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/ladspa_plugin.h"
  45 #ifdef HAVE_SLV2
  46 #include "ardour/lv2_plugin.h"
  47 #endif
  48 #include "ardour/session.h"
  49
  50 #include <lrdf.h>
  51
  52 #include "ardour_ui.h"
  53 #include "prompter.h"
  54 #include "plugin_ui.h"
  55 #include "utils.h"
  56 #include "gui_thread.h"
  57 #include "automation_controller.h"
  58
  59 #include "i18n.h"
  60
  61 using namespace std;
  62 using namespace ARDOUR;
  63 using namespace PBD;
  64 using namespace Gtkmm2ext;
  65 using namespace Gtk;
  66
  67 GenericPluginUI::GenericPluginUI (boost::shared_ptr<PluginInsert> pi, bool scrollable)
  68         : PlugUIBase (pi),
  69           button_table (initial_button_rows, initial_button_cols),
  70           output_table (initial_output_rows, initial_output_cols),
  71           hAdjustment(0.0, 0.0, 0.0),
  72           vAdjustment(0.0, 0.0, 0.0),
  73           scroller_view(hAdjustment, vAdjustment),
  74           automation_menu (0),
  75           is_scrollable(scrollable)
  76 {
  77         set_name ("PluginEditor");
  78         set_border_width (10);
  79         //set_homogeneous (false);
  80
  81         pack_start (main_contents, false, false);
  82         settings_box.set_homogeneous (false);
  83
  84         HBox* constraint_hbox = manage (new HBox);
  85         HBox* smaller_hbox = manage (new HBox);
  86         smaller_hbox->set_spacing (4);
  87         Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
  88         combo_label->set_use_markup (true);
  89
  90         latency_button.add (latency_label);
  91         latency_button.signal_clicked().connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
  92         set_latency_label ();
  93
  94         smaller_hbox->pack_start (latency_button, false, false, 10);
  95         smaller_hbox->pack_start (_preset_box, false, false);
  96         smaller_hbox->pack_start (add_button, false, false);
  97         smaller_hbox->pack_start (save_button, false, false);
  98         smaller_hbox->pack_start (delete_button, false, false);
  99         smaller_hbox->pack_start (bypass_button, false, true);
 100
 101         constraint_hbox->set_spacing (5);
 102         constraint_hbox->set_homogeneous (false);
 103
 104         VBox* v1_box = manage (new VBox);
 105         VBox* v2_box = manage (new VBox);
 106         pack_end (plugin_analysis_expander, true, true);
 107
 108         v1_box->pack_start (*smaller_hbox, false, true);
 109         v2_box->pack_start (focus_button, false, true);
 110
 111         main_contents.pack_start (settings_box, false, false);
 112
 113         constraint_hbox->pack_end (*v2_box, false, false);
 114         constraint_hbox->pack_end (*v1_box, false, false);
 115
 116         main_contents.pack_start (*constraint_hbox, false, false);
 117
 118         if ( is_scrollable ) {
 119                 scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 120                 scroller.set_name ("PluginEditor");
 121                 scroller_view.set_name("PluginEditor");
 122                 scroller_view.add (hpacker);
 123                 scroller.add (scroller_view);
 124
 125                 main_contents.pack_start (scroller, true, true);
 126
 127         }
 128         else {
 129                 main_contents.pack_start (hpacker, false, false);
 130         }
 131
 132         pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
 133
 134         bypass_button.set_active (!pi->active());
 135
 136         build ();
 137 }
 138
 139 GenericPluginUI::~GenericPluginUI ()
 140 {
 141         if (output_controls.size() > 0) {
 142                 screen_update_connection.disconnect();
 143         }
 144 }
 145
 146 void
 147 GenericPluginUI::build ()
 148
 149 {
 150         guint32 i = 0;
 151         guint32 x = 0;
 152         Frame* frame;
 153         Frame* bt_frame;
 154         VBox* box;
 155         int output_row, output_col;
 156         int button_row, button_col;
 157         int output_rows, output_cols;
 158         int button_rows, button_cols;
 159
 160         prefheight = 30;
 161         hpacker.set_spacing (10);
 162
 163         output_rows = initial_output_rows;
 164         output_cols = initial_output_cols;
 165         button_rows = initial_button_rows;
 166         button_cols = initial_button_cols;
 167         output_row = 0;
 168         button_row = 0;
 169         output_col = 0;
 170         button_col = 0;
 171
 172         button_table.set_homogeneous (false);
 173         button_table.set_row_spacings (2);
 174         button_table.set_col_spacings (2);
 175         output_table.set_homogeneous (true);
 176         output_table.set_row_spacings (2);
 177         output_table.set_col_spacings (2);
 178         button_table.set_border_width (5);
 179         output_table.set_border_width (5);
 180
 181         hpacker.set_border_width (10);
 182
 183         bt_frame = manage (new Frame);
 184         bt_frame->set_name ("BaseFrame");
 185         bt_frame->add (button_table);
 186         hpacker.pack_start(*bt_frame, true, true);
 187
 188         box = manage (new VBox);
 189         box->set_border_width (5);
 190         box->set_spacing (1);
 191
 192         frame = manage (new Frame);
 193         frame->set_name ("BaseFrame");
 194         frame->set_label (_("Controls"));
 195         frame->add (*box);
 196         hpacker.pack_start(*frame, true, true);
 197
 198         /* find all ports. build control elements for all appropriate control ports */
 199
 200         for (i = 0; i < plugin->parameter_count(); ++i) {
