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msxml3: Orphan a node removed with removeChild().
[wine/multimedia.git] / dlls / riched20 / editor.c
blob3c409e49b8933ad0c488db9677dbb3a7d5111a86
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
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 + EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 - EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 - EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_SETIMESTATUS
103 - EM_SETLANGOPTIONS 2.0
104 - EM_SETLIMITTEXT
105 - EM_SETMARGINS
106 + EM_SETMODIFY (not sure if implementation is correct)
107 - EM_SETOLECALLBACK
108 + EM_SETOPTIONS (partially implemented)
109 - EM_SETPALETTE 2.0
110 + EM_SETPARAFORMAT
111 + EM_SETPASSWORDCHAR 2.0
112 - EM_SETPUNCTUATION 1.0asian
113 + EM_SETREADONLY no beep on modification attempt
114 + EM_SETRECT
115 + EM_SETRECTNP (EM_SETRECT without repainting)
116 + EM_SETSEL
117 + EM_SETSCROLLPOS 3.0
118 - EM_SETTABSTOPS 3.0
119 - EM_SETTARGETDEVICE (partial)
120 + EM_SETTEXTEX 3.0 (proper style?)
121 - EM_SETTEXTMODE 2.0
122 - EM_SETTYPOGRAPHYOPTIONS 3.0
123 + EM_SETUNDOLIMIT 2.0
124 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
125 - EM_SETWORDBREAKPROCEX
126 - EM_SETWORDWRAPMODE 1.0asian
127 + EM_SETZOOM 3.0
128 + EM_SHOWSCROLLBAR 2.0
129 + EM_STOPGROUPTYPING 2.0
130 + EM_STREAMIN
131 + EM_STREAMOUT
132 + EM_UNDO
133 + WM_CHAR
134 + WM_CLEAR
135 + WM_COPY
136 + WM_CUT
137 + WM_GETDLGCODE (the current implementation is incomplete)
138 + WM_GETTEXT (ANSI&Unicode)
139 + WM_GETTEXTLENGTH (ANSI version sucks)
140 + WM_HSCROLL
141 + WM_PASTE
142 + WM_SETFONT
143 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
144 + WM_STYLECHANGING (seems to do nothing)
145 + WM_STYLECHANGED (seems to do nothing)
146 + WM_UNICHAR
147 + WM_VSCROLL
148
149 Notifications
150
151 * EN_CHANGE (sent from the wrong place)
152 - EN_CORRECTTEXT
153 - EN_DROPFILES
154 - EN_ERRSPACE
155 - EN_HSCROLL
156 - EN_IMECHANGE
157 + EN_KILLFOCUS
158 - EN_LINK
159 - EN_MAXTEXT
160 - EN_MSGFILTER
161 - EN_OLEOPFAILED
162 - EN_PROTECTED
163 + EN_REQUESTRESIZE
164 - EN_SAVECLIPBOARD
165 + EN_SELCHANGE
166 + EN_SETFOCUS
167 - EN_STOPNOUNDO
168 * EN_UPDATE (sent from the wrong place)
169 - EN_VSCROLL
170
171 Styles
172
173 - ES_AUTOHSCROLL
174 - ES_AUTOVSCROLL
175 - ES_CENTER
176 + ES_DISABLENOSCROLL (scrollbar is always visible)
177 - ES_EX_NOCALLOLEINIT
178 - ES_LEFT
179 - ES_MULTILINE (currently single line controls aren't supported)
180 - ES_NOIME
181 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
182 - ES_RIGHT
183 - ES_SAVESEL
184 - ES_SELFIME
185 - ES_SUNKEN
186 - ES_VERTICAL
187 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
188 - WS_SETFONT
189 + WS_HSCROLL
190 + WS_VSCROLL
191 */
192
193 /*
194 * RICHED20 TODO (incomplete):
195 *
196 * - messages/styles/notifications listed above
197 * - add remaining CHARFORMAT/PARAFORMAT fields
198 * - right/center align should strip spaces from the beginning
199 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
200 * - COM interface (looks like a major pain in the TODO list)
201 * - calculate heights of pictures (half-done)
202 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
203 * - find/replace
204 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
205 * - italic caret with italic fonts
206 * - IME
207 * - most notifications aren't sent at all (the most important ones are)
208 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
209 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
210 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
211 * - full justification
212 * - hyphenation
213 * - tables
214 * - ListBox & ComboBox not implemented
215 *
216 * Bugs that are probably fixed, but not so easy to verify:
217 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
218 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
219 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
220 * - caret shouldn't be displayed when selection isn't empty
221 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
222 * - undo for setting default format (done, might be buggy)
223 * - styles might be not released properly (looks like they work like charm, but who knows?
224 *
225 */
226
227 #include "editor.h"
228 #include "commdlg.h"
229 #include "winreg.h"
230 #define NO_SHLWAPI_STREAM
231 #include "shlwapi.h"
232 #include "rtf.h"
233 #include "imm.h"
234 #include "res.h"
235
236 #define STACK_SIZE_DEFAULT 100
237 #define STACK_SIZE_MAX 1000
238
239 #define TEXT_LIMIT_DEFAULT 32767
240
241 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
242
243 static BOOL ME_RegisterEditorClass(HINSTANCE);
244 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
245
246 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
247 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
248 static HCURSOR hLeft;
249
250 int me_debug = 0;
251 HANDLE me_heap = NULL;
252
253 static BOOL ME_ListBoxRegistered = FALSE;
254 static BOOL ME_ComboBoxRegistered = FALSE;
255
256 static inline int is_version_nt(void)
257 {
258 return !(GetVersion() & 0x80000000);
259 }
260
261 static ME_TextBuffer *ME_MakeText(void) {
262
263 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
264
265 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
266 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
267
268 p1->prev = NULL;
269 p1->next = p2;
270 p2->prev = p1;
271 p2->next = NULL;
272 p1->member.para.next_para = p2;
273 p2->member.para.prev_para = p1;
274 p2->member.para.nCharOfs = 0;
275
276 buf->pFirst = p1;
277 buf->pLast = p2;
278 buf->pCharStyle = NULL;
279
280 return buf;
281 }
282
283
284 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
285 {
286 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
287 WCHAR *pText;
288
289 TRACE("%08x %p\n", dwFormat, stream);
290
291 do {
292 LONG nWideChars = 0;
293
294 if (!stream->dwSize)
295 {
296 ME_StreamInFill(stream);
297 if (stream->editstream->dwError)
298 break;
299 if (!stream->dwSize)
300 break;
301 }
302
303 if (!(dwFormat & SF_UNICODE))
304 {
305 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
306 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
307 pText = wszText;
308 }
309 else
310 {
311 nWideChars = stream->dwSize >> 1;
312 pText = (WCHAR *)stream->buffer;
313 }
314
315 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
316 if (stream->dwSize == 0)
317 break;
318 stream->dwSize = 0;
319 } while(1);
320 return 0;
321 }
322
323 static void ME_ApplyBorderProperties(RTF_Info *info,
324 ME_BorderRect *borderRect,
325 RTFBorder *borderDef)
326 {
327 int i, colorNum;
328 ME_Border *pBorders[] = {&borderRect->top,
329 &borderRect->left,
330 &borderRect->bottom,
331 &borderRect->right};
332 for (i = 0; i < 4; i++)
333 {
334 RTFColor *colorDef = info->colorList;
335 pBorders[i]->width = borderDef[i].width;
336 colorNum = borderDef[i].color;
337 while (colorDef && colorDef->rtfCNum != colorNum)
338 colorDef = colorDef->rtfNextColor;
339 if (colorDef)
340 pBorders[i]->colorRef = RGB(
341 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
342 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
343 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
344 else
345 pBorders[i]->colorRef = RGB(0, 0, 0);
346 }
347 }
348
349 void ME_RTFCharAttrHook(RTF_Info *info)
350 {
351 CHARFORMAT2W fmt;
352 fmt.cbSize = sizeof(fmt);
353 fmt.dwMask = 0;
354 fmt.dwEffects = 0;
355
356 switch(info->rtfMinor)
357 {
358 case rtfPlain:
359 /* FIXME add more flags once they're implemented */
360 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
361 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
362 fmt.yHeight = 12*20; /* 12pt */
363 fmt.wWeight = FW_NORMAL;
364 fmt.bUnderlineType = CFU_UNDERLINENONE;
365 break;
366 case rtfBold:
367 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
368 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
369 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
370 break;
371 case rtfItalic:
372 fmt.dwMask = CFM_ITALIC;
373 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
374 break;
375 case rtfUnderline:
376 fmt.dwMask = CFM_UNDERLINETYPE;
377 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
378 break;
379 case rtfDotUnderline:
380 fmt.dwMask = CFM_UNDERLINETYPE;
381 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
382 break;
383 case rtfDbUnderline:
384 fmt.dwMask = CFM_UNDERLINETYPE;
385 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
386 break;
387 case rtfWordUnderline:
388 fmt.dwMask = CFM_UNDERLINETYPE;
389 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
390 break;
391 case rtfNoUnderline:
392 fmt.dwMask = CFM_UNDERLINETYPE;
393 fmt.bUnderlineType = CFU_UNDERLINENONE;
394 break;
395 case rtfStrikeThru:
396 fmt.dwMask = CFM_STRIKEOUT;
397 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
398 break;
399 case rtfSubScript:
400 case rtfSuperScript:
401 case rtfSubScrShrink:
402 case rtfSuperScrShrink:
403 case rtfNoSuperSub:
404 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
405 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
406 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
407 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
408 break;
409 case rtfInvisible:
410 fmt.dwMask = CFM_HIDDEN;
411 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
412 break;
413 case rtfBackColor:
414 fmt.dwMask = CFM_BACKCOLOR;
415 fmt.dwEffects = 0;
416 if (info->rtfParam == 0)
417 fmt.dwEffects = CFE_AUTOBACKCOLOR;
418 else if (info->rtfParam != rtfNoParam)
419 {
420 RTFColor *c = RTFGetColor(info, info->rtfParam);
421 if (c && c->rtfCBlue >= 0)
422 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
423 else
424 fmt.dwEffects = CFE_AUTOBACKCOLOR;
425 }
426 break;
427 case rtfForeColor:
428 fmt.dwMask = CFM_COLOR;
429 fmt.dwEffects = 0;
430 if (info->rtfParam == 0)
431 fmt.dwEffects = CFE_AUTOCOLOR;
432 else if (info->rtfParam != rtfNoParam)
433 {
434 RTFColor *c = RTFGetColor(info, info->rtfParam);
435 if (c && c->rtfCBlue >= 0)
436 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
437 else {
438 fmt.dwEffects = CFE_AUTOCOLOR;
439 }
440 }
441 break;
442 case rtfFontNum:
443 if (info->rtfParam != rtfNoParam)
444 {
445 RTFFont *f = RTFGetFont(info, info->rtfParam);
446 if (f)
447 {
448 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
449 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
450 fmt.bCharSet = f->rtfFCharSet;
451 fmt.dwMask = CFM_FACE | CFM_CHARSET;
452 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
453 }
454 }
455 break;
456 case rtfFontSize:
457 fmt.dwMask = CFM_SIZE;
458 if (info->rtfParam != rtfNoParam)
459 fmt.yHeight = info->rtfParam*10;
460 break;
461 }
462 if (fmt.dwMask) {
463 ME_Style *style2;
464 RTFFlushOutputBuffer(info);
465 /* FIXME too slow ? how come ? */
466 style2 = ME_ApplyStyle(info->style, &fmt);
467 ME_ReleaseStyle(info->style);
468 info->style = style2;
469 info->styleChanged = TRUE;
470 }
471 }
472
473 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
474 the same tags mean different things in different contexts */
475 void ME_RTFParAttrHook(RTF_Info *info)
476 {
477 PARAFORMAT2 fmt;
478 fmt.cbSize = sizeof(fmt);
479 fmt.dwMask = 0;
480
481 switch(info->rtfMinor)
482 {
483 case rtfParDef: /* restores default paragraph attributes */
484 if (!info->editor->bEmulateVersion10) /* v4.1 */
485 info->borderType = RTFBorderParaLeft;
486 else /* v1.0 - 3.0 */
487 info->borderType = RTFBorderParaTop;
488 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
489 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
490 PFM_STARTINDENT;
491 /* TODO: numbering, shading */
492 fmt.wAlignment = PFA_LEFT;
493 fmt.cTabCount = 0;
494 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
495 fmt.wBorderWidth = fmt.wBorders = 0;
496 fmt.wBorderSpace = 0;
497 fmt.bLineSpacingRule = 0;
498 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
499 fmt.dyLineSpacing = 0;
500 if (!info->editor->bEmulateVersion10) /* v4.1 */
501 {
502 if (info->tableDef && info->tableDef->tableRowStart &&
503 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
504 {
505 ME_Cursor cursor;
506 ME_DisplayItem *para;
507 /* We are just after a table row. */
508 RTFFlushOutputBuffer(info);
509 cursor = info->editor->pCursors[0];
510 para = cursor.pPara;
511 if (para == info->tableDef->tableRowStart->member.para.next_para
512 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
513 {
514 /* Since the table row end, no text has been inserted, and the \intbl
515 * control word has not be used. We can confirm that we are not in a
516 * table anymore.
517 */
518 info->tableDef->tableRowStart = NULL;
519 info->canInheritInTbl = FALSE;
520 }
521 }
522 } else { /* v1.0 - v3.0 */
523 fmt.dwMask |= PFM_TABLE;
524 fmt.wEffects &= ~PFE_TABLE;
525 }
526 break;
527 case rtfNestLevel:
528 if (!info->editor->bEmulateVersion10) /* v4.1 */
529 {
530 while (info->rtfParam > info->nestingLevel) {
531 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
532 ZeroMemory(tableDef, sizeof(RTFTable));
533 tableDef->parent = info->tableDef;
534 info->tableDef = tableDef;
535
536 RTFFlushOutputBuffer(info);
537 if (tableDef->tableRowStart &&
538 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
539 {
540 ME_DisplayItem *para = tableDef->tableRowStart;
541 para = para->member.para.next_para;
542 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
543 tableDef->tableRowStart = para;
544 } else {
545 ME_Cursor cursor;
546 WCHAR endl = '\r';
547 cursor = info->editor->pCursors[0];
548 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
549 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
550 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
551 }
552
553 info->nestingLevel++;
554 }
555 info->canInheritInTbl = FALSE;
556 }
557 break;
558 case rtfInTable:
559 {
560 if (!info->editor->bEmulateVersion10) /* v4.1 */
561 {
562 if (info->nestingLevel < 1)
563 {
564 RTFTable *tableDef;
565 if (!info->tableDef)
566 {
567 info->tableDef = ALLOC_OBJ(RTFTable);
568 ZeroMemory(info->tableDef, sizeof(RTFTable));
569 }
570 tableDef = info->tableDef;
571 RTFFlushOutputBuffer(info);
572 if (tableDef->tableRowStart &&
573 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
574 {
575 ME_DisplayItem *para = tableDef->tableRowStart;
576 para = para->member.para.next_para;
577 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
578 tableDef->tableRowStart = para;
579 } else {
580 ME_Cursor cursor;
581 WCHAR endl = '\r';
582 cursor = info->editor->pCursors[0];
583 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
584 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
585 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
586 }
587 info->nestingLevel = 1;
588 info->canInheritInTbl = TRUE;
589 }
590 return;
591 } else { /* v1.0 - v3.0 */
592 fmt.dwMask |= PFM_TABLE;
593 fmt.wEffects |= PFE_TABLE;
594 }
595 break;
596 }
597 case rtfFirstIndent:
598 ME_GetSelectionParaFormat(info->editor, &fmt);
599 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
600 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
601 fmt.dxOffset = -info->rtfParam;
602 break;
603 case rtfLeftIndent:
604 ME_GetSelectionParaFormat(info->editor, &fmt);
605 fmt.dwMask = PFM_STARTINDENT;
606 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
607 break;
608 case rtfRightIndent:
609 fmt.dwMask = PFM_RIGHTINDENT;
610 fmt.dxRightIndent = info->rtfParam;
611 break;
612 case rtfQuadLeft:
613 case rtfQuadJust:
614 fmt.dwMask = PFM_ALIGNMENT;
615 fmt.wAlignment = PFA_LEFT;
616 break;
617 case rtfQuadRight:
618 fmt.dwMask = PFM_ALIGNMENT;
619 fmt.wAlignment = PFA_RIGHT;
620 break;
621 case rtfQuadCenter:
622 fmt.dwMask = PFM_ALIGNMENT;
623 fmt.wAlignment = PFA_CENTER;
624 break;
625 case rtfTabPos:
626 ME_GetSelectionParaFormat(info->editor, &fmt);
627 if (!(fmt.dwMask & PFM_TABSTOPS))
628 {
629 fmt.cTabCount = 0;
630 }
631 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
632 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
633 fmt.dwMask = PFM_TABSTOPS;
634 break;
635 case rtfKeep:
636 fmt.dwMask = PFM_KEEP;
637 fmt.wEffects = PFE_KEEP;
638 break;
639 case rtfNoWidowControl:
640 fmt.dwMask = PFM_NOWIDOWCONTROL;
641 fmt.wEffects = PFE_NOWIDOWCONTROL;
642 break;
643 case rtfKeepNext:
644 fmt.dwMask = PFM_KEEPNEXT;
645 fmt.wEffects = PFE_KEEPNEXT;
646 break;
647 case rtfSpaceAfter:
648 fmt.dwMask = PFM_SPACEAFTER;
649 fmt.dySpaceAfter = info->rtfParam;
650 break;
651 case rtfSpaceBefore:
652 fmt.dwMask = PFM_SPACEBEFORE;
653 fmt.dySpaceBefore = info->rtfParam;
654 break;
655 case rtfSpaceBetween:
656 fmt.dwMask = PFM_LINESPACING;
657 if ((int)info->rtfParam > 0)
658 {
659 fmt.dyLineSpacing = info->rtfParam;
660 fmt.bLineSpacingRule = 3;
661 }
662 else
663 {
664 fmt.dyLineSpacing = info->rtfParam;
665 fmt.bLineSpacingRule = 4;
666 }
667 break;
668 case rtfSpaceMultiply:
669 fmt.dwMask = PFM_LINESPACING;
670 fmt.dyLineSpacing = info->rtfParam * 20;
671 fmt.bLineSpacingRule = 5;
672 break;
673 case rtfParBullet:
674 fmt.dwMask = PFM_NUMBERING;
675 fmt.wNumbering = PFN_BULLET;
676 break;
677 case rtfParSimple:
678 fmt.dwMask = PFM_NUMBERING;
679 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
680 break;
681 case rtfParNumDecimal:
682 fmt.dwMask = PFM_NUMBERING;
683 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
684 break;
685 case rtfParNumIndent:
686 fmt.dwMask = PFM_NUMBERINGTAB;
687 fmt.wNumberingTab = info->rtfParam;
688 break;
689 case rtfParNumStartAt:
690 fmt.dwMask = PFM_NUMBERINGSTART;
691 fmt.wNumberingStart = info->rtfParam;
692 break;
693 case rtfBorderLeft:
694 info->borderType = RTFBorderParaLeft;
695 ME_GetSelectionParaFormat(info->editor, &fmt);
696 if (!(fmt.dwMask & PFM_BORDER))
697 {
698 fmt.wBorderSpace = 0;
699 fmt.wBorderWidth = 1;
700 fmt.wBorders = 0;
701 }
702 fmt.wBorders |= 1;
703 fmt.dwMask = PFM_BORDER;
704 break;
705 case rtfBorderRight:
706 info->borderType = RTFBorderParaRight;
707 ME_GetSelectionParaFormat(info->editor, &fmt);
708 if (!(fmt.dwMask & PFM_BORDER))
709 {
710 fmt.wBorderSpace = 0;
711 fmt.wBorderWidth = 1;
712 fmt.wBorders = 0;
713 }
714 fmt.wBorders |= 2;
715 fmt.dwMask = PFM_BORDER;
716 break;
717 case rtfBorderTop:
718 info->borderType = RTFBorderParaTop;
719 ME_GetSelectionParaFormat(info->editor, &fmt);
720 if (!(fmt.dwMask & PFM_BORDER))
721 {
722 fmt.wBorderSpace = 0;
723 fmt.wBorderWidth = 1;
724 fmt.wBorders = 0;
725 }
726 fmt.wBorders |= 4;
727 fmt.dwMask = PFM_BORDER;
728 break;
729 case rtfBorderBottom:
730 info->borderType = RTFBorderParaBottom;
731 ME_GetSelectionParaFormat(info->editor, &fmt);
732 if (!(fmt.dwMask & PFM_BORDER))
733 {
734 fmt.wBorderSpace = 0;
735 fmt.wBorderWidth = 1;
736 fmt.wBorders = 0;
737 }
738 fmt.wBorders |= 8;
739 fmt.dwMask = PFM_BORDER;
740 break;
741 case rtfBorderSingle:
742 ME_GetSelectionParaFormat(info->editor, &fmt);
743 /* we assume that borders have been created before (RTF spec) */
744 fmt.wBorders &= ~0x700;
745 fmt.wBorders |= 1 << 8;
746 fmt.dwMask = PFM_BORDER;
747 break;
748 case rtfBorderThick:
749 ME_GetSelectionParaFormat(info->editor, &fmt);
750 /* we assume that borders have been created before (RTF spec) */
751 fmt.wBorders &= ~0x700;
752 fmt.wBorders |= 2 << 8;
753 fmt.dwMask = PFM_BORDER;
754 break;
755 case rtfBorderShadow:
756 ME_GetSelectionParaFormat(info->editor, &fmt);
757 /* we assume that borders have been created before (RTF spec) */
