Example usage for java.awt GradientPaint GradientPaint

List of usage examples for java.awt GradientPaint GradientPaint

Introduction

In this page you can find the example usage for java.awt GradientPaint GradientPaint.

Prototype

public GradientPaint(float x1, float y1, Color color1, float x2, float y2, Color color2) 

Source Link

Document

Constructs a simple acyclic GradientPaint object.

Usage

From source file:no.met.jtimeseries.marinogram.MarinogramWrapper.java

private static JFreeChart createJFreeChart(String title, Plot plot, int width) {
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, true);
    chart.setBorderVisible(false);// w w  w.  j  a  v a  2 s  .co  m
    Paint paint = new GradientPaint(0, 0, Color.WHITE, width, 0, Color.WHITE);
    chart.setBackgroundPaint(paint);
    return chart;
}

From source file:org.hxzon.demo.jfreechart.CategoryDatasetDemo2.java

private static JFreeChart createBarChart(CategoryDataset dataset) {

    CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
    ValueAxis valueAxis = new NumberAxis(valueAxisLabel);

    BarRenderer renderer = new BarRenderer();
    if (orientation == PlotOrientation.HORIZONTAL) {
        ItemLabelPosition position1 = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE3, TextAnchor.CENTER_LEFT);
        renderer.setBasePositiveItemLabelPosition(position1);
        ItemLabelPosition position2 = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE9, TextAnchor.CENTER_RIGHT);
        renderer.setBaseNegativeItemLabelPosition(position2);
    } else if (orientation == PlotOrientation.VERTICAL) {
        ItemLabelPosition position1 = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12,
                TextAnchor.BOTTOM_CENTER);
        renderer.setBasePositiveItemLabelPosition(position1);
        ItemLabelPosition position2 = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE6, TextAnchor.TOP_CENTER);
        renderer.setBaseNegativeItemLabelPosition(position2);
    }/* w w  w. jav  a2s  . c o m*/
    if (tooltips) {
        renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator());
    }
    if (urls) {
        renderer.setBaseItemURLGenerator(new StandardCategoryURLGenerator());
    }

    CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis, renderer);
    plot.setOrientation(orientation);
    JFreeChart chart = new JFreeChart("Bar Chart Demo 1", JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
    chart.setBackgroundPaint(Color.white);

    valueAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    renderer.setDrawBarOutline(false);

    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
    GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);

    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);

    categoryAxis
            .setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));

    return chart;

}

From source file:ReportGen.java

private void defaultPreview() throws NumberFormatException {

    tableModel = (DefaultTableModel) dataTable.getModel();
    tableModel.getDataVector().removeAllElements();
    tableModel.fireTableDataChanged();//from w  w  w.  java2 s .c  o  m
    String str[] = { "X", "Y" };
    tableModel.setColumnIdentifiers(str);

    exportcounttableexcel.setEnabled(false);
    exportcounttablepdf.setEnabled(false);
    //        exportgraphtoimage.setEnabled(false);

    ChartPanel chartPanel;
    displaypane.removeAll();
    displaypane.revalidate();
    displaypane.repaint();
    displaypane.setLayout(new BorderLayout());
    //row
    String series1 = "Results";
    //column
    String values[] = { "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-" };
    int value[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
    for (int i = 0; i < values.length; i++) {
        tableModel.addRow(new Object[] { values[i], value[i] });
    }

    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    for (int c = 0; c < value.length; c++) {
        dataset.addValue(value[c], series1, values[c]);
    }

    chart = ChartFactory.createBarChart("181 North Place Residences Graph", // chart title
            "Default", // domain axis label
            "Value", // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // orientation
            true, // include legend
            true, // tooltips
            false // urls
    );

    // set the background color for the chart...
    chart.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...
    final CategoryPlot plot = chart.getCategoryPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    // set the range axis to display integers only...
    final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    // disable bar outlines...
    final BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);

