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/io.h"
24 #include "ardour/route.h"
25 #include "ardour/route_group.h"
26 #include "ardour/session.h"
27 #include "ardour/session_route.h"
28 #include "ardour/dB.h"
29 #include "ardour/utils.h"
31 #include <gtkmm/style.h>
32 #include <gdkmm/color.h>
33 #include <gtkmm2ext/utils.h>
34 #include <gtkmm2ext/fastmeter.h>
35 #include <gtkmm2ext/barcontroller.h>
36 #include <gtkmm2ext/gtk_ui.h>
37 #include "midi++/manager.h"
38 #include "pbd/fastlog.h"
39 #include "pbd/stacktrace.h"
41 #include "ardour_ui.h"
42 #include "gain_meter.h"
43 #include "global_signals.h"
45 #include "gui_thread.h"
47 #include "public_editor.h"
50 #include "ardour/session.h"
51 #include "ardour/route.h"
52 #include "ardour/meter.h"
56 using namespace ARDOUR;
58 using namespace Gtkmm2ext;
61 using Gtkmm2ext::Keyboard;
63 sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
64 sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
66 GainMeter::MetricPatterns GainMeter::metric_patterns;
67 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
71 GainMeter::setup_slider_pix ()
73 if ((slider = ::get_icon ("fader_belt")) == 0) {
74 throw failed_constructor();
78 GainMeterBase::GainMeterBase (Session* s,
79 const Glib::RefPtr<Gdk::Pixbuf>& pix,
82 : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
83 , gain_automation_style_button ("")
84 , gain_automation_state_button ("")
85 , style_changed (false)
87 , _data_type (DataType::AUDIO)
90 using namespace Menu_Helpers;
94 ignore_toggle = false;
96 next_release_selects = false;
100 gain_slider = manage (new HSliderController (pix,
105 gain_slider = manage (new VSliderController (pix,
111 level_meter = new LevelMeter(_session);
113 level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
114 meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
115 meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
117 gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press));
118 gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release));
119 gain_slider->set_name ("GainFader");
121 gain_display.set_name ("MixerStripGainDisplay");
122 set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
123 gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
124 gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
125 gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
127 peak_display.set_name ("MixerStripPeakDisplay");
128 set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
129 max_peak = minus_infinity();
130 peak_display.set_label (_("-inf"));
131 peak_display.unset_flags (Gtk::CAN_FOCUS);
133 gain_automation_style_button.set_name ("MixerAutomationModeButton");
134 gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
136 ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
137 ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
139 gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
140 gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
142 gain_automation_state_button.set_size_request(15, 15);
143 gain_automation_style_button.set_size_request(15, 15);
145 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
146 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
148 gain_astate_menu.set_name ("ArdourContextMenu");
149 gain_astyle_menu.set_name ("ArdourContextMenu");
151 gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
152 peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
153 gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
155 ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
156 ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
158 UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
159 ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
160 DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
163 GainMeterBase::~GainMeterBase ()
170 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
171 boost::shared_ptr<PeakMeter> pm,
172 boost::shared_ptr<Amp> amp)
174 connections.clear ();
175 model_connections.drop_connections ();
178 level_meter->set_meter (0);
179 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
190 level_meter->set_meter (pm.get());
191 gain_slider->set_controllable (amp->gain_control());
194 amp->ConfigurationChanged.connect (
195 model_connections, invalidator (*this), ui_bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
