437 lines
12 KiB
C
437 lines
12 KiB
C
/*
|
|
* GDI font objects
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
*/
|
|
|
|
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <X11/Xatom.h>
|
|
#include "gdi.h"
|
|
|
|
|
|
/***********************************************************************
|
|
* FONT_MatchFont
|
|
*
|
|
* Find a X font matching the logical font.
|
|
*/
|
|
static XFontStruct * FONT_MatchFont( LOGFONT * font )
|
|
{
|
|
char pattern[100];
|
|
char *family, *weight, *charset;
|
|
char **names;
|
|
char slant, spacing;
|
|
int width, height, count;
|
|
XFontStruct * fontStruct;
|
|
|
|
weight = (font->lfWeight > 550) ? "bold" : "medium";
|
|
slant = font->lfItalic ? 'i' : 'r';
|
|
height = font->lfHeight * 10;
|
|
width = font->lfWidth * 10;
|
|
spacing = (font->lfPitchAndFamily & FIXED_PITCH) ? 'm' :
|
|
(font->lfPitchAndFamily & VARIABLE_PITCH) ? 'p' : '*';
|
|
charset = (font->lfCharSet == ANSI_CHARSET) ? "iso8859-1" : "*";
|
|
family = font->lfFaceName;
|
|
if (!*family) switch(font->lfPitchAndFamily & 0xf0)
|
|
{
|
|
case FF_ROMAN: family = "times"; break;
|
|
case FF_SWISS: family = "helvetica"; break;
|
|
case FF_MODERN: family = "courier"; break;
|
|
case FF_SCRIPT: family = "*"; break;
|
|
case FF_DECORATIVE: family = "*"; break;
|
|
default: family = "*"; break;
|
|
}
|
|
|
|
/* Width==0 seems not to be a valid wildcard on SGI's, using * instead */
|
|
if ( width == 0 )
|
|
sprintf( pattern, "-*-%s-%s-%c-normal--*-%d-*-*-%c-*-%s",
|
|
family, weight, slant, height, spacing, charset
|
|
);
|
|
else
|
|
sprintf( pattern, "-*-%s-%s-%c-normal--*-%d-*-*-%c-%d-%s",
|
|
family, weight, slant, height, spacing, width, charset
|
|
);
|
|
|
|
#ifdef DEBUG_FONT
|
|
printf( "FONT_MatchFont: '%s'\n", pattern );
|
|
#endif
|
|
names = XListFonts( XT_display, pattern, 1, &count );
|
|
if (!count)
|
|
{
|
|
#ifdef DEBUG_FONT
|
|
printf( " No matching font found\n" );
|
|
#endif
|
|
return NULL;
|
|
}
|
|
#ifdef DEBUG_FONT
|
|
printf( " Found '%s'\n", *names );
|
|
#endif
|
|
fontStruct = XLoadQueryFont( XT_display, *names );
|
|
XFreeFontNames( names );
|
|
return fontStruct;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FONT_GetMetrics
|
|
*/
|
|
void FONT_GetMetrics( LOGFONT * logfont, XFontStruct * xfont,
|
|
TEXTMETRIC * metrics )
|
|
{
|
|
int average, i;
|
|
unsigned long prop;
|
|
|
|
metrics->tmAscent = xfont->ascent;
|
|
metrics->tmDescent = xfont->descent;
|
|
metrics->tmHeight = xfont->ascent + xfont->descent;
|
|
|
|
metrics->tmInternalLeading = 0;
|
|
if (XGetFontProperty( xfont, XA_X_HEIGHT, &prop ))
|
|
metrics->tmInternalLeading = xfont->ascent - (short)prop;
|
|
metrics->tmExternalLeading = 0;
|
|
metrics->tmMaxCharWidth = xfont->max_bounds.width;
|
|
metrics->tmWeight = logfont->lfWeight;
|
|
metrics->tmItalic = logfont->lfItalic;
|
|
metrics->tmUnderlined = logfont->lfUnderline;
|
|
metrics->tmStruckOut = logfont->lfStrikeOut;
|
|
metrics->tmFirstChar = xfont->min_char_or_byte2;
|
|
metrics->tmLastChar = xfont->max_char_or_byte2;
|
|
metrics->tmDefaultChar = xfont->default_char;
|
|
