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_SETLANGOPTIONS 2.0
103 - EM_SETLIMITTEXT
104 + EM_SETMODIFY (not sure if implementation is correct)
105 - EM_SETOLECALLBACK
106 + EM_SETOPTIONS (partially implemented)
107 - EM_SETPALETTE 2.0
108 + EM_SETPARAFORMAT
109 + EM_SETPASSWORDCHAR 2.0
110 - EM_SETPUNCTUATION 1.0asian
111 + EM_SETREADONLY no beep on modification attempt
112 + EM_SETRECT
113 + EM_SETRECTNP (EM_SETRECT without repainting)
114 + EM_SETSEL
115 + EM_SETSCROLLPOS 3.0
116 - EM_SETTABSTOPS 3.0
117 - EM_SETTARGETDEVICE (partial)
118 + EM_SETTEXTEX 3.0 (proper style?)
119 - EM_SETTEXTMODE 2.0
120 - EM_SETTYPOGRAPHYOPTIONS 3.0
121 + EM_SETUNDOLIMIT 2.0
122 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
123 - EM_SETWORDBREAKPROCEX
124 - EM_SETWORDWRAPMODE 1.0asian
125 + EM_SETZOOM 3.0
126 + EM_SHOWSCROLLBAR 2.0
127 + EM_STOPGROUPTYPING 2.0
128 + EM_STREAMIN
129 + EM_STREAMOUT
130 + EM_UNDO
131 + WM_CHAR
132 + WM_CLEAR
133 + WM_COPY
134 + WM_CUT
135 + WM_GETDLGCODE (the current implementation is incomplete)
136 + WM_GETTEXT (ANSI&Unicode)
137 + WM_GETTEXTLENGTH (ANSI version sucks)
138 + WM_PASTE
139 + WM_SETFONT
140 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
141 - WM_STYLECHANGING
142 - WM_STYLECHANGED (things like read-only flag)
143 - WM_UNICHAR
144
145 Notifications
146
147 * EN_CHANGE (sent from the wrong place)
148 - EN_CORRECTTEXT
149 - EN_DROPFILES
150 - EN_ERRSPACE
151 - EN_HSCROLL
152 - EN_IMECHANGE
153 + EN_KILLFOCUS
154 - EN_LINK
155 - EN_MAXTEXT
156 - EN_MSGFILTER
157 - EN_OLEOPFAILED
158 - EN_PROTECTED
159 + EN_REQUESTRESIZE
160 - EN_SAVECLIPBOARD
161 + EN_SELCHANGE
162 + EN_SETFOCUS
163 - EN_STOPNOUNDO
164 * EN_UPDATE (sent from the wrong place)
165 - EN_VSCROLL
166
167 Styles
168
169 - ES_AUTOHSCROLL
170 - ES_AUTOVSCROLL
171 - ES_CENTER
172 + ES_DISABLENOSCROLL (scrollbar is always visible)
173 - ES_EX_NOCALLOLEINIT
174 - ES_LEFT
175 - ES_MULTILINE (currently single line controls aren't supported)
176 - ES_NOIME
177 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
178 - ES_RIGHT
179 - ES_SAVESEL
180 - ES_SELFIME
181 - ES_SUNKEN
182 - ES_VERTICAL
183 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
184 - WS_SETFONT
185 - WS_HSCROLL
186 + WS_VSCROLL
187 */
188
189 /*
190 * RICHED20 TODO (incomplete):
191 *
192 * - messages/styles/notifications listed above
193 * - add remaining CHARFORMAT/PARAFORMAT fields
194 * - right/center align should strip spaces from the beginning
195 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
196 * - COM interface (looks like a major pain in the TODO list)
197 * - calculate heights of pictures (half-done)
198 * - horizontal scrolling (not even started)
199 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
200 * - find/replace
201 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
202 * - italic caret with italic fonts
203 * - IME
204 * - most notifications aren't sent at all (the most important ones are)
205 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
206 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
207 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
208 * - full justification
209 * - hyphenation
210 * - tables
211 * - ListBox & ComboBox not implemented
212 *
213 * Bugs that are probably fixed, but not so easy to verify:
214 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
215 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
216 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
217 * - caret shouldn't be displayed when selection isn't empty
218 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
219 * - undo for setting default format (done, might be buggy)
220 * - styles might be not released properly (looks like they work like charm, but who knows?
221 *
222 */
223
224 #include "editor.h"
225 #include "commdlg.h"
226 #include "winreg.h"
227 #define NO_SHLWAPI_STREAM
228 #include "shlwapi.h"
229 #include "rtf.h"
230 #include "imm.h"
231 #include "res.h"
232
233 #define STACK_SIZE_DEFAULT 100
234 #define STACK_SIZE_MAX 1000
235
236 #define TEXT_LIMIT_DEFAULT 32767
237
238 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
239
240 static BOOL ME_RegisterEditorClass(HINSTANCE);
241
242 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '', 'W', 0};
243 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '', 'W', 0};
244 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','','W', 0};
245 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','','W', 0};
246 static HCURSOR hLeft;
247
248 int me_debug = 0;
249 HANDLE me_heap = NULL;
250
251 static BOOL ME_ListBoxRegistered = FALSE;
252 static BOOL ME_ComboBoxRegistered = FALSE;
253
254 static inline int is_version_nt(void)
255 {
256 return !(GetVersion() & 0x80000000);
257 }
258
259 static ME_TextBuffer *ME_MakeText(void) {
260
261 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
262
263 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
264 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
265
266 p1->prev = NULL;
267 p1->next = p2;
268 p2->prev = p1;
269 p2->next = NULL;
270 p1->member.para.next_para = p2;
271 p2->member.para.prev_para = p1;
272 p2->member.para.nCharOfs = 0;
273
274 buf->pFirst = p1;
275 buf->pLast = p2;
276 buf->pCharStyle = NULL;
277
278 return buf;
279 }
280
281
282 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
283 {
284 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
285 WCHAR *pText;
286
287 TRACE("%08x %p\n", dwFormat, stream);
288
289 do {
290 long nWideChars = 0;
291
292 if (!stream->dwSize)
293 {
294 ME_StreamInFill(stream);
295 if (stream->editstream->dwError)
296 break;
297 if (!stream->dwSize)
298 break;
299 }
300
301 if (!(dwFormat & SF_UNICODE))
302 {
303 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
304 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
305 pText = wszText;
306 }
307 else
308 {
309 nWideChars = stream->dwSize >> 1;
310 pText = (WCHAR *)stream->buffer;
311 }
312
313 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
314 if (stream->dwSize == 0)
315 break;
316 stream->dwSize = 0;
317 } while(1);
318 ME_CommitUndo(editor);
319 ME_UpdateRepaint(editor);
320 return 0;
321 }
322
323 static void ME_RTFCharAttrHook(RTF_Info *info)
324 {
325 CHARFORMAT2W fmt;
326 fmt.cbSize = sizeof(fmt);
327 fmt.dwMask = 0;
328 fmt.dwEffects = 0;
329
330 switch(info->rtfMinor)
331 {
332 case rtfPlain:
333 /* FIXME add more flags once they're implemented */
334 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
335 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
336 fmt.yHeight = 12*20; /* 12pt */
337 fmt.wWeight = FW_NORMAL;
338 fmt.bUnderlineType = CFU_UNDERLINENONE;
339 break;
340 case rtfBold:
341 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
342 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
343 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
344 break;
345 case rtfItalic:
346 fmt.dwMask = CFM_ITALIC;
347 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
348 break;
349 case rtfUnderline:
350 fmt.dwMask = CFM_UNDERLINETYPE;
351 fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
352 break;
353 case rtfDotUnderline:
354 fmt.dwMask = CFM_UNDERLINETYPE;
355 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
356 break;
357 case rtfDbUnderline:
358 fmt.dwMask = CFM_UNDERLINETYPE;
359 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
360 break;
361 case rtfWordUnderline:
362 fmt.dwMask = CFM_UNDERLINETYPE;
363 fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
364 break;
365 case rtfNoUnderline:
366 fmt.dwMask = CFM_UNDERLINETYPE;
367 fmt.bUnderlineType = CFU_UNDERLINENONE;
368 break;
369 case rtfStrikeThru:
370 fmt.dwMask = CFM_STRIKEOUT;
371 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
372 break;
373 case rtfSubScript:
374 case rtfSuperScript:
375 case rtfSubScrShrink:
376 case rtfSuperScrShrink:
377 case rtfNoSuperSub:
378 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
379 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
380 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
381 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
382 break;
383 case rtfInvisible:
384 fmt.dwMask = CFM_HIDDEN;
385 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
386 break;
387 case rtfBackColor:
388 fmt.dwMask = CFM_BACKCOLOR;
389 fmt.dwEffects = 0;
390 if (info->rtfParam == 0)
391 fmt.dwEffects = CFE_AUTOBACKCOLOR;
392 else if (info->rtfParam != rtfNoParam)
393 {
394 RTFColor *c = RTFGetColor(info, info->rtfParam);
395 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
396 }
397 break;
398 case rtfForeColor:
399 fmt.dwMask = CFM_COLOR;
400 fmt.dwEffects = 0;
401 if (info->rtfParam == 0)
402 fmt.dwEffects = CFE_AUTOCOLOR;
403 else if (info->rtfParam != rtfNoParam)
404 {
405 RTFColor *c = RTFGetColor(info, info->rtfParam);
406 if (c)
407 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
408 else
409 fmt.crTextColor = 0;
410 }
411 break;
412 case rtfFontNum:
413 if (info->rtfParam != rtfNoParam)
414 {
415 RTFFont *f = RTFGetFont(info, info->rtfParam);
416 if (f)
417 {
418 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
419 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
420 fmt.bCharSet = f->rtfFCharSet;
421 fmt.dwMask = CFM_FACE | CFM_CHARSET;
422 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
423 }
424 }
425 break;
426 case rtfFontSize:
427 fmt.dwMask = CFM_SIZE;
428 if (info->rtfParam != rtfNoParam)
429 fmt.yHeight = info->rtfParam*10;
430 break;
431 }
432 if (fmt.dwMask) {
433 ME_Style *style2;
434 RTFFlushOutputBuffer(info);
435 /* FIXME too slow ? how come ? */
436 style2 = ME_ApplyStyle(info->style, &fmt);
437 ME_ReleaseStyle(info->style);
438 info->style = style2;
439 info->styleChanged = TRUE;
440 }
441 }
442
443 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
444 the same tags mean different things in different contexts */
445 static void ME_RTFParAttrHook(RTF_Info *info)
446 {
447 PARAFORMAT2 fmt;
448 fmt.cbSize = sizeof(fmt);
449 fmt.dwMask = 0;
450
451 switch(info->rtfMinor)
452 {
453 case rtfParDef: /* restores default paragraph attributes */
454 fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS | PFM_OFFSET |
455 PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE | PFM_STARTINDENT | PFM_TABLE;
456 /* TODO: numbering, shading */
457 fmt.wAlignment = PFA_LEFT;
458 fmt.cTabCount = 0;
459 fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
460 fmt.wBorderWidth = fmt.wBorders = 0;
461 fmt.wBorderSpace = 0;
462 fmt.bLineSpacingRule = 0;
463 fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
464 fmt.dyLineSpacing = 0;
465 fmt.wEffects &= ~PFE_TABLE;
466 break;
467 case rtfInTable:
468 {
469 ME_DisplayItem *para;
470
471 RTFFlushOutputBuffer(info);
472 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
473 assert(para->member.para.pCells);
474 fmt.dwMask |= PFM_TABLE;
475 fmt.wEffects |= PFE_TABLE;
476 break;
477 }
478 case rtfFirstIndent:
479 ME_GetSelectionParaFormat(info->editor, &fmt);
480 fmt.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
481 fmt.dxStartIndent += info->rtfParam;
482 fmt.dxOffset = -info->rtfParam;
483 break;
484 case rtfLeftIndent:
485 /* we assume rtfLeftIndent is always specified before rtfFirstIndent */
486 ME_GetSelectionParaFormat(info->editor, &fmt);
487 fmt.dwMask |= PFM_STARTINDENT;
