public static Action <Foo> CompileUntyped(TransformationBase transformation)
{
var transformType = transformation.GetType();
var genericType = transformType.GetGenericArguments().First();
var fooParam = Expression.Parameter(typeof(Foo), "f");
var valueGetter = typeof(Foo).GetProperty("Value").GetGetMethod();
var valueSetter = typeof(Foo).GetProperty("Value").GetSetMethod();
var transformFuncMember = transformType.GetProperty("Transform").GetGetMethod();
//Equivalent to f => f.Value = transformation.Transform((T)f.Value)
//Where T is the generic type parameter of the Transformation, and f is of type Foo
var expression = Expression.Lambda <Action <Foo> >(
Expression.Call(
fooParam,
valueSetter,
Expression.Invoke(
Expression.Property(
Expression.Constant(transformation, transformType),
transformFuncMember
),
Expression.Convert(
Expression.Property(fooParam, valueGetter),
genericType
)
)
), fooParam
);
return(expression.Compile());
}
public void Chain_WithTwoNormalTransformations_CreatesChainedTransformation()
{
var first = new TransformationBase();
var second = new TransformationBase();
var chained = first.Chain(second);
Assert.That(chained is ChainedTransformation);
}
public static Action <Foo> Compile(TransformationBase transformation)
{
return(new Action <Foo>(f =>
{
dynamic d = f.Value;
dynamic t = transformation;
f.Value = t.Transform(d);
}));
}
public static Action <Foo> CompileReflection(TransformationBase transformation)
{
var f = transformation
.GetType()
.GetProperty("Transform")
.GetGetMethod()
.Invoke(transformation, null) as Delegate;
return(foo => foo.Value = f.DynamicInvoke(foo.Value));
}
public void ToCloudinary_WithTwoTransformations_CombinesThem()
{
var first = new Transformation(20, 40) { Angle = new Angle(40)};
var second = new TransformationBase
{
Effect = "sepia"
};
var chained = new ChainedTransformation(first, second);
Assert.AreEqual("w_20,h_40,a_40/e_sepia", chained.ToCloudinary());
}
public void Chain_WithSeconArgumentChained_ReUsesExistsing()
{
var first = new TransformationBase();
var second = new TransformationBase();
var chained = new ChainedTransformation(first, second);
var third = new TransformationBase();
var combined = third.Chain(chained);
Assert.That(combined == chained);
}
public void Chain_OnChainedTransformation_ReUsesExisting()
{
var first = new TransformationBase();
var second = new TransformationBase();
ChainedTransformation chained = new ChainedTransformation(first, second);
var third = new TransformationBase();
var combined = chained.Chain(third);
Assert.That(combined == chained);
Assert.That(chained.InnerTransformations.Count() == 3);
}
public void GetFormat_WithTwoTransformations_ReturnsFirstFormat()
{
var first = new TransformationBase()
{
Format = "gif"
};
var second = new Transformation(20, 30)
{
Format = "png"
};
var chained = new ChainedTransformation(first, second);
Assert.That(chained.GetFormat() == "gif");
}
public void CloudinaryImage_WithChainedTransformation_Chains()
{
var first = new Transformation(35, 99)
{
Radius = 4,
Format = "png"
};
var second = new TransformationBase()
{
Angle = new Angle(45)
};
var chained = new ChainedTransformation(first, second);
string url = Url.CloudinaryImage("chained", chained).ToString();
Assert.AreEqual("http://res.cloudinary.com/test/image/upload/w_35,h_99,r_4/a_45/chained.png", url);
}
public static void LoadImageAsync(
this MvxCachedImageView imageView,
string bundleResourceName,
string url,
TransformationBase transformationBase = null)
{
if (string.IsNullOrEmpty(url))
{
imageView.SetImageDrawable(null);
if (!string.IsNullOrEmpty(bundleResourceName))
{
var loadTask = ImageService.Instance
.LoadCompiledResource(bundleResourceName);
if (transformationBase != null)
{
loadTask = loadTask.Transform(transformationBase);
}
loadTask.IntoAsync(imageView);
}
return;
}
var expr = ImageService.Instance.LoadUrl(url);
if (!string.IsNullOrEmpty(bundleResourceName))
{
expr = expr.LoadingPlaceholder(bundleResourceName, ImageSource.CompiledResource)
.ErrorPlaceholder(bundleResourceName, ImageSource.CompiledResource);
}
if (transformationBase != null)
{
expr = expr.Transform(transformationBase);
}
expr.IntoAsync(imageView);
}
public void InitChildren(IEnumerable <object> elements)
{
Transform = elements.FirstOrDefault(o => o is TransformationBase) as TransformationBase;
}
