void pairDraw(GC gc, StyledRegion sr, int start, int end) {
if (start > text.getCharCount() || end > text.getCharCount()) return;
if (gc != null) {
Point left = text.getLocationAtOffset(start);
Point right = text.getLocationAtOffset(end);
if (sr != null) {
if (highlightStyle == HLS_XOR) {
int resultColor = sr.fore ^ cm.getColor(text.getBackground());
if (text.getLineAtOffset(text.getCaretOffset()) == text.getLineAtOffset(start)
&& horzCross
&& horzCrossColor != null
&& ((StyledRegion) horzCrossColor).bback)
resultColor = sr.fore ^ ((StyledRegion) horzCrossColor).back;
Color color = cm.getColor(sr.bfore, resultColor);
gc.setBackground(color);
gc.setXORMode(true);
gc.fillRectangle(left.x, left.y, right.x - left.x, gc.getFontMetrics().getHeight());
} else if (highlightStyle == HLS_OUTLINE) {
Color color = cm.getColor(sr.bfore, sr.fore);
gc.setForeground(color);
gc.drawRectangle(
left.x, left.y, right.x - left.x - 1, gc.getFontMetrics().getHeight() - 1);
} else if (highlightStyle == HLS_OUTLINE2) {
Color color = cm.getColor(sr.bfore, sr.fore);
gc.setForeground(color);
gc.setLineWidth(2);
gc.drawRectangle(
left.x + 1, left.y + 1, right.x - left.x - 2, gc.getFontMetrics().getHeight() - 2);
}
}
} else {
text.redrawRange(start, end - start, true);
}
}
/** Moves caret to the position of currently active pair. */
public boolean matchPair() {
if (currentPair == null) return false;
int caret = text.getCaretOffset();
int lno = text.getLineAtOffset(caret);
PairMatch cp = baseEditor.getPairMatch(lno, caret - text.getOffsetAtLine(lno));
baseEditor.searchGlobalPair(cp);
if (cp.end == null) return false;
if (cp.topPosition) text.setSelection(text.getOffsetAtLine(cp.eline) + cp.end.end);
else text.setSelection(text.getOffsetAtLine(cp.eline) + cp.end.start);
return true;
}
public void stateChanged() {
backParserDelay = true;
int curLine = text.getLineAtOffset(text.getCaretOffset());
if (lineHighlighting && text.getSelectionRange().y != 0) {
lineHighlighting = false;
drawLine(prevLine);
pairsHighlighting = false;
pairsDraw(null, currentPair);
return;
}
if (text.getSelectionRange().y != 0) return;
if (!lineHighlighting) {
// drawing current line
lineHighlighting = true;
drawLine(curLine);
} else if (curLine != prevLine) {
drawLine(prevLine);
drawLine(curLine);
prevLine = curLine;
}
// drawing current pairs
if (!pairsHighlighting) {
pairsHighlighting = true;
pairsDraw(null, currentPair);
} else {
int lineOffset = text.getOffsetAtLine(curLine);
PairMatch newmatch = baseEditor.getPairMatch(curLine, text.getCaretOffset() - lineOffset);
if (newmatch != null) baseEditor.searchLocalPair(newmatch);
if ((newmatch == null && currentPair != null)
|| (newmatch != null && !newmatch.equals(currentPair))) {
pairsDraw(null, currentPair);
pairsDraw(null, newmatch);
}
currentPair = newmatch;
}
}