488 fmt.dxStartIndent = info->rtfParam;
489 fmt.dxOffset = 0;
490 break;
491 case rtfRightIndent:
492 fmt.dwMask = PFM_RIGHTINDENT;
493 fmt.dxRightIndent = info->rtfParam;
494 break;
495 case rtfQuadLeft:
496 case rtfQuadJust:
497 fmt.dwMask = PFM_ALIGNMENT;
498 fmt.wAlignment = PFA_LEFT;
499 break;
500 case rtfQuadRight:
501 fmt.dwMask = PFM_ALIGNMENT;
502 fmt.wAlignment = PFA_RIGHT;
503 break;
504 case rtfQuadCenter:
505 fmt.dwMask = PFM_ALIGNMENT;
506 fmt.wAlignment = PFA_CENTER;
507 break;
508 case rtfTabPos:
509 ME_GetSelectionParaFormat(info->editor, &fmt);
510 if (!(fmt.dwMask & PFM_TABSTOPS))
511 {
512 fmt.dwMask |= PFM_TABSTOPS;
513 fmt.cTabCount = 0;
514 }
515 if (fmt.cTabCount < MAX_TAB_STOPS)
516 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
517 break;
518 case rtfKeep:
519 fmt.dwMask = PFM_KEEP;
520 fmt.wEffects = PFE_KEEP;
521 break;
522 case rtfNoWidowControl:
523 fmt.dwMask = PFM_NOWIDOWCONTROL;
524 fmt.wEffects = PFE_NOWIDOWCONTROL;
525 break;
526 case rtfKeepNext:
527 fmt.dwMask = PFM_KEEPNEXT;
528 fmt.wEffects = PFE_KEEPNEXT;
529 break;
530 case rtfSpaceAfter:
531 fmt.dwMask = PFM_SPACEAFTER;
532 fmt.dySpaceAfter = info->rtfParam;
533 break;
534 case rtfSpaceBefore:
535 fmt.dwMask = PFM_SPACEBEFORE;
536 fmt.dySpaceBefore = info->rtfParam;
537 break;
538 case rtfSpaceBetween:
539 fmt.dwMask = PFM_LINESPACING;
540 if ((int)info->rtfParam > 0)
541 {
542 fmt.dyLineSpacing = info->rtfParam;
543 fmt.bLineSpacingRule = 3;
544 }
545 else
546 {
547 fmt.dyLineSpacing = info->rtfParam;
548 fmt.bLineSpacingRule = 4;
549 }
550 case rtfSpaceMultiply:
551 fmt.dwMask = PFM_LINESPACING;
552 fmt.dyLineSpacing = info->rtfParam * 20;
553 fmt.bLineSpacingRule = 5;
554 break;
555 case rtfParBullet:
556 fmt.dwMask = PFM_NUMBERING;
557 fmt.wNumbering = PFN_BULLET;
558 break;
559 case rtfParSimple:
560 fmt.dwMask = PFM_NUMBERING;
561 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
562 break;
563 case rtfParNumDecimal:
564 fmt.dwMask = PFM_NUMBERING;
565 fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
566 break;
567 case rtfParNumIndent:
568 fmt.dwMask = PFM_NUMBERINGTAB;
569 fmt.wNumberingTab = info->rtfParam;
570 break;
571 case rtfParNumStartAt:
572 fmt.dwMask = PFM_NUMBERINGSTART;
573 fmt.wNumberingStart = info->rtfParam;
574 break;
575 case rtfBorderLeft:
576 ME_GetSelectionParaFormat(info->editor, &fmt);
577 if (!(fmt.dwMask & PFM_BORDER))
578 {
579 fmt.dwMask |= PFM_BORDER;
580 fmt.wBorderSpace = 0;
581 fmt.wBorderWidth = 1;
582 fmt.wBorders = 0;
583 }
584 fmt.wBorders |= 1;
585 break;
586 case rtfBorderRight:
587 ME_GetSelectionParaFormat(info->editor, &fmt);
588 if (!(fmt.dwMask & PFM_BORDER))
589 {
590 fmt.dwMask |= PFM_BORDER;
591 fmt.wBorderSpace = 0;
592 fmt.wBorderWidth = 1;
593 fmt.wBorders = 0;
594 }
595 fmt.wBorders |= 2;
596 break;
597 case rtfBorderTop:
598 ME_GetSelectionParaFormat(info->editor, &fmt);
599 if (!(fmt.dwMask & PFM_BORDER))
600 {
601 fmt.dwMask |= PFM_BORDER;
602 fmt.wBorderSpace = 0;
603 fmt.wBorderWidth = 1;
604 fmt.wBorders = 0;
605 }
606 fmt.wBorders |= 4;
607 break;
608 case rtfBorderBottom:
609 ME_GetSelectionParaFormat(info->editor, &fmt);
610 if (!(fmt.dwMask & PFM_BORDER))
611 {
612 fmt.dwMask |= PFM_BORDER;
613 fmt.wBorderSpace = 0;
614 fmt.wBorderWidth = 1;
615 fmt.wBorders = 0;
616 }
617 fmt.wBorders |= 8;
618 break;
619 case rtfBorderSingle:
620 ME_GetSelectionParaFormat(info->editor, &fmt);
621 /* we assume that borders have been created before (RTF spec) */
622 fmt.wBorders &= ~0x700;
623 fmt.wBorders |= 1 << 8;
624 break;
625 case rtfBorderThick:
626 ME_GetSelectionParaFormat(info->editor, &fmt);
627 /* we assume that borders have been created before (RTF spec) */
628 fmt.wBorders &= ~0x700;
629 fmt.wBorders |= 2 << 8;
630 break;
631 case rtfBorderShadow:
632 ME_GetSelectionParaFormat(info->editor, &fmt);
633 /* we assume that borders have been created before (RTF spec) */
634 fmt.wBorders &= ~0x700;
635 fmt.wBorders |= 10 << 8;
636 break;
637 case rtfBorderDouble:
638 ME_GetSelectionParaFormat(info->editor, &fmt);
639 /* we assume that borders have been created before (RTF spec) */
640 fmt.wBorders &= ~0x700;
641 fmt.wBorders |= 7 << 8;
642 break;
643 case rtfBorderDot:
644 ME_GetSelectionParaFormat(info->editor, &fmt);
645 /* we assume that borders have been created before (RTF spec) */
646 fmt.wBorders &= ~0x700;
647 fmt.wBorders |= 11 << 8;
648 break;
649 case rtfBorderWidth:
650 ME_GetSelectionParaFormat(info->editor, &fmt);
651 /* we assume that borders have been created before (RTF spec) */
652 fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
653 break;
654 case rtfBorderSpace:
655 ME_GetSelectionParaFormat(info->editor, &fmt);
656 /* we assume that borders have been created before (RTF spec) */
657 fmt.wBorderSpace = info->rtfParam;
658 break;
659 }
660 if (fmt.dwMask) {
661 RTFFlushOutputBuffer(info);
662 /* FIXME too slow ? how come ?*/
663 ME_SetSelectionParaFormat(info->editor, &fmt);
664 }
665 }
666
667 static void ME_RTFTblAttrHook(RTF_Info *info)
668 {
669 ME_DisplayItem *para;
670
671 switch (info->rtfMinor)
672 {
673 case rtfRowDef:
674 RTFFlushOutputBuffer(info);
675 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
676
677 /* Release possibly inherited cell definitions */
678 ME_DestroyTableCellList(para);
679
680 para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
681 para->member.para.pCells->nRightBoundary = 0;
682 para->member.para.pCells->next = NULL;
683 para->member.para.pLastCell = para->member.para.pCells;
684 break;
685 case rtfCellPos:
686 RTFFlushOutputBuffer(info);
687 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
688
689 if (para->member.para.pLastCell->nRightBoundary)
690 {
691 ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
692
693 pCell->next = NULL;
694 para->member.para.pLastCell->next = pCell;
695 para->member.para.pLastCell = pCell;
696 }
697 para->member.para.pLastCell->nRightBoundary = info->rtfParam;
698 break;
699 }
700 }
701
702 static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
703 const SIZEL* sz)
704 {
705 LPOLEOBJECT lpObject = NULL;
706 LPSTORAGE lpStorage = NULL;
707 LPOLECLIENTSITE lpClientSite = NULL;
708 LPDATAOBJECT lpDataObject = NULL;
709 LPOLECACHE lpOleCache = NULL;
710 STGMEDIUM stgm;
711 FORMATETC fm;
712 CLSID clsid;
713 BOOL ret = FALSE;
714 DWORD conn;
715
716 if (hemf)
717 {
718 stgm.tymed = TYMED_ENHMF;
719 stgm.u.hEnhMetaFile = hemf;
720 fm.cfFormat = CF_ENHMETAFILE;
721 }
722 else if (hbmp)
723 {
724 stgm.tymed = TYMED_GDI;
725 stgm.u.hBitmap = hbmp;
726 fm.cfFormat = CF_BITMAP;
727 }
728 stgm.pUnkForRelease = NULL;
729
730 fm.ptd = NULL;
731 fm.dwAspect = DVASPECT_CONTENT;
732 fm.lindex = -1;
733 fm.tymed = stgm.tymed;
734
735 if (!info->lpRichEditOle)
736 {
737 CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
738 }
739
740 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
741 #if 0
742 /* FIXME: enable it when rich-edit properly implements this method */
743 IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
744 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
745 #endif
746 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
747 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
748 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
749 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
750 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
751 {
752 REOBJECT reobject;
753
754 reobject.cbStruct = sizeof(reobject);
755 reobject.cp = REO_CP_SELECTION;
756 reobject.clsid = clsid;
757 reobject.poleobj = lpObject;
758 reobject.pstg = lpStorage;
759 reobject.polesite = lpClientSite;
760 /* convert from twips to .01 mm */
761 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
762 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
763 reobject.dvaspect = DVASPECT_CONTENT;
764 reobject.dwFlags = 0; /* FIXME */
765 reobject.dwUser = 0;
766
767 /* FIXME: could be simpler */
768 ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
769 }
770
771 if (lpObject) IOleObject_Release(lpObject);
772 if (lpClientSite) IOleClientSite_Release(lpClientSite);
773 if (lpStorage) IStorage_Release(lpStorage);
774 if (lpDataObject) IDataObject_Release(lpDataObject);
775 if (lpOleCache) IOleCache_Release(lpOleCache);
776
777 return ret;
778 }
779
780 static void ME_RTFReadPictGroup(RTF_Info *info)
781 {
782 SIZEL sz;
783 BYTE* buffer = NULL;
784 unsigned bufsz, bufidx;
785 BOOL flip;
786 BYTE val;
787 METAFILEPICT mfp;
788 HENHMETAFILE hemf;
789 HBITMAP hbmp;
790 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
791
792 RTFGetToken (info);
793 if (info->rtfClass == rtfEOF)
794 return;
795 mfp.mm = MM_TEXT;
796 /* fetch picture type */
797 if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
798 {
799 mfp.mm = info->rtfParam;
800 gfx = gfx_metafile;
801 }
802 else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
803 {
804 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
805 gfx = gfx_dib;
806 }
807 else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
808 {
809 gfx = gfx_enhmetafile;
810 }
811 else
812 {
813 FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
814 goto skip_group;
815 }
816 sz.cx = sz.cy = 0;
817 /* fetch picture attributes */
818 for (;;)
819 {
820 RTFGetToken (info);
821 if (info->rtfClass == rtfEOF)
822 return;
823 if (info->rtfClass == rtfText)
824 break;
825 if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
826 {
827 ERR("Expected picture attribute (%d %d)\n",
828 info->rtfClass, info->rtfMajor);
829 goto skip_group;
830 }
831 else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
832 {
833 if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
834 }
835 else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
836 {
837 if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
838 }
839 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
840 sz.cx = info->rtfParam;
841 else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
842 sz.cy = info->rtfParam;
843 else
844 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
845 }
846 /* fetch picture data */
847 bufsz = 1024;
848 bufidx = 0;
849 buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
850 val = info->rtfMajor;
851 for (flip = TRUE;; flip = !flip)
852 {
853 RTFGetToken (info);
854 if (info->rtfClass == rtfEOF)
855 {
856 HeapFree(GetProcessHeap(), 0, buffer);
857 return; /* Warn ?? */
858 }
859 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
860 break;
861 if (info->rtfClass != rtfText) goto skip_group;
862 if (flip)
863 {
864 if (bufidx >= bufsz &&
865 !(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
866 goto skip_group;
867 buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
868 }
869 else
870 val = info->rtfMajor;
871 }
872 if (flip) FIXME("wrong hex string\n");
873
874 switch (gfx)
875 {
876 case gfx_enhmetafile:
877 if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
878 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
879 break;
880 case gfx_metafile:
881 if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
882 ME_RTFInsertOleObject(info, hemf, NULL, &sz);
883 break;
884 case gfx_dib:
885 {
886 BITMAPINFO* bi = (BITMAPINFO*)buffer;
887 HDC hdc = GetDC(0);
888 unsigned nc = bi->bmiHeader.biClrUsed;
889
890 /* not quite right, especially for bitfields type of compression */
