Description

Renders a node's port in a QGraphicsScene.

Typically automatically created by a VuoRendererNode instance.

Public Member Functions
	VuoRendererPort (VuoPort basePort, VuoRendererSignaler signaler, bool isOutput, bool isReceptorPort=false, bool isFunctionPort=false)
	Creates a renderer detail for the specified base port.

QRectF	boundingRect (void) const
	Returns the bounding rectangle of this port (and its optional name and plug).

QPainterPath	shape (void) const
	Returns the shape of the rendered port, for use in collision detection, hit tests, and QGraphicsScene::items() functions.

void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget)
	Draws an input or output port (both standard ports and receptor/function ports).

VuoRendererPublishedPort *	getProxyPublishedSidebarPort (void) const
	Returns this port's published port sidebar renderering proxy, or NULL if it has none.

void	setProxyPublishedSidebarPort (VuoRendererPublishedPort *proxyPort)
	If set, this port will not be drawn; its drawing will be handled by `proxySidebarPort`.

bool	getEligibleForSelection ()
	Returns a boolean indicating whether this port has been deemed eligible for selection based on its proximity to the cursor.

void	setEligibleForConnection (bool eligible)
	Sets the boolean indicating whether this port is eligible for connection to the cable currently being dragged between ports.

void	extendedHoverEnterEvent (bool cableDragUnderway=false)
	Handle mouse hover start events generated by custom code making use of an extended hover range.

void	extendedHoverMoveEvent (bool cableDragUnderway=false)
	Handle mouse hover move events generated by custom code making use of an extended hover range.

void	extendedHoverLeaveEvent ()
	Handle mouse hover leave events generated by custom code making use of an extended hover range.

bool	canConnectDirectlyTo (VuoRendererPort *toPort)
	Returns a boolean indicating whether there may be a cable attached directly from this port to `toPort`, taking into account the respective port types (input vs.

bool	isConnectedTo (VuoRendererPort *toPort)
	Returns a boolean indicating whether there is a cable connecting this port to `toPort`.

bool	getInput (void) const
	Returns a boolean indicating whether this port is an input port.

bool	getOutput (void) const
	Returns a boolean indicating whether this port is an output port.

bool	getReceptorPort (void) const
	Returns a boolean indicating whether this port is a receptor port.

bool	getFunctionPort (void) const
	Returns a boolean indicating whether this port is a function port.

bool	hasConnectedCable (void) const
	Returns a boolean indicating whether this port has any attached cables.

bool	hasConnectedDataCable (void) const
	Returns a boolean indicating whether this port has any attached data+event cables.

void	updateGeometry ()
	Schedules a redraw of this port.

QPainterPath	getPortPath (qreal inset) const
	Returns a closed path representing the port's circle/triangle.

QRectF	getPortRect (void) const
	Returns a rectangle encompassing the port's circle.

QRectF	getPortConstantTextRect (void) const
	Returns a rect enclosing the string representation of the port's constant value.

VuoType *	getDataType (void) const
	Returns the data type associated with this port, or NULL if there is no associated data type.

bool	isConstant (void) const
	Returns true if this port has a constant data value.

string	getConstantAsString (void) const
	Returns the string representation of this port's constant data value, or an empty string if it has none.

VuoRendererPublishedPort *	getPublishedPort () const
	Returns a pointer to the VuoRendererPublishedPort associated with this port, or NULL if this port is not currently published.

VuoRendererNode *	getUnderlyingParentNode (void) const
	Returns a pointer to the node to which this port belongs in the underlying Graphviz (.dot/.vuo) representation of the composition.

VuoRendererNode *	getRenderedParentNode (void) const
	Returns a pointer to the node currently rendered as this port's parent.

VuoRendererPort *	getTypecastParentPort () const
	Returns this port's typecast parent port, or NULL if it has none.

void	setTypecastParentPort (VuoRendererPort *typecastParentPort)
	Sets this port's typecast parent port.

bool	supportsDisconnectionByDragging (void)
	Returns a boolean indicating whether this port supports cable disconnection by dragging from the port.

Public Member Functions inherited from VuoBaseDetail< VuoPort >
	VuoBaseDetail (string description, VuoPort *base)
	Creates a VuoNode detail class.

VuoPort *	getBase (void) const
	Returns the VuoNode detail class instance's base class instance.

void	setBase (VuoPort *base)
	Sets the VuoNode detail class instance's base class instance.

Static Public Attributes
static const qreal	portSpacing = VuoRendererFonts::thickPenWidth*3.0/4.0
	Vertical distance, in pixels at 1:1 zoom, between the center points of two ports.

static const qreal	portContainerMargin = VuoRendererFonts::thickPenWidth / 6.
	Vertical distance, in pixels at 1:1 zoom, between the outer edge of the first/last port and the node frame rect.

Protected Member Functions
void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)
	Handle mouse double-click events.

void	keyPressEvent (QKeyEvent *event)
	Handle key-press events.

void	paintWithOptions (QPainter *painter, bool sidebarPaintMode)
	Draws an input or output port, with customized options: If `sidebarPaintMode` is true, paints the port for display within the "Published Port" sidebar.

