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riched20: Include selection bar size in POSFROMCHAR.
[wine/hacks.git] / dlls / riched20 / editor.c
blob178054173c38d0350c5e3956e04f722ca7cb9909
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 fmt.bPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
423 }
424 }
425 break;
426 case rtfFontSize:
427 fmt.dwMask = CFM_SIZE;
428 if (info->rtfParam != rtfNoParam)
429 fmt.yHeight = info->rtfParam*10;
430 break;
431 }
432 if (fmt.dwMask) {
433 ME_Style *style2;
434 RTFFlushOutputBuffer(info);
435 /* FIXME too slow ? how come ? */
436 style2 = ME_ApplyStyle(info->style, &fmt);
437 ME_ReleaseStyle(info->style);
438 info->style = style2;
439 info->styleChanged = TRUE;
440 }
441 }
442
443 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
444 the same tags mean different things in different contexts */
445 static void ME_RTFParAttrHook(RTF_Info *info)
446 {
447 PARAFORMAT2 fmt;
448 fmt.cbSize = sizeof(fmt);
449 fmt.dwMask = 0;
450
451 switch(info->rtfMinor)
452 {
453 case rtfParDef: /* restores default paragraph attributes */
454 fmt.dwMask = PFM_ALIGNMENT | PFM_TABSTOPS | PFM_OFFSET | PFM_STARTINDENT;
455 fmt.wAlignment = PFA_LEFT;
456 fmt.cTabCount = 0;
457 fmt.dxOffset = fmt.dxStartIndent = 0;
458 RTFFlushOutputBuffer(info);
459 ME_GetParagraph(info->editor->pCursors[0].pRun)->member.para.bTable = FALSE;
460 break;
461 case rtfInTable:
462 {
463 ME_DisplayItem *para;
464
465 RTFFlushOutputBuffer(info);
466 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
467 assert(para->member.para.pCells);
468 para->member.para.bTable = TRUE;
469 return;
470 }
471 case rtfFirstIndent:
472 ME_GetSelectionParaFormat(info->editor, &fmt);
473 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
474 fmt.dxStartIndent += info->rtfParam + fmt.dxOffset;
475 fmt.dxOffset = -info->rtfParam;
476 break;
477 case rtfLeftIndent:
478 ME_GetSelectionParaFormat(info->editor, &fmt);
479 fmt.dwMask = PFM_STARTINDENT;
480 fmt.dxStartIndent = -fmt.dxOffset + info->rtfParam;
481 break;
482 case rtfRightIndent:
483 fmt.dwMask = PFM_RIGHTINDENT;
484 fmt.dxRightIndent = info->rtfParam;
485 break;
486 case rtfQuadLeft:
487 case rtfQuadJust:
488 fmt.dwMask = PFM_ALIGNMENT;
489 fmt.wAlignment = PFA_LEFT;
490 break;
491 case rtfQuadRight:
492 fmt.dwMask = PFM_ALIGNMENT;
493 fmt.wAlignment = PFA_RIGHT;
494 break;
495 case rtfQuadCenter:
496 fmt.dwMask = PFM_ALIGNMENT;
497 fmt.wAlignment = PFA_CENTER;
498 break;
499 case rtfTabPos:
500 ME_GetSelectionParaFormat(info->editor, &fmt);
501 if (!(fmt.dwMask & PFM_TABSTOPS))
502 {
503 fmt.dwMask |= PFM_TABSTOPS;
504 fmt.cTabCount = 0;
505 }
506 if (fmt.cTabCount < MAX_TAB_STOPS)
507 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
508 break;
509 }
510 if (fmt.dwMask) {
511 RTFFlushOutputBuffer(info);
512 /* FIXME too slow ? how come ?*/
513 ME_SetSelectionParaFormat(info->editor, &fmt);
514 }
515 }
516
517 static void ME_RTFTblAttrHook(RTF_Info *info)
518 {
519 ME_DisplayItem *para;
520
521 switch (info->rtfMinor)
522 {
523 case rtfRowDef:
524 RTFFlushOutputBuffer(info);
525 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
526
527 /* Release possibly inherited cell definitions */
528 ME_DestroyTableCellList(para);
529
530 para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
531 para->member.para.pCells->nRightBoundary = 0;
532 para->member.para.pCells->next = NULL;
533 para->member.para.pLastCell = para->member.para.pCells;
534 break;
535 case rtfCellPos:
536 RTFFlushOutputBuffer(info);
537 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
538
539 if (para->member.para.pLastCell->nRightBoundary)
540 {
541 ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
542
543 pCell->next = NULL;
544 para->member.para.pLastCell->next = pCell;
545 para->member.para.pLastCell = pCell;
546 }
547 para->member.para.pLastCell->nRightBoundary = info->rtfParam;
548 break;
549 }
550 }
551
552 static void ME_RTFReadHook(RTF_Info *info) {
553 switch(info->rtfClass)
554 {
555 case rtfGroup:
556 switch(info->rtfMajor)
557 {
558 case rtfBeginGroup:
559 if (info->stackTop < maxStack) {
560 memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
561 info->stack[info->stackTop].codePage = info->codePage;
562 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
563 }
564 info->stackTop++;
565 info->styleChanged = FALSE;
566 break;
567 case rtfEndGroup:
568 {
569 ME_Style *s;
570 RTFFlushOutputBuffer(info);
571 if (info->stackTop<=1) {
572 info->rtfClass = rtfEOF;
573 return;
574 }
575 info->stackTop--;
576 assert(info->stackTop >= 0);
577 if (info->styleChanged)
578 {
579 /* FIXME too slow ? how come ? */
580 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
581 ME_ReleaseStyle(info->style);
582 info->style = s;
583 info->codePage = info->stack[info->stackTop].codePage;
584 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
585 }
586 break;
587 }
588 }
589 break;
590 case rtfControl:
591 switch(info->rtfMajor)
592 {
593 case rtfCharAttr:
594 ME_RTFCharAttrHook(info);
595 break;
596 case rtfParAttr:
597 ME_RTFParAttrHook(info);
598 break;
599 case rtfTblAttr:
600 ME_RTFTblAttrHook(info);
601 break;
602 case rtfSpecialChar:
603 if (info->rtfMinor == rtfCell)
604 {
605 RTFFlushOutputBuffer(info);
606 ME_InsertTableCellFromCursor(info->editor, 0);
607 }
608 }
609 break;
610 }
611 }
612
613 void
614 ME_StreamInFill(ME_InStream *stream)
615 {
616 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
617 (BYTE *)stream->buffer,
618 sizeof(stream->buffer),
619 (LONG *)&stream->dwSize);
620 stream->dwUsed = 0;
