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mshtml: Don't use necko nsIHttpChannelInternal implementation in nsChannel object.
[wine/hacks.git] / dlls / riched20 / editor.c
blob2ae4f94c623a1b98761c2477c45207c20a9e83a0
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 ME_CommitUndo(editor);
321 ME_UpdateRepaint(editor);
322 return 0;
323 }
324
325 static void ME_ApplyBorderProperties(RTF_Info *info,
326 ME_BorderRect *borderRect,
327 RTFBorder *borderDef)
328 {
329 int i, colorNum;
330 ME_Border *pBorders[] = {&borderRect->top,
331 &borderRect->left,
332 &borderRect->bottom,
333 &borderRect->right};
334 for (i = 0; i < 4; i++)
335 {
336 RTFColor *colorDef = info->colorList;
337 pBorders[i]->width = borderDef[i].width;
338 colorNum = borderDef[i].color;
339 while (colorDef && colorDef->rtfCNum != colorNum)
340 colorDef = colorDef->rtfNextColor;
341 if (colorDef)
342 pBorders[i]->colorRef = RGB(
343 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
344 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
345 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
346 else
347 pBorders[i]->colorRef = RGB(0, 0, 0);
348 }
349 }
350
351 void ME_RTFCharAttrHook(RTF_Info *info)
352 {
353 CHARFORMAT2W fmt;
354 fmt.cbSize = sizeof(fmt);
355 fmt.dwMask = 0;
356 fmt.dwEffects = 0;
357
358 switch(info->rtfMinor)
359 {
360 case rtfPlain:
361 /* FIXME add more flags once they're implemented */
362 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
363 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
364 fmt.yHeight = 12*20; /* 12pt */
365 fmt.wWeight = FW_NORMAL;
366 fmt.bUnderlineType = CFU_UNDERLINENONE;
367 break;
368 case rtfBold:
369 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
370 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
371 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
372 break;
373 case rtfItalic:
374 fmt.dwMask = CFM_ITALIC;
375 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
376 break;
377 case rtfUnderline:
378 fmt.dwMask = CFM_UNDERLINETYPE;
379 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
380 break;
381 case rtfDotUnderline:
382 fmt.dwMask = CFM_UNDERLINETYPE;
383 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
384 break;
385 case rtfDbUnderline:
386 fmt.dwMask = CFM_UNDERLINETYPE;
387 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
388 break;
389 case rtfWordUnderline:
390 fmt.dwMask = CFM_UNDERLINETYPE;
391 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
392 break;
393 case rtfNoUnderline:
394 fmt.dwMask = CFM_UNDERLINETYPE;
395 fmt.bUnderlineType = CFU_UNDERLINENONE;
396 break;
397 case rtfStrikeThru:
398 fmt.dwMask = CFM_STRIKEOUT;
399 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
400 break;
401 case rtfSubScript:
402 case rtfSuperScript:
403 case rtfSubScrShrink:
404 case rtfSuperScrShrink:
405 case rtfNoSuperSub:
406 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
407 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
408 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
409 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
410 break;
411 case rtfInvisible:
412 fmt.dwMask = CFM_HIDDEN;
413 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
414 break;
415 case rtfBackColor:
416 fmt.dwMask = CFM_BACKCOLOR;
417 fmt.dwEffects = 0;
418 if (info->rtfParam == 0)
419 fmt.dwEffects = CFE_AUTOBACKCOLOR;
420 else if (info->rtfParam != rtfNoParam)
421 {
422 RTFColor *c = RTFGetColor(info, info->rtfParam);
423 if (c && c->rtfCBlue >= 0)
424 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
425 else
426 fmt.dwEffects = CFE_AUTOBACKCOLOR;
427 }
428 break;
429 case rtfForeColor:
430 fmt.dwMask = CFM_COLOR;
431 fmt.dwEffects = 0;
432 if (info->rtfParam == 0)
433 fmt.dwEffects = CFE_AUTOCOLOR;
434 else if (info->rtfParam != rtfNoParam)
435 {
436 RTFColor *c = RTFGetColor(info, info->rtfParam);
437 if (c && c->rtfCBlue >= 0)
438 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
439 else {
440 fmt.dwEffects = CFE_AUTOCOLOR;
441 }
442 }
443 break;
444 case rtfFontNum:
445 if (info->rtfParam != rtfNoParam)
446 {
447 RTFFont *f = RTFGetFont(info, info->rtfParam);
448 if (f)
449 {
450 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
451 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
452 fmt.bCharSet = f->rtfFCharSet;
453 fmt.dwMask = CFM_FACE | CFM_CHARSET;
454 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
455 }
456 }
457 break;
458 case rtfFontSize:
459 fmt.dwMask = CFM_SIZE;
460 if (info->rtfParam != rtfNoParam)
461 fmt.yHeight = info->rtfParam*10;
462 break;
463 }
464 if (fmt.dwMask) {
465 ME_Style *style2;
466 RTFFlushOutputBuffer(info);
467 /* FIXME too slow ? how come ? */
468 style2 = ME_ApplyStyle(info->style, &fmt);
469 ME_ReleaseStyle(info->style);
470 info->style = style2;
471 info->styleChanged = TRUE;
472 }
473 }
474
475 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
476 the same tags mean different things in different contexts */
477 void ME_RTFParAttrHook(RTF_Info *info)
478 {
479 PARAFORMAT2 fmt;
480 fmt.cbSize = sizeof(fmt);
481 fmt.dwMask = 0;
482
483 switch(info->rtfMinor)
484 {
485 case rtfParDef: /* restores default paragraph attributes */
486 if (!info->editor->bEmulateVersion10) /* v4.1 */
487 info->borderType = RTFBorderParaLeft;
488 else /* v1.0 - 3.0 */
489 info->borderType = RTFBorderParaTop;
490 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
491 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
492 PFM_STARTINDENT;
493 /* TODO: numbering, shading */
494 fmt.wAlignment = PFA_LEFT;
495 fmt.cTabCount = 0;
496 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
497 fmt.wBorderWidth = fmt.wBorders = 0;
498 fmt.wBorderSpace = 0;
499 fmt.bLineSpacingRule = 0;
500 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
501 fmt.dyLineSpacing = 0;
502 if (!info->editor->bEmulateVersion10) /* v4.1 */
503 {
504 if (info->tableDef && info->tableDef->tableRowStart &&
505 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
506 {
507 ME_Cursor cursor;
508 ME_DisplayItem *para;
509 /* We are just after a table row. */
510 RTFFlushOutputBuffer(info);
511 cursor = info->editor->pCursors[0];
512 para = cursor.pPara;
513 if (para == info->tableDef->tableRowStart->member.para.next_para
514 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
515 {
516 /* Since the table row end, no text has been inserted, and the \intbl
517 * control word has not be used. We can confirm that we are not in a
518 * table anymore.
519 */
520 info->tableDef->tableRowStart = NULL;
521 info->canInheritInTbl = FALSE;
522 }
523 }
524 } else { /* v1.0 - v3.0 */
525 fmt.dwMask |= PFM_TABLE;
526 fmt.wEffects &= ~PFE_TABLE;
527 }
528 break;
529 case rtfNestLevel:
530 if (!info->editor->bEmulateVersion10) /* v4.1 */
531 {
532 while (info->rtfParam > info->nestingLevel) {
533 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
534 ZeroMemory(tableDef, sizeof(RTFTable));
535 tableDef->parent = info->tableDef;
536 info->tableDef = tableDef;
537
538 RTFFlushOutputBuffer(info);
539 if (tableDef->tableRowStart &&
540 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
541 {
542 ME_DisplayItem *para = tableDef->tableRowStart;
543 para = para->member.para.next_para;
544 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
545 tableDef->tableRowStart = para;
546 } else {
547 ME_Cursor cursor;
548 WCHAR endl = '\r';
549 cursor = info->editor->pCursors[0];
550 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
551 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
552 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
553 }
554
555 info->nestingLevel++;
556 }
557 info->canInheritInTbl = FALSE;
558 }
559 break;
560 case rtfInTable:
561 {
562 if (!info->editor->bEmulateVersion10) /* v4.1 */
563 {
564 if (info->nestingLevel < 1)
565 {
566 RTFTable *tableDef;
567 if (!info->tableDef)
568 {
569 info->tableDef = ALLOC_OBJ(RTFTable);
570 ZeroMemory(info->tableDef, sizeof(RTFTable));
571 }
572 tableDef = info->tableDef;
573 RTFFlushOutputBuffer(info);
574 if (tableDef->tableRowStart &&
575 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
576 {
577 ME_DisplayItem *para = tableDef->tableRowStart;
578 para = para->member.para.next_para;
579 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
580 tableDef->tableRowStart = para;
581 } else {
582 ME_Cursor cursor;
583 WCHAR endl = '\r';
584 cursor = info->editor->pCursors[0];
585 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
586 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
587 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
588 }
589 info->nestingLevel = 1;
590 info->canInheritInTbl = TRUE;
591 }
592 return;
593 } else { /* v1.0 - v3.0 */
594 fmt.dwMask |= PFM_TABLE;
595 fmt.wEffects |= PFE_TABLE;
596 }
597 break;
598 }
599 case rtfFirstIndent:
600 ME_GetSelectionParaFormat(info->editor, &fmt);
601 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
602 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
603 fmt.dxOffset = -info->rtfParam;
604 break;
605 case rtfLeftIndent:
606 ME_GetSelectionParaFormat(info->editor, &fmt);
607 fmt.dwMask = PFM_STARTINDENT;
608 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
609 break;
610 case rtfRightIndent:
611 fmt.dwMask = PFM_RIGHTINDENT;
612 fmt.dxRightIndent = info->rtfParam;
613 break;
614 case rtfQuadLeft:
615 case rtfQuadJust:
616 fmt.dwMask = PFM_ALIGNMENT;
617 fmt.wAlignment = PFA_LEFT;
618 break;
619 case rtfQuadRight:
620 fmt.dwMask = PFM_ALIGNMENT;
621 fmt.wAlignment = PFA_RIGHT;
622 break;
623 case rtfQuadCenter:
624 fmt.dwMask = PFM_ALIGNMENT;
625 fmt.wAlignment = PFA_CENTER;
626 break;
627 case rtfTabPos:
628 ME_GetSelectionParaFormat(info->editor, &fmt);
629 if (!(fmt.dwMask & PFM_TABSTOPS))
630 {
631 fmt.cTabCount = 0;
632 }
633 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
634 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
635 fmt.dwMask = PFM_TABSTOPS;
636 break;
637 case rtfKeep:
638 fmt.dwMask = PFM_KEEP;
639 fmt.wEffects = PFE_KEEP;
640 break;
641 case rtfNoWidowControl:
642 fmt.dwMask = PFM_NOWIDOWCONTROL;
643 fmt.wEffects = PFE_NOWIDOWCONTROL;
644 break;
645 case rtfKeepNext:
646 fmt.dwMask = PFM_KEEPNEXT;
647 fmt.wEffects = PFE_KEEPNEXT;
648 break;
649 case rtfSpaceAfter:
650 fmt.dwMask = PFM_SPACEAFTER;
651 fmt.dySpaceAfter = info->rtfParam;
652 break;
653 case rtfSpaceBefore:
654 fmt.dwMask = PFM_SPACEBEFORE;
655 fmt.dySpaceBefore = info->rtfParam;
656 break;
657 case rtfSpaceBetween:
658 fmt.dwMask = PFM_LINESPACING;
659 if ((int)info->rtfParam > 0)
660 {
661 fmt.dyLineSpacing = info->rtfParam;
662 fmt.bLineSpacingRule = 3;
663 }
664 else
665 {
666 fmt.dyLineSpacing = info->rtfParam;
667 fmt.bLineSpacingRule = 4;
668 }
669 case rtfSpaceMultiply:
670 fmt.dwMask = PFM_LINESPACING;
671 fmt.dyLineSpacing = info->rtfParam * 20;
672 fmt.bLineSpacingRule = 5;
673 break;
674 case rtfParBullet:
675 fmt.dwMask = PFM_NUMBERING;
676 fmt.wNumbering = PFN_BULLET;
677 break;
678 case rtfParSimple:
679 fmt.dwMask = PFM_NUMBERING;
680 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
681 break;
682 case rtfParNumDecimal:
683 fmt.dwMask = PFM_NUMBERING;
684 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
685 break;
686 case rtfParNumIndent:
687 fmt.dwMask = PFM_NUMBERINGTAB;
688 fmt.wNumberingTab = info->rtfParam;
689 break;
690 case rtfParNumStartAt:
691 fmt.dwMask = PFM_NUMBERINGSTART;
692 fmt.wNumberingStart = info->rtfParam;
693 break;
694 case rtfBorderLeft:
695 info->borderType = RTFBorderParaLeft;
696 ME_GetSelectionParaFormat(info->editor, &fmt);
697 if (!(fmt.dwMask & PFM_BORDER))
698 {
699 fmt.wBorderSpace = 0;
700 fmt.wBorderWidth = 1;
701 fmt.wBorders = 0;
702 }
703 fmt.wBorders |= 1;
704 fmt.dwMask = PFM_BORDER;
705 break;
706 case rtfBorderRight:
707 info->borderType = RTFBorderParaRight;
708 ME_GetSelectionParaFormat(info->editor, &fmt);
709 if (!(fmt.dwMask & PFM_BORDER))
710 {
711 fmt.wBorderSpace = 0;
712 fmt.wBorderWidth = 1;
713 fmt.wBorders = 0;
714 }
715 fmt.wBorders |= 2;
716 fmt.dwMask = PFM_BORDER;
717 break;
718 case rtfBorderTop:
719 info->borderType = RTFBorderParaTop;
720 ME_GetSelectionParaFormat(info->editor, &fmt);
721 if (!(fmt.dwMask & PFM_BORDER))
722 {
723 fmt.wBorderSpace = 0;
724 fmt.wBorderWidth = 1;
725 fmt.wBorders = 0;
726 }
727 fmt.wBorders |= 4;
728 fmt.dwMask = PFM_BORDER;
729 break;
730 case rtfBorderBottom:
731 info->borderType = RTFBorderParaBottom;
732 ME_GetSelectionParaFormat(info->editor, &fmt);
733 if (!(fmt.dwMask & PFM_BORDER))
734 {
735 fmt.wBorderSpace = 0;
736 fmt.wBorderWidth = 1;
737 fmt.wBorders = 0;
738 }
739 fmt.wBorders |= 8;
740 fmt.dwMask = PFM_BORDER;
741 break;
742 case rtfBorderSingle:
743 ME_GetSelectionParaFormat(info->editor, &fmt);
744 /* we assume that borders have been created before (RTF spec) */
745 fmt.wBorders &= ~0x700;
746 fmt.wBorders |= 1 << 8;
747 fmt.dwMask = PFM_BORDER;
748 break;
749 case rtfBorderThick:
750 ME_GetSelectionParaFormat(info->editor, &fmt);
751 /* we assume that borders have been created before (RTF spec) */
752 fmt.wBorders &= ~0x700;
753 fmt.wBorders |= 2 << 8;
754 fmt.dwMask = PFM_BORDER;
755 break;
756 case rtfBorderShadow:
757 ME_GetSelectionParaFormat(info->editor, &fmt);
758 /* we assume that borders have been created before (RTF spec) */
759 fmt.wBorders &= ~0x700;
760 fmt.wBorders |= 10 << 8;
761 fmt.dwMask = PFM_BORDER;
762 break;
763 case rtfBorderDouble:
764 ME_GetSelectionParaFormat(info->editor, &fmt);
765 /* we assume that borders have been created before (RTF spec) */
766 fmt.wBorders &= ~0x700;
767 fmt.wBorders |= 7 << 8;
768 fmt.dwMask = PFM_BORDER;
769 break;
770 case rtfBorderDot:
771 ME_GetSelectionParaFormat(info->editor, &fmt);
