2 * RichEdit - functions dealing with editor object
4 * Copyright 2004 by Krzysztof Foltman
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 API implementation status:
24 Messages (ANSI versions not done yet)
25 - EM_AUTOURLDETECT 2.0
41 - EM_GETCHARFORMAT (partly done)
43 - EM_GETFIRSTVISIBLELINE
44 - EM_GETIMECOLOR 1.0asian
45 - EM_GETIMECOMPMODE 2.0
46 - EM_GETIMEOPTIONS 1.0asian
48 - EM_GETLANGOPTIONS 2.0
51 - EM_GETLINECOUNT returns number of rows, not of paragraphs
56 - EM_GETPUNCTUATION 1.0asian
60 + EM_GETSELTEXT (ANSI&Unicode)
63 ? + EM_GETTEXTRANGE (ANSI&Unicode)
66 - EM_GETWORDBREAKPROCEX
67 - EM_GETWORDWRAPMODE 1.0asian
78 + EM_REPLACESEL (proper style?) ANSI&Unicode
83 - EM_SETCHARFORMAT (partly done, no ANSI)
84 + EM_SETEVENTMASK (few notifications supported)
85 - EM_SETIMECOLOR 1.0asian
86 - EM_SETIMEOPTIONS 1.0asian
87 - EM_SETLANGOPTIONS 2.0
89 + EM_SETMODIFY (not sure if implementation is correct)
93 - EM_SETPUNCTUATION 1.0asian
94 + EM_SETREADONLY no beep on modification attempt
96 - EM_SETRECTNP (EM_SETRECT without repainting) - not supported in RICHEDIT
100 - EM_SETUNDOLIMIT 2.0
101 - EM_SETWORDBREAKPROC
102 - EM_SETWORDBREAKPROCEX
103 - EM_SETWORDWRAPMODE 1.0asian
104 - EM_STOPGROUPTYPING 2.0
112 + WM_GETDLGCODE (the current implementation is incomplete)
113 + WM_GETTEXT (ANSI&Unicode)
114 + WM_GETTEXTLENGTH (ANSI version sucks)
117 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
119 - WM_STYLECHANGED (things like read-only flag)
124 * EN_CHANGE (sent from the wrong place)
141 * EN_UPDATE (sent from the wrong place)
149 - ES_DISABLENOSCROLL (scrollbar is always visible)
150 - ES_EX_NOCALLOLEINIT
152 - ES_MULTILINE (currently single line controls aren't supported)
154 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
160 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
167 * RICHED20 TODO (incomplete):
170 * - add remaining CHARFORMAT/PARAFORMAT fields
171 * - right/center align should strip spaces from the beginning
172 * - more advanced navigation (Ctrl-arrows, PageUp/PageDn)
174 * - pictures (not just smiling faces that lack API support ;-) )
176 * - calculate heights of pictures (half-done)
177 * - EM_STREAMIN/EM_STREAMOUT
178 * - horizontal scrolling (not even started)
179 * - fix scrollbars and refresh (it sucks bigtime)
180 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
181 * - should remember maximum row width for wrap hysteresis
183 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
184 * - italic cursor with italic fonts
186 * - most notifications aren't sent at all (the most important ones are)
187 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
188 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
189 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
190 * - bugs in end-of-text handling (the gray bar) could get me in jail ;-)
191 * - determination of row size
192 * - end-of-paragraph marks should be of reasonable size
194 * Bugs that are probably fixed, but not so easy to verify:
195 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
196 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
197 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
198 * - caret shouldn't be displayed when selection isn't empty
199 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
200 * - undo for setting default format (done, might be buggy)
201 * - styles might be not released properly (looks like they work like charm, but who knows?
