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 (0.781787, 0.0, 1.0, 0.01, 0.1) // 0.781787 is the value needed for gain to be set to 0.
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 (v
)));
388 snprintf (buf
, sizeof (buf
), "%.1f", v
);
391 gain_display
.set_text (buf
);
395 GainMeterBase::gain_adjusted ()
397 if (!ignore_toggle
) {
398 if (_route
&& _route
->amp() == _amp
) {
400 _route
->set_gain (gain_adjustment
.get_value(), this);
402 _route
->set_gain (slider_position_to_gain (gain_adjustment
.get_value()), this);
405 _amp
->set_gain (slider_position_to_gain (gain_adjustment
.get_value()), this);
413 GainMeterBase::effective_gain_display ()
417 if (!_route
|| _route
->output()->n_ports().n_midi() == 0) {
418 value
= gain_to_slider_position (_amp
->gain());
420 value
= _amp
->gain ();
423 //cerr << this << " for " << _io->name() << " EGAIN = " << value
424 // << " AGAIN = " << gain_adjustment.get_value () << endl;
425 // stacktrace (cerr, 20);
427 if (gain_adjustment
.get_value() != value
) {
428 ignore_toggle
= true;
429 gain_adjustment
.set_value (value
);
430 ignore_toggle
= false;
435 GainMeterBase::gain_changed ()
437 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display
, this));
441 GainMeterBase::set_meter_strip_name (const char * name
)
443 meter_metric_area
.set_name (name
);
447 GainMeterBase::set_fader_name (const char * name
)
449 uint32_t rgb_active
= rgba_from_style (name
, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE
, false);
450 uint32_t rgb_normal
= rgba_from_style (name
, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL
, false);
452 gain_slider
->set_border_colors (rgb_normal
, rgb_active
);
456 GainMeterBase::update_gain_sensitive ()
458 bool x
= !(_amp
->gain_control()->alist()->automation_state() & Play
);
459 static_cast<Gtkmm2ext::SliderController
*>(gain_slider
)->set_sensitive (x
);
463 next_meter_point (MeterPoint mp
)
467 return MeterPreFader
;
471 return MeterPostFader
;
492 GainMeterBase::meter_press(GdkEventButton
* ev
)
494 wait_for_release
= false;
500 if (!ignore_toggle
) {
502 if (Keyboard::is_context_menu_event (ev
)) {
504 // no menu at this time.
508 if (Keyboard::is_button2_event(ev
)) {
510 // Primary-button2 click is the midi binding click
511 // button2-click is "momentary"
513 if (!Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
))) {
514 wait_for_release
= true;
515 old_meter_point
= _route
->meter_point ();
519 if (_route
&& (ev
->button
== 1 || Keyboard::is_button2_event (ev
))) {
521 if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
|Keyboard::TertiaryModifier
))) {
523 /* Primary+Tertiary-click applies change to all routes */
525 _session
->foreach_route (this, &GainMeterBase::set_meter_point
, next_meter_point (_route
->meter_point()));
528 } else if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
)) {
530 /* Primary-click: solo mix group.
