?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
richedit: Fixed drag and shift selection for words and lines.
[wine/wine-kai.git] / dlls / riched20 / editor.c
blobde8902271c0b7142dddc6e93f42d69512e509dbd
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', '0', 'W', 0};
243 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
244 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
245 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','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;
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 RTFFlushOutputBuffer(info);
466 ME_GetParagraph(info->editor->pCursors[0].pRun)->member.para.bTable = FALSE;
467 break;
468 case rtfInTable:
469 {
470 ME_DisplayItem *para;
471
472 RTFFlushOutputBuffer(info);
473 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
474 assert(para->member.para.pCells);
475 para->member.para.bTable = TRUE;
476 return;
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 style = editor->pBuffer->pDefaultStyle;
1044 ME_AddRefStyle(style);
1045 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1046 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1047 from = to = 0;
1048 ME_ClearTempStyle(editor);
1049 /* FIXME restore default paragraph formatting ! */
1050 }
1051
1052
1053 /* Back up undo mode to a local variable */
1054 nUndoMode = editor->nUndoMode;
1055
1056 /* Only create an undo if SFF_SELECTION is set */
1057 if (!(format & SFF_SELECTION))
1058 editor->nUndoMode = umIgnore;
1059
1060 inStream.editstream = stream;
1061 inStream.editstream->dwError = 0;
1062 inStream.dwSize = 0;
1063 inStream.dwUsed = 0;
1064
1065 if (format & SF_RTF)
1066 {
1067 /* Check if it's really RTF, and if it is not, use plain text */
1068 ME_StreamInFill(&inStream);
1069 if (!inStream.editstream->dwError)
1070 {
1071 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1072 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1073 {
1074 invalidRTF = TRUE;
1075 inStream.editstream->dwError = -16;
1076 }
1077 }
1078 }
1079
1080 if (!invalidRTF && !inStream.editstream->dwError)
1081 {
1082 if (format & SF_RTF) {
1083 /* setup the RTF parser */
1084 memset(&parser, 0, sizeof parser);
1085 RTFSetEditStream(&parser, &inStream);
1086 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1087 parser.hwndEdit = editor->hWnd;
1088 parser.editor = editor;
1089 parser.style = style;
1090 WriterInit(&parser);
1091 RTFInit(&parser);
1092 RTFSetReadHook(&parser, ME_RTFReadHook);
1093 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1094 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1095 BeginFile(&parser);
1096
1097 /* do the parsing */
1098 RTFRead(&parser);
1099 RTFFlushOutputBuffer(&parser);
1100 RTFDestroy(&parser);
1101 if (parser.lpRichEditOle)
1102 IRichEditOle_Release(parser.lpRichEditOle);
1103
1104 if (!inStream.editstream->dwError && parser.stackTop > 0)
1105 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1106
1107 /* Remove last line break, as mandated by tests. This is not affected by
1108 CR/LF counters, since RTF streaming presents only \para tokens, which
1109 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1110 */
1111 if (stripLastCR) {
1112 int newfrom, newto;
1113 ME_GetSelection(editor, &newfrom, &newto);
1114 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1115 WCHAR lastchar[3] = {'\0', '\0'};
1116 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1117
1118 ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
1119 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1120 ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize);
1121 }
1122 }
1123 }
1124
1125 style = parser.style;
1126 }
1127 else if (format & SF_TEXT)
1128 ME_StreamInText(editor, format, &inStream, style);
1129 else
1130 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1131 ME_GetSelection(editor, &to, &to2);
1132 /* put the cursor at the top */
1133 if (!(format & SFF_SELECTION))
1134 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
1135 }
1136
1137 /* Restore saved undo mode */
1138 editor->nUndoMode = nUndoMode;
1139
1140 /* even if we didn't add an undo, we need to commit anything on the stack */
1141 ME_CommitUndo(editor);
1142
1143 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1144 if (!(format & SFF_SELECTION))
1145 ME_EmptyUndoStack(editor);
1146
1147 ME_ReleaseStyle(style);
1148 editor->nEventMask = nEventMask;
1149 ME_UpdateRepaint(editor);
1150 if (!(format & SFF_SELECTION)) {
1151 ME_ClearTempStyle(editor);
1152 }
1153 HideCaret(editor->hWnd);
1154 ME_MoveCaret(editor);
1155 ShowCaret(editor->hWnd);
1156 ME_SendSelChange(editor);
1157 ME_SendRequestResize(editor, FALSE);
1158
1159 return 0;
1160 }
1161
1162
1163 typedef struct tagME_RTFStringStreamStruct
1164 {
1165 char *string;
1166 int pos;
1167 int length;
1168 } ME_RTFStringStreamStruct;
1169
1170 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1171 {
1172 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1173 int count;
1174
1175 count = min(cb, pStruct->length - pStruct->pos);
1176 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1177 pStruct->pos += count;
1178 *pcb = count;
1179 return 0;
1180 }
1181
1182 static void
1183 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1184 {
1185 EDITSTREAM es;
1186 ME_RTFStringStreamStruct data;
1187
1188 data.string = string;
1189 data.length = strlen(string);
1190 data.pos = 0;
1191 es.dwCookie = (DWORD)&data;
1192 es.pfnCallback = ME_ReadFromRTFString;
1193 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
1194 }
1195
1196
1197 ME_DisplayItem *
1198 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
1199 {
1200 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1201 int runLength;
1202
1203 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
1204 item = ME_FindItemFwd(item, diParagraph);
1205
1206 if (!item)
1207 return item;
1208
1209 nOffset -= item->member.para.nCharOfs;
1210 if (nItemType == diParagraph) {
1211 if (nItemOffset)
1212 *nItemOffset = nOffset;
1213 return item;
1214 }
1215
1216 do {
1217 item = ME_FindItemFwd(item, diRun);
1218 runLength = ME_StrLen(item->member.run.strText);
1219 if (item->member.run.nFlags & MERF_ENDPARA)
1220 runLength = item->member.run.nCR + item->member.run.nLF;
1221 } while (item && (item->member.run.nCharOfs + runLength <= nOffset));
1222 if (item) {
1223 nOffset -= item->member.run.nCharOfs;
1224
1225 /* Special case: nOffset may not point exactly at the division between the
1226 \r and the \n in 1.0 emulation. If such a case happens, it is sent
1227 into the next run, if one exists
1228 */
1229 if ( item->member.run.nFlags & MERF_ENDPARA
1230 && nOffset == item->member.run.nCR
1231 && item->member.run.nLF > 0) {
1232 ME_DisplayItem *nextItem;
1233 nextItem = ME_FindItemFwd(item, diRun);
1234 if (nextItem) {
1235 nOffset = 0;
1236 item = nextItem;
1237 }
1238 }
1239 if (nItemOffset)
1240 *nItemOffset = nOffset;
1241 }
1242 return item;
1243 }
1244
1245
1246 static int
1247 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1248 {
1249 const int nLen = lstrlenW(text);
1250 const int nTextLen = ME_GetTextLength(editor);
1251 int nStart, nEnd;
1252 int nMin, nMax;
1253 ME_DisplayItem *item;
1254 ME_DisplayItem *para;
1255 WCHAR wLastChar = ' ';
1256
1257 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1258 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1259
1260 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1261 FIXME("Flags 0x%08x not implemented\n",
1262 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1263
1264 nMin = chrg->cpMin;
1265 if (chrg->cpMax == -1)
1266 nMax = nTextLen;
1267 else
1268 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1269
1270 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1271 if (editor->bEmulateVersion10 && nMax == nTextLen)
1272 {
1273 flags |= FR_DOWN;
1274 }
1275
1276 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1277 if (editor->bEmulateVersion10 && nMax < nMin)
1278 {
1279 if (chrgText)
1280 {
1281 chrgText->cpMin = -1;
1282 chrgText->cpMax = -1;
1283 }
1284 return -1;
1285 }
1286
1287 /* when searching up, if cpMin < cpMax, then instead of searching
1288 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1289 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1290 * case, it is always bigger than cpMin.
1291 */
1292 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1293 {
1294 int nSwap = nMax;
1295
1296 nMax = nMin > nTextLen ? nTextLen : nMin;
1297 if (nMin < nSwap || chrg->cpMax == -1)
1298 nMin = 0;
1299 else
1300 nMin = nSwap;
1301 }
1302
1303 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1304 {
1305 if (chrgText)
1306 chrgText->cpMin = chrgText->cpMax = -1;
1307 return -1;
1308 }
1309
1310 if (flags & FR_DOWN) /* Forward search */
1311 {
1312 /* If possible, find the character before where the search starts */
1313 if ((flags & FR_WHOLEWORD) && nMin)
1314 {
1315 nStart = nMin - 1;
1316 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1317 if (!item)
1318 {
1319 if (chrgText)
1320 chrgText->cpMin = chrgText->cpMax = -1;
1321 return -1;
1322 }
1323 wLastChar = item->member.run.strText->szData[nStart];
1324 }
1325
1326 nStart = nMin;
1327 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1328 if (!item)
1329 {
1330 if (chrgText)
1331 chrgText->cpMin = chrgText->cpMax = -1;
1332 return -1;
1333 }
1334
1335 para = ME_GetParagraph(item);
1336 while (item
1337 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
1338 {
1339 ME_DisplayItem *pCurItem = item;
1340 int nCurStart = nStart;
1341 int nMatched = 0;
1342
1343 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
1344 {
1345 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1346 break;
1347
1348 nMatched++;
1349 if (nMatched == nLen)
1350 {
1351 ME_DisplayItem *pNextItem = pCurItem;
1352 int nNextStart = nCurStart;
1353 WCHAR wNextChar;
1354
1355 /* Check to see if next character is a whitespace */
1356 if (flags & FR_WHOLEWORD)
1357 {
1358 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1359 {
1360 pNextItem = ME_FindItemFwd(pCurItem, diRun);
1361 nNextStart = -nMatched;
1362 }
1363
1364 if (pNextItem)
1365 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
1366 else
1367 wNextChar = ' ';
1368
1369 if (isalnumW(wNextChar))
1370 break;
1371 }
1372
1373 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
1374 if (chrgText)
1375 {
1376 chrgText->cpMin = nStart;
1377 chrgText->cpMax = nStart + nLen;
1378 }
1379 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1380 return nStart;
1381 }
1382 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
1383 {
1384 pCurItem = ME_FindItemFwd(pCurItem, diRun);
1385 para = ME_GetParagraph(pCurItem);
1386 nCurStart = -nMatched;
1387 }
1388 }
1389 if (pCurItem)
1390 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
1391 else
1392 wLastChar = ' ';
1393
1394 nStart++;
1395 if (nStart == ME_StrLen(item->member.run.strText))
1396 {
1397 item = ME_FindItemFwd(item, diRun);
1398 para = ME_GetParagraph(item);
1399 nStart = 0;
1400 }
1401 }
1402 }
1403 else /* Backward search */
1404 {
1405 /* If possible, find the character after where the search ends */
1406 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1407 {
1408 nEnd = nMax + 1;
1409 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1410 if (!item)
1411 {
1412 if (chrgText)
1413 chrgText->cpMin = chrgText->cpMax = -1;
1414 return -1;
1415 }
1416 wLastChar = item->member.run.strText->szData[nEnd];
1417 }
1418
1419 nEnd = nMax;
1420 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
1421 if (!item)
1422 {
1423 if (chrgText)
1424 chrgText->cpMin = chrgText->cpMax = -1;
1425 return -1;
1426 }
1427
1428 para = ME_GetParagraph(item);
1429
1430 while (item
1431 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
1432 {
1433 ME_DisplayItem *pCurItem = item;
1434 int nCurEnd = nEnd;
1435 int nMatched = 0;
1436
1437 if (nCurEnd - nMatched == 0)
1438 {
1439 pCurItem = ME_FindItemBack(pCurItem, diRun);
1440 para = ME_GetParagraph(pCurItem);
1441 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1442 }
1443
1444 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
1445 {
1446 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
1447 break;
1448
1449 nMatched++;
1450 if (nMatched == nLen)
1451 {
1452 ME_DisplayItem *pPrevItem = pCurItem;
1453 int nPrevEnd = nCurEnd;
1454 WCHAR wPrevChar;
1455
1456 /* Check to see if previous character is a whitespace */
1457 if (flags & FR_WHOLEWORD)
1458 {
1459 if (nPrevEnd - nMatched == 0)
1460 {
1461 pPrevItem = ME_FindItemBack(pCurItem, diRun);
1462 if (pPrevItem)
1463 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1464 }
1465
1466 if (pPrevItem)
1467 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1468 else
1469 wPrevChar = ' ';
1470
1471 if (isalnumW(wPrevChar))
1472 break;
1473 }
1474
1475 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1476 if (chrgText)
1477 {
1478 chrgText->cpMin = nStart;
1479 chrgText->cpMax = nStart + nLen;
1480 }
1481 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1482 return nStart;
1483 }
1484 if (nCurEnd - nMatched == 0)
1485 {
1486 pCurItem = ME_FindItemBack(pCurItem, diRun);
1487 /* Don't care about pCurItem becoming NULL here; it's already taken
1488 * care of in the exterior loop condition */
1489 para = ME_GetParagraph(pCurItem);
1490 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1491 }
1492 }
1493 if (pCurItem)
1494 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1495 else
1496 wLastChar = ' ';
1497
1498 nEnd--;
1499 if (nEnd < 0)
1500 {
1501 item = ME_FindItemBack(item, diRun);
1502 para = ME_GetParagraph(item);
1503 nEnd = ME_StrLen(item->member.run.strText);
1504 }
1505 }
1506 }
1507 TRACE("not found\n");
1508 if (chrgText)
1509 chrgText->cpMin = chrgText->cpMax = -1;
1510 return -1;
1511 }
1512
1513 /* helper to send a msg filter notification */
1514 static BOOL
1515 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1516 {
1517 MSGFILTER msgf;
1518
1519 msgf.nmhdr.hwndFrom = editor->hWnd;
1520 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1521 msgf.nmhdr.code = EN_MSGFILTER;
1522 msgf.msg = msg;
1523
1524 msgf.wParam = *wParam;
1525 msgf.lParam = *lParam;
1526 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1527 return FALSE;
1528 *wParam = msgf.wParam;
1529 *lParam = msgf.lParam;
1530 msgf.wParam = *wParam;
1531
1532 return TRUE;
1533 }
1534
1535 static BOOL
1536 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1537 {
1538 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1539 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1540
1541 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
1542 editor->nSelectionType = stPosition;
1543
1544 switch (nKey)
1545 {
1546 case VK_LEFT:
1547 case VK_RIGHT:
1548 case VK_HOME:
1549 case VK_END:
1550 editor->nUDArrowX = -1;
1551 /* fall through */
1552 case VK_UP:
1553 case VK_DOWN:
1554 case VK_PRIOR:
1555 case VK_NEXT:
1556 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
1557 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1558 return TRUE;
1559 case VK_BACK:
1560 case VK_DELETE:
1561 editor->nUDArrowX = -1;
1562 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1563 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1564 return FALSE;
1565 if (ME_IsSelection(editor))
1566 {
1567 ME_DeleteSelection(editor);
1568 ME_CommitUndo(editor);
1569 }
1570 else if (nKey == VK_DELETE)
1571 {
1572 /* Delete stops group typing.
1573 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
1574 ME_DeleteTextAtCursor(editor, 1, 1);
1575 ME_CommitUndo(editor);
1576 }
1577 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1578 {
1579 /* Backspace can be grouped for a single undo */
1580 ME_ContinueCoalescingTransaction(editor);
1581 ME_DeleteTextAtCursor(editor, 1, 1);
1582 ME_CommitCoalescingUndo(editor);
1583 }
1584 else
1585 return TRUE;
1586 ME_UpdateSelectionLinkAttribute(editor);
1587 ME_UpdateRepaint(editor);
1588 ME_SendRequestResize(editor, FALSE);
1589 return TRUE;
1590
1591 default:
1592 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
1593 editor->nUDArrowX = -1;
1594 if (ctrl_is_down)
1595 {
1596 if (nKey == 'W')
1597 {
1598 CHARFORMAT2W chf;
1599 char buf[2048];
1600 chf.cbSize = sizeof(chf);
1601
1602 ME_GetSelectionCharFormat(editor, &chf);
1603 ME_DumpStyleToBuf(&chf, buf);
1604 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1605 }
1606 if (nKey == 'Q')
1607 {
1608 ME_CheckCharOffsets(editor);
1609 }
1610 }
1611 }
1612 return FALSE;
1613 }
1614
1615 static BOOL ME_SetCursor(ME_TextEditor *editor, int x)
1616 {
1617 if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
1618 (x < editor->selofs ||
1619 (editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
1620 {
1621 SetCursor(hLeft);
1622 return TRUE;
1623 }
1624 return FALSE;
1625 }
1626
1627 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1628 {
1629 CHARRANGE selrange;
1630 HMENU menu;
1631 int seltype = 0;
1632 if(!editor->lpOleCallback)
1633 return FALSE;
1634 ME_GetSelection(editor, &selrange.cpMin, &selrange.cpMax);
1635 if(selrange.cpMin == selrange.cpMax)
1636 seltype |= SEL_EMPTY;
1637 else
1638 {
1639 /* FIXME: Handle objects */
1640 seltype |= SEL_TEXT;
1641 if(selrange.cpMax-selrange.cpMin > 1)
1642 seltype |= SEL_MULTICHAR;
1643 }
1644 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1645 {
1646 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1647 DestroyMenu(menu);
1648 }
1649 return TRUE;
1650 }
1651
1652 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1653 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1654 int i;
1655 ed->hWnd = hWnd;
1656 ed->bEmulateVersion10 = FALSE;
1657 ed->pBuffer = ME_MakeText();
1658 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1659 ME_MakeFirstParagraph(ed);
1660 ed->bCaretShown = FALSE;
1661 /* The four cursors are for:
1662 * 0 - The position where the caret is shown
1663 * 1 - The anchored end of the selection (for normal selection)
1664 * 2 & 3 - The anchored start and end respectively for word, line,
1665 * or paragraph selection.
1666 */
1667 ed->nCursors = 4;
1668 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1669 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1670 ed->pCursors[0].nOffset = 0;
1671 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1672 ed->pCursors[1].nOffset = 0;
1673 ed->pCursors[2] = ed->pCursors[0];
1674 ed->pCursors[3] = ed->pCursors[1];
1675 ed->nLastTotalLength = ed->nTotalLength = 0;
1676 ed->nHeight = 0;
1677 ed->nUDArrowX = -1;
1678 ed->nSequence = 0;
1679 ed->rgbBackColor = -1;
1680 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1681 ed->bCaretAtEnd = FALSE;
1682 ed->nEventMask = 0;
1683 ed->nModifyStep = 0;
1684 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1685 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1686 ed->nUndoStackSize = 0;
1687 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1688 ed->nUndoMode = umAddToUndo;
1689 ed->nParagraphs = 1;
1690 ed->nLastSelStart = ed->nLastSelEnd = 0;
1691 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1692 ed->bRedraw = TRUE;
1693 ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL) ? FALSE : TRUE;
1694 ed->bHideSelection = FALSE;
1695 ed->nInvalidOfs = -1;
1696 ed->pfnWordBreak = NULL;
1697 ed->lpOleCallback = NULL;
1698 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1699 ed->AutoURLDetect_bEnable = FALSE;
1700 ed->bHaveFocus = FALSE;
1701 for (i=0; i<HFONT_CACHE_SIZE; i++)
1702 {
1703 ed->pFontCache[i].nRefs = 0;
1704 ed->pFontCache[i].nAge = 0;
1705 ed->pFontCache[i].hFont = NULL;
1706 }
1707
1708 ME_CheckCharOffsets(ed);
1709 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
1710 ed->selofs = SELECTIONBAR_WIDTH;
1711 else
1712 ed->selofs = 0;
1713 ed->nSelectionType = stPosition;
1714
1715 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1716 ed->cPasswordMask = '*';
1717 else
1718 ed->cPasswordMask = 0;
1719
1720 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
1721
1722 return ed;
1723 }
1724
1725 typedef struct tagME_GlobalDestStruct
1726 {
1727 HGLOBAL hData;
1728 int nLength;
1729 } ME_GlobalDestStruct;
1730
1731 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1732 {
