Refactoring generic tree model behavior

scwx-qt/source/scwx/qt/model/tree_model.hpp

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <scwx/qt/model/tree_item.hpp>
+
+#include <QAbstractTableModel>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+class TreeModelImpl;
+
+class TreeModel : public QAbstractTableModel
+{
+public:
+   explicit TreeModel(QObject* parent = nullptr);
+   virtual ~TreeModel();
+
+   int rowCount(const QModelIndex& parent = QModelIndex()) const override;
+   int columnCount(const QModelIndex& parent = QModelIndex()) const override;
+
+   QVariant      data(const QModelIndex& index,
+                      int                role = Qt::DisplayRole) const override;
+   Qt::ItemFlags flags(const QModelIndex& index) const override;
+   QVariant      headerData(int             section,
+                            Qt::Orientation orientation,
+                            int             role = Qt::DisplayRole) const override;
+   QModelIndex   index(int                row,
+                       int                column,
+                       const QModelIndex& parent = QModelIndex()) const override;
+   QModelIndex   parent(const QModelIndex& index) const override;
+
+protected:
+   virtual const std::shared_ptr<TreeItem> root_item() const = 0;
+
+private:
+   std::unique_ptr<TreeModelImpl> p;
+};
+
+} // namespace model
+} // namespace qt
+} // namespace scwx