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         build ();
 132 }
 133
 134 GenericPluginUI::~GenericPluginUI ()
 135 {
 136         if (output_controls.size() > 0) {
 137                 screen_update_connection.disconnect();
 138         }
 139 }
 140
 141 void
 142 GenericPluginUI::build ()
 143 {
 144         guint32 i = 0;
 145         guint32 x = 0;
 146         Frame* frame;
 147         Frame* bt_frame;
 148         VBox* box;
 149         int output_row, output_col;
 150         int button_row, button_col;
 151         int output_rows, output_cols;
 152         int button_rows, button_cols;
 153
 154         prefheight = 30;
 155         hpacker.set_spacing (10);
 156
 157         output_rows = initial_output_rows;
 158         output_cols = initial_output_cols;
 159         button_rows = initial_button_rows;
 160         button_cols = initial_button_cols;
 161         output_row = 0;
 162         button_row = 0;
 163         output_col = 0;
 164         button_col = 0;
 165
 166         button_table.set_homogeneous (false);
 167         button_table.set_row_spacings (2);
 168         button_table.set_col_spacings (2);
 169         output_table.set_homogeneous (true);
 170         output_table.set_row_spacings (2);
 171         output_table.set_col_spacings (2);
 172         button_table.set_border_width (5);
 173         output_table.set_border_width (5);
 174
 175         hpacker.set_border_width (10);
 176
 177         bt_frame = manage (new Frame);
 178         bt_frame->set_name ("BaseFrame");
 179         bt_frame->add (button_table);
 180         hpacker.pack_start(*bt_frame, true, true);
 181
 182         box = manage (new VBox);
 183         box->set_border_width (5);
 184         box->set_spacing (1);
 185
 186         frame = manage (new Frame);
 187         frame->set_name ("BaseFrame");
 188         frame->set_label (_("Controls"));
 189         frame->add (*box);
 190         hpacker.pack_start(*frame, true, true);
 191
 192         /* find all ports. build control elements for all appropriate control ports */
 193
 194         for (i = 0; i < plugin->parameter_count(); ++i) {
 195
 196                 if (plugin->parameter_is_control (i)) {
 197
 198                         /* Don't show latency control ports */
 199
 200                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
 201                                 continue;
 202                         }
 203
 204                         ControlUI* cui;
 205
 206                         /* if we are scrollable, just use one long column */
 207
 208                         if (!is_scrollable) {
 209                                 if (x++ > 20){
 210                                         frame = manage (new Frame);
 211                                         frame->set_name ("BaseFrame");
 212                                         box = manage (new VBox);
 213
 214                                         box->set_border_width (5);
 215                                         box->set_spacing (1);
 216
 217                                         frame->add (*box);
 218                                         hpacker.pack_start(*frame, true, true);
 219
 220                                         x = 1;
 221                                 }
 222                         }
 223
 224                         boost::shared_ptr<ARDOUR::AutomationControl> c
 225                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 226                                         insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
 227
 228                         if ((cui = build_control_ui (i, c)) == 0) {
 229                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
 230                                 continue;
 231                         }
 232
 233                         if (cui->controller || cui->clickbox || cui->combo) {
 234
 235                                 box->pack_start (*cui, false, false);
 236
 237                         } else if (cui->button) {
 238
 239                                 if (button_row == button_rows) {
 240                                         button_row = 0;
 241                                         if (++button_col == button_cols) {
 242                                                 button_cols += 2;
 243                                                 button_table.resize (button_rows, button_cols);
 244                                         }
 245                                 }
 246
 247                                 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
 248                                                      FILL|EXPAND, FILL);
 249                                 button_row++;
 250
 251                         } else if (cui->display) {
 252
 253                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 254                                                      FILL|EXPAND, FILL);
 255
 256                                 // TODO: The meters should be divided into multiple rows
 257
 258                                 if (++output_col == output_cols) {
 259                                         output_cols ++;
