gtk2_ardour/export_report.cc

   1 /*
   2  * Copyright (C) 2016 Robin Gareus <robin@gareus.org>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #include <algorithm>
  20
  21 #include <pangomm/layout.h>
  22 #include <gtkmm/label.h>
  23 #include <gtkmm/table.h>
  24 #include <gtkmm/stock.h>
  25
  26 #include "pbd/openuri.h"
  27 #include "gtkmm2ext/utils.h"
  28 #include "gtkmm2ext/utils.h"
  29 #include "canvas/utils.h"
  30 #include "canvas/colors.h"
  31
  32 #include "audiographer/general/analyser.h"
  33
  34 #include "ardour/audiofilesource.h"
  35 #include "ardour/audioregion.h"
  36 #include "ardour/auditioner.h"
  37 #include "ardour/dB.h"
  38 #include "ardour/region_factory.h"
  39 #include "ardour/session.h"
  40 #include "ardour/smf_source.h"
  41 #include "ardour/source_factory.h"
  42 #include "ardour/srcfilesource.h"
  43
  44 #include "audio_clock.h"
  45 #include "export_report.h"
  46 #include "logmeter.h"
  47 #include "ui_config.h"
  48
  49 #include "i18n.h"
  50
  51 using namespace Gtk;
  52 using namespace ARDOUR;
  53
  54 ExportReport::ExportReport (Session* session, StatusPtr s)
  55         : ArdourDialog (_("Export Report/Analysis"))
  56         , status (s)
  57         , _session (session)
  58         , _audition_num (-1)
  59         , _page_num (0)
  60 {
  61         set_resizable (false);
  62         pages.set_scrollable ();
  63
  64         AnalysisResults & ar = status->result_map;
  65
  66         std::vector<double> dashes;
  67         dashes.push_back (3.0);
  68         dashes.push_back (5.0);
  69
  70         int page = 0;
  71         for (AnalysisResults::iterator i = ar.begin (); i != ar.end (); ++i, ++page) {
  72                 Label *l;
  73                 VBox *vb = manage (new VBox ());
  74                 Table *t = manage (new Table (4, 4));
  75                 Table *wtbl = manage (new Table (3, 2));
  76                 int wrow = 0;
  77                 t->set_border_width (0);
  78                 t->set_spacings (4);
  79                 wtbl->set_spacings (4);
  80                 vb->set_spacing (4);
  81                 vb->set_border_width (4);
  82                 vb->pack_start (*t, false, false, 2);
  83                 vb->pack_start (*wtbl, false, false, 2);
  84
  85                 std::string path = i->first;
  86                 ExportAnalysisPtr p = i->second;
  87
  88                 std::list<CimgPlayheadArea*> playhead_widgets;
  89
  90                 l = manage (new Label (_("File:"), ALIGN_END));
  91                 t->attach (*l, 0, 1, 0, 1);
  92                 l = manage (new Label ());
  93                 l->set_ellipsize (Pango::ELLIPSIZE_START);
  94                 l->set_width_chars (48);
  95                 l->set_max_width_chars (48);
  96                 l->set_text (path);
  97                 l->set_alignment (ALIGN_START, ALIGN_CENTER);
  98                 t->attach (*l, 1, 3, 0, 1, FILL, SHRINK);
  99
 100                 Button *b = manage (new Button (_("Open Folder")));
 101                 t->attach (*b, 3, 4, 0, 2, FILL, SHRINK);
 102                 b->signal_clicked ().connect (sigc::bind (sigc::mem_fun (*this, &ExportReport::open_folder), path));
 103
 104                 SoundFileInfo info;
 105                 std::string errmsg;
 106
 107                 framecnt_t file_length = 0;
 108                 framecnt_t sample_rate = 0;
 109                 framecnt_t start_off = 0;
 110                 unsigned int channels = 0;
 111
 112                 if (AudioFileSource::get_soundfile_info (path, info, errmsg)) {
 113                         AudioClock * clock;
 114
 115                         file_length = info.length;
 116                         sample_rate = info.samplerate;
 117                         start_off = info.timecode;
 118                         channels = info.channels;
 119
 120                         files.insert (std::make_pair (page, AuditionInfo (path, channels)));
 121
 122                         /* File Info Table */
 123
 124                         framecnt_t const nfr = _session ? _session->nominal_frame_rate () : 25;
 125                         double src_coef = (double) nfr / info.samplerate;
 126
 127                         l = manage (new Label (_("Format:"), ALIGN_END));
 128                         t->attach (*l, 0, 1, 1, 2);
 129                         std::string fmt = info.format_name;
 130                         std::replace (fmt.begin (), fmt.end (), '\n', ' ');
 131                         l = manage (new Label ());
 132                         l->set_ellipsize (Pango::ELLIPSIZE_START);
 133                         l->set_width_chars (48);
 134                         l->set_max_width_chars (48);
 135                         l->set_text (fmt);
 136                         l->set_alignment (ALIGN_START, ALIGN_CENTER);
 137                         t->attach (*l, 1, 3, 1, 2, FILL, SHRINK);
 138
 139                         l = manage (new Label (_("Channels:"), ALIGN_END));
 140                         t->attach (*l, 0, 1, 2, 3);
 141                         l = manage (new Label (string_compose ("%1", info.channels), ALIGN_START));
 142                         t->attach (*l, 1, 2, 2, 3);
 143
 144                         l = manage (new Label (_("Sample rate:"), ALIGN_END));
 145                         t->attach (*l, 0, 1, 3, 4);
 146                         l = manage (new Label (string_compose (_("%1 Hz"), info.samplerate), ALIGN_START));
 147                         t->attach (*l, 1, 2, 3, 4);
 148
 149                         l = manage (new Label (_("Duration:"), ALIGN_END));
 150                         t->attach (*l, 2, 3, 2, 3);
 151                         clock = manage (new AudioClock ("sfboxLengthClock", true, "", false, false, true, false));
 152                         clock->set_session (_session);
 153                         clock->set_mode (AudioClock::MinSec);
 154                         clock->set (info.length * src_coef + 0.5, true);
 155                         t->attach (*clock, 3, 4, 2, 3);
 156
 157                         l = manage (new Label (_("Timecode:"), ALIGN_END));
 158                         t->attach (*l, 2, 3, 3, 4);
 159                         clock = manage (new AudioClock ("sfboxTimecodeClock", true, "", false, false, false, false));
 160                         clock->set_session (_session);
 161                         clock->set_mode (AudioClock::Timecode);
 162                         clock->set (info.timecode * src_coef + 0.5, true);
 163                         t->attach (*clock, 3, 4, 3, 4);
 164                 } else {
 165                         l = manage (new Label (_("Error:"), ALIGN_END));
 166                         t->attach (*l, 0, 1, 1, 2);
 167                         l = manage (new Label (errmsg, ALIGN_START));
 168                         t->attach (*l, 1, 4, 1, 2);
 169                 }
 170
 171                 int w, h;
 172                 Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (get_pango_context ());
 173
 174                 // calc geometry of numerics
 175                 const float dbfs = accurate_coefficient_to_dB (p->peak);
 176                 const float dbtp = accurate_coefficient_to_dB (p->truepeak);
 177
 178 #define TXTSIZE(LINE, TXT, FONT) {                                     \
 179   layout->set_font_description (UIConfiguration::instance ().FONT ()); \
 180   layout->set_text (TXT);                                              \
 181   layout->get_pixel_size (w, h);                                       \
 182   if (w > mnw) { mnw = w; }                                            \
