跟踪窗口及其信息

Question

我下面这两个类的观点是，当用户假设打开5个窗口(包含图像的帧)，然后用户点击第二帧并想要关于该图像的信息，我如何获得该帧信息。在我之前的问题中，有人建议做单例枚举，我有点理解并实现了它，但我就是无法理解当用户单击内部框架时，管理器类将如何将路径发送给Info类。

我之前的问题:如何跟踪以前打开的内部帧

这是Manager类:

public class Manager implements ActionListener{
private static int openFrameCount =0;
ImagePlus image;
private static String title;
final String SHOW ="show";
static ImageWindow m;
static JMenuItem showInfo;
static JMenuItem save;
static JDesktopPane desktop;
InfoGui in;
JMenuItem fft;
public Manager(ImagePlus img, String title, JDesktopPane desktop, JMenuItem save, JMenuItem fft, JMenuItem showInfo2){
    image = img;
    this.desktop = desktop;
    this.title = title;
    this.save = save;
    this.fft = fft;
    this.showInfo= showInfo;
}
public enum WindowManager implements InternalFrameListener, ComponentListener {
    INSTANCE;
    public MyInternalFrame frame;
    private Map<ImagePlus, List<MyInternalFrame>> mapWindows;
    private WindowManager(){
        mapWindows = new HashMap<>(25);
    }
    public class MyInternalFrame extends JInternalFrame {
        static final int xPosition = 30, yPosition = 30;
        public MyInternalFrame(String title, ImagePlus img, JMenuItem save) {
            super(title, true,true, true, true);
            setSize(img.getWidth(),img.getHeight());
            // Set the window's location.
            setLocation(xPosition * openFrameCount, yPosition * openFrameCount);
            save.setEnabled(true);
        }
    }
    public JInternalFrame createWindowFor(ImagePlus image) {
        List<MyInternalFrame> frames = mapWindows.get(image);
        if (frames == null) {
            frames = new ArrayList<>(25);
            mapWindows.put(image, frames);
        }
        JPanel panel = new JPanel();
        ImageCanvas c = new ImageCanvas(image);
        c.getImage();
        //panel2.add(new JLabel(new ImageIcon(c.getImage())));
         m = new ImageWindow(image);
        Image n = new Image();
        //frame = new MyInternalFrame(title, img, save,m);
        //ImageCanvas c = m.getCanvas();
        ImagePlus im = new ImagePlus();
        im.setImage(image);
        frame = new MyInternalFrame(image.getTitle(), image, save);
        m.centerNextImage();
        image.getCanvas().setScaleToFit(true);
        panel.add(m.getCanvas());
        panel.setBackground(Color.white);
        frame.add(panel);
        frames.add(frame);
        frame.setVisible(true); 
        frame.setAutoscrolls(true);
        frame.setAutoscrolls(true);
        frame.setOpaque(true);
        desktop.add(frame);
        try {
                frame.setSelected(true);
        } catch (java.beans.PropertyVetoException e) {
        }
        frame.addInternalFrameListener(this);  
        frame.addComponentListener(this);
        return frame;
    }
    public List<MyInternalFrame> getImage() {
        JInternalFrame frame = null;
        return mapWindows.get(title);
    }
    @Override
    public void internalFrameActivated(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
        //showInfo.setEnabled(true);
    }
    @Override
    public void internalFrameClosed(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameClosing(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameDeactivated(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameDeiconified(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
        //showInfo.setEnabled(true);
    }
    @Override
    public void internalFrameIconified(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameOpened(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
        //showInfo.setEnabled(true);
    }

    @Override
    public void componentHidden(ComponentEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void componentMoved(ComponentEvent arg0) {
        // TODO Auto-generated method stub
    }
    @Override
    public void componentResized(ComponentEvent arg0) {
        // TODO Auto-generated method stub
        Rectangle r = frame.getBounds();
        m.getCanvas().fitToWindow(r);
        System.out.println("resized- the real one");
    }
    @Override
    public void componentShown(ComponentEvent arg0) {
        // TODO Auto-generated method stub
    }
}
@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    SADAPP.Manager.WindowManager.MyInternalFrame m = (SADAPP.Manager.WindowManager.MyInternalFrame) WindowManager.INSTANCE.createWindowFor(image);
}
 }

