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livetrax/gtk2_ardour/meter_strip.cc

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/*
Copyright (C) 2013 Paul Davis
Author: Robin Gareus
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 <list>
#include <sigc++/bind.h>
#include "ardour/session.h"
#include "ardour/route.h"
#include "ardour/route_group.h"
#include "ardour/meter.h"
#include "ardour/audio_track.h"
#include "ardour/midi_track.h"
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include "ardour_ui.h"
#include "global_signals.h"
#include "logmeter.h"
#include "gui_thread.h"
#include "ardour_window.h"
#include "meterbridge.h"
#include "meter_strip.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace std;
PBD::Signal1<void,MeterStrip*> MeterStrip::CatchDeletion;
MeterStrip::MetricPatterns MeterStrip::metric_patterns;
MeterStrip::TickPatterns MeterStrip::ticks_patterns;
MeterStrip::MeterStrip (int metricmode)
: AxisView(0)
, RouteUI(0)
{
level_meter = 0;
set_spacing(2);
peakbx.set_size_request(-1, 16);
btnbox.set_size_request(-1, 16);
_types.clear ();
switch(metricmode) {
case 1:
meter_metric_area.set_name ("AudioBusMetrics");
_types.push_back (DataType::AUDIO);
break;
case 2:
meter_metric_area.set_name ("AudioTrackMetrics");
_types.push_back (DataType::AUDIO);
break;
case 3:
meter_metric_area.set_name ("MidiTrackMetrics");
_types.push_back (DataType::MIDI);
break;
default:
meter_metric_area.set_name ("AudioMidiTrackMetrics");
_types.push_back (DataType::AUDIO);
_types.push_back (DataType::MIDI);
break;
}
//meter_metric_area.queue_draw ();
set_size_request_to_display_given_text (meter_metric_area, "8888", 1, 0);
meter_metric_area.signal_expose_event().connect (
sigc::mem_fun(*this, &MeterStrip::meter_metrics_expose));
meterbox.pack_start(meter_metric_area, true, false);
label.set_text("");
label.set_name("MeterbridgeLabel");
label.set_angle(90.0);
label.set_alignment(0.5, 1.0);
label.set_size_request(12, 52);
pack_start (peakbx, false, false);
pack_start (meterbox, true, true);
pack_start (btnbox, false, false);
pack_start (label, false, false, 2);
peakbx.show();
btnbox.show();
label.show();
meter_metric_area.show();
meterbox.show();
UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &MeterStrip::on_theme_changed));
ColorsChanged.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
DPIReset.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
}
MeterStrip::MeterStrip (Session* sess, boost::shared_ptr<ARDOUR::Route> rt)
: AxisView(sess)
, RouteUI(sess)
, _route(rt)
{
set_spacing(2);
RouteUI::set_route (rt);
int meter_width = 6;
if (_route->shared_peak_meter()->input_streams().n_total() == 1) {
meter_width = 12;
}
// level meter + ticks
level_meter = new LevelMeter(sess);
level_meter->set_meter (_route->shared_peak_meter().get());
level_meter->clear_meters();
level_meter->setup_meters (400, meter_width, 6);
Gtk::Alignment *meter_align = Gtk::manage (new Gtk::Alignment());
meter_align->set(0.5, 0.5, 0.0, 1.0);
meter_align->add(*level_meter);
meterbox.pack_start(meter_ticks1_area, true, false);
meterbox.pack_start(*meter_align, true, true);
meterbox.pack_start(meter_ticks2_area, true, false);
// peak display
peak_display.set_name ("MixerStripPeakDisplay");
max_peak = minus_infinity();
peak_display.unset_flags (Gtk::CAN_FOCUS);
peak_display.set_size_request(-1, 8);
Gtk::Alignment *peak_align = Gtk::manage (new Gtk::Alignment());
peak_align->set(0.5, 1.0, 0.75, 0.8); // TODO rather add padding 4px left+right (ticks)
peak_align->add(peak_display);
peakbx.pack_start(*peak_align, true, true);
peakbx.set_size_request(-1, 14);
// add track-name label -- TODO ellipsize
label.set_text(_route->name().c_str());
label.set_name("MeterbridgeLabel");
label.set_angle(90.0);
label.set_alignment(0.5, 1.0);
label.set_size_request(12, 52);
// rec-enable button
btnbox.pack_start(*rec_enable_button, true, false);
btnbox.set_size_request(-1, 16);
pack_start (peakbx, false, false);
pack_start (meterbox, true, true);
pack_start (btnbox, false, false);
pack_start (label, false, false, 2);
peak_display.show();
peakbx.show();
meter_ticks1_area.show();
meter_ticks2_area.show();
meterbox.show();
level_meter->show();
meter_align->show();
peak_align->show();
btnbox.show();
label.show();
_route->shared_peak_meter()->ConfigurationChanged.connect (
route_connections, invalidator (*this), boost::bind (&MeterStrip::meter_configuration_changed, this, _1), gui_context()
);
meter_configuration_changed (_route->shared_peak_meter()->input_streams ());
meter_ticks1_area.set_size_request(4,-1);
meter_ticks2_area.set_size_request(4,-1);
meter_ticks1_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks1_expose));
meter_ticks2_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks2_expose));
_route->DropReferences.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::self_delete, this), gui_context());
_route->PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::strip_property_changed, this, _1), gui_context());
peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &MeterStrip::peak_button_release), false);
UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &MeterStrip::on_theme_changed));
ColorsChanged.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
DPIReset.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
}
MeterStrip::~MeterStrip ()
{
delete level_meter;
CatchDeletion (this);
}
void
MeterStrip::self_delete ()
{
delete this;
}
void
MeterStrip::update_rec_display ()
{
RouteUI::update_rec_display ();
}
std::string
MeterStrip::state_id() const
{
return string_compose ("mtrs %1", _route->id().to_s());
}
void
MeterStrip::set_button_names()
{
rec_enable_button->set_text (_("R"));
}
void
MeterStrip::strip_property_changed (const PropertyChange& what_changed)
{
if (!what_changed.contains (ARDOUR::Properties::name)) {
return;
}
ENSURE_GUI_THREAD (*this, &MeterStrip::strip_name_changed, what_changed)
label.set_text(_route->name());
}
void
MeterStrip::fast_update ()
{
float mpeak = level_meter->update_meters();
if (mpeak > max_peak) {
max_peak = mpeak;
if (mpeak >= 0.0f) {
peak_display.set_name ("MixerStripPeakDisplayPeak");
}
}
}
void
MeterStrip::display_metrics (bool show)
{
#if 0
if (show) {
meter_metric_area.show();
} else {
meter_metric_area.hide();
}
#endif
}
void
MeterStrip::on_theme_changed()
{
metric_patterns.clear();
ticks_patterns.clear();
if (level_meter && _route) {
int meter_width = 6;
if (_route->shared_peak_meter()->input_streams().n_total() == 1) {
meter_width = 12;
}
level_meter->setup_meters (400, meter_width, 6);
}
}
void
MeterStrip::meter_configuration_changed (ChanCount c)
{
int type = 0;
_types.clear ();
for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
if (c.get (*i) > 0) {
_types.push_back (*i);
type |= 1 << (*i);
}
}
// TODO draw Inactive routes or busses with different styles
if (boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
&& boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
) {
meter_ticks1_area.set_name ("AudioBusMetrics");
meter_ticks2_area.set_name ("AudioBusMetrics");
}
else if (type == (1 << DataType::AUDIO)) {
meter_ticks1_area.set_name ("AudioTrackMetrics");
meter_ticks2_area.set_name ("AudioTrackMetrics");
}
else if (type == (1 << DataType::MIDI)) {
meter_ticks1_area.set_name ("MidiTrackMetrics");
meter_ticks2_area.set_name ("MidiTrackMetrics");
} else {
meter_ticks1_area.set_name ("AudioMidiTrackMetrics");
meter_ticks2_area.set_name ("AudioMidiTrackMetrics");
}
meter_ticks1_area.queue_draw();
meter_ticks2_area.queue_draw();
metric_patterns.clear();
ticks_patterns.clear();
}
void
MeterStrip::on_size_request (Gtk::Requisition* r)
{
metric_patterns.clear();
ticks_patterns.clear();
VBox::on_size_request(r);
}
void
MeterStrip::on_size_allocate (Gtk::Allocation& a)
{
metric_patterns.clear();
ticks_patterns.clear();
VBox::on_size_allocate(a);
}
/* XXX code-copy from gain_meter.cc -- TODO consolidate
*
* slightly different:
* - ticks & label positions are swapped
* - more ticks for audio (longer meter by default)
* - right-aligned lables, unit-legend
* - height limitation of FastMeter::max_pattern_metric_size is included here
*/
cairo_pattern_t*
MeterStrip::render_metrics (Gtk::Widget& w, vector<DataType> types)
{
Glib::RefPtr<Gdk::Window> win (w.get_window());
gint width, height;
win->get_size (width, height);
cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
cairo_t* cr = cairo_create (surface);
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
Pango::AttrList audio_font_attributes;
Pango::AttrList midi_font_attributes;
Pango::AttrList unit_font_attributes;
Pango::AttrFontDesc* font_attr;
Pango::FontDescription font;
font = Pango::FontDescription (""); // use defaults
//font = get_font_for_style("gain-fader");
//font = w.get_style()->get_font();
font.set_weight (Pango::WEIGHT_NORMAL);
font.set_size (9.0 * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
audio_font_attributes.change (*font_attr);
delete font_attr;
font.set_weight (Pango::WEIGHT_ULTRALIGHT);
font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
font.set_size (7.5 * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
midi_font_attributes.change (*font_attr);
delete font_attr;
font.set_size (7.0 * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
unit_font_attributes.change (*font_attr);
delete font_attr;
cairo_move_to (cr, 0, 0);
cairo_rectangle (cr, 0, 0, width, height);
{
Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
cairo_fill (cr);
height = min(1024, height); // XXX see FastMeter::max_pattern_metric_size
for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
Gdk::Color c;
if (types.size() > 1) {
/* we're overlaying more than 1 set of marks, so use different colours */
Gdk::Color c;
switch (*i) {
case DataType::AUDIO:
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
break;
case DataType::MIDI:
c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
break;
}
} else {
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
vector<int> points;
switch (*i) {
case DataType::AUDIO:
layout->set_attributes (audio_font_attributes);
points.push_back (-50);
points.push_back (-40);
points.push_back (-30);
points.push_back (-25);
points.push_back (-20);
points.push_back (-18);
points.push_back (-15);
points.push_back (-10);
points.push_back (-5);
points.push_back (-3);
points.push_back (0);
points.push_back (3);
break;
case DataType::MIDI:
layout->set_attributes (midi_font_attributes);
points.push_back (0);
if (types.size() == 1) {
points.push_back (32);
} else {
/* tweak so as not to overlay the -30dB mark */
points.push_back (48);
}
if (types.size() == 1) {
points.push_back (64); // very close to -18dB
points.push_back (96); // overlays with -6dB mark
} else {
points.push_back (72);
points.push_back (88);
}
points.push_back (127);
break;
}
char buf[32];
for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
float fraction = 0;
switch (*i) {
