8c04aab896
Cleanup the Widget examples - use the new signal/slot syntax where possible - layout, statemachine, tools and touch subdirectory Change-Id: I466b309b643ef7ffc27be7591fa10f4c75cfd3f8 Reviewed-by: Luca Beldi <v.ronin@yahoo.it> Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com> Reviewed-by: Paul Wicking <paul.wicking@qt.io>
128 lines
4.4 KiB
C++
128 lines
4.4 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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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "mainwindow.h"
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#include "textedit.h"
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//! [0]
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent), completer(0)
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{
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createMenu();
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completingTextEdit = new TextEdit;
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completer = new QCompleter(this);
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completer->setModel(modelFromFile(":/resources/wordlist.txt"));
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completer->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
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completer->setCaseSensitivity(Qt::CaseInsensitive);
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completer->setWrapAround(false);
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completingTextEdit->setCompleter(completer);
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setCentralWidget(completingTextEdit);
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resize(500, 300);
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setWindowTitle(tr("Completer"));
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}
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//! [0]
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//! [1]
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void MainWindow::createMenu()
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{
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QAction *exitAction = new QAction(tr("Exit"), this);
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QAction *aboutAct = new QAction(tr("About"), this);
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QAction *aboutQtAct = new QAction(tr("About Qt"), this);
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connect(exitAction, &QAction::triggered, qApp, &QApplication::quit);
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connect(aboutAct, &QAction::triggered, this, &MainWindow::about);
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connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt);
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QMenu* fileMenu = menuBar()->addMenu(tr("File"));
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fileMenu->addAction(exitAction);
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QMenu* helpMenu = menuBar()->addMenu(tr("About"));
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helpMenu->addAction(aboutAct);
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helpMenu->addAction(aboutQtAct);
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}
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//! [1]
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//! [2]
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QAbstractItemModel *MainWindow::modelFromFile(const QString& fileName)
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{
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QFile file(fileName);
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if (!file.open(QFile::ReadOnly))
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return new QStringListModel(completer);
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#ifndef QT_NO_CURSOR
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QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
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#endif
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QStringList words;
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while (!file.atEnd()) {
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QByteArray line = file.readLine();
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if (!line.isEmpty())
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words << line.trimmed();
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}
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#ifndef QT_NO_CURSOR
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QGuiApplication::restoreOverrideCursor();
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#endif
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return new QStringListModel(words, completer);
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}
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//! [2]
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//! [3]
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void MainWindow::about()
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{
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QMessageBox::about(this, tr("About"), tr("This example demonstrates the "
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"different features of the QCompleter class."));
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}
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//! [3]
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