QRectF	boundingRectWithOptions (bool sidebarPaintMode) const
	Returns the bounding rectangle of this port, with customized options: If `sidebarPaintMode` is true, returns the bounding rect of the port for display within the "Published Port" sidebar.

QRectF	getNameRect (bool sidebarPaintMode=false) const
	Returns the bounding box of the port's label.

QPainterPath	getPortConstantPath (QRectF innerPortRect, QString text, QPainterPath *outsetPath, bool isTypecast=false) const
	Returns a path representing the frame of a port constant.

QRectF	getPortConstantTextRectForText (QString text) const
	Returns a rect enclosing the specified `text`.

QPainterPath	getFunctionPortGlyph (void) const
	Returns a path representing the glyph for function ports.

void	paintPortName (QPainter painter, VuoRendererColors colors, bool sidebarPaintMode)
	Paints the port's label.

Protected Member Functions inherited from VuoRendererItem
void	drawBoundingRect (QPainter *painter)
	Draws this item's bounding rect, for debugging.

Protected Attributes
bool	isReceptorPort
	Is this port a receptor port?

VuoRendererSignaler *	signaler
	The Qt signaler used by this port.

Friends
class	VuoRendererPublishedPort
	VuoRendererPublishedPort needs paintWithOptions(...) and boundingRectWithOptions(...)

class	TestVuoRenderer

Additional Inherited Members
Static Public Member Functions inherited from VuoRendererItem
static void	setDrawBoundingRects (bool drawBoundingRects)
	Specifies whether bounding rects will be shown the next time the QGraphicsScene is rendered.

static void	drawRect (QPainter *painter, QRectF rect)
	Draws a rect, for debugging.

Member Function Documentation

QRectF VuoRendererPort::boundingRectWithOptions ( bool sidebarPaintMode ) const

protected

Returns the bounding rectangle of this port, with customized options: If sidebarPaintMode is true, returns the bounding rect of the port for display within the "Published Port" sidebar.

Otherwise, returns the bounding rect of the port for display on the canvas.

bool VuoRendererPort::canConnectDirectlyTo ( VuoRendererPort * toPort )

Returns a boolean indicating whether there may be a cable attached directly from this port to toPort, taking into account the respective port types (input vs.

output; event-only vs. event+data; respective data types).

void VuoRendererPort::extendedHoverMoveEvent ( bool cableDragUnderway = false )

Handle mouse hover move events generated by custom code making use of an extended hover range.

If the optional highlightOnlyIfConnectable boolean is set to true, enable hover highlighting for this port only if the port is eligible for connection to the cable currently being connected.

QPainterPath VuoRendererPort::getPortConstantPath	(	QRectF	innerPortRect,
		QString	text,
		QPainterPath *	outsetPath,
		bool	isTypecast = `false`
	)		const

protected

Returns a path representing the frame of a port constant.

If outsetPath is not NULL, it is given a path that can be stroked with a pen of width 1 without overlapping the returned path.

QRectF VuoRendererPort::getPortConstantTextRect ( void ) const

Returns a rect enclosing the string representation of the port's constant value.

If the port does not have a constant value, returns a null rect.

QPainterPath VuoRendererPort::getPortPath ( qreal inset ) const

Returns a closed path representing the port's circle/triangle.

Does not include constant flag (see getPortConstantPath).

VuoRendererPublishedPort * VuoRendererPort::getPublishedPort ( void ) const

Returns a pointer to the VuoRendererPublishedPort associated with this port, or NULL if this port is not currently published.

Assumption: A given internal port will have at most one externally visible published port aliased to it.

VuoRendererNode * VuoRendererPort::getRenderedParentNode ( void ) const

Returns a pointer to the node currently rendered as this port's parent.

For ports belonging to typecast nodes, this value will change depending whether the typecast is currently free-standing (in which case that is the node that will be returned) or collapsed (in which case the downstream node to which the typecast is attached is the one that will be returned).

VuoRendererNode * VuoRendererPort::getUnderlyingParentNode ( void ) const

Returns a pointer to the node to which this port belongs in the underlying Graphviz (.dot/.vuo) representation of the composition.

For a given port, this value will never change. For typecast ports, this method will always return the original parent typecast node, regardless of whether the typecast is currently free-standing or collapsed.

void VuoRendererPort::paintWithOptions	(	QPainter *	painter,
		bool	sidebarPaintMode
	)

protected

Draws an input or output port, with customized options: If sidebarPaintMode is true, paints the port for display within the "Published Port" sidebar.

Otherwise, paints the port for display on the canvas.

void VuoRendererPort::setProxyPublishedSidebarPort ( VuoRendererPublishedPort * proxySidebarPort )

If set, this port will not be drawn; its drawing will be handled by proxySidebarPort.

Used for ports belonging to "vuo.in" or "vuo.out" nodes, to be rendered within the published port sidebars rather than on the canvas.

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

renderer/VuoRendererPort.hh
renderer/VuoRendererPort.cc

Description

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Member Function Documentation