 183   if (h > lin[LINE]) { lin[LINE] = h; }                                \
 184 }
 185
 186 #define TXTWIDTH(TXT, FONT) {                                          \
 187   layout->set_font_description (UIConfiguration::instance ().FONT ()); \
 188   layout->set_text (TXT);                                              \
 189   layout->get_pixel_size (w, h);                                       \
 190   if (w > mml) { mml = w; }                                            \
 191 }
 192
 193                 int m_r = 0; // right side
 194                 int mnh = 0; // mono height
 195                 int mnw = 0; // max numeric width
 196                 int anw = 0; // spectrum annotation text width
 197
 198                 int lin[6] = { 0, 0, 0, 0, 0, 0 }; // max line height
 199
 200                 TXTSIZE(0, _("(too short integration time)"), get_SmallFont);
 201
 202                 TXTSIZE(0, _("-888"), get_SmallMonospaceFont);
 203                 anw = w;
 204                 m_r = anw + 10;
 205                 mnh = h + 1;
 206
 207                 TXTSIZE(0, _("Peak:"), get_SmallFont);
 208                 TXTSIZE(1, string_compose (_("%1 dBFS"), std::setprecision (1), std::fixed, dbfs), get_LargeFont);
 209                 TXTSIZE(2, _("True Peak:"), get_SmallFont);
 210                 TXTSIZE(3, string_compose (_("%1 dBTP"), std::setprecision (1), std::fixed, dbtp), get_LargeFont);
 211                 TXTSIZE(4, _("Normalization Gain:"), get_SmallFont);
 212                 TXTSIZE(5, _("+888.88 dB"), get_SmallMonospaceFont);
 213
 214                 TXTSIZE(0, _("Integrated Loudness:"), get_SmallFont);
 215                 TXTSIZE(1, string_compose (_("%1 LUFS"), std::setprecision (1), std::fixed, p->loudness), get_LargeFont);
 216                 TXTSIZE(2, _("Loudness Range:"), get_SmallFont);
 217                 TXTSIZE(3, string_compose (_("%1 LU"), std::setprecision (1), std::fixed, p->loudness_range), get_LargeFont);
 218
 219                 mnw += 8;
 220                 const int ht = lin[0] * 1.25 + lin[1] * 1.25 + lin[2] * 1.25 + lin[3] *1.25 + lin[4] * 1.25 + lin[5];
 221                 const int hh = std::max (100, ht + 12);
 222                 const int htn = lin[0] * 1.25 + lin[1] * 1.25 + lin[2] * 1.25 + lin[3];
 223                 int m_l =  2 * mnw + /*hist-width*/ 540 + /*box spacing*/ 8 - /*peak-width*/ 800 - m_r; // margin left
 224
 225                 int mml = 0; // min margin left -- ensure left margin is wide enough
 226                 TXTWIDTH (_("Time"), get_SmallFont);
 227                 TXTWIDTH (_("100"), get_SmallMonospaceFont);
 228                 m_l = (std::max(anw + mnh + 14, std::max (m_l, mml + 8)) + 3) & ~3;
 229
 230                 mnw = (m_l - /*hist-width*/ 540 - /*box spacing*/ 8 + /*peak-width*/ 800 + m_r) / 2;
 231                 const int nw2 = mnw / 2; // nums, horizontal center
 232
 233                 int y0[4];
 234                 if (p->normalized) {
 235                         y0[0] = (hh - ht) * .5;
 236                 } else {
 237                         y0[0] = (hh - htn) * .5;
 238                 }
 239                 y0[1] = y0[0] + lin[0] * 1.25;
 240                 y0[2] = y0[1] + lin[1] * 1.25;
 241                 y0[3] = y0[2] + lin[2] * 1.25;
 242                 y0[4] = y0[3] + lin[3] * 1.25;
 243                 y0[5] = y0[4] + lin[4] * 1.25;
 244
 245
 246                 { /* peak, loudness and R128 histogram */
 247                         Cairo::RefPtr<Cairo::ImageSurface> nums = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, mnw, hh);
 248                         Cairo::RefPtr<Cairo::ImageSurface> ebur = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, mnw, hh);
 249                         Cairo::RefPtr<Cairo::ImageSurface> hist = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, 540, hh);
 250
 251                         /* peak and true-peak numerics */
 252                         Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (nums);
 253                         cr->set_source_rgba (0, 0, 0, 1.0);
 254                         cr->paint ();
 255
 256                         layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 257                         layout->set_alignment (Pango::ALIGN_LEFT);
 258                         layout->set_text (_("Peak:"));
 259                         layout->get_pixel_size (w, h);
 260                         cr->move_to (rint (nw2 - w * .5), y0[0]);
 261                         cr->set_source_rgba (.7, .7, .7, 1.0);
 262                         layout->show_in_cairo_context (cr);
 263
 264                         layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 265                         layout->set_text (string_compose (_("%1 dBFS"), std::setprecision (1), std::fixed, dbfs));
 266                         layout->get_pixel_size (w, h);
 267                         cr->move_to (rint (nw2 - w * .5), y0[1]);
 268                         if (dbfs >= 0.f) { cr->set_source_rgba (1.0, .1, .1, 1.0); }
 269                         else if (dbfs > -1.f) { cr->set_source_rgba (1.0, .7, .0, 1.0); }
 270                         layout->show_in_cairo_context (cr);
 271
 272                         if (p->have_dbtp) {
 273                                 layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 274                                 layout->set_text (_("True Peak:"));
 275                                 layout->get_pixel_size (w, h);
 276                                 cr->move_to (rint (nw2 - w * .5), y0[2]);
 277                                 cr->set_source_rgba (.7, .7, .7, 1.0);
 278                                 layout->show_in_cairo_context (cr);
 279
 280                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 281                                 layout->set_text (string_compose (_("%1 dBTP"), std::setprecision (1), std::fixed, dbtp));
 282                                 layout->get_pixel_size (w, h);
 283                                 cr->move_to (rint (nw2 - w * .5), y0[3]);
 284                                 if (dbtp >= 0.f) { cr->set_source_rgba (1.0, .1, .1, 1.0); }
 285                                 else if (dbtp > -1.f) { cr->set_source_rgba (1.0, .7, .0, 1.0); }
 286                                 layout->show_in_cairo_context (cr);
 287                         }
 288
 289                         if (p->normalized) {
 290                                 const float ndb = accurate_coefficient_to_dB (p->norm_gain_factor);
 291                                 layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 292                                 layout->set_text (_("Normalization Gain:"));
 293                                 layout->get_pixel_size (w, h);
 294                                 cr->move_to (rint (nw2 - w * .5), y0[4]);
 295                                 cr->set_source_rgba (.7, .7, .7, 1.0);
 296                                 layout->show_in_cairo_context (cr);
 297
 298                                 layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
 299                                 layout->set_text (string_compose (_("%1 dB"), std::setprecision (2), std::showpos, std::fixed, ndb));
 300
 301                                 layout->get_pixel_size (w, h);
 302                                 cr->move_to (rint (nw2 - w * .5), y0[5]);
 303                                 // TODO tweak thresholds
 304                                 if (p->norm_gain_factor < 1.0) {
 305                                         cr->set_source_rgba (1.0, .7, .1, 1.0);
 306                                 } else if (p->norm_gain_factor == 1.0) {
 307                                         cr->set_source_rgba (.7, .7, .7, 1.0);
