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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.

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/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2020, 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.]
 *
 * -------------------
 * XYItemRenderer.java
 * -------------------
 * (C) Copyright 2001-2020, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   Mark Watson (www.markwatson.com);
 *                   Sylvain Vieujot;
 *                   Focus Computer Services Limited;
 *                   Richard Atkinson;
 *
 */

package org.jfree.chart.renderer.xy;

import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.geom.Rectangle2D;

import org.jfree.chart.LegendItem;
import org.jfree.chart.LegendItemSource;
import org.jfree.chart.annotations.XYAnnotation;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.event.RendererChangeEvent;
import org.jfree.chart.event.RendererChangeListener;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.XYItemLabelGenerator;
import org.jfree.chart.labels.XYSeriesLabelGenerator;
import org.jfree.chart.labels.XYToolTipGenerator;
import org.jfree.chart.plot.CrosshairState;
import org.jfree.chart.plot.Marker;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.ui.Layer;
import org.jfree.chart.urls.XYURLGenerator;
import org.jfree.data.Range;
import org.jfree.data.xy.XYDataset;

/**
 * Interface for rendering the visual representation of a single (x, y) item on
 * an {@link XYPlot}.
 * 

* To support cloning charts, it is recommended that renderers implement both * the {@link Cloneable} and {@code PublicCloneable} interfaces. */ public interface XYItemRenderer extends LegendItemSource { /** * Returns the plot that this renderer has been assigned to. * * @return The plot. */ public XYPlot getPlot(); /** * Sets the plot that this renderer is assigned to. This method will be * called by the plot class...you do not need to call it yourself. * * @param plot the plot. */ public void setPlot(XYPlot plot); /** * Returns the number of passes through the data required by the renderer. * * @return The pass count. */ public int getPassCount(); /** * Returns the lower and upper bounds (range) of the x-values in the * specified dataset. * * @param dataset the dataset ({@code null} permitted). * * @return The range. */ public Range findDomainBounds(XYDataset dataset); /** * Returns the lower and upper bounds (range) of the y-values in the * specified dataset. The implementation of this method will take * into account the presentation used by the renderers (for example, * a renderer that "stacks" values will return a bigger range than * a renderer that doesn't). * * @param dataset the dataset ({@code null} permitted). * * @return The range (or {@code null} if the dataset is * {@code null} or empty). */ public Range findRangeBounds(XYDataset dataset); /** * Add a renderer change listener. * * @param listener the listener. * * @see #removeChangeListener(RendererChangeListener) */ public void addChangeListener(RendererChangeListener listener); /** * Removes a change listener. * * @param listener the listener. * * @see #addChangeListener(RendererChangeListener) */ public void removeChangeListener(RendererChangeListener listener); //// VISIBLE ////////////////////////////////////////////////////////////// /** * Returns a boolean that indicates whether or not the specified item * should be drawn (this is typically used to hide an entire series). * * @param series the series index. * @param item the item index. * * @return A boolean. */ public boolean getItemVisible(int series, int item); /** * Returns a boolean that indicates whether or not the specified series * should be drawn (this is typically used to hide an entire series). * * @param series the series index. * * @return A boolean. */ public boolean isSeriesVisible(int series); /** * Returns the flag that controls whether a series is visible. * * @param series the series index (zero-based). * * @return The flag (possibly {@code null}). * * @see #setSeriesVisible(int, Boolean) */ public Boolean getSeriesVisible(int series); /** * Sets the flag that controls whether a series is visible and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param visible the flag ({@code null} permitted). * * @see #getSeriesVisible(int) */ public void setSeriesVisible(int series, Boolean visible); /** * Sets the flag that controls whether a series is visible and, if * requested, sends a {@link RendererChangeEvent} to all registered * listeners. * * @param series the series index. * @param visible the flag ({@code null} permitted). * @param notify notify listeners? * * @see #getSeriesVisible(int) */ public void setSeriesVisible(int series, Boolean visible, boolean notify); /** * Returns the default