javax.swing.plaf.basic.BasicArrowButton#SOUTH源码实例Demo

/**
 * <pre>
 * 重写下拉按钮,增加焦点颜色
 *
 * Rewrite the drop-down button to increase the focus color
 * </pre>
 *
 * @return arrow button info
 */
protected JButton createArrowButton()
{
    JButton button = new LuckComboBoxButton(BasicArrowButton.SOUTH)
    {
        private static final long serialVersionUID = -7259590635997077859L;

        @Override
        public LuckBorderField getBorderField()
        {
            return LuckComboBoxUI.this;
        }

        @Override
        public JComponent getParentComp()
        {
            return LuckComboBoxUI.this.comboBox;
        }
    };

    button.setName("ComboBox.arrowButton");

    return button;
}
 

@Override
protected JButton createIncreaseButton(int orientation)
{
	thumbColor = Color.GRAY;
	thumbLightShadowColor = new Color(0, 0, 0, 0);
	thumbDarkShadowColor = new Color(0, 0, 0, 0);
	thumbHighlightColor = Color.GRAY;
	trackColor = new Color(57, 57, 57);
	trackHighlightColor = Color.GRAY;
	return new BasicArrowButton(BasicArrowButton.SOUTH,
			Color.GRAY, Color.GRAY, new Color(57, 57, 57), Color.LIGHT_GRAY);
}
 

@Override
protected JButton createDecreaseButton(int orientation)
{
	thumbColor = Color.GRAY;
	thumbLightShadowColor = new Color(0, 0, 0, 0);
	thumbDarkShadowColor = new Color(0, 0, 0, 0);
	thumbHighlightColor = Color.GRAY;
	trackColor = new Color(57, 57, 57);
	trackHighlightColor = Color.GRAY;
	return new BasicArrowButton(BasicArrowButton.SOUTH,
			Color.GRAY, Color.GRAY, new Color(57, 57, 57), Color.LIGHT_GRAY);
}
 

private void doButtonsLayout(JPanel buttonPanel) {
  buttonPanel.setBorder(BorderFactory.createLoweredBevelBorder());
  GridBagConstraints gc = new GridBagConstraints();
  gc.gridx=0;
  buttonUp = new BasicArrowButtonFixedSize(BasicArrowButton.NORTH);
  buttonDown = new BasicArrowButtonFixedSize(BasicArrowButton.SOUTH);
  buttonPanel.add(buttonUp, gc);
  buttonPanel.add(buttonDown, gc);
}
 

@Override
protected JButton createArrowButton() {
	JButton button = new ScrollbarUiButton(BasicArrowButton.SOUTH, UIDefaults.ARROW_COLOR);
	button.setName("ComboBox.arrowButton");
	return button;
}