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richedit: Properly restore style after end of rtf group.
[wine/multimedia.git] / dlls / riched20 / editor.c
blobc3cd187d67a4bdd01729516a6b88eccf5c638feb
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
145 - WM_STYLECHANGED (things like read-only flag)
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, int sel_min, int sel_max);
245
246 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
247 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
248 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
249 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
250 static HCURSOR hLeft;
251
252 int me_debug = 0;
253 HANDLE me_heap = NULL;
254
255 static BOOL ME_ListBoxRegistered = FALSE;
256 static BOOL ME_ComboBoxRegistered = FALSE;
257
258 static inline int is_version_nt(void)
259 {
260 return !(GetVersion() & 0x80000000);
261 }
262
263 static ME_TextBuffer *ME_MakeText(void) {
264
265 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
266
267 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
268 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
269
270 p1->prev = NULL;
271 p1->next = p2;
272 p2->prev = p1;
273 p2->next = NULL;
274 p1->member.para.next_para = p2;
275 p2->member.para.prev_para = p1;
276 p2->member.para.nCharOfs = 0;
277
278 buf->pFirst = p1;
279 buf->pLast = p2;
280 buf->pCharStyle = NULL;
281
282 return buf;
283 }
284
285
286 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
287 {
288 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
289 WCHAR *pText;
290
291 TRACE("%08x %p\n", dwFormat, stream);
292
293 do {
294 long nWideChars = 0;
295
296 if (!stream->dwSize)
297 {
298 ME_StreamInFill(stream);
299 if (stream->editstream->dwError)
300 break;
301 if (!stream->dwSize)
302 break;
303 }
304
305 if (!(dwFormat & SF_UNICODE))
306 {
307 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
308 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
309 pText = wszText;
310 }
311 else
312 {
313 nWideChars = stream->dwSize >> 1;
314 pText = (WCHAR *)stream->buffer;
315 }
316
317 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
318 if (stream->dwSize == 0)
319 break;
320 stream->dwSize = 0;
321 } while(1);
322 ME_CommitUndo(editor);
323 ME_UpdateRepaint(editor);
324 return 0;
325 }
326
327 static void ME_ApplyBorderProperties(RTF_Info *info,
328 ME_BorderRect *borderRect,
329 RTFBorder *borderDef)
330 {
331 int i, colorNum;
332 ME_Border *pBorders[] = {&borderRect->top,
333 &borderRect->left,
334 &borderRect->bottom,
335 &borderRect->right};
336 for (i = 0; i < 4; i++)
337 {
338 RTFColor *colorDef = info->colorList;
339 pBorders[i]->width = borderDef[i].width;
340 colorNum = borderDef[i].color;
341 while (colorDef && colorDef->rtfCNum != colorNum)
342 colorDef = colorDef->rtfNextColor;
343 if (colorDef)
344 pBorders[i]->colorRef = RGB(
345 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
346 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
347 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
348 else
349 pBorders[i]->colorRef = RGB(0, 0, 0);
350 }
351 }
352
353 void ME_RTFCharAttrHook(RTF_Info *info)
354 {
355 CHARFORMAT2W fmt;
356 fmt.cbSize = sizeof(fmt);
357 fmt.dwMask = 0;
358 fmt.dwEffects = 0;
359
360 switch(info->rtfMinor)
361 {
362 case rtfPlain:
363 /* FIXME add more flags once they're implemented */
364 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
365 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
366 fmt.yHeight = 12*20; /* 12pt */
367 fmt.wWeight = FW_NORMAL;
368 fmt.bUnderlineType = CFU_UNDERLINENONE;
369 break;
370 case rtfBold:
371 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
372 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
373 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
374 break;
375 case rtfItalic:
376 fmt.dwMask = CFM_ITALIC;
377 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
378 break;
379 case rtfUnderline:
380 fmt.dwMask = CFM_UNDERLINETYPE;
381 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
382 break;
383 case rtfDotUnderline:
384 fmt.dwMask = CFM_UNDERLINETYPE;
385 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
386 break;
387 case rtfDbUnderline:
388 fmt.dwMask = CFM_UNDERLINETYPE;
389 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
390 break;
391 case rtfWordUnderline:
392 fmt.dwMask = CFM_UNDERLINETYPE;
393 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
394 break;
395 case rtfNoUnderline:
396 fmt.dwMask = CFM_UNDERLINETYPE;
397 fmt.bUnderlineType = CFU_UNDERLINENONE;
398 break;
399 case rtfStrikeThru:
400 fmt.dwMask = CFM_STRIKEOUT;
401 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
402 break;
403 case rtfSubScript:
404 case rtfSuperScript:
405 case rtfSubScrShrink:
406 case rtfSuperScrShrink:
407 case rtfNoSuperSub:
408 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
409 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
410 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
411 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
412 break;
413 case rtfInvisible:
414 fmt.dwMask = CFM_HIDDEN;
415 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
416 break;
417 case rtfBackColor:
418 fmt.dwMask = CFM_BACKCOLOR;
419 fmt.dwEffects = 0;
420 if (info->rtfParam == 0)
421 fmt.dwEffects = CFE_AUTOBACKCOLOR;
422 else if (info->rtfParam != rtfNoParam)
423 {
424 RTFColor *c = RTFGetColor(info, info->rtfParam);
425 if (c && c->rtfCBlue >= 0)
426 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
427 else
428 fmt.dwEffects = CFE_AUTOBACKCOLOR;
429 }
430 break;
431 case rtfForeColor:
432 fmt.dwMask = CFM_COLOR;
433 fmt.dwEffects = 0;
434 if (info->rtfParam == 0)
435 fmt.dwEffects = CFE_AUTOCOLOR;
436 else if (info->rtfParam != rtfNoParam)
437 {
438 RTFColor *c = RTFGetColor(info, info->rtfParam);
439 if (c && c->rtfCBlue >= 0)
440 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
441 else {
442 fmt.dwEffects = CFE_AUTOCOLOR;
443 }
444 }
445 break;
446 case rtfFontNum:
447 if (info->rtfParam != rtfNoParam)
448 {
449 RTFFont *f = RTFGetFont(info, info->rtfParam);
450 if (f)
451 {
452 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
453 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
454 fmt.bCharSet = f->rtfFCharSet;
455 fmt.dwMask = CFM_FACE | CFM_CHARSET;
456 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
457 }
458 }
459 break;
460 case rtfFontSize:
461 fmt.dwMask = CFM_SIZE;
462 if (info->rtfParam != rtfNoParam)
463 fmt.yHeight = info->rtfParam*10;
464 break;
465 }
466 if (fmt.dwMask) {
467 ME_Style *style2;
468 RTFFlushOutputBuffer(info);
469 /* FIXME too slow ? how come ? */
470 style2 = ME_ApplyStyle(info->style, &fmt);
471 ME_ReleaseStyle(info->style);
472 info->style = style2;
473 info->styleChanged = TRUE;
474 }
475 }
476
477 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
478 the same tags mean different things in different contexts */
479 void ME_RTFParAttrHook(RTF_Info *info)
480 {
481 PARAFORMAT2 fmt;
482 fmt.cbSize = sizeof(fmt);
483 fmt.dwMask = 0;
484
485 switch(info->rtfMinor)
486 {
487 case rtfParDef: /* restores default paragraph attributes */
488 if (!info->editor->bEmulateVersion10) /* v4.1 */
489 info->borderType = RTFBorderParaLeft;
490 else /* v1.0 - 3.0 */
491 info->borderType = RTFBorderParaTop;
492 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
493 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
494 PFM_STARTINDENT;
495 /* TODO: numbering, shading */
496 fmt.wAlignment = PFA_LEFT;
497 fmt.cTabCount = 0;
498 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
499 fmt.wBorderWidth = fmt.wBorders = 0;
500 fmt.wBorderSpace = 0;
501 fmt.bLineSpacingRule = 0;
502 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
503 fmt.dyLineSpacing = 0;
504 if (!info->editor->bEmulateVersion10) /* v4.1 */
505 {
506 if (info->tableDef && info->tableDef->tableRowStart &&
507 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
508 {
509 ME_Cursor cursor;
510 ME_DisplayItem *para;
511 /* We are just after a table row. */
512 RTFFlushOutputBuffer(info);
513 cursor = info->editor->pCursors[0];
514 para = cursor.pPara;
515 if (para == info->tableDef->tableRowStart->member.para.next_para
516 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
517 {
518 /* Since the table row end, no text has been inserted, and the \intbl
519 * control word has not be used. We can confirm that we are not in a
520 * table anymore.
521 */
522 info->tableDef->tableRowStart = NULL;
523 info->canInheritInTbl = FALSE;
524 }
525 }
526 } else { /* v1.0 - v3.0 */
527 fmt.dwMask |= PFM_TABLE;
528 fmt.wEffects &= ~PFE_TABLE;
529 }
530 break;
531 case rtfNestLevel:
532 if (!info->editor->bEmulateVersion10) /* v4.1 */
533 {
534 while (info->rtfParam > info->nestingLevel) {
535 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
536 ZeroMemory(tableDef, sizeof(RTFTable));
537 tableDef->parent = info->tableDef;
538 info->tableDef = tableDef;
539
540 RTFFlushOutputBuffer(info);
541 if (tableDef->tableRowStart &&
542 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
543 {
544 ME_DisplayItem *para = tableDef->tableRowStart;
545 para = para->member.para.next_para;
546 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
547 tableDef->tableRowStart = para;
548 } else {
549 ME_Cursor cursor;
550 WCHAR endl = '\r';
551 cursor = info->editor->pCursors[0];
552 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
553 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
554 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
555 }
556
557 info->nestingLevel++;
558 }
559 info->canInheritInTbl = FALSE;
560 }
561 break;
562 case rtfInTable:
563 {
564 if (!info->editor->bEmulateVersion10) /* v4.1 */
565 {
566 if (info->nestingLevel < 1)
567 {
568 RTFTable *tableDef;
569 if (!info->tableDef)
570 {
571 info->tableDef = ALLOC_OBJ(RTFTable);
572 ZeroMemory(info->tableDef, sizeof(RTFTable));
573 }
574 tableDef = info->tableDef;
575 RTFFlushOutputBuffer(info);
576 if (tableDef->tableRowStart &&
577 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
578 {
579 ME_DisplayItem *para = tableDef->tableRowStart;
580 para = para->member.para.next_para;
581 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
582 tableDef->tableRowStart = para;
583 } else {
584 ME_Cursor cursor;
585 WCHAR endl = '\r';
586 cursor = info->editor->pCursors[0];
587 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
588 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
589 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
590 }
591 info->nestingLevel = 1;
592 info->canInheritInTbl = TRUE;
593 }
594 return;
595 } else { /* v1.0 - v3.0 */
596 fmt.dwMask |= PFM_TABLE;
597 fmt.wEffects |= PFE_TABLE;
598 }
599 break;
600 }
601 case rtfFirstIndent:
602 ME_GetSelectionParaFormat(info->editor, &fmt);
603 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
604 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
605 fmt.dxOffset = -info->rtfParam;
606 break;
607 case rtfLeftIndent:
608 ME_GetSelectionParaFormat(info->editor, &fmt);
609 fmt.dwMask = PFM_STARTINDENT;
610 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
611 break;
612 case rtfRightIndent:
613 fmt.dwMask = PFM_RIGHTINDENT;
614 fmt.dxRightIndent = info->rtfParam;
615 break;
616 case rtfQuadLeft:
617 case rtfQuadJust:
618 fmt.dwMask = PFM_ALIGNMENT;
619 fmt.wAlignment = PFA_LEFT;
620 break;
621 case rtfQuadRight:
622 fmt.dwMask = PFM_ALIGNMENT;
623 fmt.wAlignment = PFA_RIGHT;
624 break;
625 case rtfQuadCenter:
626 fmt.dwMask = PFM_ALIGNMENT;
627 fmt.wAlignment = PFA_CENTER;
628 break;
629 case rtfTabPos:
630 ME_GetSelectionParaFormat(info->editor, &fmt);
631 if (!(fmt.dwMask & PFM_TABSTOPS))
632 {
633 fmt.cTabCount = 0;
634 }
635 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
636 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
637 fmt.dwMask = PFM_TABSTOPS;
638 break;
639 case rtfKeep:
640 fmt.dwMask = PFM_KEEP;
641 fmt.wEffects = PFE_KEEP;
642 break;
643 case rtfNoWidowControl:
644 fmt.dwMask = PFM_NOWIDOWCONTROL;
645 fmt.wEffects = PFE_NOWIDOWCONTROL;
646 break;
647 case rtfKeepNext:
648 fmt.dwMask = PFM_KEEPNEXT;
649 fmt.wEffects = PFE_KEEPNEXT;
650 break;
651 case rtfSpaceAfter:
652 fmt.dwMask = PFM_SPACEAFTER;
653 fmt.dySpaceAfter = info->rtfParam;
654 break;
655 case rtfSpaceBefore:
656 fmt.dwMask = PFM_SPACEBEFORE;
657 fmt.dySpaceBefore = info->rtfParam;
658 break;
659 case rtfSpaceBetween:
660 fmt.dwMask = PFM_LINESPACING;
661 if ((int)info->rtfParam > 0)
662 {
663 fmt.dyLineSpacing = info->rtfParam;
664 fmt.bLineSpacingRule = 3;
665 }
666 else
667 {
668 fmt.dyLineSpacing = info->rtfParam;
669 fmt.bLineSpacingRule = 4;
670 }
671 case rtfSpaceMultiply:
672 fmt.dwMask = PFM_LINESPACING;
673 fmt.dyLineSpacing = info->rtfParam * 20;
674 fmt.bLineSpacingRule = 5;
675 break;
676 case rtfParBullet:
677 fmt.dwMask = PFM_NUMBERING;
678 fmt.wNumbering = PFN_BULLET;
679 break;
680 case rtfParSimple:
681 fmt.dwMask = PFM_NUMBERING;
682 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
683 break;
684 case rtfParNumDecimal:
685 fmt.dwMask = PFM_NUMBERING;
686 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
687 break;
688 case rtfParNumIndent:
689 fmt.dwMask = PFM_NUMBERINGTAB;
690 fmt.wNumberingTab = info->rtfParam;
691 break;
692 case rtfParNumStartAt:
693 fmt.dwMask = PFM_NUMBERINGSTART;
694 fmt.wNumberingStart = info->rtfParam;
695 break;
696 case rtfBorderLeft:
697 info->borderType = RTFBorderParaLeft;
698 ME_GetSelectionParaFormat(info->editor, &fmt);
699 if (!(fmt.dwMask & PFM_BORDER))
700 {
701 fmt.wBorderSpace = 0;
702 fmt.wBorderWidth = 1;
703 fmt.wBorders = 0;
704 }
705 fmt.wBorders |= 1;
706 fmt.dwMask = PFM_BORDER;
707 break;
708 case rtfBorderRight:
709 info->borderType = RTFBorderParaRight;
710 ME_GetSelectionParaFormat(info->editor, &fmt);
711 if (!(fmt.dwMask & PFM_BORDER))
712 {
713 fmt.wBorderSpace = 0;
714 fmt.wBorderWidth = 1;
715 fmt.wBorders = 0;
716 }
717 fmt.wBorders |= 2;
718 fmt.dwMask = PFM_BORDER;
719 break;
720 case rtfBorderTop:
721 info->borderType = RTFBorderParaTop;
722 ME_GetSelectionParaFormat(info->editor, &fmt);
723 if (!(fmt.dwMask & PFM_BORDER))
724 {
725 fmt.wBorderSpace = 0;
726 fmt.wBorderWidth = 1;
727 fmt.wBorders = 0;
728 }
729 fmt.wBorders |= 4;
730 fmt.dwMask = PFM_BORDER;
731 break;
732 case rtfBorderBottom:
733 info->borderType = RTFBorderParaBottom;
734 ME_GetSelectionParaFormat(info->editor, &fmt);
735 if (!(fmt.dwMask & PFM_BORDER))
736 {
737 fmt.wBorderSpace = 0;
738 fmt.wBorderWidth = 1;
739 fmt.wBorders = 0;
740 }
741 fmt.wBorders |= 8;
742 fmt.dwMask = PFM_BORDER;
743 break;
744 case rtfBorderSingle:
745 ME_GetSelectionParaFormat(info->editor, &fmt);
746 /* we assume that borders have been created before (RTF spec) */
747 fmt.wBorders &= ~0x700;
748 fmt.wBorders |= 1 << 8;
749 fmt.dwMask = PFM_BORDER;
750 break;
751 case rtfBorderThick:
752 ME_GetSelectionParaFormat(info->editor, &fmt);
753 /* we assume that borders have been created before (RTF spec) */
754 fmt.wBorders &= ~0x700;
755 fmt.wBorders |= 2 << 8;
756 fmt.dwMask = PFM_BORDER;
757 break;
758 case rtfBorderShadow:
759 ME_GetSelectionParaFormat(info->editor, &fmt);
760 /* we assume that borders have been created before (RTF spec) */
761 fmt.wBorders &= ~0x700;
762 fmt.wBorders |= 10 << 8;
763 fmt.dwMask = PFM_BORDER;
764 break;
765 case rtfBorderDouble:
766 ME_GetSelectionParaFormat(info->editor, &fmt);
767 /* we assume that borders have been created before (RTF spec) */
768 fmt.wBorders &= ~0x700;
769 fmt.wBorders |= 7 << 8;
770 fmt.dwMask = PFM_BORDER;
771 break;
772 case rtfBorderDot:
773 ME_GetSelectionParaFormat(info->editor, &fmt);
774 /* we assume that borders have been created before (RTF spec) */
775 fmt.wBorders &= ~0x700;
776 fmt.wBorders |= 11 << 8;
777 fmt.dwMask = PFM_BORDER;
778 break;
779 case rtfBorderWidth:
780 {
781 int borderSide = info->borderType & RTFBorderSideMask;
782 RTFTable *tableDef = info->tableDef;
783 ME_GetSelectionParaFormat(info->editor, &fmt);
784 /* we assume that borders have been created before (RTF spec) */
785 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
786 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
787 {
788 RTFBorder *border;
789 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
790 break;
791 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
792 border->width = info->rtfParam;
793 break;
794 }
795 fmt.dwMask = PFM_BORDER;
796 break;
797 }
798 case rtfBorderSpace:
799 ME_GetSelectionParaFormat(info->editor, &fmt);
800 /* we assume that borders have been created before (RTF spec) */
801 fmt.wBorderSpace = info->rtfParam;
802 fmt.dwMask = PFM_BORDER;
803 break;
804 case rtfBorderColor:
805 {
806 RTFTable *tableDef = info->tableDef;
807 int borderSide = info->borderType & RTFBorderSideMask;
808 int borderType = info->borderType & RTFBorderTypeMask;
809 switch(borderType)
810 {
811 case RTFBorderTypePara:
812 if (!info->editor->bEmulateVersion10) /* v4.1 */
813 break;
814 /* v1.0 - 3.0 treat paragraph and row borders the same. */
815 case RTFBorderTypeRow:
816 if (tableDef) {
817 tableDef->border[borderSide].color = info->rtfParam;
818 }
819 break;
820 case RTFBorderTypeCell:
821 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
822 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
823 }
824 break;
825 }
826 break;
827 }
828 }
829 if (fmt.dwMask) {
830 RTFFlushOutputBuffer(info);
831 /* FIXME too slow ? how come ?*/
832 ME_SetSelectionParaFormat(info->editor, &fmt);
833 }
834 }
835
836 void ME_RTFTblAttrHook(RTF_Info *info)
837 {
838 switch (info->rtfMinor)
839 {
840 case rtfRowDef:
841 {
842 if (!info->editor->bEmulateVersion10) /* v4.1 */
843 info->borderType = 0; /* Not sure */
844 else /* v1.0 - 3.0 */
845 info->borderType = RTFBorderRowTop;
846 if (!info->tableDef) {
847 info->tableDef = ME_MakeTableDef(info->editor);
848 } else {
849 ME_InitTableDef(info->editor, info->tableDef);
850 }
851 break;
852 }
853 case rtfCellPos:
854 {
855 int cellNum;
856 if (!info->tableDef)
857 {
858 info->tableDef = ME_MakeTableDef(info->editor);
859 }
860 cellNum = info->tableDef->numCellsDefined;
861 if (cellNum >= MAX_TABLE_CELLS)
862 break;
863 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
864 if (cellNum < MAX_TAB_STOPS) {
865 /* Tab stops were used to store cell positions before v4.1 but v4.1
866 * still seems to set the tabstops without using them. */
867 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
868 PARAFORMAT2 *pFmt = para->member.para.pFmt;
869 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
870 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
871 }
872 info->tableDef->numCellsDefined++;
873 break;
874 }
875 case rtfRowBordTop:
876 info->borderType = RTFBorderRowTop;
877 break;
878 case rtfRowBordLeft:
879 info->borderType = RTFBorderRowLeft;
880 break;
881 case rtfRowBordBottom:
882 info->borderType = RTFBorderRowBottom;
883 break;
884 case rtfRowBordRight:
885 info->borderType = RTFBorderRowRight;
886 break;
887 case rtfCellBordTop:
888 info->borderType = RTFBorderCellTop;
889 break;
890 case rtfCellBordLeft:
891 info->borderType = RTFBorderCellLeft;
892 break;
893 case rtfCellBordBottom:
894 info->borderType = RTFBorderCellBottom;
895 break;
896 case rtfCellBordRight:
897 info->borderType = RTFBorderCellRight;
898 break;
899 case rtfRowGapH:
900 if (info->tableDef)
