Difference

/*******************************************************************************
 * Copyright (c) 2007 Actuate Corporation.
 * 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:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.chart.examples.view.models;

import org.eclipse.birt.chart.extension.datafeed.DifferenceEntry;
import org.eclipse.birt.chart.model.Chart;
import org.eclipse.birt.chart.model.ChartWithAxes;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.IntersectionType;
import org.eclipse.birt.chart.model.attribute.MultipleFill;
import org.eclipse.birt.chart.model.attribute.TickStyle;
import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionImpl;
import org.eclipse.birt.chart.model.attribute.impl.MultipleFillImpl;
import org.eclipse.birt.chart.model.component.Axis;
import org.eclipse.birt.chart.model.component.Series;
import org.eclipse.birt.chart.model.component.impl.SeriesImpl;
import org.eclipse.birt.chart.model.data.BaseSampleData;
import org.eclipse.birt.chart.model.data.DataFactory;
import org.eclipse.birt.chart.model.data.DifferenceDataSet;
import org.eclipse.birt.chart.model.data.OrthogonalSampleData;
import org.eclipse.birt.chart.model.data.SampleData;
import org.eclipse.birt.chart.model.data.SeriesDefinition;
import org.eclipse.birt.chart.model.data.TextDataSet;
import org.eclipse.birt.chart.model.data.impl.DifferenceDataSetImpl;
import org.eclipse.birt.chart.model.data.impl.SeriesDefinitionImpl;
import org.eclipse.birt.chart.model.data.impl.TextDataSetImpl;
import org.eclipse.birt.chart.model.impl.ChartWithAxesImpl;
import org.eclipse.birt.chart.model.layout.Legend;
import org.eclipse.birt.chart.model.layout.Plot;
import org.eclipse.birt.chart.model.type.DifferenceSeries;
import org.eclipse.birt.chart.model.type.impl.DifferenceSeriesImpl;

/**
 * 
 */

public class Difference
{

	public final static Chart createDifference( )
	{
		ChartWithAxes cwaDifference = ChartWithAxesImpl.create( );
		cwaDifference.setType( "Difference Chart" ); //$NON-NLS-1$
		cwaDifference.setSubType( "Standard Difference Chart" ); //$NON-NLS-1$
		// Plot
		cwaDifference.getBlock( ).setBackground( ColorDefinitionImpl.WHITE( ) );
		cwaDifference.getBlock( ).getOutline( ).setVisible( true );
		Plot p = cwaDifference.getPlot( );
		p.getClientArea( ).setBackground( ColorDefinitionImpl.create( 255,
				255,
				225 ) );

		// Title
		cwaDifference.getTitle( )
				.getLabel( )
				.getCaption( )
				.setValue( "Difference Chart" ); //$NON-NLS-1$

		// Legend
		Legend lg = cwaDifference.getLegend( );
		lg.setVisible( false );

		// X-Axis
		Axis xAxisPrimary = cwaDifference.getPrimaryBaseAxes( )[0];

		xAxisPrimary.setType( AxisType.TEXT_LITERAL );
		xAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.BELOW_LITERAL );
		xAxisPrimary.getOrigin( ).setType( IntersectionType.MIN_LITERAL );

		// Y-Axis
		Axis yAxisPrimary = cwaDifference.getPrimaryOrthogonalAxis( xAxisPrimary );
		yAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.LEFT_LITERAL );
		yAxisPrimary.setType( AxisType.LINEAR_LITERAL );
		yAxisPrimary.getLabel( ).getCaption( ).getFont( ).setRotation( 90 );

		// Data Set
		TextDataSet categoryValues = TextDataSetImpl.create( new String[]{
				"2003", "2004", "2005", "2006"} ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$//$NON-NLS-4$
		DifferenceDataSet values = DifferenceDataSetImpl.create( new DifferenceEntry[]{
				new DifferenceEntry( 12.3, 9.3 ),
				new DifferenceEntry( 25.9, 15.7 ),
				new DifferenceEntry( 15.9, 25.7 ),
				new DifferenceEntry( 19.5, 14.5 )
		} );
		SampleData sd = DataFactory.eINSTANCE.createSampleData( );
		BaseSampleData sdBase = DataFactory.eINSTANCE.createBaseSampleData( );
		sdBase.setDataSetRepresentation( "" );//$NON-NLS-1$
		sd.getBaseSampleData( ).add( sdBase );

		OrthogonalSampleData sdOrthogonal1 = DataFactory.eINSTANCE.createOrthogonalSampleData( );
		sdOrthogonal1.setDataSetRepresentation( "" );//$NON-NLS-1$
		sdOrthogonal1.setSeriesDefinitionIndex( 0 );
		sd.getOrthogonalSampleData( ).add( sdOrthogonal1 );

		cwaDifference.setSampleData( sd );

		// X-Series
		Series seCategory = SeriesImpl.create( );
		seCategory.setDataSet( categoryValues );

		SeriesDefinition sdX = SeriesDefinitionImpl.create( );
		sdX.getSeriesPalette( ).shift( 0 );
		xAxisPrimary.getSeriesDefinitions( ).add( sdX );
		sdX.getSeries( ).add( seCategory );

		// Y-Series
		DifferenceSeries bs1 = (DifferenceSeries) DifferenceSeriesImpl.create( );
		bs1.setDataSet( values );
		bs1.getLabel( ).setVisible( false );

		SeriesDefinition sdY = SeriesDefinitionImpl.create( );
		MultipleFill mf = MultipleFillImpl.create( );
		mf.getFills( ).add( ColorDefinitionImpl.GREEN( ) );
		mf.getFills( ).add( ColorDefinitionImpl.RED( ) );
		sdY.getSeriesPalette( ).update( mf );
		yAxisPrimary.getSeriesDefinitions( ).add( sdY );
		sdY.getSeries( ).add( bs1 );

		return cwaDifference;
	}
}