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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
! - EM_GETTHUMB
+ EM_GETTEXTEX 2.0
+ EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
+ EM_GETTEXTMODE 2.0
? + EM_GETTEXTRANGE (ANSI&Unicode)
- EM_GETTYPOGRAPHYOPTIONS 3.0
- EM_GETUNDONAME
+ EM_GETWORDBREAKPROC
- EM_GETWORDBREAKPROCEX
- EM_GETWORDWRAPMODE 1.0asian
+ EM_GETZOOM 3.0
+ EM_HIDESELECTION
+ EM_LIMITTEXT (Also called EM_SETLIMITTEXT)
+ EM_LINEFROMCHAR
+ EM_LINEINDEX
+ EM_LINELENGTH
+ EM_LINESCROLL
- EM_PASTESPECIAL
+ EM_POSFROMCHAR
+ EM_REDO 2.0
+ EM_REQUESTRESIZE
+ EM_REPLACESEL (proper style?) ANSI&Unicode
+ EM_SCROLL
+ EM_SCROLLCARET
- EM_SELECTIONTYPE
- EM_SETBIDIOPTIONS 3.0
+ EM_SETBKGNDCOLOR
+ EM_SETCHARFORMAT (partly done, no ANSI)
- EM_SETEDITSTYLE
+ EM_SETEVENTMASK (few notifications supported)
- EM_SETFONTSIZE
- EM_SETIMECOLOR 1.0asian
- EM_SETIMEOPTIONS 1.0asian
- EM_SETIMESTATUS
- EM_SETLANGOPTIONS 2.0
- EM_SETLIMITTEXT
- EM_SETMARGINS
+ EM_SETMODIFY (not sure if implementation is correct)
- EM_SETOLECALLBACK
+ EM_SETOPTIONS (partially implemented)
- EM_SETPALETTE 2.0
+ EM_SETPARAFORMAT
+ EM_SETPASSWORDCHAR 2.0
- EM_SETPUNCTUATION 1.0asian
+ EM_SETREADONLY no beep on modification attempt
+ EM_SETRECT
+ EM_SETRECTNP (EM_SETRECT without repainting)
+ EM_SETSEL
+ EM_SETSCROLLPOS 3.0
- EM_SETTABSTOPS 3.0
- EM_SETTARGETDEVICE (partial)
+ EM_SETTEXTEX 3.0 (proper style?)
- EM_SETTEXTMODE 2.0
- EM_SETTYPOGRAPHYOPTIONS 3.0
+ EM_SETUNDOLIMIT 2.0
+ EM_SETWORDBREAKPROC (used only for word movement at the moment)
- EM_SETWORDBREAKPROCEX
- EM_SETWORDWRAPMODE 1.0asian
+ EM_SETZOOM 3.0
+ EM_SHOWSCROLLBAR 2.0
+ EM_STOPGROUPTYPING 2.0
+ EM_STREAMIN
+ EM_STREAMOUT
+ EM_UNDO
+ WM_CHAR
+ WM_CLEAR
+ WM_COPY
+ WM_CUT
+ WM_GETDLGCODE (the current implementation is incomplete)
+ WM_GETTEXT (ANSI&Unicode)
+ WM_GETTEXTLENGTH (ANSI version sucks)
+ WM_HSCROLL
+ WM_PASTE
+ WM_SETFONT
+ WM_SETTEXT (resets undo stack !) (proper style?) ANSI&Unicode
+ WM_STYLECHANGING (seems to do nothing)
+ WM_STYLECHANGED (seems to do nothing)
+ WM_UNICHAR
+ WM_VSCROLL
Notifications
* EN_CHANGE (sent from the wrong place)
- EN_CORRECTTEXT
- EN_DROPFILES
- EN_ERRSPACE
- EN_HSCROLL
- EN_IMECHANGE
+ EN_KILLFOCUS
- EN_LINK
- EN_MAXTEXT
- EN_MSGFILTER
- EN_OLEOPFAILED
- EN_PROTECTED
+ EN_REQUESTRESIZE
- EN_SAVECLIPBOARD
+ EN_SELCHANGE
+ EN_SETFOCUS
- EN_STOPNOUNDO
* EN_UPDATE (sent from the wrong place)
- EN_VSCROLL
Styles
- ES_AUTOHSCROLL
- ES_AUTOVSCROLL
- ES_CENTER
+ ES_DISABLENOSCROLL (scrollbar is always visible)
- ES_EX_NOCALLOLEINIT
- ES_LEFT
- ES_MULTILINE (currently single line controls aren't supported)
- ES_NOIME
- ES_READONLY (I'm not sure if beeping is the proper behaviour)
- ES_RIGHT
- ES_SAVESEL
- ES_SELFIME
- ES_SUNKEN
- ES_VERTICAL
- ES_WANTRETURN (don't know how to do WM_GETDLGCODE part)
- WS_SETFONT
+ WS_HSCROLL
+ WS_VSCROLL
*/
/*
* RICHED20 TODO (incomplete):
*
* - messages/styles/notifications listed above
* - add remaining CHARFORMAT/PARAFORMAT fields
* - right/center align should strip spaces from the beginning
* - pictures/OLE objects (not just smiling faces that lack API support ;-) )
* - COM interface (looks like a major pain in the TODO list)
* - calculate heights of pictures (half-done)
* - hysteresis during wrapping (related to scrollbars appearing/disappearing)
* - find/replace
* - how to implement EM_FORMATRANGE and EM_DISPLAYBAND ? (Mission Impossible)
* - italic caret with italic fonts
* - IME
* - most notifications aren't sent at all (the most important ones are)
* - when should EN_SELCHANGE be sent after text change ? (before/after EN_UPDATE?)
* - WM_SETTEXT may use wrong style (but I'm 80% sure it's OK)
* - EM_GETCHARFORMAT with SCF_SELECTION may not behave 100% like in original (but very close)
* - full justification
* - hyphenation
* - tables
* - ListBox & ComboBox not implemented
*
* Bugs that are probably fixed, but not so easy to verify:
* - EN_UPDATE/EN_CHANGE are handled very incorrectly (should be OK now)
* - undo for ME_JoinParagraphs doesn't store paragraph format ? (it does)
* - check/fix artificial EOL logic (bCursorAtEnd, hardly logical)
* - caret shouldn't be displayed when selection isn't empty
* - check refcounting in style management functions (looks perfect now, but no bugs is suspicious)
* - undo for setting default format (done, might be buggy)
* - styles might be not released properly (looks like they work like charm, but who knows?
*
*/
#include "editor.h"
#include "commdlg.h"
#include "winreg.h"
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "rtf.h"
#include "imm.h"
#include "res.h"
#define STACK_SIZE_DEFAULT 100
#define STACK_SIZE_MAX 1000
#define TEXT_LIMIT_DEFAULT 32767
WINE_DEFAULT_DEBUG_CHANNEL(richedit);
static BOOL ME_RegisterEditorClass(HINSTANCE);
static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
static const WCHAR REListBox20W[] = {'R','E','L','i','s','t','B','o','x','2','0','W', 0};
static const WCHAR REComboBox20W[] = {'R','E','C','o','m','b','o','B','o','x','2','0','W', 0};
static HCURSOR hLeft;
int me_debug = 0;
HANDLE me_heap = NULL;
static BOOL ME_ListBoxRegistered = FALSE;
static BOOL ME_ComboBoxRegistered = FALSE;
static inline int is_version_nt(void)
{
return !(GetVersion() & 0x80000000);
}
static ME_TextBuffer *ME_MakeText(void) {
ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
p1->prev = NULL;
p1->next = p2;
p2->prev = p1;
p2->next = NULL;
p1->member.para.next_para = p2;
p2->member.para.prev_para = p1;
p2->member.para.nCharOfs = 0;
buf->pFirst = p1;
buf->pLast = p2;
buf->pCharStyle = NULL;
return buf;
}
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
{
WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
WCHAR *pText;
TRACE("%08x %p\n", dwFormat, stream);
do {
long nWideChars = 0;
if (!stream->dwSize)
{
ME_StreamInFill(stream);
if (stream->editstream->dwError)
break;
if (!stream->dwSize)
break;
}
if (!(dwFormat & SF_UNICODE))
{
/* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
pText = wszText;
}
else
{
nWideChars = stream->dwSize >> 1;
pText = (WCHAR *)stream->buffer;
}
ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
if (stream->dwSize == 0)
break;
stream->dwSize = 0;
} while(1);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
static void ME_ApplyBorderProperties(RTF_Info *info,
ME_BorderRect *borderRect,
RTFBorder *borderDef)
{
int i, colorNum;
ME_Border *pBorders[] = {&borderRect->top,
&borderRect->left,
&borderRect->bottom,
&borderRect->right};
for (i = 0; i < 4; i++)
{
RTFColor *colorDef = info->colorList;
pBorders[i]->width = borderDef[i].width;
colorNum = borderDef[i].color;
while (colorDef && colorDef->rtfCNum != colorNum)
colorDef = colorDef->rtfNextColor;
if (colorDef)
pBorders[i]->colorRef = RGB(
colorDef->rtfCRed >= 0 ? colorDef->rtfCRed : 0,
colorDef->rtfCGreen >= 0 ? colorDef->rtfCGreen : 0,
colorDef->rtfCBlue >= 0 ? colorDef->rtfCBlue : 0);
else
pBorders[i]->colorRef = RGB(0, 0, 0);
}
}
void ME_RTFCharAttrHook(RTF_Info *info)
{
CHARFORMAT2W fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
fmt.dwEffects = 0;
switch(info->rtfMinor)
{
case rtfPlain:
/* FIXME add more flags once they're implemented */
fmt.dwMask = CFM_BOLD | CFM_ITALIC | CFM_UNDERLINETYPE | CFM_STRIKEOUT | CFM_COLOR | CFM_BACKCOLOR | CFM_SIZE | CFM_WEIGHT;
fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
fmt.yHeight = 12*20; /* 12pt */
fmt.wWeight = FW_NORMAL;
fmt.bUnderlineType = CFU_UNDERLINENONE;
break;
case rtfBold:
fmt.dwMask = CFM_BOLD | CFM_WEIGHT;
fmt.dwEffects = info->rtfParam ? CFE_BOLD : 0;
fmt.wWeight = info->rtfParam ? FW_BOLD : FW_NORMAL;
break;
case rtfItalic:
fmt.dwMask = CFM_ITALIC;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
break;
case rtfDotUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOTTED : CFU_UNDERLINENONE;
break;
case rtfDbUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEDOUBLE : CFU_UNDERLINENONE;
break;
case rtfWordUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = info->rtfParam ? CFU_UNDERLINEWORD : CFU_UNDERLINENONE;
break;
case rtfNoUnderline:
fmt.dwMask = CFM_UNDERLINETYPE;
fmt.bUnderlineType = CFU_UNDERLINENONE;
break;
case rtfStrikeThru:
fmt.dwMask = CFM_STRIKEOUT;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfSubScript:
case rtfSuperScript:
case rtfSubScrShrink:
case rtfSuperScrShrink:
case rtfNoSuperSub:
fmt.dwMask = CFM_SUBSCRIPT|CFM_SUPERSCRIPT;
if (info->rtfMinor == rtfSubScrShrink) fmt.dwEffects = CFE_SUBSCRIPT;
if (info->rtfMinor == rtfSuperScrShrink) fmt.dwEffects = CFE_SUPERSCRIPT;
if (info->rtfMinor == rtfNoSuperSub) fmt.dwEffects = 0;
break;
case rtfInvisible:
fmt.dwMask = CFM_HIDDEN;
fmt.dwEffects = info->rtfParam ? fmt.dwMask : 0;
break;
case rtfBackColor:
fmt.dwMask = CFM_BACKCOLOR;
fmt.dwEffects = 0;
if (info->rtfParam == 0)
fmt.dwEffects = CFE_AUTOBACKCOLOR;
else if (info->rtfParam != rtfNoParam)
{
RTFColor *c = RTFGetColor(info, info->rtfParam);
if (c && c->rtfCBlue >= 0)
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
else
fmt.dwEffects = CFE_AUTOBACKCOLOR;
}
break;
case rtfForeColor:
fmt.dwMask = CFM_COLOR;
fmt.dwEffects = 0;
if (info->rtfParam == 0)
fmt.dwEffects = CFE_AUTOCOLOR;
else if (info->rtfParam != rtfNoParam)
{
RTFColor *c = RTFGetColor(info, info->rtfParam);
if (c && c->rtfCBlue >= 0)
fmt.crTextColor = (c->rtfCBlue<<16)|(c->rtfCGreen<<8)|(c->rtfCRed);
else {
fmt.dwEffects = CFE_AUTOCOLOR;
}
}
break;
case rtfFontNum:
if (info->rtfParam != rtfNoParam)
{
RTFFont *f = RTFGetFont(info, info->rtfParam);
if (f)
{
MultiByteToWideChar(CP_ACP, 0, f->rtfFName, -1, fmt.szFaceName, sizeof(fmt.szFaceName)/sizeof(WCHAR));
fmt.szFaceName[sizeof(fmt.szFaceName)/sizeof(WCHAR)-1] = '\0';
fmt.bCharSet = f->rtfFCharSet;
fmt.dwMask = CFM_FACE | CFM_CHARSET;
fmt.bPitchAndFamily = f->rtfFPitch | (f->rtfFFamily << 4);
}
}
break;
case rtfFontSize:
fmt.dwMask = CFM_SIZE;
if (info->rtfParam != rtfNoParam)
fmt.yHeight = info->rtfParam*10;
break;
}
if (fmt.dwMask) {
ME_Style *style2;
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ? */
style2 = ME_ApplyStyle(info->style, &fmt);
ME_ReleaseStyle(info->style);
info->style = style2;
info->styleChanged = TRUE;
}
}
/* FIXME this function doesn't get any information about context of the RTF tag, which is very bad,
the same tags mean different things in different contexts */
void ME_RTFParAttrHook(RTF_Info *info)
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
fmt.dwMask = 0;
switch(info->rtfMinor)
{
case rtfParDef: /* restores default paragraph attributes */
if (!info->editor->bEmulateVersion10) /* v4.1 */
info->borderType = RTFBorderParaLeft;
else /* v1.0 - 3.0 */
info->borderType = RTFBorderParaTop;
fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
PFM_STARTINDENT;
/* TODO: numbering, shading */
fmt.wAlignment = PFA_LEFT;
fmt.cTabCount = 0;
fmt.dxOffset = fmt.dxStartIndent = fmt.dxRightIndent = 0;
fmt.wBorderWidth = fmt.wBorders = 0;
fmt.wBorderSpace = 0;
fmt.bLineSpacingRule = 0;
fmt.dySpaceBefore = fmt.dySpaceAfter = 0;
fmt.dyLineSpacing = 0;
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->tableDef && info->tableDef->tableRowStart &&
info->tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_Cursor cursor;
ME_DisplayItem *para;
/* We are just after a table row. */
RTFFlushOutputBuffer(info);
cursor = info->editor->pCursors[0];
para = cursor.pPara;
if (para == info->tableDef->tableRowStart->member.para.next_para
&& !cursor.nOffset && !cursor.pRun->member.run.nCharOfs)
{
/* Since the table row end, no text has been inserted, and the \intbl
* control word has not be used. We can confirm that we are not in a
* table anymore.
