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d3d10/effect: Add a helper to read raw variable values.
[wine.git] / dlls / riched20 / editor.c
blob3bf499681ed6146ef62eff22777045bb0c5780fa
1 /*
2 * RichEdit - functions dealing with editor object
3 *
4 * Copyright 2004 by Krzysztof Foltman
5 * Copyright 2005 by Cihan Altinay
6 * Copyright 2005 by Phil Krylov
7 * Copyright 2008 Eric Pouech
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 API implementation status:
26
27 Messages (ANSI versions not done yet)
28 + EM_AUTOURLDETECT 2.0
29 + EM_CANPASTE
30 + EM_CANREDO 2.0
31 + EM_CANUNDO
32 + EM_CHARFROMPOS
33 - EM_DISPLAYBAND
34 + EM_EMPTYUNDOBUFFER
35 + EM_EXGETSEL
36 + EM_EXLIMITTEXT
37 + EM_EXLINEFROMCHAR
38 + EM_EXSETSEL
39 + EM_FINDTEXT (only FR_DOWN flag implemented)
40 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_FINDWORDBREAK
42 - EM_FMTLINES
43 - EM_FORMATRANGE
44 + EM_GETAUTOURLDETECT 2.0
45 - EM_GETBIDIOPTIONS 3.0
46 - EM_GETCHARFORMAT (partly done)
47 - EM_GETEDITSTYLE
48 + EM_GETEVENTMASK
49 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
50 - EM_GETIMECOLOR 1.0asian
51 - EM_GETIMECOMPMODE 2.0
52 - EM_GETIMEOPTIONS 1.0asian
53 - EM_GETIMESTATUS
54 - EM_GETLANGOPTIONS 2.0
55 + EM_GETLIMITTEXT
56 + EM_GETLINE
57 + EM_GETLINECOUNT returns number of rows, not of paragraphs
58 + EM_GETMODIFY
59 + EM_GETOLEINTERFACE
60 + EM_GETOPTIONS
61 + EM_GETPARAFORMAT
62 + EM_GETPASSWORDCHAR 2.0
63 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETRECT
65 - EM_GETREDONAME 2.0
66 + EM_GETSEL
67 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETSCROLLPOS 3.0
69 ! - EM_GETTHUMB
70 + EM_GETTEXTEX 2.0
71 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
72 + EM_GETTEXTMODE 2.0
73 ? + EM_GETTEXTRANGE (ANSI&Unicode)
74 - EM_GETTYPOGRAPHYOPTIONS 3.0
75 - EM_GETUNDONAME
76 + EM_GETWORDBREAKPROC
77 - EM_GETWORDBREAKPROCEX
78 - EM_GETWORDWRAPMODE 1.0asian
79 + EM_GETZOOM 3.0
80 + EM_HIDESELECTION
81 + EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
82 + EM_LINEFROMCHAR
83 + EM_LINEINDEX
84 + EM_LINELENGTH
85 + EM_LINESCROLL
86 - EM_PASTESPECIAL
87 + EM_POSFROMCHAR
88 + EM_REDO 2.0
89 + EM_REQUESTRESIZE
90 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 + EM_SCROLL
92 + EM_SCROLLCARET
93 + EM_SELECTIONTYPE
94 - EM_SETBIDIOPTIONS 3.0
95 + EM_SETBKGNDCOLOR
96 + EM_SETCHARFORMAT (partly done, no ANSI)
97 - EM_SETEDITSTYLE
98 + EM_SETEVENTMASK (few notifications supported)
99 + EM_SETFONTSIZE
100 - EM_SETIMECOLOR 1.0asian
101 - EM_SETIMEOPTIONS 1.0asian
102 - EM_SETIMESTATUS
103 - EM_SETLANGOPTIONS 2.0
104 - EM_SETLIMITTEXT
105 - EM_SETMARGINS
106 + EM_SETMODIFY (not sure if implementation is correct)
107 - EM_SETOLECALLBACK
108 + EM_SETOPTIONS (partially implemented)
109 - EM_SETPALETTE 2.0
110 + EM_SETPARAFORMAT
111 + EM_SETPASSWORDCHAR 2.0
112 - EM_SETPUNCTUATION 1.0asian
113 + EM_SETREADONLY no beep on modification attempt
114 + EM_SETRECT
115 + EM_SETRECTNP (EM_SETRECT without repainting)
116 + EM_SETSEL
117 + EM_SETSCROLLPOS 3.0
118 - EM_SETTABSTOPS 3.0
119 - EM_SETTARGETDEVICE (partial)
120 + EM_SETTEXTEX 3.0 (proper style?)
121 - EM_SETTEXTMODE 2.0
122 - EM_SETTYPOGRAPHYOPTIONS 3.0
123 + EM_SETUNDOLIMIT 2.0
124 + EM_SETWORDBREAKPROC (used only for word movement at the moment)
125 - EM_SETWORDBREAKPROCEX
126 - EM_SETWORDWRAPMODE 1.0asian
127 + EM_SETZOOM 3.0
128 + EM_SHOWSCROLLBAR 2.0
129 + EM_STOPGROUPTYPING 2.0
130 + EM_STREAMIN
131 + EM_STREAMOUT
132 + EM_UNDO
133 + WM_CHAR
134 + WM_CLEAR
135 + WM_COPY
136 + WM_CUT
137 + WM_GETDLGCODE (the current implementation is incomplete)
138 + WM_GETTEXT (ANSI&Unicode)
139 + WM_GETTEXTLENGTH (ANSI version sucks)
140 + WM_HSCROLL
141 + WM_PASTE
142 + WM_SETFONT
143 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
144 + WM_STYLECHANGING (seems to do nothing)
145 + WM_STYLECHANGED (seems to do nothing)
146 + WM_UNICHAR
147 + WM_VSCROLL
148
149 Notifications
150
151 * EN_CHANGE (sent from the wrong place)
152 - EN_CORRECTTEXT
153 - EN_DROPFILES
154 - EN_ERRSPACE
155 - EN_HSCROLL
156 - EN_IMECHANGE
157 + EN_KILLFOCUS
158 - EN_LINK
159 - EN_MAXTEXT
160 - EN_MSGFILTER
161 - EN_OLEOPFAILED
162 - EN_PROTECTED
163 + EN_REQUESTRESIZE
164 - EN_SAVECLIPBOARD
165 + EN_SELCHANGE
166 + EN_SETFOCUS
167 - EN_STOPNOUNDO
168 * EN_UPDATE (sent from the wrong place)
169 - EN_VSCROLL
170
171 Styles
172
173 - ES_AUTOHSCROLL
174 - ES_AUTOVSCROLL
175 + ES_CENTER
176 + ES_DISABLENOSCROLL (scrollbar is always visible)
177 - ES_EX_NOCALLOLEINIT
178 + ES_LEFT
179 + ES_MULTILINE
180 - ES_NOIME
181 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
182 + ES_RIGHT
183 - ES_SAVESEL
184 - ES_SELFIME
185 - ES_SUNKEN
186 - ES_VERTICAL
187 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
188 - WS_SETFONT
189 + WS_HSCROLL
190 + WS_VSCROLL
191 */
192
193 /*
194 * RICHED20 TODO (incomplete):
195 *
196 * - messages/styles/notifications listed above
197 * - add remaining CHARFORMAT/PARAFORMAT fields
198 * - right/center align should strip spaces from the beginning
199 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
200 * - COM interface (looks like a major pain in the TODO list)
201 * - calculate heights of pictures (half-done)
202 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
203 * - find/replace
204 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
205 * - italic caret with italic fonts
206 * - IME
207 * - most notifications aren't sent at all (the most important ones are)
208 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
209 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
210 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
211 * - full justification
212 * - hyphenation
213 * - tables
214 * - ListBox & ComboBox not implemented
215 *
216 * Bugs that are probably fixed, but not so easy to verify:
217 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
218 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
219 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
220 * - caret shouldn't be displayed when selection isn't empty
221 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
222 * - undo for setting default format (done, might be buggy)
223 * - styles might be not released properly (looks like they work like charm, but who knows?
224 *
225 */
226
227 #define NONAMELESSUNION
228
229 #include "editor.h"
230 #include "commdlg.h"
231 #include "winreg.h"
232 #define NO_SHLWAPI_STREAM
233 #include "shlwapi.h"
234 #include "rtf.h"
235 #include "imm.h"
236 #include "res.h"
237
238 #define STACK_SIZE_DEFAULT 100
239 #define STACK_SIZE_MAX 1000
240
241 #define TEXT_LIMIT_DEFAULT 32767
242
243 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
244
245 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
246
247 HINSTANCE dll_instance = NULL;
248 BOOL me_debug = FALSE;
249
250 static ME_TextBuffer *ME_MakeText(void) {
251 ME_TextBuffer *buf = heap_alloc(sizeof(*buf));
252 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
253 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
254
255 p1->prev = NULL;
256 p1->next = p2;
257 p2->prev = p1;
258 p2->next = NULL;
259 p1->member.para.next_para = p2;
260 p2->member.para.prev_para = p1;
261 p2->member.para.nCharOfs = 0;
262
263 buf->pFirst = p1;
264 buf->pLast = p2;
265 buf->pCharStyle = NULL;
266
267 return buf;
268 }
269
270 ME_Paragraph *editor_first_para( ME_TextEditor *editor )
271 {
272 return para_next( &editor->pBuffer->pFirst->member.para );
273 }
274
275 /* Note, returns the diTextEnd sentinel paragraph */
276 ME_Paragraph *editor_end_para( ME_TextEditor *editor )
277 {
278 return &editor->pBuffer->pLast->member.para;
279 }
280
281 static BOOL editor_beep( ME_TextEditor *editor, UINT type )
282 {
283 return editor->props & TXTBIT_ALLOWBEEP && MessageBeep( type );
284 }
285
286 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
287 {
288 WCHAR *pText;
289 LRESULT total_bytes_read = 0;
290 BOOL is_read = FALSE;
291 DWORD cp = CP_ACP, copy = 0;
292 char conv_buf[4 + STREAMIN_BUFFER_SIZE]; /* up to 4 additional UTF-8 bytes */
293
294 static const char bom_utf8[] = {0xEF, 0xBB, 0xBF};
295
296 TRACE("%08x %p\n", dwFormat, stream);
297
298 do {
299 LONG nWideChars = 0;
300 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
301
302 if (!stream->dwSize)
303 {
304 ME_StreamInFill(stream);
305 if (stream->editstream->dwError)
306 break;
307 if (!stream->dwSize)
308 break;
309 total_bytes_read += stream->dwSize;
310 }
311
312 if (!(dwFormat & SF_UNICODE))
313 {
314 char * buf = stream->buffer;
315 DWORD size = stream->dwSize, end;
316
317 if (!is_read)
318 {
319 is_read = TRUE;
320 if (stream->dwSize >= 3 && !memcmp(stream->buffer, bom_utf8, 3))
321 {
322 cp = CP_UTF8;
323 buf += 3;
324 size -= 3;
325 }
326 }
327
328 if (cp == CP_UTF8)
329 {
330 if (copy)
331 {
332 memcpy(conv_buf + copy, buf, size);
333 buf = conv_buf;
334 size += copy;
335 }
336 end = size;
337 while ((buf[end-1] & 0xC0) == 0x80)
338 {
339 --end;
340 --total_bytes_read; /* strange, but seems to match windows */
341 }
342 if (buf[end-1] & 0x80)
343 {
344 DWORD need = 0;
345 if ((buf[end-1] & 0xE0) == 0xC0)
346 need = 1;
347 if ((buf[end-1] & 0xF0) == 0xE0)
348 need = 2;
349 if ((buf[end-1] & 0xF8) == 0xF0)
350 need = 3;
351
352 if (size - end >= need)
353 {
354 /* we have enough bytes for this sequence */
355 end = size;
356 }
357 else
358 {
359 /* need more bytes, so don't transcode this sequence */
360 --end;
361 }
362 }
363 }
364 else
365 end = size;
366
367 nWideChars = MultiByteToWideChar(cp, 0, buf, end, wszText, STREAMIN_BUFFER_SIZE);
368 pText = wszText;
369
370 if (cp == CP_UTF8)
371 {
372 if (end != size)
373 {
374 memcpy(conv_buf, buf + end, size - end);
375 copy = size - end;
376 }
377 }
378 }
379 else
380 {
381 nWideChars = stream->dwSize >> 1;
382 pText = (WCHAR *)stream->buffer;
383 }
384
385 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
386 if (stream->dwSize == 0)
387 break;
388 stream->dwSize = 0;
389 } while(1);
390 return total_bytes_read;
391 }
392
393 static void ME_ApplyBorderProperties(RTF_Info *info,
394 ME_BorderRect *borderRect,
395 RTFBorder *borderDef)
396 {
397 int i, colorNum;
398 ME_Border *pBorders[] = {&borderRect->top,
399 &borderRect->left,
400 &borderRect->bottom,
401 &borderRect->right};
402 for (i = 0; i < 4; i++)
403 {
404 RTFColor *colorDef = info->colorList;
405 pBorders[i]->width = borderDef[i].width;
406 colorNum = borderDef[i].color;
407 while (colorDef && colorDef->rtfCNum != colorNum)
408 colorDef = colorDef->rtfNextColor;
409 if (colorDef)
410 pBorders[i]->colorRef = RGB(
411 colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
412 colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
413 colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
414 else
415 pBorders[i]->colorRef = RGB(0, 0, 0);
416 }
417 }
418
419 void ME_RTFCharAttrHook(RTF_Info *info)
420 {
421 CHARFORMAT2W fmt;
422 fmt.cbSize = sizeof(fmt);
423 fmt.dwMask = 0;
424 fmt.dwEffects = 0;
425
426 switch(info->rtfMinor)
427 {
428 case rtfPlain:
429 /* FIXME add more flags once they're implemented */
430 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINE | CFM_UNDERLINETYPE | CFM_STRIKEOUT |
431 CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
432 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
433 fmt.yHeight = 12*20; /* 12pt */
434 fmt.wWeight = FW_NORMAL;
435 fmt.bUnderlineType = CFU_UNDERLINE;
436 break;
437 case rtfBold:
438 fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
439 fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
440 fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
441 break;
442 case rtfItalic:
443 fmt.dwMask = CFM_ITALIC;
444 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
445 break;
446 case rtfUnderline:
447 fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
448 fmt.bUnderlineType = CFU_UNDERLINE;
449 fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
450 break;
451 case rtfDotUnderline:
452 fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
453 fmt.bUnderlineType = CFU_UNDERLINEDOTTED;
454 fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
455 break;
456 case rtfDbUnderline:
457 fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
458 fmt.bUnderlineType = CFU_UNDERLINEDOUBLE;
459 fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
460 break;
461 case rtfWordUnderline:
462 fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
463 fmt.bUnderlineType = CFU_UNDERLINEWORD;
464 fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
465 break;
466 case rtfNoUnderline:
467 fmt.dwMask = CFM_UNDERLINE;
468 fmt.dwEffects = 0;
469 break;
470 case rtfStrikeThru:
471 fmt.dwMask = CFM_STRIKEOUT;
472 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
473 break;
474 case rtfSubScript:
475 case rtfSuperScript:
476 case rtfSubScrShrink:
477 case rtfSuperScrShrink:
478 case rtfNoSuperSub:
479 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
480 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
481 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
482 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
483 break;
484 case rtfInvisible:
485 fmt.dwMask = CFM_HIDDEN;
486 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
487 break;
488 case rtfBackColor:
489 fmt.dwMask = CFM_BACKCOLOR;
490 fmt.dwEffects = 0;
491 if (info->rtfParam == 0)
492 fmt.dwEffects = CFE_AUTOBACKCOLOR;
493 else if (info->rtfParam != rtfNoParam)
494 {
495 RTFColor *c = RTFGetColor(info, info->rtfParam);
496 if (c && c->rtfCBlue >= 0)
497 fmt.crBackColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
498 else
499 fmt.dwEffects = CFE_AUTOBACKCOLOR;
500 }
501 break;
502 case rtfForeColor:
503 fmt.dwMask = CFM_COLOR;
504 fmt.dwEffects = 0;
505 if (info->rtfParam == 0)
506 fmt.dwEffects = CFE_AUTOCOLOR;
507 else if (info->rtfParam != rtfNoParam)
508 {
509 RTFColor *c = RTFGetColor(info, info->rtfParam);
510 if (c && c->rtfCBlue >= 0)
511 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
512 else {
513 fmt.dwEffects = CFE_AUTOCOLOR;
514 }
515 }
516 break;
517 case rtfFontNum:
518 if (info->rtfParam != rtfNoParam)
519 {
520 RTFFont *f = RTFGetFont(info, info->rtfParam);
521 if (f)
522 {
523 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, ARRAY_SIZE(fmt.szFaceName));
524 fmt.szFaceName[ARRAY_SIZE(fmt.szFaceName)-1] = '\0';
525 fmt.bCharSet = f->rtfFCharSet;
526 fmt.dwMask = CFM_FACE | CFM_CHARSET;
527 fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
528 }
529 }
530 break;
531 case rtfFontSize:
532 fmt.dwMask = CFM_SIZE;
533 if (info->rtfParam != rtfNoParam)
534 fmt.yHeight = info->rtfParam*10;
535 break;
536 }
537 if (fmt.dwMask) {
538 ME_Style *style2;
539 RTFFlushOutputBuffer(info);
540 /* FIXME too slow ? how come ? */
541 style2 = ME_ApplyStyle(info->editor, info->style, &fmt);
542 ME_ReleaseStyle(info->style);
543 info->style = style2;
544 info->styleChanged = TRUE;
545 }
546 }
547
548 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
549 the same tags mean different things in different contexts */
550 void ME_RTFParAttrHook(RTF_Info *info)
551 {
552 switch(info->rtfMinor)
553 {
554 case rtfParDef: /* restores default paragraph attributes */
555 if (!info->editor->bEmulateVersion10) /* v4.1 */
556 info->borderType = RTFBorderParaLeft;
557 else /* v1.0 - 3.0 */
558 info->borderType = RTFBorderParaTop;
559 info->fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
560 PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
561 PFM_STARTINDENT | PFM_RTLPARA | PFM_NUMBERING | PFM_NUMBERINGSTART |
562 PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB;
563 /* TODO: shading */
564 info->fmt.wAlignment = PFA_LEFT;
565 info->fmt.cTabCount = 0;
566 info->fmt.dxOffset = info->fmt.dxStartIndent = info->fmt.dxRightIndent = 0;
567 info->fmt.wBorderWidth = info->fmt.wBorders = 0;
568 info->fmt.wBorderSpace = 0;
569 info->fmt.bLineSpacingRule = 0;
570 info->fmt.dySpaceBefore = info->fmt.dySpaceAfter = 0;
571 info->fmt.dyLineSpacing = 0;
572 info->fmt.wEffects &= ~PFE_RTLPARA;
573 info->fmt.wNumbering = 0;
574 info->fmt.wNumberingStart = 0;
575 info->fmt.wNumberingStyle = 0;
576 info->fmt.wNumberingTab = 0;
577
578 if (!info->editor->bEmulateVersion10) /* v4.1 */
579 {
580 if (info->tableDef && info->tableDef->row_start &&
581 info->tableDef->row_start->nFlags & MEPF_ROWEND)
582 {
583 ME_Cursor cursor;
584 ME_Paragraph *para;
585 /* We are just after a table row. */
586 RTFFlushOutputBuffer(info);
587 cursor = info->editor->pCursors[0];
588 para = cursor.para;
589 if (para == para_next( info->tableDef->row_start )
590 && !cursor.nOffset && !cursor.run->nCharOfs)
591 {
592 /* Since the table row end, no text has been inserted, and the \intbl
593 * control word has not be used. We can confirm that we are not in a
594 * table anymore.