 201
 202                 if (plugin->parameter_is_control (i)) {
 203
 204                         /* Don't show latency control ports */
 205
 206                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
 207                                 continue;
 208                         }
 209
 210                         ControlUI* cui;
 211
 212                         /* if we are scrollable, just use one long column */
 213
 214                         if (!is_scrollable) {
 215                                 if (x++ > 20){
 216                                         frame = manage (new Frame);
 217                                         frame->set_name ("BaseFrame");
 218                                         box = manage (new VBox);
 219
 220                                         box->set_border_width (5);
 221                                         box->set_spacing (1);
 222
 223                                         frame->add (*box);
 224                                         hpacker.pack_start(*frame,true,true);
 225
 226                                         x = 1;
 227                                 }
 228                         }
 229
 230                         boost::shared_ptr<ARDOUR::AutomationControl> c
 231                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 232                                         insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
 233
 234                         if ((cui = build_control_ui (i, c)) == 0) {
 235                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
 236                                 continue;
 237                         }
 238
 239                         if (cui->controller || cui->clickbox || cui->combo) {
 240
 241                                 box->pack_start (*cui, false, false);
 242
 243                         } else if (cui->button) {
 244
 245                                 if (button_row == button_rows) {
 246                                         button_row = 0;
 247                                         if (++button_col == button_cols) {
 248                                                 button_cols += 2;
 249                                                 button_table.resize (button_rows, button_cols);
 250                                         }
 251                                 }
 252
 253                                 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
 254                                                      FILL|EXPAND, FILL);
 255                                 button_row++;
 256
 257                         } else if (cui->display) {
 258
 259                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 260                                                      FILL|EXPAND, FILL);
 261
 262                                 // TODO: The meters should be divided into multiple rows
 263
 264                                 if (++output_col == output_cols) {
 265                                         output_cols ++;
 266                                         output_table.resize (output_rows, output_cols);
 267                                 }
 268
 269                                 /* old code, which divides meters into
 270                                  * columns first, rows later. New code divides into one row
 271
 272                                 if (output_row == output_rows) {
 273                                         output_row = 0;
 274                                         if (++output_col == output_cols) {
 275                                                 output_cols += 2;
 276                                                 output_table.resize (output_rows, output_cols);
 277                                         }
 278                                 }
 279
 280                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 281                                                      FILL|EXPAND, FILL);
 282
 283                                 output_row++;
 284                                 */
 285                         }
 286
 287                         /* HACK: ideally the preferred height would be queried from
 288                            the complete hpacker, but I can't seem to get that
 289                            information in time, so this is an estimation
 290                         */
 291
 292                         prefheight += 30;
 293
 294                 }
 295         }
 296
 297         if (box->children().empty()) {
 298                 hpacker.remove (*frame);
 299         }
 300
 301         if (button_table.children().empty()) {
 302                 hpacker.remove (*bt_frame);
 303         }
 304
 305         if (!output_table.children().empty()) {
 306                 frame = manage (new Frame);
 307                 frame->set_name ("BaseFrame");
 308                 frame->add (output_table);
 309                 hpacker.pack_end (*frame, true, true);
 310         }
 311
 312         output_update ();
 313
 314         output_table.show_all ();
 315         button_table.show_all ();
 316 }
 317
 318 GenericPluginUI::ControlUI::ControlUI ()
 319         : automate_button (X_("")) // force creation of a label
 320 {
 321         automate_button.set_name ("PluginAutomateButton");
 322         ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
 323
 324         /* XXX translators: use a string here that will be at least as long
 325            as the longest automation label (see ::automation_state_changed()
 326            below). be sure to include a descender.
