gtk2_ardour/generic_pluginui.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <climits>
  25 #include <cerrno>
  26 #include <cmath>
  27 #include <string>
  28 #include <vector>
  29
  30 #include "pbd/stl_delete.h"
  31 #include "pbd/xml++.h"
  32 #include "pbd/failed_constructor.h"
  33
  34 #include <gtkmm2ext/click_box.h>
  35 #include <gtkmm2ext/fastmeter.h>
  36 #include <gtkmm2ext/barcontroller.h>
  37 #include <gtkmm2ext/utils.h>
  38 #include <gtkmm2ext/doi.h>
  39 #include <gtkmm2ext/slider_controller.h>
  40
  41 #include "ardour/plugin.h"
  42 #include "ardour/plugin_insert.h"
  43 #include "ardour/session.h"
  44 #ifdef LV2_SUPPORT
  45 #include "ardour/lv2_plugin.h"
  46 #endif
  47
  48 #include "ardour_ui.h"
  49 #include "prompter.h"
  50 #include "plugin_ui.h"
  51 #include "gui_thread.h"
  52 #include "automation_controller.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtkmm2ext;
  60 using namespace Gtk;
  61
  62 GenericPluginUI::GenericPluginUI (boost::shared_ptr<PluginInsert> pi, bool scrollable)
  63         : PlugUIBase (pi),
  64           button_table (initial_button_rows, initial_button_cols),
  65           output_table (initial_output_rows, initial_output_cols),
  66           hAdjustment(0.0, 0.0, 0.0),
  67           vAdjustment(0.0, 0.0, 0.0),
  68           scroller_view(hAdjustment, vAdjustment),
  69           automation_menu (0),
  70           is_scrollable(scrollable)
  71 {
  72         set_name ("PluginEditor");
  73         set_border_width (10);
  74         //set_homogeneous (false);
  75
  76         pack_start (main_contents, true, true);
  77         settings_box.set_homogeneous (false);
  78
  79         HBox* constraint_hbox = manage (new HBox);
  80         HBox* smaller_hbox = manage (new HBox);
  81         smaller_hbox->set_spacing (4);
  82         Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
  83         combo_label->set_use_markup (true);
  84
  85         latency_button.add (latency_label);
  86         latency_button.signal_clicked().connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
  87         set_latency_label ();
  88
  89         smaller_hbox->pack_start (latency_button, false, false, 10);
  90         smaller_hbox->pack_start (_preset_combo, false, false);
  91         smaller_hbox->pack_start (_preset_modified, false, false);
  92         smaller_hbox->pack_start (add_button, false, false);
  93         smaller_hbox->pack_start (save_button, false, false);
  94         smaller_hbox->pack_start (delete_button, false, false);
  95         smaller_hbox->pack_start (bypass_button, false, true);
  96
  97         constraint_hbox->set_spacing (5);
  98         constraint_hbox->set_homogeneous (false);
  99
 100         VBox* v1_box = manage (new VBox);
 101         VBox* v2_box = manage (new VBox);
 102         pack_end (plugin_analysis_expander, false, false);
 103         if (!plugin->get_docs().empty()) {
 104                 pack_end (description_expander, false, false);
 105         }
 106
 107         v1_box->pack_start (*smaller_hbox, false, true);
 108         v2_box->pack_start (focus_button, false, true);
 109
 110         main_contents.pack_start (settings_box, false, false);
 111
 112         constraint_hbox->pack_end (*v2_box, false, false);
 113         constraint_hbox->pack_end (*v1_box, false, false);
 114
 115         main_contents.pack_start (*constraint_hbox, false, false);
 116
 117         if (is_scrollable ) {
 118                 scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 119                 scroller.set_name ("PluginEditor");
 120                 scroller_view.set_name("PluginEditor");
 121                 scroller_view.add (hpacker);
 122                 scroller.add (scroller_view);
 123
 124                 main_contents.pack_start (scroller, true, true);
 125
 126         } else {
 127                 main_contents.pack_start (hpacker, false, false);
 128         }
 129
 130         pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
 131
 132         bypass_button.set_active (!pi->active());
 133
 134         prefheight = 0;
 135         build ();
 136 }
 137
 138 GenericPluginUI::~GenericPluginUI ()
 139 {
 140         if (output_controls.size() > 0) {
 141                 screen_update_connection.disconnect();
 142         }
 143 }
 144
 145 // Some functions for calculating the 'similarity' of two plugin
 146 // control labels.
