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push bf834a7eef2241618d351018da1587a7ae2466d1
[wine/hacks.git] / dlls / riched20 / editor.c
blob107dcea60e6b000cb0f165be0c6710cde9d2e62e
1 /*
2 * RichEdit - functions dealing with editor object
3 *
4 * Copyright 2004 by Krzysztof Foltman
5 * Copyright 2005 by Cihan Altinay
6 * Copyright 2005 by Phil Krylov
7 * Copyright 2008 Eric Pouech
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 API implementation status:
26
27 Messages (ANSI versions not done yet)
28 + EM_AUTOURLDETECT 2.0
29 + EM_CANPASTE
30 + EM_CANREDO 2.0
31 + EM_CANUNDO
32 + EM_CHARFROMPOS
33 - EM_DISPLAYBAND
34 + EM_EMPTYUNDOBUFFER
35 + EM_EXGETSEL
36 + EM_EXLIMITTEXT
37 + EM_EXLINEFROMCHAR
38 + EM_EXSETSEL
39 + EM_FINDTEXT (only FR_DOWN flag implemented)
40 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_FINDWORDBREAK
42 - EM_FMTLINES
43 - EM_FORMATRANGE
44 + EM_GETAUTOURLDETECT 2.0
45 - EM_GETBIDIOPTIONS 3.0
46 - EM_GETCHARFORMAT (partly done)
47 - EM_GETEDITSTYLE
48 + EM_GETEVENTMASK
49 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
50 - EM_GETIMECOLOR 1.0asian
51 - EM_GETIMECOMPMODE 2.0
52 - EM_GETIMEOPTIONS 1.0asian
53 - EM_GETIMESTATUS
54 - EM_GETLANGOPTIONS 2.0
55 + EM_GETLIMITTEXT
56 + EM_GETLINE
57 + EM_GETLINECOUNT returns number of rows, not of paragraphs
58 + EM_GETMODIFY
59 - EM_GETOLEINTERFACE
60 + EM_GETOPTIONS
61 + EM_GETPARAFORMAT
62 + EM_GETPASSWORDCHAR 2.0
63 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETRECT
65 - EM_GETREDONAME 2.0
66 + EM_GETSEL
67 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETSCROLLPOS 3.0 (only Y value valid)
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 - EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 - EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 - EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_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_PASTE
141 + WM_SETFONT
142 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
143 - WM_STYLECHANGING
144 - WM_STYLECHANGED (things like read-only flag)
145 + WM_UNICHAR
146
147 Notifications
148
149 * EN_CHANGE (sent from the wrong place)
150 - EN_CORRECTTEXT
151 - EN_DROPFILES
152 - EN_ERRSPACE
153 - EN_HSCROLL
154 - EN_IMECHANGE
155 + EN_KILLFOCUS
156 - EN_LINK
157 - EN_MAXTEXT
158 - EN_MSGFILTER
159 - EN_OLEOPFAILED
160 - EN_PROTECTED
161 + EN_REQUESTRESIZE
162 - EN_SAVECLIPBOARD
163 + EN_SELCHANGE
164 + EN_SETFOCUS
165 - EN_STOPNOUNDO
166 * EN_UPDATE (sent from the wrong place)
167 - EN_VSCROLL
168
169 Styles
170
171 - ES_AUTOHSCROLL
172 - ES_AUTOVSCROLL
173 - ES_CENTER
174 + ES_DISABLENOSCROLL (scrollbar is always visible)
175 - ES_EX_NOCALLOLEINIT
176 - ES_LEFT
177 - ES_MULTILINE (currently single line controls aren't supported)
178 - ES_NOIME
179 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
180 - ES_RIGHT
181 - ES_SAVESEL
182 - ES_SELFIME
183 - ES_SUNKEN
184 - ES_VERTICAL
185 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
186 - WS_SETFONT
187 - WS_HSCROLL
188 + WS_VSCROLL
189 */
190
191 /*
192 * RICHED20 TODO (incomplete):
193 *
194 * - messages/styles/notifications listed above
195 * - add remaining CHARFORMAT/PARAFORMAT fields
196 * - right/center align should strip spaces from the beginning
197 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
198 * - COM interface (looks like a major pain in the TODO list)
199 * - calculate heights of pictures (half-done)
200 * - horizontal scrolling (not even started)
201 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
202 * - find/replace
203 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
204 * - italic caret with italic fonts
205 * - IME
206 * - most notifications aren't sent at all (the most important ones are)
207 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
208 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
209 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
210 * - full justification
211 * - hyphenation
212 * - tables
213 * - ListBox & ComboBox not implemented
214 *
215 * Bugs that are probably fixed, but not so easy to verify:
216 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
217 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
218 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
219 * - caret shouldn't be displayed when selection isn't empty
220 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
221 * - undo for setting default format (done, might be buggy)
222 * - styles might be not released properly (looks like they work like charm, but who knows?
223 *
224 */
225
226 #include "editor.h"
227 #include "commdlg.h"
228 #include "winreg.h"
229 #define NO_SHLWAPI_STREAM
230 #include "shlwapi.h"
231 #include "rtf.h"
232 #include "imm.h"
233 #include "res.h"
234
235 #define STACK_SIZE_DEFAULT 100
236 #define STACK_SIZE_MAX 1000
237
238 #define TEXT_LIMIT_DEFAULT 32767
239
240 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
241
242 static BOOL ME_RegisterEditorClass(HINSTANCE);
243
244 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
245 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
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 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
424 }
425 break;
426 case rtfForeColor:
427 fmt.dwMask = CFM_COLOR;
428 fmt.dwEffects = 0;
429 if (info->rtfParam == 0)
430 fmt.dwEffects = CFE_AUTOCOLOR;
431 else if (info->rtfParam != rtfNoParam)
432 {
433 RTFColor *c = RTFGetColor(info, info->rtfParam);
434 if (c)
435 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
436 else
437 fmt.crTextColor = 0;
438 }
439 break;
440 case rtfFontNum:
441 if (info->rtfParam != rtfNoParam)
442 {
443 RTFFont *f = RTFGetFont(info, info->rtfParam);
444 if (f)
445 {
446 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
447 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
448 fmt.bCharSet = f->rtfFCharSet;
449 fmt.dwMask = CFM_FACE | CFM_CHARSET;
450 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
451 }
452 }
453 break;
454 case rtfFontSize:
455 fmt.dwMask = CFM_SIZE;
456 if (info->rtfParam != rtfNoParam)
457 fmt.yHeight = info->rtfParam*10;
458 break;
459 }
460 if (fmt.dwMask) {
461 ME_Style *style2;
462 RTFFlushOutputBuffer(info);
463 /* FIXME too slow ? how come ? */
464 style2 = ME_ApplyStyle(info->style, &fmt);
465 ME_ReleaseStyle(info->style);
466 info->style = style2;
467 info->styleChanged = TRUE;
468 }
469 }
470
471 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
472 the same tags mean different things in different contexts */
473 void ME_RTFParAttrHook(RTF_Info *info)
474 {
475 PARAFORMAT2 fmt;
476 fmt.cbSize = sizeof(fmt);
477 fmt.dwMask = 0;
478
479 switch(info->rtfMinor)
480 {
481 case rtfParDef: /* restores default paragraph attributes */
482 if (!info->editor->bEmulateVersion10) /* v4.1 */
483 info->borderType = RTFBorderParaLeft;
484 else /* v1.0 - 3.0 */
485 info->borderType = RTFBorderParaTop;
486 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
487 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
488 PFM_STARTINDENT;
489 /* TODO: numbering, shading */
490 fmt.wAlignment = PFA_LEFT;
491 fmt.cTabCount = 0;
492 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
493 fmt.wBorderWidth = fmt.wBorders = 0;
494 fmt.wBorderSpace = 0;
495 fmt.bLineSpacingRule = 0;
496 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
497 fmt.dyLineSpacing = 0;
498 if (!info->editor->bEmulateVersion10) /* v4.1 */
499 {
500 if (info->tableDef && info->tableDef->tableRowStart &&
501 info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
502 {
503 ME_Cursor cursor;
504 ME_DisplayItem *para;
505 /* We are just after a table row. */
506 RTFFlushOutputBuffer(info);
507 cursor = info->editor->pCursors[0];
508 para = ME_GetParagraph(cursor.pRun);
509 if (para == info->tableDef->tableRowStart->member.para.next_para
510 && !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
511 {
512 /* Since the table row end, no text has been inserted, and the \intbl
513 * control word has not be used. We can confirm that we are not in a
514 * table anymore.
515 */
516 info->tableDef->tableRowStart = NULL;
517 info->canInheritInTbl = FALSE;
518 }
519 }
520 } else { /* v1.0 - v3.0 */
521 fmt.dwMask |= PFM_TABLE;
522 fmt.wEffects &= ~PFE_TABLE;
523 }
524 break;
525 case rtfNestLevel:
526 if (!info->editor->bEmulateVersion10) /* v4.1 */
527 {
528 while (info->rtfParam > info->nestingLevel) {
529 RTFTable *tableDef = ALLOC_OBJ(RTFTable);
530 ZeroMemory(tableDef, sizeof(RTFTable));
531 tableDef->parent = info->tableDef;
532 info->tableDef = tableDef;
533
534 RTFFlushOutputBuffer(info);
535 if (tableDef->tableRowStart &&
536 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
537 {
538 ME_DisplayItem *para = tableDef->tableRowStart;
539 para = para->member.para.next_para;
540 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
541 tableDef->tableRowStart = para;
542 } else {
543 ME_Cursor cursor;
544 WCHAR endl = '\r';
545 cursor = info->editor->pCursors[0];
546 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
547 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
548 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
549 }
550
551 info->nestingLevel++;
552 }
553 info->canInheritInTbl = FALSE;
554 }
555 break;
556 case rtfInTable:
557 {
558 if (!info->editor->bEmulateVersion10) /* v4.1 */
559 {
560 if (info->nestingLevel < 1)
561 {
562 RTFTable *tableDef;
563 if (!info->tableDef)
564 {
565 info->tableDef = ALLOC_OBJ(RTFTable);
566 ZeroMemory(info->tableDef, sizeof(RTFTable));
567 }
568 tableDef = info->tableDef;
569 RTFFlushOutputBuffer(info);
570 if (tableDef->tableRowStart &&
571 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
572 {
573 ME_DisplayItem *para = tableDef->tableRowStart;
574 para = para->member.para.next_para;
575 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
576 tableDef->tableRowStart = para;
577 } else {
578 ME_Cursor cursor;
579 WCHAR endl = '\r';
580 cursor = info->editor->pCursors[0];
581 if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
582 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
583 tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
584 }
585 info->nestingLevel = 1;
586 info->canInheritInTbl = TRUE;
587 }
588 return;
589 } else { /* v1.0 - v3.0 */
590 fmt.dwMask |= PFM_TABLE;
591 fmt.wEffects |= PFE_TABLE;
592 }
593 break;
594 }
595 case rtfFirstIndent:
596 ME_GetSelectionParaFormat(info->editor, &fmt);
597 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
598 fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
599 fmt.dxOffset = -info->rtfParam;
600 break;
601 case rtfLeftIndent:
602 ME_GetSelectionParaFormat(info->editor, &fmt);
603 fmt.dwMask = PFM_STARTINDENT;
604 fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
605 break;
606 case rtfRightIndent:
607 fmt.dwMask = PFM_RIGHTINDENT;
608 fmt.dxRightIndent = info->rtfParam;
609 break;
610 case rtfQuadLeft:
611 case rtfQuadJust:
612 fmt.dwMask = PFM_ALIGNMENT;
613 fmt.wAlignment = PFA_LEFT;
614 break;
615 case rtfQuadRight:
616 fmt.dwMask = PFM_ALIGNMENT;
617 fmt.wAlignment = PFA_RIGHT;
618 break;
619 case rtfQuadCenter:
620 fmt.dwMask = PFM_ALIGNMENT;
621 fmt.wAlignment = PFA_CENTER;
622 break;
623 case rtfTabPos:
624 ME_GetSelectionParaFormat(info->editor, &fmt);
625 if (!(fmt.dwMask & PFM_TABSTOPS))
626 {
627 fmt.cTabCount = 0;
628 }
629 if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
630 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
631 fmt.dwMask = PFM_TABSTOPS;
632 break;
633 case rtfKeep:
634 fmt.dwMask = PFM_KEEP;
635 fmt.wEffects = PFE_KEEP;
636 break;
637 case rtfNoWidowControl:
638 fmt.dwMask = PFM_NOWIDOWCONTROL;
639 fmt.wEffects = PFE_NOWIDOWCONTROL;
640 break;
641 case rtfKeepNext:
642 fmt.dwMask = PFM_KEEPNEXT;
643 fmt.wEffects = PFE_KEEPNEXT;
644 break;
645 case rtfSpaceAfter:
646 fmt.dwMask = PFM_SPACEAFTER;
647 fmt.dySpaceAfter = info->rtfParam;
648 break;
649 case rtfSpaceBefore:
650 fmt.dwMask = PFM_SPACEBEFORE;
651 fmt.dySpaceBefore = info->rtfParam;
652 break;
653 case rtfSpaceBetween:
654 fmt.dwMask = PFM_LINESPACING;
655 if ((int)info->rtfParam > 0)
656 {
657 fmt.dyLineSpacing = info->rtfParam;
658 fmt.bLineSpacingRule = 3;
659 }
660 else
661 {
662 fmt.dyLineSpacing = info->rtfParam;
663 fmt.bLineSpacingRule = 4;
664 }
665 case rtfSpaceMultiply:
666 fmt.dwMask = PFM_LINESPACING;
667 fmt.dyLineSpacing = info->rtfParam * 20;
668 fmt.bLineSpacingRule = 5;
669 break;
670 case rtfParBullet:
671 fmt.dwMask = PFM_NUMBERING;
672 fmt.wNumbering = PFN_BULLET;
673 break;
674 case rtfParSimple:
675 fmt.dwMask = PFM_NUMBERING;
676 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
677 break;
678 case rtfParNumDecimal:
679 fmt.dwMask = PFM_NUMBERING;
680 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
681 break;
682 case rtfParNumIndent:
683 fmt.dwMask = PFM_NUMBERINGTAB;
684 fmt.wNumberingTab = info->rtfParam;
685 break;
686 case rtfParNumStartAt:
687 fmt.dwMask = PFM_NUMBERINGSTART;
688 fmt.wNumberingStart = info->rtfParam;
689 break;
690 case rtfBorderLeft:
691 info->borderType = RTFBorderParaLeft;
692 ME_GetSelectionParaFormat(info->editor, &fmt);
693 if (!(fmt.dwMask & PFM_BORDER))
694 {
695 fmt.wBorderSpace = 0;
696 fmt.wBorderWidth = 1;
697 fmt.wBorders = 0;
698 }
699 fmt.wBorders |= 1;
700 fmt.dwMask = PFM_BORDER;
701 break;
702 case rtfBorderRight:
703 info->borderType = RTFBorderParaRight;
704 ME_GetSelectionParaFormat(info->editor, &fmt);
705 if (!(fmt.dwMask & PFM_BORDER))
706 {
707 fmt.wBorderSpace = 0;
708 fmt.wBorderWidth = 1;
709 fmt.wBorders = 0;
710 }
711 fmt.wBorders |= 2;
712 fmt.dwMask = PFM_BORDER;
713 break;
714 case rtfBorderTop:
715 info->borderType = RTFBorderParaTop;
716 ME_GetSelectionParaFormat(info->editor, &fmt);
717 if (!(fmt.dwMask & PFM_BORDER))
718 {
719 fmt.wBorderSpace = 0;
720 fmt.wBorderWidth = 1;
721 fmt.wBorders = 0;
722 }
723 fmt.wBorders |= 4;
724 fmt.dwMask = PFM_BORDER;
725 break;
726 case rtfBorderBottom:
727 info->borderType = RTFBorderParaBottom;
728 ME_GetSelectionParaFormat(info->editor, &fmt);
729 if (!(fmt.dwMask & PFM_BORDER))
730 {
731 fmt.wBorderSpace = 0;
732 fmt.wBorderWidth = 1;
733 fmt.wBorders = 0;
734 }
735 fmt.wBorders |= 8;
736 fmt.dwMask = PFM_BORDER;
737 break;
738 case rtfBorderSingle:
739 ME_GetSelectionParaFormat(info->editor, &fmt);
740 /* we assume that borders have been created before (RTF spec) */
741 fmt.wBorders &= ~0x700;
742 fmt.wBorders |= 1 << 8;
743 fmt.dwMask = PFM_BORDER;
744 break;
745 case rtfBorderThick:
746 ME_GetSelectionParaFormat(info->editor, &fmt);
747 /* we assume that borders have been created before (RTF spec) */
748 fmt.wBorders &= ~0x700;
749 fmt.wBorders |= 2 << 8;
750 fmt.dwMask = PFM_BORDER;
751 break;
752 case rtfBorderShadow:
753 ME_GetSelectionParaFormat(info->editor, &fmt);
754 /* we assume that borders have been created before (RTF spec) */
755 fmt.wBorders &= ~0x700;
756 fmt.wBorders |= 10 << 8;
757 fmt.dwMask = PFM_BORDER;
758 break;
759 case rtfBorderDouble:
760 ME_GetSelectionParaFormat(info->editor, &fmt);
761 /* we assume that borders have been created before (RTF spec) */
762 fmt.wBorders &= ~0x700;
763 fmt.wBorders |= 7 << 8;
764 fmt.dwMask = PFM_BORDER;
765 break;
766 case rtfBorderDot:
767 ME_GetSelectionParaFormat(info->editor, &fmt);
768 /* we assume that borders have been created before (RTF spec) */
769 fmt.wBorders &= ~0x700;
770 fmt.wBorders |= 11 << 8;
771 fmt.dwMask = PFM_BORDER;
772 break;
773 case rtfBorderWidth:
774 {
775 int borderSide = info->borderType & RTFBorderSideMask;
776 RTFTable *tableDef = info->tableDef;
777 ME_GetSelectionParaFormat(info->editor, &fmt);
778 /* we assume that borders have been created before (RTF spec) */
779 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
780 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
781 {
782 RTFBorder *border;
783 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
784 break;
785 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
786 border->width = info->rtfParam;
787 break;
788 }
789 fmt.dwMask = PFM_BORDER;
790 break;
791 }
792 case rtfBorderSpace:
793 ME_GetSelectionParaFormat(info->editor, &fmt);
794 /* we assume that borders have been created before (RTF spec) */
795 fmt.wBorderSpace = info->rtfParam;
796 fmt.dwMask = PFM_BORDER;
797 break;
798 case rtfBorderColor:
799 {
800 RTFTable *tableDef = info->tableDef;
801 int borderSide = info->borderType & RTFBorderSideMask;
802 int borderType = info->borderType & RTFBorderTypeMask;
803 switch(borderType)
804 {
805 case RTFBorderTypePara:
806 if (!info->editor->bEmulateVersion10) /* v4.1 */
807 break;
808 /* v1.0 - 3.0 treat paragraph and row borders the same. */
809 case RTFBorderTypeRow:
810 if (tableDef) {
811 tableDef->border[borderSide].color = info->rtfParam;
812 }
813 break;
814 case RTFBorderTypeCell:
815 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
816 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
817 }
818 break;
819 }
820 break;
821 }
822 }
823 if (fmt.dwMask) {
824 RTFFlushOutputBuffer(info);
825 /* FIXME too slow ? how come ?*/
826 ME_SetSelectionParaFormat(info->editor, &fmt);
827 }
828 }
829
830 void ME_RTFTblAttrHook(RTF_Info *info)
831 {
832 switch (info->rtfMinor)
833 {
834 case rtfRowDef:
835 {
836 if (!info->editor->bEmulateVersion10) /* v4.1 */
837 info->borderType = 0; /* Not sure */
838 else /* v1.0 - 3.0 */
839 info->borderType = RTFBorderRowTop;
840 if (!info->tableDef) {
841 info->tableDef = ME_MakeTableDef(info->editor);
842 } else {
843 ME_InitTableDef(info->editor, info->tableDef);
844 }
845 break;
846 }
847 case rtfCellPos:
848 {
849 int cellNum;
850 if (!info->tableDef)
851 {
852 info->tableDef = ME_MakeTableDef(info->editor);
853 }
854 cellNum = info->tableDef->numCellsDefined;
855 if (cellNum >= MAX_TABLE_CELLS)
856 break;
857 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
858 if (cellNum < MAX_TAB_STOPS) {
859 /* Tab stops were used to store cell positions before v4.1 but v4.1
860 * still seems to set the tabstops without using them. */
861 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
862 PARAFORMAT2 *pFmt = para->member.para.pFmt;
863 pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
864 pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
865 }
866 info->tableDef->numCellsDefined++;
867 break;
868 }
869 case rtfRowBordTop:
870 info->borderType = RTFBorderRowTop;
871 break;
872 case rtfRowBordLeft:
