Java Swing设计模式的代码示例

 

//-- V.java类，用来做MVC设计模式中的表现

import java.awt.Container;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SpringLayout;

public class V {

   //Title

final private static String MENU_DLG_TITLE = "MVC";

// Frame
private JFrame frame = new JFrame(MENU_DLG_TITLE);

// Container
private Container con = frame.getContentPane();

Font font = new Font("test", 20, 20);

JLabel lable = new JLabel(font.getName());
JButton enlarge = new JButton("enlarge");
JButton abridge = new JButton("abridge");

public V() {
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   SpringLayout lay = new SpringLayout();
   con.setLayout(lay);

   lay.putConstraint(SpringLayout.WEST, lable, 120,SpringLayout.WEST, con);
   lay.putConstraint(SpringLayout.NORTH, lable, 180, SpringLayout.NORTH, con);

   lay.putConstraint(SpringLayout.WEST, enlarge, 80, SpringLayout.WEST, con);
   lay.putConstraint(SpringLayout.NORTH, enlarge, 380, SpringLayout.NORTH, con);

   lay.putConstraint(SpringLayout.WEST, abridge, 180, SpringLayout.WEST,con);
   lay.putConstraint(SpringLayout.NORTH, abridge, 380, SpringLayout.NORTH, con);

   con.add(lable);
   con.add(enlarge);
   con.add(abridge);

   C c = new C(this, new M());

   enlarge.addActionListener(c);
   abridge.addActionListener(c);

   frame.setBounds(520, 80, 300, 450);
   frame.setVisible(true);
}

public JButton getEnlarge() {
   return enlarge;
}

public void setEnlarge(JButton enlarge) {
   this.enlarge = enlarge;
}

public JButton getAbridge() {
   return abridge;
}

public void setAbridge(JButton abridge) {
   this.abridge = abridge;
}

public JFrame getFrame() {
   return frame;
}

public void setFrame(JFrame frame) {
   this.frame = frame;
}

public Container getCon() {
   return con;
}

public void setCon(Container con) {
   this.con = con;
}

public JLabel getLable() {
   return lable;
}

public void setLable(JLabel lable) {
   this.lable = lable;
}

}

//-- C.java类，用来做MVC设计模式中的控制器

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class C implements ActionListener{
private V v ;
private M m;

public C(V v,M m){
   this.v = v;
   this.m = m;
}

public void actionPerformed(ActionEvent e) {
  
   if (e.getSource() == v.getEnlarge()) {
    m.setSize(m.getSize() + 5);
    m.setStyle(m.getStyle() + 5);    
   }else{   
    m.setSize(m.getSize() - 5);
    m.setStyle(m.getStyle() - 5);
   }
  
   System.out.println("m.Style:" + m.getStyle());
   System.out.println("m.Size:" + m.getSize());
   Font font = new Font(v.getLable().getText(),m.getStyle(),m.getSize());
   v.getLable().setFont(font);

}

public V getV() {
   return v;
}

public void setV(V v) {
   this.v = v;
}

public M getM() {
   return m;
}

public void setM(M m) {
   this.m = m;
}
}

//-- M.java 用来做MVC设计模式中的Medel

public class M {

private static final long serialVersionUID = 1L;
private int size = 20;
private int style = 20;

public M() {
}

public int getSize() {
   return size;
}

public void setSize(int size) {
   this.size = size;
}

public int getStyle() {
   return style;
}

public void setStyle(int style) {
   this.style = style;
}

}

//-- Test.java 测试代码

public class Test {

public static void main(String[] args) {
   M m = new M();
   V v = new V();
   new C(v,m);
}
}