ardour_ui2.cc

Go to the documentation of this file.

/*
    Copyright (C) 1999 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.

*/

#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif

#include <fcntl.h>
#include <signal.h>
#include <unistd.h>
#include <cerrno>
#include <iostream>
#include <cmath>

#include <sigc++/bind.h>
#include "pbd/error.h"
#include "pbd/basename.h"
#include "pbd/fastlog.h"
#include <gtkmm2ext/cairocell.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/click_box.h>
#include <gtkmm2ext/tearoff.h>

#include "ardour/profile.h"
#include "ardour/session.h"
#include "ardour/types.h"

#include "ardour_ui.h"
#include "keyboard.h"
#include "public_editor.h"
#include "audio_clock.h"
#include "actions.h"
#include "main_clock.h"
#include "utils.h"
#include "theme_manager.h"
#include "midi_tracer.h"
#include "shuttle_control.h"
#include "global_port_matrix.h"
#include "location_ui.h"
#include "rc_option_editor.h"
#include "time_info_box.h"

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtkmm2ext;
using namespace Gtk;
using namespace Glib;
using namespace ARDOUR_UI_UTILS;

int
ARDOUR_UI::setup_windows ()
{
        if (create_editor ()) {
                error << _("UI: cannot setup editor") << endmsg;
                return -1;
        }

        if (create_mixer ()) {
                error << _("UI: cannot setup mixer") << endmsg;
                return -1;
        }

        if (create_meterbridge ()) {
                error << _("UI: cannot setup meterbridge") << endmsg;
                return -1;
        }

        /* all other dialogs are created conditionally */

        we_have_dependents ();

#ifdef TOP_MENUBAR
        HBox* status_bar_packer = manage (new HBox);
        EventBox* status_bar_event_box = manage (new EventBox);

        status_bar_event_box->add (status_bar_label);
        status_bar_event_box->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        status_bar_label.set_size_request (300, -1);
        status_bar_packer->pack_start (*status_bar_event_box, true, true, 6);

        status_bar_label.show ();
        status_bar_event_box->show ();
        status_bar_packer->show ();

        status_bar_event_box->signal_button_press_event().connect (mem_fun (*this, &ARDOUR_UI::status_bar_button_press));

        editor->get_status_bar_packer().pack_start (*status_bar_packer, true, true);
        editor->get_status_bar_packer().pack_start (menu_bar_base, false, false, 2);
#else
        top_packer.pack_start (menu_bar_base, false, false);
#endif

        editor->add_toplevel_menu (top_packer);

        editor->add_transport_frame (transport_frame);

        setup_transport();

        build_menu_bar ();

        setup_tooltips ();

        return 0;
}

void
ARDOUR_UI::setup_tooltips ()
{
        set_tip (roll_button, _("Play from playhead"));
        set_tip (stop_button, _("Stop playback"));
        set_tip (rec_button, _("Toggle record"));
        set_tip (play_selection_button, _("Play range/selection"));
        set_tip (goto_start_button, _("Go to start of session"));
        set_tip (goto_end_button, _("Go to end of session"));
        set_tip (auto_loop_button, _("Play loop range"));
        set_tip (midi_panic_button, _("MIDI Panic\nSend note off and reset controller messages on all MIDI channels"));
        set_tip (auto_return_button, _("Return to last playback start when stopped"));
        set_tip (follow_edits_button, _("Playhead follows Range Selections and Edits"));
        set_tip (auto_input_button, _("Be sensible about input monitoring"));
        set_tip (click_button, _("Enable/Disable audio click"));
        set_tip (solo_alert_button, _("When active, something is soloed.\nClick to de-solo everything"));
        set_tip (auditioning_alert_button, _("When active, auditioning is taking place\nClick to stop the audition"));
        set_tip (feedback_alert_button, _("When active, there is a feedback loop."));
        set_tip (primary_clock, _("<b>Primary Clock</b> right-click to set display mode. Click to edit, click+drag a digit or mouse-over+scroll wheel to modify.\nText edits: right-to-left overwrite <tt>Esc</tt>: cancel; <tt>Enter</tt>: confirm; postfix the edit with '+' or '-' to enter delta times.\n"));
        set_tip (secondary_clock, _("<b>Secondary Clock</b> right-click to set display mode. Click to edit, click+drag a digit or mouse-over+scroll wheel to modify.\nText edits: right-to-left overwrite <tt>Esc</tt>: cancel; <tt>Enter</tt>: confirm; postfix the edit with '+' or '-' to enter delta times.\n"));
        set_tip (editor_meter_peak_display, _("Reset All Peak Indicators"));
        set_tip (error_alert_button, _("Show Error Log and acknowledge warnings"));

