How to Copy and Flip a Picture Horizontally

[tecnicamente]

Hello,
I am working on a class that flips a picture on its horizontal axis.
I know that I have to copy the picture and then use the copy to help flip the picture, however I am unsure of what is going wrong.
Any help would be much appreciated.
Thanks,
Tec

class FlipHorizontally implements ActionListener {
public void actionPerformed (ActionEvent e) {
int imageWidth = picture.getWidth();
int imageHeight = picture.getHeight();
Picture copy = new Picture(picture.getWidth(), picture.getHeight());
copy.drawPicture(0,0, picture);
for (int x = 0; x < picture.getWidth(); x++) {
for (int y = 0; y < picture.getHeight(); y++) {
int red = copy.getPixelRed(x,y);
int green = copy.getPixelGreen(x,y);
int blue = copy.getPixelBlue(x,y);
picture.setPixelRed(imageWidth-x, y, red);
picture.setPixelGreen(imageWidth-x, y, green);
picture.setPixelBlue(imageWidth-x, y, blue);
}
}
picture.display();
}
}

[DarrylBurke]

Your code uses classes that are not a part of the JDK, s it's well nigh impossible to offer any meaningful advice.

If you want to learn to use the relevant JDK classes, go through this tutorial:
Trail: 2D Graphics (The Java™ Tutorials)

db