void ffw_get_metric(double * ascent, double * descent)
{
SplineFont * sf = cur_fv->sf;
DBounds bb;
SplineFontFindBounds(sf, &bb);
int em = sf->ascent + sf->descent;
if (em > 0)
{
*ascent = ((double)bb.maxy) / em;
*descent = ((double)bb.miny) / em;
}
else
{
*ascent = *descent = 0;
}
}
void ffw_metric(double * ascent, double * descent)
{
SplineFont * sf = cur_fv->sf;
struct pfminfo * info = &sf->pfminfo;
SFDefaultOS2Info(info, sf, sf->fontname);
info->pfmset = 1;
sf->changed = 1;
DBounds bb;
SplineFontFindBounds(sf, &bb);
/*
printf("bb %lf %lf\n", bb.maxy, bb.miny);
printf("_ %d %d\n", sf->ascent, sf->descent);
printf("win %d %d\n", info->os2_winascent, info->os2_windescent);
printf("%d %d\n", info->winascent_add, info->windescent_add);
printf("typo %d %d\n", info->os2_typoascent, info->os2_typodescent);
printf("%d %d\n", info->typoascent_add, info->typodescent_add);
printf("hhead %d %d\n", info->hhead_ascent, info->hhead_descent);
printf("%d %d\n", info->hheadascent_add, info->hheaddescent_add);
*/
int em = sf->ascent + sf->descent;
if (em > 0)
{
*ascent = ((double)bb.maxy) / em;
*descent = ((double)bb.miny) / em;
}
else
{
*ascent = *descent = 0;
}
int a = floor(bb.maxy + 0.5);
int d = floor(bb.miny + 0.5);
if(a < 0) a = 0;
if(d > 0) d = 0;
/*
sf->ascent = min(a, em);
sf->descent = em - bb.maxy;
*/
info->os2_winascent = a;
info->os2_typoascent = a;
info->hhead_ascent = a;
info->winascent_add = 0;
info->typoascent_add = 0;
info->hheadascent_add = 0;
info->os2_windescent = -d;
info->os2_typodescent = d;
info->hhead_descent = d;
info->windescent_add = 0;
info->typodescent_add = 0;
info->hheaddescent_add = 0;
info->os2_typolinegap = 0;
info->linegap = 0;
}
void ffw_metric(double * ascent, double * descent)
{
SplineFont * sf = cur_fv->sf;
struct pfminfo * info = &sf->pfminfo;
SFDefaultOS2Info(info, sf, sf->fontname);
info->pfmset = 1;
sf->changed = 1;
DBounds bb;
SplineFontFindBounds(sf, &bb);
/*
printf("bb %lf %lf\n", bb.maxy, bb.miny);
printf("_ %d %d\n", sf->ascent, sf->descent);
printf("win %d %d\n", info->os2_winascent, info->os2_windescent);
printf("%d %d\n", info->winascent_add, info->windescent_add);
printf("typo %d %d\n", info->os2_typoascent, info->os2_typodescent);
printf("%d %d\n", info->typoascent_add, info->typodescent_add);
printf("hhead %d %d\n", info->hhead_ascent, info->hhead_descent);
printf("%d %d\n", info->hheadascent_add, info->hheaddescent_add);
*/
int em = sf->ascent + sf->descent;
if (em > 0)
{
*ascent = ((double)bb.maxy) / em;
*descent = ((double)bb.miny) / em;
}
else
{
*ascent = *descent = 0;
}
int a = floor(bb.maxy + 0.5);
int d = floor(bb.miny + 0.5);
if(a < 0) a = 0;
if(d > 0) d = 0;
/*
sf->ascent = min(a, em);
sf->descent = em - bb.maxy;
*/
/*
* The embedded fonts are likely to have inconsistent values for the 3 sets of ascent/descent
* PDF viewers don't care, since they don't even use these values
* But have to unify them, for different browsers on different platforms
* Things may become easier when there are CSS rules for baseline-based positioning.
*/
info->os2_winascent = a;
info->os2_typoascent = a;
info->hhead_ascent = a;
info->winascent_add = 0;
info->typoascent_add = 0;
info->hheadascent_add = 0;
info->os2_windescent = -d;
info->os2_typodescent = d;
info->hhead_descent = d;
info->windescent_add = 0;
info->typodescent_add = 0;
info->hheaddescent_add = 0;
info->os2_typolinegap = 0;
info->linegap = 0;
}
