RangeMenupublic final class RangeMenu extends JComboBox implements ActionListener
| Fields Summary |
|---|
| private final int[] | UNICODE_RANGES | | private final String[] | UNICODE_RANGE_NAMES | | private boolean | useCustomRange | | private int[] | customRange | | private final JDialog | customRangeDialog | | private final JTextField | customRangeStart | | private final JTextField | customRangeEnd | | private final int | CUSTOM_RANGE_INDEX | | private final Font2DTest | parent |
| Constructors Summary |
|---|
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();
|
| Methods Summary |
|---|
| public void | actionPerformed(java.awt.event.ActionEvent e)
Object source = e.getSource();
if ( source instanceof JComboBox ) {
String rangeName = (String)((JComboBox)source).getSelectedItem();
if ( rangeName.equals("Other...") ) {
useCustomRange = true;
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();
}
| | 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() ];
| | public void | setSelectedRange(java.lang.String name, int start, int end)
setSelectedItem( name );
customRange[0] = start;
customRange[1] = end;
parent.fireRangeChanged();
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