tlp::ViewWidget Class Reference

#include <ViewWidget.h>

Inherits tlp::View.

Inherited by tlp::GlMainView.

Public Slots
virtual void	draw ()
virtual void	setupUi ()
Public Slots inherited from tlp::View
void	addRedrawTrigger (tlp::Observable *)
virtual void	applySettings ()
virtual void	centerView ()
void	clearRedrawTriggers ()
virtual void	draw ()=0
void	emitDrawNeededSignal ()
virtual void	refresh ()
void	removeRedrawTrigger (tlp::Observable *)
void	setCurrentInteractor (tlp::Interactor *currentInteractor)
void	setGraph (tlp::Graph *graph)
void	setInteractors (const QList< tlp::Interactor * > &)
virtual void	setState (const tlp::DataSet &)=0
virtual void	setupUi ()=0
void	showContextMenu (const QPoint &point, const QPointF &scenePoint)
virtual void	treatEvent (const Event &)
void	undoCallback ()

Public Member Functions
virtual QGraphicsView *	graphicsView () const
Public Member Functions inherited from tlp::View
	View ()
virtual	~View ()
virtual std::string	category () const
virtual QList< QWidget * >	configurationWidgets () const
tlp::Interactor *	currentInteractor () const
tlp::Graph *	graph () const
std::string	icon () const
QList< tlp::Interactor * >	interactors () const
virtual tlp::DataSet	state () const =0
void	treatEvents (const std::vector< Event > &events)
QSet< tlp::Observable * >	triggers () const
Public Member Functions inherited from tlp::Plugin
virtual std::string	author () const =0
virtual std::string	date () const =0
virtual std::string	group () const =0
virtual int	id () const
virtual std::string	info () const =0
virtual std::string	major () const
virtual std::string	minor () const
virtual std::string	name () const =0
virtual std::string	release () const =0
virtual std::string	tulipMajor () const
virtual std::string	tulipMinor () const
virtual std::string	tulipRelease () const =0
Public Member Functions inherited from tlp::WithParameter
template<typename T >
void	addInOutParameter (const std::string &name, const std::string &help=std::string(), const std::string &defaultValue=std::string(), bool isMandatory=true)
template<typename T >
void	addInParameter (const std::string &name, const std::string &help, const std::string &defaultValue, bool isMandatory=true)
template<typename T >
void	addOutParameter (const std::string &name, const std::string &help=std::string(), const std::string &defaultValue=std::string(), bool isMandatory=true)
template<typename T >
void	addParameter (const std::string &name, const std::string &help=std::string(), const std::string &defaultValue=std::string(), bool isMandatory=true)
const tlp::ParameterDescriptionList &	getParameters () const
Public Member Functions inherited from tlp::WithDependency
void	addDependency (const char *name, const char *release)
const std::list< Dependency > &	dependencies () const
Public Member Functions inherited from tlp::Observable
void	addListener (Observable *const listener) const
void	addObserver (Observable *const observer) const
unsigned int	countListeners () const
unsigned int	countObservers () const
unsigned int	getReceived () const
unsigned int	getSent () const
void	removeListener (Observable *const listener) const
void	removeObserver (Observable *const observerver) const

Protected Slots
virtual void	currentInteractorChanged (tlp::Interactor *)
virtual void	graphDeleted (Graph *parentGraph)
Protected Slots inherited from tlp::View
virtual void	currentInteractorChanged (tlp::Interactor *)
virtual void	fillContextMenu (QMenu *, const QPointF &)
virtual void	graphChanged (tlp::Graph *)=0
virtual void	graphDeleted (tlp::Graph *parentGraph)=0
virtual void	interactorsInstalled (const QList< tlp::Interactor * > &interactors)

Protected Member Functions
void	addToScene (QGraphicsItem *item)
virtual QGraphicsItem *	centralItem () const
void	removeFromScene (QGraphicsItem *item)
void	setCentralWidget (QWidget *, bool deleteOldCentralWidget=true)
virtual void	setupWidget ()=0
QPixmap	snapshot (const QSize &outputSize=QSize())

