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Sweden-Number/dlls/riched20/editor.c

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/*
* RichEdit - functions dealing with editor object
*
* Copyright 2004 by Krzysztof Foltman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
API implementation status:
Messages (ANSI versions not done yet)
- EM_AUTOURLDETECT 2.0
+ EM_CANPASTE
+ EM_CANREDO 2.0
+ EM_CANUNDO
+ EM_CHARFROMPOS
- EM_DISPLAYBAND
+ EM_EMPTYUNDOBUFFER
+ EM_EXGETSEL
- EM_EXLIMITTEXT
+ EM_EXLINEFROMCHAR
+ EM_EXSETSEL
+ EM_FINDTEXT (only FR_DOWN flag implemented)
+ EM_FINDTEXTEX (only FR_DOWN flag implemented)
- EM_FINDWORDBREAK
- EM_FMTLINES
- EM_FORMATRANGE
- EM_GETAUTOURLDETECT 2.0
- EM_GETBIDIOPTIONS 3.0
- EM_GETCHARFORMAT (partly done)
- EM_GETEDITSTYLE
+ EM_GETEVENTMASK
+ EM_GETFIRSTVISIBLELINE (can be optimized if needed)
- EM_GETIMECOLOR 1.0asian
- EM_GETIMECOMPMODE 2.0
- EM_GETIMEOPTIONS 1.0asian
- EM_GETIMESTATUS
- EM_GETLANGOPTIONS 2.0
- EM_GETLIMITTEXT
- EM_GETLINE
+ EM_GETLINECOUNT returns number of rows, not of paragraphs
+ EM_GETMODIFY
- EM_GETOLEINTERFACE
- EM_GETOPTIONS
+ EM_GETPARAFORMAT
- EM_GETPASSWORDCHAR 2.0
- EM_GETPUNCTUATION 1.0asian
+ EM_GETRECT
- EM_GETREDONAME 2.0
+ EM_GETSEL
+ EM_GETSELTEXT (ANSI&Unicode)
- EM_GETSCROLLPOS 3.0
! - EM_GETTHUMB
- EM_GETTEXTEX 2.0
+ EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
- EM_GETTEXTMODE 2.0
? + EM_GETTEXTRANGE (ANSI&Unicode)
- EM_GETTYPOGRAPHYOPTIONS 3.0
- EM_GETUNDONAME
- EM_GETWORDBREAKPROC
- EM_GETWORDBREAKPROCEX
- EM_GETWORDWRAPMODE 1.0asian
+ EM_GETZOOM 3.0
- EM_HIDESELECTION
- EM_LIMITTEXT
+ EM_LINEFROMCHAR
+ EM_LINEINDEX
+ EM_LINELENGTH
+ EM_LINESCROLL
- EM_PASTESPECIAL
+ EM_POSFROMCHAR
+ EM_REDO 2.0
+ EM_REQUESTRESIZE
+ EM_REPLACESEL (proper style?) ANSI&Unicode
- EM_SCROLL
- EM_SCROLLCARET
- EM_SELECTIONTYPE
- EM_SETBIDIOPTIONS 3.0
+ EM_SETBKGNDCOLOR
- EM_SETCHARFORMAT (partly done, no ANSI)
- EM_SETEDITSTYLE
+ EM_SETEVENTMASK (few notifications supported)
- EM_SETFONTSIZE
- EM_SETIMECOLOR 1.0asian
- EM_SETIMEOPTIONS 1.0asian
- EM_SETLANGOPTIONS 2.0
- EM_SETLIMITTEXT
+ EM_SETMODIFY (not sure if implementation is correct)
- EM_SETOLECALLBACK
- EM_SETOPTIONS
- EM_SETPALETTE 2.0
+ EM_SETPARAFORMAT
- EM_SETPASSWORDCHAR 2.0
- EM_SETPUNCTUATION 1.0asian
+ EM_SETREADONLY no beep on modification attempt
+ EM_SETRECT
+ EM_SETRECTNP (EM_SETRECT without repainting)
+ EM_SETSEL
- EM_SETSCROLLPOS 3.0
- EM_SETTABSTOPS 3.0
- EM_SETTARGETDEVICE
+ EM_SETTEXTEX 3.0 (unicode only, no rich text insertion handling, proper style?)
- EM_SETTEXTMODE 2.0
- EM_SETTYPOGRAPHYOPTIONS 3.0
- EM_SETUNDOLIMIT 2.0
- EM_SETWORDBREAKPROC
- EM_SETWORDBREAKPROCEX
- EM_SETWORDWRAPMODE 1.0asian
+ EM_SETZOOM 3.0
- EM_SHOWSCROLLBAR 2.0
- EM_STOPGROUPTYPING 2.0
+ EM_STREAMIN
+ EM_STREAMOUT
+ EM_UNDO
+ WM_CHAR
+ WM_CLEAR
+ WM_COPY
+ WM_CUT
+ WM_GETDLGCODE (the current implementation is incomplete)
+ WM_GETTEXT (ANSI&Unicode)
+ WM_GETTEXTLENGTH (ANSI version sucks)
+ WM_PASTE
- WM_SETFONT
+ WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
- WM_STYLECHANGING
- WM_STYLECHANGED (things like read-only flag)
- WM_UNICHAR
Notifications
* EN_CHANGE (sent from the wrong place)
- EN_CORRECTTEXT
- EN_DROPFILES
- EN_ERRSPACE
- EN_HSCROLL
- EN_IMECHANGE
+ EN_KILLFOCUS
- EN_LINK
- EN_MAXTEXT
- EN_MSGFILTER
- EN_OLEOPFAILED
- EN_PROTECTED
+ EN_REQUESTRESIZE
- EN_SAVECLIPBOARD
+ EN_SELCHANGE
+ EN_SETFOCUS
- EN_STOPNOUNDO
* EN_UPDATE (sent from the wrong place)
- EN_VSCROLL
Styles
- ES_AUTOHSCROLL
- ES_AUTOVSCROLL
- ES_CENTER
- ES_DISABLENOSCROLL (scrollbar is always visible)
- ES_EX_NOCALLOLEINIT
- ES_LEFT
- ES_MULTILINE (currently single line controls aren't supported)
- ES_NOIME
- ES_READONLY (I'm not sure if beeping is the proper behaviour)
- ES_RIGHT
- ES_SAVESEL
- ES_SELFIME
- ES_SUNKEN
- ES_VERTICAL
- ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
- WS_SETFONT
- WS_HSCROLL
- WS_VSCROLL
*/
/*
* RICHED20 TODO (incomplete):
*
* - messages/styles/notifications listed above
* - Undo coalescing
* - add remaining CHARFORMAT/PARAFORMAT fields
* - right/center align should strip spaces from the beginning
* - more advanced navigation (Ctrl-arrows)
* - tabs
* - pictures/OLE objects (not just smiling faces that lack API support ;-) )
* - COM interface (looks like a major pain in the TODO list)
* - calculate heights of pictures (half-done)
* - horizontal scrolling (not even started)
* - hysteresis during wrapping (related to scrollbars appearing/disappearing)
* - find/replace
* - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
* - italic caret with italic fonts
* - IME
* - most notifications aren't sent at all (the most important ones are)
* - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
* - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
* - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
* - full justification
* - hyphenation
* - tables
*
* Bugs that are probably fixed, but not so easy to verify:
* - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
* - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
* - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
* - caret shouldn't be displayed when selection isn't empty
* - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
* - undo for setting default format (done, might be buggy)
* - styles might be not released properly (looks like they work like charm, but who knows?
