2 Copyright (C) 2002 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "ardour/amp.h"
23 #include "ardour/route_group.h"
24 #include "ardour/session_route.h"
25 #include "ardour/dB.h"
26 #include "ardour/utils.h"
28 #include <gtkmm/style.h>
29 #include <gdkmm/color.h>
30 #include <gtkmm2ext/utils.h>
31 #include <gtkmm2ext/fastmeter.h>
32 #include <gtkmm2ext/barcontroller.h>
33 #include <gtkmm2ext/gtk_ui.h>
34 #include "midi++/manager.h"
35 #include "pbd/fastlog.h"
36 #include "pbd/stacktrace.h"
38 #include "ardour_ui.h"
39 #include "gain_meter.h"
40 #include "global_signals.h"
42 #include "gui_thread.h"
44 #include "public_editor.h"
47 #include "ardour/session.h"
48 #include "ardour/route.h"
49 #include "ardour/meter.h"
53 using namespace ARDOUR;
55 using namespace Gtkmm2ext;
58 using Gtkmm2ext::Keyboard;
60 sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
61 sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
63 GainMeter::MetricPatterns GainMeter::metric_patterns;
64 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
65 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider_desensitised;
69 GainMeter::setup_slider_pix ()
71 if ((slider = ::get_icon ("fader_belt")) == 0) {
72 throw failed_constructor();
75 if ((slider_desensitised = ::get_icon ("fader_belt_desensitised")) == 0) {
76 throw failed_constructor();
80 GainMeterBase::GainMeterBase (Session* s,
81 const Glib::RefPtr<Gdk::Pixbuf>& pix,
82 const Glib::RefPtr<Gdk::Pixbuf>& pix_desensitised,
85 : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
86 , gain_automation_style_button ("")
87 , gain_automation_state_button ("")
88 , style_changed (false)
90 , _data_type (DataType::AUDIO)
93 using namespace Menu_Helpers;
97 ignore_toggle = false;
99 next_release_selects = false;
103 gain_slider = manage (new HSliderController (pix,
109 gain_slider = manage (new VSliderController (pix,
116 level_meter = new LevelMeter(_session);
118 level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
119 meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
120 meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
122 gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press), false);
123 gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release), false);
124 gain_slider->set_name ("GainFader");
126 gain_display.set_name ("MixerStripGainDisplay");
127 set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
128 gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
129 gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
130 gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
132 peak_display.set_name ("MixerStripPeakDisplay");
133 set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
134 max_peak = minus_infinity();
135 peak_display.set_label (_("-inf"));
136 peak_display.unset_flags (Gtk::CAN_FOCUS);
138 gain_automation_style_button.set_name ("mixer strip button");
139 gain_automation_state_button.set_name ("mixer strip button");
141 ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
142 ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
144 gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
145 gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
147 gain_automation_state_button.set_size_request(15, 15);
148 gain_automation_style_button.set_size_request(15, 15);
150 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
151 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
153 gain_astate_menu.set_name ("ArdourContextMenu");
154 gain_astyle_menu.set_name ("ArdourContextMenu");
156 gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
157 peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
158 gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
160 ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
161 ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
163 UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
164 ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
165 DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
167 // PBD::ScopedConnection _config_connection;
168 // Config->ParameterChanged.connect ( _config_connection, MISSING_INVALIDATOR, boost::bind(&GainMeterBase::set_flat_buttons, this, _1), gui_context() );
172 GainMeterBase::set_flat_buttons ()
174 printf("set_flat_butt\n");
175 // gain_slider->set_flat_buttons( ARDOUR_UI::config()->flat_buttons.get() );
178 GainMeterBase::~GainMeterBase ()
185 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
186 boost::shared_ptr<PeakMeter> pm,
187 boost::shared_ptr<Amp> amp)
189 connections.clear ();
190 model_connections.drop_connections ();
193 level_meter->set_meter (0);