758 fmt.wBorders &= ~0x700;
759 fmt.wBorders |= 10 << 8;
760 fmt.dwMask = PFM_BORDER;
761 break;
762 case rtfBorderDouble:
763 ME_GetSelectionParaFormat(info->editor, &fmt);
764 /* we assume that borders have been created before (RTF spec) */
765 fmt.wBorders &= ~0x700;
766 fmt.wBorders |= 7 << 8;
767 fmt.dwMask = PFM_BORDER;
768 break;
769 case rtfBorderDot:
770 ME_GetSelectionParaFormat(info->editor, &fmt);
771 /* we assume that borders have been created before (RTF spec) */
772 fmt.wBorders &= ~0x700;
773 fmt.wBorders |= 11 << 8;
774 fmt.dwMask = PFM_BORDER;
775 break;
776 case rtfBorderWidth:
777 {
778 int borderSide = info->borderType & RTFBorderSideMask;
779 RTFTable *tableDef = info->tableDef;
780 ME_GetSelectionParaFormat(info->editor, &fmt);
781 /* we assume that borders have been created before (RTF spec) */
782 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
783 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
784 {
785 RTFBorder *border;
786 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
787 break;
788 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
789 border->width = info->rtfParam;
790 break;
791 }
792 fmt.dwMask = PFM_BORDER;
793 break;
794 }
795 case rtfBorderSpace:
796 ME_GetSelectionParaFormat(info->editor, &fmt);
797 /* we assume that borders have been created before (RTF spec) */
798 fmt.wBorderSpace = info->rtfParam;
799 fmt.dwMask = PFM_BORDER;
800 break;
801 case rtfBorderColor:
802 {
803 RTFTable *tableDef = info->tableDef;
804 int borderSide = info->borderType & RTFBorderSideMask;
805 int borderType = info->borderType & RTFBorderTypeMask;
806 switch(borderType)
807 {
808 case RTFBorderTypePara:
809 if (!info->editor->bEmulateVersion10) /* v4.1 */
810 break;
811 /* v1.0 - 3.0 treat paragraph and row borders the same. */
812 case RTFBorderTypeRow:
813 if (tableDef) {
814 tableDef->border[borderSide].color = info->rtfParam;
815 }
816 break;
817 case RTFBorderTypeCell:
818 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
819 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
820 }
821 break;
822 }
823 break;
824 }
825 }
826 if (fmt.dwMask) {
827 RTFFlushOutputBuffer(info);
828 /* FIXME too slow ? how come ?*/
829 ME_SetSelectionParaFormat(info->editor, &fmt);
830 }
831 }
832
833 void ME_RTFTblAttrHook(RTF_Info *info)
834 {
835 switch (info->rtfMinor)
836 {
837 case rtfRowDef:
838 {
839 if (!info->editor->bEmulateVersion10) /* v4.1 */
840 info->borderType = 0; /* Not sure */
841 else /* v1.0 - 3.0 */
842 info->borderType = RTFBorderRowTop;
843 if (!info->tableDef) {
844 info->tableDef = ME_MakeTableDef(info->editor);
845 } else {
846 ME_InitTableDef(info->editor, info->tableDef);
847 }
848 break;
849 }
850 case rtfCellPos:
851 {
852 int cellNum;
853 if (!info->tableDef)
854 {
855 info->tableDef = ME_MakeTableDef(info->editor);
856 }
857 cellNum = info->tableDef->numCellsDefined;
858 if (cellNum >= MAX_TABLE_CELLS)
859 break;
860 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
861 if (cellNum < MAX_TAB_STOPS) {
862 /* Tab stops were used to store cell positions before v4.1 but v4.1
863 * still seems to set the tabstops without using them. */
864 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
865 PARAFORMAT2 *pFmt = para->member.para.pFmt;
866 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
867 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
868 }
869 info->tableDef->numCellsDefined++;
870 break;
871 }
872 case rtfRowBordTop:
873 info->borderType = RTFBorderRowTop;
874 break;
875 case rtfRowBordLeft:
876 info->borderType = RTFBorderRowLeft;
877 break;
878 case rtfRowBordBottom:
879 info->borderType = RTFBorderRowBottom;
880 break;
881 case rtfRowBordRight:
882 info->borderType = RTFBorderRowRight;
883 break;
884 case rtfCellBordTop:
885 info->borderType = RTFBorderCellTop;
886 break;
887 case rtfCellBordLeft:
888 info->borderType = RTFBorderCellLeft;
889 break;
890 case rtfCellBordBottom:
891 info->borderType = RTFBorderCellBottom;
892 break;
893 case rtfCellBordRight:
894 info->borderType = RTFBorderCellRight;
895 break;
896 case rtfRowGapH:
897 if (info->tableDef)
898 info->tableDef->gapH = info->rtfParam;
899 break;
900 case rtfRowLeftEdge:
901 if (info->tableDef)
902 info->tableDef->leftEdge = info->rtfParam;
903 break;
904 }
905 }
906
907 void ME_RTFSpecialCharHook(RTF_Info *info)
908 {
909 RTFTable *tableDef = info->tableDef;
910 switch (info->rtfMinor)
911 {
912 case rtfNestCell:
913 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
914 break;
915 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
916 case rtfCell:
917 if (!tableDef)
918 break;
919 RTFFlushOutputBuffer(info);
920 if (!info->editor->bEmulateVersion10) { /* v4.1 */
921 if (tableDef->tableRowStart)
922 {
923 if (!info->nestingLevel &&
924 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
925 {
926 ME_DisplayItem *para = tableDef->tableRowStart;
927 para = para->member.para.next_para;
928 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
929 tableDef->tableRowStart = para;
930 info->nestingLevel = 1;
931 }
932 ME_InsertTableCellFromCursor(info->editor);
933 }
934 } else { /* v1.0 - v3.0 */
935 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
936 PARAFORMAT2 *pFmt = para->member.para.pFmt;
937 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
938 tableDef->numCellsInserted < tableDef->numCellsDefined)
939 {
940 WCHAR tab = '\t';
941 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
942 tableDef->numCellsInserted++;
943 }
944 }
945 break;
946 case rtfNestRow:
947 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
948 break;
949 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
950 case rtfRow:
951 {
952 ME_DisplayItem *para, *cell, *run;
953 int i;
954
955 if (!tableDef)
956 break;
957 RTFFlushOutputBuffer(info);
958 if (!info->editor->bEmulateVersion10) { /* v4.1 */
959 if (!tableDef->tableRowStart)
960 break;
961 if (!info->nestingLevel &&
962 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
963 {
964 para = tableDef->tableRowStart;
965 para = para->member.para.next_para;
966 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
967 tableDef->tableRowStart = para;
968 info->nestingLevel++;
969 }
970 para = tableDef->tableRowStart;
971 cell = ME_FindItemFwd(para, diCell);
972 assert(cell && !cell->member.cell.prev_cell);
973 if (tableDef->numCellsDefined < 1)
974 {
975 /* 2000 twips appears to be the cell size that native richedit uses
976 * when no cell sizes are specified. */
977 const int defaultCellSize = 2000;
978 int nRightBoundary = defaultCellSize;
979 cell->member.cell.nRightBoundary = nRightBoundary;
980 while (cell->member.cell.next_cell) {
981 cell = cell->member.cell.next_cell;
982 nRightBoundary += defaultCellSize;
983 cell->member.cell.nRightBoundary = nRightBoundary;
984 }
985 para = ME_InsertTableCellFromCursor(info->editor);
986 cell = para->member.para.pCell;
987 cell->member.cell.nRightBoundary = nRightBoundary;
988 } else {
989 for (i = 0; i < tableDef->numCellsDefined; i++)
990 {
991 RTFCell *cellDef = &tableDef->cells[i];
992 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
993 ME_ApplyBorderProperties(info, &cell->member.cell.border,
994 cellDef->border);
995 cell = cell->member.cell.next_cell;
996 if (!cell)
997 {
998 para = ME_InsertTableCellFromCursor(info->editor);
999 cell = para->member.para.pCell;
1000 }
1001 }
1002 /* Cell for table row delimiter is empty */
1003 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1004 }
1005
1006 run = ME_FindItemFwd(cell, diRun);
1007 if (info->editor->pCursors[0].pRun != run ||
1008 info->editor->pCursors[0].nOffset)
1009 {
1010 int nOfs, nChars;
1011 /* Delete inserted cells that aren't defined. */
1012 info->editor->pCursors[1].pRun = run;
1013 info->editor->pCursors[1].pPara = ME_GetParagraph(run);
1014 info->editor->pCursors[1].nOffset = 0;
1015 nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
1016 nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
1017 ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
1018 nChars, TRUE);
1019 }
1020
1021 para = ME_InsertTableRowEndFromCursor(info->editor);
1022 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1023 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1024 ME_ApplyBorderProperties(info, &para->member.para.border,
1025 tableDef->border);
1026 info->nestingLevel--;
1027 if (!info->nestingLevel)
1028 {
1029 if (info->canInheritInTbl) {
1030 tableDef->tableRowStart = para;
1031 } else {
1032 while (info->tableDef) {
1033 tableDef = info->tableDef;
1034 info->tableDef = tableDef->parent;
1035 heap_free(tableDef);
1036 }
1037 }
1038 } else {
1039 info->tableDef = tableDef->parent;
1040 heap_free(tableDef);
1041 }
1042 } else { /* v1.0 - v3.0 */
1043 WCHAR endl = '\r';
1044 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
1045 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1046 pFmt->dxOffset = info->tableDef->gapH;
1047 pFmt->dxStartIndent = info->tableDef->leftEdge;
1048
1049 ME_ApplyBorderProperties(info, &para->member.para.border,
1050 tableDef->border);
1051 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1052 {
1053 WCHAR tab = '\t';
1054 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1055 tableDef->numCellsInserted++;
1056 }
1057 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1058 if (!tableDef->numCellsDefined)
1059 pFmt->wEffects &= ~PFE_TABLE;
1060 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1061 tableDef->numCellsInserted = 0;
1062 }
1063 break;
1064 }
1065 case rtfTab:
1066 case rtfPar:
1067 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1068 ME_DisplayItem *para;
1069 PARAFORMAT2 *pFmt;
1070 RTFFlushOutputBuffer(info);
1071 para = info->editor->pCursors[0].pPara;
1072 pFmt = para->member.para.pFmt;
1073 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1074 {
1075 /* rtfPar is treated like a space within a table. */
1076 info->rtfClass = rtfText;
1077 info->rtfMajor = ' ';
1078 }
1079 else if (info->rtfMinor == rtfPar && tableDef)
1080 tableDef->numCellsInserted = 0;
1081 }
1082 break;
1083 }
1084 }
1085
1086 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1087 const SIZEL* sz)
1088 {
1089 LPOLEOBJECT lpObject = NULL;
1090 LPSTORAGE lpStorage = NULL;
1091 LPOLECLIENTSITE lpClientSite = NULL;
1092 LPDATAOBJECT lpDataObject = NULL;
1093 LPOLECACHE lpOleCache = NULL;
1094 STGMEDIUM stgm;
1095 FORMATETC fm;
1096 CLSID clsid;
1097 BOOL ret = FALSE;
1098 DWORD conn;
1099
1100 if (hemf)
1101 {
1102 stgm.tymed = TYMED_ENHMF;
1103 stgm.u.hEnhMetaFile = hemf;
1104 fm.cfFormat = CF_ENHMETAFILE;
1105 }
1106 else if (hbmp)
1107 {
1108 stgm.tymed = TYMED_GDI;
1109 stgm.u.hBitmap = hbmp;
1110 fm.cfFormat = CF_BITMAP;
1111 }
1112 stgm.pUnkForRelease = NULL;
1113
1114 fm.ptd = NULL;
1115 fm.dwAspect = DVASPECT_CONTENT;
1116 fm.lindex = -1;
1117 fm.tymed = stgm.tymed;
1118
1119 if (!info->lpRichEditOle)
1120 {
1121 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1122 }
1123
1124 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1125 #if 0
1126 /* FIXME: enable it when rich-edit properly implements this method */
1127 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1128 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1129 #endif
1130 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1131 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1132 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1133 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1134 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1135 {
1136 REOBJECT reobject;
1137
1138 reobject.cbStruct = sizeof(reobject);
1139 reobject.cp = REO_CP_SELECTION;
1140 reobject.clsid = clsid;
1141 reobject.poleobj = lpObject;
1142 reobject.pstg = lpStorage;
1143 reobject.polesite = lpClientSite;
1144 /* convert from twips to .01 mm */
1145 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1146 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1147 reobject.dvaspect = DVASPECT_CONTENT;
1148 reobject.dwFlags = 0; /* FIXME */
1149 reobject.dwUser = 0;
1150
1151 ME_InsertOLEFromCursor(info->editor, &reobject, 0);
1152 ret = TRUE;
1153 }
1154
1155 if (lpObject) IOleObject_Release(lpObject);
1156 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1157 if (lpStorage) IStorage_Release(lpStorage);
1158 if (lpDataObject) IDataObject_Release(lpDataObject);
1159 if (lpOleCache) IOleCache_Release(lpOleCache);
1160
1161 return ret;
1162 }
1163
1164 static void ME_RTFReadPictGroup(RTF_Info *info)
1165 {
1166 SIZEL sz;
1167 BYTE* buffer = NULL;
1168 unsigned bufsz, bufidx;
1169 BOOL flip;
1170 BYTE val;
1171 METAFILEPICT mfp;
1172 HENHMETAFILE hemf;
1173 HBITMAP hbmp;
1174 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1175
1176 RTFGetToken (info);
1177 if (info->rtfClass == rtfEOF)
1178 return;
1179 mfp.mm = MM_TEXT;
1180 /* fetch picture type */
1181 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1182 {
1183 mfp.mm = info->rtfParam;
1184 gfx = gfx_metafile;
1185 }
1186 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1187 {
1188 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1189 gfx = gfx_dib;
1190 }
1191 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1192 {
1193 gfx = gfx_enhmetafile;
1194 }
1195 else
1196 {
1197 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1198 goto skip_group;
1199 }
1200 sz.cx = sz.cy = 0;
1201 /* fetch picture attributes */
1202 for (;;)
1203 {
1204 RTFGetToken (info);
1205 if (info->rtfClass == rtfEOF)
1206 return;
1207 if (info->rtfClass == rtfText)
1208 break;
1209 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1210 {
1211 ERR("Expected picture attribute (%d %d)\n",
1212 info->rtfClass, info->rtfMajor);
1213 goto skip_group;
1214 }
1215 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1216 {
1217 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1218 }
1219 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1220 {
1221 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1222 }
1223 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1224 sz.cx = info->rtfParam;
1225 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1226 sz.cy = info->rtfParam;
1227 else
1228 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1229 }
1230 /* fetch picture data */
1231 bufsz = 1024;
1232 bufidx = 0;
1233 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1234 val = info->rtfMajor;
1235 for (flip = TRUE;; flip = !flip)
1236 {
1237 RTFGetToken (info);
1238 if (info->rtfClass == rtfEOF)
1239 {
1240 HeapFree(GetProcessHeap(), 0, buffer);
1241 return; /* Warn ?? */
1242 }
1243 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1244 break;
1245 if (info->rtfClass != rtfText) goto skip_group;
1246 if (flip)
1247 {
1248 if (bufidx >= bufsz &&
1249 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1250 goto skip_group;
1251 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1252 }
1253 else
1254 val = info->rtfMajor;
1255 }
1256 if (flip) FIXME("wrong hex string\n");
1257
1258 switch (gfx)
1259 {
1260 case gfx_enhmetafile:
1261 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1262 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1263 break;
1264 case gfx_metafile:
1265 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1266 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1267 break;
1268 case gfx_dib:
1269 {
1270 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1271 HDC hdc = GetDC(0);
1272 unsigned nc = bi->bmiHeader.biClrUsed;
1273
1274 /* not quite right, especially for bitfields type of compression */
1275 if (!nc && bi->bmiHeader.biBitCount <= 8)
1276 nc = 1 << bi->bmiHeader.biBitCount;
1277 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1278 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1279 bi, DIB_RGB_COLORS)))
1280 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1281 ReleaseDC(0, hdc);
1282 }
1283 break;
1284 default:
1285 break;
1286 }
1287 HeapFree(GetProcessHeap(), 0, buffer);
1288 RTFRouteToken (info); /* feed "}" back to router */
1289 return;
1290 skip_group:
1291 HeapFree(GetProcessHeap(), 0, buffer);
1292 RTFSkipGroup(info);
1293 RTFRouteToken(info); /* feed "}" back to router */
1294 }
1295
1296 /* for now, lookup the \result part and use it, whatever the object */
1297 static void ME_RTFReadObjectGroup(RTF_Info *info)
1298 {
1299 for (;;)
1300 {
1301 RTFGetToken (info);
1302 if (info->rtfClass == rtfEOF)
1303 return;
1304 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1305 break;
1306 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1307 {
1308 RTFGetToken (info);
1309 if (info->rtfClass == rtfEOF)
1310 return;
1311 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1312 {
1313 int level = 1;
1314
1315 while (RTFGetToken (info) != rtfEOF)
1316 {
1317 if (info->rtfClass == rtfGroup)
1318 {
1319 if (info->rtfMajor == rtfBeginGroup) level++;
1320 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1321 }
1322 RTFRouteToken(info);
1323 }
1324 }
1325 else RTFSkipGroup(info);
1326 continue;
1327 }
1328 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1329 {
1330 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1331 return;
1332 }
1333 }
1334 RTFRouteToken(info); /* feed "}" back to router */
1335 }
1336
1337 static void ME_RTFReadHook(RTF_Info *info)
1338 {
1339 switch(info->rtfClass)
1340 {
1341 case rtfGroup:
1342 switch(info->rtfMajor)
1343 {
1344 case rtfBeginGroup:
1345 if (info->stackTop < maxStack) {
1346 info->stack[info->stackTop].style = info->style;
1347 ME_AddRefStyle(info->style);
1348 info->stack[info->stackTop].codePage = info->codePage;
1349 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1350 }
1351 info->stackTop++;
1352 info->styleChanged = FALSE;
1353 break;
1354 case rtfEndGroup:
1355 {
1356 RTFFlushOutputBuffer(info);
1357 info->stackTop--;
1358 if (info->stackTop <= 0)
1359 info->rtfClass = rtfEOF;
1360 if (info->stackTop < 0)
1361 return;
1362
1363 ME_ReleaseStyle(info->style);
1364 info->style = info->stack[info->stackTop].style;
1365 info->codePage = info->stack[info->stackTop].codePage;
1366 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
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, nUndoMode;
1389 int nEventMask = editor->nEventMask;
1390 ME_InStream inStream;
1391 BOOL invalidRTF = FALSE;
1392 ME_Cursor *selStart, *selEnd;
1393
1394 TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
1395 editor->nEventMask = 0;
1396
1397 ME_GetSelectionOfs(editor, &from, &to);
1398 if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
1399 {
1400 ME_GetSelection(editor, &selStart, &selEnd);
1401 style = ME_GetSelectionInsertStyle(editor);
1402
1403 ME_InternalDeleteText(editor, selStart, to - from, FALSE);
1404
1405 /* Don't insert text at the end of the table row */
1406 if (!editor->bEmulateVersion10) { /* v4.1 */
1407 ME_DisplayItem *para = editor->pCursors->pPara;
1408 if (para->member.para.nFlags & MEPF_ROWEND)
1409 {
1410 para = para->member.para.next_para;
1411 editor->pCursors[0].pPara = para;
1412 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1413 editor->pCursors[0].nOffset = 0;
1414 }
1415 if (para->member.para.nFlags & MEPF_ROWSTART)
1416 {
1417 para = para->member.para.next_para;
1418 editor->pCursors[0].pPara = para;
1419 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1420 editor->pCursors[0].nOffset = 0;
1421 }
