#include <SceneObserverItem.hxx>

Inheritance diagram for YACS::HMI::SceneObserverItem:

Collaboration diagram for YACS::HMI::SceneObserverItem:

Public Member Functions
	SceneObserverItem (QGraphicsScene scene, SceneItem parent, QString label, Subject *subject)

virtual	~SceneObserverItem ()

virtual void	update (GuiEvent event, int type, Subject *son)

virtual void	select (bool isSelected)

virtual void	activateSelection (bool selected)

virtual Subject *	getSubject ()

virtual QString	getToolTip ()

Public Member Functions inherited from YACS::HMI::SceneItem
	SceneItem (QGraphicsScene scene, SceneItem parent, QString label)

virtual	~SceneItem ()

virtual QRectF	boundingRect () const

virtual QRectF	childrenBoundingRect () const

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

virtual void	setTopLeft (QPointF topLeft)

virtual void	checkGeometryChange ()

virtual void	popupMenu (QWidget *caller, const QPoint &globalPos)

void	setParent (SceneItem *parent)

void	setEventPos (QPointF point)

virtual void	updateChildItems ()

virtual void	updateLinks ()

virtual void	shrinkExpandLink (bool se)

virtual void	shrinkExpandRecursive (bool isExpanding, bool fromHere, ShrinkMode theShrinkMode)

bool	isAncestorShrinked ()

Public Member Functions inherited from YACS::HMI::AbstractSceneItem
	AbstractSceneItem (QGraphicsScene scene, SceneItem parent, QString label)

virtual	~AbstractSceneItem ()

int	getLevel ()

void	setLevel ()

virtual void	reorganize ()

virtual QString	getLabel ()

virtual void	addHeader ()

virtual void	addProgressItem ()

virtual qreal	getHeaderBottom ()

qreal	getWidth ()

qreal	getHeight ()

virtual void	setWidth (qreal width)
	AbstractSceneItem cannot be resized (only ComposedNodeItem can) More...

virtual void	setHeight (qreal height)
	AbstractSceneItem cannot be resized (only ComposedNodeItem can) More...

virtual void	setGeometryOptimization (bool optimize)

SceneItem *	getParent ()

Public Member Functions inherited from YACS::HMI::GuiObserver
	GuiObserver ()

virtual	~GuiObserver ()

virtual void	incrementSubjects (Subject *subject)

virtual void	decrementSubjects (Subject *subject)

int	getNbSubjects ()

bool	isDestructible ()

Protected Member Functions
virtual void	mousePressEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)

virtual QColor	getBrushColor ()

virtual QString	getMimeFormat ()

Protected Member Functions inherited from YACS::HMI::SceneItem
virtual void	hoverEnterEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverMoveEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverLeaveEvent (QGraphicsSceneHoverEvent *event)

virtual QColor	getPenColor ()

QColor	hoverColor (QColor origColor)

Protected Member Functions inherited from YACS::HMI::AbstractSceneItem
virtual QRectF	childBoundingRect (AbstractSceneItem *child) const

Protected Attributes
Subject *	_subject

bool	_draging

bool	_dragModifier

bool	_emphasized

Protected Attributes inherited from YACS::HMI::SceneItem
bool	_hover

bool	_ancestorShrinked

QPointF	_eventPos

Protected Attributes inherited from YACS::HMI::AbstractSceneItem
SceneItem *	_parent

YACS::HMI::Scene *	_scene

QString	_label

int	_level

qreal	_width

qreal	_height

qreal	_incHeight

QColor	_penColor

QColor	_brushColor

QColor	_hiPenColor

QColor	_hiBrushColor

bool	_hasHeader

bool	_optimize

bool	_dragable

enum Qt::MouseButton	_dragButton

Protected Attributes inherited from YACS::HMI::GuiObserver
std::set< Subject * >	_subjectSet

bool	_destructible

Additional Inherited Members
Static Public Member Functions inherited from YACS::HMI::GuiObserver
static std::string	eventName (GuiEvent event)

static void	setEventMap ()

Public Attributes inherited from YACS::HMI::SceneItem
bool	_blocX

bool	_blocY

Static Protected Attributes inherited from YACS::HMI::GuiObserver
static std::map< int, std::string >	_eventNameMap

Detailed Description

Definition at line 31 of file SceneObserverItem.hxx.

Constructor & Destructor Documentation

SceneObserverItem::SceneObserverItem	(	QGraphicsScene *	scene,
		SceneItem *	parent,
		QString	label,
		Subject *	subject
	)

Definition at line 42 of file SceneObserverItem.cxx.

References _draging, _dragModifier, _emphasized, YACS::HMI::QtGuiContext::_mapOfSceneItem, _subject, YACS::HMI::Subject::attach(), and YACS::HMI::QtGuiContext::getQtCurrent().

