提示框

使用提示框

新方法 getShowLabelAsDataCallout() 和 setShowLabelAsDataCallout() 已被添加至 DataLabelFormat 类和 IDataLabelFormat 接口。这些方法决定指定图表的数据标签是显示为数据提示框还是数据标签。

Presentation pres = new Presentation();
try {
    IChart chart = pres.getSlides().get_Item(0).getShapes().addChart(ChartType.Pie, 50, 50, 500, 400);
    
    chart.getChartData().getSeries().get_Item(0).getLabels().getDefaultDataLabelFormat().setShowValue(true);
    chart.getChartData().getSeries().get_Item(0).getLabels().getDefaultDataLabelFormat().setShowLabelAsDataCallout(true);
    chart.getChartData().getSeries().get_Item(0).getLabels().get_Item(2).getDataLabelFormat().setShowLabelAsDataCallout(false);
    
    pres.save("DisplayCharts.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

为甜甜圈图设置提示框

Aspose.Slides for Android via Java 提供了为甜甜圈图设置系列数据标签提示框形状的支持。以下示例给出。

Presentation pres = new Presentation();
try {
    ISlide slide = pres.getSlides().get_Item(0);
    IChart chart = slide.getShapes().addChart(ChartType.Doughnut, 10, 10, 500, 500, false);
    IChartDataWorkbook workBook = chart.getChartData().getChartDataWorkbook();
    chart.getChartData().getSeries().clear();
    chart.getChartData().getCategories().clear();
    chart.setLegend(false);
    int seriesIndex = 0;
    while (seriesIndex < 15)
    {
        IChartSeries series = chart.getChartData().getSeries().add(workBook.getCell(0, 0, seriesIndex + 1, "系列 " + seriesIndex), chart.getType());
        series.setExplosion(0);
        series.getParentSeriesGroup().setDoughnutHoleSize((byte)20);
        series.getParentSeriesGroup().setFirstSliceAngle(351);
        seriesIndex++;
    }
    int categoryIndex = 0;
    while (categoryIndex < 15)
    {
        chart.getChartData().getCategories().add(workBook.getCell(0, categoryIndex + 1, 0, "类别 " + categoryIndex));
        int i = 0;
        while (i < chart.getChartData().getSeries().size())
        {
            IChartSeries iCS = chart.getChartData().getSeries().get_Item(i);
            IChartDataPoint dataPoint = iCS.getDataPoints().addDataPointForDoughnutSeries(workBook.getCell(0, categoryIndex + 1, i + 1, 1));
            dataPoint.getFormat().getFill().setFillType(FillType.Solid);
            dataPoint.getFormat().getLine().getFillFormat().setFillType(FillType.Solid);
            dataPoint.getFormat().getLine().getFillFormat().getSolidFillColor().setColor(java.awt.Color.WHITE);
            dataPoint.getFormat().getLine().setWidth(1);
            dataPoint.getFormat().getLine().setStyle(LineStyle.Single);
            dataPoint.getFormat().getLine().setDashStyle(LineDashStyle.Solid);
            if (i == chart.getChartData().getSeries().size() - 1)
            {
                IDataLabel lbl = dataPoint.getLabel();
                lbl.getTextFormat().getTextBlockFormat().setAutofitType(TextAutofitType.Shape);
                lbl.getDataLabelFormat().getTextFormat().getPortionFormat().setFontBold(NullableBool.True);
                lbl.getDataLabelFormat().getTextFormat().getPortionFormat().setLatinFont(new FontData("DINPro-Bold"));
                lbl.getDataLabelFormat().getTextFormat().getPortionFormat().setFontHeight(12);
                lbl.getDataLabelFormat().getTextFormat().getPortionFormat().getFillFormat().setFillType(FillType.Solid);
                lbl.getDataLabelFormat().getTextFormat().getPortionFormat().getFillFormat().getSolidFillColor().setColor(java.awt.Color.LIGHT_GRAY);
                lbl.getDataLabelFormat().getFormat().getLine().getFillFormat().getSolidFillColor().setColor(java.awt.Color.WHITE);
                lbl.getDataLabelFormat().setShowValue(false);
                lbl.getDataLabelFormat().setShowCategoryName(true);
                lbl.getDataLabelFormat().setShowSeriesName(false);
                lbl.getDataLabelFormat().setShowLeaderLines(true);
                lbl.getDataLabelFormat().setShowLabelAsDataCallout(false);
                chart.validateChartLayout();
                lbl.setX((float) lbl.getX()+ (float)0.5);
                lbl.setY((float)lbl.getY()+ (float)0.5);
            }
            i++;
        }
        categoryIndex++;
    }
    pres.save("chart.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}