jselectbutton.java

JGraph扩展应用。自定义Renderer,自定义视图View实现自定义工作流控件

package flow.graph.test;

import java.io.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;

import com.sun.java.swing.plaf.windows.*;

/**
 * <p>Title: OpenSwing</p>
 * <p>Description:弹出式菜单按钮 </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author <a href="mailto:[e-mail]">SunKing</a>
 * @version 1.0
 */

public class JSelectButton extends JToggleButton implements Serializable {
    /**
     * 按钮事件
     */
    private ButtonListener listener = new ButtonListener();

//    javax.swing.plaf.BorderUIResource$EmptyBorderUIResource emptyBorder = new
//        javax.swing.plaf.BorderUIResource$EmptyBorderUIResource(new Insets(0, 0,
//        0, 0));

    /**
     * <p>Title: OpenSwing</p>
     * <p>Description: 鼠标移入时的边界</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    public class UpBorder
        extends AbstractBorder {
        int thickness = 1;
        public void paintBorder(Component c, Graphics g, int x, int y,
                                int width, int height) {
            g.setColor(Color.white);
            g.drawLine(0, 0, width - 1, 0);
            g.drawLine(0, 0, 0, height - 1);
            g.setColor(Color.gray);
            g.drawLine(width - 1, 0, width - 1, height);
            g.drawLine(0, height - 1, width, height - 1);
        }

        public Insets getBorderInsets(Component c) {
            return new Insets(thickness, thickness, thickness, thickness);
        }
    }

    /**
     * <p>Title: OpenSwing</p>
     * <p>Description: 鼠标按下时的边界</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    public class DownBorder
        extends AbstractBorder {
        int thickness = 1;
        public void paintBorder(Component c, Graphics g, int x, int y,
                                int width, int height) {
            g.setColor(Color.gray);
            g.drawLine(0, 0, width - 1, 0);
            g.drawLine(0, 0, 0, height - 1);
            g.setColor(Color.white);
            g.drawLine(width - 1, 0, width - 1, height);
            g.drawLine(0, height - 1, width, height - 1);
        }

        public Insets getBorderInsets(Component c) {
            return new Insets(thickness, thickness, thickness, thickness);
        }
    }

    /**
     * <p>Title: OpenSwing</p>
     * <p>Description: 按钮各种动作时边界变化以及事件处理</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    private class ButtonListener
        implements MouseListener {
        UpBorder upBorder = new UpBorder();
        DownBorder downBorder = new DownBorder();
        public void mouseClicked(MouseEvent e) {
			setSelected(!isSelected());
        }

        public void mousePressed(MouseEvent e) {
            if (!JSelectButton.this.isEnabled()) {
                return;
            }
			setBorder(downBorder);
        }

        public void mouseReleased(MouseEvent e) {
            if (!JSelectButton.this.isEnabled()) 
                return;
			JSelectButton sb = (JSelectButton)e.getSource();
			if(sb.contains(e.getPoint())){
				if(isSelected() == false){
					setBorder(downBorder);
				}
				else{
					setBorder(upBorder);
				}
			}
        }

        public void mouseEntered(MouseEvent e) {
            if (!JSelectButton.this.isEnabled()) 
                return;
			if(isSelected() == false)
				setBorder(upBorder);
			else
				setBorder(downBorder);
        }

        public void mouseExited(MouseEvent e) {
            if (!JSelectButton.this.isEnabled()) {
                return;
            }
			if(isSelected() == true)
				setBorder(downBorder);
			else
				setBorder(null);	
        }
    }

    public JSelectButton(String text) {
        super(text, null);
        setFocusable(false);
        setBorder(null);
		addMouseListener(listener);
		this.doLayout();
    }

    public JSelectButton(Icon icon) {
		super(null, icon);
        setFocusable(false);
        setBorder(null);
		addMouseListener(listener);
		this.doLayout();
	}

    /**
     * 设置灰化状态
     * @param enabled boolean
     */
    public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);
    }

    /**
     * 测试代码
     * @param args String[]
     */
    public static void main(String[] args) {
        JFrame frame = new JFrame("JPopupButton Demo");
        class DemoAction
            extends AbstractAction {
            public DemoAction() {
                super.putValue(Action.NAME,
                               "Demo JPopupButton " +
                               new java.util.Random().nextInt());
            }

            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog( (Component) e.getSource(),
                                              super.getValue(Action.NAME));
            }
        }

        JSelectButton btt1 = new JSelectButton("Button1");

		JSelectButton btt2 = new JSelectButton(UIManager.getIcon("FileView.computerIcon"));

		/*
        btt1.setPreferredSize(new Dimension(60, 25));
        btt1.setSize(new Dimension(60, 25));
        btt1.setMaximumSize(new Dimension(60, 25));
        btt2.setPreferredSize(new Dimension(100, 25));
        btt2.setSize(new Dimension(100, 25));
        btt2.setMaximumSize(new Dimension(100, 25));
        btt3.setPreferredSize(new Dimension(40, 25));
        btt3.setSize(new Dimension(40, 25));
        btt3.setMaximumSize(new Dimension(40, 25));
        */
        JToolBar bar = new JToolBar("Toolbar");
		bar.setLayout(new FlowLayout(FlowLayout.LEFT));
        bar.add(btt1);
        bar.add(btt2);

        frame.getContentPane().add(bar, BorderLayout.NORTH);
        frame.setVisible(true);
    }

}