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Sweden-Number/dlls/riched20/editor.c

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/*
* RichEdit - functions dealing with editor object
*
* Copyright 2004 by Krzysztof Foltman
* 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 (only Y value valid)
! - 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_SETLANGOPTIONS 2.0
- EM_SETLIMITTEXT
+ 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_PASTE
+ WM_SETFONT
+ WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
- WM_STYLECHANGING
- WM_STYLECHANGED (things like read-only flag)
+ WM_UNICHAR
Notifications
* EN_CHANGE (sent from the wrong place)
- EN_CORRECTTEXT
- EN_DROPFILES
- EN_ERRSPACE
- EN_HSCROLL
- EN_IMECHANGE
+ EN_KILLFOCUS
- EN_LINK
- EN_MAXTEXT
- EN_MSGFILTER
- EN_OLEOPFAILED
- EN_PROTECTED
+ EN_REQUESTRESIZE
- EN_SAVECLIPBOARD
+ EN_SELCHANGE
+ EN_SETFOCUS
- EN_STOPNOUNDO
* EN_UPDATE (sent from the wrong place)
- EN_VSCROLL
Styles
- ES_AUTOHSCROLL
- ES_AUTOVSCROLL
- ES_CENTER
+ ES_DISABLENOSCROLL (scrollbar is always visible)
- ES_EX_NOCALLOLEINIT
- ES_LEFT
- ES_MULTILINE (currently single line controls aren't supported)
- ES_NOIME
- ES_READONLY (I'm not sure if beeping is the proper behaviour)
- ES_RIGHT
- ES_SAVESEL
- ES_SELFIME
- ES_SUNKEN
- ES_VERTICAL
- ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
- WS_SETFONT
- WS_HSCROLL
+ WS_VSCROLL
*/
/*
* RICHED20 TODO (incomplete):
*
* - messages/styles/notifications listed above
* - 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)
* - horizontal scrolling (not even started)
* - hysteresis during wrapping (related to scrollbars appearing/disappearing)
* - find/replace
* - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
* - italic caret with italic fonts
* - IME
* - most notifications aren't sent at all (the most important ones are)
* - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
* - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
* - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
* - full justification
* - hyphenation
* - tables
* - 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 const WCHAR RichEdit20W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '2', '0', 'W', 0};
static const WCHAR RichEdit50W[] = {'R', 'i', 'c', 'h', 'E', 'd', 'i', 't', '5', '0', 'W', 0};
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_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);
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
}
break;
case rtfForeColor:
fmt.dwMask = CFM_COLOR;
fmt.dwEffects = 0;
if (info->rtfParam == 0)
fmt.dwEffects = CFE_AUTOCOLOR;
else if (info->rtfParam != rtfNoParam)
{
RTFColor *c = RTFGetColor(info, info->rtfParam);
if (c)
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
else
fmt.crTextColor = 0;
}
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 */
static void ME_RTFParAttrHook(RTF_Info *info)
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
switch(info->rtfMinor)
{
case rtfParDef: /* restores default paragraph attributes */
fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS | PFM_OFFSET |
PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE | PFM_STARTINDENT | PFM_TABLE;
/* 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;
fmt.wEffects &= ~PFE_TABLE;
break;
case rtfInTable:
{
ME_DisplayItem *para;
RTFFlushOutputBuffer(info);
para = ME_GetParagraph(info->editor->pCursors[0].pRun);
assert(para->member.para.pCells);
fmt.dwMask |= PFM_TABLE;
fmt.wEffects |= PFE_TABLE;
break;
}
case rtfFirstIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
fmt.dxStartIndent += info->rtfParam;
fmt.dxOffset = -info->rtfParam;
break;
case rtfLeftIndent:
/* we assume rtfLeftIndent is always specified before rtfFirstIndent */
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask |= PFM_STARTINDENT;
fmt.dxStartIndent = info->rtfParam;
fmt.dxOffset = 0;
break;
case rtfRightIndent:
fmt.dwMask = PFM_RIGHTINDENT;
fmt.dxRightIndent = info->rtfParam;
break;
case rtfQuadLeft:
case rtfQuadJust:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_LEFT;
break;
case rtfQuadRight:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_RIGHT;
break;
case rtfQuadCenter:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_CENTER;
break;
case rtfTabPos:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_TABSTOPS))
{
fmt.dwMask |= PFM_TABSTOPS;
fmt.cTabCount = 0;
}
if (fmt.cTabCount < MAX_TAB_STOPS)
fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
break;
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:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.dwMask |= PFM_BORDER;
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 1;
break;
case rtfBorderRight:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.dwMask |= PFM_BORDER;
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 2;
break;
case rtfBorderTop:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.dwMask |= PFM_BORDER;
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 4;
break;
case rtfBorderBottom:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.dwMask |= PFM_BORDER;
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 8;
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;
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;
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;
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;
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;
break;
case rtfBorderWidth:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
break;
case rtfBorderSpace:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderSpace = info->rtfParam;
break;
}
if (fmt.dwMask) {
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ?*/
ME_SetSelectionParaFormat(info->editor, &fmt);
}
}
static void ME_RTFTblAttrHook(RTF_Info *info)
{
ME_DisplayItem *para;
switch (info->rtfMinor)
{
case rtfRowDef:
RTFFlushOutputBuffer(info);
para = ME_GetParagraph(info->editor->pCursors[0].pRun);
/* Release possibly inherited cell definitions */
ME_DestroyTableCellList(para);
para->member.para.pCells = ALLOC_OBJ(ME_TableCell);
para->member.para.pCells->nRightBoundary = 0;
para->member.para.pCells->next = NULL;
para->member.para.pLastCell = para->member.para.pCells;
break;
case rtfCellPos:
RTFFlushOutputBuffer(info);
para = ME_GetParagraph(info->editor->pCursors[0].pRun);
if (para->member.para.pLastCell->nRightBoundary)
{
ME_TableCell *pCell = ALLOC_OBJ(ME_TableCell);
pCell->next = NULL;
para->member.para.pLastCell->next = pCell;
para->member.para.pLastCell = pCell;
}
para->member.para.pLastCell->nRightBoundary = info->rtfParam;
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].fmt = info->style->fmt;
info->stack[info->stackTop].codePage = info->codePage;
info->stack[info->stackTop].unicodeLength = info->unicodeLength;
}
info->stackTop++;
info->styleChanged = FALSE;
break;
case rtfEndGroup:
{
ME_Style *s;
RTFFlushOutputBuffer(info);
info->stackTop--;
if (info->stackTop<=0) {
info->rtfClass = rtfEOF;
return;
}
assert(info->stackTop >= 0);
if (info->styleChanged)
{
/* FIXME too slow ? how come ? */
s = ME_ApplyStyle(info->style, &info->stack[info->stackTop].fmt);
ME_ReleaseStyle(info->style);
info->style = s;
