testsplitpanes.java

ALGAE是一个快速创建算法演示的框架。目前支持的算法实现语言包括java和c

package edu.odu.cs.zeil.AlgAE.gui;

import java.awt.*;
import java.awt.event.*;

import edu.odu.cs.zeil.AlgAE.gui.HSplitPane;
import edu.odu.cs.zeil.AlgAE.gui.VSplitPane;

// import DialogWindow;


class Canvas2 extends Canvas
{
    boolean toggle = true;
    private Color c1;
    private Color c2;
    
    
    Canvas2(Color clr1, Color clr2) 
    {
	super();
	c1 = clr1;
	c2 = clr2;
	setBackground (Color.white);
    }

    public void paint (Graphics g)
    {
	if (toggle) {
	    g.setColor (c1);
	}
	else {
	    g.setColor (c2);
	}

	Dimension d = getSize();
//	System.out.println ("Canvas2 paint: " + d.width
//			    + " " + d.height);
	g.fill3DRect (0, 0, d.width, d.height, false);
	toggle = !toggle;
    }

    public Dimension getMinimumSize()
    {
	return new Dimension(2,2);
    }
    
}


public class TestSplitPanes extends Frame {
    private boolean inAnApplet = true;
    private Canvas w1;
    private Canvas w2;
    private Canvas w3;
    private HSplitPane hpane;
    private VSplitPane vpane;
    private MenuItem exitItem;
    

    public TestSplitPanes() {
	w1 = new Canvas2(Color.red, Color.green);
	w2 = new Canvas2(Color.blue, Color.yellow);
	w3 = new Canvas2(Color.cyan, Color.magenta);

	hpane = new HSplitPane (w1, w2, 0.75);
	vpane = new VSplitPane (hpane, w3, 0.5);
	add (vpane);

	MenuBar mb = new MenuBar();
	setMenuBar(mb);

	Menu fileMenu = new Menu ("File", false);
	mb.add(fileMenu);
	
	exitItem = new MenuItem ("Exit");
	fileMenu.add (exitItem);
	exitItem.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent e) {
	    if (inAnApplet)
	      {
		dispose();
	      }
	    else
	      {
		System.exit(0);
	      }
	  }
	});
	
	addWindowListener(new WindowAdapter() {
	  public void windowActivated(WindowEvent e) {}
	  public void windowClosed(WindowEvent e) {}
	  public void windowClosing(WindowEvent e) {System.exit(0);}
	  public void windowDeactivated(WindowEvent e) {}
	  public void windowDeiconified(WindowEvent e) {}
	  public void windowIconified(WindowEvent e) {}
	  public void windowOpened(WindowEvent e) {}});

	addMouseListener(new MouseAdapter() {
	  public void mouseClicked(MouseEvent e) {}
	  public void mouseExited(MouseEvent e) {}
	  public void mousePressed(MouseEvent e) {
	      setTitle ("down [" + e.getX() + ", " + e.getY() + "]");
	  }
	  public void mouseReleased(MouseEvent e) {
	      setTitle (getTitle() + "  up [" + e.getX() + ", " + e.getY() + "]");
	  }});
    }

  /*
  public boolean action(Event event, Object arg) {
    if (event.target instanceof MenuItem) {
      MenuItem mi=(MenuItem)(event.target);

      if (mi == exitItem)
	{
	if (inAnApplet)
	  {
	    dispose();
	  }
	else
	  {
	    System.exit(0);
	  }
	}
    }
    return true;
  }
  */


  public Dimension getPreferredSize() {
    return new Dimension (400,300);
  }

  public synchronized Dimension getMinimumSize() {
    return new Dimension (100,100);
  }

  /*
  public boolean handleEvent(Event event) {
    //System.out.println ("TestSplitPanes event " + event.id);
    if (event.id == Event.WINDOW_DESTROY) {
      if (inAnApplet) {
	dispose();
      } else {
	System.exit(0);
      }
    }   
    return super.handleEvent(event);
  }
  */
  /*
  public boolean mouseDown(Event event, int x, int y) 
  {
    setTitle ("down [" + x + ", " + y + "]");
    return false;
  }
  
  public boolean mouseUp(Event event, int x, int y) 
  {
    setTitle (getTitle() + "  up [" + x + ", " + y + "]");
    return false;
  }
  */

    public static void main(String args[]) {
        TestSplitPanes window = new TestSplitPanes();
        window.inAnApplet = false;

        window.setTitle("SplitPanes Application");
        window.pack();
        window.show();
    }
}