Keeps screen lit and pauses when app is backgrounded

[ghostsoverboard] / screenlitkeeper.h

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+/**************************************************************************
+        ScreenLitKeeper
+
+        Copyright (C) 2010  Heli Hyvättinen
+        
+        This file is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+**************************************************************************/
+
+
+
+
+
+#ifndef SCREENLITKEEPER_H
+#define SCREENLITKEEPER_H
+
+#include <QObject>
+#include <QSystemScreenSaver>
+using namespace QtMobility;
+
+
+/*! Allows keeping the sreen lit by disabling the screensaver
+
+Works at least on N900.
+The sreen can be set to be kept lit or not.
+To use this class, you must have the following lines  in your .pro file:
+CONFIG += mobility
+MOBILITY += systeminfo
+
+@author Heli Hyvättinen
+@date 2010-09-07
+@version 1
+
+  */
+
+class ScreenLitKeeper : public QObject
+{
+    Q_OBJECT
+public:
+    explicit ScreenLitKeeper(QObject *parent = 0);
+
+signals:
+
+public slots:
+ /*!
+Sets whether the screen is to be kept lit
+@param keepLit true for keeping lit, false for allowing blanking
+*/
+
+    void keepScreenLit(bool keepLit);
+
+private:
+     QSystemScreenSaver * p_screensaver_;
+     bool isKeptLit_;
+
+};
+
+#endif // SCREENLITKEEPER_H