info->codePage = info->stack[info->stackTop].codePage;
info->unicodeLength = info->stack[info->stackTop].unicodeLength;
}
break;
}
}
break;
case rtfControl:
switch(info->rtfMajor)
{
case rtfCharAttr:
ME_RTFCharAttrHook(info);
break;
case rtfParAttr:
ME_RTFParAttrHook(info);
break;
case rtfTblAttr:
ME_RTFTblAttrHook(info);
break;
case rtfSpecialChar:
if (info->rtfMinor == rtfCell)
{
RTFFlushOutputBuffer(info);
ME_InsertTableCellFromCursor(info->editor, 0);
}
}
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, to2, nUndoMode;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
BOOL invalidRTF = FALSE;
TRACE("stream==%p hWnd==%p format==0x%X\n", stream, editor->hWnd, format);
editor->nEventMask = 0;
ME_GetSelection(editor, &from, &to);
if ((format & SFF_SELECTION) && (editor->mode & TM_RICHTEXT)) {
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to-from);
}
else {
ME_DisplayItem *para_item;
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
from = to = 0;
ME_ClearTempStyle(editor);
para_item = ME_GetParagraph(editor->pCursors[0].pRun);
ME_SetDefaultParaFormat(para_item->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.hwndEdit = editor->hWnd;
parser.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
RTFDestroy(&parser);
if (parser.lpRichEditOle)
IRichEditOle_Release(parser.lpRichEditOle);
if (!inStream.editstream->dwError && parser.stackTop > 0)
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 newfrom, newto;
ME_GetSelection(editor, &newfrom, &newto);
if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
WCHAR lastchar[3] = {'\0', '\0'};
int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
ME_GetTextW(editor, lastchar, newto - linebreakSize, linebreakSize, 0);
if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
ME_InternalDeleteText(editor, newto - linebreakSize, linebreakSize);
}
}
}
style = parser.style;
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, &inStream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
ME_GetSelection(editor, &to, &to2);
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
}
/* 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);
}
HideCaret(editor->hWnd);
ME_MoveCaret(editor);
ShowCaret(editor->hWnd);
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)&data;
es.pfnCallback = ME_ReadFromRTFString;
ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
}
ME_DisplayItem *
ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset)
{
ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
int runLength;
while (item && item->member.para.next_para->member.para.nCharOfs <= nOffset)
item = ME_FindItemFwd(item, diParagraph);
if (!item)
return item;
nOffset -= item->member.para.nCharOfs;
if (nItemType == diParagraph) {
if (nItemOffset)
*nItemOffset = nOffset;
return item;
}
do {
item = ME_FindItemFwd(item, diRun);
runLength = ME_StrLen(item->member.run.strText);
if (item->member.run.nFlags & MERF_ENDPARA)
runLength = item->member.run.nCR + item->member.run.nLF;
} while (item && (item->member.run.nCharOfs + runLength <= nOffset));
if (item) {
nOffset -= item->member.run.nCharOfs;
/* Special case: nOffset may not point exactly at the division between the
\r and the \n in 1.0 emulation. If such a case happens, it is sent
into the next run, if one exists
*/
if ( item->member.run.nFlags & MERF_ENDPARA
&& nOffset == item->member.run.nCR
&& item->member.run.nLF > 0) {
ME_DisplayItem *nextItem;
nextItem = ME_FindItemFwd(item, diRun);
if (nextItem) {
nOffset = 0;
item = nextItem;
}
}
if (nItemOffset)
*nItemOffset = nOffset;
}
return item;
}
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 nStart, nEnd;
int nMin, nMax;
ME_DisplayItem *item;
ME_DisplayItem *para;
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)
{
nStart = nMin - 1;
item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
if (!item)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
wLastChar = item->member.run.strText->szData[nStart];
}
nStart = nMin;
item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
if (!item)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
para = ME_GetParagraph(item);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
{
ME_DisplayItem *pCurItem = item;
int nCurStart = nStart;
int nMatched = 0;
while (pCurItem && 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 == ME_StrLen(pCurItem->member.run.strText))
{
pNextItem = ME_FindItemFwd(pCurItem, diRun);
nNextStart = -nMatched;
}
if (pNextItem)
wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
else
wNextChar = ' ';
if (isalnumW(wNextChar))
break;
}
nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
if (chrgText)
{
chrgText->cpMin = nStart;
chrgText->cpMax = nStart + nLen;
}
TRACE("found at %d-%d\n", nStart, nStart + nLen);
return nStart;
}
if (nCurStart + nMatched == ME_StrLen(pCurItem->member.run.strText))
{
pCurItem = ME_FindItemFwd(pCurItem, diRun);
para = ME_GetParagraph(pCurItem);
nCurStart = -nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
else
wLastChar = ' ';
nStart++;
if (nStart == ME_StrLen(item->member.run.strText))
{
item = ME_FindItemFwd(item, diRun);
para = ME_GetParagraph(item);
nStart = 0;
}
}
}
else /* Backward search */
{
/* If possible, find the character after where the search ends */
if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
{
nEnd = nMax + 1;
item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
if (!item)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
wLastChar = item->member.run.strText->szData[nEnd];
}
nEnd = nMax;
item = ME_FindItemAtOffset(editor, diRun, nEnd, &nEnd);
if (!item)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
para = ME_GetParagraph(item);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
{
ME_DisplayItem *pCurItem = item;
int nCurEnd = nEnd;
int nMatched = 0;
if (nCurEnd - nMatched == 0)
{
pCurItem = ME_FindItemBack(pCurItem, diRun);
para = ME_GetParagraph(pCurItem);
nCurEnd = ME_StrLen(pCurItem->member.run.strText) + 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;
/* 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 = ME_StrLen(pPrevItem->member.run.strText) + nMatched;
}
if (pPrevItem)
wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
else
wPrevChar = ' ';
if (isalnumW(wPrevChar))
break;
}
nStart = para->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)
{
pCurItem = ME_FindItemBack(pCurItem, diRun);
/* Don't care about pCurItem becoming NULL here; it's already taken
* care of in the exterior loop condition */
para = ME_GetParagraph(pCurItem);
nCurEnd = ME_StrLen(pCurItem->member.run.strText) + nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
else
wLastChar = ' ';
nEnd--;
if (nEnd < 0)
{
item = ME_FindItemBack(item, diRun);
para = ME_GetParagraph(item);
nEnd = ME_StrLen(item->member.run.strText);
}
}
}
TRACE("not found\n");
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
/* helper to send a msg filter notification */
static BOOL
ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
{
MSGFILTER msgf;
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 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 (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 (GetWindowLongW(editor->hWnd, GWL_STYLE) & 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))
