ModelView::ItemListener< T > Class Template Reference

Base class to subscribe to signals generated by SessionItem of certin type. More...

Inheritance diagram for ModelView::ItemListener< T >:

Collaboration diagram for ModelView::ItemListener< T >:

Public Member Functions
T *	currentItem () const
void	setItem (SessionItem *item)
void	setOnAboutToRemoveItem (Callbacks::item_tagrow_t f)
void	setOnChildPropertyChange (Callbacks::item_str_t f)
	Sets callback to be notified on item's children property change. More...
void	setOnDataChange (Callbacks::item_int_t f)
	Sets callback to be notified on item's data change. More...
void	setOnItemDestroy (Callbacks::item_t f)
void	setOnItemInserted (Callbacks::item_tagrow_t f)
	Sets callback to be notified on child insertion. More...
void	setOnItemRemoved (Callbacks::item_tagrow_t f)
	Sets callback to be notified on child removal. More...
void	setOnPropertyChange (Callbacks::item_str_t f)
	Sets callback to be notified on item's property change. More...

Protected Member Functions
SessionItem *	item () const
	For necessary manipulations on unsubscription. More...
virtual void	subscribe ()
virtual void	unsubscribe ()
	For necessary manipulations on new item. More...

Private Member Functions
void	unsubscribe_from_current ()

Private Attributes
SessionItem *	m_item {nullptr}

Detailed Description

template<typename T>
class ModelView::ItemListener< T >

Base class to subscribe to signals generated by SessionItem of certin type.

Definition at line 26 of file itemlistener.h.

Member Function Documentation

currentItem()

template<typename T >

T* ModelView::ItemListener< T >::currentItem ( ) const

inline

Definition at line 28 of file itemlistener.h.

{ return static_cast<T*>(item()); }

References ModelView::ItemListenerBase::item().

Referenced by ModelView::ColorMapPlotController::ColorMapPlotControllerImpl::colormap_item(), ModelView::Data2DPlotController::Data2DPlotControllerImpl::dataItem(), ModelView::GraphPlotController::GraphItemControllerImpl::graph_item(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::init_axis(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::setAxisLogScaleFromItem(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::setAxisRangeFromItem(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::setConnected(), ModelView::ColorScalePlotController::ColorScalePlotControllerImpl::setup_components(), TEST_F(), ModelView::ColorScalePlotController::ColorScalePlotControllerImpl::update_log_scale(), ModelView::GraphViewportPlotController::GraphViewportPlotControllerImpl::viewport_item(), and ModelView::ColorMapViewportPlotController::ColorMapViewportPlotControllerImpl::viewportItem().

Here is the call graph for this function:

item()

ModelView::SessionItem * ModelView::ItemListenerBase::item ( ) const

protectedinherited

For necessary manipulations on unsubscription.

Sets callback to be notified when row is about to be removed.

Callback will be called with (compound_item, tagrow). For MultiLayer containing the T_LAYERS tag, the signal will be triggered on layer deletion with (multilayer*, {T_LAYER, row}) as callback parameters.

Definition at line 112 of file itemlistenerbase.cpp.

{
    return m_item;
}

Referenced by ModelView::ItemListenerBase::ItemListenerBase(), ModelView::ItemListener< T >::currentItem(), ModelView::Data1DPlotController::Data1DPlotControllerImpl::initGraphFromItem(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::setConnected(), ModelView::PenController::PenControllerImpl::update_graph_from_item(), ModelView::AxisTitleController::AxisTitleControllerImpl::updateAxisFromItem(), ModelView::Data1DPlotController::Data1DPlotControllerImpl::updateErrorBarsFromItem(), ModelView::Data1DPlotController::Data1DPlotControllerImpl::updateGraphPointsFromItem(), ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::updateLowerRange(), and ModelView::ViewportAxisPlotController::AxesPlotControllerImpl::updateUpperRange().

setItem()

void ModelView::ItemListenerBase::setItem ( ModelView::SessionItem *  item )

inherited

Definition at line 30 of file itemlistenerbase.cpp.

{
    if (m_item == item)
        return;
 
    unsubscribe_from_current();
 
    m_item = item;
 
    if (!m_item)
        return;
 
    auto on_item_destroy = [this](auto) {
        m_item = nullptr;
        unsubscribe();
    };
    m_item->mapper()->setOnItemDestroy(on_item_destroy, this);
 
    subscribe();
}

Referenced by ModelView::ItemListenerBase::ItemListenerBase(), and TEST_F().

setOnAboutToRemoveItem()

void ModelView::ItemListenerBase::setOnAboutToRemoveItem ( Callbacks::item_tagrow_t  f )

inherited

Definition at line 102 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnAboutToRemoveItem(f, this);
}

Referenced by ModelView::GraphViewportPlotController::subscribe().

setOnChildPropertyChange()

void ModelView::ItemListenerBase::setOnChildPropertyChange ( Callbacks::item_str_t  f )

inherited

Sets callback to be notified on item's children property change.