891 if (!nc && bi->bmiHeader.biBitCount <= 8)
892 nc = 1 << bi->bmiHeader.biBitCount;
893 if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
894 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
895 bi, DIB_RGB_COLORS)))
896 ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
897 ReleaseDC(0, hdc);
898 }
899 break;
900 default:
901 break;
902 }
903 HeapFree(GetProcessHeap(), 0, buffer);
904 RTFRouteToken (info); /* feed "}" back to router */
905 return;
906 skip_group:
907 HeapFree(GetProcessHeap(), 0, buffer);
908 RTFSkipGroup(info);
909 RTFRouteToken(info); /* feed "}" back to router */
910 }
911
912 /* for now, lookup the \result part and use it, whatever the object */
913 static void ME_RTFReadObjectGroup(RTF_Info *info)
914 {
915 for (;;)
916 {
917 RTFGetToken (info);
918 if (info->rtfClass == rtfEOF)
919 return;
920 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
921 break;
922 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
923 {
924 RTFGetToken (info);
925 if (info->rtfClass == rtfEOF)
926 return;
927 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
928 {
929 int level = 1;
930
931 while (RTFGetToken (info) != rtfEOF)
932 {
933 if (info->rtfClass == rtfGroup)
934 {
935 if (info->rtfMajor == rtfBeginGroup) level++;
936 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
937 }
938 RTFRouteToken(info);
939 }
940 }
941 else RTFSkipGroup(info);
942 continue;
943 }
944 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
945 {
946 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
947 return;
948 }
949 }
950 RTFRouteToken(info); /* feed "}" back to router */
951 }
952
953 static void ME_RTFReadHook(RTF_Info *info) {
954 switch(info->rtfClass)
955 {
956 case rtfGroup:
957 switch(info->rtfMajor)
958 {
959 case rtfBeginGroup:
960 if (info->stackTop < maxStack) {
961 info->stack[info->stackTop].fmt = info->style->fmt;
962 info->stack[info->stackTop].codePage = info->codePage;
963 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
964 }
965 info->stackTop++;
966 info->styleChanged = FALSE;
967 break;
968 case rtfEndGroup:
969 {
970 ME_Style *s;
971 RTFFlushOutputBuffer(info);
972 info->stackTop--;
973 if (info->stackTop<=0) {
974 info->rtfClass = rtfEOF;
975 return;
976 }
977 assert(info->stackTop >= 0);
978 if (info->styleChanged)
979 {
980 /* FIXME too slow ? how come ? */
981 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
982 ME_ReleaseStyle(info->style);
983 info->style = s;
984 info->codePage = info->stack[info->stackTop].codePage;
985 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
986 }
987 break;
988 }
989 }
990 break;
991 case rtfControl:
992 switch(info->rtfMajor)
993 {
994 case rtfCharAttr:
995 ME_RTFCharAttrHook(info);
996 break;
997 case rtfParAttr:
998 ME_RTFParAttrHook(info);
999 break;
1000 case rtfTblAttr:
1001 ME_RTFTblAttrHook(info);
1002 break;
1003 case rtfSpecialChar:
1004 if (info->rtfMinor == rtfCell)
1005 {
1006 RTFFlushOutputBuffer(info);
1007 ME_InsertTableCellFromCursor(info->editor, 0);
1008 }
1009 }
1010 break;
1011 }
1012 }
1013
1014 void
1015 ME_StreamInFill(ME_InStream *stream)
1016 {
1017 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1018 (BYTE *)stream->buffer,
1019 sizeof(stream->buffer),
1020 (LONG *)&stream->dwSize);
1021 stream->dwUsed = 0;
1022 }
1023
1024 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1025 {
1026 RTF_Info parser;
1027 ME_Style *style;
1028 int from, to, to2, nUndoMode;
1029 int nEventMask = editor->nEventMask;
1030 ME_InStream inStream;
1031 BOOL invalidRTF = FALSE;
1032
1033 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
1034 editor->nEventMask = 0;
1035
1036 ME_GetSelection(editor, &from, &to);
1037 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
1038 style = ME_GetSelectionInsertStyle(editor);
1039
1040 ME_InternalDeleteText(editor, from, to-from);
1041 }
1042 else {
1043 ME_DisplayItem *para_item;
1044 style = editor->pBuffer->pDefaultStyle;
1045 ME_AddRefStyle(style);
1046 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1047 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1048 from = to = 0;
1049 ME_ClearTempStyle(editor);
1050
1051 para_item = ME_GetParagraph(editor->pCursors[0].pRun);
1052 ME_SetDefaultParaFormat(para_item->member.para.pFmt);
1053 }
1054
1055
1056 /* Back up undo mode to a local variable */
1057 nUndoMode = editor->nUndoMode;
1058
1059 /* Only create an undo if SFF_SELECTION is set */
1060 if (!(format & SFF_SELECTION))
1061 editor->nUndoMode = umIgnore;
1062
1063 inStream.editstream = stream;
1064 inStream.editstream->dwError = 0;
1065 inStream.dwSize = 0;
1066 inStream.dwUsed = 0;
1067
1068 if (format & SF_RTF)
1069 {
1070 /* Check if it's really RTF, and if it is not, use plain text */
1071 ME_StreamInFill(&inStream);
1072 if (!inStream.editstream->dwError)
1073 {
1074 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1075 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1076 {
1077 invalidRTF = TRUE;
1078 inStream.editstream->dwError = -16;
1079 }
1080 }
1081 }
1082
1083 if (!invalidRTF && !inStream.editstream->dwError)
1084 {
1085 if (format & SF_RTF) {
1086 /* setup the RTF parser */
1087 memset(&parser, 0, sizeof parser);
1088 RTFSetEditStream(&parser, &inStream);
1089 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1090 parser.hwndEdit = editor->hWnd;
1091 parser.editor = editor;
1092 parser.style = style;
1093 WriterInit(&parser);
1094 RTFInit(&parser);
1095 RTFSetReadHook(&parser, ME_RTFReadHook);
1096 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1097 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1098 BeginFile(&parser);
1099
1100 /* do the parsing */
1101 RTFRead(&parser);
1102 RTFFlushOutputBuffer(&parser);
1103 RTFDestroy(&parser);
1104 if (parser.lpRichEditOle)
1105 IRichEditOle_Release(parser.lpRichEditOle);
1106
1107 if (!inStream.editstream->dwError && parser.stackTop > 0)
1108 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1109
1110 /* Remove last line break, as mandated by tests. This is not affected by
1111 CR/LF counters, since RTF streaming presents only \para tokens, which
1112 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1113 */
1114 if (stripLastCR) {
1115 int newfrom, newto;
1116 ME_GetSelection(editor, &newfrom, &newto);
1117 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1118 WCHAR lastchar[3] = {'\0', '\0'};
1119 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1120
1121 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1122 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1123 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize);
1124 }
1125 }
1126 }
1127
1128 style = parser.style;
1129 }
1130 else if (format & SF_TEXT)
1131 ME_StreamInText(editor, format, &inStream, style);
1132 else
1133 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1134 ME_GetSelection(editor, &to, &to2);
1135 /* put the cursor at the top */
1136 if (!(format & SFF_SELECTION))
1137 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1138 }
1139
1140 /* Restore saved undo mode */
1141 editor->nUndoMode = nUndoMode;
1142
1143 /* even if we didn't add an undo, we need to commit anything on the stack */
1144 ME_CommitUndo(editor);
1145
1146 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1147 if (!(format & SFF_SELECTION))
1148 ME_EmptyUndoStack(editor);
1149
1150 ME_ReleaseStyle(style);
1151 editor->nEventMask = nEventMask;
1152 ME_UpdateRepaint(editor);
1153 if (!(format & SFF_SELECTION)) {
1154 ME_ClearTempStyle(editor);
1155 }
1156 HideCaret(editor->hWnd);
1157 ME_MoveCaret(editor);
1158 ShowCaret(editor->hWnd);
1159 ME_SendSelChange(editor);
1160 ME_SendRequestResize(editor, FALSE);
1161
1162 return 0;
1163 }
1164
1165
1166 typedef struct tagME_RTFStringStreamStruct
1167 {
1168 char *string;
1169 int pos;
1170 int length;
1171 } ME_RTFStringStreamStruct;
1172
1173 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1174 {
1175 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1176 int count;
1177
1178 count = min(cb, pStruct->length - pStruct->pos);
1179 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1180 pStruct->pos += count;
1181 *pcb = count;
1182 return 0;
1183 }
1184
1185 static void
1186 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1187 {
1188 EDITSTREAM es;
1189 ME_RTFStringStreamStruct data;
1190
1191 data.string = string;
1192 data.length = strlen(string);
1193 data.pos = 0;
1194 es.dwCookie = (DWORD)&data;
1195 es.pfnCallback = ME_ReadFromRTFString;
1196 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1197 }
1198
1199
1200 ME_DisplayItem *
1201 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1202 {
1203 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1204 int runLength;
1205
1206 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1207 item = ME_FindItemFwd(item, diParagraph);
1208
1209 if (!item)
1210 return item;
1211
1212 nOffset -= item->member.para.nCharOfs;
1213 if (nItemType == diParagraph) {
1214 if (nItemOffset)
1215 *nItemOffset = nOffset;
1216 return item;
1217 }
1218
1219 do {
1220 item = ME_FindItemFwd(item, diRun);
1221 runLength = ME_StrLen(item->member.run.strText);
1222 if (item->member.run.nFlags & MERF_ENDPARA)
1223 runLength = item->member.run.nCR + item->member.run.nLF;
1224 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1225 if (item) {
1226 nOffset -= item->member.run.nCharOfs;
1227
1228 /* Special case: nOffset may not point exactly at the division between the
1229 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1230 into the next run, if one exists
1231 */
1232 if ( item->member.run.nFlags & MERF_ENDPARA
1233 && nOffset == item->member.run.nCR
1234 && item->member.run.nLF > 0) {
1235 ME_DisplayItem *nextItem;
1236 nextItem = ME_FindItemFwd(item, diRun);
1237 if (nextItem) {
1238 nOffset = 0;
1239 item = nextItem;
1240 }
1241 }
1242 if (nItemOffset)
1243 *nItemOffset = nOffset;
1244 }
1245 return item;
1246 }
1247
1248
1249 static int
1250 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1251 {
1252 const int nLen = lstrlenW(text);
1253 const int nTextLen = ME_GetTextLength(editor);
1254 int nStart, nEnd;
1255 int nMin, nMax;
1256 ME_DisplayItem *item;
1257 ME_DisplayItem *para;
1258 WCHAR wLastChar = ' ';
1259
1260 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1261 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1262
1263 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1264 FIXME("Flags 0x%08x not implemented\n",
1265 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1266
1267 nMin = chrg->cpMin;
1268 if (chrg->cpMax == -1)
1269 nMax = nTextLen;
1270 else
1271 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1272
1273 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1274 if (editor->bEmulateVersion10 && nMax == nTextLen)
1275 {
1276 flags |= FR_DOWN;
1277 }
1278
1279 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1280 if (editor->bEmulateVersion10 && nMax < nMin)
1281 {
1282 if (chrgText)
1283 {
1284 chrgText->cpMin = -1;
1285 chrgText->cpMax = -1;
1286 }
1287 return -1;
1288 }
1289
1290 /* when searching up, if cpMin < cpMax, then instead of searching
1291 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1292 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1293 * case, it is always bigger than cpMin.
