Example usage for org.jfree.chart.plot Plot setForegroundAlpha

List of usage examples for org.jfree.chart.plot Plot setForegroundAlpha

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Introduction

In this page you can find the example usage for org.jfree.chart.plot Plot setForegroundAlpha.

Prototype

public void setForegroundAlpha(float alpha)

Source Link

Document

Sets the alpha-transparency for the plot and sends a PlotChangeEvent to all registered listeners.

Usage

From source file:org.toobsframework.pres.chart.ChartUtil.java

public static void configurePlot(IRequest componentRequest, Plot plot,
        org.toobsframework.pres.chart.config.BasePlot plotDef, DomainAxisDef categoryAxisDef,
        RangeAxisDef valueAxisDef, Map params) {
    if (plotDef != null) {
        float foregroundAlpha = Float.parseFloat(
                ParameterUtil.resolveParam(componentRequest, plotDef.getForegroundAlpha(), params, "1.0")[0]);
        plot.setForegroundAlpha(foregroundAlpha);

        if (plot instanceof CategoryPlot && ParameterUtil.resolveParam(componentRequest,
                plotDef.getOrientation(), params, "horizontal")[0].equals("horizontal")) {
            ((CategoryPlot) plot).setOrientation(PlotOrientation.HORIZONTAL);
            boolean is3D = (ParameterUtil.resolveParam(componentRequest, plotDef.getIs3D(), params, "false")[0]
                    .equals("false") ? false : true);
            if (is3D) {
                ((CategoryPlot) plot).setRowRenderingOrder(SortOrder.DESCENDING);
                ((CategoryPlot) plot).setColumnRenderingOrder(SortOrder.DESCENDING);
            }//from  w  w w. j a va2 s . c om
        } else if (plot instanceof CategoryPlot) {
            ((CategoryPlot) plot).setOrientation(PlotOrientation.VERTICAL);
        }

        if (plotDef.getInsets() != null) {
            plot.setInsets(getRectangle(componentRequest, plotDef.getInsets(), params));
        }
        if (plot instanceof CategoryPlot && plotDef.getAxisOffsets() != null) {
            ((CategoryPlot) plot)
                    .setAxisOffset(getRectangle(componentRequest, plotDef.getAxisOffsets(), params));
        }

        if (plotDef.getBackgroundColor() != null) {
            plot.setBackgroundPaint(getColor(plotDef.getBackgroundColor()));
        }
        if (plot instanceof CategoryPlot && categoryAxisDef != null) {
            AxisLocation dLabelPos = axisLocations.get(ParameterUtil.resolveParam(componentRequest,
                    categoryAxisDef.getLocation(), params, "bottomOrLeft")[0]);
            if (dLabelPos != null) {
                ((CategoryPlot) plot).setDomainAxisLocation(dLabelPos);
            }
            ((CategoryPlot) plot).setDomainGridlinesVisible(categoryAxisDef.getShowGridlines());
            if (categoryAxisDef.getGridColor() != null) {
                ((CategoryPlot) plot).setDomainGridlinePaint(getColor(categoryAxisDef.getGridColor()));
            }
        }
        if (plot instanceof CategoryPlot && valueAxisDef != null) {
            AxisLocation rLabelPos = axisLocations.get(ParameterUtil.resolveParam(componentRequest,
                    valueAxisDef.getLocation(), params, "bottomOrRight")[0]);
            if (rLabelPos != null) {
                ((CategoryPlot) plot).setRangeAxisLocation(rLabelPos);
            }
            ((CategoryPlot) plot).setRangeGridlinesVisible(valueAxisDef.getShowGridlines());
            if (valueAxisDef.getGridColor() != null) {
                ((CategoryPlot) plot).setRangeGridlinePaint(getColor(valueAxisDef.getGridColor()));
            }
        }
    }
}

