audio_time_axis.cc

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/*
    Copyright (C) 2000-2006 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 <cstdlib>
#include <cmath>
#include <cassert>

#include <algorithm>
#include <string>
#include <vector>

#include <sigc++/bind.h>

#include "pbd/error.h"
#include "pbd/stl_delete.h"
#include "pbd/memento_command.h"

#include "gtkmm2ext/gtk_ui.h"
#include "gtkmm2ext/selector.h"
#include "gtkmm2ext/bindable_button.h"
#include "gtkmm2ext/utils.h"

#include "ardour/event_type_map.h"
#include "ardour/pannable.h"
#include "ardour/panner.h"
#include "ardour/panner_shell.h"

#include "ardour_button.h"
#include "ardour_ui.h"
#include "audio_time_axis.h"
#include "automation_line.h"
#include "enums.h"
#include "gui_thread.h"
#include "automation_time_axis.h"
#include "keyboard.h"
#include "playlist_selector.h"
#include "prompter.h"
#include "public_editor.h"
#include "audio_region_view.h"
#include "audio_streamview.h"
#include "utils.h"

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Gtk;
using namespace Editing;

AudioTimeAxisView::AudioTimeAxisView (PublicEditor& ed, Session* sess, ArdourCanvas::Canvas& canvas)
        : AxisView(sess)
        , RouteTimeAxisView(ed, sess, canvas)
{
}

void
AudioTimeAxisView::set_route (boost::shared_ptr<Route> rt)
{
        _route = rt;

        /* RouteTimeAxisView::set_route() sets up some things in the View,
           so it must be created before RouteTimeAxis::set_route() is
           called.
        */
        _view = new AudioStreamView (*this);

        RouteTimeAxisView::set_route (rt);

        _view->apply_color (gdk_color_to_rgba (color()), StreamView::RegionColor);

        // Make sure things are sane...
        assert(!is_track() || is_audio_track());

        subplugin_menu.set_name ("ArdourContextMenu");

        ignore_toggle = false;

        if (is_audio_track()) {
                controls_ebox.set_name ("AudioTrackControlsBaseUnselected");
                time_axis_frame.set_name ("AudioTrackControlsBaseUnselected");
        } else { // bus
                controls_ebox.set_name ("AudioBusControlsBaseUnselected");
                time_axis_frame.set_name ("AudioBusControlsBaseUnselected");
        }

        /* if set_state above didn't create a gain automation child, we need to make one */
        if (automation_child (GainAutomation) == 0) {
                create_automation_child (GainAutomation, false);
        }

        if (automation_child (TrimAutomation) == 0) {
                create_automation_child (TrimAutomation, false);
        }

        /* if set_state above didn't create a mute automation child, we need to make one */
        if (automation_child (MuteAutomation) == 0) {
                create_automation_child (MuteAutomation, false);
        }

        if (_route->panner_shell()) {
                _route->panner_shell()->Changed.connect (*this, invalidator (*this),
                                                         boost::bind (&AudioTimeAxisView::ensure_pan_views, this, false), gui_context());
        }

        /* map current state of the route */

        processors_changed (RouteProcessorChange ());
        reset_processor_automation_curves ();
        ensure_pan_views (false);
        update_control_names ();

        if (is_audio_track()) {

                /* ask for notifications of any new RegionViews */
                _view->RegionViewAdded.connect (sigc::mem_fun(*this, &AudioTimeAxisView::region_view_added));

                if (!_editor.have_idled()) {
                        /* first idle will do what we need */
                } else {
                        first_idle ();
                }

        } else {
                post_construct ();
        }
}

AudioTimeAxisView::~AudioTimeAxisView ()
{
}

void
AudioTimeAxisView::first_idle ()
{
        _view->attach ();
        post_construct ();
}

