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wine/dlls/riched20/editor.c
Santino Mazza 25209c162f riched20: Ensure that cursor is visible when selecting text. 
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=40444
Signed-off-by: Santino Mazza <mazzasantino1206@gmail.com>
2022-07-28 17:34:02 +02:00

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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
- 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?
*
*/
#define NONAMELESSUNION
#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_UpdateLinkAttribute(ME_TextEditor *editor, ME_Cursor *start, int nChars);
HINSTANCE dll_instance = NULL;
BOOL me_debug = FALSE;
static ME_TextBuffer *ME_MakeText(void) {
ME_TextBuffer *buf = heap_alloc(sizeof(*buf));
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;
}
ME_Paragraph *editor_first_para( ME_TextEditor *editor )
{
return para_next( &editor->pBuffer->pFirst->member.para );
}
/* Note, returns the diTextEnd sentinel paragraph */
ME_Paragraph *editor_end_para( ME_TextEditor *editor )
{
return &editor->pBuffer->pLast->member.para;
}
static BOOL editor_beep( ME_TextEditor *editor, UINT type )
{
return editor->props & TXTBIT_ALLOWBEEP && MessageBeep( type );
}
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
{
WCHAR *pText;
LRESULT total_bytes_read = 0;
BOOL is_read = FALSE;
DWORD cp = CP_ACP, copy = 0;
char conv_buf[4 + STREAMIN_BUFFER_SIZE]; /* up to 4 additional UTF-8 bytes */
static const char bom_utf8[] = {0xEF, 0xBB, 0xBF};
TRACE("%08lx %p\n", dwFormat, stream);
do {
LONG nWideChars = 0;
WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
if (!stream->dwSize)
{
ME_StreamInFill(stream);
if (stream->editstream->dwError)
break;
if (!stream->dwSize)
break;
total_bytes_read += stream->dwSize;
}
if (!(dwFormat & SF_UNICODE))
{
char * buf = stream->buffer;
DWORD size = stream->dwSize, end;
if (!is_read)
{
is_read = TRUE;
if (stream->dwSize >= 3 && !memcmp(stream->buffer, bom_utf8, 3))
{
cp = CP_UTF8;
buf += 3;
size -= 3;
}
}
if (cp == CP_UTF8)
{
if (copy)
{
memcpy(conv_buf + copy, buf, size);
buf = conv_buf;
size += copy;
}
end = size;
while ((buf[end-1] & 0xC0) == 0x80)
{
--end;
--total_bytes_read; /* strange, but seems to match windows */
}
if (buf[end-1] & 0x80)
{
DWORD need = 0;
if ((buf[end-1] & 0xE0) == 0xC0)
need = 1;
if ((buf[end-1] & 0xF0) == 0xE0)
need = 2;
if ((buf[end-1] & 0xF8) == 0xF0)
need = 3;
if (size - end >= need)
{
/* we have enough bytes for this sequence */
end = size;
}
else
{
/* need more bytes, so don't transcode this sequence */
--end;
}
}
}
else
end = size;
nWideChars = MultiByteToWideChar(cp, 0, buf, end, wszText, STREAMIN_BUFFER_SIZE);
pText = wszText;
if (cp == CP_UTF8)
{
if (end != size)
{
memcpy(conv_buf, buf + end, size - end);
copy = size - end;
}
}
}
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);
return total_bytes_read;
}
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_UNDERLINE | 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_UNDERLINE;
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 | CFM_UNDERLINE;
fmt.bUnderlineType = CFU_UNDERLINE;
fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
break;
case rtfDotUnderline:
fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
fmt.bUnderlineType = CFU_UNDERLINEDOTTED;
fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
break;
case rtfDbUnderline:
fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
fmt.bUnderlineType = CFU_UNDERLINEDOUBLE;
fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
break;
case rtfWordUnderline:
fmt.dwMask = CFM_UNDERLINETYPE | CFM_UNDERLINE;
fmt.bUnderlineType = CFU_UNDERLINEWORD;
fmt.dwEffects = info->rtfParam ? CFE_UNDERLINE : 0;
break;
case rtfNoUnderline:
fmt.dwMask = CFM_UNDERLINE;
fmt.dwEffects = 0;
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.crBackColor = (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, ARRAY_SIZE(fmt.szFaceName));
fmt.szFaceName[ARRAY_SIZE(fmt.szFaceName)-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->editor, 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)
{
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;
info->fmt.dwMask = PFM_ALIGNMENT | PFM_BORDER | PFM_LINESPACING | PFM_TABSTOPS |
PFM_OFFSET | PFM_RIGHTINDENT | PFM_SPACEAFTER | PFM_SPACEBEFORE |
PFM_STARTINDENT | PFM_RTLPARA | PFM_NUMBERING | PFM_NUMBERINGSTART |
PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB;
/* TODO: shading */
info->fmt.wAlignment = PFA_LEFT;
info->fmt.cTabCount = 0;
info->fmt.dxOffset = info->fmt.dxStartIndent = info->fmt.dxRightIndent = 0;
info->fmt.wBorderWidth = info->fmt.wBorders = 0;
info->fmt.wBorderSpace = 0;
info->fmt.bLineSpacingRule = 0;
info->fmt.dySpaceBefore = info->fmt.dySpaceAfter = 0;
info->fmt.dyLineSpacing = 0;
info->fmt.wEffects &= ~PFE_RTLPARA;
info->fmt.wNumbering = 0;
info->fmt.wNumberingStart = 0;
info->fmt.wNumberingStyle = 0;
info->fmt.wNumberingTab = 0;
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->tableDef && info->tableDef->row_start &&
info->tableDef->row_start->nFlags & MEPF_ROWEND)
{
ME_Cursor cursor;
ME_Paragraph *para;
/* We are just after a table row. */
RTFFlushOutputBuffer(info);
cursor = info->editor->pCursors[0];
para = cursor.para;
if (para == para_next( info->tableDef->row_start )
&& !cursor.nOffset && !cursor.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->row_start = NULL;
info->canInheritInTbl = FALSE;
}
}
}
else /* v1.0 - v3.0 */
{
info->fmt.dwMask |= PFM_TABLE;
info->fmt.wEffects &= ~PFE_TABLE;
}
break;
case rtfNestLevel:
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
while (info->rtfParam > info->nestingLevel)
{
RTFTable *tableDef = heap_alloc_zero(sizeof(*tableDef));
tableDef->parent = info->tableDef;
info->tableDef = tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->row_start && tableDef->row_start->nFlags & MEPF_ROWEND)
{
ME_Paragraph *para = para_next( tableDef->row_start );
tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
}
else
{
ME_Cursor cursor;
cursor = info->editor->pCursors[0];
if (cursor.nOffset || cursor.run->nCharOfs)
ME_InsertTextFromCursor(info->editor, 0, L"\r", 1, info->style);
tableDef->row_start = table_insert_row_start( info->editor, info->editor->pCursors );
}
info->nestingLevel++;
}
info->canInheritInTbl = FALSE;
}
break;
case rtfInTable:
{
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (info->nestingLevel < 1)
{
RTFTable *tableDef;
ME_Paragraph *para;
if (!info->tableDef)
info->tableDef = heap_alloc_zero(sizeof(*info->tableDef));
tableDef = info->tableDef;
RTFFlushOutputBuffer(info);
if (tableDef->row_start && tableDef->row_start->nFlags & MEPF_ROWEND)
para = para_next( tableDef->row_start );
else
para = info->editor->pCursors[0].para;
tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
info->nestingLevel = 1;
info->canInheritInTbl = TRUE;
}
return;
} else { /* v1.0 - v3.0 */
info->fmt.dwMask |= PFM_TABLE;
info->fmt.wEffects |= PFE_TABLE;
}
break;
}
case rtfFirstIndent:
case rtfLeftIndent:
if ((info->fmt.dwMask & (PFM_STARTINDENT | PFM_OFFSET)) != (PFM_STARTINDENT | PFM_OFFSET))
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
editor_get_selection_para_fmt( info->editor, &fmt );
info->fmt.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
info->fmt.dxStartIndent = fmt.dxStartIndent;
info->fmt.dxOffset = fmt.dxOffset;
}
if (info->rtfMinor == rtfFirstIndent)
{
info->fmt.dxStartIndent += info->fmt.dxOffset + info->rtfParam;
info->fmt.dxOffset = -info->rtfParam;
}
else
info->fmt.dxStartIndent = info->rtfParam - info->fmt.dxOffset;
break;
case rtfRightIndent:
info->fmt.dwMask |= PFM_RIGHTINDENT;
info->fmt.dxRightIndent = info->rtfParam;
break;
case rtfQuadLeft:
case rtfQuadJust:
info->fmt.dwMask |= PFM_ALIGNMENT;
info->fmt.wAlignment = PFA_LEFT;
break;
case rtfQuadRight:
info->fmt.dwMask |= PFM_ALIGNMENT;
info->fmt.wAlignment = PFA_RIGHT;
break;
case rtfQuadCenter:
info->fmt.dwMask |= PFM_ALIGNMENT;
info->fmt.wAlignment = PFA_CENTER;
break;
case rtfTabPos:
if (!(info->fmt.dwMask & PFM_TABSTOPS))
{
PARAFORMAT2 fmt;
fmt.cbSize = sizeof(fmt);
editor_get_selection_para_fmt( info->editor, &fmt );
memcpy(info->fmt.rgxTabs, fmt.rgxTabs,
fmt.cTabCount * sizeof(fmt.rgxTabs[0]));
info->fmt.cTabCount = fmt.cTabCount;
info->fmt.dwMask |= PFM_TABSTOPS;
}
if (info->fmt.cTabCount < MAX_TAB_STOPS && info->rtfParam < 0x1000000)
info->fmt.rgxTabs[info->fmt.cTabCount++] = info->rtfParam;
break;
case rtfKeep:
info->fmt.dwMask |= PFM_KEEP;
info->fmt.wEffects |= PFE_KEEP;
break;
case rtfNoWidowControl:
info->fmt.dwMask |= PFM_NOWIDOWCONTROL;
info->fmt.wEffects |= PFE_NOWIDOWCONTROL;
break;
case rtfKeepNext:
info->fmt.dwMask |= PFM_KEEPNEXT;
info->fmt.wEffects |= PFE_KEEPNEXT;
break;
case rtfSpaceAfter:
info->fmt.dwMask |= PFM_SPACEAFTER;
info->fmt.dySpaceAfter = info->rtfParam;
break;
case rtfSpaceBefore:
info->fmt.dwMask |= PFM_SPACEBEFORE;
info->fmt.dySpaceBefore = info->rtfParam;
break;
case rtfSpaceBetween:
info->fmt.dwMask |= PFM_LINESPACING;
if ((int)info->rtfParam > 0)
{
info->fmt.dyLineSpacing = info->rtfParam;
info->fmt.bLineSpacingRule = 3;
}
else
{
info->fmt.dyLineSpacing = info->rtfParam;
info->fmt.bLineSpacingRule = 4;
}
break;
case rtfSpaceMultiply:
info->fmt.dwMask |= PFM_LINESPACING;
info->fmt.dyLineSpacing = info->rtfParam * 20;
info->fmt.bLineSpacingRule = 5;
break;
case rtfParBullet:
info->fmt.dwMask |= PFM_NUMBERING;
info->fmt.wNumbering = PFN_BULLET;
break;
case rtfParSimple:
info->fmt.dwMask |= PFM_NUMBERING;
info->fmt.wNumbering = 2; /* FIXME: MSDN says it's not used ?? */
break;
case rtfBorderLeft:
info->borderType = RTFBorderParaLeft;
info->fmt.wBorders |= 1;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderRight:
info->borderType = RTFBorderParaRight;
info->fmt.wBorders |= 2;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderTop:
info->borderType = RTFBorderParaTop;
info->fmt.wBorders |= 4;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderBottom:
info->borderType = RTFBorderParaBottom;
info->fmt.wBorders |= 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderSingle:
info->fmt.wBorders &= ~0x700;