199 setup_gain_adjustment ();
201 if (!_route || !_route->is_hidden()) {
203 using namespace Menu_Helpers;
205 gain_astate_menu.items().clear ();
207 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
208 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
209 Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
210 gain_astate_menu.items().push_back (MenuElem (_("Play"),
211 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
212 Evoral::Parameter(GainAutomation), (AutoState) Play)));
213 gain_astate_menu.items().push_back (MenuElem (_("Write"),
214 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
215 Evoral::Parameter(GainAutomation), (AutoState) Write)));
216 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
217 sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
218 Evoral::Parameter(GainAutomation), (AutoState) Touch)));
220 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
221 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
223 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
225 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
226 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
228 gain_automation_state_changed ();
231 amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
235 update_gain_sensitive ();
239 GainMeterBase::setup_gain_adjustment ()
245 if (_previous_amp_output_streams == _amp->output_streams ()) {
249 ignore_toggle = true;
251 if (_amp->output_streams().n_midi() == 0) {
252 _data_type = DataType::AUDIO;
253 gain_adjustment.set_lower (0.0);
254 gain_adjustment.set_upper (1.0);
255 gain_adjustment.set_step_increment (0.01);
256 gain_adjustment.set_page_increment (0.1);
257 gain_slider->set_default_value (gain_to_slider_position (1));
259 _data_type = DataType::MIDI;
260 gain_adjustment.set_lower (0.0);
261 gain_adjustment.set_upper (2.0);
262 gain_adjustment.set_step_increment (0.05);
263 gain_adjustment.set_page_increment (0.1);
264 gain_slider->set_default_value (1);
267 ignore_toggle = false;
269 effective_gain_display ();
271 _previous_amp_output_streams = _amp->output_streams ();
275 GainMeterBase::hide_all_meters ()
277 level_meter->hide_meters();
281 GainMeter::hide_all_meters ()
283 bool remove_metric_area = false;
285 GainMeterBase::hide_all_meters ();
287 if (remove_metric_area) {
288 if (meter_metric_area.get_parent()) {
289 level_meter->remove (meter_metric_area);
295 GainMeterBase::setup_meters (int len)
297 level_meter->setup_meters(len, 5);
301 GainMeter::setup_meters (int len)
303 if (!meter_metric_area.get_parent()) {
304 level_meter->pack_end (meter_metric_area, false, false);
305 meter_metric_area.show_all ();
307 GainMeterBase::setup_meters (len);
311 GainMeterBase::gain_key_press (GdkEventKey* ev)
313 if (key_is_legal_for_numeric_entry (ev->keyval)) {
314 /* drop through to normal handling */
317 /* illegal key for gain entry */
322 GainMeterBase::peak_button_release (GdkEventButton* ev)
324 /* reset peak label */
326 if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
327 ResetAllPeakDisplays ();
328 } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
330 ResetGroupPeakDisplays (_route->route_group());
333 reset_peak_display ();
340 GainMeterBase::reset_peak_display ()
343 level_meter->clear_meters();
344 max_peak = -INFINITY;
345 peak_display.set_label (_("-Inf"));
346 peak_display.set_name ("MixerStripPeakDisplay");
350 GainMeterBase::reset_group_peak_display (RouteGroup* group)
352 if (_route && group == _route->route_group()) {
353 reset_peak_display ();
358 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
360 using namespace Menu_Helpers;
362 if (meter_menu == 0) {
363 meter_menu = new Gtk::Menu;
364 MenuList& items = meter_menu->items();
366 items.push_back (MenuElem ("-inf .. +0dBFS"));
367 items.push_back (MenuElem ("-10dB .. +0dBFS"));
368 items.push_back (MenuElem ("-4 .. +0dBFS"));
369 items.push_back (SeparatorElem());
370 items.push_back (MenuElem ("-inf .. -2dBFS"));
371 items.push_back (MenuElem ("-10dB .. -2dBFS"));
372 items.push_back (MenuElem ("-4 .. -2dBFS"));
375 meter_menu->popup (1, ev->time);
379 GainMeterBase::gain_focused (GdkEventFocus* ev)
382 gain_display.select_region (0, -1);
384 gain_display.select_region (0, 0);
390 GainMeterBase::gain_activated ()
394 if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
396 /* clamp to displayable values */
400 _amp->set_gain (dB_to_coefficient(f), this);
402 if (gain_display.has_focus()) {
403 PublicEditor::instance().reset_focus();
409 GainMeterBase::show_gain ()
413 float v = gain_adjustment.get_value();
415 switch (_data_type) {
416 case DataType::AUDIO:
418 strcpy (buf, _("-inf"));
420 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
424 snprintf (buf, sizeof (buf), "%.1f", v);
428 gain_display.set_text (buf);
432 GainMeterBase::gain_adjusted ()
436 switch (_data_type) {
437 case DataType::AUDIO:
438 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
441 value = gain_adjustment.get_value ();
445 if (!ignore_toggle) {
446 if (_route && _route->amp() == _amp) {
447 _route->set_gain (value, this);
449 _amp->set_gain (value, this);
457 GainMeterBase::effective_gain_display ()
461 switch (_data_type) {
462 case DataType::AUDIO:
463 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
466 value = _amp->gain ();
470 if (gain_adjustment.get_value() != value) {
471 ignore_toggle = true;
472 gain_adjustment.set_value (value);
473 ignore_toggle = false;
478 GainMeterBase::gain_changed ()
480 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
484 GainMeterBase::set_meter_strip_name (const char * name)
486 meter_metric_area.set_name (name);
490 GainMeterBase::set_fader_name (const char * name)
492 uint32_t rgb_active = rgba_from_style (name, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE, false);
493 uint32_t rgb_normal = rgba_from_style (name, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL, false);
495 gain_slider->set_border_colors (rgb_normal, rgb_active);
499 GainMeterBase::update_gain_sensitive ()
501 bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
502 static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
506 next_meter_point (MeterPoint mp)
510 return MeterPreFader;
514 return MeterPostFader;
535 GainMeterBase::meter_press(GdkEventButton* ev)
537 wait_for_release = false;
543 if (!ignore_toggle) {
545 if (Keyboard::is_context_menu_event (ev)) {
547 // no menu at this time.
551 if (Keyboard::is_button2_event(ev)) {
553 // Primary-button2 click is the midi binding click
554 // button2-click is "momentary"
556 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
557 wait_for_release = true;
558 old_meter_point = _route->meter_point ();
562 if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
564 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
566 /* Primary+Tertiary-click applies change to all routes */
568 _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
571 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
573 /* Primary-click: solo mix group.
574 NOTE: Primary-button2 is MIDI learn.
577 if (ev->button == 1) {
578 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
583 /* click: change just this route */
587 _route->set_meter_point (next_meter_point (_route->meter_point()));
598 GainMeterBase::meter_release(GdkEventButton*)
600 if (!ignore_toggle) {
601 if (wait_for_release) {
602 wait_for_release = false;
605 set_meter_point (*_route, old_meter_point);
614 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
616 route.set_meter_point (mp);
620 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
622 RouteGroup* route_group;
624 if ((route_group = route.route_group ()) != 0) {
625 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
627 route.set_meter_point (mp);
632 GainMeterBase::meter_point_clicked ()
640 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
643 case GDK_BUTTON_PRESS:
644 _amp->gain_control()->start_touch (_amp->session().transport_frame());
654 GainMeterBase::gain_slider_button_release (GdkEventButton*)
656 _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
661 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
663 if (ev->type == GDK_BUTTON_RELEASE) {
667 switch (ev->button) {
669 gain_astate_menu.popup (1, ev->time);
679 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
681 if (ev->type == GDK_BUTTON_RELEASE) {
685 switch (ev->button) {
687 gain_astyle_menu.popup (1, ev->time);
696 GainMeterBase::astate_string (AutoState state)
698 return _astate_string (state, false);
702 GainMeterBase::short_astate_string (AutoState state)
