Utility class to avoid Qt warning when accesing QLabels from differnt Threads. More...

#include <ColorLabel.h>

Inheritance diagram for icl::qt::ColorLabel:

Public Member Functions
	ColorLabel (core::Color4D &color, bool useAlpha, QWidget *parent=0)
	Create a new label with given text and given parent widget. More...

virtual void	paintEvent (QPaintEvent *evt)
	reimplemented drawin function (draw the current text centered) More...

void	setColor (const core::Color &color)
	sets new color rgb More...

void	setColor (const core::Color4D &color)
	sets new color rgba More...

core::Color	getRGB () const
	returns current color More...

core::Color4D	getRGBA () const
	returns current rgba color More...

int	getRed () const
	returns current red value More...

int	getGreen () const
	returns current green value More...

int	getBlue () const
	returns current blue value More...

int	getAlhpa () const
	return current alpha value More...

bool	hasAlpha () const
	returns wheter internal color uses alpha value More...

Public Member Functions inherited from icl::qt::ThreadedUpdatableWidget
	ThreadedUpdatableWidget (QWidget *parent=0)
	Base constructor. More...

void	updateFromOtherThread ()
	call this function to update a widget's UI from an external thread More...

virtual bool	event (QEvent *event)
	automatically called by Qt's event processing mechanism More...

Private Attributes
core::Color4D &	m_color
	shallowly wrapped color More...

bool	m_hasAlpha
	indicator wheter alpha is used More...

QMutex	m_oMutex
	Thread-safety mutex. More...

Detailed Description

Utility class to avoid Qt warning when accesing QLabels from differnt Threads.

QLabels can not be used from different Threads. So if a QLabel is created in in the main thread, it might not be set up to show another text/number from the working thread. As a workaround, the "label" component of the ICL GUI API uses not the original QLabel but this thread-save reimplementation called CompabilityLabel.

Constructor & Destructor Documentation

◆ ColorLabel()

icl::qt::ColorLabel::ColorLabel	(	core::Color4D &	color,
		bool	useAlpha,
		QWidget *	parent = `0`
	)

Create a new label with given text and given parent widget.

Member Function Documentation

◆ getAlhpa()

int icl::qt::ColorLabel::getAlhpa ( ) const

return current alpha value

◆ getBlue()

int icl::qt::ColorLabel::getBlue ( ) const

returns current blue value

◆ getGreen()

int icl::qt::ColorLabel::getGreen ( ) const

returns current green value

◆ getRed()

int icl::qt::ColorLabel::getRed ( ) const

returns current red value

◆ getRGB()

core::Color icl::qt::ColorLabel::getRGB ( ) const

returns current color

◆ getRGBA()

core::Color4D icl::qt::ColorLabel::getRGBA ( ) const

returns current rgba color

◆ hasAlpha()

bool icl::qt::ColorLabel::hasAlpha ( ) const

returns wheter internal color uses alpha value

◆ paintEvent()

virtual void icl::qt::ColorLabel::paintEvent ( QPaintEvent * evt )

virtual

reimplemented drawin function (draw the current text centered)

◆ setColor() [1/2]

void icl::qt::ColorLabel::setColor ( const core::Color & color )

sets new color rgb

◆ setColor() [2/2]

void icl::qt::ColorLabel::setColor ( const core::Color4D & color )

sets new color rgba

Member Data Documentation

◆ m_color

core::Color4D& icl::qt::ColorLabel::m_color

private

shallowly wrapped color

◆ m_hasAlpha

bool icl::qt::ColorLabel::m_hasAlpha