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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D APIs, it currently supports bar charts, pie charts,
line charts, XY-plots and time series plots.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2013, 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.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -------------
* ClipPath.java
* -------------
* (C) Copyright 2003-2013, by David M. O'Donnell and Contributors.
*
* Original Author: David M. O'Donnell;
* Contributor(s): David Gilbert (for Object Refinery Limited);
* Nicolas Brodu;
*
* Changes
* -------
* 22-Apr-2003 : Added standard header (DG);
* 09-May-2003 : Added AxisLocation (DG);
* 11-Sep-2003 : Implemented Cloneable (NB);
* 21-Jan-2004 : Update for renamed method in ValueAxis (DG);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 31-Jan-2007 : Deprecated (DG);
*
*/
package org.jfree.chart;
import java.awt.BasicStroke;
import java.awt.Composite;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.Stroke;
import java.awt.geom.GeneralPath;
import java.awt.geom.Rectangle2D;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYBlockRenderer;
import org.jfree.ui.RectangleEdge;
/**
* This class would typically be used with a
* {@link org.jfree.chart.plot.ContourPlot}. It allows the user to define a
* GeneralPath curve in plot coordinates. This curve can then be
* used mask off or define regions within the contour plot. The data must be
* sorted.
*
* @deprecated This class is no longer supported (as of version 1.0.4). If
* you are creating contour plots, please try to use {@link XYPlot} and
* {@link XYBlockRenderer}.
*/
public class ClipPath implements Cloneable {
/** The x values. */
private double[] xValue = null;
/** The y values. */
private double[] yValue = null;
/** Controls whether drawing will be clipped (
* false would still allow the drawing or filling of path */
private boolean clip = true;
/** Controls whether the path is drawn as an outline. */
private boolean drawPath = false;
/** Controls whether the path is filled. */
private boolean fillPath = false;
/** The fill paint. */
private Paint fillPaint = null;
/** The draw paint. */
private Paint drawPaint = null;
/** The draw stroke. */
private Stroke drawStroke = null;
/** The composite. */
private Composite composite = null;
/**
* Constructor for ClipPath.
*/
public ClipPath() {
super();
}
/**
* Constructor for ClipPath.
* Default values are assumed for the fillPath and drawPath options as
* false and true respectively. The fillPaint is set to Color.GRAY, the
* drawColor is Color.BLUE, the stroke is BasicStroke(1)
* and the composite is AlphaComposite.Src.
*
* @param xValue x coordinates of curved to be created
* @param yValue y coordinates of curved to be created
*/
public ClipPath(double[] xValue, double[] yValue) {
this(xValue, yValue, true, false, true);
}
/**
* Constructor for ClipPath.
* The fillPaint is set to Color.GRAY, the drawColor is Color.BLUE, the
* stroke is BasicStroke(1) and the composite is AlphaComposite.Src.
*
* @param xValue x coordinates of curved to be created
* @param yValue y coordinates of curved to be created
* @param clip clip?
* @param fillPath whether the path is to filled
* @param drawPath whether the path is to drawn as an outline
*/
public ClipPath(double[] xValue, double[] yValue,
boolean clip, boolean fillPath, boolean drawPath) {
this.xValue = xValue;
this.yValue = yValue;
this.clip = clip;
this.fillPath = fillPath;
this.drawPath = drawPath;
this.fillPaint = java.awt.Color.gray;
this.drawPaint = java.awt.Color.blue;
this.drawStroke = new BasicStroke(1);
this.composite = java.awt.AlphaComposite.Src;
}
/**
* Constructor for ClipPath.
*
* @param xValue x coordinates of curved to be created
* @param yValue y coordinates of curved to be created
* @param fillPath whether the path is to filled
* @param drawPath whether the path is to drawn as an outline
* @param fillPaint the fill paint
* @param drawPaint the outline stroke color
* @param drawStroke the stroke style
* @param composite the composite rule
*/
public ClipPath(double[] xValue, double[] yValue, boolean fillPath,
boolean drawPath, Paint fillPaint, Paint drawPaint,
Stroke drawStroke, Composite composite) {
this.xValue = xValue;
this.yValue = yValue;
this.fillPath = fillPath;
this.drawPath = drawPath;
this.fillPaint = fillPaint;
this.drawPaint = drawPaint;
this.drawStroke = drawStroke;
this.composite = composite;
}
/**
* Draws the clip path.
*
* @param g2 current graphics2D.
* @param dataArea the dataArea that the plot is being draw in.
* @param horizontalAxis the horizontal axis.
* @param verticalAxis the vertical axis.
*
* @return The GeneralPath defining the outline
*/
public GeneralPath draw(Graphics2D g2,
Rectangle2D dataArea,
ValueAxis horizontalAxis, ValueAxis verticalAxis) {
GeneralPath generalPath = generateClipPath(
dataArea, horizontalAxis, verticalAxis
);
if (this.fillPath || this.drawPath) {
Composite saveComposite = g2.getComposite();
Paint savePaint = g2.getPaint();
Stroke saveStroke = g2.getStroke();
if (this.fillPaint != null) {
g2.setPaint(this.fillPaint);
}
if (this.composite != null) {
g2.setComposite(this.composite);
}
if (this.fillPath) {
g2.fill(generalPath);
}
if (this.drawStroke != null) {
g2.setStroke(this.drawStroke);
}
if (this.drawPath) {
g2.draw(generalPath);
}
g2.setPaint(savePaint);
g2.setComposite(saveComposite);
g2.setStroke(saveStroke);
}
return generalPath;
}
/**
* Generates the clip path.
*
* @param dataArea the dataArea that the plot is being draw in.
* @param horizontalAxis the horizontal axis.
* @param verticalAxis the vertical axis.
*
* @return The GeneralPath defining the outline
*/
public GeneralPath generateClipPath(Rectangle2D dataArea,
ValueAxis horizontalAxis,
ValueAxis verticalAxis) {
GeneralPath generalPath = new GeneralPath();
double transX = horizontalAxis.valueToJava2D(
this.xValue[0], dataArea, RectangleEdge.BOTTOM
);
double transY = verticalAxis.valueToJava2D(
this.yValue[0], dataArea, RectangleEdge.LEFT
);
generalPath.moveTo((float) transX, (float) transY);
for (int k = 0; k < this.yValue.length; k++) {
transX = horizontalAxis.valueToJava2D(
this.xValue[k], dataArea, RectangleEdge.BOTTOM
);
transY = verticalAxis.valueToJava2D(
this.yValue[k], dataArea, RectangleEdge.LEFT
);
generalPath.lineTo((float) transX, (float) transY);
}
generalPath.closePath();
return generalPath;
}
/**
* Returns the composite.
*
* @return Composite
*/
public Composite getComposite() {
return this.composite;
}
/**
* Returns the drawPaint.
*
* @return Paint
*/
public Paint getDrawPaint() {
return this.drawPaint;
}
/**
* Returns the drawPath.
*
* @return boolean
*/
public boolean isDrawPath() {
return this.drawPath;
}
/**
* Returns the drawStroke.
*
* @return Stroke
*/
public Stroke getDrawStroke() {
return this.drawStroke;
}
/**
* Returns the fillPaint.
*
* @return Paint
*/
public Paint getFillPaint() {
return this.fillPaint;
}
/**
* Returns the fillPath.
*
* @return boolean
*/
public boolean isFillPath() {
return this.fillPath;
}
/**
* Returns the xValue.
*
* @return double[]
*/
public double[] getXValue() {
return this.xValue;
}
/**
* Returns the yValue.
*
* @return double[]
*/
public double[] getYValue() {
return this.yValue;
}
/**
* Sets the composite.
*
* @param composite The composite to set
*/
public void setComposite(Composite composite) {
this.composite = composite;
}
/**
* Sets the drawPaint.
*
* @param drawPaint The drawPaint to set
*/
public void setDrawPaint(Paint drawPaint) {
this.drawPaint = drawPaint;
}
/**
* Sets the drawPath.
*
* @param drawPath The drawPath to set
*/
public void setDrawPath(boolean drawPath) {
this.drawPath = drawPath;
}
/**
* Sets the drawStroke.
*
* @param drawStroke The drawStroke to set
*/
public void setDrawStroke(Stroke drawStroke) {
this.drawStroke = drawStroke;
}
/**
* Sets the fillPaint.
*
* @param fillPaint The fillPaint to set
*/
public void setFillPaint(Paint fillPaint) {
this.fillPaint = fillPaint;
}
/**
* Sets the fillPath.
*
* @param fillPath The fillPath to set
*/
public void setFillPath(boolean fillPath) {
this.fillPath = fillPath;
}
/**
* Sets the xValue.
*
* @param xValue The xValue to set
*/
public void setXValue(double[] xValue) {
this.xValue = xValue;
}
/**
* Sets the yValue.
*
* @param yValue The yValue to set
*/
public void setYValue(double[] yValue) {
this.yValue = yValue;
}
/**
* Returns the clip.
*
* @return boolean
*/
public boolean isClip() {
return this.clip;
}
/**
* Sets the clip.
*
* @param clip The clip to set
*/
public void setClip(boolean clip) {
this.clip = clip;
}
/**
* Returns a clone of the object (a deeper clone than default to avoid bugs
* when setting values in cloned object).
*
* @return The clone.
*
* @throws CloneNotSupportedException if cloning is not supported.
*/
@Override
public Object clone() throws CloneNotSupportedException {
ClipPath clone = (ClipPath) super.clone();
clone.xValue = (double[]) this.xValue.clone();
clone.yValue = (double[]) this.yValue.clone();
return clone;
}
}