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);
104 if (!plugin->get_docs().empty()) {
105 pack_end (description_expander, false, false);
108 v1_box->pack_start (*smaller_hbox, false, true);
109 v2_box->pack_start (focus_button, false, true);
111 main_contents.pack_start (settings_box, false, false);
113 constraint_hbox->pack_end (*v2_box, false, false);
114 constraint_hbox->pack_end (*v1_box, false, false);
116 main_contents.pack_start (*constraint_hbox, false, false);
118 if (is_scrollable ) {
119 scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
120 scroller.set_name ("PluginEditor");
121 scroller_view.set_name("PluginEditor");
122 scroller_view.add (hpacker);
123 scroller.add (scroller_view);
125 main_contents.pack_start (scroller, true, true);
128 main_contents.pack_start (hpacker, false, false);
131 pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
133 bypass_button.set_active (!pi->active());
139 GenericPluginUI::~GenericPluginUI ()
141 if (output_controls.size() > 0) {
142 screen_update_connection.disconnect();
146 // Some functions for calculating the 'similarity' of two plugin
149 static int get_number(string label) {
150 static const char *digits = "0123456789";
153 std::size_t first_digit_pos = label.find_first_of(digits);
154 if (first_digit_pos != string::npos) {
155 // found some digits: there's a number in there somewhere
157 s << label.substr(first_digit_pos);
163 static int match_or_digit(char c1, char c2) {
164 return c1 == c2 || (isdigit(c1) && isdigit(c2));
167 static std::size_t matching_chars_at_head(const string s1, const string s2) {
168 std::size_t length, n = 0;
170 length = min(s1.length(), s2.length());
172 if (!match_or_digit(s1[n], s2[n]))
179 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
180 std::size_t s1pos, s2pos, n = 0;
184 while (s1pos-- > 0 && s2pos-- > 0) {
185 if (!match_or_digit(s1[s1pos], s2[s2pos]) )
192 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
193 static const float default_similarity_threshold = 0.3;
196 GenericPluginUI::build ()
203 int output_row, output_col;
204 int button_row, button_col;
205 int output_rows, output_cols;
206 int button_rows, button_cols;
208 hpacker.set_spacing (10);
210 output_rows = initial_output_rows;
211 output_cols = initial_output_cols;
212 button_rows = initial_button_rows;
213 button_cols = initial_button_cols;
219 button_table.set_homogeneous (false);
220 button_table.set_row_spacings (2);
221 button_table.set_col_spacings (2);
222 output_table.set_homogeneous (true);
223 output_table.set_row_spacings (2);
224 output_table.set_col_spacings (2);
225 button_table.set_border_width (5);
226 output_table.set_border_width (5);
228 hpacker.set_border_width (10);
230 bt_frame = manage (new Frame);
231 bt_frame->set_name ("BaseFrame");
232 bt_frame->set_label (_("Switches"));
233 bt_frame->add (button_table);
234 hpacker.pack_start(*bt_frame, true, true);
236 box = manage (new VBox);
237 box->set_border_width (5);
238 box->set_spacing (1);
240 frame = manage (new Frame);
241 frame->set_name ("BaseFrame");
242 frame->set_label (_("Controls"));
244 hpacker.pack_start(*frame, true, true);
246 /* find all ports. build control elements for all appropriate control ports */
247 std::vector<ControlUI *> cui_controls_list;
249 for (i = 0; i < plugin->parameter_count(); ++i) {
251 if (plugin->parameter_is_control (i)) {
253 /* Don't show latency control ports */
255 if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
261 boost::shared_ptr<ARDOUR::AutomationControl> c
262 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
263 insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
265 if ((cui = build_control_ui (i, c)) == 0) {
266 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
270 const std::string param_docs = plugin->get_parameter_docs(i);
271 if (!param_docs.empty()) {
272 ARDOUR_UI::instance()->set_tip(cui, param_docs.c_str());
275 if (cui->controller || cui->clickbox || cui->combo) {
276 // Get all of the controls into a list, so that
277 // we can lay them out a bit more nicely later.
