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 Qt Data Visualization module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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16 | ** |
17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
21 | ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
22 | ** included in the packaging of this file. Please review the following |
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26 | ** $QT_END_LICENSE$ |
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28 | ****************************************************************************/ |
29 | |
30 | // |
31 | // W A R N I N G |
32 | // ------------- |
33 | // |
34 | // This file is not part of the QtDataVisualization API. It exists purely as an |
35 | // implementation detail. This header file may change from version to |
36 | // version without notice, or even be removed. |
37 | // |
38 | // We mean it. |
39 | |
40 | #ifndef ABSTRACTITEMMODELHANDLER_P_H |
41 | #define ABSTRACTITEMMODELHANDLER_P_H |
42 | |
43 | #include "datavisualizationglobal_p.h" |
44 | #include <QtCore/QAbstractItemModel> |
45 | #include <QtCore/QPointer> |
46 | #include <QtCore/QTimer> |
47 | |
48 | QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
49 | |
50 | class AbstractItemModelHandler : public QObject |
51 | { |
52 | Q_OBJECT |
53 | public: |
54 | AbstractItemModelHandler(QObject *parent = 0); |
55 | virtual ~AbstractItemModelHandler(); |
56 | |
57 | virtual void setItemModel(QAbstractItemModel *itemModel); |
58 | virtual QAbstractItemModel *itemModel() const; |
59 | |
60 | public Q_SLOTS: |
61 | virtual void handleColumnsInserted(const QModelIndex &parent, int start, int end); |
62 | virtual void handleColumnsMoved(const QModelIndex &sourceParent, int sourceStart, |
63 | int sourceEnd, const QModelIndex &destinationParent, |
64 | int destinationColumn); |
65 | virtual void handleColumnsRemoved(const QModelIndex &parent, int start, int end); |
66 | virtual void handleDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, |
67 | const QVector<int> &roles = QVector<int> ()); |
68 | virtual void handleLayoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(), |
69 | QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint); |
70 | virtual void handleModelReset(); |
71 | virtual void handleRowsInserted(const QModelIndex &parent, int start, int end); |
72 | virtual void handleRowsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, |
73 | const QModelIndex &destinationParent, int destinationRow); |
74 | virtual void handleRowsRemoved(const QModelIndex &parent, int start, int end); |
75 | |
76 | virtual void handleMappingChanged(); |
77 | virtual void handlePendingResolve(); |
78 | |
79 | Q_SIGNALS: |
80 | void itemModelChanged(const QAbstractItemModel *itemModel); |
81 | |
82 | protected: |
83 | virtual void resolveModel() = 0; |
84 | |
85 | QPointer<QAbstractItemModel> m_itemModel; // Not owned |
86 | bool resolvePending; |
87 | QTimer m_resolveTimer; |
88 | bool m_fullReset; |
89 | |
90 | private: |
91 | Q_DISABLE_COPY(AbstractItemModelHandler) |
92 | }; |
93 | |
94 | QT_END_NAMESPACE_DATAVISUALIZATION |
95 | |
96 | #endif |
97 | |