/**
* A utility method for determining the height of a text block.
*
* @param block the text block.
* @param position the label position.
* @param g2 the graphics device.
* @return The height.
*/
protected double calculateTextBlockHeight(
TextBlock block, CategoryLabelPosition position, Graphics2D g2) {
RectangleInsets insets = getTickLabelInsets();
Size2D size = block.calculateDimensions(g2);
Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(), size.getHeight());
Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(), 0.0f, 0.0f);
double h = rotatedBox.getBounds2D().getHeight() + insets.getTop() + insets.getBottom();
return h;
}
/**
* Draws the category labels and returns the updated axis state.
*
* @param g2 the graphics device (<code>null</code> not permitted).
* @param plotArea the plot area (<code>null</code> not permitted).
* @param dataArea the area inside the axes (<code>null</code> not permitted).
* @param edge the axis location (<code>null</code> not permitted).
* @param state the axis state (<code>null</code> not permitted).
* @param plotState collects information about the plot (<code>null</code> permitted).
* @return The updated axis state (never <code>null</code>).
*/
protected AxisState drawCategoryLabels(
Graphics2D g2,
Rectangle2D plotArea,
Rectangle2D dataArea,
RectangleEdge edge,
AxisState state,
PlotRenderingInfo plotState) {
ParamChecks.nullNotPermitted(state, "state");
if (!isTickLabelsVisible()) {
return state;
}
List<CategoryTick> ticks = refreshTicks(g2, state, plotArea, edge);
// state.setTicks(ticks); //FIXME MMC had to remove this as the types don't match
int categoryIndex = 0;
for (CategoryTick tick : ticks) {
g2.setFont(getTickLabelFont(tick.getCategory()));
g2.setPaint(getTickLabelPaint(tick.getCategory()));
CategoryLabelPosition position = this.categoryLabelPositions.getLabelPosition(edge);
double x0 = 0.0;
double x1 = 0.0;
double y0 = 0.0;
double y1 = 0.0;
if (edge == RectangleEdge.TOP) {
x0 = getCategoryStart(categoryIndex, ticks.size(), dataArea, edge);
x1 = getCategoryEnd(categoryIndex, ticks.size(), dataArea, edge);
y1 = state.getCursor() - this.categoryLabelPositionOffset;
y0 = y1 - state.getMax();
} else if (edge == RectangleEdge.BOTTOM) {
x0 = getCategoryStart(categoryIndex, ticks.size(), dataArea, edge);
x1 = getCategoryEnd(categoryIndex, ticks.size(), dataArea, edge);
y0 = state.getCursor() + this.categoryLabelPositionOffset;
y1 = y0 + state.getMax();
} else if (edge == RectangleEdge.LEFT) {
y0 = getCategoryStart(categoryIndex, ticks.size(), dataArea, edge);
y1 = getCategoryEnd(categoryIndex, ticks.size(), dataArea, edge);
x1 = state.getCursor() - this.categoryLabelPositionOffset;
x0 = x1 - state.getMax();
} else if (edge == RectangleEdge.RIGHT) {
y0 = getCategoryStart(categoryIndex, ticks.size(), dataArea, edge);
y1 = getCategoryEnd(categoryIndex, ticks.size(), dataArea, edge);
x0 = state.getCursor() + this.categoryLabelPositionOffset;
x1 = x0 - state.getMax();
}
Rectangle2D area = new Rectangle2D.Double(x0, y0, (x1 - x0), (y1 - y0));
Point2D anchorPoint = RectangleAnchor.coordinates(area, position.getCategoryAnchor());
TextBlock block = tick.getLabel();
block.draw(
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getLabelAnchor(),
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getAngle());
Shape bounds =
block.calculateBounds(
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getLabelAnchor(),
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getAngle());
if (plotState != null && plotState.getOwner() != null) {
EntityCollection entities = plotState.getOwner().getEntityCollection();
if (entities != null) {
String tooltip = getCategoryLabelToolTip(tick.getCategory());
String url = getCategoryLabelURL(tick.getCategory());
entities.add(new CategoryLabelEntity(tick.getCategory(), bounds, tooltip, url));
}
}
categoryIndex++;
}
if (edge.equals(RectangleEdge.TOP)) {
double h = state.getMax() + this.categoryLabelPositionOffset;
state.cursorUp(h);
} else if (edge.equals(RectangleEdge.BOTTOM)) {
double h = state.getMax() + this.categoryLabelPositionOffset;
state.cursorDown(h);
} else if (edge == RectangleEdge.LEFT) {
double w = state.getMax() + this.categoryLabelPositionOffset;
state.cursorLeft(w);
} else if (edge == RectangleEdge.RIGHT) {
double w = state.getMax() + this.categoryLabelPositionOffset;
state.cursorRight(w);
}
return state;
}