void writeTextItem_actionPerformed(ActionEvent e) {
    lineType = 7;
  }
  //初始化點p1和p2
  void jScrollPane1_mousePressed(MouseEvent e) {
    p1 = e.getPoint();
    p2 = p1;
  }
  //進行圖形繪制
  void jScrollPane1_mouseDragged(MouseEvent e) {
    g = this.jScrollPane1.getGraphics();
    //lineType表示所繪制的圖形類型：1表示繪制線段，2表示繪制圓，3表示繪制矩形
    //4表示繪制橢圓，5表示繪制填充圓，6表示繪制任意線段，7表示輸出文字
    switch(lineType){
      case 1:
        //用背景顏色覆蓋前面的直線
        g.setColor(this.getBackground());
        g.drawLine(p1.x,p1.y,p2.x,p2.y);
        //設置當前畫圖顏色并繪制線段
        g.setColor(colour);
        g.drawLine(p1.x,p1.y,e.getX(),e.getY());
        p2 = e.getPoint();
        break;
      case 2:
        g.setColor(this.getBackground());
        if(Math.abs(e.getX() - p1.x) > Math.abs(e.getY() - p1.y)){
            //用背景顏色覆蓋前面的圓
          if(Math.abs(p2.x - p1.x) > Math.abs(p2.y - p1.y))
            g.drawOval(p1.x,p1.y,Math.abs(p2.x-p1.x),Math.abs(p2.x-p1.x));
          else
            g.drawOval(p1.x,p1.y,Math.abs(p2.y-p1.y),Math.abs(p2.y-p1.y));
            //設置當前的畫圖顏色并繪制圓
          g.setColor(colour);
          g.drawOval(p1.x, p1.y, Math.abs(e.getX() - p1.x),Math.abs(e.getX() - p1.x));
        }
        else{
          ////用背景顏色覆蓋前面的圓
          if(Math.abs(p2.x - p1.x) > Math.abs(p2.y - p1.y))
            g.drawOval(p1.x,p1.y,Math.abs(p2.x-p1.x),Math.abs(p2.x-p1.x));
          else
            g.drawOval(p1.x,p1.y,Math.abs(p2.y-p1.y),Math.abs(p2.y-p1.y));
            //設置當前的畫圖顏色并繪制圓
          g.setColor(colour);
          g.drawOval(p1.x, p1.y, Math.abs(e.getY() - p1.y),Math.abs(e.getY() - p1.y));
        }
        p2 = e.getPoint();
        break;
      case 3:
        //用背景顏色覆蓋前面的圓
        g.setColor(this.getBackground());
        g.drawRect(p1.x,p1.y,Math.abs(p2.x-p1.x),Math.abs(p2.y-p1.y));
        //設置當前畫圖顏色并繪制矩形
        g.setColor(colour);
        g.drawRect(p1.x,p1.y,Math.abs(e.getX()-p1.x),Math.abs(e.getY()-p1.y));
        p2 = e.getPoint();
        break;
      case 4:
        //用背景顏色覆蓋前面的橢圓
        g.setColor(this.getBackground());
        g.drawOval(p1.x,p1.y,Math.abs(p2.x-p1.x),Math.abs(p2.y-p1.y));
        //設置當前畫圖顏色并繪制橢圓
        g.setColor(colour);
        g.drawOval(p1.x,p1.y,Math.abs(e.getX()-p1.x),Math.abs(e.getY()-p1.y));
        p2 = e.getPoint();
        break;
      case 5:
        //用背景顏色覆蓋前面的填充圓
        g.setColor(this.getBackground());
        g.fillOval(p1.x,p1.y,Math.abs(p2.x-p1.x),Math.abs(p2.y-p1.y));
        //設置當前畫圖顏色并繪制填充圓
        g.setColor(colour);
        g.fillOval(p1.x,p1.y,Math.abs(e.getX()-p1.x),Math.abs(e.getY()-p1.y));
        p2 = e.getPoint();
        break;
      case 6:
        //設置當前畫圖顏色并繪制任意線段
        g.setColor(colour);
        g.drawLine(p1.x,p1.y,e.getX(),e.getY());
        p1 = e.getPoint();
        break;
      case 7:
        //輸出文字
        JOptionPane optionPane = new JOptionPane();
        String text = optionPane.showInputDialog((Component)e.getSource(),"輸入文字：","Dialog for text input",JOptionPane.PLAIN_MESSAGE);
       if(text != null){
          g.drawString(text, e.getX(), e.getY());
        }
      break;

