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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
- EM_FINDTEXTEX
- EM_FINDWORDBREAK
- EM_FMTLINES
- EM_FORMATRANGE
- EM_GETAUTOURLDETECT 2.0
- EM_GETBIDIOPTIONS 3.0
- EM_GETCHARFORMAT (partly done)
- EM_GETEDITSTYLE
+ EM_GETEVENTMASK
- EM_GETFIRSTVISIBLELINE
- 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
- EM_GETTEXTMODE 2.0
? + EM_GETTEXTRANGE (ANSI&Unicode)
- EM_GETTYPOGRAPHYOPTIONS 3.0
- EM_GETUNDONAME
- EM_GETWORDBREAKPROC
- EM_GETWORDBREAKPROCEX
- EM_GETWORDWRAPMODE 1.0asian
- EM_SETZOOM 3.0
- EM_HIDESELECTION
- EM_LIMITTEXT
- EM_LINEFROMCHAR
- EM_LINEINDEX
- EM_LINELENGTH
+ EM_LINESCROLL
- EM_PASTESPECIAL
- EM_POSFROMCHARS
+ 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) - not supported in RICHEDIT
+ EM_SETSEL
- EM_SETSCROLLPOS 3.0
- EM_SETTABSTOPS 3.0
- EM_SETTARGETDEVICE
- EM_SETTEXTEX 3.0
- 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 (can't fall back to text when the RTF isn't really RTF)
+ 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)
*
* 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 "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;
ME_TextBuffer *ME_MakeText() {
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 < STREAMIN_BUFFER_SIZE)
break;
stream->dwSize = 0;
} while(1);
ME_CommitUndo(editor);
ME_Repaint(editor);
return 0;
}
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;
break;
case rtfStrikeThru:
fmt.dwMask = CFM_STRIKEOUT;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 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;
}
}
/* 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 */
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);
}
}
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++;
break;
case rtfEndGroup:
{
ME_Style *s;
RTFFlushOutputBuffer(info);
info->stackTop--;
/* 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,
stream->buffer,
sizeof(stream->buffer),
&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;
InvalidateRect(editor->hWnd, NULL, TRUE);
ME_UpdateRepaint(editor);
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
ME_MoveCaret(editor);
ME_SendSelChange(editor);
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;
}
ME_TextEditor *ME_MakeEditor(HWND hWnd) {
ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
HDC hDC;
int i;
ed->hWnd = hWnd;
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->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;
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);
}
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);
/******************************************************************
* RichEditANSIWndProc (RICHED20.10)
*/
LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
HDC hDC;
PAINTSTRUCT ps;
SCROLLINFO si;
ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongW(hWnd, 0);
TRACE("msg %d %08x %08lx\n", msg, wParam, lParam);
switch(msg) {
UNSUPPORTED_MSG(EM_AUTOURLDETECT)
UNSUPPORTED_MSG(EM_CHARFROMPOS)
UNSUPPORTED_MSG(EM_DISPLAYBAND)
UNSUPPORTED_MSG(EM_EXLIMITTEXT)
UNSUPPORTED_MSG(EM_EXLINEFROMCHAR)
UNSUPPORTED_MSG(EM_FINDTEXT)
UNSUPPORTED_MSG(EM_FINDTEXTEX)
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_GETFIRSTVISIBLELINE)
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_GETLINECOUNT)
/* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
UNSUPPORTED_MSG(EM_GETOPTIONS)
UNSUPPORTED_MSG(EM_GETPASSWORDCHAR)
UNSUPPORTED_MSG(EM_GETRECT)
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETSCROLLPOS)
UNSUPPORTED_MSG(EM_GETTEXTEX)
UNSUPPORTED_MSG(EM_GETTEXTLENGTHEX)
UNSUPPORTED_MSG(EM_GETTEXTMODE)
UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_GETUNDONAME)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROC)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_GETZOOM)
UNSUPPORTED_MSG(EM_HIDESELECTION)
UNSUPPORTED_MSG(EM_LIMITTEXT) /* also known as EM_SETLIMITTEXT */
UNSUPPORTED_MSG(EM_LINEFROMCHAR)
UNSUPPORTED_MSG(EM_LINEINDEX)
UNSUPPORTED_MSG(EM_LINELENGTH)
UNSUPPORTED_MSG(EM_PASTESPECIAL)
/* UNSUPPORTED_MSG(EM_POSFROMCHARS) missing in Wine headers */
UNSUPPORTED_MSG(EM_REQUESTRESIZE)
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_SETRECT)
UNSUPPORTED_MSG(EM_SETRECTNP)