873 info->borderType = RTFBorderRowLeft;
874 break;
875 case rtfRowBordBottom:
876 info->borderType = RTFBorderRowBottom;
877 break;
878 case rtfRowBordRight:
879 info->borderType = RTFBorderRowRight;
880 break;
881 case rtfCellBordTop:
882 info->borderType = RTFBorderCellTop;
883 break;
884 case rtfCellBordLeft:
885 info->borderType = RTFBorderCellLeft;
886 break;
887 case rtfCellBordBottom:
888 info->borderType = RTFBorderCellBottom;
889 break;
890 case rtfCellBordRight:
891 info->borderType = RTFBorderCellRight;
892 break;
893 case rtfRowGapH:
894 if (info->tableDef)
895 info->tableDef->gapH = info->rtfParam;
896 break;
897 case rtfRowLeftEdge:
898 if (info->tableDef)
899 info->tableDef->leftEdge = info->rtfParam;
900 break;
901 }
902 }
903
904 void ME_RTFSpecialCharHook(RTF_Info *info)
905 {
906 RTFTable *tableDef = info->tableDef;
907 switch (info->rtfMinor)
908 {
909 case rtfNestCell:
910 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
911 break;
912 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
913 case rtfCell:
914 if (!tableDef)
915 break;
916 RTFFlushOutputBuffer(info);
917 if (!info->editor->bEmulateVersion10) { /* v4.1 */
918 if (tableDef->tableRowStart)
919 {
920 if (!info->nestingLevel &&
921 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
922 {
923 ME_DisplayItem *para = tableDef->tableRowStart;
924 para = para->member.para.next_para;
925 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
926 tableDef->tableRowStart = para;
927 info->nestingLevel = 1;
928 }
929 ME_InsertTableCellFromCursor(info->editor);
930 }
931 } else { /* v1.0 - v3.0 */
932 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
933 PARAFORMAT2 *pFmt = para->member.para.pFmt;
934 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
935 tableDef->numCellsInserted < tableDef->numCellsDefined)
936 {
937 WCHAR tab = '\t';
938 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
939 tableDef->numCellsInserted++;
940 }
941 }
942 break;
943 case rtfNestRow:
944 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
945 break;
946 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
947 case rtfRow:
948 {
949 ME_DisplayItem *para, *cell, *run;
950 int i;
951
952 if (!tableDef)
953 break;
954 RTFFlushOutputBuffer(info);
955 if (!info->editor->bEmulateVersion10) { /* v4.1 */
956 if (!tableDef->tableRowStart)
957 break;
958 if (!info->nestingLevel &&
959 tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
960 {
961 para = tableDef->tableRowStart;
962 para = para->member.para.next_para;
963 para = ME_InsertTableRowStartAtParagraph(info->editor, para);
964 tableDef->tableRowStart = para;
965 info->nestingLevel++;
966 }
967 para = tableDef->tableRowStart;
968 cell = ME_FindItemFwd(para, diCell);
969 assert(cell && !cell->member.cell.prev_cell);
970 if (tableDef->numCellsDefined < 1)
971 {
972 /* 2000 twips appears to be the cell size that native richedit uses
973 * when no cell sizes are specified. */
974 const int defaultCellSize = 2000;
975 int nRightBoundary = defaultCellSize;
976 cell->member.cell.nRightBoundary = nRightBoundary;
977 while (cell->member.cell.next_cell) {
978 cell = cell->member.cell.next_cell;
979 nRightBoundary += defaultCellSize;
980 cell->member.cell.nRightBoundary = nRightBoundary;
981 }
982 para = ME_InsertTableCellFromCursor(info->editor);
983 cell = para->member.para.pCell;
984 cell->member.cell.nRightBoundary = nRightBoundary;
985 } else {
986 for (i = 0; i < tableDef->numCellsDefined; i++)
987 {
988 RTFCell *cellDef = &tableDef->cells[i];
989 cell->member.cell.nRightBoundary = cellDef->rightBoundary;
990 ME_ApplyBorderProperties(info, &cell->member.cell.border,
991 cellDef->border);
992 cell = cell->member.cell.next_cell;
993 if (!cell)
994 {
995 para = ME_InsertTableCellFromCursor(info->editor);
996 cell = para->member.para.pCell;
997 }
998 }
999 /* Cell for table row delimiter is empty */
1000 cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
1001 }
1002
1003 run = ME_FindItemFwd(cell, diRun);
1004 if (info->editor->pCursors[0].pRun != run ||
1005 info->editor->pCursors[0].nOffset)
1006 {
1007 int nOfs, nChars;
1008 /* Delete inserted cells that aren't defined. */
1009 info->editor->pCursors[1].pRun = run;
1010 info->editor->pCursors[1].nOffset = 0;
1011 nOfs = ME_GetCursorOfs(info->editor, 1);
1012 nChars = ME_GetCursorOfs(info->editor, 0) - nOfs;
1013 ME_InternalDeleteText(info->editor, nOfs, nChars, TRUE);
1014 }
1015
1016 para = ME_InsertTableRowEndFromCursor(info->editor);
1017 para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
1018 para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
1019 ME_ApplyBorderProperties(info, &para->member.para.border,
1020 tableDef->border);
1021 info->nestingLevel--;
1022 if (!info->nestingLevel)
1023 {
1024 if (info->canInheritInTbl) {
1025 tableDef->tableRowStart = para;
1026 } else {
1027 while (info->tableDef) {
1028 tableDef = info->tableDef;
1029 info->tableDef = tableDef->parent;
1030 heap_free(tableDef);
1031 }
1032 }
1033 } else {
1034 info->tableDef = tableDef->parent;
1035 heap_free(tableDef);
1036 }
1037 } else { /* v1.0 - v3.0 */
1038 WCHAR endl = '\r';
1039 ME_DisplayItem *para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1040 PARAFORMAT2 *pFmt = para->member.para.pFmt;
1041 pFmt->dxOffset = info->tableDef->gapH;
1042 pFmt->dxStartIndent = info->tableDef->leftEdge;
1043
1044 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1045 ME_ApplyBorderProperties(info, &para->member.para.border,
1046 tableDef->border);
1047 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1048 {
1049 WCHAR tab = '\t';
1050 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1051 tableDef->numCellsInserted++;
1052 }
1053 pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1054 if (!tableDef->numCellsDefined)
1055 pFmt->wEffects &= ~PFE_TABLE;
1056 ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
1057 tableDef->numCellsInserted = 0;
1058 }
1059 break;
1060 }
1061 case rtfTab:
1062 case rtfPar:
1063 if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
1064 ME_DisplayItem *para;
1065 PARAFORMAT2 *pFmt;
1066 RTFFlushOutputBuffer(info);
1067 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
1068 pFmt = para->member.para.pFmt;
1069 if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
1070 {
1071 /* rtfPar is treated like a space within a table. */
1072 info->rtfClass = rtfText;
1073 info->rtfMajor = ' ';
1074 }
1075 else if (info->rtfMinor == rtfPar && tableDef)
1076 tableDef->numCellsInserted = 0;
1077 }
1078 break;
1079 }
1080 }
1081
1082 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
1083 const SIZEL* sz)
1084 {
1085 LPOLEOBJECT lpObject = NULL;
1086 LPSTORAGE lpStorage = NULL;
1087 LPOLECLIENTSITE lpClientSite = NULL;
1088 LPDATAOBJECT lpDataObject = NULL;
1089 LPOLECACHE lpOleCache = NULL;
1090 STGMEDIUM stgm;
1091 FORMATETC fm;
1092 CLSID clsid;
1093 BOOL ret = FALSE;
1094 DWORD conn;
1095
1096 if (hemf)
1097 {
1098 stgm.tymed = TYMED_ENHMF;
1099 stgm.u.hEnhMetaFile = hemf;
1100 fm.cfFormat = CF_ENHMETAFILE;
1101 }
1102 else if (hbmp)
1103 {
1104 stgm.tymed = TYMED_GDI;
1105 stgm.u.hBitmap = hbmp;
1106 fm.cfFormat = CF_BITMAP;
1107 }
1108 stgm.pUnkForRelease = NULL;
1109
1110 fm.ptd = NULL;
1111 fm.dwAspect = DVASPECT_CONTENT;
1112 fm.lindex = -1;
1113 fm.tymed = stgm.tymed;
1114
1115 if (!info->lpRichEditOle)
1116 {
1117 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
1118 }
1119
1120 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1121 #if 0
1122 /* FIXME: enable it when rich-edit properly implements this method */
1123 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
1124 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1125 #endif
1126 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1127 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1128 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1129 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1130 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1131 {
1132 REOBJECT reobject;
1133
1134 reobject.cbStruct = sizeof(reobject);
1135 reobject.cp = REO_CP_SELECTION;
1136 reobject.clsid = clsid;
1137 reobject.poleobj = lpObject;
1138 reobject.pstg = lpStorage;
1139 reobject.polesite = lpClientSite;
1140 /* convert from twips to .01 mm */
1141 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1142 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1143 reobject.dvaspect = DVASPECT_CONTENT;
1144 reobject.dwFlags = 0; /* FIXME */
1145 reobject.dwUser = 0;
1146
1147 /* FIXME: could be simpler */
1148 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
1149 }
1150
1151 if (lpObject) IOleObject_Release(lpObject);
1152 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1153 if (lpStorage) IStorage_Release(lpStorage);
1154 if (lpDataObject) IDataObject_Release(lpDataObject);
1155 if (lpOleCache) IOleCache_Release(lpOleCache);
1156
1157 return ret;
1158 }
1159
1160 static void ME_RTFReadPictGroup(RTF_Info *info)
1161 {
1162 SIZEL sz;
1163 BYTE* buffer = NULL;
1164 unsigned bufsz, bufidx;
1165 BOOL flip;
1166 BYTE val;
1167 METAFILEPICT mfp;
1168 HENHMETAFILE hemf;
1169 HBITMAP hbmp;
1170 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1171
1172 RTFGetToken (info);
1173 if (info->rtfClass == rtfEOF)
1174 return;
1175 mfp.mm = MM_TEXT;
1176 /* fetch picture type */
1177 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
1178 {
1179 mfp.mm = info->rtfParam;
1180 gfx = gfx_metafile;
1181 }
1182 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
1183 {
1184 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1185 gfx = gfx_dib;
1186 }
1187 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
1188 {
1189 gfx = gfx_enhmetafile;
1190 }
1191 else
1192 {
1193 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
1194 goto skip_group;
1195 }
1196 sz.cx = sz.cy = 0;
1197 /* fetch picture attributes */
1198 for (;;)
1199 {
1200 RTFGetToken (info);
1201 if (info->rtfClass == rtfEOF)
1202 return;
1203 if (info->rtfClass == rtfText)
1204 break;
1205 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
1206 {
1207 ERR("Expected picture attribute (%d %d)\n",
1208 info->rtfClass, info->rtfMajor);
1209 goto skip_group;
1210 }
1211 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
1212 {
1213 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
1214 }
1215 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
1216 {
1217 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
1218 }
1219 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
1220 sz.cx = info->rtfParam;
1221 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
1222 sz.cy = info->rtfParam;
1223 else
1224 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1225 }
1226 /* fetch picture data */
1227 bufsz = 1024;
1228 bufidx = 0;
1229 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
1230 val = info->rtfMajor;
1231 for (flip = TRUE;; flip = !flip)
1232 {
1233 RTFGetToken (info);
1234 if (info->rtfClass == rtfEOF)
1235 {
1236 HeapFree(GetProcessHeap(), 0, buffer);
1237 return; /* Warn ?? */
1238 }
1239 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1240 break;
1241 if (info->rtfClass != rtfText) goto skip_group;
1242 if (flip)
1243 {
1244 if (bufidx >= bufsz &&
1245 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
1246 goto skip_group;
1247 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1248 }
1249 else
1250 val = info->rtfMajor;
1251 }
1252 if (flip) FIXME("wrong hex string\n");
1253
1254 switch (gfx)
1255 {
1256 case gfx_enhmetafile:
1257 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
1258 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1259 break;
1260 case gfx_metafile:
1261 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
1262 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
1263 break;
1264 case gfx_dib:
1265 {
1266 BITMAPINFO* bi = (BITMAPINFO*)buffer;
1267 HDC hdc = GetDC(0);
1268 unsigned nc = bi->bmiHeader.biClrUsed;
1269
1270 /* not quite right, especially for bitfields type of compression */
1271 if (!nc && bi->bmiHeader.biBitCount <= 8)
1272 nc = 1 << bi->bmiHeader.biBitCount;
1273 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
1274 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1275 bi, DIB_RGB_COLORS)))
1276 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
1277 ReleaseDC(0, hdc);
1278 }
1279 break;
1280 default:
1281 break;
1282 }
1283 HeapFree(GetProcessHeap(), 0, buffer);
1284 RTFRouteToken (info); /* feed "}" back to router */
1285 return;
1286 skip_group:
1287 HeapFree(GetProcessHeap(), 0, buffer);
1288 RTFSkipGroup(info);
1289 RTFRouteToken(info); /* feed "}" back to router */
1290 }
1291
1292 /* for now, lookup the \result part and use it, whatever the object */
1293 static void ME_RTFReadObjectGroup(RTF_Info *info)
1294 {
1295 for (;;)
1296 {
1297 RTFGetToken (info);
1298 if (info->rtfClass == rtfEOF)
1299 return;
1300 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1301 break;
1302 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1303 {
1304 RTFGetToken (info);
1305 if (info->rtfClass == rtfEOF)
1306 return;
1307 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1308 {
1309 int level = 1;
1310
1311 while (RTFGetToken (info) != rtfEOF)
1312 {
1313 if (info->rtfClass == rtfGroup)
1314 {
1315 if (info->rtfMajor == rtfBeginGroup) level++;
1316 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1317 }
1318 RTFRouteToken(info);
1319 }
1320 }
1321 else RTFSkipGroup(info);
1322 continue;
1323 }
1324 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1325 {
1326 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1327 return;
1328 }
1329 }
1330 RTFRouteToken(info); /* feed "}" back to router */
1331 }
1332
1333 static void ME_RTFReadHook(RTF_Info *info)
1334 {
1335 switch(info->rtfClass)
1336 {
1337 case rtfGroup:
1338 switch(info->rtfMajor)
1339 {
1340 case rtfBeginGroup:
1341 if (info->stackTop < maxStack) {
1342 info->stack[info->stackTop].fmt = info->style->fmt;
1343 info->stack[info->stackTop].codePage = info->codePage;
1344 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1345 }
1346 info->stackTop++;
1347 info->styleChanged = FALSE;
1348 break;
1349 case rtfEndGroup:
1350 {
1351 ME_Style *s;
1352 RTFFlushOutputBuffer(info);
1353 info->stackTop--;
1354 if (info->stackTop<=0) {
1355 info->rtfClass = rtfEOF;
1356 return;
1357 }
1358 assert(info->stackTop >= 0);
1359 if (info->styleChanged)
1360 {
1361 /* FIXME too slow ? how come ? */
1362 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
1363 ME_ReleaseStyle(info->style);
1364 info->style = s;
1365 info->codePage = info->stack[info->stackTop].codePage;
1366 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1367 }
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, to2, nUndoMode;
1390 int nEventMask = editor->nEventMask;
1391 ME_InStream inStream;
1392 BOOL invalidRTF = FALSE;
1393
1394 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
1395 editor->nEventMask = 0;
1396
1397 ME_GetSelection(editor, &from, &to);
1398 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1399 style = ME_GetSelectionInsertStyle(editor);
1400
1401 ME_InternalDeleteText(editor, from, to-from, FALSE);
1402
1403 /* Don't insert text at the end of the table row */
1404 if (!editor->bEmulateVersion10) { /* v4.1 */
1405 ME_DisplayItem *para = ME_GetParagraph(editor->pCursors->pRun);
1406 if (para->member.para.nFlags & MEPF_ROWEND)
1407 {
1408 para = para->member.para.next_para;
1409 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1410 editor->pCursors[0].nOffset = 0;
1411 }
1412 if (para->member.para.nFlags & MEPF_ROWSTART)
1413 {
1414 para = para->member.para.next_para;
1415 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
1416 editor->pCursors[0].nOffset = 0;
1417 }
1418 editor->pCursors[1] = editor->pCursors[0];
1419 } else { /* v1.0 - 3.0 */
1420 if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
1421 ME_IsInTable(editor->pCursors[0].pRun))
1422 return 0;
1423 }
1424 }
1425 else {
1426 ME_DisplayItem *para_item;
1427 style = editor->pBuffer->pDefaultStyle;
1428 ME_AddRefStyle(style);
1429 ME_SetSelection(editor, 0, 0);
1430 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
1431 from = to = 0;
1432 ME_ClearTempStyle(editor);
1433
1434 para_item = ME_GetParagraph(editor->pCursors[0].pRun);
1435 ME_SetDefaultParaFormat(para_item->member.para.pFmt);
1436 }
1437
1438
1439 /* Back up undo mode to a local variable */
1440 nUndoMode = editor->nUndoMode;
1441
1442 /* Only create an undo if SFF_SELECTION is set */
1443 if (!(format & SFF_SELECTION))
1444 editor->nUndoMode = umIgnore;
1445
1446 inStream.editstream = stream;
1447 inStream.editstream->dwError = 0;
1448 inStream.dwSize = 0;
1449 inStream.dwUsed = 0;
1450
1451 if (format & SF_RTF)
1452 {
1453 /* Check if it's really RTF, and if it is not, use plain text */
1454 ME_StreamInFill(&inStream);
1455 if (!inStream.editstream->dwError)
1456 {
1457 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1458 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1459 {
1460 invalidRTF = TRUE;
1461 inStream.editstream->dwError = -16;
1462 }
1463 }
1464 }
1465
1466 if (!invalidRTF && !inStream.editstream->dwError)
1467 {
1468 if (format & SF_RTF) {
1469 /* setup the RTF parser */
1470 memset(&parser, 0, sizeof parser);
1471 RTFSetEditStream(&parser, &inStream);
1472 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1473 parser.editor = editor;
1474 parser.style = style;
1475 WriterInit(&parser);
1476 RTFInit(&parser);
1477 RTFSetReadHook(&parser, ME_RTFReadHook);
1478 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1479 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1480 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1481 {
1482 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1483 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1484 }
1485 BeginFile(&parser);
1486
1487 /* do the parsing */
1488 RTFRead(&parser);
1489 RTFFlushOutputBuffer(&parser);
1490 if (!editor->bEmulateVersion10) { /* v4.1 */
1491 if (parser.tableDef && parser.tableDef->tableRowStart &&
1492 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1493 {
1494 /* Delete any incomplete table row at the end of the rich text. */
1495 int nOfs, nChars;
1496 ME_DisplayItem *pCell;
1497 ME_DisplayItem *para;
1498
1499 parser.rtfMinor = rtfRow;
1500 /* Complete the table row before deleting it.