595 */
596 info->tableDef->row_start = NULL;
597 info->canInheritInTbl = FALSE;
598 }
599 }
600 }
601 else /* v1.0 - v3.0 */
602 {
603 info->fmt.dwMask |= PFM_TABLE;
604 info->fmt.wEffects &= ~PFE_TABLE;
605 }
606 break;
607 case rtfNestLevel:
608 if (!info->editor->bEmulateVersion10) /* v4.1 */
609 {
610 while (info->rtfParam > info->nestingLevel)
611 {
612 RTFTable *tableDef = heap_alloc_zero(sizeof(*tableDef));
613 tableDef->parent = info->tableDef;
614 info->tableDef = tableDef;
615
616 RTFFlushOutputBuffer(info);
617 if (tableDef->row_start && tableDef->row_start->nFlags & MEPF_ROWEND)
618 {
619 ME_Paragraph *para = para_next( tableDef->row_start );
620 tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
621 }
622 else
623 {
624 ME_Cursor cursor;
625 cursor = info->editor->pCursors[0];
626 if (cursor.nOffset || cursor.run->nCharOfs)
627 ME_InsertTextFromCursor(info->editor, 0, L"\r", 1, info->style);
628 tableDef->row_start = table_insert_row_start( info->editor, info->editor->pCursors );
629 }
630
631 info->nestingLevel++;
632 }
633 info->canInheritInTbl = FALSE;
634 }
635 break;
636 case rtfInTable:
637 {
638 if (!info->editor->bEmulateVersion10) /* v4.1 */
639 {
640 if (info->nestingLevel < 1)
641 {
642 RTFTable *tableDef;
643 ME_Paragraph *para;
644
645 if (!info->tableDef)
646 info->tableDef = heap_alloc_zero(sizeof(*info->tableDef));
647 tableDef = info->tableDef;
648 RTFFlushOutputBuffer(info);
649 if (tableDef->row_start && tableDef->row_start->nFlags & MEPF_ROWEND)
650 para = para_next( tableDef->row_start );
651 else
652 para = info->editor->pCursors[0].para;
653
654 tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
655
656 info->nestingLevel = 1;
657 info->canInheritInTbl = TRUE;
658 }
659 return;
660 } else { /* v1.0 - v3.0 */
661 info->fmt.dwMask |= PFM_TABLE;
662 info->fmt.wEffects |= PFE_TABLE;
663 }
664 break;
665 }
666 case rtfFirstIndent:
667 case rtfLeftIndent:
668 if ((info->fmt.dwMask & (PFM_STARTINDENT | PFM_OFFSET)) != (PFM_STARTINDENT | PFM_OFFSET))
669 {
670 PARAFORMAT2 fmt;
671 fmt.cbSize = sizeof(fmt);
672 editor_get_selection_para_fmt( info->editor, &fmt );
673 info->fmt.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
674 info->fmt.dxStartIndent = fmt.dxStartIndent;
675 info->fmt.dxOffset = fmt.dxOffset;
676 }
677 if (info->rtfMinor == rtfFirstIndent)
678 {
679 info->fmt.dxStartIndent += info->fmt.dxOffset + info->rtfParam;
680 info->fmt.dxOffset = -info->rtfParam;
681 }
682 else
683 info->fmt.dxStartIndent = info->rtfParam - info->fmt.dxOffset;
684 break;
685 case rtfRightIndent:
686 info->fmt.dwMask |= PFM_RIGHTINDENT;
687 info->fmt.dxRightIndent = info->rtfParam;
688 break;
689 case rtfQuadLeft:
690 case rtfQuadJust:
691 info->fmt.dwMask |= PFM_ALIGNMENT;
692 info->fmt.wAlignment = PFA_LEFT;
693 break;
694 case rtfQuadRight:
695 info->fmt.dwMask |= PFM_ALIGNMENT;
696 info->fmt.wAlignment = PFA_RIGHT;
697 break;
698 case rtfQuadCenter:
699 info->fmt.dwMask |= PFM_ALIGNMENT;
700 info->fmt.wAlignment = PFA_CENTER;
701 break;
702 case rtfTabPos:
703 if (!(info->fmt.dwMask & PFM_TABSTOPS))
704 {
705 PARAFORMAT2 fmt;
706 fmt.cbSize = sizeof(fmt);
707 editor_get_selection_para_fmt( info->editor, &fmt );
708 memcpy(info->fmt.rgxTabs, fmt.rgxTabs,
709 fmt.cTabCount * sizeof(fmt.rgxTabs[0]));
710 info->fmt.cTabCount = fmt.cTabCount;
711 info->fmt.dwMask |= PFM_TABSTOPS;
712 }
713 if (info->fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
714 info->fmt.rgxTabs[info->fmt.cTabCount++] = info->rtfParam;
715 break;
716 case rtfKeep:
717 info->fmt.dwMask |= PFM_KEEP;
718 info->fmt.wEffects |= PFE_KEEP;
719 break;
720 case rtfNoWidowControl:
721 info->fmt.dwMask |= PFM_NOWIDOWCONTROL;
722 info->fmt.wEffects |= PFE_NOWIDOWCONTROL;
723 break;
724 case rtfKeepNext:
725 info->fmt.dwMask |= PFM_KEEPNEXT;
726 info->fmt.wEffects |= PFE_KEEPNEXT;
727 break;
728 case rtfSpaceAfter:
729 info->fmt.dwMask |= PFM_SPACEAFTER;
730 info->fmt.dySpaceAfter = info->rtfParam;
731 break;
732 case rtfSpaceBefore:
733 info->fmt.dwMask |= PFM_SPACEBEFORE;
734 info->fmt.dySpaceBefore = info->rtfParam;
735 break;
736 case rtfSpaceBetween:
737 info->fmt.dwMask |= PFM_LINESPACING;
738 if ((int)info->rtfParam > 0)
739 {
740 info->fmt.dyLineSpacing = info->rtfParam;
741 info->fmt.bLineSpacingRule = 3;
742 }
743 else
744 {
745 info->fmt.dyLineSpacing = info->rtfParam;
746 info->fmt.bLineSpacingRule = 4;
747 }
748 break;
749 case rtfSpaceMultiply:
750 info->fmt.dwMask |= PFM_LINESPACING;
751 info->fmt.dyLineSpacing = info->rtfParam * 20;
752 info->fmt.bLineSpacingRule = 5;
753 break;
754 case rtfParBullet:
755 info->fmt.dwMask |= PFM_NUMBERING;
756 info->fmt.wNumbering = PFN_BULLET;
757 break;
758 case rtfParSimple:
759 info->fmt.dwMask |= PFM_NUMBERING;
760 info->fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
761 break;
762 case rtfBorderLeft:
763 info->borderType = RTFBorderParaLeft;
764 info->fmt.wBorders |= 1;
765 info->fmt.dwMask |= PFM_BORDER;
766 break;
767 case rtfBorderRight:
768 info->borderType = RTFBorderParaRight;
769 info->fmt.wBorders |= 2;
770 info->fmt.dwMask |= PFM_BORDER;
771 break;
772 case rtfBorderTop:
773 info->borderType = RTFBorderParaTop;
774 info->fmt.wBorders |= 4;
775 info->fmt.dwMask |= PFM_BORDER;
776 break;
777 case rtfBorderBottom:
778 info->borderType = RTFBorderParaBottom;
779 info->fmt.wBorders |= 8;
780 info->fmt.dwMask |= PFM_BORDER;
781 break;
782 case rtfBorderSingle:
783 info->fmt.wBorders &= ~0x700;
784 info->fmt.wBorders |= 1 << 8;
785 info->fmt.dwMask |= PFM_BORDER;
786 break;
787 case rtfBorderThick:
788 info->fmt.wBorders &= ~0x700;
789 info->fmt.wBorders |= 2 << 8;
790 info->fmt.dwMask |= PFM_BORDER;
791 break;
792 case rtfBorderShadow:
793 info->fmt.wBorders &= ~0x700;
794 info->fmt.wBorders |= 10 << 8;
795 info->fmt.dwMask |= PFM_BORDER;
796 break;
797 case rtfBorderDouble:
798 info->fmt.wBorders &= ~0x700;
799 info->fmt.wBorders |= 7 << 8;
800 info->fmt.dwMask |= PFM_BORDER;
801 break;
802 case rtfBorderDot:
803 info->fmt.wBorders &= ~0x700;
804 info->fmt.wBorders |= 11 << 8;
805 info->fmt.dwMask |= PFM_BORDER;
806 break;
807 case rtfBorderWidth:
808 {
809 int borderSide = info->borderType & RTFBorderSideMask;
810 RTFTable *tableDef = info->tableDef;
811 if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
812 {
813 RTFBorder *border;
814 if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
815 break;
816 border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
817 border->width = info->rtfParam;
818 break;
819 }
820 info->fmt.wBorderWidth = info->rtfParam;
821 info->fmt.dwMask |= PFM_BORDER;
822 break;
823 }
824 case rtfBorderSpace:
825 info->fmt.wBorderSpace = info->rtfParam;
826 info->fmt.dwMask |= PFM_BORDER;
827 break;
828 case rtfBorderColor:
829 {
830 RTFTable *tableDef = info->tableDef;
831 int borderSide = info->borderType & RTFBorderSideMask;
832 int borderType = info->borderType & RTFBorderTypeMask;
833 switch(borderType)
834 {
835 case RTFBorderTypePara:
836 if (!info->editor->bEmulateVersion10) /* v4.1 */
837 break;
838 /* v1.0 - 3.0 treat paragraph and row borders the same. */
839 case RTFBorderTypeRow:
840 if (tableDef) {
841 tableDef->border[borderSide].color = info->rtfParam;
842 }
843 break;
844 case RTFBorderTypeCell:
845 if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
846 tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
847 }
848 break;
849 }
850 break;
851 }
852 case rtfRTLPar:
853 info->fmt.dwMask |= PFM_RTLPARA;
854 info->fmt.wEffects |= PFE_RTLPARA;
855 break;
856 case rtfLTRPar:
857 info->fmt.dwMask |= PFM_RTLPARA;
858 info->fmt.wEffects &= ~PFE_RTLPARA;
859 break;
860 }
861 }
862
863 void ME_RTFTblAttrHook(RTF_Info *info)
864 {
865 switch (info->rtfMinor)
866 {
867 case rtfRowDef:
868 {
869 if (!info->editor->bEmulateVersion10) /* v4.1 */
870 info->borderType = 0; /* Not sure */
871 else /* v1.0 - 3.0 */
872 info->borderType = RTFBorderRowTop;
873 if (!info->tableDef) {
874 info->tableDef = ME_MakeTableDef(info->editor);
875 } else {
876 ME_InitTableDef(info->editor, info->tableDef);
877 }
878 break;
879 }
880 case rtfCellPos:
881 {
882 int cellNum;
883 if (!info->tableDef)
884 {
885 info->tableDef = ME_MakeTableDef(info->editor);
886 }
887 cellNum = info->tableDef->numCellsDefined;
888 if (cellNum >= MAX_TABLE_CELLS)
889 break;
890 info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
891 if (cellNum < MAX_TAB_STOPS)
892 {
893 /* Tab stops were used to store cell positions before v4.1 but v4.1
894 * still seems to set the tabstops without using them. */
895 PARAFORMAT2 *fmt = &info->editor->pCursors[0].para->fmt;
896 fmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
897 fmt->rgxTabs[cellNum] |= 0x00FFFFFF & info->rtfParam;
898 }
899 info->tableDef->numCellsDefined++;
900 break;
901 }
902 case rtfRowBordTop:
903 info->borderType = RTFBorderRowTop;
904 break;
905 case rtfRowBordLeft:
906 info->borderType = RTFBorderRowLeft;
907 break;
908 case rtfRowBordBottom:
909 info->borderType = RTFBorderRowBottom;
910 break;
911 case rtfRowBordRight:
912 info->borderType = RTFBorderRowRight;
913 break;
914 case rtfCellBordTop:
915 info->borderType = RTFBorderCellTop;
916 break;
917 case rtfCellBordLeft:
918 info->borderType = RTFBorderCellLeft;
919 break;
920 case rtfCellBordBottom:
921 info->borderType = RTFBorderCellBottom;
922 break;
923 case rtfCellBordRight:
924 info->borderType = RTFBorderCellRight;
925 break;
926 case rtfRowGapH:
927 if (info->tableDef)
928 info->tableDef->gapH = info->rtfParam;
929 break;
930 case rtfRowLeftEdge:
931 if (info->tableDef)
932 info->tableDef->leftEdge = info->rtfParam;
933 break;
934 }
935 }
936
937 void ME_RTFSpecialCharHook(RTF_Info *info)
938 {
939 RTFTable *tableDef = info->tableDef;
940 switch (info->rtfMinor)
941 {
942 case rtfNestCell:
943 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
944 break;
945 /* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
946 case rtfCell:
947 if (!tableDef)
948 break;
949 RTFFlushOutputBuffer(info);
950 if (!info->editor->bEmulateVersion10) /* v4.1 */
951 {
952 if (tableDef->row_start)
953 {
954 if (!info->nestingLevel && tableDef->row_start->nFlags & MEPF_ROWEND)
955 {
956 ME_Paragraph *para = para_next( tableDef->row_start );
957 tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
958 info->nestingLevel = 1;
959 }
960 table_insert_cell( info->editor, info->editor->pCursors );
961 }
962 }
963 else /* v1.0 - v3.0 */
964 {
965 ME_Paragraph *para = info->editor->pCursors[0].para;
966
967 if (para_in_table( para ) && tableDef->numCellsInserted < tableDef->numCellsDefined)
968 {
969 WCHAR tab = '\t';
970 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
971 tableDef->numCellsInserted++;
972 }
973 }
974 break;
975 case rtfNestRow:
976 if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
977 break;
978 /* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
979 case rtfRow:
980 {
981 ME_Run *run;
982 ME_Paragraph *para;
983 ME_Cell *cell;
984 int i;
985
986 if (!tableDef)
987 break;
988 RTFFlushOutputBuffer(info);
989 if (!info->editor->bEmulateVersion10) /* v4.1 */
990 {
991 if (!tableDef->row_start) break;
992 if (!info->nestingLevel && tableDef->row_start->nFlags & MEPF_ROWEND)
993 {
994 para = para_next( tableDef->row_start );
995 tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
996 info->nestingLevel++;
997 }
998 para = tableDef->row_start;
999 cell = table_row_first_cell( para );
1000 assert( cell && !cell_prev( cell ) );
1001 if (tableDef->numCellsDefined < 1)
1002 {
1003 /* 2000 twips appears to be the cell size that native richedit uses
1004 * when no cell sizes are specified. */
1005 const int default_size = 2000;
1006 int right_boundary = default_size;
1007 cell->nRightBoundary = right_boundary;
1008 while (cell_next( cell ))
1009 {
1010 cell = cell_next( cell );
1011 right_boundary += default_size;
1012 cell->nRightBoundary = right_boundary;
1013 }
1014 para = table_insert_cell( info->editor, info->editor->pCursors );
1015 cell = para_cell( para );
1016 cell->nRightBoundary = right_boundary;
1017 }
1018 else
1019 {
1020 for (i = 0; i < tableDef->numCellsDefined; i++)
1021 {
1022 RTFCell *cellDef = &tableDef->cells[i];
1023 cell->nRightBoundary = cellDef->rightBoundary;
1024 ME_ApplyBorderProperties( info, &cell->border, cellDef->border );
1025 cell = cell_next( cell );
1026 if (!cell)
1027 {
1028 para = table_insert_cell( info->editor, info->editor->pCursors );
1029 cell = para_cell( para );
1030 }
1031 }
1032 /* Cell for table row delimiter is empty */
1033 cell->nRightBoundary = tableDef->cells[i - 1].rightBoundary;
1034 }
1035
1036 run = para_first_run( cell_first_para( cell ) );
1037 if (info->editor->pCursors[0].run != run || info->editor->pCursors[0].nOffset)
1038 {
1039 int nOfs, nChars;
1040 /* Delete inserted cells that aren't defined. */
1041 info->editor->pCursors[1].run = run;
1042 info->editor->pCursors[1].para = run->para;
1043 info->editor->pCursors[1].nOffset = 0;
1044 nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
1045 nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
1046 ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
1047 nChars, TRUE);
1048 }
1049
1050 para = table_insert_row_end( info->editor, info->editor->pCursors );
1051 para->fmt.dxOffset = abs(info->tableDef->gapH);
1052 para->fmt.dxStartIndent = info->tableDef->leftEdge;
1053 ME_ApplyBorderProperties( info, &para->border, tableDef->border );
1054 info->nestingLevel--;
1055 if (!info->nestingLevel)
1056 {
1057 if (info->canInheritInTbl) tableDef->row_start = para;
1058 else
1059 {
1060 while (info->tableDef)
1061 {
1062 tableDef = info->tableDef;
1063 info->tableDef = tableDef->parent;
1064 heap_free(tableDef);
1065 }
1066 }
1067 }
1068 else
1069 {
1070 info->tableDef = tableDef->parent;
1071 heap_free(tableDef);
1072 }
1073 }
1074 else /* v1.0 - v3.0 */
1075 {
1076 para = info->editor->pCursors[0].para;
1077 para->fmt.dxOffset = info->tableDef->gapH;
1078 para->fmt.dxStartIndent = info->tableDef->leftEdge;
1079
1080 ME_ApplyBorderProperties( info, &para->border, tableDef->border );
1081 while (tableDef->numCellsInserted < tableDef->numCellsDefined)
1082 {
1083 WCHAR tab = '\t';
1084 ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
1085 tableDef->numCellsInserted++;
1086 }
1087 para->fmt.cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
1088 if (!tableDef->numCellsDefined) para->fmt.wEffects &= ~PFE_TABLE;
1089 ME_InsertTextFromCursor(info->editor, 0, L"\r", 1, info->style);
1090 tableDef->numCellsInserted = 0;
1091 }
1092 break;
1093 }
1094 case rtfTab:
1095 case rtfPar:
1096 if (info->editor->bEmulateVersion10) /* v1.0 - 3.0 */
1097 {
1098 ME_Paragraph *para;
1099
1100 RTFFlushOutputBuffer(info);
1101 para = info->editor->pCursors[0].para;
1102 if (para_in_table( para ))
1103 {
1104 /* rtfPar is treated like a space within a table. */
1105 info->rtfClass = rtfText;
1106 info->rtfMajor = ' ';
1107 }
1108 else if (info->rtfMinor == rtfPar && tableDef)
1109 tableDef->numCellsInserted = 0;
1110 }
1111 break;
1112 }
1113 }
1114
1115 static HRESULT insert_static_object(ME_TextEditor *editor, HENHMETAFILE hemf, HBITMAP hbmp,
1116 const SIZEL* sz)
1117 {
1118 LPOLEOBJECT lpObject = NULL;
1119 LPSTORAGE lpStorage = NULL;
1120 LPOLECLIENTSITE lpClientSite = NULL;
1121 LPDATAOBJECT lpDataObject = NULL;
1122 LPOLECACHE lpOleCache = NULL;
1123 STGMEDIUM stgm;
1124 FORMATETC fm;
1125 CLSID clsid;
1126 HRESULT hr = E_FAIL;
1127 DWORD conn;
1128
1129 if (hemf)
1130 {
1131 stgm.tymed = TYMED_ENHMF;
1132 stgm.u.hEnhMetaFile = hemf;
1133 fm.cfFormat = CF_ENHMETAFILE;
1134 }
1135 else if (hbmp)
1136 {
1137 stgm.tymed = TYMED_GDI;
1138 stgm.u.hBitmap = hbmp;
1139 fm.cfFormat = CF_BITMAP;
1140 }
1141 else return E_FAIL;
1142
1143 stgm.pUnkForRelease = NULL;
1144
1145 fm.ptd = NULL;
1146 fm.dwAspect = DVASPECT_CONTENT;
1147 fm.lindex = -1;
1148 fm.tymed = stgm.tymed;
1149
1150 if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
1151 IRichEditOle_GetClientSite(editor->richole, &lpClientSite) == S_OK &&
1152 IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
1153 IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
1154 IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
1155 IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
1156 IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
1157 IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
1158 {
1159 REOBJECT reobject;
1160
1161 reobject.cbStruct = sizeof(reobject);
1162 reobject.cp = REO_CP_SELECTION;
1163 reobject.clsid = clsid;
1164 reobject.poleobj = lpObject;
1165 reobject.pstg = lpStorage;
1166 reobject.polesite = lpClientSite;
1167 /* convert from twips to .01 mm */
1168 reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
1169 reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
1170 reobject.dvaspect = DVASPECT_CONTENT;
1171 reobject.dwFlags = 0; /* FIXME */
1172 reobject.dwUser = 0;
1173
1174 editor_insert_oleobj(editor, &reobject);
1175 hr = S_OK;
1176 }
1177
1178 if (lpObject) IOleObject_Release(lpObject);
1179 if (lpClientSite) IOleClientSite_Release(lpClientSite);
1180 if (lpStorage) IStorage_Release(lpStorage);
1181 if (lpDataObject) IDataObject_Release(lpDataObject);
1182 if (lpOleCache) IOleCache_Release(lpOleCache);
1183
1184 return hr;
1185 }
1186
1187 static void ME_RTFReadShpPictGroup( RTF_Info *info )
1188 {
1189 int level = 1;
1190
1191 for (;;)
1192 {
1193 RTFGetToken (info);
1194
1195 if (info->rtfClass == rtfEOF) return;
1196 if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
1197 {
1198 if (--level == 0) break;
1199 }
1200 else if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
1201 {
1202 level++;
1203 }
1204 else
1205 {
1206 RTFRouteToken( info );
1207 if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
1208 level--;
1209 }
1210 }
1211
1212 RTFRouteToken( info ); /* feed "}" back to router */
1213 return;
1214 }
1215
1216 static DWORD read_hex_data( RTF_Info *info, BYTE **out )
1217 {
1218 DWORD read = 0, size = 1024;
1219 BYTE *buf, val;
1220 BOOL flip;
1221
1222 *out = NULL;
1223
1224 if (info->rtfClass != rtfText)
1225 {
1226 ERR("Called with incorrect token\n");
1227 return 0;
1228 }
1229
1230 buf = HeapAlloc( GetProcessHeap(), 0, size );
1231 if (!buf) return 0;
1232
1233 val = info->rtfMajor;
1234 for (flip = TRUE;; flip = !flip)
1235 {
1236 RTFGetToken( info );
1237 if (info->rtfClass == rtfEOF)
1238 {
1239 HeapFree( GetProcessHeap(), 0, buf );
