gumbo.visualize.data.impl.swing
Class SwingTreeView.SwingPickEngine

java.lang.Object
  |
  +--gumbo.graphic.probe.AbstractPickEngine
        |
        +--gumbo.visualize.data.impl.swing.SwingTreeView.SwingPickEngine

All Implemented Interfaces:

Graphic, PickEngine

Enclosing class:

SwingTreeView

public static class SwingTreeView.SwingPickEngine

extends AbstractPickEngine

Pick engine needed to pick nodes in this view.

Nested Class Summary

Nested classes inherited from class gumbo.graphic.probe.AbstractPickEngine

AbstractPickEngine.DistanceComparator, AbstractPickEngine.GroupComparator

Constructor Summary

SwingTreeView.SwingPickEngine()

Method Summary

protected java.util.List

doRawPick(java.util.Set specs, java.lang.Object picker, java.lang.Object pickable, java.util.List retVal) Called by the system to perform a pick operation between each combination of picker and pickable.

Methods inherited from class gumbo.graphic.probe.AbstractPickEngine

checkPickSpecs, doGraphicPick, getGraphic

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SwingTreeView.SwingPickEngine

public SwingTreeView.SwingPickEngine()

Method Detail

doRawPick

protected java.util.List doRawPick(java.util.Set specs,
                                   java.lang.Object picker,
                                   java.lang.Object pickable,
                                   java.util.List retVal)

Description copied from class: AbstractPickEngine

Called by the system to perform a pick operation between each combination of picker and pickable. Default implementation: Performs intersection testing using IntersectableGraphic for the intersectable and GraphicGeometry for the intersector. First tries the picker, then the pickable, as the intersector. Returns none or one hit result. The hit result will have no distance (hence cannot support PICK_ORDERED) or other information, regardless of the pick specs.

Overrides:

doRawPick in class AbstractPickEngine

Parameters:

specs - The pick specs. Never null.

picker - The picker. Never null.

pickable - The pickable. Never null.

retVal - Return value object. Hit results (HitResult), ordered if required. Never null.

Returns:

Reference to retVal. Null if the pick operation is benignly invalid (picking is inactive) or should be ignored (consumed by the native graphic system).