DrawDispList Class Reference

A display list generating class. More...

#include <drawables.h>

Inheritance diagram for DrawDispList:

Collaboration diagram for DrawDispList:

Public Member Functions
	DrawDispList ()
	Constructor. More...
virtual	~DrawDispList ()
	Destructor. More...
virtual unsigned int	getType () const
void	draw () const
	Execute the display list. More...
bool	startList (bool execute)
	Set it such that many openGL calls map to the display list. More...
void	addDrawable (const DrawableObj *)
	Add a drawable object - list MUST be active. More...
bool	endList ()
	Close the list - this will clear the gl error system. More...
void	getBoundingBox (BoundCube &b) const
	Get bounding cube. More...
Public Member Functions inherited from DrawableObj
virtual bool	isOverlay () const
	Is this an overlay? By default, no. More...
	DrawableObj ()
	Constructor. More...
virtual DrawableObj *	clone () const
virtual bool	needsDepthSorting () const
	Do we need to do element based depth sorting? More...
virtual bool	isExplodable () const
	Can we break this object down into constituent elements? More...
virtual void	explode (std::vector< DrawableObj *> &simpleObjects)
	Break object down into simple elements. More...
virtual bool	hasChanged () const
void	setActive (bool active)
	Set the active state of the object. More...
void	setInteract (bool canAct)
	Set if user can interact with object, needed for opengl hit testing. More...
virtual	~DrawableObj ()
	Drawable destructor. More...
virtual void	recomputeParams (const std::vector< Point3D > &vecs, const std::vector< float > &scalars, unsigned int mode)
	If we offer any kind of external pointer interface; use this to do a recomputation as needed. This is needed for selection binding behaviour. More...
virtual Point3D	getCentroid () const
	Get the centre of the object. Only valid if object is simple. More...

Additional Inherited Members
Static Public Member Functions inherited from DrawableObj
static void	setUseAlphaBlending (bool willBlend)
static void	setCurCamera (const Camera *c)
	Set the current camera. More...
static void	setTexPool (TexturePool *t)
	Set the current camera. More...
static void	clearTexPool ()
static void	setWindowSize (unsigned int x, unsigned int y)
static void	setBackgroundColour (float r, float g, float b)
Public Attributes inherited from DrawableObj
bool	canSelect
	Can be selected from openGL viewport interactively? More...
bool	wantsLight
	Wants lighting calculations active during render? More...
Static Protected Member Functions inherited from DrawableObj
static float	getHighContrastValue ()
Protected Attributes inherited from DrawableObj
bool	active
	Is the drawable active? More...
bool	haveChanged
	Is the object changed since last set? More...
Static Protected Attributes inherited from DrawableObj
static const Camera *	curCamera = 0
	Pointer to current scene camera. More...
static float	backgroundR
static float	backgroundG
static float	backgroundB
static TexturePool *	texPool =0
static bool	useAlphaBlend
static unsigned int	winX
static unsigned int	winY

Detailed Description

A display list generating class.

This class allows for the creation of display lists for openGL objects You can use this class to create a display list which will allow you to reference cached openGL calls already stored in the video card. This can be used to reduce the overhead in the drawing routines

Constructor & Destructor Documentation

DrawDispList()

DrawDispList::DrawDispList

(

)

Constructor.

~DrawDispList()

DrawDispList::~DrawDispList ( )

virtual

Destructor.

References ASSERT.

Member Function Documentation

addDrawable()

void DrawDispList::addDrawable

(

const DrawableObj *

d

)

Add a drawable object - list MUST be active.

References ASSERT, DrawableObj::draw(), BoundCube::expand(), and DrawableObj::getBoundingBox().

Referenced by VisController::updateScene().

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draw()

void DrawDispList::draw ( ) const

virtual

Execute the display list.

Implements DrawableObj.

References ASSERT, and DrawableObj::canSelect.

endList()

bool DrawDispList::endList

(

)

Close the list - this will clear the gl error system.

References ASSERT, and BoundCube::isValid().

Referenced by VisController::updateScene().

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getBoundingBox()

void DrawDispList::getBoundingBox ( BoundCube &  b ) const

inlinevirtual

Get bounding cube.

Implements DrawableObj.

getType()

virtual unsigned int DrawDispList::getType ( ) const

inlinevirtual

Implements DrawableObj.

References DRAW_TYPE_DISPLAYLIST.

startList()

bool DrawDispList::startList

(

bool

execute

)

Set it such that many openGL calls map to the display list.

If "execute" is true, the commands will be excuted after accumulating the display list buffer For a complete list of which calls map to the dispaly list, see the openGL spec, "Display lists"

References ASSERT, and BoundCube::setInverseLimits().

Referenced by VisController::updateScene().

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

• drawables.h
• drawables.cpp