/* * @(#) FunctionPanel.java * Copyright 2004 HWStudio. All rights reserved. */package hws.item.smart.panel.function;//導(dǎo)入核心Java類庫import java.awt.CardLayout;import java.lang.reflect.Method;import java.lang.reflect.InvocationTargetException;import javax.swing.JPanel;//導(dǎo)入自定義Java類庫import hws.item.smart.misc.XMLConfig;/** * 功能面板 * * @version 0.1 2005-08-07 * @author Hwerz */public class FunctionPanel extends JPanel {    /*------------------------------------------------------------------------*     *                                屬性定義                                *     *------------------------------------------------------------------------*/    /**     * 該類自身的一個靜態(tài)引用     */    private static FunctionPanel panel;    /**     * 中部面板的布局管理器     */    private static CardLayout cardLayout = new CardLayout();    /*------------------------------------------------------------------------*     *                                構(gòu)造函數(shù)                                *     *------------------------------------------------------------------------*/    /**     * 構(gòu)造函數(shù)為私有，這樣在整個運行過程中該類就只能有一個實例     */    private FunctionPanel() {        super(cardLayout);        for (int i = 0; i < XMLConfig.getParentButtonCount(); i++) {            for (int j = 0; j < XMLConfig.getSonButtonCount(i); j++) {                String l = XMLConfig.getSonButtonLabel(i, j);                String c = XMLConfig.getSonButtonClass(i, j);                try {                    Class c2 = getClass().forName(c);                    Method m = c2.getDeclaredMethod("getInstance", null);                    JPanel p = (JPanel) m.invoke(null, null);                    add(p, l);                } catch (ClassNotFoundException e) {                    e.printStackTrace();                } catch (NoSuchMethodException e) {                    e.printStackTrace();                } catch (InvocationTargetException e) {                    e.printStackTrace();                } catch (SecurityException e) {                    e.printStackTrace();                } catch (IllegalArgumentException e) {                    e.printStackTrace();                } catch (IllegalAccessException e) {                    e.printStackTrace();                }            }        }        int index1 = XMLConfig.getDefaultParentButtonIndex();        int index2 = XMLConfig.getDefaultSonButtonIndex(index1);        show(XMLConfig.getSonButtonLabel(index1, index2));    }    /*------------------------------------------------------------------------*     *                                公共方法                                *     *------------------------------------------------------------------------*/    /**     * 對該類提供的一個全局訪問點，用來實例化該對象     *     * @return 該類唯一的一個實例     */    public static FunctionPanel getInstance() {        if (panel == null) {            panel = new FunctionPanel();        }        return panel;    }    /**     * 顯示具有指定標(biāo)簽的面板     *     * @param label 指定面板的標(biāo)簽     */    public void show(String label) {        cardLayout.show(this, label);    }}