AudioStreamView*
AudioTimeAxisView::audio_view()
{
        return dynamic_cast<AudioStreamView*>(_view);
}

guint32
AudioTimeAxisView::show_at (double y, int& nth, Gtk::VBox *parent)
{
        set_gui_property ("visible", true);
        return TimeAxisView::show_at (y, nth, parent);
}

void
AudioTimeAxisView::hide ()
{
        set_gui_property ("visible", false);
        TimeAxisView::hide ();
}

void
AudioTimeAxisView::create_automation_child (const Evoral::Parameter& param, bool show)
{
        if (param.type() == NullAutomation) {
                return;
        }

        AutomationTracks::iterator existing = _automation_tracks.find (param);

        if (existing != _automation_tracks.end()) {
                
                /* automation track created because we had existing data for
                 * the processor, but visibility may need to be controlled
                 * since it will have been set visible by default.
                 */

                existing->second->set_marked_for_display (show);
                
                if (!no_redraw) {
                        request_redraw ();
                }

                return;
        }

        if (param.type() == GainAutomation) {

                create_gain_automation_child (param, show);

        } else if (param.type() == TrimAutomation) {

                create_trim_automation_child (param, show);

        } else if (param.type() == PanWidthAutomation ||
                   param.type() == PanElevationAutomation ||
                   param.type() == PanAzimuthAutomation) {

                ensure_pan_views (show);

        } else if (param.type() == PluginAutomation) {

                /* handled elsewhere */

        } else if (param.type() == MuteAutomation) {

                create_mute_automation_child (param, show);
                

        } else {
                error << "AudioTimeAxisView: unknown automation child " << EventTypeMap::instance().to_symbol(param) << endmsg;
        }
}

void
AudioTimeAxisView::show_all_automation (bool apply_to_selection)
{
        if (apply_to_selection) {
                _editor.get_selection().tracks.foreach_audio_time_axis (boost::bind (&AudioTimeAxisView::show_all_automation, _1, false));
        } else {

                no_redraw = true;

                RouteTimeAxisView::show_all_automation ();

                no_redraw = false;
                request_redraw ();
        }
}

void
AudioTimeAxisView::show_existing_automation (bool apply_to_selection)
{
        if (apply_to_selection) {
                _editor.get_selection().tracks.foreach_audio_time_axis (boost::bind (&AudioTimeAxisView::show_existing_automation, _1, false));
        } else {
                no_redraw = true;

                RouteTimeAxisView::show_existing_automation ();

                no_redraw = false;

                request_redraw ();
        }
}

void
AudioTimeAxisView::hide_all_automation (bool apply_to_selection)
{
        if (apply_to_selection) {
                _editor.get_selection().tracks.foreach_audio_time_axis (boost::bind (&AudioTimeAxisView::hide_all_automation, _1, false));
        } else {
                no_redraw = true;

                RouteTimeAxisView::hide_all_automation();

                no_redraw = false;
                request_redraw ();
        }
}

void
AudioTimeAxisView::route_active_changed ()
{
        update_control_names ();
}


void
AudioTimeAxisView::update_control_names ()
{
        if (is_audio_track()) {
                if (_route->active()) {
                        controls_base_selected_name = "AudioTrackControlsBaseSelected";
                        controls_base_unselected_name = "AudioTrackControlsBaseUnselected";
                } else {
                        controls_base_selected_name = "AudioTrackControlsBaseInactiveSelected";
                        controls_base_unselected_name = "AudioTrackControlsBaseInactiveUnselected";
                }
        } else {
                if (_route->active()) {
                        controls_base_selected_name = "BusControlsBaseSelected";
                        controls_base_unselected_name = "BusControlsBaseUnselected";
                } else {
                        controls_base_selected_name = "BusControlsBaseInactiveSelected";
                        controls_base_unselected_name = "BusControlsBaseInactiveUnselected";
                }
        }

        if (get_selected()) {
                controls_ebox.set_name (controls_base_selected_name);
                time_axis_frame.set_name (controls_base_selected_name);
        } else {
                controls_ebox.set_name (controls_base_unselected_name);
                time_axis_frame.set_name (controls_base_unselected_name);
        }
}

void
AudioTimeAxisView::build_automation_action_menu (bool for_selection)
{
        RouteTimeAxisView::build_automation_action_menu (for_selection);
}