1 /*

     2  * Copyright (c) 1996, 2009, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package sun.beans.editors;

    27 

    28 import java.awt.*;

    29 import java.beans.*;

    30 

    31 public class FontEditor extends Panel implements java.beans.PropertyEditor {

    32     private static final long serialVersionUID = 6732704486002715933L;

    33 

    34     public FontEditor() {

    35         setLayout(null);

    36 

    37         toolkit = Toolkit.getDefaultToolkit();

    38         fonts = toolkit.getFontList();

    39 

    40         familyChoser = new Choice();

    41         for (int i = 0; i < fonts.length; i++) {

    42             familyChoser.addItem(fonts[i]);

    43         }

    44         add(familyChoser);

    45         familyChoser.reshape(20, 5, 100, 30);

    46 

    47         styleChoser = new Choice();

    48         for (int i = 0; i < styleNames.length; i++) {

    49             styleChoser.addItem(styleNames[i]);

    50         }

    51         add(styleChoser);

    52         styleChoser.reshape(145, 5, 70, 30);

    53 

    54         sizeChoser = new Choice();

    55         for (int i = 0; i < pointSizes.length; i++) {

    56             sizeChoser.addItem("" + pointSizes[i]);

    57         }

    58         add(sizeChoser);

    59         sizeChoser.reshape(220, 5, 70, 30);

    60 

    61         resize(300,40);

    62     }

    63 

    64 

    65     public Dimension preferredSize() {

    66         return new Dimension(300, 40);

    67     }

    68 

    69     public void setValue(Object o) {

    70         font = (Font) o;

    71         if (this.font == null)

    72             return;

    73 

    74         changeFont(font);

    75         // Update the current GUI choices.

    76         for (int i = 0; i < fonts.length; i++) {

    77             if (fonts[i].equals(font.getFamily())) {

    78                 familyChoser.select(i);

    79                 break;

    80             }

    81         }

    82         for (int i = 0; i < styleNames.length; i++) {

    83             if (font.getStyle() == styles[i]) {

    84                 styleChoser.select(i);

    85                 break;

    86             }

    87         }

    88         for (int i = 0; i < pointSizes.length; i++) {

    89             if (font.getSize() <= pointSizes[i]) {

    90                 sizeChoser.select(i);

    91                 break;

    92             }

    93         }

    94     }

    95 

    96     private void changeFont(Font f) {

    97         font = f;

    98         if (sample != null) {

    99             remove(sample);

   100         }

   101         sample = new Label(sampleText);

   102         sample.setFont(font);

   103         add(sample);

   104         Component p = getParent();

   105         if (p != null) {

   106             p.invalidate();

   107             p.layout();

   108         }

   109         invalidate();

   110         layout();

   111         repaint();

   112         support.firePropertyChange("", null, null);

   113     }

   114 

   115     public Object getValue() {

   116         return (font);

   117     }

   118 

   119     public String getJavaInitializationString() {

   120         if (this.font == null)

   121             return "null";

   122 

   123         return "new java.awt.Font(\"" + font.getName() + "\", " +

   124                    font.getStyle() + ", " + font.getSize() + ")";

   125     }

   126 

   127     public boolean action(Event e, Object arg) {

   128         String family = familyChoser.getSelectedItem();

   129         int style = styles[styleChoser.getSelectedIndex()];

   130         int size = pointSizes[sizeChoser.getSelectedIndex()];

   131         try {

   132             Font f = new Font(family, style, size);

   133             changeFont(f);

   134         } catch (Exception ex) {

   135             System.err.println("Couldn't create font " + family + "-" +

   136                         styleNames[style] + "-" + size);

   137         }

   138         return (false);

   139     }

   140 

   141 

   142     public boolean isPaintable() {

   143         return true;

   144     }

   145 

   146     public void paintValue(java.awt.Graphics gfx, java.awt.Rectangle box) {

   147         // Silent noop.

   148         Font oldFont = gfx.getFont();

   149         gfx.setFont(font);

   150         FontMetrics fm = gfx.getFontMetrics();

   151         int vpad = (box.height - fm.getAscent())/2;

   152         gfx.drawString(sampleText, 0, box.height-vpad);

   153         gfx.setFont(oldFont);

   154     }

   155 

   156     public String getAsText() {

   157         if (this.font == null) {

   158             return null;

   159         }

   160         StringBuilder sb = new StringBuilder();

   161         sb.append(this.font.getName());

   162         sb.append(' ');

   163 

   164         boolean b = this.font.isBold();

   165         if (b) {

   166             sb.append("BOLD");

   167         }

   168         boolean i = this.font.isItalic();

   169         if (i) {

   170             sb.append("ITALIC");

   171         }

   172         if (b || i) {

   173             sb.append(' ');

   174         }

   175         sb.append(this.font.getSize());

   176         return sb.toString();

   177     }

   178 

   179     public void setAsText(String text) throws IllegalArgumentException {

   180         setValue((text == null) ? null : Font.decode(text));

   181     }

   182 

   183     public String[] getTags() {

   184         return null;

   185     }

   186 

   187     public java.awt.Component getCustomEditor() {

   188         return this;

   189     }

   190 

   191     public boolean supportsCustomEditor() {

   192         return true;

   193     }

   194 

   195     public void addPropertyChangeListener(PropertyChangeListener l) {

   196         support.addPropertyChangeListener(l);

   197     }

   198 

   199     public void removePropertyChangeListener(PropertyChangeListener l) {

   200         support.removePropertyChangeListener(l);

   201     }

   202 

   203     private Font font;

   204     private Toolkit toolkit;

   205     private String sampleText = "Abcde...";

   206 

   207     private Label sample;

   208     private Choice familyChoser;

   209     private Choice styleChoser;

   210     private Choice sizeChoser;

   211 

   212     private String fonts[];

   213     private String[] styleNames = { "plain", "bold", "italic" };

   214     private int[] styles = { Font.PLAIN, Font.BOLD, Font.ITALIC };

   215     private int[] pointSizes = { 3, 5, 8, 10, 12, 14, 18, 24, 36, 48 };

   216 

   217     private PropertyChangeSupport support = new PropertyChangeSupport(this);

   218 

   219 }