public int computeMaximumTextSize(final long contentX2) {
final int length = getLength();
final long x = getX();
if (contentX2 >= (x + getWidth())) {
return length;
}
final GlyphList gs = getGlyphs();
long runningPos = x;
final int offset = getOffset();
final int maxPos = offset + length;
for (int i = offset; i < maxPos; i++) {
final Glyph g = gs.getGlyph(i);
runningPos += RenderableText.convert(g.getWidth());
if (i != offset) {
runningPos += g.getSpacing().getMinimum();
}
if (runningPos > contentX2) {
return Math.max(0, i - offset);
}
}
return length;
}
protected void initialize(
final GlyphList glyphs,
final int offset,
final int length,
final ExtendedBaselineInfo baselineInfo,
final int script,
final boolean forceLinebreak) {
if (glyphs == null) {
throw new NullPointerException();
}
if (forceLinebreak == false && length == 0) {
throw new IllegalArgumentException("Do not create zero-length renderable text!");
}
if (glyphs.getSize() < (offset + length)) {
throw new IllegalArgumentException();
}
this.baselineInfo = baselineInfo;
this.ltr = true; // this depends on the script value
this.script = script;
this.glyphs = glyphs;
this.offset = offset;
this.length = length;
this.forceLinebreak = forceLinebreak;
normalTextSpacing = true;
long wordMinChunkWidth = 0;
// long heightAbove = 0;
// long heightBelow = 0;
long minimumChunkWidth = 0;
long realCharTotal = 0;
long spacerMin = 0;
long spacerMax = 0;
long spacerOpt = 0;
final int lastPos = Math.min(glyphs.getSize(), offset + length);
for (int i = offset; i < lastPos; i++) {
final Glyph glyph = glyphs.getGlyph(i);
// heightAbove = Math.max(glyph.getBaseLine(), heightAbove);
// heightBelow = Math.max(glyph.getHeight() - glyph.getBaseLine(), heightBelow);
final int kerning = glyph.getKerning();
final int width = glyph.getWidth();
final long realCharSpace = convert(width - kerning);
realCharTotal += realCharSpace;
wordMinChunkWidth += realCharSpace;
if (i != (lastPos - 1)) {
final Spacing spacing = glyph.getSpacing();
spacerMax += spacing.getMaximum();
spacerMin += spacing.getMinimum();
spacerOpt += spacing.getOptimum();
if (normalTextSpacing == true && Spacing.EMPTY_SPACING.equals(spacing) == false) {
normalTextSpacing = false;
}
wordMinChunkWidth += spacing.getMinimum();
}
if (glyph.getBreakWeight() > BreakOpportunityProducer.BREAK_CHAR) {
minimumChunkWidth = Math.max(minimumChunkWidth, wordMinChunkWidth);
wordMinChunkWidth = 0;
// Paranoid sanity checks: The word- and linebreaks should have been
// replaced by other definitions in the text factory.
if (glyph.getBreakWeight() == BreakOpportunityProducer.BREAK_LINE) {
throw new IllegalStateException(
"A renderable text cannot and must " + "not contain linebreaks.");
}
}
}
final long wordMinWidth = spacerMin + realCharTotal;
final long wordPrefWidth = spacerOpt + realCharTotal;
final long wordMaxWidth = spacerMax + realCharTotal;
minimumChunkWidth = Math.max(minimumChunkWidth, wordMinChunkWidth);
minimumWidth = wordMinWidth;
preferredWidth = wordPrefWidth;
setMaximumBoxWidth(wordMaxWidth);
setMinimumChunkWidth(minimumChunkWidth);
}
