gtk2_ardour/meter_patterns.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 <gtkmm2ext/cairo_widget.h>
  21 #include <gtkmm2ext/gtk_ui.h>
  22 #include <gtkmm2ext/utils.h>
  23 #include <gtkmm2ext/rgb_macros.h>
  24
  25 #include <ardour/rc_configuration.h>
  26 #include "ardour_ui.h"
  27 #include "utils.h"
  28 #include "logmeter.h"
  29 #include "meter_patterns.h"
  30
  31 #include "i18n.h"
  32
  33 using namespace ARDOUR;
  34 using namespace PBD;
  35 using namespace Gtk;
  36 using namespace Gtkmm2ext;
  37 using namespace std;
  38 using namespace ArdourMeter;
  39
  40 static const int max_pattern_metric_size = 1026;
  41
  42 /* signals used by meters */
  43
  44 sigc::signal<void> ArdourMeter::ResetAllPeakDisplays;
  45 sigc::signal<void,ARDOUR::Route*> ArdourMeter::ResetRoutePeakDisplays;
  46 sigc::signal<void,ARDOUR::RouteGroup*> ArdourMeter::ResetGroupPeakDisplays;
  47 sigc::signal<void> ArdourMeter::RedrawMetrics;
  48
  49 sigc::signal<void, int, ARDOUR::RouteGroup*, ARDOUR::MeterType> ArdourMeter::SetMeterTypeMulti;
  50
  51
  52 /* pattern cache */
  53
  54 struct MeterMatricsMapKey {
  55         MeterMatricsMapKey (std::string n, MeterType t)
  56                 : _n(n)
  57                 , _t(t)
  58         {}
  59         inline bool operator<(const MeterMatricsMapKey& rhs) const {
  60                 return (_n < rhs._n) || (_n == rhs._n && _t < rhs._t);
  61         }
  62         std::string _n;
  63         MeterType _t;
  64 };
  65
  66 namespace ArdourMeter {
  67         typedef std::map<MeterMatricsMapKey, cairo_pattern_t*> MetricPatternMap;
  68 }
  69
  70 static ArdourMeter::MetricPatternMap ticks_patterns;
  71 static ArdourMeter::MetricPatternMap metric_patterns;
  72
  73
  74 const std::string
  75 ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
  76 {
  77         switch (mt) {
  78                 case MeterPeak:
  79                         return _("Peak");
  80                         break;
  81                 case MeterKrms:
  82                         return _("RMS + Peak");
  83                         break;
  84                 case MeterIEC1DIN:
  85                         return _("IEC1/DIN");
  86                         break;
  87                 case MeterIEC1NOR:
  88                         return _("IEC1/Nordic");
  89                         break;
  90                 case MeterIEC2BBC:
  91                         return _("IEC2/BBC");
  92                         break;
  93                 case MeterIEC2EBU:
  94                         return _("IEC2/EBU");
  95                         break;
  96                 case MeterK20:
  97                         return _("K20");
  98                         break;
  99                 case MeterK14:
 100                         return _("K14");
 101                         break;
 102                 case MeterVU:
 103                         return _("VU");
 104                         break;
 105                 default:
 106                         return _("???");
 107                         break;
 108         }
 109 }
 110
 111 static inline float mtr_col_and_fract(
 112                 cairo_t* cr, Gdk::Color const * const c, const uint32_t peakcolor, const MeterType mt, const float val)
 113 {
 114         float fraction = 0;
 115
 116         switch (mt) {
 117                 default:
 118                 case MeterKrms:
 119                 case MeterPeak:
 120                         fraction = log_meter (val);
 121                         if (val >= 0 || val == -9) {
 122                                 cairo_set_source_rgb (cr,
 123                                                 UINT_RGBA_R_FLT(peakcolor),
 124                                                 UINT_RGBA_G_FLT(peakcolor),
 125                                                 UINT_RGBA_B_FLT(peakcolor));
 126                         } else {
 127                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 128                         }
 129                         break;
 130                 case MeterIEC2BBC:
 131                 case MeterIEC2EBU:
 132                         fraction = meter_deflect_ppm(val);
 133                         if (val >= -10.0) {
 134                                 cairo_set_source_rgb (cr,
 135                                                 UINT_RGBA_R_FLT(peakcolor),
 136                                                 UINT_RGBA_G_FLT(peakcolor),
 137                                                 UINT_RGBA_B_FLT(peakcolor));
 138                         } else {
 139                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 140                         }
 141                         break;
 142                 case MeterIEC1NOR:
 143                         fraction = meter_deflect_nordic(val);
 144                         if (val >= -12.0) {
 145                                 cairo_set_source_rgb (cr,
 146                                                 UINT_RGBA_R_FLT(peakcolor),
 147                                                 UINT_RGBA_G_FLT(peakcolor),
 148                                                 UINT_RGBA_B_FLT(peakcolor));
 149                         } else {
 150                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 151                         }
 152                         break;
 153                 case MeterIEC1DIN:
 154                         fraction = meter_deflect_din(val);
 155                         if (val >= -9.0) {
 156                                 cairo_set_source_rgb (cr,
 157                                                 UINT_RGBA_R_FLT(peakcolor),
 158                                                 UINT_RGBA_G_FLT(peakcolor),
 159                                                 UINT_RGBA_B_FLT(peakcolor));
 160                         } else {
 161                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 162                         }
 163                         break;
 164                 case MeterVU:
 165                         fraction = meter_deflect_vu(val);
 166                         if (val >= -20.0) {
 167                                 cairo_set_source_rgb (cr,
