ingo@359: package de.intevation.flys.exports;
ingo@359: 
felix@1028: import java.util.ArrayList;
felix@1028: import java.util.List;
felix@1028: 
ingo@359: import org.apache.log4j.Logger;
ingo@359: 
ingo@375: import org.jfree.chart.JFreeChart;
ingo@1677: import org.jfree.chart.LegendItem;
ingo@1677: import org.jfree.chart.LegendItemCollection;
ingo@375: import org.jfree.chart.axis.NumberAxis;
ingo@422: import org.jfree.chart.axis.ValueAxis;
ingo@375: import org.jfree.chart.plot.XYPlot;
ingo@414: import org.jfree.chart.title.TextTitle;
ingo@720: import org.jfree.data.Range;
ingo@369: import org.jfree.data.xy.XYSeries;
felix@1034: import org.jfree.ui.TextAnchor;
ingo@364: 
ingo@359: import org.w3c.dom.Document;
ingo@359: 
ingo@359: import de.intevation.artifacts.Artifact;
ingo@359: 
ingo@695: import de.intevation.artifactdatabase.state.Facet;
ingo@695: 
ingo@422: import de.intevation.flys.artifacts.FLYSArtifact;
sascha@706: 
ingo@696: import de.intevation.flys.artifacts.model.FacetTypes;
ingo@364: import de.intevation.flys.artifacts.model.WQKms;
ingo@364: 
ingo@1677: import de.intevation.flys.jfree.FLYSAnnotation;
ingo@1667: import de.intevation.flys.jfree.StickyAxisAnnotation;
felix@1028: import de.intevation.flys.model.Annotation;
ingo@1667: import de.intevation.flys.utils.FLYSUtils;
ingo@359: 
felix@1035: 
felix@1035: /**
ingo@359:  * An OutGenerator that generates discharge curves.
ingo@359:  *
ingo@359:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@359:  */
ingo@696: public class LongitudinalSectionGenerator
ingo@696: extends      XYChartGenerator
ingo@696: implements   FacetTypes
ingo@696: {
felix@1037:     /** The logger that is used in this generator. */
ingo@359:     private static Logger logger =
ingo@359:         Logger.getLogger(LongitudinalSectionGenerator.class);
ingo@359: 
ingo@408:     public static final String I18N_CHART_TITLE =
ingo@408:         "chart.longitudinal.section.title";
ingo@408: 
felix@1041:     public static final String I18N_ANNOTATIONS_LABEL =
felix@1041:         "chart.longitudinal.annotations.label";
felix@1041: 
ingo@414:     public static final String I18N_CHART_SUBTITLE =
ingo@414:         "chart.longitudinal.section.subtitle";
ingo@414: 
ingo@408:     public static final String I18N_XAXIS_LABEL =
ingo@408:         "chart.longitudinal.section.xaxis.label";
ingo@408: 
ingo@408:     public static final String I18N_YAXIS_LABEL =
ingo@408:         "chart.longitudinal.section.yaxis.label";
ingo@408: 
ingo@408:     public static final String I18N_2YAXIS_LABEL =
ingo@408:         "chart.longitudinal.section.yaxis.second.label";
ingo@408: 
sascha@664:     public static final String I18N_CHART_TITLE_DEFAULT  = "W-L\u00e4ngsschnitt";
ingo@408:     public static final String I18N_XAXIS_LABEL_DEFAULT  = "km";
ingo@408:     public static final String I18N_YAXIS_LABEL_DEFAULT  = "W [NN + m]";
sascha@664:     public static final String I18N_2YAXIS_LABEL_DEFAULT = "Q [m\u00b3/s]";
ingo@369: 
ingo@364: 
sascha@745:     protected boolean inverted;
sascha@745: 
felix@1041:     /** List of annotations to insert in plot. */
ingo@1677:     protected List<FLYSAnnotation> annotations;
felix@1041: 
felix@1041: 
ingo@359:     public LongitudinalSectionGenerator() {
ingo@359:         super();
ingo@1677:         annotations = new ArrayList<FLYSAnnotation>();
ingo@369:     }
ingo@369: 
ingo@369: 
ingo@369:     protected String getChartTitle() {
ingo@408:         return msg(I18N_CHART_TITLE, I18N_CHART_TITLE_DEFAULT);
ingo@369:     }
ingo@369: 
sascha@745:     public boolean isInverted() {
sascha@745:         return inverted;
sascha@745:     }
sascha@745: 
sascha@745:     public void setInverted(boolean inverted) {
sascha@745:         this.inverted = inverted;
