void CairoGlyphToPathTranslator::advance()
{
GlyphBufferAdvance advance = m_glyphBuffer.advanceAt(m_index);
m_translation = m_translation.translate(advance.width(), advance.height());
++m_index;
if (m_index < m_glyphBuffer.size())
m_fontData = m_glyphBuffer.fontAt(m_index);
}
void DrawGlyphs::computeBounds()
{
// FIXME: This code doesn't actually take the extents of the glyphs into consideration. It assumes that
// the glyph lies entirely within its [(ascent + descent), advance] rect.
float ascent = m_font->fontMetrics().floatAscent();
float descent = m_font->fontMetrics().floatDescent();
FloatPoint current = toFloatPoint(localAnchor());
size_t numGlyphs = m_glyphs.size();
for (size_t i = 0; i < numGlyphs; ++i) {
GlyphBufferAdvance advance = m_advances[i];
FloatRect glyphRect = FloatRect(current.x(), current.y() - ascent, advance.width(), ascent + descent);
m_bounds.unite(glyphRect);
current.move(advance.width(), advance.height());
}
}