*/
info->tableDef->tableRowStart = NULL;
info->canInheritInTbl = FALSE;
}
}
} else { /* v1.0 - v3.0 */
fmt.dwMask |= PFM_TABLE;
fmt.wEffects &= ~PFE_TABLE;
}
break;
case rtfNestLevel:
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
while (info->rtfParam > info->nestingLevel) {
RTFTable *tableDef = ALLOC_OBJ(RTFTable);
ZeroMemory(tableDef, sizeof(RTFTable));
tableDef->parent = info->tableDef;
info->tableDef = tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->tableRowStart &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
} else {
ME_Cursor cursor;
WCHAR endl = '\r';
cursor = info->editor->pCursors[0];
if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
}
info->nestingLevel++;
}
info->canInheritInTbl = FALSE;
}
break;
case rtfInTable:
{
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->nestingLevel < 1)
{
RTFTable *tableDef;
if (!info->tableDef)
{
info->tableDef = ALLOC_OBJ(RTFTable);
ZeroMemory(info->tableDef, sizeof(RTFTable));
}
tableDef = info->tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->tableRowStart &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
} else {
ME_Cursor cursor;
WCHAR endl = '\r';
cursor = info->editor->pCursors[0];
if (cursor.nOffset || cursor.pRun->member.run.nCharOfs)
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->tableRowStart = ME_InsertTableRowStartFromCursor(info->editor);
}
info->nestingLevel = 1;
info->canInheritInTbl = TRUE;
}
return;
} else { /* v1.0 - v3.0 */
fmt.dwMask |= PFM_TABLE;
fmt.wEffects |= PFE_TABLE;
}
break;
}
case rtfFirstIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask = PFM_STARTINDENT | PFM_OFFSET;
fmt.dxStartIndent += fmt.dxOffset + info->rtfParam;
fmt.dxOffset = -info->rtfParam;
break;
case rtfLeftIndent:
ME_GetSelectionParaFormat(info->editor, &fmt);
fmt.dwMask = PFM_STARTINDENT;
fmt.dxStartIndent = info->rtfParam - fmt.dxOffset;
break;
case rtfRightIndent:
fmt.dwMask = PFM_RIGHTINDENT;
fmt.dxRightIndent = info->rtfParam;
break;
case rtfQuadLeft:
case rtfQuadJust:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_LEFT;
break;
case rtfQuadRight:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_RIGHT;
break;
case rtfQuadCenter:
fmt.dwMask = PFM_ALIGNMENT;
fmt.wAlignment = PFA_CENTER;
break;
case rtfTabPos:
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_TABSTOPS))
{
fmt.cTabCount = 0;
}
if (fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
fmt.rgxTabs[fmt.cTabCount++] = info->rtfParam;
fmt.dwMask = PFM_TABSTOPS;
break;
case rtfKeep:
fmt.dwMask = PFM_KEEP;
fmt.wEffects = PFE_KEEP;
break;
case rtfNoWidowControl:
fmt.dwMask = PFM_NOWIDOWCONTROL;
fmt.wEffects = PFE_NOWIDOWCONTROL;
break;
case rtfKeepNext:
fmt.dwMask = PFM_KEEPNEXT;
fmt.wEffects = PFE_KEEPNEXT;
break;
case rtfSpaceAfter:
fmt.dwMask = PFM_SPACEAFTER;
fmt.dySpaceAfter = info->rtfParam;
break;
case rtfSpaceBefore:
fmt.dwMask = PFM_SPACEBEFORE;
fmt.dySpaceBefore = info->rtfParam;
break;
case rtfSpaceBetween:
fmt.dwMask = PFM_LINESPACING;
if ((int)info->rtfParam > 0)
{
fmt.dyLineSpacing = info->rtfParam;
fmt.bLineSpacingRule = 3;
}
else
{
fmt.dyLineSpacing = info->rtfParam;
fmt.bLineSpacingRule = 4;
}
case rtfSpaceMultiply:
fmt.dwMask = PFM_LINESPACING;
fmt.dyLineSpacing = info->rtfParam * 20;
fmt.bLineSpacingRule = 5;
break;
case rtfParBullet:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = PFN_BULLET;
break;
case rtfParSimple:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
break;
case rtfParNumDecimal:
fmt.dwMask = PFM_NUMBERING;
fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
break;
case rtfParNumIndent:
fmt.dwMask = PFM_NUMBERINGTAB;
fmt.wNumberingTab = info->rtfParam;
break;
case rtfParNumStartAt:
fmt.dwMask = PFM_NUMBERINGSTART;
fmt.wNumberingStart = info->rtfParam;
break;
case rtfBorderLeft:
info->borderType = RTFBorderParaLeft;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 1;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderRight:
info->borderType = RTFBorderParaRight;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 2;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderTop:
info->borderType = RTFBorderParaTop;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 4;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderBottom:
info->borderType = RTFBorderParaBottom;
ME_GetSelectionParaFormat(info->editor, &fmt);
if (!(fmt.dwMask & PFM_BORDER))
{
fmt.wBorderSpace = 0;
fmt.wBorderWidth = 1;
fmt.wBorders = 0;
}
fmt.wBorders |= 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderSingle:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 1 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderThick:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 2 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderShadow:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 10 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderDouble:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 7 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderDot:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorders &= ~0x700;
fmt.wBorders |= 11 << 8;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderWidth:
{
int borderSide = info->borderType & RTFBorderSideMask;
RTFTable *tableDef = info->tableDef;
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderWidth |= ((info->rtfParam / 15) & 7) << 8;
if ((info->borderType & RTFBorderTypeMask) == RTFBorderTypeCell)
{
RTFBorder *border;
if (!tableDef || tableDef->numCellsDefined >= MAX_TABLE_CELLS)
break;
border = &tableDef->cells[tableDef->numCellsDefined].border[borderSide];
border->width = info->rtfParam;
break;
}
fmt.dwMask = PFM_BORDER;
break;
}
case rtfBorderSpace:
ME_GetSelectionParaFormat(info->editor, &fmt);
/* we assume that borders have been created before (RTF spec) */
fmt.wBorderSpace = info->rtfParam;
fmt.dwMask = PFM_BORDER;
break;
case rtfBorderColor:
{
RTFTable *tableDef = info->tableDef;
int borderSide = info->borderType & RTFBorderSideMask;
int borderType = info->borderType & RTFBorderTypeMask;
switch(borderType)
{
case RTFBorderTypePara:
if (!info->editor->bEmulateVersion10) /* v4.1 */
break;
/* v1.0 - 3.0 treat paragraph and row borders the same. */
case RTFBorderTypeRow:
if (tableDef) {
tableDef->border[borderSide].color = info->rtfParam;
}
break;
case RTFBorderTypeCell:
if (tableDef && tableDef->numCellsDefined < MAX_TABLE_CELLS) {
tableDef->cells[tableDef->numCellsDefined].border[borderSide].color = info->rtfParam;
}
break;
}
break;
}
}
if (fmt.dwMask) {
RTFFlushOutputBuffer(info);
/* FIXME too slow ? how come ?*/
ME_SetSelectionParaFormat(info->editor, &fmt);
}
}
void ME_RTFTblAttrHook(RTF_Info *info)
{
switch (info->rtfMinor)
{
case rtfRowDef:
{
if (!info->editor->bEmulateVersion10) /* v4.1 */
info->borderType = 0; /* Not sure */
else /* v1.0 - 3.0 */
info->borderType = RTFBorderRowTop;
if (!info->tableDef) {
info->tableDef = ME_MakeTableDef(info->editor);
} else {
ME_InitTableDef(info->editor, info->tableDef);
}
break;
}
case rtfCellPos:
{
int cellNum;
if (!info->tableDef)
{
info->tableDef = ME_MakeTableDef(info->editor);
}
cellNum = info->tableDef->numCellsDefined;
if (cellNum >= MAX_TABLE_CELLS)
break;
info->tableDef->cells[cellNum].rightBoundary = info->rtfParam;
if (cellNum < MAX_TAB_STOPS) {
/* Tab stops were used to store cell positions before v4.1 but v4.1
* still seems to set the tabstops without using them. */
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
pFmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
pFmt->rgxTabs[cellNum] = 0x00FFFFFF & info->rtfParam;
}
info->tableDef->numCellsDefined++;
break;
}
case rtfRowBordTop:
info->borderType = RTFBorderRowTop;
break;
case rtfRowBordLeft:
info->borderType = RTFBorderRowLeft;
break;
case rtfRowBordBottom:
info->borderType = RTFBorderRowBottom;
break;
case rtfRowBordRight:
info->borderType = RTFBorderRowRight;
break;
case rtfCellBordTop:
info->borderType = RTFBorderCellTop;
break;
case rtfCellBordLeft:
info->borderType = RTFBorderCellLeft;
break;
case rtfCellBordBottom:
info->borderType = RTFBorderCellBottom;
break;
case rtfCellBordRight:
info->borderType = RTFBorderCellRight;
break;
case rtfRowGapH:
if (info->tableDef)
info->tableDef->gapH = info->rtfParam;
break;
case rtfRowLeftEdge:
if (info->tableDef)
info->tableDef->leftEdge = info->rtfParam;
break;
}
}
void ME_RTFSpecialCharHook(RTF_Info *info)
{
RTFTable *tableDef = info->tableDef;
switch (info->rtfMinor)
{
case rtfNestCell:
if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
break;
/* else fall through since v4.1 treats rtfNestCell and rtfCell the same */
case rtfCell:
if (!tableDef)
break;
RTFFlushOutputBuffer(info);
if (!info->editor->bEmulateVersion10) { /* v4.1 */
if (tableDef->tableRowStart)
{
if (!info->nestingLevel &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
ME_DisplayItem *para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
info->nestingLevel = 1;
}
ME_InsertTableCellFromCursor(info->editor);
}
} else { /* v1.0 - v3.0 */
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE &&
tableDef->numCellsInserted < tableDef->numCellsDefined)
{
WCHAR tab = '\t';
ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
tableDef->numCellsInserted++;
}
}
break;
case rtfNestRow:
if (info->editor->bEmulateVersion10) /* v1.0 - v3.0 */
break;
/* else fall through since v4.1 treats rtfNestRow and rtfRow the same */
case rtfRow:
{
ME_DisplayItem *para, *cell, *run;
int i;
if (!tableDef)
break;
RTFFlushOutputBuffer(info);
if (!info->editor->bEmulateVersion10) { /* v4.1 */
if (!tableDef->tableRowStart)
break;
if (!info->nestingLevel &&
tableDef->tableRowStart->member.para.nFlags & MEPF_ROWEND)
{
para = tableDef->tableRowStart;
para = para->member.para.next_para;
para = ME_InsertTableRowStartAtParagraph(info->editor, para);
tableDef->tableRowStart = para;
info->nestingLevel++;
}
para = tableDef->tableRowStart;
cell = ME_FindItemFwd(para, diCell);
assert(cell && !cell->member.cell.prev_cell);
if (tableDef->numCellsDefined < 1)
{
/* 2000 twips appears to be the cell size that native richedit uses
* when no cell sizes are specified. */
const int defaultCellSize = 2000;
int nRightBoundary = defaultCellSize;
cell->member.cell.nRightBoundary = nRightBoundary;
while (cell->member.cell.next_cell) {
cell = cell->member.cell.next_cell;
nRightBoundary += defaultCellSize;
cell->member.cell.nRightBoundary = nRightBoundary;
}
para = ME_InsertTableCellFromCursor(info->editor);
cell = para->member.para.pCell;
cell->member.cell.nRightBoundary = nRightBoundary;
} else {
for (i = 0; i < tableDef->numCellsDefined; i++)
{
RTFCell *cellDef = &tableDef->cells[i];
cell->member.cell.nRightBoundary = cellDef->rightBoundary;
ME_ApplyBorderProperties(info, &cell->member.cell.border,
cellDef->border);
cell = cell->member.cell.next_cell;
if (!cell)
{
para = ME_InsertTableCellFromCursor(info->editor);
cell = para->member.para.pCell;
}
}
/* Cell for table row delimiter is empty */
cell->member.cell.nRightBoundary = tableDef->cells[i-1].rightBoundary;
}
run = ME_FindItemFwd(cell, diRun);
if (info->editor->pCursors[0].pRun != run ||
info->editor->pCursors[0].nOffset)
{
int nOfs, nChars;
/* Delete inserted cells that aren't defined. */
info->editor->pCursors[1].pRun = run;
info->editor->pCursors[1].pPara = ME_GetParagraph(run);
info->editor->pCursors[1].nOffset = 0;
nOfs = ME_GetCursorOfs(&info->editor->pCursors[1]);
nChars = ME_GetCursorOfs(&info->editor->pCursors[0]) - nOfs;
ME_InternalDeleteText(info->editor, &info->editor->pCursors[1],
nChars, TRUE);
}
para = ME_InsertTableRowEndFromCursor(info->editor);
para->member.para.pFmt->dxOffset = abs(info->tableDef->gapH);
para->member.para.pFmt->dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties(info, &para->member.para.border,
tableDef->border);
info->nestingLevel--;
if (!info->nestingLevel)
{
if (info->canInheritInTbl) {
tableDef->tableRowStart = para;
} else {
while (info->tableDef) {
tableDef = info->tableDef;
info->tableDef = tableDef->parent;
heap_free(tableDef);
}
}
} else {
info->tableDef = tableDef->parent;
heap_free(tableDef);
}
} else { /* v1.0 - v3.0 */
WCHAR endl = '\r';
ME_DisplayItem *para = info->editor->pCursors[0].pPara;
PARAFORMAT2 *pFmt = para->member.para.pFmt;
pFmt->dxOffset = info->tableDef->gapH;
pFmt->dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties(info, &para->member.para.border,
tableDef->border);
while (tableDef->numCellsInserted < tableDef->numCellsDefined)
{
WCHAR tab = '\t';
ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
tableDef->numCellsInserted++;
}
pFmt->cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
if (!tableDef->numCellsDefined)
pFmt->wEffects &= ~PFE_TABLE;
ME_InsertTextFromCursor(info->editor, 0, &endl, 1, info->style);
tableDef->numCellsInserted = 0;
}
break;
}
case rtfTab:
case rtfPar:
if (info->editor->bEmulateVersion10) { /* v1.0 - 3.0 */
ME_DisplayItem *para;
PARAFORMAT2 *pFmt;
RTFFlushOutputBuffer(info);
para = info->editor->pCursors[0].pPara;
pFmt = para->member.para.pFmt;
if (pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
{
/* rtfPar is treated like a space within a table. */
info->rtfClass = rtfText;
info->rtfMajor = ' ';
}
else if (info->rtfMinor == rtfPar && tableDef)
tableDef->numCellsInserted = 0;
}
break;
}
}
static BOOL ME_RTFInsertOleObject(RTF_Info *info, HENHMETAFILE hemf, HBITMAP hbmp,
const SIZEL* sz)
{
LPOLEOBJECT lpObject = NULL;
LPSTORAGE lpStorage = NULL;
LPOLECLIENTSITE lpClientSite = NULL;
LPDATAOBJECT lpDataObject = NULL;
LPOLECACHE lpOleCache = NULL;
STGMEDIUM stgm;
FORMATETC fm;
CLSID clsid;
BOOL ret = FALSE;
DWORD conn;
if (hemf)
{
stgm.tymed = TYMED_ENHMF;
stgm.u.hEnhMetaFile = hemf;
fm.cfFormat = CF_ENHMETAFILE;
}
else if (hbmp)
{
stgm.tymed = TYMED_GDI;
stgm.u.hBitmap = hbmp;
fm.cfFormat = CF_BITMAP;
}
stgm.pUnkForRelease = NULL;
fm.ptd = NULL;
fm.dwAspect = DVASPECT_CONTENT;
fm.lindex = -1;
fm.tymed = stgm.tymed;
if (!info->lpRichEditOle)
{
CreateIRichEditOle(info->editor, (VOID**)&info->lpRichEditOle);
}
if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
#if 0
/* FIXME: enable it when rich-edit properly implements this method */
IRichEditOle_GetClientSite(info->lpRichEditOle, &lpClientSite) == S_OK &&
IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
#endif
IOleObject_GetUserClassID(lpObject, &clsid) == S_OK &&
IOleObject_QueryInterface(lpObject, &IID_IOleCache, (void**)&lpOleCache) == S_OK &&
IOleCache_Cache(lpOleCache, &fm, 0, &conn) == S_OK &&
IOleObject_QueryInterface(lpObject, &IID_IDataObject, (void**)&lpDataObject) == S_OK &&
IDataObject_SetData(lpDataObject, &fm, &stgm, TRUE) == S_OK)
{
REOBJECT reobject;
reobject.cbStruct = sizeof(reobject);
reobject.cp = REO_CP_SELECTION;
reobject.clsid = clsid;
reobject.poleobj = lpObject;
reobject.pstg = lpStorage;
reobject.polesite = lpClientSite;
/* convert from twips to .01 mm */
reobject.sizel.cx = MulDiv(sz->cx, 254, 144);
reobject.sizel.cy = MulDiv(sz->cy, 254, 144);
reobject.dvaspect = DVASPECT_CONTENT;
reobject.dwFlags = 0; /* FIXME */
reobject.dwUser = 0;
/* FIXME: could be simpler */
ret = IRichEditOle_InsertObject(info->lpRichEditOle, &reobject) == S_OK;
}
if (lpObject) IOleObject_Release(lpObject);
if (lpClientSite) IOleClientSite_Release(lpClientSite);
if (lpStorage) IStorage_Release(lpStorage);
if (lpDataObject) IDataObject_Release(lpDataObject);
if (lpOleCache) IOleCache_Release(lpOleCache);
return ret;
}
static void ME_RTFReadPictGroup(RTF_Info *info)
{
SIZEL sz;
BYTE* buffer = NULL;
unsigned bufsz, bufidx;
BOOL flip;
BYTE val;
METAFILEPICT mfp;
HENHMETAFILE hemf;
HBITMAP hbmp;
enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
mfp.mm = MM_TEXT;
/* fetch picture type */
if (RTFCheckMM (info, rtfPictAttr, rtfWinMetafile))
{
mfp.mm = info->rtfParam;
gfx = gfx_metafile;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfDevIndBitmap))
{
if (info->rtfParam != 0) FIXME("dibitmap should be 0 (%d)\n", info->rtfParam);
gfx = gfx_dib;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfEmfBlip))
{
gfx = gfx_enhmetafile;
}
else
{
FIXME("%d %d\n", info->rtfMajor, info->rtfMinor);
goto skip_group;
}
sz.cx = sz.cy = 0;
/* fetch picture attributes */
for (;;)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (info->rtfClass == rtfText)
break;
if (!RTFCheckCM (info, rtfControl, rtfPictAttr))
{
ERR("Expected picture attribute (%d %d)\n",
info->rtfClass, info->rtfMajor);
goto skip_group;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicWid))
{
if (gfx == gfx_metafile) mfp.xExt = info->rtfParam;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicHt))
{
if (gfx == gfx_metafile) mfp.yExt = info->rtfParam;
}
else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalWid))
sz.cx = info->rtfParam;
else if (RTFCheckMM (info, rtfPictAttr, rtfPicGoalHt))
sz.cy = info->rtfParam;
else
FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
}
/* fetch picture data */
bufsz = 1024;
bufidx = 0;
buffer = HeapAlloc(GetProcessHeap(), 0, bufsz);
val = info->rtfMajor;
for (flip = TRUE;; flip = !flip)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
{
HeapFree(GetProcessHeap(), 0, buffer);
return; /* Warn ?? */
}
if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
break;
if (info->rtfClass != rtfText) goto skip_group;
if (flip)
{
if (bufidx >= bufsz &&
!(buffer = HeapReAlloc(GetProcessHeap(), 0, buffer, bufsz += 1024)))
goto skip_group;
buffer[bufidx++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
}
else
val = info->rtfMajor;
}
if (flip) FIXME("wrong hex string\n");
switch (gfx)
{
case gfx_enhmetafile:
if ((hemf = SetEnhMetaFileBits(bufidx, buffer)))
ME_RTFInsertOleObject(info, hemf, NULL, &sz);
break;
case gfx_metafile:
if ((hemf = SetWinMetaFileBits(bufidx, buffer, NULL, &mfp)))
ME_RTFInsertOleObject(info, hemf, NULL, &sz);
break;
case gfx_dib:
{
BITMAPINFO* bi = (BITMAPINFO*)buffer;
HDC hdc = GetDC(0);
unsigned nc = bi->bmiHeader.biClrUsed;
/* not quite right, especially for bitfields type of compression */
if (!nc && bi->bmiHeader.biBitCount <= 8)
nc = 1 << bi->bmiHeader.biBitCount;
if ((hbmp = CreateDIBitmap(hdc, &bi->bmiHeader,
CBM_INIT, (char*)(bi + 1) + nc * sizeof(RGBQUAD),
bi, DIB_RGB_COLORS)))
ME_RTFInsertOleObject(info, NULL, hbmp, &sz);
ReleaseDC(0, hdc);
}
break;
default:
break;
}
HeapFree(GetProcessHeap(), 0, buffer);
RTFRouteToken (info); /* feed "}" back to router */
return;
skip_group:
HeapFree(GetProcessHeap(), 0, buffer);
RTFSkipGroup(info);
RTFRouteToken(info); /* feed "}" back to router */
}
/* for now, lookup the \result part and use it, whatever the object */
static void ME_RTFReadObjectGroup(RTF_Info *info)
{
for (;;)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (RTFCheckCM(info, rtfGroup, rtfEndGroup))
break;
if (RTFCheckCM(info, rtfGroup, rtfBeginGroup))
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF)
return;
if (RTFCheckCMM(info, rtfControl, rtfDestination, rtfObjResult))
{
int level = 1;
while (RTFGetToken (info) != rtfEOF)
{
if (info->rtfClass == rtfGroup)