772 /* we assume that borders have been created before (RTF spec) */
773 fmt.wBorders &= ~0x700;
774 fmt.wBorders |= 11 << 8;
775 fmt.dwMask = PFM_BORDER;
776 break;
777 case rtfBorderWidth:
778 {
779 int borderSide = info->borderType & RTFBorderSideMask;
780 RTFTable *tableDef = info->tableDef;
781 ME_GetSelectionParaFormat(info->editor, &fmt);
782 /* we assume that borders have been created before (RTF spec) */
783 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
784 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
785 {
786 RTFBorder *border;
787 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
788 break;
789 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
790 border->width = info->rtfParam;
791 break;
792 }
793 fmt.dwMask = PFM_BORDER;
794 break;
795 }
796 case rtfBorderSpace:
797 ME_GetSelectionParaFormat(info->editor, &fmt);
798 /* we assume that borders have been created before (RTF spec) */
799 fmt.wBorderSpace = info->rtfParam;
800 fmt.dwMask = PFM_BORDER;
801 break;
802 case rtfBorderColor:
803 {
804 RTFTable *tableDef = info->tableDef;
805 int borderSide = info->borderType & RTFBorderSideMask;
806 int borderType = info->borderType & RTFBorderTypeMask;
807 switch(borderType)
808 {
809 case RTFBorderTypePara:
810 if (!info->editor->bEmulateVersion10) /* v4.1 */
811 break;
812 /* v1.0 - 3.0 treat paragraph and row borders the same. */
813 case RTFBorderTypeRow:
814 if (tableDef) {
815 tableDef->border[borderSide].color = info->rtfParam;
816 }
817 break;
818 case RTFBorderTypeCell:
819 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
820 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
821 }
822 break;
823 }
824 break;
825 }
826 }
827 if (fmt.dwMask) {
828 RTFFlushOutputBuffer(info);
829 /* FIXME too slow ? how come ?*/
830 ME_SetSelectionParaFormat(info->editor, &fmt);
831 }
832 }
833
834 void ME_RTFTblAttrHook(RTF_Info *info)
835 {
836 switch (info->rtfMinor)
837 {
838 case rtfRowDef:
839 {
840 if (!info->editor->bEmulateVersion10) /* v4.1 */
841 info->borderType = 0; /* Not sure */
842 else /* v1.0 - 3.0 */
843 info->borderType = RTFBorderRowTop;
844 if (!info->tableDef) {
845 info->tableDef = ME_MakeTableDef(info->editor);
846 } else {
847 ME_InitTableDef(info->editor, info->tableDef);
848 }
849 break;
850 }
851 case rtfCellPos:
852 {
853 int cellNum;
854 if (!info->tableDef)
855 {
856 info->tableDef = ME_MakeTableDef(info->editor);
857 }
858 cellNum = info->tableDef->numCellsDefined;
859 if (cellNum >= MAX_TABLE_CELLS)
860 break;
861 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
862 if (cellNum < MAX_TAB_STOPS) {
863 /* Tab stops were used to store cell positions before v4.1 but v4.1
864 * still seems to set the tabstops without using them. */
865 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
866 PARAFORMAT2 *pFmt = para->member.para.pFmt;
867 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
868 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
869 }
870 info->tableDef->numCellsDefined++;
871 break;
872 }
873 case rtfRowBordTop:
874 info->borderType = RTFBorderRowTop;
875 break;
876 case rtfRowBordLeft:
877 info->borderType = RTFBorderRowLeft;
878 break;
879 case rtfRowBordBottom:
880 info->borderType = RTFBorderRowBottom;
881 break;
882 case rtfRowBordRight:
883 info->borderType = RTFBorderRowRight;
884 break;
885 case rtfCellBordTop:
886 info->borderType = RTFBorderCellTop;
887 break;
888 case rtfCellBordLeft:
889 info->borderType = RTFBorderCellLeft;
890 break;
891 case rtfCellBordBottom:
892 info->borderType = RTFBorderCellBottom;
893 break;
894 case rtfCellBordRight:
895 info->borderType = RTFBorderCellRight;
896 break;
897 case rtfRowGapH:
898 if (info->tableDef)
899 info->tableDef->gapH = info->rtfParam;
900 break;
901 case rtfRowLeftEdge:
902 if (info->tableDef)
903 info->tableDef->leftEdge = info->rtfParam;
904 break;
905 }
906 }
907
908 void ME_RTFSpecialCharHook(RTF_Info *info)
909 {
910 RTFTable *tableDef = info->tableDef;
911 switch (info->rtfMinor)
912 {
913 case rtfNestCell:
914 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
915 break;
916 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
917 case rtfCell:
918 if (!tableDef)
919 break;
920 RTFFlushOutputBuffer(info);
921 if (!info->editor->bEmulateVersion10) { /* v4.1 */
922 if (tableDef->tableRowStart)
923 {
924 if (!info->nestingLevel &&
925 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
926 {
927 ME_DisplayItem *para = tableDef->tableRowStart;
928 para = para->member.para.next_para;
929 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
930 tableDef->tableRowStart = para;
931 info->nestingLevel = 1;
932 }
933 ME_InsertTableCellFromCursor(info->editor);
934 }
935 } else { /* v1.0 - v3.0 */
936 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
937 PARAFORMAT2 *pFmt = para->member.para.pFmt;
938 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
939 tableDef->numCellsInserted < tableDef->numCellsDefined)
940 {
941 WCHAR tab = '\t';
942 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
943 tableDef->numCellsInserted++;
944 }
945 }
946 break;
947 case rtfNestRow:
948 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
949 break;
950 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
951 case rtfRow:
952 {
953 ME_DisplayItem *para, *cell, *run;
954 int i;
955
956 if (!tableDef)
957 break;
958 RTFFlushOutputBuffer(info);
959 if (!info->editor->bEmulateVersion10) { /* v4.1 */
960 if (!tableDef->tableRowStart)
961 break;
962 if (!info->nestingLevel &&
963 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
964 {
965 para = tableDef->tableRowStart;
966 para = para->member.para.next_para;
967 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
968 tableDef->tableRowStart = para;
969 info->nestingLevel++;
970 }
971 para = tableDef->tableRowStart;
972 cell = ME_FindItemFwd(para, diCell);
973 assert(cell && !cell->member.cell.prev_cell);
974 if (tableDef->numCellsDefined < 1)
975 {
976 /* 2000 twips appears to be the cell size that native richedit uses
977 * when no cell sizes are specified. */
978 const int defaultCellSize = 2000;
979 int nRightBoundary = defaultCellSize;
980 cell->member.cell.nRightBoundary = nRightBoundary;
981 while (cell->member.cell.next_cell) {
982 cell = cell->member.cell.next_cell;
983 nRightBoundary += defaultCellSize;
984 cell->member.cell.nRightBoundary = nRightBoundary;
985 }
986 para = ME_InsertTableCellFromCursor(info->editor);
987 cell = para->member.para.pCell;
988 cell->member.cell.nRightBoundary = nRightBoundary;
989 } else {
990 for (i = 0; i < tableDef->numCellsDefined; i++)
991 {
992 RTFCell *cellDef = &tableDef->cells[i];
993 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
994 ME_ApplyBorderProperties(info, &cell->member.cell.border,
995 cellDef->border);
996 cell = cell->member.cell.next_cell;
997 if (!cell)
998 {
999 para = ME_InsertTableCellFromCursor(info->editor);
1000 cell = para->member.para.pCell;
1001 }
1002 }
1003 /* Cell for table row delimiter is empty */
1004 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1005 }
1006
1007 run = ME_FindItemFwd(cell, diRun);
1008 if (info->editor->pCursors[0].pRun != run ||
1009 info->editor->pCursors[0].nOffset)
1010 {
1011 int nOfs, nChars;
1012 /* Delete inserted cells that aren't defined. */
1013 info->editor->pCursors[1].pRun = run;
1014 info->editor->pCursors[1].pPara = ME_GetParagraph(run);
1015 info->editor->pCursors[1].nOffset = 0;
1016 nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
1017 nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
1018 ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
1019 nChars, TRUE);
1020 }
1021
1022 para = ME_InsertTableRowEndFromCursor(info->editor);
1023 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1024 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1025 ME_ApplyBorderProperties(info, &para->member.para.border,
1026 tableDef->border);
1027 info->nestingLevel--;
1028 if (!info->nestingLevel)
1029 {
1030 if (info->canInheritInTbl) {
1031 tableDef->tableRowStart = para;
1032 } else {
1033 while (info->tableDef) {
1034 tableDef = info->tableDef;
1035 info->tableDef = tableDef->parent;
1036 heap_free(tableDef);
1037 }
1038 }
1039 } else {
1040 info->tableDef = tableDef->parent;
1041 heap_free(tableDef);
1042 }
1043 } else { /* v1.0 - v3.0 */
1044 WCHAR endl = '\r';
1045 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
1046 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1047 pFmt->dxOffset = info->tableDef->gapH;
1048 pFmt->dxStartIndent = info->tableDef->leftEdge;
1049
1050 ME_ApplyBorderProperties(info, &para->member.para.border,
1051 tableDef->border);
1052 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1053 {
1054 WCHAR tab = '\t';
1055 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1056 tableDef->numCellsInserted++;
1057 }
1058 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1059 if (!tableDef->numCellsDefined)
1060 pFmt->wEffects &= ~PFE_TABLE;
1061 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1062 tableDef->numCellsInserted = 0;
1063 }
1064 break;
1065 }
1066 case rtfTab:
1067 case rtfPar:
1068 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1069 ME_DisplayItem *para;
1070 PARAFORMAT2 *pFmt;
1071 RTFFlushOutputBuffer(info);
1072 para = info->editor->pCursors[0].pPara;
1073 pFmt = para->member.para.pFmt;
1074 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1075 {
1076 /* rtfPar is treated like a space within a table. */
1077 info->rtfClass = rtfText;
1078 info->rtfMajor = ' ';
1079 }
1080 else if (info->rtfMinor == rtfPar && tableDef)
1081 tableDef->numCellsInserted = 0;
1082 }
1083 break;
1084 }
1085 }
1086
1087 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1088 const SIZEL* sz)
1089 {
1090 LPOLEOBJECT lpObject = NULL;
1091 LPSTORAGE lpStorage = NULL;
1092 LPOLECLIENTSITE lpClientSite = NULL;
1093 LPDATAOBJECT lpDataObject = NULL;
1094 LPOLECACHE lpOleCache = NULL;
1095 STGMEDIUM stgm;
1096 FORMATETC fm;
1097 CLSID clsid;
1098 BOOL ret = FALSE;
1099 DWORD conn;
1100
1101 if (hemf)
1102 {
1103 stgm.tymed = TYMED_ENHMF;
1104 stgm.u.hEnhMetaFile = hemf;
1105 fm.cfFormat = CF_ENHMETAFILE;
1106 }
1107 else if (hbmp)
1108 {
1109 stgm.tymed = TYMED_GDI;
1110 stgm.u.hBitmap = hbmp;
1111 fm.cfFormat = CF_BITMAP;
1112 }
1113 stgm.pUnkForRelease = NULL;
1114
1115 fm.ptd = NULL;
1116 fm.dwAspect = DVASPECT_CONTENT;
1117 fm.lindex = -1;
1118 fm.tymed = stgm.tymed;
1119
1120 if (!info->lpRichEditOle)
1121 {
1122 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1123 }
1124
1125 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1126 #if 0
1127 /* FIXME: enable it when rich-edit properly implements this method */
1128 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1129 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1130 #endif
1131 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1132 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1133 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1134 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1135 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1136 {
1137 REOBJECT reobject;
1138
1139 reobject.cbStruct = sizeof(reobject);
1140 reobject.cp = REO_CP_SELECTION;
1141 reobject.clsid = clsid;
1142 reobject.poleobj = lpObject;
1143 reobject.pstg = lpStorage;
1144 reobject.polesite = lpClientSite;
1145 /* convert from twips to .01 mm */
1146 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1147 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1148 reobject.dvaspect = DVASPECT_CONTENT;
1149 reobject.dwFlags = 0; /* FIXME */
1150 reobject.dwUser = 0;
1151
1152 ME_InsertOLEFromCursor(info->editor, &reobject, 0);
1153 ret = TRUE;
1154 }
1155
1156 if (lpObject) IOleObject_Release(lpObject);
1157 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1158 if (lpStorage) IStorage_Release(lpStorage);
1159 if (lpDataObject) IDataObject_Release(lpDataObject);
1160 if (lpOleCache) IOleCache_Release(lpOleCache);
1161
1162 return ret;
1163 }
1164
1165 static void ME_RTFReadPictGroup(RTF_Info *info)
1166 {
1167 SIZEL sz;
1168 BYTE* buffer = NULL;
1169 unsigned bufsz, bufidx;
1170 BOOL flip;
1171 BYTE val;
1172 METAFILEPICT mfp;
1173 HENHMETAFILE hemf;
1174 HBITMAP hbmp;
1175 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1176
1177 RTFGetToken (info);
1178 if (info->rtfClass == rtfEOF)
1179 return;
1180 mfp.mm = MM_TEXT;
1181 /* fetch picture type */
1182 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1183 {
1184 mfp.mm = info->rtfParam;
1185 gfx = gfx_metafile;
1186 }
1187 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1188 {
1189 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1190 gfx = gfx_dib;
1191 }
1192 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1193 {
1194 gfx = gfx_enhmetafile;
1195 }
1196 else
1197 {
1198 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1199 goto skip_group;
1200 }
1201 sz.cx = sz.cy = 0;
1202 /* fetch picture attributes */
1203 for (;;)
1204 {
1205 RTFGetToken (info);
1206 if (info->rtfClass == rtfEOF)
1207 return;
1208 if (info->rtfClass == rtfText)
1209 break;
1210 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1211 {
1212 ERR("Expected picture attribute (%d %d)\n",
1213 info->rtfClass, info->rtfMajor);
1214 goto skip_group;
1215 }
1216 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1217 {
1218 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1219 }
1220 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1221 {
1222 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1223 }
1224 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1225 sz.cx = info->rtfParam;
1226 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1227 sz.cy = info->rtfParam;