531 NOTE: Primary-button2 is MIDI learn.
534 if (ev
->button
== 1) {
535 set_route_group_meter_point (*_route
, next_meter_point (_route
->meter_point()));
540 /* click: change just this route */
544 _route
->set_meter_point (next_meter_point (_route
->meter_point()));
555 GainMeterBase::meter_release(GdkEventButton
*)
557 if (!ignore_toggle
) {
558 if (wait_for_release
) {
559 wait_for_release
= false;
562 set_meter_point (*_route
, old_meter_point
);
571 GainMeterBase::set_meter_point (Route
& route
, MeterPoint mp
)
573 route
.set_meter_point (mp
);
577 GainMeterBase::set_route_group_meter_point (Route
& route
, MeterPoint mp
)
579 RouteGroup
* route_group
;
581 if ((route_group
= route
.route_group ()) != 0) {
582 route_group
->foreach_route (boost::bind (&Route::set_meter_point
, _1
, mp
, false));
584 route
.set_meter_point (mp
);
589 GainMeterBase::meter_point_clicked ()
597 GainMeterBase::gain_slider_button_press (GdkEventButton
* ev
)
600 case GDK_BUTTON_PRESS
:
601 _amp
->gain_control()->start_touch (_amp
->session().transport_frame());
611 GainMeterBase::gain_slider_button_release (GdkEventButton
* ev
)
613 _amp
->gain_control()->stop_touch (false, _amp
->session().transport_frame());
618 GainMeterBase::gain_automation_state_button_event (GdkEventButton
*ev
)
620 if (ev
->type
== GDK_BUTTON_RELEASE
) {
624 switch (ev
->button
) {
626 gain_astate_menu
.popup (1, ev
->time
);
636 GainMeterBase::gain_automation_style_button_event (GdkEventButton
*ev
)
638 if (ev
->type
== GDK_BUTTON_RELEASE
) {
642 switch (ev
->button
) {
644 gain_astyle_menu
.popup (1, ev
->time
);
653 GainMeterBase::astate_string (AutoState state
)
655 return _astate_string (state
, false);
659 GainMeterBase::short_astate_string (AutoState state
)
661 return _astate_string (state
, true);
665 GainMeterBase::_astate_string (AutoState state
, bool shrt
)
671 sstr
= (shrt
? "M" : _("M"));
674 sstr
= (shrt
? "P" : _("P"));
677 sstr
= (shrt
? "T" : _("T"));
680 sstr
= (shrt
? "W" : _("W"));
688 GainMeterBase::astyle_string (AutoStyle style
)
690 return _astyle_string (style
, false);
694 GainMeterBase::short_astyle_string (AutoStyle style
)
696 return _astyle_string (style
, true);
700 GainMeterBase::_astyle_string (AutoStyle style
, bool shrt
)
705 /* XXX it might different in different languages */
707 return (shrt
? _("Abs") : _("Abs"));
712 GainMeterBase::gain_automation_style_changed ()
716 gain_automation_style_button
.set_label (astyle_string(_amp
->gain_control()->alist()->automation_style()));
719 gain_automation_style_button
.set_label (short_astyle_string(_amp
->gain_control()->alist()->automation_style()));
725 GainMeterBase::gain_automation_state_changed ()
727 ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed
)
733 gain_automation_state_button
.set_label (astate_string(_amp
->gain_control()->alist()->automation_state()));
736 gain_automation_state_button
.set_label (short_astate_string(_amp
->gain_control()->alist()->automation_state()));
740 x
= (_amp
->gain_control()->alist()->automation_state() != Off
);
742 if (gain_automation_state_button
.get_active() != x
) {
743 ignore_toggle
= true;
744 gain_automation_state_button
.set_active (x