 147
 148 static int get_number(string label) {
 149 static const char *digits = "0123456789";
 150 int value = -1;
 151
 152         std::size_t first_digit_pos = label.find_first_of(digits);
 153         if (first_digit_pos != string::npos) {
 154                 // found some digits: there's a number in there somewhere
 155                 stringstream s;
 156                 s << label.substr(first_digit_pos);
 157                 s >> value;
 158         }
 159         return value;
 160 }
 161
 162 static int match_or_digit(char c1, char c2) {
 163         return c1 == c2 || (isdigit(c1) && isdigit(c2));
 164 }
 165
 166 static std::size_t matching_chars_at_head(const string s1, const string s2) {
 167 std::size_t length, n = 0;
 168
 169         length = min(s1.length(), s2.length());
 170         while (n < length) {
 171                 if (!match_or_digit(s1[n], s2[n]))
 172                         break;
 173                 n++;
 174         }
 175         return n;
 176 }
 177
 178 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
 179 std::size_t s1pos, s2pos, n = 0;
 180
 181         s1pos = s1.length();
 182         s2pos = s2.length();
 183         while (s1pos-- > 0 && s2pos-- > 0) {
 184                 if (!match_or_digit(s1[s1pos], s2[s2pos])       )
 185                         break;
 186                 n++;
 187         }
 188         return n;
 189 }
 190
 191 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
 192 static const float default_similarity_threshold = 0.3;
 193
 194 void
 195 GenericPluginUI::build ()
 196 {
 197         guint32 i = 0;
 198         guint32 x = 0;
 199         Frame* frame;
 200         Frame* bt_frame;
 201         VBox* box;
 202         int output_row, output_col;
 203         int button_row, button_col;
 204         int output_rows, output_cols;
 205         int button_rows, button_cols;
 206
 207         hpacker.set_spacing (10);
 208
 209         output_rows = initial_output_rows;
 210         output_cols = initial_output_cols;
 211         button_rows = initial_button_rows;
 212         button_cols = initial_button_cols;
 213         output_row = 0;
 214         button_row = 0;
 215         output_col = 0;
 216         button_col = 0;
 217
 218         button_table.set_homogeneous (false);
 219         button_table.set_row_spacings (2);
 220         button_table.set_col_spacings (2);
 221         output_table.set_homogeneous (true);
 222         output_table.set_row_spacings (2);
 223         output_table.set_col_spacings (2);
 224         button_table.set_border_width (5);
 225         output_table.set_border_width (5);
 226
 227         hpacker.set_border_width (10);
 228
 229         bt_frame = manage (new Frame);
 230         bt_frame->set_name ("BaseFrame");
 231         bt_frame->set_label (_("Switches"));
 232         bt_frame->add (button_table);
 233         hpacker.pack_start(*bt_frame, true, true);
 234
 235         box = manage (new VBox);
 236         box->set_border_width (5);
 237         box->set_spacing (1);
 238
 239         frame = manage (new Frame);
 240         frame->set_name ("BaseFrame");
 241         frame->set_label (_("Controls"));
 242         frame->add (*box);
 243         hpacker.pack_start(*frame, true, true);
 244
 245         /* find all ports. build control elements for all appropriate control ports */
 246         std::vector<ControlUI *> cui_controls_list;
 247
 248         for (i = 0; i < plugin->parameter_count(); ++i) {
 249
 250                 if (plugin->parameter_is_control (i)) {
 251
 252                         /* Don't show latency control ports */
 253
 254                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
 255                                 continue;
 256                         }
 257
 258                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("hidden")) {
 259                                 continue;
 260                         }
 261
 262                         ControlUI* cui;
 263
 264                         boost::shared_ptr<ARDOUR::AutomationControl> c
 265                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 266                                         insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
 267
 268                         if ((cui = build_control_ui (i, c)) == 0) {
 269                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
 270                                 continue;
 271                         }
 272
 273                         const std::string param_docs = plugin->get_parameter_docs(i);
 274                         if (!param_docs.empty()) {
 275                                 ARDOUR_UI::instance()->set_tip(cui, param_docs.c_str());
 276                         }
 277
 278                         if (cui->controller || cui->clickbox || cui->combo) {
 279                                 // Get all of the controls into a list, so that
 280                                 // we can lay them out a bit more nicely later.