Callback will be called with (compound_item, property_name). For MultiLayer containing the layer with "thickness" property, the signal will be triggered on thickness change using (layeritem*, "thickness") as callback parameters.

Definition at line 77 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnChildPropertyChange(f, this);
}

setOnDataChange()

void ModelView::ItemListenerBase::setOnDataChange ( Callbacks::item_int_t  f )

inherited

Sets callback to be notified on item's data change.

Callback will be called with (SessionItem*, data_role).

Definition at line 59 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnDataChange(f, this);
}

Referenced by ModelView::Data2DPlotController::subscribe().

setOnItemDestroy()

void ModelView::ItemListenerBase::setOnItemDestroy ( Callbacks::item_t  f )

inherited

Definition at line 51 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnItemDestroy(f, this);
}

setOnItemInserted()

void ModelView::ItemListenerBase::setOnItemInserted ( Callbacks::item_tagrow_t  f )

inherited

Sets callback to be notified on child insertion.

Callback will be called with (compound_item, tag, row). For MultiLayer containing the T_LAYERS tag, the signal will be triggered on layer insertion with (multilayer*, {T_LAYER, row}) as callback parameters.

Definition at line 87 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnItemInserted(f, this);
}

Referenced by ModelView::ColorMapViewportPlotController::subscribe(), and ModelView::GraphViewportPlotController::subscribe().

setOnItemRemoved()

void ModelView::ItemListenerBase::setOnItemRemoved ( Callbacks::item_tagrow_t  f )

inherited

Sets callback to be notified on child removal.

Callback will be called with (compound_item, tag, row). For MultiLayer containing the T_LAYERS tag, the signal will be triggered on layer removal with (multilayer*, {T_LAYER, oldrow}) as callback parameters.

Definition at line 97 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnItemRemoved(f, this);
}

setOnPropertyChange()

void ModelView::ItemListenerBase::setOnPropertyChange ( Callbacks::item_str_t  f )

inherited

Sets callback to be notified on item's property change.

Callback will be called with (compound_item, property_name).

Definition at line 67 of file itemlistenerbase.cpp.

{
    item()->mapper()->setOnPropertyChange(f, this);
}

Referenced by ModelView::AxisTitleController::subscribe(), ModelView::ColorMapPlotController::subscribe(), ModelView::ColorScalePlotController::subscribe(), ModelView::Data1DPlotController::subscribe(), ModelView::GraphPlotController::subscribe(), ModelView::PenController::subscribe(), and ModelView::ViewportAxisPlotController::subscribe().

subscribe()

virtual void ModelView::ItemListenerBase::subscribe ( )

inlineprotectedvirtualinherited

Reimplemented in ModelView::ViewportAxisPlotController, ModelView::PenController, ModelView::GraphViewportPlotController, ModelView::GraphPlotController, ModelView::Data2DPlotController, ModelView::Data1DPlotController, ModelView::ColorScalePlotController, ModelView::ColorMapViewportPlotController, ModelView::ColorMapPlotController, ModelView::AxisTitleController, and ItemListenerTest::TestController.

Definition at line 50 of file itemlistenerbase.h.

{}   //! For necessary manipulations on new item.

unsubscribe()

virtual void ModelView::ItemListenerBase::unsubscribe ( )

inlineprotectedvirtualinherited

For necessary manipulations on new item.

Reimplemented in ModelView::ViewportAxisPlotController, ModelView::GraphPlotController, ModelView::Data2DPlotController, ModelView::Data1DPlotController, ModelView::ColorMapViewportPlotController, ModelView::ColorMapPlotController, and ItemListenerTest::TestController.

Definition at line 51 of file itemlistenerbase.h.

{} //! For necessary manipulations on unsubscription.

unsubscribe_from_current()

void ModelView::ItemListenerBase::unsubscribe_from_current ( )

privateinherited

Definition at line 117 of file itemlistenerbase.cpp.

{
    if (!m_item)
        return;
 
    unsubscribe();
 
    m_item->mapper()->unsubscribe(this);
}

Member Data Documentation

m_item

SessionItem* ModelView::ItemListenerBase::m_item {nullptr}

privateinherited

Definition at line 56 of file itemlistenerbase.h.

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

• /home/www/ba/mvvm/model/mvvm/signals/itemlistener.h