ImageCache Class Reference

Internal image cache. More...

#include <imagecache.h>

Public Member Functions
void	clear ()
	Clear the image cache.
std::shared_ptr< Surface >	get (const std::string &uri, float hscale=1.0, float vscale=1.0, bool approximate=true)
	Get an image surface.

Static Protected Member Functions
static std::string	id (const std::string &name, float hscale, float vscale)
static Surface	resize (const Surface &surface, const Size &size)
static float	round (float v, float fraction)

Protected Attributes
std::map< std::string, std::shared_ptr< Surface > >	m_cache

Detailed Description

Internal image cache.

Provides an in-memory cache for images based on name and scale. This prevents multiple attempts at loading the same file as well as re-scaling the image to the same scale multiple times.

This is a trade off in consuming more memory instead of possibly constantly reloading or scaling the same image.

Member Function Documentation

clear()

void clear

(

)

Clear the image cache.

get()

std::shared_ptr< Surface > get	(	const std::string &	uri,
		float	hscale = 1.0,
		float	vscale = 1.0,
		bool	approximate = true
	)

Get an image surface.

id()

static std::string id ( const std::string &  name, float  hscale, float  vscale  )

staticprotected

resize()

static Surface resize ( const Surface &  surface, const Size &  size  )

staticprotected

round()

static float round ( float  v, float  fraction  )

staticprotected

Member Data Documentation

m_cache

std::map<std::string, std::shared_ptr<Surface> > m_cache

protected