1422 editor->pCursors[1] = editor->pCursors[0];
1423 } else { /* v1.0 - 3.0 */
1424 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1425 ME_IsInTable(editor->pCursors[0].pRun))
1426 return 0;
1427 }
1428 } else {
1429 style = editor->pBuffer->pDefaultStyle;
1430 ME_AddRefStyle(style);
1431 ME_SetSelection(editor, 0, 0);
1432 ME_InternalDeleteText(editor, &editor->pCursors[1],
1433 ME_GetTextLength(editor), FALSE);
1434 from = to = 0;
1435 ME_ClearTempStyle(editor);
1436 ME_SetDefaultParaFormat(editor->pCursors[0].pPara->member.para.pFmt);
1437 }
1438
1439
1440 /* Back up undo mode to a local variable */
1441 nUndoMode = editor->nUndoMode;
1442
1443 /* Only create an undo if SFF_SELECTION is set */
1444 if (!(format & SFF_SELECTION))
1445 editor->nUndoMode = umIgnore;
1446
1447 inStream.editstream = stream;
1448 inStream.editstream->dwError = 0;
1449 inStream.dwSize = 0;
1450 inStream.dwUsed = 0;
1451
1452 if (format & SF_RTF)
1453 {
1454 /* Check if it's really RTF, and if it is not, use plain text */
1455 ME_StreamInFill(&inStream);
1456 if (!inStream.editstream->dwError)
1457 {
1458 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1459 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1460 {
1461 invalidRTF = TRUE;
1462 inStream.editstream->dwError = -16;
1463 }
1464 }
1465 }
1466
1467 if (!invalidRTF && !inStream.editstream->dwError)
1468 {
1469 if (format & SF_RTF) {
1470 /* setup the RTF parser */
1471 memset(&parser, 0, sizeof parser);
1472 RTFSetEditStream(&parser, &inStream);
1473 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1474 parser.editor = editor;
1475 parser.style = style;
1476 WriterInit(&parser);
1477 RTFInit(&parser);
1478 RTFSetReadHook(&parser, ME_RTFReadHook);
1479 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1480 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1481 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1482 {
1483 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1484 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1485 }
1486 BeginFile(&parser);
1487
1488 /* do the parsing */
1489 RTFRead(&parser);
1490 RTFFlushOutputBuffer(&parser);
1491 if (!editor->bEmulateVersion10) { /* v4.1 */
1492 if (parser.tableDef && parser.tableDef->tableRowStart &&
1493 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1494 {
1495 /* Delete any incomplete table row at the end of the rich text. */
1496 int nOfs, nChars;
1497 ME_DisplayItem *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
1517 editor->pCursors[1].pPara = para;
1518 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1519 editor->pCursors[1].nOffset = 0;
1520 nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
1521 nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
1522 ME_InternalDeleteText(editor, &editor->pCursors[1], 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 (parser.stackTop > 0)
1533 {
1534 while (--parser.stackTop >= 0)
1535 {
1536 ME_ReleaseStyle(parser.style);
1537 parser.style = parser.stack[parser.stackTop].style;
1538 }
1539 if (!inStream.editstream->dwError)
1540 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1541 }
1542
1543 /* Remove last line break, as mandated by tests. This is not affected by
1544 CR/LF counters, since RTF streaming presents only \para tokens, which
1545 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1546 */
1547 if (stripLastCR) {
1548 int newto;
1549 ME_GetSelection(editor, &selStart, &selEnd);
1550 newto = ME_GetCursorOfs(selEnd);
1551 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1552 WCHAR lastchar[3] = {'\0', '\0'};
1553 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1554 ME_Cursor linebreakCursor = *selEnd;
1555
1556 ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize);
1557 ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, 0);
1558 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1559 ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
1560 }
1561 }
1562 }
1563
1564 style = parser.style;
1565 }
1566 else if (format & SF_TEXT)
1567 ME_StreamInText(editor, format, &inStream, style);
1568 else
1569 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1570 /* put the cursor at the top */
1571 if (!(format & SFF_SELECTION))
1572 ME_SetSelection(editor, 0, 0);
1573 }
1574
1575 /* Restore saved undo mode */
1576 editor->nUndoMode = nUndoMode;
1577
1578 /* even if we didn't add an undo, we need to commit anything on the stack */
1579 ME_CommitUndo(editor);
1580
1581 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1582 if (!(format & SFF_SELECTION))
1583 ME_EmptyUndoStack(editor);
1584
1585 ME_ReleaseStyle(style);
1586 editor->nEventMask = nEventMask;
1587 ME_UpdateRepaint(editor, FALSE);
1588 if (!(format & SFF_SELECTION)) {
1589 ME_ClearTempStyle(editor);
1590 }
1591 ITextHost_TxShowCaret(editor->texthost, FALSE);
1592 ME_MoveCaret(editor);
1593 ITextHost_TxShowCaret(editor->texthost, TRUE);
1594 ME_SendSelChange(editor);
1595 ME_SendRequestResize(editor, FALSE);
1596
1597 return 0;
1598 }
1599
1600
1601 typedef struct tagME_RTFStringStreamStruct
1602 {
1603 char *string;
1604 int pos;
1605 int length;
1606 } ME_RTFStringStreamStruct;
1607
1608 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1609 {
1610 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1611 int count;
1612
1613 count = min(cb, pStruct->length - pStruct->pos);
1614 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1615 pStruct->pos += count;
1616 *pcb = count;
1617 return 0;
1618 }
1619
1620 static void
1621 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1622 {
1623 EDITSTREAM es;
1624 ME_RTFStringStreamStruct data;
1625
1626 data.string = string;
1627 data.length = strlen(string);
1628 data.pos = 0;
1629 es.dwCookie = (DWORD_PTR)&data;
1630 es.pfnCallback = ME_ReadFromRTFString;
1631 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1632 }
1633
1634
1635 static int
1636 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1637 {
1638 const int nLen = lstrlenW(text);
1639 const int nTextLen = ME_GetTextLength(editor);
1640 int nMin, nMax;
1641 ME_Cursor cursor;
1642 WCHAR wLastChar = ' ';
1643
1644 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1645 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1646
1647 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1648 FIXME("Flags 0x%08x not implemented\n",
1649 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1650
1651 nMin = chrg->cpMin;
1652 if (chrg->cpMax == -1)
1653 nMax = nTextLen;
1654 else
1655 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1656
1657 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1658 if (editor->bEmulateVersion10 && nMax == nTextLen)
1659 {
1660 flags |= FR_DOWN;
1661 }
1662
1663 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1664 if (editor->bEmulateVersion10 && nMax < nMin)
1665 {
1666 if (chrgText)
1667 {
1668 chrgText->cpMin = -1;
1669 chrgText->cpMax = -1;
1670 }
1671 return -1;
1672 }
1673
1674 /* when searching up, if cpMin < cpMax, then instead of searching
1675 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1676 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1677 * case, it is always bigger than cpMin.
1678 */
1679 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1680 {
1681 int nSwap = nMax;
1682
1683 nMax = nMin > nTextLen ? nTextLen : nMin;
1684 if (nMin < nSwap || chrg->cpMax == -1)
1685 nMin = 0;
1686 else
1687 nMin = nSwap;
1688 }
1689
1690 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1691 {
1692 if (chrgText)
1693 chrgText->cpMin = chrgText->cpMax = -1;
1694 return -1;
1695 }
1696
1697 if (flags & FR_DOWN) /* Forward search */
1698 {
1699 /* If possible, find the character before where the search starts */
1700 if ((flags & FR_WHOLEWORD) && nMin)
1701 {
1702 ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
1703 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1704 ME_MoveCursorChars(editor, &cursor, 1);
1705 } else {
1706 ME_CursorFromCharOfs(editor, nMin, &cursor);
1707 }
1708
1709 while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
1710 {
1711 ME_DisplayItem *pCurItem = cursor.pRun;
1712 int nCurStart = cursor.nOffset;
1713 int nMatched = 0;
1714
1715 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1716 {
1717 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1718 break;
1719
1720 nMatched++;
1721 if (nMatched == nLen)
1722 {
1723 ME_DisplayItem *pNextItem = pCurItem;
1724 int nNextStart = nCurStart;
1725 WCHAR wNextChar;
1726
1727 /* Check to see if next character is a whitespace */
1728 if (flags & FR_WHOLEWORD)
1729 {
1730 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1731 {
1732 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1733 nNextStart = -nMatched;
1734 }
1735
1736 if (pNextItem)
1737 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1738 else
1739 wNextChar = ' ';
1740
1741 if (isalnumW(wNextChar))
1742 break;
1743 }
1744
1745 cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
1746 if (chrgText)
1747 {
1748 chrgText->cpMin = cursor.nOffset;
1749 chrgText->cpMax = cursor.nOffset + nLen;
1750 }
1751 TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
1752 return cursor.nOffset;
1753 }
1754 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1755 {
1756 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1757 nCurStart = -nMatched;
1758 }
1759 }
1760 if (pCurItem)
1761 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1762 else
1763 wLastChar = ' ';
1764
1765 cursor.nOffset++;
1766 if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
1767 {
1768 ME_NextRun(&cursor.pPara, &cursor.pRun);
1769 cursor.nOffset = 0;
1770 }
1771 }
1772 }
1773 else /* Backward search */
1774 {
1775 /* If possible, find the character after where the search ends */
1776 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1777 {
1778 ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
1779 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1780 ME_MoveCursorChars(editor, &cursor, -1);
1781 } else {
1782 ME_CursorFromCharOfs(editor, nMax, &cursor);
1783 }
1784
1785 while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
1786 {
1787 ME_DisplayItem *pCurItem = cursor.pRun;
1788 ME_DisplayItem *pCurPara = cursor.pPara;
1789 int nCurEnd = cursor.nOffset;
1790 int nMatched = 0;
1791
1792 if (nCurEnd == 0)
1793 {
1794 ME_PrevRun(&pCurPara, &pCurItem);
1795 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1796 }
1797
1798 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1799 {
1800 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1801 break;
1802
1803 nMatched++;
1804 if (nMatched == nLen)
1805 {
1806 ME_DisplayItem *pPrevItem = pCurItem;
1807 int nPrevEnd = nCurEnd;
1808 WCHAR wPrevChar;
1809 int nStart;
1810
1811 /* Check to see if previous character is a whitespace */
1812 if (flags & FR_WHOLEWORD)
1813 {
1814 if (nPrevEnd - nMatched == 0)
1815 {
1816 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1817 if (pPrevItem)
1818 nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
1819 }
1820
1821 if (pPrevItem)
1822 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1823 else
1824 wPrevChar = ' ';
1825
1826 if (isalnumW(wPrevChar))
1827 break;
1828 }
1829
1830 nStart = pCurPara->member.para.nCharOfs
1831 + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1832 if (chrgText)
1833 {
1834 chrgText->cpMin = nStart;
1835 chrgText->cpMax = nStart + nLen;
1836 }
1837 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1838 return nStart;
1839 }
1840 if (nCurEnd - nMatched == 0)
1841 {
1842 ME_PrevRun(&pCurPara, &pCurItem);
1843 /* Don't care about pCurItem becoming NULL here; it's already taken
1844 * care of in the exterior loop condition */
1845 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1846 }
1847 }
1848 if (pCurItem)
1849 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1850 else
1851 wLastChar = ' ';
1852
1853 cursor.nOffset--;
1854 if (cursor.nOffset < 0)
1855 {
1856 ME_PrevRun(&cursor.pPara, &cursor.pRun);
1857 cursor.nOffset = cursor.pRun->member.run.strText->nLen;
1858 }
1859 }
1860 }
1861 TRACE("not found\n");
1862 if (chrgText)
1863 chrgText->cpMin = chrgText->cpMax = -1;
1864 return -1;
1865 }
1866
1867 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
1868 {
1869 int nChars;
1870 ME_Cursor start;
1871
1872 if (!ex->cb || !pText) return 0;
1873
1874 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1875 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1876
1877 if (ex->flags & GT_SELECTION)
1878 {
1879 int from, to;
1880 int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
1881 start = editor->pCursors[nStartCur];
1882 nChars = to - from;
1883 }
1884 else
1885 {
1886 ME_SetCursorToStart(editor, &start);
1887 nChars = INT_MAX;
1888 }
1889 if (ex->codepage == 1200)
1890 {
1891 return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
1892 &start, nChars, ex->flags & GT_USECRLF);
1893 }
1894 else
1895 {
1896 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1897 we can just take a bigger buffer? :)
1898 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
1899 occurs only in richedit 2.0 mode, in which line breaks have only one CR
1900 */
1901 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1902 DWORD buflen;
1903 LPWSTR buffer;
1904 LRESULT rc;
1905
1906 buflen = min(crlfmul * nChars, ex->cb - 1);
1907 buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
1908
1909 nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF);
1910 rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
1911 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
1912 if (rc) rc--; /* do not count 0 terminator */
1913
1914 heap_free(buffer);
1915 return rc;
1916 }
1917 }
1918
1919 static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
1920 const ME_Cursor *start, int nLen, BOOL unicode)
1921 {
1922 if (!strText) return 0;
1923 if (unicode) {
1924 return ME_GetTextW(editor, strText, INT_MAX, start, nLen, 0);
1925 } else {
1926 int nChars;
1927 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1928 if (!p) return 0;
1929 nChars = ME_GetTextW(editor, p, nLen, start, nLen, 0);
1930 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
1931 nLen+1, NULL, NULL);
1932 FREE_OBJ(p);
1933 return nChars;
1934 }
1935 }
1936
1937 typedef struct tagME_GlobalDestStruct
1938 {
1939 HGLOBAL hData;
1940 int nLength;
1941 } ME_GlobalDestStruct;
1942
1943 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1944 {
1945 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1946 int i;
1947 WORD *pSrc, *pDest;
1948
1949 cb = cb >> 1;
1950 pDest = (WORD *)lpBuff;
1951 pSrc = GlobalLock(pData->hData);
1952 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1953 pDest[i] = pSrc[pData->nLength+i];
1954 }
1955 pData->nLength += i;
1956 *pcb = 2*i;
1957 GlobalUnlock(pData->hData);
1958 return 0;
1959 }
1960
1961 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1962 {
1963 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1964 int i;
1965 BYTE *pSrc, *pDest;
1966
1967 pDest = lpBuff;
1968 pSrc = GlobalLock(pData->hData);
1969 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1970 pDest[i] = pSrc[pData->nLength+i];
1971 }
1972 pData->nLength += i;
1973 *pcb = i;
1974 GlobalUnlock(pData->hData);
1975 return 0;
1976 }
1977
1978 static BOOL ME_Paste(ME_TextEditor *editor)
1979 {
1980 DWORD dwFormat = 0;
1981 EDITSTREAM es;
1982 ME_GlobalDestStruct gds;
1983 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1984 UINT cf = 0;
1985
1986 if (IsClipboardFormatAvailable(nRTFFormat))
1987 cf = nRTFFormat, dwFormat = SF_RTF;
1988 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1989 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1990 else
1991 return FALSE;
1992
1993 if (!OpenClipboard(editor->hWnd))
1994 return FALSE;
1995 gds.hData = GetClipboardData(cf);
1996 gds.nLength = 0;
1997 es.dwCookie = (DWORD_PTR)&gds;
1998 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
1999 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2000
2001 CloseClipboard();
2002 return TRUE;
2003 }
2004
2005 static BOOL ME_Copy(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
2006 {
2007 LPDATAOBJECT dataObj = NULL;
2008 HRESULT hr = S_OK;
2009
2010 if (editor->cPasswordMask)
2011 return FALSE; /* Copying or Cutting masked text isn't allowed */
2012
2013 if(editor->lpOleCallback)
2014 {
2015 CHARRANGE range;
2016 range.cpMin = ME_GetCursorOfs(start);
2017 range.cpMax = range.cpMin + nChars;
2018 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2019 }
2020 if(FAILED(hr) || !dataObj)
2021 hr = ME_GetDataObject(editor, start, nChars, &dataObj);
2022 if(SUCCEEDED(hr)) {
2023 hr = OleSetClipboard(dataObj);
2024 IDataObject_Release(dataObj);
2025 }
2026 return SUCCEEDED(hr) != 0;
2027 }
2028
2029 /* helper to send a msg filter notification */
2030 static BOOL
2031 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2032 {
2033 MSGFILTER msgf;
2034
2035 if (!editor->hWnd || !editor->hwndParent) return FALSE;
2036 msgf.nmhdr.hwndFrom = editor->hWnd;
2037 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2038 msgf.nmhdr.code = EN_MSGFILTER;
2039 msgf.msg = msg;
2040 msgf.wParam = *wParam;
2041 msgf.lParam = *lParam;
2042 if (SendMessageW(editor->hwndParent, WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2043 return FALSE;
2044 *wParam = msgf.wParam;
2045 *lParam = msgf.lParam;
2046 msgf.wParam = *wParam;
2047
2048 return TRUE;
2049 }
2050
2051 static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
2052 {
2053 ME_DisplayItem *startPara, *endPara;
2054 ME_DisplayItem *prev_para;
2055 ME_Cursor *from, *to;
2056 ME_Cursor start;
2057 int nChars;
2058
2059 if (!editor->AutoURLDetect_bEnable) return;
2060
2061 ME_GetSelection(editor, &from, &to);
2062
2063 /* Find paragraph previous to the one that contains start cursor */
2064 startPara = from->pPara;
2065 prev_para = startPara->member.para.prev_para;
2066 if (prev_para->type == diParagraph) startPara = prev_para;
2067
2068 /* Find paragraph that contains end cursor */
2069 endPara = to->pPara->member.para.next_para;
2070
2071 start.pPara = startPara;
2072 start.pRun = ME_FindItemFwd(startPara, diRun);
2073 start.nOffset = 0;
2074 nChars = endPara->member.para.nCharOfs - startPara->member.para.nCharOfs;
2075
2076 ME_UpdateLinkAttribute(editor, &start, nChars);
2077 }
2078
2079 static BOOL
2080 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2081 {
2082 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2083 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2084
2085 if (editor->bMouseCaptured)
2086 return FALSE;
2087 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2088 editor->nSelectionType = stPosition;
2089
2090 switch (nKey)
2091 {
2092 case VK_LEFT:
2093 case VK_RIGHT:
2094 case VK_HOME:
2095 case VK_END:
2096 editor->nUDArrowX = -1;
2097 /* fall through */
2098 case VK_UP:
2099 case VK_DOWN:
2100 case VK_PRIOR:
2101 case VK_NEXT:
2102 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2103 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2104 return TRUE;
2105 case VK_BACK:
2106 case VK_DELETE:
2107 editor->nUDArrowX = -1;
2108 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2109 if (editor->styleFlags & ES_READONLY)
2110 return FALSE;
2111 if (ME_IsSelection(editor))
2112 {
2113 ME_DeleteSelection(editor);
2114 ME_CommitUndo(editor);
2115 }
2116 else if (nKey == VK_DELETE)
2117 {
2118 /* Delete stops group typing.
