Class StackedBarRenderer

    • Field Detail

      • serialVersionUID

        static final long serialVersionUID
        For serialization.
        See Also:
        Constant Field Values
      • renderAsPercentages

        private boolean renderAsPercentages
        A flag that controls whether the bars display values or percentages.
    • Constructor Detail

      • StackedBarRenderer

        public StackedBarRenderer()
        Creates a new renderer. By default, the renderer has no tool tip generator and no URL generator. These defaults have been chosen to minimise the processing required to generate a default chart. If you require tool tips or URLs, then you can easily add the required generators.
      • StackedBarRenderer

        public StackedBarRenderer​(boolean renderAsPercentages)
        Creates a new renderer.
        Parameters:
        renderAsPercentages - a flag that controls whether the data values are rendered as percentages.
    • Method Detail

      • getRenderAsPercentages

        public boolean getRenderAsPercentages()
        Returns true if the renderer displays each item value as a percentage (so that the stacked bars add to 100%), and false otherwise.
        Returns:
        A boolean.
        See Also:
        setRenderAsPercentages(boolean)
      • setRenderAsPercentages

        public void setRenderAsPercentages​(boolean asPercentages)
        Sets the flag that controls whether the renderer displays each item value as a percentage (so that the stacked bars add to 100%), and sends a RendererChangeEvent to all registered listeners.
        Parameters:
        asPercentages - the flag.
        See Also:
        getRenderAsPercentages()
      • getPassCount

        public int getPassCount()
        Returns the number of passes (3) required by this renderer. The first pass is used to draw the bar shadows, the second pass is used to draw the bars, and the third pass is used to draw the item labels (if visible).
        Specified by:
        getPassCount in interface CategoryItemRenderer
        Overrides:
        getPassCount in class AbstractCategoryItemRenderer
        Returns:
        The number of passes required by the renderer.
      • calculateBarWidth

        protected void calculateBarWidth​(CategoryPlot plot,
                                         java.awt.geom.Rectangle2D dataArea,
                                         int rendererIndex,
                                         CategoryItemRendererState state)
        Calculates the bar width and stores it in the renderer state.
        Overrides:
        calculateBarWidth in class BarRenderer
        Parameters:
        plot - the plot.
        dataArea - the data area.
        rendererIndex - the renderer index.
        state - the renderer state.
      • drawItem

        public void drawItem​(java.awt.Graphics2D g2,
                             CategoryItemRendererState state,
                             java.awt.geom.Rectangle2D dataArea,
                             CategoryPlot plot,
                             CategoryAxis domainAxis,
                             ValueAxis rangeAxis,
                             CategoryDataset dataset,
                             int row,
                             int column,
                             int pass)
        Draws a stacked bar for a specific item.
        Specified by:
        drawItem in interface CategoryItemRenderer
        Overrides:
        drawItem in class BarRenderer
        Parameters:
        g2 - the graphics device.
        state - the renderer state.
        dataArea - the plot area.
        plot - the plot.
        domainAxis - the domain (category) axis.
        rangeAxis - the range (value) axis.
        dataset - the data.
        row - the row index (zero-based).
        column - the column index (zero-based).
        pass - the pass index.
      • equals

        public boolean equals​(java.lang.Object obj)
        Tests this renderer for equality with an arbitrary object.
        Overrides:
        equals in class BarRenderer
        Parameters:
        obj - the object (null permitted).
        Returns:
        A boolean.