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 map
<string
,Glib::RefPtr
<Gdk::Pixmap
> > GainMeter::metric_pixmaps
;
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)
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 gain_slider
->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press
));
114 gain_slider
->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release
));
115 gain_slider
->set_name ("GainFader");
117 gain_display
.set_name ("MixerStripGainDisplay");
118 set_size_request_to_display_given_text (gain_display
, "-80.g", 2, 6); /* note the descender */
119 gain_display
.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated
));
120 gain_display
.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused
), false);
121 gain_display
.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused
), false);
123 peak_display
.set_name ("MixerStripPeakDisplay");
124 set_size_request_to_display_given_text (peak_display
, "-80.g", 2, 6); /* note the descender */
125 max_peak
= minus_infinity();
126 peak_display
.set_label (_("-inf"));
127 peak_display
.unset_flags (Gtk::CAN_FOCUS
);
129 gain_automation_style_button
.set_name ("MixerAutomationModeButton");
130 gain_automation_state_button
.set_name ("MixerAutomationPlaybackButton");
132 ARDOUR_UI::instance()->set_tip (gain_automation_state_button
, _("Fader automation mode"));
133 ARDOUR_UI::instance()->set_tip (gain_automation_style_button
, _("Fader automation type"));
135 gain_automation_style_button
.unset_flags (Gtk::CAN_FOCUS
);
136 gain_automation_state_button
.unset_flags (Gtk::CAN_FOCUS
);
138 gain_automation_state_button
.set_size_request(15, 15);
139 gain_automation_style_button
.set_size_request(15, 15);
141 gain_astyle_menu
.items().push_back (MenuElem (_("Trim")));
142 gain_astyle_menu
.items().push_back (MenuElem (_("Abs")));
144 gain_astate_menu
.set_name ("ArdourContextMenu");
145 gain_astyle_menu
.set_name ("ArdourContextMenu");
147 gain_adjustment
.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted
));
148 peak_display
.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release
), false);
149 gain_display
.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press
), false);
151 ResetAllPeakDisplays
.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display
));
152 ResetGroupPeakDisplays
.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display
));
154 UI::instance()->theme_changed
.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed
));
155 ColorsChanged
.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler
), false));
156 DPIReset
.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler
), true));
159 GainMeterBase::~GainMeterBase ()
166 GainMeterBase::set_controls (boost::shared_ptr
<Route
> r
,
167 boost::shared_ptr
<PeakMeter
> pm
,
168 boost::shared_ptr
<Amp
> amp
)
170 connections
.clear ();
171 model_connections
.drop_connections ();
174 level_meter
->set_meter (0);
175 gain_slider
->set_controllable (boost::shared_ptr
<PBD::Controllable
>());
186 level_meter
->set_meter (pm
.get());
187 gain_slider
->set_controllable (amp
->gain_control());
189 if (!_route
|| _route
->output()->n_ports().n_midi() == 0) {
191 gain_adjustment
.set_lower (0.0);
192 gain_adjustment
.set_upper (1.0);
193 gain_adjustment
.set_step_increment (0.01);
194 gain_adjustment
.set_page_increment (0.1);
197 gain_adjustment
.set_lower (0.0);
198 gain_adjustment
.set_upper (2.0);
199 gain_adjustment
.set_step_increment (0.05);
200 gain_adjustment
.set_page_increment (0.1);