1294 */
1295 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1296 {
1297 int nSwap = nMax;
1298
1299 nMax = nMin > nTextLen ? nTextLen : nMin;
1300 if (nMin < nSwap || chrg->cpMax == -1)
1301 nMin = 0;
1302 else
1303 nMin = nSwap;
1304 }
1305
1306 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1307 {
1308 if (chrgText)
1309 chrgText->cpMin = chrgText->cpMax = -1;
1310 return -1;
1311 }
1312
1313 if (flags & FR_DOWN) /* Forward search */
1314 {
1315 /* If possible, find the character before where the search starts */
1316 if ((flags & FR_WHOLEWORD) && nMin)
1317 {
1318 nStart = nMin - 1;
1319 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1320 if (!item)
1321 {
1322 if (chrgText)
1323 chrgText->cpMin = chrgText->cpMax = -1;
1324 return -1;
1325 }
1326 wLastChar = item->member.run.strText->szData[nStart];
1327 }
1328
1329 nStart = nMin;
1330 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1331 if (!item)
1332 {
1333 if (chrgText)
1334 chrgText->cpMin = chrgText->cpMax = -1;
1335 return -1;
1336 }
1337
1338 para = ME_GetParagraph(item);
1339 while (item
1340 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1341 {
1342 ME_DisplayItem *pCurItem = item;
1343 int nCurStart = nStart;
1344 int nMatched = 0;
1345
1346 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1347 {
1348 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1349 break;
1350
1351 nMatched++;
1352 if (nMatched == nLen)
1353 {
1354 ME_DisplayItem *pNextItem = pCurItem;
1355 int nNextStart = nCurStart;
1356 WCHAR wNextChar;
1357
1358 /* Check to see if next character is a whitespace */
1359 if (flags & FR_WHOLEWORD)
1360 {
1361 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1362 {
1363 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1364 nNextStart = -nMatched;
1365 }
1366
1367 if (pNextItem)
1368 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1369 else
1370 wNextChar = ' ';
1371
1372 if (isalnumW(wNextChar))
1373 break;
1374 }
1375
1376 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1377 if (chrgText)
1378 {
1379 chrgText->cpMin = nStart;
1380 chrgText->cpMax = nStart + nLen;
1381 }
1382 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1383 return nStart;
1384 }
1385 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1386 {
1387 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1388 para = ME_GetParagraph(pCurItem);
1389 nCurStart = -nMatched;
1390 }
1391 }
1392 if (pCurItem)
1393 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1394 else
1395 wLastChar = ' ';
1396
1397 nStart++;
1398 if (nStart == ME_StrLen(item->member.run.strText))
1399 {
1400 item = ME_FindItemFwd(item, diRun);
1401 para = ME_GetParagraph(item);
1402 nStart = 0;
1403 }
1404 }
1405 }
1406 else /* Backward search */
1407 {
1408 /* If possible, find the character after where the search ends */
1409 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1410 {
1411 nEnd = nMax + 1;
1412 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1413 if (!item)
1414 {
1415 if (chrgText)
1416 chrgText->cpMin = chrgText->cpMax = -1;
1417 return -1;
1418 }
1419 wLastChar = item->member.run.strText->szData[nEnd];
1420 }
1421
1422 nEnd = nMax;
1423 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1424 if (!item)
1425 {
1426 if (chrgText)
1427 chrgText->cpMin = chrgText->cpMax = -1;
1428 return -1;
1429 }
1430
1431 para = ME_GetParagraph(item);
1432
1433 while (item
1434 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1435 {
1436 ME_DisplayItem *pCurItem = item;
1437 int nCurEnd = nEnd;
1438 int nMatched = 0;
1439
1440 if (nCurEnd - nMatched == 0)
1441 {
1442 pCurItem = ME_FindItemBack(pCurItem, diRun);
1443 para = ME_GetParagraph(pCurItem);
1444 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1445 }
1446
1447 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1448 {
1449 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1450 break;
1451
1452 nMatched++;
1453 if (nMatched == nLen)
1454 {
1455 ME_DisplayItem *pPrevItem = pCurItem;
1456 int nPrevEnd = nCurEnd;
1457 WCHAR wPrevChar;
1458
1459 /* Check to see if previous character is a whitespace */
1460 if (flags & FR_WHOLEWORD)
1461 {
1462 if (nPrevEnd - nMatched == 0)
1463 {
1464 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1465 if (pPrevItem)
1466 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1467 }
1468
1469 if (pPrevItem)
1470 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1471 else
1472 wPrevChar = ' ';
1473
1474 if (isalnumW(wPrevChar))
1475 break;
1476 }
1477
1478 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1479 if (chrgText)
1480 {
1481 chrgText->cpMin = nStart;
1482 chrgText->cpMax = nStart + nLen;
1483 }
1484 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1485 return nStart;
1486 }
1487 if (nCurEnd - nMatched == 0)
1488 {
1489 pCurItem = ME_FindItemBack(pCurItem, diRun);
1490 /* Don't care about pCurItem becoming NULL here; it's already taken
1491 * care of in the exterior loop condition */
1492 para = ME_GetParagraph(pCurItem);
1493 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1494 }
1495 }
1496 if (pCurItem)
1497 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1498 else
1499 wLastChar = ' ';
1500
1501 nEnd--;
1502 if (nEnd < 0)
1503 {
1504 item = ME_FindItemBack(item, diRun);
1505 para = ME_GetParagraph(item);
1506 nEnd = ME_StrLen(item->member.run.strText);
1507 }
1508 }
1509 }
1510 TRACE("not found\n");
1511 if (chrgText)
1512 chrgText->cpMin = chrgText->cpMax = -1;
1513 return -1;
1514 }
1515
1516 /* helper to send a msg filter notification */
1517 static BOOL
1518 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1519 {
1520 MSGFILTER msgf;
1521
1522 msgf.nmhdr.hwndFrom = editor->hWnd;
1523 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1524 msgf.nmhdr.code = EN_MSGFILTER;
1525 msgf.msg = msg;
1526
1527 msgf.wParam = *wParam;
1528 msgf.lParam = *lParam;
1529 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1530 return FALSE;
1531 *wParam = msgf.wParam;
1532 *lParam = msgf.lParam;
1533 msgf.wParam = *wParam;
1534
1535 return TRUE;
1536 }
1537
1538 static BOOL
1539 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1540 {
1541 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1542 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1543
1544 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
1545 editor->nSelectionType = stPosition;
1546
1547 switch (nKey)
1548 {
1549 case VK_LEFT:
1550 case VK_RIGHT:
1551 case VK_HOME:
1552 case VK_END:
1553 editor->nUDArrowX = -1;
1554 /* fall through */
1555 case VK_UP:
1556 case VK_DOWN:
1557 case VK_PRIOR:
1558 case VK_NEXT:
1559 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
1560 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1561 return TRUE;
1562 case VK_BACK:
1563 case VK_DELETE:
1564 editor->nUDArrowX = -1;
1565 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1566 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1567 return FALSE;
1568 if (ME_IsSelection(editor))
1569 {
1570 ME_DeleteSelection(editor);
1571 ME_CommitUndo(editor);
1572 }
1573 else if (nKey == VK_DELETE)
1574 {
1575 /* Delete stops group typing.
1576 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
1577 ME_DeleteTextAtCursor(editor, 1, 1);
1578 ME_CommitUndo(editor);
1579 }
1580 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1581 {
1582 /* Backspace can be grouped for a single undo */
1583 ME_ContinueCoalescingTransaction(editor);
1584 ME_DeleteTextAtCursor(editor, 1, 1);
1585 ME_CommitCoalescingUndo(editor);
1586 }
1587 else
1588 return TRUE;
1589 ME_UpdateSelectionLinkAttribute(editor);
1590 ME_UpdateRepaint(editor);
1591 ME_SendRequestResize(editor, FALSE);
1592 return TRUE;
1593
1594 default:
1595 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
1596 editor->nUDArrowX = -1;
1597 if (ctrl_is_down)
1598 {
1599 if (nKey == 'W')
1600 {
1601 CHARFORMAT2W chf;
1602 char buf[2048];
1603 chf.cbSize = sizeof(chf);
1604
1605 ME_GetSelectionCharFormat(editor, &chf);
1606 ME_DumpStyleToBuf(&chf, buf);
1607 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1608 }
1609 if (nKey == 'Q')
1610 {
1611 ME_CheckCharOffsets(editor);
1612 }
1613 }
1614 }
1615 return FALSE;
1616 }
1617
1618 /* Process the message and calculate the new click count.
1619 *
1620 * returns: The click count if it is mouse down event, else returns 0. */
1621 static int ME_CalculateClickCount(HWND hWnd, UINT msg, WPARAM wParam,
1622 LPARAM lParam)
1623 {
1624 static int clickNum = 0;
1625 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
1626 return 0;
1627
1628 if ((msg == WM_LBUTTONDBLCLK) ||
1629 (msg == WM_RBUTTONDBLCLK) ||
1630 (msg == WM_MBUTTONDBLCLK) ||
1631 (msg == WM_XBUTTONDBLCLK))
1632 {
1633 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
1634 }
1635
1636 if ((msg == WM_LBUTTONDOWN) ||
1637 (msg == WM_RBUTTONDOWN) ||
1638 (msg == WM_MBUTTONDOWN) ||
1639 (msg == WM_XBUTTONDOWN))
1640 {
1641 static MSG prevClickMsg;
1642 MSG clickMsg;
1643 clickMsg.hwnd = hWnd;
1644 clickMsg.message = msg;
1645 clickMsg.wParam = wParam;
1646 clickMsg.lParam = lParam;
1647 clickMsg.time = GetMessageTime();
1648 clickMsg.pt.x = (short)LOWORD(lParam);
1649 clickMsg.pt.y = (short)HIWORD(lParam);
1650 if ((clickNum != 0) &&
1651 (clickMsg.message == prevClickMsg.message) &&
1652 (clickMsg.hwnd == prevClickMsg.hwnd) &&
1653 (clickMsg.wParam == prevClickMsg.wParam) &&
1654 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
1655 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
1656 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
1657 {
1658 clickNum++;
1659 } else {
1660 clickNum = 1;
1661 }
1662 prevClickMsg = clickMsg;
1663 } else {
1664 return 0;
1665 }
1666 return clickNum;
1667 }
1668
1669 static BOOL ME_SetCursor(ME_TextEditor *editor)
1670 {
1671 POINT pt;
1672 BOOL isExact;
1673 int offset;
1674 DWORD messagePos = GetMessagePos();
1675 pt.x = (short)LOWORD(messagePos);
1676 pt.y = (short)HIWORD(messagePos);
1677 ScreenToClient(editor->hWnd, &pt);
1678 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
1679 (pt.x < editor->selofs ||
1680 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
1681 {
1682 SetCursor(hLeft);
1683 return TRUE;
1684 }
1685 offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
1686 if (isExact)
1687 {
1688 if (editor->AutoURLDetect_bEnable)
1689 {
1690 ME_Cursor cursor;
1691 ME_Run *run;
1692 ME_CursorFromCharOfs(editor, offset, &cursor);
1693 run = &cursor.pRun->member.run;
1694 if (editor->AutoURLDetect_bEnable &&
1695 run->style->fmt.dwMask & CFM_LINK &&
1696 run->style->fmt.dwEffects & CFE_LINK)
1697 {
1698 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
1699 return TRUE;
1700 }
1701 }
1702 if (ME_IsSelection(editor))
1703 {
1704 int selStart, selEnd;
1705 ME_GetSelection(editor, &selStart, &selEnd);
1706 if (selStart <= offset && selEnd >= offset) {
1707 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
1708 return TRUE;
1709 }
1710 }
1711 }
1712 SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
1713 return TRUE;
1714 }
1715
1716 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1717 {
1718 CHARRANGE selrange;
1719 HMENU menu;
1720 int seltype = 0;
1721 if(!editor->lpOleCallback)
1722 return FALSE;
1723 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
1724 if(selrange.cpMin == selrange.cpMax)
1725 seltype |= SEL_EMPTY;
1726 else
1727 {
1728 /* FIXME: Handle objects */
1729 seltype |= SEL_TEXT;
1730 if(selrange.cpMax-selrange.cpMin > 1)
1731 seltype |= SEL_MULTICHAR;
1732 }
1733 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1734 {
1735 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1736 DestroyMenu(menu);
1737 }
1738 return TRUE;
1739 }
1740
1741 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1742 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1743 int i;
1744 ed->hWnd = hWnd;
1745 ed->bEmulateVersion10 = FALSE;
1746 ed->pBuffer = ME_MakeText();
1747 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1748 ME_MakeFirstParagraph(ed);
1749 /* The four cursors are for:
1750 * 0 - The position where the caret is shown
1751 * 1 - The anchored end of the selection (for normal selection)
1752 * 2 & 3 - The anchored start and end respectively for word, line,
1753 * or paragraph selection.