info->fmt.wBorders |= 1 << 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderThick:
info->fmt.wBorders &= ~0x700;
info->fmt.wBorders |= 2 << 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderShadow:
info->fmt.wBorders &= ~0x700;
info->fmt.wBorders |= 10 << 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderDouble:
info->fmt.wBorders &= ~0x700;
info->fmt.wBorders |= 7 << 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderDot:
info->fmt.wBorders &= ~0x700;
info->fmt.wBorders |= 11 << 8;
info->fmt.dwMask |= PFM_BORDER;
break;
case rtfBorderWidth:
{
int borderSide = info->borderType & RTFBorderSideMask;
RTFTable *tableDef = info->tableDef;
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;
}
info->fmt.wBorderWidth = info->rtfParam;
info->fmt.dwMask |= PFM_BORDER;
break;
}
case rtfBorderSpace:
info->fmt.wBorderSpace = info->rtfParam;
info->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;
}
case rtfRTLPar:
info->fmt.dwMask |= PFM_RTLPARA;
info->fmt.wEffects |= PFE_RTLPARA;
break;
case rtfLTRPar:
info->fmt.dwMask |= PFM_RTLPARA;
info->fmt.wEffects &= ~PFE_RTLPARA;
break;
}
}
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. */
PARAFORMAT2 *fmt = &info->editor->pCursors[0].para->fmt;
fmt->rgxTabs[cellNum] &= ~0x00FFFFFF;
fmt->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->row_start)
{
if (!info->nestingLevel && tableDef->row_start->nFlags & MEPF_ROWEND)
{
ME_Paragraph *para = para_next( tableDef->row_start );
tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
info->nestingLevel = 1;
}
table_insert_cell( info->editor, info->editor->pCursors );
}
}
else /* v1.0 - v3.0 */
{
ME_Paragraph *para = info->editor->pCursors[0].para;
if (para_in_table( para ) && 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_Run *run;
ME_Paragraph *para;
ME_Cell *cell;
int i;
if (!tableDef)
break;
RTFFlushOutputBuffer(info);
if (!info->editor->bEmulateVersion10) /* v4.1 */
{
if (!tableDef->row_start) break;
if (!info->nestingLevel && tableDef->row_start->nFlags & MEPF_ROWEND)
{
para = para_next( tableDef->row_start );
tableDef->row_start = table_insert_row_start_at_para( info->editor, para );
info->nestingLevel++;
}
para = tableDef->row_start;
cell = table_row_first_cell( para );
assert( cell && !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 default_size = 2000;
int right_boundary = default_size;
cell->nRightBoundary = right_boundary;
while (cell_next( cell ))
{
cell = cell_next( cell );
right_boundary += default_size;
cell->nRightBoundary = right_boundary;
}
para = table_insert_cell( info->editor, info->editor->pCursors );
cell = para_cell( para );
cell->nRightBoundary = right_boundary;
}
else
{
for (i = 0; i < tableDef->numCellsDefined; i++)
{
RTFCell *cellDef = &tableDef->cells[i];
cell->nRightBoundary = cellDef->rightBoundary;
ME_ApplyBorderProperties( info, &cell->border, cellDef->border );
cell = cell_next( cell );
if (!cell)
{
para = table_insert_cell( info->editor, info->editor->pCursors );
cell = para_cell( para );
}
}
/* Cell for table row delimiter is empty */
cell->nRightBoundary = tableDef->cells[i - 1].rightBoundary;
}
run = para_first_run( cell_first_para( cell ) );
if (info->editor->pCursors[0].run != run || info->editor->pCursors[0].nOffset)
{
int nOfs, nChars;
/* Delete inserted cells that aren't defined. */
info->editor->pCursors[1].run = run;
info->editor->pCursors[1].para = run->para;
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 = table_insert_row_end( info->editor, info->editor->pCursors );
para->fmt.dxOffset = abs(info->tableDef->gapH);
para->fmt.dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties( info, &para->border, tableDef->border );
info->nestingLevel--;
if (!info->nestingLevel)
{
if (info->canInheritInTbl) tableDef->row_start = 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 */
{
para = info->editor->pCursors[0].para;
para->fmt.dxOffset = info->tableDef->gapH;
para->fmt.dxStartIndent = info->tableDef->leftEdge;
ME_ApplyBorderProperties( info, &para->border, tableDef->border );
while (tableDef->numCellsInserted < tableDef->numCellsDefined)
{
WCHAR tab = '\t';
ME_InsertTextFromCursor(info->editor, 0, &tab, 1, info->style);
tableDef->numCellsInserted++;
}
para->fmt.cTabCount = min(tableDef->numCellsDefined, MAX_TAB_STOPS);
if (!tableDef->numCellsDefined) para->fmt.wEffects &= ~PFE_TABLE;
ME_InsertTextFromCursor(info->editor, 0, L"\r", 1, info->style);
tableDef->numCellsInserted = 0;
}
break;
}
case rtfTab:
case rtfPar:
if (info->editor->bEmulateVersion10) /* v1.0 - 3.0 */
{
ME_Paragraph *para;
RTFFlushOutputBuffer(info);
para = info->editor->pCursors[0].para;
if (para_in_table( para ))
{
/* 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 HRESULT insert_static_object(ME_TextEditor *editor, 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;
HRESULT hr = E_FAIL;
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;
}
else return E_FAIL;
stgm.pUnkForRelease = NULL;
fm.ptd = NULL;
fm.dwAspect = DVASPECT_CONTENT;
fm.lindex = -1;
fm.tymed = stgm.tymed;
if (OleCreateDefaultHandler(&CLSID_NULL, NULL, &IID_IOleObject, (void**)&lpObject) == S_OK &&
IRichEditOle_GetClientSite(editor->richole, &lpClientSite) == S_OK &&
IOleObject_SetClientSite(lpObject, lpClientSite) == S_OK &&
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;
hr = editor_insert_oleobj(editor, &reobject);
}
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 hr;
}
static void ME_RTFReadShpPictGroup( RTF_Info *info )
{
int level = 1;
for (;;)
{
RTFGetToken (info);
if (info->rtfClass == rtfEOF) return;
if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
{
if (--level == 0) break;
}
else if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
{
level++;
}
else
{
RTFRouteToken( info );
if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
level--;
}
}
RTFRouteToken( info ); /* feed "}" back to router */
return;
}
static DWORD read_hex_data( RTF_Info *info, BYTE **out )
{
DWORD read = 0, size = 1024;
BYTE *buf, val;
BOOL flip;
*out = NULL;
if (info->rtfClass != rtfText)
{
ERR("Called with incorrect token\n");
return 0;
}
buf = HeapAlloc( GetProcessHeap(), 0, size );
if (!buf) return 0;
val = info->rtfMajor;
for (flip = TRUE;; flip = !flip)
{
RTFGetToken( info );
if (info->rtfClass == rtfEOF)
{
HeapFree( GetProcessHeap(), 0, buf );
return 0;
}
if (info->rtfClass != rtfText) break;
if (flip)
{
if (read >= size)
{
size *= 2;
buf = HeapReAlloc( GetProcessHeap(), 0, buf, size );
if (!buf) return 0;
}
buf[read++] = RTFCharToHex(val) * 16 + RTFCharToHex(info->rtfMajor);
}
else
val = info->rtfMajor;
}
if (flip) FIXME("wrong hex string\n");
*out = buf;
return read;
}
static void ME_RTFReadPictGroup(RTF_Info *info)
{
SIZEL sz;
BYTE *buffer = NULL;
DWORD size = 0;
METAFILEPICT mfp;
HENHMETAFILE hemf;
HBITMAP hbmp;
enum gfxkind {gfx_unknown = 0, gfx_enhmetafile, gfx_metafile, gfx_dib} gfx = gfx_unknown;
int level = 1;
mfp.mm = MM_TEXT;
sz.cx = sz.cy = 0;
for (;;)
{
RTFGetToken( info );
if (info->rtfClass == rtfText)
{
if (level == 1)
{
if (!buffer)
size = read_hex_data( info, &buffer );
}
else
{
RTFSkipGroup( info );
}
} /* We potentially have a new token so fall through. */
if (info->rtfClass == rtfEOF) return;
if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
{
if (--level == 0) break;
continue;
}
if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
{
level++;
continue;
}
if (!RTFCheckCM( info, rtfControl, rtfPictAttr ))
{
RTFRouteToken( info );
if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
level--;
continue;
}
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 if (RTFCheckMM( info, rtfPictAttr, rtfPicWid ))
mfp.xExt = info->rtfParam;
else if (RTFCheckMM( info, rtfPictAttr, rtfPicHt ))
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);
}
if (buffer)
{
switch (gfx)
{
case gfx_enhmetafile:
if ((hemf = SetEnhMetaFileBits( size, buffer )))
insert_static_object( info->editor, hemf, NULL, &sz );
break;
case gfx_metafile:
if ((hemf = SetWinMetaFileBits( size, buffer, NULL, &mfp )))
insert_static_object( info->editor, 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)) )
insert_static_object( info->editor, NULL, hbmp, &sz );
ReleaseDC( 0, hdc );
break;
}
default:
break;
}
}
HeapFree( GetProcessHeap(), 0, buffer );
RTFRouteToken( info ); /* feed "}" back to router */
return;
}
/* 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_RTFReadParnumGroup( RTF_Info *info )
{
int level = 1, type = -1;
WORD indent = 0, start = 1;
WCHAR txt_before = 0, txt_after = 0;
for (;;)
{
RTFGetToken( info );
if (RTFCheckCMM( info, rtfControl, rtfDestination, rtfParNumTextBefore ) ||
RTFCheckCMM( info, rtfControl, rtfDestination, rtfParNumTextAfter ))
{
int loc = info->rtfMinor;
RTFGetToken( info );
if (info->rtfClass == rtfText)
{
if (loc == rtfParNumTextBefore)
txt_before = info->rtfMajor;
else
txt_after = info->rtfMajor;
continue;
}
/* falling through to catch EOFs and group level changes */
}
if (info->rtfClass == rtfEOF)
return;
if (RTFCheckCM( info, rtfGroup, rtfEndGroup ))
{
if (--level == 0) break;
continue;
}
if (RTFCheckCM( info, rtfGroup, rtfBeginGroup ))
{
level++;
continue;
}
/* Ignore non para-attr */
if (!RTFCheckCM( info, rtfControl, rtfParAttr ))
continue;
switch (info->rtfMinor)
{
case rtfParLevel: /* Para level is ignored */
case rtfParSimple:
break;
case rtfParBullet:
type = PFN_BULLET;
break;
case rtfParNumDecimal:
type = PFN_ARABIC;
break;
case rtfParNumULetter:
type = PFN_UCLETTER;
break;
case rtfParNumURoman:
type = PFN_UCROMAN;
break;
case rtfParNumLLetter:
type = PFN_LCLETTER;
break;
case rtfParNumLRoman:
type = PFN_LCROMAN;
break;
case rtfParNumIndent:
indent = info->rtfParam;
break;
case rtfParNumStartAt:
start = info->rtfParam;
break;
}
}
if (type != -1)
{
info->fmt.dwMask |= (PFM_NUMBERING | PFM_NUMBERINGSTART | PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB);
info->fmt.wNumbering = type;
info->fmt.wNumberingStart = start;
info->fmt.wNumberingStyle = PFNS_PAREN;
if (type != PFN_BULLET)
{
if (txt_before == 0 && txt_after == 0)
info->fmt.wNumberingStyle = PFNS_PLAIN;
else if (txt_after == '.')
