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wine/dlls/riched20/editor.c
Dylan Smith 0342ab0df1 richedit: Use ITextHost interface in ME_LinkNotify. 
Using the ITextHost interface allows this notification to be received
for windowless richedit controls.  Windowed richedit conrols have an
ITextHost implementation that will fill in hwndFrom and idFrom, but
these should probably be initialized to 0 for windowless richedit
controls.
2009-09-28 12:54:16 +02:00

4919 lines
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/*
* RichEdit - functions dealing with editor object
*
* Copyright 2004 by Krzysztof Foltman
* Copyright 2005 by Cihan Altinay
* Copyright 2005 by Phil Krylov
* Copyright 2008 Eric Pouech
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 (Also called EM_SETLIMITTEXT)
+ 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_SETIMESTATUS
- EM_SETLANGOPTIONS 2.0
- EM_SETLIMITTEXT
- EM_SETMARGINS
+ EM_SETMODIFY (not sure if implementation is correct)
- EM_SETOLECALLBACK
+ EM_SETOPTIONS (partially implemented)
- 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 (partial)
+ EM_SETTEXTEX 3.0 (proper style?)
- EM_SETTEXTMODE 2.0
- EM_SETTYPOGRAPHYOPTIONS 3.0
+ EM_SETUNDOLIMIT 2.0
+ EM_SETWORDBREAKPROC (used only for word movement at the moment)
- 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_HSCROLL
+ WM_PASTE
+ WM_SETFONT
+ WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
+ WM_STYLECHANGING (seems to do nothing)
+ WM_STYLECHANGED (seems to do nothing)
+ WM_UNICHAR
+ WM_VSCROLL
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
* - add remaining CHARFORMAT/PARAFORMAT fields
* - right/center align should strip spaces from the beginning
* - 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)
* - 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
* - ListBox & ComboBox not implemented
*
* 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 "winreg.h"
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "rtf.h"
#include "imm.h"
#include "res.h"
#define STACK_SIZE_DEFAULT 100
#define STACK_SIZE_MAX 1000
#define TEXT_LIMIT_DEFAULT 32767
WINE_DEFAULT_DEBUG_CHANNEL(richedit);
static BOOL ME_RegisterEditorClass(HINSTANCE);
static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
static HCURSOR hLeft;
int me_debug = 0;
HANDLE me_heap = NULL;
static BOOL ME_ListBoxRegistered = FALSE;
static BOOL ME_ComboBoxRegistered = FALSE;
static inline int is_version_nt(void)
{
return !(GetVersion() & 0x80000000);
}
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("%08x %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_UpdateRepaint(editor);
return 0;
}
static void ME_ApplyBorderProperties(RTF_Info *info,
ME_BorderRect *borderRect,
RTFBorder *borderDef)
{
int i, colorNum;
ME_Border *pBorders[] = {&borderRect->top,
&borderRect->left,
&borderRect->bottom,
&borderRect->right};
for (i = 0; i < 4; i++)
{
RTFColor *colorDef = info->colorList;
pBorders[i]->width = borderDef[i].width;
colorNum = borderDef[i].color;
while (colorDef && colorDef->rtfCNum != colorNum)
colorDef = colorDef->rtfNextColor;
if (colorDef)
pBorders[i]->colorRef = RGB(
colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
else
pBorders[i]->colorRef = RGB(0, 0, 0);
}
}
void ME_RTFCharAttrHook(RTF_Info *info)
{
CHARFORMAT2W fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
fmt.dwEffects = 0;
switch(info->rtfMinor)
{
case rtfPlain:
/* FIXME add more flags once they're implemented */
fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
fmt.yHeight = 12*20; /* 12pt */
fmt.wWeight = FW_NORMAL;
fmt.bUnderlineType = CFU_UNDERLINENONE;
break;
case rtfBold:
fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
break;
case rtfItalic:
fmt.dwMask = CFM_ITALIC;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
break;
case rtfDotUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
break;
case rtfDbUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
break;
case rtfWordUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
break;
case rtfNoUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = CFU_UNDERLINENONE;
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 rtfInvisible:
fmt.dwMask = CFM_HIDDEN;
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);
if (c && c->rtfCBlue >= 0)
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
else
fmt.dwEffects = CFE_AUTOBACKCOLOR;
}
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);
if (c && c->rtfCBlue >= 0)
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
else {
fmt.dwEffects = CFE_AUTOCOLOR;
}
}
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;
fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
}
}
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 */
void ME_RTFParAttrHook(RTF_Info *info)
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
switch(info->rtfMinor)
{
case rtfParDef: /* restores default paragraph attributes */
if (!info->editor->bEmulateVersion10) /* v4.1 */
info->borderType = RTFBorderParaLeft;
else /* v1.0 - 3.0 */
info->borderType = RTFBorderParaTop;
fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
PFM_STARTINDENT;
/* TODO: numbering, shading */
fmt.wAlignment = PFA_LEFT;
fmt.cTabCount = 0;
fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
fmt.wBorderWidth = fmt.wBorders = 0;
fmt.wBorderSpace = 0;
fmt.bLineSpacingRule = 0;
fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
fmt.dyLineSpacing = 0;
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->tableDef && info->tableDef->tableRowStart &&
info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_Cursor cursor;
ME_DisplayItem *para;
/* We are just after a table row. */
RTFFlushOutputBuffer(info);
cursor = info->editor->pCursors[0];
para = cursor.pPara;
if (para == info->tableDef->tableRowStart->member.para.next_para
&& !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
{
/* Since the table row end, no text has been inserted, and the \intbl
* control word has not be used. We can confirm that we are not in a
* table anymore.
*/
info->tableDef->tableRowStart = NULL;
info->canInheritInTbl = FALSE;
}
}
} else { /* v1.0 - v3.0 */
fmt.dwMask |= PFM_TABLE;
fmt.wEffects &= ~PFE_TABLE;
}
break;
case rtfNestLevel:
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
while (info->rtfParam > info->nestingLevel) {
RTFTable *tableDef = ALLOC_OBJ(RTFTable);
ZeroMemory(tableDef, sizeof(RTFTable));
tableDef->parent = info->tableDef;
info->tableDef = tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->tableRowStart &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
} else {
ME_Cursor cursor;
WCHAR endl = '\r';
cursor = info->editor->pCursors[0];
if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
}
info->nestingLevel++;
}
info->canInheritInTbl = FALSE;
}
break;
case rtfInTable:
{
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->nestingLevel < 1)
{
RTFTable *tableDef;
if (!info->tableDef)
{
info->tableDef = ALLOC_OBJ(RTFTable);
ZeroMemory(info->tableDef, sizeof(RTFTable));
}
tableDef = info->tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->tableRowStart &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
} else {
ME_Cursor cursor;
WCHAR endl = '\r';
cursor = info->editor->pCursors[0];
if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
}
info->nestingLevel = 1;
info->canInheritInTbl = TRUE;
}
return;
} else { /* v1.0 - v3.0 */
fmt.dwMask |= PFM_TABLE;
fmt.wEffects |= PFE_TABLE;
}
break;
}
case rtfFirstIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
fmt.dxOffset = -info->rtfParam;
break;
case rtfLeftIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask = PFM_STARTINDENT;
fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
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.cTabCount = 0;
}
if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
fmt.dwMask = PFM_TABSTOPS;
break;
case rtfKeep:
fmt.dwMask = PFM_KEEP;
fmt.wEffects = PFE_KEEP;
break;
case rtfNoWidowControl:
fmt.dwMask = PFM_NOWIDOWCONTROL;
fmt.wEffects = PFE_NOWIDOWCONTROL;
break;
case rtfKeepNext:
fmt.dwMask = PFM_KEEPNEXT;
fmt.wEffects = PFE_KEEPNEXT;
break;
case rtfSpaceAfter:
fmt.dwMask = PFM_SPACEAFTER;
fmt.dySpaceAfter = info->rtfParam;
break;
case rtfSpaceBefore:
fmt.dwMask = PFM_SPACEBEFORE;
fmt.dySpaceBefore = info->rtfParam;
break;
case rtfSpaceBetween:
fmt.dwMask = PFM_LINESPACING;
if ((int)info->rtfParam > 0)
{
fmt.dyLineSpacing = info->rtfParam;
fmt.bLineSpacingRule = 3;
}
else
{
fmt.dyLineSpacing = info->rtfParam;
fmt.bLineSpacingRule = 4;
}
case rtfSpaceMultiply:
fmt.dwMask = PFM_LINESPACING;
fmt.dyLineSpacing = info->rtfParam * 20;
fmt.bLineSpacingRule = 5;
break;
case rtfParBullet:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = PFN_BULLET;
break;
case rtfParSimple:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
break;
case rtfParNumDecimal:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
break;
case rtfParNumIndent:
fmt.dwMask = PFM_NUMBERINGTAB;
fmt.wNumberingTab = info->rtfParam;
break;
case rtfParNumStartAt:
fmt.dwMask = PFM_NUMBERINGSTART;
fmt.wNumberingStart = info->rtfParam;
break;
case rtfBorderLeft:
info->borderType = RTFBorderParaLeft;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 1;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderRight:
info->borderType = RTFBorderParaRight;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 2;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderTop:
info->borderType = RTFBorderParaTop;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 4;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderBottom:
info->borderType = RTFBorderParaBottom;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderSingle:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 1 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderThick:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 2 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderShadow:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 10 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderDouble:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 7 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderDot:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 11 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderWidth:
{
int borderSide = info->borderType & RTFBorderSideMask;
RTFTable *tableDef = info->tableDef;
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
{
RTFBorder *border;
if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
break;
border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
border->width = info->rtfParam;
break;
}
fmt.dwMask = PFM_BORDER;
break;
}
case rtfBorderSpace:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderSpace = info->rtfParam;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderColor:
{
RTFTable *tableDef = info->tableDef;
int borderSide = info->borderType & RTFBorderSideMask;
int borderType = info->borderType & RTFBorderTypeMask;
switch(borderType)
{
case RTFBorderTypePara:
if (!info->editor->bEmulateVersion10) /* v4.1 */
break;
/* v1.0 - 3.0 treat paragraph and row borders the same. */
case RTFBorderTypeRow:
if (tableDef) {
tableDef->border[borderSide].color = info->rtfParam;
}
break;
case RTFBorderTypeCell:
if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
}
break;
}
break;
}
}
if (fmt.dwMask) {
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ?*/
ME_SetSelectionParaFormat(info->editor, &fmt);
}
}
void ME_RTFTblAttrHook(RTF_Info *info)
{
switch (info->rtfMinor)
{
case rtfRowDef:
{
if (!info->editor->bEmulateVersion10) /* v4.1 */
info->borderType = 0; /* Not sure */
else /* v1.0 - 3.0 */
info->borderType = RTFBorderRowTop;
if (!info->tableDef) {
info->tableDef = ME_MakeTableDef(info->editor);
} else {
ME_InitTableDef(info->editor, info->tableDef);
}
break;
}
case rtfCellPos:
{
int cellNum;
if (!info->tableDef)
{
info->tableDef = ME_MakeTableDef(info->editor);
}
cellNum = info->tableDef->numCellsDefined;
if (cellNum >= MAX_TABLE_CELLS)
break;
info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
if (cellNum < MAX_TAB_STOPS) {
/* Tab stops were used to store cell positions before v4.1 but v4.1
* still seems to set the tabstops without using them. */
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
}
info->tableDef->numCellsDefined++;
break;
}
case rtfRowBordTop:
info->borderType = RTFBorderRowTop;
break;
case rtfRowBordLeft:
info->borderType = RTFBorderRowLeft;
break;
case rtfRowBordBottom:
info->borderType = RTFBorderRowBottom;
break;
case rtfRowBordRight:
info->borderType = RTFBorderRowRight;
break;
case rtfCellBordTop:
info->borderType = RTFBorderCellTop;
break;
case rtfCellBordLeft:
info->borderType = RTFBorderCellLeft;
break;
case rtfCellBordBottom:
info->borderType = RTFBorderCellBottom;
break;
case rtfCellBordRight:
info->borderType = RTFBorderCellRight;
break;
case rtfRowGapH:
if (info->tableDef)
