Java tutorial
/* * Copyright (c) 2010, 2016, 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 com.sun.javafx.geom.Path2D; import com.sun.javafx.scene.shape.VLineToHelper; import com.sun.javafx.sg.prism.NGPath; import javafx.beans.property.DoubleProperty; import javafx.beans.property.DoublePropertyBase; /** * Creates a vertical line path element from the current point to y. * * <p>For more information on path elements see the {@link Path} and * {@link PathElement} classes. * * <p>Example: <PRE> import javafx.scene.shape.*; Path path = new Path(); path.getElements().add(new MoveTo(50.0f, 0.0f)); path.getElements().add(new VLineTo(50.0f)); </PRE> * @since JavaFX 2.0 */ public class VLineTo extends PathElement { static { VLineToHelper.setVLineToAccessor(new VLineToHelper.VLineToAccessor() { @Override public void doAddTo(PathElement pathElement, Path2D path) { ((VLineTo) pathElement).doAddTo(path); } }); } /** * Creates an empty instance of VLineTo. */ public VLineTo() { VLineToHelper.initHelper(this); } /** * Creates an instance of VLineTo. * @param y the vertical coordinate to line to */ public VLineTo(double y) { setY(y); VLineToHelper.initHelper(this); } /** * Defines the Y coordinate. * * @defaultValue 0.0 */ private DoubleProperty y = new DoublePropertyBase() { @Override public void invalidated() { u(); } @Override public Object getBean() { return VLineTo.this; } @Override public String getName() { return "y"; } }; public final void setY(double value) { y.set(value); } public final double getY() { return y.get(); } public final DoubleProperty yProperty() { return y; } @Override void addTo(NGPath pgPath) { if (isAbsolute()) { pgPath.addLineTo(pgPath.getCurrentX(), (float) getY()); } else { pgPath.addLineTo(pgPath.getCurrentX(), (float) (pgPath.getCurrentY() + getY())); } } /* * Note: This method MUST only be called via its accessor method. */ private void doAddTo(Path2D path) { if (isAbsolute()) { path.lineTo(path.getCurrentX(), (float) getY()); } else { path.lineTo(path.getCurrentX(), (float) (path.getCurrentY() + getY())); } } /** * Returns a string representation of this {@code VLineTo} object. * @return a string representation of this {@code VLineTo} object. */ @Override public String toString() { final StringBuilder sb = new StringBuilder("VLineTo["); sb.append("y=").append(getY()); return sb.append("]").toString(); } }