80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*
|
|
EXPLICITPLACEMENT.hpp - special Placement yielding an absolute location (Time,Track) for a MObject
|
|
|
|
Copyright (C) CinelerraCV
|
|
2007, Christian Thaeter <ct@pipapo.org>
|
|
|
|
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.
|
|
|
|
*/
|
|
|
|
|
|
#ifndef MOBJECT_EXPLICITPLACEMENT_H
|
|
#define MOBJECT_EXPLICITPLACEMENT_H
|
|
|
|
#include "proc/mobject/placement.hpp"
|
|
|
|
|
|
|
|
namespace mobject
|
|
{
|
|
|
|
|
|
|
|
/**
|
|
* Special kind of Placement, where the location of the
|
|
* MObject has been nailed down to a fixed position.
|
|
* The Session allways contains one special EDL, which
|
|
* actually is a snapshot of all EDLs contents fixed
|
|
* and reduced to simple positions. This so called Fixture
|
|
* contains only ExplicitPlacement objects and is processed
|
|
* by the Builder to create the render engine node network.
|
|
*
|
|
* @see Placement#resolve factory method for deriving an ExplicitPlacement
|
|
*/
|
|
class ExplicitPlacement : public Placement<MObject>
|
|
{
|
|
public:
|
|
const Time time;
|
|
const Track track;
|
|
|
|
/** no need to resolve any further, as this ExplicitPlacement
|
|
* already \i is the result of a resolve()-call.
|
|
*/
|
|
virtual
|
|
ExplicitPlacement resolve () const
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
protected:
|
|
/* @todo ichthyo considers a much more elegant implementation utilizing a subclass
|
|
* of FixedLocation, which would serve as Placement::LocatingSolution, and
|
|
* would be used as LocatingPin::chain subobject as well, so that it could
|
|
* be initialized directly here in the ExplicitPlacement ctor.
|
|
* (ichthyo: siehe Trac #100)
|
|
*/
|
|
ExplicitPlacement (Placement<MObject>& base, const session::FixedLocation found)
|
|
: Placement(base),
|
|
time(found.time_), track(found.track_)
|
|
{ };
|
|
|
|
friend ExplicitPlacement::resolve () const;
|
|
};
|
|
|
|
|
|
|
|
} // namespace mobject
|
|
#endif
|