com.google.gwt.eclipse.oophm.views.hierarchical.TreeNavigationView.java Source code

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Here is the source code for com.google.gwt.eclipse.oophm.views.hierarchical.TreeNavigationView.java

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/*******************************************************************************
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package com.google.gwt.eclipse.oophm.views.hierarchical;

import com.google.gwt.eclipse.oophm.model.ModelLabelProvider;
import com.google.gwt.eclipse.oophm.model.TreeContentProvider;
import com.google.gwt.eclipse.oophm.model.WebAppDebugModel;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ITreeSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;

class TreeNavigationView extends SelectionProvidingComposite {
    private final SashForm sashForm;
    private final TreeViewer contentTypes;
    private final ContentPanel contentPanel;

    public TreeNavigationView(Composite parent, int style) {
        super(parent, style);
        setLayout(new FillLayout(SWT.VERTICAL));

        sashForm = new SashForm(this, SWT.HORIZONTAL);
        contentTypes = new TreeViewer(sashForm);
        contentTypes.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                fireSelectionChangedEvent(event);

                Object contentPanelSelection = null;
                ISelection selection = contentTypes.getSelection();
                if (selection != null && !selection.isEmpty()) {
                    contentPanelSelection = ((ITreeSelection) selection).getFirstElement();
                }

                contentPanel.setSelection(contentPanelSelection);
            }
        });

        contentPanel = new ContentPanel(sashForm, SWT.NONE);

        contentTypes.setComparator(new ModelNodeViewerComparator());
        sashForm.setWeights(new int[] { 20, 80 });
        contentTypes.setLabelProvider(new ModelLabelProvider());
        contentTypes.setContentProvider(new TreeContentProvider());
        contentTypes.getTree().addKeyListener(new EnterKeyTreeToggleKeyAdapter(contentTypes));
    }

    public ISelection getSelection() {
        return contentTypes.getSelection();
    }

    public void setInput(WebAppDebugModel model) {
        contentTypes.setInput(model);
    }

    public void setSelection(ISelection selection) {
        contentTypes.setSelection(selection);
    }
}