 260                                         output_table.resize (output_rows, output_cols);
 261                                 }
 262
 263                                 /* old code, which divides meters into
 264                                  * columns first, rows later. New code divides into one row
 265
 266                                 if (output_row == output_rows) {
 267                                         output_row = 0;
 268                                         if (++output_col == output_cols) {
 269                                                 output_cols += 2;
 270                                                 output_table.resize (output_rows, output_cols);
 271                                         }
 272                                 }
 273
 274                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 275                                                      FILL|EXPAND, FILL);
 276
 277                                 output_row++;
 278                                 */
 279                         }
 280
 281                         /* HACK: ideally the preferred height would be queried from
 282                            the complete hpacker, but I can't seem to get that
 283                            information in time, so this is an estimation
 284                         */
 285
 286                         prefheight += 30;
 287
 288                 }
 289         }
 290
 291         if (box->children().empty()) {
 292                 hpacker.remove (*frame);
 293         }
 294
 295         if (button_table.children().empty()) {
 296                 hpacker.remove (*bt_frame);
 297         }
 298
 299         if (!output_table.children().empty()) {
 300                 frame = manage (new Frame);
 301                 frame->set_name ("BaseFrame");
 302                 frame->add (output_table);
 303                 hpacker.pack_end (*frame, true, true);
 304         }
 305
 306         output_update ();
 307
 308         output_table.show_all ();
 309         button_table.show_all ();
 310 }
 311
 312 GenericPluginUI::ControlUI::ControlUI ()
 313         : automate_button (X_("")) // force creation of a label
 314 {
 315         automate_button.set_name ("PluginAutomateButton");
 316         ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
 317
 318         /* XXX translators: use a string here that will be at least as long
 319            as the longest automation label (see ::automation_state_changed()
 320            below). be sure to include a descender.
 321         */
 322
 323         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
 324
 325         ignore_change = 0;
 326         display = 0;
 327         button = 0;
 328         clickbox = 0;
 329         meterinfo = 0;
 330 }
 331
 332 GenericPluginUI::ControlUI::~ControlUI()
 333 {
 334         if (meterinfo) {
 335                 delete meterinfo->meter;
 336                 delete meterinfo;
 337         }
 338 }
 339
 340 void
 341 GenericPluginUI::automation_state_changed (ControlUI* cui)
 342 {
 343         /* update button label */
 344
 345         // don't lock to avoid deadlock because we're triggered by
 346         // AutomationControl::Changed() while the automation lock is taken
 347         switch (insert->get_parameter_automation_state (cui->parameter())
 348                         & (Off|Play|Touch|Write)) {
 349         case Off:
 350                 cui->automate_button.set_label (_("Manual"));
 351                 break;
 352         case Play:
 353                 cui->automate_button.set_label (_("Play"));
 354                 break;
 355         case Write:
 356                 cui->automate_button.set_label (_("Write"));
 357                 break;
 358         case Touch:
 359                 cui->automate_button.set_label (_("Touch"));
 360                 break;
 361         default:
 362                 cui->automate_button.set_label (_("???"));
 363                 break;
 364         }
 365 }
 366
 367
 368 static void integer_printer (char buf[32], Adjustment &adj, void */*arg*/)
 369 {
 370         snprintf (buf, 32, "%.0f", adj.get_value());
 371 }
 372
 373 void
 374 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
 375 {
 376         plugin->print_parameter (param, buf, len);
 377 }
 378
 379 GenericPluginUI::ControlUI*
 380 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
 381 {
 382         ControlUI* control_ui = 0;
 383
 384         Plugin::ParameterDescriptor desc;
 385
 386         plugin->get_parameter_descriptor (port_index, desc);
 387
 388         control_ui = manage (new ControlUI ());
 389         control_ui->combo = 0;
 390         control_ui->combo_map = 0;
 391         control_ui->control = mcontrol;
 392         control_ui->update_pending = false;
 393         control_ui->label.set_text (desc.label);
 394         control_ui->label.set_alignment (0.0, 0.5);
 395         control_ui->label.set_name ("PluginParameterLabel");
 396         control_ui->port_index = port_index;
 397
 398         control_ui->set_spacing (5);
 399
 400         Gtk::Requisition req (control_ui->automate_button.size_request());
 401
 402         if (plugin->parameter_is_input(port_index)) {
 403
 404                 /* Build a combo box */
 405
 406                 boost::shared_ptr<ARDOUR::Plugin::ScalePoints> points
 407                         = plugin->get_scale_points(port_index);
 408
 409                 if (points) {
 410                         std::vector<std::string> labels;
 411                         for (ARDOUR::Plugin::ScalePoints::const_iterator i = points->begin();
 412                              i != points->end(); ++i) {
 413                                 labels.push_back(i->first);
 414                         }
 415
 416                         control_ui->combo = new Gtk::ComboBoxText();
 417                         set_popdown_strings(*control_ui->combo, labels);
 418                         control_ui->combo->signal_changed().connect(
 419                                 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
 420                                             control_ui));
 421                         mcontrol->Changed.connect(control_connections, invalidator(*this),
 422                                                   boost::bind(&GenericPluginUI::ui_parameter_changed,
 423                                                               this, control_ui),
 424                                                   gui_context());
 425                         control_ui->pack_start(control_ui->label, true, true);
 426                         control_ui->pack_start(*control_ui->combo, false, true);
 427
 428                         update_control_display(control_ui);
 429
 430                         return control_ui;
 431                 }
 432
 433                 if (desc.toggled) {
 434
 435                         /* Build a button */
 436
 437                         control_ui->button = manage (new ToggleButton ());
 438                         control_ui->button->set_name ("PluginEditorButton");
 439                         control_ui->button->set_size_request (20, 20);
 440
 441                         control_ui->pack_start (control_ui->label, true, true);
 442                         control_ui->pack_start (*control_ui->button, false, true);
 443                         control_ui->pack_start (control_ui->automate_button, false, false);
 444
 445                         control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
 446                         control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 447
 448                         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
 449                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 450
 451                         if (plugin->get_parameter (port_index) > 0.5){
 452                                 control_ui->button->set_active(true);
 453                         }
 454
 455                         automation_state_changed (control_ui);
 456
 457                         return control_ui;
 458                 }
 459
 460                 /* create the controller */
 461
 462                 if (mcontrol) {
 463                         control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
 464                 }
 465
 466                 /* XXX this code is not right yet, because it doesn't handle
 467                    the absence of bounds in any sensible fashion.
 468                 */
 469
 470                 Adjustment* adj = control_ui->controller->adjustment();
 471                 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
 472
 473                 adj->set_lower (pc->user_to_ui (desc.lower));
 474                 adj->set_upper (pc->user_to_ui (desc.upper));
 475
 476                 adj->set_step_increment (desc.step);
 477                 adj->set_page_increment (desc.largestep);
 478
 479                 if (desc.integer_step) {
 480                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
 481                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
 482                         control_ui->clickbox->set_print_func (integer_printer, 0);
 483                 } else {
 484                         //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 485
 486                         control_ui->controller->set_size_request (200, req.height);
 487                         control_ui->controller->set_name (X_("PluginSlider"));
 488                         control_ui->controller->set_style (BarController::LeftToRight);
 489                         control_ui->controller->set_use_parent (true);
 490                         control_ui->controller->set_logarithmic (desc.logarithmic);
 491
 492                         control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
 493                         control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
 494
 495                 }
 496
 497                 adj->set_value (pc->plugin_to_ui (plugin->get_parameter (port_index)));
 498
 499                 /* XXX memory leak: SliderController not destroyed by ControlUI
 500                    destructor, and manage() reports object hierarchy
 501                    ambiguity.
