org.monkeys.gui.PopupWindow.java Source code

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Here is the source code for org.monkeys.gui.PopupWindow.java

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package org.monkeys.gui;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Point;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JPanel;
import javax.swing.JWindow;
import javax.swing.SwingUtilities;
import org.apache.commons.lang.NullArgumentException;

/**
 * popup window
 *
 * @author bowen
 */
public class PopupWindow extends JWindow {
    private JPanel panel;

    public PopupWindow(final Frame parent, final Component base) {
        super(parent);

        if (null == base) {
            throw new NullArgumentException("component");
        }

        this.addWindowFocusListener(new WindowAdapter() {
            @Override
            public void windowLostFocus(WindowEvent e) {
                hidePopup();
            }
        });
        base.addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent e) {
                hidePopup();
            }

            @Override
            public void componentMoved(ComponentEvent e) {
                hidePopup();
            }

            @Override
            public void componentHidden(ComponentEvent e) {
                hidePopup();
            }
        });
        base.addHierarchyListener(new HierarchyListener() {
            @Override
            public void hierarchyChanged(HierarchyEvent e) {
                hidePopup();
            }
        });
    }

    public PopupWindow(final Frame base) {
        super(base);

    }

    public void setPanel(final JPanel panel) {
        this.panel = panel;
        this.getContentPane().removeAll();

        if (null == panel) {
            return;
        }

        Dimension size = panel.getPreferredSize();
        if (null == size) {
            size = panel.getSize();
        }
        if (size != null) {
            this.setSize(size);
            this.setPreferredSize(size);
        }

        final GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.weightx = 1;
        c.weighty = 1;
        c.fill = GridBagConstraints.BOTH;
        this.setLayout(new GridBagLayout());
        this.getContentPane().add(panel, c);
    }

    public void showPupup(final Component component) {
        this.showPupup(component, 0, component.getHeight() + 2);
    }

    public void showPupup(final Component component, final int relX, final int relY) {
        final Point xy = component.getLocationOnScreen();
        if (relX != 0 || relY != 0) {
            xy.translate(relX, relY);
        }
        this.showPopup(xy.x, xy.y);
    }

    private void showPopup(final int x, final int y) {
        this.setLocation(x, y);
        this.setVisible(true);
        this.toFront();
        this.requestFocusInWindow();
    }

    public void hidePopup() {
        this.setVisible(false);
    }
}