A control point for the color function. More...

#include <WTransferFunctionColorPoint.h>

Inheritance diagram for WTransferFunctionColorPoint:

Collaboration diagram for WTransferFunctionColorPoint:

Public Types
typedef QGraphicsObject	BaseClass
	type of our base class More...

Public Slots
void	colorSelected (const QColor &color)
	Called by the color dialog every time the user changes the color. More...

Public Member Functions
	WTransferFunctionColorPoint (WTransferFunctionWidget *parent=0x0)
	Default constructor. More...

virtual	~WTransferFunctionColorPoint ()
	Default destructor. More...

WTransferFunctionColorPoint *	getLeft () const
	Returns the item left of the this item. More...

WTransferFunctionColorPoint *	getRight () const
	Returns the item right of this item. More...

void	setLeft (WTransferFunctionColorPoint *left)
	Set the item left of us. More...

void	setRight (WTransferFunctionColorPoint *right)
	Set the item right of us. More...

QRectF	boundingRect () const
	The bounding rectangle used for paint and click events. More...

virtual void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget=0x0)
	Paint the handle and additional item hints. More...

QColor	getColor () const

virtual void	dragEnterEvent (QGraphicsSceneDragDropEvent *event)
	Drag enter implementation for items that contain a color. More...

virtual void	dropEvent (QGraphicsSceneDragDropEvent *event)
	Drop implementation for items that contain a color. More...

void	contextMenuEvent (QGraphicsSceneContextMenuEvent *event)
	Handler for context menu envents. More...

Protected Member Functions
void	clampToRectangle (const QRectF &rectangle)
	Helper for item changed. More...

void	clampToLeftAndRight ()
	Helper for item changed. More...

QVariant	itemChange (GraphicsItemChange change, const QVariant &value)
	Handles change notifications. More...

void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)
	Handles mouse move events. More...

void	mousePressEvent (QGraphicsSceneMouseEvent *event)
	Handles press move events. More...

void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
	Handles mouse move events. More...

void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)
	Handles mouse double click events by opening a color selector if the item is clicked. More...

void	showColorPicker ()
	Show the color picker dialog. More...

Private Attributes
double	radius
	the radius used for paining of the handle More...

WTransferFunctionColorPoint *	left
	the entry left of this entry More...

WTransferFunctionColorPoint *	right
	the entry to the right of our entry More...

WTransferFunctionWidget *	_parent
	the parent widget More...

QColor	color
	the color entry More...

Detailed Description

A control point for the color function.

Internals: The point has links to its left and right neighbors (double-linked list).

Definition at line 41 of file WTransferFunctionColorPoint.h.

Member Typedef Documentation

◆ BaseClass

typedef QGraphicsObject WTransferFunctionColorPoint::BaseClass

type of our base class

Definition at line 47 of file WTransferFunctionColorPoint.h.

Constructor & Destructor Documentation

◆ WTransferFunctionColorPoint()

WTransferFunctionColorPoint::WTransferFunctionColorPoint ( WTransferFunctionWidget * parent = 0x0 )

explicit

Default constructor.

Parameters

parent the parent widget

Definition at line 38 of file WTransferFunctionColorPoint.cpp.

◆ ~WTransferFunctionColorPoint()

WTransferFunctionColorPoint::~WTransferFunctionColorPoint ( )

virtual

Default destructor.

Definition at line 58 of file WTransferFunctionColorPoint.cpp.

Member Function Documentation

◆ boundingRect()

QRectF WTransferFunctionColorPoint::boundingRect ( ) const

The bounding rectangle used for paint and click events.

Returns: the bounding rectangle

Definition at line 82 of file WTransferFunctionColorPoint.cpp.

References radius.

◆ clampToLeftAndRight()

void WTransferFunctionColorPoint::clampToLeftAndRight ( )

protected

Helper for item changed.

Definition at line 243 of file WTransferFunctionColorPoint.cpp.

References left, and right.

Referenced by mouseMoveEvent().

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◆ clampToRectangle()

void WTransferFunctionColorPoint::clampToRectangle ( const QRectF & rectangle )

protected

Helper for item changed.

