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/*
* Copyright (c) 2013, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* 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.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package javafx.scene.input;
import javafx.beans.NamedArg;
import javafx.event.EventTarget;
import javafx.geometry.Point2D;
import javafx.geometry.Point3D;
import javafx.scene.Node;
/**
* A container object that contains the result of a pick event
* @since JavaFX 8.0
*/
public class PickResult {
/**
* An undefined face. This value is used for the intersected face
* if the picked node has no user-specified faces.
*/
public static final int FACE_UNDEFINED = -1;
private Node node;
private Point3D point;
private double distance = Double.POSITIVE_INFINITY;
private int face = -1;
private Point3D normal;
private Point2D texCoord;
/**
* Creates a new instance of PickResult.
* @param node The intersected node
* @param point The intersected point in local coordinate of the picked Node
* @param distance The intersected distance between camera position and the picked Node
* @param face The intersected face of the picked Node
* @param texCoord The intersected texture coordinates of the picked Node
*/
public PickResult(@NamedArg("node") Node node, @NamedArg("point") Point3D point, @NamedArg("distance") double distance, @NamedArg("face") int face, @NamedArg("texCoord") Point2D texCoord) {
this.node = node;
this.point = point;
this.distance = distance;
this.face = face;
this.normal = null;
this.texCoord = texCoord;
}
/**
* Creates a new instance of PickResult.
*
* @param node The intersected node
* @param point The intersected point in local coordinate of the picked Node
* @param distance The intersected distance between camera position and the picked Node
* @param face The intersected face of the picked Node
* @param texCoord The intersected texture coordinates of the picked Node
* @param normal The intersected normal of the picked Node
*
* @since JavaFX 8u40
*/
public PickResult(@NamedArg("node") Node node, @NamedArg("point") Point3D point,
@NamedArg("distance") double distance, @NamedArg("face") int face,
@NamedArg("normal") Point3D normal, @NamedArg("texCoord") Point2D texCoord) {
this.node = node;
this.point = point;
this.distance = distance;
this.face = face;
this.normal = normal;
this.texCoord = texCoord;
}
/**
* Creates a new instance of PickResult for a non-3d-shape target.
* Sets face to FACE_UNDEFINED and texCoord to null.
* @param node The intersected node
* @param point The intersected point in local coordinate of the picked Node
* @param distance The intersected distance between camera position and the picked Node
*/
public PickResult(@NamedArg("node") Node node, @NamedArg("point") Point3D point, @NamedArg("distance") double distance) {
this.node = node;
this.point = point;
this.distance = distance;
this.face = FACE_UNDEFINED;
this.normal = null;
this.texCoord = null;
}
/**
* Creates a pick result for a 2D case where no additional information is needed.
* Converts the given scene coordinates to the target's local coordinate space
* and stores the value as the intersected point. Sets intersected node
* to the given target, distance to 1.0,
* face to FACE_UNDEFINED and texCoord to null.
* @param target The picked target (null in case of a Scene)
* @param sceneX The scene X coordinate
* @param sceneY The scene Y coordinate
*/
public PickResult(@NamedArg("target") EventTarget target, @NamedArg("sceneX") double sceneX, @NamedArg("sceneY") double sceneY) {
this(target instanceof Node ? (Node) target : null,
target instanceof Node ? ((Node) target).sceneToLocal(sceneX, sceneY, 0) : new Point3D(sceneX, sceneY, 0),
1.0);
}
/**
* Returns the intersected node.
* Returns null if there was no intersection with any node and the scene
* was picked.
*
* @return the picked node or null if no node was picked
*/
public final Node getIntersectedNode() {
return node;
}
/**
* Returns the intersected point in local coordinate of the picked Node.
* If no node was picked, it returns the intersected point with the
* projection plane.
*
* @return new Point3D presenting the intersected point
*/
public final Point3D getIntersectedPoint() {
return point;
}
/**
* Returns the intersected distance between camera position
* and the intersected point.
*
* @return the distance from camera to the intersection
*/
public final double getIntersectedDistance() {
return distance;
}
/**
* Returns the intersected face of the picked Node, FACE_UNDEFINED
* if the node doesn't have user-specified faces
* or was picked on bounds.
*
* @return the picked face
*/
public final int getIntersectedFace() {
return face;
}
/**
* Return the intersected normal of the picked 3d shape. If the picked
* target is not Shape3D or has pickOnBounds==true, it returns null.
*
* @return a new Point3D presenting the intersected normal
*
* @since JavaFX 8u40
*/
public final Point3D getIntersectedNormal() {
return normal;
}
/**
* Return the intersected texture coordinates of the picked 3d shape.
* If the picked target is not Shape3D or has pickOnBounds==true,
* it returns null.
*
* @return a new Point2D presenting the intersected TexCoord
*/
public final Point2D getIntersectedTexCoord() {
return texCoord;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("PickResult [");
sb.append("node = ").append(getIntersectedNode())
.append(", point = ").append(getIntersectedPoint())
.append(", distance = ").append(getIntersectedDistance());
if (getIntersectedFace() != FACE_UNDEFINED) {
sb.append(", face = ").append(getIntersectedFace());
}
if (getIntersectedNormal() != null) {
sb.append(", normal = ").append(getIntersectedNormal());
}
if (getIntersectedTexCoord() != null) {
sb.append(", texCoord = ").append(getIntersectedTexCoord());
}
sb.append("]");
return sb.toString();
}
}