621 }
622
623 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
624 {
625 RTF_Info parser;
626 ME_Style *style;
627 int from, to, to2, nUndoMode;
628 int nEventMask = editor->nEventMask;
629 ME_InStream inStream;
630
631 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, (UINT)format);
632 editor->nEventMask = 0;
633
634 ME_GetSelection(editor, &from, &to);
635 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
636 style = ME_GetSelectionInsertStyle(editor);
637
638 ME_InternalDeleteText(editor, from, to-from);
639 }
640 else {
641 style = editor->pBuffer->pDefaultStyle;
642 ME_AddRefStyle(style);
643 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
644 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
645 from = to = 0;
646 ME_ClearTempStyle(editor);
647 /* FIXME restore default paragraph formatting ! */
648 }
649
650
651 /* Back up undo mode to a local variable */
652 nUndoMode = editor->nUndoMode;
653
654 /* Only create an undo if SFF_SELECTION is set */
655 if (!(format & SFF_SELECTION))
656 editor->nUndoMode = umIgnore;
657
658 inStream.editstream = stream;
659 inStream.editstream->dwError = 0;
660 inStream.dwSize = 0;
661 inStream.dwUsed = 0;
662
663 if (format & SF_RTF)
664 {
665 /* Check if it's really RTF, and if it is not, use plain text */
666 ME_StreamInFill(&inStream);
667 if (!inStream.editstream->dwError)
668 {
669 if (strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
670 {
671 format &= ~SF_RTF;
672 format |= SF_TEXT;
673 }
674 }
675 }
676
677 if (!inStream.editstream->dwError)
678 {
679 if (format & SF_RTF) {
680 /* setup the RTF parser */
681 memset(&parser, 0, sizeof parser);
682 RTFSetEditStream(&parser, &inStream);
683 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
684 parser.hwndEdit = editor->hWnd;
685 parser.editor = editor;
686 parser.style = style;
687 WriterInit(&parser);
688 RTFInit(&parser);
689 RTFSetReadHook(&parser, ME_RTFReadHook);
690 BeginFile(&parser);
691
692 /* do the parsing */
693 RTFRead(&parser);
694 RTFFlushOutputBuffer(&parser);
695 RTFDestroy(&parser);
696
697 style = parser.style;
698 }
699 else if (format & SF_TEXT)
700 ME_StreamInText(editor, format, &inStream, style);
701 else
702 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
703 ME_GetSelection(editor, &to, &to2);
704 /* put the cursor at the top */
705 if (!(format & SFF_SELECTION))
706 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
707 }
708
709 /* Restore saved undo mode */
710 editor->nUndoMode = nUndoMode;
711
712 /* even if we didn't add an undo, we need to commit anything on the stack */
713 ME_CommitUndo(editor);
714
715 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
716 if (!(format & SFF_SELECTION))
717 ME_EmptyUndoStack(editor);
718
719 ME_ReleaseStyle(style);
720 editor->nEventMask = nEventMask;
721 if (editor->bRedraw)
722 {
723 ME_UpdateRepaint(editor);
724 }
725 if (!(format & SFF_SELECTION)) {
726 ME_ClearTempStyle(editor);
727 }
728 ME_MoveCaret(editor);
729 ME_SendSelChange(editor);
730 ME_SendRequestResize(editor, FALSE);
731
732 return 0;
733 }
734
735
736 typedef struct tagME_RTFStringStreamStruct
737 {
738 char *string;
739 int pos;
740 int length;
741 } ME_RTFStringStreamStruct;
742
743 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
744 {
745 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
746 int count;
747
748 count = min(cb, pStruct->length - pStruct->pos);
749 memmove(lpBuff, pStruct->string + pStruct->pos, count);
750 pStruct->pos += count;
751 *pcb = count;
752 return 0;
753 }
754
755 static void
756 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
757 {
758 EDITSTREAM es;
759 ME_RTFStringStreamStruct data;
760
761 data.string = string;
762 data.length = strlen(string);
763 data.pos = 0;
764 es.dwCookie = (DWORD)&data;
765 es.pfnCallback = ME_ReadFromRTFString;
766 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es);
767 }
768
769
770 ME_DisplayItem *
771 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
772 {
773 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
774
775 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
776 item = ME_FindItemFwd(item, diParagraph);
777
778 if (!item)
779 return item;
780
781 nOffset -= item->member.para.nCharOfs;
782 if (nItemType == diParagraph) {
783 if (nItemOffset)
784 *nItemOffset = nOffset;
785 return item;
786 }
787
788 do {
789 item = ME_FindItemFwd(item, diRun);
790 } while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
791 if (item) {
792 nOffset -= item->member.run.nCharOfs;
793 if (nItemOffset)
794 *nItemOffset = nOffset;
795 }
796 return item;
797 }
798
799
800 static int
801 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
802 {
803 const int nLen = lstrlenW(text);
804 const int nTextLen = ME_GetTextLength(editor);
805 int nStart, nEnd;
806 int nMin, nMax;
807 ME_DisplayItem *item;
808 ME_DisplayItem *para;
809 WCHAR wLastChar = ' ';
810
811 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
812 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
813
814 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
815 FIXME("Flags 0x%08x not implemented\n",
816 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
817
818 nMin = chrg->cpMin;
819 if (chrg->cpMax == -1)
820 nMax = nTextLen;
821 else
822 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
823
824 /* when searching up, if cpMin < cpMax, then instead of searching
825 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
826 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
827 * case, it is always bigger than cpMin.
