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
36 + EM_FINDTEXT (only FR_DOWN flag implemented)
37 + EM_FINDTEXTEX (only FR_DOWN flag implemented)
41 - EM_GETAUTOURLDETECT 2.0
42 - EM_GETBIDIOPTIONS 3.0
43 - EM_GETCHARFORMAT (partly done)
46 + EM_GETFIRSTVISIBLELINE (can be optimized if needed)
47 - EM_GETIMECOLOR 1.0asian
48 - EM_GETIMECOMPMODE 2.0
49 - EM_GETIMEOPTIONS 1.0asian
51 - EM_GETLANGOPTIONS 2.0
54 + EM_GETLINECOUNT returns number of rows, not of paragraphs
59 - EM_GETPASSWORDCHAR 2.0
60 - EM_GETPUNCTUATION 1.0asian
64 + EM_GETSELTEXT (ANSI&Unicode)
68 + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
70 ? + EM_GETTEXTRANGE (ANSI&Unicode)
71 - EM_GETTYPOGRAPHYOPTIONS 3.0
74 - EM_GETWORDBREAKPROCEX
75 - EM_GETWORDWRAPMODE 1.0asian
87 + EM_REPLACESEL (proper style?) ANSI&Unicode
91 - EM_SETBIDIOPTIONS 3.0
93 - EM_SETCHARFORMAT (partly done, no ANSI)
95 + EM_SETEVENTMASK (few notifications supported)
97 - EM_SETIMECOLOR 1.0asian
98 - EM_SETIMEOPTIONS 1.0asian
99 - EM_SETLANGOPTIONS 2.0
101 + EM_SETMODIFY (not sure if implementation is correct)
106 - EM_SETPASSWORDCHAR 2.0
107 - EM_SETPUNCTUATION 1.0asian
108 + EM_SETREADONLY no beep on modification attempt
110 + EM_SETRECTNP (EM_SETRECT without repainting)
112 - EM_SETSCROLLPOS 3.0
115 + EM_SETTEXTEX 3.0 (unicode only, no rich text insertion handling, proper style?)
117 - EM_SETTYPOGRAPHYOPTIONS 3.0
118 - EM_SETUNDOLIMIT 2.0
119 - EM_SETWORDBREAKPROC
120 - EM_SETWORDBREAKPROCEX
121 - EM_SETWORDWRAPMODE 1.0asian
123 - EM_SHOWSCROLLBAR 2.0
124 - EM_STOPGROUPTYPING 2.0
132 + WM_GETDLGCODE (the current implementation is incomplete)
133 + WM_GETTEXT (ANSI&Unicode)
134 + WM_GETTEXTLENGTH (ANSI version sucks)
137 + WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
139 - WM_STYLECHANGED (things like read-only flag)
144 * EN_CHANGE (sent from the wrong place)
161 * EN_UPDATE (sent from the wrong place)
169 - ES_DISABLENOSCROLL (scrollbar is always visible)
170 - ES_EX_NOCALLOLEINIT
172 - ES_MULTILINE (currently single line controls aren't supported)
174 - ES_READONLY (I'm not sure if beeping is the proper behaviour)
180 - ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
187 * RICHED20 TODO (incomplete):
189 * - messages/styles/notifications listed above
191 * - add remaining CHARFORMAT/PARAFORMAT fields
192 * - right/center align should strip spaces from the beginning
193 * - more advanced navigation (Ctrl-arrows)
195 * - pictures/OLE objects (not just smiling faces that lack API support ;-) )
196 * - COM interface (looks like a major pain in the TODO list)
197 * - calculate heights of pictures (half-done)
198 * - horizontal scrolling (not even started)
199 * - hysteresis during wrapping (related to scrollbars appearing/disappearing)
201 * - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
202 * - italic caret with italic fonts
204 * - most notifications aren't sent at all (the most important ones are)
205 * - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
206 * - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
207 * - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
208 * - full justification
212 * Bugs that are probably fixed, but not so easy to verify:
213 * - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
214 * - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
215 * - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
216 * - caret shouldn't be displayed when selection isn't empty
217 * - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
218 * - undo for setting default format (done, might be buggy)
219 * - styles might be not released properly (looks like they work like charm, but who knows?
228 #define NO_SHLWAPI_STREAM
233 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
236 HANDLE me_heap = NULL;
238 static ME_TextBuffer *ME_MakeText(void) {
240 ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
242 ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
243 ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
249 p1->member.para.next_para = p2;
250 p2->member.para.prev_para = p1;
251 p2->member.para.nCharOfs = 0;
255 buf->pCharStyle = NULL;
261 static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
263 WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
266 TRACE("%08lx %p\n", dwFormat, stream);
273 ME_StreamInFill(stream);
274 if (stream->editstream->dwError)
280 if (!(dwFormat & SF_UNICODE))
282 /* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
283 nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
288 nWideChars = stream->dwSize >> 1;
289 pText = (WCHAR *)stream->buffer;
292 ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
293 if (stream->dwSize == 0)
297 ME_CommitUndo(editor);
302 static void ME_RTFCharAttrHook(RTF_Info *info)
305 fmt.cbSize = sizeof(fmt);
308 switch(info->rtfMinor)
311 /* FIXME add more flags once they're implemented */
312 fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
313 fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
314 fmt.yHeight = 12*20; /* 12pt */
318 fmt.dwMask = CFM_BOLD;
319 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
322 fmt.dwMask = CFM_ITALIC;
323 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
326 fmt.dwMask = CFM_UNDERLINE;
327 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
328 fmt.bUnderlineType = CFU_CF1UNDERLINE;
331 fmt.dwMask = CFM_UNDERLINE;
335 fmt.dwMask = CFM_STRIKEOUT;
336 fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
340 case rtfSubScrShrink:
341 case rtfSuperScrShrink:
