/* scalefont */
int
gs_scalefont(gs_font_dir *pdir, const gs_font *pfont, floatp scale,
gs_font **ppfont, gs_font **pdfont)
{ gs_matrix mat;
gs_make_scaling(scale, scale, &mat);
return gs_makefont(pdir, pfont, &mat, ppfont, pdfont);
}
/* Make a transformed font (common code for makefont/scalefont). */
static int
make_font(i_ctx_t *i_ctx_p, const gs_matrix * pmat)
{
os_ptr op = osp;
os_ptr fp = op - 1;
gs_font *oldfont, *newfont;
int code;
ref *pencoding = 0;
code = font_param(fp, &oldfont);
if (code < 0)
return code;
{
uint space = ialloc_space(idmemory);
ialloc_set_space(idmemory, r_space(fp));
if (dict_find_string(fp, "Encoding", &pencoding) > 0 &&
!r_is_array(pencoding)
)
code = gs_note_error(e_invalidfont);
else {
/*
* Temporarily substitute the new dictionary
* for the old one, in case the Encoding changed.
*/
ref olddict;
olddict = *pfont_dict(oldfont);
*pfont_dict(oldfont) = *fp;
code = gs_makefont(ifont_dir, oldfont, pmat, &newfont);
*pfont_dict(oldfont) = olddict;
}
ialloc_set_space(idmemory, space);
}
if (code < 0)
return code;
/*
* We have to allow for the possibility that the font's Encoding
* is different from that of the base font. Note that the
* font_data of the new font was simply copied from the old one.
*/
if (pencoding != 0 &&
!obj_eq(imemory, pencoding, &pfont_data(newfont)->Encoding)
) {
if (newfont->FontType == ft_composite)
return_error(e_rangecheck);
/* We should really do validity checking here.... */
ref_assign(&pfont_data(newfont)->Encoding, pencoding);
lookup_gs_simple_font_encoding((gs_font_base *) newfont);
}
*fp = *pfont_dict(newfont);
pop(1);
return 0;
}