 281                                 cui_controls_list.push_back(cui);
 282                         } else if (cui->button) {
 283
 284                                 if (!is_scrollable && button_row == button_rows) {
 285                                         button_row = 0;
 286                                         if (++button_col == button_cols) {
 287                                                 button_cols += 2;
 288                                                 button_table.resize (button_rows, button_cols);
 289                                         }
 290                                 }
 291
 292                                 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
 293                                                      FILL|EXPAND, FILL);
 294                                 button_row++;
 295
 296                         } else if (cui->display) {
 297
 298                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 299                                                      FILL|EXPAND, FILL);
 300
 301                                 // TODO: The meters should be divided into multiple rows
 302
 303                                 if (++output_col == output_cols) {
 304                                         output_cols ++;
 305                                         output_table.resize (output_rows, output_cols);
 306                                 }
 307                         }
 308                 }
 309         }
 310
 311 #ifdef LV2_SUPPORT
 312         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 313         if (lv2p) {
 314                 _fcb = (Gtk::FileChooserButton**) malloc(lv2p->patch_count() * sizeof(Gtk::FileChooserButton*));
 315                 for (uint32_t p = 0; p < lv2p->patch_count(); ++p) {
 316                         _fcb[p] = manage (new Gtk::FileChooserButton (Gtk::FILE_CHOOSER_ACTION_OPEN));
 317                         _fcb[p]->signal_file_set().connect (sigc::bind(sigc::mem_fun (*this, &GenericPluginUI::patch_set_file), p));
 318                         lv2p->PatchChanged.connect (*this, invalidator (*this), boost::bind (&GenericPluginUI::patch_changed, this, _1), gui_context());
 319                         // when user cancels file selection the FileChooserButton will display "None"
 320                         // TODO hack away around this..
 321                         if (lv2p->patch_val(p)) {
 322                                 _fcb[p]->set_filename(lv2p->patch_val(p));
 323                         }
 324                         if (lv2p->patch_key(p)) {
 325                                 _fcb[p]->set_title(lv2p->patch_key(p));
 326                                 Gtk::Label* fcl = manage (new Label (lv2p->patch_key(p)));
 327                                 button_table.attach (*fcl, 0, button_cols, button_row, button_row + 1, FILL|EXPAND, FILL);
 328                                 ++button_row;
 329                         } else {
 330                                 _fcb[p]->set_title(_("LV2 Patch"));
 331                         }
 332
 333                         button_table.attach (*_fcb[p], 0, button_cols, button_row, button_row + 1, FILL|EXPAND, FILL);
 334                         ++button_row;
 335                 }
 336         }
 337 #endif
 338
 339         // Iterate over the list of controls to find which adjacent controls
 340         // are similar enough to be grouped together.
