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[wine.git] / dlls / riched20 / editor.c
blob3dc11337d887ea91a02857d2521aa891d7e72509
1 /*
2 * RichEdit - functions dealing with editor object
3 *
4 * Copyright 2004 by Krzysztof Foltman
5 * Copyright 2005 by Cihan Altinay
6 * Copyright 2005 by Phil Krylov
7 * Copyright 2008 Eric Pouech
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 API implementation status:
26
27 Messages (ANSI versions not done yet)
28 + EM_AUTOURLDETECT 2.0
29 + EM_CANPASTE
30 + EM_CANREDO 2.0
31 + EM_CANUNDO
32 + EM_CHARFROMPOS
33 - EM_DISPLAYBAND
34 + EM_EMPTYUNDOBUFFER
35 + EM_EXGETSEL
36 + EM_EXLIMITTEXT
37 + EM_EXLINEFROMCHAR
38 + EM_EXSETSEL
39 + EM_FINDTEXT (only FR_DOWN flag implemented)
40 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_FINDWORDBREAK
42 - EM_FMTLINES
43 - EM_FORMATRANGE
44 + EM_GETAUTOURLDETECT 2.0
45 - EM_GETBIDIOPTIONS 3.0
46 - EM_GETCHARFORMAT (partly done)
47 - EM_GETEDITSTYLE
48 + EM_GETEVENTMASK
49 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
50 - EM_GETIMECOLOR 1.0asian
51 - EM_GETIMECOMPMODE 2.0
52 - EM_GETIMEOPTIONS 1.0asian
53 - EM_GETIMESTATUS
54 - EM_GETLANGOPTIONS 2.0
55 + EM_GETLIMITTEXT
56 + EM_GETLINE
57 + EM_GETLINECOUNT returns number of rows, not of paragraphs
58 + EM_GETMODIFY
59 + EM_GETOLEINTERFACE
60 + EM_GETOPTIONS
61 + EM_GETPARAFORMAT
62 + EM_GETPASSWORDCHAR 2.0
63 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETRECT
65 - EM_GETREDONAME 2.0
66 + EM_GETSEL
67 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETSCROLLPOS 3.0
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 + EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 - EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 - EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_SETIMESTATUS
103 - EM_SETLANGOPTIONS 2.0
104 - EM_SETLIMITTEXT
105 - EM_SETMARGINS
106 + EM_SETMODIFY (not sure if implementation is correct)
107 - EM_SETOLECALLBACK
108 + EM_SETOPTIONS (partially implemented)
109 - EM_SETPALETTE 2.0
110 + EM_SETPARAFORMAT
111 + EM_SETPASSWORDCHAR 2.0
112 - EM_SETPUNCTUATION 1.0asian
113 + EM_SETREADONLY no beep on modification attempt
114 + EM_SETRECT
115 + EM_SETRECTNP (EM_SETRECT without repainting)
116 + EM_SETSEL
117 + EM_SETSCROLLPOS 3.0
118 - EM_SETTABSTOPS 3.0
119 - EM_SETTARGETDEVICE (partial)
120 + EM_SETTEXTEX 3.0 (proper style?)
121 - EM_SETTEXTMODE 2.0
122 - EM_SETTYPOGRAPHYOPTIONS 3.0
123 + EM_SETUNDOLIMIT 2.0
124 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
125 - EM_SETWORDBREAKPROCEX
126 - EM_SETWORDWRAPMODE 1.0asian
127 + EM_SETZOOM 3.0
128 + EM_SHOWSCROLLBAR 2.0
129 + EM_STOPGROUPTYPING 2.0
130 + EM_STREAMIN
131 + EM_STREAMOUT
132 + EM_UNDO
133 + WM_CHAR
134 + WM_CLEAR
135 + WM_COPY
136 + WM_CUT
137 + WM_GETDLGCODE (the current implementation is incomplete)
138 + WM_GETTEXT (ANSI&Unicode)
139 + WM_GETTEXTLENGTH (ANSI version sucks)
140 + WM_HSCROLL
141 + WM_PASTE
142 + WM_SETFONT
143 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
144 + WM_STYLECHANGING (seems to do nothing)
145 + WM_STYLECHANGED (seems to do nothing)
146 + WM_UNICHAR
147 + WM_VSCROLL
148
149 Notifications
150
151 * EN_CHANGE (sent from the wrong place)
152 - EN_CORRECTTEXT
153 - EN_DROPFILES
154 - EN_ERRSPACE
155 - EN_HSCROLL
156 - EN_IMECHANGE
157 + EN_KILLFOCUS
158 - EN_LINK
159 - EN_MAXTEXT
160 - EN_MSGFILTER
161 - EN_OLEOPFAILED
162 - EN_PROTECTED
163 + EN_REQUESTRESIZE
164 - EN_SAVECLIPBOARD
165 + EN_SELCHANGE
166 + EN_SETFOCUS
167 - EN_STOPNOUNDO
168 * EN_UPDATE (sent from the wrong place)
169 - EN_VSCROLL
170
171 Styles
172
173 - ES_AUTOHSCROLL
174 - ES_AUTOVSCROLL
175 - ES_CENTER
176 + ES_DISABLENOSCROLL (scrollbar is always visible)
177 - ES_EX_NOCALLOLEINIT
178 - ES_LEFT
179 - ES_MULTILINE (currently single line controls aren't supported)
180 - ES_NOIME
181 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
182 - ES_RIGHT
183 - ES_SAVESEL
184 - ES_SELFIME
185 - ES_SUNKEN
186 - ES_VERTICAL
187 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
188 - WS_SETFONT
189 + WS_HSCROLL
190 + WS_VSCROLL
191 */
192
193 /*
194 * RICHED20 TODO (incomplete):
195 *
196 * - messages/styles/notifications listed above
197 * - add remaining CHARFORMAT/PARAFORMAT fields
198 * - right/center align should strip spaces from the beginning
199 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
200 * - COM interface (looks like a major pain in the TODO list)
201 * - calculate heights of pictures (half-done)
202 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
203 * - find/replace
204 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
205 * - italic caret with italic fonts
206 * - IME
207 * - most notifications aren't sent at all (the most important ones are)
208 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
209 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
210 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
211 * - full justification
212 * - hyphenation
213 * - tables
214 * - ListBox & ComboBox not implemented
215 *
216 * Bugs that are probably fixed, but not so easy to verify:
217 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
218 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
219 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
220 * - caret shouldn't be displayed when selection isn't empty
221 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
222 * - undo for setting default format (done, might be buggy)
223 * - styles might be not released properly (looks like they work like charm, but who knows?
224 *
225 */
226
227 #include "editor.h"
228 #include "commdlg.h"
229 #include "winreg.h"
230 #define NO_SHLWAPI_STREAM
231 #include "shlwapi.h"
232 #include "rtf.h"
233 #include "imm.h"
234 #include "res.h"
235
236 #define STACK_SIZE_DEFAULT 100
237 #define STACK_SIZE_MAX 1000
238
239 #define TEXT_LIMIT_DEFAULT 32767
240
241 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
242
243 static BOOL ME_RegisterEditorClass(HINSTANCE);
244 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
245
246 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
247 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
248 static HCURSOR hLeft;
249
250 int me_debug = 0;
251 HANDLE me_heap = NULL;
252
253 static BOOL ME_ListBoxRegistered = FALSE;
254 static BOOL ME_ComboBoxRegistered = FALSE;
255
256 static inline int is_version_nt(void)
257 {
258 return !(GetVersion() & 0x80000000);
259 }
260
261 static ME_TextBuffer *ME_MakeText(void) {
262
263 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
264
265 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
266 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
267
268 p1->prev = NULL;
269 p1->next = p2;
270 p2->prev = p1;
271 p2->next = NULL;
272 p1->member.para.next_para = p2;
273 p2->member.para.prev_para = p1;
274 p2->member.para.nCharOfs = 0;
275
276 buf->pFirst = p1;
277 buf->pLast = p2;
278 buf->pCharStyle = NULL;
279
280 return buf;
281 }
282
283
284 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
285 {
286 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
287 WCHAR *pText;
288
289 TRACE("%08x %p\n", dwFormat, stream);
290
291 do {
292 long nWideChars = 0;
293
294 if (!stream->dwSize)
295 {
296 ME_StreamInFill(stream);
297 if (stream->editstream->dwError)
298 break;
299 if (!stream->dwSize)
300 break;
301 }
302
303 if (!(dwFormat & SF_UNICODE))
304 {
305 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
306 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
307 pText = wszText;
308 }
309 else
310 {
311 nWideChars = stream->dwSize >> 1;
312 pText = (WCHAR *)stream->buffer;
313 }
314
315 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
316 if (stream->dwSize == 0)
317 break;
318 stream->dwSize = 0;
319 } while(1);
320 ME_CommitUndo(editor);
321 ME_UpdateRepaint(editor);
322 return 0;
323 }
324
325 static void ME_ApplyBorderProperties(RTF_Info *info,
326 ME_BorderRect *borderRect,
327 RTFBorder *borderDef)
328 {
329 int i, colorNum;
330 ME_Border *pBorders[] = {&borderRect->top,
331 &borderRect->left,
332 &borderRect->bottom,
333 &borderRect->right};
334 for (i = 0; i < 4; i++)
335 {
336 RTFColor *colorDef = info->colorList;
337 pBorders[i]->width = borderDef[i].width;
338 colorNum = borderDef[i].color;
339 while (colorDef && colorDef->rtfCNum != colorNum)
340 colorDef = colorDef->rtfNextColor;
341 if (colorDef)
342 pBorders[i]->colorRef = RGB(
343 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
344 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
345 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
346 else
347 pBorders[i]->colorRef = RGB(0, 0, 0);
348 }
349 }
350
351 void ME_RTFCharAttrHook(RTF_Info *info)
352 {
353 CHARFORMAT2W fmt;
354 fmt.cbSize = sizeof(fmt);
355 fmt.dwMask = 0;
356 fmt.dwEffects = 0;
357
358 switch(info->rtfMinor)
359 {
360 case rtfPlain:
361 /* FIXME add more flags once they're implemented */
362 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
363 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
364 fmt.yHeight = 12*20; /* 12pt */
365 fmt.wWeight = FW_NORMAL;
366 fmt.bUnderlineType = CFU_UNDERLINENONE;
367 break;
368 case rtfBold:
369 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
370 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
371 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
372 break;
373 case rtfItalic:
374 fmt.dwMask = CFM_ITALIC;
375 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
376 break;
377 case rtfUnderline:
378 fmt.dwMask = CFM_UNDERLINETYPE;
379 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
380 break;
381 case rtfDotUnderline:
382 fmt.dwMask = CFM_UNDERLINETYPE;
383 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
384 break;
385 case rtfDbUnderline:
386 fmt.dwMask = CFM_UNDERLINETYPE;
387 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
388 break;
389 case rtfWordUnderline:
390 fmt.dwMask = CFM_UNDERLINETYPE;
391 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
392 break;
393 case rtfNoUnderline:
394 fmt.dwMask = CFM_UNDERLINETYPE;
395 fmt.bUnderlineType = CFU_UNDERLINENONE;
396 break;
397 case rtfStrikeThru:
398 fmt.dwMask = CFM_STRIKEOUT;
399 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
400 break;
401 case rtfSubScript:
402 case rtfSuperScript:
403 case rtfSubScrShrink:
404 case rtfSuperScrShrink:
405 case rtfNoSuperSub:
406 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
407 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
408 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
409 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
410 break;
411 case rtfInvisible:
412 fmt.dwMask = CFM_HIDDEN;
413 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
414 break;
415 case rtfBackColor:
416 fmt.dwMask = CFM_BACKCOLOR;
417 fmt.dwEffects = 0;
418 if (info->rtfParam == 0)
419 fmt.dwEffects = CFE_AUTOBACKCOLOR;
420 else if (info->rtfParam != rtfNoParam)
421 {
422 RTFColor *c = RTFGetColor(info, info->rtfParam);
423 if (c && c->rtfCBlue >= 0)
424 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
425 else
426 fmt.dwEffects = CFE_AUTOBACKCOLOR;
427 }
428 break;
429 case rtfForeColor:
430 fmt.dwMask = CFM_COLOR;
431 fmt.dwEffects = 0;
432 if (info->rtfParam == 0)
433 fmt.dwEffects = CFE_AUTOCOLOR;
434 else if (info->rtfParam != rtfNoParam)
435 {
436 RTFColor *c = RTFGetColor(info, info->rtfParam);
437 if (c && c->rtfCBlue >= 0)
438 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
439 else {
440 fmt.dwEffects = CFE_AUTOCOLOR;
441 }
442 }
443 break;
444 case rtfFontNum:
445 if (info->rtfParam != rtfNoParam)
446 {
447 RTFFont *f = RTFGetFont(info, info->rtfParam);
448 if (f)
449 {
450 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
451 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
452 fmt.bCharSet = f->rtfFCharSet;
453 fmt.dwMask = CFM_FACE | CFM_CHARSET;
454 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
455 }
456 }
457 break;
458 case rtfFontSize:
459 fmt.dwMask = CFM_SIZE;
460 if (info->rtfParam != rtfNoParam)
461 fmt.yHeight = info->rtfParam*10;
462 break;
463 }
464 if (fmt.dwMask) {
465 ME_Style *style2;
466 RTFFlushOutputBuffer(info);
467 /* FIXME too slow ? how come ? */
468 style2 = ME_ApplyStyle(info->style, &fmt);
469 ME_ReleaseStyle(info->style);
470 info->style = style2;
471 info->styleChanged = TRUE;
472 }
473 }
474
475 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
476 the same tags mean different things in different contexts */
477 void ME_RTFParAttrHook(RTF_Info *info)
478 {
479 PARAFORMAT2 fmt;
480 fmt.cbSize = sizeof(fmt);
481 fmt.dwMask = 0;
482
483 switch(info->rtfMinor)
484 {
485 case rtfParDef: /* restores default paragraph attributes */
486 if (!info->editor->bEmulateVersion10) /* v4.1 */
487 info->borderType = RTFBorderParaLeft;
488 else /* v1.0 - 3.0 */
489 info->borderType = RTFBorderParaTop;
490 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
491 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
492 PFM_STARTINDENT;
493 /* TODO: numbering, shading */
494 fmt.wAlignment = PFA_LEFT;
495 fmt.cTabCount = 0;
496 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
497 fmt.wBorderWidth = fmt.wBorders = 0;
498 fmt.wBorderSpace = 0;
499 fmt.bLineSpacingRule = 0;
500 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
501 fmt.dyLineSpacing = 0;
502 if (!info->editor->bEmulateVersion10) /* v4.1 */
503 {
504 if (info->tableDef && info->tableDef->tableRowStart &&
505 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
506 {
507 ME_Cursor cursor;
508 ME_DisplayItem *para;
509 /* We are just after a table row. */
510 RTFFlushOutputBuffer(info);
511 cursor = info->editor->pCursors[0];
512 para = cursor.pPara;
513 if (para == info->tableDef->tableRowStart->member.para.next_para
514 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
515 {
516 /* Since the table row end, no text has been inserted, and the \intbl
517 * control word has not be used. We can confirm that we are not in a
518 * table anymore.
