13
0
livetrax/gtk2_ardour/automation_controller.cc
Robin Gareus 88a22d40b5 Fix implicit selection when operating track-header ctrl buttons
Stop event propagation. Otherwise, on release the event is passed
up and handled by the TAV which scrolls the editor viewpoint
and the button is no longer under the mouse.
2017-03-01 11:55:32 +01:00

347 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 "ardour_knob.h"
#include "automation_controller.h"
#include "gui_thread.h"
#include "note_select_dialog.h"
#include "timers.h"
#include "pbd/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,
bool use_knob)
: _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_fallthrough_to_parent(true);
but->set_controllable(ac);
but->signal_button_press_event().connect(
sigc::mem_fun(*this, &AutomationController::button_press));
but->signal_button_release_event().connect(
sigc::mem_fun(*this, &AutomationController::button_release));
const bool active = _adjustment->get_value() >= 0.5;
if (but->get_active() != active) {
but->set_active(active);
}
_widget = but;
} else if (use_knob) {
ArdourKnob* knob = manage (new ArdourKnob (ArdourKnob::default_elements, ArdourKnob::Detent));
knob->set_controllable (ac);
knob->set_name("processor control knob");
_widget = knob;
} 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::display_effective_value, 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,
bool use_knob)
{
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, use_knob));
}
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());
}
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);
} else {
_controllable->stop_touch (false, _controllable->session().transport_frame());
}
}
bool
AutomationController::button_press (GdkEventButton*)
{
ArdourButton* but = dynamic_cast<ArdourButton*>(_widget);
if (but) {
start_touch ();
_controllable->set_value (but->get_active () ? 0.0 : 1.0, Controllable::UseGroup);
}
return false;
}
bool
AutomationController::button_release (GdkEventButton*)
{
end_touch ();
return true;
}
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_frame (pos);
const double bpm = tempo.note_types_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;
}
/** 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));
}
}