 502                 */
 503
 504                 control_ui->pack_start (control_ui->label, true, true);
 505                 if (desc.integer_step) {
 506                         control_ui->pack_start (*control_ui->clickbox, false, false);
 507                 } else {
 508                         control_ui->pack_start (*control_ui->controller, false, false);
 509                 }
 510
 511                 control_ui->pack_start (control_ui->automate_button, false, false);
 512                 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 513
 514                 automation_state_changed (control_ui);
 515
 516                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 517                 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 518
 519                 input_controls.push_back (control_ui);
 520
 521         } else if (plugin->parameter_is_output (port_index)) {
 522
 523                 control_ui->display = manage (new EventBox);
 524                 control_ui->display->set_name ("ParameterValueDisplay");
 525
 526                 control_ui->display_label = manage (new Label);
 527
 528                 control_ui->display_label->set_name ("ParameterValueDisplay");
 529
 530                 control_ui->display->add (*control_ui->display_label);
 531                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
 532
 533                 control_ui->display->show_all ();
 534
 535                 /* set up a meter */
 536                 /* TODO: only make a meter if the port is Hinted for it */
 537
 538                 MeterInfo * info = new MeterInfo(port_index);
 539                 control_ui->meterinfo = info;
 540
 541                 info->meter = new FastMeter (5, 5, FastMeter::Vertical);
 542
 543                 info->min_unbound = desc.min_unbound;
 544                 info->max_unbound = desc.max_unbound;
 545
 546                 info->min = desc.lower;
 547                 info->max = desc.upper;
 548
 549                 control_ui->vbox = manage (new VBox);
 550                 control_ui->hbox = manage (new HBox);
 551
 552                 control_ui->label.set_angle(90);
 553                 control_ui->hbox->pack_start (control_ui->label, false, false);
 554                 control_ui->hbox->pack_start (*info->meter, false, false);
 555
 556                 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
 557
 558                 control_ui->vbox->pack_start (*control_ui->display, false, false);
 559
 560                 control_ui->pack_start (*control_ui->vbox);
 561
 562                 control_ui->meterinfo->meter->show_all();
 563                 control_ui->meterinfo->packed = true;
 564
 565                 output_controls.push_back (control_ui);
 566         }
 567
 568         if (mcontrol) {
 569                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 570         }
 571
 572         return control_ui;
 573 }
 574
 575 void
 576 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
 577 {
 578         cui->control->start_touch (cui->control->session().transport_frame());
 579 }
 580
 581 void
 582 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
 583 {
 584         cui->control->stop_touch (false, cui->control->session().transport_frame());
 585 }
 586
 587 void
 588 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
 589 {
 590         using namespace Menu_Helpers;
 591
 592         if (automation_menu == 0) {
 593                 automation_menu = manage (new Menu);
 594                 automation_menu->set_name ("ArdourContextMenu");
 595         }
 596
 597         MenuList& items (automation_menu->items());
 598
 599         items.clear ();
 600         items.push_back (MenuElem (_("Manual"),
 601                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Off, cui)));
 602         items.push_back (MenuElem (_("Play"),
 603                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
 604         items.push_back (MenuElem (_("Write"),
 605                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
 606         items.push_back (MenuElem (_("Touch"),
 607                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
 608
 609         automation_menu->popup (1, gtk_get_current_event_time());
 610 }
 611
 612 void
 613 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
 614 {
 615         insert->set_parameter_automation_state (cui->parameter(), state);
 616 }
 617
 618 void
 619 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
 620 {
 621         float val = cui->control->get_value();
 622
 623         if (!cui->ignore_change) {
 624                 if (val > 0.5) {
 625                         cui->button->set_active (true);
 626                 } else {
 627                         cui->button->set_active (false);
 628                 }
 629         }
 630 }
 631
 632 void
 633 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
 634 {