*
*/
#include "editor.h"
#include "commdlg.h"
#include "ole2.h"
#include "richole.h"
#include "winreg.h"
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "rtf.h"
WINE_DEFAULT_DEBUG_CHANNEL(richedit);
int me_debug = 0;
HANDLE me_heap = NULL;
static ME_TextBuffer *ME_MakeText(void) {
ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
p1->prev = NULL;
p1->next = p2;
p2->prev = p1;
p2->next = NULL;
p1->member.para.next_para = p2;
p2->member.para.prev_para = p1;
p2->member.para.nCharOfs = 0;
buf->pFirst = p1;
buf->pLast = p2;
buf->pCharStyle = NULL;
return buf;
}
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
{
WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
WCHAR *pText;
TRACE("%08lx %p\n", dwFormat, stream);
do {
long nWideChars = 0;
if (!stream->dwSize)
{
ME_StreamInFill(stream);
if (stream->editstream->dwError)
break;
if (!stream->dwSize)
break;
}
if (!(dwFormat & SF_UNICODE))
{
/* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
pText = wszText;
}
else
{
nWideChars = stream->dwSize >> 1;
pText = (WCHAR *)stream->buffer;
}
ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
if (stream->dwSize == 0)
break;
stream->dwSize = 0;
} while(1);
ME_CommitUndo(editor);
ME_Repaint(editor);
return 0;
}
static void ME_RTFCharAttrHook(RTF_Info *info)
{
CHARFORMAT2W fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
switch(info->rtfMinor)
{
case rtfPlain:
/* FIXME add more flags once they're implemented */
fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
fmt.yHeight = 12*20; /* 12pt */
fmt.wWeight = 400;
break;
case rtfBold:
fmt.dwMask = CFM_BOLD;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfItalic:
fmt.dwMask = CFM_ITALIC;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfUnderline:
fmt.dwMask = CFM_UNDERLINE;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
fmt.bUnderlineType = CFU_CF1UNDERLINE;
break;
case rtfNoUnderline:
fmt.dwMask = CFM_UNDERLINE;
fmt.dwEffects = 0;
break;
case rtfStrikeThru:
fmt.dwMask = CFM_STRIKEOUT;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfSubScript:
case rtfSuperScript:
case rtfSubScrShrink:
case rtfSuperScrShrink:
case rtfNoSuperSub:
fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
break;
case rtfBackColor:
fmt.dwMask = CFM_BACKCOLOR;
fmt.dwEffects = 0;
if (info->rtfParam == 0)
fmt.dwEffects = CFE_AUTOBACKCOLOR;
else if (info->rtfParam != rtfNoParam)
{
RTFColor *c = RTFGetColor(info, info->rtfParam);
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
}
break;
case rtfForeColor:
fmt.dwMask = CFM_COLOR;
fmt.dwEffects = 0;
if (info->rtfParam == 0)
fmt.dwEffects = CFE_AUTOCOLOR;
else if (info->rtfParam != rtfNoParam)
{
RTFColor *c = RTFGetColor(info, info->rtfParam);
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
}
break;
case rtfFontNum:
if (info->rtfParam != rtfNoParam)
{
RTFFont *f = RTFGetFont(info, info->rtfParam);
if (f)
{
MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
fmt.bCharSet = f->rtfFCharSet;
fmt.dwMask = CFM_FACE | CFM_CHARSET;
}
}
break;
case rtfFontSize:
fmt.dwMask = CFM_SIZE;
if (info->rtfParam != rtfNoParam)
fmt.yHeight = info->rtfParam*10;
break;
}
if (fmt.dwMask) {
ME_Style *style2;
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ? */
style2 = ME_ApplyStyle(info->style, &fmt);
ME_ReleaseStyle(info->style);
info->style = style2;
info->styleChanged = TRUE;
}
}
/* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
the same tags mean different things in different contexts */
static void ME_RTFParAttrHook(RTF_Info *info)
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
switch(info->rtfMinor)
{
case rtfParDef: /* I'm not 100% sure what does it do, but I guess it restores default paragraph attributes */
fmt.dwMask = PFM_ALIGNMENT | PFM_TABSTOPS | PFM_OFFSET | PFM_STARTINDENT;
fmt.wAlignment = PFA_LEFT;
fmt.cTabCount = 0;
fmt.dxOffset = fmt.dxStartIndent = 0;
break;
case rtfFirstIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask = PFM_STARTINDENT;
fmt.dxStartIndent = info->rtfParam + fmt.dxOffset;
break;
case rtfLeftIndent:
{
int first, left;
ME_GetSelectionParaFormat(info->editor, &fmt);
first = fmt.dxStartIndent;
left = info->rtfParam;
fmt.dwMask = PFM_STARTINDENT|PFM_OFFSET;
fmt.dxStartIndent = first + left;
fmt.dxOffset = -first;
break;
}
case rtfRightIndent:
fmt.dwMask = PFM_RIGHTINDENT;
fmt.dxRightIndent = info->rtfParam;
break;
case rtfQuadLeft:
case rtfQuadJust:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_LEFT;
break;
case rtfQuadRight:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_RIGHT;
break;
case rtfQuadCenter:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_CENTER;
break;
case rtfTabPos:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_TABSTOPS))
{
fmt.dwMask |= PFM_TABSTOPS;
fmt.cTabCount = 0;
}
if (fmt.cTabCount < MAX_TAB_STOPS)
fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
break;
}
if (fmt.dwMask) {
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ?*/
ME_SetSelectionParaFormat(info->editor, &fmt);
}
}
static void ME_RTFReadHook(RTF_Info *info) {
switch(info->rtfClass)
{
case rtfGroup:
switch(info->rtfMajor)
{
case rtfBeginGroup:
if (info->stackTop < maxStack) {
memcpy(&info->stack[info->stackTop].fmt, &info->style->fmt, sizeof(CHARFORMAT2W));
info->stack[info->stackTop].codePage = info->codePage;
info->stack[info->stackTop].unicodeLength = info->unicodeLength;
}
info->stackTop++;
info->styleChanged = FALSE;
break;
case rtfEndGroup:
{
ME_Style *s;
RTFFlushOutputBuffer(info);
if (info->stackTop<=1) {
info->rtfClass = rtfEOF;
return;
}
info->stackTop--;
assert(info->stackTop >= 0);
if (info->styleChanged)
{
/* FIXME too slow ? how come ? */
s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
ME_ReleaseStyle(info->style);
info->style = s;
info->codePage = info->stack[info->stackTop].codePage;
info->unicodeLength = info->stack[info->stackTop].unicodeLength;
}
break;
}
}
break;
case rtfControl:
switch(info->rtfMajor)
{
case rtfCharAttr:
ME_RTFCharAttrHook(info);
break;
case rtfParAttr:
ME_RTFParAttrHook(info);
break;
}
break;
}
}
void
ME_StreamInFill(ME_InStream *stream)
{
stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
