genode/repos/gems/src/test/tiled_wm/util.h

117 lines
2.3 KiB
C++

/*
* \brief Tiled-WM test: utilities
* \author Christian Helmuth
* \date 2018-09-26
*/
/*
* Copyright (C) 2018 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _TEST__TILED_WM__UTIL_H_
#define _TEST__TILED_WM__UTIL_H_
/* Genode includes */
#include <base/signal.h>
#include <base/thread.h>
#include <base/log.h>
#include <util/string.h>
/* Qt includes */
#include <QApplication>
#include <QObject>
#include <QFile>
#include <QDebug>
#include <QFrame>
/* Qoost includes */
#include <qoost/qmember.h>
/* Libc includes */
#include <libc/component.h>
typedef Genode::String<32> Name;
/*
* Genode signal to queued Qt signal proxy
*/
class Genode_signal_proxy : public QObject,
public Genode::Signal_handler<Genode_signal_proxy>
{
Q_OBJECT
public:
Genode_signal_proxy(Genode::Entrypoint &sig_ep)
:
Genode::Signal_handler<Genode_signal_proxy>(
sig_ep, *this, &Genode_signal_proxy::handle_genode_signal)
{
connect(this, SIGNAL(internal_signal()),
this, SIGNAL(signal()),
Qt::QueuedConnection);
}
/* called by signal handler / emits internal signal in context of
* signal-entrypoint thread */
void handle_genode_signal() { Q_EMIT internal_signal(); }
Q_SIGNALS:
/* internal_signal() is Qt::QueuedConnection to signal() */
void internal_signal();
/* finally signal() is emitted in the context of the Qt main thread */
void signal();
};
/*
* Qt initialization
*/
extern void initialize_qt_gui(Genode::Env &);
static inline QApplication & qt5_initialization(Libc::Env &env)
{
initialize_qt_gui(env);
char const *argv[] = { "qt5_app", 0 };
int argc = sizeof(argv)/sizeof(*argv);
static QApplication app(argc, (char**)argv);
QFile file(":style.qss");
if (!file.open(QFile::ReadOnly)) {
qWarning() << "Warning:" << file.errorString()
<< "opening file" << file.fileName();
} else {
qApp->setStyleSheet(QLatin1String(file.readAll()));
}
app.connect(&app, SIGNAL(lastWindowClosed()), SLOT(quit()));
return app;
}
/*
* Widget utilities
*/
struct Spacer : QFrame
{
Q_OBJECT public:
Spacer(QString const &style_id = "") { setObjectName(style_id); }
~Spacer() { }
};
#endif /* _TEST__TILED_WM__UTIL_H_ */