visibility for all series. * * @return The default visibility. * * @see #setDefaultSeriesVisible(boolean) */ public boolean getDefaultSeriesVisible(); /** * Sets the default visibility and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param visible the flag. * * @see #getDefaultSeriesVisible() */ public void setDefaultSeriesVisible(boolean visible); /** * Sets the default visibility and, if requested, sends * a {@link RendererChangeEvent} to all registered listeners. * * @param visible the visibility. * @param notify notify listeners? * * @see #getDefaultSeriesVisible() */ public void setDefaultSeriesVisible(boolean visible, boolean notify); // SERIES VISIBLE IN LEGEND (not yet respected by all renderers) /** * Returns {@code true} if the series should be shown in the legend, * and {@code false} otherwise. * * @param series the series index. * * @return A boolean. */ public boolean isSeriesVisibleInLegend(int series); /** * Returns the flag that controls whether a series is visible in the * legend. This method returns only the "per series" settings - to * incorporate the override and base settings as well, you need to use the * {@link #isSeriesVisibleInLegend(int)} method. * * @param series the series index (zero-based). * * @return The flag (possibly {@code null}). * * @see #setSeriesVisibleInLegend(int, Boolean) */ public Boolean getSeriesVisibleInLegend(int series); /** * Sets the flag that controls whether a series is visible in the legend * and sends a {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param visible the flag ({@code null} permitted). * * @see #getSeriesVisibleInLegend(int) */ public void setSeriesVisibleInLegend(int series, Boolean visible); /** * Sets the flag that controls whether a series is visible in the legend * and, if requested, sends a {@link RendererChangeEvent} to all registered * listeners. * * @param series the series index. * @param visible the flag ({@code null} permitted). * @param notify notify listeners? * * @see #getSeriesVisibleInLegend(int) */ public void setSeriesVisibleInLegend(int series, Boolean visible, boolean notify); /** * Returns the default visibility in the legend for all series. * * @return The default visibility. * * @see #setDefaultSeriesVisibleInLegend(boolean) */ public boolean getDefaultSeriesVisibleInLegend(); /** * Sets the default visibility in the legend and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param visible the flag. * * @see #getDefaultSeriesVisibleInLegend() */ public void setDefaultSeriesVisibleInLegend(boolean visible); /** * Sets the default visibility in the legend and, if requested, sends * a {@link RendererChangeEvent} to all registered listeners. * * @param visible the visibility. * @param notify notify listeners? * * @see #getDefaultSeriesVisibleInLegend() */ public void setDefaultSeriesVisibleInLegend(boolean visible, boolean notify); //// PAINT //////////////////////////////////////////////////////////////// /** * Returns the paint used to color data items as they are drawn. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The paint (never {@code null}). */ public Paint getItemPaint(int row, int column); /** * Returns the paint used to color an item drawn by the renderer. * * @param series the series index (zero-based). * * @return The paint (possibly {@code null}). * * @see #setSeriesPaint(int, Paint) */ public Paint getSeriesPaint(int series); /** * Sets the paint used for a series and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). * * @see #getSeriesPaint(int) */ public void setSeriesPaint(int series, Paint paint); /** * Sets the paint used for a series and sends a {@link RendererChangeEvent} * to all registered listeners if requested. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). * @param notify send a change event? * * @see #getSeriesPaint(int) */ public void setSeriesPaint(int series, Paint paint, boolean notify); /** * Returns the default paint. * * @return The default paint (never {@code null}). * * @see #setDefaultPaint(Paint) */ public Paint getDefaultPaint(); /** * Sets the default paint and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param paint the paint ({@code null} not permitted). * * @see #getDefaultPaint() */ public void setDefaultPaint(Paint paint); /** * Sets the default paint and sends a {@link RendererChangeEvent} to all * registered listeners if requested. * * @param paint the paint ({@code null} not permitted). * @param notify send a change event? * * @see #getDefaultPaint() */ public void setDefaultPaint(Paint paint, boolean notify); // FILL PAINT /** * Returns the paint used to fill data items as they are drawn. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The paint (never {@code null}). */ public Paint getItemFillPaint(int row, int column); /** * Returns the paint used to fill an item drawn by the renderer. * * @param series the series index (zero-based). * * @return The paint (possibly {@code null}). */ public Paint getSeriesFillPaint(int series); /** * Sets the paint used for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). */ public void setSeriesFillPaint(int series, Paint paint); /** * Sets the paint used for a series and sends a * {@link RendererChangeEvent} to all registered listeners if requested. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). * @param notify send a change event? */ public void setSeriesFillPaint(int series, Paint paint, boolean notify); /** * Returns the default paint. * * @return The default paint (never {@code null}). */ public Paint getDefaultFillPaint(); /** * Sets the default paint and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param paint the paint ({@code null} not permitted). */ public void setDefaultFillPaint(Paint paint); /** * Sets the default paint and sends a {@link RendererChangeEvent} to all * registered listeners if requested. * * @param paint the paint ({@code null} not permitted). * @param notify send a change event? */ public void setDefaultFillPaint(Paint paint, boolean notify); //// OUTLINE PAINT //////////////////////////////////////////////////////// /** * Returns the paint used to outline data items as they are drawn. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The paint (never {@code null}). */ public Paint getItemOutlinePaint(int row, int column); /** * Returns the paint used to outline an item drawn by the renderer. * * @param series the series (zero-based index). * * @return The paint (possibly {@code null}). * * @see #setSeriesOutlinePaint(int, Paint) */ public Paint getSeriesOutlinePaint(int series); /** * Sets the paint used for a series outline and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). * * @see #getSeriesOutlinePaint(int) */ public void setSeriesOutlinePaint(int series, Paint paint); /** * Sets the paint used for a series outline and sends a * {@link RendererChangeEvent} to all registered listeners if requested. * * @param series the series index (zero-based). * @param paint the paint ({@code null} permitted). * @param notify send a change event? * * @see #getSeriesOutlinePaint(int) */ public void setSeriesOutlinePaint(int series, Paint paint, boolean notify); /** * Returns the default outline paint. * * @return The paint (never {@code null}). * * @see #setDefaultOutlinePaint(Paint) */ public Paint getDefaultOutlinePaint(); /** * Sets the default outline paint and sends a {@link RendererChangeEvent} to * all registered listeners. * * @param paint the paint ({@code null} not permitted). * * @see #getDefaultOutlinePaint() */ public void setDefaultOutlinePaint(Paint paint); /** * Sets the default outline paint and sends a {@link RendererChangeEvent} to * all registered listeners if requested. * * @param paint the paint ({@code null} not permitted). * @param notify send a change event? * * @see #getDefaultOutlinePaint() */ public void setDefaultOutlinePaint(Paint paint, boolean notify); //// STROKE /////////////////////////////////////////////////////////////// /** * Returns the stroke used to draw data items. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The stroke (never {@code null}). */ public Stroke getItemStroke(int row, int column); /** * Returns the stroke used to draw the items in a series. * * @param series the series (zero-based index). * * @return The stroke (possibly {@code null}). * * @see #setSeriesStroke(int, Stroke) */ public Stroke getSeriesStroke(int series); /** * Sets the stroke used for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param stroke the stroke ({@code null} permitted). * * @see #getSeriesStroke(int) */ public void setSeriesStroke(int series, Stroke stroke); /** * Sets the stroke used for a series and sends a * {@link RendererChangeEvent} to all registered listeners if requested. * * @param series the series index (zero-based). * @param stroke the stroke ({@code null} permitted). * @param notify send a change event? * * @see #getSeriesStroke(int) */ public void setSeriesStroke(int series, Stroke stroke, boolean notify); /** * Returns the default stroke. * * @return The default stroke (never {@code null}). * * @see #setDefaultStroke(Stroke) */ public Stroke getDefaultStroke(); /** * Sets the default stroke and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param stroke the stroke ({@code null} not permitted). * * @see #getDefaultStroke() */ public void setDefaultStroke(Stroke stroke); /** * Sets the default stroke and sends a {@link RendererChangeEvent} to all * registered listeners if requested. * * @param stroke the stroke ({@code null} not permitted). * @param notify send a change event? * * @see #getDefaultStroke() */ public void setDefaultStroke(Stroke stroke, boolean notify); //// OUTLINE STROKE /////////////////////////////////////////////////////// /** * Returns the stroke used to outline data items. The default * implementation passes control to the lookupSeriesOutlineStroke method. * You can override this method if you require different behaviour. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The stroke (never {@code null}). */ public Stroke getItemOutlineStroke(int row, int column); /** * Returns the stroke used to outline the items in a series. * * @param series the series (zero-based index). * * @return The stroke (possibly {@code null}). * * @see #setSeriesOutlineStroke(int, Stroke) */ public Stroke getSeriesOutlineStroke(int series); /** * Sets the outline stroke used for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param stroke the stroke ({@code null} permitted). * * @see #getSeriesOutlineStroke(int) */ public void setSeriesOutlineStroke(int series, Stroke stroke); /** * Sets the outline stroke used for a series and sends a * {@link RendererChangeEvent} to all registered listeners if requested. * * @param series the series index (zero-based). * @param stroke the stroke ({@code null} permitted). * @param notify send a change event? * * @see #getSeriesOutlineStroke(int) */ public void setSeriesOutlineStroke(int series, Stroke stroke, boolean notify); /** * Returns the default outline stroke. * * @return The stroke (never {@code null}). * * @see #setDefaultOutlineStroke(Stroke) */ public Stroke getDefaultOutlineStroke(); /** * Sets the base outline stroke and sends a {@link RendererChangeEvent} to * all registered listeners. * * @param stroke the stroke ({@code null} not permitted). * * @see #getDefaultOutlineStroke() */ public void setDefaultOutlineStroke(Stroke stroke); /** * Sets the base outline stroke and sends a {@link RendererChangeEvent} to * all registered listeners if requested. * * @param stroke the stroke ({@code null} not permitted). * @param notify send a change event. * * @see #getDefaultOutlineStroke() */ public void setDefaultOutlineStroke(Stroke stroke, boolean notify); //// SHAPE //////////////////////////////////////////////////////////////// /** * Returns a shape used to represent a data item. * * @param row the row (or series) index (zero-based). * @param column the column (or category) index (zero-based). * * @return The shape (never {@code null}). */ public Shape getItemShape(int row, int column); /** * Returns a shape used to represent the items in a series. * * @param series the series (zero-based index). * * @return The shape (possibly {@code null}). * * @see #setSeriesShape(int, Shape) */ public Shape getSeriesShape(int series); /** * Sets the shape used for a series and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param series the series index (zero-based). * @param shape the shape ({@code null} permitted). * * @see #getSeriesShape(int) */ public void setSeriesShape(int series, Shape shape); /** * Sets the shape used for a series and sends a {@link RendererChangeEvent} * to all registered listeners if requested. * * @param series the series index (zero-based). * @param shape the shape ({@code null} permitted). * @param notify send a change event? * * @see #getSeriesShape(int) */ public void setSeriesShape(int series, Shape shape, boolean notify); /** * Returns the default shape. * * @return The shape (never {@code null}). * * @see #setDefaultShape(Shape) */ public Shape getDefaultShape(); /** * Sets the default shape and sends a {@link RendererChangeEvent} to all * registered listeners. * * @param shape the shape ({@code null} not permitted). * * @see #getDefaultShape() */ public void setDefaultShape(Shape shape); /** * Sets the default shape and sends a {@link RendererChangeEvent} to all * registered listeners if requested. * * @param shape the shape ({@code null} not permitted). * @param notify send a change event? * * @see #getDefaultShape() */ public void setDefaultShape(Shape shape, boolean notify); //// LEGEND ITEMS ///////////////////////////////////////////////////////// /** * Returns a legend item for a series from a dataset. * * @param datasetIndex the dataset index. * @param series the series (zero-based index). * * @return The legend item (possibly {@code null}). */ public LegendItem getLegendItem(int datasetIndex, int series); //// LEGEND ITEM LABEL GENERATOR ////////////////////////////////////////// /** * Returns the legend item label generator. * * @return The legend item label generator (never {@code null}). * * @see #setLegendItemLabelGenerator(XYSeriesLabelGenerator) */ public XYSeriesLabelGenerator getLegendItemLabelGenerator(); /** * Sets the legend item label generator and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param generator the generator ({@code null} not permitted). */ public void setLegendItemLabelGenerator(XYSeriesLabelGenerator generator); //// TOOL TIP GENERATOR /////////////////////////////////////////////////// /** * Returns the tool tip generator for a data item. * * @param row the row index (zero based). * @param column the column index (zero based). * * @return The generator (possibly {@code null}). */ public XYToolTipGenerator getToolTipGenerator(int row, int column); /** * Returns the tool tip generator for a series. * * @param series the series index (zero based). * * @return The generator (possibly {@code null}). * * @see #setSeriesToolTipGenerator(int, XYToolTipGenerator) */ public XYToolTipGenerator getSeriesToolTipGenerator(int series); /** * Sets the tool tip generator for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero based). * @param generator the generator ({@code null} permitted). * * @see #getSeriesToolTipGenerator(int) */ public void setSeriesToolTipGenerator(int series, XYToolTipGenerator generator); /** * Returns the default tool tip generator. * * @return The generator (possibly {@code null}). * * @see #setDefaultToolTipGenerator(XYToolTipGenerator) */ public XYToolTipGenerator getDefaultToolTipGenerator(); /** * Sets the default tool tip generator and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param generator the generator ({@code null} permitted). * * @see #getDefaultToolTipGenerator() */ public void setDefaultToolTipGenerator(XYToolTipGenerator generator); //// URL GENERATOR //////////////////////////////////////////////////////// /** * Returns the URL generator for HTML image maps. * * @return The URL generator (possibly null). */ public XYURLGenerator getURLGenerator(); /** * Sets the URL generator for HTML image maps. * * @param urlGenerator the URL generator (null permitted). */ public void setURLGenerator(XYURLGenerator urlGenerator); //// ITEM LABELS VISIBLE ////////////////////////////////////////////////// /** * Returns {@code true} if an item label is visible, and * {@code false} otherwise. * * @param row the row index (zero-based). * @param column the column index (zero-based). * * @return A boolean. */ public boolean isItemLabelVisible(int row, int column); /** * Returns {@code true} if the item labels for a series are visible, * and {@code false} otherwise. * * @param series the series index (zero-based). * * @return A boolean. */ public boolean isSeriesItemLabelsVisible(int series); /** * Sets a flag that controls the visibility of the item labels for a * series and sends a {@link RendererChangeEvent} to all registered * listeners. * * @param series the series index (zero-based). * @param visible the flag. * * @see #isSeriesItemLabelsVisible(int) */ public void setSeriesItemLabelsVisible(int series, boolean visible); /** * Sets a flag that controls the visibility of the item labels for a series. * * @param series the series index (zero-based). * @param visible the flag ({@code null} permitted). * * @see #isSeriesItemLabelsVisible(int) */ public void setSeriesItemLabelsVisible(int series, Boolean visible); /** * Sets the visibility of item labels for a series and, if requested, * sends a {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param visible the visible flag. * @param notify a flag that controls whether or not listeners are * notified. * * @see #isSeriesItemLabelsVisible(int) */ public void setSeriesItemLabelsVisible(int series, Boolean visible, boolean notify); /** * Returns the default setting for item label visibility. * * @return A flag (possibly {@code null}). * * @see #setDefaultItemLabelsVisible(boolean) */ public boolean getDefaultItemLabelsVisible(); /** * Sets the default flag that controls whether or not item labels are visible. * * @param visible the flag. * * @see #getDefaultItemLabelsVisible() */ public void setDefaultItemLabelsVisible(boolean visible); /** * Sets the default visibility for item labels and, if requested, sends a * {@link RendererChangeEvent} to all registered listeners. * * @param visible the visibility flag. * @param notify a flag that controls whether or not listeners are * notified. * * @see #getDefaultItemLabelsVisible() */ public void setDefaultItemLabelsVisible(boolean visible, boolean notify); //// ITEM LABEL GENERATOR ///////////////////////////////////////////////// /** * Returns the item label generator for a data item. * * @param row the row index (zero based). * @param column the column index (zero based). * * @return The generator (possibly {@code null}). */ public XYItemLabelGenerator getItemLabelGenerator(int row, int column); /** * Returns the item label generator for a series. * * @param series the series index (zero based). * * @return The generator (possibly {@code null}). * * @see #setSeriesItemLabelGenerator(int, XYItemLabelGenerator) */ public XYItemLabelGenerator getSeriesItemLabelGenerator(int series); /** * Sets the item label generator for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero based). * @param generator the generator ({@code null} permitted). * * @see #getSeriesItemLabelGenerator(int) */ public void setSeriesItemLabelGenerator(int series, XYItemLabelGenerator generator); /** * Returns the default item label generator. * * @return The generator (possibly {@code null}). * * @see #setDefaultItemLabelGenerator(XYItemLabelGenerator) */ public XYItemLabelGenerator getDefaultItemLabelGenerator(); /** * Sets the default item label generator and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param generator the generator ({@code null} permitted). * * @see #getDefaultItemLabelGenerator() */ public void setDefaultItemLabelGenerator(XYItemLabelGenerator generator); //// ITEM LABEL FONT /////////////////////////////////////////////////////// /** * Returns the font for an item label. * * @param row the row index (zero-based). * @param column the column index (zero-based). * * @return The font (never {@code null}). */ public Font getItemLabelFont(int row, int column); /** * Returns the font for all the item labels in a series. * * @param series the series index (zero-based). * * @return The font (possibly {@code null}). */ public Font getSeriesItemLabelFont(int series); /** * Sets the item label font for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param font the font ({@code null} permitted). * * @see #getSeriesItemLabelFont(int) */ public void setSeriesItemLabelFont(int series, Font font); /** * Returns the default item label font (this is used when no other font * setting is available). * * @return The font (never {@code null}). * * @see #setDefaultItemLabelFont(Font) */ public Font getDefaultItemLabelFont(); /** * Sets the default item label font and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param font the font ({@code null} not permitted). * * @see #getDefaultItemLabelFont() */ public void setDefaultItemLabelFont(Font font); //// ITEM LABEL PAINT ///////////////////////////////////////////////////// /** * Returns the paint used to draw an item label. * * @param row the row index (zero based). * @param column the column index (zero based). * * @return The paint (never {@code null}). */ public Paint getItemLabelPaint(int row, int column); /** * Returns the paint used to draw the item labels for a series. * * @param series the series index (zero based). * * @return The paint (possibly {@code null}). * * @see #setSeriesItemLabelPaint(int, Paint) */ public Paint getSeriesItemLabelPaint(int series); /** * Sets the item label paint for a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series (zero based index). * @param paint the paint ({@code null} permitted). * * @see #getSeriesItemLabelPaint(int) */ public void setSeriesItemLabelPaint(int series, Paint paint); /** * Returns the default item label paint. * * @return The paint (never {@code null}). */ public Paint getDefaultItemLabelPaint(); /** * Sets the default item label paint and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param paint the paint ({@code null} not permitted). */ public void setDefaultItemLabelPaint(Paint paint); // POSITIVE ITEM LABEL POSITION... /** * Returns the item label position for positive values. * * @param row the row index (zero-based). * @param column the column index (zero-based). * * @return The item label position (never {@code null}). */ public ItemLabelPosition getPositiveItemLabelPosition(int row, int column); /** * Returns the item label position for all positive values in a series. * * @param series the series index (zero-based). * * @return The item label position (never {@code null}). */ public ItemLabelPosition getSeriesPositiveItemLabelPosition(int series); /** * Sets the item label position for all positive values in a series and * sends a {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param position the position ({@code null} permitted). */ public void setSeriesPositiveItemLabelPosition(int series, ItemLabelPosition position); /** * Sets the item label position for all positive values in a series and (if * requested) sends a {@link RendererChangeEvent} to all registered * listeners. * * @param series the series index (zero-based). * @param position the position ({@code null} permitted). * @param notify notify registered listeners? */ public void setSeriesPositiveItemLabelPosition(int series, ItemLabelPosition position, boolean notify); /** * Returns the default positive item label position. * * @return The position (never {@code null}). */ public ItemLabelPosition getDefaultPositiveItemLabelPosition(); /** * Sets the default positive item label position. * * @param position the position ({@code null} not permitted). */ public void setDefaultPositiveItemLabelPosition(ItemLabelPosition position); /** * Sets the default positive item label position and, if requested, sends a * {@link RendererChangeEvent} to all registered listeners. * * @param position the position ({@code null} not permitted). * @param notify notify registered listeners? */ public void setDefaultPositiveItemLabelPosition(ItemLabelPosition position, boolean notify); // NEGATIVE ITEM LABEL POSITION... /** * Returns the item label position for negative values. This method can be * overridden to provide customisation of the item label position for * individual data items. * * @param row the row index (zero-based). * @param column the column (zero-based). * * @return The item label position (never {@code null}). */ public ItemLabelPosition getNegativeItemLabelPosition(int row, int column); /** * Returns the item label position for all negative values in a series. * * @param series the series index (zero-based). * * @return The item label position (never {@code null}). */ public ItemLabelPosition getSeriesNegativeItemLabelPosition(int series); /** * Sets the item label position for negative values in a series and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param series the series index (zero-based). * @param position the position ({@code null} permitted). */ public void setSeriesNegativeItemLabelPosition(int series, ItemLabelPosition position); /** * Sets the item label position for negative values in a series and (if * requested) sends a {@link RendererChangeEvent} to all registered * listeners. * * @param series the series index (zero-based). * @param position the position ({@code null} permitted). * @param notify notify registered listeners? */ public void setSeriesNegativeItemLabelPosition(int series, ItemLabelPosition position, boolean notify); /** * Returns the default item label position for negative values. * * @return The position (never {@code null}). */ public ItemLabelPosition getDefaultNegativeItemLabelPosition(); /** * Sets the default item label position for negative values and sends a * {@link RendererChangeEvent} to all registered listeners. * * @param position the position ({@code null} not permitted). */ public void setDefaultNegativeItemLabelPosition(ItemLabelPosition position); /** * Sets the default negative item label position and, if requested, sends a * {@link RendererChangeEvent} to all registered listeners. * * @param position the position ({@code null} not permitted). * @param notify notify registered listeners? */ public void setDefaultNegativeItemLabelPosition(ItemLabelPosition position, boolean notify); // CREATE ENTITIES /** * Returns {@code true} if an entity should be created for an item, and * {@code false} otherwise. * * @param series the series. * @param item the item. * * @return A boolean. */ public boolean getItemCreateEntity(int series, int item); /** * Returns {@code true} if entities should be created for a series, and * {@code false} otherwise. This method can return {@code null} in which * case the renderering framework will look at the default setting. * * @param series the series. * * @return A boolean. */ public Boolean getSeriesCreateEntities(int series); /** * Sets a flag that specifies whether or not entities should be created for * a series during rendering, and sends a change event to registered * listeners. * * @param series the series. * @param create the flag value ({@code null} permitted). */ public void setSeriesCreateEntities(int series, Boolean create); /** * Sets a flag that specifies whether or not entities should be created for * a series during rendering, and sends a change event to registered * listeners. * * @param series the series. * @param create the flag value ({@code null} permitted). * @param notify send a change event? */ public void setSeriesCreateEntities(int series, Boolean create, boolean notify); /** * Returns the default value determining whether or not entities should be * created by the renderer. * * @return A boolean. */ public boolean getDefaultCreateEntities(); /** * Sets the default value determining whether or not entities should be * created by the renderer, and sends a change event to all registered * listeners. * * @param create the flag value. */ public void setDefaultCreateEntities(boolean create); /** * Sets the default value determining whether or not entities should be * created by the renderer, and sends a change event to all registered * listeners. * * @param create the flag value. * @param notify notify listeners? */ public void setDefaultCreateEntities(boolean create, boolean notify); //// ANNOTATIONS ////////////////////////////////////////////////////////// /** * Adds an annotation and sends a {@link RendererChangeEvent} to all * registered listeners. The annotation is added