public static SRectF Scale(this SRectF rect, float scale)
{
return(new SRectF(
rect.X - rect.W * (scale - 1f) * 0.5f,
rect.Y - rect.H * (scale - 1f) * 0.5f,
rect.W * scale,
rect.H * scale,
rect.Z));
}
public static SRectF Scale(this SRectF rect, float scale)
{
return(new SRectF(
rect.X - rect.W * (scale - 1f),
rect.Y - rect.H * (scale - 1f),
rect.W + 2 * rect.W * (scale - 1f),
rect.H + 2 * rect.H * (scale - 1f),
rect.Z));
}
public static bool IsInBounds(SRectF bounds, int x, int y)
{
return(((float)x).IsInRange(bounds.X, bounds.X + bounds.W) && ((float)y).IsInRange(bounds.Y, bounds.Y + bounds.H));
}
public static bool IsInBounds(SRectF bounds, SMouseEvent mouseEvent)
{
return(IsInBounds(bounds, mouseEvent.X, mouseEvent.Y));
}
/// <summary>
/// Places a rect within the bounds maintaining the aspectRatio and using the given aspect
/// </summary>
/// <param name="bounds">Bounds to fit the rect in</param>
/// <param name="aspectRatio">The original aspectRatio of the rect/image/...</param>
/// <param name="aspect">
/// Crop: No empty space in bounds but has overhanging parts (same on both sides)<br />
/// LetterBox: Fit the long side possibly leaving some space on the other (rect will be centered)<br />
/// StretcH: Just fit the rect in the bounds (rect=bounds)
/// </param>
public static SRectF FitInBounds(SRectF bounds, float aspectRatio, EAspect aspect)
{
if (aspect == EAspect.Stretch)
{
return(bounds);
}
float boundsAspectRatio = bounds.W / bounds.H;
float scaledWidth, scaledHeight;
switch (aspect)
{
case EAspect.Automatic:
case EAspect.Crop:
if (boundsAspectRatio >= aspectRatio)
{
scaledWidth = bounds.W;
scaledHeight = bounds.W / aspectRatio;
}
else
{
scaledHeight = bounds.H;
scaledWidth = bounds.H * aspectRatio;
}
break;
case EAspect.Zoom1:
if (boundsAspectRatio >= aspectRatio)
{
scaledWidth = bounds.W * 1.33f;
scaledHeight = bounds.W * 1.33f / aspectRatio;
}
else
{
scaledHeight = bounds.H / 1.33f;
scaledWidth = bounds.H / 1.33f * aspectRatio;
}
break;
case EAspect.Zoom2:
if (boundsAspectRatio >= aspectRatio)
{
scaledWidth = bounds.W * 1.17f;
scaledHeight = bounds.W * 1.17f / aspectRatio;
}
else
{
scaledHeight = bounds.H / 1.17f;
scaledWidth = bounds.H / 1.17f * aspectRatio;
}
break;
case EAspect.LetterBox:
if (boundsAspectRatio < aspectRatio)
{
scaledWidth = bounds.W;
scaledHeight = bounds.W / aspectRatio;
}
else
{
scaledHeight = bounds.H;
scaledWidth = bounds.H * aspectRatio;
}
break;
case EAspect.PillarBox:
scaledWidth = bounds.W * 0.77f;
scaledHeight = bounds.W / aspectRatio;
break;
default:
return(bounds);
}
float left = (bounds.W - scaledWidth) / 2 + bounds.X;
float top = (bounds.H - scaledHeight) / 2 + bounds.Y;
return(new SRectF(left, top, scaledWidth, scaledHeight, bounds.Z));
}