209 #define NO_SHLWAPI_STREAM
214 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
217 HANDLE me_heap = NULL;
219 ME_TextBuffer *ME_MakeText() {
221 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
223 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
224 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
230 p1->member.para.next_para = p2;
231 p2->member.para.prev_para = p1;
232 p2->member.para.nCharOfs = 0;
236 buf->pCharStyle = NULL;
241 #define STREAMIN_BUFFER_SIZE 4096 /* M$ compatibility */
243 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, EDITSTREAM *stream, ME_Style *style)
245 BYTE buffer[STREAMIN_BUFFER_SIZE+1];
246 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
248 TRACE("%08lx %p\n", dwFormat, stream);
252 long nDataSize = 0, nWideChars = 0;
253 stream->dwError = stream->pfnCallback(stream->dwCookie,
254 (dwFormat & SF_UNICODE ? (BYTE *)wszText : buffer),
255 STREAMIN_BUFFER_SIZE, &nDataSize);
262 if (!(dwFormat & SF_UNICODE))
264 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
265 nWideChars = MultiByteToWideChar(CP_ACP, 0, buffer, nDataSize, wszText, STREAMIN_BUFFER_SIZE);
268 nWideChars = nDataSize>>1;
269 ME_InsertTextFromCursor(editor, 0, wszText, nWideChars, style);
270 if (nDataSize<STREAMIN_BUFFER_SIZE)
273 ME_CommitUndo(editor);
278 void ME_RTFCharAttrHook(RTF_Info *info)
281 fmt.cbSize = sizeof(fmt);
284 switch(info->rtfMinor)
287 /* FIXME add more flags once they're implemented */
288 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
289 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
290 fmt.yHeight = 12*20; /* 12pt */
294 fmt.dwMask = CFM_BOLD;
295 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
298 fmt.dwMask = CFM_ITALIC;
299 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
302 fmt.dwMask = CFM_UNDERLINE;
303 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
306 fmt.dwMask = CFM_STRIKEOUT;
307 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
310 fmt.dwMask = CFM_BACKCOLOR;
312 if (info->rtfParam == 0)
313 fmt.dwEffects = CFE_AUTOBACKCOLOR;
314 else if (info->rtfParam != rtfNoParam)
316 RTFColor *c = RTFGetColor(info, info->rtfParam);
317 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
321 fmt.dwMask = CFM_COLOR;
323 if (info->rtfParam == 0)
324 fmt.dwEffects = CFE_AUTOCOLOR;
325 else if (info->rtfParam != rtfNoParam)
327 RTFColor *c = RTFGetColor(info, info->rtfParam);
328 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
332 if (info->rtfParam != rtfNoParam)
334 RTFFont *f = RTFGetFont(info, info->rtfParam);
337 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
338 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
339 fmt.bCharSet = f->rtfFCharSet;
340 fmt.dwMask = CFM_FACE | CFM_CHARSET;
345 fmt.dwMask = CFM_SIZE;
346 if (info->rtfParam != rtfNoParam)
347 fmt.yHeight = info->rtfParam*10;
352 RTFFlushOutputBuffer(info);
353 /* FIXME too slow ? how come ? */
354 style2 = ME_ApplyStyle(info->style, &fmt);
355 ME_ReleaseStyle(info->style);
356 info->style = style2;
360 void ME_RTFParAttrHook(RTF_Info *info)
363 fmt.cbSize = sizeof(fmt);
366 switch(info->rtfMinor)
368 case rtfParDef: /* I'm not 100% sure what does it do, but I guess it restores default paragraph attributes */
369 fmt.dwMask = PFM_ALIGNMENT;
370 fmt.wAlignment = PFA_LEFT;
374 fmt.dwMask = PFM_ALIGNMENT;
375 fmt.wAlignment = PFA_LEFT;
378 fmt.dwMask = PFM_ALIGNMENT;
379 fmt.wAlignment = PFA_RIGHT;
382 fmt.dwMask = PFM_ALIGNMENT;
383 fmt.wAlignment = PFA_CENTER;