519 */
520 info->tableDef->tableRowStart = NULL;
521 info->canInheritInTbl = FALSE;
522 }
523 }
524 } else { /* v1.0 - v3.0 */
525 fmt.dwMask |= PFM_TABLE;
526 fmt.wEffects &= ~PFE_TABLE;
527 }
528 break;
529 case rtfNestLevel:
530 if (!info->editor->bEmulateVersion10) /* v4.1 */
531 {
532 while (info->rtfParam > info->nestingLevel) {
533 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
534 ZeroMemory(tableDef, sizeof(RTFTable));
535 tableDef->parent = info->tableDef;
536 info->tableDef = tableDef;
537
538 RTFFlushOutputBuffer(info);
539 if (tableDef->tableRowStart &&
540 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
541 {
542 ME_DisplayItem *para = tableDef->tableRowStart;
543 para = para->member.para.next_para;
544 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
545 tableDef->tableRowStart = para;
546 } else {
547 ME_Cursor cursor;
548 WCHAR endl = '\r';
549 cursor = info->editor->pCursors[0];
550 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
551 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
552 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
553 }
554
555 info->nestingLevel++;
556 }
557 info->canInheritInTbl = FALSE;
558 }
559 break;
560 case rtfInTable:
561 {
562 if (!info->editor->bEmulateVersion10) /* v4.1 */
563 {
564 if (info->nestingLevel < 1)
565 {
566 RTFTable *tableDef;
567 if (!info->tableDef)
568 {
569 info->tableDef = ALLOC_OBJ(RTFTable);
570 ZeroMemory(info->tableDef, sizeof(RTFTable));
571 }
572 tableDef = info->tableDef;
573 RTFFlushOutputBuffer(info);
574 if (tableDef->tableRowStart &&
575 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
576 {
577 ME_DisplayItem *para = tableDef->tableRowStart;
578 para = para->member.para.next_para;
579 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
580 tableDef->tableRowStart = para;
581 } else {
582 ME_Cursor cursor;
583 WCHAR endl = '\r';
584 cursor = info->editor->pCursors[0];
585 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
586 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
587 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
588 }
589 info->nestingLevel = 1;
590 info->canInheritInTbl = TRUE;
591 }
592 return;
593 } else { /* v1.0 - v3.0 */
594 fmt.dwMask |= PFM_TABLE;
595 fmt.wEffects |= PFE_TABLE;
596 }
597 break;
598 }
599 case rtfFirstIndent:
600 ME_GetSelectionParaFormat(info->editor, &fmt);
601 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
602 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
603 fmt.dxOffset = -info->rtfParam;
604 break;
605 case rtfLeftIndent:
606 ME_GetSelectionParaFormat(info->editor, &fmt);
607 fmt.dwMask = PFM_STARTINDENT;
608 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
609 break;
610 case rtfRightIndent:
611 fmt.dwMask = PFM_RIGHTINDENT;
612 fmt.dxRightIndent = info->rtfParam;
613 break;
614 case rtfQuadLeft:
615 case rtfQuadJust:
616 fmt.dwMask = PFM_ALIGNMENT;
617 fmt.wAlignment = PFA_LEFT;
618 break;
619 case rtfQuadRight:
620 fmt.dwMask = PFM_ALIGNMENT;
621 fmt.wAlignment = PFA_RIGHT;
622 break;
623 case rtfQuadCenter:
624 fmt.dwMask = PFM_ALIGNMENT;
625 fmt.wAlignment = PFA_CENTER;
626 break;
627 case rtfTabPos:
628 ME_GetSelectionParaFormat(info->editor, &fmt);
629 if (!(fmt.dwMask & PFM_TABSTOPS))
630 {
631 fmt.cTabCount = 0;
632 }
633 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
634 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
635 fmt.dwMask = PFM_TABSTOPS;
636 break;
637 case rtfKeep:
638 fmt.dwMask = PFM_KEEP;
639 fmt.wEffects = PFE_KEEP;
640 break;
641 case rtfNoWidowControl:
642 fmt.dwMask = PFM_NOWIDOWCONTROL;
643 fmt.wEffects = PFE_NOWIDOWCONTROL;
644 break;
645 case rtfKeepNext:
646 fmt.dwMask = PFM_KEEPNEXT;
647 fmt.wEffects = PFE_KEEPNEXT;
648 break;
649 case rtfSpaceAfter:
650 fmt.dwMask = PFM_SPACEAFTER;
651 fmt.dySpaceAfter = info->rtfParam;
652 break;
653 case rtfSpaceBefore:
654 fmt.dwMask = PFM_SPACEBEFORE;
655 fmt.dySpaceBefore = info->rtfParam;
656 break;
657 case rtfSpaceBetween:
658 fmt.dwMask = PFM_LINESPACING;
659 if ((int)info->rtfParam > 0)
660 {
661 fmt.dyLineSpacing = info->rtfParam;
662 fmt.bLineSpacingRule = 3;
663 }
664 else
665 {
666 fmt.dyLineSpacing = info->rtfParam;
667 fmt.bLineSpacingRule = 4;
668 }
669 case rtfSpaceMultiply:
670 fmt.dwMask = PFM_LINESPACING;
671 fmt.dyLineSpacing = info->rtfParam * 20;
672 fmt.bLineSpacingRule = 5;
673 break;
674 case rtfParBullet:
675 fmt.dwMask = PFM_NUMBERING;
676 fmt.wNumbering = PFN_BULLET;
677 break;
678 case rtfParSimple:
679 fmt.dwMask = PFM_NUMBERING;
680 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
681 break;
682 case rtfParNumDecimal:
683 fmt.dwMask = PFM_NUMBERING;
684 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
685 break;
686 case rtfParNumIndent:
687 fmt.dwMask = PFM_NUMBERINGTAB;
688 fmt.wNumberingTab = info->rtfParam;
689 break;
690 case rtfParNumStartAt:
691 fmt.dwMask = PFM_NUMBERINGSTART;
692 fmt.wNumberingStart = info->rtfParam;
693 break;
694 case rtfBorderLeft:
695 info->borderType = RTFBorderParaLeft;
696 ME_GetSelectionParaFormat(info->editor, &fmt);
697 if (!(fmt.dwMask & PFM_BORDER))
698 {
699 fmt.wBorderSpace = 0;
700 fmt.wBorderWidth = 1;
701 fmt.wBorders = 0;
702 }
703 fmt.wBorders |= 1;
704 fmt.dwMask = PFM_BORDER;
705 break;
706 case rtfBorderRight:
707 info->borderType = RTFBorderParaRight;
708 ME_GetSelectionParaFormat(info->editor, &fmt);
709 if (!(fmt.dwMask & PFM_BORDER))
710 {
711 fmt.wBorderSpace = 0;
712 fmt.wBorderWidth = 1;
713 fmt.wBorders = 0;
714 }
715 fmt.wBorders |= 2;
716 fmt.dwMask = PFM_BORDER;
717 break;
718 case rtfBorderTop:
719 info->borderType = RTFBorderParaTop;
720 ME_GetSelectionParaFormat(info->editor, &fmt);
721 if (!(fmt.dwMask & PFM_BORDER))
722 {
723 fmt.wBorderSpace = 0;
724 fmt.wBorderWidth = 1;
725 fmt.wBorders = 0;
726 }
727 fmt.wBorders |= 4;
728 fmt.dwMask = PFM_BORDER;
729 break;
730 case rtfBorderBottom:
731 info->borderType = RTFBorderParaBottom;
732 ME_GetSelectionParaFormat(info->editor, &fmt);
733 if (!(fmt.dwMask & PFM_BORDER))
734 {
735 fmt.wBorderSpace = 0;
736 fmt.wBorderWidth = 1;
737 fmt.wBorders = 0;
738 }
739 fmt.wBorders |= 8;
740 fmt.dwMask = PFM_BORDER;
741 break;
742 case rtfBorderSingle:
743 ME_GetSelectionParaFormat(info->editor, &fmt);
744 /* we assume that borders have been created before (RTF spec) */
745 fmt.wBorders &= ~0x700;
746 fmt.wBorders |= 1 << 8;
747 fmt.dwMask = PFM_BORDER;
748 break;
749 case rtfBorderThick:
750 ME_GetSelectionParaFormat(info->editor, &fmt);
751 /* we assume that borders have been created before (RTF spec) */
752 fmt.wBorders &= ~0x700;
753 fmt.wBorders |= 2 << 8;
754 fmt.dwMask = PFM_BORDER;
755 break;
756 case rtfBorderShadow:
757 ME_GetSelectionParaFormat(info->editor, &fmt);
758 /* we assume that borders have been created before (RTF spec) */
759 fmt.wBorders &= ~0x700;
760 fmt.wBorders |= 10 << 8;
761 fmt.dwMask = PFM_BORDER;
762 break;
763 case rtfBorderDouble:
764 ME_GetSelectionParaFormat(info->editor, &fmt);
765 /* we assume that borders have been created before (RTF spec) */
766 fmt.wBorders &= ~0x700;
767 fmt.wBorders |= 7 << 8;
768 fmt.dwMask = PFM_BORDER;
769 break;
770 case rtfBorderDot:
771 ME_GetSelectionParaFormat(info->editor, &fmt);
772 /* we assume that borders have been created before (RTF spec) */
773 fmt.wBorders &= ~0x700;
774 fmt.wBorders |= 11 << 8;
775 fmt.dwMask = PFM_BORDER;
776 break;
777 case rtfBorderWidth:
778 {
779 int borderSide = info->borderType & RTFBorderSideMask;
780 RTFTable *tableDef = info->tableDef;
781 ME_GetSelectionParaFormat(info->editor, &fmt);
782 /* we assume that borders have been created before (RTF spec) */
783 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
784 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
785 {
786 RTFBorder *border;
787 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
788 break;
789 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
790 border->width = info->rtfParam;
791 break;
792 }
793 fmt.dwMask = PFM_BORDER;
794 break;
795 }
796 case rtfBorderSpace:
797 ME_GetSelectionParaFormat(info->editor, &fmt);
798 /* we assume that borders have been created before (RTF spec) */
799 fmt.wBorderSpace = info->rtfParam;
800 fmt.dwMask = PFM_BORDER;
801 break;
802 case rtfBorderColor:
803 {
804 RTFTable *tableDef = info->tableDef;
805 int borderSide = info->borderType & RTFBorderSideMask;
806 int borderType = info->borderType & RTFBorderTypeMask;
807 switch(borderType)
808 {
809 case RTFBorderTypePara:
810 if (!info->editor->bEmulateVersion10) /* v4.1 */
811 break;
812 /* v1.0 - 3.0 treat paragraph and row borders the same. */
813 case RTFBorderTypeRow:
814 if (tableDef) {
815 tableDef->border[borderSide].color = info->rtfParam;
816 }
817 break;
818 case RTFBorderTypeCell:
819 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
820 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
821 }
822 break;
823 }
824 break;
825 }
826 }
827 if (fmt.dwMask) {
828 RTFFlushOutputBuffer(info);
829 /* FIXME too slow ? how come ?*/
830 ME_SetSelectionParaFormat(info->editor, &fmt);
831 }
832 }
833
834 void ME_RTFTblAttrHook(RTF_Info *info)
835 {
836 switch (info->rtfMinor)
837 {
838 case rtfRowDef:
839 {
840 if (!info->editor->bEmulateVersion10) /* v4.1 */
841 info->borderType = 0; /* Not sure */
842 else /* v1.0 - 3.0 */
843 info->borderType = RTFBorderRowTop;
844 if (!info->tableDef) {
845 info->tableDef = ME_MakeTableDef(info->editor);
846 } else {
847 ME_InitTableDef(info->editor, info->tableDef);
848 }
849 break;
850 }
851 case rtfCellPos:
852 {
853 int cellNum;
854 if (!info->tableDef)
855 {
856 info->tableDef = ME_MakeTableDef(info->editor);
857 }
858 cellNum = info->tableDef->numCellsDefined;
859 if (cellNum >= MAX_TABLE_CELLS)
860 break;
861 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
862 if (cellNum < MAX_TAB_STOPS) {
863 /* Tab stops were used to store cell positions before v4.1 but v4.1
864 * still seems to set the tabstops without using them. */
865 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
866 PARAFORMAT2 *pFmt = para->member.para.pFmt;
867 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
868 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
869 }
870 info->tableDef->numCellsDefined++;
871 break;
872 }
873 case rtfRowBordTop:
874 info->borderType = RTFBorderRowTop;
875 break;
876 case rtfRowBordLeft:
877 info->borderType = RTFBorderRowLeft;
878 break;
879 case rtfRowBordBottom:
880 info->borderType = RTFBorderRowBottom;
881 break;
882 case rtfRowBordRight:
883 info->borderType = RTFBorderRowRight;
884 break;
885 case rtfCellBordTop:
886 info->borderType = RTFBorderCellTop;
887 break;
888 case rtfCellBordLeft:
889 info->borderType = RTFBorderCellLeft;
890 break;
891 case rtfCellBordBottom:
892 info->borderType = RTFBorderCellBottom;
893 break;
894 case rtfCellBordRight:
895 info->borderType = RTFBorderCellRight;
896 break;
897 case rtfRowGapH:
898 if (info->tableDef)
899 info->tableDef->gapH = info->rtfParam;
900 break;
901 case rtfRowLeftEdge:
902 if (info->tableDef)
903 info->tableDef->leftEdge = info->rtfParam;
904 break;
905 }
906 }
907
908 void ME_RTFSpecialCharHook(RTF_Info *info)
909 {
910 RTFTable *tableDef = info->tableDef;
911 switch (info->rtfMinor)
912 {
913 case rtfNestCell:
914 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
915 break;
916 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
917 case rtfCell:
918 if (!tableDef)
919 break;
920 RTFFlushOutputBuffer(info);
921 if (!info->editor->bEmulateVersion10) { /* v4.1 */
922 if (tableDef->tableRowStart)
923 {
924 if (!info->nestingLevel &&
925 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
926 {
927 ME_DisplayItem *para = tableDef->tableRowStart;
928 para = para->member.para.next_para;
929 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
930 tableDef->tableRowStart = para;
931 info->nestingLevel = 1;
932 }
933 ME_InsertTableCellFromCursor(info->editor);
934 }
935 } else { /* v1.0 - v3.0 */
936 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
937 PARAFORMAT2 *pFmt = para->member.para.pFmt;
938 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
939 tableDef->numCellsInserted < tableDef->numCellsDefined)
940 {
941 WCHAR tab = '\t';
942 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
943 tableDef->numCellsInserted++;
944 }
945 }
946 break;
947 case rtfNestRow:
948 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
949 break;
950 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
951 case rtfRow:
952 {
953 ME_DisplayItem *para, *cell, *run;
954 int i;
955
956 if (!tableDef)
957 break;
958 RTFFlushOutputBuffer(info);
959 if (!info->editor->bEmulateVersion10) { /* v4.1 */
960 if (!tableDef->tableRowStart)
961 break;
962 if (!info->nestingLevel &&
963 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
964 {
965 para = tableDef->tableRowStart;
966 para = para->member.para.next_para;
967 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
968 tableDef->tableRowStart = para;
969 info->nestingLevel++;
970 }
971 para = tableDef->tableRowStart;
972 cell = ME_FindItemFwd(para, diCell);
973 assert(cell && !cell->member.cell.prev_cell);
974 if (tableDef->numCellsDefined < 1)
975 {
976 /* 2000 twips appears to be the cell size that native richedit uses
977 * when no cell sizes are specified. */
978 const int defaultCellSize = 2000;
979 int nRightBoundary = defaultCellSize;
980 cell->member.cell.nRightBoundary = nRightBoundary;
981 while (cell->member.cell.next_cell) {
982 cell = cell->member.cell.next_cell;
983 nRightBoundary += defaultCellSize;
984 cell->member.cell.nRightBoundary = nRightBoundary;
985 }
986 para = ME_InsertTableCellFromCursor(info->editor);
987 cell = para->member.para.pCell;
988 cell->member.cell.nRightBoundary = nRightBoundary;
989 } else {
990 for (i = 0; i < tableDef->numCellsDefined; i++)
991 {
992 RTFCell *cellDef = &tableDef->cells[i];
993 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
994 ME_ApplyBorderProperties(info, &cell->member.cell.border,
995 cellDef->border);
996 cell = cell->member.cell.next_cell;
997 if (!cell)
998 {
999 para = ME_InsertTableCellFromCursor(info->editor);
1000 cell = para->member.para.pCell;
1001 }
1002 }
1003 /* Cell for table row delimiter is empty */
1004 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1005 }
1006
1007 run = ME_FindItemFwd(cell, diRun);
1008 if (info->editor->pCursors[0].pRun != run ||
1009 info->editor->pCursors[0].nOffset)
1010 {
1011 int nOfs, nChars;
1012 /* Delete inserted cells that aren't defined. */
1013 info->editor->pCursors[1].pRun = run;
1014 info->editor->pCursors[1].pPara = ME_GetParagraph(run);
1015 info->editor->pCursors[1].nOffset = 0;
1016 nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
1017 nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
1018 ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
1019 nChars, TRUE);
1020 }
1021
1022 para = ME_InsertTableRowEndFromCursor(info->editor);
1023 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1024 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1025 ME_ApplyBorderProperties(info, &para->member.para.border,
1026 tableDef->border);
1027 info->nestingLevel--;
1028 if (!info->nestingLevel)
1029 {
1030 if (info->canInheritInTbl) {
1031 tableDef->tableRowStart = para;
1032 } else {
1033 while (info->tableDef) {
1034 tableDef = info->tableDef;
1035 info->tableDef = tableDef->parent;
1036 heap_free(tableDef);
1037 }
1038 }
1039 } else {
1040 info->tableDef = tableDef->parent;
1041 heap_free(tableDef);
1042 }
1043 } else { /* v1.0 - v3.0 */
1044 WCHAR endl = '\r';
1045 ME_DisplayItem *para = info->editor->pCursors[0].pPara;
1046 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1047 pFmt->dxOffset = info->tableDef->gapH;
1048 pFmt->dxStartIndent = info->tableDef->leftEdge;
1049
1050 ME_ApplyBorderProperties(info, &para->member.para.border,
1051 tableDef->border);
1052 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1053 {
1054 WCHAR tab = '\t';
1055 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1056 tableDef->numCellsInserted++;
1057 }
1058 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1059 if (!tableDef->numCellsDefined)
1060 pFmt->wEffects &= ~PFE_TABLE;
1061 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1062 tableDef->numCellsInserted = 0;
1063 }
1064 break;
1065 }
1066 case rtfTab:
1067 case rtfPar:
1068 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1069 ME_DisplayItem *para;
1070 PARAFORMAT2 *pFmt;
1071 RTFFlushOutputBuffer(info);
1072 para = info->editor->pCursors[0].pPara;
1073 pFmt = para->member.para.pFmt;
1074 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1075 {
1076 /* rtfPar is treated like a space within a table. */
1077 info->rtfClass = rtfText;
1078 info->rtfMajor = ' ';
1079 }
1080 else if (info->rtfMinor == rtfPar && tableDef)
1081 tableDef->numCellsInserted = 0;
1082 }
1083 break;
1084 }
1085 }
1086
1087 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1088 const SIZEL* sz)
1089 {
1090 LPOLEOBJECT lpObject = NULL;
1091 LPSTORAGE lpStorage = NULL;
1092 LPOLECLIENTSITE lpClientSite = NULL;
1093 LPDATAOBJECT lpDataObject = NULL;
1094 LPOLECACHE lpOleCache = NULL;
1095 STGMEDIUM stgm;
1096 FORMATETC fm;
1097 CLSID clsid;
1098 BOOL ret = FALSE;
1099 DWORD conn;
1100
1101 if (hemf)
1102 {
1103 stgm.tymed = TYMED_ENHMF;
1104 stgm.u.hEnhMetaFile = hemf;
1105 fm.cfFormat = CF_ENHMETAFILE;
1106 }
1107 else if (hbmp)
1108 {
1109 stgm.tymed = TYMED_GDI;
1110 stgm.u.hBitmap = hbmp;
1111 fm.cfFormat = CF_BITMAP;
1112 }
1113 stgm.pUnkForRelease = NULL;
1114
1115 fm.ptd = NULL;
1116 fm.dwAspect = DVASPECT_CONTENT;
1117 fm.lindex = -1;
1118 fm.tymed = stgm.tymed;
1119
1120 if (!info->lpRichEditOle)
1121 {
1122 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1123 }
1124
1125 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1126 #if 0
1127 /* FIXME: enable it when rich-edit properly implements this method */
1128 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1129 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1130 #endif
1131 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1132 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1133 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1134 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1135 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1136 {
1137 REOBJECT reobject;
1138
1139 reobject.cbStruct = sizeof(reobject);
1140 reobject.cp = REO_CP_SELECTION;
1141 reobject.clsid = clsid;
1142 reobject.poleobj = lpObject;
1143 reobject.pstg = lpStorage;
1144 reobject.polesite = lpClientSite;
1145 /* convert from twips to .01 mm */
1146 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1147 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1148 reobject.dvaspect = DVASPECT_CONTENT;
1149 reobject.dwFlags = 0; /* FIXME */
1150 reobject.dwUser = 0;
1151
1152 ME_InsertOLEFromCursor(info->editor, &reobject, 0);
1153 ret = TRUE;
1154 }
1155
1156 if (lpObject) IOleObject_Release(lpObject);
1157 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1158 if (lpStorage) IStorage_Release(lpStorage);
1159 if (lpDataObject) IDataObject_Release(lpDataObject);
1160 if (lpOleCache) IOleCache_Release(lpOleCache);
1161
1162 return ret;
1163 }
1164
1165 static void ME_RTFReadPictGroup(RTF_Info *info)
1166 {
1167 SIZEL sz;
1168 BYTE* buffer = NULL;
1169 unsigned bufsz, bufidx;
1170 BOOL flip;
1171 BYTE val;
1172 METAFILEPICT mfp;
1173 HENHMETAFILE hemf;
1174 HBITMAP hbmp;
1175 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1176
1177 RTFGetToken (info);
1178 if (info->rtfClass == rtfEOF)
1179 return;
1180 mfp.mm = MM_TEXT;
1181 /* fetch picture type */
1182 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1183 {
1184 mfp.mm = info->rtfParam;
1185 gfx = gfx_metafile;
1186 }
1187 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1188 {
1189 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1190 gfx = gfx_dib;
1191 }
1192 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1193 {
1194 gfx = gfx_enhmetafile;
1195 }
1196 else
1197 {
1198 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1199 goto skip_group;
1200 }
1201 sz.cx = sz.cy = 0;
1202 /* fetch picture attributes */
1203 for (;;)
1204 {
1205 RTFGetToken (info);
1206 if (info->rtfClass == rtfEOF)
1207 return;
1208 if (info->rtfClass == rtfText)
1209 break;
1210 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1211 {
1212 ERR("Expected picture attribute (%d %d)\n",
1213 info->rtfClass, info->rtfMajor);
1214 goto skip_group;
1215 }
1216 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1217 {
1218 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1219 }
1220 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1221 {
1222 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1223 }
1224 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1225 sz.cx = info->rtfParam;
1226 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1227 sz.cy = info->rtfParam;
1228 else
1229 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1230 }
1231 /* fetch picture data */
1232 bufsz = 1024;
1233 bufidx = 0;
1234 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1235 val = info->rtfMajor;
1236 for (flip = TRUE;; flip = !flip)
1237 {
1238 RTFGetToken (info);
1239 if (info->rtfClass == rtfEOF)
1240 {
1241 HeapFree(GetProcessHeap(), 0, buffer);
1242 return; /* Warn ?? */
1243 }
1244 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1245 break;
1246 if (info->rtfClass != rtfText) goto skip_group;
1247 if (flip)
1248 {
1249 if (bufidx >= bufsz &&
1250 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1251 goto skip_group;
1252 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1253 }
1254 else
1255 val = info->rtfMajor;
1256 }
1257 if (flip) FIXME("wrong hex string\n");
1258
1259 switch (gfx)
1260 {
1261 case gfx_enhmetafile:
1262 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1263 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1264 break;
1265 case gfx_metafile:
1266 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1267 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1268 break;
1269 case gfx_dib:
1270 {
1271 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1272 HDC hdc = GetDC(0);
1273 unsigned nc = bi->bmiHeader.biClrUsed;
1274
1275 /* not quite right, especially for bitfields type of compression */
1276 if (!nc && bi->bmiHeader.biBitCount <= 8)
1277 nc = 1 << bi->bmiHeader.biBitCount;
1278 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1279 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1280 bi, DIB_RGB_COLORS)))
1281 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1282 ReleaseDC(0, hdc);
1283 }
1284 break;
1285 default:
1286 break;
1287 }
1288 HeapFree(GetProcessHeap(), 0, buffer);
1289 RTFRouteToken (info); /* feed "}" back to router */
1290 return;
1291 skip_group:
1292 HeapFree(GetProcessHeap(), 0, buffer);
1293 RTFSkipGroup(info);
1294 RTFRouteToken(info); /* feed "}" back to router */
1295 }
1296
1297 /* for now, lookup the \result part and use it, whatever the object */
1298 static void ME_RTFReadObjectGroup(RTF_Info *info)
1299 {
1300 for (;;)
1301 {
1302 RTFGetToken (info);
1303 if (info->rtfClass == rtfEOF)
1304 return;
1305 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1306 break;
1307 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1308 {
1309 RTFGetToken (info);
1310 if (info->rtfClass == rtfEOF)
1311 return;