info->fmt.wNumberingStyle = PFNS_PERIOD;
else if (txt_before == '(' && txt_after == ')')
info->fmt.wNumberingStyle = PFNS_PARENS;
}
info->fmt.wNumberingTab = indent;
}
TRACE("type %d indent %d start %d txt before %04x txt after %04x\n",
type, indent, start, txt_before, txt_after);
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;
LONG from, to;
int nUndoMode;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
BOOL invalidRTF = FALSE;
ME_Cursor *selStart, *selEnd;
LRESULT num_read = 0; /* bytes read for SF_TEXT, non-control chars inserted for SF_RTF */
TRACE("stream==%p editor==%p format==0x%lX\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_Paragraph *para = editor->pCursors->para;
if (para->nFlags & (MEPF_ROWSTART | MEPF_ROWEND))
{
para = para_next( para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[0].nOffset = 0;
}
editor->pCursors[1] = editor->pCursors[0];
}
else /* v1.0 - 3.0 */
{
if (editor->pCursors[0].run->nFlags & MERF_ENDPARA &&
para_in_table( editor->pCursors[0].para ))
return 0;
}
}
else
{
style = editor->pBuffer->pDefaultStyle;
ME_AddRefStyle(style);
set_selection_cursors(editor, 0, 0);
ME_InternalDeleteText(editor, &editor->pCursors[1],
ME_GetTextLength(editor), FALSE);
from = to = 0;
ME_ClearTempStyle(editor);
editor_set_default_para_fmt( editor, &editor->pCursors[0].para->fmt );
}
/* 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)
{
ME_Cursor start;
from = ME_GetCursorOfs(&editor->pCursors[0]);
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, rtfShpPict, ME_RTFReadShpPictGroup);
RTFSetDestinationCallback(&parser, rtfPict, ME_RTFReadPictGroup);
RTFSetDestinationCallback(&parser, rtfObject, ME_RTFReadObjectGroup);
RTFSetDestinationCallback(&parser, rtfParNumbering, ME_RTFReadParnumGroup);
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->row_start &&
(parser.nestingLevel > 0 || parser.canInheritInTbl))
{
/* Delete any incomplete table row at the end of the rich text. */
int nOfs, nChars;
ME_Paragraph *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->row_start;
ME_RTFSpecialCharHook(&parser);
}
else
{
para = parser.tableDef->row_start;
ME_RTFSpecialCharHook(&parser);
assert( para->nFlags & MEPF_ROWEND );
para = para_next( para );
}
editor->pCursors[1].para = para;
editor->pCursors[1].run = para_first_run( para );
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->row_start = NULL;
}
}
RTFDestroy(&parser);
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 && !(format & SFF_SELECTION)) {
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, lastcharCursor = *selEnd;
CHARFORMAT2W cf;
/* Set the final eop to the char fmt of the last char */
cf.cbSize = sizeof(cf);
cf.dwMask = CFM_ALL2;
ME_MoveCursorChars(editor, &lastcharCursor, -1, FALSE);
ME_GetCharFormat(editor, &lastcharCursor, &linebreakCursor, &cf);
set_selection_cursors(editor, newto, -1);
ME_SetSelectionCharFormat(editor, &cf);
set_selection_cursors(editor, newto, newto);
ME_MoveCursorChars(editor, &linebreakCursor, -linebreakSize, FALSE);
ME_GetTextW(editor, lastchar, 2, &linebreakCursor, linebreakSize, FALSE, FALSE);
if (lastchar[0] == '\r' && (lastchar[1] == '\n' || lastchar[1] == '\0')) {
ME_InternalDeleteText(editor, &linebreakCursor, linebreakSize, FALSE);
}
}
}
to = ME_GetCursorOfs(&editor->pCursors[0]);
num_read = to - from;
style = parser.style;
}
else if (format & SF_TEXT)
{
num_read = ME_StreamInText(editor, format, &inStream, style);
to = ME_GetCursorOfs(&editor->pCursors[0]);
}
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
set_selection_cursors(editor, 0, 0);
cursor_from_char_ofs( editor, from, &start );
ME_UpdateLinkAttribute(editor, &start, to - from);
}
/* 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, FALSE);
if (!(format & SFF_SELECTION)) {
ME_ClearTempStyle(editor);
}
ME_SendSelChange(editor);
ME_SendRequestResize(editor, FALSE);
return num_read;
}
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, TRUE);
}
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%08lx, chrg->cpMin==%ld, chrg->cpMax==%ld text==%s\n",
flags, chrg->cpMin, chrg->cpMax, debugstr_w(text));
if (flags & ~(FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD))
FIXME("Flags 0x%08lx 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)
{
cursor_from_char_ofs( editor, nMin - 1, &cursor );
wLastChar = *get_text( cursor.run, cursor.nOffset );
ME_MoveCursorChars(editor, &cursor, 1, FALSE);
}
else cursor_from_char_ofs( editor, nMin, &cursor );
while (cursor.run && ME_GetCursorOfs(&cursor) + nLen <= nMax)
{
ME_Run *run = cursor.run;
int nCurStart = cursor.nOffset;
int nMatched = 0;
while (run && ME_CharCompare( *get_text( run, nCurStart + nMatched ), text[nMatched], (flags & FR_MATCHCASE)))
{
if ((flags & FR_WHOLEWORD) && iswalnum(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_Run *next_run = run;
int nNextStart = nCurStart;
WCHAR wNextChar;
/* Check to see if next character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nCurStart + nMatched == run->len)
{
next_run = run_next_all_paras( run );
nNextStart = -nMatched;
}
if (next_run)
wNextChar = *get_text( next_run, nNextStart + nMatched );
else
wNextChar = ' ';
if (iswalnum(wNextChar))
break;
}
cursor.nOffset += cursor.para->nCharOfs + cursor.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 == run->len)
{
run = run_next_all_paras( run );
nCurStart = -nMatched;
}
}
if (run)
wLastChar = *get_text( run, nCurStart + nMatched );
else
wLastChar = ' ';
cursor.nOffset++;
if (cursor.nOffset == cursor.run->len)
{
if (run_next_all_paras( cursor.run ))
{
cursor.run = run_next_all_paras( cursor.run );
cursor.para = cursor.run->para;
cursor.nOffset = 0;
}
else
cursor.run = NULL;
}
}
}
else /* Backward search */
{
/* If possible, find the character after where the search ends */
if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
{
cursor_from_char_ofs( editor, nMax + 1, &cursor );
wLastChar = *get_text( cursor.run, cursor.nOffset );
ME_MoveCursorChars(editor, &cursor, -1, FALSE);
}
else cursor_from_char_ofs( editor, nMax, &cursor );
while (cursor.run && ME_GetCursorOfs(&cursor) - nLen >= nMin)
{
ME_Run *run = cursor.run;
ME_Paragraph *para = cursor.para;
int nCurEnd = cursor.nOffset;
int nMatched = 0;
if (nCurEnd == 0 && run_prev_all_paras( run ))
{
run = run_prev_all_paras( run );
para = run->para;
nCurEnd = run->len;
}
while (run && ME_CharCompare( *get_text( run, nCurEnd - nMatched - 1 ),
text[nLen - nMatched - 1], (flags & FR_MATCHCASE) ))
{
if ((flags & FR_WHOLEWORD) && iswalnum(wLastChar))
break;
nMatched++;
if (nMatched == nLen)
{
ME_Run *prev_run = run;
int nPrevEnd = nCurEnd;
WCHAR wPrevChar;
int nStart;
/* Check to see if previous character is a whitespace */
if (flags & FR_WHOLEWORD)
{
if (nPrevEnd - nMatched == 0)
{
prev_run = run_prev_all_paras( run );
if (prev_run) nPrevEnd = prev_run->len + nMatched;
}
if (prev_run) wPrevChar = *get_text( prev_run, nPrevEnd - nMatched - 1 );
else wPrevChar = ' ';
if (iswalnum(wPrevChar))
break;
}
nStart = para->nCharOfs + 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)
{
if (run_prev_all_paras( run ))
{
run = run_prev_all_paras( run );
para = run->para;
}
/* Don't care about pCurItem becoming NULL here; it's already taken
* care of in the exterior loop condition */
nCurEnd = run->len + nMatched;
}
}
if (run)
wLastChar = *get_text( run, nCurEnd - nMatched - 1 );
else
wLastChar = ' ';
cursor.nOffset--;
if (cursor.nOffset < 0)
{
if (run_prev_all_paras( cursor.run ) )
{
cursor.run = run_prev_all_paras( cursor.run );
cursor.para = cursor.run->para;
cursor.nOffset = cursor.run->len;
}
else
cursor.run = NULL;
}
}
}
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%08lx not supported\n", ex->flags & ~(GT_SELECTION | GT_USECRLF));
if (ex->flags & GT_SELECTION)
{
LONG 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 == CP_UNICODE)
{
return ME_GetTextW(editor, (LPWSTR)pText, ex->cb / sizeof(WCHAR) - 1,
&start, nChars, ex->flags & GT_USECRLF, FALSE);
}
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, FALSE);
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 get_text_range( ME_TextEditor *editor, WCHAR *buffer,