278 cui_controls_list.push_back(cui);
279 } else if (cui->button) {
281 if (!is_scrollable && button_row == button_rows) {
283 if (++button_col == button_cols) {
285 button_table.resize (button_rows, button_cols);
289 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
293 } else if (cui->display) {
295 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
298 // TODO: The meters should be divided into multiple rows
300 if (++output_col == output_cols) {
302 output_table.resize (output_rows, output_cols);
308 // Iterate over the list of controls to find which adjacent controls
309 // are similar enough to be grouped together.
311 string label, previous_label = "";
312 int numbers_in_labels[cui_controls_list.size()];
314 float similarity_scores[cui_controls_list.size()];
315 float most_similar = 0.0, least_similar = 1.0;
318 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
319 label = (*cuip)->label.get_text();
320 numbers_in_labels[i] = get_number(label);
323 // A hand-wavy calculation of how similar this control's
324 // label is to the previous.
325 similarity_scores[i] =
327 ( matching_chars_at_head(label, previous_label) +
328 matching_chars_at_tail(label, previous_label) +
331 ) / (label.length() + previous_label.length());
332 if (numbers_in_labels[i] >= 0) {
333 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
335 least_similar = min(least_similar, similarity_scores[i]);
336 most_similar = max(most_similar, similarity_scores[i]);
338 similarity_scores[0] = 1.0;
341 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
342 previous_label = label;
346 // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
347 float similarity_threshold;
349 if (most_similar > 1.0) {
350 similarity_threshold = default_similarity_threshold;
352 similarity_threshold = most_similar - (1 - default_similarity_threshold);
355 // Now iterate over the list of controls to display them, placing an
356 // HSeparator between controls of less than a certain similarity, and
357 // starting a new column when necessary.
360 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
362 ControlUI* cui = *cuip;
364 if (!is_scrollable) {
368 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
369 if (x > min_controls_per_column) {
370 frame = manage (new Frame);
371 frame->set_name ("BaseFrame");
372 frame->set_label (_("Controls"));
373 box = manage (new VBox);
374 box->set_border_width (5);
375 box->set_spacing (1);
377 hpacker.pack_start(*frame, true, true);
380 HSeparator *split = new HSeparator();
381 split->set_size_request(-1, 5);
382 box->pack_start(*split, false, false, 0);
386 box->pack_start (*cui, false, false);
393 if (box->children().empty()) {
394 hpacker.remove (*frame);
397 if (button_table.children().empty()) {
398 hpacker.remove (*bt_frame);
401 if (!output_table.children().empty()) {
402 frame = manage (new Frame);
403 frame->set_name ("BaseFrame");
404 frame->set_label(_("Meters"));
405 frame->add (output_table);
406 hpacker.pack_end (*frame, true, true);
411 output_table.show_all ();
412 button_table.show_all ();
415 GenericPluginUI::ControlUI::ControlUI ()
416 : automate_button (X_("")) // force creation of a label
418 automate_button.set_name ("PluginAutomateButton");
419 ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
421 /* XXX translators: use a string here that will be at least as long
422 as the longest automation label (see ::automation_state_changed()
423 below). be sure to include a descender.
426 set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
435 GenericPluginUI::ControlUI::~ControlUI()
438 delete meterinfo->meter;
444 GenericPluginUI::automation_state_changed (ControlUI* cui)
446 /* update button label */
448 // don't lock to avoid deadlock because we're triggered by
449 // AutomationControl::Changed() while the automation lock is taken
450 switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
452 cui->automate_button.set_label (S_("Automation|Manual"));
455 cui->automate_button.set_label (_("Play"));
458 cui->automate_button.set_label (_("Write"));
461 cui->automate_button.set_label (_("Touch"));
464 cui->automate_button.set_label (_("???"));
471 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
473 float const v = adj.get_value ();
475 if (cui->scale_points) {
476 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
477 while (i != cui->scale_points->end() && i->second != v) {
481 if (i != cui->scale_points->end ()) {
482 snprintf (buf, 32, "%s", i->first.c_str());
487 snprintf (buf, 32, "%.0f", v);
492 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
494 plugin->print_parameter (param, buf, len);
497 GenericPluginUI::ControlUI*
498 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
500 ControlUI* control_ui = 0;
502 Plugin::ParameterDescriptor desc;
504 plugin->get_parameter_descriptor (port_index, desc);
506 control_ui = manage (new ControlUI ());
507 control_ui->combo = 0;
508 control_ui->control = mcontrol;
509 control_ui->update_pending = false;
510 control_ui->label.set_text (desc.label);
511 control_ui->label.set_alignment (0.0, 0.5);
512 control_ui->label.set_name ("PluginParameterLabel");
513 control_ui->port_index = port_index;
515 control_ui->set_spacing (5);
517 Gtk::Requisition req (control_ui->automate_button.size_request());
519 if (plugin->parameter_is_input(port_index)) {
521 /* See if there any named values for our input value */
522 control_ui->scale_points = plugin->get_scale_points (port_index);
524 /* If this parameter is an integer, work out the number of distinct values
525 it can take on (assuming that lower and upper values are allowed).
527 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
529 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
532 * a) There is a label for each possible value of this input, or
533 * b) This port is marked as being an enumeration.
536 std::vector<std::string> labels;
538 ARDOUR::Plugin::ScalePoints::const_iterator i = control_ui->scale_points->begin();
539 i != control_ui->scale_points->end();
542 labels.push_back(i->first);
545 control_ui->combo = new Gtk::ComboBoxText();
546 set_popdown_strings(*control_ui->combo, labels);
547 control_ui->combo->signal_changed().connect(
548 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
550 mcontrol->Changed.connect(control_connections, invalidator(*this),
551 boost::bind(&GenericPluginUI::ui_parameter_changed,
554 control_ui->pack_start(control_ui->label, true, true);
555 control_ui->pack_start(*control_ui->combo, false, true);
557 update_control_display(control_ui);
566 control_ui->button = manage (new ToggleButton ());
567 control_ui->button->set_name ("PluginEditorButton");
568 control_ui->button->set_size_request (20, 20);
570 control_ui->pack_start (control_ui->label, true, true);
571 control_ui->pack_start (*control_ui->button, false, true);
572 control_ui->pack_start (control_ui->automate_button, false, false);
574 control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
575 control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
577 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
578 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
580 if (plugin->get_parameter (port_index) > 0.5){
581 control_ui->button->set_active(true);
584 automation_state_changed (control_ui);
589 /* create the controller */
592 control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
595 /* XXX this code is not right yet, because it doesn't handle
596 the absence of bounds in any sensible fashion.
599 Adjustment* adj = control_ui->controller->adjustment();
600 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
602 adj->set_lower (pc->internal_to_interface (desc.lower));
603 adj->set_upper (pc->internal_to_interface (desc.upper));
605 adj->set_step_increment (desc.step);
606 adj->set_page_increment (desc.largestep);
608 if (desc.integer_step) {
609 control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
610 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
611 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
613 //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
615 control_ui->controller->set_size_request (200, req.height);
616 control_ui->controller->set_name (X_("PluginSlider"));
617 control_ui->controller->set_style (BarController::LeftToRight);
618 control_ui->controller->set_use_parent (true);
619 control_ui->controller->set_logarithmic (desc.logarithmic);
621 control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
622 control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
626 adj->set_value (pc->internal_to_interface (plugin->get_parameter (port_index)));
628 /* XXX memory leak: SliderController not destroyed by ControlUI
629 destructor, and manage() reports object hierarchy
633 control_ui->pack_start (control_ui->label, true, true);
634 if (desc.integer_step) {
635 control_ui->pack_start (*control_ui->clickbox, false, false);
637 control_ui->pack_start (*control_ui->controller, false, false);
640 control_ui->pack_start (control_ui->automate_button, false, false);
641 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
643 automation_state_changed (control_ui);
645 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
646 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
648 input_controls.push_back (control_ui);
650 } else if (plugin->parameter_is_output (port_index)) {
652 control_ui->display = manage (new EventBox);
653 control_ui->display->set_name ("ParameterValueDisplay");
655 control_ui->display_label = manage (new Label);
657 control_ui->display_label->set_name ("ParameterValueDisplay");
659 control_ui->display->add (*control_ui->display_label);
660 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
662 control_ui->display->show_all ();
665 /* TODO: only make a meter if the port is Hinted for it */
667 MeterInfo * info = new MeterInfo(port_index);
668 control_ui->meterinfo = info;
670 info->meter = new FastMeter (5, 5, FastMeter::Vertical);
672 info->min_unbound = desc.min_unbound;
673 info->max_unbound = desc.max_unbound;
675 info->min = desc.lower;
676 info->max = desc.upper;
678 control_ui->vbox = manage (new VBox);
679 control_ui->hbox = manage (new HBox);
681 control_ui->label.set_angle(90);
682 control_ui->hbox->pack_start (control_ui->label, false, false);
683 control_ui->hbox->pack_start (*info->meter, false, false);
685 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
687 control_ui->vbox->pack_start (*control_ui->display, false, false);
689 control_ui->pack_start (*control_ui->vbox);
691 control_ui->meterinfo->meter->show_all();
692 control_ui->meterinfo->packed = true;
694 output_controls.push_back (control_ui);
698 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
705 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
707 cui->control->start_touch (cui->control->session().transport_frame());
711 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
713 cui->control->stop_touch (false, cui->control->session().transport_frame());
717 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
719 using namespace Menu_Helpers;
721 if (automation_menu == 0) {
722 automation_menu = manage (new Menu);
723 automation_menu->set_name ("ArdourContextMenu");
726 MenuList& items (automation_menu->items());
729 items.push_back (MenuElem (S_("Automation|Manual"),
730 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
731 items.push_back (MenuElem (_("Play"),
732 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
733 items.push_back (MenuElem (_("Write"),
734 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
735 items.push_back (MenuElem (_("Touch"),
736 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
738 automation_menu->popup (1, gtk_get_current_event_time());
742 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
744 insert->set_parameter_automation_state (cui->parameter(), state);
748 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
750 float val = cui->control->get_value();
752 if (!cui->ignore_change) {
754 cui->button->set_active (true);
756 cui->button->set_active (false);
762 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
764 if (!cui->update_pending) {
765 cui->update_pending = true;
766 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
771 GenericPluginUI::update_control_display (ControlUI* cui)
773 /* XXX how do we handle logarithmic stuff here ? */
775 cui->update_pending = false;
777 float val = cui->control->get_value();
779 cui->ignore_change++;
781 if (cui->combo && cui->scale_points) {
782 for (ARDOUR::Plugin::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
783 if (it->second == val) {
784 cui->combo->set_active_text(it->first);
788 } else if (cui->button) {
791 cui->button->set_active (true);
793 cui->button->set_active (false);
797 if( cui->controller ) {
798 cui->controller->display_effective_value();
803 if (cui->logarithmic) {
806 if (val != cui->adjustment->get_value()) {
807 cui->adjustment->set_value (val);
810 cui->ignore_change--;
814 GenericPluginUI::control_port_toggled (ControlUI* cui)
816 cui->ignore_change++;
817 insert->automation_control (cui->parameter())->set_value (cui->button->get_active());
818 cui->ignore_change--;
822 GenericPluginUI::control_combo_changed (ControlUI* cui)
824 if (!cui->ignore_change && cui->scale_points) {
825 string value = cui->combo->get_active_text();
826 insert->automation_control (cui->parameter())->set_value ((*cui->scale_points)[value]);
831 GenericPluginUI::start_updating (GdkEventAny*)
833 if (output_controls.size() > 0 ) {
834 screen_update_connection.disconnect();
835 screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
836 (sigc::mem_fun(*this, &GenericPluginUI::output_update));
842 GenericPluginUI::stop_updating (GdkEventAny*)
844 for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
845 (*i)->controller->stop_updating ();
848 if (output_controls.size() > 0 ) {
849 screen_update_connection.disconnect();
856 GenericPluginUI::output_update ()
858 for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
859 float val = plugin->get_parameter ((*i)->port_index);
861 snprintf (buf, sizeof(buf), "%.2f", val);
862 (*i)->display_label->set_text (buf);
864 /* autoscaling for the meter */
865 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
867 if (val < (*i)->meterinfo->min) {
868 if ((*i)->meterinfo->min_unbound)
869 (*i)->meterinfo->min = val;
871 val = (*i)->meterinfo->min;
874 if (val > (*i)->meterinfo->max) {
875 if ((*i)->meterinfo->max_unbound)
876 (*i)->meterinfo->max = val;
878 val = (*i)->meterinfo->max;
881 if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
882 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
883 (*i)->meterinfo->meter->set (lval );