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Viewing changes to plugins/unityshell/src/Decaymulator.cpp

  • Committer: Daniel van Vugt
  • Date: 2012-03-14 06:24:18 UTC
  • mfrom: (2108 unity)
  • mto: This revision was merged to the branch mainline in revision 2146.
  • Revision ID: daniel.van.vugt@canonical.com-20120314062418-nprucpbr0m7qky5e
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plugins/unityshell/src/Decaymulator.cpp
 
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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
 
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/*
 
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 * Copyright (C) 2010 Canonical Ltd
 
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 *
 
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 * This program is free software: you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License version 3 as
 
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 * published by the Free Software Foundation.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 *
 
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 * Authored by: Jason Smith <jason.smith@canonical.com>
 
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 */
 
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#include "Decaymulator.h"
 
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namespace unity {
 
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namespace ui {
 
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Decaymulator::Decaymulator()
 
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{
 
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  on_decay_handle = 0;
 
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  value.changed.connect(sigc::mem_fun(this, &Decaymulator::OnValueChanged));
 
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}
 
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void Decaymulator::OnValueChanged(int value)
 
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{
 
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  if (!on_decay_handle && value > 0)
 
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  {
 
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    on_decay_handle = g_timeout_add(10, &Decaymulator::OnDecayTimeout, this);
 
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  }
 
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}
 
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gboolean Decaymulator::OnDecayTimeout(gpointer data)
 
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{
 
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  Decaymulator* self = (Decaymulator*) data;
 
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  int partial_decay = self->rate_of_decay / 100;
 
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  if (self->value <= partial_decay)
 
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  {
 
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    self->value = 0;
 
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    self->on_decay_handle = 0;
 
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    return FALSE;
 
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  }
 
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  self->value = self->value - partial_decay;
 
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  return TRUE;
 
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}
 
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}
 
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}
 
 
b'\\ No newline at end of file'