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SDLmm_SRect

NAME

SDLmm::SRect - This enhanced version of SDL_Rect includes a number of handy short-hand constructors. Since the class is derived from the SDL_Rect struct, it can be used in any context where an SDL_Rect is valid.

SYNOPSIS

#include <sdlmm_srect.h>

Inherits SDL_Rect.

Public Methods

SRect ()
Default constructor which creates an empty SRect (xywh variables set to sero).
SRect (const SRect &rect)
This is the copy constructor. Simply initializes the value of an SRect to that of another SRect.
SRect (const SDL_Rect &rect)
Constructor which initializes the class from an SDL_Rect struct.
SRect (const SPoint &point)
Constructor which initializes the class from an SPoint object.
SRect (const SPoint &upper_left_point, const SPoint &bottom_right_point)
Construct an object using the given upper left and bottom right corners.
SRect (const SPoint &point, Uint16 nw, Uint16 nh)
Constructor which initializes the class from an SPoint object and integer values.
SRect (Sint16 nx, Sint16 ny, Uint16 nw, Uint16 nh)
Constructor which initializes the class from integer values.
SRect (Uint16 nw, Uint16 nh)
Constructor which initializes the width and height from integer values.
SRect& operator= (const SDL_Rect &rect)
Set the value of an SRect to that of an existing SDL_Rect or SRect.
bool operator== (const SDL_Rect &rect) const
Compare two rectangles for equality.
SPoint GetUpperLeft () const
Get the coordinates for the upper left corner of the SRect.
SPoint GetUpperRight () const
Get the coordinates for the upper right corner of the SRect.
SPoint GetBottomLeft () const
Get the coordinates for the bottom left corner of the SRect.
SPoint GetBottomRight () const
Get the coordinates for the bottom right corner of the SRect.

DETAILED DESCRIPTION

This enhanced version of SDL_Rect includes a number of handy short-hand constructors. Since the class is derived from the SDL_Rect struct, it can be used in any context where an SDL_Rect is valid.

Todo: Extend the class with useful utility functions in regards to rectangles like intersections.

Author: David Hedbor <david@hedbor.org>

CONSTRUCTOR & DESTRUCTOR DOCUMENTATION

SDLmm::SRect::SRect ()

Default constructor which creates an empty SRect (xywh variables set to sero).

SDLmm::SRect::SRect (const SRect & rect)

This is the copy constructor. Simply initializes the value of an SRect to that of another SRect.

Parameters:

rect

an existing SRect object.

SDLmm::SRect::SRect (const SDL_Rect & rect)

Constructor which initializes the class from an SDL_Rect struct.

Parameters:

rect

an existing SDL_Rect struct.

SDLmm::SRect::SRect (const SPoint & point)

Constructor which initializes the class from an SPoint object.

The x and y values will be initialized with the x/y values of the SPoint. h and w will be set to zero.

Parameters:

point

reference to an existing SPoint object.

SDLmm::SRect::SRect (const SPoint & upper_left_point, const SPoint & bottom_right_point)

Construct an object using the given upper left and bottom right corners.

Parameters:

upper_left_point

SPoint for the upper right corner of the rectangle

bottom_right_point

SPoint for the bottom right corner of the rectangle

SDLmm::SRect::SRect (const SPoint & point, Uint16 nw, Uint16 nh)

Constructor which initializes the class from an SPoint object and integer values.

The x and y values will be initialized with the x/y values of the SPoint and the dimensions from nw and nh.

Parameters:

nw, nh

the width and height of the rectangle

point

reference to an existing SPoint object for the upper right corner.

SDLmm::SRect::SRect (Sint16 nx, Sint16 ny, Uint16 nw, Uint16 nh)

Constructor which initializes the class from integer values.

Parameters:

nx, ny

position of the upper left corner of the rectangle

nw, nh

the width and height of the rectangle

SDLmm::SRect::SRect (Uint16 nw, Uint16 nh)

Constructor which initializes the width and height from integer values.

The x/y coordinates for the upper left corner will be set to zero.

Parameters:

nw, nh

the width and height of the rectangle

MEMBER FUNCTION DOCUMENTATION

SPoint SDLmm::SRect::GetBottomLeft () const [inline]

Get the coordinates for the bottom left corner of the SRect.

Returns: SPoint object

SPoint SDLmm::SRect::GetBottomRight () const [inline]

Get the coordinates for the bottom right corner of the SRect.

Returns: SPoint object

SPoint SDLmm::SRect::GetUpperLeft () const [inline]

Get the coordinates for the upper left corner of the SRect.

Returns: SPoint object

SPoint SDLmm::SRect::GetUpperRight () const [inline]

Get the coordinates for the upper right corner of the SRect.

Returns: SPoint object

SRect & SDLmm::SRect::operator= (const SDL_Rect & rect) [inline]

Set the value of an SRect to that of an existing SDL_Rect or SRect.

bool SDLmm::SRect::operator== (const SDL_Rect & rect) const [inline]

Compare two rectangles for equality.

Returns: true if x / y coordinates and h / w are identical in both rectangles.

AUTHOR

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