drag'n'drop on glcanvas

OpenGL Development JOGL Development
#1

hello,

does anyone know of a possibility to catch events when a file from the system (e.g. windows explorer) is dragged onto the glcanvas?

thanks!

#2

I suspect that it’s possible through AWT or SWING, but I’ve never personally used it. If so these aren’t part of JOGL; rather part of the java GUI API.

Suggestion: search google: “AWT drag drop” or “SWING drag drop”.

Good luck!

#3

I have barely any experience with this but look into java.awt.dnd.DropTarget and associating a DropTarget with the GLCanvas. Then experiment with the events you receive through it when you do the drag and drop action. I know this works with Swing widgets, and believe Swing’s support is built on top of the low-level support in the AWT, so I believe it should be possible.

#4

thanks, but how do i add a DropTarget to the GLCanvas, i cant find an appropriate function for that.

#5

Hi,

Looking at on of the DropTarget constructors seems to give a clue?


DropTarget

public DropTarget(Component c,
                  DropTargetListener dtl)
           throws HeadlessException

    Creates a DropTarget given the Component to associate itself with, and the DropTargetListener to handle event processing.

    The Component will receive drops only if it is enabled.
#6

See java.awt.Component.setDropTarget().

#7

thanks it works now!