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.] * * ------------------------- * LineAndShapeRenderer.java * ------------------------- * (C) Copyright 2001-2014, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): Mark Watson (www.markwatson.com); * Jeremy Bowman; * Richard Atkinson; * Christian W. Zuckschwerdt; * Peter Kolb (patch 2497611); * * Changes * ------- * 23-Oct-2001 : Version 1 (DG); * 15-Nov-2001 : Modified to allow for null data values (DG); * 16-Jan-2002 : Renamed HorizontalCategoryItemRenderer.java * --> CategoryItemRenderer.java (DG); * 05-Feb-2002 : Changed return type of the drawCategoryItem method from void * to Shape, as part of the tooltips implementation (DG); * 11-May-2002 : Support for value label drawing (JB); * 29-May-2002 : Now extends AbstractCategoryItemRenderer (DG); * 25-Jun-2002 : Removed redundant import (DG); * 05-Aug-2002 : Small modification to drawCategoryItem method to support URLs * for HTML image maps (RA); * 26-Sep-2002 : Fixed errors reported by Checkstyle (DG); * 11-Oct-2002 : Added new constructor to incorporate tool tip and URL * generators (DG); * 24-Oct-2002 : Amendments for changes in CategoryDataset interface and * CategoryToolTipGenerator interface (DG); * 05-Nov-2002 : Base dataset is now TableDataset not CategoryDataset (DG); * 06-Nov-2002 : Renamed drawCategoryItem() --> drawItem() and now using axis * for category spacing (DG); * 17-Jan-2003 : Moved plot classes to a separate package (DG); * 10-Apr-2003 : Changed CategoryDataset to KeyedValues2DDataset in drawItem() * method (DG); * 12-May-2003 : Modified to take into account the plot orientation (DG); * 29-Jul-2003 : Amended code that doesn't compile with JDK 1.2.2 (DG); * 30-Jul-2003 : Modified entity constructor (CZ); * 22-Sep-2003 : Fixed cloning (DG); * 10-Feb-2004 : Small change to drawItem() method to make cut-and-paste * override easier (DG); * 16-Jun-2004 : Fixed bug (id=972454) with label positioning on horizontal * charts (DG); * 15-Oct-2004 : Updated equals() method (DG); * 05-Nov-2004 : Modified drawItem() signature (DG); * 11-Nov-2004 : Now uses ShapeUtilities class to translate shapes (DG); * 27-Jan-2005 : Changed attribute names, modified constructor and removed * constants (DG); * 01-Feb-2005 : Removed unnecessary constants (DG); * 15-Mar-2005 : Fixed bug 1163897, concerning outlines for shapes (DG); * 13-Apr-2005 : Check flags that control series visibility (DG); * 20-Apr-2005 : Use generators for legend labels, tooltips and URLs (DG); * 09-Jun-2005 : Use addItemEntity() method (DG); * ------------- JFREECHART 1.0.x --------------------------------------------- * 25-May-2006 : Added check to drawItem() to detect when both the line and * the shape are not visible (DG); * 20-Apr-2007 : Updated getLegendItem() for renderer change (DG); * 17-May-2007 : Set datasetIndex and seriesIndex in getLegendItem() (DG); * 18-May-2007 : Set dataset and seriesKey for LegendItem (DG); * 24-Sep-2007 : Deprecated redundant fields/methods (DG); * 27-Sep-2007 : Added option to offset series x-position within category (DG); * 17-Jun-2008 : Apply legend shape, font and paint attributes (DG); * 26-Jun-2008 : Added crosshair support (DG); * 14-Jan-2009 : Added support for seriesVisible flags (PK); * */ package org.jfree.chart.renderer.category; import java.awt.Graphics2D; import java.awt.Paint; import java.awt.Shape; import java.awt.Stroke; import java.awt.geom.Line2D; import java.awt.geom.Rectangle2D; import java.io.Serializable; import org.jfree.chart.LegendItem; 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.