#define __DALI_ALPHA_FUNCTION_H__
/*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
typedef float (*AlphaFunctionPrototype)(float progress); ///< Prototype of an alpha function @SINCE_1_0.0
- /*
+ /**
* @brief Alpha functions are used in animations to specify the rate of change of the animation parameter over time.
+ *
* Understanding an animation as a parametric function over time, the alpha function is applied to the parameter of
* the animation before computing the final animation value.
+ * @SINCE_1_0.0
*/
-class DALI_IMPORT_API AlphaFunction
+class DALI_CORE_API AlphaFunction
{
public:
/**
- * @brief Built-in alpha functions
+ * @brief Enumeration for built-in alpha functions.
* @SINCE_1_0.0
*/
enum BuiltinFunction
};
/**
- * @brief All possible functioning modes for the alpha function
+ * @brief Enumeration for all possible functioning modes for the alpha function.
* @SINCE_1_0.0
*/
enum Mode
{
- BUILTIN_FUNCTION, //< The user has specified a built-in function
- CUSTOM_FUNCTION, //< The user has provided a custom function
- BEZIER //< The user has provided the control points of a bezier curve
+ BUILTIN_FUNCTION, ///< The user has specified a built-in function @SINCE_1_0.0
+ CUSTOM_FUNCTION, ///< The user has provided a custom function @SINCE_1_0.0
+ BEZIER ///< The user has provided the control points of a bezier curve @SINCE_1_0.0
};
/**
* @brief Default constructor.
- * Creates an alpha function object with the default built-in alpha function
+ * Creates an alpha function object with the default built-in alpha function.
* @SINCE_1_0.0
* @return The alpha function
*/
/**
* @brief Constructor.
* Creates an alpha function object with the built-in alpha function passed as a parameter
- * to the constructor
+ * to the constructor.
* @SINCE_1_0.0
* @param[in] function One of the built-in alpha functions
* @return The alpha function
/**
* @brief Constructor.
- * Creates an alpha function object using a pointer to an alpha function passed as a paramter
- * to the constructor
+ * Creates an alpha function object using a pointer to an alpha function passed as a parameter
+ * to the constructor.
* @SINCE_1_0.0
* @param[in] function A pointer to an alpha function
* @return The alpha function
/**
* @brief Constructor.
+ *
* Creates a bezier alpha function. The bezier will have the first point at (0,0) and
* the end point at (1,1).
* @SINCE_1_0.0
AlphaFunction( const Dali::Vector2& controlPoint0, const Dali::Vector2& controlPoint1 );
/**
- * @brief Return the control points of the alpha function
+ * @brief Returns the control points of the alpha function.
* @SINCE_1_0.0
- * @return Vector4 containing the two control points of the curve.
+ * @return Vector4 containing the two control points of the curve
* (xy for the first point and zw for the second)
*/
Vector4 GetBezierControlPoints() const;
/**
- * @brief Returns the pointer to the custom function
+ * @brief Returns the pointer to the custom function.
* @SINCE_1_0.0
- * @return A pointer to a custom alpha function or 0 if not defined
+ * @return A pointer to a custom alpha function, or @c 0 if not defined
*/
AlphaFunctionPrototype GetCustomFunction() const;
/**
- * @brief Returns the built0in function used by the alpha function
+ * @brief Returns the built-in function used by the alpha function.
* @SINCE_1_0.0
* @return One of the built-in alpha functions. In case no built-in function
- * has been specified, it will return AlphaFunction::DEfAULT
+ * has been specified, it will return AlphaFunction::DEFAULT
*/
BuiltinFunction GetBuiltinFunction() const;
Vector4 mBezierControlPoints; //< Control points for the bezier alpha function
AlphaFunctionPrototype mCustom; //< Pointer to an alpha function
- BuiltinFunction mBuiltin : Log<COUNT>::value+1; //< Enum indicating the built-in alpha function
- Mode mMode : 2; //< Enum indicating the functioning mode of the AlphaFunction
+ BuiltinFunction mBuiltin : Log<COUNT>::value+2; //< Enum indicating the built-in alpha function
+ Mode mMode : 3; //< Enum indicating the functioning mode of the AlphaFunction
};
/**