gtk2_ardour/generic_pluginui.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <climits>
  25 #include <cerrno>
  26 #include <cmath>
  27 #include <string>
  28 #include <vector>
  29
  30 #include "pbd/stl_delete.h"
  31 #include "pbd/xml++.h"
  32 #include "pbd/failed_constructor.h"
  33
  34 #include <gtkmm2ext/click_box.h>
  35 #include <gtkmm2ext/fastmeter.h>
  36 #include <gtkmm2ext/barcontroller.h>
  37 #include <gtkmm2ext/utils.h>
  38 #include <gtkmm2ext/doi.h>
  39 #include <gtkmm2ext/slider_controller.h>
  40
  41 #include "ardour/plugin.h"
  42 #include "ardour/plugin_insert.h"
  43 #include "ardour/session.h"
  44 #include "ardour/value_as_string.h"
  45
  46 #include "prompter.h"
  47 #include "plugin_ui.h"
  48 #include "gui_thread.h"
  49 #include "automation_controller.h"
  50 #include "timers.h"
  51 #include "tooltips.h"
  52 #include "ui_config.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtkmm2ext;
  60 using namespace Gtk;
  61 using namespace ARDOUR_UI_UTILS;
  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         HBox* automation_hbox = manage (new HBox);
  83         smaller_hbox->set_spacing (4);
  84         automation_hbox->set_spacing (6);
  85         Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
  86         combo_label->set_use_markup (true);
  87
  88         latency_button.signal_clicked.connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
  89         set_latency_label ();
  90
  91         smaller_hbox->pack_start (latency_button, false, false, 4);
  92         smaller_hbox->pack_start (_preset_combo, false, false);
  93         smaller_hbox->pack_start (_preset_modified, false, false);
  94         smaller_hbox->pack_start (add_button, false, false);
  95         smaller_hbox->pack_start (save_button, false, false);
  96         smaller_hbox->pack_start (delete_button, false, false);
  97         smaller_hbox->pack_start (reset_button, false, false, 4);
  98         smaller_hbox->pack_start (bypass_button, false, true, 4);
  99
 100         automation_manual_all_button.set_text(_("Manual"));
 101         automation_manual_all_button.set_name (X_("generic button"));
 102         automation_play_all_button.set_text(_("Play"));
 103         automation_play_all_button.set_name (X_("generic button"));
 104         automation_write_all_button.set_text(_("Write"));
 105         automation_write_all_button.set_name (X_("generic button"));
 106         automation_touch_all_button.set_text(_("Touch"));
 107         automation_touch_all_button.set_name (X_("generic button"));
 108
 109         Label* l = manage (new Label (_("All Automation")));
 110         l->set_alignment (1.0, 0.5);
 111         automation_hbox->pack_start (*l, true, true);
 112         automation_hbox->pack_start (automation_manual_all_button, false, false);
 113         automation_hbox->pack_start (automation_play_all_button, false, false);
 114         automation_hbox->pack_start (automation_write_all_button, false, false);
 115         automation_hbox->pack_start (automation_touch_all_button, false, false);
 116
 117         constraint_hbox->set_spacing (5);
 118         constraint_hbox->set_homogeneous (false);
 119
 120         VBox* v1_box = manage (new VBox);
 121         VBox* v2_box = manage (new VBox);
 122         pack_end (plugin_analysis_expander, false, false);
 123         if (!plugin->get_docs().empty()) {
 124                 pack_end (description_expander, false, false);
 125         }
 126
 127         v1_box->set_spacing (6);
 128         v1_box->pack_start (*smaller_hbox, false, true);
 129         v1_box->pack_start (*automation_hbox, false, true);
 130         v2_box->pack_start (focus_button, false, true);
 131
 132         main_contents.pack_start (settings_box, false, false);
 133
 134         constraint_hbox->pack_end (*v2_box, false, false);
 135         constraint_hbox->pack_end (*v1_box, false, false);
 136
 137         main_contents.pack_start (*constraint_hbox, false, false);
 138
 139         if (is_scrollable ) {
 140                 scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 141                 scroller.set_name ("PluginEditor");
 142                 scroller_view.set_name("PluginEditor");
 143                 scroller_view.add (hpacker);
 144                 scroller.add (scroller_view);
 145
 146                 main_contents.pack_start (scroller, true, true);
 147
 148         } else {
 149                 main_contents.pack_start (hpacker, false, false);
 150         }
 151
 152         pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
 153
 154         bypass_button.set_active (!pi->active());
 155
 156         prefheight = 0;
 157         build ();
 158 }
 159
 160 GenericPluginUI::~GenericPluginUI ()
 161 {
 162         if (output_controls.size() > 0) {
 163                 screen_update_connection.disconnect();
 164         }
 165 }
 166
 167 // Some functions for calculating the 'similarity' of two plugin
 168 // control labels.
