Laxkit::LaxImage Class Reference

Abstraction around images. More...

Inheritance diagram for Laxkit::LaxImage:

List of all members.

Public Member Functions
	LaxImage (const char *fname)
virtual	~LaxImage ()
virtual int	imagetype ()=0
virtual unsigned int	imagestate ()=0
	Return whether this is valid image, is whole image, etc.
virtual void	doneForNow ()
	The file that the image is supposed to correspond to.
virtual int	w ()=0
	Return the width of the actual image.
virtual int	h ()=0
	Return the height of the actual image.
virtual int	dataw ()=0
	Return the width of the image in memory (the actual or preview), or 0 if neither is in memory.
virtual int	datah ()=0
	Return the height of the image in memory (the actual or preview), or 1 if neither is in memory.
virtual void	clear ()=0
	Clear all data contained in this image.
virtual unsigned char *	getImageBuffer ()=0
virtual int	doneWithBuffer (unsigned char *buffer)=0
Public Member Functions inherited from Laxkit::anObject
	anObject ()
	Set object_id=getUniqueNumber().
virtual	~anObject ()
	Empty virtual destructor.
virtual const char *	whattype ()
	Returns the type of anObject.
virtual anObject *	duplicate (anObject *ref=NULL)
virtual int	inc_count ()
	Increment the data's count by 1. Returns count.
virtual int	dec_count ()
	Decrement the count of the data, deleting if count is less than or equal to 0.
virtual int	the_count ()

Public Attributes
char	delpreview
	1 to unlink previewfile in the destructor, else 0.
char *	filename
char *	previewfile
clock_t	lastaccesstime
Public Attributes inherited from Laxkit::anObject
int	suppress_debug
DeleteRefCountedFunc	deleteMe
	Called when the count is decremented to 0.
unsigned long	object_id
char *	object_idstr

Additional Inherited Members
Protected Attributes inherited from Laxkit::anObject
int	_count
	The reference count of the object.

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Detailed Description

Abstraction around images.

The purpose of this class is to provide a relatively simple abstraction of images to make simple image loading easy, such as for icons. There is also a mechanism to allow a preview image to shadow the actual image. See previewfile for more.

If filename exists, but w()<=0, then the filename is invalid. Otherwise, the w() and h() refer to the actual width and height of the image. Same goes for previewfile, dataw(), and datah().

Todo:

dataw() and datah() should be renamed pw() and ph(), plus might be useful to have a imagew() and imageh() for the dims of the thing that image points to.

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

• laximages.h
• laximages.cc