1501 * By doing it this way we will have the current paragraph format set
1502 * properly to reflect that is not in the complete table, and undo items
1503 * will be added for this change to the current paragraph format. */
1504 if (parser.nestingLevel > 0)
1505 {
1506 while (parser.nestingLevel > 1)
1507 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1508 para = parser.tableDef->tableRowStart;
1509 ME_RTFSpecialCharHook(&parser);
1510 } else {
1511 para = parser.tableDef->tableRowStart;
1512 ME_RTFSpecialCharHook(&parser);
1513 assert(para->member.para.nFlags & MEPF_ROWEND);
1514 para = para->member.para.next_para;
1515 }
1516 pCell = para->member.para.pCell;
1517
1518 editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
1519 editor->pCursors[1].nOffset = 0;
1520 nOfs = ME_GetCursorOfs(editor, 1);
1521 nChars = ME_GetCursorOfs(editor, 0) - nOfs;
1522 ME_InternalDeleteText(editor, nOfs, nChars, TRUE);
1523 if (parser.tableDef)
1524 parser.tableDef->tableRowStart = NULL;
1525 }
1526 }
1527 ME_CheckTablesForCorruption(editor);
1528 RTFDestroy(&parser);
1529 if (parser.lpRichEditOle)
1530 IRichEditOle_Release(parser.lpRichEditOle);
1531
1532 if (!inStream.editstream->dwError && parser.stackTop > 0)
1533 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1534
1535 /* Remove last line break, as mandated by tests. This is not affected by
1536 CR/LF counters, since RTF streaming presents only \para tokens, which
1537 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1538 */
1539 if (stripLastCR) {
1540 int newfrom, newto;
1541 ME_GetSelection(editor, &newfrom, &newto);
1542 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1543 WCHAR lastchar[3] = {'\0', '\0'};
1544 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1545
1546 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1547 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1548 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize, FALSE);
1549 }
1550 }
1551 }
1552
1553 style = parser.style;
1554 }
1555 else if (format & SF_TEXT)
1556 ME_StreamInText(editor, format, &inStream, style);
1557 else
1558 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1559 ME_GetSelection(editor, &to, &to2);
1560 /* put the cursor at the top */
1561 if (!(format & SFF_SELECTION))
1562 ME_SetSelection(editor, 0, 0);
1563 }
1564
1565 /* Restore saved undo mode */
1566 editor->nUndoMode = nUndoMode;
1567
1568 /* even if we didn't add an undo, we need to commit anything on the stack */
1569 ME_CommitUndo(editor);
1570
1571 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1572 if (!(format & SFF_SELECTION))
1573 ME_EmptyUndoStack(editor);
1574
1575 ME_ReleaseStyle(style);
1576 editor->nEventMask = nEventMask;
1577 ME_UpdateRepaint(editor);
1578 if (!(format & SFF_SELECTION)) {
1579 ME_ClearTempStyle(editor);
1580 }
1581 HideCaret(editor->hWnd);
1582 ME_MoveCaret(editor);
1583 ShowCaret(editor->hWnd);
1584 ME_SendSelChange(editor);
1585 ME_SendRequestResize(editor, FALSE);
1586
1587 return 0;
1588 }
1589
1590
1591 typedef struct tagME_RTFStringStreamStruct
1592 {
1593 char *string;
1594 int pos;
1595 int length;
1596 } ME_RTFStringStreamStruct;
1597
1598 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1599 {
1600 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1601 int count;
1602
1603 count = min(cb, pStruct->length - pStruct->pos);
1604 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1605 pStruct->pos += count;
1606 *pcb = count;
1607 return 0;
1608 }
1609
1610 static void
1611 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1612 {
1613 EDITSTREAM es;
1614 ME_RTFStringStreamStruct data;
1615
1616 data.string = string;
1617 data.length = strlen(string);
1618 data.pos = 0;
1619 es.dwCookie = (DWORD_PTR)&data;
1620 es.pfnCallback = ME_ReadFromRTFString;
1621 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1622 }
1623
1624
1625 ME_DisplayItem *
1626 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1627 {
1628 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1629 int runLength;
1630
1631 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1632 item = ME_FindItemFwd(item, diParagraph);
1633
1634 if (!item)
1635 return item;
1636
1637 nOffset -= item->member.para.nCharOfs;
1638 if (nItemType == diParagraph) {
1639 if (nItemOffset)
1640 *nItemOffset = nOffset;
1641 return item;
1642 }
1643
1644 do {
1645 item = ME_FindItemFwd(item, diRun);
1646 runLength = ME_StrLen(item->member.run.strText);
1647 if (item->member.run.nFlags & MERF_ENDPARA)
1648 runLength = item->member.run.nCR + item->member.run.nLF;
1649 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1650 if (item) {
1651 nOffset -= item->member.run.nCharOfs;
1652
1653 /* Special case: nOffset may not point exactly at the division between the
1654 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1655 into the next run, if one exists
1656 */
1657 if ( item->member.run.nFlags & MERF_ENDPARA
1658 && nOffset == item->member.run.nCR
1659 && item->member.run.nLF > 0) {
1660 ME_DisplayItem *nextItem;
1661 nextItem = ME_FindItemFwd(item, diRun);
1662 if (nextItem) {
1663 nOffset = 0;
1664 item = nextItem;
1665 }
1666 }
1667 if (nItemOffset)
1668 *nItemOffset = nOffset;
1669 }
1670 return item;
1671 }
1672
1673
1674 static int
1675 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1676 {
1677 const int nLen = lstrlenW(text);
1678 const int nTextLen = ME_GetTextLength(editor);
1679 int nStart, nEnd;
1680 int nMin, nMax;
1681 ME_DisplayItem *item;
1682 ME_DisplayItem *para;
1683 WCHAR wLastChar = ' ';
1684
1685 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1686 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1687
1688 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1689 FIXME("Flags 0x%08x not implemented\n",
1690 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1691
1692 nMin = chrg->cpMin;
1693 if (chrg->cpMax == -1)
1694 nMax = nTextLen;
1695 else
1696 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1697
1698 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1699 if (editor->bEmulateVersion10 && nMax == nTextLen)
1700 {
1701 flags |= FR_DOWN;
1702 }
1703
1704 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1705 if (editor->bEmulateVersion10 && nMax < nMin)
1706 {
1707 if (chrgText)
1708 {
1709 chrgText->cpMin = -1;
1710 chrgText->cpMax = -1;
1711 }
1712 return -1;
1713 }
1714
1715 /* when searching up, if cpMin < cpMax, then instead of searching
1716 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1717 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1718 * case, it is always bigger than cpMin.
1719 */
1720 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1721 {
1722 int nSwap = nMax;
1723
1724 nMax = nMin > nTextLen ? nTextLen : nMin;
1725 if (nMin < nSwap || chrg->cpMax == -1)
1726 nMin = 0;
1727 else
1728 nMin = nSwap;
1729 }
1730
1731 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1732 {
1733 if (chrgText)
1734 chrgText->cpMin = chrgText->cpMax = -1;
1735 return -1;
1736 }
1737
1738 if (flags & FR_DOWN) /* Forward search */
1739 {
1740 /* If possible, find the character before where the search starts */
1741 if ((flags & FR_WHOLEWORD) && nMin)
1742 {
1743 nStart = nMin - 1;
1744 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1745 if (!item)
1746 {
1747 if (chrgText)
1748 chrgText->cpMin = chrgText->cpMax = -1;
1749 return -1;
1750 }
1751 wLastChar = item->member.run.strText->szData[nStart];
1752 }
1753
1754 nStart = nMin;
1755 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1756 if (!item)
1757 {
1758 if (chrgText)
1759 chrgText->cpMin = chrgText->cpMax = -1;
1760 return -1;
1761 }
1762
1763 para = ME_GetParagraph(item);
1764 while (item
1765 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1766 {
1767 ME_DisplayItem *pCurItem = item;
1768 int nCurStart = nStart;
1769 int nMatched = 0;
1770
1771 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1772 {
1773 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1774 break;
1775
1776 nMatched++;
1777 if (nMatched == nLen)
1778 {
1779 ME_DisplayItem *pNextItem = pCurItem;
1780 int nNextStart = nCurStart;
1781 WCHAR wNextChar;
1782
1783 /* Check to see if next character is a whitespace */
1784 if (flags & FR_WHOLEWORD)
1785 {
1786 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1787 {
1788 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1789 nNextStart = -nMatched;
1790 }
1791
1792 if (pNextItem)
1793 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1794 else
1795 wNextChar = ' ';
1796
1797 if (isalnumW(wNextChar))
1798 break;
1799 }
1800
1801 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1802 if (chrgText)
1803 {
1804 chrgText->cpMin = nStart;
1805 chrgText->cpMax = nStart + nLen;
1806 }
1807 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1808 return nStart;
1809 }
1810 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1811 {
1812 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1813 para = ME_GetParagraph(pCurItem);
1814 nCurStart = -nMatched;
1815 }
1816 }
1817 if (pCurItem)
1818 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1819 else
1820 wLastChar = ' ';
1821
1822 nStart++;
1823 if (nStart == ME_StrLen(item->member.run.strText))
1824 {
1825 item = ME_FindItemFwd(item, diRun);
1826 para = ME_GetParagraph(item);
1827 nStart = 0;
1828 }
1829 }
1830 }
1831 else /* Backward search */
1832 {
1833 /* If possible, find the character after where the search ends */
1834 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1835 {
1836 nEnd = nMax + 1;
1837 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1838 if (!item)
1839 {
1840 if (chrgText)
1841 chrgText->cpMin = chrgText->cpMax = -1;
1842 return -1;
1843 }
1844 wLastChar = item->member.run.strText->szData[nEnd];
1845 }
1846
1847 nEnd = nMax;
1848 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1849 if (!item)
1850 {
1851 if (chrgText)
1852 chrgText->cpMin = chrgText->cpMax = -1;
1853 return -1;
1854 }
1855
1856 para = ME_GetParagraph(item);
1857
1858 while (item
1859 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1860 {
1861 ME_DisplayItem *pCurItem = item;
1862 int nCurEnd = nEnd;
1863 int nMatched = 0;
1864
1865 if (nCurEnd - nMatched == 0)
1866 {
1867 pCurItem = ME_FindItemBack(pCurItem, diRun);
1868 para = ME_GetParagraph(pCurItem);
1869 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1870 }
1871
1872 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1873 {
1874 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1875 break;
1876
1877 nMatched++;
1878 if (nMatched == nLen)
1879 {
1880 ME_DisplayItem *pPrevItem = pCurItem;
1881 int nPrevEnd = nCurEnd;
1882 WCHAR wPrevChar;
1883
1884 /* Check to see if previous character is a whitespace */
1885 if (flags & FR_WHOLEWORD)
1886 {
1887 if (nPrevEnd - nMatched == 0)
1888 {
1889 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1890 if (pPrevItem)
1891 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1892 }
1893
1894 if (pPrevItem)
1895 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1896 else
1897 wPrevChar = ' ';
1898
1899 if (isalnumW(wPrevChar))
1900 break;
1901 }
1902
1903 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1904 if (chrgText)
1905 {
1906 chrgText->cpMin = nStart;
1907 chrgText->cpMax = nStart + nLen;
1908 }
1909 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1910 return nStart;
1911 }
1912 if (nCurEnd - nMatched == 0)
1913 {
1914 pCurItem = ME_FindItemBack(pCurItem, diRun);
1915 /* Don't care about pCurItem becoming NULL here; it's already taken
1916 * care of in the exterior loop condition */
1917 para = ME_GetParagraph(pCurItem);
1918 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1919 }
1920 }
1921 if (pCurItem)
1922 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1923 else
1924 wLastChar = ' ';
1925
1926 nEnd--;
1927 if (nEnd < 0)
1928 {
1929 item = ME_FindItemBack(item, diRun);
1930 para = ME_GetParagraph(item);
1931 nEnd = ME_StrLen(item->member.run.strText);
1932 }
1933 }
1934 }
1935 TRACE("not found\n");
1936 if (chrgText)
1937 chrgText->cpMin = chrgText->cpMax = -1;
1938 return -1;
1939 }
1940
1941 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
1942 {
1943 int nStart, nCount; /* in chars */
1944
1945 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1946 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1947
1948 if (ex->flags & GT_SELECTION)
1949 {
1950 ME_GetSelection(editor, &nStart, &nCount);
1951 nCount -= nStart;
1952 }
1953 else
1954 {
1955 nStart = 0;
1956 nCount = 0x7fffffff;
1957 }
1958 if (ex->codepage == 1200)
1959 {
1960 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
1961 return ME_GetTextW(editor, (LPWSTR)pText, nStart, nCount, ex->flags & GT_USECRLF);
1962 }
1963 else
1964 {
1965 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1966 we can just take a bigger buffer? :)
1967 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
1968 occurs only in richedit 2.0 mode, in which line breaks have only one CR
1969 */
1970 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1971 LPWSTR buffer;
1972 DWORD buflen = ex->cb;
1973 LRESULT rc;
1974 DWORD flags = 0;
1975
1976 nCount = min(nCount, ex->cb - 1);
1977 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
1978
1979 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
1980 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1,
1981 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
1982 if (rc) rc--; /* do not count 0 terminator */
1983
1984 heap_free(buffer);
1985 return rc;
1986 }
1987 }
1988
1989 static int ME_GetTextRange(ME_TextEditor *editor, TEXTRANGEW *rng, BOOL unicode)
1990 {
1991 if (unicode)
1992 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin,
1993 rng->chrg.cpMax-rng->chrg.cpMin, 0);
1994 else
1995 {
1996 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
1997 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1998 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
1999 /* FIXME this is a potential security hole (buffer overrun)
2000 if you know more about wchar->mbyte conversion please explain
2001 */
2002 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2003 FREE_OBJ(p);
2004 return nChars;
2005 }
2006 }
2007
2008 typedef struct tagME_GlobalDestStruct
2009 {
2010 HGLOBAL hData;
2011 int nLength;
2012 } ME_GlobalDestStruct;
2013
2014 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2015 {
2016 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2017 int i;
2018 WORD *pSrc, *pDest;
2019
2020 cb = cb >> 1;
2021 pDest = (WORD *)lpBuff;
2022 pSrc = GlobalLock(pData->hData);
2023 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2024 pDest[i] = pSrc[pData->nLength+i];
2025 }
2026 pData->nLength += i;
2027 *pcb = 2*i;
2028 GlobalUnlock(pData->hData);
2029 return 0;
2030 }
2031
2032 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2033 {
2034 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2035 int i;
2036 BYTE *pSrc, *pDest;
2037
2038 pDest = lpBuff;
2039 pSrc = GlobalLock(pData->hData);
2040 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2041 pDest[i] = pSrc[pData->nLength+i];
2042 }
2043 pData->nLength += i;
2044 *pcb = i;
2045 GlobalUnlock(pData->hData);
2046 return 0;
2047 }
2048
2049 static BOOL ME_Paste(ME_TextEditor *editor)
2050 {
2051 DWORD dwFormat = 0;
2052 EDITSTREAM es;
2053 ME_GlobalDestStruct gds;
2054 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2055 UINT cf = 0;
2056
2057 if (IsClipboardFormatAvailable(nRTFFormat))
2058 cf = nRTFFormat, dwFormat = SF_RTF;
2059 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2060 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2061 else
2062 return FALSE;
2063
2064 if (!OpenClipboard(editor->hWnd))
2065 return FALSE;
2066 gds.hData = GetClipboardData(cf);
2067 gds.nLength = 0;
2068 es.dwCookie = (DWORD_PTR)&gds;
2069 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2070 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2071
2072 CloseClipboard();
2073 return TRUE;
2074 }
2075
2076 static BOOL ME_Copy(ME_TextEditor *editor, CHARRANGE *range)
2077 {
2078 LPDATAOBJECT dataObj = NULL;
2079 HRESULT hr = S_OK;
2080
2081 if (editor->cPasswordMask)
2082 return FALSE; /* Copying or Cutting masked text isn't allowed */
2083
2084 if(editor->lpOleCallback)
2085 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, range, RECO_COPY, &dataObj);
2086 if(FAILED(hr) || !dataObj)
2087 hr = ME_GetDataObject(editor, range, &dataObj);
2088 if(SUCCEEDED(hr)) {
2089 hr = OleSetClipboard(dataObj);
2090 IDataObject_Release(dataObj);
2091 }
2092 return SUCCEEDED(hr) != 0;
2093 }
2094
2095 /* helper to send a msg filter notification */
2096 static BOOL
2097 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
2098 {
2099 MSGFILTER msgf;
2100
2101 msgf.nmhdr.hwndFrom = editor->hWnd;
2102 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2103 msgf.nmhdr.code = EN_MSGFILTER;
2104 msgf.msg = msg;
2105
2106 msgf.wParam = *wParam;
2107 msgf.lParam = *lParam;
2108 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
2109 return FALSE;
2110 *wParam = msgf.wParam;
2111 *lParam = msgf.lParam;
2112 msgf.wParam = *wParam;
2113
2114 return TRUE;
2115 }
2116
2117 static BOOL
2118 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2119 {
2120 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2121 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2122
2123 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2124 editor->nSelectionType = stPosition;
2125
2126 switch (nKey)
2127 {
2128 case VK_LEFT:
2129 case VK_RIGHT:
2130 case VK_HOME:
2131 case VK_END:
2132 editor->nUDArrowX = -1;
2133 /* fall through */
2134 case VK_UP:
2135 case VK_DOWN:
2136 case VK_PRIOR:
2137 case VK_NEXT:
2138 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2139 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2140 return TRUE;
2141 case VK_BACK:
2142 case VK_DELETE:
2143 editor->nUDArrowX = -1;
2144 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2145 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
2146 return FALSE;
2147 if (ME_IsSelection(editor))
2148 {
2149 ME_DeleteSelection(editor);
2150 ME_CommitUndo(editor);
2151 }
2152 else if (nKey == VK_DELETE)
2153 {
2154 /* Delete stops group typing.
