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