 341
 342         string label, previous_label = "";
 343         std::vector<int> numbers_in_labels(cui_controls_list.size());
 344
 345         std::vector<float> similarity_scores(cui_controls_list.size());
 346         float most_similar = 0.0, least_similar = 1.0;
 347
 348         i = 0;
 349         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 350                 label = (*cuip)->label.get_text();
 351                 numbers_in_labels[i] = get_number(label);
 352
 353                 if (i > 0) {
 354                         // A hand-wavy calculation of how similar this control's
 355                         // label is to the previous.
 356                         similarity_scores[i] =
 357                                 (float) (
 358                                         ( matching_chars_at_head(label, previous_label) +
 359                                           matching_chars_at_tail(label, previous_label) +
 360                                           1
 361                                         )
 362                                 ) / (label.length() + previous_label.length());
 363                         if (numbers_in_labels[i] >= 0) {
 364                                 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
 365                         }
 366                         least_similar = min(least_similar, similarity_scores[i]);
 367                         most_similar  = max(most_similar, similarity_scores[i]);
 368                 } else {
 369                         similarity_scores[0] = 1.0;
 370                 }
 371
 372                 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
 373                 previous_label = label;
 374         }
 375
 376
 377         // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
 378         float similarity_threshold;
 379
 380         if (most_similar > 1.0) {
 381                 similarity_threshold = default_similarity_threshold;
 382         } else {
 383                 similarity_threshold = most_similar - (1 - default_similarity_threshold);
 384         }
 385
 386         // Now iterate over the list of controls to display them, placing an
 387         // HSeparator between controls of less than a certain similarity, and
 388         // starting a new column when necessary.
 389
 390         i = 0;
 391         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 392
 393                 ControlUI* cui = *cuip;
 394
 395                 if (!is_scrollable) {
 396                         x++;
 397                 }
 398
 399                 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
 400                         if (x > min_controls_per_column) {
 401                                 frame = manage (new Frame);
 402                                 frame->set_name ("BaseFrame");
 403                                 frame->set_label (_("Controls"));
 404                                 box = manage (new VBox);
 405                                 box->set_border_width (5);
 406                                 box->set_spacing (1);
 407                                 frame->add (*box);
 408                                 hpacker.pack_start(*frame, true, true);
 409                                 x = 0;
 410                         } else {
 411                                 HSeparator *split = new HSeparator();
 412                                 split->set_size_request(-1, 5);
 413                                 box->pack_start(*split, false, false, 0);
 414                         }
 415
 416                 }
 417                 box->pack_start (*cui, false, false);
 418         }
 419
 420         if (is_scrollable) {
 421                 prefheight = 30 * i;
 422         }
 423
 424         if (box->children().empty()) {
 425                 hpacker.remove (*frame);
 426         }
 427
 428         if (button_table.children().empty()) {
 429                 hpacker.remove (*bt_frame);
 430         }
 431
 432         if (!output_table.children().empty()) {
 433                 frame = manage (new Frame);
 434                 frame->set_name ("BaseFrame");
 435                 frame->set_label(_("Meters"));
 436                 frame->add (output_table);
 437                 hpacker.pack_end (*frame, true, true);
 438         }
 439
 440         output_update ();
 441
 442         output_table.show_all ();
 443         button_table.show_all ();
 444 }
 445
 446 GenericPluginUI::ControlUI::ControlUI ()
 447         : automate_button (X_("")) // force creation of a label
 448 {
 449         automate_button.set_name ("PluginAutomateButton");
 450         ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
 451
 452         /* XXX translators: use a string here that will be at least as long
 453            as the longest automation label (see ::automation_state_changed()
 454            below). be sure to include a descender.