 308                                 } else if (fabsf (ndb) < 12) {
 309                                         cr->set_source_rgba (.1, 1.0, .1, 1.0);
 310                                 } else if (fabsf (ndb) < 18) {
 311                                         cr->set_source_rgba (1.0, .7, .1, 1.0);
 312                                 } else {
 313                                         cr->set_source_rgba (1.0, .1, .1, 1.0);
 314                                 }
 315                                 layout->show_in_cairo_context (cr);
 316                         }
 317
 318                         nums->flush ();
 319
 320                         /* EBU R128 numerics */
 321                         cr = Cairo::Context::create (ebur);
 322                         cr->set_source_rgba (0, 0, 0, 1.0);
 323                         cr->paint ();
 324
 325                         cr->set_source_rgba (.7, .7, .7, 1.0);
 326
 327                         if (!i->second->have_loudness) {
 328                                 layout->set_alignment (Pango::ALIGN_CENTER);
 329                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 330                                 layout->set_text (_("Not\nAvailable"));
 331                                 layout->get_pixel_size (w, h);
 332                                 cr->move_to (rint (nw2 - w * .5), rint ((hh - h) * .5));
 333                                 layout->show_in_cairo_context (cr);
 334                         }
 335                         else if (p->loudness == -200 && p->loudness_range == 0) {
 336                                 layout->set_alignment (Pango::ALIGN_CENTER);
 337                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 338                                 layout->set_text (_("Not\nAvailable"));
 339                                 layout->get_pixel_size (w, h);
 340                                 cr->move_to (rint (nw2 - w * .5), rint (hh * .5 - h * .66));
 341                                 layout->show_in_cairo_context (cr);
 342                                 int yy = h * .5;
 343
 344                                 layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 345                                 layout->set_text (_("(too short integration time)"));
 346                                 layout->get_pixel_size (w, h);
 347                                 cr->move_to (rint (nw2 - w * .5), rint (hh * .5 + yy));
 348                                 layout->show_in_cairo_context (cr);
 349
 350                         } else {
 351                                 layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 352                                 layout->set_alignment (Pango::ALIGN_LEFT);
 353                                 layout->set_text (_("Integrated Loudness:"));
 354                                 layout->get_pixel_size (w, h);
 355                                 cr->move_to (rint (nw2 - w * .5), y0[0]);
 356                                 layout->show_in_cairo_context (cr);
 357
 358                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 359                                 layout->set_text (string_compose (_("%1 LUFS"), std::setprecision (1), std::fixed,  p->loudness));
 360                                 layout->get_pixel_size (w, h);
 361                                 cr->move_to (rint (nw2 - w * .5), y0[1]);
 362                                 layout->show_in_cairo_context (cr);
 363
 364                                 layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 365                                 layout->set_text (_("Loudness Range:"));
 366                                 layout->get_pixel_size (w, h);
 367                                 cr->move_to (rint (nw2 - w * .5), y0[2]);
 368                                 layout->show_in_cairo_context (cr);
 369
 370                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 371                                 layout->set_text (string_compose (_("%1 LU"), std::setprecision (1), std::fixed, p->loudness_range));
 372                                 layout->get_pixel_size (w, h);
 373                                 cr->move_to (rint (nw2 - w * .5), y0[3]);
 374                                 layout->show_in_cairo_context (cr);
 375                         }
 376                         ebur->flush ();
 377
 378                         /* draw loudness histogram */
 379                         cr = Cairo::Context::create (hist);
 380                         cr->set_source_rgba (0, 0, 0, 1.0);
 381                         cr->paint ();
 382
 383                         cr->set_source_rgba (.7, .7, .7, 1.0);
 384                         cr->set_line_width (1.0);
 385
 386                         if (p->loudness_hist_max > 0 && i->second->have_loudness) {
 387                                 // draw data
 388                                 for (size_t x = 0 ; x < 510; ++x) {
 389                                         cr->move_to (x - .5, hh);
 390                                         cr->line_to (x - .5, (float) hh * (1.0 - p->loudness_hist[x] / (float) p->loudness_hist_max));
 391                                         cr->stroke ();
 392                                 }
 393
 394                                 layout->set_font_description (UIConfiguration::instance ().get_SmallerFont ());
 395                                 layout->set_alignment (Pango::ALIGN_CENTER);
 396
 397                                 // x-axis label
 398                                 layout->set_text (_("LUFS\n(short)"));
 399                                 layout->get_pixel_size (w, h);
 400                                 Gtkmm2ext::rounded_rectangle (cr, 5, 5, w + 2, h + 2, 4);
 401                                 cr->set_source_rgba (.1, .1, .1, 0.7);
 402                                 cr->fill ();
 403                                 cr->move_to (6, 6);
 404                                 cr->set_source_rgba (.9, .9, .9, 1.0);
 405                                 layout->show_in_cairo_context (cr);
 406
 407                                 // y-axis label
 408                                 layout->set_text (_("Multiplicity"));
 409                                 layout->get_pixel_size (w, h);
 410                                 Gtkmm2ext::rounded_rectangle (cr, 5, hh - w - 3, h + 2, w + 2, 4);
 411                                 cr->set_source_rgba (.1, .1, .1, 0.7);
 412                                 cr->fill ();
 413                                 cr->save ();
 414                                 cr->move_to (6, hh - 2);
 415                                 cr->set_source_rgba (.9, .9, .9, 1.0);
 416                                 cr->rotate (M_PI / -2.0);
 417                                 layout->show_in_cairo_context (cr);
 418                                 cr->restore ();
 419
 420                                 // x-Axis labels
 421                                 layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
 422                                 layout->set_alignment (Pango::ALIGN_LEFT);
 423                                 for (int g = -53; g <= -8; g += 5) {
 424                                         // grid-lines. [110] -59LUFS .. [650]: -5 LUFS
 425                                         layout->set_text (string_compose ("%1", std::setw(3), std::setfill(' '), g));
 426                                         layout->get_pixel_size (w, h);
 427
 428                                         cr->set_operator (Cairo::OPERATOR_OVER);
 429                                         Gtkmm2ext::rounded_rectangle (cr,