194 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
205 level_meter->set_meter (pm.get());
206 gain_slider->set_controllable (amp->gain_control());
209 amp->ConfigurationChanged.connect (
210 model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
214 setup_gain_adjustment ();
216 if (!_route || !_route->is_hidden()) {
218 using namespace Menu_Helpers;
220 gain_astate_menu.items().clear ();
222 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
223 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
224 Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
225 gain_astate_menu.items().push_back (MenuElem (_("Play"),
226 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
227 Evoral::Parameter(GainAutomation), (AutoState) Play)));
228 gain_astate_menu.items().push_back (MenuElem (_("Write"),
229 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
230 Evoral::Parameter(GainAutomation), (AutoState) Write)));
231 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
232 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
233 Evoral::Parameter(GainAutomation), (AutoState) Touch)));
235 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
236 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
238 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
240 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
241 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
243 gain_automation_state_changed ();
246 amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
250 update_gain_sensitive ();
254 GainMeterBase::setup_gain_adjustment ()
260 if (_previous_amp_output_streams == _amp->output_streams ()) {
264 ignore_toggle = true;
266 if (_amp->output_streams().n_midi() == 0) {
267 _data_type = DataType::AUDIO;
268 gain_adjustment.set_lower (0.0);
269 gain_adjustment.set_upper (1.0);
270 gain_adjustment.set_step_increment (0.01);
271 gain_adjustment.set_page_increment (0.1);
272 gain_slider->set_default_value (gain_to_slider_position (1));
274 _data_type = DataType::MIDI;
275 gain_adjustment.set_lower (0.0);
276 gain_adjustment.set_upper (2.0);
277 gain_adjustment.set_step_increment (1.0/128.0);
278 gain_adjustment.set_page_increment (10.0/128.0);
279 gain_slider->set_default_value (1.0);
282 ignore_toggle = false;
284 effective_gain_display ();
286 _previous_amp_output_streams = _amp->output_streams ();
290 GainMeterBase::hide_all_meters ()
292 level_meter->hide_meters();
296 GainMeter::hide_all_meters ()
298 bool remove_metric_area = false;
300 GainMeterBase::hide_all_meters ();
302 if (remove_metric_area) {
303 if (meter_metric_area.get_parent()) {
304 level_meter->remove (meter_metric_area);
310 GainMeterBase::setup_meters (int len)
312 level_meter->setup_meters(len, 5);
316 GainMeter::setup_meters (int len)
318 if (!meter_metric_area.get_parent()) {
319 level_meter->pack_end (meter_metric_area, false, false);
320 meter_metric_area.show_all ();
322 GainMeterBase::setup_meters (len);
326 GainMeterBase::gain_key_press (GdkEventKey* ev)
328 if (key_is_legal_for_numeric_entry (ev->keyval)) {
329 /* drop through to normal handling */
332 /* illegal key for gain entry */
337 GainMeterBase::peak_button_release (GdkEventButton* ev)
339 /* reset peak label */
341 if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
342 ResetAllPeakDisplays ();
343 } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
345 ResetGroupPeakDisplays (_route->route_group());
348 reset_peak_display ();
355 GainMeterBase::reset_peak_display ()
358 level_meter->clear_meters();
359 max_peak = -INFINITY;
360 peak_display.set_label (_("-Inf"));
361 peak_display.set_name ("MixerStripPeakDisplay");
365 GainMeterBase::reset_group_peak_display (RouteGroup* group)
367 if (_route && group == _route->route_group()) {
368 reset_peak_display ();
373 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
375 using namespace Menu_Helpers;
377 if (meter_menu == 0) {
378 meter_menu = new Gtk::Menu;
379 MenuList& items = meter_menu->items();
381 items.push_back (MenuElem ("-inf .. +0dBFS"));
382 items.push_back (MenuElem ("-10dB .. +0dBFS"));
383 items.push_back (MenuElem ("-4 .. +0dBFS"));
384 items.push_back (SeparatorElem());
385 items.push_back (MenuElem ("-inf .. -2dBFS"));
386 items.push_back (MenuElem ("-10dB .. -2dBFS"));
387 items.push_back (MenuElem ("-4 .. -2dBFS"));
390 meter_menu->popup (1, ev->time);
394 GainMeterBase::gain_focused (GdkEventFocus* ev)
397 gain_display.select_region (0, -1);
399 gain_display.select_region (0, 0);
405 GainMeterBase::gain_activated ()
410 // Switch to user's preferred locale so that
411 // if they use different LC_NUMERIC conventions,
412 // we will honor them.
414 PBD::LocaleGuard lg ("");
415 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
420 /* clamp to displayable values */
421 if (_data_type == DataType::AUDIO) {
423 _amp->set_gain (dB_to_coefficient(f), this);
425 f = min (fabs (f), 2.0f);
426 _amp->set_gain (f, this);
429 if (gain_display.has_focus()) {
430 Gtk::Widget* w = gain_display.get_toplevel();
432 Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
434 /* sigh. gtkmm doesn't wrap get_default_widget() */
437 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
439 gtk_widget_grab_focus (f);
448 GainMeterBase::show_gain ()
452 float v = gain_adjustment.get_value();
454 switch (_data_type) {
455 case DataType::AUDIO:
457 strcpy (buf, _("-inf"));
459 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
463 snprintf (buf, sizeof (buf), "%.1f", v);
467 gain_display.set_text (buf);
471 GainMeterBase::gain_adjusted ()
475 /* convert from adjustment range (0..1) to gain coefficient */
477 if (_data_type == DataType::AUDIO) {
478 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
480 value = gain_adjustment.get_value();
483 if (!ignore_toggle) {
484 if (_route && _route->amp() == _amp) {
485 _route->set_gain (value, this);
487 _amp->set_gain (value, this);
495 GainMeterBase::effective_gain_display ()
499 switch (_data_type) {
500 case DataType::AUDIO:
501 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
504 value = _amp->gain ();
508 if (gain_adjustment.get_value() != value) {
509 ignore_toggle = true;
510 gain_adjustment.set_value (value);
511 ignore_toggle = false;
516 GainMeterBase::gain_changed ()
518 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
522 GainMeterBase::set_meter_strip_name (const char * name)
524 meter_metric_area.set_name (name);
528 GainMeterBase::set_fader_name (const char * name)
530 uint32_t rgb_active = rgba_from_style (name, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE, false);
531 uint32_t rgb_normal = rgba_from_style (name, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL, false);
533 gain_slider->set_border_colors (rgb_normal, rgb_active);
537 GainMeterBase::update_gain_sensitive ()
539 bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
540 static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
544 next_meter_point (MeterPoint mp)
548 return MeterPreFader;
552 return MeterPostFader;
573 GainMeterBase::meter_press(GdkEventButton* ev)
575 wait_for_release = false;
581 if (!ignore_toggle) {
583 if (Keyboard::is_context_menu_event (ev)) {
585 // no menu at this time.
589 if (Keyboard::is_button2_event(ev)) {
591 // Primary-button2 click is the midi binding click
592 // button2-click is "momentary"
594 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
595 wait_for_release = true;
596 old_meter_point = _route->meter_point ();
600 if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
602 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
604 /* Primary+Tertiary-click applies change to all routes */
606 _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
609 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
611 /* Primary-click: solo mix group.
