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Make it possible to sort a GTableModel by column+order.

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This is accomplished by putting a GSortingProxyTableModel between the model
and the view. It's pretty simplistic but it works for this use case. :^)
This commit is contained in:
Andreas Kling 2019-03-09 13:33:52 +01:00
parent 0680fe2383
commit 7d1142c7d9
16 changed files with 278 additions and 40 deletions
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35
LibGUI/GSortingProxyTableModel.h Normal file
View file

@ -0,0 +1,35 @@
#pragma once
#include <LibGUI/GTableModel.h>
class GSortingProxyTableModel final : public GTableModel {
public:
explicit GSortingProxyTableModel(OwnPtr<GTableModel>&&);
virtual ~GSortingProxyTableModel() 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&) 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:
GTableModel& target() { return *m_target; }
const GTableModel& target() const { return *m_target; }
void resort();
OwnPtr<GTableModel> m_target;
Vector<int> m_row_mappings;
int m_key_column { -1 };
GSortOrder m_sort_order { GSortOrder::Ascending };
};