eq::fabric::PixelViewport Class Reference

Holds a 2D pixel viewport with methods for manipulation. More...

#include <pixelViewport.h>

List of all members.

Public Member Functions
Constructors
	PixelViewport ()
	Construct a new, invalid pixel viewport.
	PixelViewport (const int32_t x_, const int32_t y_, const int32_t w_, const int32_t h_)
	Construct a new pixel viewport with default values.
	PixelViewport (const int32_t pvp[4])
	Construct a new pixel viewport with default values.
Data Access
void	invalidate ()
	Invalidate the pixel viewport.
bool	isValid () const
bool	hasArea () const
uint32_t	getArea () const
bool	isInside (const int32_t pX, const int32_t pY) const
Operations
void	apply (const Viewport &rhs)
	Apply a fractional viewport to this pixel viewport.
void	apply (const Pixel &pixel)
	Apply a pixel decomposition to this pixel viewport.
void	apply (const Zoom &zoom)
	Apply a zoom to this pixel viewport.
const Viewport	getSubVP (const PixelViewport &rhs) const
const Zoom	getZoom (const PixelViewport &rhs) const
int32_t	getXEnd () const
int32_t	getYEnd () const
const PixelViewport	operator+ (const Vector2i &offset) const
void	unapply (const Pixel &pixel)
	Perform the inverse operation of applying a pixel decomposition to this pixel viewport.
bool	operator== (const PixelViewport &rhs) const
bool	operator!= (const PixelViewport &rhs) const
void	merge (const PixelViewport &rhs)
	Create a pixel viewport that includes both viewports (union).
void	intersect (const PixelViewport &rhs)
	Create the intersection of the two pixel viewports.
Public Attributes
int32_t	x
int32_t	y
int32_t	w
int32_t	h

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Detailed Description

Holds a 2D pixel viewport with methods for manipulation.

Definition at line 34 of file pixelViewport.h.

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Constructor & Destructor Documentation

eq::fabric::PixelViewport::PixelViewport

(

)

[inline]

Construct a new, invalid pixel viewport.

Version:

1.0

Definition at line 40 of file pixelViewport.h.

Referenced by operator+().

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eq::fabric::PixelViewport::PixelViewport	(	const int32_t	x_,
		const int32_t	y_,
		const int32_t	w_,
		const int32_t	h_
	)		[inline, explicit]

Construct a new pixel viewport with default values.

Version:

1.0

Definition at line 43 of file pixelViewport.h.

eq::fabric::PixelViewport::PixelViewport

(

const int32_t

pvp[4]

)

[inline, explicit]

Construct a new pixel viewport with default values.

Version:

1.1.6

Definition at line 48 of file pixelViewport.h.

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Member Function Documentation

uint32_t eq::fabric::PixelViewport::getArea

(

)

const [inline]

Returns:

the area in pixels.

Version:

1.0

Definition at line 72 of file pixelViewport.h.

const Viewport eq::fabric::PixelViewport::getSubVP

(

const PixelViewport &

rhs

)

const [inline]

Returns:

the viewport which would result in the given rhs pixel viewport when applied to this pixel viewport.

Definition at line 143 of file pixelViewport.h.

References eq::fabric::Viewport::FULL, and hasArea().

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int32_t eq::fabric::PixelViewport::getXEnd

(

)

const [inline]

Returns:

the X end position.

Version:

1.0

Definition at line 177 of file pixelViewport.h.

int32_t eq::fabric::PixelViewport::getYEnd

(

)

const [inline]

Returns:

the Y end position.

Version:

1.0

Definition at line 180 of file pixelViewport.h.

const Zoom eq::fabric::PixelViewport::getZoom

(

const PixelViewport &

rhs

)

const [inline]

Returns:

the zoom which would result in the given rhs pixel viewport when applied to this pixel viewport.

Definition at line 163 of file pixelViewport.h.

References hasArea(), and eq::fabric::Zoom::NONE.

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bool eq::fabric::PixelViewport::hasArea

(

)

const [inline]

Returns:

true if the pixel viewport has a non-zero area, i.e, it is not empty.

Version:

1.0

Definition at line 69 of file pixelViewport.h.

Referenced by getSubVP(), getZoom(), intersect(), and merge().

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void eq::fabric::PixelViewport::intersect

(

const PixelViewport &

rhs

)

[inline]

Create the intersection of the two pixel viewports.

Version:

1.0

Definition at line 246 of file pixelViewport.h.

References hasArea(), invalidate(), and isValid().

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void eq::fabric::PixelViewport::invalidate

(

)

[inline]

Invalidate the pixel viewport.

Version:

1.0

Definition at line 55 of file pixelViewport.h.

Referenced by intersect().

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bool eq::fabric::PixelViewport::isInside	(	const int32_t	pX,
		const int32_t	pY
	)		const [inline]

Returns:

true if the given point is inside the pixel viewport.

Version:

1.0

Definition at line 78 of file pixelViewport.h.

bool eq::fabric::PixelViewport::isValid

(

)

const [inline]

Returns:

true if the pixel viewport has a non-negative, but potentially empty, size.

Version:

1.0

Definition at line 62 of file pixelViewport.h.

Referenced by intersect().

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void eq::fabric::PixelViewport::merge

(

const PixelViewport &

rhs

)

[inline]

Create a pixel viewport that includes both viewports (union).

Version:

1.0

Definition at line 223 of file pixelViewport.h.

References hasArea().

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bool eq::fabric::PixelViewport::operator!=

(

const PixelViewport &

rhs

)

const [inline]

Returns:

true if the two pixel viewports are not identical.

Version:

1.0

Definition at line 214 of file pixelViewport.h.

const PixelViewport eq::fabric::PixelViewport::operator+

(

const Vector2i &

offset

)

const [inline]

Returns:

the addition of this pvp with an offset.

Version:

1.0

Definition at line 183 of file pixelViewport.h.

References PixelViewport().

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bool eq::fabric::PixelViewport::operator==

(

const PixelViewport &

rhs

)

const [inline]

Returns:

true if the two pixel viewports are identical.

Version:

1.0

Definition at line 205 of file pixelViewport.h.

void eq::fabric::PixelViewport::unapply

(

const Pixel &

pixel

)

[inline]

Perform the inverse operation of applying a pixel decomposition to this pixel viewport.

Version:

1.0

Definition at line 193 of file pixelViewport.h.

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

• pixelViewport.h