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.

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {


        ChartRenderingInfo i1 = new ChartRenderingInfo();
        i1.setChartArea(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        ChartRenderingInfo i2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);
            out.close();

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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization2() {


        ChartRenderingInfo i1 = new ChartRenderingInfo();
        i1.getPlotInfo().setDataArea(new Rectangle2D.Double(1.0, 2.0, 3.0,
                4.0));
        ChartRenderingInfo i2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);
            out.close();


            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            i2 = (ChartRenderingInfo) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(i1, i2);
        assertEquals(i2, i2.getPlotInfo().getOwner());


    }

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     * @return The entity collection (possibly <code>null</code>).
     */
    public EntityCollection getEntityCollection() {
        EntityCollection result = null;
        if (this.info != null) {
            ChartRenderingInfo owner = this.info.getOwner();
            if (owner != null) {
                result = owner.getEntityCollection();
            }
        }
        return result;
    }

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        ValueAxis yAxis = plot.getRangeAxis();
        yAxis.setFixedDimension(100.0);
        BufferedImage image = new BufferedImage(500, 300, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        ChartRenderingInfo info = new ChartRenderingInfo();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 500, 300), info);
        g2.dispose();
        Rectangle2D rect = info.getPlotInfo().getDataArea();
        double x = rect.getMinX();
        assertEquals(100.0, x, 1.0);
    }

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        NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
        yAxis.setRange(0.0, 5.0);
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        ChartRenderingInfo info = new ChartRenderingInfo();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
        g2.dispose();
        EntityCollection ec = info.getEntityCollection();
        assertFalse(TestUtilities.containsInstanceOf(ec.getEntities(),
                XYItemEntity.class));
    }

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        NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
        yAxis.setRange(0.0, 5.0);
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        ChartRenderingInfo info = new ChartRenderingInfo();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
        g2.dispose();
        EntityCollection ec = info.getEntityCollection();
        assertFalse(TestUtilities.containsInstanceOf(ec.getEntities(),
                XYItemEntity.class));
    }

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      // create temporary file names
      String[] tempFileInfo = createTempFile();
      String fileName = tempFileInfo[AbstractChartComponent.FILENAME_INDEX];
      String filePathWithoutExtension = tempFileInfo[AbstractChartComponent.FILENAME_WITHOUT_EXTENSION_INDEX];


      ChartRenderingInfo info = new ChartRenderingInfo( new StandardEntityCollection() );
      JFreeChartEngine.saveChart( chartDataDefinition, chartTitle,
          "", filePathWithoutExtension, width, height, JFreeChartEngine.OUTPUT_PNG, printWriter, info, this ); //$NON-NLS-1$
      applyOuterURLTemplateParam();
      populateInfo( info );
      Element chartElement = root.addElement( "chart" ); //$NON-NLS-1$

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      // create temporary file names
      String[] tempFileInfo = createTempFile();
      String fileName = tempFileInfo[AbstractChartComponent.FILENAME_INDEX];
      String filePathWithoutExtension = tempFileInfo[AbstractChartComponent.FILENAME_WITHOUT_EXTENSION_INDEX];


      ChartRenderingInfo info = new ChartRenderingInfo( new StandardEntityCollection() );
      JFreeChartEngine.saveChart( chartDataDefinition, chartTitle,
          "", filePathWithoutExtension, width, height, JFreeChartEngine.OUTPUT_PNG, printWriter, info, this ); //$NON-NLS-1$
      applyOuterURLTemplateParam();
      populateInfo( info );
      Element chartElement = root.addElement( "chart" ); //$NON-NLS-1$

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        String chartId =
            fileResults[ChartComponent.FILE_NAME].getName().substring( 0,
                fileResults[ChartComponent.FILE_NAME].getName().indexOf( '.' ) );
        String filePathWithoutExtension = ChartComponent.TEMP_DIRECTORY + chartId;
        PrintWriter printWriter = new PrintWriter( new StringWriter() );
        ChartRenderingInfo info = new ChartRenderingInfo( new StandardEntityCollection() );


        JFreeChartEngine.saveChart( dataDefinition, title,
            "", filePathWithoutExtension, width, height, outputType, printWriter, info, this ); //$NON-NLS-1$


        // Creating the image map

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    /**
     * Test the equals() method.
     */
    public void testEquals() {
        PlotRenderingInfo p1 = new PlotRenderingInfo(new ChartRenderingInfo());
        PlotRenderingInfo p2 = new PlotRenderingInfo(new ChartRenderingInfo());
        assertTrue(p1.equals(p2));
        assertTrue(p2.equals(p1));


        p1.setPlotArea(new Rectangle(2, 3, 4, 5));
        assertFalse(p1.equals(p2));

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