#include <vgrainlineitem.h>

Inheritance diagram for VGrainlineItem:

Collaboration diagram for VGrainlineItem:

Public Types
enum	{ Type = UserType + static_cast<int>(Vis::GrainlineItem) }

Public Types inherited from VPieceItem
enum	MoveType { NotMovable = 0x0 , IsRotatable = 0x1 , IsResizable = 0x2 , IsMovable = 0x4 , AllModifications = IsRotatable \| IsResizable \| IsMovable , Error = 0x8 }

enum	{ Type = UserType + static_cast<int>(Vis::PieceItem) }

Signals
void	itemResized (qreal dLength)

void	itemRotated (qreal dRot, const QPointF &ptNewPos)

Signals inherited from VPieceItem
void	itemMoved (const QPointF &ptPos)

Public Member Functions
	VGrainlineItem (QGraphicsItem *pParent=nullptr)
	VGrainlineItem::VGrainlineItem constructor. More...

virtual	~VGrainlineItem () Q_DECL_EQ_DEFAULT

virtual QPainterPath	shape () const Q_DECL_OVERRIDE

virtual void	paint (QPainter pP, const QStyleOptionGraphicsItem pOption, QWidget *pWidget) Q_DECL_OVERRIDE
	VGrainlineItem::paint paints the item content. More...

void	UpdateGeometry (const QPointF &ptPos, qreal dRotation, qreal dLength, ArrowType eAT)
	VGrainlineItem::UpdateGeometry updates the item with grainline parameters. More...

virtual int	type () const Q_DECL_OVERRIDE

bool	isContained (const QPointF &pt, qreal dRot, qreal &dX, qreal &dY) const
	VGrainlineItem::isContained checks, if both ends of the grainline, starting at pt, are contained in parent widget. More...

Public Member Functions inherited from VPieceItem
	VPieceItem (QGraphicsItem *pParent=nullptr)

virtual	~VPieceItem ()

virtual QRectF	boundingRect () const Q_DECL_OVERRIDE
	boundingRect returns the item bounding box More...

void	Reset ()
	Reset resets the item, putting the mode and z coordinate to normal and redraws it. More...

bool	IsIdle () const
	IsIdle returns the idle flag. More...

VPieceItem::MoveTypes	GetMoveType () const

void	SetMoveType (const VPieceItem::MoveTypes &moveType)

Protected Member Functions
virtual void	mousePressEvent (QGraphicsSceneMouseEvent *pME) Q_DECL_OVERRIDE
	VGrainlineItem::mousePressEvent handles left button mouse press events. More...

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *pME) Q_DECL_OVERRIDE
	VGrainlineItem::mouseMoveEvent handles mouse move events, making sure that the item is moved properly. More...

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *pME) Q_DECL_OVERRIDE
	VGrainlineItem::mouseReleaseEvent handles mouse release events and emits the proper signal if the item was moved. More...

virtual void	hoverEnterEvent (QGraphicsSceneHoverEvent *pME) Q_DECL_OVERRIDE

virtual void	hoverLeaveEvent (QGraphicsSceneHoverEvent *pME) Q_DECL_OVERRIDE

virtual void	Update () Q_DECL_OVERRIDE
	VGrainlineItem::Update updates the item. More...

void	UpdateRectangle ()
	VGrainlineItem::UpdateRectangle updates the polygon for the box around active item and the bounding rectangle. More...

virtual double	GetAngle (const QPointF &pt) const Q_DECL_OVERRIDE
	GetAngle calculates the angle between the line, which goes from rotation center to pt and x axis. More...

QPointF	Rotate (const QPointF &pt, const QPointF &ptCenter, qreal dAng) const
	VGrainlineItem::Rotate rotates point pt around ptCenter by angle dAng [rad] and returns the resulting point. More...

QPointF	GetInsideCorner (int i, qreal dDist) const
	VGrainlineItem::GetInsideCorner calculates a point inside the bounding polygon, dDist away of i-th point in each direction. More...

Private Member Functions
qreal	GetScale () const
	GetScale gets the scale for keeping the arrows of constant size. More...