{
/* Backspace can be grouped for a single undo */
ME_ContinueCoalescingTransaction(editor);
ME_DeleteTextAtCursor(editor, 1, 1);
ME_CommitCoalescingUndo(editor);
}
else
return TRUE;
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
ME_SendRequestResize(editor, FALSE);
return TRUE;
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;
}
/* 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(HWND hWnd, 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;
clickMsg.hwnd = hWnd;
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)
{
POINT pt;
BOOL isExact;
int offset;
DWORD messagePos = GetMessagePos();
pt.x = (short)LOWORD(messagePos);
pt.y = (short)HIWORD(messagePos);
ScreenToClient(editor->hWnd, &pt);
if ((GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_SELECTIONBAR) &&
(pt.x < editor->selofs ||
(editor->nSelectionType == stLine && GetCapture() == editor->hWnd)))
{
SetCursor(hLeft);
return TRUE;
}
offset = ME_CharFromPos(editor, pt.x, pt.y, &isExact);
if (isExact)
{
if (editor->AutoURLDetect_bEnable)
{
ME_Cursor cursor;
ME_Run *run;
ME_CursorFromCharOfs(editor, offset, &cursor);
run = &cursor.pRun->member.run;
if (editor->AutoURLDetect_bEnable &&
run->style->fmt.dwMask & CFM_LINK &&
run->style->fmt.dwEffects & CFE_LINK)
{
SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_HAND));
return TRUE;
}
}
if (ME_IsSelection(editor))
{
int selStart, selEnd;
ME_GetSelection(editor, &selStart, &selEnd);
if (selStart <= offset && selEnd >= offset) {
SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_ARROW));
return TRUE;
}
}
}
SetCursor(LoadCursorW(NULL, (WCHAR*)IDC_IBEAM));
return TRUE;
}
static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
{
CHARRANGE selrange;
HMENU menu;
int seltype = 0;
if(!editor->lpOleCallback)
return FALSE;
ME_GetSelection(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(HWND hWnd) {
ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
int i;
ed->hWnd = hWnd;
ed->bEmulateVersion10 = FALSE;
ed->pBuffer = ME_MakeText();
ed->nZoomNumerator = ed->nZoomDenominator = 0;
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);
ed->pCursors[0].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
ed->pCursors[0].nOffset = 0;
ed->pCursors[1].pRun = ME_FindItemFwd(ed->pBuffer->pFirst, diRun);
ed->pCursors[1].nOffset = 0;
ed->pCursors[2] = ed->pCursors[0];
ed->pCursors[3] = ed->pCursors[1];
ed->nLastTotalLength = ed->nTotalLength = 0;
ed->nHeight = 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 = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
ed->bRedraw = TRUE;
ed->bWordWrap = (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL) ? FALSE : TRUE;
ed->bHideSelection = FALSE;
ed->nInvalidOfs = -1;
ed->pfnWordBreak = NULL;
ed->lpOleCallback = NULL;
ed->mode = TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
ed->AutoURLDetect_bEnable = FALSE;
ed->bHaveFocus = 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);
if (GetWindowLongW(hWnd, GWL_STYLE) & ES_SELECTIONBAR)
ed->selofs = SELECTIONBAR_WIDTH;
else
ed->selofs = 0;
ed->nSelectionType = stPosition;
if (GetWindowLongW(hWnd, GWL_STYLE) & ES_PASSWORD)
ed->cPasswordMask = '*';
else
ed->cPasswordMask = 0;
ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
/* Default vertical 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;
OleInitialize(NULL);
return ed;
}
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 = (WORD *)GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = 2*i;
GlobalUnlock(pData->hData);
return 0;
}
static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int i;
BYTE *pSrc, *pDest;
pDest = lpBuff;
pSrc = (BYTE *)GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = i;
GlobalUnlock(pData->hData);
return 0;
}
void ME_DestroyEditor(ME_TextEditor *editor)
{
ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
ME_DisplayItem *p = pFirst, *pNext = NULL;
int i;
ME_ClearTempStyle(editor);
ME_EmptyUndoStack(editor);
while(p) {
pNext = p->next;
ME_DestroyDisplayItem(p);
p = pNext;
}
ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
if (editor->pFontCache[i].hFont)
DeleteObject(editor->pFontCache[i].hFont);
}
if (editor->rgbBackColor != -1)
DeleteObject(editor->hbrBackground);
if(editor->lpOleCallback)
IUnknown_Release(editor->lpOleCallback);
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(RichEdit20W, 0);
UnregisterClassW(RichEdit50W, 0);
UnregisterClassA("RichEdit20A", 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;
}
#define UNSUPPORTED_MSG(e) \
case e: \
FIXME(#e ": stub\n"); \
return DefWindowProcW(hWnd, msg, wParam, lParam);
static const char * const edit_messages[] = {
"EM_GETSEL",
"EM_SETSEL",
"EM_GETRECT",
"EM_SETRECT",
"EM_SETRECTNP",
"EM_SCROLL",
"EM_LINESCROLL",
"EM_SCROLLCARET",
"EM_GETMODIFY",
"EM_SETMODIFY",
"EM_GETLINECOUNT",
"EM_LINEINDEX",
"EM_SETHANDLE",
"EM_GETHANDLE",
"EM_GETTHUMB",
"EM_UNKNOWN_BF",
"EM_UNKNOWN_C0",
"EM_LINELENGTH",
"EM_REPLACESEL",
"EM_UNKNOWN_C3",
"EM_GETLINE",
"EM_LIMITTEXT",
"EM_CANUNDO",
"EM_UNDO",
"EM_FMTLINES",
"EM_LINEFROMCHAR",
"EM_UNKNOWN_CA",
"EM_SETTABSTOPS",
"EM_SETPASSWORDCHAR",
"EM_EMPTYUNDOBUFFER",
"EM_GETFIRSTVISIBLELINE",
"EM_SETREADONLY",
"EM_SETWORDBREAKPROC",
"EM_GETWORDBREAKPROC",
"EM_GETPASSWORDCHAR",
"EM_SETMARGINS",
"EM_GETMARGINS",
"EM_GETLIMITTEXT",
"EM_POSFROMCHAR",
"EM_CHARFROMPOS"
};
static const char * const richedit_messages[] = {
"EM_CANPASTE",
"EM_DISPLAYBAND",
"EM_EXGETSEL",
"EM_EXLIMITTEXT",
"EM_EXLINEFROMCHAR",
"EM_EXSETSEL",
"EM_FINDTEXT",
"EM_FORMATRANGE",
"EM_GETCHARFORMAT",
"EM_GETEVENTMASK",
"EM_GETOLEINTERFACE",
"EM_GETPARAFORMAT",
"EM_GETSELTEXT",
"EM_HIDESELECTION",
"EM_PASTESPECIAL",
"EM_REQUESTRESIZE",
"EM_SELECTIONTYPE",
"EM_SETBKGNDCOLOR",
"EM_SETCHARFORMAT",
"EM_SETEVENTMASK",
"EM_SETOLECALLBACK",
"EM_SETPARAFORMAT",
"EM_SETTARGETDEVICE",
"EM_STREAMIN",
"EM_STREAMOUT",
"EM_GETTEXTRANGE",
"EM_FINDWORDBREAK",
"EM_SETOPTIONS",
"EM_GETOPTIONS",
"EM_FINDTEXTEX",
"EM_GETWORDBREAKPROCEX",
"EM_SETWORDBREAKPROCEX",
"EM_SETUNDOLIMIT",
"EM_UNKNOWN_USER_83",
"EM_REDO",
"EM_CANREDO",
"EM_GETUNDONAME",
"EM_GETREDONAME",
"EM_STOPGROUPTYPING",
"EM_SETTEXTMODE",
"EM_GETTEXTMODE",
"EM_AUTOURLDETECT",
"EM_GETAUTOURLDETECT",
"EM_SETPALETTE",
"EM_GETTEXTEX",
"EM_GETTEXTLENGTHEX",
"EM_SHOWSCROLLBAR",
"EM_SETTEXTEX",
"EM_UNKNOWN_USER_98",
"EM_UNKNOWN_USER_99",
"EM_SETPUNCTUATION",
"EM_GETPUNCTUATION",
"EM_SETWORDWRAPMODE",
"EM_GETWORDWRAPMODE",
"EM_SETIMECOLOR",
"EM_GETIMECOLOR",
"EM_SETIMEOPTIONS",
"EM_GETIMEOPTIONS",
"EM_CONVPOSITION",
"EM_UNKNOWN_USER_109",
"EM_UNKNOWN_USER_110",
"EM_UNKNOWN_USER_111",
"EM_UNKNOWN_USER_112",
"EM_UNKNOWN_USER_113",
"EM_UNKNOWN_USER_114",
"EM_UNKNOWN_USER_115",
"EM_UNKNOWN_USER_116",
"EM_UNKNOWN_USER_117",
"EM_UNKNOWN_USER_118",
"EM_UNKNOWN_USER_119",
"EM_SETLANGOPTIONS",
"EM_GETLANGOPTIONS",
"EM_GETIMECOMPMODE",
"EM_FINDTEXTW",
"EM_FINDTEXTEXW",
"EM_RECONVERSION",
"EM_SETIMEMODEBIAS",
"EM_GETIMEMODEBIAS"
};
static const char *
get_msg_name(UINT msg)
{
if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
return edit_messages[msg - EM_GETSEL];
if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
return richedit_messages[msg - EM_CANPASTE];
return "";
}
static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam, BOOL unicode)