203 if (!_route
|| !_route
->is_hidden()) {
205 using namespace Menu_Helpers
;
207 gain_astate_menu
.items().clear ();
209 gain_astate_menu
.items().push_back (MenuElem (_("Manual"),
210 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
211 Evoral::Parameter(GainAutomation
), (AutoState
) Off
)));
212 gain_astate_menu
.items().push_back (MenuElem (_("Play"),
213 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
214 Evoral::Parameter(GainAutomation
), (AutoState
) Play
)));
215 gain_astate_menu
.items().push_back (MenuElem (_("Write"),
216 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
217 Evoral::Parameter(GainAutomation
), (AutoState
) Write
)));
218 gain_astate_menu
.items().push_back (MenuElem (_("Touch"),
219 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
220 Evoral::Parameter(GainAutomation
), (AutoState
) Touch
)));
222 connections
.push_back (gain_automation_style_button
.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event
), false));
223 connections
.push_back (gain_automation_state_button
.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event
), false));
225 boost::shared_ptr
<AutomationControl
> gc
= amp
->gain_control();
227 gc
->alist()->automation_state_changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed
, this), gui_context());
228 gc
->alist()->automation_style_changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed
, this), gui_context());
230 gain_automation_state_changed ();
233 amp
->gain_control()->Changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeterBase::gain_changed
, this), gui_context());
237 update_gain_sensitive ();
241 GainMeterBase::hide_all_meters ()
243 level_meter
->hide_meters();
247 GainMeter::hide_all_meters ()
249 bool remove_metric_area
= false;
251 GainMeterBase::hide_all_meters ();
253 if (remove_metric_area
) {
254 if (meter_metric_area
.get_parent()) {
255 level_meter
->remove (meter_metric_area
);
261 GainMeterBase::setup_meters (int len
)
263 level_meter
->setup_meters(len
, 5);
267 GainMeter::setup_meters (int len
)
269 if (!meter_metric_area
.get_parent()) {
270 level_meter
->pack_end (meter_metric_area
, false, false);
271 meter_metric_area
.show_all ();
273 GainMeterBase::setup_meters (len
);
277 GainMeterBase::gain_key_press (GdkEventKey
* ev
)
279 if (key_is_legal_for_numeric_entry (ev
->keyval
)) {
280 /* drop through to normal handling */
283 /* illegal key for gain entry */
288 GainMeterBase::peak_button_release (GdkEventButton
* ev
)
290 /* reset peak label */
292 if (ev
->button
== 1 && Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
|Keyboard::TertiaryModifier
)) {
293 ResetAllPeakDisplays ();
294 } else if (ev
->button
== 1 && Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
)) {
296 ResetGroupPeakDisplays (_route
->route_group());
299 reset_peak_display ();
306 GainMeterBase::reset_peak_display ()
309 level_meter
->clear_meters();
310 max_peak
= -INFINITY
;
311 peak_display
.set_label (_("-Inf"));
312 peak_display
.set_name ("MixerStripPeakDisplay");
316 GainMeterBase::reset_group_peak_display (RouteGroup
* group
)
318 if (_route
&& group
== _route
->route_group()) {
319 reset_peak_display ();
324 GainMeterBase::popup_meter_menu (GdkEventButton
*ev
)
326 using namespace Menu_Helpers
;
328 if (meter_menu
== 0) {
329 meter_menu
= new Gtk::Menu
;
330 MenuList
& items
= meter_menu
->items();
332 items
.push_back (MenuElem ("-inf .. +0dBFS"));
333 items
.push_back (MenuElem ("-10dB .. +0dBFS"));
334 items
.push_back (MenuElem ("-4 .. +0dBFS"));
335 items
.push_back (SeparatorElem());
336 items
.push_back (MenuElem ("-inf .. -2dBFS"));
337 items
.push_back (MenuElem ("-10dB .. -2dBFS"));
338 items
.push_back (MenuElem ("-4 .. -2dBFS"));
341 meter_menu
->popup (1, ev
->time
);
345 GainMeterBase::gain_focused (GdkEventFocus
* ev
)
348 gain_display
.select_region (0, -1);
350 gain_display
.select_region (0, 0);
356 GainMeterBase::gain_activated ()
360 if (sscanf (gain_display
.get_text().c_str(), "%f", &f
) == 1) {
362 /* clamp to displayable values */
366 _amp
->set_gain (dB_to_coefficient(f
), this);
368 if (gain_display
.has_focus()) {
369 PublicEditor::instance().reset_focus();
375 GainMeterBase::show_gain ()
379 float v
= gain_adjustment
.get_value();
383 strcpy (buf
, _("-inf"));
385 snprintf (buf
, sizeof (buf
), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v
, Config
->get_max_gain())));
388 snprintf (buf
, sizeof (buf
), "%.1f", v
);
391 gain_display
.set_text (buf
);
395 GainMeterBase::gain_adjusted ()
397 if (!ignore_toggle
) {
399 _amp
->set_gain (gain_adjustment
.get_value(), this);
401 cerr
<< "reset gain using slider pos " << gain_adjustment
.get_value() << " to "
402 << slider_position_to_gain_with_max (gain_adjustment
.get_value(), Config
->get_max_gain())
404 _amp
->set_gain (slider_position_to_gain_with_max (gain_adjustment
.get_value(), Config
->get_max_gain()), this);
412 GainMeterBase::effective_gain_display ()
416 if (!_route
|| _route
->output()->n_ports().n_midi() == 0) {
417 value
= gain_to_slider_position_with_max (_amp
->gain(), Config
->get_max_gain());
419 value
= _amp
->gain ();
422 if (gain_adjustment
.get_value() != value
) {
423 ignore_toggle
= true;
424 gain_adjustment
.set_value (value
);
425 ignore_toggle
= false;
430 GainMeterBase::gain_changed ()
432 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display
, this));
436 GainMeterBase::set_meter_strip_name (const char * name
)
438 meter_metric_area
.set_name (name
);
442 GainMeterBase::set_fader_name (const char * name
)
444 uint32_t rgb_active
= rgba_from_style (name
, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE
, false);
445 uint32_t rgb_normal
= rgba_from_style (name
, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL
, false);
447 gain_slider
->set_border_colors (rgb_normal
, rgb_active
);
451 GainMeterBase::update_gain_sensitive ()
453 bool x
= !(_amp
->gain_control()->alist()->automation_state() & Play
);
454 static_cast<Gtkmm2ext::SliderController
*>(gain_slider
)->set_sensitive (x
);
458 next_meter_point (MeterPoint mp
)
462 return MeterPreFader
;
466 return MeterPostFader
;
487 GainMeterBase::meter_press(GdkEventButton
* ev
)
489 wait_for_release
= false;
495 if (!ignore_toggle
) {
497 if (Keyboard::is_context_menu_event (ev
)) {
499 // no menu at this time.
503 if (Keyboard::is_button2_event(ev
)) {
505 // Primary-button2 click is the midi binding click
506 // button2-click is "momentary"
508 if (!Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
))) {
509 wait_for_release
= true;
510 old_meter_point
= _route
->meter_point ();
514 if (_route
&& (ev
->button
== 1 || Keyboard::is_button2_event (ev
))) {
516 if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
|Keyboard::TertiaryModifier
))) {
518 /* Primary+Tertiary-click applies change to all routes */
520 _session
->foreach_route (this, &GainMeterBase::set_meter_point
, next_meter_point (_route
->meter_point()));
523 } else if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
)) {
525 /* Primary-click: solo mix group.
