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*
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
/*
*/
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.*;
import java.util.*;
import java.util.regex.*;
/**
* RangeMenu.java
*
* @author Shinsuke Fukuda
* @author Ankit Patel [Conversion to Swing - 01/07/30]
*/
/// Custom made choice menu that holds data for unicode range
public final class RangeMenu extends JComboBox implements ActionListener {
private static final int[][] UNICODE_RANGES = getUnicodeRanges();
private static final String[] UNICODE_RANGE_NAMES = getUnicodeRangeNames();
private boolean useCustomRange = false;
private int[] customRange = { 0x0000, 0x007f };
/// Custom range dialog variables
private final JDialog customRangeDialog;
private final JTextField customRangeStart = new JTextField( "0000", 4 );
private final JTextField customRangeEnd = new JTextField( "007F", 4 );
private final int CUSTOM_RANGE_INDEX = UNICODE_RANGE_NAMES.length - 1;
/// Parent Font2DTest Object holder
private final Font2DTest parent;
public static final int SURROGATES_AREA_INDEX = 91;
public RangeMenu( Font2DTest demo, JFrame f ) {
super();
parent = demo;
for ( int i = 0; i < UNICODE_RANGE_NAMES.length; i++ )
addItem( UNICODE_RANGE_NAMES[i] );
setSelectedIndex( 0 );
addActionListener( this );
/// Set up custom range dialog...
customRangeDialog = new JDialog( f, "Custom Unicode Range", true );
customRangeDialog.setResizable( false );
JPanel dialogTop = new JPanel();
JPanel dialogBottom = new JPanel();
JButton okButton = new JButton("OK");
JLabel from = new JLabel( "From:" );
JLabel to = new JLabel("To:");
Font labelFont = new Font( "dialog", Font.BOLD, 12 );
from.setFont( labelFont );
to.setFont( labelFont );
okButton.setFont( labelFont );
dialogTop.add( from );
dialogTop.add( customRangeStart );
dialogTop.add( to );
dialogTop.add( customRangeEnd );
dialogBottom.add( okButton );
okButton.addActionListener( this );
customRangeDialog.getContentPane().setLayout( new BorderLayout() );
customRangeDialog.getContentPane().add( "North", dialogTop );
customRangeDialog.getContentPane().add( "South", dialogBottom );
customRangeDialog.pack();
}
/// Return the range that is currently selected
public int[] getSelectedRange() {
if ( useCustomRange ) {
int startIndex, endIndex;
String startText, endText;
String empty = "";
try {
startText = customRangeStart.getText().trim();
endText = customRangeEnd.getText().trim();
if ( startText.equals(empty) && !endText.equals(empty) ) {
endIndex = Integer.parseInt( endText, 16 );
startIndex = endIndex - 7*25;
}
else if ( !startText.equals(empty) && endText.equals(empty) ) {
startIndex = Integer.parseInt( startText, 16 );
endIndex = startIndex + 7*25;
}
else {
startIndex = Integer.parseInt( customRangeStart.getText(), 16 );
endIndex = Integer.parseInt( customRangeEnd.getText(), 16 );
}
}
catch ( Exception e ) {
/// Error in parsing the hex number ---
/// Reset the range to what it was before and return that
customRangeStart.setText( Integer.toString( customRange[0], 16 ));
customRangeEnd.setText( Integer.toString( customRange[1], 16 ));
return customRange;
}
if ( startIndex < 0 )
startIndex = 0;
if ( endIndex > 0xffff )
endIndex = 0xffff;
if ( startIndex > endIndex )
startIndex = endIndex;
customRange[0] = startIndex;
customRange[1] = endIndex;
return customRange;
}
else
return UNICODE_RANGES[ getSelectedIndex() ];
}
/// Function used by loadOptions in Font2DTest main panel
/// to reset setting and range selection
public void setSelectedRange( String name, int start, int end ) {
setSelectedItem( name );
customRange[0] = start;
customRange[1] = end;
parent.fireRangeChanged();
}
/// ActionListener interface function
/// ABP
/// moved JComboBox event code into this fcn from
/// itemStateChanged() method. Part of change to Swing.
public void actionPerformed( ActionEvent e ) {
Object source = e.getSource();
if ( source instanceof JComboBox ) {
String rangeName = (String)((JComboBox)source).getSelectedItem();
if ( rangeName.equals("Custom...") ) {
useCustomRange = true;
customRangeDialog.setLocationRelativeTo(parent);
customRangeDialog.show();
}
else {
useCustomRange = false;
}
parent.fireRangeChanged();
}
else if ( source instanceof JButton ) {
/// Since it is only "OK" button that sends any action here...
customRangeDialog.hide();
}
}
private static int[][] getUnicodeRanges() {
List<Integer> ranges = new ArrayList<>();
ranges.add(0);
Character.UnicodeBlock currentBlock = Character.UnicodeBlock.of(0);
for (int cp = 0x000001; cp < 0x110000; cp++ ) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(cp);
if (currentBlock == null) {
if (ub != null) {
ranges.add(cp);
currentBlock = ub;
}
} else { // being in some unicode range
if (ub == null) {
ranges.add(cp - 1);
currentBlock = null;
} else if (cp == 0x10ffff) { // end of last block
ranges.add(cp);
} else if (! ub.equals(currentBlock)) {
ranges.add(cp - 1);
ranges.add(cp);
currentBlock = ub;
}
}
}
ranges.add(0x00); // for user defined range.
ranges.add(0x7f); // for user defined range.
int[][] returnval = new int[ranges.size() / 2][2];
for (int i = 0 ; i < ranges.size() / 2 ; i++ ) {
returnval[i][0] = ranges.get(2*i);
returnval[i][1] = ranges.get(2*i + 1);
}
return returnval;
}
private static String[] getUnicodeRangeNames() {
String[] names = new String[UNICODE_RANGES.length];
for (int i = 0 ; i < names.length ; i++ ) {
names[i] = titleCase(
Character.UnicodeBlock.of(UNICODE_RANGES[i][0]).toString());
}
names[names.length - 1] = "Custom...";
return names;
}
private static String titleCase(String str) {
str = str.replaceAll("_", " ");
Pattern p = Pattern.compile("(^|\\W)([a-z])");
Matcher m = p.matcher(str.toLowerCase(Locale.ROOT));
StringBuffer sb = new StringBuffer();
while (m.find()) {
m.appendReplacement(sb, m.group(1) + m.group(2).toUpperCase(Locale.ROOT));
}
m.appendTail(sb);
return sb.toString().replace("Cjk", "CJK").replace("Nko", "NKo");
}
}