GenericToolbar.java 文件源码

public Dimension getPreferredSize() {
    Dimension dim = super.getPreferredSize();
    if (PREFERRED_HEIGHT == -1) {
        GenericToolbar tb = new GenericToolbar();
        tb.setBorder(getBorder());
        tb.setBorderPainted(isBorderPainted());
        tb.setRollover(isRollover());
        tb.setFloatable(isFloatable());
        Icon icon = Icons.getIcon(GeneralIcons.SAVE);
        tb.add(new JButton("Button", icon)); // NOI18N
        tb.add(new JToggleButton("Button", icon)); // NOI18N
        tb.add(new JTextField("Text")); // NOI18N
        JComboBox c = new JComboBox();
        c.setEditor(new BasicComboBoxEditor());
        c.setRenderer(new BasicComboBoxRenderer());
        tb.add(c);
        tb.addSeparator();
        PREFERRED_HEIGHT = tb.getSuperPreferredSize().height;
    }
    dim.height = getParent() instanceof JToolBar ? 1 :
                 Math.max(dim.height, PREFERRED_HEIGHT);
    return dim;
}