Package

Source Code of ChartHelper

/*************************************************************************
*
*  $RCSfile: ChartHelper.java,v $
*
*  $Revision: 1.3 $
*
*  last change: $Author: hr $ $Date: 2003/06/30 15:08:49 $
*
*  The Contents of this file are made available subject to the terms of
*  the BSD license.
*  Copyright (c) 2003 by Sun Microsystems, Inc.
*  All rights reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*  1. Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*  2. Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in the
*     documentation and/or other materials provided with the distribution.
*  3. Neither the name of Sun Microsystems, Inc. nor the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
*  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
*  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
*  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
*  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
*  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*    
*************************************************************************/

// __________ Imports __________


// base classes
import com.sun.star.uno.XInterface;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.lang.*;

// factory for creating components
import com.sun.star.lang.XMultiServiceFactory;

// property access
import com.sun.star.beans.*;

// container access
import com.sun.star.container.*;

// application specific classes
import com.sun.star.chart.XChartDocument;
import com.sun.star.chart.XDiagram;
import com.sun.star.drawing.*;
import com.sun.star.frame.XModel;

// base graphics things
import com.sun.star.awt.Point;
import com.sun.star.awt.Size;

// Exceptions
import com.sun.star.uno.RuntimeException;
import com.sun.star.container.NoSuchElementException;
import com.sun.star.beans.UnknownPropertyException;
import com.sun.star.lang.IndexOutOfBoundsException;

// __________ Implementation __________

/** Helper for creating an OLE chart
    @author Björn Milcke
*/
public class ChartHelper
{
    public ChartHelper( XModel aContainerDoc )
    {
        maContainerDocument = aContainerDoc;
    }

    // ____________________

    public XChartDocument insertOLEChart(
        String sChartName,
        Point  aUpperLeft,
        Size   aExtent,
        String sChartServiceName )
    {
        XChartDocument aResult = null;

        XShapes aPage = null;

        // try interface for multiple pages in a document
        XDrawPagesSupplier aSupplier = (XDrawPagesSupplier) UnoRuntime.queryInterface(
            XDrawPagesSupplier.class, maContainerDocument );

        if( aSupplier != null )
        {
            try
            {
                // get first page
                aPage = (XShapes) UnoRuntime.queryInterface(
                    XShapes.class, aSupplier.getDrawPages().getByIndex( 0 ) );
            }
            catch( Exception ex )
            {
                System.out.println( "First page not found in shape collection: " + ex );
            }
        }
        else
        {
            // try interface for single draw page (e.g. spreadsheet)
            XDrawPageSupplier aOnePageSupplier = (XDrawPageSupplier) UnoRuntime.queryInterface(
                XDrawPageSupplier.class, maContainerDocument );

            if( aOnePageSupplier != null )
            {
                aPage = (XShapes) UnoRuntime.queryInterface(
                    XShapes.class, aOnePageSupplier.getDrawPage());
            }
        }

        if( aPage != null )
        {
            XMultiServiceFactory aFact = (XMultiServiceFactory) UnoRuntime.queryInterface(
                XMultiServiceFactory.class, maContainerDocument );

            if( aFact != null )
            {
                try
                {
                    // create an OLE shape
                    XShape aShape = (XShape) UnoRuntime.queryInterface(
                        XShape.class,
                        aFact.createInstance( "com.sun.star.drawing.OLE2Shape" ));

                    // insert the shape into the page
                    aPage.add( aShape );
                    aShape.setPosition( aUpperLeft );
                    aShape.setSize( aExtent );

                    // make the OLE shape a chart
                    XPropertySet aShapeProp = (XPropertySet) UnoRuntime.queryInterface(
                        XPropertySet.class, aShape );
                    if( aShapeProp != null )
                    {
                        // set the class id for charts
                        aShapeProp.setPropertyValue( "CLSID", msChartClassID );

                        // retrieve the chart document as model of the OLE shape
                        aResult = (XChartDocument) UnoRuntime.queryInterface(
                            XChartDocument.class,
                            aShapeProp.getPropertyValue( "Model" ));

                        // create a diagram via the factory and set this as new diagram
                        aResult.setDiagram(
                            (XDiagram) UnoRuntime.queryInterface(
                                XDiagram.class,
                                ((XMultiServiceFactory) UnoRuntime.queryInterface(
                                    XMultiServiceFactory.class,
                                    aResult )).createInstance( sChartServiceName )));
                    }
                }
                catch( Exception ex )
                {
                    System.out.println( "Couldn't change the OLE shape into a chart: " + ex );
                }
            }
        }

        return aResult;
    }


    // __________ private members and methods __________

    private final String  msChartClassID   = "12dcae26-281f-416f-a234-c3086127382e";

    private XModel maContainerDocument;
}
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