1754 */
1755 ed->nCursors = 4;
1756 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1757 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1758 ed->pCursors[0].nOffset = 0;
1759 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1760 ed->pCursors[1].nOffset = 0;
1761 ed->pCursors[2] = ed->pCursors[0];
1762 ed->pCursors[3] = ed->pCursors[1];
1763 ed->nLastTotalLength = ed->nTotalLength = 0;
1764 ed->nHeight = 0;
1765 ed->nUDArrowX = -1;
1766 ed->nSequence = 0;
1767 ed->rgbBackColor = -1;
1768 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1769 ed->bCaretAtEnd = FALSE;
1770 ed->nEventMask = 0;
1771 ed->nModifyStep = 0;
1772 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1773 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1774 ed->nUndoStackSize = 0;
1775 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1776 ed->nUndoMode = umAddToUndo;
1777 ed->nParagraphs = 1;
1778 ed->nLastSelStart = ed->nLastSelEnd = 0;
1779 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1780 ed->bRedraw = TRUE;
1781 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL) ? FALSE : TRUE;
1782 ed->bHideSelection = FALSE;
1783 ed->nInvalidOfs = -1;
1784 ed->pfnWordBreak = NULL;
1785 ed->lpOleCallback = NULL;
1786 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1787 ed->AutoURLDetect_bEnable = FALSE;
1788 ed->bHaveFocus = FALSE;
1789 for (i=0; i<HFONT_CACHE_SIZE; i++)
1790 {
1791 ed->pFontCache[i].nRefs = 0;
1792 ed->pFontCache[i].nAge = 0;
1793 ed->pFontCache[i].hFont = NULL;
1794 }
1795
1796 ME_CheckCharOffsets(ed);
1797 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
1798 ed->selofs = SELECTIONBAR_WIDTH;
1799 else
1800 ed->selofs = 0;
1801 ed->nSelectionType = stPosition;
1802
1803 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1804 ed->cPasswordMask = '*';
1805 else
1806 ed->cPasswordMask = 0;
1807
1808 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
1809
1810 /* Default vertical scrollbar information */
1811 ed->vert_si.cbSize = sizeof(SCROLLINFO);
1812 ed->vert_si.nMin = 0;
1813 ed->vert_si.nMax = 0;
1814 ed->vert_si.nPage = 0;
1815 ed->vert_si.nPos = 0;
1816
1817 return ed;
1818 }
1819
1820 typedef struct tagME_GlobalDestStruct
1821 {
1822 HGLOBAL hData;
1823 int nLength;
1824 } ME_GlobalDestStruct;
1825
1826 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1827 {
1828 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1829 int i;
1830 WORD *pSrc, *pDest;
1831
1832 cb = cb >> 1;
1833 pDest = (WORD *)lpBuff;
1834 pSrc = (WORD *)GlobalLock(pData->hData);
1835 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1836 pDest[i] = pSrc[pData->nLength+i];
1837 }
1838 pData->nLength += i;
1839 *pcb = 2*i;
1840 GlobalUnlock(pData->hData);
1841 return 0;
1842 }
1843
1844 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1845 {
1846 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1847 int i;
1848 BYTE *pSrc, *pDest;
1849
1850 pDest = lpBuff;
1851 pSrc = (BYTE *)GlobalLock(pData->hData);
1852 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1853 pDest[i] = pSrc[pData->nLength+i];
1854 }
1855 pData->nLength += i;
1856 *pcb = i;
1857 GlobalUnlock(pData->hData);
1858 return 0;
1859 }
1860
1861
1862 void ME_DestroyEditor(ME_TextEditor *editor)
1863 {
1864 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1865 ME_DisplayItem *p = pFirst, *pNext = NULL;
1866 int i;
1867
1868 ME_ClearTempStyle(editor);
1869 ME_EmptyUndoStack(editor);
1870 while(p) {
1871 pNext = p->next;
1872 ME_DestroyDisplayItem(p);
1873 p = pNext;
1874 }
1875 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1876 for (i=0; i<HFONT_CACHE_SIZE; i++)
1877 {
1878 if (editor->pFontCache[i].hFont)
1879 DeleteObject(editor->pFontCache[i].hFont);
1880 }
1881 if (editor->rgbBackColor != -1)
1882 DeleteObject(editor->hbrBackground);
1883 if(editor->lpOleCallback)
1884 IUnknown_Release(editor->lpOleCallback);
1885
1886 FREE_OBJ(editor->pBuffer);
1887 FREE_OBJ(editor->pCursors);
1888
1889 FREE_OBJ(editor);
1890 }
1891
1892 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1893 {
1894 TRACE("\n");
1895 switch (fdwReason)
1896 {
1897 case DLL_PROCESS_ATTACH:
1898 DisableThreadLibraryCalls(hinstDLL);
1899 me_heap = HeapCreate (0, 0x10000, 0);
1900 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1901 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
1902 LookupInit();
1903 break;
1904
1905 case DLL_PROCESS_DETACH:
1906 UnregisterClassW(RichEdit20W, 0);
1907 UnregisterClassW(RichEdit50W, 0);
1908 UnregisterClassA("RichEdit20A", 0);
1909 UnregisterClassA("RichEdit50A", 0);
1910 if (ME_ListBoxRegistered)
1911 UnregisterClassW(REListBox20W, 0);
1912 if (ME_ComboBoxRegistered)
1913 UnregisterClassW(REComboBox20W, 0);
1914 LookupCleanup();
1915 HeapDestroy (me_heap);
1916 me_heap = NULL;
1917 break;
1918 }
1919 return TRUE;
1920 }
1921
1922
1923 #define UNSUPPORTED_MSG(e) \
1924 case e: \
1925 FIXME(#e ": stub\n"); \
1926 return DefWindowProcW(hWnd, msg, wParam, lParam);
1927
1928 static const char * const edit_messages[] = {
1929 "EM_GETSEL",
1930 "EM_SETSEL",
1931 "EM_GETRECT",
1932 "EM_SETRECT",
1933 "EM_SETRECTNP",
1934 "EM_SCROLL",
1935 "EM_LINESCROLL",
1936 "EM_SCROLLCARET",
1937 "EM_GETMODIFY",
1938 "EM_SETMODIFY",
1939 "EM_GETLINECOUNT",
1940 "EM_LINEINDEX",
1941 "EM_SETHANDLE",
1942 "EM_GETHANDLE",
1943 "EM_GETTHUMB",
1944 "EM_UNKNOWN_BF",
1945 "EM_UNKNOWN_C0",
1946 "EM_LINELENGTH",
1947 "EM_REPLACESEL",
1948 "EM_UNKNOWN_C3",
1949 "EM_GETLINE",
1950 "EM_LIMITTEXT",
1951 "EM_CANUNDO",
1952 "EM_UNDO",
1953 "EM_FMTLINES",
1954 "EM_LINEFROMCHAR",
1955 "EM_UNKNOWN_CA",
1956 "EM_SETTABSTOPS",
1957 "EM_SETPASSWORDCHAR",
1958 "EM_EMPTYUNDOBUFFER",
1959 "EM_GETFIRSTVISIBLELINE",
1960 "EM_SETREADONLY",
1961 "EM_SETWORDBREAKPROC",
1962 "EM_GETWORDBREAKPROC",
1963 "EM_GETPASSWORDCHAR",
1964 "EM_SETMARGINS",
1965 "EM_GETMARGINS",
1966 "EM_GETLIMITTEXT",
1967 "EM_POSFROMCHAR",
1968 "EM_CHARFROMPOS"
1969 };
1970
1971 static const char * const richedit_messages[] = {
1972 "EM_CANPASTE",
1973 "EM_DISPLAYBAND",
1974 "EM_EXGETSEL",
1975 "EM_EXLIMITTEXT",
1976 "EM_EXLINEFROMCHAR",
1977 "EM_EXSETSEL",
1978 "EM_FINDTEXT",
1979 "EM_FORMATRANGE",
1980 "EM_GETCHARFORMAT",
1981 "EM_GETEVENTMASK",
1982 "EM_GETOLEINTERFACE",
1983 "EM_GETPARAFORMAT",
1984 "EM_GETSELTEXT",
1985 "EM_HIDESELECTION",
1986 "EM_PASTESPECIAL",
1987 "EM_REQUESTRESIZE",
1988 "EM_SELECTIONTYPE",
1989 "EM_SETBKGNDCOLOR",
1990 "EM_SETCHARFORMAT",
1991 "EM_SETEVENTMASK",
1992 "EM_SETOLECALLBACK",
1993 "EM_SETPARAFORMAT",
1994 "EM_SETTARGETDEVICE",
1995 "EM_STREAMIN",
1996 "EM_STREAMOUT",
1997 "EM_GETTEXTRANGE",
1998 "EM_FINDWORDBREAK",
1999 "EM_SETOPTIONS",
2000 "EM_GETOPTIONS",
2001 "EM_FINDTEXTEX",
2002 "EM_GETWORDBREAKPROCEX",
2003 "EM_SETWORDBREAKPROCEX",
2004 "EM_SETUNDOLIMIT",
2005 "EM_UNKNOWN_USER_83",
2006 "EM_REDO",
2007 "EM_CANREDO",
2008 "EM_GETUNDONAME",
2009 "EM_GETREDONAME",
2010 "EM_STOPGROUPTYPING",
2011 "EM_SETTEXTMODE",
2012 "EM_GETTEXTMODE",
2013 "EM_AUTOURLDETECT",
2014 "EM_GETAUTOURLDETECT",
2015 "EM_SETPALETTE",
2016 "EM_GETTEXTEX",
2017 "EM_GETTEXTLENGTHEX",
2018 "EM_SHOWSCROLLBAR",
2019 "EM_SETTEXTEX",
2020 "EM_UNKNOWN_USER_98",
2021 "EM_UNKNOWN_USER_99",
2022 "EM_SETPUNCTUATION",
2023 "EM_GETPUNCTUATION",
2024 "EM_SETWORDWRAPMODE",
2025 "EM_GETWORDWRAPMODE",
2026 "EM_SETIMECOLOR",
2027 "EM_GETIMECOLOR",
2028 "EM_SETIMEOPTIONS",
2029 "EM_GETIMEOPTIONS",
2030 "EM_CONVPOSITION",
2031 "EM_UNKNOWN_USER_109",
2032 "EM_UNKNOWN_USER_110",
2033 "EM_UNKNOWN_USER_111",
2034 "EM_UNKNOWN_USER_112",
2035 "EM_UNKNOWN_USER_113",
2036 "EM_UNKNOWN_USER_114",
2037 "EM_UNKNOWN_USER_115",
2038 "EM_UNKNOWN_USER_116",
2039 "EM_UNKNOWN_USER_117",
2040 "EM_UNKNOWN_USER_118",
2041 "EM_UNKNOWN_USER_119",
2042 "EM_SETLANGOPTIONS",
2043 "EM_GETLANGOPTIONS",
2044 "EM_GETIMECOMPMODE",
2045 "EM_FINDTEXTW",
2046 "EM_FINDTEXTEXW",
2047 "EM_RECONVERSION",
2048 "EM_SETIMEMODEBIAS",
2049 "EM_GETIMEMODEBIAS"
2050 };
2051
2052 static const char *
2053 get_msg_name(UINT msg)
2054 {
2055 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
2056 return edit_messages[msg - EM_GETSEL];
2057 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
2058 return richedit_messages[msg - EM_CANPASTE];
2059 return "";
2060 }
2061
2062 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
2063 LPARAM lParam, BOOL unicode)
2064 {
2065 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2066
2067 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
2068 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
2069
2070 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
2071 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
2072 return 0;
2073 }
2074
2075 switch(msg) {
2076
2077 UNSUPPORTED_MSG(EM_DISPLAYBAND)
2078 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
2079 UNSUPPORTED_MSG(EM_FMTLINES)
2080 UNSUPPORTED_MSG(EM_FORMATRANGE)
2081 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
2082 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
2083 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
2084 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
2085 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
2086 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
2087 UNSUPPORTED_MSG(EM_GETREDONAME)
2088 UNSUPPORTED_MSG(EM_GETTEXTMODE)
2089 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
2090 UNSUPPORTED_MSG(EM_GETUNDONAME)
2091 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
2092 UNSUPPORTED_MSG(EM_PASTESPECIAL)
2093 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
2094 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2095 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2096 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2097 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2098 UNSUPPORTED_MSG(EM_SETPALETTE)
2099 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2100 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2101 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2102 UNSUPPORTED_MSG(WM_STYLECHANGING)
2103 UNSUPPORTED_MSG(WM_STYLECHANGED)
2104 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
2105
2106 /* Messages specific to Richedit controls */
2107
2108 case EM_STREAMIN:
2109 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2110 case EM_STREAMOUT:
2111 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2112 case WM_GETDLGCODE:
2113 {
2114 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2115 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2116 {
2117 int vk = (int)((LPMSG)lParam)->wParam;
2118 /* if style says we want return key */
2119 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2120 {
2121 code |= DLGC_WANTMESSAGE;
2122 }
2123 /* we always handle ctrl-tab */
2124 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2125 {
2126 code |= DLGC_WANTMESSAGE;
2127 }
2128 }
2129 return code;
2130 }
2131 case WM_NCCREATE:
2132 {
