eq::fabric::Viewport Class Reference

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

#include <viewport.h>

Collaboration diagram for eq::fabric::Viewport:

List of all members.

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.
void	unite (const Viewport &rhs)
	Create the union of the two viewports.
Viewport	getCoverage (const Viewport &with) const
	Compute the coverage of another viewport on this viewport.
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.
	Viewport (const float x_, const float y_, const float w_, const float h_)
	Construct a fractional viewport with default values.
	Viewport (const Vector4f &from)
	Construct a fractional viewport from a Vector4f.
Public Attributes
float	x
	The X coordinate.
float	y
	The Y coordinate.
float	w
	The width.
float	h
	The height.
Static Public Attributes
static const Viewport	FULL
	A full viewport.

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Detailed Description

A fractional viewport with methods for manipulation.

Definition at line 36 of file viewport.h.

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Constructor & Destructor Documentation

eq::fabric::Viewport::Viewport

(

)

[inline]

Construct a full fractional viewport.

Version:

1.0

Definition at line 42 of file viewport.h.

eq::fabric::Viewport::Viewport	(	const float	x_,
		const float	y_,
		const float	w_,
		const float	h_
	)		[inline, explicit]

Construct a fractional viewport with default values.

Version:

1.0

Definition at line 45 of file viewport.h.

eq::fabric::Viewport::Viewport

(

const Vector4f &

from

)

[inline, explicit]

Construct a fractional viewport from a Vector4f.

Version:

1.3.0

Definition at line 50 of file viewport.h.

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Member Function Documentation

float eq::fabric::Viewport::getArea

(

)

const [inline]

Returns:

the area of this viewport.

Version:

1.0

Definition at line 111 of file viewport.h.

References h.

float eq::fabric::Viewport::getXEnd

(

)

const [inline]

Returns:

the X end position.

Version:

1.0

Definition at line 114 of file viewport.h.

References w.

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 117 of file viewport.h.

References h.

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 108 of file viewport.h.

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 120 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 100 of file viewport.h.

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 90 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 81 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 152 of file viewport.h.

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

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

• viewport.h