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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include "textedit.h"
#include <QAction>
#include <QApplication>
#include <QCompleter>
#include <QFile>
#include <QMenuBar>
#include <QMessageBox>
#include <QStringListModel>
//! [0]
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
createMenu();
completingTextEdit = new TextEdit;
completer = new QCompleter(this);
completer->setModel(modelFromFile(":/resources/wordlist.txt"));
completer->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
completer->setCaseSensitivity(Qt::CaseInsensitive);
completer->setWrapAround(false);
completingTextEdit->setCompleter(completer);
setCentralWidget(completingTextEdit);
resize(500, 300);
setWindowTitle(tr("Completer"));
}
//! [0]
//! [1]
void MainWindow::createMenu()
{
QAction *exitAction = new QAction(tr("Exit"), this);
QAction *aboutAct = new QAction(tr("About"), this);
QAction *aboutQtAct = new QAction(tr("About Qt"), this);
connect(exitAction, &QAction::triggered, qApp, &QApplication::quit);
connect(aboutAct, &QAction::triggered, this, &MainWindow::about);
connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt);
QMenu *fileMenu = menuBar()->addMenu(tr("File"));
fileMenu->addAction(exitAction);
QMenu *helpMenu = menuBar()->addMenu(tr("About"));
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
}
//! [1]
//! [2]
QAbstractItemModel *MainWindow::modelFromFile(const QString& fileName)
{
QFile file(fileName);
if (!file.open(QFile::ReadOnly))
return new QStringListModel(completer);
#ifndef QT_NO_CURSOR
QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
#endif
QStringList words;
while (!file.atEnd()) {
QByteArray line = file.readLine();
if (!line.isEmpty())
words << QString::fromUtf8(line.trimmed());
}
#ifndef QT_NO_CURSOR
QGuiApplication::restoreOverrideCursor();
#endif
return new QStringListModel(words, completer);
}
//! [2]
//! [3]
void MainWindow::about()
{
QMessageBox::about(this, tr("About"), tr("This example demonstrates the "
"different features of the QCompleter class."));
}
//! [3]
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