75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
/*
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Copyright (C) 2022 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "pbd/i18n.h"
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#include "tempo_map_change.h"
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TempoMapChange::TempoMapChange (PublicEditor& e, std::string const & str, bool uoc, bool begin_now)
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: editor (e)
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, name (str)
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, aborted (false)
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, begun (false)
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, update_on_commit (uoc)
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, before (0)
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{
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if (begin_now) {
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begin ();
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}
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}
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TempoMapChange::~TempoMapChange ()
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{
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if (!aborted && begun) {
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XMLNode& after = writable_map->get_state();
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editor.session()->add_command (new Temporal::TempoCommand (_("tempo map change"), before, &after));
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editor.commit_tempo_map_edit (writable_map, update_on_commit);
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editor.commit_reversible_command ();
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}
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}
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void
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TempoMapChange::begin ()
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{
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writable_map = editor.begin_tempo_map_edit ();
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before = &writable_map->get_state();
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editor.begin_reversible_command (name);
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begun = true;
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}
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void
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TempoMapChange::abort ()
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{
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if (begun) {
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editor.abort_tempo_map_edit ();
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editor.abort_reversible_command ();
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aborted = true;
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begun = false;
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}
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}
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void
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TempoMapChange::use_new_map (Temporal::TempoMap::WritableSharedPtr new_map)
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{
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/* existing write copy goes out of scope, and is deleted, We continue
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* on with the new map, and will RCU-update it in our destructor.
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*/
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writable_map = new_map;
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}
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