#include <Scene.hxx>

Inheritance diagram for YACS::HMI::Scene:

Collaboration diagram for YACS::HMI::Scene:

Public Member Functions
	Scene (QObject *parent=0)

virtual	~Scene ()

void	setZoom (bool zooming)

bool	isZooming ()

Static Public Attributes
static bool	_straightLinks = false

static bool	_autoComputeLinks = true

static bool	_simplifyLinks = true

static bool	_force2NodesLink = true

static bool	_addRowCols = true

Protected Member Functions
virtual void	helpEvent (QGraphicsSceneHelpEvent *event)

virtual void	mousePressEvent (QGraphicsSceneMouseEvent *mouseEvent)

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *mouseEvent)

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *mouseEvent)

Protected Attributes
bool	_zooming

Detailed Description

Definition at line 30 of file Scene.hxx.

Constructor & Destructor Documentation

Scene::Scene ( QObject * parent = 0 )

Definition at line 43 of file Scene.cxx.

References _zooming.

                            : QGraphicsScene(parent)
 {
   _zooming = false;
 }

Scene::~Scene ( )

virtual

Definition at line 48 of file Scene.cxx.

49 {

50 }

Member Function Documentation

void Scene::helpEvent ( QGraphicsSceneHelpEvent * event )

protectedvirtual

Definition at line 69 of file Scene.cxx.

References DEBTRACE, and YACS::HMI::SceneTextItem::getToolTip().

 {
   DEBTRACE("Scene::helpEvent");
   QGraphicsItem *qit = itemAt(event->scenePos(), QTransform());
   SceneItem * item = dynamic_cast<SceneItem*>(qit);
   if (item)
     {
       QToolTip::showText(event->screenPos(), item->getToolTip());
       return;
     }
   SceneTextItem * itemt = dynamic_cast<SceneTextItem*>(qit);
   if (itemt)
     {
       QToolTip::showText(event->screenPos(), itemt->getToolTip());
       return;
     }
   QToolTip::hideText();
 }

bool Scene::isZooming ( )

check if mouse move event can be used for selection or node displacement.

See Also: setZoom()

Definition at line 64 of file Scene.cxx.

References _zooming.

Referenced by YACS::HMI::SceneObserverItem::mousePressEvent(), YACS::HMI::SceneCtrlPortItem::mousePressEvent(), YACS::HMI::SceneNodeItem::mousePressEvent(), and YACS::HMI::SceneItem::mousePressEvent().

 {
   return _zooming;
 }

void Scene::mouseMoveEvent ( QGraphicsSceneMouseEvent * mouseEvent )

protectedvirtual

Definition at line 110 of file Scene.cxx.

 {
   //QGraphicsScene::mouseMoveEvent(mouseEvent);
   QGraphicsScene::mouseMoveEvent(mouseEvent);
    
 }

void Scene::mousePressEvent ( QGraphicsSceneMouseEvent * mouseEvent )

protectedvirtual

Definition at line 88 of file Scene.cxx.

References DEBTRACE, and YACS::HMI::AbstractSceneItem::getLabel().

 {
   //DEBTRACE("Scene::mousePressEvent");
   QGraphicsScene::mousePressEvent(mouseEvent);
   QGraphicsItem *qit  = mouseGrabberItem();
   if (qit)
     {
       //DEBTRACE(qit);
       SceneItem *item = dynamic_cast<SceneItem*>(qit);
       if (item)
         DEBTRACE("mouseGrabberItem " <<item->handlesChildEvents()
                  << " " << item->getLabel().toStdString());
     }
 //   QList<QGraphicsItem*> selItems = items(mouseEvent->scenePos());
 }

void Scene::mouseReleaseEvent ( QGraphicsSceneMouseEvent * mouseEvent )

protectedvirtual

Definition at line 104 of file Scene.cxx.

References _zooming.

 {
   _zooming = false;
   QGraphicsScene::mouseReleaseEvent(mouseEvent);
 }

void Scene::setZoom ( bool zooming )

to notify scene when mouse actions must not be used for selection or node displacement, typically when mouse is used to adjust the view, like zoom or recenter of the view.

Definition at line 56 of file Scene.cxx.

References _zooming.

Referenced by YACS::HMI::GraphicsView::onViewFitArea(), YACS::HMI::GraphicsView::onViewPan(), and YACS::HMI::GraphicsView::onViewZoom().