/**
* Creates an image map element that complies with the XHTML 1.0 specification.
*
* @param name the map name (<code>null</code> not permitted).
* @param info the chart rendering info (<code>null</code> not permitted).
* @param toolTipTagFragmentGenerator a generator for the HTML fragment that will contain the
* tooltip text (<code>null</code> not permitted if <code>info</code> contains tooltip
* information).
* @param urlTagFragmentGenerator a generator for the HTML fragment that will contain the URL
* reference (<code>null</code> not permitted if <code>info</code> contains URLs).
* @return The map tag.
*/
public static String getImageMap(
String name,
ChartRenderingInfo info,
ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
URLTagFragmentGenerator urlTagFragmentGenerator) {
StringBuilder sb = new StringBuilder();
sb.append("<map id=\"").append(htmlEscape(name));
sb.append("\" name=\"").append(htmlEscape(name)).append("\">");
sb.append(StringUtils.getLineSeparator());
EntityCollection entities = info.getEntityCollection();
if (entities != null) {
int count = entities.getEntityCount();
for (int i = count - 1; i >= 0; i--) {
ChartEntity entity = entities.getEntity(i);
if (entity.getToolTipText() != null || entity.getURLText() != null) {
String area =
entity.getImageMapAreaTag(toolTipTagFragmentGenerator, urlTagFragmentGenerator);
if (area.length() > 0) {
sb.append(area);
sb.append(StringUtils.getLineSeparator());
}
}
}
}
sb.append("</map>");
return sb.toString();
}
private void populateInfo(final ChartRenderingInfo info) {
if (urlTemplate == null) {
return;
}
Iterator iter = info.getEntityCollection().iterator();
while (iter.hasNext()) {
ChartEntity entity = (ChartEntity) iter.next();
if (entity instanceof XYItemEntity) {
if (urlTemplate != null) {
XYItemEntity xyItemEntity = (XYItemEntity) entity;
if (paramName == null) {
xyItemEntity.setURLText(urlTemplate);
} else {
try {
int seriesIndex = xyItemEntity.getSeriesIndex();
int itemIndex = xyItemEntity.getItem();
String xySeriesKey =
(String)
((XYZSeriesCollectionChartDefinition) xyItemEntity.getDataset())
.getSeriesKey(seriesIndex);
String encodedVal = URLEncoder.encode(xySeriesKey, LocaleHelper.getSystemEncoding());
String drillURL = TemplateUtil.applyTemplate(urlTemplate, paramName, encodedVal);
String itemValueStr =
((XYZSeriesCollectionChartDefinition) xyItemEntity.getDataset())
.getX(seriesIndex, itemIndex)
.toString();
encodedVal = URLEncoder.encode(itemValueStr, LocaleHelper.getSystemEncoding());
if (seriesName == null) {
drillURL =
TemplateUtil.applyTemplate(drillURL, "SERIES", encodedVal); // $NON-NLS-1$
} else {
drillURL = TemplateUtil.applyTemplate(drillURL, seriesName, encodedVal);
}
xyItemEntity.setURLText(drillURL);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
/**
* 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;
}
}
}
}
