/* ===========================================================
* 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.]
*
* ---------------------------
* DefaultDrawingSupplier.java
* ---------------------------
* (C) Copyright 2003-2007, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Jeremy Bowman;
*
* Changes
* -------
* 16-Jan-2003 : Version 1 (DG);
* 17-Jan-2003 : Added stroke method, renamed DefaultPaintSupplier
* --> DefaultDrawingSupplier (DG)
* 27-Jan-2003 : Incorporated code from SeriesShapeFactory, originally
* contributed by Jeremy Bowman (DG);
* 25-Mar-2003 : Implemented Serializable (DG);
* 20-Aug-2003 : Implemented Cloneable and PublicCloneable (DG);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 13-Jun-2007 : Added fillPaintSequence (DG);
*
*/
package org.jfree.chart.plot;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Paint;
import java.awt.Polygon;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Arrays;
import org.jfree.chart.ChartColor;
import org.jfree.io.SerialUtilities;
import org.jfree.util.PublicCloneable;
import org.jfree.util.ShapeUtilities;
/**
* A default implementation of the {@link DrawingSupplier} interface. All
* {@link Plot} instances have a new instance of this class installed by
* default.
*/
public class DefaultDrawingSupplier implements DrawingSupplier, Cloneable,
PublicCloneable, Serializable {
/** For serialization. */
private static final long serialVersionUID = -7339847061039422538L;
/** The default fill paint sequence. */
public static final Paint[] DEFAULT_PAINT_SEQUENCE
= ChartColor.createDefaultPaintArray();
/** The default outline paint sequence. */
public static final Paint[] DEFAULT_OUTLINE_PAINT_SEQUENCE = new Paint[] {
Color.lightGray};
/** The default fill paint sequence. */
public static final Paint[] DEFAULT_FILL_PAINT_SEQUENCE = new Paint[] {
Color.white};
/** The default stroke sequence. */
public static final Stroke[] DEFAULT_STROKE_SEQUENCE = new Stroke[] {
new BasicStroke(1.0f, BasicStroke.CAP_SQUARE,
BasicStroke.JOIN_BEVEL)};
/** The default outline stroke sequence. */
public static final Stroke[] DEFAULT_OUTLINE_STROKE_SEQUENCE
= new Stroke[] {new BasicStroke(1.0f, BasicStroke.CAP_SQUARE,
BasicStroke.JOIN_BEVEL)};
/** The default shape sequence. */
public static final Shape[] DEFAULT_SHAPE_SEQUENCE
= createStandardSeriesShapes();
/** The paint sequence. */
private transient Paint[] paintSequence;
/** The current paint index. */
private int paintIndex;
/** The outline paint sequence. */
private transient Paint[] outlinePaintSequence;
/** The current outline paint index. */
private int outlinePaintIndex;
/** The fill paint sequence. */
private transient Paint[] fillPaintSequence;
/** The current fill paint index. */
private int fillPaintIndex;
/** The stroke sequence. */
private transient Stroke[] strokeSequence;
/** The current stroke index. */
private int strokeIndex;
/** The outline stroke sequence. */
private transient Stroke[] outlineStrokeSequence;
/** The current outline stroke index. */
private int outlineStrokeIndex;
/** The shape sequence. */
private transient Shape[] shapeSequence;
/** The current shape index. */
private int shapeIndex;
/**
* Creates a new supplier, with default sequences for fill paint, outline
* paint, stroke and shapes.
*/
public DefaultDrawingSupplier() {
this(DEFAULT_PAINT_SEQUENCE, DEFAULT_FILL_PAINT_SEQUENCE,
DEFAULT_OUTLINE_PAINT_SEQUENCE,
DEFAULT_STROKE_SEQUENCE,
DEFAULT_OUTLINE_STROKE_SEQUENCE,
DEFAULT_SHAPE_SEQUENCE);
}
/**
* Creates a new supplier.
*
* @param paintSequence the fill paint sequence.
* @param outlinePaintSequence the outline paint sequence.
* @param strokeSequence the stroke sequence.
* @param outlineStrokeSequence the outline stroke sequence.
* @param shapeSequence the shape sequence.
*/
public DefaultDrawingSupplier(Paint[] paintSequence,
Paint[] outlinePaintSequence,
Stroke[] strokeSequence,
Stroke[] outlineStrokeSequence,
Shape[] shapeSequence) {
this.paintSequence = paintSequence;
this.fillPaintSequence = DEFAULT_FILL_PAINT_SEQUENCE;
this.outlinePaintSequence = outlinePaintSequence;
this.strokeSequence = strokeSequence;
this.outlineStrokeSequence = outlineStrokeSequence;
this.shapeSequence = shapeSequence;
}
/**
* Creates a new supplier.
*
* @param paintSequence the paint sequence.
* @param fillPaintSequence the fill paint sequence.
* @param outlinePaintSequence the outline paint sequence.
* @param strokeSequence the stroke sequence.
* @param outlineStrokeSequence the outline stroke sequence.
* @param shapeSequence the shape sequence.
*
* @since 1.0.6
*/
public DefaultDrawingSupplier(Paint[] paintSequence,
Paint[] fillPaintSequence, Paint[] outlinePaintSequence,
Stroke[] strokeSequence, Stroke[] outlineStrokeSequence,
Shape[] shapeSequence) {
this.paintSequence = paintSequence;
this.fillPaintSequence = fillPaintSequence;
this.outlinePaintSequence = outlinePaintSequence;
this.strokeSequence = strokeSequence;
this.outlineStrokeSequence = outlineStrokeSequence;
this.shapeSequence = shapeSequence;
}
/**
* Returns the next paint in the sequence.
*
* @return The paint.
*/
public Paint getNextPaint() {
Paint result
= this.paintSequence[this.paintIndex % this.paintSequence.length];
this.paintIndex++;
return result;
}
/**
* Returns the next outline paint in the sequence.
*
* @return The paint.
*/
public Paint getNextOutlinePaint() {
Paint result = this.outlinePaintSequence[
this.outlinePaintIndex % this.outlinePaintSequence.length];
this.outlinePaintIndex++;
return result;
}
/**
* Returns the next fill paint in the sequence.
*
* @return The paint.
*
* @since 1.0.6
*/
public Paint getNextFillPaint() {
Paint result = this.fillPaintSequence[this.fillPaintIndex
% this.fillPaintSequence.length];
this.fillPaintIndex++;
return result;
}
/**
* Returns the next stroke in the sequence.
*
* @return The stroke.
*/
public Stroke getNextStroke() {
Stroke result = this.strokeSequence[
this.strokeIndex % this.strokeSequence.length];
this.strokeIndex++;
return result;
}
/**
* Returns the next outline stroke in the sequence.
*
* @return The stroke.
*/
public Stroke getNextOutlineStroke() {
Stroke result = this.outlineStrokeSequence[
this.outlineStrokeIndex % this.outlineStrokeSequence.length];
this.outlineStrokeIndex++;
return result;
}
/**
* Returns the next shape in the sequence.
*
* @return The shape.
*/
public Shape getNextShape() {
Shape result = this.shapeSequence[
this.shapeIndex % this.shapeSequence.length];
this.shapeIndex++;
return result;
}
/**
* Creates an array of standard shapes to display for the items in series
* on charts.
*
* @return The array of shapes.
*/
public static Shape[] createStandardSeriesShapes() {
Shape[] result = new Shape[10];
double size = 6.0;
double delta = size / 2.0;
int[] xpoints = null;
int[] ypoints = null;
// square
result[0] = new Rectangle2D.Double(-delta, -delta, size, size);
// circle
result[1] = new Ellipse2D.Double(-delta, -delta, size, size);
// up-pointing triangle
xpoints = intArray(0.0, delta, -delta);
ypoints = intArray(-delta, delta, delta);
result[2] = new Polygon(xpoints, ypoints, 3);
// diamond
xpoints = intArray(0.0, delta, 0.0, -delta);
ypoints = intArray(-delta, 0.0, delta, 0.0);
result[3] = new Polygon(xpoints, ypoints, 4);
// horizontal rectangle
result[4] = new Rectangle2D.Double(-delta, -delta / 2, size, size / 2);
// down-pointing triangle
xpoints = intArray(-delta, +delta, 0.0);
ypoints = intArray(-delta, -delta, delta);
result[5] = new Polygon(xpoints, ypoints, 3);
// horizontal ellipse
result[6] = new Ellipse2D.Double(-delta, -delta / 2, size, size / 2);
// right-pointing triangle
xpoints = intArray(-delta, delta, -delta);
ypoints = intArray(-delta, 0.0, delta);
result[7] = new Polygon(xpoints, ypoints, 3);
// vertical rectangle
result[8] = new Rectangle2D.Double(-delta / 2, -delta, size / 2, size);
// left-pointing triangle
xpoints = intArray(-delta, delta, delta);
ypoints = intArray(0.0, -delta, +delta);
result[9] = new Polygon(xpoints, ypoints, 3);
return result;
}
/**
* Tests this object for equality with another object.
*
* @param obj the object (<code>null</code> permitted).