1228 else
1229 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1230 }
1231 /* fetch picture data */
1232 bufsz = 1024;
1233 bufidx = 0;
1234 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1235 val = info->rtfMajor;
1236 for (flip = TRUE;; flip = !flip)
1237 {
1238 RTFGetToken (info);
1239 if (info->rtfClass == rtfEOF)
1240 {
1241 HeapFree(GetProcessHeap(), 0, buffer);
1242 return; /* Warn ?? */
1243 }
1244 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1245 break;
1246 if (info->rtfClass != rtfText) goto skip_group;
1247 if (flip)
1248 {
1249 if (bufidx >= bufsz &&
1250 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1251 goto skip_group;
1252 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1253 }
1254 else
1255 val = info->rtfMajor;
1256 }
1257 if (flip) FIXME("wrong hex string\n");
1258
1259 switch (gfx)
1260 {
1261 case gfx_enhmetafile:
1262 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1263 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1264 break;
1265 case gfx_metafile:
1266 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1267 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1268 break;
1269 case gfx_dib:
1270 {
1271 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1272 HDC hdc = GetDC(0);
1273 unsigned nc = bi->bmiHeader.biClrUsed;
1274
1275 /* not quite right, especially for bitfields type of compression */
1276 if (!nc && bi->bmiHeader.biBitCount <= 8)
1277 nc = 1 << bi->bmiHeader.biBitCount;
1278 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1279 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1280 bi, DIB_RGB_COLORS)))
1281 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1282 ReleaseDC(0, hdc);
1283 }
1284 break;
1285 default:
1286 break;
1287 }
1288 HeapFree(GetProcessHeap(), 0, buffer);
1289 RTFRouteToken (info); /* feed "}" back to router */
1290 return;
1291 skip_group:
1292 HeapFree(GetProcessHeap(), 0, buffer);
1293 RTFSkipGroup(info);
1294 RTFRouteToken(info); /* feed "}" back to router */
1295 }
1296
1297 /* for now, lookup the \result part and use it, whatever the object */
1298 static void ME_RTFReadObjectGroup(RTF_Info *info)
1299 {
1300 for (;;)
1301 {
1302 RTFGetToken (info);
1303 if (info->rtfClass == rtfEOF)
1304 return;
1305 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1306 break;
1307 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1308 {
1309 RTFGetToken (info);
1310 if (info->rtfClass == rtfEOF)
1311 return;
1312 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1313 {
1314 int level = 1;
1315
1316 while (RTFGetToken (info) != rtfEOF)
1317 {
1318 if (info->rtfClass == rtfGroup)
1319 {
1320 if (info->rtfMajor == rtfBeginGroup) level++;
1321 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1322 }
1323 RTFRouteToken(info);
1324 }
1325 }
1326 else RTFSkipGroup(info);
1327 continue;
1328 }
1329 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1330 {
1331 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1332 return;
1333 }
1334 }
1335 RTFRouteToken(info); /* feed "}" back to router */
1336 }
1337
1338 static void ME_RTFReadHook(RTF_Info *info)
1339 {
1340 switch(info->rtfClass)
1341 {
1342 case rtfGroup:
1343 switch(info->rtfMajor)
1344 {
1345 case rtfBeginGroup:
1346 if (info->stackTop < maxStack) {
1347 info->stack[info->stackTop].style = info->style;
1348 ME_AddRefStyle(info->style);
1349 info->stack[info->stackTop].codePage = info->codePage;
1350 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1351 }
1352 info->stackTop++;
1353 info->styleChanged = FALSE;
1354 break;
1355 case rtfEndGroup:
1356 {
1357 RTFFlushOutputBuffer(info);
1358 info->stackTop--;
1359 if (info->stackTop <= 0)
1360 info->rtfClass = rtfEOF;
1361 if (info->stackTop < 0)
1362 return;
1363
1364 ME_ReleaseStyle(info->style);
1365 info->style = info->stack[info->stackTop].style;
1366 info->codePage = info->stack[info->stackTop].codePage;
1367 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1368 break;
1369 }
1370 }
1371 break;
1372 }
1373 }
1374
1375 void
1376 ME_StreamInFill(ME_InStream *stream)
1377 {
1378 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1379 (BYTE *)stream->buffer,
1380 sizeof(stream->buffer),
1381 (LONG *)&stream->dwSize);
1382 stream->dwUsed = 0;
1383 }
1384
1385 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1386 {
1387 RTF_Info parser;
1388 ME_Style *style;
1389 int from, to, nUndoMode;
1390 int nEventMask = editor->nEventMask;
1391 ME_InStream inStream;
1392 BOOL invalidRTF = FALSE;
1393 ME_Cursor *selStart, *selEnd;
1394
1395 TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
1396 editor->nEventMask = 0;
1397
1398 ME_GetSelectionOfs(editor, &from, &to);
1399 if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
1400 {
1401 ME_GetSelection(editor, &selStart, &selEnd);
1402 style = ME_GetSelectionInsertStyle(editor);
1403
1404 ME_InternalDeleteText(editor, selStart, to - from, FALSE);
1405
1406 /* Don't insert text at the end of the table row */
1407 if (!editor->bEmulateVersion10) { /* v4.1 */
1408 ME_DisplayItem *para = editor->pCursors->pPara;
1409 if (para->member.para.nFlags & MEPF_ROWEND)
1410 {
1411 para = para->member.para.next_para;
1412 editor->pCursors[0].pPara = para;
1413 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1414 editor->pCursors[0].nOffset = 0;
1415 }
1416 if (para->member.para.nFlags & MEPF_ROWSTART)
1417 {
1418 para = para->member.para.next_para;
1419 editor->pCursors[0].pPara = para;
1420 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1421 editor->pCursors[0].nOffset = 0;
1422 }
1423 editor->pCursors[1] = editor->pCursors[0];
1424 } else { /* v1.0 - 3.0 */
1425 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1426 ME_IsInTable(editor->pCursors[0].pRun))
1427 return 0;
1428 }
1429 } else {
1430 style = editor->pBuffer->pDefaultStyle;
1431 ME_AddRefStyle(style);
1432 ME_SetSelection(editor, 0, 0);
1433 ME_InternalDeleteText(editor, &editor->pCursors[1],
1434 ME_GetTextLength(editor), FALSE);
1435 from = to = 0;
1436 ME_ClearTempStyle(editor);
1437 ME_SetDefaultParaFormat(editor->pCursors[0].pPara->member.para.pFmt);
1438 }
1439
1440
1441 /* Back up undo mode to a local variable */
1442 nUndoMode = editor->nUndoMode;
1443
1444 /* Only create an undo if SFF_SELECTION is set */
1445 if (!(format & SFF_SELECTION))
1446 editor->nUndoMode = umIgnore;
1447
1448 inStream.editstream = stream;
1449 inStream.editstream->dwError = 0;
1450 inStream.dwSize = 0;
1451 inStream.dwUsed = 0;
1452
1453 if (format & SF_RTF)
1454 {
1455 /* Check if it's really RTF, and if it is not, use plain text */
1456 ME_StreamInFill(&inStream);
1457 if (!inStream.editstream->dwError)
1458 {
1459 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1460 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1461 {
1462 invalidRTF = TRUE;
1463 inStream.editstream->dwError = -16;
1464 }
1465 }
1466 }
1467
1468 if (!invalidRTF && !inStream.editstream->dwError)
1469 {
1470 if (format & SF_RTF) {
1471 /* setup the RTF parser */
1472 memset(&parser, 0, sizeof parser);
1473 RTFSetEditStream(&parser, &inStream);
1474 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1475 parser.editor = editor;
1476 parser.style = style;
1477 WriterInit(&parser);
1478 RTFInit(&parser);
1479 RTFSetReadHook(&parser, ME_RTFReadHook);
1480 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1481 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1482 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1483 {
1484 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1485 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1486 }
1487 BeginFile(&parser);
1488
1489 /* do the parsing */
1490 RTFRead(&parser);
1491 RTFFlushOutputBuffer(&parser);
1492 if (!editor->bEmulateVersion10) { /* v4.1 */
1493 if (parser.tableDef && parser.tableDef->tableRowStart &&
1494 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1495 {
1496 /* Delete any incomplete table row at the end of the rich text. */
1497 int nOfs, nChars;
1498 ME_DisplayItem *pCell;
1499 ME_DisplayItem *para;
1500
1501 parser.rtfMinor = rtfRow;
1502 /* Complete the table row before deleting it.
1503 * By doing it this way we will have the current paragraph format set
1504 * properly to reflect that is not in the complete table, and undo items
1505 * will be added for this change to the current paragraph format. */
1506 if (parser.nestingLevel > 0)
1507 {
1508 while (parser.nestingLevel > 1)
1509 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1510 para = parser.tableDef->tableRowStart;
1511 ME_RTFSpecialCharHook(&parser);
1512 } else {
1513 para = parser.tableDef->tableRowStart;
1514 ME_RTFSpecialCharHook(&parser);
1515 assert(para->member.para.nFlags & MEPF_ROWEND);
1516 para = para->member.para.next_para;
1517 }
1518 pCell = para->member.para.pCell;
1519
1520 editor->pCursors[1].pPara = para;
1521 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1522 editor->pCursors[1].nOffset = 0;
1523 nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
1524 nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
1525 ME_InternalDeleteText(editor, &editor->pCursors[1], nChars, TRUE);
1526 if (parser.tableDef)
1527 parser.tableDef->tableRowStart = NULL;
1528 }
1529 }
1530 ME_CheckTablesForCorruption(editor);
1531 RTFDestroy(&parser);
1532 if (parser.lpRichEditOle)
1533 IRichEditOle_Release(parser.lpRichEditOle);
1534
1535 if (parser.stackTop > 0)
1536 {
1537 while (--parser.stackTop >= 0)
1538 {
1539 ME_ReleaseStyle(parser.style);
1540 parser.style = parser.stack[parser.stackTop].style;
1541 }
1542 if (!inStream.editstream->dwError)
1543 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1544 }
1545
1546 /* Remove last line break, as mandated by tests. This is not affected by
1547 CR/LF counters, since RTF streaming presents only \para tokens, which
1548 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1549 */
1550 if (stripLastCR) {
1551 int newto;
1552 ME_GetSelection(editor, &selStart, &selEnd);
1553 newto = ME_GetCursorOfs(selEnd);
1554 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1555 WCHAR lastchar[3] = {'\0', '\0'};
1556 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1557 ME_Cursor linebreakCursor = *selEnd;
1558
1559 ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize);
1560 ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, 0);
1561 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1562 ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
1563 }
1564 }
1565 }
1566
1567 style = parser.style;
1568 }
1569 else if (format & SF_TEXT)
1570 ME_StreamInText(editor, format, &inStream, style);
1571 else
1572 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1573 /* put the cursor at the top */
1574 if (!(format & SFF_SELECTION))
1575 ME_SetSelection(editor, 0, 0);
1576 }
1577
1578 /* Restore saved undo mode */
1579 editor->nUndoMode = nUndoMode;
1580
1581 /* even if we didn't add an undo, we need to commit anything on the stack */
1582 ME_CommitUndo(editor);
1583
1584 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1585 if (!(format & SFF_SELECTION))
1586 ME_EmptyUndoStack(editor);
1587
1588 ME_ReleaseStyle(style);
1589 editor->nEventMask = nEventMask;
1590 ME_UpdateRepaint(editor);
1591 if (!(format & SFF_SELECTION)) {
1592 ME_ClearTempStyle(editor);
1593 }
1594 ITextHost_TxShowCaret(editor->texthost, FALSE);
1595 ME_MoveCaret(editor);
1596 ITextHost_TxShowCaret(editor->texthost, TRUE);
1597 ME_SendSelChange(editor);
1598 ME_SendRequestResize(editor, FALSE);
1599
1600 return 0;
1601 }
1602
1603
1604 typedef struct tagME_RTFStringStreamStruct
1605 {
1606 char *string;
1607 int pos;
1608 int length;
1609 } ME_RTFStringStreamStruct;
1610
1611 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1612 {
1613 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1614 int count;
1615
1616 count = min(cb, pStruct->length - pStruct->pos);
1617 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1618 pStruct->pos += count;
1619 *pcb = count;
1620 return 0;
1621 }
1622
1623 static void
1624 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1625 {
1626 EDITSTREAM es;
1627 ME_RTFStringStreamStruct data;
1628
1629 data.string = string;
1630 data.length = strlen(string);
1631 data.pos = 0;
1632 es.dwCookie = (DWORD_PTR)&data;
1633 es.pfnCallback = ME_ReadFromRTFString;
1634 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1635 }
1636
1637
1638 static int
1639 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1640 {
1641 const int nLen = lstrlenW(text);
1642 const int nTextLen = ME_GetTextLength(editor);
1643 int nMin, nMax;
1644 ME_Cursor cursor;
1645 WCHAR wLastChar = ' ';
1646
1647 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1648 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1649
1650 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1651 FIXME("Flags 0x%08x not implemented\n",
1652 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1653
1654 nMin = chrg->cpMin;
1655 if (chrg->cpMax == -1)
1656 nMax = nTextLen;
1657 else
1658 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1659
1660 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1661 if (editor->bEmulateVersion10 && nMax == nTextLen)
1662 {
1663 flags |= FR_DOWN;
1664 }
1665
1666 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1667 if (editor->bEmulateVersion10 && nMax < nMin)
1668 {
1669 if (chrgText)
1670 {
1671 chrgText->cpMin = -1;
1672 chrgText->cpMax = -1;
1673 }
1674 return -1;
1675 }
1676
1677 /* when searching up, if cpMin < cpMax, then instead of searching
1678 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1679 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1680 * case, it is always bigger than cpMin.