1733 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1734 int i;
1735 WORD *pSrc, *pDest;
1736
1737 cb = cb >> 1;
1738 pDest = (WORD *)lpBuff;
1739 pSrc = (WORD *)GlobalLock(pData->hData);
1740 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1741 pDest[i] = pSrc[pData->nLength+i];
1742 }
1743 pData->nLength += i;
1744 *pcb = 2*i;
1745 GlobalUnlock(pData->hData);
1746 return 0;
1747 }
1748
1749 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1750 {
1751 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1752 int i;
1753 BYTE *pSrc, *pDest;
1754
1755 pDest = lpBuff;
1756 pSrc = (BYTE *)GlobalLock(pData->hData);
1757 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1758 pDest[i] = pSrc[pData->nLength+i];
1759 }
1760 pData->nLength += i;
1761 *pcb = i;
1762 GlobalUnlock(pData->hData);
1763 return 0;
1764 }
1765
1766
1767 void ME_DestroyEditor(ME_TextEditor *editor)
1768 {
1769 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1770 ME_DisplayItem *p = pFirst, *pNext = NULL;
1771 int i;
1772
1773 ME_ClearTempStyle(editor);
1774 ME_EmptyUndoStack(editor);
1775 while(p) {
1776 pNext = p->next;
1777 ME_DestroyDisplayItem(p);
1778 p = pNext;
1779 }
1780 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1781 for (i=0; i<HFONT_CACHE_SIZE; i++)
1782 {
1783 if (editor->pFontCache[i].hFont)
1784 DeleteObject(editor->pFontCache[i].hFont);
1785 }
1786 if (editor->rgbBackColor != -1)
1787 DeleteObject(editor->hbrBackground);
1788 if(editor->lpOleCallback)
1789 IUnknown_Release(editor->lpOleCallback);
1790
1791 FREE_OBJ(editor->pBuffer);
1792 FREE_OBJ(editor->pCursors);
1793
1794 FREE_OBJ(editor);
1795 }
1796
1797 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1798 {
1799 TRACE("\n");
1800 switch (fdwReason)
1801 {
1802 case DLL_PROCESS_ATTACH:
1803 DisableThreadLibraryCalls(hinstDLL);
1804 me_heap = HeapCreate (0, 0x10000, 0);
1805 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1806 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
1807 LookupInit();
1808 break;
1809
1810 case DLL_PROCESS_DETACH:
1811 UnregisterClassW(RichEdit20W, 0);
1812 UnregisterClassW(RichEdit50W, 0);
1813 UnregisterClassA("RichEdit20A", 0);
1814 UnregisterClassA("RichEdit50A", 0);
1815 if (ME_ListBoxRegistered)
1816 UnregisterClassW(REListBox20W, 0);
1817 if (ME_ComboBoxRegistered)
1818 UnregisterClassW(REComboBox20W, 0);
1819 LookupCleanup();
1820 HeapDestroy (me_heap);
1821 me_heap = NULL;
1822 break;
1823 }
1824 return TRUE;
1825 }
1826
1827
1828 #define UNSUPPORTED_MSG(e) \
1829 case e: \
1830 FIXME(#e ": stub\n"); \
1831 return DefWindowProcW(hWnd, msg, wParam, lParam);
1832
1833 static const char * const edit_messages[] = {
1834 "EM_GETSEL",
1835 "EM_SETSEL",
1836 "EM_GETRECT",
1837 "EM_SETRECT",
1838 "EM_SETRECTNP",
1839 "EM_SCROLL",
1840 "EM_LINESCROLL",
1841 "EM_SCROLLCARET",
1842 "EM_GETMODIFY",
1843 "EM_SETMODIFY",
1844 "EM_GETLINECOUNT",
1845 "EM_LINEINDEX",
1846 "EM_SETHANDLE",
1847 "EM_GETHANDLE",
1848 "EM_GETTHUMB",
1849 "EM_UNKNOWN_BF",
1850 "EM_UNKNOWN_C0",
1851 "EM_LINELENGTH",
1852 "EM_REPLACESEL",
1853 "EM_UNKNOWN_C3",
1854 "EM_GETLINE",
1855 "EM_LIMITTEXT",
1856 "EM_CANUNDO",
1857 "EM_UNDO",
1858 "EM_FMTLINES",
1859 "EM_LINEFROMCHAR",
1860 "EM_UNKNOWN_CA",
1861 "EM_SETTABSTOPS",
1862 "EM_SETPASSWORDCHAR",
1863 "EM_EMPTYUNDOBUFFER",
1864 "EM_GETFIRSTVISIBLELINE",
1865 "EM_SETREADONLY",
1866 "EM_SETWORDBREAKPROC",
1867 "EM_GETWORDBREAKPROC",
1868 "EM_GETPASSWORDCHAR",
1869 "EM_SETMARGINS",
1870 "EM_GETMARGINS",
1871 "EM_GETLIMITTEXT",
1872 "EM_POSFROMCHAR",
1873 "EM_CHARFROMPOS"
1874 };
1875
1876 static const char * const richedit_messages[] = {
1877 "EM_CANPASTE",
1878 "EM_DISPLAYBAND",
1879 "EM_EXGETSEL",
1880 "EM_EXLIMITTEXT",
1881 "EM_EXLINEFROMCHAR",
1882 "EM_EXSETSEL",
1883 "EM_FINDTEXT",
1884 "EM_FORMATRANGE",
1885 "EM_GETCHARFORMAT",
1886 "EM_GETEVENTMASK",
1887 "EM_GETOLEINTERFACE",
1888 "EM_GETPARAFORMAT",
1889 "EM_GETSELTEXT",
1890 "EM_HIDESELECTION",
1891 "EM_PASTESPECIAL",
1892 "EM_REQUESTRESIZE",
1893 "EM_SELECTIONTYPE",
1894 "EM_SETBKGNDCOLOR",
1895 "EM_SETCHARFORMAT",
1896 "EM_SETEVENTMASK",
1897 "EM_SETOLECALLBACK",
1898 "EM_SETPARAFORMAT",
1899 "EM_SETTARGETDEVICE",
1900 "EM_STREAMIN",
1901 "EM_STREAMOUT",
1902 "EM_GETTEXTRANGE",
1903 "EM_FINDWORDBREAK",
1904 "EM_SETOPTIONS",
1905 "EM_GETOPTIONS",
1906 "EM_FINDTEXTEX",
1907 "EM_GETWORDBREAKPROCEX",
1908 "EM_SETWORDBREAKPROCEX",
1909 "EM_SETUNDOLIMIT",
1910 "EM_UNKNOWN_USER_83",
1911 "EM_REDO",
1912 "EM_CANREDO",
1913 "EM_GETUNDONAME",
1914 "EM_GETREDONAME",
1915 "EM_STOPGROUPTYPING",
1916 "EM_SETTEXTMODE",
1917 "EM_GETTEXTMODE",
1918 "EM_AUTOURLDETECT",
1919 "EM_GETAUTOURLDETECT",
1920 "EM_SETPALETTE",
1921 "EM_GETTEXTEX",
1922 "EM_GETTEXTLENGTHEX",
1923 "EM_SHOWSCROLLBAR",
1924 "EM_SETTEXTEX",
1925 "EM_UNKNOWN_USER_98",
1926 "EM_UNKNOWN_USER_99",
1927 "EM_SETPUNCTUATION",
1928 "EM_GETPUNCTUATION",
1929 "EM_SETWORDWRAPMODE",
1930 "EM_GETWORDWRAPMODE",
1931 "EM_SETIMECOLOR",
1932 "EM_GETIMECOLOR",
1933 "EM_SETIMEOPTIONS",
1934 "EM_GETIMEOPTIONS",
1935 "EM_CONVPOSITION",
1936 "EM_UNKNOWN_USER_109",
1937 "EM_UNKNOWN_USER_110",
1938 "EM_UNKNOWN_USER_111",
1939 "EM_UNKNOWN_USER_112",
1940 "EM_UNKNOWN_USER_113",
1941 "EM_UNKNOWN_USER_114",
1942 "EM_UNKNOWN_USER_115",
1943 "EM_UNKNOWN_USER_116",
1944 "EM_UNKNOWN_USER_117",
1945 "EM_UNKNOWN_USER_118",
1946 "EM_UNKNOWN_USER_119",
1947 "EM_SETLANGOPTIONS",
1948 "EM_GETLANGOPTIONS",
1949 "EM_GETIMECOMPMODE",
1950 "EM_FINDTEXTW",
1951 "EM_FINDTEXTEXW",
1952 "EM_RECONVERSION",
1953 "EM_SETIMEMODEBIAS",
1954 "EM_GETIMEMODEBIAS"
1955 };
1956
1957 static const char *
1958 get_msg_name(UINT msg)
1959 {
1960 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
1961 return edit_messages[msg - EM_GETSEL];
1962 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
1963 return richedit_messages[msg - EM_CANPASTE];
1964 return "";
1965 }
1966
1967 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
1968 LPARAM lParam, BOOL unicode)
1969 {
1970 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
1971
1972 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
1973 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
1974
1975 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
1976 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
1977 return 0;
1978 }
1979
1980 switch(msg) {
1981
1982 UNSUPPORTED_MSG(EM_DISPLAYBAND)
1983 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
1984 UNSUPPORTED_MSG(EM_FMTLINES)
1985 UNSUPPORTED_MSG(EM_FORMATRANGE)
1986 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
1987 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
1988 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
1989 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
1990 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
1991 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
1992 UNSUPPORTED_MSG(EM_GETREDONAME)
1993 UNSUPPORTED_MSG(EM_GETTEXTMODE)
1994 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
1995 UNSUPPORTED_MSG(EM_GETUNDONAME)
1996 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
1997 UNSUPPORTED_MSG(EM_PASTESPECIAL)
1998 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
1999 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
2000 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
2001 UNSUPPORTED_MSG(EM_SETFONTSIZE)
2002 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
2003 UNSUPPORTED_MSG(EM_SETPALETTE)
2004 UNSUPPORTED_MSG(EM_SETTABSTOPS)
2005 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
2006 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
2007 UNSUPPORTED_MSG(WM_STYLECHANGING)
2008 UNSUPPORTED_MSG(WM_STYLECHANGED)
2009 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
2010
2011 /* Messages specific to Richedit controls */
2012
2013 case EM_STREAMIN:
2014 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
2015 case EM_STREAMOUT:
2016 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
2017 case WM_GETDLGCODE:
2018 {
2019 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
2020 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
2021 {
2022 int vk = (int)((LPMSG)lParam)->wParam;
2023 /* if style says we want return key */
2024 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
2025 {
2026 code |= DLGC_WANTMESSAGE;
2027 }
2028 /* we always handle ctrl-tab */
2029 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
2030 {
2031 code |= DLGC_WANTMESSAGE;
2032 }
2033 }
2034 return code;
2035 }
2036 case WM_NCCREATE:
2037 {
2038 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
2039 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
2040 editor = ME_MakeEditor(hWnd);
2041 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
2042 return TRUE;
2043 }
2044 case EM_EMPTYUNDOBUFFER:
2045 ME_EmptyUndoStack(editor);
2046 return 0;
2047 case EM_GETSEL:
2048 {
2049 /* Note: wParam/lParam can be NULL */
2050 UINT from, to;
2051 PUINT pfrom = wParam ? (PUINT)wParam : &from;
2052 PUINT pto = lParam ? (PUINT)lParam : &to;
2053 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
2054 if ((*pfrom|*pto) & 0xFFFF0000)
2055 return -1;
2056 return MAKELONG(*pfrom,*pto);
2057 }
2058 case EM_EXGETSEL:
2059 {
2060 CHARRANGE *pRange = (CHARRANGE *)lParam;
2061 ME_GetSelection(editor, &pRange->cpMin, &pRange->cpMax);
2062 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
2063 return 0;
2064 }
2065 case EM_SETUNDOLIMIT:
2066 {
2067 if ((int)wParam < 0)
2068 editor->nUndoLimit = STACK_SIZE_DEFAULT;
2069 else
2070 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
2071 /* Setting a max stack size keeps wine from getting killed
2072 for hogging memory. Windows allocates all this memory at once, so
2073 no program would realistically set a value above our maximum. */
2074 return editor->nUndoLimit;
2075 }
2076 case EM_CANUNDO:
2077 return editor->pUndoStack != NULL;
2078 case EM_CANREDO:
2079 return editor->pRedoStack != NULL;
2080 case WM_UNDO: /* FIXME: actually not the same */
2081 case EM_UNDO:
2082 return ME_Undo(editor);
2083 case EM_REDO:
2084 return ME_Redo(editor);
2085 case EM_GETOPTIONS:
2086 {
2087 /* these flags are equivalent to the ES_* counterparts */
