Tinkercell::ArrowHeadItem Class Reference

A node graphics item that is used to draw arrow heads on connection items. More...

#include <ConnectionGraphicsItem.h>

Inheritance diagram for Tinkercell::ArrowHeadItem:

Collaboration diagram for Tinkercell::ArrowHeadItem:

List of all members.

Public Types
enum	{ Type = UserType + 6 }
	for enabling dynamic_cast More...
Public Member Functions
	ArrowHeadItem (ConnectionGraphicsItem *c=0)
	constructor -- initializes the angle and connection item
	ArrowHeadItem (const QString &, ConnectionGraphicsItem *c=0)
	construct from file
	ArrowHeadItem (const ArrowHeadItem &)
	copy constructor
virtual void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option=new QStyleOptionGraphicsItem(), QWidget *widget=0)
	paint this arrow item. performs rotation using the angle member.
virtual NodeGraphicsItem *	clone () const
	returns a duplicate of this arrow head
virtual int	type () const
	for enabling dynamic_cast
Static Public Member Functions
static ArrowHeadItem *	cast (QGraphicsItem *)
	cast a graphics item to a node graphics item using qgraphicsitem_cast
Public Attributes
ConnectionGraphicsItem *	connectionItem
	The connection item that this arrow head belongs with.
qreal	angle
	the direction (angle) that the arrow is pointing
Static Public Attributes
static const QString	CLASSNAME = QString("ArrowHeadItem")
	for safe static casting

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Detailed Description

A node graphics item that is used to draw arrow heads on connection items.

Definition at line 60 of file ConnectionGraphicsItem.h.

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Member Enumeration Documentation

anonymous enum

for enabling dynamic_cast

Enumerator:

Type

Definition at line 87 of file ConnectionGraphicsItem.h.

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Constructor & Destructor Documentation

Tinkercell::ArrowHeadItem::ArrowHeadItem

(

ConnectionGraphicsItem *

connection = 0

)

constructor -- initializes the angle and connection item

Constructor: init everything

Definition at line 113 of file ConnectionGraphicsItem.cpp.

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Tinkercell::ArrowHeadItem::ArrowHeadItem	(	const QString &	filename,
		ConnectionGraphicsItem *	connection = 0
	)

construct from file

Constructor: init everything

Definition at line 121 of file ConnectionGraphicsItem.cpp.

Tinkercell::ArrowHeadItem::ArrowHeadItem

(

const ArrowHeadItem &

copy

)

copy constructor

Constructor: init everything

Definition at line 129 of file ConnectionGraphicsItem.cpp.

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Member Function Documentation

ArrowHeadItem * Tinkercell::ArrowHeadItem::cast

(

QGraphicsItem *

q

)

[static]

cast a graphics item to a node graphics item using qgraphicsitem_cast

Parameters:

QGraphicsItem*

graphics item

Returns:

ArrowHeadItem* can be 0 if the cast is invalid

Reimplemented from Tinkercell::NodeGraphicsItem.

Definition at line 141 of file ConnectionGraphicsItem.cpp.

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NodeGraphicsItem * Tinkercell::ArrowHeadItem::clone

(

)

const [virtual]

returns a duplicate of this arrow head

make a copy of this item

Returns:

duplicate arrow head item

Reimplemented from Tinkercell::NodeGraphicsItem.

Definition at line 136 of file ConnectionGraphicsItem.cpp.

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void Tinkercell::ArrowHeadItem::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option = new QStyleOptionGraphicsItem(),
		QWidget *	widget = 0
	)		[virtual]

paint this arrow item. performs rotation using the angle member.

Returns:

void

Reimplemented from Tinkercell::NodeGraphicsItem.

Definition at line 1760 of file ConnectionGraphicsItem.cpp.

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virtual int Tinkercell::ArrowHeadItem::type

(

)

const [inline, virtual]

for enabling dynamic_cast

Reimplemented from Tinkercell::NodeGraphicsItem.

Definition at line 89 of file ConnectionGraphicsItem.h.

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Member Data Documentation

qreal Tinkercell::ArrowHeadItem::angle

the direction (angle) that the arrow is pointing

Definition at line 66 of file ConnectionGraphicsItem.h.

const QString Tinkercell::ArrowHeadItem::CLASSNAME = QString("ArrowHeadItem") [static]

for safe static casting

Reimplemented from Tinkercell::NodeGraphicsItem.

Definition at line 94 of file ConnectionGraphicsItem.h.

ConnectionGraphicsItem* Tinkercell::ArrowHeadItem::connectionItem

The connection item that this arrow head belongs with.

Definition at line 64 of file ConnectionGraphicsItem.h.

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

• ConnectionGraphicsItem.h
• ConnectionGraphicsItem.cpp