@Override
public AABBox getStringBounds(CharSequence string, float pixelSize) {
if (string == null) {
return new AABBox();
}
final Metrics tmpMetrics = getMetrics();
final float lineGap = tmpMetrics.getLineGap(pixelSize);
final float ascent = tmpMetrics.getAscent(pixelSize);
final float descent = tmpMetrics.getDescent(pixelSize);
final float advanceY = lineGap - descent + ascent;
float totalHeight = 0;
float totalWidth = 0;
float curLineWidth = 0;
for (int i = 0; i < string.length(); i++) {
char character = string.charAt(i);
if (character == '\n') {
totalWidth = Math.max(curLineWidth, totalWidth);
curLineWidth = 0;
totalHeight -= advanceY;
continue;
}
Glyph glyph;
try {
glyph = getGlyph(character);
curLineWidth += glyph.getAdvance(pixelSize, true);
} catch (FontException e) {
logger.error(e.getMessage());
}
}
if (curLineWidth > 0) {
totalHeight -= advanceY;
totalWidth = Math.max(curLineWidth, totalWidth);
}
return new AABBox(0, 0, 0, totalWidth, totalHeight, 0);
}
@Override
public FontMetrics getFontMetrics(Font font) {
if (font != null) {
PGFont prismFont = (PGFont) font.impl_getNativeFont();
Metrics metrics = PrismFontUtils.getFontMetrics(prismFont);
// TODO: what's the difference between ascent and maxAscent?
float maxAscent = -metrics.getAscent(); // metrics.getMaxAscent();
float ascent = -metrics.getAscent();
float xheight = metrics.getXHeight();
float descent = metrics.getDescent();
// TODO: what's the difference between descent and maxDescent?
float maxDescent = metrics.getDescent(); // metrics.getMaxDescent();
float leading = metrics.getLineGap();
return FontMetrics.impl_createFontMetrics(
maxAscent, ascent, xheight, descent, maxDescent, leading, font);
} else {
return null; // this should never happen
}
}