2088 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2089 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
2090 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
2091
2092 return settings;
2093 }
2094 case EM_SETOPTIONS:
2095 {
2096 /* these flags are equivalent to ES_* counterparts
2097 * ECO_READONLY is already implemented in the code, only requires
2098 * setting the bit to work
2099 */
2100 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
2101 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
2102 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
2103 DWORD settings = mask & raw;
2104
2105 switch(wParam)
2106 {
2107 case ECOOP_SET:
2108 settings = lParam;
2109 break;
2110 case ECOOP_OR:
2111 settings |= lParam;
2112 break;
2113 case ECOOP_AND:
2114 settings &= lParam;
2115 break;
2116 case ECOOP_XOR:
2117 settings ^= lParam;
2118 }
2119 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
2120
2121 if (settings & ECO_AUTOWORDSELECTION)
2122 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
2123 if (settings & ECO_SELECTIONBAR)
2124 editor->selofs = SELECTIONBAR_WIDTH;
2125 else
2126 editor->selofs = 0;
2127 ME_WrapMarkedParagraphs(editor);
2128
2129 if (settings & ECO_VERTICAL)
2130 FIXME("ECO_VERTICAL not implemented yet!\n");
2131 if (settings & ECO_AUTOHSCROLL)
2132 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
2133 if (settings & ECO_AUTOVSCROLL)
2134 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
2135 if (settings & ECO_NOHIDESEL)
2136 FIXME("ECO_NOHIDESEL not implemented yet!\n");
2137 if (settings & ECO_WANTRETURN)
2138 FIXME("ECO_WANTRETURN not implemented yet!\n");
2139
2140 return settings;
2141 }
2142 case EM_SETSEL:
2143 {
2144 ME_InvalidateSelection(editor);
2145 ME_SetSelection(editor, wParam, lParam);
2146 ME_InvalidateSelection(editor);
2147 ME_SendSelChange(editor);
2148 return 0;
2149 }
2150 case EM_SETSCROLLPOS:
2151 {
2152 POINT *point = (POINT *)lParam;
2153 ME_ScrollAbs(editor, point->y);
2154 return 0;
2155 }
2156 case EM_AUTOURLDETECT:
2157 {
2158 if (wParam==1 || wParam ==0)
2159 {
2160 editor->AutoURLDetect_bEnable = (BOOL)wParam;
2161 return 0;
2162 }
2163 return E_INVALIDARG;
2164 }
2165 case EM_GETAUTOURLDETECT:
2166 {
2167 return editor->AutoURLDetect_bEnable;
2168 }
2169 case EM_EXSETSEL:
2170 {
2171 int end;
2172 CHARRANGE range = *(CHARRANGE *)lParam;
2173
2174 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
2175
2176 ME_InvalidateSelection(editor);
2177 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
2178 ME_InvalidateSelection(editor);
2179 ME_SendSelChange(editor);
2180
2181 return end;
2182 }
2183 case EM_SHOWSCROLLBAR:
2184 {
2185 ShowScrollBar(editor->hWnd, wParam, lParam);
2186 return 0;
2187 }
2188 case EM_SETTEXTEX:
2189 {
2190 LPWSTR wszText;
2191 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
2192 size_t len;
2193 int from, to;
2194 ME_Style *style;
2195 int oldModify = editor->nModifyStep;
2196
2197 if (!pStruct) return 0;
2198
2199 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
2200 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
2201 pStruct->flags, pStruct->codepage);
2202
2203 /* FIXME: make use of pStruct->codepage in the to unicode translation */
2204 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
2205 len = wszText ? lstrlenW(wszText) : 0;
2206
2207 if (pStruct->flags & ST_SELECTION) {
2208 ME_GetSelection(editor, &from, &to);
2209 style = ME_GetSelectionInsertStyle(editor);
2210 ME_InternalDeleteText(editor, from, to - from);
2211 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2212 ME_StreamInRTFString(editor, 0, (char *)lParam);
2213 else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2214 ME_ReleaseStyle(style);
2215
2216 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2217 }
2218 else {
2219 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2220 if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
2221 ME_StreamInRTFString(editor, 0, (char *)lParam);
2222 else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2223 len = 1;
2224
2225 if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
2226 }
2227 ME_CommitUndo(editor);
2228 if (!(pStruct->flags & ST_KEEPUNDO))
2229 {
2230 editor->nModifyStep = oldModify;
2231 ME_EmptyUndoStack(editor);
2232 }
2233 ME_UpdateRepaint(editor);
2234 return len;
2235 }
2236 case EM_SETBKGNDCOLOR:
2237 {
2238 LRESULT lColor;
2239 if (editor->rgbBackColor != -1) {
2240 DeleteObject(editor->hbrBackground);
2241 lColor = editor->rgbBackColor;
2242 }
2243 else lColor = GetSysColor(COLOR_WINDOW);
2244
2245 if (wParam)
2246 {
2247 editor->rgbBackColor = -1;
2248 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
2249 }
2250 else
2251 {
2252 editor->rgbBackColor = lParam;
2253 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
2254 }
2255 if (editor->bRedraw)
2256 {
2257 InvalidateRect(hWnd, NULL, TRUE);
2258 UpdateWindow(hWnd);
2259 }
2260 return lColor;
2261 }
2262 case EM_GETMODIFY:
2263 return editor->nModifyStep == 0 ? 0 : -1;
2264 case EM_SETMODIFY:
2265 {
2266 if (wParam)
2267 editor->nModifyStep = 1;
2268 else
2269 editor->nModifyStep = 0;
2270
2271 return 0;
2272 }
2273 case EM_SETREADONLY:
2274 {
2275 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
2276 if (wParam)
2277 nStyle |= ES_READONLY;
2278 else
2279 nStyle &= ~ES_READONLY;
2280 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
2281 return 0;
2282 }
2283 case EM_SETEVENTMASK:
2284 {
2285 DWORD nOldMask = editor->nEventMask;
2286
2287 editor->nEventMask = lParam;
2288 return nOldMask;
2289 }
2290 case EM_GETEVENTMASK:
2291 return editor->nEventMask;
2292 case EM_SETCHARFORMAT:
2293 {
2294 CHARFORMAT2W buf, *p;
2295 BOOL bRepaint = TRUE;
2296 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
2297 if (p == NULL) return 0;
2298 if (!wParam)
2299 ME_SetDefaultCharFormat(editor, p);
2300 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
2301 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
2302 return 0;
2303 } else if (wParam == SCF_ALL) {
2304 if (editor->mode & TM_PLAINTEXT)
2305 ME_SetDefaultCharFormat(editor, p);
2306 else {
2307 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
2308 editor->nModifyStep = 1;
2309 }
2310 } else if (editor->mode & TM_PLAINTEXT) {
2311 return 0;
2312 } else {
2313 int from, to;
2314 ME_GetSelection(editor, &from, &to);
2315 bRepaint = (from != to);
2316 ME_SetSelectionCharFormat(editor, p);
2317 if (from != to) editor->nModifyStep = 1;
2318 }
2319 ME_CommitUndo(editor);
2320 if (bRepaint)
2321 ME_RewrapRepaint(editor);
2322 return 1;
2323 }
2324 case EM_GETCHARFORMAT:
2325 {
2326 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
2327 if (dst->cbSize != sizeof(CHARFORMATA) &&
2328 dst->cbSize != sizeof(CHARFORMATW) &&
2329 dst->cbSize != sizeof(CHARFORMAT2A) &&
2330 dst->cbSize != sizeof(CHARFORMAT2W))
2331 return 0;
2332 tmp.cbSize = sizeof(tmp);
2333 if (!wParam)
2334 ME_GetDefaultCharFormat(editor, &tmp);
2335 else
2336 ME_GetSelectionCharFormat(editor, &tmp);
2337 ME_CopyToCFAny(dst, &tmp);
2338 return tmp.dwMask;
2339 }
2340 case EM_SETPARAFORMAT:
2341 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2342 ME_RewrapRepaint(editor);
2343 ME_CommitUndo(editor);
2344 return 0;
2345 case EM_GETPARAFORMAT:
2346 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
2347 return 0;
2348 case EM_GETFIRSTVISIBLELINE:
2349 {
2350 ME_DisplayItem *p = editor->pBuffer->pFirst;
2351 int y = ME_GetYScrollPos(editor);
2352 int ypara = 0;
2353 int count = 0;
2354 int ystart, yend;
2355 while(p) {
2356 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
2357 if (p->type == diTextEnd)
2358 break;
2359 if (p->type == diParagraph) {
2360 ypara = p->member.para.nYPos;
2361 continue;
2362 }
2363 ystart = ypara + p->member.row.nYPos;
2364 yend = ystart + p->member.row.nHeight;
2365 if (y < yend) {
2366 break;
2367 }
2368 count++;
2369 }
2370 return count;
2371 }
2372 case EM_HIDESELECTION:
2373 {
2374 editor->bHideSelection = (wParam != 0);
2375 ME_InvalidateSelection(editor);
2376 return 0;
2377 }
2378 case EM_LINESCROLL:
2379 {
2380 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
2381 return TRUE; /* Should return false if a single line richedit control */
2382 }
2383 case WM_CLEAR:
2384 {
2385 int from, to;
2386 ME_GetSelection(editor, &from, &to);
2387 ME_InternalDeleteText(editor, from, to-from);
2388 ME_CommitUndo(editor);
2389 ME_UpdateRepaint(editor);
2390 return 0;
2391 }
2392 case EM_REPLACESEL:
2393 {
2394 int from, to;
2395 ME_Style *style;
2396 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
2397 size_t len = wszText ? lstrlenW(wszText) : 0;
2398 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
2399
2400 ME_GetSelection(editor, &from, &to);
2401 style = ME_GetSelectionInsertStyle(editor);
2402 ME_InternalDeleteText(editor, from, to-from);
2403 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
2404 ME_ReleaseStyle(style);
2405 /* drop temporary style if line end */
2406 /*
2407 * FIXME question: does abc\n mean: put abc,
2408 * clear temp style, put \n? (would require a change)
2409 */
2410 if (len>0 && wszText[len-1] == '\n')
2411 ME_ClearTempStyle(editor);
2412 ME_EndToUnicode(unicode, wszText);
2413 ME_CommitUndo(editor);
2414 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
2415 if (!wParam)
2416 ME_EmptyUndoStack(editor);
2417 ME_UpdateRepaint(editor);
2418 return len;
2419 }
2420 case EM_SCROLLCARET:
2421 {
2422 int top, bottom; /* row's edges relative to document top */
2423 int nPos;
2424 ME_DisplayItem *para, *row;
2425
2426 nPos = ME_GetYScrollPos(editor);
2427 row = ME_RowStart(editor->pCursors[0].pRun);
2428 para = ME_GetParagraph(row);
2429 top = para->member.para.nYPos + row->member.row.nYPos;
2430 bottom = top + row->member.row.nHeight;
2431
2432 if (top < nPos) /* caret above window */
2433 ME_ScrollAbs(editor, top);
2434 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
2435 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
2436 return 0;
2437 }
2438 case WM_SETFONT:
2439 {
2440 LOGFONTW lf;
2441 CHARFORMAT2W fmt;
2442 HDC hDC;
