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This is a backport of OpenJFX 8 to run on Java 7.
The newest version!
/*
* Copyright (c) 2010, 2013, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javafx.scene.shape;
import java.util.Iterator;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.BooleanPropertyBase;
import javafx.scene.Node;
import com.sun.javafx.WeakReferenceQueue;
import com.sun.javafx.geom.Path2D;
import com.sun.javafx.sg.PGPath;
/**
* The {@code PathElement} class represents an abstract element
* of the {@link Path} that can represent any geometric objects
* like straight lines, arcs, quadratic curves, cubic curves, etc.
* @since JavaFX 2.0
*/
public abstract class PathElement {
/**
* Defines the sequence of {@code Path} objects this path element
* is attached to.
*/
WeakReferenceQueue impl_nodes = new WeakReferenceQueue();
void addNode(final Node n) {
impl_nodes.add(n);
}
void removeNode(final Node n) {
impl_nodes.remove(n);
}
void u() {
final Iterator iterator = impl_nodes.iterator();
while (iterator.hasNext()) {
((Path) iterator.next()).markPathDirty();
}
}
abstract void addTo(PGPath pgPath);
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public abstract void impl_addTo(Path2D path);
/**
* A flag that indicates whether the path coordinates are absolute or
* relative. A value of true indicates that the coordinates are absolute
* values. A value of false indicates that the values in this PathElement
* are added to the coordinates of the previous PathElement to compute the
* actual coordinates.
*
* @defaultValue true
*/
private BooleanProperty absolute;
public final void setAbsolute(boolean value) {
absoluteProperty().set(value);
}
public final boolean isAbsolute() {
return absolute == null || absolute.get();
}
public final BooleanProperty absoluteProperty() {
if (absolute == null) {
absolute = new BooleanPropertyBase() {
@Override protected void invalidated() {
u();
}
@Override
public Object getBean() {
return PathElement.this;
}
@Override
public String getName() {
return "absolute";
}
};
}
return absolute;
}
}