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);
}
}
void drawLine(int lno) {
if (lno < 0 || lno >= text.getLineCount()) return;
int y = text.getLocationAtOffset(text.getOffsetAtLine(lno)).y;
int height = 0;
if (text.getLineCount() > lno + 1)
height = text.getLocationAtOffset(text.getOffsetAtLine(lno + 1)).y - y;
else height = text.getLocationAtOffset(text.getCharCount()).y + text.getLineHeight();
int width = text.getClientArea().width + text.getHorizontalPixel();
text.redraw(0, y, width, height, false);
}
void redrawFrom(int lno) {
if (lno < 0 || lno >= text.getLineCount()) return;
int y = text.getLocationAtOffset(text.getOffsetAtLine(lno)).y;
int height = text.getClientArea().height - y;
int width = text.getClientArea().width + text.getHorizontalPixel();
text.redraw(0, y, width, height, false);
}