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//---PACKAGE DECLARATION--- |
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|
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//---IMPORTS--- |
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import javax.swing.JLabel; |
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import javax.swing.JTextField; |
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import java.awt.GridLayout; |
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|
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/** |
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* This is the most basic of DataComponents. |
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* |
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* It simply displays the value as a String |
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* in a JLabel. |
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* |
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* @author $Author: ajm4 $ |
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* @version $Id: StringDataComponent.java,v 1.3 2001/01/23 00:38:24 ajm4 Exp $ |
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*/ |
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public class StringDataComponent extends DataComponent { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.3 $"; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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/** |
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* Creates the component with a friendly name to be |
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* used as label |
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* |
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* @param name the friendly name |
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*/ |
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public StringDataComponent(String name) { |
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_label = new JLabel(name + ": "); |
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_label.setHorizontalAlignment(JLabel.RIGHT); |
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setLayout(new GridLayout(1, 2)); |
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add(_label); |
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add(_item); |
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} |
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|
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//---PUBLIC METHODS--- |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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/** |
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* This takes the String value of the parameter that this component |
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* is monitoring direct from the packet, it then performs all |
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* approriate conversions and displays the data. |
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* |
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* @param value the value for this data component |
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* @throws DataFormatException if there was a problem converting the data for display |
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*/ |
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public void setValue(String value) throws DataFormatException { |
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try { |
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if(!_cache.equals(value)) { |
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_cache = value; |
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_item.setText(value); |
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} |
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} catch (Exception e) { |
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throw new DataFormatException("invalid data type for component"); |
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} |
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} |
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|
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//---ATTRIBUTES--- |
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|
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/** |
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* The friendly label for this component |
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*/ |
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protected JLabel _label; |
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|
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String _cache = ""; |
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|
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protected int _displayLength = 20; |
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|
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/** |
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* Just a normal label to display our value as a String |
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*/ |
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protected JTextField _item = new JTextField("", _displayLength); |
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{ |
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_item.setEditable(false); |
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} |
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|
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//---STATIC ATTRIBUTES--- |
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|
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} |