      default:
        break;
    }
  }
  //工具欄快捷鍵準備畫線段
  void lineBtn_actionPerformed(ActionEvent e) {
    this.drawLineItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備畫圓
  void roundBtn_actionPerformed(ActionEvent e) {
    this.drawRoundItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備畫橢圓
  void ellipseBtn_actionPerformed(ActionEvent e) {
    this.drawEllipseItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備畫填充圓
  void fillRoundBtn_actionPerformed(ActionEvent e) {
    this.drawFillOvalItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備畫矩形
  void rectBtn_actionPerformed(ActionEvent e) {
    this.drawRectangleItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備畫任意線段
  void randomLineBtn_actionPerformed(ActionEvent e) {
    this.drawRandomItem_actionPerformed(e);
  }
  //工具欄快捷鍵準備輸出文字
  void textWriteBtn_actionPerformed(ActionEvent e) {
    this.writeTextItem_actionPerformed(e);
  }
  //菜單項退出系統
  void exitSystemItem_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
  //工具欄快捷鍵退出系統
  void exitBtn_actionPerformed(ActionEvent e) {
    this.exitSystemItem_actionPerformed(e);
  }
  //選擇當前繪圖顏色
  void colorBtn_actionPerformed(ActionEvent e) {
    JColorChooser colorChooser = new JColorChooser();
    colour = colorChooser.showDialog(this,"選擇顏色",colorBtn.getForeground());
  }
  //點擊鼠標后進行文字處理
  void jScrollPane1_mouseClicked(MouseEvent e) {
  /*  JOptionPane optionPane = new JOptionPane();
    String text = optionPane.showInputDialog((Component)e.getSource(),"輸入文字：","Dialog for text input",JOptionPane.PLAIN_MESSAGE);
    if(lineType == 7 && text != null){
      g = this.jScrollPane1.getGraphics();
      g.drawString(text,e.getX(),e.getY());
    }*/
  }
  //創建新的繪圖面板
  void newFileBtn_actionPerformed(ActionEvent e) {
    g = this.jScrollPane1.getGraphics();
    g.clearRect(0,0,this.jScrollPane1.getWidth(),this.jScrollPane1.getHeight());
    colour = new Color(122,122,122);
    g.setColor(colour);
    lineType = 0;
  }
  //******************************聲音播放模塊*****************************
  //選擇聲音文件
  void audioFileOpenItem_actionPerformed(ActionEvent e) {
    JFileChooser musicChooser = new JFileChooser();
    int returnVal = musicChooser.showOpenDialog(this);
    if(returnVal == JFileChooser.APPROVE_OPTION){
      try {
        musicURL = musicChooser.getSelectedFile().toURL();
      }
      catch (MalformedURLException ex) {}
    }
  }
  //開始播放音樂
  void playAudioItem_actionPerformed(ActionEvent e) {
    if(musicURL == null)
      return;
    music = Applet.newAudioClip(musicURL);
    music.loop();
  }
  //停止播放音樂
  void abortAudioItem_actionPerformed(ActionEvent e) {
    music.stop();
  }
  //*****************************動畫制作模塊*******************************
  //選擇動畫文件
  void openImageFileItem_actionPerformed(ActionEvent e) {
    JFileChooser imageChooser = new JFileChooser();
    int returnVal = imageChooser.showOpenDialog(this);
    if(returnVal == JFileChooser.APPROVE_OPTION){
      try {
        imageURL = imageChooser.getSelectedFile().toURL();
        imageName = imageChooser.getSelectedFile().getName();
      }
      catch (MalformedURLException ex) {}
    }
  }
  //m_demoType表示動畫類型：1表示縮放平移動畫，2表示不擦除平移動畫，3表示淡入淡出動畫
  //縮放平移動畫，對應的動畫類型值為1
  void zoomHerizonDemoItem_actionPerformed(ActionEvent e) {
    if(imageURL == null)
      return;
    g = this.jScrollPane1.getGraphics();
    ImageIcon icon = new ImageIcon(imageURL,imageName);
    //將圖像裝入內存
    image = icon.getImage();
    //創建當前動畫線程前終止其他動畫線程
    if(thread != null){
      thread.stop();
      thread = null;
    }
    int demoType = 1;
    thread = new DemoThread(image, this.jScrollPane1, demoType);
    thread.start();
  }
  //不擦除平移動畫，對應的動畫類型值為2
  void noEraseHerezonDemoItem_actionPerformed(ActionEvent e) {
    if(imageURL == null)
      return;
    g = this.jScrollPane1.getGraphics();
    ImageIcon icon = new ImageIcon(imageURL,imageName);
    //將圖像裝入內存
    image = icon.getImage();
    //創建當前動畫線程前終止其他動畫線程
    if(thread != null){
      thread.stop();
      thread = null;
    }
    int demoType = 2;
    thread = new DemoThread(image, this.jScrollPane1, demoType);
    thread.start();
  }
  //淡入淡出動畫，對應的動畫類型值為3
  void lightInOutDemoItem_actionPerformed(ActionEvent e) {
/*    if(imageURL == null)
      return;
    g = this.jScrollPane1.getGraphics();
    ImageIcon icon = new ImageIcon(imageURL,imageName);
    image = icon.getImage();
    //創建當前動畫線程前終止其他動畫線程
    if(thread != null){
      thread.stop();
      thread = null;
    }
    int demoType = 3;
    thread = new DemoThread(image, this.jScrollPane1, demoType);
    thread.start();  */
  }
  //終止動畫線程
  void stopDemoItem_actionPerformed(ActionEvent e) {
    if(thread != null){
      thread.stop();
      thread = null;
      g = this.jScrollPane1.getGraphics();
      g.clearRect(0,0,this.jScrollPane1.getWidth(),
                  this.jScrollPane1.getHeight());
    }
  }
  //暫停播放動畫
  void pauseDemoItem_actionPerformed(ActionEvent e) {
    if (thread != null)
      thread.suspend();
  }
  //繼續播放動畫
  void resumeDemoItem_actionPerformed(ActionEvent e) {
    if(thread != null)
      thread.resume();
  }

}

//*************************************系統自動生成代碼****************************
class MainFrame_drawLineItem_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;

  MainFrame_drawLineItem_actionAdapter(MainFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.drawLineItem_actionPerformed(e);
  }
}

class MainFrame_drawRoundItem_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;

  MainFrame_drawRoundItem_actionAdapter(MainFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.drawRoundItem_actionPerformed(e);
  }
}

class MainFrame_drawRectangleItem_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;

  MainFrame_drawRectangleItem_actionAdapter(MainFrame adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.drawRectangleItem_actionPerformed(e);
  }
}

class MainFrame_drawEllipseItem_actionAdapter implements java.awt.event.ActionListener {
  MainFrame adaptee;