1681 */
1682 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1683 {
1684 int nSwap = nMax;
1685
1686 nMax = nMin > nTextLen ? nTextLen : nMin;
1687 if (nMin < nSwap || chrg->cpMax == -1)
1688 nMin = 0;
1689 else
1690 nMin = nSwap;
1691 }
1692
1693 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1694 {
1695 if (chrgText)
1696 chrgText->cpMin = chrgText->cpMax = -1;
1697 return -1;
1698 }
1699
1700 if (flags & FR_DOWN) /* Forward search */
1701 {
1702 /* If possible, find the character before where the search starts */
1703 if ((flags & FR_WHOLEWORD) && nMin)
1704 {
1705 ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
1706 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1707 ME_MoveCursorChars(editor, &cursor, 1);
1708 } else {
1709 ME_CursorFromCharOfs(editor, nMin, &cursor);
1710 }
1711
1712 while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
1713 {
1714 ME_DisplayItem *pCurItem = cursor.pRun;
1715 int nCurStart = cursor.nOffset;
1716 int nMatched = 0;
1717
1718 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1719 {
1720 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1721 break;
1722
1723 nMatched++;
1724 if (nMatched == nLen)
1725 {
1726 ME_DisplayItem *pNextItem = pCurItem;
1727 int nNextStart = nCurStart;
1728 WCHAR wNextChar;
1729
1730 /* Check to see if next character is a whitespace */
1731 if (flags & FR_WHOLEWORD)
1732 {
1733 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1734 {
1735 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1736 nNextStart = -nMatched;
1737 }
1738
1739 if (pNextItem)
1740 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1741 else
1742 wNextChar = ' ';
1743
1744 if (isalnumW(wNextChar))
1745 break;
1746 }
1747
1748 cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
1749 if (chrgText)
1750 {
1751 chrgText->cpMin = cursor.nOffset;
1752 chrgText->cpMax = cursor.nOffset + nLen;
1753 }
1754 TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
1755 return cursor.nOffset;
1756 }
1757 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1758 {
1759 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1760 nCurStart = -nMatched;
1761 }
1762 }
1763 if (pCurItem)
1764 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1765 else
1766 wLastChar = ' ';
1767
1768 cursor.nOffset++;
1769 if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
1770 {
1771 ME_NextRun(&cursor.pPara, &cursor.pRun);
1772 cursor.nOffset = 0;
1773 }
1774 }
1775 }
1776 else /* Backward search */
1777 {
1778 /* If possible, find the character after where the search ends */
1779 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1780 {
1781 ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
1782 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1783 ME_MoveCursorChars(editor, &cursor, -1);
1784 } else {
1785 ME_CursorFromCharOfs(editor, nMax, &cursor);
1786 }
1787
1788 while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
1789 {
1790 ME_DisplayItem *pCurItem = cursor.pRun;
1791 ME_DisplayItem *pCurPara = cursor.pPara;
1792 int nCurEnd = cursor.nOffset;
1793 int nMatched = 0;
1794
1795 if (nCurEnd == 0)
1796 {
1797 ME_PrevRun(&pCurPara, &pCurItem);
1798 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1799 }
1800
1801 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1802 {
1803 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1804 break;
1805
1806 nMatched++;
1807 if (nMatched == nLen)
1808 {
1809 ME_DisplayItem *pPrevItem = pCurItem;
1810 int nPrevEnd = nCurEnd;
1811 WCHAR wPrevChar;
1812 int nStart;
1813
1814 /* Check to see if previous character is a whitespace */
1815 if (flags & FR_WHOLEWORD)
1816 {
1817 if (nPrevEnd - nMatched == 0)
1818 {
1819 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1820 if (pPrevItem)
1821 nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
1822 }
1823
1824 if (pPrevItem)
1825 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1826 else
1827 wPrevChar = ' ';
1828
1829 if (isalnumW(wPrevChar))
1830 break;
1831 }
1832
1833 nStart = pCurPara->member.para.nCharOfs
1834 + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1835 if (chrgText)
1836 {
1837 chrgText->cpMin = nStart;
1838 chrgText->cpMax = nStart + nLen;
1839 }
1840 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1841 return nStart;
1842 }
1843 if (nCurEnd - nMatched == 0)
1844 {
1845 ME_PrevRun(&pCurPara, &pCurItem);
1846 /* Don't care about pCurItem becoming NULL here; it's already taken
1847 * care of in the exterior loop condition */
1848 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1849 }
1850 }
1851 if (pCurItem)
1852 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1853 else
1854 wLastChar = ' ';
1855
1856 cursor.nOffset--;
1857 if (cursor.nOffset < 0)
1858 {
1859 ME_PrevRun(&cursor.pPara, &cursor.pRun);
1860 cursor.nOffset = cursor.pRun->member.run.strText->nLen;
1861 }
1862 }
1863 }
1864 TRACE("not found\n");
1865 if (chrgText)
1866 chrgText->cpMin = chrgText->cpMax = -1;
1867 return -1;
1868 }
1869
1870 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
1871 {
1872 int nChars;
1873 ME_Cursor start;
1874
1875 if (!ex->cb || !pText) return 0;
1876
1877 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1878 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1879
1880 if (ex->flags & GT_SELECTION)
1881 {
1882 int from, to;
1883 int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
1884 start = editor->pCursors[nStartCur];
1885 nChars = to - from;
1886 }
1887 else
1888 {
1889 ME_SetCursorToStart(editor, &start);
1890 nChars = INT_MAX;
1891 }
1892 if (ex->codepage == 1200)
1893 {
1894 return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
1895 &start, nChars, ex->flags & GT_USECRLF);
1896 }
1897 else
1898 {
1899 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1900 we can just take a bigger buffer? :)
1901 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
1902 occurs only in richedit 2.0 mode, in which line breaks have only one CR
1903 */
1904 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1905 DWORD buflen;
1906 LPWSTR buffer;
1907 LRESULT rc;
1908
1909 buflen = min(crlfmul * nChars, ex->cb - 1);
1910 buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
1911
1912 nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF);
1913 rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
1914 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
1915 if (rc) rc--; /* do not count 0 terminator */
1916
1917 heap_free(buffer);
1918 return rc;
1919 }
1920 }
1921
1922 static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
1923 const ME_Cursor *start, int nLen, BOOL unicode)
1924 {
1925 if (!strText) return 0;
1926 if (unicode) {
1927 return ME_GetTextW(editor, strText, INT_MAX, start, nLen, 0);
1928 } else {
1929 int nChars;
1930 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1931 if (!p) return 0;
1932 nChars = ME_GetTextW(editor, p, nLen, start, nLen, 0);
1933 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
1934 nLen+1, NULL, NULL);
1935 FREE_OBJ(p);
1936 return nChars;
1937 }
1938 }
1939
1940 typedef struct tagME_GlobalDestStruct
1941 {
1942 HGLOBAL hData;
1943 int nLength;
1944 } ME_GlobalDestStruct;
1945
1946 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1947 {
1948 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1949 int i;
1950 WORD *pSrc, *pDest;
1951
1952 cb = cb >> 1;
1953 pDest = (WORD *)lpBuff;
1954 pSrc = GlobalLock(pData->hData);
1955 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1956 pDest[i] = pSrc[pData->nLength+i];
1957 }
1958 pData->nLength += i;
1959 *pcb = 2*i;
1960 GlobalUnlock(pData->hData);
1961 return 0;
1962 }
1963
1964 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1965 {
1966 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1967 int i;
1968 BYTE *pSrc, *pDest;
1969
1970 pDest = lpBuff;
1971 pSrc = GlobalLock(pData->hData);
1972 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1973 pDest[i] = pSrc[pData->nLength+i];
1974 }
1975 pData->nLength += i;
1976 *pcb = i;
1977 GlobalUnlock(pData->hData);
1978 return 0;
1979 }
1980
1981 static BOOL ME_Paste(ME_TextEditor *editor)
1982 {
1983 DWORD dwFormat = 0;
1984 EDITSTREAM es;
1985 ME_GlobalDestStruct gds;
1986 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1987 UINT cf = 0;
1988
1989 if (IsClipboardFormatAvailable(nRTFFormat))
1990 cf = nRTFFormat, dwFormat = SF_RTF;
1991 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1992 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1993 else
1994 return FALSE;
1995
1996 if (!OpenClipboard(editor->hWnd))
1997 return FALSE;
1998 gds.hData = GetClipboardData(cf);
1999 gds.nLength = 0;
2000 es.dwCookie = (DWORD_PTR)&gds;
2001 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2002 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2003
2004 CloseClipboard();
2005 return TRUE;
2006 }
2007
2008 static BOOL ME_Copy(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
2009 {
2010 LPDATAOBJECT dataObj = NULL;
2011 HRESULT hr = S_OK;
2012
2013 if (editor->cPasswordMask)
2014 return FALSE; /* Copying or Cutting masked text isn't allowed */
2015
2016 if(editor->lpOleCallback)
2017 {
2018 CHARRANGE range;
2019 range.cpMin = ME_GetCursorOfs(start);
2020 range.cpMax = range.cpMin + nChars;
2021 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2022 }
2023 if(FAILED(hr) || !dataObj)
2024 hr = ME_GetDataObject(editor, start, nChars, &dataObj);
2025 if(SUCCEEDED(hr)) {
2026 hr = OleSetClipboard(dataObj);
2027 IDataObject_Release(dataObj);
2028 }
2029 return SUCCEEDED(hr) != 0;
2030 }
2031
2032 /* helper to send a msg filter notification */
2033 static BOOL
2034 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2035 {
2036 MSGFILTER msgf;
2037
2038 if (!editor->hWnd || !editor->hwndParent) return FALSE;
2039 msgf.nmhdr.hwndFrom = editor->hWnd;
2040 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2041 msgf.nmhdr.code = EN_MSGFILTER;
2042 msgf.msg = msg;
2043 msgf.wParam = *wParam;
2044 msgf.lParam = *lParam;
2045 if (SendMessageW(editor->hwndParent, WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2046 return FALSE;
2047 *wParam = msgf.wParam;
2048 *lParam = msgf.lParam;
2049 msgf.wParam = *wParam;
2050
2051 return TRUE;
2052 }
2053
2054 static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
2055 {
2056 ME_DisplayItem *startPara, *endPara;
2057 ME_DisplayItem *prev_para;
2058 ME_Cursor *from, *to;
2059 ME_Cursor start;
2060 int nChars;
2061
2062 if (!editor->AutoURLDetect_bEnable) return;
2063
2064 ME_GetSelection(editor, &from, &to);
2065
2066 /* Find paragraph previous to the one that contains start cursor */
2067 startPara = from->pPara;
2068 prev_para = startPara->member.para.prev_para;
2069 if (prev_para->type == diParagraph) startPara = prev_para;
2070
2071 /* Find paragraph that contains end cursor */
2072 endPara = to->pPara->member.para.next_para;
2073
2074 start.pPara = startPara;
2075 start.pRun = ME_FindItemFwd(startPara, diRun);
2076 start.nOffset = 0;
2077 nChars = endPara->member.para.nCharOfs - startPara->member.para.nCharOfs;
2078
2079 ME_UpdateLinkAttribute(editor, &start, nChars);
2080 }
2081
2082 static BOOL
2083 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2084 {
2085 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2086 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2087
2088 if (editor->bMouseCaptured)
2089 return FALSE;
2090 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2091 editor->nSelectionType = stPosition;
2092
2093 switch (nKey)
2094 {
2095 case VK_LEFT:
2096 case VK_RIGHT:
2097 case VK_HOME:
2098 case VK_END:
2099 editor->nUDArrowX = -1;
2100 /* fall through */
2101 case VK_UP:
2102 case VK_DOWN:
2103 case VK_PRIOR:
2104 case VK_NEXT:
2105 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2106 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2107 return TRUE;
2108 case VK_BACK:
2109 case VK_DELETE:
2110 editor->nUDArrowX = -1;
2111 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2112 if (editor->styleFlags & ES_READONLY)
2113 return FALSE;
2114 if (ME_IsSelection(editor))
2115 {
2116 ME_DeleteSelection(editor);
2117 ME_CommitUndo(editor);
2118 }
2119 else if (nKey == VK_DELETE)
2120 {
2121 /* Delete stops group typing.
2122 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2123 ME_DeleteTextAtCursor(editor, 1, 1);
2124 ME_CommitUndo(editor);
2125 }
2126 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2127 {
2128 BOOL bDeletionSucceeded;
2129 /* Backspace can be grouped for a single undo */
2130 ME_ContinueCoalescingTransaction(editor);
2131 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2132 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2133 /* Deletion was prevented so the cursor is moved back to where it was.
2134 * (e.g. this happens when trying to delete cell boundaries)
2135 */
2136 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2137 }
2138 ME_CommitCoalescingUndo(editor);
2139 }
2140 else
2141 return TRUE;
2142 ME_MoveCursorFromTableRowStartParagraph(editor);
2143 ME_UpdateSelectionLinkAttribute(editor);
2144 ME_UpdateRepaint(editor);
2145 ME_SendRequestResize(editor, FALSE);
2146 return TRUE;
2147 case VK_RETURN:
2148 if (editor->bDialogMode)
2149 {
2150 if (ctrl_is_down)
2151 return TRUE;
2152
2153 if (!(editor->styleFlags & ES_WANTRETURN))
2154 {
2155 if (editor->hwndParent)
2156 {
2157 DWORD dw;
2158 dw = SendMessageW(editor->hwndParent, DM_GETDEFID, 0, 0);
2159 if (HIWORD(dw) == DC_HASDEFID)
2160 {
2161 HWND hwDefCtrl = GetDlgItem(editor->hwndParent, LOWORD(dw));
2162 if (hwDefCtrl)
2163 {
2164 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, (LPARAM)TRUE);
2165 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
2166 }
2167 }
2168 }
2169 return TRUE;
2170 }
2171 }
2172
2173 if (editor->styleFlags & ES_MULTILINE)
2174 {
2175 ME_Cursor cursor = editor->pCursors[0];
2176 ME_DisplayItem *para = cursor.pPara;
2177 int from, to;
2178 const WCHAR endl = '\r';
2179 ME_Style *style;
2180
2181 if (editor->styleFlags & ES_READONLY) {
2182 MessageBeep(MB_ICONERROR);
2183 return TRUE;
2184 }
2185
2186 ME_GetSelectionOfs(editor, &from, &to);
2187 if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2188 {
2189 if (!editor->bEmulateVersion10) { /* v4.1 */
2190 if (para->member.para.nFlags & MEPF_ROWEND) {
2191 /* Add a new table row after this row. */
2192 para = ME_AppendTableRow(editor, para);
2193 para = para->member.para.next_para;
2194 editor->pCursors[0].pPara = para;
2195 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2196 editor->pCursors[0].nOffset = 0;
2197 editor->pCursors[1] = editor->pCursors[0];
2198 ME_CommitUndo(editor);
2199 ME_CheckTablesForCorruption(editor);
2200 ME_UpdateRepaint(editor);
2201 return TRUE;
2202 }
2203 else if (para == editor->pCursors[1].pPara &&
2204 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
2205 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
2206 !para->member.para.prev_para->member.para.nCharOfs)
2207 {
2208 /* Insert a newline before the table. */
2209 para = para->member.para.prev_para;
2210 para->member.para.nFlags &= ~MEPF_ROWSTART;
2211 editor->pCursors[0].pPara = para;
2212 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2213 editor->pCursors[1] = editor->pCursors[0];
2214 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2215 editor->pCursors[0].pRun->member.run.style);
2216 para = editor->pBuffer->pFirst->member.para.next_para;
2217 ME_SetDefaultParaFormat(para->member.para.pFmt);
2218 para->member.para.nFlags = MEPF_REWRAP;
2219 editor->pCursors[0].pPara = para;
2220 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2221 editor->pCursors[1] = editor->pCursors[0];
2222 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
2223 ME_CommitCoalescingUndo(editor);
2224 ME_CheckTablesForCorruption(editor);
2225 ME_UpdateRepaint(editor);
2226 return TRUE;
2227 }
2228 } else { /* v1.0 - 3.0 */
2229 ME_DisplayItem *para = cursor.pPara;
2230 if (ME_IsInTable(para))
2231 {
2232 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
2233 {
2234 if (from == to) {
2235 ME_ContinueCoalescingTransaction(editor);
2236 para = ME_AppendTableRow(editor, para);
2237 editor->pCursors[0].pPara = para;
2238 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2239 editor->pCursors[0].nOffset = 0;
2240 editor->pCursors[1] = editor->pCursors[0];
2241 ME_CommitCoalescingUndo(editor);
2242 ME_UpdateRepaint(editor);
2243 return TRUE;
2244 }
2245 } else {
2246 ME_ContinueCoalescingTransaction(editor);
2247 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2248 !ME_IsInTable(para->member.para.prev_para))
2249 {
2250 /* Insert newline before table */
2251 cursor.pRun = ME_FindItemBack(para, diRun);
2252 if (cursor.pRun) {
2253 editor->pCursors[0].pRun = cursor.pRun;
2254 editor->pCursors[0].pPara = para->member.para.prev_para;
2255 }
2256 editor->pCursors[0].nOffset = 0;
2257 editor->pCursors[1] = editor->pCursors[0];
2258 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2259 editor->pCursors[0].pRun->member.run.style);
2260 } else {
2261 editor->pCursors[1] = editor->pCursors[0];
2262 para = ME_AppendTableRow(editor, para);
2263 editor->pCursors[0].pPara = para;
2264 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2265 editor->pCursors[0].nOffset = 0;
2266 editor->pCursors[1] = editor->pCursors[0];
2267 }
2268 ME_CommitCoalescingUndo(editor);
2269 ME_UpdateRepaint(editor);
2270 return TRUE;
2271 }
2272 }
2273 }
2274
2275 style = ME_GetInsertStyle(editor, 0);
2276 ME_SaveTempStyle(editor);
2277 ME_ContinueCoalescingTransaction(editor);
2278 if (shift_is_down)
2279 ME_InsertEndRowFromCursor(editor, 0);
2280 else
2281 ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
2282 ME_ReleaseStyle(style);
2283 ME_CommitCoalescingUndo(editor);
2284 SetCursor(NULL);
2285
2286 ME_UpdateSelectionLinkAttribute(editor);
2287 ME_UpdateRepaint(editor);
2288 }
2289 return TRUE;
2290 }
2291 break;
2292 case VK_ESCAPE:
2293 if (editor->bDialogMode && editor->hwndParent)
2294 PostMessageW(editor->hwndParent, WM_CLOSE, 0, 0);
2295 return TRUE;
2296 case VK_TAB:
2297 if (editor->bDialogMode && editor->hwndParent)
2298 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, shift_is_down, 0);
2299 return TRUE;
2300 case 'A':
2301 if (ctrl_is_down)
2302 {
2303 ME_SetSelection(editor, 0, -1);
2304 return TRUE;
2305 }
2306 break;
2307 case 'V':
2308 if (ctrl_is_down)
2309 return ME_Paste(editor);
2310 break;
2311 case 'C':
2312 case 'X':
2313 if (ctrl_is_down)
2314 {
2315 BOOL result;
2316 int nOfs, nChars;
2317 int nStartCur = ME_GetSelectionOfs(editor, &nOfs, &nChars);
2318 ME_Cursor *selStart = &editor->pCursors[nStartCur];
2319
2320 nChars -= nOfs;
2321 result = ME_Copy(editor, selStart, nChars);
2322 if (result && nKey == 'X')
2323 {
2324 ME_InternalDeleteText(editor, selStart, nChars, FALSE);
2325 ME_CommitUndo(editor);
2326 ME_UpdateRepaint(editor);
2327 }
2328 return result;
2329 }
2330 break;
2331 case 'Z':
2332 if (ctrl_is_down)
2333 {
2334 ME_Undo(editor);
2335 return TRUE;
2336 }
2337 break;
2338 case 'Y':
2339 if (ctrl_is_down)
2340 {
2341 ME_Redo(editor);
2342 return TRUE;
2343 }
2344 break;
2345
2346 default:
2347 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2348 editor->nUDArrowX = -1;
2349 if (ctrl_is_down)
2350 {
2351 if (nKey == 'W')
2352 {
2353 CHARFORMAT2W chf;
2354 char buf[2048];
2355 chf.cbSize = sizeof(chf);
2356
2357 ME_GetSelectionCharFormat(editor, &chf);
2358 ME_DumpStyleToBuf(&chf, buf);
2359 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2360 }
2361 if (nKey == 'Q')
2362 {
2363 ME_CheckCharOffsets(editor);
2364 }
2365 }
2366 }
2367 return FALSE;
2368 }
2369
2370 static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
2371 LPARAM flags, BOOL unicode)
2372 {
2373 WCHAR wstr;
2374
2375 if (editor->bMouseCaptured)
2376 return 0;
2377
2378 if (unicode)
2379 wstr = (WCHAR)charCode;
2380 else
2381 {
2382 CHAR charA = charCode;
2383 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2384 }
2385
2386 if (editor->styleFlags & ES_READONLY) {
2387 MessageBeep(MB_ICONERROR);
2388 return 0; /* FIXME really 0 ? */
2389 }
2390
2391 if ((unsigned)wstr >= ' ' || wstr == '\t')
2392 {
2393 ME_Cursor cursor = editor->pCursors[0];
2394 ME_DisplayItem *para = cursor.pPara;
2395 int from, to;
2396 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2397 ME_GetSelectionOfs(editor, &from, &to);
2398 if (wstr == '\t' &&
2399 /* v4.1 allows tabs to be inserted with ctrl key down */
2400 !(ctrl_is_down && !editor->bEmulateVersion10))
2401 {
2402 ME_DisplayItem *para;
2403 BOOL bSelectedRow = FALSE;
2404
2405 para = cursor.pPara;
2406 if (ME_IsSelection(editor) &&
2407 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2408 to == ME_GetCursorOfs(&editor->pCursors[0]) &&
2409 para->member.para.prev_para->type == diParagraph)
2410 {
2411 para = para->member.para.prev_para;
2412 bSelectedRow = TRUE;
2413 }
2414 if (ME_IsInTable(para))
2415 {
2416 ME_TabPressedInTable(editor, bSelectedRow);
2417 ME_CommitUndo(editor);
2418 return 0;
2419 }
2420 } else if (!editor->bEmulateVersion10) { /* v4.1 */
2421 if (para->member.para.nFlags & MEPF_ROWEND) {
2422 if (from == to) {
2423 para = para->member.para.next_para;
2424 if (para->member.para.nFlags & MEPF_ROWSTART)
2425 para = para->member.para.next_para;
2426 editor->pCursors[0].pPara = para;
2427 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2428 editor->pCursors[0].nOffset = 0;
2429 editor->pCursors[1] = editor->pCursors[0];
2430 }
2431 }
2432 } else { /* v1.0 - 3.0 */
2433 if (ME_IsInTable(cursor.pRun) &&
2434 cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
2435 from == to)
2436 {
2437 /* Text should not be inserted at the end of the table. */
2438 MessageBeep(-1);
2439 return 0;
2440 }
2441 }
2442 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2443 /* WM_CHAR is restricted to nTextLimit */
2444 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2445 {
2446 ME_Style *style = ME_GetInsertStyle(editor, 0);
2447 ME_SaveTempStyle(editor);
2448 ME_ContinueCoalescingTransaction(editor);
2449 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2450 ME_ReleaseStyle(style);
2451 ME_CommitCoalescingUndo(editor);
2452 ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
2453 }
2454
2455 ME_UpdateSelectionLinkAttribute(editor);
2456 ME_UpdateRepaint(editor);
2457 }
2458 return 0;
2459 }
2460
2461 /* Process the message and calculate the new click count.
2462 *
2463 * returns: The click count if it is mouse down event, else returns 0. */
2464 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2465 LPARAM lParam)
2466 {
2467 static int clickNum = 0;
2468 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2469 return 0;
2470
2471 if ((msg == WM_LBUTTONDBLCLK) ||
2472 (msg == WM_RBUTTONDBLCLK) ||
2473 (msg == WM_MBUTTONDBLCLK) ||
2474 (msg == WM_XBUTTONDBLCLK))
2475 {
2476 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2477 }
2478
2479 if ((msg == WM_LBUTTONDOWN) ||
2480 (msg == WM_RBUTTONDOWN) ||
2481 (msg == WM_MBUTTONDOWN) ||
2482 (msg == WM_XBUTTONDOWN))
2483 {
2484 static MSG prevClickMsg;
2485 MSG clickMsg;
2486 /* Compare the editor instead of the hwnd so that the this
2487 * can still be done for windowless richedit controls. */
2488 clickMsg.hwnd = (HWND)editor;
2489 clickMsg.message = msg;
2490 clickMsg.wParam = wParam;
2491 clickMsg.lParam = lParam;
2492 clickMsg.time = GetMessageTime();
2493 clickMsg.pt.x = (short)LOWORD(lParam);
2494 clickMsg.pt.y = (short)HIWORD(lParam);
2495 if ((clickNum != 0) &&
2496 (clickMsg.message == prevClickMsg.message) &&
2497 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2498 (clickMsg.wParam == prevClickMsg.wParam) &&
2499 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2500 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2501 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2502 {
2503 clickNum++;
2504 } else {
2505 clickNum = 1;
2506 }
2507 prevClickMsg = clickMsg;
2508 } else {
2509 return 0;
2510 }
2511 return clickNum;
2512 }
2513
2514 static BOOL ME_SetCursor(ME_TextEditor *editor)
2515 {
2516 ME_Cursor cursor;
2517 POINT pt;
2518 BOOL isExact;
2519 SCROLLBARINFO sbi;
2520 DWORD messagePos = GetMessagePos();
2521 pt.x = (short)LOWORD(messagePos);
2522 pt.y = (short)HIWORD(messagePos);
2523
2524 if (editor->hWnd)
2525 {
2526 sbi.cbSize = sizeof(sbi);
2527 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2528 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2529 PtInRect(&sbi.rcScrollBar, pt))
2530 {
2531 ITextHost_TxSetCursor(editor->texthost,
2532 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2533 return TRUE;
2534 }
2535 sbi.cbSize = sizeof(sbi);
2536 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2537 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2538 PtInRect(&sbi.rcScrollBar, pt))
2539 {
2540 ITextHost_TxSetCursor(editor->texthost,
2541 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2542 return TRUE;
2543 }
2544 }
2545 ITextHost_TxScreenToClient(editor->texthost, &pt);
2546
2547 if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
2548 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2549 return TRUE;
2550 }
2551 if (!editor->bEmulateVersion10 /* v4.1 */ &&
2552 pt.y < editor->rcFormat.top &&
2553 pt.x < editor->rcFormat.left)
2554 {
2555 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2556 return TRUE;
2557 }
2558 if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
2559 {
2560 if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
2561 ITextHost_TxSetCursor(editor->texthost,
2562 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2563 else /* v4.1 */
2564 ITextHost_TxSetCursor(editor->texthost,
2565 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2566 return TRUE;
2567 }
2568 if (pt.x < editor->rcFormat.left)
2569 {
2570 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2571 return TRUE;
2572 }
2573 ME_CharFromPos(editor, pt.x, pt.y, &cursor, &isExact);
2574 if (isExact)
2575 {
2576 ME_Run *run;
2577
2578 run = &cursor.pRun->member.run;
2579 if (run->style->fmt.dwMask & CFM_LINK &&
2580 run->style->fmt.dwEffects & CFE_LINK)
2581 {
2582 ITextHost_TxSetCursor(editor->texthost,
2583 LoadCursorW(NULL, (WCHAR*)IDC_HAND),
2584 FALSE);
2585 return TRUE;
2586 }
2587
2588 if (ME_IsSelection(editor))
2589 {
2590 int selStart, selEnd;
2591 int offset = ME_GetCursorOfs(&cursor);
2592
2593 ME_GetSelectionOfs(editor, &selStart, &selEnd);
2594 if (selStart <= offset && selEnd >= offset) {
2595 ITextHost_TxSetCursor(editor->texthost,
2596 LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
2597 FALSE);
2598 return TRUE;
2599 }
2600 }
2601 }
2602 ITextHost_TxSetCursor(editor->texthost,
2603 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2604 return TRUE;
2605 }
2606
2607 static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
2608 {
2609 ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
2610 editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
2611 editor->rcFormat.left += 1 + editor->selofs;
2612 editor->rcFormat.right -= 1;
2613 }
2614
2615 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2616 {
2617 CHARRANGE selrange;
2618 HMENU menu;
2619 int seltype = 0;
2620 if(!editor->lpOleCallback || !editor->hWnd)
2621 return FALSE;
2622 ME_GetSelectionOfs(editor, &selrange.cpMin, &selrange.cpMax);
2623 if(selrange.cpMin == selrange.cpMax)
2624 seltype |= SEL_EMPTY;
2625 else
2626 {
2627 /* FIXME: Handle objects */
2628 seltype |= SEL_TEXT;
2629 if(selrange.cpMax-selrange.cpMin > 1)
2630 seltype |= SEL_MULTICHAR;
2631 }
2632 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2633 {
2634 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, editor->hwndParent, NULL);
2635 DestroyMenu(menu);
2636 }
2637 return TRUE;
2638 }
2639
2640 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
2641 {
2642 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2643 int i;
2644 DWORD props;
2645 LONG selbarwidth;
2646
2647 ed->hWnd = NULL;
2648 ed->hwndParent = NULL;
2649 ed->sizeWindow.cx = ed->sizeWindow.cy = 0;
2650 ed->texthost = texthost;
2651 ed->bEmulateVersion10 = bEmulateVersion10;
2652 ed->styleFlags = 0;
2653 ITextHost_TxGetPropertyBits(texthost,
2654 (TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
2655 TXTBIT_READONLY|TXTBIT_USEPASSWORD|
2656 TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
2657 TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
2658 TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
2659 &props);
2660 ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
2661 ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
2662 ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
2663 ed->pBuffer = ME_MakeText();
2664 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2665 ed->nAvailWidth = 0; /* wrap to client area */
2666 ME_MakeFirstParagraph(ed);
2667 /* The four cursors are for:
2668 * 0 - The position where the caret is shown
2669 * 1 - The anchored end of the selection (for normal selection)
2670 * 2 & 3 - The anchored start and end respectively for word, line,
2671 * or paragraph selection.
