+// ----------------------------------------------------------------------------
+// wxDataViewListModel: a model of a list, i.e. flat data structure without any
+// branches/containers, used as base class by wxDataViewIndexListModel and
+// wxDataViewVirtualListModel
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_ADV wxDataViewListModel : public wxDataViewModel
+{
+public:
+ // derived classes should override these methods instead of
+ // {Get,Set}Value() and GetAttr() inherited from the base class
+
+ virtual void GetValueByRow(wxVariant &variant,
+ unsigned row, unsigned col) const = 0;
+
+ virtual bool SetValueByRow(const wxVariant &variant,
+ unsigned row, unsigned col) = 0;
+
+ virtual bool
+ GetAttrByRow(unsigned WXUNUSED(row), unsigned WXUNUSED(col),
+ wxDataViewItemAttr &WXUNUSED(attr)) const
+ {
+ return false;
+ }
+
+
+ // helper methods provided by list models only
+ virtual unsigned GetRow( const wxDataViewItem &item ) const = 0;
+
+
+ // implement some base class pure virtual directly
+ virtual wxDataViewItem
+ GetParent( const wxDataViewItem & WXUNUSED(item) ) const
+ {
+ // items never have valid parent in this model
+ return wxDataViewItem();
+ }
+
+ virtual bool IsContainer( const wxDataViewItem &item ) const
+ {
+ // only the invisible (and invalid) root item has children
+ return !item.IsOk();
+ }
+
+ // and implement some others by forwarding them to our own ones
+ virtual void GetValue( wxVariant &variant,
+ const wxDataViewItem &item, unsigned int col ) const
+ {
+ GetValueByRow(variant, GetRow(item), col);
+ }
+
+ virtual bool SetValue( const wxVariant &variant,
+ const wxDataViewItem &item, unsigned int col )
+ {
+ return SetValueByRow( variant, GetRow(item), col );
+ }
+
+ virtual bool GetAttr(const wxDataViewItem &item, unsigned int col,
+ wxDataViewItemAttr &attr) const
+ {
+ return GetAttrByRow( GetRow(item), col, attr );
+ }
+};
+
projects / wxWidgets.git / blobdiff