sascha@745:     }
ingo@369: 
ingo@414:     @Override
ingo@414:     protected void addSubtitles(JFreeChart chart) {
ingo@414:         double[] dist  = getRange();
ingo@414: 
ingo@414:         Object[] args = new Object[] {
ingo@414:             getRiverName(),
ingo@414:             dist[0],
ingo@414:             dist[1]
ingo@414:         };
ingo@414: 
ingo@414:         String subtitle = msg(I18N_CHART_SUBTITLE, "", args);
ingo@414:         chart.addSubtitle(new TextTitle(subtitle));
ingo@414:     }
ingo@414: 
felix@1028:     @Override
felix@1028:     public JFreeChart generateChart() {
felix@1028:         JFreeChart c = super.generateChart();
felix@1028:         XYPlot p = (XYPlot) c.getPlot();
felix@1028: 
felix@1034:         redoAnnotations(p, p.getDomainAxis());
felix@1034: 
felix@1028:         return c;
felix@1028:     }
felix@1028: 
ingo@414: 
ingo@369:     protected String getXAxisLabel() {
ingo@1667:         FLYSArtifact flys = (FLYSArtifact) master;
ingo@1667: 
ingo@1667:         return msg(
ingo@1667:             I18N_XAXIS_LABEL,
ingo@1667:             I18N_XAXIS_LABEL_DEFAULT,
ingo@1667:             new Object[] { FLYSUtils.getRiver(flys).getName() });
ingo@369:     }
ingo@369: 
ingo@369: 
ingo@369:     protected String getYAxisLabel() {
ingo@1667:         FLYSArtifact flys = (FLYSArtifact) master;
ingo@1667: 
ingo@1673:         String unit = FLYSUtils.getRiver(flys).getWstUnit().getName();
ingo@1667: 
ingo@1667:         return msg(
ingo@1667:             I18N_YAXIS_LABEL,
ingo@1667:             I18N_YAXIS_LABEL_DEFAULT,
ingo@1667:             new Object[] { unit });
ingo@369:     }
ingo@369: 
ingo@369: 
ingo@375:     protected void adjustAxes(XYPlot plot) {
ingo@375:         super.adjustAxes(plot);
ingo@375: 
ingo@408:         NumberAxis qAxis = new NumberAxis(
ingo@408:             msg(I18N_2YAXIS_LABEL, I18N_2YAXIS_LABEL_DEFAULT));
ingo@375: 
ingo@666:         plot.setRangeAxis(1, qAxis);
ingo@422: 
ingo@422:         invertXAxis(plot.getDomainAxis());
ingo@422:     }
ingo@422: 
ingo@422: 
ingo@422:     /**
felix@1034:      * Remove all annotations from plot and re-insert them at an approximately
felix@1034:      * okay position. The followed approach is naive but side-effect free.
felix@1037:      *
felix@1037:      * @param plot the plot.
felix@1037:      * @param axis the value axis.
felix@1034:      */
felix@1034:     protected void redoAnnotations(XYPlot plot, ValueAxis axis) {
felix@1034:         plot.clearAnnotations();
felix@1037:         // TODO Position calculation could/should be done in
felix@1038:         // the StickyAxisAnnotation-Implementation itself.
ingo@1677: 
ingo@1677:         int idx = 0;
ingo@1677:         ValueAxis yAxis = plot.getRangeAxis(idx);
ingo@1677: 
ingo@1677:         if (yAxis == null) {
ingo@1677:             if (plot.getRangeAxisCount() >= 2) {
ingo@1677:                 yAxis = plot.getRangeAxis(++idx);
ingo@1677:             }
ingo@1677:         }
ingo@1677: 
ingo@1677:         if (yAxis == null) {
ingo@1677:             // XXX There is no y-axis that might be used to add annotations. If
ingo@1677:             // we absolutely want to display annotations, we need to create a
ingo@1677:             // virtual dataset for an axis.
ingo@1677:             return;
ingo@1677:         }
ingo@1677: 
felix@1034:         float posY = 140.f;
ingo@1677:         posY = (float) yAxis.getRange().getLowerBound();
ingo@1677:         // Add some (2%) space between Text and axis.
ingo@1677:         posY += 0.02f * (yAxis.getRange().getUpperBound()
ingo@1677:                 - yAxis.getRange().getLowerBound());
ingo@1677: 
ingo@1677:         LegendItemCollection lic = plot.getLegendItems();
felix@1034: 
felix@1036:         // Add all annotations.
