QgsColorBox Class Reference

A color box widget. More...

#include <qgscolorwidgets.h>

Inheritance diagram for QgsColorBox:

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	setComponentValue (int value)
	Alters the widget's color by setting the value for the widget's color component.

Public Member Functions
	QgsColorBox (QWidget *parent=nullptr, ColorComponent component=Value)
	Construct a new color box widget.
	~QgsColorBox () override
void	paintEvent (QPaintEvent *event) override
void	setComponent (ColorComponent component) override
	Sets the color component which the widget controls.
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.
int	componentValue () 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.
int	componentValue (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
int	hue () 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...
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 QPixmap	createDragIcon (const QColor &color)
	Create an icon for dragging colors.
Static Protected Member Functions inherited from QgsColorWidget
static void	alterColor (QColor &color, QgsColorWidget::ColorComponent component, int 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
int	mExplicitHue = 0
	QColor wipes the hue information when it is ambiguous (e.g., for saturation = 0).

Detailed Description

A color box widget.

This widget consists of a two dimensional rectangle filled with color variations, where a different color component varies along both the horizontal and vertical axis.

Definition at line 396 of file qgscolorwidgets.h.

Constructor & Destructor Documentation

QgsColorBox()

QgsColorBox::QgsColorBox	(	QWidget *	parent = nullptr,
		ColorComponent	component = Value
	)

Construct a new color box widget.

Parameters

parent	parent QWidget for the widget
component	constant color component for the widget. The color components which vary along the horizontal and vertical axis are automatically assigned based on this constant color component.

Definition at line 832 of file qgscolorwidgets.cpp.

~QgsColorBox()

QgsColorBox::~QgsColorBox ( )

override

Definition at line 841 of file qgscolorwidgets.cpp.

Member Function Documentation

mouseMoveEvent()

void QgsColorBox::mouseMoveEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 923 of file qgscolorwidgets.cpp.

mousePressEvent()

void QgsColorBox::mousePressEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 932 of file qgscolorwidgets.cpp.

mouseReleaseEvent()

void QgsColorBox::mouseReleaseEvent ( QMouseEvent *  event )

overrideprotected

Definition at line 945 of file qgscolorwidgets.cpp.

paintEvent()

void QgsColorBox::paintEvent ( QPaintEvent *  event )

override

Definition at line 852 of file qgscolorwidgets.cpp.

resizeEvent()

void QgsColorBox::resizeEvent ( QResizeEvent *  event )

overrideprotected

Definition at line 915 of file qgscolorwidgets.cpp.

setColor

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

overrideslot

Definition at line 896 of file qgscolorwidgets.cpp.

setComponent()

void QgsColorBox::setComponent ( const QgsColorWidget::ColorComponent  component )

overridevirtual

Sets the color component which the widget controls.

Parameters

component

color component for widget

See also

component

Reimplemented from QgsColorWidget.

Definition at line 886 of file qgscolorwidgets.cpp.

sizeHint()

QSize QgsColorBox::sizeHint ( ) const

override

Definition at line 846 of file qgscolorwidgets.cpp.

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

• /home/fischer/src/qgis-3.38/src/gui/qgscolorwidgets.h
• /home/fischer/src/qgis-3.38/src/gui/qgscolorwidgets.cpp