From source file:com.xpn.xwiki.plugin.charts.ChartCustomizer.java

public static void customizePlot(Plot plot, ChartParams params) {
    if (params.get(ChartParams.PLOT_BACKGROUND_COLOR) != null) {
        plot.setBackgroundPaint(params.getColor(ChartParams.PLOT_BACKGROUND_COLOR));
    }//from w  ww  . j a  v a 2  s  . co  m

    if (params.get(ChartParams.PLOT_BACKGROUND_ALPHA) != null) {
        plot.setBackgroundAlpha(params.getFloat(ChartParams.PLOT_BACKGROUND_ALPHA).floatValue());
    }

    if (params.get(ChartParams.PLOT_FOREGROUND_ALPHA) != null) {
        plot.setForegroundAlpha(params.getFloat(ChartParams.PLOT_FOREGROUND_ALPHA).floatValue());
    }

    if (params.get(ChartParams.PLOT_INSERTS) != null) {
        plot.setInsets(params.getRectangleInsets(ChartParams.PLOT_INSERTS));
    }

    if (params.get(ChartParams.PLOT_OUTLINE_COLOR) != null) {
        plot.setOutlinePaint(params.getColor(ChartParams.PLOT_OUTLINE_COLOR));
    }

    if (params.get(ChartParams.PLOT_OUTLINE_STROKE) != null) {
        plot.setOutlineStroke(params.getStroke(ChartParams.PLOT_OUTLINE_STROKE));
    }
}

From source file:com.igalia.java.zk.components.JFreeChartEngine.java

public byte[] drawChart(Object data) {
    Chart chart = (Chart) data;/*from  w  w  w .j a v  a  2 s  .c  om*/
    ChartImpl impl = getChartImpl(chart);
    JFreeChart jfchart = impl.createChart(chart);

    Plot plot = (Plot) jfchart.getPlot();
    float alpha = (float) (((float) chart.getFgAlpha()) / 255);
    plot.setForegroundAlpha(alpha);

    alpha = (float) (((float) chart.getBgAlpha()) / 255);
    plot.setBackgroundAlpha(alpha);

    int[] bgRGB = chart.getBgRGB();
    if (bgRGB != null) {
        plot.setBackgroundPaint(new Color(bgRGB[0], bgRGB[1], bgRGB[2], chart.getBgAlpha()));
    }

    int[] paneRGB = chart.getPaneRGB();
    if (paneRGB != null) {
        jfchart.setBackgroundPaint(new Color(paneRGB[0], paneRGB[1], paneRGB[2], chart.getPaneAlpha()));
    }

    //since 3.6.3, JFreeChart 1.0.13 change default fonts which does not support Chinese, allow
    //developer to set font.

    //title font
    final Font tfont = chart.getTitleFont();
    if (tfont != null) {
        jfchart.getTitle().setFont(tfont);
    }

    //legend font
    final Font lfont = chart.getLegendFont();
    if (lfont != null) {
        jfchart.getLegend().setItemFont(lfont);
    }

    if (plot instanceof CategoryPlot) {
        final CategoryPlot cplot = (CategoryPlot) plot;
        cplot.setRangeGridlinePaint(new Color(0xc0, 0xc0, 0xc0));

        //Domain axis(x axis)
        final Font xlbfont = chart.getXAxisFont();
        final Font xtkfont = chart.getXAxisTickFont();
        if (xlbfont != null) {
            cplot.getDomainAxis().setLabelFont(xlbfont);
        }
        if (xtkfont != null) {
            cplot.getDomainAxis().setTickLabelFont(xtkfont);
        }

        Color[] colorMappings = (Color[]) chart.getAttribute("series-color-mappings");
        if (colorMappings != null) {
            for (int ii = 0; ii < colorMappings.length; ii++) {
                cplot.getRenderer().setSeriesPaint(ii, colorMappings[ii]);
            }
        }

        Double lowerBound = (Double) chart.getAttribute("range-axis-lower-bound");
        if (lowerBound != null) {
            cplot.getRangeAxis().setAutoRange(false);
            cplot.getRangeAxis().setLowerBound(lowerBound);
        }

        Double upperBound = (Double) chart.getAttribute("range-axis-upper-bound");
        if (upperBound != null) {
            cplot.getRangeAxis().setAutoRange(false);
            cplot.getRangeAxis().setUpperBound(upperBound);
        }

        //Range axis(y axis)
        final Font ylbfont = chart.getYAxisFont();
        final Font ytkfont = chart.getYAxisTickFont();
        if (ylbfont != null) {
            cplot.getRangeAxis().setLabelFont(ylbfont);
        }
        if (ytkfont != null) {
            cplot.getRangeAxis().setTickLabelFont(ytkfont);
        }
    } else if (plot instanceof XYPlot) {
        final XYPlot xyplot = (XYPlot) plot;
        xyplot.setRangeGridlinePaint(Color.LIGHT_GRAY);
        xyplot.setDomainGridlinePaint(Color.LIGHT_GRAY);

        //Domain axis(x axis)
        final Font xlbfont = chart.getXAxisFont();
        final Font xtkfont = chart.getXAxisTickFont();
        if (xlbfont != null) {
            xyplot.getDomainAxis().setLabelFont(xlbfont);
        }
        if (xtkfont != null) {
            xyplot.getDomainAxis().setTickLabelFont(xtkfont);
        }

        //Range axis(y axis)
        final Font ylbfont = chart.getYAxisFont();
        final Font ytkfont = chart.getYAxisTickFont();
        if (ylbfont != null) {
            xyplot.getRangeAxis().setLabelFont(ylbfont);
        }
        if (ytkfont != null) {
            xyplot.getRangeAxis().setTickLabelFont(ytkfont);
        }
    } else if (plot instanceof PiePlot) {
        plot.setOutlineStroke(null);
    }

    //callbacks for each area
    ChartRenderingInfo jfinfo = new ChartRenderingInfo();
    BufferedImage bi = jfchart.createBufferedImage(chart.getIntWidth(), chart.getIntHeight(),
            Transparency.TRANSLUCENT, jfinfo);

    //remove old areas
    if (chart.getChildren().size() > 20)
        chart.invalidate(); //improve performance if too many chart
    chart.getChildren().clear();

    if (Events.isListened(chart, Events.ON_CLICK, false) || chart.isShowTooltiptext()) {
        int j = 0;
        String preUrl = null;
        for (Iterator it = jfinfo.getEntityCollection().iterator(); it.hasNext();) {
            ChartEntity ce = (ChartEntity) it.next();
            final String url = ce.getURLText();

            //workaround JFreeChart's bug (skip replicate areas)
            if (url != null) {
                if (preUrl == null) {
                    preUrl = url;
                } else if (url.equals(preUrl)) { //start replicate, skip
                    break;
                }
            }

            //1. JFreeChartEntity area cover the whole chart, will "mask" other areas
            //2. LegendTitle area cover the whole legend, will "mask" each legend
            //3. PlotEntity cover the whole chart plotting araa, will "mask" each bar/line/area
            if (!(ce instanceof JFreeChartEntity)
                    && !(ce instanceof TitleEntity && ((TitleEntity) ce).getTitle() instanceof LegendTitle)
                    && !(ce instanceof PlotEntity)) {
                Area area = new Area();
                area.setParent(chart);
                area.setCoords(ce.getShapeCoords());
                area.setShape(ce.getShapeType());
                area.setId("area_" + chart.getId() + '_' + (j++));
                if (chart.isShowTooltiptext() && ce.getToolTipText() != null) {
                    area.setTooltiptext(ce.getToolTipText());
                }
                area.setAttribute("url", ce.getURLText());
                impl.render(chart, area, ce);
                if (chart.getAreaListener() != null) {
                    try {
                        chart.getAreaListener().onRender(area, ce);
                    } catch (Exception ex) {
                        throw UiException.Aide.wrap(ex);
                    }
                }
            }
        }
    }
    //clean up the "LEGEND_SEQ"
    //used for workaround LegendItemEntity.getSeries() always return 0
    //used for workaround TickLabelEntity no information
    chart.removeAttribute("LEGEND_SEQ");
    chart.removeAttribute("TICK_SEQ");

    try {
        //encode into png image format byte array
        return EncoderUtil.encode(bi, ImageFormat.PNG, true);
    } catch (java.io.IOException ex) {
        throw UiException.Aide.wrap(ex);
    }
}

From source file:org.openfaces.component.chart.impl.helpers.JFreeChartAdapter.java

public JFreeChartAdapter(Plot plot, Chart chart) {
    super(null, JFreeChart.DEFAULT_TITLE_FONT, plot, false);

    final boolean chartBackgroundPaintDefined = chart.getChartView().getBackgroundPaint() != null;
    if (chart.isLegendVisible()) {
        addSubtitle(new LegendAdapter(plot, chart));
    }/*from  ww w . j  a v  a  2  s  .  c  om*/

    if (chart.getTitle() != null) {
        setTitle(new TextTitleAdapter(chart));
    }

    if (chartBackgroundPaintDefined) {
        setBackgroundPaint(chart.getChartView().getBackgroundPaint());
    }