 455         */
 456
 457         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
 458
 459         ignore_change = 0;
 460         display = 0;
 461         button = 0;
 462         clickbox = 0;
 463         meterinfo = 0;
 464 }
 465
 466 GenericPluginUI::ControlUI::~ControlUI()
 467 {
 468         if (meterinfo) {
 469                 delete meterinfo->meter;
 470                 delete meterinfo;
 471         }
 472 }
 473
 474 void
 475 GenericPluginUI::automation_state_changed (ControlUI* cui)
 476 {
 477         /* update button label */
 478
 479         // don't lock to avoid deadlock because we're triggered by
 480         // AutomationControl::Changed() while the automation lock is taken
 481         switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
 482         case ARDOUR::Off:
 483                 cui->automate_button.set_label (S_("Automation|Manual"));
 484                 break;
 485         case Play:
 486                 cui->automate_button.set_label (_("Play"));
 487                 break;
 488         case Write:
 489                 cui->automate_button.set_label (_("Write"));
 490                 break;
 491         case Touch:
 492                 cui->automate_button.set_label (_("Touch"));
 493                 break;
 494         default:
 495                 cui->automate_button.set_label (_("???"));
 496                 break;
 497         }
 498 }
 499
 500
 501 bool
 502 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 503 {
 504         float const v = adj.get_value ();
 505
 506         if (cui->scale_points) {
 507                 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
 508                 while (i != cui->scale_points->end() && i->second != v) {
 509                         ++i;
 510                 }
 511
 512                 if (i != cui->scale_points->end ()) {
 513                         snprintf (buf, 32, "%s", i->first.c_str());
 514                         return true;
 515                 }
 516         }
 517
 518         snprintf (buf, 32, "%.0f", v);
 519         return true;
 520 }
 521
 522 bool
 523 GenericPluginUI::midinote_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 524 {
 525         float const v = adj.get_value ();
 526
 527         if (cui->scale_points) {
 528                 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
 529                 while (i != cui->scale_points->end() && i->second != v) {
 530                         ++i;
 531                 }
 532
 533                 if (i != cui->scale_points->end ()) {
 534                         snprintf (buf, 32, "%s", i->first.c_str());
 535                         return true;
 536                 }
 537         }
 538         if (v >= 0 && v <= 127) {
 539                 int mn = rint(v);
 540                 const char notename[12][3] = { "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" };
 541                 snprintf (buf, 32, "%s %d", notename[mn%12], (mn/12)-2);
 542         } else {
 543                 snprintf (buf, 32, "%.0f", v);
 544         }
 545         return true;
 546 }
 547
 548 void
 549 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
 550 {
 551         plugin->print_parameter (param, buf, len);
 552 }
 553
 554 GenericPluginUI::ControlUI*
 555 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
 556 {
 557         ControlUI* control_ui = 0;
 558
 559         Plugin::ParameterDescriptor desc;
 560
 561         plugin->get_parameter_descriptor (port_index, desc);
 562
 563         control_ui = manage (new ControlUI ());
 564         control_ui->combo = 0;
 565         control_ui->control = mcontrol;
 566         control_ui->update_pending = false;
 567         control_ui->label.set_text (desc.label);
 568         control_ui->label.set_alignment (0.0, 0.5);
 569         control_ui->label.set_name ("PluginParameterLabel");
 570         control_ui->port_index = port_index;
 571
 572         control_ui->set_spacing (5);
 573
 574         Gtk::Requisition req (control_ui->automate_button.size_request());
 575
 576         if (plugin->parameter_is_input(port_index)) {
 577
 578                 /* See if there any named values for our input value */
 579                 control_ui->scale_points = plugin->get_scale_points (port_index);
 580
 581                 /* If this parameter is an integer, work out the number of distinct values
 582                    it can take on (assuming that lower and upper values are allowed).
 583                 */
 584                 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
 585
 586                 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
 587
 588                         /* Either:
 589                          *   a) There is a label for each possible value of this input, or
 590                          *   b) This port is marked as being an enumeration.