info->tableDef->gapH = info->rtfParam;
break;
case rtfRowLeftEdge:
if (info->tableDef)
info->tableDef->leftEdge = info->rtfParam;
break;
}
}
void ME_RTFSpecialCharHook(RTF_Info *info)
{
RTFTable *tableDef = info->tableDef;
switch (info->rtfMinor)
{
case rtfNestCell:
if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
break;
/* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
case rtfCell:
if (!tableDef)
break;
RTFFlushOutputBuffer(info);
if (!info->editor->bEmulateVersion10) { /* v4.1 */
if (tableDef->tableRowStart)
{
if (!info->nestingLevel &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
info->nestingLevel = 1;
}
ME_InsertTableCellFromCursor(info->editor);
}
} else { /* v1.0 - v3.0 */
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
tableDef->numCellsInserted < tableDef->numCellsDefined)
{
WCHAR tab = '\t';
ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
tableDef->numCellsInserted++;
}
}
break;
case rtfNestRow:
if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
break;
/* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
case rtfRow:
{
ME_DisplayItem *para, *cell, *run;
int i;
if (!tableDef)
break;
RTFFlushOutputBuffer(info);
if (!info->editor->bEmulateVersion10) { /* v4.1 */
if (!tableDef->tableRowStart)
break;
if (!info->nestingLevel &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
info->nestingLevel++;
}
para = tableDef->tableRowStart;
cell = ME_FindItemFwd(para, diCell);
assert(cell && !cell->member.cell.prev_cell);
if (tableDef->numCellsDefined < 1)
{
/* 2000 twips appears to be the cell size that native richedit uses
* when no cell sizes are specified. */
const int defaultCellSize = 2000;
int nRightBoundary = defaultCellSize;
cell->member.cell.nRightBoundary = nRightBoundary;
while (cell->member.cell.next_cell) {
cell = cell->member.cell.next_cell;
nRightBoundary += defaultCellSize;
cell->member.cell.nRightBoundary = nRightBoundary;
}
para = ME_InsertTableCellFromCursor(info->editor);
cell = para->member.para.pCell;
cell->member.cell.nRightBoundary = nRightBoundary;
} else {
for (i = 0; i < tableDef->numCellsDefined; i++)
{
RTFCell *cellDef = &tableDef->cells[i];
cell->member.cell.nRightBoundary = cellDef->rightBoundary;
ME_ApplyBorderProperties(info, &cell->member.cell.border,
cellDef->border);
cell = cell->member.cell.next_cell;
if (!cell)
{
para = ME_InsertTableCellFromCursor(info->editor);
cell = para->member.para.pCell;
}
}
/* Cell for table row delimiter is empty */
cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
}
run = ME_FindItemFwd(cell, diRun);
if (info->editor->pCursors[0].pRun != run ||
info->editor->pCursors[0].nOffset)
{
int nOfs, nChars;
/* Delete inserted cells that aren't defined. */
info->editor->pCursors[1].pRun = run;
info->editor->pCursors[1].pPara = ME_GetParagraph(run);
info->editor->pCursors[1].nOffset = 0;
nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
nChars, TRUE);
}
para = ME_InsertTableRowEndFromCursor(info->editor);
para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties(info, &para->member.para.border,
tableDef->border);
info->nestingLevel--;
if (!info->nestingLevel)
{
if (info->canInheritInTbl) {
tableDef->tableRowStart = para;
} else {
while (info->tableDef) {
tableDef = info->tableDef;
info->tableDef = tableDef->parent;
heap_free(tableDef);
}
}
} else {
info->tableDef = tableDef->parent;
heap_free(tableDef);
}
} else { /* v1.0 - v3.0 */
WCHAR endl = '\r';
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
pFmt->dxOffset = info->tableDef->gapH;
pFmt->dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties(info, &para->member.para.border,
tableDef->border);
while (tableDef->numCellsInserted < tableDef->numCellsDefined)
{
WCHAR tab = '\t';
ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
tableDef->numCellsInserted++;
}
pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
if (!tableDef->numCellsDefined)
pFmt->wEffects &= ~PFE_TABLE;
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->numCellsInserted = 0;
}
break;
}
case rtfTab:
case rtfPar:
if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
ME_DisplayItem *para;
PARAFORMAT2 *pFmt;
RTFFlushOutputBuffer(info);
para = info->editor->pCursors[0].pPara;
pFmt = para->member.para.pFmt;
if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
{
/* rtfPar is treated like a space within a table. */
info->rtfClass = rtfText;
info->rtfMajor = ' ';
}
else if (info->rtfMinor == rtfPar && tableDef)
tableDef->numCellsInserted = 0;
}
break;
}
}
static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
const SIZEL* sz)
{
LPOLEOBJECT lpObject = NULL;
LPSTORAGE lpStorage = NULL;
LPOLECLIENTSITE lpClientSite = NULL;
LPDATAOBJECT lpDataObject = NULL;
LPOLECACHE lpOleCache = NULL;
STGMEDIUM stgm;
FORMATETC fm;
CLSID clsid;
BOOL ret = FALSE;
DWORD conn;
if (hemf)
{
stgm.tymed = TYMED_ENHMF;
stgm.u.hEnhMetaFile = hemf;
fm.cfFormat = CF_ENHMETAFILE;
}
else if (hbmp)
{
stgm.tymed = TYMED_GDI;
stgm.u.hBitmap = hbmp;
fm.cfFormat = CF_BITMAP;
}
stgm.pUnkForRelease = NULL;
fm.ptd = NULL;
fm.dwAspect = DVASPECT_CONTENT;
fm.lindex = -1;
fm.tymed = stgm.tymed;
if (!info->lpRichEditOle)
{
CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
}
if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
#if 0
/* FIXME: enable it when rich-edit properly implements this method */
IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
#endif
IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
{
REOBJECT reobject;
reobject.cbStruct = sizeof(reobject);
reobject.cp = REO_CP_SELECTION;
reobject.clsid = clsid;
reobject.poleobj = lpObject;
reobject.pstg = lpStorage;
reobject.polesite = lpClientSite;
/* convert from twips to .01 mm */
reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
reobject.dvaspect = DVASPECT_CONTENT;
reobject.dwFlags = 0; /* FIXME */
reobject.dwUser = 0;
/* FIXME: could be simpler */
ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
}
if (lpObject) IOleObject_Release(lpObject);
if (lpClientSite) IOleClientSite_Release(lpClientSite);
if (lpStorage) IStorage_Release(lpStorage);
if (lpDataObject) IDataObject_Release(lpDataObject);
if (lpOleCache) IOleCache_Release(lpOleCache);
return ret;
}
static void ME_RTFReadPictGroup(RTF_Info *info)
{
SIZEL sz;
BYTE* buffer = NULL;
unsigned bufsz, bufidx;
BOOL flip;
BYTE val;
METAFILEPICT mfp;
HENHMETAFILE hemf;
HBITMAP hbmp;
enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
mfp.mm = MM_TEXT;
/* fetch picture type */
if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
{
mfp.mm = info->rtfParam;
gfx = gfx_metafile;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
{
if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
gfx = gfx_dib;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
{
gfx = gfx_enhmetafile;
}
else
{
FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
goto skip_group;
}
sz.cx = sz.cy = 0;
/* fetch picture attributes */
for (;;)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (info->rtfClass == rtfText)
break;
if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
{
ERR("Expected picture attribute (%d %d)\n",
info->rtfClass, info->rtfMajor);
goto skip_group;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
{
if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
{
if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
sz.cx = info->rtfParam;
else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
sz.cy = info->rtfParam;
else
FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
}
/* fetch picture data */
bufsz = 1024;
bufidx = 0;
buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
val = info->rtfMajor;
for (flip = TRUE;; flip = !flip)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
{
HeapFree(GetProcessHeap(), 0, buffer);
return; /* Warn ?? */
}
if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
break;
if (info->rtfClass != rtfText) goto skip_group;
if (flip)
{
if (bufidx >= bufsz &&
!(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
goto skip_group;
buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
}
else
val = info->rtfMajor;
}
if (flip) FIXME("wrong hex string\n");
switch (gfx)
{
case gfx_enhmetafile:
if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
ME_RTFInsertOleObject(info, hemf, NULL, &sz);
break;
case gfx_metafile:
if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
ME_RTFInsertOleObject(info, hemf, NULL, &sz);
break;
case gfx_dib:
{
BITMAPINFO* bi = (BITMAPINFO*)buffer;
HDC hdc = GetDC(0);
unsigned nc = bi->bmiHeader.biClrUsed;
/* not quite right, especially for bitfields type of compression */
if (!nc && bi->bmiHeader.biBitCount <= 8)
nc = 1 << bi->bmiHeader.biBitCount;
if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
bi, DIB_RGB_COLORS)))
ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
ReleaseDC(0, hdc);
}
break;
default:
break;
}
HeapFree(GetProcessHeap(), 0, buffer);
RTFRouteToken (info); /* feed "}" back to router */
return;
skip_group:
HeapFree(GetProcessHeap(), 0, buffer);
RTFSkipGroup(info);
RTFRouteToken(info); /* feed "}" back to router */
}
/* for now, lookup the \result part and use it, whatever the object */
static void ME_RTFReadObjectGroup(RTF_Info *info)
{
for (;;)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
break;
if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
{
int level = 1;
while (RTFGetToken (info) != rtfEOF)
{
if (info->rtfClass == rtfGroup)
{
if (info->rtfMajor == rtfBeginGroup) level++;
else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
}
RTFRouteToken(info);
}
}
else RTFSkipGroup(info);
continue;
}
if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
{
FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
return;
}
}
RTFRouteToken(info); /* feed "}" back to router */
}
static void ME_RTFReadHook(RTF_Info *info)
{
switch(info->rtfClass)
{
case rtfGroup:
switch(info->rtfMajor)
{
case rtfBeginGroup:
if (info->stackTop < maxStack) {
info->stack[info->stackTop].style = info->style;
ME_AddRefStyle(info->style);
info->stack[info->stackTop].codePage = info->codePage;
info->stack[info->stackTop].unicodeLength = info->unicodeLength;
}
info->stackTop++;
info->styleChanged = FALSE;
break;
case rtfEndGroup:
{
RTFFlushOutputBuffer(info);
info->stackTop--;
if (info->stackTop <= 0)
info->rtfClass = rtfEOF;
if (info->stackTop < 0)
return;
ME_ReleaseStyle(info->style);
info->style = info->stack[info->stackTop].style;
info->codePage = info->stack[info->stackTop].codePage;
info->unicodeLength = info->stack[info->stackTop].unicodeLength;
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, BOOL stripLastCR)
{
RTF_Info parser;
ME_Style *style;
int from, to, nUndoMode;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
BOOL invalidRTF = FALSE;
ME_Cursor *selStart, *selEnd;
TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
editor->nEventMask = 0;
ME_GetSelectionOfs(editor, &from, &to);
if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
{
ME_GetSelection(editor, &selStart, &selEnd);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, selStart, to - from, FALSE);
/* Don't insert text at the end of the table row */
if (!editor->bEmulateVersion10) { /* v4.1 */
ME_DisplayItem *para = editor->pCursors->pPara;
if (para->member.para.nFlags & MEPF_ROWEND)
{
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
}
if (para->member.para.nFlags & MEPF_ROWSTART)
{
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
}
editor->pCursors[1] = editor->pCursors[0];
} else { /* v1.0 - 3.0 */
if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
ME_IsInTable(editor->pCursors[0].pRun))
return 0;
}
} else {
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
ME_SetSelection(editor, 0, 0);
ME_InternalDeleteText(editor, &editor->pCursors[1],
ME_GetTextLength(editor), FALSE);
from = to = 0;
ME_ClearTempStyle(editor);
ME_SetDefaultParaFormat(editor->pCursors[0].pPara->member.para.pFmt);
}
/* Back up undo mode to a local variable */
nUndoMode = editor->nUndoMode;
/* Only create an undo if SFF_SELECTION is set */
if (!(format & SFF_SELECTION))
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 ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
|| (editor->bEmulateVersion10 && *inStream.buffer != '{'))
{
invalidRTF = TRUE;
inStream.editstream->dwError = -16;
}
}
}
if (!invalidRTF && !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.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
if (!parser.editor->bEmulateVersion10) /* v4.1 */
{
RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
}
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (parser.tableDef && parser.tableDef->tableRowStart &&
(parser.nestingLevel > 0 || parser.canInheritInTbl))
{
/* Delete any incomplete table row at the end of the rich text. */
int nOfs, nChars;
ME_DisplayItem *pCell;
ME_DisplayItem *para;
parser.rtfMinor = rtfRow;
/* Complete the table row before deleting it.
