8c685b765b
Cleanup some minor issues in the chart example: - remove unused members - use initializer list for members - pass a proper role to dataChanged() - honor roles parameter in PieView::dataChanged() - use nullptr instead 0 - use new-style connect - fix indentation and other whitespaces Change-Id: Idb212b07c006fe3ae31bee9cd9b1ba4d03043b5e Reviewed-by: André Hartmann <aha_1980@gmx.de> Reviewed-by: Paul Wicking <paul.wicking@qt.io>
88 lines
3.6 KiB
C++
88 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** BSD License Usage
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//! [Quoting ModelView Tutorial]
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// modelview.cpp
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#include "mainwindow.h"
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#include <QTreeView>
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#include <QStandardItemModel>
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#include <QStandardItem>
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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, treeView(new QTreeView(this))
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, standardModel(new QStandardItemModel(this))
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{
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setCentralWidget(treeView);
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QList<QStandardItem *> preparedRow = prepareRow("first", "second", "third");
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QStandardItem *item = standardModel->invisibleRootItem();
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// adding a row to the invisible root item produces a root element
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item->appendRow(preparedRow);
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QList<QStandardItem *> secondRow = prepareRow("111", "222", "333");
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// adding a row to an item starts a subtree
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preparedRow.first()->appendRow(secondRow);
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treeView->setModel(standardModel);
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treeView->expandAll();
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}
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QList<QStandardItem *> MainWindow::prepareRow(const QString &first,
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const QString &second,
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const QString &third) const
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{
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return {new QStandardItem(first),
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new QStandardItem(second),
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new QStandardItem(third)};
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}
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//! [Quoting ModelView Tutorial]
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