Logo
Distributed Genetic Programming Framework
print print

File org.jfree.demo.DrawStringDemo.java

Here you can find all the information about the file org.jfree.demo.DrawStringDemo.java. You may explore it here or download it onto your local disk.
/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/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.]
 * 
 * -------------------
 * DrawStringDemo.java
 * -------------------
 * (C) Copyright 2003-2005, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: DrawStringDemo.java,v 1.4 2005/10/18 13:15:41 mungady Exp $
 *
 * Changes
 * -------
 * 10-Jun-2003 : Version 1;
 *
 */


package org.jfree.demo;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.JTabbedPane;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.FontChooserPanel;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;

/**
 * A demo of some of the string drawing methods in the JCommon class library.
 */

public class DrawStringDemo extends ApplicationFrame 
                            implements ActionListener, ChangeListener {

    /** The alignment anchor for the first panel. */
    private JComboBox combo1;

    /** The alignment anchor for the second panel. */
    private JComboBox combo2;

    /** The rotation anchor for the second panel. */
    private JComboBox combo3;

    /** A slider for the second panel - controls the angle of rotation. */
    private JSlider slider;
    
    /** String panel 1. */
    private DrawStringPanel drawStringPanel1;

    /** String panel 2. */
    private DrawStringPanel drawStringPanel2;

    /**
     * Creates a new demo instance.
     *
     * @param title  the frame title.
     */

    public DrawStringDemo(final String title) {
        super(title);
        setContentPane(createContentPane());
    }

    /**
     * Receives action events.
     *
     * @param event  the event.
     */

    public void actionPerformed(final ActionEvent event) {
        if (event.getActionCommand().equals("fontButton.clicked")) {
            displayFontDialog();
        }
        if (event.getActionCommand().equals("combo1.changed")) {
            handleCombo1Change();
        }
        if (event.getActionCommand().equals("combo2.changed")) {
            handleCombo2Change();
        }
        if (event.getActionCommand().equals("combo3.changed")) {
            handleCombo3Change();
        }
    }

    public void stateChanged(ChangeEvent event) {
        int r = this.slider.getValue();
        double angle = Math.PI * 2.0 * (r / 360.0);
        this.drawStringPanel2.setAngle(angle);
        this.drawStringPanel2.invalidate();
        this.drawStringPanel2.repaint();
    }
    
    /**
     * Updates the display when combo 1 is updated.
     */

    private void handleCombo1Change() {
        final String text = this.combo1.getSelectedItem().toString();
        this.drawStringPanel1.setAnchor(convertStringToAnchor(text));
        this.drawStringPanel1.invalidate();
        this.drawStringPanel1.repaint();
    }

    /**
     * Updates the display when combo 2 is updated.
     */

    private void handleCombo2Change() {
        final String text = this.combo2.getSelectedItem().toString();
        this.drawStringPanel2.setAnchor(convertStringToAnchor(text));
        this.drawStringPanel2.invalidate();
        this.drawStringPanel2.repaint();
    }

    /**
     * Updates the display when combo 3 is updated.
     */

    private void handleCombo3Change() {
        final String text = this.combo3.getSelectedItem().toString();
        this.drawStringPanel2.setRotationAnchor(convertStringToAnchor(text));
        this.drawStringPanel2.invalidate();
        this.drawStringPanel2.repaint();
    }

    /**
     * Creates the content pane for the demo frame.
     *
     * @return The content pane.
     */

    private JPanel createContentPane() {
        final JPanel content = new JPanel(new BorderLayout());
        final JTabbedPane tabs = new JTabbedPane();
        tabs.add("Alignment", createTab1Content());
        tabs.add("Rotation", createTab2Content());
        content.add(tabs);
        return content;
    }

    /**
     * Creates the content for tab 1.
     *
     * @return The content panel.
     */

    private JPanel createTab1Content() {
        final JPanel content = new JPanel(new BorderLayout());
        this.combo1 = new JComboBox();
        this.combo1.setActionCommand("combo1.changed");
        populateTextAnchorCombo(this.combo1);
        this.combo1.addActionListener(this);

        final JPanel controls = new JPanel();
        controls.add(this.combo1);

        final JButton fontButton = new JButton("Select Font...");
        fontButton.setActionCommand("fontButton.clicked");
        fontButton.addActionListener(this);
        controls.add(fontButton);
        content.add(controls, BorderLayout.NORTH);
        this.drawStringPanel1 = new DrawStringPanel("0123456789", false);
        content.add(this.drawStringPanel1);
        return content;
    }

    /**
     * Creates the content for tab 2.
     *
     * @return The content panel.
     */

    private JPanel createTab2Content() {
        JPanel content = new JPanel(new BorderLayout());
        JPanel controls = new JPanel();
        controls.add(new JLabel("Text anchor: "));
        this.combo2 = new JComboBox();
        populateTextAnchorCombo(this.combo2);
        this.combo2.setActionCommand("combo2.changed");
        this.combo2.addActionListener(this);
        controls.add(this.combo2);
        controls.add(new JLabel("Rotation anchor: "));
        this.combo3 = new JComboBox();
        populateTextAnchorCombo(this.combo3);
        this.combo3.setActionCommand("combo3.changed");
        this.combo3.addActionListener(this);
        controls.add(this.combo3);
        this.slider = new JSlider(SwingConstants.VERTICAL, 0, 360, 0);
        this.slider.setMajorTickSpacing(45);
        this.slider.setMinorTickSpacing(5);
        this.slider.setPaintLabels(true);
        this.slider.setPaintTicks(true);
        this.slider.setPaintTrack(true);
        this.slider.addChangeListener(this);
        content.add(controls, BorderLayout.NORTH);
        content.add(this.slider, BorderLayout.WEST);
        this.drawStringPanel2 = new DrawStringPanel("Rotated Text", true);
        content.add(this.drawStringPanel2);
        return content;
    }