1240 return 0;
1241 }
1242 if (info->rtfClass != rtfText) break;
1243 if (flip)
1244 {
1245 if (read >= size)
1246 {
1247 size *= 2;
1248 buf = HeapReAlloc( GetProcessHeap(), 0, buf, size );
1249 if (!buf) return 0;
1250 }
1251 buf[read++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
1252 }
1253 else
1254 val = info->rtfMajor;
1255 }
1256 if (flip) FIXME("wrong hex string\n");
1257
1258 *out = buf;
1259 return read;
1260 }
1261
1262 static void ME_RTFReadPictGroup(RTF_Info *info)
1263 {
1264 SIZEL sz;
1265 BYTE *buffer = NULL;
1266 DWORD size = 0;
1267 METAFILEPICT mfp;
1268 HENHMETAFILE hemf;
1269 HBITMAP hbmp;
1270 enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
1271 int level = 1;
1272
1273 mfp.mm = MM_TEXT;
1274 sz.cx = sz.cy = 0;
1275
1276 for (;;)
1277 {
1278 RTFGetToken( info );
1279
1280 if (info->rtfClass == rtfText)
1281 {
1282 if (level == 1)
1283 {
1284 if (!buffer)
1285 size = read_hex_data( info, &buffer );
1286 }
1287 else
1288 {
1289 RTFSkipGroup( info );
1290 }
1291 } /* We potentially have a new token so fall through. */
1292
1293 if (info->rtfClass == rtfEOF) return;
1294
1295 if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
1296 {
1297 if (--level == 0) break;
1298 continue;
1299 }
1300 if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
1301 {
1302 level++;
1303 continue;
1304 }
1305 if (!RTFCheckCM( info, rtfControl, rtfPictAttr ))
1306 {
1307 RTFRouteToken( info );
1308 if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
1309 level--;
1310 continue;
1311 }
1312
1313 if (RTFCheckMM( info, rtfPictAttr, rtfWinMetafile ))
1314 {
1315 mfp.mm = info->rtfParam;
1316 gfx = gfx_metafile;
1317 }
1318 else if (RTFCheckMM( info, rtfPictAttr, rtfDevIndBitmap ))
1319 {
1320 if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
1321 gfx = gfx_dib;
1322 }
1323 else if (RTFCheckMM( info, rtfPictAttr, rtfEmfBlip ))
1324 gfx = gfx_enhmetafile;
1325 else if (RTFCheckMM( info, rtfPictAttr, rtfPicWid ))
1326 mfp.xExt = info->rtfParam;
1327 else if (RTFCheckMM( info, rtfPictAttr, rtfPicHt ))
1328 mfp.yExt = info->rtfParam;
1329 else if (RTFCheckMM( info, rtfPictAttr, rtfPicGoalWid ))
1330 sz.cx = info->rtfParam;
1331 else if (RTFCheckMM( info, rtfPictAttr, rtfPicGoalHt ))
1332 sz.cy = info->rtfParam;
1333 else
1334 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1335 }
1336
1337 if (buffer)
1338 {
1339 switch (gfx)
1340 {
1341 case gfx_enhmetafile:
1342 if ((hemf = SetEnhMetaFileBits( size, buffer )))
1343 insert_static_object( info->editor, hemf, NULL, &sz );
1344 break;
1345 case gfx_metafile:
1346 if ((hemf = SetWinMetaFileBits( size, buffer, NULL, &mfp )))
1347 insert_static_object( info->editor, hemf, NULL, &sz );
1348 break;
1349 case gfx_dib:
1350 {
1351 BITMAPINFO *bi = (BITMAPINFO*)buffer;
1352 HDC hdc = GetDC(0);
1353 unsigned nc = bi->bmiHeader.biClrUsed;
1354
1355 /* not quite right, especially for bitfields type of compression */
1356 if (!nc && bi->bmiHeader.biBitCount <= 8)
1357 nc = 1 << bi->bmiHeader.biBitCount;
1358 if ((hbmp = CreateDIBitmap( hdc, &bi->bmiHeader,
1359 CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
1360 bi, DIB_RGB_COLORS)) )
1361 insert_static_object( info->editor, NULL, hbmp, &sz );
1362 ReleaseDC( 0, hdc );
1363 break;
1364 }
1365 default:
1366 break;
1367 }
1368 }
1369 HeapFree( GetProcessHeap(), 0, buffer );
1370 RTFRouteToken( info ); /* feed "}" back to router */
1371 return;
1372 }
1373
1374 /* for now, lookup the \result part and use it, whatever the object */
1375 static void ME_RTFReadObjectGroup(RTF_Info *info)
1376 {
1377 for (;;)
1378 {
1379 RTFGetToken (info);
1380 if (info->rtfClass == rtfEOF)
1381 return;
1382 if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
1383 break;
1384 if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
1385 {
1386 RTFGetToken (info);
1387 if (info->rtfClass == rtfEOF)
1388 return;
1389 if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
1390 {
1391 int level = 1;
1392
1393 while (RTFGetToken (info) != rtfEOF)
1394 {
1395 if (info->rtfClass == rtfGroup)
1396 {
1397 if (info->rtfMajor == rtfBeginGroup) level++;
1398 else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
1399 }
1400 RTFRouteToken(info);
1401 }
1402 }
1403 else RTFSkipGroup(info);
1404 continue;
1405 }
1406 if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
1407 {
1408 FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
1409 return;
1410 }
1411 }
1412 RTFRouteToken(info); /* feed "}" back to router */
1413 }
1414
1415 static void ME_RTFReadParnumGroup( RTF_Info *info )
1416 {
1417 int level = 1, type = -1;
1418 WORD indent = 0, start = 1;
1419 WCHAR txt_before = 0, txt_after = 0;
1420
1421 for (;;)
1422 {
1423 RTFGetToken( info );
1424
1425 if (RTFCheckCMM( info, rtfControl, rtfDestination, rtfParNumTextBefore ) ||
1426 RTFCheckCMM( info, rtfControl, rtfDestination, rtfParNumTextAfter ))
1427 {
1428 int loc = info->rtfMinor;
1429
1430 RTFGetToken( info );
1431 if (info->rtfClass == rtfText)
1432 {
1433 if (loc == rtfParNumTextBefore)
1434 txt_before = info->rtfMajor;
1435 else
1436 txt_after = info->rtfMajor;
1437 continue;
1438 }
1439 /* falling through to catch EOFs and group level changes */
1440 }
1441
1442 if (info->rtfClass == rtfEOF)
1443 return;
1444
1445 if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
1446 {
1447 if (--level == 0) break;
1448 continue;
1449 }
1450
1451 if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
1452 {
1453 level++;
1454 continue;
1455 }
1456
1457 /* Ignore non para-attr */
1458 if (!RTFCheckCM( info, rtfControl, rtfParAttr ))
1459 continue;
1460
1461 switch (info->rtfMinor)
1462 {
1463 case rtfParLevel: /* Para level is ignored */
1464 case rtfParSimple:
1465 break;
1466 case rtfParBullet:
1467 type = PFN_BULLET;
1468 break;
1469
1470 case rtfParNumDecimal:
1471 type = PFN_ARABIC;
1472 break;
1473 case rtfParNumULetter:
1474 type = PFN_UCLETTER;
1475 break;
1476 case rtfParNumURoman:
1477 type = PFN_UCROMAN;
1478 break;
1479 case rtfParNumLLetter:
1480 type = PFN_LCLETTER;
1481 break;
1482 case rtfParNumLRoman:
1483 type = PFN_LCROMAN;
1484 break;
1485
1486 case rtfParNumIndent:
1487 indent = info->rtfParam;
1488 break;
1489 case rtfParNumStartAt:
1490 start = info->rtfParam;
1491 break;
1492 }
1493 }
1494
1495 if (type != -1)
1496 {
1497 info->fmt.dwMask |= (PFM_NUMBERING | PFM_NUMBERINGSTART | PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB);
1498 info->fmt.wNumbering = type;
1499 info->fmt.wNumberingStart = start;
1500 info->fmt.wNumberingStyle = PFNS_PAREN;
1501 if (type != PFN_BULLET)
1502 {
1503 if (txt_before == 0 && txt_after == 0)
1504 info->fmt.wNumberingStyle = PFNS_PLAIN;
1505 else if (txt_after == '.')
1506 info->fmt.wNumberingStyle = PFNS_PERIOD;
1507 else if (txt_before == '(' && txt_after == ')')
1508 info->fmt.wNumberingStyle = PFNS_PARENS;
1509 }
1510 info->fmt.wNumberingTab = indent;
1511 }
1512
1513 TRACE("type %d indent %d start %d txt before %04x txt after %04x\n",
1514 type, indent, start, txt_before, txt_after);
1515
1516 RTFRouteToken( info ); /* feed "}" back to router */
1517 }
1518
1519 static void ME_RTFReadHook(RTF_Info *info)
1520 {
1521 switch(info->rtfClass)
1522 {
1523 case rtfGroup:
1524 switch(info->rtfMajor)
1525 {
1526 case rtfBeginGroup:
1527 if (info->stackTop < maxStack) {
1528 info->stack[info->stackTop].style = info->style;
1529 ME_AddRefStyle(info->style);
1530 info->stack[info->stackTop].codePage = info->codePage;
1531 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
1532 }
1533 info->stackTop++;
1534 info->styleChanged = FALSE;
1535 break;
1536 case rtfEndGroup:
1537 {
1538 RTFFlushOutputBuffer(info);
1539 info->stackTop--;
1540 if (info->stackTop <= 0)
1541 info->rtfClass = rtfEOF;
1542 if (info->stackTop < 0)
1543 return;
1544
1545 ME_ReleaseStyle(info->style);
1546 info->style = info->stack[info->stackTop].style;
1547 info->codePage = info->stack[info->stackTop].codePage;
1548 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
1549 break;
1550 }
1551 }
1552 break;
1553 }
1554 }
1555
1556 void
1557 ME_StreamInFill(ME_InStream *stream)
1558 {
1559 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
1560 (BYTE *)stream->buffer,
1561 sizeof(stream->buffer),
1562 (LONG *)&stream->dwSize);
1563 stream->dwUsed = 0;
1564 }
1565
1566 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
1567 {
1568 RTF_Info parser;
1569 ME_Style *style;
1570 int from, to, nUndoMode;
1571 int nEventMask = editor->nEventMask;
1572 ME_InStream inStream;
1573 BOOL invalidRTF = FALSE;
1574 ME_Cursor *selStart, *selEnd;
1575 LRESULT num_read = 0; /* bytes read for SF_TEXT, non-control chars inserted for SF_RTF */
1576
1577 TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
1578 editor->nEventMask = 0;
1579
1580 ME_GetSelectionOfs(editor, &from, &to);
1581 if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
1582 {
1583 ME_GetSelection(editor, &selStart, &selEnd);
1584 style = ME_GetSelectionInsertStyle(editor);
1585
1586 ME_InternalDeleteText(editor, selStart, to - from, FALSE);
1587
1588 /* Don't insert text at the end of the table row */
1589 if (!editor->bEmulateVersion10) /* v4.1 */
1590 {
1591 ME_Paragraph *para = editor->pCursors->para;
1592 if (para->nFlags & (MEPF_ROWSTART | MEPF_ROWEND))
1593 {
1594 para = para_next( para );
1595 editor->pCursors[0].para = para;
1596 editor->pCursors[0].run = para_first_run( para );
1597 editor->pCursors[0].nOffset = 0;
1598 }
1599 editor->pCursors[1] = editor->pCursors[0];
1600 }
1601 else /* v1.0 - 3.0 */
1602 {
1603 if (editor->pCursors[0].run->nFlags & MERF_ENDPARA &&
1604 para_in_table( editor->pCursors[0].para ))
1605 return 0;
1606 }
1607 }
1608 else
1609 {
1610 style = editor->pBuffer->pDefaultStyle;
1611 ME_AddRefStyle(style);
1612 set_selection_cursors(editor, 0, 0);
1613 ME_InternalDeleteText(editor, &editor->pCursors[1],
1614 ME_GetTextLength(editor), FALSE);
1615 from = to = 0;
1616 ME_ClearTempStyle(editor);
1617 editor_set_default_para_fmt( editor, &editor->pCursors[0].para->fmt );
1618 }
1619
1620
1621 /* Back up undo mode to a local variable */
1622 nUndoMode = editor->nUndoMode;
1623
1624 /* Only create an undo if SFF_SELECTION is set */
1625 if (!(format & SFF_SELECTION))
1626 editor->nUndoMode = umIgnore;
1627
1628 inStream.editstream = stream;
1629 inStream.editstream->dwError = 0;
1630 inStream.dwSize = 0;
1631 inStream.dwUsed = 0;
1632
1633 if (format & SF_RTF)
1634 {
1635 /* Check if it's really RTF, and if it is not, use plain text */
1636 ME_StreamInFill(&inStream);
1637 if (!inStream.editstream->dwError)
1638 {
1639 if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
1640 || (editor->bEmulateVersion10 && *inStream.buffer != '{'))
1641 {
1642 invalidRTF = TRUE;
1643 inStream.editstream->dwError = -16;
1644 }
1645 }
1646 }
1647
1648 if (!invalidRTF && !inStream.editstream->dwError)
1649 {
1650 ME_Cursor start;
1651 from = ME_GetCursorOfs(&editor->pCursors[0]);
1652 if (format & SF_RTF) {
1653
1654 /* setup the RTF parser */
1655 memset(&parser, 0, sizeof parser);
1656 RTFSetEditStream(&parser, &inStream);
1657 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
1658 parser.editor = editor;
1659 parser.style = style;
1660 WriterInit(&parser);
1661 RTFInit(&parser);
1662 RTFSetReadHook(&parser, ME_RTFReadHook);
1663 RTFSetDestinationCallback(&parser, rtfShpPict, ME_RTFReadShpPictGroup);
1664 RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
1665 RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
1666 RTFSetDestinationCallback(&parser, rtfParNumbering, ME_RTFReadParnumGroup);
1667 if (!parser.editor->bEmulateVersion10) /* v4.1 */
1668 {
1669 RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
1670 RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
1671 }
1672 BeginFile(&parser);
1673
1674 /* do the parsing */
1675 RTFRead(&parser);
1676 RTFFlushOutputBuffer(&parser);
1677 if (!editor->bEmulateVersion10) /* v4.1 */
1678 {
1679 if (parser.tableDef && parser.tableDef->row_start &&
1680 (parser.nestingLevel > 0 || parser.canInheritInTbl))
1681 {
1682 /* Delete any incomplete table row at the end of the rich text. */
1683 int nOfs, nChars;
1684 ME_Paragraph *para;
1685
1686 parser.rtfMinor = rtfRow;
1687 /* Complete the table row before deleting it.
1688 * By doing it this way we will have the current paragraph format set
1689 * properly to reflect that is not in the complete table, and undo items
1690 * will be added for this change to the current paragraph format. */
1691 if (parser.nestingLevel > 0)
1692 {
1693 while (parser.nestingLevel > 1)
1694 ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
1695 para = parser.tableDef->row_start;
1696 ME_RTFSpecialCharHook(&parser);
1697 }
1698 else
1699 {
1700 para = parser.tableDef->row_start;
1701 ME_RTFSpecialCharHook(&parser);
1702 assert( para->nFlags & MEPF_ROWEND );
1703 para = para_next( para );
1704 }
1705
1706 editor->pCursors[1].para = para;
1707 editor->pCursors[1].run = para_first_run( para );
1708 editor->pCursors[1].nOffset = 0;
1709 nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
1710 nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
1711 ME_InternalDeleteText(editor, &editor->pCursors[1], nChars, TRUE);
1712 if (parser.tableDef) parser.tableDef->row_start = NULL;
1713 }
1714 }
1715 RTFDestroy(&parser);
1716
1717 if (parser.stackTop > 0)
1718 {
1719 while (--parser.stackTop >= 0)
1720 {
1721 ME_ReleaseStyle(parser.style);
1722 parser.style = parser.stack[parser.stackTop].style;
1723 }
1724 if (!inStream.editstream->dwError)
1725 inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
1726 }
1727
1728 /* Remove last line break, as mandated by tests. This is not affected by
1729 CR/LF counters, since RTF streaming presents only \para tokens, which
1730 are converted according to the standard rules: \r for 2.0, \r\n for 1.0
1731 */
1732 if (stripLastCR && !(format & SFF_SELECTION)) {
1733 int newto;
1734 ME_GetSelection(editor, &selStart, &selEnd);
1735 newto = ME_GetCursorOfs(selEnd);
1736 if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
1737 WCHAR lastchar[3] = {'\0', '\0'};
1738 int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
1739 ME_Cursor linebreakCursor = *selEnd, lastcharCursor = *selEnd;
1740 CHARFORMAT2W cf;
1741
1742 /* Set the final eop to the char fmt of the last char */
1743 cf.cbSize = sizeof(cf);
1744 cf.dwMask = CFM_ALL2;
1745 ME_MoveCursorChars(editor, &lastcharCursor, -1, FALSE);
1746 ME_GetCharFormat(editor, &lastcharCursor, &linebreakCursor, &cf);
1747 set_selection_cursors(editor, newto, -1);
1748 ME_SetSelectionCharFormat(editor, &cf);
1749 set_selection_cursors(editor, newto, newto);
1750
1751 ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize, FALSE);
1752 ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, FALSE, FALSE);
1753 if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
1754 ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
1755 }
1756 }
1757 }
1758 to = ME_GetCursorOfs(&editor->pCursors[0]);
1759 num_read = to - from;
1760
1761 style = parser.style;
1762 }
1763 else if (format & SF_TEXT)
1764 {
1765 num_read = ME_StreamInText(editor, format, &inStream, style);
1766 to = ME_GetCursorOfs(&editor->pCursors[0]);
1767 }
1768 else
1769 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
1770 /* put the cursor at the top */
1771 if (!(format & SFF_SELECTION))
1772 set_selection_cursors(editor, 0, 0);
1773 cursor_from_char_ofs( editor, from, &start );
1774 ME_UpdateLinkAttribute(editor, &start, to - from);
1775 }
1776
1777 /* Restore saved undo mode */
1778 editor->nUndoMode = nUndoMode;
1779
1780 /* even if we didn't add an undo, we need to commit anything on the stack */
1781 ME_CommitUndo(editor);
1782
1783 /* If SFF_SELECTION isn't set, delete any undos from before we started too */
1784 if (!(format & SFF_SELECTION))
1785 ME_EmptyUndoStack(editor);
1786
1787 ME_ReleaseStyle(style);
1788 editor->nEventMask = nEventMask;
1789 ME_UpdateRepaint(editor, FALSE);
1790 if (!(format & SFF_SELECTION)) {
1791 ME_ClearTempStyle(editor);
1792 }
1793 ME_SendSelChange(editor);
1794 ME_SendRequestResize(editor, FALSE);
1795
1796 return num_read;
1797 }
1798
1799
1800 typedef struct tagME_RTFStringStreamStruct
1801 {
1802 char *string;
1803 int pos;
1804 int length;
1805 } ME_RTFStringStreamStruct;
1806
1807 static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
1808 {
1809 ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
1810 int count;
1811
1812 count = min(cb, pStruct->length - pStruct->pos);
1813 memmove(lpBuff, pStruct->string + pStruct->pos, count);
1814 pStruct->pos += count;
1815 *pcb = count;
1816 return 0;
1817 }
1818
1819 static void
1820 ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
1821 {
1822 EDITSTREAM es;
1823 ME_RTFStringStreamStruct data;
1824
1825 data.string = string;
1826 data.length = strlen(string);
1827 data.pos = 0;
1828 es.dwCookie = (DWORD_PTR)&data;
1829 es.pfnCallback = ME_ReadFromRTFString;
1830 ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, TRUE);
1831 }
1832
1833
1834 static int
1835 ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
1836 {
1837 const int nLen = lstrlenW(text);
1838 const int nTextLen = ME_GetTextLength(editor);
1839 int nMin, nMax;
1840 ME_Cursor cursor;
1841 WCHAR wLastChar = ' ';
1842
1843 TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
1844 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
1845
1846 if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
1847 FIXME("Flags 0x%08x not implemented\n",
1848 flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
1849
1850 nMin = chrg->cpMin;
1851 if (chrg->cpMax == -1)
1852 nMax = nTextLen;
1853 else
1854 nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
1855
1856 /* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
1857 if (editor->bEmulateVersion10 && nMax == nTextLen)
1858 {
1859 flags |= FR_DOWN;
1860 }
1861
1862 /* In 1.0 emulation, cpMin must always be no greater than cpMax */
1863 if (editor->bEmulateVersion10 && nMax < nMin)
1864 {
1865 if (chrgText)
1866 {
1867 chrgText->cpMin = -1;
1868 chrgText->cpMax = -1;
1869 }
1870 return -1;
1871 }
1872
1873 /* when searching up, if cpMin < cpMax, then instead of searching
1874 * on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
1875 * [cpMax, cpMin]. The exception is when cpMax is -1, in which
1876 * case, it is always bigger than cpMin.