2133 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2134 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2135 editor = ME_MakeEditor(hWnd);
2136 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2137 return TRUE;
2138 }
2139 case EM_EMPTYUNDOBUFFER:
2140 ME_EmptyUndoStack(editor);
2141 return 0;
2142 case EM_GETSEL:
2143 {
2144 /* Note: wParam/lParam can be NULL */
2145 UINT from, to;
2146 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2147 PUINT pto = lParam ? (PUINT)lParam : &to;
2148 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2149 if ((*pfrom|*pto) & 0xFFFF0000)
2150 return -1;
2151 return MAKELONG(*pfrom,*pto);
2152 }
2153 case EM_EXGETSEL:
2154 {
2155 CHARRANGE *pRange = (CHARRANGE *)lParam;
2156 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2157 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2158 return 0;
2159 }
2160 case EM_SETUNDOLIMIT:
2161 {
2162 if ((int)wParam < 0)
2163 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2164 else
2165 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2166 /* Setting a max stack size keeps wine from getting killed
2167 for hogging memory. Windows allocates all this memory at once, so
2168 no program would realistically set a value above our maximum. */
2169 return editor->nUndoLimit;
2170 }
2171 case EM_CANUNDO:
2172 return editor->pUndoStack != NULL;
2173 case EM_CANREDO:
2174 return editor->pRedoStack != NULL;
2175 case WM_UNDO: /* FIXME: actually not the same */
2176 case EM_UNDO:
2177 return ME_Undo(editor);
2178 case EM_REDO:
2179 return ME_Redo(editor);
2180 case EM_GETOPTIONS:
2181 {
2182 /* these flags are equivalent to the ES_* counterparts */
2183 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2184 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2185 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2186
2187 return settings;
2188 }
2189 case EM_SETOPTIONS:
2190 {
2191 /* these flags are equivalent to ES_* counterparts
2192 * ECO_READONLY is already implemented in the code, only requires
2193 * setting the bit to work
2194 */
2195 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2196 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2197 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2198 DWORD settings = mask & raw;
2199
2200 switch(wParam)
2201 {
2202 case ECOOP_SET:
2203 settings = lParam;
2204 break;
2205 case ECOOP_OR:
2206 settings |= lParam;
2207 break;
2208 case ECOOP_AND:
2209 settings &= lParam;
2210 break;
2211 case ECOOP_XOR:
2212 settings ^= lParam;
2213 }
2214 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2215
2216 if (settings & ECO_AUTOWORDSELECTION)
2217 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2218 if (settings & ECO_SELECTIONBAR)
2219 editor->selofs = SELECTIONBAR_WIDTH;
2220 else
2221 editor->selofs = 0;
2222 ME_WrapMarkedParagraphs(editor);
2223
2224 if (settings & ECO_VERTICAL)
2225 FIXME("ECO_VERTICAL not implemented yet!\n");
2226 if (settings & ECO_AUTOHSCROLL)
2227 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2228 if (settings & ECO_AUTOVSCROLL)
2229 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2230 if (settings & ECO_NOHIDESEL)
2231 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2232 if (settings & ECO_WANTRETURN)
2233 FIXME("ECO_WANTRETURN not implemented yet!\n");
2234
2235 return settings;
2236 }
2237 case EM_SETSEL:
2238 {
2239 ME_InvalidateSelection(editor);
2240 ME_SetSelection(editor, wParam, lParam);
2241 ME_InvalidateSelection(editor);
2242 HideCaret(editor->hWnd);
2243 ME_ShowCaret(editor);
2244 ME_SendSelChange(editor);
2245 return 0;
2246 }
2247 case EM_SETSCROLLPOS:
2248 {
2249 POINT *point = (POINT *)lParam;
2250 ME_ScrollAbs(editor, point->y);
2251 return 0;
2252 }
2253 case EM_AUTOURLDETECT:
2254 {
2255 if (wParam==1 || wParam ==0)
2256 {
2257 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2258 return 0;
2259 }
2260 return E_INVALIDARG;
2261 }
2262 case EM_GETAUTOURLDETECT:
2263 {
2264 return editor->AutoURLDetect_bEnable;
2265 }
2266 case EM_EXSETSEL:
2267 {
2268 int end;
2269 CHARRANGE range = *(CHARRANGE *)lParam;
2270
2271 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2272
2273 ME_InvalidateSelection(editor);
2274 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2275 ME_InvalidateSelection(editor);
2276 HideCaret(editor->hWnd);
2277 ME_ShowCaret(editor);
2278 ME_SendSelChange(editor);
2279
2280 return end;
2281 }
2282 case EM_SHOWSCROLLBAR:
2283 {
2284 ShowScrollBar(editor->hWnd, wParam, lParam);
2285 return 0;
2286 }
2287 case EM_SETTEXTEX:
2288 {
2289 LPWSTR wszText;
2290 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2291 size_t len;
2292 int from, to;
2293 ME_Style *style;
2294 int oldModify = editor->nModifyStep;
2295
2296 if (!pStruct) return 0;
2297
2298 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2299 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2300 pStruct->flags, pStruct->codepage);
2301
2302 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2303 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2304 len = wszText ? lstrlenW(wszText) : 0;
2305
2306 if (pStruct->flags & ST_SELECTION) {
2307 ME_GetSelection(editor, &from, &to);
2308 style = ME_GetSelectionInsertStyle(editor);
2309 ME_InternalDeleteText(editor, from, to - from);
2310 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2311 ME_StreamInRTFString(editor, 0, (char *)lParam);
2312 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2313 ME_ReleaseStyle(style);
2314
2315 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2316 }
2317 else {
2318 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2319 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2320 ME_StreamInRTFString(editor, 0, (char *)lParam);
2321 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2322 len = 1;
2323
2324 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2325 }
2326 ME_CommitUndo(editor);
2327 if (!(pStruct->flags & ST_KEEPUNDO))
2328 {
2329 editor->nModifyStep = oldModify;
2330 ME_EmptyUndoStack(editor);
2331 }
2332 ME_UpdateRepaint(editor);
2333 return len;
2334 }
2335 case EM_SETBKGNDCOLOR:
2336 {
2337 LRESULT lColor;
2338 if (editor->rgbBackColor != -1) {
2339 DeleteObject(editor->hbrBackground);
2340 lColor = editor->rgbBackColor;
2341 }
2342 else lColor = GetSysColor(COLOR_WINDOW);
2343
2344 if (wParam)
2345 {
2346 editor->rgbBackColor = -1;
2347 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2348 }
2349 else
2350 {
2351 editor->rgbBackColor = lParam;
2352 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2353 }
2354 if (editor->bRedraw)
2355 {
2356 InvalidateRect(hWnd, NULL, TRUE);
2357 UpdateWindow(hWnd);
2358 }
2359 return lColor;
2360 }
2361 case EM_GETMODIFY:
2362 return editor->nModifyStep == 0 ? 0 : -1;
2363 case EM_SETMODIFY:
2364 {
2365 if (wParam)
2366 editor->nModifyStep = 1;
2367 else
2368 editor->nModifyStep = 0;
2369
2370 return 0;
2371 }
2372 case EM_SETREADONLY:
2373 {
2374 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2375 if (wParam)
2376 nStyle |= ES_READONLY;
2377 else
2378 nStyle &= ~ES_READONLY;
2379 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2380 return 0;
2381 }
2382 case EM_SETEVENTMASK:
2383 {
2384 DWORD nOldMask = editor->nEventMask;
2385
2386 editor->nEventMask = lParam;
2387 return nOldMask;
2388 }
2389 case EM_GETEVENTMASK:
2390 return editor->nEventMask;
2391 case EM_SETCHARFORMAT:
2392 {
2393 CHARFORMAT2W buf, *p;
2394 BOOL bRepaint = TRUE;
2395 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2396 if (p == NULL) return 0;
2397 if (!wParam)
2398 ME_SetDefaultCharFormat(editor, p);
2399 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2400 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2401 return 0;
2402 } else if (wParam == SCF_ALL) {
2403 if (editor->mode & TM_PLAINTEXT)
2404 ME_SetDefaultCharFormat(editor, p);
2405 else {
2406 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2407 editor->nModifyStep = 1;
2408 }
2409 } else if (editor->mode & TM_PLAINTEXT) {
2410 return 0;
2411 } else {
2412 int from, to;
2413 ME_GetSelection(editor, &from, &to);
2414 bRepaint = (from != to);
2415 ME_SetSelectionCharFormat(editor, p);
2416 if (from != to) editor->nModifyStep = 1;
2417 }
2418 ME_CommitUndo(editor);
2419 if (bRepaint)
2420 ME_RewrapRepaint(editor);
2421 return 1;
2422 }
2423 case EM_GETCHARFORMAT:
2424 {
2425 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2426 if (dst->cbSize != sizeof(CHARFORMATA) &&
2427 dst->cbSize != sizeof(CHARFORMATW) &&
2428 dst->cbSize != sizeof(CHARFORMAT2A) &&
2429 dst->cbSize != sizeof(CHARFORMAT2W))
2430 return 0;
2431 tmp.cbSize = sizeof(tmp);
2432 if (!wParam)
2433 ME_GetDefaultCharFormat(editor, &tmp);
2434 else
2435 ME_GetSelectionCharFormat(editor, &tmp);
2436 ME_CopyToCFAny(dst, &tmp);
2437 return tmp.dwMask;
2438 }
2439 case EM_SETPARAFORMAT:
2440 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2441 ME_RewrapRepaint(editor);
2442 ME_CommitUndo(editor);
2443 return 0;
2444 case EM_GETPARAFORMAT:
2445 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2446 return 0;
2447 case EM_GETFIRSTVISIBLELINE:
2448 {
2449 ME_DisplayItem *p = editor->pBuffer->pFirst;
2450 int y = ME_GetYScrollPos(editor);
2451 int ypara = 0;
2452 int count = 0;
2453 int ystart, yend;
2454 while(p) {
2455 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
2456 if (p->type == diTextEnd)
2457 break;
2458 if (p->type == diParagraph) {
2459 ypara = p->member.para.nYPos;
2460 continue;
2461 }
2462 ystart = ypara + p->member.row.nYPos;
2463 yend = ystart + p->member.row.nHeight;
2464 if (y < yend) {
2465 break;
2466 }
2467 count++;
2468 }
2469 return count;
2470 }
2471 case EM_HIDESELECTION:
2472 {
2473 editor->bHideSelection = (wParam != 0);
2474 ME_InvalidateSelection(editor);
2475 return 0;
2476 }
2477 case EM_LINESCROLL:
2478 {
2479 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
2480 return TRUE; /* Should return false if a single line richedit control */
2481 }
2482 case WM_CLEAR:
2483 {
2484 int from, to;
2485 ME_GetSelection(editor, &from, &to);
2486 ME_InternalDeleteText(editor, from, to-from);
2487 ME_CommitUndo(editor);
2488 ME_UpdateRepaint(editor);
2489 return 0;
2490 }
2491 case EM_REPLACESEL:
2492 {
2493 int from, to;
2494 ME_Style *style;
2495 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
2496 size_t len = wszText ? lstrlenW(wszText) : 0;
2497 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
2498
2499 ME_GetSelection(editor, &from, &to);
2500 style = ME_GetSelectionInsertStyle(editor);
2501 ME_InternalDeleteText(editor, from, to-from);
2502 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2503 ME_ReleaseStyle(style);
2504 /* drop temporary style if line end */
2505 /*
2506 * FIXME question: does abc\n mean: put abc,
2507 * clear temp style, put \n? (would require a change)
2508 */
2509 if (len>0 && wszText[len-1] == '\n')
2510 ME_ClearTempStyle(editor);
2511 ME_EndToUnicode(unicode, wszText);