);
745 ignore_toggle
= false;
748 update_gain_sensitive ();
750 /* start watching automation so that things move */
752 gain_watching
.disconnect();
755 gain_watching
= ARDOUR_UI::RapidScreenUpdate
.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display
));
760 GainMeterBase::update_meters()
763 float mpeak
= level_meter
->update_meters();
765 if (mpeak
> max_peak
) {
767 if (mpeak
<= -200.0f
) {
768 peak_display
.set_label (_("-inf"));
770 snprintf (buf
, sizeof(buf
), "%.1f", mpeak
);
771 peak_display
.set_label (buf
);
775 peak_display
.set_name ("MixerStripPeakDisplayPeak");
780 void GainMeterBase::color_handler(bool dpi
)
782 color_changed
= true;
783 dpi_changed
= (dpi
) ? true : false;
788 GainMeterBase::set_width (Width w
, int len
)
791 level_meter
->setup_meters (len
);
796 GainMeterBase::on_theme_changed()
798 style_changed
= true;
801 GainMeter::GainMeter (Session
* s
, int fader_length
)
802 : GainMeterBase (s
, slider
, false, fader_length
)
803 , gain_display_box(true, 0)
806 gain_display_box
.pack_start (gain_display
, true, true);
808 meter_metric_area
.set_name ("AudioTrackMetrics");
809 set_size_request_to_display_given_text (meter_metric_area
, "-127", 0, 0);
811 gain_automation_style_button
.set_name ("MixerAutomationModeButton");
812 gain_automation_state_button
.set_name ("MixerAutomationPlaybackButton");
814 ARDOUR_UI::instance()->set_tip (gain_automation_state_button
, _("Fader automation mode"));
815 ARDOUR_UI::instance()->set_tip (gain_automation_style_button
, _("Fader automation type"));
817 gain_automation_style_button
.unset_flags (Gtk::CAN_FOCUS
);
818 gain_automation_state_button
.unset_flags (Gtk::CAN_FOCUS
);
820 gain_automation_state_button
.set_size_request(15, 15);
821 gain_automation_style_button
.set_size_request(15, 15);
823 fader_vbox
= manage (new Gtk::VBox());
824 fader_vbox
->set_spacing (0);
825 fader_vbox
->pack_start (*gain_slider
, true, true);
827 fader_alignment
.set (0.5, 0.5, 0.0, 1.0);
828 fader_alignment
.add (*fader_vbox
);
830 hbox
.pack_start (fader_alignment
, true, true);
834 pack_start (gain_display_box
, Gtk::PACK_SHRINK
);
835 pack_start (hbox
, Gtk::PACK_SHRINK
);
837 meter_alignment
.set (0.5, 0.5, 0.0, 1.0);
838 meter_alignment
.add (*level_meter
);
840 meter_metric_area
.signal_expose_event().connect (
841 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose
));
845 GainMeter::set_controls (boost::shared_ptr
<Route
> r
,
846 boost::shared_ptr
<PeakMeter
> meter
,
847 boost::shared_ptr
<Amp
> amp
)
849 if (meter_alignment
.get_parent()) {
850 hbox
.remove (meter_alignment
);
853 if (peak_display
.get_parent()) {
854 gain_display_box
.remove (peak_display
);
857 if (gain_automation_state_button
.get_parent()) {
858 fader_vbox
->remove (gain_automation_state_button
);
861 GainMeterBase::set_controls (r
, meter
, amp
);
864 _meter
->ConfigurationChanged
.connect (
865 model_connections
, invalidator (*this), ui_bind (&GainMeter::meter_configuration_changed
, this, _1
), gui_context()
868 meter_configuration_changed (_meter
->input_streams ());
873 if we have a non-hidden route (ie. we're not the click or the auditioner),
874 pack some route-dependent stuff.
