Animation Class Reference

A single animation controlling alpha, zoom, rotation and position. More...

#include <mythfrontend/galleryslide.h>

Inheritance diagram for Animation:

Collaboration diagram for Animation:

Public Types
enum	Type : std::uint8_t {   None , Alpha , Position , Zoom ,   HorizontalZoom , VerticalZoom , Angle }
	Supported effects. More...

Public Member Functions
	Animation (Slide *image, Type type=Alpha)
	Create simple animation. More...
void	Start (bool forwards=true, float speed=1.0) override
	Start a single animation. More...
void	Pulse () override
	Progress single animation. More...
void	Set (const QVariant &from, const QVariant &to, std::chrono::milliseconds duration=500ms, const QEasingCurve &curve=QEasingCurve::InOutCubic, UIEffects::Centre centre=UIEffects::Middle)
	Initialises an animation. More...
void	updateCurrentValue (const QVariant &value) override
	Update animated value. More...
Public Member Functions inherited from AbstractAnimation
	AbstractAnimation ()=default
virtual void	Start (bool forwards, float speed=1.0)
	Initialise & start base animation. More...
virtual void	Stop ()
virtual void	SetSpeed (float speed)
virtual void	Pulse ()=0
virtual void	Clear ()

Protected Attributes
Slide *	m_parent {nullptr}
	Image to be animated. More...
Type	m_type
UIEffects::Centre	m_centre {UIEffects::Middle}
std::chrono::milliseconds	m_elapsed {0ms}
	Current millisec position within animation, 0..duration. More...
std::chrono::milliseconds	m_lastUpdate { MythDate::currentMSecsSinceEpochAsDuration() }
Protected Attributes inherited from AbstractAnimation
bool	m_forwards {true}
	Play direction. More...
bool	m_running {false}
	True whilst animation is active. More...
float	m_speed {0.0F}
	Real-time = 1.0, Double-speed = 2.0. More...

Additional Inherited Members
Signals inherited from AbstractAnimation
void	finished ()
	Signals animation has finished. More...
Protected Slots inherited from AbstractAnimation
virtual void	Finished ()
	To be called when animation completes. More...

Detailed Description

A single animation controlling alpha, zoom, rotation and position.

Note

This is almost compatible with MythUIAnimation (they could be merged)

Definition at line 54 of file galleryslide.h.

Member Enumeration Documentation

Type

enum Animation::Type : std::uint8_t

Supported effects.

Enumerator
None
Alpha
Position
Zoom
HorizontalZoom
VerticalZoom
Angle

Definition at line 58 of file galleryslide.h.

Constructor & Destructor Documentation

Animation()

Animation::Animation ( Slide *  image, Type  type = Alpha  )

inlineexplicit

Create simple animation.

Parameters

image	Image to be animated
type	Effect to be animated

Definition at line 65 of file galleryslide.h.

Member Function Documentation

Pulse()

void Animation::Pulse ( void  )

overridevirtual

Progress single animation.

Implements AbstractAnimation.

Definition at line 81 of file galleryslide.cpp.

Referenced by Slide::Pulse().

Set()

void Animation::Set	(	const QVariant &	from,
		const QVariant &	to,
		std::chrono::milliseconds	duration = 500ms,
		const QEasingCurve &	curve = QEasingCurve::InOutCubic,
		UIEffects::Centre	centre = UIEffects::Middle
	)

Initialises an animation.

Parameters

from	Start value
to	End value
duration	Animation duration
curve	Easing curve governing animation
centre	Zoom centre

Definition at line 49 of file galleryslide.cpp.

Referenced by Slide::Pan(), and Slide::Zoom().

Start()

void Animation::Start ( bool  forwards = true, float  speed = 1.0  )

overridevirtual

Start a single animation.

Parameters

forwards	Direction
speed	Speed factor, 1x, 2x etc

Reimplemented from AbstractAnimation.

Definition at line 66 of file galleryslide.cpp.

Referenced by Slide::Pan(), and Slide::Zoom().

updateCurrentValue()

void Animation::updateCurrentValue ( const QVariant &  value )

override

Update animated value.

Parameters

value

Latest value, derived from animation time & easing curve

Definition at line 102 of file galleryslide.cpp.

Member Data Documentation

m_centre

UIEffects::Centre Animation::m_centre {UIEffects::Middle}

protected

Definition at line 81 of file galleryslide.h.

Referenced by Set(), and updateCurrentValue().

m_elapsed

std::chrono::milliseconds Animation::m_elapsed {0ms}

protected

Current millisec position within animation, 0..duration.

Decreases duration..0 when playing backwards

Definition at line 84 of file galleryslide.h.

Referenced by Pulse(), and Start().

m_lastUpdate

std::chrono::milliseconds Animation::m_lastUpdate { MythDate::currentMSecsSinceEpochAsDuration() }

protected

Definition at line 85 of file galleryslide.h.

Referenced by Pulse().

m_parent

Slide* Animation::m_parent {nullptr}

protected

Image to be animated.

Definition at line 79 of file galleryslide.h.

Referenced by updateCurrentValue(), and PanAnimation::updateCurrentValue().

m_type

Type Animation::m_type

protected

Definition at line 80 of file galleryslide.h.

Referenced by updateCurrentValue().

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The documentation for this class was generated from the following files:

• mythtv/programs/mythfrontend/galleryslide.h
• mythtv/programs/mythfrontend/galleryslide.cpp