/*
* Copyright (c) 2008 Stiftung Deutsches Elektronen-Synchrotron,
* Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
*
* THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
* WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
* IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
* CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
* NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
* DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
* OR MODIFICATIONS.
* THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
* USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
* PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
* AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
*/
package org.csstudio.sds.ui.internal.properties.view;
import org.eclipse.jface.viewers.LabelProvider;
/**
* An <code>ILabelProvider</code> that assists in rendering labels for
* <code>ComboBoxPropertyDescriptors</code>. The label for a given
* <code>Integer</code> value is the <code>String</code> at the value in
* the provided values array.
*
* @since 3.0
*
* @author Sven Wende
*/
public final class ComboBoxLabelProvider extends LabelProvider {
/**
* The array of String labels.
*/
private String[] _values;
/**
* @param values the possible label values that this
* <code>ILabelProvider</code> may return.
*/
public ComboBoxLabelProvider(final String[] values) {
_values = values;
}
/**
* @return the possible label values that this
* <code>ILabelProvider</code> may return.
*/
public String[] getValues() {
return _values;
}
/**
* @param values the possible label values that this
* <code>ILabelProvider</code> may return.
*/
public void setValues(final String[] values) {
this._values = values;
}
/**
* Returns the <code>String</code> that maps to the given
* <code>Integer</code> offset in the values array.
*
* @param element an <code>Integer</code> object whose value is a valid
* location within the values array of the receiver
* @return a <code>String</code> from the provided values array, or the
* empty <code>String</code>
* @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
*/
@Override
public String getText(final Object element) {
if (element == null) {
return ""; //$NON-NLS-1$
}
if (element instanceof Integer) {
int index = ((Integer) element).intValue();
if (index >= 0 && index < _values.length) {
return _values[index];
}
return ""; //$NON-NLS-1$
}
return ""; //$NON-NLS-1$
}
}