/*
* The MIT License
*
* Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.util;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.entity.EntityCollection;
import org.jfree.chart.labels.CategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.AreaRendererEndType;
import org.jfree.chart.renderer.category.CategoryItemRendererState;
import org.jfree.chart.renderer.category.StackedAreaRenderer;
import org.jfree.chart.urls.CategoryURLGenerator;
import org.jfree.data.category.CategoryDataset;
import org.jfree.ui.RectangleEdge;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Paint;
import java.awt.geom.Rectangle2D;
/**
* Modified {@link StackedAreaRenderer}.
*
* <ol>
* <li>Built-in support for {@link #generateToolTip(CategoryDataset, int, int) tooltip}
* and {@link #generateURL(CategoryDataset, int, int) hyperlinks} for clickable map.
* <li>Clickable map hit test is modified so that the entire area is clickable,
* not just the small area around each data point.
* <li>Rendering algorithm is modified so that
* {@link #getItemPaint(int, int) different color on the same data series}
* will look more natural.
* </ol>
*
* @author Kohsuke Kawaguchi
*/
public class StackedAreaRenderer2 extends StackedAreaRenderer
implements CategoryToolTipGenerator, CategoryURLGenerator {
public StackedAreaRenderer2() {
setEndType(AreaRendererEndType.TRUNCATE);
setItemURLGenerator(this);
setToolTipGenerator(this);
}
/**
* Override this method to specify the hyperlink target of the given data point.
*/
public String generateURL(CategoryDataset dataset, int row, int column) {
return null;
}
/**
* Override this method to specify the tool tip text of the given data point.
*/
public String generateToolTip(CategoryDataset dataset, int row, int column) {
return null;
}
/**
* Override this method to specify the color to draw the given area.
*/
@Override
public Paint getItemPaint(int row, int column) {
return super.getItemPaint(row, column);
}
// Mostly copied from the base class.
@Override
public void drawItem(Graphics2D g2,
CategoryItemRendererState state,
Rectangle2D dataArea,
CategoryPlot plot,
CategoryAxis domainAxis,
ValueAxis rangeAxis,
CategoryDataset dataset,
int row,
int column,
int pass) {
// plot non-null values...
Number dataValue = dataset.getValue(row, column);
if (dataValue == null) {
return;
}
double value = dataValue.doubleValue();
// leave the y values (y1, y0) untranslated as it is going to be be
// stacked up later by previous series values, after this it will be
// translated.
double xx1 = domainAxis.getCategoryMiddle(column, getColumnCount(),
dataArea, plot.getDomainAxisEdge());
double previousHeightx1 = getPreviousHeight(dataset, row, column);
double y1 = value + previousHeightx1;
RectangleEdge location = plot.getRangeAxisEdge();
double yy1 = rangeAxis.valueToJava2D(y1, dataArea, location);
g2.setPaint(getItemPaint(row, column));
g2.setStroke(getItemStroke(row, column));
// add an item entity, if this information is being collected
EntityCollection entities = state.getEntityCollection();
// in column zero, the only job to do is draw any visible item labels
// and this is done in the second pass...
if (column == 0) {
if (pass == 1) {
// draw item labels, if visible
if (isItemLabelVisible(row, column)) {
drawItemLabel(g2, plot.getOrientation(), dataset, row, column,
xx1, yy1, (y1 < 0.0));
}
}
} else {
Number previousValue = dataset.getValue(row, column - 1);
if (previousValue != null) {
double xx0 = domainAxis.getCategoryMiddle(column - 1,
getColumnCount(), dataArea, plot.getDomainAxisEdge());
double y0 = previousValue.doubleValue();
// Get the previous height, but this will be different for both
// y0 and y1 as the previous series values could differ.
double previousHeightx0 = getPreviousHeight(dataset, row,
column - 1);
// Now stack the current y values on top of the previous values.
y0 += previousHeightx0;
// Now translate the previous heights
double previousHeightxx0 = rangeAxis.valueToJava2D(
previousHeightx0, dataArea, location);
double previousHeightxx1 = rangeAxis.valueToJava2D(
previousHeightx1, dataArea, location);
// Now translate the current y values.
double yy0 = rangeAxis.valueToJava2D(y0, dataArea, location);
if (pass == 0) {
// left half
Polygon p = new Polygon();
p.addPoint((int) xx0, (int) yy0);
p.addPoint((int) (xx0+xx1)/2, (int) (yy0+yy1)/2);
p.addPoint((int) (xx0+xx1)/2, (int) (previousHeightxx0+previousHeightxx1)/2);
p.addPoint((int) xx0, (int) previousHeightxx0);
g2.setPaint(getItemPaint(row, column-1));
g2.setStroke(getItemStroke(row, column-1));
g2.fill(p);
if (entities != null)
addItemEntity(entities, dataset, row, column-1, p);
// right half
p = new Polygon();
p.addPoint((int) xx1, (int) yy1);
p.addPoint((int) (xx0+xx1)/2, (int) (yy0+yy1)/2);
p.addPoint((int) (xx0+xx1)/2, (int) (previousHeightxx0+previousHeightxx1)/2);
p.addPoint((int) xx1, (int) previousHeightxx1);
g2.setPaint(getItemPaint(row, column));
g2.setStroke(getItemStroke(row, column));
g2.fill(p);
if (entities != null)
addItemEntity(entities, dataset, row, column, p);
} else {
if (isItemLabelVisible(row, column)) {
drawItemLabel(g2, plot.getOrientation(), dataset, row,
column, xx1, yy1, (y1 < 0.0));
}
}
}
}
}
}