icl::qt::Dragger Struct Reference

Utility class that implements draggable rects on the ChromaWidget surface. More...

#include <Dragger.h>

Classes
struct	Color
	Utility class which helps to convert rgb to RG-Chroma and back. More...

Public Member Functions
	Dragger (const utils::Point32f &p=utils::Point32f::null, float d=0.02, const Color &c=Color(255, 0, 0))
	creates a new Dragger More...
bool	hit (const utils::Point32f &x) const
	returns whether a given relative position is inside the dragger More...
const utils::Rect32f &	rect () const
	returns the draggers relative rect More...
float	dim () const
	returns the current dim variable More...
const utils::Point32f &	pos () const
	returns the current center position More...
const Color &	col () const
	returns the current color More...
void	setColor (float r, float g, float b)
	sets the current color More...
void	setDim (float d)
	sets the current dim More...
void	setPos (const utils::Point32f &x)
	sets the current position (which is clipped to [0,1]) More...
void	move (const utils::Point32f &dist)
	moves the dragger by a given distance More...
void	drag (const utils::Point32f &x)
	makes this dragger "dragged" by the mouse More...
void	dragTo (const utils::Point32f &x)
	once dragged, this function will move the dragger More...
void	drop ()
	drops this dragger, to it is no longer moved by the mouse More...
void	draw (ICLDrawWidget *w) const
	draws this dragger into the given ICLDrawWidget More...
bool	over () const
	returns whether the mouse is currently over this dragger More...
void	setOver (bool val=true)
	sets the internal "over"-variable to indicate, that the mouse is over the dragger More...
bool	dragged () const
	returns whether this dragger is currently dragged More...

Private Attributes
utils::Point32f	p
float	d
utils::Rect32f	r
bool	dr
Color	c
bool	ov
utils::Point32f	dragOffs

Detailed Description

Utility class that implements draggable rects on the ChromaWidget surface.

Constructor & Destructor Documentation

Dragger()

icl::qt::Dragger::Dragger ( const utils::Point32f &  p = utils::Point32f::null, float  d = 0.02, const Color &  c = Color(255,0,0)  )

inline

creates a new Dragger

Parameters

p	initial position in relative coordinates [0,1]
d	relative dimension in each direction (0.1 -> 10% of widget size)
c	color of the dragger

Member Function Documentation

col()

const Color& icl::qt::Dragger::col ( ) const

inline

returns the current color

dim()

float icl::qt::Dragger::dim ( ) const

inline

returns the current dim variable

drag()

void icl::qt::Dragger::drag ( const utils::Point32f &  x )

inline

makes this dragger "dragged" by the mouse

Parameters

x	mouse grip point which is used to calculate the offset to the draggers center called "dragOffs"

dragged()

bool icl::qt::Dragger::dragged ( ) const

inline

returns whether this dragger is currently dragged

dragTo()

void icl::qt::Dragger::dragTo ( const utils::Point32f &  x )

inline

once dragged, this function will move the dragger

The new position is clip( x+dragOffs, [0,1])

Parameters

x	new position (result is clipped to [0,1]

draw()

void icl::qt::Dragger::draw

(

ICLDrawWidget *

w

)

const

draws this dragger into the given ICLDrawWidget

The ICLDrawWidget must be set up before using

w->setImage( chromaSpaceImage );
w->lock();
w->reset();
w->rel(); // !!

MyDragger.draw(w);

w->unlock();
w->update();

Parameters

w	drawing context

drop()

void icl::qt::Dragger::drop ( )

inline

drops this dragger, to it is no longer moved by the mouse

hit()

bool icl::qt::Dragger::hit ( const utils::Point32f &  x ) const

inline

returns whether a given relative position is inside the dragger

move()

void icl::qt::Dragger::move ( const utils::Point32f &  dist )

inline

moves the dragger by a given distance

The resulting position is clipped to [0,1]

Parameters

dist	distance to move

over()

bool icl::qt::Dragger::over ( ) const

inline

returns whether the mouse is currently over this dragger

pos()

const utils::Point32f& icl::qt::Dragger::pos ( ) const

inline

returns the current center position

rect()

const utils::Rect32f& icl::qt::Dragger::rect ( ) const

inline

returns the draggers relative rect

setColor()

void icl::qt::Dragger::setColor ( float  r, float  g, float  b  )

inline

sets the current color

Parameters

r	red value
g	green value
b	blue value

setDim()

void icl::qt::Dragger::setDim ( float  d )

inline

sets the current dim

Parameters

d	new dim value (relative)

setOver()

void icl::qt::Dragger::setOver ( bool  val = true )

inline

sets the internal "over"-variable to indicate, that the mouse is over the dragger

The "over"-variable is used in the draw(..)-function for a nice mouse-over effect

setPos()

void icl::qt::Dragger::setPos ( const utils::Point32f &  x )

inline

sets the current position (which is clipped to [0,1])

Parameters

x	new center position of the dragger

Member Data Documentation

c

Color icl::qt::Dragger::c

private

!< flag to indicate whether this dragger is currently dragged

d

float icl::qt::Dragger::d

private

!< current center position (relative to the parent widgets size)

dr

bool icl::qt::Dragger::dr

private

!< current relative rect of this dragger (p.x-d,p.y-d,2*d,2*d)

dragOffs

utils::Point32f icl::qt::Dragger::dragOffs

private

!< flag to indicate whether this mouse is currently over this dragger

ov

bool icl::qt::Dragger::ov

private

!< current color of this dragger

p

utils::Point32f icl::qt::Dragger::p

private

r

utils::Rect32f icl::qt::Dragger::r

private

!< relative dimension of this dragger in each direction

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

• /Users/alneuman/vm/icl/ICLQt/src/ICLQt/Dragger.h