public SeamCarver(Picture picture) {
// create a seam carver object based on the given picture
int picWidth = picture.width();
int picHeight = picture.height();
currentPicture = picture;
pixelColor = new Color[picWidth][picHeight];
for (int i = 0; i < picHeight; i++) {
for (int j = 0; j < picWidth; j++) {
pixelColor[j][i] = picture.get(j, i);
}
}
}
private Picture initialImage() {
pic2 = new Picture(500, 600);
pic1 = new Picture(500, 600);
for (int x = 0; x < pic2.width(); x++)
for (int y = 0; y < pic2.height(); y++) {
double dist = 1.0 - Math.sqrt((x - 300) * (x - 300) + (y - 200) * (y - 200)) / 500;
int red =
(int)
(dist < 0.5
? 0
: Math.min(Math.pow(dist, 0.4) + Math.pow(dist - 0.5, 0.1), 1.0) * 255);
int green = (int) (dist * 255);
int blue = 0;
pic2.set(x, y, new Color(red, green, blue));
}
return pic2;
}
public void actionPerformed(ActionEvent e) {
String cmd = (e.getActionCommand());
if (cmd.equals(aboutItem.getText()))
JOptionPane.showMessageDialog(
this,
"Simple Image Program for DB2004\nversion 0.1\nThanks to BvS",
"About imageLab",
JOptionPane.INFORMATION_MESSAGE);
else if (cmd.equals(quitItem.getText())) System.exit(0);
else if (cmd.equals(openItem.getText())) {
int returnVal = chooser.showOpenDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
try {
pic2 = new Picture(chooser.getSelectedFile().getName());
pic1 = new Picture(pic2.width(), pic2.height());
lab.setIcon(pic2.getJLabel().getIcon());
sliderPanel.setVisible(false);
pack();
repaint();
} catch (Exception ex) {
JOptionPane.showMessageDialog(
this,
"Could not open " + chooser.getSelectedFile().getName() + "\n" + ex.getMessage(),
"Open Error",
JOptionPane.INFORMATION_MESSAGE);
}
}
} else if (cmd.equals(saveItem.getText())) {
int returnVal = chooser.showSaveDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
try {
pic2.save(chooser.getSelectedFile().getName());
} catch (Exception ex) {
JOptionPane.showMessageDialog(
this,
"Could not write " + chooser.getSelectedFile().getName() + "\n" + ex.getMessage(),
"Save Error",
JOptionPane.INFORMATION_MESSAGE);
}
}
}
}
public int width() {
// width of current picture
return currentPicture.width();
}