Custom DragAndDrop in Java
I Have a JList with custom objects. I w开发者_StackOverflow社区ould like to select the object from the list and drag and drop to a JPanel. But I'm confused about all terms in DnD tutorials. I think is there more than one way to solve it.
In the source, jlist, What are the key interfaces I have to implement and what classes do I need to call? And in the target JPanel?
Thanks
Thanks all. I solved with this approach.
Drag and Drop of complex custom objects in Java
test it http://www.javaworld.com/javatips/jw-javatip97.html?page=1
public void dragGestureRecognized(DragGestureEvent e) {
.....e.startDrag(cursor, new TransferableElement2D(myTransfer), this);
and do create a custom Transferable
public class TransferableElement2D implements Transferable {
/*objecto to transfer with dnd*/
Element2D element2d;
public TransferableElement2D(Element2D element2d) {
this.element2d = element2d;
}
public synchronized DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { DataFlavor.stringFlavor };
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
return true;
}
public synchronized Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (isDataFlavorSupported(flavor)) {
return element2d;
} else {
throw new UnsupportedFlavorException(flavor);//19209ea19209ea
}
}
}
精彩评论