1 files changed, 759 insertions, 0 deletions

diff --git a/gtk2_ardour/ladspa_pluginui.cc b/gtk2_ardour/ladspa_pluginui.cc
new file mode 100644
index 0000000000..22b860900a
--- /dev/null
+++ b/gtk2_ardour/ladspa_pluginui.cc
@@ -0,0 +1,759 @@
+/*
+    Copyright (C) 2000 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <climits>
+#include <cerrno>
+#include <cmath>
+#include <string>
+
+#include <pbd/stl_delete.h>
+#include <pbd/xml++.h>
+#include <pbd/failed_constructor.h>
+
+#include <gtkmm2ext/click_box.h>
+#include <gtkmm2ext/fastmeter.h>
+#include <gtkmm2ext/barcontroller.h>
+#include <gtkmm2ext/utils.h>
+#include <gtkmm2ext/doi.h>
+#include <gtkmm2ext/slider_controller.h>
+
+#include <midi++/manager.h>
+
+#include <ardour/audioengine.h>
+#include <ardour/plugin.h>
+#include <ardour/insert.h>
+#include <ardour/ladspa_plugin.h>
+
+#include <lrdf.h>
+
+#include "ardour_ui.h"
+#include "prompter.h"
+#include "plugin_ui.h"
+#include "utils.h"
+#include "gui_thread.h"
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+using namespace Gtkmm2ext;
+using namespace Gtk;
+using namespace sigc;
+
+LadspaPluginUI::LadspaPluginUI (AudioEngine &engine, boost::shared_ptr<PluginInsert> pi, bool scrollable)
+	: PlugUIBase (pi),
+	  engine(engine),
+	  button_table (initial_button_rows, initial_button_cols),
+	  output_table (initial_output_rows, initial_output_cols),
+	  hAdjustment(0.0, 0.0, 0.0),
+	  vAdjustment(0.0, 0.0, 0.0),
+	  scroller_view(hAdjustment, vAdjustment),
+	  automation_menu (0),
+	  is_scrollable(scrollable)
+{
+	set_name ("PluginEditor");
+	set_border_width (10);
+	set_homogeneous (false);
+
+	settings_box.set_homogeneous (false);
+
+	HBox* constraint_hbox = manage (new HBox);
+	HBox* smaller_hbox = manage (new HBox);
+	Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
+	combo_label->set_use_markup (true);
+
+	smaller_hbox->pack_start (*combo_label, false, false, 10);
+	smaller_hbox->pack_start (combo, false, false);
+	smaller_hbox->pack_start (save_button, false, false);
+
+	constraint_hbox->set_spacing (5);
+	constraint_hbox->pack_start (*smaller_hbox, true, false);
+	constraint_hbox->pack_end (bypass_button, false, false);
+
+	settings_box.pack_end (*constraint_hbox, false, false);
+
+	pack_start (settings_box, false, false);
+
+	if ( is_scrollable ) {
+		scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+		scroller.set_name ("PluginEditor");
+		scroller_view.set_name("PluginEditor");
+		scroller_view.add (hpacker);
+		scroller.add (scroller_view);
+		
+		pack_start (scroller, true, true);
+
+	}
+	else {
+		pack_start (hpacker, false, false);
+	}
+
+	insert->active_changed.connect (mem_fun(*this, &LadspaPluginUI::redirect_active_changed));
+	bypass_button.set_active (!insert->active());
+	
+	build (engine);
+}
+
+LadspaPluginUI::~LadspaPluginUI ()
+{
+	if (output_controls.size() > 0) {
+		screen_update_connection.disconnect();
+	}
+}
+
+void
+LadspaPluginUI::build (AudioEngine &engine)
+
+{
+	guint32 i = 0;
+	guint32 x = 0;
+	Frame* frame;
+	Frame* bt_frame;
+	VBox* box;
+	int output_row, output_col;
+	int button_row, button_col;
+	int output_rows, output_cols;
+	int button_rows, button_cols;
+	guint32 n_ins=0, n_outs = 0;
+
+	prefheight = 30;
+	hpacker.set_spacing (10);
+
+	output_rows = initial_output_rows;
+	output_cols = initial_output_cols;
+	button_rows = initial_button_rows;
+	button_cols = initial_button_cols;
+	output_row = 0;
+	button_row = 0;
+	output_col = 0;
+	button_col = 0;
+
+	button_table.set_homogeneous (false);
+	button_table.set_row_spacings (2);
+	button_table.set_col_spacings (2);
+	output_table.set_homogeneous (true);
+	output_table.set_row_spacings (2);