    // set up gradient paints for series...
    final GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, Color.lightGray);
    final GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, Color.lightGray);
    final GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, Color.lightGray);
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);

    final org.jfree.chart.axis.CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));
    chartPanel = new ChartPanel(chart);
    displaypane.add(chartPanel, BorderLayout.CENTER);
}

From source file:org.hxzon.demo.jfreechart.CategoryDatasetDemo.java

private static JFreeChart createStackedBarChart3D(CategoryDataset dataset) {

    JFreeChart chart = ChartFactory.createStackedBarChart3D("StackedBar Chart 3D Demo 1", // chart title
            "Category", // domain axis label
            "Value", // range axis label
            dataset, // data
            PlotOrientation.HORIZONTAL, // orientation
            true, // include legend
            true, // tooltips?
            false // URLs?
    );/*ww w .  j  a  v  a  2  s .  c  o m*/

    chart.setBackgroundPaint(Color.white);

    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    // set the range axis to display integers only...
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    BarRenderer renderer = (BarRenderer) plot.getRenderer();

    // set up gradient paints for series...
    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
    GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);

    return chart;

}

From source file:edu.ucla.stat.SOCR.chart.demo.BarChartDemo1.java

protected JFreeChart createLegend(CategoryDataset dataset) {
    domainLabel = "Category";
    rangeLabel = "Value";
    //  JFreeChart chart = ChartFactory.createAreaChart(
    JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title
            domainLabel, // domain axis label
            rangeLabel, // range axis label
            dataset, // data
            PlotOrientation.VERTICAL, // orientation
            true, // include legend
            true, // tooltips
            false // urls
    );/*w  w  w . ja  va  2  s  .  com*/

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
    chart.setBackgroundPaint(Color.white);
    CategoryPlot plot = chart.getCategoryPlot();

    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    // set up gradient paints for series...
    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
    GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);
    // renderer.setDrawOutlines(true);
    // renderer.setUseFillPaint(true);
    // renderer.setFillPaint(Color.white);
    renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator());
    return chart;

}

From source file:RDGraphGenerator.java

/**
 * Creates a sample chart./*from   w ww .  j a  v a2s  .c  o m*/
 *
 * @param dataset  the dataset for the chart.
 *
 * @return A sample chart.
 */
private JFreeChart createDistChart(String riderID) {

    String riderName = (String) riders.get(riderID);
    final JFreeChart chart = ChartFactory.createStackedBarChart(riderName + "'s Distances", // chart title
            "Month", // domain axis label
            mainDist, // range axis label
            (CategoryDataset) riderDistances.get(riderID), // data
            PlotOrientation.VERTICAL, // the plot orientation
            true, // legend
            true, // tooltips
            false // urls
    );

    GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
    KeyToGroupMap map = new KeyToGroupMap("G1");
    map.mapKeyToGroup("0", "G1");
    map.mapKeyToGroup("1", "G1");
    map.mapKeyToGroup("2", "G1");
    map.mapKeyToGroup("3", "G1");
    renderer.setSeriesToGroupMap(map);

    renderer.setItemMargin(0.0);
    Paint p1 = new GradientPaint(0.0f, 0.0f, new Color(0x22, 0x22, 0xFF), 0.0f, 0.0f,
            new Color(0x88, 0x88, 0xFF));
    renderer.setSeriesPaint(0, p1);

    Paint p2 = new GradientPaint(0.0f, 0.0f, new Color(0x22, 0xFF, 0x22), 0.0f, 0.0f,
            new Color(0x88, 0xFF, 0x88));
    renderer.setSeriesPaint(1, p2);

    Paint p3 = new GradientPaint(0.0f, 0.0f, new Color(0xFF, 0x22, 0x22), 0.0f, 0.0f,
            new Color(0xFF, 0x88, 0x88));
    renderer.setSeriesPaint(2, p3);