2155 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2156 ME_DeleteTextAtCursor(editor, 1, 1);
2157 ME_CommitUndo(editor);
2158 }
2159 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2160 {
2161 BOOL bDeletionSucceeded;
2162 /* Backspace can be grouped for a single undo */
2163 ME_ContinueCoalescingTransaction(editor);
2164 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2165 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2166 /* Deletion was prevented so the cursor is moved back to where it was.
2167 * (e.g. this happens when trying to delete cell boundaries)
2168 */
2169 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2170 }
2171 ME_CommitCoalescingUndo(editor);
2172 }
2173 else
2174 return TRUE;
2175 ME_MoveCursorFromTableRowStartParagraph(editor);
2176 ME_UpdateSelectionLinkAttribute(editor);
2177 ME_UpdateRepaint(editor);
2178 ME_SendRequestResize(editor, FALSE);
2179 return TRUE;
2180 case 'A':
2181 if (ctrl_is_down)
2182 {
2183 ME_SetSelection(editor, 0, -1);
2184 return TRUE;
2185 }
2186 break;
2187 case 'V':
2188 if (ctrl_is_down)
2189 return ME_Paste(editor);
2190 break;
2191 case 'C':
2192 case 'X':
2193 if (ctrl_is_down)
2194 {
2195 CHARRANGE range;
2196 BOOL result;
2197
2198 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2199 result = ME_Copy(editor, &range);
2200 if (result && nKey == 'X')
2201 {
2202 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
2203 ME_CommitUndo(editor);
2204 ME_UpdateRepaint(editor);
2205 }
2206 return result;
2207 }
2208 break;
2209 case 'Z':
2210 if (ctrl_is_down)
2211 {
2212 ME_Undo(editor);
2213 return TRUE;
2214 }
2215 break;
2216 case 'Y':
2217 if (ctrl_is_down)
2218 {
2219 ME_Redo(editor);
2220 return TRUE;
2221 }
2222 break;
2223
2224 default:
2225 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2226 editor->nUDArrowX = -1;
2227 if (ctrl_is_down)
2228 {
2229 if (nKey == 'W')
2230 {
2231 CHARFORMAT2W chf;
2232 char buf[2048];
2233 chf.cbSize = sizeof(chf);
2234
2235 ME_GetSelectionCharFormat(editor, &chf);
2236 ME_DumpStyleToBuf(&chf, buf);
2237 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2238 }
2239 if (nKey == 'Q')
2240 {
2241 ME_CheckCharOffsets(editor);
2242 }
2243 }
2244 }
2245 return FALSE;
2246 }
2247
2248 static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
2249 LPARAM flags, BOOL unicode)
2250 {
2251 WCHAR wstr;
2252
2253 if (unicode)
2254 wstr = (WCHAR)charCode;
2255 else
2256 {
2257 CHAR charA = charCode;
2258 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2259 }
2260
2261 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
2262 MessageBeep(MB_ICONERROR);
2263 return 0; /* FIXME really 0 ? */
2264 }
2265
2266 if (((unsigned)wstr)>=' '
2267 || (wstr=='\r' && (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_MULTILINE))
2268 || wstr=='\t') {
2269 ME_Cursor cursor = editor->pCursors[0];
2270 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
2271 int from, to;
2272 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2273 ME_GetSelection(editor, &from, &to);
2274 if (wstr=='\t'
2275 /* v4.1 allows tabs to be inserted with ctrl key down */
2276 && !(ctrl_is_down && !editor->bEmulateVersion10)
2277 )
2278 {
2279 ME_DisplayItem *para;
2280 BOOL bSelectedRow = FALSE;
2281
2282 para = ME_GetParagraph(cursor.pRun);
2283 if (ME_IsSelection(editor) &&
2284 cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2285 to == ME_GetCursorOfs(editor, 0) &&
2286 para->member.para.prev_para->type == diParagraph)
2287 {
2288 para = para->member.para.prev_para;
2289 bSelectedRow = TRUE;
2290 }
2291 if (ME_IsInTable(para))
2292 {
2293 ME_TabPressedInTable(editor, bSelectedRow);
2294 ME_CommitUndo(editor);
2295 return 0;
2296 }
2297 } else if (!editor->bEmulateVersion10) { /* v4.1 */
2298 if (para->member.para.nFlags & MEPF_ROWEND) {
2299 if (wstr=='\r') {
2300 /* Add a new table row after this row. */
2301 para = ME_AppendTableRow(editor, para);
2302 para = para->member.para.next_para;
2303 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2304 editor->pCursors[0].nOffset = 0;
2305 editor->pCursors[1] = editor->pCursors[0];
2306 ME_CommitUndo(editor);
2307 ME_CheckTablesForCorruption(editor);
2308 ME_UpdateRepaint(editor);
2309 return 0;
2310 } else if (from == to) {
2311 para = para->member.para.next_para;
2312 if (para->member.para.nFlags & MEPF_ROWSTART)
2313 para = para->member.para.next_para;
2314 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2315 editor->pCursors[0].nOffset = 0;
2316 editor->pCursors[1] = editor->pCursors[0];
2317 }
2318 }
2319 else if (para == ME_GetParagraph(editor->pCursors[1].pRun) &&
2320 cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
2321 para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
2322 !para->member.para.prev_para->member.para.nCharOfs)
2323 {
2324 /* Insert a newline before the table. */
2325 WCHAR endl = '\r';
2326 para = para->member.para.prev_para;
2327 para->member.para.nFlags &= ~MEPF_ROWSTART;
2328 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2329 editor->pCursors[1] = editor->pCursors[0];
2330 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2331 editor->pCursors[0].pRun->member.run.style);
2332 para = editor->pBuffer->pFirst->member.para.next_para;
2333 ME_SetDefaultParaFormat(para->member.para.pFmt);
2334 para->member.para.nFlags = MEPF_REWRAP;
2335 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2336 editor->pCursors[1] = editor->pCursors[0];
2337 para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
2338 ME_CommitCoalescingUndo(editor);
2339 ME_CheckTablesForCorruption(editor);
2340 ME_UpdateRepaint(editor);
2341 return 0;
2342 }
2343 } else { /* v1.0 - 3.0 */
2344 ME_DisplayItem *para = ME_GetParagraph(cursor.pRun);
2345 if (ME_IsInTable(cursor.pRun))
2346 {
2347 if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
2348 {
2349 if (from == to) {
2350 if (wstr=='\r') {
2351 ME_ContinueCoalescingTransaction(editor);
2352 para = ME_AppendTableRow(editor, para);
2353 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2354 editor->pCursors[0].nOffset = 0;
2355 editor->pCursors[1] = editor->pCursors[0];
2356 ME_CommitCoalescingUndo(editor);
2357 ME_UpdateRepaint(editor);
2358 } else {
2359 /* Text should not be inserted at the end of the table. */
2360 MessageBeep(-1);
2361 }
2362 return 0;
2363 }
2364 } else if (wstr == '\r') {
2365 ME_ContinueCoalescingTransaction(editor);
2366 if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
2367 !ME_IsInTable(para->member.para.prev_para))
2368 {
2369 /* Insert newline before table */
2370 WCHAR endl = '\r';
2371 cursor.pRun = ME_FindItemBack(para, diRun);
2372 if (cursor.pRun)
2373 editor->pCursors[0].pRun = cursor.pRun;
2374 editor->pCursors[0].nOffset = 0;
2375 editor->pCursors[1] = editor->pCursors[0];
2376 ME_InsertTextFromCursor(editor, 0, &endl, 1,
2377 editor->pCursors[0].pRun->member.run.style);
2378 } else {
2379 editor->pCursors[1] = editor->pCursors[0];
2380 para = ME_AppendTableRow(editor, para);
2381 editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
2382 editor->pCursors[0].nOffset = 0;
2383 editor->pCursors[1] = editor->pCursors[0];
2384 }
2385 ME_CommitCoalescingUndo(editor);
2386 ME_UpdateRepaint(editor);
2387 return 0;
2388 }
2389 }
2390 }
2391 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2392 /* WM_CHAR is restricted to nTextLimit */
2393 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2394 {
2395 ME_Style *style = ME_GetInsertStyle(editor, 0);
2396 ME_SaveTempStyle(editor);
2397 ME_ContinueCoalescingTransaction(editor);
2398 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
2399 ME_InsertEndRowFromCursor(editor, 0);
2400 else
2401 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2402 ME_ReleaseStyle(style);
2403 ME_CommitCoalescingUndo(editor);
2404 SetCursor(NULL);
2405 }
2406
2407 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2408
2409 ME_UpdateRepaint(editor);
2410 }
2411 return 0;
2412 }
2413
2414 /* Process the message and calculate the new click count.
2415 *
2416 * returns: The click count if it is mouse down event, else returns 0. */
2417 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2418 LPARAM lParam)
2419 {
2420 static int clickNum = 0;
2421 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2422 return 0;
2423
2424 if ((msg == WM_LBUTTONDBLCLK) ||
2425 (msg == WM_RBUTTONDBLCLK) ||
2426 (msg == WM_MBUTTONDBLCLK) ||
2427 (msg == WM_XBUTTONDBLCLK))
2428 {
2429 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2430 }
2431
2432 if ((msg == WM_LBUTTONDOWN) ||
2433 (msg == WM_RBUTTONDOWN) ||
2434 (msg == WM_MBUTTONDOWN) ||
2435 (msg == WM_XBUTTONDOWN))
2436 {
2437 static MSG prevClickMsg;
2438 MSG clickMsg;
2439 /* Compare the editor instead of the hwnd so that the this
2440 * can still be done for windowless richedit controls. */
2441 clickMsg.hwnd = (HWND)editor;
2442 clickMsg.message = msg;
2443 clickMsg.wParam = wParam;
2444 clickMsg.lParam = lParam;
2445 clickMsg.time = GetMessageTime();
2446 clickMsg.pt.x = (short)LOWORD(lParam);
2447 clickMsg.pt.y = (short)HIWORD(lParam);
2448 if ((clickNum != 0) &&
2449 (clickMsg.message == prevClickMsg.message) &&
2450 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2451 (clickMsg.wParam == prevClickMsg.wParam) &&
2452 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2453 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2454 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2455 {
2456 clickNum++;
2457 } else {
2458 clickNum = 1;
2459 }
2460 prevClickMsg = clickMsg;
2461 } else {
2462 return 0;
2463 }
2464 return clickNum;
2465 }
2466
2467 static BOOL ME_SetCursor(ME_TextEditor *editor)
2468 {
2469 POINT pt;
2470 BOOL isExact;
2471 int offset;
2472 SCROLLBARINFO sbi;
2473 DWORD messagePos = GetMessagePos();
2474 pt.x = (short)LOWORD(messagePos);
2475 pt.y = (short)HIWORD(messagePos);
2476
2477 sbi.cbSize = sizeof(sbi);
2478 GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
2479 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2480 PtInRect(&sbi.rcScrollBar, pt))
2481 {
2482 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2483 return TRUE;
2484 }
2485 sbi.cbSize = sizeof(sbi);
2486 GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
2487 if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
2488 PtInRect(&sbi.rcScrollBar, pt))
2489 {
2490 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2491 return TRUE;
2492 }
2493 ScreenToClient(editor->hWnd, &pt);
2494
2495 if (editor->nSelectionType == stLine && GetCapture() == editor->hWnd) {
2496 SetCursor(hLeft);
2497 return TRUE;
2498 }
2499 if (!editor->bEmulateVersion10 /* v4.1 */ &&
2500 pt.y < editor->rcFormat.top &&
2501 pt.x < editor->rcFormat.left)
2502 {
2503 SetCursor(hLeft);
2504 return TRUE;
2505 }
2506 if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
2507 {
2508 if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
2509 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2510 else /* v4.1 */
2511 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
2512 return TRUE;
2513 }
2514 if (pt.x < editor->rcFormat.left)
2515 {
2516 SetCursor(hLeft);
2517 return TRUE;
2518 }
2519 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
2520 if (isExact)
2521 {
2522 if (editor->AutoURLDetect_bEnable)
2523 {
2524 ME_Cursor cursor;
2525 ME_Run *run;
2526 ME_CursorFromCharOfs(editor, offset, &cursor);
2527 run = &cursor.pRun->member.run;
2528 if (editor->AutoURLDetect_bEnable &&
2529 run->style->fmt.dwMask & CFM_LINK &&
2530 run->style->fmt.dwEffects & CFE_LINK)
2531 {
2532 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
2533 return TRUE;
2534 }
2535 }
2536 if (ME_IsSelection(editor))
2537 {
2538 int selStart, selEnd;
2539 ME_GetSelection(editor, &selStart, &selEnd);
2540 if (selStart <= offset && selEnd >= offset) {
2541 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
2542 return TRUE;
2543 }
2544 }
2545 }
2546 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
2547 return TRUE;
2548 }
2549
2550 static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
2551 {
2552 DWORD exstyle = GetWindowLongW(editor->hWnd, GWL_EXSTYLE);
2553
2554 GetClientRect(editor->hWnd, &editor->rcFormat);
2555 editor->rcFormat.top += (exstyle & WS_EX_CLIENTEDGE ? 1 : 0);
2556 editor->rcFormat.left += 1 + editor->selofs;
2557 editor->rcFormat.right -= 1;
2558 }
2559
2560 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2561 {
2562 CHARRANGE selrange;
2563 HMENU menu;
2564 int seltype = 0;
2565 if(!editor->lpOleCallback)
2566 return FALSE;
2567 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
2568 if(selrange.cpMin == selrange.cpMax)
2569 seltype |= SEL_EMPTY;
2570 else
2571 {
2572 /* FIXME: Handle objects */
2573 seltype |= SEL_TEXT;
2574 if(selrange.cpMax-selrange.cpMin > 1)
2575 seltype |= SEL_MULTICHAR;
2576 }
2577 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
2578 {
2579 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
2580 DestroyMenu(menu);
2581 }
2582 return TRUE;
2583 }
2584
2585 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
2586 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
2587 int i;
2588 ed->hWnd = hWnd;
2589 ed->bEmulateVersion10 = FALSE;
2590 ed->pBuffer = ME_MakeText();
2591 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2592 ME_MakeFirstParagraph(ed);
2593 /* The four cursors are for:
2594 * 0 - The position where the caret is shown
2595 * 1 - The anchored end of the selection (for normal selection)
2596 * 2 & 3 - The anchored start and end respectively for word, line,
2597 * or paragraph selection.
