//
// Contact:
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//
// Copyright 2007 Novell, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using Mono;
namespace System.Windows.Media.Animation{
public abstract partial class EasingFunctionBase : DependencyObject, IEasingFunction
{
private new void Initialize ()
{
callback = EasingFunctionWrapper.CreateSafeEasingFunction (new EasingFunctionCallback (Ease));
NativeMethods.easing_function_base_set_easing_function (native, callback);
}
public double Ease (double normalizedTime)
{
switch (EasingMode) {
case EasingMode.EaseIn:
return EaseInCore (normalizedTime);
case EasingMode.EaseOut:
return 1.0 - EaseInCore (1 - normalizedTime);
case EasingMode.EaseInOut:
return (normalizedTime <= 0.5
? EaseInCore (normalizedTime * 2) * 0.5
: 1.0 - EaseInCore ((1 - normalizedTime) * 2) * 0.5);
}
// XXX
throw new Exception();
}
protected abstract double EaseInCore (double normalizedTime);
EasingFunctionCallback callback;
}
}
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