        synchronize_sync_source_and_video_pullup ();

        editor->setup_tooltips ();
}

bool
ARDOUR_UI::status_bar_button_press (GdkEventButton* ev)
{
        bool handled = false;

        switch (ev->button) {
        case 1:
                status_bar_label.set_text ("");
                handled = true;
                break;
        default:
                break;
        }

        return handled;
}

void
ARDOUR_UI::display_message (const char *prefix, gint prefix_len, RefPtr<TextBuffer::Tag> ptag, RefPtr<TextBuffer::Tag> mtag, const char *msg)
{
        string text;

        UI::display_message (prefix, prefix_len, ptag, mtag, msg);

        ArdourLogLevel ll = LogLevelNone;

        if (strcmp (prefix, _("[ERROR]: ")) == 0) {
                text = "<span color=\"red\" weight=\"bold\">";
                ll = LogLevelError;
        } else if (strcmp (prefix, _("[WARNING]: ")) == 0) {
                text = "<span color=\"yellow\" weight=\"bold\">";
                ll = LogLevelWarning;
        } else if (strcmp (prefix, _("[INFO]: ")) == 0) {
                text = "<span color=\"green\" weight=\"bold\">";
                ll = LogLevelInfo;
        } else {
                text = "<span color=\"white\" weight=\"bold\">???";
        }

        _log_not_acknowledged = std::max(_log_not_acknowledged, ll);

#ifdef TOP_MENUBAR
        text += prefix;
        text += "</span>";
        text += msg;

        status_bar_label.set_markup (text);
#endif
}

XMLNode*
ARDOUR_UI::tearoff_settings (const char* name) const
{
        XMLNode* ui_node = Config->extra_xml(X_("UI"));

        if (ui_node) {
                XMLNode* tearoff_node = ui_node->child (X_("Tearoffs"));
                if (tearoff_node) {
                        XMLNode* mnode = tearoff_node->child (name);
                        return mnode;
                }
        }

        return 0;
}

#define PX_SCALE(px) std::max((float)px, rintf((float)px * ARDOUR_UI::ui_scale))

void
ARDOUR_UI::setup_transport ()
{
        RefPtr<Action> act;

        transport_tearoff_hbox.set_border_width (PX_SCALE(3));
        transport_tearoff_hbox.set_spacing (PX_SCALE(3));

        transport_tearoff = manage (new TearOff (transport_tearoff_hbox));
        transport_tearoff->set_name ("TransportBase");
        transport_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &transport_tearoff->tearoff_window()), false);

        if (Profile->get_sae() || Profile->get_mixbus()) {
                transport_tearoff->set_can_be_torn_off (false);
        }

        transport_hbox.pack_start (*transport_tearoff, true, false);

        transport_base.set_name ("TransportBase");
        transport_base.add (transport_hbox);

        transport_frame.set_shadow_type (SHADOW_OUT);
        transport_frame.set_name ("BaseFrame");
        transport_frame.add (transport_base);

        transport_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::detach_tearoff), static_cast<Box*>(&top_packer),
                                                 static_cast<Widget*>(&transport_frame)));
        transport_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::reattach_tearoff), static_cast<Box*> (&top_packer),
                                                 static_cast<Widget*> (&transport_frame), 1));
        transport_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::detach_tearoff), static_cast<Box*>(&top_packer),
                                                 static_cast<Widget*>(&transport_frame)));
        transport_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::reattach_tearoff), static_cast<Box*> (&top_packer),
                                                  static_cast<Widget*> (&transport_frame), 1));

        auto_return_button.set_text(_("Auto Return"));

        follow_edits_button.set_text(_("Follow Edits"));