   : SceneItem(scene, parent, label), GuiObserver()
 {
   _subject = subject;
   _draging = false;
   _dragModifier = false;
   _emphasized = false;
   _subject->attach(this);
   QtGuiContext::getQtCurrent()->_mapOfSceneItem[_subject]=this;
 }

SceneObserverItem::~SceneObserverItem ( )

virtual

Definition at line 54 of file SceneObserverItem.cxx.

References YACS::HMI::QtGuiContext::_mapOfSceneItem, _subject, and YACS::HMI::QtGuiContext::getQtCurrent().

 {
   QtGuiContext::getQtCurrent()->_mapOfSceneItem.erase(_subject);
 }

Member Function Documentation

void SceneObserverItem::activateSelection ( bool selected )

virtual

Reimplemented from YACS::HMI::AbstractSceneItem.

Definition at line 190 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_label, _subject, DEBTRACE, and YACS::HMI::Subject::select().

 {
   DEBTRACE("SceneObserverItem::activateSelection " << _label.toStdString()<< " " << selected);
   _subject->select(true);
 }

QColor SceneObserverItem::getBrushColor ( )

protectedvirtual

Reimplemented from YACS::HMI::SceneItem.

Reimplemented in YACS::HMI::SceneLinkItem, YACS::HMI::SceneComposedNodeItem, YACS::HMI::SceneCtrlLinkItem, YACS::HMI::SceneInPortItem, and YACS::HMI::SceneDSLinkItem.

Definition at line 177 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_brushColor, _emphasized, YACS::HMI::AbstractSceneItem::_hiBrushColor, YACS::HMI::SceneItem::_hover, YACS::HMI::Resource::emphasizeBrushColor, and YACS::HMI::SceneItem::hoverColor().

Referenced by YACS::HMI::SceneDSLinkItem::getBrushColor(), YACS::HMI::SceneCtrlLinkItem::getBrushColor(), YACS::HMI::SceneLinkItem::getBrushColor(), YACS::HMI::SceneElementaryNodeItem::paint(), and YACS::HMI::SceneDataPortItem::paint().

 {
   QColor color;
   color = _brushColor;
   if (isSelected())
     color = _hiBrushColor;
   if (_emphasized)
     color = Resource::emphasizeBrushColor;
   if (_hover)
     color = hoverColor(color);
   return color;
 }

QString SceneObserverItem::getMimeFormat ( )

protectedvirtual

Reimplemented in YACS::HMI::SceneNodeItem, and YACS::HMI::SceneOutPortItem.

Definition at line 201 of file SceneObserverItem.cxx.

Referenced by mouseMoveEvent().

 {
   return "yacs/subject";
 }

Subject * SceneObserverItem::getSubject ( )

virtual

Definition at line 196 of file SceneObserverItem.cxx.

References _subject.

Referenced by YACS::HMI::SceneBlocItem::arrangeChildNodes(), YACS::HMI::SceneComposedNodeItem::arrangeNodes(), YACS::HMI::SceneCtrlInPortItem::dropEvent(), YACS::HMI::SceneInPortItem::dropEvent(), YACS::HMI::SceneComposedNodeItem::dropEvent(), YACS::HMI::SceneNodeItem::getHeaderLabel(), YACS::HMI::SceneCtrlPortItem::getSubjectNode(), YACS::HMI::SceneDataPortItem::SceneDataPortItem(), and YACS::HMI::SceneComposedNodeItem::updateControlLinks().

 {
   return _subject;
 }

QString SceneObserverItem::getToolTip ( )

virtual

generic behaviour for headers: obtain the tooltip from parent. Method to be redefined in derived classes.

Reimplemented from YACS::HMI::SceneItem.

Definition at line 89 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_label, YACS::HMI::QtGuiContext::_mapOfSchemaItem, _subject, YACS::HMI::SchemaItem::data(), DEBTRACE, and YACS::HMI::QtGuiContext::getQtCurrent().

 {
   DEBTRACE("SceneObserverItem::getToolTip");
   if (!_subject)
     return _label;
   if ( !QtGuiContext::getQtCurrent() || !QtGuiContext::getQtCurrent()->_mapOfSchemaItem.count(_subject))
     return _label;
   QString val ="";
   SchemaItem * item = QtGuiContext::getQtCurrent()->_mapOfSchemaItem[_subject];
   val = item->data(0, Qt::ToolTipRole).toString();
   return val;
 }

void SceneObserverItem::mouseMoveEvent ( QGraphicsSceneMouseEvent * event )

protectedvirtual

creation of mime data if drag detected. setData mime type must be coherent with SchemaModel::mimeTypes to allow drop on port item in tree view

Reimplemented in YACS::HMI::SceneNodeItem.

Definition at line 123 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_dragButton, _draging, _dragModifier, _subject, DEBTRACE, getMimeFormat(), YACS::HMI::SceneItem::paint(), and YACS::HMI::ItemMimeData::setSubject().

Referenced by YACS::HMI::SceneNodeItem::mouseMoveEvent().

