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#define PRO5676 /*GG_231296
// Calculer la hauteur exacte de la police de caracteres
// par rapport a la partie du texte situee au dessus de la
// ligne de base.
*/
#define TEST
#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_DEF_FONT
#endif
#define MAXNAMES 32
/*
STATUS Xw_def_font (afontmap,index,size,fontname):
XW_EXT_FONTMAP *afontmap
int index Font index
float size Font size in MM
char fontname[] Font description
Update Text Font Extended fontmap index with the specified
FONT size and description
NOTE than font index 0 is the default font and cann't be REDEFINED .
NOTE than fontname can be defined in three forms :
1) Simple form is "fmly" Ex: "helvetica"
2) More complex form is "fmly-wght" Ex: "helvetica-bold"
3) Full form is "-fndry-fmly-wght-slant-swdth-adstyl-pxlsz
-ptSz-resx-resy-spc-avgWdth-rgstry-encdn"
where each field must be replaced by an "*"
See Xlib User Guide for more information or /usr/bin/X11/xfontsel"
utility .
Returns ERROR if BadFont Index or name
Returns SUCCESS if Successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_def_font (void* afontmap,
int index,float size,char* fontname)
#else
XW_STATUS Xw_def_font (afontmap,index,size,fontname)
void *afontmap;
int index ;
float size ;
char *fontname ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_FONTMAP *pfontmap = (XW_EXT_FONTMAP*)afontmap ;
Screen *screen ;
int i,j,n,prefered_size,count,psize,qsize,retry = True;
char **fontlist,*prefered_name ;
XFontStruct *tmpfont,*selected_font,*prefered_font ;
//char **fontdir ;
float rsize = fabs(size);
if ( !Xw_isdefine_fontindex(pfontmap,index) ) {
/*ERROR*Bad Font Index*/
Xw_set_error(7,"Xw_def_font",&index) ;
return (XW_ERROR) ;
}
if( !fontname || !strlen(fontname) ) {
/*ERROR*Bad Font Name*/
Xw_set_error(8,"Xw_def_font",fontname) ;
return (XW_ERROR) ;
}
screen = ScreenOfDisplay(_FDISPLAY,DefaultScreen(_FDISPLAY)) ;
fontlist = XListFonts(_FDISPLAY,fontname,MAXNAMES,&count) ;
RETRY:
prefered_size =
(unsigned int) (rsize*(float)WidthOfScreen(screen)/
(float)WidthMMOfScreen(screen)) ;
prefered_font = NULL;
prefered_name = NULL;
if( count ) {
char *psub,*pfont,scalable_font[128];
qsize = 0;
for( i=0 ; i<count ; i++ ) {
pfont = fontlist[i];
#ifdef TEST
if(( psub = strstr(pfont,"-0-0-") )) {
int l = psub - pfont + 1;
pfont = scalable_font;
strncpy(pfont,fontlist[i],l);
sprintf(&pfont[l],"%d",prefered_size);
strcat(pfont,&fontlist[i][l+1]);
selected_font = XLoadQueryFont(_FDISPLAY,pfont) ;
} else {
selected_font = XLoadQueryFont(_FDISPLAY,pfont) ;
}
#else
selected_font = XLoadQueryFont(_FDISPLAY,fontlist[i]) ;
#endif
if( !selected_font ) break;
psize = selected_font->max_bounds.ascent +
selected_font->max_bounds.descent ;
if( !prefered_font ||
(abs(psize - prefered_size) < abs(qsize - prefered_size)) ) {
tmpfont = prefered_font ;
prefered_font = selected_font ;
selected_font = tmpfont ;
qsize = psize;
#ifdef TEST
prefered_name = pfont ;
#else
prefered_name = fontlist[i] ;
#endif
}
if( selected_font && (prefered_font != selected_font) ) {
for( j=1,n=0 ; j<pfontmap->maxfont ; j++ ) {
if( pfontmap->fonts[j] && (selected_font->fid ==
pfontmap->fonts[j]->fid) ) n++ ;
}
if( !n ) {
XFreeFont(_FDISPLAY,selected_font);
}
}
}
}
if( pfontmap->gnames[index] ) Xw_free(pfontmap->gnames[index]) ;
if( pfontmap->snames[index] ) Xw_free(pfontmap->snames[index]) ;
pfontmap->gnames[index] = (char*) Xw_malloc(strlen(fontname)+1) ;
strcpy(pfontmap->gnames[index],fontname) ;
if( strstr(fontname,"Defaultfont") ) {
pfontmap->snames[index] =
(char*) Xw_malloc(strlen(pfontmap->snames[0])+1) ;
strcpy(pfontmap->snames[index],pfontmap->snames[0]) ;
pfontmap->fonts[index] = pfontmap->fonts[0] ;
} else if( prefered_font && prefered_name ) {
pfontmap->snames[index] =
(char*) Xw_malloc(strlen(prefered_name)+1) ;
strcpy(pfontmap->snames[index],prefered_name) ;
pfontmap->fonts[index] = prefered_font ;
} else {
pfontmap->snames[index] =
(char*) Xw_malloc(strlen(pfontmap->snames[0])+1) ;
strcpy(pfontmap->snames[index],pfontmap->snames[0]) ;
pfontmap->fonts[index] = pfontmap->fonts[0] ;
/*ERROR*Bad Font Name*/
Xw_set_error(8,"Xw_def_font",fontname) ;
return (XW_ERROR) ;
}
#ifdef PRO5676
if( size < 0. && retry ) {
float ratio,tsize;
psize = (pfontmap->fonts[index])->max_bounds.ascent;
tsize = (float)psize*HeightMMOfScreen(screen)/
(float)HeightOfScreen(screen) ;
ratio = rsize/tsize;
rsize *= ratio;
retry = False;
if( fabs(ratio - 1.) > 0.001 ) goto RETRY;
}
#endif
psize = (pfontmap->fonts[index])->max_bounds.ascent +
(pfontmap->fonts[index])->max_bounds.descent ;
rsize = (float)psize*HeightMMOfScreen(screen)/
(float)HeightOfScreen(screen) ;
pfontmap->gsizes[index] = size ;
pfontmap->fsizes[index] = rsize ;
pfontmap->fratios[index] =
(float)(pfontmap->fonts[index])->max_bounds.descent/
(pfontmap->fonts[index])->max_bounds.ascent;
pfontmap->ssizey[index] =
pfontmap->ssizex[index] = pfontmap->ssizey[index] = rsize;
pfontmap->gslants[index] = pfontmap->sslants[index] = 0. ;
if( fontlist ) XFreeFontNames(fontlist) ;
#ifdef TRACE_DEF_FONT
if( Xw_get_trace() ) {
printf (" Xw_def_font(%lx,%d,%f,'%s')\n",(long ) pfontmap,index,size,fontname) ;
}
#endif
return (XW_SUCCESS);
}
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