343 fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
344 if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
345 if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
346 if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
349 fmt.dwMask = CFM_BACKCOLOR;
351 if (info->rtfParam == 0)
352 fmt.dwEffects = CFE_AUTOBACKCOLOR;
353 else if (info->rtfParam != rtfNoParam)
355 RTFColor *c = RTFGetColor(info, info->rtfParam);
356 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
360 fmt.dwMask = CFM_COLOR;
362 if (info->rtfParam == 0)
363 fmt.dwEffects = CFE_AUTOCOLOR;
364 else if (info->rtfParam != rtfNoParam)
366 RTFColor *c = RTFGetColor(info, info->rtfParam);
367 fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
371 if (info->rtfParam != rtfNoParam)
373 RTFFont *f = RTFGetFont(info, info->rtfParam);
376 MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
377 fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
378 fmt.bCharSet = f->rtfFCharSet;
379 fmt.dwMask = CFM_FACE | CFM_CHARSET;
384 fmt.dwMask = CFM_SIZE;
385 if (info->rtfParam != rtfNoParam)
386 fmt.yHeight = info->rtfParam*10;
391 RTFFlushOutputBuffer(info);
392 /* FIXME too slow ? how come ? */
393 style2 = ME_ApplyStyle(info->style, &fmt);
394 ME_ReleaseStyle(info->style);
395 info->style = style2;
396 info->styleChanged = TRUE;
400 /* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
401 the same tags mean different things in different contexts */
402 static void ME_RTFParAttrHook(RTF_Info *info)
405 fmt.cbSize = sizeof(fmt);
408 switch(info->rtfMinor)
410 case rtfParDef: /* I'm not 100% sure what does it do, but I guess it restores default paragraph attributes */
411 fmt.dwMask = PFM_ALIGNMENT | PFM_TABSTOPS | PFM_OFFSET | PFM_STARTINDENT;
412 fmt.wAlignment = PFA_LEFT;
414 fmt.dxOffset = fmt.dxStartIndent = 0;
417 ME_GetSelectionParaFormat(info->editor, &fmt);
418 fmt.dwMask = PFM_STARTINDENT;
419 fmt.dxStartIndent = info->rtfParam + fmt.dxOffset;
424 ME_GetSelectionParaFormat(info->editor, &fmt);
425 first = fmt.dxStartIndent;
426 left = info->rtfParam;
427 fmt.dwMask = PFM_STARTINDENT|PFM_OFFSET;
428 fmt.dxStartIndent = first + left;
429 fmt.dxOffset = -first;
433 fmt.dwMask = PFM_RIGHTINDENT;
434 fmt.dxRightIndent = info->rtfParam;
438 fmt.dwMask = PFM_ALIGNMENT;
439 fmt.wAlignment = PFA_LEFT;
442 fmt.dwMask = PFM_ALIGNMENT;
443 fmt.wAlignment = PFA_RIGHT;
446 fmt.dwMask = PFM_ALIGNMENT;
447 fmt.wAlignment = PFA_CENTER;
450 ME_GetSelectionParaFormat(info->editor, &fmt);
451 if (!(fmt.dwMask & PFM_TABSTOPS))
453 fmt.dwMask |= PFM_TABSTOPS;
456 if (fmt.cTabCount < MAX_TAB_STOPS)
457 fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
461 RTFFlushOutputBuffer(info);
462 /* FIXME too slow ? how come ?*/
463 ME_SetSelectionParaFormat(info->editor, &fmt);
467 static void ME_RTFReadHook(RTF_Info *info) {
468 switch(info->rtfClass)
471 switch(info->rtfMajor)
474 if (info->stackTop < maxStack) {
475 memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
476 info->stack[info->stackTop].codePage = info->codePage;
477 info->stack[info->stackTop].unicodeLength = info->unicodeLength;
480 info->styleChanged = FALSE;
485 RTFFlushOutputBuffer(info);
486 if (info->stackTop<=1) {
487 info->rtfClass = rtfEOF;
491 assert(info->stackTop >= 0);
492 if (info->styleChanged)
494 /* FIXME too slow ? how come ? */
495 s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
496 ME_ReleaseStyle(info->style);
498 info->codePage = info->stack[info->stackTop].codePage;
499 info->unicodeLength = info->stack[info->stackTop].unicodeLength;
506 switch(info->rtfMajor)
509 ME_RTFCharAttrHook(info);
512 ME_RTFParAttrHook(info);
520 ME_StreamInFill(ME_InStream *stream)
522 stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
523 (BYTE *)stream->buffer,
524 sizeof(stream->buffer),
525 (LONG *)&stream->dwSize);
529 static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
533 int from, to, to2, nUndoMode;
535 int nEventMask = editor->nEventMask;
536 ME_InStream inStream;
538 TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, (UINT)format);
539 editor->nEventMask = 0;
541 ME_GetSelection(editor, &from, &to);
542 if (format & SFF_SELECTION) {
543 style = ME_GetSelectionInsertStyle(editor);
545 ME_InternalDeleteText(editor, from, to-from);
548 style = editor->pBuffer->pDefaultStyle;
549 ME_AddRefStyle(style);
550 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
551 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
553 ME_ClearTempStyle(editor);
554 /* FIXME restore default paragraph formatting ! */
557 nUndoMode = editor->nUndoMode;
558 editor->nUndoMode = umIgnore;
560 inStream.editstream = stream;
561 inStream.editstream->dwError = 0;
567 /* Check if it's really RTF, and if it is not, use plain text */
568 ME_StreamInFill(&inStream);
569 if (!inStream.editstream->dwError)
571 if (strncmp(inStream.buffer, "{\\rtf1", 6) && strncmp(inStream.buffer, "{\\urtf", 6))
579 if (!inStream.editstream->dwError)
581 if (format & SF_RTF) {
582 /* setup the RTF parser */
583 memset(&parser, 0, sizeof parser);
584 RTFSetEditStream(&parser, &inStream);
585 parser.rtfFormat = format&(SF_TEXT|SF_RTF);
586 parser.hwndEdit = editor->hWnd;
587 parser.editor = editor;
588 parser.style = style;
591 RTFSetReadHook(&parser, ME_RTFReadHook);
596 RTFFlushOutputBuffer(&parser);
599 style = parser.style;
601 else if (format & SF_TEXT)
602 ME_StreamInText(editor, format, &inStream, style);
604 ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
605 ME_GetSelection(editor, &to, &to2);
606 /* put the cursor at the top */
607 if (!(format & SFF_SELECTION))
608 SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
611 /* FIXME where to put cursor now ? */
615 editor->nUndoMode = nUndoMode;
616 pUI = ME_AddUndoItem(editor, diUndoDeleteRun, NULL);
617 TRACE("from %d to %d\n", from, to);
618 if (pUI && from < to)
623 ME_CommitUndo(editor);
624 ME_ReleaseStyle(style);
625 editor->nEventMask = nEventMask;
628 InvalidateRect(editor->hWnd, NULL, TRUE);
629 ME_UpdateRepaint(editor);
631 if (!(format & SFF_SELECTION)) {
632 ME_ClearTempStyle(editor);
634 ME_MoveCaret(editor);
635 ME_SendSelChange(editor);
636 ME_SendRequestResize(editor, FALSE);
643 ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
645 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
647 while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
648 item = ME_FindItemFwd(item, diParagraph);
653 nOffset -= item->member.para.nCharOfs;
654 if (nItemType == diParagraph) {
656 *nItemOffset = nOffset;
661 item = ME_FindItemFwd(item, diRun);
662 } while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
664 nOffset -= item->member.run.nCharOfs;
666 *nItemOffset = nOffset;
673 ME_FindText(ME_TextEditor *editor, DWORD flags, CHARRANGE *chrg, WCHAR *text, CHARRANGE *chrgText)
676 int nLen = lstrlenW(text);
678 ME_DisplayItem *item;
679 ME_DisplayItem *para;
681 TRACE("flags==0x%08lx, chrg->cpMin==%ld, chrg->cpMax==%ld text==%s\n",
682 flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
684 if (!(flags & FR_MATCHCASE))
685 FIXME("Case-insensitive search not implemented\n");
686 if (flags & ~(FR_DOWN | FR_MATCHCASE))
687 FIXME("Flags 0x%08lx not implemented\n", flags & ~(FR_DOWN | FR_MATCHCASE));
689 if (chrg->cpMax == -1)
692 nMax = ME_GetTextLength(editor);
696 nMin = min(chrg->cpMin, chrg->cpMax);
697 nMax = max(chrg->cpMin, chrg->cpMax);
703 chrgText->cpMin = chrgText->cpMax = ((flags & FR_DOWN) ? nMin : nMax);
704 return chrgText->cpMin;
707 if (flags & FR_DOWN) /* Forward search */
710 item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
714 para = ME_GetParagraph(item);
716 && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen < nMax)
718 ME_DisplayItem *pCurItem = item;
719 int nCurStart = nStart;
722 while (pCurItem && pCurItem->member.run.strText->szData[nCurStart + nMatched] == text[nMatched])
725 if (nMatched == nLen)
727 nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
730 chrgText->cpMin = nStart;
731 chrgText->cpMax = nStart + nLen;
733 TRACE("found at %d-%d\n", nStart, nStart + nLen);
736 if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
738 pCurItem = ME_FindItemFwd(pCurItem, diRun);
739 para = ME_GetParagraph(pCurItem);
740 nCurStart = -nMatched;
744 if (nStart == ME_StrLen(item->member.run.strText))
746 item = ME_FindItemFwd(item, diRun);
747 para = ME_GetParagraph(item);
752 else /* Backward search */
755 item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
759 para = ME_GetParagraph(item);
762 && para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
764 ME_DisplayItem *pCurItem = item;
768 while (pCurItem && pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1] == text[nLen - nMatched - 1])
771 if (nMatched == nLen)
773 nStart = para->member.para.nCharOfs + item->member.run.nCharOfs + nCurEnd - nMatched;
776 chrgText->cpMin = nStart;
777 chrgText->cpMax = nStart + nLen;
779 TRACE("found at %d-%d\n", nStart, nStart + nLen);
782 if (nCurEnd - nMatched == 0)
784 pCurItem = ME_FindItemBack(pCurItem, diRun);
785 para = ME_GetParagraph(pCurItem);
786 nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
792 item = ME_FindItemBack(item, diRun);
793 para = ME_GetParagraph(item);
794 nEnd = ME_StrLen(item->member.run.strText);
798 TRACE("not found\n");
803 ME_TextEditor *ME_MakeEditor(HWND hWnd) {
804 ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
808 ed->bEmulateVersion10 = FALSE;
809 ed->pBuffer = ME_MakeText();
811 ME_MakeFirstParagraph(hDC, ed->pBuffer);
812 ReleaseDC(hWnd, hDC);
813 ed->bCaretShown = FALSE;
815 ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
816 ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
817 ed->pCursors[0].nOffset = 0;
818 ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
819 ed->pCursors[1].nOffset = 0;
820 ed->nLastTotalLength = ed->nTotalLength = 0;
823 ed->rgbBackColor = -1;
824 ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
825 ed->bCaretAtEnd = FALSE;
828 ed->pUndoStack = ed->pRedoStack = NULL;
829 ed->nUndoMode = umAddToUndo;
831 ed->nLastSelStart = ed->nLastSelEnd = 0;
833 ed->nZoomNumerator = ed->nZoomDenominator = 0;
835 GetClientRect(hWnd, &ed->rcFormat);
836 for (i=0; i<HFONT_CACHE_SIZE; i++)
838 ed->pFontCache[i].nRefs = 0;
839 ed->pFontCache[i].nAge = 0;
840 ed->pFontCache[i].hFont = NULL;
842 ME_CheckCharOffsets(ed);
846 typedef struct tagME_GlobalDestStruct
850 } ME_GlobalDestStruct;
852 static DWORD CALLBACK ME_AppendToHGLOBAL(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
854 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
858 nMaxSize = GlobalSize(pData->hData);
859 if (pData->nLength+cb+1 >= cb)
861 /* round up to 2^17 */
862 int nNewSize = (((nMaxSize+cb+1)|0x1FFFF)+1) & 0xFFFE0000;
863 pData->hData = GlobalReAlloc(pData->hData, nNewSize, 0);
865 pDest = (BYTE *)GlobalLock(pData->hData);
866 memcpy(pDest + pData->nLength, lpBuff, cb);
867 pData->nLength += cb;
868 pDest[pData->nLength] = '\0';
869 GlobalUnlock(pData->hData);
875 static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
877 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
