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ardour/gtk2_ardour/audio_time_axis.cc
Carl Hetherington a2897ecef6 Fairly major change to the way in which crossfades are handled; 
they are now done with region fades, rather than separate objects.
After this commit, Ardour will try to convert your session files
to the new crossfade format, but will make a backup in your
session folder first.

If you have works in progress using Ardour 3 it is
***STRONGLY RECOMMENDED*** that you back up session files before
updating to this commit.


git-svn-id: svn://localhost/ardour2/branches/3.0@11986 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-04-16 16:32:22 +00:00

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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/amp.h"
#include "ardour/audioplaylist.h"
#include "ardour/event_type_map.h"
#include "ardour/location.h"
#include "ardour/pannable.h"
#include "ardour/panner.h"
#include "ardour/panner_shell.h"
#include "ardour/playlist.h"
#include "ardour/processor.h"
#include "ardour/profile.h"
#include "ardour/session.h"
#include "ardour/session_playlist.h"
#include "ardour/utils.h"
#include "ardour_button.h"
#include "ardour_ui.h"
#include "audio_time_axis.h"
#include "automation_line.h"
#include "canvas_impl.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 "simplerect.h"
#include "audio_streamview.h"
#include "utils.h"
#include "ardour/audio_track.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Editing;
AudioTimeAxisView::AudioTimeAxisView (PublicEditor& ed, Session* sess, 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 (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");
} else { // bus
controls_ebox.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 (_route->panner()) {
_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) {
cerr << "WARNING: Attempt to create NullAutomation child, ignoring" << endl;
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() == PanWidthAutomation ||
param.type() == PanElevationAutomation ||
param.type() == PanAzimuthAutomation) {
ensure_pan_views (show);
} else if (param.type() == PluginAutomation) {
/* handled elsewhere */
} else {
error << "AudioTimeAxisView: unknown automation child " << EventTypeMap::instance().to_symbol(param) << endmsg;
}
}
/** Ensure that we have the appropriate AutomationTimeAxisViews for the
* panners that we have.
*
* @param show true to show any new views that we create, otherwise false.
*/
void
AudioTimeAxisView::ensure_pan_views (bool show)
{
if (!_route->panner()) {
return;
}
set<Evoral::Parameter> params = _route->panner()->what_can_be_automated();
set<Evoral::Parameter>::iterator p;
for (p = params.begin(); p != params.end(); ++p) {
boost::shared_ptr<ARDOUR::AutomationControl> pan_control = _route->pannable()->automation_control(*p);
if (pan_control->parameter().type() == NullAutomation) {
error << "Pan control has NULL automation type!" << endmsg;
continue;
}
if (automation_child (pan_control->parameter ()).get () == 0) {
/* we don't already have an AutomationTimeAxisView for this parameter */
std::string const name = _route->panner()->describe_parameter (pan_control->parameter ());
boost::shared_ptr<AutomationTimeAxisView> t (
new AutomationTimeAxisView (_session,
_route,
_route->pannable(),
pan_control,
pan_control->parameter (),
_editor,
*this,
false,
parent_canvas,
name)
);
pan_tracks.push_back (t);
add_automation_child (*p, t, show);
}
}
}
void
AudioTimeAxisView::update_gain_track_visibility ()
{
bool const showit = gain_automation_item->get_active();
if (showit != string_is_affirmative (gain_track->gui_property ("visible"))) {
gain_track->set_marked_for_display (showit);
/* now trigger a redisplay */
if (!no_redraw) {
_route->gui_changed (X_("visible_tracks"), (void *) 0); /* EMIT_SIGNAL */
}
}
}
void
AudioTimeAxisView::update_pan_track_visibility ()
{
bool const showit = pan_automation_item->get_active();
bool changed = false;
for (list<boost::shared_ptr<AutomationTimeAxisView> >::iterator i = pan_tracks.begin(); i != pan_tracks.end(); ++i) {
if ((*i)->set_marked_for_display (showit)) {
changed = true;
}
}
if (changed) {
_route->gui_changed (X_("visible_tracks"), (void *) 0); /* EMIT_SIGNAL */
}
}
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 ();
}
/**
* Set up the names of the controls so that they are coloured
* correctly depending on whether this route is inactive or
* selected.
*/
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);
} else {
controls_ebox.set_name (controls_base_unselected_name);
}
}
void
AudioTimeAxisView::build_automation_action_menu (bool for_selection)
{
using namespace Menu_Helpers;
RouteTimeAxisView::build_automation_action_menu (for_selection);
MenuList& automation_items = automation_action_menu->items ();
automation_items.push_back (CheckMenuElem (_("Fader"), sigc::mem_fun (*this, &AudioTimeAxisView::update_gain_track_visibility)));
gain_automation_item = dynamic_cast<CheckMenuItem*> (&automation_items.back ());
gain_automation_item->set_active ((!for_selection || _editor.get_selection().tracks.size() == 1) &&
(gain_track && string_is_affirmative (gain_track->gui_property ("visible"))));
_main_automation_menu_map[Evoral::Parameter(GainAutomation)] = gain_automation_item;
automation_items.push_back (CheckMenuElem (_("Pan"), sigc::mem_fun (*this, &AudioTimeAxisView::update_pan_track_visibility)));
pan_automation_item = dynamic_cast<CheckMenuItem*> (&automation_items.back ());
pan_automation_item->set_active ((!for_selection || _editor.get_selection().tracks.size() == 1) &&
(!pan_tracks.empty() && string_is_affirmative (pan_tracks.front()->gui_property ("visible"))));
set<Evoral::Parameter> const & params = _route->pannable()->what_can_be_automated ();
for (set<Evoral::Parameter>::iterator p = params.begin(); p != params.end(); ++p) {
_main_automation_menu_map[*p] = pan_automation_item;
}
}
void
AudioTimeAxisView::enter_internal_edit_mode ()
{
if (audio_view()) {
audio_view()->enter_internal_edit_mode ();
}
}
void
AudioTimeAxisView::leave_internal_edit_mode ()
{
if (audio_view()) {
audio_view()->leave_internal_edit_mode ();
}
}
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