704 return _astate_string (state, true);
708 GainMeterBase::_astate_string (AutoState state, bool shrt)
714 sstr = (shrt ? "M" : _("M"));
717 sstr = (shrt ? "P" : _("P"));
720 sstr = (shrt ? "T" : _("T"));
723 sstr = (shrt ? "W" : _("W"));
731 GainMeterBase::astyle_string (AutoStyle style)
733 return _astyle_string (style, false);
737 GainMeterBase::short_astyle_string (AutoStyle style)
739 return _astyle_string (style, true);
743 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
748 /* XXX it might different in different languages */
750 return (shrt ? _("Abs") : _("Abs"));
755 GainMeterBase::gain_automation_style_changed ()
759 gain_automation_style_button.set_label (astyle_string(_amp->gain_control()->alist()->automation_style()));
762 gain_automation_style_button.set_label (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
768 GainMeterBase::gain_automation_state_changed ()
770 ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
776 gain_automation_state_button.set_label (astate_string(_amp->gain_control()->alist()->automation_state()));
779 gain_automation_state_button.set_label (short_astate_string(_amp->gain_control()->alist()->automation_state()));
783 x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
785 if (gain_automation_state_button.get_active() != x) {
786 ignore_toggle = true;
787 gain_automation_state_button.set_active (x);
788 ignore_toggle = false;
791 update_gain_sensitive ();
793 /* start watching automation so that things move */
795 gain_watching.disconnect();
798 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
803 GainMeterBase::update_meters()
806 float mpeak = level_meter->update_meters();
808 if (mpeak > max_peak) {
810 if (mpeak <= -200.0f) {
811 peak_display.set_label (_("-inf"));
813 snprintf (buf, sizeof(buf), "%.1f", mpeak);
814 peak_display.set_label (buf);
818 peak_display.set_name ("MixerStripPeakDisplayPeak");
823 void GainMeterBase::color_handler(bool dpi)
825 color_changed = true;
826 dpi_changed = (dpi) ? true : false;
831 GainMeterBase::set_width (Width w, int len)
834 level_meter->setup_meters (len);
839 GainMeterBase::on_theme_changed()
841 style_changed = true;
844 GainMeter::GainMeter (Session* s, int fader_length)
845 : GainMeterBase (s, slider, false, fader_length)
846 , gain_display_box(true, 0)
849 gain_display_box.pack_start (gain_display, true, true);
851 meter_metric_area.set_name ("AudioTrackMetrics");
852 set_size_request_to_display_given_text (meter_metric_area, "-127", 0, 0);
854 gain_automation_style_button.set_name ("MixerAutomationModeButton");
855 gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
857 ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
858 ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
860 gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
861 gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
863 gain_automation_state_button.set_size_request(15, 15);
864 gain_automation_style_button.set_size_request(15, 15);
866 fader_vbox = manage (new Gtk::VBox());
867 fader_vbox->set_spacing (0);
868 fader_vbox->pack_start (*gain_slider, true, true);
870 fader_alignment.set (0.5, 0.5, 0.0, 1.0);
871 fader_alignment.add (*fader_vbox);
873 hbox.pack_start (fader_alignment, true, true);
877 pack_start (gain_display_box, Gtk::PACK_SHRINK);
878 pack_start (hbox, Gtk::PACK_SHRINK);
880 meter_alignment.set (0.5, 0.5, 0.0, 1.0);
881 meter_alignment.add (*level_meter);
883 meter_metric_area.signal_expose_event().connect (
884 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
888 GainMeter::set_controls (boost::shared_ptr<Route> r,
889 boost::shared_ptr<PeakMeter> meter,
890 boost::shared_ptr<Amp> amp)
892 if (meter_alignment.get_parent()) {
893 hbox.remove (meter_alignment);
896 if (peak_display.get_parent()) {
897 gain_display_box.remove (peak_display);
900 if (gain_automation_state_button.get_parent()) {
901 fader_vbox->remove (gain_automation_state_button);
904 GainMeterBase::set_controls (r, meter, amp);
907 _meter->ConfigurationChanged.connect (
908 model_connections, invalidator (*this), ui_bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
911 meter_configuration_changed (_meter->input_streams ());
916 if we have a non-hidden route (ie. we're not the click or the auditioner),
917 pack some route-dependent stuff.