526 NOTE: Primary-button2 is MIDI learn.
529 if (ev
->button
== 1) {
530 set_route_group_meter_point (*_route
, next_meter_point (_route
->meter_point()));
535 /* click: change just this route */
539 _route
->set_meter_point (next_meter_point (_route
->meter_point()));
550 GainMeterBase::meter_release(GdkEventButton
*)
552 if (!ignore_toggle
) {
553 if (wait_for_release
) {
554 wait_for_release
= false;
557 set_meter_point (*_route
, old_meter_point
);
566 GainMeterBase::set_meter_point (Route
& route
, MeterPoint mp
)
568 route
.set_meter_point (mp
);
572 GainMeterBase::set_route_group_meter_point (Route
& route
, MeterPoint mp
)
574 RouteGroup
* route_group
;
576 if ((route_group
= route
.route_group ()) != 0) {
577 route_group
->foreach_route (boost::bind (&Route::set_meter_point
, _1
, mp
, false));
579 route
.set_meter_point (mp
);
584 GainMeterBase::meter_point_clicked ()
592 GainMeterBase::gain_slider_button_press (GdkEventButton
* ev
)
595 case GDK_BUTTON_PRESS
:
596 _amp
->gain_control()->start_touch (_amp
->session().transport_frame());
606 GainMeterBase::gain_slider_button_release (GdkEventButton
* ev
)
608 _amp
->gain_control()->stop_touch (false, _amp
->session().transport_frame());
613 GainMeterBase::gain_automation_state_button_event (GdkEventButton
*ev
)
615 if (ev
->type
== GDK_BUTTON_RELEASE
) {
619 switch (ev
->button
) {
621 gain_astate_menu
.popup (1, ev
->time
);
631 GainMeterBase::gain_automation_style_button_event (GdkEventButton
*ev
)
633 if (ev
->type
== GDK_BUTTON_RELEASE
) {
637 switch (ev
->button
) {
639 gain_astyle_menu
.popup (1, ev
->time
);
648 GainMeterBase::astate_string (AutoState state
)
650 return _astate_string (state
, false);
654 GainMeterBase::short_astate_string (AutoState state
)
656 return _astate_string (state
, true);
660 GainMeterBase::_astate_string (AutoState state
, bool shrt
)
666 sstr
= (shrt
? "M" : _("M"));
669 sstr
= (shrt
? "P" : _("P"));
672 sstr
= (shrt
? "T" : _("T"));
675 sstr
= (shrt
? "W" : _("W"));
683 GainMeterBase::astyle_string (AutoStyle style
)
685 return _astyle_string (style
, false);
689 GainMeterBase::short_astyle_string (AutoStyle style
)
691 return _astyle_string (style
, true);
695 GainMeterBase::_astyle_string (AutoStyle style
, bool shrt
)
700 /* XXX it might different in different languages */
702 return (shrt
? _("Abs") : _("Abs"));
707 GainMeterBase::gain_automation_style_changed ()
711 gain_automation_style_button
.set_label (astyle_string(_amp
->gain_control()->alist()->automation_style()));
714 gain_automation_style_button
.set_label (short_astyle_string(_amp
->gain_control()->alist()->automation_style()));
720 GainMeterBase::gain_automation_state_changed ()
722 ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed
)
728 gain_automation_state_button
.set_label (astate_string(_amp
->gain_control()->alist()->automation_state()));
731 gain_automation_state_button
.set_label (short_astate_string(_amp
->gain_control()->alist()->automation_state()));
735 x
= (_amp
->gain_control()->alist()->automation_state() != Off
);
737 if (gain_automation_state_button
.get_active() != x
) {
738 ignore_toggle
= true;
739 gain_automation_state_button
.set_active (x
);
740 ignore_toggle
= false;
743 update_gain_sensitive ();
745 /* start watching automation so that things move */
747 gain_watching
.disconnect();
750 gain_watching
= ARDOUR_UI::RapidScreenUpdate
.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display
));
755 GainMeterBase::update_meters()
758 float mpeak
= level_meter
->update_meters();
760 if (mpeak
> max_peak
) {
762 if (mpeak
<= -200.0f
) {
763 peak_display
.set_label (_("-inf"));
765 snprintf (buf
, sizeof(buf
), "%.1f", mpeak
);
766 peak_display
.set_label (buf
);
770 peak_display
.set_name ("MixerStripPeakDisplayPeak");
775 void GainMeterBase::color_handler(bool dpi
)
777 color_changed
= true;
778 dpi_changed
= (dpi
) ? true : false;
783 GainMeterBase::set_width (Width w
, int len
)
786 level_meter
->setup_meters (len
);
791 GainMeterBase::on_theme_changed()
793 style_changed
= true;
796 GainMeter::GainMeter (Session
* s
, int fader_length
)
797 : GainMeterBase (s
, slider
, false, fader_length
)
798 , gain_display_box(true, 0)
801 gain_display_box
.pack_start (gain_display
, true, true);
803 meter_metric_area
.set_name ("AudioTrackMetrics");
804 set_size_request_to_display_given_text (meter_metric_area
, "-127", 0, 0);
806 gain_automation_style_button
.set_name ("MixerAutomationModeButton");
807 gain_automation_state_button
.set_name ("MixerAutomationPlaybackButton");
809 ARDOUR_UI::instance()->set_tip (gain_automation_state_button
, _("Fader automation mode"));
810 ARDOUR_UI::instance()->set_tip (gain_automation_style_button
, _("Fader automation type"));
812 gain_automation_style_button
.unset_flags (Gtk::CAN_FOCUS
);
813 gain_automation_state_button
.unset_flags (Gtk::CAN_FOCUS
);
815 gain_automation_state_button
.set_size_request(15, 15);
816 gain_automation_style_button
.set_size_request(15, 15);
818 fader_vbox
= manage (new Gtk::VBox());
819 fader_vbox
->set_spacing (0);
820 fader_vbox
->pack_start (*gain_slider
, true, true);
822 fader_alignment
.set (0.5, 0.5, 0.0, 1.0);
823 fader_alignment
.add (*fader_vbox
);
825 hbox
.pack_start (fader_alignment
, true, true);
829 pack_start (gain_display_box
, Gtk::PACK_SHRINK
);
830 pack_start (hbox
, Gtk::PACK_SHRINK
);
832 meter_alignment
.set (0.5, 0.5, 0.0, 1.0);
833 meter_alignment
.add (*level_meter
);
835 meter_metric_area
.signal_expose_event().connect (
836 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose
));
840 GainMeter::set_controls (boost::shared_ptr
<Route
> r
,
841 boost::shared_ptr
<PeakMeter
> meter
,
842 boost::shared_ptr
<Amp
> amp
)
844 if (meter_alignment
.get_parent()) {
845 hbox
.remove (meter_alignment
);
848 if (peak_display
.get_parent()) {
849 gain_display_box
.remove (peak_display
);
852 if (gain_automation_state_button
.get_parent()) {
853 fader_vbox
->remove (gain_automation_state_button
);
856 GainMeterBase::set_controls (r
, meter
, amp
);
859 _meter
->ConfigurationChanged
.connect (
860 model_connections
, invalidator (*this), ui_bind (&GainMeter::meter_configuration_changed
, this, _1
), gui_context()
863 meter_configuration_changed (_meter
->input_streams ());
868 if we have a non-hidden route (ie. we're not the click or the auditioner),
869 pack some route-dependent stuff.
