#include <limits.h>
-#include <ardour/io.h>
-#include <ardour/route.h>
-#include <ardour/route_group.h>
-#include <ardour/session.h>
-#include <ardour/session_route.h>
-#include <ardour/dB.h>
+#include "ardour/amp.h"
+#include "ardour/io.h"
+#include "ardour/route.h"
+#include "ardour/route_group.h"
+#include "ardour/session.h"
+#include "ardour/session_route.h"
+#include "ardour/dB.h"
+#include "ardour/utils.h"
#include <gtkmm/style.h>
#include <gdkmm/color.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/fastmeter.h>
-#include <gtkmm2ext/stop_signal.h>
#include <gtkmm2ext/barcontroller.h>
#include <gtkmm2ext/gtk_ui.h>
-#include <midi++/manager.h>
-#include <pbd/fastlog.h>
+#include "midi++/manager.h"
+#include "pbd/fastlog.h"
+#include "pbd/stacktrace.h"
#include "ardour_ui.h"
#include "gain_meter.h"
-#include "utils.h"
+#include "global_signals.h"
#include "logmeter.h"
#include "gui_thread.h"
#include "keyboard.h"
#include "public_editor.h"
+#include "utils.h"
-#include <ardour/session.h>
-#include <ardour/route.h>
-#include <ardour/meter.h>
+#include "ardour/session.h"
+#include "ardour/route.h"
+#include "ardour/meter.h"
#include "i18n.h"
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;
-using namespace sigc;
using namespace std;
+using Gtkmm2ext::Keyboard;
-sigc::signal<void> GainMeter::ResetAllPeakDisplays;
-sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
+sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
+sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
+
+GainMeter::MetricPatterns GainMeter::metric_patterns;
Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
-Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
-map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
-int
+
+void
GainMeter::setup_slider_pix ()
{
- slider = ::get_icon ("fader_belt");
- return 0;
+ if ((slider = ::get_icon ("fader_belt")) == 0) {
+ throw failed_constructor();
+ }
}
-GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
- : _io (io),
- _session (s),
- gain_slider (0),
- // 0.781787 is the value needed for gain to be set to 0.
- gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
- gain_automation_style_button (""),
- gain_automation_state_button (""),
- regular_meter_width(5)
-
+GainMeterBase::GainMeterBase (Session* s,
+ const Glib::RefPtr<Gdk::Pixbuf>& pix,
+ bool horizontal,
+ int fader_length)
+ : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
+ , gain_automation_style_button ("")
+ , gain_automation_state_button ("")
+ , style_changed (false)
+ , dpi_changed (false)
+ , _data_type (DataType::AUDIO)
+
{
- if (slider == 0) {
- setup_slider_pix ();
- }
+ using namespace Menu_Helpers;
+
+ set_session (s);
ignore_toggle = false;
meter_menu = 0;
next_release_selects = false;
- style_changed = true;
+ _width = Wide;
- gain_slider = manage (new VSliderController (slider,
- &gain_adjustment,
- *_io->gain_control().get(),
- false));
+ if (horizontal) {
+ gain_slider = manage (new HSliderController (pix,
+ &gain_adjustment,
+ fader_length,
+ false));
+ } else {
+ gain_slider = manage (new VSliderController (pix,
+ &gain_adjustment,
+ fader_length,
+ false));
+ }
+
+ level_meter = new LevelMeter(_session);
- gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
- gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
+ gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press));
+ gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release));
gain_slider->set_name ("GainFader");
gain_display.set_name ("MixerStripGainDisplay");
- gain_display.set_has_frame (false);
set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
- gain_display.signal_activate().connect (mem_fun (*this, &GainMeter::gain_activated));
- gain_display.signal_focus_in_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
- gain_display.signal_focus_out_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
-
- gain_display_box.set_name ("MeterMetricsStrip");
- gain_display_box.set_homogeneous (true);
- gain_display_box.set_spacing (2);
- gain_display_box.pack_start (gain_display, true, true);
+ gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
+ gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
+ gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
peak_display.set_name ("MixerStripPeakDisplay");
-// peak_display.set_has_frame (false);
-// peak_display.set_editable (false);
- set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
+ set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
max_peak = minus_infinity();
peak_display.set_label (_("-inf"));
peak_display.unset_flags (Gtk::CAN_FOCUS);
- meter_metric_area.set_name ("MeterMetricsStrip");
- set_size_request_to_display_given_text (meter_metric_area, "-50", 0, 0);
-
- meter_packer.set_spacing (2);
-
gain_automation_style_button.set_name ("MixerAutomationModeButton");
gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
- ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
- ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
+ ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
+ ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
gain_automation_state_button.set_size_request(15, 15);
gain_automation_style_button.set_size_request(15, 15);
- HBox* fader_centering_box = manage (new HBox);
- fader_centering_box->pack_start (*gain_slider, true, false);
-
- fader_vbox = manage (new Gtk::VBox());
- fader_vbox->set_spacing (0);
- fader_vbox->pack_start (*fader_centering_box, false, false, 0);
-
- hbox.set_spacing (2);
-
- if (_io->default_type() == ARDOUR::DataType::AUDIO) {
- hbox.pack_start (*fader_vbox, true, true);
- }
-
- set_width (Narrow);
+ gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
+ gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
- Route* r;
+ gain_astate_menu.set_name ("ArdourContextMenu");
+ gain_astyle_menu.set_name ("ArdourContextMenu");
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
+ gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
+ peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
+ gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
- /*
- if we have a non-hidden route (ie. we're not the click or the auditioner),
- pack some route-dependent stuff.