+	output_table.set_col_spacings (2);
+	button_table.set_border_width (5);
+	output_table.set_border_width (5);
+
+	hpacker.set_border_width (10);
+
+	bt_frame = manage (new Frame);
+	bt_frame->set_name ("BaseFrame");
+	bt_frame->add (button_table);
+	hpacker.pack_start(*bt_frame, true, true);
+
+	box = manage (new VBox);
+	box->set_border_width (5);
+	box->set_spacing (1);
+
+	frame = manage (new Frame);
+	frame->set_name ("BaseFrame");
+	frame->set_label (_("Controls"));
+	frame->add (*box);
+	hpacker.pack_start(*frame, true, true);
+
+	/* find all ports. build control elements for all appropriate control ports */
+
+	for (i = 0; i < plugin->parameter_count(); ++i) {
+
+		if (plugin->parameter_is_control (i)) {
+			
+			/* Don't show latency control ports */
+
+			if (plugin->describe_parameter (i) == X_("latency")) {
+				continue;
+			}
+
+			ControlUI* cui;
+	
+			/* if we are scrollable, just use one long column */
+
+			if (!is_scrollable) {
+				if (x++ > 7){
+					frame = manage (new Frame);
+					frame->set_name ("BaseFrame");
+					box = manage (new VBox);
+					
+					box->set_border_width (5);
+					box->set_spacing (1);
+
+					frame->add (*box);
+					hpacker.pack_start(*frame,true,true);
+
+					x = 0;
+				}
+			}
+
+			if ((cui = build_control_ui (engine, i, plugin->get_nth_control (i))) == 0) {
+				error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
+				continue;
+			}
+				
+			if (cui->control || cui->clickbox || cui->combo) {
+
+				box->pack_start (*cui, false, false);
+
+			} else if (cui->button) {
+
+				if (button_row == button_rows) {
+					button_row = 0;
+					if (++button_col == button_cols) {
+						button_cols += 2;
+						button_table.resize (button_rows, button_cols);
+					}
+				}
+
+				button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1, 
+						     FILL|EXPAND, FILL);
+				button_row++;
+
+			} else if (cui->display) {
+
+				output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1, 
+						     FILL|EXPAND, FILL);
+				
+ 				// TODO: The meters should be divided into multiple rows 
+				
+				if (++output_col == output_cols) {
+					output_cols ++;
+					output_table.resize (output_rows, output_cols);
+				}
+				
+				/* old code, which divides meters into
+				 * columns first, rows later. New code divides into one row
+				 
+				if (output_row == output_rows) {
+					output_row = 0;
+					if (++output_col == output_cols) {
+						output_cols += 2;
+						output_table.resize (output_rows, output_cols);
+					}
+				}
+				
+				output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1, 
+						     FILL|EXPAND, FILL);
+ 
+				output_row++;
+				*/
+			}
+				
+			/* HACK: ideally the preferred height would be queried from
+			   the complete hpacker, but I can't seem to get that
+			   information in time, so this is an estimation 
+			*/
+
+			prefheight += 30;
+
+		} 
+	}
+
+	n_ins = plugin->get_info()->n_inputs;
+	n_outs = plugin->get_info()->n_outputs;
+
+	if (box->children().empty()) {
+		hpacker.remove (*frame);
+	}
+
+	if (button_table.children().empty()) {
+		hpacker.remove (*bt_frame);
+	}
+
+	if (!output_table.children().empty()) {
+		frame = manage (new Frame);
+		frame->set_name ("BaseFrame");
+		frame->add (output_table);
+		hpacker.pack_end (*frame, true, true);
+	}
+
+	output_update ();
+
+	output_table.show_all ();
+	button_table.show_all ();
+}
+
+LadspaPluginUI::ControlUI::ControlUI ()
+	: automate_button (X_("")) // force creation of a label 
+{
+	automate_button.set_name ("PluginAutomateButton");
+	ARDOUR_UI::instance()->tooltips().set_tip (automate_button,
+						   _("Automation control"));
+
+	/* don't fix the height, it messes up the bar controllers */
