139 assert(editor->pBuffer->pLast->prev->type == diRun);
4140 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
4141 editor->pBuffer->pLast->prev->member.run.nLF = 1;
4142 }
4143 return result;
4144 }
4145
4146 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4147 {
4148 HWND hWnd = editor->hWnd;
4149 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
4150 }
4151
4152 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
4153 {
4154 int x,y;
4155 ME_Cursor tmpCursor;
4156 BOOL isExact;
4157 int nCharOfs; /* The start of the clicked text. Absolute character offset */
4158
4159 ME_Run *tmpRun;
4160
4161 ENLINK info;
4162 x = (short)LOWORD(lParam);
4163 y = (short)HIWORD(lParam);
4164 nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
4165 if (!isExact) return;
4166
4167 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
4168 tmpRun = &tmpCursor.pRun->member.run;
4169
4170 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
4171 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
4172 { /* The clicked run has CFE_LINK set */
4173 info.nmhdr.hwndFrom = editor->hWnd;
4174 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
4175 info.nmhdr.code = EN_LINK;
4176 info.msg = msg;
4177 info.wParam = wParam;
4178 info.lParam = lParam;
4179 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
4180 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
4181 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
4182 }
4183 }
4184
4185 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
4186 {
4187 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
4188 int i = 0;
4189
4190 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
4191 item = item->member.para.next_para;
4192 if (!item)
4193 return 0;
4194 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
4195 item = item->member.para.next_para;
4196 i++;
4197 }
4198 return i;
4199 }
4200
4201
4202 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
4203 {
4204 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
4205 int nWritten = 0;
4206 WCHAR *pStart = buffer;
4207
4208 if (!item) {
4209 *buffer = 0;
4210 return 0;
4211 }
4212
4213 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4214 if (editor->bEmulateVersion10) bCRLF = 0;
4215
4216 if (nStart)
4217 {
4218 int nLen = ME_StrLen(item->member.run.strText) - nStart;
4219 if (nLen > nChars)
4220 nLen = nChars;
4221 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
4222 nChars -= nLen;
4223 nWritten += nLen;
4224 buffer += nLen;
4225 if (!nChars) {
4226 *buffer = 0;
4227 return nWritten;
4228 }
4229 nStart = 0;
4230 item = ME_FindItemFwd(item, diRun);
4231 }
4232
4233 while(nChars && item)
4234 {
4235 int nLen = ME_StrLen(item->member.run.strText);
4236 if (item->member.run.nFlags & MERF_ENDPARA)
4237 nLen = item->member.run.nCR + item->member.run.nLF;
4238 if (nLen > nChars)
4239 nLen = nChars;
4240
4241 if (item->member.run.nFlags & MERF_ENDCELL &&
4242 item->member.run.nFlags & MERF_ENDPARA)
4243 {
4244 *buffer = '\t';
4245 }
4246 else if (item->member.run.nFlags & MERF_ENDPARA)
4247 {
4248 if (!ME_FindItemFwd(item, diRun))
4249 /* No '\r' is appended to the last paragraph. */
4250 nLen = 0;
4251 else if (bCRLF && nChars == 1) {
4252 nLen = 0;
4253 nChars = 0;
4254 } else {
4255 if (bCRLF)
4256 {
4257 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
4258 if (ME_GetParagraph(item)->member.para.nFlags & (MEPF_ROWSTART|MEPF_ROWEND))
4259 assert(nLen == 2);
4260 else
4261 assert(nLen == 1);
4262 *buffer++ = '\r';
4263 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
4264 if (nLen == 1)
4265 nWritten++;
4266 else
4267 buffer--;
4268 }
4269 else
4270 {
4271 int i, j;
4272
4273 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
4274 i = 0;
4275 while (nChars - i > 0 && i < item->member.run.nCR)
4276 {
4277 buffer[i] = '\r'; i++;
4278 }
4279 j = 0;
4280 while (nChars - i - j > 0 && j < item->member.run.nLF)
4281 {
4282 buffer[i+j] = '\n'; j++;
4283 }
4284 }
4285 }
4286 }
4287 else
4288 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
4289 nChars -= nLen;
4290 nWritten += nLen;
4291 buffer += nLen;
4292
4293 if (!nChars)
4294 {
4295 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4296 *buffer = 0;
4297 return nWritten;
4298 }
4299 item = ME_FindItemFwd(item, diRun);
4300 }
4301 *buffer = 0;
4302 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4303 return nWritten;
4304 }
4305
4306 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4307 {
4308 WNDCLASSW wcW;
4309 WNDCLASSA wcA;
4310
4311 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4312 wcW.lpfnWndProc = RichEditWndProcW;
4313 wcW.cbClsExtra = 0;
4314 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4315 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4316 wcW.hIcon = NULL;
4317 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4318 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
4319 wcW.lpszMenuName = NULL;
4320
4321 if (is_version_nt())
4322 {
4323 wcW.lpszClassName = RichEdit20W;
4324 if (!RegisterClassW(&wcW)) return FALSE;
4325 wcW.lpszClassName = RichEdit50W;
4326 if (!RegisterClassW(&wcW)) return FALSE;
4327 }
4328 else
4329 {
4330 /* WNDCLASSA/W have the same layout */
4331 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4332 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4333 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4334 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4335 }
4336
4337 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4338 wcA.lpfnWndProc = RichEditWndProcA;
4339 wcA.cbClsExtra = 0;
4340 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4341 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4342 wcA.hIcon = NULL;
4343 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4344 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
4345 wcA.lpszMenuName = NULL;
4346 wcA.lpszClassName = "RichEdit20A";
4347 if (!RegisterClassA(&wcA)) return FALSE;
4348 wcA.lpszClassName = "RichEdit50A";
4349 if (!RegisterClassA(&wcA)) return FALSE;
4350
4351 return TRUE;
4352 }
4353
4354 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4355 /* FIXME: Not implemented */
4356 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4357 hWnd, msg, get_msg_name(msg), wParam, lParam);
4358 return DefWindowProcW(hWnd, msg, wParam, lParam);
4359 }
4360
4361 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4362 /* FIXME: Not implemented */
4363 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4364 hWnd, msg, get_msg_name(msg), wParam, lParam);
4365 return DefWindowProcW(hWnd, msg, wParam, lParam);
4366 }
4367
4368 /******************************************************************
4369 * REExtendedRegisterClass (RICHED20.8)
4370 *
4371 * FIXME undocumented
4372 * Need to check for errors and implement controls and callbacks
4373 */
4374 LRESULT WINAPI REExtendedRegisterClass(void)
4375 {
4376 WNDCLASSW wcW;
4377 UINT result;
4378
4379 FIXME("semi stub\n");
4380
4381 wcW.cbClsExtra = 0;
4382 wcW.cbWndExtra = 4;
4383 wcW.hInstance = NULL;
4384 wcW.hIcon = NULL;
4385 wcW.hCursor = NULL;
4386 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4387 wcW.lpszMenuName = NULL;
4388
4389 if (!ME_ListBoxRegistered)
4390 {
4391 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4392 wcW.lpfnWndProc = REListWndProc;
4393 wcW.lpszClassName = REListBox20W;
4394 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4395 }
4396
4397 if (!ME_ComboBoxRegistered)
4398 {
4399 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4400 wcW.lpfnWndProc = REComboWndProc;
4401 wcW.lpszClassName = REComboBox20W;
4402 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4403 }
4404
4405 result = 0;
4406 if (ME_ListBoxRegistered)
4407 result += 1;
4408 if (ME_ComboBoxRegistered)
4409 result += 2;
4410
4411 return result;
4412 }
4413
4414 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
4415 {
4416 struct prefix_s {
4417 const char *text;
4418 int length;
4419 } prefixes[12] = {
4420 {"http:", 5},
4421 {"file:", 6},
4422 {"mailto:", 8},
4423 {"ftp:", 5},
4424 {"https:", 7},
4425 {"gopher:", 8},
4426 {"nntp:", 6},
4427 {"prospero:", 10},
4428 {"telnet:", 8},
4429 {"news:", 6},
4430 {"wais:", 6},
4431 {"www.", 5}
4432 };
4433 CHARRANGE ins_pt;
4434 int curf_ef, link_ef, def_ef;
4435 int cur_prefx, prefx_cnt;
4436 int sel_min, sel_max;
4437 int car_pos = 0;
4438 int text_pos=-1;
4439 int URLmin, URLmax = 0;
4440 FINDTEXTA ft;
4441 CHARFORMAT2W cur_format;
4442 CHARFORMAT2W default_format;
4443 CHARFORMAT2W link;
4444 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
4445 sel_min = ins_pt.cpMin;
4446 sel_max = ins_pt.cpMax;
4447 if (sel_min==sel_max)
4448 car_pos = sel_min;
4449 if (sel_min!=sel_max)
4450 car_pos = ME_GetTextLength(editor)+1;
4451 cur_format.cbSize = sizeof(cur_format);
4452 default_format.cbSize = sizeof(default_format);
4453 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
4454 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
4455 link.cbSize = sizeof(link);
4456 link.dwMask = CFM_LINK;
4457 link.dwEffects = CFE_LINK;
4458 curf_ef = cur_format.dwEffects & link.dwEffects;
4459 def_ef = default_format.dwEffects & link.dwEffects;
4460 link_ef = link.dwEffects & link.dwEffects;
4461 if (curf_ef == link_ef)
4462 {
4463 if( curChar == '\n' || curChar=='\r' || curChar==' ')
4464 {
4465 ME_SetSelection(editor, car_pos, car_pos);
4466 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
4467 text_pos=-1;
4468 return 0;
4469 }
4470 }
4471 if (curf_ef == def_ef)
4472 {
4473 cur_prefx = 0;
4474 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
4475 while (cur_prefx<=prefx_cnt)
4476 {
4477 if (text_pos == -1)
4478 {
4479 ft.lpstrText = prefixes[cur_prefx].text;
4480 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
4481 URLmax=max(0, car_pos);
4482 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
4483 {
4484 URLmax = ME_GetTextLength(editor)+1;
4485 }
4486 ft.chrg.cpMin = URLmin;
4487 ft.chrg.cpMax = URLmax;
4488 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
4489 cur_prefx++;
4490 }
4491 if (text_pos != -1)
4492 {
4493 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
4494 ME_RewrapRepaint(editor);
4495 break;
4496 }
4497 }
4498 }
4499 return 0;
4500 }
4501
4502
4503 static BOOL isurlspecial(WCHAR c)
4504 {
4505 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4506 return strchrW( special_chars, c ) != NULL;
4507 }
4508
4509 /**
4510 * This proc takes a selection, and scans it forward in order to select the span
4511 * of a possible URL candidate. A possible URL candidate must start with isalnum
4512 * or one of the following special characters: *|/\+%#@ and must consist entirely
4513 * of the characters allowed to start the URL, plus : (colon) which may occur
4514 * at most once, and not at either end.
4515 *
4516 * sel_max == -1 indicates scan to end of text.
4517 */
4518 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
4519 int * candidate_min, int * candidate_max)
4520 {
4521 ME_DisplayItem * item;
4522 ME_DisplayItem * para;
4523 int nStart;
4524 BOOL foundColon = FALSE;
4525 WCHAR lastAcceptedChar = '\0';
4526
4527 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
4528
4529 *candidate_min = *candidate_max = -1;
4530 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
4531 if (!item) return FALSE;
4532 TRACE("nStart = %d\n", nStart);
4533 para = ME_GetParagraph(item);
4534 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4535 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
4536 {
4537 ME_DisplayItem * next_item;
4538
4539 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
4540 /* Find start of candidate */
4541 if (*candidate_min == -1) {
4542 while (nStart < ME_StrLen(item->member.run.strText) &&
4543 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4544 isurlspecial(item->member.run.strText->szData[nStart]))) {
4545 nStart++;
4546 }
4547 if (nStart < ME_StrLen(item->member.run.strText) &&
4548 (isalnumW(item->member.run.strText->szData[nStart]) ||
4549 isurlspecial(item->member.run.strText->szData[nStart]))) {
4550 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4551 lastAcceptedChar = item->member.run.strText->szData[nStart];
4552 nStart++;
4553 }
4554 }
4555
4556 /* Find end of candidate */
4557 if (*candidate_min >= 0) {
4558 while (nStart < ME_StrLen(item->member.run.strText) &&
4559 (isalnumW(item->member.run.strText->szData[nStart]) ||
4560 isurlspecial(item->member.run.strText->szData[nStart]) ||
4561 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
4562 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
4563 lastAcceptedChar = item->member.run.strText->szData[nStart];
4564 nStart++;
4565 }
4566 if (nStart < ME_StrLen(item->member.run.strText) &&
4567 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4568 isurlspecial(item->member.run.strText->szData[nStart]) )) {
4569 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4570 nStart++;
4571 if (lastAcceptedChar == ':') (*candidate_max)--;
4572 return TRUE;
4573 }
4574 }
4575 } else {
4576 /* End of paragraph: skip it if before candidate span, or terminates
4577 current active span */
4578 if (*candidate_min >= 0) {
4579 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
4580 if (lastAcceptedChar == ':') (*candidate_max)--;
4581 return TRUE;
4582 }
4583 }
4584
4585 /* Reaching this point means no span was found, so get next span */
4586 next_item = ME_FindItemFwd(item, diRun);
4587 if (!next_item) {
4588 if (*candidate_min >= 0) {
4589 /* There are no further runs, so take end of text as end of candidate */
4590 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4591 if (lastAcceptedChar == ':') (*candidate_max)--;
4592 return TRUE;
4593 }
4594 }
4595 item = next_item;
4596 para = ME_GetParagraph(item);
4597 nStart = 0;
4598 }
4599
4600 if (item) {
4601 if (*candidate_min >= 0) {
4602 /* There are no further runs, so take end of text as end of candidate */
4603 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4604 if (lastAcceptedChar == ':') (*candidate_max)--;
4605 return TRUE;
4606 }
4607 }
4608 return FALSE;
4609 }
4610
4611 /**
