/**
* 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();
}
/* (non-Javadoc)
* @see javax.swing.JComponent#paintComponent(java.awt.Graphics)
*/
@Override
public void paint(Graphics g) {
super.paint(g);
if (rect != null) {
Graphics2D g2d = (Graphics2D) g;
g2d.setColor(Color.RED);
adjustRect(rect);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setStroke(lineStroke);
if (boundings == null) {
boundings = new Rectangle[4];
if (entities == null) {
entities = new ArrayList<CategoryItemEntity>();
EntityCollection entCol = chartPanel.getChartRenderingInfo().getEntityCollection();
for (int i = 0; i < entCol.getEntityCount(); i++) {
ChartEntity ce = (ChartEntity) entCol.getEntity(i);
if (ce instanceof CategoryItemEntity) {
CategoryItemEntity cie = (CategoryItemEntity) ce;
Rectangle r = adjustRect(cie.getArea().getBounds());
if (r.height > maxHeight) {
maxHeight = (int) cie.getArea().getBounds().getHeight();
maxY = r.y;
}
entities.add(cie);
}
}
}
int half = (entities.size() - 1) / 2;
boundings[0] = getEntityPoint(entities, 0);
boundings[1] = getEntityPoint(entities, half);
boundings[2] = getEntityPoint(entities, half + 1);
boundings[3] = getEntityPoint(entities, entities.size() - 1);
int[] inxs = new int[] {0, half, half + 1, entities.size() - 1};
currEntities = new CategoryItemEntity[4];
for (int i = 0; i < inxs.length; i++) {
currEntities[i] = entities.get(inxs[i]);
}
}
for (Rectangle r : boundings) {
g.drawImage(
thumb.getImage(),
r.x - (thumb.getIconWidth() / 2) + 2,
r.y + r.height - thumb.getIconHeight(),
null);
}
int x = (int) ((double) boundings[0].x * 1); // chartPanel.getScaleX());
int w = (int) ((double) (boundings[1].x - boundings[0].x) * 1); // chartPanel.getScaleX());
// int y = (int)((double)maxY * chartPanel.getScaleY());
int h = (int) ((double) maxHeight * chartPanel.getScaleY());
g2d.setColor(new Color(255, 255, 255, 64));
g2d.fillRect(x + 2, maxY, w, h);
x = (int) ((double) boundings[2].x * 1); // chartPanel.getScaleX());
w = (int) ((double) (boundings[3].x - boundings[2].x) * 1); // chartPanel.getScaleX());
g2d.setColor(new Color(255, 255, 255, 64));
g2d.fillRect(x + 2, maxY, w, h);
}
}