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::start_gain_touch
));
114 gain_slider
->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::end_gain_touch
));
115 gain_slider
->set_name ("GainFader");
117 gain_display
.set_name ("MixerStripGainDisplay");
118 gain_display
.set_has_frame (false);
119 set_size_request_to_display_given_text (gain_display
, "-80.g", 2, 6); /* note the descender */
120 gain_display
.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated
));
121 gain_display
.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused
), false);
122 gain_display
.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused
), false);
124 peak_display
.set_name ("MixerStripPeakDisplay");
125 // peak_display.set_has_frame (false);
126 // peak_display.set_editable (false);
127 set_size_request_to_display_given_text (peak_display
, "-80.g", 2, 6); /* note the descender */
128 max_peak
= minus_infinity();
129 peak_display
.set_label (_("-inf"));
130 peak_display
.unset_flags (Gtk::CAN_FOCUS
);
132 gain_automation_style_button
.set_name ("MixerAutomationModeButton");
133 gain_automation_state_button
.set_name ("MixerAutomationPlaybackButton");
135 ARDOUR_UI::instance()->set_tip (gain_automation_state_button
, _("Fader automation mode"));
136 ARDOUR_UI::instance()->set_tip (gain_automation_style_button
, _("Fader automation type"));
138 gain_automation_style_button
.unset_flags (Gtk::CAN_FOCUS
);
139 gain_automation_state_button
.unset_flags (Gtk::CAN_FOCUS
);
141 gain_automation_state_button
.set_size_request(15, 15);
142 gain_automation_style_button
.set_size_request(15, 15);
144 gain_astyle_menu
.items().push_back (MenuElem (_("Trim")));
145 gain_astyle_menu
.items().push_back (MenuElem (_("Abs")));
147 gain_astate_menu
.set_name ("ArdourContextMenu");
148 gain_astyle_menu
.set_name ("ArdourContextMenu");
150 gain_adjustment
.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted
));
151 peak_display
.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release
), false);
152 gain_display
.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press
), false);
154 ResetAllPeakDisplays
.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display
));
155 ResetGroupPeakDisplays
.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display
));
157 UI::instance()->theme_changed
.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed
));
158 ColorsChanged
.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler
), false));
159 DPIReset
.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler
), true));
162 GainMeterBase::~GainMeterBase ()
169 GainMeterBase::set_controls (boost::shared_ptr
<Route
> r
,
170 boost::shared_ptr
<PeakMeter
> pm
,
171 boost::shared_ptr
<Amp
> amp
)
173 connections
.clear ();
174 model_connections
.drop_connections ();
177 level_meter
->set_meter (0);
178 gain_slider
->set_controllable (boost::shared_ptr
<PBD::Controllable
>());
189 level_meter
->set_meter (pm
.get());
190 gain_slider
->set_controllable (amp
->gain_control());
192 if (!_route
|| _route
->output()->n_ports().n_midi() == 0) {
194 gain_adjustment
.set_lower (0.0);
195 gain_adjustment
.set_upper (1.0);
196 gain_adjustment
.set_step_increment (0.01);
197 gain_adjustment
.set_page_increment (0.1);
200 gain_adjustment
.set_lower (0.0);
201 gain_adjustment
.set_upper (2.0);
202 gain_adjustment
.set_step_increment (0.05);
203 gain_adjustment
.set_page_increment (0.1);
206 if (!_route
|| !_route
->is_hidden()) {
208 using namespace Menu_Helpers
;
210 gain_astate_menu
.items().clear ();
212 gain_astate_menu
.items().push_back (MenuElem (_("Manual"),
213 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
214 Evoral::Parameter(GainAutomation
), (AutoState
) Off
)));
215 gain_astate_menu
.items().push_back (MenuElem (_("Play"),
216 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
217 Evoral::Parameter(GainAutomation
), (AutoState
) Play
)));
218 gain_astate_menu
.items().push_back (MenuElem (_("Write"),
219 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
220 Evoral::Parameter(GainAutomation
), (AutoState
) Write
)));
