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Add Resize to fill box alternative to image endpoints

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This commit is contained in:
Odd Stråbø
2021-03-17 00:15:09 +01:00
parent 240e67d485
commit 383aa4e4d9
4 changed files with 161 additions and 17 deletions
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48
MediaBrowser.Model/Drawing/DrawingUtils.cs
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@@ -57,6 +57,54 @@ namespace MediaBrowser.Model.Drawing
return new ImageDimensions(newWidth, newHeight);
}
/// <summary>
/// Resizes to fill box.
/// Returns original size if both width and height are null or zero.
/// </summary>
/// <param name="size">The original size object.</param>
/// <param name="fillWidth">A new fixed width, if desired.</param>
/// <param name="fillHeight">A new fixed height, if desired.</param>
/// <returns>A new size object or size.</returns>
public static ImageDimensions ResizeFill(
ImageDimensions size,
int? fillWidth,
int? fillHeight)
{
// Return original size if input is invalid.
if (
(fillWidth == null && fillHeight == null)
|| (fillWidth == 0 || fillHeight == 0))
{
return size;
}
if (fillWidth == null || fillWidth == 0)
{
fillWidth = 1;
}
if (fillHeight == null || fillHeight == 0)
{
fillHeight = 1;
}
double widthRatio = (double)size.Width / (double)fillWidth;
double heightRatio = (double)size.Height / (double)fillHeight!;
// min()
double scaleRatio = widthRatio > heightRatio ? heightRatio : widthRatio;
// Clamp to current size.
if (scaleRatio < 1)
{
return size;
}
int newWidth = Convert.ToInt32(Math.Ceiling((double)size.Width / scaleRatio));
int newHeight = Convert.ToInt32(Math.Ceiling((double)size.Height / scaleRatio));
return new ImageDimensions(newWidth, newHeight);
}
/// <summary>
/// Gets the new width.
/// </summary>