gtk2_ardour/clock_group.cc

   1 /*
   2     Copyright (C) 2011 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "clock_group.h"
  21
  22 ClockGroup::ClockGroup ()
  23         : ignore_changes (false)
  24         , _clock_mode (AudioClock::Frames)
  25 {
  26 }
  27
  28 ClockGroup::~ClockGroup()
  29 {
  30 }
  31
  32 void
  33 ClockGroup::add (AudioClock& clock)
  34 {
  35         if (clocks.insert (&clock).second) {
  36                 clock.mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &ClockGroup::one_clock_changed), &clock));
  37                 clock.set_mode (_clock_mode);
  38         }
  39 }
  40
  41 void
  42 ClockGroup::remove (AudioClock& clock)
  43 {
  44         clocks.erase (&clock);
  45 }
  46
  47 void
  48 ClockGroup::one_clock_changed (AudioClock* clock)
  49 {
  50         if (!ignore_changes) {
  51                 set_clock_mode (clock->mode());
  52         }
  53 }
  54
  55 void
  56 ClockGroup::set_clock_mode (AudioClock::Mode mode)
  57 {
  58         _clock_mode = mode;
  59
  60         ignore_changes = true;
  61         for (std::set<AudioClock*>::iterator c = clocks.begin(); c != clocks.end(); ++c) {
  62                 (*c)->set_mode (mode);
  63         }
  64         ignore_changes = false;
  65 }
  66