ingo@297: package de.intevation.gnv.chart;
ingo@297: 
ingo@297: import java.util.Collection;
ingo@297: import java.util.Locale;
ingo@297: import java.awt.Transparency;
ingo@297: import java.awt.image.BufferedImage;
ingo@297: 
ingo@297: import org.apache.log4j.Logger;
ingo@297: 
ingo@297: import org.jfree.chart.JFreeChart;
ingo@297: import org.jfree.chart.ChartTheme;
ingo@297: 
ingo@297: /**
ingo@297:  * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
ingo@297:  */
ingo@297: public abstract class AbstractChart
ingo@297: implements            Chart
ingo@297: {
ingo@297:     private static Logger log = Logger.getLogger(AbstractChart.class);
ingo@297: 
ingo@297:     protected JFreeChart  chart;
ingo@297: 
ingo@297:     protected Locale      locale;
ingo@297: 
ingo@297:     protected ChartLabels labels;
ingo@297:     protected ChartTheme  theme;
ingo@297:     protected Collection  parameters;
ingo@297:     protected Collection  measurements;
ingo@297:     protected Collection  resultSet;
ingo@297:     protected Collection  dates;
ingo@297: 
ingo@297:     public abstract JFreeChart generateChart();
ingo@297: 
ingo@303:     public BufferedImage exportImage(int width, int height) {
ingo@297:         log.info("export chart as png");
ingo@297: 
ingo@297:         return chart.createBufferedImage(
ingo@297:             width, height, Transparency.BITMASK, null);
ingo@297:     }
ingo@297: 
ingo@297:     public void exportSVG() {
ingo@297:         log.info("export chart as svg (not implemented yet)");
ingo@297:     }
ingo@297: 
ingo@297:     public void exportPDF() {
ingo@297:         log.info("export chart as pdf (not implemented yet)");
ingo@297:     }
ingo@297: }
ingo@297: // vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 :