4612 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4613 */
4614 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
4615 {
4616 struct prefix_s {
4617 const char *text;
4618 int length;
4619 } prefixes[12] = {
4620 /* Code below depends on these being in decreasing length order! */
4621 {"prospero:", 10},
4622 {"telnet:", 8},
4623 {"gopher:", 8},
4624 {"mailto:", 8},
4625 {"https:", 7},
4626 {"file:", 6},
4627 {"news:", 6},
4628 {"wais:", 6},
4629 {"nntp:", 6},
4630 {"http:", 5},
4631 {"www.", 5},
4632 {"ftp:", 5},
4633 };
4634 LPWSTR bufferW = NULL;
4635 WCHAR bufW[32];
4636 int i;
4637
4638 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4639 assert(sel_min <= sel_max);
4640 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
4641 {
4642 if (sel_max - sel_min < prefixes[i].length) continue;
4643 if (bufferW == NULL) {
4644 bufferW = (LPWSTR)heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
4645 }
4646 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, strlen(prefixes[i].text)), 0);
4647 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
4648 if (!lstrcmpW(bufW, bufferW))
4649 {
4650 heap_free(bufferW);
4651 return TRUE;
4652 }
4653 }
4654 heap_free(bufferW);
4655 return FALSE;
4656 }
4657
4658 /**
4659 * This proc walks through the indicated selection and evaluates whether each
4660 * section identified by ME_FindNextURLCandidate and in-between sections have
4661 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4662 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4663 *
4664 * Returns TRUE if at least one section was modified.
4665 */
4666 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
4667 {
4668 BOOL modified = FALSE;
4669 int cMin, cMax;
4670
4671 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4672 do
4673 {
4674 int beforeURL[2];
4675 int inURL[2];
4676 CHARFORMAT2W link;
4677
4678 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4679 {
4680 /* Section before candidate is not an URL */
4681 beforeURL[0] = sel_min;
4682 beforeURL[1] = cMin;
4683
4684 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4685 {
4686 inURL[0] = cMin; inURL[1] = cMax;
4687 }
4688 else
4689 {
4690 beforeURL[1] = cMax;
4691 inURL[0] = inURL[1] = -1;
4692 }
4693 sel_min = cMax;
4694 }
4695 else
4696 {
4697 /* No more candidates until end of selection */
4698 beforeURL[0] = sel_min;
4699 beforeURL[1] = sel_max;
4700 inURL[0] = inURL[1] = -1;
4701 sel_min = sel_max;
4702 }
4703
4704 if (beforeURL[0] < beforeURL[1])
4705 {
4706 /* CFE_LINK effect should be consistently unset */
4707 link.cbSize = sizeof(link);
4708 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4709 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4710 {
4711 /* CFE_LINK must be unset from this range */
4712 memset(&link, 0, sizeof(CHARFORMAT2W));
4713 link.cbSize = sizeof(link);
4714 link.dwMask = CFM_LINK;
4715 link.dwEffects = 0;
4716 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4717 modified = TRUE;
4718 }
4719 }
4720 if (inURL[0] < inURL[1])
4721 {
4722 /* CFE_LINK effect should be consistently set */
4723 link.cbSize = sizeof(link);
4724 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4725 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4726 {
4727 /* CFE_LINK must be set on this range */
4728 memset(&link, 0, sizeof(CHARFORMAT2W));
4729 link.cbSize = sizeof(link);
4730 link.dwMask = CFM_LINK;
4731 link.dwEffects = CFE_LINK;
4732 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4733 modified = TRUE;
4734 }
4735 }
4736 } while (sel_min < sel_max);
4737 return modified;
4738 }
4739
4740 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4741 {
4742 ME_DisplayItem * startPara, * endPara;
4743 ME_DisplayItem * item;
4744 int dummy;
4745 int from, to;
4746
4747 ME_GetSelection(editor, &from, &to);
4748 if (from > to) from ^= to, to ^=from, from ^= to;
4749 startPara = NULL; endPara = NULL;
4750
4751 /* Find paragraph previous to the one that contains start cursor */
4752 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4753 if (item) {
4754 startPara = ME_FindItemBack(item, diParagraph);
4755 item = ME_FindItemBack(startPara, diParagraph);
4756 if (item) startPara = item;
4757 }
4758
4759 /* Find paragraph that contains end cursor */
4760 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4761 if (item) {
4762 endPara = ME_FindItemFwd(item, diParagraph);
4763 }
4764
4765 if (startPara && endPara) {
4766 ME_UpdateLinkAttribute(editor,
4767 startPara->member.para.nCharOfs,
4768 endPara->member.para.nCharOfs);
4769 } else if (startPara) {
4770 ME_UpdateLinkAttribute(editor,
4771 startPara->member.para.nCharOfs,
4772 -1);
4773 }
4774 }
useful hacks and other patches not (yet) suitable for mainline