/**
* Get a glyph outline by character code
*
* <p>Note this method must always return an outline
*
* @param src the character code of the desired glyph
* @return the glyph outline
*/
@Override
protected GeneralPath getOutline(char src, float width) {
// some true type fonts put characters in the undefined
// region of Unicode instead of as normal characters.
if (!this.f.canDisplay(src) && this.f.canDisplay((char) (src + 0xf000))) {
src += 0xf000;
}
// filter out control characters
for (int i = 0; i < controlChars.length; i++) {
if (controlChars[i] == src) {
src = (char) (0xf000 | src);
break;
}
}
char[] glyph = new char[1];
glyph[0] = src;
GlyphVector gv = this.f.createGlyphVector(this.basecontext, glyph);
GeneralPath gp = new GeneralPath(gv.getGlyphOutline(0));
// this should be gv.getGlyphMetrics(0).getAdvance(), but that is
// broken on the Mac, so we need to read the advance from the
// hmtx table in the font
CMap map = this.cmapTable.getCMap(mapIDs[0], mapIDs[1]);
int glyphID = map.map(src);
float advance = (float) this.hmtxTable.getAdvance(glyphID) / (float) this.unitsPerEm;
float widthfactor = width / advance;
gp.transform(AffineTransform.getScaleInstance(widthfactor, -1));
return gp;
}
/**
* @param c
* @param font
* @return GlyphVector using a default rendering context
*/
private SVGGlyph createGlyph(int c, Font font) {
GlyphVector glyphVector =
font.createGlyphVector(
// flipping is done by SVGGlyph
new FontRenderContext(null, true, true),
// unicode to char
String.valueOf((char) c));
// create and store the SVG Glyph
return new SVGGlyph(glyphVector.getGlyphOutline(0), c, glyphVector.getGlyphMetrics(0));
}