e510b6e466
Fixed the include statements added QT+=widgets in examples/network to get them to compile. Will need something better than doing it manually.
119 lines
4.0 KiB
C++
119 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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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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** You may use this file under the terms of the BSD license 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 Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "echowindow.h"
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//! [0]
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EchoWindow::EchoWindow()
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{
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createGUI();
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setLayout(layout);
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setWindowTitle("Echo Plugin Example");
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if (!loadPlugin()) {
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QMessageBox::information(this, "Error", "Could not load the plugin");
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lineEdit->setEnabled(false);
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button->setEnabled(false);
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}
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}
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//! [0]
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//! [1]
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void EchoWindow::sendEcho()
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{
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QString text = echoInterface->echo(lineEdit->text());
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label->setText(text);
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}
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//! [1]
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//! [2]
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void EchoWindow::createGUI()
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{
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lineEdit = new QLineEdit;
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label = new QLabel;
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label->setFrameStyle(QFrame::Box | QFrame::Plain);
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button = new QPushButton(tr("Send Message"));
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connect(lineEdit, SIGNAL(editingFinished()),
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this, SLOT(sendEcho()));
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connect(button, SIGNAL(clicked()),
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this, SLOT(sendEcho()));
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layout = new QGridLayout;
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layout->addWidget(new QLabel(tr("Message:")), 0, 0);
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layout->addWidget(lineEdit, 0, 1);
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layout->addWidget(new QLabel(tr("Answer:")), 1, 0);
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layout->addWidget(label, 1, 1);
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layout->addWidget(button, 2, 1, Qt::AlignRight);
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layout->setSizeConstraint(QLayout::SetFixedSize);
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}
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//! [2]
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//! [3]
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bool EchoWindow::loadPlugin()
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{
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QDir pluginsDir(qApp->applicationDirPath());
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#if defined(Q_OS_WIN)
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if (pluginsDir.dirName().toLower() == "debug" || pluginsDir.dirName().toLower() == "release")
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pluginsDir.cdUp();
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#elif defined(Q_OS_MAC)
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if (pluginsDir.dirName() == "MacOS") {
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pluginsDir.cdUp();
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pluginsDir.cdUp();
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pluginsDir.cdUp();
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}
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#endif
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pluginsDir.cd("plugins");
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foreach (QString fileName, pluginsDir.entryList(QDir::Files)) {
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QPluginLoader pluginLoader(pluginsDir.absoluteFilePath(fileName));
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QObject *plugin = pluginLoader.instance();
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if (plugin) {
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echoInterface = qobject_cast<EchoInterface *>(plugin);
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if (echoInterface)
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return true;
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}
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}
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return false;
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}
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//! [3]
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