 169
 170 static int get_number(string label) {
 171 static const char *digits = "0123456789";
 172 int value = -1;
 173
 174         std::size_t first_digit_pos = label.find_first_of(digits);
 175         if (first_digit_pos != string::npos) {
 176                 // found some digits: there's a number in there somewhere
 177                 stringstream s;
 178                 s << label.substr(first_digit_pos);
 179                 s >> value;
 180         }
 181         return value;
 182 }
 183
 184 static int match_or_digit(char c1, char c2) {
 185         return c1 == c2 || (isdigit(c1) && isdigit(c2));
 186 }
 187
 188 static std::size_t matching_chars_at_head(const string s1, const string s2) {
 189 std::size_t length, n = 0;
 190
 191         length = min(s1.length(), s2.length());
 192         while (n < length) {
 193                 if (!match_or_digit(s1[n], s2[n]))
 194                         break;
 195                 n++;
 196         }
 197         return n;
 198 }
 199
 200 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
 201 std::size_t s1pos, s2pos, n = 0;
 202
 203         s1pos = s1.length();
 204         s2pos = s2.length();
 205         while (s1pos-- > 0 && s2pos-- > 0) {
 206                 if (!match_or_digit(s1[s1pos], s2[s2pos])       )
 207                         break;
 208                 n++;
 209         }
 210         return n;
 211 }
 212
 213 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
 214 static const float default_similarity_threshold = 0.3;
 215
 216 void
 217 GenericPluginUI::build ()
 218 {
 219         guint32 i = 0;
 220         guint32 x = 0;
 221         Frame* frame;
 222         Frame* bt_frame;
 223         VBox* box;
 224         int output_row, output_col;
 225         int button_row, button_col;
 226         int output_rows, output_cols;
 227         int button_rows, button_cols;
 228
 229         hpacker.set_spacing (10);
 230
 231         output_rows = initial_output_rows;
 232         output_cols = initial_output_cols;
 233         button_rows = initial_button_rows;
 234         button_cols = initial_button_cols;
 235         output_row = 0;
 236         button_row = 0;
 237         output_col = 0;
 238         button_col = 0;
 239
 240         button_table.set_homogeneous (false);
 241         button_table.set_row_spacings (2);
 242         button_table.set_col_spacings (2);
 243         output_table.set_homogeneous (true);
 244         output_table.set_row_spacings (2);
 245         output_table.set_col_spacings (2);
 246         button_table.set_border_width (5);
 247         output_table.set_border_width (5);
 248
 249         hpacker.set_border_width (10);
 250
 251         bt_frame = manage (new Frame);
 252         bt_frame->set_name ("BaseFrame");
 253         bt_frame->set_label (_("Switches"));
 254         bt_frame->add (button_table);
 255         hpacker.pack_start(*bt_frame, true, true);
 256
 257         box = manage (new VBox);
 258         box->set_border_width (5);
 259         box->set_spacing (1);
 260
 261         frame = manage (new Frame);
 262         frame->set_name ("BaseFrame");
 263         frame->set_label (_("Controls"));
 264         frame->add (*box);
 265         hpacker.pack_start(*frame, true, true);
 266
 267         std::vector<ControlUI *> control_uis;
 268
 269         // Build a ControlUI for each control port
 270         for (i = 0; i < plugin->parameter_count(); ++i) {
 271
 272                 if (plugin->parameter_is_control (i)) {
 273
 274                         /* Don't show latency control ports */
 275
 276                         const Evoral::Parameter param(PluginAutomation, 0, i);
 277                         if (plugin->describe_parameter (param) == X_("latency")) {
 278                                 continue;
 279                         }
 280
 281                         if (plugin->describe_parameter (param) == X_("hidden")) {
 282                                 continue;
 283                         }
 284
 285                         const float value = plugin->get_parameter(i);
 286
 287                         ControlUI* cui;
 288
 289                         boost::shared_ptr<ARDOUR::AutomationControl> c
 290                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 291                                         insert->control(param));
 292
 293                         ParameterDescriptor desc;
 294                         plugin->get_parameter_descriptor(i, desc);
 295                         if ((cui = build_control_ui (param, desc, c, value, plugin->parameter_is_input(i))) == 0) {
