org.dev.toos.constcode.ui.handler.vartree.VarTreeDeleteAdapter.java Source code

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Here is the source code for org.dev.toos.constcode.ui.handler.vartree.VarTreeDeleteAdapter.java

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/*
 * Copyright 2008-2009 the original (zyc@hasor.net).
 *
 * 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 org.dev.toos.constcode.ui.handler.vartree;

import java.util.Iterator;
import org.dev.toos.constcode.model.bridge.VarBeanBridge;
import org.dev.toos.constcode.ui.handler.AbstractAdapter;
import org.dev.toos.constcode.ui.view.ConstCodeViewPage;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;

/**
 * 
 * @version : 2013-2-3
 * @author  (zyc@byshell.org)
 */
public class VarTreeDeleteAdapter extends AbstractAdapter implements SelectionListener {
    public VarTreeDeleteAdapter(ConstCodeViewPage pageObject) {
        super(pageObject);
    }

    @Override
    public void widgetSelected(SelectionEvent e) {
        TreeViewer treeViewer = this.getViewPage().getVarTreeViewer();
        TreeSelection selection = (TreeSelection) treeViewer.getSelection();
        if (selection.isEmpty() == true)
            return;
        Iterator<Object> iterator = selection.iterator();
        while (iterator.hasNext()) {
            VarBeanBridge bridge = (VarBeanBridge) iterator.next();
            if (bridge.readOnly() == true)
                return;
            if (bridge.getParent() == null)
                bridge.getConst().deleteVar(bridge);
            else
                bridge.getParent().deleteVar(bridge);
        }
        treeViewer.refresh();
    }

    @Override
    public void widgetDefaultSelected(SelectionEvent e) {
    }
}