/*******************************************************************************
 * 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.GanttEntry;
import org.eclipse.birt.chart.model.Chart;
import org.eclipse.birt.chart.model.ChartWithAxes;
import org.eclipse.birt.chart.model.attribute.AttributeFactory;
import org.eclipse.birt.chart.model.attribute.AxisType;
import org.eclipse.birt.chart.model.attribute.DateFormatDetail;
import org.eclipse.birt.chart.model.attribute.DateFormatSpecifier;
import org.eclipse.birt.chart.model.attribute.DateFormatType;
import org.eclipse.birt.chart.model.attribute.IntersectionType;
import org.eclipse.birt.chart.model.attribute.LegendItemType;
import org.eclipse.birt.chart.model.attribute.Orientation;
import org.eclipse.birt.chart.model.attribute.TickStyle;
import org.eclipse.birt.chart.model.attribute.impl.ColorDefinitionImpl;
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.GanttDataSet;
import org.eclipse.birt.chart.model.data.NumberDataSet;
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.impl.DateTimeDataElementImpl;
import org.eclipse.birt.chart.model.data.impl.GanttDataSetImpl;
import org.eclipse.birt.chart.model.data.impl.NumberDataSetImpl;
import org.eclipse.birt.chart.model.data.impl.SeriesDefinitionImpl;
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.GanttSeries;
import org.eclipse.birt.chart.model.type.impl.GanttSeriesImpl;
import org.eclipse.birt.chart.util.CDateTime;

/**
 * 
 */

public class Gantt
{

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

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

		// Legend
		Legend lg = cwaGantt.getLegend( );
		lg.setItemType( LegendItemType.CATEGORIES_LITERAL );

		// X-Axis
		Axis xAxisPrimary = cwaGantt.getPrimaryBaseAxes( )[0];
		xAxisPrimary.setCategoryAxis( true );
		xAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.BELOW_LITERAL );
		xAxisPrimary.getOrigin( ).setType( IntersectionType.MIN_LITERAL );
		
		// Y-Axis
		Axis yAxisPrimary = cwaGantt.getPrimaryOrthogonalAxis( xAxisPrimary );
		yAxisPrimary.setType( AxisType.DATE_TIME_LITERAL );
		yAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.LEFT_LITERAL );
		yAxisPrimary.getScale( ).setMin( DateTimeDataElementImpl.create( new CDateTime(2008,1,1) ) );
		yAxisPrimary.getScale( ).setMax( DateTimeDataElementImpl.create( new CDateTime(2009,1,1) ) );
		DateFormatSpecifier dfs = AttributeFactory.eINSTANCE.createDateFormatSpecifier( );		
		dfs.setDetail( DateFormatDetail.DATE_LITERAL );
		dfs.setType( DateFormatType.MEDIUM_LITERAL );
		yAxisPrimary.setFormatSpecifier( dfs );

		// Data Set
		NumberDataSet categoryValues = NumberDataSetImpl.create( new double[]{
				1, 2, 3
		} );
		GanttDataSet phase1 = GanttDataSetImpl.create( new GanttEntry[]{
				new GanttEntry( new CDateTime( 2008, 1, 9 ),
						new CDateTime( 2008, 6, 9 ),
						"Task A" ), //$NON-NLS-1$
				new GanttEntry( new CDateTime( 2008, 3, 9 ),
						new CDateTime( 2008, 8, 9 ),
						"Task B" ), //$NON-NLS-1$
				new GanttEntry( new CDateTime( 2008, 5, 24 ),
						new CDateTime( 2008, 9, 9 ),
						"Task C" ) //$NON-NLS-1$
		} );
		GanttDataSet phase2 = GanttDataSetImpl.create( new GanttEntry[]{
				new GanttEntry( new CDateTime( 2008, 6, 12 ),
						new CDateTime( 2008, 9, 23 ),
						"Task A" ), //$NON-NLS-1$
				new GanttEntry( new CDateTime( 2008, 8, 9 ),
						new CDateTime( 2008, 8, 9 ),
						"Task B" ), //$NON-NLS-1$
				new GanttEntry( new CDateTime( 2008, 9, 9 ),
						new CDateTime( 2008, 12, 9 ),
						"Task C" ) //$NON-NLS-1$
		} );
		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 );

		cwaGantt.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
		GanttSeries taskPhase1 = (GanttSeries) GanttSeriesImpl.create( );
		taskPhase1.setDataSet( phase1 );
		taskPhase1.getLabel( ).setVisible( false );

		GanttSeries taskPhase2 = (GanttSeries) GanttSeriesImpl.create( );
		taskPhase2.setDataSet( phase2 );
		taskPhase2.getLabel( ).setVisible( false );
		
		SeriesDefinition sdY = SeriesDefinitionImpl.create( );
		sdY.getSeriesPalette( ).shift( 0 );
		yAxisPrimary.getSeriesDefinitions( ).add( sdY );
		sdY.getSeries( ).add( taskPhase1 );
		sdY.getSeries( ).add( taskPhase2 );

		return cwaGantt;
	}
}