    //TODO: separate style properties

    StyleObjectModel cssChartModel = chart.getStyleObjectModel();
    if (cssChartModel != null) {
        if (!chartBackgroundPaintDefined) {
            setBackgroundPaint(cssChartModel.getBackground());
        }

        StyleBorderModel border = cssChartModel.getBorder();
        if (border != null && !border.isNone()) {
            setBorderPaint(border.getColor());
            setBorderVisible(true);
        } else {
            setBorderVisible(false);
        }
    }

    Float foregroundAlpha = chart.getChartView().getForegroundAlpha();
    if (foregroundAlpha != null) {
        plot.setForegroundAlpha(foregroundAlpha);
    }

    ChartNoDataMessage chartNoDataMessage = chart.getNoDataMessage();
    if (chartNoDataMessage != null && chartNoDataMessage.getText() != null) {
        plot.setNoDataMessage(chartNoDataMessage.getText());

        StyleObjectModel cssMessageModel = chartNoDataMessage.getStyleObjectModel();
        if (cssMessageModel != null) {
            plot.setNoDataMessagePaint(cssMessageModel.getColor());
            plot.setNoDataMessageFont(CSSUtil.getFont(cssMessageModel));
        }
    }
}

From source file:lucee.runtime.tag.Chart.java

private void set3d(Plot plot) {
    if (!show3d)/*from ww  w. ja va  2s.c o m*/
        return;

    plot.setForegroundAlpha(0.6f);

    if (plot instanceof CategoryPlot) {
        plot.setForegroundAlpha(0.8f);
        CategoryPlot cp = (CategoryPlot) plot;
        CategoryItemRenderer renderer = cp.getRenderer();
        if (renderer instanceof BarRenderer3D) {
            BarRenderer3D br3d = (BarRenderer3D) renderer;
            cp.setRenderer(new BarRenderer3DWrap(br3d, xoffset, yoffset));
        }

    } else if (plot instanceof PiePlot3D) {
        PiePlot3D pp3d = (PiePlot3D) plot;
        pp3d.setDepthFactor(0.10);
    }

    //CategoryItemRenderer renderer = plot.getRenderer();

}

From source file:com.appnativa.rare.ui.chart.jfreechart.ChartHandler.java

protected void customizeBasicPlot(final Plot plot, PlotInformation pi) {
    UIColor bg = null;//  ww  w  . j  a v a 2 s .c  om

    if (pi != null) {
        bg = pi.getBackgroundColor();
        plot.setForegroundAlpha(pi.getForegroundAlpha());

        if (pi.getBackgroundImage() != null) {
            UIImage img = pi.getBackgroundImage();

            if (img.isLoaded()) {
                plot.setBackgroundImage(img.getImage());
            } else {
                iImageObserver io = new iImageObserver() {
                    @Override
                    public void imageLoaded(UIImage image) {
                        try {
                            plot.setBackgroundImage(image.getImage());
                        } catch (Exception ignore) {
                        }
                    }
                };

                if (img.isImageLoaded(io)) {
                    plot.setBackgroundImage(img.getImage());
                }
            }
        }

        UIInsets in = pi.getMargin();

        if (in != null) {
            plot.setInsets(new RectangleInsets(in.top, in.left, in.bottom, in.right));
        }
    }

    if (bg == null) {
        bg = plotBackground;
    }

    if (bg != null) {
        plot.setBackgroundPaint(ChartHelper.getPaint(bg));
    }

    plot.setInsets(new RectangleInsets(12, 12, 12, 12));
}

From source file:org.operamasks.faces.render.graph.ChartRenderer.java

protected void setChartStyles(JFreeChart chart, UIChart comp) {
    Plot plot = chart.getPlot();

    RectangleInsets insets = plot.getInsets();
    Double tm = comp.getTopMargin();
    Double lm = comp.getLeftMargin();
    Double bm = comp.getBottomMargin();
    Double rm = comp.getRightMargin();
    if (tm == null || tm < 0)
        tm = insets.getTop();//from   ww  w .  ja  va2 s  . c om
    if (lm == null || lm < 0)
        lm = insets.getLeft();
    if (bm == null || bm < 0)
        bm = insets.getBottom();
    if (rm == null || rm < 0)
        rm = insets.getRight();
    plot.setInsets(new RectangleInsets(tm, lm, bm, rm));

