abstractcategoryitemrenderer.java

JFreeChartweb图表

            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;

    }
    
    /**
     * Returns an independent copy of the renderer.
     * <p>
     * The <code>plot</code> reference is shallow copied.
     * 
     * @return A clone.
     * 
     * @throws CloneNotSupportedException  should not happen.
     */
    public Object clone() throws CloneNotSupportedException {
        AbstractCategoryItemRenderer clone = (AbstractCategoryItemRenderer) super.clone();

        if (this.itemLabelGenerator != null) {
            clone.itemLabelGenerator = (CategoryItemLabelGenerator) this.itemLabelGenerator.clone();
        }

        if (this.itemLabelGeneratorList != null) {
            clone.itemLabelGeneratorList = (ObjectList) this.itemLabelGeneratorList.clone();
        }
        
        if (this.baseItemLabelGenerator != null) {
            clone.baseItemLabelGenerator 
                = (CategoryItemLabelGenerator) this.baseItemLabelGenerator.clone();
        }
        
        if (this.itemURLGenerator != null) {
            clone.itemURLGenerator = (CategoryURLGenerator) this.itemURLGenerator.clone();
        }

        if (this.itemURLGeneratorList != null) {
            clone.itemURLGeneratorList = (ObjectList) this.itemURLGeneratorList.clone();
        }

        if (this.baseItemURLGenerator != null) {
            clone.baseItemURLGenerator 
                = (CategoryURLGenerator) this.baseItemURLGenerator.clone();
        }
        

        return clone;
    }

    /**
     * Returns a domain axis for a plot.
     * 
     * @param plot  the plot.
     * @param index  the axis index (<code>null</code> for the primary axis).
     * 
     * @return A domain axis.
     */
    protected CategoryAxis getDomainAxis(CategoryPlot plot, Integer index) {
        CategoryAxis result = null;
        if (index == null) {
            result = plot.getDomainAxis();
        }
        else {
            result = plot.getSecondaryDomainAxis(index.intValue());
            if (result == null) {
                result = plot.getDomainAxis();
            }
        }
        return result;
    }

    /**
     * Returns a range axis for a plot.
     * 
     * @param plot  the plot.
     * @param index  the axis index (<code>null</code> for the primary axis).
     * 
     * @return A range axis.
     */
    protected ValueAxis getRangeAxis(CategoryPlot plot, Integer index) {
        ValueAxis result = null;
        if (index == null) {
            result = plot.getRangeAxis();
        }
        else {
            result = plot.getSecondaryRangeAxis(index.intValue());
            if (result == null) {
                result = plot.getRangeAxis();
            }
        }
        return result;
    }

    /**
     * Returns a dataset for a plot.
     * 
     * @param plot  the plot.
     * @param index  the dataset index (<code>null</code> for the primary dataset).
     * 
     * @return A dataset.
     */
    protected CategoryDataset getDataset(CategoryPlot plot, Integer index) {
        CategoryDataset result = null;
        if (index == null) {
            result = plot.getDataset();
        }
        else {
            result = plot.getSecondaryDataset(index.intValue());
        }
        return result;    
    }
    
}