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riched20: WM_GETTEXT should return 0 on overflow but fill buffer anyway.
[wine/wine-kai.git] / dlls / riched20 / editor.c
blob1ffb1eacad36855c8aaec6bf2e11052b1d6cddc6
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
232 #define STACK_SIZE_DEFAULT 100
233 #define STACK_SIZE_MAX 1000
234
235 #define TEXT_LIMIT_DEFAULT 32767
236
237 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
238
239 static BOOL ME_RegisterEditorClass(HINSTANCE);
240
241 static const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
242 static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
243 static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
244 static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
245
246 int me_debug = 0;
247 HANDLE me_heap = NULL;
248
249 static BOOL ME_ListBoxRegistered = FALSE;
250 static BOOL ME_ComboBoxRegistered = FALSE;
251
252 static inline int is_version_nt(void)
253 {
254 return !(GetVersion() & 0x80000000);
255 }
256
257 static ME_TextBuffer *ME_MakeText(void) {
258
259 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
260
261 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
262 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
263
264 p1->prev = NULL;
265 p1->next = p2;
266 p2->prev = p1;
267 p2->next = NULL;
268 p1->member.para.next_para = p2;
269 p2->member.para.prev_para = p1;
270 p2->member.para.nCharOfs = 0;
271
272 buf->pFirst = p1;
273 buf->pLast = p2;
274 buf->pCharStyle = NULL;
275
276 return buf;
277 }
278
279
280 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
281 {
282 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
283 WCHAR *pText;
284
285 TRACE("%08x %p\n", dwFormat, stream);
286
287 do {
288 long nWideChars = 0;
289
290 if (!stream->dwSize)
291 {
292 ME_StreamInFill(stream);
293 if (stream->editstream->dwError)
294 break;
295 if (!stream->dwSize)
296 break;
297 }
298
299 if (!(dwFormat & SF_UNICODE))
300 {
301 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
302 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
303 pText = wszText;
304 }
305 else
306 {
307 nWideChars = stream->dwSize >> 1;
308 pText = (WCHAR *)stream->buffer;
309 }
310
311 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
312 if (stream->dwSize == 0)
313 break;
314 stream->dwSize = 0;
315 } while(1);
316 ME_CommitUndo(editor);
317 ME_UpdateRepaint(editor);
318 return 0;
319 }
320
321 static void ME_RTFCharAttrHook(RTF_Info *info)
322 {
323 CHARFORMAT2W fmt;
324 fmt.cbSize = sizeof(fmt);
325 fmt.dwMask = 0;
326 fmt.dwEffects = 0;
327
328 switch(info->rtfMinor)
329 {
330 case rtfPlain:
331 /* FIXME add more flags once they're implemented */
332 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
333 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
334 fmt.yHeight = 12*20; /* 12pt */
335 fmt.wWeight = 400;
336 break;
337 case rtfBold:
338 fmt.dwMask = CFM_BOLD;
339 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
340 break;
341 case rtfItalic:
342 fmt.dwMask = CFM_ITALIC;
343 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
344 break;
345 case rtfUnderline:
346 fmt.dwMask = CFM_UNDERLINE;
347 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
348 fmt.bUnderlineType = CFU_CF1UNDERLINE;
349 break;
350 case rtfNoUnderline:
351 fmt.dwMask = CFM_UNDERLINE;
352 fmt.dwEffects = 0;
353 break;
354 case rtfStrikeThru:
355 fmt.dwMask = CFM_STRIKEOUT;
356 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
357 break;
358 case rtfSubScript:
359 case rtfSuperScript:
360 case rtfSubScrShrink:
361 case rtfSuperScrShrink:
362 case rtfNoSuperSub:
363 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
364 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
365 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
366 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
367 break;
368 case rtfInvisible:
369 fmt.dwMask = CFM_HIDDEN;
370 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
371 break;
372 case rtfBackColor:
373 fmt.dwMask = CFM_BACKCOLOR;
374 fmt.dwEffects = 0;
375 if (info->rtfParam == 0)
376 fmt.dwEffects = CFE_AUTOBACKCOLOR;
377 else if (info->rtfParam != rtfNoParam)
378 {
379 RTFColor *c = RTFGetColor(info, info->rtfParam);
380 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
381 }
382 break;
383 case rtfForeColor:
384 fmt.dwMask = CFM_COLOR;
385 fmt.dwEffects = 0;
386 if (info->rtfParam == 0)
387 fmt.dwEffects = CFE_AUTOCOLOR;
388 else if (info->rtfParam != rtfNoParam)
389 {
390 RTFColor *c = RTFGetColor(info, info->rtfParam);
391 if (c)
392 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
393 else
394 fmt.crTextColor = 0;
395 }
396 break;
397 case rtfFontNum:
398 if (info->rtfParam != rtfNoParam)
399 {
400 RTFFont *f = RTFGetFont(info, info->rtfParam);
401 if (f)
402 {
403 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
404 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
405 fmt.bCharSet = f->rtfFCharSet;
406 fmt.dwMask = CFM_FACE | CFM_CHARSET;
407 }
408 }
409 break;
410 case rtfFontSize:
411 fmt.dwMask = CFM_SIZE;
412 if (info->rtfParam != rtfNoParam)
413 fmt.yHeight = info->rtfParam*10;
414 break;
415 }
416 if (fmt.dwMask) {
417 ME_Style *style2;
418 RTFFlushOutputBuffer(info);
419 /* FIXME too slow ? how come ? */
420 style2 = ME_ApplyStyle(info->style, &fmt);
421 ME_ReleaseStyle(info->style);
422 info->style = style2;
423 info->styleChanged = TRUE;
424 }
425 }
426
427 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
428 the same tags mean different things in different contexts */
429 static void ME_RTFParAttrHook(RTF_Info *info)
430 {
431 PARAFORMAT2 fmt;
432 fmt.cbSize = sizeof(fmt);
433 fmt.dwMask = 0;
434
435 switch(info->rtfMinor)
436 {
437 case rtfParDef: /* restores default paragraph attributes */
438 fmt.dwMask = PFM_ALIGNMENT | PFM_TABSTOPS | PFM_OFFSET | PFM_STARTINDENT;
439 fmt.wAlignment = PFA_LEFT;
440 fmt.cTabCount = 0;
441 fmt.dxOffset = fmt.dxStartIndent = 0;
442 RTFFlushOutputBuffer(info);
443 ME_GetParagraph(info->editor->pCursors[0].pRun)->member.para.bTable = FALSE;
444 break;
445 case rtfInTable:
446 {
447 ME_DisplayItem *para;
448
449 RTFFlushOutputBuffer(info);
450 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
451 assert(para->member.para.pCells);
452 para->member.para.bTable = TRUE;
453 return;
454 }
455 case rtfFirstIndent:
456 ME_GetSelectionParaFormat(info->editor, &fmt);
457 fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
458 fmt.dxStartIndent += info->rtfParam + fmt.dxOffset;
459 fmt.dxOffset = -info->rtfParam;
460 break;
461 case rtfLeftIndent:
462 ME_GetSelectionParaFormat(info->editor, &fmt);
463 fmt.dwMask = PFM_STARTINDENT;
464 fmt.dxStartIndent = -fmt.dxOffset + info->rtfParam;
465 break;
466 case rtfRightIndent:
467 fmt.dwMask = PFM_RIGHTINDENT;
468 fmt.dxRightIndent = info->rtfParam;
469 break;
470 case rtfQuadLeft:
471 case rtfQuadJust:
472 fmt.dwMask = PFM_ALIGNMENT;
473 fmt.wAlignment = PFA_LEFT;
474 break;
475 case rtfQuadRight:
476 fmt.dwMask = PFM_ALIGNMENT;
477 fmt.wAlignment = PFA_RIGHT;
478 break;
479 case rtfQuadCenter:
480 fmt.dwMask = PFM_ALIGNMENT;
481 fmt.wAlignment = PFA_CENTER;
482 break;
483 case rtfTabPos:
484 ME_GetSelectionParaFormat(info->editor, &fmt);
485 if (!(fmt.dwMask & PFM_TABSTOPS))
486 {
487 fmt.dwMask |= PFM_TABSTOPS;
488 fmt.cTabCount = 0;
489 }
490 if (fmt.cTabCount < MAX_TAB_STOPS)
491 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
492 break;
493 }
494 if (fmt.dwMask) {
495 RTFFlushOutputBuffer(info);
496 /* FIXME too slow ? how come ?*/
497 ME_SetSelectionParaFormat(info->editor, &fmt);
498 }
499 }
500
501 static void ME_RTFTblAttrHook(RTF_Info *info)
502 {
503 ME_DisplayItem *para;
504
505 switch (info->rtfMinor)
506 {
507 case rtfRowDef:
508 RTFFlushOutputBuffer(info);
509 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
510
511 /* Release possibly inherited cell definitions */
512 ME_DestroyTableCellList(para);
513
514 para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
515 para->member.para.pCells->nRightBoundary = 0;
516 para->member.para.pCells->next = NULL;
517 para->member.para.pLastCell = para->member.para.pCells;
518 break;
519 case rtfCellPos:
520 RTFFlushOutputBuffer(info);
521 para = ME_GetParagraph(info->editor->pCursors[0].pRun);
522
523 if (para->member.para.pLastCell->nRightBoundary)
524 {
525 ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
526
527 pCell->next = NULL;
528 para->member.para.pLastCell->next = pCell;
529 para->member.para.pLastCell = pCell;
530 }
531 para->member.para.pLastCell->nRightBoundary = info->rtfParam;
532 break;
533 }
534 }
535
536 static void ME_RTFReadHook(RTF_Info *info) {
537 switch(info->rtfClass)
538 {
539 case rtfGroup:
540 switch(info->rtfMajor)
541 {
542 case rtfBeginGroup:
543 if (info->stackTop < maxStack) {
544 memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
545 info->stack[info->stackTop].codePage = info->codePage;
546 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
547 }
548 info->stackTop++;
549 info->styleChanged = FALSE;
550 break;
551 case rtfEndGroup:
552 {
553 ME_Style *s;
554 RTFFlushOutputBuffer(info);
555 if (info->stackTop<=1) {
556 info->rtfClass = rtfEOF;
557 return;
558 }
559 info->stackTop--;
560 assert(info->stackTop >= 0);
561 if (info->styleChanged)
562 {
563 /* FIXME too slow ? how come ? */
564 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
565 ME_ReleaseStyle(info->style);
566 info->style = s;
567 info->codePage = info->stack[info->stackTop].codePage;
568 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
569 }
570 break;
571 }
572 }
573 break;
574 case rtfControl:
575 switch(info->rtfMajor)
576 {
577 case rtfCharAttr:
578 ME_RTFCharAttrHook(info);
579 break;
580 case rtfParAttr:
581 ME_RTFParAttrHook(info);
582 break;
583 case rtfTblAttr:
584 ME_RTFTblAttrHook(info);
585 break;
586 case rtfSpecialChar:
587 if (info->rtfMinor == rtfCell)
588 {
589 RTFFlushOutputBuffer(info);
590 ME_InsertTableCellFromCursor(info->editor, 0);
591 }
592 }
593 break;
594 }
595 }
596
597 void
598 ME_StreamInFill(ME_InStream *stream)
599 {
600 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
601 (BYTE *)stream->buffer,
602 sizeof(stream->buffer),
603 (LONG *)&stream->dwSize);
604 stream->dwUsed = 0;
605 }
606
607 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
608 {
609 RTF_Info parser;
610 ME_Style *style;
611 int from, to, to2, nUndoMode;
612 int nEventMask = editor->nEventMask;
613 ME_InStream inStream;
614
615 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, (UINT)format);
616 editor->nEventMask = 0;
617
618 ME_GetSelection(editor, &from, &to);
619 if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
620 style = ME_GetSelectionInsertStyle(editor);
621
622 ME_InternalDeleteText(editor, from, to-from);
623 }
624 else {
625 style = editor->pBuffer->pDefaultStyle;
626 ME_AddRefStyle(style);
627 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
628 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
629 from = to = 0;
630 ME_ClearTempStyle(editor);
631 /* FIXME restore default paragraph formatting ! */
632 }
633
634
635 /* Back up undo mode to a local variable */
636 nUndoMode = editor->nUndoMode;
637
638 /* Only create an undo if SFF_SELECTION is set */
639 if (!(format & SFF_SELECTION))
640 editor->nUndoMode = umIgnore;
641
642 inStream.editstream = stream;
643 inStream.editstream->dwError = 0;
644 inStream.dwSize = 0;
645 inStream.dwUsed = 0;
646
647 if (format & SF_RTF)
648 {
649 /* Check if it's really RTF, and if it is not, use plain text */
650 ME_StreamInFill(&inStream);
651 if (!inStream.editstream->dwError)
652 {
653 if (strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
654 {
655 format &= ~SF_RTF;
656 format |= SF_TEXT;
657 }
658 }
659 }
660
661 if (!inStream.editstream->dwError)
662 {
663 if (format & SF_RTF) {
664 /* setup the RTF parser */
665 memset(&parser, 0, sizeof parser);
666 RTFSetEditStream(&parser, &inStream);
667 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
668 parser.hwndEdit = editor->hWnd;
669 parser.editor = editor;
670 parser.style = style;
671 WriterInit(&parser);
672 RTFInit(&parser);
673 RTFSetReadHook(&parser, ME_RTFReadHook);
674 BeginFile(&parser);
675
676 /* do the parsing */
677 RTFRead(&parser);
678 RTFFlushOutputBuffer(&parser);
679 RTFDestroy(&parser);
680
681 style = parser.style;
682 }
683 else if (format & SF_TEXT)
684 ME_StreamInText(editor, format, &inStream, style);
685 else
686 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
687 ME_GetSelection(editor, &to, &to2);
688 /* put the cursor at the top */
689 if (!(format & SFF_SELECTION))
690 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
691 }
692
693 /* Restore saved undo mode */
694 editor->nUndoMode = nUndoMode;
695
696 /* even if we didn't add an undo, we need to commit anything on the stack */
697 ME_CommitUndo(editor);
698
699 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
700 if (!(format & SFF_SELECTION))
701 ME_EmptyUndoStack(editor);
702
703 ME_ReleaseStyle(style);
704 editor->nEventMask = nEventMask;
705 if (editor->bRedraw)
706 {
707 ME_UpdateRepaint(editor);
708 }
709 if (!(format & SFF_SELECTION)) {
710 ME_ClearTempStyle(editor);
711 }
712 ME_MoveCaret(editor);
713 ME_SendSelChange(editor);
714 ME_SendRequestResize(editor, FALSE);
715
716 return 0;
717 }
718
719
720 typedef struct tagME_RTFStringStreamStruct
721 {
722 char *string;
723 int pos;
724 int length;
725 } ME_RTFStringStreamStruct;
726
727 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
728 {
729 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
730 int count;
731
732 count = min(cb, pStruct->length - pStruct->pos);
733 memmove(lpBuff, pStruct->string + pStruct->pos, count);
734 pStruct->pos += count;
735 *pcb = count;
736 return 0;
737 }
738
739 static void
740 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
741 {
742 EDITSTREAM es;
743 ME_RTFStringStreamStruct data;
744
745 data.string = string;
746 data.length = strlen(string);
747 data.pos = 0;
748 es.dwCookie = (DWORD)&data;
749 es.pfnCallback = ME_ReadFromRTFString;
750 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es);
751 }
752
753
754 ME_DisplayItem *
755 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
756 {
757 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
758
759 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
760 item = ME_FindItemFwd(item, diParagraph);
761
762 if (!item)
763 return item;
764
765 nOffset -= item->member.para.nCharOfs;
766 if (nItemType == diParagraph) {
767 if (nItemOffset)
768 *nItemOffset = nOffset;
769 return item;
770 }
771
772 do {
773 item = ME_FindItemFwd(item, diRun);
774 } while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
775 if (item) {
776 nOffset -= item->member.run.nCharOfs;
777 if (nItemOffset)
778 *nItemOffset = nOffset;
779 }
780 return item;
781 }
782
783
784 static int
785 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
786 {
787 const int nLen = lstrlenW(text);
788 const int nTextLen = ME_GetTextLength(editor);
789 int nStart, nEnd;
790 int nMin, nMax;
791 ME_DisplayItem *item;
792 ME_DisplayItem *para;
793 WCHAR wLastChar = ' ';
794
795 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
796 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
797
798 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
799 FIXME("Flags 0x%08x not implemented\n",
800 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
801
802 nMin = chrg->cpMin;
803 if (chrg->cpMax == -1)
804 nMax = nTextLen;
805 else
806 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
807
808 /* when searching up, if cpMin < cpMax, then instead of searching
809 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
810 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
811 * case, it is always bigger than cpMin.
812 */
813 if (!(flags & FR_DOWN))
814 {
815 int nSwap = nMax;
816
817 nMax = nMin > nTextLen ? nTextLen : nMin;
818 if (nMin < nSwap || chrg->cpMax == -1)
819 nMin = 0;
820 else
821 nMin = nSwap;
822 }
823
824 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
825 {
826 if (chrgText)
827 chrgText->cpMin = chrgText->cpMax = -1;
828 return -1;
829 }
830
831 if (flags & FR_DOWN) /* Forward search */
832 {
833 /* If possible, find the character before where the search starts */
834 if ((flags & FR_WHOLEWORD) && nMin)
835 {
836 nStart = nMin - 1;
837 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
838 if (!item)
839 {
840 if (chrgText)
841 chrgText->cpMin = chrgText->cpMax = -1;
842 return -1;
843 }
844 wLastChar = item->member.run.strText->szData[nStart];
845 }
846
847 nStart = nMin;
848 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
849 if (!item)
850 {
851 if (chrgText)
852 chrgText->cpMin = chrgText->cpMax = -1;
853 return -1;
854 }
855
856 para = ME_GetParagraph(item);
857 while (item
858 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
859 {
860 ME_DisplayItem *pCurItem = item;
861 int nCurStart = nStart;
862 int nMatched = 0;
863
864 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
865 {
866 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
867 break;
868
869 nMatched++;
870 if (nMatched == nLen)
871 {
872 ME_DisplayItem *pNextItem = pCurItem;
873 int nNextStart = nCurStart;
874 WCHAR wNextChar;
875
876 /* Check to see if next character is a whitespace */
877 if (flags & FR_WHOLEWORD)
878 {
879 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
880 {
881 pNextItem = ME_FindItemFwd(pCurItem, diRun);
882 nNextStart = -nMatched;
883 }
884
885 if (pNextItem)
886 wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
887 else
888 wNextChar = ' ';
889
890 if (isalnumW(wNextChar))
891 break;
892 }
893
894 nStart += para->member.para.nCharOfs + pCurItem->member.run.nCharOfs;
895 if (chrgText)
896 {
897 chrgText->cpMin = nStart;
898 chrgText->cpMax = nStart + nLen;
899 }
900 TRACE("found at %d-%d\n", nStart, nStart + nLen);
901 return nStart;
902 }
903 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
904 {
905 pCurItem = ME_FindItemFwd(pCurItem, diRun);
906 para = ME_GetParagraph(pCurItem);
907 nCurStart = -nMatched;
908 }
909 }
910 if (pCurItem)
911 wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
912 else
913 wLastChar = ' ';
914
915 nStart++;
916 if (nStart == ME_StrLen(item->member.run.strText))
917 {
918 item = ME_FindItemFwd(item, diRun);
919 para = ME_GetParagraph(item);
920 nStart = 0;
921 }
922 }
923 }
924 else /* Backward search */
925 {
926 /* If possible, find the character after where the search ends */
927 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
928 {
929 nEnd = nMax + 1;
930 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
931 if (!item)
932 {
933 if (chrgText)
934 chrgText->cpMin = chrgText->cpMax = -1;
935 return -1;
936 }
937 wLastChar = item->member.run.strText->szData[nEnd];
938 }
939
940 nEnd = nMax;
941 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
942 if (!item)
943 {
944 if (chrgText)
945 chrgText->cpMin = chrgText->cpMax = -1;
946 return -1;
947 }
948
949 para = ME_GetParagraph(item);
950
951 while (item
952 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
953 {
954 ME_DisplayItem *pCurItem = item;
955 int nCurEnd = nEnd;
956 int nMatched = 0;
957
958 if (nCurEnd - nMatched == 0)
959 {
960 pCurItem = ME_FindItemBack(pCurItem, diRun);
961 para = ME_GetParagraph(pCurItem);
962 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
963 }
964
965 while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
966 {
967 if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
968 break;
969
970 nMatched++;
971 if (nMatched == nLen)
972 {
973 ME_DisplayItem *pPrevItem = pCurItem;
974 int nPrevEnd = nCurEnd;
975 WCHAR wPrevChar;
976