828 */
829 if (!(flags & FR_DOWN))
830 {
831 int nSwap = nMax;
832
833 nMax = nMin > nTextLen ? nTextLen : nMin;
834 if (nMin < nSwap || chrg->cpMax == -1)
835 nMin = 0;
836 else
837 nMin = nSwap;
838 }
839
840 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
841 {
842 if (chrgText)
843 chrgText->cpMin = chrgText->cpMax = -1;
844 return -1;
845 }
846
847 if (flags & FR_DOWN) /* Forward search */
848 {
849 /* If possible, find the character before where the search starts */
850 if ((flags & FR_WHOLEWORD) && nMin)
851 {
852 nStart = nMin - 1;
853 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
854 if (!item)
855 {
856 if (chrgText)
857 chrgText->cpMin = chrgText->cpMax = -1;
858 return -1;
859 }
860 wLastChar = item->member.run.strText->szData[nStart];
861 }
862
863 nStart = nMin;
864 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
865 if (!item)
866 {
867 if (chrgText)
868 chrgText->cpMin = chrgText->cpMax = -1;
869 return -1;
870 }
871
872 para = ME_GetParagraph(item);
873 while (item
874 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
875 {
876 ME_DisplayItem *pCurItem = item;
877 int nCurStart = nStart;
878 int nMatched = 0;
879
880 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
881 {
882 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
883 break;
884
885 nMatched++;
886 if (nMatched == nLen)
887 {
888 ME_DisplayItem *pNextItem = pCurItem;
889 int nNextStart = nCurStart;
890 WCHAR wNextChar;
891
892 /* Check to see if next character is a whitespace */
893 if (flags & FR_WHOLEWORD)
894 {
895 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
896 {
897 pNextItem = ME_FindItemFwd(pCurItem, diRun);
898 nNextStart = -nMatched;
899 }
900
901 if (pNextItem)
902 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
903 else
904 wNextChar = ' ';
905
906 if (isalnumW(wNextChar))
907 break;
908 }
909
910 nStart += para->member.para.nCharOfs + pCurItem->member.run.nCharOfs;
911 if (chrgText)
912 {
913 chrgText->cpMin = nStart;
914 chrgText->cpMax = nStart + nLen;
915 }
916 TRACE("found at %d-%d\n", nStart, nStart + nLen);
917 return nStart;
918 }
919 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
920 {
921 pCurItem = ME_FindItemFwd(pCurItem, diRun);
922 para = ME_GetParagraph(pCurItem);
923 nCurStart = -nMatched;
924 }
925 }
926 if (pCurItem)
927 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
928 else
929 wLastChar = ' ';
930
931 nStart++;
932 if (nStart == ME_StrLen(item->member.run.strText))
933 {
934 item = ME_FindItemFwd(item, diRun);
935 para = ME_GetParagraph(item);
936 nStart = 0;
937 }
938 }
939 }
940 else /* Backward search */
941 {
942 /* If possible, find the character after where the search ends */
943 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
944 {
945 nEnd = nMax + 1;
946 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
947 if (!item)
948 {
949 if (chrgText)
950 chrgText->cpMin = chrgText->cpMax = -1;
951 return -1;
952 }
953 wLastChar = item->member.run.strText->szData[nEnd];
954 }
955
956 nEnd = nMax;
957 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
958 if (!item)
959 {
960 if (chrgText)
961 chrgText->cpMin = chrgText->cpMax = -1;
962 return -1;
963 }
964
965 para = ME_GetParagraph(item);
966
967 while (item
968 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
969 {
970 ME_DisplayItem *pCurItem = item;
971 int nCurEnd = nEnd;
972 int nMatched = 0;
973
974 if (nCurEnd - nMatched == 0)
975 {
976 pCurItem = ME_FindItemBack(pCurItem, diRun);
977 para = ME_GetParagraph(pCurItem);
978 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
979 }
980
981 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
982 {
983 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
984 break;
985
986 nMatched++;
987 if (nMatched == nLen)
988 {
989 ME_DisplayItem *pPrevItem = pCurItem;
990 int nPrevEnd = nCurEnd;
991 WCHAR wPrevChar;
992
993 /* Check to see if previous character is a whitespace */
994 if (flags & FR_WHOLEWORD)
995 {
996 if (nPrevEnd - nMatched == 0)
997 {
998 pPrevItem = ME_FindItemBack(pCurItem, diRun);
999 if (pPrevItem)
1000 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
1001 }
1002
1003 if (pPrevItem)
1004 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
1005 else
1006 wPrevChar = ' ';
1007
1008 if (isalnumW(wPrevChar))
1009 break;
1010 }
1011
1012 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
1013 if (chrgText)
1014 {
1015 chrgText->cpMin = nStart;
1016 chrgText->cpMax = nStart + nLen;
1017 }
1018 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1019 return nStart;
1020 }
1021 if (nCurEnd - nMatched == 0)
1022 {
1023 pCurItem = ME_FindItemBack(pCurItem, diRun);
1024 /* Don't care about pCurItem becoming NULL here; it's already taken
1025 * care of in the exterior loop condition */
1026 para = ME_GetParagraph(pCurItem);
1027 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1028 }
1029 }
1030 if (pCurItem)
1031 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1032 else
1033 wLastChar = ' ';
1034
1035 nEnd--;
1036 if (nEnd < 0)
1037 {
1038 item = ME_FindItemBack(item, diRun);
1039 para = ME_GetParagraph(item);
1040 nEnd = ME_StrLen(item->member.run.strText);