 430                                                         rint ((g + 59.0) * 10.0 - h * .5), 5,
 431                                                         h + 2, w + 2, 4);
 432                                         const float pk = (g + 59.0) / 54.0;
 433                                         ArdourCanvas::Color c = ArdourCanvas::hsva_to_color (252 - 260 * pk, .9, .3 + pk * .4, .6);
 434                                         ArdourCanvas::set_source_rgba (cr, c);
 435                                         cr->fill ();
 436
 437                                         cr->save ();
 438                                         cr->set_source_rgba (.9, .9, .9, 1.0);
 439                                         cr->move_to (rint ((g + 59.0) * 10.0 - h * .5), w + 6.0);
 440                                         cr->rotate (M_PI / -2.0);
 441                                         layout->show_in_cairo_context (cr);
 442                                         cr->restore ();
 443
 444                                         cr->set_operator (Cairo::OPERATOR_ADD);
 445                                         cr->save ();
 446                                         cr->set_source_rgba (.3, .3, .3, 1.0);
 447                                         cr->set_dash (dashes, 1.0);
 448                                         cr->set_line_cap (Cairo::LINE_CAP_ROUND);
 449                                         cr->move_to (rint ((g + 59.0) * 10.0) + .5, w + 8.0);
 450                                         cr->line_to (rint ((g + 59.0) * 10.0) + .5, hh);
 451                                         cr->stroke ();
 452                                         cr->restore ();
 453                                 }
 454
 455                         } else {
 456                                 layout->set_alignment (Pango::ALIGN_CENTER);
 457                                 layout->set_font_description (UIConfiguration::instance ().get_LargeFont ());
 458                                 layout->set_text (_("Not\nAvailable"));
 459                                 layout->get_pixel_size (w, h);
 460                                 cr->move_to (rint ((510 - w) * .5), rint ((hh - h) * .5));
 461                                 layout->show_in_cairo_context (cr);
 462                         }
 463
 464                         hist->flush ();
 465
 466                         CimgArea *nu = manage (new CimgArea (nums));
 467                         CimgArea *eb = manage (new CimgArea (ebur));
 468                         CimgArea *hi = manage (new CimgArea (hist));
 469                         HBox *hb = manage (new HBox ());
 470                         hb->set_spacing (4);
 471                         hb->pack_start (*nu, false, false);
 472                         hb->pack_start (*hi, false, false);
 473                         hb->pack_start (*eb, false, false);
 474
 475                         wtbl->attach (*hb, 0, 2, wrow, wrow + 1, SHRINK, SHRINK);
 476                         ++wrow;
 477                 }
 478
 479 #define XAXISLABEL(POS, TXT) {                            \
 480   const float yy = rint (POS);                            \
 481   layout->set_text (TXT);                                 \
 482   layout->get_pixel_size (w, h);                          \
 483   cr->move_to (m_l - 8 - w, rint ((POS) - h * .5));       \
 484   cr->set_source_rgba (.9, .9, .9, 1.0);                  \
 485   cr->set_operator (Cairo::OPERATOR_OVER);                \
 486   layout->show_in_cairo_context (cr);                     \
 487   cr->move_to (m_l - 4, yy - .5);                         \
 488   cr->line_to (m_l + width, yy - .5);                     \
 489   cr->set_source_rgba (.3, .3, .3, 1.0);                  \
 490   cr->set_operator (Cairo::OPERATOR_ADD);                 \
 491   cr->stroke ();                                          \
 492 }
 493
 494
 495                 {
 496                         VBox *lrb = manage (new VBox());
 497                         ToggleButton *log = manage (new ToggleButton (S_("Logscale|Lg")));
 498                         ToggleButton *rec = manage (new ToggleButton (S_("Rectified|Rf")));
 499                         lrb->pack_start (*log, false, false, 5);
 500                         lrb->pack_end (*rec, false, false, 5);
 501                         log->signal_toggled ().connect (sigc::bind (sigc::mem_fun (*this, &ExportReport::on_logscale_toggled), log));
 502                         rec->signal_toggled ().connect (sigc::bind (sigc::mem_fun (*this, &ExportReport::on_rectivied_toggled), rec));
 503                         lrb->show_all ();
 504                         wtbl->attach (*lrb, 1, 2, wrow, wrow + p->n_channels, SHRINK, SHRINK);
 505                 }
 506
 507                 for (uint32_t c = 0; c < p->n_channels; ++c) {
 508                         /* draw waveform */
 509                         const size_t width = sizeof (p->peaks) / sizeof (ARDOUR::PeakData::PeakDatum) / 4;
 510
 511                         Cairo::RefPtr<Cairo::ImageSurface> wave;
 512                         Cairo::RefPtr<Cairo::ImageSurface> wave_log;
 513                         Cairo::RefPtr<Cairo::ImageSurface> wave_rect;
 514                         Cairo::RefPtr<Cairo::ImageSurface> wave_lr;
 515                         draw_waveform(wave, p, c, m_l, width, anw, lin[0], false, false);
 516                         draw_waveform(wave_log, p, c, m_l, width, anw, lin[0], true, false);
 517                         draw_waveform(wave_rect, p, c, m_l, width, anw, lin[0], false, true);
 518                         draw_waveform(wave_lr, p, c, m_l, width, anw, lin[0], true, true);
 519
 520                         CimgWaveArea *wv = manage (new CimgWaveArea (wave, wave_log, wave_rect, wave_lr, m_l, width));
 521
 522                         playhead_widgets.push_back (wv);
 523                         waves.push_back (wv);
 524                         wv->seek_playhead.connect (sigc::bind<0> (sigc::mem_fun (*this, &ExportReport::audition_seek), page));
 525                         wtbl->attach (*wv, 0, 1, wrow, wrow + 1, SHRINK, SHRINK);
 526                         ++wrow;
 527                 }
 528
 529                 if (channels > 0 && file_length > 0 && sample_rate > 0)
 530                 {
 531                         /* Time Axis  -- re-use waveform width */
 532                         const size_t width = sizeof (p->peaks) / sizeof (ARDOUR::PeakData::PeakDatum) / 4;
 533                         layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
 534                         layout->set_text (_("00:00:00.000"));
 535                         layout->get_pixel_size (w, h);
 536                         int height = h * 1.75;
 537                         Cairo::RefPtr<Cairo::ImageSurface> ytme = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, m_l + width, height);
 538                         Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (ytme);
 539                         cr->set_operator (Cairo::OPERATOR_SOURCE);
 540                         cr->set_source_rgba (0, 0, 0, 1.0);
 541                         cr->paint ();
 542                         cr->rectangle (0, 0, m_l, height);
 543                         cr->set_source_rgba (0, 0, 0, 0);
 544                         cr->fill ();
 545                         cr->set_operator (Cairo::OPERATOR_OVER);
 546
 547                         cr->set_line_width (1.0);
 548                         for (int i = 0; i <= 4; ++i) {
 549                                 const float fract = (float) i / 4.0;
 550                                 // " XX:XX:XX.XXX"  [space/minus] 12 chars = 13.
