97 lines
3.8 KiB
C#
97 lines
3.8 KiB
C#
using Library14Petrushin.Classes;
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using PdfSharp.Drawing;
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using PdfSharp.Pdf;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Library14Petrushin
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{
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public partial class PdfCirclDiagr : Component
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{
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public void GeneratePdf(
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string fileName,
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string documentTitle,
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string chartTitle,
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LegendPosition legendPosition,
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List<ChartData> chartData)
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{
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// Проверка на заполненность входных данных
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if (string.IsNullOrEmpty(fileName) || string.IsNullOrEmpty(documentTitle) ||
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string.IsNullOrEmpty(chartTitle) || chartData == null || !chartData.Any())
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{
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throw new ArgumentException("Все входные данные должны быть заполнены.");
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}
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// Создание документа
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PdfDocument document = new PdfDocument();
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PdfPage page = document.AddPage();
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XGraphics gfx = XGraphics.FromPdfPage(page);
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XFont font = new XFont("Verdana", 10);
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// Отрисовка заголовка документа
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gfx.DrawString(documentTitle, new XFont("Verdana", 16, XFontStyleEx.Bold), XBrushes.Black, new XRect(0, 0, page.Width, 50), XStringFormats.Center);
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// Отрисовка заголовка диаграммы
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gfx.DrawString(chartTitle, font, XBrushes.Black, new XRect(50, 50, page.Width - 100, 30), XStringFormats.Center);
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// Отрисовка круговой диаграммы
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DrawPieChart(gfx, new XRect(50, 100, 300, 300), chartData, legendPosition);
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// Сохранение документа
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document.Save(fileName);
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}
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private void DrawPieChart(XGraphics gfx, XRect rect, List<ChartData> chartData, LegendPosition legendPosition)
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{
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double total = chartData.Sum(d => d.Value);
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double startAngle = 0;
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int legendX = 0;
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int legendY = 0;
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// Определение расположения легенды
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switch (legendPosition)
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{
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case LegendPosition.Top:
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legendX = (int)rect.X + (int)rect.Width / 2;
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legendY = (int)rect.Y - 50;
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break;
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case LegendPosition.Bottom:
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legendX = (int)rect.X + (int)rect.Width / 2;
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legendY = (int)rect.Y + (int)rect.Height + 20;
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break;
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case LegendPosition.Left:
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legendX = (int)rect.X - 100;
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legendY = (int)rect.Y + (int)rect.Height / 2;
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break;
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case LegendPosition.Right:
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legendX = (int)rect.X + (int)rect.Width + 20;
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legendY = (int)rect.Y + (int)rect.Height / 2;
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break;
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}
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// Отрисовка секторов диаграммы
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foreach (var data in chartData)
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{
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double sweepAngle = 360 * (data.Value / total);
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gfx.DrawPie(GetRandomBrush(), rect, startAngle, sweepAngle);
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startAngle += sweepAngle;
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// Отрисовка легенды
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gfx.DrawString(data.SeriesName, new XFont("Verdana", 8), XBrushes.Black, new XPoint(legendX, legendY));
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legendY += 20;
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}
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}
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private XBrush GetRandomBrush()
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{
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Random random = new Random();
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return new XSolidBrush(XColor.FromArgb(random.Next(256), random.Next(256), random.Next(256)));
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}
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}
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}
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