 168                                                 UINT_RGBA_R_FLT(peakcolor),
 169                                                 UINT_RGBA_G_FLT(peakcolor),
 170                                                 UINT_RGBA_B_FLT(peakcolor));
 171                         } else {
 172                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 173                         }
 174                         break;
 175                 case MeterK20:
 176                         fraction = meter_deflect_k (val, 20);
 177                         if (val >= -16.0) {
 178                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 179                         } else if (val >= -20.0) {
 180                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 181                         } else {
 182                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 183                         }
 184                         break;
 185                 case MeterK14:
 186                         if (val >= -10.0) {
 187                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 188                         } else if (val >= -14.0) {
 189                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 190                         } else {
 191                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 192                         }
 193                         fraction = meter_deflect_k (val, 14);
 194                         break;
 195         }
 196         return fraction;
 197 }
 198
 199
 200 static cairo_pattern_t*
 201 meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> types)
 202 {
 203         Glib::RefPtr<Gdk::Window> win (w.get_window());
 204
 205         bool background;
 206         gint width, height;
 207         win->get_size (width, height);
 208         background = types.size() == 0
 209                 || w.get_name().substr(w.get_name().length() - 4) == "Left"
 210                 || w.get_name().substr(w.get_name().length() - 5) == "Right";
 211
 212         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 213         cairo_t* cr = cairo_create (surface);
 214
 215         cairo_move_to (cr, 0, 0);
 216         cairo_rectangle (cr, 0, 0, width, height);
 217         {
 218                 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
 219                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 220         }
 221         cairo_fill (cr);
 222
 223         height = min(max_pattern_metric_size, height);
 224         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 225
 226         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 227
 228                 Gdk::Color c;
 229                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 230
 231                 if (types.size() > 1) {
 232                         /* we're overlaying more than 1 set of marks, so use different colours */
 233                         switch (*i) {
 234                         case DataType::AUDIO:
 235                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 236                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 237                                 break;
 238                         case DataType::MIDI:
 239                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 240                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 241                                 break;
 242                         }
 243                 } else {
 244                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 245                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 246                 }
 247
 248                 // tick-maker position in dBFS, line-thickness
 249                 std::map<float,float> points;
 250
 251                 switch (*i) {
 252                 case DataType::AUDIO:
 253
 254                         switch (type) {
 255                                 case MeterK14:
 256                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 257                                         points.insert (std::pair<float,float>(-44.0f, 1.0));
 258                                         points.insert (std::pair<float,float>(-34.0f, 1.0));
 259                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 260                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 261                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 262                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 263                                         points.insert (std::pair<float,float>(-11.0f, 1.0));
 264                                         points.insert (std::pair<float,float>( -8.0f, 1.0));
 265                                         points.insert (std::pair<float,float>( -4.0f, 1.0));
 266                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 267                                         break;
 268                                 case MeterK20:
 269                                         points.insert (std::pair<float,float>(-60.0f, 1.0));
 270                                         points.insert (std::pair<float,float>(-50.0f, 1.0));
 271                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 272                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 273                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 274                                         points.insert (std::pair<float,float>(-23.0f, 1.0));
 275                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 276                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 277                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 278                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 279                                         points.insert (std::pair<float,float>( -5.0f, 1.0));
 280                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 281                                         break;
 282                                 case MeterIEC2EBU:
 283                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 284                                         points.insert (std::pair<float,float>(-28.0f, 0.5));
 285                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 286                                         points.insert (std::pair<float,float>(-24.0f, 0.5));
 287                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 288                                         points.insert (std::pair<float,float>(-20.0f, 0.5));
 289                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 290                                         points.insert (std::pair<float,float>(-16.0f, 0.5));
 291                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 292                                         points.insert (std::pair<float,float>(-12.0f, 0.5));
 293                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 294                                         points.insert (std::pair<float,float>( -9.0f, 0.5));
 295                                         points.insert (std::pair<float,float>( -8.0f, 0.5));
 296                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 297                                         break;
 298                                 case MeterIEC2BBC:
 299                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 300                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 301                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 302                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 303                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 304                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 305                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 306                                         break;
 307                                 case MeterIEC1NOR:
 308                                         points.insert (std::pair<float,float>(-60.0f, 1.0)); // -42
 309                                         points.insert (std::pair<float,float>(-57.0f, 0.5));
 310                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 311                                         points.insert (std::pair<float,float>(-51.0f, 0.5));
 312                                         points.insert (std::pair<float,float>(-48.0f, 1.0));
 313                                         points.insert (std::pair<float,float>(-45.0f, 0.5));
 314                                         points.insert (std::pair<float,float>(-42.0f, 1.0));
 315                                         points.insert (std::pair<float,float>(-39.0f, 0.5));
 316                                         points.insert (std::pair<float,float>(-36.0f, 1.0));
 317
 318                                         points.insert (std::pair<float,float>(-33.0f, 1.0));
 319                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 320                                         points.insert (std::pair<float,float>(-27.0f, 1.0));
 321                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 322                                         points.insert (std::pair<float,float>(-21.0f, 1.0));
 323
 324                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 325                                         points.insert (std::pair<float,float>(-15.0f, 1.0));
 326                                         points.insert (std::pair<float,float>(-12.0f, 1.0));
 327                                         points.insert (std::pair<float,float>( -9.0f, 1.0));
 328                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 329                                         break;
 330                                 case MeterIEC1DIN:
 331                                         points.insert (std::pair<float,float>( -3.0f, 0.5)); // "200%"
 332                                         points.insert (std::pair<float,float>( -4.0f, 1.0)); // "100%"
 333                                         points.insert (std::pair<float,float>( -9.0f, 1.0));
 334                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 335                                         points.insert (std::pair<float,float>(-15.0f, 0.5)); // "50%"
 336                                         points.insert (std::pair<float,float>(-18.0f, 0.5)); // "-9"
 337                                         points.insert (std::pair<float,float>(-19.0f, 1.0)); // "30%"
 338                                         points.insert (std::pair<float,float>(-29.0f, 1.0)); // "10%"
 339                                         points.insert (std::pair<float,float>(-35.0f, 0.5)); // "5%" " -20"
 340                                         points.insert (std::pair<float,float>(-39.0f, 1.0)); // "3%"
 341                                         points.insert (std::pair<float,float>(-49.0f, 0.5)); // "1%"
 342                                         points.insert (std::pair<float,float>(-59.0f, 1.0));
 343                                         break;
 344                                 case MeterVU:
 345                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 346                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 347                                         points.insert (std::pair<float,float>(-19.0f, 1.0));
 348                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 349                                         points.insert (std::pair<float,float>(-21.0f, 1.0));
 350                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 351                                         points.insert (std::pair<float,float>(-23.0f, 1.0));
 352                                         points.insert (std::pair<float,float>(-25.0f, 1.0));
 353                                         points.insert (std::pair<float,float>(-27.0f, 1.0));
 354                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 355                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 356                                         break;
 357
 358                                 default:
 359                                         points.insert (std::pair<float,float>(-60, 0.5));
 360                                         points.insert (std::pair<float,float>(-50, 1.0));