1877 */
1878 if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
1879 {
1880 int nSwap = nMax;
1881
1882 nMax = nMin > nTextLen ? nTextLen : nMin;
1883 if (nMin < nSwap || chrg->cpMax == -1)
1884 nMin = 0;
1885 else
1886 nMin = nSwap;
1887 }
1888
1889 if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
1890 {
1891 if (chrgText)
1892 chrgText->cpMin = chrgText->cpMax = -1;
1893 return -1;
1894 }
1895
1896 if (flags & FR_DOWN) /* Forward search */
1897 {
1898 /* If possible, find the character before where the search starts */
1899 if ((flags & FR_WHOLEWORD) && nMin)
1900 {
1901 cursor_from_char_ofs( editor, nMin - 1, &cursor );
1902 wLastChar = *get_text( cursor.run, cursor.nOffset );
1903 ME_MoveCursorChars(editor, &cursor, 1, FALSE);
1904 }
1905 else cursor_from_char_ofs( editor, nMin, &cursor );
1906
1907 while (cursor.run && ME_GetCursorOfs(&cursor) + nLen <= nMax)
1908 {
1909 ME_Run *run = cursor.run;
1910 int nCurStart = cursor.nOffset;
1911 int nMatched = 0;
1912
1913 while (run && ME_CharCompare( *get_text( run, nCurStart + nMatched ), text[nMatched], (flags & FR_MATCHCASE)))
1914 {
1915 if ((flags & FR_WHOLEWORD) && iswalnum(wLastChar))
1916 break;
1917
1918 nMatched++;
1919 if (nMatched == nLen)
1920 {
1921 ME_Run *next_run = run;
1922 int nNextStart = nCurStart;
1923 WCHAR wNextChar;
1924
1925 /* Check to see if next character is a whitespace */
1926 if (flags & FR_WHOLEWORD)
1927 {
1928 if (nCurStart + nMatched == run->len)
1929 {
1930 next_run = run_next_all_paras( run );
1931 nNextStart = -nMatched;
1932 }
1933
1934 if (next_run)
1935 wNextChar = *get_text( next_run, nNextStart + nMatched );
1936 else
1937 wNextChar = ' ';
1938
1939 if (iswalnum(wNextChar))
1940 break;
1941 }
1942
1943 cursor.nOffset += cursor.para->nCharOfs + cursor.run->nCharOfs;
1944 if (chrgText)
1945 {
1946 chrgText->cpMin = cursor.nOffset;
1947 chrgText->cpMax = cursor.nOffset + nLen;
1948 }
1949 TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
1950 return cursor.nOffset;
1951 }
1952 if (nCurStart + nMatched == run->len)
1953 {
1954 run = run_next_all_paras( run );
1955 nCurStart = -nMatched;
1956 }
1957 }
1958 if (run)
1959 wLastChar = *get_text( run, nCurStart + nMatched );
1960 else
1961 wLastChar = ' ';
1962
1963 cursor.nOffset++;
1964 if (cursor.nOffset == cursor.run->len)
1965 {
1966 if (run_next_all_paras( cursor.run ))
1967 {
1968 cursor.run = run_next_all_paras( cursor.run );
1969 cursor.para = cursor.run->para;
1970 cursor.nOffset = 0;
1971 }
1972 else
1973 cursor.run = NULL;
1974 }
1975 }
1976 }
1977 else /* Backward search */
1978 {
1979 /* If possible, find the character after where the search ends */
1980 if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
1981 {
1982 cursor_from_char_ofs( editor, nMax + 1, &cursor );
1983 wLastChar = *get_text( cursor.run, cursor.nOffset );
1984 ME_MoveCursorChars(editor, &cursor, -1, FALSE);
1985 }
1986 else cursor_from_char_ofs( editor, nMax, &cursor );
1987
1988 while (cursor.run && ME_GetCursorOfs(&cursor) - nLen >= nMin)
1989 {
1990 ME_Run *run = cursor.run;
1991 ME_Paragraph *para = cursor.para;
1992 int nCurEnd = cursor.nOffset;
1993 int nMatched = 0;
1994
1995 if (nCurEnd == 0 && run_prev_all_paras( run ))
1996 {
1997 run = run_prev_all_paras( run );
1998 para = run->para;
1999 nCurEnd = run->len;
2000 }
2001
2002 while (run && ME_CharCompare( *get_text( run, nCurEnd - nMatched - 1 ),
2003 text[nLen - nMatched - 1], (flags & FR_MATCHCASE) ))
2004 {
2005 if ((flags & FR_WHOLEWORD) && iswalnum(wLastChar))
2006 break;
2007
2008 nMatched++;
2009 if (nMatched == nLen)
2010 {
2011 ME_Run *prev_run = run;
2012 int nPrevEnd = nCurEnd;
2013 WCHAR wPrevChar;
2014 int nStart;
2015
2016 /* Check to see if previous character is a whitespace */
2017 if (flags & FR_WHOLEWORD)
2018 {
2019 if (nPrevEnd - nMatched == 0)
2020 {
2021 prev_run = run_prev_all_paras( run );
2022 if (prev_run) nPrevEnd = prev_run->len + nMatched;
2023 }
2024
2025 if (prev_run) wPrevChar = *get_text( prev_run, nPrevEnd - nMatched - 1 );
2026 else wPrevChar = ' ';
2027
2028 if (iswalnum(wPrevChar))
2029 break;
2030 }
2031
2032 nStart = para->nCharOfs + run->nCharOfs + nCurEnd - nMatched;
2033 if (chrgText)
2034 {
2035 chrgText->cpMin = nStart;
2036 chrgText->cpMax = nStart + nLen;
2037 }
2038 TRACE("found at %d-%d\n", nStart, nStart + nLen);
2039 return nStart;
2040 }
2041 if (nCurEnd - nMatched == 0)
2042 {
2043 if (run_prev_all_paras( run ))
2044 {
2045 run = run_prev_all_paras( run );
2046 para = run->para;
2047 }
2048 /* Don't care about pCurItem becoming NULL here; it's already taken
2049 * care of in the exterior loop condition */
2050 nCurEnd = run->len + nMatched;
2051 }
2052 }
2053 if (run)
2054 wLastChar = *get_text( run, nCurEnd - nMatched - 1 );
2055 else
2056 wLastChar = ' ';
2057
2058 cursor.nOffset--;
2059 if (cursor.nOffset < 0)
2060 {
2061 if (run_prev_all_paras( cursor.run ) )
2062 {
2063 cursor.run = run_prev_all_paras( cursor.run );
2064 cursor.para = cursor.run->para;
2065 cursor.nOffset = cursor.run->len;
2066 }
2067 else
2068 cursor.run = NULL;
2069 }
2070 }
2071 }
2072 TRACE("not found\n");
2073 if (chrgText)
2074 chrgText->cpMin = chrgText->cpMax = -1;
2075 return -1;
2076 }
2077
2078 static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
2079 {
2080 int nChars;
2081 ME_Cursor start;
2082
2083 if (!ex->cb || !pText) return 0;
2084
2085 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
2086 FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
2087
2088 if (ex->flags & GT_SELECTION)
2089 {
2090 int from, to;
2091 int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
2092 start = editor->pCursors[nStartCur];
2093 nChars = to - from;
2094 }
2095 else
2096 {
2097 ME_SetCursorToStart(editor, &start);
2098 nChars = INT_MAX;
2099 }
2100 if (ex->codepage == CP_UNICODE)
2101 {
2102 return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
2103 &start, nChars, ex->flags & GT_USECRLF, FALSE);
2104 }
2105 else
2106 {
2107 /* potentially each char may be a CR, why calculate the exact value with O(N) when
2108 we can just take a bigger buffer? :)
2109 The above assumption still holds with CR/LF counters, since CR->CRLF expansion
2110 occurs only in richedit 2.0 mode, in which line breaks have only one CR
2111 */
2112 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
2113 DWORD buflen;
2114 LPWSTR buffer;
2115 LRESULT rc;
2116
2117 buflen = min(crlfmul * nChars, ex->cb - 1);
2118 buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
2119
2120 nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF, FALSE);
2121 rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
2122 (LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
2123 if (rc) rc--; /* do not count 0 terminator */
2124
2125 heap_free(buffer);
2126 return rc;
2127 }
2128 }
2129
2130 static int get_text_range( ME_TextEditor *editor, WCHAR *buffer,
2131 const ME_Cursor *start, int len )
2132 {
2133 if (!buffer) return 0;
2134 return ME_GetTextW( editor, buffer, INT_MAX, start, len, FALSE, FALSE );
2135 }
2136
2137 int set_selection( ME_TextEditor *editor, int to, int from )
2138 {
2139 int end;
2140
2141 TRACE("%d - %d\n", to, from );
2142
2143 if (!editor->bHideSelection) ME_InvalidateSelection( editor );
2144 end = set_selection_cursors( editor, to, from );
2145 if (!editor->bHideSelection) ME_InvalidateSelection( editor );
2146 update_caret( editor );
2147 ME_SendSelChange( editor );
2148
2149 return end;
2150 }
2151
2152 typedef struct tagME_GlobalDestStruct
2153 {
2154 HGLOBAL hData;
2155 int nLength;
2156 } ME_GlobalDestStruct;
2157
2158 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2159 {
2160 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2161 int i;
2162 WORD *pSrc, *pDest;
2163
2164 cb = cb >> 1;
2165 pDest = (WORD *)lpBuff;
2166 pSrc = GlobalLock(pData->hData);
2167 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2168 pDest[i] = pSrc[pData->nLength+i];
2169 }
2170 pData->nLength += i;
2171 *pcb = 2*i;
2172 GlobalUnlock(pData->hData);
2173 return 0;
2174 }
2175
2176 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
2177 {
2178 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
2179 int i;
2180 BYTE *pSrc, *pDest;
2181
2182 pDest = lpBuff;
2183 pSrc = GlobalLock(pData->hData);
2184 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
2185 pDest[i] = pSrc[pData->nLength+i];
2186 }
2187 pData->nLength += i;
2188 *pcb = i;
2189 GlobalUnlock(pData->hData);
2190 return 0;
2191 }
2192
2193 static HRESULT paste_rtf(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
2194 {
2195 EDITSTREAM es;
2196 ME_GlobalDestStruct gds;
2197 HRESULT hr;
2198
2199 gds.hData = med->u.hGlobal;
2200 gds.nLength = 0;
2201 es.dwCookie = (DWORD_PTR)&gds;
2202 es.pfnCallback = ME_ReadFromHGLOBALRTF;
2203 hr = ME_StreamIn( editor, SF_RTF | SFF_SELECTION, &es, FALSE ) == 0 ? E_FAIL : S_OK;
2204 ReleaseStgMedium( med );
2205 return hr;
2206 }
2207
2208 static HRESULT paste_text(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
2209 {
2210 EDITSTREAM es;
2211 ME_GlobalDestStruct gds;
2212 HRESULT hr;
2213
2214 gds.hData = med->u.hGlobal;
2215 gds.nLength = 0;
2216 es.dwCookie = (DWORD_PTR)&gds;
2217 es.pfnCallback = ME_ReadFromHGLOBALUnicode;
2218 hr = ME_StreamIn( editor, SF_TEXT | SF_UNICODE | SFF_SELECTION, &es, FALSE ) == 0 ? E_FAIL : S_OK;
2219 ReleaseStgMedium( med );
2220 return hr;
2221 }
2222
2223 static HRESULT paste_emf(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
2224 {
2225 HRESULT hr;
2226 SIZEL sz = {0, 0};
2227
2228 hr = insert_static_object( editor, med->u.hEnhMetaFile, NULL, &sz );
2229 if (SUCCEEDED(hr))
2230 {
2231 ME_CommitUndo( editor );
2232 ME_UpdateRepaint( editor, FALSE );
2233 }
2234 else
2235 ReleaseStgMedium( med );
2236
2237 return hr;
2238 }
2239
2240 static struct paste_format
2241 {
2242 FORMATETC fmt;
2243 HRESULT (*paste)(ME_TextEditor *, FORMATETC *, STGMEDIUM *);
2244 const WCHAR *name;
2245 } paste_formats[] =
2246 {
2247 {{ -1, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }, paste_rtf, L"Rich Text Format" },
2248 {{ CF_UNICODETEXT, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }, paste_text },
2249 {{ CF_ENHMETAFILE, NULL, DVASPECT_CONTENT, -1, TYMED_ENHMF }, paste_emf },
2250 {{ 0 }}
2251 };
2252
2253 static void init_paste_formats(void)
2254 {
2255 struct paste_format *format;
2256 static int done;
2257
2258 if (!done)
2259 {
2260 for (format = paste_formats; format->fmt.cfFormat; format++)
2261 {
2262 if (format->name)
2263 format->fmt.cfFormat = RegisterClipboardFormatW( format->name );
2264 }
2265 done = 1;
2266 }
2267 }
2268
2269 static BOOL paste_special(ME_TextEditor *editor, UINT cf, REPASTESPECIAL *ps, BOOL check_only)
2270 {
2271 HRESULT hr;
2272 STGMEDIUM med;
2273 struct paste_format *format;
2274 IDataObject *data;
2275
2276 /* Protect read-only edit control from modification */
2277 if (editor->props & TXTBIT_READONLY)
2278 {
2279 if (!check_only) editor_beep( editor, MB_ICONERROR );
2280 return FALSE;
2281 }
2282
2283 init_paste_formats();
2284
2285 if (ps && ps->dwAspect != DVASPECT_CONTENT)
2286 FIXME("Ignoring aspect %x\n", ps->dwAspect);
2287
2288 hr = OleGetClipboard( &data );
2289 if (hr != S_OK) return FALSE;
2290
2291 if (cf == CF_TEXT) cf = CF_UNICODETEXT;
2292
2293 hr = S_FALSE;
2294 for (format = paste_formats; format->fmt.cfFormat; format++)
2295 {
2296 if (cf && cf != format->fmt.cfFormat) continue;
2297 hr = IDataObject_QueryGetData( data, &format->fmt );
2298 if (hr == S_OK)
2299 {
2300 if (!check_only)
2301 {
2302 hr = IDataObject_GetData( data, &format->fmt, &med );
2303 if (hr != S_OK) goto done;
2304 hr = format->paste( editor, &format->fmt, &med );
2305 }
2306 break;
2307 }
2308 }
2309
2310 done:
2311 IDataObject_Release( data );
2312
2313 return hr == S_OK;
2314 }
2315
2316 static HRESULT editor_copy( ME_TextEditor *editor, ME_Cursor *start, int chars, IDataObject **data_out )
2317 {
2318 IDataObject *data = NULL;
2319 HRESULT hr = S_OK;
2320
2321 if (editor->lpOleCallback)
2322 {
2323 CHARRANGE range;
2324 range.cpMin = ME_GetCursorOfs( start );
2325 range.cpMax = range.cpMin + chars;
2326 hr = IRichEditOleCallback_GetClipboardData( editor->lpOleCallback, &range, RECO_COPY, &data );
2327 }
2328
2329 if (FAILED( hr ) || !data)
2330 hr = ME_GetDataObject( editor, start, chars, &data );
2331
2332 if (SUCCEEDED( hr ))
2333 {
2334 if (data_out)
2335 *data_out = data;
2336 else
2337 {
2338 hr = OleSetClipboard( data );
2339 IDataObject_Release( data );
2340 }
2341 }
2342
2343 return hr;
2344 }
2345
2346 HRESULT editor_copy_or_cut( ME_TextEditor *editor, BOOL cut, ME_Cursor *start, int count,
2347 IDataObject **data_out )
2348 {
2349 HRESULT hr;
2350
2351 if (cut && (editor->props & TXTBIT_READONLY))
2352 {
2353 return E_ACCESSDENIED;
2354 }
2355
2356 hr = editor_copy( editor, start, count, data_out );
2357 if (SUCCEEDED(hr) && cut)
2358 {
2359 ME_InternalDeleteText( editor, start, count, FALSE );
2360 ME_CommitUndo( editor );
2361 ME_UpdateRepaint( editor, TRUE );
2362 }
2363 return hr;
2364 }
2365
2366 static BOOL copy_or_cut( ME_TextEditor *editor, BOOL cut )
2367 {
2368 HRESULT hr;
2369 int offs, count;
2370 int start_cursor = ME_GetSelectionOfs( editor, &offs, &count );
2371 ME_Cursor *sel_start = &editor->pCursors[start_cursor];
2372
2373 if (editor->password_char) return FALSE;
2374
2375 count -= offs;
2376 hr = editor_copy_or_cut( editor, cut, sel_start, count, NULL );
2377 if (FAILED( hr )) editor_beep( editor, MB_ICONERROR );
2378
2379 return SUCCEEDED( hr );
2380 }
2381
2382 static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
2383 {
2384 ME_Paragraph *start_para, *end_para;
2385 ME_Cursor *from, *to, start;
2386 int num_chars;
2387
2388 if (!editor->AutoURLDetect_bEnable) return;
2389
2390 ME_GetSelection(editor, &from, &to);
2391
2392 /* Find paragraph previous to the one that contains start cursor */
2393 start_para = from->para;
2394 if (para_prev( start_para )) start_para = para_prev( start_para );
2395
2396 /* Find paragraph that contains end cursor */
2397 end_para = para_next( to->para );
2398
2399 start.para = start_para;
2400 start.run = para_first_run( start_para );
2401 start.nOffset = 0;
2402 num_chars = end_para->nCharOfs - start_para->nCharOfs;
2403
2404 ME_UpdateLinkAttribute( editor, &start, num_chars );
2405 }
2406
2407 static BOOL handle_enter(ME_TextEditor *editor)
2408 {
2409 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2410
2411 if (editor->props & TXTBIT_MULTILINE)
2412 {
2413 ME_Cursor cursor = editor->pCursors[0];
2414 ME_Paragraph *para = cursor.para;
2415 int from, to;
2416 ME_Style *style, *eop_style;
2417
2418 if (editor->props & TXTBIT_READONLY)
2419 {
2420 editor_beep( editor, MB_ICONERROR );
2421 return TRUE;
2422 }
2423
2424 ME_GetSelectionOfs(editor, &from, &to);
2425 if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2426 {
2427 if (!editor->bEmulateVersion10) /* v4.1 */
2428 {
2429 if (para->nFlags & MEPF_ROWEND)
2430 {
2431 /* Add a new table row after this row. */
2432 para = table_append_row( editor, para );
2433 para = para_next( para );
2434 editor->pCursors[0].para = para;
2435 editor->pCursors[0].run = para_first_run( para );
2436 editor->pCursors[0].nOffset = 0;
2437 editor->pCursors[1] = editor->pCursors[0];
2438 ME_CommitUndo(editor);
2439 ME_UpdateRepaint(editor, FALSE);
2440 return TRUE;
2441 }
2442 else if (para == editor->pCursors[1].para &&
2443 cursor.nOffset + cursor.run->nCharOfs == 0 &&
2444 para_prev( para ) && para_prev( para )->nFlags & MEPF_ROWSTART &&
2445 !para_prev( para )->nCharOfs)
2446 {
2447 /* Insert a newline before the table. */
2448 para = para_prev( para );
2449 para->nFlags &= ~MEPF_ROWSTART;
2450 editor->pCursors[0].para = para;
2451 editor->pCursors[0].run = para_first_run( para );
2452 editor->pCursors[1] = editor->pCursors[0];
2453 ME_InsertTextFromCursor( editor, 0, L"\r", 1, editor->pCursors[0].run->style );
2454 para = editor_first_para( editor );
2455 editor_set_default_para_fmt( editor, &para->fmt );
2456 para->nFlags = 0;
2457 para_mark_rewrap( editor, para );
2458 editor->pCursors[0].para = para;
2459 editor->pCursors[0].run = para_first_run( para );
2460 editor->pCursors[1] = editor->pCursors[0];
2461 para_next( para )->nFlags |= MEPF_ROWSTART;
2462 ME_CommitCoalescingUndo(editor);
2463 ME_UpdateRepaint(editor, FALSE);
2464 return TRUE;
2465 }
2466 }
2467 else /* v1.0 - 3.0 */
2468 {
2469 ME_Paragraph *para = cursor.para;
2470 if (para_in_table( para ))
2471 {
2472 if (cursor.run->nFlags & MERF_ENDPARA)
2473 {
2474 if (from == to)
2475 {
2476 ME_ContinueCoalescingTransaction(editor);
2477 para = table_append_row( editor, para );
2478 editor->pCursors[0].para = para;
2479 editor->pCursors[0].run = para_first_run( para );
2480 editor->pCursors[0].nOffset = 0;
2481 editor->pCursors[1] = editor->pCursors[0];
2482 ME_CommitCoalescingUndo(editor);
2483 ME_UpdateRepaint(editor, FALSE);
2484 return TRUE;
2485 }
2486 }
2487 else
2488 {
2489 ME_ContinueCoalescingTransaction(editor);
2490 if (cursor.run->nCharOfs + cursor.nOffset == 0 &&
2491 para_prev( para ) && !para_in_table( para_prev( para ) ))
2492 {
2493 /* Insert newline before table */
2494 cursor.run = para_end_run( para_prev( para ) );
2495 if (cursor.run)
2496 {
2497 editor->pCursors[0].run = cursor.run;
2498 editor->pCursors[0].para = para_prev( para );
2499 }
2500 editor->pCursors[0].nOffset = 0;
2501 editor->pCursors[1] = editor->pCursors[0];
2502 ME_InsertTextFromCursor( editor, 0, L"\r", 1, editor->pCursors[0].run->style );
2503 }
2504 else
2505 {
2506 editor->pCursors[1] = editor->pCursors[0];
2507 para = table_append_row( editor, para );
2508 editor->pCursors[0].para = para;
2509 editor->pCursors[0].run = para_first_run( para );
2510 editor->pCursors[0].nOffset = 0;
2511 editor->pCursors[1] = editor->pCursors[0];
2512 }
2513 ME_CommitCoalescingUndo(editor);
2514 ME_UpdateRepaint(editor, FALSE);
2515 return TRUE;
2516 }
2517 }
2518 }
2519
2520 style = style_get_insert_style( editor, editor->pCursors );
2521
2522 /* Normally the new eop style is the insert style, however in a list it is copied from the existing
2523 eop style (this prevents the list label style changing when the new eop is inserted).