612 NOTE: Primary-button2 is MIDI learn.
615 if (ev->button == 1) {
616 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
621 /* click: change just this route */
625 _route->set_meter_point (next_meter_point (_route->meter_point()));
636 GainMeterBase::meter_release(GdkEventButton*)
638 if (!ignore_toggle) {
639 if (wait_for_release) {
640 wait_for_release = false;
643 set_meter_point (*_route, old_meter_point);
652 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
654 route.set_meter_point (mp);
658 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
660 RouteGroup* route_group;
662 if ((route_group = route.route_group ()) != 0) {
663 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
665 route.set_meter_point (mp);
670 GainMeterBase::meter_point_clicked ()
678 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
681 case GDK_BUTTON_PRESS:
682 _amp->gain_control()->start_touch (_amp->session().transport_frame());
692 GainMeterBase::gain_slider_button_release (GdkEventButton*)
694 _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
699 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
701 if (ev->type == GDK_BUTTON_RELEASE) {
705 switch (ev->button) {
707 gain_astate_menu.popup (1, ev->time);
717 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
719 if (ev->type == GDK_BUTTON_RELEASE) {
723 switch (ev->button) {
725 gain_astyle_menu.popup (1, ev->time);
734 GainMeterBase::astate_string (AutoState state)
736 return _astate_string (state, false);
740 GainMeterBase::short_astate_string (AutoState state)
742 return _astate_string (state, true);
746 GainMeterBase::_astate_string (AutoState state, bool shrt)
752 sstr = (shrt ? "M" : _("M"));
755 sstr = (shrt ? "P" : _("P"));
758 sstr = (shrt ? "T" : _("T"));
761 sstr = (shrt ? "W" : _("W"));
769 GainMeterBase::astyle_string (AutoStyle style)
771 return _astyle_string (style, false);
775 GainMeterBase::short_astyle_string (AutoStyle style)
777 return _astyle_string (style, true);
781 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
786 /* XXX it might different in different languages */
788 return (shrt ? _("Abs") : _("Abs"));
793 GainMeterBase::gain_automation_style_changed ()
797 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
800 gain_automation_style_button.set_text (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
806 GainMeterBase::gain_automation_state_changed ()
808 ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
814 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
817 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
821 x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
823 if (gain_automation_state_button.get_active() != x) {
824 ignore_toggle = true;
825 gain_automation_state_button.set_active (x);
826 ignore_toggle = false;
829 update_gain_sensitive ();
831 /* start watching automation so that things move */
833 gain_watching.disconnect();
836 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
841 GainMeterBase::update_meters()
844 float mpeak = level_meter->update_meters();
846 if (mpeak > max_peak) {
848 if (mpeak <= -200.0f) {
849 peak_display.set_label (_("-inf"));
851 snprintf (buf, sizeof(buf), "%.1f", mpeak);
852 peak_display.set_label (buf);
856 peak_display.set_name ("MixerStripPeakDisplayPeak");
861 void GainMeterBase::color_handler(bool dpi)
863 color_changed = true;
864 dpi_changed = (dpi) ? true : false;
869 GainMeterBase::set_width (Width w, int len)
872 level_meter->setup_meters (len);
877 GainMeterBase::on_theme_changed()
879 style_changed = true;
882 GainMeter::GainMeter (Session* s, int fader_length)
883 : GainMeterBase (s, slider, slider_desensitised, false, fader_length)
884 , gain_display_box(true, 0)
887 // gain_display_box.pack_start (gain_display, true, true);
889 meter_metric_area.set_name ("AudioTrackMetrics");
890 set_size_request_to_display_given_text (meter_metric_area, "-127", 0, 0);
892 gain_automation_style_button.set_name ("mixer strip button");
893 gain_automation_state_button.set_name ("mixer strip button");
895 ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
896 ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
898 gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
899 gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
901 gain_automation_state_button.set_size_request(15, 15);
902 gain_automation_style_button.set_size_request(15, 15);
904 fader_vbox = manage (new Gtk::VBox());
905 fader_vbox->set_spacing (0);
906 fader_vbox->pack_start (*gain_slider, true, true);
908 fader_alignment.set (0.5, 0.5, 0.0, 1.0);
909 fader_alignment.add (*fader_vbox);
911 hbox.pack_start (fader_alignment, true, true);
915 pack_start (gain_display_box, Gtk::PACK_SHRINK);
916 pack_start (hbox, Gtk::PACK_SHRINK);
918 meter_alignment.set (0.5, 0.5, 0.0, 1.0);
919 meter_alignment.add (*level_meter);
921 meter_metric_area.signal_expose_event().connect (
922 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
926 GainMeter::set_controls (boost::shared_ptr<Route> r,
927 boost::shared_ptr<PeakMeter> meter,
928 boost::shared_ptr<Amp> amp)
930 if (meter_alignment.get_parent()) {
931 hbox.remove (meter_alignment);
934 // if (peak_display.get_parent()) {
935 // gain_display_box.remove (peak_display);
938 // if (gain_automation_state_button.get_parent()) {
939 // fader_vbox->remove (gain_automation_state_button);
942 GainMeterBase::set_controls (r, meter, amp);
945 _meter->ConfigurationChanged.connect (
946 model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
949 meter_configuration_changed (_meter->input_streams ());
954 if we have a non-hidden route (ie. we're not the click or the auditioner),
955 pack some route-dependent stuff.
