fontpane.java

一个很好的java2d小程序的源码

package wt;
// Decompiled by Jad v1.5.8e. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/kpdus/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   FontPane.java

import java.awt.*;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.JComboBox;
import javax.swing.JPanel;

class FontPane extends JPanel
    implements ItemListener, ItemSelectable
{

    private static void select(JComboBox choice, int value, int array[])
    {
        for(int i = 0; i < array.length; i++)
            if(array[i] == value)
            {
                choice.setSelectedIndex(i);
                return;
            }

    }

    public FontPane(Font font)
    {
        super(new GridLayout(0, 1, 0, 0));
        mItemListener = null;
        mFont = font;
        JPanel p = new JPanel(new FlowLayout(0, 5, 5));
        familyChoice = new JComboBox(GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames());
        familyChoice.setSelectedItem(mFont.getFamily());
        familyChoice.addItemListener(this);
        p.add(familyChoice);
        add(p);
        p = new JPanel(new FlowLayout(0, 5, 5));
        styleChoice = new JComboBox();
        styleChoice.addItem("Plain");
        styleChoice.addItem("Bold");
        styleChoice.addItem("Italic");
        styleChoice.addItem("Bold Italic");
        select(styleChoice, mFont.getStyle(), styles);
        styleChoice.addItemListener(this);
        p.add(styleChoice);
        sizeChoice = new JComboBox();
        for(int i = 0; i < sizes.length; i++)
            sizeChoice.addItem(Integer.toString(sizes[i]));

        select(sizeChoice, mFont.getSize(), sizes);
        sizeChoice.addItemListener(this);
        p.add(sizeChoice);
        add(p);
    }

    public void itemStateChanged(ItemEvent e)
    {
        if(e.getStateChange() == 1)
        {
            mFont = new Font((String)familyChoice.getSelectedItem(), styles[styleChoice.getSelectedIndex()], sizes[sizeChoice.getSelectedIndex()]);
            processEvent(new ItemEvent(this, 701, mFont, 1));
        }
    }

    public void addItemListener(ItemListener l)
    {
        mItemListener = AWTEventMulticaster.add(mItemListener, l);
    }

    public void removeItemListener(ItemListener l)
    {
        mItemListener = AWTEventMulticaster.remove(mItemListener, l);
    }

    public Object[] getSelectedObjects()
    {
        Object s[] = {
            mFont
        };
        return s;
    }

    public void processItemEvent(ItemEvent e)
    {
        if(mItemListener != null)
            mItemListener.itemStateChanged(e);
    }

    protected void processEvent(AWTEvent e)
    {
        if(e instanceof ItemEvent)
        {
            processItemEvent((ItemEvent)e);
            return;
        } else
        {
            super.processEvent(e);
            return;
        }
    }

    private Font mFont;
    private JComboBox familyChoice;
    private JComboBox styleChoice;
    private JComboBox sizeChoice;
    private static int styles[] = {
        0, 1, 2, 3
    };
    private static int sizes[] = {
        8, 9, 10, 12, 14, 16, 18, 20, 24, 28, 
        32, 36, 40, 48, 56, 64, 72, 80, 96, 112, 
        128
    };
    ItemListener mItemListener;

}