jfreechart源码

/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public * License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ----------- * XYPlot.java * ----------- * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): Craig MacFarlane; * Mark Watson (www.markwatson.com); * Jonathan Nash; * Gideon Krause; * Klaus Rheinwald; * Xavier Poinsard; * Richard Atkinson; * Arnaud Lelievre; * Nicolas Brodu; * Eduardo Ramalho; * Sergei Ivanov; * Richard West, Advanced Micro Devices, Inc.; * * Changes (from 21-Jun-2001) * -------------------------- * 21-Jun-2001 : Removed redundant JFreeChart parameter from constructors (DG); * 18-Sep-2001 : Updated header and fixed DOS encoding problem (DG); * 15-Oct-2001 : Data source classes moved to com.jrefinery.data.* (DG); * 19-Oct-2001 : Removed the code for drawing the visual representation of each * data point into a separate class StandardXYItemRenderer. * This will make it easier to add variations to the way the * charts are drawn. Based on code contributed by Mark * Watson (DG); * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG); * 20-Nov-2001 : Fixed clipping bug that shows up when chart is displayed * inside JScrollPane (DG); * 12-Dec-2001 : Removed unnecessary 'throws' clauses from constructor (DG); * 13-Dec-2001 : Added skeleton code for tooltips. Added new constructor. (DG); * 16-Jan-2002 : Renamed the tooltips class (DG); * 22-Jan-2002 : Added DrawInfo class, incorporating tooltips and crosshairs. * Crosshairs based on code by Jonathan Nash (DG); * 05-Feb-2002 : Added alpha-transparency setting based on code by Sylvain * Vieujot (DG); * 26-Feb-2002 : Updated getMinimumXXX() and getMaximumXXX() methods to handle * special case when chart is null (DG); * 28-Feb-2002 : Renamed Datasets.java --> DatasetUtilities.java (DG); * 28-Mar-2002 : The plot now registers with the renderer as a property change * listener. Also added a new constructor (DG); * 09-Apr-2002 : Removed the transRangeZero from the renderer.drawItem() * method. Moved the tooltip generator into the renderer (DG); * 23-Apr-2002 : Fixed bug in methods for drawing horizontal and vertical * lines (DG); * 13-May-2002 : Small change to the draw() method so that it works for * OverlaidXYPlot also (DG); * 25-Jun-2002 : Removed redundant import (DG); * 20-Aug-2002 : Renamed getItemRenderer() --> getRenderer(), and * setXYItemRenderer() --> setRenderer() (DG); * 28-Aug-2002 : Added mechanism for (optional) plot annotations (DG); * 02-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 18-Nov-2002 : Added grid settings for both domain and range axis (previously * these were set in the axes) (DG); * 09-Jan-2003 : Further additions to the grid settings, plus integrated plot * border bug fix contributed by Gideon Krause (DG); * 22-Jan-2003 : Removed monolithic constructor (DG); * 04-Mar-2003 : Added 'no data' message, see bug report 691634. Added * secondary range markers using code contributed by Klaus * Rheinwald (DG); * 26-Mar-2003 : Implemented Serializable (DG); * 03-Apr-2003 : Added setDomainAxisLocation() method (DG); * 30-Apr-2003 : Moved annotation drawing into a separate method (DG); * 01-May-2003 : Added multi-pass mechanism for renderers (DG); * 02-May-2003 : Changed axis locations from int to AxisLocation (DG); * 15-May-2003 : Added an orientation attribute (DG); * 02-Jun-2003 : Removed range axis compatibility test (DG); * 05-Jun-2003 : Added domain and range grid bands (sponsored by Focus Computer * Services Ltd) (DG); * 26-Jun-2003 : Fixed bug (757303) in getDataRange() method (DG); * 02-Jul-2003 : Added patch from bug report 698646 (secondary axes for * overlaid plots) (DG); * 23-Jul-2003 : Added support for multiple secondary datasets, axes and * renderers (DG); * 27-Jul-2003 : Added support for stacked XY area charts (RA); * 19-Aug-2003 : Implemented Cloneable (DG); * 01-Sep-2003 : Fixed bug where change to secondary datasets didn't generate * change event (797466) (DG) * 08-Sep-2003 : Added internationalization via use of properties * resourceBundle (RFE 690236) (AL); * 08-Sep-2003 : Changed ValueAxis API (DG); * 08-Sep-2003 : Fixes for serialization (NB); * 16-Sep-2003 : Changed ChartRenderingInfo --> PlotRenderingInfo (DG); * 17-Sep-2003 : Fixed zooming to include secondary domain axes (DG); * 18-Sep-2003 : Added getSecondaryDomainAxisCount() and * getSecondaryRangeAxisCount() methods suggested by Eduardo * Ramalho (RFE 808548) (DG); * 23-Sep-2003 : Split domain and range markers into foreground and * background (DG); * 06-Oct-2003 : Fixed bug in clearDomainMarkers() and clearRangeMarkers() * methods. Fixed bug (815876) in addSecondaryRangeMarker() * method. Added new addSecondaryDomainMarker methods (see bug * id 815869) (DG); * 10-Nov-2003 : Added getSecondaryDomain/RangeAxisMappedToDataset() methods * requested by Eduardo Ramalho (DG); * 24-Nov-2003 : Removed unnecessary notification when updating axis anchor * values (DG); * 21-Jan-2004 : Update for renamed method in ValueAxis (DG); * 25-Feb-2004 : Replaced CrosshairInfo with CrosshairState (DG); * 12-Mar-2004 : Fixed bug where primary renderer is always used to determine * range type (DG); * 22-Mar-2004 : Fixed cloning bug (DG); * 23-Mar-2004 : Fixed more cloning bugs (DG); * 07-Apr-2004 : Fixed problem with axis range when the secondary renderer is * stacked, see this post in the forum: * http://www.jfree.org/phpBB2/viewtopic.php?t=8204 (DG); * 07-Apr-2004 : Added get/setDatasetRenderingOrder() methods (DG); * 26-Apr-2004 : Added option to fill quadrant areas in the background of the * plot (DG); * 27-Apr-2004 : Removed major distinction between primary and secondary * datasets, renderers and axes (DG); * 30-Apr-2004 : Modified to make use of the new getRangeExtent() method in the * renderer interface (DG); * 13-May-2004 : Added optional fixedLegendItems