+
+	set_size_request_to_display_given_text (automate_button, X_("lngnuf"), 2, 2);
+
+	ignore_change = 0;
+	display = 0;
+	button = 0;
+	control = 0;
+	clickbox = 0;
+	adjustment = 0;
+	meterinfo = 0;
+}
+
+LadspaPluginUI::ControlUI::~ControlUI() 
+{
+	if (adjustment) {
+		delete adjustment;
+	}
+
+	if (meterinfo) {
+		delete meterinfo->meter;
+		delete meterinfo;
+	}
+}
+
+void
+LadspaPluginUI::automation_state_changed (ControlUI* cui)
+{
+	/* update button label */
+
+	switch (insert->get_port_automation_state (cui->port_index) & (Off|Play|Touch|Write)) {
+	case Off:
+		cui->automate_button.set_label (_("Off"));
+		break;
+	case Play:
+		cui->automate_button.set_label (_("Play"));
+		break;
+	case Write:
+		cui->automate_button.set_label (_("Write"));
+		break;
+	case Touch:
+		cui->automate_button.set_label (_("Touch"));
+		break;
+	default:
+		cui->automate_button.set_label (_("???"));
+		break;
+	}
+}
+
+
+static void integer_printer (char buf[32], Adjustment &adj, void *arg)
+{
+	snprintf (buf, 32, "%.0f", adj.get_value());
+}
+
+void
+LadspaPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
+{
+	plugin->print_parameter (param, buf, len);
+}
+
+LadspaPluginUI::ControlUI*
+LadspaPluginUI::build_control_ui (AudioEngine &engine, guint32 port_index, PBD::Controllable* mcontrol)
+
+{
+	ControlUI* control_ui;
+	Plugin::ParameterDescriptor desc;
+
+	plugin->get_parameter_descriptor (port_index, desc);
+
+	control_ui = manage (new ControlUI ());
+	control_ui->adjustment = 0;
+	control_ui->combo = 0;
+	control_ui->combo_map = 0;
+	control_ui->port_index = port_index;
+	control_ui->update_pending = false;
+	control_ui->label.set_text (desc.label);
+	control_ui->label.set_alignment (0.0, 0.5);
+	control_ui->label.set_name ("PluginParameterLabel");
+
+	control_ui->set_spacing (5);
+
+	if (plugin->parameter_is_input (port_index)) {
+
+		boost::shared_ptr<LadspaPlugin> lp;
+
+		if ((lp = boost::dynamic_pointer_cast<LadspaPlugin>(plugin)) != 0) {
+			
+			lrdf_defaults* defaults = lrdf_get_scale_values(lp->unique_id(), port_index);
+			
+			if (defaults && defaults->count > 0)	{
+				
+				control_ui->combo = new Gtk::ComboBoxText;
+				//control_ui->combo->set_value_in_list(true, false);
+				set_popdown_strings (*control_ui->combo, setup_scale_values(port_index, control_ui));
+				control_ui->combo->signal_changed().connect (bind (mem_fun(*this, &LadspaPluginUI::control_combo_changed), control_ui));
+				plugin->ParameterChanged.connect (bind (mem_fun (*this, &LadspaPluginUI::parameter_changed), control_ui));
+				control_ui->pack_start(control_ui->label, true, true);
+				control_ui->pack_start(*control_ui->combo, false, true);
+				
+				update_control_display(control_ui);
+				
+				lrdf_free_setting_values(defaults);
+				return control_ui;
+			}
+		}
+			
+		if (desc.toggled) {
+
+			/* Build a button */
+		
+			control_ui->button = manage (new ToggleButton ());
+			control_ui->button->set_name ("PluginEditorButton");
+			control_ui->button->set_size_request (20, 20);
+
+			control_ui->pack_start (control_ui->label, true, true);
+			control_ui->pack_start (*control_ui->button, false, true);
+			control_ui->pack_start (control_ui->automate_button, false, false);
+
+			control_ui->button->signal_clicked().connect (bind (mem_fun(*this, &LadspaPluginUI::control_port_toggled), control_ui));
+		
+			if(plugin->get_parameter (port_index) == 1){
+				control_ui->button->set_active(true);
+			}
+
+			return control_ui;
+		}
+	
+		control_ui->adjustment = new Adjustment (0, 0, 0, 0, 0);
+
+		/* XXX this code is not right yet, because it doesn't handle
+		   the absence of bounds in any sensible fashion.