    Paint color = comp.getBackgroundColor();
    if (color != null) {
        chart.setBackgroundPaint(color);
    }

    Image image = loadImage(comp.getBackgroundImage());
    if (image != null) {
        chart.setBackgroundImage(image);
        chart.setBackgroundImageAlignment(getImageAlign(comp.getBackgroundImagePosition()));
        chart.setBackgroundImageAlpha(comp.getBackgroundImageAlpha());
    }

    color = comp.getPlotColor();
    if (color != null) {
        plot.setBackgroundPaint(color);
    }

    Float alpha;
    if ((alpha = comp.getBackgroundAlpha()) != null) {
        plot.setBackgroundAlpha(alpha);
    }
    if ((alpha = comp.getForegroundAlpha()) != null) {
        plot.setForegroundAlpha(alpha);
    }

    image = loadImage(comp.getPlotImage());
    if (image != null) {
        plot.setBackgroundImage(image);
        plot.setBackgroundImageAlignment(getImageAlign(comp.getPlotImagePosition()));
        plot.setBackgroundImageAlpha(comp.getBackgroundImageAlpha());
    }

    Paint[] colorPalette = comp.getColorPalette();
    if (colorPalette != null) {
        plot.setDrawingSupplier(new CustomDrawingSupplier(colorPalette));
    } else {
        plot.setDrawingSupplier(new CustomDrawingSupplier());
    }
}

From source file:net.sf.jasperreports.engine.fill.DefaultChartTheme.java

/**
 *
 *///from w w w . j a v a2 s  . c o  m
protected void configurePlot(Plot plot) {
    plot.setOutlinePaint(null);

    if (getPlot().getOwnBackcolor() == null)// in a way, plot backcolor inheritence from chart is useless
    {
        plot.setBackgroundPaint(null);
    } else {
        plot.setBackgroundPaint(getPlot().getBackcolor());
    }

    float backgroundAlpha = getPlot().getBackgroundAlphaFloat() == null ? 1f
            : getPlot().getBackgroundAlphaFloat();
    float foregroundAlpha = getPlot().getForegroundAlphaFloat() == null ? 1f
            : getPlot().getForegroundAlphaFloat();
    plot.setBackgroundAlpha(backgroundAlpha);
    plot.setForegroundAlpha(foregroundAlpha);

    if (plot instanceof CategoryPlot) {
        // Handle rotation of the category labels.
        CategoryAxis axis = ((CategoryPlot) plot).getDomainAxis();
        // it's OK to use deprecated method here; avoiding it means attempting cast operations  
        double labelRotation = getLabelRotation();
        if (labelRotation == 90) {
            axis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_90);
        } else if (labelRotation == -90) {
            axis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);
        } else if (labelRotation < 0) {
            axis.setCategoryLabelPositions(
                    CategoryLabelPositions.createUpRotationLabelPositions((-labelRotation / 180.0) * Math.PI));
        } else if (labelRotation > 0) {
            axis.setCategoryLabelPositions(
                    CategoryLabelPositions.createDownRotationLabelPositions((labelRotation / 180.0) * Math.PI));
        }
    }

    // Set any color series
    SortedSet<JRSeriesColor> seriesColors = getPlot().getSeriesColors();
    if (seriesColors != null && seriesColors.size() > 0) {
        if (seriesColors.size() == 1) {
            // Add the single color to the beginning of the color cycle, using all the default
            // colors.  To replace the defaults you have to specify at least two colors.
            Paint[] colors = new Paint[DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE.length + 1];
            colors[0] = seriesColors.first().getColor();
            System.arraycopy(DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE, 0, colors, 1,
                    DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE.length);
            plot.setDrawingSupplier(
                    new DefaultDrawingSupplier(colors, DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE));
        } else if (seriesColors.size() > 1) {
            // Set up a custom drawing supplier that cycles through the user's colors
            // instead of the default colors.
            Color[] colors = new Color[seriesColors.size()];
            JRSeriesColor[] colorSequence = new JRSeriesColor[seriesColors.size()];
            seriesColors.toArray(colorSequence);
            for (int i = 0; i < colorSequence.length; i++) {
                colors[i] = colorSequence[i].getColor();
            }

            plot.setDrawingSupplier(
                    new DefaultDrawingSupplier(colors, DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
                            DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE));
        }
    }
}

