abstractcategoryitemrenderer.java

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            if (this.baseItemLabelGenerator != null) {
                result = result && this.baseItemLabelGenerator.equals(r.getBaseItemLabelGenerator());
            }
            else {
                result = result && (r.getBaseItemLabelGenerator() == null);
            }
            if (this.itemURLGenerator != null) {
                result = result && this.itemURLGenerator.equals(r.itemURLGenerator);
            }
            else {
                result = result && (r.itemURLGenerator == null);
            }
        }

        return result;

    }

    /**
     * Returns the drawing supplier from the plot.
     * 
     * @return The drawing supplier (possibly <code>null</code>).
     */
    public DrawingSupplier getDrawingSupplier() {
        DrawingSupplier result = null;
        CategoryPlot cp = getPlot();
        if (cp != null) {
            result = cp.getDrawingSupplier();
        }
        return result;
    }

    /**
     * Draws an item label.
     * 
     * @param g2  the graphics device.
     * @param orientation  the orientation.
     * @param dataset  the dataset.
     * @param row  the row.
     * @param column  the column.
     * @param x  the x value.
     * @param y  the y value.
     * @param flipAnchors  flip anchors for negative values?
     */
    protected void drawItemLabel(Graphics2D g2, PlotOrientation orientation,
                                 CategoryDataset dataset, int row, int column,
                                 double x, double y, boolean flipAnchors) {
        CategoryItemLabelGenerator generator = getItemLabelGenerator(row, column);
        if (generator != null) {
            Font labelFont = getItemLabelFont(row, column);
            g2.setFont(labelFont);
            Paint paint = getItemLabelPaint(row, column);
            g2.setPaint(paint);
            String label = generator.generateItemLabel(dataset, row, column);

            // get the label anchor..
            ItemLabelAnchor labelAnchor = getItemLabelAnchor(row, column);
            TextAnchor textAnchor = getItemLabelTextAnchor(row, column);
            TextAnchor rotationAnchor = getItemLabelRotationAnchor(row, column);

            if (flipAnchors) {
                labelAnchor = ItemLabelAnchor.getVerticalOpposite(labelAnchor);
                textAnchor = TextAnchor.getVerticalOpposite(textAnchor);
                rotationAnchor = TextAnchor.getVerticalOpposite(rotationAnchor);
            }
            double angle = getItemLabelAngle(row, column).doubleValue();

            // work out the label anchor point...
            Point2D anchorPoint = calculateLabelAnchorPoint(labelAnchor, x, y, orientation);
            RefineryUtilities.drawRotatedString(label, g2,
                                               (float) anchorPoint.getX(),
                                               (float) anchorPoint.getY(),
                                               textAnchor, rotationAnchor, angle);
        }

    }

    /**
     * Calculates the item label anchor point.
     *
     * @param anchor  the anchor.
     * @param x  the x coordinate.
     * @param y  the y coordinate.
     * @param orientation  the plot orientation.
     *
     * @return The anchor point.
     */
    private Point2D calculateLabelAnchorPoint(ItemLabelAnchor anchor,
                                              double x, double y, PlotOrientation orientation) {

        Point2D result = null;

        if (orientation == PlotOrientation.HORIZONTAL) {
            result = getHorizontalLabelAnchorPoint(anchor, y, x);
        }
        else if (orientation == PlotOrientation.VERTICAL) {
            result = getVerticalLabelAnchorPoint(anchor, x, y);
        }

        return result;

    }

    /**
     * Returns the horizontal label anchor point.
     * 
     * @param anchor  the anchor.
     * @param x  the x value.
     * @param y  the y value.
     * 
     * @return The anchor point.
     */
    private Point2D getHorizontalLabelAnchorPoint(ItemLabelAnchor anchor, double x, double y) {

        Point2D result = null;

        if (anchor == ItemLabelAnchor.CENTER) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE1) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE2) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE3) {
            result = new Point2D.Double(x, y + this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.INSIDE4) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE5) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE6) {
            result = new Point2D.Double(x - this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE7) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE8) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE9) {
            result = new Point2D.Double(x, y - this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.INSIDE10) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE11) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE12) {
            result = new Point2D.Double(x + this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE1) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE2) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE3) {
            result = new Point2D.Double(x, y + 2.0 * this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE4) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE5) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE6) {
            result = new Point2D.Double(x- 2.0 * this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE7) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE8) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE9) {
            result = new Point2D.Double(x, y - 2.0 * this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE10) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE11) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE12) {
            result = new Point2D.Double(x + 2.0 * this.itemLabelAnchorOffset, y);
        }

        return result;

    }

    /**
     * Gets the label anchor point.
     * 
     * @param anchor  the label anchor.
     * @param x  the data x coordinate.
     * @param y  the data y coordinate.
     * 
     * @return The anchor point.
     */
    private Point2D getVerticalLabelAnchorPoint(ItemLabelAnchor anchor, double x, double y) {

        Point2D result = null;

        if (anchor == ItemLabelAnchor.CENTER) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE1) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE2) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE3) {
            result = new Point2D.Double(x + this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE4) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE5) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE6) {
            result = new Point2D.Double(x, y + this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.INSIDE7) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE8) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE9) {
            result = new Point2D.Double(x - this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE10) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE11) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.INSIDE12) {
            result = new Point2D.Double(x, y - this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE1) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE2) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE3) {
            result = new Point2D.Double(x + 2.0 * this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE4) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE5) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE6) {
            result = new Point2D.Double(x, y + 2.0 * this.itemLabelAnchorOffset);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE7) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE8) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE9) {
            result = new Point2D.Double(x - 2.0 * this.itemLabelAnchorOffset, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE10) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE11) {
            result = new Point2D.Double(x, y);
        }
        else if (anchor == ItemLabelAnchor.OUTSIDE12) {
            result = new Point2D.Double(x, y - 2.0 * this.itemLabelAnchorOffset);
       }

        return result;

    }

}