Examples with MeterInterval org.jfree.chart.plot.MeterInterval used on opensource projects

Example 1 with MeterInterval

use of org.jfree.chart.plot.MeterInterval in project pentaho-platform by pentaho.

the class JFreeChartEngine method updatePlot.

private static void updatePlot(final Plot plot, final ChartDefinition chartDefinition) {
    plot.setBackgroundPaint(chartDefinition.getPlotBackgroundPaint());
    plot.setBackgroundImage(chartDefinition.getPlotBackgroundImage());
    plot.setNoDataMessage(chartDefinition.getNoDataMessage());
    // create a custom palette if it was defined
    if (chartDefinition.getPaintSequence() != null) {
        DefaultDrawingSupplier drawingSupplier = new DefaultDrawingSupplier(chartDefinition.getPaintSequence(), DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE, DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE, DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE, DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE);
        plot.setDrawingSupplier(drawingSupplier);
    }
    // TODO define outline stroke
    plot.setOutlineStroke(null);
    if (plot instanceof CategoryPlot) {
        CategoryPlot categoryPlot = (CategoryPlot) plot;
        CategoryDatasetChartDefinition categoryDatasetChartDefintion = (CategoryDatasetChartDefinition) chartDefinition;
        categoryPlot.setOrientation(categoryDatasetChartDefintion.getOrientation());
        CategoryAxis domainAxis = categoryPlot.getDomainAxis();
        if (domainAxis != null) {
            domainAxis.setLabel(categoryDatasetChartDefintion.getDomainTitle());
            domainAxis.setLabelFont(categoryDatasetChartDefintion.getDomainTitleFont());
            if (categoryDatasetChartDefintion.getDomainTickFont() != null) {
                domainAxis.setTickLabelFont(categoryDatasetChartDefintion.getDomainTickFont());
            }
            domainAxis.setCategoryLabelPositions(categoryDatasetChartDefintion.getCategoryLabelPositions());
        }
        NumberAxis numberAxis = (NumberAxis) categoryPlot.getRangeAxis();
        if (numberAxis != null) {
            numberAxis.setLabel(categoryDatasetChartDefintion.getRangeTitle());
            numberAxis.setLabelFont(categoryDatasetChartDefintion.getRangeTitleFont());
            if (categoryDatasetChartDefintion.getRangeMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                numberAxis.setLowerBound(categoryDatasetChartDefintion.getRangeMinimum());
            }
            if (categoryDatasetChartDefintion.getRangeMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                numberAxis.setUpperBound(categoryDatasetChartDefintion.getRangeMaximum());
            }
            if (categoryDatasetChartDefintion.getRangeTickFormat() != null) {
                numberAxis.setNumberFormatOverride(categoryDatasetChartDefintion.getRangeTickFormat());
            }
            if (categoryDatasetChartDefintion.getRangeTickFont() != null) {
                numberAxis.setTickLabelFont(categoryDatasetChartDefintion.getRangeTickFont());
            }
            if (categoryDatasetChartDefintion.getRangeTickUnits() != null) {
                numberAxis.setTickUnit(new NumberTickUnit(categoryDatasetChartDefintion.getRangeTickUnits()));
            }
        }
    }
    if (plot instanceof PiePlot) {
        PiePlot pie = (PiePlot) plot;
        PieDatasetChartDefinition pieDefinition = (PieDatasetChartDefinition) chartDefinition;
        pie.setInteriorGap(pieDefinition.getInteriorGap());
        pie.setStartAngle(pieDefinition.getStartAngle());
        pie.setLabelFont(pieDefinition.getLabelFont());
        if (pieDefinition.getLabelPaint() != null) {
            pie.setLabelPaint(pieDefinition.getLabelPaint());
        }
        pie.setLabelBackgroundPaint(pieDefinition.getLabelBackgroundPaint());
        if (pieDefinition.isLegendIncluded()) {
            // $NON-NLS-1$
            StandardPieSectionLabelGenerator labelGen = new StandardPieSectionLabelGenerator("{0}");
            pie.setLegendLabelGenerator(labelGen);
        }
        if (pieDefinition.getExplodedSlices() != null) {
            for (Iterator iter = pieDefinition.getExplodedSlices().iterator(); iter.hasNext(); ) {
                pie.setExplodePercent((Comparable) iter.next(), .30);
            }
        }
        pie.setLabelGap(pieDefinition.getLabelGap());
        if (!pieDefinition.isDisplayLabels()) {
            pie.setLabelGenerator(null);
        } else {
            if (pieDefinition.isLegendIncluded()) {
                // $NON-NLS-1$
                StandardPieSectionLabelGenerator labelGen = new StandardPieSectionLabelGenerator("{1} ({2})");