 551                                 const float xalign = (i == 4) ? 1.0 : (i == 0) ? 1.0 / 13.0 : 7.0 / 13.0;
 552
 553                                 char buf[16];
 554                                 AudioClock::print_minsec (start_off + file_length * fract,
 555                                                 buf, sizeof (buf), sample_rate);
 556
 557                                 layout->set_text (buf);
 558                                 layout->get_pixel_size (w, h);
 559                                 cr->move_to (rint (m_l + width * fract - w * xalign), rint (.5 * (height - h)));
 560                                 cr->set_source_rgba (.9, .9, .9, 1.0);
 561                                 layout->show_in_cairo_context (cr);
 562
 563                                 cr->set_source_rgba (.7, .7, .7, 1.0);
 564                                 cr->move_to (rint (m_l + width * fract) - .5, 0);
 565                                 cr->line_to (rint (m_l + width * fract) - .5, ceil  (height * .15));
 566                                 cr->move_to (rint (m_l + width * fract) - .5, floor (height * .85));
 567                                 cr->line_to (rint (m_l + width * fract) - .5, height);
 568                                 cr->stroke ();
 569                         }
 570
 571                         layout->set_font_description (UIConfiguration::instance ().get_SmallFont ());
 572                         layout->set_text (_("Time"));
 573                         cr->set_source_rgba (.9, .9, .9, 1.0);
 574                         layout->get_pixel_size (w, h);
 575                         cr->move_to (rint (m_l - w - 8), rint (.5 * (height - h)));
 576                         layout->show_in_cairo_context (cr);
 577
 578                         ytme->flush ();
 579                         CimgPlayheadArea *tm = manage (new CimgPlayheadArea (ytme, m_l, width, true));
 580                         playhead_widgets.push_back (tm);
 581                         tm->seek_playhead.connect (sigc::bind<0> (sigc::mem_fun (*this, &ExportReport::audition_seek), page));
 582                         wtbl->attach (*tm, 0, 1, wrow, wrow + 1, SHRINK, SHRINK);
 583                         ++wrow;
 584                 }
 585
 586                 {
 587                         /* Draw Spectrum */
 588                         const size_t swh = sizeof (p->spectrum) / sizeof (float);
 589                         const size_t height = sizeof (p->spectrum[0]) / sizeof (float);
 590                         const size_t width = swh / height;
 591
 592                         Cairo::RefPtr<Cairo::ImageSurface> spec = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, m_l + width, height);
 593                         Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (spec);
 594                         cr->set_operator (Cairo::OPERATOR_SOURCE);
 595                         cr->rectangle (0, 0, m_l, height);
 596                         cr->set_source_rgba (0, 0, 0, 0);
 597                         cr->fill ();
 598                         cr->rectangle (m_l, 0, width, height);
 599                         cr->set_source_rgba (0, 0, 0, 1.0);
 600                         cr->fill ();
 601                         cr->set_operator (Cairo::OPERATOR_OVER);
 602
 603                         for (size_t x = 0 ; x < width; ++x) {
 604                                 for (size_t y = 0 ; y < height; ++y) {
 605                                         const float pk = p->spectrum[x][y];
 606                                         ArdourCanvas::Color c = ArdourCanvas::hsva_to_color (252 - 260 * pk, .9, sqrt(pk));
 607                                         ArdourCanvas::set_source_rgba (cr, c);
 608                                         cr->rectangle (m_l + x - .5, y - .5, 1, 1);
 609                                         cr->fill ();
 610                                 }
 611                         }
 612
 613                         // Unit
 614                         layout->set_font_description (UIConfiguration::instance ().get_SmallerFont ());
 615                         layout->set_text (_("Hz"));
 616                         layout->get_pixel_size (w, h);
 617                         cr->move_to (rint (m_l - h - anw - 10), rint ((height + w) * .5));
 618                         cr->set_source_rgba (.9, .9, .9, 1.0);
 619                         cr->save ();
 620                         cr->rotate (M_PI / -2.0);
 621                         layout->show_in_cairo_context (cr);
 622                         cr->restore ();
 623
 624                         // x-Axis
 625                         cr->set_line_width (1.0);
 626                         cr->set_dash (dashes, 2.0);
 627                         cr->set_line_cap (Cairo::LINE_CAP_ROUND);
 628
 629                         layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
 630                         //XAXISLABEL (p->freq[0], _("50Hz"));
 631                         XAXISLABEL (p->freq[1], _("100"));
 632                         XAXISLABEL (p->freq[2], _("500"));
 633                         XAXISLABEL (p->freq[3], _("1K"));
 634                         XAXISLABEL (p->freq[4], _("5K"));
 635                         XAXISLABEL (p->freq[5], _("10K"));
 636                         spec->flush ();
 637
 638                         // annotations
 639                         Cairo::RefPtr<Cairo::ImageSurface> scale = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, m_r, height);
 640                         cr = Cairo::Context::create (scale);
 641                         cr->set_operator (Cairo::OPERATOR_SOURCE);
 642                         cr->rectangle (0, 0, m_r, height);
 643                         cr->set_source_rgba (0, 0, 0, 0);
 644                         cr->fill ();
 645
 646                         cr->set_operator (Cairo::OPERATOR_OVER);
 647                         layout->set_font_description (UIConfiguration::instance ().get_SmallerFont ());
 648                         layout->set_alignment (Pango::ALIGN_LEFT);
 649                         layout->set_text (_("dBFS"));
 650                         layout->get_pixel_size (w, h);
 651                         cr->move_to (rint (.5 * (m_r - w)), height - h - 2);
 652                         cr->set_source_rgba (.9, .9, .9, 1.0);
 653                         layout->show_in_cairo_context (cr);
 654
 655                         int innertop = ceil (mnh * .5) + 1;
 656                         size_t innerheight = (height - 2 * innertop - h - 2);
 657
 658                         cr->rectangle (1, innertop - 1,  m_r - 2 - anw, innerheight + 2);
