protected JFreeChart createPie3DChart() throws JRException {
JFreeChart jfreeChart = super.createPie3DChart();
PiePlot3D piePlot3D = (PiePlot3D) jfreeChart.getPlot();
if (piePlot3D.getLabelGenerator() != null) {
piePlot3D.setLabelBackgroundPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot3D.setLabelShadowPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot3D.setLabelOutlinePaint(ChartThemesConstants.TRANSPARENT_PAINT);
}
piePlot3D.setDarkerSides(true);
piePlot3D.setDepthFactor(0.07);
// does not work for 3D
// piePlot3D.setShadowXOffset(5);
// piePlot3D.setShadowYOffset(10);
// piePlot3D.setShadowPaint(new GradientPaint(
// 0,
// getChart().getHeight() / 2,
// new Color(41, 120, 162),
// 0,
// getChart().getHeight(),
// Color.white)
// );
PieDataset pieDataset = piePlot3D.getDataset();
if (pieDataset != null) {
for (int i = 0; i < pieDataset.getItemCount(); i++) {
piePlot3D.setSectionOutlinePaint(
pieDataset.getKey(i), ChartThemesConstants.TRANSPARENT_PAINT);
}
}
piePlot3D.setCircular(true);
return jfreeChart;
}
protected JFreeChart createPieChart() throws JRException {
JFreeChart jfreeChart = super.createPieChart();
PiePlot piePlot = (PiePlot) jfreeChart.getPlot();
if (piePlot.getLabelGenerator() != null) {
piePlot.setLabelBackgroundPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot.setLabelShadowPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot.setLabelOutlinePaint(ChartThemesConstants.TRANSPARENT_PAINT);
}
piePlot.setShadowXOffset(0);
piePlot.setShadowYOffset(0);
PieDataset pieDataset = piePlot.getDataset();
if (pieDataset != null) {
for (int i = 0; i < pieDataset.getItemCount(); i++) {
piePlot.setSectionOutlinePaint(
pieDataset.getKey(i), ChartThemesConstants.TRANSPARENT_PAINT);
// makes pie colors darker
// piePlot.setSectionPaint(pieDataset.getKey(i), GRADIENT_PAINTS[i]);
}
}
piePlot.setCircular(true);
return jfreeChart;
}
/**
* Draws the plot on a Java 2D graphics device (such as the screen or a printer).
*
* @param g2 the graphics device.
* @param area the area within which the plot should be drawn.
* @param anchor the anchor point (<code>null</code> permitted).
* @param parentState the state from the parent plot, if there is one.
* @param info collects info about the drawing.
*/
public void draw(
Graphics2D g2,
Rectangle2D area,
Point2D anchor,
PlotState parentState,
PlotRenderingInfo info) {
// adjust the drawing area for the plot insets (if any)...
RectangleInsets insets = getInsets();
insets.trim(area);
drawBackground(g2, area);
drawOutline(g2, area);
// check that there is some data to display...
if (DatasetUtilities.isEmptyOrNull(getDataset())) {
drawNoDataMessage(g2, area);
return;
}
int pieCount = 0;
if (getDataExtractOrder() == TableOrder.BY_ROW) {
pieCount = getDataset().getRowCount();
} else {
pieCount = getDataset().getColumnCount();
}
// the columns variable is always >= rows
int displayCols = (int) Math.ceil(Math.sqrt(pieCount));
int displayRows = (int) Math.ceil((double) pieCount / (double) displayCols);
// swap rows and columns to match plotArea shape
if (displayCols > displayRows && area.getWidth() < area.getHeight()) {
int temp = displayCols;
displayCols = displayRows;
displayRows = temp;
}
prefetchSectionPaints();
int x = (int) area.getX();
int y = (int) area.getY();
int width = ((int) area.getWidth()) / displayCols;
int height = ((int) area.getHeight()) / displayRows;
int row = 0;
int column = 0;
int diff = (displayRows * displayCols) - pieCount;
int xoffset = 0;
Rectangle rect = new Rectangle();
for (int pieIndex = 0; pieIndex < pieCount; pieIndex++) {
rect.setBounds(x + xoffset + (width * column), y + (height * row), width, height);
String title = null;
if (getDataExtractOrder() == TableOrder.BY_ROW) {
title = getDataset().getRowKey(pieIndex).toString();
} else {
title = getDataset().getColumnKey(pieIndex).toString();
}
getPieChart().setTitle(title);
PieDataset piedataset = null;
PieDataset dd = new CategoryToPieDataset(getDataset(), getDataExtractOrder(), pieIndex);
if (getLimit() > 0.0) {
piedataset =
DatasetUtilities.createConsolidatedPieDataset(dd, getAggregatedItemsKey(), getLimit());
} else {
piedataset = dd;
}
PiePlot piePlot = (PiePlot) getPieChart().getPlot();
piePlot.setDataset(piedataset);
piePlot.setPieIndex(pieIndex);
// update the section colors to match the global colors...
for (int i = 0; i < piedataset.getItemCount(); i++) {
Comparable key = piedataset.getKey(i);
Paint p;
if (key.equals(getAggregatedItemsKey())) {
p = getAggregatedItemsPaint();
} else {
p = (Paint) this.sectionPaints.get(key);
}
piePlot.setSectionPaint(key, p);
}
ChartRenderingInfo subinfo = null;
if (info != null) {
subinfo = new ChartRenderingInfo();
}
getPieChart().draw(g2, rect, subinfo);
if (info != null) {
info.getOwner().getEntityCollection().addAll(subinfo.getEntityCollection());
info.addSubplotInfo(subinfo.getPlotInfo());
}
++column;
if (column == displayCols) {
column = 0;
++row;
if (row == displayRows - 1 && diff != 0) {
xoffset = (diff * width) / 2;
}
}
}
}
/**
* Draws a single data item.
*
* @param g2 the graphics device (<code>null</code> not permitted).
* @param section the section index.
* @param dataArea the data plot area.
* @param state state information for one chart.
* @param currentPass the current pass index.
*/
protected void drawItem(
Graphics2D g2, int section, Rectangle2D dataArea, PiePlotState state, int currentPass) {
PieDataset dataset = getDataset();
Number n = dataset.getValue(section);
if (n == null) {
return;
}
double value = n.doubleValue();
double angle1 = 0.0;
double angle2 = 0.0;
Rotation direction = getDirection();
if (direction == Rotation.CLOCKWISE) {
angle1 = state.getLatestAngle();
angle2 = angle1 - value / state.getTotal() * 360.0;
} else if (direction == Rotation.ANTICLOCKWISE) {
angle1 = state.getLatestAngle();
angle2 = angle1 + value / state.getTotal() * 360.0;
} else {
throw new IllegalStateException("Rotation type not recognised.");
}
double angle = (angle2 - angle1);
if (Math.abs(angle) > getMinimumArcAngleToDraw()) {
double ep = 0.0;
double mep = getMaximumExplodePercent();
if (mep > 0.0) {
ep = getExplodePercent(section) / mep;
}
Rectangle2D arcBounds =
getArcBounds(state.getPieArea(), state.getExplodedPieArea(), angle1, angle, ep);
Arc2D.Double arc = new Arc2D.Double(arcBounds, angle1, angle, Arc2D.OPEN);
// create the bounds for the inner arc
RectangleInsets s =
new RectangleInsets(
UnitType.RELATIVE, sectionDepth, sectionDepth, sectionDepth, sectionDepth);
Rectangle2D innerArcBounds = new Rectangle2D.Double();
innerArcBounds.setRect(arcBounds);
s.trim(innerArcBounds);
// calculate inner arc in reverse direction, for later
// GeneralPath construction
Arc2D.Double arc2 = new Arc2D.Double(innerArcBounds, angle1 + angle, -angle, Arc2D.OPEN);
GeneralPath path = new GeneralPath();
path.moveTo((float) arc.getStartPoint().getX(), (float) arc.getStartPoint().getY());
path.append(arc.getPathIterator(null), false);
path.append(arc2.getPathIterator(null), true);
path.closePath();
Line2D separator = new Line2D.Double(arc2.getEndPoint(), arc.getStartPoint());
if (currentPass == 0) {
Paint shadowPaint = getShadowPaint();
double shadowXOffset = getShadowXOffset();
double shadowYOffset = getShadowYOffset();
if (shadowPaint != null) {
Shape shadowArc =
ShapeUtilities.createTranslatedShape(
path, (float) shadowXOffset, (float) shadowYOffset);
g2.setPaint(shadowPaint);
g2.fill(shadowArc);
}
} else if (currentPass == 1) {
Paint paint = getSectionPaint(section);
g2.setPaint(paint);
g2.fill(path);
Paint outlinePaint = getSectionOutlinePaint(section);
Stroke outlineStroke = getSectionOutlineStroke(section);
if (getSectionOutlinesVisible()) {
g2.setPaint(outlinePaint);
g2.setStroke(outlineStroke);
g2.draw(path);
}
// add an entity for the pie section
if (state.getInfo() != null) {
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
Comparable key = dataset.getKey(section);
String tip = null;
PieToolTipGenerator toolTipGenerator = getToolTipGenerator();
if (toolTipGenerator != null) {
tip = toolTipGenerator.generateToolTip(dataset, key);
}
String url = null;
PieURLGenerator urlGenerator = getURLGenerator();
if (urlGenerator != null) {
url = urlGenerator.generateURL(dataset, key, getPieIndex());
}
PieSectionEntity entity =
new PieSectionEntity(path, dataset, getPieIndex(), section, key, tip, url);
entities.add(entity);
}
}
} else if (currentPass == 2) {
// if there were 3 passes...
if (this.sectionSeparatorsVisible) {
Line2D extendedSeparator =
extendLine(separator, this.innerSeparatorExtension, this.outerSeparatorExtension);
g2.setStroke(this.separatorStroke);
g2.setPaint(this.separatorPaint);
g2.draw(extendedSeparator);
}
}
}
state.setLatestAngle(angle2);
}