Drag 'N' Drop

This is a drag n drop tutorial since it's barely documented. It's very easy, all you need to have is two panels: a receiver and a droppable panel.

How it Works

Panel:Droppable( string name ) takes 1 argument:

• Name - Must match receiver's name to allow dropping

Panel:Receiver( string name, function callback, table menu = nil ) takes 3 arguments:

• Name - Identifier to match droppable panels
• Callback - Function called when dragging/dropping occurs
• Menu Options - Table of strings for right-click menu (optional)

The callback receives:

• self - The receiving panel
• panels - Table of panels being dropped
• dropped - True when actually dropped, false while dragging over
• menuIndex - Index if using right-click menu
• x,y - Drop coordinates relative to receiver

In the example below:

• Red panel can only be dropped on right frame
• Green panel can be dropped on either frame
• When dropped, panels become children of the receiving frame

Basic Example

Here's a complete example showing one-way and two-way drag and drop: