/** Extracts the glyph outlines of a given character.
* @param[in] c character code of requested glyph
* @param[out] glyph path segments of the glyph outline
* @param[in] cb optional callback object for tracer class
* @return true if outline could be computed */
bool PhysicalFont::getGlyph (int c, GraphicsPath<Int32> &glyph, GFGlyphTracer::Callback *cb) const {
if (type() == MF) {
const Glyph *cached_glyph=0;
if (CACHE_PATH) {
_cache.write(CACHE_PATH);
_cache.read(name().c_str(), CACHE_PATH);
cached_glyph = _cache.getGlyph(c);
}
if (cached_glyph) {
glyph = *cached_glyph;
return true;
}
else {
string gfname;
if (createGF(gfname)) {
try {
double ds = getMetrics() ? getMetrics()->getDesignSize() : 1;
GFGlyphTracer tracer(gfname, unitsPerEm()/ds, cb);
tracer.setGlyph(glyph);
tracer.executeChar(c);
glyph.closeOpenSubPaths();
if (CACHE_PATH)
_cache.setGlyph(c, glyph);
return true;
}
catch (GFException &e) {
// @@ print error message
}
}
else {
Message::wstream(true) << "failed creating " << name() << ".gf\n";
}
}
}
else { // vector fonts (OTF, PFB, TTF, TTC)
bool ok=true;
FontEngine::instance().setFont(*this);
if (const FontMap::Entry *entry = fontMapEntry())
if (Subfont *sf = entry->subfont)
c = sf->decode(c);
ok = FontEngine::instance().traceOutline(decodeChar(c), glyph, false);
glyph.closeOpenSubPaths();
return ok;
}
return false;
}
TEST(GraphicsPathTest, closeOpenSubPaths) {
GraphicsPath<double> path;
path.moveto(0,0);
path.lineto(1,0);
path.lineto(1,1);
path.lineto(0,1);
path.moveto(10,10);
path.lineto(11,10);
path.lineto(11,11);
path.lineto(10,11);
path.closeOpenSubPaths();
ostringstream oss;
path.writeSVG(oss, false);
EXPECT_EQ(oss.str(), "M0 0H1V1H0ZM10 10H11V11H10Z");
}