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feat: add JPEG support to /api/chart/v2 (?format=jpg|jpeg)

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SmartRootsSrl
2026-05-27 18:06:34 +02:00
parent 9ac3610064
commit f9a7d7a8d2
2 changed files with 17 additions and 6 deletions
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15
CertReports.Syncfusion/Controllers/ChartController.cs
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@@ -112,17 +112,26 @@ public class ChartController : ControllerBase
}); });
} }
byte[] pngBytes = SkiaChartRendererV2.RenderToPng(chartData, width, height); bool isJpeg = format.Equals("jpg", StringComparison.OrdinalIgnoreCase)
|| format.Equals("jpeg", StringComparison.OrdinalIgnoreCase);
byte[] imgBytes = SkiaChartRendererV2.RenderToPng(chartData, width, height, jpeg: isJpeg);
if (format.Equals("pdf", StringComparison.OrdinalIgnoreCase)) if (format.Equals("pdf", StringComparison.OrdinalIgnoreCase))
{ {
byte[] pdfBytes = WrapPngInPdf(pngBytes); byte[] pdfBytes = WrapPngInPdf(imgBytes);
Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.pdf"); Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.pdf");
return File(pdfBytes, "application/pdf"); return File(pdfBytes, "application/pdf");
} }
if (isJpeg)
{
Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.jpg");
return File(imgBytes, "image/jpeg");
}
Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.png"); Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.png");
return File(pngBytes, "image/png"); return File(imgBytes, "image/png");
} }
catch (Exception ex) catch (Exception ex)
{ {

8
CertReports.Syncfusion/Services/Implementations/SkiaChartRendererV2.cs
View File

@@ -42,7 +42,7 @@ public static class SkiaChartRendererV2
// Entry point // Entry point
// ═══════════════════════════════════════════════════════════════════ // ═══════════════════════════════════════════════════════════════════
public static byte[] RenderToPng(ChartDataV2 data, int width = 1100, int height = 700) public static byte[] RenderToPng(ChartDataV2 data, int width = 1100, int height = 700, bool jpeg = false)
{ {
using var surface = SKSurface.Create(new SKImageInfo(width, height)); using var surface = SKSurface.Create(new SKImageInfo(width, height));
var canvas = surface.Canvas; var canvas = surface.Canvas;
@@ -164,8 +164,10 @@ public static class SkiaChartRendererV2
DrawLegendBottom(canvas, plotArea, allLegend, width); DrawLegendBottom(canvas, plotArea, allLegend, width);
using var image = surface.Snapshot(); using var image = surface.Snapshot();
using var pngData = image.Encode(SKEncodedImageFormat.Png, 95); using var imgData = jpeg
return pngData.ToArray(); ? image.Encode(SKEncodedImageFormat.Jpeg, 90)
: image.Encode(SKEncodedImageFormat.Png, 95);
return imgData.ToArray();
} }
// ═══════════════════════════════════════════════════════════════════ // ═══════════════════════════════════════════════════════════════════