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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the Qt Assistant of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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27****************************************************************************/
28#ifndef BOOKMARKFILTERMODEL_H
29#define BOOKMARKFILTERMODEL_H
30
31#include <QtCore/QPersistentModelIndex>
32
33#include <QtCore/QAbstractProxyModel>
34#include <QtCore/QSortFilterProxyModel>
35
36QT_BEGIN_NAMESPACE
37
38class BookmarkItem;
39class BookmarkModel;
40
41typedef QList<QPersistentModelIndex> PersistentModelIndexCache;
42
43class BookmarkFilterModel : public QAbstractProxyModel
44{
45 Q_OBJECT
46public:
47 explicit BookmarkFilterModel(QObject *parent = nullptr);
48
49 void setSourceModel(QAbstractItemModel *sourceModel) override;
50
51 int rowCount(const QModelIndex &index) const override;
52 int columnCount(const QModelIndex &index) const override;
53
54 QModelIndex mapToSource(const QModelIndex &proxyIndex) const override;
55 QModelIndex mapFromSource(const QModelIndex &sourceIndex) const override;
56
57 QModelIndex parent(const QModelIndex &child) const override;
58 QModelIndex index(int row, int column, const QModelIndex &parent) const override;
59
60 Qt::DropActions supportedDropActions () const override;
61 Qt::ItemFlags flags(const QModelIndex &index) const override;
62
63 QVariant data(const QModelIndex &index, int role) const override;
64 bool setData(const QModelIndex &index, const QVariant &value, int role) override;
65
66 void filterBookmarks();
67 void filterBookmarkFolders();
68
69private slots:
70 void changed(const QModelIndex &topLeft, const QModelIndex &bottomRight);
71 void rowsInserted(const QModelIndex &parent, int start, int end);
72 void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
73 void rowsRemoved(const QModelIndex &parent, int start, int end);
74 void layoutAboutToBeChanged();
75 void layoutChanged();
76 void modelAboutToBeReset();
77 void modelReset();
78
79private:
80 void setupCache(const QModelIndex &parent);
81 void collectItems(const QModelIndex &parent);
82
83private:
84 BookmarkModel *sourceModel = nullptr;
85 PersistentModelIndexCache cache;
86 QPersistentModelIndex indexToRemove;
87 bool hideBookmarks = true;
88};
89
90// -- BookmarkTreeModel
91
92class BookmarkTreeModel : public QSortFilterProxyModel
93{
94 Q_OBJECT
95public:
96 BookmarkTreeModel(QObject *parent = nullptr);
97 int columnCount(const QModelIndex &parent = QModelIndex()) const override;
98
99protected:
100 bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
101};
102
103QT_END_NAMESPACE
104
105#endif // BOOKMARKFILTERMODEL_H
106

source code of qttools/src/assistant/assistant/bookmarkfiltermodel.h