abstract_base_model.h

#pragma once
 
// Application headers
#include "include/column_data/column_data.h"
 
// Qt headers
#include <QAbstractTableModel>
#include <QSortFilterProxyModel>
 
namespace ehm_dal::tables {
 
// --- Abstract base class for model classes --- //
// --- Formerly known as ContainerModelBaseClass --- //
class AbstractBaseModel : public QAbstractTableModel
{
public:
    AbstractBaseModel(
        ehm_dal::column_data::ColumnData *column_data = new ehm_dal::column_data::ColumnData(),
        QObject *parent = nullptr);
    virtual ~AbstractBaseModel() override;
 
    // Column data
    ehm_dal::column_data::ColumnData *columnData();
    ehm_dal::column_data::ColumnData *constColumnData() const;
 
    // Get data - counts
    qint32 columnCount(const QModelIndex &parent = QModelIndex()) const override;
    inline qint32 size() const { return rowCount(); }
 
    // Get data - flags
    Qt::ItemFlags flags(const QModelIndex &index) const override;
 
    // Get data - header
    QVariant headerData(qint32 section,
                        Qt::Orientation orientation,
                        qint32 role = Qt::DisplayRole) const override;
 
    // Proxy
    std::unique_ptr<QSortFilterProxyModel> proxy();
 
    // Table model type
    enum class AbstractTableModelType : quint8 {
        AbstractClass,
        GameTable,
        GameChildTable,
        GameChildTreeTable
    };
 
    inline virtual QString modelName() const { return QStringLiteral("Abstract class"); }
    inline virtual constexpr AbstractTableModelType modelType() const
    {
        return AbstractTableModelType::AbstractClass;
    }
 
protected:
    // Modified columns
    bool emitModifiedColumns(const qint32 row,
                             const std::vector<qint32> &modified_columns,
                             const QList<qint32> &modified_roles = QList<qint32>());
 
private:
    // Column data
    std::unique_ptr<ehm_dal::column_data::ColumnData> column_data_;
    enum ENUM_FLAGS { LARGE_TABLE_THRESHOLD = 100 };
 
    // Reset
    inline virtual bool clearAllData() { return false; }
};
 
} // namespace ehm_dal::tables