* By doing it this way we will have the current paragraph format set
* properly to reflect that is not in the complete table, and undo items
* will be added for this change to the current paragraph format. */
if (parser.nestingLevel > 0)
{
while (parser.nestingLevel > 1)
ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
para = parser.tableDef->tableRowStart;
ME_RTFSpecialCharHook(&parser);
} else {
para = parser.tableDef->tableRowStart;
ME_RTFSpecialCharHook(&parser);
assert(para->member.para.nFlags & MEPF_ROWEND);
para = para->member.para.next_para;
}
pCell = para->member.para.pCell;
editor->pCursors[1].pPara = para;
editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1].nOffset = 0;
nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
ME_InternalDeleteText(editor, &editor->pCursors[1], nChars, TRUE);
if (parser.tableDef)
parser.tableDef->tableRowStart = NULL;
}
}
ME_CheckTablesForCorruption(editor);
RTFDestroy(&parser);
if (parser.lpRichEditOle)
IRichEditOle_Release(parser.lpRichEditOle);
if (parser.stackTop > 0)
{
while (--parser.stackTop >= 0)
{
ME_ReleaseStyle(parser.style);
parser.style = parser.stack[parser.stackTop].style;
}
if (!inStream.editstream->dwError)
inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
/* Remove last line break, as mandated by tests. This is not affected by
CR/LF counters, since RTF streaming presents only \para tokens, which
are converted according to the standard rules: \r for 2.0, \r\n for 1.0
*/
if (stripLastCR) {
int newto;
ME_GetSelection(editor, &selStart, &selEnd);
newto = ME_GetCursorOfs(selEnd);
if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
WCHAR lastchar[3] = {'\0', '\0'};
int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
ME_Cursor linebreakCursor = *selEnd;
ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize);
ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, 0);
if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
}
}
}
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");
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
ME_SetSelection(editor, 0, 0);
}
/* Restore saved undo mode */
editor->nUndoMode = nUndoMode;
/* even if we didn't add an undo, we need to commit anything on the stack */
ME_CommitUndo(editor);
/* If SFF_SELECTION isn't set, delete any undos from before we started too */
if (!(format & SFF_SELECTION))
ME_EmptyUndoStack(editor);
ME_ReleaseStyle(style);
editor->nEventMask = nEventMask;
ME_UpdateRepaint(editor);
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_MoveCaret(editor);
ITextHost_TxShowCaret(editor->texthost, TRUE);
ME_SendSelChange(editor);
ME_SendRequestResize(editor, FALSE);
return 0;
}
typedef struct tagME_RTFStringStreamStruct
{
char *string;
int pos;
int length;
} ME_RTFStringStreamStruct;
static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
int count;
count = min(cb, pStruct->length - pStruct->pos);
memmove(lpBuff, pStruct->string + pStruct->pos, count);
pStruct->pos += count;
*pcb = count;
return 0;
}
static void
ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
{
EDITSTREAM es;
ME_RTFStringStreamStruct data;
data.string = string;
data.length = strlen(string);
data.pos = 0;
es.dwCookie = (DWORD_PTR)&data;
es.pfnCallback = ME_ReadFromRTFString;
ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
}
static int
ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
{
const int nLen = lstrlenW(text);
const int nTextLen = ME_GetTextLength(editor);
int nMin, nMax;
ME_Cursor cursor;
WCHAR wLastChar = ' ';
TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
FIXME("Flags 0x%08x not implemented\n",
flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
nMin = chrg->cpMin;
if (chrg->cpMax == -1)
nMax = nTextLen;
else
nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
/* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
if (editor->bEmulateVersion10 && nMax == nTextLen)
{
flags |= FR_DOWN;
}
/* In 1.0 emulation, cpMin must always be no greater than cpMax */
if (editor->bEmulateVersion10 && nMax < nMin)
{
if (chrgText)
{
chrgText->cpMin = -1;
chrgText->cpMax = -1;
}
return -1;
}
/* when searching up, if cpMin < cpMax, then instead of searching
* on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
* [cpMax, cpMin]. The exception is when cpMax is -1, in which
* case, it is always bigger than cpMin.
*/
if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
{
int nSwap = nMax;
nMax = nMin > nTextLen ? nTextLen : nMin;
if (nMin < nSwap || chrg->cpMax == -1)
nMin = 0;
else
nMin = nSwap;
}
if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
if (flags & FR_DOWN) /* Forward search */
{
/* If possible, find the character before where the search starts */
if ((flags & FR_WHOLEWORD) && nMin)
{
ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, 1);
} else {
ME_CursorFromCharOfs(editor, nMin, &cursor);
}
while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
{
ME_DisplayItem *pCurItem = cursor.pRun;
int nCurStart = cursor.nOffset;
int nMatched = 0;
while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
{
if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_DisplayItem *pNextItem = pCurItem;
int nNextStart = nCurStart;
WCHAR wNextChar;
/* Check to see if next character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
{
pNextItem = ME_FindItemFwd(pCurItem, diRun);
nNextStart = -nMatched;
}
if (pNextItem)
wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
else
wNextChar = ' ';
if (isalnumW(wNextChar))
break;
}
cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
if (chrgText)
{
chrgText->cpMin = cursor.nOffset;
chrgText->cpMax = cursor.nOffset + nLen;
}
TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
return cursor.nOffset;
}
if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
{
pCurItem = ME_FindItemFwd(pCurItem, diRun);
nCurStart = -nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
else
wLastChar = ' ';
cursor.nOffset++;
if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
{
ME_NextRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = 0;
}
}
}
else /* Backward search */
{
/* If possible, find the character after where the search ends */
if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
{
ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, -1);
} else {
ME_CursorFromCharOfs(editor, nMax, &cursor);
}
while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
{
ME_DisplayItem *pCurItem = cursor.pRun;
ME_DisplayItem *pCurPara = cursor.pPara;
int nCurEnd = cursor.nOffset;
int nMatched = 0;
if (nCurEnd == 0)
{
ME_PrevRun(&pCurPara, &pCurItem);
nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
}
while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
{
if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_DisplayItem *pPrevItem = pCurItem;
int nPrevEnd = nCurEnd;
WCHAR wPrevChar;
int nStart;
/* Check to see if previous character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nPrevEnd - nMatched == 0)
{
pPrevItem = ME_FindItemBack(pCurItem, diRun);
if (pPrevItem)
nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
}
if (pPrevItem)
wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
else
wPrevChar = ' ';
if (isalnumW(wPrevChar))
break;
}
nStart = pCurPara->member.para.nCharOfs
+ pCurItem->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)
{
ME_PrevRun(&pCurPara, &pCurItem);
/* Don't care about pCurItem becoming NULL here; it's already taken
* care of in the exterior loop condition */
nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
else
wLastChar = ' ';
cursor.nOffset--;
if (cursor.nOffset < 0)
{
ME_PrevRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = cursor.pRun->member.run.strText->nLen;
}
}
}
TRACE("not found\n");
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
{
int nChars;
ME_Cursor start;
if (!ex->cb || !pText) return 0;
if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
if (ex->flags & GT_SELECTION)
{
int from, to;
int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
start = editor->pCursors[nStartCur];
nChars = to - from;
}
else
{
ME_SetCursorToStart(editor, &start);
nChars = INT_MAX;
}
if (ex->codepage == 1200)
{
return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
&start, nChars, 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? :)
The above assumption still holds with CR/LF counters, since CR->CRLF expansion
occurs only in richedit 2.0 mode, in which line breaks have only one CR
*/
int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
DWORD buflen;
LPWSTR buffer;
LRESULT rc;
buflen = min(crlfmul * nChars, ex->cb - 1);
buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF);
rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
(LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
if (rc) rc--; /* do not count 0 terminator */
heap_free(buffer);
return rc;
}
}
static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
const ME_Cursor *start, int nLen, BOOL unicode)
{
if (!strText) return 0;
if (unicode) {
return ME_GetTextW(editor, strText, INT_MAX, start, nLen, 0);
} else {
int nChars;
WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
if (!p) return 0;
nChars = ME_GetTextW(editor, p, nLen, start, nLen, 0);
WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
nLen+1, NULL, NULL);
FREE_OBJ(p);
return nChars;
}
}
typedef struct tagME_GlobalDestStruct
{
HGLOBAL hData;
int nLength;
} ME_GlobalDestStruct;
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 = 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 = 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;
}
static BOOL ME_Paste(ME_TextEditor *editor)
{
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 FALSE;
if (!OpenClipboard(editor->hWnd))
return FALSE;
gds.hData = GetClipboardData(cf);
gds.nLength = 0;
es.dwCookie = (DWORD_PTR)&gds;
es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
CloseClipboard();
return TRUE;
}
static BOOL ME_Copy(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
LPDATAOBJECT dataObj = NULL;
HRESULT hr = S_OK;
if (editor->cPasswordMask)
return FALSE; /* Copying or Cutting masked text isn't allowed */
if(editor->lpOleCallback)
{
CHARRANGE range;
range.cpMin = ME_GetCursorOfs(start);
range.cpMax = range.cpMin + nChars;
hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
}
if(FAILED(hr) || !dataObj)
hr = ME_GetDataObject(editor, start, nChars, &dataObj);
if(SUCCEEDED(hr)) {
hr = OleSetClipboard(dataObj);
IDataObject_Release(dataObj);
}
return SUCCEEDED(hr) != 0;
}
/* helper to send a msg filter notification */
static BOOL
ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
{
MSGFILTER msgf;
if (!editor->hWnd) return FALSE;
msgf.nmhdr.hwndFrom = editor->hWnd;
msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
msgf.nmhdr.code = EN_MSGFILTER;
msgf.msg = msg;
msgf.wParam = *wParam;
msgf.lParam = *lParam;
if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
return FALSE;
*wParam = msgf.wParam;
*lParam = msgf.lParam;
msgf.wParam = *wParam;
return TRUE;
}
static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
{
ME_DisplayItem *startPara, *endPara;
ME_DisplayItem *prev_para;
ME_Cursor *from, *to;
ME_Cursor start;
int nChars;
if (!editor->AutoURLDetect_bEnable) return;
ME_GetSelection(editor, &from, &to);
/* Find paragraph previous to the one that contains start cursor */
startPara = from->pPara;
prev_para = startPara->member.para.prev_para;
if (prev_para->type == diParagraph) startPara = prev_para;
/* Find paragraph that contains end cursor */
endPara = to->pPara->member.para.next_para;
start.pPara = startPara;
start.pRun = ME_FindItemFwd(startPara, diRun);
start.nOffset = 0;
nChars = endPara->member.para.nCharOfs - startPara->member.para.nCharOfs;
ME_UpdateLinkAttribute(editor, &start, nChars);
}
static BOOL
ME_KeyDown(ME_TextEditor *editor, WORD nKey)
{
BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
if (editor->bMouseCaptured)
return FALSE;
if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
editor->nSelectionType = stPosition;
switch (nKey)
{
case VK_LEFT:
case VK_RIGHT:
case VK_HOME:
case VK_END:
editor->nUDArrowX = -1;
/* fall through */
case VK_UP:
case VK_DOWN:
case VK_PRIOR:
case VK_NEXT:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
return TRUE;
case VK_BACK:
case VK_DELETE:
editor->nUDArrowX = -1;
/* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
if (editor->styleFlags & ES_READONLY)
return FALSE;
if (ME_IsSelection(editor))
{
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
}
else if (nKey == VK_DELETE)
{
/* Delete stops group typing.
