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path: root/Jellyfin.Drawing.Skia/StripCollageBuilder.cs
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Diffstat (limited to 'Jellyfin.Drawing.Skia/StripCollageBuilder.cs')
-rw-r--r--Jellyfin.Drawing.Skia/StripCollageBuilder.cs64
1 files changed, 39 insertions, 25 deletions
diff --git a/Jellyfin.Drawing.Skia/StripCollageBuilder.cs b/Jellyfin.Drawing.Skia/StripCollageBuilder.cs
index 10bb59648..0e94f87f6 100644
--- a/Jellyfin.Drawing.Skia/StripCollageBuilder.cs
+++ b/Jellyfin.Drawing.Skia/StripCollageBuilder.cs
@@ -82,48 +82,62 @@ namespace Jellyfin.Drawing.Skia
/// <param name="outputPath">The path at which to place the resulting image.</param>
/// <param name="width">The desired width of the collage.</param>
/// <param name="height">The desired height of the collage.</param>
- public void BuildThumbCollage(string[] paths, string outputPath, int width, int height)
+ /// <param name="libraryName">The name of the library to draw on the collage.</param>
+ public void BuildThumbCollage(string[] paths, string outputPath, int width, int height, string? libraryName)
{
- using var bitmap = BuildThumbCollageBitmap(paths, width, height);
+ using var bitmap = BuildThumbCollageBitmap(paths, width, height, libraryName);
using var outputStream = new SKFileWStream(outputPath);
using var pixmap = new SKPixmap(new SKImageInfo(width, height), bitmap.GetPixels());
pixmap.Encode(outputStream, GetEncodedFormat(outputPath), 90);
}
- private SKBitmap BuildThumbCollageBitmap(string[] paths, int width, int height)
+ private SKBitmap BuildThumbCollageBitmap(string[] paths, int width, int height, string? libraryName)
{
var bitmap = new SKBitmap(width, height);
using var canvas = new SKCanvas(bitmap);
canvas.Clear(SKColors.Black);
- // number of images used in the thumbnail
- var iCount = 3;
-
- // determine sizes for each image that will composited into the final image
- var iSlice = Convert.ToInt32(width / iCount);
- int iHeight = Convert.ToInt32(height * 1.00);
- int imageIndex = 0;
- for (int i = 0; i < iCount; i++)
+ using var backdrop = GetNextValidImage(paths, 0, out _);
+ if (backdrop == null)
{
- using var currentBitmap = GetNextValidImage(paths, imageIndex, out int newIndex);
- imageIndex = newIndex;
- if (currentBitmap == null)
- {
- continue;
- }
+ return bitmap;
+ }
- // resize to the same aspect as the original
- int iWidth = Math.Abs(iHeight * currentBitmap.Width / currentBitmap.Height);
- using var resizedImage = SkiaEncoder.ResizeImage(currentBitmap, new SKImageInfo(iWidth, iHeight, currentBitmap.ColorType, currentBitmap.AlphaType, currentBitmap.ColorSpace));
+ // resize to the same aspect as the original
+ var backdropHeight = Math.Abs(width * backdrop.Height / backdrop.Width);
+ using var residedBackdrop = SkiaEncoder.ResizeImage(backdrop, new SKImageInfo(width, backdropHeight, backdrop.ColorType, backdrop.AlphaType, backdrop.ColorSpace));
+ // draw the backdrop
+ canvas.DrawImage(residedBackdrop, 0, 0);
- // crop image
- int ix = Math.Abs((iWidth - iSlice) / 2);
- using var subset = resizedImage.Subset(SKRectI.Create(ix, 0, iSlice, iHeight));
- // draw image onto canvas
- canvas.DrawImage(subset ?? resizedImage, iSlice * i, 0);
+ // draw shadow rectangle
+ var paintColor = new SKPaint
+ {
+ Color = SKColors.Black.WithAlpha(0x78),
+ Style = SKPaintStyle.Fill
+ };
+ canvas.DrawRect(0, 0, width, height, paintColor);
+
+ // draw library name
+ var textPaint = new SKPaint
+ {
+ Color = SKColors.White,
+ Style = SKPaintStyle.Fill,
+ TextSize = 112,
+ TextAlign = SKTextAlign.Center,
+ Typeface = SKTypeface.FromFamilyName("sans-serif", SKFontStyleWeight.Bold, SKFontStyleWidth.Normal, SKFontStyleSlant.Upright),
+ IsAntialias = true
+ };
+
+ // scale down text to 90% of the width if text is larger than 95% of the width
+ var textWidth = textPaint.MeasureText(libraryName);
+ if (textWidth > width * 0.95)
+ {
+ textPaint.TextSize = 0.9f * width * textPaint.TextSize / textWidth;
}
+ canvas.DrawText(libraryName, width / 2f, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), textPaint);
+
return bitmap;
}