from mojo.events import *

Imports useful helpers when building extensions and scripts requiring app event callbacks.

When subclassing or building tools on top of other tools you can find some embedded tools here

• installTool(tool)
  install tool
• uninstallTool(tool)
  uninstall tool 
• addObserver(observer, method, event)
  Add an observer for a specified event, callbacks will be send to the method of the observer.
• removeObserver(observer, event)
  Removes an observer for a specific event.
• BaseEventObserver
  The base class of an observer. 
• BaseEventTool
  The base class of an Tool 
• EditingTool
  A subclass-able EditingTool 
• MeasurementTool
  A subclass-able MeasurementTool 
• SliceTool
  A subclass-able SliceTool 
• BezierDrawingTool
  A subclass-able BezierDrawingTool