legendpropertyeditpanel.java

来自「JfreeChart 常用图表例子」· Java 代码 · 共 443 行 · 第 1/2 页

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2005, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * ----------------------------
 * LegendPropertyEditPanel.java
 * ----------------------------
 * (C) Copyright 2000-2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert;
 * Contributor(s):   Arnaud Lelievre;
 *                   Daniel Gredler;
 *
 * $Id: LegendPropertyEditPanel.java,v 1.5 2005/03/29 12:56:52 mungady Exp $
 *
 * Changes (from 24-Aug-2001)
 * --------------------------
 * 24-Aug-2001 : Added standard source header. Fixed DOS encoding problem (DG);
 * 07-Nov-2001 : Separated the JCommon Class Library classes, JFreeChart now 
 *               requires jcommon.jar (DG);
 * 25-Jun-2002 : Revised header, removed redundant code (DG);
 * 08-Sep-2003 : Added internationalization via use of properties 
 *               resourceBundle (RFE 690236) (AL); 
 * 24-Aug-2004 : Applied patch 1014378 (DG);
 *
 */

package org.jfree.chart.ui;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Paint;
import java.awt.Stroke;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ResourceBundle;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JColorChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

import org.jfree.chart.JFreeChart;
import org.jfree.chart.OldLegend;
import org.jfree.chart.DefaultOldLegend;
import org.jfree.layout.LCBLayout;
import org.jfree.ui.FontChooserPanel;
import org.jfree.ui.FontDisplayField;
import org.jfree.ui.PaintSample;
import org.jfree.ui.StrokeChooserPanel;
import org.jfree.ui.StrokeSample;

/**
 * A panel for editing the properties of a {@link OldLegend}.
 */
class LegendPropertyEditPanel extends JPanel implements ActionListener {

    /** Whether or not to display the legend on the chart. */
    private boolean showLegend;

    /** The checkbox to indicate whether or not to display the legend. */
    private JCheckBox showLegendCheckBox;

    /** The stroke (pen) used to draw the legend outline. */
    private StrokeSample outlineStroke;

    /** The button used to select the legend outline stroke. */
    private JButton selectOutlineStrokeButton;

    /** The paint (color) used to draw the legend outline. */
    private PaintSample outlinePaint;

    /** The button used to select the legend outline color. */
    private JButton selectOutlinePaintButton;

    /** The paint (color) used to fill the legend background. */
    private PaintSample backgroundPaint;

    /** The button used to select the legend background color. */
    private JButton selectBackgroundPaintButton;

    /** The font used to draw the series names. */
    private Font seriesFont;

    /** The button used to select the series name font. */
    private JButton selectSeriesFontButton;

    /** The paint (color) used to draw the series names. */
    private PaintSample seriesPaint;

    /** The button used to select the series name paint. */
    private JButton selectSeriesPaintButton;

    /** An array of strokes (pens) to select from. */
    private StrokeSample[] availableStrokeSamples;

    /** A field for displaying the series label font. */
    private FontDisplayField fontDisplayField;

    /** The resourceBundle for the localization. */
    protected static ResourceBundle localizationResources 
        = ResourceBundle.getBundle("org.jfree.chart.ui.LocalizationBundle");

    /**
     * Standard constructor: builds a panel based on the specified legend.
     * If the specified legend is <tt>null</tt>, the panel will reflect the
     * fact that no legend is to be displayed.
     *
     * @param legend    the legend, which should be changed.
     */
    public LegendPropertyEditPanel(OldLegend legend) {

        DefaultOldLegend l = (legend != null 
            ? (DefaultOldLegend) legend : new DefaultOldLegend());
        this.showLegend = (legend != null);
        this.outlineStroke = new StrokeSample(l.getOutlineStroke());
        this.outlinePaint = new PaintSample(l.getOutlinePaint());
        this.backgroundPaint = new PaintSample(l.getBackgroundPaint());
        this.seriesFont = l.getItemFont();
        this.seriesPaint = new PaintSample(l.getItemPaint());

        this.availableStrokeSamples = new StrokeSample[4];
        this.availableStrokeSamples[0] 
            = new StrokeSample(new BasicStroke(1.0f));
        this.availableStrokeSamples[1] 
            = new StrokeSample(new BasicStroke(2.0f));
        this.availableStrokeSamples[2] 
            = new StrokeSample(new BasicStroke(3.0f));
        this.availableStrokeSamples[3] 
            = new StrokeSample(new BasicStroke(4.0f));

        setLayout(new BorderLayout());

        JPanel general = new JPanel(new BorderLayout());
        general.setBorder(
            BorderFactory.createTitledBorder(
                BorderFactory.createEtchedBorder(), 
                localizationResources.getString("General")
            )
        );

        JPanel interior = new JPanel(new LCBLayout(6));
        interior.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));

        interior.add(
            new JLabel(localizationResources.getString("Show_Legend"))
        );
        this.showLegendCheckBox = new JCheckBox();
        this.showLegendCheckBox.setSelected(this.showLegend);
        this.showLegendCheckBox.setActionCommand("ShowLegend");
        this.showLegendCheckBox.addActionListener(this);
        interior.add(new JPanel());
        interior.add(this.showLegendCheckBox);

        interior.add(new JLabel(localizationResources.getString("Outline")));
        interior.add(this.outlineStroke);
        this.selectOutlineStrokeButton 
            = new JButton(localizationResources.getString("Select..."));
        this.selectOutlineStrokeButton.setActionCommand("OutlineStroke");
        this.selectOutlineStrokeButton.addActionListener(this);
        interior.add(this.selectOutlineStrokeButton);

        interior.add(
            new JLabel(localizationResources.getString("Outline_Paint"))
        );
        this.selectOutlinePaintButton 
            = new JButton(localizationResources.getString("Select..."));
        this.selectOutlinePaintButton.setActionCommand("OutlinePaint");
        this.selectOutlinePaintButton.addActionListener(this);
        interior.add(this.outlinePaint);
        interior.add(this.selectOutlinePaintButton);

        interior.add(new JLabel(localizationResources.getString("Background")));
        this.selectBackgroundPaintButton = new JButton(
            localizationResources.getString("Select...")
        );
        this.selectBackgroundPaintButton.setActionCommand("BackgroundPaint");
        this.selectBackgroundPaintButton.addActionListener(this);
        interior.add(this.backgroundPaint);
        interior.add(this.selectBackgroundPaintButton);

        interior.add(
            new JLabel(localizationResources.getString("Series_label_font"))
        );
        this.selectSeriesFontButton 
            = new JButton(localizationResources.getString("Select..."));
        this.selectSeriesFontButton.setActionCommand("SeriesFont");
        this.selectSeriesFontButton.addActionListener(this);
        this.fontDisplayField = new FontDisplayField(this.seriesFont);
        interior.add(this.fontDisplayField);
        interior.add(this.selectSeriesFontButton);

        interior.add(
            new JLabel(localizationResources.getString("Series_label_paint"))
        );
        this.selectSeriesPaintButton