@Override
protected void updateItem(JList list, Object value) {
if (value instanceof IcyColorMap) {
final IcyColorMap colormap = (IcyColorMap) value;
final JComboBox comboBox = getComboBox();
final Dimension dim = comboBox.getSize();
int btnWidth;
try {
// a bit ugly but we really want to access it
final JButton popBtn =
(JButton) ReflectionUtil.getFieldObject(comboBox.getUI(), "arrowButton", true);
btnWidth = popBtn.getWidth();
if (btnWidth <= 0) btnWidth = popBtn.getPreferredSize().width;
if (btnWidth <= 0) btnWidth = 20;
} catch (Exception e) {
btnWidth = 20;
}
final Insets insets = getInsets();
dim.width -= btnWidth + insets.left + insets.right;
dim.height -= insets.top + insets.bottom + 2;
setIcon(new ColormapIcon(colormap, dim.width, dim.height));
setText("");
setToolTipText("Set " + colormap.getName() + " colormap");
setEnabled(list.isEnabled());
setFont(list.getFont());
} else super.updateItem(list, value);
}
/**
* Return true if the colormap has the same type and same color intensities than specified one.
*/
@Override
public boolean equals(Object obj) {
if (obj instanceof IcyColorMap) {
final IcyColorMap colormap = (IcyColorMap) obj;
if (colormap.getType() != type) return false;
if (!Arrays.equals(red.map, colormap.red.map)) return false;
if (!Arrays.equals(green.map, colormap.green.map)) return false;
if (!Arrays.equals(blue.map, colormap.blue.map)) return false;
if (!Arrays.equals(gray.map, colormap.gray.map)) return false;
if (!Arrays.equals(alpha.map, colormap.alpha.map)) return false;
return true;
}
return super.equals(obj);
}