gtk2_ardour/meter_strip.cc

   1 /*
   2     Copyright (C) 2013 Paul Davis
   3     Author: Robin Gareus
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20 #include <list>
  21
  22 #include <sigc++/bind.h>
  23
  24 #include "ardour/session.h"
  25 #include "ardour/route.h"
  26 #include "ardour/route_group.h"
  27 #include "ardour/meter.h"
  28
  29 #include "ardour/audio_track.h"
  30 #include "ardour/midi_track.h"
  31
  32 #include <gtkmm2ext/gtk_ui.h>
  33 #include <gtkmm2ext/keyboard.h>
  34 #include <gtkmm2ext/utils.h>
  35 #include <gtkmm2ext/rgb_macros.h>
  36
  37 #include "ardour_ui.h"
  38 #include "global_signals.h"
  39 #include "logmeter.h"
  40 #include "gui_thread.h"
  41 #include "ardour_window.h"
  42 #include "utils.h"
  43
  44 #include "meterbridge.h"
  45 #include "meter_strip.h"
  46
  47 #include "i18n.h"
  48
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtk;
  52 using namespace Gtkmm2ext;
  53 using namespace std;
  54
  55 PBD::Signal1<void,MeterStrip*> MeterStrip::CatchDeletion;
  56 PBD::Signal0<void> MeterStrip::ResetAllPeakDisplays;
  57 PBD::Signal1<void,RouteGroup*> MeterStrip::ResetGroupPeakDisplays;
  58 PBD::Signal0<void> MeterStrip::MetricChanged;
  59
  60
  61 MeterStrip::MetricPatterns MeterStrip::metric_patterns;
  62 MeterStrip::TickPatterns MeterStrip::ticks_patterns;
  63 int MeterStrip::max_pattern_metric_size = 1026; // +2 border
  64
  65 MeterStrip::MeterStrip (int metricmode)
  66         : AxisView(0)
  67         , RouteUI(0)
  68 {
  69         level_meter = 0;
  70         set_spacing(2);
  71         peakbx.set_size_request(-1, 14);
  72         btnbox.set_size_request(-1, 16);
  73         namebx.set_size_request(18, 52);
  74
  75         set_metric_mode(metricmode);
  76
  77         set_size_request_to_display_given_text (meter_metric_area, "-8888", 1, 0);
  78         meter_metric_area.signal_expose_event().connect (
  79                         sigc::mem_fun(*this, &MeterStrip::meter_metrics_expose));
  80
  81         meterbox.pack_start(meter_metric_area, true, false);
  82
  83         pack_start (peakbx, false, false);
  84         pack_start (meterbox, true, true);
  85         pack_start (btnbox, false, false);
  86         pack_start (namebx, false, false);
  87
  88         peakbx.show();
  89         btnbox.show();
  90         meter_metric_area.show();
  91         meterbox.show();
  92         namebx.show();
  93
  94         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &MeterStrip::on_theme_changed));
  95         ColorsChanged.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
  96         DPIReset.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
  97 }
  98
  99 MeterStrip::MeterStrip (Session* sess, boost::shared_ptr<ARDOUR::Route> rt)
 100         : AxisView(sess)
 101         , RouteUI(sess)
 102         , _route(rt)
 103         , peak_display()
 104 {
 105         set_spacing(2);
 106         RouteUI::set_route (rt);
 107
 108         _has_midi = false;
 109
 110         int meter_width = 6;
 111         if (_route->shared_peak_meter()->input_streams().n_total() == 1) {
 112                 meter_width = 12;
 113         }
 114
 115         // level meter + ticks
 116         level_meter = new LevelMeter(sess);
 117         level_meter->set_meter (_route->shared_peak_meter().get());
 118         level_meter->clear_meters();
 119         level_meter->setup_meters (220, meter_width, 6);
 120
 121         meter_align.set(0.5, 0.5, 0.0, 1.0);
 122         meter_align.add(*level_meter);
 123
 124         meterbox.pack_start(meter_ticks1_area, true, false);
 125         meterbox.pack_start(meter_align, true, true);
 126         meterbox.pack_start(meter_ticks2_area, true, false);
 127
 128         // peak display
 129         peak_display.set_name ("meterbridge peakindicator");
 130         peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
 131         max_peak = minus_infinity();
 132         peak_display.unset_flags (Gtk::CAN_FOCUS);
 133         peak_display.set_size_request(12, 8);
 134         peak_display.set_corner_radius(2);
 135
 136         peak_align.set(0.5, 1.0, 1.0, 0.8);
 137         peak_align.add(peak_display);
 138         peakbx.pack_start(peak_align, true, true, 3);
 139         peakbx.set_size_request(-1, 14);
 140
 141         // add track-name label
 142         name_label.set_text(_route->name().c_str());
 143         name_label.set_corner_radius(2);
 144         name_label.set_name("meterbridge label");
 145         name_label.set_angle(-90.0);
 146         name_label.layout()->set_ellipsize (Pango::ELLIPSIZE_END);
 147         name_label.layout()->set_width(48 * PANGO_SCALE);
 148         name_label.set_size_request(18, 50);
 149         name_label.set_alignment(-1.0, .5);
 150
 151         namebx.set_size_request(18, 52);
 152         namebx.pack_start(name_label, true, false, 3);
 153
