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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_GETCHARFORMAT (partly done)
+ 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_GETPUNCTUATION 1.0asian
- EM_GETRECT
- EM_GETREDONAME 2.0
+ EM_GETSEL
+ EM_GETSELTEXT (ANSI&Unicode)
! - EM_GETTHUMB
- EM_GETTEXTMODE 2.0
? + EM_GETTEXTRANGE (ANSI&Unicode)
- EM_GETUNDONAME
- EM_GETWORDBREAKPROC
- EM_GETWORDBREAKPROCEX
- EM_GETWORDWRAPMODE 1.0asian
- 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_SETBKGNDCOLOR
- EM_SETCHARFORMAT (partly done, no ANSI)
+ EM_SETEVENTMASK (few notifications supported)
- 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_SETPARAFORMAT
- 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_SETTARGETDEVICE
- EM_SETTEXTMODE 2.0
- EM_SETUNDOLIMIT 2.0
- EM_SETWORDBREAKPROC
- EM_SETWORDBREAKPROCEX
- EM_SETWORDWRAPMODE 1.0asian
- EM_STOPGROUPTYPING 2.0
- EM_STREAMIN
- EM_STREAMOUT
- EM_UNDO
+ WM_CHAR
+ WM_CLEAR
- WM_COPY (lame implementation, no RTF support)
- WM_CUT (lame implementation, no RTF support)
+ 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):
*
* - font caching
* - add remaining CHARFORMAT/PARAFORMAT fields
* - right/center align should strip spaces from the beginning
* - more advanced navigation (Ctrl-arrows, PageUp/PageDn)
* - tabs
* - pictures (not just smiling faces that lack API support ;-) )
* - OLE objects
* - calculate heights of pictures (half-done)
* - EM_STREAMIN/EM_STREAMOUT
* - horizontal scrolling (not even started)
* - fix scrollbars and refresh (it sucks bigtime)
* - hysteresis during wrapping (related to scrollbars appearing/disappearing)
* - should remember maximum row width for wrap hysteresis
* - find/replace
* - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
* - italic cursor 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 in end-of-text handling (the gray bar) could get me in jail ;-)
* - determination of row size
* - end-of-paragraph marks should be of reasonable size
*
* 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;
void DoWrap(ME_TextEditor *editor) {
HDC hDC = GetDC(editor->hWnd);
ME_DisplayItem *item;
ME_Context c;
HWND hWnd = editor->hWnd;
int yLength = editor->nTotalLength;
int nSelFrom, nSelTo;
int nMinSel, nMaxSel;
ME_GetSelection(editor, &nSelFrom, &nSelTo);
nMinSel = nSelFrom < editor->nOldSelFrom ? nSelFrom : editor->nOldSelFrom;
nMaxSel = nSelTo > editor->nOldSelTo ? nSelTo : editor->nOldSelTo;
ME_InitContext(&c, editor, hDC);
c.pt.x = 0;
c.pt.y = 0;
item = editor->pBuffer->pFirst->next;
while(item != editor->pBuffer->pLast) {
int para_from, para_to;
BOOL bRedraw = FALSE;
para_from = item->member.para.nCharOfs;
para_to = item->member.para.next_para->member.para.nCharOfs;
if (para_from <= nMaxSel && para_to >= nMinSel && nMinSel != nMaxSel)
bRedraw = TRUE;
assert(item->type == diParagraph);
if (!(item->member.para.nFlags & MEPF_WRAPPED)
|| (item->member.para.nYPos != c.pt.y))
bRedraw = TRUE;
item->member.para.nYPos = c.pt.y;
ME_WrapTextParagraph(&c, item);
if (bRedraw) {
item->member.para.nFlags |= MEPF_REDRAW;
}
c.pt.y = item->member.para.nYPos + item->member.para.nHeight;
item = item->member.para.next_para;
}
editor->sizeWindow.cx = c.rcView.right-c.rcView.left;
editor->sizeWindow.cy = c.rcView.bottom-c.rcView.top;
editor->nTotalLength = c.pt.y-c.rcView.top;
ME_UpdateScrollBar(editor, -1);
ME_EnsureVisible(editor, editor->pCursors[0].pRun);
/* FIXME this should be marked for update too somehow, so that painting happens in ME_PaintContent */
if (yLength != c.pt.y-c.rcView.top) {
RECT rc;
rc.left = c.rcView.left;
rc.right = c.rcView.right;
rc.top = c.pt.y;
rc.bottom = c.rcView.bottom;
InvalidateRect(editor->hWnd, &rc, FALSE);
UpdateWindow(editor->hWnd);
}
editor->nOldSelFrom = nSelFrom;
editor->nOldSelTo = nSelTo;
/* PatBlt(hDC, 0, c.pt.y, c.rcView.right, c.rcView.bottom, BLACKNESS);*/
ME_DestroyContext(&c);
ReleaseDC(hWnd, hDC);
}
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;
}
#define STREAMIN_BUFFER_SIZE 1024
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, EDITSTREAM *stream, ME_Style *style)
{
BYTE buffer[STREAMIN_BUFFER_SIZE+1];
WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
TRACE("%08lx %p\n", dwFormat, stream);
stream->dwError = 0;
do {
long nDataSize = 0, nWideChars = 0;
stream->dwError = stream->pfnCallback(stream->dwCookie,
(dwFormat & SF_UNICODE ? (BYTE *)wszText : buffer),
STREAMIN_BUFFER_SIZE, &nDataSize);
if (stream->dwError)
break;
if (!nDataSize)
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, buffer, nDataSize, wszText, STREAMIN_BUFFER_SIZE);
}
else
nWideChars = nDataSize>>1;
ME_InsertTextFromCursor(editor, 0, wszText, nWideChars, style);
if (nDataSize<STREAMIN_BUFFER_SIZE)
break;
} while(1);
ME_CommitUndo(editor);
return 0;
}
static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
{
RTF_Info parser;
ME_Style *style;
FIXME("%08lx %p\n", format, stream);
TRACE("%p %p\n", stream, editor->hWnd);
if (format & SFF_SELECTION) {
style = ME_GetSelectionInsertStyle(editor);
SendMessageW(editor->hWnd, WM_CLEAR, 0, 0);
}
else {
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
SetWindowTextA(editor->hWnd, "");
ME_ClearTempStyle(editor);
}
if (format & SF_RTF) {
/* setup the RTF parser */
memset(&parser, 0, sizeof parser);
RTFSetEditStream(&parser, stream);
parser.rtfFormat = format&(SF_TEXT|SF_RTF);
parser.hwndEdit = editor->hWnd;
WriterInit(&parser);
RTFInit(&parser);
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, stream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
else
{
/* FIXME where to put cursor now ? */
}
ME_ReleaseStyle(style);
return 0;
}
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->nTotalLength = 0;
ed->nScrollPos = 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;
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;
}
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);
}
#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);
switch(msg) {
UNSUPPORTED_MSG(EM_AUTOURLDETECT)
UNSUPPORTED_MSG(EM_CANPASTE)
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_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_GETRECT)
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETTEXTMODE)
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_LINEFROMCHAR)
UNSUPPORTED_MSG(EM_LINEINDEX)
UNSUPPORTED_MSG(EM_LINELENGTH)
UNSUPPORTED_MSG(EM_LINESCROLL)
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_SETLANGOPTIONS)
UNSUPPORTED_MSG(EM_SETOLECALLBACK)
UNSUPPORTED_MSG(EM_SETOPTIONS)
UNSUPPORTED_MSG(EM_SETRECT)
UNSUPPORTED_MSG(EM_SETRECTNP)
UNSUPPORTED_MSG(EM_SETTARGETDEVICE)
UNSUPPORTED_MSG(EM_SETTEXTMODE)
UNSUPPORTED_MSG(EM_SETUNDOLIMIT)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROC)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_STREAMOUT)
UNSUPPORTED_MSG(WM_SETFONT)
UNSUPPORTED_MSG(WM_PASTE)
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 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;
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
ME_SetSelectionCharFormat(editor, p);
ME_CommitUndo(editor);
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_CommitUndo(editor);
return 0;
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return 0;
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 WM_CUT:
case WM_COPY:
{
int from, to, pars;
WCHAR *data;
HANDLE hData;
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);
SetClipboardData(CF_UNICODETEXT, 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_InsertTextFromCursor(editor, 0, (WCHAR *)L"x", 1, editor->pBuffer->pDefaultStyle); */
DoWrap(editor);
ME_MoveCaret(editor);
return 0;
case WM_DESTROY:
ME_DestroyEditor(editor);
SetWindowLongW(hWnd, 0, 0);
PostQuitMessage(0);
break;
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);
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') {
/* 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:
{
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE|SIF_POS|SIF_RANGE|SIF_TRACKPOS;
GetScrollInfo(hWnd, SB_VERT, &si);
switch(LOWORD(wParam)) {
case SB_THUMBTRACK:
SetScrollPos(hWnd, SB_VERT, si.nTrackPos, FALSE);
ScrollWindow(hWnd, 0, si.nPos-si.nTrackPos, NULL, NULL);
/* InvalidateRect(hWnd, NULL, TRUE); */
UpdateWindow(hWnd);
break;
}
break;
}
case WM_SIZE:
{
ME_DisplayItem *tp = editor->pBuffer->pFirst;
while(tp)
{
if (tp->type == diParagraph)
{
tp->member.para.nFlags &= ~MEPF_WRAPPED;
tp = tp->member.para.next_para;
}
else
tp = tp->next;
}
ME_Repaint(editor);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
case EM_GETOLEINTERFACE:
{
LPVOID *ppvObj = (LPVOID*) lParam;
TRACE("EM_GETOLEINTERFACE %p\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_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
int nWritten = 0;
while(item && item->member.para.next_para->member.para.nCharOfs <= nStart)
item = ME_FindItemFwd(item, diParagraph);
if (!item) {
*buffer = L'\0';
return 0;
}
nStart -= item->member.para.nCharOfs;
do {
item = ME_FindItemFwd(item, diRun);
} while(item && (item->member.run.nCharOfs + ME_StrLen(item->member.run.strText) <= nStart));
assert(item);
nStart -= item->member.run.nCharOfs;
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;
}
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};
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);
}
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;
}
/******************************************************************
* 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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