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/*
Copyright (C) 2009 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 <inttypes.h>
#include <iomanip>
#include <gtkmm/stock.h>
#include "pbd/convert.h"
#include "pbd/error.h"
#include "ardour/latent.h"
#include "gtkmm2ext/utils.h"
#include "latency_gui.h"
#include "pbd/i18n.h"
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace ARDOUR;
static const gchar *_unit_strings[] = {
N_("sample"),
N_("msec"),
N_("period"),
0
};
std::vector<std::string> LatencyGUI::unit_strings;
std::string
LatencyBarController::get_label (double&)
{
double const nframes = _latency_gui->adjustment.get_value();
std::stringstream s;
if (nframes < (_latency_gui->sample_rate / 1000.0)) {
const samplepos_t nf = (samplepos_t) rint (nframes);
s << string_compose (P_("%1 sample", "%1 samples", nf), nf);
} else {
s << std::fixed << std::setprecision (2) << (nframes / (_latency_gui->sample_rate / 1000.0)) << " ms";
}
return s.str ();
}
LatencyGUI::LatencyGUI (Latent& l, samplepos_t sr, samplepos_t psz)
: _latent (l),
initial_value (_latent.user_latency()),
sample_rate (sr),
period_size (psz),
ignored (new PBD::IgnorableControllable()),
/* max 1 second, step by samples, page by msecs */
adjustment (initial_value, 0.0, sample_rate, 1.0, sample_rate / 1000.0f),
bc (adjustment, this),
reset_button (_("Reset"))
{
Widget* w;
if (unit_strings.empty()) {
unit_strings = I18N (_unit_strings);
}
set_popdown_strings (units_combo, unit_strings);
units_combo.set_active_text (unit_strings.front());
w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
w->show ();
plus_button.add (*w);
w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
w->show ();
minus_button.add (*w);
hbox1.pack_start (bc, true, true);
hbox2.set_homogeneous (false);
hbox2.set_spacing (12);
hbox2.pack_start (reset_button);
hbox2.pack_start (minus_button);
hbox2.pack_start (plus_button);
hbox2.pack_start (units_combo, true, true);
minus_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &LatencyGUI::change_latency_from_button), -1));
plus_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &LatencyGUI::change_latency_from_button), 1));
reset_button.signal_clicked().connect (sigc::mem_fun (*this, &LatencyGUI::reset));
adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &LatencyGUI::finish));
bc.set_size_request (-1, 25);
bc.set_name (X_("ProcessorControlSlider"));
set_spacing (12);
pack_start (hbox1, true, true);
pack_start (hbox2, true, true);
}
void
LatencyGUI::finish ()
{
samplepos_t new_value = (samplepos_t) adjustment.get_value();
if (new_value != initial_value) {
_latent.set_user_latency (new_value);
}
}
void
LatencyGUI::reset ()
{
_latent.set_user_latency (0);
adjustment.set_value (initial_value);
}
void
LatencyGUI::refresh ()
{
initial_value = _latent.signal_latency();
adjustment.set_value (initial_value);
}
void
LatencyGUI::change_latency_from_button (int dir)
{
std::string unitstr = units_combo.get_active_text();
double shift = 0.0;
if (unitstr == unit_strings[0]) {
shift = 1;
} else if (unitstr == unit_strings[1]) {
shift = (sample_rate / 1000.0);
} else if (unitstr == unit_strings[2]) {
shift = period_size;
} else {
fatal << string_compose (_("programming error: %1 (%2)"), X_("illegal string in latency GUI units combo"), unitstr)
<< endmsg;
abort(); /*NOTREACHED*/
}
if (dir > 0) {
adjustment.set_value (adjustment.get_value() + shift);
} else {
adjustment.set_value (adjustment.get_value() - shift);
}
}
LatencyDialog::LatencyDialog (const std::string& title, Latent& l, samplepos_t sr, samplepos_t psz)
: ArdourDialog (title, false, true),
lwidget (l, sr, psz)
{
get_vbox()->pack_start (lwidget);
add_button (Stock::CLOSE, RESPONSE_CLOSE);
show_all ();
run ();
}
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