areaviewer.java

传感器网络操作系统contiki。 被广泛应用于环境检测、结构健康监测等等。包括路由协议

        // Add the special pan mouse motion listener
        canvas.addMouseMotionListener(canvasPanModeHandler);
      } else if (e.getActionCommand().equals("set zoom mode")) {
        // Remove all other mouse motion listeners
        for (MouseMotionListener reggedListener: canvas.getMouseMotionListeners())
          canvas.removeMouseMotionListener(reggedListener);
        inSelectMode = false;
        inTrackMode = false;
   
        // Add the special zoom mouse motion listener
        canvas.addMouseMotionListener(canvasZoomModeHandler);
      } else if (e.getActionCommand().equals("set track rays mode")) {
        // Remove all other mouse motion listeners
        for (MouseMotionListener reggedListener: canvas.getMouseMotionListeners())
          canvas.removeMouseMotionListener(reggedListener);
        inSelectMode = false;
        inTrackMode = true;
        
      } else if (e.getActionCommand().equals("toggle show settings")) {
        if (((JCheckBox) e.getSource()).isSelected())
          scrollControlPanel.setVisible(true);
          else
            scrollControlPanel.setVisible(false);
        thisPlugin.invalidate();
        thisPlugin.revalidate();

      }
    }
  };
  
  /**
   * Selects which graphical parts should be painted
   */
  private ActionListener selectGraphicsHandler = new ActionListener() {
    public void actionPerformed(ActionEvent e) {
      if (e.getActionCommand().equals("toggle background"))
        drawBackgroundImage = ((JCheckBox) e.getSource()).isSelected();
      else if (e.getActionCommand().equals("toggle obstacles"))
        drawCalculatedObstacles = ((JCheckBox) e.getSource()).isSelected();
      else if (e.getActionCommand().equals("toggle channel"))
        drawChannelProbabilities = ((JCheckBox) e.getSource()).isSelected();
      else if (e.getActionCommand().equals("toggle radios"))
        drawRadios = ((JCheckBox) e.getSource()).isSelected();
      else if (e.getActionCommand().equals("toggle radio activity"))
        drawRadioActivity = ((JCheckBox) e.getSource()).isSelected();
      else if (e.getActionCommand().equals("toggle arrow"))
        drawScaleArrow = ((JCheckBox) e.getSource()).isSelected();

      canvas.repaint();
    }
  };

  /**
   * Helps user set a background image which can be analysed for obstacles/freespace.
   */
  private ActionListener setBackgroundHandler = new ActionListener() {
    
    /**
     * Choosable file filter that supports tif, gif, jpg, png, bmp.
     */
    class ImageFilter extends FileFilter {
      public boolean accept(File f) {
        if (f.isDirectory()) {
          return true;
        }
        
        String filename = f.getName();
        if (filename != null) {
          if (filename.endsWith(".tiff") ||
              filename.endsWith(".tif") ||
              filename.endsWith(".gif") ||
              filename.endsWith(".jpg") ||
              filename.endsWith(".jpeg") ||
              filename.endsWith(".png") ||
              filename.endsWith(".bmp")) {
            return true;
          } 
        }
        return false;
      }
      
      public String getDescription() {
        return "All supported images";
      }
    }
    
    class ImageSettingsDialog extends JDialog {
      
      private double
      virtualStartX = 0.0,
      virtualStartY = 0.0,
      virtualWidth = 0.0,
      virtualHeight = 0.0;
      
      private JFormattedTextField
      virtualStartXField,
      virtualStartYField,
      virtualWidthField,
      virtualHeightField;

      private boolean terminatedOK = false;
      
      private NumberFormat doubleFormat = NumberFormat.getNumberInstance();

      /**
       * Creates a new dialog for settings background parameters
       */
      protected ImageSettingsDialog(File imageFile, Image image, Frame owner) {
        super(owner, "Image settings");
        
        JPanel tempPanel;
        setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
        
        // Set layout and add components
        doubleFormat.setMinimumIntegerDigits(1);
        setLayout(new BoxLayout(this.getContentPane(), BoxLayout.Y_AXIS));

        tempPanel = new JPanel(new GridLayout(1, 2));
        tempPanel.add(new JLabel("Start X (m)     "));
        virtualStartXField = new JFormattedTextField(doubleFormat);
        virtualStartXField.setValue(new Double(0.0));
        tempPanel.add(virtualStartXField);
        add(tempPanel);

        tempPanel = new JPanel(new GridLayout(1, 2));
        tempPanel.add(new JLabel("Start Y (m)"));
        virtualStartYField = new JFormattedTextField(doubleFormat);
        virtualStartYField.setValue(new Double(0.0));
        tempPanel.add(virtualStartYField);
        add(tempPanel);

        tempPanel = new JPanel(new GridLayout(1, 2));
        tempPanel.add(new JLabel("Width (m)"));
        virtualWidthField = new JFormattedTextField(doubleFormat);
        virtualWidthField.setValue(new Double(100.0));
        tempPanel.add(virtualWidthField);
        add(tempPanel);

        tempPanel = new JPanel(new GridLayout(1, 2));
        tempPanel.add(new JLabel("Height (m)"));
        virtualHeightField = new JFormattedTextField(doubleFormat);
        virtualHeightField.setValue(new Double(100.0));
        tempPanel.add(virtualHeightField);
        add(tempPanel);

        add(Box.createVerticalGlue());
        add(Box.createVerticalStrut(10));
        