- */
+ ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
+ ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
- gain_display_box.pack_end (peak_display, true, true);
- hbox.pack_end (meter_packer, true, true);
-
- using namespace Menu_Helpers;
-
- gain_astate_menu.items().push_back (MenuElem (_("Manual"),
- bind (mem_fun (*_io, &IO::set_parameter_automation_state),
- Parameter(GainAutomation), (AutoState) Off)));
- gain_astate_menu.items().push_back (MenuElem (_("Play"),
- bind (mem_fun (*_io, &IO::set_parameter_automation_state),
- Parameter(GainAutomation), (AutoState) Play)));
- gain_astate_menu.items().push_back (MenuElem (_("Write"),
- bind (mem_fun (*_io, &IO::set_parameter_automation_state),
- Parameter(GainAutomation), (AutoState) Write)));
- gain_astate_menu.items().push_back (MenuElem (_("Touch"),
- bind (mem_fun (*_io, &IO::set_parameter_automation_state),
- Parameter(GainAutomation), (AutoState) Touch)));
-
- gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
- gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
-
- gain_astate_menu.set_name ("ArdourContextMenu");
- gain_astyle_menu.set_name ("ArdourContextMenu");
-
- gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
- gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
-
- r->gain_control()->list()->automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
- r->gain_control()->list()->automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
- fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
-
- gain_automation_state_changed ();
- }
-
- set_spacing (2);
-
- pack_start (gain_display_box, Gtk::PACK_SHRINK);
- pack_start (hbox, Gtk::PACK_SHRINK);
-
- _io->gain_control()->Changed.connect (mem_fun(*this, &GainMeter::gain_changed));
-
- meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
- gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
- peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
- gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
-
- Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
-
- gain_changed ();
- show_gain ();
-
- update_gain_sensitive ();
-
- ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
- ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
-
- UI::instance()->theme_changed.connect (mem_fun(*this, &GainMeter::on_theme_changed));
-
- ColorsChanged.connect (bind (mem_fun (*this, &GainMeter::color_handler), false));
- DPIReset.connect (bind (mem_fun (*this, &GainMeter::color_handler), true));
-
- //hide_all();
+ UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
+ ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
+ DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
}
-void
-GainMeter::set_width (Width w, int len)
+GainMeterBase::~GainMeterBase ()
{
- _width = w;
- setup_meters (len);
+ delete meter_menu;
+ delete level_meter;
}
-Glib::RefPtr<Gdk::Pixmap>
-GainMeter::render_metrics (Gtk::Widget& w)
+void
+GainMeterBase::set_controls (boost::shared_ptr<Route> r,
+ boost::shared_ptr<PeakMeter> pm,
+ boost::shared_ptr<Amp> amp)
{
- //cerr << "GainMeter::render_metrics() called, red = " << w.get_style()->get_bg(Gtk::STATE_NORMAL).get_red() << endl;//DEBUG
- Glib::RefPtr<Gdk::Window> win (w.get_window());
- Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
- Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
- gint width, height;
- int db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
- char buf[32];
-
- win->get_size (width, height);
-
- Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
+ connections.clear ();
+ model_connections.drop_connections ();
+
+ if (!pm && !amp) {
+ level_meter->set_meter (0);
+ gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
+ _meter.reset ();
+ _amp.reset ();
+ _route.reset ();
+ return;
+ }
- metric_pixmaps[w.get_name()] = pixmap;
+ _meter = pm;
+ _amp = amp;
+ _route = r;
- pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
+ level_meter->set_meter (pm.get());
+ gain_slider->set_controllable (amp->gain_control());
- Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
+ if (amp) {
+ amp->ConfigurationChanged.connect (
+ model_connections, invalidator (*this), ui_bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
+ );
+ }
- for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
+ setup_gain_adjustment ();
- float fraction = log_meter (db_points[i]);
- gint pos = height - (gint) floor (height * fraction);