1312 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1313 {
1314 int level = 1;
1315
1316 while (RTFGetToken (info) != rtfEOF)
1317 {
1318 if (info->rtfClass == rtfGroup)
1319 {
1320 if (info->rtfMajor == rtfBeginGroup) level++;
1321 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1322 }
1323 RTFRouteToken(info);
1324 }
1325 }
1326 else RTFSkipGroup(info);
1327 continue;
1328 }
1329 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1330 {
1331 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1332 return;
1333 }
1334 }
1335 RTFRouteToken(info); /* feed "}" back to router */
1336 }
1337
1338 static void ME_RTFReadHook(RTF_Info *info)
1339 {
1340 switch(info->rtfClass)
1341 {
1342 case rtfGroup:
1343 switch(info->rtfMajor)
1344 {
1345 case rtfBeginGroup:
1346 if (info->stackTop < maxStack) {
1347 info->stack[info->stackTop].style = info->style;
1348 ME_AddRefStyle(info->style);
1349 info->stack[info->stackTop].codePage = info->codePage;
1350 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1351 }
1352 info->stackTop++;
1353 info->styleChanged = FALSE;
1354 break;
1355 case rtfEndGroup:
1356 {
1357 RTFFlushOutputBuffer(info);
1358 info->stackTop--;
1359 if (info->stackTop <= 0)
1360 info->rtfClass = rtfEOF;
1361 if (info->stackTop < 0)
1362 return;
1363
1364 ME_ReleaseStyle(info->style);
1365 info->style = info->stack[info->stackTop].style;
1366 info->codePage = info->stack[info->stackTop].codePage;
1367 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1368 break;
1369 }
1370 }
1371 break;
1372 }
1373 }
1374
1375 void
1376 ME_StreamInFill(ME_InStream *stream)
1377 {
1378 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1379 (BYTE *)stream->buffer,
1380 sizeof(stream->buffer),
1381 (LONG *)&stream->dwSize);
1382 stream->dwUsed = 0;
1383 }
1384
1385 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1386 {
1387 RTF_Info parser;
1388 ME_Style *style;
1389 int from, to, nUndoMode;
1390 int nEventMask = editor->nEventMask;
1391 ME_InStream inStream;
1392 BOOL invalidRTF = FALSE;
1393 ME_Cursor *selStart, *selEnd;
1394
1395 TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
1396 editor->nEventMask = 0;
1397
1398 ME_GetSelectionOfs(editor, &from, &to);
1399 if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
1400 {
1401 ME_GetSelection(editor, &selStart, &selEnd);
1402 style = ME_GetSelectionInsertStyle(editor);
1403
1404 ME_InternalDeleteText(editor, selStart, to - from, FALSE);
1405
1406 /* Don't insert text at the end of the table row */
1407 if (!editor->bEmulateVersion10) { /* v4.1 */
1408 ME_DisplayItem *para = editor->pCursors->pPara;
1409 if (para->member.para.nFlags & MEPF_ROWEND)
1410 {
1411 para = para->member.para.next_para;
1412 editor->pCursors[0].pPara = para;
1413 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1414 editor->pCursors[0].nOffset = 0;
1415 }
1416 if (para->member.para.nFlags & MEPF_ROWSTART)
1417 {
1418 para = para->member.para.next_para;
1419 editor->pCursors[0].pPara = para;
1420 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1421 editor->pCursors[0].nOffset = 0;
1422 }
1423 editor->pCursors[1] = editor->pCursors[0];
1424 } else { /* v1.0 - 3.0 */
1425 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1426 ME_IsInTable(editor->pCursors[0].pRun))
1427 return 0;
1428 }
1429 } else {
1430 style = editor->pBuffer->pDefaultStyle;
1431 ME_AddRefStyle(style);
1432 ME_SetSelection(editor, 0, 0);
1433 ME_InternalDeleteText(editor, &editor->pCursors[1],
1434 ME_GetTextLength(editor), FALSE);
1435 from = to = 0;
1436 ME_ClearTempStyle(editor);
1437 ME_SetDefaultParaFormat(editor->pCursors[0].pPara->member.para.pFmt);
1438 }
1439
1440
1441 /* Back up undo mode to a local variable */
1442 nUndoMode = editor->nUndoMode;
1443
1444 /* Only create an undo if SFF_SELECTION is set */
1445 if (!(format & SFF_SELECTION))
1446 editor->nUndoMode = umIgnore;
1447
1448 inStream.editstream = stream;
1449 inStream.editstream->dwError = 0;
1450 inStream.dwSize = 0;
1451 inStream.dwUsed = 0;
1452
1453 if (format & SF_RTF)
1454 {
1455 /* Check if it's really RTF, and if it is not, use plain text */
1456 ME_StreamInFill(&inStream);
1457 if (!inStream.editstream->dwError)
1458 {
1459 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1460 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1461 {
1462 invalidRTF = TRUE;
1463 inStream.editstream->dwError = -16;
1464 }
1465 }
1466 }
1467
1468 if (!invalidRTF && !inStream.editstream->dwError)
1469 {
1470 if (format & SF_RTF) {
1471 /* setup the RTF parser */
1472 memset(&parser, 0, sizeof parser);
1473 RTFSetEditStream(&parser, &inStream);
1474 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1475 parser.editor = editor;
1476 parser.style = style;
1477 WriterInit(&parser);
1478 RTFInit(&parser);
1479 RTFSetReadHook(&parser, ME_RTFReadHook);
1480 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1481 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1482 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1483 {
1484 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1485 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1486 }
1487 BeginFile(&parser);
1488
1489 /* do the parsing */
1490 RTFRead(&parser);
1491 RTFFlushOutputBuffer(&parser);
1492 if (!editor->bEmulateVersion10) { /* v4.1 */
1493 if (parser.tableDef && parser.tableDef->tableRowStart &&
1494 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1495 {
1496 /* Delete any incomplete table row at the end of the rich text. */
1497 int nOfs, nChars;
1498 ME_DisplayItem *pCell;
1499 ME_DisplayItem *para;
1500
1501 parser.rtfMinor = rtfRow;
1502 /* Complete the table row before deleting it.
1503 * By doing it this way we will have the current paragraph format set
1504 * properly to reflect that is not in the complete table, and undo items
1505 * will be added for this change to the current paragraph format. */
1506 if (parser.nestingLevel > 0)
1507 {
1508 while (parser.nestingLevel > 1)
1509 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1510 para = parser.tableDef->tableRowStart;
1511 ME_RTFSpecialCharHook(&parser);
1512 } else {
1513 para = parser.tableDef->tableRowStart;
1514 ME_RTFSpecialCharHook(&parser);
1515 assert(para->member.para.nFlags & MEPF_ROWEND);
1516 para = para->member.para.next_para;
1517 }
1518 pCell = para->member.para.pCell;
1519
1520 editor->pCursors[1].pPara = para;
1521 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1522 editor->pCursors[1].nOffset = 0;
1523 nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
1524 nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
1525 ME_InternalDeleteText(editor, &editor->pCursors[1], nChars, TRUE);
1526 if (parser.tableDef)
1527 parser.tableDef->tableRowStart = NULL;
1528 }
1529 }
1530 ME_CheckTablesForCorruption(editor);
1531 RTFDestroy(&parser);
1532 if (parser.lpRichEditOle)
1533 IRichEditOle_Release(parser.lpRichEditOle);
1534
1535 if (parser.stackTop > 0)
1536 {
1537 while (--parser.stackTop >= 0)
1538 {
1539 ME_ReleaseStyle(parser.style);
1540 parser.style = parser.stack[parser.stackTop].style;
1541 }
1542 if (!inStream.editstream->dwError)
1543 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1544 }
1545
1546 /* Remove last line break, as mandated by tests. This is not affected by
1547 CR/LF counters, since RTF streaming presents only \para tokens, which
1548 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1549 */
1550 if (stripLastCR) {
1551 int newto;
1552 ME_GetSelection(editor, &selStart, &selEnd);
1553 newto = ME_GetCursorOfs(selEnd);
1554 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1555 WCHAR lastchar[3] = {'\0', '\0'};
1556 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1557 ME_Cursor linebreakCursor = *selEnd;
1558
1559 ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize);
1560 ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, 0);
1561 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1562 ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
1563 }
1564 }
1565 }
1566
1567 style = parser.style;
1568 }
1569 else if (format & SF_TEXT)
1570 ME_StreamInText(editor, format, &inStream, style);
1571 else
1572 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1573 /* put the cursor at the top */
1574 if (!(format & SFF_SELECTION))
1575 ME_SetSelection(editor, 0, 0);
1576 }
1577
1578 /* Restore saved undo mode */
1579 editor->nUndoMode = nUndoMode;
1580
1581 /* even if we didn't add an undo, we need to commit anything on the stack */
1582 ME_CommitUndo(editor);
1583
1584 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1585 if (!(format & SFF_SELECTION))
1586 ME_EmptyUndoStack(editor);
1587
1588 ME_ReleaseStyle(style);
1589 editor->nEventMask = nEventMask;
1590 ME_UpdateRepaint(editor);
1591 if (!(format & SFF_SELECTION)) {
1592 ME_ClearTempStyle(editor);
1593 }
1594 ITextHost_TxShowCaret(editor->texthost, FALSE);
1595 ME_MoveCaret(editor);
1596 ITextHost_TxShowCaret(editor->texthost, TRUE);
1597 ME_SendSelChange(editor);
1598 ME_SendRequestResize(editor, FALSE);
1599
1600 return 0;
1601 }
1602
1603
1604 typedef struct tagME_RTFStringStreamStruct
1605 {
1606 char *string;
1607 int pos;
1608 int length;
1609 } ME_RTFStringStreamStruct;
1610
1611 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1612 {
1613 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1614 int count;
1615
1616 count = min(cb, pStruct->length - pStruct->pos);
1617 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1618 pStruct->pos += count;
1619 *pcb = count;
1620 return 0;
1621 }
1622
1623 static void
1624 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1625 {
1626 EDITSTREAM es;
1627 ME_RTFStringStreamStruct data;
1628
1629 data.string = string;
1630 data.length = strlen(string);
1631 data.pos = 0;
1632 es.dwCookie = (DWORD_PTR)&data;
1633 es.pfnCallback = ME_ReadFromRTFString;
1634 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1635 }
1636
1637
1638 static int
1639 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1640 {
1641 const int nLen = lstrlenW(text);
1642 const int nTextLen = ME_GetTextLength(editor);
1643 int nMin, nMax;
1644 ME_Cursor cursor;
1645 WCHAR wLastChar = ' ';
1646
1647 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1648 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1649
1650 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1651 FIXME("Flags 0x%08x not implemented\n",
1652 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1653
1654 nMin = chrg->cpMin;
1655 if (chrg->cpMax == -1)
1656 nMax = nTextLen;
1657 else
1658 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1659
1660 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1661 if (editor->bEmulateVersion10 && nMax == nTextLen)
1662 {
1663 flags |= FR_DOWN;
1664 }
1665
1666 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1667 if (editor->bEmulateVersion10 && nMax < nMin)
1668 {
1669 if (chrgText)
1670 {
1671 chrgText->cpMin = -1;
1672 chrgText->cpMax = -1;
1673 }
1674 return -1;
1675 }
1676
1677 /* when searching up, if cpMin < cpMax, then instead of searching
1678 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1679 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1680 * case, it is always bigger than cpMin.
1681 */
1682 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1683 {
1684 int nSwap = nMax;
1685
1686 nMax = nMin > nTextLen ? nTextLen : nMin;
1687 if (nMin < nSwap || chrg->cpMax == -1)
1688 nMin = 0;
1689 else
1690 nMin = nSwap;
1691 }
1692
1693 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1694 {
1695 if (chrgText)
1696 chrgText->cpMin = chrgText->cpMax = -1;
1697 return -1;
1698 }
1699
1700 if (flags & FR_DOWN) /* Forward search */
1701 {
1702 /* If possible, find the character before where the search starts */
1703 if ((flags & FR_WHOLEWORD) && nMin)
1704 {
1705 ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
1706 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1707 ME_MoveCursorChars(editor, &cursor, 1);
1708 } else {
1709 ME_CursorFromCharOfs(editor, nMin, &cursor);
1710 }
1711
1712 while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
1713 {
1714 ME_DisplayItem *pCurItem = cursor.pRun;
1715 int nCurStart = cursor.nOffset;
1716 int nMatched = 0;
1717
1718 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1719 {
1720 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1721 break;
1722
1723 nMatched++;
1724 if (nMatched == nLen)
1725 {
1726 ME_DisplayItem *pNextItem = pCurItem;
1727 int nNextStart = nCurStart;
1728 WCHAR wNextChar;
1729
1730 /* Check to see if next character is a whitespace */
1731 if (flags & FR_WHOLEWORD)
1732 {
1733 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1734 {
1735 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1736 nNextStart = -nMatched;
1737 }
1738
1739 if (pNextItem)
1740 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1741 else
1742 wNextChar = ' ';
1743
1744 if (isalnumW(wNextChar))
1745 break;
1746 }
1747
1748 cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
1749 if (chrgText)
1750 {
1751 chrgText->cpMin = cursor.nOffset;
1752 chrgText->cpMax = cursor.nOffset + nLen;
1753 }
1754 TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
1755 return cursor.nOffset;
1756 }
1757 if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
1758 {
1759 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1760 nCurStart = -nMatched;
1761 }
1762 }
1763 if (pCurItem)
1764 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1765 else
1766 wLastChar = ' ';
1767
1768 cursor.nOffset++;
1769 if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
1770 {
1771 ME_NextRun(&cursor.pPara, &cursor.pRun);
1772 cursor.nOffset = 0;
1773 }
1774 }
1775 }
1776 else /* Backward search */
1777 {
1778 /* If possible, find the character after where the search ends */
1779 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1780 {
1781 ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
1782 wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
1783 ME_MoveCursorChars(editor, &cursor, -1);
1784 } else {
1785 ME_CursorFromCharOfs(editor, nMax, &cursor);
1786 }
1787
1788 while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
1789 {
1790 ME_DisplayItem *pCurItem = cursor.pRun;
1791 ME_DisplayItem *pCurPara = cursor.pPara;
1792 int nCurEnd = cursor.nOffset;
1793 int nMatched = 0;
1794
1795 if (nCurEnd == 0)
1796 {
1797 ME_PrevRun(&pCurPara, &pCurItem);
1798 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1799 }
1800
1801 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1802 {
1803 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1804 break;
1805
1806 nMatched++;
1807 if (nMatched == nLen)
1808 {
1809 ME_DisplayItem *pPrevItem = pCurItem;
1810 int nPrevEnd = nCurEnd;
1811 WCHAR wPrevChar;
1812 int nStart;
1813
1814 /* Check to see if previous character is a whitespace */
1815 if (flags & FR_WHOLEWORD)
1816 {
1817 if (nPrevEnd - nMatched == 0)
1818 {
1819 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1820 if (pPrevItem)
1821 nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
1822 }
1823
1824 if (pPrevItem)
1825 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1826 else
1827 wPrevChar = ' ';
1828
1829 if (isalnumW(wPrevChar))
1830 break;
1831 }
1832
1833 nStart = pCurPara->member.para.nCharOfs
1834 + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1835 if (chrgText)
1836 {
1837 chrgText->cpMin = nStart;
1838 chrgText->cpMax = nStart + nLen;
1839 }
1840 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1841 return nStart;
1842 }
1843 if (nCurEnd - nMatched == 0)
1844 {
1845 ME_PrevRun(&pCurPara, &pCurItem);
1846 /* Don't care about pCurItem becoming NULL here; it's already taken
1847 * care of in the exterior loop condition */
1848 nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
1849 }
1850 }
1851 if (pCurItem)
1852 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1853 else
1854 wLastChar = ' ';
1855
1856 cursor.nOffset--;
1857 if (cursor.nOffset < 0)
1858 {
1859 ME_PrevRun(&cursor.pPara, &cursor.pRun);
1860 cursor.nOffset = cursor.pRun->member.run.strText->nLen;
1861 }
1862 }
1863 }
1864 TRACE("not found\n");
1865 if (chrgText)
1866 chrgText->cpMin = chrgText->cpMax = -1;
1867 return -1;
1868 }
1869
1870 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
1871 {
1872 int nChars;
1873 ME_Cursor start;
1874
1875 if (!ex->cb || !pText) return 0;
1876
1877 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1878 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1879
1880 if (ex->flags & GT_SELECTION)
1881 {
1882 int from, to;
1883 int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
1884 start = editor->pCursors[nStartCur];
1885 nChars = to - from;
1886 }
1887 else
1888 {
1889 ME_SetCursorToStart(editor, &start);
1890 nChars = INT_MAX;
1891 }
1892 if (ex->codepage == 1200)
1893 {
1894 return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
1895 &start, nChars, ex->flags & GT_USECRLF);
1896 }
1897 else
1898 {
1899 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1900 we can just take a bigger buffer? :)
1901 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
1902 occurs only in richedit 2.0 mode, in which line breaks have only one CR
1903 */
1904 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1905 DWORD buflen;
1906 LPWSTR buffer;
1907 LRESULT rc;
1908
1909 buflen = min(crlfmul * nChars, ex->cb - 1);
1910 buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
1911
1912 nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF);
1913 rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
1914 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
1915 if (rc) rc--; /* do not count 0 terminator */
1916
1917 heap_free(buffer);
1918 return rc;
1919 }
1920 }
1921
1922 static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
1923 const ME_Cursor *start, int nLen, BOOL unicode)
1924 {
1925 if (!strText) return 0;
1926 if (unicode) {
1927 return ME_GetTextW(editor, strText, INT_MAX, start, nLen, 0);
1928 } else {
1929 int nChars;
1930 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1931 if (!p) return 0;
1932 nChars = ME_GetTextW(editor, p, nLen, start, nLen, 0);
1933 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
1934 nLen+1, NULL, NULL);
1935 FREE_OBJ(p);
1936 return nChars;
1937 }
1938 }
1939
1940 typedef struct tagME_GlobalDestStruct
1941 {
1942 HGLOBAL hData;
1943 int nLength;
1944 } ME_GlobalDestStruct;
1945
1946 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1947 {
1948 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1949 int i;
1950 WORD *pSrc, *pDest;
1951
1952 cb = cb >> 1;
1953 pDest = (WORD *)lpBuff;
1954 pSrc = GlobalLock(pData->hData);
1955 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1956 pDest[i] = pSrc[pData->nLength+i];
1957 }
1958 pData->nLength += i;
1959 *pcb = 2*i;
1960 GlobalUnlock(pData->hData);
1961 return 0;
1962 }
1963
1964 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1965 {
1966 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1967 int i;
1968 BYTE *pSrc, *pDest;
1969
1970 pDest = lpBuff;
1971 pSrc = GlobalLock(pData->hData);
1972 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1973 pDest[i] = pSrc[pData->nLength+i];
1974 }
1975 pData->nLength += i;
1976 *pcb = i;
1977 GlobalUnlock(pData->hData);
1978 return 0;
1979 }
1980
1981 static BOOL ME_Paste(ME_TextEditor *editor)
1982 {
1983 DWORD dwFormat = 0;
1984 EDITSTREAM es;
1985 ME_GlobalDestStruct gds;
1986 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1987 UINT cf = 0;
1988
1989 if (IsClipboardFormatAvailable(nRTFFormat))
1990 cf = nRTFFormat, dwFormat = SF_RTF;
1991 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1992 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1993 else
1994 return FALSE;
1995
1996 if (!OpenClipboard(editor->hWnd))
1997 return FALSE;
1998 gds.hData = GetClipboardData(cf);
1999 gds.nLength = 0;
2000 es.dwCookie = (DWORD_PTR)&gds;
2001 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2002 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2003
2004 CloseClipboard();
2005 return TRUE;
2006 }
2007
2008 static BOOL ME_Copy(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
2009 {
2010 LPDATAOBJECT dataObj = NULL;
2011 HRESULT hr = S_OK;
2012
2013 if (editor->cPasswordMask)
2014 return FALSE; /* Copying or Cutting masked text isn't allowed */
2015
2016 if(editor->lpOleCallback)
2017 {
2018 CHARRANGE range;
2019 range.cpMin = ME_GetCursorOfs(start);
2020 range.cpMax = range.cpMin + nChars;
2021 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2022 }
2023 if(FAILED(hr) || !dataObj)
2024 hr = ME_GetDataObject(editor, start, nChars, &dataObj);
2025 if(SUCCEEDED(hr)) {
2026 hr = OleSetClipboard(dataObj);
2027 IDataObject_Release(dataObj);
2028 }
2029 return SUCCEEDED(hr) != 0;
2030 }
2031
2032 /* helper to send a msg filter notification */
2033 static BOOL
2034 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2035 {
2036 MSGFILTER msgf;
2037
2038 if (!editor->hWnd || !editor->hwndParent) return FALSE;
2039 msgf.nmhdr.hwndFrom = editor->hWnd;
2040 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2041 msgf.nmhdr.code = EN_MSGFILTER;
2042 msgf.msg = msg;
2043 msgf.wParam = *wParam;
2044 msgf.lParam = *lParam;
2045 if (SendMessageW(editor->hwndParent, WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2046 return FALSE;
2047 *wParam = msgf.wParam;
2048 *lParam = msgf.lParam;
2049 msgf.wParam = *wParam;
2050
2051 return TRUE;
2052 }
2053
2054 static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
2055 {
2056 ME_DisplayItem *startPara, *endPara;
2057 ME_DisplayItem *prev_para;
2058 ME_Cursor *from, *to;
2059 ME_Cursor start;
2060 int nChars;
2061
2062 if (!editor->AutoURLDetect_bEnable) return;
2063
2064 ME_GetSelection(editor, &from, &to);
2065
2066 /* Find paragraph previous to the one that contains start cursor */
2067 startPara = from->pPara;
2068 prev_para = startPara->member.para.prev_para;
2069 if (prev_para->type == diParagraph) startPara = prev_para;
2070
2071 /* Find paragraph that contains end cursor */
2072 endPara = to->pPara->member.para.next_para;
2073
2074 start.pPara = startPara;
2075 start.pRun = ME_FindItemFwd(startPara, diRun);
2076 start.nOffset = 0;
2077 nChars = endPara->member.para.nCharOfs - startPara->member.para.nCharOfs;
2078
2079 ME_UpdateLinkAttribute(editor, &start, nChars);
2080 }
2081
2082 static BOOL
2083 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2084 {
2085 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2086 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2087
2088 if (editor->bMouseCaptured)
2089 return FALSE;
2090 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2091 editor->nSelectionType = stPosition;
2092
2093 switch (nKey)
2094 {
2095 case VK_LEFT:
2096 case VK_RIGHT:
2097 case VK_HOME:
2098 case VK_END:
2099 editor->nUDArrowX = -1;
2100 /* fall through */
2101 case VK_UP:
2102 case VK_DOWN:
2103 case VK_PRIOR:
2104 case VK_NEXT:
2105 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2106 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2107 return TRUE;
2108 case VK_BACK:
2109 case VK_DELETE:
2110 editor->nUDArrowX = -1;
2111 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2112 if (editor->styleFlags & ES_READONLY)
2113 return FALSE;
2114 if (ME_IsSelection(editor))
2115 {
2116 ME_DeleteSelection(editor);
2117 ME_CommitUndo(editor);
2118 }
2119 else if (nKey == VK_DELETE)
2120 {
2121 /* Delete stops group typing.
2122 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2123 ME_DeleteTextAtCursor(editor, 1, 1);
2124 ME_CommitUndo(editor);
2125 }
2126 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2127 {
2128 BOOL bDeletionSucceeded;
2129 /* Backspace can be grouped for a single undo */
2130 ME_ContinueCoalescingTransaction(editor);
2131 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2132 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2133 /* Deletion was prevented so the cursor is moved back to where it was.
2134 * (e.g. this happens when trying to delete cell boundaries)
2135 */
2136 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2137 }
2138 ME_CommitCoalescingUndo(editor);
2139 }
2140 else
2141 return TRUE;
2142 ME_MoveCursorFromTableRowStartParagraph(editor);
2143 ME_UpdateSelectionLinkAttribute(editor);
2144 ME_UpdateRepaint(editor);
2145 ME_SendRequestResize(editor, FALSE);
2146 return TRUE;
2147 case VK_RETURN:
2148 if (editor->bDialogMode)
2149 {
2150 if (ctrl_is_down)
2151 return TRUE;
2152
2153 if (!(editor->styleFlags & ES_WANTRETURN))
2154 {
2155 if (editor->hwndParent)
2156 {
2157 DWORD dw;
2158 dw = SendMessageW(editor->hwndParent, DM_GETDEFID, 0, 0);
2159 if (HIWORD(dw) == DC_HASDEFID)
2160 {
2161 HWND hwDefCtrl = GetDlgItem(editor->hwndParent, LOWORD(dw));
2162 if (hwDefCtrl)
2163 {
2164 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, (LPARAM)TRUE);
2165 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
2166 }
2167 }
2168 }
2169 return TRUE;
2170 }
2171 }
2172
2173 if (editor->styleFlags & ES_MULTILINE)
2174 {
2175 ME_Cursor cursor = editor->pCursors[0];
2176 ME_DisplayItem *para = cursor.pPara;
2177 int from, to;
2178 const WCHAR endl = '\r';
2179 ME_Style *style;
2180
2181 if (editor->styleFlags & ES_READONLY) {
2182 MessageBeep(MB_ICONERROR);
2183 return TRUE;
2184 }
2185
2186 ME_GetSelectionOfs(editor, &from, &to);
2187 if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2188 {
2189 if (!editor->bEmulateVersion10) { /* v4.1 */
2190 if (para->member.para.nFlags & MEPF_ROWEND) {
2191 /* Add a new table row after this row. */
2192 para = ME_AppendTableRow(editor, para);
2193 para = para->member.para.next_para;
2194 editor->pCursors[0].pPara = para;
2195 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2196 editor->pCursors[0].nOffset = 0;
2197 editor->pCursors[1] = editor->pCursors[0];
2198 ME_CommitUndo(editor);
2199 ME_CheckTablesForCorruption(editor);
2200 ME_UpdateRepaint(editor);
2201 return TRUE;
2202 }
2203 else if (para == editor->pCursors[1].pPara &&
2204 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
2205 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
2206 !para->member.para.prev_para->member.para.nCharOfs)
2207 {
2208 /* Insert a newline before the table. */
2209 para = para->member.para.prev_para;
2210 para->member.para.nFlags &= ~MEPF_ROWSTART;
2211 editor->pCursors[0].pPara = para;
2212 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2213 editor->pCursors[1] = editor->pCursors[0];
2214 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2215 editor->pCursors[0].pRun->member.run.style);
2216 para = editor->pBuffer->pFirst->member.para.next_para;
2217 ME_SetDefaultParaFormat(para->member.para.pFmt);
2218 para->member.para.nFlags = MEPF_REWRAP;
2219 editor->pCursors[0].pPara = para;
2220 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2221 editor->pCursors[1] = editor->pCursors[0];
2222 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
2223 ME_CommitCoalescingUndo(editor);
2224 ME_CheckTablesForCorruption(editor);
2225 ME_UpdateRepaint(editor);
2226 return TRUE;
2227 }
2228 } else { /* v1.0 - 3.0 */
2229 ME_DisplayItem *para = cursor.pPara;
2230 if (ME_IsInTable(para))
2231 {
2232 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
2233 {
2234 if (from == to) {
2235 ME_ContinueCoalescingTransaction(editor);
2236 para = ME_AppendTableRow(editor, para);
2237 editor->pCursors[0].pPara = para;
2238 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2239 editor->pCursors[0].nOffset = 0;
2240 editor->pCursors[1] = editor->pCursors[0];
2241 ME_CommitCoalescingUndo(editor);
2242 ME_UpdateRepaint(editor);
2243 return TRUE;
2244 }
2245 } else {
2246 ME_ContinueCoalescingTransaction(editor);
2247 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2248 !ME_IsInTable(para->member.para.prev_para))
2249 {
2250 /* Insert newline before table */
2251 cursor.pRun = ME_FindItemBack(para, diRun);
2252 if (cursor.pRun) {
2253 editor->pCursors[0].pRun = cursor.pRun;
2254 editor->pCursors[0].pPara = para->member.para.prev_para;
2255 }
2256 editor->pCursors[0].nOffset = 0;
2257 editor->pCursors[1] = editor->pCursors[0];
2258 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2259 editor->pCursors[0].pRun->member.run.style);
2260 } else {
2261 editor->pCursors[1] = editor->pCursors[0];
2262 para = ME_AppendTableRow(editor, para);
2263 editor->pCursors[0].pPara = para;
2264 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2265 editor->pCursors[0].nOffset = 0;
2266 editor->pCursors[1] = editor->pCursors[0];
2267 }
2268 ME_CommitCoalescingUndo(editor);
2269 ME_UpdateRepaint(editor);
2270 return TRUE;
2271 }
2272 }
2273 }
2274
2275 style = ME_GetInsertStyle(editor, 0);
2276 ME_SaveTempStyle(editor);
2277 ME_ContinueCoalescingTransaction(editor);
2278 if (shift_is_down)
2279 ME_InsertEndRowFromCursor(editor, 0);
2280 else
2281 ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
2282 ME_ReleaseStyle(style);
2283 ME_CommitCoalescingUndo(editor);
2284 SetCursor(NULL);
2285
2286 ME_UpdateSelectionLinkAttribute(editor);
2287 ME_UpdateRepaint(editor);
2288 }
2289 return TRUE;
2290 }
2291 break;
2292 case VK_ESCAPE:
2293 if (editor->bDialogMode && editor->hwndParent)
2294 PostMessageW(editor->hwndParent, WM_CLOSE, 0, 0);
2295 return TRUE;
2296 case VK_TAB:
2297 if (editor->bDialogMode && editor->hwndParent)
2298 SendMessageW(editor->hwndParent, WM_NEXTDLGCTL, shift_is_down, 0);
2299 return TRUE;
2300 case 'A':
2301 if (ctrl_is_down)
2302 {
2303 ME_SetSelection(editor, 0, -1);
2304 return TRUE;
2305 }
2306 break;
2307 case 'V':
2308 if (ctrl_is_down)
2309 return ME_Paste(editor);
2310 break;
2311 case 'C':
2312 case 'X':
2313 if (ctrl_is_down)
2314 {
2315 BOOL result;
2316 int nOfs, nChars;
2317 int nStartCur = ME_GetSelectionOfs(editor, &nOfs, &nChars);
2318 ME_Cursor *selStart = &editor->pCursors[nStartCur];
2319
2320 nChars -= nOfs;
2321 result = ME_Copy(editor, selStart, nChars);
2322 if (result && nKey == 'X')
2323 {
2324 ME_InternalDeleteText(editor, selStart, nChars, FALSE);
2325 ME_CommitUndo(editor);
2326 ME_UpdateRepaint(editor);
2327 }
2328 return result;
2329 }
2330 break;
2331 case 'Z':
2332 if (ctrl_is_down)
2333 {
2334 ME_Undo(editor);
2335 return TRUE;
2336 }
2337 break;
2338 case 'Y':
2339 if (ctrl_is_down)
2340 {
2341 ME_Redo(editor);
2342 return TRUE;
2343 }
2344 break;
2345
2346 default:
2347 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2348 editor->nUDArrowX = -1;
2349 if (ctrl_is_down)
2350 {
2351 if (nKey == 'W')
2352 {
2353 CHARFORMAT2W chf;
2354 char buf[2048];
2355 chf.cbSize = sizeof(chf);
2356
2357 ME_GetSelectionCharFormat(editor, &chf);
2358 ME_DumpStyleToBuf(&chf, buf);
2359 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2360 }
2361 if (nKey == 'Q')
2362 {
2363 ME_CheckCharOffsets(editor);
2364 }
2365 }
2366 }
2367 return FALSE;
2368 }
2369
2370 static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
2371 LPARAM flags, BOOL unicode)
2372 {
2373 WCHAR wstr;
2374
2375 if (editor->bMouseCaptured)
2376 return 0;
2377
2378 if (unicode)
2379 wstr = (WCHAR)charCode;
2380 else
2381 {
2382 CHAR charA = charCode;
2383 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2384 }
2385
2386 if (editor->styleFlags & ES_READONLY) {
2387 MessageBeep(MB_ICONERROR);
2388 return 0; /* FIXME really 0 ? */
2389 }
2390
2391 if ((unsigned)wstr >= ' ' || wstr == '\t')
2392 {
2393 ME_Cursor cursor = editor->pCursors[0];
2394 ME_DisplayItem *para = cursor.pPara;
2395 int from, to;
2396 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2397 ME_GetSelectionOfs(editor, &from, &to);
2398 if (wstr == '\t' &&
2399 /* v4.1 allows tabs to be inserted with ctrl key down */
2400 !(ctrl_is_down && !editor->bEmulateVersion10))
2401 {
2402 ME_DisplayItem *para;
2403 BOOL bSelectedRow = FALSE;
2404
2405 para = cursor.pPara;
2406 if (ME_IsSelection(editor) &&
2407 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2408 to == ME_GetCursorOfs(&editor->pCursors[0]) &&
2409 para->member.para.prev_para->type == diParagraph)
2410 {
2411 para = para->member.para.prev_para;
2412 bSelectedRow = TRUE;
2413 }
2414 if (ME_IsInTable(para))
2415 {
2416 ME_TabPressedInTable(editor, bSelectedRow);
2417 ME_CommitUndo(editor);
2418 return 0;
2419 }
2420 } else if (!editor->bEmulateVersion10) { /* v4.1 */
2421 if (para->member.para.nFlags & MEPF_ROWEND) {
2422 if (from == to) {
2423 para = para->member.para.next_para;
2424 if (para->member.para.nFlags & MEPF_ROWSTART)
2425 para = para->member.para.next_para;
2426 editor->pCursors[0].pPara = para;
2427 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2428 editor->pCursors[0].nOffset = 0;
2429 editor->pCursors[1] = editor->pCursors[0];
2430 }
2431 }
2432 } else { /* v1.0 - 3.0 */
2433 if (ME_IsInTable(cursor.pRun) &&
2434 cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
2435 from == to)
2436 {
2437 /* Text should not be inserted at the end of the table. */
2438 MessageBeep(-1);
2439 return 0;
2440 }
2441 }
2442 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2443 /* WM_CHAR is restricted to nTextLimit */
2444 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2445 {
2446 ME_Style *style = ME_GetInsertStyle(editor, 0);
2447 ME_SaveTempStyle(editor);
2448 ME_ContinueCoalescingTransaction(editor);
2449 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2450 ME_ReleaseStyle(style);
2451 ME_CommitCoalescingUndo(editor);
2452 ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
2453 }
2454
2455 ME_UpdateSelectionLinkAttribute(editor);
2456 ME_UpdateRepaint(editor);
2457 }
2458 return 0;
2459 }
2460
2461 /* Process the message and calculate the new click count.
2462 *
2463 * returns: The click count if it is mouse down event, else returns 0. */
2464 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2465 LPARAM lParam)
2466 {
2467 static int clickNum = 0;
2468 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2469 return 0;
2470
2471 if ((msg == WM_LBUTTONDBLCLK) ||
2472 (msg == WM_RBUTTONDBLCLK) ||
2473 (msg == WM_MBUTTONDBLCLK) ||
2474 (msg == WM_XBUTTONDBLCLK))
2475 {
2476 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2477 }
2478
2479 if ((msg == WM_LBUTTONDOWN) ||
2480 (msg == WM_RBUTTONDOWN) ||
2481 (msg == WM_MBUTTONDOWN) ||
2482 (msg == WM_XBUTTONDOWN))
2483 {
2484 static MSG prevClickMsg;
2485 MSG clickMsg;
2486 /* Compare the editor instead of the hwnd so that the this
2487 * can still be done for windowless richedit controls. */
2488 clickMsg.hwnd = (HWND)editor;
2489 clickMsg.message = msg;
2490 clickMsg.wParam = wParam;
2491 clickMsg.lParam = lParam;
2492 clickMsg.time = GetMessageTime();
2493 clickMsg.pt.x = (short)LOWORD(lParam);
2494 clickMsg.pt.y = (short)HIWORD(lParam);
2495 if ((clickNum != 0) &&
2496 (clickMsg.message == prevClickMsg.message) &&
2497 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2498 (clickMsg.wParam == prevClickMsg.wParam) &&
2499 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2500 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2501 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2502 {
2503 clickNum++;
2504 } else {
2505 clickNum = 1;
2506 }
2507 prevClickMsg = clickMsg;
2508 } else {
2509 return 0;
2510 }
2511 return clickNum;
2512 }
2513
2514 static BOOL ME_SetCursor(ME_TextEditor *editor)
2515 {
2516 ME_Cursor cursor;
2517 POINT pt;
2518 BOOL isExact;
2519 SCROLLBARINFO sbi;
2520 DWORD messagePos = GetMessagePos();
2521 pt.x = (short)LOWORD(messagePos);
2522 pt.y = (short)HIWORD(messagePos);
2523
2524 if (editor->hWnd)
2525 {
2526 sbi.cbSize = sizeof(sbi);
2527 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2528 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2529 PtInRect(&sbi.rcScrollBar, pt))
2530 {
2531 ITextHost_TxSetCursor(editor->texthost,
2532 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2533 return TRUE;
2534 }
2535 sbi.cbSize = sizeof(sbi);
2536 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2537 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2538 PtInRect(&sbi.rcScrollBar, pt))
2539 {
2540 ITextHost_TxSetCursor(editor->texthost,
2541 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2542 return TRUE;
2543 }
2544 }
2545 ITextHost_TxScreenToClient(editor->texthost, &pt);
2546
2547 if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
2548 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2549 return TRUE;
2550 }
2551 if (!editor->bEmulateVersion10 /* v4.1 */ &&
2552 pt.y < editor->rcFormat.top &&
2553 pt.x < editor->rcFormat.left)
2554 {
2555 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2556 return TRUE;
2557 }
2558 if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
2559 {
2560 if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
2561 ITextHost_TxSetCursor(editor->texthost,
2562 LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
2563 else /* v4.1 */
2564 ITextHost_TxSetCursor(editor->texthost,
2565 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2566 return TRUE;
2567 }
2568 if (pt.x < editor->rcFormat.left)
2569 {
2570 ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
2571 return TRUE;
2572 }
2573 ME_CharFromPos(editor, pt.x, pt.y, &cursor, &isExact);
2574 if (isExact)
2575 {
2576 ME_Run *run;
2577
2578 run = &cursor.pRun->member.run;
2579 if (run->style->fmt.dwMask & CFM_LINK &&
2580 run->style->fmt.dwEffects & CFE_LINK)
2581 {
2582 ITextHost_TxSetCursor(editor->texthost,
2583 LoadCursorW(NULL, (WCHAR*)IDC_HAND),
2584 FALSE);
2585 return TRUE;
2586 }
2587
2588 if (ME_IsSelection(editor))
2589 {
2590 int selStart, selEnd;
2591 int offset = ME_GetCursorOfs(&cursor);
2592
2593 ME_GetSelectionOfs(editor, &selStart, &selEnd);
2594 if (selStart <= offset && selEnd >= offset) {
2595 ITextHost_TxSetCursor(editor->texthost,
2596 LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
2597 FALSE);
2598 return TRUE;
2599 }
2600 }
2601 }
2602 ITextHost_TxSetCursor(editor->texthost,
2603 LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
2604 return TRUE;
2605 }
2606
2607 static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
2608 {
2609 ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
2610 editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
2611 editor->rcFormat.left += 1 + editor->selofs;
2612 editor->rcFormat.right -= 1;
2613 }
2614
2615 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2616 {
2617 CHARRANGE selrange;
2618 HMENU menu;
2619 int seltype = 0;
2620 if(!editor->lpOleCallback || !editor->hWnd)
2621 return FALSE;
2622 ME_GetSelectionOfs(editor, &selrange.cpMin, &selrange.cpMax);
2623 if(selrange.cpMin == selrange.cpMax)
2624 seltype |= SEL_EMPTY;
2625 else
2626 {
2627 /* FIXME: Handle objects */
2628 seltype |= SEL_TEXT;
2629 if(selrange.cpMax-selrange.cpMin > 1)
2630 seltype |= SEL_MULTICHAR;
2631 }
2632 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2633 {
2634 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, editor->hwndParent, NULL);
2635 DestroyMenu(menu);
2636 }
2637 return TRUE;
2638 }
2639
2640 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
2641 {
2642 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2643 int i;
2644 DWORD props;
2645 LONG selbarwidth;
2646
2647 ed->hWnd = NULL;
2648 ed->hwndParent = NULL;
2649 ed->texthost = texthost;
2650 ed->bEmulateVersion10 = bEmulateVersion10;
2651 ed->styleFlags = 0;
2652 ITextHost_TxGetPropertyBits(texthost,
2653 (TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
2654 TXTBIT_READONLY|TXTBIT_USEPASSWORD|
2655 TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
2656 TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
2657 TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
2658 &props);
2659 ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
2660 ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
2661 ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
2662 ed->pBuffer = ME_MakeText();
2663 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2664 ed->nAvailWidth = 0; /* wrap to client area */
2665 ME_MakeFirstParagraph(ed);
2666 /* The four cursors are for:
2667 * 0 - The position where the caret is shown
2668 * 1 - The anchored end of the selection (for normal selection)
2669 * 2 & 3 - The anchored start and end respectively for word, line,
2670 * or paragraph selection.
2671 */
2672 ed->nCursors = 4;
2673 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2674 ME_SetCursorToStart(ed, &ed->pCursors[0]);
2675 ed->pCursors[1] = ed->pCursors[0];
2676 ed->pCursors[2] = ed->pCursors[0];
2677 ed->pCursors[3] = ed->pCursors[1];
2678 ed->nLastTotalLength = ed->nTotalLength = 0;
2679 ed->nLastTotalWidth = ed->nTotalWidth = 0;
2680 ed->nUDArrowX = -1;
2681 ed->nSequence = 0;
2682 ed->rgbBackColor = -1;
2683 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2684 ed->bCaretAtEnd = FALSE;
2685 ed->nEventMask = 0;
2686 ed->nModifyStep = 0;
2687 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2688 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2689 ed->nUndoStackSize = 0;
2690 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2691 ed->nUndoMode = umAddToUndo;
2692 ed->nParagraphs = 1;
2693 ed->nLastSelStart = ed->nLastSelEnd = 0;
2694 ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
2695 ed->bHideSelection = FALSE;
2696 ed->pfnWordBreak = NULL;
2697 ed->lpOleCallback = NULL;
2698 ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2699 ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
2700 ed->AutoURLDetect_bEnable = FALSE;
2701 ed->bHaveFocus = FALSE;
2702 ed->bDialogMode = FALSE;
2703 ed->bMouseCaptured = FALSE;
2704 for (i=0; i<HFONT_CACHE_SIZE; i++)
2705 {
2706 ed->pFontCache[i].nRefs = 0;
2707 ed->pFontCache[i].nAge = 0;
2708 ed->pFontCache[i].hFont = NULL;
2709 }
2710
2711 ME_CheckCharOffsets(ed);
2712 ed->bDefaultFormatRect = TRUE;
2713 ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
2714 if (selbarwidth) {
2715 /* FIXME: Convert selbarwidth from HIMETRIC to pixels */
2716 ed->selofs = SELECTIONBAR_WIDTH;
2717 ed->styleFlags |= ES_SELECTIONBAR;
2718 } else {
2719 ed->selofs = 0;
2720 }
2721 ed->nSelectionType = stPosition;
2722
2723 ed->cPasswordMask = 0;
2724 if (props & TXTBIT_USEPASSWORD)
2725 ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
2726
2727 if (props & TXTBIT_AUTOWORDSEL)
2728 ed->styleFlags |= ECO_AUTOWORDSELECTION;
2729 if (props & TXTBIT_MULTILINE) {
2730 ed->styleFlags |= ES_MULTILINE;
2731 ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
2732 } else {
2733 ed->bWordWrap = FALSE;
2734 }
2735 if (props & TXTBIT_READONLY)
2736 ed->styleFlags |= ES_READONLY;
2737 if (!(props & TXTBIT_HIDESELECTION))
2738 ed->styleFlags |= ES_NOHIDESEL;
2739 if (props & TXTBIT_SAVESELECTION)
2740 ed->styleFlags |= ES_SAVESEL;
2741 if (props & TXTBIT_VERTICAL)
2742 ed->styleFlags |= ES_VERTICAL;
2743 if (props & TXTBIT_DISABLEDRAG)
2744 ed->styleFlags |= ES_NOOLEDRAGDROP;
2745
2746 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2747
2748 /* Default scrollbar information */
2749 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2750 ed->vert_si.nMin = 0;
2751 ed->vert_si.nMax = 0;
2752 ed->vert_si.nPage = 0;
2753 ed->vert_si.nPos = 0;
2754
2755 ed->horz_si.cbSize = sizeof(SCROLLINFO);
2756 ed->horz_si.nMin = 0;
2757 ed->horz_si.nMax = 0;
2758 ed->horz_si.nPage = 0;
2759 ed->horz_si.nPos = 0;
2760
2761 OleInitialize(NULL);
2762
2763 return ed;
2764 }
2765
2766 static void ME_DestroyEditor(ME_TextEditor *editor)
2767 {
2768 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2769 ME_DisplayItem *p = pFirst, *pNext = NULL;
2770 int i;
2771
2772 ME_ClearTempStyle(editor);
2773 ME_EmptyUndoStack(editor);
2774 while(p) {
2775 pNext = p->next;
2776 ME_DestroyDisplayItem(p);
2777 p = pNext;
2778 }
2779 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2780 for (i=0; i<HFONT_CACHE_SIZE; i++)
2781 {
2782 if (editor->pFontCache[i].hFont)
2783 DeleteObject(editor->pFontCache[i].hFont);
2784 }
2785 if (editor->rgbBackColor != -1)
2786 DeleteObject(editor->hbrBackground);
2787 if(editor->lpOleCallback)
2788 IUnknown_Release(editor->lpOleCallback);
2789 IUnknown_Release(editor->texthost);
2790 OleUninitialize();
2791
2792 FREE_OBJ(editor->pBuffer);
2793 FREE_OBJ(editor->pCursors);
2794
2795 FREE_OBJ(editor);
2796 }
2797
2798 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2799 {
2800 TRACE("\n");
2801 switch (fdwReason)
2802 {
2803 case DLL_PROCESS_ATTACH:
2804 DisableThreadLibraryCalls(hinstDLL);
2805 me_heap = HeapCreate (0, 0x10000, 0);
2806 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2807 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2808 LookupInit();
2809 break;
2810
2811 case DLL_PROCESS_DETACH:
2812 UnregisterClassW(RICHEDIT_CLASS20W, 0);
2813 UnregisterClassW(MSFTEDIT_CLASS, 0);
2814 UnregisterClassA(RICHEDIT_CLASS20A, 0);
2815 UnregisterClassA("RichEdit50A", 0);
2816 if (ME_ListBoxRegistered)
2817 UnregisterClassW(REListBox20W, 0);
2818 if (ME_ComboBoxRegistered)
2819 UnregisterClassW(REComboBox20W, 0);
2820 LookupCleanup();
2821 HeapDestroy (me_heap);
2822 me_heap = NULL;
2823 break;
2824 }
2825 return TRUE;
2826 }
2827
2828
2829 static const char * const edit_messages[] = {
2830 "EM_GETSEL",
2831 "EM_SETSEL",
2832 "EM_GETRECT",
2833 "EM_SETRECT",
2834 "EM_SETRECTNP",
2835 "EM_SCROLL",
2836 "EM_LINESCROLL",
2837 "EM_SCROLLCARET",
2838 "EM_GETMODIFY",
2839 "EM_SETMODIFY",
2840 "EM_GETLINECOUNT",
2841 "EM_LINEINDEX",
2842 "EM_SETHANDLE",
2843 "EM_GETHANDLE",
2844 "EM_GETTHUMB",
2845 "EM_UNKNOWN_BF",
2846 "EM_UNKNOWN_C0",
2847 "EM_LINELENGTH",
2848 "EM_REPLACESEL",
2849 "EM_UNKNOWN_C3",
2850 "EM_GETLINE",
2851 "EM_LIMITTEXT",
2852 "EM_CANUNDO",
2853 "EM_UNDO",
2854 "EM_FMTLINES",
2855 "EM_LINEFROMCHAR",
2856 "EM_UNKNOWN_CA",
2857 "EM_SETTABSTOPS",
2858 "EM_SETPASSWORDCHAR",
2859 "EM_EMPTYUNDOBUFFER",
2860 "EM_GETFIRSTVISIBLELINE",
2861 "EM_SETREADONLY",
2862 "EM_SETWORDBREAKPROC",
2863 "EM_GETWORDBREAKPROC",
2864 "EM_GETPASSWORDCHAR",
2865 "EM_SETMARGINS",
2866 "EM_GETMARGINS",
2867 "EM_GETLIMITTEXT",
2868 "EM_POSFROMCHAR",
2869 "EM_CHARFROMPOS",
2870 "EM_SETIMESTATUS",
2871 "EM_GETIMESTATUS"
2872 };
2873
2874 static const char * const richedit_messages[] = {
2875 "EM_CANPASTE",
2876 "EM_DISPLAYBAND",
2877 "EM_EXGETSEL",
2878 "EM_EXLIMITTEXT",
2879 "EM_EXLINEFROMCHAR",
2880 "EM_EXSETSEL",
2881 "EM_FINDTEXT",
2882 "EM_FORMATRANGE",
2883 "EM_GETCHARFORMAT",
2884 "EM_GETEVENTMASK",
2885 "EM_GETOLEINTERFACE",
2886 "EM_GETPARAFORMAT",
2887 "EM_GETSELTEXT",
2888 "EM_HIDESELECTION",
2889 "EM_PASTESPECIAL",
2890 "EM_REQUESTRESIZE",
2891 "EM_SELECTIONTYPE",
2892 "EM_SETBKGNDCOLOR",
2893 "EM_SETCHARFORMAT",
2894 "EM_SETEVENTMASK",
2895 "EM_SETOLECALLBACK",
2896 "EM_SETPARAFORMAT",
2897 "EM_SETTARGETDEVICE",
2898 "EM_STREAMIN",
2899 "EM_STREAMOUT",
2900 "EM_GETTEXTRANGE",
2901 "EM_FINDWORDBREAK",
2902 "EM_SETOPTIONS",
2903 "EM_GETOPTIONS",
2904 "EM_FINDTEXTEX",
2905 "EM_GETWORDBREAKPROCEX",
2906 "EM_SETWORDBREAKPROCEX",
2907 "EM_SETUNDOLIMIT",
2908 "EM_UNKNOWN_USER_83",
2909 "EM_REDO",
2910 "EM_CANREDO",
2911 "EM_GETUNDONAME",
2912 "EM_GETREDONAME",
2913 "EM_STOPGROUPTYPING",
2914 "EM_SETTEXTMODE",
2915 "EM_GETTEXTMODE",
2916 "EM_AUTOURLDETECT",
2917 "EM_GETAUTOURLDETECT",
2918 "EM_SETPALETTE",
2919 "EM_GETTEXTEX",
2920 "EM_GETTEXTLENGTHEX",
2921 "EM_SHOWSCROLLBAR",
2922 "EM_SETTEXTEX",
2923 "EM_UNKNOWN_USER_98",
2924 "EM_UNKNOWN_USER_99",
2925 "EM_SETPUNCTUATION",
2926 "EM_GETPUNCTUATION",
2927 "EM_SETWORDWRAPMODE",
2928 "EM_GETWORDWRAPMODE",
2929 "EM_SETIMECOLOR",
2930 "EM_GETIMECOLOR",
2931 "EM_SETIMEOPTIONS",
2932 "EM_GETIMEOPTIONS",
2933 "EM_CONVPOSITION",
2934 "EM_UNKNOWN_USER_109",
2935 "EM_UNKNOWN_USER_110",
2936 "EM_UNKNOWN_USER_111",
2937 "EM_UNKNOWN_USER_112",
2938 "EM_UNKNOWN_USER_113",
2939 "EM_UNKNOWN_USER_114",
2940 "EM_UNKNOWN_USER_115",
2941 "EM_UNKNOWN_USER_116",
2942 "EM_UNKNOWN_USER_117",
2943 "EM_UNKNOWN_USER_118",
2944 "EM_UNKNOWN_USER_119",
2945 "EM_SETLANGOPTIONS",
2946 "EM_GETLANGOPTIONS",
2947 "EM_GETIMECOMPMODE",
2948 "EM_FINDTEXTW",
2949 "EM_FINDTEXTEXW",
2950 "EM_RECONVERSION",
2951 "EM_SETIMEMODEBIAS",
2952 "EM_GETIMEMODEBIAS"
2953 };
2954
2955 static const char *
2956 get_msg_name(UINT msg)
2957 {
2958 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2959 return edit_messages[msg - EM_GETSEL];
2960 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2961 return richedit_messages[msg - EM_CANPASTE];
2962 return "";
2963 }
2964
2965 static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2966 {
2967 int x,y;
2968 BOOL isExact;
2969 ME_Cursor cursor; /* The start of the clicked text. */
2970
2971 ENLINK info;
2972 x = (short)LOWORD(lParam);
2973 y = (short)HIWORD(lParam);
2974 ME_CharFromPos(editor, x, y, &cursor, &isExact);
2975 if (!isExact) return;
2976
2977 if (cursor.pRun->member.run.style->fmt.dwMask & CFM_LINK &&
2978 cursor.pRun->member.run.style->fmt.dwEffects & CFE_LINK)
2979 { /* The clicked run has CFE_LINK set */
2980 info.nmhdr.hwndFrom = NULL;
2981 info.nmhdr.idFrom = 0;
2982 info.nmhdr.code = EN_LINK;
2983 info.msg = msg;
2984 info.wParam = wParam;
2985 info.lParam = lParam;
2986 cursor.nOffset = 0;
2987 info.chrg.cpMin = ME_GetCursorOfs(&cursor);
2988 info.chrg.cpMax = info.chrg.cpMin + cursor.pRun->member.run.strText->nLen;
2989 ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
2990 }
2991 }
2992
2993 #define UNSUPPORTED_MSG(e) \
2994 case e: \
2995 FIXME(#e ": stub\n"); \
2996 *phresult = S_FALSE; \
2997 return 0;
2998
2999 /* Handle messages for windowless and windoweded richedit controls.