2598 */
2599 ed->nCursors = 4;
2600 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
2601 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2602 ed->pCursors[0].nOffset = 0;
2603 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
2604 ed->pCursors[1].nOffset = 0;
2605 ed->pCursors[2] = ed->pCursors[0];
2606 ed->pCursors[3] = ed->pCursors[1];
2607 ed->nLastTotalLength = ed->nTotalLength = 0;
2608 ed->nUDArrowX = -1;
2609 ed->nSequence = 0;
2610 ed->rgbBackColor = -1;
2611 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2612 ed->bCaretAtEnd = FALSE;
2613 ed->nEventMask = 0;
2614 ed->nModifyStep = 0;
2615 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2616 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
2617 ed->nUndoStackSize = 0;
2618 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2619 ed->nUndoMode = umAddToUndo;
2620 ed->nParagraphs = 1;
2621 ed->nLastSelStart = ed->nLastSelEnd = 0;
2622 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
2623 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & (WS_HSCROLL|ES_AUTOHSCROLL)) ? FALSE : TRUE;
2624 ed->bHideSelection = FALSE;
2625 ed->nInvalidOfs = -1;
2626 ed->pfnWordBreak = NULL;
2627 ed->lpOleCallback = NULL;
2628 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2629 ed->AutoURLDetect_bEnable = FALSE;
2630 ed->bHaveFocus = FALSE;
2631 for (i=0; i<HFONT_CACHE_SIZE; i++)
2632 {
2633 ed->pFontCache[i].nRefs = 0;
2634 ed->pFontCache[i].nAge = 0;
2635 ed->pFontCache[i].hFont = NULL;
2636 }
2637
2638 ME_CheckCharOffsets(ed);
2639 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
2640 ed->selofs = SELECTIONBAR_WIDTH;
2641 else
2642 ed->selofs = 0;
2643 ed->bDefaultFormatRect = TRUE;
2644 ed->nSelectionType = stPosition;
2645
2646 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
2647 ed->cPasswordMask = '*';
2648 else
2649 ed->cPasswordMask = 0;
2650
2651 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
2652
2653 /* Default vertical scrollbar information */
2654 ed->vert_si.cbSize = sizeof(SCROLLINFO);
2655 ed->vert_si.nMin = 0;
2656 ed->vert_si.nMax = 0;
2657 ed->vert_si.nPage = 0;
2658 ed->vert_si.nPos = 0;
2659
2660 OleInitialize(NULL);
2661
2662 return ed;
2663 }
2664
2665 void ME_DestroyEditor(ME_TextEditor *editor)
2666 {
2667 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
2668 ME_DisplayItem *p = pFirst, *pNext = NULL;
2669 int i;
2670
2671 ME_ClearTempStyle(editor);
2672 ME_EmptyUndoStack(editor);
2673 while(p) {
2674 pNext = p->next;
2675 ME_DestroyDisplayItem(p);
2676 p = pNext;
2677 }
2678 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
2679 for (i=0; i<HFONT_CACHE_SIZE; i++)
2680 {
2681 if (editor->pFontCache[i].hFont)
2682 DeleteObject(editor->pFontCache[i].hFont);
2683 }
2684 if (editor->rgbBackColor != -1)
2685 DeleteObject(editor->hbrBackground);
2686 if(editor->lpOleCallback)
2687 IUnknown_Release(editor->lpOleCallback);
2688 SetWindowLongPtrW(editor->hWnd, 0, 0);
2689 OleUninitialize();
2690
2691 FREE_OBJ(editor->pBuffer);
2692 FREE_OBJ(editor->pCursors);
2693
2694 FREE_OBJ(editor);
2695 }
2696
2697 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
2698 {
2699 TRACE("\n");
2700 switch (fdwReason)
2701 {
2702 case DLL_PROCESS_ATTACH:
2703 DisableThreadLibraryCalls(hinstDLL);
2704 me_heap = HeapCreate (0, 0x10000, 0);
2705 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
2706 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
2707 LookupInit();
2708 break;
2709
2710 case DLL_PROCESS_DETACH:
2711 UnregisterClassW(RichEdit20W, 0);
2712 UnregisterClassW(RichEdit50W, 0);
2713 UnregisterClassA("RichEdit20A", 0);
2714 UnregisterClassA("RichEdit50A", 0);
2715 if (ME_ListBoxRegistered)
2716 UnregisterClassW(REListBox20W, 0);
2717 if (ME_ComboBoxRegistered)
2718 UnregisterClassW(REComboBox20W, 0);
2719 LookupCleanup();
2720 HeapDestroy (me_heap);
2721 me_heap = NULL;
2722 break;
2723 }
2724 return TRUE;
2725 }
2726
2727
2728 static const char * const edit_messages[] = {
2729 "EM_GETSEL",
2730 "EM_SETSEL",
2731 "EM_GETRECT",
2732 "EM_SETRECT",
2733 "EM_SETRECTNP",
2734 "EM_SCROLL",
2735 "EM_LINESCROLL",
2736 "EM_SCROLLCARET",
2737 "EM_GETMODIFY",
2738 "EM_SETMODIFY",
2739 "EM_GETLINECOUNT",
2740 "EM_LINEINDEX",
2741 "EM_SETHANDLE",
2742 "EM_GETHANDLE",
2743 "EM_GETTHUMB",
2744 "EM_UNKNOWN_BF",
2745 "EM_UNKNOWN_C0",
2746 "EM_LINELENGTH",
2747 "EM_REPLACESEL",
2748 "EM_UNKNOWN_C3",
2749 "EM_GETLINE",
2750 "EM_LIMITTEXT",
2751 "EM_CANUNDO",
2752 "EM_UNDO",
2753 "EM_FMTLINES",
2754 "EM_LINEFROMCHAR",
2755 "EM_UNKNOWN_CA",
2756 "EM_SETTABSTOPS",
2757 "EM_SETPASSWORDCHAR",
2758 "EM_EMPTYUNDOBUFFER",
2759 "EM_GETFIRSTVISIBLELINE",
2760 "EM_SETREADONLY",
2761 "EM_SETWORDBREAKPROC",
2762 "EM_GETWORDBREAKPROC",
2763 "EM_GETPASSWORDCHAR",
2764 "EM_SETMARGINS",
2765 "EM_GETMARGINS",
2766 "EM_GETLIMITTEXT",
2767 "EM_POSFROMCHAR",
2768 "EM_CHARFROMPOS",
2769 "EM_SETIMESTATUS",
2770 "EM_GETIMESTATUS"
2771 };
2772
2773 static const char * const richedit_messages[] = {
2774 "EM_CANPASTE",
2775 "EM_DISPLAYBAND",
2776 "EM_EXGETSEL",
2777 "EM_EXLIMITTEXT",
2778 "EM_EXLINEFROMCHAR",
2779 "EM_EXSETSEL",
2780 "EM_FINDTEXT",
2781 "EM_FORMATRANGE",
2782 "EM_GETCHARFORMAT",
2783 "EM_GETEVENTMASK",
2784 "EM_GETOLEINTERFACE",
2785 "EM_GETPARAFORMAT",
2786 "EM_GETSELTEXT",
2787 "EM_HIDESELECTION",
2788 "EM_PASTESPECIAL",
2789 "EM_REQUESTRESIZE",
2790 "EM_SELECTIONTYPE",
2791 "EM_SETBKGNDCOLOR",
2792 "EM_SETCHARFORMAT",
2793 "EM_SETEVENTMASK",
2794 "EM_SETOLECALLBACK",
2795 "EM_SETPARAFORMAT",
2796 "EM_SETTARGETDEVICE",
2797 "EM_STREAMIN",
2798 "EM_STREAMOUT",
2799 "EM_GETTEXTRANGE",
2800 "EM_FINDWORDBREAK",
2801 "EM_SETOPTIONS",
2802 "EM_GETOPTIONS",
2803 "EM_FINDTEXTEX",
2804 "EM_GETWORDBREAKPROCEX",
2805 "EM_SETWORDBREAKPROCEX",
2806 "EM_SETUNDOLIMIT",
2807 "EM_UNKNOWN_USER_83",
2808 "EM_REDO",
2809 "EM_CANREDO",
2810 "EM_GETUNDONAME",
2811 "EM_GETREDONAME",
2812 "EM_STOPGROUPTYPING",
2813 "EM_SETTEXTMODE",
2814 "EM_GETTEXTMODE",
2815 "EM_AUTOURLDETECT",
2816 "EM_GETAUTOURLDETECT",
2817 "EM_SETPALETTE",
2818 "EM_GETTEXTEX",
2819 "EM_GETTEXTLENGTHEX",
2820 "EM_SHOWSCROLLBAR",
2821 "EM_SETTEXTEX",
2822 "EM_UNKNOWN_USER_98",
2823 "EM_UNKNOWN_USER_99",
2824 "EM_SETPUNCTUATION",
2825 "EM_GETPUNCTUATION",
2826 "EM_SETWORDWRAPMODE",
2827 "EM_GETWORDWRAPMODE",
2828 "EM_SETIMECOLOR",
2829 "EM_GETIMECOLOR",
2830 "EM_SETIMEOPTIONS",
2831 "EM_GETIMEOPTIONS",
2832 "EM_CONVPOSITION",
2833 "EM_UNKNOWN_USER_109",
2834 "EM_UNKNOWN_USER_110",
2835 "EM_UNKNOWN_USER_111",
2836 "EM_UNKNOWN_USER_112",
2837 "EM_UNKNOWN_USER_113",
2838 "EM_UNKNOWN_USER_114",
2839 "EM_UNKNOWN_USER_115",
2840 "EM_UNKNOWN_USER_116",
2841 "EM_UNKNOWN_USER_117",
2842 "EM_UNKNOWN_USER_118",
2843 "EM_UNKNOWN_USER_119",
2844 "EM_SETLANGOPTIONS",
2845 "EM_GETLANGOPTIONS",
2846 "EM_GETIMECOMPMODE",
2847 "EM_FINDTEXTW",
2848 "EM_FINDTEXTEXW",
2849 "EM_RECONVERSION",
2850 "EM_SETIMEMODEBIAS",
2851 "EM_GETIMEMODEBIAS"
2852 };
2853
2854 static const char *
2855 get_msg_name(UINT msg)
2856 {
2857 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2858 return edit_messages[msg - EM_GETSEL];
2859 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2860 return richedit_messages[msg - EM_CANPASTE];
2861 return "";
2862 }
2863
2864 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2865 LPARAM lParam, BOOL unicode)
2866 {
2867 ME_TextEditor *editor;
2868 HRESULT hresult;
2869 LRESULT lresult;
2870
2871 TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2872 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2873
2874 editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2875 if (!editor)
2876 {
2877 if (msg == WM_NCCREATE)
2878 {
2879 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2880 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2881 editor = ME_MakeEditor(hWnd);
2882 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2883 return TRUE;
2884 }
2885 else if (msg != WM_NCDESTROY)
2886 {
2887 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2888 return 0;
2889 }
2890 }
2891
2892 lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
2893
2894 if (hresult == S_FALSE)
2895 lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
2896
2897 TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
2898 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
2899
2900 return lresult;
2901 }
2902
2903 #define UNSUPPORTED_MSG(e) \
2904 case e: \
2905 FIXME(#e ": stub\n"); \
2906 *phresult = S_FALSE; \
2907 return 0;
2908
2909 /* Handle messages for windowless and windoweded richedit controls.
2910 *
2911 * The LRESULT that is returned is a return value for window procs,
2912 * and the phresult parameter is the COM return code needed by the
2913 * text services interface. */
2914 LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2915 LPARAM lParam, BOOL unicode, HRESULT* phresult)
2916 {
2917 *phresult = S_OK;
2918
2919 switch(msg) {
2920
2921 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2922 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2923 UNSUPPORTED_MSG(EM_FMTLINES)
2924 UNSUPPORTED_MSG(EM_FORMATRANGE)
2925 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2926 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2927 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2928 UNSUPPORTED_MSG(EM_GETIMESTATUS)
2929 UNSUPPORTED_MSG(EM_SETIMESTATUS)
2930 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2931 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2932 UNSUPPORTED_MSG(EM_GETREDONAME)
2933 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2934 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2935 UNSUPPORTED_MSG(EM_GETUNDONAME)
2936 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2937 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2938 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2939 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2940 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2941 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2942 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2943 UNSUPPORTED_MSG(EM_SETMARGINS)
2944 UNSUPPORTED_MSG(EM_SETPALETTE)
2945 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2946 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2947 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2948 UNSUPPORTED_MSG(WM_STYLECHANGING)
2949 UNSUPPORTED_MSG(WM_STYLECHANGED)
2950
2951 /* Messages specific to Richedit controls */
2952
2953 case EM_STREAMIN:
2954 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2955 case EM_STREAMOUT:
2956 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2957 case WM_GETDLGCODE:
2958 {
2959 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2960 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2961 {
2962 int vk = (int)((LPMSG)lParam)->wParam;
2963 /* if style says we want return key */
2964 if((vk == VK_RETURN) && (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_WANTRETURN))
2965 {
2966 code |= DLGC_WANTMESSAGE;
2967 }
2968 /* we always handle ctrl-tab */
2969 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2970 {
2971 code |= DLGC_WANTMESSAGE;
2972 }
2973 }
2974 return code;
2975 }
2976 case EM_EMPTYUNDOBUFFER:
2977 ME_EmptyUndoStack(editor);
2978 return 0;
2979 case EM_GETSEL:
2980 {
2981 /* Note: wParam/lParam can be NULL */
2982 UINT from, to;
2983 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2984 PUINT pto = lParam ? (PUINT)lParam : &to;
2985 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2986 if ((*pfrom|*pto) & 0xFFFF0000)
2987 return -1;
2988 return MAKELONG(*pfrom,*pto);
2989 }
2990 case EM_EXGETSEL:
2991 {
2992 CHARRANGE *pRange = (CHARRANGE *)lParam;
2993 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2994 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2995 return 0;
2996 }
2997 case EM_SETUNDOLIMIT:
2998 {
2999 if ((int)wParam < 0)
3000 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3001 else
3002 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3003 /* Setting a max stack size keeps wine from getting killed
3004 for hogging memory. Windows allocates all this memory at once, so
3005 no program would realistically set a value above our maximum. */
3006 return editor->nUndoLimit;
3007 }
3008 case EM_CANUNDO:
3009 return editor->pUndoStack != NULL;
3010 case EM_CANREDO:
3011 return editor->pRedoStack != NULL;
3012 case WM_UNDO: /* FIXME: actually not the same */
3013 case EM_UNDO:
3014 return ME_Undo(editor);
3015 case EM_REDO:
3016 return ME_Redo(editor);
3017 case EM_GETOPTIONS:
3018 {
3019 /* these flags are equivalent to the ES_* counterparts */
3020 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3021 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3022 DWORD settings = GetWindowLongW(editor->hWnd, GWL_STYLE) & mask;
3023
3024 return settings;
3025 }
3026 case EM_SETOPTIONS:
3027 {
3028 /* these flags are equivalent to ES_* counterparts
3029 * ECO_READONLY is already implemented in the code, only requires
3030 * setting the bit to work
3031 */
3032 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
3033 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
3034 DWORD raw = GetWindowLongW(editor->hWnd, GWL_STYLE);
3035 DWORD settings = mask & raw;
3036 DWORD oldSettings = settings;
3037 DWORD changedSettings;
3038
3039 switch(wParam)
3040 {
3041 case ECOOP_SET:
3042 settings = lParam;
3043 break;
3044 case ECOOP_OR:
3045 settings |= lParam;
3046 break;
3047 case ECOOP_AND:
3048 settings &= lParam;
3049 break;
3050 case ECOOP_XOR:
3051 settings ^= lParam;
3052 }
3053 SetWindowLongW(editor->hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
3054
3055 changedSettings = oldSettings ^ settings;
3056
3057 if (settings & ECO_AUTOWORDSELECTION)
3058 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
3059
3060 if (oldSettings ^ settings) {
3061 if (settings & ECO_SELECTIONBAR) {
3062 editor->selofs = SELECTIONBAR_WIDTH;
3063 editor->rcFormat.left += SELECTIONBAR_WIDTH;
3064 } else {
3065 editor->selofs = 0;
3066 editor->rcFormat.left -= SELECTIONBAR_WIDTH;
3067 }
3068 ME_WrapMarkedParagraphs(editor);
3069 }
3070
3071 if (settings & ECO_VERTICAL)
3072 FIXME("ECO_VERTICAL not implemented yet!\n");
3073 if (settings & ECO_AUTOHSCROLL)
3074 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
3075 if (settings & ECO_AUTOVSCROLL)
3076 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
3077 if (settings & ECO_NOHIDESEL)
3078 FIXME("ECO_NOHIDESEL not implemented yet!\n");
3079 if (settings & ECO_WANTRETURN)
3080 FIXME("ECO_WANTRETURN not implemented yet!\n");
3081
3082 return settings;
3083 }
3084 case EM_SETSEL:
3085 {
3086 ME_InvalidateSelection(editor);
3087 ME_SetSelection(editor, wParam, lParam);
3088 ME_InvalidateSelection(editor);
3089 HideCaret(editor->hWnd);
3090 ME_ShowCaret(editor);
3091 ME_SendSelChange(editor);
3092 return 0;
3093 }
3094 case EM_SETSCROLLPOS:
3095 {
3096 POINT *point = (POINT *)lParam;
3097 ME_ScrollAbs(editor, point->y);
3098 return 0;
3099 }
3100 case EM_AUTOURLDETECT:
3101 {
3102 if (wParam==1 || wParam ==0)
3103 {
3104 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3105 return 0;
3106 }