//      auto_input_button.set_text (_("Auto Input"));

        click_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        click_button.set_icon (ArdourButton::TransportMetronom);

        act = ActionManager::get_action ("Transport", "ToggleClick");
        click_button.set_related_action (act);
        click_button.signal_button_press_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::click_button_clicked), false);

        auto_return_button.set_name ("transport option button");
        follow_edits_button.set_name ("transport option button");
        auto_input_button.set_name ("transport option button");

        /* these have to provide a clear indication of active state */

        click_button.set_name ("transport button");
        sync_button.set_name ("transport active option button");

        stop_button.set_active (true);

        goto_start_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        goto_start_button.set_icon (ArdourButton::TransportStart);
        goto_end_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        goto_end_button.set_icon (ArdourButton::TransportEnd);
        roll_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        roll_button.set_icon (ArdourButton::TransportPlay);
        stop_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        stop_button.set_icon (ArdourButton::TransportStop);
        play_selection_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        play_selection_button.set_icon (ArdourButton::TransportRange);
        auto_loop_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        auto_loop_button.set_icon (ArdourButton::TransportLoop);

        rec_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        rec_button.set_icon (ArdourButton::RecButton);

        midi_panic_button.set_elements ((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body|ArdourButton::VectorIcon));
        midi_panic_button.set_icon (ArdourButton::TransportPanic);

        act = ActionManager::get_action (X_("Transport"), X_("Stop"));
        stop_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("Roll"));
        roll_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("Record"));
        rec_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("GotoStart"));
        goto_start_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("GotoEnd"));
        goto_end_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("Loop"));
        auto_loop_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("PlaySelection"));
        play_selection_button.set_related_action (act);
        act = ActionManager::get_action (X_("MIDI"), X_("panic"));
        midi_panic_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("ToggleExternalSync"));
        sync_button.set_related_action (act);

        /* clocks, etc. */

        ARDOUR_UI::Clock.connect (sigc::mem_fun (primary_clock, &AudioClock::set));
        ARDOUR_UI::Clock.connect (sigc::mem_fun (secondary_clock, &AudioClock::set));

        primary_clock->ValueChanged.connect (sigc::mem_fun(*this, &ARDOUR_UI::primary_clock_value_changed));
        secondary_clock->ValueChanged.connect (sigc::mem_fun(*this, &ARDOUR_UI::secondary_clock_value_changed));
        big_clock->ValueChanged.connect (sigc::mem_fun(*this, &ARDOUR_UI::big_clock_value_changed));

        act = ActionManager::get_action ("Transport", "ToggleAutoReturn");
        auto_return_button.set_related_action (act);
        act = ActionManager::get_action (X_("Transport"), X_("ToggleFollowEdits"));
        follow_edits_button.set_related_action (act);
        act = ActionManager::get_action ("Transport", "ToggleAutoInput");
        auto_input_button.set_related_action (act);

        /* alerts */

        /* CANNOT sigc::bind these to clicked or toggled, must use pressed or released */

        solo_alert_button.set_name ("rude solo");
        solo_alert_button.signal_button_press_event().connect (sigc::mem_fun(*this,&ARDOUR_UI::solo_alert_press), false);
        auditioning_alert_button.set_name ("rude audition");
        auditioning_alert_button.signal_button_press_event().connect (sigc::mem_fun(*this,&ARDOUR_UI::audition_alert_press), false);
        feedback_alert_button.set_name ("feedback alert");
        feedback_alert_button.signal_button_press_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::feedback_alert_press), false);
        error_alert_button.set_name ("error alert");
        error_alert_button.signal_button_release_event().connect (sigc::mem_fun(*this,&ARDOUR_UI::error_alert_press), false);
        act = ActionManager::get_action (X_("Editor"), X_("toggle-log-window"));
        error_alert_button.set_related_action(act);
        error_alert_button.set_fallthrough_to_parent(true);

        alert_box.set_homogeneous (true);
        alert_box.set_spacing (PX_SCALE(2));
        alert_box.pack_start (solo_alert_button, true, true);
        alert_box.pack_start (auditioning_alert_button, true, true);
        alert_box.pack_start (feedback_alert_button, true, true);

