painter.java

用JAVA编的画图编辑器的代码

    if(!changed)
      return;

    File file = modelFile;
    if(file == null) {
      file = showDialog("Save Picture",
                        "Save",
                        "Save the Picture",
                        's',
                        new File(files.getCurrentDirectory(), savefilename));
          System.out.println("\nunknown");
      if(file == null || (file.exists() &&                      // Check for existence
        JOptionPane.NO_OPTION ==          // Overwrite warning
            JOptionPane.showConfirmDialog(painter.this,
                                          file.getName()+" exists. Overwrite?",
                                          "Confirm Save As",
                                          JOptionPane.YES_NO_OPTION,
                                          JOptionPane.WARNING_MESSAGE)))
                                          return;                            // No selected file
    }
    savePicture(file);    
  }

// Display a custom file save dialog
  private File showDialog(String dialogTitle,
                          String approveButtonText,
                          String approveButtonTooltip,
                          char approveButtonMnemonic,
                          File file) {                // Current file - if any

    files.setDialogTitle(dialogTitle);
    files.setApproveButtonText(approveButtonText);
    files.setApproveButtonToolTipText(approveButtonTooltip);
    files.setApproveButtonMnemonic(approveButtonMnemonic);
    files.setFileSelectionMode(files.FILES_ONLY);
    files.rescanCurrentDirectory();
    files.setSelectedFile(file);

    
    int result = files.showDialog(painter.this, null);  // Show the dialog
    return (result == files.APPROVE_OPTION) ? files.getSelectedFile() : null;
  }

 private void savePicture(File outFile) {
    try {
	      FileOutputStream out=new FileOutputStream(outFile);
	    	      
      //oukt.writeObject(getImage());        
      out.close();                               // Flush & close it
    } catch(IOException e) {
      System.err.println(e);
      /*JOptionPane.showMessageDialog(SketchFrame.this,
                                    "Error writing a sketch file.",
                                    "File Output Error",
                                    JOptionPane.ERROR_MESSAGE);*/
      return;                                    // Serious error - return
    }
    if(outFile != modelFile) {             // If we are saving to a new file
                                           // we must update the window
      modelFile = outFile;                       // Save file reference
      filename = modelFile.getName();            // Update the file name
      setTitle(frameTitle + modelFile.getPath());  // Change the window
                                                   // title
    }
    	changed = false;                       // Set as unchanged
  }





class RWindow extends JDialog{
	public RWindow(JFrame frame){
		super(frame, "rotate", true);
	    Container cp = getContentPane();
	    ButtonGroup g = new ButtonGroup();
	    JRadioButton 
	    	flow = new JRadioButton("flow turn", false),
	    	vertical = new JRadioButton("vertical turn", false),
	    	choose = new JRadioButton("choose an angle turn ", false);
	    g.add(flow);
	    g.add(vertical);
	    g.add(choose);
	    
	    ButtonGroup angle = new ButtonGroup();
	        A90= new JRadioButton("90 degree              ", false);
	    	A180 = new JRadioButton("180 degree              ", false);
	    	A270 = new JRadioButton("270 degree              ", false);
	    angle.add(A90);
	    angle.add(A180);
	    angle.add(A270);
	    
	    cp.setLayout(new FlowLayout(FlowLayout.LEADING));
	    cp.add(flow); 
	    cp.add(vertical); 
	    cp.add(choose);
	    
	    cp.add(A90);
	    cp.add(A180);
	    cp.add(A270);
	    A90.setEnabled(false);
	    A180.setEnabled(false);
	    A270.setEnabled(false); 
	    
	    ok=new JButton("OK");
	    cancel=new JButton("Cancel");
	    
		cp.add(ok);
	    cp.add(cancel);
	    
	    setSize(180,300);
	    
	flow.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
					A90.setEnabled(false);
					A180.setEnabled(false);
					A270.setEnabled(false);
				}
		});   
		
	vertical.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
					A90.setEnabled(false);
					A180.setEnabled(false);
					A270.setEnabled(false);
				}
		}); 
	    
	choose.addActionListener(new ActionListener(){
	  	public void actionPerformed(ActionEvent e){
	    	A90.setEnabled(true);
	    	A180.setEnabled(true);
	    	A270.setEnabled(true);
	    	}
	    });
	    
	A90.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				setAngle(Math.PI/2);
				}
		});
		
	A180.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				setAngle(Math.PI);
				}
		});
		