{
ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
TRACE("hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
if (!editor && msg != WM_NCCREATE && msg != WM_NCDESTROY) {
ERR("called with invalid hWnd %p - application bug?\n", hWnd);
return 0;
}
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) missing in Wine headers */
UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
/* UNSUPPORTED_MSG(EM_GETOLEINTERFACE) separate stub */
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETTEXTMODE)
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_SETPALETTE)
UNSUPPORTED_MSG(EM_SETTABSTOPS)
UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
UNSUPPORTED_MSG(WM_STYLECHANGING)
UNSUPPORTED_MSG(WM_STYLECHANGED)
/* 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_WANTARROWS;
if(lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
{
int vk = (int)((LPMSG)lParam)->wParam;
/* if style says we want return key */
if((vk == VK_RETURN) && (GetWindowLongW(hWnd, GWL_STYLE) & ES_WANTRETURN))
{
code |= DLGC_WANTMESSAGE;
}
/* we always handle ctrl-tab */
if((vk == VK_TAB) && (GetKeyState(VK_CONTROL) & 0x8000))
{
code |= DLGC_WANTMESSAGE;
}
}
return code;
}
case WM_NCCREATE:
{
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
TRACE("WM_NCCREATE: style 0x%08x\n", pcs->style);
editor = ME_MakeEditor(hWnd);
SetWindowLongPtrW(hWnd, 0, (LONG_PTR)editor);
return TRUE;
}
case EM_EMPTYUNDOBUFFER:
ME_EmptyUndoStack(editor);
return 0;
case EM_GETSEL:
{
/* Note: wParam/lParam can be NULL */
UINT from, to;
PUINT pfrom = wParam ? (PUINT)wParam : &from;
PUINT pto = lParam ? (PUINT)lParam : &to;
ME_GetSelection(editor, (int *)pfrom, (int *)pto);
if ((*pfrom|*pto) & 0xFFFF0000)
return -1;
return MAKELONG(*pfrom,*pto);
}
case EM_EXGETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
ME_GetSelection(editor, &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;
DWORD settings = GetWindowLongW(hWnd, GWL_STYLE) & mask;
return settings;
}
case EM_SETOPTIONS:
{
/* these flags are equivalent to ES_* counterparts
* ECO_READONLY is already implemented in the code, only requires
* setting the bit to work
*/
DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
DWORD raw = GetWindowLongW(hWnd, GWL_STYLE);
DWORD settings = mask & raw;
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;
}
SetWindowLongW(hWnd, GWL_STYLE, (raw & ~mask) | (settings & mask));
if (settings & ECO_AUTOWORDSELECTION)
FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
if (settings & ECO_SELECTIONBAR)
editor->selofs = SELECTIONBAR_WIDTH;
else
editor->selofs = 0;
ME_WrapMarkedParagraphs(editor);
if (settings & ECO_VERTICAL)
FIXME("ECO_VERTICAL not implemented yet!\n");
if (settings & ECO_AUTOHSCROLL)
FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
if (settings & ECO_AUTOVSCROLL)
FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
if (settings & ECO_NOHIDESEL)
FIXME("ECO_NOHIDESEL not implemented yet!\n");
if (settings & ECO_WANTRETURN)
FIXME("ECO_WANTRETURN not implemented yet!\n");
return settings;
}
case EM_SETSEL:
{
ME_InvalidateSelection(editor);
ME_SetSelection(editor, wParam, lParam);
ME_InvalidateSelection(editor);
HideCaret(editor->hWnd);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_SETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
ME_ScrollAbs(editor, 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);
HideCaret(editor->hWnd);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return end;
}
case EM_SHOWSCROLLBAR:
{
ShowScrollBar(editor->hWnd, wParam, lParam);
return 0;
}
case EM_SETTEXTEX:
{
LPWSTR wszText;
SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
size_t len;
int from, to;
ME_Style *style;
int oldModify = editor->nModifyStep;
if (!pStruct) return 0;
TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
pStruct->codepage == 1200 ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
pStruct->flags, pStruct->codepage);
/* FIXME: make use of pStruct->codepage in the to unicode translation */
wszText = lParam ? ME_ToUnicode(pStruct->codepage == 1200, (void *)lParam) : NULL;
len = wszText ? lstrlenW(wszText) : 0;
if (pStruct->flags & ST_SELECTION) {
ME_GetSelection(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to - from);
if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
ME_StreamInRTFString(editor, 1, (char *)lParam);
else ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
}
else {
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
if (pStruct->codepage != 1200 && lParam && !strncmp((char *)lParam, "{\\rtf", 5))
ME_StreamInRTFString(editor, 0, (char *)lParam);
else ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
len = 1;
if (editor->AutoURLDetect_bEnable) ME_UpdateLinkAttribute(editor, 0, -1);
}
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 = GetSysColor(COLOR_WINDOW);
if (wParam)
{
editor->rgbBackColor = -1;
editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
}
else
{
editor->rgbBackColor = lParam;
editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
}
if (editor->bRedraw)
{
InvalidateRect(hWnd, NULL, TRUE);
UpdateWindow(hWnd);
}
return lColor;
}
case EM_GETMODIFY:
return editor->nModifyStep == 0 ? 0 : -1;
case EM_SETMODIFY:
{
if (wParam)
editor->nModifyStep = 1;
else
editor->nModifyStep = 0;
return 0;
}
case EM_SETREADONLY:
{
long nStyle = GetWindowLongW(hWnd, GWL_STYLE);
if (wParam)
nStyle |= ES_READONLY;
else
nStyle &= ~ES_READONLY;
SetWindowLongW(hWnd, GWL_STYLE, nStyle);
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_SetCharFormat(editor, 0, ME_GetTextLength(editor), p);
editor->nModifyStep = 1;
}
} else if (editor->mode & TM_PLAINTEXT) {
return 0;
} else {
int from, to;
ME_GetSelection(editor, &from, &to);
bRepaint = (from != to);
ME_SetSelectionCharFormat(editor, p);
if (from != to) editor->nModifyStep = 1;
}
ME_CommitUndo(editor);
if (bRepaint)
ME_RewrapRepaint(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:
ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
ME_RewrapRepaint(editor);
ME_CommitUndo(editor);
return 0;
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return 0;
case EM_GETFIRSTVISIBLELINE:
{
ME_DisplayItem *p = editor->pBuffer->pFirst;
int y = ME_GetYScrollPos(editor);
int ypara = 0;
int count = 0;
int ystart, yend;
while(p) {
p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
if (p->type == diTextEnd)
break;
if (p->type == diParagraph) {
ypara = p->member.para.nYPos;
continue;
}
ystart = ypara + p->member.row.nYPos;
yend = ystart + p->member.row.nHeight;
if (y < yend) {
break;
}
count++;
}
return count;
}
case EM_HIDESELECTION:
{
editor->bHideSelection = (wParam != 0);
ME_InvalidateSelection(editor);
return 0;
}
case EM_LINESCROLL:
{
ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
return TRUE; /* Should return false if a single line richedit control */
}
case WM_CLEAR:
{
int from, to;
ME_GetSelection(editor, &from, &to);
ME_InternalDeleteText(editor, from, to-from);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case EM_REPLACESEL:
{
int from, to;
ME_Style *style;
LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
size_t len = wszText ? lstrlenW(wszText) : 0;
TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