const ME_Cursor *start, int len )
{
if (!buffer) return 0;
return ME_GetTextW( editor, buffer, INT_MAX, start, len, FALSE, FALSE );
}
int set_selection( ME_TextEditor *editor, int to, int from )
{
int end;
TRACE("%d - %d\n", to, from );
if (!editor->bHideSelection) ME_InvalidateSelection( editor );
end = set_selection_cursors( editor, to, from );
editor_ensure_visible( editor, &editor->pCursors[0] );
if (!editor->bHideSelection) ME_InvalidateSelection( editor );
update_caret( editor );
ME_SendSelChange( editor );
return end;
}
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 HRESULT paste_rtf(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
{
EDITSTREAM es;
ME_GlobalDestStruct gds;
HRESULT hr;
gds.hData = med->u.hGlobal;
gds.nLength = 0;
es.dwCookie = (DWORD_PTR)&gds;
es.pfnCallback = ME_ReadFromHGLOBALRTF;
hr = ME_StreamIn( editor, SF_RTF | SFF_SELECTION, &es, FALSE ) == 0 ? E_FAIL : S_OK;
ReleaseStgMedium( med );
return hr;
}
static HRESULT paste_text(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
{
EDITSTREAM es;
ME_GlobalDestStruct gds;
HRESULT hr;
gds.hData = med->u.hGlobal;
gds.nLength = 0;
es.dwCookie = (DWORD_PTR)&gds;
es.pfnCallback = ME_ReadFromHGLOBALUnicode;
hr = ME_StreamIn( editor, SF_TEXT | SF_UNICODE | SFF_SELECTION, &es, FALSE ) == 0 ? E_FAIL : S_OK;
ReleaseStgMedium( med );
return hr;
}
static HRESULT paste_emf(ME_TextEditor *editor, FORMATETC *fmt, STGMEDIUM *med)
{
HRESULT hr;
SIZEL sz = {0, 0};
hr = insert_static_object( editor, med->u.hEnhMetaFile, NULL, &sz );
if (SUCCEEDED(hr))
{
ME_CommitUndo( editor );
ME_UpdateRepaint( editor, FALSE );
}
else
ReleaseStgMedium( med );
return hr;
}
static struct paste_format
{
FORMATETC fmt;
HRESULT (*paste)(ME_TextEditor *, FORMATETC *, STGMEDIUM *);
const WCHAR *name;
} paste_formats[] =
{
{{ -1, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }, paste_rtf, L"Rich Text Format" },
{{ CF_UNICODETEXT, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }, paste_text },
{{ CF_ENHMETAFILE, NULL, DVASPECT_CONTENT, -1, TYMED_ENHMF }, paste_emf },
{{ 0 }}
};
static void init_paste_formats(void)
{
struct paste_format *format;
static int done;
if (!done)
{
for (format = paste_formats; format->fmt.cfFormat; format++)
{
if (format->name)
format->fmt.cfFormat = RegisterClipboardFormatW( format->name );
}
done = 1;
}
}
static BOOL paste_special(ME_TextEditor *editor, UINT cf, REPASTESPECIAL *ps, BOOL check_only)
{
HRESULT hr;
STGMEDIUM med;
struct paste_format *format;
IDataObject *data;
/* Protect read-only edit control from modification */
if (editor->props & TXTBIT_READONLY)
{
if (!check_only) editor_beep( editor, MB_ICONERROR );
return FALSE;
}
init_paste_formats();
if (ps && ps->dwAspect != DVASPECT_CONTENT)
FIXME("Ignoring aspect %lx\n", ps->dwAspect);
hr = OleGetClipboard( &data );
if (hr != S_OK) return FALSE;
if (cf == CF_TEXT) cf = CF_UNICODETEXT;
hr = S_FALSE;
for (format = paste_formats; format->fmt.cfFormat; format++)
{
if (cf && cf != format->fmt.cfFormat) continue;
hr = IDataObject_QueryGetData( data, &format->fmt );
if (hr == S_OK)
{
if (!check_only)
{
hr = IDataObject_GetData( data, &format->fmt, &med );
if (hr != S_OK) goto done;
hr = format->paste( editor, &format->fmt, &med );
}
break;
}
}
done:
IDataObject_Release( data );
return hr == S_OK;
}
static HRESULT editor_copy( ME_TextEditor *editor, ME_Cursor *start, int chars, IDataObject **data_out )
{
IDataObject *data = NULL;
HRESULT hr = S_OK;
if (editor->lpOleCallback)
{
CHARRANGE range;
range.cpMin = ME_GetCursorOfs( start );
range.cpMax = range.cpMin + chars;
hr = IRichEditOleCallback_GetClipboardData( editor->lpOleCallback, &range, RECO_COPY, &data );
}
if (FAILED( hr ) || !data)
hr = ME_GetDataObject( editor, start, chars, &data );
if (SUCCEEDED( hr ))
{
if (data_out)
*data_out = data;
else
{
hr = OleSetClipboard( data );
IDataObject_Release( data );
}
}
return hr;
}
HRESULT editor_copy_or_cut( ME_TextEditor *editor, BOOL cut, ME_Cursor *start, int count,
IDataObject **data_out )
{
HRESULT hr;
if (cut && (editor->props & TXTBIT_READONLY))
{
return E_ACCESSDENIED;
}
hr = editor_copy( editor, start, count, data_out );
if (SUCCEEDED(hr) && cut)
{
ME_InternalDeleteText( editor, start, count, FALSE );
ME_CommitUndo( editor );
ME_UpdateRepaint( editor, TRUE );
}
return hr;
}
static BOOL copy_or_cut( ME_TextEditor *editor, BOOL cut )
{
HRESULT hr;
LONG offs, count;
int start_cursor = ME_GetSelectionOfs( editor, &offs, &count );
ME_Cursor *sel_start = &editor->pCursors[start_cursor];
if (editor->password_char) return FALSE;
count -= offs;
hr = editor_copy_or_cut( editor, cut, sel_start, count, NULL );
if (FAILED( hr )) editor_beep( editor, MB_ICONERROR );
return SUCCEEDED( hr );
}
static void ME_UpdateSelectionLinkAttribute(ME_TextEditor *editor)
{
ME_Paragraph *start_para, *end_para;
ME_Cursor *from, *to, start;
int num_chars;
if (!editor->AutoURLDetect_bEnable) return;
ME_GetSelection(editor, &from, &to);
/* Find paragraph previous to the one that contains start cursor */
start_para = from->para;
if (para_prev( start_para )) start_para = para_prev( start_para );
/* Find paragraph that contains end cursor */
end_para = para_next( to->para );
start.para = start_para;
start.run = para_first_run( start_para );
start.nOffset = 0;
num_chars = end_para->nCharOfs - start_para->nCharOfs;
ME_UpdateLinkAttribute( editor, &start, num_chars );
}
static BOOL handle_enter(ME_TextEditor *editor)
{
BOOL shift_is_down = GetKeyState(VK_SHIFT) & 0x8000;
if (editor->props & TXTBIT_MULTILINE)
{
ME_Cursor cursor = editor->pCursors[0];
ME_Paragraph *para = cursor.para;
LONG from, to;
ME_Style *style, *eop_style;
if (editor->props & TXTBIT_READONLY)
{
editor_beep( editor, MB_ICONERROR );
return TRUE;
}
ME_GetSelectionOfs(editor, &from, &to);
if (editor->nTextLimit > ME_GetTextLength(editor) - (to-from))
{
if (!editor->bEmulateVersion10) /* v4.1 */
{
if (para->nFlags & MEPF_ROWEND)
{
/* Add a new table row after this row. */
para = table_append_row( editor, para );
para = para_next( para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitUndo(editor);
ME_UpdateRepaint(editor, FALSE);
return TRUE;
}
else if (para == editor->pCursors[1].para &&
cursor.nOffset + cursor.run->nCharOfs == 0 &&
para_prev( para ) && para_prev( para )->nFlags & MEPF_ROWSTART &&
!para_prev( para )->nCharOfs)
{
/* Insert a newline before the table. */
para = para_prev( para );
para->nFlags &= ~MEPF_ROWSTART;
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor( editor, 0, L"\r", 1, editor->pCursors[0].run->style );
para = editor_first_para( editor );
editor_set_default_para_fmt( editor, &para->fmt );
para->nFlags = 0;
para_mark_rewrap( editor, para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[1] = editor->pCursors[0];
para_next( para )->nFlags |= MEPF_ROWSTART;
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor, FALSE);
return TRUE;
}
}
else /* v1.0 - 3.0 */
{
ME_Paragraph *para = cursor.para;
if (para_in_table( para ))
{
if (cursor.run->nFlags & MERF_ENDPARA)
{
if (from == to)
{
ME_ContinueCoalescingTransaction(editor);
para = table_append_row( editor, para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor, FALSE);
return TRUE;
}
}
else
{
ME_ContinueCoalescingTransaction(editor);
if (cursor.run->nCharOfs + cursor.nOffset == 0 &&
para_prev( para ) && !para_in_table( para_prev( para ) ))
{
/* Insert newline before table */
cursor.run = para_end_run( para_prev( para ) );
if (cursor.run)
{
editor->pCursors[0].run = cursor.run;
editor->pCursors[0].para = para_prev( para );
}
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
ME_InsertTextFromCursor( editor, 0, L"\r", 1, editor->pCursors[0].run->style );
}
else
{
editor->pCursors[1] = editor->pCursors[0];
para = table_append_row( editor, para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
ME_CommitCoalescingUndo(editor);
ME_UpdateRepaint(editor, FALSE);
return TRUE;
}
}
}
style = style_get_insert_style( editor, editor->pCursors );
/* Normally the new eop style is the insert style, however in a list it is copied from the existing
eop style (this prevents the list label style changing when the new eop is inserted).
