subsurface/core/windowtitleupdate.h

// SPDX-License-Identifier: GPL-2.0
#ifndef WINDOWTITLEUPDATE_H
#define WINDOWTITLEUPDATE_H

#include <QObject>

class WindowTitleUpdate : public QObject
{
	Q_OBJECT
signals:
	void updateTitle();
};

extern WindowTitleUpdate windowTitleUpdate;

#endif // WINDOWTITLEUPDATE_H
Add SPDX header to remaining core files Signed-off-by: Dirk Hohndel <dirk@hohndel.org> 2017-04-27 18:24:53 +00:00			`// SPDX-License-Identifier: GPL-2.0`
Code cleanup: implement window title update via signal This seems quite convoluted to me but I can't seem to make a more straight forward implementation work. The idea is that core code should never directly call into the UI. So instead the core code (this is C code) calls a helper function. That helper function calls a member function of a class which in return emits a signal. The UI code connects to that signal and acts accordingly when it is received. Signed-off-by: Dirk Hohndel <dirk@hohndel.org> 2015-06-16 13:04:34 +00:00			`#ifndef WINDOWTITLEUPDATE_H`
			`#define WINDOWTITLEUPDATE_H`

			`#include <QObject>`

			`class WindowTitleUpdate : public QObject`
			`{`
			`Q_OBJECT`
			`signals:`
			`void updateTitle();`
			`};`

Cleanup: Make WindowsTitleUpdate a global object WindowsTitleUpdate is such a trivial object (a QObject with a single signal and no own state), that it's not really understandable why it would need all that "singleton" boiler-plate. Just make it a default constructed/destructed global object. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at> 2018-07-30 18:59:07 +00:00			`extern WindowTitleUpdate windowTitleUpdate;`

Code cleanup: implement window title update via signal This seems quite convoluted to me but I can't seem to make a more straight forward implementation work. The idea is that core code should never directly call into the UI. So instead the core code (this is C code) calls a helper function. That helper function calls a member function of a class which in return emits a signal. The UI code connects to that signal and acts accordingly when it is received. Signed-off-by: Dirk Hohndel <dirk@hohndel.org> 2015-06-16 13:04:34 +00:00			`#endif // WINDOWTITLEUPDATE_H`