QgsColorWheel Class Reference

A color wheel widget. More...

#include <qgscolorwidgets.h>

Inheritance diagram for QgsColorWheel:

Public Slots
void	setColor (const QColor &color, bool emitSignals=false) override
Public Slots inherited from QgsColorWidget
virtual void	setColor (const QColor &color, bool emitSignals=false)
	Sets the color for the widget.
virtual void	setComponent (QgsColorWidget::ColorComponent component)
	Sets the color component which the widget controls.
virtual Q_DECL_DEPRECATED void	setComponentValue (int value)
	Alters the widget's color by setting the value for the widget's color component.
virtual void	setComponentValueF (float value)
	Alters the widget's color by setting the value for the widget's color component.

Public Member Functions
	QgsColorWheel (QWidget *parent=nullptr)
	Constructs a new color wheel widget.
	~QgsColorWheel () override
void	paintEvent (QPaintEvent *event) override
QSize	sizeHint () const override
Public Member Functions inherited from QgsColorWidget
	QgsColorWidget (QWidget *parent=nullptr, ColorComponent component=Multiple)
	Construct a new color widget.
QColor	color () const
	Returns the current color for the widget.
ColorComponent	component () const
	Returns the color component which the widget controls.
Q_DECL_DEPRECATED int	componentValue () const
	Returns the current value of the widget's color component.
float	componentValueF () const
	Returns the current value of the widget's color component.

Protected Member Functions
void	mouseMoveEvent (QMouseEvent *event) override
void	mousePressEvent (QMouseEvent *event) override
void	mouseReleaseEvent (QMouseEvent *event) override
void	resizeEvent (QResizeEvent *event) override
Protected Member Functions inherited from QgsColorWidget
QColor::Spec	colorSpec () const
	Returns color widget type of color, either RGB, HSV, CMYK, or Invalid if this component value is Multiple or Alpha.
int	componentRange () const
	Returns the range of valid values for the color widget's component.
Q_DECL_DEPRECATED int	componentValue (ColorComponent component) const
	Returns the value of a component of the widget's current color.
float	componentValueF (ColorComponent component) const
	Returns the value of a component of the widget's current color.
void	dragEnterEvent (QDragEnterEvent *e) override
void	dropEvent (QDropEvent *e) override
Q_DECL_DEPRECATED int	hue () const
	Returns the hue for the widget.
float	hueF () const
	Returns the hue for the widget.
void	mouseMoveEvent (QMouseEvent *e) override
void	mousePressEvent (QMouseEvent *e) override
void	mouseReleaseEvent (QMouseEvent *e) override

Additional Inherited Members
Public Types inherited from QgsColorWidget
enum	ColorComponent {   Multiple = 0 , Red , Green , Blue ,   Hue , Saturation , Value , Alpha ,   Cyan , Magenta , Yellow , Black }
	Specifies the color component which the widget alters. More...
enum class	ComponentUnit { Scaled0to255 , Percent , Degree }
	Specified the color component unit. More...
Signals inherited from QgsColorWidget
void	colorChanged (const QColor &color)
	Emitted when the widget's color changes.
void	hovered ()
	Emitted when mouse hovers over widget.
Static Public Member Functions inherited from QgsColorWidget
static ComponentUnit	componentUnit (ColorComponent component)
	Returns color component unit.
static QPixmap	createDragIcon (const QColor &color)
	Create an icon for dragging colors.
Static Protected Member Functions inherited from QgsColorWidget
static Q_DECL_DEPRECATED void	alterColor (QColor &color, QgsColorWidget::ColorComponent component, int newValue)
	Alters a color by modifying the value of a specific color component.
static void	alterColorF (QColor &color, QgsColorWidget::ColorComponent component, float newValue)
	Alters a color by modifying the value of a specific color component.
static QColor::Spec	colorSpec (QgsColorWidget::ColorComponent component)
	Returns component type of color, either RGB, HSV, CMYK, or Invalid if component value is Multiple or Alpha.
static int	componentRange (ColorComponent component)
	Returns the range of valid values a color component.
static const QPixmap &	transparentBackground ()
	Generates a checkboard pattern pixmap for use as a background to transparent colors.
Protected Attributes inherited from QgsColorWidget
ColorComponent	mComponent
QColor	mCurrentColor
float	mExplicitHue = 0
	QColor wipes the hue information when it is ambiguous (e.g., for saturation = 0).

Detailed Description

A color wheel widget.

This widget consists of an outer ring which allows for hue selection, and an inner rotating triangle which allows for saturation and value selection.

Definition at line 374 of file qgscolorwidgets.h.

Constructor & Destructor Documentation

QgsColorWheel()

QgsColorWheel::QgsColorWheel

(

QWidget *

parent = nullptr

)

Constructs a new color wheel widget.

Parameters

parent

parent QWidget for the widget

Definition at line 452 of file qgscolorwidgets.cpp.

~QgsColorWheel()

QgsColorWheel::~QgsColorWheel ( )

overridedefault

Member Function Documentation

mouseMoveEvent()

void QgsColorWheel::mouseMoveEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 692 of file qgscolorwidgets.cpp.

mousePressEvent()

void QgsColorWheel::mousePressEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 700 of file qgscolorwidgets.cpp.

mouseReleaseEvent()

void QgsColorWheel::mouseReleaseEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 727 of file qgscolorwidgets.cpp.

paintEvent()

void QgsColorWheel::paintEvent ( QPaintEvent *  event )

override

Definition at line 476 of file qgscolorwidgets.cpp.

resizeEvent()

void QgsColorWheel::resizeEvent ( QResizeEvent *  event )

overrideprotected

Definition at line 585 of file qgscolorwidgets.cpp.

setColor

void QgsColorWheel::setColor ( const QColor &  color, bool  emitSignals = false  )

overrideslot

Definition at line 555 of file qgscolorwidgets.cpp.

sizeHint()

QSize QgsColorWheel::sizeHint ( ) const

override

Definition at line 470 of file qgscolorwidgets.cpp.

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

• /build/qgis-3.40.0+99sid/src/gui/qgscolorwidgets.h
• /build/qgis-3.40.0+99sid/src/gui/qgscolorwidgets.cpp