it.eng.spagobi.meta.editor.business.BusinessModelEditorSelectionProvider.java Source code

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Here is the source code for it.eng.spagobi.meta.editor.business.BusinessModelEditorSelectionProvider.java

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/**
 SpagoBI, the Open Source Business Intelligence suite
    
 Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center
 This Source Code Form is subject to the terms of the Mozilla Public
 License, v. 2.0. If a copy of the MPL was not distributed with this file,
 You can obtain one at http://mozilla.org/MPL/2.0/.
     
**/
package it.eng.spagobi.meta.editor.business;

import java.util.ArrayList;
import java.util.Collection;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;

/**
 * @author Andrea Gioia (andrea.gioia@eng.it)
 *
 */
public class BusinessModelEditorSelectionProvider implements ISelectionProvider {

    BusinessModelEditor editor;

    /**
     * This keeps track of all the {@link org.eclipse.jface.viewers.ISelectionChangedListener}s 
     * that are listening to this editor.
     */
    protected Collection<ISelectionChangedListener> selectionChangedListeners = new ArrayList<ISelectionChangedListener>();

    /**
     * This keeps track of the selection of the editor as a whole.
     */
    protected ISelection editorSelection = StructuredSelection.EMPTY;

    public BusinessModelEditorSelectionProvider(BusinessModelEditor editor) {
        this.editor = editor;
    }

    public ISelection getEditorSelection() {
        return editorSelection;
    }

    public void setEditorSelection(ISelection editorSelection) {
        this.editorSelection = editorSelection;
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void addSelectionChangedListener(ISelectionChangedListener listener) {
        selectionChangedListeners.add(listener);
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void removeSelectionChangedListener(ISelectionChangedListener listener) {
        selectionChangedListeners.remove(listener);
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to return this editor's overall selection.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public ISelection getSelection() {
        return editorSelection;
    }

    /**
     * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to set this editor's overall selection.
     * Calling this result will notify the listeners.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setSelection(ISelection selection) {
        editorSelection = selection;

        for (ISelectionChangedListener listener : selectionChangedListeners) {
            listener.selectionChanged(new SelectionChangedEvent(this, selection));
        }

        editor.setStatusLineManager(selection);
    }
}