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.CategoryDataset; import org.jfree.util.BooleanList; import org.jfree.util.BooleanUtilities; import org.jfree.util.ObjectUtilities; import org.jfree.util.PublicCloneable; import org.jfree.util.ShapeUtilities; /** * A renderer that draws shapes for each data item, and lines between data * items (for use with the {@link CategoryPlot} class). * The example shown here is generated by the <code>LineChartDemo1.java</code> * program included in the JFreeChart Demo Collection: * <br><br> * <img src="../../../../../images/LineAndShapeRendererSample.png" * alt="LineAndShapeRendererSample.png"> */ public class LineAndShapeRenderer extends AbstractCategoryItemRenderer implements Cloneable, PublicCloneable, Serializable { /** For serialization. */ private static final long serialVersionUID = -197749519869226398L; /** * A flag that controls whether or not lines are visible for ALL series. * * @deprecated As of 1.0.7 (this override flag is unnecessary). */ private Boolean linesVisible; /** * A table of flags that control (per series) whether or not lines are * visible. */ private BooleanList seriesLinesVisible; /** * A flag indicating whether or not lines are drawn between non-null * points. */ private boolean baseLinesVisible; /** * A flag that controls whether or not shapes are visible for ALL series. * * @deprecated As of 1.0.7 (this override flag is unnecessary). */ 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 (this override flag is unnecessary). */ 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 the fill paint is used for filling * shapes. */ private boolean useFillPaint; /** A flag that controls whether outlines are drawn for shapes. */ private boolean drawOutlines; /** * A flag that controls whether the outline paint is used for drawing shape * outlines - if not, the regular series paint is used. */ private boolean useOutlinePaint; /** * A flag that controls whether or not the x-position for each item is * offset within the category according to the series. * * @since 1.0.7 */ private boolean useSeriesOffset; /** * The item margin used for series offsetting - this allows the positioning * to match the bar positions of the {@link BarRenderer} class. * * @since 1.0.7 */ private double itemMargin; /** * Creates a renderer with both lines and shapes visible by default. */ public LineAndShapeRenderer() { this(true, true); } /** * Creates a new renderer with lines and/or shapes visible. * * @param lines draw lines? * @param shapes draw shapes? */ public LineAndShapeRenderer(boolean lines, boolean shapes) { super(); this.linesVisible = null; this.seriesLinesVisible = new BooleanList(); this.baseLinesVisible = lines; this.shapesVisible = null; this.seriesShapesVisible = new BooleanList(); this.baseShapesVisible = shapes; this.shapesFilled = null; this.seriesShapesFilled = new BooleanList(); this.baseShapesFilled = true; this.useFillPaint = false; this.drawOutlines = true; this.useOutlinePaint = false; this.useSeriesOffset = false; // preserves old behaviour this.itemMargin = 0.0; } // LINES VISIBLE /** * Returns the flag used to control whether or not the line 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 (the override facility is unnecessary, just * use the per-series and base (default) 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 (the override facility is unnecessary, just * use the per-series and base (default) 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 (the override facility is unnecessary, just * use the per-series and base (default) settings). */ public void setLinesVisible(boolean visible) { setLinesVisible(BooleanUtilities.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, BooleanUtilities.valueOf(visible)); } /** * Returns the base 'lines visible' attribute. * * @return The base flag. * * @see #getBaseLinesVisible() */ 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(); } // SHAPES 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 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 (the override facility is unnecessary, just * use the per-series and base (default) 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 (the override facility is unnecessary, just * use the per-series and base (default) 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 (the override facility is unnecessary, just * use the per-series and base (default) settings). */ public void setShapesVisible(boolean visible) { setShapesVisible(BooleanUtilities.