3107 return E_INVALIDARG;
3108 }
3109 case EM_GETAUTOURLDETECT:
3110 {
3111 return editor->AutoURLDetect_bEnable;
3112 }
3113 case EM_EXSETSEL:
3114 {
3115 int end;
3116 CHARRANGE range = *(CHARRANGE *)lParam;
3117
3118 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
3119
3120 ME_InvalidateSelection(editor);
3121 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
3122 ME_InvalidateSelection(editor);
3123 HideCaret(editor->hWnd);
3124 ME_ShowCaret(editor);
3125 ME_SendSelChange(editor);
3126
3127 return end;
3128 }
3129 case EM_SHOWSCROLLBAR:
3130 {
3131 ShowScrollBar(editor->hWnd, wParam, lParam);
3132 return 0;
3133 }
3134 case EM_SETTEXTEX:
3135 {
3136 LPWSTR wszText;
3137 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3138 size_t len;
3139 int from, to;
3140 ME_Style *style;
3141 int oldModify = editor->nModifyStep;
3142
3143 if (!pStruct) return 0;
3144
3145 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3146 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3147 pStruct->flags, pStruct->codepage);
3148
3149 /* FIXME: make use of pStruct->codepage in the to unicode translation */
3150 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
3151 len = wszText ? lstrlenW(wszText) : 0;
3152
3153 if (pStruct->flags & ST_SELECTION) {
3154 ME_GetSelection(editor, &from, &to);
3155 style = ME_GetSelectionInsertStyle(editor);
3156 ME_InternalDeleteText(editor, from, to - from, FALSE);
3157 if (pStruct->codepage != 1200 && lParam &&
3158 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
3159 ME_StreamInRTFString(editor, 1, (char *)lParam);
3160 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3161 ME_ReleaseStyle(style);
3162
3163 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3164 }
3165 else {
3166 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3167 if (pStruct->codepage != 1200 && lParam &&
3168 (!strncmp((char *)lParam, "{\\rtf", 5) || !strncmp((char *)lParam, "{\\urtf}", 6)))
3169 ME_StreamInRTFString(editor, 0, (char *)lParam);
3170 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3171 len = 1;
3172
3173 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
3174 }
3175 ME_CommitUndo(editor);
3176 if (!(pStruct->flags & ST_KEEPUNDO))
3177 {
3178 editor->nModifyStep = oldModify;
3179 ME_EmptyUndoStack(editor);
3180 }
3181 ME_UpdateRepaint(editor);
3182 return len;
3183 }
3184 case EM_SETBKGNDCOLOR:
3185 {
3186 LRESULT lColor;
3187 if (editor->rgbBackColor != -1) {
3188 DeleteObject(editor->hbrBackground);
3189 lColor = editor->rgbBackColor;
3190 }
3191 else lColor = GetSysColor(COLOR_WINDOW);
3192
3193 if (wParam)
3194 {
3195 editor->rgbBackColor = -1;
3196 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
3197 }
3198 else
3199 {
3200 editor->rgbBackColor = lParam;
3201 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
3202 }
3203 InvalidateRect(editor->hWnd, NULL, TRUE);
3204 UpdateWindow(editor->hWnd);
3205 return lColor;
3206 }
3207 case EM_GETMODIFY:
3208 return editor->nModifyStep == 0 ? 0 : -1;
3209 case EM_SETMODIFY:
3210 {
3211 if (wParam)
3212 editor->nModifyStep = 1;
3213 else
3214 editor->nModifyStep = 0;
3215
3216 return 0;
3217 }
3218 case EM_SETREADONLY:
3219 {
3220 long nStyle = GetWindowLongW(editor->hWnd, GWL_STYLE);
3221 if (wParam)
3222 nStyle |= ES_READONLY;
3223 else
3224 nStyle &= ~ES_READONLY;
3225 SetWindowLongW(editor->hWnd, GWL_STYLE, nStyle);
3226 return 0;
3227 }
3228 case EM_SETEVENTMASK:
3229 {
3230 DWORD nOldMask = editor->nEventMask;
3231
3232 editor->nEventMask = lParam;
3233 return nOldMask;
3234 }
3235 case EM_GETEVENTMASK:
3236 return editor->nEventMask;
3237 case EM_SETCHARFORMAT:
3238 {
3239 CHARFORMAT2W buf, *p;
3240 BOOL bRepaint = TRUE;
3241 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
3242 if (p == NULL) return 0;
3243 if (!wParam)
3244 ME_SetDefaultCharFormat(editor, p);
3245 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
3246 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
3247 return 0;
3248 } else if (wParam == SCF_ALL) {
3249 if (editor->mode & TM_PLAINTEXT)
3250 ME_SetDefaultCharFormat(editor, p);
3251 else {
3252 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
3253 editor->nModifyStep = 1;
3254 }
3255 } else if (editor->mode & TM_PLAINTEXT) {
3256 return 0;
3257 } else {
3258 int from, to;
3259 ME_GetSelection(editor, &from, &to);
3260 bRepaint = (from != to);
3261 ME_SetSelectionCharFormat(editor, p);
3262 if (from != to) editor->nModifyStep = 1;
3263 }
3264 ME_CommitUndo(editor);
3265 if (bRepaint)
3266 {
3267 ME_WrapMarkedParagraphs(editor);
3268 ME_UpdateScrollBar(editor);
3269 ME_Repaint(editor);
3270 }
3271 return 1;
3272 }
3273 case EM_GETCHARFORMAT:
3274 {
3275 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3276 if (dst->cbSize != sizeof(CHARFORMATA) &&
3277 dst->cbSize != sizeof(CHARFORMATW) &&
3278 dst->cbSize != sizeof(CHARFORMAT2A) &&
3279 dst->cbSize != sizeof(CHARFORMAT2W))
3280 return 0;
3281 tmp.cbSize = sizeof(tmp);
3282 if (!wParam)
3283 ME_GetDefaultCharFormat(editor, &tmp);
3284 else
3285 ME_GetSelectionCharFormat(editor, &tmp);
3286 ME_CopyToCFAny(dst, &tmp);
3287 return tmp.dwMask;
3288 }
3289 case EM_SETPARAFORMAT:
3290 {
3291 BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3292 ME_WrapMarkedParagraphs(editor);
3293 ME_UpdateScrollBar(editor);
3294 ME_Repaint(editor);
3295 ME_CommitUndo(editor);
3296 return result;
3297 }
3298 case EM_GETPARAFORMAT:
3299 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
3300 return ((PARAFORMAT2 *)lParam)->dwMask;
3301 case EM_GETFIRSTVISIBLELINE:
3302 {
3303 ME_DisplayItem *p = editor->pBuffer->pFirst;
3304 int y = ME_GetYScrollPos(editor);
3305 int ypara = 0;
3306 int count = 0;
3307 int ystart, yend;
3308 while(p) {
3309 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
3310 if (p->type == diTextEnd)
3311 break;
3312 if (p->type == diParagraph) {
3313 ypara = p->member.para.pt.y;
3314 continue;
3315 }
3316 ystart = ypara + p->member.row.pt.y;
3317 yend = ystart + p->member.row.nHeight;
3318 if (y < yend) {
3319 break;
3320 }
3321 count++;
3322 }
3323 return count;
3324 }
3325 case EM_HIDESELECTION:
3326 {
3327 editor->bHideSelection = (wParam != 0);
3328 ME_InvalidateSelection(editor);
3329 return 0;
3330 }
3331 case EM_LINESCROLL:
3332 {
3333 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
3334 return TRUE; /* Should return false if a single line richedit control */
3335 }
3336 case WM_CLEAR:
3337 {
3338 int from, to;
3339 ME_GetSelection(editor, &from, &to);
3340 ME_InternalDeleteText(editor, from, to-from, FALSE);
3341 ME_CommitUndo(editor);
3342 ME_UpdateRepaint(editor);
3343 return 0;
3344 }
3345 case EM_REPLACESEL:
3346 {
3347 int from, to;
3348 ME_Style *style;
3349 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
3350 size_t len = wszText ? lstrlenW(wszText) : 0;
3351 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
3352
3353 ME_GetSelection(editor, &from, &to);
3354 style = ME_GetSelectionInsertStyle(editor);
3355 ME_InternalDeleteText(editor, from, to-from, FALSE);
3356 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3357 ME_ReleaseStyle(style);
3358 /* drop temporary style if line end */
3359 /*
3360 * FIXME question: does abc\n mean: put abc,
3361 * clear temp style, put \n? (would require a change)
3362 */
3363 if (len>0 && wszText[len-1] == '\n')
3364 ME_ClearTempStyle(editor);
3365 ME_EndToUnicode(unicode, wszText);
3366 ME_CommitUndo(editor);
3367 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3368 if (!wParam)
3369 ME_EmptyUndoStack(editor);
3370 ME_UpdateRepaint(editor);
3371 return len;
3372 }
3373 case EM_SCROLLCARET:
3374 ME_EnsureVisible(editor, editor->pCursors[0].pRun);
3375 return 0;
3376 case WM_SETFONT:
3377 {
3378 LOGFONTW lf;
3379 CHARFORMAT2W fmt;
3380 HDC hDC;
3381 BOOL bRepaint = LOWORD(lParam);
3382
3383 if (!wParam)
3384 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3385 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
3386 hDC = GetDC(editor->hWnd);
3387 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3388 ReleaseDC(editor->hWnd, hDC);
3389 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
3390 ME_SetDefaultCharFormat(editor, &fmt);
3391
3392 ME_CommitUndo(editor);
3393 if (bRepaint)
3394 ME_RewrapRepaint(editor);
3395 return 0;
3396 }
3397 case WM_SETTEXT:
3398 {
3399 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor), FALSE);
3400 if (lParam)
3401 {
3402 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3403 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
3404 {
3405 /* Undocumented: WM_SETTEXT supports RTF text */
3406 ME_StreamInRTFString(editor, 0, (char *)lParam);
3407 }
3408 else
3409 {
3410 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
3411 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
3412 if (lstrlenW(wszText) > 0)
3413 {
3414 int len = -1;
3415
3416 /* uses default style! */
3417 if (!(GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_MULTILINE))
3418 {
3419 WCHAR * p;
3420
3421 p = wszText;
3422 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
3423 len = p - wszText;
3424 }
3425 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
3426 }
3427 ME_EndToUnicode(unicode, wszText);
3428 }
3429 }
3430 else
3431 TRACE("WM_SETTEXT - NULL\n");
3432 if (editor->AutoURLDetect_bEnable)
3433 {
3434 ME_UpdateLinkAttribute(editor, 0, -1);
3435 }
3436 ME_SetSelection(editor, 0, 0);
3437 editor->nModifyStep = 0;
3438 ME_CommitUndo(editor);
3439 ME_EmptyUndoStack(editor);
3440 ME_UpdateRepaint(editor);
3441 return 1;
3442 }
3443 case EM_CANPASTE:
3444 {
3445 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
3446 if (IsClipboardFormatAvailable(nRTFFormat))
3447 return TRUE;
3448 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
3449 return TRUE;
3450 return FALSE;
3451 }
3452 case WM_PASTE:
3453 ME_Paste(editor);
3454 return 0;
3455 case WM_CUT:
3456 case WM_COPY:
3457 {
3458 CHARRANGE range;
3459 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
3460
3461 if (ME_Copy(editor, &range) && msg == WM_CUT)
3462 {
3463 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin, FALSE);
3464 ME_CommitUndo(editor);
3465 ME_UpdateRepaint(editor);
3466 }
3467 return 0;
3468 }
3469 case WM_GETTEXTLENGTH:
3470 {
3471 GETTEXTLENGTHEX how;
3472
3473 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
3474 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3475 how.codepage = unicode ? 1200 : CP_ACP;
3476 return ME_GetTextLengthEx(editor, &how);
3477 }
3478 case EM_GETTEXTLENGTHEX:
3479 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3480 case WM_GETTEXT:
3481 {
3482 GETTEXTEX ex;
3483 LRESULT rc;
3484 LPSTR bufferA = NULL;
3485 LPWSTR bufferW = NULL;
3486
3487 if (unicode)
3488 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
3489 else
3490 bufferA = heap_alloc(wParam + 2);
3491
3492 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
3493 ex.flags = GT_USECRLF;
3494 ex.codepage = unicode ? 1200 : CP_ACP;
3495 ex.lpDefaultChar = NULL;
3496 ex.lpUsedDefChar = NULL;
3497
3498 rc = ME_GetTextEx(editor, &ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA);
3499
3500 if (unicode)
3501 {
3502 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
3503 if (strlenW(bufferW) >= wParam) rc = 0;
3504 }
3505 else
3506 {
3507 memcpy((LPSTR)lParam, bufferA, wParam);
3508 if (strlen(bufferA) >= wParam) rc = 0;
3509 }
3510 heap_free(bufferA);
3511 heap_free(bufferW);
3512 return rc;
3513 }
3514 case EM_GETTEXTEX:
3515 return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
3516 case EM_GETSELTEXT:
3517 {
3518 int from, to;
3519 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
3520 ME_GetSelection(editor, &from, &to);
3521 tr.chrg.cpMin = from;
3522 tr.chrg.cpMax = to;
3523 tr.lpstrText = (WCHAR *)lParam;
3524 return ME_GetTextRange(editor, &tr, unicode);
3525 }
3526 case EM_GETSCROLLPOS:
3527 {
3528 POINT *point = (POINT *)lParam;
3529 point->x = 0; /* FIXME side scrolling not implemented */
3530 point->y = ME_GetYScrollPos(editor);
3531 return 1;
3532 }
3533 case EM_GETTEXTRANGE:
3534 {
3535 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3536 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
3537 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
3538 editor->bEmulateVersion10, ME_GetTextLength(editor));
3539 return ME_GetTextRange(editor, rng, unicode);
3540 }
3541 case EM_GETLINE:
3542 {
3543 ME_DisplayItem *run;
3544 const unsigned int nMaxChars = *(WORD *) lParam;
3545 unsigned int nCharsLeft = nMaxChars;
3546 char *dest = (char *) lParam;
3547 BOOL wroteNull = FALSE;
3548
3549 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
3550 unicode ? "Unicode" : "Ansi");
3551
3552 run = ME_FindRowWithNumber(editor, wParam);
3553 if (run == NULL)
3554 return 0;
3555
3556 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
3557 && !(run->member.run.nFlags & MERF_ENDPARA))
3558 {
3559 unsigned int nCopy;
3560 ME_String *strText;
3561 if (run->type != diRun)
3562 break;
3563 strText = run->member.run.strText;
3564 nCopy = min(nCharsLeft, strText->nLen);
3565
3566 if (unicode)
3567 memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
3568 else
3569 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
3570 nCharsLeft, NULL, NULL);
3571 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
3572 nCharsLeft -= nCopy;
3573 }
3574
3575 /* append line termination, space allowing */
3576 if (nCharsLeft > 0)
3577 {
3578 if (run && (run->member.run.nFlags & MERF_ENDPARA))
3579 {
3580 int i;
3581 /* Write as many \r as encoded in end-of-paragraph, space allowing */
3582 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
3583 {
3584 *((WCHAR *)dest) = '\r';
3585 dest += unicode ? sizeof(WCHAR) : 1;
3586 }
3587 /* Write as many \n as encoded in end-of-paragraph, space allowing */
3588 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
3589 {
3590 *((WCHAR *)dest) = '\n';
3591 dest += unicode ? sizeof(WCHAR) : 1;
3592 }
3593 }
3594 if (nCharsLeft > 0)
3595 {
3596 if (unicode)
3597 *((WCHAR *)dest) = '\0';
3598 else
3599 *dest = '\0';
3600 nCharsLeft--;
3601 wroteNull = TRUE;
3602 }
3603 }
3604
3605 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3606 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
3607 }
3608 case EM_GETLINECOUNT:
3609 {
3610 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
3611 int nRows = 0;
3612
3613 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
3614
3615 while (item != editor->pBuffer->pLast)
3616 {
3617 assert(item->type == diParagraph);
3618 prev_para = ME_FindItemBack(item, diRun);
3619 if (prev_para) {
3620 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
3621 }
3622 nRows += item->member.para.nRows;
3623 item = item->member.para.next_para;
3624 }
3625 last_para = ME_FindItemBack(item, diRun);
3626 assert(last_para);
3627 assert(last_para->member.run.nFlags & MERF_ENDPARA);
3628 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
3629 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
3630 {
3631 /* In 1.0 emulation, the last solitary \r at the very end of the text
3632 (if one exists) is NOT a line break.