3000 *
3001 * The LRESULT that is returned is a return value for window procs,
3002 * and the phresult parameter is the COM return code needed by the
3003 * text services interface. */
3004 LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
3005 LPARAM lParam, BOOL unicode, HRESULT* phresult)
3006 {
3007 *phresult = S_OK;
3008
3009 switch(msg) {
3010
3011 UNSUPPORTED_MSG(EM_DISPLAYBAND)
3012 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
3013 UNSUPPORTED_MSG(EM_FMTLINES)
3014 UNSUPPORTED_MSG(EM_FORMATRANGE)
3015 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
3016 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
3017 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
3018 UNSUPPORTED_MSG(EM_GETIMESTATUS)
3019 UNSUPPORTED_MSG(EM_SETIMESTATUS)
3020 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
3021 UNSUPPORTED_MSG(EM_GETREDONAME)
3022 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
3023 UNSUPPORTED_MSG(EM_GETUNDONAME)
3024 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
3025 UNSUPPORTED_MSG(EM_PASTESPECIAL)
3026 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
3027 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
3028 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
3029 UNSUPPORTED_MSG(EM_SETFONTSIZE)
3030 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
3031 UNSUPPORTED_MSG(EM_SETMARGINS)
3032 UNSUPPORTED_MSG(EM_SETPALETTE)
3033 UNSUPPORTED_MSG(EM_SETTABSTOPS)
3034 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
3035 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
3036
3037 /* Messages specific to Richedit controls */
3038
3039 case EM_STREAMIN:
3040 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
3041 case EM_STREAMOUT:
3042 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
3043 case WM_GETDLGCODE:
3044 {
3045 UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
3046 if (lParam)
3047 editor->bDialogMode = TRUE;
3048 if (editor->styleFlags & ES_MULTILINE)
3049 code |= DLGC_WANTMESSAGE;
3050 return code;
3051 }
3052 case EM_EMPTYUNDOBUFFER:
3053 ME_EmptyUndoStack(editor);
3054 return 0;
3055 case EM_GETSEL:
3056 {
3057 /* Note: wParam/lParam can be NULL */
3058 UINT from, to;
3059 PUINT pfrom = wParam ? (PUINT)wParam : &from;
3060 PUINT pto = lParam ? (PUINT)lParam : &to;
3061 ME_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
3062 if ((*pfrom|*pto) & 0xFFFF0000)
3063 return -1;
3064 return MAKELONG(*pfrom,*pto);
3065 }
3066 case EM_EXGETSEL:
3067 {
3068 CHARRANGE *pRange = (CHARRANGE *)lParam;
3069 ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
3070 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
3071 return 0;
3072 }
3073 case EM_SETUNDOLIMIT:
3074 {
3075 if ((int)wParam < 0)
3076 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3077 else
3078 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3079 /* Setting a max stack size keeps wine from getting killed
3080 for hogging memory. Windows allocates all this memory at once, so
3081 no program would realistically set a value above our maximum. */
3082 return editor->nUndoLimit;
3083 }
3084 case EM_CANUNDO:
3085 return editor->pUndoStack != NULL;
3086 case EM_CANREDO:
3087 return editor->pRedoStack != NULL;
3088 case WM_UNDO: /* FIXME: actually not the same */
3089 case EM_UNDO:
3090 return ME_Undo(editor);
3091 case EM_REDO:
3092 return ME_Redo(editor);
3093 case EM_GETOPTIONS:
3094 {
3095 /* these flags are equivalent to the ES_* counterparts */
3096 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3097 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3098 DWORD settings = editor->styleFlags & mask;
3099
3100 return settings;
3101 }
3102 case EM_SETOPTIONS:
3103 {
3104 /* these flags are equivalent to ES_* counterparts, except for
3105 * ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
3106 * but is still stored in editor->styleFlags. */
3107 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3108 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
3109 ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
3110 DWORD settings = mask & editor->styleFlags;
3111 DWORD oldSettings = settings;
3112 DWORD changedSettings;
3113
3114 switch(wParam)
3115 {
3116 case ECOOP_SET:
3117 settings = lParam;
3118 break;
3119 case ECOOP_OR:
3120 settings |= lParam;
3121 break;
3122 case ECOOP_AND:
3123 settings &= lParam;
3124 break;
3125 case ECOOP_XOR:
3126 settings ^= lParam;
3127 }
3128 changedSettings = oldSettings ^ settings;
3129
3130 if (changedSettings) {
3131 editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
3132
3133 if (changedSettings & ECO_SELECTIONBAR)
3134 {
3135 ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
3136 if (settings & ECO_SELECTIONBAR) {
3137 assert(!editor->selofs);
3138 editor->selofs = SELECTIONBAR_WIDTH;
3139 editor->rcFormat.left += editor->selofs;
3140 } else {
3141 editor->rcFormat.left -= editor->selofs;
3142 editor->selofs = 0;
3143 }
3144 ME_RewrapRepaint(editor);
3145 }
3146
3147 if (changedSettings & settings & ECO_VERTICAL)
3148 FIXME("ECO_VERTICAL not implemented yet!\n");
3149 if (changedSettings & settings & ECO_AUTOHSCROLL)
3150 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
3151 if (changedSettings & settings & ECO_AUTOVSCROLL)
3152 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
3153 if (changedSettings & settings & ECO_NOHIDESEL)
3154 FIXME("ECO_NOHIDESEL not implemented yet!\n");
3155 if (changedSettings & settings & ECO_WANTRETURN)
3156 FIXME("ECO_WANTRETURN not implemented yet!\n");
3157 if (changedSettings & settings & ECO_AUTOWORDSELECTION)
3158 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
3159 }
3160
3161 return settings;
3162 }
3163 case EM_SETSEL:
3164 {
3165 ME_InvalidateSelection(editor);
3166 ME_SetSelection(editor, wParam, lParam);
3167 ME_InvalidateSelection(editor);
3168 ITextHost_TxShowCaret(editor->texthost, FALSE);
3169 ME_ShowCaret(editor);
3170 ME_SendSelChange(editor);
3171 return 0;
3172 }
3173 case EM_SETSCROLLPOS:
3174 {
3175 POINT *point = (POINT *)lParam;
3176 ME_ScrollAbs(editor, point->x, point->y);
3177 return 0;
3178 }
3179 case EM_AUTOURLDETECT:
3180 {
3181 if (wParam==1 || wParam ==0)
3182 {
3183 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3184 return 0;
3185 }
3186 return E_INVALIDARG;
3187 }
3188 case EM_GETAUTOURLDETECT:
3189 {
3190 return editor->AutoURLDetect_bEnable;
3191 }
3192 case EM_EXSETSEL:
3193 {
3194 int end;
3195 CHARRANGE range = *(CHARRANGE *)lParam;
3196
3197 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
3198
3199 ME_InvalidateSelection(editor);
3200 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
3201 ME_InvalidateSelection(editor);
3202 ITextHost_TxShowCaret(editor->texthost, FALSE);
3203 ME_ShowCaret(editor);
3204 ME_SendSelChange(editor);
3205
3206 return end;
3207 }
3208 case EM_SHOWSCROLLBAR:
3209 {
3210 DWORD flags;
3211
3212 switch (wParam)
3213 {
3214 case SB_HORZ:
3215 flags = WS_HSCROLL;
3216 break;
3217 case SB_VERT:
3218 flags = WS_VSCROLL;
3219 break;
3220 case SB_BOTH:
3221 flags = WS_HSCROLL|WS_VSCROLL;
3222 break;
3223 default:
3224 return 0;
3225 }
3226
3227 if (lParam) {
3228 editor->styleFlags |= flags;
3229 if (flags & WS_HSCROLL)
3230 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
3231 editor->nTotalWidth > editor->sizeWindow.cx);
3232 if (flags & WS_VSCROLL)
3233 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
3234 editor->nTotalLength > editor->sizeWindow.cy);
3235 } else {
3236 editor->styleFlags &= ~flags;
3237 ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
3238 }
3239 return 0;
3240 }
3241 case EM_SETTEXTEX:
3242 {
3243 LPWSTR wszText;
3244 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3245 size_t len = 0;
3246 int from, to;
3247 ME_Style *style;
3248 BOOL bRtf, bUnicode, bSelection;
3249 int oldModify = editor->nModifyStep;
3250
3251 if (!pStruct) return 0;
3252
3253 /* If we detect ascii rtf at the start of the string,
3254 * we know it isn't unicode. */
3255 bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
3256 !strncmp((char *)lParam, "{\\urtf", 6)));
3257 bUnicode = !bRtf && pStruct->codepage == 1200;
3258
3259 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3260 bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3261 pStruct->flags, pStruct->codepage);
3262
3263 bSelection = (pStruct->flags & ST_SELECTION) != 0;
3264 if (bSelection) {
3265 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3266 style = ME_GetSelectionInsertStyle(editor);
3267 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
3268 } else {
3269 ME_Cursor start;
3270 ME_SetCursorToStart(editor, &start);
3271 ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
3272 style = editor->pBuffer->pDefaultStyle;
3273 }
3274
3275 if (bRtf) {
3276 ME_StreamInRTFString(editor, bSelection, (char *)lParam);
3277 if (bSelection) {
3278 /* FIXME: The length returned is doesn't include the rtf control
3279 * characters, only the actual text. */
3280 len = lParam ? strlen((char *)lParam) : 0;
3281 }
3282 } else {
3283 /* FIXME: make use of pStruct->codepage in the to unicode translation */
3284 wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
3285 len = wszText ? lstrlenW(wszText) : 0;
3286 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3287 ME_EndToUnicode(bUnicode, wszText);
3288 }
3289
3290 if (bSelection) {
3291 ME_ReleaseStyle(style);
3292 ME_UpdateSelectionLinkAttribute(editor);
3293 } else {
3294 ME_Cursor cursor;
3295 len = 1;
3296 ME_SetCursorToStart(editor, &cursor);
3297 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3298 }
3299 ME_CommitUndo(editor);
3300 if (!(pStruct->flags & ST_KEEPUNDO))
3301 {
3302 editor->nModifyStep = oldModify;
3303 ME_EmptyUndoStack(editor);
3304 }
3305 ME_UpdateRepaint(editor);
3306 return len;
3307 }
3308 case EM_SETBKGNDCOLOR:
3309 {
3310 LRESULT lColor;
3311 if (editor->rgbBackColor != -1) {
3312 DeleteObject(editor->hbrBackground);
3313 lColor = editor->rgbBackColor;
3314 }
3315 else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
3316
3317 if (wParam)
3318 {
3319 editor->rgbBackColor = -1;
3320 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
3321 }
3322 else
3323 {
3324 editor->rgbBackColor = lParam;
3325 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
3326 }
3327 ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
3328 ITextHost_TxViewChange(editor->texthost, TRUE);
3329 return lColor;
3330 }
3331 case EM_GETMODIFY:
3332 return editor->nModifyStep == 0 ? 0 : -1;
3333 case EM_SETMODIFY:
3334 {
3335 if (wParam)
3336 editor->nModifyStep = 1;
3337 else
3338 editor->nModifyStep = 0;
3339
3340 return 0;
3341 }
3342 case EM_SETREADONLY:
3343 {
3344 if (wParam)
3345 editor->styleFlags |= ES_READONLY;
3346 else
3347 editor->styleFlags &= ~ES_READONLY;
3348 return 0;
3349 }
3350 case EM_SETEVENTMASK:
3351 {
3352 DWORD nOldMask = editor->nEventMask;
3353
3354 editor->nEventMask = lParam;
3355 return nOldMask;
3356 }
3357 case EM_GETEVENTMASK:
3358 return editor->nEventMask;
3359 case EM_SETCHARFORMAT:
3360 {
3361 CHARFORMAT2W buf, *p;
3362 BOOL bRepaint = TRUE;
3363 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
3364 if (p == NULL) return 0;
3365 if (!wParam)
3366 ME_SetDefaultCharFormat(editor, p);
3367 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
3368 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
3369 return 0;
3370 } else if (wParam == SCF_ALL) {
3371 if (editor->mode & TM_PLAINTEXT)
3372 ME_SetDefaultCharFormat(editor, p);
3373 else {
3374 ME_Cursor start;
3375 ME_SetCursorToStart(editor, &start);
3376 ME_SetCharFormat(editor, &start, NULL, p);
3377 editor->nModifyStep = 1;
3378 }
3379 } else if (editor->mode & TM_PLAINTEXT) {
3380 return 0;
3381 } else {
3382 bRepaint = ME_IsSelection(editor);
3383 ME_SetSelectionCharFormat(editor, p);
3384 if (bRepaint) editor->nModifyStep = 1;
3385 }
3386 ME_CommitUndo(editor);
3387 if (bRepaint)
3388 {
3389 ME_WrapMarkedParagraphs(editor);
3390 ME_UpdateScrollBar(editor);
3391 ME_Repaint(editor);
3392 }
3393 return 1;
3394 }
3395 case EM_GETCHARFORMAT:
3396 {
3397 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3398 if (dst->cbSize != sizeof(CHARFORMATA) &&
3399 dst->cbSize != sizeof(CHARFORMATW) &&
3400 dst->cbSize != sizeof(CHARFORMAT2A) &&
3401 dst->cbSize != sizeof(CHARFORMAT2W))
3402 return 0;
3403 tmp.cbSize = sizeof(tmp);
3404 if (!wParam)
3405 ME_GetDefaultCharFormat(editor, &tmp);
3406 else
3407 ME_GetSelectionCharFormat(editor, &tmp);
3408 ME_CopyToCFAny(dst, &tmp);
3409 return tmp.dwMask;
3410 }
3411 case EM_SETPARAFORMAT:
3412 {
3413 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3414 ME_WrapMarkedParagraphs(editor);
3415 ME_UpdateScrollBar(editor);
3416 ME_Repaint(editor);
3417 ME_CommitUndo(editor);
3418 return result;
3419 }
3420 case EM_GETPARAFORMAT:
3421 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3422 return ((PARAFORMAT2 *)lParam)->dwMask;
3423 case EM_GETFIRSTVISIBLELINE:
3424 {
3425 ME_DisplayItem *p = editor->pBuffer->pFirst;
3426 int y = editor->vert_si.nPos;
3427 int ypara = 0;
3428 int count = 0;
3429 int ystart, yend;
3430 while(p) {
3431 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3432 if (p->type == diTextEnd)
3433 break;
3434 if (p->type == diParagraph) {
3435 ypara = p->member.para.pt.y;
3436 continue;
3437 }
3438 ystart = ypara + p->member.row.pt.y;
3439 yend = ystart + p->member.row.nHeight;
3440 if (y < yend) {
3441 break;
3442 }
3443 count++;
3444 }
3445 return count;
3446 }
3447 case EM_HIDESELECTION:
3448 {
3449 editor->bHideSelection = (wParam != 0);
3450 ME_InvalidateSelection(editor);
3451 return 0;
3452 }
3453 case EM_LINESCROLL:
3454 {
3455 if (!(editor->styleFlags & ES_MULTILINE))
3456 return FALSE;
3457 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3458 return TRUE;
3459 }
3460 case WM_CLEAR:
3461 {
3462 int from, to;
3463 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3464 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3465 ME_CommitUndo(editor);
3466 ME_UpdateRepaint(editor);
3467 return 0;
3468 }
3469 case EM_REPLACESEL:
3470 {
3471 int from, to, nStartCursor;
3472 ME_Style *style;
3473 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3474 size_t len = wszText ? lstrlenW(wszText) : 0;
3475 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3476
3477 nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3478 style = ME_GetSelectionInsertStyle(editor);
3479 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3480 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3481 ME_ReleaseStyle(style);
3482 /* drop temporary style if line end */
3483 /*
3484 * FIXME question: does abc\n mean: put abc,
3485 * clear temp style, put \n? (would require a change)
3486 */
3487 if (len>0 && wszText[len-1] == '\n')
3488 ME_ClearTempStyle(editor);
3489 ME_EndToUnicode(unicode, wszText);
3490 ME_CommitUndo(editor);
3491 ME_UpdateSelectionLinkAttribute(editor);
3492 if (!wParam)
3493 ME_EmptyUndoStack(editor);
3494 ME_UpdateRepaint(editor);
3495 return len;
3496 }
3497 case EM_SCROLLCARET:
3498 ME_EnsureVisible(editor, &editor->pCursors[0]);
3499 return 0;
3500 case WM_SETFONT:
3501 {
3502 LOGFONTW lf;
3503 CHARFORMAT2W fmt;
3504 HDC hDC;
3505 BOOL bRepaint = LOWORD(lParam);
3506 ME_Cursor start;
3507
3508 if (!wParam)
3509 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3510 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3511 hDC = ITextHost_TxGetDC(editor->texthost);
3512 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3513 ITextHost_TxReleaseDC(editor->texthost, hDC);
3514 ME_SetCursorToStart(editor, &start);
3515 ME_SetCharFormat(editor, &start, NULL, &fmt);
3516 ME_SetDefaultCharFormat(editor, &fmt);
3517
3518 ME_CommitUndo(editor);
3519 ME_MarkAllForWrapping(editor);
3520 ME_WrapMarkedParagraphs(editor);
3521 ME_UpdateScrollBar(editor);
3522 if (bRepaint)
3523 ME_Repaint(editor);
3524 return 0;
3525 }
3526 case WM_SETTEXT:
3527 {
3528 ME_Cursor cursor;
3529 ME_SetCursorToStart(editor, &cursor);
3530 ME_InternalDeleteText(editor, &cursor, ME_GetTextLength(editor), FALSE);
3531 if (lParam)
3532 {
3533 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3534 if (!strncmp((char *)lParam, "{\\rtf", 5) ||
3535 !strncmp((char *)lParam, "{\\urtf", 6))
3536 {
3537 /* Undocumented: WM_SETTEXT supports RTF text */
3538 ME_StreamInRTFString(editor, 0, (char *)lParam);
3539 }
3540 else
3541 {
3542 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3543 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3544 if (lstrlenW(wszText) > 0)
3545 {
3546 int len = -1;
3547
3548 /* uses default style! */
3549 if (!(editor->styleFlags & ES_MULTILINE))
3550 {
3551 WCHAR * p;
3552
3553 p = wszText;
3554 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3555 len = p - wszText;
3556 }
3557 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3558 }
3559 ME_EndToUnicode(unicode, wszText);
3560 }
3561 }
3562 else
3563 TRACE("WM_SETTEXT - NULL\n");
3564 ME_SetCursorToStart(editor, &cursor);
3565 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3566 ME_SetSelection(editor, 0, 0);
3567 editor->nModifyStep = 0;
3568 ME_CommitUndo(editor);
3569 ME_EmptyUndoStack(editor);
3570 ME_UpdateRepaint(editor);
3571 return 1;
3572 }
3573 case EM_CANPASTE:
3574 {
3575 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3576 if (IsClipboardFormatAvailable(nRTFFormat))
3577 return TRUE;
3578 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3579 return TRUE;
3580 return FALSE;
3581 }
3582 case WM_PASTE:
3583 ME_Paste(editor);
3584 return 0;
3585 case WM_CUT:
3586 case WM_COPY:
3587 {
3588 int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
3589 int nChars = nTo - nFrom;
3590 ME_Cursor *selStart = &editor->pCursors[nStartCur];
3591
3592 if (ME_Copy(editor, selStart, nChars) && msg == WM_CUT)
3593 {
3594 ME_InternalDeleteText(editor, selStart, nChars, FALSE);
3595 ME_CommitUndo(editor);
3596 ME_UpdateRepaint(editor);
3597 }
3598 return 0;
3599 }
3600 case WM_GETTEXTLENGTH:
3601 {
3602 GETTEXTLENGTHEX how;
3603
3604 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3605 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3606 how.codepage = unicode ? 1200 : CP_ACP;
3607 return ME_GetTextLengthEx(editor, &how);
3608 }
3609 case EM_GETTEXTLENGTHEX:
3610 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3611 case WM_GETTEXT:
3612 {
3613 GETTEXTEX ex;
3614 ex.cb = wParam * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3615 ex.flags = GT_USECRLF;
3616 ex.codepage = unicode ? 1200 : CP_ACP;
3617 ex.lpDefaultChar = NULL;
3618 ex.lpUsedDefChar = NULL;
3619 return ME_GetTextEx(editor, &ex, lParam);
3620 }
3621 case EM_GETTEXTEX:
3622 return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
3623 case EM_GETSELTEXT:
3624 {
3625 int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
3626 ME_Cursor *from = &editor->pCursors[nStartCur];
3627 return ME_GetTextRange(editor, (WCHAR *)lParam, from,
3628 nTo - nFrom, unicode);
3629 }
3630 case EM_GETSCROLLPOS:
3631 {
3632 POINT *point = (POINT *)lParam;
3633 point->x = editor->horz_si.nPos;
3634 point->y = editor->vert_si.nPos;
3635 /* 16-bit scaled value is returned as stored in scrollinfo */
3636 if (editor->horz_si.nMax > 0xffff)
3637 point->x = MulDiv(point->x, 0xffff, editor->horz_si.nMax);
3638 if (editor->vert_si.nMax > 0xffff)
3639 point->y = MulDiv(point->y, 0xffff, editor->vert_si.nMax);
3640 return 1;
3641 }
3642 case EM_GETTEXTRANGE:
3643 {
3644 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3645 ME_Cursor start;
3646 int nStart = rng->chrg.cpMin;
3647 int nEnd = rng->chrg.cpMax;
3648 int textlength = ME_GetTextLength(editor);
3649
3650 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d textlength=%d\n",
3651 rng->chrg.cpMin, rng->chrg.cpMax, unicode, textlength);
3652 if (nStart < 0) return 0;
3653 if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
3654 nEnd = textlength;
3655 if (nStart >= nEnd) return 0;
3656
3657 ME_CursorFromCharOfs(editor, nStart, &start);
3658 return ME_GetTextRange(editor, rng->lpstrText, &start, nEnd - nStart, unicode);
3659 }
3660 case EM_GETLINE:
3661 {
3662 ME_DisplayItem *run;
3663 const unsigned int nMaxChars = *(WORD *) lParam;
3664 unsigned int nCharsLeft = nMaxChars;
3665 char *dest = (char *) lParam;
3666 BOOL wroteNull = FALSE;
3667
3668 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3669 unicode ? "Unicode" : "Ansi");
3670
3671 run = ME_FindRowWithNumber(editor, wParam);
3672 if (run == NULL)
3673 return 0;
3674
3675 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3676 && run->type == diRun)
3677 {
3678 unsigned int nCopy;
3679 ME_String *strText;
3680
3681 strText = run->member.run.strText;
3682 nCopy = min(nCharsLeft, strText->nLen);
3683
3684 if (unicode)
3685 memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
3686 else
3687 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3688 nCharsLeft, NULL, NULL);
3689 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3690 nCharsLeft -= nCopy;
3691 }
3692
3693 /* append line termination, space allowing */
3694 if (nCharsLeft > 0)
3695 {
3696 if (unicode)
3697 *((WCHAR *)dest) = '\0';
3698 else
3699 *dest = '\0';
3700 nCharsLeft--;
3701 wroteNull = TRUE;
3702 }
3703
3704 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3705 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3706 }
3707 case EM_GETLINECOUNT:
3708 {
3709 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3710 int nRows = 0;
3711
3712 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3713
3714 while (item != editor->pBuffer->pLast)
3715 {
3716 assert(item->type == diParagraph);
3717 prev_para = ME_FindItemBack(item, diRun);
3718 if (prev_para) {
3719 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3720 }
3721 nRows += item->member.para.nRows;
3722 item = item->member.para.next_para;
3723 }
3724 last_para = ME_FindItemBack(item, diRun);
3725 assert(last_para);
3726 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3727 if (editor->bEmulateVersion10 && prev_para &&
3728 last_para->member.run.nCharOfs == 0 &&
3729 prev_para->member.run.strText->nLen == 1 &&
3730 prev_para->member.run.strText->szData[0] == '\r')
3731 {
3732 /* In 1.0 emulation, the last solitary \r at the very end of the text
3733 (if one exists) is NOT a line break.
