89 lines
2.8 KiB
C#
89 lines
2.8 KiB
C#
using MigraDoc.DocumentObjectModel;
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using MigraDoc.DocumentObjectModel.Shapes.Charts;
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using MigraDoc.Rendering;
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namespace LDBproject.Reports;
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internal class PdfBuilder
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{
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private readonly string _filePath;
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private readonly Document _document;
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public PdfBuilder(string filePath)
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{
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if (string.IsNullOrWhiteSpace(filePath))
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{
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throw new ArgumentNullException(nameof(filePath));
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}
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if (File.Exists(filePath))
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{
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File.Delete(filePath);
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}
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_filePath = filePath;
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_document = new Document();
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DefineStyles();
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}
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public PdfBuilder AddHeader(string header)
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{
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_document.AddSection().AddParagraph(header, "HeaderStyle"); // used the defined style
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return this;
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// _document.AddSection().AddParagraph(header, "NormalBold");
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// return this;
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}
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public PdfBuilder AddPieChart(string title, List<(string Caption, double
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Value)> data)
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{
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if (data == null || data.Count == 0)
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{
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return this;
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}
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var chart = new Chart(ChartType.Pie2D);
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var series = chart.SeriesCollection.AddSeries();
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series.Add(data.Select(x => x.Value).ToArray());
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var xseries = chart.XValues.AddXSeries();
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xseries.Add(data.Select(x => x.Caption).ToArray());
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chart.DataLabel.Type = DataLabelType.Percent;
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chart.DataLabel.Position = DataLabelPosition.OutsideEnd;
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chart.Width = Unit.FromCentimeter(16);
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chart.Height = Unit.FromCentimeter(12);
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chart.TopArea.AddParagraph(title);
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chart.XAxis.MajorTickMark = TickMarkType.Outside;
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chart.YAxis.MajorTickMark = TickMarkType.Outside;
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chart.YAxis.HasMajorGridlines = true;
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chart.PlotArea.LineFormat.Width = 1;
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chart.PlotArea.LineFormat.Visible = true;
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chart.TopArea.AddLegend();
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_document.LastSection.Add(chart);
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return this;
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}
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public void Build()
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{
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var renderer = new PdfDocumentRenderer(true)
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{
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Document = _document
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};
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renderer.RenderDocument();
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renderer.PdfDocument.Save(_filePath);
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}
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private void DefineStyles()
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{
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// defined the HeaderStyle
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string[] fallbackFonts = { "Arial", "Times New Roman", "Calibri" }; //List of fonts to try
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string fontName = "Times New Roman";
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foreach (var font in fallbackFonts)
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{
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if (System.Drawing.FontFamily.Families.Any(f => f.Name == font))
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{
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fontName = font;
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break;
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}
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}
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var headerStyle = _document.Styles.AddStyle("HeaderStyle", "Normal");
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headerStyle.Font.Name = fontName;
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headerStyle.Font.Size = 14;
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headerStyle.Font.Bold = true;
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}
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}
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