swtploteditor.java

java图形利器

/* ===========================================================
 * 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.]
 *
 * ------------------
 * SWTPlotEditor.java
 * ------------------
 * (C) Copyright 2006, 2007, by Henry Proudhon and Contributors.
 *
 * Original Author:  Henry Proudhon (henry.proudhon AT insa-lyon.fr);
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 01-Aug-2006 : New class (HP);
 * 
 */

package org.jfree.experimental.chart.swt.editor;

import java.awt.Stroke;
import java.util.ResourceBundle;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.jfree.chart.axis.Axis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.experimental.swt.SWTUtils;

/**
 * An editor for plot properties.
 */
class SWTPlotEditor extends Composite {
    
    /** 
     * A panel used to display/edit the properties of the domain axis (if any). 
     */
    private SWTAxisEditor domainAxisPropertyPanel;

    /** 
     * A panel used to display/edit the properties of the range axis (if any).
     */
    private SWTAxisEditor rangeAxisPropertyPanel;

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

    /**
     * Creates a new editor for the specified plot.
     * 
     * @param parent  the parent.
     * @param style  the style.
     * @param plot  the plot.
     */
    public SWTPlotEditor(Composite parent, int style, Plot plot) {
        super(parent, style);
        FillLayout layout = new FillLayout();
        layout.marginHeight = layout.marginWidth = 4;
        this.setLayout(layout);

        Group plotType = new Group(this, SWT.NONE);
        FillLayout plotTypeLayout = new FillLayout();
        plotTypeLayout.marginHeight = plotTypeLayout.marginWidth = 4;
        plotType.setLayout(plotTypeLayout);
        plotType.setText(plot.getPlotType() + localizationResources.getString(
                ":"));
        
        TabFolder tabs = new TabFolder(plotType, SWT.NONE);
        
        //deal with domain axis
        TabItem item1 = new TabItem(tabs, SWT.NONE);
        item1.setText(localizationResources.getString("Domain_Axis"));
        Axis domainAxis = null;
        if (plot instanceof CategoryPlot) {
            domainAxis = ((CategoryPlot) plot).getDomainAxis();
        }
        else if (plot instanceof XYPlot) {
            domainAxis = ((XYPlot) plot).getDomainAxis();
        }
        this.domainAxisPropertyPanel = SWTAxisEditor.getInstance(tabs, 
                SWT.NONE, domainAxis);
        item1.setControl(this.domainAxisPropertyPanel);
        
        //deal with range axis
        TabItem item2 = new TabItem(tabs, SWT.NONE);
        item2.setText(localizationResources.getString("Range_Axis"));
        Axis rangeAxis = null;
        if (plot instanceof CategoryPlot) {
            rangeAxis = ((CategoryPlot) plot).getRangeAxis();
        }
        else if (plot instanceof XYPlot) {
            rangeAxis = ((XYPlot) plot).getRangeAxis();
        }
        this.rangeAxisPropertyPanel = SWTAxisEditor.getInstance(tabs, SWT.NONE,
                rangeAxis);
        item2.setControl(this.rangeAxisPropertyPanel);
        
        //deal with plot appearance
        TabItem item3 = new TabItem(tabs, SWT.NONE);
        item3.setText(localizationResources.getString("Appearance"));
        this.plotAppearance = new SWTPlotAppearanceEditor(tabs, SWT.NONE, plot);
        item3.setControl(this.plotAppearance);
    }

    /**
     * Returns the current outline stroke.
     * 
     * @return The current outline stroke.
     */
    public Color getBackgroundPaint() {
        return this.plotAppearance.getBackGroundPaint();
    }

    /**
     * Returns the current outline stroke.
     * 
     * @return The current outline stroke.
     */
    public Color getOutlinePaint() {
        return this.plotAppearance.getOutlinePaint();
    }

    /**
     * Returns the current outline stroke.
     * 
     * @return The current outline stroke.
     */
    public Stroke getOutlineStroke() {
        return this.plotAppearance.getStroke();
    }


    /**
     * Updates the plot properties to match the properties 
     * defined on the panel.
     *
     * @param plot  The plot.
     */
    public void updatePlotProperties(Plot plot) {
        // set the plot properties...
        plot.setBackgroundPaint(SWTUtils.toAwtColor(getBackgroundPaint()));
        plot.setOutlinePaint(SWTUtils.toAwtColor(getOutlinePaint()));
        plot.setOutlineStroke(getOutlineStroke());
        
        // set the axis properties
        if (this.domainAxisPropertyPanel != null) {
            Axis domainAxis = null;
            if (plot instanceof CategoryPlot) {
                CategoryPlot p = (CategoryPlot) plot;
                domainAxis = p.getDomainAxis();
            }
            else if (plot instanceof XYPlot) {
                XYPlot p = (XYPlot) plot;
                domainAxis = p.getDomainAxis();
            }
            if (domainAxis != null)
                this.domainAxisPropertyPanel.setAxisProperties(domainAxis);
        }
        if (this.rangeAxisPropertyPanel != null) {
            Axis rangeAxis = null;
            if (plot instanceof CategoryPlot) {
                CategoryPlot p = (CategoryPlot) plot;
                rangeAxis = p.getRangeAxis();
            }
            else if (plot instanceof XYPlot) {
                XYPlot p = ( XYPlot ) plot;
                rangeAxis = p.getRangeAxis();
            }
            if (rangeAxis != null)
                this.rangeAxisPropertyPanel.setAxisProperties(rangeAxis);
        }
        if (this.plotAppearance.getPlotOrientation() != null) {
            if (plot instanceof CategoryPlot) {
                CategoryPlot p = (CategoryPlot) plot;
                p.setOrientation(this.plotAppearance.getPlotOrientation() );
            }
            else if (plot instanceof XYPlot) {
                XYPlot p = (XYPlot) plot;
                p.setOrientation(this.plotAppearance.getPlotOrientation());
            }
        }
    }
}