901 info->tableDef->gapH = info->rtfParam;
902 break;
903 case rtfRowLeftEdge:
904 if (info->tableDef)
905 info->tableDef->leftEdge = info->rtfParam;
906 break;
907 }
908 }
909
910 void ME_RTFSpecialCharHook(RTF_Info *info)
911 {
912 RTFTable *tableDef = info->tableDef;
913 switch (info->rtfMinor)
914 {
915 case rtfNestCell:
916 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
917 break;
918 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
919 case rtfCell:
920 if (!tableDef)
921 break;
922 RTFFlushOutputBuffer(info);
923 if (!info->editor->bEmulateVersion10) { /* v4.1 */
924 if (tableDef->tableRowStart)
925 {
926 if (!info->nestingLevel &&
927 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
928 {
929 ME_DisplayItem *para = tableDef->tableRowStart;
930 para = para->member.para.next_para;
931 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
932 tableDef->tableRowStart = para;
933 info->nestingLevel = 1;
934 }
935 ME_InsertTableCellFromCursor(info->editor);
936 }
937 } else { /* v1.0 - v3.0 */
938 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
939 PARAFORMAT2 *pFmt = para->member.para.pFmt;
940 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
941 tableDef->numCellsInserted < tableDef->numCellsDefined)
942 {
943 WCHAR tab = '\t';
944 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
945 tableDef->numCellsInserted++;
946 }
947 }
948 break;
949 case rtfNestRow:
950 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
951 break;
952 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
953 case rtfRow:
954 {
955 ME_DisplayItem *para, *cell, *run;
956 int i;
957
958 if (!tableDef)
959 break;
960 RTFFlushOutputBuffer(info);
961 if (!info->editor->bEmulateVersion10) { /* v4.1 */
962 if (!tableDef->tableRowStart)
963 break;
964 if (!info->nestingLevel &&
965 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
966 {
967 para = tableDef->tableRowStart;
968 para = para->member.para.next_para;
969 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
970 tableDef->tableRowStart = para;
971 info->nestingLevel++;
972 }
973 para = tableDef->tableRowStart;
974 cell = ME_FindItemFwd(para, diCell);
975 assert(cell && !cell->member.cell.prev_cell);
976 if (tableDef->numCellsDefined < 1)
977 {
978 /* 2000 twips appears to be the cell size that native richedit uses
979 * when no cell sizes are specified. */
980 const int defaultCellSize = 2000;
981 int nRightBoundary = defaultCellSize;
982 cell->member.cell.nRightBoundary = nRightBoundary;
983 while (cell->member.cell.next_cell) {
984 cell = cell->member.cell.next_cell;
985 nRightBoundary += defaultCellSize;
986 cell->member.cell.nRightBoundary = nRightBoundary;
987 }
988 para = ME_InsertTableCellFromCursor(info->editor);
989 cell = para->member.para.pCell;
990 cell->member.cell.nRightBoundary = nRightBoundary;
991 } else {
992 for (i = 0; i < tableDef->numCellsDefined; i++)
993 {
994 RTFCell *cellDef = &tableDef->cells[i];
995 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
996 ME_ApplyBorderProperties(info, &cell->member.cell.border,
997 cellDef->border);
998 cell = cell->member.cell.next_cell;
999 if (!cell)
1000 {
1001 para = ME_InsertTableCellFromCursor(info->editor);
1002 cell = para->member.para.pCell;
1003 }
1004 }
1005 /* Cell for table row delimiter is empty */
1006 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1007 }
1008
1009 run = ME_FindItemFwd(cell, diRun);
1010 if (info->editor->pCursors[0].pRun != run ||
1011 info->editor->pCursors[0].nOffset)
1012 {
1013 int nOfs, nChars;
1014 /* Delete inserted cells that aren't defined. */
1015 info->editor->pCursors[1].pRun = run;
1016 info->editor->pCursors[1].pPara = ME_GetParagraph(run);
1017 info->editor->pCursors[1].nOffset = 0;
1018 nOfs = ME_GetCursorOfs(info->editor, 1);
1019 nChars = ME_GetCursorOfs(info->editor, 0) - nOfs;
1020 ME_InternalDeleteText(info->editor, nOfs, nChars, TRUE);
1021 }
1022
1023 para = ME_InsertTableRowEndFromCursor(info->editor);
1024 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1025 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1026 ME_ApplyBorderProperties(info, &para->member.para.border,
1027 tableDef->border);
1028 info->nestingLevel--;
1029 if (!info->nestingLevel)
1030 {
1031 if (info->canInheritInTbl) {
1032 tableDef->tableRowStart = para;
1033 } else {
1034 while (info->tableDef) {
1035 tableDef = info->tableDef;
1036 info->tableDef = tableDef->parent;
1037 heap_free(tableDef);
1038 }
1039 }
1040 } else {
1041 info->tableDef = tableDef->parent;
1042 heap_free(tableDef);
1043 }
1044 } else { /* v1.0 - v3.0 */
1045 WCHAR endl = '\r';
1046 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
1047 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1048 pFmt->dxOffset = info->tableDef->gapH;
1049 pFmt->dxStartIndent = info->tableDef->leftEdge;
1050
1051 ME_ApplyBorderProperties(info, &para->member.para.border,
1052 tableDef->border);
1053 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1054 {
1055 WCHAR tab = '\t';
1056 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1057 tableDef->numCellsInserted++;
1058 }
1059 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1060 if (!tableDef->numCellsDefined)
1061 pFmt->wEffects &= ~PFE_TABLE;
1062 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1063 tableDef->numCellsInserted = 0;
1064 }
1065 break;
1066 }
1067 case rtfTab:
1068 case rtfPar:
1069 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1070 ME_DisplayItem *para;
1071 PARAFORMAT2 *pFmt;
1072 RTFFlushOutputBuffer(info);
1073 para = info->editor->pCursors[0].pPara;
1074 pFmt = para->member.para.pFmt;
1075 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1076 {
1077 /* rtfPar is treated like a space within a table. */
1078 info->rtfClass = rtfText;
1079 info->rtfMajor = ' ';
1080 }
1081 else if (info->rtfMinor == rtfPar && tableDef)
1082 tableDef->numCellsInserted = 0;
1083 }
1084 break;
1085 }
1086 }
1087
1088 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1089 const SIZEL* sz)
1090 {
1091 LPOLEOBJECT lpObject = NULL;
1092 LPSTORAGE lpStorage = NULL;
1093 LPOLECLIENTSITE lpClientSite = NULL;
1094 LPDATAOBJECT lpDataObject = NULL;
1095 LPOLECACHE lpOleCache = NULL;
1096 STGMEDIUM stgm;
1097 FORMATETC fm;
1098 CLSID clsid;
1099 BOOL ret = FALSE;
1100 DWORD conn;
1101
1102 if (hemf)
1103 {
1104 stgm.tymed = TYMED_ENHMF;
1105 stgm.u.hEnhMetaFile = hemf;
1106 fm.cfFormat = CF_ENHMETAFILE;
1107 }
1108 else if (hbmp)
1109 {
1110 stgm.tymed = TYMED_GDI;
1111 stgm.u.hBitmap = hbmp;
1112 fm.cfFormat = CF_BITMAP;
1113 }
1114 stgm.pUnkForRelease = NULL;
1115
1116 fm.ptd = NULL;
1117 fm.dwAspect = DVASPECT_CONTENT;
1118 fm.lindex = -1;
1119 fm.tymed = stgm.tymed;
1120
1121 if (!info->lpRichEditOle)
1122 {
1123 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1124 }
1125
1126 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1127 #if 0
1128 /* FIXME: enable it when rich-edit properly implements this method */
1129 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1130 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1131 #endif
1132 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1133 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1134 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1135 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1136 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1137 {
1138 REOBJECT reobject;
1139
1140 reobject.cbStruct = sizeof(reobject);
1141 reobject.cp = REO_CP_SELECTION;
1142 reobject.clsid = clsid;
1143 reobject.poleobj = lpObject;
1144 reobject.pstg = lpStorage;
1145 reobject.polesite = lpClientSite;
1146 /* convert from twips to .01 mm */
1147 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1148 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1149 reobject.dvaspect = DVASPECT_CONTENT;
1150 reobject.dwFlags = 0; /* FIXME */
1151 reobject.dwUser = 0;
1152
1153 /* FIXME: could be simpler */
1154 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
1155 }
1156
1157 if (lpObject) IOleObject_Release(lpObject);
1158 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1159 if (lpStorage) IStorage_Release(lpStorage);
1160 if (lpDataObject) IDataObject_Release(lpDataObject);
1161 if (lpOleCache) IOleCache_Release(lpOleCache);
1162
1163 return ret;
1164 }
1165
1166 static void ME_RTFReadPictGroup(RTF_Info *info)
1167 {
1168 SIZEL sz;
1169 BYTE* buffer = NULL;
1170 unsigned bufsz, bufidx;
1171 BOOL flip;
1172 BYTE val;
1173 METAFILEPICT mfp;
1174 HENHMETAFILE hemf;
1175 HBITMAP hbmp;
1176 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1177
1178 RTFGetToken (info);
1179 if (info->rtfClass == rtfEOF)
1180 return;
1181 mfp.mm = MM_TEXT;
1182 /* fetch picture type */
1183 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1184 {
1185 mfp.mm = info->rtfParam;
1186 gfx = gfx_metafile;
1187 }
1188 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1189 {
1190 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1191 gfx = gfx_dib;
1192 }
1193 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1194 {
1195 gfx = gfx_enhmetafile;
1196 }
1197 else
1198 {
1199 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1200 goto skip_group;
1201 }
1202 sz.cx = sz.cy = 0;
1203 /* fetch picture attributes */
1204 for (;;)
1205 {
1206 RTFGetToken (info);
1207 if (info->rtfClass == rtfEOF)
1208 return;
1209 if (info->rtfClass == rtfText)
1210 break;
1211 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1212 {
1213 ERR("Expected picture attribute (%d %d)\n",
1214 info->rtfClass, info->rtfMajor);
1215 goto skip_group;
1216 }
1217 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1218 {
1219 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1220 }
1221 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1222 {
1223 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1224 }
1225 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1226 sz.cx = info->rtfParam;
1227 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1228 sz.cy = info->rtfParam;
1229 else
1230 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1231 }
1232 /* fetch picture data */
1233 bufsz = 1024;
1234 bufidx = 0;
1235 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1236 val = info->rtfMajor;
1237 for (flip = TRUE;; flip = !flip)
1238 {
1239 RTFGetToken (info);
1240 if (info->rtfClass == rtfEOF)
1241 {
1242 HeapFree(GetProcessHeap(), 0, buffer);
1243 return; /* Warn ?? */
1244 }
1245 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1246 break;
1247 if (info->rtfClass != rtfText) goto skip_group;
1248 if (flip)
1249 {
1250 if (bufidx >= bufsz &&
1251 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1252 goto skip_group;
1253 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1254 }
1255 else
1256 val = info->rtfMajor;
1257 }
1258 if (flip) FIXME("wrong hex string\n");
1259
1260 switch (gfx)
1261 {
1262 case gfx_enhmetafile:
1263 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1264 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1265 break;
1266 case gfx_metafile:
1267 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1268 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1269 break;
1270 case gfx_dib:
1271 {
1272 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1273 HDC hdc = GetDC(0);
1274 unsigned nc = bi->bmiHeader.biClrUsed;
1275
1276 /* not quite right, especially for bitfields type of compression */
1277 if (!nc && bi->bmiHeader.biBitCount <= 8)
1278 nc = 1 << bi->bmiHeader.biBitCount;
1279 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1280 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1281 bi, DIB_RGB_COLORS)))
1282 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1283 ReleaseDC(0, hdc);
1284 }
1285 break;
1286 default:
1287 break;
1288 }
1289 HeapFree(GetProcessHeap(), 0, buffer);
1290 RTFRouteToken (info); /* feed "}" back to router */
1291 return;
1292 skip_group:
1293 HeapFree(GetProcessHeap(), 0, buffer);
1294 RTFSkipGroup(info);
1295 RTFRouteToken(info); /* feed "}" back to router */
1296 }
1297
1298 /* for now, lookup the \result part and use it, whatever the object */
1299 static void ME_RTFReadObjectGroup(RTF_Info *info)
1300 {
1301 for (;;)
1302 {
1303 RTFGetToken (info);
1304 if (info->rtfClass == rtfEOF)
1305 return;
1306 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1307 break;
1308 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1309 {
1310 RTFGetToken (info);
1311 if (info->rtfClass == rtfEOF)
1312 return;
1313 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1314 {
1315 int level = 1;
1316
1317 while (RTFGetToken (info) != rtfEOF)
1318 {
1319 if (info->rtfClass == rtfGroup)
1320 {
1321 if (info->rtfMajor == rtfBeginGroup) level++;
1322 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1323 }
1324 RTFRouteToken(info);
1325 }
1326 }
1327 else RTFSkipGroup(info);
1328 continue;
1329 }
1330 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1331 {
1332 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1333 return;
1334 }
1335 }
1336 RTFRouteToken(info); /* feed "}" back to router */
1337 }
1338
1339 static void ME_RTFReadHook(RTF_Info *info)
1340 {
1341 switch(info->rtfClass)
1342 {
1343 case rtfGroup:
1344 switch(info->rtfMajor)
1345 {
1346 case rtfBeginGroup:
1347 if (info->stackTop < maxStack) {
1348 info->stack[info->stackTop].style = info->style;
1349 ME_AddRefStyle(info->style);
1350 info->stack[info->stackTop].codePage = info->codePage;
1351 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1352 }
1353 info->stackTop++;
1354 info->styleChanged = FALSE;
1355 break;
1356 case rtfEndGroup:
1357 {
1358 RTFFlushOutputBuffer(info);
1359 info->stackTop--;
1360 if (info->stackTop<=0) {
1361 info->rtfClass = rtfEOF;
1362 return;
1363 }
1364 assert(info->stackTop >= 0);
1365
1366 ME_ReleaseStyle(info->style);
1367 info->style = info->stack[info->stackTop].style;
1368 ME_AddRefStyle(info->style);
1369 info->codePage = info->stack[info->stackTop].codePage;
1370 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1371 break;
1372 }
1373 }
1374 break;
1375 }
1376 }
1377
1378 void
1379 ME_StreamInFill(ME_InStream *stream)
1380 {
1381 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1382 (BYTE *)stream->buffer,
1383 sizeof(stream->buffer),
1384 (LONG *)&stream->dwSize);
1385 stream->dwUsed = 0;
1386 }
1387
1388 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1389 {
1390 RTF_Info parser;
1391 ME_Style *style;
1392 int from, to, to2, nUndoMode;
1393 int nEventMask = editor->nEventMask;
1394 ME_InStream inStream;
1395 BOOL invalidRTF = FALSE;
1396
1397 TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
1398 editor->nEventMask = 0;
1399
1400 ME_GetSelection(editor, &from, &to);
1401 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1402 style = ME_GetSelectionInsertStyle(editor);
1403
1404 ME_InternalDeleteText(editor, from, 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 }
1430 else {
1431 style = editor->pBuffer->pDefaultStyle;
1432 ME_AddRefStyle(style);
1433 ME_SetSelection(editor, 0, 0);
1434 ME_InternalDeleteText(editor, 0, 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, 1);
1524 nChars = ME_GetCursorOfs(editor, 0) - nOfs;
1525 ME_InternalDeleteText(editor, nOfs, 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 (!inStream.editstream->dwError && parser.stackTop > 0)
1536 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1537
1538 /* Remove last line break, as mandated by tests. This is not affected by
1539 CR/LF counters, since RTF streaming presents only \para tokens, which
1540 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1541 */
1542 if (stripLastCR) {
1543 int newfrom, newto;
1544 ME_GetSelection(editor, &newfrom, &newto);
1545 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1546 WCHAR lastchar[3] = {'\0', '\0'};
1547 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1548
1549 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1550 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1551 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize, FALSE);
1552 }
1553 }
1554 }
1555
1556 style = parser.style;
1557 }
1558 else if (format & SF_TEXT)
1559 ME_StreamInText(editor, format, &inStream, style);
1560 else
1561 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1562 ME_GetSelection(editor, &to, &to2);
1563 /* put the cursor at the top */
1564 if (!(format & SFF_SELECTION))
1565 ME_SetSelection(editor, 0, 0);
1566 }
1567
1568 /* Restore saved undo mode */
1569 editor->nUndoMode = nUndoMode;
1570
1571 /* even if we didn't add an undo, we need to commit anything on the stack */
1572 ME_CommitUndo(editor);
1573
1574 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1575 if (!(format & SFF_SELECTION))
1576 ME_EmptyUndoStack(editor);
1577
1578 ME_ReleaseStyle(style);
1579 editor->nEventMask = nEventMask;
1580 ME_UpdateRepaint(editor);
1581 if (!(format & SFF_SELECTION)) {
1582 ME_ClearTempStyle(editor);
1583 }
1584 ITextHost_TxShowCaret(editor->texthost, FALSE);
1585 ME_MoveCaret(editor);
1586 ITextHost_TxShowCaret(editor->texthost, TRUE);
1587 ME_SendSelChange(editor);
1588 ME_SendRequestResize(editor, FALSE);
1589
1590 return 0;
1591 }
1592
1593
1594 typedef struct tagME_RTFStringStreamStruct
1595 {
1596 char *string;
1597 int pos;
1598 int length;
1599 } ME_RTFStringStreamStruct;
1600
1601 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1602 {
1603 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1604 int count;
1605
1606 count = min(cb, pStruct->length - pStruct->pos);
1607 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1608 pStruct->pos += count;
1609 *pcb = count;
1610 return 0;
1611 }
1612
1613 static void
1614 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1615 {
1616 EDITSTREAM es;
1617 ME_RTFStringStreamStruct data;
1618
1619 data.string = string;
1620 data.length = strlen(string);
1621 data.pos = 0;
1622 es.dwCookie = (DWORD_PTR)&data;
1623 es.pfnCallback = ME_ReadFromRTFString;
1624 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1625 }
1626
1627
1628 static int
1629 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1630 {
1631 const int nLen = lstrlenW(text);
1632 const int nTextLen = ME_GetTextLength(editor);
1633 int nStart, nEnd;
1634 int nMin, nMax;
1635 ME_DisplayItem *item;
1636 ME_DisplayItem *para;
1637 WCHAR wLastChar = ' ';
1638
1639 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1640 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1641
1642 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1643 FIXME("Flags 0x%08x not implemented\n",
1644 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1645
1646 nMin = chrg->cpMin;
1647 if (chrg->cpMax == -1)
1648 nMax = nTextLen;
1649 else
1650 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1651
1652 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1653 if (editor->bEmulateVersion10 && nMax == nTextLen)
1654 {
1655 flags |= FR_DOWN;
1656 }
1657
1658 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1659 if (editor->bEmulateVersion10 && nMax < nMin)
1660 {
1661 if (chrgText)
1662 {
1663 chrgText->cpMin = -1;
1664 chrgText->cpMax = -1;
1665 }
1666 return -1;
1667 }
1668
1669 /* when searching up, if cpMin < cpMax, then instead of searching
1670 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1671 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1672 * case, it is always bigger than cpMin.
1673 */
1674 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1675 {
1676 int nSwap = nMax;
1677
1678 nMax = nMin > nTextLen ? nTextLen : nMin;
1679 if (nMin < nSwap || chrg->cpMax == -1)
1680 nMin = 0;
1681 else
1682 nMin = nSwap;
1683 }
1684
1685 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1686 {
1687 if (chrgText)
1688 chrgText->cpMin = chrgText->cpMax = -1;
1689 return -1;
1690 }
1691
1692 if (flags & FR_DOWN) /* Forward search */
1693 {
1694 /* If possible, find the character before where the search starts */
1695 if ((flags & FR_WHOLEWORD) && nMin)
1696 {
1697 ME_RunOfsFromCharOfs(editor, nMin - 1, NULL, &item, &nStart);
1698 wLastChar = item->member.run.strText->szData[nStart];
1699 }
1700
1701 ME_RunOfsFromCharOfs(editor, nMin, &para, &item, &nStart);
1702
1703 while (item
1704 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1705 {
1706 ME_DisplayItem *pCurItem = item;
1707 int nCurStart = nStart;
1708 int nMatched = 0;
1709
1710 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1711 {
1712 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1713 break;
1714
1715 nMatched++;
1716 if (nMatched == nLen)
1717 {
1718 ME_DisplayItem *pNextItem = pCurItem;
1719 int nNextStart = nCurStart;
1720 WCHAR wNextChar;
1721
1722 /* Check to see if next character is a whitespace */
1723 if (flags & FR_WHOLEWORD)
1724 {
1725 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1726 {
1727 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1728 nNextStart = -nMatched;
1729 }
1730
1731 if (pNextItem)
1732 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1733 else
1734 wNextChar = ' ';
1735
1736 if (isalnumW(wNextChar))
1737 break;
1738 }
1739
1740 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1741 if (chrgText)
1742 {
1743 chrgText->cpMin = nStart;
1744 chrgText->cpMax = nStart + nLen;
1745 }
1746 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1747 return nStart;
1748 }
1749 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1750 {
1751 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1752 nCurStart = -nMatched;
1753 }
1754 }
1755 if (pCurItem)
1756 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1757 else
1758 wLastChar = ' ';
1759
1760 nStart++;
1761 if (nStart == item->member.run.strText->nLen)
1762 {
1763 item = ME_FindItemFwd(item, diRun);
1764 para = ME_GetParagraph(item);
1765 nStart = 0;
1766 }
1767 }
1768 }
1769 else /* Backward search */
1770 {
1771 /* If possible, find the character after where the search ends */
1772 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1773 {
1774 ME_RunOfsFromCharOfs(editor, nMax + 1, NULL, &item, &nEnd);
1775 wLastChar = item->member.run.strText->szData[nEnd];
1776 }
1777
1778 ME_RunOfsFromCharOfs(editor, nMax, &para, &item, &nEnd);
1779
1780 while (item
1781 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1782 {
1783 ME_DisplayItem *pCurItem = item;
1784 int nCurEnd = nEnd;
1785 int nMatched = 0;
1786
1787 if (nCurEnd == 0)
1788 {
1789 pCurItem = ME_FindItemBack(pCurItem, diRun);
1790 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1791 }
1792
1793 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1794 {
1795 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1796 break;
1797
1798 nMatched++;
1799 if (nMatched == nLen)
1800 {
1801 ME_DisplayItem *pPrevItem = pCurItem;
1802 int nPrevEnd = nCurEnd;
1803 WCHAR wPrevChar;
1804
1805 /* Check to see if previous character is a whitespace */
1806 if (flags & FR_WHOLEWORD)
1807 {
1808 if (nPrevEnd - nMatched == 0)
1809 {
1810 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1811 if (pPrevItem)
1812 nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
1813 }
1814
1815 if (pPrevItem)
1816 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1817 else
1818 wPrevChar = ' ';
1819
1820 if (isalnumW(wPrevChar))
1821 break;
1822 }
1823
1824 nStart = ME_GetParagraph(pCurItem)->member.para.nCharOfs
1825 + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1826 if (chrgText)
1827 {
1828 chrgText->cpMin = nStart;
1829 chrgText->cpMax = nStart + nLen;
1830 }
1831 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1832 return nStart;
1833 }
1834 if (nCurEnd - nMatched == 0)
1835 {
1836 pCurItem = ME_FindItemBack(pCurItem, diRun);
1837 /* Don't care about pCurItem becoming NULL here; it's already taken
1838 * care of in the exterior loop condition */
1839 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1840 }
1841 }
1842 if (pCurItem)
1843 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1844 else
1845 wLastChar = ' ';
1846
1847 nEnd--;
1848 if (nEnd < 0)
1849 {
1850 item = ME_FindItemBack(item, diRun);
1851 para = ME_GetParagraph(item);
1852 nEnd = item->member.run.strText->nLen;
1853 }
1854 }
1855 }
1856 TRACE("not found\n");
1857 if (chrgText)
1858 chrgText->cpMin = chrgText->cpMax = -1;
1859 return -1;
1860 }
1861
1862 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
1863 {
1864 int nStart, nCount; /* in chars */
1865
1866 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1867 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1868
1869 if (ex->flags & GT_SELECTION)
1870 {
1871 ME_GetSelection(editor, &nStart, &nCount);
1872 nCount -= nStart;
1873 }
1874 else
1875 {
1876 nStart = 0;
1877 nCount = 0x7fffffff;
1878 }
1879 if (ex->codepage == 1200)
1880 {
1881 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
1882 return ME_GetTextW(editor, (LPWSTR)pText, nStart, nCount, ex->flags & GT_USECRLF);
1883 }
1884 else
1885 {
1886 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1887 we can just take a bigger buffer? :)
1888 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
1889 occurs only in richedit 2.0 mode, in which line breaks have only one CR
1890 */
1891 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1892 LPWSTR buffer;
1893 DWORD buflen = ex->cb;
1894 LRESULT rc;
1895 DWORD flags = 0;
1896
1897 nCount = min(nCount, ex->cb - 1);
1898 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
1899
1900 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
1901 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1,
1902 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
1903 if (rc) rc--; /* do not count 0 terminator */
1904
1905 heap_free(buffer);
1906 return rc;
1907 }
1908 }
1909
1910 static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
1911 int start, int nLen, BOOL unicode)
1912 {
1913 if (unicode) {
1914 return ME_GetTextW(editor, strText, start, nLen, 0);
1915 } else {
1916 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1917 int nChars = ME_GetTextW(editor, p, start, nLen, 0);
1918 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
1919 nLen+1, NULL, NULL);
1920 FREE_OBJ(p);
1921 return nChars;
1922 }
1923 }
1924
1925 typedef struct tagME_GlobalDestStruct
1926 {
1927 HGLOBAL hData;
1928 int nLength;
1929 } ME_GlobalDestStruct;
1930
1931 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1932 {
1933 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1934 int i;
1935 WORD *pSrc, *pDest;
1936
1937 cb = cb >> 1;
1938 pDest = (WORD *)lpBuff;
1939 pSrc = GlobalLock(pData->hData);
1940 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1941 pDest[i] = pSrc[pData->nLength+i];
1942 }
1943 pData->nLength += i;
1944 *pcb = 2*i;
1945 GlobalUnlock(pData->hData);
1946 return 0;
1947 }
1948
1949 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1950 {
1951 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1952 int i;
1953 BYTE *pSrc, *pDest;
1954
1955 pDest = lpBuff;
1956 pSrc = GlobalLock(pData->hData);
1957 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1958 pDest[i] = pSrc[pData->nLength+i];
1959 }
1960 pData->nLength += i;
1961 *pcb = i;
1962 GlobalUnlock(pData->hData);
1963 return 0;
1964 }
1965
1966 static BOOL ME_Paste(ME_TextEditor *editor)
1967 {
1968 DWORD dwFormat = 0;
1969 EDITSTREAM es;
1970 ME_GlobalDestStruct gds;
1971 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1972 UINT cf = 0;
1973
1974 if (IsClipboardFormatAvailable(nRTFFormat))
1975 cf = nRTFFormat, dwFormat = SF_RTF;
1976 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1977 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1978 else
1979 return FALSE;
1980
1981 if (!OpenClipboard(editor->hWnd))
1982 return FALSE;
1983 gds.hData = GetClipboardData(cf);
1984 gds.nLength = 0;
1985 es.dwCookie = (DWORD_PTR)&gds;
1986 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
1987 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
1988
1989 CloseClipboard();
1990 return TRUE;
1991 }
1992
1993 static BOOL ME_Copy(ME_TextEditor *editor, CHARRANGE *range)
1994 {
1995 LPDATAOBJECT dataObj = NULL;
1996 HRESULT hr = S_OK;
1997
1998 if (editor->cPasswordMask)
1999 return FALSE; /* Copying or Cutting masked text isn't allowed */
2000
2001 if(editor->lpOleCallback)
2002 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, range, RECO_COPY, &dataObj);
2003 if(FAILED(hr) || !dataObj)
2004 hr = ME_GetDataObject(editor, range, &dataObj);
2005 if(SUCCEEDED(hr)) {
2006 hr = OleSetClipboard(dataObj);
2007 IDataObject_Release(dataObj);
2008 }
2009 return SUCCEEDED(hr) != 0;
2010 }
2011
2012 /* helper to send a msg filter notification */
2013 static BOOL
2014 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2015 {
2016 MSGFILTER msgf;
2017
2018 if (!editor->hWnd) return FALSE;
2019 msgf.nmhdr.hwndFrom = editor->hWnd;
2020 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2021 msgf.nmhdr.code = EN_MSGFILTER;
2022 msgf.msg = msg;
2023 msgf.wParam = *wParam;
2024 msgf.lParam = *lParam;
2025 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2026 return FALSE;
2027 *wParam = msgf.wParam;
2028 *lParam = msgf.lParam;
2029 msgf.wParam = *wParam;
2030
2031 return TRUE;
2032 }
2033
2034 static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
2035 {
2036 ME_DisplayItem *startPara, *endPara;
2037 ME_DisplayItem *prev_para;
2038 int from, to;
2039
2040 if (!editor->AutoURLDetect_bEnable) return;
2041
2042 ME_GetSelection(editor, &from, &to);
2043
2044 /* Find paragraph previous to the one that contains start cursor */
2045 ME_RunOfsFromCharOfs(editor, from, &startPara, NULL, NULL);
2046 prev_para = startPara->member.para.prev_para;
2047 if (prev_para->type == diParagraph) startPara = prev_para;
2048
2049 /* Find paragraph that contains end cursor */
2050 ME_RunOfsFromCharOfs(editor, to, &endPara, NULL, NULL);
2051 endPara = endPara->member.para.next_para;
2052
2053 ME_UpdateLinkAttribute(editor,
2054 startPara->member.para.nCharOfs,
2055 endPara->member.para.nCharOfs);
2056 }
2057
2058 static BOOL
2059 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2060 {
2061 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2062 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2063
2064 if (editor->bMouseCaptured)
2065 return FALSE;
2066 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2067 editor->nSelectionType = stPosition;
2068
2069 switch (nKey)
2070 {
2071 case VK_LEFT:
2072 case VK_RIGHT:
2073 case VK_HOME:
2074 case VK_END:
2075 editor->nUDArrowX = -1;
2076 /* fall through */
2077 case VK_UP:
2078 case VK_DOWN:
2079 case VK_PRIOR:
2080 case VK_NEXT:
2081 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2082 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2083 return TRUE;
2084 case VK_BACK:
2085 case VK_DELETE:
2086 editor->nUDArrowX = -1;
2087 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2088 if (editor->styleFlags & ES_READONLY)
2089 return FALSE;
2090 if (ME_IsSelection(editor))
2091 {
2092 ME_DeleteSelection(editor);
2093 ME_CommitUndo(editor);
2094 }
2095 else if (nKey == VK_DELETE)
2096 {
2097 /* Delete stops group typing.
2098 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2099 ME_DeleteTextAtCursor(editor, 1, 1);
2100 ME_CommitUndo(editor);
2101 }
2102 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2103 {
2104 BOOL bDeletionSucceeded;
2105 /* Backspace can be grouped for a single undo */
2106 ME_ContinueCoalescingTransaction(editor);
2107 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2108 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2109 /* Deletion was prevented so the cursor is moved back to where it was.
2110 * (e.g. this happens when trying to delete cell boundaries)
2111 */
2112 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2113 }
2114 ME_CommitCoalescingUndo(editor);
2115 }
2116 else
2117 return TRUE;
2118 ME_MoveCursorFromTableRowStartParagraph(editor);
2119 ME_UpdateSelectionLinkAttribute(editor);
2120 ME_UpdateRepaint(editor);
2121 ME_SendRequestResize(editor, FALSE);
2122 return TRUE;
2123 case VK_RETURN:
2124 if (editor->styleFlags & ES_MULTILINE)
2125 {
2126 ME_Cursor cursor = editor->pCursors[0];
2127 ME_DisplayItem *para = cursor.pPara;
2128 int from, to;
2129 const WCHAR endl = '\r';
2130 ME_Style *style;
2131
2132 if (editor->styleFlags & ES_READONLY) {
2133 MessageBeep(MB_ICONERROR);
2134 return TRUE;
2135 }
2136
2137 ME_GetSelection(editor, &from, &to);
2138 if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2139 {
2140 if (!editor->bEmulateVersion10) { /* v4.1 */
2141 if (para->member.para.nFlags & MEPF_ROWEND) {
2142 /* Add a new table row after this row. */
2143 para = ME_AppendTableRow(editor, para);
2144 para = para->member.para.next_para;
2145 editor->pCursors[0].pPara = para;
2146 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2147 editor->pCursors[0].nOffset = 0;
2148 editor->pCursors[1] = editor->pCursors[0];
2149 ME_CommitUndo(editor);
2150 ME_CheckTablesForCorruption(editor);
2151 ME_UpdateRepaint(editor);
2152 return TRUE;
2153 }
2154 else if (para == editor->pCursors[1].pPara &&
2155 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
2156 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
2157 !para->member.para.prev_para->member.para.nCharOfs)
2158 {
2159 /* Insert a newline before the table. */
2160 para = para->member.para.prev_para;
2161 para->member.para.nFlags &= ~MEPF_ROWSTART;
2162 editor->pCursors[0].pPara = para;
2163 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2164 editor->pCursors[1] = editor->pCursors[0];
2165 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2166 editor->pCursors[0].pRun->member.run.style);
2167 para = editor->pBuffer->pFirst->member.para.next_para;
2168 ME_SetDefaultParaFormat(para->member.para.pFmt);
2169 para->member.para.nFlags = MEPF_REWRAP;
2170 editor->pCursors[0].pPara = para;
2171 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2172 editor->pCursors[1] = editor->pCursors[0];
2173 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
2174 ME_CommitCoalescingUndo(editor);
2175 ME_CheckTablesForCorruption(editor);
2176 ME_UpdateRepaint(editor);
2177 return TRUE;
2178 }
2179 } else { /* v1.0 - 3.0 */
2180 ME_DisplayItem *para = cursor.pPara;
2181 if (ME_IsInTable(para))
2182 {
2183 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
2184 {
2185 if (from == to) {
2186 ME_ContinueCoalescingTransaction(editor);
2187 para = ME_AppendTableRow(editor, para);
2188 editor->pCursors[0].pPara = para;
2189 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2190 editor->pCursors[0].nOffset = 0;
2191 editor->pCursors[1] = editor->pCursors[0];
2192 ME_CommitCoalescingUndo(editor);
2193 ME_UpdateRepaint(editor);
2194 return TRUE;
2195 }
2196 } else {
2197 ME_ContinueCoalescingTransaction(editor);
2198 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2199 !ME_IsInTable(para->member.para.prev_para))
2200 {
2201 /* Insert newline before table */
2202 cursor.pRun = ME_FindItemBack(para, diRun);
2203 if (cursor.pRun) {
2204 editor->pCursors[0].pRun = cursor.pRun;
2205 editor->pCursors[0].pPara = para->member.para.prev_para;
2206 }
2207 editor->pCursors[0].nOffset = 0;
2208 editor->pCursors[1] = editor->pCursors[0];
2209 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2210 editor->pCursors[0].pRun->member.run.style);
2211 } else {
2212 editor->pCursors[1] = editor->pCursors[0];
2213 para = ME_AppendTableRow(editor, para);
2214 editor->pCursors[0].pPara = para;
2215 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2216 editor->pCursors[0].nOffset = 0;
2217 editor->pCursors[1] = editor->pCursors[0];
2218 }
2219 ME_CommitCoalescingUndo(editor);
2220 ME_UpdateRepaint(editor);
2221 return TRUE;
2222 }
2223 }
2224 }
2225
2226 style = ME_GetInsertStyle(editor, 0);
2227 ME_SaveTempStyle(editor);
2228 ME_ContinueCoalescingTransaction(editor);
2229 if (shift_is_down)
2230 ME_InsertEndRowFromCursor(editor, 0);
2231 else
2232 ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
2233 ME_ReleaseStyle(style);
2234 ME_CommitCoalescingUndo(editor);
2235 SetCursor(NULL);
2236
2237 ME_UpdateSelectionLinkAttribute(editor);
2238 ME_UpdateRepaint(editor);
2239 }
2240 return TRUE;
2241 }
2242 break;
2243 case 'A':
2244 if (ctrl_is_down)
2245 {
2246 ME_SetSelection(editor, 0, -1);
2247 return TRUE;
2248 }
2249 break;
2250 case 'V':
2251 if (ctrl_is_down)
2252 return ME_Paste(editor);
2253 break;
2254 case 'C':
2255 case 'X':
2256 if (ctrl_is_down)
2257 {
2258 CHARRANGE range;
2259 BOOL result;
2260
2261 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2262 result = ME_Copy(editor, &range);
2263 if (result && nKey == 'X')
2264 {
2265 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
2266 ME_CommitUndo(editor);
2267 ME_UpdateRepaint(editor);
2268 }
2269 return result;
2270 }
2271 break;
2272 case 'Z':
2273 if (ctrl_is_down)
2274 {
2275 ME_Undo(editor);
2276 return TRUE;
2277 }
2278 break;
2279 case 'Y':
2280 if (ctrl_is_down)
2281 {
2282 ME_Redo(editor);
2283 return TRUE;
2284 }
2285 break;
2286
2287 default:
2288 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2289 editor->nUDArrowX = -1;
2290 if (ctrl_is_down)
2291 {
2292 if (nKey == 'W')
2293 {
2294 CHARFORMAT2W chf;
2295 char buf[2048];
2296 chf.cbSize = sizeof(chf);
2297
2298 ME_GetSelectionCharFormat(editor, &chf);
2299 ME_DumpStyleToBuf(&chf, buf);
2300 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2301 }
2302 if (nKey == 'Q')
2303 {
2304 ME_CheckCharOffsets(editor);
2305 }
2306 }
2307 }
2308 return FALSE;
2309 }
2310
2311 static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
2312 LPARAM flags, BOOL unicode)
2313 {
2314 WCHAR wstr;
2315
2316 if (editor->bMouseCaptured)
2317 return 0;
2318
2319 if (unicode)
2320 wstr = (WCHAR)charCode;
2321 else
2322 {
2323 CHAR charA = charCode;
2324 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2325 }
2326
2327 if (editor->styleFlags & ES_READONLY) {
2328 MessageBeep(MB_ICONERROR);
2329 return 0; /* FIXME really 0 ? */
2330 }
2331
2332 if ((unsigned)wstr >= ' ' || wstr == '\t')
2333 {
2334 ME_Cursor cursor = editor->pCursors[0];
2335 ME_DisplayItem *para = cursor.pPara;
2336 int from, to;
2337 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2338 ME_GetSelection(editor, &from, &to);
2339 if (wstr == '\t' &&
2340 /* v4.1 allows tabs to be inserted with ctrl key down */
2341 !(ctrl_is_down && !editor->bEmulateVersion10))
2342 {
2343 ME_DisplayItem *para;
2344 BOOL bSelectedRow = FALSE;
2345
2346 para = cursor.pPara;
2347 if (ME_IsSelection(editor) &&
2348 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2349 to == ME_GetCursorOfs(editor, 0) &&
2350 para->member.para.prev_para->type == diParagraph)
2351 {
2352 para = para->member.para.prev_para;
2353 bSelectedRow = TRUE;
2354 }
2355 if (ME_IsInTable(para))
2356 {
2357 ME_TabPressedInTable(editor, bSelectedRow);
2358 ME_CommitUndo(editor);
2359 return 0;
2360 }
2361 } else if (!editor->bEmulateVersion10) { /* v4.1 */
2362 if (para->member.para.nFlags & MEPF_ROWEND) {
2363 if (from == to) {
2364 para = para->member.para.next_para;
2365 if (para->member.para.nFlags & MEPF_ROWSTART)
2366 para = para->member.para.next_para;
2367 editor->pCursors[0].pPara = para;
2368 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2369 editor->pCursors[0].nOffset = 0;
2370 editor->pCursors[1] = editor->pCursors[0];
2371 }
2372 }
2373 } else { /* v1.0 - 3.0 */
2374 if (ME_IsInTable(cursor.pRun) &&
2375 cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
2376 from == to)
2377 {
2378 /* Text should not be inserted at the end of the table. */
2379 MessageBeep(-1);
2380 return 0;
2381 }
2382 }
2383 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2384 /* WM_CHAR is restricted to nTextLimit */
2385 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2386 {
2387 ME_Style *style = ME_GetInsertStyle(editor, 0);
2388 ME_SaveTempStyle(editor);
2389 ME_ContinueCoalescingTransaction(editor);
2390 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2391 ME_ReleaseStyle(style);
2392 ME_CommitCoalescingUndo(editor);
2393 ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
2394 }
2395
2396 ME_UpdateSelectionLinkAttribute(editor);
2397 ME_UpdateRepaint(editor);
2398 }
2399 return 0;
2400 }
2401
2402 /* Process the message and calculate the new click count.
2403 *
2404 * returns: The click count if it is mouse down event, else returns 0. */
2405 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2406 LPARAM lParam)
2407 {
2408 static int clickNum = 0;
2409 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2410 return 0;
2411
2412 if ((msg == WM_LBUTTONDBLCLK) ||
2413 (msg == WM_RBUTTONDBLCLK) ||
2414 (msg == WM_MBUTTONDBLCLK) ||
2415 (msg == WM_XBUTTONDBLCLK))
2416 {
2417 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2418 }
2419
2420 if ((msg == WM_LBUTTONDOWN) ||
2421 (msg == WM_RBUTTONDOWN) ||
2422 (msg == WM_MBUTTONDOWN) ||
2423 (msg == WM_XBUTTONDOWN))
2424 {
2425 static MSG prevClickMsg;
2426 MSG clickMsg;
2427 /* Compare the editor instead of the hwnd so that the this
2428 * can still be done for windowless richedit controls. */
2429 clickMsg.hwnd = (HWND)editor;
2430 clickMsg.message = msg;
2431 clickMsg.wParam = wParam;
2432 clickMsg.lParam = lParam;
2433 clickMsg.time = GetMessageTime();
2434 clickMsg.pt.x = (short)LOWORD(lParam);
2435 clickMsg.pt.y = (short)HIWORD(lParam);
2436 if ((clickNum != 0) &&
2437 (clickMsg.message == prevClickMsg.message) &&
2438 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2439 (clickMsg.wParam == prevClickMsg.wParam) &&
2440 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2441 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2442 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2443 {
2444 clickNum++;
2445 } else {
2446 clickNum = 1;
2447 }
2448 prevClickMsg = clickMsg;
2449 } else {
2450 return 0;
2451 }
2452 return clickNum;
2453 }
2454
2455 static BOOL ME_SetCursor(ME_TextEditor *editor)
2456 {
2457 POINT pt;
2458 BOOL isExact;
2459 int offset;
2460 SCROLLBARINFO sbi;
2461 DWORD messagePos = GetMessagePos();
2462 pt.x = (short)LOWORD(messagePos);
2463 pt.y = (short)HIWORD(messagePos);
2464
2465 if (editor->hWnd)
2466 {
2467 sbi.cbSize = sizeof(sbi);
2468 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2469 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2470 PtInRect(&sbi.rcScrollBar, pt))
2471 {
2472 ITextHost_TxSetCursor(editor->texthost,
2473 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2474 return TRUE;
2475 }
2476 sbi.cbSize = sizeof(sbi);
2477 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2478 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2479 PtInRect(&sbi.rcScrollBar, pt))
2480 {
2481 ITextHost_TxSetCursor(editor->texthost,
2482 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2483 return TRUE;
2484 }
2485 }
2486 ITextHost_TxScreenToClient(editor->texthost, &pt);
2487
2488 if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
2489 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2490 return TRUE;
2491 }
2492 if (!editor->bEmulateVersion10 /* v4.1 */ &&
2493 pt.y < editor->rcFormat.top &&
2494 pt.x < editor->rcFormat.left)
2495 {
2496 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2497 return TRUE;
2498 }
2499 if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
2500 {
2501 if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
2502 ITextHost_TxSetCursor(editor->texthost,
2503 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2504 else /* v4.1 */
2505 ITextHost_TxSetCursor(editor->texthost,
2506 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2507 return TRUE;
2508 }
2509 if (pt.x < editor->rcFormat.left)
2510 {
2511 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2512 return TRUE;
2513 }
2514 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
2515 if (isExact)
2516 {
2517 ME_Cursor cursor;
2518 ME_Run *run;
2519
2520 ME_CursorFromCharOfs(editor, offset, &cursor);
2521 run = &cursor.pRun->member.run;
2522 if (run->style->fmt.dwMask & CFM_LINK &&
2523 run->style->fmt.dwEffects & CFE_LINK)
2524 {
2525 ITextHost_TxSetCursor(editor->texthost,
2526 LoadCursorW(NULL, (WCHAR*)IDC_HAND),
2527 FALSE);
2528 return TRUE;
2529 }
2530
2531 if (ME_IsSelection(editor))
2532 {
2533 int selStart, selEnd;
2534 ME_GetSelection(editor, &selStart, &selEnd);
2535 if (selStart <= offset && selEnd >= offset) {
2536 ITextHost_TxSetCursor(editor->texthost,
2537 LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
2538 FALSE);
2539 return TRUE;
2540 }
2541 }
2542 }
2543 ITextHost_TxSetCursor(editor->texthost,
2544 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2545 return TRUE;
2546 }
2547
2548 static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
2549 {
2550 ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
2551 editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
2552 editor->rcFormat.left += 1 + editor->selofs;
2553 editor->rcFormat.right -= 1;
2554 }
2555
2556 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2557 {
2558 CHARRANGE selrange;
2559 HMENU menu;
2560 int seltype = 0;
2561 if(!editor->lpOleCallback || !editor->hWnd)
2562 return FALSE;
2563 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
2564 if(selrange.cpMin == selrange.cpMax)
2565 seltype |= SEL_EMPTY;
2566 else
2567 {
2568 /* FIXME: Handle objects */
2569 seltype |= SEL_TEXT;
2570 if(selrange.cpMax-selrange.cpMin > 1)
2571 seltype |= SEL_MULTICHAR;
2572 }
2573 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2574 {
2575 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
2576 DestroyMenu(menu);
2577 }
2578 return TRUE;
2579 }
2580
2581 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
2582 {
2583 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2584 int i;
2585 DWORD props;
2586 LONG selbarwidth;
2587
2588 ed->hWnd = NULL;
2589 ed->texthost = texthost;
2590 ed->bEmulateVersion10 = bEmulateVersion10;
2591 ITextHost_TxGetPropertyBits(texthost,
2592 (TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
2593 TXTBIT_READONLY|TXTBIT_USEPASSWORD|
2594 TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
2595 TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
2596 TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
2597 &props);
2598 ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
2599 ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
2600 ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
2601 ed->pBuffer = ME_MakeText();
2602 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2603 ME_MakeFirstParagraph(ed);
2604 /* The four cursors are for:
2605 * 0 - The position where the caret is shown
2606 * 1 - The anchored end of the selection (for normal selection)
2607 * 2 & 3 - The anchored start and end respectively for word, line,
2608 * or paragraph selection.
