1 /*
2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * This source code is provided to illustrate the usage of a given feature
34 * or technique and has been deliberately simplified. Additional steps
35 * required for a production-quality application, such as security checks,
36 * input validation and proper error handling, might not be present in
37 * this sample code.
38 */
39
40
41 /*
42 */
43
44 import java.awt.BorderLayout;
45 import java.awt.Font;
46 import java.awt.event.ActionEvent;
47 import java.awt.event.ActionListener;
48 import java.awt.event.ItemEvent;
49 import java.awt.event.ItemListener;
50
51 import javax.swing.*;
52
53 import java.util.*;
54 import java.util.regex.*;
55
56 /**
57 * RangeMenu.java
58 *
59 * @author Shinsuke Fukuda
60 * @author Ankit Patel [Conversion to Swing - 01/07/30]
61 */
62
63 /// Custom made choice menu that holds data for unicode range
64
65 public final class RangeMenu extends JComboBox implements ActionListener {
66
67 private static final int[][] UNICODE_RANGES = getUnicodeRanges();
68 private static final String[] UNICODE_RANGE_NAMES = getUnicodeRangeNames();
69
70 private boolean useCustomRange = false;
71 private int[] customRange = { 0x0000, 0x007f };
72
73 /// Custom range dialog variables
74 private final JDialog customRangeDialog;
75 private final JTextField customRangeStart = new JTextField( "0000", 4 );
76 private final JTextField customRangeEnd = new JTextField( "007F", 4 );
77 private final int CUSTOM_RANGE_INDEX = UNICODE_RANGE_NAMES.length - 1;
78
79 /// Parent Font2DTest Object holder
80 private final Font2DTest parent;
81
82 public static final int SURROGATES_AREA_INDEX = 91;
83
84 public RangeMenu( Font2DTest demo, JFrame f ) {
85 super();
86 parent = demo;
87
88 for ( int i = 0; i < UNICODE_RANGE_NAMES.length; i++ )
89 addItem( UNICODE_RANGE_NAMES[i] );
90
91 setSelectedIndex( 0 );
92 addActionListener( this );
93
94 /// Set up custom range dialog...
95 customRangeDialog = new JDialog( f, "Custom Unicode Range", true );
96 customRangeDialog.setResizable( false );
97
98 JPanel dialogTop = new JPanel();
99 JPanel dialogBottom = new JPanel();
100 JButton okButton = new JButton("OK");
101 JLabel from = new JLabel( "From:" );
102 JLabel to = new JLabel("To:");
103 Font labelFont = new Font( "dialog", Font.BOLD, 12 );
104 from.setFont( labelFont );
105 to.setFont( labelFont );
106 okButton.setFont( labelFont );
107
108 dialogTop.add( from );
109 dialogTop.add( customRangeStart );
110 dialogTop.add( to );
111 dialogTop.add( customRangeEnd );
112 dialogBottom.add( okButton );
113 okButton.addActionListener( this );
114
115 customRangeDialog.getContentPane().setLayout( new BorderLayout() );
116 customRangeDialog.getContentPane().add( "North", dialogTop );
117 customRangeDialog.getContentPane().add( "South", dialogBottom );
118 customRangeDialog.pack();
119 }
120
121 /// Return the range that is currently selected
122
123 public int[] getSelectedRange() {
124 if ( useCustomRange ) {
125 int startIndex, endIndex;
126 String startText, endText;
127 String empty = "";
128 try {
129 startText = customRangeStart.getText().trim();
130 endText = customRangeEnd.getText().trim();
131 if ( startText.equals(empty) && !endText.equals(empty) ) {
132 endIndex = Integer.parseInt( endText, 16 );
133 startIndex = endIndex - 7*25;
134 }
135 else if ( !startText.equals(empty) && endText.equals(empty) ) {
136 startIndex = Integer.parseInt( startText, 16 );
137 endIndex = startIndex + 7*25;
138 }
139 else {
140 startIndex = Integer.parseInt( customRangeStart.getText(), 16 );
141 endIndex = Integer.parseInt( customRangeEnd.getText(), 16 );
142 }
143 }
144 catch ( Exception e ) {
145 /// Error in parsing the hex number ---
146 /// Reset the range to what it was before and return that
147 customRangeStart.setText( Integer.toString( customRange[0], 16 ));
148 customRangeEnd.setText( Integer.toString( customRange[1], 16 ));
149 return customRange;
150 }
151
152 if ( startIndex < 0 )
153 startIndex = 0;
154 if ( endIndex > 0xffff )
155 endIndex = 0xffff;
156 if ( startIndex > endIndex )
157 startIndex = endIndex;
158
159 customRange[0] = startIndex;
160 customRange[1] = endIndex;
161 return customRange;
162 }
163 else
164 return UNICODE_RANGES[ getSelectedIndex() ];
165 }
166
167 /// Function used by loadOptions in Font2DTest main panel
168 /// to reset setting and range selection
169 public void setSelectedRange( String name, int start, int end ) {
170 setSelectedItem( name );
171 customRange[0] = start;
172 customRange[1] = end;
173 parent.fireRangeChanged();
174 }
175
176 /// ActionListener interface function
177 /// ABP
178 /// moved JComboBox event code into this fcn from
179 /// itemStateChanged() method. Part of change to Swing.
180 public void actionPerformed( ActionEvent e ) {
181 Object source = e.getSource();
182
183 if ( source instanceof JComboBox ) {
184 String rangeName = (String)((JComboBox)source).getSelectedItem();
185
186 if ( rangeName.equals("Custom...") ) {
187 useCustomRange = true;
188 customRangeDialog.setLocationRelativeTo(parent);
189 customRangeDialog.show();
190 }
191 else {
192 useCustomRange = false;
193 }
194 parent.fireRangeChanged();
195 }
196 else if ( source instanceof JButton ) {
197 /// Since it is only "OK" button that sends any action here...
198 customRangeDialog.hide();
199 }
200 }
201
202 private static int[][] getUnicodeRanges() {
203 List<Integer> ranges = new ArrayList<>();
204 ranges.add(0);
205 Character.UnicodeBlock currentBlock = Character.UnicodeBlock.of(0);
206 for (int cp = 0x000001; cp < 0x110000; cp++ ) {
207 Character.UnicodeBlock ub = Character.UnicodeBlock.of(cp);
208 if (currentBlock == null) {
209 if (ub != null) {
210 ranges.add(cp);
211 currentBlock = ub;
212 }
213 } else { // being in some unicode range
214 if (ub == null) {
215 ranges.add(cp - 1);
216 currentBlock = null;
217 } else if (cp == 0x10ffff) { // end of last block
218 ranges.add(cp);
219 } else if (! ub.equals(currentBlock)) {
220 ranges.add(cp - 1);
221 ranges.add(cp);
222 currentBlock = ub;
223 }
224 }
225 }
226 ranges.add(0x00); // for user defined range.
227 ranges.add(0x7f); // for user defined range.
228
229 int[][] returnval = new int[ranges.size() / 2][2];
230 for (int i = 0 ; i < ranges.size() / 2 ; i++ ) {
231 returnval[i][0] = ranges.get(2*i);
232 returnval[i][1] = ranges.get(2*i + 1);
233 }
234 return returnval;
235 }
236
237 private static String[] getUnicodeRangeNames() {
238 String[] names = new String[UNICODE_RANGES.length];
239 for (int i = 0 ; i < names.length ; i++ ) {
240 names[i] = titleCase(
241 Character.UnicodeBlock.of(UNICODE_RANGES[i][0]).toString());
242 }
243 names[names.length - 1] = "Custom...";
244 return names;
245 }
246
247 private static String titleCase(String str) {
248 str = str.replaceAll("_", " ");
249 Pattern p = Pattern.compile("(^|\\W)([a-z])");
250 Matcher m = p.matcher(str.toLowerCase(Locale.ROOT));
251 StringBuffer sb = new StringBuffer();
252 while (m.find()) {
253 m.appendReplacement(sb, m.group(1) + m.group(2).toUpperCase(Locale.ROOT));
254 }
255 m.appendTail(sb);
256 return sb.toString().replace("Cjk", "CJK").replace("Nko", "NKo");
257 }
258 }