221 gain_astate_menu
.items().push_back (MenuElem (_("Touch"),
222 sigc::bind (sigc::mem_fun (*(amp
.get()), &Automatable::set_parameter_automation_state
),
223 Evoral::Parameter(GainAutomation
), (AutoState
) Touch
)));
225 connections
.push_back (gain_automation_style_button
.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event
), false));
226 connections
.push_back (gain_automation_state_button
.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event
), false));
228 boost::shared_ptr
<AutomationControl
> gc
= amp
->gain_control();
230 gc
->alist()->automation_state_changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed
, this), gui_context());
231 gc
->alist()->automation_style_changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed
, this), gui_context());
233 gain_automation_state_changed ();
236 amp
->gain_control()->Changed
.connect (model_connections
, invalidator (*this), boost::bind (&GainMeterBase::gain_changed
, this), gui_context());
240 update_gain_sensitive ();
244 GainMeterBase::hide_all_meters ()
246 level_meter
->hide_meters();
250 GainMeter::hide_all_meters ()
252 bool remove_metric_area
= false;
254 GainMeterBase::hide_all_meters ();
256 if (remove_metric_area
) {
257 if (meter_metric_area
.get_parent()) {
258 level_meter
->remove (meter_metric_area
);
264 GainMeterBase::setup_meters (int len
)
266 level_meter
->setup_meters(len
, 5);
270 GainMeter::setup_meters (int len
)
272 if (!meter_metric_area
.get_parent()) {
273 level_meter
->pack_end (meter_metric_area
, false, false);
274 meter_metric_area
.show_all ();
276 GainMeterBase::setup_meters (len
);
280 GainMeterBase::gain_key_press (GdkEventKey
* ev
)
282 if (key_is_legal_for_numeric_entry (ev
->keyval
)) {
283 /* drop through to normal handling */
286 /* illegal key for gain entry */
291 GainMeterBase::peak_button_release (GdkEventButton
* ev
)
293 /* reset peak label */
295 if (ev
->button
== 1 && Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
|Keyboard::TertiaryModifier
)) {
296 ResetAllPeakDisplays ();
297 } else if (ev
->button
== 1 && Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
)) {
299 ResetGroupPeakDisplays (_route
->route_group());
302 reset_peak_display ();
309 GainMeterBase::reset_peak_display ()
312 level_meter
->clear_meters();
313 max_peak
= -INFINITY
;
314 peak_display
.set_label (_("-Inf"));
315 peak_display
.set_name ("MixerStripPeakDisplay");
319 GainMeterBase::reset_group_peak_display (RouteGroup
* group
)
321 if (_route
&& group
== _route
->route_group()) {
322 reset_peak_display ();
327 GainMeterBase::popup_meter_menu (GdkEventButton
*ev
)
329 using namespace Menu_Helpers
;
331 if (meter_menu
== 0) {
332 meter_menu
= new Gtk::Menu
;
333 MenuList
& items
= meter_menu
->items();
335 items
.push_back (MenuElem ("-inf .. +0dBFS"));
336 items
.push_back (MenuElem ("-10dB .. +0dBFS"));
337 items
.push_back (MenuElem ("-4 .. +0dBFS"));
338 items
.push_back (SeparatorElem());
339 items
.push_back (MenuElem ("-inf .. -2dBFS"));
340 items
.push_back (MenuElem ("-10dB .. -2dBFS"));
341 items
.push_back (MenuElem ("-4 .. -2dBFS"));
344 meter_menu
->popup (1, ev
->time
);
348 GainMeterBase::gain_focused (GdkEventFocus
* ev
)
351 gain_display
.select_region (0, -1);
353 gain_display
.select_region (0, 0);
359 GainMeterBase::gain_activated ()
363 if (sscanf (gain_display
.get_text().c_str(), "%f", &f
) == 1) {
365 /* clamp to displayable values */
369 _amp
->set_gain (dB_to_coefficient(f
), this);
371 if (gain_display
.has_focus()) {
372 PublicEditor::instance().reset_focus();
378 GainMeterBase::show_gain ()
382 float v
= gain_adjustment
.get_value();
386 strcpy (buf
, _("-inf"));
388 snprintf (buf
, sizeof (buf
), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain (v
)));
391 snprintf (buf
, sizeof (buf
), "%.1f", v
);
394 gain_display
.set_text (buf
);
398 GainMeterBase::gain_adjusted ()
400 if (!ignore_toggle
) {
402 if (_route
->amp() == _amp
) {
404 _route
->set_gain (gain_adjustment
.get_value(), this);
406 _route
->set_gain (slider_position_to_gain (gain_adjustment
.get_value()), this);
409 _amp
