Detailed Description

An animation decoder supporting animated GIF files.

Public Member Functions
	wxGIFDecoder ()
	~wxGIFDecoder ()
virtual bool	Load (wxInputStream &stream)
	Load the animation image frames from the given stream.
virtual wxAnimationDecoder *	Clone () const
	Create a copy of this decoder.
virtual wxAnimationType	GetType () const
	Return the animation type this decoder implements.
virtual bool	ConvertToImage (unsigned int frame, wxImage *image) const
	Convert given frame to `wxImage`.
virtual wxSize	GetFrameSize (unsigned int frame) const
virtual wxPoint	GetFramePosition (unsigned int frame) const
virtual wxAnimationDisposal	GetDisposalMethod (unsigned int frame) const
	What should be done after displaying this frame.
virtual long	GetDelay (unsigned int frame) const
	Return the number of milliseconds this frame should be displayed.
virtual wxColour	GetTransparentColour (unsigned int frame) const
	The transparent colour for this frame, if any, or `wxNullColour`.
Public Member Functions inherited from wxAnimationDecoder
	wxAnimationDecoder ()
bool	CanRead (wxInputStream &stream) const
	Returns true if this decoder supports loading from the given stream.
wxSize	GetAnimationSize () const
wxColour	GetBackgroundColour () const
unsigned int	GetFrameCount () const
Public Member Functions inherited from wxRefCounter
	wxRefCounter ()
	Default constructor.
void	DecRef ()
	Decrements the reference count associated with this shared data and, if it reaches zero, destroys this instance of wxRefCounter releasing its memory.
int	GetRefCount () const
	Returns the reference count associated with this shared data.
void	IncRef ()
	Increments the reference count associated with this shared data.

Protected Member Functions
virtual bool	DoCanRead (wxInputStream &stream) const
	Checks the signature of the data in the given stream and returns true if it appears to be a valid animation format recognized by the animation decoder; this function should modify the stream current position without taking care of restoring it since `CanRead()` will do it.
Protected Member Functions inherited from wxRefCounter
virtual	~wxRefCounter ()
	Destructor.

Constructor & Destructor Documentation

◆ wxGIFDecoder()

wxGIFDecoder::wxGIFDecoder ( )

◆ ~wxGIFDecoder()

wxGIFDecoder::~wxGIFDecoder ( )

Member Function Documentation

◆ Clone()

virtual wxAnimationDecoder * wxGIFDecoder::Clone ( ) const

virtual

Create a copy of this decoder.

Implements wxAnimationDecoder.

◆ ConvertToImage()

virtual bool wxGIFDecoder::ConvertToImage	(	unsigned int	frame,
		wxImage *	image ) const

virtual

Convert given frame to wxImage.

Implements wxAnimationDecoder.

◆ DoCanRead()

virtual bool wxGIFDecoder::DoCanRead ( wxInputStream & stream ) const

protectedvirtual

Checks the signature of the data in the given stream and returns true if it appears to be a valid animation format recognized by the animation decoder; this function should modify the stream current position without taking care of restoring it since CanRead() will do it.

Implements wxAnimationDecoder.