return false; // REMIND always safe, but prevents caller optimize
}
private transient SoftReference flmref;
private FontLineMetrics defaultLineMetrics(FontRenderContext frc) {
FontLineMetrics flm = null;
if (flmref == null
|| (flm = (FontLineMetrics)flmref.get()) == null
|| !flm.frc.equals(frc)) {
/* The device transform in the frc is not used in obtaining line
* metrics, although it probably should be: REMIND find why not?
* The font transform is used but its applied in getFontMetrics, so
* just pass identity here
*/
float [] metrics = new float[8];
getFont2D().getFontMetrics(this, identityTx,
frc.getAntiAliasingHint(),
frc.getFractionalMetricsHint(),
metrics);
float ascent = metrics[0];
float descent = metrics[1];
float leading = metrics[2];
float ssOffset = 0;
if (values != null && values.getSuperscript() != 0) {
ssOffset = (float)getTransform().getTranslateY();
ascent -= ssOffset;
descent += ssOffset;
}
float height = ascent + descent + leading;
int baselineIndex = 0; // need real index, assumes roman for everything
// need real baselines eventually
float[] baselineOffsets = { 0, (descent/2f - ascent) / 2f, -ascent };
float strikethroughOffset = metrics[4];
float strikethroughThickness = metrics[5];
float underlineOffset = metrics[6];
float underlineThickness = metrics[7];
float italicAngle = getItalicAngle();
if (isTransformed()) {
AffineTransform ctx = values.getCharTransform(); // extract rotation
if (ctx != null) {
Point2D.Float pt = new Point2D.Float();
pt.setLocation(0, strikethroughOffset);
ctx.deltaTransform(pt, pt);
strikethroughOffset = pt.y;
pt.setLocation(0, strikethroughThickness);
ctx.deltaTransform(pt, pt);
strikethroughThickness = pt.y;
pt.setLocation(0, underlineOffset);
ctx.deltaTransform(pt, pt);
underlineOffset = pt.y;
pt.setLocation(0, underlineThickness);
ctx.deltaTransform(pt, pt);
underlineThickness = pt.y;
}
}
strikethroughOffset += ssOffset;
underlineOffset += ssOffset;
CoreMetrics cm = new CoreMetrics(ascent, descent, leading, height,
baselineIndex, baselineOffsets,
strikethroughOffset, strikethroughThickness,
underlineOffset, underlineThickness,
ssOffset, italicAngle);
flm = new FontLineMetrics(0, cm, frc);
flmref = new SoftReference(flm);
}
return (FontLineMetrics)flm.clone();
}