 327         */
 328
 329         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
 330
 331         ignore_change = 0;
 332         display = 0;
 333         button = 0;
 334         clickbox = 0;
 335         meterinfo = 0;
 336 }
 337
 338 GenericPluginUI::ControlUI::~ControlUI()
 339 {
 340         if (meterinfo) {
 341                 delete meterinfo->meter;
 342                 delete meterinfo;
 343         }
 344 }
 345
 346 void
 347 GenericPluginUI::automation_state_changed (ControlUI* cui)
 348 {
 349         /* update button label */
 350
 351         // don't lock to avoid deadlock because we're triggered by
 352         // AutomationControl::Changed() while the automation lock is taken
 353         switch (insert->get_parameter_automation_state (cui->parameter())
 354                         & (Off|Play|Touch|Write)) {
 355         case Off:
 356                 cui->automate_button.set_label (_("Manual"));
 357                 break;
 358         case Play:
 359                 cui->automate_button.set_label (_("Play"));
 360                 break;
 361         case Write:
 362                 cui->automate_button.set_label (_("Write"));
 363                 break;
 364         case Touch:
 365                 cui->automate_button.set_label (_("Touch"));
 366                 break;
 367         default:
 368                 cui->automate_button.set_label (_("???"));
 369                 break;
 370         }
 371 }
 372
 373
 374 static void integer_printer (char buf[32], Adjustment &adj, void */*arg*/)
 375 {
 376         snprintf (buf, 32, "%.0f", adj.get_value());
 377 }
 378
 379 void
 380 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
 381 {
 382         plugin->print_parameter (param, buf, len);
 383 }
 384
 385 GenericPluginUI::ControlUI*
 386 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
 387 {
 388         ControlUI* control_ui = 0;
 389         if (!mcontrol) {
 390                 return control_ui;
 391         }
 392
 393         Plugin::ParameterDescriptor desc;
 394
 395         plugin->get_parameter_descriptor (port_index, desc);
 396
 397         control_ui = manage (new ControlUI ());
 398         control_ui->combo = 0;
 399         control_ui->combo_map = 0;
 400         control_ui->control = mcontrol;
 401         control_ui->update_pending = false;
 402         control_ui->label.set_text (desc.label);
 403         control_ui->label.set_alignment (0.0, 0.5);
 404         control_ui->label.set_name ("PluginParameterLabel");
 405
 406         control_ui->set_spacing (5);
 407
 408         Gtk::Requisition req (control_ui->automate_button.size_request());
 409
 410         if (plugin->parameter_is_input (port_index)) {
 411
 412                 boost::shared_ptr<LadspaPlugin> lp;
 413 #ifdef HAVE_SLV2
 414                 boost::shared_ptr<LV2Plugin> lv2p;
 415 #endif
 416                 if ((lp = boost::dynamic_pointer_cast<LadspaPlugin>(plugin)) != 0) {
 417
 418                         // FIXME: not all plugins have a numeric unique ID
 419                         uint32_t id = atol (lp->unique_id().c_str());
 420                         lrdf_defaults* defaults = lrdf_get_scale_values(id, port_index);
 421
 422                         if (defaults && defaults->count > 0)    {
 423
 424                                 control_ui->combo = new Gtk::ComboBoxText;
 425                                 //control_ui->combo->set_value_in_list(true, false);
 426                                 set_popdown_strings (*control_ui->combo, setup_scale_values(port_index, control_ui));
 427                                 control_ui->combo->signal_changed().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed), control_ui));
 428                                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 429                                 control_ui->pack_start(control_ui->label, true, true);
 430                                 control_ui->pack_start(*control_ui->combo, false, true);
 431
 432                                 update_control_display(control_ui);
 433
 434                                 lrdf_free_setting_values(defaults);
 435                                 return control_ui;
 436                         }
 437
 438 #ifdef HAVE_SLV2
 439                 } else if ((lv2p = boost::dynamic_pointer_cast<LV2Plugin>(plugin)) != 0) {
 440
 441                         SLV2Port port = lv2p->slv2_port(port_index);
 442                         SLV2ScalePoints points = slv2_port_get_scale_points(lv2p->slv2_plugin(), port);
 443
 444                         if (points) {
 445                                 control_ui->combo = new Gtk::ComboBoxText;
 446                                 //control_ui->combo->set_value_in_list(true, false);
 447                                 set_popdown_strings (*control_ui->combo, setup_scale_values(port_index, control_ui));
 448                                 control_ui->combo->signal_changed().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed), control_ui));
 449                                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 450                                 control_ui->pack_start(control_ui->label, true, true);
 451                                 control_ui->pack_start(*control_ui->combo, false, true);
 452
 453                                 update_control_display(control_ui);