882 pDest = (WORD *)lpBuff;
883 pSrc = (WORD *)GlobalLock(pData->hData);
884 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
885 pDest[i] = pSrc[pData->nLength+i];
889 GlobalUnlock(pData->hData);
893 static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
895 ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
900 pSrc = (BYTE *)GlobalLock(pData->hData);
901 for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
902 pDest[i] = pSrc[pData->nLength+i];
906 GlobalUnlock(pData->hData);
911 void ME_DestroyEditor(ME_TextEditor *editor)
913 ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
914 ME_DisplayItem *p = pFirst, *pNext = NULL;
917 ME_ClearTempStyle(editor);
918 ME_EmptyUndoStack(editor);
921 ME_DestroyDisplayItem(p);
924 ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
925 for (i=0; i<HFONT_CACHE_SIZE; i++)
927 if (editor->pFontCache[i].hFont)
928 DeleteObject(editor->pFontCache[i].hFont);
930 DeleteObject(editor->hbrBackground);
935 static WCHAR wszClassName[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
936 static WCHAR wszClassName50[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
938 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
943 case DLL_PROCESS_ATTACH:
944 DisableThreadLibraryCalls(hinstDLL);
945 me_heap = HeapCreate (0, 0x10000, 0);
946 ME_RegisterEditorClass(hinstDLL);
949 case DLL_PROCESS_DETACH:
950 UnregisterClassW(wszClassName, 0);
951 UnregisterClassW(wszClassName50, 0);
952 UnregisterClassA("RichEdit20A", 0);
953 UnregisterClassA("RichEdit50A", 0);
954 HeapDestroy (me_heap);
962 #define UNSUPPORTED_MSG(e) \
964 FIXME(#e ": stub\n"); \
965 return DefWindowProcW(hWnd, msg, wParam, lParam);
967 static const char * const edit_messages[] = {
996 "EM_SETPASSWORDCHAR",
997 "EM_EMPTYUNDOBUFFER",
998 "EM_GETFIRSTVISIBLELINE",
1000 "EM_SETWORDBREAKPROC",
1001 "EM_GETWORDBREAKPROC",
1002 "EM_GETPASSWORDCHAR",
1010 static const char * const richedit_messages[] = {
1015 "EM_EXLINEFROMCHAR",
1021 "EM_GETOLEINTERFACE",
1031 "EM_SETOLECALLBACK",
1033 "EM_SETTARGETDEVICE",
1041 "EM_GETWORDBREAKPROCEX",
1042 "EM_SETWORDBREAKPROCEX",
1044 "EM_UNKNOWN_USER_83",
1049 "EM_STOPGROUPTYPING",
1053 "EM_GETAUTOURLDETECT",
1056 "EM_GETTEXTLENGTHEX",
1059 "EM_UNKNOWN_USER_98",
1060 "EM_UNKNOWN_USER_99",
1061 "EM_SETPUNCTUATION",
1062 "EM_GETPUNCTUATION",
1063 "EM_SETWORDWRAPMODE",
1064 "EM_GETWORDWRAPMODE",
1070 "EM_UNKNOWN_USER_109",
1071 "EM_UNKNOWN_USER_110",
1072 "EM_UNKNOWN_USER_111",
1073 "EM_UNKNOWN_USER_112",
1074 "EM_UNKNOWN_USER_113",
1075 "EM_UNKNOWN_USER_114",
1076 "EM_UNKNOWN_USER_115",
1077 "EM_UNKNOWN_USER_116",
1078 "EM_UNKNOWN_USER_117",
1079 "EM_UNKNOWN_USER_118",
1080 "EM_UNKNOWN_USER_119",
1081 "EM_SETLANGOPTIONS",
1082 "EM_GETLANGOPTIONS",
1083 "EM_GETIMECOMPMODE",
1087 "EM_SETIMEMODEBIAS",
1092 get_msg_name(UINT msg)
1094 if (msg >= EM_GETSEL && msg <= EM_SETLIMITTEXT)
1095 return edit_messages[msg - EM_GETSEL];
1096 if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
1097 return richedit_messages[msg - EM_CANPASTE];
1101 /******************************************************************
1102 * RichEditANSIWndProc (RICHED20.10)
1104 LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
1106 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
1108 TRACE("hWnd %p msg %04x (%s) %08x %08lx\n",
1109 hWnd, msg, get_msg_name(msg), wParam, lParam);
1113 UNSUPPORTED_MSG(EM_AUTOURLDETECT)
1114 UNSUPPORTED_MSG(EM_DISPLAYBAND)
1115 UNSUPPORTED_MSG(EM_EXLIMITTEXT)
1116 UNSUPPORTED_MSG(EM_FINDWORDBREAK)
1117 UNSUPPORTED_MSG(EM_FMTLINES)
1118 UNSUPPORTED_MSG(EM_FORMATRANGE)
1119 UNSUPPORTED_MSG(EM_GETAUTOURLDETECT)
1120 UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
1121 UNSUPPORTED_MSG(EM_GETEDITSTYLE)
1122 UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
1123 /* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
1124 UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
1125 UNSUPPORTED_MSG(EM_GETLIMITTEXT)
1126 UNSUPPORTED_MSG(EM_GETLINE)
1127 /* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
1128 UNSUPPORTED_MSG(EM_GETOPTIONS)
1129 UNSUPPORTED_MSG(EM_GETPASSWORDCHAR)
1130 UNSUPPORTED_MSG(EM_GETREDONAME)
1131 UNSUPPORTED_MSG(EM_GETSCROLLPOS)
1132 UNSUPPORTED_MSG(EM_GETTEXTMODE)
1133 UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
1134 UNSUPPORTED_MSG(EM_GETUNDONAME)
1135 UNSUPPORTED_MSG(EM_GETWORDBREAKPROC)
1136 UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
1137 UNSUPPORTED_MSG(EM_HIDESELECTION)
1138 UNSUPPORTED_MSG(EM_LIMITTEXT) /* also known as EM_SETLIMITTEXT */
1139 UNSUPPORTED_MSG(EM_PASTESPECIAL)
1140 UNSUPPORTED_MSG(EM_SCROLL)
1141 UNSUPPORTED_MSG(EM_SCROLLCARET)
1142 UNSUPPORTED_MSG(EM_SELECTIONTYPE)
1143 UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
1144 UNSUPPORTED_MSG(EM_SETEDITSTYLE)
1145 UNSUPPORTED_MSG(EM_SETFONTSIZE)
1146 UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
1147 UNSUPPORTED_MSG(EM_SETOLECALLBACK)
1148 UNSUPPORTED_MSG(EM_SETOPTIONS)
1149 UNSUPPORTED_MSG(EM_SETPALETTE)
1150 UNSUPPORTED_MSG(EM_SETPASSWORDCHAR)
1151 UNSUPPORTED_MSG(EM_SETSCROLLPOS)
1152 UNSUPPORTED_MSG(EM_SETTABSTOPS)
1153 UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
1154 UNSUPPORTED_MSG(EM_SETTEXTMODE)
1155 UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
1156 UNSUPPORTED_MSG(EM_SETUNDOLIMIT)
1157 UNSUPPORTED_MSG(EM_SETWORDBREAKPROC)
1158 UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
1159 UNSUPPORTED_MSG(EM_SHOWSCROLLBAR)
1160 UNSUPPORTED_MSG(WM_SETFONT)
1161 UNSUPPORTED_MSG(WM_STYLECHANGING)
1162 UNSUPPORTED_MSG(WM_STYLECHANGED)