ingo@1677:         for (FLYSAnnotation fa: annotations) {
ingo@1677:             lic.add(new LegendItem(fa.getLabel()));
felix@1034: 
ingo@1677:             for (Annotation a: fa.getAnnotations()) {
ingo@1677:                 float posX = (float) a.getRange().getA().doubleValue();
ingo@1677:                 String text = a.getPosition().getValue();
ingo@1677: 
ingo@1677:                 StickyAxisAnnotation ta = new StickyAxisAnnotation(
ingo@1677:                     text,
ingo@1677:                     posX,
ingo@1677:                     posY);
ingo@1677: 
ingo@1677:                 double rotation = 270.0f * (Math.PI / 180.0f);
ingo@1677:                 ta.setRotationAngle(rotation);
ingo@1677:                 ta.setRotationAnchor(TextAnchor.CENTER_LEFT);
ingo@1677:                 ta.setTextAnchor(TextAnchor.CENTER_LEFT);
ingo@1677:                 plot.getRenderer(idx).addAnnotation(ta);
ingo@1677:             }
felix@1034:         }
ingo@1677: 
ingo@1677:         plot.setFixedLegendItems(lic);
felix@1034:     }
felix@1034: 
felix@1034: 
felix@1034:     /**
felix@1653:      * Create a range that includes 0 (for the Q axis).
felix@1653:      * @param range range with which to look up upper bound.
felix@1653:      * @return range with 0 included.
felix@1653:      */
felix@1653:     protected Range createSecondAxisRange(Range range) {
felix@1653:        return new Range(0d, range.getUpperBound());
felix@1653:     }
felix@1653: 
felix@1653: 
felix@1653:     /**
felix@1653:      * This method overrides the XYChartGenerators zoomY method to be able to
felix@1653:      * modify the range of the Q axis (here, it shall include 0).
ingo@720:      */
ingo@720:     @Override
ingo@720:     protected boolean zoomY(XYPlot plot, ValueAxis axis, Range range, Range x) {
ingo@734:         if (plot.getRangeAxisIndex(axis) == 1) {
felix@1653:             // We want the Q axis to start at 0 if no zooming has been done.
felix@1653:             range = createSecondAxisRange(range);
ingo@720:         }
ingo@720: 
ingo@734:         return super.zoomY(plot, axis, range, x);
ingo@720:     }
ingo@720: 
ingo@720: 
ingo@720:     /**
ingo@422:      * This method inverts the x-axis based on the kilometer information of the
ingo@422:      * selected river. If the head of the river is at kilometer 0, the axis is
ingo@422:      * not inverted, otherwise it is.
ingo@422:      *
ingo@422:      * @param xaxis The domain axis.
ingo@422:      */
ingo@422:     protected void invertXAxis(ValueAxis xaxis) {
ingo@422: 
sascha@745:         if (inverted) {
sascha@745:             logger.debug("Invert X-Axis.");
ingo@422:             xaxis.setInverted(true);
ingo@422:         }
ingo@359:     }
ingo@359: 
ingo@359: 
ingo@695:     public void doOut(Artifact artifact, Facet facet, Document attr) {
ingo@695:         String name = facet.getName();
ingo@359: 
ingo@695:         logger.debug("LongitudinalSectionGenerator.doOut: " + name);
ingo@695: 
ingo@695:         if (name == null) {
ingo@369:             logger.error("No facet name for doOut(). No output generated!");
ingo@369:             return;
ingo@369:         }
ingo@369: 
ingo@696:         FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@696:         Facet        f    = flys.getNativeFacet(facet);
ingo@696: 
ingo@696:         if (f == null) {
ingo@696:             return;
ingo@369:         }
ingo@696: 
ingo@696:         if (name.equals(LONGITUDINAL_W)) {
ingo@924:             doWOut((WQKms) f.getData(artifact, context), attr);
ingo@696:         }
ingo@696:         else if (name.equals(LONGITUDINAL_Q)) {
ingo@924:             doQOut((WQKms) f.getData(artifact, context), attr);
ingo@369:         }
felix@1028:         else if (name.equals(LONGITUDINAL_ANNOTATION)) {
felix@1028:             doAnnotationsOut(f.getData(artifact, context), attr);
felix@1028:         }
ingo@369:         else {
ingo@695:             logger.warn("Unknown facet name: " + name);
ingo@369:             return;
ingo@369:         }
ingo@369:     }
ingo@369: 
ingo@369: 
felix@1037:     /**
felix@1037:      * Register annotations available for the diagram.