        /* all transport buttons should be the same size vertically and
         * horizontally 
         */

        Glib::RefPtr<SizeGroup> transport_button_size_group = SizeGroup::create (SIZE_GROUP_BOTH);
        transport_button_size_group->add_widget (goto_start_button);
        transport_button_size_group->add_widget (goto_end_button);
        transport_button_size_group->add_widget (auto_loop_button);
        transport_button_size_group->add_widget (rec_button);
        transport_button_size_group->add_widget (play_selection_button);
        transport_button_size_group->add_widget (roll_button);
        transport_button_size_group->add_widget (stop_button);

        /* the icon for this has an odd aspect ratio, so fatten up the button */
        midi_panic_button.set_size_request (PX_SCALE(25), -1);
        goto_start_button.set_size_request (PX_SCALE(28), PX_SCALE(44));
        click_button.set_size_request (PX_SCALE(32), PX_SCALE(44));


        HBox* tbox1 = manage (new HBox);
        HBox* tbox2 = manage (new HBox);
        HBox* tbox = manage (new HBox);

        VBox* vbox1 = manage (new VBox);
        VBox* vbox2 = manage (new VBox);

        Alignment* a1 = manage (new Alignment);
        Alignment* a2 = manage (new Alignment);

        tbox1->set_spacing (PX_SCALE(2));
        tbox2->set_spacing (PX_SCALE(2));
        tbox->set_spacing (PX_SCALE(2));

        if (!Profile->get_trx()) {
                tbox1->pack_start (midi_panic_button, true, true, 5);
                tbox1->pack_start (click_button, true, true, 5);
        }

        tbox1->pack_start (goto_start_button, true, true);
        tbox1->pack_start (goto_end_button, true, true);
        tbox1->pack_start (auto_loop_button, true, true);

        if (!Profile->get_trx()) {
                tbox2->pack_start (play_selection_button, true, true);
        }
        tbox2->pack_start (roll_button, true, true);
        tbox2->pack_start (stop_button, true, true);
        tbox2->pack_start (rec_button, true, true, 5);

        vbox1->pack_start (*tbox1, true, true);
        vbox2->pack_start (*tbox2, true, true);

        a1->add (*vbox1);
        a1->set (0.5, 0.5, 0.0, 1.0);
        a2->add (*vbox2);
        a2->set (0.5, 0.5, 0.0, 1.0);

        tbox->pack_start (*a1, false, false);
        tbox->pack_start (*a2, false, false);

        HBox* clock_box = manage (new HBox);

        clock_box->pack_start (*primary_clock, false, false);
        if (!ARDOUR::Profile->get_small_screen() && !ARDOUR::Profile->get_trx()) {
                clock_box->pack_start (*secondary_clock, false, false);
        }
        clock_box->set_spacing (PX_SCALE(3));

        shuttle_box = manage (new ShuttleControl);
        shuttle_box->show ();
        
        VBox* transport_vbox = manage (new VBox);
        transport_vbox->set_name ("TransportBase");
        transport_vbox->set_border_width (0);
        transport_vbox->set_spacing (PX_SCALE(3));
        transport_vbox->pack_start (*tbox, true, true, 0);

        if (!Profile->get_trx()) {
                transport_vbox->pack_start (*shuttle_box, false, false, 0);
        }

        time_info_box = manage (new TimeInfoBox);

        if (ARDOUR::Profile->get_trx()) {
                transport_tearoff_hbox.pack_start (*time_info_box, false, false);
        }

        transport_tearoff_hbox.pack_start (*transport_vbox, false, false);