 154         // rec-enable button
 155         btnbox.pack_start(*rec_enable_button, true, false);
 156         rec_enable_button->set_corner_radius(2);
 157         btnbox.set_size_request(-1, 16);
 158
 159         pack_start (peakbx, false, false);
 160         pack_start (meterbox, true, true);
 161         pack_start (btnbox, false, false);
 162         pack_start (namebx, false, false);
 163
 164         peak_display.show();
 165         peakbx.show();
 166         meter_ticks1_area.show();
 167         meter_ticks2_area.show();
 168         meterbox.show();
 169         level_meter->show();
 170         meter_align.show();
 171         peak_align.show();
 172         btnbox.show();
 173         name_label.show();
 174         namebx.show();
 175
 176         _route->shared_peak_meter()->ConfigurationChanged.connect (
 177                         route_connections, invalidator (*this), boost::bind (&MeterStrip::meter_configuration_changed, this, _1), gui_context()
 178                         );
 179         meter_configuration_changed (_route->shared_peak_meter()->input_streams ());
 180
 181         meter_ticks1_area.set_size_request(3,-1);
 182         meter_ticks2_area.set_size_request(3,-1);
 183         meter_ticks1_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks1_expose));
 184         meter_ticks2_area.signal_expose_event().connect (sigc::mem_fun(*this, &MeterStrip::meter_ticks2_expose));
 185
 186         _route->DropReferences.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::self_delete, this), gui_context());
 187         _route->PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&MeterStrip::strip_property_changed, this, _1), gui_context());
 188
 189         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &MeterStrip::peak_button_release), false);
 190
 191         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &MeterStrip::on_theme_changed));
 192         ColorsChanged.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
 193         DPIReset.connect (sigc::mem_fun (*this, &MeterStrip::on_theme_changed));
 194 }
 195
 196 MeterStrip::~MeterStrip ()
 197 {
 198         delete level_meter;
 199         CatchDeletion (this);
 200 }
 201
 202 void
 203 MeterStrip::self_delete ()
 204 {
 205         delete this;
 206 }
 207
 208 void
 209 MeterStrip::update_rec_display ()
 210 {
 211         RouteUI::update_rec_display ();
 212 }
 213
 214 std::string
 215 MeterStrip::state_id() const
 216 {
 217         return string_compose ("mtrs %1", _route->id().to_s());
 218 }
 219
 220 void
 221 MeterStrip::set_button_names()
 222 {
 223         rec_enable_button->set_text ("");
 224         rec_enable_button->set_image (::get_icon (X_("record_normal_red")));
 225 }
 226
 227 void
 228 MeterStrip::strip_property_changed (const PropertyChange& what_changed)
 229 {
 230         if (!what_changed.contains (ARDOUR::Properties::name)) {
 231                 return;
 232         }
 233         ENSURE_GUI_THREAD (*this, &MeterStrip::strip_name_changed, what_changed)
 234         name_label.set_text(_route->name());
 235 }
 236
 237 void
 238 MeterStrip::fast_update ()
 239 {
 240         float mpeak = level_meter->update_meters();
 241         if (mpeak > max_peak) {
 242                 max_peak = mpeak;
 243                 if (mpeak >= 0.0f) {
 244                         peak_display.set_name ("meterbridge peakindicator on");
 245                         peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
 246                 }
 247         }
 248 }
 249
 250 void
 251 MeterStrip::on_theme_changed()
 252 {
 253         metric_patterns.clear();
 254         ticks_patterns.clear();
 255
 256         if (level_meter && _route) {
 257                 int meter_width = 6;
 258                 if (_route->shared_peak_meter()->input_streams().n_total() == 1) {
 259                         meter_width = 12;
 260                 }
 261                 level_meter->setup_meters (220, meter_width, 6);
 262         }
 263         meter_metric_area.queue_draw();
 264         meter_ticks1_area.queue_draw();
 265         meter_ticks2_area.queue_draw();
 266 }
 267
 268 void
 269 MeterStrip::meter_configuration_changed (ChanCount c)
 270 {
 271         int type = 0;
 272         _types.clear ();
 273         bool old_has_midi = _has_midi;
 274
 275         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
 276                 if (c.get (*i) > 0) {
 277                         _types.push_back (*i);
 278                         type |= 1 << (*i);
 279                 }
 280         }
 281
 282         // TODO draw Inactive routes or busses with different styles
 283         if (boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
 284                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
 285                         ) {
 286                 meter_ticks1_area.set_name ("AudioBusMetrics");