3633 FIXME: this is an ugly hack. This should have a more regular model. */
3634 nRows--;
3635 }
3636
3637 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
3638 return max(1, nRows);
3639 }
3640 case EM_LINEFROMCHAR:
3641 {
3642 if (wParam == -1)
3643 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
3644 else
3645 return ME_RowNumberFromCharOfs(editor, wParam);
3646 }
3647 case EM_EXLINEFROMCHAR:
3648 {
3649 if (lParam == -1)
3650 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
3651 else
3652 return ME_RowNumberFromCharOfs(editor, lParam);
3653 }
3654 case EM_LINEINDEX:
3655 {
3656 ME_DisplayItem *item, *para;
3657 int nCharOfs;
3658
3659 if (wParam == -1)
3660 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
3661 else
3662 item = ME_FindRowWithNumber(editor, wParam);
3663 if (!item)
3664 return -1;
3665 para = ME_GetParagraph(item);
3666 item = ME_FindItemFwd(item, diRun);
3667 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
3668 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
3669 return nCharOfs;
3670 }
3671 case EM_LINELENGTH:
3672 {
3673 ME_DisplayItem *item, *item_end;
3674 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
3675
3676 if (wParam > ME_GetTextLength(editor))
3677 return 0;
3678 if (wParam == -1)
3679 {
3680 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3681 return 0;
3682 }
3683 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
3684 item = ME_RowStart(item);
3685 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
3686 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
3687 if (item_end->type == diStartRow)
3688 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
3689 else
3690 {
3691 ME_DisplayItem *endPara;
3692
3693 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
3694 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
3695 endPara = ME_FindItemBack(endPara, diRun);
3696 assert(endPara);
3697 assert(endPara->type == diRun);
3698 assert(endPara->member.run.nFlags & MERF_ENDPARA);
3699 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
3700 }
3701 nChars = nNextLineOfs - nThisLineOfs;
3702 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
3703 return nChars;
3704 }
3705 case EM_EXLIMITTEXT:
3706 {
3707 if ((int)lParam < 0)
3708 return 0;
3709 if (lParam == 0)
3710 editor->nTextLimit = 65536;
3711 else
3712 editor->nTextLimit = (int) lParam;
3713 return 0;
3714 }
3715 case EM_LIMITTEXT:
3716 {
3717 if (wParam == 0)
3718 editor->nTextLimit = 65536;
3719 else
3720 editor->nTextLimit = (int) wParam;
3721 return 0;
3722 }
3723 case EM_GETLIMITTEXT:
3724 {
3725 return editor->nTextLimit;
3726 }
3727 case EM_FINDTEXT:
3728 {
3729 FINDTEXTA *ft = (FINDTEXTA *)lParam;
3730 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
3731 WCHAR *tmp;
3732 LRESULT r;
3733
3734 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3735 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
3736 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
3737 FREE_OBJ( tmp );
3738 return r;
3739 }
3740 case EM_FINDTEXTEX:
3741 {
3742 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
3743 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
3744 WCHAR *tmp;
3745 LRESULT r;
3746
3747 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3748 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3749 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3750 FREE_OBJ( tmp );
3751 return r;
3752 }
3753 case EM_FINDTEXTW:
3754 {
3755 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3756 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3757 }
3758 case EM_FINDTEXTEXW:
3759 {
3760 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3761 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3762 }
3763 case EM_GETZOOM:
3764 if (!wParam || !lParam)
3765 return FALSE;
3766 *(int *)wParam = editor->nZoomNumerator;
3767 *(int *)lParam = editor->nZoomDenominator;
3768 return TRUE;
3769 case EM_SETZOOM:
3770 return ME_SetZoom(editor, wParam, lParam);
3771 case EM_CHARFROMPOS:
3772 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3773 case EM_POSFROMCHAR:
3774 {
3775 ME_DisplayItem *pRun;
3776 int nCharOfs, nOffset, nLength;
3777 POINTL pt = {0,0};
3778 SCROLLINFO si;
3779
3780 nCharOfs = wParam;
3781 /* detect which API version we're dealing with */
3782 if (wParam >= 0x40000)
3783 nCharOfs = lParam;
3784 nLength = ME_GetTextLength(editor);
3785 nCharOfs = min(nCharOfs, nLength);
3786 nCharOfs = max(nCharOfs, 0);
3787
3788 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
3789 assert(pRun->type == diRun);
3790 pt.y = pRun->member.run.pt.y;
3791 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3792 pt.y += ME_GetParagraph(pRun)->member.para.pt.y + editor->rcFormat.top;
3793 pt.x += editor->rcFormat.left;
3794
3795 pt.y -= editor->vert_si.nPos;
3796 si.cbSize = sizeof(si);
3797 si.fMask = SIF_POS;
3798 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3799
3800 if (wParam >= 0x40000) {
3801 *(POINTL *)wParam = pt;
3802 }
3803 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3804 }
3805 case WM_CREATE:
3806 {
3807 SCROLLINFO si;
3808
3809 ME_SetDefaultFormatRect(editor);
3810 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & WS_HSCROLL)
3811 { /* Squelch the default horizontal scrollbar it would make */
3812 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3813 }
3814
3815 si.cbSize = sizeof(si);
3816 si.fMask = SIF_PAGE | SIF_RANGE;
3817 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_DISABLENOSCROLL)
3818 si.fMask |= SIF_DISABLENOSCROLL;
3819 si.nMax = (si.fMask & SIF_DISABLENOSCROLL) ? 1 : 0;
3820 si.nMin = 0;
3821 si.nPage = 0;
3822 SetScrollInfo(editor->hWnd, SB_VERT, &si, TRUE);
3823
3824 ME_CommitUndo(editor);
3825 ME_WrapMarkedParagraphs(editor);
3826 ME_MoveCaret(editor);
3827 return 0;
3828 }
3829 case WM_DESTROY:
3830 ME_DestroyEditor(editor);
3831 return 0;
3832 case WM_SETCURSOR:
3833 {
3834 return ME_SetCursor(editor);
3835 }
3836 case WM_LBUTTONDBLCLK:
3837 case WM_LBUTTONDOWN:
3838 {
3839 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3840 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3841 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3842 return 0;
3843 SetFocus(editor->hWnd);
3844 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3845 ME_CalculateClickCount(editor, msg, wParam, lParam));
3846 SetCapture(editor->hWnd);
3847 ME_LinkNotify(editor,msg,wParam,lParam);
3848 if (!ME_SetCursor(editor)) goto do_default;
3849 break;
3850 }
3851 case WM_MOUSEMOVE:
3852 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3853 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3854 return 0;
3855 if (GetCapture() == editor->hWnd)
3856 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3857 ME_LinkNotify(editor,msg,wParam,lParam);
3858 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3859 if (GetCapture() == editor->hWnd)
3860 ME_SetCursor(editor);
3861 break;
3862 case WM_LBUTTONUP:
3863 if (GetCapture() == editor->hWnd)
3864 ReleaseCapture();
3865 if (editor->nSelectionType == stDocument)
3866 editor->nSelectionType = stPosition;
3867 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3868 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3869 return 0;
3870 else
3871 {
3872 ME_SetCursor(editor);
3873 ME_LinkNotify(editor,msg,wParam,lParam);
3874 }
3875 break;
3876 case WM_RBUTTONUP:
3877 case WM_RBUTTONDOWN:
3878 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3879 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3880 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3881 return 0;
3882 goto do_default;
3883 case WM_CONTEXTMENU:
3884 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3885 goto do_default;
3886 break;
3887 case WM_PAINT:
3888 {
3889 HDC hDC;
3890 RECT rc;
3891 PAINTSTRUCT ps;
3892
3893 hDC = BeginPaint(editor->hWnd, &ps);
3894 /* Erase area outside of the formatting rectangle */
3895 if (ps.rcPaint.top < editor->rcFormat.top)
3896 {
3897 rc = ps.rcPaint;
3898 rc.bottom = editor->rcFormat.top;
3899 FillRect(hDC, &rc, editor->hbrBackground);
3900 ps.rcPaint.top = editor->rcFormat.top;
3901 }
3902 if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
3903 rc = ps.rcPaint;
3904 rc.top = editor->rcFormat.bottom;
3905 FillRect(hDC, &rc, editor->hbrBackground);
3906 ps.rcPaint.bottom = editor->rcFormat.bottom;
3907 }
3908 if (ps.rcPaint.left < editor->rcFormat.left) {
3909 rc = ps.rcPaint;
3910 rc.right = editor->rcFormat.left;
3911 FillRect(hDC, &rc, editor->hbrBackground);
3912 ps.rcPaint.left = editor->rcFormat.left;
3913 }
3914 if (ps.rcPaint.right > editor->rcFormat.right) {
3915 rc = ps.rcPaint;
3916 rc.left = editor->rcFormat.right;
3917 FillRect(hDC, &rc, editor->hbrBackground);
3918 ps.rcPaint.right = editor->rcFormat.right;
3919 }
3920
3921 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3922 EndPaint(editor->hWnd, &ps);
3923 }
3924 break;
3925 case WM_SETFOCUS:
3926 editor->bHaveFocus = TRUE;
3927 ME_ShowCaret(editor);
3928 ME_SendOldNotify(editor, EN_SETFOCUS);
3929 return 0;
3930 case WM_KILLFOCUS:
3931 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3932 editor->bHaveFocus = FALSE;
3933 ME_HideCaret(editor);
3934 ME_SendOldNotify(editor, EN_KILLFOCUS);
3935 return 0;
3936 case WM_ERASEBKGND:
3937 {
3938 HDC hDC = (HDC)wParam;
3939 RECT rc;
3940 if (GetUpdateRect(editor->hWnd,&rc,TRUE))
3941 {
3942 FillRect(hDC, &rc, editor->hbrBackground);
3943 }
3944 return 1;
3945 }
3946 case WM_COMMAND:
3947 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3948 return 0;
3949 case WM_KEYUP:
3950 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3951 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3952 return 0;
3953 goto do_default;
3954 case WM_KEYDOWN:
3955 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3956 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3957 return 0;
3958 if (ME_KeyDown(editor, LOWORD(wParam)))
3959 return 0;
3960 goto do_default;
3961 case WM_CHAR:
3962 return ME_Char(editor, wParam, lParam, unicode);
3963 case WM_UNICHAR:
3964 if (unicode)
3965 {
3966 if(wParam == UNICODE_NOCHAR) return TRUE;
3967 if(wParam <= 0x000fffff)
3968 {
3969 if(wParam > 0xffff) /* convert to surrogates */
3970 {
3971 wParam -= 0x10000;
3972 ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
3973 ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
3974 } else {
3975 ME_Char(editor, wParam, 0, TRUE);
3976 }
3977 }
3978 return 0;
3979 }
3980 break;
3981 case EM_STOPGROUPTYPING:
3982 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3983 return 0;
3984 case EM_SCROLL: /* fall through */
3985 case WM_VSCROLL:
3986 {
3987 int origNPos;
3988 int lineHeight;
3989
3990 origNPos = ME_GetYScrollPos(editor);
3991 lineHeight = 24;
3992
3993 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3994 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3995 if (lineHeight <= 0) lineHeight = 24;
3996
3997 switch(LOWORD(wParam))
3998 {
3999 case SB_LINEUP:
4000 ME_ScrollUp(editor,lineHeight);
4001 break;
4002 case SB_LINEDOWN:
4003 ME_ScrollDown(editor,lineHeight);
4004 break;
4005 case SB_PAGEUP:
4006 ME_ScrollUp(editor,editor->sizeWindow.cy);
4007 break;
4008 case SB_PAGEDOWN:
4009 ME_ScrollDown(editor,editor->sizeWindow.cy);
4010 break;
4011 case SB_THUMBTRACK:
4012 case SB_THUMBPOSITION:
4013 {
4014 SCROLLINFO sbi;
4015 sbi.cbSize = sizeof(sbi);
4016 sbi.fMask = SIF_TRACKPOS;
4017 /* Try to get 32-bit track position value. */
4018 if (!GetScrollInfo(editor->hWnd, SB_VERT, &sbi))
4019 /* GetScrollInfo failed, settle for 16-bit value in wParam. */
4020 sbi.nTrackPos = HIWORD(wParam);
4021
4022 ME_ScrollAbs(editor, sbi.nTrackPos);
4023 break;
4024 }
4025 }
4026 if (msg == EM_SCROLL)
4027 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
4028 break;
4029 }
4030 case WM_MOUSEWHEEL:
4031 {
4032 int gcWheelDelta;
4033 UINT pulScrollLines;
4034
4035 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
4036 !ME_FilterEvent(editor, msg, &wParam, &lParam))
4037 return 0;
4038
4039 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4040 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
4041
4042 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4043 {
4044 /* FIXME follow the original */
4045 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
4046 }
4047 break;
4048 }
4049 case EM_GETRECT:
4050 {
4051 *((RECT *)lParam) = editor->rcFormat;
4052 if (editor->bDefaultFormatRect)
4053 ((RECT *)lParam)->left -= editor->selofs;
4054 return 0;
4055 }
4056 case EM_SETRECT:
4057 case EM_SETRECTNP:
4058 {
4059 if (lParam)
4060 {
4061 DWORD exstyle = GetWindowLongW(editor->hWnd, GWL_EXSTYLE);
4062 int border = (exstyle & WS_EX_CLIENTEDGE) ? 1 : 0;
4063 RECT clientRect;
4064 RECT *rc = (RECT *)lParam;
4065
4066 GetClientRect(editor->hWnd, &clientRect);
4067 if (wParam == 0)
4068 {
4069 editor->rcFormat.top = max(0, rc->top - border);
4070 editor->rcFormat.left = max(0, rc->left - border);
4071 editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
4072 editor->rcFormat.right = min(clientRect.right, rc->right + border);
4073 } else if (wParam == 1) {
4074 /* MSDN incorrectly says a wParam value of 1 causes the
4075 * lParam rect to be used as a relative offset,
4076 * however, the tests show it just prevents min/max bound
4077 * checking. */
4078 editor->rcFormat.top = rc->top - border;
4079 editor->rcFormat.left = rc->left - border;
4080 editor->rcFormat.bottom = rc->bottom;
4081 editor->rcFormat.right = rc->right + border;
4082 } else {
4083 return 0;
4084 }
4085 editor->bDefaultFormatRect = FALSE;
4086 }
4087 else
4088 {
4089 ME_SetDefaultFormatRect(editor);
4090 editor->bDefaultFormatRect = TRUE;
4091 }
4092 if (msg != EM_SETRECTNP)
4093 ME_RewrapRepaint(editor);
4094 return 0;
4095 }
4096 case EM_REQUESTRESIZE:
4097 ME_SendRequestResize(editor, TRUE);
4098 return 0;
4099 case WM_SETREDRAW:
4100 goto do_default;
4101 case WM_SIZE:
4102 {
4103 RECT clientRect;
4104
4105 GetClientRect(editor->hWnd, &clientRect);
4106 if (editor->bDefaultFormatRect) {
4107 ME_SetDefaultFormatRect(editor);
4108 } else {
4109 editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
4110 editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
4111 }
4112 editor->prevClientRect = clientRect;
4113 ME_RewrapRepaint(editor);
4114 goto do_default;
4115 }
4116 /* IME messages to make richedit controls IME aware */
4117 case WM_IME_SETCONTEXT:
4118 case WM_IME_CONTROL:
4119 case WM_IME_SELECT:
4120 case WM_IME_COMPOSITIONFULL:
4121 return 0;
4122 case WM_IME_STARTCOMPOSITION:
4123 {
4124 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
4125 ME_DeleteSelection(editor);
4126 ME_CommitUndo(editor);
4127 ME_UpdateRepaint(editor);
4128 return 0;
4129 }
4130 case WM_IME_COMPOSITION:
4131 {
4132 HIMC hIMC;
4133
4134 ME_Style *style = ME_GetInsertStyle(editor, 0);
4135 hIMC = ImmGetContext(editor->hWnd);
4136 ME_DeleteSelection(editor);
4137 ME_CommitUndo(editor);
4138 ME_SaveTempStyle(editor);
4139 if (lParam & GCS_RESULTSTR)
4140 {
4141 LPWSTR lpCompStr = NULL;
4142 DWORD dwBufLen;
4143
4144 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4145 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4146 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
4147 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4148 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4149 }
4150 else if (lParam & GCS_COMPSTR)
4151 {
4152 LPWSTR lpCompStr = NULL;
4153 DWORD dwBufLen;
4154
4155 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4156 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4157 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
4158 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4159
4160 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4161 ME_SetSelection(editor,editor->imeStartIndex,
4162 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4163 }
4164 ME_ReleaseStyle(style);
4165 ME_UpdateRepaint(editor);
4166 return 0;
4167 }
4168 case WM_IME_ENDCOMPOSITION:
4169 {
4170 ME_DeleteSelection(editor);
4171 editor->imeStartIndex=-1;
4172 return 0;
4173 }
4174 case EM_GETOLEINTERFACE:
4175 {
4176 LPVOID *ppvObj = (LPVOID*) lParam;
4177 return CreateIRichEditOle(editor, ppvObj);
4178 }
4179 case EM_GETPASSWORDCHAR:
4180 {
4181 return editor->cPasswordMask;
4182 }
4183 case EM_SETOLECALLBACK:
4184 if(editor->lpOleCallback)
4185 IUnknown_Release(editor->lpOleCallback);
4186 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
4187 if(editor->lpOleCallback)
4188 IUnknown_AddRef(editor->lpOleCallback);
4189 return TRUE;
4190 case EM_GETWORDBREAKPROC:
4191 return (LRESULT)editor->pfnWordBreak;
4192 case EM_SETWORDBREAKPROC:
4193 {
4194 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4195
4196 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4197 return (LRESULT)pfnOld;
4198 }
4199 case EM_SETTEXTMODE:
4200 {
4201 LRESULT ret;
4202 int mask = 0;
4203 int changes = 0;
4204 GETTEXTLENGTHEX how;
4205
4206 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
4207 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
4208 how.codepage = unicode ? 1200 : CP_ACP;
4209 ret = ME_GetTextLengthEx(editor, &how);
4210 if (!ret)
4211 {
4212 /*Check for valid wParam*/
4213 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
4214 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
4215 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
4216 return 1;
4217 else
4218 {
4219 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4220 {
4221 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
4222 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
4223 }
4224 /*FIXME: Currently no support for undo level and code page options*/
4225 editor->mode = (editor->mode & (~mask)) | changes;
4226 return 0;
4227 }
4228 }
4229 return ret;
4230 }
4231 case EM_SETPASSWORDCHAR:
4232 {
4233 editor->cPasswordMask = wParam;
4234 ME_RewrapRepaint(editor);
4235 return 0;
4236 }
4237 case EM_SETTARGETDEVICE:
4238 if (wParam == 0)
4239 {
4240 BOOL new = (lParam == 0);
4241 if (editor->bWordWrap != new)
4242 {
4243 editor->bWordWrap = new;
