1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Assistant 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 http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 #ifndef BOOKMARKFILTERMODEL_H 42 #define BOOKMARKFILTERMODEL_H 43 44 #include <QtCore/QPersistentModelIndex> 45 46 #include <QtGui/QAbstractProxyModel> 47 #include <QtGui/QSortFilterProxyModel> 48 49 QT_BEGIN_NAMESPACE 50 51 class BookmarkItem; 52 class BookmarkModel; 53 54 typedef QList<QPersistentModelIndex> PersistentModelIndexCache; 55 56 class BookmarkFilterModel : public QAbstractProxyModel 57 { 58 Q_OBJECT 59 public: 60 explicit BookmarkFilterModel(QObject *parent = 0); 61 62 void setSourceModel(QAbstractItemModel *sourceModel); 63 64 int rowCount(const QModelIndex &index) const; 65 int columnCount(const QModelIndex &index) const; 66 67 QModelIndex mapToSource(const QModelIndex &proxyIndex) const; 68 QModelIndex mapFromSource(const QModelIndex &sourceIndex) const; 69 70 QModelIndex parent(const QModelIndex &child) const; 71 QModelIndex index(int row, int column, const QModelIndex &parent) const; 72 73 Qt::DropActions supportedDropActions () const; 74 Qt::ItemFlags flags(const QModelIndex &index) const; 75 76 QVariant data(const QModelIndex &index, int role) const; 77 bool setData(const QModelIndex &index, const QVariant &value, int role); 78 79 void filterBookmarks(); 80 void filterBookmarkFolders(); 81 82 private slots: 83 void changed(const QModelIndex &topLeft, const QModelIndex &bottomRight); 84 void rowsInserted(const QModelIndex &parent, int start, int end); 85 void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end); 86 void rowsRemoved(const QModelIndex &parent, int start, int end); 87 void layoutAboutToBeChanged(); 88 void layoutChanged(); 89 void modelAboutToBeReset(); 90 void modelReset(); 91 92 private: 93 void setupCache(const QModelIndex &parent); 94 void collectItems(const QModelIndex &parent); 95 96 private: 97 bool hideBookmarks; 98 BookmarkModel *sourceModel; 99 PersistentModelIndexCache cache; 100 QPersistentModelIndex indexToRemove; 101 }; 102 103 // -- BookmarkTreeModel 104 105 class BookmarkTreeModel : public QSortFilterProxyModel 106 { 107 Q_OBJECT 108 public: 109 BookmarkTreeModel(QObject *parent = 0); 110 int columnCount(const QModelIndex &parent = QModelIndex()) const; 111 112 protected: 113 bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const; 114 }; 115 116 QT_END_NAMESPACE 117 118 #endif // BOOKMARKFILTERMODEL_H 119