cn.cstv.wspscm.views.DiagramActionBarContributor.java Source code

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Here is the source code for cn.cstv.wspscm.views.DiagramActionBarContributor.java

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/*************************************************************************
 * Copyright (c) 2006, 2008. 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:                                                         
 * Author: Su Zhiyong & Zhang Pengcheng                                 
 * Group: CSTV (Chair of Software Testing & Verification) Group          
 * E-mail: zhiyongsu@gmail.com, pchzhang@seu.edu.cn                     
 ***********************************************************************/

/***********************************************************************
 * Project: cn.cstv.wspscm                                          
 * Package: cn.cstv.wspscm.views                                            
 * File: DiagramActionBarContributor.java                                                   
 * Program: DiagramActionBarContributor                                                
 * Version: J2SE-1.6.0                                                  
 * Date: 2008-7-22                                                        
 ***********************************************************************/

/**
 * 
 */
package cn.cstv.wspscm.views;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.draw2d.PositionConstants;
import org.eclipse.gef.ui.actions.ActionBarContributor;
import org.eclipse.gef.ui.actions.ActionRegistry;
import org.eclipse.gef.ui.actions.AlignmentRetargetAction;
import org.eclipse.gef.ui.actions.DeleteRetargetAction;
import org.eclipse.gef.ui.actions.GEFActionConstants;
import org.eclipse.gef.ui.actions.RedoRetargetAction;
import org.eclipse.gef.ui.actions.UndoRetargetAction;
import org.eclipse.gef.ui.actions.ZoomComboContributionItem;
import org.eclipse.gef.ui.actions.ZoomInRetargetAction;
import org.eclipse.gef.ui.actions.ZoomOutRetargetAction;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.actions.RetargetAction;
import org.eclipse.ui.part.EditorActionBarContributor;

import cn.cstv.wspscm.editor.PSCMonitorDiagramEditor;

/**
 * @author Su Zhiyong & Zhang Pengcheng
 * 
 */
@SuppressWarnings("unchecked")
public class DiagramActionBarContributor extends ActionBarContributor {

    private ActionRegistry registry = new ActionRegistry();

    private List retargetActions = new ArrayList();
    private List globalActionKeys = new ArrayList();

    protected void addAction(IAction action) {
        getActionRegistry().registerAction(action);
    }

    protected void addGlobalActionKey(String key) {
        globalActionKeys.add(key);
    }

    protected void addRetargetAction(RetargetAction action) {
        addAction(action);
        retargetActions.add(action);
        getPage().addPartListener(action);
        addGlobalActionKey(action.getId());
    }

    public void dispose() {
        for (int i = 0; i < retargetActions.size(); i++) {
            RetargetAction action = (RetargetAction) retargetActions.get(i);
            getPage().removePartListener(action);
            action.dispose();
        }
        registry.dispose();
        retargetActions = null;
        registry = null;
    }

    protected IAction getAction(String id) {
        return getActionRegistry().getAction(id);
    }

    /**
     * returns this contributor's ActionRegsitry.
     * 
     * @return the ActionRegistry
     */
    protected ActionRegistry getActionRegistry() {
        return registry;
    }

    /**
     * @see EditorActionBarContributor#init(IActionBars)
     */
    public void init(IActionBars bars) {
        buildActions();
        declareGlobalActionKeys();
        super.init(bars);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.gef.ui.actions.ActionBarContributor#buildActions()
     */
    @Override
    protected void buildActions() {
        // TODO Auto-generated method stub
        addRetargetAction(new UndoRetargetAction());

        addRetargetAction(new RedoRetargetAction());

        addRetargetAction(new DeleteRetargetAction());

        addRetargetAction(new ZoomInRetargetAction());

        addRetargetAction(new ZoomOutRetargetAction());

        addRetargetAction(new AlignmentRetargetAction(PositionConstants.LEFT));
        addRetargetAction(new AlignmentRetargetAction(PositionConstants.CENTER));
        addRetargetAction(new AlignmentRetargetAction(PositionConstants.RIGHT));
        addRetargetAction(new AlignmentRetargetAction(PositionConstants.TOP));
        addRetargetAction(new AlignmentRetargetAction(PositionConstants.MIDDLE));
        addRetargetAction(new AlignmentRetargetAction(PositionConstants.BOTTOM));
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.gef.ui.actions.ActionBarContributor#declareGlobalActionKeys()
     */

    @Override
    public void contributeToToolBar(IToolBarManager toolBarManager) {
        toolBarManager.add(getAction(ActionFactory.UNDO.getId()));
        toolBarManager.add(getAction(ActionFactory.REDO.getId()));
        toolBarManager.add(getAction(ActionFactory.DELETE.getId()));
        toolBarManager.add(new Separator());
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ZOOM_IN));
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ZOOM_OUT));
        toolBarManager.add(new ZoomComboContributionItem(getPage()));
        toolBarManager.add(new Separator());
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_LEFT));
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_CENTER));
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_RIGHT));
        toolBarManager.add(new Separator());
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_TOP));
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_MIDDLE));
        toolBarManager.add(getActionRegistry().getAction(GEFActionConstants.ALIGN_BOTTOM));
    }

    protected IAction getAction(IEditorPart editor, String actionID) {
        if (editor instanceof PSCMonitorDiagramEditor) {
            return ((PSCMonitorDiagramEditor) editor).getAction(actionID);
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.gef.ui.actions.ActionBarContributor#declareGlobalActionKeys()
     */
    @Override
    protected void declareGlobalActionKeys() {
        // TODO Auto-generated method stub

    }

    public void setActiveEditor(IEditorPart editor) {
        ActionRegistry registry = (ActionRegistry) editor.getAdapter(ActionRegistry.class);
        IActionBars bars = getActionBars();
        for (int i = 0; i < globalActionKeys.size(); i++) {
            String id = (String) globalActionKeys.get(i);
            bars.setGlobalActionHandler(id, registry.getAction(id));
        }
        bars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(),
                getAction(editor, ActionFactory.SELECT_ALL.getId()));
        bars.updateActionBars();
    }

}