JSP 网页报表实例

/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2008, 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.] * * ------------ * PiePlot.java * ------------ * (C) Copyright 2000-2008, by Andrzej Porebski and Contributors. * * Original Author: Andrzej Porebski; * Contributor(s): David Gilbert (for Object Refinery Limited); * Martin Cordova (percentages in labels); * Richard Atkinson (URL support for image maps); * Christian W. Zuckschwerdt; * Arnaud Lelievre; * Martin Hilpert (patch 1891849); * Andreas Schroeder (very minor); * * Changes * ------- * 21-Jun-2001 : Removed redundant JFreeChart parameter from constructors (DG); * 18-Sep-2001 : Updated header (DG); * 15-Oct-2001 : Data source classes moved to com.jrefinery.data.* (DG); * 19-Oct-2001 : Moved series paint and stroke methods from JFreeChart.java to * Plot.java (DG); * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG); * 13-Nov-2001 : Modified plot subclasses so that null axes are possible for * pie plot (DG); * 17-Nov-2001 : Added PieDataset interface and amended this class accordingly, * and completed removal of BlankAxis class as it is no longer * required (DG); * 19-Nov-2001 : Changed 'drawCircle' property to 'circular' property (DG); * 21-Nov-2001 : Added options for exploding pie sections and filled out range * of properties (DG); * Added option for percentages in chart labels, based on code * by Martin Cordova (DG); * 30-Nov-2001 : Changed default font from "Arial" --> "SansSerif" (DG); * 12-Dec-2001 : Removed unnecessary 'throws' clause in constructor (DG); * 13-Dec-2001 : Added tooltips (DG); * 16-Jan-2002 : Renamed tooltips class (DG); * 22-Jan-2002 : Fixed bug correlating legend labels with pie data (DG); * 05-Feb-2002 : Added alpha-transparency to plot class, and updated * constructors accordingly (DG); * 06-Feb-2002 : Added optional background image and alpha-transparency to Plot * and subclasses. Clipped drawing within plot area (DG); * 26-Mar-2002 : Added an empty zoom method (DG); * 18-Apr-2002 : PieDataset is no longer sorted (oldman); * 23-Apr-2002 : Moved dataset from JFreeChart to Plot. Added * getLegendItemLabels() method (DG); * 19-Jun-2002 : Added attributes to control starting angle and direction * (default is now clockwise) (DG); * 25-Jun-2002 : Removed redundant imports (DG); * 02-Jul-2002 : Fixed sign of percentage bug introduced in 0.9.2 (DG); * 16-Jul-2002 : Added check for null dataset in getLegendItemLabels() (DG); * 30-Jul-2002 : Moved summation code to DatasetUtilities (DG); * 05-Aug-2002 : Added URL support for image maps - new member variable for * urlGenerator, modified constructor and minor change to the * draw method (RA); * 18-Sep-2002 : Modified the percent label creation and added setters for the * formatters (AS); * 24-Sep-2002 : Added getLegendItems() method (DG); * 02-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 09-Oct-2002 : Added check for null entity collection (DG); * 30-Oct-2002 : Changed PieDataset interface (DG); * 18-Nov-2002 : Changed CategoryDataset to TableDataset (DG); * 02-Jan-2003 : Fixed "no data" message (DG); * 23-Jan-2003 : Modified to extract data from rows OR columns in * CategoryDataset (DG); * 14-Feb-2003 : Fixed label drawing so that foreground alpha does not apply * (bug id 685536) (DG); * 07-Mar-2003 : Modified to pass pieIndex on to PieSectionEntity and tooltip * and URL generators (DG); * 21-Mar-2003 : Added a minimum angle for drawing arcs * (see bug id 620031) (DG); * 24-Apr-2003 : Switched around PieDataset and KeyedValuesDataset (DG); * 02-Jun-2003 : Fixed bug 721733 (DG); * 30-Jul-2003 : Modified entity constructor (CZ); * 19-Aug-2003 : Implemented Cloneable (DG); * 29-Aug-2003 : Fixed bug 796936 (null pointer on setOutlinePaint()) (DG); * 08-Sep-2003 : Added internationalization via use of properties * resourceBundle (RFE 690236) (AL); * 16-Sep-2003 : Changed ChartRenderingInfo --> PlotRenderingInfo (DG); * 29-Oct-2003 : Added workaround for font alignment in PDF output (DG); * 05-Nov-2003 : Fixed missing legend bug (DG); * 10-Nov-2003 : Re-added the DatasetChangeListener to constructors (CZ); * 29-Jan-2004 : Fixed clipping bug in draw() method (DG); * 11-Mar-2004 : Major overhaul to improve labelling (DG); * 31-Mar-2004 : Made an adjustment for the plot area when the label generator * is null. Fixed null pointer exception when the label * generator returns null for a label (DG); * 06-Apr-2004 : Added getter, setter, serialization and draw support for * labelBackgroundPaint (AS); * 08-Apr-2004 : Added flag to control whether null values are ignored or * not (DG); * 15-Apr-2004 : Fixed some minor warnings from Eclipse (DG); * 26-Apr-2004 : Added attributes for label outline and shadow (DG); * 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG); * 04-Nov-2004 : Fixed null pointer exception with new LegendTitle class (DG); * 09-Nov-2004 : Added user definable legend item shape (DG); * 25-Nov-2004 : Added new legend label generator (DG); * 20-Apr-2005 : Added a tool tip generator for legend labels (DG); * 26-Apr-2005 : Removed LOGGER (DG); * 05-May-2005 : Updated draw() method parameters (DG); * 10-May-2005 : Added flag to control visibility of label linking lines, plus * another flag to control the handling of zero values (DG); * 08-Jun-2005 : Fixed bug in getLegendItems() method (not respecting flags * for ignoring null and zero values), and fixed equals() method * to handle GradientPaint (DG); * 15-Jul-2005 : Added sectionOutlinesVisible attribute (DG); * ------------- JFREECHART 1.0.x --------------------------------------------- * 09-Jan-2006 : Fixed bug 1400442, inconsistent treatment of null and zero * values in dataset (DG); * 28-Feb-2006 : Fixed bug 1440415, bad distribution of pie section * labels (DG); * 27-Sep-2006 : Initialised baseSectionPaint correctly, added lookup methods * for section paint, outline paint and outline stroke (DG); * 27-Sep-2006 : Refactored paint and stroke methods to use keys rather than * section indices (DG); * 03-Oct-2006 : Replaced call to JRE 1.5 method (DG); * 23-Nov-2006 : Add