1163 /* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
1165 /* Messages specific to Richedit controls */
1168 return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam);
1170 return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
1173 UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
1174 if (GetWindowLongW(hWnd, GWL_STYLE)&ES_WANTRETURN)
1175 code |= 0; /* FIXME what can we do here ? ask for messages and censor them ? */
1180 CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
1181 TRACE("WM_NCCREATE: style 0x%08lx\n", pcs->style);
1182 editor = ME_MakeEditor(hWnd);
1183 SetWindowLongW(hWnd, 0, (long)editor);
1184 pcs = 0; /* ignore */
1187 case EM_EMPTYUNDOBUFFER:
1188 ME_EmptyUndoStack(editor);
1192 /* Note: wParam/lParam can be NULL */
1194 PUINT pfrom = wParam ? (PUINT)wParam : &from;
1195 PUINT pto = lParam ? (PUINT)lParam : &to;
1196 ME_GetSelection(editor, (int *)pfrom, (int *)pto);
1197 if ((*pfrom|*pto) & 0xFFFF0000)
1199 return MAKELONG(*pfrom,*pto);
1203 CHARRANGE *pRange = (CHARRANGE *)lParam;
1204 ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
1205 TRACE("EM_EXGETSEL = (%ld,%ld)\n", pRange->cpMin, pRange->cpMax);
1209 return editor->pUndoStack != NULL;
1211 return editor->pRedoStack != NULL;
1212 case WM_UNDO: /* FIXME: actually not the same */
1221 ME_SetSelection(editor, wParam, lParam);
1223 ME_SendSelChange(editor);
1228 CHARRANGE *pRange = (CHARRANGE *)lParam;
1229 TRACE("EM_EXSETSEL (%ld,%ld)\n", pRange->cpMin, pRange->cpMax);
1230 ME_SetSelection(editor, pRange->cpMin, pRange->cpMax);
1231 /* FIXME optimize */
1233 ME_SendSelChange(editor);
1238 LPWSTR wszText = (LPWSTR)lParam;
1239 SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
1240 size_t len = lstrlenW(wszText);
1243 TRACE("EM_SETTEXEX - %s, flags %d, cp %d\n", debugstr_w(wszText), (int)pStruct->flags, pStruct->codepage);
1244 if (pStruct->codepage != 1200) {
1245 FIXME("EM_SETTEXTEX only supports unicode right now!\n");
1248 /* FIXME: this should support RTF strings too, according to MSDN */
1249 if (pStruct->flags & ST_SELECTION) {
1250 ME_GetSelection(editor, &from, &to);
1251 style = ME_GetSelectionInsertStyle(editor);
1252 ME_InternalDeleteText(editor, from, to - from);
1253 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1254 ME_ReleaseStyle(style);
1257 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1258 ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
1261 ME_CommitUndo(editor);
1262 if (!(pStruct->flags & ST_KEEPUNDO))
1263 ME_EmptyUndoStack(editor);
1264 ME_UpdateRepaint(editor);
1267 case EM_SETBKGNDCOLOR:
1269 LRESULT lColor = ME_GetBackColor(editor);
1270 if (editor->rgbBackColor != -1)
1271 DeleteObject(editor->hbrBackground);
1274 editor->rgbBackColor = -1;
1275 editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
1279 editor->rgbBackColor = lParam;
1280 editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
1282 if (editor->bRedraw)
1284 InvalidateRect(hWnd, NULL, TRUE);
1290 return editor->nModifyStep == 0 ? 0 : 1;
1294 editor->nModifyStep = 0x80000000;
1296 editor->nModifyStep = 0;
1300 case EM_SETREADONLY:
1302 long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
1304 nStyle |= ES_READONLY;
1306 nStyle &= ~ES_READONLY;
1307 SetWindowLongW(hWnd, GWL_STYLE, nStyle);
1311 case EM_SETEVENTMASK:
1313 DWORD nOldMask = editor->nEventMask;
1315 editor->nEventMask = lParam;
1318 case EM_GETEVENTMASK:
1319 return editor->nEventMask;
1320 case EM_SETCHARFORMAT:
1322 CHARFORMAT2W buf, *p;
1323 BOOL bRepaint = TRUE;
1324 p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
1326 ME_SetDefaultCharFormat(editor, p);
1327 else if (wParam == (SCF_WORD | SCF_SELECTION))
1328 FIXME("EM_SETCHARFORMAT: word selection not supported\n");
1329 else if (wParam == SCF_ALL)
1330 ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
1333 ME_GetSelection(editor, &from, &to);
1334 bRepaint = (from != to);
1335 ME_SetSelectionCharFormat(editor, p);
1337 ME_CommitUndo(editor);
1339 ME_UpdateRepaint(editor);
1342 case EM_GETCHARFORMAT:
1344 CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
1345 if (dst->cbSize != sizeof(CHARFORMATA) &&
1346 dst->cbSize != sizeof(CHARFORMATW) &&
1347 dst->cbSize != sizeof(CHARFORMAT2A) &&
1348 dst->cbSize != sizeof(CHARFORMAT2W))
1350 tmp.cbSize = sizeof(tmp);
1352 ME_GetDefaultCharFormat(editor, &tmp);
1354 ME_GetSelectionCharFormat(editor, &tmp);
1355 ME_CopyToCFAny(dst, &tmp);
1358 case EM_SETPARAFORMAT:
1359 ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1360 ME_UpdateRepaint(editor);
1361 ME_CommitUndo(editor);
1363 case EM_GETPARAFORMAT:
1364 ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
1366 case EM_GETFIRSTVISIBLELINE:
1368 ME_DisplayItem *p = editor->pBuffer->pFirst;
1369 int y = editor->nScrollPosY;
1374 p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
1375 if (p->type == diTextEnd)
1377 if (p->type == diParagraph) {
1378 ypara = p->member.para.nYPos;
1381 ystart = ypara + p->member.row.nYPos;
1382 yend = ystart + p->member.row.nHeight;
1392 int nPos = editor->nScrollPosY, nEnd= editor->nTotalLength - editor->sizeWindow.cy;
1393 nPos += 8 * lParam; /* FIXME follow the original */
1398 if (nPos != editor->nScrollPosY) {
1399 int dy = editor->nScrollPosY - nPos;
1400 editor->nScrollPosY = nPos;
1401 SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
1402 if (editor->bRedraw)
1404 ScrollWindow(hWnd, 0, dy, NULL, NULL);
1408 return TRUE; /* Should return false if a single line richedit control */
1413 ME_GetSelection(editor, &from, &to);