2443 BOOL bRepaint = LOWORD(lParam);
2444
2445 if (!wParam)
2446 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
2447 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
2448 hDC = GetDC(hWnd);
2449 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
2450 ReleaseDC(hWnd, hDC);
2451 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
2452 ME_SetDefaultCharFormat(editor, &fmt);
2453
2454 ME_CommitUndo(editor);
2455 if (bRepaint)
2456 ME_RewrapRepaint(editor);
2457 return 0;
2458 }
2459 case WM_SETTEXT:
2460 {
2461 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
2462 if (lParam)
2463 {
2464 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
2465 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
2466 {
2467 /* Undocumented: WM_SETTEXT supports RTF text */
2468 ME_StreamInRTFString(editor, 0, (char *)lParam);
2469 }
2470 else
2471 {
2472 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
2473 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
2474 if (lstrlenW(wszText) > 0)
2475 {
2476 int len = -1;
2477
2478 /* uses default style! */
2479 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2480 {
2481 WCHAR * p;
2482
2483 p = wszText;
2484 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
2485 len = p - wszText;
2486 }
2487 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
2488 }
2489 ME_EndToUnicode(unicode, wszText);
2490 }
2491 }
2492 else
2493 TRACE("WM_SETTEXT - NULL\n");
2494 if (editor->AutoURLDetect_bEnable)
2495 {
2496 ME_UpdateLinkAttribute(editor, 0, -1);
2497 }
2498 ME_SetSelection(editor, 0, 0);
2499 editor->nModifyStep = 0;
2500 ME_CommitUndo(editor);
2501 ME_EmptyUndoStack(editor);
2502 ME_UpdateRepaint(editor);
2503 return 1;
2504 }
2505 case EM_CANPASTE:
2506 {
2507 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2508 if (IsClipboardFormatAvailable(nRTFFormat))
2509 return TRUE;
2510 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2511 return TRUE;
2512 return FALSE;
2513 }
2514 case WM_PASTE:
2515 {
2516 DWORD dwFormat = 0;
2517 EDITSTREAM es;
2518 ME_GlobalDestStruct gds;
2519 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2520 UINT cf = 0;
2521
2522 if (IsClipboardFormatAvailable(nRTFFormat))
2523 cf = nRTFFormat, dwFormat = SF_RTF;
2524 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2525 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2526 else
2527 return 0;
2528
2529 if (!OpenClipboard(hWnd))
2530 return 0;
2531 gds.hData = GetClipboardData(cf);
2532 gds.nLength = 0;
2533 es.dwCookie = (DWORD)&gds;
2534 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2535 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
2536
2537 CloseClipboard();
2538 return 0;
2539 }
2540 case WM_CUT:
2541 case WM_COPY:
2542 {
2543 LPDATAOBJECT dataObj = NULL;
2544 CHARRANGE range;
2545 HRESULT hr = S_OK;
2546
2547 if (editor->cPasswordMask)
2548 return 0; /* Copying or Cutting masked text isn't allowed */
2549
2550 ME_GetSelection(editor, &range.cpMin, &range.cpMax);
2551 if(editor->lpOleCallback)
2552 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2553 if(FAILED(hr) || !dataObj)
2554 hr = ME_GetDataObject(editor, &range, &dataObj);
2555 if(SUCCEEDED(hr)) {
2556 hr = OleSetClipboard(dataObj);
2557 IDataObject_Release(dataObj);
2558 }
2559 if (SUCCEEDED(hr) && msg == WM_CUT)
2560 {
2561 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
2562 ME_CommitUndo(editor);
2563 ME_UpdateRepaint(editor);
2564 }
2565 return 0;
2566 }
2567 case WM_GETTEXTLENGTH:
2568 {
2569 GETTEXTLENGTHEX how;
2570
2571 /* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
2572 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
2573 how.codepage = unicode ? 1200 : CP_ACP;
2574 return ME_GetTextLengthEx(editor, &how);
2575 }
2576 case EM_GETTEXTLENGTHEX:
2577 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2578 case WM_GETTEXT:
2579 {
2580 GETTEXTEX ex;
2581 LRESULT rc;
2582 LPSTR bufferA = NULL;
2583 LPWSTR bufferW = NULL;
2584
2585 if (unicode)
2586 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
2587 else
2588 bufferA = heap_alloc(wParam + 2);
2589
2590 ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
2591 ex.flags = GT_USECRLF;
2592 ex.codepage = unicode ? 1200 : CP_ACP;
2593 ex.lpDefaultChar = NULL;
2594 ex.lpUsedDefChar = NULL;
2595 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2596
2597 if (unicode)
2598 {
2599 memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
2600 if (lstrlenW(bufferW) >= wParam) rc = 0;
2601 }
2602 else
2603 {
2604 memcpy((LPSTR)lParam, bufferA, wParam);
2605 if (strlen(bufferA) >= wParam) rc = 0;
2606 }
2607 heap_free(bufferA);
2608 heap_free(bufferW);
2609 return rc;
2610 }
2611 case EM_GETTEXTEX:
2612 {
2613 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2614 int nStart, nCount; /* in chars */
2615
2616 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2617 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2618
2619 if (ex->flags & GT_SELECTION)
2620 {
2621 ME_GetSelection(editor, &nStart, &nCount);
2622 nCount -= nStart;
2623 }
2624 else
2625 {
2626 nStart = 0;
2627 nCount = 0x7fffffff;
2628 }
2629 if (ex->codepage == 1200)
2630 {
2631 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2632 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2633 }
2634 else
2635 {
2636 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2637 we can just take a bigger buffer? :)
2638 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
2639 occurs only in richedit 2.0 mode, in which line breaks have only one CR
2640 */
2641 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2642 LPWSTR buffer;
2643 DWORD buflen = ex->cb;
2644 LRESULT rc;
2645 DWORD flags = 0;
2646
2647 nCount = min(nCount, ex->cb - 1);
2648 buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2649
2650 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2651 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
2652 if (rc) rc--; /* do not count 0 terminator */
2653
2654 heap_free(buffer);
2655 return rc;
2656 }
2657 }
2658 case EM_GETSELTEXT:
2659 {
2660 int from, to;
2661 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2662 ME_GetSelection(editor, &from, &to);
2663 tr.chrg.cpMin = from;
2664 tr.chrg.cpMax = to;
2665 tr.lpstrText = (WCHAR *)lParam;
2666 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2667 }
2668 case EM_GETSCROLLPOS:
2669 {
2670 POINT *point = (POINT *)lParam;
2671 point->x = 0; /* FIXME side scrolling not implemented */
2672 point->y = ME_GetYScrollPos(editor);
2673 return 1;
2674 }
2675 case EM_GETTEXTRANGE:
2676 {
2677 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2678 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2679 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2680 editor->bEmulateVersion10, ME_GetTextLength(editor));
2681 if (unicode)
2682 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
2683 else
2684 {
2685 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2686 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2687 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
2688 /* FIXME this is a potential security hole (buffer overrun)
2689 if you know more about wchar->mbyte conversion please explain
2690 */
2691 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2692 FREE_OBJ(p);
2693 return nChars;
2694 }
2695 }
2696 case EM_GETLINE:
2697 {
2698 ME_DisplayItem *run;
2699 const unsigned int nMaxChars = *(WORD *) lParam;
2700 unsigned int nCharsLeft = nMaxChars;
2701 char *dest = (char *) lParam;
2702 BOOL wroteNull = FALSE;
2703
2704 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2705 unicode ? "Unicode" : "Ansi");
2706
2707 run = ME_FindRowWithNumber(editor, wParam);
2708 if (run == NULL)
2709 return 0;
2710
2711 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2712 && !(run->member.run.nFlags & MERF_ENDPARA))
2713 {
2714 unsigned int nCopy;
2715 ME_String *strText;
2716 if (run->type != diRun)
2717 break;
2718 strText = run->member.run.strText;
2719 nCopy = min(nCharsLeft, strText->nLen);
2720
2721 if (unicode)
2722 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2723 else
2724 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2725 nCharsLeft, NULL, NULL);
2726 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2727 nCharsLeft -= nCopy;
2728 }
2729
2730 /* append line termination, space allowing */
2731 if (nCharsLeft > 0)
2732 {
2733 if (run && (run->member.run.nFlags & MERF_ENDPARA))
2734 {
2735 unsigned int i;
2736 /* Write as many \r as encoded in end-of-paragraph, space allowing */
2737 for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
2738 {
2739 *((WCHAR *)dest) = '\r';
2740 dest += unicode ? sizeof(WCHAR) : 1;
2741 }
2742 /* Write as many \n as encoded in end-of-paragraph, space allowing */
2743 for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
2744 {
2745 *((WCHAR *)dest) = '\n';
2746 dest += unicode ? sizeof(WCHAR) : 1;
2747 }
2748 }
2749 if (nCharsLeft > 0)
2750 {
2751 if (unicode)
2752 *((WCHAR *)dest) = '\0';
2753 else
2754 *dest = '\0';
2755 nCharsLeft--;
2756 wroteNull = TRUE;
2757 }
2758 }
2759
2760 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
2761 return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
2762 }
2763 case EM_GETLINECOUNT:
2764 {
2765 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2766 int nRows = 0;
2767
2768 ME_DisplayItem *prev_para = NULL, *last_para = NULL;
2769
2770 while (item != editor->pBuffer->pLast)
2771 {
2772 assert(item->type == diParagraph);
2773 prev_para = ME_FindItemBack(item, diRun);
2774 if (prev_para) {
2775 assert(prev_para->member.run.nFlags & MERF_ENDPARA);
2776 }
2777 nRows += item->member.para.nRows;
2778 item = item->member.para.next_para;
2779 }
2780 last_para = ME_FindItemBack(item, diRun);
2781 assert(last_para);
2782 assert(last_para->member.run.nFlags & MERF_ENDPARA);
2783 if (editor->bEmulateVersion10 && prev_para && last_para->member.run.nCharOfs == 0
2784 && prev_para->member.run.nCR == 1 && prev_para->member.run.nLF == 0)
2785 {
2786 /* In 1.0 emulation, the last solitary \r at the very end of the text
2787 (if one exists) is NOT a line break.
