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livetrax/gtk2_ardour/audio_region_editor.cc
David Robillard 6fa6514cfd Remove over 500 unnecessary includes (including 54 of session.h).
It's slightly possible that this causes trivial build failures on different
configurations, but otherwise shouldn't cause any problems (i.e. no actual
changes other than include/naming/namespace stuff).  I deliberately avoided
removing libardour-config.h since this can mysteriously break things, though a
few of those do seem to be unnecessary.

This commit only targets includes of ardour/*.h.  There is also a very large
number of unnecessary includes of stuff in gtk2_ardour; tackling that should
also give a big improvement in build time when things are modified.


git-svn-id: svn://localhost/ardour2/branches/3.0@12420 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-05-24 06:09:29 +00:00

159 lines
4.7 KiB
C++

/*
Copyright (C) 2001 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cmath>
#include <gtkmm2ext/utils.h>
#include "pbd/memento_command.h"
#include "pbd/stateful_diff_command.h"
#include "pbd/pthread_utils.h"
#include "ardour/audioregion.h"
#include "ardour/session_event.h"
#include "ardour/dB.h"
#include "audio_region_editor.h"
#include "audio_region_view.h"
#include "ardour_ui.h"
#include "utils.h"
#include "gui_thread.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
using namespace Gtkmm2ext;
static void *
_peak_amplitude_thread (void* arg)
{
SessionEvent::create_per_thread_pool ("peak amplitude events", 64);
static_cast<AudioRegionEditor*>(arg)->peak_amplitude_thread ();
return 0;
}
AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion> r)
: RegionEditor (s, r)
, _audio_region (r)
, gain_adjustment(accurate_coefficient_to_dB(_audio_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
, _peak_channel (false)
{
Gtk::HBox* b = Gtk::manage (new Gtk::HBox);
b->set_spacing (6);
b->pack_start (gain_entry);
b->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))), false, false);
gain_label.set_name ("AudioRegionEditorLabel");
gain_label.set_text (_("Region gain:"));
gain_label.set_alignment (1, 0.5);
gain_entry.configure (gain_adjustment, 0.0, 1);
_table.attach (gain_label, 0, 1, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (*b, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
b = Gtk::manage (new Gtk::HBox);
b->set_spacing (6);
b->pack_start (_peak_amplitude);
b->pack_start (*Gtk::manage (new Gtk::Label (_("dBFS"))), false, false);
_peak_amplitude_label.set_name ("AudioRegionEditorLabel");
_peak_amplitude_label.set_text (_("Peak amplitude:"));
_peak_amplitude_label.set_alignment (1, 0.5);
_table.attach (_peak_amplitude_label, 0, 1, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (*b, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
gain_changed ();
gain_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
_peak_amplitude.property_editable() = false;
_peak_amplitude.set_text (_("Calculating..."));
PeakAmplitudeFound.connect (_peak_amplitude_connection, invalidator (*this), boost::bind (&AudioRegionEditor::peak_amplitude_found, this, _1), gui_context ());
pthread_create_and_store (X_("peak-amplitude"), &_peak_amplitude_thread_handle, _peak_amplitude_thread, this);
_peak_channel.deliver ('c');
}
AudioRegionEditor::~AudioRegionEditor ()
{
void* v;
pthread_cancel_one (_peak_amplitude_thread_handle);
pthread_join (_peak_amplitude_thread_handle, &v);
}
void
AudioRegionEditor::region_changed (const PBD::PropertyChange& what_changed)
{
RegionEditor::region_changed (what_changed);
if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
gain_changed ();
}
if (what_changed.contains (ARDOUR::Properties::start) || what_changed.contains (ARDOUR::Properties::length)) {
/* ask the peak thread to run again */
_peak_channel.deliver ('c');
}
}
void
AudioRegionEditor::gain_changed ()
{
float const region_gain_dB = accurate_coefficient_to_dB (_audio_region->scale_amplitude());
if (region_gain_dB != gain_adjustment.get_value()) {
gain_adjustment.set_value(region_gain_dB);
}
}
void
AudioRegionEditor::gain_adjustment_changed ()
{
float const gain = dB_to_coefficient (gain_adjustment.get_value());
if (_audio_region->scale_amplitude() != gain) {
_audio_region->set_scale_amplitude (gain);
}
}
void
AudioRegionEditor::peak_amplitude_thread ()
{
while (1) {
/* await instructions to run */
char msg;
_peak_channel.receive (msg);
/* compute peak amplitude and signal the fact */
PeakAmplitudeFound (accurate_coefficient_to_dB (_audio_region->maximum_amplitude ())); /* EMIT SIGNAL */
}
}
void
AudioRegionEditor::peak_amplitude_found (double p)
{
stringstream s;
s.precision (2);
s.setf (ios::fixed, ios::floatfield);
s << p;
_peak_amplitude.set_text (s.str ());
}