1414 ME_InternalDeleteText(editor, from, to-from);
1415 ME_CommitUndo(editor);
1416 ME_UpdateRepaint(editor);
1423 LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
1424 size_t len = lstrlenW(wszText);
1425 TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
1427 ME_GetSelection(editor, &from, &to);
1428 style = ME_GetSelectionInsertStyle(editor);
1429 ME_InternalDeleteText(editor, from, to-from);
1430 ME_InsertTextFromCursor(editor, 0, wszText, len, style);
1431 ME_ReleaseStyle(style);
1432 ME_EndToUnicode(hWnd, wszText);
1433 /* drop temporary style if line end */
1434 /* FIXME question: does abc\n mean: put abc, clear temp style, put \n? (would require a change) */
1435 if (len>0 && wszText[len-1] == '\n')
1436 ME_ClearTempStyle(editor);
1438 ME_CommitUndo(editor);
1440 ME_EmptyUndoStack(editor);
1441 ME_UpdateRepaint(editor);
1446 ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
1449 LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
1450 TRACE("WM_SETTEXT lParam==%lx\n",lParam);
1451 TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
1452 if (lstrlenW(wszText) > 0)
1454 /* uses default style! */
1455 ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
1457 ME_EndToUnicode(hWnd, wszText);
1460 TRACE("WM_SETTEXT - NULL\n");
1461 ME_CommitUndo(editor);
1462 ME_EmptyUndoStack(editor);
1463 ME_UpdateRepaint(editor);
1468 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1469 if (IsClipboardFormatAvailable(nRTFFormat))
1471 if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1479 ME_GlobalDestStruct gds;
1480 UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
1483 if (IsClipboardFormatAvailable(nRTFFormat))
1484 cf = nRTFFormat, dwFormat = SF_RTF;
1485 else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
1486 cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
1490 if (!OpenClipboard(hWnd))
1492 gds.hData = GetClipboardData(cf);
1494 es.dwCookie = (DWORD)&gds;
1495 es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
1496 SendMessageW(hWnd, EM_STREAMIN, dwFormat|SFF_SELECTION, (LPARAM)&es);
1508 ME_GlobalDestStruct gds;
1510 if (!OpenClipboard(hWnd))
1514 ME_GetSelection(editor, &from, &to);
1515 pars = ME_CountParagraphsBetween(editor, from, to);
1516 hData = GlobalAlloc(GMEM_MOVEABLE, sizeof(WCHAR)*(to-from+pars+1));
1517 data = (WCHAR *)GlobalLock(hData);
1518 ME_GetTextW(editor, data, from, to-from, TRUE);
1519 GlobalUnlock(hData);
1521 gds.hData = GlobalAlloc(GMEM_MOVEABLE, 0);
1523 es.dwCookie = (DWORD)&gds;
1524 es.pfnCallback = ME_AppendToHGLOBAL;
1525 SendMessageW(hWnd, EM_STREAMOUT, SFF_SELECTION|SF_RTF, (LPARAM)&es);
1526 GlobalReAlloc(gds.hData, gds.nLength+1, 0);
1528 SetClipboardData(CF_UNICODETEXT, hData);
1529 SetClipboardData(RegisterClipboardFormatA("Rich Text Format"), gds.hData);
1534 ME_InternalDeleteText(editor, from, to-from);
1535 ME_CommitUndo(editor);
1536 ME_UpdateRepaint(editor);
1540 case WM_GETTEXTLENGTH:
1541 return ME_GetTextLength(editor);
1542 case EM_GETTEXTLENGTHEX:
1543 return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
1546 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
1548 tr.chrg.cpMax = wParam-1;
1549 tr.lpstrText = (WCHAR *)lParam;
1550 return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
1554 GETTEXTEX *ex = (GETTEXTEX*)wParam;
1557 if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
1558 FIXME("GETTEXTEX flags 0x%08lx not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
1560 if (ex->flags & GT_SELECTION)
1562 ME_GetSelection(editor, &nStart, &nCount);
1564 nCount = min(nCount, ex->cb - 1);
1569 nCount = ex->cb - 1;
1571 if (ex->codepage == 1200 || IsWindowUnicode(hWnd))
1573 nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
1574 return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
1578 /* potentially each char may be a CR, why calculate the exact value with O(N) when
1579 we can just take a bigger buffer? :) */
1580 int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
1581 LPWSTR buffer = HeapAlloc(GetProcessHeap(), 0, (crlfmul*nCount + 1) * sizeof(WCHAR));
1582 DWORD buflen = ex->cb;
1586 buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
1587 rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefaultChar);
1589 HeapFree(GetProcessHeap(),0,buffer);
1596 TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
1597 ME_GetSelection(editor, &from, &to);
1598 tr.chrg.cpMin = from;
1600 tr.lpstrText = (WCHAR *)lParam;
1601 return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
1603 case EM_GETTEXTRANGE:
1605 TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
1606 TRACE("EM_GETTEXTRANGE min=%ld max=%ld unicode=%d emul1.0=%d length=%d\n",
1607 rng->chrg.cpMin, rng->chrg.cpMax, IsWindowUnicode(hWnd),
1608 editor->bEmulateVersion10, ME_GetTextLength(editor));
1609 if (IsWindowUnicode(hWnd))
1610 return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, editor->bEmulateVersion10);
1613 int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
1614 WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
1615 int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, editor->bEmulateVersion10);
1616 /* FIXME this is a potential security hole (buffer overrun)
1617 if you know more about wchar->mbyte conversion please explain
1619 WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
1624 case EM_GETLINECOUNT:
1626 ME_DisplayItem *item = editor->pBuffer->pFirst->next;
1629 while (item != editor->pBuffer->pLast)
1631 assert(item->type == diParagraph);
1632 nRows += item->member.para.nRows;
