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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLABSTRACTCOLUMNMODEL_P_H
#define QQMLABSTRACTCOLUMNMODEL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qqmltablemodelcolumn_p.h"
#include <QtCore/qabstractitemmodel.h>
#include <QtCore/qvariant.h>
QT_BEGIN_NAMESPACE
class Q_LABSQMLMODELS_EXPORT QQmlAbstractColumnModel : public QAbstractItemModel, public QQmlParserStatus
{
Q_OBJECT
QML_ANONYMOUS
Q_PROPERTY(int columnCount READ columnCount NOTIFY columnCountChanged FINAL)
Q_PROPERTY(QQmlListProperty<QQmlTableModelColumn> columns READ columns CONSTANT FINAL)
Q_INTERFACES(QQmlParserStatus)
Q_CLASSINFO("DefaultProperty", "columns")
public:
Q_DISABLE_COPY_MOVE(QQmlAbstractColumnModel)
explicit QQmlAbstractColumnModel(QObject *parent = nullptr);
~QQmlAbstractColumnModel() override = default;
QQmlListProperty<QQmlTableModelColumn> columns();
static void columns_append(QQmlListProperty<QQmlTableModelColumn> *property, QQmlTableModelColumn *value);
static qsizetype columns_count(QQmlListProperty<QQmlTableModelColumn> *property);
static QQmlTableModelColumn *columns_at(QQmlListProperty<QQmlTableModelColumn> *property, qsizetype index);
static void columns_clear(QQmlListProperty<QQmlTableModelColumn> *property);
static void columns_replace(QQmlListProperty<QQmlTableModelColumn> *property, qsizetype index, QQmlTableModelColumn *value);
static void columns_removeLast(QQmlListProperty<QQmlTableModelColumn> *property);
Q_INVOKABLE QVariant data(const QModelIndex &index, const QString &role) const;
Q_INVOKABLE QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
Q_INVOKABLE bool setData(const QModelIndex &index, const QVariant &value, const QString &role);
Q_INVOKABLE bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::DisplayRole) override;
QHash<int, QByteArray> roleNames() const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
Q_SIGNALS:
void columnCountChanged();
void rowsChanged();
protected:
void classBegin() override;
void componentComplete() override;
virtual QVariant firstRow() const = 0;
virtual void setInitialRows() = 0;
virtual QVariant dataPrivate(const QModelIndex &index, const QString &roleName) const = 0;
virtual void setDataPrivate(const QModelIndex &index, const QString &roleName, QVariant value) = 0;
enum class ColumnRole : quint8
{
StringRole,
FunctionRole
};
class ColumnRoleMetadata
{
public:
ColumnRoleMetadata();
ColumnRoleMetadata(ColumnRole role, QString name, int type, QString typeName);
bool isValid() const;
ColumnRole columnRole = ColumnRole::FunctionRole;
QString name;
int type = QMetaType::UnknownType;
QString typeName;
};
struct ColumnMetadata
{
// Key = role name that will be made visible to the delegate
// Value = metadata about that role, including actual name in the model data, type, etc.
QHash<QString, ColumnRoleMetadata> roles;
};
ColumnRoleMetadata fetchColumnRoleData(const QString &roleNameKey, QQmlTableModelColumn *tableModelColumn, int columnIndex) const;
void fetchColumnMetadata();
enum NewRowOperationFlag {
OtherOperation, // insert(), set(), etc.
SetRowsOperation,
AppendOperation
};
bool validateRowType(QLatin1StringView functionName, const QVariant &row) const;
virtual bool validateNewRow(QLatin1StringView functionName, const QVariant &row,
NewRowOperationFlag operation = OtherOperation) const;
QList<QQmlTableModelColumn *> mColumns;
bool mComponentCompleted = false;
int mColumnCount = 0;
// Each entry contains information about the properties of the column at that index.
QVector<ColumnMetadata> mColumnMetadata;
// key = property index (0 to number of properties across all columns)
// value = role name
QHash<int, QByteArray> mRoleNames;
};
QT_END_NAMESPACE
#endif // QQMLABSTRACTCOLUMNMODEL_P_H
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