        /* transport related toggle controls */

        VBox* auto_box = manage (new VBox);
        auto_box->set_homogeneous (true);
        auto_box->set_spacing (PX_SCALE(2));
        auto_box->pack_start (sync_button, true, true);
        if (!ARDOUR::Profile->get_trx()) {
                auto_box->pack_start (follow_edits_button, true, true);
                auto_box->pack_start (auto_return_button, true, true);
        }

        if (!ARDOUR::Profile->get_trx()) {
                transport_tearoff_hbox.pack_start (*auto_box, false, false);
        }
        transport_tearoff_hbox.pack_start (*clock_box, true, true);

        if (ARDOUR::Profile->get_trx()) {
                transport_tearoff_hbox.pack_start (*auto_box, false, false);
        }

        if (!ARDOUR::Profile->get_trx()) {
                transport_tearoff_hbox.pack_start (*time_info_box, false, false);
        }

        if (ARDOUR::Profile->get_small_screen()) {
                transport_tearoff_hbox.pack_start (_editor_transport_box, false, false);
        }

        if (!ARDOUR::Profile->get_trx()) {
                transport_tearoff_hbox.pack_start (alert_box, false, false);
                transport_tearoff_hbox.pack_start (meter_box, false, false);
                transport_tearoff_hbox.pack_start (editor_meter_peak_display, false, false);
        }

        if (Profile->get_sae()) {
                Image* img = manage (new Image ((::get_icon (X_("sae")))));
                transport_tearoff_hbox.pack_end (*img, false, false);
        }

        /* desensitize */

        set_transport_sensitivity (false);

        XMLNode* tnode = tearoff_settings ("transport");
        if (tnode) {
                transport_tearoff->set_state (*tnode);
        }
}
#undef PX_SCALE

void
ARDOUR_UI::detach_tearoff (Box* b, Widget* w)
{
//      editor->ensure_float (transport_tearoff->tearoff_window());
        b->remove (*w);
}

void
ARDOUR_UI::reattach_tearoff (Box* b, Widget* w, int32_t n)
{
        b->pack_start (*w);
        b->reorder_child (*w, n);
}

void
ARDOUR_UI::reattach_all_tearoffs ()
{
        if (transport_tearoff) transport_tearoff->put_it_back();
        if (editor) editor->reattach_all_tearoffs ();
}

void
ARDOUR_UI::soloing_changed (bool onoff)
{
        if (solo_alert_button.get_active() != onoff) {
                solo_alert_button.set_active (onoff);
        }
}

void
ARDOUR_UI::_auditioning_changed (bool onoff)
{
        auditioning_alert_button.set_active (onoff);
        set_transport_sensitivity (!onoff);
}

void
ARDOUR_UI::auditioning_changed (bool onoff)
{
        UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::_auditioning_changed, this, onoff));
}

bool
ARDOUR_UI::audition_alert_press (GdkEventButton*)
{
        if (_session) {
                _session->cancel_audition();
        }
        return true;
}

bool
ARDOUR_UI::solo_alert_press (GdkEventButton*)
{
        if (_session) {
                if (_session->soloing()) {
                        _session->set_solo (_session->get_routes(), false);
                } else if (_session->listening()) {
                        _session->set_listen (_session->get_routes(), false);
                }
        }
        return true;
}

bool
ARDOUR_UI::feedback_alert_press (GdkEventButton *)
{
        return true;
}

bool
ARDOUR_UI::error_alert_press (GdkEventButton* ev)
{
        bool do_toggle = true;
        if (ev->button == 1) {
                if (_log_not_acknowledged == LogLevelError) {
                        // just acknowledge the error, don't hide the log if it's already visible
                        RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-log-window"));
                        Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
                        if (tact && tact->get_active()) {
                                do_toggle = false;
                        }
                }
                _log_not_acknowledged = LogLevelNone;
                error_blink (false); // immediate acknowledge
        }
        // maybe fall through to to button toggle
        return !do_toggle;
}