+		*/
+
+		control_ui->adjustment->set_lower (desc.lower);
+		control_ui->adjustment->set_upper (desc.upper);
+
+		control_ui->logarithmic = desc.logarithmic;
+		if (control_ui->logarithmic) {
+			if (control_ui->adjustment->get_lower() == 0.0) {
+				control_ui->adjustment->set_lower (control_ui->adjustment->get_upper()/10000);
+			}
+			control_ui->adjustment->set_upper (log(control_ui->adjustment->get_upper()));
+			control_ui->adjustment->set_lower (log(control_ui->adjustment->get_lower()));
+		}
+	
+		float delta = desc.upper - desc.lower;
+
+		control_ui->adjustment->set_page_size (delta/100.0);
+		control_ui->adjustment->set_step_increment (desc.step);
+		control_ui->adjustment->set_page_increment (desc.largestep);
+
+		if (desc.integer_step) {
+			control_ui->clickbox = new ClickBox (control_ui->adjustment, "PluginUIClickBox");
+			Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
+			control_ui->clickbox->set_print_func (integer_printer, 0);
+		} else {
+			sigc::slot<void,char*,uint32_t> pslot = sigc::bind (mem_fun(*this, &LadspaPluginUI::print_parameter), (uint32_t) port_index);
+
+			control_ui->control = new BarController (*control_ui->adjustment, *mcontrol, pslot);
+			// should really match the height of the text in the automation button+label
+			control_ui->control->set_size_request (200, 22);
+			control_ui->control->set_name (X_("PluginSlider"));
+			control_ui->control->set_style (BarController::LeftToRight);
+			control_ui->control->set_use_parent (true);
+
+			control_ui->control->StartGesture.connect (bind (mem_fun(*this, &LadspaPluginUI::start_touch), control_ui));
+			control_ui->control->StopGesture.connect (bind (mem_fun(*this, &LadspaPluginUI::stop_touch), control_ui));
+			
+		}
+
+		if (control_ui->logarithmic) {
+			control_ui->adjustment->set_value(log(plugin->get_parameter(port_index)));
+		} else{
+			control_ui->adjustment->set_value(plugin->get_parameter(port_index));
+		}
+
+		/* XXX memory leak: SliderController not destroyed by ControlUI
+		   destructor, and manage() reports object hierarchy
+		   ambiguity.