    /**
     * Displays a primitive font chooser dialog to allow the user to change the font.
     */

    private void displayFontDialog() {

        final FontChooserPanel panel = new FontChooserPanel(this.drawStringPanel1.getFont());
        final int result = JOptionPane.showConfirmDialog(this, panel, "Font Selection",
                                                   JOptionPane.OK_CANCEL_OPTION,
                                                   JOptionPane.PLAIN_MESSAGE);

        if (result == JOptionPane.OK_OPTION) {
            this.drawStringPanel1.setFont(panel.getSelectedFont());
            this.drawStringPanel2.setFont(panel.getSelectedFont());
        }

    }

    /**
     * Populates a combo box with the available {@link TextAnchor} options.
     *
     * @param combo  the combo box.
     */

    private void populateTextAnchorCombo(final JComboBox combo) {
        combo.addItem("TextAnchor.TOP_LEFT");
        combo.addItem("TextAnchor.TOP_CENTER");
        combo.addItem("TextAnchor.TOP_RIGHT");
        combo.addItem("TextAnchor.HALF_ASCENT_LEFT");
        combo.addItem("TextAnchor.HALF_ASCENT_CENTER");
        combo.addItem("TextAnchor.HALF_ASCENT_RIGHT");
        combo.addItem("TextAnchor.CENTER_LEFT");
        combo.addItem("TextAnchor.CENTER");
        combo.addItem("TextAnchor.CENTER_RIGHT");
        combo.addItem("TextAnchor.BASELINE_LEFT");
        combo.addItem("TextAnchor.BASELINE_CENTER");
        combo.addItem("TextAnchor.BASELINE_RIGHT");
        combo.addItem("TextAnchor.BOTTOM_LEFT");
        combo.addItem("TextAnchor.BOTTOM_CENTER");
        combo.addItem("TextAnchor.BOTTOM_RIGHT");
    }

    /**
     * Converts a string to a corresponding {@link TextAnchor} instance.
     *
     * @param text  the text.
     *
     * @return The anchor.
     */

    private TextAnchor convertStringToAnchor(final String text) {

        if (text.equals("TextAnchor.TOP_LEFT")) {
            return TextAnchor.TOP_LEFT;
        }
        else if (text.equals("TextAnchor.TOP_CENTER")) {
            return TextAnchor.TOP_CENTER;
        }
        else if (text.equals("TextAnchor.TOP_RIGHT")) {
            return TextAnchor.TOP_RIGHT;
        }
        else if (text.equals("TextAnchor.CENTER_LEFT")) {
            return TextAnchor.CENTER_LEFT;
        }
        else if (text.equals("TextAnchor.CENTER")) {
            return TextAnchor.CENTER;
        }
        else if (text.equals("TextAnchor.CENTER_RIGHT")) {
            return TextAnchor.CENTER_RIGHT;
        }
        else if (text.equals("TextAnchor.HALF_ASCENT_LEFT")) {
            return TextAnchor.HALF_ASCENT_LEFT;
        }
        else if (text.equals("TextAnchor.HALF_ASCENT_CENTER")) {
            return TextAnchor.HALF_ASCENT_CENTER;
        }
        else if (text.equals("TextAnchor.HALF_ASCENT_RIGHT")) {
            return TextAnchor.HALF_ASCENT_RIGHT;
        }
        else if (text.equals("TextAnchor.BASELINE_LEFT")) {
            return TextAnchor.BASELINE_LEFT;
        }
        else if (text.equals("TextAnchor.BASELINE_CENTER")) {
            return TextAnchor.BASELINE_CENTER;
        }
        else if (text.equals("TextAnchor.BASELINE_RIGHT")) {
            return TextAnchor.BASELINE_RIGHT;
        }
        else if (text.equals("TextAnchor.BOTTOM_LEFT")) {
            return TextAnchor.BOTTOM_LEFT;
        }
        else if (text.equals("TextAnchor.BOTTOM_CENTER")) {
            return TextAnchor.BOTTOM_CENTER;
        }
        else if (text.equals("TextAnchor.BOTTOM_RIGHT")) {
            return TextAnchor.BOTTOM_RIGHT;
        }
        else {
            return null;
        } 

    }

    /**
     * The starting point for the demo.
     *
     * @param args  ignored.
     */

    public static void main(final String[] args) {

        final DrawStringDemo demo = new DrawStringDemo("DrawString Demo");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}

File Information:

file name:DrawStringDemo.java
package:org.jfree.demo
qualified name:org.jfree.demo.DrawStringDemo.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/jfree/demo/DrawStringDemo.java
size:11.732 KB (12014 B)
uploaded: 2015-07-22 04:11:08 GMT+0000
last update: 2006-09-26 10:30:34 GMT+0000
last access: 2018-01-23 15:30:24 GMT+0000

statistics online since 2006-01-02.   RSS Feed
Contact us by sending an email to tweise@gmx.de to receive further information, to report errors, or to join our project.
All content on this site (http://dgpf.sourceforge.net/) is LGPL-licensed.
http://dgpf.sourceforge.net/scripts/source/source.php last modified at 2015-07-22 04:10:53 GMT+0000 served at 2018-01-23 15:30:24 GMT+0000.
Valid CSS Valid XHTML 1.1
Valid RSS SourceForge.net Logo