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                         fraction = meter_deflect_ppm(val);
 132                         cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 133                         break;
 134                 case MeterIEC2EBU:
 135                         fraction = meter_deflect_ppm(val);
 136                         if (val >= -10.0) {
 137                                 cairo_set_source_rgb (cr,
 138                                                 UINT_RGBA_R_FLT(peakcolor),
 139                                                 UINT_RGBA_G_FLT(peakcolor),
 140                                                 UINT_RGBA_B_FLT(peakcolor));
 141                         } else {
 142                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 143                         }
 144                         break;
 145                 case MeterIEC1NOR:
 146                         fraction = meter_deflect_nordic(val);
 147                         if (val >= -12.0) {
 148                                 cairo_set_source_rgb (cr,
 149                                                 UINT_RGBA_R_FLT(peakcolor),
 150                                                 UINT_RGBA_G_FLT(peakcolor),
 151                                                 UINT_RGBA_B_FLT(peakcolor));
 152                         } else {
 153                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 154                         }
 155                         break;
 156                 case MeterIEC1DIN:
 157                         fraction = meter_deflect_din(val);
 158                         if (val >= -9.0) {
 159                                 cairo_set_source_rgb (cr,
 160                                                 UINT_RGBA_R_FLT(peakcolor),
 161                                                 UINT_RGBA_G_FLT(peakcolor),
 162                                                 UINT_RGBA_B_FLT(peakcolor));
 163                         } else {
 164                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 165                         }
 166                         break;
 167                 case MeterVU:
 168                         fraction = meter_deflect_vu(val);
 169                         if (val >= -20.0) {
 170                                 cairo_set_source_rgb (cr,
 171                                                 UINT_RGBA_R_FLT(peakcolor),
 172                                                 UINT_RGBA_G_FLT(peakcolor),
 173                                                 UINT_RGBA_B_FLT(peakcolor));
 174                         } else {
 175                                 cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
 176                         }
 177                         break;
 178                 case MeterK20:
 179                         fraction = meter_deflect_k (val, 20);
 180                         if (val >= -16.0) {
 181                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 182                         } else if (val >= -20.0) {
 183                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 184                         } else {
 185                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 186                         }
 187                         break;
 188                 case MeterK14:
 189                         if (val >= -10.0) {
 190                                 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
 191                         } else if (val >= -14.0) {
 192                                 cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
 193                         } else {
 194                                 cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
 195                         }
 196                         fraction = meter_deflect_k (val, 14);
 197                         break;
 198         }
 199         return fraction;
 200 }
 201
 202
 203 static cairo_pattern_t*
 204 meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> types)
 205 {
 206         Glib::RefPtr<Gdk::Window> win (w.get_window());
 207
 208         bool background;
 209         gint width, height;
 210         win->get_size (width, height);
 211         background = types.size() == 0
 212                 || w.get_name().substr(w.get_name().length() - 4) == "Left"
 213                 || w.get_name().substr(w.get_name().length() - 5) == "Right";
 214
 215         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 216         cairo_t* cr = cairo_create (surface);
 217
 218         cairo_move_to (cr, 0, 0);
 219         cairo_rectangle (cr, 0, 0, width, height);
 220         {
 221                 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
 222                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 223         }
 224         cairo_fill (cr);
 225
 226         height = min(max_pattern_metric_size, height);
 227         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 228
 229         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 230
 231                 Gdk::Color c;
 232                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 233
 234                 if (types.size() > 1) {
 235                         /* we're overlaying more than 1 set of marks, so use different colours */
 236                         switch (*i) {
 237                         case DataType::AUDIO:
 238                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 239                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 240                                 break;
 241                         case DataType::MIDI:
 242                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 243                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 244                                 break;
 245                         }
 246                 } else {
 247                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 248                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 249                 }
 250
 251                 // tick-maker position in dBFS, line-thickness
 252                 std::map<float,float> points;
 253
 254                 switch (*i) {
 255                 case DataType::AUDIO:
 256
 257                         switch (type) {
 258                                 case MeterK14:
 259                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 260                                         points.insert (std::pair<float,float>(-44.0f, 1.0));
 261                                         points.insert (std::pair<float,float>(-34.0f, 1.0));
 262                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 263                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 264                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 265                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 266                                         points.insert (std::pair<float,float>(-11.0f, 1.0));
 267                                         points.insert (std::pair<float,float>( -8.0f, 1.0));
 268                                         points.insert (std::pair<float,float>( -4.0f, 1.0));
 269                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 270                                         break;
 271                                 case MeterK20:
 272                                         points.insert (std::pair<float,float>(-60.0f, 1.0));
 273                                         points.insert (std::pair<float,float>(-50.0f, 1.0));
 274                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 275                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 276                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 277                                         points.insert (std::pair<float,float>(-23.0f, 1.0));
 278                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 279                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 280                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 281                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 282                                         points.insert (std::pair<float,float>( -5.0f, 1.0));
 283                                         points.insert (std::pair<float,float>(  0.0f, 1.0));
 284                                         break;
 285                                 case MeterIEC2EBU:
 286                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 287                                         points.insert (std::pair<float,float>(-28.0f, 0.5));
 288                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 289                                         points.insert (std::pair<float,float>(-24.0f, 0.5));
 290                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 291                                         points.insert (std::pair<float,float>(-20.0f, 0.5));
 292                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 293                                         points.insert (std::pair<float,float>(-16.0f, 0.5));
 294                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 295                                         points.insert (std::pair<float,float>(-12.0f, 0.5));
 296                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 297                                         points.insert (std::pair<float,float>( -9.0f, 0.5));
 298                                         points.insert (std::pair<float,float>( -8.0f, 0.5));
 299                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 300                                         break;
 301                                 case MeterIEC2BBC:
 302                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 303                                         points.insert (std::pair<float,float>(-26.0f, 1.0));
 304                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 305                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 306                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 307                                         points.insert (std::pair<float,float>(-10.0f, 1.0));
 308                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 309                                         break;
 310                                 case MeterIEC1NOR:
 311                                         points.insert (std::pair<float,float>(-60.0f, 1.0)); // -42
 312                                         points.insert (std::pair<float,float>(-57.0f, 0.5));
 313                                         points.insert (std::pair<float,float>(-54.0f, 1.0));
 314                                         points.insert (std::pair<float,float>(-51.0f, 0.5));
 315                                         points.insert (std::pair<float,float>(-48.0f, 1.0));
 316                                         points.insert (std::pair<float,float>(-45.0f, 0.5));
 317                                         points.insert (std::pair<float,float>(-42.0f, 1.0));
 318                                         points.insert (std::pair<float,float>(-39.0f, 0.5));
 319                                         points.insert (std::pair<float,float>(-36.0f, 1.0));
 320
 321                                         points.insert (std::pair<float,float>(-33.0f, 1.0));
 322                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 323                                         points.insert (std::pair<float,float>(-27.0f, 1.0));
