001    /* ========================================================================
002     * JCommon : a free general purpose class library for the Java(tm) platform
003     * ========================================================================
004     *
005     * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
006     *
007     * Project Info:  http://www.jfree.org/jcommon/index.html
008     *
009     * This library is free software; you can redistribute it and/or modify it
010     * under the terms of the GNU Lesser General Public License as published by
011     * the Free Software Foundation; either version 2.1 of the License, or
012     * (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but
015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017     * License for more details.
018     *
019     * You should have received a copy of the GNU Lesser General Public
020     * License along with this library; if not, write to the Free Software
021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
022     * USA.
023     *
024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025     * in the United States and other countries.]
026     *
027     * ---------------------
028     * FontChooserPanel.java
029     * ---------------------
030     * (C) Copyright 2000-2008, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   Arnaud Lelievre;
034     *
035     * $Id: FontChooserPanel.java,v 1.6 2008/12/18 09:57:32 mungady Exp $
036     *
037     * Changes (from 26-Oct-2001)
038     * --------------------------
039     * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
040     * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
041     * 08-Sep-2003 : Added internationalization via use of properties resourceBundle (RFE 690236) (AL);
042     * 21-Feb-2004 : The FontParameter of the constructor was never used (TM);
043     * 18-Dec-2008 : Use ResourceBundleWrapper - see JFreeChart patch 1607918 by
044     *               Jess Thrysoee (DG);
045     *
046     */
047    
048    package org.jfree.ui;
049    
050    import java.awt.BorderLayout;
051    import java.awt.Font;
052    import java.awt.GraphicsEnvironment;
053    import java.awt.GridLayout;
054    import java.util.ResourceBundle;
055    
056    import javax.swing.BorderFactory;
057    import javax.swing.JCheckBox;
058    import javax.swing.JList;
059    import javax.swing.JPanel;
060    import javax.swing.JScrollPane;
061    import javax.swing.ListModel;
062    
063    import org.jfree.util.ResourceBundleWrapper;
064    
065    /**
066     * A panel for choosing a font from the available system fonts - still a bit of
067     * a hack at the moment, but good enough for demonstration applications.
068     *
069     * @author David Gilbert
070     */
071    public class FontChooserPanel extends JPanel {
072    
073        /** The font sizes that can be selected. */
074        public static final String[] SIZES = {"9", "10", "11", "12", "14", "16",
075                "18", "20", "22", "24", "28", "36", "48", "72"};
076    
077        /** The list of fonts. */
078        private JList fontlist;
079    
080        /** The list of sizes. */
081        private JList sizelist;
082    
083        /** The checkbox that indicates whether the font is bold. */
084        private JCheckBox bold;
085    
086        /** The checkbox that indicates whether or not the font is italic. */
087        private JCheckBox italic;
088    
089        /** The resourceBundle for the localization. */
090        protected static ResourceBundle localizationResources =
091            ResourceBundleWrapper.getBundle("org.jfree.ui.LocalizationBundle");
092    
093        /**
094         * Standard constructor - builds a FontChooserPanel initialised with the
095         * specified font.
096         *
097         * @param font  the initial font to display.
098         */
099        public FontChooserPanel(final Font font) {
100    
101            final GraphicsEnvironment g
102                    = GraphicsEnvironment.getLocalGraphicsEnvironment();
103            final String[] fonts = g.getAvailableFontFamilyNames();
104    
105            setLayout(new BorderLayout());
106            final JPanel right = new JPanel(new BorderLayout());
107    
108            final JPanel fontPanel = new JPanel(new BorderLayout());
109            fontPanel.setBorder(BorderFactory.createTitledBorder(
110                                BorderFactory.createEtchedBorder(),
111                                localizationResources.getString("Font")));
112            this.fontlist = new JList(fonts);
113            final JScrollPane fontpane = new JScrollPane(this.fontlist);
114            fontpane.setBorder(BorderFactory.createEtchedBorder());
115            fontPanel.add(fontpane);
116            add(fontPanel);
117    
118            final JPanel sizePanel = new JPanel(new BorderLayout());
119            sizePanel.setBorder(BorderFactory.createTitledBorder(
120                                BorderFactory.createEtchedBorder(),
121                                localizationResources.getString("Size")));
122            this.sizelist = new JList(SIZES);
123            final JScrollPane sizepane = new JScrollPane(this.sizelist);
124            sizepane.setBorder(BorderFactory.createEtchedBorder());
125            sizePanel.add(sizepane);
126    
127            final JPanel attributes = new JPanel(new GridLayout(1, 2));
128            this.bold = new JCheckBox(localizationResources.getString("Bold"));
129            this.italic = new JCheckBox(localizationResources.getString("Italic"));
130            attributes.add(this.bold);
131            attributes.add(this.italic);
132            attributes.setBorder(BorderFactory.createTitledBorder(
133                    BorderFactory.createEtchedBorder(),
134                    localizationResources.getString("Attributes")));
135    
136            right.add(sizePanel, BorderLayout.CENTER);
137            right.add(attributes, BorderLayout.SOUTH);
138    
139            add(right, BorderLayout.EAST);
140    
141            setSelectedFont(font);
142        }
143    
144        /**
145         * Returns a Font object representing the selection in the panel.
146         *
147         * @return the font.
148         */
149        public Font getSelectedFont() {
150            return new Font(getSelectedName(), getSelectedStyle(),
151                    getSelectedSize());
152        }
153    
154        /**
155         * Returns the selected name.
156         *
157         * @return the name.
158         */
159        public String getSelectedName() {
160            return (String) this.fontlist.getSelectedValue();
161        }
162    
163        /**
164         * Returns the selected style.
165         *
166         * @return the style.
167         */
168        public int getSelectedStyle() {
169            if (this.bold.isSelected() && this.italic.isSelected()) {
170                return Font.BOLD + Font.ITALIC;
171            }
172            if (this.bold.isSelected()) {
173                return Font.BOLD;
174            }
175            if (this.italic.isSelected()) {
176                return Font.ITALIC;
177            }
178            else {
179                return Font.PLAIN;
180            }
181        }
182    
183        /**
184         * Returns the selected size.
185         *
186         * @return the size.
187         */
188        public int getSelectedSize() {
189            final String selected = (String) this.sizelist.getSelectedValue();
190            if (selected != null) {
191                return Integer.parseInt(selected);
192            }
193            else {
194                return 10;
195            }
196        }
197    
198        /**
199         * Initializes the contents of the dialog from the given font
200         * object.
201         *
202         * @param font the font from which to read the properties.
203         */
204        public void setSelectedFont (final Font font) {
205            if (font == null) {
206                throw new NullPointerException();
207            }
208            this.bold.setSelected(font.isBold());
209            this.italic.setSelected(font.isItalic());
210    
211            final String fontName = font.getName();
212            ListModel model = this.fontlist.getModel();
213            this.fontlist.clearSelection();
214            for (int i = 0; i < model.getSize(); i++) {
215                if (fontName.equals(model.getElementAt(i))) {
216                    this.fontlist.setSelectedIndex(i);
217                    break;
218                }
219            }
220    
221            final String fontSize = String.valueOf(font.getSize());
222            model = this.sizelist.getModel();
223            this.sizelist.clearSelection();
224            for (int i = 0; i < model.getSize(); i++) {
225                if (fontSize.equals(model.getElementAt(i))) {
226                    this.sizelist.setSelectedIndex(i);
227                    break;
228                }
229            }
230        }
231    }