2609 */
2610 ed->nCursors = 4;
2611 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2612 ed->pCursors[0].pPara = ed->pBuffer->pFirst->member.para.next_para;
2613 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pCursors[0].pPara, diRun);
2614 ed->pCursors[0].nOffset = 0;
2615 ed->pCursors[1] = ed->pCursors[0];
2616 ed->pCursors[2] = ed->pCursors[0];
2617 ed->pCursors[3] = ed->pCursors[1];
2618 ed->nLastTotalLength = ed->nTotalLength = 0;
2619 ed->nLastTotalWidth = ed->nTotalWidth = 0;
2620 ed->nUDArrowX = -1;
2621 ed->nSequence = 0;
2622 ed->rgbBackColor = -1;
2623 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2624 ed->bCaretAtEnd = FALSE;
2625 ed->nEventMask = 0;
2626 ed->nModifyStep = 0;
2627 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2628 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2629 ed->nUndoStackSize = 0;
2630 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2631 ed->nUndoMode = umAddToUndo;
2632 ed->nParagraphs = 1;
2633 ed->nLastSelStart = ed->nLastSelEnd = 0;
2634 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
2635 ed->nAvailWidth = 0; /* wrap to client area */
2636 ed->bHideSelection = FALSE;
2637 ed->pfnWordBreak = NULL;
2638 ed->lpOleCallback = NULL;
2639 ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2640 ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
2641 ed->AutoURLDetect_bEnable = FALSE;
2642 ed->bHaveFocus = FALSE;
2643 ed->bMouseCaptured = FALSE;
2644 for (i=0; i<HFONT_CACHE_SIZE; i++)
2645 {
2646 ed->pFontCache[i].nRefs = 0;
2647 ed->pFontCache[i].nAge = 0;
2648 ed->pFontCache[i].hFont = NULL;
2649 }
2650
2651 ME_CheckCharOffsets(ed);
2652 ed->bDefaultFormatRect = TRUE;
2653 ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
2654 if (selbarwidth) {
2655 /* FIXME: Convert selbarwidth from HIMETRIC to pixels */
2656 ed->selofs = SELECTIONBAR_WIDTH;
2657 ed->styleFlags |= ES_SELECTIONBAR;
2658 } else {
2659 ed->selofs = 0;
2660 }
2661 ed->nSelectionType = stPosition;
2662
2663 ed->cPasswordMask = 0;
2664 if (props & TXTBIT_USEPASSWORD)
2665 ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
2666
2667 if (props & TXTBIT_AUTOWORDSEL)
2668 ed->styleFlags |= ECO_AUTOWORDSELECTION;
2669 if (props & TXTBIT_MULTILINE) {
2670 ed->styleFlags |= ES_MULTILINE;
2671 ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
2672 } else {
2673 ed->bWordWrap = FALSE;
2674 }
2675 if (props & TXTBIT_READONLY)
2676 ed->styleFlags |= ES_READONLY;
2677 if (!(props & TXTBIT_HIDESELECTION))
2678 ed->styleFlags |= ES_NOHIDESEL;
2679 if (props & TXTBIT_SAVESELECTION)
2680 ed->styleFlags |= ES_SAVESEL;
2681 if (props & TXTBIT_VERTICAL)
2682 ed->styleFlags |= ES_VERTICAL;
2683 if (props & TXTBIT_DISABLEDRAG)
2684 ed->styleFlags |= ES_NOOLEDRAGDROP;
2685
2686 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2687
2688 /* Default scrollbar information */
2689 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2690 ed->vert_si.nMin = 0;
2691 ed->vert_si.nMax = 0;
2692 ed->vert_si.nPage = 0;
2693 ed->vert_si.nPos = 0;
2694
2695 ed->horz_si.cbSize = sizeof(SCROLLINFO);
2696 ed->horz_si.nMin = 0;
2697 ed->horz_si.nMax = 0;
2698 ed->horz_si.nPage = 0;
2699 ed->horz_si.nPos = 0;
2700
2701 OleInitialize(NULL);
2702
2703 return ed;
2704 }
2705
2706 static void ME_DestroyEditor(ME_TextEditor *editor)
2707 {
2708 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2709 ME_DisplayItem *p = pFirst, *pNext = NULL;
2710 int i;
2711
2712 ME_ClearTempStyle(editor);
2713 ME_EmptyUndoStack(editor);
2714 while(p) {
2715 pNext = p->next;
2716 ME_DestroyDisplayItem(p);
2717 p = pNext;
2718 }
2719 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2720 for (i=0; i<HFONT_CACHE_SIZE; i++)
2721 {
2722 if (editor->pFontCache[i].hFont)
2723 DeleteObject(editor->pFontCache[i].hFont);
2724 }
2725 if (editor->rgbBackColor != -1)
2726 DeleteObject(editor->hbrBackground);
2727 if(editor->lpOleCallback)
2728 IUnknown_Release(editor->lpOleCallback);
2729 IUnknown_Release(editor->texthost);
2730 OleUninitialize();
2731
2732 FREE_OBJ(editor->pBuffer);
2733 FREE_OBJ(editor->pCursors);
2734
2735 FREE_OBJ(editor);
2736 }
2737
2738 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2739 {
2740 TRACE("\n");
2741 switch (fdwReason)
2742 {
2743 case DLL_PROCESS_ATTACH:
2744 DisableThreadLibraryCalls(hinstDLL);
2745 me_heap = HeapCreate (0, 0x10000, 0);
2746 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2747 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2748 LookupInit();
2749 break;
2750
2751 case DLL_PROCESS_DETACH:
2752 UnregisterClassW(RichEdit20W, 0);
2753 UnregisterClassW(RichEdit50W, 0);
2754 UnregisterClassA("RichEdit20A", 0);
2755 UnregisterClassA("RichEdit50A", 0);
2756 if (ME_ListBoxRegistered)
2757 UnregisterClassW(REListBox20W, 0);
2758 if (ME_ComboBoxRegistered)
2759 UnregisterClassW(REComboBox20W, 0);
2760 LookupCleanup();
2761 HeapDestroy (me_heap);
2762 me_heap = NULL;
2763 break;
2764 }
2765 return TRUE;
2766 }
2767
2768
2769 static const char * const edit_messages[] = {
2770 "EM_GETSEL",
2771 "EM_SETSEL",
2772 "EM_GETRECT",
2773 "EM_SETRECT",
2774 "EM_SETRECTNP",
2775 "EM_SCROLL",
2776 "EM_LINESCROLL",
2777 "EM_SCROLLCARET",
2778 "EM_GETMODIFY",
2779 "EM_SETMODIFY",
2780 "EM_GETLINECOUNT",
2781 "EM_LINEINDEX",
2782 "EM_SETHANDLE",
2783 "EM_GETHANDLE",
2784 "EM_GETTHUMB",
2785 "EM_UNKNOWN_BF",
2786 "EM_UNKNOWN_C0",
2787 "EM_LINELENGTH",
2788 "EM_REPLACESEL",
2789 "EM_UNKNOWN_C3",
2790 "EM_GETLINE",
2791 "EM_LIMITTEXT",
2792 "EM_CANUNDO",
2793 "EM_UNDO",
2794 "EM_FMTLINES",
2795 "EM_LINEFROMCHAR",
2796 "EM_UNKNOWN_CA",
2797 "EM_SETTABSTOPS",
2798 "EM_SETPASSWORDCHAR",
2799 "EM_EMPTYUNDOBUFFER",
2800 "EM_GETFIRSTVISIBLELINE",
2801 "EM_SETREADONLY",
2802 "EM_SETWORDBREAKPROC",
2803 "EM_GETWORDBREAKPROC",
2804 "EM_GETPASSWORDCHAR",
2805 "EM_SETMARGINS",
2806 "EM_GETMARGINS",
2807 "EM_GETLIMITTEXT",
2808 "EM_POSFROMCHAR",
2809 "EM_CHARFROMPOS",
2810 "EM_SETIMESTATUS",
2811 "EM_GETIMESTATUS"
2812 };
2813
2814 static const char * const richedit_messages[] = {
2815 "EM_CANPASTE",
2816 "EM_DISPLAYBAND",
2817 "EM_EXGETSEL",
2818 "EM_EXLIMITTEXT",
2819 "EM_EXLINEFROMCHAR",
2820 "EM_EXSETSEL",
2821 "EM_FINDTEXT",
2822 "EM_FORMATRANGE",
2823 "EM_GETCHARFORMAT",
2824 "EM_GETEVENTMASK",
2825 "EM_GETOLEINTERFACE",
2826 "EM_GETPARAFORMAT",
2827 "EM_GETSELTEXT",
2828 "EM_HIDESELECTION",
2829 "EM_PASTESPECIAL",
2830 "EM_REQUESTRESIZE",
2831 "EM_SELECTIONTYPE",
2832 "EM_SETBKGNDCOLOR",
2833 "EM_SETCHARFORMAT",
2834 "EM_SETEVENTMASK",
2835 "EM_SETOLECALLBACK",
2836 "EM_SETPARAFORMAT",
2837 "EM_SETTARGETDEVICE",
2838 "EM_STREAMIN",
2839 "EM_STREAMOUT",
2840 "EM_GETTEXTRANGE",
2841 "EM_FINDWORDBREAK",
2842 "EM_SETOPTIONS",
2843 "EM_GETOPTIONS",
2844 "EM_FINDTEXTEX",
2845 "EM_GETWORDBREAKPROCEX",
2846 "EM_SETWORDBREAKPROCEX",
2847 "EM_SETUNDOLIMIT",
2848 "EM_UNKNOWN_USER_83",
2849 "EM_REDO",
2850 "EM_CANREDO",
2851 "EM_GETUNDONAME",
2852 "EM_GETREDONAME",
2853 "EM_STOPGROUPTYPING",
2854 "EM_SETTEXTMODE",
2855 "EM_GETTEXTMODE",
2856 "EM_AUTOURLDETECT",
2857 "EM_GETAUTOURLDETECT",
2858 "EM_SETPALETTE",
2859 "EM_GETTEXTEX",
2860 "EM_GETTEXTLENGTHEX",
2861 "EM_SHOWSCROLLBAR",
2862 "EM_SETTEXTEX",
2863 "EM_UNKNOWN_USER_98",
2864 "EM_UNKNOWN_USER_99",
2865 "EM_SETPUNCTUATION",
2866 "EM_GETPUNCTUATION",
2867 "EM_SETWORDWRAPMODE",
2868 "EM_GETWORDWRAPMODE",
2869 "EM_SETIMECOLOR",
2870 "EM_GETIMECOLOR",
2871 "EM_SETIMEOPTIONS",
2872 "EM_GETIMEOPTIONS",
2873 "EM_CONVPOSITION",
2874 "EM_UNKNOWN_USER_109",
2875 "EM_UNKNOWN_USER_110",
2876 "EM_UNKNOWN_USER_111",
2877 "EM_UNKNOWN_USER_112",
2878 "EM_UNKNOWN_USER_113",
2879 "EM_UNKNOWN_USER_114",
2880 "EM_UNKNOWN_USER_115",
2881 "EM_UNKNOWN_USER_116",
2882 "EM_UNKNOWN_USER_117",
2883 "EM_UNKNOWN_USER_118",
2884 "EM_UNKNOWN_USER_119",
2885 "EM_SETLANGOPTIONS",
2886 "EM_GETLANGOPTIONS",
2887 "EM_GETIMECOMPMODE",
2888 "EM_FINDTEXTW",
2889 "EM_FINDTEXTEXW",
2890 "EM_RECONVERSION",
2891 "EM_SETIMEMODEBIAS",
2892 "EM_GETIMEMODEBIAS"
2893 };
2894
2895 static const char *
2896 get_msg_name(UINT msg)
2897 {
2898 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2899 return edit_messages[msg - EM_GETSEL];
2900 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2901 return richedit_messages[msg - EM_CANPASTE];
2902 return "";
2903 }
2904
2905 static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2906 {
2907 int x,y;
2908 ME_DisplayItem *para, *run;
2909 BOOL isExact;
2910 int nCharOfs; /* The start of the clicked text. Absolute character offset */
2911
2912 ENLINK info;
2913 x = (short)LOWORD(lParam);
2914 y = (short)HIWORD(lParam);
2915 nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
2916 if (!isExact) return;
2917
2918 ME_RunOfsFromCharOfs(editor, nCharOfs, &para, &run, NULL);
2919
2920 if ((run->member.run.style->fmt.dwMask & CFM_LINK)
2921 && (run->member.run.style->fmt.dwEffects & CFE_LINK))
2922 { /* The clicked run has CFE_LINK set */
2923 info.nmhdr.hwndFrom = editor->hWnd;
2924 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2925 info.nmhdr.code = EN_LINK;
2926 info.msg = msg;
2927 info.wParam = wParam;
2928 info.lParam = lParam;
2929 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor, para, run, 0);
2930 info.chrg.cpMax = info.chrg.cpMin + run->member.run.strText->nLen;
2931 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
2932 }
2933 }
2934
2935 #define UNSUPPORTED_MSG(e) \
2936 case e: \
2937 FIXME(#e ": stub\n"); \
2938 *phresult = S_FALSE; \
2939 return 0;
2940
2941 /* Handle messages for windowless and windoweded richedit controls.
2942 *
2943 * The LRESULT that is returned is a return value for window procs,
2944 * and the phresult parameter is the COM return code needed by the
2945 * text services interface. */
2946 LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2947 LPARAM lParam, BOOL unicode, HRESULT* phresult)
2948 {
2949 *phresult = S_OK;
2950
2951 switch(msg) {
2952
2953 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2954 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2955 UNSUPPORTED_MSG(EM_FMTLINES)
2956 UNSUPPORTED_MSG(EM_FORMATRANGE)
2957 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2958 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2959 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2960 UNSUPPORTED_MSG(EM_GETIMESTATUS)
2961 UNSUPPORTED_MSG(EM_SETIMESTATUS)
2962 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2963 UNSUPPORTED_MSG(EM_GETREDONAME)
2964 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2965 UNSUPPORTED_MSG(EM_GETUNDONAME)
2966 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2967 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2968 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2969 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2970 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2971 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2972 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2973 UNSUPPORTED_MSG(EM_SETMARGINS)
2974 UNSUPPORTED_MSG(EM_SETPALETTE)
2975 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2976 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2977 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2978 UNSUPPORTED_MSG(WM_STYLECHANGING)
2979 UNSUPPORTED_MSG(WM_STYLECHANGED)
2980
2981 /* Messages specific to Richedit controls */
2982
2983 case EM_STREAMIN:
2984 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2985 case EM_STREAMOUT:
2986 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2987 case WM_GETDLGCODE:
2988 {
2989 UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
2990 if (editor->styleFlags & ES_MULTILINE)
2991 code |= DLGC_WANTMESSAGE;
2992 return code;
2993 }
2994 case EM_EMPTYUNDOBUFFER:
2995 ME_EmptyUndoStack(editor);
2996 return 0;
2997 case EM_GETSEL:
2998 {
2999 /* Note: wParam/lParam can be NULL */
3000 UINT from, to;
3001 PUINT pfrom = wParam ? (PUINT)wParam : &from;
3002 PUINT pto = lParam ? (PUINT)lParam : &to;
3003 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
3004 if ((*pfrom|*pto) & 0xFFFF0000)
3005 return -1;
3006 return MAKELONG(*pfrom,*pto);
3007 }
3008 case EM_EXGETSEL:
3009 {
3010 CHARRANGE *pRange = (CHARRANGE *)lParam;
3011 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
3012 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
3013 return 0;
3014 }
3015 case EM_SETUNDOLIMIT:
3016 {
3017 if ((int)wParam < 0)
3018 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3019 else
3020 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3021 /* Setting a max stack size keeps wine from getting killed
3022 for hogging memory. Windows allocates all this memory at once, so
3023 no program would realistically set a value above our maximum. */
3024 return editor->nUndoLimit;
3025 }
3026 case EM_CANUNDO:
3027 return editor->pUndoStack != NULL;
3028 case EM_CANREDO:
3029 return editor->pRedoStack != NULL;
3030 case WM_UNDO: /* FIXME: actually not the same */
3031 case EM_UNDO:
3032 return ME_Undo(editor);
3033 case EM_REDO:
3034 return ME_Redo(editor);
3035 case EM_GETOPTIONS:
3036 {
3037 /* these flags are equivalent to the ES_* counterparts */
3038 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3039 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3040 DWORD settings = editor->styleFlags & mask;
3041
3042 return settings;
3043 }
3044 case EM_SETOPTIONS:
3045 {
3046 /* these flags are equivalent to ES_* counterparts, except for
3047 * ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
3048 * but is still stored in editor->styleFlags. */
3049 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3050 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
3051 ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
3052 DWORD settings = mask & editor->styleFlags;
3053 DWORD oldSettings = settings;
3054 DWORD changedSettings;
3055
3056 switch(wParam)
3057 {
3058 case ECOOP_SET:
3059 settings = lParam;
3060 break;
3061 case ECOOP_OR:
3062 settings |= lParam;
3063 break;
3064 case ECOOP_AND:
3065 settings &= lParam;
3066 break;
3067 case ECOOP_XOR:
3068 settings ^= lParam;
3069 }
3070 changedSettings = oldSettings ^ settings;
3071
3072 if (changedSettings) {
3073 editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
3074
3075 if (changedSettings & ECO_SELECTIONBAR)
3076 {
3077 ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
3078 if (settings & ECO_SELECTIONBAR) {
3079 assert(!editor->selofs);
3080 editor->selofs = SELECTIONBAR_WIDTH;
3081 editor->rcFormat.left += editor->selofs;
3082 } else {
3083 editor->rcFormat.left -= editor->selofs;
3084 editor->selofs = 0;
3085 }
3086 ME_RewrapRepaint(editor);
3087 }
3088
3089 if (changedSettings & settings & ECO_VERTICAL)
3090 FIXME("ECO_VERTICAL not implemented yet!\n");
3091 if (changedSettings & settings & ECO_AUTOHSCROLL)
3092 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
3093 if (changedSettings & settings & ECO_AUTOVSCROLL)
3094 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
3095 if (changedSettings & settings & ECO_NOHIDESEL)
3096 FIXME("ECO_NOHIDESEL not implemented yet!\n");
3097 if (changedSettings & settings & ECO_WANTRETURN)
3098 FIXME("ECO_WANTRETURN not implemented yet!\n");
3099 if (changedSettings & settings & ECO_AUTOWORDSELECTION)
3100 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
3101 }
3102
3103 return settings;
3104 }
3105 case EM_SETSEL:
3106 {
3107 ME_InvalidateSelection(editor);
3108 ME_SetSelection(editor, wParam, lParam);
3109 ME_InvalidateSelection(editor);
3110 ITextHost_TxShowCaret(editor->texthost, FALSE);
3111 ME_ShowCaret(editor);
3112 ME_SendSelChange(editor);
3113 return 0;
3114 }
3115 case EM_SETSCROLLPOS:
3116 {
3117 POINT *point = (POINT *)lParam;
3118 ME_ScrollAbs(editor, point->x, point->y);
3119 return 0;
3120 }
3121 case EM_AUTOURLDETECT:
3122 {
