1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtCore module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. 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Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QABSTRACTPROXYMODEL_H 41 #define QABSTRACTPROXYMODEL_H 42 43 #include <QtCore/qabstractitemmodel.h> 44 45 QT_REQUIRE_CONFIG(proxymodel); 46 47 QT_BEGIN_NAMESPACE 48 49 class QAbstractProxyModelPrivate; 50 class QItemSelection; 51 52 class Q_CORE_EXPORT QAbstractProxyModel : public QAbstractItemModel 53 { 54 Q_OBJECT 55 Q_PROPERTY(QAbstractItemModel* sourceModel READ sourceModel WRITE setSourceModel NOTIFY sourceModelChanged) 56 57 public: 58 explicit QAbstractProxyModel(QObject *parent = nullptr); 59 ~QAbstractProxyModel(); 60 61 virtual void setSourceModel(QAbstractItemModel *sourceModel); 62 QAbstractItemModel *sourceModel() const; 63 64 Q_INVOKABLE virtual QModelIndex mapToSource(const QModelIndex &proxyIndex) const = 0; 65 Q_INVOKABLE virtual QModelIndex mapFromSource(const QModelIndex &sourceIndex) const = 0; 66 67 Q_INVOKABLE virtual QItemSelection mapSelectionToSource(const QItemSelection &selection) const; 68 Q_INVOKABLE virtual QItemSelection mapSelectionFromSource(const QItemSelection &selection) const; 69 70 bool submit() override; 71 void revert() override; 72 73 QVariant data(const QModelIndex &proxyIndex, int role = Qt::DisplayRole) const override; 74 QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override; 75 QMap<int, QVariant> itemData(const QModelIndex &index) const override; 76 Qt::ItemFlags flags(const QModelIndex &index) const override; 77 78 bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override; 79 bool setItemData(const QModelIndex& index, const QMap<int, QVariant> &roles) override; 80 bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole) override; 81 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) 82 bool clearItemData(const QModelIndex &index) override; 83 #endif 84 85 QModelIndex buddy(const QModelIndex &index) const override; 86 bool canFetchMore(const QModelIndex &parent) const override; 87 void fetchMore(const QModelIndex &parent) override; 88 void sort(int column, Qt::SortOrder order = Qt::AscendingOrder) override; 89 QSize span(const QModelIndex &index) const override; 90 bool hasChildren(const QModelIndex &parent = QModelIndex()) const override; 91 QModelIndex sibling(int row, int column, const QModelIndex &idx) const override; 92 93 QMimeData* mimeData(const QModelIndexList &indexes) const override; 94 bool canDropMimeData(const QMimeData *data, Qt::DropAction action, 95 int row, int column, const QModelIndex &parent) const override; 96 bool dropMimeData(const QMimeData *data, Qt::DropAction action, 97 int row, int column, const QModelIndex &parent) override; 98 QStringList mimeTypes() const override; 99 Qt::DropActions supportedDragActions() const override; 100 Qt::DropActions supportedDropActions() const override; 101 102 Q_SIGNALS: 103 void sourceModelChanged(QPrivateSignal); 104 105 protected Q_SLOTS: 106 void resetInternalData(); 107 108 protected: 109 QAbstractProxyModel(QAbstractProxyModelPrivate &, QObject *parent); 110 111 private: 112 Q_DECLARE_PRIVATE(QAbstractProxyModel) 113 Q_DISABLE_COPY(QAbstractProxyModel) 114 Q_PRIVATE_SLOT(d_func(), void _q_sourceModelDestroyed()) 115 }; 116 117 QT_END_NAMESPACE 118 119 #endif // QABSTRACTPROXYMODEL_H 120