eq::fabric::Viewport Class Reference

A fractional viewport with methods for manipulation. More...

#include <viewport.h>

Collaboration diagram for eq::fabric::Viewport:

Public Member Functions
void	invalidate ()
	Make the viewport invalid.
void	apply (const Viewport &rhs)
	Apply (accumulate) another viewport.
void	transform (const Viewport &rhs)
	Transform this viewport into the rhs viewport space.
bool	operator== (const Viewport &rhs) const
bool	operator!= (const Viewport &rhs) const
bool	isValid () const
bool	hasArea () const
float	getArea () const
float	getXEnd () const
float	getYEnd () const
void	intersect (const Viewport &rhs)
	Create the intersection of the two viewports. More...
void	unite (const Viewport &rhs)
	Create the union of the two viewports. More...
Viewport	getCoverage (const Viewport &with) const
	Compute the coverage of another viewport on this viewport.
EQFABRIC_API void	applyView (const Viewport &segmentVP, const Viewport &viewVP, const PixelViewport &pvp, const Vector4i &overdraw)
	Apply the view coverage to this viewport.
Constructors
	Viewport ()
	Construct a full fractional viewport. More...
	Viewport (const float x_, const float y_, const float w_, const float h_)
	Construct a fractional viewport with default values. More...
	Viewport (const Vector4f &from)
	Construct a fractional viewport from a Vector4f. More...

Public Attributes
float	x
	The X coordinate.
float	y
	The Y coordinate.
float	w
	The width.
float	h
	The height.

Static Public Attributes
static EQFABRIC_API const Viewport	FULL
	A full viewport.

Detailed Description

A fractional viewport with methods for manipulation.

Definition at line 34 of file viewport.h.

Constructor & Destructor Documentation

eq::fabric::Viewport::Viewport ( )

inline

Construct a full fractional viewport.

Version

1.0

Definition at line 40 of file viewport.h.

eq::fabric::Viewport::Viewport ( const float  x_, const float  y_, const float  w_, const float  h_  )

inline

Construct a fractional viewport with default values.

Version

1.0

Definition at line 43 of file viewport.h.

eq::fabric::Viewport::Viewport ( const Vector4f &  from )

inlineexplicit

Construct a fractional viewport from a Vector4f.

Version

1.3.0

Definition at line 48 of file viewport.h.

Member Function Documentation

float eq::fabric::Viewport::getArea ( ) const

inline

Returns

the area of this viewport.

Version

1.0

Definition at line 109 of file viewport.h.

References h, and w.

float eq::fabric::Viewport::getXEnd ( ) const

inline

Returns

the X end position.

Version

1.0

Definition at line 112 of file viewport.h.

References w, and x.

Referenced by unite().

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float eq::fabric::Viewport::getYEnd ( ) const

inline

Returns

the Y end position.

Version

1.0

Definition at line 115 of file viewport.h.

References h, and y.

Referenced by unite().

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bool eq::fabric::Viewport::hasArea ( ) const

inline

Returns

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

Version

1.0

Definition at line 106 of file viewport.h.

References h, and w.

Referenced by intersect().

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void eq::fabric::Viewport::intersect ( const Viewport &  rhs )

inline

Create the intersection of the two viewports.

Version

1.0

Definition at line 118 of file viewport.h.

References h, hasArea(), invalidate(), isValid(), w, x, and y.

Referenced by getCoverage().

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bool eq::fabric::Viewport::isValid ( ) const

inline

Returns

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

Version

1.0

Definition at line 98 of file viewport.h.

References h, w, x, and y.

Referenced by apply(), and intersect().

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bool eq::fabric::Viewport::operator!= ( const Viewport &  rhs ) const

inline

Returns

true if the two viewports are not identical.

Version

1.0

Definition at line 88 of file viewport.h.

References h, w, x, and y.

bool eq::fabric::Viewport::operator== ( const Viewport &  rhs ) const

inline

Returns

true if the two viewports are identical.

Version

1.0

Definition at line 79 of file viewport.h.

References h, w, x, and y.

void eq::fabric::Viewport::unite ( const Viewport &  rhs )

inline

Create the union of the two viewports.

Version

1.0

Definition at line 150 of file viewport.h.

References getXEnd(), getYEnd(), h, w, x, and y.

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

• viewport.h