001    /* ========================================================================
002     * JCommon : a free general purpose class library for the Java(tm) platform
003     * ========================================================================
004     *
005     * (C) Copyright 2000-2005, 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 2000-2004, 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 1.4 2005/11/16 15:58:41 taqua 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     */
044    
045    package org.jfree.ui;
046    
047    import java.awt.BorderLayout;
048    import java.awt.Font;
049    import java.awt.GraphicsEnvironment;
050    import java.awt.GridLayout;
051    import java.util.ResourceBundle;
052    
053    import javax.swing.BorderFactory;
054    import javax.swing.JCheckBox;
055    import javax.swing.JList;
056    import javax.swing.JPanel;
057    import javax.swing.JScrollPane;
058    import javax.swing.ListModel;
059    
060    /**
061     * A panel for choosing a font from the available system fonts - still a bit of a hack at the
062     * moment, but good enough for demonstration applications.
063     *
064     * @author David Gilbert
065     */
066    public class FontChooserPanel extends JPanel {
067    
068        /** The font sizes that can be selected. */
069        public static final String[] SIZES = {"9", "10", "11", "12", "14", "16", "18",
070                                              "20", "22", "24", "28", "36", "48", "72"};
071    
072        /** The list of fonts. */
073        private JList fontlist;
074    
075        /** The list of sizes. */
076        private JList sizelist;
077    
078        /** The checkbox that indicates whether the font is bold. */
079        private JCheckBox bold;
080    
081        /** The checkbox that indicates whether or not the font is italic. */
082        private JCheckBox italic;
083    
084        /** The resourceBundle for the localization. */
085        protected static ResourceBundle localizationResources = 
086            ResourceBundle.getBundle("org.jfree.ui.LocalizationBundle");
087    
088        /**
089         * Standard constructor - builds a FontChooserPanel initialised with the specified font.
090         *
091         * @param font  the initial font to display.
092         */
093        public FontChooserPanel(final Font font) {
094    
095            final GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnvironment();
096            final String[] fonts = g.getAvailableFontFamilyNames();
097    
098            setLayout(new BorderLayout());
099            final JPanel right = new JPanel(new BorderLayout());
100    
101            final JPanel fontPanel = new JPanel(new BorderLayout());
102            fontPanel.setBorder(BorderFactory.createTitledBorder(
103                                BorderFactory.createEtchedBorder(), 
104                                localizationResources.getString("Font")));
105            this.fontlist = new JList(fonts);
106            final JScrollPane fontpane = new JScrollPane(this.fontlist);
107            fontpane.setBorder(BorderFactory.createEtchedBorder());
108            fontPanel.add(fontpane);
109            add(fontPanel);
110    
111            final JPanel sizePanel = new JPanel(new BorderLayout());
112            sizePanel.setBorder(BorderFactory.createTitledBorder(
113                                BorderFactory.createEtchedBorder(), 
114                                localizationResources.getString("Size")));
115            this.sizelist = new JList(SIZES);
116            final JScrollPane sizepane = new JScrollPane(this.sizelist);
117            sizepane.setBorder(BorderFactory.createEtchedBorder());
118            sizePanel.add(sizepane);
119    
120            final JPanel attributes = new JPanel(new GridLayout(1, 2));
121            this.bold = new JCheckBox(localizationResources.getString("Bold"));
122            this.italic = new JCheckBox(localizationResources.getString("Italic"));
123            attributes.add(this.bold);
124            attributes.add(this.italic);
125            attributes.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),
126                                 localizationResources.getString("Attributes")));
127    
128            right.add(sizePanel, BorderLayout.CENTER);
129            right.add(attributes, BorderLayout.SOUTH);
130    
131            add(right, BorderLayout.EAST);
132    
133            setSelectedFont(font);
134        }
135    
136        /**
137         * Returns a Font object representing the selection in the panel.
138         *
139         * @return the font.
140         */
141        public Font getSelectedFont() {
142            return new Font(getSelectedName(), getSelectedStyle(), getSelectedSize());
143        }
144    
145        /**
146         * Returns the selected name.
147         *
148         * @return the name.
149         */
150        public String getSelectedName() {
151            return (String) this.fontlist.getSelectedValue();
152        }
153    
154        /**
155         * Returns the selected style.
156         *
157         * @return the style.
158         */
159        public int getSelectedStyle() {
160            if (this.bold.isSelected() && this.italic.isSelected()) {
161                return Font.BOLD + Font.ITALIC;
162            }
163            if (this.bold.isSelected()) {
164                return Font.BOLD;
165            }
166            if (this.italic.isSelected()) {
167                return Font.ITALIC;
168            }
169            else {
170                return Font.PLAIN;
171            }
172        }
173    
174        /**
175         * Returns the selected size.
176         *
177         * @return the size.
178         */
179        public int getSelectedSize() {
180            final String selected = (String) this.sizelist.getSelectedValue();
181            if (selected != null) {
182                return Integer.parseInt(selected);
183            }
184            else {
185                return 10;
186            }
187        }
188    
189        /**
190         * Initializes the contents of the dialog from the given font
191         * object.
192         *
193         * @param font the font from which to read the properties.
194         */
195        public void setSelectedFont (final Font font) {
196            if (font == null) {
197                throw new NullPointerException();
198            }
199            this.bold.setSelected(font.isBold());
200            this.italic.setSelected(font.isItalic());
201    
202            final String fontName = font.getName();
203            ListModel model = this.fontlist.getModel();
204            this.fontlist.clearSelection();
205            for (int i = 0; i < model.getSize(); i++) {
206                if (fontName.equals(model.getElementAt(i))) {
207                    this.fontlist.setSelectedIndex(i);
208                    break;
209                }
210            }
211    
212            final String fontSize = String.valueOf(font.getSize());
213            model = this.sizelist.getModel();
214            this.sizelist.clearSelection();
215            for (int i = 0; i < model.getSize(); i++) {
216                if (fontSize.equals(model.getElementAt(i))) {
217                    this.sizelist.setSelectedIndex(i);
218                    break;
219                }
220            }
221        }
222    }