| /******************************************************************************* |
| * Copyright (c) 2009 Matthew Hall 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: |
| * Matthew Hall - initial API and implementation (bug 260337) |
| * Matthew Hall - bug 283428 |
| ******************************************************************************/ |
| |
| package org.eclipse.jface.databinding.viewers; |
| |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.property.Properties; |
| import org.eclipse.core.databinding.property.list.IListProperty; |
| import org.eclipse.core.databinding.property.set.ISetProperty; |
| import org.eclipse.core.databinding.property.value.IValueProperty; |
| import org.eclipse.jface.databinding.swt.SWTObservables; |
| import org.eclipse.jface.viewers.AbstractTableViewer; |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.jface.viewers.StructuredViewer; |
| |
| /** |
| * Helper methods for binding observables to a {@link StructuredViewer} or |
| * {@link AbstractTableViewer}. |
| * |
| * @since 1.3 |
| */ |
| public class ViewerSupport { |
| /** |
| * Binds the viewer to the specified input, using the specified label |
| * property to generate labels. |
| * |
| * @param viewer |
| * the viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param labelProperty |
| * the property to use for labels |
| */ |
| public static void bind(StructuredViewer viewer, IObservableList input, |
| IValueProperty labelProperty) { |
| bind(viewer, input, new IValueProperty[] { labelProperty }); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified label |
| * properties to generate labels. |
| * |
| * @param viewer |
| * the viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param labelProperties |
| * the respective properties to use for labels in each of the |
| * viewer's columns |
| */ |
| public static void bind(StructuredViewer viewer, IObservableList input, |
| IValueProperty[] labelProperties) { |
| ObservableListContentProvider contentProvider = new ObservableListContentProvider(); |
| if (viewer.getInput() != null) |
| viewer.setInput(null); |
| viewer.setContentProvider(contentProvider); |
| viewer.setLabelProvider(new ObservableMapLabelProvider(Properties |
| .observeEach(contentProvider.getKnownElements(), |
| labelProperties))); |
| if (input != null) |
| viewer.setInput(input); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified label |
| * property to generate labels. |
| * |
| * @param viewer |
| * the viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param labelProperty |
| * the property to use for labels |
| */ |
| public static void bind(StructuredViewer viewer, IObservableSet input, |
| IValueProperty labelProperty) { |
| bind(viewer, input, new IValueProperty[] { labelProperty }); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified label |
| * properties to generate labels. |
| * |
| * @param viewer |
| * the viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param labelProperties |
| * the respective properties to use for labels in each of the |
| * viewer's columns |
| */ |
| public static void bind(StructuredViewer viewer, IObservableSet input, |
| IValueProperty[] labelProperties) { |
| ObservableSetContentProvider contentProvider = new ObservableSetContentProvider(); |
| if (viewer.getInput() != null) |
| viewer.setInput(null); |
| viewer.setContentProvider(contentProvider); |
| viewer.setLabelProvider(new ObservableMapLabelProvider(Properties |
| .observeEach(contentProvider.getKnownElements(), |
| labelProperties))); |
| if (input != null) |
| viewer.setInput(input); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified children |
| * property to generate child nodes, and the specified label property to |
| * generate labels. |
| * |
| * @param viewer |
| * the tree viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param childrenProperty |
| * the property to use as the children of an element |
| * @param labelProperty |
| * the property to use for labels |
| */ |
| public static void bind(AbstractTreeViewer viewer, Object input, |
| IListProperty childrenProperty, IValueProperty labelProperty) { |
| bind(viewer, input, childrenProperty, |
| new IValueProperty[] { labelProperty }); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified children |
| * property to generate child nodes, and the specified label properties to |
| * generate labels. |
| * |
| * @param viewer |
| * the tree viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param childrenProperty |
| * the property to use as the children of an element |
| * @param labelProperties |
| * the respective properties to use for labels in each of the |
| * viewer's columns |
| */ |
| public static void bind(AbstractTreeViewer viewer, Object input, |
| IListProperty childrenProperty, IValueProperty[] labelProperties) { |
| Realm realm = SWTObservables.getRealm(viewer.getControl().getDisplay()); |
| ObservableListTreeContentProvider contentProvider = new ObservableListTreeContentProvider( |
| childrenProperty.listFactory(realm), null); |
| if (viewer.getInput() != null) |
| viewer.setInput(null); |
| viewer.setContentProvider(contentProvider); |
| viewer.setLabelProvider(new ObservableMapLabelProvider(Properties |
| .observeEach(contentProvider.getKnownElements(), |
| labelProperties))); |
| if (input != null) |
| viewer.setInput(input); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified children |
| * property to generate child nodes, and the specified label property to |
| * generate labels. |
| * |
| * @param viewer |
| * the tree viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param childrenProperty |
| * the property to use as the children of an element |
| * @param labelProperty |
| * the property to use for labels |
| */ |
| public static void bind(AbstractTreeViewer viewer, Object input, |
| ISetProperty childrenProperty, IValueProperty labelProperty) { |
| bind(viewer, input, childrenProperty, |
| new IValueProperty[] { labelProperty }); |
| } |
| |
| /** |
| * Binds the viewer to the specified input, using the specified children |
| * property to generate child nodes, and the specified label properties to |
| * generate labels. |
| * |
| * @param viewer |
| * the tree viewer to set up |
| * @param input |
| * the input to set on the viewer |
| * @param childrenProperty |
| * the property to use as the children of an element |
| * @param labelProperties |
| * the respective properties to use for labels in each of the |
| * viewer's columns |
| */ |
| public static void bind(AbstractTreeViewer viewer, Object input, |
| ISetProperty childrenProperty, IValueProperty[] labelProperties) { |
| Realm realm = SWTObservables.getRealm(viewer.getControl().getDisplay()); |
| ObservableSetTreeContentProvider contentProvider = new ObservableSetTreeContentProvider( |
| childrenProperty.setFactory(realm), null); |
| if (viewer.getInput() != null) |
| viewer.setInput(null); |
| viewer.setContentProvider(contentProvider); |
| viewer.setLabelProvider(new ObservableMapLabelProvider(Properties |
| .observeEach(contentProvider.getKnownElements(), |
| labelProperties))); |
| if (input != null) |
| viewer.setInput(input); |
| } |
| } |