Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2014, 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.] * * --------------------------- * XYLineAndShapeRenderer.java * --------------------------- * (C) Copyright 2004-2014, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes: * -------- * 27-Jan-2004 : Version 1 (DG); * 10-Feb-2004 : Minor change to drawItem() method to make cut-and-paste * overriding easier (DG); * 25-Feb-2004 : Replaced CrosshairInfo with CrosshairState (DG); * 25-Aug-2004 : Added support for chart entities (required for tooltips) (DG); * 24-Sep-2004 : Added flag to allow whole series to be drawn as a path * (necessary when using a dashed stroke with many data * items) (DG); * 04-Oct-2004 : Renamed BooleanUtils --> BooleanUtilities (DG); * 11-Nov-2004 : Now uses ShapeUtilities to translate shapes (DG); * 27-Jan-2005 : The getLegendItem() method now omits hidden series (DG); * 28-Jan-2005 : Added new constructor (DG); * 09-Mar-2005 : Added fillPaint settings (DG); * 20-Apr-2005 : Use generators for legend tooltips and URLs (DG); * 22-Jul-2005 : Renamed defaultLinesVisible --> baseLinesVisible, * defaultShapesVisible --> baseShapesVisible and * defaultShapesFilled --> baseShapesFilled (DG); * 29-Jul-2005 : Added code to draw item labels (DG); * ------------- JFREECHART 1.0.x --------------------------------------------- * 20-Jul-2006 : Set dataset and series indices in LegendItem (DG); * 06-Feb-2007 : Fixed bug 1086307, crosshairs with multiple axes (DG); * 21-Feb-2007 : Fixed bugs in clone() and equals() (DG); * 20-Apr-2007 : Updated getLegendItem() for renderer change (DG); * 18-May-2007 : Set dataset and seriesKey for LegendItem (DG); * 08-Jun-2007 : Fix for bug 1731912 where entities are created even for data * items that are not displayed (DG); * 26-Oct-2007 : Deprecated override attributes (DG); * 02-Jun-2008 : Fixed tooltips at lower edges of data area (DG); * 17-Jun-2008 : Apply legend shape, font and paint attributes (DG); * 19-Sep-2008 : Fixed bug with drawSeriesLineAsPath - patch by Greg Darke (DG); * 18-May-2009 : Clip lines in drawPrimaryLine() (DG); * 05-Jul-2012 : Removed JDK 1.3.1 code (DG); * 02-Jul-2013 : Use ParamChecks (DG); * */ package org.jfree.chart.renderer.xy; import java.awt.Graphics2D; import java.awt.Paint; import java.awt.Shape; import java.awt.Stroke; import java.awt.geom.GeneralPath; import java.awt.geom.Line2D; 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.LegendItem; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.entity.EntityCollection; import org.jfree.chart.event.RendererChangeEvent; import org.jfree.chart.plot.CrosshairState; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.PlotRenderingInfo; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.util.LineUtilities; import org.jfree.chart.util.ParamChecks; import org.jfree.data.xy.XYDataset; import org.jfree.io.SerialUtilities; import org.jfree.ui.RectangleEdge; import org.jfree.util.BooleanList; import org.jfree.util.ObjectUtilities; import org.jfree.util.PublicCloneable; import org.jfree.util.ShapeUtilities; /** * A renderer that connects data points with lines and/or draws shapes at each * data point. This renderer is designed for use with the {@link XYPlot} * class. The example shown here is generated by * the <code>XYLineAndShapeRendererDemo2.java</code> program included in the * JFreeChart demo collection: * <br><br> * <img src="../../../../../images/XYLineAndShapeRendererSample.png" * alt="XYLineAndShapeRendererSample.png"> * */ public class XYLineAndShapeRenderer extends AbstractXYItemRenderer implements XYItemRenderer, Cloneable, PublicCloneable, Serializable { /** For serialization. */ private static final long serialVersionUID = -7435246895986425885L; /** * A flag that controls whether or not lines are visible for ALL series. * * @deprecated As of 1.0.7. */ private Boolean linesVisible; /** * A table of flags that control (per series) whether or not lines are * visible. */ private BooleanList seriesLinesVisible; /** The default value returned by the getLinesVisible() method. */ private boolean baseLinesVisible; /** The shape that is used to represent a line in the legend. */ private transient Shape legendLine; /** * A flag