    Paint p4 = new GradientPaint(0.0f, 0.0f, new Color(0xFF, 0xFF, 0x22), 0.0f, 0.0f,
            new Color(0xFF, 0xFF, 0x88));
    renderer.setSeriesPaint(3, p4);
    renderer.setGradientPaintTransformer(
            new StandardGradientPaintTransformer(GradientPaintTransformType.HORIZONTAL));

    CategoryPlot plot = (CategoryPlot) chart.getPlot();
    plot.setRenderer(renderer);
    plot.setFixedLegendItems(createLegendItems());
    ValueAxis va = (ValueAxis) plot.getRangeAxis();
    ValueAxis ova = null;
    try {
        ova = (ValueAxis) va.clone();
    } catch (CloneNotSupportedException cnse) {
    }
    ova.setLabel(secondaryDist);
    ova.setLowerBound(va.getLowerBound() * unitConversion);
    ova.setUpperBound(va.getUpperBound() * unitConversion);
    plot.setRangeAxis(1, ova);
    plot.setRangeAxisLocation(1, AxisLocation.TOP_OR_RIGHT);
    CategoryAxis ca = plot.getDomainAxis();
    ca.setCategoryLabelPositions(CategoryLabelPositions.DOWN_90);
    //Make around the chart transparent.
    chart.setBackgroundPaint(null);
    return chart;

}

From source file:lospolloshermanos.BarChart.java

/**
 * Creates a sample chart.// w  ww .jav  a  2 s.  c o  m
 * 
 * @param dataset  the dataset.
 * 
 * @return The chart.
 */
private JFreeChart createChart(CategoryDataset dataset) {

    // create the chart...
    JFreeChart chart = null;
    if (Title.equals("Categories")) {
        chart = ChartFactory.createBarChart("Sales Chart for Categories vs Quantity", // chart title
                "Categories", // domain axis label
                "Quantity", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips?
                false // URLs?
        );
    } else if (Title.equals("Categories 2")) {
        chart = ChartFactory.createBarChart("Sales Chart for Categories Vs Total Amount", // chart title
                "Categories", // domain axis label
                "Sub Total", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips?
                false // URLs?
        );
    } else if (Title.equals("Items")) {
        chart = ChartFactory.createBarChart("Top 5 items vs Quantity sales ", // chart title
                "Items", // domain axis label
                "Quantity", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips?
                false // URLs?
        );
    } else if (Title.equals("Items 2")) {
        chart = ChartFactory.createBarChart("Top 5 items vs Quantity sales ", // chart title
                "Items", // domain axis label
                "Sub Total", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips?
                false // URLs?
        );
    } else if (Title.equals("Ratings")) {
        chart = ChartFactory.createBarChart("Ratings ", // chart title
                "Type", // domain axis label
                "Rating Value", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips?
                false // URLs?
        );
    }

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

    // set the background color for the chart...
    chart.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...
    CategoryPlot plot = chart.getCategoryPlot();
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinePaint(Color.white);
    plot.setDomainGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.white);

    // set the range axis to display integers only...
    final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    // disable bar outlines...
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setDrawBarOutline(false);

    // set up gradient paints for series...
    GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
    GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
    GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
    renderer.setSeriesPaint(0, gp0);
    renderer.setSeriesPaint(1, gp1);
    renderer.setSeriesPaint(2, gp2);

    CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));
    // OPTIONAL CUSTOMISATION COMPLETED.

    return chart;

}

From source file:org.pentaho.chart.plugin.jfreechart.utils.JFreeChartUtils.java

/**
 * Creates a GradientPaint object from the current series element using
 * the gradient pertinent information.//from   ww w.  ja va 2s .  c  o  m
 * <p/>
 * The gradient paint contains color and start and end co-ordinates for the
 * gradient. If the gradient type is not none and not points, then the
 * gradient paint simply contains color information.
 * <p/>
 * If the required information from the chart element was not available then returns a null.
 *
 * @param ce The ChartElement to be used to create the GradientPaint object.
 * @return GradientPaint Returns the newly created GradientPaint object.
 */
public static GradientPaint getGradientPaint(final ChartElement ce) {
    GradientPaint gradPaint = null;
    final LayoutStyle layoutStyle = ce.getLayoutStyle();

