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livetrax/gtk2_ardour/automation_controller.cc
Paul Davis 9e3299f97d change Controllable::set_value() API to include grouped control consideration.
This also removes Route::group_gain_control() and associated machinery.
Not yet tested with Mackie or other surfaces. More work to done to
start using the group capabilities, and also potentially to add
or derive more controls as RouteAutomationControls
2016-01-02 04:58:30 -05:00

348 lines
10 KiB
C++

/*
Copyright (C) 2007 Paul Davis
Author: David Robillard
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iomanip>
#include <cmath>
#include "pbd/compose.h"
#include "pbd/error.h"
#include "ardour/automatable.h"
#include "ardour/automation_control.h"
#include "ardour/session.h"
#include "ardour/tempo.h"
#include "ardour_button.h"
#include "automation_controller.h"
#include "gui_thread.h"
#include "note_select_dialog.h"
#include "timers.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace Gtk;
using PBD::Controllable;
AutomationBarController::AutomationBarController (
boost::shared_ptr<Automatable> printer,
boost::shared_ptr<AutomationControl> ac,
Adjustment* adj)
: Gtkmm2ext::BarController(*adj, ac)
, _printer(printer)
, _controllable(ac)
{
}
std::string
AutomationBarController::get_label (double& xpos)
{
xpos = 0.5;
return _printer->value_as_string (_controllable);
}
AutomationBarController::~AutomationBarController()
{
}
AutomationController::AutomationController(boost::shared_ptr<Automatable> printer,
boost::shared_ptr<AutomationControl> ac,
Adjustment* adj)
: _widget(NULL)
, _printer (printer)
, _controllable(ac)
, _adjustment(adj)
, _ignore_change(false)
{
assert (_printer);
if (ac->toggled()) {
ArdourButton* but = manage(new ArdourButton());
// Apply styles for special types
if (ac->parameter().type() == MuteAutomation) {
but->set_name("mute button");
} else if (ac->parameter().type() == SoloAutomation) {
but->set_name("solo button");
} else {
but->set_name("generic button");
}
but->set_controllable(ac);
but->signal_clicked.connect(
sigc::mem_fun(*this, &AutomationController::toggled));
_widget = but;
} else {
AutomationBarController* bar = manage(new AutomationBarController(_printer, ac, adj));
bar->set_name(X_("ProcessorControlSlider"));
bar->StartGesture.connect(
sigc::mem_fun(*this, &AutomationController::start_touch));
bar->StopGesture.connect(
sigc::mem_fun(*this, &AutomationController::end_touch));
bar->signal_button_release_event().connect(
sigc::mem_fun(*this, &AutomationController::on_button_release));
_widget = bar;
}
_adjustment->signal_value_changed().connect(
sigc::mem_fun(*this, &AutomationController::value_adjusted));
_screen_update_connection = Timers::rapid_connect (
sigc::mem_fun (*this, &AutomationController::display_effective_value));
ac->Changed.connect (_changed_connection, invalidator (*this), boost::bind (&AutomationController::value_changed, this), gui_context());
add(*_widget);
show_all();
}
AutomationController::~AutomationController()
{
}
boost::shared_ptr<AutomationController>
AutomationController::create(boost::shared_ptr<Automatable> printer,
const Evoral::Parameter& param,
const ParameterDescriptor& desc,
boost::shared_ptr<AutomationControl> ac)
{
const double lo = ac->internal_to_interface(desc.lower);
const double up = ac->internal_to_interface(desc.upper);
const double normal = ac->internal_to_interface(desc.normal);
const double smallstep = ac->internal_to_interface(desc.lower + desc.smallstep);
const double largestep = ac->internal_to_interface(desc.lower + desc.largestep);
Gtk::Adjustment* adjustment = manage (
new Gtk::Adjustment (normal, lo, up, smallstep, largestep));
assert (ac);
assert(ac->parameter() == param);
return boost::shared_ptr<AutomationController>(new AutomationController(printer, ac, adjustment));
}
void
AutomationController::display_effective_value()
{
double const interface_value = _controllable->internal_to_interface(_controllable->get_value());
if (_adjustment->get_value () != interface_value) {
_ignore_change = true;
_adjustment->set_value (interface_value);
_ignore_change = false;
}
}
void
AutomationController::value_adjusted ()
{
if (!_ignore_change) {
_controllable->set_value (_controllable->interface_to_internal(_adjustment->get_value()), Controllable::NoGroup);
}
/* A bar controller will automatically follow the adjustment, but for a
button we have to do it manually. */
ArdourButton* but = dynamic_cast<ArdourButton*>(_widget);
if (but) {
const bool active = _adjustment->get_value() >= 0.5;
if (but->get_active() != active) {
but->set_active(active);
}
}
}
void
AutomationController::start_touch()
{
_controllable->start_touch (_controllable->session().transport_frame());
StartGesture.emit(); /* EMIT SIGNAL */
}
void
AutomationController::end_touch ()
{
if (_controllable->automation_state() == Touch) {
bool mark = false;
double when = 0;
if (_controllable->session().transport_rolling()) {
mark = true;
when = _controllable->session().transport_frame();
}
_controllable->stop_touch (mark, when);
}
StopGesture.emit(); /* EMIT SIGNAL */
}
void
AutomationController::toggled ()
{
ArdourButton* but = dynamic_cast<ArdourButton*>(_widget);
const AutoState as = _controllable->automation_state ();
const double where = _controllable->session ().audible_frame ();
const bool to_list = _controllable->list () && _controllable->session().transport_rolling () && (as == Touch || as == Write);
if (but) {
if (to_list) {
if (as == Touch && _controllable->list ()->in_new_write_pass ()) {
_controllable->alist ()->start_write_pass (where);
}
_controllable->list ()->set_in_write_pass (true, false, where);
}
/* set to opposite value.*/
_controllable->set_double (but->get_active () ? 0.0 : 1.0, where, to_list);
const bool active = _controllable->get_double (to_list, where) >= 0.5;
if (active && !but->get_active ()) {
_adjustment->set_value (1.0);
but->set_active (true);
} else if (!active && but->get_active ()) {
_adjustment->set_value (0.0);
but->set_active (false);
}
}
}
static double
midi_note_to_hz(int note)
{
const double tuning = 440.0;
return tuning * pow(2, (note - 69.0) / 12.0);
}
static double
clamp(double val, double min, double max)
{
if (val < min) {
return min;
} else if (val > max) {
return max;
}
return val;
}
void
AutomationController::run_note_select_dialog()
{
const ARDOUR::ParameterDescriptor& desc = _controllable->desc();
NoteSelectDialog* dialog = new NoteSelectDialog();
if (dialog->run() == Gtk::RESPONSE_ACCEPT) {
const double value = ((_controllable->desc().unit == ARDOUR::ParameterDescriptor::HZ)
? midi_note_to_hz(dialog->note_number())
: dialog->note_number());
_controllable->set_value(clamp(value, desc.lower, desc.upper), Controllable::NoGroup);
}
delete dialog;
}
void
AutomationController::set_freq_beats(double beats)
{
const ARDOUR::ParameterDescriptor& desc = _controllable->desc();
const ARDOUR::Session& session = _controllable->session();
const framepos_t pos = session.transport_frame();
const ARDOUR::Tempo& tempo = session.tempo_map().tempo_at(pos);
const double bpm = tempo.beats_per_minute();
const double bps = bpm / 60.0;
const double freq = bps / beats;
_controllable->set_value(clamp(freq, desc.lower, desc.upper), Controllable::NoGroup);
}
void
AutomationController::set_ratio(double ratio)
{
const ARDOUR::ParameterDescriptor& desc = _controllable->desc();
const double value = _controllable->get_value() * ratio;
_controllable->set_value(clamp(value, desc.lower, desc.upper), Controllable::NoGroup);
}
bool
AutomationController::on_button_release(GdkEventButton* ev)
{
using namespace Gtk::Menu_Helpers;
if (ev->button != 3) {
return false;
}
const ARDOUR::ParameterDescriptor& desc = _controllable->desc();
if (desc.unit == ARDOUR::ParameterDescriptor::MIDI_NOTE) {
Gtk::Menu* menu = manage(new Menu());
MenuList& items = menu->items();
items.push_back(MenuElem(_("Select Note..."),
sigc::mem_fun(*this, &AutomationController::run_note_select_dialog)));
menu->popup(1, ev->time);
return true;
} else if (desc.unit == ARDOUR::ParameterDescriptor::HZ) {
Gtk::Menu* menu = manage(new Menu());
MenuList& items = menu->items();
items.push_back(MenuElem(_("Halve"),
sigc::bind(sigc::mem_fun(*this, &AutomationController::set_ratio),
0.5)));
items.push_back(MenuElem(_("Double"),
sigc::bind(sigc::mem_fun(*this, &AutomationController::set_ratio),
2.0)));
const bool is_audible = desc.upper > 40.0;
const bool is_low = desc.lower < 1.0;
if (is_audible) {
items.push_back(MenuElem(_("Select Note..."),
sigc::mem_fun(*this, &AutomationController::run_note_select_dialog)));
}
if (is_low) {
for (int beats = 1; beats <= 16; ++beats) {
items.push_back(MenuElem (string_compose(P_("Set to %1 beat", "Set to %1 beats", beats), beats),
sigc::bind(sigc::mem_fun(*this, &AutomationController::set_freq_beats),
(double)beats)));
}
}
menu->popup(1, ev->time);
return true;
}
return false;
}
void
AutomationController::value_changed ()
{
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationController::display_effective_value, this));
}
/** Stop updating our value from our controllable */
void
AutomationController::stop_updating ()
{
_screen_update_connection.disconnect ();
}
void
AutomationController::disable_vertical_scroll ()
{
AutomationBarController* bar = dynamic_cast<AutomationBarController*>(_widget);
if (bar) {
bar->set_tweaks (
Gtkmm2ext::PixFader::Tweaks(bar->tweaks() |
Gtkmm2ext::PixFader::NoVerticalScroll));
}
}