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livetrax/gtk2_ardour/level_meter.cc

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/*
Copyright (C) 2002 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 <limits.h>
#include "ardour/meter.h"
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/fastmeter.h>
#include <gtkmm2ext/barcontroller.h>
#include "midi++/manager.h"
#include "pbd/fastlog.h"
#include "ardour_ui.h"
#include "global_signals.h"
#include "level_meter.h"
#include "utils.h"
#include "logmeter.h"
#include "gui_thread.h"
#include "keyboard.h"
#include "public_editor.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace std;
LevelMeter::LevelMeter (Session* s)
: _meter (0)
, meter_length (0)
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, thin_meter_width(2)
{
set_session (s);
set_spacing (1);
Config->ParameterChanged.connect (_parameter_connection, invalidator (*this), boost::bind (&LevelMeter::parameter_changed, this, _1), gui_context());
UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &LevelMeter::on_theme_changed));
ColorsChanged.connect (sigc::mem_fun (*this, &LevelMeter::color_handler));
max_peak = minus_infinity();
meter_type = MeterPeak;
}
void
LevelMeter::on_theme_changed()
{
style_changed = true;
}
LevelMeter::~LevelMeter ()
{
for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
delete (*i).meter;
}
}
void
LevelMeter::set_meter (PeakMeter* meter)
{
_configuration_connection.disconnect();
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_meter_type_connection.disconnect();
_meter = meter;
if (_meter) {
_meter->ConfigurationChanged.connect (_configuration_connection, invalidator (*this), boost::bind (&LevelMeter::configuration_changed, this, _1, _2), gui_context());
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_meter->TypeChanged.connect (_meter_type_connection, invalidator (*this), boost::bind (&LevelMeter::meter_type_changed, this, _1), gui_context());
}
}
float
LevelMeter::update_meters ()
{
vector<MeterInfo>::iterator i;
uint32_t n;
if (!_meter) {
return 0.0f;
}
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uint32_t nmidi = _meter->input_streams().n_midi();
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for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
if ((*i).packed) {
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const float mpeak = _meter->meter_level(n, MeterMaxPeak);
if (mpeak > (*i).max_peak) {
(*i).max_peak = mpeak;
(*i).meter->set_highlight(mpeak > Config->get_meter_peak());
}
if (mpeak > max_peak) {
max_peak = mpeak;
}
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if (n < nmidi) {
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(*i).meter->set (_meter->meter_level (n, MeterPeak));
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} else {
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const float peak = _meter->meter_level (n, meter_type);
if (meter_type == MeterPeak) {
(*i).meter->set (log_meter (peak));
} else {
(*i).meter->set (log_meter (peak), log_meter(_meter->meter_level(n, MeterPeak)));
}
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}
}
}
return max_peak;
}
void
LevelMeter::parameter_changed (string p)
{
ENSURE_GUI_THREAD (*this, &LevelMeter::parameter_changed, p)
if (p == "meter-hold") {
vector<MeterInfo>::iterator i;
uint32_t n;
for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
(*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
}
}
else if (p == "meter-line-up-level") {
color_changed = true;
setup_meters (meter_length, regular_meter_width, thin_meter_width);
}
else if (p == "meter-peak") {
vector<MeterInfo>::iterator i;
uint32_t n;
for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
(*i).max_peak = minus_infinity();
}
}
}
void
LevelMeter::configuration_changed (ChanCount /*in*/, ChanCount /*out*/)
{
color_changed = true;
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setup_meters (meter_length, regular_meter_width, thin_meter_width);
}
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void
LevelMeter::meter_type_changed (MeterType t)
{
meter_type = t;
MeterTypeChanged(t);
}
void
LevelMeter::hide_all_meters ()
{
for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
if ((*i).packed) {
remove (*((*i).meter));
(*i).packed = false;
}
}
}
void
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LevelMeter::setup_meters (int len, int initial_width, int thin_width)
{
hide_all_meters ();
if (!_meter) {
