NodeEditorConnection Class Reference

Inheritance diagram for NodeEditorConnection:

Collaboration diagram for NodeEditorConnection:

Public Member Functions
	NodeEditorConnection (QGraphicsItem *parent=0, QGraphicsScene *scene=0)
virtual	~NodeEditorConnection ()
ConnectableView *	getChildView ()
	returns child view, i.e. the view which owns output port of given connection More...
ConnectableView *	getParentView ()
	returns parent view, i.e. the view which owns input port of given connection More...
NodeEditorPort *	inputPort ()
NodeEditorPort *	outputPort ()
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
NodeEditorPort *	port1 () const
NodeEditorPort *	port2 () const
void	setPort1 (NodeEditorPort *p)
void	setPort2 (NodeEditorPort *p)
void	setPos1 (const QPointF &p)
void	setPos2 (const QPointF &p)
int	type () const
void	updatePath ()
void	updatePosFromPorts ()

Private Attributes
NodeEditorPort *	m_port1
NodeEditorPort *	m_port2
QPointF	pos1
QPointF	pos2

Detailed Description

Definition at line 30 of file NodeEditorConnection.h.

Constructor & Destructor Documentation

NodeEditorConnection()

NodeEditorConnection::NodeEditorConnection	(	QGraphicsItem *	parent = 0,
		QGraphicsScene *	scene = 0
	)

Definition at line 23 of file NodeEditorConnection.cpp.

    : QGraphicsPathItem(parent), m_port1(0), m_port2(0)
{
    setFlag(QGraphicsItem::ItemIsSelectable, true);
    setPen(QPen(Qt::darkGray, 2));
    setBrush(Qt::NoBrush);
    setZValue(-1);
    if (scene)
        scene->addItem(this);
}

~NodeEditorConnection()

NodeEditorConnection::~NodeEditorConnection ( )

virtual

Definition at line 34 of file NodeEditorConnection.cpp.

{
    if (m_port1)
        m_port1->remove(this);
 
    if (m_port2)
        m_port2->remove(this);
}

References m_port1, m_port2, and NodeEditorPort::remove().

Here is the call graph for this function:

Member Function Documentation

getChildView()

ConnectableView * NodeEditorConnection::getChildView

(

)

returns child view, i.e. the view which owns output port of given connection

Definition at line 131 of file NodeEditorConnection.cpp.

{
    ASSERT(inputPort() != outputPort());
    ConnectableView* result = dynamic_cast<ConnectableView*>(outputPort()->parentItem());
    ASSERT(result);
    return result;
}

References ASSERT, inputPort(), and outputPort().

Referenced by DesignerScene::onEstablishedConnection().

Here is the call graph for this function:

getParentView()

ConnectableView * NodeEditorConnection::getParentView

(

)

returns parent view, i.e. the view which owns input port of given connection

Definition at line 123 of file NodeEditorConnection.cpp.

{
    ASSERT(inputPort() != outputPort());
    ConnectableView* result = dynamic_cast<ConnectableView*>(inputPort()->parentItem());
    ASSERT(result);
    return result;
}

References ASSERT, inputPort(), and outputPort().

Referenced by DesignerScene::onEstablishedConnection().

Here is the call graph for this function:

inputPort()

NodeEditorPort * NodeEditorConnection::inputPort

(

)

Definition at line 95 of file NodeEditorConnection.cpp.

{
    ASSERT(m_port1 && m_port2);
    return (m_port1->isInput() ? m_port1 : m_port2);
}

References ASSERT, NodeEditorPort::isInput(), m_port1, and m_port2.

Referenced by getChildView(), getParentView(), and DesignerScene::onEstablishedConnection().

Here is the call graph for this function:

outputPort()

NodeEditorPort * NodeEditorConnection::outputPort

(

)

Definition at line 101 of file NodeEditorConnection.cpp.

{
    ASSERT(m_port1 && m_port2);
    return (m_port1->isOutput() ? m_port1 : m_port2);
}

References ASSERT, NodeEditorPort::isOutput(), m_port1, and m_port2.

Referenced by getChildView(), getParentView(), and DesignerScene::removeConnection().

Here is the call graph for this function:

paint()

void NodeEditorConnection::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

Definition at line 107 of file NodeEditorConnection.cpp.