(BYTE *)stream->buffer,
sizeof(stream->buffer),
(LONG *)&stream->dwSize);
stream->dwUsed = 0;
}
static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
{
RTF_Info parser;
ME_Style *style;
int from, to, to2, nUndoMode;
ME_UndoItem *pUI;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, (UINT)format);
editor->nEventMask = 0;
ME_GetSelection(editor, &from, &to);
if (format & SFF_SELECTION) {
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to-from);
}
else {
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
from = to = 0;
ME_ClearTempStyle(editor);
/* FIXME restore default paragraph formatting ! */
}
nUndoMode = editor->nUndoMode;
editor->nUndoMode = umIgnore;
inStream.editstream = stream;
inStream.editstream->dwError = 0;
inStream.dwSize = 0;
inStream.dwUsed = 0;
if (format & SF_RTF)
{
/* Check if it's really RTF, and if it is not, use plain text */
ME_StreamInFill(&inStream);
if (!inStream.editstream->dwError)
{
if (strncmp(inStream.buffer, "{\\rtf1", 6) && strncmp(inStream.buffer, "{\\urtf", 6))
{
format &= ~SF_RTF;
format |= SF_TEXT;
}
}
}
if (!inStream.editstream->dwError)
{
if (format & SF_RTF) {
/* setup the RTF parser */
memset(&parser, 0, sizeof parser);
RTFSetEditStream(&parser, &inStream);
parser.rtfFormat = format&(SF_TEXT|SF_RTF);
parser.hwndEdit = editor->hWnd;
parser.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
RTFDestroy(&parser);
style = parser.style;
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, &inStream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
ME_GetSelection(editor, &to, &to2);
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
else
{
/* FIXME where to put cursor now ? */
}
}
editor->nUndoMode = nUndoMode;
pUI = ME_AddUndoItem(editor, diUndoDeleteRun, NULL);
TRACE("from %d to %d\n", from, to);
if (pUI && from < to)
{
pUI->nStart = from;
pUI->nLen = to-from;
}
ME_CommitUndo(editor);
ME_ReleaseStyle(style);
editor->nEventMask = nEventMask;
if (editor->bRedraw)
{
InvalidateRect(editor->hWnd, NULL, TRUE);
ME_UpdateRepaint(editor);
}
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
ME_MoveCaret(editor);
ME_SendSelChange(editor);
ME_SendRequestResize(editor, FALSE);
return 0;
}
ME_DisplayItem *
ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
{
ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
item = ME_FindItemFwd(item, diParagraph);
if (!item)
return item;
nOffset -= item->member.para.nCharOfs;
if (nItemType == diParagraph) {
if (nItemOffset)
*nItemOffset = nOffset;
return item;
}
do {
item = ME_FindItemFwd(item, diRun);
} while (item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nOffset));
if (item) {
nOffset -= item->member.run.nCharOfs;
if (nItemOffset)
*nItemOffset = nOffset;
}
return item;
}
static int
ME_FindText(ME_TextEditor *editor, DWORD flags, CHARRANGE *chrg, WCHAR *text, CHARRANGE *chrgText)
{
int nStart, nEnd;
int nLen = lstrlenW(text);
int nMin, nMax;
ME_DisplayItem *item;
ME_DisplayItem *para;
TRACE("flags==0x%08lx, chrg->cpMin==%ld, chrg->cpMax==%ld text==%s\n",
flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
if (!(flags & FR_MATCHCASE))
FIXME("Case-insensitive search not implemented\n");
if (flags & ~(FR_DOWN | FR_MATCHCASE))
FIXME("Flags 0x%08lx not implemented\n", flags & ~(FR_DOWN | FR_MATCHCASE));
if (chrg->cpMax == -1)
{
nMin = chrg->cpMin;
nMax = ME_GetTextLength(editor);
}
else
{
nMin = min(chrg->cpMin, chrg->cpMax);
nMax = max(chrg->cpMin, chrg->cpMax);
}
if (!nLen)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = ((flags & FR_DOWN) ? nMin : nMax);
return chrgText->cpMin;
}
if (flags & FR_DOWN) /* Forward search */
{
nStart = nMin;
item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
if (!item)
return -1;
para = ME_GetParagraph(item);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen < nMax)
{
ME_DisplayItem *pCurItem = item;
int nCurStart = nStart;
int nMatched = 0;
while (pCurItem && pCurItem->member.run.strText->szData[nCurStart + nMatched] == text[nMatched])
{
nMatched++;
if (nMatched == nLen)
{
nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
if (chrgText)
{
chrgText->cpMin = nStart;
chrgText->cpMax = nStart + nLen;
}
TRACE("found at %d-%d\n", nStart, nStart + nLen);
return nStart;
}
if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
{
pCurItem = ME_FindItemFwd(pCurItem, diRun);
para = ME_GetParagraph(pCurItem);
nCurStart = -nMatched;
}
}
nStart++;
if (nStart == ME_StrLen(item->member.run.strText))
{
item = ME_FindItemFwd(item, diRun);
para = ME_GetParagraph(item);
nStart = 0;
}
}
}
else /* Backward search */
{
nEnd = nMax;
item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
if (!item)
return -1;
para = ME_GetParagraph(item);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
{
ME_DisplayItem *pCurItem = item;
int nCurEnd = nEnd;
int nMatched = 0;
while (pCurItem && pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1] == text[nLen - nMatched - 1])
{
nMatched++;
if (nMatched == nLen)
{
nStart = para->member.para.nCharOfs + item->member.run.nCharOfs + nCurEnd - nMatched;
if (chrgText)
{
chrgText->cpMin = nStart;
chrgText->cpMax = nStart + nLen;
}
TRACE("found at %d-%d\n", nStart, nStart + nLen);
return nStart;
}
if (nCurEnd - nMatched == 0)
{
pCurItem = ME_FindItemBack(pCurItem, diRun);
para = ME_GetParagraph(pCurItem);
nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
}
}
nEnd--;
if (nEnd < 0)
{
item = ME_FindItemBack(item, diRun);
para = ME_GetParagraph(item);
nEnd = ME_StrLen(item->member.run.strText);
}
}
}
TRACE("not found\n");
return -1;
}
ME_TextEditor *ME_MakeEditor(HWND hWnd) {
ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
HDC hDC;
int i;
ed->hWnd = hWnd;
ed->bEmulateVersion10 = FALSE;
ed->pBuffer = ME_MakeText();
hDC = GetDC(hWnd);
ME_MakeFirstParagraph(hDC, ed->pBuffer);
ReleaseDC(hWnd, hDC);
ed->bCaretShown = FALSE;
ed->nCursors = 3;
ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
ed->pCursors[0].nOffset = 0;
ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
ed->pCursors[1].nOffset = 0;
ed->nLastTotalLength = ed->nTotalLength = 0;
ed->nUDArrowX = -1;
ed->nSequence = 0;
ed->rgbBackColor = -1;
ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
ed->bCaretAtEnd = FALSE;
ed->nEventMask = 0;
ed->nModifyStep = 0;
ed->pUndoStack = ed->pRedoStack = NULL;
ed->nUndoMode = umAddToUndo;
ed->nParagraphs = 1;
ed->nLastSelStart = ed->nLastSelEnd = 0;
ed->nScrollPosY = 0;
ed->nZoomNumerator = ed->nZoomDenominator = 0;
ed->bRedraw = TRUE;
GetClientRect(hWnd, &ed->rcFormat);
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
ed->pFontCache[i].nRefs = 0;
ed->pFontCache[i].nAge = 0;
ed->pFontCache[i].hFont = NULL;
}
ME_CheckCharOffsets(ed);
return ed;
}
typedef struct tagME_GlobalDestStruct
{
HGLOBAL hData;
int nLength;
} ME_GlobalDestStruct;
static DWORD CALLBACK ME_AppendToHGLOBAL(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int nMaxSize;
BYTE *pDest;
nMaxSize = GlobalSize(pData->hData);
if (pData->nLength+cb+1 >= cb)
{
/* round up to 2^17 */
int nNewSize = (((nMaxSize+cb+1)|0x1FFFF)+1) & 0xFFFE0000;
pData->hData = GlobalReAlloc(pData->hData, nNewSize, 0);
}
pDest = (BYTE *)GlobalLock(pData->hData);
memcpy(pDest + pData->nLength, lpBuff, cb);
pData->nLength += cb;
pDest[pData->nLength] = '\0';
GlobalUnlock(pData->hData);
*pcb = cb;
return 0;
}
static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int i;
WORD *pSrc, *pDest;
cb = cb >> 1;
pDest = (WORD *)lpBuff;
pSrc = (WORD *)GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = 2*i;
GlobalUnlock(pData->hData);
return 0;
}
static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int i;
BYTE *pSrc, *pDest;
pDest = lpBuff;
pSrc = (BYTE *)GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = i;
GlobalUnlock(pData->hData);
return 0;
}
void ME_DestroyEditor(ME_TextEditor *editor)
{
ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
ME_DisplayItem *p = pFirst, *pNext = NULL;
int i;
ME_ClearTempStyle(editor);
ME_EmptyUndoStack(editor);
while(p) {
pNext = p->next;
ME_DestroyDisplayItem(p);
p = pNext;
}
ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
if (editor->pFontCache[i].hFont)
DeleteObject(editor->pFontCache[i].hFont);
}
DeleteObject(editor->hbrBackground);
FREE_OBJ(editor);
}
static WCHAR wszClassName[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
static WCHAR wszClassName50[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("\n");
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
me_heap = HeapCreate (0, 0x10000, 0);
ME_RegisterEditorClass(hinstDLL);
break;
case DLL_PROCESS_DETACH:
UnregisterClassW(wszClassName, 0);
UnregisterClassW(wszClassName50, 0);
UnregisterClassA("RichEdit20A", 0);
UnregisterClassA("RichEdit50A", 0);
HeapDestroy (me_heap);
me_heap = NULL;
break;
}
return TRUE;
}
#define UNSUPPORTED_MSG(e) \
case e: \
FIXME(#e ": stub\n"); \
return DefWindowProcW(hWnd, msg, wParam, lParam);
static const char * const edit_messages[] = {
"EM_GETSEL",
"EM_SETSEL",
"EM_GETRECT",
"EM_SETRECT",
"EM_SETRECTNP",
"EM_SCROLL",
"EM_LINESCROLL",
"EM_SCROLLCARET",
"EM_GETMODIFY",
"EM_SETMODIFY",
"EM_GETLINECOUNT",
"EM_LINEINDEX",
"EM_SETHANDLE",
"EM_GETHANDLE",
"EM_GETTHUMB",
"EM_UNKNOWN_BF",
"EM_UNKNOWN_C0",
"EM_LINELENGTH",
"EM_REPLACESEL",
"EM_UNKNOWN_C3",
"EM_GETLINE",
"EM_LIMITTEXT",
"EM_CANUNDO",
"EM_UNDO",
"EM_FMTLINES",
"EM_LINEFROMCHAR",
"EM_UNKNOWN_CA",
"EM_SETTABSTOPS",
"EM_SETPASSWORDCHAR",
"EM_EMPTYUNDOBUFFER",
"EM_GETFIRSTVISIBLELINE",
"EM_SETREADONLY",
"EM_SETWORDBREAKPROC",
"EM_GETWORDBREAKPROC",
"EM_GETPASSWORDCHAR",
"EM_SETMARGINS",
"EM_GETMARGINS",
"EM_GETLIMITTEXT",
"EM_POSFROMCHAR",
"EM_CHARFROMPOS"
};
static const char * const richedit_messages[] = {
"EM_CANPASTE",
"EM_DISPLAYBAND",
"EM_EXGETSEL",
"EM_EXLIMITTEXT",
"EM_EXLINEFROMCHAR",
"EM_EXSETSEL",
"EM_FINDTEXT",
"EM_FORMATRANGE",
"EM_GETCHARFORMAT",
"EM_GETEVENTMASK",
"EM_GETOLEINTERFACE",
"EM_GETPARAFORMAT",
"EM_GETSELTEXT",
"EM_HIDESELECTION",
"EM_PASTESPECIAL",
"EM_REQUESTRESIZE",
"EM_SELECTIONTYPE",
"EM_SETBKGNDCOLOR",
"EM_SETCHARFORMAT",
"EM_SETEVENTMASK",
"EM_SETOLECALLBACK",
"EM_SETPARAFORMAT",
"EM_SETTARGETDEVICE",
"EM_STREAMIN",
"EM_STREAMOUT",
"EM_GETTEXTRANGE",
"EM_FINDWORDBREAK",
"EM_SETOPTIONS",
"EM_GETOPTIONS",
"EM_FINDTEXTEX",
"EM_GETWORDBREAKPROCEX",
"EM_SETWORDBREAKPROCEX",
"EM_SETUNDOLIMIT",
"EM_UNKNOWN_USER_83",
"EM_REDO",
"EM_CANREDO",
"EM_GETUNDONAME",
"EM_GETREDONAME",
"EM_STOPGROUPTYPING",
"EM_SETTEXTMODE",
"EM_GETTEXTMODE",
"EM_AUTOURLDETECT",
"EM_GETAUTOURLDETECT",
"EM_SETPALETTE",
"EM_GETTEXTEX",
"EM_GETTEXTLENGTHEX",
"EM_SHOWSCROLLBAR",
"EM_SETTEXTEX",
"EM_UNKNOWN_USER_98",
"EM_UNKNOWN_USER_99",
"EM_SETPUNCTUATION",
"EM_GETPUNCTUATION",
"EM_SETWORDWRAPMODE",
"EM_GETWORDWRAPMODE",
"EM_SETIMECOLOR",
"EM_GETIMECOLOR",
"EM_SETIMEOPTIONS",
"EM_GETIMEOPTIONS",
"EM_CONVPOSITION",
"EM_UNKNOWN_USER_109",
"EM_UNKNOWN_USER_110",
"EM_UNKNOWN_USER_111",
"EM_UNKNOWN_USER_112",
"EM_UNKNOWN_USER_113",
"EM_UNKNOWN_USER_114",
"EM_UNKNOWN_USER_115",
"EM_UNKNOWN_USER_116",
"EM_UNKNOWN_USER_117",
"EM_UNKNOWN_USER_118",
"EM_UNKNOWN_USER_119",
"EM_SETLANGOPTIONS",
"EM_GETLANGOPTIONS",
"EM_GETIMECOMPMODE",
"EM_FINDTEXTW",
"EM_FINDTEXTEXW",
"EM_RECONVERSION",
"EM_SETIMEMODEBIAS",
"EM_GETIMEMODEBIAS"
};
static const char *
get_msg_name(UINT msg)
{
if (msg >= EM_GETSEL && msg <= EM_SETLIMITTEXT)
return edit_messages[msg - EM_GETSEL];
if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
return richedit_messages[msg - EM_CANPASTE];
return "";
}
/******************************************************************
* RichEditANSIWndProc (RICHED20.10)
*/
LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
SCROLLINFO si;
ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
TRACE("hWnd %p msg %04x (%s) %08x %08lx\n",
hWnd, msg, get_msg_name(msg), wParam, lParam);
switch(msg) {
UNSUPPORTED_MSG(EM_AUTOURLDETECT)
UNSUPPORTED_MSG(EM_DISPLAYBAND)
UNSUPPORTED_MSG(EM_EXLIMITTEXT)
UNSUPPORTED_MSG(EM_FINDWORDBREAK)
UNSUPPORTED_MSG(EM_FMTLINES)
UNSUPPORTED_MSG(EM_FORMATRANGE)
UNSUPPORTED_MSG(EM_GETAUTOURLDETECT)
UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_GETEDITSTYLE)
UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
/* UNSUPPORTED_MSG(EM_GETIMESTATUS) missing in Wine headers */
UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
UNSUPPORTED_MSG(EM_GETLIMITTEXT)
UNSUPPORTED_MSG(EM_GETLINE)
/* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
UNSUPPORTED_MSG(EM_GETOPTIONS)
UNSUPPORTED_MSG(EM_GETPASSWORDCHAR)
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETSCROLLPOS)
UNSUPPORTED_MSG(EM_GETTEXTMODE)
UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_GETUNDONAME)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROC)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_HIDESELECTION)
UNSUPPORTED_MSG(EM_LIMITTEXT) /* also known as EM_SETLIMITTEXT */
UNSUPPORTED_MSG(EM_PASTESPECIAL)
UNSUPPORTED_MSG(EM_SCROLL)
UNSUPPORTED_MSG(EM_SCROLLCARET)
UNSUPPORTED_MSG(EM_SELECTIONTYPE)
UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_SETEDITSTYLE)
UNSUPPORTED_MSG(EM_SETFONTSIZE)
UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
UNSUPPORTED_MSG(EM_SETOLECALLBACK)
UNSUPPORTED_MSG(EM_SETOPTIONS)
UNSUPPORTED_MSG(EM_SETPALETTE)
UNSUPPORTED_MSG(EM_SETPASSWORDCHAR)
UNSUPPORTED_MSG(EM_SETSCROLLPOS)
UNSUPPORTED_MSG(EM_SETTABSTOPS)
UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
UNSUPPORTED_MSG(EM_SETTEXTMODE)
UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_SETUNDOLIMIT)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROC)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_SHOWSCROLLBAR)
UNSUPPORTED_MSG(WM_SETFONT)
UNSUPPORTED_MSG(WM_STYLECHANGING)
UNSUPPORTED_MSG(WM_STYLECHANGED)
/* UNSUPPORTED_MSG(WM_UNICHAR) FIXME missing in Wine headers */
/* Messages specific to Richedit controls */
case EM_STREAMIN:
return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam);
case EM_STREAMOUT:
return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
case WM_GETDLGCODE:
{
UINT code = DLGC_WANTCHARS|DLGC_WANTARROWS;
if (GetWindowLongW(hWnd, GWL_STYLE)&ES_WANTRETURN)
code |= 0; /* FIXME what can we do here ? ask for messages and censor them ? */
return code;
}
case WM_NCCREATE:
{
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
TRACE("WM_NCCREATE: style 0x%08lx\n", pcs->style);
editor = ME_MakeEditor(hWnd);
SetWindowLongW(hWnd, 0, (long)editor);
pcs = 0; /* ignore */
return TRUE;
}
case EM_EMPTYUNDOBUFFER:
ME_EmptyUndoStack(editor);
return 0;
case EM_GETSEL:
{
/* Note: wParam/lParam can be NULL */
UINT from, to;
PUINT pfrom = wParam ? (PUINT)wParam : &from;
PUINT pto = lParam ? (PUINT)lParam : &to;
ME_GetSelection(editor, (int *)pfrom, (int *)pto);
if ((*pfrom|*pto) & 0xFFFF0000)
return -1;
return MAKELONG(*pfrom,*pto);
}
case EM_EXGETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
TRACE("EM_EXGETSEL = (%ld,%ld)\n", pRange->cpMin, pRange->cpMax);
return 0;
}
case EM_CANUNDO:
return editor->pUndoStack != NULL;
case EM_CANREDO:
return editor->pRedoStack != NULL;
case WM_UNDO: /* FIXME: actually not the same */
case EM_UNDO:
ME_Undo(editor);
return 0;
case EM_REDO:
ME_Redo(editor);
return 0;
case EM_SETSEL:
{
ME_SetSelection(editor, wParam, lParam);
ME_Repaint(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_EXSETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
TRACE("EM_EXSETSEL (%ld,%ld)\n", pRange->cpMin, pRange->cpMax);
ME_SetSelection(editor, pRange->cpMin, pRange->cpMax);
/* FIXME optimize */
ME_Repaint(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_SETTEXTEX:
{
LPWSTR wszText = (LPWSTR)lParam;
SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
size_t len = lstrlenW(wszText);
int from, to;
ME_Style *style;
TRACE("EM_SETTEXEX - %s, flags %d, cp %d\n", debugstr_w(wszText), (int)pStruct->flags, pStruct->codepage);
if (pStruct->codepage != 1200) {
FIXME("EM_SETTEXTEX only supports unicode right now!\n");
return 0;
}
/* FIXME: this should support RTF strings too, according to MSDN */
if (pStruct->flags & ST_SELECTION) {
ME_GetSelection(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to - from);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
}
else {
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
len = 1;
}
ME_CommitUndo(editor);
if (!(pStruct->flags & ST_KEEPUNDO))
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return len;
}
case EM_SETBKGNDCOLOR:
{
LRESULT lColor = ME_GetBackColor(editor);
if (editor->rgbBackColor != -1)
DeleteObject(editor->hbrBackground);
if (wParam)
{
editor->rgbBackColor = -1;
editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
}
else
{
editor->rgbBackColor = lParam;
editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
}
if (editor->bRedraw)
{
InvalidateRect(hWnd, NULL, TRUE);
UpdateWindow(hWnd);
}
return lColor;
}
case EM_GETMODIFY:
return editor->nModifyStep == 0 ? 0 : 1;
case EM_SETMODIFY:
{
if (wParam)
editor->nModifyStep = 0x80000000;
else
editor->nModifyStep = 0;
return 0;
}
case EM_SETREADONLY:
{
long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
if (wParam)
nStyle |= ES_READONLY;
else
nStyle &= ~ES_READONLY;
SetWindowLongW(hWnd, GWL_STYLE, nStyle);
ME_Repaint(editor);
return 0;
}
case EM_SETEVENTMASK:
{
DWORD nOldMask = editor->nEventMask;
editor->nEventMask = lParam;
return nOldMask;
}
case EM_GETEVENTMASK:
return editor->nEventMask;
case EM_SETCHARFORMAT:
{
CHARFORMAT2W buf, *p;
BOOL bRepaint = TRUE;
p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
if (!wParam)
ME_SetDefaultCharFormat(editor, p);
else if (wParam == (SCF_WORD | SCF_SELECTION))
FIXME("EM_SETCHARFORMAT: word selection not supported\n");
else if (wParam == SCF_ALL)
ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
else {
int from, to;
ME_GetSelection(editor, &from, &to);
bRepaint = (from != to);
ME_SetSelectionCharFormat(editor, p);
}
ME_CommitUndo(editor);
if (bRepaint)
ME_UpdateRepaint(editor);
return 0;
}
case EM_GETCHARFORMAT:
{
CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
if (dst->cbSize != sizeof(CHARFORMATA) &&
dst->cbSize != sizeof(CHARFORMATW) &&
dst->cbSize != sizeof(CHARFORMAT2A) &&
dst->cbSize != sizeof(CHARFORMAT2W))
return 0;
tmp.cbSize = sizeof(tmp);
if (!wParam)
ME_GetDefaultCharFormat(editor, &tmp);
else
ME_GetSelectionCharFormat(editor, &tmp);
ME_CopyToCFAny(dst, &tmp);
return tmp.dwMask;
}
case EM_SETPARAFORMAT:
ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
ME_UpdateRepaint(editor);
ME_CommitUndo(editor);
