kalarm/startdaytimer.h

   1 /*
   2  *  startdaytimer.h  -  timer triggered at the user-defined start-of-day time
   3  *  Program:  kalarm
   4  *  Copyright © 2004,2005,2009 by David Jarvie <djarvie@kde.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  */
  20
  21 #ifndef STARTDAYTIMER_H
  22 #define STARTDAYTIMER_H
  23
  24 /* @file startdaytimer.h - timer triggered at the user-defined start-of-day time */
  25
  26 #include "synchtimer.h"
  27
  28
  29 /** StartOfDayTimer is an application-wide timer synchronized to the user-defined
  30  *  start-of-day time (set in KAlarm's Preferences dialog).
  31  *  It automatically adjusts to any changes in the start-of-day time.
  32  *
  33  *  @author David Jarvie <djarvie@kde.org>
  34  */
  35 class StartOfDayTimer : public DailyTimer
  36 {
  37         Q_OBJECT
  38     public:
  39         virtual ~StartOfDayTimer()  { }
  40         /** Connect to the timer signal.
  41          *  @param receiver Receiving object.
  42          *  @param member Slot to activate.
  43          */
  44         static void connect(QObject* receiver, const char* member)
  45                            { instance()->connecT(receiver, member); }
  46         /** Disconnect from the timer signal.
  47          *  @param receiver Receiving object.
  48          *  @param member Slot to disconnect. If null, all slots belonging to
  49          *                @p receiver will be disconnected.
  50          */
  51         static void disconnect(QObject* receiver, const char* member = Q_NULLPTR)
  52                            { if (mInstance) mInstance->disconnecT(receiver, member); }
  53
  54     protected:
  55         StartOfDayTimer();
  56         static StartOfDayTimer* instance();
  57
  58     private Q_SLOTS:
  59         void startOfDayChanged();
  60
  61     private:
  62         static StartOfDayTimer* mInstance;    // exists solely to receive signals
  63 };
  64
  65 #endif // STARTDAYTIMER_H
  66
  67 // vim: et sw=4: