def _get_num(self, font, sym):
'get charcode for sym'
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
return num
def _get_num(self, font, sym):
'get charcode for sym'
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
return num
def _get_info (self, font, sym, fontsize, dpi):
'load the cmfont, metrics and glyph with caching'
key = font, sym, fontsize, dpi
tup = self.glyphd.get(key)
if tup is not None:
return tup
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
sym = self.fonts[basename].get_glyph_name(num)
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
sym = '.notdef'
raise ValueError('unrecognized symbol "%s, %d"' % (sym, num))
if basename not in bakoma_fonts:
bakoma_fonts.append(basename)
cmfont = self.fonts[basename]
cmfont.set_size(fontsize, dpi)
head = cmfont.get_sfnt_table('head')
glyph = cmfont.load_char(num)
xmin, ymin, xmax, ymax = [val/64.0 for val in glyph.bbox]
if basename == 'cmex10':
offset = -(head['yMin']+512)/head['unitsPerEm']*10.
else:
offset = 0.
metrics = Bunch(
advance = glyph.linearHoriAdvance/65536.0,
height = glyph.height/64.0,
width = glyph.width/64.0,
xmin = xmin,
xmax = xmax,
ymin = ymin+offset,
ymax = ymax+offset
)
self.glyphd[key] = basename, metrics, sym, offset
return basename, metrics, '/'+sym, offset
def _get_info(self, font, sym, fontsize, dpi):
'load the cmfont, metrics and glyph with caching'
key = font, sym, fontsize, dpi
tup = self.glyphd.get(key)
if tup is not None:
return tup
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
sym = self.fonts[basename].get_glyph_name(num)
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
sym = '.notdef'
raise ValueError('unrecognized symbol "%s, %d"' % (sym, num))
if basename not in bakoma_fonts:
bakoma_fonts.append(basename)
cmfont = self.fonts[basename]
cmfont.set_size(fontsize, dpi)
head = cmfont.get_sfnt_table('head')
glyph = cmfont.load_char(num)
xmin, ymin, xmax, ymax = [val / 64.0 for val in glyph.bbox]
if basename == 'cmex10':
offset = -(head['yMin'] + 512) / head['unitsPerEm'] * 10.
else:
offset = 0.
metrics = Bunch(advance=glyph.linearHoriAdvance / 65536.0,
height=glyph.height / 64.0,
width=glyph.width / 64.0,
xmin=xmin,
xmax=xmax,
ymin=ymin + offset,
ymax=ymax + offset)
self.glyphd[key] = basename, metrics, sym, offset
return basename, metrics, '/' + sym, offset
def render(self, ox, oy, font, sym, fontsize, dpi):
cmfont, metrics, glyph, offset = \
self._get_info(font, sym, fontsize, dpi)
if not self.usingSVG:
cmfont.draw_glyph_to_bitmap(
int(ox), int(self.height - oy - metrics.ymax), glyph)
else:
oy += offset - 512/2048.*10.
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
print >>sys.stderr, 'unrecognized symbol "%s"' % sym
self.svg_glyphs.append((basename, fontsize, num, ox, oy, metrics))
def render(self, ox, oy, font, sym, fontsize, dpi):
cmfont, metrics, glyph, offset = \
self._get_info(font, sym, fontsize, dpi)
if not self.usingSVG:
cmfont.draw_glyph_to_bitmap(int(ox),
int(self.height - oy - metrics.ymax),
glyph)
else:
oy += offset - 512 / 2048. * 10.
basename = self.fontmap[font]
if latex_to_bakoma.has_key(sym):
basename, num = latex_to_bakoma[sym]
num = self.charmaps[basename][num]
elif len(sym) == 1:
num = ord(sym)
else:
num = 0
print >> sys.stderr, 'unrecognized symbol "%s"' % sym
self.svg_glyphs.append((basename, fontsize, num, ox, oy, metrics))