return; /* do it later or never */
}
int32_t nmidi = _meter->input_streams().n_midi();
uint32_t nmeters = _meter->input_streams().n_total();
regular_meter_width = initial_width;
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thin_meter_width = thin_width;
meter_length = len;
guint16 width;
if (nmeters == 0) {
return;
}
if (nmeters <= 2) {
width = regular_meter_width;
} else {
width = thin_meter_width;
}
while (meters.size() < nmeters) {
meters.push_back (MeterInfo());
}
//cerr << "LevelMeter::setup_meters() called color_changed = " << color_changed << " colors: " << endl;//DEBUG
for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
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uint32_t c[10];
float stp[4];
if (n < nmidi) {
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c[0] = ARDOUR_UI::config()->canvasvar_MidiMeterColor0.get();
c[1] = ARDOUR_UI::config()->canvasvar_MidiMeterColor1.get();
c[2] = ARDOUR_UI::config()->canvasvar_MidiMeterColor2.get();
c[3] = ARDOUR_UI::config()->canvasvar_MidiMeterColor3.get();
c[4] = ARDOUR_UI::config()->canvasvar_MidiMeterColor4.get();
c[5] = ARDOUR_UI::config()->canvasvar_MidiMeterColor5.get();
c[6] = ARDOUR_UI::config()->canvasvar_MidiMeterColor6.get();
c[7] = ARDOUR_UI::config()->canvasvar_MidiMeterColor7.get();
c[8] = ARDOUR_UI::config()->canvasvar_MidiMeterColor8.get();
c[9] = ARDOUR_UI::config()->canvasvar_MidiMeterColor9.get();
stp[0] = 115.0 * 32.0 / 128.0;
stp[1] = 115.0 * 64.0 / 128.0;
stp[2] = 115.0 * 100.0 / 128.0;
stp[3] = 115.0 * 112.0 / 128.0;
} else {
switch (Config->get_meter_line_up_level()) {
case MeteringLineUp24:
stp[0] = 42.0;
stp[1] = 77.5;
stp[2] = 92.5;
stp[3] = 100.0;
break;
case MeteringLineUp20:
stp[0] = 50.0;
stp[1] = 77.5;
stp[2] = 92.5;
stp[3] = 100.0;
break;
default:
case MeteringLineUp18:
stp[0] = 55.0;
stp[1] = 77.5;
stp[2] = 92.5;
stp[3] = 100.0;
break;
case MeteringLineUp15:
stp[0] = 62.5;
stp[1] = 77.5;
stp[2] = 92.5;
stp[3] = 100.0;
break;
}
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c[0] = ARDOUR_UI::config()->canvasvar_MeterColor0.get();
c[1] = ARDOUR_UI::config()->canvasvar_MeterColor1.get();
c[2] = ARDOUR_UI::config()->canvasvar_MeterColor2.get();
c[3] = ARDOUR_UI::config()->canvasvar_MeterColor3.get();
c[4] = ARDOUR_UI::config()->canvasvar_MeterColor4.get();
c[5] = ARDOUR_UI::config()->canvasvar_MeterColor5.get();
c[6] = ARDOUR_UI::config()->canvasvar_MeterColor6.get();
c[7] = ARDOUR_UI::config()->canvasvar_MeterColor7.get();
c[8] = ARDOUR_UI::config()->canvasvar_MeterColor8.get();
c[9] = ARDOUR_UI::config()->canvasvar_MeterColor9.get();
}
if (meters[n].width != width || meters[n].length != len || color_changed) {
delete meters[n].meter;
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meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len,
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c[0], c[1], c[2], c[3], c[4],
c[5], c[6], c[7], c[8], c[9],
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ARDOUR_UI::config()->canvasvar_MeterBackgroundBot.get(),
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ARDOUR_UI::config()->canvasvar_MeterBackgroundTop.get(),
0x991122ff, 0x551111ff,
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stp[0], stp[1], stp[2], stp[3]
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);
meters[n].width = width;
meters[n].length = len;
meters[n].meter->add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
meters[n].meter->signal_button_press_event().connect (sigc::mem_fun (*this, &LevelMeter::meter_button_press));
meters[n].meter->signal_button_release_event().connect (sigc::mem_fun (*this, &LevelMeter::meter_button_release));
}
pack_end (*meters[n].meter, false, false);
meters[n].meter->show_all ();
meters[n].packed = true;
}
show();
color_changed = false;
}
void
LevelMeter::set_type(MeterType t)
{
meter_type = t;
_meter->set_type(t);
}
bool
LevelMeter::meter_button_press (GdkEventButton* ev)
{
return ButtonPress (ev); /* EMIT SIGNAL */
}
bool
LevelMeter::meter_button_release (GdkEventButton* ev)
{
if (ev->button == 1) {
clear_meters (false);
}
return true;
}
void LevelMeter::clear_meters (bool reset_highlight)
{
for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
(*i).meter->clear();
(*i).max_peak = minus_infinity();
if (reset_highlight)
(*i).meter->set_highlight(false);
}
max_peak = minus_infinity();
}
void LevelMeter::hide_meters ()
{
hide_all_meters();
}
void
LevelMeter::color_handler ()
{
color_changed = true;
}