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Viewing changes to flamingo/src/main/java/org/pushingpixels/flamingo/internal/utils/DoubleArrowResizableIcon.java

  • Committer: Package Import Robot
  • Author(s): Felix Natter
  • Date: 2016-01-18 20:58:45 UTC
  • Revision ID: package-import@ubuntu.com-20160118205845-crbmrkda61qsi5qa
Tags: upstream-7.3+dfsg2
Import upstream version 7.3+dfsg2

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flamingo/src/main/java/org/pushingpixels/flamingo/internal/utils/DoubleArrowResizableIcon.java
 
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/*
 
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 * Copyright (c) 2005-2010 Flamingo Kirill Grouchnikov. All Rights Reserved.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without 
 
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 * modification, are permitted provided that the following conditions are met:
 
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 * 
 
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 *  o Redistributions of source code must retain the above copyright notice, 
 
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 *    this list of conditions and the following disclaimer. 
 
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 *     
 
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 *  o Redistributions in binary form must reproduce the above copyright notice, 
 
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 *    this list of conditions and the following disclaimer in the documentation 
 
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 *    and/or other materials provided with the distribution. 
 
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 *     
 
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 *  o Neither the name of Flamingo Kirill Grouchnikov nor the names of 
 
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 *    its contributors may be used to endorse or promote products derived 
 
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 *    from this software without specific prior written permission. 
 
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 *     
 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 
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 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 
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 */
 
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package org.pushingpixels.flamingo.internal.utils;
 
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import java.awt.*;
 
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import java.awt.geom.GeneralPath;
 
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import javax.swing.SwingConstants;
 
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import javax.swing.SwingUtilities;
 
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import org.pushingpixels.flamingo.api.common.icon.ResizableIcon;
 
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/**
 
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 * Helper implementation of {@link ResizableIcon} that draws a double arrow.
 
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 * 
 
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 * @author Kirill Grouchnikov
 
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 */
 
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public class DoubleArrowResizableIcon implements ResizableIcon {
 
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        /**
 
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         * Initial dimension.
 
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         */
 
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        private Dimension initialDim;
 
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        /**
 
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         * The width of the rendered image.
 
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         */
 
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        protected int width;
 
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        /**
 
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         * The height of the rendered image.
 
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         */
 
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        protected int height;
 
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        /**
 
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         * Arrow direction. One of {@link SwingConstants#SOUTH},
 
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         * {@link SwingConstants#NORTH}, {@link SwingConstants#EAST} or
 
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         * {@link SwingConstants#WEST}.
 
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         */
 
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        protected int direction;
 
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        /**
 
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         * Creates a new double arrow resizable icon.
 
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         * 
 
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         * @param initialDim
 
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         *            Initial icon dimension.
 
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         * @param direction
 
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         *            Arrow direction. Currently only {@link SwingConstants#SOUTH}
 
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         *            is supported.
 
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         */
 
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        public DoubleArrowResizableIcon(Dimension initialDim, int direction) {
 
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                this.initialDim = initialDim;
 
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                this.width = initialDim.width;
 
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                this.height = initialDim.height;
 
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                this.direction = direction;
 
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        }
 
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        /**
 
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         * Creates a new double arrow resizable icon.
 
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         * 
 
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         * @param initialDim
 
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         *            Initial icon dimension.
 
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         * @param direction
 
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         *            Arrow direction. Currently only {@link SwingConstants#SOUTH}
 
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         *            is supported.
 
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         */
 
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        public DoubleArrowResizableIcon(int initialDim, int direction) {
 
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                this(new Dimension(initialDim, initialDim), direction);
 
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        }
 
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        public void revertToOriginalDimension() {
 
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                this.width = initialDim.width;
 
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                this.height = initialDim.height;
 
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        }
 
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        @Override
 
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    public void setDimension(Dimension newDimension) {
 
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                this.width = newDimension.width;
 
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                this.height = newDimension.height;
 
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        }
 
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        @Override
 
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    public int getIconHeight() {
 
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                return this.height;
 
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        }
 
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        @Override
 
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    public int getIconWidth() {
 
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                return this.width;
 
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        }
 
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        protected boolean toPaintEnabled(Component c) {
 
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                return c.isEnabled();
 
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        }
 
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        @Override
 
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    public void paintIcon(Component c, Graphics g, int x, int y) {
 
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                Graphics2D graphics = (Graphics2D) g.create();
 
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                graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
 
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                                RenderingHints.VALUE_ANTIALIAS_ON);
 
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                Color arrowColor = this.toPaintEnabled(c) ? Color.black : Color.gray;
 
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                graphics.setColor(arrowColor);
 
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                Stroke stroke = new BasicStroke(this.width / 8.0f,
 
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                                BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
 
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                graphics.setStroke(stroke);
 
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                graphics.translate(x, y);
 
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                GeneralPath gp = new GeneralPath();
 
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                int arrowHeight = height / 2;
 
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                int arrowWidth = width / 2;
 
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                int deltaH = (height + 2) / 3;
 
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                int deltaW = (width + 2) / 3;
 
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                switch (direction) {
 
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                case SwingUtilities.NORTH:
 
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                        gp.moveTo(0, height - 1);
 
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                        gp.lineTo((float) 0.5 * (width - 1), height - 1 - arrowHeight);
 
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                        gp.lineTo(width - 1, height - 1);
 
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                        gp.moveTo(0, height - 1 - deltaH);
 
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                        gp.lineTo((float) 0.5 * (width - 1), height - 1 - arrowHeight
 
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                                        - deltaH);
 
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                        gp.lineTo(width - 1, height - 1 - deltaH);
 
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                        break;
 
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                case SwingUtilities.SOUTH:
 
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                        gp.moveTo(0, 0);
 
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                        gp.lineTo((float) 0.5 * (width - 1), arrowHeight);
 
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                        gp.lineTo(width - 1, 0);
 
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                        gp.moveTo(0, deltaH);
 
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                        gp.lineTo((float) 0.5 * (width - 1), arrowHeight + deltaH);
 
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                        gp.lineTo(width - 1, deltaH);
 
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                        break;
 
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                case SwingUtilities.EAST:
 
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                        gp.moveTo(0, 0);
 
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                        gp.lineTo(arrowWidth, (float) 0.5 * (height - 1));
 
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                        gp.lineTo(0, height - 1);
 
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                        gp.moveTo(deltaW, 0);
 
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                        gp.lineTo(arrowWidth + deltaW, (float) 0.5 * (height - 1));
 
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                        gp.lineTo(deltaW, height - 1);
 
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                        break;
 
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                case SwingUtilities.WEST:
 
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                        gp.moveTo(width - 1, 0);
 
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                        gp.lineTo(width - 1 - arrowWidth, (float) 0.5 * (height - 1));
 
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                        gp.lineTo(width - 1, height - 1);
 
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                        gp.moveTo(width - 1 - deltaW, 0);
 
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                        gp.lineTo(width - 1 - arrowWidth - deltaW, (float) 0.5
 
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                                        * (height - 1));
 
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                        gp.lineTo(width - 1 - deltaW, height - 1);
 
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                        break;
 
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                }
 
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                graphics.draw(gp);
 
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                graphics.dispose();
 
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        }
 
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}