 {
   if (_draging)
     {
       //DEBTRACE("_draging");
       if (QLineF(event->screenPos(), 
                  event->buttonDownScreenPos(_dragButton)).length()
           < QApplication::startDragDistance())
         {
           return;
         }
       DEBTRACE("in drag");
       QDrag *drag = new QDrag(event->widget());
       ItemMimeData *mime = new ItemMimeData;
       drag->setMimeData(mime);
       mime->setSubject(_subject);
       mime->setData(getMimeFormat(), "_subject");
       if(_dragModifier)
         mime->setControl(false);
       else
         mime->setControl(true);
   
       QPixmap pixmap(34, 34);
       pixmap.fill(Qt::white);
       
       QPainter painter(&pixmap);
       painter.translate(15, 15);
       painter.setRenderHint(QPainter::Antialiasing);
       paint(&painter, 0, 0);
       painter.end();
       
       pixmap.setMask(pixmap.createHeuristicMask());
       
       drag->setPixmap(pixmap);
       drag->setHotSpot(QPoint(15, 20));
       
       drag->exec();
       //restore non drag state
       setCursor(Qt::ArrowCursor);
       _draging = false;
       _dragModifier = false;
     }
 }

void SceneObserverItem::mousePressEvent ( QGraphicsSceneMouseEvent * event )

protectedvirtual

When Zooming, filter all mouse events to items: do not work, scene do not receive...

Reimplemented from YACS::HMI::SceneItem.

Reimplemented in YACS::HMI::SceneNodeItem.

Definition at line 102 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_dragable, YACS::HMI::AbstractSceneItem::_dragButton, _draging, _dragModifier, YACS::HMI::AbstractSceneItem::_label, YACS::HMI::AbstractSceneItem::_scene, _subject, DEBTRACE, YACS::HMI::QtGuiContext::getQtCurrent(), YACS::HMI::QtGuiContext::isEdition(), YACS::HMI::Scene::isZooming(), and YACS::HMI::Subject::select().

Referenced by YACS::HMI::SceneNodeItem::mousePressEvent().

 {
   DEBTRACE("SceneObserverItem::mousePressEvent " << _label.toStdString()
            << " " << acceptedMouseButtons ());
   if (!_scene->isZooming())
     {
       _subject->select(true);
       if (_dragable && (event->button() == _dragButton) && QtGuiContext::getQtCurrent()->isEdition())
         {
           setCursor(Qt::ClosedHandCursor);
           _draging = true;
           _dragModifier= event->modifiers() & (Qt::ControlModifier | Qt::ShiftModifier);
         }
     }
 }

void SceneObserverItem::mouseReleaseEvent ( QGraphicsSceneMouseEvent * event )

protectedvirtual

Reimplemented in YACS::HMI::SceneNodeItem.

Definition at line 167 of file SceneObserverItem.cxx.

References _draging, and _dragModifier.

Referenced by YACS::HMI::SceneNodeItem::mouseReleaseEvent().

 {
   if (_draging)
     {
       setCursor(Qt::ArrowCursor);
     }
   _draging = false;
   _dragModifier = false;
 }

void SceneObserverItem::select ( bool isSelected )

virtual

Reimplemented from YACS::HMI::GuiObserver.

Reimplemented in YACS::HMI::SceneLinkItem.

Definition at line 77 of file SceneObserverItem.cxx.

References YACS::HMI::AbstractSceneItem::_label, _subject, DEBTRACE, YACS::HMI::QtGuiContext::getQtCurrent(), and YACS::HMI::QtGuiContext::setSelectedSubject().

Referenced by YACS::HMI::SceneLinkItem::select().

 {
   DEBTRACE("SceneObserverItem::select "  << _label.toStdString() << " " << isSelected);
   if (isSelected)
     {
 //       _scene->clearSelection();
       setSelected(true);
       QtGuiContext::getQtCurrent()->setSelectedSubject(_subject);
     }
   else setSelected(false);
 }

void SceneObserverItem::update	(	GuiEvent	event,
		int	type,
		Subject *	son
	)

virtual

Reimplemented from YACS::HMI::GuiObserver.

Reimplemented in YACS::HMI::SceneLinkItem, YACS::HMI::SceneNodeItem, YACS::HMI::SceneDataPortItem, YACS::HMI::SceneElementaryNodeItem, and YACS::HMI::SceneComposedNodeItem.

Definition at line 59 of file SceneObserverItem.cxx.

References _emphasized, DEBTRACE, YACS::HMI::EMPHASIZE, and YACS::HMI::GuiObserver::eventName().

Referenced by gui.graph.MyCanvas::customEvent(), YACS::HMI::SceneDataPortItem::update(), and YACS::HMI::SceneNodeItem::update().

 {
   DEBTRACE(" SceneObserverItem::update " << eventName(event)<< " " << type << " " << son);
   switch (event)
     {
     case YACS::HMI::EMPHASIZE:
       DEBTRACE("SceneObserverItem::update EMPHASIZE " << type);
       if (type)
         _emphasized = true;
       else
         _emphasized = false;
       QGraphicsItem::update();
       break;
     default:
       ;
     }
 }