	A270.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				setAngle(Math.PI*1.5);
				}
		});
	    
	ok.addActionListener(new ActionListener(){
		public void actionPerformed(ActionEvent e){
				Transformed tran=new Transformed(getImage(),getAngle(),1);
				/*WindowListener l = new WindowAdapter() {
				    public void windowClosing(WindowEvent e) {System.exit(0);}
				};
				//Frame f = new Frame("Transformed");
				transformW.dispose();
				transformW.addWindowListener(l);
				transformW.add(Transformed);
				transformW.pack();
				//transformW.setSize(new Dimension(600, 300));
				transformW.show();
				setVisible(false);*/
		transform = new Frame("Transformed");		
				WindowListener la = new WindowAdapter() {
	    public void windowClosing(WindowEvent e) {
	    	//System.exit(0);
	    	if(e.getID()==WindowEvent.WINDOW_CLOSING){
					  						dispose();
					  						transform.setVisible(false);	  
			      	  					}
	    		}
			};
		
				transform.addWindowListener(la);
				transform.add("Center",tran);
				transform.pack();
				transform.setSize(new Dimension(1500,1000));
				transform.show();
				Graphics imageabc=transform.getGraphics();
				if(imageabc==null) System.out.println("\nabc");
				//label.setIcon(null);
				/*Image imageabc=tran.gettheImage();
				label.setIcon(new ImageIcon(imageabc));*/
				setVisible(false);					
				changed=true;
						}
					});
	
	cancel.addActionListener(new ActionListener(){
					public void actionPerformed(ActionEvent e){
							setVisible(false);
						}
				});	    
	   
	   }
	}

class SWindow extends JDialog{
		public SWindow(JFrame frame){
				super(frame,"resize",true);
				Container cp=getContentPane();
				JLabel f=new JLabel("flow:     ");
				JLabel v=new JLabel("vertical: ");
				
				fl=new JTextField(6);
				vtc=new JTextField(6);
				
				JLabel p=new JLabel(" %                ");
				JLabel p1=new JLabel(" %                ");
				
				Sok=new JButton("OK");
				Scancel=new JButton("Cancel");
				
				cp.setLayout(new FlowLayout(FlowLayout.CENTER));
				
				Scancel.addActionListener(new ActionListener(){
					public void actionPerformed(ActionEvent e){
							setVisible(false);
						}
				});
							
				cp.add(f);
				cp.add(fl);
				cp.add(p);
				
				cp.add(v);
				cp.add(vtc);
				cp.add(p1);
				
				cp.add(Sok);
				cp.add(Scancel);
				
				setSize(210,150);
				
				Sok.addActionListener(new ActionListener(){
						public void actionPerformed(ActionEvent e){
							//transformW.add("Center",null);
							setsizeX(Double.parseDouble(fl.getText())/100);
							setsizeY(Double.parseDouble(vtc.getText())/100);
							Transformed tranSize=new Transformed(getImage(),getsizeX(),getsizeY(),0);
							transformW = new Frame("Transformed");
								WindowListener l = new WindowAdapter() {
	    							public void windowClosing(WindowEvent e) {
	    								if(e.getID()==WindowEvent.WINDOW_CLOSING){
					  						transformW.setVisible(false);	  
			      	  					}
			      	  				}
								};
								//Frame fra = new Frame("Transformed");
								transformW.addWindowListener(l);
								transformW.add("Center", tranSize);
								transformW.pack();
								transformW.setSize(new Dimension(1500,1000));
								transformW.show();
								
								setVisible(false);
								changed=true;
							}
						});
				}
	}
	
class HTWindow extends JDialog{
		public HTWindow(JFrame frame){
				super(frame,"team information",true);
				Container cp=getContentPane();
				JButton ok=new JButton("OK");
				JTextArea text=new JTextArea("Sunjingwan 03080203"+"\nChukongna 03080207"+"\nGenglu 03080214",3,3);
				cp.setLayout(new FlowLayout(FlowLayout.CENTER));
				cp.add(text);
				cp.add(ok);
				ok.addActionListener(new ActionListener(){
						public void actionPerformed(ActionEvent e){
								setVisible(false);
							}
					});
				setSize(150,150);
				
			}
	}
	
public void setAngle(Double dou){
		angle=dou;
	}
public Double getAngle(){
		return angle;
	}
public void setImage(Image ima){
	image=ima;
}
public Image getImage(){
	return image;
}
public void setsizeX(Double thex){
	sizex=thex;
}
public Double getsizeX(){
	return sizex;
}
public void setsizeY(Double they){
	sizey=they;
}
public Double getsizeY(){
	return sizey;
}
public static void main(String[] args){
		painter paint=new painter();

		
	}
}