+		*/
+
+		control_ui->pack_start (control_ui->label, true, true);
+		if (desc.integer_step) {
+			control_ui->pack_start (*control_ui->clickbox, false, false);
+		} else {
+			control_ui->pack_start (*control_ui->control, false, false);
+		}
+
+		control_ui->pack_start (control_ui->automate_button, false, false);
+		control_ui->adjustment->signal_value_changed().connect (bind (mem_fun(*this, &LadspaPluginUI::control_adjustment_changed), control_ui));
+		control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &LadspaPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
+
+		automation_state_changed (control_ui);
+
+		plugin->ParameterChanged.connect (bind (mem_fun(*this, &LadspaPluginUI::parameter_changed), control_ui));
+		insert->automation_list (port_index).automation_state_changed.connect 
+			(bind (mem_fun(*this, &LadspaPluginUI::automation_state_changed), control_ui));
+
+	} else if (plugin->parameter_is_output (port_index)) {
+
+		control_ui->display = manage (new EventBox);
+		control_ui->display->set_name ("ParameterValueDisplay");
+
+		control_ui->display_label = manage (new Label);
+
+		control_ui->display_label->set_name ("ParameterValueDisplay");
+
+		control_ui->display->add (*control_ui->display_label);
+		Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-99,99", 2, 2);
+
+		control_ui->display->show_all ();
+
+		/* set up a meter */
+		/* TODO: only make a meter if the port is Hinted for it */
+
+		MeterInfo * info = new MeterInfo(port_index);
+ 		control_ui->meterinfo = info;
+		
+		info->meter = new FastMeter (5, 100, FastMeter::Vertical);
+
+		info->min_unbound = desc.min_unbound;
+		info->max_unbound = desc.max_unbound;
+
+		info->min = desc.lower;
+		info->max = desc.upper;
+
+		control_ui->vbox = manage (new VBox);
+		control_ui->hbox = manage (new HBox);
+		
+		control_ui->label.set_angle(90);
+		control_ui->hbox->pack_start (control_ui->label, false, false);
+ 		control_ui->hbox->pack_start (*info->meter, false, false);
+
+ 		control_ui->vbox->pack_start (*control_ui->hbox, false, false);
+		
+ 		control_ui->vbox->pack_start (*control_ui->display, false, false);
+
+		control_ui->pack_start (*control_ui->vbox);
+
+		control_ui->meterinfo->meter->show_all();
+		control_ui->meterinfo->packed = true;
+		
+		output_controls.push_back (control_ui);
+	}
+	
+	plugin->ParameterChanged.connect (bind (mem_fun(*this, &LadspaPluginUI::parameter_changed), control_ui));
+	return control_ui;
+}
+
+void
+LadspaPluginUI::start_touch (LadspaPluginUI::ControlUI* cui)
+{
+	insert->automation_list (cui->port_index).start_touch ();
+}
+
+void
+LadspaPluginUI::stop_touch (LadspaPluginUI::ControlUI* cui)
+{
+	insert->automation_list (cui->port_index).stop_touch ();
+}
+
+void
+LadspaPluginUI::astate_clicked (ControlUI* cui, uint32_t port)
+{
+	using namespace Menu_Helpers;
+
+	if (automation_menu == 0) {
+		automation_menu = manage (new Menu);
+		automation_menu->set_name ("ArdourContextMenu");
+	} 
+
+	MenuList& items (automation_menu->items());
+
+	items.clear ();
+	items.push_back (MenuElem (_("Off"), 
+				   bind (mem_fun(*this, &LadspaPluginUI::set_automation_state), (AutoState) Off, cui)));
+	items.push_back (MenuElem (_("Play"),
+				   bind (mem_fun(*this, &LadspaPluginUI::set_automation_state), (AutoState) Play, cui)));
+	items.push_back (MenuElem (_("Write"),
+				   bind (mem_fun(*this, &LadspaPluginUI::set_automation_state), (AutoState) Write, cui)));
+	items.push_back (MenuElem (_("Touch"),
+				   bind (mem_fun(*this, &LadspaPluginUI::set_automation_state), (AutoState) Touch, cui)));
+
+	automation_menu->popup (1, 0);
+}
+
+void
+LadspaPluginUI::set_automation_state (AutoState state, ControlUI* cui)
+{
+	insert->set_port_automation_state (cui->port_index, state);
+}
+
+void
+LadspaPluginUI::control_adjustment_changed (ControlUI* cui)
+{
+	if (cui->ignore_change) {
+		return;
+	}
+
+	double value = cui->adjustment->get_value();
