2 Copyright (C) 2000 Paul Davis
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.
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.
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.
21 #include "gtk2ardour-config.h"
29 #include "pbd/stl_delete.h"
30 #include "pbd/xml++.h"
31 #include "pbd/failed_constructor.h"
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>
40 #include "midi++/manager.h"
42 #include "ardour/plugin.h"
43 #include "ardour/plugin_insert.h"
44 #include "ardour/session.h"
48 #include "ardour_ui.h"
50 #include "plugin_ui.h"
52 #include "gui_thread.h"
53 #include "automation_controller.h"
58 using namespace ARDOUR;
60 using namespace Gtkmm2ext;
63 GenericPluginUI::GenericPluginUI (boost::shared_ptr<PluginInsert> pi, bool scrollable)
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),
71 is_scrollable(scrollable)
73 set_name ("PluginEditor");
74 set_border_width (10);
75 //set_homogeneous (false);
77 pack_start (main_contents, true, true);
78 settings_box.set_homogeneous (false);
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);
86 latency_button.add (latency_label);
87 latency_button.signal_clicked().connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
90 smaller_hbox->pack_start (latency_button, false, false, 10);
91 smaller_hbox->pack_start (_preset_combo, false, false);
92 smaller_hbox->pack_start (_preset_modified, false, false);
93 smaller_hbox->pack_start (add_button, false, false);
94 smaller_hbox->pack_start (save_button, false, false);
95 smaller_hbox->pack_start (delete_button, false, false);
96 smaller_hbox->pack_start (bypass_button, false, true);
98 constraint_hbox->set_spacing (5);
99 constraint_hbox->set_homogeneous (false);
101 VBox* v1_box = manage (new VBox);
102 VBox* v2_box = manage (new VBox);
103 pack_end (plugin_analysis_expander, false, false);
105 v1_box->pack_start (*smaller_hbox, false, true);
106 v2_box->pack_start (focus_button, false, true);
108 main_contents.pack_start (settings_box, false, false);
110 constraint_hbox->pack_end (*v2_box, false, false);
111 constraint_hbox->pack_end (*v1_box, false, false);
113 main_contents.pack_start (*constraint_hbox, false, false);
115 if (is_scrollable ) {
116 scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
117 scroller.set_name ("PluginEditor");
118 scroller_view.set_name("PluginEditor");
119 scroller_view.add (hpacker);
120 scroller.add (scroller_view);
122 main_contents.pack_start (scroller, true, true);
125 main_contents.pack_start (hpacker, false, false);
128 pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
130 bypass_button.set_active (!pi->active());
136 GenericPluginUI::~GenericPluginUI ()
138 if (output_controls.size() > 0) {
139 screen_update_connection.disconnect();
143 // Some functions for calculating the 'similarity' of two plugin
146 static int get_number(string label) {
147 static const char *digits = "0123456789";
150 std::size_t first_digit_pos = label.find_first_of(digits);
151 if (first_digit_pos != string::npos) {
152 // found some digits: there's a number in there somewhere
154 s << label.substr(first_digit_pos);
160 static int match_or_digit(char c1, char c2) {
161 return c1 == c2 || (isdigit(c1) && isdigit(c2));
164 static std::size_t matching_chars_at_head(const string s1, const string s2) {
165 std::size_t length, n = 0;
167 length = min(s1.length(), s2.length());
169 if (!match_or_digit(s1[n], s2[n]))
176 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
177 std::size_t s1pos, s2pos, n = 0;
181 while (s1pos-- > 0 && s2pos-- > 0) {
182 if (!match_or_digit(s1[s1pos], s2[s2pos]) )
189 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
190 static const float default_similarity_threshold = 0.3;
193 GenericPluginUI::build ()
200 int output_row, output_col;
201 int button_row, button_col;
202 int output_rows, output_cols;
203 int button_rows, button_cols;
205 hpacker.set_spacing (10);
207 output_rows = initial_output_rows;
208 output_cols = initial_output_cols;
209 button_rows = initial_button_rows;
210 button_cols = initial_button_cols;
216 button_table.set_homogeneous (false);
217 button_table.set_row_spacings (2);
218 button_table.set_col_spacings (2);
219 output_table.set_homogeneous (true);
220 output_table.set_row_spacings (2);
221 output_table.set_col_spacings (2);
222 button_table.set_border_width (5);
223 output_table.set_border_width (5);
225 hpacker.set_border_width (10);
227 bt_frame = manage (new Frame);
228 bt_frame->set_name ("BaseFrame");
229 bt_frame->set_label (_("Switches"));
230 bt_frame->add (button_table);
231 hpacker.pack_start(*bt_frame, true, true);
233 box = manage (new VBox);
234 box->set_border_width (5);
235 box->set_spacing (1);
237 frame = manage (new Frame);
238 frame->set_name ("BaseFrame");
239 frame->set_label (_("Controls"));
241 hpacker.pack_start(*frame, true, true);
243 /* find all ports. build control elements for all appropriate control ports */
244 std::vector<ControlUI *> cui_controls_list;
246 for (i = 0; i < plugin->parameter_count(); ++i) {
248 if (plugin->parameter_is_control (i)) {
250 /* Don't show latency control ports */
252 if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
258 boost::shared_ptr<ARDOUR::AutomationControl> c
259 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
260 insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
262 if ((cui = build_control_ui (i, c)) == 0) {
263 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
267 const std::string param_docs = plugin->get_parameter_docs(i);
268 if (param_docs != "") {
269 ARDOUR_UI::instance()->set_tip(cui, param_docs.c_str());
272 if (cui->controller || cui->clickbox || cui->combo) {
273 // Get all of the controls into a list, so that
274 // we can lay them out a bit more nicely later.