2524 No extra ref is taken here on eop_style. */
2525 if (para->fmt.wNumbering)
2526 eop_style = para->eop_run->style;
2527 else
2528 eop_style = style;
2529 ME_ContinueCoalescingTransaction(editor);
2530 if (shift_is_down)
2531 ME_InsertEndRowFromCursor(editor, 0);
2532 else
2533 if (!editor->bEmulateVersion10)
2534 ME_InsertTextFromCursor(editor, 0, L"\r", 1, eop_style);
2535 else
2536 ME_InsertTextFromCursor(editor, 0, L"\r\n", 2, eop_style);
2537 ME_CommitCoalescingUndo(editor);
2538 SetCursor(NULL);
2539
2540 ME_UpdateSelectionLinkAttribute(editor);
2541 ME_UpdateRepaint(editor, FALSE);
2542 ME_SaveTempStyle(editor, style); /* set the temp insert style for the new para */
2543 ME_ReleaseStyle(style);
2544 }
2545 return TRUE;
2546 }
2547 return FALSE;
2548 }
2549
2550 static BOOL
2551 ME_KeyDown(ME_TextEditor *editor, WORD nKey)
2552 {
2553 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2554 BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
2555
2556 if (editor->bMouseCaptured)
2557 return FALSE;
2558 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
2559 editor->nSelectionType = stPosition;
2560
2561 switch (nKey)
2562 {
2563 case VK_LEFT:
2564 case VK_RIGHT:
2565 case VK_HOME:
2566 case VK_END:
2567 editor->nUDArrowX = -1;
2568 /* fall through */
2569 case VK_UP:
2570 case VK_DOWN:
2571 case VK_PRIOR:
2572 case VK_NEXT:
2573 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
2574 ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
2575 return TRUE;
2576 case VK_BACK:
2577 case VK_DELETE:
2578 editor->nUDArrowX = -1;
2579 /* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
2580 if (editor->props & TXTBIT_READONLY)
2581 return FALSE;
2582 if (ME_IsSelection(editor))
2583 {
2584 ME_DeleteSelection(editor);
2585 ME_CommitUndo(editor);
2586 }
2587 else if (nKey == VK_DELETE)
2588 {
2589 /* Delete stops group typing.
2590 * (See MSDN remarks on EM_STOPGROUPTYPING message) */
2591 ME_DeleteTextAtCursor(editor, 1, 1);
2592 ME_CommitUndo(editor);
2593 }
2594 else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
2595 {
2596 BOOL bDeletionSucceeded;
2597 /* Backspace can be grouped for a single undo */
2598 ME_ContinueCoalescingTransaction(editor);
2599 bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
2600 if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
2601 /* Deletion was prevented so the cursor is moved back to where it was.
2602 * (e.g. this happens when trying to delete cell boundaries)
2603 */
2604 ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
2605 }
2606 ME_CommitCoalescingUndo(editor);
2607 }
2608 else
2609 return TRUE;
2610 table_move_from_row_start( editor );
2611 ME_UpdateSelectionLinkAttribute(editor);
2612 ME_UpdateRepaint(editor, FALSE);
2613 ME_SendRequestResize(editor, FALSE);
2614 return TRUE;
2615 case VK_RETURN:
2616 if (!editor->bEmulateVersion10)
2617 return handle_enter(editor);
2618 break;
2619 case 'A':
2620 if (ctrl_is_down)
2621 {
2622 set_selection( editor, 0, -1 );
2623 return TRUE;
2624 }
2625 break;
2626 case 'V':
2627 if (ctrl_is_down)
2628 return paste_special( editor, 0, NULL, FALSE );
2629 break;
2630 case 'C':
2631 case 'X':
2632 if (ctrl_is_down)
2633 return copy_or_cut(editor, nKey == 'X');
2634 break;
2635 case 'Z':
2636 if (ctrl_is_down)
2637 {
2638 ME_Undo(editor);
2639 return TRUE;
2640 }
2641 break;
2642 case 'Y':
2643 if (ctrl_is_down)
2644 {
2645 ME_Redo(editor);
2646 return TRUE;
2647 }
2648 break;
2649
2650 default:
2651 if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
2652 editor->nUDArrowX = -1;
2653 if (ctrl_is_down)
2654 {
2655 if (nKey == 'W')
2656 {
2657 CHARFORMAT2W chf;
2658 char buf[2048];
2659 chf.cbSize = sizeof(chf);
2660
2661 ME_GetSelectionCharFormat(editor, &chf);
2662 ME_DumpStyleToBuf(&chf, buf);
2663 MessageBoxA(NULL, buf, "Style dump", MB_OK);
2664 }
2665 if (nKey == 'Q')
2666 {
2667 ME_CheckCharOffsets(editor);
2668 }
2669 }
2670 }
2671 return FALSE;
2672 }
2673
2674 static LRESULT handle_wm_char( ME_TextEditor *editor, WCHAR wstr, LPARAM flags )
2675 {
2676 if (editor->bMouseCaptured)
2677 return 0;
2678
2679 if (editor->props & TXTBIT_READONLY)
2680 {
2681 editor_beep( editor, MB_ICONERROR );
2682 return 0; /* FIXME really 0 ? */
2683 }
2684
2685 if (editor->bEmulateVersion10 && wstr == '\r')
2686 handle_enter(editor);
2687
2688 if ((unsigned)wstr >= ' ' || wstr == '\t')
2689 {
2690 ME_Cursor cursor = editor->pCursors[0];
2691 ME_Paragraph *para = cursor.para;
2692 int from, to;
2693 BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
2694 ME_GetSelectionOfs(editor, &from, &to);
2695 if (wstr == '\t' &&
2696 /* v4.1 allows tabs to be inserted with ctrl key down */
2697 !(ctrl_is_down && !editor->bEmulateVersion10))
2698 {
2699 BOOL selected_row = FALSE;
2700
2701 if (ME_IsSelection(editor) &&
2702 cursor.run->nCharOfs + cursor.nOffset == 0 &&
2703 to == ME_GetCursorOfs(&editor->pCursors[0]) && para_prev( para ))
2704 {
2705 para = para_prev( para );
2706 selected_row = TRUE;
2707 }
2708 if (para_in_table( para ))
2709 {
2710 table_handle_tab( editor, selected_row );
2711 ME_CommitUndo(editor);
2712 return 0;
2713 }
2714 }
2715 else if (!editor->bEmulateVersion10) /* v4.1 */
2716 {
2717 if (para->nFlags & MEPF_ROWEND)
2718 {
2719 if (from == to)
2720 {
2721 para = para_next( para );
2722 if (para->nFlags & MEPF_ROWSTART) para = para_next( para );
2723 editor->pCursors[0].para = para;
2724 editor->pCursors[0].run = para_first_run( para );
2725 editor->pCursors[0].nOffset = 0;
2726 editor->pCursors[1] = editor->pCursors[0];
2727 }
2728 }
2729 }
2730 else /* v1.0 - 3.0 */
2731 {
2732 if (para_in_table( para ) && cursor.run->nFlags & MERF_ENDPARA && from == to)
2733 {
2734 /* Text should not be inserted at the end of the table. */
2735 editor_beep( editor, -1 );
2736 return 0;
2737 }
2738 }
2739 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
2740 /* WM_CHAR is restricted to nTextLimit */
2741 if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
2742 {
2743 ME_Style *style = style_get_insert_style( editor, editor->pCursors );
2744 ME_ContinueCoalescingTransaction(editor);
2745 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
2746 ME_ReleaseStyle(style);
2747 ME_CommitCoalescingUndo(editor);
2748 ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
2749 }
2750
2751 ME_UpdateSelectionLinkAttribute(editor);
2752 ME_UpdateRepaint(editor, FALSE);
2753 }
2754 return 0;
2755 }
2756
2757 /* Process the message and calculate the new click count.
2758 *
2759 * returns: The click count if it is mouse down event, else returns 0. */
2760 static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
2761 LPARAM lParam)
2762 {
2763 static int clickNum = 0;
2764 if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
2765 return 0;
2766
2767 if ((msg == WM_LBUTTONDBLCLK) ||
2768 (msg == WM_RBUTTONDBLCLK) ||
2769 (msg == WM_MBUTTONDBLCLK) ||
2770 (msg == WM_XBUTTONDBLCLK))
2771 {
2772 msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
2773 }
2774
2775 if ((msg == WM_LBUTTONDOWN) ||
2776 (msg == WM_RBUTTONDOWN) ||
2777 (msg == WM_MBUTTONDOWN) ||
2778 (msg == WM_XBUTTONDOWN))
2779 {
2780 static MSG prevClickMsg;
2781 MSG clickMsg;
2782 /* Compare the editor instead of the hwnd so that the this
2783 * can still be done for windowless richedit controls. */
2784 clickMsg.hwnd = (HWND)editor;
2785 clickMsg.message = msg;
2786 clickMsg.wParam = wParam;
2787 clickMsg.lParam = lParam;
2788 clickMsg.time = GetMessageTime();
2789 clickMsg.pt.x = (short)LOWORD(lParam);
2790 clickMsg.pt.y = (short)HIWORD(lParam);
2791 if ((clickNum != 0) &&
2792 (clickMsg.message == prevClickMsg.message) &&
2793 (clickMsg.hwnd == prevClickMsg.hwnd) &&
2794 (clickMsg.wParam == prevClickMsg.wParam) &&
2795 (clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
2796 (abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
2797 (abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
2798 {
2799 clickNum++;
2800 } else {
2801 clickNum = 1;
2802 }
2803 prevClickMsg = clickMsg;
2804 } else {
2805 return 0;
2806 }
2807 return clickNum;
2808 }
2809
2810 static BOOL is_link( ME_Run *run )
2811 {
2812 return (run->style->fmt.dwMask & CFM_LINK) && (run->style->fmt.dwEffects & CFE_LINK);
2813 }
2814
2815 void editor_set_cursor( ME_TextEditor *editor, int x, int y )
2816 {
2817 ME_Cursor pos;
2818 BOOL is_exact;
2819 static HCURSOR cursor_arrow, cursor_hand, cursor_ibeam, cursor_reverse;
2820 HCURSOR cursor;
2821
2822 if (!cursor_arrow)
2823 {
2824 cursor_arrow = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_ARROW ) );
2825 cursor_hand = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_HAND ) );
2826 cursor_ibeam = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_IBEAM ) );
2827 cursor_reverse = LoadCursorW( dll_instance, MAKEINTRESOURCEW( OCR_REVERSE ) );
2828 }
2829
2830 cursor = cursor_ibeam;
2831
2832 if ((editor->nSelectionType == stLine && editor->bMouseCaptured) ||
2833 (!editor->bEmulateVersion10 && y < editor->rcFormat.top && x < editor->rcFormat.left))
2834 cursor = cursor_reverse;
2835 else if (y < editor->rcFormat.top || y > editor->rcFormat.bottom)
2836 {
2837 if (editor->bEmulateVersion10) cursor = cursor_arrow;
2838 else cursor = cursor_ibeam;
2839 }
2840 else if (x < editor->rcFormat.left) cursor = cursor_reverse;
2841 else
2842 {
2843 ME_CharFromPos( editor, x, y, &pos, &is_exact );
2844 if (is_exact)
2845 {
2846 ME_Run *run = pos.run;
2847
2848 if (is_link( run )) cursor = cursor_hand;
2849
2850 else if (ME_IsSelection( editor ))
2851 {
2852 int start, end, offset = ME_GetCursorOfs( &pos );
2853
2854 ME_GetSelectionOfs( editor, &start, &end );
2855 if (start <= offset && end >= offset) cursor = cursor_arrow;
2856 }
2857 }
2858 }
2859
2860 ITextHost_TxSetCursor( editor->texthost, cursor, cursor == cursor_ibeam );
2861 }
2862
2863 static LONG ME_GetSelectionType(ME_TextEditor *editor)
2864 {
2865 LONG sel_type = SEL_EMPTY;
2866 LONG start, end;
2867
2868 ME_GetSelectionOfs(editor, &start, &end);
2869 if (start == end)
2870 sel_type = SEL_EMPTY;
2871 else
2872 {
2873 LONG object_count = 0, character_count = 0;
2874 int i;
2875
2876 for (i = 0; i < end - start; i++)
2877 {
2878 ME_Cursor cursor;
2879
2880 cursor_from_char_ofs( editor, start + i, &cursor );
2881 if (cursor.run->reobj) object_count++;
2882 else character_count++;
2883 if (character_count >= 2 && object_count >= 2)
2884 return (SEL_TEXT | SEL_MULTICHAR | SEL_OBJECT | SEL_MULTIOBJECT);
2885 }
2886 if (character_count)
2887 {
2888 sel_type |= SEL_TEXT;
2889 if (character_count >= 2)
2890 sel_type |= SEL_MULTICHAR;
2891 }
2892 if (object_count)
2893 {
2894 sel_type |= SEL_OBJECT;
2895 if (object_count >= 2)
2896 sel_type |= SEL_MULTIOBJECT;
2897 }
2898 }
2899 return sel_type;
2900 }
2901
2902 static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
2903 {
2904 CHARRANGE selrange;
2905 HMENU menu;
2906 int seltype;
2907 HWND hwnd, parent;
2908
2909 if (!editor->lpOleCallback || !editor->have_texthost2) return FALSE;
2910 if (FAILED( ITextHost2_TxGetWindow( editor->texthost, &hwnd ))) return FALSE;
2911 parent = GetParent( hwnd );
2912 if (!parent) parent = hwnd;
2913
2914 ME_GetSelectionOfs( editor, &selrange.cpMin, &selrange.cpMax );
2915 seltype = ME_GetSelectionType( editor );
2916 if (SUCCEEDED( IRichEditOleCallback_GetContextMenu( editor->lpOleCallback, seltype, NULL, &selrange, &menu ) ))
2917 {
2918 TrackPopupMenu( menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, parent, NULL );
2919 DestroyMenu( menu );
2920 }
2921 return TRUE;
2922 }
2923
2924 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
2925 {
2926 ME_TextEditor *ed = heap_alloc(sizeof(*ed));
2927 int i;
2928 LONG selbarwidth;
2929 HRESULT hr;
2930
2931 ed->sizeWindow.cx = ed->sizeWindow.cy = 0;
2932 if (ITextHost_QueryInterface( texthost, &IID_ITextHost2, (void **)&ed->texthost ) == S_OK)
2933 {
2934 ITextHost_Release( texthost );
2935 ed->have_texthost2 = TRUE;
2936 }
2937 else
2938 {
2939 ed->texthost = (ITextHost2 *)texthost;
2940 ed->have_texthost2 = FALSE;
2941 }
2942
2943 ed->bEmulateVersion10 = bEmulateVersion10;
2944 ed->in_place_active = FALSE;
2945 ed->total_rows = 0;
2946 ITextHost_TxGetPropertyBits( ed->texthost, TXTBIT_RICHTEXT | TXTBIT_MULTILINE | TXTBIT_READONLY |
2947 TXTBIT_USEPASSWORD | TXTBIT_HIDESELECTION | TXTBIT_SAVESELECTION |
2948 TXTBIT_AUTOWORDSEL | TXTBIT_VERTICAL | TXTBIT_WORDWRAP | TXTBIT_ALLOWBEEP |
2949 TXTBIT_DISABLEDRAG,
2950 &ed->props );
2951 ITextHost_TxGetScrollBars( ed->texthost, &ed->scrollbars );
2952 ed->pBuffer = ME_MakeText();
2953 ed->nZoomNumerator = ed->nZoomDenominator = 0;
2954 ed->nAvailWidth = 0; /* wrap to client area */
2955 list_init( &ed->style_list );
2956 ME_MakeFirstParagraph(ed);
2957 /* The four cursors are for:
2958 * 0 - The position where the caret is shown
2959 * 1 - The anchored end of the selection (for normal selection)
2960 * 2 & 3 - The anchored start and end respectively for word, line,
2961 * or paragraph selection.
2962 */
2963 ed->nCursors = 4;
2964 ed->pCursors = heap_alloc(ed->nCursors * sizeof(*ed->pCursors));
2965 ME_SetCursorToStart(ed, &ed->pCursors[0]);
2966 ed->pCursors[1] = ed->pCursors[0];
2967 ed->pCursors[2] = ed->pCursors[0];
2968 ed->pCursors[3] = ed->pCursors[1];
2969 ed->nLastTotalLength = ed->nTotalLength = 0;
2970 ed->nLastTotalWidth = ed->nTotalWidth = 0;
2971 ed->nUDArrowX = -1;
2972 ed->nEventMask = 0;
2973 ed->nModifyStep = 0;
2974 ed->nTextLimit = TEXT_LIMIT_DEFAULT;
2975 list_init( &ed->undo_stack );
2976 list_init( &ed->redo_stack );
2977 ed->nUndoStackSize = 0;
2978 ed->nUndoLimit = STACK_SIZE_DEFAULT;
2979 ed->nUndoMode = umAddToUndo;
2980 ed->nParagraphs = 1;
2981 ed->nLastSelStart = ed->nLastSelEnd = 0;
2982 ed->last_sel_start_para = ed->last_sel_end_para = ed->pCursors[0].para;
2983 ed->bHideSelection = FALSE;
2984 ed->pfnWordBreak = NULL;
2985 ed->richole = NULL;
2986 ed->lpOleCallback = NULL;
2987 ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
2988 ed->mode |= (ed->props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
2989 ed->AutoURLDetect_bEnable = FALSE;
2990 ed->bHaveFocus = FALSE;
2991 ed->bMouseCaptured = FALSE;
2992 ed->caret_hidden = FALSE;
2993 ed->caret_height = 0;
2994 for (i=0; i<HFONT_CACHE_SIZE; i++)
2995 {
2996 ed->pFontCache[i].nRefs = 0;
2997 ed->pFontCache[i].nAge = 0;
2998 ed->pFontCache[i].hFont = NULL;
2999 }
3000
3001 ME_CheckCharOffsets(ed);
3002 SetRectEmpty(&ed->rcFormat);
3003 hr = ITextHost_TxGetSelectionBarWidth( ed->texthost, &selbarwidth );
3004 /* FIXME: Convert selbarwidth from HIMETRIC to pixels */
3005 if (hr == S_OK && selbarwidth) ed->selofs = SELECTIONBAR_WIDTH;
3006 else ed->selofs = 0;
3007 ed->nSelectionType = stPosition;
3008
3009 ed->password_char = 0;
3010 if (ed->props & TXTBIT_USEPASSWORD)
3011 ITextHost_TxGetPasswordChar( ed->texthost, &ed->password_char );
3012
3013 ed->bWordWrap = (ed->props & TXTBIT_WORDWRAP) && (ed->props & TXTBIT_MULTILINE);
3014
3015 ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
3016
3017 /* Default scrollbar information */
3018 ed->vert_si.cbSize = sizeof(SCROLLINFO);
3019 ed->vert_si.nMin = 0;
3020 ed->vert_si.nMax = 0;
3021 ed->vert_si.nPage = 0;
3022 ed->vert_si.nPos = 0;
3023 ed->vert_sb_enabled = 0;
3024
3025 ed->horz_si.cbSize = sizeof(SCROLLINFO);
3026 ed->horz_si.nMin = 0;
3027 ed->horz_si.nMax = 0;
3028 ed->horz_si.nPage = 0;
3029 ed->horz_si.nPos = 0;
3030 ed->horz_sb_enabled = 0;
3031
3032 if (ed->scrollbars & ES_DISABLENOSCROLL)
3033 {
3034 if (ed->scrollbars & WS_VSCROLL)
3035 {
3036 ITextHost_TxSetScrollRange( ed->texthost, SB_VERT, 0, 1, TRUE );
3037 ITextHost_TxEnableScrollBar( ed->texthost, SB_VERT, ESB_DISABLE_BOTH );
3038 }
3039 if (ed->scrollbars & WS_HSCROLL)
3040 {
3041 ITextHost_TxSetScrollRange( ed->texthost, SB_HORZ, 0, 1, TRUE );
3042 ITextHost_TxEnableScrollBar( ed->texthost, SB_HORZ, ESB_DISABLE_BOTH );
3043 }
3044 }
3045
3046 ed->wheel_remain = 0;
3047
3048 ed->back_style = TXTBACK_OPAQUE;
3049 ITextHost_TxGetBackStyle( ed->texthost, &ed->back_style );
3050
3051 list_init( &ed->reobj_list );
3052 OleInitialize(NULL);
3053
3054 return ed;
3055 }
3056
3057 void ME_DestroyEditor(ME_TextEditor *editor)
3058 {
3059 ME_DisplayItem *p = editor->pBuffer->pFirst, *pNext = NULL;
3060 ME_Style *s, *cursor2;
3061 int i;
3062
3063 ME_ClearTempStyle(editor);
3064 ME_EmptyUndoStack(editor);
3065 editor->pBuffer->pFirst = NULL;
3066 while(p)
3067 {
3068 pNext = p->next;
3069 if (p->type == diParagraph)
3070 para_destroy( editor, &p->member.para );
3071 else
3072 ME_DestroyDisplayItem(p);
3073 p = pNext;
3074 }
3075
3076 LIST_FOR_EACH_ENTRY_SAFE( s, cursor2, &editor->style_list, ME_Style, entry )
3077 ME_DestroyStyle( s );
3078
3079 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
3080 for (i=0; i<HFONT_CACHE_SIZE; i++)
3081 {
3082 if (editor->pFontCache[i].hFont)
3083 DeleteObject(editor->pFontCache[i].hFont);
3084 }
3085 if(editor->lpOleCallback)
3086 IRichEditOleCallback_Release(editor->lpOleCallback);
3087
3088 OleUninitialize();
3089
3090 heap_free(editor->pBuffer);
3091 heap_free(editor->pCursors);
3092 heap_free(editor);
3093 }
3094
3095 static inline int get_default_line_height( ME_TextEditor *editor )
3096 {
3097 int height = 0;
3098
3099 if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
3100 height = editor->pBuffer->pDefaultStyle->tm.tmHeight;
3101 if (height <= 0) height = 24;
3102
3103 return height;
3104 }
3105
3106 static inline int calc_wheel_change( int *remain, int amount_per_click )
3107 {
3108 int change = amount_per_click * (float)*remain / WHEEL_DELTA;
3109 *remain -= WHEEL_DELTA * change / amount_per_click;
3110 return change;
3111 }
3112
3113 void link_notify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
3114 {
3115 int x,y;
3116 BOOL isExact;
3117 ME_Cursor cursor; /* The start of the clicked text. */
3118 ME_Run *run;
3119 ENLINK info;
3120
3121 x = (short)LOWORD(lParam);
3122 y = (short)HIWORD(lParam);
3123 ME_CharFromPos(editor, x, y, &cursor, &isExact);
3124 if (!isExact) return;
3125
3126 if (is_link( cursor.run ))
3127 { /* The clicked run has CFE_LINK set */
3128 info.nmhdr.hwndFrom = NULL;
3129 info.nmhdr.idFrom = 0;
3130 info.nmhdr.code = EN_LINK;
3131 info.msg = msg;
3132 info.wParam = wParam;
3133 info.lParam = lParam;
3134 cursor.nOffset = 0;
3135
3136 /* find the first contiguous run with CFE_LINK set */
3137 info.chrg.cpMin = ME_GetCursorOfs(&cursor);
3138 run = cursor.run;
3139 while ((run = run_prev( run )) && is_link( run ))
3140 info.chrg.cpMin -= run->len;
3141
3142 /* find the last contiguous run with CFE_LINK set */
3143 info.chrg.cpMax = ME_GetCursorOfs(&cursor) + cursor.run->len;
3144 run = cursor.run;
3145 while ((run = run_next( run )) && is_link( run ))
3146 info.chrg.cpMax += run->len;
3147
3148 ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
3149 }
3150 }
3151
3152 void ME_ReplaceSel(ME_TextEditor *editor, BOOL can_undo, const WCHAR *str, int len)
3153 {
3154 int from, to, nStartCursor;
3155 ME_Style *style;
3156
3157 nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3158 style = ME_GetSelectionInsertStyle(editor);
3159 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3160 ME_InsertTextFromCursor(editor, 0, str, len, style);
3161 ME_ReleaseStyle(style);
3162 /* drop temporary style if line end */
3163 /*
3164 * FIXME question: does abc\n mean: put abc,
3165 * clear temp style, put \n? (would require a change)
3166 */
3167 if (len>0 && str[len-1] == '\n')
3168 ME_ClearTempStyle(editor);
3169 ME_CommitUndo(editor);
3170 ME_UpdateSelectionLinkAttribute(editor);
3171 if (!can_undo)
3172 ME_EmptyUndoStack(editor);
3173 ME_UpdateRepaint(editor, FALSE);
3174 }
3175
3176 static void ME_SetText(ME_TextEditor *editor, void *text, BOOL unicode)
3177 {
3178 LONG codepage = unicode ? CP_UNICODE : CP_ACP;
3179 int textLen;
3180
3181 LPWSTR wszText = ME_ToUnicode(codepage, text, &textLen);
3182 ME_InsertTextFromCursor(editor, 0, wszText, textLen, editor->pBuffer->pDefaultStyle);
3183 ME_EndToUnicode(codepage, wszText);
3184 }
3185
3186 static LRESULT handle_EM_SETCHARFORMAT( ME_TextEditor *editor, WPARAM flags, const CHARFORMAT2W *fmt_in )
3187 {
3188 CHARFORMAT2W fmt;
3189 BOOL changed = TRUE;
3190 ME_Cursor start, end;
3191
3192 if (!cfany_to_cf2w( &fmt, fmt_in )) return 0;
3193
3194 if (flags & SCF_ALL)
3195 {
3196 if (editor->mode & TM_PLAINTEXT)
3197 {
3198 ME_SetDefaultCharFormat( editor, &fmt );
3199 }
3200 else
3201 {
3202 ME_SetCursorToStart( editor, &start );
3203 ME_SetCharFormat( editor, &start, NULL, &fmt );
3204 editor->nModifyStep = 1;
3205 }
3206 }
3207 else if (flags & SCF_SELECTION)
3208 {
3209 if (editor->mode & TM_PLAINTEXT) return 0;
3210 if (flags & SCF_WORD)
3211 {
3212 end = editor->pCursors[0];
3213 ME_MoveCursorWords( editor, &end, +1 );
3214 start = end;
3215 ME_MoveCursorWords( editor, &start, -1 );
3216 ME_SetCharFormat( editor, &start, &end, &fmt );
3217 }
3218 changed = ME_IsSelection( editor );
3219 ME_SetSelectionCharFormat( editor, &fmt );
3220 if (changed) editor->nModifyStep = 1;
3221 }
3222 else /* SCF_DEFAULT */
3223 {
3224 ME_SetDefaultCharFormat( editor, &fmt );
3225 }
3226
3227 ME_CommitUndo( editor );
3228 if (changed)
3229 {
3230 ME_WrapMarkedParagraphs( editor );
3231 ME_UpdateScrollBar( editor );
3232 }
3233 return 1;
3234 }
3235
3236 #define UNSUPPORTED_MSG(e) \
3237 case e: \
3238 FIXME(#e ": stub\n"); \
3239 *phresult = S_FALSE; \
3240 return 0;
3241
3242 /* Handle messages for windowless and windowed richedit controls.
3243 *
3244 * The LRESULT that is returned is a return value for window procs,
3245 * and the phresult parameter is the COM return code needed by the
3246 * text services interface. */
3247 LRESULT editor_handle_message( ME_TextEditor *editor, UINT msg, WPARAM wParam,
3248 LPARAM lParam, HRESULT* phresult )
3249 {
3250 *phresult = S_OK;
3251
3252 switch(msg) {
3253
3254 UNSUPPORTED_MSG(EM_DISPLAYBAND)
3255 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
3256 UNSUPPORTED_MSG(EM_FMTLINES)
3257 UNSUPPORTED_MSG(EM_FORMATRANGE)
3258 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
3259 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
3260 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
3261 UNSUPPORTED_MSG(EM_GETIMESTATUS)
3262 UNSUPPORTED_MSG(EM_SETIMESTATUS)
3263 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
3264 UNSUPPORTED_MSG(EM_GETREDONAME)
3265 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
3266 UNSUPPORTED_MSG(EM_GETUNDONAME)
3267 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
3268 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
3269 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
3270 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
3271 UNSUPPORTED_MSG(EM_SETMARGINS)
3272 UNSUPPORTED_MSG(EM_SETPALETTE)
3273 UNSUPPORTED_MSG(EM_SETTABSTOPS)
3274 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
3275 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
3276
3277 /* Messages specific to Richedit controls */
3278
3279 case EM_STREAMIN:
3280 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
3281 case EM_STREAMOUT:
3282 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
3283 case EM_EMPTYUNDOBUFFER:
3284 ME_EmptyUndoStack(editor);
3285 return 0;
3286 case EM_GETSEL:
3287 {
3288 /* Note: wParam/lParam can be NULL */
3289 UINT from, to;
3290 PUINT pfrom = wParam ? (PUINT)wParam : &from;
3291 PUINT pto = lParam ? (PUINT)lParam : &to;
3292 ME_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
3293 if ((*pfrom|*pto) & 0xFFFF0000)
3294 return -1;
3295 return MAKELONG(*pfrom,*pto);
3296 }
3297 case EM_EXGETSEL:
3298 {
3299 CHARRANGE *pRange = (CHARRANGE *)lParam;
3300 ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
3301 TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
3302 return 0;
3303 }
3304 case EM_SETUNDOLIMIT:
3305 {
3306 if ((int)wParam < 0)
3307 editor->nUndoLimit = STACK_SIZE_DEFAULT;
3308 else
3309 editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
3310 /* Setting a max stack size keeps wine from getting killed
3311 for hogging memory. Windows allocates all this memory at once, so
3312 no program would realistically set a value above our maximum. */
3313 return editor->nUndoLimit;
3314 }
3315 case EM_CANUNDO:
3316 return !list_empty( &editor->undo_stack );
3317 case EM_CANREDO:
3318 return !list_empty( &editor->redo_stack );
3319 case WM_UNDO: /* FIXME: actually not the same */
3320 case EM_UNDO:
3321 return ME_Undo(editor);
3322 case EM_REDO:
3323 return ME_Redo(editor);
3324 case EM_SETFONTSIZE:
3325 {
3326 CHARFORMAT2W cf;
3327 LONG tmp_size, size;
3328 BOOL is_increase = ((LONG)wParam > 0);
3329
3330 if (editor->mode & TM_PLAINTEXT)
3331 return FALSE;
3332
3333 cf.cbSize = sizeof(cf);
3334 cf.dwMask = CFM_SIZE;
3335 ME_GetSelectionCharFormat(editor, &cf);
3336 tmp_size = (cf.yHeight / 20) + wParam;
3337
3338 if (tmp_size <= 1)
3339 size = 1;
3340 else if (tmp_size > 12 && tmp_size < 28 && tmp_size % 2)
3341 size = tmp_size + (is_increase ? 1 : -1);
3342 else if (tmp_size > 28 && tmp_size < 36)
3343 size = is_increase ? 36 : 28;
3344 else if (tmp_size > 36 && tmp_size < 48)
3345 size = is_increase ? 48 : 36;
3346 else if (tmp_size > 48 && tmp_size < 72)
3347 size = is_increase ? 72 : 48;
3348 else if (tmp_size > 72 && tmp_size < 80)
3349 size = is_increase ? 80 : 72;
3350 else if (tmp_size > 80 && tmp_size < 1638)
3351 size = 10 * (is_increase ? (tmp_size / 10 + 1) : (tmp_size / 10));
3352 else if (tmp_size >= 1638)
3353 size = 1638;
3354 else
3355 size = tmp_size;
3356
3357 cf.yHeight = size * 20; /* convert twips to points */
3358 ME_SetSelectionCharFormat(editor, &cf);
3359 ME_CommitUndo(editor);
3360 ME_WrapMarkedParagraphs(editor);
3361 ME_UpdateScrollBar(editor);
3362
3363 return TRUE;
3364 }
3365 case EM_SETSEL:
3366 {
3367 return set_selection( editor, wParam, lParam );
3368 }
3369 case EM_SETSCROLLPOS:
3370 {
3371 POINT *point = (POINT *)lParam;
3372 scroll_abs( editor, point->x, point->y, TRUE );
3373 return 0;
3374 }
3375 case EM_AUTOURLDETECT:
3376 {
3377 if (wParam==1 || wParam ==0)
3378 {
3379 editor->AutoURLDetect_bEnable = (BOOL)wParam;
3380 return 0;
3381 }
3382 return E_INVALIDARG;
3383 }
3384 case EM_GETAUTOURLDETECT:
3385 {
3386 return editor->AutoURLDetect_bEnable;
3387 }
3388 case EM_EXSETSEL:
3389 {
3390 CHARRANGE range = *(CHARRANGE *)lParam;
3391
3392 return set_selection( editor, range.cpMin, range.cpMax );
3393 }
3394 case EM_SETTEXTEX:
3395 {
3396 LPWSTR wszText;
3397 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
3398 int from, to, len;
3399 ME_Style *style;
3400 BOOL bRtf, bUnicode, bSelection, bUTF8;
3401 int oldModify = editor->nModifyStep;
3402 static const char utf8_bom[] = {0xef, 0xbb, 0xbf};
3403
3404 if (!pStruct) return 0;
3405
3406 /* If we detect ascii rtf at the start of the string,
3407 * we know it isn't unicode. */
3408 bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
3409 !strncmp((char *)lParam, "{\\urtf", 6)));
3410 bUnicode = !bRtf && pStruct->codepage == CP_UNICODE;
3411 bUTF8 = (lParam && (!strncmp((char *)lParam, utf8_bom, 3)));
3412
3413 TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
3414 bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
3415 pStruct->flags, pStruct->codepage);
3416
3417 bSelection = (pStruct->flags & ST_SELECTION) != 0;
3418 if (bSelection) {
3419 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3420 style = ME_GetSelectionInsertStyle(editor);
3421 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
3422 } else {
3423 ME_Cursor start;
3424 ME_SetCursorToStart(editor, &start);
3425 ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
3426 style = editor->pBuffer->pDefaultStyle;
3427 }
3428
3429 if (bRtf) {
3430 ME_StreamInRTFString(editor, bSelection, (char *)lParam);
3431 if (bSelection) {
3432 /* FIXME: The length returned doesn't include the rtf control
3433 * characters, only the actual text. */
3434 len = lParam ? strlen((char *)lParam) : 0;
3435 }
3436 } else {
3437 if (bUTF8 && !bUnicode) {
3438 wszText = ME_ToUnicode(CP_UTF8, (void *)(lParam+3), &len);
3439 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3440 ME_EndToUnicode(CP_UTF8, wszText);
3441 } else {
3442 wszText = ME_ToUnicode(pStruct->codepage, (void *)lParam, &len);
3443 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
3444 ME_EndToUnicode(pStruct->codepage, wszText);
3445 }
3446 }
3447
3448 if (bSelection) {
3449 ME_ReleaseStyle(style);
3450 ME_UpdateSelectionLinkAttribute(editor);
3451 } else {
3452 ME_Cursor cursor;
3453 len = 1;
3454 ME_SetCursorToStart(editor, &cursor);
3455 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3456 }
3457 ME_CommitUndo(editor);
3458 if (!(pStruct->flags & ST_KEEPUNDO))
3459 {
3460 editor->nModifyStep = oldModify;
3461 ME_EmptyUndoStack(editor);
3462 }
3463 ME_UpdateRepaint(editor, FALSE);
3464 return len;
3465 }
3466 case EM_SELECTIONTYPE:
3467 return ME_GetSelectionType(editor);
3468 case EM_GETMODIFY:
3469 return editor->nModifyStep == 0 ? 0 : -1;
