main.java

jpeg2000编解码

	    if((ext.equalsIgnoreCase(".pgm") && fa.nc!=1) ||
	       (ext.equalsIgnoreCase(".pgx") && fa.nc!=1)) {
		for(int c=1; c<=fa.nc; c++) {
		    (new File(prefix+"-"+c+ext)).delete();
		}
	    } else {
		fa.srcFile.delete();
	    }
	}
        intFrameHt.remove(f);
	menuWindow.remove((JCheckBoxMenuItem)windowHt.get(f));
	windowHt.remove(f);
	rulesItem.setEnabled(false);
    }
    public void internalFrameDeactivated(InternalFrameEvent e) {}
    public void internalFrameDeiconified(InternalFrameEvent e) {}
    public void internalFrameIconified(InternalFrameEvent e) {}
    public void internalFrameOpened(InternalFrameEvent e) {}
    /** An internal frame is activated when selected by the mouse or
     * the menu or when an other one has been closed. */
    public void internalFrameActivated(InternalFrameEvent e) {
        JInternalFrame f = desktop.getSelectedFrame();
        FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
        if(fA==null) return;

	// Enable image saving operation.
	saveFile.setEnabled(true);
	// Enable display of information
	infoFile.setEnabled(true);

	// Update rules check box
	rulesItem.setEnabled(true);
	if(fA.scrollPane!=null) {
	    rulesItem.setEnabled(true);
	    if(fA.scrollPane.getRowHeader()==null) {
		rulesItem.setSelected(false);
		enableZoom(true);
	    } else {
		rulesItem.setSelected(true);
		enableZoom(false);
	    }
	} else {
	    rulesItem.setSelected(false);
	    rulesItem.setEnabled(false);
	}
	
	// Update window Menu
	JCheckBoxMenuItem fcb = (JCheckBoxMenuItem)windowHt.get(f);
	fcb.setSelected(true);
	if(f.isIcon()) {
	    try {
		f.setMaximum(true);
	    } catch (java.beans.PropertyVetoException pve) {}
	}

	// Display number of components and image dimension in the status bar
        if(fA.nc==1) {
            statusLbl.setText("1 component, "+fA.imgCo.width+
			      "x"+fA.imgCo.height);
        } else if(fA.nc>1) {
            statusLbl.setText(fA.nc+" components, "+fA.imgCo.width+
			      "x"+fA.imgCo.height);
        }
    }

    /** Create the menuBar of the application */
    private JMenuBar createMenuBar() {
        ///// File /////
        JMenu file = new JMenu("File");
        file.add(openFile);
        file.add(saveFile);
        file.add(infoFile);
        file.addSeparator();
	//// Encryption keys ////
	JMenu encryptKey = new JMenu("Encryption keys");
	genKey = new JMenuItem("Generate RSA keys pair...");
	encryptKey.add(genKey);
	saveKey = new JMenuItem("Save RSA key...");
	encryptKey.add(saveKey);
	JMenuItem mngKey = new JMenuItem("Manage RSA key...");
	encryptKey.add(mngKey);
	file.add(encryptKey);
	//// Last Opened files ////
	file.add(mOpenedFile);
	for(int i=0; i<lastOpenedFiles.length; i++) {
	    if(lastOpenedFiles[i]==null) {
		continue;
	    }
	    lofItem[i] = new JMenuItem(lastOpenedFiles[i].getPath());
	    lofItem[i].addActionListener(new ActionListener() {
		    public void actionPerformed(ActionEvent e) {
			OpenImage oi = new OpenImage(Main.this,desktop,
						     e.getActionCommand());
			if(oi.isFileSelected()) {
			    oi.run();
			}
		    }
		});
	    mOpenedFile.add(lofItem[i]);
	}
	//// Exit ////
	file.addSeparator();
        JMenuItem exit = new JMenuItem("Exit");
        file.add(exit);

        ///// Image /////
        JMenu imageMenu = new JMenu("Image");
        ///// Zoom /////
        JMenu zoomMenu = new JMenu("Zoom");
        zoomIn = new JMenuItem("Zoom in");
        zoomMenu.add(zoomIn);
        zoomOut = new JMenuItem("Zoom out");
        zoomMenu.add(zoomOut);
        zoomOrig = new JMenuItem("Full resolution");
        zoomMenu.add(zoomOrig);
        enableZoom(false);
        imageMenu.add(zoomMenu);

	///// Tools /////
	JMenu toolMenu = new JMenu("Tools");
        rulesItem = new JCheckBoxMenuItem("Ruler",false);
	rulesItem.setEnabled(false);
        toolMenu.add(rulesItem);

	///// Window /////
	menuWindow = new JMenu("Window");
	JMenuItem reorgWin = new JMenuItem("Reorganize windows");
	menuWindow.add(reorgWin);
	menuWindow.addSeparator();

        ///// Help /////
        JMenu menuHelp = new JMenu("Help");
        JMenuItem aboutGuiMenu = new JMenuItem("About GUI");
        menuHelp.add(aboutGuiMenu);
	JMenuItem aboutCryptix = new JMenuItem("About Cryptix");
	menuHelp.add(aboutCryptix);

        // Accelerators
        exit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,0));
        zoomIn.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_I,0));
        zoomOut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,0));
        zoomOrig.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,0));

        // Listener's
	mngKey.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    rsaSupport.createMngKeyUI(Main.this,RSASupport.
					      DISPLAY_BOTH);
		}
	    });
	saveKey.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    rsaSupport.createSaveKeyUI(Main.this);
		}
	    });
	genKey.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    rsaSupport.createKeyGenUI(Main.this);
		}
	    });
        exit.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) { 
		    terminateApplication();
		}
            });
	reorgWin.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
                    JInternalFrame[] frames = desktop.getAllFrames();
		    numOpenedFrame = 0;
                    for(int i=0; i<frames.length; i++) {
			frames[i].setLocation(FRAME_INCR*numOpenedFrame,
					      FRAME_INCR*numOpenedFrame);
			numOpenedFrame++;
			try {
			    frames[i].setSelected(true);
			} catch(java.beans.PropertyVetoException pve) {}
		    }		    
		}
	    });
        zoomOrig.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    zoomOriginal();
                }
            });
        zoomIn.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    zoomInImage();
                }
            });
        zoomOut.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    zoomOutImage();
                }
            });
        aboutGuiMenu.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
//                     JOptionPane.
//                         showMessageDialog(null,aboutMessage,"About GUI",
//                                           JOptionPane.INFORMATION_MESSAGE,
//                                           new ImageIcon("gui/icons/"+
// 							"2kancolor.jpg"));
                    JOptionPane.
                        showMessageDialog(null,aboutMessage,"About",
                                          JOptionPane.INFORMATION_MESSAGE,
                                          new ImageIcon(this.getClass().
							getResource("icons/"+
							"2kancolor.jpg")));
                }
            });
// 	aboutCryptix.addActionListener(new ActionListener() {
// 		public void actionPerformed(ActionEvent e) {
// 		    JOptionPane.
// 			showMessageDialog(null,"Cryptix 3.2.0\n"+
// 					  "Copyright(c) 1995, 1996, 1997,\n"+
// 					  "1998, 1999, 2000 The Cryptix "+
// 					  "Foundation Limited.\nAll rights "+
// 					  "reserved.", "About Cryptix",
// 					  JOptionPane.INFORMATION_MESSAGE,
// 					  new ImageIcon("gui/icons/"+
// 							"cryptix.gif"));
// 		}
// 	    });
	aboutCryptix.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    JOptionPane.
			showMessageDialog(null,"Cryptix 3.2.0\n"+
					  "Copyright(c) 1995, 1996, 1997,\n"+
					  "1998, 1999, 2000 The Cryptix "+
					  "Foundation Limited.\nAll rights "+
					  "reserved.", "About Cryptix",
					  JOptionPane.INFORMATION_MESSAGE,
					  new ImageIcon(this.getClass().
							getResource("icons/"+
							"cryptix.gif")));
		}
	    });
	rulesItem.addItemListener(new ItemListener() {
		public void itemStateChanged(ItemEvent e) {
                    JInternalFrame f = desktop.getSelectedFrame();
		    FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
		    if(fA==null) return;
		    if(fA.scrollPane==null) return;
		    
 		    if(rulesItem.isSelected()) {
			Rule columnView = new Rule(Rule.HORIZONTAL,fA.imgPan,
						   fA.imgCo,fA.scrollPane);
			columnView.setPreferredWidth(20);
			Rule rowView = new Rule(Rule.VERTICAL,fA.imgPan,
						fA.imgCo,fA.scrollPane);
			rowView.setPreferredHeight(20);
			fA.scrollPane.setRowHeaderView(rowView);
			fA.scrollPane.setColumnHeaderView(columnView);
		    } else {
			fA.scrollPane.setRowHeaderView(null);
			fA.scrollPane.setColumnHeaderView(null);
		    }
		}
	    });
	JMenuBar menuBar = new JMenuBar();
        menuBar.add(file);
        menuBar.add(imageMenu);
        menuBar.add(toolMenu);
	menuBar.add(menuWindow);
        menuBar.add(menuHelp);
	return menuBar;
    }

    /** Zoom out of the current image and update the frame title */
    private void zoomOutImage() {
        JInternalFrame f = desktop.getSelectedFrame();
        FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
        if(fA==null) return;

        fA.imgPan.zoomOut();
        double zf = fA.imgPan.getZoomFactor();
        if(zf==1) {
            f.setTitle(fA.title+" (100%)");
        } else {
            f.setTitle(fA.title+" ("+(1/zf*100)+"%)");
        } 
    }

    /** Zoom in the current image and update the frame title */
    private void zoomInImage() {
        JInternalFrame f = desktop.getSelectedFrame();
        FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
        if(fA==null) return;

        fA.imgPan.zoomIn();
        double zf = fA.imgPan.getZoomFactor();
        if(zf==1) {
            f.setTitle(fA.title+" (100%)");
        } else {
            f.setTitle(fA.title+" ("+(1/zf*100)+"%)");
        } 
    }

    /** Display the current image at its full resolution and update
     * the title */
    private void zoomOriginal() {
        JInternalFrame f = desktop.getSelectedFrame();
        FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
        if(fA==null) return;

        fA.imgPan.zoomFull();
        f.setTitle(fA.title+" (100%)");
    }

    /** Create the toolBar of the application */
    private JToolBar createToolBar() {
	JToolBar toolBar = new JToolBar();
	toolBar.setBackground(Color.lightGray);
	
	// Open Button
        toolBar.add(openFile);
	toolBar.add(saveFile);
	toolBar.addSeparator();
        toolBar.add(infoFile);
        return toolBar;
    }

    /** 
     * Method called to add an internal frame (containing a decoded image) to
     * the main application 
     *
     * @param f JInternalFrame containing the displayed image.
     * @param fa FrameAttribute instance
     * */ 
   public void addInternalFrame(JInternalFrame f,FrameAttribute fA) {
        // Terminate frame initialization
        f.addInternalFrameListener(this);
	if(desktop.getSelectedFrame()!=null) {
	    Point pt = desktop.getSelectedFrame().getLocation();
	    f.setLocation(pt.x+FRAME_INCR,pt.y+FRAME_INCR);
	} else {
	    f.setLocation(FRAME_INCR*numOpenedFrame,FRAME_INCR*numOpenedFrame);
	}
	numOpenedFrame++;

	// Add a border around the Viewport 
	if(fA.scrollPane!=null) {
	    fA.scrollPane.
		setViewportBorder(BorderFactory.
				  createBevelBorder(BevelBorder.LOWERED));
	}
	f.pack();	

        // Add the frame in the frame hash table
        intFrameHt.put(f,fA);

	// Add zoom percentage to the title
	if(fA.imgPan!=null) {
	    double zf = fA.imgPan.getZoomFactor();
	    if(zf==1) {
		f.setTitle(fA.title+" (100%)");
	    } else {
		f.setTitle(fA.title+" ("+(1/zf*100)+"%)");
	    } 
	}
        f.setFrameIcon(null);
	f.setVisible(true);

	// Add frame in the window hash table and in the window menu
	JCheckBoxMenuItem fcb = new JCheckBoxMenuItem(fA.title,true);
	menuWindow.add(fcb);
	windowGroup.add(fcb);
	windowHt.put(f,fcb);
	fcb.addItemListener(new ItemListener() {
		public void itemStateChanged(ItemEvent e) {
		    if(e.getStateChange()==ItemEvent.SELECTED) {
			JInternalFrame frame = null;
			Enumeration keys = windowHt.keys();
			while(keys.hasMoreElements()) {
			    JInternalFrame fTmp = 
				(JInternalFrame)keys.nextElement();

			    if(((JCheckBoxMenuItem)windowHt.get(fTmp))==
			       ((JCheckBoxMenuItem)e.getItem())) {
				frame = fTmp;
				try {
				    frame.setSelected(true);
				} catch(java.beans.PropertyVetoException pve)
				    {}
			    }
			}
		    }
		}
	    });

	// Finally add the frame to the desktop and give it the focus
        desktop.add(f);
        try {
            f.setSelected(true);
        } catch(java.beans.PropertyVetoException e) {}
    }

    /** 
     * Rename the internal frame and modify the value in the
     * Hashtable. This is normally called when the current image is
     * saved to a file. Then the old file is deleted if it was
     * temporary and the new file is no more considered as
     * temporary. */
    public void renameFrame(File newFile) {
        JInternalFrame f = desktop.getSelectedFrame();
        FrameAttribute fA = (FrameAttribute)intFrameHt.get(f);
	if(fA.isTemporaryFile) {
	    String name = fA.srcFile.getPath();
	    String ext = name.substring(name.lastIndexOf('.'),name.length());
	    String prefix = name.substring(0,name.lastIndexOf('.'));
	    if((ext.equalsIgnoreCase(".pgm") && fA.nc!=1) ||
	       (ext.equalsIgnoreCase(".pgx") && fA.nc!=1)) {
		for(int c=1; c<=fA.nc; c++) {
		    (new File(prefix+"-"+c+ext)).delete();
		}
	    } else {
		fA.srcFile.delete();
	    }
	}
        fA.srcFile = newFile;
	fA.isTemporaryFile = false;
        f.setTitle(newFile.getName());
    }

    /** Enable or disable all zooming operations */
    public void enableZoom(boolean status) {
        zoomIn.setEnabled(status);
        zoomOut.setEnabled(status);
        zoomOrig.setEnabled(status);
    }

    /** Main method */
    public static void main(String[] argv) {
        Main frame = new Main();
        frame.setVisible(true);
    }
}