 287                 meter_ticks2_area.set_name ("AudioBusMetrics");
 288                 _has_midi = false;
 289         }
 290         else if (type == (1 << DataType::AUDIO)) {
 291                 meter_ticks1_area.set_name ("AudioTrackMetrics");
 292                 meter_ticks2_area.set_name ("AudioTrackMetrics");
 293                 _has_midi = false;
 294         }
 295         else if (type == (1 << DataType::MIDI)) {
 296                 meter_ticks1_area.set_name ("MidiTrackMetrics");
 297                 meter_ticks2_area.set_name ("MidiTrackMetrics");
 298                 _has_midi = true;
 299         } else {
 300                 meter_ticks1_area.set_name ("AudioMidiTrackMetrics");
 301                 meter_ticks2_area.set_name ("AudioMidiTrackMetrics");
 302                 _has_midi = true;
 303         }
 304
 305         if (old_has_midi != _has_midi) MetricChanged();
 306         on_theme_changed();
 307 }
 308
 309 void
 310 MeterStrip::on_size_request (Gtk::Requisition* r)
 311 {
 312         metric_patterns.clear();
 313         ticks_patterns.clear();
 314         VBox::on_size_request(r);
 315 }
 316
 317 void
 318 MeterStrip::on_size_allocate (Gtk::Allocation& a)
 319 {
 320         metric_patterns.clear();
 321         ticks_patterns.clear();
 322         const int wh = a.get_height();
 323         int nh = ceilf(wh * .11f);
 324         if (nh < 52) nh = 52;
 325         if (nh > 148) nh = 148;
 326         namebx.set_size_request(18, nh);
 327         if (_route) {
 328                 name_label.set_size_request(18, nh-2);
 329                 name_label.layout()->set_width((nh-4) * PANGO_SCALE);
 330         }
 331         VBox::on_size_allocate(a);
 332 }
 333
 334 cairo_pattern_t*
 335 MeterStrip::render_metrics (Gtk::Widget& w, vector<DataType> types)
 336 {
 337         Glib::RefPtr<Gdk::Window> win (w.get_window());
 338
 339         bool tickleft = true;
 340         gint width, height;
 341         win->get_size (width, height);
 342
 343         tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
 344
 345         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 346         cairo_t* cr = cairo_create (surface);
 347         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
 348
 349         Pango::AttrList audio_font_attributes;
 350         Pango::AttrList midi_font_attributes;
 351         Pango::AttrList unit_font_attributes;
 352
 353         Pango::AttrFontDesc* font_attr;
 354         Pango::FontDescription font;
 355
 356         font = Pango::FontDescription (""); // use defaults
 357         //font = get_font_for_style("gain-fader");
 358         //font = w.get_style()->get_font();
 359
 360         font.set_weight (Pango::WEIGHT_NORMAL);
 361         font.set_size (9.0 * PANGO_SCALE);
 362         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 363         audio_font_attributes.change (*font_attr);
 364         delete font_attr;
 365
 366         font.set_weight (Pango::WEIGHT_ULTRALIGHT);
 367         font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
 368         font.set_size (7.5 * PANGO_SCALE);
 369         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 370         midi_font_attributes.change (*font_attr);
 371         delete font_attr;
 372
 373         font.set_size (7.0 * PANGO_SCALE);
 374         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 375         unit_font_attributes.change (*font_attr);
 376         delete font_attr;
 377
 378         cairo_move_to (cr, 0, 0);
 379         cairo_rectangle (cr, 0, 0, width, height);
 380         {
 381                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_ACTIVE);
 382                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 383         }
 384         cairo_fill (cr);
 385
 386         height = min(max_pattern_metric_size, height);
 387         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 388
 389         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 390
 391                 Gdk::Color c;
 392
 393                 if (types.size() > 1) {
 394                         /* we're overlaying more than 1 set of marks, so use different colours */
 395                         Gdk::Color c;
 396                         switch (*i) {
 397                         case DataType::AUDIO:
 398                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 399                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 400                                 break;
 401                         case DataType::MIDI:
 402                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 403                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 404                                 break;
 405                         }
 406                 } else {
 407                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 408                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 409                 }
