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package org.graalvm.visualvm.lib.ui.swing;

import java.awt.Component;
import java.awt.Graphics;
import javax.swing.JComponent;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.UIManager;
import org.graalvm.visualvm.lib.ui.UIUtils;

/**
 * JPopupMenu which supports custom background color.
 *
 * @author Jiri Sedlacek
 */
public class ProfilerPopupMenu extends JPopupMenu {
    
    private boolean forceBackground;
    
    
    public ProfilerPopupMenu() {
        super();
    }

    public ProfilerPopupMenu(String label) {
        super(label);
    }
    
    
    // --- Tweaking UI ---------------------------------------------------------
    
    public JMenuItem add(JMenuItem menuItem) {
        if (forceBackground && !UIUtils.isOracleLookAndFeel()) menuItem.setOpaque(false);
        if (forceBackground && !UIUtils.isNimbusLookAndFeel()) menuItem.setForeground(getForeground());
        return super.add(menuItem);
    }
    
    public void add(Component comp, Object constraints) {
        if (forceBackground && !UIUtils.isOracleLookAndFeel() && comp instanceof JComponent)
            ((JComponent)comp).setOpaque(false);
        if (forceBackground && !UIUtils.isNimbusLookAndFeel()) comp.setForeground(getForeground());
        comp.setMinimumSize(comp.getPreferredSize());
        super.add(comp, constraints);
    }
    
    
    public void setForceBackground(boolean force) {
        if (!UIUtils.isNimbus() || !Boolean.TRUE.equals(UIManager.getBoolean("nb.dark.theme"))) // NOI18N
            this.forceBackground = force;
    }
    
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        
        if (forceBackground) {
            g.setColor(getBackground());
            g.fillRect(1, 1, getWidth() - 2, getHeight() - 2);
        }
    }
    
}
