UndockedPanel.java

package org.myrobotlab.control.widget;

import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.Serializable;
import java.net.URL;

import javax.swing.JFrame;
import javax.swing.JPanel;

import org.myrobotlab.logging.LoggerFactory;
import org.myrobotlab.service.GUIService;
import org.slf4j.Logger;

/**
 * class or undocked display handles events of closing, saving position and
 * dimensions of
 *
 */
public class UndockedPanel implements Serializable {
  public class TabControlWindowAdapter extends WindowAdapter {
    @Override
    public void windowClosing(WindowEvent winEvt) {
      gui.dockPanel(label);
    }
  }

  public final static Logger log = LoggerFactory.getLogger(UndockedPanel.class.getCanonicalName());

  private static final long serialVersionUID = 1L;

  public int x;

  public int y;

  public int width;

  public int height;

  private String label;

  transient private JPanel panel;

  transient private JFrame frame;

  transient private GUIService gui;

  TabControlWindowAdapter windowAdapter = new TabControlWindowAdapter();

  public UndockedPanel(GUIService gui) {
    this.gui = gui;
  }

  public void close() {
    savePosition();
    if (frame != null) {
      frame.dispose();
      frame = null;
    }
  }

  public JFrame createFrame(String label, JPanel panel) {
    if (frame != null) {
      log.warn("{} frame already created", label);
      return frame;
    }

    this.label = label;
    this.panel = panel;

    frame = new JFrame(label);

    frame.getContentPane().add(panel);

    // icon
    URL url = getClass().getResource("/resource/mrl_logo_36_36.png");
    Toolkit kit = Toolkit.getDefaultToolkit();
    Image img = kit.createImage(url);
    frame.setIconImage(img);

    if (x != 0 || y != 0) {
      frame.setLocation(x, y);
    }

    if (width != 0 || height != 0) {
      frame.setSize(width, height);
    }

    frame.addWindowListener(windowAdapter);

    frame.setVisible(true);
    frame.pack();
    return frame;
  }

  public JPanel getDisplay() {
    return panel;
  }

  public void hide() {
    if (frame != null) {
      frame.setVisible(false);
    } else {
      log.error("{} frame is null", label);
    }
  }

  public boolean isDocked() {
    return frame == null;
  }

  public void savePosition() {
    if (frame == null) {
      log.error("frame is null");
      return;
    }
    Point point = frame.getLocation();
    x = point.x;
    y = point.y;
    width = frame.getWidth();
    height = frame.getHeight();
  }

  public void unhide() {
    if (frame != null) {
      frame.setVisible(true);
    } else {
      log.error("{} frame is null", label);
    }
  }

}