* (See MSDN remarks on EM_STOPGROUPTYPING message) */
ME_DeleteTextAtCursor(editor, 1, 1);
ME_CommitUndo(editor);
}
else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
{
BOOL bDeletionSucceeded;
/* Backspace can be grouped for a single undo */
ME_ContinueCoalescingTransaction(editor);
bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
/* Deletion was prevented so the cursor is moved back to where it was.
* (e.g. this happens when trying to delete cell boundaries)
*/
ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
}
ME_CommitCoalescingUndo(editor);
}
else
return TRUE;
ME_MoveCursorFromTableRowStartParagraph(editor);
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
ME_SendRequestResize(editor, FALSE);
return TRUE;
case VK_RETURN:
if (editor->styleFlags & ES_MULTILINE)
{
ME_Cursor cursor = editor->pCursors[0];
ME_DisplayItem *para = cursor.pPara;
int from, to;
const WCHAR endl = '\r';
ME_Style *style;
if (editor->styleFlags & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return TRUE;
}
ME_GetSelectionOfs(editor, &from, &to);
if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
if (!editor->bEmulateVersion10) { /* v4.1 */
if (para->member.para.nFlags & MEPF_ROWEND) {
/* Add a new table row after this row. */
para = ME_AppendTableRow(editor, para);
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitUndo(editor);
ME_CheckTablesForCorruption(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
else if (para == editor->pCursors[1].pPara &&
cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
!para->member.para.prev_para->member.para.nCharOfs)
{
/* Insert a newline before the table. */
para = para->member.para.prev_para;
para->member.para.nFlags &= ~MEPF_ROWSTART;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor(editor, 0, &endl, 1,
editor->pCursors[0].pRun->member.run.style);
para = editor->pBuffer->pFirst->member.para.next_para;
ME_SetDefaultParaFormat(para->member.para.pFmt);
para->member.para.nFlags = MEPF_REWRAP;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1] = editor->pCursors[0];
para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
ME_CommitCoalescingUndo(editor);
ME_CheckTablesForCorruption(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
} else { /* v1.0 - 3.0 */
ME_DisplayItem *para = cursor.pPara;
if (ME_IsInTable(para))
{
if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
{
if (from == to) {
ME_ContinueCoalescingTransaction(editor);
para = ME_AppendTableRow(editor, para);
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
} else {
ME_ContinueCoalescingTransaction(editor);
if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
!ME_IsInTable(para->member.para.prev_para))
{
/* Insert newline before table */
cursor.pRun = ME_FindItemBack(para, diRun);
if (cursor.pRun) {
editor->pCursors[0].pRun = cursor.pRun;
editor->pCursors[0].pPara = para->member.para.prev_para;
}
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor(editor, 0, &endl, 1,
editor->pCursors[0].pRun->member.run.style);
} else {
editor->pCursors[1] = editor->pCursors[0];
para = ME_AppendTableRow(editor, para);
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
}
}
style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_ContinueCoalescingTransaction(editor);
if (shift_is_down)
ME_InsertEndRowFromCursor(editor, 0);
else
ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
ME_ReleaseStyle(style);
ME_CommitCoalescingUndo(editor);
SetCursor(NULL);
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
}
return TRUE;
}
break;
case 'A':
if (ctrl_is_down)
{
ME_SetSelection(editor, 0, -1);
return TRUE;
}
break;
case 'V':
if (ctrl_is_down)
return ME_Paste(editor);
break;
case 'C':
case 'X':
if (ctrl_is_down)
{
BOOL result;
int nOfs, nChars;
int nStartCur = ME_GetSelectionOfs(editor, &nOfs, &nChars);
ME_Cursor *selStart = &editor->pCursors[nStartCur];
nChars -= nOfs;
result = ME_Copy(editor, selStart, nChars);
if (result && nKey == 'X')
{
ME_InternalDeleteText(editor, selStart, nChars, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return result;
}
break;
case 'Z':
if (ctrl_is_down)
{
ME_Undo(editor);
return TRUE;
}
break;
case 'Y':
if (ctrl_is_down)
{
ME_Redo(editor);
return TRUE;
}
break;
default:
if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
editor->nUDArrowX = -1;
if (ctrl_is_down)
{
if (nKey == 'W')
{
CHARFORMAT2W chf;
char buf[2048];
chf.cbSize = sizeof(chf);
ME_GetSelectionCharFormat(editor, &chf);
ME_DumpStyleToBuf(&chf, buf);
MessageBoxA(NULL, buf, "Style dump", MB_OK);
}
if (nKey == 'Q')
{
ME_CheckCharOffsets(editor);
}
}
}
return FALSE;
}
static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
LPARAM flags, BOOL unicode)
{
WCHAR wstr;
if (editor->bMouseCaptured)
return 0;
if (unicode)
wstr = (WCHAR)charCode;
else
{
CHAR charA = charCode;
MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
}
if (editor->styleFlags & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return 0; /* FIXME really 0 ? */
}
if ((unsigned)wstr >= ' ' || wstr == '\t')
{
ME_Cursor cursor = editor->pCursors[0];
ME_DisplayItem *para = cursor.pPara;
int from, to;
BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
ME_GetSelectionOfs(editor, &from, &to);
if (wstr == '\t' &&
/* v4.1 allows tabs to be inserted with ctrl key down */
!(ctrl_is_down && !editor->bEmulateVersion10))
{
ME_DisplayItem *para;
BOOL bSelectedRow = FALSE;
para = cursor.pPara;
if (ME_IsSelection(editor) &&
cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
to == ME_GetCursorOfs(&editor->pCursors[0]) &&
para->member.para.prev_para->type == diParagraph)
{
para = para->member.para.prev_para;
bSelectedRow = TRUE;
}
if (ME_IsInTable(para))
{
ME_TabPressedInTable(editor, bSelectedRow);
ME_CommitUndo(editor);
return 0;
}
} else if (!editor->bEmulateVersion10) { /* v4.1 */
if (para->member.para.nFlags & MEPF_ROWEND) {
if (from == to) {
para = para->member.para.next_para;
if (para->member.para.nFlags & MEPF_ROWSTART)
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
}
} else { /* v1.0 - 3.0 */
if (ME_IsInTable(cursor.pRun) &&
cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
from == to)
{
/* Text should not be inserted at the end of the table. */
MessageBeep(-1);
return 0;
}
}
/* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
/* WM_CHAR is restricted to nTextLimit */
if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
ME_Style *style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_ContinueCoalescingTransaction(editor);
ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
ME_ReleaseStyle(style);
ME_CommitCoalescingUndo(editor);
ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
}
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
/* Process the message and calculate the new click count.
*
* returns: The click count if it is mouse down event, else returns 0. */
static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
LPARAM lParam)
{
static int clickNum = 0;
if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
return 0;
if ((msg == WM_LBUTTONDBLCLK) ||
(msg == WM_RBUTTONDBLCLK) ||
(msg == WM_MBUTTONDBLCLK) ||
(msg == WM_XBUTTONDBLCLK))
{
msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
}
if ((msg == WM_LBUTTONDOWN) ||
(msg == WM_RBUTTONDOWN) ||
(msg == WM_MBUTTONDOWN) ||
(msg == WM_XBUTTONDOWN))
{
static MSG prevClickMsg;
MSG clickMsg;
/* Compare the editor instead of the hwnd so that the this
* can still be done for windowless richedit controls. */
clickMsg.hwnd = (HWND)editor;
clickMsg.message = msg;
clickMsg.wParam = wParam;
clickMsg.lParam = lParam;
clickMsg.time = GetMessageTime();
clickMsg.pt.x = (short)LOWORD(lParam);
clickMsg.pt.y = (short)HIWORD(lParam);
if ((clickNum != 0) &&
(clickMsg.message == prevClickMsg.message) &&
(clickMsg.hwnd == prevClickMsg.hwnd) &&
(clickMsg.wParam == prevClickMsg.wParam) &&
(clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
(abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
(abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
{
clickNum++;
} else {
clickNum = 1;
}
prevClickMsg = clickMsg;
} else {
return 0;
}
return clickNum;
}
static BOOL ME_SetCursor(ME_TextEditor *editor)
{
ME_Cursor cursor;
POINT pt;
BOOL isExact;
SCROLLBARINFO sbi;
DWORD messagePos = GetMessagePos();
pt.x = (short)LOWORD(messagePos);
pt.y = (short)HIWORD(messagePos);
if (editor->hWnd)
{
sbi.cbSize = sizeof(sbi);
GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
PtInRect(&sbi.rcScrollBar, pt))
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
return TRUE;
}
sbi.cbSize = sizeof(sbi);
GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
PtInRect(&sbi.rcScrollBar, pt))
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
return TRUE;
}
}
ITextHost_TxScreenToClient(editor->texthost, &pt);
if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
if (!editor->bEmulateVersion10 /* v4.1 */ &&
pt.y < editor->rcFormat.top &&
pt.x < editor->rcFormat.left)
{
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
{
if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
else /* v4.1 */
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
return TRUE;
}
if (pt.x < editor->rcFormat.left)
{
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
ME_CharFromPos(editor, pt.x, pt.y, &cursor, &isExact);
if (isExact)
{
ME_Run *run;
run = &cursor.pRun->member.run;
if (run->style->fmt.dwMask & CFM_LINK &&
run->style->fmt.dwEffects & CFE_LINK)
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_HAND),
FALSE);
return TRUE;
}
if (ME_IsSelection(editor))
{
int selStart, selEnd;
int offset = ME_GetCursorOfs(&cursor);
ME_GetSelectionOfs(editor, &selStart, &selEnd);
if (selStart <= offset && selEnd >= offset) {
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
FALSE);
return TRUE;
}
}
}
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
return TRUE;
}
static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
{
ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
editor->rcFormat.left += 1 + editor->selofs;
editor->rcFormat.right -= 1;
}
static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
{
CHARRANGE selrange;
HMENU menu;
int seltype = 0;
if(!editor->lpOleCallback || !editor->hWnd)
return FALSE;
ME_GetSelectionOfs(editor, &selrange.cpMin, &selrange.cpMax);
if(selrange.cpMin == selrange.cpMax)
seltype |= SEL_EMPTY;
else
{
/* FIXME: Handle objects */
seltype |= SEL_TEXT;
if(selrange.cpMax-selrange.cpMin > 1)
seltype |= SEL_MULTICHAR;
}
if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
{
TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
DestroyMenu(menu);
}
return TRUE;
}
ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
{
ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
int i;
DWORD props;
LONG selbarwidth;
ed->hWnd = NULL;
ed->texthost = texthost;
ed->bEmulateVersion10 = bEmulateVersion10;
ITextHost_TxGetPropertyBits(texthost,
(TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
TXTBIT_READONLY|TXTBIT_USEPASSWORD|
TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
&props);
ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
ed->pBuffer = ME_MakeText();
ed->nZoomNumerator = ed->nZoomDenominator = 0;
ed->nAvailWidth = 0; /* wrap to client area */
ME_MakeFirstParagraph(ed);
/* The four cursors are for:
* 0 - The position where the caret is shown
* 1 - The anchored end of the selection (for normal selection)
* 2 & 3 - The anchored start and end respectively for word, line,
* or paragraph selection.
