QmitkPopupColorChooser Class Reference

A frameless popup widget for choosing colors from an HSV gradient. More...

#include <QmitkColorPropertyEditor.h>

Inheritance diagram for QmitkPopupColorChooser:

Collaboration diagram for QmitkPopupColorChooser:

Signals
void	colorSelected (QColor color)
	Emitted when the user moves the mouse over a color or releases the mouse. More...

Public Member Functions
	QmitkPopupColorChooser (QWidget *parent=nullptr, unsigned int steps=16, unsigned int size=150)
	Construct the popup color chooser. More...
	~QmitkPopupColorChooser () override
	Destructor. More...
void	setSteps (int steps)
	Set the number of discrete steps for the color gradient. More...
virtual void	popup (QWidget *parent, const QPoint &point, const mitk::Color *color=nullptr)
	Show the popup at the given position. More...

Protected Member Functions
void	keyReleaseEvent (QKeyEvent *) override
void	mouseMoveEvent (QMouseEvent *) override
void	mouseReleaseEvent (QMouseEvent *) override
void	closeEvent (QCloseEvent *) override
void	paintEvent (QPaintEvent *) override
void	drawGradient (QPainter *p)

Detailed Description

A frameless popup widget for choosing colors from an HSV gradient.

Displays a rectangular HSV color gradient that the user can click to select a color. The widget grabs mouse and keyboard input when shown, and closes on mouse release or key press. If a key is pressed, the original color is restored.

See also

QmitkColorPropertyEditor

Definition at line 32 of file QmitkColorPropertyEditor.h.

Constructor & Destructor Documentation

QmitkPopupColorChooser()

QmitkPopupColorChooser::QmitkPopupColorChooser	(	QWidget *	parent = nullptr,
		unsigned int	steps = 16,
		unsigned int	size = 150
	)

Construct the popup color chooser.

Parameters

[in]	parent	The parent widget.
[in]	steps	Number of discrete color steps in the gradient.
[in]	size	Width and height of the popup in pixels.

~QmitkPopupColorChooser()

QmitkPopupColorChooser::~QmitkPopupColorChooser ( )

override

Destructor.

Member Function Documentation

closeEvent()

void QmitkPopupColorChooser::closeEvent ( QCloseEvent *  )

overrideprotected

colorSelected

void QmitkPopupColorChooser::colorSelected ( QColor  color )

signal

Emitted when the user moves the mouse over a color or releases the mouse.

Parameters

[in]

color

The selected QColor.

drawGradient()

void QmitkPopupColorChooser::drawGradient ( QPainter *  p )

protected

keyReleaseEvent()

void QmitkPopupColorChooser::keyReleaseEvent ( QKeyEvent *  )

overrideprotected

mouseMoveEvent()

void QmitkPopupColorChooser::mouseMoveEvent ( QMouseEvent *  )

overrideprotected

mouseReleaseEvent()

void QmitkPopupColorChooser::mouseReleaseEvent ( QMouseEvent *  )

overrideprotected

paintEvent()

void QmitkPopupColorChooser::paintEvent ( QPaintEvent *  )

overrideprotected

popup()

virtual void QmitkPopupColorChooser::popup ( QWidget *  parent, const QPoint &  point, const mitk::Color *  color = nullptr  )

virtual

Show the popup at the given position.

If a color is provided, the popup is positioned so that the matching color is under the cursor.

Parameters

[in]	parent	The widget that triggered the popup.
[in]	point	The position in parent coordinates.
[in]	color	Optional initial color to center the popup on.

setSteps()

void QmitkPopupColorChooser::setSteps

(

int

steps

)

Set the number of discrete steps for the color gradient.

Parameters

[in]

steps

Number of gradient steps.

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

• QmitkColorPropertyEditor.h