xyitemrenderer.java

jfreechart-1.0.12.zip 可以用来作图

     *
     * @return The item label position (never <code>null</code>).
     */
    public ItemLabelPosition getPositiveItemLabelPosition(int row, int column);

    /**
     * Returns the item label position for all positive values in a series.
     *
     * @param series  the series index (zero-based).
     *
     * @return The item label position (never <code>null</code>).
     */
    public ItemLabelPosition getSeriesPositiveItemLabelPosition(int series);

    /**
     * Sets the item label position for all positive values in a series and
     * sends a {@link RendererChangeEvent} to all registered listeners.
     *
     * @param series  the series index (zero-based).
     * @param position  the position (<code>null</code> permitted).
     */
    public void setSeriesPositiveItemLabelPosition(int series,
                                                   ItemLabelPosition position);

    /**
     * Sets the item label position for all positive values in a series and (if
     * requested) sends a {@link RendererChangeEvent} to all registered
     * listeners.
     *
     * @param series  the series index (zero-based).
     * @param position  the position (<code>null</code> permitted).
     * @param notify  notify registered listeners?
     */
    public void setSeriesPositiveItemLabelPosition(int series,
                                                   ItemLabelPosition position,
                                                   boolean notify);

    /**
     * Returns the base positive item label position.
     *
     * @return The position (never <code>null</code>).
     */
    public ItemLabelPosition getBasePositiveItemLabelPosition();

    /**
     * Sets the base positive item label position.
     *
     * @param position  the position (<code>null</code> not permitted).
     */
    public void setBasePositiveItemLabelPosition(ItemLabelPosition position);

    /**
     * Sets the base positive item label position and, if requested, sends a
     * {@link RendererChangeEvent} to all registered listeners.
     *
     * @param position  the position (<code>null</code> not permitted).
     * @param notify  notify registered listeners?
     */
    public void setBasePositiveItemLabelPosition(ItemLabelPosition position,
                                                 boolean notify);


    // NEGATIVE ITEM LABEL POSITION...

    /**
     * Returns the item label position for negative values.  This method can be
     * overridden to provide customisation of the item label position for
     * individual data items.
     *
     * @param row  the row index (zero-based).
     * @param column  the column (zero-based).
     *
     * @return The item label position (never <code>null</code>).
     */
    public ItemLabelPosition getNegativeItemLabelPosition(int row, int column);

    /**
     * Returns the item label position for all negative values in a series.
     *
     * @param series  the series index (zero-based).
     *
     * @return The item label position (never <code>null</code>).
     */
    public ItemLabelPosition getSeriesNegativeItemLabelPosition(int series);

    /**
     * Sets the item label position for negative values in a series and sends a
     * {@link RendererChangeEvent} to all registered listeners.
     *
     * @param series  the series index (zero-based).
     * @param position  the position (<code>null</code> permitted).
     */
    public void setSeriesNegativeItemLabelPosition(int series,
                                                   ItemLabelPosition position);

    /**
     * Sets the item label position for negative values in a series and (if
     * requested) sends a {@link RendererChangeEvent} to all registered
     * listeners.
     *
     * @param series  the series index (zero-based).
     * @param position  the position (<code>null</code> permitted).
     * @param notify  notify registered listeners?
     */
    public void setSeriesNegativeItemLabelPosition(int series,
                                                   ItemLabelPosition position,
                                                   boolean notify);

    /**
     * Returns the base item label position for negative values.
     *
     * @return The position (never <code>null</code>).
     */
    public ItemLabelPosition getBaseNegativeItemLabelPosition();

    /**
     * Sets the base item label position for negative values and sends a
     * {@link RendererChangeEvent} to all registered listeners.
     *
     * @param position  the position (<code>null</code> not permitted).
     */
    public void setBaseNegativeItemLabelPosition(ItemLabelPosition position);

    /**
     * Sets the base negative item label position and, if requested, sends a
     * {@link RendererChangeEvent} to all registered listeners.
     *
     * @param position  the position (<code>null</code> not permitted).
     * @param notify  notify registered listeners?
     */
    public void setBaseNegativeItemLabelPosition(ItemLabelPosition position,
                                                 boolean notify);


    // CREATE ENTITIES
    // FIXME:  these methods should be defined

//    public boolean getItemCreateEntity(int series, int item);
//
//    public Boolean getSeriesCreateEntities(int series);
//
//    public void setSeriesCreateEntities(int series, Boolean create);
//
//    public void setSeriesCreateEntities(int series, Boolean create,
//            boolean notify);
//
//    public boolean getBaseCreateEntities();
//
//    public void setBaseCreateEntities(boolean create);
//
//    public void setBaseCreateEntities(boolean create, boolean notify);

    //// ANNOTATIONS //////////////////////////////////////////////////////////

    /**
     * Adds an annotation and sends a {@link RendererChangeEvent} to all
     * registered listeners.  The annotation is added to the foreground
     * layer.
     *
     * @param annotation  the annotation (<code>null</code> not permitted).
     */
    public void addAnnotation(XYAnnotation annotation);

    /**
     * Adds an annotation to the specified layer.
     *
     * @param annotation  the annotation (<code>null</code> not permitted).
     * @param layer  the layer (<code>null</code> not permitted).
     */
    public void addAnnotation(XYAnnotation annotation, Layer layer);

    /**
     * Removes the specified annotation and sends a {@link RendererChangeEvent}
     * to all registered listeners.
     *
     * @param annotation  the annotation to remove (<code>null</code> not
     *                    permitted).
     *
     * @return A boolean to indicate whether or not the annotation was
     *         successfully removed.
     */
    public boolean removeAnnotation(XYAnnotation annotation);

    /**
     * Removes all annotations and sends a {@link RendererChangeEvent}
     * to all registered listeners.
     */
    public void removeAnnotations();

    /**
     * Draws all the annotations for the specified layer.
     *
     * @param g2  the graphics device.
     * @param dataArea  the data area.
     * @param domainAxis  the domain axis.
     * @param rangeAxis  the range axis.
     * @param layer  the layer.
     * @param info  the plot rendering info.
     */
    public void drawAnnotations(Graphics2D g2,
                                Rectangle2D dataArea,
                                ValueAxis domainAxis,
                                ValueAxis rangeAxis,
                                Layer layer,
                                PlotRenderingInfo info);

    //// DRAWING //////////////////////////////////////////////////////////////

    /**
     * Initialises the renderer then returns the number of 'passes' through the
     * data that the renderer will require (usually just one).  This method
     * will be called before the first item is rendered, giving the renderer
     * an opportunity to initialise any state information it wants to maintain.
     * The renderer can do nothing if it chooses.
     *
     * @param g2  the graphics device.
     * @param dataArea  the area inside the axes.
     * @param plot  the plot.
     * @param dataset  the dataset.
     * @param info  an optional info collection object to return data back to
     *              the caller.
     *
     * @return The number of passes the renderer requires.
     */
    public XYItemRendererState initialise(Graphics2D g2,
                                          Rectangle2D dataArea,
                                          XYPlot plot,
                                          XYDataset dataset,
                                          PlotRenderingInfo info);

    /**
     * Called for each item to be plotted.
     * <p>
     * The {@link XYPlot} can make multiple passes through the dataset,
     * depending on the value returned by the renderer's initialise() method.
     *
     * @param g2  the graphics device.
     * @param state  the renderer state.
     * @param dataArea  the area within which the data is being rendered.
     * @param info  collects drawing info.
     * @param plot  the plot (can be used to obtain standard color
     *              information etc).
     * @param domainAxis  the domain axis.
     * @param rangeAxis  the range axis.
     * @param dataset  the dataset.
     * @param series  the series index (zero-based).
     * @param item  the item index (zero-based).
     * @param crosshairState  crosshair information for the plot
     *                        (<code>null</code> permitted).
     * @param pass  the pass index.
     */
    public void drawItem(Graphics2D g2,
                         XYItemRendererState state,
                         Rectangle2D dataArea,
                         PlotRenderingInfo info,
                         XYPlot plot,
                         ValueAxis domainAxis,
                         ValueAxis rangeAxis,
                         XYDataset dataset,
                         int series,
                         int item,
                         CrosshairState crosshairState,
                         int pass);

    /**
     * Fills a band between two values on the axis.  This can be used to color
     * bands between the grid lines.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the domain axis.
     * @param dataArea  the data area.
     * @param start  the start value.
     * @param end  the end value.
     */
    public void fillDomainGridBand(Graphics2D g2,
                                   XYPlot plot,
                                   ValueAxis axis,
                                   Rectangle2D dataArea,
                                   double start, double end);

    /**
     * Fills a band between two values on the range axis.  This can be used to
     * color bands between the grid lines.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the range axis.
     * @param dataArea  the data area.
     * @param start  the start value.
     * @param end  the end value.
     */
    public void fillRangeGridBand(Graphics2D g2,
                                  XYPlot plot,
                                  ValueAxis axis,
                                  Rectangle2D dataArea,
                                  double start, double end);

    /**
     * Draws a grid line against the domain axis.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param dataArea  the area for plotting data (not yet adjusted for any
     *                  3D effect).
     * @param value  the value.
     */
    public void drawDomainGridLine(Graphics2D g2,
                                   XYPlot plot,
                                   ValueAxis axis,
                                   Rectangle2D dataArea,
                                   double value);

    /**
     * Draws a line perpendicular to the range axis.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param dataArea  the area for plotting data.
     * @param value  the data value.
     * @param paint  the paint (<code>null</code> not permitted).
     * @param stroke  the stroke (<code>null</code> not permitted).
     */
    public void drawRangeLine(Graphics2D g2, XYPlot plot, ValueAxis axis,
            Rectangle2D dataArea, double value, Paint paint, Stroke stroke);

    /**
     * Draws the specified <code>marker</code> against the domain axis.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param marker  the marker.
     * @param dataArea  the axis data area.
     */
    public void drawDomainMarker(Graphics2D g2, XYPlot plot, ValueAxis axis,
            Marker marker, Rectangle2D dataArea);

    /**
     * Draws a horizontal line across the chart to represent a 'range marker'.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param marker  the marker line.
     * @param dataArea  the axis data area.
     */
    public void drawRangeMarker(Graphics2D g2, XYPlot plot, ValueAxis axis,
            Marker marker, Rectangle2D dataArea);

    // DEPRECATED METHODS