pictureplatform.java

java课的作业

	class newActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.setBackground(Color.WHITE);
			mp.clear();
		}
	}
	class OpenL implements ActionListener {
		private int x = 10;
		private int y = 10;
	    public void actionPerformed(ActionEvent e) {
	      JFileChooser c = new JFileChooser(new File("."));
	      c.setFileSelectionMode(JFileChooser.FILES_ONLY);

	      int rVal = c.showOpenDialog(PicturePlatform.this);
	      if(rVal == JFileChooser.APPROVE_OPTION) 
	      {
	      	File file = c.getSelectedFile();
	      	String name = file.getName();
	      	for(int i = name.length()-1; i >= 0; i --)
	      	{
	      		if(name.charAt(i) == '.')
	      			{
	      				name = name.substring(i+1);
	      				if(name.equals("jpg") || name.equals("gif")||
	      					name.equals("PNG"))
	      				{
	      					try
							{
	      						BufferedImage im = ImageIO.read(file);
	      						mp.getGraphics().drawImage(im,x,y,mp);
	      						BufferedImage cp = ImageIO.read(file);
	      						mp.loadImage(im,cp,x,y);
	      						mp.setFile(file);
							}
	      					catch(IOException ioe)
							{
	      						ioe.printStackTrace();	
							}
	      				}
	      				else if(name.equals("roger"))
						{
	      					try
							{
      							mp.clear();
	      						ObjectInputStream input = new ObjectInputStream(new FileInputStream(file));
	      						Shape temp = null;
	      						int tempIndex = input.readInt();
	      						for(i = 1; i < tempIndex; i ++)
	      						{
	      							temp = (Shape)input.readObject();	
	      							mp.item[i] = temp;
	      						}
	      						mp.index = tempIndex - 1;
	      						mp.repaint();
	      						Color tempColor = (Color)input.readObject();
	      						mp.setBackground(tempColor);
	      						input.close();
							}
	      					catch(EOFException endofFileException)
							{
	      			            JOptionPane.showMessageDialog(null,"no more record in file",
	      			                           "class not found",JOptionPane.ERROR_MESSAGE );
	      			        }
	      			        catch(ClassNotFoundException classNotFoundException)
							{
	      			            JOptionPane.showMessageDialog(null,"Unable to Create Object",
	      			                           "end of file",JOptionPane.ERROR_MESSAGE );
	      			        }
	      					catch(IOException ioe)
							{
	      						ioe.printStackTrace();
							}
						}
	      				else
	      				{
	      					JOptionPane.showMessageDialog(null,"can only open format of ' jpg , gif , PNG , roger '",
	      							"WRONG FILE",JOptionPane.ERROR_MESSAGE);
	      				}      						
	      				break;
	      			}
	      			
	      	}
	      }
	    }
	  }
	class SaveL implements ActionListener {
	    public void actionPerformed(ActionEvent e)  {
	      JFileChooser c = new JFileChooser(new File("."));
	      c.setFileSelectionMode(JFileChooser.FILES_ONLY);
	      
	      int rVal = c.showSaveDialog(PicturePlatform.this);
	      if(rVal == JFileChooser.APPROVE_OPTION) 
	      {
	      	File file = c.getSelectedFile();
	      	file.delete();
	      	String name = file.getName();
	      	for(int i = name.length()-1; i >= 0; i --)
	      	{
	      		if(name.charAt(i) == '.')
	      			{
	      				name = name.substring(i+1);
	      				if(name.equals("jpg") || name.equals("gif")||
		      					name.equals("PNG"))
		      				{
	      						if(mp.getImage() != null)
	      						{
	      							try
									{
      									int wideth = mp.getImage().getWidth(null);
      									int height = mp.getImage().getHeight(null);
      									BufferedImage tag = new BufferedImage(wideth,height,BufferedImage.TYPE_4BYTE_ABGR);
                                        //test
      									/*for(i = 1; i <= mp.index; i ++)
      									{
      										if(mp.item[i] instanceof Rect)
      										{
      											int x = ((mp.item[i].x1 - mp.item[i].x2) >= 0)?mp.item[i].x2:mp.item[i].x1;
      											int y = ((mp.item[i].y1 - mp.item[i].y2) >= 0)?mp.item[i].y2:mp.item[i].y1;
      											tag.getGraphics().drawRect(x,y,Math.abs(mp.item[i].x2-mp.item[i].x1),Math.abs(mp.item[i].y2-mp.item[i].y1));
      										}
      									}*/	
      									tag.getGraphics().drawImage(mp.getImage(),0,0,wideth,height,null);
      									FileOutputStream out=new FileOutputStream(file.getAbsoluteFile()); 
      									JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
      									encoder.encode(tag);
      									out.close();
									}
	      							catch(IOException ioe)
									{
	      								ioe.printStackTrace();
									}
	      						}
		      				}
		      				else if(name.equals("roger"))
							{
						      	try
								{
							      	ObjectOutputStream output = new ObjectOutputStream(new FileOutputStream(file));
							      	Shape temp;
							      	output.writeInt(mp.index + 1);
							      	for(i = 1; i <= mp.index; i ++)
							      	{
							      		temp = mp.item[i];
							      		output.writeObject(temp);
							      		output.flush();
							      	}
							      	output.writeObject(mp.getBackground());
							      	output.close();
							      	/*JOptionPane.showMessageDialog(null,file.toString(),
												"WRONG FILE",JOptionPane.DEFAULT_OPTION);*/
								}
						      	catch(IOException ioe)
								{
						      		ioe.printStackTrace();
								}
							}
					      	else
		      				{
		      					JOptionPane.showMessageDialog(null,"can only save format of ' jpg , gif , PNG , roger '",
		      							"WRONG FILE",JOptionPane.ERROR_MESSAGE);
		      				}      						
		      				break;	 
	      			}
	      	}
	      }
	    }
	  }
	class catchRedActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.catchRed();
		}
	}
	class catchGreenActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.catchGreen();
		}
	}
	class catchBlueActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.catchBlue();
		}
	}
	class recoverActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.recover();
		}
	}
	class zoomHalfActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.zoomToHalf();
		}
	}
	class zoomDoubleActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.zoomToDouble();
		}
	}
	class cutActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.cut();
		}
	}
	class changeRActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.changeR();
		}
	}
	class changeLActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.changeL();
		}
	}
	class extendXActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.scaleX();
		}
	}
	class extendYActionListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			mp.scaleY();
		}
	}
	

	public static void main(String[] args) {
		PicturePlatform frame = new PicturePlatform();
		try 
		{
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		} 
		catch(Exception e) 
		{
			throw new RuntimeException(e);
		}
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	    frame.setSize(1200,700);
	    frame.setVisible(true);
	    frame.setResizable(false);
	}
}