 454
 455                                 slv2_scale_points_free(points);
 456                                 return control_ui;
 457                         }
 458 #endif
 459                 }
 460
 461                 if (desc.toggled) {
 462
 463                         /* Build a button */
 464
 465                         control_ui->button = manage (new ToggleButton ());
 466                         control_ui->button->set_name ("PluginEditorButton");
 467                         control_ui->button->set_size_request (20, 20);
 468
 469                         control_ui->pack_start (control_ui->label, true, true);
 470                         control_ui->pack_start (*control_ui->button, false, true);
 471                         control_ui->pack_start (control_ui->automate_button, false, false);
 472
 473                         control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
 474                         control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 475
 476                         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
 477                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 478
 479                         if (plugin->get_parameter (port_index) > 0.5){
 480                                 control_ui->button->set_active(true);
 481                         }
 482
 483                         automation_state_changed (control_ui);
 484
 485                         return control_ui;
 486                 }
 487
 488                 /* create the controller */
 489
 490                 control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
 491
 492                 /* XXX this code is not right yet, because it doesn't handle
 493                    the absence of bounds in any sensible fashion.
 494                 */
 495
 496                 Adjustment* adj = control_ui->controller->adjustment();
 497                 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
 498
 499                 adj->set_lower (pc->user_to_ui (desc.lower));
 500                 adj->set_upper (pc->user_to_ui (desc.upper));
 501
 502                 adj->set_step_increment (desc.step);
 503                 adj->set_page_increment (desc.largestep);
 504
 505                 if (desc.integer_step) {
 506                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
 507                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
 508                         control_ui->clickbox->set_print_func (integer_printer, 0);
 509                 } else {
 510                         //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 511
 512                         control_ui->controller->set_size_request (200, req.height);
 513                         control_ui->controller->set_name (X_("PluginSlider"));
 514                         control_ui->controller->set_style (BarController::LeftToRight);
 515                         control_ui->controller->set_use_parent (true);
 516                         control_ui->controller->set_logarithmic (desc.logarithmic);
 517
 518                         control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
 519                         control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
 520
 521                 }
 522
 523                 adj->set_value (pc->plugin_to_ui (plugin->get_parameter (port_index)));
 524
 525                 /* XXX memory leak: SliderController not destroyed by ControlUI
 526                    destructor, and manage() reports object hierarchy
 527                    ambiguity.
 528                 */
 529
 530                 control_ui->pack_start (control_ui->label, true, true);
 531                 if (desc.integer_step) {
 532                         control_ui->pack_start (*control_ui->clickbox, false, false);
 533                 } else {
 534                         control_ui->pack_start (*control_ui->controller, false, false);
 535                 }
 536
 537                 control_ui->pack_start (control_ui->automate_button, false, false);
 538                 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 539
 540                 automation_state_changed (control_ui);
 541
 542                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_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                 input_controls.push_back (control_ui);
 546
 547         } else if (plugin->parameter_is_output (port_index)) {
 548
 549                 control_ui->display = manage (new EventBox);
 550                 control_ui->display->set_name ("ParameterValueDisplay");
 551
 552                 control_ui->display_label = manage (new Label);
 553
 554                 control_ui->display_label->set_name ("ParameterValueDisplay");
 555
 556                 control_ui->display->add (*control_ui->display_label);
 557                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
 558
 559                 control_ui->display->show_all ();
 560
 561                 /* set up a meter */
 562                 /* TODO: only make a meter if the port is Hinted for it */
 563
 564                 MeterInfo * info = new MeterInfo(port_index);
 565                 control_ui->meterinfo = info;
 566
 567                 info->meter = new FastMeter (5, 5, FastMeter::Vertical);
