com.nextep.designer.dbgm.ui.DiagramEditorInput.java Source code

Introduction

Here is the source code for com.nextep.designer.dbgm.ui.DiagramEditorInput.java

Source

/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public 
 * License as published by the Free Software Foundation, either 
 * version 3 of the License, or any later version.
 *
 * NeXtep designer is distributed in the hope that it will be 
 * useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.designer.dbgm.ui;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IPersistableElement;
import com.nextep.datadesigner.Designer;
import com.nextep.datadesigner.model.ChangeEvent;
import com.nextep.datadesigner.model.IEventListener;
import com.nextep.datadesigner.model.IModelOriented;
import com.nextep.datadesigner.model.IObservable;
import com.nextep.datadesigner.vcs.services.VersionHelper;
import com.nextep.designer.vcs.model.IDiagram;
import com.nextep.designer.vcs.model.IVersionable;

/**
 * @author Christophe Fondacci
 *
 */
public class DiagramEditorInput implements IEditorInput, IModelOriented<IDiagram>, IEventListener {

    private IDiagram diagram;

    //   private IPersistableElement persistor;
    public DiagramEditorInput(IDiagram diagram) {
        this.diagram = diagram;
        if (diagram != null) {
            Designer.getListenerService().registerListener(this, diagram, this);
        }
        //      persistor = new DiagramEditorPersistable(diagram);
    }

    public IDiagram getDiagram() {
        return diagram;
    }

    /**
     * @see org.eclipse.ui.IEditorInput#exists()
     */
    @Override
    public boolean exists() {
        return true;
    }

    /**
     * @see org.eclipse.ui.IEditorInput#getImageDescriptor()
     */
    @Override
    public ImageDescriptor getImageDescriptor() {
        return ImageDescriptor.createFromImage(DBGMImages.ICON_GRAPH);
    }

    /**
     * @see org.eclipse.ui.IEditorInput#getName()
     */
    @Override
    public String getName() {
        return diagram.getName();
    }

    /**
     * @see org.eclipse.ui.IEditorInput#getPersistable()
     */
    @Override
    public IPersistableElement getPersistable() {
        return null;
    }

    /**
     * @see org.eclipse.ui.IEditorInput#getToolTipText()
     */
    @Override
    public String getToolTipText() {
        IVersionable<IDiagram> v = VersionHelper.getVersionable(diagram);
        String prefix = "";
        if (v != null && v.getContainer() != null) {
            prefix = v.getContainer().getName() + "/";
        }
        return prefix + (diagram != null ? diagram.getName() : "");
    }

    /**
     * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
     */
    @SuppressWarnings("unchecked")
    @Override
    public Object getAdapter(Class adapter) {
        // TODO Auto-generated method stub
        return null;
    }

    /**
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (obj instanceof DiagramEditorInput) {
            return getDiagram() == ((DiagramEditorInput) obj).getDiagram();
        }
        return false;
    }

    @Override
    public IDiagram getModel() {
        return diagram;
    }

    @Override
    public void setModel(IDiagram model) {
        this.diagram = model;
    }

    @Override
    public void handleEvent(ChangeEvent event, IObservable source, Object data) {
        // Nothing to do here, only listening to have proper model switch
    }
}