2 Copyright (C) 2013 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <sigc++/bind.h>
24 #include "ardour/session.h"
25 #include "ardour/route.h"
26 #include "ardour/route_group.h"
27 #include "ardour/meter.h"
29 #include "ardour/audio_track.h"
30 #include "ardour/midi_track.h"
32 #include <gtkmm2ext/gtk_ui.h>
33 #include <gtkmm2ext/utils.h>
35 #include "ardour_ui.h"
37 #include "gui_thread.h"
38 #include "ardour_window.h"
40 #include "meterbridge.h"
41 #include "meter_strip.h"
45 using namespace ARDOUR;
48 using namespace Gtkmm2ext;
51 PBD::Signal1<void,MeterStrip*> MeterStrip::CatchDeletion;
53 MeterStrip::MetricPatterns MeterStrip::metric_patterns;
54 MeterStrip::TickPatterns MeterStrip::ticks_patterns;
56 MeterStrip::MeterStrip (Meterbridge& mtr, Session* sess, boost::shared_ptr<ARDOUR::Route> rt)
60 , style_changed (false)
63 RouteUI::set_route (rt);
66 if (_route->shared_peak_meter()->input_streams().n_total() == 1) {
71 level_meter = new LevelMeter(sess);
72 level_meter->set_meter (_route->shared_peak_meter().get());
73 level_meter->clear_meters();
74 level_meter->setup_meters (350, meter_width, 6);
75 level_meter->pack_start (meter_metric_area, false, false);
77 Gtk::Alignment *meter_align = Gtk::manage (new Gtk::Alignment());
78 meter_align->set(0.5, 0.5, 0.0, 1.0);
79 meter_align->add(*level_meter);
81 meterbox.pack_start(meter_ticks1_area, true, false);
82 meterbox.pack_start(*meter_align, true, true);
83 meterbox.pack_start(meter_ticks2_area, true, false);
85 // add track-name label
87 // * fixed-height labels (or table layout)
88 // * print lables at angle (allow longer text)
89 label.set_text(_route->name().c_str());
90 label.set_name("MeterbridgeLabel");
92 label.set_ellipsize(Pango::ELLIPSIZE_MIDDLE);
93 label.set_max_width_chars(7);
94 label.set_width_chars(7);
95 label.set_alignment(0.5, 0.5);
96 #else //ellipsize & angle are incompatible :(
97 label.set_angle(90.0);
98 label.set_alignment(0.5, 0.0);
100 label.set_size_request(12, 36);
102 Gtk::HBox* btnbox = Gtk::manage (new Gtk::HBox());
103 btnbox->pack_start(*rec_enable_button, true, false);
104 btnbox->set_size_request(-1, 16);
106 pack_start (meterbox, true, true);
107 pack_start (*btnbox, false, false);
108 pack_start (label, false, false);
110 meter_ticks1_area.hide();
111 meter_ticks2_area.show();
112 meter_metric_area.show();
119 _route->shared_peak_meter()->ConfigurationChanged.connect (
120 route_connections, invalidator (*this), boost::bind (&MeterStrip::meter_configuration_changed, this, _1), gui_context()
122 meter_configuration_changed (_route->shared_peak_meter()->input_streams ());
124 set_size_request_to_display_given_text (meter_metric_area, "-8888", 1, 0);
125 meter_metric_area.signal_expose_event().connect (
126 sigc::mem_fun(*this, &MeterStrip::meter_metrics_expose));
128 meter_ticks1_area.set_size_request(4,-1);
129 meter_ticks2_area.set_size_request(4,-1);
130 meter_ticks1_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks1_expose));
131 meter_ticks2_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks2_expose));
133 _route->DropReferences.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::self_delete, this), gui_context());
134 _route->PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::strip_property_changed, this, _1), gui_context());
136 UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &MeterStrip::on_theme_changed));
139 MeterStrip::~MeterStrip ()
142 CatchDeletion (this);
146 MeterStrip::self_delete ()
152 MeterStrip::update_rec_display ()
154 RouteUI::update_rec_display ();
158 MeterStrip::state_id() const
160 return string_compose ("mtrs %1", _route->id().to_s());
164 MeterStrip::set_button_names()
166 rec_enable_button->set_text (_("R"));
170 MeterStrip::strip_property_changed (const PropertyChange& what_changed)
172 if (!what_changed.contains (ARDOUR::Properties::name)) {
175 ENSURE_GUI_THREAD (*this, &MeterStrip::strip_name_changed, what_changed)
176 label.set_text(_route->name());
180 MeterStrip::fast_update ()
182 const float mpeak = level_meter->update_meters();
183 // TODO peak indicator if mpeak > 0
187 MeterStrip::display_metrics (bool show)
190 meter_metric_area.show();
191 meter_ticks1_area.hide();
193 meter_metric_area.hide();
194 meter_ticks1_area.show();
199 MeterStrip::on_theme_changed()
201 style_changed = true;
205 MeterStrip::meter_configuration_changed (ChanCount c)
210 for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
211 if (c.get (*i) > 0) {
212 _types.push_back (*i);
217 // TODO draw Inactive routes or busses with different styles
218 if (boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
219 && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
221 meter_metric_area.set_name ("AudioBusMetrics");
222 meter_ticks1_area.set_name ("AudioBusMetrics");
223 meter_ticks2_area.set_name ("AudioBusMetrics");
225 else if (type == (1 << DataType::AUDIO)) {
226 meter_metric_area.set_name ("AudioTrackMetrics");
227 meter_ticks1_area.set_name ("AudioTrackMetrics");
228 meter_ticks2_area.set_name ("AudioTrackMetrics");
230 else if (type == (1 << DataType::MIDI)) {
231 meter_metric_area.set_name ("MidiTrackMetrics");
232 meter_ticks1_area.set_name ("MidiTrackMetrics");
233 meter_ticks2_area.set_name ("MidiTrackMetrics");
235 meter_metric_area.set_name ("AudioMidiTrackMetrics");
236 meter_ticks1_area.set_name ("AudioMidiTrackMetrics");
237 meter_ticks2_area.set_name ("AudioMidiTrackMetrics");
239 style_changed = true;
240 meter_metric_area.queue_draw ();
244 MeterStrip::on_size_request (Gtk::Requisition* r)
246 style_changed = true;
247 VBox::on_size_request(r);
251 MeterStrip::on_size_allocate (Gtk::Allocation& a)
253 style_changed = true;
254 VBox::on_size_allocate(a);
257 /* XXX code-copy from gain_meter.cc -- TODO consolidate
259 * slightly different:
260 * - ticks & label positions are swapped
261 * - more ticks for audio (longer meter by default)
262 * - right-aligned lables, unit-legend
263 * - height limitation of FastMeter::max_pattern_metric_size is included here
266 MeterStrip::render_metrics (Gtk::Widget& w, vector<DataType> types)
268 Glib::RefPtr<Gdk::Window> win (w.get_window());
271 win->get_size (width, height);
273 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
274 cairo_t* cr = cairo_create (surface);
275 Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
278 Pango::AttrList audio_font_attributes;
279 Pango::AttrList midi_font_attributes;
280 Pango::AttrList unit_font_attributes;
282 Pango::AttrFontDesc* font_attr;
283 Pango::FontDescription font;
285 font = Pango::FontDescription (""); // use defaults
286 //font = get_font_for_style("gain-fader");
287 //font = w.get_style()->get_font();
289 font.set_weight (Pango::WEIGHT_NORMAL);
290 font.set_size (10.0 * PANGO_SCALE);
291 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
292 audio_font_attributes.change (*font_attr);
295 font.set_weight (Pango::WEIGHT_ULTRALIGHT);
296 font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
297 font.set_size (7.5 * PANGO_SCALE);
298 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
299 midi_font_attributes.change (*font_attr);
302 font.set_size (7.0 * PANGO_SCALE);
303 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
304 unit_font_attributes.change (*font_attr);
307 cairo_move_to (cr, 0, 0);
308 cairo_rectangle (cr, 0, 0, width, height);
310 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
311 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
315 height = min(1024, height); // XXX see FastMeter::max_pattern_metric_size
317 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
321 if (types.size() > 1) {
322 /* we're overlaying more than 1 set of marks, so use different colours */
325 case DataType::AUDIO:
326 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
327 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
330 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
331 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
335 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
336 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
342 case DataType::AUDIO:
343 layout->set_attributes (audio_font_attributes);
344 points.push_back (-50);
345 points.push_back (-40);
346 points.push_back (-30);
347 points.push_back (-20);
348 points.push_back (-18);
349 points.push_back (-10);
350 points.push_back (-6);
351 points.push_back (-3);
352 points.push_back (0);
353 points.push_back (4);
357 layout->set_attributes (midi_font_attributes);
358 points.push_back (0);
359 if (types.size() == 1) {
360 points.push_back (32);
362 /* tweak so as not to overlay the -30dB mark */
363 points.push_back (48);
365 if (types.size() == 1) {
366 points.push_back (64); // very close to -18dB
367 points.push_back (96); // overlays with -6dB mark
369 points.push_back (72);
370 points.push_back (88);
372 points.push_back (127);
378 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
382 case DataType::AUDIO:
383 fraction = log_meter (*j);
384 snprintf (buf, sizeof (buf), "%+2d", *j);
387 fraction = *j / 127.0;
388 snprintf (buf, sizeof (buf), "%3d", *j);
392 gint const pos = height - (gint) floor (height * fraction);
394 cairo_set_line_width (cr, 1.0);
395 cairo_move_to (cr, width-3.5, pos);
396 cairo_line_to (cr, width, pos);