这是我的Info类:

public class Info implements ActionListener{
private static int openFrameCount =0;
ImagePlus image;
private static String title;
final String SHOW ="show";
static ImageWindow m;
JMenuItem showInfo;
static JMenuItem save;
static JDesktopPane desktop;
InfoGui in;
JMenuItem fft;
public Info(ImagePlus img, String title, JDesktopPane desktop, JMenuItem save, JMenu fft){
    image = img;
    this.desktop = desktop;
    this.title = title;
    this.save = save;
    this.fft = fft;
}
public enum WindowManager implements InternalFrameListener, ComponentListener {
    INSTANCE;
    public MyInternalFrame frame;
    private Map<ImagePlus, List<MyInternalFrame>> mapWindows;
    private WindowManager(){
        mapWindows = new HashMap<>(25);
    }
    public class MyInternalFrame extends JInternalFrame {
        static final int xPosition = 30, yPosition = 30;
        public MyInternalFrame(String title, ImagePlus img, JMenuItem save) {
            super(title, true,true, true, true);
            setSize(img.getWidth(),img.getHeight());
            // Set the window's location.
            setLocation(xPosition * openFrameCount, yPosition * openFrameCount);
            save.setEnabled(true);
        }
    }
    public JInternalFrame createWindowFor(ImagePlus image) {
        List<MyInternalFrame> frames = mapWindows.get(image);
        if (frames == null) {
            frames = new ArrayList<>(25);
            mapWindows.put(image, frames);
        }
        frame = new MyInternalFrame(image.getTitle(), image, save);
        JPanel panel = new JPanel();
        JPanel panel2 = new JPanel();
        JTextArea text = new JTextArea();
        String info = "Image Information: nn";
        info += "Image Name: "+image.getTitle()+ "n";
        info += "Pixel Size: ";
        info += (image.getHeight() +" x "+image.getWidth() +"n");
        info += ("Bit Depth: " + image.getBitDepth() + "-bit"+"n");
        info+= "Bytes/Pixel: "+image.getBytesPerPixel() + "n";
        info += "Type of: "+image.getType()+ "n";
        info += "Diplay range: " + image.getDisplayRangeMax() +"n";
        info += "Display range(min): " + image.getDefault16bitRange() + "n";
        info += image.getFileInfo();
        info += image.getInfoProperty();
        //System.out.println(info);
        text.setText(info);
        System.out.println(image.getHeight());
        text.setVisible(true);
        text.setEditable(false);
        //text.setBackground(new Color(0,0,0,0));
        panel.add(text);
        JScrollPane scroll = new JScrollPane(panel);
        ImageWindow m = new ImageWindow(image);
        panel2.add(new JLabel(new ImageIcon(image.getImage())));
        JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scroll, panel2);
        splitPane.setOpaque(true);
        panel.setMinimumSize(new Dimension(500,100));
        panel.setBackground(new Color(0,0,0,0));
        panel2.setMinimumSize(new Dimension(200,30));
        splitPane.setOneTouchExpandable(true);
        splitPane.setDividerLocation(290);
        frame.add(splitPane);
        frame.setVisible(true); 
        desktop.add(frame);
        try {
                frame.setSelected(true);
        } catch (java.beans.PropertyVetoException e) {
        }
       frame.addInternalFrameListener(this);  
        return frame;
    }
    public List<MyInternalFrame> getFromFor(ImagePlus image) {
        JInternalFrame frame = null;
        return mapWindows.get(title);
    }
    @Override
    public void internalFrameActivated(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
    }
    @Override
    public void internalFrameClosed(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameClosing(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameDeactivated(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameDeiconified(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
    }
    @Override
    public void internalFrameIconified(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void internalFrameOpened(InternalFrameEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(true);
    }

    @Override
    public void componentHidden(ComponentEvent arg0) {
        // TODO Auto-generated method stub
        save.setEnabled(false);
    }
    @Override
    public void componentMoved(ComponentEvent arg0) {
        // TODO Auto-generated method stub
    }
    @Override
    public void componentResized(ComponentEvent arg0) {
        // TODO Auto-generated method stub
        Rectangle r = frame.getBounds();
        m.getCanvas().fitToWindow(r);
        System.out.println("resized- the real one");
    }
    @Override
    public void componentShown(ComponentEvent arg0) {
        // TODO Auto-generated method stub
    }
}
@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    JInternalFrame b = WindowManager.INSTANCE.createWindowFor(image);
}
 }

在主类中，如果用户单击打开并选择图像，我将:

 v= new Manager(img, s, desktop, save, fft,showInfo);
 ActionEvent e = null;
v.actionPerformed(e);

打开图像窗口，现在假设用户又打开了4张图像，所以这个函数又被调用了4次。现在我希望当用户单击一个帧然后单击showInfo时，我希望info类获取图像标题并显示信息。这就是我所做的:

List<MyInternalFrame> v =  WindowManager.INSTANCE.getImage();
ImagePlus i = new ImagePlus(v.get(0).getTitle());    //This is where the image is null
Info n = new Info(i,i.getTitle(), desktop, save, fft);
ActionEvent s = null;
n.actionPerformed(s);

这是我有麻烦!!!!!!我希望任何人都能发现这个错误。提前感谢。

Answer 1

我看到的一件事是，通常会使用addActionListener()来注册侦听器，而不是在Java中直接调用actionPerformed。就像:

someComponent.addActionListener(new Manager());

操作监听器，也就是Manager，必须与一个实际的组件相关联