275 cui_controls_list.push_back(cui);
276 } else if (cui->button) {
278 if (!is_scrollable && button_row == button_rows) {
280 if (++button_col == button_cols) {
282 button_table.resize (button_rows, button_cols);
286 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
290 } else if (cui->display) {
292 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
295 // TODO: The meters should be divided into multiple rows
297 if (++output_col == output_cols) {
299 output_table.resize (output_rows, output_cols);
305 // Iterate over the list of controls to find which adjacent controls
306 // are similar enough to be grouped together.
308 string label, previous_label = "";
309 int numbers_in_labels[cui_controls_list.size()];
311 float similarity_scores[cui_controls_list.size()];
312 float most_similar = 0.0, least_similar = 1.0;
315 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
316 label = (*cuip)->label.get_text();
317 numbers_in_labels[i] = get_number(label);
320 // A hand-wavy calculation of how similar this control's
321 // label is to the previous.
322 similarity_scores[i] =
324 ( matching_chars_at_head(label, previous_label) +
325 matching_chars_at_tail(label, previous_label) +
328 ) / (label.length() + previous_label.length());
329 if (numbers_in_labels[i] >= 0) {
330 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
332 least_similar = min(least_similar, similarity_scores[i]);
333 most_similar = max(most_similar, similarity_scores[i]);
335 similarity_scores[0] = 1.0;
338 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
339 previous_label = label;
343 // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
344 float similarity_threshold;
346 if (most_similar > 1.0) {
347 similarity_threshold = default_similarity_threshold;
349 similarity_threshold = most_similar - (1 - default_similarity_threshold);
352 // Now iterate over the list of controls to display them, placing an
353 // HSeparator between controls of less than a certain similarity, and
354 // starting a new column when necessary.
357 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
359 ControlUI* cui = *cuip;
361 if (!is_scrollable) {
365 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
366 if (x > min_controls_per_column) {
367 frame = manage (new Frame);
368 frame->set_name ("BaseFrame");
369 frame->set_label (_("Controls"));
370 box = manage (new VBox);
371 box->set_border_width (5);
372 box->set_spacing (1);
374 hpacker.pack_start(*frame, true, true);
377 HSeparator *split = new HSeparator();
378 split->set_size_request(-1, 5);
379 box->pack_start(*split, false, false, 0);
383 box->pack_start (*cui, false, false);
390 if (box->children().empty()) {
391 hpacker.remove (*frame);
394 if (button_table.children().empty()) {
395 hpacker.remove (*bt_frame);
398 if (!output_table.children().empty()) {
399 frame = manage (new Frame);
400 frame->set_name ("BaseFrame");
401 frame->set_label(_("Meters"));
402 frame->add (output_table);
403 hpacker.pack_end (*frame, true, true);
408 output_table.show_all ();
409 button_table.show_all ();
412 GenericPluginUI::ControlUI::ControlUI ()
413 : automate_button (X_("")) // force creation of a label
415 automate_button.set_name ("PluginAutomateButton");
416 ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
418 /* XXX translators: use a string here that will be at least as long
419 as the longest automation label (see ::automation_state_changed()
420 below). be sure to include a descender.
423 set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
432 GenericPluginUI::ControlUI::~ControlUI()
435 delete meterinfo->meter;
441 GenericPluginUI::automation_state_changed (ControlUI* cui)
443 /* update button label */
445 // don't lock to avoid deadlock because we're triggered by
446 // AutomationControl::Changed() while the automation lock is taken
447 switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
449 cui->automate_button.set_label (S_("Automation|Manual"));
452 cui->automate_button.set_label (_("Play"));
455 cui->automate_button.set_label (_("Write"));
458 cui->automate_button.set_label (_("Touch"));
461 cui->automate_button.set_label (_("???"));
468 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
470 float const v = adj.get_value ();
472 if (cui->scale_points) {
473 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
474 while (i != cui->scale_points->end() && i->second != v) {
478 if (i != cui->scale_points->end ()) {
479 snprintf (buf, 32, "%s", i->first.c_str());
484 snprintf (buf, 32, "%.0f", v);
489 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
491 plugin->print_parameter (param, buf, len);
494 GenericPluginUI::ControlUI*
495 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
497 ControlUI* control_ui = 0;
499 Plugin::ParameterDescriptor desc;
501 plugin->get_parameter_descriptor (port_index, desc);
503 control_ui = manage (new ControlUI ());
504 control_ui->combo = 0;
505 control_ui->control = mcontrol;
506 control_ui->update_pending = false;
507 control_ui->label.set_text (desc.label);
508 control_ui->label.set_alignment (0.0, 0.5);
509 control_ui->label.set_name ("PluginParameterLabel");
510 control_ui->port_index = port_index;
512 control_ui->set_spacing (5);
514 Gtk::Requisition req (control_ui->automate_button.size_request());
516 if (plugin->parameter_is_input(port_index)) {
518 /* See if there any named values for our input value */
519 control_ui->scale_points = plugin->get_scale_points (port_index);
521 /* If this parameter is an integer, work out the number of distinct values
522 it can take on (assuming that lower and upper values are allowed).
524 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
526 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
529 * a) There is a label for each possible value of this input, or
530 * b) This port is marked as being an enumeration.
533 std::vector<std::string> labels;
535 ARDOUR::Plugin::ScalePoints::const_iterator i = control_ui->scale_points->begin();
536 i != control_ui->scale_points->end();
539 labels.push_back(i->first);
542 control_ui->combo = new Gtk::ComboBoxText();
543 set_popdown_strings(*control_ui->combo, labels);
544 control_ui->combo->signal_changed().connect(
545 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
547 mcontrol->Changed.connect(control_connections, invalidator(*this),
548 boost::bind(&GenericPluginUI::ui_parameter_changed,
551 control_ui->pack_start(control_ui->label, true, true);
552 control_ui->pack_start(*control_ui->combo, false, true);
554 update_control_display(control_ui);
563 control_ui->button = manage (new ToggleButton ());
564 control_ui->button->set_name ("PluginEditorButton");
565 control_ui->button->set_size_request (20, 20);
567 control_ui->pack_start (control_ui->label, true, true);
568 control_ui->pack_start (*control_ui->button, false, true);
569 control_ui->pack_start (control_ui->automate_button, false, false);
571 control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
572 control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
574 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
575 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
577 if (plugin->get_parameter (port_index) > 0.5){
578 control_ui->button->set_active(true);
581 automation_state_changed (control_ui);
586 /* create the controller */
589 control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
592 /* XXX this code is not right yet, because it doesn't handle
593 the absence of bounds in any sensible fashion.
596 Adjustment* adj = control_ui->controller->adjustment();
597 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
599 adj->set_lower (pc->internal_to_interface (desc.lower));
600 adj->set_upper (pc->internal_to_interface (desc.upper));
602 adj->set_step_increment (desc.step);
603 adj->set_page_increment (desc.largestep);
605 if (desc.integer_step) {
606 control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
607 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
608 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
610 //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
612 control_ui->controller->set_size_request (200, req.height);
613 control_ui->controller->set_name (X_("PluginSlider"));
614 control_ui->controller->set_style (BarController::LeftToRight);
615 control_ui->controller->set_use_parent (true);
616 control_ui->controller->set_logarithmic (desc.logarithmic);
618 control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
619 control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
623 adj->set_value (pc->internal_to_interface (plugin->get_parameter (port_index)));
625 /* XXX memory leak: SliderController not destroyed by ControlUI
626 destructor, and manage() reports object hierarchy
630 control_ui->pack_start (control_ui->label, true, true);
631 if (desc.integer_step) {
632 control_ui->pack_start (*control_ui->clickbox, false, false);
634 control_ui->pack_start (*control_ui->controller, false, false);
637 control_ui->pack_start (control_ui->automate_button, false, false);
638 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
640 automation_state_changed (control_ui);
642 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
643 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
645 input_controls.push_back (control_ui);
647 } else if (plugin->parameter_is_output (port_index)) {
649 control_ui->display = manage (new EventBox);
650 control_ui->display->set_name ("ParameterValueDisplay");
652 control_ui->display_label = manage (new Label);
654 control_ui->display_label->set_name ("ParameterValueDisplay");
656 control_ui->display->add (*control_ui->display_label);
657 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
659 control_ui->display->show_all ();
662 /* TODO: only make a meter if the port is Hinted for it */
664 MeterInfo * info = new MeterInfo(port_index);
665 control_ui->meterinfo = info;
667 info->meter = new FastMeter (5, 5, FastMeter::Vertical);
669 info->min_unbound = desc.min_unbound;
670 info->max_unbound = desc.max_unbound;
672 info->min = desc.lower;
673 info->max = desc.upper;
675 control_ui->vbox = manage (new VBox);
676 control_ui->hbox = manage (new HBox);
678 control_ui->label.set_angle(90);
679 control_ui->hbox->pack_start (control_ui->label, false, false);
680 control_ui->hbox->pack_start (*info->meter, false, false);
682 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
684 control_ui->vbox->pack_start (*control_ui->display, false, false);
686 control_ui->pack_start (*control_ui->vbox);
688 control_ui->meterinfo->meter->show_all();
689 control_ui->meterinfo->packed = true;
691 output_controls.push_back (control_ui);
695 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
702 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
704 cui->control->start_touch (cui->control->session().transport_frame());
708 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
710 cui->control->stop_touch (false, cui->control->session().transport_frame());
714 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
716 using namespace Menu_Helpers;
718 if (automation_menu == 0) {
719 automation_menu = manage (new Menu);
720 automation_menu->set_name ("ArdourContextMenu");
723 MenuList& items (automation_menu->items());
726 items.push_back (MenuElem (S_("Automation|Manual"),
727 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
728 items.push_back (MenuElem (_("Play"),
729 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
730 items.push_back (MenuElem (_("Write"),
731 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
732 items.push_back (MenuElem (_("Touch"),
733 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
735 automation_menu->popup (1, gtk_get_current_event_time());
739 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
741 insert->set_parameter_automation_state (cui->parameter(), state);
745 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
747 float val = cui->control->get_value();
749 if (!cui->ignore_change) {
751 cui->button->set_active (true);
753 cui->button->set_active (false);
759 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
761 if (!cui->update_pending) {
762 cui->update_pending = true;
763 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
768 GenericPluginUI::update_control_display (ControlUI* cui)
770 /* XXX how do we handle logarithmic stuff here ? */
772 cui->update_pending = false;
774 float val = cui->control->get_value();
776 cui->ignore_change++;
778 if (cui->combo && cui->scale_points) {
779 for (ARDOUR::Plugin::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
780 if (it->second == val) {
781 cui->combo->set_active_text(it->first);
785 } else if (cui->button) {
788 cui->button->set_active (true);
790 cui->button->set_active (false);
794 if( cui->controller ) {
795 cui->controller->display_effective_value();
800 if (cui->logarithmic) {
803 if (val != cui->adjustment->get_value()) {
804 cui->adjustment->set_value (val);
807 cui->ignore_change--;
811 GenericPluginUI::control_port_toggled (ControlUI* cui)
813 cui->ignore_change++;
814 insert->automation_control (cui->parameter())->set_value (cui->button->get_active());
815 cui->ignore_change--;
819 GenericPluginUI::control_combo_changed (ControlUI* cui)
821 if (!cui->ignore_change && cui->scale_points) {
822 string value = cui->combo->get_active_text();
823 insert->automation_control (cui->parameter())->set_value ((*cui->scale_points)[value]);
828 GenericPluginUI::start_updating (GdkEventAny*)
830 if (output_controls.size() > 0 ) {
831 screen_update_connection.disconnect();
832 screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
833 (sigc::mem_fun(*this, &GenericPluginUI::output_update));
839 GenericPluginUI::stop_updating (GdkEventAny*)
841 for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
842 (*i)->controller->stop_updating ();
845 if (output_controls.size() > 0 ) {
846 screen_update_connection.disconnect();
853 GenericPluginUI::output_update ()
855 for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
856 float val = plugin->get_parameter ((*i)->port_index);
858 snprintf (buf, sizeof(buf), "%.2f", val);
859 (*i)->display_label->set_text (buf);
861 /* autoscaling for the meter */
862 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
864 if (val < (*i)->meterinfo->min) {
865 if ((*i)->meterinfo->min_unbound)
866 (*i)->meterinfo->min = val;
868 val = (*i)->meterinfo->min;
871 if (val > (*i)->meterinfo->max) {
872 if ((*i)->meterinfo->max_unbound)
873 (*i)->meterinfo->max = val;
875 val = (*i)->meterinfo->max;
878 if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
879 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
880 (*i)->meterinfo->meter->set (lval );