2119 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2120 ME_DeleteTextAtCursor(editor, 1, 1);
2121 ME_CommitUndo(editor);
2122 }
2123 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2124 {
2125 BOOL bDeletionSucceeded;
2126 /* Backspace can be grouped for a single undo */
2127 ME_ContinueCoalescingTransaction(editor);
2128 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2129 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2130 /* Deletion was prevented so the cursor is moved back to where it was.
2131 * (e.g. this happens when trying to delete cell boundaries)
2132 */
2133 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2134 }
2135 ME_CommitCoalescingUndo(editor);
2136 }
2137 else
2138 return TRUE;
2139 ME_MoveCursorFromTableRowStartParagraph(editor);
2140 ME_UpdateSelectionLinkAttribute(editor);
2141 ME_UpdateRepaint(editor, FALSE);
2142 ME_SendRequestResize(editor, FALSE);
2143 return TRUE;
2144 case VK_RETURN:
2145 if (editor->bDialogMode)
2146 {
2147 if (ctrl_is_down)
2148 return TRUE;
2149
2150 if (!(editor->styleFlags & ES_WANTRETURN))
2151 {
2152 if (editor->hwndParent)
2153 {
2154 DWORD dw;
2155 dw = SendMessageW(editor->hwndParent, DM_GETDEFID, 0, 0);
2156 if (HIWORD(dw) == DC_HASDEFID)
2157 {
2158 HWND hwDefCtrl = GetDlgItem(editor->hwndParent, LOWORD(dw));
2159 if (hwDefCtrl)
2160 {
2161 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, TRUE);
2162 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
2163 }
2164 }
2165 }
2166 return TRUE;
2167 }
2168 }
2169
2170 if (editor->styleFlags & ES_MULTILINE)
2171 {
2172 ME_Cursor cursor = editor->pCursors[0];
2173 ME_DisplayItem *para = cursor.pPara;
2174 int from, to;
2175 const WCHAR endl = '\r';
2176 ME_Style *style;
2177
2178 if (editor->styleFlags & ES_READONLY) {
2179 MessageBeep(MB_ICONERROR);
2180 return TRUE;
2181 }
2182
2183 ME_GetSelectionOfs(editor, &from, &to);
2184 if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2185 {
2186 if (!editor->bEmulateVersion10) { /* v4.1 */
2187 if (para->member.para.nFlags & MEPF_ROWEND) {
2188 /* Add a new table row after this row. */
2189 para = ME_AppendTableRow(editor, para);
2190 para = para->member.para.next_para;
2191 editor->pCursors[0].pPara = para;
2192 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2193 editor->pCursors[0].nOffset = 0;
2194 editor->pCursors[1] = editor->pCursors[0];
2195 ME_CommitUndo(editor);
2196 ME_CheckTablesForCorruption(editor);
2197 ME_UpdateRepaint(editor, FALSE);
2198 return TRUE;
2199 }
2200 else if (para == editor->pCursors[1].pPara &&
2201 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
2202 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
2203 !para->member.para.prev_para->member.para.nCharOfs)
2204 {
2205 /* Insert a newline before the table. */
2206 para = para->member.para.prev_para;
2207 para->member.para.nFlags &= ~MEPF_ROWSTART;
2208 editor->pCursors[0].pPara = para;
2209 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2210 editor->pCursors[1] = editor->pCursors[0];
2211 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2212 editor->pCursors[0].pRun->member.run.style);
2213 para = editor->pBuffer->pFirst->member.para.next_para;
2214 ME_SetDefaultParaFormat(para->member.para.pFmt);
2215 para->member.para.nFlags = MEPF_REWRAP;
2216 editor->pCursors[0].pPara = para;
2217 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2218 editor->pCursors[1] = editor->pCursors[0];
2219 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
2220 ME_CommitCoalescingUndo(editor);
2221 ME_CheckTablesForCorruption(editor);
2222 ME_UpdateRepaint(editor, FALSE);
2223 return TRUE;
2224 }
2225 } else { /* v1.0 - 3.0 */
2226 ME_DisplayItem *para = cursor.pPara;
2227 if (ME_IsInTable(para))
2228 {
2229 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
2230 {
2231 if (from == to) {
2232 ME_ContinueCoalescingTransaction(editor);
2233 para = ME_AppendTableRow(editor, para);
2234 editor->pCursors[0].pPara = para;
2235 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2236 editor->pCursors[0].nOffset = 0;
2237 editor->pCursors[1] = editor->pCursors[0];
2238 ME_CommitCoalescingUndo(editor);
2239 ME_UpdateRepaint(editor, FALSE);
2240 return TRUE;
2241 }
2242 } else {
2243 ME_ContinueCoalescingTransaction(editor);
2244 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2245 !ME_IsInTable(para->member.para.prev_para))
2246 {
2247 /* Insert newline before table */
2248 cursor.pRun = ME_FindItemBack(para, diRun);
2249 if (cursor.pRun) {
2250 editor->pCursors[0].pRun = cursor.pRun;
2251 editor->pCursors[0].pPara = para->member.para.prev_para;
2252 }
2253 editor->pCursors[0].nOffset = 0;
2254 editor->pCursors[1] = editor->pCursors[0];
2255 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2256 editor->pCursors[0].pRun->member.run.style);
2257 } else {
2258 editor->pCursors[1] = editor->pCursors[0];
2259 para = ME_AppendTableRow(editor, para);
2260 editor->pCursors[0].pPara = para;
2261 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2262 editor->pCursors[0].nOffset = 0;
2263 editor->pCursors[1] = editor->pCursors[0];
2264 }
2265 ME_CommitCoalescingUndo(editor);
2266 ME_UpdateRepaint(editor, FALSE);
2267 return TRUE;
2268 }
2269 }
2270 }
2271
2272 style = ME_GetInsertStyle(editor, 0);
2273 ME_SaveTempStyle(editor);
2274 ME_ContinueCoalescingTransaction(editor);
2275 if (shift_is_down)
2276 ME_InsertEndRowFromCursor(editor, 0);
2277 else
2278 ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
2279 ME_ReleaseStyle(style);
2280 ME_CommitCoalescingUndo(editor);
2281 SetCursor(NULL);
2282
2283 ME_UpdateSelectionLinkAttribute(editor);
2284 ME_UpdateRepaint(editor, FALSE);
2285 }
2286 return TRUE;
2287 }
2288 break;
2289 case VK_ESCAPE:
2290 if (editor->bDialogMode && editor->hwndParent)
2291 PostMessageW(editor->hwndParent, WM_CLOSE, 0, 0);
2292 return TRUE;
2293 case VK_TAB:
2294 if (editor->bDialogMode && editor->hwndParent)
2295 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, shift_is_down, 0);
2296 return TRUE;
2297 case 'A':
2298 if (ctrl_is_down)
2299 {
2300 ME_SetSelection(editor, 0, -1);
2301 return TRUE;
2302 }
2303 break;
2304 case 'V':
2305 if (ctrl_is_down)
2306 return ME_Paste(editor);
2307 break;
2308 case 'C':
2309 case 'X':
2310 if (ctrl_is_down)
2311 {
2312 BOOL result;
2313 int nOfs, nChars;
2314 int nStartCur = ME_GetSelectionOfs(editor, &nOfs, &nChars);
2315 ME_Cursor *selStart = &editor->pCursors[nStartCur];
2316
2317 nChars -= nOfs;
2318 result = ME_Copy(editor, selStart, nChars);
2319 if (result && nKey == 'X')
2320 {
2321 ME_InternalDeleteText(editor, selStart, nChars, FALSE);
2322 ME_CommitUndo(editor);
2323 ME_UpdateRepaint(editor, TRUE);
2324 }
2325 return result;
2326 }
2327 break;
2328 case 'Z':
2329 if (ctrl_is_down)
2330 {
2331 ME_Undo(editor);
2332 return TRUE;
2333 }
2334 break;
2335 case 'Y':
2336 if (ctrl_is_down)
2337 {
2338 ME_Redo(editor);
2339 return TRUE;
2340 }
2341 break;
2342
2343 default:
2344 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2345 editor->nUDArrowX = -1;
2346 if (ctrl_is_down)
2347 {
2348 if (nKey == 'W')
2349 {
2350 CHARFORMAT2W chf;
2351 char buf[2048];
2352 chf.cbSize = sizeof(chf);
2353
2354 ME_GetSelectionCharFormat(editor, &chf);
2355 ME_DumpStyleToBuf(&chf, buf);
2356 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2357 }
2358 if (nKey == 'Q')
2359 {
2360 ME_CheckCharOffsets(editor);
2361 }
2362 }
2363 }
2364 return FALSE;
2365 }
2366
2367 static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
2368 LPARAM flags, BOOL unicode)
2369 {
2370 WCHAR wstr;
2371
2372 if (editor->bMouseCaptured)
2373 return 0;
2374
2375 if (unicode)
2376 wstr = (WCHAR)charCode;
2377 else
2378 {
2379 CHAR charA = charCode;
2380 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2381 }
2382
2383 if (editor->styleFlags & ES_READONLY) {
2384 MessageBeep(MB_ICONERROR);
2385 return 0; /* FIXME really 0 ? */
2386 }
2387
2388 if ((unsigned)wstr >= ' ' || wstr == '\t')
2389 {
2390 ME_Cursor cursor = editor->pCursors[0];
2391 ME_DisplayItem *para = cursor.pPara;
2392 int from, to;
2393 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2394 ME_GetSelectionOfs(editor, &from, &to);
2395 if (wstr == '\t' &&
2396 /* v4.1 allows tabs to be inserted with ctrl key down */
2397 !(ctrl_is_down && !editor->bEmulateVersion10))
2398 {
2399 ME_DisplayItem *para;
2400 BOOL bSelectedRow = FALSE;
2401
2402 para = cursor.pPara;
2403 if (ME_IsSelection(editor) &&
2404 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2405 to == ME_GetCursorOfs(&editor->pCursors[0]) &&
2406 para->member.para.prev_para->type == diParagraph)
2407 {
2408 para = para->member.para.prev_para;
2409 bSelectedRow = TRUE;
2410 }
2411 if (ME_IsInTable(para))
2412 {
2413 ME_TabPressedInTable(editor, bSelectedRow);
2414 ME_CommitUndo(editor);
2415 return 0;
2416 }
2417 } else if (!editor->bEmulateVersion10) { /* v4.1 */
2418 if (para->member.para.nFlags & MEPF_ROWEND) {
2419 if (from == to) {
2420 para = para->member.para.next_para;
2421 if (para->member.para.nFlags & MEPF_ROWSTART)
2422 para = para->member.para.next_para;
2423 editor->pCursors[0].pPara = para;
2424 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2425 editor->pCursors[0].nOffset = 0;
2426 editor->pCursors[1] = editor->pCursors[0];
2427 }
2428 }
2429 } else { /* v1.0 - 3.0 */
2430 if (ME_IsInTable(cursor.pRun) &&
2431 cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
2432 from == to)
2433 {
2434 /* Text should not be inserted at the end of the table. */
2435 MessageBeep(-1);
2436 return 0;
2437 }
2438 }
2439 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2440 /* WM_CHAR is restricted to nTextLimit */
2441 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2442 {
2443 ME_Style *style = ME_GetInsertStyle(editor, 0);
2444 ME_SaveTempStyle(editor);
2445 ME_ContinueCoalescingTransaction(editor);
2446 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2447 ME_ReleaseStyle(style);
2448 ME_CommitCoalescingUndo(editor);
2449 ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
2450 }
2451
2452 ME_UpdateSelectionLinkAttribute(editor);
2453 ME_UpdateRepaint(editor, FALSE);
2454 }
2455 return 0;
2456 }
2457
2458 /* Process the message and calculate the new click count.
2459 *
2460 * returns: The click count if it is mouse down event, else returns 0. */
2461 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2462 LPARAM lParam)
2463 {
2464 static int clickNum = 0;
2465 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2466 return 0;
2467
2468 if ((msg == WM_LBUTTONDBLCLK) ||
2469 (msg == WM_RBUTTONDBLCLK) ||
2470 (msg == WM_MBUTTONDBLCLK) ||
2471 (msg == WM_XBUTTONDBLCLK))
2472 {
2473 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2474 }
2475
2476 if ((msg == WM_LBUTTONDOWN) ||
2477 (msg == WM_RBUTTONDOWN) ||
2478 (msg == WM_MBUTTONDOWN) ||
2479 (msg == WM_XBUTTONDOWN))
2480 {
2481 static MSG prevClickMsg;
2482 MSG clickMsg;
2483 /* Compare the editor instead of the hwnd so that the this
2484 * can still be done for windowless richedit controls. */
2485 clickMsg.hwnd = (HWND)editor;
2486 clickMsg.message = msg;
2487 clickMsg.wParam = wParam;
2488 clickMsg.lParam = lParam;
2489 clickMsg.time = GetMessageTime();
2490 clickMsg.pt.x = (short)LOWORD(lParam);
2491 clickMsg.pt.y = (short)HIWORD(lParam);
2492 if ((clickNum != 0) &&
2493 (clickMsg.message == prevClickMsg.message) &&
2494 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2495 (clickMsg.wParam == prevClickMsg.wParam) &&
2496 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2497 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2498 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2499 {
2500 clickNum++;
2501 } else {
2502 clickNum = 1;
2503 }
2504 prevClickMsg = clickMsg;
2505 } else {
2506 return 0;
2507 }
2508 return clickNum;
2509 }
2510
2511 static BOOL ME_SetCursor(ME_TextEditor *editor)
2512 {
2513 ME_Cursor cursor;
2514 POINT pt;
2515 BOOL isExact;
2516 SCROLLBARINFO sbi;
2517 DWORD messagePos = GetMessagePos();
2518 pt.x = (short)LOWORD(messagePos);
2519 pt.y = (short)HIWORD(messagePos);
2520
2521 if (editor->hWnd)
2522 {
2523 sbi.cbSize = sizeof(sbi);
2524 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2525 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2526 PtInRect(&sbi.rcScrollBar, pt))
2527 {
2528 ITextHost_TxSetCursor(editor->texthost,
2529 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2530 return TRUE;
2531 }
2532 sbi.cbSize = sizeof(sbi);
2533 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2534 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2535 PtInRect(&sbi.rcScrollBar, pt))
2536 {
2537 ITextHost_TxSetCursor(editor->texthost,
2538 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2539 return TRUE;
2540 }
2541 }
2542 ITextHost_TxScreenToClient(editor->texthost, &pt);
2543
2544 if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
2545 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2546 return TRUE;
2547 }
2548 if (!editor->bEmulateVersion10 /* v4.1 */ &&
2549 pt.y < editor->rcFormat.top &&
2550 pt.x < editor->rcFormat.left)
2551 {
2552 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2553 return TRUE;
2554 }
2555 if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
2556 {
2557 if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
2558 ITextHost_TxSetCursor(editor->texthost,
2559 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2560 else /* v4.1 */
2561 ITextHost_TxSetCursor(editor->texthost,
2562 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2563 return TRUE;
2564 }
2565 if (pt.x < editor->rcFormat.left)
2566 {
2567 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2568 return TRUE;
2569 }
2570 ME_CharFromPos(editor, pt.x, pt.y, &cursor, &isExact);
2571 if (isExact)
2572 {
2573 ME_Run *run;
2574
2575 run = &cursor.pRun->member.run;
2576 if (run->style->fmt.dwMask & CFM_LINK &&
2577 run->style->fmt.dwEffects & CFE_LINK)
2578 {
2579 ITextHost_TxSetCursor(editor->texthost,
2580 LoadCursorW(NULL, (WCHAR*)IDC_HAND),
2581 FALSE);
2582 return TRUE;
2583 }
2584
2585 if (ME_IsSelection(editor))
2586 {
2587 int selStart, selEnd;
2588 int offset = ME_GetCursorOfs(&cursor);
2589
2590 ME_GetSelectionOfs(editor, &selStart, &selEnd);
2591 if (selStart <= offset && selEnd >= offset) {
2592 ITextHost_TxSetCursor(editor->texthost,
2593 LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
2594 FALSE);
2595 return TRUE;
2596 }
2597 }
2598 }
2599 ITextHost_TxSetCursor(editor->texthost,
2600 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2601 return TRUE;
2602 }
2603
2604 static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
2605 {
2606 ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
2607 editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
2608 editor->rcFormat.left += 1 + editor->selofs;
2609 editor->rcFormat.right -= 1;
2610 }
2611
2612 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2613 {
2614 CHARRANGE selrange;
2615 HMENU menu;
2616 int seltype = 0;
2617 if(!editor->lpOleCallback || !editor->hWnd)
2618 return FALSE;
2619 ME_GetSelectionOfs(editor, &selrange.cpMin, &selrange.cpMax);
2620 if(selrange.cpMin == selrange.cpMax)
2621 seltype |= SEL_EMPTY;
2622 else
2623 {
2624 /* FIXME: Handle objects */
2625 seltype |= SEL_TEXT;
2626 if(selrange.cpMax-selrange.cpMin > 1)
2627 seltype |= SEL_MULTICHAR;
2628 }
2629 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2630 {
2631 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, editor->hwndParent, NULL);
2632 DestroyMenu(menu);
2633 }
2634 return TRUE;
2635 }
2636
2637 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
2638 {
2639 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2640 int i;
2641 DWORD props;
2642 LONG selbarwidth;
2643
2644 ed->hWnd = NULL;
2645 ed->hwndParent = NULL;
2646 ed->sizeWindow.cx = ed->sizeWindow.cy = 0;
2647 ed->texthost = texthost;
2648 ed->bEmulateVersion10 = bEmulateVersion10;
2649 ed->styleFlags = 0;
2650 ITextHost_TxGetPropertyBits(texthost,
2651 (TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
2652 TXTBIT_READONLY|TXTBIT_USEPASSWORD|
2653 TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
2654 TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
2655 TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
2656 &props);
2657 ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
2658 ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
2659 ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
2660 ed->pBuffer = ME_MakeText();
2661 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2662 ed->nAvailWidth = 0; /* wrap to client area */
2663 ME_MakeFirstParagraph(ed);
2664 /* The four cursors are for:
2665 * 0 - The position where the caret is shown
2666 * 1 - The anchored end of the selection (for normal selection)
2667 * 2 & 3 - The anchored start and end respectively for word, line,
2668 * or paragraph selection.