UNSUPPORTED_MSG(EM_SETSCROLLPOS)
UNSUPPORTED_MSG(EM_SETTABSTOPS)
UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
UNSUPPORTED_MSG(EM_SETTEXTEX)
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(EM_SETZOOM)
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;
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:
{
ME_GetSelection(editor, (int *)wParam, (int *)lParam);
if (!((wParam|lParam) & 0xFFFF0000))
return (lParam<<16)|wParam;
return -1;
}
case EM_EXGETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
ME_GetSelection(editor, (int *)&pRange->cpMin, (int *)&pRange->cpMax);
return 0;
}
case EM_CANUNDO:
return editor->pUndoStack != NULL;
case EM_CANREDO:
return editor->pRedoStack != NULL;
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;
ME_SetSelection(editor, pRange->cpMin, pRange->cpMax);
/* FIXME optimize */
ME_Repaint(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_SETBKGNDCOLOR:
{
LRESULT lColor = ME_GetBackColor(editor);
if (wParam)
editor->rgbBackColor = -1;
else
editor->rgbBackColor = lParam;
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:
editor->nEventMask = lParam;
return 0;
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("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;
tmp.cbSize = sizeof(tmp);
if (!wParam)
ME_GetDefaultCharFormat(editor, &tmp);
else
ME_GetSelectionCharFormat(editor, &tmp);
ME_CopyToCFAny((CHARFORMAT2W *)lParam, &tmp);
return 0;
}
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_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) {
ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
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:
{
LPWSTR wszText = ME_ToUnicode(hWnd, (void *)lParam);
TRACE("WM_SETTEXT - %s\n", (char *)(wszText)); /* debugstr_w() */
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
/* uses default style! */
ME_InsertTextFromCursor(editor, 0, wszText, -1, editor->pBuffer->pDefaultStyle);
ME_EndToUnicode(hWnd, wszText);
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 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_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;
if (IsWindowUnicode(hWnd))
return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, FALSE);
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, FALSE);
/* 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;
}
return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, FALSE);
}
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:
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:
{
HDC hDC = (HDC)wParam;
RECT rc;
COLORREF rgbBG = ME_GetBackColor(editor);
if (GetUpdateRect(hWnd,&rc,TRUE))
{
HBRUSH hbr = CreateSolidBrush(rgbBG);
FillRect(hDC, &rc, hbr);
DeleteObject(hbr);
}
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;
if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return 0; /* FIXME really 0 ? */
}
wstr = LOWORD(wParam);
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) {
ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
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) {
ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
UpdateWindow(hWnd);
}
break;
}
case WM_SIZE:
{
ME_MarkAllForWrapping(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_Repaint(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)
{
/* FIXME: this is NOT the same as 2.0 version */
return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
}
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;
if (!item) {
*buffer = L'\0';
return 0;
}
assert(item);
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)
{
if (bCRLF) {
*buffer++ = '\r';
nWritten++;
}
*buffer = '\n';
assert(nLen == 1);
}
else
CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
nChars -= nLen;
nWritten += nLen;
buffer += nLen;
if (!nChars)
{
*buffer = L'\0';
return nWritten;
}
item = ME_FindItemFwd(item, diRun);
}
*buffer = L'\0';
return nWritten;
}
void ME_RegisterEditorClass(HINSTANCE hInstance)
{
BOOL bResult;
WNDCLASSW wcW;
WNDCLASSA wcA;
wcW.style = CS_HREDRAW | CS_VREDRAW;
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;
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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