com.sun.javafx.scene.shape.MeshHelper Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.javafx.scene.shape;
import com.sun.javafx.geom.PickRay;
import com.sun.javafx.scene.input.PickResultChooser;
import com.sun.javafx.util.Utils;
import javafx.scene.Node;
import javafx.scene.shape.CullFace;
import javafx.scene.shape.Mesh;
/**
* Used to access internal methods of Mesh.
*/
public abstract class MeshHelper {
private static MeshAccessor meshAccessor;
static {
Utils.forceInit(Mesh.class);
}
protected MeshHelper() {
}
private static MeshHelper getHelper(Mesh mesh) {
return meshAccessor.getHelper(mesh);
}
protected static void setHelper(Mesh mesh, MeshHelper meshHelper) {
meshAccessor.setHelper(mesh, meshHelper);
}
/*
* Static helper methods for cases where the implementation is done in an
* instance method that is overridden by subclasses.
* These methods exist in the base class only.
*/
/*
* Picking implementation.
* @param pickRay The pick ray
* @param pickResult The pick result to be updated (if a closer intersection is found)
* @param candidate The Node that owns this mesh to be filled in the pick
* result in case a closer intersection is found
* @param cullFace The cull face of the node that owns this mesh
* @param reportFace Whether to report the hit face
* @return true if the pickRay intersects this mesh (regardless of whether
* the pickResult has been updated)
*/
public static boolean computeIntersects(Mesh mesh,
PickRay pickRay, PickResultChooser pickResult, Node candidate,
CullFace cullFace, boolean reportFace) {
return getHelper(mesh).computeIntersectsImpl(mesh,
pickRay, pickResult, candidate, cullFace, reportFace);
}
/*
* Methods that will be overridden by subclasses
*/
protected abstract boolean computeIntersectsImpl(Mesh mesh,
PickRay pickRay, PickResultChooser pickResult, Node candidate,
CullFace cullFace, boolean reportFace);
/*
* Methods used by Mesh (base) class only
*/
public static void setMeshAccessor(final MeshAccessor newAccessor) {
if (meshAccessor != null) {
throw new IllegalStateException();
}
meshAccessor = newAccessor;
}
public interface MeshAccessor {
MeshHelper getHelper(Mesh mesh);
void setHelper(Mesh mesh, MeshHelper meshHelper);
}
}