/** @param gc */
private void paintRanges(GC gc, Rectangle bounds) {
// draw a rectangle for each range
gc.setAlpha(200);
for (RangeAnnotation a : items) {
if (a == selectedAnnotation) {
continue;
}
if (a.isDisposed()) continue;
int visualLow = toVisualValue(a.getOffset()) + bounds.x;
int visualHigh = toVisualValue(a.getLength()) + visualLow;
if (visualLow < bounds.x + HANDLE_SIZE) {
visualLow = bounds.x + HANDLE_SIZE;
}
if (visualHigh > bounds.x + bounds.width - HANDLE_SIZE) {
visualHigh = bounds.x + bounds.width - HANDLE_SIZE;
}
Color fg = a.getForeground();
if (a == selectedAnnotation) {
fg = gc.getDevice().getSystemColor(SWT.COLOR_WHITE);
}
if (fg == null) {
fg = getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY);
}
Color bg = a.getBackground();
if (bg == null) {
bg = getDisplay().getSystemColor(SWT.COLOR_GRAY);
}
gc.setForeground(fg);
gc.setBackground(bg);
gc.fillRectangle(visualLow, bounds.y, visualHigh - visualLow, bounds.height - 1);
gc.drawRectangle(visualLow, bounds.y, visualHigh - visualLow - 1, bounds.height - 1);
}
// paint the selected annotation
if (selectedAnnotation != null) {
RangeAnnotation a = selectedAnnotation;
if (a.isDisposed()) return;
int visualLow = toVisualValue(a.getOffset()) + bounds.x;
int visualHigh = toVisualValue(a.getLength()) + visualLow;
if (visualLow < bounds.x + HANDLE_SIZE) {
visualLow = bounds.x + HANDLE_SIZE;
}
if (visualHigh > bounds.x + bounds.width - HANDLE_SIZE) {
visualHigh = bounds.x + bounds.width - HANDLE_SIZE;
}
Color fg = gc.getDevice().getSystemColor(SWT.COLOR_WHITE);
if (fg == null) {
fg = getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY);
}
Color bg = a.getBackground();
if (bg == null) {
bg = getDisplay().getSystemColor(SWT.COLOR_GRAY);
}
gc.setForeground(fg);
gc.setBackground(bg);
gc.fillRectangle(visualLow, bounds.y, visualHigh - visualLow, bounds.height - 1);
gc.drawRectangle(visualLow, bounds.y, visualHigh - visualLow - 1, bounds.height - 1);
}
}