2672 */
2673 ed->nCursors = 4;
2674 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2675 ME_SetCursorToStart(ed, &ed->pCursors[0]);
2676 ed->pCursors[1] = ed->pCursors[0];
2677 ed->pCursors[2] = ed->pCursors[0];
2678 ed->pCursors[3] = ed->pCursors[1];
2679 ed->nLastTotalLength = ed->nTotalLength = 0;
2680 ed->nLastTotalWidth = ed->nTotalWidth = 0;
2681 ed->nUDArrowX = -1;
2682 ed->nSequence = 0;
2683 ed->rgbBackColor = -1;
2684 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2685 ed->bCaretAtEnd = FALSE;
2686 ed->nEventMask = 0;
2687 ed->nModifyStep = 0;
2688 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2689 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2690 ed->nUndoStackSize = 0;
2691 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2692 ed->nUndoMode = umAddToUndo;
2693 ed->nParagraphs = 1;
2694 ed->nLastSelStart = ed->nLastSelEnd = 0;
2695 ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
2696 ed->bHideSelection = FALSE;
2697 ed->pfnWordBreak = NULL;
2698 ed->lpOleCallback = NULL;
2699 ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2700 ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
2701 ed->AutoURLDetect_bEnable = FALSE;
2702 ed->bHaveFocus = FALSE;
2703 ed->bDialogMode = FALSE;
2704 ed->bMouseCaptured = FALSE;
2705 for (i=0; i<HFONT_CACHE_SIZE; i++)
2706 {
2707 ed->pFontCache[i].nRefs = 0;
2708 ed->pFontCache[i].nAge = 0;
2709 ed->pFontCache[i].hFont = NULL;
2710 }
2711
2712 ME_CheckCharOffsets(ed);
2713 ed->bDefaultFormatRect = TRUE;
2714 ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
2715 if (selbarwidth) {
2716 /* FIXME: Convert selbarwidth from HIMETRIC to pixels */
2717 ed->selofs = SELECTIONBAR_WIDTH;
2718 ed->styleFlags |= ES_SELECTIONBAR;
2719 } else {
2720 ed->selofs = 0;
2721 }
2722 ed->nSelectionType = stPosition;
2723
2724 ed->cPasswordMask = 0;
2725 if (props & TXTBIT_USEPASSWORD)
2726 ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
2727
2728 if (props & TXTBIT_AUTOWORDSEL)
2729 ed->styleFlags |= ECO_AUTOWORDSELECTION;
2730 if (props & TXTBIT_MULTILINE) {
2731 ed->styleFlags |= ES_MULTILINE;
2732 ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
2733 } else {
2734 ed->bWordWrap = FALSE;
2735 }
2736 if (props & TXTBIT_READONLY)
2737 ed->styleFlags |= ES_READONLY;
2738 if (!(props & TXTBIT_HIDESELECTION))
2739 ed->styleFlags |= ES_NOHIDESEL;
2740 if (props & TXTBIT_SAVESELECTION)
2741 ed->styleFlags |= ES_SAVESEL;
2742 if (props & TXTBIT_VERTICAL)
2743 ed->styleFlags |= ES_VERTICAL;
2744 if (props & TXTBIT_DISABLEDRAG)
2745 ed->styleFlags |= ES_NOOLEDRAGDROP;
2746
2747 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2748
2749 /* Default scrollbar information */
2750 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2751 ed->vert_si.nMin = 0;
2752 ed->vert_si.nMax = 0;
2753 ed->vert_si.nPage = 0;
2754 ed->vert_si.nPos = 0;
2755
2756 ed->horz_si.cbSize = sizeof(SCROLLINFO);
2757 ed->horz_si.nMin = 0;
2758 ed->horz_si.nMax = 0;
2759 ed->horz_si.nPage = 0;
2760 ed->horz_si.nPos = 0;
2761
2762 OleInitialize(NULL);
2763
2764 return ed;
2765 }
2766
2767 static void ME_DestroyEditor(ME_TextEditor *editor)
2768 {
2769 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2770 ME_DisplayItem *p = pFirst, *pNext = NULL;
2771 int i;
2772
2773 ME_ClearTempStyle(editor);
2774 ME_EmptyUndoStack(editor);
2775 while(p) {
2776 pNext = p->next;
2777 ME_DestroyDisplayItem(p);
2778 p = pNext;
2779 }
2780 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2781 for (i=0; i<HFONT_CACHE_SIZE; i++)
2782 {
2783 if (editor->pFontCache[i].hFont)
2784 DeleteObject(editor->pFontCache[i].hFont);
2785 }
2786 if (editor->rgbBackColor != -1)
2787 DeleteObject(editor->hbrBackground);
2788 if(editor->lpOleCallback)
2789 IUnknown_Release(editor->lpOleCallback);
2790 IUnknown_Release(editor->texthost);
2791 OleUninitialize();
2792
2793 FREE_OBJ(editor->pBuffer);
2794 FREE_OBJ(editor->pCursors);
2795
2796 FREE_OBJ(editor);
2797 }
2798
2799 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2800 {
2801 TRACE("\n");
2802 switch (fdwReason)
2803 {
2804 case DLL_PROCESS_ATTACH:
2805 DisableThreadLibraryCalls(hinstDLL);
2806 me_heap = HeapCreate (0, 0x10000, 0);
2807 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2808 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2809 LookupInit();
2810 break;
2811
2812 case DLL_PROCESS_DETACH:
2813 UnregisterClassW(RICHEDIT_CLASS20W, 0);
2814 UnregisterClassW(MSFTEDIT_CLASS, 0);
2815 UnregisterClassA(RICHEDIT_CLASS20A, 0);
2816 UnregisterClassA("RichEdit50A", 0);
2817 if (ME_ListBoxRegistered)
2818 UnregisterClassW(REListBox20W, 0);
2819 if (ME_ComboBoxRegistered)
2820 UnregisterClassW(REComboBox20W, 0);
2821 LookupCleanup();
2822 HeapDestroy (me_heap);
2823 me_heap = NULL;
2824 break;
2825 }
2826 return TRUE;
2827 }
2828
2829
2830 static const char * const edit_messages[] = {
2831 "EM_GETSEL",
2832 "EM_SETSEL",
2833 "EM_GETRECT",
2834 "EM_SETRECT",
2835 "EM_SETRECTNP",
2836 "EM_SCROLL",
2837 "EM_LINESCROLL",
2838 "EM_SCROLLCARET",
2839 "EM_GETMODIFY",
2840 "EM_SETMODIFY",
2841 "EM_GETLINECOUNT",
2842 "EM_LINEINDEX",
2843 "EM_SETHANDLE",
2844 "EM_GETHANDLE",
2845 "EM_GETTHUMB",
2846 "EM_UNKNOWN_BF",
2847 "EM_UNKNOWN_C0",
2848 "EM_LINELENGTH",
2849 "EM_REPLACESEL",
2850 "EM_UNKNOWN_C3",
2851 "EM_GETLINE",
2852 "EM_LIMITTEXT",
2853 "EM_CANUNDO",
2854 "EM_UNDO",
2855 "EM_FMTLINES",
2856 "EM_LINEFROMCHAR",
2857 "EM_UNKNOWN_CA",
2858 "EM_SETTABSTOPS",
2859 "EM_SETPASSWORDCHAR",
2860 "EM_EMPTYUNDOBUFFER",
2861 "EM_GETFIRSTVISIBLELINE",
2862 "EM_SETREADONLY",
2863 "EM_SETWORDBREAKPROC",
2864 "EM_GETWORDBREAKPROC",
2865 "EM_GETPASSWORDCHAR",
2866 "EM_SETMARGINS",
2867 "EM_GETMARGINS",
2868 "EM_GETLIMITTEXT",
2869 "EM_POSFROMCHAR",
2870 "EM_CHARFROMPOS",
2871 "EM_SETIMESTATUS",
2872 "EM_GETIMESTATUS"
2873 };
2874
2875 static const char * const richedit_messages[] = {
2876 "EM_CANPASTE",
2877 "EM_DISPLAYBAND",
2878 "EM_EXGETSEL",
2879 "EM_EXLIMITTEXT",
2880 "EM_EXLINEFROMCHAR",
2881 "EM_EXSETSEL",
2882 "EM_FINDTEXT",
2883 "EM_FORMATRANGE",
2884 "EM_GETCHARFORMAT",
2885 "EM_GETEVENTMASK",
2886 "EM_GETOLEINTERFACE",
2887 "EM_GETPARAFORMAT",
2888 "EM_GETSELTEXT",
2889 "EM_HIDESELECTION",
2890 "EM_PASTESPECIAL",
2891 "EM_REQUESTRESIZE",
2892 "EM_SELECTIONTYPE",
2893 "EM_SETBKGNDCOLOR",
2894 "EM_SETCHARFORMAT",
2895 "EM_SETEVENTMASK",
2896 "EM_SETOLECALLBACK",
2897 "EM_SETPARAFORMAT",
2898 "EM_SETTARGETDEVICE",
2899 "EM_STREAMIN",
2900 "EM_STREAMOUT",
2901 "EM_GETTEXTRANGE",
2902 "EM_FINDWORDBREAK",
2903 "EM_SETOPTIONS",
2904 "EM_GETOPTIONS",
2905 "EM_FINDTEXTEX",
2906 "EM_GETWORDBREAKPROCEX",
2907 "EM_SETWORDBREAKPROCEX",
2908 "EM_SETUNDOLIMIT",
2909 "EM_UNKNOWN_USER_83",
2910 "EM_REDO",
2911 "EM_CANREDO",
2912 "EM_GETUNDONAME",
2913 "EM_GETREDONAME",
2914 "EM_STOPGROUPTYPING",
2915 "EM_SETTEXTMODE",
2916 "EM_GETTEXTMODE",
2917 "EM_AUTOURLDETECT",
2918 "EM_GETAUTOURLDETECT",
2919 "EM_SETPALETTE",
2920 "EM_GETTEXTEX",
2921 "EM_GETTEXTLENGTHEX",
2922 "EM_SHOWSCROLLBAR",
2923 "EM_SETTEXTEX",
2924 "EM_UNKNOWN_USER_98",
2925 "EM_UNKNOWN_USER_99",
2926 "EM_SETPUNCTUATION",
2927 "EM_GETPUNCTUATION",
2928 "EM_SETWORDWRAPMODE",
2929 "EM_GETWORDWRAPMODE",
2930 "EM_SETIMECOLOR",
2931 "EM_GETIMECOLOR",
2932 "EM_SETIMEOPTIONS",
2933 "EM_GETIMEOPTIONS",
2934 "EM_CONVPOSITION",
2935 "EM_UNKNOWN_USER_109",
2936 "EM_UNKNOWN_USER_110",
2937 "EM_UNKNOWN_USER_111",
2938 "EM_UNKNOWN_USER_112",
2939 "EM_UNKNOWN_USER_113",
2940 "EM_UNKNOWN_USER_114",
2941 "EM_UNKNOWN_USER_115",
2942 "EM_UNKNOWN_USER_116",
2943 "EM_UNKNOWN_USER_117",
2944 "EM_UNKNOWN_USER_118",
2945 "EM_UNKNOWN_USER_119",
2946 "EM_SETLANGOPTIONS",
2947 "EM_GETLANGOPTIONS",
2948 "EM_GETIMECOMPMODE",
2949 "EM_FINDTEXTW",
2950 "EM_FINDTEXTEXW",
2951 "EM_RECONVERSION",
2952 "EM_SETIMEMODEBIAS",
2953 "EM_GETIMEMODEBIAS"
2954 };
2955
2956 static const char *
2957 get_msg_name(UINT msg)
2958 {
2959 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2960 return edit_messages[msg - EM_GETSEL];
2961 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2962 return richedit_messages[msg - EM_CANPASTE];
2963 return "";
2964 }
2965
2966 static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2967 {
2968 int x,y;
2969 BOOL isExact;
2970 ME_Cursor cursor; /* The start of the clicked text. */
2971
2972 ENLINK info;
2973 x = (short)LOWORD(lParam);
2974 y = (short)HIWORD(lParam);
2975 ME_CharFromPos(editor, x, y, &cursor, &isExact);
2976 if (!isExact) return;
2977
2978 if (cursor.pRun->member.run.style->fmt.dwMask & CFM_LINK &&
2979 cursor.pRun->member.run.style->fmt.dwEffects & CFE_LINK)
2980 { /* The clicked run has CFE_LINK set */
2981 info.nmhdr.hwndFrom = NULL;
2982 info.nmhdr.idFrom = 0;
2983 info.nmhdr.code = EN_LINK;
2984 info.msg = msg;
2985 info.wParam = wParam;
2986 info.lParam = lParam;
2987 cursor.nOffset = 0;
2988 info.chrg.cpMin = ME_GetCursorOfs(&cursor);
2989 info.chrg.cpMax = info.chrg.cpMin + cursor.pRun->member.run.strText->nLen;
2990 ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
2991 }
2992 }
2993
2994 #define UNSUPPORTED_MSG(e) \
2995 case e: \
2996 FIXME(#e ": stub\n"); \
2997 *phresult = S_FALSE; \
2998 return 0;
2999
3000 /* Handle messages for windowless and windoweded richedit controls.
3001 *
3002 * The LRESULT that is returned is a return value for window procs,
3003 * and the phresult parameter is the COM return code needed by the
3004 * text services interface. */
3005 LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
3006 LPARAM lParam, BOOL unicode, HRESULT* phresult)
3007 {
3008 *phresult = S_OK;
3009
3010 switch(msg) {
3011
3012 UNSUPPORTED_MSG(EM_DISPLAYBAND)
3013 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
3014 UNSUPPORTED_MSG(EM_FMTLINES)
3015 UNSUPPORTED_MSG(EM_FORMATRANGE)
3016 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
3017 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
3018 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
3019 UNSUPPORTED_MSG(EM_GETIMESTATUS)
3020 UNSUPPORTED_MSG(EM_SETIMESTATUS)
3021 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
3022 UNSUPPORTED_MSG(EM_GETREDONAME)
3023 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
3024 UNSUPPORTED_MSG(EM_GETUNDONAME)
3025 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
3026 UNSUPPORTED_MSG(EM_PASTESPECIAL)
3027 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
3028 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
3029 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
3030 UNSUPPORTED_MSG(EM_SETFONTSIZE)
3031 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
3032 UNSUPPORTED_MSG(EM_SETMARGINS)
3033 UNSUPPORTED_MSG(EM_SETPALETTE)
3034 UNSUPPORTED_MSG(EM_SETTABSTOPS)
3035 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
3036 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
3037
3038 /* Messages specific to Richedit controls */
3039
3040 case EM_STREAMIN:
3041 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
3042 case EM_STREAMOUT:
3043 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
3044 case WM_GETDLGCODE:
3045 {
3046 UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
3047 if (lParam)
3048 editor->bDialogMode = TRUE;
3049 if (editor->styleFlags & ES_MULTILINE)
3050 code |= DLGC_WANTMESSAGE;
3051 return code;
3052 }
3053 case EM_EMPTYUNDOBUFFER:
3054 ME_EmptyUndoStack(editor);
3055 return 0;
3056 case EM_GETSEL:
3057 {
3058 /* Note: wParam/lParam can be NULL */
3059 UINT from, to;
3060 PUINT pfrom = wParam ? (PUINT)wParam : &from;
3061 PUINT pto = lParam ? (PUINT)lParam : &to;
3062 ME_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
3063 if ((*pfrom|*pto) & 0xFFFF0000)
3064 return -1;
3065 return MAKELONG(*pfrom,*pto);
3066 }
3067 case EM_EXGETSEL:
3068 {
3069 CHARRANGE *pRange = (CHARRANGE *)lParam;
3070 ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
3071 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
3072 return 0;
3073 }
3074 case EM_SETUNDOLIMIT:
3075 {
3076 if ((int)wParam < 0)
3077 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3078 else
3079 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3080 /* Setting a max stack size keeps wine from getting killed
3081 for hogging memory. Windows allocates all this memory at once, so
3082 no program would realistically set a value above our maximum. */
3083 return editor->nUndoLimit;
3084 }
3085 case EM_CANUNDO:
3086 return editor->pUndoStack != NULL;
3087 case EM_CANREDO:
3088 return editor->pRedoStack != NULL;
3089 case WM_UNDO: /* FIXME: actually not the same */
3090 case EM_UNDO:
3091 return ME_Undo(editor);
3092 case EM_REDO:
3093 return ME_Redo(editor);
3094 case EM_GETOPTIONS:
3095 {
3096 /* these flags are equivalent to the ES_* counterparts */
3097 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3098 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3099 DWORD settings = editor->styleFlags & mask;
3100
3101 return settings;
3102 }
3103 case EM_SETOPTIONS:
3104 {
3105 /* these flags are equivalent to ES_* counterparts, except for
3106 * ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
3107 * but is still stored in editor->styleFlags. */
3108 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3109 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
3110 ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
3111 DWORD settings = mask & editor->styleFlags;
3112 DWORD oldSettings = settings;
3113 DWORD changedSettings;
3114
3115 switch(wParam)
3116 {
3117 case ECOOP_SET:
3118 settings = lParam;
3119 break;
3120 case ECOOP_OR:
3121 settings |= lParam;
3122 break;
3123 case ECOOP_AND:
3124 settings &= lParam;
3125 break;
3126 case ECOOP_XOR:
3127 settings ^= lParam;
3128 }
3129 changedSettings = oldSettings ^ settings;
3130
3131 if (changedSettings) {
3132 editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
3133
3134 if (changedSettings & ECO_SELECTIONBAR)
3135 {
3136 ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
3137 if (settings & ECO_SELECTIONBAR) {
3138 assert(!editor->selofs);
3139 editor->selofs = SELECTIONBAR_WIDTH;
3140 editor->rcFormat.left += editor->selofs;
3141 } else {
3142 editor->rcFormat.left -= editor->selofs;
3143 editor->selofs = 0;
3144 }
3145 ME_RewrapRepaint(editor);
3146 }
3147
3148 if (changedSettings & settings & ECO_VERTICAL)
3149 FIXME("ECO_VERTICAL not implemented yet!\n");
3150 if (changedSettings & settings & ECO_AUTOHSCROLL)
3151 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
3152 if (changedSettings & settings & ECO_AUTOVSCROLL)
3153 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
3154 if (changedSettings & settings & ECO_NOHIDESEL)
3155 FIXME("ECO_NOHIDESEL not implemented yet!\n");
3156 if (changedSettings & settings & ECO_WANTRETURN)
3157 FIXME("ECO_WANTRETURN not implemented yet!\n");
3158 if (changedSettings & settings & ECO_AUTOWORDSELECTION)
3159 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
3160 }
3161
3162 return settings;
3163 }
3164 case EM_SETSEL:
3165 {
3166 ME_InvalidateSelection(editor);
3167 ME_SetSelection(editor, wParam, lParam);
3168 ME_InvalidateSelection(editor);
3169 ITextHost_TxShowCaret(editor->texthost, FALSE);
3170 ME_ShowCaret(editor);
3171 ME_SendSelChange(editor);
3172 return 0;
3173 }
3174 case EM_SETSCROLLPOS:
3175 {
3176 POINT *point = (POINT *)lParam;
3177 ME_ScrollAbs(editor, point->x, point->y);
3178 return 0;
3179 }
3180 case EM_AUTOURLDETECT:
3181 {
3182 if (wParam==1 || wParam ==0)
3183 {
3184 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3185 return 0;
3186 }
3187 return E_INVALIDARG;
3188 }
3189 case EM_GETAUTOURLDETECT:
3190 {
3191 return editor->AutoURLDetect_bEnable;
3192 }
3193 case EM_EXSETSEL:
3194 {
3195 int end;
3196 CHARRANGE range = *(CHARRANGE *)lParam;
3197
3198 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
3199
3200 ME_InvalidateSelection(editor);
3201 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
3202 ME_InvalidateSelection(editor);
3203 ITextHost_TxShowCaret(editor->texthost, FALSE);
3204 ME_ShowCaret(editor);
3205 ME_SendSelChange(editor);
3206
3207 return end;
3208 }
3209 case EM_SHOWSCROLLBAR:
3210 {
3211 DWORD flags;
3212
3213 switch (wParam)
3214 {
3215 case SB_HORZ:
3216 flags = WS_HSCROLL;
3217 break;
3218 case SB_VERT:
3219 flags = WS_VSCROLL;
3220 break;
3221 case SB_BOTH:
3222 flags = WS_HSCROLL|WS_VSCROLL;
3223 break;
3224 default:
3225 return 0;
3226 }
3227
3228 if (lParam) {
3229 editor->styleFlags |= flags;
3230 if (flags & WS_HSCROLL)
3231 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
3232 editor->nTotalWidth > editor->sizeWindow.cx);
3233 if (flags & WS_VSCROLL)
3234 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
3235 editor->nTotalLength > editor->sizeWindow.cy);
3236 } else {
3237 editor->styleFlags &= ~flags;
3238 ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
3239 }
3240 return 0;
3241 }
3242 case EM_SETTEXTEX:
3243 {