2669 */
2670 ed->nCursors = 4;
2671 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2672 ME_SetCursorToStart(ed, &ed->pCursors[0]);
2673 ed->pCursors[1] = ed->pCursors[0];
2674 ed->pCursors[2] = ed->pCursors[0];
2675 ed->pCursors[3] = ed->pCursors[1];
2676 ed->nLastTotalLength = ed->nTotalLength = 0;
2677 ed->nLastTotalWidth = ed->nTotalWidth = 0;
2678 ed->nUDArrowX = -1;
2679 ed->nSequence = 0;
2680 ed->rgbBackColor = -1;
2681 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2682 ed->bCaretAtEnd = FALSE;
2683 ed->nEventMask = 0;
2684 ed->nModifyStep = 0;
2685 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2686 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2687 ed->nUndoStackSize = 0;
2688 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2689 ed->nUndoMode = umAddToUndo;
2690 ed->nParagraphs = 1;
2691 ed->nLastSelStart = ed->nLastSelEnd = 0;
2692 ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
2693 ed->bHideSelection = FALSE;
2694 ed->pfnWordBreak = NULL;
2695 ed->lpOleCallback = NULL;
2696 ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2697 ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
2698 ed->AutoURLDetect_bEnable = FALSE;
2699 ed->bHaveFocus = FALSE;
2700 ed->bDialogMode = FALSE;
2701 ed->bMouseCaptured = FALSE;
2702 for (i=0; i<HFONT_CACHE_SIZE; i++)
2703 {
2704 ed->pFontCache[i].nRefs = 0;
2705 ed->pFontCache[i].nAge = 0;
2706 ed->pFontCache[i].hFont = NULL;
2707 }
2708
2709 ME_CheckCharOffsets(ed);
2710 ed->bDefaultFormatRect = TRUE;
2711 ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
2712 if (selbarwidth) {
2713 /* FIXME: Convert selbarwidth from HIMETRIC to pixels */
2714 ed->selofs = SELECTIONBAR_WIDTH;
2715 ed->styleFlags |= ES_SELECTIONBAR;
2716 } else {
2717 ed->selofs = 0;
2718 }
2719 ed->nSelectionType = stPosition;
2720
2721 ed->cPasswordMask = 0;
2722 if (props & TXTBIT_USEPASSWORD)
2723 ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
2724
2725 if (props & TXTBIT_AUTOWORDSEL)
2726 ed->styleFlags |= ECO_AUTOWORDSELECTION;
2727 if (props & TXTBIT_MULTILINE) {
2728 ed->styleFlags |= ES_MULTILINE;
2729 ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
2730 } else {
2731 ed->bWordWrap = FALSE;
2732 }
2733 if (props & TXTBIT_READONLY)
2734 ed->styleFlags |= ES_READONLY;
2735 if (!(props & TXTBIT_HIDESELECTION))
2736 ed->styleFlags |= ES_NOHIDESEL;
2737 if (props & TXTBIT_SAVESELECTION)
2738 ed->styleFlags |= ES_SAVESEL;
2739 if (props & TXTBIT_VERTICAL)
2740 ed->styleFlags |= ES_VERTICAL;
2741 if (props & TXTBIT_DISABLEDRAG)
2742 ed->styleFlags |= ES_NOOLEDRAGDROP;
2743
2744 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2745
2746 /* Default scrollbar information */
2747 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2748 ed->vert_si.nMin = 0;
2749 ed->vert_si.nMax = 0;
2750 ed->vert_si.nPage = 0;
2751 ed->vert_si.nPos = 0;
2752
2753 ed->horz_si.cbSize = sizeof(SCROLLINFO);
2754 ed->horz_si.nMin = 0;
2755 ed->horz_si.nMax = 0;
2756 ed->horz_si.nPage = 0;
2757 ed->horz_si.nPos = 0;
2758
2759 OleInitialize(NULL);
2760
2761 return ed;
2762 }
2763
2764 static void ME_DestroyEditor(ME_TextEditor *editor)
2765 {
2766 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2767 ME_DisplayItem *p = pFirst, *pNext = NULL;
2768 int i;
2769
2770 ME_ClearTempStyle(editor);
2771 ME_EmptyUndoStack(editor);
2772 while(p) {
2773 pNext = p->next;
2774 ME_DestroyDisplayItem(p);
2775 p = pNext;
2776 }
2777 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2778 for (i=0; i<HFONT_CACHE_SIZE; i++)
2779 {
2780 if (editor->pFontCache[i].hFont)
2781 DeleteObject(editor->pFontCache[i].hFont);
2782 }
2783 if (editor->rgbBackColor != -1)
2784 DeleteObject(editor->hbrBackground);
2785 if(editor->lpOleCallback)
2786 IUnknown_Release(editor->lpOleCallback);
2787 IUnknown_Release(editor->texthost);
2788 OleUninitialize();
2789
2790 FREE_OBJ(editor->pBuffer);
2791 FREE_OBJ(editor->pCursors);
2792
2793 FREE_OBJ(editor);
2794 }
2795
2796 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2797 {
2798 TRACE("\n");
2799 switch (fdwReason)
2800 {
2801 case DLL_PROCESS_ATTACH:
2802 DisableThreadLibraryCalls(hinstDLL);
2803 me_heap = HeapCreate (0, 0x10000, 0);
2804 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2805 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2806 LookupInit();
2807 break;
2808
2809 case DLL_PROCESS_DETACH:
2810 UnregisterClassW(RICHEDIT_CLASS20W, 0);
2811 UnregisterClassW(MSFTEDIT_CLASS, 0);
2812 UnregisterClassA(RICHEDIT_CLASS20A, 0);
2813 UnregisterClassA("RichEdit50A", 0);
2814 if (ME_ListBoxRegistered)
2815 UnregisterClassW(REListBox20W, 0);
2816 if (ME_ComboBoxRegistered)
2817 UnregisterClassW(REComboBox20W, 0);
2818 LookupCleanup();
2819 HeapDestroy (me_heap);
2820 me_heap = NULL;
2821 break;
2822 }
2823 return TRUE;
2824 }
2825
2826
2827 static const char * const edit_messages[] = {
2828 "EM_GETSEL",
2829 "EM_SETSEL",
2830 "EM_GETRECT",
2831 "EM_SETRECT",
2832 "EM_SETRECTNP",
2833 "EM_SCROLL",
2834 "EM_LINESCROLL",
2835 "EM_SCROLLCARET",
2836 "EM_GETMODIFY",
2837 "EM_SETMODIFY",
2838 "EM_GETLINECOUNT",
2839 "EM_LINEINDEX",
2840 "EM_SETHANDLE",
2841 "EM_GETHANDLE",
2842 "EM_GETTHUMB",
2843 "EM_UNKNOWN_BF",
2844 "EM_UNKNOWN_C0",
2845 "EM_LINELENGTH",
2846 "EM_REPLACESEL",
2847 "EM_UNKNOWN_C3",
2848 "EM_GETLINE",
2849 "EM_LIMITTEXT",
2850 "EM_CANUNDO",
2851 "EM_UNDO",
2852 "EM_FMTLINES",
2853 "EM_LINEFROMCHAR",
2854 "EM_UNKNOWN_CA",
2855 "EM_SETTABSTOPS",
2856 "EM_SETPASSWORDCHAR",
2857 "EM_EMPTYUNDOBUFFER",
2858 "EM_GETFIRSTVISIBLELINE",
2859 "EM_SETREADONLY",
2860 "EM_SETWORDBREAKPROC",
2861 "EM_GETWORDBREAKPROC",
2862 "EM_GETPASSWORDCHAR",
2863 "EM_SETMARGINS",
2864 "EM_GETMARGINS",
2865 "EM_GETLIMITTEXT",
2866 "EM_POSFROMCHAR",
2867 "EM_CHARFROMPOS",
2868 "EM_SETIMESTATUS",
2869 "EM_GETIMESTATUS"
2870 };
2871
2872 static const char * const richedit_messages[] = {
2873 "EM_CANPASTE",
2874 "EM_DISPLAYBAND",
2875 "EM_EXGETSEL",
2876 "EM_EXLIMITTEXT",
2877 "EM_EXLINEFROMCHAR",
2878 "EM_EXSETSEL",
2879 "EM_FINDTEXT",
2880 "EM_FORMATRANGE",
2881 "EM_GETCHARFORMAT",
2882 "EM_GETEVENTMASK",
2883 "EM_GETOLEINTERFACE",
2884 "EM_GETPARAFORMAT",
2885 "EM_GETSELTEXT",
2886 "EM_HIDESELECTION",
2887 "EM_PASTESPECIAL",
2888 "EM_REQUESTRESIZE",
2889 "EM_SELECTIONTYPE",
2890 "EM_SETBKGNDCOLOR",
2891 "EM_SETCHARFORMAT",
2892 "EM_SETEVENTMASK",
2893 "EM_SETOLECALLBACK",
2894 "EM_SETPARAFORMAT",
2895 "EM_SETTARGETDEVICE",
2896 "EM_STREAMIN",
2897 "EM_STREAMOUT",
2898 "EM_GETTEXTRANGE",
2899 "EM_FINDWORDBREAK",
2900 "EM_SETOPTIONS",
2901 "EM_GETOPTIONS",
2902 "EM_FINDTEXTEX",
2903 "EM_GETWORDBREAKPROCEX",
2904 "EM_SETWORDBREAKPROCEX",
2905 "EM_SETUNDOLIMIT",
2906 "EM_UNKNOWN_USER_83",
2907 "EM_REDO",
2908 "EM_CANREDO",
2909 "EM_GETUNDONAME",
2910 "EM_GETREDONAME",
2911 "EM_STOPGROUPTYPING",
2912 "EM_SETTEXTMODE",
2913 "EM_GETTEXTMODE",
2914 "EM_AUTOURLDETECT",
2915 "EM_GETAUTOURLDETECT",
2916 "EM_SETPALETTE",
2917 "EM_GETTEXTEX",
2918 "EM_GETTEXTLENGTHEX",
2919 "EM_SHOWSCROLLBAR",
2920 "EM_SETTEXTEX",
2921 "EM_UNKNOWN_USER_98",
2922 "EM_UNKNOWN_USER_99",
2923 "EM_SETPUNCTUATION",
2924 "EM_GETPUNCTUATION",
2925 "EM_SETWORDWRAPMODE",
2926 "EM_GETWORDWRAPMODE",
2927 "EM_SETIMECOLOR",
2928 "EM_GETIMECOLOR",
2929 "EM_SETIMEOPTIONS",
2930 "EM_GETIMEOPTIONS",
2931 "EM_CONVPOSITION",
2932 "EM_UNKNOWN_USER_109",
2933 "EM_UNKNOWN_USER_110",
2934 "EM_UNKNOWN_USER_111",
2935 "EM_UNKNOWN_USER_112",
2936 "EM_UNKNOWN_USER_113",
2937 "EM_UNKNOWN_USER_114",
2938 "EM_UNKNOWN_USER_115",
2939 "EM_UNKNOWN_USER_116",
2940 "EM_UNKNOWN_USER_117",
2941 "EM_UNKNOWN_USER_118",
2942 "EM_UNKNOWN_USER_119",
2943 "EM_SETLANGOPTIONS",
2944 "EM_GETLANGOPTIONS",
2945 "EM_GETIMECOMPMODE",
2946 "EM_FINDTEXTW",
2947 "EM_FINDTEXTEXW",
2948 "EM_RECONVERSION",
2949 "EM_SETIMEMODEBIAS",
2950 "EM_GETIMEMODEBIAS"
2951 };
2952
2953 static const char *
2954 get_msg_name(UINT msg)
2955 {
2956 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2957 return edit_messages[msg - EM_GETSEL];
2958 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2959 return richedit_messages[msg - EM_CANPASTE];
2960 return "";
2961 }
2962
2963 static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2964 {
2965 int x,y;
2966 BOOL isExact;
2967 ME_Cursor cursor; /* The start of the clicked text. */
2968
2969 ENLINK info;
2970 x = (short)LOWORD(lParam);
2971 y = (short)HIWORD(lParam);
2972 ME_CharFromPos(editor, x, y, &cursor, &isExact);
2973 if (!isExact) return;
2974
2975 if (cursor.pRun->member.run.style->fmt.dwMask & CFM_LINK &&
2976 cursor.pRun->member.run.style->fmt.dwEffects & CFE_LINK)
2977 { /* The clicked run has CFE_LINK set */
2978 info.nmhdr.hwndFrom = NULL;
2979 info.nmhdr.idFrom = 0;
2980 info.nmhdr.code = EN_LINK;
2981 info.msg = msg;
2982 info.wParam = wParam;
2983 info.lParam = lParam;
2984 cursor.nOffset = 0;
2985 info.chrg.cpMin = ME_GetCursorOfs(&cursor);
2986 info.chrg.cpMax = info.chrg.cpMin + cursor.pRun->member.run.strText->nLen;
2987 ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
2988 }
2989 }
2990
2991 #define UNSUPPORTED_MSG(e) \
2992 case e: \
2993 FIXME(#e ": stub\n"); \
2994 *phresult = S_FALSE; \
2995 return 0;
2996
2997 /* Handle messages for windowless and windoweded richedit controls.