 410
 411                 std::map<int,float> points;
 412
 413                 switch (*i) {
 414                 case DataType::AUDIO:
 415                         layout->set_attributes (audio_font_attributes);
 416                         points.insert (std::pair<int,float>(-50, 0.5));
 417                         points.insert (std::pair<int,float>(-40, 0.5));
 418                         points.insert (std::pair<int,float>(-30, 0.5));
 419                         points.insert (std::pair<int,float>(-25, 0.5));
 420                         points.insert (std::pair<int,float>(-20, 1.0));
 421                         points.insert (std::pair<int,float>(-18, 1.0));
 422                         points.insert (std::pair<int,float>(-15, 1.0));
 423                         points.insert (std::pair<int,float>(-10, 1.0));
 424                         points.insert (std::pair<int,float>( -5, 1.0));
 425                         points.insert (std::pair<int,float>( -3, 0.5));
 426                         points.insert (std::pair<int,float>(  0, 1.0));
 427                         points.insert (std::pair<int,float>(  3, 0.5));
 428                         break;
 429
 430                 case DataType::MIDI:
 431                         layout->set_attributes (midi_font_attributes);
 432                         points.insert (std::pair<int,float>(  0, 1.0));
 433                         if (types.size() == 1) {
 434                                 points.insert (std::pair<int,float>( 16, 0.5));
 435                                 points.insert (std::pair<int,float>( 32, 0.5));
 436                                 points.insert (std::pair<int,float>( 48, 0.5));
 437                                 points.insert (std::pair<int,float>( 64, 1.0));
 438                                 points.insert (std::pair<int,float>( 80, 0.5));
 439                                 points.insert (std::pair<int,float>( 96, 0.5));
 440                                 points.insert (std::pair<int,float>(100, 0.5));
 441                                 points.insert (std::pair<int,float>(112, 0.5));
 442                         } else {
 443                                 /* labels that don't overlay with dB */
 444                                 points.insert (std::pair<int,float>( 48, 0.5));
 445                                 points.insert (std::pair<int,float>( 72, 0.5));
 446                                 points.insert (std::pair<int,float>( 88, 0.5));
 447                         }
 448                         points.insert (std::pair<int,float>(127, 1.0));
 449                         break;
 450                 }
 451
 452                 char buf[32];
 453                 gint pos;
 454
 455                 for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
 456
 457                         float fraction = 0;
 458                         switch (*i) {
 459                         case DataType::AUDIO:
 460                                 cairo_set_line_width (cr, (j->second));
 461                                 if (j->first >= 0) {
 462                                         cairo_set_source_rgb (cr,
 463                                                         UINT_RGBA_R_FLT(peakcolor),
 464                                                         UINT_RGBA_G_FLT(peakcolor),
 465                                                         UINT_RGBA_B_FLT(peakcolor));
 466                                 }
 467                                 fraction = log_meter (j->first);
 468                                 snprintf (buf, sizeof (buf), "%+2d", j->first);
 469                                 pos = height - (gint) floor (height * fraction);
 470                                 if (tickleft) {
 471                                         cairo_move_to(cr, width-2.5, pos + .5);
 472                                         cairo_line_to(cr, width, pos + .5);
 473                                 } else {
 474                                         cairo_move_to(cr, 0, pos + .5);
 475                                         cairo_line_to(cr, 2.5, pos + .5);
 476                                 }
 477                                 cairo_stroke (cr);
 478                                 break;
 479                         case DataType::MIDI:
 480                                 cairo_set_line_width (cr, 1.0);
 481                                 fraction = (j->first) / 127.0;
 482                                 snprintf (buf, sizeof (buf), "%3d", j->first);
 483                                 pos = 1 + height - (gint) rintf (height * fraction);
 484                                 pos = min (pos, height);
 485                                 if (tickleft) {
 486                                         cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
