DragController Class Reference

Auxiliary class to control dragger speed. The idea is that slowly moving the mouse forces the dragger to move only one inl/crl/z per (few) pixel(s), while moving it fast can have it cover many lines per pixel. More...

Public Member Functions
	DragController ()
	~DragController ()
void	init (const Coord &mousepos, double scalefactor=1.0, const Coord3 &dragdir=Coord3(0.0, 0.0, 0.0))
void	setFastMaxDragToMouseRatio (float distanceperpixel)
float	getFastMaxDragToMouseRatio () const
void	setSlowMaxDragToMouseRatio (float distanceperpixel)
float	getSlowMaxDragToMouseRatio () const
void	setFastMinDragToMouseRatio (float distanceperpixel)
float	getFastMinDragToMouseRatio () const
void	setSlowMinDragToMouseRatio (float distanceperpixel)
float	getSlowMinDragToMouseRatio () const
void	setFastMouseSpeed (float pixelspersecond)
float	getFastMouseSpeed () const
void	setSlowMouseSpeed (float pixelspersecond)
float	getSlowMouseSpeed () const
void	setLinearBackDragFrac (float fraction)
float	getLinearBackDragFrac () const
void	transform (double &dragval, const Coord &mousepos, double maxdragdist=mUdf(double))
void	transform (Coord3 &dragvec, const Coord &mousepos, double maxdragdist=mUdf(double))
void	dragInScreenSpace (bool fromstart, const Coord &projvec)

Protected Member Functions
void	reInit (const Coord &mousepos)
void	manageScreenDragging (double &dragval, const Coord &mousepos)
double	absTransform (double dragval, const Coord &mousepos, double maxdragdist=mUdf(double))

Protected Attributes
float	fastmaxdragtomouseratio_
float	slowmaxdragtomouseratio_
float	fastmindragtomouseratio_
float	slowmindragtomouseratio_
float	fastmousespeed_
float	slowmousespeed_
float	linearbackdragfrac_
Coord	initmousepos_
Coord3	dragdir_
int	prevdragtime_
bool	screendragmode_
float	screendragfactor_
Coord	screendragprojvec_
Coord	prevmousepos_
double	prevdragval_
double	prevtransval_
double	maxdragval_
int	dragsign_
double	scalefactor_

Detailed Description

Auxiliary class to control dragger speed. The idea is that slowly moving the mouse forces the dragger to move only one inl/crl/z per (few) pixel(s), while moving it fast can have it cover many lines per pixel.

Constructor & Destructor Documentation

DragController::DragController

(

)

DragController::~DragController

(

)

Member Function Documentation

double DragController::absTransform ( double  dragval, const Coord &  mousepos, double  maxdragdist = mUdf(double)  )

protected

void DragController::dragInScreenSpace	(	bool	fromstart,
		const Coord &	projvec
	)

float DragController::getFastMaxDragToMouseRatio

(

)

const

float DragController::getFastMinDragToMouseRatio

(

)

const

float DragController::getFastMouseSpeed

(

)

const

float DragController::getLinearBackDragFrac

(

)

const

If moving back towards initial position, 'fraction' defines where the dragger starts acting linear to reach its origin at the same time as the mouse pointer.

float DragController::getSlowMaxDragToMouseRatio

(

)

const

float DragController::getSlowMinDragToMouseRatio

(

)

const

float DragController::getSlowMouseSpeed

(

)

const

void DragController::init	(	const Coord &	mousepos,
		double	scalefactor = 1.0,
		const Coord3 &	dragdir = Coord3(0.0, 0.0, 0.0)
	)

void DragController::manageScreenDragging ( double &  dragval, const Coord &  mousepos  )

protected

void DragController::reInit ( const Coord &  mousepos )

protected

void DragController::setFastMaxDragToMouseRatio

(

float

distanceperpixel

)

void DragController::setFastMinDragToMouseRatio

(

float

distanceperpixel

)

void DragController::setFastMouseSpeed

(

float

pixelspersecond

)

void DragController::setLinearBackDragFrac

(

float

fraction

)

void DragController::setSlowMaxDragToMouseRatio

(

float

distanceperpixel

)

void DragController::setSlowMinDragToMouseRatio

(

float

distanceperpixel

)

void DragController::setSlowMouseSpeed

(

float

pixelspersecond

)

void DragController::transform	(	double &	dragval,
		const Coord &	mousepos,
		double	maxdragdist = mUdf(double)
	)

void DragController::transform	(	Coord3 &	dragvec,
		const Coord &	mousepos,
		double	maxdragdist = mUdf(double)
	)

Member Data Documentation

Coord3 DragController::dragdir_

protected

int DragController::dragsign_

protected

float DragController::fastmaxdragtomouseratio_

protected

float DragController::fastmindragtomouseratio_

protected

float DragController::fastmousespeed_

protected

Coord DragController::initmousepos_

protected

float DragController::linearbackdragfrac_

protected

double DragController::maxdragval_

protected

int DragController::prevdragtime_

protected

double DragController::prevdragval_

protected

Coord DragController::prevmousepos_

protected

double DragController::prevtransval_

protected

double DragController::scalefactor_

protected

float DragController::screendragfactor_

protected

bool DragController::screendragmode_

protected

Coord DragController::screendragprojvec_

protected

float DragController::slowmaxdragtomouseratio_

protected

float DragController::slowmindragtomouseratio_

protected

float DragController::slowmousespeed_

protected