 324                                         points.insert (std::pair<float,float>(-24.0f, 1.0));
 325                                         points.insert (std::pair<float,float>(-21.0f, 1.0));
 326
 327                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 328                                         points.insert (std::pair<float,float>(-15.0f, 1.0));
 329                                         points.insert (std::pair<float,float>(-12.0f, 1.0));
 330                                         points.insert (std::pair<float,float>( -9.0f, 1.0));
 331                                         points.insert (std::pair<float,float>( -6.0f, 1.0));
 332                                         break;
 333                                 case MeterIEC1DIN:
 334                                         points.insert (std::pair<float,float>( -3.0f, 0.5)); // "200%"
 335                                         points.insert (std::pair<float,float>( -4.0f, 1.0)); // "100%"
 336                                         points.insert (std::pair<float,float>( -9.0f, 1.0));
 337                                         points.insert (std::pair<float,float>(-14.0f, 1.0));
 338                                         points.insert (std::pair<float,float>(-15.0f, 0.5)); // "50%"
 339                                         points.insert (std::pair<float,float>(-18.0f, 0.5)); // "-9"
 340                                         points.insert (std::pair<float,float>(-19.0f, 1.0)); // "30%"
 341                                         points.insert (std::pair<float,float>(-29.0f, 1.0)); // "10%"
 342                                         points.insert (std::pair<float,float>(-35.0f, 0.5)); // "5%" " -20"
 343                                         points.insert (std::pair<float,float>(-39.0f, 1.0)); // "3%"
 344                                         points.insert (std::pair<float,float>(-49.0f, 0.5)); // "1%"
 345                                         points.insert (std::pair<float,float>(-59.0f, 1.0));
 346                                         break;
 347                                 case MeterVU:
 348                                         points.insert (std::pair<float,float>(-17.0f, 1.0));
 349                                         points.insert (std::pair<float,float>(-18.0f, 1.0));
 350                                         points.insert (std::pair<float,float>(-19.0f, 1.0));
 351                                         points.insert (std::pair<float,float>(-20.0f, 1.0));
 352                                         points.insert (std::pair<float,float>(-21.0f, 1.0));
 353                                         points.insert (std::pair<float,float>(-22.0f, 1.0));
 354                                         points.insert (std::pair<float,float>(-23.0f, 1.0));
 355                                         points.insert (std::pair<float,float>(-25.0f, 1.0));
 356                                         points.insert (std::pair<float,float>(-27.0f, 1.0));
 357                                         points.insert (std::pair<float,float>(-30.0f, 1.0));
 358                                         points.insert (std::pair<float,float>(-40.0f, 1.0));
 359                                         break;
 360
 361                                 default:
 362                                         points.insert (std::pair<float,float>(-60, 0.5));
 363                                         points.insert (std::pair<float,float>(-50, 1.0));
 364                                         points.insert (std::pair<float,float>(-40, 1.0));
 365                                         points.insert (std::pair<float,float>(-30, 1.0));
 366                                         if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 367                                                 points.insert (std::pair<float,float>(-24, 1.0));
 368                                         } else {
 369                                                 points.insert (std::pair<float,float>(-25, 1.0));
 370                                         }
 371                                         points.insert (std::pair<float,float>(-20, 1.0));
 372
 373                                         points.insert (std::pair<float,float>(-19, 0.5));
 374                                         points.insert (std::pair<float,float>(-18, 1.0));
 375                                         points.insert (std::pair<float,float>(-17, 0.5));
 376                                         points.insert (std::pair<float,float>(-16, 0.5));
 377                                         points.insert (std::pair<float,float>(-15, 1.0));
 378
 379                                         points.insert (std::pair<float,float>(-14, 0.5));
 380                                         points.insert (std::pair<float,float>(-13, 0.5));
 381                                         points.insert (std::pair<float,float>(-12, 0.5));
 382                                         points.insert (std::pair<float,float>(-11, 0.5));
 383                                         points.insert (std::pair<float,float>(-10, 1.0));
 384
 385                                         points.insert (std::pair<float,float>( -9, 1.0));
 386                                         points.insert (std::pair<float,float>( -8, 0.5));
 387                                         points.insert (std::pair<float,float>( -7, 0.5));
 388                                         points.insert (std::pair<float,float>( -6, 0.5));
 389                                         points.insert (std::pair<float,float>( -5, 1.0));
 390                                         points.insert (std::pair<float,float>( -4, 0.5));