ME_GetSelection(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, from, to-from);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
/* 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);
if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
if (!wParam)
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return len;
}
case EM_SCROLLCARET:
{
int top, bottom; /* row's edges relative to document top */
int nPos;
ME_DisplayItem *para, *row;
nPos = ME_GetYScrollPos(editor);
row = ME_RowStart(editor->pCursors[0].pRun);
para = ME_GetParagraph(row);
top = para->member.para.nYPos + row->member.row.nYPos;
bottom = top + row->member.row.nHeight;
if (top < nPos) /* caret above window */
ME_ScrollAbs(editor, top);
else if (nPos + editor->sizeWindow.cy < bottom) /*below*/
ME_ScrollAbs(editor, bottom - editor->sizeWindow.cy);
return 0;
}
case WM_SETFONT:
{
LOGFONTW lf;
CHARFORMAT2W fmt;
HDC hDC;
BOOL bRepaint = LOWORD(lParam);
if (!wParam)
wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
hDC = GetDC(hWnd);
ME_CharFormatFromLogFont(hDC, &lf, &fmt);
ReleaseDC(hWnd, hDC);
ME_SetCharFormat(editor, 0, ME_GetTextLength(editor), &fmt);
ME_SetDefaultCharFormat(editor, &fmt);
ME_CommitUndo(editor);
if (bRepaint)
ME_RewrapRepaint(editor);
return 0;
}
case WM_SETTEXT:
{
ME_InternalDeleteText(editor, 0, ME_GetTextLength(editor));
if (lParam)
{
TRACE("WM_SETTEXT lParam==%lx\n",lParam);
if (!unicode && !strncmp((char *)lParam, "{\\rtf", 5))
{
/* 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 (!(GetWindowLongW(hWnd, GWL_STYLE) & 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");
if (editor->AutoURLDetect_bEnable)
{
ME_UpdateLinkAttribute(editor, 0, -1);
}
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:
{
DWORD dwFormat = 0;
EDITSTREAM es;
ME_GlobalDestStruct gds;
UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
UINT cf = 0;
if (IsClipboardFormatAvailable(nRTFFormat))
cf = nRTFFormat, dwFormat = SF_RTF;
else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
else
return 0;
if (!OpenClipboard(hWnd))
return 0;
gds.hData = GetClipboardData(cf);
gds.nLength = 0;
es.dwCookie = (DWORD)&gds;
es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
CloseClipboard();
return 0;
}
case WM_CUT:
case WM_COPY:
{
LPDATAOBJECT dataObj = NULL;
CHARRANGE range;
HRESULT hr = S_OK;
if (editor->cPasswordMask)
return 0; /* Copying or Cutting masked text isn't allowed */
ME_GetSelection(editor, &range.cpMin, &range.cpMax);
if(editor->lpOleCallback)
hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
if(FAILED(hr) || !dataObj)
hr = ME_GetDataObject(editor, &range, &dataObj);
if(SUCCEEDED(hr)) {
hr = OleSetClipboard(dataObj);
IDataObject_Release(dataObj);
}
if (SUCCEEDED(hr) && msg == WM_CUT)
{
ME_InternalDeleteText(editor, range.cpMin, range.cpMax-range.cpMin);
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;
LRESULT rc;
LPSTR bufferA = NULL;
LPWSTR bufferW = NULL;
if (unicode)
bufferW = heap_alloc((wParam + 2) * sizeof(WCHAR));
else
bufferA = heap_alloc(wParam + 2);
ex.cb = (wParam + 2) * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
ex.flags = GT_USECRLF;
ex.codepage = unicode ? 1200 : CP_ACP;
ex.lpDefaultChar = NULL;
ex.lpUsedDefChar = NULL;
rc = RichEditWndProc_common(hWnd, EM_GETTEXTEX, (WPARAM)&ex, unicode ? (LPARAM)bufferW : (LPARAM)bufferA, unicode);
if (unicode)
{
memcpy((LPWSTR)lParam, bufferW, wParam * sizeof(WCHAR));
if (lstrlenW(bufferW) >= wParam) rc = 0;
}
else
{
memcpy((LPSTR)lParam, bufferA, wParam);
if (strlen(bufferA) >= wParam) rc = 0;
}
heap_free(bufferA);
heap_free(bufferW);
return rc;
}
case EM_GETTEXTEX:
{
GETTEXTEX *ex = (GETTEXTEX*)wParam;
int nStart, nCount; /* in chars */
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)
{
ME_GetSelection(editor, &nStart, &nCount);
nCount -= nStart;
}
else
{
nStart = 0;
nCount = 0x7fffffff;
}
if (ex->codepage == 1200)
{
nCount = min(nCount, ex->cb / sizeof(WCHAR) - 1);
return ME_GetTextW(editor, (LPWSTR)lParam, nStart, nCount, ex->flags & GT_USECRLF);
}
else
{
/* potentially each char may be a CR, why calculate the exact value with O(N) when
we can just take a bigger buffer? :)
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;
LPWSTR buffer;
DWORD buflen = ex->cb;
LRESULT rc;
DWORD flags = 0;
nCount = min(nCount, ex->cb - 1);
buffer = heap_alloc((crlfmul*nCount + 1) * sizeof(WCHAR));
buflen = ME_GetTextW(editor, buffer, nStart, nCount, ex->flags & GT_USECRLF);
rc = WideCharToMultiByte(ex->codepage, flags, buffer, buflen+1, (LPSTR)lParam, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
if (rc) rc--; /* do not count 0 terminator */
heap_free(buffer);
return rc;
}
}
case EM_GETSELTEXT:
{
int from, to;
TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
ME_GetSelection(editor, &from, &to);
tr.chrg.cpMin = from;
tr.chrg.cpMax = to;
tr.lpstrText = (WCHAR *)lParam;
return RichEditWndProc_common(hWnd, EM_GETTEXTRANGE, 0, (LPARAM)&tr, unicode);
}
case EM_GETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
point->x = 0; /* FIXME side scrolling not implemented */
point->y = ME_GetYScrollPos(editor);
return 1;
}
case EM_GETTEXTRANGE:
{
TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d emul1.0=%d length=%d\n",
rng->chrg.cpMin, rng->chrg.cpMax, unicode,
editor->bEmulateVersion10, ME_GetTextLength(editor));
if (unicode)
return ME_GetTextW(editor, rng->lpstrText, rng->chrg.cpMin, rng->chrg.cpMax-rng->chrg.cpMin, 0);
else
{
int nLen = rng->chrg.cpMax-rng->chrg.cpMin;
WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
int nChars = ME_GetTextW(editor, p, rng->chrg.cpMin, nLen, 0);
/* FIXME this is a potential security hole (buffer overrun)
if you know more about wchar->mbyte conversion please explain
*/
WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)rng->lpstrText, nLen+1, NULL, NULL);
FREE_OBJ(p);
return nChars;
}
}
case EM_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->member.run.nFlags & MERF_ENDPARA))
{
unsigned int nCopy;
ME_String *strText;
if (run->type != diRun)
break;
strText = run->member.run.strText;
nCopy = min(nCharsLeft, strText->nLen);
if (unicode)
lstrcpynW((LPWSTR) dest, strText->szData, nCopy);
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 (run && (run->member.run.nFlags & MERF_ENDPARA))
{
unsigned int i;
/* Write as many \r as encoded in end-of-paragraph, space allowing */
for (i = 0; i < run->member.run.nCR && nCharsLeft > 0; i++, nCharsLeft--)
{
*((WCHAR *)dest) = '\r';
dest += unicode ? sizeof(WCHAR) : 1;
}
/* Write as many \n as encoded in end-of-paragraph, space allowing */
for (i = 0; i < run->member.run.nLF && nCharsLeft > 0; i++, nCharsLeft--)
{
*((WCHAR *)dest) = '\n';
dest += unicode ? sizeof(WCHAR) : 1;
}
}
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.nCR == 1 && prev_para->member.run.nLF == 0)
{
/* 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, 1));
else
return ME_RowNumberFromCharOfs(editor, wParam);
}
case EM_EXLINEFROMCHAR:
{
if (lParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(editor,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;
if (wParam > ME_GetTextLength(editor))
return 0;
if (wParam == -1)
{
FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
return 0;
}
item = ME_FindItemAtOffset(editor, diRun, wParam, NULL);
item = ME_RowStart(item);
nThisLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item, diRun), 0);
item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
if (item_end->type == diStartRow)
nNextLineOfs = ME_CharOfsFromRunOfs(editor, ME_FindItemFwd(item_end, diRun), 0);
else
{
ME_DisplayItem *endPara;
nNextLineOfs = ME_FindItemFwd(item, diParagraphOrEnd)->member.para.nCharOfs;
endPara = ME_FindItemFwd(item, diParagraphOrEnd);
endPara = ME_FindItemBack(endPara, diRun);
assert(endPara);
assert(endPara->type == diRun);
assert(endPara->member.run.nFlags & MERF_ENDPARA);
nNextLineOfs -= endPara->member.run.nCR + endPara->member.run.nLF;
}
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:
return ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y, NULL);
case EM_POSFROMCHAR:
{
ME_DisplayItem *pRun;
int nCharOfs, nOffset, nLength;
POINTL pt = {0,0};
SCROLLINFO si;
nCharOfs = wParam;
/* detect which API version we're dealing with */
if (wParam >= 0x40000)
nCharOfs = lParam;
nLength = ME_GetTextLength(editor);
if (nCharOfs < nLength) {
ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
assert(pRun->type == diRun);
pt.y = pRun->member.run.pt.y;
pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
pt.y += ME_GetParagraph(pRun)->member.para.nYPos;
} else {
pt.x = 0;
pt.y = editor->pBuffer->pLast->member.para.nYPos;
}
pt.x += editor->selofs;
si.cbSize = sizeof(si);
si.fMask = SIF_POS;
if (GetScrollInfo(editor->hWnd, SB_VERT, &si)) pt.y -= si.nPos;
si.cbSize = sizeof(si);
si.fMask = SIF_POS;
if (GetScrollInfo(editor->hWnd, SB_HORZ, &si)) pt.x -= si.nPos;
if (wParam >= 0x40000) {
*(POINTL *)wParam = pt;
}
return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
}
case WM_CREATE:
{
SCROLLINFO si;
GetClientRect(hWnd, &editor->rcFormat);
if (GetWindowLongW(hWnd, GWL_STYLE) & WS_HSCROLL)
{ /* Squelch the default horizontal scrollbar it would make */
ShowScrollBar(editor->hWnd, SB_HORZ, FALSE);
}
si.cbSize = sizeof(si);
si.fMask = SIF_PAGE | SIF_RANGE;
if (GetWindowLongW(hWnd, GWL_STYLE) & ES_DISABLENOSCROLL)
si.fMask |= SIF_DISABLENOSCROLL;
si.nMax = (si.fMask & SIF_DISABLENOSCROLL) ? 1 : 0;
si.nMin = 0;
si.nPage = 0;
SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
ME_MoveCaret(editor);
return 0;
}
case WM_DESTROY:
ME_DestroyEditor(editor);
SetWindowLongPtrW(hWnd, 0, 0);
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;
SetFocus(hWnd);
ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
ME_CalculateClickCount(hWnd, msg, wParam, lParam));
SetCapture(hWnd);
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 (GetCapture() == hWnd)
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 (GetCapture() == hWnd)
ME_SetCursor(editor);
break;
case WM_LBUTTONUP:
if (GetCapture() == hWnd)
ReleaseCapture();
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_PAINT:
if (editor->bRedraw)
{
HDC hDC;
PAINTSTRUCT ps;
hDC = BeginPaint(hWnd, &ps);
ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
EndPaint(hWnd, &ps);
}
break;
case WM_SETFOCUS:
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_ERASEBKGND:
{
if (editor->bRedraw)
{
HDC hDC = (HDC)wParam;
RECT rc;
if (GetUpdateRect(hWnd,&rc,TRUE))
{
FillRect(hDC, &rc, editor->hbrBackground);
}
}
return 1;
}
case WM_COMMAND:
TRACE("editor wnd command = %d\n", LOWORD(wParam));
return 0;
case WM_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:
{
WCHAR wstr;
if (unicode)
wstr = (WCHAR)wParam;
else
{
CHAR charA = wParam;
MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
}
switch (wstr)
{
case 1: /* Ctrl-A */
ME_SetSelection(editor, 0, -1);
return 0;
case 3: /* Ctrl-C */
SendMessageW(editor->hWnd, WM_COPY, 0, 0);
return 0;
}
if (GetWindowLongW(editor->hWnd, GWL_STYLE) & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return 0; /* FIXME really 0 ? */
}
switch (wstr)
{
case 22: /* Ctrl-V */
SendMessageW(editor->hWnd, WM_PASTE, 0, 0);
return 0;
case 24: /* Ctrl-X */
SendMessageW(editor->hWnd, WM_CUT, 0, 0);
return 0;
case 25: /* Ctrl-Y */
SendMessageW(editor->hWnd, EM_REDO, 0, 0);
return 0;
case 26: /* Ctrl-Z */
SendMessageW(editor->hWnd, EM_UNDO, 0, 0);
return 0;
}
if (((unsigned)wstr)>=' '
|| (wstr=='\r' && (GetWindowLongW(hWnd, GWL_STYLE) & ES_MULTILINE))
|| wstr=='\t') {
/* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
/* WM_CHAR is restricted to nTextLimit */
int from, to;
ME_GetSelection(editor, &from, &to);
if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
ME_Style *style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_ContinueCoalescingTransaction(editor);
if (wstr == '\r' && (GetKeyState(VK_SHIFT) & 0x8000))
ME_InsertEndRowFromCursor(editor, 0);
else
ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
ME_ReleaseStyle(style);
ME_CommitCoalescingUndo(editor);
SetCursor(NULL);
}
if (editor->AutoURLDetect_bEnable) ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
case WM_UNICHAR:
if (unicode)
{
if(wParam == UNICODE_NOCHAR) return TRUE;
if(wParam <= 0x000fffff)
{
if(wParam > 0xffff) /* convert to surrogates */
{
wParam -= 0x10000;
SendMessageW(editor->hWnd, WM_CHAR, (wParam >> 10) + 0xd800, 0);
SendMessageW(editor->hWnd, WM_CHAR, (wParam & 0x03ff) + 0xdc00, 0);
}
else SendMessageW(editor->hWnd, WM_CHAR, wParam, 0);
}
return 0;
}
break;
case EM_STOPGROUPTYPING:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
return 0;
case EM_SCROLL: /* fall through */
case WM_VSCROLL:
{
int origNPos;
int lineHeight;
origNPos = ME_GetYScrollPos(editor);
lineHeight = 24;
if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
if (lineHeight <= 0) lineHeight = 24;
switch(LOWORD(wParam))
{
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:
ME_ScrollAbs(editor,HIWORD(wParam));
break;
}
if (msg == EM_SCROLL)
return 0x00010000 | (((ME_GetYScrollPos(editor) - origNPos)/lineHeight) & 0xffff);
break;
}
case WM_MOUSEWHEEL:
{
int gcWheelDelta;
UINT pulScrollLines;
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
gcWheelDelta = -GET_WHEEL_DELTA_WPARAM(wParam);
if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
{
/* FIXME follow the original */
ME_ScrollDown(editor,pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8);
}
break;
}
case EM_GETRECT:
{
*((RECT *)lParam) = editor->rcFormat;
return 0;
}
case EM_SETRECT:
case EM_SETRECTNP:
{
if (lParam)
{
RECT *rc = (RECT *)lParam;
if (wParam)
{
editor->rcFormat.left += rc->left;
editor->rcFormat.top += rc->top;
editor->rcFormat.right += rc->right;
editor->rcFormat.bottom += rc->bottom;
}
else
{
editor->rcFormat = *rc;
}
}
else
{
GetClientRect(hWnd, &editor->rcFormat);
}
if (msg != EM_SETRECTNP)
ME_RewrapRepaint(editor);
return 0;
}
case EM_REQUESTRESIZE:
ME_SendRequestResize(editor, TRUE);
return 0;
case WM_SETREDRAW:
if ((editor->bRedraw = wParam))
ME_RewrapRepaint(editor);
return 0;
case WM_SIZE:
{
GetClientRect(hWnd, &editor->rcFormat);
ME_RewrapRepaint(editor);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
/* 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,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 = ImmGetContext(hWnd);
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_SETTEXTMODE:
{
LRESULT ret;
int mask = 0;
int changes = 0;
ret = RichEditWndProc_common(hWnd, WM_GETTEXTLENGTH, 0, 0, unicode);