3734 FIXME: this is an ugly hack. This should have a more regular model. */
3735 nRows--;
3736 }
3737
3738 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3739 return max(1, nRows);
3740 }
3741 case EM_LINEFROMCHAR:
3742 {
3743 if (wParam == -1)
3744 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
3745 else
3746 return ME_RowNumberFromCharOfs(editor, wParam);
3747 }
3748 case EM_EXLINEFROMCHAR:
3749 {
3750 if (lParam == -1)
3751 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
3752 else
3753 return ME_RowNumberFromCharOfs(editor, lParam);
3754 }
3755 case EM_LINEINDEX:
3756 {
3757 ME_DisplayItem *item, *para;
3758 int nCharOfs;
3759
3760 if (wParam == -1)
3761 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3762 else
3763 item = ME_FindRowWithNumber(editor, wParam);
3764 if (!item)
3765 return -1;
3766 para = ME_GetParagraph(item);
3767 item = ME_FindItemFwd(item, diRun);
3768 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3769 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3770 return nCharOfs;
3771 }
3772 case EM_LINELENGTH:
3773 {
3774 ME_DisplayItem *item, *item_end;
3775 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3776 ME_DisplayItem *para, *run;
3777
3778 if (wParam > ME_GetTextLength(editor))
3779 return 0;
3780 if (wParam == -1)
3781 {
3782 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3783 return 0;
3784 }
3785 ME_RunOfsFromCharOfs(editor, wParam, &para, &run, NULL);
3786 item = ME_RowStart(run);
3787 nThisLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item, diRun), 0);
3788 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3789 if (item_end->type == diStartRow) {
3790 nNextLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item_end, diRun), 0);
3791 } else {
3792 ME_DisplayItem *endRun = ME_FindItemBack(item_end, diRun);
3793 assert(endRun && endRun->member.run.nFlags & MERF_ENDPARA);
3794 nNextLineOfs = item_end->member.para.nCharOfs - endRun->member.run.strText->nLen;
3795 }
3796 nChars = nNextLineOfs - nThisLineOfs;
3797 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3798 return nChars;
3799 }
3800 case EM_EXLIMITTEXT:
3801 {
3802 if ((int)lParam < 0)
3803 return 0;
3804 if (lParam == 0)
3805 editor->nTextLimit = 65536;
3806 else
3807 editor->nTextLimit = (int) lParam;
3808 return 0;
3809 }
3810 case EM_LIMITTEXT:
3811 {
3812 if (wParam == 0)
3813 editor->nTextLimit = 65536;
3814 else
3815 editor->nTextLimit = (int) wParam;
3816 return 0;
3817 }
3818 case EM_GETLIMITTEXT:
3819 {
3820 return editor->nTextLimit;
3821 }
3822 case EM_FINDTEXT:
3823 {
3824 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3825 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3826 WCHAR *tmp;
3827 LRESULT r;
3828
3829 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3830 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3831 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3832 FREE_OBJ( tmp );
3833 return r;
3834 }
3835 case EM_FINDTEXTEX:
3836 {
3837 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3838 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3839 WCHAR *tmp;
3840 LRESULT r;
3841
3842 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3843 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3844 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3845 FREE_OBJ( tmp );
3846 return r;
3847 }
3848 case EM_FINDTEXTW:
3849 {
3850 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3851 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3852 }
3853 case EM_FINDTEXTEXW:
3854 {
3855 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3856 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3857 }
3858 case EM_GETZOOM:
3859 if (!wParam || !lParam)
3860 return FALSE;
3861 *(int *)wParam = editor->nZoomNumerator;
3862 *(int *)lParam = editor->nZoomDenominator;
3863 return TRUE;
3864 case EM_SETZOOM:
3865 return ME_SetZoom(editor, wParam, lParam);
3866 case EM_CHARFROMPOS:
3867 {
3868 ME_Cursor cursor;
3869 if (ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y,
3870 &cursor, NULL))
3871 return ME_GetCursorOfs(&cursor);
3872 else
3873 return -1;
3874 }
3875 case EM_POSFROMCHAR:
3876 {
3877 ME_DisplayItem *pPara, *pRun;
3878 int nCharOfs, nOffset, nLength;
3879 POINTL pt = {0,0};
3880
3881 nCharOfs = wParam;
3882 /* detect which API version we're dealing with */
3883 if (wParam >= 0x40000)
3884 nCharOfs = lParam;
3885 nLength = ME_GetTextLength(editor);
3886 nCharOfs = min(nCharOfs, nLength);
3887 nCharOfs = max(nCharOfs, 0);
3888
3889 ME_RunOfsFromCharOfs(editor, nCharOfs, &pPara, &pRun, &nOffset);
3890 assert(pRun->type == diRun);
3891 pt.y = pRun->member.run.pt.y;
3892 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3893 pt.y += pPara->member.para.pt.y + editor->rcFormat.top;
3894 pt.x += editor->rcFormat.left;
3895
3896 pt.x -= editor->horz_si.nPos;
3897 pt.y -= editor->vert_si.nPos;
3898
3899 if (wParam >= 0x40000) {
3900 *(POINTL *)wParam = pt;
3901 }
3902 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3903 }
3904 case WM_CREATE:
3905 {
3906 INT max;
3907
3908 ME_SetDefaultFormatRect(editor);
3909
3910 max = (editor->styleFlags & ES_DISABLENOSCROLL) ? 1 : 0;
3911 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_VSCROLL)
3912 ITextHost_TxSetScrollRange(editor->texthost, SB_VERT, 0, max, TRUE);
3913
3914 if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_HSCROLL)
3915 ITextHost_TxSetScrollRange(editor->texthost, SB_HORZ, 0, max, TRUE);
3916
3917 if (editor->styleFlags & ES_DISABLENOSCROLL)
3918 {
3919 if (editor->styleFlags & WS_VSCROLL)
3920 {
3921 ITextHost_TxEnableScrollBar(editor->texthost, SB_VERT, ESB_DISABLE_BOTH);
3922 ITextHost_TxShowScrollBar(editor->texthost, SB_VERT, TRUE);
3923 }
3924 if (editor->styleFlags & WS_HSCROLL)
3925 {
3926 ITextHost_TxEnableScrollBar(editor->texthost, SB_HORZ, ESB_DISABLE_BOTH);
3927 ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ, TRUE);
3928 }
3929 }
3930
3931 ME_CommitUndo(editor);
3932 ME_WrapMarkedParagraphs(editor);
3933 ME_MoveCaret(editor);
3934 return 0;
3935 }
3936 case WM_DESTROY:
3937 ME_DestroyEditor(editor);
3938 return 0;
3939 case WM_SETCURSOR:
3940 {
3941 return ME_SetCursor(editor);
3942 }
3943 case WM_LBUTTONDBLCLK:
3944 case WM_LBUTTONDOWN:
3945 {
3946 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3947 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3948 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3949 return 0;
3950 ITextHost_TxSetFocus(editor->texthost);
3951 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3952 ME_CalculateClickCount(editor, msg, wParam, lParam));
3953 ITextHost_TxSetCapture(editor->texthost, TRUE);
3954 editor->bMouseCaptured = TRUE;
3955 ME_LinkNotify(editor,msg,wParam,lParam);
3956 if (!ME_SetCursor(editor)) goto do_default;
3957 break;
3958 }
3959 case WM_MOUSEMOVE:
3960 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3961 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3962 return 0;
3963 if (editor->bMouseCaptured)
3964 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3965 ME_LinkNotify(editor,msg,wParam,lParam);
3966 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3967 if (editor->bMouseCaptured)
3968 ME_SetCursor(editor);
3969 break;
3970 case WM_LBUTTONUP:
3971 if (editor->bMouseCaptured) {
3972 ITextHost_TxSetCapture(editor->texthost, FALSE);
3973 editor->bMouseCaptured = FALSE;
3974 }
3975 if (editor->nSelectionType == stDocument)
3976 editor->nSelectionType = stPosition;
3977 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3978 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3979 return 0;
3980 else
3981 {
3982 ME_SetCursor(editor);
3983 ME_LinkNotify(editor,msg,wParam,lParam);
3984 }
3985 break;
3986 case WM_RBUTTONUP:
3987 case WM_RBUTTONDOWN:
3988 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3989 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3990 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3991 return 0;
3992 goto do_default;
3993 case WM_CONTEXTMENU:
3994 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3995 goto do_default;
3996 break;
3997 case WM_SETFOCUS:
3998 editor->bHaveFocus = TRUE;
3999 ME_ShowCaret(editor);
4000 ME_SendOldNotify(editor, EN_SETFOCUS);
4001 return 0;
4002 case WM_KILLFOCUS:
4003 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
4004 editor->bHaveFocus = FALSE;
4005 ME_HideCaret(editor);
4006 ME_SendOldNotify(editor, EN_KILLFOCUS);
4007 return 0;
4008 case WM_COMMAND:
4009 TRACE("editor wnd command = %d\n", LOWORD(wParam));
4010 return 0;
4011 case WM_KEYUP:
4012 if ((editor->nEventMask & ENM_KEYEVENTS) &&
4013 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4014 return 0;
4015 goto do_default;
4016 case WM_KEYDOWN:
4017 if ((editor->nEventMask & ENM_KEYEVENTS) &&
4018 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4019 return 0;
4020 if (ME_KeyDown(editor, LOWORD(wParam)))
4021 return 0;
4022 goto do_default;
4023 case WM_CHAR:
4024 return ME_Char(editor, wParam, lParam, unicode);
4025 case WM_UNICHAR:
4026 if (unicode)
4027 {
4028 if(wParam == UNICODE_NOCHAR) return TRUE;
4029 if(wParam <= 0x000fffff)
4030 {
4031 if(wParam > 0xffff) /* convert to surrogates */
4032 {
4033 wParam -= 0x10000;
4034 ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
4035 ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
4036 } else {
4037 ME_Char(editor, wParam, 0, TRUE);
4038 }
4039 }
4040 return 0;
4041 }
4042 break;
4043 case EM_STOPGROUPTYPING:
4044 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
4045 return 0;
4046 case WM_HSCROLL:
4047 {
4048 const int scrollUnit = 7;
4049
4050 switch(LOWORD(wParam))
4051 {
4052 case SB_LEFT:
4053 ME_ScrollAbs(editor, 0, 0);
4054 break;
4055 case SB_RIGHT:
4056 ME_ScrollAbs(editor,
4057 editor->horz_si.nMax - (int)editor->horz_si.nPage,
4058 editor->vert_si.nMax - (int)editor->vert_si.nPage);
4059 break;
4060 case SB_LINELEFT:
4061 ME_ScrollLeft(editor, scrollUnit);
4062 break;
4063 case SB_LINERIGHT:
4064 ME_ScrollRight(editor, scrollUnit);
4065 break;
4066 case SB_PAGELEFT:
4067 ME_ScrollLeft(editor, editor->sizeWindow.cx);
4068 break;
4069 case SB_PAGERIGHT:
4070 ME_ScrollRight(editor, editor->sizeWindow.cx);
4071 break;
4072 case SB_THUMBTRACK:
4073 case SB_THUMBPOSITION:
4074 {
4075 int pos = HIWORD(wParam);
4076 if (editor->horz_si.nMax > 0xffff)
4077 pos = MulDiv(pos, editor->horz_si.nMax, 0xffff);
4078 ME_HScrollAbs(editor, pos);
4079 break;
4080 }
4081 }
4082 break;
4083 }
4084 case EM_SCROLL: /* fall through */
4085 case WM_VSCROLL:
4086 {
4087 int origNPos;
4088 int lineHeight;
4089
4090 origNPos = editor->vert_si.nPos;
4091 lineHeight = 24;
4092
4093 if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
4094 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
4095 if (lineHeight <= 0) lineHeight = 24;
4096
4097 switch(LOWORD(wParam))
4098 {
4099 case SB_TOP:
4100 ME_ScrollAbs(editor, 0, 0);
4101 break;
4102 case SB_BOTTOM:
4103 ME_ScrollAbs(editor,
4104 editor->horz_si.nMax - (int)editor->horz_si.nPage,
4105 editor->vert_si.nMax - (int)editor->vert_si.nPage);
4106 break;
4107 case SB_LINEUP:
4108 ME_ScrollUp(editor,lineHeight);
4109 break;
4110 case SB_LINEDOWN:
4111 ME_ScrollDown(editor,lineHeight);
4112 break;
4113 case SB_PAGEUP:
4114 ME_ScrollUp(editor,editor->sizeWindow.cy);
4115 break;
4116 case SB_PAGEDOWN:
4117 ME_ScrollDown(editor,editor->sizeWindow.cy);
4118 break;
4119 case SB_THUMBTRACK:
4120 case SB_THUMBPOSITION:
4121 {
4122 int pos = HIWORD(wParam);
4123 if (editor->vert_si.nMax > 0xffff)
4124 pos = MulDiv(pos, editor->vert_si.nMax, 0xffff);
4125 ME_VScrollAbs(editor, pos);
4126 break;
4127 }
4128 }
4129 if (msg == EM_SCROLL)
4130 return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
4131 break;
4132 }
4133 case WM_MOUSEWHEEL:
4134 {
4135 int gcWheelDelta;
4136 UINT pulScrollLines;
4137 BOOL ctrl_is_down;
4138
4139 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
4140 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4141 return 0;
4142
4143 ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
4144
4145 gcWheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4146
4147 if (abs(gcWheelDelta) >= WHEEL_DELTA)
4148 {
4149 if (ctrl_is_down) {
4150 int numerator;
4151 if (!editor->nZoomNumerator || !editor->nZoomDenominator)
4152 {
4153 numerator = 100;
4154 } else {
4155 numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
4156 }
4157 numerator = numerator + (gcWheelDelta / WHEEL_DELTA) * 10;
4158 if (numerator >= 10 && numerator <= 500)
4159 ME_SetZoom(editor, numerator, 100);
4160 } else {
4161 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4162 /* FIXME follow the original */
4163 if (pulScrollLines)
4164 ME_ScrollDown(editor,pulScrollLines * (-gcWheelDelta / WHEEL_DELTA) * 8);
4165 }
4166 }
4167 break;
4168 }
4169 case EM_GETRECT:
4170 {
4171 *((RECT *)lParam) = editor->rcFormat;
4172 if (editor->bDefaultFormatRect)
4173 ((RECT *)lParam)->left -= editor->selofs;
4174 return 0;
4175 }
4176 case EM_SETRECT:
4177 case EM_SETRECTNP:
4178 {
4179 if (lParam)
4180 {
4181 int border = 0;
4182 RECT clientRect;
4183 RECT *rc = (RECT *)lParam;
4184
4185 border = editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
4186 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4187 if (wParam == 0)
4188 {
4189 editor->rcFormat.top = max(0, rc->top - border);
4190 editor->rcFormat.left = max(0, rc->left - border);
4191 editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
4192 editor->rcFormat.right = min(clientRect.right, rc->right + border);
4193 } else if (wParam == 1) {
4194 /* MSDN incorrectly says a wParam value of 1 causes the
4195 * lParam rect to be used as a relative offset,
4196 * however, the tests show it just prevents min/max bound
4197 * checking. */
4198 editor->rcFormat.top = rc->top - border;
4199 editor->rcFormat.left = rc->left - border;
4200 editor->rcFormat.bottom = rc->bottom;
4201 editor->rcFormat.right = rc->right + border;
4202 } else {
4203 return 0;
4204 }
4205 editor->bDefaultFormatRect = FALSE;
4206 }
4207 else
4208 {
4209 ME_SetDefaultFormatRect(editor);
4210 editor->bDefaultFormatRect = TRUE;
4211 }
4212 ME_MarkAllForWrapping(editor);
4213 ME_WrapMarkedParagraphs(editor);
4214 ME_UpdateScrollBar(editor);
4215 if (msg != EM_SETRECTNP)
4216 ME_Repaint(editor);
4217 return 0;
4218 }
4219 case EM_REQUESTRESIZE:
4220 ME_SendRequestResize(editor, TRUE);
4221 return 0;
4222 case WM_SETREDRAW:
4223 goto do_default;
4224 case WM_SIZE:
4225 {
4226 RECT clientRect;
4227
4228 ITextHost_TxGetClientRect(editor->texthost, &clientRect);
4229 if (editor->bDefaultFormatRect) {
4230 ME_SetDefaultFormatRect(editor);
4231 } else {
4232 editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
4233 editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
4234 }
4235 editor->prevClientRect = clientRect;
4236 ME_RewrapRepaint(editor);
4237 goto do_default;
4238 }
4239 /* IME messages to make richedit controls IME aware */
4240 case WM_IME_SETCONTEXT:
4241 case WM_IME_CONTROL:
4242 case WM_IME_SELECT:
4243 case WM_IME_COMPOSITIONFULL:
4244 return 0;
4245 case WM_IME_STARTCOMPOSITION:
4246 {
4247 editor->imeStartIndex=ME_GetCursorOfs(&editor->pCursors[0]);
4248 ME_DeleteSelection(editor);
4249 ME_CommitUndo(editor);
4250 ME_UpdateRepaint(editor);
4251 return 0;
4252 }
4253 case WM_IME_COMPOSITION:
4254 {
4255 HIMC hIMC;
4256
4257 ME_Style *style = ME_GetInsertStyle(editor, 0);
4258 hIMC = ITextHost_TxImmGetContext(editor->texthost);
4259 ME_DeleteSelection(editor);
4260 ME_CommitUndo(editor);
4261 ME_SaveTempStyle(editor);
4262 if (lParam & GCS_RESULTSTR)
4263 {
4264 LPWSTR lpCompStr = NULL;
4265 DWORD dwBufLen;
4266
4267 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4268 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4269 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
4270 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4271 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4272 }
4273 else if (lParam & GCS_COMPSTR)
4274 {
4275 LPWSTR lpCompStr = NULL;
4276 DWORD dwBufLen;
4277
4278 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4279 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4280 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4281 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4282
4283 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4284 ME_SetSelection(editor,editor->imeStartIndex,
4285 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4286 }
4287 ME_ReleaseStyle(style);
4288 ME_UpdateRepaint(editor);
4289 return 0;
4290 }
4291 case WM_IME_ENDCOMPOSITION:
4292 {
4293 ME_DeleteSelection(editor);
4294 editor->imeStartIndex=-1;
4295 return 0;
4296 }
4297 case EM_GETOLEINTERFACE:
4298 {
4299 LPVOID *ppvObj = (LPVOID*) lParam;
4300 return CreateIRichEditOle(editor, ppvObj);
4301 }
4302 case EM_GETPASSWORDCHAR:
4303 {
4304 return editor->cPasswordMask;
4305 }
4306 case EM_SETOLECALLBACK:
4307 if(editor->lpOleCallback)
4308 IUnknown_Release(editor->lpOleCallback);
4309 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4310 if(editor->lpOleCallback)
4311 IUnknown_AddRef(editor->lpOleCallback);
4312 return TRUE;
4313 case EM_GETWORDBREAKPROC:
4314 return (LRESULT)editor->pfnWordBreak;
4315 case EM_SETWORDBREAKPROC:
4316 {
4317 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4318
4319 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4320 return (LRESULT)pfnOld;
4321 }
4322 case EM_GETTEXTMODE:
4323 return editor->mode;
4324 case EM_SETTEXTMODE:
4325 {
4326 LRESULT ret;
4327 int mask = 0;
4328 int changes = 0;
4329 GETTEXTLENGTHEX how;
4330
4331 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
4332 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
4333 how.codepage = unicode ? 1200 : CP_ACP;
4334 ret = ME_GetTextLengthEx(editor, &how);
4335 if (!ret)
4336 {
4337 /*Check for valid wParam*/
4338 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4339 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4340 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4341 return 1;
4342 else
4343 {
4344 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4345 {
4346 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4347 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4348 }
4349 /*FIXME: Currently no support for undo level and code page options*/
4350 editor->mode = (editor->mode & (~mask)) | changes;
4351 return 0;
4352 }
4353 }
4354 return ret;
4355 }
4356 case EM_SETPASSWORDCHAR:
4357 {
4358 editor->cPasswordMask = wParam;
4359 ME_RewrapRepaint(editor);
4360 return 0;
4361 }
4362 case EM_SETTARGETDEVICE:
4363 if (wParam == 0)
4364 {
4365 BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
4366 if (editor->nAvailWidth || editor->bWordWrap != new)
4367 {
4368 editor->bWordWrap = new;
4369 editor->nAvailWidth = 0; /* wrap to client area */
4370 ME_RewrapRepaint(editor);
4371 }
4372 } else {
4373 int width = max(0, lParam);
4374 if ((editor->styleFlags & ES_MULTILINE) &&
4375 (!editor->bWordWrap || editor->nAvailWidth != width))
4376 {
4377 editor->nAvailWidth = width;
4378 editor->bWordWrap = TRUE;
4379 ME_RewrapRepaint(editor);
4380 }
4381 FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
4382 }
4383 return TRUE;
4384 default:
4385 do_default:
4386 *phresult = S_FALSE;
4387 break;
4388 }
4389 return 0L;
4390 }
4391
4392 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
4393 LPARAM lParam, BOOL unicode)
4394 {
4395 ME_TextEditor *editor;
4396 HRESULT hresult;
4397 LRESULT lresult = 0;
4398
4399 TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
4400 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
4401
4402 editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4403 if (!editor)
4404 {
4405 if (msg == WM_NCCREATE)
4406 {
4407 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4408 ITextHost *texthost;
4409
4410 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4411 texthost = ME_CreateTextHost(hWnd, pcs, FALSE);
4412 return texthost != NULL;
4413 }
4414 else if (msg != WM_NCDESTROY)
4415 {
4416 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
4417 return 0;
4418 }
4419 }
4420
4421 switch (msg)
4422 {
4423 case WM_PAINT:
4424 {
4425 HDC hDC;
4426 RECT rc;
4427 PAINTSTRUCT ps;
4428
4429 hDC = BeginPaint(editor->hWnd, &ps);
4430 /* Erase area outside of the formatting rectangle */
4431 if (ps.rcPaint.top < editor->rcFormat.top)
4432 {
4433 rc = ps.rcPaint;
4434 rc.bottom = editor->rcFormat.top;
4435 FillRect(hDC, &rc, editor->hbrBackground);
4436 ps.rcPaint.top = editor->rcFormat.top;
4437 }
4438 if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
4439 rc = ps.rcPaint;
4440 rc.top = editor->rcFormat.bottom;
4441 FillRect(hDC, &rc, editor->hbrBackground);
4442 ps.rcPaint.bottom = editor->rcFormat.bottom;
4443 }
4444 if (ps.rcPaint.left < editor->rcFormat.left) {
4445 rc = ps.rcPaint;
4446 rc.right = editor->rcFormat.left;
4447 FillRect(hDC, &rc, editor->hbrBackground);
4448 ps.rcPaint.left = editor->rcFormat.left;
4449 }
4450 if (ps.rcPaint.right > editor->rcFormat.right) {
4451 rc = ps.rcPaint;
4452 rc.left = editor->rcFormat.right;
4453 FillRect(hDC, &rc, editor->hbrBackground);
4454 ps.rcPaint.right = editor->rcFormat.right;
4455 }
4456
4457 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
4458 EndPaint(editor->hWnd, &ps);
4459 return 0;
4460 }
4461 case WM_ERASEBKGND:
4462 {
4463 HDC hDC = (HDC)wParam;
4464 RECT rc;
4465
4466 if (GetUpdateRect(editor->hWnd, &rc, TRUE))
4467 FillRect(hDC, &rc, editor->hbrBackground);
4468 return 1;
4469 }
4470 case EM_SETOPTIONS:
4471 {
4472 DWORD dwStyle;
4473 const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
4474 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
4475 ECO_SELECTIONBAR;
4476 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4477 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4478 dwStyle = (dwStyle & ~mask) | (lresult & mask);
4479 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4480 return lresult;
4481 }
4482 case EM_SETREADONLY:
4483 {
4484 DWORD dwStyle;
4485 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4486 dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
4487 dwStyle &= ~ES_READONLY;
4488 if (wParam)
4489 dwStyle |= ES_READONLY;
4490 SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
4491 return lresult;
4492 }
4493 default:
4494 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
4495 }
4496
4497 if (hresult == S_FALSE)
4498 lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
4499
4500 TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
4501 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
4502
4503 return lresult;
4504 }
4505
4506 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4507 {
4508 BOOL unicode = TRUE;
4509
4510 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4511 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4512 unicode = FALSE;
4513
4514 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4515 }
4516
4517 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4518 {
4519 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4520 }
4521
4522 /******************************************************************
4523 * RichEditANSIWndProc (RICHED20.10)
4524 */
4525 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4526 {
4527 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4528 }
4529
4530 /******************************************************************
4531 * RichEdit10ANSIWndProc (RICHED20.9)
4532 */
4533 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4534 {
4535 if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
4536 {
4537 ITextHost *texthost;
4538 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
4539
4540 TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
4541 texthost = ME_CreateTextHost(hWnd, pcs, TRUE);
4542 return texthost != NULL;
4543 }
4544 return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4545 }
4546
4547 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4548 {
4549 ITextHost_TxNotify(editor->texthost, nCode, NULL);
4550 }
4551
4552 /* Fill buffer with srcChars unicode characters from the start cursor.
4553 *
4554 * buffer: destination buffer
4555 * buflen: length of buffer in characters excluding the NULL terminator.
4556 * start: start of editor text to copy into buffer.
4557 * srcChars: Number of characters to use from the editor text.
4558 * bCRLF: if true, replaces all end of lines with \r\n pairs.
4559 *
4560 * returns the number of characters written excluding the NULL terminator.
4561 *
4562 * The written text is always NULL terminated.
4563 */
4564 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
4565 const ME_Cursor *start, int srcChars, BOOL bCRLF)
4566 {
4567 ME_DisplayItem *pRun, *pNextRun;
4568 const WCHAR *pStart = buffer;
4569 const WCHAR cr_lf[] = {'\r', '\n', 0};
4570 const WCHAR *str;
4571 int nLen;
4572
4573 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4574 if (editor->bEmulateVersion10) bCRLF = 0;
4575
4576 pRun = start->pRun;
4577 assert(pRun);
4578 pNextRun = ME_FindItemFwd(pRun, diRun);
4579
4580 nLen = pRun->member.run.strText->nLen - start->nOffset;
4581 str = pRun->member.run.strText->szData + start->nOffset;
4582
4583 /* No '\r' is appended to the last paragraph. */
4584 while (srcChars && buflen && pNextRun)
4585 {
4586 int nFlags = pRun->member.run.nFlags;
4587
4588 if (bCRLF && nFlags & MERF_ENDPARA && ~nFlags & MERF_ENDCELL)
4589 {
4590 if (buflen == 1) break;
4591 /* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
4592 * EM_GETTEXTEX, however, this is done for copying text which
4593 * also uses this function. */
4594 srcChars -= min(nLen, srcChars);
4595 nLen = 2;
4596 str = cr_lf;
4597 } else {
4598 nLen = min(nLen, srcChars);
4599 srcChars -= nLen;
4600 }
4601
4602 nLen = min(nLen, buflen);
4603 buflen -= nLen;
4604
4605 CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
4606
4607 buffer += nLen;
4608
4609 pRun = pNextRun;
4610 pNextRun = ME_FindItemFwd(pRun, diRun);
4611
4612 nLen = pRun->member.run.strText->nLen;
4613 str = pRun->member.run.strText->szData;
4614 }
4615 *buffer = 0;
4616 return buffer - pStart;
4617 }
4618
4619 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4620 {
4621 WNDCLASSW wcW;
4622 WNDCLASSA wcA;
4623
4624 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4625 wcW.lpfnWndProc = RichEditWndProcW;
4626 wcW.cbClsExtra = 0;
4627 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4628 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4629 wcW.hIcon = NULL;
4630 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4631 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4632 wcW.lpszMenuName = NULL;
4633
4634 if (is_version_nt())
4635 {
4636 wcW.lpszClassName = RICHEDIT_CLASS20W;
4637 if (!RegisterClassW(&wcW)) return FALSE;
4638 wcW.lpszClassName = MSFTEDIT_CLASS;
4639 if (!RegisterClassW(&wcW)) return FALSE;
4640 }
4641 else
4642 {
4643 /* WNDCLASSA/W have the same layout */
4644 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4645 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4646 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4647 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4648 }
4649
4650 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4651 wcA.lpfnWndProc = RichEditWndProcA;
4652 wcA.cbClsExtra = 0;
4653 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4654 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4655 wcA.hIcon = NULL;
4656 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4657 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4658 wcA.lpszMenuName = NULL;
4659 wcA.lpszClassName = RICHEDIT_CLASS20A;
4660 if (!RegisterClassA(&wcA)) return FALSE;
4661 wcA.lpszClassName = "RichEdit50A";
4662 if (!RegisterClassA(&wcA)) return FALSE;
4663
4664 return TRUE;
4665 }
4666
4667 static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4668 /* FIXME: Not implemented */
4669 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4670 hWnd, msg, get_msg_name(msg), wParam, lParam);
4671 return DefWindowProcW(hWnd, msg, wParam, lParam);
4672 }
4673
4674 static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4675 /* FIXME: Not implemented */
4676 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4677 hWnd, msg, get_msg_name(msg), wParam, lParam);
4678 return DefWindowProcW(hWnd, msg, wParam, lParam);
4679 }
4680
4681 /******************************************************************
4682 * REExtendedRegisterClass (RICHED20.8)
4683 *
4684 * FIXME undocumented
4685 * Need to check for errors and implement controls and callbacks
4686 */
4687 LRESULT WINAPI REExtendedRegisterClass(void)
4688 {
4689 WNDCLASSW wcW;
4690 UINT result;
4691
4692 FIXME("semi stub\n");
4693
4694 wcW.cbClsExtra = 0;
4695 wcW.cbWndExtra = 4;
4696 wcW.hInstance = NULL;
4697 wcW.hIcon = NULL;
4698 wcW.hCursor = NULL;
4699 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4700 wcW.lpszMenuName = NULL;
4701
4702 if (!ME_ListBoxRegistered)
4703 {
4704 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4705 wcW.lpfnWndProc = REListWndProc;
4706 wcW.lpszClassName = REListBox20W;
4707 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4708 }
4709
4710 if (!ME_ComboBoxRegistered)
4711 {
4712 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4713 wcW.lpfnWndProc = REComboWndProc;
4714 wcW.lpszClassName = REComboBox20W;
4715 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4716 }
4717
4718 result = 0;
4719 if (ME_ListBoxRegistered)
4720 result += 1;
4721 if (ME_ComboBoxRegistered)
4722 result += 2;
4723
4724 return result;
4725 }
4726
4727 static BOOL isurlspecial(WCHAR c)
4728 {
4729 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4730 return strchrW( special_chars, c ) != NULL;
4731 }
4732
4733 /**
4734 * This proc takes a selection, and scans it forward in order to select the span
4735 * of a possible URL candidate. A possible URL candidate must start with isalnum
4736 * or one of the following special characters: *|/\+%#@ and must consist entirely
4737 * of the characters allowed to start the URL, plus : (colon) which may occur
4738 * at most once, and not at either end.
4739 */
4740 static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
4741 const ME_Cursor *start,
4742 int nChars,
4743 ME_Cursor *candidate_min,
4744 ME_Cursor *candidate_max)
4745 {
4746 ME_Cursor cursor = *start;
4747 BOOL foundColon = FALSE;
4748 BOOL candidateStarted = FALSE;
4749 WCHAR lastAcceptedChar = '\0';
4750
4751 while (nChars > 0)
4752 {
4753 WCHAR *strStart = cursor.pRun->member.run.strText->szData;
4754 WCHAR *str = strStart + cursor.nOffset;
4755 int nLen = cursor.pRun->member.run.strText->nLen - cursor.nOffset;
4756 nChars -= nLen;
4757
4758 if (~cursor.pRun->member.run.nFlags & MERF_ENDPARA)
4759 {
4760 /* Find start of candidate */
4761 if (!candidateStarted)
4762 {
4763 while (nLen)
4764 {
4765 nLen--;
4766 if (isalnumW(*str) || isurlspecial(*str))
4767 {
4768 cursor.nOffset = str - strStart;
4769 *candidate_min = cursor;
4770 candidateStarted = TRUE;
4771 lastAcceptedChar = *str++;
4772 break;
4773 }
4774 str++;
4775 }
4776 }
4777
4778 /* Find end of candidate */
4779 if (candidateStarted) {
4780 while (nLen)
4781 {
4782 nLen--;
4783 if (*str == ':' && !foundColon) {
4784 foundColon = TRUE;
4785 } else if (!isalnumW(*str) && !isurlspecial(*str)) {
4786 cursor.nOffset = str - strStart;
4787 if (lastAcceptedChar == ':')
4788 ME_MoveCursorChars(editor, &cursor, -1);
4789 *candidate_max = cursor;
4790 return TRUE;
4791 }
4792 lastAcceptedChar = *str++;
4793 }
4794 }
4795 } else {
4796 /* End of paragraph: skip it if before candidate span, or terminates
4797 current active span */
4798 if (candidateStarted) {
4799 if (lastAcceptedChar == ':')
4800 ME_MoveCursorChars(editor, &cursor, -1);
4801 *candidate_max = cursor;
4802 return TRUE;
4803 }
4804 }
4805
4806 /* Reaching this point means no span was found, so get next span */
4807 if (!ME_NextRun(&cursor.pPara, &cursor.pRun)) {
4808 if (candidateStarted) {
4809 /* There are no further runs, so take end of text as end of candidate */
4810 cursor.nOffset = str - strStart;
4811 if (lastAcceptedChar == ':')
4812 ME_MoveCursorChars(editor, &cursor, -1);
4813 *candidate_max = cursor;
4814 return TRUE;
4815 }
4816 *candidate_max = *candidate_min = cursor;
4817 return FALSE;
4818 }
4819 cursor.nOffset = 0;
4820 }
4821
4822 if (candidateStarted) {
4823 /* There are no further runs, so take end of text as end of candidate */
4824 if (lastAcceptedChar == ':')
4825 ME_MoveCursorChars(editor, &cursor, -1);
4826 *candidate_max = cursor;
4827 return TRUE;
4828 }
4829 *candidate_max = *candidate_min = cursor;
4830 return FALSE;
4831 }
4832
4833 /**
4834 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4835 */
4836 static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
4837 {
4838 #define MAX_PREFIX_LEN 9
4839 struct prefix_s {
4840 const WCHAR text[MAX_PREFIX_LEN];
4841 int length;
4842 }prefixes[] = {
4843 {{'p','r','o','s','p','e','r','o',':'}, 9},
4844 {{'t','e','l','n','e','t',':'}, 7},
4845 {{'g','o','p','h','e','r',':'}, 7},
4846 {{'m','a','i','l','t','o',':'}, 7},
4847 {{'h','t','t','p','s',':'}, 6},
4848 {{'f','i','l','e',':'}, 5},
4849 {{'n','e','w','s',':'}, 5},
4850 {{'w','a','i','s',':'}, 5},
4851 {{'n','n','t','p',':'}, 5},
4852 {{'h','t','t','p',':'}, 5},
4853 {{'w','w','w','.'}, 4},
4854 {{'f','t','p',':'}, 4},
4855 };
4856 WCHAR bufferW[MAX_PREFIX_LEN + 1];
4857 unsigned int i;
4858
4859 ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, 0);
4860 for (i = 0; i < sizeof(prefixes) / sizeof(*prefixes); i++)
4861 {
4862 if (nChars < prefixes[i].length) continue;
4863 if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
4864 return TRUE;
4865 }
4866 return FALSE;
4867 #undef MAX_PREFIX_LEN
4868 }
4869
4870 /**
4871 * This proc walks through the indicated selection and evaluates whether each
4872 * section identified by ME_FindNextURLCandidate and in-between sections have
4873 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4874 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4875 *
4876 * Since this function can cause runs to be split, do not depend on the value
4877 * of the start cursor at the end of the function.
4878 *
4879 * nChars may be set to INT_MAX to update to the end of the text.
4880 *
4881 * Returns TRUE if at least one section was modified.
4882 */
4883 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
4884 {
4885 BOOL modified = FALSE;
4886 ME_Cursor startCur = *start;
4887
4888 if (!editor->AutoURLDetect_bEnable) return FALSE;
4889
4890 do
4891 {
4892 CHARFORMAT2W link;
4893 ME_Cursor candidateStart, candidateEnd;
4894
4895 if (ME_FindNextURLCandidate(editor, &startCur, nChars,
4896 &candidateStart, &candidateEnd))
4897 {
4898 /* Section before candidate is not an URL */
4899 int cMin = ME_GetCursorOfs(&candidateStart);
4900 int cMax = ME_GetCursorOfs(&candidateEnd);
4901
4902 if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
4903 candidateStart = candidateEnd;
4904 nChars -= cMax - ME_GetCursorOfs(&startCur);
4905 }
4906 else
4907 {
4908 /* No more candidates until end of selection */
4909 nChars = 0;
4910 }
4911
4912 if (startCur.pRun != candidateStart.pRun ||
4913 startCur.nOffset != candidateStart.nOffset)
4914 {
4915 /* CFE_LINK effect should be consistently unset */
4916 link.cbSize = sizeof(link);
4917 ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
4918 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4919 {
4920 /* CFE_LINK must be unset from this range */
4921 memset(&link, 0, sizeof(CHARFORMAT2W));
4922 link.cbSize = sizeof(link);
4923 link.dwMask = CFM_LINK;
4924 link.dwEffects = 0;
4925 ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
4926 /* Update candidateEnd since setting character formats may split
4927 * runs, which can cause a cursor to be at an invalid offset within
4928 * a split run. */
4929 while (candidateEnd.nOffset >= candidateEnd.pRun->member.run.strText->nLen)
4930 {
4931 candidateEnd.nOffset -= candidateEnd.pRun->member.run.strText->nLen;
4932 candidateEnd.pRun = ME_FindItemFwd(candidateEnd.pRun, diRun);
4933 }
4934 modified = TRUE;
4935 }
4936 }
4937 if (candidateStart.pRun != candidateEnd.pRun ||
4938 candidateStart.nOffset != candidateEnd.nOffset)
4939 {
4940 /* CFE_LINK effect should be consistently set */
4941 link.cbSize = sizeof(link);
4942 ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4943 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4944 {
4945 /* CFE_LINK must be set on this range */
4946 memset(&link, 0, sizeof(CHARFORMAT2W));
4947 link.cbSize = sizeof(link);
4948 link.dwMask = CFM_LINK;
4949 link.dwEffects = CFE_LINK;
4950 ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4951 modified = TRUE;
4952 }
4953 }
4954 startCur = candidateEnd;
4955 } while (nChars > 0);
4956 return modified;
4957 }
Windows API implementation