Examples of org.jfree.chart.ChartRenderingInfo

org.jfree.chart.ChartRenderingInfo
A structure for storing rendering information from one call to the JFreeChart.draw() method.
An instance of the {@link JFreeChart} class can draw itself within anarbitrary rectangle on any Graphics2D. It is assumed that client code will sometimes render the same chart in more than one view, so the {@link JFreeChart} instance does not retain any information about itsrendered dimensions. This information can be useful sometimes, so you have the option to collect the information at each call to JFreeChart.draw(), by passing an instance of this ChartRenderingInfo class.

   * @throws CewolfException
   */
  private static RenderedImage renderChart(ChartImage cd, Object chart) throws CewolfException {
    try {
      final ByteArrayOutputStream baos = new ByteArrayOutputStream();
      final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
      final String mimeType = cd.getMimeType();
      if (MIME_PNG.equals(mimeType)) {
        handlePNG(baos, (JFreeChart)chart, cd.getWidth(), cd.getHeight(), info);
      } else if (MIME_JPEG.equals(mimeType)) {
          handleJPEG(baos, (JFreeChart)chart, cd.getWidth(), cd.getHeight(), info);

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      // chart in the state we received it.
      if (!haslegend) {
        removeLegend(chart);
      }


      return new RenderedImage(out.toByteArray(), "image/jpeg", new ChartRenderingInfo(new StandardEntityCollection()));
    } catch (IOException ioex) {
      log.error("Renderer.renderLegend: "+ioex.getMessage());
      throw new ChartRenderingException(ioex.getMessage(), ioex);
    }
  }

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      String mapTagContent = "<" + MAP_TAGNAME; 
      mapTagContent += " " + NAME_ATTRIBUTE + "=\"" + chartId + "\"";
      mapTagContent += " " + ID_ATTRIBUTE + "=\"" + chartId + "\"";
      mapTagContent += " >";
      out.write(mapTagContent);
      ChartRenderingInfo info = (ChartRenderingInfo) root.getRenderingInfo();
      Iterator entities = info.getEntityCollection().iterator();
      boolean altAttrbInserted, hasContent;
      StringBuffer sb = new StringBuffer(200);
      while (entities.hasNext()) {
        altAttrbInserted = false;
        hasContent = false;

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        }


        chart.setBackgroundPaint(java.awt.Color.white);


        try {
            final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
            ChartUtilities.saveChartAsPNG(tempTestSummaryFile, chart, 600, 400, info);
        } catch (IOException e) {
            logger.error("Problem saving png chart", e);
        }

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    if (chart == null) return null;    
    
    chart.setBackgroundPaint(Color.WHITE);
    
    ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());


    BufferedImage bufferedImage =  chart.createBufferedImage(reportChart.getWidth(), reportChart.getHeight(),info);
    byte[] image = null;
    
    try

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            if (this.regionEnd != null) {
                endpoint = this.chartPanel.translateScreenToJava2D(this.regionEnd);
            }


            ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();
            Rectangle2D dataArea = info.getPlotInfo().getDataArea();
            ValueAxis domainAxis = this.renderer.getPlot().getDomainAxis();
            RectangleEdge edge = this.renderer.getPlot().getDomainAxisEdge();


            // define the limits for the region to be shaded

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        } else if (this.currentMouseMode == MOUSEMODE.PICKPEAK) {


            this.renderer.getPlot().setDomainCrosshairVisible(false);
            this.renderer.getPlot().clearDomainMarkers();
            Point2D point = this.chartPanel.translateScreenToJava2D(e.getPoint());
            ChartRenderingInfo info = this.chartPanel.getChartRenderingInfo();
            Rectangle2D dataArea = info.getPlotInfo().getDataArea();
            ValueAxis domainAxis = this.renderer.getPlot().getDomainAxis();
            RectangleEdge edge = this.renderer.getPlot().getDomainAxisEdge();


            // define the point for the peaks
            double peakPoint = domainAxis.java2DToValue(point.getX(), dataArea, edge);

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    protected static String writeImageMap(JFreeChart chart, OutputElement outputElement, HttpSession session, PrintWriter pw) {
        String filename;
        try {
            //  Write the chart image to the temporary directory
            ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
            filename = ServletUtilities.saveChartAsPNG(chart,
                    outputElement.getChart().getWidth().intValue(),
                    outputElement.getChart().getHeight().intValue(),
                    info, session);

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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        ChartRenderingInfo i1 = new ChartRenderingInfo();
        ChartRenderingInfo i2 = new ChartRenderingInfo();
        assertTrue(i1.equals(i2));


        i1.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        assertFalse(i1.equals(i2));
        i2.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        assertTrue(i1.equals(i2));


        i1.getPlotInfo().setDataArea(new Rectangle(1, 2, 3, 4));
        assertFalse(i1.equals(i2));
        i2.getPlotInfo().setDataArea(new Rectangle(1, 2, 3, 4));
        assertTrue(i1.equals(i2));


        StandardEntityCollection e1 = new StandardEntityCollection();
        e1.add(new ChartEntity(new Rectangle(1, 2, 3, 4)));
        i1.setEntityCollection(e1);
        assertFalse(i1.equals(i2));
        StandardEntityCollection e2 = new StandardEntityCollection();
        e2.add(new ChartEntity(new Rectangle(1, 2, 3, 4)));
        i2.setEntityCollection(e2);
    }

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        ChartRenderingInfo i1 = new ChartRenderingInfo();
        ChartRenderingInfo i2 = null;
        try {
            i2 = (ChartRenderingInfo) i1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(i1 != i2);
        assertTrue(i1.getClass() == i2.getClass());
        assertTrue(i1.equals(i2));


        // check independence
        i1.getChartArea().setRect(4.0, 3.0, 2.0, 1.0);
        assertFalse(i1.equals(i2));
        i2.getChartArea().setRect(4.0, 3.0, 2.0, 1.0);
        assertTrue(i1.equals(i2));


        i1.getEntityCollection().add(new ChartEntity(new Rectangle(1, 2, 2,
                1)));
        assertFalse(i1.equals(i2));
        i2.getEntityCollection().add(new ChartEntity(new Rectangle(1, 2, 2,
                1)));
        assertTrue(i1.equals(i2));


    }

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