Diplomarbeit-Absolventenverein/oqtane.framework
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add transparency support on image resizing

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This commit is contained in:
sbwalker
2023-08-04 16:07:37 -04:00
parent 92a4a1b210
commit f7bd03d051
4 changed files with 20 additions and 7 deletions
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21
Oqtane.Server/Controllers/FileController.cs
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@ -572,7 +572,7 @@ namespace Oqtane.Controllers
// validation
if (!Enum.TryParse(mode, true, out ResizeMode _)) mode = "crop";
if (!Enum.TryParse(position, true, out AnchorPositionMode _)) position = "center";
if (!Color.TryParseHex("#" + background, out _)) background = "000000";
if (!Color.TryParseHex("#" + background, out _)) background = "transparent";
if (!int.TryParse(rotate, out _)) rotate = "0";
rotate = (int.Parse(rotate) < 0 || int.Parse(rotate) > 360) ? "0" : rotate;
if (!bool.TryParse(recreate, out _)) recreate = "false";
@ -644,10 +644,23 @@ namespace Oqtane.Controllers
Mode = resizemode,
Position = anchorpositionmode,
Size = new Size(width, height)
})
.BackgroundColor(Color.ParseHex("#" + background)));
}));
image.Save(imagepath, new PngEncoder());
if (background != "transparent")
{
image.Mutate(x => x
.BackgroundColor(Color.ParseHex("#" + background)));
}
PngEncoder encoder = new PngEncoder
{
ColorType = PngColorType.RgbWithAlpha,
TransparentColorMode = PngTransparentColorMode.Preserve,
BitDepth = PngBitDepth.Bit8,
CompressionLevel = PngCompressionLevel.BestSpeed
};
image.Save(imagepath, encoder);
}
}
}