872 gain_display_box
.pack_end (peak_display
, true, true);
873 hbox
.pack_start (meter_alignment
, true, true);
875 if (r
&& !r
->is_hidden()) {
876 fader_vbox
->pack_start (gain_automation_state_button
, false, false, 0);
884 GainMeter::get_gm_width ()
887 hbox
.size_request (sz
);
891 Glib::RefPtr
<Gdk::Pixmap
>
892 GainMeter::render_metrics (Gtk::Widget
& w
, vector
<DataType
> types
)
894 Glib::RefPtr
<Gdk::Window
> win (w
.get_window());
895 Glib::RefPtr
<Gdk::GC
> bg_gc (w
.get_style()->get_bg_gc (Gtk::STATE_NORMAL
));
898 win
->get_size (width
, height
);
900 Glib::RefPtr
<Gdk::Pixmap
> pixmap
= Gdk::Pixmap::create (win
, width
, height
);
902 metric_pixmaps
[w
.get_name()] = pixmap
;
904 pixmap
->draw_rectangle (bg_gc
, true, 0, 0, width
, height
);
906 Glib::RefPtr
<Pango::Layout
> layout
= w
.create_pango_layout ("");
908 for (vector
<DataType
>::const_iterator i
= types
.begin(); i
!= types
.end(); ++i
) {
910 Glib::RefPtr
<Gdk::GC
> fg_gc (w
.get_style()->get_fg_gc (Gtk::STATE_NORMAL
));
912 if (types
.size() > 1) {
913 /* we're overlaying more than 1 set of marks, so use different colours */
916 case DataType::AUDIO
:
917 c
.set_rgb_p (1, 1, 1);
920 c
.set_rgb_p (0.2, 0.2, 0.5);
924 fg_gc
->set_rgb_fg_color (c
);
930 case DataType::AUDIO
:
931 points
.push_back (-50);
932 points
.push_back (-40);
933 points
.push_back (-30);
934 points
.push_back (-20);
935 points
.push_back (-10);
936 points
.push_back (-3);
937 points
.push_back (0);
938 points
.push_back (4);
942 points
.push_back (0);
943 if (types
.size() == 1) {
944 points
.push_back (32);
946 /* tweak so as not to overlay the -30dB mark */
947 points
.push_back (48);
949 points
.push_back (64);
950 points
.push_back (96);
951 points
.push_back (127);
957 for (vector
<int>::const_iterator j
= points
.begin(); j
!= points
.end(); ++j
) {
961 case DataType::AUDIO
:
962 fraction
= log_meter (*j
);
965 fraction
= *j
/ 127.0;
969 gint
const pos
= height
- (gint
) floor (height
* fraction
);
971 snprintf (buf
, sizeof (buf
), "%d", abs (*j
));
973 layout
->set_text (buf
);
975 /* we want logical extents, not ink extents here */
978 layout
->get_pixel_size (tw
, th
);
980 pixmap
->draw_line (fg_gc
, 0, pos
, 4, pos
);
982 int p
= pos
- (th
/ 2);
983 p
= min (p
, height
- th
);
986 pixmap
->draw_layout (fg_gc
, 6, p
, layout
);
994 GainMeter::meter_metrics_expose (GdkEventExpose
*ev
)
996 Glib::RefPtr
<Gdk::Window
> win (meter_metric_area
.get_window());
997 Glib::RefPtr
<Gdk::GC
> bg_gc (meter_metric_area
.get_style()->get_bg_gc (Gtk::STATE_INSENSITIVE
));
998 GdkRectangle base_rect
;
999 GdkRectangle draw_rect
;
1002 win
->get_size (width
, height
);
1004 base_rect
.width
= width
;
1005 base_rect
.height
= height
;
1009 Glib::RefPtr
<Gdk::Pixmap
> pixmap
;
1010 std::map
<string
,Glib::RefPtr
<Gdk::Pixmap
> >::iterator i
= metric_pixmaps
.find (meter_metric_area
.get_name());
1012 if (i
== metric_pixmaps
.end() || style_changed
|| dpi_changed
) {
1013 pixmap
= render_metrics (meter_metric_area
, _types
);
1018 gdk_rectangle_intersect (&ev
->area
, &base_rect
, &draw_rect
);
1019 win
->draw_drawable (bg_gc
, pixmap
, draw_rect
.x
, draw_rect
.y
, draw_rect
.x
, draw_rect
.y
, draw_rect
.width
, draw_rect
.height
);
1020 style_changed
= false;
1024 boost::shared_ptr
<PBD::Controllable
>
1025 GainMeterBase::get_controllable()
1028 return _amp
->gain_control();
1030 return boost::shared_ptr
<PBD::Controllable
>();
1035 GainMeter::meter_configuration_changed (ChanCount c
)
1039 for (DataType::iterator i
= DataType::begin(); i
!= DataType::end(); ++i
) {
1040 if (c
.get (*i
) > 0) {
1041 _types
.push_back (*i
);
1045 style_changed
= true;
1046 meter_metric_area
.queue_draw ();