that controls whether or not shapes are visible for ALL series. * * @deprecated As of 1.0.7. */ private Boolean shapesVisible; /** * A table of flags that control (per series) whether or not shapes are * visible. */ private BooleanList seriesShapesVisible; /** The default value returned by the getShapeVisible() method. */ private boolean baseShapesVisible; /** * A flag that controls whether or not shapes are filled for ALL series. * * @deprecated As of 1.0.7. */ private Boolean shapesFilled; /** * A table of flags that control (per series) whether or not shapes are * filled. */ private BooleanList seriesShapesFilled; /** The default value returned by the getShapeFilled() method. */ private boolean baseShapesFilled; /** A flag that controls whether outlines are drawn for shapes. */ private boolean drawOutlines; /** * A flag that controls whether the fill paint is used for filling * shapes. */ private boolean useFillPaint; /** * A flag that controls whether the outline paint is used for drawing shape * outlines. */ private boolean useOutlinePaint; /** * A flag that controls whether or not each series is drawn as a single * path. */ private boolean drawSeriesLineAsPath; /** * Creates a new renderer with both lines and shapes visible. */ public XYLineAndShapeRenderer() { this(true, true); } /** * Creates a new renderer. * * @param lines lines visible? * @param shapes shapes visible? */ public XYLineAndShapeRenderer(boolean lines, boolean shapes) { this.linesVisible = null; this.seriesLinesVisible = new BooleanList(); this.baseLinesVisible = lines; this.legendLine = new Line2D.Double(-7.0, 0.0, 7.0, 0.0); this.shapesVisible = null; this.seriesShapesVisible = new BooleanList(); this.baseShapesVisible = shapes; this.shapesFilled = null; this.useFillPaint = false; // use item paint for fills by default this.seriesShapesFilled = new BooleanList(); this.baseShapesFilled = true; this.drawOutlines = true; this.useOutlinePaint = false; // use item paint for outlines by // default, not outline paint this.drawSeriesLineAsPath = false; } /** * Returns a flag that controls whether or not each series is drawn as a * single path. * * @return A boolean. * * @see #setDrawSeriesLineAsPath(boolean) */ public boolean getDrawSeriesLineAsPath() { return this.drawSeriesLineAsPath; } /** * Sets the flag that controls whether or not each series is drawn as a * single path and sends a {@link RendererChangeEvent} to all registered * listeners. * * @param flag the flag. * * @see #getDrawSeriesLineAsPath() */ public void setDrawSeriesLineAsPath(boolean flag) { if (this.drawSeriesLineAsPath != flag) { this.drawSeriesLineAsPath = flag; fireChangeEvent(); } } /** * Returns the number of passes through the data that the renderer requires * in order to draw the chart. Most charts will require a single pass, but * some require two passes. * * @return The pass count. */ @Override public int getPassCount() { return 2; } // LINES VISIBLE /** * Returns the flag used to control whether or not the shape for an item is * visible. * * @param series the series index (zero-based). * @param item the item index (zero-based). * * @return A boolean. */ public boolean getItemLineVisible(int series, int item) { Boolean flag = this.linesVisible; if (flag == null) { flag = getSeriesLinesVisible(series); } if (flag != null) { return flag.booleanValue(); } else { return this.baseLinesVisible; } } /** * Returns a flag that controls whether or not lines are drawn for ALL * series. If this flag is <code>null</code>, then the "per series" * settings will apply. * * @return A flag (possibly <code>null</code>). * * @see #setLinesVisible(Boolean) * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public Boolean getLinesVisible() { return this.linesVisible; } /** * Sets a flag that controls whether or not lines are drawn between the * items in ALL series, and sends a {@link RendererChangeEvent} to all * registered listeners. You need to set this to <code>null</code> if you * want the "per series" settings to apply. * * @param visible the flag (<code>null</code> permitted). * * @see #getLinesVisible() * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setLinesVisible(Boolean visible) { this.linesVisible = visible; fireChangeEvent(); } /** * Sets