 296                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
 297                                 continue;
 298                         }
 299
 300                         const std::string param_docs = plugin->get_parameter_docs(i);
 301                         if (!param_docs.empty()) {
 302                                 set_tooltip(cui, param_docs.c_str());
 303                         }
 304
 305                         control_uis.push_back(cui);
 306                         input_controls_with_automation.push_back (cui);
 307                 }
 308         }
 309
 310         // Build a ControlUI for each property
 311         const Plugin::PropertyDescriptors& descs = plugin->get_supported_properties();
 312         for (Plugin::PropertyDescriptors::const_iterator d = descs.begin(); d != descs.end(); ++d) {
 313                 const ParameterDescriptor& desc = d->second;
 314                 const Evoral::Parameter    param(PluginPropertyAutomation, 0, desc.key);
 315
 316                 boost::shared_ptr<ARDOUR::AutomationControl> c
 317                         = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 318                                 insert->control(param));
 319
 320                 if (!c) {
 321                         error << string_compose(_("Plugin Editor: no control for property %1"), desc.key) << endmsg;
 322                         continue;
 323                 }
 324
 325                 ControlUI* cui = build_control_ui(param, desc, c, c->get_value(), true);
 326                 if (!cui) {
 327                         error << string_compose(_("Plugin Editor: could not build control element for property %1"),
 328                                                 desc.key) << endmsg;
 329                         continue;
 330                 }
 331
 332                 control_uis.push_back(cui);
 333         }
 334         if (!descs.empty()) {
 335                 plugin->announce_property_values();
 336         }
 337
 338         // Add special controls to UI, and build list of normal controls to be layed out later
 339         std::vector<ControlUI *> cui_controls_list;
 340         for (i = 0; i < control_uis.size(); ++i) {
 341                 ControlUI* cui = control_uis[i];
 342
 343                 if (cui->controller || cui->clickbox || cui->combo) {
 344                         // Get all of the controls into a list, so that
 345                         // we can lay them out a bit more nicely later.
 346                         cui_controls_list.push_back(cui);
 347                 } else if (cui->button || cui->file_button) {
 348
 349                         if (!is_scrollable && button_row == button_rows) {
 350                                 button_row = 0;
 351                                 if (++button_col == button_cols) {
 352                                         button_cols += 2;
 353                                         button_table.resize (button_rows, button_cols);
 354                                 }
 355                         }
 356
 357                         button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
 358                                              FILL|EXPAND, FILL);
 359                         button_row++;
 360
 361                 } else if (cui->display) {
 362
 363                         output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 364                                              FILL|EXPAND, FILL);
 365
 366                         // TODO: The meters should be divided into multiple rows
 367
 368                         if (++output_col == output_cols) {
 369                                 output_cols ++;
 370                                 output_table.resize (output_rows, output_cols);
 371                         }
 372                 }
 373         }
 374
 375         // Iterate over the list of controls to find which adjacent controls
 376         // are similar enough to be grouped together.
 377
 378         string label, previous_label = "";
 379         std::vector<int> numbers_in_labels(cui_controls_list.size());
 380
 381         std::vector<float> similarity_scores(cui_controls_list.size());
 382         float most_similar = 0.0, least_similar = 1.0;
 383
 384         i = 0;
 385         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 386                 label = (*cuip)->label.get_text();
 387                 numbers_in_labels[i] = get_number(label);
 388
 389                 if (i > 0) {
 390                         // A hand-wavy calculation of how similar this control's
 391                         // label is to the previous.
