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Debug output for which fonts are used by the PDF engine

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This commit is contained in:
Kovid Goyal 2016-02-14 11:37:58 +05:30
parent 0398ecd9d3
commit 194bda9f3b
1 changed files with 10 additions and 4 deletions
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14
src/calibre/ebooks/pdf/render/engine.py
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@ -245,13 +245,19 @@ class PdfEngine(QPaintEngine):
gi = GlyphInfo(*self.qt_hack.get_glyphs(point, text_item))
if not gi.indices:
return
name = hash(gi.name)
if name not in self.fonts:
metrics = self.fonts.get(gi.name)
if metrics is None:
from calibre.utils.fonts.utils import get_all_font_names
try:
self.fonts[name] = self.create_sfnt(text_item)
names = get_all_font_names(gi.name, True)
names = ' '.join('%s=%s'%(k, names[k]) for k in sorted(names))
except Exception:
names = 'Unknown'
self.debug('Loading font: %s' % names)
try:
self.fonts[gi.name] = metrics = self.create_sfnt(text_item)
except UnsupportedFont:
return super(PdfEngine, self).drawTextItem(point, text_item)
metrics = self.fonts[name]
for glyph_id in gi.indices:
try:
metrics.glyph_map[glyph_id] = metrics.full_glyph_map[glyph_id]