3123 if (wParam==1 || wParam ==0)
3124 {
3125 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3126 return 0;
3127 }
3128 return E_INVALIDARG;
3129 }
3130 case EM_GETAUTOURLDETECT:
3131 {
3132 return editor->AutoURLDetect_bEnable;
3133 }
3134 case EM_EXSETSEL:
3135 {
3136 int end;
3137 CHARRANGE range = *(CHARRANGE *)lParam;
3138
3139 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
3140
3141 ME_InvalidateSelection(editor);
3142 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
3143 ME_InvalidateSelection(editor);
3144 ITextHost_TxShowCaret(editor->texthost, FALSE);
3145 ME_ShowCaret(editor);
3146 ME_SendSelChange(editor);
3147
3148 return end;
3149 }
3150 case EM_SHOWSCROLLBAR:
3151 {
3152 DWORD flags;
3153
3154 switch (wParam)
3155 {
3156 case SB_HORZ:
3157 flags = WS_HSCROLL;
3158 break;
3159 case SB_VERT:
3160 flags = WS_VSCROLL;
3161 break;
3162 case SB_BOTH:
3163 flags = WS_HSCROLL|WS_VSCROLL;
3164 break;
3165 default:
3166 return 0;
3167 }
3168
3169 if (lParam) {
3170 editor->styleFlags |= flags;
3171 if (flags & WS_HSCROLL)
3172 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
3173 editor->nTotalWidth > editor->sizeWindow.cx);
3174 if (flags & WS_VSCROLL)
3175 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
3176 editor->nTotalLength > editor->sizeWindow.cy);
3177 } else {
3178 editor->styleFlags &= ~flags;
3179 ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
3180 }
3181 return 0;
3182 }
3183 case EM_SETTEXTEX:
3184 {
3185 LPWSTR wszText;
3186 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3187 size_t len = 0;
3188 int from, to;
3189 ME_Style *style;
3190 BOOL bRtf, bUnicode, bSelection;
3191 int oldModify = editor->nModifyStep;
3192
3193 if (!pStruct) return 0;
3194
3195 /* If we detect ascii rtf at the start of the string,
3196 * we know it isn't unicode. */
3197 bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
3198 !strncmp((char *)lParam, "{\\urtf", 6)));
3199 bUnicode = !bRtf && pStruct->codepage == 1200;
3200
3201 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3202 bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3203 pStruct->flags, pStruct->codepage);
3204
3205 bSelection = (pStruct->flags & ST_SELECTION) != 0;
3206 if (bSelection) {
3207 ME_GetSelection(editor, &from, &to);
3208 style = ME_GetSelectionInsertStyle(editor);
3209 ME_InternalDeleteText(editor, from, to - from, FALSE);
3210 } else {
3211 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3212 style = editor->pBuffer->pDefaultStyle;
3213 }
3214
3215 if (bRtf) {
3216 ME_StreamInRTFString(editor, bSelection, (char *)lParam);
3217 if (bSelection) {
3218 /* FIXME: The length returned is doesn't include the rtf control
3219 * characters, only the actual text. */
3220 len = lParam ? strlen((char *)lParam) : 0;
3221 }
3222 } else {
3223 /* FIXME: make use of pStruct->codepage in the to unicode translation */
3224 wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
3225 len = wszText ? lstrlenW(wszText) : 0;
3226 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3227 }
3228
3229 if (bSelection) {
3230 ME_ReleaseStyle(style);
3231 ME_UpdateSelectionLinkAttribute(editor);
3232 } else {
3233 len = 1;
3234 ME_UpdateLinkAttribute(editor, 0, -1);
3235 }
3236 ME_CommitUndo(editor);
3237 if (!(pStruct->flags & ST_KEEPUNDO))
3238 {
3239 editor->nModifyStep = oldModify;
3240 ME_EmptyUndoStack(editor);
3241 }
3242 ME_UpdateRepaint(editor);
3243 return len;
3244 }
3245 case EM_SETBKGNDCOLOR:
3246 {
3247 LRESULT lColor;
3248 if (editor->rgbBackColor != -1) {
3249 DeleteObject(editor->hbrBackground);
3250 lColor = editor->rgbBackColor;
3251 }
3252 else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
3253
3254 if (wParam)
3255 {
3256 editor->rgbBackColor = -1;
3257 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
3258 }
3259 else
3260 {
3261 editor->rgbBackColor = lParam;
3262 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
3263 }
3264 ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
3265 ITextHost_TxViewChange(editor->texthost, TRUE);
3266 return lColor;
3267 }
3268 case EM_GETMODIFY:
3269 return editor->nModifyStep == 0 ? 0 : -1;
3270 case EM_SETMODIFY:
3271 {
3272 if (wParam)
3273 editor->nModifyStep = 1;
3274 else
3275 editor->nModifyStep = 0;
3276
3277 return 0;
3278 }
3279 case EM_SETREADONLY:
3280 {
3281 if (wParam)
3282 editor->styleFlags |= ES_READONLY;
3283 else
3284 editor->styleFlags &= ~ES_READONLY;
3285 return 0;
3286 }
3287 case EM_SETEVENTMASK:
3288 {
3289 DWORD nOldMask = editor->nEventMask;
3290
3291 editor->nEventMask = lParam;
3292 return nOldMask;
3293 }
3294 case EM_GETEVENTMASK:
3295 return editor->nEventMask;
3296 case EM_SETCHARFORMAT:
3297 {
3298 CHARFORMAT2W buf, *p;
3299 BOOL bRepaint = TRUE;
3300 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
3301 if (p == NULL) return 0;
3302 if (!wParam)
3303 ME_SetDefaultCharFormat(editor, p);
3304 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
3305 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
3306 return 0;
3307 } else if (wParam == SCF_ALL) {
3308 if (editor->mode & TM_PLAINTEXT)
3309 ME_SetDefaultCharFormat(editor, p);
3310 else {
3311 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
3312 editor->nModifyStep = 1;
3313 }
3314 } else if (editor->mode & TM_PLAINTEXT) {
3315 return 0;
3316 } else {
3317 int from, to;
3318 ME_GetSelection(editor, &from, &to);
3319 bRepaint = (from != to);
3320 ME_SetSelectionCharFormat(editor, p);
3321 if (from != to) editor->nModifyStep = 1;
3322 }
3323 ME_CommitUndo(editor);
3324 if (bRepaint)
3325 {
3326 ME_WrapMarkedParagraphs(editor);
3327 ME_UpdateScrollBar(editor);
3328 ME_Repaint(editor);
3329 }
3330 return 1;
3331 }
3332 case EM_GETCHARFORMAT:
3333 {
3334 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3335 if (dst->cbSize != sizeof(CHARFORMATA) &&
3336 dst->cbSize != sizeof(CHARFORMATW) &&
3337 dst->cbSize != sizeof(CHARFORMAT2A) &&
3338 dst->cbSize != sizeof(CHARFORMAT2W))
3339 return 0;
3340 tmp.cbSize = sizeof(tmp);
3341 if (!wParam)
3342 ME_GetDefaultCharFormat(editor, &tmp);
3343 else
3344 ME_GetSelectionCharFormat(editor, &tmp);
3345 ME_CopyToCFAny(dst, &tmp);
3346 return tmp.dwMask;
3347 }
3348 case EM_SETPARAFORMAT:
3349 {
3350 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3351 ME_WrapMarkedParagraphs(editor);
3352 ME_UpdateScrollBar(editor);
3353 ME_Repaint(editor);
3354 ME_CommitUndo(editor);
3355 return result;
3356 }
3357 case EM_GETPARAFORMAT:
3358 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3359 return ((PARAFORMAT2 *)lParam)->dwMask;
3360 case EM_GETFIRSTVISIBLELINE:
3361 {
3362 ME_DisplayItem *p = editor->pBuffer->pFirst;
3363 int y = editor->vert_si.nPos;
3364 int ypara = 0;
3365 int count = 0;
3366 int ystart, yend;
3367 while(p) {
3368 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3369 if (p->type == diTextEnd)
3370 break;
3371 if (p->type == diParagraph) {
3372 ypara = p->member.para.pt.y;
3373 continue;
3374 }
3375 ystart = ypara + p->member.row.pt.y;
3376 yend = ystart + p->member.row.nHeight;
3377 if (y < yend) {
3378 break;
3379 }
3380 count++;
3381 }
3382 return count;
3383 }
3384 case EM_HIDESELECTION:
3385 {
3386 editor->bHideSelection = (wParam != 0);
3387 ME_InvalidateSelection(editor);
3388 return 0;
3389 }
3390 case EM_LINESCROLL:
3391 {
3392 if (!(editor->styleFlags & ES_MULTILINE))
3393 return FALSE;
3394 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3395 return TRUE;
3396 }
3397 case WM_CLEAR:
3398 {
3399 int from, to;
3400 ME_GetSelection(editor, &from, &to);
3401 ME_InternalDeleteText(editor, from, to-from, FALSE);
3402 ME_CommitUndo(editor);
3403 ME_UpdateRepaint(editor);
3404 return 0;
3405 }
3406 case EM_REPLACESEL:
3407 {
3408 int from, to;
3409 ME_Style *style;
3410 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3411 size_t len = wszText ? lstrlenW(wszText) : 0;
3412 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3413
3414 ME_GetSelection(editor, &from, &to);
3415 style = ME_GetSelectionInsertStyle(editor);
3416 ME_InternalDeleteText(editor, from, to-from, FALSE);
3417 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3418 ME_ReleaseStyle(style);
3419 /* drop temporary style if line end */
3420 /*
3421 * FIXME question: does abc\n mean: put abc,
3422 * clear temp style, put \n? (would require a change)
3423 */
3424 if (len>0 && wszText[len-1] == '\n')
3425 ME_ClearTempStyle(editor);
3426 ME_EndToUnicode(unicode, wszText);
3427 ME_CommitUndo(editor);
3428 ME_UpdateSelectionLinkAttribute(editor);
3429 if (!wParam)
3430 ME_EmptyUndoStack(editor);
3431 ME_UpdateRepaint(editor);
3432 return len;
3433 }
3434 case EM_SCROLLCARET:
3435 ME_EnsureVisible(editor, &editor->pCursors[0]);
3436 return 0;
3437 case WM_SETFONT:
3438 {
3439 LOGFONTW lf;
3440 CHARFORMAT2W fmt;
3441 HDC hDC;
3442 BOOL bRepaint = LOWORD(lParam);
3443
3444 if (!wParam)
3445 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3446 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3447 hDC = ITextHost_TxGetDC(editor->texthost);
3448 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3449 ITextHost_TxReleaseDC(editor->texthost, hDC);
3450 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
3451 ME_SetDefaultCharFormat(editor, &fmt);
3452
3453 ME_CommitUndo(editor);
3454 ME_MarkAllForWrapping(editor);
3455 ME_WrapMarkedParagraphs(editor);
3456 ME_UpdateScrollBar(editor);
3457 if (bRepaint)
3458 ME_Repaint(editor);
3459 return 0;
3460 }
3461 case WM_SETTEXT:
3462 {
3463 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3464 if (lParam)
3465 {
3466 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3467 if (!strncmp((char *)lParam, "{\\rtf", 5) ||
3468 !strncmp((char *)lParam, "{\\urtf", 6))
3469 {
3470 /* Undocumented: WM_SETTEXT supports RTF text */
3471 ME_StreamInRTFString(editor, 0, (char *)lParam);
3472 }
3473 else
3474 {
3475 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3476 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3477 if (lstrlenW(wszText) > 0)
3478 {
3479 int len = -1;
3480
3481 /* uses default style! */
3482 if (!(editor->styleFlags & ES_MULTILINE))
3483 {
3484 WCHAR * p;
3485
3486 p = wszText;
3487 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3488 len = p - wszText;
3489 }
3490 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3491 }
3492 ME_EndToUnicode(unicode, wszText);
3493 }
3494 }
3495 else
3496 TRACE("WM_SETTEXT - NULL\n");
3497 ME_UpdateLinkAttribute(editor, 0, -1);
3498 ME_SetSelection(editor, 0, 0);
3499 editor->nModifyStep = 0;
3500 ME_CommitUndo(editor);
3501 ME_EmptyUndoStack(editor);
3502 ME_UpdateRepaint(editor);
3503 return 1;
3504 }
3505 case EM_CANPASTE:
3506 {
3507 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3508 if (IsClipboardFormatAvailable(nRTFFormat))
3509 return TRUE;
3510 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3511 return TRUE;
3512 return FALSE;
3513 }
3514 case WM_PASTE:
3515 ME_Paste(editor);
3516 return 0;
3517 case WM_CUT:
3518 case WM_COPY:
3519 {
3520 CHARRANGE range;
3521 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
3522
3523 if (ME_Copy(editor, &range) && msg == WM_CUT)
3524 {
3525 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
3526 ME_CommitUndo(editor);
3527 ME_UpdateRepaint(editor);
3528 }
3529 return 0;
3530 }
3531 case WM_GETTEXTLENGTH:
3532 {
3533 GETTEXTLENGTHEX how;
3534
3535 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3536 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3537 how.codepage = unicode ? 1200 : CP_ACP;
3538 return ME_GetTextLengthEx(editor, &how);
3539 }
3540 case EM_GETTEXTLENGTHEX:
3541 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3542 case WM_GETTEXT:
3543 {
3544 GETTEXTEX ex;
3545 LRESULT rc;
3546 LPSTR bufferA = NULL;
3547 LPWSTR bufferW = NULL;
3548
3549 if (unicode)
3550 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
3551 else
3552 bufferA = heap_alloc(wParam + 2);
3553
3554 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3555 ex.flags = GT_USECRLF;
3556 ex.codepage = unicode ? 1200 : CP_ACP;
3557 ex.lpDefaultChar = NULL;
3558 ex.lpUsedDefChar = NULL;
3559
3560 rc = ME_GetTextEx(editor, &ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA);
3561
3562 if (unicode)
3563 {
3564 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
3565 if (strlenW(bufferW) >= wParam) rc = 0;
3566 }
3567 else
3568 {
3569 memcpy((LPSTR)lParam, bufferA, wParam);
3570 if (strlen(bufferA) >= wParam) rc = 0;
3571 }
3572 heap_free(bufferA);
3573 heap_free(bufferW);
3574 return rc;
3575 }
3576 case EM_GETTEXTEX:
3577 return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
3578 case EM_GETSELTEXT:
3579 {
3580 int from, to;
3581 ME_GetSelection(editor, &from, &to);
3582 return ME_GetTextRange(editor, (WCHAR *)lParam, from,
3583 to - from, unicode);
3584 }
3585 case EM_GETSCROLLPOS:
3586 {
3587 POINT *point = (POINT *)lParam;
3588 point->x = editor->horz_si.nPos;
3589 point->y = editor->vert_si.nPos;
3590 return 1;
3591 }
3592 case EM_GETTEXTRANGE:
3593 {
3594 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3595 int start = rng->chrg.cpMin;
3596 int end = rng->chrg.cpMax;
3597 int textlength = ME_GetTextLength(editor);
3598 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
3599 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
3600 editor->bEmulateVersion10, ME_GetTextLength(editor));
3601 if (start < 0) return 0;
3602 if ((start == 0 && end == -1) || end > textlength)
3603 end = textlength;
3604 if (start >= end) return 0;
3605 return ME_GetTextRange(editor, rng->lpstrText, start, end - start, unicode);
3606 }
3607 case EM_GETLINE:
3608 {
3609 ME_DisplayItem *run;
3610 const unsigned int nMaxChars = *(WORD *) lParam;
3611 unsigned int nCharsLeft = nMaxChars;
3612 char *dest = (char *) lParam;
3613 BOOL wroteNull = FALSE;
3614
3615 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3616 unicode ? "Unicode" : "Ansi");
3617
3618 run = ME_FindRowWithNumber(editor, wParam);
3619 if (run == NULL)
3620 return 0;
3621
3622 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3623 && run->type == diRun)
3624 {
3625 unsigned int nCopy;
3626 ME_String *strText;
3627
3628 strText = run->member.run.strText;
3629 nCopy = min(nCharsLeft, strText->nLen);
3630
3631 if (unicode)
3632 memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
3633 else
3634 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3635 nCharsLeft, NULL, NULL);
3636 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3637 nCharsLeft -= nCopy;
3638 }
3639
3640 /* append line termination, space allowing */
3641 if (nCharsLeft > 0)
3642 {
3643 if (unicode)
3644 *((WCHAR *)dest) = '\0';
3645 else
3646 *dest = '\0';
3647 nCharsLeft--;
3648 wroteNull = TRUE;
3649 }
3650
3651 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3652 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3653 }
3654 case EM_GETLINECOUNT:
3655 {
3656 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3657 int nRows = 0;
3658
3659 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3660
3661 while (item != editor->pBuffer->pLast)
3662 {
3663 assert(item->type == diParagraph);
3664 prev_para = ME_FindItemBack(item, diRun);
3665 if (prev_para) {
3666 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3667 }
3668 nRows += item->member.para.nRows;
3669 item = item->member.para.next_para;
3670 }
3671 last_para = ME_FindItemBack(item, diRun);
3672 assert(last_para);
3673 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3674 if (editor->bEmulateVersion10 && prev_para &&
3675 last_para->member.run.nCharOfs == 0 &&
3676 prev_para->member.run.strText->nLen == 1 &&
3677 prev_para->member.run.strText->szData[0] == '\r')
3678 {
3679 /* In 1.0 emulation, the last solitary \r at the very end of the text
3680 (if one exists) is NOT a line break.
