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. More...

virtual wxAnimationDecoder *	Clone () const
	Create a copy of this decoder. More...

virtual wxAnimationType	GetType () const
	Return the animation type this decoder implements. More...

virtual bool	ConvertToImage (unsigned int frame, wxImage *image) const
	Convert given frame to `wxImage`. More...

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. More...

virtual long	GetDelay (unsigned int frame) const
	Return the number of milliseconds this frame should be displayed. More...

virtual wxColour	GetTransparentColour (unsigned int frame) const
	The transparent colour for this frame, if any, or `wxNullColour`. More...

Public Member Functions inherited from wxAnimationDecoder
	wxAnimationDecoder ()

virtual bool	Load (wxInputStream &stream)=0
	Load the animation image frames from the given stream. More...

bool	CanRead (wxInputStream &stream) const
	Returns true if this decoder supports loading from the given stream. More...

virtual wxAnimationDecoder *	Clone () const =0
	Create a copy of this decoder. More...

virtual wxAnimationType	GetType () const =0
	Return the animation type this decoder implements. More...

virtual bool	ConvertToImage (unsigned int frame, wxImage *image) const =0
	Convert given frame to `wxImage`. More...

virtual wxSize	GetFrameSize (unsigned int frame) const =0

virtual wxPoint	GetFramePosition (unsigned int frame) const =0

virtual wxAnimationDisposal	GetDisposalMethod (unsigned int frame) const =0
	What should be done after displaying this frame. More...

virtual long	GetDelay (unsigned int frame) const =0
	Return the number of milliseconds this frame should be displayed. More...

virtual wxColour	GetTransparentColour (unsigned int frame) const =0
	The transparent colour for this frame, if any, or `wxNullColour`. More...

wxSize	GetAnimationSize () const

wxColour	GetBackgroundColour () const

unsigned int	GetFrameCount () const

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. More...

virtual bool	DoCanRead (wxInputStream &stream) const =0
	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. More...

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.