/*******************************************************************************
* This file is part of Goko.
*
* Goko is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Goko is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Goko. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
package org.goko.common.elements.combo.v2;
import java.util.List;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.widgets.Composite;
import org.goko.common.GkUiUtils;
import org.goko.common.elements.combo.LabeledValue;
import org.goko.core.common.exception.GkException;
import org.goko.core.log.GkLog;
public class GkCombo2<T> extends ComboViewer {
private static final GkLog LOG = GkLog.getLogger(GkCombo2.class);
public GkCombo2(Composite parent, int style) {
super(parent, style);
setContentProvider(new GkComboContentProvider());
setLabelProvider(new GkComboLabelProvider<T>(this));
}
/**
* @return the choices
*/
public List<LabeledValue<T>> getChoices() {
return (List<LabeledValue<T>>) getInput();
}
@Override
public void setSelection(ISelection selection) {
if(!selection.isEmpty()){
T val = (T) ((IStructuredSelection)selection).getFirstElement();
try {
LabeledValue<T> lVal = GkUiUtils.getLabelledValueByKey(val, getChoices());
super.setSelection(new StructuredSelection(lVal));
} catch (GkException e) {
LOG.error(e);
}
}
}
/** (inheritDoc)
* @see org.eclipse.jface.viewers.StructuredViewer#setSelection(org.eclipse.jface.viewers.ISelection, boolean)
*/
@Override
public void setSelection(ISelection selection, boolean reveal) {
if(!selection.isEmpty()){
T val = (T) ((IStructuredSelection)selection).getFirstElement();
try {
LabeledValue<T> lVal = GkUiUtils.getLabelledValueByKey(val, getChoices());
super.setSelection(new StructuredSelection(lVal), reveal);
} catch (GkException e) {
LOG.error(e);
}
}
super.setSelection(selection, reveal);
}
@Override
public ISelection getSelection() {
IStructuredSelection selection = (IStructuredSelection) super.getSelection();
LabeledValue<?> firstElement = (LabeledValue<?>) selection.getFirstElement();
if(firstElement != null){
return new StructuredSelection(firstElement.getValue());
}else{
return new StructuredSelection();
}
}
}