private AutoCloseable configGC(final GC gc) {
final int lineStyle = gc.getLineStyle();
final int alpha = gc.getAlpha();
final int[] lineDash = gc.getLineDash();
final Color foreground = gc.getForeground();
final Color background = gc.getBackground();
gc.setForeground(this.indentGuide.getColor(styledText));
gc.setBackground(styledText.getBackground());
gc.setAlpha(this.indentGuide.getTransparency());
gc.setLineStyle(SWT.LINE_CUSTOM);
gc.setLineDash(new int[] {1, 2});
return new AutoCloseable() {
@Override
public void close() throws Exception {
gc.setForeground(foreground);
gc.setBackground(background);
gc.setAlpha(alpha);
gc.setLineStyle(lineStyle);
gc.setLineDash(lineDash);
}
};
}
/** @param gc */
private void paintSpellError(GC gc) {
if (ranges.isEmpty()) return;
int lineStyle = gc.getLineStyle();
int lineWidth = gc.getLineWidth();
Color lineColor = gc.getForeground();
gc.setLineWidth(2);
gc.setLineStyle(SWT.LINE_DOT);
gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_RED));
int charCount = contentAdapter.getControlContents(control).length();
Rectangle clipping = gc.getClipping();
lineCache.clear();
for (Object obj : ranges.values().toArray()) {
SpellCheckEvent range = (SpellCheckEvent) obj;
int start = range.getWordContextPosition();
if (start < 0 || start >= charCount) continue;
int length = Math.min(range.getInvalidWord().length(), charCount - start);
if (length <= 0) continue;
drawLines(gc, start, start + length - 1, clipping);
}
gc.setLineWidth(lineWidth);
gc.setLineStyle(lineStyle);
gc.setForeground(lineColor);
}