977 /* Check to see if previous character is a whitespace */
978 if (flags & FR_WHOLEWORD)
979 {
980 if (nPrevEnd - nMatched == 0)
981 {
982 pPrevItem = ME_FindItemBack(pCurItem, diRun);
983 if (pPrevItem)
984 nPrevEnd = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
985 }
986
987 if (pPrevItem)
988 wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
989 else
990 wPrevChar = ' ';
991
992 if (isalnumW(wPrevChar))
993 break;
994 }
995
996 nStart = para->member.para.nCharOfs + pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
997 if (chrgText)
998 {
999 chrgText->cpMin = nStart;
1000 chrgText->cpMax = nStart + nLen;
1001 }
1002 TRACE("found at %d-%d\n", nStart, nStart + nLen);
1003 return nStart;
1004 }
1005 if (nCurEnd - nMatched == 0)
1006 {
1007 pCurItem = ME_FindItemBack(pCurItem, diRun);
1008 /* Don't care about pCurItem becoming NULL here; it's already taken
1009 * care of in the exterior loop condition */
1010 para = ME_GetParagraph(pCurItem);
1011 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
1012 }
1013 }
1014 if (pCurItem)
1015 wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
1016 else
1017 wLastChar = ' ';
1018
1019 nEnd--;
1020 if (nEnd < 0)
1021 {
1022 item = ME_FindItemBack(item, diRun);
1023 para = ME_GetParagraph(item);
1024 nEnd = ME_StrLen(item->member.run.strText);
1025 }
1026 }
1027 }
1028 TRACE("not found\n");
1029 if (chrgText)
1030 chrgText->cpMin = chrgText->cpMax = -1;
1031 return -1;
1032 }
1033
1034
1035 static BOOL
1036 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
1037 {
1038 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
1039 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
1040
1041 switch (nKey)
1042 {
1043 case VK_LEFT:
1044 case VK_RIGHT:
1045 case VK_UP:
1046 case VK_DOWN:
1047 case VK_HOME:
1048 case VK_END:
1049 case VK_PRIOR:
1050 case VK_NEXT:
1051 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
1052 return TRUE;
1053 case VK_BACK:
1054 case VK_DELETE:
1055 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
1056 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY)
1057 return FALSE;
1058 if (ME_IsSelection(editor))
1059 ME_DeleteSelection(editor);
1060 else if (nKey == VK_DELETE || ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
1061 ME_DeleteTextAtCursor(editor, 1, 1);
1062 else
1063 return TRUE;
1064 ME_CommitUndo(editor);
1065 ME_UpdateRepaint(editor);
1066 ME_SendRequestResize(editor, FALSE);
1067 return TRUE;
1068
1069 default:
1070 if (ctrl_is_down)
1071 {
1072 if (nKey == 'W')
1073 {
1074 CHARFORMAT2W chf;
1075 char buf[2048];
1076 chf.cbSize = sizeof(chf);
1077
1078 ME_GetSelectionCharFormat(editor, &chf);
1079 ME_DumpStyleToBuf(&chf, buf);
1080 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1081 }
1082 if (nKey == 'Q')
1083 {
1084 ME_CheckCharOffsets(editor);
1085 }
1086 }
1087 }
1088 return FALSE;
1089 }
1090
1091 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
1092 {
1093 CHARRANGE selrange;
1094 HMENU menu;
1095 int seltype = 0;
1096 if(!editor->lpOleCallback)
1097 return FALSE;
1098 ME_GetSelection(editor, (int *)&selrange.cpMin, (int *)&selrange.cpMax);
1099 if(selrange.cpMin == selrange.cpMax)
1100 seltype |= SEL_EMPTY;
1101 else
1102 {
1103 /* FIXME: Handle objects */
1104 seltype |= SEL_TEXT;
1105 if(selrange.cpMax-selrange.cpMin > 1)
1106 seltype |= SEL_MULTICHAR;
1107 }
1108 if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
1109 {
1110 TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
1111 DestroyMenu(menu);
1112 }
1113 return TRUE;
1114 }
1115
1116 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
1117 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
1118 HDC hDC;
1119 int i;
1120 ed->hWnd = hWnd;
1121 ed->bEmulateVersion10 = FALSE;
1122 ed->pBuffer = ME_MakeText();
1123 hDC = GetDC(hWnd);
1124 ME_MakeFirstParagraph(hDC, ed->pBuffer);
1125 ReleaseDC(hWnd, hDC);
1126 ed->bCaretShown = FALSE;
1127 ed->nCursors = 2;
1128 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
1129 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1130 ed->pCursors[0].nOffset = 0;
1131 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
1132 ed->pCursors[1].nOffset = 0;
1133 ed->nLastTotalLength = ed->nTotalLength = 0;
1134 ed->nHeight = 0;
1135 ed->nUDArrowX = -1;
1136 ed->nSequence = 0;
1137 ed->rgbBackColor = -1;
1138 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1139 ed->bCaretAtEnd = FALSE;
1140 ed->nEventMask = 0;
1141 ed->nModifyStep = 0;
1142 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
1143 ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
1144 ed->nUndoStackSize = 0;
1145 ed->nUndoLimit = STACK_SIZE_DEFAULT;
1146 ed->nUndoMode = umAddToUndo;
1147 ed->nParagraphs = 1;
1148 ed->nLastSelStart = ed->nLastSelEnd = 0;
1149 ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
1150 ed->nZoomNumerator = ed->nZoomDenominator = 0;
1151 ed->bRedraw = TRUE;
1152 ed->bHideSelection = FALSE;
1153 ed->nInvalidOfs = -1;
1154 ed->pfnWordBreak = NULL;
1155 ed->lpOleCallback = NULL;
1156 ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
1157 ed->AutoURLDetect_bEnable = FALSE;
1158 ed->bHaveFocus = FALSE;
1159 GetClientRect(hWnd, &ed->rcFormat);
1160 for (i=0; i<HFONT_CACHE_SIZE; i++)
1161 {
1162 ed->pFontCache[i].nRefs = 0;
1163 ed->pFontCache[i].nAge = 0;
1164 ed->pFontCache[i].hFont = NULL;
1165 }
1166
1167 ME_CheckCharOffsets(ed);
1168
1169 if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
1170 ed->cPasswordMask = '*';
1171 else
1172 ed->cPasswordMask = 0;
1173
1174 return ed;
1175 }
1176
1177 typedef struct tagME_GlobalDestStruct
1178 {
1179 HGLOBAL hData;
1180 int nLength;
1181 } ME_GlobalDestStruct;
1182
1183 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1184 {
1185 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1186 int i;
1187 WORD *pSrc, *pDest;
1188
1189 cb = cb >> 1;
1190 pDest = (WORD *)lpBuff;
1191 pSrc = (WORD *)GlobalLock(pData->hData);
1192 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1193 pDest[i] = pSrc[pData->nLength+i];
1194 }
1195 pData->nLength += i;
1196 *pcb = 2*i;
1197 GlobalUnlock(pData->hData);
1198 return 0;
1199 }
1200
1201 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1202 {
1203 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
1204 int i;
1205 BYTE *pSrc, *pDest;
1206
1207 pDest = lpBuff;
1208 pSrc = (BYTE *)GlobalLock(pData->hData);
1209 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
1210 pDest[i] = pSrc[pData->nLength+i];
1211 }
1212 pData->nLength += i;
1213 *pcb = i;
1214 GlobalUnlock(pData->hData);
1215 return 0;
1216 }
1217
1218
1219 void ME_DestroyEditor(ME_TextEditor *editor)
1220 {
1221 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
1222 ME_DisplayItem *p = pFirst, *pNext = NULL;
1223 int i;
1224
1225 ME_ClearTempStyle(editor);
1226 ME_EmptyUndoStack(editor);
1227 while(p) {
1228 pNext = p->next;
1229 ME_DestroyDisplayItem(p);
1230 p = pNext;
1231 }
1232 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
1233 for (i=0; i<HFONT_CACHE_SIZE; i++)
1234 {
1235 if (editor->pFontCache[i].hFont)
1236 DeleteObject(editor->pFontCache[i].hFont);
1237 }
1238 DeleteObject(editor->hbrBackground);
1239 if(editor->lpOleCallback)
1240 IUnknown_Release(editor->lpOleCallback);
1241
1242 FREE_OBJ(editor->pBuffer);
1243 FREE_OBJ(editor->pCursors);
1244
1245 FREE_OBJ(editor);
1246 }
1247
1248 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1249 {
1250 TRACE("\n");
1251 switch (fdwReason)
1252 {
1253 case DLL_PROCESS_ATTACH:
1254 DisableThreadLibraryCalls(hinstDLL);
1255 me_heap = HeapCreate (0, 0x10000, 0);
1256 if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
1257 LookupInit();
1258 break;
1259
1260 case DLL_PROCESS_DETACH:
1261 UnregisterClassW(RichEdit20W, 0);
1262 UnregisterClassW(RichEdit50W, 0);
1263 UnregisterClassA("RichEdit20A", 0);
1264 UnregisterClassA("RichEdit50A", 0);
1265 if (ME_ListBoxRegistered)
1266 UnregisterClassW(REListBox20W, 0);
1267 if (ME_ComboBoxRegistered)
1268 UnregisterClassW(REComboBox20W, 0);
1269 LookupCleanup();
1270 HeapDestroy (me_heap);
1271 me_heap = NULL;
1272 break;
1273 }
1274 return TRUE;
1275 }
1276
1277
1278 #define UNSUPPORTED_MSG(e) \
1279 case e: \
1280 FIXME(#e ": stub\n"); \
1281 return DefWindowProcW(hWnd, msg, wParam, lParam);
1282
1283 static const char * const edit_messages[] = {
1284 "EM_GETSEL",
1285 "EM_SETSEL",
1286 "EM_GETRECT",
1287 "EM_SETRECT",
1288 "EM_SETRECTNP",
1289 "EM_SCROLL",
1290 "EM_LINESCROLL",
1291 "EM_SCROLLCARET",
1292 "EM_GETMODIFY",
1293 "EM_SETMODIFY",
1294 "EM_GETLINECOUNT",
1295 "EM_LINEINDEX",
1296 "EM_SETHANDLE",
1297 "EM_GETHANDLE",
1298 "EM_GETTHUMB",
1299 "EM_UNKNOWN_BF",
1300 "EM_UNKNOWN_C0",
1301 "EM_LINELENGTH",
1302 "EM_REPLACESEL",
1303 "EM_UNKNOWN_C3",
1304 "EM_GETLINE",
1305 "EM_LIMITTEXT",
1306 "EM_CANUNDO",
1307 "EM_UNDO",
1308 "EM_FMTLINES",
1309 "EM_LINEFROMCHAR",
1310 "EM_UNKNOWN_CA",
1311 "EM_SETTABSTOPS",
1312 "EM_SETPASSWORDCHAR",
1313 "EM_EMPTYUNDOBUFFER",
1314 "EM_GETFIRSTVISIBLELINE",
1315 "EM_SETREADONLY",
1316 "EM_SETWORDBREAKPROC",
1317 "EM_GETWORDBREAKPROC",
1318 "EM_GETPASSWORDCHAR",
1319 "EM_SETMARGINS",
1320 "EM_GETMARGINS",
1321 "EM_GETLIMITTEXT",
1322 "EM_POSFROMCHAR",
1323 "EM_CHARFROMPOS"
1324 };
1325
1326 static const char * const richedit_messages[] = {
1327 "EM_CANPASTE",
1328 "EM_DISPLAYBAND",
1329 "EM_EXGETSEL",
1330 "EM_EXLIMITTEXT",
1331 "EM_EXLINEFROMCHAR",
1332 "EM_EXSETSEL",
1333 "EM_FINDTEXT",
1334 "EM_FORMATRANGE",
1335 "EM_GETCHARFORMAT",
1336 "EM_GETEVENTMASK",
1337 "EM_GETOLEINTERFACE",
1338 "EM_GETPARAFORMAT",
1339 "EM_GETSELTEXT",
1340 "EM_HIDESELECTION",
1341 "EM_PASTESPECIAL",
1342 "EM_REQUESTRESIZE",
1343 "EM_SELECTIONTYPE",
1344 "EM_SETBKGNDCOLOR",
1345 "EM_SETCHARFORMAT",
1346 "EM_SETEVENTMASK",
1347 "EM_SETOLECALLBACK",
1348 "EM_SETPARAFORMAT",
1349 "EM_SETTARGETDEVICE",
1350 "EM_STREAMIN",
1351 "EM_STREAMOUT",
1352 "EM_GETTEXTRANGE",
1353 "EM_FINDWORDBREAK",
1354 "EM_SETOPTIONS",
1355 "EM_GETOPTIONS",
1356 "EM_FINDTEXTEX",
1357 "EM_GETWORDBREAKPROCEX",
1358 "EM_SETWORDBREAKPROCEX",
1359 "EM_SETUNDOLIMIT",
1360 "EM_UNKNOWN_USER_83",
1361 "EM_REDO",
1362 "EM_CANREDO",
1363 "EM_GETUNDONAME",
1364 "EM_GETREDONAME",
1365 "EM_STOPGROUPTYPING",
1366 "EM_SETTEXTMODE",
1367 "EM_GETTEXTMODE",
1368 "EM_AUTOURLDETECT",
1369 "EM_GETAUTOURLDETECT",
1370 "EM_SETPALETTE",
1371 "EM_GETTEXTEX",
1372 "EM_GETTEXTLENGTHEX",
1373 "EM_SHOWSCROLLBAR",
1374 "EM_SETTEXTEX",
1375 "EM_UNKNOWN_USER_98",
1376 "EM_UNKNOWN_USER_99",
1377 "EM_SETPUNCTUATION",
1378 "EM_GETPUNCTUATION",
1379 "EM_SETWORDWRAPMODE",
1380 "EM_GETWORDWRAPMODE",
1381 "EM_SETIMECOLOR",
1382 "EM_GETIMECOLOR",
1383 "EM_SETIMEOPTIONS",
1384 "EM_GETIMEOPTIONS",
1385 "EM_CONVPOSITION",
1386 "EM_UNKNOWN_USER_109",
1387 "EM_UNKNOWN_USER_110",
1388 "EM_UNKNOWN_USER_111",
1389 "EM_UNKNOWN_USER_112",
1390 "EM_UNKNOWN_USER_113",
1391 "EM_UNKNOWN_USER_114",
1392 "EM_UNKNOWN_USER_115",
1393 "EM_UNKNOWN_USER_116",
1394 "EM_UNKNOWN_USER_117",
1395 "EM_UNKNOWN_USER_118",
1396 "EM_UNKNOWN_USER_119",
1397 "EM_SETLANGOPTIONS",
1398 "EM_GETLANGOPTIONS",
1399 "EM_GETIMECOMPMODE",
1400 "EM_FINDTEXTW",
1401 "EM_FINDTEXTEXW",
1402 "EM_RECONVERSION",
1403 "EM_SETIMEMODEBIAS",
1404 "EM_GETIMEMODEBIAS"
1405 };
1406
1407 static const char *
1408 get_msg_name(UINT msg)
1409 {
1410 if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
1411 return edit_messages[msg - EM_GETSEL];
1412 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
1413 return richedit_messages[msg - EM_CANPASTE];
1414 return "";
1415 }
1416
1417 static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
1418 LPARAM lParam, BOOL unicode)
1419 {
1420 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
1421
1422 TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
1423 hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
1424
1425 if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
1426 ERR("called with invalid hWnd %p - application bug?\n", hWnd);
1427 return 0;
1428 }
1429
1430 switch(msg) {
1431
1432 UNSUPPORTED_MSG(EM_DISPLAYBAND)
1433 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
1434 UNSUPPORTED_MSG(EM_FMTLINES)
1435 UNSUPPORTED_MSG(EM_FORMATRANGE)
1436 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
1437 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
1438 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
1439 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
1440 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
1441 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
1442 UNSUPPORTED_MSG(EM_GETREDONAME)
1443 UNSUPPORTED_MSG(EM_GETTEXTMODE)
1444 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
1445 UNSUPPORTED_MSG(EM_GETUNDONAME)
1446 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
1447 UNSUPPORTED_MSG(EM_PASTESPECIAL)
1448 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
1449 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
1450 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
1451 UNSUPPORTED_MSG(EM_SETFONTSIZE)
1452 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
1453 UNSUPPORTED_MSG(EM_SETPALETTE)
1454 UNSUPPORTED_MSG(EM_SETTABSTOPS)
1455 UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
1456 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
1457 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
1458 UNSUPPORTED_MSG(WM_STYLECHANGING)
1459 UNSUPPORTED_MSG(WM_STYLECHANGED)
1460 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
1461
1462 /* Messages specific to Richedit controls */
1463
1464 case EM_STREAMIN:
1465 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam);
1466 case EM_STREAMOUT:
1467 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
1468 case WM_GETDLGCODE:
1469 {
1470 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
1471 if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
1472 {
1473 int vk = (int)((LPMSG)lParam)->wParam;
1474 /* if style says we want return key */
1475 if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
1476 {
1477 code |= DLGC_WANTMESSAGE;
1478 }
1479 /* we always handle ctrl-tab */
1480 if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
1481 {
1482 code |= DLGC_WANTMESSAGE;
1483 }
1484 }
1485 return code;
1486 }
1487 case WM_NCCREATE:
1488 {
1489 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
1490 TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
1491 editor = ME_MakeEditor(hWnd);
1492 SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
1493 return TRUE;
1494 }
1495 case EM_EMPTYUNDOBUFFER:
1496 ME_EmptyUndoStack(editor);
1497 return 0;
1498 case EM_GETSEL:
1499 {
1500 /* Note: wParam/lParam can be NULL */
1501 UINT from, to;
1502 PUINT pfrom = wParam ? (PUINT)wParam : &from;
1503 PUINT pto = lParam ? (PUINT)lParam : &to;
1504 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
1505 if ((*pfrom|*pto) & 0xFFFF0000)
1506 return -1;
1507 return MAKELONG(*pfrom,*pto);
1508 }
1509 case EM_EXGETSEL:
1510 {
1511 CHARRANGE *pRange = (CHARRANGE *)lParam;
1512 ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
1513 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
1514 return 0;
1515 }
1516 case EM_SETUNDOLIMIT:
1517 {
1518 if ((int)wParam < 0)
1519 editor->nUndoLimit = STACK_SIZE_DEFAULT;
1520 else
1521 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
1522 /* Setting a max stack size keeps wine from getting killed
1523 for hogging memory. Windows allocates all this memory at once, so
1524 no program would realistically set a value above our maximum. */
1525 return editor->nUndoLimit;
1526 }
1527 case EM_CANUNDO:
1528 return editor->pUndoStack != NULL;
1529 case EM_CANREDO:
1530 return editor->pRedoStack != NULL;
1531 case WM_UNDO: /* FIXME: actually not the same */
1532 case EM_UNDO:
1533 ME_Undo(editor);
1534 return 0;
1535 case EM_REDO:
1536 ME_Redo(editor);
1537 return 0;
1538 case EM_GETOPTIONS:
1539 {
1540 /* these flags are equivalent to the ES_* counterparts */
1541 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
1542 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
1543 DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
1544
1545 return settings;
1546 }
1547 case EM_SETOPTIONS:
1548 {
1549 /* these flags are equivalent to ES_* counterparts
1550 * ECO_READONLY is already implemented in the code, only requires
1551 * setting the bit to work
1552 */
1553 DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
1554 ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN;
1555 DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
1556 DWORD settings = mask & raw;
1557
1558 switch(wParam)
1559 {
1560 case ECOOP_SET:
1561 settings = lParam;
1562 break;
1563 case ECOOP_OR:
1564 settings |= lParam;
1565 break;
1566 case ECOOP_AND:
1567 settings &= lParam;
1568 break;
1569 case ECOOP_XOR:
1570 settings ^= lParam;
1571 }
1572 SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
1573
1574 if (lParam & ECO_AUTOWORDSELECTION)
1575 FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
1576 if (lParam & ECO_SELECTIONBAR)
1577 FIXME("ECO_SELECTIONBAR not implemented yet!\n");
1578 if (lParam & ECO_VERTICAL)
1579 FIXME("ECO_VERTICAL not implemented yet!\n");
1580 if (lParam & ECO_AUTOHSCROLL)
1581 FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
1582 if (lParam & ECO_AUTOVSCROLL)
1583 FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
1584 if (lParam & ECO_NOHIDESEL)
1585 FIXME("ECO_NOHIDESEL not implemented yet!\n");
1586 if (lParam & ECO_WANTRETURN)
1587 FIXME("ECO_WANTRETURN not implemented yet!\n");
1588
1589 return settings;
1590 }
1591 case EM_SETSEL:
1592 {
1593 ME_InvalidateSelection(editor);
1594 ME_SetSelection(editor, wParam, lParam);
1595 ME_InvalidateSelection(editor);
1596 ME_SendSelChange(editor);
1597 return 0;
1598 }
1599 case EM_SETSCROLLPOS:
1600 {
1601 POINT *point = (POINT *)lParam;
1602 ME_ScrollAbs(editor, point->y);
1603 return 0;
1604 }
1605 case EM_AUTOURLDETECT:
1606 {
1607 if (wParam==1 || wParam ==0)
1608 {
1609 editor->AutoURLDetect_bEnable = (BOOL)wParam;
1610 return 0;
1611 }
1612 return E_INVALIDARG;
1613 }
1614 case EM_GETAUTOURLDETECT:
1615 {
1616 return editor->AutoURLDetect_bEnable;
1617 }
1618 case EM_EXSETSEL:
1619 {
1620 int end;
1621 CHARRANGE range = *(CHARRANGE *)lParam;
1622
1623 TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
1624
1625 ME_InvalidateSelection(editor);
1626 end = ME_SetSelection(editor, range.cpMin, range.cpMax);
1627 ME_InvalidateSelection(editor);
1628 ME_SendSelChange(editor);
1629
1630 return end;
1631 }
1632 case EM_SHOWSCROLLBAR:
1633 {
1634 ShowScrollBar(editor->hWnd, wParam, lParam);
1635 return 0;
1636 }
1637 case EM_SETTEXTEX:
1638 {
1639 LPWSTR wszText;
1640 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
1641 size_t len;
1642 int from, to;
1643 ME_Style *style;
1644 int oldModify = editor->nModifyStep;
1645
1646 if (!pStruct) return 0;
1647
1648 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
1649 pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
1650 pStruct->flags, pStruct->codepage);
1651
1652 /* FIXME: make use of pStruct->codepage in the to unicode translation */
1653 wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
1654 len = wszText ? lstrlenW(wszText) : 0;
1655
1656 /* FIXME: this should support RTF strings too, according to MSDN */
1657 if (pStruct->flags & ST_SELECTION) {
1658 ME_GetSelection(editor, &from, &to);
1659 style = ME_GetSelectionInsertStyle(editor);
1660 ME_InternalDeleteText(editor, from, to - from);
1661 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1662 ME_ReleaseStyle(style);
1663 }
1664 else {
1665 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1666 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
1667 len = 1;
1668 }
1669 ME_CommitUndo(editor);
1670 if (!(pStruct->flags & ST_KEEPUNDO))
1671 {
1672 editor->nModifyStep = oldModify;
1673 ME_EmptyUndoStack(editor);
1674 }
1675 ME_UpdateRepaint(editor);
1676 return len;
1677 }
1678 case EM_SETBKGNDCOLOR:
1679 {
1680 LRESULT lColor = ME_GetBackColor(editor);
1681 if (editor->rgbBackColor != -1)
1682 DeleteObject(editor->hbrBackground);
1683 if (wParam)
1684 {
1685 editor->rgbBackColor = -1;
1686 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1687 }
1688 else
1689 {
1690 editor->rgbBackColor = lParam;
1691 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
1692 }
1693 if (editor->bRedraw)
1694 {
1695 InvalidateRect(hWnd, NULL, TRUE);
1696 UpdateWindow(hWnd);
1697 }
1698 return lColor;
1699 }
1700 case EM_GETMODIFY:
1701 return editor->nModifyStep == 0 ? 0 : 1;
1702 case EM_SETMODIFY:
1703 {
1704 if (wParam)
1705 editor->nModifyStep = 1;
1706 else
1707 editor->nModifyStep = 0;
1708
1709 return 0;
1710 }
1711 case EM_SETREADONLY:
1712 {
1713 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
1714 if (wParam)
1715 nStyle |= ES_READONLY;
1716 else
1717 nStyle &= ~ES_READONLY;
1718 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
1719 return 0;
1720 }
1721 case EM_SETEVENTMASK:
1722 {
1723 DWORD nOldMask = editor->nEventMask;
1724
1725 editor->nEventMask = lParam;
1726 return nOldMask;
1727 }
1728 case EM_GETEVENTMASK:
1729 return editor->nEventMask;
1730 case EM_SETCHARFORMAT:
1731 {
1732 CHARFORMAT2W buf, *p;
1733 BOOL bRepaint = TRUE;
1734 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
1735 if (p == NULL) return 0;
1736 if (!wParam)
1737 ME_SetDefaultCharFormat(editor, p);
1738 else if (wParam == (SCF_WORD | SCF_SELECTION)) {
1739 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
1740 return 0;
1741 } else if (wParam == SCF_ALL) {
1742 if (editor->mode & TM_PLAINTEXT)
1743 ME_SetDefaultCharFormat(editor, p);
1744 else
1745 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
1746 } else if (editor->mode & TM_PLAINTEXT) {
1747 return 0;
1748 } else {
1749 int from, to;
1750 ME_GetSelection(editor, &from, &to);
1751 bRepaint = (from != to);
1752 ME_SetSelectionCharFormat(editor, p);
1753 }
1754 editor->nModifyStep = 1;
1755 ME_CommitUndo(editor);
1756 if (bRepaint)
1757 ME_RewrapRepaint(editor);
1758 return 1;
1759 }
1760 case EM_GETCHARFORMAT:
1761 {
1762 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
1763 if (dst->cbSize != sizeof(CHARFORMATA) &&
1764 dst->cbSize != sizeof(CHARFORMATW) &&
1765 dst->cbSize != sizeof(CHARFORMAT2A) &&
1766 dst->cbSize != sizeof(CHARFORMAT2W))
1767 return 0;
1768 tmp.cbSize = sizeof(tmp);
1769 if (!wParam)
1770 ME_GetDefaultCharFormat(editor, &tmp);
1771 else
1772 ME_GetSelectionCharFormat(editor, &tmp);
1773 ME_CopyToCFAny(dst, &tmp);
1774 return tmp.dwMask;
1775 }
1776 case EM_SETPARAFORMAT:
1777 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1778 ME_RewrapRepaint(editor);
1779 ME_CommitUndo(editor);
1780 return 0;
1781 case EM_GETPARAFORMAT:
1782 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1783 return 0;
1784 case EM_GETFIRSTVISIBLELINE:
1785 {
1786 ME_DisplayItem *p = editor->pBuffer->pFirst;
1787 int y = ME_GetYScrollPos(editor);
1788 int ypara = 0;
1789 int count = 0;
1790 int ystart, yend;
1791 while(p) {
1792 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
1793 if (p->type == diTextEnd)
1794 break;
1795 if (p->type == diParagraph) {
1796 ypara = p->member.para.nYPos;
1797 continue;
1798 }
1799 ystart = ypara + p->member.row.nYPos;
1800 yend = ystart + p->member.row.nHeight;
1801 if (y < yend) {
1802 break;
1803 }
1804 count++;
1805 }
1806 return count;
1807 }
1808 case EM_HIDESELECTION:
1809 {
1810 editor->bHideSelection = (wParam != 0);
1811 ME_InvalidateSelection(editor);
1812 return 0;
1813 }
1814 case EM_LINESCROLL:
1815 {
1816 ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
1817 return TRUE; /* Should return false if a single line richedit control */
1818 }
1819 case WM_CLEAR:
1820 {
1821 int from, to;
1822 ME_GetSelection(editor, &from, &to);
1823 ME_InternalDeleteText(editor, from, to-from);
1824 ME_CommitUndo(editor);
1825 ME_UpdateRepaint(editor);
1826 return 0;
1827 }
1828 case EM_REPLACESEL:
1829 {
1830 int from, to;
1831 ME_Style *style;
1832 LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
1833 size_t len = wszText ? lstrlenW(wszText) : 0;
1834 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
1835
1836 ME_GetSelection(editor, &from, &to);
1837 style = ME_GetSelectionInsertStyle(editor);
1838 ME_InternalDeleteText(editor, from, to-from);
1839 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1840 ME_ReleaseStyle(style);
1841 /* drop temporary style if line end */
1842 /*
1843 * FIXME question: does abc\n mean: put abc,
1844 * clear temp style, put \n? (would require a change)
1845 */
1846 if (len>0 && wszText[len-1] == '\n')
1847 ME_ClearTempStyle(editor);
1848 ME_EndToUnicode(unicode, wszText);
1849 ME_CommitUndo(editor);
1850 if (!wParam)
1851 ME_EmptyUndoStack(editor);
1852 ME_UpdateRepaint(editor);
1853 return len;
1854 }
1855 case EM_SCROLLCARET:
1856 {
1857 int top, bottom; /* row's edges relative to document top */
1858 int nPos;
1859 ME_DisplayItem *para, *row;
1860
1861 nPos = ME_GetYScrollPos(editor);
1862 row = ME_RowStart(editor->pCursors[0].pRun);
1863 para = ME_GetParagraph(row);
1864 top = para->member.para.nYPos + row->member.row.nYPos;
1865 bottom = top + row->member.row.nHeight;
1866
1867 if (top < nPos) /* caret above window */
1868 ME_ScrollAbs(editor, top);
1869 else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
1870 ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
1871 return 0;
1872 }
1873 case WM_SETFONT:
1874 {
1875 LOGFONTW lf;
1876 CHARFORMAT2W fmt;
1877 HDC hDC;
1878 BOOL bRepaint = LOWORD(lParam);
1879
1880 if (!wParam)
1881 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
1882 GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
1883 hDC = GetDC(hWnd);
1884 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
1885 ReleaseDC(hWnd, hDC);
1886 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
1887 ME_SetDefaultCharFormat(editor, &fmt);
1888
1889 ME_CommitUndo(editor);
1890 if (bRepaint)
1891 ME_RewrapRepaint(editor);
1892 return 0;
1893 }
1894 case WM_SETTEXT:
1895 {
1896 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1897 if (lParam)
1898 {
1899 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
1900 if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
1901 {
1902 /* Undocumented: WM_SETTEXT supports RTF text */
1903 ME_StreamInRTFString(editor, 0, (char *)lParam);
1904 }
1905 else
1906 {
1907 LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
1908 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
1909 if (lstrlenW(wszText) > 0)
1910 {
1911 int len = -1;
1912
1913 /* uses default style! */
1914 if (!(GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
1915 {
1916 WCHAR * p;
1917
1918 p = wszText;
1919 while (*p != '\0' && *p != '\r' && *p != '\n') p++;
1920 len = p - wszText;
1921 }
1922 ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
1923 }
1924 ME_EndToUnicode(unicode, wszText);
1925 }
1926 }
1927 else
1928 TRACE("WM_SETTEXT - NULL\n");
1929 ME_CommitUndo(editor);
1930 ME_EmptyUndoStack(editor);
1931 ME_SetSelection(editor, 0, 0);
1932 editor->nModifyStep = 0;
1933 ME_UpdateRepaint(editor);
1934 return 1;
1935 }
1936 case EM_CANPASTE:
1937 {
1938 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1939 if (IsClipboardFormatAvailable(nRTFFormat))
1940 return TRUE;
1941 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1942 return TRUE;
1943 return FALSE;
1944 }
1945 case WM_PASTE:
1946 {
1947 DWORD dwFormat = 0;
1948 EDITSTREAM es;
1949 ME_GlobalDestStruct gds;
1950 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1951 UINT cf = 0;
1952
1953 if (IsClipboardFormatAvailable(nRTFFormat))
1954 cf = nRTFFormat, dwFormat = SF_RTF;
1955 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1956 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1957 else
1958 return 0;
1959
1960 if (!OpenClipboard(hWnd))
1961 return 0;
1962 gds.hData = GetClipboardData(cf);
1963 gds.nLength = 0;
1964 es.dwCookie = (DWORD)&gds;
1965 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
1966 ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es);
1967
1968 CloseClipboard();
1969 return 0;
1970 }
1971 case WM_CUT:
1972 case WM_COPY:
1973 {
1974 LPDATAOBJECT dataObj = NULL;
1975 CHARRANGE range;
1976 HRESULT hr = S_OK;
1977
1978 if (editor->cPasswordMask)
1979 return 0; /* Copying or Cutting masked text isn't allowed */
1980
1981 ME_GetSelection(editor, (int*)&range.cpMin, (int*)&range.cpMax);
1982 if(editor->lpOleCallback)
1983 hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
1984 if(FAILED(hr) || !dataObj)
1985 hr = ME_GetDataObject(editor, &range, &dataObj);
1986 if(SUCCEEDED(hr)) {
1987 hr = OleSetClipboard(dataObj);
1988 IDataObject_Release(dataObj);
1989 }
1990 if (SUCCEEDED(hr) && msg == WM_CUT)
1991 {
1992 ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
1993 ME_CommitUndo(editor);
1994 ME_UpdateRepaint(editor);
1995 }
1996 return 0;
1997 }
1998 case WM_GETTEXTLENGTH:
1999 return ME_GetTextLength(editor);
2000 case EM_GETTEXTLENGTHEX:
2001 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
2002 case WM_GETTEXT:
2003 {
2004 GETTEXTEX ex;
2005 LRESULT rc;
2006 LPSTR bufferA = NULL;
2007 LPWSTR bufferW = NULL;
2008
2009 if (unicode)
2010 bufferW = richedit_alloc((wParam + 2) * sizeof(WCHAR));
2011 else bufferA = richedit_alloc(wParam + 2);
2012
2013 ex.cb = wParam + (unicode ? 2*sizeof(WCHAR) : 2);
2014 ex.flags = GT_USECRLF;
2015 ex.codepage = unicode ? 1200 : CP_ACP;
2016 ex.lpDefaultChar = NULL;
2017 ex.lpUsedDefaultChar = NULL;
2018 rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
2019
2020 if (unicode)
2021 {
2022 memcpy((LPWSTR)lParam, bufferW, wParam);