3681 FIXME: this is an ugly hack. This should have a more regular model. */
3682 nRows--;
3683 }
3684
3685 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3686 return max(1, nRows);
3687 }
3688 case EM_LINEFROMCHAR:
3689 {
3690 if (wParam == -1)
3691 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
3692 else
3693 return ME_RowNumberFromCharOfs(editor, wParam);
3694 }
3695 case EM_EXLINEFROMCHAR:
3696 {
3697 if (lParam == -1)
3698 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
3699 else
3700 return ME_RowNumberFromCharOfs(editor, lParam);
3701 }
3702 case EM_LINEINDEX:
3703 {
3704 ME_DisplayItem *item, *para;
3705 int nCharOfs;
3706
3707 if (wParam == -1)
3708 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3709 else
3710 item = ME_FindRowWithNumber(editor, wParam);
3711 if (!item)
3712 return -1;
3713 para = ME_GetParagraph(item);
3714 item = ME_FindItemFwd(item, diRun);
3715 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3716 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3717 return nCharOfs;
3718 }
3719 case EM_LINELENGTH:
3720 {
3721 ME_DisplayItem *item, *item_end;
3722 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3723 ME_DisplayItem *para, *run;
3724
3725 if (wParam > ME_GetTextLength(editor))
3726 return 0;
3727 if (wParam == -1)
3728 {
3729 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3730 return 0;
3731 }
3732 ME_RunOfsFromCharOfs(editor, wParam, &para, &run, NULL);
3733 item = ME_RowStart(run);
3734 nThisLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item, diRun), 0);
3735 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3736 if (item_end->type == diStartRow) {
3737 nNextLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item_end, diRun), 0);
3738 } else {
3739 ME_DisplayItem *endRun = ME_FindItemBack(item_end, diRun);
3740 assert(endRun && endRun->member.run.nFlags & MERF_ENDPARA);
3741 nNextLineOfs = item_end->member.para.nCharOfs - endRun->member.run.strText->nLen;
3742 }
3743 nChars = nNextLineOfs - nThisLineOfs;
3744 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3745 return nChars;
3746 }
3747 case EM_EXLIMITTEXT:
3748 {
3749 if ((int)lParam < 0)
3750 return 0;
3751 if (lParam == 0)
3752 editor->nTextLimit = 65536;
3753 else
3754 editor->nTextLimit = (int) lParam;
3755 return 0;
3756 }
3757 case EM_LIMITTEXT:
3758 {
3759 if (wParam == 0)
3760 editor->nTextLimit = 65536;
3761 else
3762 editor->nTextLimit = (int) wParam;
3763 return 0;
3764 }
3765 case EM_GETLIMITTEXT:
3766 {
3767 return editor->nTextLimit;
3768 }
3769 case EM_FINDTEXT:
3770 {
3771 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3772 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3773 WCHAR *tmp;
3774 LRESULT r;
3775
3776 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3777 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3778 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3779 FREE_OBJ( tmp );
3780 return r;
3781 }
3782 case EM_FINDTEXTEX:
3783 {
3784 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3785 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3786 WCHAR *tmp;
3787 LRESULT r;
3788
3789 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3790 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3791 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3792 FREE_OBJ( tmp );
3793 return r;
3794 }
3795 case EM_FINDTEXTW:
3796 {
3797 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3798 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3799 }
3800 case EM_FINDTEXTEXW:
3801 {
3802 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3803 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3804 }
3805 case EM_GETZOOM:
3806 if (!wParam || !lParam)
3807 return FALSE;
3808 *(int *)wParam = editor->nZoomNumerator;
3809 *(int *)lParam = editor->nZoomDenominator;
3810 return TRUE;
3811 case EM_SETZOOM:
3812 return ME_SetZoom(editor, wParam, lParam);
3813 case EM_CHARFROMPOS:
3814 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3815 case EM_POSFROMCHAR:
3816 {
3817 ME_DisplayItem *pPara, *pRun;
3818 int nCharOfs, nOffset, nLength;
3819 POINTL pt = {0,0};
3820
3821 nCharOfs = wParam;
3822 /* detect which API version we're dealing with */
3823 if (wParam >= 0x40000)
3824 nCharOfs = lParam;
3825 nLength = ME_GetTextLength(editor);
3826 nCharOfs = min(nCharOfs, nLength);
3827 nCharOfs = max(nCharOfs, 0);
3828
3829 ME_RunOfsFromCharOfs(editor, nCharOfs, &pPara, &pRun, &nOffset);
3830 assert(pRun->type == diRun);
3831 pt.y = pRun->member.run.pt.y;
3832 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3833 pt.y += pPara->member.para.pt.y + editor->rcFormat.top;
3834 pt.x += editor->rcFormat.left;
3835
3836 pt.x -= editor->horz_si.nPos;
3837 pt.y -= editor->vert_si.nPos;
3838
3839 if (wParam >= 0x40000) {
3840 *(POINTL *)wParam = pt;
3841 }
3842 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3843 }
3844 case WM_CREATE:
3845 {
3846 INT max;
3847
3848 ME_SetDefaultFormatRect(editor);
3849
3850 max = (editor->styleFlags & ES_DISABLENOSCROLL) ? 1 : 0;
3851 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_VSCROLL)
3852 ITextHost_TxSetScrollRange(editor->texthost, SB_VERT, 0, max, TRUE);
3853
3854 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_HSCROLL)
3855 ITextHost_TxSetScrollRange(editor->texthost, SB_HORZ, 0, max, TRUE);
3856
3857 if (editor->styleFlags & ES_DISABLENOSCROLL)
3858 {
3859 if (editor->styleFlags & WS_VSCROLL)
3860 {
3861 ITextHost_TxEnableScrollBar(editor->texthost, SB_VERT, ESB_DISABLE_BOTH);
3862 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT, TRUE);
3863 }
3864 if (editor->styleFlags & WS_HSCROLL)
3865 {
3866 ITextHost_TxEnableScrollBar(editor->texthost, SB_HORZ, ESB_DISABLE_BOTH);
3867 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ, TRUE);
3868 }
3869 }
3870
3871 ME_CommitUndo(editor);
3872 ME_WrapMarkedParagraphs(editor);
3873 ME_MoveCaret(editor);
3874 return 0;
3875 }
3876 case WM_DESTROY:
3877 ME_DestroyEditor(editor);
3878 return 0;
3879 case WM_SETCURSOR:
3880 {
3881 return ME_SetCursor(editor);
3882 }
3883 case WM_LBUTTONDBLCLK:
3884 case WM_LBUTTONDOWN:
3885 {
3886 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3887 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3888 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3889 return 0;
3890 ITextHost_TxSetFocus(editor->texthost);
3891 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3892 ME_CalculateClickCount(editor, msg, wParam, lParam));
3893 ITextHost_TxSetCapture(editor->texthost, TRUE);
3894 editor->bMouseCaptured = TRUE;
3895 ME_LinkNotify(editor,msg,wParam,lParam);
3896 if (!ME_SetCursor(editor)) goto do_default;
3897 break;
3898 }
3899 case WM_MOUSEMOVE:
3900 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3901 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3902 return 0;
3903 if (editor->bMouseCaptured)
3904 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3905 ME_LinkNotify(editor,msg,wParam,lParam);
3906 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3907 if (editor->bMouseCaptured)
3908 ME_SetCursor(editor);
3909 break;
3910 case WM_LBUTTONUP:
3911 if (editor->bMouseCaptured) {
3912 ITextHost_TxSetCapture(editor->texthost, FALSE);
3913 editor->bMouseCaptured = FALSE;
3914 }
3915 if (editor->nSelectionType == stDocument)
3916 editor->nSelectionType = stPosition;
3917 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3918 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3919 return 0;
3920 else
3921 {
3922 ME_SetCursor(editor);
3923 ME_LinkNotify(editor,msg,wParam,lParam);
3924 }
3925 break;
3926 case WM_RBUTTONUP:
3927 case WM_RBUTTONDOWN:
3928 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3929 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3930 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3931 return 0;
3932 goto do_default;
3933 case WM_CONTEXTMENU:
3934 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3935 goto do_default;
3936 break;
3937 case WM_SETFOCUS:
3938 editor->bHaveFocus = TRUE;
3939 ME_ShowCaret(editor);
3940 ME_SendOldNotify(editor, EN_SETFOCUS);
3941 return 0;
3942 case WM_KILLFOCUS:
3943 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3944 editor->bHaveFocus = FALSE;
3945 ME_HideCaret(editor);
3946 ME_SendOldNotify(editor, EN_KILLFOCUS);
3947 return 0;
3948 case WM_COMMAND:
3949 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3950 return 0;
3951 case WM_KEYUP:
3952 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3953 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3954 return 0;
3955 goto do_default;
3956 case WM_KEYDOWN:
3957 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3958 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3959 return 0;
3960 if (ME_KeyDown(editor, LOWORD(wParam)))
3961 return 0;
3962 goto do_default;
3963 case WM_CHAR:
3964 return ME_Char(editor, wParam, lParam, unicode);
3965 case WM_UNICHAR:
3966 if (unicode)
3967 {
3968 if(wParam == UNICODE_NOCHAR) return TRUE;
3969 if(wParam <= 0x000fffff)
3970 {
3971 if(wParam > 0xffff) /* convert to surrogates */
3972 {
3973 wParam -= 0x10000;
3974 ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
3975 ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
3976 } else {
3977 ME_Char(editor, wParam, 0, TRUE);
3978 }
3979 }
3980 return 0;
3981 }
3982 break;
3983 case EM_STOPGROUPTYPING:
3984 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3985 return 0;
3986 case WM_HSCROLL:
3987 {
3988 const int scrollUnit = 7;
3989
3990 switch(LOWORD(wParam))
3991 {
3992 case SB_LEFT:
3993 ME_ScrollAbs(editor, 0, 0);
3994 break;
3995 case SB_RIGHT:
3996 ME_ScrollAbs(editor,
3997 editor->horz_si.nMax - (int)editor->horz_si.nPage,
3998 editor->vert_si.nMax - (int)editor->vert_si.nPage);
3999 break;
4000 case SB_LINELEFT:
4001 ME_ScrollLeft(editor, scrollUnit);
4002 break;
4003 case SB_LINERIGHT:
4004 ME_ScrollRight(editor, scrollUnit);
4005 break;
4006 case SB_PAGELEFT:
4007 ME_ScrollLeft(editor, editor->sizeWindow.cx);
4008 break;
4009 case SB_PAGERIGHT:
4010 ME_ScrollRight(editor, editor->sizeWindow.cx);
4011 break;
4012 case SB_THUMBTRACK:
4013 case SB_THUMBPOSITION:
4014 {
4015 SCROLLINFO sbi;
4016 sbi.cbSize = sizeof(sbi);
4017 sbi.fMask = SIF_TRACKPOS;
4018 /* Try to get 32-bit track position value. */
4019 if (!GetScrollInfo(editor->hWnd, SB_HORZ, &sbi))
4020 /* GetScrollInfo failed, settle for 16-bit value in wParam. */
4021 sbi.nTrackPos = HIWORD(wParam);
4022
4023 ME_HScrollAbs(editor, sbi.nTrackPos);
4024 break;
4025 }
4026 }
4027 break;
4028 }
4029 case EM_SCROLL: /* fall through */
4030 case WM_VSCROLL:
4031 {
4032 int origNPos;
4033 int lineHeight;
4034
4035 origNPos = editor->vert_si.nPos;
4036 lineHeight = 24;
4037
4038 if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
4039 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
4040 if (lineHeight <= 0) lineHeight = 24;
4041
4042 switch(LOWORD(wParam))
4043 {
4044 case SB_TOP:
4045 ME_ScrollAbs(editor, 0, 0);
4046 break;
4047 case SB_BOTTOM:
4048 ME_ScrollAbs(editor,
4049 editor->horz_si.nMax - (int)editor->horz_si.nPage,
4050 editor->vert_si.nMax - (int)editor->vert_si.nPage);
4051 break;
4052 case SB_LINEUP:
4053 ME_ScrollUp(editor,lineHeight);
4054 break;
4055 case SB_LINEDOWN:
4056 ME_ScrollDown(editor,lineHeight);
4057 break;
4058 case SB_PAGEUP:
4059 ME_ScrollUp(editor,editor->sizeWindow.cy);
4060 break;
4061 case SB_PAGEDOWN:
4062 ME_ScrollDown(editor,editor->sizeWindow.cy);
4063 break;
4064 case SB_THUMBTRACK:
4065 case SB_THUMBPOSITION:
4066 {
4067 SCROLLINFO sbi;
4068 sbi.cbSize = sizeof(sbi);
4069 sbi.fMask = SIF_TRACKPOS;
4070 /* Try to get 32-bit track position value. */
4071 if (!GetScrollInfo(editor->hWnd, SB_VERT, &sbi))
4072 /* GetScrollInfo failed, settle for 16-bit value in wParam. */
4073 sbi.nTrackPos = HIWORD(wParam);
4074
4075 ME_VScrollAbs(editor, sbi.nTrackPos);
4076 break;
4077 }
4078 }
4079 if (msg == EM_SCROLL)
4080 return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
4081 break;
4082 }
4083 case WM_MOUSEWHEEL:
4084 {
4085 int gcWheelDelta;
4086 UINT pulScrollLines;
4087 BOOL ctrl_is_down;
4088
4089 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
4090 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4091 return 0;
4092
4093 ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
4094
4095 gcWheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4096
4097 if (abs(gcWheelDelta) >= WHEEL_DELTA)
4098 {
4099 if (ctrl_is_down) {
4100 int numerator;
4101 if (!editor->nZoomNumerator || !editor->nZoomDenominator)
4102 {
4103 numerator = 100;
4104 } else {
4105 numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
4106 }
4107 numerator = numerator + (gcWheelDelta / WHEEL_DELTA) * 10;
4108 if (numerator >= 10 && numerator <= 500)
4109 ME_SetZoom(editor, numerator, 100);
4110 } else {
4111 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4112 /* FIXME follow the original */
4113 if (pulScrollLines)
4114 ME_ScrollDown(editor,pulScrollLines * (-gcWheelDelta / WHEEL_DELTA) * 8);
4115 }
4116 }
4117 break;
4118 }
4119 case EM_GETRECT:
4120 {
4121 *((RECT *)lParam) = editor->rcFormat;
4122 if (editor->bDefaultFormatRect)
4123 ((RECT *)lParam)->left -= editor->selofs;
4124 return 0;
4125 }
4126 case EM_SETRECT:
4127 case EM_SETRECTNP:
4128 {
4129 if (lParam)
4130 {
4131 int border = 0;
4132 RECT clientRect;
4133 RECT *rc = (RECT *)lParam;
4134
4135 border = editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
4136 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4137 if (wParam == 0)
4138 {
4139 editor->rcFormat.top = max(0, rc->top - border);
4140 editor->rcFormat.left = max(0, rc->left - border);
4141 editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
4142 editor->rcFormat.right = min(clientRect.right, rc->right + border);
4143 } else if (wParam == 1) {
4144 /* MSDN incorrectly says a wParam value of 1 causes the
4145 * lParam rect to be used as a relative offset,
4146 * however, the tests show it just prevents min/max bound
4147 * checking. */
4148 editor->rcFormat.top = rc->top - border;
4149 editor->rcFormat.left = rc->left - border;
4150 editor->rcFormat.bottom = rc->bottom;
4151 editor->rcFormat.right = rc->right + border;
4152 } else {
4153 return 0;
4154 }
4155 editor->bDefaultFormatRect = FALSE;
4156 }
4157 else
4158 {
4159 ME_SetDefaultFormatRect(editor);
4160 editor->bDefaultFormatRect = TRUE;
4161 }
4162 ME_MarkAllForWrapping(editor);
4163 ME_WrapMarkedParagraphs(editor);
4164 ME_UpdateScrollBar(editor);
4165 if (msg != EM_SETRECTNP)
4166 ME_Repaint(editor);
4167 return 0;
4168 }
4169 case EM_REQUESTRESIZE:
4170 ME_SendRequestResize(editor, TRUE);
4171 return 0;
4172 case WM_SETREDRAW:
4173 goto do_default;
4174 case WM_SIZE:
4175 {
4176 RECT clientRect;
4177
4178 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4179 if (editor->bDefaultFormatRect) {
4180 ME_SetDefaultFormatRect(editor);
4181 } else {
4182 editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
4183 editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
4184 }
4185 editor->prevClientRect = clientRect;
4186 ME_RewrapRepaint(editor);
4187 goto do_default;
4188 }
4189 /* IME messages to make richedit controls IME aware */
4190 case WM_IME_SETCONTEXT:
4191 case WM_IME_CONTROL:
4192 case WM_IME_SELECT:
4193 case WM_IME_COMPOSITIONFULL:
4194 return 0;
4195 case WM_IME_STARTCOMPOSITION:
4196 {
4197 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
4198 ME_DeleteSelection(editor);
4199 ME_CommitUndo(editor);
4200 ME_UpdateRepaint(editor);
4201 return 0;
4202 }
4203 case WM_IME_COMPOSITION:
4204 {
4205 HIMC hIMC;
4206
4207 ME_Style *style = ME_GetInsertStyle(editor, 0);
4208 hIMC = ITextHost_TxImmGetContext(editor->texthost);
4209 ME_DeleteSelection(editor);
4210 ME_CommitUndo(editor);
4211 ME_SaveTempStyle(editor);
4212 if (lParam & GCS_RESULTSTR)
4213 {
4214 LPWSTR lpCompStr = NULL;
4215 DWORD dwBufLen;
4216
4217 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4218 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4219 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
4220 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4221 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4222 }
4223 else if (lParam & GCS_COMPSTR)
4224 {
4225 LPWSTR lpCompStr = NULL;
4226 DWORD dwBufLen;
4227
4228 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4229 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4230 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4231 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4232
4233 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4234 ME_SetSelection(editor,editor->imeStartIndex,
4235 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4236 }
4237 ME_ReleaseStyle(style);
4238 ME_UpdateRepaint(editor);
4239 return 0;
4240 }
4241 case WM_IME_ENDCOMPOSITION:
4242 {
4243 ME_DeleteSelection(editor);
4244 editor->imeStartIndex=-1;
4245 return 0;
4246 }
4247 case EM_GETOLEINTERFACE:
4248 {
4249 LPVOID *ppvObj = (LPVOID*) lParam;
4250 return CreateIRichEditOle(editor, ppvObj);
4251 }
4252 case EM_GETPASSWORDCHAR:
4253 {
4254 return editor->cPasswordMask;
4255 }
4256 case EM_SETOLECALLBACK:
4257 if(editor->lpOleCallback)
4258 IUnknown_Release(editor->lpOleCallback);
4259 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4260 if(editor->lpOleCallback)
4261 IUnknown_AddRef(editor->lpOleCallback);
4262 return TRUE;
4263 case EM_GETWORDBREAKPROC:
4264 return (LRESULT)editor->pfnWordBreak;
4265 case EM_SETWORDBREAKPROC:
4266 {
4267 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4268
4269 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4270 return (LRESULT)pfnOld;
4271 }
4272 case EM_GETTEXTMODE:
4273 return editor->mode;
4274 case EM_SETTEXTMODE:
4275 {
4276 LRESULT ret;
4277 int mask = 0;
4278 int changes = 0;
4279 GETTEXTLENGTHEX how;
4280
4281 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
4282 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
4283 how.codepage = unicode ? 1200 : CP_ACP;
4284 ret = ME_GetTextLengthEx(editor, &how);
4285 if (!ret)
4286 {
4287 /*Check for valid wParam*/
4288 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4289 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4290 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4291 return 1;
4292 else
4293 {
4294 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4295 {
4296 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4297 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4298 }
4299 /*FIXME: Currently no support for undo level and code page options*/
4300 editor->mode = (editor->mode & (~mask)) | changes;
4301 return 0;
4302 }
4303 }
4304 return ret;
4305 }
4306 case EM_SETPASSWORDCHAR:
4307 {
4308 editor->cPasswordMask = wParam;
4309 ME_RewrapRepaint(editor);
4310 return 0;
4311 }
4312 case EM_SETTARGETDEVICE:
4313 if (wParam == 0)
4314 {
4315 BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
4316 if (editor->nAvailWidth || editor->bWordWrap != new)
4317 {
4318 editor->bWordWrap = new;
4319 editor->nAvailWidth = 0; /* wrap to client area */
4320 ME_RewrapRepaint(editor);
4321 }
4322 } else {
4323 int width = max(0, lParam);
4324 if ((editor->styleFlags & ES_MULTILINE) &&
4325 (!editor->bWordWrap || editor->nAvailWidth != width))
4326 {
4327 editor->nAvailWidth = width;
4328 editor->bWordWrap = TRUE;
4329 ME_RewrapRepaint(editor);
4330 }
4331 FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
4332 }
4333 return TRUE;
4334 default:
4335 do_default:
4336 *phresult = S_FALSE;
4337 break;
4338 }
4339 return 0L;
4340 }
4341
4342 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
4343 LPARAM lParam, BOOL unicode)
4344 {
4345 ME_TextEditor *editor;
4346 HRESULT hresult;
4347 LRESULT lresult = 0;
4348
4349 TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
4350 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
4351
4352 editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4353 if (!editor)
4354 {
4355 if (msg == WM_NCCREATE)
4356 {
4357 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4358 ITextHost *texthost;
4359
4360 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4361 texthost = ME_CreateTextHost(hWnd, FALSE);
4362 return texthost != NULL;
4363 }
4364 else if (msg != WM_NCDESTROY)
4365 {
4366 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
4367 return 0;
4368 }
4369 }
4370
4371 switch (msg)
4372 {
4373 case WM_PAINT:
4374 {
4375 HDC hDC;
4376 RECT rc;
4377 PAINTSTRUCT ps;
4378
4379 hDC = BeginPaint(editor->hWnd, &ps);
4380 /* Erase area outside of the formatting rectangle */
4381 if (ps.rcPaint.top < editor->rcFormat.top)
4382 {
4383 rc = ps.rcPaint;
4384 rc.bottom = editor->rcFormat.top;
4385 FillRect(hDC, &rc, editor->hbrBackground);
4386 ps.rcPaint.top = editor->rcFormat.top;
4387 }
4388 if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
4389 rc = ps.rcPaint;
4390 rc.top = editor->rcFormat.bottom;
4391 FillRect(hDC, &rc, editor->hbrBackground);
4392 ps.rcPaint.bottom = editor->rcFormat.bottom;
4393 }
4394 if (ps.rcPaint.left < editor->rcFormat.left) {
4395 rc = ps.rcPaint;
4396 rc.right = editor->rcFormat.left;
4397 FillRect(hDC, &rc, editor->hbrBackground);
4398 ps.rcPaint.left = editor->rcFormat.left;
4399 }
4400 if (ps.rcPaint.right > editor->rcFormat.right) {
4401 rc = ps.rcPaint;
4402 rc.left = editor->rcFormat.right;
4403 FillRect(hDC, &rc, editor->hbrBackground);
4404 ps.rcPaint.right = editor->rcFormat.right;
4405 }
4406
4407 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
4408 EndPaint(editor->hWnd, &ps);
4409 return 0;
4410 }
4411 case WM_ERASEBKGND:
4412 {
4413 HDC hDC = (HDC)wParam;
4414 RECT rc;
4415
4416 if (GetUpdateRect(editor->hWnd, &rc, TRUE))
4417 FillRect(hDC, &rc, editor->hbrBackground);
4418 return 1;
4419 }
4420 case EM_SETOPTIONS:
4421 {
4422 DWORD dwStyle;
4423 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
4424 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
4425 ECO_SELECTIONBAR;
4426 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4427 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4428 dwStyle = (dwStyle & ~mask) | (lresult & mask);
4429 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4430 return lresult;
4431 }
4432 case EM_SETREADONLY:
4433 {
4434 DWORD dwStyle;
4435 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4436 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4437 dwStyle &= ~ES_READONLY;
4438 if (wParam)
4439 dwStyle |= ES_READONLY;
4440 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4441 return lresult;
4442 }
4443 default:
4444 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4445 }
4446
4447 if (hresult == S_FALSE)
4448 lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
4449
4450 TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
4451 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
4452
4453 return lresult;
4454 }
4455
4456 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4457 {
4458 BOOL unicode = TRUE;
4459
4460 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4461 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4462 unicode = FALSE;
4463
4464 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4465 }
4466
4467 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4468 {
4469 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4470 }
4471
4472 /******************************************************************
4473 * RichEditANSIWndProc (RICHED20.10)
4474 */
4475 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4476 {
4477 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4478 }
4479
4480 /******************************************************************
4481 * RichEdit10ANSIWndProc (RICHED20.9)
4482 */
4483 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4484 {
4485 if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
4486 {
4487 ITextHost *texthost;
4488 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4489
4490 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4491 texthost = ME_CreateTextHost(hWnd, TRUE);
4492 return texthost != NULL;
4493 }
4494 return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4495 }
4496
4497 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4498 {
4499 ITextHost_TxNotify(editor->texthost, nCode, NULL);
4500 }
4501
4502 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
4503 {
4504 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
4505 int i = 0;
4506
4507 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
4508 item = item->member.para.next_para;
4509 if (!item)
4510 return 0;
4511 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
4512 item = item->member.para.next_para;
4513 i++;
4514 }
4515 return i;
4516 }
4517
4518
4519 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart,
4520 int nChars, int bCRLF)
4521 {
4522 ME_DisplayItem *pRun;
4523 int nOffset, nWritten = 0;
4524 WCHAR *pStart = buffer;
4525
4526 ME_RunOfsFromCharOfs(editor, nStart, NULL, &pRun, &nOffset);
4527
4528 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4529 if (editor->bEmulateVersion10) bCRLF = 0;
4530
4531 while (nChars && pRun)
4532 {
4533 int nLen;
4534
4535 if (pRun->member.run.nFlags & MERF_ENDCELL &&
4536 pRun->member.run.nFlags & MERF_ENDPARA)
4537 {
4538 *buffer = '\t';
4539 nLen = 1;
4540 } else if (pRun->member.run.nFlags & MERF_ENDPARA) {
4541 if (!ME_FindItemFwd(pRun, diRun)) {
4542 /* No '\r' is appended to the last paragraph. */
4543 nLen = 0;
4544 } else if (bCRLF && nChars == 1) {
4545 nLen = 0;
4546 nChars = 0;
4547 } else {
4548 WCHAR cr_lf[] = {'\r', '\n', 0};
4549 WCHAR *szData;
4550
4551 if (bCRLF)
4552 {
4553 nLen = 2;
4554 szData = cr_lf;
4555 } else {
4556 nLen = pRun->member.run.strText->nLen;
4557 szData = pRun->member.run.strText->szData;
4558 }
4559 nLen = min(nChars, nLen - nOffset);
4560 CopyMemory(buffer, szData + nOffset, sizeof(WCHAR) * nLen);
4561 }
4562 } else {
4563 nLen = min(nChars, pRun->member.run.strText->nLen - nOffset);
4564 CopyMemory(buffer, pRun->member.run.strText->szData + nOffset,
4565 sizeof(WCHAR) * nLen);
4566 }
4567 nChars -= nLen;
4568 nWritten += nLen;
4569 buffer += nLen;
4570 nOffset = 0;
4571
4572 pRun = ME_FindItemFwd(pRun, diRun);
4573 }
4574 *buffer = 0;
4575 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4576 return nWritten;
4577 }
4578
4579 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4580 {
4581 WNDCLASSW wcW;
4582 WNDCLASSA wcA;
4583
4584 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4585 wcW.lpfnWndProc = RichEditWndProcW;
4586 wcW.cbClsExtra = 0;
4587 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4588 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4589 wcW.hIcon = NULL;
4590 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4591 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4592 wcW.lpszMenuName = NULL;
4593
4594 if (is_version_nt())
4595 {
4596 wcW.lpszClassName = RichEdit20W;
4597 if (!RegisterClassW(&wcW)) return FALSE;
4598 wcW.lpszClassName = RichEdit50W;
4599 if (!RegisterClassW(&wcW)) return FALSE;
4600 }
4601 else
4602 {
4603 /* WNDCLASSA/W have the same layout */
4604 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4605 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4606 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4607 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4608 }
4609
4610 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4611 wcA.lpfnWndProc = RichEditWndProcA;
4612 wcA.cbClsExtra = 0;
4613 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4614 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4615 wcA.hIcon = NULL;
4616 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4617 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4618 wcA.lpszMenuName = NULL;
4619 wcA.lpszClassName = "RichEdit20A";
4620 if (!RegisterClassA(&wcA)) return FALSE;
4621 wcA.lpszClassName = "RichEdit50A";
4622 if (!RegisterClassA(&wcA)) return FALSE;
4623
4624 return TRUE;
4625 }
4626
4627 static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4628 /* FIXME: Not implemented */
4629 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4630 hWnd, msg, get_msg_name(msg), wParam, lParam);
4631 return DefWindowProcW(hWnd, msg, wParam, lParam);
4632 }
4633
4634 static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4635 /* FIXME: Not implemented */
4636 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4637 hWnd, msg, get_msg_name(msg), wParam, lParam);
4638 return DefWindowProcW(hWnd, msg, wParam, lParam);
4639 }
4640
4641 /******************************************************************
4642 * REExtendedRegisterClass (RICHED20.8)
4643 *
4644 * FIXME undocumented
4645 * Need to check for errors and implement controls and callbacks
4646 */
4647 LRESULT WINAPI REExtendedRegisterClass(void)
4648 {
4649 WNDCLASSW wcW;
4650 UINT result;
4651
4652 FIXME("semi stub\n");
4653
4654 wcW.cbClsExtra = 0;
4655 wcW.cbWndExtra = 4;
4656 wcW.hInstance = NULL;
4657 wcW.hIcon = NULL;
4658 wcW.hCursor = NULL;
4659 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4660 wcW.lpszMenuName = NULL;
4661
4662 if (!ME_ListBoxRegistered)
4663 {
4664 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4665 wcW.lpfnWndProc = REListWndProc;
4666 wcW.lpszClassName = REListBox20W;
4667 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4668 }
4669
4670 if (!ME_ComboBoxRegistered)
4671 {
4672 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4673 wcW.lpfnWndProc = REComboWndProc;
4674 wcW.lpszClassName = REComboBox20W;
4675 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4676 }
4677
4678 result = 0;
4679 if (ME_ListBoxRegistered)
4680 result += 1;
4681 if (ME_ComboBoxRegistered)
4682 result += 2;
4683
4684 return result;
4685 }
4686
4687 static BOOL isurlspecial(WCHAR c)
4688 {
4689 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4690 return strchrW( special_chars, c ) != NULL;
4691 }
4692
4693 /**
4694 * This proc takes a selection, and scans it forward in order to select the span
4695 * of a possible URL candidate. A possible URL candidate must start with isalnum
4696 * or one of the following special characters: *|/\+%#@ and must consist entirely
4697 * of the characters allowed to start the URL, plus : (colon) which may occur
4698 * at most once, and not at either end.
4699 *
4700 * sel_max == -1 indicates scan to end of text.
4701 */
4702 static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
4703 int * candidate_min, int * candidate_max)
4704 {
4705 ME_DisplayItem * item;
4706 ME_DisplayItem * para;
4707 int nStart;
4708 BOOL foundColon = FALSE;
4709 WCHAR lastAcceptedChar = '\0';
4710
4711 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
4712
4713 *candidate_min = *candidate_max = -1;
4714 ME_RunOfsFromCharOfs(editor, sel_min, &para, &item, &nStart);
4715 TRACE("nStart = %d\n", nStart);
4716 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4717 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
4718 {
4719 ME_DisplayItem * next_item;
4720
4721 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
4722 /* Find start of candidate */
4723 if (*candidate_min == -1) {
4724 while (nStart < item->member.run.strText->nLen &&
4725 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4726 isurlspecial(item->member.run.strText->szData[nStart]))) {
4727 nStart++;
4728 }
4729 if (nStart < item->member.run.strText->nLen &&
4730 (isalnumW(item->member.run.strText->szData[nStart]) ||
4731 isurlspecial(item->member.run.strText->szData[nStart]))) {
4732 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4733 lastAcceptedChar = item->member.run.strText->szData[nStart];
4734 nStart++;
4735 }
4736 }
4737
4738 /* Find end of candidate */
4739 if (*candidate_min >= 0) {
4740 while (nStart < item->member.run.strText->nLen &&
4741 (isalnumW(item->member.run.strText->szData[nStart]) ||
4742 isurlspecial(item->member.run.strText->szData[nStart]) ||
4743 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
4744 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
4745 lastAcceptedChar = item->member.run.strText->szData[nStart];
4746 nStart++;
4747 }
4748 if (nStart < item->member.run.strText->nLen &&
4749 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4750 isurlspecial(item->member.run.strText->szData[nStart]) )) {
4751 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4752 nStart++;
4753 if (lastAcceptedChar == ':') (*candidate_max)--;
4754 return TRUE;
4755 }
4756 }
4757 } else {
4758 /* End of paragraph: skip it if before candidate span, or terminates
4759 current active span */
4760 if (*candidate_min >= 0) {
4761 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
4762 if (lastAcceptedChar == ':') (*candidate_max)--;
4763 return TRUE;
4764 }
4765 }
4766
4767 /* Reaching this point means no span was found, so get next span */
4768 next_item = ME_FindItemFwd(item, diRun);
4769 if (!next_item) {
4770 if (*candidate_min >= 0) {
4771 /* There are no further runs, so take end of text as end of candidate */
4772 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4773 if (lastAcceptedChar == ':') (*candidate_max)--;
4774 return TRUE;
4775 }
4776 }
4777 item = next_item;
4778 para = ME_GetParagraph(item);
4779 nStart = 0;
4780 }
4781
4782 if (item) {
4783 if (*candidate_min >= 0) {
4784 /* There are no further runs, so take end of text as end of candidate */
4785 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4786 if (lastAcceptedChar == ':') (*candidate_max)--;
4787 return TRUE;
4788 }
4789 }
4790 return FALSE;
4791 }
4792
4793 /**
4794 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4795 */
4796 static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
4797 {
4798 struct prefix_s {
4799 const char *text;
4800 int length;
4801 } prefixes[12] = {
4802 /* Code below depends on these being in decreasing length order! */
4803 {"prospero:", 10},
4804 {"telnet:", 8},
4805 {"gopher:", 8},
4806 {"mailto:", 8},
4807 {"https:", 7},
4808 {"file:", 6},
4809 {"news:", 6},
4810 {"wais:", 6},
4811 {"nntp:", 6},
4812 {"http:", 5},
4813 {"www.", 5},
4814 {"ftp:", 5},
4815 };
4816 LPWSTR bufferW = NULL;
4817 WCHAR bufW[32];
4818 unsigned int i;
4819
4820 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4821 assert(sel_min <= sel_max);
4822 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
4823 {
4824 if (sel_max - sel_min < prefixes[i].length) continue;
4825 if (bufferW == NULL) {
4826 bufferW = heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
4827 }
4828 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, lstrlenA(prefixes[i].text)), 0);
4829 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
4830 if (!lstrcmpW(bufW, bufferW))
4831 {
4832 heap_free(bufferW);
4833 return TRUE;
4834 }
4835 }
4836 heap_free(bufferW);
4837 return FALSE;
4838 }
4839
4840 /**
4841 * This proc walks through the indicated selection and evaluates whether each
4842 * section identified by ME_FindNextURLCandidate and in-between sections have
4843 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4844 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4845 *
4846 * Returns TRUE if at least one section was modified.
4847 */
4848 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
4849 {
4850 BOOL modified = FALSE;
4851 int cMin, cMax;
4852
4853 if (!editor->AutoURLDetect_bEnable) return FALSE;
4854
4855 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4856 do
4857 {
4858 int beforeURL[2];
4859 int inURL[2];
4860 CHARFORMAT2W link;
4861
4862 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4863 {
4864 /* Section before candidate is not an URL */
4865 beforeURL[0] = sel_min;
4866 beforeURL[1] = cMin;
4867
4868 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4869 {
4870 inURL[0] = cMin; inURL[1] = cMax;
4871 }
4872 else
4873 {
4874 beforeURL[1] = cMax;
4875 inURL[0] = inURL[1] = -1;
4876 }
4877 sel_min = cMax;
4878 }
4879 else
4880 {
4881 /* No more candidates until end of selection */
4882 beforeURL[0] = sel_min;
4883 beforeURL[1] = sel_max;
4884 inURL[0] = inURL[1] = -1;
4885 sel_min = sel_max;
4886 }
4887
4888 if (beforeURL[0] < beforeURL[1])
4889 {
4890 /* CFE_LINK effect should be consistently unset */
4891 link.cbSize = sizeof(link);
4892 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4893 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4894 {
4895 /* CFE_LINK must be unset from this range */
4896 memset(&link, 0, sizeof(CHARFORMAT2W));
4897 link.cbSize = sizeof(link);
4898 link.dwMask = CFM_LINK;
4899 link.dwEffects = 0;
4900 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4901 modified = TRUE;
4902 }
4903 }
4904 if (inURL[0] < inURL[1])
4905 {
4906 /* CFE_LINK effect should be consistently set */
4907 link.cbSize = sizeof(link);
4908 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4909 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4910 {
4911 /* CFE_LINK must be set on this range */
4912 memset(&link, 0, sizeof(CHARFORMAT2W));
4913 link.cbSize = sizeof(link);
4914 link.dwMask = CFM_LINK;
4915 link.dwEffects = CFE_LINK;
4916 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4917 modified = TRUE;
4918 }
4919 }
4920 } while (sel_min < sel_max);
4921 return modified;
4922 }
Maarten's multimedia branch