Examples of org.jfree.chart.renderer.category.CategoryItemRenderer

Package org.jfree.chart.renderer.category

Examples of org.jfree.chart.renderer.category.CategoryItemRenderer

org.jfree.chart.renderer.category.CategoryItemRenderer
A plug-in object that is used by the {@link CategoryPlot} class to displayindividual data items from a {@link CategoryDataset}.
This interface defines the methods that must be provided by all renderers. If you are implementing a custom renderer, you should consider extending the {@link AbstractCategoryItemRenderer} class.
Most renderer attributes are defined using a "three layer" approach. When looking up an attribute (for example, the outline paint) the renderer first checks to see if there is a setting (in layer 0) that applies to ALL items that the renderer draws. If there is, that setting is used, but if it is null the renderer looks up the next layer, which contains "per series" settings for the attribute (many attributes are defined on a per series basis, so this is the layer that is most commonly used). If the layer 1 setting is null, the renderer will look up the final layer, which provides a default or "base" setting. Some attributes allow the base setting to be null, while other attributes enforce non-null values.

          PlotDefinition subPlotDef = (PlotDefinition) plotDefinitions.get(plotidx);
          check(subPlotDef.getDataset(), CategoryDataset.class, chartType);
          plot2.setDataset(plotidx, (CategoryDataset)subPlotDef.getDataset());


          int rendererIndex = PlotTypes.getRendererIndex(subPlotDef.getType()); 
          CategoryItemRenderer rend2 = (CategoryItemRenderer) PlotTypes.getRenderer(rendererIndex);
          plot2.setRenderer(plotidx, rend2);
        }
        return new JFreeChart(title, new Font("SansSerif", Font.BOLD, 18), plot2, showLegend);
      default :
        throw new UnsupportedChartTypeException(chartType + " is not supported.");

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    public JFreeChart createChartImpl(String title, String xAxisTitle, String yAxisTitle, final Dataset dataset,
            PlotOrientation plotOrientation, boolean showLegend, boolean showToolTips, boolean showUrls)
    {
        CategoryAxis xAxis = new CategoryAxis(xAxisTitle);
        ValueAxis yAxis = new NumberAxis(yAxisTitle);
        CategoryItemRenderer renderer = new StatisticalBarRenderer();


        CategoryPlot plot = new CategoryPlot((StatisticalCategoryDataset) dataset, xAxis, yAxis, renderer);


        JFreeChart chart = new JFreeChart(title, new Font("Arial", Font.PLAIN, 10), plot, true);

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        }


        // process all renderers
        int rendererCount = plot.getRendererCount();
        for (int i = 0; i < rendererCount; i++) {
            CategoryItemRenderer r = plot.getRenderer(i);
            if (r != null) {
                applyToCategoryItemRenderer(r);
            }
        }

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     * Check that setting a tool tip generator for a series does override the
     * default generator.
     */
    public void testSetSeriesToolTipGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryToolTipGenerator tt
                = new StandardCategoryToolTipGenerator();
        renderer.setSeriesToolTipGenerator(0, tt);
        CategoryToolTipGenerator tt2 = renderer.getToolTipGenerator(0, 0);
        assertTrue(tt2 == tt);
    }

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     * Check that setting a URL generator for a series does override the
     * default generator.
     */
    public void testSetSeriesURLGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryURLGenerator url1
                = new StandardCategoryURLGenerator();
        renderer.setSeriesItemURLGenerator(0, url1);
        CategoryURLGenerator url2 = renderer.getItemURLGenerator(0, 0);
        assertTrue(url2 == url1);
    }

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     * Check that setting a tool tip generator for a series does override the
     * default generator.
     */
    public void testSetSeriesToolTipGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryToolTipGenerator tt
                = new StandardCategoryToolTipGenerator();
        renderer.setSeriesToolTipGenerator(0, tt);
        CategoryToolTipGenerator tt2 = renderer.getToolTipGenerator(0, 0);
        assertTrue(tt2 == tt);
    }

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     * Check that setting a URL generator for a series does override the
     * default generator.
     */
    public void testSetSeriesURLGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryURLGenerator url1
                = new StandardCategoryURLGenerator();
        renderer.setSeriesItemURLGenerator(0, url1);
        CategoryURLGenerator url2 = renderer.getItemURLGenerator(0, 0);
        assertTrue(url2 == url1);
    }

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     * Check that setting a tool tip generator for a series does override the
     * default generator.
     */
    public void testSetSeriesToolTipGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryToolTipGenerator tt
                = new StandardCategoryToolTipGenerator();
        renderer.setSeriesToolTipGenerator(0, tt);
        CategoryToolTipGenerator tt2 = renderer.getToolTipGenerator(0, 0);
        assertTrue(tt2 == tt);
    }

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     * Check that setting a URL generator for a series does override the
     * default generator.
     */
    public void testSetSeriesURLGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryURLGenerator url1
                = new StandardCategoryURLGenerator();
        renderer.setSeriesItemURLGenerator(0, url1);
        CategoryURLGenerator url2 = renderer.getItemURLGenerator(0, 0);
        assertTrue(url2 == url1);
    }

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     * Check that setting a tool tip generator for a series does override the
     * default generator.
     */
    public void testSetSeriesToolTipGenerator() {
        CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
        CategoryItemRenderer renderer = plot.getRenderer();
        StandardCategoryToolTipGenerator tt
                = new StandardCategoryToolTipGenerator();
        renderer.setSeriesToolTipGenerator(0, tt);
        CategoryToolTipGenerator tt2 = renderer.getToolTipGenerator(0, 0);
        assertTrue(tt2 == tt);
    }

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