actionbutton.java

来自「源码为科学出版社出版的英文<java设计模式>(影印版)所用的所有例」· Java 代码 · 共 30 行

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

//swing classes
import javax.swing.text.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;

public abstract class ActionButton extends AbstractAction {
    Hashtable properties;

    public ActionButton(String caption, Icon img) {
        properties = new Hashtable();
        properties.put(DEFAULT, caption);
        properties.put(NAME, caption);
        properties.put(SHORT_DESCRIPTION, caption);

        properties.put(SMALL_ICON, img);
    }
    public void putValue(String key, Object value) {
        properties.put(key, value);
    }
    public Object getValue(String key) {
        return properties.get(key);
    }
    public abstract void actionPerformed(ActionEvent e);
}