metrics->tmBreakChar = ' ';
|
|
metrics->tmPitchAndFamily = logfont->lfPitchAndFamily;
|
|
metrics->tmCharSet = logfont->lfCharSet;
|
|
metrics->tmOverhang = 0;
|
|
metrics->tmDigitizedAspectX = 1;
|
|
metrics->tmDigitizedAspectY = 1;
|
|
|
|
if (xfont->per_char) average = metrics->tmMaxCharWidth;
|
|
else
|
|
{
|
|
XCharStruct * charPtr = xfont->per_char;
|
|
average = 0;
|
|
for (i = metrics->tmFirstChar; i <= metrics->tmLastChar; i++)
|
|
{
|
|
average += charPtr->width;
|
|
charPtr++;
|
|
}
|
|
average /= metrics->tmLastChar - metrics->tmFirstChar + 1;
|
|
}
|
|
metrics->tmAveCharWidth = average;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateFontIndirect (GDI.57)
|
|
*/
|
|
HFONT CreateFontIndirect( LOGFONT * font )
|
|
{
|
|
FONTOBJ * fontPtr;
|
|
HFONT hfont = GDI_AllocObject( sizeof(FONTOBJ), FONT_MAGIC );
|
|
if (!hfont) return 0;
|
|
fontPtr = (FONTOBJ *) GDI_HEAP_ADDR( hfont );
|
|
memcpy( &fontPtr->logfont, font, sizeof(LOGFONT) );
|
|
return hfont;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateFont (GDI.56)
|
|
*/
|
|
HFONT CreateFont( int height, int width, int esc, int orient, int weight,
|
|
BYTE italic, BYTE underline, BYTE strikeout, BYTE charset,
|
|
BYTE outpres, BYTE clippres, BYTE quality, BYTE pitch,
|
|
LPSTR name )
|
|
{
|
|
LOGFONT logfont = { height, width, esc, orient, weight, italic, underline,
|
|
strikeout, charset, outpres, clippres, quality, pitch, };
|
|
strncpy( logfont.lfFaceName, name, LF_FACESIZE );
|
|
return CreateFontIndirect( &logfont );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FONT_GetObject
|
|
*/
|
|
int FONT_GetObject( FONTOBJ * font, int count, LPSTR buffer )
|
|
{
|
|
if (count > sizeof(LOGFONT)) count = sizeof(LOGFONT);
|
|
memcpy( buffer, &font->logfont, count );
|
|
return count;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FONT_SelectObject
|
|
*/
|
|
HFONT FONT_SelectObject( DC * dc, HFONT hfont, FONTOBJ * font )
|
|
{
|
|
static X_PHYSFONT stockFonts[LAST_STOCK_FONT-FIRST_STOCK_FONT+1];
|
|
X_PHYSFONT * stockPtr;
|
|
HFONT prevHandle = dc->w.hFont;
|
|
XFontStruct * fontStruct;
|
|
|
|
/* Load font if necessary */
|
|
|
|
if (!font)
|
|
{
|
|
HFONT hnewfont;
|
|
|
|
hnewfont = CreateFont(10, 7, 0, 0, FW_DONTCARE,
|
|
FALSE, FALSE, FALSE, DEFAULT_CHARSET, 0, 0,
|
|
DEFAULT_QUALITY, FF_DONTCARE, "*" );
|
|
font = (FONTOBJ *) GDI_HEAP_ADDR( hnewfont );
|
|
}
|
|
|
|
if ((hfont >= FIRST_STOCK_FONT) && (hfont <= LAST_STOCK_FONT))
|
|
stockPtr = &stockFonts[hfont - FIRST_STOCK_FONT];
|
|
else
|
|
stockPtr = NULL;
|
|
|
|
if (!stockPtr || !stockPtr->fstruct)
|
|
{
|
|
fontStruct = FONT_MatchFont( &font->logfont );
|
|
}
|
|
else
|
|
{
|
|
fontStruct = stockPtr->fstruct;
|
|
#ifdef DEBUG_FONT
|
|
printf( "FONT_SelectObject: Loaded font from cache %x %p\n",
|
|
hfont, fontStruct );
|
|
#endif
|
|
}
|
|
if (!fontStruct) return 0;
|
|
|
|
/* Free previous font */
|
|
|
|
if ((prevHandle < FIRST_STOCK_FONT) || (prevHandle > LAST_STOCK_FONT))
|
|
{
|
|
if (dc->u.x.font.fstruct)
|
|
XFreeFont( XT_display, dc->u.x.font.fstruct );
|
|
}
|
|
|
|
/* Store font */
|
|
|
|
dc->w.hFont = hfont;
|
|
if (stockPtr)
|
|
{
|
|
if (!stockPtr->fstruct)
|
|
{
|
|
stockPtr->fstruct = fontStruct;
|
|
FONT_GetMetrics( &font->logfont, fontStruct, &stockPtr->metrics );
|
|
}
|
|
memcpy( &dc->u.x.font, stockPtr, sizeof(*stockPtr) );
|
|
}
|
|
else
|
|
{
|
|
dc->u.x.font.fstruct = fontStruct;
|
|
FONT_GetMetrics( &font->logfont, fontStruct, &dc->u.x.font.metrics );
|
|
}
|
|
return prevHandle;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTextCharacterExtra (GDI.89)
|
|
*/
|
|
short GetTextCharacterExtra( HDC hdc )
|
|
{
|
|
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
|
|
if (!dc) return 0;
|
|
return abs( (dc->w.charExtra * dc->w.WndExtX + dc->w.VportExtX / 2)
|
|
/ dc->w.VportExtX );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetTextCharacterExtra (GDI.8)
|
|
*/
|
|
short SetTextCharacterExtra( HDC hdc, short extra )
|
|
{
|
|
short prev;
|
|
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
|
|
if (!dc) return 0;
|
|
extra = (extra * dc->w.VportExtX + dc->w.WndExtX / 2) / dc->w.WndExtX;
|
|
prev = dc->w.charExtra;
|
|
dc->w.charExtra = abs(extra);
|
|
return (prev * dc->w.WndExtX + dc->w.VportExtX / 2) / dc->w.VportExtX;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetTextJustification (GDI.10)
|
|
*/
|
|
short SetTextJustification( HDC hdc, short extra, short breaks )
|
|
{
|
|
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
|
|
if (!dc) return 0;
|
|
|
|
extra = abs((extra * dc->w.VportExtX + dc->w.WndExtX / 2) / dc->w.WndExtX);
|
|
if (!extra) breaks = 0;
|
|
dc->w.breakTotalExtra = extra;
|
|
dc->w.breakCount = breaks;
|
|
if (breaks)
|
|
{
|
|
dc->w.breakExtra = extra / breaks;
|
|
dc->w.breakRem = extra - (dc->w.breakCount * dc->w.breakExtra);
|
|
}
|
|
else
|
|
{
|
|
dc->w.breakExtra = 0;
|
|
dc->w.breakRem = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTextExtent (GDI.91)
|
|
*/
|
|
DWORD GetTextExtent( HDC hdc, LPSTR str, short count )
|
|
{
|
|
SIZE size;
|
|
if (!GetTextExtentPoint( hdc, str, count, &size )) return 0;
|
|
return size.cx | (size.cy << 16);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTextExtentPoint (GDI.471)
|
|
*/
|
|
BOOL GetTextExtentPoint( HDC hdc, LPSTR str, short count, LPSIZE size )
|
|
{
|
|
int dir, ascent, descent;
|
|
XCharStruct info;
|
|
|
|
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
|
|
if (!dc) return FALSE;
|
|
XTextExtents( dc->u.x.font.fstruct, str, count, &dir,
|
|
&ascent, &descent, &info );
|
|
size->cx = abs((info.width + dc->w.breakRem + count * dc->w.charExtra)
|
|
* dc->w.WndExtX / dc->w.VportExtX);
|
|
size->cy = abs((dc->u.x.font.fstruct->ascent+dc->u.x.font.fstruct->descent)
|
|
* dc->w.WndExtY / dc->w.VportExtY);
|
|
|
|
#ifdef DEBUG_FONT
|
|
printf( "GetTextExtentPoint(%d '%s' %d %p): returning %d,%d\n",
|
|
hdc, str, count, size, size->cx, size->cy );
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetTextMetrics (GDI.93)
|
|
*/
|
|
BOOL GetTextMetrics( HDC hdc, LPTEXTMETRIC metrics )
|
|
{
|
|
DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
|
|
if (!dc) return FALSE;
|
|