387 RTFFlushOutputBuffer(info);
388 /* FIXME too slow ? how come ?*/
389 ME_SetSelectionParaFormat(info->editor, &fmt);
393 void ME_RTFReadHook(RTF_Info *info) {
394 switch(info->rtfClass)
397 switch(info->rtfMajor)
400 if (info->stackTop < maxStack) {
401 memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
402 info->stack[info->stackTop].codePage = info->codePage;
403 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
410 RTFFlushOutputBuffer(info);
412 /* FIXME too slow ? how come ? */
413 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
414 ME_ReleaseStyle(info->style);
416 info->codePage = info->stack[info->stackTop].codePage;
417 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
423 switch(info->rtfMajor)
426 ME_RTFCharAttrHook(info);
429 ME_RTFParAttrHook(info);
436 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
440 int from, to, to2, nUndoMode;
442 int nEventMask = editor->nEventMask;
444 TRACE("%p %p\n", stream, editor->hWnd);
445 editor->nEventMask = 0;
447 ME_GetSelection(editor, &from, &to);
448 if (format & SFF_SELECTION) {
449 style = ME_GetSelectionInsertStyle(editor);
451 ME_InternalDeleteText(editor, from, to-from);
454 style = editor->pBuffer->pDefaultStyle;
455 ME_AddRefStyle(style);
456 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
457 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
459 ME_ClearTempStyle(editor);
460 /* FIXME restore default paragraph formatting ! */
463 nUndoMode = editor->nUndoMode;
464 editor->nUndoMode = umIgnore;
465 if (format & SF_RTF) {
466 /* setup the RTF parser */
467 memset(&parser, 0, sizeof parser);
468 RTFSetEditStream(&parser, stream);
469 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
470 parser.hwndEdit = editor->hWnd;
471 parser.editor = editor;
472 parser.style = style;
475 RTFSetReadHook(&parser, ME_RTFReadHook);
480 RTFFlushOutputBuffer(&parser);
483 style = parser.style;
485 else if (format & SF_TEXT)
486 ME_StreamInText(editor, format, stream, style);
488 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
489 ME_GetSelection(editor, &to, &to2);
490 /* put the cursor at the top */
491 if (!(format & SFF_SELECTION))
492 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
495 /* FIXME where to put cursor now ? */
498 editor->nUndoMode = nUndoMode;
499 pUI = ME_AddUndoItem(editor, diUndoDeleteRun, NULL);
500 TRACE("from %d to %d\n", from, to);
501 if (pUI && from < to)
506 ME_CommitUndo(editor);
507 ME_ReleaseStyle(style);
508 editor->nEventMask = nEventMask;
509 InvalidateRect(editor->hWnd, NULL, TRUE);
510 ME_UpdateRepaint(editor);
511 if (!(format & SFF_SELECTION)) {
512 ME_ClearTempStyle(editor);
514 ME_MoveCaret(editor);
515 ME_SendSelChange(editor);
522 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
524 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
526 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
527 item = ME_FindItemFwd(item, diParagraph);
532 nOffset -= item->member.para.nCharOfs;
533 if (nItemType == diParagraph) {
535 *nItemOffset = nOffset;
540 item = ME_FindItemFwd(item, diRun);
541 } while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
543 nOffset -= item->member.run.nCharOfs;
545 *nItemOffset = nOffset;
551 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
552 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
556 ed->pBuffer = ME_MakeText();
558 ME_MakeFirstParagraph(hDC, ed->pBuffer);
559 ReleaseDC(hWnd, hDC);
560 ed->bCaretShown = FALSE;
562 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
