Package org.eclipse.gef
Interface MouseWheelHelper
- All Known Implementing Classes:
ViewportMouseWheelHelper
public interface MouseWheelHelper
MouseWheelHelpers provide each EditPart to handle mouse-wheel events in their
own desired way. By default, when mouse-wheel events are generated that have
no stateMask, a default
MouseWheelHandler
delegates the task to the
MouseWheelHelper that is returned by the getAdapter() method of the EditPart
in focus.
The most common usage of MouseWheelHelpers involves scrolling of an EditPart's figure. They should be returned in the EditPart's getAdapter() method.
- Since:
- 3.1
- See Also:
-
Method Summary
Modifier and TypeMethodDescriptionvoid
handleMouseWheelScrolled
(Event event) Handles mouse-wheel events.
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Method Details
-
handleMouseWheelScrolled
Handles mouse-wheel events. If the given event was handled in some way, itsdoit
field should be set to false so as to prevent further processing of that event.- Parameters:
event
- The SWT event that was generated as a result of the mouse-wheel scrolling
-