a flag that controls whether or not lines are drawn between the * items in ALL series, and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param visible the flag. * * @see #getLinesVisible() * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setLinesVisible(boolean visible) { setLinesVisible(Boolean.valueOf(visible)); } /** * Returns the flag used to control whether or not the lines for a series * are visible. * * @param series the series index (zero-based). * * @return The flag (possibly <code>null</code>). * * @see #setSeriesLinesVisible(int, Boolean) */ public Boolean getSeriesLinesVisible(int series) { return this.seriesLinesVisible.getBoolean(series); } /** * Sets the 'lines visible' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param flag the flag (<code>null</code> permitted). * * @see #getSeriesLinesVisible(int) */ public void setSeriesLinesVisible(int series, Boolean flag) { this.seriesLinesVisible.setBoolean(series, flag); fireChangeEvent(); } /** * Sets the 'lines visible' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param visible the flag. * * @see #getSeriesLinesVisible(int) */ public void setSeriesLinesVisible(int series, boolean visible) { setSeriesLinesVisible(series, Boolean.valueOf(visible)); } /** * Returns the base 'lines visible' attribute. * * @return The base flag. * * @see #setBaseLinesVisible(boolean) */ public boolean getBaseLinesVisible() { return this.baseLinesVisible; } /** * Sets the base 'lines visible' flag and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param flag the flag. * * @see #getBaseLinesVisible() */ public void setBaseLinesVisible(boolean flag) { this.baseLinesVisible = flag; fireChangeEvent(); } /** * Returns the shape used to represent a line in the legend. * * @return The legend line (never <code>null</code>). * * @see #setLegendLine(Shape) */ public Shape getLegendLine() { return this.legendLine; } /** * Sets the shape used as a line in each legend item and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param line the line (<code>null</code> not permitted). * * @see #getLegendLine() */ public void setLegendLine(Shape line) { ParamChecks.nullNotPermitted(line, "line"); this.legendLine = line; fireChangeEvent(); } // SHAPES VISIBLE /** * Returns the flag used to control whether or not the shape for an item is * visible. * <p> * The default implementation passes control to the * <code>getSeriesShapesVisible</code> method. You can override this method * if you require different behaviour. * * @param series the series index (zero-based). * @param item the item index (zero-based). * * @return A boolean. */ public boolean getItemShapeVisible(int series, int item) { Boolean flag = this.shapesVisible; if (flag == null) { flag = getSeriesShapesVisible(series); } if (flag != null) { return flag.booleanValue(); } else { return this.baseShapesVisible; } } /** * Returns the flag that controls whether the shapes are visible for the * items in ALL series. * * @return The flag (possibly <code>null</code>). * * @see #setShapesVisible(Boolean) * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public Boolean getShapesVisible() { return this.shapesVisible; } /** * Sets the 'shapes visible' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param visible the flag (<code>null</code> permitted). * * @see #getShapesVisible() * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setShapesVisible(Boolean visible) { this.shapesVisible = visible; fireChangeEvent(); } /** * Sets the 'shapes visible' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param visible the flag. * * @see #getShapesVisible() * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setShapesVisible(boolean visible) { setShapesVisible(Boolean.valueOf(visible)); } /** * Returns the flag used to control whether or not the shapes for a series * are visible. * * @param series the series index (zero-based). * * @return A boolean. * * @see #setSeriesShapesVisible(int, Boolean) */ public Boolean getSeriesShapesVisible(int series) { return this.seriesShapesVisible.getBoolean(series); } /** * Sets the 'shapes visible' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param visible the flag. * * @see #getSeriesShapesVisible(int) */ public void setSeriesShapesVisible(int series, boolean visible) { setSeriesShapesVisible(series, Boolean.valueOf(visible)); } /** * Sets the 'shapes visible' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param flag the flag. * * @see #getSeriesShapesVisible(int) */ public void setSeriesShapesVisible(int series, Boolean flag) { this.seriesShapesVisible.setBoolean(series, flag); fireChangeEvent(); } /** * Returns the base 'shape visible' attribute. * * @return The base flag. * * @see #setBaseShapesVisible(boolean) */ public boolean getBaseShapesVisible() { return this.baseShapesVisible; } /** * Sets the base 'shapes visible' flag and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param flag the flag. * * @see #getBaseShapesVisible() */ public void setBaseShapesVisible(boolean flag) { this.baseShapesVisible = flag; fireChangeEvent(); } // SHAPES FILLED /** * Returns the flag used to control whether or not the shape for an item * is filled. * <p> * The default implementation passes control to the * <code>getSeriesShapesFilled</code> method. You can override this method * if you require different behaviour. * * @param series the series index (zero-based). * @param item the item index (zero-based). * * @return A boolean. */ public boolean getItemShapeFilled(int series, int item) { Boolean flag = this.shapesFilled; if (flag == null) { flag = getSeriesShapesFilled(series); } if (flag != null) { return flag.booleanValue(); } else { return this.baseShapesFilled; } } /** * Sets the 'shapes filled' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param filled the flag. * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setShapesFilled(boolean filled) { setShapesFilled(Boolean.valueOf(filled)); } /** * Sets the 'shapes filled' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param filled the flag (<code>null</code> permitted). * * @deprecated As of 1.0.7, use the per-series and base level settings. */ public void setShapesFilled(Boolean filled) { this.shapesFilled = filled; fireChangeEvent(); } /** * Returns the flag used to control whether or not the shapes for a series * are filled. * * @param series the series index (zero-based). * * @return A boolean. * * @see #setSeriesShapesFilled(int, Boolean) */ public Boolean getSeriesShapesFilled(int series) { return this.seriesShapesFilled.getBoolean(series); } /** * Sets the 'shapes filled' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param flag the flag. * * @see #getSeriesShapesFilled(int) */ public void setSeriesShapesFilled(int series, boolean flag) { setSeriesShapesFilled(series, Boolean.valueOf(flag)); } /** * Sets the 'shapes filled' flag for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param flag the flag. * * @see #getSeriesShapesFilled(int) */ public void setSeriesShapesFilled(int series, Boolean flag) { this.seriesShapesFilled.setBoolean(series, flag); fireChangeEvent(); } /** * Returns the base 'shape filled' attribute. * * @return The base flag. * * @see #setBaseShapesFilled(boolean) */ public boolean getBaseShapesFilled() { return this.baseShapesFilled; } /** * Sets the base 'shapes filled' flag and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param flag the flag. * * @see #getBaseShapesFilled() */ public void setBaseShapesFilled(boolean flag) { this.baseShapesFilled = flag; fireChangeEvent(); } /** * Returns <code>true</code> if outlines should be drawn for shapes, and * <code>false</code> otherwise. * * @return A boolean. * * @see #setDrawOutlines(boolean) */ public boolean getDrawOutlines() { return this.drawOutlines; } /** * Sets the flag that controls whether outlines are drawn for * shapes, and sends a {@link RendererChangeEvent} to all registered * listeners. * <P> * In some cases, shapes look better if they do NOT have an outline, but * this flag allows you to set your own preference. * * @param flag the flag. * * @see #getDrawOutlines() */ public void setDrawOutlines(boolean flag) { this.drawOutlines = flag; fireChangeEvent(); } /** * Returns <code>true</code> if the renderer should use the fill paint * setting to fill shapes, and <code>false</code> if it should just * use the regular paint. * <p> * Refer to <code>XYLineAndShapeRendererDemo2.java</code> to see the * effect of this flag. * * @return A boolean. * * @see #setUseFillPaint(boolean) * @see #getUseOutlinePaint() */ public boolean getUseFillPaint() { return this.useFillPaint; } /** * Sets the flag that controls whether the fill paint is used to fill * shapes, and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param flag the flag. * * @see #getUseFillPaint() */ public void setUseFillPaint(boolean flag) { this.useFillPaint = flag; fireChangeEvent(); } /** * Returns <code>true</code> if the renderer should use the outline paint * setting to draw shape outlines, and <code>false</code> if it should just * use the regular paint. * * @return A boolean. * * @see #setUseOutlinePaint(boolean) * @see #getUseFillPaint() */ public boolean getUseOutlinePaint() { return this.useOutlinePaint; } /** * Sets the flag that controls whether the outline paint is used to draw * shape outlines, and sends a {@link RendererChangeEvent} to all * registered listeners. * <p> * Refer to <code>XYLineAndShapeRendererDemo2.java</code> to see the * effect of this flag. * * @param flag the flag. * * @see #getUseOutlinePaint() */ public void setUseOutlinePaint(boolean flag) { this.useOutlinePaint = flag; fireChangeEvent(); } /** * Records the state for the renderer. This is used to preserve state * information between calls to the drawItem() method for a single chart * drawing. */ public static class State extends XYItemRendererState { /** The path for the current series. */ public GeneralPath seriesPath; /** * A flag that indicates if the last (x, y) point was 'good' * (non-null). */ private boolean lastPointGood; /** * Creates a new state instance. * * @param info the plot rendering info. */ public State(PlotRenderingInfo info) { super(info); this.seriesPath = new GeneralPath(); } /** * Returns a flag that indicates if the last point drawn (in the * current series) was 'good' (non-null). * * @return A boolean. */ public boolean isLastPointGood() { return this.lastPointGood; } /** * Sets a flag that indicates if the last point drawn (in the current * series) was 'good' (non-null). * * @param good the flag. */ public void setLastPointGood(boolean good) { this.lastPointGood = good; } /** * This method is called by the {@link XYPlot} at the start of each * series pass. We reset the state for the current series. * * @param dataset the dataset. * @param series the series index. * @param firstItem the first item index for this pass. * @param lastItem the last item index for this pass. * @param pass the current pass index. * @param passCount the number of passes. */ @Override public void startSeriesPass(XYDataset dataset, int series, int firstItem, int lastItem, int pass, int passCount) { this.seriesPath.reset(); this.lastPointGood = false; super.startSeriesPass(dataset, series, firstItem, lastItem, pass, passCount); } } /** * Initialises the renderer. * <P> * This method will be called before the first item is rendered, giving the * renderer an opportunity to initialise any state information it wants to * maintain. The renderer can do nothing if it chooses. * * @param g2 the graphics device. * @param dataArea the area inside the axes. * @param plot the plot. * @param data the data. * @param info an optional info collection object to return data back to * the caller. * * @return The renderer state. */ @Override public XYItemRendererState initialise(Graphics2D g2, Rectangle2D dataArea, XYPlot plot, XYDataset data, PlotRenderingInfo info) { return new State(info); } /** * Draws the visual representation of a single data item. * * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area within which the data is being drawn. * @param info collects information about the drawing. * @param plot the plot (can be used to obtain standard color * information etc). * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param dataset the dataset. * @param series the series index (zero-based). * @param item the item index (zero-based). * @param crosshairState crosshair information for the plot * (<code>null</code> permitted). * @param pass the pass index. */ @Override public void drawItem(Graphics2D g2, XYItemRendererState state, Rectangle2D dataArea, PlotRenderingInfo info, XYPlot plot, ValueAxis domainAxis, ValueAxis rangeAxis, XYDataset