563 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
564 ed->pCursors[0].nOffset = 0;
565 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
566 ed->pCursors[1].nOffset = 0;
567 ed->nLastTotalLength = ed->nTotalLength = 0;
570 ed->rgbBackColor = -1;
571 ed->bCaretAtEnd = FALSE;
574 ed->pUndoStack = ed->pRedoStack = NULL;
575 ed->nUndoMode = umAddToUndo;
577 ed->nLastSelStart = ed->nLastSelEnd = 0;
579 for (i=0; i<HFONT_CACHE_SIZE; i++)
581 ed->pFontCache[i].nRefs = 0;
582 ed->pFontCache[i].nAge = 0;
583 ed->pFontCache[i].hFont = NULL;
585 ME_CheckCharOffsets(ed);
589 typedef struct tagME_GlobalDestStruct
593 } ME_GlobalDestStruct;
595 static DWORD CALLBACK ME_AppendToHGLOBAL(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
597 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
601 nMaxSize = GlobalSize(pData->hData);
602 if (pData->nLength+cb+1 >= cb)
604 /* round up to 2^17 */
605 int nNewSize = (((nMaxSize+cb+1)|0x1FFFF)+1) & 0xFFFE0000;
606 pData->hData = GlobalReAlloc(pData->hData, nNewSize, 0);
608 pDest = (BYTE *)GlobalLock(pData->hData);
609 memcpy(pDest + pData->nLength, lpBuff, cb);
610 pData->nLength += cb;
611 pDest[pData->nLength] = '\0';
612 GlobalUnlock(pData->hData);
618 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
620 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
625 pDest = (WORD *)lpBuff;
626 pSrc = (WORD *)GlobalLock(pData->hData);
627 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
628 pDest[i] = pSrc[pData->nLength+i];
632 GlobalUnlock(pData->hData);
636 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
638 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
643 pSrc = (BYTE *)GlobalLock(pData->hData);
644 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
645 pDest[i] = pSrc[pData->nLength+i];
649 GlobalUnlock(pData->hData);
653 void ME_DestroyEditor(ME_TextEditor *editor)
655 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
656 ME_DisplayItem *p = pFirst, *pNext = NULL;
659 ME_ClearTempStyle(editor);
660 ME_EmptyUndoStack(editor);
663 ME_DestroyDisplayItem(p);
666 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
667 for (i=0; i<HFONT_CACHE_SIZE; i++)
669 if (editor->pFontCache[i].hFont)
670 DeleteObject(editor->pFontCache[i].hFont);
676 #define UNSUPPORTED_MSG(e) \
678 FIXME(#e ": stub\n"); \
679 return DefWindowProcW(hWnd, msg, wParam, lParam);
681 /******************************************************************
682 * RichEditANSIWndProc (RICHED20.10)
684 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
688 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
689 TRACE("msg %d %08x %08lx\n", msg, wParam, lParam);
692 UNSUPPORTED_MSG(EM_AUTOURLDETECT)
693 UNSUPPORTED_MSG(EM_CANPASTE)
694 UNSUPPORTED_MSG(EM_CHARFROMPOS)
695 UNSUPPORTED_MSG(EM_DISPLAYBAND)
696 UNSUPPORTED_MSG(EM_EXLIMITTEXT)
697 UNSUPPORTED_MSG(EM_EXLINEFROMCHAR)
698 UNSUPPORTED_MSG(EM_FINDTEXT)
699 UNSUPPORTED_MSG(EM_FINDTEXTEX)
700 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
701 UNSUPPORTED_MSG(EM_FMTLINES)
702 UNSUPPORTED_MSG(EM_FORMATRANGE)
703 UNSUPPORTED_MSG(EM_GETFIRSTVISIBLELINE)
704 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
705 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
706 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
707 UNSUPPORTED_MSG(EM_GETLIMITTEXT)
708 UNSUPPORTED_MSG(EM_GETLINE)
709 UNSUPPORTED_MSG(EM_GETLINECOUNT)
710 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
711 UNSUPPORTED_MSG(EM_GETOPTIONS)
712 UNSUPPORTED_MSG(EM_GETRECT)
713 UNSUPPORTED_MSG(EM_GETREDONAME)
714 UNSUPPORTED_MSG(EM_GETTEXTMODE)
715 UNSUPPORTED_MSG(EM_GETUNDONAME)
716 UNSUPPORTED_MSG(EM_GETWORDBREAKPROC)
717 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
718 UNSUPPORTED_MSG(EM_HIDESELECTION)
719 UNSUPPORTED_MSG(EM_LIMITTEXT) /* also known as EM_SETLIMITTEXT */
720 UNSUPPORTED_MSG(EM_LINEFROMCHAR)
721 UNSUPPORTED_MSG(EM_LINEINDEX)
722 UNSUPPORTED_MSG(EM_LINELENGTH)
723 UNSUPPORTED_MSG(EM_LINESCROLL)
724 UNSUPPORTED_MSG(EM_PASTESPECIAL)
725 /* UNSUPPORTED_MSG(EM_POSFROMCHARS) missing in Wine headers */
726 UNSUPPORTED_MSG(EM_REQUESTRESIZE)
727 UNSUPPORTED_MSG(EM_SCROLL)
728 UNSUPPORTED_MSG(EM_SCROLLCARET)
729 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
730 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
731 UNSUPPORTED_MSG(EM_SETOLECALLBACK)
732 UNSUPPORTED_MSG(EM_SETOPTIONS)
733 UNSUPPORTED_MSG(EM_SETRECT)
734 UNSUPPORTED_MSG(EM_SETRECTNP)
735 UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
736 UNSUPPORTED_MSG(EM_SETTEXTMODE)
737 UNSUPPORTED_MSG(EM_SETUNDOLIMIT)
738 UNSUPPORTED_MSG(EM_SETWORDBREAKPROC)
739 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
740 UNSUPPORTED_MSG(WM_SETFONT)
741 UNSUPPORTED_MSG(WM_STYLECHANGING)
742 UNSUPPORTED_MSG(WM_STYLECHANGED)
743 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
745 /* Messages specific to Richedit controls */
748 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam);
750 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
753 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
754 if (GetWindowLongW(hWnd, GWL_STYLE)&ES_WANTRETURN)
755 code |= 0; /* FIXME what can we do here ? ask for messages and censor them ? */
760 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
761 editor = ME_MakeEditor(hWnd);
762 SetWindowLongW(hWnd, 0, (long)editor);
763 pcs = 0; /* ignore */
766 case EM_EMPTYUNDOBUFFER:
767 ME_EmptyUndoStack(editor);
771 ME_GetSelection(editor, (int *)wParam, (int *)lParam);
772 if (!((wParam|lParam) & 0xFFFF0000))
773 return (lParam<<16)|wParam;
778 CHARRANGE *pRange = (CHARRANGE *)lParam;
779 ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
783 return editor->pUndoStack != NULL;
785 return editor->pRedoStack != NULL;
794 ME_SetSelection(editor, wParam, lParam);
796 ME_SendSelChange(editor);
801 CHARRANGE *pRange = (CHARRANGE *)lParam;
802 ME_SetSelection(editor, pRange->cpMin, pRange->cpMax);
805 ME_SendSelChange(editor);
808 case EM_SETBKGNDCOLOR:
810 LRESULT lColor = ME_GetBackColor(editor);
812 editor->rgbBackColor = -1;
814 editor->rgbBackColor = lParam;
815 InvalidateRect(hWnd, NULL, TRUE);
820 return editor->nModifyStep == 0 ? 0 : 1;
824 editor->nModifyStep = 0x80000000;
826 editor->nModifyStep = 0;
832 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
834 nStyle |= ES_READONLY;
836 nStyle &= ~ES_READONLY;
837 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
841 case EM_SETEVENTMASK:
842 editor->nEventMask = lParam;
844 case EM_GETEVENTMASK:
845 return editor->nEventMask;
846 case EM_SETCHARFORMAT:
848 CHARFORMAT2W buf, *p;
849 BOOL bRepaint = TRUE;
850 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
852 ME_SetDefaultCharFormat(editor, p);
853 else if (wParam == (SCF_WORD | SCF_SELECTION))
854 FIXME("word selection not supported\n");
855 else if (wParam == SCF_ALL)
856 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
859 ME_GetSelection(editor, &from, &to);
860 bRepaint = (from != to);
861 ME_SetSelectionCharFormat(editor, p);
863 ME_CommitUndo(editor);
865 ME_UpdateRepaint(editor);
868 case EM_GETCHARFORMAT:
871 tmp.cbSize = sizeof(tmp);
873 ME_GetDefaultCharFormat(editor, &tmp);
875 ME_GetSelectionCharFormat(editor, &tmp);
876 ME_CopyToCFAny((CHARFORMAT2W *)lParam, &tmp);
879 case EM_SETPARAFORMAT:
880 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
881 ME_UpdateRepaint(editor);
882 ME_CommitUndo(editor);
884 case EM_GETPARAFORMAT:
885 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
890 ME_GetSelection(editor, &from, &to);
891 ME_InternalDeleteText(editor, from, to-from);
892 ME_CommitUndo(editor);
893 ME_UpdateRepaint(editor);
900 LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
901 size_t len = lstrlenW(wszText);
902 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
904 ME_GetSelection(editor, &from, &to);
905 style = ME_GetSelectionInsertStyle(editor);
906 ME_InternalDeleteText(editor, from, to-from);
907 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
908 ME_ReleaseStyle(style);
909 ME_EndToUnicode(hWnd, wszText);
910 /* drop temporary style if line end */
911 /* FIXME question: does abc\n mean: put abc, clear temp style, put \n? (would require a change) */
912 if (len>0 && wszText[len-1] == '\n')
913 ME_ClearTempStyle(editor);
915 ME_CommitUndo(editor);
917 ME_EmptyUndoStack(editor);
918 ME_UpdateRepaint(editor);
923 LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
924 TRACE("WM_SETTEXT - %s\n", (char *)(wszText)); /* debugstr_w() */
925 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
926 /* uses default style! */
927 ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
928 ME_EndToUnicode(hWnd, wszText);
929 ME_CommitUndo(editor);
930 ME_EmptyUndoStack(editor);
931 ME_UpdateRepaint(editor);
938 ME_GlobalDestStruct gds;
939 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
942 if (!OpenClipboard(hWnd))
944 if (IsClipboardFormatAvailable(nRTFFormat))
945 cf = nRTFFormat, dwFormat = SF_RTF;
946 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
947 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
951 gds.hData = GetClipboardData(cf);
953 es.dwCookie = (DWORD)&gds;
954 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
955 SendMessageW(hWnd, EM_STREAMIN, dwFormat|SFF_SELECTION, (LPARAM)&es);
967 ME_GlobalDestStruct gds;
969 if (!OpenClipboard(hWnd))
973 ME_GetSelection(editor, &from, &to);
974 pars = ME_CountParagraphsBetween(editor, from, to);
975 hData = GlobalAlloc(GMEM_MOVEABLE, sizeof(WCHAR)*(to-from+pars+1));
976 data = (WCHAR *)GlobalLock(hData);
977 ME_GetTextW(editor, data, from, to-from, TRUE);
980 gds.hData = GlobalAlloc(GMEM_MOVEABLE, 0);
982 es.dwCookie = (DWORD)&gds;
983 es.pfnCallback = ME_AppendToHGLOBAL;
984 SendMessageW(hWnd, EM_STREAMOUT, SFF_SELECTION|SF_RTF, (LPARAM)&es);
985 GlobalReAlloc(gds.hData, gds.nLength+1, 0);
987 SetClipboardData(CF_UNICODETEXT, hData);
988 SetClipboardData(RegisterClipboardFormatA("Rich Text Format"), gds.hData);
993 ME_InternalDeleteText(editor, from, to-from);
994 ME_CommitUndo(editor);
995 ME_UpdateRepaint(editor);
999 case WM_GETTEXTLENGTH:
1000 return ME_GetTextLength(editor);
1003 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
1005 tr.chrg.cpMax = wParam-1;
1006 tr.lpstrText = (WCHAR *)lParam;
1007 return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
1012 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
1013 ME_GetSelection(editor, &from, &to);
1014 tr.chrg.cpMin = from;
1016 tr.lpstrText = (WCHAR *)lParam;
1017 return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
1019 case EM_GETTEXTRANGE:
1021 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
1022 if (IsWindowUnicode(hWnd))
1023 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, FALSE);
1026 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
1027 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1028 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, FALSE);
1029 /* FIXME this is a potential security hole (buffer overrun)
1030 if you know more about wchar->mbyte conversion please explain
1032 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
1036 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, FALSE);
1039 ME_CommitUndo(editor);
1040 ME_WrapMarkedParagraphs(editor);
1041 ME_MoveCaret(editor);
1044 ME_DestroyEditor(editor);
1045 SetWindowLongW(hWnd, 0, 0);
1047 case WM_LBUTTONDOWN:
1049 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
1053 if (GetCapture() == hWnd)
1054 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
1057 if (GetCapture() == hWnd)
1061 hDC = BeginPaint(hWnd, &ps);
1062 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
1063 EndPaint(hWnd, &ps);
1066 ME_ShowCaret(editor);
1067 ME_SendOldNotify(editor, EN_SETFOCUS);
1070 ME_HideCaret(editor);
1071 ME_SendOldNotify(editor, EN_KILLFOCUS);
1075 HDC hDC = (HDC)wParam;
1077 COLORREF rgbBG = ME_GetBackColor(editor);
1078 if (GetUpdateRect(hWnd,&rc,TRUE))
1080 HBRUSH hbr = CreateSolidBrush(rgbBG);
1081 FillRect(hDC, &rc, hbr);
1087 TRACE("editor wnd command = %d\n", LOWORD(wParam));
1090 if (ME_ArrowKey(editor, LOWORD(wParam), GetKeyState(VK_CONTROL)<0)) {
1091 ME_CommitUndo(editor);
1092 ME_EnsureVisible(editor, editor->pCursors[0].pRun);
1094 ME_MoveCaret(editor);
1098 if (GetKeyState(VK_CONTROL)<0)
1100 if (LOWORD(wParam)=='W')
1104 ME_GetSelectionCharFormat(editor, &chf);
1105 ME_DumpStyleToBuf(&chf, buf);
1106 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1108 if (LOWORD(wParam)=='Q')
1110 ME_CheckCharOffsets(editor);
1117 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
1118 MessageBeep(MB_ICONERROR);
1119 return 0; /* FIXME really 0 ? */
1121 wstr = LOWORD(wParam);
1122 if (((unsigned)wstr)>=' ' || wstr=='\r') {
1123 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
1124 ME_Style *style = ME_GetInsertStyle(editor, 0);
1125 ME_SaveTempStyle(editor);
1126 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
1127 ME_ReleaseStyle(style);
1128 ME_CommitUndo(editor);
1129 ME_UpdateRepaint(editor);
1135 int nPos = editor->nScrollPosY;
1136 si.cbSize = sizeof(SCROLLINFO);
1137 si.fMask = SIF_PAGE|SIF_POS|SIF_RANGE|SIF_TRACKPOS;
1138 GetScrollInfo(hWnd, SB_VERT, &si);
1139 switch(LOWORD(wParam)) {
1141 nPos -= 24; /* FIXME follow the original */
1142 if (nPos<0) nPos = 0;
1146 int nEnd = editor->nTotalLength - editor->sizeWindow.cy;
1147 nPos += 24; /* FIXME follow the original */
1148 if (nPos>=nEnd) nPos = nEnd;
1152 nPos -= editor->sizeWindow.cy;
1153 if (nPos<0) nPos = 0;
1156 nPos += editor->sizeWindow.cy;
1157 if (nPos>=editor->nTotalLength) nPos = editor->nTotalLength-1;
1160 case SB_THUMBPOSITION:
1161 nPos = si.nTrackPos;
1164 if (nPos != editor->nScrollPosY) {
1165 ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);
1166 editor->nScrollPosY = nPos;
1167 SetScrollPos(hWnd, SB_VERT, nPos, FALSE);
1174 ME_MarkAllForWrapping(editor);
1175 ME_WrapMarkedParagraphs(editor);
1176 ME_UpdateScrollBar(editor);
1178 return DefWindowProcW(hWnd, msg, wParam, lParam);
1180 case EM_GETOLEINTERFACE:
1182 LPVOID *ppvObj = (LPVOID*) lParam;