No extra ref is taken here on eop_style. */
if (para->fmt.wNumbering)
eop_style = para->eop_run->style;
else
eop_style = style;
ME_ContinueCoalescingTransaction(editor);
if (shift_is_down)
ME_InsertEndRowFromCursor(editor, 0);
else
if (!editor->bEmulateVersion10)
ME_InsertTextFromCursor(editor, 0, L"\r", 1, eop_style);
else
ME_InsertTextFromCursor(editor, 0, L"\r\n", 2, eop_style);
ME_CommitCoalescingUndo(editor);
SetCursor(NULL);
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor, FALSE);
ME_SaveTempStyle(editor, style); /* set the temp insert style for the new para */
ME_ReleaseStyle(style);
}
return TRUE;
}
return FALSE;
}
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->props & TXTBIT_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;
table_move_from_row_start( editor );
ME_UpdateSelectionLinkAttribute(editor);
ME_UpdateRepaint(editor, FALSE);
ME_SendRequestResize(editor, FALSE);
return TRUE;
case VK_RETURN:
if (!editor->bEmulateVersion10)
return handle_enter(editor);
break;
case 'A':
if (ctrl_is_down)
{
set_selection( editor, 0, -1 );
return TRUE;
}
break;
case 'V':
if (ctrl_is_down)
return paste_special( editor, 0, NULL, FALSE );
break;
case 'C':
case 'X':
if (ctrl_is_down)
return copy_or_cut(editor, nKey == 'X');
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 handle_wm_char( ME_TextEditor *editor, WCHAR wstr, LPARAM flags )
{
if (editor->bMouseCaptured)
return 0;
if (editor->props & TXTBIT_READONLY)
{
editor_beep( editor, MB_ICONERROR );
return 0; /* FIXME really 0 ? */
}
if (editor->bEmulateVersion10 && wstr == '\r')
handle_enter(editor);
if ((unsigned)wstr >= ' ' || wstr == '\t')
{
ME_Cursor cursor = editor->pCursors[0];
ME_Paragraph *para = cursor.para;
LONG 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))
{
BOOL selected_row = FALSE;
if (ME_IsSelection(editor) &&
cursor.run->nCharOfs + cursor.nOffset == 0 &&
to == ME_GetCursorOfs(&editor->pCursors[0]) && para_prev( para ))
{
para = para_prev( para );
selected_row = TRUE;
}
if (para_in_table( para ))
{
table_handle_tab( editor, selected_row );
ME_CommitUndo(editor);
return 0;
}
}
else if (!editor->bEmulateVersion10) /* v4.1 */
{
if (para->nFlags & MEPF_ROWEND)
{
if (from == to)
{
para = para_next( para );
if (para->nFlags & MEPF_ROWSTART) para = para_next( para );
editor->pCursors[0].para = para;
editor->pCursors[0].run = para_first_run( para );
editor->pCursors[0].nOffset = 0;
editor->pCursors[1] = editor->pCursors[0];
}
}
}
else /* v1.0 - 3.0 */
{
if (para_in_table( para ) && cursor.run->nFlags & MERF_ENDPARA && from == to)
{
/* Text should not be inserted at the end of the table. */
editor_beep( editor, -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 = style_get_insert_style( editor, editor->pCursors );
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, FALSE);
}
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 is_link( ME_Run *run )
{
return (run->style->fmt.dwMask & CFM_LINK) && (run->style->fmt.dwEffects & CFE_LINK);
}
void editor_set_cursor( ME_TextEditor *editor, int x, int y )
{
ME_Cursor pos;
static HCURSOR cursor_arrow, cursor_hand, cursor_ibeam, cursor_reverse;
HCURSOR cursor;
if (!cursor_arrow)
{
cursor_arrow = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_ARROW ) );
cursor_hand = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_HAND ) );
cursor_ibeam = LoadCursorW( NULL, MAKEINTRESOURCEW( IDC_IBEAM ) );
cursor_reverse = LoadCursorW( dll_instance, MAKEINTRESOURCEW( OCR_REVERSE ) );
}
cursor = cursor_ibeam;
if ((editor->nSelectionType == stLine && editor->bMouseCaptured) ||
(!editor->bEmulateVersion10 && y < editor->rcFormat.top && x < editor->rcFormat.left))
cursor = cursor_reverse;
else if (y < editor->rcFormat.top || y > editor->rcFormat.bottom)
{
if (editor->bEmulateVersion10) cursor = cursor_arrow;
else cursor = cursor_ibeam;
}
else if (x < editor->rcFormat.left) cursor = cursor_reverse;
else if (cursor_from_coords( editor, x, y, &pos ))
{
ME_Run *run = pos.run;
if (is_link( run )) cursor = cursor_hand;
else if (ME_IsSelection( editor ))
{
LONG start, end;
int offset = ME_GetCursorOfs( &pos );
ME_GetSelectionOfs( editor, &start, &end );
if (start <= offset && end >= offset) cursor = cursor_arrow;
}
}
ITextHost_TxSetCursor( editor->texthost, cursor, cursor == cursor_ibeam );
}
static LONG ME_GetSelectionType(ME_TextEditor *editor)
{
LONG sel_type = SEL_EMPTY;
LONG start, end;
ME_GetSelectionOfs(editor, &start, &end);
if (start == end)
sel_type = SEL_EMPTY;
else
{
LONG object_count = 0, character_count = 0;
int i;
for (i = 0; i < end - start; i++)
{
ME_Cursor cursor;
cursor_from_char_ofs( editor, start + i, &cursor );
if (cursor.run->reobj) object_count++;
else character_count++;
if (character_count >= 2 && object_count >= 2)
return (SEL_TEXT | SEL_MULTICHAR | SEL_OBJECT | SEL_MULTIOBJECT);
}
if (character_count)
{
sel_type |= SEL_TEXT;
if (character_count >= 2)
sel_type |= SEL_MULTICHAR;
}
if (object_count)
{
sel_type |= SEL_OBJECT;
if (object_count >= 2)
sel_type |= SEL_MULTIOBJECT;
}
}
return sel_type;
}
static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
{
CHARRANGE selrange;
HMENU menu;
int seltype;
HWND hwnd, parent;
if (!editor->lpOleCallback || !editor->have_texthost2) return FALSE;
if (FAILED( ITextHost2_TxGetWindow( editor->texthost, &hwnd ))) return FALSE;
parent = GetParent( hwnd );
if (!parent) parent = hwnd;
ME_GetSelectionOfs( editor, &selrange.cpMin, &selrange.cpMax );
seltype = ME_GetSelectionType( editor );
if (SUCCEEDED( IRichEditOleCallback_GetContextMenu( editor->lpOleCallback, seltype, NULL, &selrange, &menu ) ))
{
TrackPopupMenu( menu, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, parent, NULL );
DestroyMenu( menu );
}
return TRUE;
}
ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
{
ME_TextEditor *ed = heap_alloc(sizeof(*ed));
int i;
LONG selbarwidth;
HRESULT hr;
ed->sizeWindow.cx = ed->sizeWindow.cy = 0;
if (ITextHost_QueryInterface( texthost, &IID_ITextHost2, (void **)&ed->texthost ) == S_OK)
{
ITextHost_Release( texthost );
ed->have_texthost2 = TRUE;
}
else
{
ed->texthost = (ITextHost2 *)texthost;
ed->have_texthost2 = FALSE;
}
ed->bEmulateVersion10 = bEmulateVersion10;
ed->in_place_active = FALSE;
ed->total_rows = 0;
ITextHost_TxGetPropertyBits( ed->texthost, TXTBIT_RICHTEXT | TXTBIT_MULTILINE | TXTBIT_READONLY |
TXTBIT_USEPASSWORD | TXTBIT_HIDESELECTION | TXTBIT_SAVESELECTION |
TXTBIT_AUTOWORDSEL | TXTBIT_VERTICAL | TXTBIT_WORDWRAP | TXTBIT_ALLOWBEEP |
TXTBIT_DISABLEDRAG,
&ed->props );
ITextHost_TxGetScrollBars( ed->texthost, &ed->scrollbars );
ed->pBuffer = ME_MakeText();
ed->nZoomNumerator = ed->nZoomDenominator = 0;
ed->nAvailWidth = 0; /* wrap to client area */
list_init( &ed->style_list );
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 = heap_alloc(ed->nCursors * sizeof(*ed->pCursors));
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->nEventMask = 0;
ed->nModifyStep = 0;
ed->nTextLimit = TEXT_LIMIT_DEFAULT;
list_init( &ed->undo_stack );
list_init( &ed->redo_stack );
ed->nUndoStackSize = 0;
ed->nUndoLimit = STACK_SIZE_DEFAULT;
ed->nUndoMode = umAddToUndo;
ed->undo_ctl_state = undoActive;
ed->nParagraphs = 1;
ed->nLastSelStart = ed->nLastSelEnd = 0;
ed->last_sel_start_para = ed->last_sel_end_para = ed->pCursors[0].para;
ed->bHideSelection = FALSE;
ed->pfnWordBreak = NULL;
ed->richole = NULL;
ed->lpOleCallback = NULL;
ed->mode = TM_MULTILEVELUNDO | TM_MULTICODEPAGE;
ed->mode |= (ed->props & TXTBIT_RICHTEXT) ? TM_RICHTEXT : TM_PLAINTEXT;
ed->AutoURLDetect_bEnable = FALSE;
ed->bHaveFocus = FALSE;
ed->bMouseCaptured = FALSE;
ed->caret_hidden = FALSE;
ed->caret_height = 0;
for (i=0; i<HFONT_CACHE_SIZE; i++)
{
ed->pFontCache[i].nRefs = 0;
ed->pFontCache[i].nAge = 0;
ed->pFontCache[i].hFont = NULL;
}
ME_CheckCharOffsets(ed);
SetRectEmpty(&ed->rcFormat);
hr = ITextHost_TxGetSelectionBarWidth( ed->texthost, &selbarwidth );
/* FIXME: Convert selbarwidth from HIMETRIC to pixels */
if (hr == S_OK && selbarwidth) ed->selofs = SELECTIONBAR_WIDTH;
else ed->selofs = 0;
ed->nSelectionType = stPosition;
ed->password_char = 0;
if (ed->props & TXTBIT_USEPASSWORD)
ITextHost_TxGetPasswordChar( ed->texthost, &ed->password_char );
ed->bWordWrap = (ed->props & TXTBIT_WORDWRAP) && (ed->props & TXTBIT_MULTILINE);
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->vert_sb_enabled = 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;
ed->horz_sb_enabled = 0;
if (ed->scrollbars & ES_DISABLENOSCROLL)
{
if (ed->scrollbars & WS_VSCROLL)
{
ITextHost_TxSetScrollRange( ed->texthost, SB_VERT, 0, 1, TRUE );
ITextHost_TxEnableScrollBar( ed->texthost, SB_VERT, ESB_DISABLE_BOTH );
}
if (ed->scrollbars & WS_HSCROLL)
