net.vectorcomputing.photo.ui.widgets.PhotoFactoriesList.java Source code

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Here is the source code for net.vectorcomputing.photo.ui.widgets.PhotoFactoriesList.java

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/*******************************************************************************
 * Copyright 2011 Lance Feagan
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * 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 net.vectorcomputing.photo.ui.widgets;

import net.vectorcomputing.photo.PhotoPlugin;
import net.vectorcomputing.photo.catalog.IPhotoCatalog;
import net.vectorcomputing.photo.factory.IPhotoFactoryRegistry;

import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.ITreeSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerColumn;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Tree;

public class PhotoFactoriesList extends Composite {

    private TreeViewer viewer;
    private Tree tree;

    private final IPhotoFactoryRegistry factories = PhotoPlugin.getFactoryRegistry();

    public PhotoFactoriesList(Composite parent, int style) {
        super(parent, style | SWT.READ_ONLY);
        setLayout(new FillLayout());
        createComponents();
        viewer.setInput(factories);
        //      factories.addListener(this);
    }

    @Override
    protected void checkSubclass() {
        // Disable the check that prevents sub-classing of SWT components
    }

    private void createComponents() {
        viewer = new TreeViewer(this, SWT.SINGLE | SWT.V_SCROLL | SWT.H_SCROLL);
        viewer.setContentProvider(new PhotoFactoriesContentProvider());
        tree = viewer.getTree();
        createHeaders();
    }

    private void createHeaders() {
        String[] headers = { "ID", "Name", "Enabled" };
        int[] columnWidths = { 100, 100, 100 };
        for (int i = 0; i < headers.length; i++) {
            TreeViewerColumn column = new TreeViewerColumn(viewer, SWT.NONE);
            column.getColumn().setText(headers[i]);
            column.getColumn().setResizable(true);
            //column.getColumn().setMoveable(true);
            column.getColumn().setWidth(columnWidths[i]);
        }

        viewer.setLabelProvider(new PhotoFactoriesCellLabelProvider());

        tree.setHeaderVisible(true);
        tree.setLinesVisible(true);
    }

    public IPhotoCatalog getSelectedCatalog() {
        ITreeSelection selection = (ITreeSelection) viewer.getSelection();
        return (IPhotoCatalog) selection.getFirstElement();
    }

    public ISelectionProvider getViewer() {
        return viewer;
    }

    @Override
    public void dispose() {
        //      factories.removeListener(this);
        super.dispose();
    }

    //   @Override
    //   public void handle(IPhotoCatalogEvent event) {
    //      this.getDisplay().asyncExec(new CatalogEventHandler(event));
    //   }
    //   
    //   private final class CatalogEventHandler implements Runnable {
    //
    //      private final IPhotoCatalogEvent event;
    //      
    //      public CatalogEventHandler(IPhotoCatalogEvent event) {
    //         this.event = event;
    //      }
    //      
    //      @Override
    //      public void run() {
    //         viewer.refresh();      
    //      }
    //      
    //   }

}