csltcomm.java

一个用Java实现的小型

import java.net.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
import ClntComm;

public class CsltComm extends javax.swing.JFrame {
  public static final String release = "ConsultComm 2.0.2";
  final static File prefsDir = new File(System.getProperty("user.home")+System.getProperty("file.separator")+"CsltComm");
  static MediaTracker iconTracker;
  static MTPanel iconPanel;
  public static int frameNumber;
  public static int imageWidth = 16;
  public static int imageHeight = 4;
  public static int frameDelay = 10;
  private ClntComm projectList;
  protected Image appIcon;
  
  /** Creates new form CsltComm */
  public CsltComm() {
    frameNumber = 0;
    Image clockIcon = getImage("graphics/BlueBar.gif");
    appIcon = getImage("graphics/icon.gif");
    
    // Will this work for Java 1.4 ?
    try {
      Class.forName("javax.xml.parsers.DocumentBuilder"); // jaxp.jar
      Class.forName("org.w3c.dom.Document"); // crimson.jar
      Class.forName("org.xml.sax.Parser"); // xalan.jar
    } catch (ClassNotFoundException e) {
      String extdir = System.getProperty("java.ext.dirs");
      String errMsg = "Java API for XML Parsing was not found.\n"+
      "Make sure you have downloaded the Java API at\n"+
      "http://java.sun.com/xml/download.html and have installed\n"+
      "all .jar files in "+extdir;
      JOptionPane.showMessageDialog(this, errMsg, "JAXP Not Found", JOptionPane.ERROR_MESSAGE);
      System.exit(0);
    }
    initComponents();
    prefsDir.mkdir();
    
    iconTracker = new MediaTracker(this);
    iconTracker.addImage(clockIcon, 0);
    
    Timer iconTimer = new Timer(frameDelay,
    new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        if(projectList.isRunning()){
          try{
            iconTracker.waitForAll();
          }catch(InterruptedException except){
            System.out.println("Error printing frames");
          }
          frameNumber++;
          iconPanel.repaint();
        }
      }
    });
    
    iconTimer.setInitialDelay(0);
    iconPanel = new MTPanel(clockIcon);
    iconPanel.setPreferredSize(new Dimension(imageWidth, imageHeight));
    iconPanel.setMinimumSize(new Dimension(imageWidth, imageHeight));
    iconPanel.setMaximumSize(new Dimension(1024, imageHeight));
    
    projectList = new ClntComm();
    getContentPane().add(projectList);
    getContentPane().add(iconPanel);
    iconTimer.start();
    
    pack();
  }
  
  /** 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 FormEditor.
   */
  private void initComponents() {//GEN-BEGIN:initComponents
    
    getContentPane().setLayout(new javax.swing.BoxLayout(getContentPane(), javax.swing.BoxLayout.Y_AXIS));
    
    setTitle(release);
    setName("frame");
    setIconImage(appIcon);
    addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowClosing(java.awt.event.WindowEvent evt) {
        exitForm(evt);
      }
    });
    
  }//GEN-END:initComponents
  
  /** Exit the Application */
  private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
    projectList.savePrefs();
    System.exit(0);
  }//GEN-LAST:event_exitForm
  
  /**
   * @param args the command line arguments
   */
  public static void main(String args[]) {
    new CsltComm().show();
  }
  
  private Image getImage(String path) {
    //Load the animated icon from the JAR file... note that we can't just to a getImage()
    //anymore - we have to input the image data as a byte stream.
    Image image = null;
    byte[] tn = null;
    InputStream in = getClass().getResourceAsStream(path);
    try{
      int length = in.available();
      tn = new byte[length];
      in.read(tn);
      image = Toolkit.getDefaultToolkit().createImage(tn);
    } catch(Exception e){
      System.out.println("Error loading graphic "+path+": "+e);
    }
    return image;
  }
  
  // Variables declaration - do not modify//GEN-BEGIN:variables
  // End of variables declaration//GEN-END:variables
  class MTPanel extends JPanel {
    Image animationFrame;
    
    public MTPanel(Image frame) {
      animationFrame = frame;
    }
    
    //Draw the current frame of animation.
    public void paintComponent(Graphics g) {
      super.paintComponent(g); //paint the background
      int width = getWidth();
      int height = getHeight();
      
      //If not all the images are loaded,
      //just display a status string.
      if (!iconTracker.checkAll()) {
        return;
      }
      
      //Paint the frame into the image.
      g.drawImage(animationFrame, (CsltComm.frameNumber%(width+imageWidth))-imageWidth, 0, this);
    }
  }
}