 659                         cr->set_source_rgba (0, 0, 0, 1.0);
 660                         cr->fill_preserve ();
 661                         cr->set_line_width (1.0);
 662                         cr->set_source_rgba (.7, .7, .6, 1.0);
 663                         cr->stroke ();
 664
 665                         for (size_t y = 0 ; y < innerheight - 2; ++y) {
 666                                         const float pk = 1.0 - (float) y / innerheight;
 667                                         ArdourCanvas::Color c = ArdourCanvas::hsva_to_color (252 - 260 * pk, .9, sqrt(pk));
 668                                         ArdourCanvas::set_source_rgba (cr, c);
 669                                         cr->rectangle (2, innertop + y + .5, m_r - 4 - anw, 1);
 670                                         cr->fill ();
 671                         }
 672
 673                         layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
 674                         for (int i = 0; i <= 4; ++i) {
 675                                 const float fract = (float) i / 4.0;
 676                                 const float yalign = .5; // (i == 4) ? 0 : (i == 0) ? 1.0 : .5;
 677                                 char buf[16];
 678                                 snprintf (buf, sizeof (buf), "%.0f", AudioGrapher::Analyser::fft_range_db * -fract);
 679                                 layout->set_text (buf);
 680                                 layout->get_pixel_size (w, h);
 681
 682                                 cr->move_to (m_r - anw, rint (innertop + fract * innerheight - h * yalign));
 683                                 cr->set_source_rgba (.9, .9, .9, 1.0);
 684                                 layout->show_in_cairo_context (cr);
 685                         }
 686                         scale->flush ();
 687
 688                         CimgPlayheadArea *sp = manage (new CimgPlayheadArea (spec, m_l, width));
 689                         playhead_widgets.push_back (sp);
 690                         sp->seek_playhead.connect (sigc::bind<0> (sigc::mem_fun (*this, &ExportReport::audition_seek), page));
 691                         CimgArea *an = manage (new CimgArea (scale));
 692                         wtbl->attach (*sp, 0, 1, wrow, wrow + 1, SHRINK, SHRINK);
 693                         wtbl->attach (*an, 1, 2, wrow, wrow + 1, SHRINK, SHRINK);
 694                         ++wrow;
 695                 }
 696
 697                 timeline[page] = playhead_widgets;
 698
 699                 HBox *tab = manage (new HBox ());
 700                 l = manage (new Label (Glib::path_get_basename (path)));
 701                 Gtk::Image *img =  manage (new Image (Stock::MEDIA_PLAY, ICON_SIZE_MENU));
 702                 tab->pack_start (*img);
 703                 tab->pack_start (*l);
 704                 l->show();
 705                 tab->show();
 706                 img->hide();
 707                 pages.pages ().push_back (Notebook_Helpers::TabElem (*vb, *tab));
 708                 pages.signal_switch_page().connect (sigc::mem_fun (*this, &ExportReport::on_switch_page));
 709         }
 710
 711         pages.set_show_tabs (true);
 712         pages.show_all ();
 713         pages.set_name ("ExportReportNotebook");
 714         pages.set_current_page (0);
 715
 716         get_vbox ()->set_spacing (4);
 717         get_vbox ()->pack_start (pages, false, false);
 718
 719         if (_session) {
 720                 _session->AuditionActive.connect(auditioner_connections, invalidator (*this), boost::bind (&ExportReport::audition_active, this, _1), gui_context());
 721                 _session->the_auditioner()->AuditionProgress.connect(auditioner_connections, invalidator (*this), boost::bind (&ExportReport::audition_progress, this, _1, _2), gui_context());
 722         }
 723
 724         play_btn = add_button (Stock::MEDIA_PLAY, RESPONSE_ACCEPT);
 725         stop_btn = add_button (Stock::MEDIA_STOP, RESPONSE_ACCEPT);
 726         add_button (Stock::CLOSE, RESPONSE_CLOSE);
 727
 728         set_default_response (RESPONSE_CLOSE);
 729         stop_btn->signal_clicked().connect (sigc::mem_fun (*this, &ExportReport::stop_audition));
 730         play_btn->signal_clicked().connect (sigc::mem_fun (*this, &ExportReport::play_audition));
 731         stop_btn->set_sensitive (false);
 732         show_all ();
 733 }
 734
 735 int
 736 ExportReport::run ()
 737 {
 738         do {
 739                 int i = ArdourDialog::run ();
 740                 if (i == Gtk::RESPONSE_DELETE_EVENT || i == RESPONSE_CLOSE) {
 741                         break;
 742                 }
 743         } while (1);
 744
 745         if (_session) {
 746                 _session->cancel_audition();
 747         }
 748         return RESPONSE_CLOSE;
 749 }
 750
 751 void
 752 ExportReport::open_folder (std::string p)
 753 {
 754         PBD::open_uri (Glib::path_get_dirname(p));
 755 }
 756
 757 void
 758 ExportReport::audition_active (bool active)
 759 {
 760         stop_btn->set_sensitive (active);
 761         play_btn->set_sensitive (!active);
 762
 763         if (!active && _audition_num == _page_num && timeline.find (_audition_num) != timeline.end ()) {
 764                 for (std::list<CimgPlayheadArea*>::const_iterator i = timeline[_audition_num].begin();
 765                                 i != timeline[_audition_num].end();
 766                                 ++i) {
 767                         (*i)->set_playhead (-1);
 768                 }
 769         }
 770
 771         if (_audition_num >= 0 ) {
 772                 Widget *page = pages.get_nth_page (_audition_num);
 773                 HBox *box = static_cast<Gtk::HBox*> (pages.get_tab_label (*page));
 774                 if (!active) {
 775                         (*(box->get_children().begin()))->hide ();
 776                 } else {
 777                         (*(box->get_children().begin()))->show ();
 778                 }
 779         }
 780
 781         if (!active) {
 782                 _audition_num = -1;
 783         }
 784 }
 785
 786 void
 787 ExportReport::audition (std::string path, unsigned n_chn, int page)
 788 {
 789         assert (_session);
 790         _session->cancel_audition();
 791
 792         if (n_chn ==0) { return; }
 793
 794         /* can't really happen, unless the user replaces the file while the dialog is open.. */
 795         if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
 796                 PBD::warning << string_compose(_("Could not read file: %1 (%2)."), path, strerror(errno)) << endmsg;
 797                 return;
 798         }
 799         if (SMFSource::valid_midi_file (path)) { return; }
 800
 801         boost::shared_ptr<Region> r;
 802         SourceList srclist;
 803         boost::shared_ptr<AudioFileSource> afs;
 804         bool old_sbp = AudioSource::get_build_peakfiles ();
 805
 806         /* don't even think of building peakfiles for these files */
 807         AudioSource::set_build_peakfiles (false);
 808
 809         for (unsigned int n = 0; n < n_chn; ++n) {
 810                 try {
 811                         afs = boost::dynamic_pointer_cast<AudioFileSource> (
 812                                 SourceFactory::createExternal (DataType::AUDIO, *_session,
 813                                                                                  path, n,
 814                                                                                  Source::Flag (ARDOUR::AudioFileSource::NoPeakFile), false));
 815                         if (afs->sample_rate() != _session->nominal_frame_rate()) {
 816                                 boost::shared_ptr<SrcFileSource> sfs (new SrcFileSource(*_session, afs, ARDOUR::SrcGood));
 817                                 srclist.push_back(sfs);
 818                         } else {
 819                                 srclist.push_back(afs);
 820                         }
 821                 } catch (failed_constructor& err) {
 822                         PBD::error << _("Could not access soundfile: ") << path << endmsg;
 823                         AudioSource::set_build_peakfiles (old_sbp);
 824                         return;
 825                 }
 826         }
 827
 828         AudioSource::set_build_peakfiles (old_sbp);
 829
 830         if (srclist.empty()) {
 831                 return;
 832         }
 833
 834         afs = boost::dynamic_pointer_cast<AudioFileSource> (srclist[0]);
 835         std::string rname = region_name_from_path (afs->path(), false);
 836
 837         PBD::PropertyList plist;
 838
 839         plist.add (ARDOUR::Properties::start, 0);
 840         plist.add (ARDOUR::Properties::length, srclist[0]->length(srclist[0]->timeline_position()));
 841         plist.add (ARDOUR::Properties::name, rname);
 842         plist.add (ARDOUR::Properties::layer, 0);
 843
 844         r = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (srclist, plist, false));
 845
 846         r->set_position(0);
 847         _session->audition_region(r);
 848         _audition_num = page;
 849 }
 850
 851 void
 852 ExportReport::play_audition ()
 853 {
 854         if (_audition_num >= 0 || !_session) { return; }
 855         if (files.find (_page_num) == files.end()) { return; }
 856         audition (files[_page_num].path, files[_page_num].channels, _page_num);
 857 }
 858
 859 void
 860 ExportReport::stop_audition ()
 861 {
 862         if (_audition_num == _page_num && timeline.find (_audition_num) != timeline.end ()) {
 863                 for (std::list<CimgPlayheadArea*>::const_iterator i = timeline[_audition_num].begin();
 864                                 i != timeline[_audition_num].end();
 865                                 ++i) {
 866                         (*i)->set_playhead (-1);
 867                 }
 868         }
 869         if (_session) {
 870                 _session->cancel_audition();
 871         }
 872 }
 873
 874 void
 875 ExportReport::on_switch_page (GtkNotebookPage*, guint page_num)
 876 {
 877         if (_audition_num == _page_num) {
 878                 for (std::list<CimgPlayheadArea*>::const_iterator i = timeline[_audition_num].begin();
 879                                 i != timeline[_audition_num].end();
 880                                 ++i) {
 881                         (*i)->set_playhead (-1);
 882                 }
 883         }
 884         _page_num = page_num;
 885 }
 886
 887 void
 888 ExportReport::audition_progress (framecnt_t pos, framecnt_t len)
 889 {
 890         if (_audition_num == _page_num && timeline.find (_audition_num) != timeline.end ()) {
 891                 const float p = (float)pos / len;
 892                 for (std::list<CimgPlayheadArea*>::const_iterator i = timeline[_audition_num].begin();
 893                                 i != timeline[_audition_num].end();
 894                                 ++i) {
 895                         (*i)->set_playhead (p);
 896                 }
 897         }
 898 }
 899
 900 void
 901 ExportReport::audition_seek (int page, float pos)
 902 {
 903         if (_audition_num == page && _session) {
 904                 _session->the_auditioner()->seek_to_percent (100.f * pos);
 905         }
 906 }
 907
 908 void
 909 ExportReport::on_logscale_toggled (Gtk::ToggleButton* b)
 910 {
 911         bool en = b->get_active ();
 912         for (std::list<CimgWaveArea*>::iterator i = waves.begin (); i != waves.end (); ++i) {
 913                 (*i)->set_logscale (en);
 914         }
 915 }
 916
 917 void
 918 ExportReport::on_rectivied_toggled (Gtk::ToggleButton* b)
 919 {
 920         bool en = b->get_active ();
 921         for (std::list<CimgWaveArea*>::iterator i = waves.begin (); i != waves.end (); ++i) {
 922                 (*i)->set_rectified (en);
 923         }
 924 }
 925
 926 void
 927 ExportReport::draw_waveform (Cairo::RefPtr<Cairo::ImageSurface>& wave, ExportAnalysisPtr p, uint32_t c, int m_l, size_t width, int anw, int height, bool log, bool rect)
 928 {
 929         int w, h;
 930         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create (get_pango_context ());
 931         const float height_2 = std::min (100, 8 * height / (int) p->n_channels); // TODO refine
 932         const float ht = 2.f * height_2;
 933
 934         std::vector<double> dashes;
 935         dashes.push_back (3.0);
 936         dashes.push_back (5.0);
 937
 938         wave = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, m_l + width, ht);
 939         Cairo::RefPtr<Cairo::Context> cr = Cairo::Context::create (wave);
 940         cr->set_operator (Cairo::OPERATOR_SOURCE);
 941         cr->rectangle (0, 0, m_l, ht);
 942         cr->set_source_rgba (0, 0, 0, 0);
 943         cr->fill ();
 944         cr->rectangle (m_l, 0, width, ht);
 945         cr->set_source_rgba (0, 0, 0, 1.0);
 946         cr->fill ();
 947         cr->set_operator (Cairo::OPERATOR_OVER);
 948
 949         cr->set_source_rgba (.7, .7, .7, 1.0);
 950         cr->set_line_width (1.0);
 951
 952         // -1dB range
 953         float clip_top;
 954         float clip_bot;
 955
 956         if (rect) {
 957                 clip_bot = ht;
 958
 959                 if (log) {
 960                         clip_top = ht * (1.f - alt_log_meter (-1));
