diff options
Diffstat (limited to 'libs/qtsingleapplication/examples/loader/main.cpp')
-rwxr-xr-x | libs/qtsingleapplication/examples/loader/main.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/libs/qtsingleapplication/examples/loader/main.cpp b/libs/qtsingleapplication/examples/loader/main.cpp new file mode 100755 index 0000000..7bc5686 --- /dev/null +++ b/libs/qtsingleapplication/examples/loader/main.cpp @@ -0,0 +1,151 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#include <qtsingleapplication.h> +#include <QtCore/QFile> +#include <QtGui/QMainWindow> +#include <QtGui/QPrinter> +#include <QtGui/QPainter> +#include <QtGui/QTextEdit> +#include <QtGui/QMdiArea> +#include <QtCore/QTextStream> + +class MainWindow : public QMainWindow +{ + Q_OBJECT +public: + MainWindow(); + +public slots: + void handleMessage(const QString& message); + +signals: + void needToShow(); + +private: + QMdiArea *workspace; +}; + +MainWindow::MainWindow() +{ + workspace = new QMdiArea(this); + + setCentralWidget(workspace); +} + +void MainWindow::handleMessage(const QString& message) +{ + enum Action { + Nothing, + Open, + Print + } action; + + action = Nothing; + QString filename = message; + if (message.toLower().startsWith("/print ")) { + filename = filename.mid(7); + action = Print; + } else if (!message.isEmpty()) { + action = Open; + } + if (action == Nothing) { + emit needToShow(); + return; + } + + QFile file(filename); + QString contents; + if (file.open(QIODevice::ReadOnly)) + contents = file.readAll(); + else + contents = "[[Error: Could not load file " + filename + "]]"; + + QTextEdit *view = new QTextEdit; + view->setPlainText(contents); + + switch(action) { + case Print: + { + QPrinter printer; + view->print(&printer); + delete view; + } + break; + + case Open: + { + workspace->addSubWindow(view); + view->setWindowTitle(message); + view->show(); + emit needToShow(); + } + break; + default: + break; + }; +} + +#include "main.moc" + +int main(int argc, char **argv) +{ + QtSingleApplication instance("File loader QtSingleApplication example", argc, argv); + QString message; + for (int a = 1; a < argc; ++a) { + message += argv[a]; + if (a < argc-1) + message += " "; + } + + if (instance.sendMessage(message)) + return 0; + + MainWindow mw; + mw.handleMessage(message); + mw.show(); + + QObject::connect(&instance, SIGNAL(messageReceived(const QString&)), + &mw, SLOT(handleMessage(const QString&))); + + instance.setActivationWindow(&mw, false); + QObject::connect(&mw, SIGNAL(needToShow()), &instance, SLOT(activateWindow())); + + return instance.exec(); +} |