                pie.setLabelGenerator(labelGen);
            } else {
                // $NON-NLS-1$
                StandardPieSectionLabelGenerator labelGen = new StandardPieSectionLabelGenerator("{0} = {1} ({2})");
                pie.setLabelGenerator(labelGen);
            }
        }
    }
    if (plot instanceof MultiplePiePlot) {
        MultiplePiePlot pies = (MultiplePiePlot) plot;
        CategoryDatasetChartDefinition categoryDatasetChartDefintion = (CategoryDatasetChartDefinition) chartDefinition;
        pies.setDataset(categoryDatasetChartDefintion);
    }
    if (plot instanceof MeterPlot) {
        MeterPlot meter = (MeterPlot) plot;
        DialWidgetDefinition widget = (DialWidgetDefinition) chartDefinition;
        List intervals = widget.getIntervals();
        Iterator intervalIterator = intervals.iterator();
        while (intervalIterator.hasNext()) {
            MeterInterval interval = (MeterInterval) intervalIterator.next();
            meter.addInterval(interval);
        }
        meter.setNeedlePaint(widget.getNeedlePaint());
        meter.setDialShape(widget.getDialShape());
        meter.setDialBackgroundPaint(widget.getPlotBackgroundPaint());
        meter.setRange(new Range(widget.getMinimum(), widget.getMaximum()));
    }
    if (plot instanceof XYPlot) {
        XYPlot xyPlot = (XYPlot) plot;
        if (chartDefinition instanceof XYSeriesCollectionChartDefinition) {
            XYSeriesCollectionChartDefinition xySeriesCollectionChartDefintion = (XYSeriesCollectionChartDefinition) chartDefinition;
            xyPlot.setOrientation(xySeriesCollectionChartDefintion.getOrientation());
            ValueAxis domainAxis = xyPlot.getDomainAxis();
            if (domainAxis != null) {
                domainAxis.setLabel(xySeriesCollectionChartDefintion.getDomainTitle());
                domainAxis.setLabelFont(xySeriesCollectionChartDefintion.getDomainTitleFont());
                domainAxis.setVerticalTickLabels(xySeriesCollectionChartDefintion.isDomainVerticalTickLabels());
                if (xySeriesCollectionChartDefintion.getDomainTickFormat() != null) {
                    ((NumberAxis) domainAxis).setNumberFormatOverride(xySeriesCollectionChartDefintion.getDomainTickFormat());
                }
                if (xySeriesCollectionChartDefintion.getDomainTickFont() != null) {
                    domainAxis.setTickLabelFont(xySeriesCollectionChartDefintion.getDomainTickFont());
                }
                if (xySeriesCollectionChartDefintion.getDomainMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    domainAxis.setLowerBound(xySeriesCollectionChartDefintion.getDomainMinimum());
                }
                if (xySeriesCollectionChartDefintion.getDomainMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    domainAxis.setUpperBound(xySeriesCollectionChartDefintion.getDomainMaximum());
                }
            }
            ValueAxis rangeAxis = xyPlot.getRangeAxis();
            if (rangeAxis != null) {
                rangeAxis.setLabel(xySeriesCollectionChartDefintion.getRangeTitle());
                rangeAxis.setLabelFont(xySeriesCollectionChartDefintion.getRangeTitleFont());
                if (xySeriesCollectionChartDefintion.getRangeMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    rangeAxis.setLowerBound(xySeriesCollectionChartDefintion.getRangeMinimum());
                }
                if (xySeriesCollectionChartDefintion.getRangeMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    rangeAxis.setUpperBound(xySeriesCollectionChartDefintion.getRangeMaximum());
                }
                if (xySeriesCollectionChartDefintion.getRangeMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    rangeAxis.setLowerBound(xySeriesCollectionChartDefintion.getRangeMinimum());
                }
                if (xySeriesCollectionChartDefintion.getRangeMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    rangeAxis.setUpperBound(xySeriesCollectionChartDefintion.getRangeMaximum());
                }
                if (xySeriesCollectionChartDefintion.getRangeTickFormat() != null) {
                    ((NumberAxis) rangeAxis).setNumberFormatOverride(xySeriesCollectionChartDefintion.getRangeTickFormat());
                }
                if (xySeriesCollectionChartDefintion.getRangeTickFont() != null) {
                    rangeAxis.setTickLabelFont(xySeriesCollectionChartDefintion.getRangeTickFont());
                }
            }
        } else if (chartDefinition instanceof TimeSeriesCollectionChartDefinition) {
            TimeSeriesCollectionChartDefinition timeSeriesCollectionChartDefintion = (TimeSeriesCollectionChartDefinition) chartDefinition;
