protected void paintBackgroundSafely(final Graphics g) {
final JTextComponent c = getComponent();
final int width = c.getWidth();
final int height = c.getHeight();
// a delegate takes precedence
if (delegate != null) {
delegate.paint(c, g, 0, 0, width, height);
return;
}
final boolean isOpaque = c.isOpaque();
if (!(c.getBorder() instanceof AquaTextFieldBorder)) {
// developer must have set a custom border
if (!isOpaque && AquaUtils.hasOpaqueBeenExplicitlySet(c)) return;
// must fill whole region with background color if opaque
g.setColor(c.getBackground());
g.fillRect(0, 0, width, height);
return;
}
// using our own border
g.setColor(c.getBackground());
if (isOpaque) {
g.fillRect(0, 0, width, height);
return;
}
final Insets margin = c.getMargin();
Insets insets = c.getInsets();
if (insets == null) insets = new Insets(0, 0, 0, 0);
if (margin != null) {
insets.top -= margin.top;
insets.left -= margin.left;
insets.bottom -= margin.bottom;
insets.right -= margin.right;
}
// the common case
final int shrinkage = AquaTextFieldBorder.getShrinkageFor(c, height);
g.fillRect(
insets.left - 2,
insets.top - shrinkage - 1,
width - insets.right - insets.left + 4,
height - insets.bottom - insets.top + shrinkage * 2 + 2);
}
