Draggable
=========

This demo illustrates user interaction with draggable items.
The green disk can be moved with the mouse, and its color changes dynamically
to red when it leaves the dashed circular zone, then back to green when it re-enters it.

.. raw:: html

   <img src="../media/2d_draggable.gif" alt="2D draggable demo" style="max-width: 100%; height: auto;" />

Full Code
---------

.. literalinclude:: ../../../demo/2d_draggable.py
   :language: python
   :linenos: