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jfreechart example source code file (SWTPlotAppearanceEditor.java)

This example jfreechart source code file (SWTPlotAppearanceEditor.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

awt, button, color, colordialog, colordialog, filllayout, griddata, label, label, orientation_horizontal, orientation_vertical, selectionadapter, selectionadapter, swtpaintcanvas, swtpaintcanvas, util

The jfreechart SWTPlotAppearanceEditor.java source code

/* ===========================================================
 * 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.]
 *
 * ----------------------------
 * SWTPlotAppearanceEditor.java
 * ----------------------------
 * (C) Copyright 2006-2008, by Henry Proudhon and Contributors.
 *
 * Original Author:  Henry Proudhon (henry.proudhon AT ensmp.fr);
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 01-Aug-2006 : New class (HP);
 * 18-Dec-2008 : Use ResourceBundleWrapper - see patch 1607918 by
 *               Jess Thrysoee (DG);
 *
 */

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

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

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ColorDialog;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Spinner;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.util.ResourceBundleWrapper;
import org.jfree.experimental.swt.SWTPaintCanvas;
import org.jfree.experimental.swt.SWTUtils;

/**
 * An editor for plot properties.
 */
class SWTPlotAppearanceEditor extends Composite {

    private Spinner selectStroke;

    /** The stroke (pen) used to draw the outline of the plot. */
    private SWTStrokeCanvas strokeCanvas;

    /** The paint (color) used to fill the background of the plot. */
    private SWTPaintCanvas backgroundPaintCanvas;

    /** The paint (color) used to draw the outline of the plot. */
    private SWTPaintCanvas outlinePaintCanvas;

    /** The orientation for the plot. */
    private PlotOrientation plotOrientation;

    private Combo orientation;

    /** Orientation constants. */
    private final static String[] orientationNames = {"Vertical", "Horizontal"};
    private final static int ORIENTATION_VERTICAL = 0;
    private final static int ORIENTATION_HORIZONTAL = 1;

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

    SWTPlotAppearanceEditor(Composite parent, int style, Plot plot) {
        super(parent, style);
        FillLayout layout = new FillLayout();
        layout.marginHeight = layout.marginWidth = 4;
        setLayout(layout);

        Group general = new Group(this, SWT.NONE);
        GridLayout groupLayout = new GridLayout(3, false);
        groupLayout.marginHeight = groupLayout.marginWidth = 4;
        general.setLayout(groupLayout);
        general.setText(localizationResources.getString("General"));

        // row 1: stroke
        new Label(general, SWT.NONE).setText(localizationResources.getString(
                "Outline_stroke"));
        this.strokeCanvas = new SWTStrokeCanvas(general, SWT.NONE);
        this.strokeCanvas.setStroke(plot.getOutlineStroke());
        GridData strokeGridData = new GridData(SWT.FILL, SWT.CENTER, true,
                false);
        strokeGridData.heightHint = 20;
        this.strokeCanvas.setLayoutData(strokeGridData);
        this.selectStroke = new Spinner(general, SWT.BORDER);
        this.selectStroke.setMinimum(1);
        this.selectStroke.setMaximum(3);
        this.selectStroke.setLayoutData(new GridData(SWT.FILL, SWT.CENTER,
                false, false));
        this.selectStroke.addSelectionListener(
                new SelectionAdapter() {
                    public void widgetSelected(SelectionEvent event) {
                        int w = SWTPlotAppearanceEditor.this.selectStroke
                                .getSelection();
                        if (w > 0) {
                            SWTPlotAppearanceEditor.this.strokeCanvas.setStroke(
                                    new BasicStroke(w));
                            SWTPlotAppearanceEditor.this.strokeCanvas.redraw();
                        }
                    }
                }
        );
        // row 2: outline color
        new Label(general, SWT.NONE).setText(localizationResources.getString(
                "Outline_Paint"));
        this.outlinePaintCanvas = new SWTPaintCanvas(general, SWT.NONE,
                SWTUtils.toSwtColor(getDisplay(), plot.getOutlinePaint()));
        GridData outlineGridData = new GridData(SWT.FILL, SWT.CENTER, true,
                false);
        outlineGridData.heightHint = 20;
        this.outlinePaintCanvas.setLayoutData(outlineGridData);
        Button selectOutlineColor = new Button(general, SWT.PUSH);
        selectOutlineColor.setText(localizationResources.getString(
                "Select..."));
        selectOutlineColor.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER,
                false, false));
        selectOutlineColor.addSelectionListener(
                new SelectionAdapter() {
                    public void widgetSelected(SelectionEvent event) {
                        ColorDialog dlg = new ColorDialog(getShell());
                        dlg.setText(localizationResources.getString(
                                "Outline_Paint"));
                        dlg.setRGB(SWTPlotAppearanceEditor.this
                                .outlinePaintCanvas.getColor().getRGB());
                        RGB rgb = dlg.open();
                        if (rgb != null) {
                            SWTPlotAppearanceEditor.this.outlinePaintCanvas
                                    .setColor(new Color(getDisplay(), rgb));
                        }
                    }
                }
        );
        // row 3: background paint
        new Label(general, SWT.NONE).setText(localizationResources.getString(
                "Background_paint"));
        this.backgroundPaintCanvas = new SWTPaintCanvas(general, SWT.NONE,
                SWTUtils.toSwtColor(getDisplay(), plot.getBackgroundPaint()));
        GridData bgGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        bgGridData.heightHint = 20;
        this.backgroundPaintCanvas.setLayoutData(bgGridData);
        Button selectBgPaint = new Button(general, SWT.PUSH);
        selectBgPaint.setText(localizationResources.getString("Select..."));
        selectBgPaint.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false,
                false));
        selectBgPaint.addSelectionListener(
                new SelectionAdapter() {
                    public void widgetSelected(SelectionEvent event) {
                        ColorDialog dlg = new ColorDialog(getShell());
                        dlg.setText(localizationResources.getString(
                                "Background_paint"));
                        dlg.setRGB(SWTPlotAppearanceEditor.this
                                .backgroundPaintCanvas.getColor().getRGB());
                        RGB rgb = dlg.open();
                        if (rgb != null) {
                            SWTPlotAppearanceEditor.this.backgroundPaintCanvas
                                    .setColor(new Color(getDisplay(), rgb));
                        }
                    }
                }
        );
        // row 4: orientation
        if (plot instanceof CategoryPlot) {
            this.plotOrientation = ((CategoryPlot) plot).getOrientation();
        }
        else if (plot instanceof XYPlot) {
            this.plotOrientation = ((XYPlot) plot).getOrientation();
        }
        if (this.plotOrientation != null) {
            boolean isVertical
                    = this.plotOrientation.equals(PlotOrientation.VERTICAL);
            int index = isVertical ? ORIENTATION_VERTICAL
                    : ORIENTATION_HORIZONTAL;
            new Label(general, SWT.NONE).setText(
                    localizationResources.getString("Orientation"));
            this.orientation = new Combo(general, SWT.DROP_DOWN);
            this.orientation.setItems(orientationNames);
            this.orientation.select(index);
            this.orientation.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER,
                    true, false, 2, 1));
            this.orientation.addSelectionListener(
                    new SelectionAdapter() {
                        public void widgetSelected(SelectionEvent event) {
                            switch (SWTPlotAppearanceEditor.this.orientation
                                    .getSelectionIndex()) {
                                case ORIENTATION_VERTICAL:
                                    SWTPlotAppearanceEditor.this.plotOrientation
                                            = PlotOrientation.VERTICAL;
                                    break;
                                case ORIENTATION_HORIZONTAL:
                                    SWTPlotAppearanceEditor.this.plotOrientation
                                            = PlotOrientation.HORIZONTAL;
                                    break;
                                default:
                                    SWTPlotAppearanceEditor.this.plotOrientation
                                            = PlotOrientation.VERTICAL;
                            }
                        }
                    }
            );
        }
    }

    /**
     * Returns the plot orientation.
     *
     * @return The plot orientation.
     */
    public PlotOrientation getPlotOrientation() {
        return this.plotOrientation;
    }

    /**
     * Returns the background paint.
     *
     * @return The background paint.
     */
    public Color getBackGroundPaint() {
        return this.backgroundPaintCanvas.getColor();
    }

    /**
     * Returns the outline paint.
     *
     * @return The outline paint.
     */
    public Color getOutlinePaint() {
        return this.outlinePaintCanvas.getColor();
    }

    /**
     * Returns the stroke.
     *
     * @return The stroke.
     */
    public Stroke getStroke() {
        return this.strokeCanvas.getStroke();
    }
}

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