            xyPlot.setOrientation(timeSeriesCollectionChartDefintion.getOrientation());
            ValueAxis domainAxis = xyPlot.getDomainAxis();
            if (domainAxis != null) {
                domainAxis.setLabel(timeSeriesCollectionChartDefintion.getDomainTitle());
                domainAxis.setLabelFont(timeSeriesCollectionChartDefintion.getDomainTitleFont());
                domainAxis.setVerticalTickLabels(timeSeriesCollectionChartDefintion.isDomainVerticalTickLabels());
                if (domainAxis instanceof DateAxis) {
                    DateAxis da = (DateAxis) domainAxis;
                    if (timeSeriesCollectionChartDefintion.getDateMinimum() != null) {
                        da.setMinimumDate(timeSeriesCollectionChartDefintion.getDateMinimum());
                    }
                    if (timeSeriesCollectionChartDefintion.getDateMaximum() != null) {
                        da.setMaximumDate(timeSeriesCollectionChartDefintion.getDateMaximum());
                    }
                }
            }
            ValueAxis rangeAxis = xyPlot.getRangeAxis();
            if (rangeAxis != null) {
                rangeAxis.setLabel(timeSeriesCollectionChartDefintion.getRangeTitle());
                rangeAxis.setLabelFont(timeSeriesCollectionChartDefintion.getRangeTitleFont());
                if (timeSeriesCollectionChartDefintion.getRangeMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    rangeAxis.setLowerBound(timeSeriesCollectionChartDefintion.getRangeMinimum());
                }
                if (timeSeriesCollectionChartDefintion.getRangeMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    rangeAxis.setUpperBound(timeSeriesCollectionChartDefintion.getRangeMaximum());
                }
            }
        } else if (chartDefinition instanceof XYZSeriesCollectionChartDefinition) {
            XYZSeriesCollectionChartDefinition xyzSeriesCollectionChartDefintion = (XYZSeriesCollectionChartDefinition) chartDefinition;
            xyPlot.setOrientation(xyzSeriesCollectionChartDefintion.getOrientation());
            ValueAxis domainAxis = xyPlot.getDomainAxis();
            if (domainAxis != null) {
                domainAxis.setLabel(xyzSeriesCollectionChartDefintion.getDomainTitle());
                domainAxis.setLabelFont(xyzSeriesCollectionChartDefintion.getDomainTitleFont());
                domainAxis.setVerticalTickLabels(xyzSeriesCollectionChartDefintion.isDomainVerticalTickLabels());
                if (xyzSeriesCollectionChartDefintion.getDomainMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    domainAxis.setLowerBound(xyzSeriesCollectionChartDefintion.getDomainMinimum());
                }
                if (xyzSeriesCollectionChartDefintion.getDomainMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    domainAxis.setUpperBound(xyzSeriesCollectionChartDefintion.getDomainMaximum());
                }
                if (xyzSeriesCollectionChartDefintion.getDomainTickFormat() != null) {
                    ((NumberAxis) domainAxis).setNumberFormatOverride(xyzSeriesCollectionChartDefintion.getDomainTickFormat());
                }
                if (xyzSeriesCollectionChartDefintion.getDomainTickFont() != null) {
                    domainAxis.setTickLabelFont(xyzSeriesCollectionChartDefintion.getDomainTickFont());
                }
            }
            ValueAxis rangeAxis = xyPlot.getRangeAxis();
            if (rangeAxis != null) {
                rangeAxis.setLabel(xyzSeriesCollectionChartDefintion.getRangeTitle());
                rangeAxis.setLabelFont(xyzSeriesCollectionChartDefintion.getRangeTitleFont());
                rangeAxis.setLowerBound(xyzSeriesCollectionChartDefintion.getRangeMinimum());
                if (xyzSeriesCollectionChartDefintion.getRangeMinimum() != ValueAxis.DEFAULT_LOWER_BOUND) {
                    rangeAxis.setLowerBound(xyzSeriesCollectionChartDefintion.getRangeMinimum());
                }
                if (xyzSeriesCollectionChartDefintion.getRangeMaximum() != ValueAxis.DEFAULT_UPPER_BOUND) {
                    rangeAxis.setUpperBound(xyzSeriesCollectionChartDefintion.getRangeMaximum());
                }
                if (xyzSeriesCollectionChartDefintion.getRangeTickFormat() != null) {
                    ((NumberAxis) rangeAxis).setNumberFormatOverride(xyzSeriesCollectionChartDefintion.getRangeTickFormat());
                }
                if (xyzSeriesCollectionChartDefintion.getRangeTickFont() != null) {
                    rangeAxis.setTickLabelFont(xyzSeriesCollectionChartDefintion.getRangeTickFont());
                }
            }
        }
    }
}

Example 2 with MeterInterval

use of org.jfree.chart.plot.MeterInterval in project SIMVA-SoS by SESoS.

the class MeterChartTest method testDrawWithNullInfo.

/**
 * Draws the chart with a single range.  At one point, this caused a null
 * pointer exception (fixed now).
 */
@Test
public void testDrawWithNullInfo() {
    MeterPlot plot = new MeterPlot(new DefaultValueDataset(60.0));
    plot.addInterval(new MeterInterval("Normal", new Range(0.0, 80.0)));
    JFreeChart chart = new JFreeChart(plot);
    BufferedImage image = new BufferedImage(200, 100, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
    g2.dispose();
// FIXME we should really assert a value here
}

Example 3 with MeterInterval

use of org.jfree.chart.plot.MeterInterval in project dhis2-core by dhis2.

the class DefaultChartService method getGaugeChart.

private JFreeChart getGaugeChart(PlotData plotData, ValueDataset dataSet) {
    MeterPlot meterPlot = new MeterPlot(dataSet);
    meterPlot.setUnits("");
    meterPlot.setRange(new Range(0.0d, 100d));
    for (int i = 0; i < 10; i++) {
        double start = i * 10d;
        double end = start + 10d;
        String label = String.valueOf(start);
        meterPlot.addInterval(new MeterInterval(label, new Range(start, end), COLOR_LIGHT_GRAY, null, COLOR_LIGHT_GRAY));
    }
    meterPlot.setMeterAngle(180);
    meterPlot.setDialBackgroundPaint(COLOR_LIGHT_GRAY);
    meterPlot.setDialShape(DialShape.CHORD);
    meterPlot.setNeedlePaint(COLORS[0]);
    meterPlot.setTickLabelsVisible(true);
    meterPlot.setTickLabelFont(LABEL_FONT);
    meterPlot.setTickLabelPaint(Color.BLACK);
    meterPlot.setTickPaint(COLOR_LIGHTER_GRAY);
    meterPlot.setValueFont(TITLE_FONT);
    meterPlot.setValuePaint(Color.BLACK);
    JFreeChart meterChart = new JFreeChart(plotData.getName(), meterPlot);
    setBasicConfig(meterChart, plotData);
    meterChart.removeLegend();
    return meterChart;
}

Example 4 with MeterInterval

use of org.jfree.chart.plot.MeterInterval in project pentaho-platform by pentaho.

the class DialWidgetDefinition method createDial.

/*
   * public ThermometerWidgetDefinition createThermometer( Document doc ) { // TODO implement this to return a
   * ThermometerWidgetDefinition object return null; }
   */
/**
 * Create a dial definition object from an XML document
 *
 * @param doc
 *          definition XML document
 * @return Dial definition object
 */
public static void createDial(final DialWidgetDefinition widgetDefinition, final Node dialNode, final int width, final int height, final IPentahoSession session) {
    // $NON-NLS-1$
    Node node = dialNode.selectSingleNode("units");
    if (node != null) {
        String units = node.getText();
        widgetDefinition.setUnits(units);
    }
    // set the background Paint
    // $NON-NLS-1$
    Paint paint = JFreeChartEngine.getPaint(dialNode.selectSingleNode("background-color"));
    if (paint == null) {
        // $NON-NLS-1$
        Element backgroundNode = (Element) dialNode.selectSingleNode("chart-background");
        if (backgroundNode != null) {
            // $NON-NLS-1$
            String backgroundType = backgroundNode.attributeValue("type");
            if ("texture".equals(backgroundType)) {
                // $NON-NLS-1$
                paint = JFreeChartEngine.getTexturePaint(backgroundNode, width, height, session);
            } else if ("gradient".equals(backgroundType)) {
                // $NON-NLS-1$
                paint = JFreeChartEngine.getGradientPaint(backgroundNode, width, height);
            }
        }
    } else {
        // log a deprecation warning for background-color ...
        DialWidgetDefinition.getLogger().warn(// $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        Messages.getInstance().getString("CHART.WARN_DEPRECATED_PROPERTY", "background-color", "chart-background"));
        DialWidgetDefinition.getLogger().warn(// $NON-NLS-1$ //$NON-NLS-2$
        Messages.getInstance().getString("CHART.WARN_PROPERTY_WILL_NOT_VALIDATE", "background-color"));
    }
    if (paint != null) {
        widgetDefinition.setChartBackgroundPaint(paint);
    }
    // set the dial background Paint
    // $NON-NLS-1$
    paint = JFreeChartEngine.getPaint(dialNode.selectSingleNode("plot-background-color"));
    if (paint == null) {
        // $NON-NLS-1$
        Element backgroundNode = (Element) dialNode.selectSingleNode("plot-background");
        if (backgroundNode != null) {
            // $NON-NLS-1$
            String backgroundType = backgroundNode.attributeValue("type");
            if ("texture".equals(backgroundType)) {
                // $NON-NLS-1$
                paint = JFreeChartEngine.getTexturePaint(backgroundNode, width, height, session);
            } else if ("gradient".equals(backgroundType)) {
                // $NON-NLS-1$
                paint = JFreeChartEngine.getGradientPaint(backgroundNode, width, height);
            }
        }
    } else {
        // log a deprecation warning for plot-background-color ...
        DialWidgetDefinition.getLogger().warn(Messages.getInstance().getString("CHART.WARN_DEPRECATED_PROPERTY", "plot-background-color", // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        "plot-background"));
        DialWidgetDefinition.getLogger().warn(// $NON-NLS-1$ //$NON-NLS-2$
        Messages.getInstance().getString("CHART.WARN_PROPERTY_WILL_NOT_VALIDATE", "plot-background-color"));
    }
    if (paint != null) {
        widgetDefinition.setPlotBackgroundPaint(paint);
    }
    // set the needle Paint
    // $NON-NLS-1$
    paint = JFreeChartEngine.getPaint(dialNode.selectSingleNode("needle-color"));
    if (paint != null) {
        widgetDefinition.setNeedlePaint(paint);
    }
    // set the tick Paint
    // $NON-NLS-1$
    paint = JFreeChartEngine.getPaint(dialNode.selectSingleNode("tick-color"));
    if (paint != null) {
        widgetDefinition.setTickPaint(paint);
    }
    // $NON-NLS-1$
    Node tmpNode = dialNode.selectSingleNode("tick-interval");
    if (tmpNode != null) {
        // $NON-NLS-1$
        widgetDefinition.setTickSize(Integer.parseInt(dialNode.selectSingleNode("tick-interval").getText()));
    }
    // set the value Paint
    // $NON-NLS-1$
    paint = JFreeChartEngine.getPaint(dialNode.selectSingleNode("value-color"));
    if (paint != null) {
        widgetDefinition.setValuePaint(paint);
    }
    // TODO get this from the XML document
    widgetDefinition.setDialShape(DialShape.CHORD);
    // $NON-NLS-1$
    Node titleFontNode = dialNode.selectSingleNode("title-font");
    if (titleFontNode != null) {
        // $NON-NLS-1$
        Node fontNode = titleFontNode.selectSingleNode("font");
        if (fontNode != null) {
            String titleFontStr = fontNode.getText().trim();
            if (!"".equals(titleFontStr)) {
                // $NON-NLS-1$
                // $NON-NLS-1$
                Node titleFontSizeNode = titleFontNode.selectSingleNode("size");
                int size = titleFontSizeNode != null ? Integer.parseInt(titleFontSizeNode.getText()) : 12;
                widgetDefinition.setTitleFont(new Font(titleFontStr, Font.BOLD, size));
            }
        } else {
            String titleFontStr = titleFontNode.getText().trim();
            if (!"".equals(titleFontStr)) {
                // $NON-NLS-1$
                widgetDefinition.setTitleFont(new Font(titleFontStr, Font.ITALIC, 24));
            }
        }
    }
    // $NON-NLS-1$
    Node valueFontNode = dialNode.selectSingleNode("domain-tick-font");
    if (valueFontNode != null) {
        // $NON-NLS-1$
        Node fontNode = valueFontNode.selectSingleNode("font");
        if (fontNode != null) {
            String fontStr = fontNode.getText().trim();
            if (!"".equals(fontStr)) {
                // $NON-NLS-1$
                // $NON-NLS-1$
                Node valueFontSizeNode = valueFontNode.selectSingleNode("size");
                int size = valueFontSizeNode != null ? Integer.parseInt(valueFontSizeNode.getText()) : 12;
                widgetDefinition.setValueFont(new Font(fontStr, Font.BOLD, size));
            }
        } else {
            String fontStr = valueFontNode.getText().trim();
            if (!"".equals(fontStr)) {
                // $NON-NLS-1$
                widgetDefinition.setValueFont(new Font(fontStr, Font.ITALIC, 24));
            }
        }
    }
    // set any intervals that are defined in the document
    // A list of interval nodes should not be allowed to exist as a child of the main XML element (for XML schema
    // to
    // be well constructed and validate the XML .
    // We have deprecated <interval> as a child of the main node , and now require an <intervals> parent node
    // under which <intervals> can exist.
    // $NON-NLS-1$
    List intervals = dialNode.selectNodes("interval");
    if ((intervals == null) || (intervals.isEmpty())) {
        // $NON-NLS-1$
        Node intervalsNode = dialNode.selectSingleNode("intervals");
        if (intervalsNode != null) {
            // $NON-NLS-1$
            intervals = intervalsNode.selectNodes("interval");
        }
    } else {
        // log a deprecation warning for this property...
        DialWidgetDefinition.getLogger().warn(// $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        Messages.getInstance().getString("CHART.WARN_DEPRECATED_CHILD", "interval", "intervals"));
        DialWidgetDefinition.getLogger().warn(// $NON-NLS-1$ //$NON-NLS-2$
        Messages.getInstance().getString("CHART.WARN_PROPERTY_WILL_NOT_VALIDATE", "interval"));
    }
    if (intervals != null) {
        Iterator intervalIterator = intervals.iterator();
        while (intervalIterator.hasNext()) {
            // get the interval node
            Node intervalNode = (Node) intervalIterator.next();
            // get the interval name
            // $NON-NLS-1$
            String label = intervalNode.selectSingleNode("label").getText();
            // get the range of the interval
            // $NON-NLS-1$
            double minimum = Double.parseDouble(intervalNode.selectSingleNode("minimum").getText());
            // $NON-NLS-1$
            double maximum = Double.parseDouble(intervalNode.selectSingleNode("maximum").getText());
            Range range = new Range(minimum, maximum);
            // $NON-NLS-1$
            Paint backgroundPaint = JFreeChartEngine.getPaint(intervalNode.selectSingleNode("color"));
            if (backgroundPaint == null) {
                // $NON-NLS-1$
                Element backgroundNode = (Element) intervalNode.selectSingleNode("interval-background");
                if (backgroundNode != null) {
                    // $NON-NLS-1$
                    String backgroundType = backgroundNode.attributeValue("type");
                    if ("texture".equals(backgroundType)) {
                        // $NON-NLS-1$
                        backgroundPaint = JFreeChartEngine.getTexturePaint(backgroundNode, width, height, session);
                    } else if ("gradient".equals(backgroundType)) {
                        // $NON-NLS-1$
                        backgroundPaint = JFreeChartEngine.getGradientPaint(backgroundNode, width, height);
                    }
                }
            }
            // get the text color of the interval
            // $NON-NLS-1$
            String textColor = intervalNode.selectSingleNode("text-color").getText();
            Stroke outlineStroke;
            if (intervalNode.selectSingleNode("stroke-width") != null) {
                // $NON-NLS-1$
                outlineStroke = // $NON-NLS-1$
                new BasicStroke(Float.parseFloat(intervalNode.selectSingleNode("stroke-width").getText()));
            } else {
                outlineStroke = new BasicStroke();
            }
            Paint outlinePaint = JFreeChartEngine.getPaint(textColor);
            // create the interval object
            MeterInterval interval = new MeterInterval(label, range, outlinePaint, outlineStroke, backgroundPaint);
            // add the interval to the widget
            widgetDefinition.addInterval(interval);
        }
    }
    // get the chart subtitles
    // A list of <subtitle> nodes should not be allowed to exist as a child of the main XML element (for XML schema
    // to
    // be well constructed and validate the XML .
    // We have deprecated <subtitle> as a child of the main node , and now require a <subtitles> parent node
    // under which <subtitle> can exist.
    List subtitles = dialNode.selectNodes(ChartDefinition.SUBTITLE_NODE_NAME);
    if ((subtitles == null) || (subtitles.isEmpty())) {
        Node subTitlesNode = dialNode.selectSingleNode(ChartDefinition.SUBTITLES_NODE_NAME);
        if (subTitlesNode != null) {
            subtitles = subTitlesNode.selectNodes(ChartDefinition.SUBTITLE_NODE_NAME);
        }
    } else {
        // log a deprecation warning for this property...
        DialWidgetDefinition.getLogger().warn(Messages.getInstance().getString("CHART.WARN_DEPRECATED_CHILD", ChartDefinition.SUBTITLE_NODE_NAME, // $NON-NLS-1$
        ChartDefinition.SUBTITLES_NODE_NAME));
        DialWidgetDefinition.getLogger().warn(Messages.getInstance().getString("CHART.WARN_PROPERTY_WILL_NOT_VALIDATE", // $NON-NLS-1$
        ChartDefinition.SUBTITLE_NODE_NAME));
    }
    if (subtitles != null) {
        widgetDefinition.addSubTitles(subtitles);
    }
}