{
if (info->rtfMajor == rtfBeginGroup) level++;
else if (info->rtfMajor == rtfEndGroup && --level < 0) break;
}
RTFRouteToken(info);
}
}
else RTFSkipGroup(info);
continue;
}
if (!RTFCheckCM (info, rtfControl, rtfObjAttr))
{
FIXME("Non supported attribute: %d %d %d\n", info->rtfClass, info->rtfMajor, info->rtfMinor);
return;
}
}
RTFRouteToken(info); /* feed "}" back to router */
}
static void ME_RTFReadHook(RTF_Info *info)
{
switch(info->rtfClass)
{
case rtfGroup:
switch(info->rtfMajor)
{
case rtfBeginGroup:
if (info->stackTop < maxStack) {
info->stack[info->stackTop].style = info->style;
ME_AddRefStyle(info->style);
info->stack[info->stackTop].codePage = info->codePage;
info->stack[info->stackTop].unicodeLength = info->unicodeLength;
}
info->stackTop++;
info->styleChanged = FALSE;
break;
case rtfEndGroup:
{
RTFFlushOutputBuffer(info);
info->stackTop--;
if (info->stackTop <= 0)
info->rtfClass = rtfEOF;
if (info->stackTop < 0)
return;
ME_ReleaseStyle(info->style);
info->style = info->stack[info->stackTop].style;
info->codePage = info->stack[info->stackTop].codePage;
info->unicodeLength = info->stack[info->stackTop].unicodeLength;
break;
}
}
break;
}
}
void
ME_StreamInFill(ME_InStream *stream)
{
stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
(BYTE *)stream->buffer,
sizeof(stream->buffer),
(LONG *)&stream->dwSize);
stream->dwUsed = 0;
}
static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream, BOOL stripLastCR)
{
RTF_Info parser;
ME_Style *style;
int from, to, nUndoMode;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
BOOL invalidRTF = FALSE;
ME_Cursor *selStart, *selEnd;
TRACE("stream==%p editor==%p format==0x%X\n", stream, editor, format);
editor->nEventMask = 0;
ME_GetSelectionOfs(editor, &from, &to);
if (format & SFF_SELECTION && editor->mode & TM_RICHTEXT)
{
ME_GetSelection(editor, &selStart, &selEnd);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, selStart, to - from, FALSE);
/* Don't insert text at the end of the table row */
if (!editor->bEmulateVersion10) { /* v4.1 */
ME_DisplayItem *para = editor->pCursors->pPara;
if (para->member.para.nFlags & MEPF_ROWEND)
{
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
}
if (para->member.para.nFlags & MEPF_ROWSTART)
{
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
}
editor->pCursors[1] = editor->pCursors[0];
} else { /* v1.0 - 3.0 */
if (editor->pCursors[0].pRun->member.run.nFlags & MERF_ENDPARA &&
ME_IsInTable(editor->pCursors[0].pRun))
return 0;
}
} else {
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
ME_SetSelection(editor, 0, 0);
ME_InternalDeleteText(editor, &editor->pCursors[1],
ME_GetTextLength(editor), FALSE);
from = to = 0;
ME_ClearTempStyle(editor);
ME_SetDefaultParaFormat(editor->pCursors[0].pPara->member.para.pFmt);
}
/* Back up undo mode to a local variable */
nUndoMode = editor->nUndoMode;
/* Only create an undo if SFF_SELECTION is set */
if (!(format & SFF_SELECTION))
editor->nUndoMode = umIgnore;
inStream.editstream = stream;
inStream.editstream->dwError = 0;
inStream.dwSize = 0;
inStream.dwUsed = 0;
if (format & SF_RTF)
{
/* Check if it's really RTF, and if it is not, use plain text */
ME_StreamInFill(&inStream);
if (!inStream.editstream->dwError)
{
if ((!editor->bEmulateVersion10 && strncmp(inStream.buffer, "{\\rtf", 5) && strncmp(inStream.buffer, "{\\urtf", 6))
|| (editor->bEmulateVersion10 && *inStream.buffer != '{'))
{
invalidRTF = TRUE;
inStream.editstream->dwError = -16;
}
}
}
if (!invalidRTF && !inStream.editstream->dwError)
{
if (format & SF_RTF) {
/* setup the RTF parser */
memset(&parser, 0, sizeof parser);
RTFSetEditStream(&parser, &inStream);
parser.rtfFormat = format&(SF_TEXT|SF_RTF);
parser.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
if (!parser.editor->bEmulateVersion10) /* v4.1 */
{
RTFSetDestinationCallback(&parser, rtfNoNestTables, RTFSkipGroup);
RTFSetDestinationCallback(&parser, rtfNestTableProps, RTFReadGroup);
}
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (parser.tableDef && parser.tableDef->tableRowStart &&
(parser.nestingLevel > 0 || parser.canInheritInTbl))
{
/* Delete any incomplete table row at the end of the rich text. */
int nOfs, nChars;
ME_DisplayItem *pCell;
ME_DisplayItem *para;
parser.rtfMinor = rtfRow;
/* Complete the table row before deleting it.
* By doing it this way we will have the current paragraph format set
* properly to reflect that is not in the complete table, and undo items
* will be added for this change to the current paragraph format. */
if (parser.nestingLevel > 0)
{
while (parser.nestingLevel > 1)
ME_RTFSpecialCharHook(&parser); /* Decrements nestingLevel */
para = parser.tableDef->tableRowStart;
ME_RTFSpecialCharHook(&parser);
} else {
para = parser.tableDef->tableRowStart;
ME_RTFSpecialCharHook(&parser);
assert(para->member.para.nFlags & MEPF_ROWEND);
para = para->member.para.next_para;
}
pCell = para->member.para.pCell;
editor->pCursors[1].pPara = para;
editor->pCursors[1].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1].nOffset = 0;
nOfs = ME_GetCursorOfs(&editor->pCursors[1]);
nChars = ME_GetCursorOfs(&editor->pCursors[0]) - nOfs;
ME_InternalDeleteText(editor, &editor->pCursors[1], nChars, TRUE);
if (parser.tableDef)
parser.tableDef->tableRowStart = NULL;
}
}
ME_CheckTablesForCorruption(editor);
RTFDestroy(&parser);
if (parser.lpRichEditOle)
IRichEditOle_Release(parser.lpRichEditOle);
if (parser.stackTop > 0)
{
while (--parser.stackTop >= 0)
{
ME_ReleaseStyle(parser.style);
parser.style = parser.stack[parser.stackTop].style;
}
if (!inStream.editstream->dwError)
inStream.editstream->dwError = HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
/* Remove last line break, as mandated by tests. This is not affected by
CR/LF counters, since RTF streaming presents only \para tokens, which
are converted according to the standard rules: \r for 2.0, \r\n for 1.0
*/
if (stripLastCR) {
int newto;
ME_GetSelection(editor, &selStart, &selEnd);
newto = ME_GetCursorOfs(selEnd);
if (newto > to + (editor->bEmulateVersion10 ? 1 : 0)) {
WCHAR lastchar[3] = {'\0', '\0'};
int linebreakSize = editor->bEmulateVersion10 ? 2 : 1;
ME_Cursor linebreakCursor = *selEnd;
ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize);
ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, 0);
if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
}
}
}
style = parser.style;
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, &inStream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
ME_SetSelection(editor, 0, 0);
}
/* Restore saved undo mode */
editor->nUndoMode = nUndoMode;
/* even if we didn't add an undo, we need to commit anything on the stack */
ME_CommitUndo(editor);
/* If SFF_SELECTION isn't set, delete any undos from before we started too */
if (!(format & SFF_SELECTION))
ME_EmptyUndoStack(editor);
ME_ReleaseStyle(style);
editor->nEventMask = nEventMask;
ME_UpdateRepaint(editor);
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_MoveCaret(editor);
ITextHost_TxShowCaret(editor->texthost, TRUE);
ME_SendSelChange(editor);
ME_SendRequestResize(editor, FALSE);
return 0;
}
typedef struct tagME_RTFStringStreamStruct
{
char *string;
int pos;
int length;
} ME_RTFStringStreamStruct;
static DWORD CALLBACK ME_ReadFromRTFString(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_RTFStringStreamStruct *pStruct = (ME_RTFStringStreamStruct *)dwCookie;
int count;
count = min(cb, pStruct->length - pStruct->pos);
memmove(lpBuff, pStruct->string + pStruct->pos, count);
pStruct->pos += count;
*pcb = count;
return 0;
}
static void
ME_StreamInRTFString(ME_TextEditor *editor, BOOL selection, char *string)
{
EDITSTREAM es;
ME_RTFStringStreamStruct data;
data.string = string;
data.length = strlen(string);
data.pos = 0;
es.dwCookie = (DWORD_PTR)&data;
es.pfnCallback = ME_ReadFromRTFString;
ME_StreamIn(editor, SF_RTF | (selection ? SFF_SELECTION : 0), &es, FALSE);
}
static int
ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCHAR *text, CHARRANGE *chrgText)
{
const int nLen = lstrlenW(text);
const int nTextLen = ME_GetTextLength(editor);
int nMin, nMax;
ME_Cursor cursor;
WCHAR wLastChar = ' ';
TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
FIXME("Flags 0x%08x not implemented\n",
flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD));
nMin = chrg->cpMin;
if (chrg->cpMax == -1)
nMax = nTextLen;
else
nMax = chrg->cpMax > nTextLen ? nTextLen : chrg->cpMax;
/* In 1.0 emulation, if cpMax reaches end of text, add the FR_DOWN flag */
if (editor->bEmulateVersion10 && nMax == nTextLen)
{
flags |= FR_DOWN;
}
/* In 1.0 emulation, cpMin must always be no greater than cpMax */
if (editor->bEmulateVersion10 && nMax < nMin)
{
if (chrgText)
{
chrgText->cpMin = -1;
chrgText->cpMax = -1;
}
return -1;
}
/* when searching up, if cpMin < cpMax, then instead of searching
* on [cpMin,cpMax], we search on [0,cpMin], otherwise, search on
* [cpMax, cpMin]. The exception is when cpMax is -1, in which
* case, it is always bigger than cpMin.
*/
if (!editor->bEmulateVersion10 && !(flags & FR_DOWN))
{
int nSwap = nMax;
nMax = nMin > nTextLen ? nTextLen : nMin;
if (nMin < nSwap || chrg->cpMax == -1)
nMin = 0;
else
nMin = nSwap;
}
if (!nLen || nMin < 0 || nMax < 0 || nMax < nMin)
{
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
if (flags & FR_DOWN) /* Forward search */
{
/* If possible, find the character before where the search starts */
if ((flags & FR_WHOLEWORD) && nMin)
{
ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, 1);
} else {
ME_CursorFromCharOfs(editor, nMin, &cursor);
}
while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
{
ME_DisplayItem *pCurItem = cursor.pRun;
int nCurStart = cursor.nOffset;
int nMatched = 0;
while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
{
if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_DisplayItem *pNextItem = pCurItem;
int nNextStart = nCurStart;
WCHAR wNextChar;
/* Check to see if next character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
{
pNextItem = ME_FindItemFwd(pCurItem, diRun);
nNextStart = -nMatched;
}
if (pNextItem)
wNextChar = pNextItem->member.run.strText->szData[nNextStart + nMatched];
else
wNextChar = ' ';
if (isalnumW(wNextChar))
break;
}
cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
if (chrgText)
{
chrgText->cpMin = cursor.nOffset;
chrgText->cpMax = cursor.nOffset + nLen;
}
TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
return cursor.nOffset;
}
if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
{
pCurItem = ME_FindItemFwd(pCurItem, diRun);
nCurStart = -nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurStart + nMatched];
else
wLastChar = ' ';
cursor.nOffset++;
if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
{
ME_NextRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = 0;
}
}
}
else /* Backward search */
{
/* If possible, find the character after where the search ends */
if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
{
ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, -1);
} else {
ME_CursorFromCharOfs(editor, nMax, &cursor);
}
while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
{
ME_DisplayItem *pCurItem = cursor.pRun;
ME_DisplayItem *pCurPara = cursor.pPara;
int nCurEnd = cursor.nOffset;
int nMatched = 0;
if (nCurEnd == 0)
{
ME_PrevRun(&pCurPara, &pCurItem);
nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
}
while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
{
if ((flags & FR_WHOLEWORD) && isalnumW(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_DisplayItem *pPrevItem = pCurItem;
int nPrevEnd = nCurEnd;
WCHAR wPrevChar;
int nStart;
/* Check to see if previous character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nPrevEnd - nMatched == 0)
{
pPrevItem = ME_FindItemBack(pCurItem, diRun);
if (pPrevItem)
nPrevEnd = pPrevItem->member.run.strText->nLen + nMatched;
}
if (pPrevItem)
wPrevChar = pPrevItem->member.run.strText->szData[nPrevEnd - nMatched - 1];
else
wPrevChar = ' ';
if (isalnumW(wPrevChar))
break;
}
nStart = pCurPara->member.para.nCharOfs
+ pCurItem->member.run.nCharOfs + nCurEnd - nMatched;
if (chrgText)
{
chrgText->cpMin = nStart;
chrgText->cpMax = nStart + nLen;
}
TRACE("found at %d-%d\n", nStart, nStart + nLen);
return nStart;
}
if (nCurEnd - nMatched == 0)
{
ME_PrevRun(&pCurPara, &pCurItem);
/* Don't care about pCurItem becoming NULL here; it's already taken
* care of in the exterior loop condition */
nCurEnd = pCurItem->member.run.strText->nLen + nMatched;
}
}
if (pCurItem)
wLastChar = pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1];
else
wLastChar = ' ';
cursor.nOffset--;
if (cursor.nOffset < 0)
{
ME_PrevRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = cursor.pRun->member.run.strText->nLen;
}
}
}
TRACE("not found\n");
if (chrgText)
chrgText->cpMin = chrgText->cpMax = -1;
return -1;
}
static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
{
int nChars;
ME_Cursor start;
if (!ex->cb || !pText) return 0;
if (ex->flags & ~(GT_SELECTION | GT_USECRLF))
FIXME("GETTEXTEX flags 0x%08x not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
if (ex->flags & GT_SELECTION)
{
int from, to;
int nStartCur = ME_GetSelectionOfs(editor, &from, &to);
start = editor->pCursors[nStartCur];
nChars = to - from;
}
else
{
ME_SetCursorToStart(editor, &start);
nChars = INT_MAX;
}
if (ex->codepage == 1200)
{
return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
&start, nChars, ex->flags & GT_USECRLF);
}
else
{
/* potentially each char may be a CR, why calculate the exact value with O(N) when
we can just take a bigger buffer? :)
The above assumption still holds with CR/LF counters, since CR->CRLF expansion
occurs only in richedit 2.0 mode, in which line breaks have only one CR
*/
int crlfmul = (ex->flags & GT_USECRLF) ? 2 : 1;
DWORD buflen;
LPWSTR buffer;
LRESULT rc;
buflen = min(crlfmul * nChars, ex->cb - 1);
buffer = heap_alloc((buflen + 1) * sizeof(WCHAR));
nChars = ME_GetTextW(editor, buffer, buflen, &start, nChars, ex->flags & GT_USECRLF);
rc = WideCharToMultiByte(ex->codepage, 0, buffer, nChars + 1,
(LPSTR)pText, ex->cb, ex->lpDefaultChar, ex->lpUsedDefChar);
if (rc) rc--; /* do not count 0 terminator */
heap_free(buffer);
return rc;
}
}
static int ME_GetTextRange(ME_TextEditor *editor, WCHAR *strText,
const ME_Cursor *start, int nLen, BOOL unicode)
{
if (!strText) return 0;
if (unicode) {
return ME_GetTextW(editor, strText, INT_MAX, start, nLen, 0);
} else {
int nChars;
WCHAR *p = ALLOC_N_OBJ(WCHAR, nLen+1);
if (!p) return 0;
nChars = ME_GetTextW(editor, p, nLen, start, nLen, 0);
WideCharToMultiByte(CP_ACP, 0, p, nChars+1, (char *)strText,
nLen+1, NULL, NULL);
FREE_OBJ(p);
return nChars;
}
}
typedef struct tagME_GlobalDestStruct
{
HGLOBAL hData;
int nLength;
} ME_GlobalDestStruct;
static DWORD CALLBACK ME_ReadFromHGLOBALUnicode(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int i;
WORD *pSrc, *pDest;
cb = cb >> 1;
pDest = (WORD *)lpBuff;
pSrc = GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = 2*i;
GlobalUnlock(pData->hData);
return 0;
}
static DWORD CALLBACK ME_ReadFromHGLOBALRTF(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int i;
BYTE *pSrc, *pDest;
pDest = lpBuff;
pSrc = GlobalLock(pData->hData);
for (i = 0; i<cb && pSrc[pData->nLength+i]; i++) {
pDest[i] = pSrc[pData->nLength+i];
}
pData->nLength += i;
*pcb = i;
GlobalUnlock(pData->hData);
return 0;
}
static BOOL ME_Paste(ME_TextEditor *editor)
{
DWORD dwFormat = 0;
EDITSTREAM es;
ME_GlobalDestStruct gds;
UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
UINT cf = 0;
if (IsClipboardFormatAvailable(nRTFFormat))
cf = nRTFFormat, dwFormat = SF_RTF;
else if (IsClipboardFormatAvailable(CF_UNICODETEXT))
cf = CF_UNICODETEXT, dwFormat = SF_TEXT|SF_UNICODE;
else
return FALSE;
if (!OpenClipboard(editor->hWnd))
return FALSE;
gds.hData = GetClipboardData(cf);
gds.nLength = 0;
es.dwCookie = (DWORD_PTR)&gds;
es.pfnCallback = dwFormat == SF_RTF ? ME_ReadFromHGLOBALRTF : ME_ReadFromHGLOBALUnicode;
ME_StreamIn(editor, dwFormat|SFF_SELECTION, &es, FALSE);
CloseClipboard();
return TRUE;
}
static BOOL ME_Copy(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
LPDATAOBJECT dataObj = NULL;
HRESULT hr = S_OK;
if (editor->cPasswordMask)
return FALSE; /* Copying or Cutting masked text isn't allowed */
if(editor->lpOleCallback)
{
CHARRANGE range;
range.cpMin = ME_GetCursorOfs(start);
range.cpMax = range.cpMin + nChars;
hr = IRichEditOleCallback_GetClipboardData(editor->lpOleCallback, &range, RECO_COPY, &dataObj);
}
if(FAILED(hr) || !dataObj)
hr = ME_GetDataObject(editor, start, nChars, &dataObj);
if(SUCCEEDED(hr)) {
hr = OleSetClipboard(dataObj);
IDataObject_Release(dataObj);
}
return SUCCEEDED(hr) != 0;
}
/* helper to send a msg filter notification */
static BOOL
ME_FilterEvent(ME_TextEditor *editor, UINT msg, WPARAM* wParam, LPARAM* lParam)
{
MSGFILTER msgf;
if (!editor->hWnd) return FALSE;
msgf.nmhdr.hwndFrom = editor->hWnd;
msgf.nmhdr.idFrom = GetWindowLongW(editor->hWnd, GWLP_ID);
msgf.nmhdr.code = EN_MSGFILTER;
msgf.msg = msg;
msgf.wParam = *wParam;
msgf.lParam = *lParam;
if (SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, msgf.nmhdr.idFrom, (LPARAM)&msgf))
return FALSE;
*wParam = msgf.wParam;
*lParam = msgf.lParam;
msgf.wParam = *wParam;
return TRUE;
}
static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
{
ME_DisplayItem *startPara, *endPara;
ME_DisplayItem *prev_para;
ME_Cursor *from, *to;
ME_Cursor start;
int nChars;
if (!editor->AutoURLDetect_bEnable) return;
ME_GetSelection(editor, &from, &to);
/* Find paragraph previous to the one that contains start cursor */
startPara = from->pPara;
prev_para = startPara->member.para.prev_para;
if (prev_para->type == diParagraph) startPara = prev_para;
/* Find paragraph that contains end cursor */
endPara = to->pPara->member.para.next_para;
start.pPara = startPara;
start.pRun = ME_FindItemFwd(startPara, diRun);
start.nOffset = 0;
nChars = endPara->member.para.nCharOfs - startPara->member.para.nCharOfs;
ME_UpdateLinkAttribute(editor, &start, nChars);
}
static BOOL
ME_KeyDown(ME_TextEditor *editor, WORD nKey)
{
BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
if (editor->bMouseCaptured)
return FALSE;
if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey != VK_MENU)
editor->nSelectionType = stPosition;
switch (nKey)
{
case VK_LEFT:
case VK_RIGHT:
case VK_HOME:
case VK_END:
editor->nUDArrowX = -1;
/* fall through */
case VK_UP:
case VK_DOWN:
case VK_PRIOR:
case VK_NEXT:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
ME_ArrowKey(editor, nKey, shift_is_down, ctrl_is_down);
return TRUE;
case VK_BACK:
case VK_DELETE:
editor->nUDArrowX = -1;
/* FIXME backspace and delete aren't the same, they act different wrt paragraph style of the merged paragraph */
if (editor->styleFlags & ES_READONLY)
return FALSE;
if (ME_IsSelection(editor))
{
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
}
else if (nKey == VK_DELETE)
{
/* Delete stops group typing.
* (See MSDN remarks on EM_STOPGROUPTYPING message) */
ME_DeleteTextAtCursor(editor, 1, 1);
ME_CommitUndo(editor);
}
else if (ME_ArrowKey(editor, VK_LEFT, FALSE, FALSE))
{
BOOL bDeletionSucceeded;
/* Backspace can be grouped for a single undo */
ME_ContinueCoalescingTransaction(editor);
bDeletionSucceeded = ME_DeleteTextAtCursor(editor, 1, 1);
if (!bDeletionSucceeded && !editor->bEmulateVersion10) { /* v4.1 */
/* Deletion was prevented so the cursor is moved back to where it was.
* (e.g. this happens when trying to delete cell boundaries)
*/
ME_ArrowKey(editor, VK_RIGHT, FALSE, FALSE);
}
ME_CommitCoalescingUndo(editor);
}
else
return TRUE;
ME_MoveCursorFromTableRowStartParagraph(editor);
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
ME_SendRequestResize(editor, FALSE);
return TRUE;
case VK_RETURN:
if (editor->styleFlags & ES_MULTILINE)
{
ME_Cursor cursor = editor->pCursors[0];
ME_DisplayItem *para = cursor.pPara;
int from, to;
const WCHAR endl = '\r';
ME_Style *style;
if (editor->styleFlags & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return TRUE;
}
ME_GetSelectionOfs(editor, &from, &to);
if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
if (!editor->bEmulateVersion10) { /* v4.1 */
if (para->member.para.nFlags & MEPF_ROWEND) {
/* Add a new table row after this row. */
para = ME_AppendTableRow(editor, para);
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitUndo(editor);
ME_CheckTablesForCorruption(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
else if (para == editor->pCursors[1].pPara &&
cursor.nOffset + cursor.pRun->member.run.nCharOfs == 0 &&
para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART &&
!para->member.para.prev_para->member.para.nCharOfs)
{
/* Insert a newline before the table. */
para = para->member.para.prev_para;
para->member.para.nFlags &= ~MEPF_ROWSTART;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor(editor, 0, &endl, 1,
editor->pCursors[0].pRun->member.run.style);
para = editor->pBuffer->pFirst->member.para.next_para;
ME_SetDefaultParaFormat(para->member.para.pFmt);
para->member.para.nFlags = MEPF_REWRAP;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[1] = editor->pCursors[0];
para->member.para.next_para->member.para.nFlags |= MEPF_ROWSTART;
ME_CommitCoalescingUndo(editor);
ME_CheckTablesForCorruption(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
} else { /* v1.0 - 3.0 */
ME_DisplayItem *para = cursor.pPara;
if (ME_IsInTable(para))
{
if (cursor.pRun->member.run.nFlags & MERF_ENDPARA)
{
if (from == to) {
ME_ContinueCoalescingTransaction(editor);
para = ME_AppendTableRow(editor, para);
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
} else {
ME_ContinueCoalescingTransaction(editor);
if (cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
!ME_IsInTable(para->member.para.prev_para))
{
/* Insert newline before table */
cursor.pRun = ME_FindItemBack(para, diRun);
if (cursor.pRun) {
editor->pCursors[0].pRun = cursor.pRun;
editor->pCursors[0].pPara = para->member.para.prev_para;
}
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor(editor, 0, &endl, 1,
editor->pCursors[0].pRun->member.run.style);
} else {
editor->pCursors[1] = editor->pCursors[0];
para = ME_AppendTableRow(editor, para);
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor);
return TRUE;
}
}
}
style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_ContinueCoalescingTransaction(editor);
if (shift_is_down)
ME_InsertEndRowFromCursor(editor, 0);
else
ME_InsertTextFromCursor(editor, 0, &endl, 1, style);
ME_ReleaseStyle(style);
ME_CommitCoalescingUndo(editor);
SetCursor(NULL);
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
}
return TRUE;
}
break;
case 'A':
if (ctrl_is_down)
{
ME_SetSelection(editor, 0, -1);
return TRUE;
}
break;
case 'V':
if (ctrl_is_down)
return ME_Paste(editor);
break;
case 'C':
case 'X':
if (ctrl_is_down)
{
BOOL result;
int nOfs, nChars;
int nStartCur = ME_GetSelectionOfs(editor, &nOfs, &nChars);
ME_Cursor *selStart = &editor->pCursors[nStartCur];
nChars -= nOfs;
result = ME_Copy(editor, selStart, nChars);
if (result && nKey == 'X')
{
ME_InternalDeleteText(editor, selStart, nChars, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return result;
}
break;
case 'Z':
if (ctrl_is_down)
{
ME_Undo(editor);
return TRUE;
}
break;
case 'Y':
if (ctrl_is_down)
{
ME_Redo(editor);
return TRUE;
}
break;
default:
if (nKey != VK_SHIFT && nKey != VK_CONTROL && nKey && nKey != VK_MENU)
editor->nUDArrowX = -1;
if (ctrl_is_down)
{
if (nKey == 'W')
{
CHARFORMAT2W chf;
char buf[2048];
chf.cbSize = sizeof(chf);
ME_GetSelectionCharFormat(editor, &chf);
ME_DumpStyleToBuf(&chf, buf);
MessageBoxA(NULL, buf, "Style dump", MB_OK);
}
if (nKey == 'Q')
{
ME_CheckCharOffsets(editor);
}
}
}
return FALSE;
}
static LRESULT ME_Char(ME_TextEditor *editor, WPARAM charCode,
LPARAM flags, BOOL unicode)
{
WCHAR wstr;
if (editor->bMouseCaptured)
return 0;
if (unicode)
wstr = (WCHAR)charCode;
else
{
CHAR charA = charCode;
MultiByteToWideChar(CP_ACP, 0, &charA, 1, &wstr, 1);
}
if (editor->styleFlags & ES_READONLY) {
MessageBeep(MB_ICONERROR);
return 0; /* FIXME really 0 ? */
}
if ((unsigned)wstr >= ' ' || wstr == '\t')
{
ME_Cursor cursor = editor->pCursors[0];
ME_DisplayItem *para = cursor.pPara;
int from, to;
BOOL ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
ME_GetSelectionOfs(editor, &from, &to);
if (wstr == '\t' &&
/* v4.1 allows tabs to be inserted with ctrl key down */
!(ctrl_is_down && !editor->bEmulateVersion10))
{
ME_DisplayItem *para;
BOOL bSelectedRow = FALSE;
para = cursor.pPara;
if (ME_IsSelection(editor) &&
cursor.pRun->member.run.nCharOfs + cursor.nOffset == 0 &&
to == ME_GetCursorOfs(&editor->pCursors[0]) &&
para->member.para.prev_para->type == diParagraph)
{
para = para->member.para.prev_para;
bSelectedRow = TRUE;
}
if (ME_IsInTable(para))
{
ME_TabPressedInTable(editor, bSelectedRow);
ME_CommitUndo(editor);
return 0;
}
} else if (!editor->bEmulateVersion10) { /* v4.1 */
if (para->member.para.nFlags & MEPF_ROWEND) {
if (from == to) {
para = para->member.para.next_para;
if (para->member.para.nFlags & MEPF_ROWSTART)
para = para->member.para.next_para;
editor->pCursors[0].pPara = para;
editor->pCursors[0].pRun = ME_FindItemFwd(para, diRun);
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
}
} else { /* v1.0 - 3.0 */
if (ME_IsInTable(cursor.pRun) &&
cursor.pRun->member.run.nFlags & MERF_ENDPARA &&
from == to)
{
/* Text should not be inserted at the end of the table. */
MessageBeep(-1);
return 0;
}
}
/* FIXME maybe it would make sense to call EM_REPLACESEL instead ? */
/* WM_CHAR is restricted to nTextLimit */
if(editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
ME_Style *style = ME_GetInsertStyle(editor, 0);
ME_SaveTempStyle(editor);
ME_ContinueCoalescingTransaction(editor);
ME_InsertTextFromCursor(editor, 0, &wstr, 1, style);
ME_ReleaseStyle(style);
ME_CommitCoalescingUndo(editor);
ITextHost_TxSetCursor(editor->texthost, NULL, FALSE);
}
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
/* Process the message and calculate the new click count.
*
* returns: The click count if it is mouse down event, else returns 0. */
static int ME_CalculateClickCount(ME_TextEditor *editor, UINT msg, WPARAM wParam,
LPARAM lParam)
{
static int clickNum = 0;
if (msg < WM_MOUSEFIRST || msg > WM_MOUSELAST)
return 0;
if ((msg == WM_LBUTTONDBLCLK) ||
(msg == WM_RBUTTONDBLCLK) ||
(msg == WM_MBUTTONDBLCLK) ||
(msg == WM_XBUTTONDBLCLK))
{
msg -= (WM_LBUTTONDBLCLK - WM_LBUTTONDOWN);
}
if ((msg == WM_LBUTTONDOWN) ||
(msg == WM_RBUTTONDOWN) ||
(msg == WM_MBUTTONDOWN) ||
(msg == WM_XBUTTONDOWN))
{
static MSG prevClickMsg;
MSG clickMsg;
/* Compare the editor instead of the hwnd so that the this
* can still be done for windowless richedit controls. */
clickMsg.hwnd = (HWND)editor;
clickMsg.message = msg;
clickMsg.wParam = wParam;
clickMsg.lParam = lParam;
clickMsg.time = GetMessageTime();
clickMsg.pt.x = (short)LOWORD(lParam);
clickMsg.pt.y = (short)HIWORD(lParam);
if ((clickNum != 0) &&
(clickMsg.message == prevClickMsg.message) &&
(clickMsg.hwnd == prevClickMsg.hwnd) &&
(clickMsg.wParam == prevClickMsg.wParam) &&
(clickMsg.time - prevClickMsg.time < GetDoubleClickTime()) &&
(abs(clickMsg.pt.x - prevClickMsg.pt.x) < GetSystemMetrics(SM_CXDOUBLECLK)/2) &&
(abs(clickMsg.pt.y - prevClickMsg.pt.y) < GetSystemMetrics(SM_CYDOUBLECLK)/2))
{
clickNum++;
} else {
clickNum = 1;
}
prevClickMsg = clickMsg;
} else {
return 0;
}
return clickNum;
}
static BOOL ME_SetCursor(ME_TextEditor *editor)
{
ME_Cursor cursor;
POINT pt;
BOOL isExact;
SCROLLBARINFO sbi;
DWORD messagePos = GetMessagePos();
pt.x = (short)LOWORD(messagePos);
pt.y = (short)HIWORD(messagePos);
if (editor->hWnd)
{
sbi.cbSize = sizeof(sbi);
GetScrollBarInfo(editor->hWnd, OBJID_HSCROLL, &sbi);
if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
PtInRect(&sbi.rcScrollBar, pt))
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
return TRUE;
}
sbi.cbSize = sizeof(sbi);
GetScrollBarInfo(editor->hWnd, OBJID_VSCROLL, &sbi);
if (!(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)) &&
PtInRect(&sbi.rcScrollBar, pt))
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
return TRUE;
}
}
ITextHost_TxScreenToClient(editor->texthost, &pt);
if (editor->nSelectionType == stLine && editor->bMouseCaptured) {
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
if (!editor->bEmulateVersion10 /* v4.1 */ &&
pt.y < editor->rcFormat.top &&
pt.x < editor->rcFormat.left)
{
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
if (pt.y < editor->rcFormat.top || pt.y > editor->rcFormat.bottom)
{
if (editor->bEmulateVersion10) /* v1.0 - 3.0 */
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW), FALSE);
else /* v4.1 */
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
return TRUE;
}
if (pt.x < editor->rcFormat.left)
{
ITextHost_TxSetCursor(editor->texthost, hLeft, FALSE);
return TRUE;
}
ME_CharFromPos(editor, pt.x, pt.y, &cursor, &isExact);
if (isExact)
{
ME_Run *run;
run = &cursor.pRun->member.run;
if (run->style->fmt.dwMask & CFM_LINK &&
run->style->fmt.dwEffects & CFE_LINK)
{
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_HAND),
FALSE);
return TRUE;
}
if (ME_IsSelection(editor))
{
int selStart, selEnd;
int offset = ME_GetCursorOfs(&cursor);
ME_GetSelectionOfs(editor, &selStart, &selEnd);
if (selStart <= offset && selEnd >= offset) {
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_ARROW),
FALSE);
return TRUE;
}
}
}
ITextHost_TxSetCursor(editor->texthost,
LoadCursorW(NULL, (WCHAR*)IDC_IBEAM), TRUE);
return TRUE;
}
static void ME_SetDefaultFormatRect(ME_TextEditor *editor)
{
ITextHost_TxGetClientRect(editor->texthost, &editor->rcFormat);
editor->rcFormat.top += editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
editor->rcFormat.left += 1 + editor->selofs;
editor->rcFormat.right -= 1;
}
static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
{
CHARRANGE selrange;
HMENU menu;
int seltype = 0;
if(!editor->lpOleCallback || !editor->hWnd)
return FALSE;
ME_GetSelectionOfs(editor, &selrange.cpMin, &selrange.cpMax);
if(selrange.cpMin == selrange.cpMax)
seltype |= SEL_EMPTY;
else
{
/* FIXME: Handle objects */
seltype |= SEL_TEXT;
if(selrange.cpMax-selrange.cpMin > 1)
seltype |= SEL_MULTICHAR;
}
if(SUCCEEDED(IRichEditOleCallback_GetContextMenu(editor->lpOleCallback, seltype, NULL, &selrange, &menu)))
{
TrackPopupMenu(menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, GetParent(editor->hWnd), NULL);
DestroyMenu(menu);
}
return TRUE;
}
ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
{
ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
int i;
DWORD props;
LONG selbarwidth;
ed->hWnd = NULL;
ed->texthost = texthost;
ed->bEmulateVersion10 = bEmulateVersion10;
ITextHost_TxGetPropertyBits(texthost,
(TXTBIT_RICHTEXT|TXTBIT_MULTILINE|
TXTBIT_READONLY|TXTBIT_USEPASSWORD|
TXTBIT_HIDESELECTION|TXTBIT_SAVESELECTION|
TXTBIT_AUTOWORDSEL|TXTBIT_VERTICAL|
TXTBIT_WORDWRAP|TXTBIT_DISABLEDRAG),
&props);
ITextHost_TxGetScrollBars(texthost, &ed->styleFlags);
ed->styleFlags &= (WS_VSCROLL|WS_HSCROLL|ES_AUTOVSCROLL|
ES_AUTOHSCROLL|ES_DISABLENOSCROLL);
ed->pBuffer = ME_MakeText();
ed->nZoomNumerator = ed->nZoomDenominator = 0;
ed->nAvailWidth = 0; /* wrap to client area */
ME_MakeFirstParagraph(ed);
/* The four cursors are for:
* 0 - The position where the caret is shown
* 1 - The anchored end of the selection (for normal selection)
* 2 & 3 - The anchored start and end respectively for word, line,
* or paragraph selection.
*/
ed->nCursors = 4;
ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
ME_SetCursorToStart(ed, &ed->pCursors[0]);
ed->pCursors[1] = ed->pCursors[0];
ed->pCursors[2] = ed->pCursors[0];
ed->pCursors[3] = ed->pCursors[1];
ed->nLastTotalLength = ed->nTotalLength = 0;
ed->nLastTotalWidth = ed->nTotalWidth = 0;
ed->nUDArrowX = -1;
ed->nSequence = 0;
ed->rgbBackColor = -1;
ed->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
ed->bCaretAtEnd = FALSE;
ed->nEventMask = 0;
ed->nModifyStep = 0;
ed->nTextLimit = TEXT_LIMIT_DEFAULT;
ed->pUndoStack = ed->pRedoStack = ed->pUndoStackBottom = NULL;
ed->nUndoStackSize = 0;
ed->nUndoLimit = STACK_SIZE_DEFAULT;
ed->nUndoMode = umAddToUndo;
ed->nParagraphs = 1;
ed->nLastSelStart = ed->nLastSelEnd = 0;
ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
ed->bHideSelection = FALSE;
ed->pfnWordBreak = NULL;
ed->lpOleCallback = NULL;
ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
ed->mode |= (props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
ed->AutoURLDetect_bEnable = FALSE;
ed->bHaveFocus = FALSE;
ed->bMouseCaptured = FALSE;
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
ed->pFontCache[i].nRefs = 0;
ed->pFontCache[i].nAge = 0;
ed->pFontCache[i].hFont = NULL;
}
ME_CheckCharOffsets(ed);
ed->bDefaultFormatRect = TRUE;
ITextHost_TxGetSelectionBarWidth(ed->texthost, &selbarwidth);
if (selbarwidth) {
/* FIXME: Convert selbarwidth from HIMETRIC to pixels */
ed->selofs = SELECTIONBAR_WIDTH;
ed->styleFlags |= ES_SELECTIONBAR;
} else {
ed->selofs = 0;
}
ed->nSelectionType = stPosition;
ed->cPasswordMask = 0;
if (props & TXTBIT_USEPASSWORD)
ITextHost_TxGetPasswordChar(texthost, &ed->cPasswordMask);
if (props & TXTBIT_AUTOWORDSEL)
ed->styleFlags |= ECO_AUTOWORDSELECTION;
if (props & TXTBIT_MULTILINE) {
ed->styleFlags |= ES_MULTILINE;
ed->bWordWrap = (props & TXTBIT_WORDWRAP) != 0;
} else {
ed->bWordWrap = FALSE;
}
if (props & TXTBIT_READONLY)
ed->styleFlags |= ES_READONLY;
if (!(props & TXTBIT_HIDESELECTION))
ed->styleFlags |= ES_NOHIDESEL;
if (props & TXTBIT_SAVESELECTION)
ed->styleFlags |= ES_SAVESEL;
if (props & TXTBIT_VERTICAL)
ed->styleFlags |= ES_VERTICAL;
if (props & TXTBIT_DISABLEDRAG)
ed->styleFlags |= ES_NOOLEDRAGDROP;
ed->notified_cr.cpMin = ed->notified_cr.cpMax = 0;
/* Default scrollbar information */
ed->vert_si.cbSize = sizeof(SCROLLINFO);
ed->vert_si.nMin = 0;
ed->vert_si.nMax = 0;
ed->vert_si.nPage = 0;
ed->vert_si.nPos = 0;
ed->horz_si.cbSize = sizeof(SCROLLINFO);
ed->horz_si.nMin = 0;
ed->horz_si.nMax = 0;
ed->horz_si.nPage = 0;
ed->horz_si.nPos = 0;
OleInitialize(NULL);
return ed;
}
static void ME_DestroyEditor(ME_TextEditor *editor)
{
ME_DisplayItem *pFirst = editor->pBuffer->pFirst;
ME_DisplayItem *p = pFirst, *pNext = NULL;
int i;
ME_ClearTempStyle(editor);
ME_EmptyUndoStack(editor);
while(p) {
pNext = p->next;
ME_DestroyDisplayItem(p);
p = pNext;
}
ME_ReleaseStyle(editor->pBuffer->pDefaultStyle);
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
if (editor->pFontCache[i].hFont)
DeleteObject(editor->pFontCache[i].hFont);
}
if (editor->rgbBackColor != -1)
DeleteObject(editor->hbrBackground);
if(editor->lpOleCallback)
IUnknown_Release(editor->lpOleCallback);
IUnknown_Release(editor->texthost);
OleUninitialize();
FREE_OBJ(editor->pBuffer);
FREE_OBJ(editor->pCursors);
FREE_OBJ(editor);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("\n");
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
me_heap = HeapCreate (0, 0x10000, 0);
if (!ME_RegisterEditorClass(hinstDLL)) return FALSE;
hLeft = LoadCursorW(hinstDLL, MAKEINTRESOURCEW(OCR_REVERSE));
LookupInit();
break;
case DLL_PROCESS_DETACH:
UnregisterClassW(RICHEDIT_CLASS20W, 0);
UnregisterClassW(MSFTEDIT_CLASS, 0);
UnregisterClassA(RICHEDIT_CLASS20A, 0);
UnregisterClassA("RichEdit50A", 0);
if (ME_ListBoxRegistered)
UnregisterClassW(REListBox20W, 0);
if (ME_ComboBoxRegistered)
UnregisterClassW(REComboBox20W, 0);
LookupCleanup();
HeapDestroy (me_heap);
me_heap = NULL;
break;
}
return TRUE;
}
static const char * const edit_messages[] = {
"EM_GETSEL",
"EM_SETSEL",
"EM_GETRECT",
"EM_SETRECT",
"EM_SETRECTNP",
"EM_SCROLL",
"EM_LINESCROLL",
"EM_SCROLLCARET",
"EM_GETMODIFY",
"EM_SETMODIFY",
"EM_GETLINECOUNT",
"EM_LINEINDEX",
"EM_SETHANDLE",
"EM_GETHANDLE",
"EM_GETTHUMB",
"EM_UNKNOWN_BF",
"EM_UNKNOWN_C0",
"EM_LINELENGTH",
"EM_REPLACESEL",
"EM_UNKNOWN_C3",
"EM_GETLINE",
"EM_LIMITTEXT",
"EM_CANUNDO",
"EM_UNDO",
"EM_FMTLINES",
"EM_LINEFROMCHAR",
"EM_UNKNOWN_CA",
"EM_SETTABSTOPS",
"EM_SETPASSWORDCHAR",
"EM_EMPTYUNDOBUFFER",
"EM_GETFIRSTVISIBLELINE",
"EM_SETREADONLY",
"EM_SETWORDBREAKPROC",
"EM_GETWORDBREAKPROC",
"EM_GETPASSWORDCHAR",
"EM_SETMARGINS",
"EM_GETMARGINS",
"EM_GETLIMITTEXT",
"EM_POSFROMCHAR",
"EM_CHARFROMPOS",
"EM_SETIMESTATUS",
"EM_GETIMESTATUS"
};
static const char * const richedit_messages[] = {
"EM_CANPASTE",
"EM_DISPLAYBAND",
"EM_EXGETSEL",
"EM_EXLIMITTEXT",
"EM_EXLINEFROMCHAR",
"EM_EXSETSEL",
"EM_FINDTEXT",
"EM_FORMATRANGE",
"EM_GETCHARFORMAT",
"EM_GETEVENTMASK",
"EM_GETOLEINTERFACE",
"EM_GETPARAFORMAT",
"EM_GETSELTEXT",
"EM_HIDESELECTION",
"EM_PASTESPECIAL",
"EM_REQUESTRESIZE",
"EM_SELECTIONTYPE",
"EM_SETBKGNDCOLOR",
"EM_SETCHARFORMAT",
"EM_SETEVENTMASK",
"EM_SETOLECALLBACK",
"EM_SETPARAFORMAT",
"EM_SETTARGETDEVICE",
"EM_STREAMIN",
"EM_STREAMOUT",
"EM_GETTEXTRANGE",
"EM_FINDWORDBREAK",
"EM_SETOPTIONS",
"EM_GETOPTIONS",
"EM_FINDTEXTEX",
"EM_GETWORDBREAKPROCEX",
"EM_SETWORDBREAKPROCEX",
"EM_SETUNDOLIMIT",
"EM_UNKNOWN_USER_83",
"EM_REDO",
"EM_CANREDO",
"EM_GETUNDONAME",
"EM_GETREDONAME",
"EM_STOPGROUPTYPING",
"EM_SETTEXTMODE",
"EM_GETTEXTMODE",
"EM_AUTOURLDETECT",
"EM_GETAUTOURLDETECT",
"EM_SETPALETTE",
"EM_GETTEXTEX",
"EM_GETTEXTLENGTHEX",
"EM_SHOWSCROLLBAR",
"EM_SETTEXTEX",
"EM_UNKNOWN_USER_98",
"EM_UNKNOWN_USER_99",
"EM_SETPUNCTUATION",
"EM_GETPUNCTUATION",
"EM_SETWORDWRAPMODE",
"EM_GETWORDWRAPMODE",
"EM_SETIMECOLOR",
"EM_GETIMECOLOR",
"EM_SETIMEOPTIONS",
"EM_GETIMEOPTIONS",
"EM_CONVPOSITION",
"EM_UNKNOWN_USER_109",
"EM_UNKNOWN_USER_110",
"EM_UNKNOWN_USER_111",
"EM_UNKNOWN_USER_112",
"EM_UNKNOWN_USER_113",
"EM_UNKNOWN_USER_114",
"EM_UNKNOWN_USER_115",
"EM_UNKNOWN_USER_116",
"EM_UNKNOWN_USER_117",
"EM_UNKNOWN_USER_118",
"EM_UNKNOWN_USER_119",
"EM_SETLANGOPTIONS",
"EM_GETLANGOPTIONS",
"EM_GETIMECOMPMODE",
"EM_FINDTEXTW",
"EM_FINDTEXTEXW",
"EM_RECONVERSION",
"EM_SETIMEMODEBIAS",
"EM_GETIMEMODEBIAS"
};
static const char *
get_msg_name(UINT msg)
{
if (msg >= EM_GETSEL && msg <= EM_CHARFROMPOS)
return edit_messages[msg - EM_GETSEL];
if (msg >= EM_CANPASTE && msg <= EM_GETIMEMODEBIAS)
return richedit_messages[msg - EM_CANPASTE];
return "";
}
static void ME_LinkNotify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
{
int x,y;
BOOL isExact;
ME_Cursor cursor; /* The start of the clicked text. */
ENLINK info;
x = (short)LOWORD(lParam);
y = (short)HIWORD(lParam);
ME_CharFromPos(editor, x, y, &cursor, &isExact);
if (!isExact) return;
if (cursor.pRun->member.run.style->fmt.dwMask & CFM_LINK &&
cursor.pRun->member.run.style->fmt.dwEffects & CFE_LINK)
{ /* The clicked run has CFE_LINK set */
info.nmhdr.hwndFrom = NULL;
info.nmhdr.idFrom = 0;
info.nmhdr.code = EN_LINK;
info.msg = msg;
info.wParam = wParam;
info.lParam = lParam;
cursor.nOffset = 0;
info.chrg.cpMin = ME_GetCursorOfs(&cursor);
info.chrg.cpMax = info.chrg.cpMin + cursor.pRun->member.run.strText->nLen;
ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
}
}
#define UNSUPPORTED_MSG(e) \
case e: \
FIXME(#e ": stub\n"); \
*phresult = S_FALSE; \
return 0;
/* Handle messages for windowless and windoweded richedit controls.
*
* The LRESULT that is returned is a return value for window procs,
* and the phresult parameter is the COM return code needed by the
* text services interface. */
LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
LPARAM lParam, BOOL unicode, HRESULT* phresult)
{
*phresult = S_OK;
switch(msg) {
UNSUPPORTED_MSG(EM_DISPLAYBAND)
UNSUPPORTED_MSG(EM_FINDWORDBREAK)
UNSUPPORTED_MSG(EM_FMTLINES)
UNSUPPORTED_MSG(EM_FORMATRANGE)
UNSUPPORTED_MSG(EM_GETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_GETEDITSTYLE)
UNSUPPORTED_MSG(EM_GETIMECOMPMODE)
UNSUPPORTED_MSG(EM_GETIMESTATUS)
UNSUPPORTED_MSG(EM_SETIMESTATUS)
UNSUPPORTED_MSG(EM_GETLANGOPTIONS)
UNSUPPORTED_MSG(EM_GETREDONAME)
UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_GETUNDONAME)
UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_PASTESPECIAL)
UNSUPPORTED_MSG(EM_SELECTIONTYPE)
UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_SETEDITSTYLE)
UNSUPPORTED_MSG(EM_SETFONTSIZE)
UNSUPPORTED_MSG(EM_SETLANGOPTIONS)
UNSUPPORTED_MSG(EM_SETMARGINS)
UNSUPPORTED_MSG(EM_SETPALETTE)
UNSUPPORTED_MSG(EM_SETTABSTOPS)
UNSUPPORTED_MSG(EM_SETTYPOGRAPHYOPTIONS)
UNSUPPORTED_MSG(EM_SETWORDBREAKPROCEX)
/* Messages specific to Richedit controls */
case EM_STREAMIN:
return ME_StreamIn(editor, wParam, (EDITSTREAM*)lParam, TRUE);
case EM_STREAMOUT:
return ME_StreamOut(editor, wParam, (EDITSTREAM *)lParam);
case WM_GETDLGCODE:
{
UINT code = DLGC_WANTCHARS|DLGC_WANTTAB|DLGC_WANTARROWS|DLGC_HASSETSEL;
if (editor->styleFlags & ES_MULTILINE)
code |= DLGC_WANTMESSAGE;
return code;
}
case EM_EMPTYUNDOBUFFER:
ME_EmptyUndoStack(editor);
return 0;
case EM_GETSEL:
{
/* Note: wParam/lParam can be NULL */
UINT from, to;
PUINT pfrom = wParam ? (PUINT)wParam : &from;
PUINT pto = lParam ? (PUINT)lParam : &to;
ME_GetSelectionOfs(editor, (int *)pfrom, (int *)pto);
if ((*pfrom|*pto) & 0xFFFF0000)
return -1;
return MAKELONG(*pfrom,*pto);
}
case EM_EXGETSEL:
{
CHARRANGE *pRange = (CHARRANGE *)lParam;
ME_GetSelectionOfs(editor, &pRange->cpMin, &pRange->cpMax);
TRACE("EM_EXGETSEL = (%d,%d)\n", pRange->cpMin, pRange->cpMax);
return 0;
}
case EM_SETUNDOLIMIT:
{
if ((int)wParam < 0)
editor->nUndoLimit = STACK_SIZE_DEFAULT;
else
editor->nUndoLimit = min(wParam, STACK_SIZE_MAX);
/* Setting a max stack size keeps wine from getting killed
for hogging memory. Windows allocates all this memory at once, so
no program would realistically set a value above our maximum. */
return editor->nUndoLimit;
}
case EM_CANUNDO:
return editor->pUndoStack != NULL;
case EM_CANREDO:
return editor->pRedoStack != NULL;
case WM_UNDO: /* FIXME: actually not the same */
case EM_UNDO:
return ME_Undo(editor);
case EM_REDO:
return ME_Redo(editor);
case EM_GETOPTIONS:
{
/* these flags are equivalent to the ES_* counterparts */
DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN | ECO_SELECTIONBAR;
DWORD settings = editor->styleFlags & mask;
return settings;
}
case EM_SETOPTIONS:
{
/* these flags are equivalent to ES_* counterparts, except for
* ECO_AUTOWORDSELECTION that doesn't have an ES_* counterpart,
* but is still stored in editor->styleFlags. */
const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
ECO_SELECTIONBAR | ECO_AUTOWORDSELECTION;
DWORD settings = mask & editor->styleFlags;
DWORD oldSettings = settings;
DWORD changedSettings;
switch(wParam)
{
case ECOOP_SET:
settings = lParam;
break;
case ECOOP_OR:
settings |= lParam;
break;
case ECOOP_AND:
settings &= lParam;
break;
case ECOOP_XOR:
settings ^= lParam;
}
changedSettings = oldSettings ^ settings;
if (changedSettings) {
editor->styleFlags = (editor->styleFlags & ~mask) | (settings & mask);
if (changedSettings & ECO_SELECTIONBAR)
{
ITextHost_TxInvalidateRect(editor->texthost, &editor->rcFormat, TRUE);
if (settings & ECO_SELECTIONBAR) {
assert(!editor->selofs);
editor->selofs = SELECTIONBAR_WIDTH;
editor->rcFormat.left += editor->selofs;
} else {
editor->rcFormat.left -= editor->selofs;
editor->selofs = 0;
}
ME_RewrapRepaint(editor);
}
if (changedSettings & settings & ECO_VERTICAL)
FIXME("ECO_VERTICAL not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOHSCROLL)
FIXME("ECO_AUTOHSCROLL not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOVSCROLL)
FIXME("ECO_AUTOVSCROLL not implemented yet!\n");
if (changedSettings & settings & ECO_NOHIDESEL)
FIXME("ECO_NOHIDESEL not implemented yet!\n");
if (changedSettings & settings & ECO_WANTRETURN)
FIXME("ECO_WANTRETURN not implemented yet!\n");
if (changedSettings & settings & ECO_AUTOWORDSELECTION)
FIXME("ECO_AUTOWORDSELECTION not implemented yet!\n");
}
return settings;
}
case EM_SETSEL:
{
ME_InvalidateSelection(editor);
ME_SetSelection(editor, wParam, lParam);
ME_InvalidateSelection(editor);
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return 0;
}
case EM_SETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
ME_ScrollAbs(editor, point->x, point->y);
return 0;
}
case EM_AUTOURLDETECT:
{
if (wParam==1 || wParam ==0)
{
editor->AutoURLDetect_bEnable = (BOOL)wParam;
return 0;
}
return E_INVALIDARG;
}
case EM_GETAUTOURLDETECT:
{
return editor->AutoURLDetect_bEnable;
}
case EM_EXSETSEL:
{
int end;
CHARRANGE range = *(CHARRANGE *)lParam;
TRACE("EM_EXSETSEL (%d,%d)\n", range.cpMin, range.cpMax);
ME_InvalidateSelection(editor);
end = ME_SetSelection(editor, range.cpMin, range.cpMax);
ME_InvalidateSelection(editor);
ITextHost_TxShowCaret(editor->texthost, FALSE);
ME_ShowCaret(editor);
ME_SendSelChange(editor);
return end;
}
case EM_SHOWSCROLLBAR:
{
DWORD flags;
switch (wParam)
{
case SB_HORZ:
flags = WS_HSCROLL;
break;
case SB_VERT:
flags = WS_VSCROLL;
break;
case SB_BOTH:
flags = WS_HSCROLL|WS_VSCROLL;
break;
default:
return 0;
}
if (lParam) {
editor->styleFlags |= flags;
if (flags & WS_HSCROLL)
ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ,
editor->nTotalWidth > editor->sizeWindow.cx);
if (flags & WS_VSCROLL)
ITextHost_TxShowScrollBar(editor->texthost, SB_VERT,
editor->nTotalLength > editor->sizeWindow.cy);
} else {
editor->styleFlags &= ~flags;
ITextHost_TxShowScrollBar(editor->texthost, wParam, FALSE);
}
return 0;
}
case EM_SETTEXTEX:
{
LPWSTR wszText;
SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
size_t len = 0;
int from, to;
ME_Style *style;
BOOL bRtf, bUnicode, bSelection;
int oldModify = editor->nModifyStep;
if (!pStruct) return 0;
/* If we detect ascii rtf at the start of the string,
* we know it isn't unicode. */
bRtf = (lParam && (!strncmp((char *)lParam, "{\\rtf", 5) ||
!strncmp((char *)lParam, "{\\urtf", 6)));
bUnicode = !bRtf && pStruct->codepage == 1200;
TRACE("EM_SETTEXTEX - %s, flags %d, cp %d\n",
bUnicode ? debugstr_w((LPCWSTR)lParam) : debugstr_a((LPCSTR)lParam),
pStruct->flags, pStruct->codepage);
bSelection = (pStruct->flags & ST_SELECTION) != 0;
if (bSelection) {
int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to - from, FALSE);
} else {
ME_Cursor start;
ME_SetCursorToStart(editor, &start);
ME_InternalDeleteText(editor, &start, ME_GetTextLength(editor), FALSE);
style = editor->pBuffer->pDefaultStyle;
}
if (bRtf) {
ME_StreamInRTFString(editor, bSelection, (char *)lParam);
if (bSelection) {
/* FIXME: The length returned is doesn't include the rtf control
* characters, only the actual text. */
len = lParam ? strlen((char *)lParam) : 0;
}
} else {
/* FIXME: make use of pStruct->codepage in the to unicode translation */
wszText = lParam ? ME_ToUnicode(bUnicode, (void *)lParam) : NULL;
len = wszText ? lstrlenW(wszText) : 0;
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
}
if (bSelection) {
ME_ReleaseStyle(style);
ME_UpdateSelectionLinkAttribute(editor);
} else {
ME_Cursor cursor;
len = 1;
ME_SetCursorToStart(editor, &cursor);
ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
}
ME_CommitUndo(editor);
if (!(pStruct->flags & ST_KEEPUNDO))
{
editor->nModifyStep = oldModify;
ME_EmptyUndoStack(editor);
}
ME_UpdateRepaint(editor);
return len;
}
case EM_SETBKGNDCOLOR:
{
LRESULT lColor;
if (editor->rgbBackColor != -1) {
DeleteObject(editor->hbrBackground);
lColor = editor->rgbBackColor;
}
else lColor = ITextHost_TxGetSysColor(editor->texthost, COLOR_WINDOW);
if (wParam)
{
editor->rgbBackColor = -1;
editor->hbrBackground = GetSysColorBrush(COLOR_WINDOW);
}
else
{
editor->rgbBackColor = lParam;
editor->hbrBackground = CreateSolidBrush(editor->rgbBackColor);
}
ITextHost_TxInvalidateRect(editor->texthost, NULL, TRUE);
ITextHost_TxViewChange(editor->texthost, TRUE);
return lColor;
}
case EM_GETMODIFY:
return editor->nModifyStep == 0 ? 0 : -1;
case EM_SETMODIFY:
{
if (wParam)
editor->nModifyStep = 1;
else
editor->nModifyStep = 0;
return 0;
}
case EM_SETREADONLY:
{
if (wParam)
editor->styleFlags |= ES_READONLY;
else
editor->styleFlags &= ~ES_READONLY;
return 0;
}
case EM_SETEVENTMASK:
{
DWORD nOldMask = editor->nEventMask;
editor->nEventMask = lParam;
return nOldMask;
}
case EM_GETEVENTMASK:
return editor->nEventMask;
case EM_SETCHARFORMAT:
{
CHARFORMAT2W buf, *p;
BOOL bRepaint = TRUE;
p = ME_ToCF2W(&buf, (CHARFORMAT2W *)lParam);
if (p == NULL) return 0;
if (!wParam)
ME_SetDefaultCharFormat(editor, p);
else if (wParam == (SCF_WORD | SCF_SELECTION)) {
FIXME("EM_SETCHARFORMAT: word selection not supported\n");
return 0;
} else if (wParam == SCF_ALL) {
if (editor->mode & TM_PLAINTEXT)
ME_SetDefaultCharFormat(editor, p);
else {
ME_Cursor start;
ME_SetCursorToStart(editor, &start);
ME_SetCharFormat(editor, &start, NULL, p);
editor->nModifyStep = 1;
}
} else if (editor->mode & TM_PLAINTEXT) {
return 0;
} else {
bRepaint = ME_IsSelection(editor);
ME_SetSelectionCharFormat(editor, p);
if (bRepaint) editor->nModifyStep = 1;
}
ME_CommitUndo(editor);
if (bRepaint)
{
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_Repaint(editor);
}
return 1;
}
case EM_GETCHARFORMAT:
{
CHARFORMAT2W tmp, *dst = (CHARFORMAT2W *)lParam;
if (dst->cbSize != sizeof(CHARFORMATA) &&
dst->cbSize != sizeof(CHARFORMATW) &&
dst->cbSize != sizeof(CHARFORMAT2A) &&
dst->cbSize != sizeof(CHARFORMAT2W))
return 0;
tmp.cbSize = sizeof(tmp);
if (!wParam)
ME_GetDefaultCharFormat(editor, &tmp);
else
ME_GetSelectionCharFormat(editor, &tmp);
ME_CopyToCFAny(dst, &tmp);
return tmp.dwMask;
}
case EM_SETPARAFORMAT:
{
BOOL result = ME_SetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_Repaint(editor);
ME_CommitUndo(editor);
return result;
}
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return ((PARAFORMAT2 *)lParam)->dwMask;
case EM_GETFIRSTVISIBLELINE:
{
ME_DisplayItem *p = editor->pBuffer->pFirst;
int y = editor->vert_si.nPos;
int ypara = 0;
int count = 0;
int ystart, yend;
while(p) {
p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
if (p->type == diTextEnd)
break;
if (p->type == diParagraph) {
ypara = p->member.para.pt.y;
continue;
}
ystart = ypara + p->member.row.pt.y;
yend = ystart + p->member.row.nHeight;
if (y < yend) {
break;
}
count++;
}
return count;
}
case EM_HIDESELECTION:
{
editor->bHideSelection = (wParam != 0);
ME_InvalidateSelection(editor);
return 0;
}
case EM_LINESCROLL:
{
if (!(editor->styleFlags & ES_MULTILINE))
return FALSE;
ME_ScrollDown(editor, lParam * 8); /* FIXME follow the original */
return TRUE;
}
case WM_CLEAR:
{
int from, to;
int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case EM_REPLACESEL:
{
int from, to, nStartCursor;
ME_Style *style;
LPWSTR wszText = lParam ? ME_ToUnicode(unicode, (void *)lParam) : NULL;
size_t len = wszText ? lstrlenW(wszText) : 0;
TRACE("EM_REPLACESEL - %s\n", debugstr_w(wszText));
nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_ReleaseStyle(style);
/* drop temporary style if line end */
/*
* FIXME question: does abc\n mean: put abc,
* clear temp style, put \n? (would require a change)
*/
if (len>0 && wszText[len-1] == '\n')
ME_ClearTempStyle(editor);
ME_EndToUnicode(unicode, wszText);
ME_CommitUndo(editor);
ME_UpdateSelectionLinkAttribute(editor);
if (!wParam)
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return len;
}
case EM_SCROLLCARET:
ME_EnsureVisible(editor, &editor->pCursors[0]);
return 0;
case WM_SETFONT:
{
LOGFONTW lf;
CHARFORMAT2W fmt;
HDC hDC;
BOOL bRepaint = LOWORD(lParam);
ME_Cursor start;
if (!wParam)
wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
hDC = ITextHost_TxGetDC(editor->texthost);
ME_CharFormatFromLogFont(hDC, &lf, &fmt);
ITextHost_TxReleaseDC(editor->texthost, hDC);
ME_SetCursorToStart(editor, &start);
ME_SetCharFormat(editor, &start, NULL, &fmt);
ME_SetDefaultCharFormat(editor, &fmt);
ME_CommitUndo(editor);
ME_MarkAllForWrapping(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
if (bRepaint)
ME_Repaint(editor);
return 0;
}
case WM_SETTEXT:
{
ME_Cursor cursor;
ME_SetCursorToStart(editor, &cursor);
ME_InternalDeleteText(editor, &cursor, ME_GetTextLength(editor), FALSE);
if (lParam)
{
TRACE("WM_SETTEXT lParam==%lx\n",lParam);
if (!strncmp((char *)lParam, "{\\rtf", 5) ||
!strncmp((char *)lParam, "{\\urtf", 6))
{
/* Undocumented: WM_SETTEXT supports RTF text */
ME_StreamInRTFString(editor, 0, (char *)lParam);
}
else
{
LPWSTR wszText = ME_ToUnicode(unicode, (void *)lParam);
TRACE("WM_SETTEXT - %s\n", debugstr_w(wszText)); /* debugstr_w() */
if (lstrlenW(wszText) > 0)
{
int len = -1;
/* uses default style! */
if (!(editor->styleFlags & ES_MULTILINE))
{
WCHAR * p;
p = wszText;
while (*p != '\0' && *p != '\r' && *p != '\n') p++;
len = p - wszText;
}
ME_InsertTextFromCursor(editor, 0, wszText, len, editor->pBuffer->pDefaultStyle);
}
ME_EndToUnicode(unicode, wszText);
}
}
else
TRACE("WM_SETTEXT - NULL\n");
ME_SetCursorToStart(editor, &cursor);
ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
ME_SetSelection(editor, 0, 0);
editor->nModifyStep = 0;
ME_CommitUndo(editor);
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor);
return 1;
}
case EM_CANPASTE:
{
UINT nRTFFormat = RegisterClipboardFormatA("Rich Text Format");
if (IsClipboardFormatAvailable(nRTFFormat))
return TRUE;
if (IsClipboardFormatAvailable(CF_UNICODETEXT))
return TRUE;
return FALSE;
}
case WM_PASTE:
ME_Paste(editor);
return 0;
case WM_CUT:
case WM_COPY:
{
int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
int nChars = nTo - nFrom;
ME_Cursor *selStart = &editor->pCursors[nStartCur];
if (ME_Copy(editor, selStart, nChars) && msg == WM_CUT)
{
ME_InternalDeleteText(editor, selStart, nChars, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
}
return 0;
}
case WM_GETTEXTLENGTH:
{
GETTEXTLENGTHEX how;
/* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
how.codepage = unicode ? 1200 : CP_ACP;
return ME_GetTextLengthEx(editor, &how);
}
case EM_GETTEXTLENGTHEX:
return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
case WM_GETTEXT:
{
GETTEXTEX ex;
ex.cb = wParam * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
ex.flags = GT_USECRLF;
ex.codepage = unicode ? 1200 : CP_ACP;
ex.lpDefaultChar = NULL;
ex.lpUsedDefChar = NULL;
return ME_GetTextEx(editor, &ex, lParam);
}
case EM_GETTEXTEX:
return ME_GetTextEx(editor, (GETTEXTEX*)wParam, lParam);
case EM_GETSELTEXT:
{
int nFrom, nTo, nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
ME_Cursor *from = &editor->pCursors[nStartCur];
return ME_GetTextRange(editor, (WCHAR *)lParam, from,
nTo - nFrom, unicode);
}
case EM_GETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
point->x = editor->horz_si.nPos;
point->y = editor->vert_si.nPos;
/* 16-bit scaled value is returned as stored in scrollinfo */
if (editor->horz_si.nMax > 0xffff)
point->x = MulDiv(point->x, 0xffff, editor->horz_si.nMax);
if (editor->vert_si.nMax > 0xffff)
point->y = MulDiv(point->y, 0xffff, editor->vert_si.nMax);
return 1;
}
case EM_GETTEXTRANGE:
{
TEXTRANGEW *rng = (TEXTRANGEW *)lParam;
ME_Cursor start;
int nStart = rng->chrg.cpMin;
int nEnd = rng->chrg.cpMax;
int textlength = ME_GetTextLength(editor);
TRACE("EM_GETTEXTRANGE min=%d max=%d unicode=%d textlength=%d\n",
rng->chrg.cpMin, rng->chrg.cpMax, unicode, textlength);
if (nStart < 0) return 0;
if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
nEnd = textlength;
if (nStart >= nEnd) return 0;
ME_CursorFromCharOfs(editor, nStart, &start);
return ME_GetTextRange(editor, rng->lpstrText, &start, nEnd - nStart, unicode);
}
case EM_GETLINE:
{
ME_DisplayItem *run;
const unsigned int nMaxChars = *(WORD *) lParam;
unsigned int nCharsLeft = nMaxChars;
char *dest = (char *) lParam;
BOOL wroteNull = FALSE;
TRACE("EM_GETLINE: row=%d, nMaxChars=%d (%s)\n", (int) wParam, nMaxChars,
unicode ? "Unicode" : "Ansi");
run = ME_FindRowWithNumber(editor, wParam);
if (run == NULL)
return 0;
while (nCharsLeft && (run = ME_FindItemFwd(run, diRunOrStartRow))
&& run->type == diRun)
{
unsigned int nCopy;
ME_String *strText;
strText = run->member.run.strText;
nCopy = min(nCharsLeft, strText->nLen);
if (unicode)
memcpy(dest, strText->szData, nCopy * sizeof(WCHAR));
else
nCopy = WideCharToMultiByte(CP_ACP, 0, strText->szData, nCopy, dest,
nCharsLeft, NULL, NULL);
dest += nCopy * (unicode ? sizeof(WCHAR) : 1);
nCharsLeft -= nCopy;
}
/* append line termination, space allowing */
if (nCharsLeft > 0)
{
if (unicode)
*((WCHAR *)dest) = '\0';
else
*dest = '\0';
nCharsLeft--;
wroteNull = TRUE;
}
TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
return nMaxChars - nCharsLeft - (wroteNull ? 1 : 0);
}
case EM_GETLINECOUNT:
{
ME_DisplayItem *item = editor->pBuffer->pFirst->next;
int nRows = 0;
ME_DisplayItem *prev_para = NULL, *last_para = NULL;
while (item != editor->pBuffer->pLast)
{
assert(item->type == diParagraph);
prev_para = ME_FindItemBack(item, diRun);
if (prev_para) {
assert(prev_para->member.run.nFlags & MERF_ENDPARA);
}
nRows += item->member.para.nRows;
item = item->member.para.next_para;
}
last_para = ME_FindItemBack(item, diRun);
assert(last_para);
assert(last_para->member.run.nFlags & MERF_ENDPARA);
if (editor->bEmulateVersion10 && prev_para &&
last_para->member.run.nCharOfs == 0 &&
prev_para->member.run.strText->nLen == 1 &&
prev_para->member.run.strText->szData[0] == '\r')
{
/* In 1.0 emulation, the last solitary \r at the very end of the text
(if one exists) is NOT a line break.
FIXME: this is an ugly hack. This should have a more regular model. */
nRows--;
}
TRACE("EM_GETLINECOUNT: nRows==%d\n", nRows);
return max(1, nRows);
}
case EM_LINEFROMCHAR:
{
if (wParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
else
return ME_RowNumberFromCharOfs(editor, wParam);
}
case EM_EXLINEFROMCHAR:
{
if (lParam == -1)
return ME_RowNumberFromCharOfs(editor, ME_GetCursorOfs(&editor->pCursors[1]));
else
return ME_RowNumberFromCharOfs(editor, lParam);
}
case EM_LINEINDEX:
{
ME_DisplayItem *item, *para;
int nCharOfs;
if (wParam == -1)
item = ME_FindItemBack(editor->pCursors[0].pRun, diStartRow);
else
item = ME_FindRowWithNumber(editor, wParam);
if (!item)
return -1;
para = ME_GetParagraph(item);
item = ME_FindItemFwd(item, diRun);
nCharOfs = para->member.para.nCharOfs + item->member.run.nCharOfs;
TRACE("EM_LINEINDEX: nCharOfs==%d\n", nCharOfs);
return nCharOfs;
}
case EM_LINELENGTH:
{
ME_DisplayItem *item, *item_end;
int nChars = 0, nThisLineOfs = 0, nNextLineOfs = 0;
ME_DisplayItem *para, *run;
if (wParam > ME_GetTextLength(editor))
return 0;
if (wParam == -1)
{
FIXME("EM_LINELENGTH: returning number of unselected characters on lines with selection unsupported.\n");
return 0;
}
ME_RunOfsFromCharOfs(editor, wParam, &para, &run, NULL);
item = ME_RowStart(run);
nThisLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item, diRun), 0);
item_end = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
if (item_end->type == diStartRow) {
nNextLineOfs = ME_CharOfsFromRunOfs(editor, para, ME_FindItemFwd(item_end, diRun), 0);
} else {
ME_DisplayItem *endRun = ME_FindItemBack(item_end, diRun);
assert(endRun && endRun->member.run.nFlags & MERF_ENDPARA);
nNextLineOfs = item_end->member.para.nCharOfs - endRun->member.run.strText->nLen;
}
nChars = nNextLineOfs - nThisLineOfs;
TRACE("EM_LINELENGTH(%ld)==%d\n",wParam, nChars);
return nChars;
}
case EM_EXLIMITTEXT:
{
if ((int)lParam < 0)
return 0;
if (lParam == 0)
editor->nTextLimit = 65536;
else
editor->nTextLimit = (int) lParam;
return 0;
}
case EM_LIMITTEXT:
{
if (wParam == 0)
editor->nTextLimit = 65536;
else
editor->nTextLimit = (int) wParam;
return 0;
}
case EM_GETLIMITTEXT:
{
return editor->nTextLimit;
}
case EM_FINDTEXT:
{
FINDTEXTA *ft = (FINDTEXTA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, NULL, 0);
WCHAR *tmp;
LRESULT r;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ft->lpstrText, -1, tmp, nChars);
r = ME_FindText(editor, wParam, &ft->chrg, tmp, NULL);
FREE_OBJ( tmp );
return r;
}
case EM_FINDTEXTEX:
{
FINDTEXTEXA *ex = (FINDTEXTEXA *)lParam;
int nChars = MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, NULL, 0);
WCHAR *tmp;
LRESULT r;
if ((tmp = ALLOC_N_OBJ(WCHAR, nChars)) != NULL)
MultiByteToWideChar(CP_ACP, 0, ex->lpstrText, -1, tmp, nChars);
r = ME_FindText(editor, wParam, &ex->chrg, tmp, &ex->chrgText);
FREE_OBJ( tmp );
return r;
}
case EM_FINDTEXTW:
{
FINDTEXTW *ft = (FINDTEXTW *)lParam;
return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
}
case EM_FINDTEXTEXW:
{
FINDTEXTEXW *ex = (FINDTEXTEXW *)lParam;
return ME_FindText(editor, wParam, &ex->chrg, ex->lpstrText, &ex->chrgText);
}
case EM_GETZOOM:
if (!wParam || !lParam)
return FALSE;
*(int *)wParam = editor->nZoomNumerator;
*(int *)lParam = editor->nZoomDenominator;
return TRUE;
case EM_SETZOOM:
return ME_SetZoom(editor, wParam, lParam);
case EM_CHARFROMPOS:
{
ME_Cursor cursor;
if (ME_CharFromPos(editor, ((POINTL *)lParam)->x, ((POINTL *)lParam)->y,
&cursor, NULL))
return ME_GetCursorOfs(&cursor);
else
return -1;
}
case EM_POSFROMCHAR:
{
ME_DisplayItem *pPara, *pRun;
int nCharOfs, nOffset, nLength;
POINTL pt = {0,0};
nCharOfs = wParam;
/* detect which API version we're dealing with */
if (wParam >= 0x40000)
nCharOfs = lParam;
nLength = ME_GetTextLength(editor);
nCharOfs = min(nCharOfs, nLength);
nCharOfs = max(nCharOfs, 0);
ME_RunOfsFromCharOfs(editor, nCharOfs, &pPara, &pRun, &nOffset);
assert(pRun->type == diRun);
pt.y = pRun->member.run.pt.y;
pt.x = pRun->member.run.pt.x + ME_PointFromChar(editor, &pRun->member.run, nOffset);
pt.y += pPara->member.para.pt.y + editor->rcFormat.top;
pt.x += editor->rcFormat.left;
pt.x -= editor->horz_si.nPos;
pt.y -= editor->vert_si.nPos;
if (wParam >= 0x40000) {
*(POINTL *)wParam = pt;
}
return (wParam >= 0x40000) ? 0 : MAKELONG( pt.x, pt.y );
}
case WM_CREATE:
{
INT max;
ME_SetDefaultFormatRect(editor);
max = (editor->styleFlags & ES_DISABLENOSCROLL) ? 1 : 0;
if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_VSCROLL)
ITextHost_TxSetScrollRange(editor->texthost, SB_VERT, 0, max, TRUE);
if (~editor->styleFlags & ES_DISABLENOSCROLL || editor->styleFlags & WS_HSCROLL)
ITextHost_TxSetScrollRange(editor->texthost, SB_HORZ, 0, max, TRUE);
if (editor->styleFlags & ES_DISABLENOSCROLL)
{
if (editor->styleFlags & WS_VSCROLL)
{
ITextHost_TxEnableScrollBar(editor->texthost, SB_VERT, ESB_DISABLE_BOTH);
ITextHost_TxShowScrollBar(editor->texthost, SB_VERT, TRUE);
}
if (editor->styleFlags & WS_HSCROLL)
{
ITextHost_TxEnableScrollBar(editor->texthost, SB_HORZ, ESB_DISABLE_BOTH);
ITextHost_TxShowScrollBar(editor->texthost, SB_HORZ, TRUE);
}
}
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
ME_MoveCaret(editor);
return 0;
}
case WM_DESTROY:
ME_DestroyEditor(editor);
return 0;
case WM_SETCURSOR:
{
return ME_SetCursor(editor);
}
case WM_LBUTTONDBLCLK:
case WM_LBUTTONDOWN:
{
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
ITextHost_TxSetFocus(editor->texthost);
ME_LButtonDown(editor, (short)LOWORD(lParam), (short)HIWORD(lParam),
ME_CalculateClickCount(editor, msg, wParam, lParam));
ITextHost_TxSetCapture(editor->texthost, TRUE);
editor->bMouseCaptured = TRUE;
ME_LinkNotify(editor,msg,wParam,lParam);
if (!ME_SetCursor(editor)) goto do_default;
break;
}
case WM_MOUSEMOVE:
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
if (editor->bMouseCaptured)
ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
ME_LinkNotify(editor,msg,wParam,lParam);
/* Set cursor if mouse is captured, since WM_SETCURSOR won't be received. */
if (editor->bMouseCaptured)
ME_SetCursor(editor);
break;
case WM_LBUTTONUP:
if (editor->bMouseCaptured) {
ITextHost_TxSetCapture(editor->texthost, FALSE);
editor->bMouseCaptured = FALSE;
}
if (editor->nSelectionType == stDocument)
editor->nSelectionType = stPosition;
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
else
{
ME_SetCursor(editor);
ME_LinkNotify(editor,msg,wParam,lParam);
}
break;
case WM_RBUTTONUP:
case WM_RBUTTONDOWN:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
goto do_default;
case WM_CONTEXTMENU:
if (!ME_ShowContextMenu(editor, (short)LOWORD(lParam), (short)HIWORD(lParam)))
goto do_default;
break;
case WM_SETFOCUS:
editor->bHaveFocus = TRUE;
ME_ShowCaret(editor);
ME_SendOldNotify(editor, EN_SETFOCUS);
return 0;
case WM_KILLFOCUS:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
editor->bHaveFocus = FALSE;
ME_HideCaret(editor);
ME_SendOldNotify(editor, EN_KILLFOCUS);
return 0;
case WM_COMMAND:
TRACE("editor wnd command = %d\n", LOWORD(wParam));
return 0;
case WM_KEYUP:
if ((editor->nEventMask & ENM_KEYEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
goto do_default;
case WM_KEYDOWN:
if ((editor->nEventMask & ENM_KEYEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
if (ME_KeyDown(editor, LOWORD(wParam)))
return 0;
goto do_default;
case WM_CHAR:
return ME_Char(editor, wParam, lParam, unicode);
case WM_UNICHAR:
if (unicode)
{
if(wParam == UNICODE_NOCHAR) return TRUE;
if(wParam <= 0x000fffff)
{
if(wParam > 0xffff) /* convert to surrogates */
{
wParam -= 0x10000;
ME_Char(editor, (wParam >> 10) + 0xd800, 0, TRUE);
ME_Char(editor, (wParam & 0x03ff) + 0xdc00, 0, TRUE);
} else {
ME_Char(editor, wParam, 0, TRUE);
}
}
return 0;
}
break;
case EM_STOPGROUPTYPING:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
return 0;
case WM_HSCROLL:
{
const int scrollUnit = 7;
switch(LOWORD(wParam))
{
case SB_LEFT:
ME_ScrollAbs(editor, 0, 0);
break;
case SB_RIGHT:
ME_ScrollAbs(editor,
editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage);
break;
case SB_LINELEFT:
ME_ScrollLeft(editor, scrollUnit);
break;
case SB_LINERIGHT:
ME_ScrollRight(editor, scrollUnit);
break;
case SB_PAGELEFT:
ME_ScrollLeft(editor, editor->sizeWindow.cx);
break;
case SB_PAGERIGHT:
ME_ScrollRight(editor, editor->sizeWindow.cx);
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
{
int pos = HIWORD(wParam);
if (editor->horz_si.nMax > 0xffff)
pos = MulDiv(pos, editor->horz_si.nMax, 0xffff);
ME_HScrollAbs(editor, pos);
break;
}
}
break;
}
case EM_SCROLL: /* fall through */
case WM_VSCROLL:
{
int origNPos;
int lineHeight;
origNPos = editor->vert_si.nPos;
lineHeight = 24;
if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
if (lineHeight <= 0) lineHeight = 24;
switch(LOWORD(wParam))
{
case SB_TOP:
ME_ScrollAbs(editor, 0, 0);
break;
case SB_BOTTOM:
ME_ScrollAbs(editor,
editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage);
break;
case SB_LINEUP:
ME_ScrollUp(editor,lineHeight);
break;
case SB_LINEDOWN:
ME_ScrollDown(editor,lineHeight);
break;
case SB_PAGEUP:
ME_ScrollUp(editor,editor->sizeWindow.cy);
break;
case SB_PAGEDOWN:
ME_ScrollDown(editor,editor->sizeWindow.cy);
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
{
int pos = HIWORD(wParam);
if (editor->vert_si.nMax > 0xffff)
pos = MulDiv(pos, editor->vert_si.nMax, 0xffff);
ME_VScrollAbs(editor, pos);
break;
}
}
if (msg == EM_SCROLL)
return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
break;
}
case WM_MOUSEWHEEL:
{
int gcWheelDelta;
UINT pulScrollLines;
BOOL ctrl_is_down;
if ((editor->nEventMask & ENM_MOUSEEVENTS) &&
!ME_FilterEvent(editor, msg, &wParam, &lParam))
return 0;
ctrl_is_down = GetKeyState(VK_CONTROL) & 0x8000;
gcWheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
if (abs(gcWheelDelta) >= WHEEL_DELTA)
{
if (ctrl_is_down) {
int numerator;
if (!editor->nZoomNumerator || !editor->nZoomDenominator)
{
numerator = 100;
} else {
numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
}
numerator = numerator + (gcWheelDelta / WHEEL_DELTA) * 10;
if (numerator >= 10 && numerator <= 500)
ME_SetZoom(editor, numerator, 100);
} else {
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
/* FIXME follow the original */
if (pulScrollLines)
ME_ScrollDown(editor,pulScrollLines * (-gcWheelDelta / WHEEL_DELTA) * 8);
}
}
break;
}
case EM_GETRECT:
{
*((RECT *)lParam) = editor->rcFormat;
if (editor->bDefaultFormatRect)
((RECT *)lParam)->left -= editor->selofs;
return 0;
}
case EM_SETRECT:
case EM_SETRECTNP:
{
if (lParam)
{
int border = 0;
RECT clientRect;
RECT *rc = (RECT *)lParam;
border = editor->exStyleFlags & WS_EX_CLIENTEDGE ? 1 : 0;
ITextHost_TxGetClientRect(editor->texthost, &clientRect);
if (wParam == 0)
{
editor->rcFormat.top = max(0, rc->top - border);
editor->rcFormat.left = max(0, rc->left - border);
editor->rcFormat.bottom = min(clientRect.bottom, rc->bottom);
editor->rcFormat.right = min(clientRect.right, rc->right + border);
} else if (wParam == 1) {
/* MSDN incorrectly says a wParam value of 1 causes the
* lParam rect to be used as a relative offset,
* however, the tests show it just prevents min/max bound
* checking. */
editor->rcFormat.top = rc->top - border;
editor->rcFormat.left = rc->left - border;
editor->rcFormat.bottom = rc->bottom;
editor->rcFormat.right = rc->right + border;
} else {
return 0;
}
editor->bDefaultFormatRect = FALSE;
}
else
{
ME_SetDefaultFormatRect(editor);
editor->bDefaultFormatRect = TRUE;
}
ME_MarkAllForWrapping(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
if (msg != EM_SETRECTNP)
ME_Repaint(editor);
return 0;
}
case EM_REQUESTRESIZE:
ME_SendRequestResize(editor, TRUE);
return 0;
case WM_SETREDRAW:
goto do_default;
case WM_SIZE:
{
RECT clientRect;
ITextHost_TxGetClientRect(editor->texthost, &clientRect);
if (editor->bDefaultFormatRect) {
ME_SetDefaultFormatRect(editor);
} else {
editor->rcFormat.right += clientRect.right - editor->prevClientRect.right;
editor->rcFormat.bottom += clientRect.bottom - editor->prevClientRect.bottom;
}
editor->prevClientRect = clientRect;
ME_RewrapRepaint(editor);
goto do_default;
}
/* IME messages to make richedit controls IME aware */
case WM_IME_SETCONTEXT:
case WM_IME_CONTROL:
case WM_IME_SELECT:
case WM_IME_COMPOSITIONFULL:
return 0;
case WM_IME_STARTCOMPOSITION:
{
editor->imeStartIndex=ME_GetCursorOfs(&editor->pCursors[0]);
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor);
return 0;
}
case WM_IME_COMPOSITION:
{
HIMC hIMC;
ME_Style *style = ME_GetInsertStyle(editor, 0);
hIMC = ITextHost_TxImmGetContext(editor->texthost);
ME_DeleteSelection(editor);
ME_CommitUndo(editor);
ME_SaveTempStyle(editor);
if (lParam & GCS_RESULTSTR)
{
LPWSTR lpCompStr = NULL;
DWORD dwBufLen;
dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpCompStr, dwBufLen);
lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
}
else if (lParam & GCS_COMPSTR)
{
LPWSTR lpCompStr = NULL;
DWORD dwBufLen;
dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
ME_SetSelection(editor,editor->imeStartIndex,
editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
}
ME_ReleaseStyle(style);
ME_UpdateRepaint(editor);
return 0;
}
case WM_IME_ENDCOMPOSITION:
{
ME_DeleteSelection(editor);
editor->imeStartIndex=-1;
return 0;
}
case EM_GETOLEINTERFACE:
{
LPVOID *ppvObj = (LPVOID*) lParam;
return CreateIRichEditOle(editor, ppvObj);
}
case EM_GETPASSWORDCHAR:
{
return editor->cPasswordMask;
}
case EM_SETOLECALLBACK:
if(editor->lpOleCallback)
IUnknown_Release(editor->lpOleCallback);
editor->lpOleCallback = (LPRICHEDITOLECALLBACK)lParam;
if(editor->lpOleCallback)
IUnknown_AddRef(editor->lpOleCallback);
return TRUE;
case EM_GETWORDBREAKPROC:
return (LRESULT)editor->pfnWordBreak;
case EM_SETWORDBREAKPROC:
{
EDITWORDBREAKPROCW pfnOld = editor->pfnWordBreak;
editor->pfnWordBreak = (EDITWORDBREAKPROCW)lParam;
return (LRESULT)pfnOld;
}
case EM_GETTEXTMODE:
return editor->mode;
case EM_SETTEXTMODE:
{
LRESULT ret;
int mask = 0;
int changes = 0;
GETTEXTLENGTHEX how;
/* CR/LF conversion required in 2.0 mode, verbatim in 1.0 mode */
how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
how.codepage = unicode ? 1200 : CP_ACP;
ret = ME_GetTextLengthEx(editor, &how);
if (!ret)
{
/*Check for valid wParam*/
if ((((wParam & TM_RICHTEXT) && ((wParam & TM_PLAINTEXT) << 1))) ||
(((wParam & TM_MULTILEVELUNDO) && ((wParam & TM_SINGLELEVELUNDO) << 1))) ||
(((wParam & TM_MULTICODEPAGE) && ((wParam & TM_SINGLECODEPAGE) << 1))))
return 1;
else
{
if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
{
mask |= (TM_RICHTEXT | TM_PLAINTEXT);
changes |= (wParam & (TM_RICHTEXT | TM_PLAINTEXT));
}
/*FIXME: Currently no support for undo level and code page options*/
editor->mode = (editor->mode & (~mask)) | changes;
return 0;
}
}
return ret;
}
case EM_SETPASSWORDCHAR:
{
editor->cPasswordMask = wParam;
ME_RewrapRepaint(editor);
return 0;
}
case EM_SETTARGETDEVICE:
if (wParam == 0)
{
BOOL new = (lParam == 0 && (editor->styleFlags & ES_MULTILINE));
if (editor->nAvailWidth || editor->bWordWrap != new)
{
editor->bWordWrap = new;
editor->nAvailWidth = 0; /* wrap to client area */
ME_RewrapRepaint(editor);
}
} else {
int width = max(0, lParam);
if ((editor->styleFlags & ES_MULTILINE) &&
(!editor->bWordWrap || editor->nAvailWidth != width))
{
editor->nAvailWidth = width;
editor->bWordWrap = TRUE;