 392                         similarity_scores[i] =
 393                                 (float) (
 394                                         ( matching_chars_at_head(label, previous_label) +
 395                                           matching_chars_at_tail(label, previous_label) +
 396                                           1
 397                                         )
 398                                 ) / (label.length() + previous_label.length());
 399                         if (numbers_in_labels[i] >= 0) {
 400                                 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
 401                         }
 402                         least_similar = min(least_similar, similarity_scores[i]);
 403                         most_similar  = max(most_similar, similarity_scores[i]);
 404                 } else {
 405                         similarity_scores[0] = 1.0;
 406                 }
 407
 408                 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
 409                 previous_label = label;
 410         }
 411
 412
 413         // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
 414         float similarity_threshold;
 415
 416         if (most_similar > 1.0) {
 417                 similarity_threshold = default_similarity_threshold;
 418         } else {
 419                 similarity_threshold = most_similar - (1 - default_similarity_threshold);
 420         }
 421
 422         // Now iterate over the list of controls to display them, placing an
 423         // HSeparator between controls of less than a certain similarity, and
 424         // starting a new column when necessary.
 425
 426         i = 0;
 427         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 428
 429                 ControlUI* cui = *cuip;
 430
 431                 if (!is_scrollable) {
 432                         x++;
 433                 }
 434
 435                 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
 436                         if (x > min_controls_per_column) {
 437                                 frame = manage (new Frame);
 438                                 frame->set_name ("BaseFrame");
 439                                 frame->set_label (_("Controls"));
 440                                 box = manage (new VBox);
 441                                 box->set_border_width (5);
 442                                 box->set_spacing (1);
 443                                 frame->add (*box);
 444                                 hpacker.pack_start(*frame, true, true);
 445                                 x = 0;
 446                         } else {
 447                                 HSeparator *split = new HSeparator();
 448                                 split->set_size_request(-1, 5);
 449                                 box->pack_start(*split, false, false, 0);
 450                         }
 451
 452                 }
 453                 box->pack_start (*cui, false, false);
 454         }
 455
 456         if (is_scrollable) {
 457                 prefheight = 30 * i;
 458         }
 459
 460         if (box->children().empty()) {
 461                 hpacker.remove (*frame);
 462         }
 463
 464         if (button_table.children().empty()) {
 465                 hpacker.remove (*bt_frame);
 466         }
 467
 468         if (!output_table.children().empty()) {
 469                 frame = manage (new Frame);
 470                 frame->set_name ("BaseFrame");
 471                 frame->set_label(_("Meters"));
 472                 frame->add (output_table);
 473                 hpacker.pack_end (*frame, true, true);
 474         }
 475
 476         output_update ();
 477
 478         output_table.show_all ();
 479         button_table.show_all ();
 480
 481         automation_manual_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Off));
 482         automation_play_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Play));
 483         automation_write_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Write));
 484         automation_touch_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Touch));
 485 }
 486
 487 GenericPluginUI::ControlUI::ControlUI (const Evoral::Parameter& p)
 488         : param(p)
 489         , automate_button (X_("")) // force creation of a label
 490         , file_button(NULL)
 491 {
 492         automate_button.set_name ("PluginAutomateButton");
 493         set_tooltip (automate_button, _("Automation control"));
 494
 495         /* XXX translators: use a string here that will be at least as long
 496            as the longest automation label (see ::automation_state_changed()
 497            below). be sure to include a descender.