1041 }
1042 }
1043 }
1044 TRACE("not found\n");
1045 if (chrgText)
1046 chrgText->cpMin = chrgText->cpMax = -1;
1047 return -1;
1048 }
1049
1050 /* helper to send a msg filter notification */
1051 static BOOL
1052 ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
1053 {
1054 MSGFILTER msgf;
1055
1056 msgf.nmhdr.hwndFrom = editor->hWnd;
1057 msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
1058 msgf.nmhdr.code = EN_MSGFILTER;
1059 msgf.msg = msg;
1060
1061 msgf.wParam = *wParam;
1062 msgf.lParam = *lParam;
1063 if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
1064 return FALSE;
1065 *wParam = msgf.wParam;
1066 *lParam = msgf.lParam;
1067 msgf.wParam = *wParam;
1068
1069 return TRUE;
1070 }
1071
1072 static BOOL
1073 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1074 {
1075 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1076 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1077
1078 switch (nKey)
1079 {
1080 case VK_LEFT:
1081 case VK_RIGHT:
1082 case VK_UP:
1083 case VK_DOWN:
1084 case VK_HOME:
1085 case VK_END:
1086 case VK_PRIOR:
1087 case VK_NEXT:
1088 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1089 return TRUE;
1090 case VK_BACK:
1091 case VK_DELETE:
1092 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1093 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1094 return FALSE;
1095 if (ME_IsSelection(editor))
1096 ME_DeleteSelection(editor);
1097 else if (nKey == VK_DELETE || ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1098 ME_DeleteTextAtCursor(editor, 1, 1);
1099 else
1100 return TRUE;
1101 ME_CommitUndo(editor);
1102 ME_UpdateRepaint(editor);
1103 ME_SendRequestResize(editor, FALSE);
1104 return TRUE;
1105
1106 default:
1107 if (ctrl_is_down)
1108 {
1109 if (nKey == 'W')
1110 {
1111 CHARFORMAT2W chf;
1112 char buf[2048];
1113 chf.cbSize = sizeof(chf);
1114
1115 ME_GetSelectionCharFormat(editor, &chf);
1116 ME_DumpStyleToBuf(&chf, buf);
1117 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1118 }
1119 if (nKey == 'Q')
1120 {
1121 ME_CheckCharOffsets(editor);
1122 }
1123 }
1124 }
1125 return FALSE;
1126 }
1127
1128 static void ME_SetCursor(ME_TextEditor *editor, int x)
1129 {
1130 if (x < editor->selofs || editor->linesel)
1131 SetCursor(hLeft);
1132 else
1133 SetCursor(hBeam);
1134 }
1135
1136 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1137 {
1138 CHARRANGE selrange;
1139 HMENU menu;
1140 int seltype = 0;
1141 if(!editor->lpOleCallback)
1142 return FALSE;
1143 ME_GetSelection(editor, (int *)&selrange.cpMin, (int *)&selrange.cpMax);
1144 if(selrange.cpMin == selrange.cpMax)
1145 seltype |= SEL_EMPTY;
1146 else
1147 {
1148 /* FIXME: Handle objects */
1149 seltype |= SEL_TEXT;
1150 if(selrange.cpMax-selrange.cpMin > 1)
1151 seltype |= SEL_MULTICHAR;
1152 }
1153 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1154 {
1155 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1156 DestroyMenu(menu);
1157 }
1158 return TRUE;
1159 }
1160
1161 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1162 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1163 int i;
1164 ed->hWnd = hWnd;
1165 ed->bEmulateVersion10 = FALSE;
1166 ed->pBuffer = ME_MakeText();
1167 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1168 ME_MakeFirstParagraph(ed);
1169 ed->bCaretShown = FALSE;
1170 ed->nCursors = 4;
1171 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1172 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1173 ed->pCursors[0].nOffset = 0;
1174 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1175 ed->pCursors[1].nOffset = 0;
1176 ed->pCursors[2] = ed->pCursors[0];
1177 ed->pCursors[3] = ed->pCursors[1];
1178 ed->nLastTotalLength = ed->nTotalLength = 0;
1179 ed->nHeight = 0;
1180 ed->nUDArrowX = -1;
1181 ed->nSequence = 0;
1182 ed->rgbBackColor = -1;
1183 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1184 ed->bCaretAtEnd = FALSE;
1185 ed->nEventMask = 0;
1186 ed->nModifyStep = 0;
1187 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1188 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1189 ed->nUndoStackSize = 0;
1190 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1191 ed->nUndoMode = umAddToUndo;
1192 ed->nParagraphs = 1;
1193 ed->nLastSelStart = ed->nLastSelEnd = 0;
1194 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
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 pt.x += editor->selofs;
2397 if (wParam >= 0x40000) {
2398 *(POINTL *)wParam = pt;
2399 }
2400 return MAKELONG( pt.x, pt.y );
2401 }
2402 case WM_CREATE:
2403 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
2404 { /* Squelch the default horizontal scrollbar it would make */
2405 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
2406 }
2407 ME_CommitUndo(editor);
2408 ME_WrapMarkedParagraphs(editor);
2409 ME_MoveCaret(editor);
2410 return 0;
2411 case WM_DESTROY:
2412 ME_DestroyEditor(editor);
2413 SetWindowLongPtrW(hWnd, 0, 0);
2414 return 0;
2415 case WM_LBUTTONDOWN:
2416 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2417 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2418 return 0;
2419 SetFocus(hWnd);
2420 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2421 SetCapture(hWnd);
2422 ME_LinkNotify(editor,msg,wParam,lParam);
2423 ME_SetCursor(editor, LOWORD(lParam));
2424 break;
2425 case WM_MOUSEMOVE:
2426 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2427 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2428 return 0;
2429 if (GetCapture() == hWnd)
2430 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2431 ME_LinkNotify(editor,msg,wParam,lParam);
2432 ME_SetCursor(editor, LOWORD(lParam));
2433 break;
2434 case WM_LBUTTONUP:
2435 if (GetCapture() == hWnd)
2436 ReleaseCapture();
2437 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2438 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2439 return 0;
2440 editor->linesel = 0;
2441 ME_SetCursor(editor, LOWORD(lParam));
2442 ME_LinkNotify(editor,msg,wParam,lParam);
2443 break;
2444 case WM_LBUTTONDBLCLK:
2445 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2446 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2447 return 0;
2448 ME_LinkNotify(editor,msg,wParam,lParam);
2449 ME_SelectWord(editor);
2450 break;
2451 case WM_RBUTTONUP:
2452 case WM_RBUTTONDOWN:
2453 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2454 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2455 return 0;
2456 goto do_default;
2457 case WM_CONTEXTMENU:
2458 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
2459 goto do_default;
2460 break;
2461 case WM_PAINT:
2462 if (editor->bRedraw)
2463 {
2464 HDC hDC;
2465 PAINTSTRUCT ps;
2466
2467 hDC = BeginPaint(hWnd, &ps);
2468 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
2469 EndPaint(hWnd, &ps);
2470 }
2471 break;
2472 case WM_SETFOCUS:
2473 editor->bHaveFocus = TRUE;
2474 ME_ShowCaret(editor);
2475 ME_SendOldNotify(editor, EN_SETFOCUS);
2476 return 0;
2477 case WM_KILLFOCUS:
2478 ME_HideCaret(editor);
2479 editor->bHaveFocus = FALSE;
2480 ME_SendOldNotify(editor, EN_KILLFOCUS);
2481 return 0;
2482 case WM_ERASEBKGND:
2483 {
2484 if (editor->bRedraw)
2485 {
2486 HDC hDC = (HDC)wParam;
2487 RECT rc;
2488 if (GetUpdateRect(hWnd,&rc,TRUE))
2489 {
2490 FillRect(hDC, &rc, editor->hbrBackground);
2491 }
2492 }
2493 return 1;
2494 }
2495 case WM_COMMAND:
2496 TRACE("editor wnd command = %d\n", LOWORD(wParam));
2497 return 0;
2498 case WM_KEYUP:
2499 if ((editor->nEventMask & ENM_KEYEVENTS) &&
2500 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2501 return 0;
2502 goto do_default;
2503 case WM_KEYDOWN:
2504 if ((editor->nEventMask & ENM_KEYEVENTS) &&
2505 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2506 return 0;
2507 if (ME_KeyDown(editor, LOWORD(wParam)))
2508 return 0;
2509 goto do_default;
2510 case WM_CHAR:
2511 {
2512 WCHAR wstr;
2513
2514 if (unicode)
2515 wstr = (WCHAR)wParam;
2516 else
2517 {
2518 CHAR charA = wParam;
2519 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2520 }
2521 if (editor->AutoURLDetect_bEnable)
2522 ME_AutoURLDetect(editor, wstr);
2523
2524 switch (wstr)
2525 {
2526 case 1: /* Ctrl-A */
2527 ME_SetSelection(editor, 0, -1);
2528 return 0;
2529 case 3: /* Ctrl-C */
2530 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
2531 return 0;
2532 }
2533
2534 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
2535 MessageBeep(MB_ICONERROR);
2536 return 0; /* FIXME really 0 ? */
2537 }
2538
2539 switch (wstr)
2540 {
2541 case 22: /* Ctrl-V */
2542 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
2543 return 0;
2544 case 24: /* Ctrl-X */
2545 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
2546 return 0;
2547 case 25: /* Ctrl-Y */
2548 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
2549 return 0;
2550 case 26: /* Ctrl-Z */
2551 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
2552 return 0;
2553 }
2554 if (((unsigned)wstr)>=' '
2555 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2556 || wstr=='\t') {
2557 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2558 /* WM_CHAR is restricted to nTextLimit */
2559 int from, to;
2560 ME_GetSelection(editor, &from, &to);
2561 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2562 {
2563 ME_Style *style = ME_GetInsertStyle(editor, 0);
2564 ME_SaveTempStyle(editor);
2565 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2566 ME_ReleaseStyle(style);
2567 ME_CommitUndo(editor);
2568 }
2569 ME_UpdateRepaint(editor);
2570 }
2571 return 0;
2572 }
2573 case EM_SCROLL: /* fall through */
2574 case WM_VSCROLL:
2575 {
2576 int origNPos;
2577 int lineHeight;
2578
2579 origNPos = ME_GetYScrollPos(editor);
2580 lineHeight = 24;
2581
2582 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
2583 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
2584 if (lineHeight <= 0) lineHeight = 24;
2585
2586 switch(LOWORD(wParam))
2587 {
2588 case SB_LINEUP:
2589 ME_ScrollUp(editor,lineHeight);
2590 break;
2591 case SB_LINEDOWN:
2592 ME_ScrollDown(editor,lineHeight);
2593 break;
2594 case SB_PAGEUP:
2595 ME_ScrollUp(editor,editor->sizeWindow.cy);
2596 break;
2597 case SB_PAGEDOWN:
2598 ME_ScrollDown(editor,editor->sizeWindow.cy);
2599 break;
2600 case SB_THUMBTRACK:
2601 case SB_THUMBPOSITION:
2602 ME_ScrollAbs(editor,HIWORD(wParam));
2603 break;
2604 }
2605 if (msg == EM_SCROLL)
2606 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
2607 break;
