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 documentation of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:BSD$ 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. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** BSD License Usage 18 ** Alternatively, you may use this file under the terms of the BSD license 19 ** as follows: 20 ** 21 ** "Redistribution and use in source and binary forms, with or without 22 ** modification, are permitted provided that the following conditions are 23 ** met: 24 ** * Redistributions of source code must retain the above copyright 25 ** notice, this list of conditions and the following disclaimer. 26 ** * Redistributions in binary form must reproduce the above copyright 27 ** notice, this list of conditions and the following disclaimer in 28 ** the documentation and/or other materials provided with the 29 ** distribution. 30 ** * Neither the name of The Qt Company Ltd nor the names of its 31 ** contributors may be used to endorse or promote products derived 32 ** from this software without specific prior written permission. 33 ** 34 ** 35 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 38 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 39 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 42 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 43 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 44 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 45 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." 46 ** 47 ** $QT_END_LICENSE$ 48 ** 49 ****************************************************************************/ 50 51 //! [0] 52 beginInsertRows(parent, 2, 4); 53 //! [0] 54 55 56 //! [1] 57 beginInsertRows(parent, 4, 5); 58 //! [1] 59 60 61 //! [2] 62 beginRemoveRows(parent, 2, 3); 63 //! [2] 64 65 66 //! [3] 67 beginInsertColumns(parent, 4, 6); 68 //! [3] 69 70 71 //! [4] 72 beginInsertColumns(parent, 6, 8); 73 //! [4] 74 75 76 //! [5] 77 beginRemoveColumns(parent, 4, 6); 78 //! [5] 79 80 81 //! [6] 82 beginMoveRows(sourceParent, 2, 4, destinationParent, 2); 83 //! [6] 84 85 86 //! [7] 87 beginMoveRows(sourceParent, 2, 4, destinationParent, 6); 88 //! [7] 89 90 91 //! [8] 92 beginMoveRows(parent, 2, 2, parent, 0); 93 //! [8] 94 95 96 //! [9] 97 beginMoveRows(parent, 2, 2, parent, 4); 98 //! [9] 99 100 //! [10] 101 myData.clear(); 102 reset(); 103 //! [10] 104 105 //! [11] 106 beginResetModel(); 107 myData.clear(); 108 endResetModel(); 109 //! [11] 110 111 //! [12] 112 class CustomDataProxy : public QSortFilterProxyModel 113 { 114 Q_OBJECT 115 public: CustomDataProxy(QObject * parent)116 CustomDataProxy(QObject *parent) 117 : QSortFilterProxyModel(parent) 118 { 119 } 120 121 ... 122 123 QVariant data(const QModelIndex &index, int role) override 124 { 125 if (role != Qt::BackgroundRole) 126 return QSortFilterProxyModel::data(index, role); 127 128 if (m_customData.contains(index.row())) 129 return m_customData.value(index.row()); 130 return QSortFilterProxyModel::data(index, role); 131 } 132 133 private slots: resetInternalData()134 void resetInternalData() 135 { 136 m_customData.clear(); 137 } 138 139 private: 140 QHash<int, QVariant> m_customData; 141 }; 142 //! [12] 143 144