case DataType::AUDIO:
fraction = log_meter (*j);
snprintf (buf, sizeof (buf), "%+2d", *j);
break;
case DataType::MIDI:
fraction = *j / 127.0;
snprintf (buf, sizeof (buf), "%3d", *j);
break;
}
gint const pos = height - (gint) floor (height * fraction);
layout->set_text(buf);
/* we want logical extents, not ink extents here */
int tw, th;
layout->get_pixel_size(tw, th);
int p = pos - (th / 2);
p = min (p, height - th);
p = max (p, 0);
cairo_move_to (cr, width-1-tw, p + .5);
pango_cairo_show_layout (cr, layout->gobj());
}
}
if (types.size() == 1) {
int tw, th;
layout->set_attributes (unit_font_attributes);
switch (types.at(0)) {
case DataType::AUDIO:
layout->set_text("dBFS");
layout->get_pixel_size(tw, th);
break;
case DataType::MIDI:
layout->set_text("vel");
layout->get_pixel_size(tw, th);
break;
}
Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
cairo_move_to (cr, 1, height - th);
pango_cairo_show_layout (cr, layout->gobj());
}
cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
MetricPatterns::iterator p;
if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
cairo_pattern_destroy (p->second);
}
metric_patterns[w.get_name()] = pattern;
cairo_destroy (cr);
cairo_surface_destroy (surface);
return pattern;
}
/* XXX code-copy from gain_meter.cc -- TODO consolidate */
gint
MeterStrip::meter_metrics_expose (GdkEventExpose *ev)
{
Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
cairo_t* cr;
cr = gdk_cairo_create (win->gobj());
/* clip to expose area */
gdk_cairo_rectangle (cr, &ev->area);
cairo_clip (cr);
cairo_pattern_t* pattern;
MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
if (i == metric_patterns.end()) {
pattern = render_metrics (meter_metric_area, _types);
} else {
pattern = i->second;
}
cairo_move_to (cr, 0, 0);
cairo_set_source (cr, pattern);
gint width, height;
win->get_size (width, height);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_destroy (cr);
return true;
}
cairo_pattern_t*
MeterStrip::render_ticks (Gtk::Widget& w, vector<DataType> types)
{
Glib::RefPtr<Gdk::Window> win (w.get_window());
gint width, height;
win->get_size (width, height);
cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
cairo_t* cr = cairo_create (surface);
cairo_move_to (cr, 0, 0);
cairo_rectangle (cr, 0, 0, width, height);
{
Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
cairo_fill (cr);
height = min(1024, height); // XXX see FastMeter::max_pattern_metric_size
for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
Gdk::Color c;
if (types.size() > 1) {
/* we're overlaying more than 1 set of marks, so use different colours */
Gdk::Color c;
switch (*i) {
case DataType::AUDIO:
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
break;
case DataType::MIDI:
c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
break;
}
} else {
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
std::map<int,float> points;
switch (*i) {
case DataType::AUDIO:
points.insert (std::pair<int,float>(-60, 0.5));
points.insert (std::pair<int,float>(-50, 0.5));
points.insert (std::pair<int,float>(-40, 0.5));
points.insert (std::pair<int,float>(-30, 0.5));
points.insert (std::pair<int,float>(-25, 0.5));
points.insert (std::pair<int,float>(-20, 1.0));
points.insert (std::pair<int,float>(-19, 0.5));
points.insert (std::pair<int,float>(-18, 1.0));
points.insert (std::pair<int,float>(-17, 0.5));
points.insert (std::pair<int,float>(-16, 0.5));
points.insert (std::pair<int,float>(-15, 1.0));
points.insert (std::pair<int,float>(-14, 0.5));
points.insert (std::pair<int,float>(-13, 0.5));
points.insert (std::pair<int,float>(-12, 0.5));
points.insert (std::pair<int,float>(-11, 0.5));
points.insert (std::pair<int,float>(-10, 1.0));
points.insert (std::pair<int,float>( -9, 0.5));
points.insert (std::pair<int,float>( -8, 0.5));
points.insert (std::pair<int,float>( -7, 0.5));
points.insert (std::pair<int,float>( -6, 0.5));
points.insert (std::pair<int,float>( -5, 1.0));
points.insert (std::pair<int,float>( -4, 0.5));
points.insert (std::pair<int,float>( -3, 0.5));
points.insert (std::pair<int,float>( -2, 0.5));
points.insert (std::pair<int,float>( -1, 0.5));
points.insert (std::pair<int,float>( 0, 1.0));
points.insert (std::pair<int,float>( 1, 0.5));
points.insert (std::pair<int,float>( 2, 0.5));
points.insert (std::pair<int,float>( 3, 0.5));
points.insert (std::pair<int,float>( 4, 0.5));
points.insert (std::pair<int,float>( 5, 0.5));
points.insert (std::pair<int,float>( 6, 0.5));
break;
case DataType::MIDI:
points.insert (std::pair<int,float>( 0, 1.0));
points.insert (std::pair<int,float>( 16, 0.5));
points.insert (std::pair<int,float>( 32, 0.5));
points.insert (std::pair<int,float>( 48, 0.5));
points.insert (std::pair<int,float>( 64, 1.0));
points.insert (std::pair<int,float>( 72, 0.5));
points.insert (std::pair<int,float>( 96, 0.5));
points.insert (std::pair<int,float>(100, 1.0));
points.insert (std::pair<int,float>(112, 0.5));
points.insert (std::pair<int,float>(127, 1.0));
break;
}
for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
cairo_set_line_width (cr, (j->second));
float fraction = 0;
gint pos;
switch (*i) {
case DataType::AUDIO:
if (j->first >= 0) {
cairo_set_source_rgb (cr, 1.0, 0.0, 0.0);
}
fraction = log_meter (j->first);
pos = height - (gint) floor (height * fraction);
cairo_move_to(cr, 0, pos + .5);
cairo_line_to(cr, 4, pos + .5);
cairo_stroke (cr);
break;
case DataType::MIDI:
fraction = (j->first) / 127.0;
pos = height - (gint) floor (height * fraction);
cairo_arc(cr, 2, pos, (j->second), 0, 2 * M_PI);
cairo_fill_preserve(cr);
cairo_stroke (cr);
break;
}
}
}
cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
TickPatterns::iterator p;
if ((p = ticks_patterns.find (w.get_name())) != metric_patterns.end()) {
cairo_pattern_destroy (p->second);
}
ticks_patterns[w.get_name()] = pattern;
cairo_destroy (cr);
cairo_surface_destroy (surface);
return pattern;
}
gint
MeterStrip::meter_ticks1_expose (GdkEventExpose *ev)
{
return meter_ticks_expose(ev, &meter_ticks1_area);
}
gint
MeterStrip::meter_ticks2_expose (GdkEventExpose *ev)
{
return meter_ticks_expose(ev, &meter_ticks2_area);
}
gint
MeterStrip::meter_ticks_expose (GdkEventExpose *ev, Gtk::DrawingArea *mta)
{
Glib::RefPtr<Gdk::Window> win (mta->get_window());
cairo_t* cr;
cr = gdk_cairo_create (win->gobj());
/* clip to expose area */
gdk_cairo_rectangle (cr, &ev->area);
cairo_clip (cr);
cairo_pattern_t* pattern;
TickPatterns::iterator i = ticks_patterns.find (mta->get_name());
if (i == ticks_patterns.end()) {
pattern = render_ticks (*mta, _types);
} else {
pattern = i->second;
}
cairo_move_to (cr, 0, 0);
cairo_set_source (cr, pattern);
gint width, height;
win->get_size (width, height);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_destroy (cr);
return true;
}
void
MeterStrip::reset_group_peak_display (RouteGroup* group)
{
/* UNUSED -- need connection w/mixer || other meters */
if (_route && group == _route->route_group()) {
reset_peak_display ();
}
}
void
MeterStrip::reset_peak_display ()
{
_route->shared_peak_meter()->reset_max();
level_meter->clear_meters();
max_peak = -INFINITY;
peak_display.set_name ("MixerStripPeakDisplay");
}
bool
MeterStrip::peak_button_release (GdkEventButton* ev)
{
reset_peak_display ();
return true;
}
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