2608 }
2609 case WM_MOUSEWHEEL:
2610 {
2611 int gcWheelDelta;
2612 UINT pulScrollLines;
2613
2614 if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
2615 !ME_FilterEvent(editor, msg, &wParam, &lParam))
2616 return 0;
2617
2618 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
2619 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
2620
2621 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
2622 {
2623 /* FIXME follow the original */
2624 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
2625 }
2626 break;
2627 }
2628 case EM_GETRECT:
2629 {
2630 *((RECT *)lParam) = editor->rcFormat;
2631 return 0;
2632 }
2633 case EM_SETRECT:
2634 case EM_SETRECTNP:
2635 {
2636 if (lParam)
2637 {
2638 RECT *rc = (RECT *)lParam;
2639
2640 if (wParam)
2641 {
2642 editor->rcFormat.left += rc->left;
2643 editor->rcFormat.top += rc->top;
2644 editor->rcFormat.right += rc->right;
2645 editor->rcFormat.bottom += rc->bottom;
2646 }
2647 else
2648 {
2649 editor->rcFormat = *rc;
2650 }
2651 }
2652 else
2653 {
2654 GetClientRect(hWnd, &editor->rcFormat);
2655 }
2656 if (msg != EM_SETRECTNP)
2657 ME_RewrapRepaint(editor);
2658 return 0;
2659 }
2660 case EM_REQUESTRESIZE:
2661 ME_SendRequestResize(editor, TRUE);
2662 return 0;
2663 case WM_SETREDRAW:
2664 if ((editor->bRedraw = wParam))
2665 ME_RewrapRepaint(editor);
2666 return 0;
2667 case WM_SIZE:
2668 {
2669 GetClientRect(hWnd, &editor->rcFormat);
2670 ME_RewrapRepaint(editor);
2671 return DefWindowProcW(hWnd, msg, wParam, lParam);
2672 }
2673 /* IME messages to make richedit controls IME aware */
2674 case WM_IME_SETCONTEXT:
2675 case WM_IME_CONTROL:
2676 case WM_IME_SELECT:
2677 case WM_IME_COMPOSITIONFULL:
2678 return 0;
2679 case WM_IME_STARTCOMPOSITION:
2680 {
2681 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
2682 ME_DeleteSelection(editor);
2683 ME_CommitUndo(editor);
2684 ME_UpdateRepaint(editor);
2685 return 0;
2686 }
2687 case WM_IME_COMPOSITION:
2688 {
2689 HIMC hIMC;
2690
2691 ME_Style *style = ME_GetInsertStyle(editor, 0);
2692 hIMC = ImmGetContext(hWnd);
2693 ME_DeleteSelection(editor);
2694 ME_CommitUndo(editor);
2695 ME_SaveTempStyle(editor);
2696 if (lParam & GCS_RESULTSTR)
2697 {
2698 LPWSTR lpCompStr = NULL;
2699 DWORD dwBufLen;
2700
2701 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
2702 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2703 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
2704 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2705 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2706 }
2707 else if (lParam & GCS_COMPSTR)
2708 {
2709 LPWSTR lpCompStr = NULL;
2710 DWORD dwBufLen;
2711
2712 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
2713 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2714 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
2715 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2716
2717 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2718 ME_SetSelection(editor,editor->imeStartIndex,
2719 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
2720 }
2721 ME_ReleaseStyle(style);
2722 ME_UpdateRepaint(editor);
2723 return 0;
2724 }
2725 case WM_IME_ENDCOMPOSITION:
2726 {
2727 ME_DeleteSelection(editor);
2728 editor->imeStartIndex=-1;
2729 return 0;
2730 }
2731 case EM_GETOLEINTERFACE:
2732 {
2733 LPVOID *ppvObj = (LPVOID*) lParam;
2734 return CreateIRichEditOle(editor, ppvObj);
2735 }
2736 case EM_GETPASSWORDCHAR:
2737 {
2738 return editor->cPasswordMask;
2739 }
2740 case EM_SETOLECALLBACK:
2741 if(editor->lpOleCallback)
2742 IUnknown_Release(editor->lpOleCallback);
2743 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
2744 if(editor->lpOleCallback)
2745 IUnknown_AddRef(editor->lpOleCallback);
2746 return TRUE;
2747 case EM_GETWORDBREAKPROC:
2748 return (LRESULT)editor->pfnWordBreak;
2749 case EM_SETWORDBREAKPROC:
2750 {
2751 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
2752
2753 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
2754 return (LRESULT)pfnOld;
2755 }
2756 case EM_SETTEXTMODE:
2757 {
2758 LRESULT ret;
2759 int mask = 0;
2760 int changes = 0;
2761 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
2762 if (!ret)
2763 {
2764 /*Check for valid wParam*/
2765 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
2766 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
2767 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
2768 return 1;
2769 else
2770 {
2771 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
2772 {
2773 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
2774 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
2775 }
2776 /*FIXME: Currently no support for undo level and code page options*/
2777 editor->mode = (editor->mode & (~mask)) | changes;
2778 return 0;
2779 }
2780 }
2781 return ret;
2782 }
2783 case EM_SETPASSWORDCHAR:
2784 {
2785 editor->cPasswordMask = wParam;
2786 ME_RewrapRepaint(editor);
2787 return 0;
2788 }
2789 default:
2790 do_default:
2791 return DefWindowProcW(hWnd, msg, wParam, lParam);
2792 }
2793 return 0L;
2794 }
2795
2796 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2797 {
2798 BOOL unicode = TRUE;
2799
2800 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