 361                                         points.insert (std::pair<float,float>(-40, 1.0));
 362                                         points.insert (std::pair<float,float>(-30, 1.0));
 363                                         if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 364                                                 points.insert (std::pair<float,float>(-24, 1.0));
 365                                         } else {
 366                                                 points.insert (std::pair<float,float>(-25, 1.0));
 367                                         }
 368                                         points.insert (std::pair<float,float>(-20, 1.0));
 369
 370                                         points.insert (std::pair<float,float>(-19, 0.5));
 371                                         points.insert (std::pair<float,float>(-18, 1.0));
 372                                         points.insert (std::pair<float,float>(-17, 0.5));
 373                                         points.insert (std::pair<float,float>(-16, 0.5));
 374                                         points.insert (std::pair<float,float>(-15, 1.0));
 375
 376                                         points.insert (std::pair<float,float>(-14, 0.5));
 377                                         points.insert (std::pair<float,float>(-13, 0.5));
 378                                         points.insert (std::pair<float,float>(-12, 0.5));
 379                                         points.insert (std::pair<float,float>(-11, 0.5));
 380                                         points.insert (std::pair<float,float>(-10, 1.0));
 381
 382                                         points.insert (std::pair<float,float>( -9, 1.0));
 383                                         points.insert (std::pair<float,float>( -8, 0.5));
 384                                         points.insert (std::pair<float,float>( -7, 0.5));
 385                                         points.insert (std::pair<float,float>( -6, 0.5));
 386                                         points.insert (std::pair<float,float>( -5, 1.0));
 387                                         points.insert (std::pair<float,float>( -4, 0.5));
 388                                         points.insert (std::pair<float,float>( -3, 1.0));
 389                                         points.insert (std::pair<float,float>( -2, 0.5));
 390                                         points.insert (std::pair<float,float>( -1, 0.5));
 391
 392                                         points.insert (std::pair<float,float>(  0, 1.0));
 393                                         points.insert (std::pair<float,float>(  1, 0.5));
 394                                         points.insert (std::pair<float,float>(  2, 0.5));
 395                                         points.insert (std::pair<float,float>(  3, 1.0));
 396                                         points.insert (std::pair<float,float>(  4, 0.5));
 397                                         points.insert (std::pair<float,float>(  5, 0.5));
 398                                         break;
 399                         }
 400                         break;
 401
 402                 case DataType::MIDI:
 403                         points.insert (std::pair<float,float>(  0, 1.0));
 404                         points.insert (std::pair<float,float>( 16, 0.5));
 405                         points.insert (std::pair<float,float>( 32, 0.5));
 406                         points.insert (std::pair<float,float>( 48, 0.5));
 407                         points.insert (std::pair<float,float>( 64, 1.0));
 408                         points.insert (std::pair<float,float>( 80, 0.5));
 409                         points.insert (std::pair<float,float>( 96, 0.5));
 410                         points.insert (std::pair<float,float>(100, 1.0));
 411                         points.insert (std::pair<float,float>(112, 0.5));
 412                         points.insert (std::pair<float,float>(127, 1.0));
 413                         break;
 414                 }
 415
 416                 for (std::map<float,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
 417                         cairo_set_line_width (cr, (j->second));
 418
 419                         float fraction = 0;
 420                         gint pos;
 421
 422                         switch (*i) {
 423                         case DataType::AUDIO:
 424                                 fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 425
 426                                 pos = height - (gint) floor (height * fraction);
 427                                 pos = max (pos, 1);
 428                                 cairo_move_to(cr, 0, pos + .5);
 429                                 cairo_line_to(cr, 3, pos + .5);
 430                                 cairo_stroke (cr);
 431                                 break;
 432                         case DataType::MIDI:
 433                                 fraction = (j->first) / 127.0;
 434                                 pos = 1 + height - (gint) floor (height * fraction);
 435                                 pos = min (pos, height);
 436                                 cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
 437                                 cairo_fill(cr);
 438                                 break;
 439                         }
 440                 }
 441         }
 442
 443         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 444
 445         cairo_destroy (cr);
 446         cairo_surface_destroy (surface);
 447
 448         return pattern;
 449 }
 450
 451 static cairo_pattern_t*
 452 meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 453 {
 454         Glib::RefPtr<Gdk::Window> win (w.get_window());
 455
 456         bool tickleft, tickright;
 457         bool background;
 458         gint width, height;
 459         win->get_size (width, height);
 460
 461         tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
 462         tickright = w.get_name().substr(w.get_name().length() - 5) == "Right";
 463         background = types.size() == 0 || tickleft || tickright;
 464
 465         if (!tickleft && !tickright) {
 466                 tickright = true;
 467         }
 468
 469         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 470         cairo_t* cr = cairo_create (surface);
 471         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
 472
 473         Pango::AttrList audio_font_attributes;
 474         Pango::AttrList midi_font_attributes;
 475         Pango::AttrList unit_font_attributes;
 476
 477         Pango::AttrFontDesc* font_attr;
 478         Pango::FontDescription font;
 479
 480         font = Pango::FontDescription ("ArdourMono");
 481         double fixfontsize = 81920.0 / (double) ARDOUR::Config->get_font_scale();
 482
 483         font.set_weight (Pango::WEIGHT_NORMAL);
 484         font.set_size (9.0 * PANGO_SCALE * fixfontsize);
 485         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 486         audio_font_attributes.change (*font_attr);
 487         delete font_attr;
 488
 489         font.set_weight (Pango::WEIGHT_ULTRALIGHT);
 490         font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
 491         font.set_size (8.0 * PANGO_SCALE * fixfontsize);
 492         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 493         midi_font_attributes.change (*font_attr);
 494         delete font_attr;
 495
 496         font.set_size (6.0 * PANGO_SCALE * fixfontsize);
 497         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 498         unit_font_attributes.change (*font_attr);
 499         delete font_attr;
 500
 501         cairo_move_to (cr, 0, 0);
 502         cairo_rectangle (cr, 0, 0, width, height);
 503         {
 504                 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
 505                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 506         }
 507         cairo_fill (cr);
 508
 509         cairo_set_line_width (cr, 1.0);
 510
 511         height = min(max_pattern_metric_size, height);
 512         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 513
 514         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 515
 516                 Gdk::Color c;
 517                 if (types.size() > 1) {
 518                         /* we're overlaying more than 1 set of marks, so use different colours */
 519                         switch (*i) {
 520                         case DataType::AUDIO:
 521                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 522                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 523                                 break;
 524                         case DataType::MIDI:
 525                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 526                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 527                                 break;
 528                         }
 529                 } else {
 530                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 531                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 532                 }
 533
 534
 535                 // label-pos in dBFS, label-text
 536                 std::map<float,string> points;
 537
 538                 switch (*i) {
 539                 case DataType::AUDIO:
 540                         layout->set_attributes (audio_font_attributes);
 541                         switch (type) {
 542                                 case MeterK14:
 543                                         points.insert (std::pair<float,string>(-54.0f, "-40"));
 544                                         points.insert (std::pair<float,string>(-44.0f, "-30"));
 545                                         points.insert (std::pair<float,string>(-34.0f, "-20"));
 546                                         points.insert (std::pair<float,string>(-24.0f, "-10"));
 547                                         points.insert (std::pair<float,string>(-20.0f,  "-6"));
 548                                         points.insert (std::pair<float,string>(-17.0f,  "-3"));
 549                                         points.insert (std::pair<float,string>(-14.0f,   "0"));
 550                                         points.insert (std::pair<float,string>(-11.0f,  "+3"));
 551                                         points.insert (std::pair<float,string>( -8.0f,  "+6"));
 552                                         points.insert (std::pair<float,string>( -4.0f, "+10"));
 553                                         points.insert (std::pair<float,string>(  0.0f, "+14"));
 554                                         break;
 555                                 case MeterK20:
 556                                         points.insert (std::pair<float,string>(-60.0f, "-40"));
 557                                         points.insert (std::pair<float,string>(-50.0f, "-30"));
 558                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 559                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 560                                         points.insert (std::pair<float,string>(-26.0f,  "-6"));
 561                                         points.insert (std::pair<float,string>(-23.0f,  "-3"));
 562                                         points.insert (std::pair<float,string>(-20.0f,   "0"));
 563                                         points.insert (std::pair<float,string>(-17.0f,  "+3"));
 564                                         points.insert (std::pair<float,string>(-14.0f,  "+6"));
 565                                         points.insert (std::pair<float,string>(-10.0f, "+10"));
 566                                         points.insert (std::pair<float,string>( -5.0f, "+15"));
 567                                         points.insert (std::pair<float,string>(  0.0f, "+20"));
 568                                         break;
 569                                 default:
 570                                 case MeterPeak:
 571                                 case MeterKrms:
 572                                         points.insert (std::pair<float,string>(-50.0f, "-50"));
 573                                         points.insert (std::pair<float,string>(-40.0f, "-40"));
 574                                         points.insert (std::pair<float,string>(-30.0f, "-30"));
 575                                         points.insert (std::pair<float,string>(-20.0f, "-20"));
 576                                         if (types.size() == 1) {
 577                                                 if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 578                                                         points.insert (std::pair<float,string>(-24.0f, "-24"));
 579                                                 } else {
 580                                                         points.insert (std::pair<float,string>(-25.0f, "-25"));
 581                                                 }
 582                                                 points.insert (std::pair<float,string>(-15.0f, "-15"));
 583                                         }
 584                                         points.insert (std::pair<float,string>(-18.0f, "-18"));
 585                                         points.insert (std::pair<float,string>(-10.0f, "-10"));
 586                                         points.insert (std::pair<float,string>( -5.0f, "-5"));
 587                                         points.insert (std::pair<float,string>( -3.0f, "-3"));
 588                                         points.insert (std::pair<float,string>(  0.0f, "+0"));
 589                                         points.insert (std::pair<float,string>(  3.0f, "+3"));
 590                                         break;
 591
 592                                 case MeterIEC2EBU:
 593                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 594                                         points.insert (std::pair<float,string>(-26.0f, "-8"));
 595                                         points.insert (std::pair<float,string>(-22.0f, "-4"));
 596                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 597                                         points.insert (std::pair<float,string>(-14.0f, "+4"));
 598                                         points.insert (std::pair<float,string>(-10.0f, "+8"));
 599                                         points.insert (std::pair<float,string>( -6.0f, "+12"));
 600                                         break;
 601
 602                                 case MeterIEC2BBC:
 603                                         points.insert (std::pair<float,string>(-30.0f, " 1 "));
 604                                         points.insert (std::pair<float,string>(-26.0f, " 2 "));
 605                                         points.insert (std::pair<float,string>(-22.0f, " 3 "));
 606                                         points.insert (std::pair<float,string>(-18.0f, " 4 "));
 607                                         points.insert (std::pair<float,string>(-14.0f, " 5 "));
 608                                         points.insert (std::pair<float,string>(-10.0f, " 6 "));
 609                                         points.insert (std::pair<float,string>( -6.0f, " 7 "));
 610                                         break;
 611
 612                                 case MeterIEC1NOR:
 613                                         //points.insert (std::pair<float,string>(-60.0f, "-42"));
 614                                         points.insert (std::pair<float,string>(-54.0f, "-36"));
 615                                         points.insert (std::pair<float,string>(-48.0f, "-30"));
 616                                         points.insert (std::pair<float,string>(-42.0f, "-24"));
 617                                         points.insert (std::pair<float,string>(-36.0f, "-18"));
 618
 619                                         points.insert (std::pair<float,string>(-33.0f, "-15"));
 620                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 621                                         points.insert (std::pair<float,string>(-27.0f, "-9"));
 622                                         points.insert (std::pair<float,string>(-24.0f, "-6"));
 623                                         points.insert (std::pair<float,string>(-21.0f, "-3"));
 624
 625                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 626                                         points.insert (std::pair<float,string>(-15.0f, "+3"));
 627                                         points.insert (std::pair<float,string>(-12.0f, "+6"));
 628                                         points.insert (std::pair<float,string>( -9.0f, "+9"));
 629                                         points.insert (std::pair<float,string>( -6.0f, "+12"));
 630                                         break;
 631
 632                                 case MeterIEC1DIN:
 633                                         //points.insert (std::pair<float,string>( -3.0f, "200%"));
 634                                         points.insert (std::pair<float,string>( -4.0f, "+5")); // "100%"
 635                                         points.insert (std::pair<float,string>( -9.0f, "0"));
 636                                         points.insert (std::pair<float,string>(-14.0f, "-5"));
 637                                         //points.insert (std::pair<float,string>(-15.0f, "50%"));
 638                                         //points.insert (std::pair<float,string>(-18.0f, "-9"));
 639                                         points.insert (std::pair<float,string>(-19.0f, "-10")); // "30%"
 640                                         points.insert (std::pair<float,string>(-29.0f, "-20")); // "10%"
 641                                         //points.insert (std::pair<float,string>(-35.0f, "-20")); // "5%"
 642                                         points.insert (std::pair<float,string>(-39.0f, "-30")); // "3%"
 643                                         //points.insert (std::pair<float,string>(-49.0f, "1%"));
 644                                         points.insert (std::pair<float,string>(-59.0f, "-50"));
 645                                         break;
 646
 647                                 case MeterVU:
 648                                         points.insert (std::pair<float,string>(-17.0f, "+3"));
 649                                         points.insert (std::pair<float,string>(-18.0f, "+2"));