 498         */
 499
 500         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
 501
 502         ignore_change = 0;
 503         display = 0;
 504         button = 0;
 505         clickbox = 0;
 506         meterinfo = 0;
 507 }
 508
 509 GenericPluginUI::ControlUI::~ControlUI()
 510 {
 511         if (meterinfo) {
 512                 delete meterinfo->meter;
 513                 delete meterinfo;
 514         }
 515 }
 516
 517 void
 518 GenericPluginUI::automation_state_changed (ControlUI* cui)
 519 {
 520         /* update button label */
 521
 522         // don't lock to avoid deadlock because we're triggered by
 523         // AutomationControl::Changed() while the automation lock is taken
 524         switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
 525         case ARDOUR::Off:
 526                 cui->automate_button.set_label (S_("Automation|Manual"));
 527                 break;
 528         case Play:
 529                 cui->automate_button.set_label (_("Play"));
 530                 break;
 531         case Write:
 532                 cui->automate_button.set_label (_("Write"));
 533                 break;
 534         case Touch:
 535                 cui->automate_button.set_label (_("Touch"));
 536                 break;
 537         default:
 538                 cui->automate_button.set_label (_("???"));
 539                 break;
 540         }
 541 }
 542
 543 bool
 544 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 545 {
 546         float const        v   = cui->control->interface_to_internal(adj.get_value ());
 547         const std::string& str = ARDOUR::value_as_string(cui->control->desc(), Variant(v));
 548         const size_t       len = str.copy(buf, 31);
 549         buf[len] = '\0';
 550         return true;
 551 }
 552
 553 bool
 554 GenericPluginUI::midinote_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 555 {
 556         float const        v   = cui->control->interface_to_internal(adj.get_value ());
 557         const std::string& str = ARDOUR::value_as_string(cui->control->desc(), Variant(v));
 558         const size_t       len = str.copy(buf, 31);
 559         buf[len] = '\0';
 560         return true;
 561 }
 562
 563 void
 564 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
 565 {
 566         plugin->print_parameter (param, buf, len);
 567 }
 568
 569 /** Build a ControlUI for a parameter/property.
 570  * Note that mcontrol may be NULL for outputs.
 571  */
 572 GenericPluginUI::ControlUI*
 573 GenericPluginUI::build_control_ui (const Evoral::Parameter&             param,
 574                                    const ParameterDescriptor&           desc,
 575                                    boost::shared_ptr<AutomationControl> mcontrol,
 576                                    float                                value,
 577                                    bool                                 is_input)
 578 {
 579         ControlUI* control_ui = 0;
 580
 581         control_ui = manage (new ControlUI (param));
 582         control_ui->combo = 0;
 583         control_ui->control = mcontrol;
 584         control_ui->update_pending = false;
 585         control_ui->label.set_text (desc.label);
 586         control_ui->label.set_alignment (0.0, 0.5);
 587         control_ui->label.set_name ("PluginParameterLabel");
 588
 589         control_ui->set_spacing (5);
 590
 591         Gtk::Requisition req (control_ui->automate_button.size_request());
 592
 593         if (is_input) {
 594
 595                 /* See if there any named values for our input value */
 596                 control_ui->scale_points = desc.scale_points;
 597
 598                 /* If this parameter is an integer, work out the number of distinct values
 599                    it can take on (assuming that lower and upper values are allowed).
 600                 */
 601                 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
 602
 603                 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
 604
 605                         /* Either:
 606                          *   a) There is a label for each possible value of this input, or
 607                          *   b) This port is marked as being an enumeration.
 608                          */
 609
 610                         std::vector<std::string> labels;
 611                         for (
 612                                 ARDOUR::ScalePoints::const_iterator i = control_ui->scale_points->begin();
 613                                 i != control_ui->scale_points->end();
 614                                 ++i) {
 615
 616                                 labels.push_back(i->first);
 617                         }
 618
 619                         control_ui->combo = new Gtk::ComboBoxText();
 620                         set_popdown_strings(*control_ui->combo, labels);
 621                         control_ui->combo->signal_changed().connect(
 622                                 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
 623                                             control_ui));
 624                         mcontrol->Changed.connect(control_connections, invalidator(*this),
 625                                                   boost::bind(&GenericPluginUI::ui_parameter_changed,
 626                                                               this, control_ui),
 627                                                   gui_context());
 628                         control_ui->pack_start(control_ui->label, true, true);
 629                         control_ui->pack_start(*control_ui->combo, false, true);
 630
 631                         update_control_display(control_ui);