 391                                         points.insert (std::pair<float,float>( -3, 1.0));
 392                                         points.insert (std::pair<float,float>( -2, 0.5));
 393                                         points.insert (std::pair<float,float>( -1, 0.5));
 394
 395                                         points.insert (std::pair<float,float>(  0, 1.0));
 396                                         points.insert (std::pair<float,float>(  1, 0.5));
 397                                         points.insert (std::pair<float,float>(  2, 0.5));
 398                                         points.insert (std::pair<float,float>(  3, 1.0));
 399                                         points.insert (std::pair<float,float>(  4, 0.5));
 400                                         points.insert (std::pair<float,float>(  5, 0.5));
 401                                         break;
 402                         }
 403                         break;
 404
 405                 case DataType::MIDI:
 406                         points.insert (std::pair<float,float>(  0, 1.0));
 407                         points.insert (std::pair<float,float>( 16, 0.5));
 408                         points.insert (std::pair<float,float>( 32, 0.5));
 409                         points.insert (std::pair<float,float>( 48, 0.5));
 410                         points.insert (std::pair<float,float>( 64, 1.0));
 411                         points.insert (std::pair<float,float>( 80, 0.5));
 412                         points.insert (std::pair<float,float>( 96, 0.5));
 413                         points.insert (std::pair<float,float>(100, 1.0));
 414                         points.insert (std::pair<float,float>(112, 0.5));
 415                         points.insert (std::pair<float,float>(127, 1.0));
 416                         break;
 417                 }
 418
 419                 for (std::map<float,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
 420                         cairo_set_line_width (cr, (j->second));
 421
 422                         float fraction = 0;
 423                         gint pos;
 424
 425                         switch (*i) {
 426                         case DataType::AUDIO:
 427                                 fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 428
 429                                 pos = height - (gint) floor (height * fraction);
 430                                 pos = max (pos, 1);
 431                                 cairo_move_to(cr, 0, pos + .5);
 432                                 cairo_line_to(cr, 3, pos + .5);
 433                                 cairo_stroke (cr);
 434                                 break;
 435                         case DataType::MIDI:
 436                                 fraction = (j->first) / 127.0;
 437                                 pos = 1 + height - (gint) floor (height * fraction);
 438                                 pos = min (pos, height);
 439                                 cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
 440                                 cairo_fill(cr);
 441                                 break;
 442                         }
 443                 }
 444         }
 445
 446         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 447
 448         cairo_destroy (cr);
 449         cairo_surface_destroy (surface);
 450
 451         return pattern;
 452 }
 453
 454 static cairo_pattern_t*
 455 meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 456 {
 457         Glib::RefPtr<Gdk::Window> win (w.get_window());
 458
 459         bool tickleft, tickright;
 460         bool background;
 461         gint width, height;
 462         win->get_size (width, height);
 463
 464         tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
 465         tickright = w.get_name().substr(w.get_name().length() - 5) == "Right";
 466         background = types.size() == 0 || tickleft || tickright;
 467
 468         if (!tickleft && !tickright) {
 469                 tickright = true;
 470         }
 471
 472         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 473         cairo_t* cr = cairo_create (surface);
 474         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
 475
 476         Pango::AttrList audio_font_attributes;
 477         Pango::AttrList midi_font_attributes;
 478         Pango::AttrList unit_font_attributes;
 479
 480         Pango::AttrFontDesc* font_attr;
 481         Pango::FontDescription font;
 482
 483         font = Pango::FontDescription ("ArdourMono");
 484         double fixfontsize = 81920.0 / (double) ARDOUR::Config->get_font_scale();
 485
 486         font.set_weight (Pango::WEIGHT_NORMAL);
 487         font.set_size (9.0 * PANGO_SCALE * fixfontsize);
 488         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 489         audio_font_attributes.change (*font_attr);
 490         delete font_attr;
 491
 492         font.set_weight (Pango::WEIGHT_ULTRALIGHT);
 493         font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
 494         font.set_size (8.0 * PANGO_SCALE * fixfontsize);
 495         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 496         midi_font_attributes.change (*font_attr);
 497         delete font_attr;
 498
 499         font.set_size (6.0 * PANGO_SCALE * fixfontsize);
 500         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 501         unit_font_attributes.change (*font_attr);
 502         delete font_attr;
 503
 504         cairo_move_to (cr, 0, 0);
 505         cairo_rectangle (cr, 0, 0, width, height);
 506         {
 507                 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
 508                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 509         }
 510         cairo_fill (cr);
 511
 512         cairo_set_line_width (cr, 1.0);
 513
 514         height = min(max_pattern_metric_size, height);
 515         uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
 516
 517         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 518
 519                 Gdk::Color c;
 520                 if (types.size() > 1) {
 521                         /* we're overlaying more than 1 set of marks, so use different colours */
 522                         switch (*i) {
 523                         case DataType::AUDIO:
 524                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 525                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 526                                 break;
 527                         case DataType::MIDI:
 528                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 529                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 530                                 break;
 531                         }
 532                 } else {
 533                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 534                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 535                 }
 536
 537
 538                 // label-pos in dBFS, label-text
 539                 std::map<float,string> points;
 540
 541                 switch (*i) {
 542                 case DataType::AUDIO:
 543                         layout->set_attributes (audio_font_attributes);
 544                         switch (type) {
 545                                 case MeterK14:
 546                                         points.insert (std::pair<float,string>(-54.0f, "-40"));
 547                                         points.insert (std::pair<float,string>(-44.0f, "-30"));
 548                                         points.insert (std::pair<float,string>(-34.0f, "-20"));
 549                                         points.insert (std::pair<float,string>(-24.0f, "-10"));
 550                                         points.insert (std::pair<float,string>(-20.0f,  "-6"));
 551                                         points.insert (std::pair<float,string>(-17.0f,  "-3"));
 552                                         points.insert (std::pair<float,string>(-14.0f,   "0"));
 553                                         points.insert (std::pair<float,string>(-11.0f,  "+3"));
 554                                         points.insert (std::pair<float,string>( -8.0f,  "+6"));
 555                                         points.insert (std::pair<float,string>( -4.0f, "+10"));
 556                                         points.insert (std::pair<float,string>(  0.0f, "+14"));
 557                                         break;
 558                                 case MeterK20:
 559                                         points.insert (std::pair<float,string>(-60.0f, "-40"));
 560                                         points.insert (std::pair<float,string>(-50.0f, "-30"));
 561                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 562                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 563                                         points.insert (std::pair<float,string>(-26.0f,  "-6"));
 564                                         points.insert (std::pair<float,string>(-23.0f,  "-3"));
 565                                         points.insert (std::pair<float,string>(-20.0f,   "0"));
 566                                         points.insert (std::pair<float,string>(-17.0f,  "+3"));
 567                                         points.insert (std::pair<float,string>(-14.0f,  "+6"));
 568                                         points.insert (std::pair<float,string>(-10.0f, "+10"));
 569                                         points.insert (std::pair<float,string>( -5.0f, "+15"));
 570                                         points.insert (std::pair<float,string>(  0.0f, "+20"));
 571                                         break;
 572                                 default:
 573                                 case MeterPeak:
 574                                 case MeterKrms:
 575                                         points.insert (std::pair<float,string>(-50.0f, "-50"));
 576                                         points.insert (std::pair<float,string>(-40.0f, "-40"));
 577                                         points.insert (std::pair<float,string>(-30.0f, "-30"));
 578                                         points.insert (std::pair<float,string>(-20.0f, "-20"));
 579                                         if (types.size() == 1) {
 580                                                 if (Config->get_meter_line_up_level() == MeteringLineUp24) {
 581                                                         points.insert (std::pair<float,string>(-24.0f, "-24"));
 582                                                 } else {
 583                                                         points.insert (std::pair<float,string>(-25.0f, "-25"));
 584                                                 }
 585                                                 points.insert (std::pair<float,string>(-15.0f, "-15"));
 586                                         }
 587                                         points.insert (std::pair<float,string>(-18.0f, "-18"));
 588                                         points.insert (std::pair<float,string>(-10.0f, "-10"));
 589                                         points.insert (std::pair<float,string>( -5.0f, "-5"));
 590                                         points.insert (std::pair<float,string>( -3.0f, "-3"));
 591                                         points.insert (std::pair<float,string>(  0.0f, "+0"));
 592                                         points.insert (std::pair<float,string>(  3.0f, "+3"));