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, BooleanUtilities.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(); } /** * 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 the flag that controls whether the outline paint is used for * shape outlines. If not, the regular series paint is used. * * @return A boolean. * * @see #setUseOutlinePaint(boolean) */ public boolean getUseOutlinePaint() { return this.useOutlinePaint; } /** * Sets the flag that controls whether the outline paint is used for shape * outlines, and sends a {@link RendererChangeEvent} to all registered * listeners. * * @param use the flag. * * @see #getUseOutlinePaint() */ public void setUseOutlinePaint(boolean use) { this.useOutlinePaint = use; fireChangeEvent(); } // SHAPES FILLED /** * Returns the flag used to control whether or not the shape for an item * is filled. 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) { return getSeriesShapesFilled(series); } /** * 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. */ public boolean getSeriesShapesFilled(int series) { // return the overall setting, if there is one... if (this.shapesFilled != null) { return this.shapesFilled.booleanValue(); } // otherwise look up the paint table Boolean flag = this.seriesShapesFilled.getBoolean(series); if (flag != null) { return flag.booleanValue(); } else { return this.baseShapesFilled; } } /** * Returns the flag that controls whether or not shapes are filled for * ALL series. * * @return A Boolean. * * @see #setShapesFilled(Boolean) * * @deprecated As of 1.0.7 (the override facility is unnecessary, just * use the per-series and base (default) settings). */ public Boolean getShapesFilled() { return this.shapesFilled; } /** * Sets the 'shapes filled' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param filled the flag. * * @see #getShapesFilled() * * @deprecated As of 1.0.7 (the override facility is unnecessary, just * use the per-series and base (default) settings). */ public void setShapesFilled(boolean filled) { if (filled) { setShapesFilled(Boolean.TRUE); } else { setShapesFilled(Boolean.FALSE); } } /** * Sets the 'shapes filled' for ALL series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param filled the flag (<code>null</code> permitted). * * @see #getShapesFilled() * * @deprecated As of 1.0.7 (the override facility is unnecessary, just * use the per-series and base (default) settings). */ public void setShapesFilled(Boolean filled) { this.shapesFilled = filled; fireChangeEvent(); } /** * 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 filled the flag. * * @see #getSeriesShapesFilled(int) */ public void setSeriesShapesFilled(int series, Boolean filled) { this.seriesShapesFilled.setBoolean(series, filled); fireChangeEvent(); } /** * 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 filled the flag. * * @see #getSeriesShapesFilled(int) */ public void setSeriesShapesFilled(int series, boolean filled) { // delegate setSeriesShapesFilled(series, BooleanUtilities.valueOf(filled)); } /** * 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 the renderer should use the fill paint * setting to fill shapes, and <code>false</code> if it should just * use the regular paint. * * @return A boolean. * * @see #setUseFillPaint(boolean) */ 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 the flag that controls whether or not the x-position for each * data item is offset within the category according to the series. * * @return A boolean. * * @see #setUseSeriesOffset(boolean) * * @since 1.0.7 */ public boolean getUseSeriesOffset() { return this.useSeriesOffset; } /** * Sets the flag that controls whether or not the x-position for each * data item is offset within its category according to the series, and * sends a {@link RendererChangeEvent} to all registered listeners. * * @param offset the offset. * * @see #getUseSeriesOffset() * * @since 1.0.7 */ public void setUseSeriesOffset(boolean offset) { this.useSeriesOffset = offset; fireChangeEvent(); } /** * Returns the