// Initialize defaults
public ArtboardXamarin()
{
artboardXamarinWidth = 80.000000;
artboardXamarinHeight = 80.000000;
artboardXamarinFillMode = ArtboardXamarinFillMode.ArtboardXamarinFit;
Active = true;
}
//
// ArtboardXamarin
//
public void DrawArtboardXamarin(CGRect bounds, ArtboardXamarinFillMode fillMode)
{
CGContext context;
// Get CGContext instance
context = UIGraphics.GetCurrentContext();
// Affine Transform
baseTransform = CoreGraphics.CGAffineTransform.CGAffineTransformInvert(context.GetUserSpaceToDeviceSpaceTransform());
// Save initial context state
context.SaveState();
// Initialize and set new artboard size (scaled)
newArtboardSize = GetNewArtboardSize(fillMode, new CGRect(0.0, 0.0, 80.000000, 80.000000), new CGRect(bounds.Left, bounds.Top, bounds.Width, bounds.Height));
context.TranslateCTM(newArtboardSize.X, newArtboardSize.Y);
resizedScale = new CGSize(newArtboardSize.Width / 80.000000, newArtboardSize.Height / 80.000000);
context.ScaleCTM(resizedScale.Width, resizedScale.Height);
// Drawing procedures
DrawShapeObjectLogo(context);
// Restore initial context state
context.RestoreState();
}
//
// Resizing logic for ArtboardXamarin
//
private CGRect GetNewArtboardSize(ArtboardXamarinFillMode fillMode, CGRect sourceRect, CGRect targetRect)
{
CGSize scales = new CGSize(0, 0);
CGSize sizeZero = new CGSize(0, 0);
CGRect rectZero = new CGRect(0, 0, 0, 0);
if (sourceRect == targetRect || targetRect == rectZero)
{
return(sourceRect);
}
else
{
scales = sizeZero;
scales.Width = (nfloat)Math.Abs(targetRect.Width / sourceRect.Width);
scales.Height = (nfloat)Math.Abs(targetRect.Height / sourceRect.Height);
if (fillMode == ArtboardXamarinFillMode.ArtboardXamarinFit)
{
scales.Width = (nfloat)Math.Min(scales.Width, scales.Height);
scales.Height = (nfloat)scales.Width;
}
else if (fillMode == ArtboardXamarinFillMode.ArtboardXamarinFill)
{
scales.Width = (nfloat)Math.Max(scales.Width, scales.Height);
scales.Height = scales.Width;
}
else if (fillMode == ArtboardXamarinFillMode.ArtboardXamarinOriginal)
{
scales.Width = 1;
scales.Height = 1;
}
if (sourceRect.Width < 0)
{
sourceRect.X = sourceRect.X + sourceRect.Width;
sourceRect.Width = (nfloat)Math.Abs(sourceRect.Width);
}
if (sourceRect.Height < 0)
{
sourceRect.Y = sourceRect.Y + sourceRect.Height;
sourceRect.Height = (nfloat)Math.Abs(sourceRect.Height);
}
nfloat newWidth = sourceRect.Width * scales.Width;
nfloat newHeight = sourceRect.Height * scales.Height;
nfloat newLeft = targetRect.X + (targetRect.Width - newWidth) / 2;
nfloat newTop = targetRect.Y + (targetRect.Height - newHeight) / 2;
return(new CGRect(newLeft, newTop, newWidth, newHeight));
}
}
