NodeVisitor for changing color or alpha of ShapeDrawables. More...

#include <ChangeColorVisitor.h>

Inheritance diagram for ChangeColorVisitor:

Public Member Functions
	ChangeColorVisitor (osg::Vec3 color=osg::Vec3(1.0, 1.0, 1.0))

void	reset ()
	Only resets number of changed drawables (see getNumberOfChangedDrawables()) More...

void	changeOnlyAlpha (bool b)
	Only change alpha value of drawables. More...

void	setColor (osg::Vec4 color)
	Set RGBA color. More...

void	setColor (osg::Vec3 color)
	Only set RGB and keep current alpha value. More...

void	setAlpha (float alpha)
	Set alpha value. More...

virtual void	apply (osg::Geode &geode)
	Visitor implementation goes here. More...

int	getNumberOfChangedDrawables () const
	Return number of changed drawables since last reset() call. More...

void	setChangeBlendState (bool b)
	Allow/Forbid changing the blend state (by default changing blend state is forbidden) More...

Protected Member Functions
void	setBlendState (osg::StateSet *stateSet)
	Enables blending (and sets blendfunc) if m_color alpha component < 1 else disables blending (applies only if changing blend state is allowed, see setChangeBlendState()) More...

Protected Attributes
osg::Vec4	m_color

int	m_numberOfChangedDrawables

bool	m_AlphaOnly

bool	m_dontChangeBlendState

Detailed Description

NodeVisitor for changing color or alpha of ShapeDrawables.

Constructor & Destructor Documentation

ChangeColorVisitor::ChangeColorVisitor ( osg::Vec3 color = osg::Vec3(1.0,1.0,1.0) )

Member Function Documentation

void ChangeColorVisitor::apply ( osg::Geode & geode )

virtual

Visitor implementation goes here.

References m_AlphaOnly, m_color, m_numberOfChangedDrawables, and setBlendState().

void ChangeColorVisitor::changeOnlyAlpha ( bool b )

Only change alpha value of drawables.

References m_AlphaOnly.

Referenced by PhastNode::setAlpha().

int ChangeColorVisitor::getNumberOfChangedDrawables ( ) const

Return number of changed drawables since last reset() call.

References m_numberOfChangedDrawables.

Referenced by PhastNode::setColor().

void ChangeColorVisitor::reset ( )

Only resets number of changed drawables (see getNumberOfChangedDrawables())

References m_numberOfChangedDrawables.

void ChangeColorVisitor::setAlpha ( float alpha )

Set alpha value.

References m_color.

Referenced by PhastNode::setAlpha().

void ChangeColorVisitor::setBlendState ( osg::StateSet * stateSet )

protected

Enables blending (and sets blendfunc) if m_color alpha component < 1 else disables blending (applies only if changing blend state is allowed, see setChangeBlendState())

References m_color, and m_dontChangeBlendState.

Referenced by apply().

void ChangeColorVisitor::setChangeBlendState ( bool b )

inline

Allow/Forbid changing the blend state (by default changing blend state is forbidden)

References m_dontChangeBlendState.

void ChangeColorVisitor::setColor ( osg::Vec4 color )

Set RGBA color.

void ChangeColorVisitor::setColor ( osg::Vec3 color )

Only set RGB and keep current alpha value.