/*
* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
package com.sun.javafx.util;
import com.sun.javafx.geom.
BaseBounds;
import com.sun.javafx.geom.
RectBounds;
import com.sun.javafx.geom.transform.
Affine3D;
import com.sun.javafx.geom.transform.
BaseTransform;
import com.sun.javafx.geom.transform.
GeneralTransform3D;
/**************************************************************************
* *
* Temporary state, used to reduce the occurrence of temporary garbage *
* while computing things such as bounds and transforms, and while *
* picking. Since these operations happen extremely often and must be *
* very fast, we need to reduce the load on the garbage collector. *
* *
*************************************************************************/
public final class
TempState {
/**
* A temporary rect used for computing bounds by the various bounds
* variables. This bounds starts life as a RectBounds, but may be promoted
* to a BoxBounds if there is a 3D transform mixed into its computation.
*/
public
BaseBounds bounds = new
RectBounds(0, 0, -1, -1);
/**
* A temporary affine transform used when picking to avoid creating
* temporary garbage.
*/
public final
BaseTransform pickTx = new
Affine3D();
/**
* A temporary affine transform used by the path transition to avoid
* creating temporary garbage.
*/
public final
Affine3D leafTx = new
Affine3D();
/**
* A temporary point used for picking and other purposes.
*/
public final com.sun.javafx.geom.
Point2D point =
new com.sun.javafx.geom.
Point2D(0, 0);
public final com.sun.javafx.geom.
Vec3d vec3d =
new com.sun.javafx.geom.
Vec3d(0, 0, 0);
/**
* A temporary general transform used by LOD helper method, in node,
* to compute area in scene.
*/
public final
GeneralTransform3D projViewTx = new
GeneralTransform3D();
/**
* A temporary affine transform used by the LOD helper method to get an
* affine transform.
*/
public final
Affine3D tempTx = new
Affine3D();
private static final
ThreadLocal<
TempState>
tempStateRef =
new
ThreadLocal<
TempState>() {
@
Override
protected
TempState initialValue() {
return new
TempState();
}
};
private
TempState() {
}
public static
TempState getInstance() {
return
tempStateRef.
get();
}
}