usegifencoder.java

来自「精通NetBeans光盘源代码,很好很好的资料」· Java 代码 · 共 168 行

/*
 * UseGifEncoder.java
 *
 * Created on 2006年4月18日, 下午10:41
 */

package org.netbeans.swing.image;

import Acme.JPM.Encoders.GifEncoder;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
import java.io.*;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;

/**
 *
 * @author  boyingking
 */
public class UseGifEncoder extends javax.swing.JFrame {
    
    /** Creates new form UseGifEncoder */
    public UseGifEncoder() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jLabelImage = new javax.swing.JLabel();
        jMenuBarGlobal = new javax.swing.JMenuBar();
        jMenuFile = new javax.swing.JMenu();
        jMenuItemOpenFile = new javax.swing.JMenuItem();
        jMenuItemSaveFile = new javax.swing.JMenuItem();
        jMenuItemExit = new javax.swing.JMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("\u4f7f\u7528GIf\u7f16\u7801\u5668");
        jLabelImage.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);

        jMenuFile.setText("\u6587\u4ef6");
        jMenuItemOpenFile.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItemOpenFile.setText("\u6253\u5f00\u6587\u4ef6");
        jMenuItemOpenFile.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItemOpenFileActionPerformed(evt);
            }
        });

        jMenuFile.add(jMenuItemOpenFile);

        jMenuItemSaveFile.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItemSaveFile.setText("\u4fdd\u5b58\u6587\u4ef6");
        jMenuItemSaveFile.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItemSaveFileActionPerformed(evt);
            }
        });

        jMenuFile.add(jMenuItemSaveFile);

        jMenuItemExit.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_E, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItemExit.setText("\u9000\u51fa");
        jMenuItemExit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItemExitActionPerformed(evt);
            }
        });

        jMenuFile.add(jMenuItemExit);

        jMenuBarGlobal.add(jMenuFile);

        setJMenuBar(jMenuBarGlobal);

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jLabelImage, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 247, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jLabelImage, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 151, Short.MAX_VALUE)
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents
    
    private void jMenuItemExitActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItemExitActionPerformed
// TODO add your handling code here:
        System.exit(0);
    }//GEN-LAST:event_jMenuItemExitActionPerformed
    
    private void jMenuItemSaveFileActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItemSaveFileActionPerformed
// TODO add your handling code here:
        this.saveImageAsGif();
    }//GEN-LAST:event_jMenuItemSaveFileActionPerformed
    
    private void jMenuItemOpenFileActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItemOpenFileActionPerformed
// TODO add your handling code here:
        this.openImageFile();
    }//GEN-LAST:event_jMenuItemOpenFileActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        new UseGifEncoder().setVisible(true);
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabelImage;
    private javax.swing.JMenuBar jMenuBarGlobal;
    private javax.swing.JMenu jMenuFile;
    private javax.swing.JMenuItem jMenuItemExit;
    private javax.swing.JMenuItem jMenuItemOpenFile;
    private javax.swing.JMenuItem jMenuItemSaveFile;
    // End of variables declaration//GEN-END:variables
    private void saveImageAsGif() {
        try {
            int saved=fileChooser.showSaveDialog(this);
            if(saved==JFileChooser.APPROVE_OPTION) {
                if(this.openedFile!=null){//当前已经打开了文件
                    File saveFileName=fileChooser.getSelectedFile();
                    //获取要保存文件的名字
                    String fileName=new String(saveFileName.getPath()+".gif");
                    //创建一个输出流
                    FileOutputStream fileOutPut=new FileOutputStream(fileName);
                    //使用打开的文件的名称获取一个输入流，
                    InputStream ins=new FileInputStream(this.openedFile.toString());
                    //使用ImageIO获取BufferedImage对象
                    BufferedImage srcImage = ImageIO.read(ins);
                    //使用BufferedImage与InputStream对象创建GifEncoder对象
                    encoder = new GifEncoder(srcImage, fileOutPut);
                    //使用encode方法进行编码
                    encoder.encode();
                    fileOutPut.flush();
                    fileOutPut.close();
                    ins.close();
                }
                
            }
        } catch(Exception ea) {
            ea.printStackTrace();
        }
    }
    
    private void openImageFile() {
        fileChooser.showOpenDialog(this);
        openedFile=fileChooser.getSelectedFile();
        if(openedFile==null)
            return;
        else{
            this.jLabelImage.setIcon(new ImageIcon(openedFile.getPath()));
        }
        
    }
    private GifEncoder encoder;
    private File openedFile;
    private JFileChooser fileChooser=new JFileChooser();
}