Additional Inherited Members
Signals inherited from tlp::View
void	drawNeeded ()
void	graphSet (tlp::Graph *)
Static Public Member Functions inherited from tlp::Observable
static Observable *	getObject (tlp::node n)
static const tlp::VectorGraph &	getObservableGraph ()
static void	holdObservers ()
static bool	isAlive (tlp::node n)
static unsigned int	observersHoldCounter ()
static void	unholdObservers ()
Protected Attributes inherited from tlp::WithParameter
ParameterDescriptionList	parameters
Protected Attributes inherited from tlp::WithDependency
std::list< Dependency >	_dependencies

Detailed Description

ViewWidget provides convenience functions to allow the user to build a view plugin that displays a QWidget as its main element.

The ViewWidget class will build a QGraphicsView that sets a widget as the background of the whole panel. Sublassing ViewWidget means that you'll have to provide a centralWidget (see ViewWidget::setCentralWidget) that will take up the whole panel and be drawn in the background. You can use the addToScene() and removeFromScene() methods to edit the QGraphicsItems that will drawn over the widget.

By default, when an interactor gets active on a ViewWidget, it gets installed on the centralWidget (see Interactor::install)

Note

When creating a ViewWidget, you should overload setupWidget instead of setupUi. If you still want to implement setupUi, you must call the ViewWidget::setupUi() method first.

Definition at line 43 of file ViewWidget.h.

Member Function Documentation

void tlp::ViewWidget::addToScene ( QGraphicsItem *  item )

protected

Adds an item to the graphicsView that will be drawn on top of the widget This is a convenience function for the user to avoid taking care of item parenthood.

virtual QGraphicsItem* tlp::ViewWidget::centralItem ( ) const

protectedvirtual

Returns

The graphics item associated to the central widget

See Also

setCentralWidget

Reimplemented from tlp::View.

virtual void tlp::ViewWidget::currentInteractorChanged ( tlp::Interactor *  )

protectedvirtualslot

By default, the current interactor gets installed over the central widget.

See Also

View::currentInteractorChanged()

virtual void tlp::ViewWidget::draw ( )

inlinevirtualslot

Reimplemented from View::draw() By default, this method does nothing. We assume the widget is automatically repainted by Qt's windowing manager.

Definition at line 74 of file ViewWidget.h.

virtual QGraphicsView* tlp::ViewWidget::graphicsView ( ) const

virtual

See Also

View::graphicsView()

Note

This method should not be reimplemented as a subclass of ViewWidget

Implements tlp::View.

void tlp::ViewWidget::removeFromScene ( QGraphicsItem *  item )

protected

Removes a graphics item from the view. This is a convenience function for the user to avoid taking care of item parenthood.

void tlp::ViewWidget::setCentralWidget ( QWidget *  , bool  deleteOldCentralWidget = true  )

protected

Sets the widget to be drawn as the view's background. This method may be called several times. Parenthood between the widget and items added using addToScene will be automatically updated.

Note

The ViewWidget takes ownership of the central widget. The previous central widget gets deleted in the process.

virtual void tlp::ViewWidget::setupUi ( )

virtualslot

See Also

View::setupUi

Note

This method should not be reimplemented as a subclass of ViewWidget

virtual void tlp::ViewWidget::setupWidget ( )

protectedpure virtual

Sets up the central widget. This is similar to View::setupUi in the sense that the purpose of setupWidget is to construct the GUI element.

Warning

This method MUST call the setCentralWidget to provide the ViewWidget with a valid widget.

Implemented in tlp::GlMainView.

QPixmap tlp::ViewWidget::snapshot ( const QSize &  outputSize = QSize() )

protectedvirtual

Takes a snapshot of the view's screen and saves it into the given pixmap. The snapshot is scaled to outputSize. If a null size is given, the snapshot is to be on a 1:1 ratio.

Returns

A non-null pixmap of the snapshot was correctly taken.

Implements tlp::View.