2788 FIXME: this is an ugly hack. This should have a more regular model. */
2789 nRows--;
2790 }
2791
2792 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2793 return max(1, nRows);
2794 }
2795 case EM_LINEFROMCHAR:
2796 {
2797 if (wParam == -1)
2798 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2799 else
2800 return ME_RowNumberFromCharOfs(editor, wParam);
2801 }
2802 case EM_EXLINEFROMCHAR:
2803 {
2804 if (lParam == -1)
2805 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2806 else
2807 return ME_RowNumberFromCharOfs(editor, lParam);
2808 }
2809 case EM_LINEINDEX:
2810 {
2811 ME_DisplayItem *item, *para;
2812 int nCharOfs;
2813
2814 if (wParam == -1)
2815 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2816 else
2817 item = ME_FindRowWithNumber(editor, wParam);
2818 if (!item)
2819 return -1;
2820 para = ME_GetParagraph(item);
2821 item = ME_FindItemFwd(item, diRun);
2822 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2823 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2824 return nCharOfs;
2825 }
2826 case EM_LINELENGTH:
2827 {
2828 ME_DisplayItem *item, *item_end;
2829 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2830
2831 if (wParam > ME_GetTextLength(editor))
2832 return 0;
2833 if (wParam == -1)
2834 {
2835 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2836 return 0;
2837 }
2838 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2839 item = ME_RowStart(item);
2840 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2841 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2842 if (item_end->type == diStartRow)
2843 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2844 else
2845 {
2846 ME_DisplayItem *endPara;
2847
2848 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
2849 endPara = ME_FindItemFwd(item, diParagraphOrEnd);
2850 endPara = ME_FindItemBack(endPara, diRun);
2851 assert(endPara);
2852 assert(endPara->type == diRun);
2853 assert(endPara->member.run.nFlags & MERF_ENDPARA);
2854 nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
2855 }
2856 nChars = nNextLineOfs - nThisLineOfs;
2857 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2858 return nChars;
2859 }
2860 case EM_EXLIMITTEXT:
2861 {
2862 if ((int)lParam < 0)
2863 return 0;
2864 if (lParam == 0)
2865 editor->nTextLimit = 65536;
2866 else
2867 editor->nTextLimit = (int) lParam;
2868 return 0;
2869 }
2870 case EM_LIMITTEXT:
2871 {
2872 if (wParam == 0)
2873 editor->nTextLimit = 65536;
2874 else
2875 editor->nTextLimit = (int) wParam;
2876 return 0;
2877 }
2878 case EM_GETLIMITTEXT:
2879 {
2880 return editor->nTextLimit;
2881 }
2882 case EM_FINDTEXT:
2883 {
2884 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2885 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2886 WCHAR *tmp;
2887 LRESULT r;
2888
2889 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2890 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2891 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2892 FREE_OBJ( tmp );
2893 return r;
2894 }
2895 case EM_FINDTEXTEX:
2896 {
2897 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2898 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2899 WCHAR *tmp;
2900 LRESULT r;
2901
2902 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2903 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
2904 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
2905 FREE_OBJ( tmp );
2906 return r;
2907 }
2908 case EM_FINDTEXTW:
2909 {
2910 FINDTEXTW *ft = (FINDTEXTW *)lParam;
2911 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
2912 }
2913 case EM_FINDTEXTEXW:
2914 {
2915 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
2916 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
2917 }
2918 case EM_GETZOOM:
2919 if (!wParam || !lParam)
2920 return FALSE;
2921 *(int *)wParam = editor->nZoomNumerator;
2922 *(int *)lParam = editor->nZoomDenominator;
2923 return TRUE;
2924 case EM_SETZOOM:
2925 return ME_SetZoom(editor, wParam, lParam);
2926 case EM_CHARFROMPOS:
2927 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
2928 case EM_POSFROMCHAR:
2929 {
2930 ME_DisplayItem *pRun;
2931 int nCharOfs, nOffset, nLength;
2932 POINTL pt = {0,0};
2933 SCROLLINFO si;
2934
2935 nCharOfs = wParam;
2936 /* detect which API version we're dealing with */
2937 if (wParam >= 0x40000)
2938 nCharOfs = lParam;
2939 nLength = ME_GetTextLength(editor);
2940
2941 if (nCharOfs < nLength) {
2942 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
2943 assert(pRun->type == diRun);
2944 pt.y = pRun->member.run.pt.y;
2945 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
2946 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
2947 } else {
2948 pt.x = 0;
2949 pt.y = editor->pBuffer->pLast->member.para.nYPos;
2950 }
2951 pt.x += editor->selofs;
2952
2953 si.cbSize = sizeof(si);
2954 si.fMask = SIF_POS;
2955 if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
2956 si.cbSize = sizeof(si);
2957 si.fMask = SIF_POS;
2958 if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
2959
2960 if (wParam >= 0x40000) {
2961 *(POINTL *)wParam = pt;
2962 }
2963 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
2964 }
2965 case WM_CREATE:
2966 GetClientRect(hWnd, &editor->rcFormat);
2967 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
2968 { /* Squelch the default horizontal scrollbar it would make */
2969 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
2970 }
2971 ME_CommitUndo(editor);
2972 ME_WrapMarkedParagraphs(editor);
2973 ME_MoveCaret(editor);
2974 return 0;
2975 case WM_DESTROY:
2976 ME_DestroyEditor(editor);
2977 SetWindowLongPtrW(hWnd, 0, 0);
2978 return 0;
2979 case WM_LBUTTONDBLCLK:
2980 case WM_LBUTTONDOWN:
2981 {
2982 int clickNum = (msg == WM_LBUTTONDBLCLK) ? 2 : 1;
2983 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2984 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2985 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2986 return 0;
2987 SetFocus(hWnd);
2988 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
2989 clickNum);
2990 SetCapture(hWnd);
2991 ME_LinkNotify(editor,msg,wParam,lParam);
2992 if (!ME_SetCursor(editor, LOWORD(lParam))) goto do_default;
2993 break;
2994 }
2995 case WM_MOUSEMOVE:
2996 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2997 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2998 return 0;
2999 if (GetCapture() == hWnd)
3000 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3001 ME_LinkNotify(editor,msg,wParam,lParam);
3002 if (!ME_SetCursor(editor, LOWORD(lParam))) goto do_default;
3003 break;
3004 case WM_LBUTTONUP:
3005 if (GetCapture() == hWnd)
3006 ReleaseCapture();
3007 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3008 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3009 return 0;
3010 else
3011 {
3012 BOOL ret;
3013 ret = ME_SetCursor(editor, LOWORD(lParam));
3014 ME_LinkNotify(editor,msg,wParam,lParam);
3015 if (!ret) goto do_default;
3016 }
3017 break;
3018 case WM_RBUTTONUP:
3019 case WM_RBUTTONDOWN:
3020 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3021 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3022 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3023 return 0;
3024 goto do_default;
3025 case WM_CONTEXTMENU:
3026 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3027 goto do_default;
3028 break;
3029 case WM_PAINT:
3030 if (editor->bRedraw)
3031 {
3032 HDC hDC;
3033 PAINTSTRUCT ps;
3034
3035 hDC = BeginPaint(hWnd, &ps);
3036 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
3037 EndPaint(hWnd, &ps);
3038 }
3039 break;
3040 case WM_SETFOCUS:
3041 editor->bHaveFocus = TRUE;
3042 ME_ShowCaret(editor);
3043 ME_SendOldNotify(editor, EN_SETFOCUS);
3044 return 0;
3045 case WM_KILLFOCUS:
3046 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3047 ME_HideCaret(editor);
3048 editor->bHaveFocus = FALSE;
3049 ME_SendOldNotify(editor, EN_KILLFOCUS);
3050 return 0;
3051 case WM_ERASEBKGND:
3052 {
3053 if (editor->bRedraw)
3054 {
3055 HDC hDC = (HDC)wParam;
3056 RECT rc;
3057 if (GetUpdateRect(hWnd,&rc,TRUE))
3058 {
3059 FillRect(hDC, &rc, editor->hbrBackground);
3060 }
3061 }
3062 return 1;
3063 }
3064 case WM_COMMAND:
3065 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3066 return 0;
3067 case WM_KEYUP:
3068 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3069 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3070 return 0;
3071 goto do_default;
3072 case WM_KEYDOWN:
3073 if ((editor->nEventMask & ENM_KEYEVENTS) &&
3074 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3075 return 0;
3076 if (ME_KeyDown(editor, LOWORD(wParam)))
3077 return 0;
3078 goto do_default;
3079 case WM_CHAR:
3080 {
3081 WCHAR wstr;
3082
3083 if (unicode)
3084 wstr = (WCHAR)wParam;
3085 else
3086 {
3087 CHAR charA = wParam;
3088 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
3089 }
3090
3091 switch (wstr)
3092 {
3093 case 1: /* Ctrl-A */
3094 ME_SetSelection(editor, 0, -1);
3095 return 0;
3096 case 3: /* Ctrl-C */
3097 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
3098 return 0;
3099 }
3100
3101 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
3102 MessageBeep(MB_ICONERROR);
3103 return 0; /* FIXME really 0 ? */
3104 }
3105
3106 switch (wstr)
3107 {
3108 case 22: /* Ctrl-V */
3109 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
3110 return 0;
3111 case 24: /* Ctrl-X */
3112 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
3113 return 0;
3114 case 25: /* Ctrl-Y */
3115 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
3116 return 0;
3117 case 26: /* Ctrl-Z */
3118 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
3119 return 0;
3120 }
3121 if (((unsigned)wstr)>=' '
3122 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
3123 || wstr=='\t') {
3124 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
3125 /* WM_CHAR is restricted to nTextLimit */
3126 int from, to;
3127 ME_GetSelection(editor, &from, &to);
3128 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
3129 {
3130 ME_Style *style = ME_GetInsertStyle(editor, 0);
3131 ME_SaveTempStyle(editor);
3132 ME_ContinueCoalescingTransaction(editor);
3133 if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
3134 ME_InsertEndRowFromCursor(editor, 0);
3135 else
3136 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
3137 ME_ReleaseStyle(style);
3138 ME_CommitCoalescingUndo(editor);
3139 }
3140
3141 if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
3142
3143 ME_UpdateRepaint(editor);
3144 }
3145 return 0;
3146 }
3147 case EM_STOPGROUPTYPING:
3148 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3149 return 0;
3150 case EM_SCROLL: /* fall through */
3151 case WM_VSCROLL:
3152 {
3153 int origNPos;
3154 int lineHeight;
3155
3156 origNPos = ME_GetYScrollPos(editor);
3157 lineHeight = 24;
3158
3159 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
3160 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3161 if (lineHeight <= 0) lineHeight = 24;
3162
3163 switch(LOWORD(wParam))
3164 {
3165 case SB_LINEUP:
3166 ME_ScrollUp(editor,lineHeight);
3167 break;
3168 case SB_LINEDOWN:
3169 ME_ScrollDown(editor,lineHeight);
3170 break;
3171 case SB_PAGEUP:
3172 ME_ScrollUp(editor,editor->sizeWindow.cy);
3173 break;
3174 case SB_PAGEDOWN:
3175 ME_ScrollDown(editor,editor->sizeWindow.cy);
3176 break;
3177 case SB_THUMBTRACK:
3178 case SB_THUMBPOSITION:
3179 ME_ScrollAbs(editor,HIWORD(wParam));
3180 break;
3181 }
3182 if (msg == EM_SCROLL)
3183 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
3184 break;
3185 }
3186 case WM_MOUSEWHEEL:
3187 {
3188 int gcWheelDelta;
3189 UINT pulScrollLines;
3190
3191 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
3192 !ME_FilterEvent(editor, msg, &wParam, &lParam))
3193 return 0;
3194
3195 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
3196 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
3197
3198 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
3199 {
3200 /* FIXME follow the original */
3201 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
3202 }
3203 break;
3204 }
3205 case EM_GETRECT:
3206 {
3207 *((RECT *)lParam) = editor->rcFormat;
3208 return 0;
3209 }
3210 case EM_SETRECT:
3211 case EM_SETRECTNP:
3212 {
3213 if (lParam)
3214 {
3215 RECT *rc = (RECT *)lParam;
3216
3217 if (wParam)
3218 {
3219 editor->rcFormat.left += rc->left;
3220 editor->rcFormat.top += rc->top;
3221 editor->rcFormat.right += rc->right;
3222 editor->rcFormat.bottom += rc->bottom;
3223 }
3224 else
3225 {
3226 editor->rcFormat = *rc;
3227 }
3228 }
3229 else
3230 {
3231 GetClientRect(hWnd, &editor->rcFormat);
3232 }
3233 if (msg != EM_SETRECTNP)
3234 ME_RewrapRepaint(editor);
3235 return 0;
3236 }
3237 case EM_REQUESTRESIZE:
3238 ME_SendRequestResize(editor, TRUE);
3239 return 0;
3240 case WM_SETREDRAW:
3241 if ((editor->bRedraw = wParam))
3242 ME_RewrapRepaint(editor);
3243 return 0;
3244 case WM_SIZE:
3245 {
3246 GetClientRect(hWnd, &editor->rcFormat);
3247 ME_RewrapRepaint(editor);
3248 return DefWindowProcW(hWnd, msg, wParam, lParam);
3249 }
3250 /* IME messages to make richedit controls IME aware */
3251 case WM_IME_SETCONTEXT:
3252 case WM_IME_CONTROL:
3253 case WM_IME_SELECT:
3254 case WM_IME_COMPOSITIONFULL:
3255 return 0;
3256 case WM_IME_STARTCOMPOSITION:
3257 {
3258 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
3259 ME_DeleteSelection(editor);
3260 ME_CommitUndo(editor);
3261 ME_UpdateRepaint(editor);
3262 return 0;
3263 }
3264 case WM_IME_COMPOSITION:
3265 {
3266 HIMC hIMC;
3267
3268 ME_Style *style = ME_GetInsertStyle(editor, 0);
3269 hIMC = ImmGetContext(hWnd);
3270 ME_DeleteSelection(editor);
3271 ME_CommitUndo(editor);
3272 ME_SaveTempStyle(editor);
3273 if (lParam & GCS_RESULTSTR)
3274 {
3275 LPWSTR lpCompStr = NULL;
3276 DWORD dwBufLen;
3277
3278 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
3279 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3280 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
3281 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3282 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3283 }
3284 else if (lParam & GCS_COMPSTR)
3285 {
3286 LPWSTR lpCompStr = NULL;
3287 DWORD dwBufLen;
3288
3289 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
3290 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
