franta-hg@1: /* ================================================================
franta-hg@1:  * Cewolf : Chart enabling Web Objects Framework
franta-hg@1:  * ================================================================
franta-hg@1:  *
franta-hg@1:  * Project Info:  http://cewolf.sourceforge.net
franta-hg@1:  * Project Lead:  Guido Laures (guido@laures.de);
franta-hg@1:  *
franta-hg@1:  * (C) Copyright 2002, by Guido Laures and contributers
franta-hg@1:  *
franta-hg@1:  * This library is free software; you can redistribute it and/or modify it under the terms
franta-hg@1:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
franta-hg@1:  * either version 2.1 of
franta-hg@1:  * the License, or (at your option) any later version.
franta-hg@1:  *
franta-hg@1:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
franta-hg@1:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
franta-hg@1:  * See the GNU Lesser General Public License for more details.
franta-hg@1:  *
franta-hg@1:  * You should have received a copy of the GNU Lesser General Public License along with this
franta-hg@1:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
franta-hg@1:  * Boston, MA 02111-1307, USA.
franta-hg@1:  */
franta-hg@1: package de.laures.cewolf.taglib;
franta-hg@1: 
franta-hg@1: import java.io.Serializable;
franta-hg@1: import java.util.Map;
franta-hg@1: 
franta-hg@1: import org.apache.commons.logging.Log;
franta-hg@1: import org.apache.commons.logging.LogFactory;
franta-hg@1: import org.jfree.chart.plot.CategoryPlot;
franta-hg@1: import org.jfree.chart.plot.DrawingSupplier;
franta-hg@1: import org.jfree.chart.plot.Plot;
franta-hg@1: import org.jfree.chart.plot.XYPlot;
franta-hg@1: import org.jfree.chart.renderer.AbstractRenderer;
franta-hg@1: import org.jfree.chart.renderer.category.CategoryItemRenderer;
franta-hg@1: import org.jfree.chart.renderer.xy.XYItemRenderer;
franta-hg@1: import org.jfree.data.category.CategoryDataset;
franta-hg@1: import org.jfree.data.general.Dataset;
franta-hg@1: import org.jfree.data.xy.IntervalXYDataset;
franta-hg@1: import org.jfree.data.xy.OHLCDataset;
franta-hg@1: import org.jfree.data.xy.XYDataset;
franta-hg@1: 
franta-hg@1: import de.laures.cewolf.ChartValidationException;
franta-hg@1: import de.laures.cewolf.DatasetProduceException;
franta-hg@1: import de.laures.cewolf.DatasetProducer;
franta-hg@1: 
franta-hg@1: /**
franta-hg@1:  * (sub) Plot definition for combined/overlaid charts.
franta-hg@1:  * 
franta-hg@1:  * @author Chris McCann
franta-hg@1:  * @author Guido Laures
franta-hg@1:  */
franta-hg@1: public class PlotDefinition implements DataAware, Serializable, TaglibConstants, PlotConstants {
franta-hg@1: 
franta-hg@1: 	private transient Log log = LogFactory.getLog(getClass());
franta-hg@1: 
franta-hg@1: 	private String type;
franta-hg@1: 	private String xAxisLabel; // [tb]
franta-hg@1: 	private String yAxisLabel; // [tb]
franta-hg@1: 
franta-hg@1: 	private DataContainer dataAware = new DataContainer();
franta-hg@1: 	private transient Plot plot;
franta-hg@1: 	private transient DrawingSupplier drawingSupplier = null;
franta-hg@1: 
franta-hg@1: 	public Plot getPlot(int chartType) throws DatasetProduceException, ChartValidationException {
franta-hg@1:     log.debug("Plot.getPlot: chartType: " + chartType);
franta-hg@1: 		if (plot == null) {
franta-hg@1: 			int rendererIndex = PlotTypes.getRendererIndex(type);
franta-hg@1: 			
franta-hg@1: 			Dataset data = (Dataset) getDataset();
franta-hg@1: 			log.debug("Plot.getPlot: data name: " +data.getClass().getName());
franta-hg@1: 			AbstractRenderer rend = PlotTypes.getRenderer(rendererIndex);
franta-hg@1: 			log.debug("Plot.getPlot: rendererIndex: " + rendererIndex);
franta-hg@1: 			if (chartType == ChartConstants.OVERLAY_XY || chartType == ChartConstants.COMBINED_XY) {
franta-hg@1: 				switch (rendererIndex) {
franta-hg@1: 					case XY_AREA :
franta-hg@1: 					case XY_LINE :
franta-hg@1: 					case XY_SHAPES_AND_LINES :
franta-hg@1: 					case SCATTER :
franta-hg@1: 					case STEP :
franta-hg@1: 						check(data, XYDataset.class, rendererIndex);
franta-hg@1: 						plot = new XYPlot((XYDataset) data, null, null, (XYItemRenderer) rend);
franta-hg@1: 						break;
franta-hg@1: 					case XY_VERTICAL_BAR :
franta-hg@1: 						check(data, IntervalXYDataset.class, rendererIndex);