3244 LPWSTR wszText;
3245 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3246 size_t len = 0;
3247 int from, to;
3248 ME_Style *style;
3249 BOOL bRtf, bUnicode, bSelection;
3250 int oldModify = editor->nModifyStep;
3251
3252 if (!pStruct) return 0;
3253
3254 /* If we detect ascii rtf at the start of the string,
3255 * we know it isn't unicode. */
3256 bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
3257 !strncmp((char *)lParam, "{\\urtf", 6)));
3258 bUnicode = !bRtf && pStruct->codepage == 1200;
3259
3260 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3261 bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3262 pStruct->flags, pStruct->codepage);
3263
3264 bSelection = (pStruct->flags & ST_SELECTION) != 0;
3265 if (bSelection) {
3266 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3267 style = ME_GetSelectionInsertStyle(editor);
3268 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
3269 } else {
3270 ME_Cursor start;
3271 ME_SetCursorToStart(editor, &start);
3272 ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
3273 style = editor->pBuffer->pDefaultStyle;
3274 }
3275
3276 if (bRtf) {
3277 ME_StreamInRTFString(editor, bSelection, (char *)lParam);
3278 if (bSelection) {
3279 /* FIXME: The length returned is doesn't include the rtf control
3280 * characters, only the actual text. */
3281 len = lParam ? strlen((char *)lParam) : 0;
3282 }
3283 } else {
3284 /* FIXME: make use of pStruct->codepage in the to unicode translation */
3285 wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
3286 len = wszText ? lstrlenW(wszText) : 0;
3287 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3288 ME_EndToUnicode(bUnicode, wszText);
3289 }
3290
3291 if (bSelection) {
3292 ME_ReleaseStyle(style);
3293 ME_UpdateSelectionLinkAttribute(editor);
3294 } else {
3295 ME_Cursor cursor;
3296 len = 1;
3297 ME_SetCursorToStart(editor, &cursor);
3298 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3299 }
3300 ME_CommitUndo(editor);
3301 if (!(pStruct->flags & ST_KEEPUNDO))
3302 {
3303 editor->nModifyStep = oldModify;
3304 ME_EmptyUndoStack(editor);
3305 }
3306 ME_UpdateRepaint(editor);
3307 return len;
3308 }
3309 case EM_SETBKGNDCOLOR:
3310 {
3311 LRESULT lColor;
3312 if (editor->rgbBackColor != -1) {
3313 DeleteObject(editor->hbrBackground);
3314 lColor = editor->rgbBackColor;
3315 }
3316 else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
3317
3318 if (wParam)
3319 {
3320 editor->rgbBackColor = -1;
3321 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
3322 }
3323 else
3324 {
3325 editor->rgbBackColor = lParam;
3326 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
3327 }
3328 ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
3329 ITextHost_TxViewChange(editor->texthost, TRUE);
3330 return lColor;
3331 }
3332 case EM_GETMODIFY:
3333 return editor->nModifyStep == 0 ? 0 : -1;
3334 case EM_SETMODIFY:
3335 {
3336 if (wParam)
3337 editor->nModifyStep = 1;
3338 else
3339 editor->nModifyStep = 0;
3340
3341 return 0;
3342 }
3343 case EM_SETREADONLY:
3344 {
3345 if (wParam)
3346 editor->styleFlags |= ES_READONLY;
3347 else
3348 editor->styleFlags &= ~ES_READONLY;
3349 return 0;
3350 }
3351 case EM_SETEVENTMASK:
3352 {
3353 DWORD nOldMask = editor->nEventMask;
3354
3355 editor->nEventMask = lParam;
3356 return nOldMask;
3357 }
3358 case EM_GETEVENTMASK:
3359 return editor->nEventMask;
3360 case EM_SETCHARFORMAT:
3361 {
3362 CHARFORMAT2W buf, *p;
3363 BOOL bRepaint = TRUE;
3364 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
3365 if (p == NULL) return 0;
3366 if (!wParam)
3367 ME_SetDefaultCharFormat(editor, p);
3368 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
3369 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
3370 return 0;
3371 } else if (wParam == SCF_ALL) {
3372 if (editor->mode & TM_PLAINTEXT)
3373 ME_SetDefaultCharFormat(editor, p);
3374 else {
3375 ME_Cursor start;
3376 ME_SetCursorToStart(editor, &start);
3377 ME_SetCharFormat(editor, &start, NULL, p);
3378 editor->nModifyStep = 1;
3379 }
3380 } else if (editor->mode & TM_PLAINTEXT) {
3381 return 0;
3382 } else {
3383 bRepaint = ME_IsSelection(editor);
3384 ME_SetSelectionCharFormat(editor, p);
3385 if (bRepaint) editor->nModifyStep = 1;
3386 }
3387 ME_CommitUndo(editor);
3388 if (bRepaint)
3389 {
3390 ME_WrapMarkedParagraphs(editor);
3391 ME_UpdateScrollBar(editor);
3392 ME_Repaint(editor);
3393 }
3394 return 1;
3395 }
3396 case EM_GETCHARFORMAT:
3397 {
3398 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3399 if (dst->cbSize != sizeof(CHARFORMATA) &&
3400 dst->cbSize != sizeof(CHARFORMATW) &&
3401 dst->cbSize != sizeof(CHARFORMAT2A) &&
3402 dst->cbSize != sizeof(CHARFORMAT2W))
3403 return 0;
3404 tmp.cbSize = sizeof(tmp);
3405 if (!wParam)
3406 ME_GetDefaultCharFormat(editor, &tmp);
3407 else
3408 ME_GetSelectionCharFormat(editor, &tmp);
3409 ME_CopyToCFAny(dst, &tmp);
3410 return tmp.dwMask;
3411 }
3412 case EM_SETPARAFORMAT:
3413 {
3414 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3415 ME_WrapMarkedParagraphs(editor);
3416 ME_UpdateScrollBar(editor);
3417 ME_Repaint(editor);
3418 ME_CommitUndo(editor);
3419 return result;
3420 }
3421 case EM_GETPARAFORMAT:
3422 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3423 return ((PARAFORMAT2 *)lParam)->dwMask;
3424 case EM_GETFIRSTVISIBLELINE:
3425 {
3426 ME_DisplayItem *p = editor->pBuffer->pFirst;
3427 int y = editor->vert_si.nPos;
3428 int ypara = 0;
3429 int count = 0;
3430 int ystart, yend;
3431 while(p) {
3432 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3433 if (p->type == diTextEnd)
3434 break;
3435 if (p->type == diParagraph) {
3436 ypara = p->member.para.pt.y;
3437 continue;
3438 }
3439 ystart = ypara + p->member.row.pt.y;
3440 yend = ystart + p->member.row.nHeight;
3441 if (y < yend) {
3442 break;
3443 }
3444 count++;
3445 }
3446 return count;
3447 }
3448 case EM_HIDESELECTION:
3449 {
3450 editor->bHideSelection = (wParam != 0);
3451 ME_InvalidateSelection(editor);
3452 return 0;
3453 }
3454 case EM_LINESCROLL:
3455 {
3456 if (!(editor->styleFlags & ES_MULTILINE))
3457 return FALSE;
3458 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3459 return TRUE;
3460 }
3461 case WM_CLEAR:
3462 {
3463 int from, to;
3464 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3465 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3466 ME_CommitUndo(editor);
3467 ME_UpdateRepaint(editor);
3468 return 0;
3469 }
3470 case EM_REPLACESEL:
3471 {
3472 int from, to, nStartCursor;
3473 ME_Style *style;
3474 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3475 size_t len = wszText ? lstrlenW(wszText) : 0;
3476 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3477
3478 nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3479 style = ME_GetSelectionInsertStyle(editor);
3480 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3481 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3482 ME_ReleaseStyle(style);
3483 /* drop temporary style if line end */
3484 /*
3485 * FIXME question: does abc\n mean: put abc,
3486 * clear temp style, put \n? (would require a change)
3487 */
3488 if (len>0 && wszText[len-1] == '\n')
3489 ME_ClearTempStyle(editor);
3490 ME_EndToUnicode(unicode, wszText);
3491 ME_CommitUndo(editor);
3492 ME_UpdateSelectionLinkAttribute(editor);
3493 if (!wParam)
3494 ME_EmptyUndoStack(editor);
3495 ME_UpdateRepaint(editor);
3496 return len;
3497 }
3498 case EM_SCROLLCARET:
3499 ME_EnsureVisible(editor, &editor->pCursors[0]);
3500 return 0;
3501 case WM_SETFONT:
3502 {
3503 LOGFONTW lf;
3504 CHARFORMAT2W fmt;
3505 HDC hDC;
3506 BOOL bRepaint = LOWORD(lParam);
3507 ME_Cursor start;
3508
3509 if (!wParam)
3510 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3511 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3512 hDC = ITextHost_TxGetDC(editor->texthost);
3513 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3514 ITextHost_TxReleaseDC(editor->texthost, hDC);
3515 ME_SetCursorToStart(editor, &start);
3516 ME_SetCharFormat(editor, &start, NULL, &fmt);
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);
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);
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);
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_CommitUndo(editor);
4262 ME_SaveTempStyle(editor);
4263 if (lParam & GCS_RESULTSTR)
4264 {
4265 LPWSTR lpCompStr = NULL;
4266 DWORD dwBufLen;
4267
4268 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4269 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4270 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
4271 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4272 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4273 }
4274 else if (lParam & GCS_COMPSTR)
4275 {
4276 LPWSTR lpCompStr = NULL;
4277 DWORD dwBufLen;
4278
4279 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4280 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4281 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4282 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4283
4284 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4285 ME_SetSelection(editor,editor->imeStartIndex,
4286 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4287 }
4288 ME_ReleaseStyle(style);
4289 ME_UpdateRepaint(editor);
4290 return 0;
4291 }
4292 case WM_IME_ENDCOMPOSITION:
4293 {
4294 ME_DeleteSelection(editor);
4295 editor->imeStartIndex=-1;
4296 return 0;
4297 }
4298 case EM_GETOLEINTERFACE:
4299 {
4300 LPVOID *ppvObj = (LPVOID*) lParam;
4301 return CreateIRichEditOle(editor, ppvObj);
4302 }
4303 case EM_GETPASSWORDCHAR:
4304 {
4305 return editor->cPasswordMask;
4306 }
4307 case EM_SETOLECALLBACK:
4308 if(editor->lpOleCallback)
4309 IUnknown_Release(editor->lpOleCallback);
4310 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4311 if(editor->lpOleCallback)
4312 IUnknown_AddRef(editor->lpOleCallback);
4313 return TRUE;
4314 case EM_GETWORDBREAKPROC:
4315 return (LRESULT)editor->pfnWordBreak;
4316 case EM_SETWORDBREAKPROC:
4317 {
4318 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4319
4320 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4321 return (LRESULT)pfnOld;
4322 }
4323 case EM_GETTEXTMODE:
4324 return editor->mode;
4325 case EM_SETTEXTMODE:
4326 {
4327 LRESULT ret;
4328 int mask = 0;
4329 int changes = 0;
4330 GETTEXTLENGTHEX how;
4331
4332 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
4333 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
4334 how.codepage = unicode ? 1200 : CP_ACP;
4335 ret = ME_GetTextLengthEx(editor, &how);
4336 if (!ret)
4337 {
4338 /*Check for valid wParam*/
4339 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4340 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4341 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4342 return 1;
4343 else
4344 {
4345 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4346 {
4347 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4348 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4349 }
4350 /*FIXME: Currently no support for undo level and code page options*/
4351 editor->mode = (editor->mode & (~mask)) | changes;
4352 return 0;
4353 }
4354 }
4355 return ret;
4356 }
4357 case EM_SETPASSWORDCHAR:
4358 {
4359 editor->cPasswordMask = wParam;
4360 ME_RewrapRepaint(editor);
4361 return 0;
4362 }
4363 case EM_SETTARGETDEVICE:
4364 if (wParam == 0)
4365 {
4366 BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
4367 if (editor->nAvailWidth || editor->bWordWrap != new)
4368 {
4369 editor->bWordWrap = new;
4370 editor->nAvailWidth = 0; /* wrap to client area */
4371 ME_RewrapRepaint(editor);
4372 }
4373 } else {
4374 int width = max(0, lParam);
4375 if ((editor->styleFlags & ES_MULTILINE) &&
4376 (!editor->bWordWrap || editor->nAvailWidth != width))
4377 {
4378 editor->nAvailWidth = width;
4379 editor->bWordWrap = TRUE;
4380 ME_RewrapRepaint(editor);
4381 }
4382 FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
4383 }
4384 return TRUE;
4385 default:
4386 do_default:
4387 *phresult = S_FALSE;
4388 break;
4389 }
4390 return 0L;
4391 }
4392
4393 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
4394 LPARAM lParam, BOOL unicode)
4395 {
4396 ME_TextEditor *editor;
4397 HRESULT hresult;
4398 LRESULT lresult = 0;
4399
4400 TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
4401 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
4402
4403 editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4404 if (!editor)
4405 {
4406 if (msg == WM_NCCREATE)
4407 {
4408 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4409 ITextHost *texthost;
4410
4411 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4412 texthost = ME_CreateTextHost(hWnd, pcs, FALSE);
4413 return texthost != NULL;
4414 }
4415 else if (msg != WM_NCDESTROY)
4416 {
4417 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
4418 return 0;
4419 }
4420 }
4421
4422 switch (msg)
4423 {
4424 case WM_PAINT:
4425 {
4426 HDC hDC;
4427 RECT rc;
4428 PAINTSTRUCT ps;
4429
4430 hDC = BeginPaint(editor->hWnd, &ps);
4431 /* Erase area outside of the formatting rectangle */
4432 if (ps.rcPaint.top < editor->rcFormat.top)
4433 {
4434 rc = ps.rcPaint;
4435 rc.bottom = editor->rcFormat.top;
4436 FillRect(hDC, &rc, editor->hbrBackground);
4437 ps.rcPaint.top = editor->rcFormat.top;
4438 }
4439 if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
4440 rc = ps.rcPaint;
4441 rc.top = editor->rcFormat.bottom;
4442 FillRect(hDC, &rc, editor->hbrBackground);
4443 ps.rcPaint.bottom = editor->rcFormat.bottom;
4444 }
4445 if (ps.rcPaint.left < editor->rcFormat.left) {
4446 rc = ps.rcPaint;
4447 rc.right = editor->rcFormat.left;
4448 FillRect(hDC, &rc, editor->hbrBackground);
4449 ps.rcPaint.left = editor->rcFormat.left;
4450 }
4451 if (ps.rcPaint.right > editor->rcFormat.right) {
4452 rc = ps.rcPaint;
4453 rc.left = editor->rcFormat.right;
4454 FillRect(hDC, &rc, editor->hbrBackground);
4455 ps.rcPaint.right = editor->rcFormat.right;
4456 }
4457
4458 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
4459 EndPaint(editor->hWnd, &ps);
4460 return 0;
4461 }
4462 case WM_ERASEBKGND:
4463 {
4464 HDC hDC = (HDC)wParam;
4465 RECT rc;
4466
4467 if (GetUpdateRect(editor->hWnd, &rc, TRUE))
4468 FillRect(hDC, &rc, editor->hbrBackground);
4469 return 1;
4470 }
4471 case EM_SETOPTIONS:
4472 {
4473 DWORD dwStyle;
4474 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
4475 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
4476 ECO_SELECTIONBAR;
4477 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4478 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4479 dwStyle = (dwStyle & ~mask) | (lresult & mask);
4480 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4481 return lresult;
4482 }
4483 case EM_SETREADONLY:
4484 {
4485 DWORD dwStyle;
4486 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4487 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4488 dwStyle &= ~ES_READONLY;
4489 if (wParam)
4490 dwStyle |= ES_READONLY;
4491 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4492 return lresult;
4493 }
4494 default:
4495 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4496 }
4497
4498 if (hresult == S_FALSE)
4499 lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
4500
4501 TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
4502 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
4503
4504 return lresult;
4505 }
4506
4507 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4508 {
4509 BOOL unicode = TRUE;
4510
4511 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4512 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4513 unicode = FALSE;
4514
4515 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4516 }
4517
4518 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4519 {
4520 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4521 }
4522
4523 /******************************************************************
4524 * RichEditANSIWndProc (RICHED20.10)
4525 */
4526 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4527 {
4528 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4529 }
4530
4531 /******************************************************************
4532 * RichEdit10ANSIWndProc (RICHED20.9)
4533 */
4534 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4535 {
4536 if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
4537 {
4538 ITextHost *texthost;
4539 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4540
4541 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4542 texthost = ME_CreateTextHost(hWnd, pcs, TRUE);
4543 return texthost != NULL;
4544 }
4545 return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4546 }
4547
4548 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4549 {
4550 ITextHost_TxNotify(editor->texthost, nCode, NULL);
4551 }
4552
4553 /* Fill buffer with srcChars unicode characters from the start cursor.
