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livetrax/gtk2_ardour/livetrax_meters.cc

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#include "ardour/logmeter.h"
#include "ardour/audioengine.h"
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#include <gtkmm/alignment.h>
#include <gtkmm/viewport.h>
#include "widgets/fastmeter.h"
#include "gui_thread.h"
#include "livetrax_meters.h"
#include "ui_config.h"
using namespace ARDOUR;
using namespace ArdourWidgets;
#define PX_SCALE(px) std::max ((float)px, rintf ((float)px* UIConfiguration::instance ().get_ui_scale ()))
LiveTraxMeters::LiveTraxMeters ()
{
set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_NEVER);
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Gtk::Alignment* container = manage (new Gtk::Alignment (.5, .5, 0, 0));
_meter_box.set_border_width (PX_SCALE (10));
_meter_box.set_spacing (PX_SCALE (10));
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container->add (_meter_box);
container->show ();
add (*container);
Gtk::Viewport *vp = dynamic_cast<Gtk::Viewport*> (get_child());
vp->set_shadow_type(Gtk::SHADOW_NONE);
AudioEngine::instance ()->Running.connect (_engine_connections, invalidator (*this), boost::bind (&LiveTraxMeters::start_updating, this), gui_context ());
AudioEngine::instance ()->Stopped.connect (_engine_connections, invalidator (*this), boost::bind (&LiveTraxMeters::stop_updating, this), gui_context ());
AudioEngine::instance ()->Halted.connect (_engine_connections, invalidator (*this), boost::bind (&LiveTraxMeters::stop_updating, this), gui_context ());
if (ARDOUR::AudioEngine::instance ()->running ()) {
start_updating ();
}
}
LiveTraxMeters::~LiveTraxMeters ()
{
}
void
LiveTraxMeters::start_updating ()
{
resize (AudioEngine::instance ()->audio_input_ports ().size ());
_fast_screen_update_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &LiveTraxMeters::update_meters), 40, GDK_PRIORITY_REDRAW + 10);
}
void
LiveTraxMeters::stop_updating ()
{
_fast_screen_update_connection.disconnect ();
resize (0);
}
void
LiveTraxMeters::resize (size_t sz)
{
size_t old = _meters.size();
while (old > sz) {
/* Widgets are all managed so this should delete them as they
are removed.
*/
_meter_box.remove (*_widgets[old - 1]);
_meters.pop_back ();
_widgets.pop_back ();
old--;
}
if (old == sz) {
return;
}
uint32_t c[10];
uint32_t b[4];
float stp[4];
c[0] = UIConfiguration::instance().color ("meter color0");
c[1] = UIConfiguration::instance().color ("meter color1");
c[2] = UIConfiguration::instance().color ("meter color2");
c[3] = UIConfiguration::instance().color ("meter color3");
c[4] = UIConfiguration::instance().color ("meter color4");
c[5] = UIConfiguration::instance().color ("meter color5");
c[6] = UIConfiguration::instance().color ("meter color6");
c[7] = UIConfiguration::instance().color ("meter color7");
c[8] = UIConfiguration::instance().color ("meter color8");
c[9] = UIConfiguration::instance().color ("meter color9");
b[0] = UIConfiguration::instance().color ("meter background bottom");
b[1] = UIConfiguration::instance().color ("meter background top");
b[2] = 0x991122ff; // red highlight gradient Bot
b[3] = 0x551111ff; // red highlight gradient Top
stp[0] = 115.0 * log_meter0dB (-15);
stp[1] = 115.0 * log_meter0dB (-9);
stp[2] = 115.0 * log_meter0dB (-3);
stp[3] = 115.0;
// XXX config changed -> update meter style (and size)
for (size_t i = old; i < sz; ++i) {
_meters.push_back (manage (new FastMeter (10 /* (uint32_t)floor (UIConfiguration::instance ().get_meter_hold ()) */,
8, FastMeter::Vertical, PX_SCALE (64),
c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7], c[8], c[9],
b[0], b[1], b[2], b[3],
stp[0], stp[1], stp[2], stp[3],
(UIConfiguration::instance ().get_meter_style_led () ? 3 : 1))));
Gtk::VBox* vb = manage (new Gtk::VBox);
char buf[16];
snprintf (buf, sizeof (buf), "%zu", i+1);
Gtk::Label* l = manage (new Gtk::Label (buf));
vb->pack_start (*_meters.back(), true, true);
vb->pack_start (*l, false, false, PX_SCALE(3));
_widgets.push_back (vb);
_meter_box.pack_start (*vb, false, false, 0);
}
_meter_box.show_all ();
if (get_parent ()) {
queue_resize ();
}
}
bool
LiveTraxMeters::update_meters ()
{
PortManager::AudioInputPorts const aip (AudioEngine::instance ()->audio_input_ports ());
size_t n = 0;
for (auto const & p : aip) {
if (n >= _meters.size()) {
break;
}
_meters[n]->set (p.second.meter->level, p.second.meter->peak);
++n;
}
return true;
}