 568
 569                 info->min_unbound = desc.min_unbound;
 570                 info->max_unbound = desc.max_unbound;
 571
 572                 info->min = desc.lower;
 573                 info->max = desc.upper;
 574
 575                 control_ui->vbox = manage (new VBox);
 576                 control_ui->hbox = manage (new HBox);
 577
 578                 control_ui->label.set_angle(90);
 579                 control_ui->hbox->pack_start (control_ui->label, false, false);
 580                 control_ui->hbox->pack_start (*info->meter, false, false);
 581
 582                 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
 583
 584                 control_ui->vbox->pack_start (*control_ui->display, false, false);
 585
 586                 control_ui->pack_start (*control_ui->vbox);
 587
 588                 control_ui->meterinfo->meter->show_all();
 589                 control_ui->meterinfo->packed = true;
 590
 591                 output_controls.push_back (control_ui);
 592         }
 593
 594         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 595
 596         return control_ui;
 597 }
 598
 599 void
 600 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
 601 {
 602         cui->control->start_touch (cui->control->session().transport_frame());
 603 }
 604
 605 void
 606 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
 607 {
 608         cui->control->stop_touch (false, cui->control->session().transport_frame());
 609 }
 610
 611 void
 612 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
 613 {
 614         using namespace Menu_Helpers;
 615
 616         if (automation_menu == 0) {
 617                 automation_menu = manage (new Menu);
 618                 automation_menu->set_name ("ArdourContextMenu");
 619         }
 620
 621         MenuList& items (automation_menu->items());
 622
 623         items.clear ();
 624         items.push_back (MenuElem (_("Manual"),
 625                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Off, cui)));
 626         items.push_back (MenuElem (_("Play"),
 627                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
 628         items.push_back (MenuElem (_("Write"),
 629                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
 630         items.push_back (MenuElem (_("Touch"),
 631                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
 632
 633         automation_menu->popup (1, gtk_get_current_event_time());
 634 }
 635
 636 void
 637 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
 638 {
 639         insert->set_parameter_automation_state (cui->parameter(), state);
 640 }
 641
 642 void
 643 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
 644 {
 645         float val = cui->control->get_value();
 646
 647         if (!cui->ignore_change) {
 648                 if (val > 0.5) {
 649                         cui->button->set_active (true);
 650                 } else {
 651                         cui->button->set_active (false);
 652                 }
 653         }
 654 }
 655
 656 void
 657 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
 658 {
 659         if (!cui->update_pending) {
 660                 cui->update_pending = true;
 661                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
 662         }
 663 }
 664
 665 void
 666 GenericPluginUI::update_control_display (ControlUI* cui)
 667 {
 668         /* XXX how do we handle logarithmic stuff here ? */
 669
 670         cui->update_pending = false;
 671
 672         float val = cui->control->get_value();
 673
 674         cui->ignore_change++;
 675
 676         if (cui->combo) {
 677                 std::map<string,float>::iterator it;
 678                 for (it = cui->combo_map->begin(); it != cui->combo_map->end(); ++it) {
 679                         if (it->second == val) {
 680                                 cui->combo->set_active_text(it->first);
 681                                 break;
 682                         }
 683                 }
 684         } else if (cui->button) {
 685
 686                 if (val > 0.5) {
 687                         cui->button->set_active (true);
 688                 } else {
 689                         cui->button->set_active (false);
 690                 }
 691         }
 692
 693         if( cui->controller ) {
 694             cui->controller->display_effective_value();
 695         }
 696
 697
 698         /*} else {
 699                 if (cui->logarithmic) {
 700                         val = log(val);
 701                 }
 702                 if (val != cui->adjustment->get_value()) {
 703                         cui->adjustment->set_value (val);
 704                 }
 705         }*/
 706         cui->ignore_change--;
 707 }
 708
 709 void
 710 GenericPluginUI::control_port_toggled (ControlUI* cui)
 711 {
 712         cui->ignore_change++;
 713         insert->automation_control (cui->parameter())->set_value (cui->button->get_active());
 714         cui->ignore_change--;
 715 }
 716
 717 void
 718 GenericPluginUI::control_combo_changed (ControlUI* cui)
 719 {
 720         if (!cui->ignore_change) {
 721                 string value = cui->combo->get_active_text();
 722                 std::map<string,float> mapping = *cui->combo_map;
 723                 insert->automation_control(cui->parameter())->set_value(mapping[value]);