 591                          */
 592
 593                         std::vector<std::string> labels;
 594                         for (
 595                                 ARDOUR::Plugin::ScalePoints::const_iterator i = control_ui->scale_points->begin();
 596                                 i != control_ui->scale_points->end();
 597                                 ++i) {
 598
 599                                 labels.push_back(i->first);
 600                         }
 601
 602                         control_ui->combo = new Gtk::ComboBoxText();
 603                         set_popdown_strings(*control_ui->combo, labels);
 604                         control_ui->combo->signal_changed().connect(
 605                                 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
 606                                             control_ui));
 607                         mcontrol->Changed.connect(control_connections, invalidator(*this),
 608                                                   boost::bind(&GenericPluginUI::ui_parameter_changed,
 609                                                               this, control_ui),
 610                                                   gui_context());
 611                         control_ui->pack_start(control_ui->label, true, true);
 612                         control_ui->pack_start(*control_ui->combo, false, true);
 613
 614                         update_control_display(control_ui);
 615
 616                         return control_ui;
 617                 }
 618
 619                 if (desc.toggled) {
 620
 621                         /* Build a button */
 622
 623                         control_ui->button = manage (new ToggleButton ());
 624                         control_ui->button->set_name ("PluginEditorButton");
 625                         control_ui->button->set_size_request (20, 20);
 626
 627                         control_ui->pack_start (control_ui->label, true, true);
 628                         control_ui->pack_start (*control_ui->button, false, true);
 629                         control_ui->pack_start (control_ui->automate_button, false, false);
 630
 631                         control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
 632                         control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 633
 634                         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
 635                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 636
 637                         if (plugin->get_parameter (port_index) > 0.5){
 638                                 control_ui->button->set_active(true);
 639                         }
 640
 641                         automation_state_changed (control_ui);
 642
 643                         return control_ui;
 644                 }
 645
 646                 /* create the controller */
 647
 648                 if (mcontrol) {
 649                         control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
 650                 }
 651
 652                 /* XXX this code is not right yet, because it doesn't handle
 653                    the absence of bounds in any sensible fashion.
 654                 */
 655
 656                 Adjustment* adj = control_ui->controller->adjustment();
 657                 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
 658
 659                 adj->set_lower (desc.lower);
 660                 adj->set_upper (desc.upper);
 661
 662                 adj->set_step_increment (desc.step);
 663                 adj->set_page_increment (desc.largestep);
 664
 665                 if (desc.integer_step) {
 666                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
 667                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
 668                         if (desc.midinote) {
 669                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::midinote_printer), control_ui));
 670                         } else {
 671                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
 672                         }
 673                 } else {
 674                         //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 675
 676                         control_ui->controller->set_size_request (200, req.height);
 677                         control_ui->controller->set_name (X_("ProcessorControlSlider"));
 678
 679                         control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
 680                         control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
 681
 682                 }
 683
 684                 adj->set_value (plugin->get_parameter (port_index));
 685
 686                 /* XXX memory leak: SliderController not destroyed by ControlUI
 687                    destructor, and manage() reports object hierarchy
 688                    ambiguity.