4244 ME_RewrapRepaint(editor);
4245 }
4246 }
4247 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
4248 break;
4249 default:
4250 do_default:
4251 *phresult = S_FALSE;
4252 break;
4253 }
4254 return 0L;
4255 }
4256
4257 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4258 {
4259 BOOL unicode = TRUE;
4260
4261 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
4262 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
4263 unicode = FALSE;
4264
4265 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
4266 }
4267
4268 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4269 {
4270 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
4271 }
4272
4273 /******************************************************************
4274 * RichEditANSIWndProc (RICHED20.10)
4275 */
4276 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4277 {
4278 return RichEditWndProcA(hWnd, msg, wParam, lParam);
4279 }
4280
4281 /******************************************************************
4282 * RichEdit10ANSIWndProc (RICHED20.9)
4283 */
4284 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
4285 {
4286 LRESULT result;
4287
4288 /* FIXME: this is NOT the same as 2.0 version */
4289 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
4290 if (msg == WM_NCCREATE)
4291 {
4292 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
4293
4294 TRACE("Emulating version 1.0 (hWnd=%p)\n", hWnd);
4295 editor->bEmulateVersion10 = TRUE;
4296 editor->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & ES_AUTOHSCROLL) ? FALSE : TRUE;
4297 editor->pBuffer->pLast->member.para.nCharOfs = 2;
4298 assert(editor->pBuffer->pLast->prev->type == diRun);
4299 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
4300 editor->pBuffer->pLast->prev->member.run.nLF = 1;
4301 }
4302 return result;
4303 }
4304
4305 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
4306 {
4307 HWND hWnd = editor->hWnd;
4308 SendMessageA(GetParent(hWnd), WM_COMMAND, MAKEWPARAM(GetWindowLongW(hWnd, GWLP_ID), nCode), (LPARAM)hWnd);
4309 }
4310
4311 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
4312 {
4313 int x,y;
4314 ME_Cursor tmpCursor;
4315 BOOL isExact;
4316 int nCharOfs; /* The start of the clicked text. Absolute character offset */
4317
4318 ME_Run *tmpRun;
4319
4320 ENLINK info;
4321 x = (short)LOWORD(lParam);
4322 y = (short)HIWORD(lParam);
4323 nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
4324 if (!isExact) return;
4325
4326 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
4327 tmpRun = &tmpCursor.pRun->member.run;
4328
4329 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
4330 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
4331 { /* The clicked run has CFE_LINK set */
4332 info.nmhdr.hwndFrom = editor->hWnd;
4333 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
4334 info.nmhdr.code = EN_LINK;
4335 info.msg = msg;
4336 info.wParam = wParam;
4337 info.lParam = lParam;
4338 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
4339 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
4340 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
4341 }
4342 }
4343
4344 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
4345 {
4346 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
4347 int i = 0;
4348
4349 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
4350 item = item->member.para.next_para;
4351 if (!item)
4352 return 0;
4353 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
4354 item = item->member.para.next_para;
4355 i++;
4356 }
4357 return i;
4358 }
4359
4360
4361 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
4362 {
4363 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
4364 int nWritten = 0;
4365 WCHAR *pStart = buffer;
4366
4367 if (!item) {
4368 *buffer = 0;
4369 return 0;
4370 }
4371
4372 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4373 if (editor->bEmulateVersion10) bCRLF = 0;
4374
4375 if (nStart)
4376 {
4377 int nLen = ME_StrLen(item->member.run.strText) - nStart;
4378 if (nLen > nChars)
4379 nLen = nChars;
4380 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
4381 nChars -= nLen;
4382 nWritten += nLen;
4383 buffer += nLen;
4384 if (!nChars) {
4385 *buffer = 0;
4386 return nWritten;
4387 }
4388 nStart = 0;
4389 item = ME_FindItemFwd(item, diRun);
4390 }
4391
4392 while(nChars && item)
4393 {
4394 int nLen = ME_StrLen(item->member.run.strText);
4395 if (item->member.run.nFlags & MERF_ENDPARA)
4396 nLen = item->member.run.nCR + item->member.run.nLF;
4397 if (nLen > nChars)
4398 nLen = nChars;
4399
4400 if (item->member.run.nFlags & MERF_ENDCELL &&
4401 item->member.run.nFlags & MERF_ENDPARA)
4402 {
4403 *buffer = '\t';
4404 }
4405 else if (item->member.run.nFlags & MERF_ENDPARA)
4406 {
4407 if (!ME_FindItemFwd(item, diRun))
4408 /* No '\r' is appended to the last paragraph. */
4409 nLen = 0;
4410 else if (bCRLF && nChars == 1) {
4411 nLen = 0;
4412 nChars = 0;
4413 } else {
4414 if (bCRLF)
4415 {
4416 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
4417 if (ME_GetParagraph(item)->member.para.nFlags & (MEPF_ROWSTART|MEPF_ROWEND))
4418 assert(nLen == 2);
4419 else
4420 assert(nLen == 1);
4421 *buffer++ = '\r';
4422 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
4423 if (nLen == 1)
4424 nWritten++;
4425 else
4426 buffer--;
4427 }
4428 else
4429 {
4430 int i, j;
4431
4432 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
4433 i = 0;
4434 while (nChars - i > 0 && i < item->member.run.nCR)
4435 {
4436 buffer[i] = '\r'; i++;
4437 }
4438 j = 0;
4439 while (nChars - i - j > 0 && j < item->member.run.nLF)
4440 {
4441 buffer[i+j] = '\n'; j++;
4442 }
4443 }
4444 }
4445 }
4446 else
4447 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
4448 nChars -= nLen;
4449 nWritten += nLen;
4450 buffer += nLen;
4451
4452 if (!nChars)
4453 {
4454 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4455 *buffer = 0;
4456 return nWritten;
4457 }
4458 item = ME_FindItemFwd(item, diRun);
4459 }
4460 *buffer = 0;
4461 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
4462 return nWritten;
4463 }
4464
4465 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
4466 {
4467 WNDCLASSW wcW;
4468 WNDCLASSA wcA;
4469
4470 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4471 wcW.lpfnWndProc = RichEditWndProcW;
4472 wcW.cbClsExtra = 0;
4473 wcW.cbWndExtra = sizeof(ME_TextEditor *);
4474 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
4475 wcW.hIcon = NULL;
4476 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4477 wcW.hbrBackground = GetStockObject(NULL_BRUSH);
4478 wcW.lpszMenuName = NULL;
4479
4480 if (is_version_nt())
4481 {
4482 wcW.lpszClassName = RichEdit20W;
4483 if (!RegisterClassW(&wcW)) return FALSE;
4484 wcW.lpszClassName = RichEdit50W;
4485 if (!RegisterClassW(&wcW)) return FALSE;
4486 }
4487 else
4488 {
4489 /* WNDCLASSA/W have the same layout */
4490 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
4491 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4492 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
4493 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
4494 }
4495
4496 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
4497 wcA.lpfnWndProc = RichEditWndProcA;
4498 wcA.cbClsExtra = 0;
4499 wcA.cbWndExtra = sizeof(ME_TextEditor *);
4500 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
4501 wcA.hIcon = NULL;
4502 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
4503 wcA.hbrBackground = GetStockObject(NULL_BRUSH);
4504 wcA.lpszMenuName = NULL;
4505 wcA.lpszClassName = "RichEdit20A";
4506 if (!RegisterClassA(&wcA)) return FALSE;
4507 wcA.lpszClassName = "RichEdit50A";
4508 if (!RegisterClassA(&wcA)) return FALSE;
4509
4510 return TRUE;
4511 }
4512
4513 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4514 /* FIXME: Not implemented */
4515 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4516 hWnd, msg, get_msg_name(msg), wParam, lParam);
4517 return DefWindowProcW(hWnd, msg, wParam, lParam);
4518 }
4519
4520 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
4521 /* FIXME: Not implemented */
4522 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
4523 hWnd, msg, get_msg_name(msg), wParam, lParam);
4524 return DefWindowProcW(hWnd, msg, wParam, lParam);
4525 }
4526
4527 /******************************************************************
4528 * REExtendedRegisterClass (RICHED20.8)
4529 *
4530 * FIXME undocumented
4531 * Need to check for errors and implement controls and callbacks
4532 */
4533 LRESULT WINAPI REExtendedRegisterClass(void)
4534 {
4535 WNDCLASSW wcW;
4536 UINT result;
4537
4538 FIXME("semi stub\n");
4539
4540 wcW.cbClsExtra = 0;
4541 wcW.cbWndExtra = 4;
4542 wcW.hInstance = NULL;
4543 wcW.hIcon = NULL;
4544 wcW.hCursor = NULL;
4545 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
4546 wcW.lpszMenuName = NULL;
4547
4548 if (!ME_ListBoxRegistered)
4549 {
4550 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
4551 wcW.lpfnWndProc = REListWndProc;
4552 wcW.lpszClassName = REListBox20W;
4553 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
4554 }
4555
4556 if (!ME_ComboBoxRegistered)
4557 {
4558 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
4559 wcW.lpfnWndProc = REComboWndProc;
4560 wcW.lpszClassName = REComboBox20W;
4561 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
4562 }
4563
4564 result = 0;
4565 if (ME_ListBoxRegistered)
4566 result += 1;
4567 if (ME_ComboBoxRegistered)
4568 result += 2;
4569
4570 return result;
4571 }
4572
4573 static BOOL isurlspecial(WCHAR c)
4574 {
4575 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
4576 return strchrW( special_chars, c ) != NULL;
4577 }
4578
4579 /**
4580 * This proc takes a selection, and scans it forward in order to select the span
4581 * of a possible URL candidate. A possible URL candidate must start with isalnum
4582 * or one of the following special characters: *|/\+%#@ and must consist entirely
4583 * of the characters allowed to start the URL, plus : (colon) which may occur
4584 * at most once, and not at either end.
4585 *
4586 * sel_max == -1 indicates scan to end of text.
4587 */
4588 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
4589 int * candidate_min, int * candidate_max)
4590 {
4591 ME_DisplayItem * item;
4592 ME_DisplayItem * para;
4593 int nStart;
4594 BOOL foundColon = FALSE;
4595 WCHAR lastAcceptedChar = '\0';
4596
4597 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
4598
4599 *candidate_min = *candidate_max = -1;
4600 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
4601 if (!item) return FALSE;
4602 TRACE("nStart = %d\n", nStart);
4603 para = ME_GetParagraph(item);
4604 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4605 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
4606 {
4607 ME_DisplayItem * next_item;
4608
4609 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
4610 /* Find start of candidate */
4611 if (*candidate_min == -1) {
4612 while (nStart < ME_StrLen(item->member.run.strText) &&
4613 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4614 isurlspecial(item->member.run.strText->szData[nStart]))) {
4615 nStart++;
4616 }
4617 if (nStart < ME_StrLen(item->member.run.strText) &&
4618 (isalnumW(item->member.run.strText->szData[nStart]) ||
4619 isurlspecial(item->member.run.strText->szData[nStart]))) {
4620 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4621 lastAcceptedChar = item->member.run.strText->szData[nStart];
4622 nStart++;
4623 }
4624 }
4625
4626 /* Find end of candidate */
4627 if (*candidate_min >= 0) {
4628 while (nStart < ME_StrLen(item->member.run.strText) &&
4629 (isalnumW(item->member.run.strText->szData[nStart]) ||
4630 isurlspecial(item->member.run.strText->szData[nStart]) ||
4631 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
4632 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
4633 lastAcceptedChar = item->member.run.strText->szData[nStart];
4634 nStart++;
4635 }
4636 if (nStart < ME_StrLen(item->member.run.strText) &&
4637 !(isalnumW(item->member.run.strText->szData[nStart]) ||
4638 isurlspecial(item->member.run.strText->szData[nStart]) )) {
4639 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4640 nStart++;
4641 if (lastAcceptedChar == ':') (*candidate_max)--;
4642 return TRUE;
4643 }
4644 }
4645 } else {
4646 /* End of paragraph: skip it if before candidate span, or terminates
4647 current active span */
4648 if (*candidate_min >= 0) {
4649 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
4650 if (lastAcceptedChar == ':') (*candidate_max)--;
4651 return TRUE;
4652 }
4653 }
4654
4655 /* Reaching this point means no span was found, so get next span */
4656 next_item = ME_FindItemFwd(item, diRun);
4657 if (!next_item) {
4658 if (*candidate_min >= 0) {
4659 /* There are no further runs, so take end of text as end of candidate */
4660 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4661 if (lastAcceptedChar == ':') (*candidate_max)--;
4662 return TRUE;
4663 }
4664 }
4665 item = next_item;
4666 para = ME_GetParagraph(item);
4667 nStart = 0;
4668 }
4669
4670 if (item) {
4671 if (*candidate_min >= 0) {
4672 /* There are no further runs, so take end of text as end of candidate */
4673 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
4674 if (lastAcceptedChar == ':') (*candidate_max)--;
4675 return TRUE;
4676 }
4677 }
4678 return FALSE;
4679 }
4680
4681 /**
4682 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4683 */
4684 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
4685 {
4686 struct prefix_s {
4687 const char *text;
4688 int length;
4689 } prefixes[12] = {
4690 /* Code below depends on these being in decreasing length order! */
4691 {"prospero:", 10},
4692 {"telnet:", 8},
4693 {"gopher:", 8},
4694 {"mailto:", 8},
4695 {"https:", 7},
4696 {"file:", 6},
4697 {"news:", 6},
4698 {"wais:", 6},
4699 {"nntp:", 6},
4700 {"http:", 5},
4701 {"www.", 5},
4702 {"ftp:", 5},
4703 };
4704 LPWSTR bufferW = NULL;
4705 WCHAR bufW[32];
4706 unsigned int i;
4707
4708 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4709 assert(sel_min <= sel_max);
4710 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
4711 {
4712 if (sel_max - sel_min < prefixes[i].length) continue;
4713 if (bufferW == NULL) {
4714 bufferW = heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
4715 }
4716 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, lstrlenA(prefixes[i].text)), 0);
4717 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
4718 if (!lstrcmpW(bufW, bufferW))
4719 {
4720 heap_free(bufferW);
4721 return TRUE;
4722 }
4723 }
4724 heap_free(bufferW);
4725 return FALSE;
4726 }
4727
4728 /**
4729 * This proc walks through the indicated selection and evaluates whether each
4730 * section identified by ME_FindNextURLCandidate and in-between sections have
4731 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4732 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4733 *
4734 * Returns TRUE if at least one section was modified.
4735 */
4736 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
4737 {
4738 BOOL modified = FALSE;
4739 int cMin, cMax;
4740
4741 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
4742 do
4743 {
4744 int beforeURL[2];
4745 int inURL[2];
4746 CHARFORMAT2W link;
4747
4748 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
4749 {
4750 /* Section before candidate is not an URL */
4751 beforeURL[0] = sel_min;
4752 beforeURL[1] = cMin;
4753
4754 if (ME_IsCandidateAnURL(editor, cMin, cMax))
4755 {
4756 inURL[0] = cMin; inURL[1] = cMax;
4757 }
4758 else
4759 {
4760 beforeURL[1] = cMax;
4761 inURL[0] = inURL[1] = -1;
4762 }
4763 sel_min = cMax;
4764 }
4765 else
4766 {
4767 /* No more candidates until end of selection */
4768 beforeURL[0] = sel_min;
4769 beforeURL[1] = sel_max;
4770 inURL[0] = inURL[1] = -1;
4771 sel_min = sel_max;
4772 }
4773
4774 if (beforeURL[0] < beforeURL[1])
4775 {
4776 /* CFE_LINK effect should be consistently unset */
4777 link.cbSize = sizeof(link);
4778 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
4779 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4780 {
4781 /* CFE_LINK must be unset from this range */
4782 memset(&link, 0, sizeof(CHARFORMAT2W));
4783 link.cbSize = sizeof(link);
4784 link.dwMask = CFM_LINK;
4785 link.dwEffects = 0;
4786 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
4787 modified = TRUE;
4788 }
4789 }
4790 if (inURL[0] < inURL[1])
4791 {
4792 /* CFE_LINK effect should be consistently set */
4793 link.cbSize = sizeof(link);
4794 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
4795 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4796 {
4797 /* CFE_LINK must be set on this range */
4798 memset(&link, 0, sizeof(CHARFORMAT2W));
4799 link.cbSize = sizeof(link);
4800 link.dwMask = CFM_LINK;
4801 link.dwEffects = CFE_LINK;
4802 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4803 modified = TRUE;
4804 }
4805 }
4806 } while (sel_min < sel_max);
4807 return modified;
4808 }
4809
4810 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4811 {
4812 ME_DisplayItem * startPara, * endPara;
4813 ME_DisplayItem * item;
4814 int dummy;
4815 int from, to;
4816
4817 ME_GetSelection(editor, &from, &to);
4818 if (from > to) from ^= to, to ^=from, from ^= to;
4819 startPara = NULL; endPara = NULL;
4820
4821 /* Find paragraph previous to the one that contains start cursor */
4822 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4823 if (item) {
4824 startPara = ME_FindItemBack(item, diParagraph);
4825 item = ME_FindItemBack(startPara, diParagraph);
4826 if (item) startPara = item;
4827 }
4828
4829 /* Find paragraph that contains end cursor */
4830 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4831 if (item) {
4832 endPara = ME_FindItemFwd(item, diParagraph);
4833 }
4834
4835 if (startPara && endPara) {
4836 ME_UpdateLinkAttribute(editor,
4837 startPara->member.para.nCharOfs,
4838 endPara->member.para.nCharOfs);
4839 } else if (startPara) {
4840 ME_UpdateLinkAttribute(editor,
4841 startPara->member.para.nCharOfs,
4842 -1);
4843 }
4844 }
useful hacks and other patches not (yet) suitable for mainline