felix@1037:      *
felix@1037:      * @param o     list of annotations (data of facet).
felix@1041:      * @param theme yet ignored.
felix@1037:      */
felix@1028:     protected void doAnnotationsOut(Object o, Document theme) {
felix@1028:         logger.debug("LongitudinalSectionGenerator.doAnnotationsOut");
felix@1041: 
ingo@1677:         // Add all annotations in list o to our annotation pool.
ingo@1677:         FLYSAnnotation fa = (FLYSAnnotation) o;
ingo@1677:         annotations.add(fa);
felix@1028:     }
felix@1028: 
felix@1028: 
ingo@369:     /**
ingo@369:      * Process the output for W facets in a longitudinal section curve.
ingo@369:      *
ingo@369:      * @param wqkms An array of WQKms values.
ingo@924:      * @param theme The theme that contains styling information.
ingo@369:      */
ingo@924:     protected void doWOut(WQKms wqkms, Document theme) {
ingo@369:         logger.debug("LongitudinalSectionGenerator.doWOut");
ingo@359: 
ingo@924:         XYSeries series = new StyledXYSeries(getSeriesName(wqkms, "W"), theme);
ingo@369: 
sascha@719:         int size = wqkms.size();
ingo@696: 
ingo@696:         if (logger.isDebugEnabled()) {
ingo@696:             if (wqkms.size() > 0) {
ingo@696:                 logger.debug("Generate series: " + series.getKey());
sascha@925:                 logger.debug("Start km: " + wqkms.getKm(0));
sascha@925:                 logger.debug("End   km: " + wqkms.getKm(size-1));
ingo@696:                 logger.debug("Values  : " + size);
ingo@369:             }
ingo@696:         }
ingo@369: 
ingo@696:         for (int i = 0; i < size; i++) {
sascha@925:             series.add(wqkms.getKm(i), wqkms.getW(i));
ingo@369:         }
ingo@696: 
ingo@923:         addFirstAxisSeries(series);
sascha@745: 
sascha@745:         if (wqkms.guessWaterIncreasing()) {
sascha@745:             setInverted(true);
sascha@745:         }
ingo@369:     }
ingo@369: 
ingo@369: 
ingo@369:     /**
ingo@369:      * Process the output for Q facets in a longitudinal section curve.
ingo@369:      *
ingo@369:      * @param wqkms An array of WQKms values.
ingo@924:      * @param theme The theme that contains styling information.
ingo@369:      */
ingo@924:     protected void doQOut(WQKms wqkms, Document theme) {
ingo@369:         logger.debug("LongitudinalSectionGenerator.doQOut");
ingo@369: 
ingo@924:         XYSeries series = new StyledXYSeries(getSeriesName(wqkms, "Q"), theme);
ingo@369: 
sascha@719:         int size = wqkms.size();
ingo@369: 
ingo@696:         if (logger.isDebugEnabled()) {
ingo@696:             if (wqkms.size() > 0) {
ingo@696:                 logger.debug("Generate series: " + series.getKey());
sascha@925:                 logger.debug("Start km: " + wqkms.getKm(0));
sascha@925:                 logger.debug("End   km: " + wqkms.getKm(size-1));
ingo@696:                 logger.debug("Values  : " + size);
ingo@696:             }
ingo@696:         }
ingo@369: 
ingo@696:         for (int i = 0; i < size; i++) {
sascha@925:             series.add(wqkms.getKm(i), wqkms.getQ(i));
ingo@369:         }
ingo@696: 
ingo@923:         addSecondAxisSeries(series);
sascha@745: 
sascha@745:         if (wqkms.guessWaterIncreasing()) {
sascha@745:             setInverted(true);
sascha@745:         }
ingo@369:     }
ingo@369: 
ingo@369: 
felix@1041:     /**
felix@1041:      * Get name of series (displayed in legend).
felix@1041:      * @return name of the series.
felix@1041:      */
ingo@448:     protected String getSeriesName(WQKms wqkms, String mode) {
ingo@448:         String name   = wqkms.getName();
ingo@448:         String prefix = name != null && name.indexOf(mode) >= 0 ? null : mode;
ingo@448: 
ingo@448:         return prefix != null && prefix.length() > 0
ingo@448:             ? prefix + "(" + name +")"
ingo@448:             : name;
ingo@359:     }
ingo@359: }
ingo@359: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :