diff options
Diffstat (limited to 'examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp')
| -rw-r--r-- | examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp | 83 |
1 files changed, 18 insertions, 65 deletions
diff --git a/examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp b/examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp index 2b10071a68..3bedb2f82c 100644 --- a/examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp +++ b/examples/widgets/tutorials/modelview/7_selections/mainwindow.cpp @@ -1,52 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause //! [quoting modelview_a] #include "mainwindow.h" @@ -61,20 +14,20 @@ MainWindow::MainWindow(QWidget *parent) , standardModel(new QStandardItemModel(this)) { setCentralWidget(treeView); - QStandardItem *rootNode = standardModel->invisibleRootItem(); + auto *rootNode = standardModel->invisibleRootItem(); - //defining a couple of items - QStandardItem *americaItem = new QStandardItem("America"); - QStandardItem *mexicoItem = new QStandardItem("Canada"); - QStandardItem *usaItem = new QStandardItem("USA"); - QStandardItem *bostonItem = new QStandardItem("Boston"); - QStandardItem *europeItem = new QStandardItem("Europe"); - QStandardItem *italyItem = new QStandardItem("Italy"); - QStandardItem *romeItem = new QStandardItem("Rome"); - QStandardItem *veronaItem = new QStandardItem("Verona"); + // defining a couple of items + auto *americaItem = new QStandardItem("America"); + auto *mexicoItem = new QStandardItem("Canada"); + auto *usaItem = new QStandardItem("USA"); + auto *bostonItem = new QStandardItem("Boston"); + auto *europeItem = new QStandardItem("Europe"); + auto *italyItem = new QStandardItem("Italy"); + auto *romeItem = new QStandardItem("Rome"); + auto *veronaItem = new QStandardItem("Verona"); - //building up the hierarchy + // building up the hierarchy rootNode-> appendRow(americaItem); rootNode-> appendRow(europeItem); americaItem-> appendRow(mexicoItem); @@ -84,11 +37,11 @@ MainWindow::MainWindow(QWidget *parent) italyItem-> appendRow(romeItem); italyItem-> appendRow(veronaItem); - //register the model + // register the model treeView->setModel(standardModel); treeView->expandAll(); - //selection changes shall trigger a slot + // selection changes shall trigger a slot QItemSelectionModel *selectionModel = treeView->selectionModel(); connect(selectionModel, &QItemSelectionModel::selectionChanged, this, &MainWindow::selectionChangedSlot); @@ -100,13 +53,13 @@ MainWindow::MainWindow(QWidget *parent) //! [quoting modelview_b] void MainWindow::selectionChangedSlot(const QItemSelection & /*newSelection*/, const QItemSelection & /*oldSelection*/) { - //get the text of the selected item + // get the text of the selected item const QModelIndex index = treeView->selectionModel()->currentIndex(); QString selectedText = index.data(Qt::DisplayRole).toString(); - //find out the hierarchy level of the selected item + // find out the hierarchy level of the selected item int hierarchyLevel = 1; QModelIndex seekRoot = index; - while (seekRoot.parent() != QModelIndex()) { + while (seekRoot.parent().isValid()) { seekRoot = seekRoot.parent(); hierarchyLevel++; } |