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Diffstat (limited to 'examples/tools/customcompleter/mainwindow.cpp')
| -rw-r--r-- | examples/tools/customcompleter/mainwindow.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/examples/tools/customcompleter/mainwindow.cpp b/examples/tools/customcompleter/mainwindow.cpp new file mode 100644 index 0000000..8d75ddd --- /dev/null +++ b/examples/tools/customcompleter/mainwindow.cpp @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "mainwindow.h" +#include "textedit.h" + +//! [0] +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent), completer(0) +{ + 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, SIGNAL(triggered()), qApp, SLOT(quit())); + connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(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 + QApplication::setOverrideCursor(QCursor(Qt::WaitCursor)); +#endif + QStringList words; + + while (!file.atEnd()) { + QByteArray line = file.readLine(); + if (!line.isEmpty()) + words << line.trimmed(); + } + +#ifndef QT_NO_CURSOR + QApplication::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] + |