+ if (!_route || !_route->is_hidden()) {
- snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
+ using namespace Menu_Helpers;
- layout->set_text (buf);
+ gain_astate_menu.items().clear ();
- /* we want logical extents, not ink extents here */
+ gain_astate_menu.items().push_back (MenuElem (_("Manual"),
+ sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
+ Evoral::Parameter(GainAutomation), (AutoState) Off)));
+ gain_astate_menu.items().push_back (MenuElem (_("Play"),
+ sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
+ Evoral::Parameter(GainAutomation), (AutoState) Play)));
+ gain_astate_menu.items().push_back (MenuElem (_("Write"),
+ sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
+ Evoral::Parameter(GainAutomation), (AutoState) Write)));
+ gain_astate_menu.items().push_back (MenuElem (_("Touch"),
+ sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
+ Evoral::Parameter(GainAutomation), (AutoState) Touch)));
- int width, height;
- layout->get_pixel_size (width, height);
+ connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
+ connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
- pixmap->draw_line (fg_gc, 0, pos, 4, pos);
- pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
- }
+ boost::shared_ptr<AutomationControl> gc = amp->gain_control();
- return pixmap;
-}
+ gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
+ gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
-gint
-GainMeter::meter_metrics_expose (GdkEventExpose *ev)
-{
- /* Only draw dB scale if we're metering audio */
- if (_io->n_inputs().n_audio() + _io->n_outputs().n_audio() == 0)
- return true;
-
- static Glib::RefPtr<Gtk::Style> meter_style;
-
- if (style_changed) {
- meter_style = meter_metric_area.get_style();
+ gain_automation_state_changed ();
}
-
- Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
- Glib::RefPtr<Gdk::GC> fg_gc (meter_style->get_fg_gc (Gtk::STATE_NORMAL));
- Glib::RefPtr<Gdk::GC> bg_gc (meter_style->get_bg_gc (Gtk::STATE_NORMAL));
-
- GdkRectangle base_rect;
- GdkRectangle draw_rect;
- gint width, height;
-
- win->get_size (width, height);
-
- base_rect.width = width;
- base_rect.height = height;
- base_rect.x = 0;
- base_rect.y = 0;
-
- Glib::RefPtr<Gdk::Pixmap> pixmap;
- std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
- if (i == metric_pixmaps.end() || style_changed || dpi_changed) {
- pixmap = render_metrics (meter_metric_area);
- } else {
- pixmap = i->second;
- }
+ amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
- gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
- win->draw_rectangle (bg_gc, false, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
- win->draw_drawable (fg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
-
- style_changed = false;
- return true;
+ gain_changed ();
+ show_gain ();
+ update_gain_sensitive ();
}
void
-GainMeter::on_theme_changed()
-{
- style_changed = true;
-}
-
-GainMeter::~GainMeter ()
+GainMeterBase::setup_gain_adjustment ()
{
- if (meter_menu) {
- delete meter_menu;
+ if (!_amp) {
+ return;
}
- for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
- if ((*i).meter) {
- delete (*i).meter;
- }
+ if (_previous_amp_output_streams == _amp->output_streams ()) {
+ return;
}
-}
-void
-GainMeter::update_meters ()
-{
- vector<MeterInfo>::iterator i;
- uint32_t n;
- float peak, mpeak;
- char buf[32];
-
- for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
- if ((*i).packed) {
- peak = _io->peak_meter().peak_power (n);
+ ignore_toggle = true;
- (*i).meter->set (log_meter (peak));
+ if (_amp->output_streams().n_midi() == 0) {
+ _data_type = DataType::AUDIO;
+ gain_adjustment.set_lower (0.0);
+ gain_adjustment.set_upper (1.0);
+ gain_adjustment.set_step_increment (0.01);
+ gain_adjustment.set_page_increment (0.1);
+ gain_slider->set_default_value (gain_to_slider_position (1));
+ } else {
+ _data_type = DataType::MIDI;
+ gain_adjustment.set_lower (0.0);
+ gain_adjustment.set_upper (2.0);
+ gain_adjustment.set_step_increment (0.05);
+ gain_adjustment.set_page_increment (0.1);
+ gain_slider->set_default_value (1);
+ }
- mpeak = _io->peak_meter().max_peak_power(n);
-
- if (mpeak > max_peak) {
- max_peak = mpeak;
- /* set peak display */
- if (max_peak <= -200.0f) {
- peak_display.set_label (_("-inf"));
- } else {
- snprintf (buf, sizeof(buf), "%.1f", max_peak);
- peak_display.set_label (buf);
- }
+ ignore_toggle = false;
- if (max_peak >= 0.0f) {
