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jfreechart example source code file (CategoryAxis3D.java)

This example jfreechart source code file (CategoryAxis3D.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

awt, axisstate, axisstate, categoryaxis3d, categoryitemrenderer, categoryplot, categoryplot, clonenotsupportedexception, effect3d, effect3d, geometry, io, plotrenderinginfo, rectangle2d, rectangle2d, rectangleedge, serializable

The jfreechart CategoryAxis3D.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------
 * CategoryAxis3D.java
 * -------------------
 * (C) Copyright 2003-2009, by Klaus Rheinwald and Contributors.
 *
 * Original Author:  Klaus Rheinwald;
 * Contributor(s):   Tin Luu,
 *                   David Gilbert (for Object Refinery Limited);
 *                   Adriaan Joubert;
 *
 * Changes
 * -------
 * 19-Feb-2003 : File creation;
 * 21-Mar-2003 : Added to JFreeChart CVS, see bug id 685501 for code
 *               contribution from KR (DG);
 * 26-Mar-2003 : Implemented Serializable (DG);
 * 13-May-2003 : Renamed HorizontalCategoryAxis3D --> CategoryAxis3D, and
 *               modified to take into account the plot orientation (DG);
 * 14-Aug-2003 : Implemented Cloneable (DG);
 * 21-Aug-2003 : Fixed draw() method bugs (DG);
 * 22-Mar-2004 : Added workaround for bug 920959 (null pointer exception with
 *               no renderer) (DG);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 18-Aug-2006 : Fix for bug drawing category labels, thanks to Adriaan
 *               Joubert (1277726) (DG);
 * 16-Apr-2009 : Draw axis line and tick marks (DG);
 *
 */

package org.jfree.chart.axis;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.io.Serializable;

import org.jfree.chart.Effect3D;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.ui.RectangleEdge;

/**
 * An axis that displays categories and has a 3D effect.
 * Used for bar charts and line charts.
 */
public class CategoryAxis3D extends CategoryAxis
        implements Cloneable, Serializable {

    /** For serialization. */
    private static final long serialVersionUID = 4114732251353700972L;

    /**
     * Creates a new axis.
     */
    public CategoryAxis3D() {
        this(null);
    }

    /**
     * Creates a new axis using default attribute values.
     *
     * @param label  the axis label (<code>null permitted).
     */
    public CategoryAxis3D(String label) {
        super(label);
    }

    /**
     * Draws the axis on a Java 2D graphics device (such as the screen or a
     * printer).
     *
     * @param g2  the graphics device (<code>null not permitted).
     * @param cursor  the cursor location.
     * @param plotArea  the area within which the axis should be drawn
     *                  (<code>null not permitted).
     * @param dataArea  the area within which the plot is being drawn
     *                  (<code>null not permitted).
     * @param edge  the location of the axis (<code>null not permitted).
     * @param plotState  collects information about the plot (<code>null
     *                   permitted).
     *
     * @return The axis state (never <code>null).
     */
    public AxisState draw(Graphics2D g2,
                          double cursor,
                          Rectangle2D plotArea,
                          Rectangle2D dataArea,
                          RectangleEdge edge,
                          PlotRenderingInfo plotState) {

        // if the axis is not visible, don't draw it...
        if (!isVisible()) {
            return new AxisState(cursor);
        }

        // calculate the adjusted data area taking into account the 3D effect...
        // this assumes that there is a 3D renderer, all this 3D effect is a
        // bit of an ugly hack...
        CategoryPlot plot = (CategoryPlot) getPlot();

        Rectangle2D adjustedDataArea = new Rectangle2D.Double();
        if (plot.getRenderer() instanceof Effect3D) {
            Effect3D e3D = (Effect3D) plot.getRenderer();
            double adjustedX = dataArea.getMinX();
            double adjustedY = dataArea.getMinY();
            double adjustedW = dataArea.getWidth() - e3D.getXOffset();
            double adjustedH = dataArea.getHeight() - e3D.getYOffset();

            if (edge == RectangleEdge.LEFT || edge == RectangleEdge.BOTTOM) {
                adjustedY += e3D.getYOffset();
            }
            else if (edge == RectangleEdge.RIGHT || edge == RectangleEdge.TOP) {
                adjustedX += e3D.getXOffset();
            }
            adjustedDataArea.setRect(adjustedX, adjustedY, adjustedW,
                    adjustedH);
        }
        else {
            adjustedDataArea.setRect(dataArea);
        }

        if (isAxisLineVisible()) {
            drawAxisLine(g2, cursor, adjustedDataArea, edge);
        }
        // draw the category labels and axis label
        AxisState state = new AxisState(cursor);
        if (isTickMarksVisible()) {
            drawTickMarks(g2, cursor, adjustedDataArea, edge, state);
        }
        state = drawCategoryLabels(g2, plotArea, adjustedDataArea, edge,
                state, plotState);
        state = drawLabel(getLabel(), g2, plotArea, dataArea, edge, state);

        return state;

    }

    /**
     * Returns the Java 2D coordinate for a category.
     *
     * @param anchor  the anchor point.
     * @param category  the category index.
     * @param categoryCount  the category count.
     * @param area  the data area.
     * @param edge  the location of the axis.
     *
     * @return The coordinate.
     */
    public double getCategoryJava2DCoordinate(CategoryAnchor anchor,
                                              int category,
                                              int categoryCount,
                                              Rectangle2D area,
                                              RectangleEdge edge) {

        double result = 0.0;
        Rectangle2D adjustedArea = area;
        CategoryPlot plot = (CategoryPlot) getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        if (renderer instanceof Effect3D) {
            Effect3D e3D = (Effect3D) renderer;
            double adjustedX = area.getMinX();
            double adjustedY = area.getMinY();
            double adjustedW = area.getWidth() - e3D.getXOffset();
            double adjustedH = area.getHeight() - e3D.getYOffset();

            if (edge == RectangleEdge.LEFT || edge == RectangleEdge.BOTTOM) {
                adjustedY += e3D.getYOffset();
            }
            else if (edge == RectangleEdge.RIGHT || edge == RectangleEdge.TOP) {
                adjustedX += e3D.getXOffset();
            }
            adjustedArea = new Rectangle2D.Double(adjustedX, adjustedY,
                    adjustedW, adjustedH);
        }

        if (anchor == CategoryAnchor.START) {
            result = getCategoryStart(category, categoryCount, adjustedArea,
                    edge);
        }
        else if (anchor == CategoryAnchor.MIDDLE) {
            result = getCategoryMiddle(category, categoryCount, adjustedArea,
                    edge);
        }
        else if (anchor == CategoryAnchor.END) {
            result = getCategoryEnd(category, categoryCount, adjustedArea,
                    edge);
        }
        return result;

    }

    /**
     * Returns a clone of the axis.
     *
     * @return A clone.
     *
     * @throws CloneNotSupportedException If the axis is not cloneable for
     *         some reason.
     */
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }

}

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