private static int abbreviationLength(
String text,
int start,
int end,
FontMetrics metrics,
int maxWidth,
boolean replaceSeparators) {
if (metrics.charWidth('m') * (end - start) <= maxWidth) return end - start;
int abbrWidth = metrics.charWidth(ABBREVIATION_SUFFIX);
int abbrLength = 0;
CharSequenceSubSequence subSeq = new CharSequenceSubSequence(text, start, end);
for (LineTokenizer lt = new LineTokenizer(subSeq); !lt.atEnd(); lt.advance()) {
for (int i = 0; i < lt.getLength(); i++, abbrLength++) {
abbrWidth += metrics.charWidth(subSeq.charAt(lt.getOffset() + i));
if (abbrWidth >= maxWidth) return abbrLength;
}
if (replaceSeparators && lt.getLineSeparatorLength() != 0) {
abbrWidth += metrics.charWidth(RETURN_SYMBOL);
if (abbrWidth >= maxWidth) return abbrLength;
abbrLength += lt.getLineSeparatorLength();
}
}
return abbrLength;
}
@Override
public Dimension getPreferredSize() {
if (myPreferredSize == null) {
int maxLineLength = 0;
int linesCount = 0;
for (LineTokenizer lt = new LineTokenizer(myRawText); !lt.atEnd(); lt.advance()) {
maxLineLength = Math.max(maxLineLength, lt.getLength());
linesCount++;
}
FontMetrics fontMetrics =
((EditorImpl) getEditor())
.getFontMetrics(
myTextAttributes != null ? myTextAttributes.getFontType() : Font.PLAIN);
int preferredHeight = getEditor().getLineHeight() * Math.max(1, linesCount);
int preferredWidth = fontMetrics.charWidth('m') * maxLineLength;
Insets insets = getInsets();
if (insets != null) {
preferredHeight += insets.top + insets.bottom;
preferredWidth += insets.left + insets.right;
}
myPreferredSize = new Dimension(preferredWidth, preferredHeight);
}
return myPreferredSize;
}