- peak_display.set_name ("MixerStripPeakDisplayPeak");
- }
- }
- }
- }
+ effective_gain_display ();
+
+ _previous_amp_output_streams = _amp->output_streams ();
}
void
-GainMeter::parameter_changed(const char* parameter_name)
+GainMeterBase::hide_all_meters ()
{
-#define PARAM_IS(x) (!strcmp (parameter_name, (x)))
-
- ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
-
- if (PARAM_IS ("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()));
- }
- }
-
-#undef PARAM_IS
+ level_meter->hide_meters();
}
void
{
bool remove_metric_area = false;
- for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
- if ((*i).packed) {
- remove_metric_area = true;
- meter_packer.remove (*((*i).meter));
- (*i).packed = false;
- }
- }
+ GainMeterBase::hide_all_meters ();
if (remove_metric_area) {
if (meter_metric_area.get_parent()) {
- meter_packer.remove (meter_metric_area);
+ level_meter->remove (meter_metric_area);
}
}
}
void
-GainMeter::setup_meters (int len)
+GainMeterBase::setup_meters (int len)
{
- uint32_t nmeters = _io->n_outputs().n_total();
- guint16 width;
-
- hide_all_meters ();
-
- Route* r;
-
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
-
- switch (r->meter_point()) {
- case MeterInput:
- nmeters = r->n_inputs().n_total();
- break;
- case MeterPreFader:
- nmeters = r->pre_fader_streams().n_total();
- break;
- case MeterPostFader:
- nmeters = r->n_outputs().n_total();
- break;
- }
-
- } else {
-
- nmeters = _io->n_outputs().n_total();
-
- }
-
- if (nmeters == 0) {
- return;
- }
-
- if (nmeters <= 2) {
- width = regular_meter_width;
- } else {
- width = thin_meter_width;
- }
-
- while (meters.size() < nmeters) {
- meters.push_back (MeterInfo());
- }
-
- /* pack them backwards */
-
- meter_packer.pack_end (meter_metric_area, false, false);
- meter_metric_area.show_all ();
-
- int b = ARDOUR_UI::config()->canvasvar_MeterColorBase.get();
- int m = ARDOUR_UI::config()->canvasvar_MeterColorMid.get();
- int t = ARDOUR_UI::config()->canvasvar_MeterColorTop.get();
- int c = ARDOUR_UI::config()->canvasvar_MeterColorClip.get();
-
- //cerr << "GainMeter::setup_meters() called color_changed = " << color_changed << " colors: " << hex << b << " " << m << " " << t << " " << c << endl;//DEBUG
-
- for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
- if (meters[n].width != width || meters[n].length != len || color_changed) {
- delete meters[n].meter;
- meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len, b, m, t, c);
- //cerr << "GainMeter::setup_meters() w:l = " << width << ":" << len << endl;//DEBUG
- meters[n].width = width;
- meters[n].length = len;
- meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
- meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
- }
-
- meter_packer.pack_end (*meters[n].meter, false, false);
- meters[n].meter->show_all ();
- meters[n].packed = true;
- }
- color_changed = false;
-}
+ level_meter->setup_meters(len, 5);
+}
-int
-GainMeter::get_gm_width ()
+void
+GainMeter::setup_meters (int len)
{
- Gtk::Requisition sz = hbox.size_request ();
- return sz.width;
+ if (!meter_metric_area.get_parent()) {
+ level_meter->pack_end (meter_metric_area, false, false);
+ meter_metric_area.show_all ();
+ }
+ GainMeterBase::setup_meters (len);
}
bool
-GainMeter::gain_key_press (GdkEventKey* ev)
+GainMeterBase::gain_key_press (GdkEventKey* ev)
{
if (key_is_legal_for_numeric_entry (ev->keyval)) {
/* drop through to normal handling */
}
bool
-GainMeter::peak_button_release (GdkEventButton* ev)
+GainMeterBase::peak_button_release (GdkEventButton* ev)
{
/* reset peak label */
if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
ResetAllPeakDisplays ();
} else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
- Route* r;
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
- ResetGroupPeakDisplays (r->mix_group());
+ if (_route) {
+ ResetGroupPeakDisplays (_route->route_group());
}
} else {
reset_peak_display ();
}
void
-GainMeter::reset_peak_display ()
+GainMeterBase::reset_peak_display ()
{
- Route * r;
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
- r->peak_meter().reset_max();
- }
-
+ _meter->reset_max();
+ level_meter->clear_meters();
max_peak = -INFINITY;
peak_display.set_label (_("-Inf"));
peak_display.set_name ("MixerStripPeakDisplay");
}
void
-GainMeter::reset_group_peak_display (RouteGroup* group)
+GainMeterBase::reset_group_peak_display (RouteGroup* group)
{
- Route* r;