+
+	if (cui->logarithmic) {
+	  	value = exp(value);
+	}
+
+	insert->set_parameter (cui->port_index, (float) value);
+}
+
+void
+LadspaPluginUI::parameter_changed (uint32_t abs_port_id, float val, ControlUI* cui)
+{
+	if (cui->port_index == abs_port_id) {
+		if (!cui->update_pending) {
+			cui->update_pending = true;
+			Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &LadspaPluginUI::update_control_display), cui));
+		}
+	}
+}
+
+void
+LadspaPluginUI::update_control_display (ControlUI* cui)	
+{
+	/* XXX how do we handle logarithmic stuff here ? */
+	
+	cui->update_pending = false;
+
+	float val = plugin->get_parameter (cui->port_index);
+
+	cui->ignore_change++;
+	if (cui->combo) {
+	        std::map<string,float>::iterator it;
+		for (it = cui->combo_map->begin(); it != cui->combo_map->end(); ++it) {
+			if (it->second == val) {
+				cui->combo->set_active_text(it->first);
+				break;
+			}
+		}
+	} else if (cui->adjustment == 0) {
+
+		if (val > 0.5) {
+			cui->button->set_active (true);
+		} else {
+			cui->button->set_active (false);
+		}
+
+	} else {
+		if (cui->logarithmic) {
+			val = log(val);
+		}
+		if (val != cui->adjustment->get_value()) {
+			cui->adjustment->set_value (val);
+		}
+	}
+	cui->ignore_change--;
+}
+
+void
+LadspaPluginUI::control_port_toggled (ControlUI* cui)
+{
+	if (!cui->ignore_change) {
+		insert->set_parameter (cui->port_index, cui->button->get_active());
+	}
+}
+
+void
+LadspaPluginUI::control_combo_changed (ControlUI* cui)
+{
+	if (!cui->ignore_change) {
+		string value = cui->combo->get_active_text();
+		std::map<string,float> mapping = *cui->combo_map;
+		insert->set_parameter (cui->port_index, mapping[value]);
+	}
+
+}
+
+void
+LadspaPluginUI::redirect_active_changed (Redirect* r, void* src)
+{
+	ENSURE_GUI_THREAD(bind (mem_fun(*this, &LadspaPluginUI::redirect_active_changed), r, src));
+	
+	bypass_button.set_active (!r->active());
+}
+
+bool
+LadspaPluginUI::start_updating (GdkEventAny* ignored)
+{
+	if (output_controls.size() > 0 ) {
+		screen_update_connection.disconnect();
+		screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect 
+			(mem_fun(*this, &LadspaPluginUI::output_update));
+	}
+	return false;
+}
+
+bool
+LadspaPluginUI::stop_updating (GdkEventAny* ignored)
+{
+	if (output_controls.size() > 0 ) {
+		screen_update_connection.disconnect();
+	}
+	return false;
+}
+
+void
+LadspaPluginUI::output_update ()
+{
+	for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
+		float val = plugin->get_parameter ((*i)->port_index);
+		char buf[32];
+		snprintf (buf, sizeof(buf), "%.2f", val);
+		(*i)->display_label->set_text (buf);
+
+		/* autoscaling for the meter */
+		if ((*i)->meterinfo && (*i)->meterinfo->packed) {
+			
+			if (val < (*i)->meterinfo->min) {
+				if ((*i)->meterinfo->min_unbound)
+					(*i)->meterinfo->min = val;
+				else
+					val = (*i)->meterinfo->min;
+			}
+
+			if (val > (*i)->meterinfo->max) {
+				if ((*i)->meterinfo->max_unbound)
+					(*i)->meterinfo->max = val;
+				else
+					val = (*i)->meterinfo->max;
+			}
+			
+			if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
+				float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
+				(*i)->meterinfo->meter->set (lval );
+			}
+		}
+	}
+}
+
+vector<string> 
+LadspaPluginUI::setup_scale_values(guint32 port_index, ControlUI* cui)
+{
+	vector<string> enums;
+	boost::shared_ptr<LadspaPlugin> lp = boost::dynamic_pointer_cast<LadspaPlugin> (plugin);
+
+	cui->combo_map = new std::map<string, float>;
+	lrdf_defaults* defaults = lrdf_get_scale_values(lp->unique_id(), port_index);
+	if (defaults)	{
+		for (uint32_t i = 0; i < defaults->count; ++i) {
+			enums.push_back(defaults->items[i].label);
+			pair<string, float> newpair;
+			newpair.first = defaults->items[i].label;
+			newpair.second = defaults->items[i].value;
+			cui->combo_map->insert(newpair);
+		}
+
+		lrdf_free_setting_values(defaults);
+	}
+
+	return enums;
+}