return 0;
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return 0;
case EM_GETFIRSTVISIBLELINE:
{
ME_DisplayItem *p = editor->pBuffer->pFirst;
int y = editor->nScrollPosY;
int ypara = 0;
int count = 0;
int ystart, yend;
while(p) {
p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
if (p->type == diTextEnd)
break;
if (p->type == diParagraph) {
ypara = p->member.para.nYPos;
continue;
}
ystart = ypara + p->member.row.nYPos;
yend = ystart + p->member.row.nHeight;
if (y < yend) {
break;
}
count++;
}
return count;
}
case EM_LINESCROLL:
{
int nPos = editor->nScrollPosY, nEnd= editor->nTotalLength - editor->sizeWindow.cy;
nPos += 8 * lParam; /* FIXME follow the original */
if (nPos>=nEnd)
nPos = nEnd;
if (nPos<0)
nPos = 0;
if (nPos != editor->nScrollPosY) {
int dy = editor->nScrollPosY - nPos;
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
if (editor->bRedraw)
{
ScrollWindow(hWnd, 0, dy, NULL, NULL);
UpdateWindow(hWnd);
}
}
return TRUE; /* Should return false if a single line richedit control */
}
case WM_CLEAR:
{
int from, to;
ME_GetSelection(editor, &from, &to);
ME_InternalDeleteText(editor, from, to-from);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case EM_REPLACESEL:
{
int from, to;
ME_Style *style;
LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
size_t len = lstrlenW(wszText);
TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
ME_GetSelection(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to-from);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
ME_EndToUnicode(hWnd, wszText);
/* drop temporary style if line end */
/* FIXME question: does abc\n mean: put abc, clear temp style, put \n? (would require a change) */
if (len>0 && wszText[len-1] == '\n')
ME_ClearTempStyle(editor);
ME_CommitUndo(editor);
if (!wParam)
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return 0;
}
case WM_SETTEXT:
{
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
if (lParam)
{
LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
TRACE("WM_SETTEXT lParam==%lx\n",lParam);
TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
if (lstrlenW(wszText) > 0)
{
/* uses default style! */
ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
}
ME_EndToUnicode(hWnd, wszText);
}
else
TRACE("WM_SETTEXT - NULL\n");
ME_CommitUndo(editor);
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return 0;
}
case EM_CANPASTE:
{
UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
if (IsClipboardFormatAvailable(nRTFFormat))
return TRUE;
if (IsClipboardFormatAvailable(CF_UNICODETEXT))
return TRUE;
return FALSE;
}
case WM_PASTE:
{
DWORD dwFormat = 0;
EDITSTREAM es;
ME_GlobalDestStruct gds;
UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
UINT cf = 0;
if (IsClipboardFormatAvailable(nRTFFormat))
cf = nRTFFormat, dwFormat = SF_RTF;
else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
else
return 0;
if (!OpenClipboard(hWnd))
return 0;
gds.hData = GetClipboardData(cf);
gds.nLength = 0;
es.dwCookie = (DWORD)&gds;
es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
SendMessageW(hWnd, EM_STREAMIN, dwFormat|SFF_SELECTION, (LPARAM)&es);
CloseClipboard();
return 0;
}
case WM_CUT:
case WM_COPY:
{
int from, to, pars;
WCHAR *data;
HANDLE hData;
EDITSTREAM es;
ME_GlobalDestStruct gds;
if (!OpenClipboard(hWnd))
return 0;
EmptyClipboard();
ME_GetSelection(editor, &from, &to);
pars = ME_CountParagraphsBetween(editor, from, to);
hData = GlobalAlloc(GMEM_MOVEABLE, sizeof(WCHAR)*(to-from+pars+1));
data = (WCHAR *)GlobalLock(hData);
ME_GetTextW(editor, data, from, to-from, TRUE);
GlobalUnlock(hData);
gds.hData = GlobalAlloc(GMEM_MOVEABLE, 0);
gds.nLength = 0;
es.dwCookie = (DWORD)&gds;
es.pfnCallback = ME_AppendToHGLOBAL;
SendMessageW(hWnd, EM_STREAMOUT, SFF_SELECTION|SF_RTF, (LPARAM)&es);
GlobalReAlloc(gds.hData, gds.nLength+1, 0);
SetClipboardData(CF_UNICODETEXT, hData);
SetClipboardData(RegisterClipboardFormatA("Rich Text Format"), gds.hData);
CloseClipboard();
if (msg == WM_CUT)
{
ME_InternalDeleteText(editor, from, to-from);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
case WM_GETTEXTLENGTH:
return ME_GetTextLength(editor);
case EM_GETTEXTLENGTHEX:
return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
case WM_GETTEXT:
{
TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
tr.chrg.cpMin = 0;
tr.chrg.cpMax = wParam-1;
tr.lpstrText = (WCHAR *)lParam;
return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
}
case EM_GETTEXTEX:
{
GETTEXTEX *ex = (GETTEXTEX*)wParam;
int nStart, nCount;
if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
FIXME("GETTEXTEX flags 0x%08lx not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
if (ex->flags & GT_SELECTION)
{
ME_GetSelection(editor, &nStart, &nCount);
nCount -= nStart;
nCount = min(nCount, ex->cb - 1);
}
else
{
nStart = 0;
nCount = ex->cb - 1;
}
if (ex->codepage == 1200 || IsWindowUnicode(hWnd))
{
nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
}
else
{
/* potentially each char may be a CR, why calculate the exact value with O(N) when
we can just take a bigger buffer? :) */
int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
LPWSTR buffer = HeapAlloc(GetProcessHeap(), 0, (crlfmul*nCount + 1) * sizeof(WCHAR));
DWORD buflen = ex->cb;
LRESULT rc;
DWORD flags = 0;
buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefaultChar);
HeapFree(GetProcessHeap(),0,buffer);
return rc;
}
}
case EM_GETSELTEXT:
{
int from, to;
TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
ME_GetSelection(editor, &from, &to);
tr.chrg.cpMin = from;
tr.chrg.cpMax = to;
tr.lpstrText = (WCHAR *)lParam;
return RichEditANSIWndProc(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr);
}
case EM_GETTEXTRANGE:
{
TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
TRACE("EM_GETTEXTRANGE min=%ld max=%ld unicode=%d emul1.0=%d length=%d\n",
rng->chrg.cpMin, rng->chrg.cpMax, IsWindowUnicode(hWnd),
editor->bEmulateVersion10, ME_GetTextLength(editor));
if (IsWindowUnicode(hWnd))
return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, editor->bEmulateVersion10);
else
{
int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, editor->bEmulateVersion10);
