| 1 | /**************************************************************************** |
| 2 | ** |
| 3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
| 4 | ** All rights reserved. |
| 5 | ** |
| 6 | ** Contact: Nokia Corporation (qt-info@nokia.com) |
| 7 | ** |
| 8 | ** This file is part of a Qt Solutions component. |
| 9 | ** |
| 10 | ** You may use this file under the terms of the BSD license as follows: |
| 11 | ** |
| 12 | ** "Redistribution and use in source and binary forms, with or without |
| 13 | ** modification, are permitted provided that the following conditions are |
| 14 | ** met: |
| 15 | ** * Redistributions of source code must retain the above copyright |
| 16 | ** notice, this list of conditions and the following disclaimer. |
| 17 | ** * Redistributions in binary form must reproduce the above copyright |
| 18 | ** notice, this list of conditions and the following disclaimer in |
| 19 | ** the documentation and/or other materials provided with the |
| 20 | ** distribution. |
| 21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor |
| 22 | ** the names of its contributors may be used to endorse or promote |
| 23 | ** products derived from this software without specific prior written |
| 24 | ** permission. |
| 25 | ** |
| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
| 37 | ** |
| 38 | ****************************************************************************/ |
| 39 | |
| 40 | #include <qtsingleapplication.h> |
| 41 | #include <QtCore/QFile> |
| 42 | #include <QtGui/QMainWindow> |
| 43 | #include <QtGui/QPrinter> |
| 44 | #include <QtGui/QPainter> |
| 45 | #include <QtGui/QTextEdit> |
| 46 | #include <QtGui/QMdiArea> |
| 47 | #include <QtCore/QTextStream> |
| 48 | |
| 49 | class MainWindow : public QMainWindow |
| 50 | { |
| 51 | Q_OBJECT |
| 52 | public: |
| 53 | MainWindow(); |
| 54 | |
| 55 | public slots: |
| 56 | void handleMessage(const QString& message); |
| 57 | |
| 58 | signals: |
| 59 | void needToShow(); |
| 60 | |
| 61 | private: |
| 62 | QMdiArea *workspace; |
| 63 | }; |
| 64 | |
| 65 | MainWindow::MainWindow() |
| 66 | { |
| 67 | workspace = new QMdiArea(this); |
| 68 | |
| 69 | setCentralWidget(workspace); |
| 70 | } |
| 71 | |
| 72 | void MainWindow::handleMessage(const QString& message) |
| 73 | { |
| 74 | enum Action { |
| 75 | Nothing, |
| 76 | Open, |
| 77 | Print |
| 78 | } action; |
| 79 | |
| 80 | action = Nothing; |
| 81 | QString filename = message; |
| 82 | if (message.toLower().startsWith("/print ")) { |
| 83 | filename = filename.mid(7); |
| 84 | action = Print; |
| 85 | } else if (!message.isEmpty()) { |
| 86 | action = Open; |
| 87 | } |
| 88 | if (action == Nothing) { |
| 89 | emit needToShow(); |
| 90 | return; |
| 91 | } |
| 92 | |
| 93 | QFile file(filename); |
| 94 | QString contents; |
| 95 | if (file.open(QIODevice::ReadOnly)) |
| 96 | contents = file.readAll(); |
| 97 | else |
| 98 | contents = "[[Error: Could not load file " + filename + "]]"; |
| 99 | |
| 100 | QTextEdit *view = new QTextEdit; |
| 101 | view->setPlainText(contents); |
| 102 | |
| 103 | switch(action) { |
| 104 | case Print: |
| 105 | { |
| 106 | QPrinter printer; |
| 107 | view->print(&printer); |
| 108 | delete view; |
| 109 | } |
| 110 | break; |
| 111 | |
| 112 | case Open: |
| 113 | { |
| 114 | workspace->addSubWindow(view); |
| 115 | view->setWindowTitle(message); |
| 116 | view->show(); |
| 117 | emit needToShow(); |
| 118 | } |
| 119 | break; |
| 120 | default: |
| 121 | break; |
| 122 | }; |
| 123 | } |
| 124 | |
| 125 | #include "main.moc" |
| 126 | |
| 127 | int main(int argc, char **argv) |
| 128 | { |
| 129 | QtSingleApplication instance("File loader QtSingleApplication example", argc, argv); |
| 130 | QString message; |
| 131 | for (int a = 1; a < argc; ++a) { |
| 132 | message += argv[a]; |
| 133 | if (a < argc-1) |
| 134 | message += " "; |
| 135 | } |
| 136 | |
| 137 | if (instance.sendMessage(message)) |
| 138 | return 0; |
| 139 | |
| 140 | MainWindow mw; |
| 141 | mw.handleMessage(message); |
| 142 | mw.show(); |
| 143 | |
| 144 | QObject::connect(&instance, SIGNAL(messageReceived(const QString&)), |
| 145 | &mw, SLOT(handleMessage(const QString&))); |
| 146 | |
| 147 | instance.setActivationWindow(&mw, false); |
| 148 | QObject::connect(&mw, SIGNAL(needToShow()), &instance, SLOT(activateWindow())); |
| 149 | |
| 150 | return instance.exec(); |
| 151 | } |