From source file:net.sf.fspdfs.chartthemes.simple.SimpleChartTheme.java

protected void setPlotBackground(Plot plot, JRChartPlot jrPlot) {
    PlotSettings plotSettings = getPlotSettings();
    Paint backgroundPaint = jrPlot.getOwnBackcolor();
    if (backgroundPaint == null && plotSettings.getBackgroundPaint() != null) {
        backgroundPaint = plotSettings.getBackgroundPaint().getPaint();
    }//from www.  j  a  v a  2 s  . c  o  m
    if (backgroundPaint == null) {
        backgroundPaint = ChartThemesConstants.TRANSPARENT_PAINT;
    }
    plot.setBackgroundPaint(backgroundPaint);

    Float backgroundAlpha = jrPlot.getBackgroundAlphaFloat();
    if (backgroundAlpha == null) {
        backgroundAlpha = plotSettings.getBackgroundAlpha();
    }
    if (backgroundAlpha != null)
        plot.setBackgroundAlpha(backgroundAlpha.floatValue());

    Float foregroundAlpha = jrPlot.getForegroundAlphaFloat();
    if (foregroundAlpha == null) {
        foregroundAlpha = plotSettings.getForegroundAlpha();
    }
    if (foregroundAlpha != null)
        plot.setForegroundAlpha(foregroundAlpha.floatValue());

    Image backgroundImage = plotSettings.getBackgroundImage() == null ? null
            : plotSettings.getBackgroundImage().getImage();
    if (backgroundImage != null) {
        plot.setBackgroundImage(backgroundImage);
        Integer backgroundImageAlignment = plotSettings.getBackgroundImageAlignment();
        if (backgroundImageAlignment != null) {
            plot.setBackgroundImageAlignment(backgroundImageAlignment.intValue());
        }
        Float backgroundImageAlpha = plotSettings.getBackgroundImageAlpha();
        if (backgroundImageAlpha != null) {
            plot.setBackgroundImageAlpha(backgroundImageAlpha.floatValue());
        }
    }
}

From source file:net.sf.jasperreports.chartthemes.simple.SimpleChartTheme.java

protected void setPlotBackground(Plot plot, JRChartPlot jrPlot) {
    PlotSettings plotSettings = getPlotSettings();
    Paint backgroundPaint = jrPlot.getOwnBackcolor();
    if (backgroundPaint == null && plotSettings.getBackgroundPaint() != null) {
        backgroundPaint = plotSettings.getBackgroundPaint().getPaint();
    }/*from   ww w .  ja v  a  2 s .com*/
    if (backgroundPaint == null) {
        backgroundPaint = ChartThemesConstants.TRANSPARENT_PAINT;
    }
    plot.setBackgroundPaint(backgroundPaint);

    Float backgroundAlpha = jrPlot.getBackgroundAlphaFloat();
    if (backgroundAlpha == null) {
        backgroundAlpha = plotSettings.getBackgroundAlpha();
    }
    if (backgroundAlpha != null)
        plot.setBackgroundAlpha(backgroundAlpha);

    Float foregroundAlpha = jrPlot.getForegroundAlphaFloat();
    if (foregroundAlpha == null) {
        foregroundAlpha = plotSettings.getForegroundAlpha();
    }
    if (foregroundAlpha != null)
        plot.setForegroundAlpha(foregroundAlpha);

    Image backgroundImage = plotSettings.getBackgroundImage() == null ? null
            : plotSettings.getBackgroundImage().getImage(getChartContext().getJasperReportsContext());
    if (backgroundImage != null) {
        plot.setBackgroundImage(backgroundImage);
        Integer backgroundImageAlignment = plotSettings.getBackgroundImageAlignment();
        if (backgroundImageAlignment != null) {
            plot.setBackgroundImageAlignment(backgroundImageAlignment);
        }
        Float backgroundImageAlpha = plotSettings.getBackgroundImageAlpha();
        if (backgroundImageAlpha != null) {
            plot.setBackgroundImageAlpha(backgroundImageAlpha);
        }
    }
}