fontchooserdialog.java

来自「JfreeChart 常用图表例子」· Java 代码 · 共 120 行

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2004, 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., 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.]
 * 
 * ----------------------
 * FontChooserDialog.java
 * ----------------------
 * (C) Copyright 2000-2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: FontChooserDialog.java,v 1.2 2005/06/01 14:12:29 taqua Exp $
 *
 * Changes (from 26-Oct-2001)
 * --------------------------
 * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
 * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 *
 */

package org.jfree.ui;

import java.awt.BorderLayout;
import java.awt.Dialog;
import java.awt.Font;
import java.awt.Frame;

import javax.swing.BorderFactory;
import javax.swing.JPanel;

/**
 * A dialog for choosing a font from the available system fonts.
 *
 * @author David Gilbert
 */
public class FontChooserDialog extends StandardDialog {

    /** The panel within the dialog that contains the font selection controls. */
    private FontChooserPanel fontChooserPanel;

    /**
     * Standard constructor - builds a font chooser dialog owned by another dialog.
     *
     * @param owner  the dialog that 'owns' this dialog.
     * @param title  the title for the dialog.
     * @param modal  a boolean that indicates whether or not the dialog is modal.
     * @param font  the initial font displayed.
     */
    public FontChooserDialog(final Dialog owner, final String title, final boolean modal, final Font font) {
        super(owner, title, modal);
        setContentPane(createContent(font));
    }

    /**
     * Standard constructor - builds a font chooser dialog owned by a frame.
     *
     * @param owner  the frame that 'owns' this dialog.
     * @param title  the title for the dialog.
     * @param modal  a boolean that indicates whether or not the dialog is modal.
     * @param font  the initial font displayed.
     */
    public FontChooserDialog(final Frame owner, final String title, final boolean modal, final Font font) {
        super(owner, title, modal);
        setContentPane(createContent(font));
    }

    /**
     * Returns the selected font.
     *
     * @return the font.
     */
    public Font getSelectedFont() {
        return this.fontChooserPanel.getSelectedFont();
    }

    /**
     * Returns the panel that is the user interface.
     *
     * @param font  the font.
     *
     * @return the panel.
     */
    private JPanel createContent(Font font) {
        final JPanel content = new JPanel(new BorderLayout());
        content.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
        if (font == null) {
            font = new Font("Dialog", 10, Font.PLAIN);
        }
        this.fontChooserPanel = new FontChooserPanel(font);
        content.add(this.fontChooserPanel);

        final JPanel buttons = createButtonPanel();
        buttons.setBorder(BorderFactory.createEmptyBorder(4, 0, 0, 0));
        content.add(buttons, BorderLayout.SOUTH);

        return content;
    }

}