2998 *
2999 * The LRESULT that is returned is a return value for window procs,
3000 * and the phresult parameter is the COM return code needed by the
3001 * text services interface. */
3002 LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
3003 LPARAM lParam, BOOL unicode, HRESULT* phresult)
3004 {
3005 *phresult = S_OK;
3006
3007 switch(msg) {
3008
3009 UNSUPPORTED_MSG(EM_DISPLAYBAND)
3010 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
3011 UNSUPPORTED_MSG(EM_FMTLINES)
3012 UNSUPPORTED_MSG(EM_FORMATRANGE)
3013 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
3014 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
3015 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
3016 UNSUPPORTED_MSG(EM_GETIMESTATUS)
3017 UNSUPPORTED_MSG(EM_SETIMESTATUS)
3018 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
3019 UNSUPPORTED_MSG(EM_GETREDONAME)
3020 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
3021 UNSUPPORTED_MSG(EM_GETUNDONAME)
3022 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
3023 UNSUPPORTED_MSG(EM_PASTESPECIAL)
3024 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
3025 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
3026 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
3027 UNSUPPORTED_MSG(EM_SETFONTSIZE)
3028 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
3029 UNSUPPORTED_MSG(EM_SETMARGINS)
3030 UNSUPPORTED_MSG(EM_SETPALETTE)
3031 UNSUPPORTED_MSG(EM_SETTABSTOPS)
3032 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
3033 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
3034
3035 /* Messages specific to Richedit controls */
3036
3037 case EM_STREAMIN:
3038 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
3039 case EM_STREAMOUT:
3040 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
3041 case WM_GETDLGCODE:
3042 {
3043 UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
3044 if (lParam)
3045 editor->bDialogMode = TRUE;
3046 if (editor->styleFlags & ES_MULTILINE)
3047 code |= DLGC_WANTMESSAGE;
3048 return code;
3049 }
3050 case EM_EMPTYUNDOBUFFER:
3051 ME_EmptyUndoStack(editor);
3052 return 0;
3053 case EM_GETSEL:
3054 {
3055 /* Note: wParam/lParam can be NULL */
3056 UINT from, to;
3057 PUINT pfrom = wParam ? (PUINT)wParam : &from;
3058 PUINT pto = lParam ? (PUINT)lParam : &to;
3059 ME_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
3060 if ((*pfrom|*pto) & 0xFFFF0000)
3061 return -1;
3062 return MAKELONG(*pfrom,*pto);
3063 }
3064 case EM_EXGETSEL:
3065 {
3066 CHARRANGE *pRange = (CHARRANGE *)lParam;
3067 ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
3068 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
3069 return 0;
3070 }
3071 case EM_SETUNDOLIMIT:
3072 {
3073 if ((int)wParam < 0)
3074 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3075 else
3076 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3077 /* Setting a max stack size keeps wine from getting killed
3078 for hogging memory. Windows allocates all this memory at once, so
3079 no program would realistically set a value above our maximum. */
3080 return editor->nUndoLimit;
3081 }
3082 case EM_CANUNDO:
3083 return editor->pUndoStack != NULL;
3084 case EM_CANREDO:
3085 return editor->pRedoStack != NULL;
3086 case WM_UNDO: /* FIXME: actually not the same */
3087 case EM_UNDO:
3088 return ME_Undo(editor);
3089 case EM_REDO:
3090 return ME_Redo(editor);
3091 case EM_GETOPTIONS:
3092 {
3093 /* these flags are equivalent to the ES_* counterparts */
3094 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3095 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3096 DWORD settings = editor->styleFlags & mask;
3097
3098 return settings;
3099 }
3100 case EM_SETOPTIONS:
3101 {
3102 /* these flags are equivalent to ES_* counterparts, except for
3103 * ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
3104 * but is still stored in editor->styleFlags. */
3105 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3106 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
3107 ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
3108 DWORD settings = mask & editor->styleFlags;
3109 DWORD oldSettings = settings;
3110 DWORD changedSettings;
3111
3112 switch(wParam)
3113 {
3114 case ECOOP_SET:
3115 settings = lParam;
3116 break;
3117 case ECOOP_OR:
3118 settings |= lParam;
3119 break;
3120 case ECOOP_AND:
3121 settings &= lParam;
3122 break;
3123 case ECOOP_XOR:
3124 settings ^= lParam;
3125 }
3126 changedSettings = oldSettings ^ settings;
3127
3128 if (changedSettings) {
3129 editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
3130
3131 if (changedSettings & ECO_SELECTIONBAR)
3132 {
3133 ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
3134 if (settings & ECO_SELECTIONBAR) {
3135 assert(!editor->selofs);
3136 editor->selofs = SELECTIONBAR_WIDTH;
3137 editor->rcFormat.left += editor->selofs;
3138 } else {
3139 editor->rcFormat.left -= editor->selofs;
3140 editor->selofs = 0;
3141 }
3142 ME_RewrapRepaint(editor);
3143 }
3144
3145 if (changedSettings & settings & ECO_VERTICAL)
3146 FIXME("ECO_VERTICAL not implemented yet!\n");
3147 if (changedSettings & settings & ECO_AUTOHSCROLL)
3148 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
3149 if (changedSettings & settings & ECO_AUTOVSCROLL)
3150 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
3151 if (changedSettings & settings & ECO_NOHIDESEL)
3152 FIXME("ECO_NOHIDESEL not implemented yet!\n");
3153 if (changedSettings & settings & ECO_WANTRETURN)
3154 FIXME("ECO_WANTRETURN not implemented yet!\n");
3155 if (changedSettings & settings & ECO_AUTOWORDSELECTION)
3156 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
3157 }
3158
3159 return settings;
3160 }
3161 case EM_SETSEL:
3162 {
3163 ME_InvalidateSelection(editor);
3164 ME_SetSelection(editor, wParam, lParam);
3165 ME_InvalidateSelection(editor);
3166 ITextHost_TxShowCaret(editor->texthost, FALSE);
3167 ME_ShowCaret(editor);
3168 ME_SendSelChange(editor);
3169 return 0;
3170 }
3171 case EM_SETSCROLLPOS:
3172 {
3173 POINT *point = (POINT *)lParam;
3174 ME_ScrollAbs(editor, point->x, point->y);
3175 return 0;
3176 }
3177 case EM_AUTOURLDETECT:
3178 {
3179 if (wParam==1 || wParam ==0)
3180 {
3181 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3182 return 0;
3183 }
3184 return E_INVALIDARG;
3185 }
3186 case EM_GETAUTOURLDETECT:
3187 {
3188 return editor->AutoURLDetect_bEnable;
3189 }
3190 case EM_EXSETSEL:
3191 {
3192 int end;
3193 CHARRANGE range = *(CHARRANGE *)lParam;
3194
3195 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
3196
3197 ME_InvalidateSelection(editor);
3198 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
3199 ME_InvalidateSelection(editor);
3200 ITextHost_TxShowCaret(editor->texthost, FALSE);
3201 ME_ShowCaret(editor);
3202 ME_SendSelChange(editor);
3203
3204 return end;
3205 }
3206 case EM_SHOWSCROLLBAR:
3207 {
3208 DWORD flags;
3209
3210 switch (wParam)
3211 {
3212 case SB_HORZ:
3213 flags = WS_HSCROLL;
3214 break;
3215 case SB_VERT:
3216 flags = WS_VSCROLL;
3217 break;
3218 case SB_BOTH:
3219 flags = WS_HSCROLL|WS_VSCROLL;
3220 break;
3221 default:
3222 return 0;
3223 }
3224
3225 if (lParam) {
3226 editor->styleFlags |= flags;
3227 if (flags & WS_HSCROLL)
3228 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
3229 editor->nTotalWidth > editor->sizeWindow.cx);
3230 if (flags & WS_VSCROLL)
3231 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
3232 editor->nTotalLength > editor->sizeWindow.cy);
3233 } else {
3234 editor->styleFlags &= ~flags;
3235 ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
3236 }
3237 return 0;
3238 }
3239 case EM_SETTEXTEX:
3240 {
3241 LPWSTR wszText;
3242 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3243 size_t len = 0;
3244 int from, to;
3245 ME_Style *style;
3246 BOOL bRtf, bUnicode, bSelection;
3247 int oldModify = editor->nModifyStep;
3248
3249 if (!pStruct) return 0;
3250
3251 /* If we detect ascii rtf at the start of the string,
3252 * we know it isn't unicode. */
3253 bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
3254 !strncmp((char *)lParam, "{\\urtf", 6)));
3255 bUnicode = !bRtf && pStruct->codepage == 1200;
3256
3257 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3258 bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3259 pStruct->flags, pStruct->codepage);
3260
3261 bSelection = (pStruct->flags & ST_SELECTION) != 0;
3262 if (bSelection) {
3263 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3264 style = ME_GetSelectionInsertStyle(editor);
3265 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
3266 } else {
3267 ME_Cursor start;
3268 ME_SetCursorToStart(editor, &start);
3269 ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
3270 style = editor->pBuffer->pDefaultStyle;
3271 }
3272
3273 if (bRtf) {
3274 ME_StreamInRTFString(editor, bSelection, (char *)lParam);
3275 if (bSelection) {
3276 /* FIXME: The length returned doesn't include the rtf control
3277 * characters, only the actual text. */
3278 len = lParam ? strlen((char *)lParam) : 0;
3279 }
3280 } else {
3281 /* FIXME: make use of pStruct->codepage in the to unicode translation */
3282 wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
3283 len = wszText ? lstrlenW(wszText) : 0;
3284 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3285 ME_EndToUnicode(bUnicode, wszText);
3286 }
3287
3288 if (bSelection) {
3289 ME_ReleaseStyle(style);
3290 ME_UpdateSelectionLinkAttribute(editor);
3291 } else {
3292 ME_Cursor cursor;
3293 len = 1;
3294 ME_SetCursorToStart(editor, &cursor);
3295 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3296 }
3297 ME_CommitUndo(editor);
3298 if (!(pStruct->flags & ST_KEEPUNDO))
3299 {
3300 editor->nModifyStep = oldModify;
3301 ME_EmptyUndoStack(editor);
3302 }
3303 ME_UpdateRepaint(editor, FALSE);
3304 return len;
3305 }
3306 case EM_SETBKGNDCOLOR:
3307 {
3308 LRESULT lColor;
3309 if (editor->rgbBackColor != -1) {
3310 DeleteObject(editor->hbrBackground);
3311 lColor = editor->rgbBackColor;
3312 }
3313 else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
3314
3315 if (wParam)
3316 {
3317 editor->rgbBackColor = -1;
3318 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
3319 }
3320 else
3321 {
3322 editor->rgbBackColor = lParam;
3323 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
3324 }
3325 ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
3326 ITextHost_TxViewChange(editor->texthost, TRUE);
3327 return lColor;
3328 }
3329 case EM_GETMODIFY:
3330 return editor->nModifyStep == 0 ? 0 : -1;
3331 case EM_SETMODIFY:
3332 {
3333 if (wParam)
3334 editor->nModifyStep = 1;
3335 else
3336 editor->nModifyStep = 0;
3337
3338 return 0;
3339 }
3340 case EM_SETREADONLY:
3341 {
3342 if (wParam)
3343 editor->styleFlags |= ES_READONLY;
3344 else
3345 editor->styleFlags &= ~ES_READONLY;
3346 return 0;
3347 }
3348 case EM_SETEVENTMASK:
3349 {
3350 DWORD nOldMask = editor->nEventMask;
3351
3352 editor->nEventMask = lParam;
3353 return nOldMask;
3354 }
3355 case EM_GETEVENTMASK:
3356 return editor->nEventMask;
3357 case EM_SETCHARFORMAT:
3358 {
3359 CHARFORMAT2W buf, *p;
3360 BOOL bRepaint = TRUE;
3361 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
3362 if (p == NULL) return 0;
3363 if (wParam & SCF_ALL) {
3364 if (editor->mode & TM_PLAINTEXT) {
3365 ME_SetDefaultCharFormat(editor, p);
3366 } else {
3367 ME_Cursor start;
3368 ME_SetCursorToStart(editor, &start);
3369 ME_SetCharFormat(editor, &start, NULL, p);
3370 editor->nModifyStep = 1;
3371 }
3372 } else if (wParam & SCF_SELECTION) {
3373 if (editor->mode & TM_PLAINTEXT)
3374 return 0;
3375 if (wParam & SCF_WORD) {
3376 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
3377 return 0;
3378 }
3379 bRepaint = ME_IsSelection(editor);
3380 ME_SetSelectionCharFormat(editor, p);
3381 if (bRepaint) editor->nModifyStep = 1;
3382 } else { /* SCF_DEFAULT */
3383 ME_SetDefaultCharFormat(editor, p);
3384 }
3385 ME_CommitUndo(editor);
3386 if (bRepaint)
3387 {
3388 ME_WrapMarkedParagraphs(editor);
3389 ME_UpdateScrollBar(editor);
3390 ME_Repaint(editor);
3391 }
3392 return 1;
3393 }
3394 case EM_GETCHARFORMAT:
3395 {
3396 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3397 if (dst->cbSize != sizeof(CHARFORMATA) &&
3398 dst->cbSize != sizeof(CHARFORMATW) &&
3399 dst->cbSize != sizeof(CHARFORMAT2A) &&
3400 dst->cbSize != sizeof(CHARFORMAT2W))
3401 return 0;
3402 tmp.cbSize = sizeof(tmp);
3403 if (!wParam)
3404 ME_GetDefaultCharFormat(editor, &tmp);
3405 else
3406 ME_GetSelectionCharFormat(editor, &tmp);
3407 ME_CopyToCFAny(dst, &tmp);
3408 return tmp.dwMask;
3409 }
3410 case EM_SETPARAFORMAT:
3411 {
3412 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3413 ME_WrapMarkedParagraphs(editor);
3414 ME_UpdateScrollBar(editor);
3415 ME_Repaint(editor);
3416 ME_CommitUndo(editor);
3417 return result;
3418 }
3419 case EM_GETPARAFORMAT:
3420 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3421 return ((PARAFORMAT2 *)lParam)->dwMask;
3422 case EM_GETFIRSTVISIBLELINE:
3423 {
3424 ME_DisplayItem *p = editor->pBuffer->pFirst;
3425 int y = editor->vert_si.nPos;
3426 int ypara = 0;
3427 int count = 0;
3428 int ystart, yend;
3429 while(p) {
3430 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3431 if (p->type == diTextEnd)
3432 break;
3433 if (p->type == diParagraph) {
3434 ypara = p->member.para.pt.y;
3435 continue;
3436 }
3437 ystart = ypara + p->member.row.pt.y;
3438 yend = ystart + p->member.row.nHeight;
3439 if (y < yend) {
3440 break;
3441 }
3442 count++;
3443 }
3444 return count;
3445 }
3446 case EM_HIDESELECTION:
3447 {
3448 editor->bHideSelection = (wParam != 0);
3449 ME_InvalidateSelection(editor);
3450 return 0;
3451 }
3452 case EM_LINESCROLL:
3453 {
3454 if (!(editor->styleFlags & ES_MULTILINE))
3455 return FALSE;
3456 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3457 return TRUE;
3458 }
3459 case WM_CLEAR:
3460 {
3461 int from, to;
3462 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3463 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3464 ME_CommitUndo(editor);
3465 ME_UpdateRepaint(editor, TRUE);
3466 return 0;
3467 }
3468 case EM_REPLACESEL:
3469 {
3470 int from, to, nStartCursor;
3471 ME_Style *style;
3472 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3473 size_t len = wszText ? lstrlenW(wszText) : 0;
3474 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3475
3476 nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3477 style = ME_GetSelectionInsertStyle(editor);
3478 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3479 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3480 ME_ReleaseStyle(style);
3481 /* drop temporary style if line end */
3482 /*
3483 * FIXME question: does abc\n mean: put abc,
3484 * clear temp style, put \n? (would require a change)
3485 */
3486 if (len>0 && wszText[len-1] == '\n')
3487 ME_ClearTempStyle(editor);
3488 ME_EndToUnicode(unicode, wszText);
3489 ME_CommitUndo(editor);
3490 ME_UpdateSelectionLinkAttribute(editor);
3491 if (!wParam)
3492 ME_EmptyUndoStack(editor);
3493 ME_UpdateRepaint(editor, FALSE);
3494 return len;
3495 }
3496 case EM_SCROLLCARET:
3497 ME_EnsureVisible(editor, &editor->pCursors[0]);
3498 return 0;
3499 case WM_SETFONT:
3500 {
3501 LOGFONTW lf;
3502 CHARFORMAT2W fmt;
3503 HDC hDC;
3504 BOOL bRepaint = LOWORD(lParam);
3505
3506 if (!wParam)
3507 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3508 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3509 hDC = ITextHost_TxGetDC(editor->texthost);
3510 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3511 ITextHost_TxReleaseDC(editor->texthost, hDC);
3512 if (editor->mode & TM_RICHTEXT) {
3513 ME_Cursor start;
3514 ME_SetCursorToStart(editor, &start);
3515 ME_SetCharFormat(editor, &start, NULL, &fmt);
3516 }
3517 ME_SetDefaultCharFormat(editor, &fmt);
3518
3519 ME_CommitUndo(editor);
3520 ME_MarkAllForWrapping(editor);
3521 ME_WrapMarkedParagraphs(editor);
3522 ME_UpdateScrollBar(editor);
3523 if (bRepaint)
3524 ME_Repaint(editor);
3525 return 0;
3526 }
3527 case WM_SETTEXT:
3528 {
3529 ME_Cursor cursor;
3530 ME_SetCursorToStart(editor, &cursor);
3531 ME_InternalDeleteText(editor, &cursor, ME_GetTextLength(editor), FALSE);
3532 if (lParam)
3533 {
3534 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3535 if (!strncmp((char *)lParam, "{\\rtf", 5) ||
3536 !strncmp((char *)lParam, "{\\urtf", 6))
3537 {
3538 /* Undocumented: WM_SETTEXT supports RTF text */
3539 ME_StreamInRTFString(editor, 0, (char *)lParam);
3540 }
3541 else
3542 {
3543 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3544 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3545 if (lstrlenW(wszText) > 0)
3546 {
3547 int len = -1;
3548
3549 /* uses default style! */
3550 if (!(editor->styleFlags & ES_MULTILINE))
3551 {
3552 WCHAR * p;
3553
3554 p = wszText;
3555 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3556 len = p - wszText;
3557 }
3558 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3559 }
3560 ME_EndToUnicode(unicode, wszText);
3561 }
3562 }
3563 else
3564 TRACE("WM_SETTEXT - NULL\n");
3565 ME_SetCursorToStart(editor, &cursor);
3566 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3567 ME_SetSelection(editor, 0, 0);
3568 editor->nModifyStep = 0;
3569 ME_CommitUndo(editor);
3570 ME_EmptyUndoStack(editor);
3571 ME_UpdateRepaint(editor, FALSE);
3572 return 1;
3573 }
3574 case EM_CANPASTE:
3575 {
3576 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3577 if (IsClipboardFormatAvailable(nRTFFormat))
3578 return TRUE;
3579 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3580 return TRUE;
3581 return FALSE;
3582 }
3583 case WM_PASTE:
3584 ME_Paste(editor);
3585 return 0;
3586 case WM_CUT:
3587 case WM_COPY:
3588 {
3589 int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
3590 int nChars = nTo - nFrom;
3591 ME_Cursor *selStart = &editor->pCursors[nStartCur];
3592
3593 if (ME_Copy(editor, selStart, nChars) && msg == WM_CUT)
3594 {
3595 ME_InternalDeleteText(editor, selStart, nChars, FALSE);
3596 ME_CommitUndo(editor);
3597 ME_UpdateRepaint(editor, TRUE);
3598 }
3599 return 0;
3600 }
3601 case WM_GETTEXTLENGTH:
3602 {
3603 GETTEXTLENGTHEX how;
3604
3605 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3606 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3607 how.codepage = unicode ? 1200 : CP_ACP;
3608 return ME_GetTextLengthEx(editor, &how);
3609 }
3610 case EM_GETTEXTLENGTHEX:
3611 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3612 case WM_GETTEXT:
3613 {
3614 GETTEXTEX ex;
3615 ex.cb = wParam * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3616 ex.flags = GT_USECRLF;
3617 ex.codepage = unicode ? 1200 : CP_ACP;
3618 ex.lpDefaultChar = NULL;
3619 ex.lpUsedDefChar = NULL;
3620 return ME_GetTextEx(editor, &ex, lParam);
3621 }
3622 case EM_GETTEXTEX:
3623 return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
3624 case EM_GETSELTEXT:
3625 {
3626 int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
3627 ME_Cursor *from = &editor->pCursors[nStartCur];
3628 return ME_GetTextRange(editor, (WCHAR *)lParam, from,
3629 nTo - nFrom, unicode);
3630 }
3631 case EM_GETSCROLLPOS:
3632 {
3633 POINT *point = (POINT *)lParam;
3634 point->x = editor->horz_si.nPos;
3635 point->y = editor->vert_si.nPos;
3636 /* 16-bit scaled value is returned as stored in scrollinfo */
3637 if (editor->horz_si.nMax > 0xffff)
3638 point->x = MulDiv(point->x, 0xffff, editor->horz_si.nMax);
3639 if (editor->vert_si.nMax > 0xffff)
3640 point->y = MulDiv(point->y, 0xffff, editor->vert_si.nMax);
3641 return 1;
3642 }
3643 case EM_GETTEXTRANGE:
3644 {
3645 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3646 ME_Cursor start;
3647 int nStart = rng->chrg.cpMin;
3648 int nEnd = rng->chrg.cpMax;
3649 int textlength = ME_GetTextLength(editor);
3650
3651 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d textlength=%d\n",
3652 rng->chrg.cpMin, rng->chrg.cpMax, unicode, textlength);
3653 if (nStart < 0) return 0;
3654 if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
3655 nEnd = textlength;
3656 if (nStart >= nEnd) return 0;
3657
3658 ME_CursorFromCharOfs(editor, nStart, &start);
3659 return ME_GetTextRange(editor, rng->lpstrText, &start, nEnd - nStart, unicode);
3660 }
3661 case EM_GETLINE:
3662 {
3663 ME_DisplayItem *run;
3664 const unsigned int nMaxChars = *(WORD *) lParam;
3665 unsigned int nCharsLeft = nMaxChars;
3666 char *dest = (char *) lParam;
3667 BOOL wroteNull = FALSE;
3668
3669 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3670 unicode ? "Unicode" : "Ansi");
3671
3672 run = ME_FindRowWithNumber(editor, wParam);
3673 if (run == NULL)
3674 return 0;
3675
3676 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3677 && run->type == diRun)
3678 {
3679 unsigned int nCopy;
3680 ME_String *strText;
3681
3682 strText = run->member.run.strText;
3683 nCopy = min(nCharsLeft, strText->nLen);
3684
3685 if (unicode)
3686 memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
3687 else
3688 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3689 nCharsLeft, NULL, NULL);
3690 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3691 nCharsLeft -= nCopy;
3692 }
3693
3694 /* append line termination, space allowing */
3695 if (nCharsLeft > 0)
3696 {
3697 if (unicode)
3698 *((WCHAR *)dest) = '\0';
3699 else
3700 *dest = '\0';
3701 nCharsLeft--;
3702 wroteNull = TRUE;
3703 }
3704
3705 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3706 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3707 }
3708 case EM_GETLINECOUNT:
3709 {
3710 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3711 int nRows = 0;
3712
3713 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3714
3715 while (item != editor->pBuffer->pLast)
3716 {
3717 assert(item->type == diParagraph);
3718 prev_para = ME_FindItemBack(item, diRun);
3719 if (prev_para) {
3720 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3721 }
3722 nRows += item->member.para.nRows;
3723 item = item->member.para.next_para;
3724 }
3725 last_para = ME_FindItemBack(item, diRun);
3726 assert(last_para);
3727 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3728 if (editor->bEmulateVersion10 && prev_para &&
3729 last_para->member.run.nCharOfs == 0 &&
3730 prev_para->member.run.strText->nLen == 1 &&
3731 prev_para->member.run.strText->szData[0] == '\r')
3732 {
3733 /* In 1.0 emulation, the last solitary \r at the very end of the text
3734 (if one exists) is NOT a line break.
3735 FIXME: this is an ugly hack. This should have a more regular model. */
3736 nRows--;
3737 }
3738
3739 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3740 return max(1, nRows);
3741 }
3742 case EM_LINEFROMCHAR:
3743 {
3744 if (wParam == -1)
3745 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
3746 else
3747 return ME_RowNumberFromCharOfs(editor, wParam);
3748 }
3749 case EM_EXLINEFROMCHAR:
3750 {
3751 if (lParam == -1)
3752 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
3753 else
3754 return ME_RowNumberFromCharOfs(editor, lParam);
3755 }
3756 case EM_LINEINDEX:
3757 {
3758 ME_DisplayItem *item, *para;
3759 int nCharOfs;
3760
3761 if (wParam == -1)
3762 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3763 else
3764 item = ME_FindRowWithNumber(editor, wParam);
3765 if (!item)
3766 return -1;
3767 para = ME_GetParagraph(item);
3768 item = ME_FindItemFwd(item, diRun);
3769 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3770 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3771 return nCharOfs;
3772 }
3773 case EM_LINELENGTH:
3774 {
3775 ME_DisplayItem *item, *item_end;
3776 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3777 ME_DisplayItem *para, *run;
3778
3779 if (wParam > ME_GetTextLength(editor))
3780 return 0;
3781 if (wParam == -1)
3782 {
3783 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3784 return 0;
3785 }
3786 ME_RunOfsFromCharOfs(editor, wParam, &para, &run, NULL);
3787 item = ME_RowStart(run);
3788 nThisLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item, diRun), 0);
3789 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3790 if (item_end->type == diStartRow) {
3791 nNextLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item_end, diRun), 0);
3792 } else {
3793 ME_DisplayItem *endRun = ME_FindItemBack(item_end, diRun);
3794 assert(endRun && endRun->member.run.nFlags & MERF_ENDPARA);
3795 nNextLineOfs = item_end->member.para.nCharOfs - endRun->member.run.strText->nLen;
3796 }
3797 nChars = nNextLineOfs - nThisLineOfs;
3798 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3799 return nChars;
3800 }
3801 case EM_EXLIMITTEXT:
3802 {
3803 if ((int)lParam < 0)
3804 return 0;
3805 if (lParam == 0)
3806 editor->nTextLimit = 65536;
3807 else
3808 editor->nTextLimit = (int) lParam;
3809 return 0;
3810 }
3811 case EM_LIMITTEXT:
3812 {
3813 if (wParam == 0)
3814 editor->nTextLimit = 65536;
3815 else
3816 editor->nTextLimit = (int) wParam;
3817 return 0;
3818 }
3819 case EM_GETLIMITTEXT:
3820 {
3821 return editor->nTextLimit;
3822 }
3823 case EM_FINDTEXT:
3824 {
3825 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3826 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3827 WCHAR *tmp;
3828 LRESULT r;
3829
3830 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3831 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3832 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3833 FREE_OBJ( tmp );
3834 return r;
3835 }
3836 case EM_FINDTEXTEX:
3837 {
3838 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3839 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3840 WCHAR *tmp;
3841 LRESULT r;
3842
3843 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3844 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3845 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3846 FREE_OBJ( tmp );
3847 return r;
3848 }
3849 case EM_FINDTEXTW:
3850 {
3851 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3852 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3853 }
3854 case EM_FINDTEXTEXW:
3855 {
3856 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3857 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3858 }
3859 case EM_GETZOOM:
3860 if (!wParam || !lParam)
3861 return FALSE;
3862 *(int *)wParam = editor->nZoomNumerator;
3863 *(int *)lParam = editor->nZoomDenominator;
3864 return TRUE;
3865 case EM_SETZOOM:
3866 return ME_SetZoom(editor, wParam, lParam);
3867 case EM_CHARFROMPOS:
3868 {
3869 ME_Cursor cursor;
3870 if (ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y,
3871 &cursor, NULL))
3872 return ME_GetCursorOfs(&cursor);
3873 else
3874 return -1;
3875 }
3876 case EM_POSFROMCHAR:
3877 {
3878 ME_DisplayItem *pPara, *pRun;
3879 int nCharOfs, nOffset, nLength;
3880 POINTL pt = {0,0};
3881
3882 nCharOfs = wParam;
3883 /* detect which API version we're dealing with */
3884 if (wParam >= 0x40000)
3885 nCharOfs = lParam;
3886 nLength = ME_GetTextLength(editor);
3887 nCharOfs = min(nCharOfs, nLength);
3888 nCharOfs = max(nCharOfs, 0);
3889
3890 ME_RunOfsFromCharOfs(editor, nCharOfs, &pPara, &pRun, &nOffset);
3891 assert(pRun->type == diRun);
3892 pt.y = pRun->member.run.pt.y;
3893 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3894 pt.y += pPara->member.para.pt.y + editor->rcFormat.top;
3895 pt.x += editor->rcFormat.left;
3896
3897 pt.x -= editor->horz_si.nPos;
3898 pt.y -= editor->vert_si.nPos;
3899
3900 if (wParam >= 0x40000) {
3901 *(POINTL *)wParam = pt;
3902 }
3903 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3904 }
3905 case WM_CREATE:
3906 {
3907 INT max;
3908
3909 ME_SetDefaultFormatRect(editor);
3910
3911 max = (editor->styleFlags & ES_DISABLENOSCROLL) ? 1 : 0;
3912 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_VSCROLL)
3913 ITextHost_TxSetScrollRange(editor->texthost, SB_VERT, 0, max, TRUE);
3914
3915 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_HSCROLL)
3916 ITextHost_TxSetScrollRange(editor->texthost, SB_HORZ, 0, max, TRUE);
3917
3918 if (editor->styleFlags & ES_DISABLENOSCROLL)
3919 {
3920 if (editor->styleFlags & WS_VSCROLL)
3921 {
3922 ITextHost_TxEnableScrollBar(editor->texthost, SB_VERT, ESB_DISABLE_BOTH);
3923 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT, TRUE);
3924 }
3925 if (editor->styleFlags & WS_HSCROLL)
3926 {
3927 ITextHost_TxEnableScrollBar(editor->texthost, SB_HORZ, ESB_DISABLE_BOTH);
3928 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ, TRUE);
3929 }
3930 }
3931
3932 ME_CommitUndo(editor);
3933 ME_WrapMarkedParagraphs(editor);
3934 ME_MoveCaret(editor);
3935 return 0;
3936 }
3937 case WM_DESTROY:
3938 ME_DestroyEditor(editor);
3939 return 0;
3940 case WM_SETCURSOR:
3941 {
3942 return ME_SetCursor(editor);
3943 }
3944 case WM_LBUTTONDBLCLK:
3945 case WM_LBUTTONDOWN:
3946 {
3947 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3948 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3949 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3950 return 0;
3951 ITextHost_TxSetFocus(editor->texthost);
3952 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3953 ME_CalculateClickCount(editor, msg, wParam, lParam));
3954 ITextHost_TxSetCapture(editor->texthost, TRUE);
3955 editor->bMouseCaptured = TRUE;
3956 ME_LinkNotify(editor,msg,wParam,lParam);
3957 if (!ME_SetCursor(editor)) goto do_default;
3958 break;
3959 }
3960 case WM_MOUSEMOVE:
3961 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3962 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3963 return 0;
3964 if (editor->bMouseCaptured)
3965 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3966 ME_LinkNotify(editor,msg,wParam,lParam);
3967 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3968 if (editor->bMouseCaptured)
3969 ME_SetCursor(editor);
3970 break;
3971 case WM_LBUTTONUP:
3972 if (editor->bMouseCaptured) {
3973 ITextHost_TxSetCapture(editor->texthost, FALSE);
3974 editor->bMouseCaptured = FALSE;
3975 }
3976 if (editor->nSelectionType == stDocument)
3977 editor->nSelectionType = stPosition;
3978 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3979 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3980 return 0;
3981 else
3982 {
3983 ME_SetCursor(editor);
3984 ME_LinkNotify(editor,msg,wParam,lParam);
3985 }
3986 break;
3987 case WM_RBUTTONUP:
3988 case WM_RBUTTONDOWN:
3989 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3990 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3991 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3992 return 0;
3993 goto do_default;
3994 case WM_CONTEXTMENU:
3995 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3996 goto do_default;
3997 break;
3998 case WM_SETFOCUS:
3999 editor->bHaveFocus = TRUE;
4000 ME_ShowCaret(editor);
4001 ME_SendOldNotify(editor, EN_SETFOCUS);
4002 return 0;
4003 case WM_KILLFOCUS:
4004 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
4005 editor->bHaveFocus = FALSE;
4006 ME_HideCaret(editor);
4007 ME_SendOldNotify(editor, EN_KILLFOCUS);
4008 return 0;
4009 case WM_COMMAND:
4010 TRACE("editor wnd command = %d\n", LOWORD(wParam));
4011 return 0;
4012 case WM_KEYUP:
4013 if ((editor->nEventMask & ENM_KEYEVENTS) &&
4014 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4015 return 0;
4016 goto do_default;
4017 case WM_KEYDOWN:
4018 if ((editor->nEventMask & ENM_KEYEVENTS) &&
4019 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4020 return 0;
4021 if (ME_KeyDown(editor, LOWORD(wParam)))
4022 return 0;
4023 goto do_default;
4024 case WM_CHAR:
4025 return ME_Char(editor, wParam, lParam, unicode);
4026 case WM_UNICHAR:
4027 if (unicode)
4028 {
4029 if(wParam == UNICODE_NOCHAR) return TRUE;
4030 if(wParam <= 0x000fffff)
4031 {
4032 if(wParam > 0xffff) /* convert to surrogates */
4033 {
4034 wParam -= 0x10000;
4035 ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
4036 ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
4037 } else {
4038 ME_Char(editor, wParam, 0, TRUE);
4039 }
4040 }
4041 return 0;
4042 }
4043 break;
4044 case EM_STOPGROUPTYPING:
4045 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
4046 return 0;
4047 case WM_HSCROLL:
4048 {
4049 const int scrollUnit = 7;
4050
4051 switch(LOWORD(wParam))
4052 {
4053 case SB_LEFT:
4054 ME_ScrollAbs(editor, 0, 0);
4055 break;
4056 case SB_RIGHT:
4057 ME_ScrollAbs(editor,
4058 editor->horz_si.nMax - (int)editor->horz_si.nPage,
4059 editor->vert_si.nMax - (int)editor->vert_si.nPage);
4060 break;
4061 case SB_LINELEFT:
4062 ME_ScrollLeft(editor, scrollUnit);
4063 break;
4064 case SB_LINERIGHT:
4065 ME_ScrollRight(editor, scrollUnit);
4066 break;
4067 case SB_PAGELEFT:
4068 ME_ScrollLeft(editor, editor->sizeWindow.cx);
4069 break;
4070 case SB_PAGERIGHT:
4071 ME_ScrollRight(editor, editor->sizeWindow.cx);
4072 break;
4073 case SB_THUMBTRACK:
4074 case SB_THUMBPOSITION:
4075 {
4076 int pos = HIWORD(wParam);
4077 if (editor->horz_si.nMax > 0xffff)
4078 pos = MulDiv(pos, editor->horz_si.nMax, 0xffff);
4079 ME_HScrollAbs(editor, pos);
4080 break;
4081 }
4082 }
4083 break;
4084 }
4085 case EM_SCROLL: /* fall through */
4086 case WM_VSCROLL:
4087 {
4088 int origNPos;
4089 int lineHeight;
4090
4091 origNPos = editor->vert_si.nPos;
4092 lineHeight = 24;
4093
4094 if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
4095 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
4096 if (lineHeight <= 0) lineHeight = 24;
4097
4098 switch(LOWORD(wParam))
4099 {
4100 case SB_TOP:
4101 ME_ScrollAbs(editor, 0, 0);
4102 break;
4103 case SB_BOTTOM:
4104 ME_ScrollAbs(editor,
4105 editor->horz_si.nMax - (int)editor->horz_si.nPage,
4106 editor->vert_si.nMax - (int)editor->vert_si.nPage);
4107 break;
4108 case SB_LINEUP:
4109 ME_ScrollUp(editor,lineHeight);
4110 break;
4111 case SB_LINEDOWN:
4112 ME_ScrollDown(editor,lineHeight);
4113 break;
4114 case SB_PAGEUP:
4115 ME_ScrollUp(editor,editor->sizeWindow.cy);
4116 break;
4117 case SB_PAGEDOWN:
4118 ME_ScrollDown(editor,editor->sizeWindow.cy);
4119 break;
4120 case SB_THUMBTRACK:
4121 case SB_THUMBPOSITION:
4122 {
4123 int pos = HIWORD(wParam);
4124 if (editor->vert_si.nMax > 0xffff)
4125 pos = MulDiv(pos, editor->vert_si.nMax, 0xffff);
4126 ME_VScrollAbs(editor, pos);
4127 break;
4128 }
4129 }
4130 if (msg == EM_SCROLL)
4131 return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
4132 break;
4133 }
4134 case WM_MOUSEWHEEL:
4135 {
4136 int gcWheelDelta;
4137 UINT pulScrollLines;
4138 BOOL ctrl_is_down;
4139
4140 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
4141 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4142 return 0;
4143
4144 ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
4145
4146 gcWheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4147
4148 if (abs(gcWheelDelta) >= WHEEL_DELTA)
4149 {
4150 if (ctrl_is_down) {
4151 int numerator;
4152 if (!editor->nZoomNumerator || !editor->nZoomDenominator)
4153 {
4154 numerator = 100;
4155 } else {
4156 numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
4157 }
4158 numerator = numerator + (gcWheelDelta / WHEEL_DELTA) * 10;
4159 if (numerator >= 10 && numerator <= 500)
4160 ME_SetZoom(editor, numerator, 100);
4161 } else {
4162 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4163 /* FIXME follow the original */
4164 if (pulScrollLines)
4165 ME_ScrollDown(editor,pulScrollLines * (-gcWheelDelta / WHEEL_DELTA) * 8);
4166 }
4167 }
4168 break;
4169 }
4170 case EM_GETRECT:
4171 {
4172 *((RECT *)lParam) = editor->rcFormat;
4173 if (editor->bDefaultFormatRect)
4174 ((RECT *)lParam)->left -= editor->selofs;
4175 return 0;
4176 }
4177 case EM_SETRECT:
4178 case EM_SETRECTNP:
4179 {
4180 if (lParam)
4181 {
4182 int border = 0;
4183 RECT clientRect;
4184 RECT *rc = (RECT *)lParam;
4185
4186 border = editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
4187 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4188 if (wParam == 0)
4189 {
4190 editor->rcFormat.top = max(0, rc->top - border);
4191 editor->rcFormat.left = max(0, rc->left - border);
4192 editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
4193 editor->rcFormat.right = min(clientRect.right, rc->right + border);
4194 } else if (wParam == 1) {
4195 /* MSDN incorrectly says a wParam value of 1 causes the
4196 * lParam rect to be used as a relative offset,
4197 * however, the tests show it just prevents min/max bound
4198 * checking. */
4199 editor->rcFormat.top = rc->top - border;
4200 editor->rcFormat.left = rc->left - border;
4201 editor->rcFormat.bottom = rc->bottom;
4202 editor->rcFormat.right = rc->right + border;
4203 } else {
4204 return 0;
4205 }
4206 editor->bDefaultFormatRect = FALSE;
4207 }
4208 else
4209 {
4210 ME_SetDefaultFormatRect(editor);
4211 editor->bDefaultFormatRect = TRUE;
4212 }
4213 ME_MarkAllForWrapping(editor);
4214 ME_WrapMarkedParagraphs(editor);
4215 ME_UpdateScrollBar(editor);
4216 if (msg != EM_SETRECTNP)
4217 ME_Repaint(editor);
4218 return 0;
4219 }
4220 case EM_REQUESTRESIZE:
4221 ME_SendRequestResize(editor, TRUE);
4222 return 0;
4223 case WM_SETREDRAW:
4224 goto do_default;
4225 case WM_SIZE:
4226 {
4227 RECT clientRect;
4228
4229 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4230 if (editor->bDefaultFormatRect) {
4231 ME_SetDefaultFormatRect(editor);
4232 } else {
4233 editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
4234 editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
4235 }
4236 editor->prevClientRect = clientRect;
4237 ME_RewrapRepaint(editor);
4238 goto do_default;
4239 }
4240 /* IME messages to make richedit controls IME aware */
4241 case WM_IME_SETCONTEXT:
4242 case WM_IME_CONTROL:
4243 case WM_IME_SELECT:
4244 case WM_IME_COMPOSITIONFULL:
4245 return 0;
4246 case WM_IME_STARTCOMPOSITION:
4247 {
4248 editor->imeStartIndex=ME_GetCursorOfs(&editor->pCursors[0]);
4249 ME_DeleteSelection(editor);
4250 ME_CommitUndo(editor);
4251 ME_UpdateRepaint(editor, FALSE);
4252 return 0;
4253 }
4254 case WM_IME_COMPOSITION:
4255 {
4256 HIMC hIMC;
4257
4258 ME_Style *style = ME_GetInsertStyle(editor, 0);
4259 hIMC = ITextHost_TxImmGetContext(editor->texthost);
4260 ME_DeleteSelection(editor);
4261 ME_SaveTempStyle(editor);
4262 if (lParam & (GCS_RESULTSTR|GCS_COMPSTR))
4263 {
4264 LPWSTR lpCompStr = NULL;
4265 DWORD dwBufLen;
4266 DWORD dwIndex = lParam & GCS_RESULTSTR;
4267 if (!dwIndex)
4268 dwIndex = GCS_COMPSTR;
4269
4270 dwBufLen = ImmGetCompositionStringW(hIMC, dwIndex, NULL, 0);
4271 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4272 ImmGetCompositionStringW(hIMC, dwIndex, lpCompStr, dwBufLen);
4273 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4274 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4275 HeapFree(GetProcessHeap(), 0, lpCompStr);
4276
4277 if (dwIndex == GCS_COMPSTR)
4278 ME_SetSelection(editor,editor->imeStartIndex,
4279 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4280 }
4281 ME_ReleaseStyle(style);
4282 ME_CommitUndo(editor);
4283 ME_UpdateRepaint(editor, FALSE);
4284 return 0;
4285 }
4286 case WM_IME_ENDCOMPOSITION:
4287 {
4288 ME_DeleteSelection(editor);
4289 editor->imeStartIndex=-1;
4290 return 0;
4291 }
4292 case EM_GETOLEINTERFACE:
4293 {
4294 LPVOID *ppvObj = (LPVOID*) lParam;
4295 return CreateIRichEditOle(editor, ppvObj);
4296 }
4297 case EM_GETPASSWORDCHAR:
4298 {
4299 return editor->cPasswordMask;
4300 }
4301 case EM_SETOLECALLBACK:
4302 if(editor->lpOleCallback)
4303 IUnknown_Release(editor->lpOleCallback);
4304 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4305 if(editor->lpOleCallback)
4306 IUnknown_AddRef(editor->lpOleCallback);
4307 return TRUE;
4308 case EM_GETWORDBREAKPROC:
4309 return (LRESULT)editor->pfnWordBreak;
4310 case EM_SETWORDBREAKPROC:
4311 {
4312 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4313
4314 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4315 return (LRESULT)pfnOld;
4316 }
4317 case EM_GETTEXTMODE:
4318 return editor->mode;
4319 case EM_SETTEXTMODE:
4320 {
4321 int mask = 0;
4322 int changes = 0;
4323
4324 if (ME_GetTextLength(editor) || editor->pUndoStack || editor->pRedoStack)
4325 return E_UNEXPECTED;
4326
4327 /* Check for mutually exclusive flags in adjacent bits of wParam */
4328 if ((wParam & (TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE)) &
4329 (wParam & (TM_PLAINTEXT | TM_SINGLELEVELUNDO | TM_SINGLECODEPAGE)) << 1)
4330 return E_INVALIDARG;
4331
4332 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4333 {
4334 mask |= TM_RICHTEXT | TM_PLAINTEXT;
4335 changes |= wParam & (TM_RICHTEXT | TM_PLAINTEXT);
4336 if (wParam & TM_PLAINTEXT) {
4337 /* Clear selection since it should be possible to select the
4338 * end of text run for rich text */
4339 ME_InvalidateSelection(editor);
4340 ME_SetCursorToStart(editor, &editor->pCursors[0]);
4341 editor->pCursors[1] = editor->pCursors[0];
4342 /* plain text can only have the default style. */
4343 ME_ClearTempStyle(editor);
4344 ME_AddRefStyle(editor->pBuffer->pDefaultStyle);
4345 ME_ReleaseStyle(editor->pCursors[0].pRun->member.run.style);
4346 editor->pCursors[0].pRun->member.run.style = editor->pBuffer->pDefaultStyle;
4347 }
4348 }
4349 /* FIXME: Currently no support for undo level and code page options */
