| 1 | /**************************************************************************** | 
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| 2 | ** | 
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| 3 | ** Copyright (C) 2016 The Qt Company Ltd. | 
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| 4 | ** Contact: https://www.qt.io/licensing/ | 
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| 5 | ** | 
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| 6 | ** This file is part of the examples of the Qt Toolkit. | 
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| 7 | ** | 
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| 8 | ** $QT_BEGIN_LICENSE:BSD$ | 
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| 9 | ** Commercial License Usage | 
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| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | 
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| 15 | ** information use the contact form at https://www.qt.io/contact-us. | 
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| 16 | ** | 
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| 17 | ** BSD License Usage | 
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| 18 | ** Alternatively, you may use this file under the terms of the BSD license | 
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| 19 | ** as follows: | 
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| 20 | ** | 
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| 21 | ** "Redistribution and use in source and binary forms, with or without | 
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| 22 | ** modification, are permitted provided that the following conditions are | 
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| 23 | ** met: | 
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| 24 | **   * Redistributions of source code must retain the above copyright | 
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| 25 | **     notice, this list of conditions and the following disclaimer. | 
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| 26 | **   * Redistributions in binary form must reproduce the above copyright | 
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| 27 | **     notice, this list of conditions and the following disclaimer in | 
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| 28 | **     the documentation and/or other materials provided with the | 
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| 29 | **     distribution. | 
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| 30 | **   * Neither the name of The Qt Company Ltd nor the names of its | 
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| 31 | **     contributors may be used to endorse or promote products derived | 
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| 32 | **     from this software without specific prior written permission. | 
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| 35 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
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| 45 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." | 
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| 46 | ** | 
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| 47 | ** $QT_END_LICENSE$ | 
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| 48 | ** | 
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| 49 | ****************************************************************************/ | 
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| 50 |  | 
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| 51 | //! [Quoting ModelView Tutorial] | 
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| 52 | // modelview.cpp | 
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| 53 | #include "mainwindow.h" | 
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| 54 |  | 
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| 55 | #include <QTreeView> | 
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| 56 | #include <QStandardItemModel> | 
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| 57 | #include <QStandardItem> | 
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| 58 |  | 
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| 59 | MainWindow::MainWindow(QWidget *parent) | 
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| 60 | : QMainWindow(parent) | 
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| 61 | , treeView(new QTreeView(this)) | 
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| 62 | , standardModel(new QStandardItemModel(this)) | 
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| 63 | { | 
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| 64 | setCentralWidget(treeView); | 
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| 65 |  | 
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| 66 | QList<QStandardItem *> preparedRow = prepareRow( "first", "second", "third"); | 
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| 67 | QStandardItem *item = standardModel->invisibleRootItem(); | 
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| 68 | // adding a row to the invisible root item produces a root element | 
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| 69 | item->appendRow(preparedRow); | 
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| 70 |  | 
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| 71 | QList<QStandardItem *> secondRow = prepareRow( "111", "222", "333"); | 
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| 72 | // adding a row to an item starts a subtree | 
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| 73 | preparedRow.first()->appendRow(secondRow); | 
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| 74 |  | 
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| 75 | treeView->setModel(standardModel); | 
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| 76 | treeView->expandAll(); | 
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| 77 | } | 
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| 78 |  | 
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| 79 | QList<QStandardItem *> MainWindow::prepareRow(const QString &first, | 
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| 80 | const QString &second, | 
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| 81 | const QString &third) const | 
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| 82 | { | 
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| 83 | return {new QStandardItem(first), | 
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| 84 | new QStandardItem(second), | 
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| 85 | new QStandardItem(third)}; | 
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| 86 | } | 
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| 87 | //! [Quoting ModelView Tutorial] | 
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| 88 |  | 
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