 487                                 } else {
 488                                         cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
 489                                 }
 490                                 cairo_fill(cr);
 491                                 break;
 492                         }
 493
 494                         layout->set_text(buf);
 495
 496                         /* we want logical extents, not ink extents here */
 497
 498                         int tw, th;
 499                         layout->get_pixel_size(tw, th);
 500
 501                         int p = pos - (th / 2);
 502                         p = min (p, height - th);
 503                         p = max (p, 0);
 504
 505                         cairo_move_to (cr, width-4-tw, p);
 506                         pango_cairo_show_layout (cr, layout->gobj());
 507                 }
 508         }
 509
 510         if (types.size() == 1) {
 511                 int tw, th;
 512                 layout->set_attributes (unit_font_attributes);
 513                 switch (types.at(0)) {
 514                         case DataType::AUDIO:
 515                                 layout->set_text("dBFS");
 516                                 layout->get_pixel_size(tw, th);
 517                                 break;
 518                         case DataType::MIDI:
 519                                 layout->set_text("vel");
 520                                 layout->get_pixel_size(tw, th);
 521                                 break;
 522                 }
 523                 Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 524                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 525                 cairo_move_to (cr, 1, height - th - 1.5);
 526                 pango_cairo_show_layout (cr, layout->gobj());
 527         }
 528
 529         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 530         MetricPatterns::iterator p;
 531
 532         if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
 533                 cairo_pattern_destroy (p->second);
 534         }
 535
 536         metric_patterns[w.get_name()] = pattern;
 537
 538         cairo_destroy (cr);
 539         cairo_surface_destroy (surface);
 540
 541         return pattern;
 542 }
 543
 544 gint
 545 MeterStrip::meter_metrics_expose (GdkEventExpose *ev)
 546 {
 547         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 548         cairo_t* cr;
 549
 550         cr = gdk_cairo_create (win->gobj());
 551
 552         /* clip to expose area */
 553
 554         gdk_cairo_rectangle (cr, &ev->area);
 555         cairo_clip (cr);
 556
 557         cairo_pattern_t* pattern;
 558         MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
 559
 560         if (i == metric_patterns.end()) {
 561                 pattern = render_metrics (meter_metric_area, _types);
 562         } else {
 563                 pattern = i->second;
 564         }
 565
 566         cairo_move_to (cr, 0, 0);
 567         cairo_set_source (cr, pattern);
 568
 569         gint width, height;
 570         win->get_size (width, height);
 571
 572         cairo_rectangle (cr, 0, 0, width, height);
 573         cairo_fill (cr);
 574
 575         cairo_destroy (cr);
 576
 577         return true;
 578 }
 579
 580 void
 581 MeterStrip::set_metric_mode (int metricmode)
 582 {
 583         _types.clear ();
 584         switch(metricmode) {
 585                 case 1:
 586                         meter_metric_area.set_name ("AudioBusMetrics");
 587                         _types.push_back (DataType::AUDIO);
 588                         break;
 589                 case 2:
 590                         meter_metric_area.set_name ("AudioTrackMetricsLeft");
 591                         _types.push_back (DataType::AUDIO);
 592                         break;
 593                 case 3:
 594                         meter_metric_area.set_name ("MidiTrackMetrics");
 595                         _types.push_back (DataType::MIDI);
 596                         break;
 597                 case 4:
 598                         meter_metric_area.set_name ("AudioTrackMetrics");
 599                         _types.push_back (DataType::AUDIO);
 600                         break;
 601                 default:
 602                         meter_metric_area.set_name ("AudioMidiTrackMetrics");
 603                         _types.push_back (DataType::AUDIO);
 604                         _types.push_back (DataType::MIDI);
 605                         break;
 606         }
 607
 608         meter_metric_area.queue_draw ();
 609 }
 610
 611 cairo_pattern_t*
 612 MeterStrip::render_ticks (Gtk::Widget& w, vector<DataType> types)
 613 {
 614         Glib::RefPtr<Gdk::Window> win (w.get_window());
 615
 616         gint width, height;
 617         win->get_size (width, height);
 618