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);
if (editor->bWordWrap != new)
{
editor->bWordWrap = new;
ME_RewrapRepaint(editor);
}
}
else FIXME("Unsupported yet non NULL device in EM_SETTARGETDEVICE\n");
break;
default:
do_default:
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
return 0L;
}
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)
{
LRESULT result;
/* FIXME: this is NOT the same as 2.0 version */
result = RichEditANSIWndProc(hWnd, msg, wParam, lParam);
if (msg == WM_NCCREATE)
{
ME_TextEditor *editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
editor->bEmulateVersion10 = TRUE;
editor->pBuffer->pLast->member.para.nCharOfs = 2;
assert(editor->pBuffer->pLast->prev->type == diRun);
assert(editor->pBuffer->pLast->prev->member.run.nFlags & MERF_ENDPARA);
editor->pBuffer->pLast->prev->member.run.nLF = 1;
}
return result;
}
void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
{
HWND hWnd = editor->hWnd;
SendMessageA(GetParent(hWnd), WM_COMMAND, (nCode<<16)|GetWindowLongW(hWnd, GWLP_ID), (LPARAM)hWnd);
}
void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
{
int x,y;
ME_Cursor tmpCursor;
BOOL isExact;
int nCharOfs; /* The start of the clicked text. Absolute character offset */
ME_Run *tmpRun;
ENLINK info;
x = (short)LOWORD(lParam);
y = (short)HIWORD(lParam);
nCharOfs = ME_CharFromPos(editor, x, y, &isExact);
if (!isExact) return;
ME_CursorFromCharOfs(editor, nCharOfs, &tmpCursor);
tmpRun = &tmpCursor.pRun->member.run;
if ((tmpRun->style->fmt.dwMask & CFM_LINK)
&& (tmpRun->style->fmt.dwEffects & CFE_LINK))
{ /* The clicked run has CFE_LINK set */
info.nmhdr.hwndFrom = editor->hWnd;
info.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
info.nmhdr.code = EN_LINK;
info.msg = msg;
info.wParam = wParam;
info.lParam = lParam;
info.chrg.cpMin = ME_CharOfsFromRunOfs(editor,tmpCursor.pRun,0);
info.chrg.cpMax = info.chrg.cpMin + ME_StrVLen(tmpRun->strText);
SendMessageW(GetParent(editor->hWnd), WM_NOTIFY,info.nmhdr.idFrom, (LPARAM)&info);
}
}
int ME_CountParagraphsBetween(ME_TextEditor *editor, int from, int to)
{
ME_DisplayItem *item = ME_FindItemFwd(editor->pBuffer->pFirst, diParagraph);
int i = 0;
while(item && item->member.para.next_para->member.para.nCharOfs <= from)
item = item->member.para.next_para;
if (!item)
return 0;
while(item && item->member.para.next_para->member.para.nCharOfs <= to) {
item = item->member.para.next_para;
i++;
}
return i;
}
int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, int bCRLF)
{
ME_DisplayItem *item = ME_FindItemAtOffset(editor, diRun, nStart, &nStart);
int nWritten = 0;
WCHAR *pStart = buffer;
if (!item) {
*buffer = 0;
return 0;
}
/* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
if (editor->bEmulateVersion10) bCRLF = 0;
if (nStart)
{
int nLen = ME_StrLen(item->member.run.strText) - nStart;
if (nLen > nChars)
nLen = nChars;
CopyMemory(buffer, item->member.run.strText->szData + nStart, sizeof(WCHAR)*nLen);
nChars -= nLen;
nWritten += nLen;
buffer += nLen;
if (!nChars) {
*buffer = 0;
return nWritten;
}
nStart = 0;
item = ME_FindItemFwd(item, diRun);
}
while(nChars && item)
{
int nLen = ME_StrLen(item->member.run.strText);
if (item->member.run.nFlags & MERF_ENDPARA)
nLen = item->member.run.nCR + item->member.run.nLF;
if (nLen > nChars)
nLen = nChars;
if (item->member.run.nFlags & MERF_ENDPARA)
{
if (!ME_FindItemFwd(item, diRun))
/* No '\r' is appended to the last paragraph. */
nLen = 0;
else if (bCRLF && nChars == 1) {
nLen = 0;
nChars = 0;
} else {
if (bCRLF)
{
/* richedit 2.0 case - actual line-break is \r but should report \r\n */
assert(nLen == 1);
*buffer++ = '\r';
*buffer = '\n'; /* Later updated by nLen==1 at the end of the loop */
nWritten++;
}
else
{
int i, j;
/* richedit 2.0 verbatim has only \r. richedit 1.0 should honor encodings */
i = 0;
while (nChars - i > 0 && i < item->member.run.nCR)
{
buffer[i] = '\r'; i++;
}
j = 0;
while (nChars - i - j > 0 && j < item->member.run.nLF)
{
buffer[i+j] = '\n'; j++;
}
}
}
}
else
CopyMemory(buffer, item->member.run.strText->szData, sizeof(WCHAR)*nLen);
nChars -= nLen;
nWritten += nLen;
buffer += nLen;
if (!nChars)
{
TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
*buffer = 0;
return nWritten;
}
item = ME_FindItemFwd(item, diRun);
}
*buffer = 0;
TRACE("nWritten=%d, actual=%d\n", nWritten, buffer-pStart);
return nWritten;
}
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 = (HBRUSH)GetStockObject(NULL_BRUSH);
wcW.lpszMenuName = NULL;
if (is_version_nt())
{
wcW.lpszClassName = RichEdit20W;
if (!RegisterClassW(&wcW)) return FALSE;
wcW.lpszClassName = RichEdit50W;
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 = (HBRUSH)GetStockObject(NULL_BRUSH);
wcA.lpszMenuName = NULL;
wcA.lpszClassName = "RichEdit20A";
if (!RegisterClassA(&wcA)) return FALSE;
wcA.lpszClassName = "RichEdit50A";
if (!RegisterClassA(&wcA)) return FALSE;
return TRUE;
}
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);
}
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;
}
int ME_AutoURLDetect(ME_TextEditor *editor, WCHAR curChar)
{
struct prefix_s {
const char *text;
int length;
} prefixes[12] = {
{"http:", 5},
{"file:", 6},
{"mailto:", 8},
{"ftp:", 5},
{"https:", 7},
{"gopher:", 8},
{"nntp:", 6},
{"prospero:", 10},
{"telnet:", 8},
{"news:", 6},
{"wais:", 6},
{"www.", 5}
};
CHARRANGE ins_pt;
int curf_ef, link_ef, def_ef;
int cur_prefx, prefx_cnt;
int sel_min, sel_max;
int car_pos = 0;
int text_pos=-1;
int URLmin, URLmax = 0;
FINDTEXTA ft;
CHARFORMAT2W cur_format;
CHARFORMAT2W default_format;
CHARFORMAT2W link;
RichEditANSIWndProc(editor->hWnd, EM_EXGETSEL, (WPARAM) 0, (LPARAM) &ins_pt);
sel_min = ins_pt.cpMin;
sel_max = ins_pt.cpMax;
if (sel_min==sel_max)
car_pos = sel_min;
if (sel_min!=sel_max)
car_pos = ME_GetTextLength(editor)+1;
cur_format.cbSize = sizeof(cur_format);
default_format.cbSize = sizeof(default_format);
RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_SELECTION, (LPARAM) &cur_format);
RichEditANSIWndProc(editor->hWnd, EM_GETCHARFORMAT, SCF_DEFAULT, (LPARAM) &default_format);
link.cbSize = sizeof(link);
link.dwMask = CFM_LINK;
link.dwEffects = CFE_LINK;
curf_ef = cur_format.dwEffects & link.dwEffects;
def_ef = default_format.dwEffects & link.dwEffects;
link_ef = link.dwEffects & link.dwEffects;
if (curf_ef == link_ef)
{
if( curChar == '\n' || curChar=='\r' || curChar==' ')
{
ME_SetSelection(editor, car_pos, car_pos);
RichEditANSIWndProc(editor->hWnd, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM) &default_format);
text_pos=-1;
return 0;
}
}
if (curf_ef == def_ef)
{
cur_prefx = 0;
prefx_cnt = (sizeof(prefixes)/sizeof(struct prefix_s))-1;
while (cur_prefx<=prefx_cnt)
{
if (text_pos == -1)
{
ft.lpstrText = prefixes[cur_prefx].text;
URLmin=max(0,(car_pos-prefixes[cur_prefx].length));
URLmax=max(0, car_pos);
if ((car_pos == 0) && (ME_GetTextLength(editor) != 0))
{
URLmax = ME_GetTextLength(editor)+1;
}
ft.chrg.cpMin = URLmin;
ft.chrg.cpMax = URLmax;
text_pos=RichEditANSIWndProc(editor->hWnd, EM_FINDTEXT, FR_DOWN, (LPARAM)&ft);
cur_prefx++;
}
if (text_pos != -1)
{
ME_SetCharFormat(editor, text_pos, (URLmax-text_pos), &link);
ME_RewrapRepaint(editor);
break;
}
}
}
return 0;
}
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.
