testjtabbedpane.java

java相关的j2me,j2se的一些相关资料

package javaapplication6;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.AbstractButton;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.basic.BasicButtonUI;

public class TestJTabbedPane implements MouseListener{

    public void exec(){
        JFrame frame = new JFrame();
        frame.setBounds(100,100,500,500);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        JTabbedPane pane = new JTabbedPane();
        
        //new  ButtonTabComponent("dfdsf",pane);
        
        pane.setVisible(true);
        pane.setBounds(10,10,350,350);
     //   pane.addMouseListener(this);
        new ButtonTabComponent("tab 0",pane);
        pane.addTab("一",new JPanelContent("aaaaaaaaa"));
        new ButtonTabComponent("tab 0",pane);
        pane.addTab("二",new JPanelContent("bbbbbbbbb"));
        new ButtonTabComponent("tab 0",pane);
        pane.addTab("三",new JPanelContent("ccccccccc"));
        new ButtonTabComponent("tab 0",pane);
        pane.addTab("四",new JPanelContent("ddddddddd"));
        new ButtonTabComponent("tab 0",pane);
       pane.addTab("五",new JPanelContent("eeeeeeeee"));
       new ButtonTabComponent("tab 0",pane);
       //frame.add(new  ButtonTabComponent("dfdsf",pane));
        frame.add(pane);
        
    }
    public static void main(String args[]){
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (InstantiationException ex) {
            ex.printStackTrace();
        } catch (IllegalAccessException ex) {
            ex.printStackTrace();
        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
        } catch (UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
        }
       new TestJTabbedPane().exec();
    }

    public void mouseClicked(MouseEvent e) {
System.out.println(((JPanelContent)((JTabbedPane)e.getSource()).getSelectedComponent()).textArea.getText());
    }

    public void mousePressed(MouseEvent e) {
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
    }

    public void mouseExited(MouseEvent e) {
    }
    class   JPanelContent extends JPanel{//用于存放包装其它的组件
        JPanel west = new JPanel(); 
        JPanel north = new JPanel();
        JTextArea textArea;
        public JPanelContent(String str){
            textArea = new JTextArea(str);
            setLayout(new BorderLayout());
            setVisible(true);
            west.setVisible(true);
            north.setVisible(true);
            textArea.setVisible(true);
            add(west,BorderLayout.WEST);
            add(north,BorderLayout.NORTH);
            add(textArea,BorderLayout.CENTER);            
        } }
    
    
    
    

    
public class ButtonTabComponent extends JPanel {
    private final JTabbedPane pane;

    public ButtonTabComponent(String title, final JTabbedPane pane) {
        //unset default FlowLayout' gaps
        super(new FlowLayout(FlowLayout.LEFT, 0, 0));
        if (pane == null) {
            throw new NullPointerException("TabbedPane is null");
        }
        this.pane = pane;
        setOpaque(false);
        
        //make JLabel read titles from JTabbedPane
        JLabel label = new JLabel(title) {
            public String getText() {
                int i = pane.indexOfComponent(ButtonTabComponent.this);
                if (i != -1) {
                    return pane.getTitleAt(i);
                }
                return null;
            }
        };
        
        add(label);
        //add more space between the label and the button
        label.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 5));
        //tab button
        JButton button = new TabButton();
        add(button);
        //add more space to the top of the component
        setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0));
    }

    private class TabButton extends JButton implements ActionListener {
        public TabButton() {
            int size = 17;
            setPreferredSize(new Dimension(size, size));
            setToolTipText("close this tab");
            //Make the button looks the same for all Laf's
            setUI(new BasicButtonUI());
            //Make it transparent
            setContentAreaFilled(false);
            //No need to be focusable
            setFocusable(false);
            setBorder(BorderFactory.createEtchedBorder());
            setBorderPainted(false);
            //Making nice rollover effect
            //we use the same listener for all buttons
            addMouseListener(buttonMouseListener);
            setRolloverEnabled(true);
            //Close the proper tab by clicking the button
            addActionListener(this);            
        }

        public void actionPerformed(ActionEvent e) {
            int i = pane.indexOfComponent(ButtonTabComponent.this);
            if (i != -1) {
                pane.remove(i);
            }
        }

        //we don't want to update UI for this button
        public void updateUI() {
        }

        //paint the cross
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D) g.create();
            //shift the image for pressed buttons
            if (getModel().isPressed()) {
                g2.translate(1, 1);
            } 
            g2.setStroke(new BasicStroke(2));
            g2.setColor(Color.BLACK);
            if (getModel().isRollover()) {
                g2.setColor(Color.MAGENTA);
            }            
            int delta = 6;
            g2.drawLine(delta, delta, getWidth() - delta - 1, getHeight() - delta - 1);
            g2.drawLine(getWidth() - delta - 1, delta, delta, getHeight() - delta - 1);
            g2.dispose();
        }
    }

    private final MouseListener buttonMouseListener = new MouseAdapter() {
        public void mouseEntered(MouseEvent e) {
            Component component = e.getComponent();
            if (component instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) component;
                button.setBorderPainted(true);
            }
        }

        public void mouseExited(MouseEvent e) {
            Component component = e.getComponent();
            if (component instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) component;
                button.setBorderPainted(false);
            }
        }
    };
}
}