gui2::DataSelectionModel Class Reference

Custom selection model for data view model (AbstractViewModel). More...

Inheritance diagram for gui2::DataSelectionModel:

Collaboration diagram for gui2::DataSelectionModel:

Public Member Functions
	DataSelectionModel (ModelView::ViewModel *view_model, QObject *parent=nullptr)
	The constructor. More...
	~DataSelectionModel ()=default
CanvasItem *	activeCanvas () const
	Returns active canvas. More...
std::vector< CanvasItem * >	selectedCanvas () const
	Returns vector of currently slected canvas. More...
ModelView::GraphItem *	selectedGraph () const
	Returns currently selected graph. If more than one graph is selected, will return first one. More...
std::vector< ModelView::GraphItem * >	selectedGraphs () const
std::vector< ModelView::SessionItem * >	selectedItems () const
	Return the selected items. More...
void	selectItem (ModelView::SessionItem *item)
	Set the selection on a single item. More...
void	selectItems (std::vector< ModelView::SessionItem * > items)
	Set the selection on a list of items. More...
const ModelView::ViewModel *	viewModel () const

Detailed Description

Custom selection model for data view model (AbstractViewModel).

Definition at line 34 of file dataselectionmodel.h.

Constructor & Destructor Documentation

DataSelectionModel()

gui2::DataSelectionModel::DataSelectionModel	(	ModelView::ViewModel *	view_model,
		QObject *	parent = nullptr
	)

The constructor.

Definition at line 28 of file dataselectionmodel.cpp.

    : QItemSelectionModel(view_model, parent)
{
    // FIXME cover with unit tests after implementing ViewItemSelectionModel
    connect(view_model, &ModelView::ViewModel::modelAboutToBeReset, [this]() { clearSelection(); });
}

~DataSelectionModel()

gui2::DataSelectionModel::~DataSelectionModel ( )

default

Member Function Documentation

activeCanvas()

CanvasItem * gui2::DataSelectionModel::activeCanvas

(

)

const

Returns active canvas.

The canvas is active when it is either selected, or one of its own graph is selected. If more than one canvas is selected, will return the first one.

Definition at line 73 of file dataselectionmodel.cpp.

{
    for (auto item : selectedItems()) {
        if (item->modelType() == Constants::CanvasItemType)
            return static_cast<CanvasItem*>(item);
        else if (item->modelType() == ModelView::Constants::GraphItemType)
            return static_cast<CanvasItem*>(item->parent());
    }
    return nullptr;
}

References gui2::Constants::CanvasItemType, ModelView::Constants::GraphItemType, and selectedItems().

Referenced by gui2::ImportDataEditor::canvasInfo(), gui2::DataSelectorWidget::onSelectionChanged(), and gui2::ImportDataEditor::setupConnections().

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selectedCanvas()

std::vector< CanvasItem * > gui2::DataSelectionModel::selectedCanvas

(

)

const

Returns vector of currently slected canvas.

Definition at line 94 of file dataselectionmodel.cpp.

{
    return ModelView::Utils::CastedItems<CanvasItem>(selectedItems());
}

References selectedItems().

Referenced by gui2::ImportDataEditorActions::onDeleteItem(), and gui2::ImportDataEditorActions::onMergeCanvases().

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selectedGraph()

ModelView::GraphItem * gui2::DataSelectionModel::selectedGraph

(

)

const

Returns currently selected graph. If more than one graph is selected, will return first one.

Definition at line 86 of file dataselectionmodel.cpp.

{
    auto graphs = selectedGraphs();
    return graphs.empty() ? nullptr : graphs.at(0);
}

References selectedGraphs().

Referenced by gui2::DataSelectorWidget::onSelectionChanged().

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selectedGraphs()

std::vector< ModelView::GraphItem * > gui2::DataSelectionModel::selectedGraphs

(

)

const

Definition at line 99 of file dataselectionmodel.cpp.

{
    return ModelView::Utils::CastedItems<ModelView::GraphItem>(selectedItems());
}

References selectedItems().

Referenced by gui2::ImportDataEditorActions::onDeleteItem(), and selectedGraph().

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selectedItems()

std::vector< ModelView::SessionItem * > gui2::DataSelectionModel::selectedItems

(

)

const

Return the selected items.

Definition at line 59 of file dataselectionmodel.cpp.

{
    auto items = ModelView::Utils::ItemsFromIndex(selectedIndexes());
    return ModelView::Utils::UniqueItems(items);
}

References ModelView::Utils::ItemsFromIndex(), and ModelView::Utils::UniqueItems().

Referenced by activeCanvas(), selectedCanvas(), and selectedGraphs().

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selectItem()

void gui2::DataSelectionModel::selectItem

(

ModelView::SessionItem *

item

)

Set the selection on a single item.

Definition at line 36 of file dataselectionmodel.cpp.

{
    selectItems({item});
}

References selectItems().

Referenced by gui2::ImportDataEditor::onImportDialogAccept().

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selectItems()

void gui2::DataSelectionModel::selectItems

(

std::vector< ModelView::SessionItem * >

items

)

Set the selection on a list of items.

Definition at line 42 of file dataselectionmodel.cpp.

{
    QModelIndexList indexes;
    for (auto item : items)
        indexes << viewModel()->indexOfSessionItem(item);
 
    if (indexes.empty())
        return;
 
    clearSelection();
 
    QItemSelection selection(indexes.front(), indexes.back());
    auto flags = QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows;
    select(selection, flags);
}

References ModelView::ViewModel::indexOfSessionItem(), and viewModel().

Referenced by selectItem().

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viewModel()

const ModelView::ViewModel * gui2::DataSelectionModel::viewModel

(

)

const

Definition at line 65 of file dataselectionmodel.cpp.

{
    return static_cast<const ModelView::ViewModel*>(model());
}

Referenced by selectItems().

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

• /home/www/ba/gui2/importdataview/dataselectionmodel.h
• /home/www/ba/gui2/importdataview/dataselectionmodel.cpp