    if (layoutStyle != null) {
        final CSSValue gradType = layoutStyle.getValue(ChartStyleKeys.GRADIENT_TYPE);
        final Color[] gradColors = JFreeChartUtils.getGradientColors(ce);
        if (ChartGradientType.POINTS.equals(gradType)) {
            final CSSValuePair gradStart = (CSSValuePair) layoutStyle.getValue(ChartStyleKeys.GRADIENT_START);
            final CSSValuePair gradEnd = (CSSValuePair) layoutStyle.getValue(ChartStyleKeys.GRADIENT_END);
            // Get the start and end co-ordinates for the gradient start and end.

            final float x1 = (float) ((CSSNumericValue) gradStart.getFirstValue()).getValue();
            final float y1 = (float) ((CSSNumericValue) gradStart.getSecondValue()).getValue();
            final float x2 = (float) ((CSSNumericValue) gradEnd.getFirstValue()).getValue();
            final float y2 = (float) ((CSSNumericValue) gradEnd.getSecondValue()).getValue();

            gradPaint = new GradientPaint(x1, y1, gradColors[0], x2, y2, gradColors[1]);
        } else if (!gradType.equals(ChartGradientType.NONE)) {
            /*
             * For gradient types like HORIZONTAL, VERTICAL, etc we do not consider x1, y1 
             * and x2, y2 as start and end points since the renderer would figure that out
             * on it's own. So we have static 0's for start and end co-ordinates.
             */
            gradPaint = new GradientPaint(0f, 0f, gradColors[0], 0f, 0f, gradColors[1]);
        }
    }
    return gradPaint;
}

From source file:com.manydesigns.portofino.chart.ChartStackedBarGenerator.java

public JFreeChart generate(ChartDefinition chartDefinition, Persistence persistence, Locale locale) {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    java.util.List<Object[]> result;
    String query = chartDefinition.getQuery();
    logger.info(query);//from   w  w  w  . jav  a2  s .  co  m
    Session session = persistence.getSession(chartDefinition.getDatabase());
    result = QueryUtils.runSql(session, query);
    for (Object[] current : result) {
        ComparableWrapper x = new ComparableWrapper((Comparable) current[0]);
        ComparableWrapper y = new ComparableWrapper((Comparable) current[1]);
        if (current.length > 3) {
            x.setLabel(current[3].toString());
        }
        if (current.length > 4) {
            y.setLabel(current[4].toString());
        }
        dataset.setValue((Number) current[2], x, y);
    }

    PlotOrientation plotOrientation = PlotOrientation.HORIZONTAL;
    if (chartDefinition.getActualOrientation() == ChartDefinition.Orientation.VERTICAL) {
        plotOrientation = PlotOrientation.VERTICAL;
    }

    JFreeChart chart = createChart(chartDefinition, dataset, plotOrientation);

    chart.setAntiAlias(antiAlias);

    // impostiamo il bordo invisibile
    // eventualmente e' il css a fornirne uno
    chart.setBorderVisible(borderVisible);

    // impostiamo il titolo
    TextTitle title = chart.getTitle();
    title.setFont(titleFont);
    title.setMargin(10.0, 0.0, 0.0, 0.0);

    // ottieni il Plot
    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    CategoryItemRenderer renderer = plot.getRenderer();
    String urlExpression = chartDefinition.getUrlExpression();
    if (!StringUtils.isBlank(urlExpression)) {
        CategoryURLGenerator urlGenerator = new ChartBarUrlGenerator(chartDefinition.getUrlExpression());
        renderer.setBaseItemURLGenerator(urlGenerator);
    } else {
        renderer.setBaseItemURLGenerator(null);
    }
    renderer.setBaseOutlinePaint(Color.BLACK);