2023 if (lstrlenW(bufferW) >= wParam / sizeof(WCHAR)) rc = 0;
2024 }
2025 else
2026 {
2027 memcpy((LPSTR)lParam, bufferA, wParam);
2028 if (strlen(bufferA) >= wParam) rc = 0;
2029 }
2030 if (bufferA != NULL) richedit_free(bufferA);
2031 if (bufferW != NULL) richedit_free(bufferW);
2032 return rc;
2033 }
2034 case EM_GETTEXTEX:
2035 {
2036 GETTEXTEX *ex = (GETTEXTEX*)wParam;
2037 int nStart, nCount;
2038
2039 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2040 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2041
2042 if (ex->flags & GT_SELECTION)
2043 {
2044 ME_GetSelection(editor, &nStart, &nCount);
2045 nCount -= nStart;
2046 nCount = min(nCount, ex->cb - 1);
2047 }
2048 else
2049 {
2050 nStart = 0;
2051 nCount = ex->cb - 1;
2052 }
2053 if (ex->codepage == 1200)
2054 {
2055 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
2056 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
2057 }
2058 else
2059 {
2060 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2061 we can just take a bigger buffer? :) */
2062 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2063 LPWSTR buffer = richedit_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
2064 DWORD buflen = ex->cb;
2065 LRESULT rc;
2066 DWORD flags = 0;
2067
2068 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
2069 rc = WideCharToMultiByte(ex->codepage, flags, buffer, -1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefaultChar);
2070 if (rc) rc--; /* do not count 0 terminator */
2071
2072 richedit_free(buffer);
2073 return rc;
2074 }
2075 }
2076 case EM_GETSELTEXT:
2077 {
2078 int from, to;
2079 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
2080 ME_GetSelection(editor, &from, &to);
2081 tr.chrg.cpMin = from;
2082 tr.chrg.cpMax = to;
2083 tr.lpstrText = (WCHAR *)lParam;
2084 return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
2085 }
2086 case EM_GETSCROLLPOS:
2087 {
2088 POINT *point = (POINT *)lParam;
2089 point->x = 0; /* FIXME side scrolling not implemented */
2090 point->y = ME_GetYScrollPos(editor);
2091 return 1;
2092 }
2093 case EM_GETTEXTRANGE:
2094 {
2095 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
2096 TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
2097 rng->chrg.cpMin, rng->chrg.cpMax, unicode,
2098 editor->bEmulateVersion10, ME_GetTextLength(editor));
2099 if (unicode)
2100 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, editor->bEmulateVersion10);
2101 else
2102 {
2103 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
2104 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
2105 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, editor->bEmulateVersion10);
2106 /* FIXME this is a potential security hole (buffer overrun)
2107 if you know more about wchar->mbyte conversion please explain
2108 */
2109 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
2110 FREE_OBJ(p);
2111 return nChars;
2112 }
2113 }
2114 case EM_GETLINE:
2115 {
2116 ME_DisplayItem *run;
2117 const unsigned int nMaxChars = *(WORD *) lParam;
2118 unsigned int nEndChars, nCharsLeft = nMaxChars;
2119 char *dest = (char *) lParam;
2120 /* rich text editor 1.0 uses \r\n for line end, 2.0 uses just \r;
2121 we need to know how if we have the extra \n or not */
2122 int nLF = editor->bEmulateVersion10;
2123
2124 TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
2125 unicode ? "Unicode" : "Ansi");
2126
2127 run = ME_FindRowWithNumber(editor, wParam);
2128 if (run == NULL)
2129 return 0;
2130
2131 while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
2132 && !(run->member.run.nFlags & MERF_ENDPARA))
2133 {
2134 unsigned int nCopy;
2135 ME_String *strText;
2136 if (run->type != diRun)
2137 break;
2138 strText = run->member.run.strText;
2139 nCopy = min(nCharsLeft, strText->nLen);
2140
2141 if (unicode)
2142 lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
2143 else
2144 nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
2145 nCharsLeft, NULL, NULL);
2146 dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
2147 nCharsLeft -= nCopy;
2148 }
2149
2150 /* append \r\0 (or \r\n\0 in 1.0), space allowing */
2151 nEndChars = min(nCharsLeft, 2 + nLF);
2152 nCharsLeft -= nEndChars;
2153 if (unicode)
2154 {
2155 const WCHAR src[] = {'\r', '\0'};
2156 const WCHAR src10[] = {'\r', '\n', '\0'};
2157 lstrcpynW((LPWSTR) dest, nLF ? src10 : src, nEndChars);
2158 }
2159 else
2160 lstrcpynA(dest, nLF ? "\r\n" : "\r", nEndChars);
2161
2162 TRACE("EM_GETLINE: got %u bytes\n", nMaxChars - nCharsLeft);
2163
2164 if (nEndChars == 2 + nLF)
2165 return nMaxChars - nCharsLeft - 1; /* don't count \0 */
2166 else
2167 return nMaxChars - nCharsLeft;
2168 }
2169 case EM_GETLINECOUNT:
2170 {
2171 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
2172 int nRows = 0;
2173
2174 while (item != editor->pBuffer->pLast)
2175 {
2176 assert(item->type == diParagraph);
2177 nRows += item->member.para.nRows;
2178 item = item->member.para.next_para;
2179 }
2180 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
2181 return max(1, nRows);
2182 }
2183 case EM_LINEFROMCHAR:
2184 {
2185 if (wParam == -1)
2186 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
2187 else
2188 return ME_RowNumberFromCharOfs(editor, wParam);
2189 }
2190 case EM_EXLINEFROMCHAR:
2191 {
2192 if (lParam == -1)
2193 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,1));
2194 else
2195 return ME_RowNumberFromCharOfs(editor, lParam);
2196 }
2197 case EM_LINEINDEX:
2198 {
2199 ME_DisplayItem *item, *para;
2200 int nCharOfs;
2201
2202 if (wParam == -1)
2203 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
2204 else
2205 item = ME_FindRowWithNumber(editor, wParam);
2206 if (!item)
2207 return -1;
2208 para = ME_GetParagraph(item);
2209 item = ME_FindItemFwd(item, diRun);
2210 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
2211 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
2212 return nCharOfs;
2213 }
2214 case EM_LINELENGTH:
2215 {
2216 ME_DisplayItem *item, *item_end;
2217 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
2218
2219 if (wParam > ME_GetTextLength(editor))
2220 return 0;
2221 if (wParam == -1)
2222 {
2223 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
2224 return 0;
2225 }
2226 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
2227 item = ME_RowStart(item);
2228 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
2229 item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
2230 if (item_end->type == diStartRow)
2231 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
2232 else
2233 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs
2234 - (editor->bEmulateVersion10?2:1);
2235 nChars = nNextLineOfs - nThisLineOfs;
2236 TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
2237 return nChars;
2238 }
2239 case EM_EXLIMITTEXT:
2240 {
2241 if ((int)lParam < 0)
2242 return 0;
2243 if (lParam == 0)
2244 editor->nTextLimit = 65536;
2245 else
2246 editor->nTextLimit = (int) lParam;
2247 return 0;
2248 }
2249 case EM_LIMITTEXT:
2250 {
2251 if (wParam == 0)
2252 editor->nTextLimit = 65536;
2253 else
2254 editor->nTextLimit = (int) wParam;
2255 return 0;
2256 }
2257 case EM_GETLIMITTEXT:
2258 {
2259 return editor->nTextLimit;
2260 }
2261 case EM_FINDTEXT:
2262 {
2263 FINDTEXTA *ft = (FINDTEXTA *)lParam;
2264 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
2265 WCHAR *tmp;
2266 LRESULT r;
2267
2268 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2269 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
2270 r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
2271 FREE_OBJ( tmp );
2272 return r;
2273 }
2274 case EM_FINDTEXTEX:
2275 {
2276 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
2277 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
2278 WCHAR *tmp;
2279 LRESULT r;
2280
2281 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
2282 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
2283 r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
2284 FREE_OBJ( tmp );
2285 return r;
2286 }
2287 case EM_FINDTEXTW:
2288 {
2289 FINDTEXTW *ft = (FINDTEXTW *)lParam;
2290 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
2291 }
2292 case EM_FINDTEXTEXW:
2293 {
2294 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
2295 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
2296 }
2297 case EM_GETZOOM:
2298 if (!wParam || !lParam)
2299 return FALSE;
2300 *(int *)wParam = editor->nZoomNumerator;
2301 *(int *)lParam = editor->nZoomDenominator;
2302 return TRUE;
2303 case EM_SETZOOM:
2304 return ME_SetZoom(editor, wParam, lParam);
2305 case EM_CHARFROMPOS:
2306 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
2307 case EM_POSFROMCHAR:
2308 {
2309 ME_DisplayItem *pRun;
2310 int nCharOfs, nOffset, nLength;
2311 POINTL pt = {0,0};
2312
2313 nCharOfs = wParam;
2314 /* detect which API version we're dealing with */
2315 if (wParam >= 0x40000)
2316 nCharOfs = lParam;
2317 nLength = ME_GetTextLength(editor);
2318
2319 if (nCharOfs < nLength) {
2320 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
2321 assert(pRun->type == diRun);
2322 pt.y = pRun->member.run.pt.y;
2323 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
2324 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
2325 } else {
2326 pt.x = 0;
2327 pt.y = editor->pBuffer->pLast->member.para.nYPos;
2328 }
2329 if (wParam >= 0x40000) {
2330 *(POINTL *)wParam = pt;
2331 }
2332 return MAKELONG( pt.x, pt.y );
2333 }
2334 case WM_CREATE:
2335 if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
2336 { /* Squelch the default horizontal scrollbar it would make */
2337 ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
2338 }
2339 ME_CommitUndo(editor);
2340 ME_WrapMarkedParagraphs(editor);
2341 ME_MoveCaret(editor);
2342 return 0;
2343 case WM_DESTROY:
2344 ME_DestroyEditor(editor);
2345 SetWindowLongPtrW(hWnd, 0, 0);
2346 return 0;
2347 case WM_LBUTTONDOWN:
2348 SetFocus(hWnd);
2349 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2350 SetCapture(hWnd);
2351 ME_LinkNotify(editor,msg,wParam,lParam);
2352 break;
2353 case WM_MOUSEMOVE:
2354 if (GetCapture() == hWnd)
2355 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
2356 ME_LinkNotify(editor,msg,wParam,lParam);
2357 break;
2358 case WM_LBUTTONUP:
2359 if (GetCapture() == hWnd)
2360 ReleaseCapture();
2361 ME_LinkNotify(editor,msg,wParam,lParam);
2362 break;
2363 case WM_LBUTTONDBLCLK:
2364 ME_LinkNotify(editor,msg,wParam,lParam);
2365 ME_SelectWord(editor);
2366 break;
2367 case WM_CONTEXTMENU:
2368 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
2369 goto do_default;
2370 break;
2371 case WM_PAINT:
2372 if (editor->bRedraw)
2373 {
2374 HDC hDC;
2375 PAINTSTRUCT ps;
2376
2377 hDC = BeginPaint(hWnd, &ps);
2378 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
2379 EndPaint(hWnd, &ps);
2380 }
2381 break;
2382 case WM_SETFOCUS:
2383 editor->bHaveFocus = TRUE;
2384 ME_ShowCaret(editor);
2385 ME_SendOldNotify(editor, EN_SETFOCUS);
2386 return 0;
2387 case WM_KILLFOCUS:
2388 ME_HideCaret(editor);
2389 editor->bHaveFocus = FALSE;
2390 ME_SendOldNotify(editor, EN_KILLFOCUS);
2391 return 0;
2392 case WM_ERASEBKGND:
2393 {
2394 if (editor->bRedraw)
2395 {
2396 HDC hDC = (HDC)wParam;
2397 RECT rc;
2398 if (GetUpdateRect(hWnd,&rc,TRUE))
2399 {
2400 FillRect(hDC, &rc, editor->hbrBackground);
2401 }
2402 }
2403 return 1;
2404 }
2405 case WM_COMMAND:
2406 TRACE("editor wnd command = %d\n", LOWORD(wParam));
2407 return 0;
2408 case WM_KEYDOWN:
2409 if (ME_KeyDown(editor, LOWORD(wParam)))
2410 return 0;
2411 goto do_default;
2412 case WM_CHAR:
2413 {
2414 WCHAR wstr;
2415
2416 if (unicode)
2417 wstr = (WCHAR)wParam;
2418 else
2419 {
2420 CHAR charA = wParam;
2421 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
2422 }
2423 if (editor->AutoURLDetect_bEnable)
2424 ME_AutoURLDetect(editor, wstr);
2425
2426 switch (wstr)
2427 {
2428 case 1: /* Ctrl-A */
2429 ME_SetSelection(editor, 0, -1);
2430 return 0;
2431 case 3: /* Ctrl-C */
2432 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
2433 return 0;
2434 }
2435
2436 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
2437 MessageBeep(MB_ICONERROR);
2438 return 0; /* FIXME really 0 ? */
2439 }
2440
2441 switch (wstr)
2442 {
2443 case 22: /* Ctrl-V */
2444 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
2445 return 0;
2446 case 24: /* Ctrl-X */
2447 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
2448 return 0;
2449 case 25: /* Ctrl-Y */
2450 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
2451 return 0;
2452 case 26: /* Ctrl-Z */
2453 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
2454 return 0;
2455 }
2456 if (((unsigned)wstr)>=' '
2457 || (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
2458 || wstr=='\t') {
2459 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2460 /* WM_CHAR is restricted to nTextLimit */
2461 int from, to;
2462 ME_GetSelection(editor, &from, &to);
2463 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2464 {
2465 ME_Style *style = ME_GetInsertStyle(editor, 0);
2466 ME_SaveTempStyle(editor);
2467 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2468 ME_ReleaseStyle(style);
2469 ME_CommitUndo(editor);
2470 }
2471 ME_UpdateRepaint(editor);
2472 }
2473 return 0;
2474 }
2475 case EM_SCROLL: /* fall through */
2476 case WM_VSCROLL:
2477 {
2478 int origNPos;
2479 int lineHeight;
2480
2481 origNPos = ME_GetYScrollPos(editor);
2482 lineHeight = 24;
2483
2484 if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
2485 lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
2486 if (lineHeight <= 0) lineHeight = 24;
2487
2488 switch(LOWORD(wParam))
2489 {
2490 case SB_LINEUP:
2491 ME_ScrollUp(editor,lineHeight);
2492 break;
2493 case SB_LINEDOWN:
2494 ME_ScrollDown(editor,lineHeight);
2495 break;
2496 case SB_PAGEUP:
2497 ME_ScrollUp(editor,editor->sizeWindow.cy);
2498 break;
2499 case SB_PAGEDOWN:
2500 ME_ScrollDown(editor,editor->sizeWindow.cy);
2501 break;
2502 case SB_THUMBTRACK:
2503 case SB_THUMBPOSITION:
2504 ME_ScrollAbs(editor,HIWORD(wParam));
2505 break;
2506 }
2507 if (msg == EM_SCROLL)
2508 return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
2509 break;
2510 }
2511 case WM_MOUSEWHEEL:
2512 {
2513 int gcWheelDelta;
2514 UINT pulScrollLines;
2515
2516 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
2517 gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
2518
2519 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
2520 {
2521 /* FIXME follow the original */
2522 ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
2523 }
2524 break;
2525 }
2526 case EM_GETRECT:
2527 {
2528 *((RECT *)lParam) = editor->rcFormat;
2529 return 0;
2530 }
2531 case EM_SETRECT:
2532 case EM_SETRECTNP:
2533 {
2534 if (lParam)
2535 {
2536 RECT *rc = (RECT *)lParam;
2537
2538 if (wParam)
2539 {
2540 editor->rcFormat.left += rc->left;
2541 editor->rcFormat.top += rc->top;
2542 editor->rcFormat.right += rc->right;
2543 editor->rcFormat.bottom += rc->bottom;
2544 }
2545 else
2546 {
2547 editor->rcFormat = *rc;
2548 }
2549 }
2550 else
2551 {
2552 GetClientRect(hWnd, &editor->rcFormat);
2553 }
2554 if (msg != EM_SETRECTNP)
2555 ME_RewrapRepaint(editor);
2556 return 0;
2557 }
2558 case EM_REQUESTRESIZE:
2559 ME_SendRequestResize(editor, TRUE);
2560 return 0;
2561 case WM_SETREDRAW:
2562 editor->bRedraw = wParam;
2563 return 0;
2564 case WM_SIZE:
2565 {
2566 GetClientRect(hWnd, &editor->rcFormat);
2567 ME_RewrapRepaint(editor);
2568 return DefWindowProcW(hWnd, msg, wParam, lParam);
2569 }
2570 /* IME messages to make richedit controls IME aware */
2571 case WM_IME_SETCONTEXT:
2572 case WM_IME_CONTROL:
2573 case WM_IME_SELECT:
2574 case WM_IME_COMPOSITIONFULL:
2575 return 0;
2576 case WM_IME_STARTCOMPOSITION:
2577 {
2578 editor->imeStartIndex=ME_GetCursorOfs(editor,0);
2579 ME_DeleteSelection(editor);
2580 ME_CommitUndo(editor);
2581 ME_UpdateRepaint(editor);
2582 return 0;
2583 }
2584 case WM_IME_COMPOSITION:
2585 {
2586 HIMC hIMC;
2587
2588 ME_Style *style = ME_GetInsertStyle(editor, 0);
2589 hIMC = ImmGetContext(hWnd);
2590 ME_DeleteSelection(editor);
2591 ME_CommitUndo(editor);
2592 ME_SaveTempStyle(editor);
2593 if (lParam & GCS_RESULTSTR)
2594 {
2595 LPWSTR lpCompStr = NULL;
2596 DWORD dwBufLen;
2597
2598 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
2599 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2600 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
2601 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2602 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2603 }
2604 else if (lParam & GCS_COMPSTR)
2605 {
2606 LPWSTR lpCompStr = NULL;
2607 DWORD dwBufLen;
2608
2609 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
2610 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
2611 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
2612 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
2613
2614 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
2615 ME_SetSelection(editor,editor->imeStartIndex,
2616 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
2617 }
2618 ME_ReleaseStyle(style);
2619 ME_UpdateRepaint(editor);
2620 return 0;
2621 }
2622 case WM_IME_ENDCOMPOSITION:
2623 {
2624 ME_DeleteSelection(editor);
2625 editor->imeStartIndex=-1;
2626 return 0;
2627 }
2628 case EM_GETOLEINTERFACE:
2629 {
2630 LPVOID *ppvObj = (LPVOID*) lParam;
2631 return CreateIRichEditOle(editor, ppvObj);
2632 }
2633 case EM_GETPASSWORDCHAR:
2634 {
2635 return editor->cPasswordMask;
2636 }
2637 case EM_SETOLECALLBACK:
2638 if(editor->lpOleCallback)
2639 IUnknown_Release(editor->lpOleCallback);
2640 editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
2641 if(editor->lpOleCallback)
2642 IUnknown_AddRef(editor->lpOleCallback);
2643 return TRUE;
2644 case EM_GETWORDBREAKPROC:
2645 return (LRESULT)editor->pfnWordBreak;
2646 case EM_SETWORDBREAKPROC:
2647 {
2648 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
2649
2650 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
2651 return (LRESULT)pfnOld;
2652 }
2653 case EM_SETTEXTMODE:
2654 {
2655 LRESULT ret;
2656 int mask = 0;
2657 int changes = 0;
2658 ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
2659 if (!ret)
2660 {
2661 /*Check for valid wParam*/
2662 if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
2663 (((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
2664 (((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
2665 return 1;
2666 else
2667 {
2668 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
2669 {
2670 mask |= (TM_RICHTEXT | TM_PLAINTEXT);
2671 changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
2672 }
2673 /*FIXME: Currently no support for undo level and code page options*/
2674 editor->mode = (editor->mode & (~mask)) | changes;
2675 return 0;
2676 }
2677 }
2678 return ret;
2679 }
2680 case EM_SETPASSWORDCHAR:
2681 {
2682 editor->cPasswordMask = wParam;
2683 ME_RewrapRepaint(editor);
2684 return 0;
2685 }
2686 default:
2687 do_default:
2688 return DefWindowProcW(hWnd, msg, wParam, lParam);
2689 }
2690 return 0L;
2691 }
2692
2693 static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2694 {
2695 BOOL unicode = TRUE;
2696
2697 /* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
2698 if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
2699 unicode = FALSE;
2700
2701 return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
2702 }
2703
2704 static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2705 {
2706 return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
2707 }
2708
2709 /******************************************************************
2710 * RichEditANSIWndProc (RICHED20.10)
2711 */
2712 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2713 {
2714 return RichEditWndProcA(hWnd, msg, wParam, lParam);