{
ITextHost_TxSetScrollRange( ed->texthost, SB_HORZ, 0, 1, TRUE );
ITextHost_TxEnableScrollBar( ed->texthost, SB_HORZ, ESB_DISABLE_BOTH );
}
}
ed->wheel_remain = 0;
ed->back_style = TXTBACK_OPAQUE;
ITextHost_TxGetBackStyle( ed->texthost, &ed->back_style );
list_init( &ed->reobj_list );
OleInitialize(NULL);
return ed;
}
void ME_DestroyEditor(ME_TextEditor *editor)
{
ME_DisplayItem *p = editor->pBuffer->pFirst, *pNext = NULL;
ME_Style *s, *cursor2;
int i;
ME_ClearTempStyle(editor);
ME_EmptyUndoStack(editor);
editor->pBuffer->pFirst = NULL;
while(p)
{
pNext = p->next;
if (p->type == diParagraph)
para_destroy( editor, &p->member.para );
else
ME_DestroyDisplayItem(p);
p = pNext;
}
LIST_FOR_EACH_ENTRY_SAFE( s, cursor2, &editor->style_list, ME_Style, entry )
ME_DestroyStyle( s );
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->lpOleCallback)
IRichEditOleCallback_Release(editor->lpOleCallback);
OleUninitialize();
heap_free(editor->pBuffer);
heap_free(editor->pCursors);
heap_free(editor);
}
static inline int get_default_line_height( ME_TextEditor *editor )
{
int height = 0;
if (editor->pBuffer && editor->pBuffer->pDefaultStyle)
height = editor->pBuffer->pDefaultStyle->tm.tmHeight;
if (height <= 0) height = 24;
return height;
}
static inline int calc_wheel_change( int *remain, int amount_per_click )
{
int change = amount_per_click * (float)*remain / WHEEL_DELTA;
*remain -= WHEEL_DELTA * change / amount_per_click;
return change;
}
void link_notify(ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam)
{
int x,y;
ME_Cursor cursor; /* The start of the clicked text. */
ME_Run *run;
ENLINK info;
x = (short)LOWORD(lParam);
y = (short)HIWORD(lParam);
if (!cursor_from_coords( editor, x, y, &cursor )) return;
if (is_link( cursor.run ))
{ /* 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;
/* find the first contiguous run with CFE_LINK set */
info.chrg.cpMin = ME_GetCursorOfs(&cursor);
run = cursor.run;
while ((run = run_prev( run )) && is_link( run ))
info.chrg.cpMin -= run->len;
/* find the last contiguous run with CFE_LINK set */
info.chrg.cpMax = ME_GetCursorOfs(&cursor) + cursor.run->len;
run = cursor.run;
while ((run = run_next( run )) && is_link( run ))
info.chrg.cpMax += run->len;
ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
}
}
void ME_ReplaceSel(ME_TextEditor *editor, BOOL can_undo, const WCHAR *str, int len)
{
LONG from, to;
int nStartCursor;
ME_Style *style;
nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
style = ME_GetSelectionInsertStyle(editor);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_InsertTextFromCursor(editor, 0, str, 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 && str[len-1] == '\n')
ME_ClearTempStyle(editor);
ME_CommitUndo(editor);
ME_UpdateSelectionLinkAttribute(editor);
if (!can_undo)
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor, FALSE);
}
static void ME_SetText(ME_TextEditor *editor, void *text, BOOL unicode)
{
LONG codepage = unicode ? CP_UNICODE : CP_ACP;
int textLen;
LPWSTR wszText = ME_ToUnicode(codepage, text, &textLen);
ME_InsertTextFromCursor(editor, 0, wszText, textLen, editor->pBuffer->pDefaultStyle);
ME_EndToUnicode(codepage, wszText);
}
static LRESULT handle_EM_SETCHARFORMAT( ME_TextEditor *editor, WPARAM flags, const CHARFORMAT2W *fmt_in )
{
CHARFORMAT2W fmt;
BOOL changed = TRUE;
ME_Cursor start, end;
if (!cfany_to_cf2w( &fmt, fmt_in )) return 0;
if (flags & SCF_ALL)
{
if (editor->mode & TM_PLAINTEXT)
{
ME_SetDefaultCharFormat( editor, &fmt );
}
else
{
ME_SetCursorToStart( editor, &start );
ME_SetCharFormat( editor, &start, NULL, &fmt );
editor->nModifyStep = 1;
}
}
else if (flags & SCF_SELECTION)
{
if (editor->mode & TM_PLAINTEXT) return 0;
if (flags & SCF_WORD)
{
end = editor->pCursors[0];
ME_MoveCursorWords( editor, &end, +1 );
start = end;
ME_MoveCursorWords( editor, &start, -1 );
ME_SetCharFormat( editor, &start, &end, &fmt );
}
changed = ME_IsSelection( editor );
ME_SetSelectionCharFormat( editor, &fmt );
if (changed) editor->nModifyStep = 1;
}
else /* SCF_DEFAULT */
{
ME_SetDefaultCharFormat( editor, &fmt );
}
ME_CommitUndo( editor );
if (changed)
{
ME_WrapMarkedParagraphs( editor );
ME_UpdateScrollBar( editor );
}
return 1;
}
#define UNSUPPORTED_MSG(e) \
case e: \
FIXME(#e ": stub\n"); \
*phresult = S_FALSE; \
return 0;
/* Handle messages for windowless and windowed 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 editor_handle_message( ME_TextEditor *editor, UINT msg, WPARAM wParam,
LPARAM lParam, 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_SETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_SETEDITSTYLE)
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 EM_EMPTYUNDOBUFFER:
ME_EmptyUndoStack(editor);
return 0;
case EM_GETSEL:
{
/* Note: wParam/lParam can be NULL */
LONG from, to;
LONG *pfrom = wParam ? (LONG *)wParam : &from;
LONG *pto = lParam ? (LONG *)lParam : &to;
ME_GetSelectionOfs(editor, pfrom, 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 = (%ld,%ld)\n", pRange->cpMin, pRange->cpMax);
return 0;
}
case EM_SETUNDOLIMIT:
{
editor_enable_undo(editor);
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 !list_empty( &editor->undo_stack );
case EM_CANREDO:
return !list_empty( &editor->redo_stack );
case WM_UNDO: /* FIXME: actually not the same */
case EM_UNDO:
return ME_Undo(editor);
case EM_REDO:
return ME_Redo(editor);
case EM_SETFONTSIZE:
{
CHARFORMAT2W cf;
LONG tmp_size, size;
BOOL is_increase = ((LONG)wParam > 0);
if (editor->mode & TM_PLAINTEXT)
return FALSE;
cf.cbSize = sizeof(cf);
cf.dwMask = CFM_SIZE;
ME_GetSelectionCharFormat(editor, &cf);
tmp_size = (cf.yHeight / 20) + wParam;
if (tmp_size <= 1)
size = 1;
else if (tmp_size > 12 && tmp_size < 28 && tmp_size % 2)
size = tmp_size + (is_increase ? 1 : -1);
else if (tmp_size > 28 && tmp_size < 36)
size = is_increase ? 36 : 28;
else if (tmp_size > 36 && tmp_size < 48)
size = is_increase ? 48 : 36;
else if (tmp_size > 48 && tmp_size < 72)
size = is_increase ? 72 : 48;
else if (tmp_size > 72 && tmp_size < 80)
size = is_increase ? 80 : 72;
else if (tmp_size > 80 && tmp_size < 1638)
size = 10 * (is_increase ? (tmp_size / 10 + 1) : (tmp_size / 10));
else if (tmp_size >= 1638)
size = 1638;
else
size = tmp_size;
cf.yHeight = size * 20; /* convert twips to points */
ME_SetSelectionCharFormat(editor, &cf);
ME_CommitUndo(editor);
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
return TRUE;
}
case EM_SETSEL:
{
return set_selection( editor, wParam, lParam );
}
case EM_SETSCROLLPOS:
{
POINT *point = (POINT *)lParam;
scroll_abs( editor, point->x, point->y, TRUE );
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:
{
CHARRANGE range = *(CHARRANGE *)lParam;
return set_selection( editor, range.cpMin, range.cpMax );
}
case EM_SETTEXTEX:
{
LPWSTR wszText;
SETTEXTEX *pStruct = (SETTEXTEX *)wParam;
LONG from, to;
int len;
ME_Style *style;
BOOL bRtf, bUnicode, bSelection, bUTF8;
int oldModify = editor->nModifyStep;
static const char utf8_bom[] = {0xef, 0xbb, 0xbf};
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 == CP_UNICODE;
bUTF8 = (lParam && (!strncmp((char *)lParam, utf8_bom, 3)));
TRACE("EM_SETTEXTEX - %s, flags %ld, 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 doesn't include the rtf control
* characters, only the actual text. */
len = lParam ? strlen((char *)lParam) : 0;
}
} else {
if (bUTF8 && !bUnicode) {
wszText = ME_ToUnicode(CP_UTF8, (void *)(lParam+3), &len);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_EndToUnicode(CP_UTF8, wszText);
} else {
wszText = ME_ToUnicode(pStruct->codepage, (void *)lParam, &len);
ME_InsertTextFromCursor(editor, 0, wszText, len, style);
ME_EndToUnicode(pStruct->codepage, wszText);
}
}
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, FALSE);
return len;
}
case EM_SELECTIONTYPE:
return ME_GetSelectionType(editor);
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_SETEVENTMASK:
{
DWORD nOldMask = editor->nEventMask;
editor->nEventMask = lParam;
return nOldMask;
}
case EM_GETEVENTMASK:
return editor->nEventMask;
case EM_SETCHARFORMAT:
return handle_EM_SETCHARFORMAT( editor, wParam, (CHARFORMAT2W *)lParam );
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);
cf2w_to_cfany(dst, &tmp);
return tmp.dwMask;
}
case EM_SETPARAFORMAT:
{
BOOL result = editor_set_selection_para_fmt( editor, (PARAFORMAT2 *)lParam );
ME_WrapMarkedParagraphs(editor);
ME_UpdateScrollBar(editor);
ME_CommitUndo(editor);
return result;
}
case EM_GETPARAFORMAT:
editor_get_selection_para_fmt( editor, (PARAFORMAT2 *)lParam );
return ((PARAFORMAT2 *)lParam)->dwMask;
case EM_GETFIRSTVISIBLELINE:
{
ME_Paragraph *para = editor_first_para( editor );
ME_Row *row;
int y = editor->vert_si.nPos;
int count = 0;
while (para_next( para ))
{
if (y < para->pt.y + para->nHeight) break;
count += para->nRows;
para = para_next( para );
}
row = para_first_row( para );
while (row)
{
if (y < para->pt.y + row->pt.y + row->nHeight) break;
count++;
row = row_next( row );
}
return count;
}
case EM_HIDESELECTION:
{
editor->bHideSelection = (wParam != 0);
ME_InvalidateSelection(editor);
return 0;
}
case EM_LINESCROLL:
{
if (!(editor->props & TXTBIT_MULTILINE))
return FALSE;
ME_ScrollDown( editor, lParam * get_default_line_height( editor ) );
return TRUE;
}
case WM_CLEAR:
{
LONG from, to;
int nStartCursor = ME_GetSelectionOfs(editor, &from, &to);
ME_InternalDeleteText(editor, &editor->pCursors[nStartCursor], to-from, FALSE);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor, TRUE);
return 0;
}
case EM_REPLACESEL:
{
WCHAR *text = (WCHAR *)lParam;
int len = text ? lstrlenW( text ) : 0;
TRACE( "EM_REPLACESEL - %s\n", debugstr_w( text ) );
ME_ReplaceSel( editor, !!wParam, text, len );
return len;
}
case EM_SCROLLCARET:
editor_ensure_visible( editor, &editor->pCursors[0] );
return 0;
case WM_SETFONT:
{
LOGFONTW lf;
CHARFORMAT2W fmt;
HDC hDC;
BOOL bRepaint = LOWORD(lParam);
if (!wParam)
wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
if (!GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf))
return 0;
hDC = ITextHost_TxGetDC(editor->texthost);
ME_CharFormatFromLogFont(hDC, &lf, &fmt);
ITextHost_TxReleaseDC(editor->texthost, hDC);
if (editor->mode & TM_RICHTEXT) {
ME_Cursor start;
ME_SetCursorToStart(editor, &start);
ME_SetCharFormat(editor, &start, NULL, &fmt);
}
ME_SetDefaultCharFormat(editor, &fmt);
ME_CommitUndo(editor);
editor_mark_rewrap_all( 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==%Ix\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
ME_SetText( editor, (void*)lParam, TRUE );
}
else
TRACE("WM_SETTEXT - NULL\n");
ME_SetCursorToStart(editor, &cursor);
ME_UpdateLinkAttribute(editor, &cursor, INT_MAX);
set_selection_cursors(editor, 0, 0);
editor->nModifyStep = 0;
ME_CommitUndo(editor);
ME_EmptyUndoStack(editor);
ME_UpdateRepaint(editor, FALSE);
return 1;
}
case EM_CANPASTE:
return paste_special( editor, 0, NULL, TRUE );
case WM_PASTE:
case WM_MBUTTONDOWN:
wParam = 0;
lParam = 0;
/* fall through */
case EM_PASTESPECIAL:
paste_special( editor, wParam, (REPASTESPECIAL *)lParam, FALSE );
return 0;
case WM_CUT:
case WM_COPY:
copy_or_cut(editor, msg == WM_CUT);
return 0;
case WM_GETTEXTLENGTH:
{
GETTEXTLENGTHEX how;
how.flags = GTL_CLOSE | (editor->bEmulateVersion10 ? 0 : GTL_USECRLF) | GTL_NUMCHARS;
how.codepage = CP_UNICODE;
return ME_GetTextLengthEx(editor, &how);
}
case EM_GETTEXTLENGTHEX:
return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
case WM_GETTEXT:
{
GETTEXTEX ex;
ex.cb = wParam * sizeof(WCHAR);
ex.flags = GT_USECRLF;
ex.codepage = CP_UNICODE;
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:
{
LONG nFrom, nTo;
int nStartCur = ME_GetSelectionOfs(editor, &nFrom, &nTo);
ME_Cursor *from = &editor->pCursors[nStartCur];
return get_text_range( editor, (WCHAR *)lParam, from, nTo - nFrom );
}
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 = %ld max = %ld textlength = %d\n", rng->chrg.cpMin, rng->chrg.cpMax, textlength );
if (nStart < 0) return 0;
if ((nStart == 0 && nEnd == -1) || nEnd > textlength)
nEnd = textlength;
if (nStart >= nEnd) return 0;
cursor_from_char_ofs( editor, nStart, &start );
return get_text_range( editor, rng->lpstrText, &start, nEnd - nStart );
}
case EM_GETLINE:
{
ME_Row *row;
ME_Run *run;
const unsigned int nMaxChars = *(WORD *) lParam;
unsigned int nCharsLeft = nMaxChars;
char *dest = (char *) lParam;
ME_Cursor start, end;
TRACE( "EM_GETLINE: row=%d, nMaxChars=%d\n", (int)wParam, nMaxChars );
row = row_from_row_number( editor, wParam );
if (row == NULL) return 0;
row_first_cursor( row, &start );
row_end_cursor( row, &end, TRUE );
run = start.run;
while (nCharsLeft)
{
WCHAR *str;
unsigned int nCopy;
int ofs = (run == start.run) ? start.nOffset : 0;
int len = (run == end.run) ? end.nOffset : run->len;
str = get_text( run, ofs );
nCopy = min( nCharsLeft, len );
memcpy(dest, str, nCopy * sizeof(WCHAR));
dest += nCopy * sizeof(WCHAR);
nCharsLeft -= nCopy;
if (run == end.run) break;
run = row_next_run( row, run );
}
/* append line termination, space allowing */
if (nCharsLeft > 0) *((WCHAR *)dest) = '\0';
TRACE("EM_GETLINE: got %u characters\n", nMaxChars - nCharsLeft);
return nMaxChars - nCharsLeft;
}
case EM_GETLINECOUNT:
{
int count = editor->total_rows;
ME_Run *prev_run, *last_run;
last_run = para_end_run( para_prev( editor_end_para( editor ) ) );
prev_run = run_prev_all_paras( last_run );
if (editor->bEmulateVersion10 && prev_run && last_run->nCharOfs == 0 &&
prev_run->len == 1 && *get_text( prev_run, 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. */
count--;
}
count = max(1, count);
TRACE("EM_GETLINECOUNT: count==%d\n", count);
return count;
}
case EM_LINEFROMCHAR:
{
if (wParam == -1) wParam = ME_GetCursorOfs( editor->pCursors + 1 );
return row_number_from_char_ofs( editor, wParam );
}
case EM_EXLINEFROMCHAR:
{
if (lParam == -1) lParam = ME_GetCursorOfs( editor->pCursors + 1 );
return row_number_from_char_ofs( editor, lParam );
}
case EM_LINEINDEX:
{
ME_Row *row;
ME_Cursor cursor;
int ofs;
if (wParam == -1) row = row_from_cursor( editor->pCursors );
else row = row_from_row_number( editor, wParam );
if (!row) return -1;
row_first_cursor( row, &cursor );
ofs = ME_GetCursorOfs( &cursor );
TRACE( "EM_LINEINDEX: nCharOfs==%d\n", ofs );
return ofs;
}
case EM_LINELENGTH:
{
ME_Row *row;
int start_ofs, end_ofs;
ME_Cursor cursor;
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;
}
cursor_from_char_ofs( editor, wParam, &cursor );
row = row_from_cursor( &cursor );
row_first_cursor( row, &cursor );
start_ofs = ME_GetCursorOfs( &cursor );
row_end_cursor( row, &cursor, FALSE );
end_ofs = ME_GetCursorOfs( &cursor );
TRACE( "EM_LINELENGTH(%Id)==%d\n", wParam, end_ofs - start_ofs );
return end_ofs - start_ofs;
}
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:
case EM_FINDTEXTW:
{
FINDTEXTW *ft = (FINDTEXTW *)lParam;
return ME_FindText(editor, wParam, &ft->chrg, ft->lpstrText, NULL);
}
case EM_FINDTEXTEX:
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;
POINTL *pt = (POINTL *)lParam;
cursor_from_coords(editor, pt->x, pt->y, &cursor);
return ME_GetCursorOfs(&cursor);
}
case EM_POSFROMCHAR:
{
ME_Cursor cursor;
int nCharOfs, 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);
cursor_from_char_ofs( editor, nCharOfs, &cursor );
pt.y = cursor.run->pt.y;
pt.x = cursor.run->pt.x +
ME_PointFromChar( editor, cursor.run, cursor.nOffset, TRUE );
pt.y += cursor.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_LBUTTONDBLCLK:
case WM_LBUTTONDOWN:
{
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
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;
link_notify( editor, msg, wParam, lParam );
break;
}
case WM_MOUSEMOVE:
if (editor->bMouseCaptured)
ME_MouseMove(editor, (short)LOWORD(lParam), (short)HIWORD(lParam));
else
link_notify( editor, msg, wParam, lParam );
break;
case WM_LBUTTONUP:
if (editor->bMouseCaptured) {
ITextHost_TxSetCapture(editor->texthost, FALSE);
editor->bMouseCaptured = FALSE;
}
if (editor->nSelectionType == stDocument)
editor->nSelectionType = stPosition;
else
{
link_notify( editor, msg, wParam, lParam );
}
break;
case WM_RBUTTONUP:
case WM_RBUTTONDOWN:
case WM_RBUTTONDBLCLK:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
link_notify( editor, msg, wParam, lParam );
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;
create_caret(editor);
update_caret(editor);
ITextHost_TxNotify( editor->texthost, EN_SETFOCUS, NULL );
if (!editor->bHideSelection && (editor->props & TXTBIT_HIDESELECTION))
ME_InvalidateSelection( editor );
return 0;
case WM_KILLFOCUS:
ME_CommitUndo(editor); /* End coalesced undos for typed characters */
editor->bHaveFocus = FALSE;
editor->wheel_remain = 0;
hide_caret(editor);
DestroyCaret();
ITextHost_TxNotify( editor->texthost, EN_KILLFOCUS, NULL );
if (!editor->bHideSelection && (editor->props & TXTBIT_HIDESELECTION))
ME_InvalidateSelection( editor );
return 0;
case WM_COMMAND:
TRACE("editor wnd command = %d\n", LOWORD(wParam));
return 0;
case WM_KEYDOWN:
if (ME_KeyDown(editor, LOWORD(wParam)))
return 0;
goto do_default;
case WM_CHAR:
return handle_wm_char( editor, wParam, lParam );
case WM_UNICHAR:
if (wParam == UNICODE_NOCHAR) return TRUE;
if (wParam <= 0x000fffff)
{
if (wParam > 0xffff) /* convert to surrogates */
{
wParam -= 0x10000;
handle_wm_char( editor, (wParam >> 10) + 0xd800, 0 );
handle_wm_char( editor, (wParam & 0x03ff) + 0xdc00, 0 );
