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livetrax/gtk2_ardour/editor_mixer.cc

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/*
Copyright (C) 2003-2004 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 <glibmm/miscutils.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/window_title.h>
#include <pbd/enumwriter.h>
#include <ardour/audioengine.h>
#include "editor.h"
#include "mixer_strip.h"
#include "ardour_ui.h"
#include "selection.h"
#include "audio_time_axis.h"
#include "actions.h"
#include "i18n.h"
using namespace Gtkmm2ext;
using namespace PBD;
void
Editor::editor_mixer_button_toggled ()
{
Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
if (act) {
Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
show_editor_mixer (tact->get_active());
}
}
void
Editor::cms_deleted ()
{
current_mixer_strip = 0;
}
void
Editor::show_editor_mixer (bool yn)
{
show_editor_mixer_when_tracks_arrive = false;
if (yn) {
if (current_mixer_strip == 0) {
if (selection->tracks.empty()) {
if (track_views.empty()) {
show_editor_mixer_when_tracks_arrive = true;
return;
}
for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
AudioTimeAxisView* atv;
if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
*session,
atv->route(), false);
current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
break;
}
}
} else {
sort_track_selection ();
for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
AudioTimeAxisView* atv;
if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
*session,
atv->route(), false);
current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
break;
}
}
}
if (current_mixer_strip == 0) {
return;
}
}
if (current_mixer_strip->get_parent() == 0) {
current_mixer_strip->set_embedded (true);
current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
global_hpacker.reorder_child (*current_mixer_strip, 0);
current_mixer_strip->show_all ();
}
} else {
if (current_mixer_strip) {
editor_mixer_strip_width = current_mixer_strip->get_width ();
if (current_mixer_strip->get_parent() != 0) {
global_hpacker.remove (*current_mixer_strip);
}
}
}
}
void
Editor::set_selected_mixer_strip (TimeAxisView& view)
{
RouteTimeAxisView* rt;
bool show = false;
if (!session || (rt = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
return;
}
if (current_mixer_strip) {
/* might be nothing to do */
if (current_mixer_strip->route() == rt->route()) {
return;
}
if (current_mixer_strip->get_parent()) {
show = true;
}
delete current_mixer_strip;
current_mixer_strip = 0;
}
current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
*session,
rt->route());
current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
if (show) {
show_editor_mixer (true);
}
}
double current = 0.0;
bool currentInitialized = 0;
void
Editor::update_current_screen ()
{
if (session && session->engine().running()) {
nframes_t frame;
frame = session->audible_frame();
if (_dragging_playhead) {
goto almost_done;
}
/* only update if the playhead is on screen or we are following it */
if (_follow_playhead) {
playhead_cursor->canvas_item.show();
if (frame != last_update_frame) {
#undef CONTINUOUS_SCROLL
#ifndef CONTINUOUS_SCROLL
if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
if (session->transport_speed() < 0) {
if (frame > (current_page_frames()/2)) {
center_screen (frame-(current_page_frames()/2));
} else {
center_screen (current_page_frames()/2);
}
} else {
center_screen (frame+(current_page_frames()/2));
}
}
playhead_cursor->set_position (frame);
#else // CONTINUOUS_SCROLL
/* don't do continuous scroll till the new position is in the rightmost quarter of the
editor canvas
*/
if (session->transport_speed()) {
double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
if (target <= 0.0) target = 0.0;
if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
target = (target * 0.15) + (current * 0.85);
} else {
/* relax */
}
//printf("frame: %d, cpf: %d, fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
current = target;
horizontal_adjustment.set_value ( current );
}
playhead_cursor->set_position (frame);
#endif // CONTINUOUS_SCROLL
}
} else {
if (frame != last_update_frame) {
if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
playhead_cursor->canvas_item.hide();
} else {
playhead_cursor->set_position (frame);
}
}
}
almost_done:
last_update_frame = frame;
if (current_mixer_strip) {
current_mixer_strip->fast_update ();
}
}
}
void
Editor::current_mixer_strip_removed ()
{
if (current_mixer_strip) {
/* it is being deleted */
current_mixer_strip = 0;
}
}
void
Editor::current_mixer_strip_hidden ()
{
for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
AudioTimeAxisView* tmp;
if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
if (tmp->route() == current_mixer_strip->route()) {
(*i)->set_selected (false);
break;
}
}
}
Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
if (act) {
Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
tact->set_active (false);
}
}
void
Editor::session_going_away ()
{
for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
(*i).disconnect ();
}
stop_scrolling ();
selection->clear ();
cut_buffer->clear ();
clicked_regionview = 0;
clicked_axisview = 0;
clicked_routeview = 0;
clicked_crossfadeview = 0;
entered_regionview = 0;
entered_track = 0;
latest_regionview = 0;
last_update_frame = 0;
drag_info.item = 0;
last_canvas_frame = 0;
/* hide all tracks */
hide_all_tracks (false);
/* rip everything out of the list displays */
region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
region_list_model->clear ();
route_display_model->clear ();
named_selection_model->clear ();
group_model->clear ();
region_list_display.set_model (region_list_model);
route_list_display.set_model (route_display_model);
named_selection_display.set_model (named_selection_model);
edit_group_display.set_model (group_model);
edit_cursor_clock.set_session (0);
zoom_range_clock.set_session (0);
nudge_clock.set_session (0);
/* put editor/mixer toggle button in off position and disable until a new session is loaded */
editor_mixer_button.set_active(false);
editor_mixer_button.set_sensitive(false);
/* clear tempo/meter rulers */
remove_metric_marks ();
hide_measures ();
clear_marker_display ();
if (current_bbt_points) {
delete current_bbt_points;
current_bbt_points = 0;
}
/* mixer strip will be deleted all by itself
when its route is deleted.
*/
current_mixer_strip = 0;
WindowTitle title(Glib::get_application_name());
title += _("Editor");
set_title (title.get_string());
session = 0;
}
void
Editor::maybe_add_mixer_strip_width (XMLNode& node)
{
if (current_mixer_strip) {
node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width()));
}
}