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
- if (group == r->mix_group()) {
- reset_peak_display ();
- }
+ if (_route && group == _route->route_group()) {
+ reset_peak_display ();
}
}
-gint
-GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
-{
- switch (ev->button) {
- case 1:
- meters[which].meter->clear();
- max_peak = minus_infinity();
- peak_display.set_label (_("-inf"));
- peak_display.set_name ("MixerStripPeakDisplay");
- break;
-
- case 3:
- // popup_meter_menu (ev);
- break;
- };
-
- return TRUE;
-}
-
void
-GainMeter::popup_meter_menu (GdkEventButton *ev)
+GainMeterBase::popup_meter_menu (GdkEventButton *ev)
{
using namespace Menu_Helpers;
}
bool
-GainMeter::gain_focused (GdkEventFocus* ev)
+GainMeterBase::gain_focused (GdkEventFocus* ev)
{
if (ev->in) {
gain_display.select_region (0, -1);
}
void
-GainMeter::gain_activated ()
+GainMeterBase::gain_activated ()
{
float f;
f = min (f, 6.0f);
- _io->gain_control()->set_value (dB_to_coefficient(f));
+ _amp->set_gain (dB_to_coefficient(f), this);
if (gain_display.has_focus()) {
PublicEditor::instance().reset_focus();
}
void
-GainMeter::show_gain ()
+GainMeterBase::show_gain ()
{
char buf[32];
float v = gain_adjustment.get_value();
-
- if (v == 0.0) {
- strcpy (buf, _("-inf"));
- } else {
- snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
+
+ switch (_data_type) {
+ case DataType::AUDIO:
+ if (v == 0.0) {
+ strcpy (buf, _("-inf"));
+ } else {
+ snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
+ }
+ break;
+ case DataType::MIDI:
+ snprintf (buf, sizeof (buf), "%.1f", v);
+ break;
}
-
+
gain_display.set_text (buf);
}
void
-GainMeter::gain_adjusted ()
+GainMeterBase::gain_adjusted ()
{
+ gain_t value = 0;
+
+ switch (_data_type) {
+ case DataType::AUDIO:
+ value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
+ break;
+ case DataType::MIDI:
+ value = gain_adjustment.get_value ();
+ break;
+ }
+
if (!ignore_toggle) {
- _io->gain_control()->set_value (slider_position_to_gain (gain_adjustment.get_value()));
+ if (_route && _route->amp() == _amp) {
+ _route->set_gain (value, this);
+ } else {
+ _amp->set_gain (value, this);
+ }
}
+
show_gain ();
}
void
-GainMeter::effective_gain_display ()
+GainMeterBase::effective_gain_display ()
{
- gfloat value = gain_to_slider_position (_io->effective_gain());
-
+ float value = 0.0;
+
+ switch (_data_type) {
+ case DataType::AUDIO:
+ value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
+ break;
+ case DataType::MIDI:
+ value = _amp->gain ();
+ break;
+ }
+
if (gain_adjustment.get_value() != value) {
- ignore_toggle = true;
+ ignore_toggle = true;
gain_adjustment.set_value (value);
ignore_toggle = false;
}
}
void
-GainMeter::gain_changed ()
+GainMeterBase::gain_changed ()
{
- Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
+ Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
}
void
-GainMeter::set_meter_strip_name (const char * name)
+GainMeterBase::set_meter_strip_name (const char * name)
{
meter_metric_area.set_name (name);
}
void
-GainMeter::set_fader_name (const char * name)
+GainMeterBase::set_fader_name (const char * name)
{
- gain_slider->set_name (name);
+ uint32_t rgb_active = rgba_from_style (name, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE, false);
+ uint32_t rgb_normal = rgba_from_style (name, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL, false);
+
+ gain_slider->set_border_colors (rgb_normal, rgb_active);
}
void
-GainMeter::update_gain_sensitive ()
+GainMeterBase::update_gain_sensitive ()
{
- static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_control()->list()->automation_state() & Play));
+ bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
+ static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
}
-
static MeterPoint
next_meter_point (MeterPoint mp)
{
case MeterInput:
return MeterPreFader;
break;
-
+
case MeterPreFader:
return MeterPostFader;
break;
-
+
case MeterPostFader:
+ return MeterOutput;
+ break;
+
+ case MeterOutput:
+ return MeterCustom;
+ break;
+
+ case MeterCustom:
return MeterInput;
break;
}
+
/*NOTREACHED*/
return MeterInput;
}
gint
-GainMeter::meter_press(GdkEventButton* ev)
+GainMeterBase::meter_press(GdkEventButton* ev)
{
- Route* _route;
-
wait_for_release = false;
- if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
+ if (!_route) {
return FALSE;
}
if (!ignore_toggle) {
if (Keyboard::is_context_menu_event (ev)) {
-
+
// no menu at this time.