1183 FIXME("EM_GETOLEINTERFACE %p: stub\n", ppvObj);
1184 return CreateIRichEditOle(ppvObj);
1188 return DefWindowProcW(hWnd, msg, wParam, lParam);
1193 /******************************************************************
1194 * RichEdit10ANSIWndProc (RICHED20.9)
1196 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1198 /* FIXME: this is NOT the same as 2.0 version */
1199 return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
1202 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
1204 HWND hWnd = editor->hWnd;
1205 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
1208 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
1210 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
1213 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
1214 item = item->member.para.next_para;
1217 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
1218 item = item->member.para.next_para;
1225 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
1227 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
1238 int nLen = ME_StrLen(item->member.run.strText) - nStart;
1241 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
1248 item = ME_FindItemFwd(item, diRun);
1251 while(nChars && item)
1253 int nLen = ME_StrLen(item->member.run.strText);
1257 if (item->member.run.nFlags & MERF_ENDPARA)
1267 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
1277 item = ME_FindItemFwd(item, diRun);
1283 static WCHAR wszClassName[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
1284 static WCHAR wszClassName50[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
1286 void ME_RegisterEditorClass(HINSTANCE hInstance)
1292 wcW.style = CS_HREDRAW | CS_VREDRAW;
1293 wcW.lpfnWndProc = RichEditANSIWndProc;
1296 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
1298 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
1299 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
1300 wcW.lpszMenuName = NULL;
1301 wcW.lpszClassName = wszClassName;
1302 bResult = RegisterClassW(&wcW);
1304 wcW.lpszClassName = wszClassName50;
1305 bResult = RegisterClassW(&wcW);
1308 wcA.style = CS_HREDRAW | CS_VREDRAW;
1309 wcA.lpfnWndProc = RichEditANSIWndProc;
1312 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
1314 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
1315 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
1316 wcA.lpszMenuName = NULL;
1317 wcA.lpszClassName = "RichEdit20A";
1318 bResult = RegisterClassA(&wcA);
1320 wcA.lpszClassName = "RichEdit50A";
1321 bResult = RegisterClassA(&wcA);
1325 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
1330 case DLL_PROCESS_ATTACH:
1331 DisableThreadLibraryCalls(hinstDLL);
1332 me_heap = HeapCreate (0, 0x10000, 0);
1333 ME_RegisterEditorClass(hinstDLL);
1336 case DLL_PROCESS_DETACH:
1337 UnregisterClassW(wszClassName, 0);
1338 UnregisterClassW(wszClassName50, 0);
1339 UnregisterClassA("RichEdit20A", 0);
1340 UnregisterClassA("RichEdit50A", 0);
1341 HeapDestroy (me_heap);
1348 /******************************************************************
1349 * CreateTextServices (RICHED20.4)
1351 * FIXME should be ITextHost instead of void*
1353 HRESULT WINAPI CreateTextServices(IUnknown *punkOuter, void *pITextHost,
1357 /* FIXME should support aggregation */
1359 return CLASS_E_NOAGGREGATION;
1361 return E_FAIL; /* E_NOTIMPL isn't allowed by MSDN */
1364 /******************************************************************
1365 * REExtendedRegisterClass (RICHED20.8)
1367 * FIXME undocumented
1369 void WINAPI REExtendedRegisterClass(void)