 724         }
 725 }
 726
 727 void
 728 GenericPluginUI::processor_active_changed (boost::weak_ptr<Processor> weak_processor)
 729 {
 730         ENSURE_GUI_THREAD (*this, &GenericPluginUI::processor_active_changed, weak_processor)
 731
 732         boost::shared_ptr<Processor> processor = weak_processor.lock();
 733
 734         bypass_button.set_active (!processor || !processor->active());
 735 }
 736
 737 bool
 738 GenericPluginUI::start_updating (GdkEventAny*)
 739 {
 740         if (output_controls.size() > 0 ) {
 741                 screen_update_connection.disconnect();
 742                 screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
 743                         (sigc::mem_fun(*this, &GenericPluginUI::output_update));
 744         }
 745         return false;
 746 }
 747
 748 bool
 749 GenericPluginUI::stop_updating (GdkEventAny*)
 750 {
 751         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
 752                 (*i)->controller->stop_updating ();
 753         }
 754
 755         if (output_controls.size() > 0 ) {
 756                 screen_update_connection.disconnect();
 757         }
 758
 759         return false;
 760 }
 761
 762 void
 763 GenericPluginUI::output_update ()
 764 {
 765         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
 766                 float val = plugin->get_parameter ((*i)->parameter().id());
 767                 char buf[32];
 768                 snprintf (buf, sizeof(buf), "%.2f", val);
 769                 (*i)->display_label->set_text (buf);
 770
 771                 /* autoscaling for the meter */
 772                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
 773
 774                         if (val < (*i)->meterinfo->min) {
 775                                 if ((*i)->meterinfo->min_unbound)
 776                                         (*i)->meterinfo->min = val;
 777                                 else
 778                                         val = (*i)->meterinfo->min;
 779                         }
 780
 781                         if (val > (*i)->meterinfo->max) {
 782                                 if ((*i)->meterinfo->max_unbound)
 783                                         (*i)->meterinfo->max = val;
 784                                 else
 785                                         val = (*i)->meterinfo->max;
 786                         }
 787
 788                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
 789                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
 790                                 (*i)->meterinfo->meter->set (lval );
 791                         }
 792                 }
 793         }
 794 }
 795
 796 vector<string>
 797 GenericPluginUI::setup_scale_values(guint32 port_index, ControlUI* cui)
 798 {
 799         vector<string> enums;
 800         boost::shared_ptr<LadspaPlugin> lp;
 801 #ifdef HAVE_SLV2
 802         boost::shared_ptr<LV2Plugin> lv2p;
 803 #endif
 804
 805         if ((lp = boost::dynamic_pointer_cast<LadspaPlugin>(plugin)) != 0) {
 806                 // all LADPSA plugins have a numeric unique ID
 807                 uint32_t id = atol (lp->unique_id().c_str());
 808
 809                 cui->combo_map = new std::map<string, float>;
 810                 lrdf_defaults* defaults = lrdf_get_scale_values(id, port_index);
 811                 if (defaults)   {
 812                         for (uint32_t i = 0; i < defaults->count; ++i) {
 813                                 enums.push_back(defaults->items[i].label);
 814                                 pair<string, float> newpair;
 815                                 newpair.first = defaults->items[i].label;
 816                                 newpair.second = defaults->items[i].value;
 817                                 cui->combo_map->insert(newpair);
 818                         }
 819
 820                         lrdf_free_setting_values(defaults);
 821                 }
 822
 823 #ifdef HAVE_SLV2
 824         } else if ((lv2p = boost::dynamic_pointer_cast<LV2Plugin>(plugin)) != 0) {
 825
 826                 SLV2Port port = lv2p->slv2_port(port_index);
 827                 SLV2ScalePoints points = slv2_port_get_scale_points(lv2p->slv2_plugin(), port);
 828                 cui->combo_map = new std::map<string, float>;
 829
 830                 for (unsigned i=0; i < slv2_scale_points_size(points); ++i) {
 831                         SLV2ScalePoint p = slv2_scale_points_get_at(points, i);
 832                         SLV2Value label = slv2_scale_point_get_label(p);
 833                         SLV2Value value = slv2_scale_point_get_value(p);
 834                         if (label && (slv2_value_is_float(value) || slv2_value_is_int(value))) {
 835                                 enums.push_back(slv2_value_as_string(label));
 836                                 pair<string, float> newpair;
 837                                 newpair.first = slv2_value_as_string(label);
 838                                 newpair.second = slv2_value_as_float(value);
 839                                 cui->combo_map->insert(newpair);
 840                         }
 841                 }
 842
 843                 slv2_scale_points_free(points);
 844 #endif
 845         }
 846
 847
 848         return enums;
 849 }
 850
 851
 852