3470 case EM_SETMODIFY:
3471 {
3472 if (wParam)
3473 editor->nModifyStep = 1;
3474 else
3475 editor->nModifyStep = 0;
3476
3477 return 0;
3478 }
3479 case EM_SETEVENTMASK:
3480 {
3481 DWORD nOldMask = editor->nEventMask;
3482
3483 editor->nEventMask = lParam;
3484 return nOldMask;
3485 }
3486 case EM_GETEVENTMASK:
3487 return editor->nEventMask;
3488 case EM_SETCHARFORMAT:
3489 return handle_EM_SETCHARFORMAT( editor, wParam, (CHARFORMAT2W *)lParam );
3490 case EM_GETCHARFORMAT:
3491 {
3492 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
3493 if (dst->cbSize != sizeof(CHARFORMATA) &&
3494 dst->cbSize != sizeof(CHARFORMATW) &&
3495 dst->cbSize != sizeof(CHARFORMAT2A) &&
3496 dst->cbSize != sizeof(CHARFORMAT2W))
3497 return 0;
3498 tmp.cbSize = sizeof(tmp);
3499 if (!wParam)
3500 ME_GetDefaultCharFormat(editor, &tmp);
3501 else
3502 ME_GetSelectionCharFormat(editor, &tmp);
3503 cf2w_to_cfany(dst, &tmp);
3504 return tmp.dwMask;
3505 }
3506 case EM_SETPARAFORMAT:
3507 {
3508 BOOL result = editor_set_selection_para_fmt( editor, (PARAFORMAT2 *)lParam );
3509 ME_WrapMarkedParagraphs(editor);
3510 ME_UpdateScrollBar(editor);
3511 ME_CommitUndo(editor);
3512 return result;
3513 }
3514 case EM_GETPARAFORMAT:
3515 editor_get_selection_para_fmt( editor, (PARAFORMAT2 *)lParam );
3516 return ((PARAFORMAT2 *)lParam)->dwMask;
3517 case EM_GETFIRSTVISIBLELINE:
3518 {
3519 ME_Paragraph *para = editor_first_para( editor );
3520 ME_Row *row;
3521 int y = editor->vert_si.nPos;
3522 int count = 0;
3523
3524 while (para_next( para ))
3525 {
3526 if (y < para->pt.y + para->nHeight) break;
3527 count += para->nRows;
3528 para = para_next( para );
3529 }
3530
3531 row = para_first_row( para );
3532 while (row)
3533 {
3534 if (y < para->pt.y + row->pt.y + row->nHeight) break;
3535 count++;
3536 row = row_next( row );
3537 }
3538 return count;
3539 }
3540 case EM_HIDESELECTION:
3541 {
3542 editor->bHideSelection = (wParam != 0);
3543 ME_InvalidateSelection(editor);
3544 return 0;
3545 }
3546 case EM_LINESCROLL:
3547 {
3548 if (!(editor->props & TXTBIT_MULTILINE))
3549 return FALSE;
3550 ME_ScrollDown( editor, lParam * get_default_line_height( editor ) );
3551 return TRUE;
3552 }
3553 case WM_CLEAR:
3554 {
3555 int from, to;
3556 int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
3557 ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
3558 ME_CommitUndo(editor);
3559 ME_UpdateRepaint(editor, TRUE);
3560 return 0;
3561 }
3562 case EM_REPLACESEL:
3563 {
3564 WCHAR *text = (WCHAR *)lParam;
3565 int len = text ? lstrlenW( text ) : 0;
3566
3567 TRACE( "EM_REPLACESEL - %s\n", debugstr_w( text ) );
3568 ME_ReplaceSel( editor, !!wParam, text, len );
3569 return len;
3570 }
3571 case EM_SCROLLCARET:
3572 editor_ensure_visible( editor, &editor->pCursors[0] );
3573 return 0;
3574 case WM_SETFONT:
3575 {
3576 LOGFONTW lf;
3577 CHARFORMAT2W fmt;
3578 HDC hDC;
3579 BOOL bRepaint = LOWORD(lParam);
3580
3581 if (!wParam)
3582 wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
3583
3584 if (!GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf))
3585 return 0;
3586
3587 hDC = ITextHost_TxGetDC(editor->texthost);
3588 ME_CharFormatFromLogFont(hDC, &lf, &fmt);
3589 ITextHost_TxReleaseDC(editor->texthost, hDC);
3590 if (editor->mode & TM_RICHTEXT) {
3591 ME_Cursor start;
3592 ME_SetCursorToStart(editor, &start);
3593 ME_SetCharFormat(editor, &start, NULL, &fmt);
3594 }
3595 ME_SetDefaultCharFormat(editor, &fmt);
3596
3597 ME_CommitUndo(editor);
3598 editor_mark_rewrap_all( editor );
3599 ME_WrapMarkedParagraphs(editor);
3600 ME_UpdateScrollBar(editor);
3601 if (bRepaint)
3602 ME_Repaint(editor);
3603 return 0;
3604 }
3605 case WM_SETTEXT:
3606 {
3607 ME_Cursor cursor;
3608 ME_SetCursorToStart(editor, &cursor);
3609 ME_InternalDeleteText(editor, &cursor, ME_GetTextLength(editor), FALSE);
3610 if (lParam)
3611 {
3612 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
3613 if (!strncmp((char *)lParam, "{\\rtf", 5) ||
3614 !strncmp((char *)lParam, "{\\urtf", 6))
3615 {
3616 /* Undocumented: WM_SETTEXT supports RTF text */
3617 ME_StreamInRTFString(editor, 0, (char *)lParam);
3618 }
3619 else
3620 ME_SetText( editor, (void*)lParam, TRUE );
3621 }
3622 else
3623 TRACE("WM_SETTEXT - NULL\n");
3624 ME_SetCursorToStart(editor, &cursor);
3625 ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
3626 set_selection_cursors(editor, 0, 0);
3627 editor->nModifyStep = 0;
3628 ME_CommitUndo(editor);
3629 ME_EmptyUndoStack(editor);
3630 ME_UpdateRepaint(editor, FALSE);
3631 return 1;
3632 }
3633 case EM_CANPASTE:
3634 return paste_special( editor, 0, NULL, TRUE );
3635 case WM_PASTE:
3636 case WM_MBUTTONDOWN:
3637 wParam = 0;
3638 lParam = 0;
3639 /* fall through */
3640 case EM_PASTESPECIAL:
3641 paste_special( editor, wParam, (REPASTESPECIAL *)lParam, FALSE );
3642 return 0;
3643 case WM_CUT:
3644 case WM_COPY:
3645 copy_or_cut(editor, msg == WM_CUT);
3646 return 0;
3647 case WM_GETTEXTLENGTH:
3648 {
3649 GETTEXTLENGTHEX how;
3650 how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
3651 how.codepage = CP_UNICODE;
3652 return ME_GetTextLengthEx(editor, &how);
3653 }
3654 case EM_GETTEXTLENGTHEX:
3655 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
3656 case WM_GETTEXT:
3657 {
3658 GETTEXTEX ex;
3659 ex.cb = wParam * sizeof(WCHAR);
3660 ex.flags = GT_USECRLF;
3661 ex.codepage = CP_UNICODE;
3662 ex.lpDefaultChar = NULL;
3663 ex.lpUsedDefChar = NULL;
3664 return ME_GetTextEx(editor, &ex, lParam);
3665 }
3666 case EM_GETTEXTEX:
3667 return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
3668 case EM_GETSELTEXT:
3669 {
3670 int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
3671 ME_Cursor *from = &editor->pCursors[nStartCur];
3672 return get_text_range( editor, (WCHAR *)lParam, from, nTo - nFrom );
3673 }
3674 case EM_GETSCROLLPOS:
3675 {
3676 POINT *point = (POINT *)lParam;
3677 point->x = editor->horz_si.nPos;
3678 point->y = editor->vert_si.nPos;
3679 /* 16-bit scaled value is returned as stored in scrollinfo */
3680 if (editor->horz_si.nMax > 0xffff)
3681 point->x = MulDiv(point->x, 0xffff, editor->horz_si.nMax);
3682 if (editor->vert_si.nMax > 0xffff)
3683 point->y = MulDiv(point->y, 0xffff, editor->vert_si.nMax);
3684 return 1;
3685 }
3686 case EM_GETTEXTRANGE:
3687 {
3688 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
3689 ME_Cursor start;
3690 int nStart = rng->chrg.cpMin;
3691 int nEnd = rng->chrg.cpMax;
3692 int textlength = ME_GetTextLength(editor);
3693
3694 TRACE( "EM_GETTEXTRANGE min = %d max = %d textlength = %d\n", rng->chrg.cpMin, rng->chrg.cpMax, textlength );
3695 if (nStart < 0) return 0;
3696 if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
3697 nEnd = textlength;
3698 if (nStart >= nEnd) return 0;
3699
3700 cursor_from_char_ofs( editor, nStart, &start );
3701 return get_text_range( editor, rng->lpstrText, &start, nEnd - nStart );
3702 }
3703 case EM_GETLINE:
3704 {
3705 ME_Row *row;
3706 ME_Run *run;
3707 const unsigned int nMaxChars = *(WORD *) lParam;
3708 unsigned int nCharsLeft = nMaxChars;
3709 char *dest = (char *) lParam;
3710 ME_Cursor start, end;
3711
3712 TRACE( "EM_GETLINE: row=%d, nMaxChars=%d\n", (int)wParam, nMaxChars );
3713
3714 row = row_from_row_number( editor, wParam );
3715 if (row == NULL) return 0;
3716
3717 row_first_cursor( row, &start );
3718 row_end_cursor( row, &end, TRUE );
3719 run = start.run;
3720 while (nCharsLeft)
3721 {
3722 WCHAR *str;
3723 unsigned int nCopy;
3724 int ofs = (run == start.run) ? start.nOffset : 0;
3725 int len = (run == end.run) ? end.nOffset : run->len;
3726
3727 str = get_text( run, ofs );
3728 nCopy = min( nCharsLeft, len );
3729
3730 memcpy(dest, str, nCopy * sizeof(WCHAR));
3731 dest += nCopy * sizeof(WCHAR);
3732 nCharsLeft -= nCopy;
3733 if (run == end.run) break;
3734 run = row_next_run( row, run );
3735 }
3736
3737 /* append line termination, space allowing */
3738 if (nCharsLeft > 0) *((WCHAR *)dest) = '\0';
3739
3740 TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
3741 return nMaxChars - nCharsLeft;
3742 }
3743 case EM_GETLINECOUNT:
3744 {
3745 int count = editor->total_rows;
3746 ME_Run *prev_run, *last_run;
3747
3748 last_run = para_end_run( para_prev( editor_end_para( editor ) ) );
3749 prev_run = run_prev_all_paras( last_run );
3750
3751 if (editor->bEmulateVersion10 && prev_run && last_run->nCharOfs == 0 &&
3752 prev_run->len == 1 && *get_text( prev_run, 0 ) == '\r')
3753 {
3754 /* In 1.0 emulation, the last solitary \r at the very end of the text
3755 (if one exists) is NOT a line break.
3756 FIXME: this is an ugly hack. This should have a more regular model. */
3757 count--;
3758 }
3759
3760 count = max(1, count);
3761 TRACE("EM_GETLINECOUNT: count==%d\n", count);
3762 return count;
3763 }
3764 case EM_LINEFROMCHAR:
3765 {
3766 if (wParam == -1) wParam = ME_GetCursorOfs( editor->pCursors + 1 );
3767 return row_number_from_char_ofs( editor, wParam );
3768 }
3769 case EM_EXLINEFROMCHAR:
3770 {
3771 if (lParam == -1) lParam = ME_GetCursorOfs( editor->pCursors + 1 );
3772 return row_number_from_char_ofs( editor, lParam );
3773 }
3774 case EM_LINEINDEX:
3775 {
3776 ME_Row *row;
3777 ME_Cursor cursor;
3778 int ofs;
3779
3780 if (wParam == -1) row = row_from_cursor( editor->pCursors );
3781 else row = row_from_row_number( editor, wParam );
3782 if (!row) return -1;
3783
3784 row_first_cursor( row, &cursor );
3785 ofs = ME_GetCursorOfs( &cursor );
3786 TRACE( "EM_LINEINDEX: nCharOfs==%d\n", ofs );
3787 return ofs;
3788 }
3789 case EM_LINELENGTH:
3790 {
3791 ME_Row *row;
3792 int start_ofs, end_ofs;
3793 ME_Cursor cursor;
3794
3795 if (wParam > ME_GetTextLength(editor))
3796 return 0;
3797 if (wParam == -1)
3798 {
3799 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
3800 return 0;
3801 }
3802 cursor_from_char_ofs( editor, wParam, &cursor );
3803 row = row_from_cursor( &cursor );
3804 row_first_cursor( row, &cursor );
3805 start_ofs = ME_GetCursorOfs( &cursor );
3806 row_end_cursor( row, &cursor, FALSE );
3807 end_ofs = ME_GetCursorOfs( &cursor );
3808 TRACE( "EM_LINELENGTH(%ld)==%d\n", wParam, end_ofs - start_ofs );
3809 return end_ofs - start_ofs;
3810 }
3811 case EM_EXLIMITTEXT:
3812 {
3813 if ((int)lParam < 0)
3814 return 0;
3815 if (lParam == 0)
3816 editor->nTextLimit = 65536;
3817 else
3818 editor->nTextLimit = (int) lParam;
3819 return 0;
3820 }
3821 case EM_LIMITTEXT:
3822 {
3823 if (wParam == 0)
3824 editor->nTextLimit = 65536;
3825 else
3826 editor->nTextLimit = (int) wParam;
3827 return 0;
3828 }
3829 case EM_GETLIMITTEXT:
3830 {
3831 return editor->nTextLimit;
3832 }
3833 case EM_FINDTEXT:
3834 case EM_FINDTEXTW:
3835 {
3836 FINDTEXTW *ft = (FINDTEXTW *)lParam;
3837 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
3838 }
3839 case EM_FINDTEXTEX:
3840 case EM_FINDTEXTEXW:
3841 {
3842 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
3843 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
3844 }
3845 case EM_GETZOOM:
3846 if (!wParam || !lParam)
3847 return FALSE;
3848 *(int *)wParam = editor->nZoomNumerator;
3849 *(int *)lParam = editor->nZoomDenominator;
3850 return TRUE;
3851 case EM_SETZOOM:
3852 return ME_SetZoom(editor, wParam, lParam);
3853 case EM_CHARFROMPOS:
3854 {
3855 ME_Cursor cursor;
3856 if (ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y,
3857 &cursor, NULL))
3858 return ME_GetCursorOfs(&cursor);
3859 else
3860 return -1;
3861 }
3862 case EM_POSFROMCHAR:
3863 {
3864 ME_Cursor cursor;
3865 int nCharOfs, nLength;
3866 POINTL pt = {0,0};
3867
3868 nCharOfs = wParam;
3869 /* detect which API version we're dealing with */
3870 if (wParam >= 0x40000)
3871 nCharOfs = lParam;
3872 nLength = ME_GetTextLength(editor);
3873 nCharOfs = min(nCharOfs, nLength);
3874 nCharOfs = max(nCharOfs, 0);
3875
3876 cursor_from_char_ofs( editor, nCharOfs, &cursor );
3877 pt.y = cursor.run->pt.y;
3878 pt.x = cursor.run->pt.x +
3879 ME_PointFromChar( editor, cursor.run, cursor.nOffset, TRUE );
3880 pt.y += cursor.para->pt.y + editor->rcFormat.top;
3881 pt.x += editor->rcFormat.left;
3882
3883 pt.x -= editor->horz_si.nPos;
3884 pt.y -= editor->vert_si.nPos;
3885
3886 if (wParam >= 0x40000) *(POINTL *)wParam = pt;
3887
3888 return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
3889 }
3890 case WM_LBUTTONDBLCLK:
3891 case WM_LBUTTONDOWN:
3892 {
3893 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3894 ITextHost_TxSetFocus(editor->texthost);
3895 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
3896 ME_CalculateClickCount(editor, msg, wParam, lParam));
3897 ITextHost_TxSetCapture(editor->texthost, TRUE);
3898 editor->bMouseCaptured = TRUE;
3899 link_notify( editor, msg, wParam, lParam );
3900 break;
3901 }
3902 case WM_MOUSEMOVE:
3903 if (editor->bMouseCaptured)
3904 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
3905 else
3906 link_notify( editor, msg, wParam, lParam );
3907 break;
3908 case WM_LBUTTONUP:
3909 if (editor->bMouseCaptured) {
3910 ITextHost_TxSetCapture(editor->texthost, FALSE);
3911 editor->bMouseCaptured = FALSE;
3912 }
3913 if (editor->nSelectionType == stDocument)
3914 editor->nSelectionType = stPosition;
3915 else
3916 {
3917 link_notify( editor, msg, wParam, lParam );
3918 }
3919 break;
3920 case WM_RBUTTONUP:
3921 case WM_RBUTTONDOWN:
3922 case WM_RBUTTONDBLCLK:
3923 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3924 link_notify( editor, msg, wParam, lParam );
3925 goto do_default;
3926 case WM_CONTEXTMENU:
3927 if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
3928 goto do_default;
3929 break;
3930 case WM_SETFOCUS:
3931 editor->bHaveFocus = TRUE;
3932 create_caret(editor);
3933 update_caret(editor);
3934 ITextHost_TxNotify( editor->texthost, EN_SETFOCUS, NULL );
3935 if (!editor->bHideSelection && (editor->props & TXTBIT_HIDESELECTION))
3936 ME_InvalidateSelection( editor );
3937 return 0;
3938 case WM_KILLFOCUS:
3939 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3940 editor->bHaveFocus = FALSE;
3941 editor->wheel_remain = 0;
3942 hide_caret(editor);
3943 DestroyCaret();
3944 ITextHost_TxNotify( editor->texthost, EN_KILLFOCUS, NULL );
3945 if (!editor->bHideSelection && (editor->props & TXTBIT_HIDESELECTION))
3946 ME_InvalidateSelection( editor );
3947 return 0;
3948 case WM_COMMAND:
3949 TRACE("editor wnd command = %d\n", LOWORD(wParam));
3950 return 0;
3951 case WM_KEYDOWN:
3952 if (ME_KeyDown(editor, LOWORD(wParam)))
3953 return 0;
3954 goto do_default;
3955 case WM_CHAR:
3956 return handle_wm_char( editor, wParam, lParam );
3957 case WM_UNICHAR:
3958 if (wParam == UNICODE_NOCHAR) return TRUE;
3959 if (wParam <= 0x000fffff)
3960 {
3961 if (wParam > 0xffff) /* convert to surrogates */
3962 {
3963 wParam -= 0x10000;
3964 handle_wm_char( editor, (wParam >> 10) + 0xd800, 0 );
3965 handle_wm_char( editor, (wParam & 0x03ff) + 0xdc00, 0 );
3966 }
3967 else
3968 handle_wm_char( editor, wParam, 0 );
3969 }
3970 return 0;
3971 case EM_STOPGROUPTYPING:
3972 ME_CommitUndo(editor); /* End coalesced undos for typed characters */
3973 return 0;
3974 case WM_HSCROLL:
3975 {
3976 const int scrollUnit = 7;
3977
3978 switch(LOWORD(wParam))
3979 {
3980 case SB_LEFT:
3981 scroll_abs( editor, 0, 0, TRUE );
3982 break;
3983 case SB_RIGHT:
3984 scroll_abs( editor, editor->horz_si.nMax - (int)editor->horz_si.nPage,
3985 editor->vert_si.nMax - (int)editor->vert_si.nPage, TRUE );
3986 break;
3987 case SB_LINELEFT:
3988 ME_ScrollLeft(editor, scrollUnit);
3989 break;
3990 case SB_LINERIGHT:
3991 ME_ScrollRight(editor, scrollUnit);
3992 break;
3993 case SB_PAGELEFT:
3994 ME_ScrollLeft(editor, editor->sizeWindow.cx);
3995 break;
3996 case SB_PAGERIGHT:
3997 ME_ScrollRight(editor, editor->sizeWindow.cx);
3998 break;
3999 case SB_THUMBTRACK:
4000 case SB_THUMBPOSITION:
4001 {
4002 int pos = HIWORD(wParam);
4003 if (editor->horz_si.nMax > 0xffff)
4004 pos = MulDiv(pos, editor->horz_si.nMax, 0xffff);
4005 scroll_h_abs( editor, pos, FALSE );
4006 break;
4007 }
4008 }
4009 break;
4010 }
4011 case EM_SCROLL: /* fall through */
4012 case WM_VSCROLL:
4013 {
4014 int origNPos;
