# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# vl::Viewport Class Reference

Implements the viewport and clearing settings associated to a Camera. More...

`#include <Viewport.hpp>`

Inheritance diagram for vl::Viewport:

List of all members.

## Public Member Functions

virtual const char * | className ()
| Returns the name of the class.
| Viewport ()
| Viewport (int x, int y, int w, int h)
void | activate () const
bool | null ()
void | set (int x, int y, int w, int h)
void | setX (int x)
int | x () const
void | setY (int y)
int | y () const
void | setWidth (int width)
int | width () const
void | setHeight (int height)
int | height () const
fvec2 | center () const
RectI | rect () const
| Returns the rectangular area that defines the viewport computed as RectI(x(), y(), x()+width()-1, y()+height()-1).
void | setClearColor (float r, float g, float b, float a)
void | setClearColor (const fvec4 &color)
const fvec4 & | clearColor () const
void | setClearColorInt (int r, int g, int b, int a)
void | setClearColorInt (const ivec4 &color)
const ivec4 & | clearColorInt () const
void | setClearColorUInt (unsigned int r, unsigned int g, unsigned int b, unsigned int a)
void | setClearColorUInt (const uvec4 &color)
const uvec4 & | clearColorUInt () const
void | setClearStencil (int stencil)
int | clearStencil () const
void | setClearDepth (Real depth)
Real | clearDepth () const
void | setClearFlags (EClearFlags clear_flags)
EClearFlags | clearFlags () const
void | setClearColorMode (EClearColorMode mode)
EClearColorMode | clearColorMode () const
bool | isPointInside (int x, int y, int render_target_height) const
| Returns true if the given point is inside the Viewport.

## Protected Attributes

fvec4 | mClearColor
ivec4 | mClearColorInt
uvec4 | mClearColorUInt
Real | mClearDepth
int | mClearStencil
EClearFlags | mClearFlags
EClearColorMode | mClearColorMode
int | mX
int | mY
int | mWidth
int | mHeight

## Detailed Description

Implements the viewport and clearing settings associated to a Camera.

Supports glClearColor, glClearColorIiEXT and glClearColorIuiEXT (see GL_EXT_texture_integer).

See also:
  Camera, Rendering, Renderer

## Constructor & Destructor Documentation

Viewport::Viewport | ( |  | ) |

Viewport::Viewport | ( | int | x,
|  | int | y,
|  | int | w,
|  | int | h |
| ) |  |  |

## Member Function Documentation

virtual const char* vl::Viewport::className | ( |  | ) | `[inline, virtual]`

Returns the name of the class.

Reimplemented from vl::Object.

void Viewport::activate | ( |  | ) | const

bool vl::Viewport::null | ( |  | ) | `[inline]`

void vl::Viewport::set | ( | int | x,
|  | int | y,
|  | int | w,
|  | int | h |
| ) |  |  | `[inline]`

void vl::Viewport::setX | ( | int | x | ) | `[inline]`

int vl::Viewport::x | ( |  | ) | const`[inline]`

void vl::Viewport::setY | ( | int | y | ) | `[inline]`

int vl::Viewport::y | ( |  | ) | const`[inline]`

void vl::Viewport::setWidth | ( | int | width | ) | `[inline]`

int vl::Viewport::width | ( |  | ) | const`[inline]`

void vl::Viewport::setHeight | ( | int | height | ) | `[inline]`

int vl::Viewport::height | ( |  | ) | const`[inline]`

fvec2 vl::Viewport::center | ( |  | ) | const`[inline]`

RectI vl::Viewport::rect | ( |  | ) | const`[inline]`

Returns the rectangular area that defines the viewport computed as RectI(x(), y(), x()+width()-1, y()+height()-1).

void vl::Viewport::setClearColor | ( | float | r,
|  | float | g,
|  | float | b,
|  | float | a |
| ) |  |  | `[inline]`

void vl::Viewport::setClearColor | ( | const fvec4 & | color | ) | `[inline]`

const fvec4& vl::Viewport::clearColor | ( |  | ) | const`[inline]`

void vl::Viewport::setClearColorInt | ( | int | r,
|  | int | g,
|  | int | b,
|  | int | a |
| ) |  |  | `[inline]`

void vl::Viewport::setClearColorInt | ( | const ivec4 & | color | ) | `[inline]`

const ivec4& vl::Viewport::clearColorInt | ( |  | ) | const`[inline]`

void vl::Viewport::setClearColorUInt | ( | unsigned int | r,
|  | unsigned int | g,
|  | unsigned int | b,
|  | unsigned int | a |
| ) |  |  | `[inline]`

void vl::Viewport::setClearColorUInt | ( | const uvec4 & | color | ) | `[inline]`

const uvec4& vl::Viewport::clearColorUInt | ( |  | ) | const`[inline]`

void vl::Viewport::setClearStencil | ( | int | stencil | ) | `[inline]`

int vl::Viewport::clearStencil | ( |  | ) | const`[inline]`

void vl::Viewport::setClearDepth | ( | Real | depth | ) | `[inline]`

Real vl::Viewport::clearDepth | ( |  | ) | const`[inline]`

void vl::Viewport::setClearFlags | ( | EClearFlags | clear_flags | ) | `[inline]`

EClearFlags vl::Viewport::clearFlags | ( |  | ) | const`[inline]`

void vl::Viewport::setClearColorMode | ( | EClearColorMode | mode | ) | `[inline]`

EClearColorMode vl::Viewport::clearColorMode | ( |  | ) | const`[inline]`

bool Viewport::isPointInside | ( | int | x,
|  | int | y,
|  | int | render_target_height |
| ) |  |  | const

Returns true if the given point is inside the Viewport.

## Member Data Documentation

fvec4 vl::Viewport::mClearColor`[protected]`

ivec4 vl::Viewport::mClearColorInt`[protected]`

uvec4 vl::Viewport::mClearColorUInt`[protected]`

Real vl::Viewport::mClearDepth`[protected]`

int vl::Viewport::mClearStencil`[protected]`

EClearFlags vl::Viewport::mClearFlags`[protected]`

EClearColorMode vl::Viewport::mClearColorMode`[protected]`

int vl::Viewport::mX`[protected]`

int vl::Viewport::mY`[protected]`

int vl::Viewport::mWidth`[protected]`

int vl::Viewport::mHeight`[protected]`

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

- E:/VisualizationLibrary/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vl/Viewport.hpp
- E:/VisualizationLibrary/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vl/Viewport.cpp

Visualization Library v2009.07 Reference Documentation
Copyright 2005-2009 Michele Bosi. All rights reserved.
Updated on Mon Aug 10 21:41:45 2009.
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