Parameters

rectangle a rectangle

Definition at line 261 of file WTransferFunctionColorPoint.cpp.

Referenced by mouseMoveEvent().

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◆ colorSelected

void WTransferFunctionColorPoint::colorSelected ( const QColor & color )

slot

Called by the color dialog every time the user changes the color.

Parameters

color the new color

Definition at line 189 of file WTransferFunctionColorPoint.cpp.

References _parent, color, and WTransferFunctionWidget::dataChanged().

Referenced by WTransferFunctionWidget::insertColor(), and showColorPicker().

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◆ contextMenuEvent()

void WTransferFunctionColorPoint::contextMenuEvent ( QGraphicsSceneContextMenuEvent * event )

Handler for context menu envents.

Currently disabled because it conflicts with other mouse interactions.

Parameters

event the event to hanlde

Definition at line 305 of file WTransferFunctionColorPoint.cpp.

References showColorPicker().

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◆ dragEnterEvent()

void WTransferFunctionColorPoint::dragEnterEvent ( QGraphicsSceneDragDropEvent * event )

virtual

Drag enter implementation for items that contain a color.

Parameters

event the event to handle

Definition at line 285 of file WTransferFunctionColorPoint.cpp.

◆ dropEvent()

void WTransferFunctionColorPoint::dropEvent ( QGraphicsSceneDragDropEvent * event )

virtual

Drop implementation for items that contain a color.

Parameters

event the event to handle

Definition at line 293 of file WTransferFunctionColorPoint.cpp.

References _parent, color, and WTransferFunctionWidget::dataChanged().

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◆ getColor()

QColor WTransferFunctionColorPoint::getColor ( ) const

Returns: the color of the entry

Definition at line 280 of file WTransferFunctionColorPoint.cpp.

References color.

Referenced by WTransferFunctionWidget::insertColor(), WTransferFunctionWidget::sample1DTransferFunction(), WTransferFunctionWidget::sample1DTransferFunctionForDisplay(), and WTransferFunctionWidget::updateTransferFunction().

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◆ getLeft()

WTransferFunctionColorPoint * WTransferFunctionColorPoint::getLeft ( ) const

Returns the item left of the this item.

Returns: the item left of us

Definition at line 67 of file WTransferFunctionColorPoint.cpp.

References left.

Referenced by WTransferFunctionWidget::keyPressEvent().

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◆ getRight()

WTransferFunctionColorPoint * WTransferFunctionColorPoint::getRight ( ) const

Returns the item right of this item.

Returns: the item right of us

Definition at line 77 of file WTransferFunctionColorPoint.cpp.

References right.

Referenced by WTransferFunctionWidget::clearTransferFunction(), WTransferFunctionWidget::insertColor(), WTransferFunctionWidget::keyPressEvent(), WTransferFunctionWidget::sample1DTransferFunction(), WTransferFunctionWidget::sample1DTransferFunctionForDisplay(), and WTransferFunctionWidget::updateTransferFunction().

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◆ itemChange()

QVariant WTransferFunctionColorPoint::itemChange	(	GraphicsItemChange	change,
		const QVariant &	value
	)

protected

Handles change notifications.

Parameters

change	the requrested change
value	the requested value

Returns: the proposed value

Definition at line 140 of file WTransferFunctionColorPoint.cpp.

References _parent, color, and WTransferFunctionWidget::dataChanged().

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◆ mouseDoubleClickEvent()

void WTransferFunctionColorPoint::mouseDoubleClickEvent ( QGraphicsSceneMouseEvent * event )

protected

Handles mouse double click events by opening a color selector if the item is clicked.

Parameters

event the event

Definition at line 182 of file WTransferFunctionColorPoint.cpp.

References showColorPicker().

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◆ mouseMoveEvent()

void WTransferFunctionColorPoint::mouseMoveEvent ( QGraphicsSceneMouseEvent * event )

protected

Handles mouse move events.

Parameters

event the event

Definition at line 200 of file WTransferFunctionColorPoint.cpp.

References clampToLeftAndRight(), clampToRectangle(), left, and right.