{
    Q_UNUSED(option)
    Q_UNUSED(widget)
 
    painter->setPen(QPen(Qt::darkGray, 2));
    painter->setBrush(Qt::NoBrush);
 
    if (isSelected()) {
        painter->setPen(Qt::DashLine);
    }
 
    painter->drawPath(path());
}

port1()

NodeEditorPort * NodeEditorConnection::port1

(

)

const

Definition at line 85 of file NodeEditorConnection.cpp.

{
    return m_port1;
}

References m_port1.

Referenced by NodeEditor::processMouseRelease().

port2()

NodeEditorPort * NodeEditorConnection::port2

(

)

const

Definition at line 90 of file NodeEditorConnection.cpp.

{
    return m_port2;
}

References m_port2.

setPort1()

void NodeEditorConnection::setPort1

(

NodeEditorPort *

p

)

Definition at line 53 of file NodeEditorConnection.cpp.

{
    m_port1 = p;
    m_port1->append(this);
    setPos1(p->scenePos());
}

References NodeEditorPort::append(), m_port1, and setPos1().

Referenced by ConnectableView::connectInputPort(), and NodeEditor::processMousePress().

Here is the call graph for this function:

setPort2()

void NodeEditorConnection::setPort2

(

NodeEditorPort *

p

)

Definition at line 60 of file NodeEditorConnection.cpp.

{
    m_port2 = p;
    m_port2->append(this);
    setPos2(p->scenePos());
}

References NodeEditorPort::append(), m_port2, and setPos2().

Referenced by ConnectableView::connectInputPort(), and NodeEditor::processMouseRelease().

Here is the call graph for this function:

setPos1()

void NodeEditorConnection::setPos1

(

const QPointF &

p

)

Definition at line 43 of file NodeEditorConnection.cpp.

{
    pos1 = p;
}

References pos1.

Referenced by NodeEditor::processMousePress(), and setPort1().

setPos2()

void NodeEditorConnection::setPos2

(

const QPointF &

p

)

Definition at line 48 of file NodeEditorConnection.cpp.

{
    pos2 = p;
}

References pos2.

Referenced by NodeEditor::processMouseMove(), NodeEditor::processMousePress(), NodeEditor::processMouseRelease(), and setPort2().

type()

int NodeEditorConnection::type ( ) const

inline

Definition at line 48 of file NodeEditorConnection.h.

{ return ViewTypes::NODE_EDITOR_CONNECTION; }

References ViewTypes::NODE_EDITOR_CONNECTION.

updatePath()

void NodeEditorConnection::updatePath

(

)

Definition at line 73 of file NodeEditorConnection.cpp.

{
    QPainterPath p;
    p.moveTo(pos1);
    qreal dx = pos2.x() - pos1.x();
    dx = qMax(dx, 200.);
    QPointF ctr1(pos1.x() + dx * 0.25, pos1.y());
    QPointF ctr2(pos2.x() - dx * 0.25, pos2.y());
    p.cubicTo(ctr1, ctr2, pos2);
    setPath(p);
}

References pos1, and pos2.

Referenced by ConnectableView::connectInputPort(), NodeEditor::processMouseMove(), NodeEditor::processMousePress(), and NodeEditor::processMouseRelease().

updatePosFromPorts()

void NodeEditorConnection::updatePosFromPorts

(

)

Definition at line 67 of file NodeEditorConnection.cpp.

{
    pos1 = m_port1->scenePos();
    pos2 = m_port2->scenePos();
}

References m_port1, m_port2, pos1, and pos2.

Member Data Documentation

m_port1

NodeEditorPort* NodeEditorConnection::m_port1

private

Definition at line 61 of file NodeEditorConnection.h.

Referenced by ~NodeEditorConnection(), inputPort(), outputPort(), port1(), setPort1(), and updatePosFromPorts().

m_port2

NodeEditorPort* NodeEditorConnection::m_port2

private

Definition at line 62 of file NodeEditorConnection.h.

Referenced by ~NodeEditorConnection(), inputPort(), outputPort(), port2(), setPort2(), and updatePosFromPorts().

pos1

QPointF NodeEditorConnection::pos1

private

Definition at line 59 of file NodeEditorConnection.h.

Referenced by setPos1(), updatePath(), and updatePosFromPorts().

pos2

QPointF NodeEditorConnection::pos2

private

Definition at line 60 of file NodeEditorConnection.h.

Referenced by setPos2(), updatePath(), and updatePosFromPorts().

---

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

• /home/www/ba/GUI/coregui/Views/SampleDesigner/NodeEditorConnection.h
• /home/www/ba/GUI/coregui/Views/SampleDesigner/NodeEditorConnection.cpp