} else {
- if (ev->button == 2) {
+ if (Keyboard::is_button2_event(ev)) {
// Primary-button2 click is the midi binding click
// button2-click is "momentary"
-
+
if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
wait_for_release = true;
old_meter_point = _route->meter_point ();
}
}
- if (ev->button == 1 || ev->button == 2) {
+ if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
/* Primary+Tertiary-click applies change to all routes */
- _session.begin_reversible_command (_("meter point change"));
- Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
- _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
- cmd->mark();
- _session.add_command (cmd);
- _session.commit_reversible_command ();
-
-
+ _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
+
+
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
/* Primary-click: solo mix group.
NOTE: Primary-button2 is MIDI learn.
*/
-
+
if (ev->button == 1) {
- _session.begin_reversible_command (_("meter point change"));
- Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
- set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
- cmd->mark();
- _session.add_command (cmd);
- _session.commit_reversible_command ();
+ set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
}
-
+
} else {
-
+
/* click: change just this route */
// XXX no undo yet
-
- _route->set_meter_point (next_meter_point (_route->meter_point()), this);
+
+ _route->set_meter_point (next_meter_point (_route->meter_point()));
}
}
}
}
gint
-GainMeter::meter_release(GdkEventButton* ev)
+GainMeterBase::meter_release(GdkEventButton*)
{
-
- if(!ignore_toggle){
- if (wait_for_release){
+ if (!ignore_toggle) {
+ if (wait_for_release) {
wait_for_release = false;
- set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
+
+ if (_route) {
+ set_meter_point (*_route, old_meter_point);
+ }
}
}
+
return true;
}
void
-GainMeter::set_meter_point (Route& route, MeterPoint mp)
+GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
{
- route.set_meter_point (mp, this);
+ route.set_meter_point (mp);
}
void
-GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
+GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
{
- RouteGroup* mix_group;
+ RouteGroup* route_group;
- if((mix_group = route.mix_group()) != 0){
- mix_group->apply (&Route::set_meter_point, mp, this);
+ if ((route_group = route.route_group ()) != 0) {
+ route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
} else {
- route.set_meter_point (mp, this);
+ route.set_meter_point (mp);
}
}
void
-GainMeter::meter_point_clicked ()
+GainMeterBase::meter_point_clicked ()
{
- Route* r;
-
- if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
-
+ if (_route) {
+ /* WHAT? */
}
}
-gint
-GainMeter::start_gain_touch (GdkEventButton* ev)
+bool
+GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
{
- _io->gain_control()->list()->start_touch ();
- return FALSE;
+ switch (ev->type) {
+ case GDK_BUTTON_PRESS:
+ _amp->gain_control()->start_touch (_amp->session().transport_frame());
+ break;
+ default:
+ return false;
+ }
+
+ return true;
}
-gint
-GainMeter::end_gain_touch (GdkEventButton* ev)
+bool
+GainMeterBase::gain_slider_button_release (GdkEventButton*)
{
- _io->gain_control()->list()->stop_touch ();
- return FALSE;
+ _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
+ return true;
}
gint
-GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
+GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
{
if (ev->type == GDK_BUTTON_RELEASE) {
return TRUE;
}
-
+
switch (ev->button) {
case 1:
gain_astate_menu.popup (1, ev->time);
}
gint
-GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
+GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
{
if (ev->type == GDK_BUTTON_RELEASE) {
return TRUE;
}
string
-GainMeter::astate_string (AutoState state)
+GainMeterBase::astate_string (AutoState state)
{
return _astate_string (state, false);
}
string
-GainMeter::short_astate_string (AutoState state)
+GainMeterBase::short_astate_string (AutoState state)
{
return _astate_string (state, true);
