    001    /* ===========================================================
    002     * JFreeChart : a free chart library for the Java(tm) platform
    003     * ===========================================================
    004     *
    005     * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
    006     *
    007     * Project Info:  http://www.jfree.org/jfreechart/index.html
    008     *
    009     * This library is free software; you can redistribute it and/or modify it
    010     * under the terms of the GNU Lesser General Public License as published by
    011     * the Free Software Foundation; either version 2.1 of the License, or
    012     * (at your option) any later version.
    013     *
    014     * This library is distributed in the hope that it will be useful, but
    015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
    017     * License for more details.
    018     *
    019     * You should have received a copy of the GNU Lesser General Public
    020     * License along with this library; if not, write to the Free Software
    021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
    022     * USA.
    023     *
    024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
    025     * in the United States and other countries.]
    026     *
    027     * -----------------
    028     * NumberAxis3D.java
    029     * -----------------
    030     * (C) Copyright 2001-2007, by Serge V. Grachov and Contributors.
    031     *
    032     * Original Author:  Serge V. Grachov;
    033     * Contributor(s):   David Gilbert (for Object Refinery Limited);
    034     *                   Jonathan Nash;
    035     *                   Richard Atkinson;
    036     *                   Tin Luu;
    037     *
    038     * Changes
    039     * -------
    040     * 31-Oct-2001 : Version 1 contributed by Serge V. Grachov (DG);
    041     * 23-Nov-2001 : Overhauled auto tick unit code for all axes (DG);
    042     * 12-Dec-2001 : Minor change due to grid lines bug fix (DG);
    043     * 08-Jan-2002 : Added flag allowing the axis to be 'inverted'.  That is, run
    044     *               from positive to negative.  Added default values to
    045     *               constructors (DG);
    046     * 16-Jan-2002 : Added an optional crosshair, based on the implementation by
    047     *               Jonathan Nash (DG);
    048     * 25-Feb-2002 : Updated constructors for new autoRangeStickyZero flag (DG);
    049     * 19-Apr-2002 : drawVerticalString() is now drawRotatedString() in
    050     *               RefineryUtilities (DG);
    051     * 25-Jun-2002 : Removed redundant import (DG);
    052     * 25-Jul-2002 : Changed order of parameters in ValueAxis constructor (DG);
    053     * 06-Aug-2002 : Modified draw method to not draw axis label if label is empty
    054     *               String (RA);
    055     * 05-Sep-2002 : Updated constructor for changes in the Axis class, and changed
    056     *               draw method to observe tickMarkPaint (DG);
    057     * 22-Sep-2002 : Fixed errors reported by Checkstyle (DG);
    058     * 08-Nov-2002 : Moved to new package com.jrefinery.chart.axis (DG);
    059     * 20-Jan-2003 : Removed unnecessary constructors (DG);
    060     * 26-Mar-2003 : Implemented Serializable (DG);
    061     * 13-May-2003 : Merged HorizontalNumberAxis3D and VerticalNumberAxis3D (DG);
    062     * 21-Aug-2003 : Updated draw() method signature (DG);
    063     * 07-Nov-2003 : Modified refreshTicks method signature (DG);
    064     * ------------- JFREECHART 1.0.x ---------------------------------------------
    065     * 18-Jan-2006 : Fixed bug 1408904 (axis assumes CategoryPlot) (DG):
    066     *
    067     */
    068
    069    package org.jfree.chart.axis;
    070
    071    import java.awt.Graphics2D;
    072    import java.awt.geom.Rectangle2D;
    073    import java.io.Serializable;
    074    import java.util.List;
    075
    076    import org.jfree.chart.Effect3D;
    077    import org.jfree.chart.plot.CategoryPlot;
    078    import org.jfree.chart.plot.Plot;
    079    import org.jfree.chart.plot.PlotRenderingInfo;
    080    import org.jfree.chart.renderer.category.CategoryItemRenderer;
    081    import org.jfree.ui.RectangleEdge;
    082
    083    /**
    084     * A standard linear value axis with a 3D effect corresponding to the
    085     * offset specified by some renderers.
    086     */
    087    public class NumberAxis3D extends NumberAxis implements Serializable {
    088
    089        /** For serialization. */
    090        private static final long serialVersionUID = -1790205852569123512L;
    091
    092        /**
    093         * Default constructor.
    094         */
    095        public NumberAxis3D() {
    096            this(null);
    097        }
    098
    099        /**
    100         * Constructs a new axis.
    101         *
    102         * @param label  the axis label (<code>null</code> permitted).
    103         */
    104        public NumberAxis3D(String label) {
    105            super(label);
    106            setAxisLineVisible(false);
    107        }
    108
    109        /**
    110         * Draws the axis on a Java 2D graphics device (such as the screen or a
    111         * printer).
    112         *
    113         * @param g2  the graphics device.
    114         * @param cursor  the cursor.
    115         * @param plotArea  the area for drawing the axes and data.
    116         * @param dataArea  the area for drawing the data (a subset of the
    117         *                  plotArea).
    118         * @param edge  the axis location.
    119         * @param plotState  collects information about the plot (<code>null</code>
    120         *                   permitted).
    121         *
    122         * @return The updated cursor value.
    123         */
    124        public AxisState draw(Graphics2D g2, double cursor, Rectangle2D plotArea,
    125                Rectangle2D dataArea, RectangleEdge edge,
    126                PlotRenderingInfo plotState) {
    127
    128            // if the axis is not visible, don't draw it...
    129            if (!isVisible()) {
    130                AxisState state = new AxisState(cursor);
    131                // even though the axis is not visible, we need ticks for the
    132                // gridlines...
    133                List ticks = refreshTicks(g2, state, dataArea, edge);
    134                state.setTicks(ticks);
    135                return state;
    136            }
    137
    138            // calculate the adjusted data area taking into account the 3D effect...
    139            double xOffset = 0.0;
    140            double yOffset = 0.0;
    141            Plot plot = getPlot();
    142            if (plot instanceof CategoryPlot) {
    143                CategoryPlot cp = (CategoryPlot) plot;
    144                CategoryItemRenderer r = cp.getRenderer();
    145                if (r instanceof Effect3D) {
    146                    Effect3D e3D = (Effect3D) r;
    147                    xOffset = e3D.getXOffset();
    148                    yOffset = e3D.getYOffset();
    149                }
    150            }
    151
    152            double adjustedX = dataArea.getMinX();
    153            double adjustedY = dataArea.getMinY();
    154            double adjustedW = dataArea.getWidth() - xOffset;
    155            double adjustedH = dataArea.getHeight() - yOffset;
    156
    157            if (edge == RectangleEdge.LEFT || edge == RectangleEdge.BOTTOM) {
    158                adjustedY += yOffset;
    159            }
    160            else if (edge == RectangleEdge.RIGHT || edge == RectangleEdge.TOP) {
    161                adjustedX += xOffset;
    162            }
    163            Rectangle2D adjustedDataArea = new Rectangle2D.Double(adjustedX,
    164                    adjustedY, adjustedW, adjustedH);
    165
    166            // draw the tick marks and labels...
    167            AxisState info = drawTickMarksAndLabels(g2, cursor, plotArea,
    168                    adjustedDataArea, edge);
    169
    170            // draw the axis label...
    171            info = drawLabel(getLabel(), g2, plotArea, dataArea, edge, info);
    172
    173            return info;
    174
    175        }
    176
    177    }