*/
ed->nCursors = 4;
ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
ME_SetCursorToStart(ed, &ed->pCursors[0]);
ed->pCursors[1] = ed->pCursors[0];
ed->pCursors[2] = ed->pCursors[0];
ed->pCursors[3] = ed->pCursors[1];
ed->nLastTotalLength = ed->nTotalLength = 0;
ed->nLastTotalWidth = ed->nTotalWidth = 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->nTextLimit = TEXT_LIMIT_DEFAULT;
ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
ed->nUndoStackSize = 0;
ed->nUndoLimit = STACK_SIZE_DEFAULT;
ed->nUndoMode = umAddToUndo;
ed->nParagraphs = 1;
ed->nLastSelStart = ed->nLastSelEnd = 0;
ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
ed->bHideSelection = FALSE;
ed->pfnWordBreak = NULL;
ed->lpOleCallback = NULL;
ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
ed->AutoURLDetect_bEnable = FALSE;
ed->bHaveFocus = FALSE;
ed->bMouseCaptured = FALSE;
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);
ed->bDefaultFormatRect = TRUE;
ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
if (selbarwidth) {
/* FIXME: Convert selbarwidth from HIMETRIC to pixels */
ed->selofs = SELECTIONBAR_WIDTH;
ed->styleFlags |= ES_SELECTIONBAR;
} else {
ed->selofs = 0;
}
ed->nSelectionType = stPosition;
ed->cPasswordMask = 0;
if (props & TXTBIT_USEPASSWORD)
ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
if (props & TXTBIT_AUTOWORDSEL)
ed->styleFlags |= ECO_AUTOWORDSELECTION;
if (props & TXTBIT_MULTILINE) {
ed->styleFlags |= ES_MULTILINE;
ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
} else {
ed->bWordWrap = FALSE;
}
if (props & TXTBIT_READONLY)
ed->styleFlags |= ES_READONLY;
if (!(props & TXTBIT_HIDESELECTION))
ed->styleFlags |= ES_NOHIDESEL;
if (props & TXTBIT_SAVESELECTION)
ed->styleFlags |= ES_SAVESEL;
if (props & TXTBIT_VERTICAL)
ed->styleFlags |= ES_VERTICAL;
if (props & TXTBIT_DISABLEDRAG)
ed->styleFlags |= ES_NOOLEDRAGDROP;
ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
/* Default scrollbar information */
ed->vert_si.cbSize = sizeof(SCROLLINFO);
ed->vert_si.nMin = 0;
ed->vert_si.nMax = 0;
ed->vert_si.nPage = 0;
ed->vert_si.nPos = 0;
ed->horz_si.cbSize = sizeof(SCROLLINFO);
ed->horz_si.nMin = 0;
ed->horz_si.nMax = 0;
ed->horz_si.nPage = 0;
ed->horz_si.nPos = 0;
OleInitialize(NULL);
return ed;
}
static 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);
}
if (editor->rgbBackColor != -1)
DeleteObject(editor->hbrBackground);
if(editor->lpOleCallback)
IUnknown_Release(editor->lpOleCallback);
IUnknown_Release(editor->texthost);
OleUninitialize();
FREE_OBJ(editor->pBuffer);
FREE_OBJ(editor->pCursors);
FREE_OBJ(editor);
}
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);
if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
LookupInit();
break;
case DLL_PROCESS_DETACH:
UnregisterClassW(RICHEDIT_CLASS20W, 0);
UnregisterClassW(MSFTEDIT_CLASS, 0);
UnregisterClassA(RICHEDIT_CLASS20A, 0);
UnregisterClassA("RichEdit50A", 0);
if (ME_ListBoxRegistered)
UnregisterClassW(REListBox20W, 0);
if (ME_ComboBoxRegistered)
UnregisterClassW(REComboBox20W, 0);
LookupCleanup();
HeapDestroy (me_heap);
me_heap = NULL;
break;
}
return TRUE;
}
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",
"EM_SETIMESTATUS",
"EM_GETIMESTATUS"
};
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_CHARFROMPOS)
return edit_messages[msg - EM_GETSEL];
if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
return richedit_messages[msg - EM_CANPASTE];
return "";
}
static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
{
int x,y;
BOOL isExact;
ME_Cursor cursor; /* The start of the clicked text. */
ENLINK info;
x = (short)LOWORD(lParam);
y = (short)HIWORD(lParam);
ME_CharFromPos(editor, x, y, &cursor, &isExact);
if (!isExact) return;
if (cursor.pRun->member.run.style->fmt.dwMask & CFM_LINK &&
cursor.pRun->member.run.style->fmt.dwEffects & CFE_LINK)
{ /* The clicked run has CFE_LINK set */
info.nmhdr.hwndFrom = NULL;
info.nmhdr.idFrom = 0;
info.nmhdr.code = EN_LINK;
info.msg = msg;
info.wParam = wParam;
info.lParam = lParam;
cursor.nOffset = 0;
info.chrg.cpMin = ME_GetCursorOfs(&cursor);
info.chrg.cpMax = info.chrg.cpMin + cursor.pRun->member.run.strText->nLen;
ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
}
}
#define UNSUPPORTED_MSG(e) \
case e: \
FIXME(#e ": stub\n"); \
*phresult = S_FALSE; \
return 0;
/* Handle messages for windowless and windoweded richedit controls.
*
* The LRESULT that is returned is a return value for window procs,
* and the phresult parameter is the COM return code needed by the
* text services interface. */
LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
LPARAM lParam, BOOL unicode, HRESULT* phresult)
{
*phresult = S_OK;
switch(msg) {
UNSUPPORTED_MSG(EM_DISPLAYBAND)
UNSUPPORTED_MSG(EM_FINDWORDBREAK)
UNSUPPORTED_MSG(EM_FMTLINES)
UNSUPPORTED_MSG(EM_FORMATRANGE)
UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_GETEDITSTYLE)
UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
UNSUPPORTED_MSG(EM_GETIMESTATUS)
UNSUPPORTED_MSG(EM_SETIMESTATUS)
UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_GETUNDONAME)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_PASTESPECIAL)
UNSUPPORTED_MSG(EM_SELECTIONTYPE)
UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_SETEDITSTYLE)
UNSUPPORTED_MSG(EM_SETFONTSIZE)
UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
UNSUPPORTED_MSG(EM_SETMARGINS)
UNSUPPORTED_MSG(EM_SETPALETTE)
UNSUPPORTED_MSG(EM_SETTABSTOPS)
UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
/* Messages specific to Richedit controls */
case EM_STREAMIN:
return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
case EM_STREAMOUT:
return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
case WM_GETDLGCODE:
{
UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
if (editor->styleFlags & ES_MULTILINE)
code |= DLGC_WANTMESSAGE;
return code;
}
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_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
if ((*pfrom|*pto) & 0xFFFF0000)
return -1;
return MAKELONG(*pfrom,*pto);
}
case EM_EXGETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
return 0;
}
case EM_SETUNDOLIMIT:
{
if ((int)wParam < 0)
editor->nUndoLimit = STACK_SIZE_DEFAULT;
else
editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
/* Setting a max stack size keeps wine from getting killed
for hogging memory. Windows allocates all this memory at once, so
no program would realistically set a value above our maximum. */
return editor->nUndoLimit;
}
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:
return ME_Undo(editor);
case EM_REDO:
return ME_Redo(editor);
case EM_GETOPTIONS:
{
/* these flags are equivalent to the ES_* counterparts */
DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
DWORD settings = editor->styleFlags & mask;
return settings;
}
case EM_SETOPTIONS:
{
/* these flags are equivalent to ES_* counterparts, except for
* ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
* but is still stored in editor->styleFlags. */
const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
DWORD settings = mask & editor->styleFlags;
DWORD oldSettings = settings;
DWORD changedSettings;
switch(wParam)
{
case ECOOP_SET:
settings = lParam;
break;
case ECOOP_OR:
settings |= lParam;
break;
case ECOOP_AND:
settings &= lParam;
break;
case ECOOP_XOR:
settings ^= lParam;
}
changedSettings = oldSettings ^ settings;
if (changedSettings) {
editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
if (changedSettings & ECO_SELECTIONBAR)
{
ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
if (settings & ECO_SELECTIONBAR) {
assert(!editor->selofs);
editor->selofs = SELECTIONBAR_WIDTH;
editor->rcFormat.left += editor->selofs;
} else {
editor->rcFormat.left -= editor->selofs;
editor->selofs = 0;
}
ME_RewrapRepaint(editor);
}
if (changedSettings & settings & ECO_VERTICAL)
FIXME("ECO_VERTICAL not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOHSCROLL)
FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOVSCROLL)
FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
if (changedSettings & settings & ECO_NOHIDESEL)
FIXME("ECO_NOHIDESEL not implemented yet!\n");
if (changedSettings & settings & ECO_WANTRETURN)
FIXME("ECO_WANTRETURN not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOWORDSELECTION)
FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
}
return settings;
}
case EM_SETSEL:
{
ME_InvalidateSelection(editor);
ME_SetSelection(editor, wParam, lParam);
ME_InvalidateSelection(editor);
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_SETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
ME_ScrollAbs(editor, point->x, point->y);
return 0;
}
case EM_AUTOURLDETECT:
{
if (wParam==1 || wParam ==0)
{
editor->AutoURLDetect_bEnable = (BOOL)wParam;
return 0;
}
return E_INVALIDARG;
}
case EM_GETAUTOURLDETECT:
{
return editor->AutoURLDetect_bEnable;
}
case EM_EXSETSEL:
{
int end;
CHARRANGE range = *(CHARRANGE *)lParam;
TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
ME_InvalidateSelection(editor);
end = ME_SetSelection(editor, range.cpMin, range.cpMax);
ME_InvalidateSelection(editor);
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return end;
}
case EM_SHOWSCROLLBAR:
{
DWORD flags;
switch (wParam)
{
case SB_HORZ:
flags = WS_HSCROLL;
break;
case SB_VERT:
flags = WS_VSCROLL;
break;
case SB_BOTH:
flags = WS_HSCROLL|WS_VSCROLL;
break;
default:
return 0;
}
if (lParam) {
editor->styleFlags |= flags;
if (flags & WS_HSCROLL)
ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
editor->nTotalWidth > editor->sizeWindow.cx);
if (flags & WS_VSCROLL)
ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
editor->nTotalLength > editor->sizeWindow.cy);
} else {
editor->styleFlags &= ~flags;
ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
}
return 0;
}
case EM_SETTEXTEX:
{
LPWSTR wszText;
SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
size_t len = 0;
int from, to;
ME_Style *style;
BOOL bRtf, bUnicode, bSelection;
int oldModify = editor->nModifyStep;
if (!pStruct) return 0;
/* If we detect ascii rtf at the start of the string,
* we know it isn't unicode. */
bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
!strncmp((char *)lParam, "{\\urtf", 6)));
bUnicode = !bRtf && pStruct->codepage == 1200;
TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
pStruct->flags, pStruct->codepage);
bSelection = (pStruct->flags & ST_SELECTION) != 0;
if (bSelection) {
int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
} else {
ME_Cursor start;
ME_SetCursorToStart(editor, &start);
ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
style = editor->pBuffer->pDefaultStyle;
}
if (bRtf) {
ME_StreamInRTFString(editor, bSelection, (char *)lParam);
if (bSelection) {
/* FIXME: The length returned is doesn't include the rtf control
* characters, only the actual text. */
len = lParam ? strlen((char *)lParam) : 0;
}
} else {
/* FIXME: make use of pStruct->codepage in the to unicode translation */
wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
len = wszText ? lstrlenW(wszText) : 0;
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
}
if (bSelection) {
ME_ReleaseStyle(style);
ME_UpdateSelectionLinkAttribute(editor);
} else {
ME_Cursor cursor;
len = 1;
ME_SetCursorToStart(editor, &cursor);
ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
}
ME_CommitUndo(editor);
if (!(pStruct->flags & ST_KEEPUNDO))
{
editor->nModifyStep = oldModify;
ME_EmptyUndoStack(editor);
}
ME_UpdateRepaint(editor);
return len;
}
case EM_SETBKGNDCOLOR:
{
LRESULT lColor;
if (editor->rgbBackColor != -1) {
DeleteObject(editor->hbrBackground);
lColor = editor->rgbBackColor;
}
else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
if (wParam)
{
editor->rgbBackColor = -1;
editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
}
else
{
editor->rgbBackColor = lParam;
editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
}
ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
ITextHost_TxViewChange(editor->texthost, TRUE);
return lColor;
}
case EM_GETMODIFY:
return editor->nModifyStep == 0 ? 0 : -1;
case EM_SETMODIFY:
{
if (wParam)
editor->nModifyStep = 1;
else
editor->nModifyStep = 0;
return 0;
}
case EM_SETREADONLY:
{
if (wParam)
editor->styleFlags |= ES_READONLY;
else
editor->styleFlags &= ~ES_READONLY;
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 (p == NULL) return 0;
if (!wParam)
ME_SetDefaultCharFormat(editor, p);
else if (wParam == (SCF_WORD | SCF_SELECTION)) {
FIXME("EM_SETCHARFORMAT: word selection not supported\n");
return 0;
} else if (wParam == SCF_ALL) {
if (editor->mode & TM_PLAINTEXT)
ME_SetDefaultCharFormat(editor, p);
else {
ME_Cursor start;
ME_SetCursorToStart(editor, &start);
ME_SetCharFormat(editor, &start, NULL, p);
editor->nModifyStep = 1;
}
} else if (editor->mode & TM_PLAINTEXT) {
return 0;
} else {
bRepaint = ME_IsSelection(editor);
ME_SetSelectionCharFormat(editor, p);
if (bRepaint) editor->nModifyStep = 1;
}
ME_CommitUndo(editor);
if (bRepaint)
{
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_Repaint(editor);
}
return 1;
}
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:
{
BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_Repaint(editor);
ME_CommitUndo(editor);
return result;
}
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return ((PARAFORMAT2 *)lParam)->dwMask;
case EM_GETFIRSTVISIBLELINE:
{
ME_DisplayItem *p = editor->pBuffer->pFirst;
int y = editor->vert_si.nPos;
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.pt.y;
continue;
}
ystart = ypara + p->member.row.pt.y;
yend = ystart + p->member.row.nHeight;
if (y < yend) {
break;
}
count++;
}
return count;
}
case EM_HIDESELECTION:
{
editor->bHideSelection = (wParam != 0);
ME_InvalidateSelection(editor);
return 0;
}
case EM_LINESCROLL:
{
if (!(editor->styleFlags & ES_MULTILINE))
return FALSE;
ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
return TRUE;
}
case WM_CLEAR:
{
int from, to;
int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case EM_REPLACESEL:
{
int from, to, nStartCursor;
ME_Style *style;
LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
size_t len = wszText ? lstrlenW(wszText) : 0;
TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
/* 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_EndToUnicode(unicode, wszText);
ME_CommitUndo(editor);
ME_UpdateSelectionLinkAttribute(editor);
if (!wParam)
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return len;
}
case EM_SCROLLCARET:
ME_EnsureVisible(editor, &editor->pCursors[0]);
return 0;
case WM_SETFONT:
{
LOGFONTW lf;
CHARFORMAT2W fmt;
HDC hDC;
BOOL bRepaint = LOWORD(lParam);
ME_Cursor start;
if (!wParam)
wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
hDC = ITextHost_TxGetDC(editor->texthost);
ME_CharFormatFromLogFont(hDC, &lf, &fmt);
ITextHost_TxReleaseDC(editor->texthost, hDC);
ME_SetCursorToStart(editor, &start);
ME_SetCharFormat(editor, &start, NULL, &fmt);
ME_SetDefaultCharFormat(editor, &fmt);
ME_CommitUndo(editor);
ME_MarkAllForWrapping(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
if (bRepaint)
ME_Repaint(editor);
return 0;
}
case WM_SETTEXT:
{
ME_Cursor cursor;
ME_SetCursorToStart(editor, &cursor);
ME_InternalDeleteText(editor, &cursor, ME_GetTextLength(editor), FALSE);
if (lParam)
{
TRACE("WM_SETTEXT lParam==%lx\n",lParam);
if (!strncmp((char *)lParam, "{\\rtf", 5) ||
!strncmp((char *)lParam, "{\\urtf", 6))
{
/* Undocumented: WM_SETTEXT supports RTF text */
ME_StreamInRTFString(editor, 0, (char *)lParam);
}
else
{
LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
if (lstrlenW(wszText) > 0)
{
int len = -1;
/* uses default style! */
if (!(editor->styleFlags & ES_MULTILINE))
{
WCHAR * p;
p = wszText;
while (*p != '\0' && *p != '\r' && *p != '\n') p++;
len = p - wszText;
}
ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
}
ME_EndToUnicode(unicode, wszText);
}
}
else
TRACE("WM_SETTEXT - NULL\n");
ME_SetCursorToStart(editor, &cursor);
ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
ME_SetSelection(editor, 0, 0);
editor->nModifyStep = 0;
ME_CommitUndo(editor);
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return 1;
}
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:
ME_Paste(editor);
return 0;
case WM_CUT:
case WM_COPY:
{
int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
int nChars = nTo - nFrom;
ME_Cursor *selStart = &editor->pCursors[nStartCur];
if (ME_Copy(editor, selStart, nChars) && msg == WM_CUT)
{
ME_InternalDeleteText(editor, selStart, nChars, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
case WM_GETTEXTLENGTH:
{
GETTEXTLENGTHEX how;
/* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
how.codepage = unicode ? 1200 : CP_ACP;
return ME_GetTextLengthEx(editor, &how);
}
case EM_GETTEXTLENGTHEX:
return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
case WM_GETTEXT:
{
GETTEXTEX ex;
ex.cb = wParam * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
ex.flags = GT_USECRLF;
ex.codepage = unicode ? 1200 : CP_ACP;
ex.lpDefaultChar = NULL;
ex.lpUsedDefChar = NULL;
return ME_GetTextEx(editor, &ex, lParam);
}
case EM_GETTEXTEX:
return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
case EM_GETSELTEXT:
{
int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
ME_Cursor *from = &editor->pCursors[nStartCur];
return ME_GetTextRange(editor, (WCHAR *)lParam, from,
nTo - nFrom, unicode);
}
case EM_GETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
point->x = editor->horz_si.nPos;
point->y = editor->vert_si.nPos;
/* 16-bit scaled value is returned as stored in scrollinfo */
if (editor->horz_si.nMax > 0xffff)
point->x = MulDiv(point->x, 0xffff, editor->horz_si.nMax);
if (editor->vert_si.nMax > 0xffff)
point->y = MulDiv(point->y, 0xffff, editor->vert_si.nMax);
return 1;
}
case EM_GETTEXTRANGE:
{
TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
ME_Cursor start;
int nStart = rng->chrg.cpMin;
int nEnd = rng->chrg.cpMax;
int textlength = ME_GetTextLength(editor);
TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d textlength=%d\n",
rng->chrg.cpMin, rng->chrg.cpMax, unicode, textlength);
if (nStart < 0) return 0;
if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
nEnd = textlength;
if (nStart >= nEnd) return 0;
ME_CursorFromCharOfs(editor, nStart, &start);
return ME_GetTextRange(editor, rng->lpstrText, &start, nEnd - nStart, unicode);
}
case EM_GETLINE:
{
ME_DisplayItem *run;
const unsigned int nMaxChars = *(WORD *) lParam;
unsigned int nCharsLeft = nMaxChars;
char *dest = (char *) lParam;
BOOL wroteNull = FALSE;
TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
unicode ? "Unicode" : "Ansi");
run = ME_FindRowWithNumber(editor, wParam);
if (run == NULL)
return 0;
while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
&& run->type == diRun)
{
unsigned int nCopy;
ME_String *strText;
strText = run->member.run.strText;
nCopy = min(nCharsLeft, strText->nLen);
if (unicode)
memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
else
nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
nCharsLeft, NULL, NULL);
dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
nCharsLeft -= nCopy;
}
/* append line termination, space allowing */
if (nCharsLeft > 0)
{
if (unicode)
*((WCHAR *)dest) = '\0';
else
*dest = '\0';
nCharsLeft--;
wroteNull = TRUE;
}
TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
}
case EM_GETLINECOUNT:
{
ME_DisplayItem *item = editor->pBuffer->pFirst->next;
int nRows = 0;
ME_DisplayItem *prev_para = NULL, *last_para = NULL;
while (item != editor->pBuffer->pLast)
{
assert(item->type == diParagraph);
prev_para = ME_FindItemBack(item, diRun);
if (prev_para) {
assert(prev_para->member.run.nFlags & MERF_ENDPARA);
}
nRows += item->member.para.nRows;
item = item->member.para.next_para;
}
last_para = ME_FindItemBack(item, diRun);
assert(last_para);
assert(last_para->member.run.nFlags & MERF_ENDPARA);
if (editor->bEmulateVersion10 && prev_para &&
last_para->member.run.nCharOfs == 0 &&
prev_para->member.run.strText->nLen == 1 &&
prev_para->member.run.strText->szData[0] == '\r')
{
/* In 1.0 emulation, the last solitary \r at the very end of the text
(if one exists) is NOT a line break.