399 layout->set_text(buf);
401 /* we want logical extents, not ink extents here */
404 layout->get_pixel_size(tw, th);
406 int p = pos - (th / 2);
407 p = min (p, height - th);
410 cairo_move_to (cr, width-5-tw, p);
411 pango_cairo_show_layout (cr, layout->gobj());
415 if (types.size() == 1) {
417 layout->set_attributes (unit_font_attributes);
418 switch (types.at(0)) {
419 case DataType::AUDIO:
420 layout->set_text("dBFS");
421 layout->get_pixel_size(tw, th);
424 layout->set_text("vel");
425 layout->get_pixel_size(tw, th);
428 Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
429 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
430 cairo_move_to (cr, 1, height - th);
431 pango_cairo_show_layout (cr, layout->gobj());
434 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
435 MetricPatterns::iterator p;
437 if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
438 cairo_pattern_destroy (p->second);
441 metric_patterns[w.get_name()] = pattern;
444 cairo_surface_destroy (surface);
449 /* XXX code-copy from gain_meter.cc -- TODO consolidate */
451 MeterStrip::meter_metrics_expose (GdkEventExpose *ev)
453 Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
456 cr = gdk_cairo_create (win->gobj());
458 /* clip to expose area */
460 gdk_cairo_rectangle (cr, &ev->area);
463 cairo_pattern_t* pattern;
464 MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
466 if (i == metric_patterns.end() || style_changed) {
467 pattern = render_metrics (meter_metric_area, _types);
472 cairo_move_to (cr, 0, 0);
473 cairo_set_source (cr, pattern);
476 win->get_size (width, height);
478 cairo_rectangle (cr, 0, 0, width, height);
481 style_changed = false;
489 MeterStrip::render_ticks (Gtk::Widget& w, vector<DataType> types)
491 Glib::RefPtr<Gdk::Window> win (w.get_window());
494 win->get_size (width, height);
496 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
497 cairo_t* cr = cairo_create (surface);
499 cairo_move_to (cr, 0, 0);
500 cairo_rectangle (cr, 0, 0, width, height);
502 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
503 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
507 height = min(1024, height); // XXX see FastMeter::max_pattern_metric_size
509 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
513 if (types.size() > 1) {
514 /* we're overlaying more than 1 set of marks, so use different colours */
517 case DataType::AUDIO:
518 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
519 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
522 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
523 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
527 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
528 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
534 case DataType::AUDIO:
535 points.push_back (-50);
536 points.push_back (-40);
537 points.push_back (-30);
538 points.push_back (-20);
539 points.push_back (-18);
540 points.push_back (-10);
541 points.push_back (-6);
542 points.push_back (-3);
543 points.push_back (0);
544 points.push_back (4);
548 points.push_back (0);
549 points.push_back (32);
550 points.push_back (64);
551 points.push_back (96);
552 points.push_back (127);
556 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
560 case DataType::AUDIO:
561 fraction = log_meter (*j);
564 fraction = *j / 127.0;
568 gint const pos = height - (gint) floor (height * fraction);
569 cairo_set_line_width (cr, 1.0);
570 cairo_arc(cr, 1.5, pos, 1.0, 0, 2 * M_PI);
571 cairo_fill_preserve(cr);
576 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
577 TickPatterns::iterator p;
579 if ((p = ticks_patterns.find (w.get_name())) != metric_patterns.end()) {
580 cairo_pattern_destroy (p->second);
583 ticks_patterns[w.get_name()] = pattern;
586 cairo_surface_destroy (surface);
592 MeterStrip::meter_ticks1_expose (GdkEventExpose *ev)
594 return meter_ticks_expose(ev, &meter_ticks1_area);
598 MeterStrip::meter_ticks2_expose (GdkEventExpose *ev)
600 return meter_ticks_expose(ev, &meter_ticks2_area);
604 MeterStrip::meter_ticks_expose (GdkEventExpose *ev, Gtk::DrawingArea *mta)
606 Glib::RefPtr<Gdk::Window> win (mta->get_window());
609 cr = gdk_cairo_create (win->gobj());
611 /* clip to expose area */
613 gdk_cairo_rectangle (cr, &ev->area);
616 cairo_pattern_t* pattern;
617 TickPatterns::iterator i = ticks_patterns.find (mta->get_name());
619 if (i == ticks_patterns.end() || style_changed) {
620 pattern = render_ticks (*mta, _types);
625 cairo_move_to (cr, 0, 0);
626 cairo_set_source (cr, pattern);
629 win->get_size (width, height);
631 cairo_rectangle (cr, 0, 0, width, height);
634 style_changed = false;