ModelView::ViewItem::ViewItemImpl Struct Reference

Collaboration diagram for ModelView::ViewItem::ViewItemImpl:

Public Member Functions
	ViewItemImpl (SessionItem *item, int role)
void	appendRow (std::vector< std::unique_ptr< ViewItem >> items)
ViewItem *	child (int row, int column) const
QVariant	data () const
	Returns item data associated with this RefViewItem. More...
std::vector< ViewItem * >	get_children () const
	Returns vector of children. More...
int	index_of_child (const ViewItem *child)
void	insertRow (int row, std::vector< std::unique_ptr< ViewItem >> items)
ViewItem *	parent ()
void	removeRow (int row)

Public Attributes
std::vector< std::unique_ptr< ViewItem > >	children
int	columns {0}
SessionItem *	item {nullptr}
ViewItem *	parent_view_item {nullptr}
int	role {0}
int	rows {0}
	buffer to hold rows x columns More...

Detailed Description

Definition at line 26 of file viewitem.cpp.

Constructor & Destructor Documentation

ViewItemImpl()

ModelView::ViewItem::ViewItemImpl::ViewItemImpl ( SessionItem *  item, int  role  )

inline

Definition at line 33 of file viewitem.cpp.

: item(item), role(role) {}

Member Function Documentation

appendRow()

void ModelView::ViewItem::ViewItemImpl::appendRow ( std::vector< std::unique_ptr< ViewItem >>  items )

inline

Definition at line 35 of file viewitem.cpp.

    {
        insertRow(rows, std::move(items));
    }

References ModelView::ViewItem::ViewItemImpl::insertRow(), and ModelView::ViewItem::ViewItemImpl::rows.

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child()

ViewItem* ModelView::ViewItem::ViewItemImpl::child ( int  row, int  column  ) const

inline

Definition at line 72 of file viewitem.cpp.

    {
        if (row < 0 || row >= rows)
            throw std::runtime_error("Error in RefViewItem: wrong row)");
 
        if (column < 0 || column >= columns)
            throw std::runtime_error("Error in RefViewItem: wrong column)");
 
        return children.at(static_cast<size_t>(column + row * columns)).get();
    }

References ModelView::ViewItem::ViewItemImpl::children, ModelView::ViewItem::column(), ModelView::ViewItem::ViewItemImpl::columns, ModelView::ViewItem::row(), and ModelView::ViewItem::ViewItemImpl::rows.

Referenced by ModelView::ViewItem::ViewItemImpl::index_of_child().

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data()

QVariant ModelView::ViewItem::ViewItemImpl::data ( ) const

inline

Returns item data associated with this RefViewItem.

Definition at line 92 of file viewitem.cpp.

{ return item ? item->data<QVariant>(role) : QVariant(); }

References ModelView::SessionItem::data(), ModelView::ViewItem::ViewItemImpl::item, and ModelView::ViewItem::ViewItemImpl::role.

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get_children()

std::vector<ViewItem*> ModelView::ViewItem::ViewItemImpl::get_children ( ) const

inline

Returns vector of children.

Definition at line 96 of file viewitem.cpp.

    {
        std::vector<ViewItem*> result;
        std::transform(children.begin(), children.end(), std::back_inserter(result),
                       [](const auto& x) { return x.get(); });
        return result;
    }

References ModelView::ViewItem::ViewItemImpl::children.

index_of_child()

int ModelView::ViewItem::ViewItemImpl::index_of_child ( const ViewItem *  child )

inline

Definition at line 85 of file viewitem.cpp.

    {
        return Utils::IndexOfItem(children.begin(), children.end(), child);
    }

References ModelView::ViewItem::ViewItemImpl::child(), ModelView::ViewItem::ViewItemImpl::children, and ModelView::Utils::IndexOfItem().

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insertRow()

void ModelView::ViewItem::ViewItemImpl::insertRow ( int  row, std::vector< std::unique_ptr< ViewItem >>  items  )

inline

Definition at line 40 of file viewitem.cpp.

    {
        if (items.empty())
            throw std::runtime_error("Error in ViewItemImpl: attempt to insert empty row");
 
        if (columns > 0 && items.size() != static_cast<size_t>(columns))
            throw std::runtime_error("Error in ViewItemImpl: wrong number of columns.");
 
        if (row < 0 || row > rows)
            throw std::runtime_error("Error in ViewItemImpl: invalid row index.");
 
        children.insert(std::next(children.begin(), row * columns),
                        std::make_move_iterator(items.begin()),
                        std::make_move_iterator(items.end()));
 
        columns = static_cast<int>(items.size());
        ++rows;
    }

References ModelView::ViewItem::ViewItemImpl::children, ModelView::ViewItem::ViewItemImpl::columns, ModelView::ViewItem::row(), and ModelView::ViewItem::ViewItemImpl::rows.

Referenced by ModelView::ViewItem::ViewItemImpl::appendRow().

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parent()

ViewItem* ModelView::ViewItem::ViewItemImpl::parent ( )

inline

Definition at line 83 of file viewitem.cpp.

{ return parent_view_item; }

References ModelView::ViewItem::ViewItemImpl::parent_view_item.

removeRow()

void ModelView::ViewItem::ViewItemImpl::removeRow ( int  row )

inline

Definition at line 59 of file viewitem.cpp.

    {
        if (row < 0 || row >= rows)
            throw std::runtime_error("Error in RefViewItem: invalid row index.");
 
        auto begin = std::next(children.begin(), row * columns);
        auto end = std::next(begin, columns);
        children.erase(begin, end);
        --rows;
        if (rows == 0)
            columns = 0;
    }

References ModelView::ViewItem::ViewItemImpl::children, ModelView::ViewItem::ViewItemImpl::columns, ModelView::ViewItem::row(), and ModelView::ViewItem::ViewItemImpl::rows.

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Member Data Documentation

children

std::vector<std::unique_ptr<ViewItem> > ModelView::ViewItem::ViewItemImpl::children

Definition at line 27 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::child(), ModelView::ViewItem::ViewItemImpl::get_children(), ModelView::ViewItem::ViewItemImpl::index_of_child(), ModelView::ViewItem::ViewItemImpl::insertRow(), and ModelView::ViewItem::ViewItemImpl::removeRow().

columns

int ModelView::ViewItem::ViewItemImpl::columns {0}

Definition at line 29 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::child(), ModelView::ViewItem::ViewItemImpl::insertRow(), and ModelView::ViewItem::ViewItemImpl::removeRow().

item

SessionItem* ModelView::ViewItem::ViewItemImpl::item {nullptr}

Definition at line 30 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::data().

parent_view_item

ViewItem* ModelView::ViewItem::ViewItemImpl::parent_view_item {nullptr}

Definition at line 32 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::parent().

role

int ModelView::ViewItem::ViewItemImpl::role {0}

Definition at line 31 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::data().

rows

int ModelView::ViewItem::ViewItemImpl::rows {0}

buffer to hold rows x columns

Definition at line 28 of file viewitem.cpp.

Referenced by ModelView::ViewItem::ViewItemImpl::appendRow(), ModelView::ViewItem::ViewItemImpl::child(), ModelView::ViewItem::ViewItemImpl::insertRow(), and ModelView::ViewItem::ViewItemImpl::removeRow().

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

• /home/www/ba/mvvm/viewmodel/mvvm/viewmodel/viewitem.cpp