void
ARDOUR_UI::solo_blink (bool onoff)
{
        if (_session == 0) {
                return;
        }

        if (_session->soloing() || _session->listening()) {
                if (onoff) {
                        solo_alert_button.set_active (true);
                } else {
                        solo_alert_button.set_active (false);
                }
        } else {
                solo_alert_button.set_active (false);
        }
}

void
ARDOUR_UI::sync_blink (bool onoff)
{
        if (_session == 0 || !_session->config.get_external_sync()) {
                /* internal sync */
                sync_button.set_active (false);
                return;
        }

        if (!_session->transport_locked()) {
                /* not locked, so blink on and off according to the onoff argument */

                if (onoff) {
                        sync_button.set_active (true);
                } else {
                        sync_button.set_active (false);
                }
        } else {
                /* locked */
                sync_button.set_active (true);
        }
}

void
ARDOUR_UI::audition_blink (bool onoff)
{
        if (_session == 0) {
                return;
        }

        if (_session->is_auditioning()) {
                if (onoff) {
                        auditioning_alert_button.set_active (true);
                } else {
                        auditioning_alert_button.set_active (false);
                }
        } else {
                auditioning_alert_button.set_active (false);
        }
}

void
ARDOUR_UI::feedback_blink (bool onoff)
{
        if (_feedback_exists) {
                if (onoff) {
                        feedback_alert_button.set_active (true);
                } else {
                        feedback_alert_button.set_active (false);
                }
        } else {
                feedback_alert_button.set_active (false);
        }
}

void
ARDOUR_UI::error_blink (bool onoff)
{
        switch (_log_not_acknowledged) {
                case LogLevelError:
                        // blink
                        if (onoff) {
                                error_alert_button.set_custom_led_color(0xff0000ff); // bright red
                        } else {
                                error_alert_button.set_custom_led_color(0x880000ff); // dark red
                        }
                        break;
                case LogLevelWarning:
                        error_alert_button.set_custom_led_color(0xccaa00ff); // yellow
                        break;
                case LogLevelInfo:
                        error_alert_button.set_custom_led_color(0x88cc00ff); // lime green
                        break;
                default:
                        error_alert_button.set_custom_led_color(0x333333ff); // gray
                        break;
        }
}



void
ARDOUR_UI::set_transport_sensitivity (bool yn)
{
        ActionManager::set_sensitive (ActionManager::transport_sensitive_actions, yn);
        shuttle_box->set_sensitive (yn);
}

void
ARDOUR_UI::editor_realized ()
{
        boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
        Config->map_parameters (pc);

        reset_dpi ();
}

void
ARDOUR_UI::update_tearoff_visibility ()
{
        if (editor) {
                editor->update_tearoff_visibility ();
        }
}

void
ARDOUR_UI::maximise_editing_space ()
{
        if (editor) {
                editor->maximise_editing_space ();
        }
}

void
ARDOUR_UI::restore_editing_space ()
{
        if (editor) {
                editor->restore_editing_space ();
        }
}

void
ARDOUR_UI::show_ui_prefs ()
{
        RefPtr<Action> act = ActionManager::get_action (X_("Window"), X_("toggle-rc-options-editor"));
        assert (act);

        act->activate();

        rc_option_editor->set_current_page (_("GUI"));
}


bool
ARDOUR_UI::click_button_clicked (GdkEventButton* ev)
{
        if (ev->button != 3) {
                /* this handler is just for button-3 clicks */
                return false;
        }

        RefPtr<Action> act = ActionManager::get_action (X_("Window"), X_("toggle-rc-options-editor"));
        assert (act);

        act->activate();

        rc_option_editor->set_current_page (_("Misc"));
        return true;
}

void
ARDOUR_UI::toggle_follow_edits ()
{
        RefPtr<Action> act = ActionManager::get_action (X_("Transport"), X_("ToggleFollowEdits"));
        assert (act);

        RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic (act);
        assert (tact);

        ui_config->set_follow_edits (tact->get_active ());
}