From 7a489dd5532ae53ab943adc1f38c1bc24b4474c9 Mon Sep 17 00:00:00 2001 From: Robin Gareus Date: Wed, 12 Apr 2017 14:10:44 +0200 Subject: Add a ReadOnlyControl parameter abstraction This allows to pass a sperici Controllable alike instance around without relying on directly exposing the Plugin instance and parameter-id. --- libs/ardour/readonly_control.cc | 50 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 libs/ardour/readonly_control.cc (limited to 'libs/ardour/readonly_control.cc') diff --git a/libs/ardour/readonly_control.cc b/libs/ardour/readonly_control.cc new file mode 100644 index 0000000000..3b72ac5e1b --- /dev/null +++ b/libs/ardour/readonly_control.cc @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2017 Robin Gareus + * Copyright (C) 2000, 2007 Paul Davis + * + * This program 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "pbd/destructible.h" + +#include "ardour/plugin.h" +#include "ardour/readonly_control.h" + +using namespace ARDOUR; + +ReadOnlyControl::ReadOnlyControl (boost::shared_ptr p, uint32_t pnum) + : _plugin (boost::weak_ptr (p)) + , _parameter_num (pnum) +{ } + +double +ReadOnlyControl::get_parameter () const +{ + boost::shared_ptr p = _plugin.lock(); + if (p) { + return p->get_parameter (_parameter_num); + } + return 0; +} + +std::string +ReadOnlyControl::describe_parameter () +{ + boost::shared_ptr p = _plugin.lock(); + if (p) { + return p->describe_parameter (Evoral::Parameter (ARDOUR::PluginAutomation, 0, _parameter_num)); + } + return ""; +} -- cgit v1.2.3