4554 *
4555 * buffer: destination buffer
4556 * buflen: length of buffer in characters excluding the NULL terminator.
4557 * start: start of editor text to copy into buffer.
4558 * srcChars: Number of characters to use from the editor text.
4559 * bCRLF: if true, replaces all end of lines with \r\n pairs.
4560 *
4561 * returns the number of characters written excluding the NULL terminator.
4562 *
4563 * The written text is always NULL terminated.
4564 */
4565 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
4566 const ME_Cursor *start, int srcChars, BOOL bCRLF)
4567 {
4568 ME_DisplayItem *pRun, *pNextRun;
4569 const WCHAR *pStart = buffer;
4570 const WCHAR cr_lf[] = {'\r', '\n', 0};
4571 const WCHAR *str;
4572 int nLen;
4573
4574 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4575 if (editor->bEmulateVersion10) bCRLF = 0;
4576
4577 pRun = start->pRun;
4578 assert(pRun);
4579 pNextRun = ME_FindItemFwd(pRun, diRun);
4580
4581 nLen = pRun->member.run.strText->nLen - start->nOffset;
4582 str = pRun->member.run.strText->szData + start->nOffset;
4583
4584 /* No '\r' is appended to the last paragraph. */
4585 while (srcChars && buflen && pNextRun)
4586 {
4587 int nFlags = pRun->member.run.nFlags;
4588
4589 if (bCRLF && nFlags & MERF_ENDPARA && ~nFlags & MERF_ENDCELL)
4590 {
4591 if (buflen == 1) break;
4592 /* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
4593 * EM_GETTEXTEX, however, this is done for copying text which
4594 * also uses this function. */
4595 srcChars -= min(nLen, srcChars);
4596 nLen = 2;
4597 str = cr_lf;
4598 } else {
4599 nLen = min(nLen, srcChars);
4600 srcChars -= nLen;
4601 }
4602
4603 nLen = min(nLen, buflen);
4604 buflen -= nLen;
4605
4606 CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
4607
4608 buffer += nLen;
4609
4610 pRun = pNextRun;
4611 pNextRun = ME_FindItemFwd(pRun, diRun);
4612
4613 nLen = pRun->member.run.strText->nLen;
4614 str = pRun->member.run.strText->szData;
4615 }
4616 *buffer = 0;
4617 return buffer - pStart;
4618 }
4619
4620 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4621 {
4622 WNDCLASSW wcW;
4623 WNDCLASSA wcA;
4624
4625 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4626 wcW.lpfnWndProc = RichEditWndProcW;
4627 wcW.cbClsExtra = 0;
4628 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4629 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4630 wcW.hIcon = NULL;
4631 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4632 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4633 wcW.lpszMenuName = NULL;
4634
4635 if (is_version_nt())
4636 {
4637 wcW.lpszClassName = RICHEDIT_CLASS20W;
4638 if (!RegisterClassW(&wcW)) return FALSE;
4639 wcW.lpszClassName = MSFTEDIT_CLASS;
4640 if (!RegisterClassW(&wcW)) return FALSE;
4641 }
4642 else
4643 {
4644 /* WNDCLASSA/W have the same layout */
4645 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4646 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4647 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4648 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4649 }
4650
4651 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4652 wcA.lpfnWndProc = RichEditWndProcA;
4653 wcA.cbClsExtra = 0;
4654 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4655 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4656 wcA.hIcon = NULL;
4657 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4658 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4659 wcA.lpszMenuName = NULL;
4660 wcA.lpszClassName = RICHEDIT_CLASS20A;
4661 if (!RegisterClassA(&wcA)) return FALSE;
4662 wcA.lpszClassName = "RichEdit50A";
4663 if (!RegisterClassA(&wcA)) return FALSE;
4664
4665 return TRUE;
4666 }
4667
4668 static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4669 /* FIXME: Not implemented */
4670 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4671 hWnd, msg, get_msg_name(msg), wParam, lParam);
4672 return DefWindowProcW(hWnd, msg, wParam, lParam);
4673 }
4674
4675 static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4676 /* FIXME: Not implemented */
4677 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4678 hWnd, msg, get_msg_name(msg), wParam, lParam);
4679 return DefWindowProcW(hWnd, msg, wParam, lParam);
4680 }
4681
4682 /******************************************************************
4683 * REExtendedRegisterClass (RICHED20.8)
4684 *
4685 * FIXME undocumented
4686 * Need to check for errors and implement controls and callbacks
4687 */
4688 LRESULT WINAPI REExtendedRegisterClass(void)
4689 {
4690 WNDCLASSW wcW;
4691 UINT result;
4692
4693 FIXME("semi stub\n");
4694
4695 wcW.cbClsExtra = 0;
4696 wcW.cbWndExtra = 4;
4697 wcW.hInstance = NULL;
4698 wcW.hIcon = NULL;
4699 wcW.hCursor = NULL;
4700 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4701 wcW.lpszMenuName = NULL;
4702
4703 if (!ME_ListBoxRegistered)
4704 {
4705 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4706 wcW.lpfnWndProc = REListWndProc;
4707 wcW.lpszClassName = REListBox20W;
4708 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4709 }
4710
4711 if (!ME_ComboBoxRegistered)
4712 {
4713 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4714 wcW.lpfnWndProc = REComboWndProc;
4715 wcW.lpszClassName = REComboBox20W;
4716 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4717 }
4718
4719 result = 0;
4720 if (ME_ListBoxRegistered)
4721 result += 1;
4722 if (ME_ComboBoxRegistered)
4723 result += 2;
4724
4725 return result;
4726 }
4727
4728 static BOOL isurlspecial(WCHAR c)
4729 {
4730 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4731 return strchrW( special_chars, c ) != NULL;
4732 }
4733
4734 /**
4735 * This proc takes a selection, and scans it forward in order to select the span
4736 * of a possible URL candidate. A possible URL candidate must start with isalnum
4737 * or one of the following special characters: *|/\+%#@ and must consist entirely
4738 * of the characters allowed to start the URL, plus : (colon) which may occur
4739 * at most once, and not at either end.
4740 */
4741 static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
4742 const ME_Cursor *start,
4743 int nChars,
4744 ME_Cursor *candidate_min,
4745 ME_Cursor *candidate_max)
4746 {
4747 ME_Cursor cursor = *start;
4748 BOOL foundColon = FALSE;
4749 BOOL candidateStarted = FALSE;
4750 WCHAR lastAcceptedChar = '\0';
4751
4752 while (nChars > 0)
4753 {
4754 WCHAR *strStart = cursor.pRun->member.run.strText->szData;
4755 WCHAR *str = strStart + cursor.nOffset;
4756 int nLen = cursor.pRun->member.run.strText->nLen - cursor.nOffset;
4757 nChars -= nLen;
4758
4759 if (~cursor.pRun->member.run.nFlags & MERF_ENDPARA)
4760 {
4761 /* Find start of candidate */
4762 if (!candidateStarted)
4763 {
4764 while (nLen)
4765 {
4766 nLen--;
4767 if (isalnumW(*str) || isurlspecial(*str))
4768 {
4769 cursor.nOffset = str - strStart;
4770 *candidate_min = cursor;
4771 candidateStarted = TRUE;
4772 lastAcceptedChar = *str++;
4773 break;
4774 }
4775 str++;
4776 }
4777 }
4778
4779 /* Find end of candidate */
4780 if (candidateStarted) {
4781 while (nLen)
4782 {
4783 nLen--;
4784 if (*str == ':' && !foundColon) {
4785 foundColon = TRUE;
4786 } else if (!isalnumW(*str) && !isurlspecial(*str)) {
4787 cursor.nOffset = str - strStart;
4788 if (lastAcceptedChar == ':')
4789 ME_MoveCursorChars(editor, &cursor, -1);
4790 *candidate_max = cursor;
4791 return TRUE;
4792 }
4793 lastAcceptedChar = *str++;
4794 }
4795 }
4796 } else {
4797 /* End of paragraph: skip it if before candidate span, or terminates
4798 current active span */
4799 if (candidateStarted) {
4800 if (lastAcceptedChar == ':')
4801 ME_MoveCursorChars(editor, &cursor, -1);
4802 *candidate_max = cursor;
4803 return TRUE;
4804 }
4805 }
4806
4807 /* Reaching this point means no span was found, so get next span */
4808 if (!ME_NextRun(&cursor.pPara, &cursor.pRun)) {
4809 if (candidateStarted) {
4810 /* There are no further runs, so take end of text as end of candidate */
4811 cursor.nOffset = str - strStart;
4812 if (lastAcceptedChar == ':')
4813 ME_MoveCursorChars(editor, &cursor, -1);
4814 *candidate_max = cursor;
4815 return TRUE;
4816 }
4817 *candidate_max = *candidate_min = cursor;
4818 return FALSE;
4819 }
4820 cursor.nOffset = 0;
4821 }
4822
4823 if (candidateStarted) {
4824 /* There are no further runs, so take end of text as end of candidate */
4825 if (lastAcceptedChar == ':')
4826 ME_MoveCursorChars(editor, &cursor, -1);
4827 *candidate_max = cursor;
4828 return TRUE;
4829 }
4830 *candidate_max = *candidate_min = cursor;
4831 return FALSE;
4832 }
4833
4834 /**
4835 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4836 */
4837 static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
4838 {
4839 #define MAX_PREFIX_LEN 9
4840 struct prefix_s {
4841 const WCHAR text[MAX_PREFIX_LEN];
4842 int length;
4843 }prefixes[] = {
4844 {{'p','r','o','s','p','e','r','o',':'}, 9},
4845 {{'t','e','l','n','e','t',':'}, 7},
4846 {{'g','o','p','h','e','r',':'}, 7},
4847 {{'m','a','i','l','t','o',':'}, 7},
4848 {{'h','t','t','p','s',':'}, 6},
4849 {{'f','i','l','e',':'}, 5},
4850 {{'n','e','w','s',':'}, 5},
4851 {{'w','a','i','s',':'}, 5},
4852 {{'n','n','t','p',':'}, 5},
4853 {{'h','t','t','p',':'}, 5},
4854 {{'w','w','w','.'}, 4},
4855 {{'f','t','p',':'}, 4},
4856 };
4857 WCHAR bufferW[MAX_PREFIX_LEN + 1];
4858 unsigned int i;
4859
4860 ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, 0);
4861 for (i = 0; i < sizeof(prefixes) / sizeof(*prefixes); i++)
4862 {
4863 if (nChars < prefixes[i].length) continue;
4864 if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
4865 return TRUE;
4866 }
4867 return FALSE;
4868 #undef MAX_PREFIX_LEN
4869 }
4870
4871 /**
4872 * This proc walks through the indicated selection and evaluates whether each
4873 * section identified by ME_FindNextURLCandidate and in-between sections have
4874 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4875 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4876 *
4877 * Since this function can cause runs to be split, do not depend on the value
4878 * of the start cursor at the end of the function.
4879 *
4880 * nChars may be set to INT_MAX to update to the end of the text.
4881 *
4882 * Returns TRUE if at least one section was modified.
4883 */
4884 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
4885 {
4886 BOOL modified = FALSE;
4887 ME_Cursor startCur = *start;
4888
4889 if (!editor->AutoURLDetect_bEnable) return FALSE;
4890
4891 do
4892 {
4893 CHARFORMAT2W link;
4894 ME_Cursor candidateStart, candidateEnd;
4895
4896 if (ME_FindNextURLCandidate(editor, &startCur, nChars,
4897 &candidateStart, &candidateEnd))
4898 {
4899 /* Section before candidate is not an URL */
4900 int cMin = ME_GetCursorOfs(&candidateStart);
4901 int cMax = ME_GetCursorOfs(&candidateEnd);
4902
4903 if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
4904 candidateStart = candidateEnd;
4905 nChars -= cMax - ME_GetCursorOfs(&startCur);
4906 }
4907 else
4908 {
4909 /* No more candidates until end of selection */
4910 nChars = 0;
4911 }
4912
4913 if (startCur.pRun != candidateStart.pRun ||
4914 startCur.nOffset != candidateStart.nOffset)
4915 {
4916 /* CFE_LINK effect should be consistently unset */
4917 link.cbSize = sizeof(link);
4918 ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
4919 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4920 {
4921 /* CFE_LINK must be unset from this range */
4922 memset(&link, 0, sizeof(CHARFORMAT2W));
4923 link.cbSize = sizeof(link);
4924 link.dwMask = CFM_LINK;
4925 link.dwEffects = 0;
4926 ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
4927 /* Update candidateEnd since setting character formats may split
4928 * runs, which can cause a cursor to be at an invalid offset within
4929 * a split run. */
4930 while (candidateEnd.nOffset >= candidateEnd.pRun->member.run.strText->nLen)
4931 {
4932 candidateEnd.nOffset -= candidateEnd.pRun->member.run.strText->nLen;
4933 candidateEnd.pRun = ME_FindItemFwd(candidateEnd.pRun, diRun);
4934 }
4935 modified = TRUE;
4936 }
4937 }
4938 if (candidateStart.pRun != candidateEnd.pRun ||
4939 candidateStart.nOffset != candidateEnd.nOffset)
4940 {
4941 /* CFE_LINK effect should be consistently set */
4942 link.cbSize = sizeof(link);
4943 ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4944 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4945 {
4946 /* CFE_LINK must be set on this range */
4947 memset(&link, 0, sizeof(CHARFORMAT2W));
4948 link.cbSize = sizeof(link);
4949 link.dwMask = CFM_LINK;
4950 link.dwEffects = CFE_LINK;
4951 ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4952 modified = TRUE;
4953 }
4954 }
4955 startCur = candidateEnd;
4956 } while (nChars > 0);
4957 return modified;
4958 }
useful hacks and other patches not (yet) suitable for mainline