CCustomInterpolator Class
Implements a basic interpolator.
Syntax
class CCustomInterpolator;
Members
Public Constructors
| Name | Description |
|---|---|
| CCustomInterpolator::CCustomInterpolator | Overloaded. Constructs a custom interpolator object and initializes duration and velocity to specified values. |
Public Methods
| Name | Description |
|---|---|
| CCustomInterpolator::GetDependencies | Gets the interpolator's dependencies. |
| CCustomInterpolator::GetDuration | Gets the interpolator's duration. |
| CCustomInterpolator::GetFinalValue | Gets the final value to which the interpolator leads. |
| CCustomInterpolator::Init | Initializes duration and final value. |
| CCustomInterpolator::InterpolateValue | Interpolates the value at a given offset. |
| CCustomInterpolator::InterpolateVelocity | Interpolates the velocity at a given offset |
| CCustomInterpolator::SetDuration | Sets the interpolator's duration. |
| CCustomInterpolator::SetInitialValueAndVelocity | Sets the interpolator's initial value and velocity. |
Protected Data Members
| Name | Description |
|---|---|
| CCustomInterpolator::m_currentValue | The interpolated value. |
| CCustomInterpolator::m_currentVelocity | The interpolated velocity. |
| CCustomInterpolator::m_duration | The duration of the transition. |
| CCustomInterpolator::m_finalValue | The final value of a variable at the end of the transition. |
| CCustomInterpolator::m_initialValue | The value of the variable at the start of the transition. |
| CCustomInterpolator::m_initialVelocity | The velocity of the variable at the start of the transition. |
Remarks
Derive a class from CCustomInterpolator and override all necessary methods in order to implement a custom interpolation algorithm. A pointer to this class should be passed as a parameter to CCustomTransition.
Inheritance Hierarchy
CCustomInterpolator
Requirements
Header: afxanimationcontroller.h
CCustomInterpolator::CCustomInterpolator
Constructs a custom interpolator object and sets all values to default 0.
CCustomInterpolator();
CCustomInterpolator(
UI_ANIMATION_SECONDS duration,
DOUBLE finalValue);
Parameters
duration
The duration of the transition.
finalValue
Remarks
Use CCustomInterpolator::Init to initialize duration and final value later in the code.
CCustomInterpolator::GetDependencies
Gets the interpolator's dependencies.
virtual BOOL GetDependencies(
UI_ANIMATION_DEPENDENCIES* initialValueDependencies,
UI_ANIMATION_DEPENDENCIES* initialVelocityDependencies,
UI_ANIMATION_DEPENDENCIES* durationDependencies);
Parameters
initialValueDependencies
Output. Aspects of the interpolator that depend on the initial value passed to SetInitialValueAndVelocity.
initialVelocityDependencies
Output. Aspects of the interpolator that depend on the initial velocity passed to SetInitialValueAndVelocity.
durationDependencies
Output. Aspects of the interpolator that depend on the duration passed to SetDuration.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::GetDuration
Gets the interpolator's duration.
virtual BOOL GetDuration(UI_ANIMATION_SECONDS* duration);
Parameters
duration
Output. The duration of the transition, in seconds.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::GetFinalValue
Gets the final value to which the interpolator leads.
virtual BOOL GetFinalValue(DOUBLE* value);
Parameters
value
Output. The final value of a variable at the end of the transition.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::Init
Initializes duration and final value.
void Init(
UI_ANIMATION_SECONDS duration,
DOUBLE finalValue);
Parameters
duration
The duration of the transition.
finalValue
The final value of a variable at the end of the transition.
CCustomInterpolator::InterpolateValue
Interpolates the value at a given offset.
virtual BOOL InterpolateValue(
UI_ANIMATION_SECONDS */,
DOUBLE* value);
Parameters
value
Output. The interpolated value.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::InterpolateVelocity
Interpolates the velocity at a given offset
virtual BOOL InterpolateVelocity(
UI_ANIMATION_SECONDS */,
DOUBLE* velocity);
Parameters
velocity
Output. The velocity of the variable at the offset.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::m_currentValue
The interpolated value.
DOUBLE m_currentValue;
CCustomInterpolator::m_currentVelocity
The interpolated velocity.
DOUBLE m_currentVelocity;
CCustomInterpolator::m_duration
The duration of the transition.
UI_ANIMATION_SECONDS m_duration;
CCustomInterpolator::m_finalValue
The final value of a variable at the end of the transition.
DOUBLE m_finalValue;
CCustomInterpolator::m_initialValue
The value of the variable at the start of the transition.
DOUBLE m_initialValue;
CCustomInterpolator::m_initialVelocity
The velocity of the variable at the start of the transition.
DOUBLE m_initialVelocity;
CCustomInterpolator::SetDuration
Sets the interpolator's duration.
virtual BOOL SetDuration(UI_ANIMATION_SECONDS duration);
Parameters
duration
The duration of the transition.
Return Value
Basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.
CCustomInterpolator::SetInitialValueAndVelocity
Sets the interpolator's initial value and velocity.
virtual BOOL SetInitialValueAndVelocity(
DOUBLE initialValue,
DOUBLE initialVelocity);
Parameters
initialValue
The value of the variable at the start of the transition.
initialVelocity
The velocity of the variable at the start of the transition.
Return Value
The basic implementation always returns TRUE. Return FALSE from overridden implementation if you wish to fail the event.