115 lines
3 KiB
C++
115 lines
3 KiB
C++
/*
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timeline-state.cpp - Implementation of the timeline state object
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Copyright (C) Lumiera.org
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2008, Joel Holdsworth <joel@airwebreathe.org.uk>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (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 "gui/widgets/timeline/timeline-state.hpp"
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#include "lib/time/timevalue.hpp"
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#include "lib/time/mutation.hpp"
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using namespace Gtk;
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using namespace sigc;
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namespace gui {
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namespace widgets {
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namespace timeline {
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using lib::time::FSecs;
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using lib::time::Offset;
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using lib::time::Duration;
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using lib::time::Mutation;
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using std::tr1::shared_ptr;
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TimelineState::TimelineState (std::tr1::shared_ptr<model::Sequence> source_sequence)
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: sequence(source_sequence)
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, viewWindow(Offset(Time::ZERO), 1)
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, selection_(Time::ZERO, Duration::NIL)
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, playbackPeriod_(Time::ZERO, Duration::NIL)
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, playbackPoint_(Time::ZERO)
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, isPlayback_(false)
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{
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REQUIRE(sequence);
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////////////////////////////////////////////////////////////TICKET #798: how to handle GUI default state
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const int64_t DEFAULT_TIMELINE_SCALE =21000000;
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viewWindow.set_time_scale(DEFAULT_TIMELINE_SCALE);
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setSelection (Mutation::changeTime (Time(FSecs(2))));
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setSelection (Mutation::changeDuration(Duration(FSecs(2))));
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//////////////////////////////////////////////////////TICKET #797 : this is cheesy. Should provide a single Mutation to change all
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}
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std::tr1::shared_ptr<model::Sequence>
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TimelineState::get_sequence() const
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{
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return sequence;
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}
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TimelineViewWindow&
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TimelineState::get_view_window()
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{
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return viewWindow;
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}
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void
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TimelineState::setSelection (Mutation const& change,
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bool resetPlaybackPeriod)
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{
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selection_.accept (change);
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if (resetPlaybackPeriod)
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setPlaybackPeriod(change);
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selectionChangedSignal.emit();
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}
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void
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TimelineState::setPlaybackPeriod (Mutation const& change)
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{
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playbackPeriod_.accept (change);
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playbackChangedSignal.emit();
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}
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void
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TimelineState::setPlaybackPoint (Time newPosition)
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{
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playbackPoint_ = newPosition;
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playbackChangedSignal.emit();
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}
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sigc::signal<void>
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TimelineState::selection_changed_signal() const
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{
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return selectionChangedSignal;
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}
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sigc::signal<void>
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TimelineState::playback_changed_signal() const
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{
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return playbackChangedSignal;
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}
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} // namespace timeline
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} // namespace widgets
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} // namespace gui
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