draw.java

画图程序

/*
 * @(#)Draw.java 1.0 05/11/12
 *
 * You can modify the template of this file in the
 * directory ..\JCreator\Templates\Templatemenu1\ProjectmenuName.java
 *
 * You can also create your own project template by making a new
 * folder in the directory ..\JCreator\Template\. Use the other
 * templates as examples.
 *
 */
package LYD.Draw;

import javax.swing.*;
import java.lang.Thread;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.LinkedList;
import java.util.ArrayList;
public class Draw extends JFrame implements ActionListener,ChangeListener{
	public static Color foreColor=Color.BLACK;
	public static Color backColor=Color.WHITE;
	
	protected TypeDrawController currentController=new TypeDrawController(this);
	protected DrawPanel dp=new DrawPanel(currentController);
	public static Color c=Color.BLACK;
	private JMenuBar menuBar=new JMenuBar();
	private JMenu menu=new JMenu("menu");
	private  JMenuItem menuItem=new JMenuItem("menuItem");
	protected JMenu menuEdit=new JMenu("Eiit");
	protected JMenu menuShape=new JMenu("Shape");
	protected JMenu menucolor=new JMenu("Color");
	
	protected JMenuItem menuRedo=new JMenuItem("Redo");
	protected JMenuItem menuUndo=new JMenuItem("Undo");
	
	protected JMenuItem menuPencil=new JMenuItem("Pencil");
	protected JMenuItem menuLine=new JMenuItem("Line");
	protected JMenuItem menuRectangle=new JMenuItem("Rectangle");
	protected JMenuItem menuCircle=new JMenuItem("Circle");
	protected JMenuItem menuEllipse=new JMenuItem("Ellipse");
	protected JMenuItem menuRubber=new JMenuItem("Rubber");
	
	protected JMenuItem menuBlack=new JMenuItem("Black");
	protected JMenuItem menuRed=new JMenuItem("Red");
	protected JMenuItem menuColor=new JMenuItem("更多颜色");
	
	protected JPanel toolbar=new JPanel();
	protected JPanel menutoolbar=new JPanel();
	protected JPanel blackbar=new JPanel();
	
	protected JPanel drawmenubar=new JPanel();
	
	protected JButton btnLine=new JButton("Line");
	protected JButton btnPencil=new JButton("Pencil");
	protected JButton btnRectangle=new JButton("Rectangle");
	protected JButton btnCircle=new JButton("Circle");
	protected JButton btnEllipse = new JButton("Ellipse");
	protected JButton btnRubber=new JButton("Rubber");
	protected JButton btnRed=new JButton("");
	protected JButton btnBlack=new JButton("");
	protected JLabel labelWidth=new JLabel("画笔宽度:");
	protected JSlider sliderWidth=new JSlider(1,30,1);
	
	protected JMenuBar mb=new JMenuBar();
	
	protected JLabel labelText=new JLabel("当前颜色:");
	protected JButton btnColor=new JButton("         ");
	/*JMenuBar menuBar=new JMenuBar();
	JMenu menu=new JMenu("menu");
	JMenuItem menuItem=new JMenuItem("item");*/
	public Draw() {
		menuEdit.add(menuRedo);menuRedo.setEnabled(false);menuRedo.addActionListener(this);
		menuEdit.add(menuUndo);menuUndo.setEnabled(false);menuUndo.addActionListener(this);
		
		menuShape.add(menuPencil);menuPencil.addActionListener(this);
		menuShape.add(menuLine);menuLine.addActionListener(this);
		menuShape.add(menuRectangle);menuRectangle.addActionListener(this);
		menuShape.add(menuCircle);menuCircle.addActionListener(this);
		menuShape.add(menuEllipse);menuEllipse.addActionListener(this);
		menuShape.add(menuRubber);menuRubber.addActionListener(this);
		
		menucolor.add(menuBlack);menuBlack.addActionListener(this);	
		menucolor.add(menuRed);menuRed.addActionListener(this);
		menucolor.add(menuColor);menuColor.addActionListener(this);
		mb.add(menuEdit);
		mb.add(menuShape);
		mb.add(menucolor);
		drawmenubar.setBackground(Color.white);
		menutoolbar.setLayout(new GridLayout(7,2));
	    
	    menutoolbar.add(btnLine);btnLine.addActionListener(this);
	    menutoolbar.add(btnRectangle);btnRectangle.addActionListener(this);
	    menutoolbar.add(btnCircle);btnCircle.addActionListener(this);
	    menutoolbar.add(btnEllipse);btnEllipse.addActionListener(this);
	    menutoolbar.add(btnPencil);btnPencil.addActionListener(this);
	    menutoolbar.add(btnRubber);btnRubber.addActionListener(this);
	    menuRed.setBackground(Color.RED);
	   	menutoolbar.add(menuRed);menuRed.addActionListener(this);
	    menuBlack.setBackground(Color.black);menuBlack.setForeground(Color.RED);
	    menutoolbar.add(menuBlack);menuBlack.addActionListener(this);
	    toolbar.add(menutoolbar,"North");
	    toolbar.add(blackbar,"South");
	     
	    JPanel statusPanel=new JPanel();
	    btnColor.setBackground(Color.BLACK);
	    btnColor.setEnabled(false);
	    statusPanel.add(labelText);
	    statusPanel.add(btnColor);
	    statusPanel.add(labelWidth);//labelWidth.setLabelFor(sliderWidth);
	    statusPanel.add(sliderWidth);sliderWidth.setSize(20,10);sliderWidth.addChangeListener(this);
	    
	 	setJMenuBar(mb);
	 	dp.setBackground(Color.WHITE);
		this.getContentPane().add(toolbar,BorderLayout.WEST);
		this.getContentPane().add(dp,BorderLayout.CENTER);
		this.getContentPane().add(statusPanel,BorderLayout.SOUTH);
		this.setSize(800,600);
		//p.setBackground(Color.red);
		
		this.getContentPane().add(menuBar,BorderLayout.NORTH);
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				dispose();
				System.exit(0);
			}
		});
	}
	
	public void setUndoable(boolean b)
	{
		menuUndo.setEnabled(b);
	}
	
	public void setRedoable(boolean b)
	{
		menuRedo.setEnabled(b);
	}
	
	public void actionPerformed(ActionEvent e)
	{
		if(e.getSource()==btnLine)
			currentController.SetITypeDrawCommand(TypeDrawController.LineCommand);
		else if(e.getSource()==menuLine)
		    currentController.SetITypeDrawCommand(TypeDrawController.LineCommand);
		else if(e.getSource()==btnRectangle)
			currentController.SetITypeDrawCommand(TypeDrawController.RectangleCommand);
		else if(e.getSource()==menuRectangle)
			currentController.SetITypeDrawCommand(TypeDrawController.RectangleCommand);
		else if(e.getSource()==btnCircle)
			currentController.SetITypeDrawCommand(TypeDrawController.CircleCommand);
		else if(e.getSource()==menuCircle)
			currentController.SetITypeDrawCommand(TypeDrawController.CircleCommand);
		else if(e.getSource()==btnEllipse)
			currentController.SetITypeDrawCommand(TypeDrawController.EllipseCommand);
		else if(e.getSource()==menuEllipse)
			currentController.SetITypeDrawCommand(TypeDrawController.EllipseCommand);
		else if(e.getSource()==btnPencil)
			currentController.SetITypeDrawCommand(TypeDrawController.PencilCommand);
		else if(e.getSource()==menuPencil)
			currentController.SetITypeDrawCommand(TypeDrawController.PencilCommand);
		else if(e.getSource()==btnRubber)
			currentController.SetITypeDrawCommand(TypeDrawController.RubberCommand);
		else if(e.getSource()==menuRubber)
			currentController.SetITypeDrawCommand(TypeDrawController.RubberCommand);
		else if(e.getSource()==btnRed)
			setForeColor(Color.RED);
		else if(e.getSource()==menuRed)
			setForeColor(Color.RED);
		else if(e.getSource()==btnBlack)
			setForeColor(Color.BLACK);
		else if(e.getSource()==menuBlack)
			setForeColor(Color.BLACK);
		else if(e.getSource()==menuColor)
			setForeColor(JColorChooser.showDialog(this,"选择颜色",Color.BLACK));
		else if(e.getSource()==menuRedo)
			{menuRedo.setEnabled(TypeDrawController.Redo());dp.repaint();}
		else if(e.getSource()==menuUndo)
			{menuUndo.setEnabled(TypeDrawController.Undo());dp.repaint();}
		dp.setCursor(currentController.getCursor());
	}
	
	public void stateChanged(ChangeEvent e)
	{
		if(e.getSource()==sliderWidth)
			currentController.setWidth(sliderWidth.getValue());
	}
	public void setForeColor(Color c)
	{
		foreColor=c;
		btnColor.setBackground(c);
		dp.setForeground(foreColor);
		currentController.setColor(c);
	}
	
	public int getBrushWidth()
	{
		return sliderWidth.getValue();
	}
	
	public static void warning(String str)
	{
		Object[] options = {"OK"};
		JOptionPane.showOptionDialog(null, 
		str, "Warning", 
		JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE,
		null, options, options[0]);
	}
	
	public static void main(String args[]) {
		System.out.println("Starting Draw...");
		JFrame.setDefaultLookAndFeelDecorated(true);
		Draw mainFrame = new Draw();
		mainFrame.setBounds(100,100,800,600);
		mainFrame.setResizable(false);
		mainFrame.setTitle("Draw");
		mainFrame.setVisible(true);
	}
}