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richedit: Simplified handling of background brush while painting.
[wine/gsoc_dplay.git] / dlls / riched20 / editor.c
blob518f86b5e2c8650102c6496f91a3a15428efb892
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 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 /*
24 API implementation status:
25
26 Messages (ANSI versions not done yet)
27 + EM_AUTOURLDETECT 2.0
28 + EM_CANPASTE
29 + EM_CANREDO 2.0
30 + EM_CANUNDO
31 + EM_CHARFROMPOS
32 - EM_DISPLAYBAND
33 + EM_EMPTYUNDOBUFFER
34 + EM_EXGETSEL
35 + EM_EXLIMITTEXT
36 + EM_EXLINEFROMCHAR
37 + EM_EXSETSEL
38 + EM_FINDTEXT (only FR_DOWN flag implemented)
39 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
40 - EM_FINDWORDBREAK
41 - EM_FMTLINES
42 - EM_FORMATRANGE
43 + EM_GETAUTOURLDETECT 2.0
44 - EM_GETBIDIOPTIONS 3.0
45 - EM_GETCHARFORMAT (partly done)
46 - EM_GETEDITSTYLE
47 + EM_GETEVENTMASK
48 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
49 - EM_GETIMECOLOR 1.0asian
50 - EM_GETIMECOMPMODE 2.0
51 - EM_GETIMEOPTIONS 1.0asian
52 - EM_GETIMESTATUS
53 - EM_GETLANGOPTIONS 2.0
54 + EM_GETLIMITTEXT
55 + EM_GETLINE
56 + EM_GETLINECOUNT returns number of rows, not of paragraphs
57 + EM_GETMODIFY
58 - EM_GETOLEINTERFACE
59 + EM_GETOPTIONS
60 + EM_GETPARAFORMAT
61 + EM_GETPASSWORDCHAR 2.0
62 - EM_GETPUNCTUATION 1.0asian
63 + EM_GETRECT
64 - EM_GETREDONAME 2.0
65 + EM_GETSEL
66 + EM_GETSELTEXT (ANSI&Unicode)
67 + EM_GETSCROLLPOS 3.0 (only Y value valid)
68 ! - EM_GETTHUMB
69 + EM_GETTEXTEX 2.0
70 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
71 - EM_GETTEXTMODE 2.0
72 ? + EM_GETTEXTRANGE (ANSI&Unicode)
73 - EM_GETTYPOGRAPHYOPTIONS 3.0
74 - EM_GETUNDONAME
75 + EM_GETWORDBREAKPROC
76 - EM_GETWORDBREAKPROCEX
77 - EM_GETWORDWRAPMODE 1.0asian
78 + EM_GETZOOM 3.0
79 + EM_HIDESELECTION
80 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
81 + EM_LINEFROMCHAR
82 + EM_LINEINDEX
83 + EM_LINELENGTH
84 + EM_LINESCROLL
85 - EM_PASTESPECIAL
86 + EM_POSFROMCHAR
87 + EM_REDO 2.0
88 + EM_REQUESTRESIZE
89 + EM_REPLACESEL (proper style?) ANSI&Unicode
90 + EM_SCROLL
91 + EM_SCROLLCARET
92 - EM_SELECTIONTYPE
93 - EM_SETBIDIOPTIONS 3.0
94 + EM_SETBKGNDCOLOR
95 + EM_SETCHARFORMAT (partly done, no ANSI)
96 - EM_SETEDITSTYLE
97 + EM_SETEVENTMASK (few notifications supported)
98 - EM_SETFONTSIZE
99 - EM_SETIMECOLOR 1.0asian
100 - EM_SETIMEOPTIONS 1.0asian
101 - EM_SETLANGOPTIONS 2.0
102 - EM_SETLIMITTEXT
103 + EM_SETMODIFY (not sure if implementation is correct)
104 - EM_SETOLECALLBACK
105 + EM_SETOPTIONS (partially implemented)
106 - EM_SETPALETTE 2.0
107 + EM_SETPARAFORMAT
108 + EM_SETPASSWORDCHAR 2.0
109 - EM_SETPUNCTUATION 1.0asian
110 + EM_SETREADONLY no beep on modification attempt
111 + EM_SETRECT
112 + EM_SETRECTNP (EM_SETRECT without repainting)
113 + EM_SETSEL
114 + EM_SETSCROLLPOS 3.0
115 - EM_SETTABSTOPS 3.0
116 - EM_SETTARGETDEVICE
117 + EM_SETTEXTEX 3.0 (no rich text insertion handling, proper style?)
118 - EM_SETTEXTMODE 2.0
119 - EM_SETTYPOGRAPHYOPTIONS 3.0
120 + EM_SETUNDOLIMIT 2.0
121 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
122 - EM_SETWORDBREAKPROCEX
123 - EM_SETWORDWRAPMODE 1.0asian
124 + EM_SETZOOM 3.0
125 + EM_SHOWSCROLLBAR 2.0
126 - EM_STOPGROUPTYPING 2.0
127 + EM_STREAMIN
128 + EM_STREAMOUT
129 + EM_UNDO
130 + WM_CHAR
131 + WM_CLEAR
132 + WM_COPY
133 + WM_CUT
134 + WM_GETDLGCODE (the current implementation is incomplete)
135 + WM_GETTEXT (ANSI&Unicode)
136 + WM_GETTEXTLENGTH (ANSI version sucks)
137 + WM_PASTE
138 + WM_SETFONT
139 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
140 - WM_STYLECHANGING
141 - WM_STYLECHANGED (things like read-only flag)
142 - WM_UNICHAR
143
144 Notifications
145
146 * EN_CHANGE (sent from the wrong place)
147 - EN_CORRECTTEXT
148 - EN_DROPFILES
149 - EN_ERRSPACE
150 - EN_HSCROLL
151 - EN_IMECHANGE
152 + EN_KILLFOCUS
153 - EN_LINK
154 - EN_MAXTEXT
155 - EN_MSGFILTER
156 - EN_OLEOPFAILED
157 - EN_PROTECTED
158 + EN_REQUESTRESIZE
159 - EN_SAVECLIPBOARD
160 + EN_SELCHANGE
161 + EN_SETFOCUS
162 - EN_STOPNOUNDO
163 * EN_UPDATE (sent from the wrong place)
164 - EN_VSCROLL
165
166 Styles
167
168 - ES_AUTOHSCROLL
169 - ES_AUTOVSCROLL
170 - ES_CENTER
171 + ES_DISABLENOSCROLL (scrollbar is always visible)
172 - ES_EX_NOCALLOLEINIT
173 - ES_LEFT
174 - ES_MULTILINE (currently single line controls aren't supported)
175 - ES_NOIME
176 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
177 - ES_RIGHT
178 - ES_SAVESEL
179 - ES_SELFIME
180 - ES_SUNKEN
181 - ES_VERTICAL
182 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
183 - WS_SETFONT
184 - WS_HSCROLL
185 + WS_VSCROLL
186 */
187
188 /*
189 * RICHED20 TODO (incomplete):
190 *
191 * - messages/styles/notifications listed above
192 * - Undo coalescing
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 static HCURSOR hBeam;
248
249 int me_debug = 0;
250 HANDLE me_heap = NULL;
251
252 static BOOL ME_ListBoxRegistered = FALSE;
253 static BOOL ME_ComboBoxRegistered = FALSE;
254
255 static inline int is_version_nt(void)
256 {
257 return !(GetVersion() & 0x80000000);
258 }
259
260 static ME_TextBuffer *ME_MakeText(void) {
261
262 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
263
264 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
265 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
266
267 p1->prev = NULL;
268 p1->next = p2;
269 p2->prev = p1;
270 p2->next = NULL;
271 p1->member.para.next_para = p2;
272 p2->member.para.prev_para = p1;
273 p2->member.para.nCharOfs = 0;
274
275 buf->pFirst = p1;
276 buf->pLast = p2;
277 buf->pCharStyle = NULL;
278
279 return buf;
280 }
281
282
283 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
284 {
285 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
286 WCHAR *pText;
287
288 TRACE("%08x %p\n", dwFormat, stream);
289
290 do {
291 long nWideChars = 0;
292
293 if (!stream->dwSize)
294 {
295 ME_StreamInFill(stream);
296 if (stream->editstream->dwError)
297 break;
298 if (!stream->dwSize)
299 break;
300 }
301
302 if (!(dwFormat & SF_UNICODE))
303 {
304 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
305 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
306 pText = wszText;
307 }
308 else
309 {
310 nWideChars = stream->dwSize >> 1;
311 pText = (WCHAR *)stream->buffer;
312 }
313
314 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
315 if (stream->dwSize == 0)
316 break;
317 stream->dwSize = 0;
318 } while(1);
319 ME_CommitUndo(editor);
320 ME_UpdateRepaint(editor);
321 return 0;
322 }
323
324 static void ME_RTFCharAttrHook(RTF_Info *info)
325 {
326 CHARFORMAT2W fmt;
327 fmt.cbSize = sizeof(fmt);
328 fmt.dwMask = 0;
329 fmt.dwEffects = 0;
330
331 switch(info->rtfMinor)
332 {
333 case rtfPlain:
334 /* FIXME add more flags once they're implemented */
335 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
336 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
337 fmt.yHeight = 12*20; /* 12pt */
338 fmt.wWeight = 400;
339 fmt.bUnderlineType = CFU_UNDERLINENONE;
340 break;
341 case rtfBold:
342 fmt.dwMask = CFM_BOLD;
343 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
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 }
423 }
424 break;
425 case rtfFontSize:
426 fmt.dwMask = CFM_SIZE;
427 if (info->rtfParam != rtfNoParam)
428 fmt.yHeight = info->rtfParam*10;
429 break;
430 }
431 if (fmt.dwMask) {
432 ME_Style *style2;
433 RTFFlushOutputBuffer(info);
434 /* FIXME too slow ? how come ? */
435 style2 = ME_ApplyStyle(info->style, &fmt);
436 ME_ReleaseStyle(info->style);
437 info->style = style2;
438 info->styleChanged = TRUE;
439 }
440 }
441
442 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
443 the same tags mean different things in different contexts */
444 static void ME_RTFParAttrHook(RTF_Info *info)
445 {
446 PARAFORMAT2 fmt;
447 fmt.cbSize = sizeof(fmt);
448 fmt.dwMask = 0;
449
450 switch(info->rtfMinor)
451 {
452 case rtfParDef: /* restores default paragraph attributes */
453 fmt.dwMask = PFM_ALIGNMENT | PFM_TABSTOPS | PFM_OFFSET | PFM_STARTINDENT;
454 fmt.wAlignment = PFA_LEFT;
455 fmt.cTabCount = 0;
456 fmt.dxOffset = fmt.dxStartIndent = 0;
457 RTFFlushOutputBuffer(info);
458 ME_GetParagraph(info->editor->pCursors[0].pRun)->member.para.bTable = FALSE;
459 break;
460 case rtfInTable:
461 {
462 ME_DisplayItem *para;
463
464 RTFFlushOutputBuffer(info);
465 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
466 assert(para->member.para.pCells);
467 para->member.para.bTable = TRUE;
468 return;
469 }
470 case rtfFirstIndent:
471 ME_GetSelectionParaFormat(info->editor, &fmt);
472 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
473 fmt.dxStartIndent += info->rtfParam + fmt.dxOffset;
474 fmt.dxOffset = -info->rtfParam;
475 break;
476 case rtfLeftIndent:
477 ME_GetSelectionParaFormat(info->editor, &fmt);
478 fmt.dwMask = PFM_STARTINDENT;
479 fmt.dxStartIndent = -fmt.dxOffset + info->rtfParam;
480 break;
481 case rtfRightIndent:
482 fmt.dwMask = PFM_RIGHTINDENT;
483 fmt.dxRightIndent = info->rtfParam;