franta-hg@1: 						plot = new XYPlot((IntervalXYDataset) data, null, null, (XYItemRenderer) rend);
franta-hg@1: 						break;
franta-hg@1: 					case CANDLESTICK :
franta-hg@1: 					case HIGH_LOW :
franta-hg@1: 						check(data, OHLCDataset.class, rendererIndex);
franta-hg@1: 						plot = new XYPlot((OHLCDataset) data, null, null, (XYItemRenderer) rend);
franta-hg@1: 						break;
franta-hg@1: 					//case SIGNAL :
franta-hg@1: 					//	check(data, SignalsDataset.class, rendererIndex);
franta-hg@1: 					//	plot = new XYPlot((SignalsDataset) data, null, null, (XYItemRenderer) rend);
franta-hg@1: 					default :
franta-hg@1: 						throw new AttributeValidationException(chartType + ".type", type);
franta-hg@1: 				}
franta-hg@1: 			} else if (chartType == ChartConstants.OVERLAY_CATEGORY) {
franta-hg@1: 				switch (rendererIndex) {
franta-hg@1: 					case AREA :
franta-hg@1: 					case VERTICAL_BAR :
franta-hg@1: 					case LINE :
franta-hg@1: 					case SHAPES_AND_LINES :
franta-hg@1: 						check(data, CategoryDataset.class, rendererIndex);
franta-hg@1: 						plot =
franta-hg@1: 							new CategoryPlot(
franta-hg@1: 								(CategoryDataset) data,
franta-hg@1: 								null,
franta-hg@1: 								null,
franta-hg@1: 								(CategoryItemRenderer) rend);
franta-hg@1: 						break;
franta-hg@1: 					default :
franta-hg@1: 						throw new AttributeValidationException(chartType + ".type", type);
franta-hg@1: 				}
franta-hg@1: 			}
franta-hg@1: 		}
franta-hg@1: 		plot.setDrawingSupplier(drawingSupplier);
franta-hg@1: 		return plot;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	public Object getDataset() throws DatasetProduceException {
franta-hg@1: 		return dataAware.getDataset();
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	/**
franta-hg@1: 	 * Gets the y-axis label. [tb]
franta-hg@1: 	 *
franta-hg@1: 	 * @return the y-axis label.
franta-hg@1: 	 */
franta-hg@1: 	public String getXaxislabel() {
franta-hg@1: 		return xAxisLabel;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	/**
franta-hg@1: 	 * Sets the x-axis label [tb]
franta-hg@1: 	 *
franta-hg@1: 	 * @return the x-axis label
franta-hg@1: 	 */
franta-hg@1: 	public String getYaxislabel() {
franta-hg@1: 		return yAxisLabel;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	/**
franta-hg@1: 	 * Sets the x-axis label [tb]
franta-hg@1: 	 *
franta-hg@1: 	 * @param xAxisLabel New value of property xAxisLabel.
franta-hg@1: 	 */
franta-hg@1: 	public void setXaxislabel(String xAxisLabel) {
franta-hg@1: 		this.xAxisLabel = xAxisLabel;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	/**
franta-hg@1: 	 * Sets the y-axis label [tb]
franta-hg@1: 	 *
franta-hg@1: 	 * @param yAxisLabel New value of property yAxisLabel.
franta-hg@1: 	 */
franta-hg@1: 	public void setYaxislabel(String yAxisLabel) {
franta-hg@1: 		this.yAxisLabel = yAxisLabel;
franta-hg@1: 	}
franta-hg@1: 	/**
franta-hg@1: 	 * Sets the type.
franta-hg@1: 	 * @param type The type to set
franta-hg@1: 	 */
franta-hg@1: 	public void setType(String type) {
franta-hg@1: 		this.type = type;
franta-hg@1: 	}
franta-hg@1: 	/**
franta-hg@1: 	 * Gets the type.
franta-hg@1: 	 * @return type of plot as a String
franta-hg@1: 	 */
franta-hg@1: 	public String getType() {
franta-hg@1: 		return this.type;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	public void check(Dataset data, Class clazz, int plotType) throws IncompatibleDatasetException {
franta-hg@1: 		if (!clazz.isInstance(data)) {
franta-hg@1: 			throw new IncompatibleDatasetException(
franta-hg@1: 				"Plots of type " + PlotTypes.typeNames[plotType] + " need a dataset of type " + clazz.getName());
franta-hg@1: 		}
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	public void setDataProductionConfig(DatasetProducer dsp, Map params, boolean useCache) {
franta-hg@1: 		log.debug("setDataProductionConfig(" + dsp + ", " + params);
franta-hg@1: 		dataAware.setDataProductionConfig(dsp, params, useCache);
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: 	/**
franta-hg@1: 	 * Sets the drawingSupplier.
franta-hg@1: 	 * @param drawingSupplier The drawingSupplier to set
franta-hg@1: 	 */
franta-hg@1: 	public void setDrawingSupplier(DrawingSupplier drawingSupplier) {
franta-hg@1: 		this.drawingSupplier = drawingSupplier;
franta-hg@1: 	}
franta-hg@1: 
franta-hg@1: }