 619         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 620         cairo_t* cr = cairo_create (surface);
 621
 622         cairo_move_to (cr, 0, 0);
 623         cairo_rectangle (cr, 0, 0, width, height);
 624         {
 625                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_ACTIVE);
 626                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 627         }
 628         cairo_fill (cr);
 629
 630         height = min(max_pattern_metric_size, height);
 631         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 632
 633         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 634
 635                 Gdk::Color c;
 636                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 637
 638                 if (types.size() > 1) {
 639                         /* we're overlaying more than 1 set of marks, so use different colours */
 640                         switch (*i) {
 641                         case DataType::AUDIO:
 642                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 643                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 644                                 break;
 645                         case DataType::MIDI:
 646                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 647                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 648                                 break;
 649                         }
 650                 } else {
 651                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 652                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 653                 }
 654
 655                 std::map<int,float> points;
 656
 657                 switch (*i) {
 658                 case DataType::AUDIO:
 659                         points.insert (std::pair<int,float>(-60, 0.5));
 660                         points.insert (std::pair<int,float>(-50, 0.5));
 661                         points.insert (std::pair<int,float>(-40, 0.5));
 662                         points.insert (std::pair<int,float>(-30, 0.5));
 663                         points.insert (std::pair<int,float>(-25, 0.5));
 664                         points.insert (std::pair<int,float>(-20, 1.0));
 665
 666                         points.insert (std::pair<int,float>(-19, 0.5));
 667                         points.insert (std::pair<int,float>(-18, 1.0));
 668                         points.insert (std::pair<int,float>(-17, 0.5));
 669                         points.insert (std::pair<int,float>(-16, 0.5));
 670                         points.insert (std::pair<int,float>(-15, 1.0));
 671
 672                         points.insert (std::pair<int,float>(-14, 0.5));
 673                         points.insert (std::pair<int,float>(-13, 0.5));
 674                         points.insert (std::pair<int,float>(-12, 0.5));
 675                         points.insert (std::pair<int,float>(-11, 0.5));
 676                         points.insert (std::pair<int,float>(-10, 1.0));
 677
 678                         points.insert (std::pair<int,float>( -9, 0.5));
 679                         points.insert (std::pair<int,float>( -8, 0.5));
 680                         points.insert (std::pair<int,float>( -7, 0.5));
 681                         points.insert (std::pair<int,float>( -6, 0.5));
 682                         points.insert (std::pair<int,float>( -5, 1.0));
 683                         points.insert (std::pair<int,float>( -4, 0.5));
 684                         points.insert (std::pair<int,float>( -3, 0.5));
 685                         points.insert (std::pair<int,float>( -2, 0.5));
 686                         points.insert (std::pair<int,float>( -1, 0.5));
 687
 688                         points.insert (std::pair<int,float>(  0, 1.0));
 689                         points.insert (std::pair<int,float>(  1, 0.5));
 690                         points.insert (std::pair<int,float>(  2, 0.5));
 691                         points.insert (std::pair<int,float>(  3, 0.5));
 692                         points.insert (std::pair<int,float>(  4, 0.5));
 693                         points.insert (std::pair<int,float>(  5, 0.5));
 694                         break;
 695
 696                 case DataType::MIDI:
 697                         points.insert (std::pair<int,float>(  0, 1.0));
 698                         points.insert (std::pair<int,float>( 16, 0.5));
 699                         points.insert (std::pair<int,float>( 32, 0.5));
 700                         points.insert (std::pair<int,float>( 48, 0.5));
 701                         points.insert (std::pair<int,float>( 64, 1.0));
 702                         points.insert (std::pair<int,float>( 80, 0.5));
 703                         points.insert (std::pair<int,float>( 96, 0.5));
 704                         points.insert (std::pair<int,float>(100, 1.0));
 705                         points.insert (std::pair<int,float>(112, 0.5));
 706                         points.insert (std::pair<int,float>(127, 1.0));
 707                         break;
 708                 }
 709
 710                 for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
 711                         cairo_set_line_width (cr, (j->second));
 712
 713                         float fraction = 0;
 714                         gint pos;
 715
 716                         switch (*i) {
 717                         case DataType::AUDIO:
 718                                 if (j->first >= 0 || j->first == -9) {
 719                                         cairo_set_source_rgb (cr,
 720                                                         UINT_RGBA_R_FLT(peakcolor),
 721                                                         UINT_RGBA_G_FLT(peakcolor),
 722                                                         UINT_RGBA_B_FLT(peakcolor));
 723                                 } else {
 724                                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 725                                 }
 726                                 fraction = log_meter (j->first);
 727                                 pos = height - (gint) floor (height * fraction);
 728                                 cairo_move_to(cr, 0, pos + .5);
 729                                 cairo_line_to(cr, 3, pos + .5);
 730                                 cairo_stroke (cr);
 731                                 break;
 732                         case DataType::MIDI:
 733                                 fraction = (j->first) / 127.0;
 734                                 pos = 1 + height - (gint) floor (height * fraction);
 735                                 pos = min (pos, height);
 736                                 cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
 737                                 cairo_fill(cr);
 738                                 break;
 739                         }
 740                 }
 741         }
 742
 743         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 744         TickPatterns::iterator p;
 745
 746         if ((p = ticks_patterns.find (w.get_name())) != metric_patterns.end()) {
 747                 cairo_pattern_destroy (p->second);
 748         }
 749
 750         ticks_patterns[w.get_name()] = pattern;
 751
 752         cairo_destroy (cr);
 753         cairo_surface_destroy (surface);
 754
 755         return pattern;
 756 }
 757
 758 gint
 759 MeterStrip::meter_ticks1_expose (GdkEventExpose *ev)
 760 {
 761         return meter_ticks_expose(ev, &meter_ticks1_area);
 762 }
 763
 764 gint
 765 MeterStrip::meter_ticks2_expose (GdkEventExpose *ev)
 766 {
 767         return meter_ticks_expose(ev, &meter_ticks2_area);
 768 }
 769
 770 gint
 771 MeterStrip::meter_ticks_expose (GdkEventExpose *ev, Gtk::DrawingArea *mta)
 772 {
 773         Glib::RefPtr<Gdk::Window> win (mta->get_window());
 774         cairo_t* cr;
 775
 776         cr = gdk_cairo_create (win->gobj());
 777
 778         /* clip to expose area */
 779
 780         gdk_cairo_rectangle (cr, &ev->area);
 781         cairo_clip (cr);
 782
 783         cairo_pattern_t* pattern;
 784         TickPatterns::iterator i = ticks_patterns.find (mta->get_name());
 785
 786         if (i == ticks_patterns.end()) {
 787                 pattern = render_ticks (*mta, _types);
 788         } else {
 789                 pattern = i->second;
 790         }
 791
 792         cairo_move_to (cr, 0, 0);
 793         cairo_set_source (cr, pattern);
 794
 795         gint width, height;
 796         win->get_size (width, height);
 797
 798         cairo_rectangle (cr, 0, 0, width, height);
 799         cairo_fill (cr);
 800
 801         cairo_destroy (cr);
 802
 803         return true;
 804 }
 805
 806 void
 807 MeterStrip::reset_group_peak_display (RouteGroup* group)
 808 {
 809         /* UNUSED -- need connection w/mixer || other meters */
 810         if (_route && group == _route->route_group()) {
 811                 reset_peak_display ();
 812         }
 813 }
 814
 815 void
 816 MeterStrip::reset_peak_display ()
 817 {
 818         _route->shared_peak_meter()->reset_max();
 819         level_meter->clear_meters();
 820         max_peak = -INFINITY;
 821         peak_display.set_name ("meterbridge peakindicator");
 822         peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
 823 }
 824
 825 bool
 826 MeterStrip::peak_button_release (GdkEventButton* ev)
 827 {
 828         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 829                 ResetAllPeakDisplays ();
 830         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 831                 if (_route) {
 832                         ResetGroupPeakDisplays (_route->route_group());
 833                 }
 834         } else {
 835                 reset_peak_display ();
 836         }
 837         return true;
 838 }