}
string
-GainMeter::_astate_string (AutoState state, bool shrt)
+GainMeterBase::_astate_string (AutoState state, bool shrt)
{
string sstr;
}
string
-GainMeter::astyle_string (AutoStyle style)
+GainMeterBase::astyle_string (AutoStyle style)
{
return _astyle_string (style, false);
}
string
-GainMeter::short_astyle_string (AutoStyle style)
+GainMeterBase::short_astyle_string (AutoStyle style)
{
return _astyle_string (style, true);
}
string
-GainMeter::_astyle_string (AutoStyle style, bool shrt)
+GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
{
if (style & Trim) {
return _("Trim");
}
void
-GainMeter::gain_automation_style_changed ()
+GainMeterBase::gain_automation_style_changed ()
{
- // Route* _route = dynamic_cast<Route*>(&_io);
switch (_width) {
case Wide:
- gain_automation_style_button.set_label (astyle_string(_io->gain_control()->list()->automation_style()));
+ gain_automation_style_button.set_label (astyle_string(_amp->gain_control()->alist()->automation_style()));
break;
case Narrow:
- gain_automation_style_button.set_label (short_astyle_string(_io->gain_control()->list()->automation_style()));
+ gain_automation_style_button.set_label (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
break;
}
}
void
-GainMeter::gain_automation_state_changed ()
+GainMeterBase::gain_automation_state_changed ()
{
- ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
- //Route* _route = dynamic_cast<Route*>(&_io);
-
+ ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
+
bool x;
switch (_width) {
case Wide:
- gain_automation_state_button.set_label (astate_string(_io->gain_control()->list()->automation_state()));
+ gain_automation_state_button.set_label (astate_string(_amp->gain_control()->alist()->automation_state()));
break;
case Narrow:
- gain_automation_state_button.set_label (short_astate_string(_io->gain_control()->list()->automation_state()));
+ gain_automation_state_button.set_label (short_astate_string(_amp->gain_control()->alist()->automation_state()));
break;
}
- x = (_io->gain_control()->list()->automation_state() != Off);
-
+ x = (_amp->gain_control()->alist()->automation_state() != Off);
+
if (gain_automation_state_button.get_active() != x) {
ignore_toggle = true;
gain_automation_state_button.set_active (x);
}
update_gain_sensitive ();
-
+
/* start watching automation so that things move */
-
+
gain_watching.disconnect();
if (x) {
- gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
+ gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
}
}
-void GainMeter::clear_meters ()
+void
+GainMeterBase::update_meters()
{
- for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
- (*i).meter->clear();
+ char buf[32];
+ float mpeak = level_meter->update_meters();
+
+ if (mpeak > max_peak) {
+ max_peak = mpeak;
+ if (mpeak <= -200.0f) {
+ peak_display.set_label (_("-inf"));
+ } else {
+ snprintf (buf, sizeof(buf), "%.1f", mpeak);
+ peak_display.set_label (buf);
+ }
+
+ if (mpeak >= 0.0f) {
+ peak_display.set_name ("MixerStripPeakDisplayPeak");
+ }
}
}
-void GainMeter::color_handler (bool dpi)
+void GainMeterBase::color_handler(bool dpi)
{
color_changed = true;
dpi_changed = (dpi) ? true : false;
setup_meters();
}
+
+void
+GainMeterBase::set_width (Width w, int len)
+{
+ _width = w;
+ level_meter->setup_meters (len);
+}
+
+
+void
+GainMeterBase::on_theme_changed()
+{
+ style_changed = true;
+}
+
+GainMeter::GainMeter (Session* s, int fader_length)
+ : GainMeterBase (s, slider, false, fader_length)
+ , gain_display_box(true, 0)
+ , hbox(true, 2)
+{
+ gain_display_box.pack_start (gain_display, true, true);
+
+ meter_metric_area.set_name ("AudioTrackMetrics");
+ set_size_request_to_display_given_text (meter_metric_area, "-127", 0, 0);
+
+ gain_automation_style_button.set_name ("MixerAutomationModeButton");
+ gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
+
+ ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
+ ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
+
+ gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
+ gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
+
+ gain_automation_state_button.set_size_request(15, 15);
+ gain_automation_style_button.set_size_request(15, 15);
+
+ fader_vbox = manage (new Gtk::VBox());
+ fader_vbox->set_spacing (0);
+ fader_vbox->pack_start (*gain_slider, true, true);
+
+ fader_alignment.set (0.5, 0.5, 0.0, 1.0);
+ fader_alignment.add (*fader_vbox);
+
+ hbox.pack_start (fader_alignment, true, true);
+
+ set_spacing (2);
+
+ pack_start (gain_display_box, Gtk::PACK_SHRINK);
+ pack_start (hbox, Gtk::PACK_SHRINK);
+
+ meter_alignment.set (0.5, 0.5, 0.0, 1.0);
+ meter_alignment.add (*level_meter);
+
+ meter_metric_area.signal_expose_event().connect (
+ sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
+}
+
+void
+GainMeter::set_controls (boost::shared_ptr<Route> r,
+ boost::shared_ptr<PeakMeter> meter,
+ boost::shared_ptr<Amp> amp)
+{
+ if (meter_alignment.get_parent()) {
+ hbox.remove (meter_alignment);
+ }
+
+ if (peak_display.get_parent()) {
+ gain_display_box.remove (peak_display);
+ }
+
+ if (gain_automation_state_button.get_parent()) {
+ fader_vbox->remove (gain_automation_state_button);
+ }
+
+ GainMeterBase::set_controls (r, meter, amp);
+
+ if (_meter) {
+ _meter->ConfigurationChanged.connect (
+ model_connections, invalidator (*this), ui_bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
+ );
+
+ meter_configuration_changed (_meter->input_streams ());
+ }
+
+
+ /*
+ if we have a non-hidden route (ie. we're not the click or the auditioner),
+ pack some route-dependent stuff.
+ */
+
+ gain_display_box.pack_end (peak_display, true, true);
+ hbox.pack_start (meter_alignment, true, true);
+
+ if (r && !r->is_hidden()) {
+ fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
+ }
+
+ setup_meters ();
+ hbox.show_all ();
+}
+
+int
+GainMeter::get_gm_width ()
+{
+ Gtk::Requisition sz;
+ hbox.size_request (sz);
+ return sz.width;
+}
+
+cairo_pattern_t*
+GainMeter::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);
+ PangoLayout* layout = gtk_widget_create_pango_layout (w.gobj(), "");
+
+ 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);
+
+ 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:
+ points.push_back (-50);
+ points.push_back (-40);
+ points.push_back (-30);
+ points.push_back (-20);
+ points.push_back (-10);
+ points.push_back (-3);
+ points.push_back (0);
+ points.push_back (4);
+ break;
+
+ case DataType::MIDI:
+ 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);
+ }
+ points.push_back (64);
+ points.push_back (96);
+ 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);
+ break;
+ case DataType::MIDI:
+ fraction = *j / 127.0;
+ break;
+ }
+
+ gint const pos = height - (gint) floor (height * fraction);
+
+ cairo_set_line_width (cr, 1.0);
+ cairo_move_to (cr, 0, pos);
+ cairo_line_to (cr, 4, pos);
+ cairo_stroke (cr);
+
+ snprintf (buf, sizeof (buf), "%d", abs (*j));
+ pango_layout_set_text (layout, buf, strlen (buf));
+
+ /* we want logical extents, not ink extents here */
+
+ int tw, th;
+ pango_layout_get_pixel_size (layout, &tw, &th);
+
+ int p = pos - (th / 2);
+ p = min (p, height - th);
+ p = max (p, 0);
+
+ cairo_move_to (cr, 6, p);
+ pango_cairo_show_layout (cr, layout);
+ }
+ }
+
+ 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);
+ g_object_unref (layout);
+
+ return pattern;
+}
+
+gint
+GainMeter::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() || style_changed || dpi_changed) {
+ 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);
+
+ style_changed = false;
+ dpi_changed = false;
+
+ cairo_destroy (cr);
+
+ return true;
+}
+
+boost::shared_ptr<PBD::Controllable>
+GainMeterBase::get_controllable()
+{
+ if (_amp) {
+ return _amp->gain_control();
+ } else {
+ return boost::shared_ptr<PBD::Controllable>();
+ }
+}
+
+void
+GainMeter::meter_configuration_changed (ChanCount c)
+{
+ _types.clear ();
+
+ for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
+ if (c.get (*i) > 0) {
+ _types.push_back (*i);
+ }
+ }
+
+ style_changed = true;
+ meter_metric_area.queue_draw ();
+}