lumiera_/src/gui/widget/timeline/timeline-state.cpp
Ichthyostega 670c670d55 style-adjustment: GUI indentation, naming and braces
over time, a specific Lumiera code writing style has emerged.
The GUI, as it stood, used somewhat different conventions,
which now have been aligned to the common standard.

Basically we use GNU style, with some adjustments for OO-programming,
we prefer CamelCase, and write TypeNames uppercase, variableNames lowercase
2015-05-29 04:44:58 +02:00

143 lines
3.7 KiB
C++

/*
TimelineState - timeline presentation state holder
Copyright (C) Lumiera.org
2008, Joel Holdsworth <joel@airwebreathe.org.uk>
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 "gui/widget/timeline/timeline-state.hpp"
#include "lib/time/timevalue.hpp"
#include "lib/time/mutation.hpp"
#include "lib/time/control.hpp"
using namespace Gtk;
using namespace sigc;
namespace gui {
namespace widget {
namespace timeline {
using lib::time::FSecs;
using lib::time::Offset;
using lib::time::Duration;
using lib::time::Mutation;
using lib::time::Control;
using std::shared_ptr;
TimelineState::TimelineState (shared_ptr<model::Sequence> sourceSequence)
: sequence_(sourceSequence)
, viewWindow_(Offset(Time::ZERO), 1)
, selection_(Time::ZERO, Duration::NIL)
, selectionListener_()
, playbackPeriod_(Time::ZERO, Duration::NIL)
, playbackPoint_(Time::ZERO)
, isPlayback_(false)
{
REQUIRE(sequence_);
// Initialise the selection listener
selectionListener_ (TimeSpan (Time::ZERO, Duration::NIL));
selectionListener_.connect(
mem_fun(*this, &TimelineState::on_selection_changed));
////////////////////////////////////////////////////////////TICKET #798: how to handle GUI default state
const int64_t DEFAULT_TIMELINE_SCALE =6400;
viewWindow_.set_time_scale(DEFAULT_TIMELINE_SCALE);
setSelection (Mutation::changeTime (Time(FSecs(2))));
setSelection (Mutation::changeDuration (Duration(FSecs(2))));
//////////////////////////////////////////////////////TICKET #797 : this looks cheesy. Should provide a single Mutation to change all
}
shared_ptr<model::Sequence>
TimelineState::getSequence() const
{
return sequence_;
}
TimelineViewWindow&
TimelineState::getViewWindow()
{
return viewWindow_;
}
void
TimelineState::setSelection (Mutation const& change,
bool resetPlaybackPeriod)
{
selection_.accept (change);
if (resetPlaybackPeriod)
setPlaybackPeriod(change);
selectionChangedSignal_.emit();
}
void
TimelineState::setPlaybackPeriod (Mutation const& change)
{
playbackPeriod_.accept (change);
playbackChangedSignal_.emit();
}
void
TimelineState::setPlaybackPoint (Time newPosition)
{
playbackPoint_ = newPosition;
playbackChangedSignal_.emit();
}
void
TimelineState::setSelectionControl (SelectionControl &control)
{
control.disconnect();
selection_.accept (control);
control.connectChangeNotification (selectionListener_);
}
sigc::signal<void>
TimelineState::selectionChangedSignal() const
{
return selectionChangedSignal_;
}
sigc::signal<void>
TimelineState::playbackChangedSignal() const
{
return playbackChangedSignal_;
}
void
TimelineState::on_selection_changed (TimeSpan)
{
selectionChangedSignal_.emit();
}
}}}// namespace gui::widget::timeline