/* FIXME this is a potential security hole (buffer overrun)
if you know more about wchar->mbyte conversion please explain
*/
WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
FREE_OBJ(p);
return nChars;
}
}
case EM_GETLINECOUNT:
{
ME_DisplayItem *item = editor->pBuffer->pFirst->next;
int nRows = 0;
while (item != editor->pBuffer->pLast)
{
assert(item->type == diParagraph);
nRows += item->member.para.nRows;
item = item->member.para.next_para;
}
TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
return max(1, nRows);
}
case EM_LINEFROMCHAR:
{
if (wParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor, 1));
else
return ME_RowNumberFromCharOfs(editor, wParam);
}
case EM_EXLINEFROMCHAR:
{
return ME_RowNumberFromCharOfs(editor, lParam);
}
case EM_LINEINDEX:
{
ME_DisplayItem *item, *para;
int nCharOfs;
if (wParam == -1)
item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
else
item = ME_FindRowWithNumber(editor, wParam);
if (!item)
return -1;
para = ME_GetParagraph(item);
item = ME_FindItemFwd(item, diRun);
nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
return nCharOfs;
}
case EM_LINELENGTH:
{
ME_DisplayItem *item, *item_end;
int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
if (wParam > ME_GetTextLength(editor))
return 0;
if (wParam == -1)
{
FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
return 0;
}
item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
item = ME_RowStart(item);
nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
item_end = ME_FindItemFwd(item, diStartRow);
if (item_end)
nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
else
nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs
- (editor->bEmulateVersion10?2:1);
nChars = nNextLineOfs - nThisLineOfs;
TRACE("EM_LINELENGTH(%d)==%d\n",wParam, nChars);
return nChars;
}
case EM_FINDTEXT:
{
FINDTEXTA *ft = (FINDTEXTA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
WCHAR *tmp;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
return ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
}
case EM_FINDTEXTEX:
{
FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
WCHAR *tmp;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
return ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
}
case EM_FINDTEXTW:
{
FINDTEXTW *ft = (FINDTEXTW *)lParam;
return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
}
case EM_FINDTEXTEXW:
{
FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
}
case EM_GETZOOM:
if (!wParam || !lParam)
return FALSE;
*(int *)wParam = editor->nZoomNumerator;
*(int *)lParam = editor->nZoomDenominator;
return TRUE;
case EM_SETZOOM:
return ME_SetZoom(editor, wParam, lParam);
case EM_CHARFROMPOS:
return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y);
case EM_POSFROMCHAR:
{
ME_DisplayItem *pRun;
int nCharOfs, nOffset, nLength;
POINTL pt = {0,0};
nCharOfs = wParam;
/* detect which API version we're dealing with */
if (wParam >= 0x40000)
nCharOfs = lParam;
nLength = ME_GetTextLength(editor);
if (nCharOfs < nLength) {
ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
assert(pRun->type == diRun);
pt.y = pRun->member.run.pt.y;
pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
} else {
pt.x = 0;
pt.y = editor->pBuffer->pLast->member.para.nYPos;
}
if (wParam >= 0x40000) {
*(POINTL *)wParam = pt;
}
return MAKELONG( pt.x, pt.y );
}
case WM_CREATE:
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
ME_MoveCaret(editor);
return 0;
case WM_DESTROY:
ME_DestroyEditor(editor);
SetWindowLongW(hWnd, 0, 0);
return 0;
case WM_LBUTTONDOWN:
SetFocus(hWnd);
ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
SetCapture(hWnd);
break;
case WM_MOUSEMOVE:
if (GetCapture() == hWnd)
ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
break;
case WM_LBUTTONUP:
if (GetCapture() == hWnd)
ReleaseCapture();
break;
case WM_PAINT:
if (editor->bRedraw)
{
HDC hDC;
PAINTSTRUCT ps;
hDC = BeginPaint(hWnd, &ps);
ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
EndPaint(hWnd, &ps);
}
break;
case WM_SETFOCUS:
ME_ShowCaret(editor);
ME_SendOldNotify(editor, EN_SETFOCUS);
return 0;
case WM_KILLFOCUS:
ME_HideCaret(editor);
ME_SendOldNotify(editor, EN_KILLFOCUS);
return 0;
case WM_ERASEBKGND:
{
if (editor->bRedraw)
{
HDC hDC = (HDC)wParam;
RECT rc;
if (GetUpdateRect(hWnd,&rc,TRUE))
{
FillRect(hDC, &rc, editor->hbrBackground);
}
}
return 1;
}
case WM_COMMAND:
TRACE("editor wnd command = %d\n", LOWORD(wParam));
return 0;
case WM_KEYDOWN:
if (ME_ArrowKey(editor, LOWORD(wParam), GetKeyState(VK_CONTROL)<0)) {
ME_CommitUndo(editor);
ME_EnsureVisible(editor, editor->pCursors[0].pRun);
HideCaret(hWnd);
ME_MoveCaret(editor);
ShowCaret(hWnd);
return 0;
}
if (GetKeyState(VK_CONTROL)<0)
{
if (LOWORD(wParam)=='W')
{
CHARFORMAT2W chf;
char buf[2048];
ME_GetSelectionCharFormat(editor, &chf);
ME_DumpStyleToBuf(&chf, buf);
MessageBoxA(NULL, buf, "Style dump", MB_OK);
}
if (LOWORD(wParam)=='Q')
{
ME_CheckCharOffsets(editor);
}
}
goto do_default;
case WM_CHAR:
{
WCHAR wstr = LOWORD(wParam);
switch (wstr)
{
case 3: /* Ctrl-C */
SendMessageW(editor->hWnd, WM_COPY, 0, 0);
return 0;
}
if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return 0; /* FIXME really 0 ? */
}
switch (wstr)
{
case 1: /* Ctrl-A */
ME_SetSelection(editor, 0, -1);
return 0;
case 22: /* Ctrl-V */
SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
return 0;
case 24: /* Ctrl-X */
SendMessageW(editor->hWnd, WM_CUT, 0, 0);
return 0;
case 25: /* Ctrl-Y */
SendMessageW(editor->hWnd, EM_REDO, 0, 0);
return 0;
case 26: /* Ctrl-Z */
SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
return 0;
}
if (((unsigned)wstr)>=' ' || wstr=='\r' || wstr=='\t') {
/* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
ME_Style *style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
ME_ReleaseStyle(style);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
case WM_VSCROLL:
{
int nPos = editor->nScrollPosY;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE|SIF_POS|SIF_RANGE|SIF_TRACKPOS;
GetScrollInfo(hWnd, SB_VERT, &si);
switch(LOWORD(wParam)) {
case SB_LINEUP:
nPos -= 24; /* FIXME follow the original */
if (nPos<0) nPos = 0;
break;
case SB_LINEDOWN:
{
int nEnd = editor->nTotalLength - editor->sizeWindow.cy;
nPos += 24; /* FIXME follow the original */
if (nPos>=nEnd) nPos = nEnd;
break;
}
case SB_PAGEUP:
nPos -= editor->sizeWindow.cy;
if (nPos<0) nPos = 0;
break;
case SB_PAGEDOWN:
nPos += editor->sizeWindow.cy;
if (nPos>=editor->nTotalLength) nPos = editor->nTotalLength-1;
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
nPos = si.nTrackPos;
break;
}
if (nPos != editor->nScrollPosY) {
int dy = editor->nScrollPosY - nPos;
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
if (editor->bRedraw)
{
ScrollWindow(hWnd, 0, dy, NULL, NULL);
UpdateWindow(hWnd);
}
}
break;
}
case WM_MOUSEWHEEL:
{
int gcWheelDelta = 0, nPos = editor->nScrollPosY, nEnd = editor->nTotalLength - editor->sizeWindow.cy;
UINT pulScrollLines;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
nPos += pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8; /* FIXME follow the original */
if (nPos>=nEnd)
nPos = nEnd;
if (nPos<0)
nPos = 0;
if (nPos != editor->nScrollPosY) {
int dy = editor->nScrollPosY - nPos;
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
if (editor->bRedraw)
{
ScrollWindow(hWnd, 0, dy, NULL, NULL);
UpdateWindow(hWnd);
}
}
break;
}
case EM_GETRECT:
{
*((RECT *)lParam) = editor->rcFormat;
return 0;
}
case EM_SETRECT:
case EM_SETRECTNP:
{
if (lParam)
{
RECT *rc = (RECT *)lParam;
if (wParam)
{
editor->rcFormat.left += rc->left;
editor->rcFormat.top += rc->top;
editor->rcFormat.right += rc->right;
editor->rcFormat.bottom += rc->bottom;
}
else
{
editor->rcFormat = *rc;
}
}
else
{
GetClientRect(hWnd, &editor->rcFormat);
}
if (msg != EM_SETRECTNP)
ME_RewrapRepaint(editor);
return 0;
}
case EM_REQUESTRESIZE:
ME_SendRequestResize(editor, TRUE);
return 0;
case WM_SETREDRAW:
editor->bRedraw = wParam;
return 0;
case WM_SIZE:
{
GetClientRect(hWnd, &editor->rcFormat);
ME_RewrapRepaint(editor);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
case EM_GETOLEINTERFACE:
{
LPVOID *ppvObj = (LPVOID*) lParam;
FIXME("EM_GETOLEINTERFACE %p: stub\n", ppvObj);
return CreateIRichEditOle(ppvObj);
}
default:
do_default:
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
return 0L;
}
/******************************************************************
* RichEdit10ANSIWndProc (RICHED20.9)
*/
LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
LRESULT result;
/* FIXME: this is NOT the same as 2.0 version */
result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
if (msg == WM_NCCREATE)
{
ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
editor->bEmulateVersion10 = TRUE;
editor->pBuffer->pLast->member.para.nCharOfs = 2;
}
return result;
}
void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
{
HWND hWnd = editor->hWnd;
SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
}
int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
{
ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
int i = 0;
while(item && item->member.para.next_para->member.para.nCharOfs <= from)
item = item->member.para.next_para;
if (!item)
return 0;
while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
item = item->member.para.next_para;
i++;
}
return i;
}
int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
{
ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
int nWritten = 0;
WCHAR *pStart = buffer;
if (!item) {
*buffer = L'\0';
return 0;
}
if (nStart)
{
int nLen = ME_StrLen(item->member.run.strText) - nStart;
if (nLen > nChars)
nLen = nChars;
CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
nChars -= nLen;
nWritten += nLen;
if (!nChars)
return nWritten;
buffer += nLen;
nStart = 0;
item = ME_FindItemFwd(item, diRun);
}
while(nChars && item)
{
int nLen = ME_StrLen(item->member.run.strText);
if (nLen > nChars)
nLen = nChars;
if (item->member.run.nFlags & MERF_ENDPARA)
{
*buffer = '\r';
if (bCRLF)
{
*(++buffer) = '\n';
nWritten++;
}
assert(nLen == 1);
/* our end paragraph consists of 2 characters now */
if (editor->bEmulateVersion10)
nChars--;
}
else
CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
nChars -= nLen;
nWritten += nLen;
buffer += nLen;
if (!nChars)
{
TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
*buffer = L'\0';
return nWritten;
}
item = ME_FindItemFwd(item, diRun);
}
*buffer = L'\0';
TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
return nWritten;
}
void ME_RegisterEditorClass(HINSTANCE hInstance)
{
BOOL bResult;
WNDCLASSW wcW;
WNDCLASSA wcA;
wcW.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcW.lpfnWndProc = RichEditANSIWndProc;
wcW.cbClsExtra = 0;
wcW.cbWndExtra = 4;
wcW.hInstance = NULL; /* hInstance would register DLL-local class */
wcW.hIcon = NULL;
wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcW.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
wcW.lpszMenuName = NULL;
wcW.lpszClassName = wszClassName;
bResult = RegisterClassW(&wcW);
assert(bResult);
wcW.lpszClassName = wszClassName50;
bResult = RegisterClassW(&wcW);
assert(bResult);
wcA.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcA.lpfnWndProc = RichEditANSIWndProc;
wcA.cbClsExtra = 0;
wcA.cbWndExtra = 4;
wcA.hInstance = NULL; /* hInstance would register DLL-local class */
wcA.hIcon = NULL;
wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcA.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
wcA.lpszMenuName = NULL;
wcA.lpszClassName = "RichEdit20A";
bResult = RegisterClassA(&wcA);
assert(bResult);
wcA.lpszClassName = "RichEdit50A";
bResult = RegisterClassA(&wcA);
assert(bResult);
}
/******************************************************************
* CreateTextServices (RICHED20.4)
*
* FIXME should be ITextHost instead of void*
*/
HRESULT WINAPI CreateTextServices(IUnknown *punkOuter, void *pITextHost,
IUnknown **ppUnk)
{
FIXME("stub\n");
/* FIXME should support aggregation */
if (punkOuter)
return CLASS_E_NOAGGREGATION;
return E_FAIL; /* E_NOTIMPL isn't allowed by MSDN */
}
/******************************************************************
* REExtendedRegisterClass (RICHED20.8)
*
* FIXME undocumented
*/
void WINAPI REExtendedRegisterClass(void)
{
FIXME("stub\n");
}
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