 961                         for (size_t x = 0 ; x < width; ++x) {
 962                                 const float v = alt_log_meter (fast_coefficient_to_dB (std::max (fabsf (p->peaks[c][x].max), fabsf (p->peaks[c][x].min))));
 963                                 cr->move_to (m_l + x - .5, ht - ht * v);
 964                                 cr->line_to (m_l + x - .5, ht);
 965                         }
 966                         cr->stroke ();
 967                 } else {
 968                         clip_top = ht * (1.f - dB_to_coefficient (-1));
 969                         for (size_t x = 0 ; x < width; ++x) {
 970                                 const float v = std::max (fabsf (p->peaks[c][x].max), fabsf (p->peaks[c][x].min));
 971                                 cr->move_to (m_l + x - .5, ht - ht * v);
 972                                 cr->line_to (m_l + x - .5, ht);
 973                         }
 974                         cr->stroke ();
 975                 }
 976         } else {
 977                 if (log) {
 978                         clip_top = height_2 - height_2 * alt_log_meter (-1);
 979                         clip_bot = height_2 + height_2 * alt_log_meter (-1);
 980                         for (size_t x = 0 ; x < width; ++x) {
 981                                 float pmax, pmin;
 982                                 if (p->peaks[c][x].max > 0) {
 983                                         pmax =  alt_log_meter (fast_coefficient_to_dB (p->peaks[c][x].max));
 984                                 } else {
 985                                         pmax = -alt_log_meter (fast_coefficient_to_dB (-p->peaks[c][x].max));
 986                                 }
 987
 988                                 if (p->peaks[c][x].min > 0) {
 989                                         pmin =  alt_log_meter (fast_coefficient_to_dB (p->peaks[c][x].min));
 990                                 } else {
 991                                         pmin = -alt_log_meter (fast_coefficient_to_dB (-p->peaks[c][x].min));
 992                                 }
 993                                 cr->move_to (m_l + x - .5, height_2 - height_2 * pmax);
 994                                 cr->line_to (m_l + x - .5, height_2 - height_2 * pmin);
 995                         }
 996                         cr->stroke ();
 997                 } else {
 998                         clip_top = height_2 - height_2 * dB_to_coefficient (-1);
 999                         clip_bot = height_2 + height_2 * dB_to_coefficient (-1);
1000                         for (size_t x = 0 ; x < width; ++x) {
1001                                 cr->move_to (m_l + x - .5, height_2 - height_2 * p->peaks[c][x].max);
1002                                 cr->line_to (m_l + x - .5, height_2 - height_2 * p->peaks[c][x].min);
1003                         }
1004                         cr->stroke ();
1005                 }
1006         }
1007
1008         // > 0dBFS
1009         cr->set_source_rgba (1.0, 0, 0, 1.0);
1010         for (size_t x = 0 ; x < width; ++x) {
1011                 if (p->peaks[c][x].max >= 1.0) {
1012                         cr->move_to (m_l + x - .5, 0);
1013                         cr->line_to (m_l + x - .5, clip_top);
1014                 }
1015                 if (p->peaks[c][x].min <= -1.0) {
1016                         cr->move_to (m_l + x - .5, clip_bot);
1017                         cr->line_to (m_l + x - .5, ht);
1018                 }
1019         }
1020         cr->stroke ();
1021
1022         // > -1dBTP
1023         cr->set_source_rgba (1.0, 0.7, 0, 0.7);
1024         for (std::set<framepos_t>::const_iterator i = p->truepeakpos[c].begin (); i != p->truepeakpos[c].end (); ++i) {
1025                 cr->move_to (m_l + (*i) - .5, clip_top);
1026                 cr->line_to (m_l + (*i) - .5, clip_bot);
1027                 cr->stroke ();
1028         }
1029
1030         if (!rect) {
1031                 // zero line
1032                 cr->set_source_rgba (.3, .3, .3, 0.7);
1033                 cr->move_to (m_l + 0, height_2 - .5);
1034                 cr->line_to (m_l + width, height_2 - .5);
1035                 cr->stroke ();
1036         }
1037
1038         // Unit
1039         layout->set_font_description (UIConfiguration::instance ().get_SmallerFont ());
1040         layout->set_alignment (Pango::ALIGN_LEFT);
1041         layout->set_text (_("dBFS"));
1042         layout->get_pixel_size (w, h);
1043         cr->move_to (rint (m_l - h - anw - 10), rint (height_2 + w * .5));
1044         cr->set_source_rgba (.9, .9, .9, 1.0);
1045         cr->save ();
1046         cr->rotate (M_PI / -2.0);
1047         layout->show_in_cairo_context (cr);
1048         cr->restore ();
1049
1050         // x-Axis
1051         cr->set_line_width (1.0);
1052         cr->set_dash (dashes, 2.0);
1053         cr->set_line_cap (Cairo::LINE_CAP_ROUND);
1054
1055         layout->set_font_description (UIConfiguration::instance ().get_SmallMonospaceFont ());
1056
1057         if (rect) {
1058                 if (log) {
1059                         XAXISLABEL ((ht - ht * alt_log_meter (-36)), _("-36"));
1060                         XAXISLABEL ((ht - ht * alt_log_meter (-18)), _("-18"));
1061                         XAXISLABEL ((ht - ht * alt_log_meter (-9)), _("-9"));
1062                         XAXISLABEL ((ht - ht * alt_log_meter (-3)), _("-3"));
1063                 } else {
1064                         XAXISLABEL ((ht - ht * .1259), _("-18"));
1065                         XAXISLABEL ((ht - ht * .3548), _("-9"));
1066                         XAXISLABEL ((ht - ht * .7079), _("-3"));
1067                 }
1068         } else {
1069                 if (log) {
1070                         XAXISLABEL ((height_2 - height_2 * alt_log_meter (-18)), _("-18"));
1071                         XAXISLABEL ((height_2 - height_2 * alt_log_meter (-9)), _("-9"));
1072                         XAXISLABEL ((height_2 - height_2 * alt_log_meter (-3)), _("-3"));
1073                         XAXISLABEL ((height_2 + height_2 * alt_log_meter (-18)), _("-18"));
1074                         XAXISLABEL ((height_2 + height_2 * alt_log_meter (-9)), _("-9"));
1075                         XAXISLABEL ((height_2 + height_2 * alt_log_meter (-3)), _("-3"));
1076                 } else {
1077                         XAXISLABEL (height_2 * 0.6452, _("-9"));
1078                         XAXISLABEL (height_2 * 1.3548, _("-9"));
1079                         XAXISLABEL (height_2 * 0.2921, _("-3"));
1080                         XAXISLABEL (height_2 * 1.7079, _("-3"));
1081                 }
1082         }
1083         wave->flush ();
1084 }