4350 editor->mode = (editor->mode & ~mask) | changes;
4351 return 0;
4352 }
4353 case EM_SETPASSWORDCHAR:
4354 {
4355 editor->cPasswordMask = wParam;
4356 ME_RewrapRepaint(editor);
4357 return 0;
4358 }
4359 case EM_SETTARGETDEVICE:
4360 if (wParam == 0)
4361 {
4362 BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
4363 if (editor->nAvailWidth || editor->bWordWrap != new)
4364 {
4365 editor->bWordWrap = new;
4366 editor->nAvailWidth = 0; /* wrap to client area */
4367 ME_RewrapRepaint(editor);
4368 }
4369 } else {
4370 int width = max(0, lParam);
4371 if ((editor->styleFlags & ES_MULTILINE) &&
4372 (!editor->bWordWrap || editor->nAvailWidth != width))
4373 {
4374 editor->nAvailWidth = width;
4375 editor->bWordWrap = TRUE;
4376 ME_RewrapRepaint(editor);
4377 }
4378 FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
4379 }
4380 return TRUE;
4381 default:
4382 do_default:
4383 *phresult = S_FALSE;
4384 break;
4385 }
4386 return 0L;
4387 }
4388
4389 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
4390 LPARAM lParam, BOOL unicode)
4391 {
4392 ME_TextEditor *editor;
4393 HRESULT hresult;
4394 LRESULT lresult = 0;
4395
4396 TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
4397 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
4398
4399 editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4400 if (!editor)
4401 {
4402 if (msg == WM_NCCREATE)
4403 {
4404 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4405 ITextHost *texthost;
4406
4407 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4408 texthost = ME_CreateTextHost(hWnd, pcs, FALSE);
4409 return texthost != NULL;
4410 }
4411 else
4412 {
4413 return DefWindowProcW(hWnd, msg, wParam, lParam);
4414 }
4415 }
4416
4417 switch (msg)
4418 {
4419 case WM_PAINT:
4420 {
4421 HDC hDC;
4422 RECT rc;
4423 PAINTSTRUCT ps;
4424
4425 hDC = BeginPaint(editor->hWnd, &ps);
4426 if (!editor->bEmulateVersion10 || (editor->nEventMask & ENM_UPDATE))
4427 ME_SendOldNotify(editor, EN_UPDATE);
4428 /* Erase area outside of the formatting rectangle */
4429 if (ps.rcPaint.top < editor->rcFormat.top)
4430 {
4431 rc = ps.rcPaint;
4432 rc.bottom = editor->rcFormat.top;
4433 FillRect(hDC, &rc, editor->hbrBackground);
4434 ps.rcPaint.top = editor->rcFormat.top;
4435 }
4436 if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
4437 rc = ps.rcPaint;
4438 rc.top = editor->rcFormat.bottom;
4439 FillRect(hDC, &rc, editor->hbrBackground);
4440 ps.rcPaint.bottom = editor->rcFormat.bottom;
4441 }
4442 if (ps.rcPaint.left < editor->rcFormat.left) {
4443 rc = ps.rcPaint;
4444 rc.right = editor->rcFormat.left;
4445 FillRect(hDC, &rc, editor->hbrBackground);
4446 ps.rcPaint.left = editor->rcFormat.left;
4447 }
4448 if (ps.rcPaint.right > editor->rcFormat.right) {
4449 rc = ps.rcPaint;
4450 rc.left = editor->rcFormat.right;
4451 FillRect(hDC, &rc, editor->hbrBackground);
4452 ps.rcPaint.right = editor->rcFormat.right;
4453 }
4454
4455 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
4456 EndPaint(editor->hWnd, &ps);
4457 return 0;
4458 }
4459 case WM_ERASEBKGND:
4460 {
4461 HDC hDC = (HDC)wParam;
4462 RECT rc;
4463
4464 if (GetUpdateRect(editor->hWnd, &rc, TRUE))
4465 FillRect(hDC, &rc, editor->hbrBackground);
4466 return 1;
4467 }
4468 case EM_SETOPTIONS:
4469 {
4470 DWORD dwStyle;
4471 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
4472 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
4473 ECO_SELECTIONBAR;
4474 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4475 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4476 dwStyle = (dwStyle & ~mask) | (lresult & mask);
4477 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4478 return lresult;
4479 }
4480 case EM_SETREADONLY:
4481 {
4482 DWORD dwStyle;
4483 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4484 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4485 dwStyle &= ~ES_READONLY;
4486 if (wParam)
4487 dwStyle |= ES_READONLY;
4488 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4489 return lresult;
4490 }
4491 default:
4492 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4493 }
4494
4495 if (hresult == S_FALSE)
4496 lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
4497
4498 TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
4499 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
4500
4501 return lresult;
4502 }
4503
4504 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4505 {
4506 BOOL unicode = TRUE;
4507
4508 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4509 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4510 unicode = FALSE;
4511
4512 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4513 }
4514
4515 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4516 {
4517 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4518 }
4519
4520 /******************************************************************
4521 * RichEditANSIWndProc (RICHED20.10)
4522 */
4523 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4524 {
4525 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4526 }
4527
4528 /******************************************************************
4529 * RichEdit10ANSIWndProc (RICHED20.9)
4530 */
4531 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4532 {
4533 if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
4534 {
4535 ITextHost *texthost;
4536 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4537
4538 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4539 texthost = ME_CreateTextHost(hWnd, pcs, TRUE);
4540 return texthost != NULL;
4541 }
4542 return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4543 }
4544
4545 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4546 {
4547 ITextHost_TxNotify(editor->texthost, nCode, NULL);
4548 }
4549
4550 /* Fill buffer with srcChars unicode characters from the start cursor.
4551 *
4552 * buffer: destination buffer
4553 * buflen: length of buffer in characters excluding the NULL terminator.
4554 * start: start of editor text to copy into buffer.
4555 * srcChars: Number of characters to use from the editor text.
4556 * bCRLF: if true, replaces all end of lines with \r\n pairs.
4557 *
4558 * returns the number of characters written excluding the NULL terminator.
4559 *
4560 * The written text is always NULL terminated.
4561 */
4562 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
4563 const ME_Cursor *start, int srcChars, BOOL bCRLF)
4564 {
4565 ME_DisplayItem *pRun, *pNextRun;
4566 const WCHAR *pStart = buffer;
4567 const WCHAR cr_lf[] = {'\r', '\n', 0};
4568 const WCHAR *str;
4569 int nLen;
4570
4571 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4572 if (editor->bEmulateVersion10) bCRLF = 0;
4573
4574 pRun = start->pRun;
4575 assert(pRun);
4576 pNextRun = ME_FindItemFwd(pRun, diRun);
4577
4578 nLen = pRun->member.run.strText->nLen - start->nOffset;
4579 str = pRun->member.run.strText->szData + start->nOffset;
4580
4581 /* No '\r' is appended to the last paragraph. */
4582 while (srcChars && buflen && pNextRun)
4583 {
4584 int nFlags = pRun->member.run.nFlags;
4585
4586 if (bCRLF && nFlags & MERF_ENDPARA && ~nFlags & MERF_ENDCELL)
4587 {
4588 if (buflen == 1) break;
4589 /* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
4590 * EM_GETTEXTEX, however, this is done for copying text which
4591 * also uses this function. */
4592 srcChars -= min(nLen, srcChars);
4593 nLen = 2;
4594 str = cr_lf;
4595 } else {
4596 nLen = min(nLen, srcChars);
4597 srcChars -= nLen;
4598 }
4599
4600 nLen = min(nLen, buflen);
4601 buflen -= nLen;
4602
4603 CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
4604
4605 buffer += nLen;
4606
4607 pRun = pNextRun;
4608 pNextRun = ME_FindItemFwd(pRun, diRun);
4609
4610 nLen = pRun->member.run.strText->nLen;
4611 str = pRun->member.run.strText->szData;
4612 }
4613 *buffer = 0;
4614 return buffer - pStart;
4615 }
4616
4617 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4618 {
4619 WNDCLASSW wcW;
4620 WNDCLASSA wcA;
4621
4622 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4623 wcW.lpfnWndProc = RichEditWndProcW;
4624 wcW.cbClsExtra = 0;
4625 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4626 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4627 wcW.hIcon = NULL;
4628 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4629 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4630 wcW.lpszMenuName = NULL;
4631
4632 if (is_version_nt())
4633 {
4634 wcW.lpszClassName = RICHEDIT_CLASS20W;
4635 if (!RegisterClassW(&wcW)) return FALSE;
4636 wcW.lpszClassName = MSFTEDIT_CLASS;
4637 if (!RegisterClassW(&wcW)) return FALSE;
4638 }
4639 else
4640 {
4641 /* WNDCLASSA/W have the same layout */
4642 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4643 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4644 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4645 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4646 }
4647
4648 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4649 wcA.lpfnWndProc = RichEditWndProcA;
4650 wcA.cbClsExtra = 0;
4651 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4652 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4653 wcA.hIcon = NULL;
4654 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4655 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4656 wcA.lpszMenuName = NULL;
4657 wcA.lpszClassName = RICHEDIT_CLASS20A;
4658 if (!RegisterClassA(&wcA)) return FALSE;
4659 wcA.lpszClassName = "RichEdit50A";
4660 if (!RegisterClassA(&wcA)) return FALSE;
4661
4662 return TRUE;
4663 }
4664
4665 static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4666 /* FIXME: Not implemented */
4667 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4668 hWnd, msg, get_msg_name(msg), wParam, lParam);
4669 return DefWindowProcW(hWnd, msg, wParam, lParam);
4670 }
4671
4672 static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4673 /* FIXME: Not implemented */
4674 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4675 hWnd, msg, get_msg_name(msg), wParam, lParam);
4676 return DefWindowProcW(hWnd, msg, wParam, lParam);
4677 }
4678
4679 /******************************************************************
4680 * REExtendedRegisterClass (RICHED20.8)
4681 *
4682 * FIXME undocumented
4683 * Need to check for errors and implement controls and callbacks
4684 */
4685 LRESULT WINAPI REExtendedRegisterClass(void)
4686 {
4687 WNDCLASSW wcW;
4688 UINT result;
4689
4690 FIXME("semi stub\n");
4691
4692 wcW.cbClsExtra = 0;
4693 wcW.cbWndExtra = 4;
4694 wcW.hInstance = NULL;
4695 wcW.hIcon = NULL;
4696 wcW.hCursor = NULL;
4697 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4698 wcW.lpszMenuName = NULL;
4699
4700 if (!ME_ListBoxRegistered)
4701 {
4702 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4703 wcW.lpfnWndProc = REListWndProc;
4704 wcW.lpszClassName = REListBox20W;
4705 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4706 }
4707
4708 if (!ME_ComboBoxRegistered)
4709 {
4710 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4711 wcW.lpfnWndProc = REComboWndProc;
4712 wcW.lpszClassName = REComboBox20W;
4713 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4714 }
4715
4716 result = 0;
4717 if (ME_ListBoxRegistered)
4718 result += 1;
4719 if (ME_ComboBoxRegistered)
4720 result += 2;
4721
4722 return result;
4723 }
4724
4725 static BOOL isurlspecial(WCHAR c)
4726 {
4727 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4728 return strchrW( special_chars, c ) != NULL;
4729 }
4730
4731 /**
4732 * This proc takes a selection, and scans it forward in order to select the span
4733 * of a possible URL candidate. A possible URL candidate must start with isalnum
4734 * or one of the following special characters: *|/\+%#@ and must consist entirely
4735 * of the characters allowed to start the URL, plus : (colon) which may occur
4736 * at most once, and not at either end.
4737 */
4738 static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
4739 const ME_Cursor *start,
4740 int nChars,
4741 ME_Cursor *candidate_min,
4742 ME_Cursor *candidate_max)
4743 {
4744 ME_Cursor cursor = *start;
4745 BOOL foundColon = FALSE;
4746 BOOL candidateStarted = FALSE;
4747 WCHAR lastAcceptedChar = '\0';
4748
4749 while (nChars > 0)
4750 {
4751 WCHAR *strStart = cursor.pRun->member.run.strText->szData;
4752 WCHAR *str = strStart + cursor.nOffset;
4753 int nLen = cursor.pRun->member.run.strText->nLen - cursor.nOffset;
4754 nChars -= nLen;
4755
4756 if (~cursor.pRun->member.run.nFlags & MERF_ENDPARA)
4757 {
4758 /* Find start of candidate */
4759 if (!candidateStarted)
4760 {
4761 while (nLen)
4762 {
4763 nLen--;
4764 if (isalnumW(*str) || isurlspecial(*str))
4765 {
4766 cursor.nOffset = str - strStart;
4767 *candidate_min = cursor;
4768 candidateStarted = TRUE;
4769 lastAcceptedChar = *str++;
4770 break;
4771 }
4772 str++;
4773 }
4774 }
4775
4776 /* Find end of candidate */
4777 if (candidateStarted) {
4778 while (nLen)
4779 {
4780 nLen--;
4781 if (*str == ':' && !foundColon) {
4782 foundColon = TRUE;
4783 } else if (!isalnumW(*str) && !isurlspecial(*str)) {
4784 cursor.nOffset = str - strStart;
4785 if (lastAcceptedChar == ':')
4786 ME_MoveCursorChars(editor, &cursor, -1);
4787 *candidate_max = cursor;
4788 return TRUE;
4789 }
4790 lastAcceptedChar = *str++;
4791 }
4792 }
4793 } else {
4794 /* End of paragraph: skip it if before candidate span, or terminates
4795 current active span */
4796 if (candidateStarted) {
4797 if (lastAcceptedChar == ':')
4798 ME_MoveCursorChars(editor, &cursor, -1);
4799 *candidate_max = cursor;
4800 return TRUE;
4801 }
4802 }
4803
4804 /* Reaching this point means no span was found, so get next span */
4805 if (!ME_NextRun(&cursor.pPara, &cursor.pRun)) {
4806 if (candidateStarted) {
4807 /* There are no further runs, so take end of text as end of candidate */
4808 cursor.nOffset = str - strStart;
4809 if (lastAcceptedChar == ':')
4810 ME_MoveCursorChars(editor, &cursor, -1);
4811 *candidate_max = cursor;
4812 return TRUE;
4813 }
4814 *candidate_max = *candidate_min = cursor;
4815 return FALSE;
4816 }
4817 cursor.nOffset = 0;
4818 }
4819
4820 if (candidateStarted) {
4821 /* There are no further runs, so take end of text as end of candidate */
4822 if (lastAcceptedChar == ':')
4823 ME_MoveCursorChars(editor, &cursor, -1);
4824 *candidate_max = cursor;
4825 return TRUE;
4826 }
4827 *candidate_max = *candidate_min = cursor;
4828 return FALSE;
4829 }
4830
4831 /**
4832 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4833 */
4834 static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
4835 {
4836 #define MAX_PREFIX_LEN 9
4837 struct prefix_s {
4838 const WCHAR text[MAX_PREFIX_LEN];
4839 int length;
4840 }prefixes[] = {
4841 {{'p','r','o','s','p','e','r','o',':'}, 9},
4842 {{'t','e','l','n','e','t',':'}, 7},
4843 {{'g','o','p','h','e','r',':'}, 7},
4844 {{'m','a','i','l','t','o',':'}, 7},
4845 {{'h','t','t','p','s',':'}, 6},
4846 {{'f','i','l','e',':'}, 5},
4847 {{'n','e','w','s',':'}, 5},
4848 {{'w','a','i','s',':'}, 5},
4849 {{'n','n','t','p',':'}, 5},
4850 {{'h','t','t','p',':'}, 5},
4851 {{'w','w','w','.'}, 4},
4852 {{'f','t','p',':'}, 4},
4853 };
4854 WCHAR bufferW[MAX_PREFIX_LEN + 1];
4855 unsigned int i;
4856
4857 ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, 0);
4858 for (i = 0; i < sizeof(prefixes) / sizeof(*prefixes); i++)
4859 {
4860 if (nChars < prefixes[i].length) continue;
4861 if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
4862 return TRUE;
4863 }
4864 return FALSE;
4865 #undef MAX_PREFIX_LEN
4866 }
4867
4868 /**
4869 * This proc walks through the indicated selection and evaluates whether each
4870 * section identified by ME_FindNextURLCandidate and in-between sections have
4871 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4872 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4873 *
4874 * Since this function can cause runs to be split, do not depend on the value
4875 * of the start cursor at the end of the function.
4876 *
4877 * nChars may be set to INT_MAX to update to the end of the text.
4878 *
4879 * Returns TRUE if at least one section was modified.
4880 */
4881 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
4882 {
4883 BOOL modified = FALSE;
4884 ME_Cursor startCur = *start;
4885
4886 if (!editor->AutoURLDetect_bEnable) return FALSE;
4887
4888 do
4889 {
4890 CHARFORMAT2W link;
4891 ME_Cursor candidateStart, candidateEnd;
4892
4893 if (ME_FindNextURLCandidate(editor, &startCur, nChars,
4894 &candidateStart, &candidateEnd))
4895 {
4896 /* Section before candidate is not an URL */
4897 int cMin = ME_GetCursorOfs(&candidateStart);
4898 int cMax = ME_GetCursorOfs(&candidateEnd);
4899
4900 if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
4901 candidateStart = candidateEnd;
4902 nChars -= cMax - ME_GetCursorOfs(&startCur);
4903 }
4904 else
4905 {
4906 /* No more candidates until end of selection */
4907 nChars = 0;
4908 }
4909
4910 if (startCur.pRun != candidateStart.pRun ||
4911 startCur.nOffset != candidateStart.nOffset)
4912 {
4913 /* CFE_LINK effect should be consistently unset */
4914 link.cbSize = sizeof(link);
4915 ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
4916 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4917 {
4918 /* CFE_LINK must be unset from this range */
4919 memset(&link, 0, sizeof(CHARFORMAT2W));
4920 link.cbSize = sizeof(link);
4921 link.dwMask = CFM_LINK;
4922 link.dwEffects = 0;
4923 ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
4924 /* Update candidateEnd since setting character formats may split
4925 * runs, which can cause a cursor to be at an invalid offset within
4926 * a split run. */
4927 while (candidateEnd.nOffset >= candidateEnd.pRun->member.run.strText->nLen)
4928 {
4929 candidateEnd.nOffset -= candidateEnd.pRun->member.run.strText->nLen;
4930 candidateEnd.pRun = ME_FindItemFwd(candidateEnd.pRun, diRun);
4931 }
4932 modified = TRUE;
4933 }
4934 }
4935 if (candidateStart.pRun != candidateEnd.pRun ||
4936 candidateStart.nOffset != candidateEnd.nOffset)
4937 {
4938 /* CFE_LINK effect should be consistently set */
4939 link.cbSize = sizeof(link);
4940 ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4941 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4942 {
4943 /* CFE_LINK must be set on this range */
4944 memset(&link, 0, sizeof(CHARFORMAT2W));
4945 link.cbSize = sizeof(link);
4946 link.dwMask = CFM_LINK;
4947 link.dwEffects = CFE_LINK;
4948 ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4949 modified = TRUE;
4950 }
4951 }
4952 startCur = candidateEnd;
4953 } while (nChars > 0);
4954 return modified;
4955 }
Maarten's multimedia branch