2 Copyright (C) 2007 Paul Davis
3 Author: David Robillard
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "pbd/error.h"
26 #include "ardour/automatable.h"
27 #include "ardour/automation_control.h"
28 #include "ardour/session.h"
30 #include "ardour_ui.h"
31 #include "automation_controller.h"
32 #include "gui_thread.h"
36 using namespace ARDOUR;
39 AutomationController::AutomationController(boost::shared_ptr<Automatable> printer,
40 boost::shared_ptr<AutomationControl> ac,
42 : BarController (*adj, ac)
43 , _ignore_change(false)
50 set_name (X_("ProcessorControlSlider"));
52 StartGesture.connect (sigc::mem_fun(*this, &AutomationController::start_touch));
53 StopGesture.connect (sigc::mem_fun(*this, &AutomationController::end_touch));
55 _adjustment->signal_value_changed().connect (
56 sigc::mem_fun(*this, &AutomationController::value_adjusted));
58 _screen_update_connection = ARDOUR_UI::RapidScreenUpdate.connect (
59 sigc::mem_fun (*this, &AutomationController::display_effective_value));
61 ac->Changed.connect (_changed_connection, invalidator (*this), boost::bind (&AutomationController::value_changed, this), gui_context());
64 AutomationController::~AutomationController()
68 boost::shared_ptr<AutomationController>
69 AutomationController::create(boost::shared_ptr<Automatable> printer,
70 const Evoral::Parameter& param,
71 const ParameterDescriptor& desc,
72 boost::shared_ptr<AutomationControl> ac)
74 const double lo = ac->internal_to_interface(desc.lower);
75 const double up = ac->internal_to_interface(desc.upper);
76 const double normal = ac->internal_to_interface(desc.normal);
77 double smallstep = desc.smallstep;
78 double largestep = desc.largestep;
79 if (smallstep == 0.0) {
80 smallstep = (up - lo) / 100;
82 if (largestep == 0.0) {
83 largestep = (up - lo) / 10;
85 smallstep = ac->internal_to_interface(smallstep);
86 largestep = ac->internal_to_interface(largestep);
88 Gtk::Adjustment* adjustment = manage (
89 new Gtk::Adjustment (normal, lo, up, smallstep, largestep));
92 assert(ac->parameter() == param);
93 return boost::shared_ptr<AutomationController>(new AutomationController(printer, ac, adjustment));
97 AutomationController::get_label (double& xpos)
100 return _printer->value_as_string (_controllable);
104 AutomationController::display_effective_value()
106 double const interface_value = _controllable->internal_to_interface(_controllable->get_value());
108 if (_adjustment->get_value () != interface_value) {
109 _ignore_change = true;
110 _adjustment->set_value (interface_value);
111 _ignore_change = false;
116 AutomationController::value_adjusted ()
118 if (!_ignore_change) {
119 _controllable->set_value (_controllable->interface_to_internal(_adjustment->get_value()));
124 AutomationController::start_touch()
126 _controllable->start_touch (_controllable->session().transport_frame());
130 AutomationController::end_touch ()
132 if (!_controllable->alist()) return;
133 if (_controllable->automation_state() == Touch) {
138 if (_controllable->session().transport_rolling()) {
140 when = _controllable->session().transport_frame();
143 _controllable->stop_touch (mark, when);
148 AutomationController::value_changed ()
150 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationController::display_effective_value, this));
153 /** Stop updating our value from our controllable */
155 AutomationController::stop_updating ()
157 _screen_update_connection.disconnect ();