877 gain_display_box
.pack_end (peak_display
, true, true);
878 hbox
.pack_start (meter_alignment
, true, true);
880 if (r
&& !r
->is_hidden()) {
881 fader_vbox
->pack_start (gain_automation_state_button
, false, false, 0);
889 GainMeter::get_gm_width ()
892 hbox
.size_request (sz
);
896 Glib::RefPtr
<Gdk::Pixmap
>
897 GainMeter::render_metrics (Gtk::Widget
& w
, vector
<DataType
> types
)
899 Glib::RefPtr
<Gdk::Window
> win (w
.get_window());
900 Glib::RefPtr
<Gdk::GC
> bg_gc (w
.get_style()->get_bg_gc (Gtk::STATE_NORMAL
));
903 win
->get_size (width
, height
);
905 Glib::RefPtr
<Gdk::Pixmap
> pixmap
= Gdk::Pixmap::create (win
, width
, height
);
907 metric_pixmaps
[w
.get_name()] = pixmap
;
909 pixmap
->draw_rectangle (bg_gc
, true, 0, 0, width
, height
);
911 Glib::RefPtr
<Pango::Layout
> layout
= w
.create_pango_layout ("");
913 for (vector
<DataType
>::const_iterator i
= types
.begin(); i
!= types
.end(); ++i
) {
915 Glib::RefPtr
<Gdk::GC
> fg_gc (w
.get_style()->get_fg_gc (Gtk::STATE_NORMAL
));
917 if (types
.size() > 1) {
918 /* we're overlaying more than 1 set of marks, so use different colours */
921 case DataType::AUDIO
:
922 c
.set_rgb_p (1, 1, 1);
925 c
.set_rgb_p (0.2, 0.2, 0.5);
929 fg_gc
->set_rgb_fg_color (c
);
935 case DataType::AUDIO
:
936 points
.push_back (-50);
937 points
.push_back (-40);
938 points
.push_back (-30);
939 points
.push_back (-20);
940 points
.push_back (-10);
941 points
.push_back (-3);
942 points
.push_back (0);
943 points
.push_back (4);
947 points
.push_back (0);
948 if (types
.size() == 1) {
949 points
.push_back (32);
951 /* tweak so as not to overlay the -30dB mark */
952 points
.push_back (48);
954 points
.push_back (64);
955 points
.push_back (96);
956 points
.push_back (127);
962 for (vector
<int>::const_iterator j
= points
.begin(); j
!= points
.end(); ++j
) {
966 case DataType::AUDIO
:
967 fraction
= log_meter (*j
);
970 fraction
= *j
/ 127.0;
974 gint
const pos
= height
- (gint
) floor (height
* fraction
);
976 snprintf (buf
, sizeof (buf
), "%d", abs (*j
));
978 layout
->set_text (buf
);
980 /* we want logical extents, not ink extents here */
983 layout
->get_pixel_size (tw
, th
);
985 pixmap
->draw_line (fg_gc
, 0, pos
, 4, pos
);
987 int p
= pos
- (th
/ 2);
988 p
= min (p
, height
- th
);
991 pixmap
->draw_layout (fg_gc
, 6, p
, layout
);
999 GainMeter::meter_metrics_expose (GdkEventExpose
*ev
)
1001 Glib::RefPtr
<Gdk::Window
> win (meter_metric_area
.get_window());
1002 Glib::RefPtr
<Gdk::GC
> bg_gc (meter_metric_area
.get_style()->get_bg_gc (Gtk::STATE_INSENSITIVE
));
1003 GdkRectangle base_rect
;
1004 GdkRectangle draw_rect
;
1007 win
->get_size (width
, height
);
1009 base_rect
.width
= width
;
1010 base_rect
.height
= height
;
1014 Glib::RefPtr
<Gdk::Pixmap
> pixmap
;
1015 std::map
<string
,Glib::RefPtr
<Gdk::Pixmap
> >::iterator i
= metric_pixmaps
.find (meter_metric_area
.get_name());
1017 if (i
== metric_pixmaps
.end() || style_changed
|| dpi_changed
) {
1018 pixmap
= render_metrics (meter_metric_area
, _types
);
1023 gdk_rectangle_intersect (&ev
->area
, &base_rect
, &draw_rect
);
1024 win
->draw_drawable (bg_gc
, pixmap
, draw_rect
.x
, draw_rect
.y
, draw_rect
.x
, draw_rect
.y
, draw_rect
.width
, draw_rect
.height
);
1025 style_changed
= false;
1029 boost::shared_ptr
<PBD::Controllable
>
1030 GainMeterBase::get_controllable()
1033 return _amp
->gain_control();
1035 return boost::shared_ptr
<PBD::Controllable
>();
1040 GainMeter::meter_configuration_changed (ChanCount c
)
1044 for (DataType::iterator i
= DataType::begin(); i
!= DataType::end(); ++i
) {
1045 if (c
.get (*i
) > 0) {
1046 _types
.push_back (*i
);
1050 style_changed
= true;
1051 meter_metric_area
.queue_draw ();