2801 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
2802 unicode = FALSE;
2803
2804 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
2805 }
2806
2807 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2808 {
2809 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
2810 }
2811
2812 /******************************************************************
2813 * RichEditANSIWndProc (RICHED20.10)
2814 */
2815 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2816 {
2817 return RichEditWndProcA(hWnd, msg, wParam, lParam);
2818 }
2819
2820 /******************************************************************
2821 * RichEdit10ANSIWndProc (RICHED20.9)
2822 */
2823 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2824 {
2825 LRESULT result;
2826
2827 /* FIXME: this is NOT the same as 2.0 version */
2828 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
2829 if (msg == WM_NCCREATE)
2830 {
2831 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2832
2833 editor->bEmulateVersion10 = TRUE;
2834 editor->pBuffer->pLast->member.para.nCharOfs = 2;
2835 }
2836 return result;
2837 }
2838
2839 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
2840 {
2841 HWND hWnd = editor->hWnd;
2842 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
2843 }
2844
2845 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2846 {
2847 int x,y;
2848 ME_Cursor tmpCursor;
2849 int nCharOfs; /* The start of the clicked text. Absolute character offset */
2850
2851 ME_Run *tmpRun;
2852
2853 ENLINK info;
2854 x = (short)LOWORD(lParam);
2855 y = (short)HIWORD(lParam);
2856 nCharOfs = ME_CharFromPos(editor, x, y);
2857 if (nCharOfs < 0) return;
2858
2859 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
2860 tmpRun = &tmpCursor.pRun->member.run;
2861
2862 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
2863 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
2864 { /* The clicked run has CFE_LINK set */
2865 info.nmhdr.hwndFrom = editor->hWnd;
2866 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2867 info.nmhdr.code = EN_LINK;
2868 info.msg = msg;
2869 info.wParam = wParam;
2870 info.lParam = lParam;
2871 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
2872 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
2873 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
2874 }
2875 }
2876
2877 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
2878 {
2879 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
2880 int i = 0;
2881
2882 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
2883 item = item->member.para.next_para;
2884 if (!item)
2885 return 0;
2886 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
2887 item = item->member.para.next_para;
2888 i++;
2889 }
2890 return i;
2891 }
2892
2893
2894 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
2895 {
2896 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
2897 int nWritten = 0;
2898 WCHAR *pStart = buffer;
2899
2900 if (!item) {
2901 *buffer = 0;
2902 return 0;
2903 }
2904
2905 if (nStart)
2906 {
2907 int nLen = ME_StrLen(item->member.run.strText) - nStart;
2908 if (nLen > nChars)
2909 nLen = nChars;
2910 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
2911 nChars -= nLen;
2912 nWritten += nLen;
2913 if (!nChars)
2914 return nWritten;
2915 buffer += nLen;
2916 nStart = 0;
2917 item = ME_FindItemFwd(item, diRun);
2918 }
2919
2920 while(nChars && item)
2921 {
2922 int nLen = ME_StrLen(item->member.run.strText);
2923 if (nLen > nChars)
2924 nLen = nChars;
2925
2926 if (item->member.run.nFlags & MERF_ENDPARA)
2927 {
2928 if (!ME_FindItemFwd(item, diRun))
2929 /* No '\r' is appended to the last paragraph. */
2930 nLen = 0;
2931 else if (bCRLF && nChars == 1) {
2932 nLen = 0;
2933 nChars = 0;
2934 } else {
2935 *buffer = '\r';
2936 if (bCRLF)
2937 {
2938 *(++buffer) = '\n';
2939 nWritten++;
2940 }
2941 assert(nLen == 1);
2942 /* our end paragraph consists of 2 characters now */
2943 if (editor->bEmulateVersion10)
2944 nChars--;
2945 }
2946 }
2947 else
2948 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
2949 nChars -= nLen;
2950 nWritten += nLen;
2951 buffer += nLen;
2952
2953 if (!nChars)
2954 {
2955 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2956 *buffer = 0;
2957 return nWritten;
2958 }
2959 item = ME_FindItemFwd(item, diRun);
2960 }
2961 *buffer = 0;
2962 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2963 return nWritten;
2964 }
2965
2966 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
2967 {
2968 WNDCLASSW wcW;
2969 WNDCLASSA wcA;
2970
2971 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2972 wcW.lpfnWndProc = RichEditWndProcW;
2973 wcW.cbClsExtra = 0;
2974 wcW.cbWndExtra = sizeof(ME_TextEditor *);
2975 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
2976 wcW.hIcon = NULL;
2977 wcW.hCursor = hBeam;
2978 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2979 wcW.lpszMenuName = NULL;
2980
2981 if (is_version_nt())
2982 {
2983 wcW.lpszClassName = RichEdit20W;
2984 if (!RegisterClassW(&wcW)) return FALSE;
2985 wcW.lpszClassName = RichEdit50W;
2986 if (!RegisterClassW(&wcW)) return FALSE;
2987 }
2988 else
2989 {
2990 /* WNDCLASSA/W have the same layout */
