application/org.openjdk.jmc.ui/src/main/java/org/openjdk/jmc/ui/charts/QuantitySpanRenderer.java

*** 58,82 ****
          private final Paint paint;
          private final int minOutlineHeight;
          private final IXDataRenderer content;
          private final String text;
          private final String description;
  
          public QuantitySpanRenderer(IQuantitySeries<?> ranges, IXDataRenderer content, Paint paint, int minOutlineHeight,
!                         String text, String description) {
                  this.ranges = ranges;
                  this.content = content;
                  this.paint = paint;
                  this.minOutlineHeight = minOutlineHeight;
                  this.text = text;
                  this.description = description;
          }
  
          private static int calcMargin(int height) {
                  return Math.min(5, (height + 10) / 20);
          }
  
          @Override
          public IRenderedRow render(Graphics2D context, SubdividedQuantityRange xRange, int height) {
                  int margin = calcMargin(height);
                  int innerHeight = height - 2 * margin;
                  context.translate(0, margin);
--- 58,88 ----
          private final Paint paint;
          private final int minOutlineHeight;
          private final IXDataRenderer content;
          private final String text;
          private final String description;
+         private final Object data;
  
          public QuantitySpanRenderer(IQuantitySeries<?> ranges, IXDataRenderer content, Paint paint, int minOutlineHeight,
!                         String text, String description, Object data) {
                  this.ranges = ranges;
                  this.content = content;
                  this.paint = paint;
                  this.minOutlineHeight = minOutlineHeight;
                  this.text = text;
                  this.description = description;
+                 this.data = data;
          }
  
          private static int calcMargin(int height) {
                  return Math.min(5, (height + 10) / 20);
          }
  
+         public Object getData() {
+                 return data;
+         }
+ 
          @Override
          public IRenderedRow render(Graphics2D context, SubdividedQuantityRange xRange, int height) {
                  int margin = calcMargin(height);
                  int innerHeight = height - 2 * margin;
                  context.translate(0, margin);
*** 89,122 ****
                  if (innerHeight >= minOutlineHeight) {
                          context.setPaint(Color.BLACK);
                          AWTChartToolkit.drawRanges(context, quantities, innerHeight, false);
                  }
                  context.translate(0, -margin);
!                 return new QuantitySpanRendering(margin, quantities, renderedContent, paint, text, description);
          }
  
          private static class QuantitySpanRendering extends RenderedRowBase {
  
                  private final XYQuantities<?> points;
                  private final IRenderedRow content;
                  private final Paint paint;
                  private final int margin;
!                 private String description;
  
                  public QuantitySpanRendering(int margin, XYQuantities<?> points, IRenderedRow content, Paint paint, String text,
!                                 String description) {
                          super(Arrays.asList(new RenderedRowBase(margin), content, new RenderedRowBase(margin)),
                                          content.getHeight() + 2 * margin, text, description, null);
                          this.margin = margin;
                          this.points = points;
                          this.content = content;
                          this.paint = paint;
                          this.description = description;
                  }
  
                  @Override
                  public void infoAt(IChartInfoVisitor visitor, int x, int y, Point offset) {
                          offset = new Point(offset.x, offset.y + margin);
                          content.infoAt(visitor, x, y, offset);
  
                          // FIXME: Only output this if near the boundaries? At least handle infinite lengths.
                          if (points != null) {
--- 95,131 ----
                  if (innerHeight >= minOutlineHeight) {
                          context.setPaint(Color.BLACK);
                          AWTChartToolkit.drawRanges(context, quantities, innerHeight, false);
                  }
                  context.translate(0, -margin);
!                 return new QuantitySpanRendering(margin, quantities, renderedContent, paint, text, description, data);
          }
  
          private static class QuantitySpanRendering extends RenderedRowBase {
  
                  private final XYQuantities<?> points;
                  private final IRenderedRow content;
                  private final Paint paint;
                  private final int margin;
!                 private final String description;
!                 private final Object data;
  
                  public QuantitySpanRendering(int margin, XYQuantities<?> points, IRenderedRow content, Paint paint, String text,
!                                 String description, Object data) {
                          super(Arrays.asList(new RenderedRowBase(margin), content, new RenderedRowBase(margin)),
                                          content.getHeight() + 2 * margin, text, description, null);
                          this.margin = margin;
                          this.points = points;
                          this.content = content;
                          this.paint = paint;
                          this.description = description;
+                         this.data = data;
                  }
  
                  @Override
                  public void infoAt(IChartInfoVisitor visitor, int x, int y, Point offset) {
+                         visitor.hover(data);
                          offset = new Point(offset.x, offset.y + margin);
                          content.infoAt(visitor, x, y, offset);
  
                          // FIXME: Only output this if near the boundaries? At least handle infinite lengths.
                          if (points != null) {