    // ///////////////
    if (renderer instanceof BarRenderer) {
        BarRenderer barRenderer = (BarRenderer) renderer;

        barRenderer.setDrawBarOutline(true);
        barRenderer.setShadowVisible(false);
        barRenderer.setBarPainter(new StandardBarPainter());

        // hongliangpan add
        // ?
        barRenderer.setSeriesItemLabelGenerator(0, new StandardCategoryItemLabelGenerator());
        // bar???
        barRenderer.setMinimumBarLength(0.02);
        // 
        barRenderer.setMaximumBarWidth(0.06);
    }
    if (renderer instanceof StackedBarRenderer3D || renderer instanceof StackedBarRenderer) {
        BarRenderer barRenderer = (BarRenderer) renderer;
        barRenderer.setDrawBarOutline(true);
        barRenderer.setShadowVisible(false);
        barRenderer.setBarPainter(new StandardBarPainter());

        // hongliangpan add
        // ? setSeriesItemLabelGenerator
        barRenderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        // bar???
        barRenderer.setMinimumBarLength(0.02);
        // 
        barRenderer.setMaximumBarWidth(0.06);
        // ?????
        ItemLabelPosition itemLabelPositionFallback = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12,
                TextAnchor.BASELINE_LEFT, TextAnchor.HALF_ASCENT_LEFT, -1.57D);
        // ??labelposition
        barRenderer.setPositiveItemLabelPositionFallback(itemLabelPositionFallback);
        barRenderer.setNegativeItemLabelPositionFallback(itemLabelPositionFallback);

        barRenderer.setItemLabelsVisible(true);
        barRenderer.setItemMargin(10);
    }

    // ///////////////

    // il plot ha sfondo e bordo trasparente
    // (quindi si vede il colore del chart)
    plot.setBackgroundPaint(transparentColor);
    plot.setOutlinePaint(transparentColor);

    // Modifico il toolTip
    // plot.setToolTipGenerator(new StandardPieToolTipGenerator("{0} = {1} ({2})"));

    // imposta il messaggio se non ci sono dati
    plot.setNoDataMessage(ElementsThreadLocals.getText("no.data.available"));
    plot.setRangeGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.GRAY);
    plot.setAxisOffset(new RectangleInsets(0, 0, 0, 0));

    // Category axis
    CategoryAxis categoryAxis = plot.getDomainAxis();
    categoryAxis.setAxisLinePaint(Color.BLACK);
    categoryAxis.setLabelFont(axisFont);
    categoryAxis.setAxisLineVisible(true);

    // impostiamo la rotazione dell'etichetta
    if (plot.getOrientation() == PlotOrientation.VERTICAL) {
        CategoryLabelPosition pos = new CategoryLabelPosition(RectangleAnchor.TOP_LEFT,
                TextBlockAnchor.TOP_RIGHT, TextAnchor.TOP_RIGHT, -Math.PI / 4.0,
                CategoryLabelWidthType.CATEGORY, 100);
        CategoryLabelPositions positions = new CategoryLabelPositions(pos, pos, pos, pos);
        categoryAxis.setCategoryLabelPositions(positions);
        categoryAxis.setMaximumCategoryLabelWidthRatio(6.0f);
        height = 333;
    } else {
        categoryAxis.setMaximumCategoryLabelWidthRatio(0.4f);

        // recuperiamo 8 pixel a sinistra
        plot.setInsets(new RectangleInsets(4.0, 0.0, 4.0, 8.0));

        height = 74;

        // contiamo gli elementi nel dataset
        height += 23 * dataset.getColumnCount();

        height += 57;
    }

    Axis rangeAxis = plot.getRangeAxis();
    rangeAxis.setAxisLinePaint(Color.BLACK);
    rangeAxis.setLabelFont(axisFont);

    DrawingSupplier supplier = new DesaturatedDrawingSupplier(plot.getDrawingSupplier());
    plot.setDrawingSupplier(supplier);

