[deb_shairplay.git] / AirTV-Qt / qtsingleapplication / examples / loader / main.cpp

/****************************************************************************
**
** 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();
}
Commit	Line	Data
2340bcd3 JVH	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	}