1633 item = item->member.para.next_para;
1635 TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
1636 return max(1, nRows);
1638 case EM_LINEFROMCHAR:
1641 return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
1643 return ME_RowNumberFromCharOfs(editor, wParam);
1645 case EM_EXLINEFROMCHAR:
1647 return ME_RowNumberFromCharOfs(editor, lParam);
1651 ME_DisplayItem *item, *para;
1655 item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
1657 item = ME_FindRowWithNumber(editor, wParam);
1660 para = ME_GetParagraph(item);
1661 item = ME_FindItemFwd(item, diRun);
1662 nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
1663 TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
1668 ME_DisplayItem *item, *item_end;
1669 int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
1671 if (wParam > ME_GetTextLength(editor))
1675 FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
1678 item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
1679 item = ME_RowStart(item);
1680 nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
1681 item_end = ME_FindItemFwd(item, diStartRow);
1683 nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
1685 nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs
1686 - (editor->bEmulateVersion10?2:1);
1687 nChars = nNextLineOfs - nThisLineOfs;
1688 TRACE("EM_LINELENGTH(%d)==%d\n",wParam, nChars);
1693 FINDTEXTA *ft = (FINDTEXTA *)lParam;
1694 int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
1697 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
1698 MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
1699 return ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
1703 FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
1704 int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
1707 if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
1708 MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
1709 return ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
1713 FINDTEXTW *ft = (FINDTEXTW *)lParam;
1714 return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
1716 case EM_FINDTEXTEXW:
1718 FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
1719 return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
1722 if (!wParam || !lParam)
1724 *(int *)wParam = editor->nZoomNumerator;
1725 *(int *)lParam = editor->nZoomDenominator;
1728 return ME_SetZoom(editor, wParam, lParam);
1729 case EM_CHARFROMPOS:
1730 return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
1731 case EM_POSFROMCHAR:
1733 ME_DisplayItem *pRun;
1734 int nCharOfs, nOffset, nLength;
1738 /* detect which API version we're dealing with */
1739 if (wParam >= 0x40000)
1741 nLength = ME_GetTextLength(editor);
1743 if (nCharOfs < nLength) {
1744 ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
1745 assert(pRun->type == diRun);
1746 pt.y = pRun->member.run.pt.y;
1747 pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
1748 pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
1751 pt.y = editor->pBuffer->pLast->member.para.nYPos;
1753 if (wParam >= 0x40000) {
1754 *(POINTL *)wParam = pt;
1756 return MAKELONG( pt.x, pt.y );
1759 ME_CommitUndo(editor);
1760 ME_WrapMarkedParagraphs(editor);
1761 ME_MoveCaret(editor);
1764 ME_DestroyEditor(editor);
1765 SetWindowLongW(hWnd, 0, 0);
1767 case WM_LBUTTONDOWN:
1769 ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
1773 if (GetCapture() == hWnd)
1774 ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
1777 if (GetCapture() == hWnd)
1781 if (editor->bRedraw)
1786 hDC = BeginPaint(hWnd, &ps);
1787 ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
1788 EndPaint(hWnd, &ps);
1792 ME_ShowCaret(editor);
1793 ME_SendOldNotify(editor, EN_SETFOCUS);
1796 ME_HideCaret(editor);
1797 ME_SendOldNotify(editor, EN_KILLFOCUS);
1801 if (editor->bRedraw)
1803 HDC hDC = (HDC)wParam;
1805 if (GetUpdateRect(hWnd,&rc,TRUE))
1807 FillRect(hDC, &rc, editor->hbrBackground);
1813 TRACE("editor wnd command = %d\n", LOWORD(wParam));
1816 if (ME_ArrowKey(editor, LOWORD(wParam), GetKeyState(VK_CONTROL)<0)) {
1817 ME_CommitUndo(editor);
1818 ME_EnsureVisible(editor, editor->pCursors[0].pRun);
1820 ME_MoveCaret(editor);
1824 if (GetKeyState(VK_CONTROL)<0)
1826 if (LOWORD(wParam)=='W')
1830 ME_GetSelectionCharFormat(editor, &chf);
1831 ME_DumpStyleToBuf(&chf, buf);
1832 MessageBoxA(NULL, buf, "Style dump", MB_OK);
1834 if (LOWORD(wParam)=='Q')
1836 ME_CheckCharOffsets(editor);
1842 WCHAR wstr = LOWORD(wParam);
1846 case 3: /* Ctrl-C */
1847 SendMessageW(editor->hWnd, WM_COPY, 0, 0);
1851 if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
1852 MessageBeep(MB_ICONERROR);
1853 return 0; /* FIXME really 0 ? */
1858 case 1: /* Ctrl-A */
1859 ME_SetSelection(editor, 0, -1);
1861 case 22: /* Ctrl-V */
1862 SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
1864 case 24: /* Ctrl-X */
1865 SendMessageW(editor->hWnd, WM_CUT, 0, 0);
1867 case 25: /* Ctrl-Y */
1868 SendMessageW(editor->hWnd, EM_REDO, 0, 0);
1870 case 26: /* Ctrl-Z */
1871 SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
1874 if (((unsigned)wstr)>=' ' || wstr=='\r' || wstr=='\t') {
1875 /* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
1876 ME_Style *style = ME_GetInsertStyle(editor, 0);
1877 ME_SaveTempStyle(editor);
1878 ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
1879 ME_ReleaseStyle(style);
1880 ME_CommitUndo(editor);
1881 ME_UpdateRepaint(editor);
1887 int nPos = editor->nScrollPosY;
1888 si.cbSize = sizeof(SCROLLINFO);
1889 si.fMask = SIF_PAGE|SIF_POS|SIF_RANGE|SIF_TRACKPOS;