FIXME: this is an ugly hack. This should have a more regular model. */
nRows--;
}
TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
return max(1, nRows);
}
case EM_LINEFROMCHAR:
{
if (wParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
else
return ME_RowNumberFromCharOfs(editor, wParam);
}
case EM_EXLINEFROMCHAR:
{
if (lParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
else
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;
ME_DisplayItem *para, *run;
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;
}
ME_RunOfsFromCharOfs(editor, wParam, &para, &run, NULL);
item = ME_RowStart(run);
nThisLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item, diRun), 0);
item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
if (item_end->type == diStartRow) {
nNextLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item_end, diRun), 0);
} else {
ME_DisplayItem *endRun = ME_FindItemBack(item_end, diRun);
assert(endRun && endRun->member.run.nFlags & MERF_ENDPARA);
nNextLineOfs = item_end->member.para.nCharOfs - endRun->member.run.strText->nLen;
}
nChars = nNextLineOfs - nThisLineOfs;
TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
return nChars;
}
case EM_EXLIMITTEXT:
{
if ((int)lParam < 0)
return 0;
if (lParam == 0)
editor->nTextLimit = 65536;
else
editor->nTextLimit = (int) lParam;
return 0;
}
case EM_LIMITTEXT:
{
if (wParam == 0)
editor->nTextLimit = 65536;
else
editor->nTextLimit = (int) wParam;
return 0;
}
case EM_GETLIMITTEXT:
{
return editor->nTextLimit;
}
case EM_FINDTEXT:
{
FINDTEXTA *ft = (FINDTEXTA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
WCHAR *tmp;
LRESULT r;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
FREE_OBJ( tmp );
return r;
}
case EM_FINDTEXTEX:
{
FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
WCHAR *tmp;
LRESULT r;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
FREE_OBJ( tmp );
return r;
}
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:
{
ME_Cursor cursor;
if (ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y,
&cursor, NULL))
return ME_GetCursorOfs(&cursor);
else
return -1;
}
case EM_POSFROMCHAR:
{
ME_DisplayItem *pPara, *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);
nCharOfs = min(nCharOfs, nLength);
nCharOfs = max(nCharOfs, 0);
ME_RunOfsFromCharOfs(editor, nCharOfs, &pPara, &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 += pPara->member.para.pt.y + editor->rcFormat.top;
pt.x += editor->rcFormat.left;
pt.x -= editor->horz_si.nPos;
pt.y -= editor->vert_si.nPos;
if (wParam >= 0x40000) {
*(POINTL *)wParam = pt;
}
return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
}
case WM_CREATE:
{
INT max;
ME_SetDefaultFormatRect(editor);
max = (editor->styleFlags & ES_DISABLENOSCROLL) ? 1 : 0;
if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_VSCROLL)
ITextHost_TxSetScrollRange(editor->texthost, SB_VERT, 0, max, TRUE);
if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_HSCROLL)
ITextHost_TxSetScrollRange(editor->texthost, SB_HORZ, 0, max, TRUE);
if (editor->styleFlags & ES_DISABLENOSCROLL)
{
if (editor->styleFlags & WS_VSCROLL)
{
ITextHost_TxEnableScrollBar(editor->texthost, SB_VERT, ESB_DISABLE_BOTH);
ITextHost_TxShowScrollBar(editor->texthost, SB_VERT, TRUE);
}
if (editor->styleFlags & WS_HSCROLL)
{
ITextHost_TxEnableScrollBar(editor->texthost, SB_HORZ, ESB_DISABLE_BOTH);
ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ, TRUE);
}
}
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
ME_MoveCaret(editor);
return 0;
}
case WM_DESTROY:
ME_DestroyEditor(editor);
return 0;
case WM_SETCURSOR:
{
return ME_SetCursor(editor);
}
case WM_LBUTTONDBLCLK:
case WM_LBUTTONDOWN:
{
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
ITextHost_TxSetFocus(editor->texthost);
ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
ME_CalculateClickCount(editor, msg, wParam, lParam));
ITextHost_TxSetCapture(editor->texthost, TRUE);
editor->bMouseCaptured = TRUE;
ME_LinkNotify(editor,msg,wParam,lParam);
if (!ME_SetCursor(editor)) goto do_default;
break;
}
case WM_MOUSEMOVE:
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
if (editor->bMouseCaptured)
ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
ME_LinkNotify(editor,msg,wParam,lParam);
/* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
if (editor->bMouseCaptured)
ME_SetCursor(editor);
break;
case WM_LBUTTONUP:
if (editor->bMouseCaptured) {
ITextHost_TxSetCapture(editor->texthost, FALSE);
editor->bMouseCaptured = FALSE;
}
if (editor->nSelectionType == stDocument)
editor->nSelectionType = stPosition;
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
else
{
ME_SetCursor(editor);
ME_LinkNotify(editor,msg,wParam,lParam);
}
break;
case WM_RBUTTONUP:
case WM_RBUTTONDOWN:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
goto do_default;
case WM_CONTEXTMENU:
if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
goto do_default;
break;
case WM_SETFOCUS:
editor->bHaveFocus = TRUE;
ME_ShowCaret(editor);
ME_SendOldNotify(editor, EN_SETFOCUS);
return 0;
case WM_KILLFOCUS:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
editor->bHaveFocus = FALSE;
ME_HideCaret(editor);
ME_SendOldNotify(editor, EN_KILLFOCUS);
return 0;
case WM_COMMAND:
TRACE("editor wnd command = %d\n", LOWORD(wParam));
return 0;
case WM_KEYUP:
if ((editor->nEventMask & ENM_KEYEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
goto do_default;
case WM_KEYDOWN:
if ((editor->nEventMask & ENM_KEYEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
if (ME_KeyDown(editor, LOWORD(wParam)))
return 0;
goto do_default;
case WM_CHAR:
return ME_Char(editor, wParam, lParam, unicode);
case WM_UNICHAR:
if (unicode)
{
if(wParam == UNICODE_NOCHAR) return TRUE;
if(wParam <= 0x000fffff)
{
if(wParam > 0xffff) /* convert to surrogates */
{
wParam -= 0x10000;
ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
} else {
ME_Char(editor, wParam, 0, TRUE);
}
}
return 0;
}
break;
case EM_STOPGROUPTYPING:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
return 0;
case WM_HSCROLL:
{
const int scrollUnit = 7;
switch(LOWORD(wParam))
{
case SB_LEFT:
ME_ScrollAbs(editor, 0, 0);
break;
case SB_RIGHT:
ME_ScrollAbs(editor,
editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage);
break;
case SB_LINELEFT:
ME_ScrollLeft(editor, scrollUnit);
break;
case SB_LINERIGHT:
ME_ScrollRight(editor, scrollUnit);
break;
case SB_PAGELEFT:
ME_ScrollLeft(editor, editor->sizeWindow.cx);
break;
case SB_PAGERIGHT:
ME_ScrollRight(editor, editor->sizeWindow.cx);
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
{
int pos = HIWORD(wParam);
if (editor->horz_si.nMax > 0xffff)
pos = MulDiv(pos, editor->horz_si.nMax, 0xffff);
ME_HScrollAbs(editor, pos);
break;
}
}
break;
}
case EM_SCROLL: /* fall through */
case WM_VSCROLL:
{
int origNPos;
int lineHeight;
origNPos = editor->vert_si.nPos;
lineHeight = 24;
if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
if (lineHeight <= 0) lineHeight = 24;
switch(LOWORD(wParam))
{
case SB_TOP:
ME_ScrollAbs(editor, 0, 0);
break;
case SB_BOTTOM:
ME_ScrollAbs(editor,
editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage);
break;
case SB_LINEUP:
ME_ScrollUp(editor,lineHeight);
break;
case SB_LINEDOWN:
ME_ScrollDown(editor,lineHeight);
break;
case SB_PAGEUP:
ME_ScrollUp(editor,editor->sizeWindow.cy);
break;
case SB_PAGEDOWN:
ME_ScrollDown(editor,editor->sizeWindow.cy);
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
{
int pos = HIWORD(wParam);
if (editor->vert_si.nMax > 0xffff)
pos = MulDiv(pos, editor->vert_si.nMax, 0xffff);
ME_VScrollAbs(editor, pos);
break;
}
}
if (msg == EM_SCROLL)
return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
break;
}
case WM_MOUSEWHEEL:
{
int gcWheelDelta;
UINT pulScrollLines;
BOOL ctrl_is_down;
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
gcWheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
if (abs(gcWheelDelta) >= WHEEL_DELTA)
{
if (ctrl_is_down) {
int numerator;
if (!editor->nZoomNumerator || !editor->nZoomDenominator)
{
numerator = 100;
} else {
numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
}
numerator = numerator + (gcWheelDelta / WHEEL_DELTA) * 10;
if (numerator >= 10 && numerator <= 500)
ME_SetZoom(editor, numerator, 100);
} else {
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
/* FIXME follow the original */
if (pulScrollLines)
ME_ScrollDown(editor,pulScrollLines * (-gcWheelDelta / WHEEL_DELTA) * 8);
}
}
break;
}
case EM_GETRECT:
{
*((RECT *)lParam) = editor->rcFormat;
if (editor->bDefaultFormatRect)
((RECT *)lParam)->left -= editor->selofs;
return 0;
}
case EM_SETRECT:
case EM_SETRECTNP:
{
if (lParam)
{
int border = 0;
RECT clientRect;
RECT *rc = (RECT *)lParam;
border = editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
ITextHost_TxGetClientRect(editor->texthost, &clientRect);
if (wParam == 0)
{
editor->rcFormat.top = max(0, rc->top - border);
editor->rcFormat.left = max(0, rc->left - border);
editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
editor->rcFormat.right = min(clientRect.right, rc->right + border);
} else if (wParam == 1) {
/* MSDN incorrectly says a wParam value of 1 causes the
* lParam rect to be used as a relative offset,
* however, the tests show it just prevents min/max bound
* checking. */
editor->rcFormat.top = rc->top - border;
editor->rcFormat.left = rc->left - border;
editor->rcFormat.bottom = rc->bottom;
editor->rcFormat.right = rc->right + border;
} else {
return 0;
}
editor->bDefaultFormatRect = FALSE;
}
else
{
ME_SetDefaultFormatRect(editor);
editor->bDefaultFormatRect = TRUE;
}
ME_MarkAllForWrapping(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
if (msg != EM_SETRECTNP)
ME_Repaint(editor);
return 0;
}
case EM_REQUESTRESIZE:
ME_SendRequestResize(editor, TRUE);
return 0;
case WM_SETREDRAW:
goto do_default;
case WM_SIZE:
{
RECT clientRect;
ITextHost_TxGetClientRect(editor->texthost, &clientRect);
if (editor->bDefaultFormatRect) {
ME_SetDefaultFormatRect(editor);
} else {
editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
}
editor->prevClientRect = clientRect;
ME_RewrapRepaint(editor);
goto do_default;
}
/* IME messages to make richedit controls IME aware */
case WM_IME_SETCONTEXT:
case WM_IME_CONTROL:
case WM_IME_SELECT:
case WM_IME_COMPOSITIONFULL:
return 0;
case WM_IME_STARTCOMPOSITION:
{
editor->imeStartIndex=ME_GetCursorOfs(&editor->pCursors[0]);
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case WM_IME_COMPOSITION:
{
HIMC hIMC;
ME_Style *style = ME_GetInsertStyle(editor, 0);
hIMC = ITextHost_TxImmGetContext(editor->texthost);
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
ME_SaveTempStyle(editor);
if (lParam & GCS_RESULTSTR)
{
LPWSTR lpCompStr = NULL;
DWORD dwBufLen;
dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
}
else if (lParam & GCS_COMPSTR)
{
LPWSTR lpCompStr = NULL;
DWORD dwBufLen;
dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
ME_SetSelection(editor,editor->imeStartIndex,
editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
}
ME_ReleaseStyle(style);
ME_UpdateRepaint(editor);
return 0;
}
case WM_IME_ENDCOMPOSITION:
{
ME_DeleteSelection(editor);
editor->imeStartIndex=-1;
return 0;
}
case EM_GETOLEINTERFACE:
{
LPVOID *ppvObj = (LPVOID*) lParam;
return CreateIRichEditOle(editor, ppvObj);
}
case EM_GETPASSWORDCHAR:
{
return editor->cPasswordMask;
}
case EM_SETOLECALLBACK:
if(editor->lpOleCallback)
IUnknown_Release(editor->lpOleCallback);
editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
if(editor->lpOleCallback)
IUnknown_AddRef(editor->lpOleCallback);
return TRUE;
case EM_GETWORDBREAKPROC:
return (LRESULT)editor->pfnWordBreak;
case EM_SETWORDBREAKPROC:
{
EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
return (LRESULT)pfnOld;
}
case EM_GETTEXTMODE:
return editor->mode;
case EM_SETTEXTMODE:
{
LRESULT ret;
int mask = 0;
int changes = 0;
GETTEXTLENGTHEX how;
/* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
how.codepage = unicode ? 1200 : CP_ACP;
ret = ME_GetTextLengthEx(editor, &how);
if (!ret)
{
/*Check for valid wParam*/
if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
(((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
(((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
return 1;
else
{
if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
{
mask |= (TM_RICHTEXT | TM_PLAINTEXT);
changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
}
/*FIXME: Currently no support for undo level and code page options*/
editor->mode = (editor->mode & (~mask)) | changes;
return 0;
}
}
return ret;
}
case EM_SETPASSWORDCHAR:
{
editor->cPasswordMask = wParam;
ME_RewrapRepaint(editor);
return 0;
}
case EM_SETTARGETDEVICE:
if (wParam == 0)
{
BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
if (editor->nAvailWidth || editor->bWordWrap != new)
{
editor->bWordWrap = new;
editor->nAvailWidth = 0; /* wrap to client area */
ME_RewrapRepaint(editor);
}
} else {
int width = max(0, lParam);
if ((editor->styleFlags & ES_MULTILINE) &&
(!editor->bWordWrap || editor->nAvailWidth != width))
{
editor->nAvailWidth = width;
editor->bWordWrap = TRUE;
ME_RewrapRepaint(editor);
}
FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
}
return TRUE;
default:
do_default:
*phresult = S_FALSE;
break;
}
return 0L;
}
static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam, BOOL unicode)
{
ME_TextEditor *editor;
HRESULT hresult;
LRESULT lresult = 0;
TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
if (!editor)
{
if (msg == WM_NCCREATE)
{
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
ITextHost *texthost;
TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
texthost = ME_CreateTextHost(hWnd, FALSE);
return texthost != NULL;
}
else if (msg != WM_NCDESTROY)
{
ERR("called with invalid hWnd %p - application bug?\n", hWnd);
return 0;
}
}
switch (msg)
{
case WM_PAINT:
{
HDC hDC;
RECT rc;
PAINTSTRUCT ps;
hDC = BeginPaint(editor->hWnd, &ps);
/* Erase area outside of the formatting rectangle */
if (ps.rcPaint.top < editor->rcFormat.top)
{
rc = ps.rcPaint;
rc.bottom = editor->rcFormat.top;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.top = editor->rcFormat.top;
}
if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
rc = ps.rcPaint;
rc.top = editor->rcFormat.bottom;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.bottom = editor->rcFormat.bottom;
}
if (ps.rcPaint.left < editor->rcFormat.left) {
rc = ps.rcPaint;
rc.right = editor->rcFormat.left;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.left = editor->rcFormat.left;
}
if (ps.rcPaint.right > editor->rcFormat.right) {
rc = ps.rcPaint;
rc.left = editor->rcFormat.right;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.right = editor->rcFormat.right;
}
ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
EndPaint(editor->hWnd, &ps);
return 0;
}
case WM_ERASEBKGND:
{
HDC hDC = (HDC)wParam;
RECT rc;
if (GetUpdateRect(editor->hWnd, &rc, TRUE))
FillRect(hDC, &rc, editor->hbrBackground);
return 1;
}
case EM_SETOPTIONS:
{
DWORD dwStyle;
const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
ECO_SELECTIONBAR;
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
dwStyle = (dwStyle & ~mask) | (lresult & mask);
SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
return lresult;
}
case EM_SETREADONLY:
{
DWORD dwStyle;
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
dwStyle &= ~ES_READONLY;
if (wParam)
dwStyle |= ES_READONLY;
SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
return lresult;
}
default:
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
}
if (hresult == S_FALSE)
lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
return lresult;
}
static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
BOOL unicode = TRUE;
/* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
unicode = FALSE;
return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
}
static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
}
/******************************************************************
* RichEditANSIWndProc (RICHED20.10)
*/
LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
return RichEditWndProcA(hWnd, msg, wParam, lParam);
}
/******************************************************************
* RichEdit10ANSIWndProc (RICHED20.9)
*/
LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
{
ITextHost *texthost;
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
texthost = ME_CreateTextHost(hWnd, TRUE);
return texthost != NULL;
}
return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
}
void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
{
ITextHost_TxNotify(editor->texthost, nCode, NULL);
}
/* Fill buffer with srcChars unicode characters from the start cursor.