item margin, which is the gap between items within a * category (expressed as a percentage of the overall category width). * This can be used to match the offset alignment with the bars drawn by * a {@link BarRenderer}). * * @return The item margin. * * @see #setItemMargin(double) * @see #getUseSeriesOffset() * * @since 1.0.7 */ public double getItemMargin() { return this.itemMargin; } /** * Sets the item margin, which is the gap between items within a category * (expressed as a percentage of the overall category width), and sends * a {@link RendererChangeEvent} to all registered listeners. * * @param margin the margin (0.0 <= margin < 1.0). * * @see #getItemMargin() * @see #getUseSeriesOffset() * * @since 1.0.7 */ public void setItemMargin(double margin) { if (margin < 0.0 || margin >= 1.0) { throw new IllegalArgumentException("Requires 0.0 <= margin < 1.0."); } this.itemMargin = margin; fireChangeEvent(); } /** * Returns a legend item for a series. * * @param datasetIndex the dataset index (zero-based). * @param series the series index (zero-based). * * @return The legend item. */ @Override public LegendItem getLegendItem(int datasetIndex, int series) { CategoryPlot cp = getPlot(); if (cp == null) { return null; } if (isSeriesVisible(series) && isSeriesVisibleInLegend(series)) { CategoryDataset dataset = cp.getDataset(datasetIndex); 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); } Shape shape = lookupLegendShape(series); Paint paint = lookupSeriesPaint(series); Paint fillPaint = (this.useFillPaint ? getItemFillPaint(series, 0) : paint); boolean shapeOutlineVisible = this.drawOutlines; Paint outlinePaint = (this.useOutlinePaint ? getItemOutlinePaint(series, 0) : paint); Stroke outlineStroke = lookupSeriesOutlineStroke(series); boolean lineVisible = getItemLineVisible(series, 0); boolean shapeVisible = getItemShapeVisible(series, 0); LegendItem result = new LegendItem(label, description, toolTipText, urlText, shapeVisible, shape, getItemShapeFilled(series, 0), fillPaint, shapeOutlineVisible, outlinePaint, outlineStroke, lineVisible, new Line2D.Double(-7.0, 0.0, 7.0, 0.0), getItemStroke(series, 0), getItemPaint(series, 0)); result.setLabelFont(lookupLegendTextFont(series)); Paint labelPaint = lookupLegendTextPaint(series); if (labelPaint != null) { result.setLabelPaint(labelPaint); } result.setDataset(dataset); result.setDatasetIndex(datasetIndex); result.setSeriesKey(dataset.getRowKey(series)); result.setSeriesIndex(series); return result; } return null; } /** * This renderer uses two passes to draw the data. * * @return The pass count (<code>2</code> for this renderer). */ @Override public int getPassCount() { return 2; } /** * Draw a single data item. * * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area in which the data is drawn. * @param plot the plot. * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param dataset the dataset. * @param row the row index (zero-based). * @param column the column index (zero-based). * @param pass the pass index. */ @Override public void drawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass) { // do nothing if item is not visible if (!getItemVisible(row, column)) { return; } // do nothing if both the line and shape are not visible if (!getItemLineVisible(row, column) && !getItemShapeVisible(row, column)) { return; } // nothing is drawn for null... Number v = dataset.getValue(row, column); if (v == null) { return; } int visibleRow = state.getVisibleSeriesIndex(row); if (visibleRow < 0) { return; } int visibleRowCount = state.getVisibleSeriesCount(); PlotOrientation orientation = plot.getOrientation(); // current data point... double x1; if (this.useSeriesOffset) { x1 = domainAxis.getCategorySeriesMiddle(column, dataset.getColumnCount(), visibleRow, visibleRowCount, this.itemMargin, dataArea, plot.getDomainAxisEdge()); } else { x1 = domainAxis.getCategoryMiddle(column, getColumnCount(), dataArea, plot.getDomainAxisEdge()); } double value = v.doubleValue(); double y1 = rangeAxis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge()); if (pass == 0 && getItemLineVisible(row, column)) { if (column != 0) { Number previousValue = dataset.getValue(row, column - 1); if (previousValue != null) { // previous data point... double previous = previousValue.doubleValue(); double x0; if (this.useSeriesOffset) { x0 = domainAxis.getCategorySeriesMiddle(column - 1, dataset.getColumnCount(), visibleRow, visibleRowCount, this.itemMargin, dataArea, plot.getDomainAxisEdge()); } else { x0 = domainAxis.getCategoryMiddle(column - 1, getColumnCount(), dataArea, plot.getDomainAxisEdge()); } double y0 = rangeAxis.valueToJava2D(previous, dataArea, plot.getRangeAxisEdge()); Line2D line = null; if (orientation == PlotOrientation.HORIZONTAL) { line = new Line2D.Double(y0, x0, y1, x1); } else if (orientation == PlotOrientation.VERTICAL) { line = new Line2D.Double(x0, y0, x1, y1); } g2.setPaint(getItemPaint(row, column)); g2.setStroke(getItemStroke(row, column)); g2.draw(line); } } } if (pass == 1) { Shape shape = getItemShape(row, column); if (orientation == PlotOrientation.HORIZONTAL) { shape = ShapeUtilities.createTranslatedShape(shape, y1, x1); } else if (orientation == PlotOrientation.VERTICAL) { shape = ShapeUtilities.createTranslatedShape(shape, x1, y1); } if (getItemShapeVisible(row, column)) { if (getItemShapeFilled(row, column)) { if (this.useFillPaint) { g2.setPaint(getItemFillPaint(row, column)); } else { g2.setPaint(getItemPaint(row, column)); } g2.fill(shape); } if (this.drawOutlines) { if (this.useOutlinePaint) { g2.setPaint(getItemOutlinePaint(row, column)); } else { g2.setPaint(getItemPaint(row, column)); } g2.setStroke(getItemOutlineStroke(row, column)); g2.draw(shape); } } // draw the item label if there is one... if (isItemLabelVisible(row, column)) { if (orientation == PlotOrientation.HORIZONTAL) { drawItemLabel(g2, orientation, dataset, row, column, y1, x1, (value < 0.0)); } else if (orientation == PlotOrientation.VERTICAL) { drawItemLabel(g2, orientation, dataset, row, column, x1, y1, (value < 0.0)); } } // submit the current data point as a crosshair candidate int datasetIndex = plot.indexOf(dataset); updateCrosshairValues(state.getCrosshairState(), dataset.getRowKey(row), dataset.getColumnKey(column), value, datasetIndex, x1, y1, orientation); // add an item entity, if this information is being collected EntityCollection entities = state.getEntityCollection(); if (entities != null) { addItemEntity(entities, dataset, row, column, shape); } } } /** * Tests this renderer for equality with an arbitrary object. * * @param obj the object (<code>null</code> permitted). * * @return A boolean. */ @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof LineAndShapeRenderer)) { return false; } LineAndShapeRenderer that = (LineAndShapeRenderer) obj; if (this.baseLinesVisible != that.baseLinesVisible) { return false; } if (!ObjectUtilities.equal(this.seriesLinesVisible, that.seriesLinesVisible)) { return false; } if (!ObjectUtilities.equal(this.linesVisible, that.linesVisible)) { return false; } if (this.baseShapesVisible != that.baseShapesVisible) { return false; } if (!ObjectUtilities.equal(this.seriesShapesVisible, that.seriesShapesVisible)) { return false; } if (!ObjectUtilities.equal(this.shapesVisible, that.shapesVisible)) { 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.useOutlinePaint != that.useOutlinePaint) { return false; } if (this.useSeriesOffset != that.useSeriesOffset) { return false; } if (this.itemMargin != that.itemMargin) { return false; } return super.equals(obj); } /** * Returns an independent copy of the renderer. * * @return A clone. * * @throws CloneNotSupportedException should not happen. */ @Override public Object clone() throws CloneNotSupportedException { LineAndShapeRenderer clone = (LineAndShapeRenderer) super.clone(); clone.seriesLinesVisible = (BooleanList) this.seriesLinesVisible.clone(); clone.seriesShapesVisible = (BooleanList) this.seriesShapesVisible.clone(); clone.seriesShapesFilled = (BooleanList) this.seriesShapesFilled.clone(); return clone; } }