ingo@2072: package de.intevation.flys.exports;
ingo@2072: 
ingo@2072: import java.awt.Graphics2D;
ingo@2072: import java.awt.Shape;
ingo@2072: import java.awt.geom.Rectangle2D;
ingo@2072: 
ingo@2072: import org.apache.log4j.Logger;
ingo@2072: 
ingo@2072: import org.jfree.chart.axis.ValueAxis;
ingo@2072: import org.jfree.chart.entity.EntityCollection;
ingo@2072: import org.jfree.chart.plot.CrosshairState;
ingo@2072: import org.jfree.chart.plot.PlotOrientation;
ingo@2072: import org.jfree.chart.plot.XYPlot;
ingo@2072: import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
ingo@2072: import org.jfree.data.xy.XYDataset;
ingo@2072: import org.jfree.ui.RectangleEdge;
ingo@2072: import org.jfree.util.BooleanList;
ingo@2072: import org.jfree.util.ShapeUtilities;
ingo@2072: 
ingo@2072: 
ingo@2072: public class EnhancedLineAndShapeRenderer extends XYLineAndShapeRenderer {
ingo@2072: 
ingo@2072:     private static final Logger logger =
ingo@2072:         Logger.getLogger(EnhancedLineAndShapeRenderer.class);
ingo@2072: 
ingo@2072:     protected BooleanList isMinimumShapeVisible;
ingo@2072:     protected BooleanList isMaximumShapeVisible;
ingo@2072: 
ingo@2072: 
ingo@2072:     public EnhancedLineAndShapeRenderer(boolean lines, boolean shapes) {
ingo@2072:         super(lines, shapes);
ingo@2072:         this.isMinimumShapeVisible = new BooleanList();
ingo@2072:         this.isMaximumShapeVisible = new BooleanList();
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public boolean getItemShapeVisible(XYDataset dataset, int series, int item){
ingo@2072:         if (super.getItemShapeVisible(series, item)) {
ingo@2072:             logger.debug("Items are visible.");
ingo@2072:             return true;
ingo@2072:         }
ingo@2072: 
ingo@2072:         if (isMinimumShapeVisible(series) && isMinimum(dataset, series, item)) {
ingo@2072:             logger.debug("Minimum is visible for series: " + series);
ingo@2072:             return true;
ingo@2072:         }
ingo@2072: 
ingo@2072:         if (isMaximumShapeVisible(series) && isMaximum(dataset, series, item)) {
ingo@2072:             logger.debug("Maximum is visible for series: " + series);
ingo@2072:             return true;
ingo@2072:         }
ingo@2072: 
ingo@2072:         logger.debug("Nothing is visible at all.");
ingo@2072: 
ingo@2072:         return false;
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     /**
ingo@2072:      * Overrides XYLineAndShapeRenderer.drawSecondaryPass() to call an adapted
ingo@2072:      * method getItemShapeVisible() which now takes an XYDataset. So, 99% of
ingo@2072:      * code equal the code in XYLineAndShapeRenderer.
ingo@2072:      */
ingo@2072:     @Override
ingo@2072:     protected void drawSecondaryPass(
ingo@2072:         Graphics2D       g2,
ingo@2072:         XYPlot           plot,
ingo@2072:         XYDataset        dataset,
ingo@2072:         int              pass,
ingo@2072:         int              series,
ingo@2072:         int              item,
ingo@2072:         ValueAxis        domainAxis,
ingo@2072:         Rectangle2D      dataArea,
ingo@2072:         ValueAxis        rangeAxis,
ingo@2072:         CrosshairState   crosshairState,
ingo@2072:         EntityCollection entities
ingo@2072:     ) {
ingo@2072:         logger.debug("Draw secondary pass");
ingo@2072:         Shape entityArea = null;
ingo@2072: 
ingo@2072:         // get the data point...