 593                                         break;
 594
 595                                 case MeterIEC2EBU:
 596                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 597                                         points.insert (std::pair<float,string>(-26.0f, "-8"));
 598                                         points.insert (std::pair<float,string>(-22.0f, "-4"));
 599                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 600                                         points.insert (std::pair<float,string>(-14.0f, "+4"));
 601                                         points.insert (std::pair<float,string>(-10.0f, "+8"));
 602                                         points.insert (std::pair<float,string>( -6.0f, "+12"));
 603                                         break;
 604
 605                                 case MeterIEC2BBC:
 606                                         points.insert (std::pair<float,string>(-30.0f, " 1 "));
 607                                         points.insert (std::pair<float,string>(-26.0f, " 2 "));
 608                                         points.insert (std::pair<float,string>(-22.0f, " 3 "));
 609                                         points.insert (std::pair<float,string>(-18.0f, " 4 "));
 610                                         points.insert (std::pair<float,string>(-14.0f, " 5 "));
 611                                         points.insert (std::pair<float,string>(-10.0f, " 6 "));
 612                                         points.insert (std::pair<float,string>( -6.0f, " 7 "));
 613                                         break;
 614
 615                                 case MeterIEC1NOR:
 616                                         //points.insert (std::pair<float,string>(-60.0f, "-42"));
 617                                         points.insert (std::pair<float,string>(-54.0f, "-36"));
 618                                         points.insert (std::pair<float,string>(-48.0f, "-30"));
 619                                         points.insert (std::pair<float,string>(-42.0f, "-24"));
 620                                         points.insert (std::pair<float,string>(-36.0f, "-18"));
 621
 622                                         points.insert (std::pair<float,string>(-33.0f, "-15"));
 623                                         points.insert (std::pair<float,string>(-30.0f, "-12"));
 624                                         points.insert (std::pair<float,string>(-27.0f, "-9"));
 625                                         points.insert (std::pair<float,string>(-24.0f, "-6"));
 626                                         points.insert (std::pair<float,string>(-21.0f, "-3"));
 627
 628                                         points.insert (std::pair<float,string>(-18.0f, "TST"));
 629                                         points.insert (std::pair<float,string>(-15.0f, "+3"));
 630                                         points.insert (std::pair<float,string>(-12.0f, "+6"));
 631                                         points.insert (std::pair<float,string>( -9.0f, "+9"));
 632                                         points.insert (std::pair<float,string>( -6.0f, "+12"));
 633                                         break;
 634
 635                                 case MeterIEC1DIN:
 636                                         //points.insert (std::pair<float,string>( -3.0f, "200%"));
 637                                         points.insert (std::pair<float,string>( -4.0f, "+5")); // "100%"
 638                                         points.insert (std::pair<float,string>( -9.0f, "0"));
 639                                         points.insert (std::pair<float,string>(-14.0f, "-5"));
 640                                         //points.insert (std::pair<float,string>(-15.0f, "50%"));
 641                                         //points.insert (std::pair<float,string>(-18.0f, "-9"));
 642                                         points.insert (std::pair<float,string>(-19.0f, "-10")); // "30%"
 643                                         points.insert (std::pair<float,string>(-29.0f, "-20")); // "10%"
 644                                         //points.insert (std::pair<float,string>(-35.0f, "-20")); // "5%"
 645                                         points.insert (std::pair<float,string>(-39.0f, "-30")); // "3%"
 646                                         //points.insert (std::pair<float,string>(-49.0f, "1%"));
 647                                         points.insert (std::pair<float,string>(-59.0f, "-50"));
 648                                         break;
 649
 650                                 case MeterVU:
 651                                         points.insert (std::pair<float,string>(-17.0f, "+3"));
 652                                         points.insert (std::pair<float,string>(-18.0f, "+2"));
 653                                         points.insert (std::pair<float,string>(-19.0f, "+1"));
 654                                         points.insert (std::pair<float,string>(-20.0f, "0"));
 655                                         points.insert (std::pair<float,string>(-21.0f, "-1"));
 656                                         points.insert (std::pair<float,string>(-22.0f, "-2"));
 657                                         points.insert (std::pair<float,string>(-23.0f, "-3"));
 658                                         points.insert (std::pair<float,string>(-25.0f, "-5"));
 659                                         points.insert (std::pair<float,string>(-27.0f, "-7"));
 660                                         points.insert (std::pair<float,string>(-30.0f, "-10"));
 661                                         points.insert (std::pair<float,string>(-40.0f, "-20"));
 662                                         break;
 663                         }
 664                         break;
 665                 case DataType::MIDI:
 666                         layout->set_attributes (midi_font_attributes);
 667                         points.insert (std::pair<float,string>(  0, "0"));
 668                         if (types.size() == 1) {
 669                                 points.insert (std::pair<float,string>( 16,  "16"));
 670                                 points.insert (std::pair<float,string>( 32,  "32"));
 671                                 points.insert (std::pair<float,string>( 48,  "48"));
 672                                 points.insert (std::pair<float,string>( 64,  "64"));
 673                                 points.insert (std::pair<float,string>( 80,  "80"));
 674                                 points.insert (std::pair<float,string>( 96,  "96"));
 675                                 points.insert (std::pair<float,string>(100, "100"));
 676                                 points.insert (std::pair<float,string>(112, "112"));
 677                         } else {
 678                                 /* labels that don't overlay with dB */
 679                                 points.insert (std::pair<float,string>( 24, "24"));
 680                                 points.insert (std::pair<float,string>( 48, "48"));
 681                                 points.insert (std::pair<float,string>( 72, "74"));
 682                         }
 683                         points.insert (std::pair<float,string>(127, "127"));
 684                         break;
 685                 }
 686
 687                 gint pos;
 688
 689                 for (std::map<float,string>::const_iterator j = points.begin(); j != points.end(); ++j) {
 690                         float fraction = 0;
 691                         bool align_center = background; // this is true for meterbridge meters w/ fixed background
 692                         switch (*i) {
 693                                 case DataType::AUDIO:
 694                                         fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
 695
 696                                         pos = height - (gint) floor (height * fraction);
 697                                         pos = max (pos, 1);
 698                                         if (tickleft) {
 699                                                 cairo_move_to(cr, width-1.5, pos + .5);
 700                                                 cairo_line_to(cr, width, pos + .5);
 701                                                 cairo_stroke (cr);
 702                                         } else if (tickright) {
 703                                                 cairo_move_to(cr, 0, pos + .5);
 704                                                 cairo_line_to(cr, 1.5, pos + .5);
 705                                                 cairo_stroke (cr);
 706                                         }
 707                                         break;
 708
 709                                 case DataType::MIDI:
 710                                         align_center = false; // don't bleed into legend
 711                                         fraction = (j->first) / 127.0;
 712                                         pos = 1 + height - (gint) rintf (height * fraction);
 713                                         pos = min (pos, height);
 714                                         if (tickleft) {
 715                                                 cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
 716                                                 cairo_fill(cr);
 717                                         } else if (tickright) {
 718                                                 cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
 719                                                 cairo_fill(cr);
 720                                         }
 721                                         break;
 722                         }
 723
 724                         layout->set_text(j->second.c_str());
 725
 726                         int tw, th;
 727                         layout->get_pixel_size(tw, th);
 728
 729                         int p = pos - (th / 2) - 1;
 730                         p = min (p, height - th);
 731                         p = max (p, 0);
 732
 733                         if (align_center) {
 734                                 cairo_move_to (cr, (width-tw)/2.0, p);
 735                         } else {
 736                                 cairo_move_to (cr, width-3-tw, p);
 737                         }
 738                         pango_cairo_show_layout (cr, layout->gobj());
 739                 }
 740         }
 741
 742         // add legend
 743         if (types.size() == 1) {
 744                 int tw, th;
 745                 layout->set_attributes (unit_font_attributes);
 746                 switch (types.at(0)) {
 747                         case DataType::AUDIO:
 748                                 switch (type) {
 749                                         case MeterK20:
 750                                                 layout->set_text("K20");
 751                                                 break;
 752                                         case MeterK14:
 753                                                 layout->set_text("K14");
 754                                                 break;
 755                                         default:
 756                                         case MeterPeak:
 757                                         case MeterKrms:
 758                                                 layout->set_text("dBFS");
 759                                                 break;