484 break;
485 case rtfQuadLeft:
486 case rtfQuadJust:
487 fmt.dwMask = PFM_ALIGNMENT;
488 fmt.wAlignment = PFA_LEFT;
489 break;
490 case rtfQuadRight:
491 fmt.dwMask = PFM_ALIGNMENT;
492 fmt.wAlignment = PFA_RIGHT;
493 break;
494 case rtfQuadCenter:
495 fmt.dwMask = PFM_ALIGNMENT;
496 fmt.wAlignment = PFA_CENTER;
497 break;
498 case rtfTabPos:
499 ME_GetSelectionParaFormat(info->editor, &fmt);
500 if (!(fmt.dwMask & PFM_TABSTOPS))
501 {
502 fmt.dwMask |= PFM_TABSTOPS;
503 fmt.cTabCount = 0;
504 }
505 if (fmt.cTabCount < MAX_TAB_STOPS)
506 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
507 break;
508 }
509 if (fmt.dwMask) {
510 RTFFlushOutputBuffer(info);
511 /* FIXME too slow ? how come ?*/
512 ME_SetSelectionParaFormat(info->editor, &fmt);
513 }
514 }
515
516 static void ME_RTFTblAttrHook(RTF_Info *info)
517 {
518 ME_DisplayItem *para;
519
520 switch (info->rtfMinor)
521 {
522 case rtfRowDef:
523 RTFFlushOutputBuffer(info);
524 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
525
526 /* Release possibly inherited cell definitions */
527 ME_DestroyTableCellList(para);
528
529 para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
530 para->member.para.pCells->nRightBoundary = 0;
531 para->member.para.pCells->next = NULL;
532 para->member.para.pLastCell = para->member.para.pCells;
533 break;
534 case rtfCellPos:
535 RTFFlushOutputBuffer(info);
536 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
537
538 if (para->member.para.pLastCell->nRightBoundary)
539 {
540 ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
541
542 pCell->next = NULL;
543 para->member.para.pLastCell->next = pCell;
544 para->member.para.pLastCell = pCell;
545 }
546 para->member.para.pLastCell->nRightBoundary = info->rtfParam;
547 break;
548 }
549 }
550
551 static void ME_RTFReadHook(RTF_Info *info) {
552 switch(info->rtfClass)
553 {
554 case rtfGroup:
555 switch(info->rtfMajor)
556 {
557 case rtfBeginGroup:
558 if (info->stackTop < maxStack) {
559 memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
560 info->stack[info->stackTop].codePage = info->codePage;
561 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
562 }
563 info->stackTop++;
564 info->styleChanged = FALSE;
565 break;
566 case rtfEndGroup:
567 {
568 ME_Style *s;
569 RTFFlushOutputBuffer(info);
570 if (info->stackTop<=1) {
571 info->rtfClass = rtfEOF;
572 return;
573 }
574 info->stackTop--;
575 assert(info->stackTop >= 0);
576 if (info->styleChanged)
577 {
578 /* FIXME too slow ? how come ? */
579 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
580 ME_ReleaseStyle(info->style);
581 info->style = s;
582 info->codePage = info->stack[info->stackTop].codePage;
583 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
584 }
585 break;
586 }
587 }
588 break;
589 case rtfControl:
590 switch(info->rtfMajor)
591 {
592 case rtfCharAttr:
593 ME_RTFCharAttrHook(info);
594 break;
595 case rtfParAttr:
596 ME_RTFParAttrHook(info);
597 break;
598 case rtfTblAttr:
599 ME_RTFTblAttrHook(info);
600 break;
601 case rtfSpecialChar:
602 if (info->rtfMinor == rtfCell)
603 {
604 RTFFlushOutputBuffer(info);
605 ME_InsertTableCellFromCursor(info->editor, 0);
606 }
607 }
608 break;
609 }
610 }
611
612 void
613 ME_StreamInFill(ME_InStream *stream)
614 {
615 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
616 (BYTE *)stream->buffer,
617 sizeof(stream->buffer),
618 (LONG *)&stream->dwSize);
619 stream->dwUsed = 0;
620 }
621
622 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
623 {
624 RTF_Info parser;
625 ME_Style *style;
626 int from, to, to2, nUndoMode;
627 int nEventMask = editor->nEventMask;
628 ME_InStream inStream;
629
630 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, (UINT)format);
631 editor->nEventMask = 0;
632
633 ME_GetSelection(editor, &from, &to);
634 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
635 style = ME_GetSelectionInsertStyle(editor);
636
637 ME_InternalDeleteText(editor, from, to-from);
638 }
639 else {
640 style = editor->pBuffer->pDefaultStyle;
641 ME_AddRefStyle(style);
642 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
643 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
644 from = to = 0;
645 ME_ClearTempStyle(editor);
646 /* FIXME restore default paragraph formatting ! */
647 }
648
649
650 /* Back up undo mode to a local variable */
651 nUndoMode = editor->nUndoMode;
652
653 /* Only create an undo if SFF_SELECTION is set */
654 if (!(format & SFF_SELECTION))
655 editor->nUndoMode = umIgnore;
656
657 inStream.editstream = stream;
658 inStream.editstream->dwError = 0;
659 inStream.dwSize = 0;
660 inStream.dwUsed = 0;
661
662 if (format & SF_RTF)
663 {
664 /* Check if it's really RTF, and if it is not, use plain text */
665 ME_StreamInFill(&inStream);
666 if (!inStream.editstream->dwError)
667 {
668 if (strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
669 {
670 format &= ~SF_RTF;
671 format |= SF_TEXT;
672 }
673 }
674 }
675
676 if (!inStream.editstream->dwError)
677 {
678 if (format & SF_RTF) {
679 /* setup the RTF parser */
680 memset(&parser, 0, sizeof parser);
681 RTFSetEditStream(&parser, &inStream);
682 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
683 parser.hwndEdit = editor->hWnd;
684 parser.editor = editor;
685 parser.style = style;
686 WriterInit(&parser);
687 RTFInit(&parser);
688 RTFSetReadHook(&parser, ME_RTFReadHook);
689 BeginFile(&parser);
690
691 /* do the parsing */
692 RTFRead(&parser);
693 RTFFlushOutputBuffer(&parser);
694 RTFDestroy(&parser);
695
696 style = parser.style;
697 }
698 else if (format & SF_TEXT)
699 ME_StreamInText(editor, format, &inStream, style);
700 else
701 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
702 ME_GetSelection(editor, &to, &to2);
703 /* put the cursor at the top */
704 if (!(format & SFF_SELECTION))
705 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
706 }
707
708 /* Restore saved undo mode */
709 editor->nUndoMode = nUndoMode;
710
711 /* even if we didn't add an undo, we need to commit anything on the stack */
712 ME_CommitUndo(editor);
713
714 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
715 if (!(format & SFF_SELECTION))
716 ME_EmptyUndoStack(editor);
717
718 ME_ReleaseStyle(style);
719 editor->nEventMask = nEventMask;
720 if (editor->bRedraw)
721 {
722 ME_UpdateRepaint(editor);
723 }
724 if (!(format & SFF_SELECTION)) {
725 ME_ClearTempStyle(editor);
726 }
727 ME_MoveCaret(editor);
728 ME_SendSelChange(editor);
729 ME_SendRequestResize(editor, FALSE);
730
731 return 0;
732 }
733
734
735 typedef struct tagME_RTFStringStreamStruct
736 {
737 char *string;
738 int pos;
739 int length;
740 } ME_RTFStringStreamStruct;
741
742 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
743 {
744 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
745 int count;
746
747 count = min(cb, pStruct->length - pStruct->pos);
748 memmove(lpBuff, pStruct->string + pStruct->pos, count);
749 pStruct->pos += count;
750 *pcb = count;
751 return 0;
752 }
753
754 static void
755 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
756 {
757 EDITSTREAM es;
758 ME_RTFStringStreamStruct data;
759
760 data.string = string;
761 data.length = strlen(string);
762 data.pos = 0;
763 es.dwCookie = (DWORD)&data;
764 es.pfnCallback = ME_ReadFromRTFString;
765 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es);
766 }
767
768
769 ME_DisplayItem *
770 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
771 {
772 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
773
774 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
775 item = ME_FindItemFwd(item, diParagraph);
776
777 if (!item)
778 return item;
779
780 nOffset -= item->member.para.nCharOfs;
781 if (nItemType == diParagraph) {
782 if (nItemOffset)
783 *nItemOffset = nOffset;
784 return item;
785 }
786
787 do {
788 item = ME_FindItemFwd(item, diRun);
789 } while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
790 if (item) {
791 nOffset -= item->member.run.nCharOfs;
792 if (nItemOffset)
793 *nItemOffset = nOffset;
794 }
795 return item;
796 }
797
798
799 static int
800 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
801 {
802 const int nLen = lstrlenW(text);
803 const int nTextLen = ME_GetTextLength(editor);
804 int nStart, nEnd;
805 int nMin, nMax;
806 ME_DisplayItem *item;
807 ME_DisplayItem *para;
808 WCHAR wLastChar = ' ';
809
810 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
811 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
812
813 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
814 FIXME("Flags 0x%08x not implemented\n",
815 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
816
817 nMin = chrg->cpMin;
818 if (chrg->cpMax == -1)
819 nMax = nTextLen;
820 else
821 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
822
823 /* when searching up, if cpMin < cpMax, then instead of searching
824 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
825 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
826 * case, it is always bigger than cpMin.