3291 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
3292 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
3293
3294 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
3295 ME_SetSelection(editor,editor->imeStartIndex,
3296 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
3297 }
3298 ME_ReleaseStyle(style);
3299 ME_UpdateRepaint(editor);
3300 return 0;
3301 }
3302 case WM_IME_ENDCOMPOSITION:
3303 {
3304 ME_DeleteSelection(editor);
3305 editor->imeStartIndex=-1;
3306 return 0;
3307 }
3308 case EM_GETOLEINTERFACE:
3309 {
3310 LPVOID *ppvObj = (LPVOID*) lParam;
3311 return CreateIRichEditOle(editor, ppvObj);
3312 }
3313 case EM_GETPASSWORDCHAR:
3314 {
3315 return editor->cPasswordMask;
3316 }
3317 case EM_SETOLECALLBACK:
3318 if(editor->lpOleCallback)
3319 IUnknown_Release(editor->lpOleCallback);
3320 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
3321 if(editor->lpOleCallback)
3322 IUnknown_AddRef(editor->lpOleCallback);
3323 return TRUE;
3324 case EM_GETWORDBREAKPROC:
3325 return (LRESULT)editor->pfnWordBreak;
3326 case EM_SETWORDBREAKPROC:
3327 {
3328 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
3329
3330 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
3331 return (LRESULT)pfnOld;
3332 }
3333 case EM_SETTEXTMODE:
3334 {
3335 LRESULT ret;
3336 int mask = 0;
3337 int changes = 0;
3338 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
3339 if (!ret)
3340 {
3341 /*Check for valid wParam*/
3342 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
3343 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
3344 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
3345 return 1;
3346 else
3347 {
3348 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
3349 {
3350 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
3351 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
3352 }
3353 /*FIXME: Currently no support for undo level and code page options*/
3354 editor->mode = (editor->mode & (~mask)) | changes;
3355 return 0;
3356 }
3357 }
3358 return ret;
3359 }
3360 case EM_SETPASSWORDCHAR:
3361 {
3362 editor->cPasswordMask = wParam;
3363 ME_RewrapRepaint(editor);
3364 return 0;
3365 }
3366 case EM_SETTARGETDEVICE:
3367 if (wParam == 0)
3368 {
3369 BOOL new = (lParam == 0);
3370 if (editor->bWordWrap != new)
3371 {
3372 editor->bWordWrap = new;
3373 ME_RewrapRepaint(editor);
3374 }
3375 }
3376 else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
3377 break;
3378 default:
3379 do_default:
3380 return DefWindowProcW(hWnd, msg, wParam, lParam);
3381 }
3382 return 0L;
3383 }
3384
3385 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3386 {
3387 BOOL unicode = TRUE;
3388
3389 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
3390 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
3391 unicode = FALSE;
3392
3393 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
3394 }
3395
3396 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3397 {
3398 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
3399 }
3400
3401 /******************************************************************
3402 * RichEditANSIWndProc (RICHED20.10)
3403 */
3404 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3405 {
3406 return RichEditWndProcA(hWnd, msg, wParam, lParam);
3407 }
3408
3409 /******************************************************************
3410 * RichEdit10ANSIWndProc (RICHED20.9)
3411 */
3412 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
3413 {
3414 LRESULT result;
3415
3416 /* FIXME: this is NOT the same as 2.0 version */
3417 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
3418 if (msg == WM_NCCREATE)
3419 {
3420 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
3421
3422 editor->bEmulateVersion10 = TRUE;
3423 editor->pBuffer->pLast->member.para.nCharOfs = 2;
3424 assert(editor->pBuffer->pLast->prev->type == diRun);
3425 assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
3426 editor->pBuffer->pLast->prev->member.run.nLF = 1;
3427 }
3428 return result;
3429 }
3430
3431 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
3432 {
3433 HWND hWnd = editor->hWnd;
3434 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
3435 }
3436
3437 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
3438 {
3439 int x,y;
3440 ME_Cursor tmpCursor;
3441 int nCharOfs; /* The start of the clicked text. Absolute character offset */
3442
3443 ME_Run *tmpRun;
3444
3445 ENLINK info;
3446 x = (short)LOWORD(lParam);
3447 y = (short)HIWORD(lParam);
3448 nCharOfs = ME_CharFromPos(editor, x, y);
3449 if (nCharOfs < 0) return;
3450
3451 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
3452 tmpRun = &tmpCursor.pRun->member.run;
3453
3454 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
3455 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
3456 { /* The clicked run has CFE_LINK set */
3457 info.nmhdr.hwndFrom = editor->hWnd;
3458 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
3459 info.nmhdr.code = EN_LINK;
3460 info.msg = msg;
3461 info.wParam = wParam;
3462 info.lParam = lParam;
3463 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
3464 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
3465 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
3466 }
3467 }
3468
3469 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
3470 {
3471 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
3472 int i = 0;
3473
3474 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
3475 item = item->member.para.next_para;
3476 if (!item)
3477 return 0;
3478 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
3479 item = item->member.para.next_para;
3480 i++;
3481 }
3482 return i;
3483 }
3484
3485
3486 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
3487 {
3488 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
3489 int nWritten = 0;
3490 WCHAR *pStart = buffer;
3491
3492 if (!item) {
3493 *buffer = 0;
3494 return 0;
3495 }
3496
3497 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
3498 if (editor->bEmulateVersion10) bCRLF = 0;
3499
3500 if (nStart)
3501 {
3502 int nLen = ME_StrLen(item->member.run.strText) - nStart;
3503 if (nLen > nChars)
3504 nLen = nChars;
3505 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
3506 nChars -= nLen;
3507 nWritten += nLen;
3508 buffer += nLen;
3509 if (!nChars) {
3510 *buffer = 0;
3511 return nWritten;
3512 }
3513 nStart = 0;
3514 item = ME_FindItemFwd(item, diRun);
3515 }
3516
3517 while(nChars && item)
3518 {
3519 int nLen = ME_StrLen(item->member.run.strText);
3520 if (item->member.run.nFlags & MERF_ENDPARA)
3521 nLen = item->member.run.nCR + item->member.run.nLF;
3522 if (nLen > nChars)
3523 nLen = nChars;
3524
3525 if (item->member.run.nFlags & MERF_ENDPARA)
3526 {
3527 if (!ME_FindItemFwd(item, diRun))
3528 /* No '\r' is appended to the last paragraph. */
3529 nLen = 0;
3530 else if (bCRLF && nChars == 1) {
3531 nLen = 0;
3532 nChars = 0;
3533 } else {
3534 if (bCRLF)
3535 {
3536 /* richedit 2.0 case - actual line-break is \r but should report \r\n */
3537 assert(nLen == 1);
3538 *buffer++ = '\r';
3539 *buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
3540 nWritten++;
3541 }
3542 else
3543 {
3544 int i, j;
3545
3546 /* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
3547 i = 0;
3548 while (nChars - i > 0 && i < item->member.run.nCR)
3549 {
3550 buffer[i] = '\r'; i++;
3551 }
3552 j = 0;
3553 while (nChars - i - j > 0 && j < item->member.run.nLF)
3554 {
3555 buffer[i+j] = '\n'; j++;
3556 }
3557 }
3558 }
3559 }
3560 else
3561 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
3562 nChars -= nLen;
3563 nWritten += nLen;
3564 buffer += nLen;
3565
3566 if (!nChars)
3567 {
3568 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3569 *buffer = 0;
3570 return nWritten;
3571 }
3572 item = ME_FindItemFwd(item, diRun);
3573 }
3574 *buffer = 0;
3575 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
3576 return nWritten;
3577 }
3578
3579 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
3580 {
3581 WNDCLASSW wcW;
3582 WNDCLASSA wcA;
3583
3584 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3585 wcW.lpfnWndProc = RichEditWndProcW;
3586 wcW.cbClsExtra = 0;
3587 wcW.cbWndExtra = sizeof(ME_TextEditor *);
3588 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
3589 wcW.hIcon = NULL;
3590 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3591 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3592 wcW.lpszMenuName = NULL;
3593
3594 if (is_version_nt())
3595 {
3596 wcW.lpszClassName = RichEdit20W;
3597 if (!RegisterClassW(&wcW)) return FALSE;
3598 wcW.lpszClassName = RichEdit50W;
3599 if (!RegisterClassW(&wcW)) return FALSE;
3600 }
3601 else
3602 {
3603 /* WNDCLASSA/W have the same layout */
3604 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
3605 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3606 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
3607 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
3608 }
3609
3610 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
3611 wcA.lpfnWndProc = RichEditWndProcA;
3612 wcA.cbClsExtra = 0;
3613 wcA.cbWndExtra = sizeof(ME_TextEditor *);
3614 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
3615 wcA.hIcon = NULL;
3616 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3617 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3618 wcA.lpszMenuName = NULL;
3619 wcA.lpszClassName = "RichEdit20A";
3620 if (!RegisterClassA(&wcA)) return FALSE;
3621 wcA.lpszClassName = "RichEdit50A";
3622 if (!RegisterClassA(&wcA)) return FALSE;
3623
3624 return TRUE;
3625 }
3626
3627 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3628 /* FIXME: Not implemented */
3629 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3630 hWnd, msg, get_msg_name(msg), wParam, lParam);
3631 return DefWindowProcW(hWnd, msg, wParam, lParam);
3632 }
3633
3634 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3635 /* FIXME: Not implemented */
3636 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3637 hWnd, msg, get_msg_name(msg), wParam, lParam);
3638 return DefWindowProcW(hWnd, msg, wParam, lParam);
3639 }
3640
3641 /******************************************************************
3642 * REExtendedRegisterClass (RICHED20.8)
3643 *
3644 * FIXME undocumented
3645 * Need to check for errors and implement controls and callbacks
3646 */
3647 LRESULT WINAPI REExtendedRegisterClass(void)
3648 {
3649 WNDCLASSW wcW;
3650 UINT result;
3651
3652 FIXME("semi stub\n");
3653
3654 wcW.cbClsExtra = 0;
3655 wcW.cbWndExtra = 4;
3656 wcW.hInstance = NULL;
3657 wcW.hIcon = NULL;
3658 wcW.hCursor = NULL;
3659 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
3660 wcW.lpszMenuName = NULL;
3661
3662 if (!ME_ListBoxRegistered)
3663 {
3664 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
3665 wcW.lpfnWndProc = REListWndProc;
3666 wcW.lpszClassName = REListBox20W;
3667 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
3668 }
3669
3670 if (!ME_ComboBoxRegistered)
3671 {
3672 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
3673 wcW.lpfnWndProc = REComboWndProc;
3674 wcW.lpszClassName = REComboBox20W;
3675 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
3676 }
3677
3678 result = 0;
3679 if (ME_ListBoxRegistered)
3680 result += 1;
3681 if (ME_ComboBoxRegistered)
3682 result += 2;
3683
3684 return result;
3685 }
3686
3687 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
3688 {
3689 struct prefix_s {
3690 const char *text;
3691 int length;
3692 } prefixes[12] = {
3693 {"http:", 5},
3694 {"file:", 6},
3695 {"mailto:", 8},
3696 {"ftp:", 5},
3697 {"https:", 7},
3698 {"gopher:", 8},
3699 {"nntp:", 6},
3700 {"prospero:", 10},
3701 {"telnet:", 8},
3702 {"news:", 6},
3703 {"wais:", 6},
3704 {"www.", 5}
3705 };
3706 CHARRANGE ins_pt;
3707 int curf_ef, link_ef, def_ef;
3708 int cur_prefx, prefx_cnt;
3709 int sel_min, sel_max;
3710 int car_pos = 0;
3711 int text_pos=-1;
3712 int URLmin, URLmax = 0;
3713 FINDTEXTA ft;
3714 CHARFORMAT2W cur_format;
3715 CHARFORMAT2W default_format;
3716 CHARFORMAT2W link;
3717 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3718 sel_min = ins_pt.cpMin;
3719 sel_max = ins_pt.cpMax;
3720 if (sel_min==sel_max)
3721 car_pos = sel_min;
3722 if (sel_min!=sel_max)
3723 car_pos = ME_GetTextLength(editor)+1;
3724 cur_format.cbSize = sizeof(cur_format);
3725 default_format.cbSize = sizeof(default_format);
3726 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3727 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3728 link.cbSize = sizeof(link);
3729 link.dwMask = CFM_LINK;
3730 link.dwEffects = CFE_LINK;
3731 curf_ef = cur_format.dwEffects & link.dwEffects;
3732 def_ef = default_format.dwEffects & link.dwEffects;
3733 link_ef = link.dwEffects & link.dwEffects;
3734 if (curf_ef == link_ef)
3735 {
3736 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3737 {
3738 ME_SetSelection(editor, car_pos, car_pos);
3739 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3740 text_pos=-1;
3741 return 0;
3742 }
3743 }
3744 if (curf_ef == def_ef)
3745 {
3746 cur_prefx = 0;
3747 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3748 while (cur_prefx<=prefx_cnt)
3749 {
3750 if (text_pos == -1)
3751 {
3752 ft.lpstrText = prefixes[cur_prefx].text;
3753 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3754 URLmax=max(0, car_pos);
3755 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3756 {
3757 URLmax = ME_GetTextLength(editor)+1;
3758 }
3759 ft.chrg.cpMin = URLmin;
3760 ft.chrg.cpMax = URLmax;
3761 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3762 cur_prefx++;
3763 }
3764 if (text_pos != -1)
3765 {
3766 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3767 ME_RewrapRepaint(editor);
3768 break;
3769 }
3770 }
3771 }
3772 return 0;
3773 }
3774
3775
3776 static BOOL isurlspecial(WCHAR c)
3777 {
3778 static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
3779 return strchrW( special_chars, c ) != NULL;
3780 }
3781
3782 /**
3783 * This proc takes a selection, and scans it forward in order to select the span
3784 * of a possible URL candidate. A possible URL candidate must start with isalnum
3785 * or one of the following special characters: *|/\+%#@ and must consist entirely
3786 * of the characters allowed to start the URL, plus : (colon) which may occur
3787 * at most once, and not at either end.
3788 *
3789 * sel_max == -1 indicates scan to end of text.
3790 */
3791 BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
3792 int * candidate_min, int * candidate_max)
3793 {
3794 ME_DisplayItem * item;
3795 ME_DisplayItem * para;
3796 int nStart;
3797 BOOL foundColon = FALSE;
3798 WCHAR lastAcceptedChar = '\0';
3799
3800 TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
3801
3802 *candidate_min = *candidate_max = -1;
3803 item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
3804 if (!item) return FALSE;
3805 TRACE("nStart = %d\n", nStart);
3806 para = ME_GetParagraph(item);
3807 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3808 while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
3809 {
3810 ME_DisplayItem * next_item;
3811
3812 if (!(item->member.run.nFlags & MERF_ENDPARA)) {
3813 /* Find start of candidate */
3814 if (*candidate_min == -1) {
3815 while (nStart < ME_StrLen(item->member.run.strText) &&
3816 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3817 isurlspecial(item->member.run.strText->szData[nStart]))) {
3818 nStart++;
3819 }
3820 if (nStart < ME_StrLen(item->member.run.strText) &&
3821 (isalnumW(item->member.run.strText->szData[nStart]) ||
3822 isurlspecial(item->member.run.strText->szData[nStart]))) {
3823 *candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3824 lastAcceptedChar = item->member.run.strText->szData[nStart];
3825 nStart++;
3826 }
3827 }
3828
3829 /* Find end of candidate */
3830 if (*candidate_min >= 0) {
3831 while (nStart < ME_StrLen(item->member.run.strText) &&
3832 (isalnumW(item->member.run.strText->szData[nStart]) ||
3833 isurlspecial(item->member.run.strText->szData[nStart]) ||
3834 (!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
3835 if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
3836 lastAcceptedChar = item->member.run.strText->szData[nStart];
3837 nStart++;
3838 }
3839 if (nStart < ME_StrLen(item->member.run.strText) &&
3840 !(isalnumW(item->member.run.strText->szData[nStart]) ||
3841 isurlspecial(item->member.run.strText->szData[nStart]) )) {
3842 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3843 nStart++;
3844 if (lastAcceptedChar == ':') (*candidate_max)--;
3845 return TRUE;
3846 }
3847 }
3848 } else {
3849 /* End of paragraph: skip it if before candidate span, or terminates
3850 current active span */
3851 if (*candidate_min >= 0) {
3852 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
3853 if (lastAcceptedChar == ':') (*candidate_max)--;
3854 return TRUE;
3855 }
3856 }
3857
3858 /* Reaching this point means no span was found, so get next span */
3859 next_item = ME_FindItemFwd(item, diRun);
3860 if (!next_item) {
3861 if (*candidate_min >= 0) {
3862 /* There are no further runs, so take end of text as end of candidate */
3863 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3864 if (lastAcceptedChar == ':') (*candidate_max)--;
3865 return TRUE;
3866 }
3867 }
3868 item = next_item;
3869 para = ME_GetParagraph(item);
3870 nStart = 0;
3871 }
3872
3873 if (item) {
3874 if (*candidate_min >= 0) {
3875 /* There are no further runs, so take end of text as end of candidate */
3876 *candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
3877 if (lastAcceptedChar == ':') (*candidate_max)--;
3878 return TRUE;
3879 }
3880 }
3881 return FALSE;
3882 }
3883
3884 /**
3885 * This proc evaluates the selection and returns TRUE if it can be considered an URL
3886 */
3887 BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
3888 {
3889 struct prefix_s {
3890 const char *text;
3891 int length;
3892 } prefixes[12] = {
3893 /* Code below depends on these being in decreasing length order! */
3894 {"prospero:", 10},
3895 {"telnet:", 8},
3896 {"gopher:", 8},
3897 {"mailto:", 8},
3898 {"https:", 7},
3899 {"file:", 6},
3900 {"news:", 6},
3901 {"wais:", 6},
3902 {"nntp:", 6},
3903 {"http:", 5},
3904 {"www.", 5},
3905 {"ftp:", 5},
3906 };
3907 LPWSTR bufferW = NULL;
3908 WCHAR bufW[32];
3909 int i;
3910
3911 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3912 assert(sel_min <= sel_max);
3913 for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
3914 {
3915 if (sel_max - sel_min < prefixes[i].length) continue;
3916 if (bufferW == NULL) {
3917 bufferW = (LPWSTR)heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
3918 }
3919 ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, strlen(prefixes[i].text)), 0);
3920 MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
3921 if (!lstrcmpW(bufW, bufferW))
3922 {
3923 heap_free(bufferW);
3924 return TRUE;
3925 }
3926 }
3927 heap_free(bufferW);
3928 return FALSE;
3929 }
3930
3931 /**
3932 * This proc walks through the indicated selection and evaluates whether each
3933 * section identified by ME_FindNextURLCandidate and in-between sections have
3934 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
3935 * not what it is supposed to be, this proc sets or unsets it as appropriate.
3936 *
3937 * Returns TRUE if at least one section was modified.
3938 */
3939 BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
3940 {
3941 BOOL modified = FALSE;
3942 int cMin, cMax;
3943
3944 if (sel_max == -1) sel_max = ME_GetTextLength(editor);
3945 do
3946 {
3947 int beforeURL[2];
3948 int inURL[2];
3949 CHARFORMAT2W link;
3950
3951 if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
3952 {
3953 /* Section before candidate is not an URL */
3954 beforeURL[0] = sel_min;
3955 beforeURL[1] = cMin;
3956
3957 if (ME_IsCandidateAnURL(editor, cMin, cMax))
3958 {
3959 inURL[0] = cMin; inURL[1] = cMax;
3960 }
3961 else
3962 {
3963 beforeURL[1] = cMax;
3964 inURL[0] = inURL[1] = -1;
3965 }
3966 sel_min = cMax;
3967 }
3968 else
3969 {
3970 /* No more candidates until end of selection */
3971 beforeURL[0] = sel_min;
3972 beforeURL[1] = sel_max;
3973 inURL[0] = inURL[1] = -1;
3974 sel_min = sel_max;
3975 }
3976
3977 if (beforeURL[0] < beforeURL[1])
3978 {
3979 /* CFE_LINK effect should be consistently unset */
3980 link.cbSize = sizeof(link);
3981 ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &link);
3982 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
3983 {
3984 /* CFE_LINK must be unset from this range */
3985 memset(&link, 0, sizeof(CHARFORMAT2W));
3986 link.cbSize = sizeof(link);
3987 link.dwMask = CFM_LINK;
3988 link.dwEffects = 0;
3989 ME_SetCharFormat(editor, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
3990 modified = TRUE;
3991 }
3992 }
3993 if (inURL[0] < inURL[1])
3994 {
3995 /* CFE_LINK effect should be consistently set */
3996 link.cbSize = sizeof(link);
3997 ME_GetCharFormat(editor, inURL[0], inURL[1], &link);
3998 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
3999 {
4000 /* CFE_LINK must be set on this range */
4001 memset(&link, 0, sizeof(CHARFORMAT2W));
4002 link.cbSize = sizeof(link);
4003 link.dwMask = CFM_LINK;
4004 link.dwEffects = CFE_LINK;
4005 ME_SetCharFormat(editor, inURL[0], inURL[1] - inURL[0], &link);
4006 modified = TRUE;
4007 }
4008 }
4009 } while (sel_min < sel_max);
4010 return modified;
4011 }
4012
4013 void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
4014 {
4015 ME_DisplayItem * startPara, * endPara;
4016 ME_DisplayItem * item;
4017 int dummy;
4018 int from, to;
4019
4020 ME_GetSelection(editor, &from, &to);
4021 if (from > to) from ^= to, to ^=from, from ^= to;
4022 startPara = NULL; endPara = NULL;
4023
4024 /* Find paragraph previous to the one that contains start cursor */
4025 item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
4026 if (item) {
4027 startPara = ME_FindItemBack(item, diParagraph);
4028 item = ME_FindItemBack(startPara, diParagraph);
4029 if (item) startPara = item;
4030 }
4031
4032 /* Find paragraph that contains end cursor */
4033 item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
4034 if (item) {
4035 endPara = ME_FindItemFwd(item, diParagraph);
4036 }
4037
4038 if (startPara && endPara) {
4039 ME_UpdateLinkAttribute(editor,
4040 startPara->member.para.nCharOfs,
4041 endPara->member.para.nCharOfs);
4042 } else if (startPara) {
4043 ME_UpdateLinkAttribute(editor,
4044 startPara->member.para.nCharOfs,
4045 -1);
4046 }
4047 }
Work in progress by Kai Blin