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39
40#ifndef QITEMSELECTIONMODEL_P_H
41#define QITEMSELECTIONMODEL_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "private/qobject_p.h"
55
56QT_REQUIRE_CONFIG(itemmodel);
57
58QT_BEGIN_NAMESPACE
59
60class QItemSelectionModelPrivate: public QObjectPrivate
61{
62 Q_DECLARE_PUBLIC(QItemSelectionModel)
63public:
64 QItemSelectionModelPrivate()
65 : model(nullptr),
66 currentCommand(QItemSelectionModel::NoUpdate),
67 tableSelected(false), tableColCount(0), tableRowCount(0) {}
68
69 QItemSelection expandSelection(const QItemSelection &selection,
70 QItemSelectionModel::SelectionFlags command) const;
71
72 void initModel(QAbstractItemModel *model);
73
74 void _q_rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
75 void _q_columnsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
76 void _q_rowsAboutToBeInserted(const QModelIndex &parent, int start, int end);
77 void _q_columnsAboutToBeInserted(const QModelIndex &parent, int start, int end);
78 void _q_layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(), QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint);
79 void _q_layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(), QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint);
80
81 inline void remove(QList<QItemSelectionRange> &r)
82 {
83 QList<QItemSelectionRange>::const_iterator it = r.constBegin();
84 for (; it != r.constEnd(); ++it)
85 ranges.removeAll(*it);
86 }
87
88 inline void finalize()
89 {
90 ranges.merge(currentSelection, currentCommand);
91 if (!currentSelection.isEmpty()) // ### perhaps this should be in QList
92 currentSelection.clear();
93 }
94
95 QPointer<QAbstractItemModel> model;
96 QItemSelection ranges;
97 QItemSelection currentSelection;
98 QPersistentModelIndex currentIndex;
99 QItemSelectionModel::SelectionFlags currentCommand;
100 QList<QPersistentModelIndex> savedPersistentIndexes;
101 QList<QPersistentModelIndex> savedPersistentCurrentIndexes;
102 QList<QPair<QPersistentModelIndex, uint>> savedPersistentRowLengths;
103 QList<QPair<QPersistentModelIndex, uint>> savedPersistentCurrentRowLengths;
104 // optimization when all indexes are selected
105 bool tableSelected;
106 QPersistentModelIndex tableParent;
107 int tableColCount, tableRowCount;
108};
109
110QT_END_NAMESPACE
111
112#endif // QITEMSELECTIONMODEL_P_H
113