 760                                         case MeterIEC2EBU:
 761                                                 layout->set_text("EBU");
 762                                                 break;
 763                                         case MeterIEC2BBC:
 764                                                 layout->set_text("BBC");
 765                                                 break;
 766                                         case MeterIEC1DIN:
 767                                                 layout->set_text("DIN");
 768                                                 break;
 769                                         case MeterIEC1NOR:
 770                                                 layout->set_text("NOR");
 771                                                 break;
 772                                         case MeterVU:
 773                                                 layout->set_text("VU");
 774                                                 break;
 775                                 }
 776                                 layout->get_pixel_size(tw, th);
 777                                 break;
 778                         case DataType::MIDI:
 779                                 layout->set_text("mid");
 780                                 layout->get_pixel_size(tw, th);
 781                                 break;
 782                 }
 783                 Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 784                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 785                 if (tickleft) {
 786                         cairo_move_to (cr, width - 2 - tw, height - th - 0.5);
 787                 } else {
 788                         cairo_move_to (cr, 2, height - th - 0.5);
 789                 }
 790                 pango_cairo_show_layout (cr, layout->gobj());
 791         }
 792
 793         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
 794
 795         cairo_destroy (cr);
 796         cairo_surface_destroy (surface);
 797
 798         return pattern;
 799 }
 800
 801 gint
 802 ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
 803 {
 804         Glib::RefPtr<Gdk::Window> win (mta->get_window());
 805         cairo_t* cr;
 806
 807         cr = gdk_cairo_create (win->gobj());
 808
 809         /* clip to expose area */
 810
 811         gdk_cairo_rectangle (cr, &ev->area);
 812         cairo_clip (cr);
 813
 814         cairo_pattern_t* pattern;
 815         const MeterMatricsMapKey key (mta->get_name(), type);
 816         MetricPatternMap::iterator i = ticks_patterns.find (key);
 817
 818         if (i == ticks_patterns.end()) {
 819                 pattern = meter_render_ticks (*mta, type, types);
 820                 ticks_patterns[key] = pattern;
 821         } else {
 822                 pattern = i->second;
 823         }
 824
 825         cairo_move_to (cr, 0, 0);
 826         cairo_set_source (cr, pattern);
 827
 828         gint width, height;
 829         win->get_size (width, height);
 830
 831         cairo_rectangle (cr, 0, 0, width, height);
 832         cairo_fill (cr);
 833
 834         cairo_destroy (cr);
 835
 836         return true;
 837 }
 838
 839 gint
 840 ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
 841 {
 842         Glib::RefPtr<Gdk::Window> win (mma->get_window());
 843         cairo_t* cr;
 844
 845         cr = gdk_cairo_create (win->gobj());
 846
 847         /* clip to expose area */
 848
 849         gdk_cairo_rectangle (cr, &ev->area);
 850         cairo_clip (cr);
 851
 852         cairo_pattern_t* pattern;
 853         const MeterMatricsMapKey key (mma->get_name(), type);
 854         MetricPatternMap::iterator i = metric_patterns.find (key);
 855
 856         if (i == metric_patterns.end()) {
 857                 pattern = meter_render_metrics (*mma, type, types);
 858                 metric_patterns[key] = pattern;
 859         } else {
 860                 pattern = i->second;
 861         }
 862
 863         cairo_move_to (cr, 0, 0);
 864         cairo_set_source (cr, pattern);
 865
 866         gint width, height;
 867         win->get_size (width, height);
 868
 869         cairo_rectangle (cr, 0, 0, width, height);
 870         cairo_fill (cr);
 871
 872         cairo_destroy (cr);
 873
 874         return true;
 875 }
 876
 877 void
 878 ArdourMeter::meter_clear_pattern_cache(int which) {
 879         MetricPatternMap::iterator i = metric_patterns.begin();
 880         MetricPatternMap::iterator j = ticks_patterns.begin();
 881
 882         while (i != metric_patterns.end()) {
 883                 int m = 4;
 884                 MeterMatricsMapKey const * const key = &(i->first);
 885                 std::string n = key->_n;
 886                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
 887                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
 888                 if (which & m) {
 889                         cairo_pattern_destroy(i->second);
 890                         metric_patterns.erase(i++);
 891                 } else {
 892                         ++i;
 893                 }
 894         }
 895
 896         while (j != ticks_patterns.end()) {
 897                 int m = 4;
 898                 MeterMatricsMapKey const * const key = &(j->first);
 899                 std::string n = key->_n;
 900                 if (n.substr(n.length() - 4) == "Left")  { m = 1; }
 901                 if (n.substr(n.length() - 5) == "Right") { m = 2; }
 902                 if (which & m) {
 903                         cairo_pattern_destroy(j->second);
 904                         ticks_patterns.erase(j++);
 905                 } else {
 906                         ++j;
 907                 }
 908         }
 909         RedrawMetrics();
 910 }