📄 barrenderer3d.java
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/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, 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.]
*
* ------------------
* BarRenderer3D.java
* ------------------
* (C) Copyright 2001-2007, by Serge V. Grachov and Contributors.
*
* Original Author: Serge V. Grachov;
* Contributor(s): David Gilbert (for Object Refinery Limited);
* Tin Luu;
* Milo Simpson;
* Richard Atkinson;
* Rich Unger;
* Christian W. Zuckschwerdt;
*
* Changes
* -------
* 31-Oct-2001 : First version, contributed by Serge V. Grachov (DG);
* 15-Nov-2001 : Modified to allow for null data values (DG);
* 13-Dec-2001 : Added tooltips (DG);
* 16-Jan-2002 : Added fix for single category or single series datasets,
* pointed out by Taoufik Romdhane (DG);
* 24-May-2002 : Incorporated tooltips into chart entities (DG);
* 11-Jun-2002 : Added check for (permitted) null info object, bug and fix
* reported by David Basten. Also updated Javadocs. (DG);
* 19-Jun-2002 : Added code to draw labels on bars (TL);
* 26-Jun-2002 : Added bar clipping to avoid PRExceptions (DG);
* 05-Aug-2002 : Small modification to drawCategoryItem method to support URLs
* for HTML image maps (RA);
* 06-Aug-2002 : Value labels now use number formatter, thanks to Milo
* Simpson (DG);
* 08-Aug-2002 : Applied fixed in bug id 592218 (DG);
* 20-Sep-2002 : Added fix for categoryPaint by Rich Unger, and fixed errors
* reported by Checkstyle (DG);
* 24-Oct-2002 : Amendments for changes in CategoryDataset interface and
* CategoryToolTipGenerator interface (DG);
* 05-Nov-2002 : Replaced references to CategoryDataset with TableDataset (DG);
* 06-Nov-2002 : Moved to the com.jrefinery.chart.renderer package (DG);
* 28-Jan-2003 : Added an attribute to control the shading of the left and
* bottom walls in the plot background (DG);
* 25-Mar-2003 : Implemented Serializable (DG);
* 10-Apr-2003 : Removed category paint usage (DG);
* 13-May-2003 : Renamed VerticalBarRenderer3D --> BarRenderer3D and merged with
* HorizontalBarRenderer3D (DG);
* 30-Jul-2003 : Modified entity constructor (CZ);
* 19-Aug-2003 : Implemented Cloneable and PublicCloneable (DG);
* 07-Oct-2003 : Added renderer state (DG);
* 08-Oct-2003 : Removed clipping (replaced with flag in CategoryPlot to
* control order in which the data items are processed) (DG);
* 20-Oct-2003 : Fixed bug (outline stroke not being used for bar
* outlines) (DG);
* 21-Oct-2003 : Bar width moved into CategoryItemRendererState (DG);
* 24-Nov-2003 : Fixed bug 846324 (item labels not showing) (DG);
* 27-Nov-2003 : Added code to respect maxBarWidth setting (DG);
* 02-Feb-2004 : Fixed bug where 'drawBarOutline' flag is not respected (DG);
* 10-Feb-2004 : Small change to drawItem() method to make cut-and-paste
* overriding easier (DG);
* 04-Oct-2004 : Fixed bug with item label positioning when plot alignment is
* horizontal (DG);
* 05-Nov-2004 : Modified drawItem() signature (DG);
* 20-Apr-2005 : Renamed CategoryLabelGenerator
* --> CategoryItemLabelGenerator (DG);
* 25-Apr-2005 : Override initialise() method to fix bug 1189642 (DG);
* 09-Jun-2005 : Use addEntityItem from super class (DG);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 07-Dec-2006 : Implemented equals() override (DG);
* 17-Jan-2007 : Fixed bug in drawDomainGridline() method (DG);
* 03-Apr-2007 : Fixed bugs in drawBackground() method (DG);
* 16-Oct-2007 : Fixed bug in range marker drawing (DG);
*
*/
package org.jfree.chart.renderer.category;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Stroke;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.jfree.chart.Effect3D;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.entity.EntityCollection;
import org.jfree.chart.event.RendererChangeEvent;
import org.jfree.chart.labels.CategoryItemLabelGenerator;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.Marker;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.plot.ValueMarker;
import org.jfree.data.Range;
import org.jfree.data.category.CategoryDataset;
import org.jfree.io.SerialUtilities;
import org.jfree.text.TextUtilities;
import org.jfree.ui.LengthAdjustmentType;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.TextAnchor;
import org.jfree.util.PaintUtilities;
import org.jfree.util.PublicCloneable;
/**
* A renderer for bars with a 3D effect, for use with the
* {@link org.jfree.chart.plot.CategoryPlot} class.
