Package org.jfree.demo

Source Code of org.jfree.demo.TextBlockPanel

/* ========================================================================
* 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.]
*
* -------------------
* TextBlockPanel.java
* -------------------
* (C) Copyright 2004, by Object Refinery Limited.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   -;
*
* $Id: TextBlockPanel.java,v 1.3 2005/10/18 13:15:41 mungady Exp $
*
* Changes
* -------
* 07-Jan-2004 : Version 1;
*
*/

package org.jfree.demo;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.geom.Rectangle2D;

import javax.swing.JPanel;

import org.jfree.text.G2TextMeasurer;
import org.jfree.text.TextBlock;
import org.jfree.text.TextBlockAnchor;
import org.jfree.text.TextUtilities;

/**
* A panel used by the {@link DrawStringDemo} class.
*
* @author David Gilbert
*/
public class TextBlockPanel extends JPanel {

    /** The preferred size for the panel. */
    private static final Dimension PREFERRED_SIZE = new Dimension(500, 300);

    /** The text to display. */
    private String text;
   
    /** The font to use. */
    private Font font;

    /**
     * Creates a new panel.
     *
     * @param text  the text.
     * @param font  the font.
     */
    public TextBlockPanel(final String text, final Font font) {
        this.text = text;
        this.font = font;
    }

    /**
     * Returns the preferred size for the panel.
     *
     * @return The preferred size.
     */
    public Dimension getPreferredSize() {
        return PREFERRED_SIZE;
    }

    /**
     * Returns the font.
     *
     * @return The font.
     */
    public Font getFont() {
        return this.font;
    }

    /**
     * Sets the font.
     *
     * @param font  the font.
     */
    public void setFont(final Font font) {
        this.font = font;
    }

    /**
     * Paints the panel.
     *
     * @param g  the graphics device.
     */
    public void paintComponent(final Graphics g) {

        super.paintComponent(g);
        final Graphics2D g2 = (Graphics2D) g;

        final Dimension size = getSize();
        final Insets insets = getInsets();
        final Rectangle2D available = new Rectangle2D.Double(insets.left, insets.top,
                                      size.getWidth() - insets.left - insets.right,
                                      size.getHeight() - insets.top - insets.bottom);

        final double x = available.getX();
        final double y = available.getY();
        final float width = (float) available.getWidth();
        final TextBlock block = TextUtilities.createTextBlock(
            this.text, this.font, Color.black, width, new G2TextMeasurer(g2)
        );
        g2.setPaint(Color.black);
        block.draw(g2, (float) x, (float) y, TextBlockAnchor.TOP_LEFT, 0.0f, 0.0f, 0.0);

    }

}
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