2512 ME_CommitUndo(editor);
2513 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2514 if (!wParam)
2515 ME_EmptyUndoStack(editor);
2516 ME_UpdateRepaint(editor);
2517 return len;
2518 }
2519 case EM_SCROLLCARET:
2520 {
2521 int top, bottom; /* row's edges relative to document top */
2522 int nPos;
2523 ME_DisplayItem *para, *row;
2524
2525 nPos = ME_GetYScrollPos(editor);
2526 row = ME_RowStart(editor->pCursors[0].pRun);
2527 para = ME_GetParagraph(row);
2528 top = para->member.para.nYPos + row->member.row.nYPos;
2529 bottom = top + row->member.row.nHeight;
2530
2531 if (top < nPos) /* caret above window */
2532 ME_ScrollAbs(editor, top);
2533 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
2534 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
2535 return 0;
2536 }
2537 case WM_SETFONT:
2538 {
2539 LOGFONTW lf;
2540 CHARFORMAT2W fmt;
2541 HDC hDC;
2542 BOOL bRepaint = LOWORD(lParam);
2543
2544 if (!wParam)
2545 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
2546 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
2547 hDC = GetDC(hWnd);
2548 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
2549 ReleaseDC(hWnd, hDC);
2550 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
2551 ME_SetDefaultCharFormat(editor, &fmt);
2552
2553 ME_CommitUndo(editor);
2554 if (bRepaint)
2555 ME_RewrapRepaint(editor);
2556 return 0;
2557 }
2558 case WM_SETTEXT:
2559 {
2560 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2561 if (lParam)
2562 {
2563 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
2564 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
2565 {
2566 /* Undocumented: WM_SETTEXT supports RTF text */
2567 ME_StreamInRTFString(editor, 0, (char *)lParam);
2568 }
2569 else
2570 {
2571 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
2572 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
2573 if (lstrlenW(wszText) > 0)
2574 {
2575 int len = -1;
2576
2577 /* uses default style! */
2578 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2579 {
2580 WCHAR * p;
2581
2582 p = wszText;
2583 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
2584 len = p - wszText;
2585 }
2586 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2587 }
2588 ME_EndToUnicode(unicode, wszText);
2589 }
2590 }
2591 else
2592 TRACE("WM_SETTEXT - NULL\n");
2593 if (editor->AutoURLDetect_bEnable)
2594 {
2595 ME_UpdateLinkAttribute(editor, 0, -1);
2596 }
2597 ME_SetSelection(editor, 0, 0);
2598 editor->nModifyStep = 0;
2599 ME_CommitUndo(editor);
2600 ME_EmptyUndoStack(editor);
2601 ME_UpdateRepaint(editor);
2602 return 1;
2603 }
2604 case EM_CANPASTE:
2605 {
2606 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2607 if (IsClipboardFormatAvailable(nRTFFormat))
2608 return TRUE;
2609 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2610 return TRUE;
2611 return FALSE;
2612 }
2613 case WM_PASTE:
2614 {
2615 DWORD dwFormat = 0;
2616 EDITSTREAM es;
2617 ME_GlobalDestStruct gds;
2618 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2619 UINT cf = 0;
2620
2621 if (IsClipboardFormatAvailable(nRTFFormat))
2622 cf = nRTFFormat, dwFormat = SF_RTF;
2623 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2624 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2625 else
2626 return 0;
2627
2628 if (!OpenClipboard(hWnd))
2629 return 0;
2630 gds.hData = GetClipboardData(cf);
2631 gds.nLength = 0;
2632 es.dwCookie = (DWORD)&gds;
2633 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2634 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2635
2636 CloseClipboard();
2637 return 0;
2638 }
2639 case WM_CUT:
2640 case WM_COPY:
2641 {
2642 LPDATAOBJECT dataObj = NULL;
2643 CHARRANGE range;
2644 HRESULT hr = S_OK;
2645
2646 if (editor->cPasswordMask)
2647 return 0; /* Copying or Cutting masked text isn't allowed */
2648
2649 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2650 if(editor->lpOleCallback)
2651 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2652 if(FAILED(hr) || !dataObj)
2653 hr = ME_GetDataObject(editor, &range, &dataObj);
2654 if(SUCCEEDED(hr)) {
2655 hr = OleSetClipboard(dataObj);
2656 IDataObject_Release(dataObj);
2657 }
2658 if (SUCCEEDED(hr) && msg == WM_CUT)
2659 {
2660 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
2661 ME_CommitUndo(editor);
2662 ME_UpdateRepaint(editor);
2663 }
2664 return 0;
2665 }
2666 case WM_GETTEXTLENGTH:
2667 {
2668 GETTEXTLENGTHEX how;
2669
2670 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
2671 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
2672 how.codepage = unicode ? 1200 : CP_ACP;
2673 return ME_GetTextLengthEx(editor, &how);
2674 }
2675 case EM_GETTEXTLENGTHEX:
2676 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2677 case WM_GETTEXT:
2678 {
2679 GETTEXTEX ex;
2680 LRESULT rc;
2681 LPSTR bufferA = NULL;
2682 LPWSTR bufferW = NULL;
2683
2684 if (unicode)
2685 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
2686 else
2687 bufferA = heap_alloc(wParam + 2);
2688
2689 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
2690 ex.flags = GT_USECRLF;
2691 ex.codepage = unicode ? 1200 : CP_ACP;
2692 ex.lpDefaultChar = NULL;
2693 ex.lpUsedDefChar = NULL;
2694 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2695
2696 if (unicode)
2697 {
2698 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
2699 if (lstrlenW(bufferW) >= wParam) rc = 0;
2700 }
2701 else
2702 {
2703 memcpy((LPSTR)lParam, bufferA, wParam);
2704 if (strlen(bufferA) >= wParam) rc = 0;
2705 }
2706 heap_free(bufferA);
2707 heap_free(bufferW);
2708 return rc;
2709 }
2710 case EM_GETTEXTEX:
2711 {
2712 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2713 int nStart, nCount; /* in chars */
2714
2715 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2716 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2717
2718 if (ex->flags & GT_SELECTION)
2719 {
2720 ME_GetSelection(editor, &nStart, &nCount);
2721 nCount -= nStart;
2722 }
2723 else
2724 {
2725 nStart = 0;
2726 nCount = 0x7fffffff;
2727 }
2728 if (ex->codepage == 1200)
2729 {
2730 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2731 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2732 }
2733 else
2734 {
2735 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2736 we can just take a bigger buffer? :)
2737 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
2738 occurs only in richedit 2.0 mode, in which line breaks have only one CR
2739 */
2740 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2741 LPWSTR buffer;
2742 DWORD buflen = ex->cb;
2743 LRESULT rc;
2744 DWORD flags = 0;
2745
2746 nCount = min(nCount, ex->cb - 1);
2747 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2748
2749 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2750 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
2751 if (rc) rc--; /* do not count 0 terminator */
2752
2753 heap_free(buffer);
2754 return rc;
2755 }
2756 }
2757 case EM_GETSELTEXT:
2758 {
2759 int from, to;
2760 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2761 ME_GetSelection(editor, &from, &to);
2762 tr.chrg.cpMin = from;
2763 tr.chrg.cpMax = to;
2764 tr.lpstrText = (WCHAR *)lParam;
2765 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2766 }
2767 case EM_GETSCROLLPOS:
2768 {
2769 POINT *point = (POINT *)lParam;
2770 point->x = 0; /* FIXME side scrolling not implemented */
2771 point->y = ME_GetYScrollPos(editor);
2772 return 1;
2773 }
2774 case EM_GETTEXTRANGE:
2775 {
2776 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2777 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2778 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2779 editor->bEmulateVersion10, ME_GetTextLength(editor));
2780 if (unicode)
2781 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
2782 else
2783 {
2784 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2785 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2786 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
2787 /* FIXME this is a potential security hole (buffer overrun)
2788 if you know more about wchar->mbyte conversion please explain
2789 */
2790 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2791 FREE_OBJ(p);
2792 return nChars;
2793 }
2794 }
2795 case EM_GETLINE:
2796 {
2797 ME_DisplayItem *run;
2798 const unsigned int nMaxChars = *(WORD *) lParam;
2799 unsigned int nCharsLeft = nMaxChars;
2800 char *dest = (char *) lParam;
2801 BOOL wroteNull = FALSE;
2802
2803 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2804 unicode ? "Unicode" : "Ansi");
2805
2806 run = ME_FindRowWithNumber(editor, wParam);
2807 if (run == NULL)
2808 return 0;
2809
2810 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2811 && !(run->member.run.nFlags & MERF_ENDPARA))
2812 {
2813 unsigned int nCopy;
2814 ME_String *strText;
2815 if (run->type != diRun)
2816 break;
2817 strText = run->member.run.strText;
2818 nCopy = min(nCharsLeft, strText->nLen);
2819
2820 if (unicode)
2821 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2822 else
2823 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2824 nCharsLeft, NULL, NULL);
2825 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2826 nCharsLeft -= nCopy;
2827 }
2828
2829 /* append line termination, space allowing */
2830 if (nCharsLeft > 0)
2831 {
2832 if (run && (run->member.run.nFlags & MERF_ENDPARA))
2833 {
2834 unsigned int i;
2835 /* Write as many \r as encoded in end-of-paragraph, space allowing */
2836 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
2837 {
2838 *((WCHAR *)dest) = '\r';
2839 dest += unicode ? sizeof(WCHAR) : 1;
2840 }
2841 /* Write as many \n as encoded in end-of-paragraph, space allowing */
2842 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
2843 {
2844 *((WCHAR *)dest) = '\n';
2845 dest += unicode ? sizeof(WCHAR) : 1;
2846 }
2847 }
2848 if (nCharsLeft > 0)
2849 {
2850 if (unicode)
2851 *((WCHAR *)dest) = '\0';
2852 else
2853 *dest = '\0';
2854 nCharsLeft--;
2855 wroteNull = TRUE;
2856 }
2857 }
2858
2859 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
2860 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
2861 }
2862 case EM_GETLINECOUNT:
2863 {
2864 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2865 int nRows = 0;
2866
2867 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
2868
2869 while (item != editor->pBuffer->pLast)
2870 {
2871 assert(item->type == diParagraph);
2872 prev_para = ME_FindItemBack(item, diRun);
2873 if (prev_para) {
2874 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
2875 }
2876 nRows += item->member.para.nRows;
2877 item = item->member.para.next_para;
2878 }
2879 last_para = ME_FindItemBack(item, diRun);
2880 assert(last_para);
2881 assert(last_para->member.run.nFlags & MERF_ENDPARA);
2882 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
2883 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
2884 {
2885 /* In 1.0 emulation, the last solitary \r at the very end of the text
2886 (if one exists) is NOT a line break.
