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_AUTOMATIC, 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());
131 bypass_button.set_active_state (Gtkmm2ext::Active);
133 bypass_button.unset_active_state ();
140 GenericPluginUI::~GenericPluginUI ()
142 if (output_controls.size() > 0) {
143 screen_update_connection.disconnect();
147 // Some functions for calculating the 'similarity' of two plugin
150 static int get_number(string label) {
151 static const char *digits = "0123456789";
154 std::size_t first_digit_pos = label.find_first_of(digits);
155 if (first_digit_pos != string::npos) {
156 // found some digits: there's a number in there somewhere
158 s << label.substr(first_digit_pos);
164 static int match_or_digit(char c1, char c2) {
165 return c1 == c2 || (isdigit(c1) && isdigit(c2));
168 static std::size_t matching_chars_at_head(const string s1, const string s2) {
169 std::size_t length, n = 0;
171 length = min(s1.length(), s2.length());
173 if (!match_or_digit(s1[n], s2[n]))
180 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
181 std::size_t s1pos, s2pos, n = 0;
185 while (s1pos-- > 0 && s2pos-- > 0) {
186 if (!match_or_digit(s1[s1pos], s2[s2pos]) )
193 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
194 static const float default_similarity_threshold = 0.3;
197 GenericPluginUI::build ()
204 int output_row, output_col;
205 int button_row, button_col;
206 int output_rows, output_cols;
207 int button_rows, button_cols;
209 hpacker.set_spacing (10);
211 output_rows = initial_output_rows;
212 output_cols = initial_output_cols;
213 button_rows = initial_button_rows;
214 button_cols = initial_button_cols;
220 button_table.set_homogeneous (false);
221 button_table.set_row_spacings (2);
222 button_table.set_col_spacings (2);
223 output_table.set_homogeneous (true);
224 output_table.set_row_spacings (2);
225 output_table.set_col_spacings (2);
226 button_table.set_border_width (5);
227 output_table.set_border_width (5);
229 hpacker.set_border_width (10);
231 bt_frame = manage (new Frame);
232 bt_frame->set_name ("BaseFrame");
233 bt_frame->set_label (_("Switches"));
234 bt_frame->add (button_table);
235 hpacker.pack_start(*bt_frame, true, true);
237 box = manage (new VBox);
238 box->set_border_width (5);
239 box->set_spacing (1);
241 frame = manage (new Frame);
242 frame->set_name ("BaseFrame");
243 frame->set_label (_("Controls"));
245 hpacker.pack_start(*frame, true, true);
247 /* find all ports. build control elements for all appropriate control ports */
248 std::vector<ControlUI *> cui_controls_list;
250 for (i = 0; i < plugin->parameter_count(); ++i) {
252 if (plugin->parameter_is_control (i)) {
254 /* Don't show latency control ports */
256 if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
262 boost::shared_ptr<ARDOUR::AutomationControl> c
263 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
264 insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
266 if ((cui = build_control_ui (i, c)) == 0) {
267 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
271 if (cui->controller || cui->clickbox || cui->combo) {
272 // Get all of the controls into a list, so that
273 // we can lay them out a bit more nicely later.
274 cui_controls_list.push_back(cui);
275 } else if (cui->button) {
277 if (!is_scrollable && button_row == button_rows) {
279 if (++button_col == button_cols) {
281 button_table.resize (button_rows, button_cols);
285 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
289 } else if (cui->display) {
291 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
294 // TODO: The meters should be divided into multiple rows
296 if (++output_col == output_cols) {
298 output_table.resize (output_rows, output_cols);
304 // Iterate over the list of controls to find which adjacent controls
305 // are similar enough to be grouped together.
307 string label, previous_label = "";
308 int numbers_in_labels[cui_controls_list.size()];
310 float similarity_scores[cui_controls_list.size()];
311 float most_similar = 0.0, least_similar = 1.0;
314 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
315 label = (*cuip)->label.get_text();
316 numbers_in_labels[i] = get_number(label);
319 // A hand-wavy calculation of how similar this control's
320 // label is to the previous.