->set_gain (slider_position_to_gain (gain_adjustment
.get_value()), this);
418 GainMeterBase::effective_gain_display ()
422 if (!_route
|| _route
->output()->n_ports().n_midi() == 0) {
423 value
= gain_to_slider_position (_amp
->gain());
425 value
= _amp
->gain ();
428 //cerr << this << " for " << _io->name() << " EGAIN = " << value
429 // << " AGAIN = " << gain_adjustment.get_value () << endl;
430 // stacktrace (cerr, 20);
432 if (gain_adjustment
.get_value() != value
) {
433 ignore_toggle
= true;
434 gain_adjustment
.set_value (value
);
435 ignore_toggle
= false;
440 GainMeterBase::gain_changed ()
442 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display
, this));
446 GainMeterBase::set_meter_strip_name (const char * name
)
448 meter_metric_area
.set_name (name
);
452 GainMeterBase::set_fader_name (const char * name
)
454 gain_slider
->set_name (name
);
458 GainMeterBase::update_gain_sensitive ()
460 bool x
= !(_amp
->gain_control()->alist()->automation_state() & Play
);
461 static_cast<Gtkmm2ext::SliderController
*>(gain_slider
)->set_sensitive (x
);
465 next_meter_point (MeterPoint mp
)
469 return MeterPreFader
;
473 return MeterPostFader
;
490 GainMeterBase::meter_press(GdkEventButton
* ev
)
492 wait_for_release
= false;
498 if (!ignore_toggle
) {
500 if (Keyboard::is_context_menu_event (ev
)) {
502 // no menu at this time.
506 if (Keyboard::is_button2_event(ev
)) {
508 // Primary-button2 click is the midi binding click
509 // button2-click is "momentary"
511 if (!Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
))) {
512 wait_for_release
= true;
513 old_meter_point
= _route
->meter_point ();
517 if (_route
&& (ev
->button
== 1 || Keyboard::is_button2_event (ev
))) {
519 if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::ModifierMask (Keyboard::PrimaryModifier
|Keyboard::TertiaryModifier
))) {
521 /* Primary+Tertiary-click applies change to all routes */
523 _session
->foreach_route (this, &GainMeterBase::set_meter_point
, next_meter_point (_route
->meter_point()));
526 } else if (Keyboard::modifier_state_equals (ev
->state
, Keyboard::PrimaryModifier
)) {
528 /* Primary-click: solo mix group.
529 NOTE: Primary-button2 is MIDI learn.
532 if (ev
->button
== 1) {
533 set_mix_group_meter_point (*_route
, next_meter_point (_route
->meter_point()));
538 /* click: change just this route */
542 _route
->set_meter_point (next_meter_point (_route
->meter_point()));
553 GainMeterBase::meter_release(GdkEventButton
*)
556 if (wait_for_release
){
557 wait_for_release
= false;
560 set_meter_point (*_route
, old_meter_point
);
569 GainMeterBase::set_meter_point (Route
& route
, MeterPoint mp
)
571 route
.set_meter_point (mp
);
575 GainMeterBase::set_mix_group_meter_point (Route
& route
, MeterPoint mp
)
577 RouteGroup
* mix_group
;
579 if((mix_group
= route
.route_group()) != 0){
580 mix_group
->apply (&Route::set_meter_point
, mp
);
582 route
.set_meter_point (mp
);
587 GainMeterBase::meter_point_clicked ()
595 GainMeterBase::start_gain_touch (GdkEventButton
*)
597 _amp
->gain_control()->start_touch (_amp
->session().transport_frame());
602 GainMeterBase::end_gain_touch (GdkEventButton
*)
604 _amp
->gain_control()->stop_touch (false, _amp
->session().transport_frame());
609 GainMeterBase::gain_automation_state_button_event (GdkEventButton
*ev
)
611 if (ev
->type
== GDK_BUTTON_RELEASE
) {
615 switch (ev
->button
) {
617 gain_astate_menu
.popup (1, ev
->time
);
627 GainMeterBase::gain_automation_style_button_event (GdkEventButton
*ev
)
629 if (ev
->type
== GDK_BUTTON_RELEASE
) {
633 switch (ev
->button
) {
635 gain_astyle_menu
.popup (1, ev
->time
);
644 GainMeterBase::astate_string (AutoState state
)
646 return _astate_string (state
, false);
650 GainMeterBase::short_astate_string (AutoState state
)
652 return _astate_string (state
, true);
656 GainMeterBase::_astate_string (AutoState state
, bool shrt
)
662 sstr
= (shrt
? "M" : _("M"));
665 sstr
= (shrt
? "P" : _("P"));
668 sstr
= (shrt
? "T" : _("T"));
671 sstr
= (shrt
? "W" : _("W"));
679 GainMeterBase::astyle_string (AutoStyle style
)
681 return _astyle_string (style