ME_RewrapRepaint(editor);
}
FIXME("EM_SETTARGETDEVICE doesn't use non-NULL target devices\n");
}
return TRUE;
default:
do_default:
*phresult = S_FALSE;
break;
}
return 0L;
}
static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
LPARAM lParam, BOOL unicode)
{
ME_TextEditor *editor;
HRESULT hresult;
LRESULT lresult = 0;
TRACE("enter hwnd %p msg %04x (%s) %lx %lx, unicode %d\n",
hWnd, msg, get_msg_name(msg), wParam, lParam, unicode);
editor = (ME_TextEditor *)GetWindowLongPtrW(hWnd, 0);
if (!editor)
{
if (msg == WM_NCCREATE)
{
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
ITextHost *texthost;
TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
texthost = ME_CreateTextHost(hWnd, FALSE);
return texthost != NULL;
}
else if (msg != WM_NCDESTROY)
{
ERR("called with invalid hWnd %p - application bug?\n", hWnd);
return 0;
}
}
switch (msg)
{
case WM_PAINT:
{
HDC hDC;
RECT rc;
PAINTSTRUCT ps;
hDC = BeginPaint(editor->hWnd, &ps);
/* Erase area outside of the formatting rectangle */
if (ps.rcPaint.top < editor->rcFormat.top)
{
rc = ps.rcPaint;
rc.bottom = editor->rcFormat.top;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.top = editor->rcFormat.top;
}
if (ps.rcPaint.bottom > editor->rcFormat.bottom) {
rc = ps.rcPaint;
rc.top = editor->rcFormat.bottom;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.bottom = editor->rcFormat.bottom;
}
if (ps.rcPaint.left < editor->rcFormat.left) {
rc = ps.rcPaint;
rc.right = editor->rcFormat.left;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.left = editor->rcFormat.left;
}
if (ps.rcPaint.right > editor->rcFormat.right) {
rc = ps.rcPaint;
rc.left = editor->rcFormat.right;
FillRect(hDC, &rc, editor->hbrBackground);
ps.rcPaint.right = editor->rcFormat.right;
}
ME_PaintContent(editor, hDC, FALSE, &ps.rcPaint);
EndPaint(editor->hWnd, &ps);
return 0;
}
case WM_ERASEBKGND:
{
HDC hDC = (HDC)wParam;
RECT rc;
if (GetUpdateRect(editor->hWnd, &rc, TRUE))
FillRect(hDC, &rc, editor->hbrBackground);
return 1;
}
case EM_SETOPTIONS:
{
DWORD dwStyle;
const DWORD mask = ECO_VERTICAL | ECO_AUTOHSCROLL | ECO_AUTOVSCROLL |
ECO_NOHIDESEL | ECO_READONLY | ECO_WANTRETURN |
ECO_SELECTIONBAR;
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
dwStyle = (dwStyle & ~mask) | (lresult & mask);
SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
return lresult;
}
case EM_SETREADONLY:
{
DWORD dwStyle;
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
dwStyle = GetWindowLongW(hWnd, GWL_STYLE);
dwStyle &= ~ES_READONLY;
if (wParam)
dwStyle |= ES_READONLY;
SetWindowLongW(hWnd, GWL_STYLE, dwStyle);
return lresult;
}
default:
lresult = ME_HandleMessage(editor, msg, wParam, lParam, unicode, &hresult);
}
if (hresult == S_FALSE)
lresult = DefWindowProcW(hWnd, msg, wParam, lParam);
TRACE("exit hwnd %p msg %04x (%s) %lx %lx, unicode %d -> %lu\n",
hWnd, msg, get_msg_name(msg), wParam, lParam, unicode, lresult);
return lresult;
}
static LRESULT WINAPI RichEditWndProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
BOOL unicode = TRUE;
/* Under Win9x RichEdit20W returns ANSI strings, see the tests. */
if (msg == WM_GETTEXT && (GetVersion() & 0x80000000))
unicode = FALSE;
return RichEditWndProc_common(hWnd, msg, wParam, lParam, unicode);
}
static LRESULT WINAPI RichEditWndProcA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
return RichEditWndProc_common(hWnd, msg, wParam, lParam, FALSE);
}
/******************************************************************
* RichEditANSIWndProc (RICHED20.10)
*/
LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
return RichEditWndProcA(hWnd, msg, wParam, lParam);
}
/******************************************************************
* RichEdit10ANSIWndProc (RICHED20.9)
*/
LRESULT WINAPI RichEdit10ANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (msg == WM_NCCREATE && !GetWindowLongPtrW(hWnd, 0))
{
ITextHost *texthost;
CREATESTRUCTW *pcs = (CREATESTRUCTW *)lParam;
TRACE("WM_NCCREATE: hWnd %p style 0x%08x\n", hWnd, pcs->style);
texthost = ME_CreateTextHost(hWnd, TRUE);
return texthost != NULL;
}
return RichEditANSIWndProc(hWnd, msg, wParam, lParam);
}
void ME_SendOldNotify(ME_TextEditor *editor, int nCode)
{
ITextHost_TxNotify(editor->texthost, nCode, NULL);
}
/* Fill buffer with srcChars unicode characters from the start cursor.
*
* buffer: destination buffer
* buflen: length of buffer in characters excluding the NULL terminator.
* start: start of editor text to copy into buffer.
* srcChars: Number of characters to use from the editor text.
* bCRLF: if true, replaces all end of lines with \r\n pairs.
*
* returns the number of characters written excluding the NULL terminator.
*
* The written text is always NULL terminated.
*/
int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
const ME_Cursor *start, int srcChars, BOOL bCRLF)
{
ME_DisplayItem *pRun, *pNextRun;
const WCHAR *pStart = buffer;
const WCHAR cr_lf[] = {'\r', '\n', 0};
const WCHAR *str;
int nLen;
/* bCRLF flag is only honored in 2.0 and up. 1.0 must always return text verbatim */
if (editor->bEmulateVersion10) bCRLF = 0;
pRun = start->pRun;
assert(pRun);
pNextRun = ME_FindItemFwd(pRun, diRun);
nLen = pRun->member.run.strText->nLen - start->nOffset;
str = pRun->member.run.strText->szData + start->nOffset;
/* No '\r' is appended to the last paragraph. */
while (srcChars && buflen && pNextRun)
{
int nFlags = pRun->member.run.nFlags;
if (bCRLF && nFlags & MERF_ENDPARA && ~nFlags & MERF_ENDCELL)
{
if (buflen == 1) break;
/* FIXME: native fails to reduce srcChars here for WM_GETTEXT or
* EM_GETTEXTEX, however, this is done for copying text which
* also uses this function. */
srcChars -= min(nLen, srcChars);
nLen = 2;
str = cr_lf;
} else {
nLen = min(nLen, srcChars);
srcChars -= nLen;
}
nLen = min(nLen, buflen);
buflen -= nLen;
CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
buffer += nLen;
pRun = pNextRun;
pNextRun = ME_FindItemFwd(pRun, diRun);
nLen = pRun->member.run.strText->nLen;
str = pRun->member.run.strText->szData;
}
*buffer = 0;
return buffer - pStart;
}
static BOOL ME_RegisterEditorClass(HINSTANCE hInstance)
{
WNDCLASSW wcW;
WNDCLASSA wcA;
wcW.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcW.lpfnWndProc = RichEditWndProcW;
wcW.cbClsExtra = 0;
wcW.cbWndExtra = sizeof(ME_TextEditor *);
wcW.hInstance = NULL; /* hInstance would register DLL-local class */
wcW.hIcon = NULL;
wcW.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcW.hbrBackground = GetStockObject(NULL_BRUSH);
wcW.lpszMenuName = NULL;
if (is_version_nt())
{
wcW.lpszClassName = RICHEDIT_CLASS20W;
if (!RegisterClassW(&wcW)) return FALSE;
wcW.lpszClassName = MSFTEDIT_CLASS;
if (!RegisterClassW(&wcW)) return FALSE;
}
else
{
/* WNDCLASSA/W have the same layout */
wcW.lpszClassName = (LPCWSTR)"RichEdit20W";
if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
wcW.lpszClassName = (LPCWSTR)"RichEdit50W";
if (!RegisterClassA((WNDCLASSA *)&wcW)) return FALSE;
}
wcA.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
wcA.lpfnWndProc = RichEditWndProcA;
wcA.cbClsExtra = 0;
wcA.cbWndExtra = sizeof(ME_TextEditor *);
wcA.hInstance = NULL; /* hInstance would register DLL-local class */
wcA.hIcon = NULL;
wcA.hCursor = LoadCursorW(NULL, MAKEINTRESOURCEW(IDC_IBEAM));
wcA.hbrBackground = GetStockObject(NULL_BRUSH);
wcA.lpszMenuName = NULL;
wcA.lpszClassName = RICHEDIT_CLASS20A;
if (!RegisterClassA(&wcA)) return FALSE;
wcA.lpszClassName = "RichEdit50A";
if (!RegisterClassA(&wcA)) return FALSE;
return TRUE;
}
static LRESULT WINAPI REComboWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
/* FIXME: Not implemented */
TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
hWnd, msg, get_msg_name(msg), wParam, lParam);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
static LRESULT WINAPI REListWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
/* FIXME: Not implemented */
TRACE("hWnd %p msg %04x (%s) %08lx %08lx\n",
hWnd, msg, get_msg_name(msg), wParam, lParam);
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
/******************************************************************
* REExtendedRegisterClass (RICHED20.8)
*
* FIXME undocumented
* Need to check for errors and implement controls and callbacks
*/
LRESULT WINAPI REExtendedRegisterClass(void)
{
WNDCLASSW wcW;
UINT result;
FIXME("semi stub\n");
wcW.cbClsExtra = 0;
wcW.cbWndExtra = 4;
wcW.hInstance = NULL;
wcW.hIcon = NULL;
wcW.hCursor = NULL;
wcW.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcW.lpszMenuName = NULL;
if (!ME_ListBoxRegistered)
{
wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS;
wcW.lpfnWndProc = REListWndProc;
wcW.lpszClassName = REListBox20W;
if (RegisterClassW(&wcW)) ME_ListBoxRegistered = TRUE;
}
if (!ME_ComboBoxRegistered)
{
wcW.style = CS_PARENTDC | CS_DBLCLKS | CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
wcW.lpfnWndProc = REComboWndProc;
wcW.lpszClassName = REComboBox20W;
if (RegisterClassW(&wcW)) ME_ComboBoxRegistered = TRUE;
}
result = 0;
if (ME_ListBoxRegistered)
result += 1;
if (ME_ComboBoxRegistered)
result += 2;
return result;
}
static BOOL isurlspecial(WCHAR c)
{
static const WCHAR special_chars[] = {'.','/','%','@','*','|','\\','+','#',0};
return strchrW( special_chars, c ) != NULL;
}
/**
* This proc takes a selection, and scans it forward in order to select the span
* of a possible URL candidate. A possible URL candidate must start with isalnum
* or one of the following special characters: *|/\+%#@ and must consist entirely
* of the characters allowed to start the URL, plus : (colon) which may occur
* at most once, and not at either end.
*/
static BOOL ME_FindNextURLCandidate(ME_TextEditor *editor,
const ME_Cursor *start,
int nChars,
ME_Cursor *candidate_min,
ME_Cursor *candidate_max)
{
ME_Cursor cursor = *start;
BOOL foundColon = FALSE;
BOOL candidateStarted = FALSE;
WCHAR lastAcceptedChar = '\0';
while (nChars > 0)
{
WCHAR *strStart = cursor.pRun->member.run.strText->szData;
WCHAR *str = strStart + cursor.nOffset;
int nLen = cursor.pRun->member.run.strText->nLen - cursor.nOffset;
nChars -= nLen;
if (~cursor.pRun->member.run.nFlags & MERF_ENDPARA)
{
/* Find start of candidate */
if (!candidateStarted)
{
while (nLen)
{
nLen--;
if (isalnumW(*str) || isurlspecial(*str))
{
cursor.nOffset = str - strStart;
*candidate_min = cursor;
candidateStarted = TRUE;
lastAcceptedChar = *str++;
break;
}
str++;
}
}
/* Find end of candidate */
if (candidateStarted) {
while (nLen)
{
nLen--;
if (*str == ':' && !foundColon) {
foundColon = TRUE;
} else if (!isalnumW(*str) && !isurlspecial(*str)) {
cursor.nOffset = str - strStart;
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
lastAcceptedChar = *str++;
}
}
} else {
/* End of paragraph: skip it if before candidate span, or terminates
current active span */
if (candidateStarted) {
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
}
/* Reaching this point means no span was found, so get next span */
if (!ME_NextRun(&cursor.pPara, &cursor.pRun)) {
if (candidateStarted) {
/* There are no further runs, so take end of text as end of candidate */
cursor.nOffset = str - strStart;
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
*candidate_max = *candidate_min = cursor;
return FALSE;
}
cursor.nOffset = 0;
}
if (candidateStarted) {
/* There are no further runs, so take end of text as end of candidate */
if (lastAcceptedChar == ':')
ME_MoveCursorChars(editor, &cursor, -1);
*candidate_max = cursor;
return TRUE;
}
*candidate_max = *candidate_min = cursor;
return FALSE;
}
/**
* This proc evaluates the selection and returns TRUE if it can be considered an URL
*/
static BOOL ME_IsCandidateAnURL(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
#define MAX_PREFIX_LEN 9
struct prefix_s {
const WCHAR text[MAX_PREFIX_LEN];
int length;
}prefixes[] = {
{{'p','r','o','s','p','e','r','o',':'}, 9},
{{'t','e','l','n','e','t',':'}, 7},
{{'g','o','p','h','e','r',':'}, 7},
{{'m','a','i','l','t','o',':'}, 7},
{{'h','t','t','p','s',':'}, 6},
{{'f','i','l','e',':'}, 5},
{{'n','e','w','s',':'}, 5},
{{'w','a','i','s',':'}, 5},
{{'n','n','t','p',':'}, 5},
{{'h','t','t','p',':'}, 5},
{{'w','w','w','.'}, 4},
{{'f','t','p',':'}, 4},
};
WCHAR bufferW[MAX_PREFIX_LEN + 1];
unsigned int i;
ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, 0);
for (i = 0; i < sizeof(prefixes) / sizeof(*prefixes); i++)
{
if (nChars < prefixes[i].length) continue;
if (!memcmp(prefixes[i].text, bufferW, prefixes[i].length * sizeof(WCHAR)))
return TRUE;
}
return FALSE;
#undef MAX_PREFIX_LEN
}
/**
* This proc walks through the indicated selection and evaluates whether each
* section identified by ME_FindNextURLCandidate and in-between sections have
* their proper CFE_LINK attributes set or unset. If the CFE_LINK attribute is
* not what it is supposed to be, this proc sets or unsets it as appropriate.
*
* Since this function can cause runs to be split, do not depend on the value
* of the start cursor at the end of the function.
*
* nChars may be set to INT_MAX to update to the end of the text.
*
* Returns TRUE if at least one section was modified.
*/
static BOOL ME_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars)
{
BOOL modified = FALSE;
ME_Cursor startCur = *start;
if (!editor->AutoURLDetect_bEnable) return FALSE;
do
{
CHARFORMAT2W link;
ME_Cursor candidateStart, candidateEnd;
if (ME_FindNextURLCandidate(editor, &startCur, nChars,
&candidateStart, &candidateEnd))
{
/* Section before candidate is not an URL */
int cMin = ME_GetCursorOfs(&candidateStart);
int cMax = ME_GetCursorOfs(&candidateEnd);
if (!ME_IsCandidateAnURL(editor, &candidateStart, cMax - cMin))
candidateStart = candidateEnd;
nChars -= cMax - ME_GetCursorOfs(&startCur);
}
else
{
/* No more candidates until end of selection */
nChars = 0;
}
if (startCur.pRun != candidateStart.pRun ||
startCur.nOffset != candidateStart.nOffset)
{
/* CFE_LINK effect should be consistently unset */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, &startCur, &candidateStart, &link);
if (!(link.dwMask & CFM_LINK) || (link.dwEffects & CFE_LINK))
{
/* CFE_LINK must be unset from this range */
memset(&link, 0, sizeof(CHARFORMAT2W));
link.cbSize = sizeof(link);
link.dwMask = CFM_LINK;
link.dwEffects = 0;
ME_SetCharFormat(editor, &startCur, &candidateStart, &link);
/* Update candidateEnd since setting character formats may split
* runs, which can cause a cursor to be at an invalid offset within
* a split run. */
while (candidateEnd.nOffset >= candidateEnd.pRun->member.run.strText->nLen)
{
candidateEnd.nOffset -= candidateEnd.pRun->member.run.strText->nLen;
candidateEnd.pRun = ME_FindItemFwd(candidateEnd.pRun, diRun);
}
modified = TRUE;
}
}
if (candidateStart.pRun != candidateEnd.pRun ||
candidateStart.nOffset != candidateEnd.nOffset)
{
/* CFE_LINK effect should be consistently set */
link.cbSize = sizeof(link);
ME_GetCharFormat(editor, &candidateStart, &candidateEnd, &link);
if (!(link.dwMask & CFM_LINK) || !(link.dwEffects & CFE_LINK))
{
/* CFE_LINK must be set on this range */
memset(&link, 0, sizeof(CHARFORMAT2W));
link.cbSize = sizeof(link);
link.dwMask = CFM_LINK;
link.dwEffects = CFE_LINK;
ME_SetCharFormat(editor, &candidateStart, &candidateEnd, &link);
modified = TRUE;
}
}
startCur = candidateEnd;
} while (nChars > 0);
return modified;
}
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