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