, false);
685 GainMeterBase::short_astyle_string (AutoStyle style
)
687 return _astyle_string (style
, true);
691 GainMeterBase::_astyle_string (AutoStyle style
, bool shrt
)
696 /* XXX it might different in different languages */
698 return (shrt
? _("Abs") : _("Abs"));
703 GainMeterBase::gain_automation_style_changed ()
707 gain_automation_style_button
.set_label (astyle_string(_amp
->gain_control()->alist()->automation_style()));
710 gain_automation_style_button
.set_label (short_astyle_string(_amp
->gain_control()->alist()->automation_style()));
716 GainMeterBase::gain_automation_state_changed ()
718 ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed
)
724 gain_automation_state_button
.set_label (astate_string(_amp
->gain_control()->alist()->automation_state()));
727 gain_automation_state_button
.set_label (short_astate_string(_amp
->gain_control()->alist()->automation_state()));
731 x
= (_amp
->gain_control()->alist()->automation_state() != Off
);
733 if (gain_automation_state_button
.get_active() != x
) {
734 ignore_toggle
= true;
735 gain_automation_state_button
.set_active (x
);
736 ignore_toggle
= false;
739 update_gain_sensitive ();
741 /* start watching automation so that things move */
743 gain_watching
.disconnect();
746 gain_watching
= ARDOUR_UI::RapidScreenUpdate
.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display
));
751 GainMeterBase::update_meters()
754 float mpeak
= level_meter
->update_meters();
756 if (mpeak
> max_peak
) {
758 if (mpeak
<= -200.0f
) {
759 peak_display
.set_label (_("-inf"));
761 snprintf (buf
, sizeof(buf
), "%.1f", mpeak
);
762 peak_display
.set_label (buf
);
766 peak_display
.set_name ("MixerStripPeakDisplayPeak");
771 void GainMeterBase::color_handler(bool dpi
)
773 color_changed
= true;
774 dpi_changed
= (dpi
) ? true : false;
779 GainMeterBase::set_width (Width w
, int len
)
782 level_meter
->setup_meters (len
);
787 GainMeterBase::on_theme_changed()
789 style_changed
= true;
792 GainMeter::GainMeter (Session
* s
, int fader_length
)
793 : GainMeterBase (s
, slider
, false, fader_length
)
795 gain_display_box
.set_homogeneous (true);
796 gain_display_box
.set_spacing (2);
797 gain_display_box
.pack_start (gain_display
, true, true);
799 meter_metric_area
.set_name ("AudioTrackMetrics");
800 set_size_request_to_display_given_text (meter_metric_area
, "-50", 0, 0);
802 gain_automation_style_button
.set_name ("MixerAutomationModeButton");
803 gain_automation_state_button
.set_name ("MixerAutomationPlaybackButton");
805 ARDOUR_UI::instance()->set_tip (gain_automation_state_button
, _("Fader automation mode"));
806 ARDOUR_UI::instance()->set_tip (gain_automation_style_button
, _("Fader automation type"));
808 gain_automation_style_button
.unset_flags (Gtk::CAN_FOCUS
);
809 gain_automation_state_button
.unset_flags (Gtk::CAN_FOCUS
);
811 gain_automation_state_button
.set_size_request(15, 15);
812 gain_automation_style_button
.set_size_request(15, 15);
814 HBox
* fader_centering_box
= manage (new HBox
);
815 fader_centering_box
->pack_start (*gain_slider
, true, false);
817 fader_vbox
= manage (new Gtk::VBox());
818 fader_vbox
->set_spacing (0);
819 fader_vbox
->pack_start (*fader_centering_box
, false, false, 0);
821 hbox
.set_spacing (2);
822 hbox
.pack_start (*fader_vbox
, true, true);
826 pack_start (gain_display_box
, Gtk::PACK_SHRINK
);
827 pack_start (hbox
, Gtk::PACK_SHRINK
);
829 meter_metric_area
.signal_expose_event().connect (sigc::mem_fun(*this, &GainMeter::meter_metrics_expose
));
833 GainMeter::set_controls (boost::shared_ptr
<Route
> r
,
834 boost::shared_ptr
<PeakMeter
> meter
,
835 boost::shared_ptr
<Amp
> amp
)
837 if (level_meter
->get_parent()) {
838 hbox
.remove (*level_meter
);
841 if (peak_display
.get_parent()) {
842 gain_display_box
.remove (peak_display
);
845 if (gain_automation_state_button
.get_parent()) {
846 fader_vbox
->remove (gain_automation_state_button
);
849 GainMeterBase::set_controls (r
, meter
, amp
);
852 if we have a non-hidden route (ie. we're not the click or the auditioner),
853 pack some route-dependent stuff.