2887 FIXME: this is an ugly hack. This should have a more regular model. */
2888 nRows--;
2889 }
2890
2891 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2892 return max(1, nRows);
2893 }
2894 case EM_LINEFROMCHAR:
2895 {
2896 if (wParam == -1)
2897 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2898 else
2899 return ME_RowNumberFromCharOfs(editor, wParam);
2900 }
2901 case EM_EXLINEFROMCHAR:
2902 {
2903 if (lParam == -1)
2904 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2905 else
2906 return ME_RowNumberFromCharOfs(editor, lParam);
2907 }
2908 case EM_LINEINDEX:
2909 {
2910 ME_DisplayItem *item, *para;
2911 int nCharOfs;
2912
2913 if (wParam == -1)
2914 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2915 else
2916 item = ME_FindRowWithNumber(editor, wParam);
2917 if (!item)
2918 return -1;
2919 para = ME_GetParagraph(item);
2920 item = ME_FindItemFwd(item, diRun);
2921 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2922 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2923 return nCharOfs;
2924 }
2925 case EM_LINELENGTH:
2926 {
2927 ME_DisplayItem *item, *item_end;
2928 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2929
2930 if (wParam > ME_GetTextLength(editor))
2931 return 0;
2932 if (wParam == -1)
2933 {
2934 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2935 return 0;
2936 }
2937 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2938 item = ME_RowStart(item);
2939 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2940 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2941 if (item_end->type == diStartRow)
2942 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2943 else
2944 {
2945 ME_DisplayItem *endPara;
2946
2947 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
2948 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
2949 endPara = ME_FindItemBack(endPara, diRun);
2950 assert(endPara);
2951 assert(endPara->type == diRun);
2952 assert(endPara->member.run.nFlags & MERF_ENDPARA);
2953 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
2954 }
2955 nChars = nNextLineOfs - nThisLineOfs;
2956 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2957 return nChars;
2958 }
2959 case EM_EXLIMITTEXT:
2960 {
2961 if ((int)lParam < 0)
2962 return 0;
2963 if (lParam == 0)
2964 editor->nTextLimit = 65536;
2965 else
2966 editor->nTextLimit = (int) lParam;
2967 return 0;
2968 }
2969 case EM_LIMITTEXT:
2970 {
2971 if (wParam == 0)
2972 editor->nTextLimit = 65536;
2973 else
2974 editor->nTextLimit = (int) wParam;
2975 return 0;
2976 }
2977 case EM_GETLIMITTEXT:
2978 {
2979 return editor->nTextLimit;
2980 }
2981 case EM_FINDTEXT:
2982 {
2983 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2984 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2985 WCHAR *tmp;
2986 LRESULT r;
2987
2988 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2989 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2990 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2991 FREE_OBJ( tmp );
2992 return r;
2993 }
2994 case EM_FINDTEXTEX:
2995 {
2996 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2997 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2998 WCHAR *tmp;
2999 LRESULT r;
3000
3001 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
3002 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
3003 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
3004 FREE_OBJ( tmp );
3005 return r;
3006 }
3007 case EM_FINDTEXTW:
3008 {
3009 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3010 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3011 }
3012 case EM_FINDTEXTEXW:
3013 {
3014 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3015 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3016 }
3017 case EM_GETZOOM:
3018 if (!wParam || !lParam)
3019 return FALSE;
3020 *(int *)wParam = editor->nZoomNumerator;
3021 *(int *)lParam = editor->nZoomDenominator;
3022 return TRUE;
3023 case EM_SETZOOM:
3024 return ME_SetZoom(editor, wParam, lParam);
3025 case EM_CHARFROMPOS:
3026 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
3027 case EM_POSFROMCHAR:
3028 {
3029 ME_DisplayItem *pRun;
3030 int nCharOfs, nOffset, nLength;
3031 POINTL pt = {0,0};
3032 SCROLLINFO si;
3033
3034 nCharOfs = wParam;
3035 /* detect which API version we're dealing with */
3036 if (wParam >= 0x40000)
3037 nCharOfs = lParam;
3038 nLength = ME_GetTextLength(editor);
3039
3040 if (nCharOfs < nLength) {
3041 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
3042 assert(pRun->type == diRun);
3043 pt.y = pRun->member.run.pt.y;
3044 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
3045 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
3046 } else {
3047 pt.x = 0;
3048 pt.y = editor->pBuffer->pLast->member.para.nYPos;
3049 }
3050 pt.x += editor->selofs;
3051
3052 si.cbSize = sizeof(si);
3053 si.fMask = SIF_POS;
3054 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
3055 si.cbSize = sizeof(si);
3056 si.fMask = SIF_POS;
3057 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
3058
3059 if (wParam >= 0x40000) {
3060 *(POINTL *)wParam = pt;
3061 }
3062 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3063 }
3064 case WM_CREATE:
3065 {
3066 SCROLLINFO si;
3067
3068 GetClientRect(hWnd, &editor->rcFormat);
3069 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
3070 { /* Squelch the default horizontal scrollbar it would make */
3071 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
3072 }
3073
3074 si.cbSize = sizeof(si);
3075 si.fMask = SIF_PAGE | SIF_RANGE;
3076 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_DISABLENOSCROLL)
3077 si.fMask |= SIF_DISABLENOSCROLL;
3078 si.nMax = (si.fMask & SIF_DISABLENOSCROLL) ? 1 : 0;
3079 si.nMin = 0;
3080 si.nPage = 0;
3081 SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
3082
3083 ME_CommitUndo(editor);
3084 ME_WrapMarkedParagraphs(editor);
3085 ME_MoveCaret(editor);
3086 return 0;
3087 }
3088 case WM_DESTROY:
3089 ME_DestroyEditor(editor);
3090 SetWindowLongPtrW(hWnd, 0, 0);
3091 return 0;
3092 case WM_SETCURSOR:
3093 {
3094 return ME_SetCursor(editor);
3095 }
3096 case WM_LBUTTONDBLCLK:
3097 case WM_LBUTTONDOWN:
3098 {
3099 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3100 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3101 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3102 return 0;
3103 SetFocus(hWnd);
3104 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3105 ME_CalculateClickCount(hWnd, msg, wParam, lParam));
3106 SetCapture(hWnd);
3107 ME_LinkNotify(editor,msg,wParam,lParam);
3108 if (!ME_SetCursor(editor)) goto do_default;
3109 break;
3110 }
3111 case WM_MOUSEMOVE:
3112 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3113 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3114 return 0;
3115 if (GetCapture() == hWnd)
3116 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3117 ME_LinkNotify(editor,msg,wParam,lParam);
3118 /* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
3119 if (GetCapture() == hWnd)
3120 ME_SetCursor(editor);
3121 break;
3122 case WM_LBUTTONUP:
3123 if (GetCapture() == hWnd)
3124 ReleaseCapture();
3125 if (editor->nSelectionType == stDocument)
3126 editor->nSelectionType = stPosition;
3127 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3128 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3129 return 0;
3130 else
3131 {
3132 ME_SetCursor(editor);
3133 ME_LinkNotify(editor,msg,wParam,lParam);
3134 }
3135 break;
3136 case WM_RBUTTONUP:
3137 case WM_RBUTTONDOWN:
3138 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3139 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3140 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3141 return 0;
3142 goto do_default;
3143 case WM_CONTEXTMENU:
3144 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3145 goto do_default;
3146 break;
3147 case WM_PAINT:
3148 if (editor->bRedraw)
3149 {
3150 HDC hDC;
3151 PAINTSTRUCT ps;
3152
3153 hDC = BeginPaint(hWnd, &ps);
3154 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3155 EndPaint(hWnd, &ps);
3156 }
3157 break;
3158 case WM_SETFOCUS:
3159 editor->bHaveFocus = TRUE;
3160 ME_ShowCaret(editor);
3161 ME_SendOldNotify(editor, EN_SETFOCUS);
3162 return 0;
3163 case WM_KILLFOCUS:
3164 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3165 editor->bHaveFocus = FALSE;
3166 ME_HideCaret(editor);
3167 ME_SendOldNotify(editor, EN_KILLFOCUS);
3168 return 0;
3169 case WM_ERASEBKGND:
3170 {
3171 if (editor->bRedraw)
3172 {
3173 HDC hDC = (HDC)wParam;
3174 RECT rc;
3175 if (GetUpdateRect(hWnd,&rc,TRUE))
3176 {
3177 FillRect(hDC, &rc, editor->hbrBackground);
3178 }
3179 }
3180 return 1;
3181 }
3182 case WM_COMMAND:
3183 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3184 return 0;
3185 case WM_KEYUP:
3186 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3187 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3188 return 0;
3189 goto do_default;
3190 case WM_KEYDOWN:
3191 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3192 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3193 return 0;
3194 if (ME_KeyDown(editor, LOWORD(wParam)))
3195 return 0;
3196 goto do_default;
3197 case WM_CHAR:
3198 {
3199 WCHAR wstr;
3200
3201 if (unicode)
3202 wstr = (WCHAR)wParam;
3203 else
3204 {
3205 CHAR charA = wParam;
3206 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3207 }
3208
3209 switch (wstr)
3210 {
3211 case 1: /* Ctrl-A */
3212 ME_SetSelection(editor, 0, -1);
3213 return 0;
3214 case 3: /* Ctrl-C */
3215 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
3216 return 0;
3217 }
3218
3219 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3220 MessageBeep(MB_ICONERROR);
3221 return 0; /* FIXME really 0 ? */
3222 }
3223
3224 switch (wstr)
3225 {
3226 case 22: /* Ctrl-V */
3227 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
3228 return 0;
3229 case 24: /* Ctrl-X */
3230 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
3231 return 0;
3232 case 25: /* Ctrl-Y */
3233 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
3234 return 0;
3235 case 26: /* Ctrl-Z */
3236 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
3237 return 0;
3238 }
3239 if (((unsigned)wstr)>=' '
3240 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3241 || wstr=='\t') {
3242 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3243 /* WM_CHAR is restricted to nTextLimit */
3244 int from, to;
3245 ME_GetSelection(editor, &from, &to);
3246 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3247 {
3248 ME_Style *style = ME_GetInsertStyle(editor, 0);
3249 ME_SaveTempStyle(editor);
3250 ME_ContinueCoalescingTransaction(editor);
3251 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3252 ME_InsertEndRowFromCursor(editor, 0);
3253 else
3254 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3255 ME_ReleaseStyle(style);
3256 ME_CommitCoalescingUndo(editor);
3257 SetCursor(NULL);
3258 }
3259
3260 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3261
3262 ME_UpdateRepaint(editor);
3263 }
3264 return 0;
3265 }
3266 case EM_STOPGROUPTYPING:
3267 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3268 return 0;
3269 case EM_SCROLL: /* fall through */
3270 case WM_VSCROLL:
3271 {
3272 int origNPos;
3273 int lineHeight;
3274
3275 origNPos = ME_GetYScrollPos(editor);
3276 lineHeight = 24;
3277
3278 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3279 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3280 if (lineHeight <= 0) lineHeight = 24;
3281
3282 switch(LOWORD(wParam))
3283 {
3284 case SB_LINEUP:
3285 ME_ScrollUp(editor,lineHeight);
3286 break;
3287 case SB_LINEDOWN:
3288 ME_ScrollDown(editor,lineHeight);
3289 break;
3290 case SB_PAGEUP:
3291 ME_ScrollUp(editor,editor->sizeWindow.cy);
3292 break;
3293 case SB_PAGEDOWN:
3294 ME_ScrollDown(editor,editor->sizeWindow.cy);
3295 break;
3296 case SB_THUMBTRACK:
3297 case SB_THUMBPOSITION:
3298 ME_ScrollAbs(editor,HIWORD(wParam));