1890 GetScrollInfo(hWnd, SB_VERT, &si);
1891 switch(LOWORD(wParam)) {
1893 nPos -= 24; /* FIXME follow the original */
1894 if (nPos<0) nPos = 0;
1898 int nEnd = editor->nTotalLength - editor->sizeWindow.cy;
1899 nPos += 24; /* FIXME follow the original */
1900 if (nPos>=nEnd) nPos = nEnd;
1904 nPos -= editor->sizeWindow.cy;
1905 if (nPos<0) nPos = 0;
1908 nPos += editor->sizeWindow.cy;
1909 if (nPos>=editor->nTotalLength) nPos = editor->nTotalLength-1;
1912 case SB_THUMBPOSITION:
1913 nPos = si.nTrackPos;
1916 if (nPos != editor->nScrollPosY) {
1917 int dy = editor->nScrollPosY - nPos;
1918 editor->nScrollPosY = nPos;
1919 SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
1920 if (editor->bRedraw)
1922 ScrollWindow(hWnd, 0, dy, NULL, NULL);
1930 int gcWheelDelta = 0, nPos = editor->nScrollPosY, nEnd = editor->nTotalLength - editor->sizeWindow.cy;
1931 UINT pulScrollLines;
1932 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1933 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1934 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1935 nPos += pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8; /* FIXME follow the original */
1940 if (nPos != editor->nScrollPosY) {
1941 int dy = editor->nScrollPosY - nPos;
1942 editor->nScrollPosY = nPos;
1943 SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
1944 if (editor->bRedraw)
1946 ScrollWindow(hWnd, 0, dy, NULL, NULL);
1954 *((RECT *)lParam) = editor->rcFormat;
1962 RECT *rc = (RECT *)lParam;
1966 editor->rcFormat.left += rc->left;
1967 editor->rcFormat.top += rc->top;
1968 editor->rcFormat.right += rc->right;
1969 editor->rcFormat.bottom += rc->bottom;
1973 editor->rcFormat = *rc;
1978 GetClientRect(hWnd, &editor->rcFormat);
1980 if (msg != EM_SETRECTNP)
1981 ME_RewrapRepaint(editor);
1984 case EM_REQUESTRESIZE:
1985 ME_SendRequestResize(editor, TRUE);
1988 editor->bRedraw = wParam;
1992 GetClientRect(hWnd, &editor->rcFormat);
1993 ME_RewrapRepaint(editor);
1994 return DefWindowProcW(hWnd, msg, wParam, lParam);
1996 case EM_GETOLEINTERFACE:
1998 LPVOID *ppvObj = (LPVOID*) lParam;
1999 FIXME("EM_GETOLEINTERFACE %p: stub\n", ppvObj);
2000 return CreateIRichEditOle(ppvObj);
2004 return DefWindowProcW(hWnd, msg, wParam, lParam);
2010 /******************************************************************
2011 * RichEdit10ANSIWndProc (RICHED20.9)
2013 LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
2017 /* FIXME: this is NOT the same as 2.0 version */
2018 result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
2019 if (msg == WM_NCCREATE)
2021 ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
2023 editor->bEmulateVersion10 = TRUE;
2024 editor->pBuffer->pLast->member.para.nCharOfs = 2;
2029 void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
2031 HWND hWnd = editor->hWnd;
2032 SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
2035 int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
2037 ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
2040 while(item && item->member.para.next_para->member.para.nCharOfs <= from)
2041 item = item->member.para.next_para;
2044 while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
2045 item = item->member.para.next_para;
2052 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
2054 ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
2056 WCHAR *pStart = buffer;
2065 int nLen = ME_StrLen(item->member.run.strText) - nStart;
2068 CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
2075 item = ME_FindItemFwd(item, diRun);
2078 while(nChars && item)
2080 int nLen = ME_StrLen(item->member.run.strText);
2084 if (item->member.run.nFlags & MERF_ENDPARA)
2093 /* our end paragraph consists of 2 characters now */
2094 if (editor->bEmulateVersion10)
2098 CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
2105 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2109 item = ME_FindItemFwd(item, diRun);
2112 TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
2116 void ME_RegisterEditorClass(HINSTANCE hInstance)
2122 wcW.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2123 wcW.lpfnWndProc = RichEditANSIWndProc;
2126 wcW.hInstance = NULL; /* hInstance would register DLL-local class */
2128 wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
2129 wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2130 wcW.lpszMenuName = NULL;
2131 wcW.lpszClassName = wszClassName;
2132 bResult = RegisterClassW(&wcW);
2134 wcW.lpszClassName = wszClassName50;
2135 bResult = RegisterClassW(&wcW);
2138 wcA.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
2139 wcA.lpfnWndProc = RichEditANSIWndProc;
2142 wcA.hInstance = NULL; /* hInstance would register DLL-local class */
2144 wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
2145 wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
2146 wcA.lpszMenuName = NULL;
2147 wcA.lpszClassName = "RichEdit20A";
2148 bResult = RegisterClassA(&wcA);
2150 wcA.lpszClassName = "RichEdit50A";
2151 bResult = RegisterClassA(&wcA);
2154 /******************************************************************
2155 * CreateTextServices (RICHED20.4)
2157 * FIXME should be ITextHost instead of void*
2159 HRESULT WINAPI CreateTextServices(IUnknown *punkOuter, void *pITextHost,
2163 /* FIXME should support aggregation */
2165 return CLASS_E_NOAGGREGATION;
2167 return E_FAIL; /* E_NOTIMPL isn't allowed by MSDN */
2170 /******************************************************************
2171 * REExtendedRegisterClass (RICHED20.8)
2173 * FIXME undocumented
2175 void WINAPI REExtendedRegisterClass(void)