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◆ mousePressEvent()

void WTransferFunctionColorPoint::mousePressEvent ( QGraphicsSceneMouseEvent * event )

protected

Handles press move events.

Parameters

event the event

Definition at line 230 of file WTransferFunctionColorPoint.cpp.

References _parent, and WTransferFunctionWidget::setCurrentColor().

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◆ mouseReleaseEvent()

void WTransferFunctionColorPoint::mouseReleaseEvent ( QGraphicsSceneMouseEvent * event )

protected

Handles mouse move events.

Parameters

event the event

Definition at line 237 of file WTransferFunctionColorPoint.cpp.

◆ paint()

void WTransferFunctionColorPoint::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget = `0x0`
	)

virtual

Paint the handle and additional item hints.

Parameters

painter	the painter used
option	the paint options used
widget	the widget used for painting

Definition at line 89 of file WTransferFunctionColorPoint.cpp.

References color, left, radius, and right.

◆ setLeft()

void WTransferFunctionColorPoint::setLeft ( WTransferFunctionColorPoint * left )

Set the item left of us.

Parameters

left	the item left of us

Definition at line 62 of file WTransferFunctionColorPoint.cpp.

References left.

Referenced by WTransferFunctionWidget::insertColor(), and WTransferFunctionWidget::keyPressEvent().

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◆ setRight()

void WTransferFunctionColorPoint::setRight ( WTransferFunctionColorPoint * right )

Set the item right of us.

Parameters

right the item right of us

Definition at line 72 of file WTransferFunctionColorPoint.cpp.

References right.

Referenced by WTransferFunctionWidget::insertColor(), and WTransferFunctionWidget::keyPressEvent().

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◆ showColorPicker()

void WTransferFunctionColorPoint::showColorPicker ( )

protected

Show the color picker dialog.

Definition at line 330 of file WTransferFunctionColorPoint.cpp.

References color, and colorSelected().

Referenced by contextMenuEvent(), and mouseDoubleClickEvent().

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Member Data Documentation

◆ _parent

WTransferFunctionWidget* WTransferFunctionColorPoint::_parent

private

the parent widget

Definition at line 204 of file WTransferFunctionColorPoint.h.

Referenced by colorSelected(), dropEvent(), itemChange(), and mousePressEvent().

◆ color

QColor WTransferFunctionColorPoint::color

private

the color entry

Definition at line 207 of file WTransferFunctionColorPoint.h.

Referenced by colorSelected(), dropEvent(), getColor(), itemChange(), paint(), and showColorPicker().

◆ left

WTransferFunctionColorPoint* WTransferFunctionColorPoint::left

private

the entry left of this entry

Definition at line 198 of file WTransferFunctionColorPoint.h.

Referenced by clampToLeftAndRight(), getLeft(), mouseMoveEvent(), paint(), and setLeft().

◆ radius

double WTransferFunctionColorPoint::radius

private

the radius used for paining of the handle

Definition at line 195 of file WTransferFunctionColorPoint.h.

Referenced by boundingRect(), and paint().

◆ right

WTransferFunctionColorPoint* WTransferFunctionColorPoint::right

private

the entry to the right of our entry

Definition at line 201 of file WTransferFunctionColorPoint.h.

Referenced by clampToLeftAndRight(), getRight(), mouseMoveEvent(), paint(), and setRight().

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

Public Types

Public Slots

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ BaseClass

Constructor & Destructor Documentation

◆ WTransferFunctionColorPoint()

◆ ~WTransferFunctionColorPoint()

Member Function Documentation

◆ boundingRect()

◆ clampToLeftAndRight()

◆ clampToRectangle()

◆ colorSelected

◆ contextMenuEvent()

◆ dragEnterEvent()

◆ dropEvent()

◆ getColor()

◆ getLeft()

◆ getRight()

◆ itemChange()

◆ mouseDoubleClickEvent()

◆ mouseMoveEvent()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ paint()

◆ setLeft()

◆ setRight()

◆ showColorPicker()

Member Data Documentation

◆ _parent

◆ color

◆ left

◆ radius

◆ right