 635         if (!cui->update_pending) {
 636                 cui->update_pending = true;
 637                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
 638         }
 639 }
 640
 641 void
 642 GenericPluginUI::update_control_display (ControlUI* cui)
 643 {
 644         /* XXX how do we handle logarithmic stuff here ? */
 645
 646         cui->update_pending = false;
 647
 648         float val = cui->control->get_value();
 649
 650         cui->ignore_change++;
 651
 652         if (cui->combo && cui->combo_map) {
 653                 std::map<string,float>::iterator it;
 654                 for (it = cui->combo_map->begin(); it != cui->combo_map->end(); ++it) {
 655                         if (it->second == val) {
 656                                 cui->combo->set_active_text(it->first);
 657                                 break;
 658                         }
 659                 }
 660         } else if (cui->button) {
 661
 662                 if (val > 0.5) {
 663                         cui->button->set_active (true);
 664                 } else {
 665                         cui->button->set_active (false);
 666                 }
 667         }
 668
 669         if( cui->controller ) {
 670             cui->controller->display_effective_value();
 671         }
 672
 673
 674         /*} else {
 675                 if (cui->logarithmic) {
 676                         val = log(val);
 677                 }
 678                 if (val != cui->adjustment->get_value()) {
 679                         cui->adjustment->set_value (val);
 680                 }
 681         }*/
 682         cui->ignore_change--;
 683 }
 684
 685 void
 686 GenericPluginUI::control_port_toggled (ControlUI* cui)
 687 {
 688         cui->ignore_change++;
 689         insert->automation_control (cui->parameter())->set_value (cui->button->get_active());
 690         cui->ignore_change--;
 691 }
 692
 693 void
 694 GenericPluginUI::control_combo_changed (ControlUI* cui)
 695 {
 696         if (!cui->ignore_change && cui->combo_map) {
 697                 string value = cui->combo->get_active_text();
 698                 std::map<string,float> mapping = *cui->combo_map;
 699                 insert->automation_control(cui->parameter())->set_value(mapping[value]);
 700         }
 701 }
 702
 703 void
 704 GenericPluginUI::processor_active_changed (boost::weak_ptr<Processor> weak_processor)
 705 {
 706         ENSURE_GUI_THREAD (*this, &GenericPluginUI::processor_active_changed, weak_processor)
 707
 708         boost::shared_ptr<Processor> processor = weak_processor.lock();
 709
 710         bypass_button.set_active (!processor || !processor->active());
 711 }
 712
 713 bool
 714 GenericPluginUI::start_updating (GdkEventAny*)
 715 {
 716         if (output_controls.size() > 0 ) {
 717                 screen_update_connection.disconnect();
 718                 screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
 719                         (sigc::mem_fun(*this, &GenericPluginUI::output_update));
 720         }
 721         return false;
 722 }
 723
 724 bool
 725 GenericPluginUI::stop_updating (GdkEventAny*)
 726 {
 727         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
 728                 (*i)->controller->stop_updating ();
 729         }
 730
 731         if (output_controls.size() > 0 ) {
 732                 screen_update_connection.disconnect();
 733         }
 734
 735         return false;
 736 }
 737
 738 void
 739 GenericPluginUI::output_update ()
 740 {
 741         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
 742                 float val = plugin->get_parameter ((*i)->port_index);
 743                 char buf[32];
 744                 snprintf (buf, sizeof(buf), "%.2f", val);
 745                 (*i)->display_label->set_text (buf);
 746
 747                 /* autoscaling for the meter */
 748                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
 749
 750                         if (val < (*i)->meterinfo->min) {
 751                                 if ((*i)->meterinfo->min_unbound)
 752                                         (*i)->meterinfo->min = val;
 753                                 else
 754                                         val = (*i)->meterinfo->min;
 755                         }
 756
 757                         if (val > (*i)->meterinfo->max) {
 758                                 if ((*i)->meterinfo->max_unbound)
 759                                         (*i)->meterinfo->max = val;
 760                                 else
 761                                         val = (*i)->meterinfo->max;
 762                         }
 763
 764                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
 765                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
 766                                 (*i)->meterinfo->meter->set (lval );
 767                         }
 768                 }
 769         }
 770 }
 771
 772