I have a problem with a DnD program, so when I add 2 or more images and apply a filter to one of the images (using a right click), it only appears on the last image added.
I think i have to store the image in an Array while waiting for the user to decide to use or not the right click to add a filter to one or all the imported images (via DnD). if u have any idea how to do that please help :)
Here's my code:
public class CompressedImage {
public static StretchIcon getPhotoSI(String imageStr) {
return new StretchIcon(imageStr);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
| UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame f = new JFrame("Testing");
JLabel l = new JLabel("Drop here");
JDesktopPane jdp = new JDesktopPane();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(1000, 600);
f.setLocationRelativeTo(null);
f.add(l);
l.setHorizontalAlignment(JLabel.CENTER);
f.setVisible(true);
l.setTransferHandler(new TransferHandler() {
private static final long serialVersionUID = 1L;
public static final DataFlavor[] SUPPORTED_DATA_FLAVORS = new DataFlavor[] { DataFlavor.javaFileListFlavor,
DataFlavor.imageFlavor };
@Override
public boolean canImport(TransferHandler.TransferSupport support) {
System.out.println("1");
boolean canImport = false;
for (DataFlavor flavor : SUPPORTED_DATA_FLAVORS) {
if (support.isDataFlavorSupported(flavor)) {
canImport = true;
break;
}
}
return canImport;
}
StretchIcon icon;
Image image;
List<?> files;
Component component;
Transferable t;
public boolean importData(TransferHandler.TransferSupport support) {
System.out.println("2");
int openFrameCount = 0;
final int xOffset = 30;
final int yOffset = 30;
JInternalFrame mb = new JInternalFrame("Frame title4" + (++openFrameCount), true, true, true);
mb.setLocation(xOffset * openFrameCount, yOffset * openFrameCount);
JLabel la = new JLabel();
jdp.add(mb);
l.add(mb);
mb.add(la);
class PopUpDemo extends JPopupMenu {
private static final long serialVersionUID = 1L;
JMenuItem anItem;
public PopUpDemo() {
anItem = new JMenuItem("Gray Scale");
add(anItem);
System.out.println("Right click Creadted");
anItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
}
private void jMenuItem1ActionPerformed(ActionEvent evt) {
System.out.println("filter");
int width = image.getWidth(la);
int height = image.getHeight(la);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int p = ((BufferedImage) image).getRGB(x, y);
int a = (p >> 24) & 0xff;
int r = (p >> 16) & 0xff;
int g = (p >> 8) & 0xff;
int b = p & 0xff;
int avg = (r + g + b) / 3;
p = (a << 24) | (avg << 16) | (avg << 8) | avg;
((BufferedImage) image).setRGB(x, y, p);
}
}
}
});
}
}
class PopClickListener extends MouseAdapter {
public void mousePressed(MouseEvent e) {
if (e.isPopupTrigger())
doPop(e);
mb.requestFocusInWindow();
la.requestFocusInWindow();
}
public void mouseReleased(MouseEvent e) {
if (e.isPopupTrigger())
doPop(e);
mb.requestFocusInWindow();
la.requestFocusInWindow();
}
private void doPop(MouseEvent e) {
PopUpDemo menu = new PopUpDemo();
menu.show(e.getComponent(), e.getX(), e.getY());
}
}
mb.addMouseListener(new PopClickListener());
if (canImport(support)) {
try {
t = support.getTransferable();
component = support.getComponent();
if (component instanceof JLabel) {
image = null;
if (support.isDataFlavorSupported(DataFlavor.imageFlavor)) {
image = (BufferedImage) t.getTransferData(DataFlavor.imageFlavor);
} else if (support.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
files = (List<?>) t.getTransferData(DataFlavor.javaFileListFlavor);
if (files.size() > 0) {
System.out.println(": " + files.get(0));// path
System.out.println(": " + files);// path
image = ImageIO.read((File) files.get(0));
// Internal Frame Size & Show
if (image.getWidth(la) < 120 || image.getHeight(la) < 120) {
mb.setSize(image.getWidth(la) * 2, image.getHeight(la) * 2);
mb.setMinimumSize(
new Dimension(image.getWidth(la) * 2, image.getHeight(la) * 2));
} else if (image.getWidth(la) > 1200 || image.getHeight(la) > 1200) {
mb.setSize(image.getWidth(la) / 4, image.getHeight(la) / 4);
mb.setMinimumSize(new Dimension(180, 180));
} else {
mb.setSize(image.getWidth(la), image.getHeight(la));
mb.setMinimumSize(new Dimension(180, 180));
}
mb.show();
// End Internal Frame Size & Show
}
}
icon = null;
if (image != null) {
icon = new StretchIcon(image);
}
la.setIcon(icon);
return true;
}
} catch (Exception exp) {
exp.printStackTrace();
}
}
return true;
}
});
}
}(i'm still new to java and swing)
Thank you in advance.