ingo@2072:         double x1 = dataset.getXValue(series, item);
ingo@2072:         double y1 = dataset.getYValue(series, item);
ingo@2072:         if (Double.isNaN(y1) || Double.isNaN(x1)) {
ingo@2072:             return;
ingo@2072:         }
ingo@2072: 
ingo@2072:         PlotOrientation orientation = plot.getOrientation();
ingo@2072:         RectangleEdge xAxisLocation = plot.getDomainAxisEdge();
ingo@2072:         RectangleEdge yAxisLocation = plot.getRangeAxisEdge();
ingo@2072:         double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation);
ingo@2072:         double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation);
ingo@2072: 
ingo@2072:         if (getItemShapeVisible(dataset, series, item)) {
ingo@2072:             Shape shape = getItemShape(series, item);
ingo@2072:             if (orientation == PlotOrientation.HORIZONTAL) {
ingo@2072:                 shape = ShapeUtilities.createTranslatedShape(shape, transY1,
ingo@2072:                         transX1);
ingo@2072:             }
ingo@2072:             else if (orientation == PlotOrientation.VERTICAL) {
ingo@2072:                 shape = ShapeUtilities.createTranslatedShape(shape, transX1,
ingo@2072:                         transY1);
ingo@2072:             }
ingo@2072:             entityArea = shape;
ingo@2072:             if (shape.intersects(dataArea)) {
ingo@2072:                 if (getItemShapeFilled(series, item)) {
ingo@2072:                     if (getUseFillPaint()) {
ingo@2072:                         g2.setPaint(getItemFillPaint(series, item));
ingo@2072:                     }
ingo@2072:                     else {
ingo@2072:                         g2.setPaint(getItemPaint(series, item));
ingo@2072:                     }
ingo@2072:                     g2.fill(shape);
ingo@2072:                 }
ingo@2072:                 if (getDrawOutlines()) {
ingo@2072:                     if (getUseOutlinePaint()) {
ingo@2072:                         g2.setPaint(getItemOutlinePaint(series, item));
ingo@2072:                     }
ingo@2072:                     else {
ingo@2072:                         g2.setPaint(getItemPaint(series, item));
ingo@2072:                     }
ingo@2072:                     g2.setStroke(getItemOutlineStroke(series, item));
ingo@2072:                     g2.draw(shape);
ingo@2072:                 }
ingo@2072:             }
ingo@2072:         }
ingo@2072: 
ingo@2072:         double xx = transX1;
ingo@2072:         double yy = transY1;
ingo@2072:         if (orientation == PlotOrientation.HORIZONTAL) {
ingo@2072:             xx = transY1;
ingo@2072:             yy = transX1;
ingo@2072:         }
ingo@2072: 
ingo@2072:         // draw the item label if there is one...
ingo@2072:         if (isItemLabelVisible(series, item)) {
ingo@2072:             drawItemLabel(g2, orientation, dataset, series, item, xx, yy,
ingo@2072:                     (y1 < 0.0));
ingo@2072:         }
ingo@2072: 
ingo@2072:         int domainAxisIndex = plot.getDomainAxisIndex(domainAxis);
ingo@2072:         int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis);
ingo@2072:         updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex,
ingo@2072:                 rangeAxisIndex, transX1, transY1, orientation);
ingo@2072: 
ingo@2072:         // add an entity for the item, but only if it falls within the data
ingo@2072:         // area...
ingo@2072:         if (entities != null && isPointInRect(dataArea, xx, yy)) {
ingo@2072:             addEntity(entities, entityArea, dataset, series, item, xx, yy);
ingo@2072:         }
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public void setIsMinimumShapeVisisble(int series, boolean isVisible) {
ingo@2072:         this.isMinimumShapeVisible.setBoolean(series, isVisible);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public boolean isMinimumShapeVisible(int series) {
ingo@2072:         return isMinimumShapeVisible.getBoolean(series);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public void setIsMaximumShapeVisible(int series, boolean isVisible) {
ingo@2072:         this.isMaximumShapeVisible.setBoolean(series, isVisible);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public boolean isMaximumShapeVisible(int series) {
ingo@2072:         return isMaximumShapeVisible.getBoolean(series);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public static boolean isMinimum(XYDataset dataset, int series, int item) {
ingo@2072:         return dataset.getYValue(series, item) == getMinimum(dataset, series);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public static double getMinimum(XYDataset dataset, int series) {
ingo@2072:         double min = Double.MAX_VALUE;
ingo@2072: 
ingo@2072:         for (int i = 0, n = dataset.getItemCount(series); i < n; i++) {
ingo@2072:             double tmpValue = dataset.getYValue(series, i);
ingo@2072: 
ingo@2072:             if (tmpValue < min) {
ingo@2072:                 min = tmpValue;
ingo@2072:             }
ingo@2072:         }
ingo@2072: 
ingo@2072:         return min;
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public static boolean isMaximum(XYDataset dataset, int series, int item) {
ingo@2072:         return dataset.getYValue(series, item) == getMaximum(dataset, series);
ingo@2072:     }
ingo@2072: 
ingo@2072: 
ingo@2072:     public static double getMaximum(XYDataset dataset, int series) {
ingo@2072:         double max = -Double.MAX_VALUE;
ingo@2072: 
ingo@2072:         for (int i = 0, n = dataset.getItemCount(series); i < n; i++) {
ingo@2072:             double tmpValue = dataset.getYValue(series, i);
ingo@2072: 
ingo@2072:             if (tmpValue > max) {
ingo@2072:                 max = tmpValue;
ingo@2072:             }
ingo@2072:         }
ingo@2072: 
ingo@2072:         return max;
ingo@2072:     }
ingo@2072: }
ingo@2072: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :