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Diffstat (limited to 'src/labs/models/qqmltablemodel_p.h')
| -rw-r--r-- | src/labs/models/qqmltablemodel_p.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/labs/models/qqmltablemodel_p.h b/src/labs/models/qqmltablemodel_p.h new file mode 100644 index 0000000000..9157c989d3 --- /dev/null +++ b/src/labs/models/qqmltablemodel_p.h @@ -0,0 +1,143 @@ +// Copyright (C) 2019 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 QQMLTABLEMODEL_P_H +#define QQMLTABLEMODEL_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 "qqmlmodelsglobal_p.h" +#include "qqmltablemodelcolumn_p.h" + +#include <QtCore/QObject> +#include <QtCore/QHash> +#include <QtCore/QAbstractTableModel> +#include <QtQml/qqml.h> +#include <QtQmlModels/private/qtqmlmodelsglobal_p.h> +#include <QtQml/QJSValue> +#include <QtQml/QQmlListProperty> + +QT_REQUIRE_CONFIG(qml_table_model); + +QT_BEGIN_NAMESPACE + +class Q_LABSQMLMODELS_EXPORT QQmlTableModel : public QAbstractTableModel, public QQmlParserStatus +{ + Q_OBJECT + Q_PROPERTY(int columnCount READ columnCount NOTIFY columnCountChanged FINAL) + Q_PROPERTY(int rowCount READ rowCount NOTIFY rowCountChanged FINAL) + Q_PROPERTY(QVariant rows READ rows WRITE setRows NOTIFY rowsChanged FINAL) + Q_PROPERTY(QQmlListProperty<QQmlTableModelColumn> columns READ columns CONSTANT FINAL) + Q_INTERFACES(QQmlParserStatus) + Q_CLASSINFO("DefaultProperty", "columns") + QML_NAMED_ELEMENT(TableModel) + QML_ADDED_IN_VERSION(1, 0) + +public: + QQmlTableModel(QObject *parent = nullptr); + ~QQmlTableModel() override; + + QVariant rows() const; + void setRows(const QVariant &rows); + + Q_INVOKABLE void appendRow(const QVariant &row); + Q_INVOKABLE void clear(); + Q_INVOKABLE QVariant getRow(int rowIndex); + Q_INVOKABLE void insertRow(int rowIndex, const QVariant &row); + Q_INVOKABLE void moveRow(int fromRowIndex, int toRowIndex, int rows = 1); + Q_INVOKABLE void removeRow(int rowIndex, int rows = 1); + Q_INVOKABLE void setRow(int rowIndex, const QVariant &row); + + 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); + + QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override; + int rowCount(const QModelIndex &parent = QModelIndex()) const override; + int columnCount(const QModelIndex &parent = QModelIndex()) const override; + Q_INVOKABLE QVariant data(const QModelIndex &index, const QString &role) const; + QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override; + Q_INVOKABLE bool setData(const QModelIndex &index, const QString &role, const QVariant &value); + 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 rowCountChanged(); + void rowsChanged(); + +protected: + void classBegin() override; + void componentComplete() override; + +private: + class ColumnRoleMetadata + { + public: + ColumnRoleMetadata(); + ColumnRoleMetadata(bool isStringRole, const QString &name, int type, const QString &typeName); + + bool isValid() const; + + // If this is false, it's a function role. + bool isStringRole = false; + 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; + }; + + enum NewRowOperationFlag { + OtherOperation, // insert(), set(), etc. + SetRowsOperation, + AppendOperation + }; + + void doSetRows(const QVariantList &rowsAsVariantList); + ColumnRoleMetadata fetchColumnRoleData(const QString &roleNameKey, + QQmlTableModelColumn *tableModelColumn, int columnIndex) const; + void fetchColumnMetadata(); + + bool validateRowType(const char *functionName, const QVariant &row) const; + bool validateNewRow(const char *functionName, const QVariant &row, + int rowIndex, NewRowOperationFlag operation = OtherOperation) const; + bool validateRowIndex(const char *functionName, const char *argumentName, int rowIndex) const; + + void doInsert(int rowIndex, const QVariant &row); + + bool componentCompleted = false; + QVariantList mRows; + QList<QQmlTableModelColumn *> mColumns; + int mRowCount = 0; + 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 // QQMLTABLEMODEL_P_H |