80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_SPLINESIZEKEYFRAME_H__
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#define __GUI_SPLINESIZEKEYFRAME_H__
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#include <NsCore/Noesis.h>
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#include <NsCore/ReflectionDeclare.h>
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#include <NsGui/SizeKeyFrame.h>
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#include <NsGui/AnimationApi.h>
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namespace Noesis
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{
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class KeySpline;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Animates from the *Size* value of the previous key frame to its own *Value* using splined
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/// interpolation.
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///
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/// This class is used as part of a SizeKeyFrameCollection in conjunction with a
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/// SizeAnimationUsingKeyFrames to animate a Size property value along a set of key frames.
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///
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/// A key frame defines a segment of the SizeAnimationUsingKeyFrames to which it belongs. Each key
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/// frame has a target Value and a KeyTime. The KeyTime specifies the time at which the key frame's
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/// Value should be reached. A key frame animates from the target value of the previous key frame to
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/// its own target value. It starts when the previous key frame ends and ends when its own key time
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/// is reached.
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///
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/// Spline key frames like SplineSizeKeyFrame creates a variable transition between values which is
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/// determined by the KeySpline property. Splined interpolation can be used to achieve more
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/// realistic "real world" timing effects such as acceleration and deceleration.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.media.animation.splinesizekeyframe.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_ANIMATION_API SplineSizeKeyFrame final: public SizeKeyFrame
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{
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public:
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/// Gets or sets the two control points that define animation progress for this key frame
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//@{
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KeySpline* GetKeySpline() const;
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void SetKeySpline(KeySpline* spline);
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//@}
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// Hides Freezable methods for convenience
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//@{
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Ptr<SplineSizeKeyFrame> Clone() const;
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Ptr<SplineSizeKeyFrame> CloneCurrentValue() const;
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//@}
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public:
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/// Dependency properties
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//@{
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static const DependencyProperty* KeySplineProperty;
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//@}
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protected:
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/// From Freezable
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//@{
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Ptr<Freezable> CreateInstanceCore() const override;
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//@}
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/// From KeyFrame
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//@{
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Size InterpolateValueCore(const Size& baseValue, float keyFrameProgress) override;
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//@}
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NS_DECLARE_REFLECTION(SplineSizeKeyFrame, SizeKeyFrame)
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};
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}
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#endif
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