ImageCache Class Reference

Manages caching of GDI+ images to improve rendering performance. More...

#include <ImageCache.h>

Public Member Functions
	ImageCache ()
	Constructs an empty ImageCache.
virtual	~ImageCache ()
	Destructor clears and releases all cached images.
void	clear ()
	Clears all cached images, releasing their memory.
BOOL	addImage (const wstring &key, const wstring &filePath)
	Loads an image from a file and adds it to the cache with the specified key.
BOOL	drawImage (Graphics *g, const wstring &key, Bounds rect, const ImageAlignment &alignment, BOOL showBorder)
	Draws a cached image identified by key onto a device context.

Detailed Description

Manages caching of GDI+ images to improve rendering performance.

This class stores images keyed by a string, loads images from files, and draws cached images to device contexts with specified alignment and optional border.

Constructor & Destructor Documentation

ImageCache()

ImageCache::ImageCache

(

)

Constructs an empty ImageCache.

~ImageCache()

virtual ImageCache::~ImageCache ( )

virtual

Destructor clears and releases all cached images.

Member Function Documentation

addImage()

BOOL ImageCache::addImage	(	const wstring &	key,
		const wstring &	filePath )

Loads an image from a file and adds it to the cache with the specified key.

Parameters

key	The string key to identify the cached image.
filePath	The file path of the image to load.

Returns

TRUE if the image was loaded and cached successfully, FALSE otherwise.

clear()

void ImageCache::clear

(

)

Clears all cached images, releasing their memory.

drawImage()

BOOL ImageCache::drawImage	(	Graphics *	g,
		const wstring &	key,
		Bounds	rect,
		const ImageAlignment &	alignment,
		BOOL	showBorder )

Draws a cached image identified by key onto a device context.

Parameters

hDC	Handle to the device context where the image will be drawn.
key	The key identifying the cached image.
rect	The target rectangle for drawing the image.
alignment	Alignment of the image within the rectangle (e.g., "topLeft", "middleCenter").
showBorder	If TRUE, draws a border around the image.

Returns

TRUE if the image was found and drawn successfully, FALSE otherwise.

---

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

• ImageCache.h