ladybird/LibGUI/GSortingProxyModel.h
2019-03-23 01:42:49 +01:00

37 lines
1.3 KiB
C++

#pragma once
#include <LibGUI/GModel.h>
class GSortingProxyModel final : public GModel {
public:
static Retained<GSortingProxyModel> create(Retained<GModel>&& model) { return adopt(*new GSortingProxyModel(move(model))); }
virtual ~GSortingProxyModel() override;
virtual int row_count() const override;
virtual int column_count() const override;
virtual String row_name(int) const override;
virtual String column_name(int) const override;
virtual ColumnMetadata column_metadata(int) const override;
virtual GVariant data(const GModelIndex&, Role = Role::Display) const override;
virtual void update() override;
virtual void activate(const GModelIndex&) override;
virtual int key_column() const override { return m_key_column; }
virtual GSortOrder sort_order() const override { return m_sort_order; }
virtual void set_key_column_and_sort_order(int, GSortOrder) override;
GModelIndex map_to_target(const GModelIndex&) const;
private:
explicit GSortingProxyModel(Retained<GModel>&&);
GModel& target() { return *m_target; }
const GModel& target() const { return *m_target; }
void resort();
Retained<GModel> m_target;
Vector<int> m_row_mappings;
int m_key_column { -1 };
GSortOrder m_sort_order { GSortOrder::Ascending };
};