*
* buffer: destination buffer
* buflen: length of buffer in characters excluding the NULL terminator.
* start: start of editor text to copy into buffer.
* srcChars: Number of characters to use from the editor text.
* bCRLF: if true, replaces all end of lines with \r\n pairs.
*
* returns the number of characters written excluding the NULL terminator.
*
* The written text is always NULL terminated.
*/
int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
const ME_Cursor *start, int srcChars, BOOL bCRLF)
{
ME_DisplayItem *pRun, *pNextRun;
const WCHAR *pStart = buffer;
const WCHAR cr_lf[] = {'\r', '\n', 0};
const WCHAR *str;
int nLen;
/* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
if (editor->bEmulateVersion10) bCRLF = 0;
pRun = start->pRun;
assert(pRun);
pNextRun = ME_FindItemFwd(pRun, diRun);
nLen = pRun->member.run.strText->nLen - start->nOffset;
str = pRun->member.run.strText->szData + start->nOffset;
/* No '\r' is appended to the last paragraph. */
while (srcChars && buflen && pNextRun)
{
int nFlags = pRun->member.run.nFlags;
if (bCRLF && nFlags & MERF_ENDPARA && ~nFlags & MERF_ENDCELL)
{
if (buflen == 1) break;
/* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
* EM_GETTEXTEX, however, this is done for copying text which
* also uses this function. */
srcChars -= min(nLen, srcChars);
nLen = 2;
str = cr_lf;
} else {
nLen = min(nLen, srcChars);
srcChars -= nLen;
}
nLen = min(nLen, buflen);
buflen -= nLen;
CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
buffer += nLen;
pRun = pNextRun;
pNextRun = ME_FindItemFwd(pRun, diRun);
nLen = pRun->member.run.strText->nLen;
str = pRun->member.run.strText->szData;
}
*buffer = 0;
return buffer - pStart;
}
static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
{
WNDCLASSW wcW;
WNDCLASSA wcA;
wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcW.lpfnWndProc = RichEditWndProcW;
wcW.cbClsExtra = 0;
wcW.cbWndExtra = sizeof(ME_TextEditor *);
wcW.hInstance = NULL; /* hInstance would register DLL-local class */
wcW.hIcon = NULL;
wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcW.hbrBackground = GetStockObject(NULL_BRUSH);
wcW.lpszMenuName = NULL;
if (is_version_nt())
{
wcW.lpszClassName = RICHEDIT_CLASS20W;
if (!RegisterClassW(&wcW)) return FALSE;
wcW.lpszClassName = MSFTEDIT_CLASS;
if (!RegisterClassW(&wcW)) return FALSE;
}
else
{
/* WNDCLASSA/W have the same layout */
wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
}
wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcA.lpfnWndProc = RichEditWndProcA;
wcA.cbClsExtra = 0;
wcA.cbWndExtra = sizeof(ME_TextEditor *);
wcA.hInstance = NULL; /* hInstance would register DLL-local class */
wcA.hIcon = NULL;
wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcA.hbrBackground = GetStockObject(NULL_BRUSH);
wcA.lpszMenuName = NULL;
wcA.lpszClassName = RICHEDIT_CLASS20A;
if (!RegisterClassA(&wcA)) return FALSE;
wcA.lpszClassName = "RichEdit50A";
if (!RegisterClassA(&wcA)) return FALSE;
return TRUE;
}
static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
/* FIXME: Not implemented */
TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
hWnd, msg, get_msg_name(msg), wParam, lParam);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
/* FIXME: Not implemented */
TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
hWnd, msg, get_msg_name(msg), wParam, lParam);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
/******************************************************************
* REExtendedRegisterClass (RICHED20.8)
*
* FIXME undocumented
* Need to check for errors and implement controls and callbacks
*/
LRESULT WINAPI REExtendedRegisterClass(void)
{
WNDCLASSW wcW;
UINT result;
FIXME("semi stub\n");
wcW.cbClsExtra = 0;
wcW.cbWndExtra = 4;
wcW.hInstance = NULL;
wcW.hIcon = NULL;
wcW.hCursor = NULL;
wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcW.lpszMenuName = NULL;
if (!ME_ListBoxRegistered)
{
wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
wcW.lpfnWndProc = REListWndProc;
wcW.lpszClassName = REListBox20W;
if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
}
if (!ME_ComboBoxRegistered)
{
wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
wcW.lpfnWndProc = REComboWndProc;
wcW.lpszClassName = REComboBox20W;
if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
}
result = 0;
if (ME_ListBoxRegistered)
result += 1;
if (ME_ComboBoxRegistered)
result += 2;
return result;
}
static BOOL isurlspecial(WCHAR c)
{
static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
return strchrW( special_chars, c ) != NULL;
}
/**
* This proc takes a selection, and scans it forward in order to select the span
* of a possible URL candidate. A possible URL candidate must start with isalnum
* or one of the following special characters: *|/\+%#@ and must consist entirely
* of the characters allowed to start the URL, plus : (colon) which may occur
* at most once, and not at either end.
*/
static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
const ME_Cursor *start,
int nChars,
ME_Cursor *candidate_min,
ME_Cursor *candidate_max)
{
ME_Cursor cursor = *start;
BOOL foundColon = FALSE;
BOOL candidateStarted = FALSE;
WCHAR lastAcceptedChar = '\0';
while (nChars > 0)
{
WCHAR *strStart = cursor.pRun->member.run.strText->szData;
WCHAR *str = strStart + cursor.nOffset;
int nLen = cursor.pRun->member.run.strText->nLen - cursor.nOffset;
nChars -= nLen;
if (~cursor.pRun->member.run.nFlags & MERF_ENDPARA)
{
/* Find start of candidate */
if (!candidateStarted)
{
while (nLen)
{
nLen--;
if (isalnumW(*str) || isurlspecial(*str))
{
cursor.nOffset = str - strStart;
*candidate_min = cursor;
candidateStarted = TRUE;
lastAcceptedChar = *str++;
break;
}
str++;
}
}
/* Find end of candidate */
if (candidateStarted) {
while (nLen)
{
nLen--;
if (*str == ':' && !foundColon) {
foundColon = TRUE;
} else if (!isalnumW(*str) && !isurlspecial(*str)) {
cursor.nOffset = str - strStart;
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
lastAcceptedChar = *str++;
}
}
} else {
/* End of paragraph: skip it if before candidate span, or terminates
current active span */
if (candidateStarted) {
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
}
/* Reaching this point means no span was found, so get next span */
if (!ME_NextRun(&cursor.pPara, &cursor.pRun)) {
if (candidateStarted) {
/* There are no further runs, so take end of text as end of candidate */
cursor.nOffset = str - strStart;
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
*candidate_max = *candidate_min = cursor;
return FALSE;
}
cursor.nOffset = 0;
}
if (candidateStarted) {
/* There are no further runs, so take end of text as end of candidate */
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
*candidate_max = *candidate_min = cursor;
return FALSE;
}
/**
* This proc evaluates the selection and returns TRUE if it can be considered an URL
*/
static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
#define MAX_PREFIX_LEN 9
struct prefix_s {
const WCHAR text[MAX_PREFIX_LEN];
int length;
}prefixes[] = {
{{'p','r','o','s','p','e','r','o',':'}, 9},
{{'t','e','l','n','e','t',':'}, 7},
{{'g','o','p','h','e','r',':'}, 7},
{{'m','a','i','l','t','o',':'}, 7},
{{'h','t','t','p','s',':'}, 6},
{{'f','i','l','e',':'}, 5},
{{'n','e','w','s',':'}, 5},
{{'w','a','i','s',':'}, 5},
{{'n','n','t','p',':'}, 5},
{{'h','t','t','p',':'}, 5},
{{'w','w','w','.'}, 4},
{{'f','t','p',':'}, 4},
};
WCHAR bufferW[MAX_PREFIX_LEN + 1];
unsigned int i;
ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, 0);
for (i = 0; i < sizeof(prefixes) / sizeof(*prefixes); i++)
{
if (nChars < prefixes[i].length) continue;
if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
return TRUE;
}
return FALSE;
#undef MAX_PREFIX_LEN
}
/**
* This proc walks through the indicated selection and evaluates whether each
* section identified by ME_FindNextURLCandidate and in-between sections have
* their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
* not what it is supposed to be, this proc sets or unsets it as appropriate.
*
* Since this function can cause runs to be split, do not depend on the value
* of the start cursor at the end of the function.
*
* nChars may be set to INT_MAX to update to the end of the text.
*
* Returns TRUE if at least one section was modified.
*/
static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
{
BOOL modified = FALSE;
ME_Cursor startCur = *start;
if (!editor->AutoURLDetect_bEnable) return FALSE;
do
{
CHARFORMAT2W link;
ME_Cursor candidateStart, candidateEnd;
if (ME_FindNextURLCandidate(editor, &startCur, nChars,
&candidateStart, &candidateEnd))
{
/* Section before candidate is not an URL */
int cMin = ME_GetCursorOfs(&candidateStart);
int cMax = ME_GetCursorOfs(&candidateEnd);
if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
candidateStart = candidateEnd;
nChars -= cMax - ME_GetCursorOfs(&startCur);
}
else
{
/* No more candidates until end of selection */
nChars = 0;
}
if (startCur.pRun != candidateStart.pRun ||
startCur.nOffset != candidateStart.nOffset)
{
/* CFE_LINK effect should be consistently unset */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
{
/* CFE_LINK must be unset from this range */
memset(&link, 0, sizeof(CHARFORMAT2W));
link.cbSize = sizeof(link);
link.dwMask = CFM_LINK;
link.dwEffects = 0;
ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
/* Update candidateEnd since setting character formats may split
* runs, which can cause a cursor to be at an invalid offset within
* a split run. */
while (candidateEnd.nOffset >= candidateEnd.pRun->member.run.strText->nLen)
{
candidateEnd.nOffset -= candidateEnd.pRun->member.run.strText->nLen;
candidateEnd.pRun = ME_FindItemFwd(candidateEnd.pRun, diRun);
}
modified = TRUE;
}
}
if (candidateStart.pRun != candidateEnd.pRun ||
candidateStart.nOffset != candidateEnd.nOffset)
{
/* CFE_LINK effect should be consistently set */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
{
/* CFE_LINK must be set on this range */
memset(&link, 0, sizeof(CHARFORMAT2W));
link.cbSize = sizeof(link);
link.dwMask = CFM_LINK;
link.dwEffects = CFE_LINK;
ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
modified = TRUE;
}
}
startCur = candidateEnd;
} while (nChars > 0);
return modified;
}
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