 689                 */
 690
 691                 control_ui->pack_start (control_ui->label, true, true);
 692                 if (desc.integer_step) {
 693                         control_ui->pack_start (*control_ui->clickbox, false, false);
 694                 } else {
 695                         control_ui->pack_start (*control_ui->controller, false, false);
 696                 }
 697
 698                 control_ui->pack_start (control_ui->automate_button, false, false);
 699                 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 700
 701                 automation_state_changed (control_ui);
 702
 703                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 704                 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 705
 706                 input_controls.push_back (control_ui);
 707
 708         } else if (plugin->parameter_is_output (port_index)) {
 709
 710                 control_ui->display = manage (new EventBox);
 711                 control_ui->display->set_name ("ParameterValueDisplay");
 712
 713                 control_ui->display_label = manage (new Label);
 714
 715                 control_ui->display_label->set_name ("ParameterValueDisplay");
 716
 717                 control_ui->display->add (*control_ui->display_label);
 718                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-888.8g", 2, 6);
 719
 720                 control_ui->display->show_all ();
 721
 722                 /* set up a meter */
 723                 /* TODO: only make a meter if the port is Hinted for it */
 724
 725                 MeterInfo * info = new MeterInfo(port_index);
 726                 control_ui->meterinfo = info;
 727
 728                 info->meter = new FastMeter (
 729                                 5, 5, FastMeter::Vertical, 0,
 730                                 0x0000aaff,
 731                                 0x008800ff, 0x008800ff,
 732                                 0x00ff00ff, 0x00ff00ff,
 733                                 0xcccc00ff, 0xcccc00ff,
 734                                 0xffaa00ff, 0xffaa00ff,
 735                                 0xff0000ff,
 736                                 ARDOUR_UI::config()->get_MeterBackgroundBot(),
 737                                 ARDOUR_UI::config()->get_MeterBackgroundTop()
 738                                 );
 739
 740                 info->min_unbound = desc.min_unbound;
 741                 info->max_unbound = desc.max_unbound;
 742
 743                 info->min = desc.lower;
 744                 info->max = desc.upper;
 745
 746                 control_ui->vbox = manage (new VBox);
 747                 control_ui->hbox = manage (new HBox);
 748
 749                 control_ui->hbox->set_spacing(1);
 750                 control_ui->vbox->set_spacing(3);
 751
 752                 control_ui->label.set_angle(90);
 753                 control_ui->hbox->pack_start (control_ui->label, false, false);
 754                 control_ui->hbox->pack_start (*info->meter, false, false);
 755
 756                 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
 757
 758                 control_ui->vbox->pack_start (*control_ui->display, false, false);
 759
 760                 control_ui->pack_start (*control_ui->vbox);
 761
 762                 control_ui->meterinfo->meter->show_all();
 763                 control_ui->meterinfo->packed = true;
 764
 765                 output_controls.push_back (control_ui);
 766         }
 767
 768         if (mcontrol) {
 769                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 770         }
 771
 772         return control_ui;
 773 }
 774
 775 void
 776 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
 777 {
 778         cui->control->start_touch (cui->control->session().transport_frame());
 779 }
 780
 781 void
 782 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
 783 {
 784         cui->control->stop_touch (false, cui->control->session().transport_frame());
 785 }
 786
 787 void
 788 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
 789 {
 790         using namespace Menu_Helpers;
 791
 792         if (automation_menu == 0) {
 793                 automation_menu = manage (new Menu);
 794                 automation_menu->set_name ("ArdourContextMenu");
 795         }
 796
 797         MenuList& items (automation_menu->items());
 798
 799         items.clear ();
 800         items.push_back (MenuElem (S_("Automation|Manual"),
 801                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
 802         items.push_back (MenuElem (_("Play"),
 803                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
 804         items.push_back (MenuElem (_("Write"),
 805                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
 806         items.push_back (MenuElem (_("Touch"),
 807                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
 808
 809         automation_menu->popup (1, gtk_get_current_event_time());
 810 }
 811
 812 void
 813 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
 814 {
 815         insert->set_parameter_automation_state (cui->parameter(), state);
 816 }
 817
 818 void
 819 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
 820 {
 821         float val = cui->control->get_value();
 822
 823         if (!cui->ignore_change) {
 824                 if (val > 0.5) {
 825                         cui->button->set_active (true);
 826                         cui->button->set_name ("PluginEditorButton-active");
