text: """
  Mouse events.
  
  
  How it works
  ------------
  
  The renderer has a 2 dimensional grid of mouse event handlers.
  (`prompt_toolkit.layout.MouseHandlers`.) When the layout is rendered, the
  `Window` class will make sure that this grid will also be filled with
  callbacks. For vt100 terminals, mouse events are received through stdin, just
  like any other key press. There is a handler among the key bindings that
  catches these events and forwards them to such a mouse event handler. It passes
  through the `Window` class where the coordinates are translated from absolute
  coordinates to coordinates relative to the user control, and there
  `UIControl.mouse_handler` is called.
  """
  from __future__ import unicode_literals
  
  __all__ = [
      'MouseEventType',
      'MouseEvent'
  ]
  
  
  class MouseEventType:
      MOUSE_UP = 'MOUSE_UP'
      MOUSE_DOWN = 'MOUSE_DOWN'
      SCROLL_UP = 'SCROLL_UP'
      SCROLL_DOWN = 'SCROLL_DOWN'
  
  
  class MouseEvent(object):
      """
      Mouse event, sent to `UIControl.mouse_handler`.
  
      :param position: `Point` instance.
      :param event_type: `MouseEventType`.
      """
      def __init__(self, position, event_type):
          self.position = position
          self.event_type = event_type
  
      def __repr__(self):
          return 'MouseEvent(%r, %r)' % (self.position, self.event_type)
  