}
else
handle_wm_char( editor, wParam, 0 );
}
return 0;
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:
scroll_abs( editor, 0, 0, TRUE );
break;
case SB_RIGHT:
scroll_abs( editor, editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage, TRUE );
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);
scroll_h_abs( editor, pos, FALSE );
break;
}
}
break;
}
case EM_SCROLL: /* fall through */
case WM_VSCROLL:
{
int origNPos;
int lineHeight = get_default_line_height( editor );
origNPos = editor->vert_si.nPos;
switch(LOWORD(wParam))
{
case SB_TOP:
scroll_abs( editor, 0, 0, TRUE );
break;
case SB_BOTTOM:
scroll_abs( editor, editor->horz_si.nMax - (int)editor->horz_si.nPage,
editor->vert_si.nMax - (int)editor->vert_si.nPage, TRUE );
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);
scroll_v_abs( editor, pos, FALSE );
break;
}
}
if (msg == EM_SCROLL)
return 0x00010000 | (((editor->vert_si.nPos - origNPos)/lineHeight) & 0xffff);
break;
}
case WM_MOUSEWHEEL:
{
int delta = GET_WHEEL_DELTA_WPARAM( wParam );
BOOL ctrl_is_down = GetKeyState( VK_CONTROL ) & 0x8000;
/* if scrolling changes direction, ignore left overs */
if ((delta < 0 && editor->wheel_remain < 0) ||
(delta > 0 && editor->wheel_remain > 0))
editor->wheel_remain += delta;
else
editor->wheel_remain = delta;
if (editor->wheel_remain)
{
if (ctrl_is_down) {
int numerator;
if (!editor->nZoomNumerator || !editor->nZoomDenominator)
{
numerator = 100;
} else {
numerator = editor->nZoomNumerator * 100 / editor->nZoomDenominator;
}
numerator += calc_wheel_change( &editor->wheel_remain, 10 );
if (numerator >= 10 && numerator <= 500)
ME_SetZoom(editor, numerator, 100);
} else {
UINT max_lines = 3;
int lines = 0;
SystemParametersInfoW( SPI_GETWHEELSCROLLLINES, 0, &max_lines, 0 );
if (max_lines)
lines = calc_wheel_change( &editor->wheel_remain, (int)max_lines );
if (lines)
ME_ScrollDown( editor, -lines * get_default_line_height( editor ) );
}
}
break;
}
case EM_REQUESTRESIZE:
ME_SendRequestResize(editor, TRUE);
return 0;
/* 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, FALSE);
return 0;
}
case WM_IME_COMPOSITION:
{
HIMC hIMC;
ME_Style *style = style_get_insert_style( editor, editor->pCursors );
hIMC = ITextHost_TxImmGetContext(editor->texthost);
ME_DeleteSelection(editor);
ME_SaveTempStyle(editor, style);
if (lParam & (GCS_RESULTSTR|GCS_COMPSTR))
{
LPWSTR lpCompStr = NULL;
DWORD dwBufLen;
DWORD dwIndex = lParam & GCS_RESULTSTR;
if (!dwIndex)
dwIndex = GCS_COMPSTR;
dwBufLen = ImmGetCompositionStringW(hIMC, dwIndex, NULL, 0);
lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
ImmGetCompositionStringW(hIMC, dwIndex, lpCompStr, dwBufLen);
lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
ME_InsertTextFromCursor(editor,0,lpCompStr,dwBufLen/sizeof(WCHAR),style);
HeapFree(GetProcessHeap(), 0, lpCompStr);
if (dwIndex == GCS_COMPSTR)
set_selection_cursors(editor,editor->imeStartIndex,
editor->imeStartIndex + dwBufLen/sizeof(WCHAR));
}
ME_ReleaseStyle(style);
ME_CommitUndo(editor);
ME_UpdateRepaint(editor, FALSE);
return 0;
}
case WM_IME_ENDCOMPOSITION:
{
ME_DeleteSelection(editor);
editor->imeStartIndex=-1;
return 0;
}
case EM_GETOLEINTERFACE:
IRichEditOle_AddRef( editor->richole );
*(IRichEditOle **)lParam = editor->richole;
return 1;
case EM_SETOLECALLBACK:
if(editor->lpOleCallback)
IRichEditOleCallback_Release(editor->lpOleCallback);
editor->lpOleCallback = (IRichEditOleCallback*)lParam;
if(editor->lpOleCallback)
IRichEditOleCallback_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:
{
int mask = 0;
int changes = 0;
if (ME_GetTextLength(editor) ||
!list_empty( &editor->undo_stack ) || !list_empty( &editor->redo_stack ))
return E_UNEXPECTED;
/* Check for mutually exclusive flags in adjacent bits of wParam */
if ((wParam & (TM_RICHTEXT | TM_MULTILEVELUNDO | TM_MULTICODEPAGE)) &
(wParam & (TM_PLAINTEXT | TM_SINGLELEVELUNDO | TM_SINGLECODEPAGE)) << 1)
return E_INVALIDARG;
if (wParam & (TM_RICHTEXT | TM_PLAINTEXT))
{
mask |= TM_RICHTEXT | TM_PLAINTEXT;
changes |= wParam & (TM_RICHTEXT | TM_PLAINTEXT);
if (wParam & TM_PLAINTEXT) {
/* Clear selection since it should be possible to select the
* end of text run for rich text */
ME_InvalidateSelection(editor);
ME_SetCursorToStart(editor, &editor->pCursors[0]);
editor->pCursors[1] = editor->pCursors[0];
/* plain text can only have the default style. */
ME_ClearTempStyle(editor);
ME_AddRefStyle(editor->pBuffer->pDefaultStyle);
ME_ReleaseStyle( editor->pCursors[0].run->style );
editor->pCursors[0].run->style = editor->pBuffer->pDefaultStyle;
}
}
/* FIXME: Currently no support for undo level and code page options */
editor->mode = (editor->mode & ~mask) | changes;
return 0;
}
case EM_SETTARGETDEVICE:
if (wParam == 0)
{
BOOL new = (lParam == 0 && (editor->props & TXTBIT_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->props & TXTBIT_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;
}
/* 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,
BOOL bEOP)
{
ME_Run *run, *next_run;
const WCHAR *pStart = buffer;
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 = FALSE;
run = start->run;
next_run = run_next_all_paras( run );
nLen = run->len - start->nOffset;
str = get_text( run, start->nOffset );
while (srcChars && buflen && next_run)
{
if (bCRLF && run->nFlags & MERF_ENDPARA && ~run->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 = L"\r\n";
}
else
{
nLen = min(nLen, srcChars);
srcChars -= nLen;
}
nLen = min(nLen, buflen);
buflen -= nLen;
CopyMemory(buffer, str, sizeof(WCHAR) * nLen);
buffer += nLen;
run = next_run;
next_run = run_next_all_paras( run );
nLen = run->len;
str = get_text( run, 0 );
}
/* append '\r' to the last paragraph. */
if (run == para_end_run( para_prev( editor_end_para( editor ) ) ) && bEOP)
{
*buffer = '\r';
buffer ++;
}
*buffer = 0;
return buffer - pStart;
}
static int __cdecl wchar_comp( const void *key, const void *elem )
{
return *(const WCHAR *)key - *(const WCHAR *)elem;
}
/* neutral characters end the url if the next non-neutral character is a space character,
otherwise they are included in the url. */
static BOOL isurlneutral( WCHAR c )
{
/* NB this list is sorted */
static const WCHAR neutral_chars[] = L"!\"'(),-.:;<>?[]{}";
/* Some shortcuts */
if (isalnum( c )) return FALSE;
if (c > L'}') return FALSE;
return !!bsearch( &c, neutral_chars, ARRAY_SIZE( neutral_chars ) - 1, sizeof(c), wchar_comp );
}
/**
* 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, neutral_end, space_end;
BOOL candidateStarted = FALSE, quoted = FALSE;
WCHAR c;
while (nChars > 0)
{
WCHAR *str = get_text( cursor.run, 0 );
int run_len = cursor.run->len;
nChars -= run_len - cursor.nOffset;
/* Find start of candidate */
if (!candidateStarted)
{
while (cursor.nOffset < run_len)
{
c = str[cursor.nOffset];
if (!iswspace( c ) && !isurlneutral( c ))
{
*candidate_min = cursor;
candidateStarted = TRUE;
neutral_end.para = NULL;
space_end.para = NULL;
cursor.nOffset++;
break;
}
quoted = (c == '<');
cursor.nOffset++;
}
}
/* Find end of candidate */
if (candidateStarted)
{
while (cursor.nOffset < run_len)
{
c = str[cursor.nOffset];
if (iswspace( c ))
{
if (quoted && c != '\r')
{
if (!space_end.para)
{
if (neutral_end.para)
space_end = neutral_end;
else
space_end = cursor;
}
}
else
goto done;
}
else if (isurlneutral( c ))
{
if (quoted && c == '>')
{
neutral_end.para = NULL;
space_end.para = NULL;
goto done;
}
if (!neutral_end.para)
neutral_end = cursor;
}
else
neutral_end.para = NULL;
cursor.nOffset++;
}
}
cursor.nOffset = 0;
if (!cursor_next_run( &cursor, TRUE ))
goto done;
}
done:
if (candidateStarted)
{
if (space_end.para)
*candidate_max = space_end;
else if (neutral_end.para)
*candidate_max = neutral_end;
else
*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
#define X(str) str, ARRAY_SIZE(str) - 1
struct prefix_s {
const WCHAR text[MAX_PREFIX_LEN];
int length;
}prefixes[] = {
{X(L"prospero:")},
{X(L"telnet:")},
{X(L"gopher:")},
{X(L"mailto:")},
{X(L"https:")},
{X(L"file:")},
{X(L"news:")},
{X(L"wais:")},
{X(L"nntp:")},
{X(L"http:")},
{X(L"www.")},
{X(L"ftp:")},
};
#undef X
WCHAR bufferW[MAX_PREFIX_LEN + 1];
unsigned int i;
ME_GetTextW(editor, bufferW, MAX_PREFIX_LEN, start, nChars, FALSE, FALSE);
for (i = 0; i < ARRAY_SIZE(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.run != candidateStart.run ||
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.run->len)
{
candidateEnd.nOffset -= candidateEnd.run->len;
candidateEnd.run = run_next_all_paras( candidateEnd.run );
}
modified = TRUE;
}
}
if (candidateStart.run != candidateEnd.run ||
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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