dataset, int series, int item, CrosshairState crosshairState, int pass) { // do nothing if item is not visible if (!getItemVisible(series, item)) { return; } // first pass draws the background (lines, for instance) if (isLinePass(pass)) { if (getItemLineVisible(series, item)) { if (this.drawSeriesLineAsPath) { drawPrimaryLineAsPath(state, g2, plot, dataset, pass, series, item, domainAxis, rangeAxis, dataArea); } else { drawPrimaryLine(state, g2, plot, dataset, pass, series, item, domainAxis, rangeAxis, dataArea); } } } // second pass adds shapes where the items are .. else if (isItemPass(pass)) { // setup for collecting optional entity info... EntityCollection entities = null; if (info != null && info.getOwner() != null) { entities = info.getOwner().getEntityCollection(); } drawSecondaryPass(g2, plot, dataset, pass, series, item, domainAxis, dataArea, rangeAxis, crosshairState, entities); } } /** * Returns <code>true</code> if the specified pass is the one for drawing * lines. * * @param pass the pass. * * @return A boolean. */ protected boolean isLinePass(int pass) { return pass == 0; } /** * Returns <code>true</code> if the specified pass is the one for drawing * items. * * @param pass the pass. * * @return A boolean. */ protected boolean isItemPass(int pass) { return pass == 1; } /** * Draws the item (first pass). This method draws the lines * connecting the items. * * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area within which the data is being drawn. * @param plot the plot (can be used to obtain standard color * information etc). * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param dataset the dataset. * @param pass the pass. * @param series the series index (zero-based). * @param item the item index (zero-based). */ protected void drawPrimaryLine(XYItemRendererState state, Graphics2D g2, XYPlot plot, XYDataset dataset, int pass, int series, int item, ValueAxis domainAxis, ValueAxis rangeAxis, Rectangle2D dataArea) { if (item == 0) { return; } // get the data point... double x1 = dataset.getXValue(series, item); double y1 = dataset.getYValue(series, item); if (Double.isNaN(y1) || Double.isNaN(x1)) { return; } double x0 = dataset.getXValue(series, item - 1); double y0 = dataset.getYValue(series, item - 1); if (Double.isNaN(y0) || Double.isNaN(x0)) { return; } RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); double transX0 = domainAxis.valueToJava2D(x0, dataArea, xAxisLocation); double transY0 = rangeAxis.valueToJava2D(y0, dataArea, yAxisLocation); double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); // only draw if we have good values if (Double.isNaN(transX0) || Double.isNaN(transY0) || Double.isNaN(transX1) || Double.isNaN(transY1)) { return; } PlotOrientation orientation = plot.getOrientation(); boolean visible; if (orientation == PlotOrientation.HORIZONTAL) { state.workingLine.setLine(transY0, transX0, transY1, transX1); } else if (orientation == PlotOrientation.VERTICAL) { state.workingLine.setLine(transX0, transY0, transX1, transY1); } visible = LineUtilities.clipLine(state.workingLine, dataArea); if (visible) { drawFirstPassShape(g2, pass, series, item, state.workingLine); } } /** * Draws the first pass shape. * * @param g2 the graphics device. * @param pass the pass. * @param series the series index. * @param item the item index. * @param shape the shape. */ protected void drawFirstPassShape(Graphics2D g2, int pass, int series, int item, Shape shape) { g2.setStroke(getItemStroke(series, item)); g2.setPaint(getItemPaint(series, item)); g2.draw(shape); } /** * Draws the item (first pass). This method draws the lines * connecting the items. Instead of drawing separate lines, * a GeneralPath is constructed and drawn at the end of * the series painting. * * @param g2 the graphics device. * @param state the renderer state. * @param plot the plot (can be used to obtain standard color information * etc). * @param dataset the dataset. * @param pass the pass. * @param series the series index (zero-based). * @param item the item index (zero-based). * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param dataArea the area within which the data is being drawn. */ protected void drawPrimaryLineAsPath(XYItemRendererState