*
* sel_max == -1 indicates scan to end of text.
*/
BOOL ME_FindNextURLCandidate(ME_TextEditor *editor, int sel_min, int sel_max,
int * candidate_min, int * candidate_max)
{
ME_DisplayItem * item;
ME_DisplayItem * para;
int nStart;
BOOL foundColon = FALSE;
WCHAR lastAcceptedChar = '\0';
TRACE("sel_min = %d sel_max = %d\n", sel_min, sel_max);
*candidate_min = *candidate_max = -1;
item = ME_FindItemAtOffset(editor, diRun, sel_min, &nStart);
if (!item) return FALSE;
TRACE("nStart = %d\n", nStart);
para = ME_GetParagraph(item);
if (sel_max == -1) sel_max = ME_GetTextLength(editor);
while (item && para->member.para.nCharOfs + item->member.run.nCharOfs + nStart < sel_max)
{
ME_DisplayItem * next_item;
if (!(item->member.run.nFlags & MERF_ENDPARA)) {
/* Find start of candidate */
if (*candidate_min == -1) {
while (nStart < ME_StrLen(item->member.run.strText) &&
!(isalnumW(item->member.run.strText->szData[nStart]) ||
isurlspecial(item->member.run.strText->szData[nStart]))) {
nStart++;
}
if (nStart < ME_StrLen(item->member.run.strText) &&
(isalnumW(item->member.run.strText->szData[nStart]) ||
isurlspecial(item->member.run.strText->szData[nStart]))) {
*candidate_min = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
lastAcceptedChar = item->member.run.strText->szData[nStart];
nStart++;
}
}
/* Find end of candidate */
if (*candidate_min >= 0) {
while (nStart < ME_StrLen(item->member.run.strText) &&
(isalnumW(item->member.run.strText->szData[nStart]) ||
isurlspecial(item->member.run.strText->szData[nStart]) ||
(!foundColon && item->member.run.strText->szData[nStart] == ':') )) {
if (item->member.run.strText->szData[nStart] == ':') foundColon = TRUE;
lastAcceptedChar = item->member.run.strText->szData[nStart];
nStart++;
}
if (nStart < ME_StrLen(item->member.run.strText) &&
!(isalnumW(item->member.run.strText->szData[nStart]) ||
isurlspecial(item->member.run.strText->szData[nStart]) )) {
*candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
nStart++;
if (lastAcceptedChar == ':') (*candidate_max)--;
return TRUE;
}
}
} else {
/* End of paragraph: skip it if before candidate span, or terminates
current active span */
if (*candidate_min >= 0) {
*candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs;
if (lastAcceptedChar == ':') (*candidate_max)--;
return TRUE;
}
}
/* Reaching this point means no span was found, so get next span */
next_item = ME_FindItemFwd(item, diRun);
if (!next_item) {
if (*candidate_min >= 0) {
/* There are no further runs, so take end of text as end of candidate */
*candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
if (lastAcceptedChar == ':') (*candidate_max)--;
return TRUE;
}
}
item = next_item;
para = ME_GetParagraph(item);
nStart = 0;
}
if (item) {
if (*candidate_min >= 0) {
/* There are no further runs, so take end of text as end of candidate */
*candidate_max = para->member.para.nCharOfs + item->member.run.nCharOfs + nStart;
if (lastAcceptedChar == ':') (*candidate_max)--;
return TRUE;
}
}
return FALSE;
}
/**
* This proc evaluates the selection and returns TRUE if it can be considered an URL
*/
BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, int sel_min, int sel_max)
{
struct prefix_s {
const char *text;
int length;
} prefixes[12] = {
/* Code below depends on these being in decreasing length order! */
{"prospero:", 10},
{"telnet:", 8},
{"gopher:", 8},
{"mailto:", 8},
{"https:", 7},
{"file:", 6},
{"news:", 6},
{"wais:", 6},
{"nntp:", 6},
{"http:", 5},
{"www.", 5},
{"ftp:", 5},
};
LPWSTR bufferW = NULL;
WCHAR bufW[32];
int i;
if (sel_max == -1) sel_max = ME_GetTextLength(editor);
assert(sel_min <= sel_max);
for (i = 0; i < sizeof(prefixes) / sizeof(struct prefix_s); i++)
{
if (sel_max - sel_min < prefixes[i].length) continue;
if (bufferW == NULL) {
bufferW = (LPWSTR)heap_alloc((sel_max - sel_min + 1) * sizeof(WCHAR));
}
ME_GetTextW(editor, bufferW, sel_min, min(sel_max - sel_min, strlen(prefixes[i].text)), 0);
MultiByteToWideChar(CP_ACP, 0, prefixes[i].text, -1, bufW, 32);
if (!lstrcmpW(bufW, bufferW))
{
heap_free(bufferW);
return TRUE;
}
}
heap_free(bufferW);
return FALSE;
}
/**
* 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.
*
* Returns TRUE if at least one section was modified.
*/
BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, int sel_min, int sel_max)
{
BOOL modified = FALSE;
int cMin, cMax;
if (sel_max == -1) sel_max = ME_GetTextLength(editor);
do
{
int beforeURL[2];
int inURL[2];
CHARFORMAT2W link;
if (ME_FindNextURLCandidate(editor, sel_min, sel_max, &cMin, &cMax))
{
/* Section before candidate is not an URL */
beforeURL[0] = sel_min;
beforeURL[1] = cMin;
if (ME_IsCandidateAnURL(editor, cMin, cMax))
{
inURL[0] = cMin; inURL[1] = cMax;
}
else
{
beforeURL[1] = cMax;
inURL[0] = inURL[1] = -1;
}
sel_min = cMax;
}
else
{
/* No more candidates until end of selection */
beforeURL[0] = sel_min;
beforeURL[1] = sel_max;
inURL[0] = inURL[1] = -1;
sel_min = sel_max;
}
if (beforeURL[0] < beforeURL[1])
{
/* CFE_LINK effect should be consistently unset */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, beforeURL[0], beforeURL[1], &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, beforeURL[0], beforeURL[1] - beforeURL[0], &link);
modified = TRUE;
}
}
if (inURL[0] < inURL[1])
{
/* CFE_LINK effect should be consistently set */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, inURL[0], inURL[1], &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, inURL[0], inURL[1] - inURL[0], &link);
modified = TRUE;
}
}
} while (sel_min < sel_max);
return modified;
}
void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
{
ME_DisplayItem * startPara, * endPara;
ME_DisplayItem * item;
int dummy;
int from, to;
ME_GetSelection(editor, &from, &to);
if (from > to) from ^= to, to ^=from, from ^= to;
startPara = NULL; endPara = NULL;
/* Find paragraph previous to the one that contains start cursor */
item = ME_FindItemAtOffset(editor, diRun, from, &dummy);
if (item) {
startPara = ME_FindItemBack(item, diParagraph);
item = ME_FindItemBack(startPara, diParagraph);
if (item) startPara = item;
}
/* Find paragraph that contains end cursor */
item = ME_FindItemAtOffset(editor, diRun, to, &dummy);
if (item) {
endPara = ME_FindItemFwd(item, diParagraph);
}
if (startPara && endPara) {
ME_UpdateLinkAttribute(editor,
startPara->member.para.nCharOfs,
endPara->member.para.nCharOfs);
} else if (startPara) {
ME_UpdateLinkAttribute(editor,
startPara->member.para.nCharOfs,
-1);
}
}
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