to the foreground * layer. * * @param annotation the annotation ({@code null} not permitted). */ public void addAnnotation(XYAnnotation annotation); /** * Adds an annotation to the specified layer. * * @param annotation the annotation ({@code null} not permitted). * @param layer the layer ({@code null} not permitted). */ public void addAnnotation(XYAnnotation annotation, Layer layer); /** * Removes the specified annotation and sends a {@link RendererChangeEvent} * to all registered listeners. * * @param annotation the annotation to remove ({@code null} not * permitted). * * @return A boolean to indicate whether or not the annotation was * successfully removed. */ public boolean removeAnnotation(XYAnnotation annotation); /** * Removes all annotations and sends a {@link RendererChangeEvent} * to all registered listeners. */ public void removeAnnotations(); /** * Draws all the annotations for the specified layer. * * @param g2 the graphics device. * @param dataArea the data area. * @param domainAxis the domain axis. * @param rangeAxis the range axis. * @param layer the layer. * @param info the plot rendering info. */ public void drawAnnotations(Graphics2D g2, Rectangle2D dataArea, ValueAxis domainAxis, ValueAxis rangeAxis, Layer layer, PlotRenderingInfo info); //// DRAWING ////////////////////////////////////////////////////////////// /** * Initialises the renderer then returns the number of 'passes' through the * data that the renderer will require (usually just one). 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 dataset the dataset. * @param info an optional info collection object to return data back to * the caller. * * @return The number of passes the renderer requires. */ public XYItemRendererState initialise(Graphics2D g2, Rectangle2D dataArea, XYPlot plot, XYDataset dataset, PlotRenderingInfo info); /** * Called for each item to be plotted. *

* The {@link XYPlot} can make multiple passes through the dataset, * depending on the value returned by the renderer's initialise() method. * * @param g2 the graphics device. * @param state the renderer state. * @param dataArea the area within which the data is being rendered. * @param info collects drawing info. * @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} permitted). * @param pass the pass index. */ 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); /** * Fills a band between two values on the axis. This can be used to color * bands between the grid lines. * * @param g2 the graphics device. * @param plot the plot. * @param axis the domain axis. * @param dataArea the data area. * @param start the start value. * @param end the end value. */ public void fillDomainGridBand(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double start, double end); /** * Fills a band between two values on the range axis. This can be used to * color bands between the grid lines. * * @param g2 the graphics device. * @param plot the plot. * @param axis the range axis. * @param dataArea the data area. * @param start the start value. * @param end the end value. */ public void fillRangeGridBand(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double start, double end); /** * Draws a grid line against the domain axis. * * @param g2 the graphics device. * @param plot the plot. * @param axis the value axis. * @param dataArea the area for plotting data. * @param value the value. * @param paint the paint ({@code null} not permitted). * @param stroke the stroke ({@code null} not permitted). */ public void drawDomainLine(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value, Paint paint, Stroke stroke); /** * Draws a line perpendicular to the range axis. * * @param g2 the graphics device. * @param plot the plot. * @param axis the value axis. * @param dataArea the area for plotting data. * @param value the data value. * @param paint the paint ({@code null} not permitted). * @param stroke the stroke ({@code null} not permitted). */ public void drawRangeLine(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value, Paint paint, Stroke stroke); /** * Draws the specified {@code marker} against the domain axis. * * @param g2 the graphics device. * @param plot the plot. * @param axis the value axis. * @param marker the marker. * @param dataArea the axis data area. */ public void drawDomainMarker(Graphics2D g2, XYPlot plot, ValueAxis axis, Marker marker, Rectangle2D dataArea); /** * Draws a horizontal line across the chart to represent a 'range marker'. * * @param g2 the graphics device. * @param plot the plot. * @param axis the value axis. * @param marker the marker line. * @param dataArea the axis data area. */ public void drawRangeMarker(Graphics2D g2, XYPlot plot, ValueAxis axis, Marker marker, Rectangle2D dataArea); }





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