827 */
828 if (!(flags & FR_DOWN))
829 {
830 int nSwap = nMax;
831
832 nMax = nMin > nTextLen ? nTextLen : nMin;
833 if (nMin < nSwap || chrg->cpMax == -1)
834 nMin = 0;
835 else
836 nMin = nSwap;
837 }
838
839 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
840 {
841 if (chrgText)
842 chrgText->cpMin = chrgText->cpMax = -1;
843 return -1;
844 }
845
846 if (flags & FR_DOWN) /* Forward search */
847 {
848 /* If possible, find the character before where the search starts */
849 if ((flags & FR_WHOLEWORD) && nMin)
850 {
851 nStart = nMin - 1;
852 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
853 if (!item)
854 {
855 if (chrgText)
856 chrgText->cpMin = chrgText->cpMax = -1;
857 return -1;
858 }
859 wLastChar = item->member.run.strText->szData[nStart];
860 }
861
862 nStart = nMin;
863 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
864 if (!item)
865 {
866 if (chrgText)
867 chrgText->cpMin = chrgText->cpMax = -1;
868 return -1;
869 }
870
871 para = ME_GetParagraph(item);
872 while (item
873 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
874 {
875 ME_DisplayItem *pCurItem = item;
876 int nCurStart = nStart;
877 int nMatched = 0;
878
879 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
880 {
881 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
882 break;
883
884 nMatched++;
885 if (nMatched == nLen)
886 {
887 ME_DisplayItem *pNextItem = pCurItem;
888 int nNextStart = nCurStart;
889 WCHAR wNextChar;
890
891 /* Check to see if next character is a whitespace */
892 if (flags & FR_WHOLEWORD)
893 {
894 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
895 {
896 pNextItem = ME_FindItemFwd(pCurItem, diRun);
897 nNextStart = -nMatched;
898 }
899
900 if (pNextItem)
901 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
902 else
903 wNextChar = ' ';
904
905 if (isalnumW(wNextChar))
906 break;
907 }
908
909 nStart += para->member.para.nCharOfs + pCurItem->member.run.nCharOfs;
910 if (chrgText)
911 {
912 chrgText->cpMin = nStart;
913 chrgText->cpMax = nStart + nLen;
914 }
915 TRACE("found at %d-%d\n", nStart, nStart + nLen);
916 return nStart;
917 }
918 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
919 {
920 pCurItem = ME_FindItemFwd(pCurItem, diRun);
921 para = ME_GetParagraph(pCurItem);
922 nCurStart = -nMatched;
923 }
924 }
925 if (pCurItem)
926 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
927 else
928 wLastChar = ' ';
929
930 nStart++;
931 if (nStart == ME_StrLen(item->member.run.strText))
932 {
933 item = ME_FindItemFwd(item, diRun);
934 para = ME_GetParagraph(item);
935 nStart = 0;
936 }
937 }
938 }
939 else /* Backward search */
940 {
941 /* If possible, find the character after where the search ends */
942 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
943 {
944 nEnd = nMax + 1;
945 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
946 if (!item)
947 {
948 if (chrgText)
949 chrgText->cpMin = chrgText->cpMax = -1;
950 return -1;
951 }
952 wLastChar = item->member.run.strText->szData[nEnd];
953 }
954
955 nEnd = nMax;
956 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
957 if (!item)
958 {
959 if (chrgText)
960 chrgText->cpMin = chrgText->cpMax = -1;
961 return -1;
962 }
963
964 para = ME_GetParagraph(item);
965
966 while (item
967 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
968 {
969 ME_DisplayItem *pCurItem = item;
970 int nCurEnd = nEnd;
971 int nMatched = 0;
972
973 if (nCurEnd - nMatched == 0)
974 {
975 pCurItem = ME_FindItemBack(pCurItem, diRun);
976 para = ME_GetParagraph(pCurItem);
977 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
978 }
979
980 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
981 {
982 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
983 break;
984
985 nMatched++;
986 if (nMatched == nLen)
987 {
988 ME_DisplayItem *pPrevItem = pCurItem;
989 int nPrevEnd = nCurEnd;
990 WCHAR wPrevChar;
991
992 /* Check to see if previous character is a whitespace */
993 if (flags & FR_WHOLEWORD)
994 {
995 if (nPrevEnd - nMatched == 0)
996 {
997 pPrevItem = ME_FindItemBack(pCurItem, diRun);
998 if (pPrevItem)
999 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1000 }
1001
1002 if (pPrevItem)
1003 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1004 else
1005 wPrevChar = ' ';
1006
1007 if (isalnumW(wPrevChar))
1008 break;
1009 }
1010
1011 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1012 if (chrgText)
1013 {
1014 chrgText->cpMin = nStart;
1015 chrgText->cpMax = nStart + nLen;
1016 }
1017 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1018 return nStart;
1019 }
1020 if (nCurEnd - nMatched == 0)
1021 {
1022 pCurItem = ME_FindItemBack(pCurItem, diRun);
1023 /* Don't care about pCurItem becoming NULL here; it's already taken
1024 * care of in the exterior loop condition */
1025 para = ME_GetParagraph(pCurItem);
1026 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1027 }
1028 }
1029 if (pCurItem)
1030 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1031 else
1032 wLastChar = ' ';
1033
1034 nEnd--;
1035 if (nEnd < 0)
1036 {
1037 item = ME_FindItemBack(item, diRun);
1038 para = ME_GetParagraph(item);
1039 nEnd = ME_StrLen(item->member.run.strText);
1040 }
1041 }
1042 }
1043 TRACE("not found\n");
1044 if (chrgText)
1045 chrgText->cpMin = chrgText->cpMax = -1;
1046 return -1;
1047 }
1048
1049 /* helper to send a msg filter notification */
1050 static BOOL
1051 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1052 {
1053 MSGFILTER msgf;
1054
1055 msgf.nmhdr.hwndFrom = editor->hWnd;
1056 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1057 msgf.nmhdr.code = EN_MSGFILTER;
1058 msgf.msg = msg;
1059
1060 msgf.wParam = *wParam;
1061 msgf.lParam = *lParam;
1062 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1063 return FALSE;
1064 *wParam = msgf.wParam;
1065 *lParam = msgf.lParam;
1066 msgf.wParam = *wParam;
1067
1068 return TRUE;
1069 }
1070
1071 static BOOL
1072 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1073 {
1074 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1075 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1076
1077 switch (nKey)
1078 {
1079 case VK_LEFT:
1080 case VK_RIGHT:
1081 case VK_UP:
1082 case VK_DOWN:
1083 case VK_HOME:
1084 case VK_END:
1085 case VK_PRIOR:
1086 case VK_NEXT:
1087 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1088 return TRUE;
1089 case VK_BACK:
1090 case VK_DELETE:
1091 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1092 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1093 return FALSE;
1094 if (ME_IsSelection(editor))
1095 ME_DeleteSelection(editor);
1096 else if (nKey == VK_DELETE || ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1097 ME_DeleteTextAtCursor(editor, 1, 1);
1098 else
1099 return TRUE;
1100 ME_CommitUndo(editor);
1101 ME_UpdateRepaint(editor);
1102 ME_SendRequestResize(editor, FALSE);
1103 return TRUE;
1104
1105 default:
1106 if (ctrl_is_down)
1107 {
1108 if (nKey == 'W')
1109 {
1110 CHARFORMAT2W chf;
1111 char buf[2048];
1112 chf.cbSize = sizeof(chf);
1113
1114 ME_GetSelectionCharFormat(editor, &chf);
1115 ME_DumpStyleToBuf(&chf, buf);
1116 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1117 }
1118 if (nKey == 'Q')
1119 {
1120 ME_CheckCharOffsets(editor);
1121 }
1122 }
1123 }
1124 return FALSE;
1125 }
1126
1127 static void ME_SetCursor(ME_TextEditor *editor, int x)
1128 {
1129 if (x < editor->selofs || editor->linesel)
1130 SetCursor(hLeft);
1131 else
1132 SetCursor(hBeam);
1133 }
1134
1135 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1136 {
1137 CHARRANGE selrange;
1138 HMENU menu;
1139 int seltype = 0;
1140 if(!editor->lpOleCallback)
1141 return FALSE;
1142 ME_GetSelection(editor, (int *)&selrange.cpMin, (int *)&selrange.cpMax);
1143 if(selrange.cpMin == selrange.cpMax)
1144 seltype |= SEL_EMPTY;
1145 else
1146 {
1147 /* FIXME: Handle objects */
1148 seltype |= SEL_TEXT;
1149 if(selrange.cpMax-selrange.cpMin > 1)
1150 seltype |= SEL_MULTICHAR;
1151 }
1152 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1153 {
1154 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1155 DestroyMenu(menu);
1156 }
1157 return TRUE;
1158 }
1159
1160 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1161 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1162 HDC hDC;
1163 int i;
1164 ed->hWnd = hWnd;
1165 ed->bEmulateVersion10 = FALSE;
1166 ed->pBuffer = ME_MakeText();
1167 hDC = GetDC(hWnd);
1168 ME_MakeFirstParagraph(hDC, ed->pBuffer);
1169 ReleaseDC(hWnd, hDC);
1170 ed->bCaretShown = FALSE;
1171 ed->nCursors = 4;
1172 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1173 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1174 ed->pCursors[0].nOffset = 0;
1175 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1176 ed->pCursors[1].nOffset = 0;
1177 ed->nLastTotalLength = ed->nTotalLength = 0;
1178 ed->nHeight = 0;
1179 ed->nUDArrowX = -1;
1180 ed->nSequence = 0;
1181 ed->rgbBackColor = -1;
1182 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1183 ed->bCaretAtEnd = FALSE;
1184 ed->nEventMask = 0;
1185 ed->nModifyStep = 0;
1186 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1187 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1188 ed->nUndoStackSize = 0;
1189 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1190 ed->nUndoMode = umAddToUndo;
1191 ed->nParagraphs = 1;
1192 ed->nLastSelStart = ed->nLastSelEnd = 0;
1193 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1194 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1195 ed->bRedraw = TRUE;
1196 ed->bHideSelection = FALSE;
1197 ed->nInvalidOfs = -1;
1198 ed->pfnWordBreak = NULL;
1199 ed->lpOleCallback = NULL;
1200 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1201 ed->AutoURLDetect_bEnable = FALSE;
1202 ed->bHaveFocus = FALSE;
1203 GetClientRect(hWnd, &ed->rcFormat);
1204 for (i=0; i<HFONT_CACHE_SIZE; i++)
1205 {
1206 ed->pFontCache[i].nRefs = 0;
1207 ed->pFontCache[i].nAge = 0;
1208 ed->pFontCache[i].hFont = NULL;
1209 }
1210
1211 ME_CheckCharOffsets(ed);
1212 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
1213 ed->selofs = 16;
1214 else
1215 ed->selofs = 0;
1216 ed->linesel = 0;
1217
1218 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1219 ed->cPasswordMask = '*';
1220 else
1221 ed->cPasswordMask = 0;
1222
1223 return ed;
1224 }
1225
1226 typedef struct tagME_GlobalDestStruct
1227 {
1228 HGLOBAL hData;
1229 int nLength;
1230 } ME_GlobalDestStruct;
1231
1232 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1233 {
1234 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1235 int i;
1236 WORD *pSrc, *pDest;
1237
1238 cb = cb >> 1;
1239 pDest = (WORD *)lpBuff;
1240 pSrc = (WORD *)GlobalLock(pData->hData);
1241 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1242 pDest[i] = pSrc[pData->nLength+i];
1243 }
1244 pData->nLength += i;
1245 *pcb = 2*i;
1246 GlobalUnlock(pData->hData);
1247 return 0;
1248 }
1249