        tempPanel = new JPanel();
        tempPanel.setLayout(new BoxLayout(tempPanel, BoxLayout.X_AXIS));
        tempPanel.add(Box.createHorizontalGlue());

        final JButton okButton = new JButton("OK");
        this.getRootPane().setDefaultButton(okButton);
        final JButton cancelButton = new JButton("Cancel");
        okButton.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            virtualStartX = ((Number) virtualStartXField.getValue()).doubleValue();
            virtualStartY = ((Number) virtualStartYField.getValue()).doubleValue();
            virtualWidth = ((Number) virtualWidthField.getValue()).doubleValue();
            virtualHeight = ((Number) virtualHeightField.getValue()).doubleValue();

            terminatedOK = true;
            dispose();
}
        });
        cancelButton.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            terminatedOK = false;
            dispose();
          }
        });
        
        tempPanel.add(okButton);
        tempPanel.add(cancelButton);
        add(tempPanel);

        // Show dialog
        setModal(true);
        pack();
        setLocationRelativeTo(owner);
        setVisible(true);
      }

      public boolean terminatedOK() {
        return terminatedOK;
      }
      public double getVirtualStartX() {
        return virtualStartX;
      }
      public double getVirtualStartY() {
        return virtualStartY;
      }
      public double getVirtualWidth() {
        return virtualWidth;
      }
      public double getVirtualHeight() {
        return virtualHeight;
      }
    
    }

    public void actionPerformed(ActionEvent e) {
      if (e.getActionCommand().equals("set background image")) {
        
        // Let user select image file
        JFileChooser fileChooser = new JFileChooser();
        ImageFilter filter = new ImageFilter();
        fileChooser.addChoosableFileFilter(filter);
        
        int returnVal = fileChooser.showOpenDialog(canvas);
        
        if (returnVal != JFileChooser.APPROVE_OPTION) {
          // User cancelled
          return;
        } 
        
        File file = fileChooser.getSelectedFile();
        
        // User selected non-supported file, aborting
        if (!filter.accept(file)) {
          logger.fatal("Non-supported file type, aborting");
          return;
        }
        
        logger.info("Opening: " + file.getName() + ".");
        
        // Load image using toolkit and media tracker
        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Image image = toolkit.getImage(file.getAbsolutePath());
        
        MediaTracker tracker = new MediaTracker(canvas);
        tracker.addImage(image, 1);
        
        try {
          tracker.waitForAll();
          if (tracker.isErrorAny()) {
            logger.fatal("Error when loading image: ");
            image = null;
          }
          if (image == null) {
            logger.fatal("Image is null, aborting");
            return;
          }
        } catch (InterruptedException ex) {
          logger.fatal("Interrupted during image loading, aborting");
          return;
        }
        
        // Let user set virtual size of loaded image
        ImageSettingsDialog dialog = new ImageSettingsDialog(file, image, GUI.frame);
        
        if (!dialog.terminatedOK()) {
          logger.fatal("User cancelled, aborting");
          return;
        }

        // Add background image
        backgroundStartX = dialog.getVirtualStartX();
        backgroundStartY = dialog.getVirtualStartY();
        backgroundWidth = dialog.getVirtualWidth();
        backgroundHeight = dialog.getVirtualHeight();
        
        backgroundImage = image;
        backgroundImageFile = file;
      }
    }
  };

  /**
   * Helps user analyze a background for obstacles.
   */
  private ActionListener analyzeObstaclesHandler = new ActionListener() {
    
    class AnalyzeImageDialog extends JDialog {
      
      private NumberFormat intFormat = NumberFormat.getIntegerInstance();
      private BufferedImage imageToAnalyze = null;
      private BufferedImage obstacleImage = null;
      private JPanel canvasPanel = null;
      private boolean[][] obstacleArray = null;
      private boolean exitedOK = false;
      
      private JSlider redSlider, greenSlider, blueSlider, toleranceSlider, sizeSlider;
      
      /**
       * Listens to preview mouse motion event (when picking color)
       */
      private MouseMotionListener myMouseMotionListener = new MouseMotionListener() {
        public void mouseDragged(MouseEvent e) {
          
        }
        public void mouseMoved(MouseEvent e) {
          // Convert from mouse to image pixel position
          Point pixelPoint = new Point(
              (int) (e.getX() * (((double) imageToAnalyze.getWidth()) / ((double) canvasPanel.getWidth()))),
              (int) (e.getY() * (((double) imageToAnalyze.getHeight()) / ((double) canvasPanel.getHeight())))
          );
          
          // Fetch color
          int color = imageToAnalyze.getRGB(pixelPoint.x, pixelPoint.y);
          int red = (color & 0x00ff0000) >> 16;
          int green = (color & 0x0000ff00) >> 8;
          int blue = color & 0x000000ff;

          // Update sliders
          redSlider.setValue(red);
          redSlider.repaint();
          greenSlider.setValue(green);
          greenSlider.repaint();
          blueSlider.setValue(blue);
          blueSlider.repaint();
        }
      };
      
      /**
       * Listens to preview mouse event (when picking color)
       */
      private MouseListener myMouseListener = new MouseListener() {
        public void mouseClicked(MouseEvent e) {
          
        }
        public void mouseReleased(MouseEvent e) {
          
        }
        public void mouseEntered(MouseEvent e) {
          
        }
        public void mouseExited(MouseEvent e) {
          
        }
        public void mousePressed(MouseEvent e) {
          // Stop picking color again; remove mouse listeners and reset mouse cursor