47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
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#pragma once
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#include <QAbstractListModel>
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#include <optional>
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class SectionsDecoratorModel : public QAbstractListModel
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{
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Q_OBJECT
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Q_PROPERTY(QAbstractItemModel* sourceModel READ sourceModel
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WRITE setSourceModel NOTIFY sourceModelChanged)
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public:
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static constexpr int IsSectionRole = Qt::UserRole + 100;
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static constexpr int IsFoldedRole = Qt::UserRole + 101;
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static constexpr int SubitemsCountRole = Qt::UserRole + 102;
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explicit SectionsDecoratorModel(QObject *parent = nullptr);
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void setSourceModel(QAbstractItemModel *sourceModel);
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QAbstractItemModel *sourceModel() const;
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int rowCount(const QModelIndex &parent = QModelIndex()) const override;
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QVariant data(const QModelIndex &index, int role) const override;
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QHash<int, QByteArray> roleNames() const override;
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Q_INVOKABLE void flipFolding(int index);
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signals:
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void sourceModelChanged();
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private:
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struct RowMetadata {
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bool isSection = false;
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QString sectionName;
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bool folded = false;
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int offset = 0;
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int count = 0;
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};
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std::optional<int> findSectionRole() const;
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void initialize();
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void calculateOffsets();
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QAbstractItemModel* m_sourceModel = nullptr;
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std::vector<RowMetadata> m_rowsMetadata;
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int m_sectionRole = 0;
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};
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