2991 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
2992 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2993 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
2994 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2995 }
2996
2997 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2998 wcA.lpfnWndProc = RichEditWndProcA;
2999 wcA.cbClsExtra = 0;
3000 wcA.cbWndExtra = sizeof(ME_TextEditor *);
3001 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
3002 wcA.hIcon = NULL;
3003 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
3004 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
3005 wcA.lpszMenuName = NULL;
3006 wcA.lpszClassName = "RichEdit20A";
3007 if (!RegisterClassA(&wcA)) return FALSE;
3008 wcA.lpszClassName = "RichEdit50A";
3009 if (!RegisterClassA(&wcA)) return FALSE;
3010
3011 return TRUE;
3012 }
3013
3014 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3015 /* FIXME: Not implemented */
3016 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3017 hWnd, msg, get_msg_name(msg), wParam, lParam);
3018 return DefWindowProcW(hWnd, msg, wParam, lParam);
3019 }
3020
3021 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
3022 /* FIXME: Not implemented */
3023 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
3024 hWnd, msg, get_msg_name(msg), wParam, lParam);
3025 return DefWindowProcW(hWnd, msg, wParam, lParam);
3026 }
3027
3028 /******************************************************************
3029 * REExtendedRegisterClass (RICHED20.8)
3030 *
3031 * FIXME undocumented
3032 * Need to check for errors and implement controls and callbacks
3033 */
3034 LRESULT WINAPI REExtendedRegisterClass(void)
3035 {
3036 WNDCLASSW wcW;
3037 UINT result;
3038
3039 FIXME("semi stub\n");
3040
3041 wcW.cbClsExtra = 0;
3042 wcW.cbWndExtra = 4;
3043 wcW.hInstance = NULL;
3044 wcW.hIcon = NULL;
3045 wcW.hCursor = NULL;
3046 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
3047 wcW.lpszMenuName = NULL;
3048
3049 if (!ME_ListBoxRegistered)
3050 {
3051 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
3052 wcW.lpfnWndProc = REListWndProc;
3053 wcW.lpszClassName = REListBox20W;
3054 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
3055 }
3056
3057 if (!ME_ComboBoxRegistered)
3058 {
3059 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
3060 wcW.lpfnWndProc = REComboWndProc;
3061 wcW.lpszClassName = REComboBox20W;
3062 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
3063 }
3064
3065 result = 0;
3066 if (ME_ListBoxRegistered)
3067 result += 1;
3068 if (ME_ComboBoxRegistered)
3069 result += 2;
3070
3071 return result;
3072 }
3073
3074 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
3075 {
3076 struct prefix_s {
3077 const char *text;
3078 int length;
3079 } prefixes[12] = {
3080 {"http:", 5},
3081 {"file:", 6},
3082 {"mailto:", 8},
3083 {"ftp:", 5},
3084 {"https:", 7},
3085 {"gopher:", 8},
3086 {"nntp:", 6},
3087 {"prospero:", 10},
3088 {"telnet:", 8},
3089 {"news:", 6},
3090 {"wais:", 6},
3091 {"www.", 5}
3092 };
3093 CHARRANGE ins_pt;
3094 int curf_ef, link_ef, def_ef;
3095 int cur_prefx, prefx_cnt;
3096 int sel_min, sel_max;
3097 int car_pos = 0;
3098 int text_pos=-1;
3099 int URLmin, URLmax = 0;
3100 CHARRANGE url;
3101 FINDTEXTA ft;
3102 CHARFORMAT2W cur_format;
3103 CHARFORMAT2W default_format;
3104 CHARFORMAT2W link;
3105 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3106 sel_min = ins_pt.cpMin;
3107 sel_max = ins_pt.cpMax;
3108 if (sel_min==sel_max)
3109 car_pos = sel_min;
3110 if (sel_min!=sel_max)
3111 car_pos = ME_GetTextLength(editor)+1;
3112 cur_format.cbSize = sizeof(cur_format);
3113 default_format.cbSize = sizeof(default_format);
3114 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3115 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3116 link.cbSize = sizeof(link);
3117 link.dwMask = CFM_LINK;
3118 link.dwEffects = CFE_LINK;
3119 curf_ef = cur_format.dwEffects & link.dwEffects;
3120 def_ef = default_format.dwEffects & link.dwEffects;
3121 link_ef = link.dwEffects & link.dwEffects;
3122 if (curf_ef == link_ef)
3123 {
3124 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3125 {
3126 ME_SetSelection(editor, car_pos, car_pos);
3127 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3128 text_pos=-1;
3129 return 0;
3130 }
3131 }
3132 if (curf_ef == def_ef)
3133 {
3134 cur_prefx = 0;
3135 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3136 while (cur_prefx<=prefx_cnt)
3137 {
3138 if (text_pos == -1)
3139 {
3140 ft.lpstrText = prefixes[cur_prefx].text;
3141 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3142 URLmax=max(0, car_pos);
3143 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3144 {
3145 URLmax = ME_GetTextLength(editor)+1;
3146 }
3147 ft.chrg.cpMin = URLmin;
3148 ft.chrg.cpMax = URLmax;
3149 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3150 cur_prefx++;
3151 }
3152 if (text_pos != -1)
3153 {
3154 url.cpMin=text_pos;
3155 url.cpMax=car_pos-1;
3156 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3157 ME_RewrapRepaint(editor);
3158 break;
3159 }
3160 }
3161 }
3162 return 0;
3163 }
useful hacks and other patches not (yet) suitable for mainline