920 gain_display_box.pack_end (peak_display, true, true);
921 hbox.pack_start (meter_alignment, true, true);
923 if (r && !r->is_hidden()) {
924 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
932 GainMeter::get_gm_width ()
935 hbox.size_request (sz);
940 GainMeter::render_metrics (Gtk::Widget& w, vector<DataType> types)
942 Glib::RefPtr<Gdk::Window> win (w.get_window());
945 win->get_size (width, height);
947 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
948 cairo_t* cr = cairo_create (surface);
949 PangoLayout* layout = gtk_widget_create_pango_layout (w.gobj(), "");
951 cairo_move_to (cr, 0, 0);
952 cairo_rectangle (cr, 0, 0, width, height);
954 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
955 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
959 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
963 if (types.size() > 1) {
964 /* we're overlaying more than 1 set of marks, so use different colours */
967 case DataType::AUDIO:
968 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
969 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
972 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
973 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
977 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
978 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
984 case DataType::AUDIO:
985 points.push_back (-50);
986 points.push_back (-40);
987 points.push_back (-30);
988 points.push_back (-20);
989 points.push_back (-10);
990 points.push_back (-3);
991 points.push_back (0);
992 points.push_back (4);
996 points.push_back (0);
997 if (types.size() == 1) {
998 points.push_back (32);
1000 /* tweak so as not to overlay the -30dB mark */
1001 points.push_back (48);
1003 points.push_back (64);
1004 points.push_back (96);
1005 points.push_back (127);
1011 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
1015 case DataType::AUDIO:
1016 fraction = log_meter (*j);
1018 case DataType::MIDI:
1019 fraction = *j / 127.0;
1023 gint const pos = height - (gint) floor (height * fraction);
1025 cairo_set_line_width (cr, 1.0);
1026 cairo_move_to (cr, 0, pos);
1027 cairo_line_to (cr, 4, pos);
1030 snprintf (buf, sizeof (buf), "%d", abs (*j));
1031 pango_layout_set_text (layout, buf, strlen (buf));
1033 /* we want logical extents, not ink extents here */
1036 pango_layout_get_pixel_size (layout, &tw, &th);
1038 int p = pos - (th / 2);
1039 p = min (p, height - th);
1042 cairo_move_to (cr, 6, p);
1043 pango_cairo_show_layout (cr, layout);
1047 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
1048 MetricPatterns::iterator p;
1050 if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
1051 cairo_pattern_destroy (p->second);
1054 metric_patterns[w.get_name()] = pattern;
1057 cairo_surface_destroy (surface);
1058 g_object_unref (layout);
1064 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1066 Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
1069 cr = gdk_cairo_create (win->gobj());
1071 /* clip to expose area */
1073 gdk_cairo_rectangle (cr, &ev->area);
1076 cairo_pattern_t* pattern;
1077 MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
1079 if (i == metric_patterns.end() || style_changed || dpi_changed) {
1080 pattern = render_metrics (meter_metric_area, _types);
1082 pattern = i->second;
1085 cairo_move_to (cr, 0, 0);
1086 cairo_set_source (cr, pattern);
1089 win->get_size (width, height);
1091 cairo_rectangle (cr, 0, 0, width, height);
1094 style_changed = false;
1095 dpi_changed = false;
1102 boost::shared_ptr<PBD::Controllable>
1103 GainMeterBase::get_controllable()
1106 return _amp->gain_control();
1108 return boost::shared_ptr<PBD::Controllable>();
1113 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1115 return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1119 GainMeter::meter_configuration_changed (ChanCount c)
1123 for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1124 if (c.get (*i) > 0) {
1125 _types.push_back (*i);
1129 style_changed = true;
1130 meter_metric_area.queue_draw ();