*/
public class BarRenderer3D extends BarRenderer
implements Effect3D, Cloneable, PublicCloneable,
Serializable {
/** For serialization. */
private static final long serialVersionUID = 7686976503536003636L;
/** The default x-offset for the 3D effect. */
public static final double DEFAULT_X_OFFSET = 12.0;
/** The default y-offset for the 3D effect. */
public static final double DEFAULT_Y_OFFSET = 8.0;
/** The default wall paint. */
public static final Paint DEFAULT_WALL_PAINT = new Color(0xDD, 0xDD, 0xDD);
/** The size of x-offset for the 3D effect. */
private double xOffset;
/** The size of y-offset for the 3D effect. */
private double yOffset;
/** The paint used to shade the left and lower 3D wall. */
private transient Paint wallPaint;
/**
* Default constructor, creates a renderer with a default '3D effect'.
*/
public BarRenderer3D() {
this(DEFAULT_X_OFFSET, DEFAULT_Y_OFFSET);
}
/**
* Constructs a new renderer with the specified '3D effect'.
*
* @param xOffset the x-offset for the 3D effect.
* @param yOffset the y-offset for the 3D effect.
*/
public BarRenderer3D(double xOffset, double yOffset) {
super();
this.xOffset = xOffset;
this.yOffset = yOffset;
this.wallPaint = DEFAULT_WALL_PAINT;
// set the default item label positions
ItemLabelPosition p1 = new ItemLabelPosition(ItemLabelAnchor.INSIDE12,
TextAnchor.TOP_CENTER);
setBasePositiveItemLabelPosition(p1);
ItemLabelPosition p2 = new ItemLabelPosition(ItemLabelAnchor.INSIDE12,
TextAnchor.TOP_CENTER);
setBaseNegativeItemLabelPosition(p2);
}
/**
* Returns the x-offset for the 3D effect.
*
* @return The 3D effect.
*
* @see #getYOffset()
*/
public double getXOffset() {
return this.xOffset;
}
/**
* Returns the y-offset for the 3D effect.
*
* @return The 3D effect.
*/
public double getYOffset() {
return this.yOffset;
}
/**
* Returns the paint used to highlight the left and bottom wall in the plot
* background.
*
* @return The paint.
*
* @see #setWallPaint(Paint)
*/
public Paint getWallPaint() {
return this.wallPaint;
}
/**
* Sets the paint used to hightlight the left and bottom walls in the plot
* background, and sends a {@link RendererChangeEvent} to all registered
* listeners.
*
* @param paint the paint (<code>null</code> not permitted).
*
* @see #getWallPaint()
*/
public void setWallPaint(Paint paint) {
if (paint == null) {
throw new IllegalArgumentException("Null 'paint' argument.");
}
this.wallPaint = paint;
notifyListeners(new RendererChangeEvent(this));
}
/**
* Initialises the renderer and returns a state object that will be passed
* to subsequent calls to the drawItem method. This method gets called
* once at the start of the process of drawing a chart.
*
* @param g2 the graphics device.
* @param dataArea the area in which the data is to be plotted.
* @param plot the plot.
* @param rendererIndex the renderer index.
* @param info collects chart rendering information for return to caller.
*
* @return The renderer state.