1250 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1251 {
1252 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1253 int i;
1254 BYTE *pSrc, *pDest;
1255
1256 pDest = lpBuff;
1257 pSrc = (BYTE *)GlobalLock(pData->hData);
1258 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1259 pDest[i] = pSrc[pData->nLength+i];
1260 }
1261 pData->nLength += i;
1262 *pcb = i;
1263 GlobalUnlock(pData->hData);
1264 return 0;
1265 }
1266
1267
1268 void ME_DestroyEditor(ME_TextEditor *editor)
1269 {
1270 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1271 ME_DisplayItem *p = pFirst, *pNext = NULL;
1272 int i;
1273
1274 ME_ClearTempStyle(editor);
1275 ME_EmptyUndoStack(editor);
1276 while(p) {
1277 pNext = p->next;
1278 ME_DestroyDisplayItem(p);
1279 p = pNext;
1280 }
1281 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1282 for (i=0; i<HFONT_CACHE_SIZE; i++)
1283 {
1284 if (editor->pFontCache[i].hFont)
1285 DeleteObject(editor->pFontCache[i].hFont);
1286 }
1287 if (editor->rgbBackColor != -1)
1288 DeleteObject(editor->hbrBackground);
1289 if(editor->lpOleCallback)
1290 IUnknown_Release(editor->lpOleCallback);
1291
1292 FREE_OBJ(editor->pBuffer);
1293 FREE_OBJ(editor->pCursors);
1294
1295 FREE_OBJ(editor);
1296 }
1297
1298 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1299 {
1300 TRACE("\n");
1301 switch (fdwReason)
1302 {
1303 case DLL_PROCESS_ATTACH:
1304 DisableThreadLibraryCalls(hinstDLL);
1305 me_heap = HeapCreate (0, 0x10000, 0);
1306 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1307 hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
1308 hBeam = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
1309 LookupInit();
1310 break;
1311
1312 case DLL_PROCESS_DETACH:
1313 UnregisterClassW(RichEdit20W, 0);
1314 UnregisterClassW(RichEdit50W, 0);
1315 UnregisterClassA("RichEdit20A", 0);
1316 UnregisterClassA("RichEdit50A", 0);
1317 if (ME_ListBoxRegistered)
1318 UnregisterClassW(REListBox20W, 0);
1319 if (ME_ComboBoxRegistered)
1320 UnregisterClassW(REComboBox20W, 0);
1321 LookupCleanup();
1322 HeapDestroy (me_heap);
1323 me_heap = NULL;
1324 break;
1325 }
1326 return TRUE;
1327 }
1328
1329
1330 #define UNSUPPORTED_MSG(e) \
1331 case e: \
1332 FIXME(#e ": stub\n"); \
1333 return DefWindowProcW(hWnd, msg, wParam, lParam);
1334
1335 static const char * const edit_messages[] = {
1336 "EM_GETSEL",
1337 "EM_SETSEL",
1338 "EM_GETRECT",
1339 "EM_SETRECT",
1340 "EM_SETRECTNP",
1341 "EM_SCROLL",
1342 "EM_LINESCROLL",
1343 "EM_SCROLLCARET",
1344 "EM_GETMODIFY",
1345 "EM_SETMODIFY",
1346 "EM_GETLINECOUNT",
1347 "EM_LINEINDEX",
1348 "EM_SETHANDLE",
1349 "EM_GETHANDLE",
1350 "EM_GETTHUMB",
1351 "EM_UNKNOWN_BF",
1352 "EM_UNKNOWN_C0",
1353 "EM_LINELENGTH",
1354 "EM_REPLACESEL",
1355 "EM_UNKNOWN_C3",
1356 "EM_GETLINE",
1357 "EM_LIMITTEXT",
1358 "EM_CANUNDO",
1359 "EM_UNDO",
1360 "EM_FMTLINES",
1361 "EM_LINEFROMCHAR",
1362 "EM_UNKNOWN_CA",
1363 "EM_SETTABSTOPS",
1364 "EM_SETPASSWORDCHAR",
1365 "EM_EMPTYUNDOBUFFER",
1366 "EM_GETFIRSTVISIBLELINE",
1367 "EM_SETREADONLY",
1368 "EM_SETWORDBREAKPROC",
1369 "EM_GETWORDBREAKPROC",
1370 "EM_GETPASSWORDCHAR",
1371 "EM_SETMARGINS",
1372 "EM_GETMARGINS",
1373 "EM_GETLIMITTEXT",
1374 "EM_POSFROMCHAR",
1375 "EM_CHARFROMPOS"
1376 };
1377
1378 static const char * const richedit_messages[] = {
1379 "EM_CANPASTE",
1380 "EM_DISPLAYBAND",
1381 "EM_EXGETSEL",
1382 "EM_EXLIMITTEXT",
1383 "EM_EXLINEFROMCHAR",
1384 "EM_EXSETSEL",
1385 "EM_FINDTEXT",
1386 "EM_FORMATRANGE",
1387 "EM_GETCHARFORMAT",
1388 "EM_GETEVENTMASK",
1389 "EM_GETOLEINTERFACE",
1390 "EM_GETPARAFORMAT",
1391 "EM_GETSELTEXT",
1392 "EM_HIDESELECTION",
1393 "EM_PASTESPECIAL",
1394 "EM_REQUESTRESIZE",
1395 "EM_SELECTIONTYPE",
1396 "EM_SETBKGNDCOLOR",
1397 "EM_SETCHARFORMAT",
1398 "EM_SETEVENTMASK",
1399 "EM_SETOLECALLBACK",
1400 "EM_SETPARAFORMAT",
1401 "EM_SETTARGETDEVICE",
1402 "EM_STREAMIN",
1403 "EM_STREAMOUT",
1404 "EM_GETTEXTRANGE",
1405 "EM_FINDWORDBREAK",
1406 "EM_SETOPTIONS",
1407 "EM_GETOPTIONS",
1408 "EM_FINDTEXTEX",
1409 "EM_GETWORDBREAKPROCEX",
1410 "EM_SETWORDBREAKPROCEX",
1411 "EM_SETUNDOLIMIT",
1412 "EM_UNKNOWN_USER_83",
1413 "EM_REDO",
1414 "EM_CANREDO",
1415 "EM_GETUNDONAME",
1416 "EM_GETREDONAME",
1417 "EM_STOPGROUPTYPING",
1418 "EM_SETTEXTMODE",
1419 "EM_GETTEXTMODE",
1420 "EM_AUTOURLDETECT",
1421 "EM_GETAUTOURLDETECT",
1422 "EM_SETPALETTE",
1423 "EM_GETTEXTEX",
1424 "EM_GETTEXTLENGTHEX",
1425 "EM_SHOWSCROLLBAR",
1426 "EM_SETTEXTEX",
1427 "EM_UNKNOWN_USER_98",
1428 "EM_UNKNOWN_USER_99",
1429 "EM_SETPUNCTUATION",
1430 "EM_GETPUNCTUATION",
1431 "EM_SETWORDWRAPMODE",
1432 "EM_GETWORDWRAPMODE",
1433 "EM_SETIMECOLOR",
1434 "EM_GETIMECOLOR",
1435 "EM_SETIMEOPTIONS",
1436 "EM_GETIMEOPTIONS",
1437 "EM_CONVPOSITION",
1438 "EM_UNKNOWN_USER_109",
1439 "EM_UNKNOWN_USER_110",
1440 "EM_UNKNOWN_USER_111",
1441 "EM_UNKNOWN_USER_112",
1442 "EM_UNKNOWN_USER_113",
1443 "EM_UNKNOWN_USER_114",
1444 "EM_UNKNOWN_USER_115",
1445 "EM_UNKNOWN_USER_116",
1446 "EM_UNKNOWN_USER_117",
1447 "EM_UNKNOWN_USER_118",
1448 "EM_UNKNOWN_USER_119",
1449 "EM_SETLANGOPTIONS",
1450 "EM_GETLANGOPTIONS",
1451 "EM_GETIMECOMPMODE",
1452 "EM_FINDTEXTW",
1453 "EM_FINDTEXTEXW",
1454 "EM_RECONVERSION",
1455 "EM_SETIMEMODEBIAS",
1456 "EM_GETIMEMODEBIAS"
1457 };
1458
1459 static const char *
1460 get_msg_name(UINT msg)
1461 {
1462 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
1463 return edit_messages[msg - EM_GETSEL];
1464 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
1465 return richedit_messages[msg - EM_CANPASTE];
1466 return "";
1467 }
1468
1469 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
1470 LPARAM lParam, BOOL unicode)
1471 {
1472 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
1473
1474 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
1475 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
1476
1477 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
1478 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
1479 return 0;
1480 }
1481
1482 switch(msg) {
1483
1484 UNSUPPORTED_MSG(EM_DISPLAYBAND)
1485 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
1486 UNSUPPORTED_MSG(EM_FMTLINES)
1487 UNSUPPORTED_MSG(EM_FORMATRANGE)
1488 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
1489 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
1490 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
1491 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
1492 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
1493 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
1494 UNSUPPORTED_MSG(EM_GETREDONAME)
1495 UNSUPPORTED_MSG(EM_GETTEXTMODE)
1496 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
1497 UNSUPPORTED_MSG(EM_GETUNDONAME)
1498 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
1499 UNSUPPORTED_MSG(EM_PASTESPECIAL)
1500 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
1501 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
1502 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
1503 UNSUPPORTED_MSG(EM_SETFONTSIZE)
1504 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
1505 UNSUPPORTED_MSG(EM_SETPALETTE)
1506 UNSUPPORTED_MSG(EM_SETTABSTOPS)
1507 UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
1508 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
1509 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
1510 UNSUPPORTED_MSG(WM_STYLECHANGING)
1511 UNSUPPORTED_MSG(WM_STYLECHANGED)
1512 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
1513
1514 /* Messages specific to Richedit controls */
1515
1516 case EM_STREAMIN:
1517 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam);
1518 case EM_STREAMOUT:
1519 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
1520 case WM_GETDLGCODE:
1521 {
1522 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
1523 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
1524 {
1525 int vk = (int)((LPMSG)lParam)->wParam;
1526 /* if style says we want return key */
1527 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
1528 {
1529 code |= DLGC_WANTMESSAGE;
1530 }
1531 /* we always handle ctrl-tab */
1532 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
1533 {
1534 code |= DLGC_WANTMESSAGE;
1535 }
1536 }
1537 return code;
1538 }
1539 case WM_NCCREATE:
1540 {
1541 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
1542 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
1543 editor = ME_MakeEditor(hWnd);
1544 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
1545 return TRUE;
1546 }
1547 case EM_EMPTYUNDOBUFFER:
1548 ME_EmptyUndoStack(editor);
1549 return 0;
1550 case EM_GETSEL:
1551 {
1552 /* Note: wParam/lParam can be NULL */
1553 UINT from, to;
1554 PUINT pfrom = wParam ? (PUINT)wParam : &from;
1555 PUINT pto = lParam ? (PUINT)lParam : &to;
1556 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
1557 if ((*pfrom|*pto) & 0xFFFF0000)
1558 return -1;
1559 return MAKELONG(*pfrom,*pto);
1560 }
1561 case EM_EXGETSEL:
1562 {
1563 CHARRANGE *pRange = (CHARRANGE *)lParam;
1564 ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
1565 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
1566 return 0;
1567 }
1568 case EM_SETUNDOLIMIT:
1569 {
1570 if ((int)wParam < 0)
1571 editor->nUndoLimit = STACK_SIZE_DEFAULT;
1572 else
1573 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
1574 /* Setting a max stack size keeps wine from getting killed
1575 for hogging memory. Windows allocates all this memory at once, so
1576 no program would realistically set a value above our maximum. */
1577 return editor->nUndoLimit;
1578 }
1579 case EM_CANUNDO:
1580 return editor->pUndoStack != NULL;
1581 case EM_CANREDO:
1582 return editor->pRedoStack != NULL;
1583 case WM_UNDO: /* FIXME: actually not the same */
1584 case EM_UNDO:
1585 ME_Undo(editor);
1586 return 0;
1587 case EM_REDO:
1588 ME_Redo(editor);
1589 return 0;
1590 case EM_GETOPTIONS:
1591 {
1592 /* these flags are equivalent to the ES_* counterparts */
1593 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
1594 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
1595 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
1596
1597 return settings;
1598 }
1599 case EM_SETOPTIONS:
1600 {
1601 /* these flags are equivalent to ES_* counterparts
1602 * ECO_READONLY is already implemented in the code, only requires
1603 * setting the bit to work
1604 */
1605 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
1606 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
1607 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
1608 DWORD settings = mask & raw;
1609
1610 switch(wParam)
1611 {
1612 case ECOOP_SET:
1613 settings = lParam;
1614 break;
1615 case ECOOP_OR:
1616 settings |= lParam;
1617 break;
1618 case ECOOP_AND:
1619 settings &= lParam;
1620 break;
1621 case ECOOP_XOR:
1622 settings ^= lParam;
1623 }
1624 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
1625
1626 if (settings & ECO_AUTOWORDSELECTION)
1627 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
1628 if (settings & ECO_SELECTIONBAR)
1629 editor->selofs = 16;
1630 else
1631 editor->selofs = 0;
1632 ME_WrapMarkedParagraphs(editor);
1633
1634 if (settings & ECO_VERTICAL)
1635 FIXME("ECO_VERTICAL not implemented yet!\n");
1636 if (settings & ECO_AUTOHSCROLL)
1637 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
1638 if (settings & ECO_AUTOVSCROLL)
1639 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
1640 if (settings & ECO_NOHIDESEL)
1641 FIXME("ECO_NOHIDESEL not implemented yet!\n");
1642 if (settings & ECO_WANTRETURN)
1643 FIXME("ECO_WANTRETURN not implemented yet!\n");
1644
1645 return settings;
1646 }
1647 case EM_SETSEL:
1648 {
1649 ME_InvalidateSelection(editor);
1650 ME_SetSelection(editor, wParam, lParam);
1651 ME_InvalidateSelection(editor);
1652 ME_SendSelChange(editor);
1653 return 0;
1654 }
1655 case EM_SETSCROLLPOS:
1656 {
1657 POINT *point = (POINT *)lParam;
1658 ME_ScrollAbs(editor, point->y);
1659 return 0;
1660 }
1661 case EM_AUTOURLDETECT:
1662 {
1663 if (wParam==1 || wParam ==0)
1664 {
1665 editor->AutoURLDetect_bEnable = (BOOL)wParam;
1666 return 0;
1667 }
1668 return E_INVALIDARG;
1669 }
1670 case EM_GETAUTOURLDETECT:
1671 {
1672 return editor->AutoURLDetect_bEnable;
1673 }
1674 case EM_EXSETSEL:
1675 {
1676 int end;
1677 CHARRANGE range = *(CHARRANGE *)lParam;
1678
1679 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
1680
1681 ME_InvalidateSelection(editor);
1682 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
1683 ME_InvalidateSelection(editor);
1684 ME_SendSelChange(editor);
1685
1686 return end;
1687 }
1688 case EM_SHOWSCROLLBAR:
1689 {
1690 ShowScrollBar(editor->hWnd, wParam, lParam);
1691 return 0;
1692 }
1693 case EM_SETTEXTEX:
1694 {
1695 LPWSTR wszText;
1696 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
1697 size_t len;
1698 int from, to;
1699 ME_Style *style;
1700 int oldModify = editor->nModifyStep;
1701
1702 if (!pStruct) return 0;
1703
1704 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
1705 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
1706 pStruct->flags, pStruct->codepage);
1707
1708 /* FIXME: make use of pStruct->codepage in the to unicode translation */
1709 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
1710 len = wszText ? lstrlenW(wszText) : 0;
1711
1712 /* FIXME: this should support RTF strings too, according to MSDN */
1713 if (pStruct->flags & ST_SELECTION) {
1714 ME_GetSelection(editor, &from, &to);
1715 style = ME_GetSelectionInsertStyle(editor);
1716 ME_InternalDeleteText(editor, from, to - from);
1717 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1718 ME_ReleaseStyle(style);
1719 }
1720 else {
1721 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1722 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
1723 len = 1;
1724 }
1725 ME_CommitUndo(editor);
1726 if (!(pStruct->flags & ST_KEEPUNDO))
1727 {
1728 editor->nModifyStep = oldModify;
1729 ME_EmptyUndoStack(editor);
1730 }
1731 ME_UpdateRepaint(editor);
1732 return len;
1733 }
1734 case EM_SETBKGNDCOLOR:
1735 {
1736 LRESULT lColor;
1737 if (editor->rgbBackColor != -1) {
1738 DeleteObject(editor->hbrBackground);
1739 lColor = editor->rgbBackColor;
1740 }
1741 else lColor = GetSysColor(COLOR_WINDOW);
1742
1743 if (wParam)
1744 {
1745 editor->rgbBackColor = -1;
1746 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1747 }
1748 else
1749 {
1750 editor->rgbBackColor = lParam;
1751 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
1752 }
1753 if (editor->bRedraw)
1754 {
1755 InvalidateRect(hWnd, NULL, TRUE);
1756 UpdateWindow(hWnd);
1757 }
1758 return lColor;
1759 }
1760 case EM_GETMODIFY:
1761 return editor->nModifyStep == 0 ? 0 : 1;
1762 case EM_SETMODIFY:
1763 {
1764 if (wParam)
1765 editor->nModifyStep = 1;
1766 else
1767 editor->nModifyStep = 0;
1768
1769 return 0;
1770 }
1771 case EM_SETREADONLY:
1772 {
1773 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
1774 if (wParam)
1775 nStyle |= ES_READONLY;
1776 else
1777 nStyle &= ~ES_READONLY;
1778 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
1779 return 0;
1780 }
1781 case EM_SETEVENTMASK:
1782 {
1783 DWORD nOldMask = editor->nEventMask;
1784
1785 editor->nEventMask = lParam;
1786 return nOldMask;
1787 }
1788 case EM_GETEVENTMASK:
1789 return editor->nEventMask;
1790 case EM_SETCHARFORMAT:
1791 {
1792 CHARFORMAT2W buf, *p;
1793 BOOL bRepaint = TRUE;
1794 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
1795 if (p == NULL) return 0;
1796 if (!wParam)
1797 ME_SetDefaultCharFormat(editor, p);
1798 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
1799 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
1800 return 0;
1801 } else if (wParam == SCF_ALL) {
1802 if (editor->mode & TM_PLAINTEXT)
1803 ME_SetDefaultCharFormat(editor, p);
1804 else
1805 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
1806 } else if (editor->mode & TM_PLAINTEXT) {
1807 return 0;
1808 } else {
1809 int from, to;
1810 ME_GetSelection(editor, &from, &to);
1811 bRepaint = (from != to);
1812 ME_SetSelectionCharFormat(editor, p);
1813 }
1814 editor->nModifyStep = 1;
1815 ME_CommitUndo(editor);
1816 if (bRepaint)
1817 ME_RewrapRepaint(editor);
1818 return 1;
1819 }
1820 case EM_GETCHARFORMAT:
1821 {
1822 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
1823 if (dst->cbSize != sizeof(CHARFORMATA) &&
1824 dst->cbSize != sizeof(CHARFORMATW) &&
1825 dst->cbSize != sizeof(CHARFORMAT2A) &&
1826 dst->cbSize != sizeof(CHARFORMAT2W))
1827 return 0;
1828 tmp.cbSize = sizeof(tmp);
1829 if (!wParam)
1830 ME_GetDefaultCharFormat(editor, &tmp);
1831 else
1832 ME_GetSelectionCharFormat(editor, &tmp);
1833 ME_CopyToCFAny(dst, &tmp);
1834 return tmp.dwMask;
1835 }
1836 case EM_SETPARAFORMAT:
1837 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1838 ME_RewrapRepaint(editor);
1839 ME_CommitUndo(editor);
1840 return 0;
1841 case EM_GETPARAFORMAT:
1842 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1843 return 0;
1844 case EM_GETFIRSTVISIBLELINE:
1845 {
1846 ME_DisplayItem *p = editor->pBuffer->pFirst;
1847 int y = ME_GetYScrollPos(editor);
1848 int ypara = 0;
1849 int count = 0;
1850 int ystart, yend;
1851 while(p) {
1852 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
1853 if (p->type == diTextEnd)
1854 break;
1855 if (p->type == diParagraph) {
1856 ypara = p->member.para.nYPos;
1857 continue;
1858 }
1859 ystart = ypara + p->member.row.nYPos;
1860 yend = ystart + p->member.row.nHeight;
1861 if (y < yend) {
1862 break;
1863 }
1864 count++;
1865 }
1866 return count;
1867 }
1868 case EM_HIDESELECTION:
1869 {
1870 editor->bHideSelection = (wParam != 0);
1871 ME_InvalidateSelection(editor);
1872 return 0;
1873 }
1874 case EM_LINESCROLL:
1875 {
1876 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
1877 return TRUE; /* Should return false if a single line richedit control */
1878 }
1879 case WM_CLEAR:
1880 {
1881 int from, to;
1882 ME_GetSelection(editor, &from, &to);
1883 ME_InternalDeleteText(editor, from, to-from);
1884 ME_CommitUndo(editor);
1885 ME_UpdateRepaint(editor);
1886 return 0;
1887 }
1888 case EM_REPLACESEL:
1889 {
1890 int from, to;
1891 ME_Style *style;
1892 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
1893 size_t len = wszText ? lstrlenW(wszText) : 0;
1894 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
1895
1896 ME_GetSelection(editor, &from, &to);
1897 style = ME_GetSelectionInsertStyle(editor);
1898 ME_InternalDeleteText(editor, from, to-from);
1899 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1900 ME_ReleaseStyle(style);
1901 /* drop temporary style if line end */
1902 /*
1903 * FIXME question: does abc\n mean: put abc,
1904 * clear temp style, put \n? (would require a change)
1905 */
1906 if (len>0 && wszText[len-1] == '\n')
1907 ME_ClearTempStyle(editor);
1908 ME_EndToUnicode(unicode, wszText);
1909 ME_CommitUndo(editor);
1910 if (!wParam)
1911 ME_EmptyUndoStack(editor);
1912 ME_UpdateRepaint(editor);
1913 return len;
1914 }
1915 case EM_SCROLLCARET:
1916 {
1917 int top, bottom; /* row's edges relative to document top */
1918 int nPos;
1919 ME_DisplayItem *para, *row;
1920
1921 nPos = ME_GetYScrollPos(editor);
1922 row = ME_RowStart(editor->pCursors[0].pRun);
1923 para = ME_GetParagraph(row);
1924 top = para->member.para.nYPos + row->member.row.nYPos;
1925 bottom = top + row->member.row.nHeight;
1926
1927 if (top < nPos) /* caret above window */
1928 ME_ScrollAbs(editor, top);
1929 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
1930 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
1931 return 0;
1932 }
1933 case WM_SETFONT:
1934 {
1935 LOGFONTW lf;
1936 CHARFORMAT2W fmt;
1937 HDC hDC;
1938 BOOL bRepaint = LOWORD(lParam);
1939
1940 if (!wParam)
1941 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
1942 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
1943 hDC = GetDC(hWnd);
1944 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
1945 ReleaseDC(hWnd, hDC);
1946 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
1947 ME_SetDefaultCharFormat(editor, &fmt);
1948
1949 ME_CommitUndo(editor);
1950 if (bRepaint)
1951 ME_RewrapRepaint(editor);
1952 return 0;
1953 }
1954 case WM_SETTEXT:
1955 {
1956 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1957 if (lParam)
1958 {
1959 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
1960 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
1961 {
1962 /* Undocumented: WM_SETTEXT supports RTF text */
1963 ME_StreamInRTFString(editor, 0, (char *)lParam);
1964 }
1965 else
1966 {
1967 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
1968 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
1969 if (lstrlenW(wszText) > 0)
1970 {
1971 int len = -1;
1972
1973 /* uses default style! */
1974 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
1975 {
1976 WCHAR * p;
1977
1978 p = wszText;
1979 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
1980 len = p - wszText;
1981 }
1982 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
1983 }
1984 ME_EndToUnicode(unicode, wszText);
1985 }
1986 }
1987 else
1988 TRACE("WM_SETTEXT - NULL\n");
1989 ME_CommitUndo(editor);
1990 ME_EmptyUndoStack(editor);
1991 ME_SetSelection(editor, 0, 0);
1992 editor->nModifyStep = 0;
1993 ME_UpdateRepaint(editor);
1994 return 1;
1995 }
1996 case EM_CANPASTE:
1997 {
1998 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1999 if (IsClipboardFormatAvailable(nRTFFormat))
2000 return TRUE;
2001 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2002 return TRUE;
2003 return FALSE;
2004 }
2005 case WM_PASTE:
2006 {
2007 DWORD dwFormat = 0;
2008 EDITSTREAM es;
2009 ME_GlobalDestStruct gds;
2010 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
2011 UINT cf = 0;
2012
2013 if (IsClipboardFormatAvailable(nRTFFormat))
2014 cf = nRTFFormat, dwFormat = SF_RTF;
2015 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
2016 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
2017 else
2018 return 0;
2019
2020 if (!OpenClipboard(hWnd))
2021 return 0;
2022 gds.hData = GetClipboardData(cf);
2023 gds.nLength = 0;
2024 es.dwCookie = (DWORD)&gds;
2025 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
2026 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es);
2027
2028 CloseClipboard();
2029 return 0;
2030 }
2031 case WM_CUT:
2032 case WM_COPY:
2033 {
2034 LPDATAOBJECT dataObj = NULL;
2035 CHARRANGE range;
2036 HRESULT hr = S_OK;
2037
2038 if (editor->cPasswordMask)
2039 return 0; /* Copying or Cutting masked text isn't allowed */
2040
2041 ME_GetSelection(editor, (int*)&range.cpMin, (int*)&range.cpMax);
2042 if(editor->lpOleCallback)
2043 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
2044 if(FAILED(hr) || !dataObj)
2045 hr = ME_GetDataObject(editor, &range, &dataObj);
2046 if(SUCCEEDED(hr)) {
2047 hr = OleSetClipboard(dataObj);
2048 IDataObject_Release(dataObj);
2049 }
2050 if (SUCCEEDED(hr) && msg == WM_CUT)
2051 {
2052 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
2053 ME_CommitUndo(editor);
2054 ME_UpdateRepaint(editor);
2055 }
2056 return 0;
2057 }
2058 case WM_GETTEXTLENGTH:
2059 {
2060 GETTEXTLENGTHEX how;
2061
2062 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
2063 how.codepage = unicode ? 1200 : CP_ACP;
2064 return ME_GetTextLengthEx(editor, &how);
2065 }
2066 case EM_GETTEXTLENGTHEX:
2067 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2068 case WM_GETTEXT:
2069 {
2070 GETTEXTEX ex;
2071 LRESULT rc;
2072 LPSTR bufferA = NULL;
2073 LPWSTR bufferW = NULL;
2074
2075 if (unicode)
2076 bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
2077 else
2078 bufferA = heap_alloc(wParam + 2);
2079
2080 ex.cb = wParam + (unicode ? 2*sizeof(WCHAR) : 2);
2081 ex.flags = GT_USECRLF;
2082 ex.codepage = unicode ? 1200 : CP_ACP;
2083 ex.lpDefaultChar = NULL;
2084 ex.lpUsedDefaultChar = NULL;
2085 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2086
2087 if (unicode)
2088 {
2089 memcpy((LPWSTR)lParam, bufferW, wParam);
2090 if (lstrlenW(bufferW) >= wParam / sizeof(WCHAR)) rc = 0;
2091 }
2092 else
2093 {
2094 memcpy((LPSTR)lParam, bufferA, wParam);
2095 if (strlen(bufferA) >= wParam) rc = 0;
2096 }
2097 heap_free(bufferA);
2098 heap_free(bufferW);
2099 return rc;
2100 }
2101 case EM_GETTEXTEX:
2102 {
2103 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2104 int nStart, nCount;
2105
2106 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2107 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2108
2109 if (ex->flags & GT_SELECTION)
2110 {
2111 ME_GetSelection(editor, &nStart, &nCount);
2112 nCount -= nStart;
2113 nCount = min(nCount, ex->cb - 1);
2114 }
2115 else
2116 {
2117 nStart = 0;
2118 nCount = ex->cb - 1;
2119 }
2120 if (ex->codepage == 1200)
2121 {
2122 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2123 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2124 }
2125 else
2126 {
2127 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2128 we can just take a bigger buffer? :) */
2129 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2130 LPWSTR buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2131 DWORD buflen = ex->cb;
2132 LRESULT rc;
2133 DWORD flags = 0;
2134
2135 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2136 rc = WideCharToMultiByte(ex->codepage, flags, buffer, -1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefaultChar);
2137 if (rc) rc--; /* do not count 0 terminator */
2138
2139 heap_free(buffer);
2140 return rc;
2141 }
2142 }
2143 case EM_GETSELTEXT:
2144 {
2145 int from, to;
2146 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2147 ME_GetSelection(editor, &from, &to);
2148 tr.chrg.cpMin = from;
2149 tr.chrg.cpMax = to;
2150 tr.lpstrText = (WCHAR *)lParam;
2151 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2152 }
2153 case EM_GETSCROLLPOS:
2154 {
2155 POINT *point = (POINT *)lParam;
2156 point->x = 0; /* FIXME side scrolling not implemented */
2157 point->y = ME_GetYScrollPos(editor);
2158 return 1;
2159 }
2160 case EM_GETTEXTRANGE:
2161 {
2162 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2163 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2164 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2165 editor->bEmulateVersion10, ME_GetTextLength(editor));
2166 if (unicode)
2167 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, editor->bEmulateVersion10);
2168 else
2169 {
2170 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2171 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2172 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, editor->bEmulateVersion10);
2173 /* FIXME this is a potential security hole (buffer overrun)
2174 if you know more about wchar->mbyte conversion please explain
2175 */
2176 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2177 FREE_OBJ(p);
2178 return nChars;
2179 }
2180 }
2181 case EM_GETLINE:
2182 {
2183 ME_DisplayItem *run;
2184 const unsigned int nMaxChars = *(WORD *) lParam;
2185 unsigned int nEndChars, nCharsLeft = nMaxChars;
2186 char *dest = (char *) lParam;
2187 /* rich text editor 1.0 uses \r\n for line end, 2.0 uses just \r;
2188 we need to know how if we have the extra \n or not */
2189 int nLF = editor->bEmulateVersion10;
2190
2191 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2192 unicode ? "Unicode" : "Ansi");
2193
2194 run = ME_FindRowWithNumber(editor, wParam);
2195 if (run == NULL)
2196 return 0;
2197
2198 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2199 && !(run->member.run.nFlags & MERF_ENDPARA))
2200 {
2201 unsigned int nCopy;
2202 ME_String *strText;
2203 if (run->type != diRun)
2204 break;
2205 strText = run->member.run.strText;
2206 nCopy = min(nCharsLeft, strText->nLen);
2207
2208 if (unicode)
2209 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2210 else
2211 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2212 nCharsLeft, NULL, NULL);
2213 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2214 nCharsLeft -= nCopy;
2215 }
2216
2217 /* append \r\0 (or \r\n\0 in 1.0), space allowing */
2218 nEndChars = min(nCharsLeft, 2 + nLF);
2219 nCharsLeft -= nEndChars;
2220 if (unicode)
2221 {
2222 const WCHAR src[] = {'\r', '\0'};
2223 const WCHAR src10[] = {'\r', '\n', '\0'};
2224 lstrcpynW((LPWSTR) dest, nLF ? src10 : src, nEndChars);
2225 }
2226 else
2227 lstrcpynA(dest, nLF ? "\r\n" : "\r", nEndChars);
2228
2229 TRACE("EM_GETLINE: got %u bytes\n", nMaxChars - nCharsLeft);
2230
2231 if (nEndChars == 2 + nLF)
2232 return nMaxChars - nCharsLeft - 1; /* don't count \0 */
2233 else
2234 return nMaxChars - nCharsLeft;
2235 }
2236 case EM_GETLINECOUNT:
2237 {
2238 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2239 int nRows = 0;
2240
2241 while (item != editor->pBuffer->pLast)
2242 {
2243 assert(item->type == diParagraph);
2244 nRows += item->member.para.nRows;
2245 item = item->member.para.next_para;
2246 }
2247 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2248 return max(1, nRows);
2249 }
2250 case EM_LINEFROMCHAR:
2251 {
2252 if (wParam == -1)
2253 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2254 else
2255 return ME_RowNumberFromCharOfs(editor, wParam);
2256 }
2257 case EM_EXLINEFROMCHAR:
2258 {
2259 if (lParam == -1)
2260 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2261 else
2262 return ME_RowNumberFromCharOfs(editor, lParam);
2263 }
2264 case EM_LINEINDEX:
2265 {
2266 ME_DisplayItem *item, *para;
2267 int nCharOfs;
2268
2269 if (wParam == -1)
2270 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2271 else
2272 item = ME_FindRowWithNumber(editor, wParam);
2273 if (!item)
2274 return -1;
2275 para = ME_GetParagraph(item);
2276 item = ME_FindItemFwd(item, diRun);
2277 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2278 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2279 return nCharOfs;
2280 }
2281 case EM_LINELENGTH:
2282 {
2283 ME_DisplayItem *item, *item_end;
2284 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2285
2286 if (wParam > ME_GetTextLength(editor))
2287 return 0;
2288 if (wParam == -1)
2289 {
2290 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2291 return 0;
2292 }
2293 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2294 item = ME_RowStart(item);
2295 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2296 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2297 if (item_end->type == diStartRow)
2298 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2299 else
2300 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs
2301 - (editor->bEmulateVersion10?2:1);
2302 nChars = nNextLineOfs - nThisLineOfs;
2303 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2304 return nChars;
2305 }
2306 case EM_EXLIMITTEXT:
2307 {
2308 if ((int)lParam < 0)
2309 return 0;
2310 if (lParam == 0)
2311 editor->nTextLimit = 65536;
2312 else
2313 editor->nTextLimit = (int) lParam;
2314 return 0;
2315 }
2316 case EM_LIMITTEXT:
2317 {
2318 if (wParam == 0)
2319 editor->nTextLimit = 65536;
2320 else
2321 editor->nTextLimit = (int) wParam;
2322 return 0;
2323 }
2324 case EM_GETLIMITTEXT:
2325 {
2326 return editor->nTextLimit;
2327 }
2328 case EM_FINDTEXT:
2329 {
2330 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2331 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2332 WCHAR *tmp;
2333 LRESULT r;
2334
2335 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2336 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2337 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2338 FREE_OBJ( tmp );
2339 return r;
2340 }
2341 case EM_FINDTEXTEX:
2342 {
2343 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2344 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2345 WCHAR *tmp;
2346 LRESULT r;
2347
2348 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2349 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
2350 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
2351 FREE_OBJ( tmp );
2352 return r;
2353 }
2354 case EM_FINDTEXTW:
2355 {
2356 FINDTEXTW *ft = (FINDTEXTW *)lParam;
2357 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
2358 }
2359 case EM_FINDTEXTEXW:
2360 {
2361 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
2362 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
2363 }
2364 case EM_GETZOOM:
2365 if (!wParam || !lParam)
2366 return FALSE;
2367 *(int *)wParam = editor->nZoomNumerator;
2368 *(int *)lParam = editor->nZoomDenominator;
2369 return TRUE;
2370 case EM_SETZOOM:
2371 return ME_SetZoom(editor, wParam, lParam);
2372 case EM_CHARFROMPOS:
2373 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
2374 case EM_POSFROMCHAR:
2375 {
2376 ME_DisplayItem *pRun;
2377 int nCharOfs, nOffset, nLength;
2378 POINTL pt = {0,0};
2379
2380 nCharOfs = wParam;
2381 /* detect which API version we're dealing with */
2382 if (wParam >= 0x40000)
2383 nCharOfs = lParam;
2384 nLength = ME_GetTextLength(editor);
2385
2386 if (nCharOfs < nLength) {
2387 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
2388 assert(pRun->type == diRun);
2389 pt.y = pRun->member.run.pt.y;
2390 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
2391 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
2392 } else {
2393 pt.x = 0;
2394 pt.y = editor->pBuffer->pLast->member.para.nYPos;
2395 }
2396 if (wParam >= 0x40000) {
2397 *(POINTL *)wParam = pt;
2398 }
2399 return MAKELONG( pt.x, pt.y );
2400 }
2401 case WM_CREATE:
2402 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
2403 { /* Squelch the default horizontal scrollbar it would make */
2404 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
2405 }
2406 ME_CommitUndo(editor);
2407 ME_WrapMarkedParagraphs(editor);
2408 ME_MoveCaret(editor);
2409 return 0;
2410 case WM_DESTROY:
2411 ME_DestroyEditor(editor);
2412 SetWindowLongPtrW(hWnd, 0, 0);
2413 return 0;
2414 case WM_LBUTTONDOWN:
2415 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2416 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2417 return 0;
2418 SetFocus(hWnd);
2419 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2420 SetCapture(hWnd);
2421 ME_LinkNotify(editor,msg,wParam,lParam);
2422 ME_SetCursor(editor, LOWORD(lParam));
2423 break;
2424 case WM_MOUSEMOVE:
2425 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2426 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2427 return 0;
2428 if (GetCapture() == hWnd)
2429 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2430 ME_LinkNotify(editor,msg,wParam,lParam);
2431 ME_SetCursor(editor, LOWORD(lParam));
2432 break;
2433 case WM_LBUTTONUP:
2434 if (GetCapture() == hWnd)
2435 ReleaseCapture();
2436 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2437 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2438 return 0;
2439 editor->linesel = 0;
2440 ME_SetCursor(editor, LOWORD(lParam));
2441 ME_LinkNotify(editor,msg,wParam,lParam);
2442 break;
2443 case WM_LBUTTONDBLCLK:
2444 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2445 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2446 return 0;
2447 ME_LinkNotify(editor,msg,wParam,lParam);
2448 ME_SelectWord(editor);
2449 break;
2450 case WM_RBUTTONUP:
2451 case WM_RBUTTONDOWN:
2452 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2453 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2454 return 0;
2455 goto do_default;
2456 case WM_CONTEXTMENU:
2457 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
2458 goto do_default;
2459 break;
2460 case WM_PAINT:
2461 if (editor->bRedraw)
2462 {
2463 HDC hDC;
2464 PAINTSTRUCT ps;
2465
2466 hDC = BeginPaint(hWnd, &ps);
2467 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
2468 EndPaint(hWnd, &ps);
2469 }
2470 break;
2471 case WM_SETFOCUS:
2472 editor->bHaveFocus = TRUE;
2473 ME_ShowCaret(editor);
2474 ME_SendOldNotify(editor, EN_SETFOCUS);
2475 return 0;
2476 case WM_KILLFOCUS:
2477 ME_HideCaret(editor);
2478 editor->bHaveFocus = FALSE;
2479 ME_SendOldNotify(editor, EN_KILLFOCUS);
2480 return 0;
2481 case WM_ERASEBKGND:
2482 {
2483 if (editor->bRedraw)
2484 {
2485 HDC hDC = (HDC)wParam;
2486 RECT rc;
2487 if (GetUpdateRect(hWnd,&rc,TRUE))
2488 {
2489 FillRect(hDC, &rc, editor->hbrBackground);
2490 }
2491 }
2492 return 1;
2493 }
2494 case WM_COMMAND:
2495 TRACE("editor wnd command = %d\n", LOWORD(wParam));
2496 return 0;
2497 case WM_KEYUP:
2498 if ((editor->nEventMask & ENM_KEYEVENTS) &&
2499 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2500 return 0;
2501 goto do_default;
2502 case WM_KEYDOWN:
2503 if ((editor->nEventMask & ENM_KEYEVENTS) &&
2504 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2505 return 0;
2506 if (ME_KeyDown(editor, LOWORD(wParam)))
2507 return 0;
2508 goto do_default;
2509 case WM_CHAR:
2510 {
2511 WCHAR wstr;
2512
2513 if (unicode)
2514 wstr = (WCHAR)wParam;
2515 else
2516 {
2517 CHAR charA = wParam;
2518 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2519 }
2520 if (editor->AutoURLDetect_bEnable)
2521 ME_AutoURLDetect(editor, wstr);
2522
2523 switch (wstr)
2524 {
2525 case 1: /* Ctrl-A */
2526 ME_SetSelection(editor, 0, -1);
2527 return 0;
2528 case 3: /* Ctrl-C */
2529 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
2530 return 0;
2531 }
2532
2533 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
2534 MessageBeep(MB_ICONERROR);
2535 return 0; /* FIXME really 0 ? */
2536 }
2537
2538 switch (wstr)
2539 {
2540 case 22: /* Ctrl-V */
2541 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
2542 return 0;
2543 case 24: /* Ctrl-X */
2544 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
2545 return 0;
2546 case 25: /* Ctrl-Y */
2547 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
2548 return 0;
2549 case 26: /* Ctrl-Z */
2550 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
2551 return 0;
2552 }
2553 if (((unsigned)wstr)>=' '
2554 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2555 || wstr=='\t') {
2556 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2557 /* WM_CHAR is restricted to nTextLimit */
2558 int from, to;
2559 ME_GetSelection(editor, &from, &to);
2560 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2561 {
2562 ME_Style *style = ME_GetInsertStyle(editor, 0);
2563 ME_SaveTempStyle(editor);
2564 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2565 ME_ReleaseStyle(style);
2566 ME_CommitUndo(editor);
2567 }
2568 ME_UpdateRepaint(editor);
2569 }
2570 return 0;
2571 }
2572 case EM_SCROLL: /* fall through */
2573 case WM_VSCROLL:
2574 {
2575 int origNPos;
2576 int lineHeight;
2577
2578 origNPos = ME_GetYScrollPos(editor);
2579 lineHeight = 24;
2580
2581 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
2582 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
2583 if (lineHeight <= 0) lineHeight = 24;
2584
2585 switch(LOWORD(wParam))
2586 {
2587 case SB_LINEUP:
2588 ME_ScrollUp(editor,lineHeight);
2589 break;
2590 case SB_LINEDOWN:
2591 ME_ScrollDown(editor,lineHeight);
2592 break;
2593 case SB_PAGEUP:
2594 ME_ScrollUp(editor,editor->sizeWindow.cy);
2595 break;
2596 case SB_PAGEDOWN:
2597 ME_ScrollDown(editor,editor->sizeWindow.cy);
2598 break;
2599 case SB_THUMBTRACK:
2600 case SB_THUMBPOSITION:
2601 ME_ScrollAbs(editor,HIWORD(wParam));
2602 break;
2603 }
2604 if (msg == EM_SCROLL)
2605 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
2606 break;
2607 }
2608 case WM_MOUSEWHEEL:
2609 {
2610 int gcWheelDelta;
2611 UINT pulScrollLines;
2612
2613 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2614 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2615 return 0;
2616
2617 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
2618 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
2619
2620 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
2621 {
2622 /* FIXME follow the original */
2623 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
2624 }
2625 break;
2626 }
2627 case EM_GETRECT:
2628 {
2629 *((RECT *)lParam) = editor->rcFormat;
2630 return 0;
2631 }
2632 case EM_SETRECT:
2633 case EM_SETRECTNP:
2634 {
2635 if (lParam)
2636 {
2637 RECT *rc = (RECT *)lParam;
2638
2639 if (wParam)
2640 {
2641 editor->rcFormat.left += rc->left;
2642 editor->rcFormat.top += rc->top;
2643 editor->rcFormat.right += rc->right;
2644 editor->rcFormat.bottom += rc->bottom;
2645 }
2646 else
2647 {
2648 editor->rcFormat = *rc;
2649 }
2650 }
2651 else
2652 {
2653 GetClientRect(hWnd, &editor->rcFormat);
2654 }
2655 if (msg != EM_SETRECTNP)
2656 ME_RewrapRepaint(editor);
2657 return 0;
2658 }
2659 case EM_REQUESTRESIZE:
2660 ME_SendRequestResize(editor, TRUE);
2661 return 0;
2662 case WM_SETREDRAW:
2663 editor->bRedraw = wParam;
2664 return 0;
2665 case WM_SIZE:
2666 {
2667 GetClientRect(hWnd, &editor->rcFormat);
2668 ME_RewrapRepaint(editor);
2669 return DefWindowProcW(hWnd, msg, wParam, lParam);
2670 }
2671 /* IME messages to make richedit controls IME aware */
2672 case WM_IME_SETCONTEXT:
2673 case WM_IME_CONTROL:
2674 case WM_IME_SELECT:
2675 case WM_IME_COMPOSITIONFULL:
2676 return 0;
2677 case WM_IME_STARTCOMPOSITION:
2678 {
2679 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
2680 ME_DeleteSelection(editor);
2681 ME_CommitUndo(editor);
2682 ME_UpdateRepaint(editor);
2683 return 0;
2684 }
2685 case WM_IME_COMPOSITION:
2686 {
2687 HIMC hIMC;
2688
2689 ME_Style *style = ME_GetInsertStyle(editor, 0);
2690 hIMC = ImmGetContext(hWnd);
2691 ME_DeleteSelection(editor);
2692 ME_CommitUndo(editor);
2693 ME_SaveTempStyle(editor);
2694 if (lParam & GCS_RESULTSTR)
2695 {
2696 LPWSTR lpCompStr = NULL;
2697 DWORD dwBufLen;
2698
2699 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
2700 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2701 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
2702 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2703 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2704 }
2705 else if (lParam & GCS_COMPSTR)
2706 {
2707 LPWSTR lpCompStr = NULL;
2708 DWORD dwBufLen;
2709
2710 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
2711 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2712 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
2713 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2714
2715 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2716 ME_SetSelection(editor,editor->imeStartIndex,
2717 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
2718 }
2719 ME_ReleaseStyle(style);
2720 ME_UpdateRepaint(editor);
2721 return 0;
2722 }
2723 case WM_IME_ENDCOMPOSITION:
2724 {
2725 ME_DeleteSelection(editor);
2726 editor->imeStartIndex=-1;
2727 return 0;
2728 }
2729 case EM_GETOLEINTERFACE:
2730 {
2731 LPVOID *ppvObj = (LPVOID*) lParam;
2732 return CreateIRichEditOle(editor, ppvObj);
2733 }
2734 case EM_GETPASSWORDCHAR:
2735 {
2736 return editor->cPasswordMask;
2737 }
2738 case EM_SETOLECALLBACK:
2739 if(editor->lpOleCallback)
2740 IUnknown_Release(editor->lpOleCallback);
2741 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
2742 if(editor->lpOleCallback)
2743 IUnknown_AddRef(editor->lpOleCallback);
2744 return TRUE;
2745 case EM_GETWORDBREAKPROC:
2746 return (LRESULT)editor->pfnWordBreak;
2747 case EM_SETWORDBREAKPROC:
2748 {
2749 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
2750
2751 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
2752 return (LRESULT)pfnOld;
2753 }
2754 case EM_SETTEXTMODE:
2755 {
2756 LRESULT ret;
2757 int mask = 0;
2758 int changes = 0;
2759 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
2760 if (!ret)
2761 {
2762 /*Check for valid wParam*/
2763 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
2764 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
2765 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
2766 return 1;
2767 else
2768 {
2769 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
2770 {
2771 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
2772 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
2773 }
2774 /*FIXME: Currently no support for undo level and code page options*/
2775 editor->mode = (editor->mode & (~mask)) | changes;
2776 return 0;
2777 }
2778 }
2779 return ret;
2780 }
2781 case EM_SETPASSWORDCHAR:
2782 {
2783 editor->cPasswordMask = wParam;
2784 ME_RewrapRepaint(editor);
2785 return 0;
2786 }
2787 default:
2788 do_default:
2789 return DefWindowProcW(hWnd, msg, wParam, lParam);
2790 }
2791 return 0L;
2792 }
2793
2794 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2795 {
2796 BOOL unicode = TRUE;
2797
2798 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
2799 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
2800 unicode = FALSE;
2801
2802 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
2803 }
2804
2805 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2806 {
2807 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
2808 }
2809
2810 /******************************************************************
2811 * RichEditANSIWndProc (RICHED20.10)
2812 */
2813 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2814 {
2815 return RichEditWndProcA(hWnd, msg, wParam, lParam);
2816 }
2817
2818 /******************************************************************
2819 * RichEdit10ANSIWndProc (RICHED20.9)
2820 */
2821 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2822 {
2823 LRESULT result;
2824
2825 /* FIXME: this is NOT the same as 2.0 version */
2826 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
2827 if (msg == WM_NCCREATE)
2828 {
2829 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2830
2831 editor->bEmulateVersion10 = TRUE;
2832 editor->pBuffer->pLast->member.para.nCharOfs = 2;
2833 }
2834 return result;
2835 }
2836
2837 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
2838 {
2839 HWND hWnd = editor->hWnd;
2840 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
2841 }
2842
2843 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2844 {
2845 int x,y;
2846 ME_Cursor tmpCursor;
2847 int nCharOfs; /* The start of the clicked text. Absolute character offset */
2848
2849 ME_Run *tmpRun;
2850
2851 ENLINK info;
2852 x = (short)LOWORD(lParam);
2853 y = (short)HIWORD(lParam);
2854 nCharOfs = ME_CharFromPos(editor, x, y);
2855 if (nCharOfs < 0) return;
2856
2857 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
2858 tmpRun = &tmpCursor.pRun->member.run;
2859
2860 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
2861 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
2862 { /* The clicked run has CFE_LINK set */
2863 info.nmhdr.hwndFrom = editor->hWnd;
2864 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2865 info.nmhdr.code = EN_LINK;
2866 info.msg = msg;
2867 info.wParam = wParam;
2868 info.lParam = lParam;
2869 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
2870 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
2871 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
2872 }
2873 }
2874
2875 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
2876 {
2877 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
2878 int i = 0;
2879
2880 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
2881 item = item->member.para.next_para;
2882 if (!item)
2883 return 0;
2884 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
2885 item = item->member.para.next_para;
2886 i++;
2887 }
2888 return i;
2889 }
2890
2891
2892 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
2893 {
2894 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
2895 int nWritten = 0;
2896 WCHAR *pStart = buffer;
2897
2898 if (!item) {
2899 *buffer = 0;
2900 return 0;
2901 }
2902
2903 if (nStart)
2904 {
2905 int nLen = ME_StrLen(item->member.run.strText) - nStart;
2906 if (nLen > nChars)
2907 nLen = nChars;
2908 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
2909 nChars -= nLen;
2910 nWritten += nLen;
2911 if (!nChars)
2912 return nWritten;
2913 buffer += nLen;
2914 nStart = 0;
2915 item = ME_FindItemFwd(item, diRun);
2916 }
2917
2918 while(nChars && item)
2919 {
2920 int nLen = ME_StrLen(item->member.run.strText);
2921 if (nLen > nChars)
2922 nLen = nChars;
2923
2924 if (item->member.run.nFlags & MERF_ENDPARA)
2925 {
2926 if (!ME_FindItemFwd(item, diRun))
2927 /* No '\r' is appended to the last paragraph. */
2928 nLen = 0;
2929 else if (bCRLF && nChars == 1) {
2930 nLen = 0;
2931 nChars = 0;
2932 } else {
2933 *buffer = '\r';
2934 if (bCRLF)
2935 {
2936 *(++buffer) = '\n';
2937 nWritten++;
2938 }
2939 assert(nLen == 1);
2940 /* our end paragraph consists of 2 characters now */
2941 if (editor->bEmulateVersion10)
2942 nChars--;
2943 }
2944 }
2945 else
2946 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
2947 nChars -= nLen;
2948 nWritten += nLen;
2949 buffer += nLen;
2950
2951 if (!nChars)
2952 {
2953 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2954 *buffer = 0;
2955 return nWritten;
2956 }
2957 item = ME_FindItemFwd(item, diRun);
2958 }
2959 *buffer = 0;
2960 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2961 return nWritten;
2962 }
2963
2964 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
2965 {
2966 WNDCLASSW wcW;
2967 WNDCLASSA wcA;
2968
2969 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2970 wcW.lpfnWndProc = RichEditWndProcW;
2971 wcW.cbClsExtra = 0;
2972 wcW.cbWndExtra = sizeof(ME_TextEditor *);
2973 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
2974 wcW.hIcon = NULL;
2975 wcW.hCursor = hBeam;
2976 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2977 wcW.lpszMenuName = NULL;
2978
2979 if (is_version_nt())
2980 {
2981 wcW.lpszClassName = RichEdit20W;
2982 if (!RegisterClassW(&wcW)) return FALSE;
2983 wcW.lpszClassName = RichEdit50W;
2984 if (!RegisterClassW(&wcW)) return FALSE;
2985 }
2986 else
2987 {
2988 /* WNDCLASSA/W have the same layout */
2989 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
2990 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2991 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
2992 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2993 }
2994
2995 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2996 wcA.lpfnWndProc = RichEditWndProcA;
2997 wcA.cbClsExtra = 0;
2998 wcA.cbWndExtra = sizeof(ME_TextEditor *);
2999 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
3000 wcA.hIcon = NULL;
3001 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3002 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3003 wcA.lpszMenuName = NULL;
3004 wcA.lpszClassName = "RichEdit20A";
3005 if (!RegisterClassA(&wcA)) return FALSE;
3006 wcA.lpszClassName = "RichEdit50A";
3007 if (!RegisterClassA(&wcA)) return FALSE;
3008
3009 return TRUE;
3010 }
3011
3012 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3013 /* FIXME: Not implemented */
3014 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3015 hWnd, msg, get_msg_name(msg), wParam, lParam);
3016 return DefWindowProcW(hWnd, msg, wParam, lParam);
3017 }
3018
3019 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3020 /* FIXME: Not implemented */
3021 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3022 hWnd, msg, get_msg_name(msg), wParam, lParam);
3023 return DefWindowProcW(hWnd, msg, wParam, lParam);
3024 }
3025
3026 /******************************************************************
3027 * REExtendedRegisterClass (RICHED20.8)
3028 *
3029 * FIXME undocumented
3030 * Need to check for errors and implement controls and callbacks
3031 */
3032 LRESULT WINAPI REExtendedRegisterClass(void)
3033 {
3034 WNDCLASSW wcW;
3035 UINT result;
3036
3037 FIXME("semi stub\n");
3038
3039 wcW.cbClsExtra = 0;
3040 wcW.cbWndExtra = 4;
3041 wcW.hInstance = NULL;
3042 wcW.hIcon = NULL;
3043 wcW.hCursor = NULL;
3044 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
3045 wcW.lpszMenuName = NULL;
3046
3047 if (!ME_ListBoxRegistered)
3048 {
3049 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
3050 wcW.lpfnWndProc = REListWndProc;
3051 wcW.lpszClassName = REListBox20W;
3052 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
3053 }
3054
3055 if (!ME_ComboBoxRegistered)
3056 {
3057 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
3058 wcW.lpfnWndProc = REComboWndProc;
3059 wcW.lpszClassName = REComboBox20W;
3060 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
3061 }
3062
3063 result = 0;
3064 if (ME_ListBoxRegistered)
3065 result += 1;
3066 if (ME_ComboBoxRegistered)
3067 result += 2;
3068
3069 return result;
3070 }
3071
3072 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
3073 {
3074 struct prefix_s {
3075 const char *text;
3076 int length;
3077 } prefixes[12] = {
3078 {"http:", 5},
3079 {"file:", 6},
3080 {"mailto:", 8},
3081 {"ftp:", 5},
3082 {"https:", 7},
3083 {"gopher:", 8},
3084 {"nntp:", 6},
3085 {"prospero:", 10},
3086 {"telnet:", 8},
3087 {"news:", 6},
3088 {"wais:", 6},
3089 {"www.", 5}
3090 };
3091 CHARRANGE ins_pt;
3092 int curf_ef, link_ef, def_ef;
3093 int cur_prefx, prefx_cnt;
3094 int sel_min, sel_max;
3095 int car_pos = 0;
3096 int text_pos=-1;
3097 int URLmin, URLmax = 0;
3098 CHARRANGE url;
3099 FINDTEXTA ft;
3100 CHARFORMAT2W cur_format;
3101 CHARFORMAT2W default_format;
3102 CHARFORMAT2W link;
3103 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3104 sel_min = ins_pt.cpMin;
3105 sel_max = ins_pt.cpMax;
3106 if (sel_min==sel_max)
3107 car_pos = sel_min;
3108 if (sel_min!=sel_max)
3109 car_pos = ME_GetTextLength(editor)+1;
3110 cur_format.cbSize = sizeof(cur_format);
3111 default_format.cbSize = sizeof(default_format);
3112 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3113 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3114 link.cbSize = sizeof(link);
3115 link.dwMask = CFM_LINK;
3116 link.dwEffects = CFE_LINK;
3117 curf_ef = cur_format.dwEffects & link.dwEffects;
3118 def_ef = default_format.dwEffects & link.dwEffects;
3119 link_ef = link.dwEffects & link.dwEffects;
3120 if (curf_ef == link_ef)
3121 {
3122 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3123 {
3124 ME_SetSelection(editor, car_pos, car_pos);
3125 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3126 text_pos=-1;
3127 return 0;
3128 }
3129 }
3130 if (curf_ef == def_ef)
3131 {
3132 cur_prefx = 0;
3133 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3134 while (cur_prefx<=prefx_cnt)
3135 {
3136 if (text_pos == -1)
3137 {
3138 ft.lpstrText = prefixes[cur_prefx].text;
3139 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3140 URLmax=max(0, car_pos);
3141 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3142 {
3143 URLmax = ME_GetTextLength(editor)+1;
3144 }
3145 ft.chrg.cpMin = URLmin;
3146 ft.chrg.cpMax = URLmax;
3147 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3148 cur_prefx++;
3149 }
3150 if (text_pos != -1)
3151 {
3152 url.cpMin=text_pos;
3153 url.cpMax=car_pos-1;
3154 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3155 ME_RewrapRepaint(editor);
3156 break;
3157 }
3158 }
3159 }
3160 return 0;
3161 }
DirectPlay implementation for GSoC