856 gain_display_box
.pack_end (peak_display
, true, true);
857 hbox
.pack_end (*level_meter
, true, true);
859 if (r
&& !r
->is_hidden()) {
860 fader_vbox
->pack_start (gain_automation_state_button
, false, false, 0);
868 GainMeter::get_gm_width ()
871 hbox
.size_request (sz
);
875 Glib::RefPtr
<Gdk::Pixmap
>
876 GainMeter::render_metrics (Gtk::Widget
& w
)
878 Glib::RefPtr
<Gdk::Window
> win (w
.get_window());
879 Glib::RefPtr
<Gdk::GC
> fg_gc (w
.get_style()->get_fg_gc (Gtk::STATE_NORMAL
));
880 Glib::RefPtr
<Gdk::GC
> bg_gc (w
.get_style()->get_bg_gc (Gtk::STATE_NORMAL
));
882 int db_points
[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
885 win
->get_size (width
, height
);
887 Glib::RefPtr
<Gdk::Pixmap
> pixmap
= Gdk::Pixmap::create (win
, width
, height
);
889 metric_pixmaps
[w
.get_name()] = pixmap
;
891 pixmap
->draw_rectangle (bg_gc
, true, 0, 0, width
, height
);
893 Glib::RefPtr
<Pango::Layout
> layout
= w
.create_pango_layout("");
895 for (uint32_t i
= 0; i
< sizeof (db_points
)/sizeof (db_points
[0]); ++i
) {
897 float fraction
= log_meter (db_points
[i
]);
898 gint pos
= height
- (gint
) floor (height
* fraction
);
900 snprintf (buf
, sizeof (buf
), "%d", abs (db_points
[i
]));
902 layout
->set_text (buf
);
904 /* we want logical extents, not ink extents here */
907 layout
->get_pixel_size (width
, height
);
909 pixmap
->draw_line (fg_gc
, 0, pos
, 4, pos
);
910 pixmap
->draw_layout (fg_gc
, 6, pos
- (height
/2), layout
);
917 GainMeter::meter_metrics_expose (GdkEventExpose
*ev
)
919 Glib::RefPtr
<Gdk::Window
> win (meter_metric_area
.get_window());
920 Glib::RefPtr
<Gdk::GC
> bg_gc (meter_metric_area
.get_style()->get_bg_gc (Gtk::STATE_INSENSITIVE
));
921 GdkRectangle base_rect
;
922 GdkRectangle draw_rect
;
925 win
->get_size (width
, height
);
927 base_rect
.width
= width
;
928 base_rect
.height
= height
;
932 Glib::RefPtr
<Gdk::Pixmap
> pixmap
;
933 std::map
<string
,Glib::RefPtr
<Gdk::Pixmap
> >::iterator i
= metric_pixmaps
.find (meter_metric_area
.get_name());
935 if (i
== metric_pixmaps
.end() || style_changed
|| dpi_changed
) {
936 pixmap
= render_metrics (meter_metric_area
);
941 gdk_rectangle_intersect (&ev
->area
, &base_rect
, &draw_rect
);
942 win
->draw_drawable (bg_gc
, pixmap
, draw_rect
.x
, draw_rect
.y
, draw_rect
.x
, draw_rect
.y
, draw_rect
.width
, draw_rect
.height
);
943 style_changed
= false;
947 boost::shared_ptr
<PBD::Controllable
>
948 GainMeterBase::get_controllable()
951 return _amp
->gain_control();
953 return boost::shared_ptr
<PBD::Controllable
>();