QLineF	MainLine () const

QPolygonF	FirstArrow (qreal dArrLen) const

QPolygonF	SecondArrow (qreal dArrLen) const

QPainterPath	MainShape () const

void	allUserModifications (const QPointF &pos)

void	userRotateAndMove ()

void	userMoveAndResize (const QPointF &pos)

void	UpdatePolyResize ()

Private Attributes
qreal	m_dRotation

qreal	m_dStartRotation

qreal	m_dLength

QPolygonF	m_polyBound

QPointF	m_ptStartPos

QPointF	m_ptStartMove

qreal	m_dScale

QPolygonF	m_polyResize

qreal	m_dStartLength

QPointF	m_ptStart

QPointF	m_ptFinish

QPointF	m_ptCenter

qreal	m_dAngle

ArrowType	m_eArrowType

qreal	m_penWidth

Additional Inherited Members
Protected Types inherited from VPieceItem
enum	Mode { mNormal , mMove , mResize , mRotate }

Protected Attributes inherited from VPieceItem
QRectF	m_rectBoundingBox

Mode	m_eMode

bool	m_bReleased

QPointF	m_ptRotCenter

VPieceItem::MoveTypes	m_moveType

qreal	m_inactiveZ

Detailed Description

Definition at line 36 of file vgrainlineitem.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
Type

Definition at line 49 of file vgrainlineitem.h.

Constructor & Destructor Documentation

◆ VGrainlineItem()

VGrainlineItem::VGrainlineItem ( QGraphicsItem * painterarent = nullptr )

explicit

VGrainlineItem::VGrainlineItem constructor.

Parameters

painterarent pointer to the parent item

Definition at line 59 of file vgrainlineitem.cpp.

References atBoth, VPieceItem::m_inactiveZ, VPieceItem::Reset(), and UpdateRectangle().

◆ ~VGrainlineItem()

virtual VGrainlineItem::~VGrainlineItem ( )

virtual

Member Function Documentation

◆ allUserModifications()

void VGrainlineItem::allUserModifications ( const QPointF & pos )

private

Definition at line 706 of file vgrainlineitem.cpp.

References cursorArrowCloseHand, VPieceItem::m_eMode, VPieceItem::mRotate, SetItemOverrideCursor(), and userMoveAndResize().

Referenced by mousePressEvent().

◆ FirstArrow()

QPolygonF VGrainlineItem::FirstArrow ( qreal dArrLen ) const

private

Definition at line 644 of file vgrainlineitem.cpp.

References ARROW_ANGLE, m_dRotation, and MainLine().

Referenced by MainShape(), and paint().

◆ GetAngle()

double VGrainlineItem::GetAngle ( const QPointF & pt ) const

protectedvirtual

GetAngle calculates the angle between the line, which goes from rotation center to pt and x axis.

Parameters

pt	point of interest

Returns: the angle between line from rotation center and point of interest and x axis

Reimplemented from VPieceItem.

Definition at line 569 of file vgrainlineitem.cpp.

References VPieceItem::GetAngle().

Referenced by mouseMoveEvent(), and mousePressEvent().

◆ GetInsideCorner()

QPointF VGrainlineItem::GetInsideCorner	(	int	i,
		qreal	dDist
	)		const

protected

VGrainlineItem::GetInsideCorner calculates a point inside the bounding polygon, dDist away of i-th point in each direction.

Parameters

i	index of corner
dDist	distance

Returns: resulting point

Definition at line 601 of file vgrainlineitem.cpp.

References m_polyBound.

◆ GetScale()

qreal VGrainlineItem::GetScale ( ) const

private

GetScale gets the scale for keeping the arrows of constant size.

Definition at line 616 of file vgrainlineitem.cpp.

Referenced by MainShape(), and paint().

◆ hoverEnterEvent()

void VGrainlineItem::hoverEnterEvent ( QGraphicsSceneHoverEvent * pME )

protectedvirtual

Definition at line 516 of file vgrainlineitem.cpp.

References m_penWidth.

◆ hoverLeaveEvent()

void VGrainlineItem::hoverLeaveEvent ( QGraphicsSceneHoverEvent * pME )

protectedvirtual

Definition at line 523 of file vgrainlineitem.cpp.

References m_penWidth.

◆ isContained()

bool VGrainlineItem::isContained	(	const QPointF &	pt,
		qreal	dRot,
		qreal &	dX,
		qreal &	dY
	)		const

VGrainlineItem::isContained checks, if both ends of the grainline, starting at pt, are contained in parent widget.

Parameters

pt	starting point of the grainline.
dRot	rotation of the grainline in [rad]
dX	horizontal translation needed to put the arrow inside parent item
dY	vertical translation needed to put the arrow inside parent item