public void squish(Graphics g, ImageIcon icon, int x, int y, double scale) {
if (isVisible()) {
g.drawImage(
icon.getImage(),
x,
y,
(int) (icon.getIconWidth() * scale),
(int) (icon.getIconHeight() * scale),
this);
}
}
public void paint(Graphics g) {
super.paint(g);
if (thumbnail != null) {
int x = getWidth() / 2 - thumbnail.getIconWidth() / 2;
int y = getHeight() / 2 - thumbnail.getIconHeight() / 2;
if (y < 0) {
y = 0;
}
if (x < 5) {
x = 5;
}
thumbnail.paintIcon(this, g, x, y);
}
}
/**
* Sets the icon for the given file.
*
* @param file the file to set an icon for
* @return the byte array containing the thumbnail
*/
private byte[] getFileThumbnail(File file) {
byte[] bytes = null;
if (FileUtils.isImage(file.getName())) {
try {
ImageIcon image = new ImageIcon(file.toURI().toURL());
int width = image.getIconWidth();
int height = image.getIconHeight();
if (width > THUMBNAIL_WIDTH) width = THUMBNAIL_WIDTH;
if (height > THUMBNAIL_HEIGHT) height = THUMBNAIL_HEIGHT;
bytes = ImageUtils.getScaledInstanceInBytes(image.getImage(), width, height);
} catch (MalformedURLException e) {
if (logger.isDebugEnabled()) logger.debug("Could not locate image.", e);
}
}
return bytes;
}
// Inner class to manage help modal diaglog object.
class HelpHandler extends JDialog implements ActionListener {
// Define and initialize AWT container.
Container c = getContentPane();
// Define and initialize Swing widgets.
JButton okButton = new JButton("Check the Java API");
ImageIcon imageIcon = new ImageIcon("surfing.gif");
JLabel image = new JLabel(imageIcon);
// Define and intialize phsyical size dimensions.
int left = 0;
int top = 0;
int buttonWidth = 150;
int buttonHeight = 25;
int imageWidth = imageIcon.getIconWidth();
int imageHeight = imageIcon.getIconHeight();
int offsetMargin = 20;
// The dialog width and height are derived from base objects.
int dialogWidth = imageWidth + offsetMargin;
int dialogHeight = imageHeight + buttonHeight + (3 * offsetMargin);
// --------------------------- Constructor -------------------------------/
// The inner class requires an owning frame and cannot be called from
// a default constructor. So, the default constructor is excluded.
public HelpHandler(Frame owner, boolean modal) {
super(owner, modal);
buildDialogBox();
}
// -------------------------- Begin Methods ------------------------------/
// Method to build the dialog box for help.
private void buildDialogBox() {
// Set the JDialog window properties.
setTitle("Learning about Java");
setResizable(false);
setSize(dialogWidth, dialogHeight);
// Define behaviors of container.
c.setLayout(null);
c.setBackground(Color.cyan);
c.add(image);
c.add(okButton);
// Set the bounds for the image.
image.setBounds(
(dialogWidth / 2) - (imageWidth / 2),
(top + (offsetMargin / 2)),
imageWidth,
imageHeight);
// Set the behaviors, bounds and action listener for the button.
okButton.setBounds(
(dialogWidth / 2) - (buttonWidth / 2),
(imageHeight + (int) 1.5 * offsetMargin),
buttonWidth,
buttonHeight);
// Set the font to the platform default Font for the object with the
// properties of bold and font size of 11.
okButton.setFont(new Font(okButton.getFont().getName(), Font.BOLD, 11));
// Set foreground and background of JButton(s).
okButton.setForeground(Color.white);
okButton.setBackground(Color.blue);
// The class implements the ActionListener interface and therefore
// provides an implementation of the actionPerformed() method. When a
// class implements ActionListener, the instance handler returns an
// ActionListener. The ActionListener then performs actionPerformed()
// method on an ActionEvent.
okButton.addActionListener(this);
// Set the screen and display dialog window in relation to screen size.
dim = tk.getScreenSize();
setLocation((dim.width / 2) - (dialogWidth / 2), (dim.height / 2) - (dialogHeight / 2));
// Display the dialog.
show();
} // End of buildDialogBox method.
// --------------------- Window ActionListener ---------------------------/
// Class listener based on implementing ActionListener.
public void actionPerformed(ActionEvent e) {
// Dispose of the help dialog.
setVisible(false);
dispose();
} // End of actionPerformed method.
// -------------------------- End Methods --------------------------------/
} // End of HelpHandler inner class.