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ZE::ZImage Class Reference

#include <ZE_ZImage.h>

Inherits ZE::ZObject.

List of all members.

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Detailed Description

ZImage image drawing class, class wraps common features of SDL_Surface. Inherited from ZObject.

Public Methods
	ZImage ()
	Default Constructor.
	ZImage (string filename)
	Constructor to Construct from File.
	ZImage (SDL_Surface *surface)
	Constructor to Construct from SDL_Surface*.
	ZImage (SDL_Surface *img, Sint16 x, Sint16 y, Sint16 w, Sint16 h)
	Constructor to Construct from part of an SDL_Surface*.
	~ZImage ()
	Destructor, frees memory.
void	Open (string filename)
	Opens a file.
void	OpenFromImage (SDL_Surface *img, Sint16 x, Sint16 y, Sint16 w, Sint16 h)
	Cuts part of an existing image to create the new image.
void	Attach (SDL_Surface *surface)
	Attach an existing surface to class.
void	Release ()
	Releases image.
void	SetColorKey (Uint8 red, Uint8 green, Uint8 blue)
	Set Color Key (transparent color) of Image.
void	Bind ()
	OpenGL related bind call.
void	Draw (int x, int y)
	Draw Image to Screen.
bool	IsLoaded ()
	Check if file is loaded.
SDL_Surface *	Surface ()
	Get SDL_Surface. Get SDL_Surface pointer to actual image data.
int	Width ()
	Get Width.
int	Height ()
	Get Height.
Protected Attributes
GLfloat	rTexMaxX
	Texture X width ratio, used internally by OpenGL.
GLfloat	rTexMaxY
	Texture Y width ratio, used internally by OpenGL.
SDL_Surface *	rImage
	Stored texture for future use.
unsigned int	rTexID
	Texture ID for OpenGL.
unsigned int	rWidth
	Current draw width of Texture.
unsigned int	rHeight
	Current draw height of Texture.

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Constructor & Destructor Documentation

ZE::ZImage::ZImage (    )

Default Constructor, initializes variables.

ZE::ZImage::ZImage (  string    filename )

Constructor is same as calling ZImage::Open() on passed filename. Parameters: filename  File to open as rImage.

ZE::ZImage::ZImage (  SDL_Surface *    surface )

Constructor is same as calling ZImage::Attach() on passed SDL_Surface*. Parameters: surface  SDL_Surface* to use as rImage.

ZE::ZImage::ZImage (  SDL_Surface *    img, Sint16    x, Sint16    y, Sint16    w, Sint16    h )

Constructor is same as calling ZImage::OpenFromImage. Parameters: img  Image to take new image from. x  X Coordinate in source of top left corner. y  Y Coordinate in source of top left corner. w  Width of new image. h  Height of new image.

ZE::ZImage::~ZImage (    )

Destructor calls ZImage::Release().

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Member Function Documentation

void ZE::ZImage::Open (  string    filename )

Open a file using ZEngine. Loads into rImage member of class. Parameters: filename  File to open as rImage.

void ZE::ZImage::OpenFromImage (  SDL_Surface *    img, Sint16    x, Sint16    y, Sint16    w, Sint16    h )

Cut part of an SDL_Surface to create a new Image. Parameters: img  Image to take new image from. x  X Coordinate in source of top left corner. y  Y Coordinate in source of top left corner. w  Width of new image. h  Height of new image.

void ZE::ZImage::Attach (  SDL_Surface *    surface )

Attach a pointer to instance of ZImage. (NOTE: Should not be used on a surface that is owned elsewhere.) Parameters: surface  SDL_Surface* to use as rImage.

void ZE::ZImage::Release (    )

Frees memory via call to SDL_FreeSurface for the image.

void ZE::ZImage::SetColorKey (  Uint8    red, Uint8    green, Uint8    blue )

Set color which will not be drawn in image. Parameters: red  Red component of colorkey (0-255). green  Green component of colorkey (0-255). blue  Blue component of colorkey (0-255).

void ZE::ZImage::Bind (    )

OpenGL related bind call, only available in case you want to bind image in 3D. Draw uses this but the average user should never need to call this.

void ZE::ZImage::Draw (  int    x, int    y )

Draw Image to screen at specified location. Parameters: x  X coord to draw Image to. y  Y coord to draw Image to.

bool ZE::ZImage::IsLoaded (    )

Check if file is loaded and pointer to data is non-NULL. Returns: Loaded or Unloaded state of data.

SDL_Surface * ZE::ZImage::Surface (    )

Returns: SDL_Surface* of rImage.

int ZE::ZImage::Width (    )

Get Current Width of Image. Returns: Image Width.

int ZE::ZImage::Height (    )

Get Current Height of Image. Returns: Image Height.

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

• /include/ZE_ZImage.h
• /src/ZE_ZImage.cpp

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