958 // gain_display_box.pack_end (peak_display, true, true);
959 hbox.pack_start (meter_alignment, true, true);
961 // if (r && !r->is_hidden()) {
962 // fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
970 GainMeter::get_gm_width ()
973 hbox.size_request (sz);
978 GainMeter::render_metrics (Gtk::Widget& w, vector<DataType> types)
980 Glib::RefPtr<Gdk::Window> win (w.get_window());
983 win->get_size (width, height);
985 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
986 cairo_t* cr = cairo_create (surface);
987 PangoLayout* layout = gtk_widget_create_pango_layout (w.gobj(), "");
989 cairo_move_to (cr, 0, 0);
990 cairo_rectangle (cr, 0, 0, width, height);
992 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
993 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
997 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
1001 if (types.size() > 1) {
1002 /* we're overlaying more than 1 set of marks, so use different colours */
1005 case DataType::AUDIO:
1006 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
1007 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1009 case DataType::MIDI:
1010 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
1011 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1015 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
1016 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1022 case DataType::AUDIO:
1023 points.push_back (-50);
1024 points.push_back (-40);
1025 points.push_back (-30);
1026 points.push_back (-20);
1027 points.push_back (-10);
1028 points.push_back (-3);
1029 points.push_back (0);
1030 points.push_back (4);
1033 case DataType::MIDI:
1034 points.push_back (0);
1035 if (types.size() == 1) {
1036 points.push_back (32);
1038 /* tweak so as not to overlay the -30dB mark */
1039 points.push_back (48);
1041 points.push_back (64);
1042 points.push_back (96);
1043 points.push_back (127);
1049 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
1053 case DataType::AUDIO:
1054 fraction = log_meter (*j);
1056 case DataType::MIDI:
1057 fraction = *j / 127.0;
1061 gint const pos = height - (gint) floor (height * fraction);
1063 cairo_set_line_width (cr, 1.0);
1064 cairo_move_to (cr, 0, pos);
1065 cairo_line_to (cr, 4, pos);
1068 snprintf (buf, sizeof (buf), "%d", abs (*j));
1069 pango_layout_set_text (layout, buf, strlen (buf));
1071 /* we want logical extents, not ink extents here */
1074 pango_layout_get_pixel_size (layout, &tw, &th);
1076 int p = pos - (th / 2);
1077 p = min (p, height - th);
1080 cairo_move_to (cr, 6, p);
1081 pango_cairo_show_layout (cr, layout);
1085 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
1086 MetricPatterns::iterator p;
1088 if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
1089 cairo_pattern_destroy (p->second);
1092 metric_patterns[w.get_name()] = pattern;
1095 cairo_surface_destroy (surface);
1096 g_object_unref (layout);
1102 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1104 Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
1107 cr = gdk_cairo_create (win->gobj());
1109 /* clip to expose area */
1111 gdk_cairo_rectangle (cr, &ev->area);
1114 cairo_pattern_t* pattern;
1115 MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
1117 if (i == metric_patterns.end() || style_changed || dpi_changed) {
1118 pattern = render_metrics (meter_metric_area, _types);
1120 pattern = i->second;
1123 cairo_move_to (cr, 0, 0);
1124 cairo_set_source (cr, pattern);
1127 win->get_size (width, height);
1129 cairo_rectangle (cr, 0, 0, width, height);
1132 style_changed = false;
1133 dpi_changed = false;
1140 boost::shared_ptr<PBD::Controllable>
1141 GainMeterBase::get_controllable()
1144 return _amp->gain_control();
1146 return boost::shared_ptr<PBD::Controllable>();
1151 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1153 return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1157 GainMeter::meter_configuration_changed (ChanCount c)
1161 for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1162 if (c.get (*i) > 0) {
1163 _types.push_back (*i);
1167 style_changed = true;
1168 meter_metric_area.queue_draw ();