state, Graphics2D g2, XYPlot plot, XYDataset dataset, int pass, int series, int item, ValueAxis domainAxis, ValueAxis rangeAxis, Rectangle2D dataArea) { RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); // get the data point... double x1 = dataset.getXValue(series, item); double y1 = dataset.getYValue(series, item); double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); State s = (State) state; // update path to reflect latest point if (!Double.isNaN(transX1) && !Double.isNaN(transY1)) { float x = (float) transX1; float y = (float) transY1; PlotOrientation orientation = plot.getOrientation(); if (orientation == PlotOrientation.HORIZONTAL) { x = (float) transY1; y = (float) transX1; } if (s.isLastPointGood()) { s.seriesPath.lineTo(x, y); } else { s.seriesPath.moveTo(x, y); } s.setLastPointGood(true); } else { s.setLastPointGood(false); } // if this is the last item, draw the path ... if (item == s.getLastItemIndex()) { // draw path drawFirstPassShape(g2, pass, series, item, s.seriesPath); } } /** * Draws the item shapes and adds chart entities (second pass). This method * draws the shapes which mark the item positions. If <code>entities</code> * is not <code>null</code> it will be populated with entity information * for points that fall within the data area. * * @param g2 the graphics device. * @param plot the plot (can be used to obtain standard color * information etc). * @param domainAxis the domain axis. * @param dataArea the area within which the data is being drawn. * @param rangeAxis the range axis. * @param dataset the dataset. * @param pass the pass. * @param series the series index (zero-based). * @param item the item index (zero-based). * @param crosshairState the crosshair state. * @param entities the entity collection. */ protected void drawSecondaryPass(Graphics2D g2, XYPlot plot, XYDataset dataset, int pass, int series, int item, ValueAxis domainAxis, Rectangle2D dataArea, ValueAxis rangeAxis, CrosshairState crosshairState, EntityCollection entities) { Shape entityArea = null; // get the data point... double x1 = dataset.getXValue(series, item); double y1 = dataset.getYValue(series, item); if (Double.isNaN(y1) || Double.isNaN(x1)) { return; } PlotOrientation orientation = plot.getOrientation(); RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); if (getItemShapeVisible(series, item)) { Shape shape = getItemShape(series, item); if (orientation == PlotOrientation.HORIZONTAL) { shape = ShapeUtilities.createTranslatedShape(shape, transY1, transX1); } else if (orientation == PlotOrientation.VERTICAL) { shape = ShapeUtilities.createTranslatedShape(shape, transX1, transY1); } entityArea = shape; if (shape.intersects(dataArea)) { if (getItemShapeFilled(series, item)) { if (this.useFillPaint) { g2.setPaint(getItemFillPaint(series, item)); } else { g2.setPaint(getItemPaint(series, item)); } g2.fill(shape); } if (this.drawOutlines) { if (getUseOutlinePaint()) { g2.setPaint(getItemOutlinePaint(series, item)); } else { g2.setPaint(getItemPaint(series, item)); } g2.setStroke(getItemOutlineStroke(series, item)); g2.draw(shape); } } } double xx = transX1; double yy = transY1; if (orientation == PlotOrientation.HORIZONTAL) { xx = transY1; yy = transX1; } // draw the item label if there is one... if (isItemLabelVisible(series, item)) { drawItemLabel(g2, orientation, dataset, series, item, xx, yy, (y1 < 0.0)); } int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, rangeAxisIndex, transX1, transY1, orientation); // add an entity for the item, but only if it falls within the data // area... if (entities != null && isPointInRect(dataArea, xx, yy)) { addEntity(entities, entityArea, dataset, series, item, xx, yy); } } /** * Returns a legend item for the specified series. * * @param datasetIndex the dataset index (zero-based). * @param series the series index (zero-based). * * @return A legend item for the series (possibly {@code null}). */ @Override public LegendItem getLegendItem(int datasetIndex, int series) { XYPlot plot = getPlot(); if (plot == null) { return null; } XYDataset dataset = plot.getDataset(datasetIndex); if (dataset == null) { return null; } if (!getItemVisible(series, 0)) { return null; } String label = getLegendItemLabelGenerator().generateLabel(dataset, series); String description = label; String toolTipText = null; if (getLegendItemToolTipGenerator() != null) { toolTipText = getLegendItemToolTipGenerator().generateLabel(dataset, series); } String urlText = null; if (getLegendItemURLGenerator() != null) { urlText = getLegendItemURLGenerator().generateLabel(dataset, series); } boolean shapeIsVisible = getItemShapeVisible(series, 0); Shape shape = lookupLegendShape(series); boolean shapeIsFilled = getItemShapeFilled(series, 0); Paint fillPaint = (this.useFillPaint ? lookupSeriesFillPaint(series) : lookupSeriesPaint(series)); boolean shapeOutlineVisible = this.drawOutlines; Paint outlinePaint = (this.useOutlinePaint ? lookupSeriesOutlinePaint(series) : lookupSeriesPaint(series)); Stroke outlineStroke = lookupSeriesOutlineStroke(series); boolean lineVisible = getItemLineVisible(series, 0); Stroke lineStroke = lookupSeriesStroke(series); Paint linePaint = lookupSeriesPaint(series); LegendItem result = new LegendItem(label, description, toolTipText, urlText, shapeIsVisible, shape, shapeIsFilled, fillPaint, shapeOutlineVisible, outlinePaint, outlineStroke, lineVisible, this.legendLine, lineStroke, linePaint); result.setLabelFont(lookupLegendTextFont(series)); Paint labelPaint = lookupLegendTextPaint(series); if (labelPaint != null) { result.setLabelPaint(labelPaint); } result.setSeriesKey(dataset.getSeriesKey(series)); result.setSeriesIndex(series); result.setDataset(dataset); result.setDatasetIndex(datasetIndex); return result; } /** * Returns a clone of the renderer. * * @return A clone. * * @throws CloneNotSupportedException if the clone cannot be created. */ @Override public Object clone() throws CloneNotSupportedException { XYLineAndShapeRenderer clone = (XYLineAndShapeRenderer) super.clone(); clone.seriesLinesVisible = (BooleanList) this.seriesLinesVisible.clone(); if (this.legendLine != null) { clone.legendLine = ShapeUtilities.clone(this.legendLine); } clone.seriesShapesVisible = (BooleanList) this.seriesShapesVisible.clone(); clone.seriesShapesFilled = (BooleanList) this.seriesShapesFilled.clone(); return clone; } /** * Tests this renderer for equality with an arbitrary object. * * @param obj the object (<code>null</code> permitted). * * @return <code>true</code> or <code>false</code>. */ @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof XYLineAndShapeRenderer)) { return false; } if (!super.equals(obj)) { return false; } XYLineAndShapeRenderer that = (XYLineAndShapeRenderer) obj; if (!ObjectUtilities.equal(this.linesVisible, that.linesVisible)) { return false; } if (!ObjectUtilities.equal(this.seriesLinesVisible, that.seriesLinesVisible)) { return false; } if (this.baseLinesVisible != that.baseLinesVisible) { return false; } if (!ShapeUtilities.equal(this.legendLine, that.legendLine)) { return false; } if (!ObjectUtilities.equal(this.shapesVisible, that.shapesVisible)) { return false; } if (!ObjectUtilities.equal(this.seriesShapesVisible, that.seriesShapesVisible)) { return false; } if (this.baseShapesVisible != that.baseShapesVisible) { return false; } if (!ObjectUtilities.equal(this.shapesFilled, that.shapesFilled)) { return false; } if (!ObjectUtilities.equal(this.seriesShapesFilled, that.seriesShapesFilled)) { return false; } if (this.baseShapesFilled != that.baseShapesFilled) { return false; } if (this.drawOutlines != that.drawOutlines) { return false; } if (this.useOutlinePaint != that.useOutlinePaint) { return false; } if (this.useFillPaint != that.useFillPaint) { return false; } if (this.drawSeriesLineAsPath != that.drawSeriesLineAsPath) { return false; } return true; } /** * Provides serialization support. * * @param stream the input stream. * * @throws IOException if there is an I/O error. * @throws ClassNotFoundException if there is a classpath problem. */ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException { stream.defaultReadObject(); this.legendLine = SerialUtilities.readShape(stream); } /** * Provides serialization support. * * @param stream the output stream. * * @throws IOException if there is an I/O error. */ private void writeObject(ObjectOutputStream stream) throws IOException { stream.defaultWriteObject(); SerialUtilities.writeShape(this.legendLine, stream); } }