    // impostiamo il titolo della legenda
    String legendString = chartDefinition.getLegend();
    Title subtitle = new TextTitle(legendString, legendFont, Color.BLACK, RectangleEdge.BOTTOM,
            HorizontalAlignment.CENTER, VerticalAlignment.CENTER, new RectangleInsets(0, 0, 0, 0));
    subtitle.setMargin(0, 0, 5, 0);
    chart.addSubtitle(subtitle);

    // impostiamo la legenda
    LegendTitle legend = chart.getLegend();
    legend.setBorder(0, 0, 0, 0);
    legend.setItemFont(legendItemFont);
    int legendMargin = 10;
    legend.setMargin(0.0, legendMargin, legendMargin, legendMargin);
    legend.setBackgroundPaint(transparentColor);

    // impostiamo un gradiente orizzontale
    Paint chartBgPaint = new GradientPaint(0, 0, new Color(255, 253, 240), 0, height, Color.WHITE);
    chart.setBackgroundPaint(chartBgPaint);
    return chart;
}

From source file:com.manydesigns.portofino.chart.ChartBarGenerator.java

public JFreeChart generate(ChartDefinition chartDefinition, Persistence persistence, Locale locale) {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    java.util.List<Object[]> result;
    String query = chartDefinition.getQuery();
    logger.info(query);//ww w  .  jav a 2s.  co m
    Session session = persistence.getSession(chartDefinition.getDatabase());
    result = QueryUtils.runSql(session, query);
    for (Object[] current : result) {
        ComparableWrapper x = new ComparableWrapper((Comparable) current[0]);
        ComparableWrapper y = new ComparableWrapper((Comparable) current[1]);
        if (current.length > 3) {
            x.setLabel(current[3].toString());
        }
        if (current.length > 4) {
            y.setLabel(current[4].toString());
        }
        dataset.setValue((Number) current[2], x, y);
    }

    PlotOrientation plotOrientation = PlotOrientation.HORIZONTAL;
    if (chartDefinition.getActualOrientation() == ChartDefinition.Orientation.VERTICAL) {
        plotOrientation = PlotOrientation.VERTICAL;
    }

    JFreeChart chart = createChart(chartDefinition, dataset, plotOrientation);

    chart.setAntiAlias(antiAlias);

    // impostiamo il bordo invisibile
    // eventualmente e' il css a fornirne uno
    chart.setBorderVisible(borderVisible);

    // impostiamo il titolo
    TextTitle title = chart.getTitle();
    title.setFont(titleFont);
    title.setMargin(10.0, 0.0, 0.0, 0.0);

    // ottieni il Plot
    CategoryPlot plot = (CategoryPlot) chart.getPlot();

    CategoryItemRenderer renderer = plot.getRenderer();
    String urlExpression = chartDefinition.getUrlExpression();
    if (!StringUtils.isBlank(urlExpression)) {
        CategoryURLGenerator urlGenerator = new ChartBarUrlGenerator(chartDefinition.getUrlExpression());
        renderer.setBaseItemURLGenerator(urlGenerator);
    } else {
        renderer.setBaseItemURLGenerator(null);
    }
    renderer.setBaseOutlinePaint(Color.BLACK);

    // ///////////////
    if (renderer instanceof BarRenderer || renderer instanceof BarRenderer3D) {
        BarRenderer barRenderer = (BarRenderer) renderer;

        barRenderer.setDrawBarOutline(true);
        barRenderer.setShadowVisible(false);
        barRenderer.setBarPainter(new StandardBarPainter());

        // hongliangpan add
        barRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        barRenderer.setBaseItemLabelsVisible(true);
        // ? setSeriesItemLabelGenerator
        barRenderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        // bar???
        barRenderer.setMinimumBarLength(0.02);
        // 
        barRenderer.setMaximumBarWidth(0.05);
        // ?????
        // ??90,??/3.14
        ItemLabelPosition itemLabelPositionFallback = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12,
                TextAnchor.BASELINE_LEFT, TextAnchor.HALF_ASCENT_LEFT, -1.57D);
        // ??labelposition
        // barRenderer.setPositiveItemLabelPositionFallback(itemLabelPositionFallback);
        // barRenderer.setNegativeItemLabelPositionFallback(itemLabelPositionFallback);

        barRenderer.setItemLabelsVisible(true);

        // ?
        barRenderer.setBaseOutlinePaint(Color.BLACK);
        // ???
        barRenderer.setDrawBarOutline(true);

        // ???
        barRenderer.setItemMargin(0.0);

        // ?
        barRenderer.setIncludeBaseInRange(true);
        barRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        barRenderer.setBaseItemLabelsVisible(true);
        // ?
        plot.setForegroundAlpha(1.0f);
    }

    // ///////////////

    // il plot ha sfondo e bordo trasparente
    // (quindi si vede il colore del chart)
    plot.setBackgroundPaint(transparentColor);
    plot.setOutlinePaint(transparentColor);

    // Modifico il toolTip
    // plot.setToolTipGenerator(new StandardPieToolTipGenerator("{0} = {1} ({2})"));

    // imposta il messaggio se non ci sono dati
    plot.setNoDataMessage(ElementsThreadLocals.getText("no.data.available"));
    plot.setRangeGridlinesVisible(true);
    plot.setRangeGridlinePaint(Color.GRAY);
    plot.setAxisOffset(new RectangleInsets(0, 0, 0, 0));

    // Category axis
    CategoryAxis categoryAxis = plot.getDomainAxis();
    categoryAxis.setAxisLinePaint(Color.BLACK);
    categoryAxis.setLabelFont(axisFont);
    categoryAxis.setAxisLineVisible(true);

    // impostiamo la rotazione dell'etichetta
    if (plot.getOrientation() == PlotOrientation.VERTICAL) {
        CategoryLabelPosition pos = new CategoryLabelPosition(RectangleAnchor.TOP_LEFT,
                TextBlockAnchor.TOP_RIGHT, TextAnchor.TOP_RIGHT, -Math.PI / 4.0,
                CategoryLabelWidthType.CATEGORY, 100);
        CategoryLabelPositions positions = new CategoryLabelPositions(pos, pos, pos, pos);
        categoryAxis.setCategoryLabelPositions(positions);
        categoryAxis.setMaximumCategoryLabelWidthRatio(6.0f);
        height = 333;
    } else {
        categoryAxis.setMaximumCategoryLabelWidthRatio(0.4f);

        // recuperiamo 8 pixel a sinistra
        plot.setInsets(new RectangleInsets(4.0, 0.0, 4.0, 8.0));

        height = 74;

        // contiamo gli elementi nel dataset
        height += 23 * dataset.getColumnCount();

        height += 57;
    }

    Axis rangeAxis = plot.getRangeAxis();
    rangeAxis.setAxisLinePaint(Color.BLACK);
    rangeAxis.setLabelFont(axisFont);

    DrawingSupplier supplier = new DesaturatedDrawingSupplier(plot.getDrawingSupplier());
    plot.setDrawingSupplier(supplier);

    // impostiamo il titolo della legenda
    String legendString = chartDefinition.getLegend();
    Title subtitle = new TextTitle(legendString, legendFont, Color.BLACK, RectangleEdge.BOTTOM,
            HorizontalAlignment.CENTER, VerticalAlignment.CENTER, new RectangleInsets(0, 0, 0, 0));
    subtitle.setMargin(0, 0, 5, 0);
    chart.addSubtitle(subtitle);

    // impostiamo la legenda
    LegendTitle legend = chart.getLegend();
    legend.setBorder(0, 0, 0, 0);
    legend.setItemFont(legendItemFont);
    int legendMargin = 10;
    legend.setMargin(0.0, legendMargin, legendMargin, legendMargin);
    legend.setBackgroundPaint(transparentColor);

    // impostiamo un gradiente orizzontale
    Paint chartBgPaint = new GradientPaint(0, 0, new Color(255, 253, 240), 0, height, Color.WHITE);
    chart.setBackgroundPaint(chartBgPaint);
    return chart;
}