 650                                         points.insert (std::pair<float,string>(-19.0f, "+1"));
 651                                         points.insert (std::pair<float,string>(-20.0f, "0"));
 652                                         points.insert (std::pair<float,string>(-21.0f, "-1"));
 653                                         points.insert (std::pair<float,string>(-22.0f, "-2"));
 654                                         points.insert (std::pair<float,string>(-23.0f, "-3"));
 655                                         points.insert (std::pair<float,string>(-25.0f, "-5"));
 656                                         points.insert (std::pair<float,string>(-27.0f, "-7"));
 657                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 658                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 659                                         break;
 660                         }
 661                         break;
 662                 case DataType::MIDI:
 663                         layout->set_attributes (midi_font_attributes);
 664                         points.insert (std::pair<float,string>(  0, "0"));
 665                         if (types.size() == 1) {
 666                                 points.insert (std::pair<float,string>( 16,  "16"));
 667                                 points.insert (std::pair<float,string>( 32,  "32"));
 668                                 points.insert (std::pair<float,string>( 48,  "48"));
 669                                 points.insert (std::pair<float,string>( 64,  "64"));
 670                                 points.insert (std::pair<float,string>( 80,  "80"));
 671                                 points.insert (std::pair<float,string>( 96,  "96"));
 672                                 points.insert (std::pair<float,string>(100, "100"));
 673                                 points.insert (std::pair<float,string>(112, "112"));
 674                         } else {
 675                                 /* labels that don't overlay with dB */
 676                                 points.insert (std::pair<float,string>( 24, "24"));
 677                                 points.insert (std::pair<float,string>( 48, "48"));
 678                                 points.insert (std::pair<float,string>( 72, "74"));
 679                         }
 680                         points.insert (std::pair<float,string>(127, "127"));
 681                         break;
 682                 }
 683
 684                 gint pos;
 685
 686                 for (std::map<float,string>::const_iterator j = points.begin(); j != points.end(); ++j) {
 687                         float fraction = 0;
 688                         bool align_center = background; // this is true for meterbridge meters w/ fixed background
 689                         switch (*i) {
 690                                 case DataType::AUDIO:
 691                                         fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 692
 693                                         pos = height - (gint) floor (height * fraction);
 694                                         pos = max (pos, 1);
 695                                         if (tickleft) {
 696                                                 cairo_move_to(cr, width-1.5, pos + .5);
 697                                                 cairo_line_to(cr, width, pos + .5);
 698                                                 cairo_stroke (cr);
 699                                         } else if (tickright) {
 700                                                 cairo_move_to(cr, 0, pos + .5);
 701                                                 cairo_line_to(cr, 1.5, pos + .5);
 702                                                 cairo_stroke (cr);
 703                                         }
 704                                         break;
 705
 706                                 case DataType::MIDI:
 707                                         align_center = false; // don't bleed into legend
 708                                         fraction = (j->first) / 127.0;
 709                                         pos = 1 + height - (gint) rintf (height * fraction);
 710                                         pos = min (pos, height);
 711                                         if (tickleft) {
 712                                                 cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
 713                                                 cairo_fill(cr);
 714                                         } else if (tickright) {
 715                                                 cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
 716                                                 cairo_fill(cr);
 717                                         }
 718                                         break;
 719                         }
 720
 721                         layout->set_text(j->second.c_str());
 722
 723                         int tw, th;
 724                         layout->get_pixel_size(tw, th);
 725
 726                         int p = pos - (th / 2) - 1;
 727                         p = min (p, height - th);
 728                         p = max (p, 0);
 729
 730                         if (align_center) {
 731                                 cairo_move_to (cr, (width-tw)/2.0, p);
 732                         } else {
 733                                 cairo_move_to (cr, width-3-tw, p);
 734                         }
 735                         pango_cairo_show_layout (cr, layout->gobj());
 736                 }
 737         }
 738
 739         // add legend
 740         if (types.size() == 1) {
 741                 int tw, th;
 742                 layout->set_attributes (unit_font_attributes);
 743                 switch (types.at(0)) {
 744                         case DataType::AUDIO:
 745                                 switch (type) {
 746                                         case MeterK20:
 747                                                 layout->set_text("K20");
 748                                                 break;
 749                                         case MeterK14:
 750                                                 layout->set_text("K14");
 751                                                 break;
 752                                         default:
 753                                         case MeterPeak:
 754                                         case MeterKrms:
 755                                                 layout->set_text("dBFS");
 756                                                 break;
 757                                         case MeterIEC2EBU:
 758                                                 layout->set_text("EBU");
 759                                                 break;
 760                                         case MeterIEC2BBC:
 761                                                 layout->set_text("BBC");
 762                                                 break;
 763                                         case MeterIEC1DIN:
 764                                                 layout->set_text("DIN");
 765                                                 break;
 766                                         case MeterIEC1NOR:
 767                                                 layout->set_text("NOR");
 768                                                 break;
 769                                         case MeterVU:
 770                                                 layout->set_text("VU");
 771                                                 break;
 772                                 }
 773                                 layout->get_pixel_size(tw, th);
 774                                 break;
 775                         case DataType::MIDI:
 776                                 layout->set_text("mid");
 777                                 layout->get_pixel_size(tw, th);
 778                                 break;
 779                 }
 780                 Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 781                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 782                 if (tickleft) {
 783                         cairo_move_to (cr, width - 2 - tw, height - th - 0.5);
 784                 } else {
 785                         cairo_move_to (cr, 2, height - th - 0.5);
 786                 }
 787                 pango_cairo_show_layout (cr, layout->gobj());
 788         }
 789
 790         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 791
 792         cairo_destroy (cr);
 793         cairo_surface_destroy (surface);
 794
 795         return pattern;
 796 }
 797
 798 gint
 799 ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
 800 {
 801         Glib::RefPtr<Gdk::Window> win (mta->get_window());
 802         cairo_t* cr;
 803
 804         cr = gdk_cairo_create (win->gobj());
 805
 806         /* clip to expose area */
 807
 808         gdk_cairo_rectangle (cr, &ev->area);
 809         cairo_clip (cr);
 810
 811         cairo_pattern_t* pattern;
 812         const MeterMatricsMapKey key (mta->get_name(), type);
 813         MetricPatternMap::iterator i = ticks_patterns.find (key);
 814
 815         if (i == ticks_patterns.end()) {
 816                 pattern = meter_render_ticks (*mta, type, types);
 817                 ticks_patterns[key] = pattern;
 818         } else {
 819                 pattern = i->second;
 820         }
 821
 822         cairo_move_to (cr, 0, 0);
 823         cairo_set_source (cr, pattern);
 824
 825         gint width, height;
 826         win->get_size (width, height);
 827
 828         cairo_rectangle (cr, 0, 0, width, height);
 829         cairo_fill (cr);
 830
 831         cairo_destroy (cr);
 832
 833         return true;
 834 }
 835
 836 gint
 837 ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
 838 {
 839         Glib::RefPtr<Gdk::Window> win (mma->get_window());
 840         cairo_t* cr;
 841
 842         cr = gdk_cairo_create (win->gobj());
 843
 844         /* clip to expose area */
 845
 846         gdk_cairo_rectangle (cr, &ev->area);
 847         cairo_clip (cr);
 848
 849         cairo_pattern_t* pattern;
 850         const MeterMatricsMapKey key (mma->get_name(), type);
 851         MetricPatternMap::iterator i = metric_patterns.find (key);
 852
 853         if (i == metric_patterns.end()) {
 854                 pattern = meter_render_metrics (*mma, type, types);
 855                 metric_patterns[key] = pattern;
 856         } else {
 857                 pattern = i->second;
 858         }
 859
 860         cairo_move_to (cr, 0, 0);
 861         cairo_set_source (cr, pattern);
 862
 863         gint width, height;
 864         win->get_size (width, height);
 865
 866         cairo_rectangle (cr, 0, 0, width, height);
 867         cairo_fill (cr);
 868
 869         cairo_destroy (cr);
 870
 871         return true;
 872 }
 873
 874 void
 875 ArdourMeter::meter_clear_pattern_cache(int which) {
 876         MetricPatternMap::iterator i = metric_patterns.begin();
 877         MetricPatternMap::iterator j = ticks_patterns.begin();
 878
 879         while (i != metric_patterns.end()) {
 880                 int m = 4;
 881                 MeterMatricsMapKey const * const key = &(i->first);
 882                 std::string n = key->_n;
 883                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
 884                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
 885                 if (which & m) {
 886                         cairo_pattern_destroy(i->second);
 887                         metric_patterns.erase(i++);
 888                 } else {
 889                         ++i;
 890                 }
 891         }
 892
 893         while (j != ticks_patterns.end()) {
 894                 int m = 4;
 895                 MeterMatricsMapKey const * const key = &(j->first);
 896                 std::string n = key->_n;
 897                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
 898                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
 899                 if (which & m) {
 900                         cairo_pattern_destroy(j->second);
 901                         ticks_patterns.erase(j++);
 902                 } else {
 903                         ++j;
 904                 }
 905         }
 906         RedrawMetrics();
 907 }