memcpy( metrics, &dc->u.x.font.metrics, sizeof(*metrics) );
|
|
|
|
metrics->tmAscent = abs( metrics->tmAscent
|
|
* dc->w.WndExtY / dc->w.VportExtY );
|
|
metrics->tmDescent = abs( metrics->tmDescent
|
|
* dc->w.WndExtY / dc->w.VportExtY );
|
|
metrics->tmHeight = metrics->tmAscent + metrics->tmDescent;
|
|
metrics->tmInternalLeading = abs( metrics->tmInternalLeading
|
|
* dc->w.WndExtY / dc->w.VportExtY );
|
|
metrics->tmExternalLeading = abs( metrics->tmExternalLeading
|
|
* dc->w.WndExtY / dc->w.VportExtY );
|
|
metrics->tmMaxCharWidth = abs( metrics->tmMaxCharWidth
|
|
* dc->w.WndExtX / dc->w.VportExtX );
|
|
metrics->tmAveCharWidth = abs( metrics->tmAveCharWidth
|
|
* dc->w.WndExtX / dc->w.VportExtX );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetMapperFlags (GDI.349)
|
|
*/
|
|
DWORD SetMapperFlags(HDC hDC, DWORD dwFlag)
|
|
{
|
|
printf("SetmapperFlags(%04X, %08X) // Empty Stub !\n", hDC, dwFlag);
|
|
return 0L;
|
|
}
|
|
|
|
|
|
/***********************************************************************/
|
|
|
|
#define CI_NONEXISTCHAR(cs) (((cs)->width == 0) && \
|
|
(((cs)->rbearing|(cs)->lbearing| \
|
|
(cs)->ascent|(cs)->descent) == 0))
|
|
|
|
/*
|
|
* CI_GET_CHAR_INFO - return the charinfo struct for the indicated 8bit
|
|
* character. If the character is in the column and exists, then return the
|
|
* appropriate metrics (note that fonts with common per-character metrics will
|
|
* return min_bounds). If none of these hold true, try again with the default
|
|
* char.
|
|
*/
|
|
#define CI_GET_CHAR_INFO(fs,col,def,cs) \
|
|
{ \
|
|
cs = def; \
|
|
if (col >= fs->min_char_or_byte2 && col <= fs->max_char_or_byte2) { \
|
|
if (fs->per_char == NULL) { \
|
|
cs = &fs->min_bounds; \
|
|
} else { \
|
|
cs = &fs->per_char[(col - fs->min_char_or_byte2)]; \
|
|
if (CI_NONEXISTCHAR(cs)) cs = def; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
#define CI_GET_DEFAULT_INFO(fs,cs) \
|
|
CI_GET_CHAR_INFO(fs, fs->default_char, NULL, cs)
|
|
|
|
|
|
/***********************************************************************
|
|
* GetCharWidth (GDI.350)
|
|
*/
|
|
BOOL GetCharWidth(HDC hdc, WORD wFirstChar, WORD wLastChar, LPINT lpBuffer)
|
|
{
|
|
int i, j;
|
|
XFontStruct *xfont;
|
|
XCharStruct *cs, *def;
|
|
|
|
DC *dc = (DC *)GDI_GetObjPtr(hdc, DC_MAGIC);
|
|
if (!dc) return FALSE;
|
|
xfont = dc->u.x.font.fstruct;
|
|
|
|
/* fixed font? */
|
|
if (xfont->per_char == NULL)
|
|
{
|
|
for (i = wFirstChar, j = 0; i <= wLastChar; i++, j++)
|
|
*(lpBuffer + j) = xfont->max_bounds.width;
|
|
return TRUE;
|
|
}
|
|
|
|
CI_GET_DEFAULT_INFO(xfont, def);
|
|
|
|
for (i = wFirstChar, j = 0; i <= wLastChar; i++, j++)
|
|
{
|
|
CI_GET_CHAR_INFO(xfont, i, def, cs);
|
|
*(lpBuffer + j) = cs->width;
|
|
if (*(lpBuffer + j) < 0)
|
|
*(lpBuffer + j) = 0;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* EnumFonts [GDI.70]
|
|
*/
|
|
int EnumFonts(HDC hDC, LPSTR lpFaceName, FARPROC lpFontFunc, LPSTR lpData)
|
|
{
|
|
printf("EMPTY STUB !!! EnumFonts(%04X, %08X, %08X, %08X)\n",
|
|
hDC, lpFaceName, lpFontFunc, lpData);
|
|
return -1;
|
|
}
|
|
|
|
|
|
|