321 similarity_scores[i] =
323 ( matching_chars_at_head(label, previous_label) +
324 matching_chars_at_tail(label, previous_label) +
327 ) / (label.length() + previous_label.length());
328 if (numbers_in_labels[i] >= 0) {
329 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
331 least_similar = min(least_similar, similarity_scores[i]);
332 most_similar = max(most_similar, similarity_scores[i]);
334 similarity_scores[0] = 1.0;
337 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
338 previous_label = label;
342 // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
343 float similarity_threshold;
345 if (most_similar > 1.0) {
346 similarity_threshold = default_similarity_threshold;
348 similarity_threshold = most_similar - (1 - default_similarity_threshold);
351 // Now iterate over the list of controls to display them, placing an
352 // HSeparator between controls of less than a certain similarity, and
353 // starting a new column when necessary.
356 for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
358 ControlUI* cui = *cuip;
360 if (!is_scrollable) {
364 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
365 if (x > min_controls_per_column) {
366 frame = manage (new Frame);
367 frame->set_name ("BaseFrame");
368 frame->set_label (_("Controls"));
369 box = manage (new VBox);
370 box->set_border_width (5);
371 box->set_spacing (1);
373 hpacker.pack_start(*frame, true, true);
376 HSeparator *split = new HSeparator();
377 split->set_size_request(-1, 5);
378 box->pack_start(*split, false, false, 0);
382 box->pack_start (*cui, false, false);
389 if (box->children().empty()) {
390 hpacker.remove (*frame);
393 if (button_table.children().empty()) {
394 hpacker.remove (*bt_frame);
397 if (!output_table.children().empty()) {
398 frame = manage (new Frame);
399 frame->set_name ("BaseFrame");
400 frame->set_label(_("Meters"));
401 frame->add (output_table);
402 hpacker.pack_end (*frame, true, true);
407 output_table.show_all ();
408 button_table.show_all ();
411 GenericPluginUI::ControlUI::ControlUI ()
412 : automate_button (X_("")) // force creation of a label
414 automate_button.set_name ("PluginAutomateButton");
415 ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
417 /* XXX translators: use a string here that will be at least as long
418 as the longest automation label (see ::automation_state_changed()
419 below). be sure to include a descender.
422 set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
431 GenericPluginUI::ControlUI::~ControlUI()
434 delete meterinfo->meter;
440 GenericPluginUI::automation_state_changed (ControlUI* cui)
442 /* update button label */
444 // don't lock to avoid deadlock because we're triggered by
445 // AutomationControl::Changed() while the automation lock is taken
446 switch (insert->get_parameter_automation_state (cui->parameter())
447 & (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 (_("???"));
467 static void integer_printer (char buf[32], Adjustment &adj, void */*arg*/)
469 snprintf (buf, 32, "%.0f", adj.get_value());
473 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
475 plugin->print_parameter (param, buf, len);
478 GenericPluginUI::ControlUI*
479 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
481 ControlUI* control_ui = 0;
483 Plugin::ParameterDescriptor desc;
485 plugin->get_parameter_descriptor (port_index, desc);
487 control_ui = manage (new ControlUI ());
488 control_ui->combo = 0;
489 control_ui->control = mcontrol;
490 control_ui->update_pending = false;
491 control_ui->label.set_text (desc.label);
492 control_ui->label.set_alignment (0.0, 0.5);
493 control_ui->label.set_name ("PluginParameterLabel");
494 control_ui->port_index = port_index;
496 control_ui->set_spacing (5);
498 Gtk::Requisition req (control_ui->automate_button.size_request());
500 if (plugin->parameter_is_input(port_index)) {
502 /* Build a combo box */
504 control_ui->combo_map = plugin->get_scale_points (port_index);
506 if (control_ui->combo_map) {
507 std::vector<std::string> labels;
509 ARDOUR::Plugin::ScalePoints::const_iterator i = control_ui->combo_map->begin();
510 i != control_ui->combo_map->end();
513 labels.push_back(i->first);
516 control_ui->combo = new Gtk::ComboBoxText();
517 set_popdown_strings(*control_ui->combo, labels);
518 control_ui->combo->signal_changed().connect(
519 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
521 mcontrol->Changed.connect(control_connections, invalidator(*this),
522 boost::bind(&GenericPluginUI::ui_parameter_changed,
525 control_ui->pack_start(control_ui->label, true, true);
526 control_ui->pack_start(*control_ui->combo, false, true);
528 update_control_display(control_ui);
537 control_ui->button = manage (new ToggleButton ());
538 control_ui->button->set_name ("PluginEditorButton");
539 control_ui->button->set_size_request (20, 20);
541 control_ui->pack_start (control_ui->label, true, true);
542 control_ui->pack_start (*control_ui->button, false, true);
543 control_ui->pack_start (control_ui->automate_button, false, false);
545 control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
546 control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
548 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
549 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
551 if (plugin->get_parameter (port_index) > 0.5){
552 control_ui->button->set_active(true);
555 automation_state_changed (control_ui);
560 /* create the controller */
563 control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
566 /* XXX this code is not right yet, because it doesn't handle
567 the absence of bounds in any sensible fashion.
570 Adjustment* adj = control_ui->controller->adjustment();
571 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
573 adj->set_lower (pc->user_to_ui (desc.lower));
574 adj->set_upper (pc->user_to_ui (desc.upper));
576 adj->set_step_increment (desc.step);
577 adj->set_page_increment (desc.largestep);
579 if (desc.integer_step) {
580 control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
581 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
582 control_ui->clickbox->set_print_func (integer_printer, 0);
584 //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
586 control_ui->controller->set_size_request (200, req.height);
587 control_ui->controller->set_name (X_("PluginSlider"));
588 control_ui->controller->set_style (BarController::LeftToRight);
589 control_ui->controller->set_use_parent (true);
590 control_ui->controller->set_logarithmic (desc.logarithmic);
592 control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
593 control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
597 adj->set_value (pc->plugin_to_ui (plugin->get_parameter (port_index)));
599 /* XXX memory leak: SliderController not destroyed by ControlUI
600 destructor, and manage() reports object hierarchy
604 control_ui->pack_start (control_ui->label, true, true);
605 if (desc.integer_step) {
606 control_ui->pack_start (*control_ui->clickbox, false, false);
608 control_ui->pack_start (*control_ui->controller, false, false);
611 control_ui->pack_start (control_ui->automate_button, false, false);
612 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
614 automation_state_changed (control_ui);
616 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
617 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
619 input_controls.push_back (control_ui);
621 } else if (plugin->parameter_is_output (port_index)) {
623 control_ui->display = manage (new EventBox);
624 control_ui->display->set_name ("ParameterValueDisplay");
626 control_ui->display_label = manage (new Label);
628 control_ui->display_label->set_name ("ParameterValueDisplay");
630 control_ui->display->add (*control_ui->display_label);
631 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
633 control_ui->display->show_all ();
636 /* TODO: only make a meter if the port is Hinted for it */
638 MeterInfo * info = new MeterInfo(port_index);
639 control_ui->meterinfo = info;
641 info->meter = new FastMeter (5, 5, FastMeter::Vertical);
643 info->min_unbound = desc.min_unbound;
644 info->max_unbound = desc.max_unbound;
646 info->min = desc.lower;
647 info->max = desc.upper;
649 control_ui->vbox = manage (new VBox);
650 control_ui->hbox = manage (new HBox);
652 control_ui->label.set_angle(90);
653 control_ui->hbox->pack_start (control_ui->label, false, false);
654 control_ui->hbox->pack_start (*info->meter, false, false);
656 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
658 control_ui->vbox->pack_start (*control_ui->display, false, false);