*/
public CategoryItemRendererState initialise(Graphics2D g2,
Rectangle2D dataArea,
CategoryPlot plot,
int rendererIndex,
PlotRenderingInfo info) {
Rectangle2D adjusted = new Rectangle2D.Double(dataArea.getX(),
dataArea.getY() + getYOffset(), dataArea.getWidth()
- getXOffset(), dataArea.getHeight() - getYOffset());
CategoryItemRendererState state = super.initialise(g2, adjusted, plot,
rendererIndex, info);
return state;
}
/**
* Draws the background for the plot.
*
* @param g2 the graphics device.
* @param plot the plot.
* @param dataArea the area inside the axes.
*/
public void drawBackground(Graphics2D g2, CategoryPlot plot,
Rectangle2D dataArea) {
float x0 = (float) dataArea.getX();
float x1 = x0 + (float) Math.abs(this.xOffset);
float x3 = (float) dataArea.getMaxX();
float x2 = x3 - (float) Math.abs(this.xOffset);
float y0 = (float) dataArea.getMaxY();
float y1 = y0 - (float) Math.abs(this.yOffset);
float y3 = (float) dataArea.getMinY();
float y2 = y3 + (float) Math.abs(this.yOffset);
GeneralPath clip = new GeneralPath();
clip.moveTo(x0, y0);
clip.lineTo(x0, y2);
clip.lineTo(x1, y3);
clip.lineTo(x3, y3);
clip.lineTo(x3, y1);
clip.lineTo(x2, y0);
clip.closePath();
Composite originalComposite = g2.getComposite();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
plot.getBackgroundAlpha()));
// fill background...
Paint backgroundPaint = plot.getBackgroundPaint();
if (backgroundPaint != null) {
g2.setPaint(backgroundPaint);
g2.fill(clip);
}
GeneralPath leftWall = new GeneralPath();
leftWall.moveTo(x0, y0);
leftWall.lineTo(x0, y2);
leftWall.lineTo(x1, y3);
leftWall.lineTo(x1, y1);
leftWall.closePath();
g2.setPaint(getWallPaint());
g2.fill(leftWall);
GeneralPath bottomWall = new GeneralPath();
bottomWall.moveTo(x0, y0);
bottomWall.lineTo(x1, y1);
bottomWall.lineTo(x3, y1);
bottomWall.lineTo(x2, y0);
bottomWall.closePath();
g2.setPaint(getWallPaint());
g2.fill(bottomWall);
// highlight the background corners...
g2.setPaint(Color.lightGray);
Line2D corner = new Line2D.Double(x0, y0, x1, y1);
g2.draw(corner);
corner.setLine(x1, y1, x1, y3);
g2.draw(corner);
corner.setLine(x1, y1, x3, y1);
g2.draw(corner);
// draw background image, if there is one...
Image backgroundImage = plot.getBackgroundImage();
if (backgroundImage != null) {
Rectangle2D adjusted = new Rectangle2D.Double(dataArea.getX()
+ getXOffset(), dataArea.getY(),
dataArea.getWidth() - getXOffset(),
dataArea.getHeight() - getYOffset());
plot.drawBackgroundImage(g2, adjusted);
}
g2.setComposite(originalComposite);
}
/**
* Draws the outline for the plot.
*
* @param g2 the graphics device.
* @param plot the plot.
* @param dataArea the area inside the axes.
*/
public void drawOutline(Graphics2D g2, CategoryPlot plot,
Rectangle2D dataArea) {
float x0 = (float) dataArea.getX();
float x1 = x0 + (float) Math.abs(this.xOffset);
float x3 = (float) dataArea.getMaxX();
float x2 = x3 - (float) Math.abs(this.xOffset);
float y0 = (float) dataArea.getMaxY();
float y1 = y0 - (float) Math.abs(this.yOffset);
float y3 = (float) dataArea.getMinY();
float y2 = y3 + (float) Math.abs(this.yOffset);
GeneralPath clip = new GeneralPath();
clip.moveTo(x0, y0);
clip.lineTo(x0, y2);
clip.lineTo(x1, y3);
clip.lineTo(x3, y3);
clip.lineTo(x3, y1);
clip.lineTo(x2, y0);
clip.closePath();
// put an outline around the data area...
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