/**
* Builds the ActionMap of this canvas with a set of predefined
* <tt>Action</tt>s.
*/
protected void installActions() {
ActionMap actionMap = getActionMap();
actionMap.put(SCROLL_RIGHT_ACTION, new ScrollRightAction(10));
actionMap.put(SCROLL_LEFT_ACTION, new ScrollLeftAction(10));
actionMap.put(SCROLL_UP_ACTION, new ScrollUpAction(10));
actionMap.put(SCROLL_DOWN_ACTION, new ScrollDownAction(10));
actionMap.put(FAST_SCROLL_RIGHT_ACTION, new ScrollRightAction(30));
actionMap.put(FAST_SCROLL_LEFT_ACTION, new ScrollLeftAction(30));
actionMap.put(FAST_SCROLL_UP_ACTION, new ScrollUpAction(30));
actionMap.put(FAST_SCROLL_DOWN_ACTION, new ScrollDownAction(30));
actionMap.put(ZOOM_IN_ACTION, new ZoomInAction());
actionMap.put(ZOOM_OUT_ACTION, new ZoomOutAction());
actionMap.put(RESET_TRANSFORM_ACTION, new ResetTransformAction());
}