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TableViewerColumnBuilder.java
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TableViewerColumnBuilder.java
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/*******************************************************************************
* Copyright (c) 2013 RCP Vision (http://www.rcp-vision.com) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Lorenzo Bettini - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.parsley.viewers;
import java.util.List;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.parsley.EmfParsleyConstants;
import org.eclipse.emf.parsley.internal.viewers.GenericFeatureViewerComparator;
import org.eclipse.emf.parsley.ui.provider.FeatureCaptionProvider;
import org.eclipse.emf.parsley.ui.provider.TableFeaturesProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Layout;
import org.eclipse.swt.widgets.TableColumn;
import com.google.inject.Inject;
import com.google.inject.name.Named;
/**
* Sets the columns of a TableViewer according to an EClass (adds a column for
* each feature of the EClass, retrieved using an injected
* {@link TableFeaturesProvider}).
*
* @author Lorenzo Bettini - initial API and implementation
* @author Francesco Guidieri - Sorting
*/
public class TableViewerColumnBuilder {
@Inject
@Named(EmfParsleyConstants.DEFAULT_TABLE_COLUMN_WEIGHT)
private int defaultWeight;
@Inject
@Named(EmfParsleyConstants.TABLE_COLUMN_WEIGHTS)
private List<Integer> weights;
@Inject
private ColumnLabelProviderFactory columnLabelProviderFactory;
@Inject
private FeatureCaptionProvider featureCaptionProvider;
@Inject
private TableFeaturesProvider featuresProvider;
@Inject
private LayoutHelper layoutHelper;
@Inject
private GenericFeatureViewerComparator viewerComparator;
/**
* Setups the columns of the given tableViewer using the features of the
* given eClass; the features are retrieved using an injected
* {@link TableFeaturesProvider}.
*
* @param tableViewer
* @param eClass
* @param contentProvider
*/
public void buildTableViewer(TableViewer tableViewer, EClass eClass) {
Layout layout = layoutHelper.adjustForTableLayout(tableViewer);
List<EStructuralFeature> typeFeatures = featuresProvider.getFeatures(eClass);
int i = 0;
int columnIndex = 0;
tableViewer.setComparator(viewerComparator);
viewerComparator.init(typeFeatures);
for (EStructuralFeature eStructuralFeature : typeFeatures) {
int weight = defaultWeight;
if (weights.size() > i) {
weight = weights.get(i++);
}
buildTableViewerColumn(tableViewer, layout, eClass,
eStructuralFeature, weight, columnIndex++);
}
}
protected TableViewerColumn buildTableViewerColumn(TableViewer tableViewer, Layout layout, EClass eClass,
EStructuralFeature eStructuralFeature, int weight) {
TableViewerColumn viewerColumn = createTableViewerColumn(tableViewer, eStructuralFeature);
TableColumn objectColumn = viewerColumn.getColumn();
layoutHelper.adjustLayoutColumnData(layout, objectColumn, weight);
objectColumn.setText(featureCaptionProvider.getText(eClass, eStructuralFeature));
objectColumn.setResizable(true);
return viewerColumn;
}
/**
* @since 1.1
*/
protected TableViewerColumn buildTableViewerColumn(TableViewer tableViewer, Layout layout, EClass eClass,
EStructuralFeature eStructuralFeature, int weight, int colNumber) {
TableViewerColumn viewerColumn = buildTableViewerColumn(tableViewer, layout, eClass, eStructuralFeature, weight);
TableColumn objectColumn = viewerColumn.getColumn();
objectColumn.addSelectionListener(getSelectionAdapter(tableViewer, objectColumn, colNumber));
return viewerColumn;
}
protected TableViewerColumn createTableViewerColumn(
TableViewer tableViewer, EStructuralFeature eStructuralFeature) {
TableViewerColumn tableViewerColumn = new TableViewerColumn(
tableViewer, SWT.NONE);
tableViewerColumn.setLabelProvider(columnLabelProviderFactory
.createColumnLabelProvider(eStructuralFeature));
return tableViewerColumn;
}
private SelectionAdapter getSelectionAdapter(final TableViewer viewer, final TableColumn column,
final int index) {
SelectionAdapter selectionAdapter = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
GenericFeatureViewerComparator comparator = (GenericFeatureViewerComparator) viewer.getComparator();
comparator.setPropertyIndex(index);
int dir = comparator.getDirection();
viewer.getTable().setSortDirection(dir);
viewer.getTable().setSortColumn(column);
viewer.refresh();
}
};
return selectionAdapter;
}
}