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof DefaultDrawingSupplier)) {
return false;
}
DefaultDrawingSupplier that = (DefaultDrawingSupplier) obj;
if (!Arrays.equals(this.paintSequence, that.paintSequence)) {
return false;
}
if (this.paintIndex != that.paintIndex) {
return false;
}
if (!Arrays.equals(this.outlinePaintSequence,
that.outlinePaintSequence)) {
return false;
}
if (this.outlinePaintIndex != that.outlinePaintIndex) {
return false;
}
if (!Arrays.equals(this.strokeSequence, that.strokeSequence)) {
return false;
}
if (this.strokeIndex != that.strokeIndex) {
return false;
}
if (!Arrays.equals(this.outlineStrokeSequence,
that.outlineStrokeSequence)) {
return false;
}
if (this.outlineStrokeIndex != that.outlineStrokeIndex) {
return false;
}
if (!equalShapes(this.shapeSequence, that.shapeSequence)) {
return false;
}
if (this.shapeIndex != that.shapeIndex) {
return false;
}
return true;
}
/**
* A utility method for testing the equality of two arrays of shapes.
*
* @param s1 the first array (<code>null</code> permitted).
* @param s2 the second array (<code>null</code> permitted).
*
* @return A boolean.
*/
private boolean equalShapes(Shape[] s1, Shape[] s2) {
if (s1 == null) {
return s2 == null;
}
if (s2 == null) {
return false;
}
if (s1.length != s2.length) {
return false;
}
for (int i = 0; i < s1.length; i++) {
if (!ShapeUtilities.equal(s1[i], s2[i])) {
return false;
}
}
return true;
}
/**
* Handles serialization.
*
* @param stream the output stream.
*
* @throws IOException if there is an I/O problem.
*/
private void writeObject(ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
int paintCount = this.paintSequence.length;
stream.writeInt(paintCount);
for (int i = 0; i < paintCount; i++) {
SerialUtilities.writePaint(this.paintSequence[i], stream);
}
int outlinePaintCount = this.outlinePaintSequence.length;
stream.writeInt(outlinePaintCount);
for (int i = 0; i < outlinePaintCount; i++) {
SerialUtilities.writePaint(this.outlinePaintSequence[i], stream);
}
int strokeCount = this.strokeSequence.length;
stream.writeInt(strokeCount);
for (int i = 0; i < strokeCount; i++) {
SerialUtilities.writeStroke(this.strokeSequence[i], stream);
}
int outlineStrokeCount = this.outlineStrokeSequence.length;
stream.writeInt(outlineStrokeCount);
for (int i = 0; i < outlineStrokeCount; i++) {
SerialUtilities.writeStroke(this.outlineStrokeSequence[i], stream);
}
int shapeCount = this.shapeSequence.length;
stream.writeInt(shapeCount);
for (int i = 0; i < shapeCount; i++) {
SerialUtilities.writeShape(this.shapeSequence[i], stream);
}
}
/**
* Restores a serialized object.
*
* @param stream the input stream.
*
* @throws IOException if there is an I/O problem.
* @throws ClassNotFoundException if there is a problem loading a class.
*/
private void readObject(ObjectInputStream stream)
throws IOException, ClassNotFoundException {
stream.defaultReadObject();
int paintCount = stream.readInt();
this.paintSequence = new Paint[paintCount];
for (int i = 0; i < paintCount; i++) {
this.paintSequence[i] = SerialUtilities.readPaint(stream);
}
int outlinePaintCount = stream.readInt();
this.outlinePaintSequence = new Paint[outlinePaintCount];
for (int i = 0; i < outlinePaintCount; i++) {
this.outlinePaintSequence[i] = SerialUtilities.readPaint(stream);
}
int strokeCount = stream.readInt();
this.strokeSequence = new Stroke[strokeCount];
for (int i = 0; i < strokeCount; i++) {
this.strokeSequence[i] = SerialUtilities.readStroke(stream);
}
int outlineStrokeCount = stream.readInt();
this.outlineStrokeSequence = new Stroke[outlineStrokeCount];
for (int i = 0; i < outlineStrokeCount; i++) {
this.outlineStrokeSequence[i] = SerialUtilities.readStroke(stream);
}
int shapeCount = stream.readInt();
this.shapeSequence = new Shape[shapeCount];
for (int i = 0; i < shapeCount; i++) {
this.shapeSequence[i] = SerialUtilities.readShape(stream);
}
}
/**
* Helper method to avoid lots of explicit casts in getShape(). Returns
* an array containing the provided doubles cast to ints.
*
* @param a x
* @param b y
* @param c z
*
* @return int[3] with converted params.
*/
private static int[] intArray(double a, double b, double c) {
return new int[] {(int) a, (int) b, (int) c};
}
/**
* Helper method to avoid lots of explicit casts in getShape(). Returns
* an array containing the provided doubles cast to ints.
*
* @param a x
* @param b y
* @param c z
* @param d t
*
* @return int[4] with converted params.
*/
private static int[] intArray(double a, double b, double c, double d) {
return new int[] {(int) a, (int) b, (int) c, (int) d};
}
/**
* Returns a clone.
*
* @return A clone.
*
* @throws CloneNotSupportedException if a component of the supplier does
* not support cloning.
*/
public Object clone() throws CloneNotSupportedException {
DefaultDrawingSupplier clone = (DefaultDrawingSupplier) super.clone();
return clone;
}
}
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