"From: Bill Hibbard " wrote:
>
> Hi Lars,
>
> > I have some code that saves a java.awt.Component to a jpeg
> > file. Is this what you need?
>
> Yes, if you are willing to send me yor code that
> would be a big help. I am tryng to understand why
> our code does not work.
>
> Cheers,
> Bill
Here it is. Give me feedback if you want.
/**
* Saves a component to a jpeg file
*
*
* @param c component to save as a picture
* @param defaultName default file name for saving picture
* @param parent a frame that the FileDialog can be modal to
* @return true if successful
* @author originally written by K.Kal,
* but significant changes and this version by Lars Roe
roex0029@xxxxxxxxxx,
*/
public static boolean saveJPEG(Component c, String defaultName, Frame
parent) {
boolean worked = false;
//Use appropriate initializer for directory here, if needed
String defaultDirectory = System.getProperty("user.home","");
String filename;
FileDialog fd;
Component frame = null;
try {
//Get filename
fd = new FileDialog(parent,
"Save in jpeg format", FileDialog.SAVE);
fd.setDirectory(defaultDirectory);
fd.setFile(defaultName);
fd.setVisible(true);
filename = fd.getFile();
filename = defaultDirectory + "/" + defaultName;
//Save it to the file
//For some reason, I can't get Swing components
// (descendants of JComponent, not
JFrame/JWindow/JDialog)
// to get the graphics correctly, so I use a component
which
// is not to get the graphics (frame). Note: frame need
not
// be a Frame, but in many cases it is.
frame = c;
while (frame instanceof JComponent) {
frame = frame.getParent();
}
java.awt.Dimension area = c.getSize();
Point p1 = frame.getLocationOnScreen();
Point p2 = c.getLocationOnScreen();
java.io.FileOutputStream out = new
java.io.FileOutputStream(filename);
java.awt.image.BufferedImage bi = null;
bi = (java.awt.image.BufferedImage)
c.createImage(area.width, area.height);
java.awt.Graphics g = bi.getGraphics();
g.translate((int) (p1.getX() - p2.getX()), (int)
(p1.getY() - p2.getY()));
frame.paintAll(g);
com.sun.image.codec.jpeg.JPEGImageEncoder encoder
=
com.sun.image.codec.jpeg.JPEGCodec.createJPEGEncoder(out);
encoder.encode(bi);
out.flush();
out.close();
//successful if this far
worked = true;
} catch (Exception e) {
JOptionPane.showMessageDialog(DesktopWindow.defaultWindow,
"Error Saving File", "Could Not Save File",
JOptionPane.ERROR_MESSAGE);
exception = e;
}
return worked;
}
--
Lars Roe
612-624-6711
roex0029@xxxxxxxxxx