 632
 633                         return control_ui;
 634                 }
 635
 636                 if (desc.toggled) {
 637
 638                         /* Build a button */
 639
 640                         control_ui->button = manage (new ToggleButton ());
 641                         control_ui->button->set_name ("PluginEditorButton");
 642                         control_ui->button->set_size_request (20, 20);
 643
 644                         control_ui->pack_start (control_ui->label, true, true);
 645                         control_ui->pack_start (*control_ui->button, false, true);
 646                         control_ui->pack_start (control_ui->automate_button, false, false);
 647
 648                         if (mcontrol->flags () & Controllable::NotAutomatable) {
 649                                 control_ui->automate_button.set_sensitive (false);
 650                                 set_tooltip(control_ui->automate_button, _("This control cannot be automated"));
 651                         } else {
 652                                 control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui));
 653                                 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 654                         }
 655
 656                         control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
 657
 658                         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
 659
 660                         if (value > 0.5){
 661                                 control_ui->button->set_active(true);
 662                         }
 663
 664                         automation_state_changed (control_ui);
 665
 666                         return control_ui;
 667                 }
 668
 669                 if (desc.datatype == Variant::PATH) {
 670
 671                         /* Build a file selector button */
 672
 673                         // Create/add controller
 674                         control_ui->file_button = manage(new Gtk::FileChooserButton(Gtk::FILE_CHOOSER_ACTION_OPEN));
 675                         control_ui->file_button->set_title(desc.label);
 676
 677                         control_ui->pack_start (control_ui->label, false, true);
 678                         control_ui->pack_start (*control_ui->file_button, true, true);
 679
 680                         // Connect signals (TODO: do this via the Control)
 681                         control_ui->file_button->signal_file_set().connect(
 682                                 sigc::bind(sigc::mem_fun(*this, &GenericPluginUI::set_property),
 683                                            desc, control_ui->file_button));
 684                         plugin->PropertyChanged.connect(*this, invalidator(*this),
 685                                                         boost::bind(&GenericPluginUI::property_changed, this, _1, _2),
 686                                                         gui_context());
 687
 688                         _property_controls.insert(std::make_pair(desc.key, control_ui->file_button));
 689                         control_ui->file_button = control_ui->file_button;
 690
 691                         return control_ui;
 692                 }
 693
 694                 /* create the controller */
 695
 696                 if (mcontrol) {
 697                         control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), desc, mcontrol);
 698                 }
 699
 700                 /* XXX this code is not right yet, because it doesn't handle
 701                    the absence of bounds in any sensible fashion.
 702                 */
 703
 704                 Adjustment* adj = control_ui->controller->adjustment();
 705
 706                 if (desc.integer_step) {
 707                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox", true);
 708                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
 709                         if (desc.unit == ParameterDescriptor::MIDI_NOTE) {
 710                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::midinote_printer), control_ui));
 711                         } else {
 712                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
 713                         }
 714                 } else {
 715                         //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 716
 717                         control_ui->controller->set_size_request (200, req.height);
 718                         control_ui->controller->set_name (X_("ProcessorControlSlider"));
 719
 720                 }
 721
 722                 adj->set_value (mcontrol->internal_to_interface(value));
 723
 724                 /* XXX memory leak: SliderController not destroyed by ControlUI
 725                    destructor, and manage() reports object hierarchy
 726                    ambiguity.
 727                 */
 728
 729                 control_ui->pack_start (control_ui->label, true, true);
 730                 if (desc.integer_step) {
 731                         control_ui->pack_start (*control_ui->clickbox, false, false);
 732                 } else {
 733                         control_ui->pack_start (*control_ui->controller, false, false);
 734                 }
 735
 736                 control_ui->pack_start (control_ui->automate_button, false, false);
 737
 738                 if (mcontrol->flags () & Controllable::NotAutomatable) {
 739                         control_ui->automate_button.set_sensitive (false);
 740                         set_tooltip(control_ui->automate_button, _("This control cannot be automated"));
 741                 } else {
 742                         control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui));
 743                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 744                 }
 745
 746                 automation_state_changed (control_ui);
 747
 748                 input_controls.push_back (control_ui);
 749                 input_controls_with_automation.push_back (control_ui);
 750
 751         } else if (!is_input) {
 752
 753                 control_ui->display = manage (new EventBox);
 754                 control_ui->display->set_name ("ParameterValueDisplay");
 755
 756                 control_ui->display_label = manage (new Label);
 757
 758                 control_ui->display_label->set_name ("ParameterValueDisplay");
 759
 760                 control_ui->display->add (*control_ui->display_label);
 761                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-888.8g", 2, 6);
 762
 763                 control_ui->display->show_all ();
 764
 765                 control_ui->vbox = manage (new VBox);
 766                 control_ui->vbox->set_spacing(3);
 767
 768                 if (desc.integer_step || desc.enumeration) {
 769                         control_ui->vbox->pack_end (*control_ui->display, false, false);
 770                         control_ui->vbox->pack_end (control_ui->label, false, false);
 771                 } else {
 772                         /* set up a meter for float ports */
 773
 774                         MeterInfo * info = new MeterInfo();
 775                         control_ui->meterinfo = info;
 776
 777                         info->meter = new FastMeter (
 778                                         5, 5, FastMeter::Vertical, 0,
 779                                         0x0000aaff,
 780                                         0x008800ff, 0x008800ff,
 781                                         0x00ff00ff, 0x00ff00ff,
 782                                         0xcccc00ff, 0xcccc00ff,
 783                                         0xffaa00ff, 0xffaa00ff,
 784                                         0xff0000ff,
 785                                         UIConfiguration::instance().color ("meter background bottom"),
 786                                         UIConfiguration::instance().color ("meter background top")
 787                                         );
 788
 789                         info->min_unbound = desc.min_unbound;
 790                         info->max_unbound = desc.max_unbound;
 791
 792                         info->min = desc.lower;
 793                         info->max = desc.upper;
 794
 795                         control_ui->label.set_angle(90);
 796
 797                         HBox* center =  manage (new HBox);
 798                         center->set_spacing(1);
 799                         center->pack_start (control_ui->label, false, false);
 800                         center->pack_start (*info->meter, false, false);
 801
 802                         control_ui->hbox = manage (new HBox);
 803                         control_ui->hbox->pack_start (*center, true, false);
 804
 805                         // horizontally center this hbox in the vbox
 806                         control_ui->vbox->pack_start (*control_ui->hbox, false, false);
 807
 808                         control_ui->meterinfo->meter->show_all();
 809                         control_ui->meterinfo->packed = true;
 810                         control_ui->vbox->pack_start (*control_ui->display, false, false);
 811                 }
 812
 813                 control_ui->pack_start (*control_ui->vbox);
 814
 815                 output_controls.push_back (control_ui);
 816         }
 817
 818         if (mcontrol) {
 819                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 820         }
 821
 822         return control_ui;
 823 }
 824
 825 void
 826 GenericPluginUI::astate_clicked (ControlUI* cui)
 827 {
 828         using namespace Menu_Helpers;
 829
 830         if (automation_menu == 0) {
 831                 automation_menu = manage (new Menu);
 832                 automation_menu->set_name ("ArdourContextMenu");
 833         }
 834
 835         MenuList& items (automation_menu->items());
 836
 837         items.clear ();
 838         items.push_back (MenuElem (S_("Automation|Manual"),
 839                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
 840         items.push_back (MenuElem (_("Play"),
 841                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
 842         items.push_back (MenuElem (_("Write"),
 843                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
 844         items.push_back (MenuElem (_("Touch"),
 845                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
 846
 847         automation_menu->popup (1, gtk_get_current_event_time());
 848 }
 849
 850 void
 851 GenericPluginUI::set_all_automation (AutoState as)
 852 {
 853         for (vector<ControlUI*>::iterator i = input_controls_with_automation.begin(); i != input_controls_with_automation.end(); ++i) {
 854                 if ((*i)->controller || (*i)->button) {
 855                         set_automation_state (as, (*i));
 856                 }
 857         }
 858 }
 859
 860 void
 861 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
 862 {
 863         insert->set_parameter_automation_state (cui->parameter(), state);
 864 }
 865
 866 void
 867 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
 868 {
 869         float val = cui->control->get_value();
 870
 871         if (!cui->ignore_change) {
 872                 if (val > 0.5) {
 873                         cui->button->set_active (true);
 874                         cui->button->set_name ("PluginEditorButton-active");
 875                 } else {
 876                         cui->button->set_active (false);
 877                         cui->button->set_name ("PluginEditorButton");
 878                 }
 879         }
 880 }
 881
 882 void
 883 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
 884 {
 885         if (!cui->update_pending) {
 886                 cui->update_pending = true;
 887                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
 888         }
 889 }
 890
 891 void
 892 GenericPluginUI::update_control_display (ControlUI* cui)
 893 {
 894         /* XXX how do we handle logarithmic stuff here ? */
 895
 896         cui->update_pending = false;
 897
 898         float val = cui->control->get_value();
 899
 900         cui->ignore_change++;
 901
 902         if (cui->combo && cui->scale_points) {
 903                 for (ARDOUR::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
 904                         if (it->second == val) {
 905                                 cui->combo->set_active_text(it->first);
 906                                 break;
 907                         }
 908                 }
 909         } else if (cui->button) {
 910
 911                 if (val > 0.5) {
 912                         cui->button->set_active (true);
 913                 } else {
 914                         cui->button->set_active (false);
 915                 }
 916         }
 917
 918         if( cui->controller ) {
 919             cui->controller->display_effective_value();
 920         }
 921
 922
 923         /*} else {
 924                 if (cui->logarithmic) {
 925                         val = log(val);
 926                 }
 927                 if (val != cui->adjustment->get_value()) {
 928                         cui->adjustment->set_value (val);
 929                 }
 930         }*/
 931         cui->ignore_change--;
 932 }
 933
 934 void
 935 GenericPluginUI::control_port_toggled (ControlUI* cui)
 936 {
 937         cui->ignore_change++;
 938         const bool active = cui->button->get_active();
 939         if (active) {
 940                 cui->button->set_name ("PluginEditorButton-active");
 941         } else {
 942                 cui->button->set_name ("PluginEditorButton");
 943         }
 944         insert->automation_control (cui->parameter())->set_value (active, Controllable::NoGroup);
 945         cui->ignore_change--;
 946 }
 947
 948 void
 949 GenericPluginUI::control_combo_changed (ControlUI* cui)
 950 {
 951         if (!cui->ignore_change && cui->scale_points) {
 952                 string value = cui->combo->get_active_text();
 953                 insert->automation_control (cui->parameter())->set_value ((*cui->scale_points)[value], Controllable::NoGroup);
 954         }
 955 }
 956
 957 bool
 958 GenericPluginUI::start_updating (GdkEventAny*)
 959 {
 960         if (output_controls.size() > 0 ) {
 961                 screen_update_connection.disconnect();
 962                 screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &GenericPluginUI::output_update));
 963         }
 964         return false;
 965 }
 966
 967 bool
 968 GenericPluginUI::stop_updating (GdkEventAny*)
 969 {
 970         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
 971                 (*i)->controller->stop_updating ();
 972         }
 973
 974         if (output_controls.size() > 0 ) {
 975                 screen_update_connection.disconnect();
 976         }
 977
 978         return false;
 979 }
 980
 981 void
 982 GenericPluginUI::output_update ()
 983 {
 984         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
 985                 float val = plugin->get_parameter ((*i)->parameter().id());
 986                 char buf[32];
 987                 snprintf (buf, sizeof(buf), "%.2f", val);
 988                 (*i)->display_label->set_text (buf);
 989
 990                 /* autoscaling for the meter */
 991                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
 992
 993                         if (val < (*i)->meterinfo->min) {
 994                                 if ((*i)->meterinfo->min_unbound)
 995                                         (*i)->meterinfo->min = val;
 996                                 else
 997                                         val = (*i)->meterinfo->min;
 998                         }
 999
1000                         if (val > (*i)->meterinfo->max) {
1001                                 if ((*i)->meterinfo->max_unbound)
1002                                         (*i)->meterinfo->max = val;
1003                                 else
1004                                         val = (*i)->meterinfo->max;
1005                         }
1006
1007                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
1008                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
1009                                 (*i)->meterinfo->meter->set (lval );
1010                         }
1011                 }
1012         }
1013 }
1014
1015 void
1016 GenericPluginUI::set_property (const ParameterDescriptor& desc,
1017                                Gtk::FileChooserButton*    widget)
1018 {
1019         plugin->set_property(desc.key, Variant(Variant::PATH, widget->get_filename()));
1020 }
1021
1022 void
1023 GenericPluginUI::property_changed (uint32_t key, const Variant& value)
1024 {
1025         PropertyControls::iterator c = _property_controls.find(key);
1026         if (c != _property_controls.end()) {
1027                 c->second->set_filename(value.get_path());
1028         } else {
1029                 std::cerr << "warning: property change for property with no control" << std::endl;
1030         }
1031 }