2715 }
2716
2717 /******************************************************************
2718 * RichEdit10ANSIWndProc (RICHED20.9)
2719 */
2720 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2721 {
2722 LRESULT result;
2723
2724 /* FIXME: this is NOT the same as 2.0 version */
2725 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
2726 if (msg == WM_NCCREATE)
2727 {
2728 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
2729
2730 editor->bEmulateVersion10 = TRUE;
2731 editor->pBuffer->pLast->member.para.nCharOfs = 2;
2732 }
2733 return result;
2734 }
2735
2736 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
2737 {
2738 HWND hWnd = editor->hWnd;
2739 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
2740 }
2741
2742 void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
2743 {
2744 int x,y;
2745 ME_Cursor tmpCursor;
2746 int nCharOfs; /* The start of the clicked text. Absolute character offset */
2747
2748 ME_Run *tmpRun;
2749
2750 ENLINK info;
2751 x = (short)LOWORD(lParam);
2752 y = (short)HIWORD(lParam);
2753 nCharOfs = ME_CharFromPos(editor, x, y);
2754 if (nCharOfs < 0) return;
2755
2756 ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
2757 tmpRun = &tmpCursor.pRun->member.run;
2758
2759 if ((tmpRun->style->fmt.dwMask & CFM_LINK)
2760 && (tmpRun->style->fmt.dwEffects & CFE_LINK))
2761 { /* The clicked run has CFE_LINK set */
2762 info.nmhdr.hwndFrom = editor->hWnd;
2763 info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
2764 info.nmhdr.code = EN_LINK;
2765 info.msg = msg;
2766 info.wParam = wParam;
2767 info.lParam = lParam;
2768 info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
2769 info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
2770 SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
2771 }
2772 }
2773
2774 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
2775 {
2776 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
2777 int i = 0;
2778
2779 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
2780 item = item->member.para.next_para;
2781 if (!item)
2782 return 0;
2783 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
2784 item = item->member.para.next_para;
2785 i++;
2786 }
2787 return i;
2788 }
2789
2790
2791 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
2792 {
2793 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
2794 int nWritten = 0;
2795 WCHAR *pStart = buffer;
2796
2797 if (!item) {
2798 *buffer = 0;
2799 return 0;
2800 }
2801
2802 if (nStart)
2803 {
2804 int nLen = ME_StrLen(item->member.run.strText) - nStart;
2805 if (nLen > nChars)
2806 nLen = nChars;
2807 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
2808 nChars -= nLen;
2809 nWritten += nLen;
2810 if (!nChars)
2811 return nWritten;
2812 buffer += nLen;
2813 nStart = 0;
2814 item = ME_FindItemFwd(item, diRun);
2815 }
2816
2817 while(nChars && item)
2818 {
2819 int nLen = ME_StrLen(item->member.run.strText);
2820 if (nLen > nChars)
2821 nLen = nChars;
2822
2823 if (item->member.run.nFlags & MERF_ENDPARA)
2824 {
2825 if (!ME_FindItemFwd(item, diRun))
2826 /* No '\r' is appended to the last paragraph. */
2827 nLen = 0;
2828 else if (bCRLF && nChars == 1) {
2829 nLen = 0;
2830 nChars = 0;
2831 } else {
2832 *buffer = '\r';
2833 if (bCRLF)
2834 {
2835 *(++buffer) = '\n';
2836 nWritten++;
2837 }
2838 assert(nLen == 1);
2839 /* our end paragraph consists of 2 characters now */
2840 if (editor->bEmulateVersion10)
2841 nChars--;
2842 }
2843 }
2844 else
2845 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
2846 nChars -= nLen;
2847 nWritten += nLen;
2848 buffer += nLen;
2849
2850 if (!nChars)
2851 {
2852 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2853 *buffer = 0;
2854 return nWritten;
2855 }
2856 item = ME_FindItemFwd(item, diRun);
2857 }
2858 *buffer = 0;
2859 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2860 return nWritten;
2861 }
2862
2863 static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
2864 {
2865 WNDCLASSW wcW;
2866 WNDCLASSA wcA;
2867
2868 wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2869 wcW.lpfnWndProc = RichEditWndProcW;
2870 wcW.cbClsExtra = 0;
2871 wcW.cbWndExtra = sizeof(ME_TextEditor *);
2872 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
2873 wcW.hIcon = NULL;
2874 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
2875 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2876 wcW.lpszMenuName = NULL;
2877
2878 if (is_version_nt())
2879 {
2880 wcW.lpszClassName = RichEdit20W;
2881 if (!RegisterClassW(&wcW)) return FALSE;
2882 wcW.lpszClassName = RichEdit50W;
2883 if (!RegisterClassW(&wcW)) return FALSE;
2884 }
2885 else
2886 {
2887 /* WNDCLASSA/W have the same layout */
2888 wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
2889 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2890 wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
2891 if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
2892 }
2893
2894 wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2895 wcA.lpfnWndProc = RichEditWndProcA;
2896 wcA.cbClsExtra = 0;
2897 wcA.cbWndExtra = sizeof(ME_TextEditor *);
2898 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
2899 wcA.hIcon = NULL;
2900 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
2901 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2902 wcA.lpszMenuName = NULL;
2903 wcA.lpszClassName = "RichEdit20A";
2904 if (!RegisterClassA(&wcA)) return FALSE;
2905 wcA.lpszClassName = "RichEdit50A";
2906 if (!RegisterClassA(&wcA)) return FALSE;
2907
2908 return TRUE;
2909 }
2910
2911 LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
2912 /* FIXME: Not implemented */
2913 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
2914 hWnd, msg, get_msg_name(msg), wParam, lParam);
2915 return DefWindowProcW(hWnd, msg, wParam, lParam);
2916 }
2917
2918 LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
2919 /* FIXME: Not implemented */
2920 TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
2921 hWnd, msg, get_msg_name(msg), wParam, lParam);
2922 return DefWindowProcW(hWnd, msg, wParam, lParam);
2923 }
2924
2925 /******************************************************************
2926 * REExtendedRegisterClass (RICHED20.8)
2927 *
2928 * FIXME undocumented
2929 * Need to check for errors and implement controls and callbacks
2930 */
2931 LRESULT WINAPI REExtendedRegisterClass(void)
2932 {
2933 WNDCLASSW wcW;
2934 UINT result;
2935
2936 FIXME("semi stub\n");
2937
2938 wcW.cbClsExtra = 0;
2939 wcW.cbWndExtra = 4;
2940 wcW.hInstance = NULL;
2941 wcW.hIcon = NULL;
2942 wcW.hCursor = NULL;
2943 wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
2944 wcW.lpszMenuName = NULL;
2945
2946 if (!ME_ListBoxRegistered)
2947 {
2948 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
2949 wcW.lpfnWndProc = REListWndProc;
2950 wcW.lpszClassName = REListBox20W;
2951 if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
2952 }
2953
2954 if (!ME_ComboBoxRegistered)
2955 {
2956 wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
2957 wcW.lpfnWndProc = REComboWndProc;
2958 wcW.lpszClassName = REComboBox20W;
2959 if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
2960 }
2961
2962 result = 0;
2963 if (ME_ListBoxRegistered)
2964 result += 1;
2965 if (ME_ComboBoxRegistered)
2966 result += 2;
2967
2968 return result;
2969 }
2970
2971 int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
2972 {
2973 struct prefix_s {
2974 const char *text;
2975 int length;
2976 } prefixes[12] = {
2977 {"http:", 5},
2978 {"file:", 6},
2979 {"mailto:", 8},
2980 {"ftp:", 5},
2981 {"https:", 7},
2982 {"gopher:", 8},
2983 {"nntp:", 6},
2984 {"prospero:", 10},
2985 {"telnet:", 8},
2986 {"news:", 6},
2987 {"wais:", 6},
2988 {"www.", 5}
2989 };
2990 CHARRANGE ins_pt;
2991 int curf_ef, link_ef, def_ef;
2992 int cur_prefx, prefx_cnt;
2993 int sel_min, sel_max;
2994 int car_pos = 0;
2995 int text_pos=-1;
2996 int URLmin, URLmax = 0;
2997 CHARRANGE url;
2998 FINDTEXTA ft;
2999 CHARFORMAT2W cur_format;
3000 CHARFORMAT2W default_format;
3001 CHARFORMAT2W link;
3002 RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
3003 sel_min = ins_pt.cpMin;
3004 sel_max = ins_pt.cpMax;
3005 if (sel_min==sel_max)
3006 car_pos = sel_min;
3007 if (sel_min!=sel_max)
3008 car_pos = ME_GetTextLength(editor)+1;
3009 cur_format.cbSize = sizeof(cur_format);
3010 default_format.cbSize = sizeof(default_format);
3011 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
3012 RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
3013 link.cbSize = sizeof(link);
3014 link.dwMask = CFM_LINK;
3015 link.dwEffects = CFE_LINK;
3016 curf_ef = cur_format.dwEffects & link.dwEffects;
3017 def_ef = default_format.dwEffects & link.dwEffects;
3018 link_ef = link.dwEffects & link.dwEffects;
3019 if (curf_ef == link_ef)
3020 {
3021 if( curChar == '\n' || curChar=='\r' || curChar==' ')
3022 {
3023 ME_SetSelection(editor, car_pos, car_pos);
3024 RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
3025 text_pos=-1;
3026 return 0;
3027 }
3028 }
3029 if (curf_ef == def_ef)
3030 {
3031 cur_prefx = 0;
3032 prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
3033 while (cur_prefx<=prefx_cnt)
3034 {
3035 if (text_pos == -1)
3036 {
3037 ft.lpstrText = prefixes[cur_prefx].text;
3038 URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
3039 URLmax=max(0, car_pos);
3040 if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
3041 {
3042 URLmax = ME_GetTextLength(editor)+1;
3043 }
3044 ft.chrg.cpMin = URLmin;
3045 ft.chrg.cpMax = URLmax;
3046 text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
3047 cur_prefx++;
3048 }
3049 if (text_pos != -1)
3050 {
3051 url.cpMin=text_pos;
3052 url.cpMax=car_pos-1;
3053 ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
3054 ME_RewrapRepaint(editor);
3055 break;
3056 }
3057 }
3058 }
3059 return 0;
3060 }
Work in progress by Kai Blin