 827                 } else {
 828                         cui->button->set_active (false);
 829                         cui->button->set_name ("PluginEditorButton");
 830                 }
 831         }
 832 }
 833
 834 void
 835 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
 836 {
 837         if (!cui->update_pending) {
 838                 cui->update_pending = true;
 839                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
 840         }
 841 }
 842
 843 void
 844 GenericPluginUI::update_control_display (ControlUI* cui)
 845 {
 846         /* XXX how do we handle logarithmic stuff here ? */
 847
 848         cui->update_pending = false;
 849
 850         float val = cui->control->get_value();
 851
 852         cui->ignore_change++;
 853
 854         if (cui->combo && cui->scale_points) {
 855                 for (ARDOUR::Plugin::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
 856                         if (it->second == val) {
 857                                 cui->combo->set_active_text(it->first);
 858                                 break;
 859                         }
 860                 }
 861         } else if (cui->button) {
 862
 863                 if (val > 0.5) {
 864                         cui->button->set_active (true);
 865                 } else {
 866                         cui->button->set_active (false);
 867                 }
 868         }
 869
 870         if( cui->controller ) {
 871             cui->controller->display_effective_value();
 872         }
 873
 874
 875         /*} else {
 876                 if (cui->logarithmic) {
 877                         val = log(val);
 878                 }
 879                 if (val != cui->adjustment->get_value()) {
 880                         cui->adjustment->set_value (val);
 881                 }
 882         }*/
 883         cui->ignore_change--;
 884 }
 885
 886 void
 887 GenericPluginUI::control_port_toggled (ControlUI* cui)
 888 {
 889         cui->ignore_change++;
 890         const bool active = cui->button->get_active();
 891         if (active) {
 892                 cui->button->set_name ("PluginEditorButton-active");
 893         } else {
 894                 cui->button->set_name ("PluginEditorButton");
 895         }
 896         insert->automation_control (cui->parameter())->set_value (active);
 897         cui->ignore_change--;
 898 }
 899
 900 void
 901 GenericPluginUI::control_combo_changed (ControlUI* cui)
 902 {
 903         if (!cui->ignore_change && cui->scale_points) {
 904                 string value = cui->combo->get_active_text();
 905                 insert->automation_control (cui->parameter())->set_value ((*cui->scale_points)[value]);
 906         }
 907 }
 908
 909 bool
 910 GenericPluginUI::start_updating (GdkEventAny*)
 911 {
 912         if (output_controls.size() > 0 ) {
 913                 screen_update_connection.disconnect();
 914                 screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 915                         (sigc::mem_fun(*this, &GenericPluginUI::output_update));
 916         }
 917         return false;
 918 }
 919
 920 bool
 921 GenericPluginUI::stop_updating (GdkEventAny*)
 922 {
 923         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
 924                 (*i)->controller->stop_updating ();
 925         }
 926
 927         if (output_controls.size() > 0 ) {
 928                 screen_update_connection.disconnect();
 929         }
 930
 931         return false;
 932 }
 933
 934 void
 935 GenericPluginUI::output_update ()
 936 {
 937         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
 938                 float val = plugin->get_parameter ((*i)->port_index);
 939                 char buf[32];
 940                 snprintf (buf, sizeof(buf), "%.2f", val);
 941                 (*i)->display_label->set_text (buf);
 942
 943                 /* autoscaling for the meter */
 944                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
 945
 946                         if (val < (*i)->meterinfo->min) {
 947                                 if ((*i)->meterinfo->min_unbound)
 948                                         (*i)->meterinfo->min = val;
 949                                 else
 950                                         val = (*i)->meterinfo->min;
 951                         }
 952
 953                         if (val > (*i)->meterinfo->max) {
 954                                 if ((*i)->meterinfo->max_unbound)
 955                                         (*i)->meterinfo->max = val;
 956                                 else
 957                                         val = (*i)->meterinfo->max;
 958                         }
 959
 960                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
 961                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
 962                                 (*i)->meterinfo->meter->set (lval );
 963                         }
 964                 }
 965         }
 966 }
 967
 968 #ifdef LV2_SUPPORT
 969
 970 void
 971 GenericPluginUI::patch_set_file (uint32_t p)
 972 {
 973         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 974         lv2p->patch_set(p, _fcb[p]->get_filename ().c_str());
 975 }
 976
 977 void
 978 GenericPluginUI::patch_changed (uint32_t p)
 979 {
 980         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 981         _fcb[p]->set_filename(lv2p->patch_val(p));
 982 }
 983
 984 #endif