4015 int lineHeight = get_default_line_height( editor );
4016
4017 origNPos = editor->vert_si.nPos;
4018
4019 switch(LOWORD(wParam))
4020 {
4021 case SB_TOP:
4022 scroll_abs( editor, 0, 0, TRUE );
4023 break;
4024 case SB_BOTTOM:
4025 scroll_abs( editor, editor->horz_si.nMax - (int)editor->horz_si.nPage,
4026 editor->vert_si.nMax - (int)editor->vert_si.nPage, TRUE );
4027 break;
4028 case SB_LINEUP:
4029 ME_ScrollUp(editor,lineHeight);
4030 break;
4031 case SB_LINEDOWN:
4032 ME_ScrollDown(editor,lineHeight);
4033 break;
4034 case SB_PAGEUP:
4035 ME_ScrollUp(editor,editor->sizeWindow.cy);
4036 break;
4037 case SB_PAGEDOWN:
4038 ME_ScrollDown(editor,editor->sizeWindow.cy);
4039 break;
4040 case SB_THUMBTRACK:
4041 case SB_THUMBPOSITION:
4042 {
4043 int pos = HIWORD(wParam);
4044 if (editor->vert_si.nMax > 0xffff)
4045 pos = MulDiv(pos, editor->vert_si.nMax, 0xffff);
4046 scroll_v_abs( editor, pos, FALSE );
4047 break;
4048 }
4049 }
4050 if (msg == EM_SCROLL)
4051 return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
4052 break;
4053 }
4054 case WM_MOUSEWHEEL:
4055 {
4056 int delta = GET_WHEEL_DELTA_WPARAM( wParam );
4057 BOOL ctrl_is_down = GetKeyState( VK_CONTROL ) & 0x8000;
4058
4059 /* if scrolling changes direction, ignore left overs */
4060 if ((delta < 0 && editor->wheel_remain < 0) ||
4061 (delta > 0 && editor->wheel_remain > 0))
4062 editor->wheel_remain += delta;
4063 else
4064 editor->wheel_remain = delta;
4065
4066 if (editor->wheel_remain)
4067 {
4068 if (ctrl_is_down) {
4069 int numerator;
4070 if (!editor->nZoomNumerator || !editor->nZoomDenominator)
4071 {
4072 numerator = 100;
4073 } else {
4074 numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
4075 }
4076 numerator += calc_wheel_change( &editor->wheel_remain, 10 );
4077 if (numerator >= 10 && numerator <= 500)
4078 ME_SetZoom(editor, numerator, 100);
4079 } else {
4080 UINT max_lines = 3;
4081 int lines = 0;
4082
4083 SystemParametersInfoW( SPI_GETWHEELSCROLLLINES, 0, &max_lines, 0 );
4084 if (max_lines)
4085 lines = calc_wheel_change( &editor->wheel_remain, (int)max_lines );
4086 if (lines)
4087 ME_ScrollDown( editor, -lines * get_default_line_height( editor ) );
4088 }
4089 }
4090 break;
4091 }
4092 case EM_REQUESTRESIZE:
4093 ME_SendRequestResize(editor, TRUE);
4094 return 0;
4095 /* IME messages to make richedit controls IME aware */
4096 case WM_IME_SETCONTEXT:
4097 case WM_IME_CONTROL:
4098 case WM_IME_SELECT:
4099 case WM_IME_COMPOSITIONFULL:
4100 return 0;
4101 case WM_IME_STARTCOMPOSITION:
4102 {
4103 editor->imeStartIndex=ME_GetCursorOfs(&editor->pCursors[0]);
4104 ME_DeleteSelection(editor);
4105 ME_CommitUndo(editor);
4106 ME_UpdateRepaint(editor, FALSE);
4107 return 0;
4108 }
4109 case WM_IME_COMPOSITION:
4110 {
4111 HIMC hIMC;
4112
4113 ME_Style *style = style_get_insert_style( editor, editor->pCursors );
4114 hIMC = ITextHost_TxImmGetContext(editor->texthost);
4115 ME_DeleteSelection(editor);
4116 ME_SaveTempStyle(editor, style);
4117 if (lParam & (GCS_RESULTSTR|GCS_COMPSTR))
4118 {
4119 LPWSTR lpCompStr = NULL;
4120 DWORD dwBufLen;
4121 DWORD dwIndex = lParam & GCS_RESULTSTR;
4122 if (!dwIndex)
4123 dwIndex = GCS_COMPSTR;
4124
4125 dwBufLen = ImmGetCompositionStringW(hIMC, dwIndex, NULL, 0);
4126 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
4127 ImmGetCompositionStringW(hIMC, dwIndex, lpCompStr, dwBufLen);
4128 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
4129 ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
4130 HeapFree(GetProcessHeap(), 0, lpCompStr);
4131
4132 if (dwIndex == GCS_COMPSTR)
4133 set_selection_cursors(editor,editor->imeStartIndex,
4134 editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
4135 }
4136 ME_ReleaseStyle(style);
4137 ME_CommitUndo(editor);
4138 ME_UpdateRepaint(editor, FALSE);
4139 return 0;
4140 }
4141 case WM_IME_ENDCOMPOSITION:
4142 {
4143 ME_DeleteSelection(editor);
4144 editor->imeStartIndex=-1;
4145 return 0;
4146 }
4147 case EM_GETOLEINTERFACE:
4148 IRichEditOle_AddRef( editor->richole );
4149 *(IRichEditOle **)lParam = editor->richole;
4150 return 1;
4151
4152 case EM_SETOLECALLBACK:
4153 if(editor->lpOleCallback)
4154 IRichEditOleCallback_Release(editor->lpOleCallback);
4155 editor->lpOleCallback = (IRichEditOleCallback*)lParam;
4156 if(editor->lpOleCallback)
4157 IRichEditOleCallback_AddRef(editor->lpOleCallback);
4158 return TRUE;
4159 case EM_GETWORDBREAKPROC:
4160 return (LRESULT)editor->pfnWordBreak;
4161 case EM_SETWORDBREAKPROC:
4162 {
4163 EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
4164
4165 editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
4166 return (LRESULT)pfnOld;
4167 }
4168 case EM_GETTEXTMODE:
4169 return editor->mode;
4170 case EM_SETTEXTMODE:
4171 {
4172 int mask = 0;
4173 int changes = 0;
4174
4175 if (ME_GetTextLength(editor) ||
4176 !list_empty( &editor->undo_stack ) || !list_empty( &editor->redo_stack ))
4177 return E_UNEXPECTED;
4178
4179 /* Check for mutually exclusive flags in adjacent bits of wParam */
4180 if ((wParam & (TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE)) &
4181 (wParam & (TM_PLAINTEXT | TM_SINGLELEVELUNDO | TM_SINGLECODEPAGE)) << 1)
4182 return E_INVALIDARG;
4183
4184 if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
4185 {
4186 mask |= TM_RICHTEXT | TM_PLAINTEXT;
4187 changes |= wParam & (TM_RICHTEXT | TM_PLAINTEXT);
4188 if (wParam & TM_PLAINTEXT) {
4189 /* Clear selection since it should be possible to select the
4190 * end of text run for rich text */
4191 ME_InvalidateSelection(editor);
4192 ME_SetCursorToStart(editor, &editor->pCursors[0]);
4193 editor->pCursors[1] = editor->pCursors[0];
4194 /* plain text can only have the default style. */
4195 ME_ClearTempStyle(editor);
4196 ME_AddRefStyle(editor->pBuffer->pDefaultStyle);
4197 ME_ReleaseStyle( editor->pCursors[0].run->style );
4198 editor->pCursors[0].run->style = editor->pBuffer->pDefaultStyle;
4199 }
4200 }
4201 /* FIXME: Currently no support for undo level and code page options */
4202 editor->mode = (editor->mode & ~mask) | changes;
4203 return 0;
4204 }
4205 case EM_SETTARGETDEVICE:
4206 if (wParam == 0)
4207 {
4208 BOOL new = (lParam == 0 && (editor->props & TXTBIT_MULTILINE));
4209 if (editor->nAvailWidth || editor->bWordWrap != new)
4210 {
4211 editor->bWordWrap = new;
4212 editor->nAvailWidth = 0; /* wrap to client area */
4213 ME_RewrapRepaint(editor);
4214 }
4215 } else {
4216 int width = max(0, lParam);
4217 if ((editor->props & TXTBIT_MULTILINE) &&
4218 (!editor->bWordWrap || editor->nAvailWidth != width))
4219 {
4220 editor->nAvailWidth = width;
4221 editor->bWordWrap = TRUE;
4222 ME_RewrapRepaint(editor);
4223 }
4224 FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
4225 }
4226 return TRUE;
4227 default:
4228 do_default:
4229 *phresult = S_FALSE;
4230 break;
4231 }
4232 return 0L;
4233 }
4234
4235 /* Fill buffer with srcChars unicode characters from the start cursor.
4236 *
4237 * buffer: destination buffer
4238 * buflen: length of buffer in characters excluding the NULL terminator.
4239 * start: start of editor text to copy into buffer.
4240 * srcChars: Number of characters to use from the editor text.
4241 * bCRLF: if true, replaces all end of lines with \r\n pairs.
4242 *
4243 * returns the number of characters written excluding the NULL terminator.
4244 *
4245 * The written text is always NULL terminated.
4246 */
4247 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
4248 const ME_Cursor *start, int srcChars, BOOL bCRLF,
4249 BOOL bEOP)
4250 {
4251 ME_Run *run, *next_run;
4252 const WCHAR *pStart = buffer;
4253 const WCHAR *str;
4254 int nLen;
4255
4256 /* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
4257 if (editor->bEmulateVersion10) bCRLF = FALSE;
4258
4259 run = start->run;
4260 next_run = run_next_all_paras( run );
4261
4262 nLen = run->len - start->nOffset;
4263 str = get_text( run, start->nOffset );
4264
4265 while (srcChars && buflen && next_run)
4266 {
4267 if (bCRLF && run->nFlags & MERF_ENDPARA && ~run->nFlags & MERF_ENDCELL)
4268 {
4269 if (buflen == 1) break;
4270 /* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
4271 * EM_GETTEXTEX, however, this is done for copying text which
4272 * also uses this function. */
4273 srcChars -= min(nLen, srcChars);
4274 nLen = 2;
4275 str = L"\r\n";
4276 }
4277 else
4278 {
4279 nLen = min(nLen, srcChars);
4280 srcChars -= nLen;
4281 }
4282
4283 nLen = min(nLen, buflen);
4284 buflen -= nLen;
4285
4286 CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
4287
4288 buffer += nLen;
4289
4290 run = next_run;
4291 next_run = run_next_all_paras( run );
4292
4293 nLen = run->len;
4294 str = get_text( run, 0 );
4295 }
4296 /* append '\r' to the last paragraph. */
4297 if (run == para_end_run( para_prev( editor_end_para( editor ) ) ) && bEOP)
4298 {
4299 *buffer = '\r';
4300 buffer ++;
4301 }
4302 *buffer = 0;
4303 return buffer - pStart;
4304 }
4305
4306 static int __cdecl wchar_comp( const void *key, const void *elem )
4307 {
4308 return *(const WCHAR *)key - *(const WCHAR *)elem;
4309 }
4310
4311 /* neutral characters end the url if the next non-neutral character is a space character,
4312 otherwise they are included in the url. */
4313 static BOOL isurlneutral( WCHAR c )
4314 {
4315 /* NB this list is sorted */
4316 static const WCHAR neutral_chars[] = L"!\"'(),-.:;<>?[]{}";
4317
4318 /* Some shortcuts */
4319 if (isalnum( c )) return FALSE;
4320 if (c > L'}') return FALSE;
4321
4322 return !!bsearch( &c, neutral_chars, ARRAY_SIZE( neutral_chars ) - 1, sizeof(c), wchar_comp );
4323 }
4324
4325 /**
4326 * This proc takes a selection, and scans it forward in order to select the span
4327 * of a possible URL candidate. A possible URL candidate must start with isalnum
4328 * or one of the following special characters: *|/\+%#@ and must consist entirely
4329 * of the characters allowed to start the URL, plus : (colon) which may occur
4330 * at most once, and not at either end.
4331 */
4332 static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
4333 const ME_Cursor *start,
4334 int nChars,
4335 ME_Cursor *candidate_min,
4336 ME_Cursor *candidate_max)
4337 {
4338 ME_Cursor cursor = *start, neutral_end, space_end;
4339 BOOL candidateStarted = FALSE, quoted = FALSE;
4340 WCHAR c;
4341
4342 while (nChars > 0)
4343 {
4344 WCHAR *str = get_text( cursor.run, 0 );
4345 int run_len = cursor.run->len;
4346
4347 nChars -= run_len - cursor.nOffset;
4348
4349 /* Find start of candidate */
4350 if (!candidateStarted)
4351 {
4352 while (cursor.nOffset < run_len)
4353 {
4354 c = str[cursor.nOffset];
4355 if (!iswspace( c ) && !isurlneutral( c ))
4356 {
4357 *candidate_min = cursor;
4358 candidateStarted = TRUE;
4359 neutral_end.para = NULL;
4360 space_end.para = NULL;
4361 cursor.nOffset++;
4362 break;
4363 }
4364 quoted = (c == '<');
4365 cursor.nOffset++;
4366 }
4367 }
4368
4369 /* Find end of candidate */
4370 if (candidateStarted)
4371 {
4372 while (cursor.nOffset < run_len)
4373 {
4374 c = str[cursor.nOffset];
4375 if (iswspace( c ))
4376 {
4377 if (quoted && c != '\r')
4378 {
4379 if (!space_end.para)
4380 {
4381 if (neutral_end.para)
4382 space_end = neutral_end;
4383 else
4384 space_end = cursor;
4385 }
4386 }
4387 else
4388 goto done;
4389 }
4390 else if (isurlneutral( c ))
4391 {
4392 if (quoted && c == '>')
4393 {
4394 neutral_end.para = NULL;
4395 space_end.para = NULL;
4396 goto done;
4397 }
4398 if (!neutral_end.para)
4399 neutral_end = cursor;
4400 }
4401 else
4402 neutral_end.para = NULL;
4403
4404 cursor.nOffset++;
4405 }
4406 }
4407
4408 cursor.nOffset = 0;
4409 if (!cursor_next_run( &cursor, TRUE ))
4410 goto done;
4411 }
4412
4413 done:
4414 if (candidateStarted)
4415 {
4416 if (space_end.para)
4417 *candidate_max = space_end;
4418 else if (neutral_end.para)
4419 *candidate_max = neutral_end;
4420 else
4421 *candidate_max = cursor;
4422 return TRUE;
4423 }
4424 *candidate_max = *candidate_min = cursor;
4425 return FALSE;
4426 }
4427
4428 /**
4429 * This proc evaluates the selection and returns TRUE if it can be considered an URL
4430 */
4431 static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
4432 {
4433 #define MAX_PREFIX_LEN 9
4434 #define X(str) str, ARRAY_SIZE(str) - 1
4435 struct prefix_s {
4436 const WCHAR text[MAX_PREFIX_LEN];
4437 int length;
4438 }prefixes[] = {
4439 {X(L"prospero:")},
4440 {X(L"telnet:")},
4441 {X(L"gopher:")},
4442 {X(L"mailto:")},
4443 {X(L"https:")},
4444 {X(L"file:")},
4445 {X(L"news:")},
4446 {X(L"wais:")},
4447 {X(L"nntp:")},
4448 {X(L"http:")},
4449 {X(L"www.")},
4450 {X(L"ftp:")},
4451 };
4452 #undef X
4453 WCHAR bufferW[MAX_PREFIX_LEN + 1];
4454 unsigned int i;
4455
4456 ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, FALSE, FALSE);
4457 for (i = 0; i < ARRAY_SIZE(prefixes); i++)
4458 {
4459 if (nChars < prefixes[i].length) continue;
4460 if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
4461 return TRUE;
4462 }
4463 return FALSE;
4464 #undef MAX_PREFIX_LEN
4465 }
4466
4467 /**
4468 * This proc walks through the indicated selection and evaluates whether each
4469 * section identified by ME_FindNextURLCandidate and in-between sections have
4470 * their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
4471 * not what it is supposed to be, this proc sets or unsets it as appropriate.
4472 *
4473 * Since this function can cause runs to be split, do not depend on the value
4474 * of the start cursor at the end of the function.
4475 *
4476 * nChars may be set to INT_MAX to update to the end of the text.
4477 *
4478 * Returns TRUE if at least one section was modified.
4479 */
4480 static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
4481 {
4482 BOOL modified = FALSE;
4483 ME_Cursor startCur = *start;
4484
4485 if (!editor->AutoURLDetect_bEnable) return FALSE;
4486
4487 do
4488 {
4489 CHARFORMAT2W link;
4490 ME_Cursor candidateStart, candidateEnd;
4491
4492 if (ME_FindNextURLCandidate(editor, &startCur, nChars,
4493 &candidateStart, &candidateEnd))
4494 {
4495 /* Section before candidate is not an URL */
4496 int cMin = ME_GetCursorOfs(&candidateStart);
4497 int cMax = ME_GetCursorOfs(&candidateEnd);
4498
4499 if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
4500 candidateStart = candidateEnd;
4501 nChars -= cMax - ME_GetCursorOfs(&startCur);
4502 }
4503 else
4504 {
4505 /* No more candidates until end of selection */
4506 nChars = 0;
4507 }
4508
4509 if (startCur.run != candidateStart.run ||
4510 startCur.nOffset != candidateStart.nOffset)
4511 {
4512 /* CFE_LINK effect should be consistently unset */
4513 link.cbSize = sizeof(link);
4514 ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
4515 if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
4516 {
4517 /* CFE_LINK must be unset from this range */
4518 memset(&link, 0, sizeof(CHARFORMAT2W));
4519 link.cbSize = sizeof(link);
4520 link.dwMask = CFM_LINK;
4521 link.dwEffects = 0;
4522 ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
4523 /* Update candidateEnd since setting character formats may split
4524 * runs, which can cause a cursor to be at an invalid offset within
4525 * a split run. */
4526 while (candidateEnd.nOffset >= candidateEnd.run->len)
4527 {
4528 candidateEnd.nOffset -= candidateEnd.run->len;
4529 candidateEnd.run = run_next_all_paras( candidateEnd.run );
4530 }
4531 modified = TRUE;
4532 }
4533 }
4534 if (candidateStart.run != candidateEnd.run ||
4535 candidateStart.nOffset != candidateEnd.nOffset)
4536 {
4537 /* CFE_LINK effect should be consistently set */
4538 link.cbSize = sizeof(link);
4539 ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4540 if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
4541 {
4542 /* CFE_LINK must be set on this range */
4543 memset(&link, 0, sizeof(CHARFORMAT2W));
4544 link.cbSize = sizeof(link);
4545 link.dwMask = CFM_LINK;
4546 link.dwEffects = CFE_LINK;
4547 ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
4548 modified = TRUE;
4549 }
4550 }
4551 startCur = candidateEnd;
4552 } while (nChars > 0);
4553 return modified;
4554 }
Windows API implementation