660 control_ui->pack_start (*control_ui->vbox);
662 control_ui->meterinfo->meter->show_all();
663 control_ui->meterinfo->packed = true;
665 output_controls.push_back (control_ui);
669 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
676 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
678 cui->control->start_touch (cui->control->session().transport_frame());
682 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
684 cui->control->stop_touch (false, cui->control->session().transport_frame());
688 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
690 using namespace Menu_Helpers;
692 if (automation_menu == 0) {
693 automation_menu = manage (new Menu);
694 automation_menu->set_name ("ArdourContextMenu");
697 MenuList& items (automation_menu->items());
700 items.push_back (MenuElem (S_("Automation|Manual"),
701 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Off, cui)));
702 items.push_back (MenuElem (_("Play"),
703 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
704 items.push_back (MenuElem (_("Write"),
705 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
706 items.push_back (MenuElem (_("Touch"),
707 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
709 automation_menu->popup (1, gtk_get_current_event_time());
713 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
715 insert->set_parameter_automation_state (cui->parameter(), state);
719 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
721 float val = cui->control->get_value();
723 if (!cui->ignore_change) {
725 cui->button->set_active (true);
727 cui->button->set_active (false);
733 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
735 if (!cui->update_pending) {
736 cui->update_pending = true;
737 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
742 GenericPluginUI::update_control_display (ControlUI* cui)
744 /* XXX how do we handle logarithmic stuff here ? */
746 cui->update_pending = false;
748 float val = cui->control->get_value();
750 cui->ignore_change++;
752 if (cui->combo && cui->combo_map) {
753 for (ARDOUR::Plugin::ScalePoints::iterator it = cui->combo_map->begin(); it != cui->combo_map->end(); ++it) {
754 if (it->second == val) {
755 cui->combo->set_active_text(it->first);
759 } else if (cui->button) {
762 cui->button->set_active (true);
764 cui->button->set_active (false);
768 if( cui->controller ) {
769 cui->controller->display_effective_value();
774 if (cui->logarithmic) {
777 if (val != cui->adjustment->get_value()) {
778 cui->adjustment->set_value (val);
781 cui->ignore_change--;
785 GenericPluginUI::control_port_toggled (ControlUI* cui)
787 cui->ignore_change++;
788 insert->automation_control (cui->parameter())->set_value (cui->button->get_active());
789 cui->ignore_change--;
793 GenericPluginUI::control_combo_changed (ControlUI* cui)
795 if (!cui->ignore_change && cui->combo_map) {
796 string value = cui->combo->get_active_text();
797 insert->automation_control (cui->parameter())->set_value ((*cui->combo_map)[value]);
802 GenericPluginUI::start_updating (GdkEventAny*)
804 if (output_controls.size() > 0 ) {
805 screen_update_connection.disconnect();
806 screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
807 (sigc::mem_fun(*this, &GenericPluginUI::output_update));
813 GenericPluginUI::stop_updating (GdkEventAny*)
815 for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
816 (*i)->controller->stop_updating ();
819 if (output_controls.size() > 0 ) {
820 screen_update_connection.disconnect();
827 GenericPluginUI::output_update ()
829 for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
830 float val = plugin->get_parameter ((*i)->port_index);
832 snprintf (buf, sizeof(buf), "%.2f", val);
833 (*i)->display_label->set_text (buf);
835 /* autoscaling for the meter */
836 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
838 if (val < (*i)->meterinfo->min) {
839 if ((*i)->meterinfo->min_unbound)
840 (*i)->meterinfo->min = val;
842 val = (*i)->meterinfo->min;
845 if (val > (*i)->meterinfo->max) {
846 if ((*i)->meterinfo->max_unbound)
847 (*i)->meterinfo->max = val;
849 val = (*i)->meterinfo->max;
852 if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
853 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
854 (*i)->meterinfo->meter->set (lval );