78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
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RELATIVELOCATION.hpp - Placement implementation attaching MObjects relative to another one
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Copyright (C) Lumiera.org
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2008, Hermann Vosseler <Ichthyostega@web.de>
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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 the
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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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#ifndef MOBJECT_SESSION_RELATIVELOCATION_H
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#define MOBJECT_SESSION_RELATIVELOCATION_H
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#include "proc/mobject/session/locatingpin.hpp"
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namespace mobject
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{
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namespace session
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{
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class RelativeLocation : public LocatingPin
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{
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const PMO & anchor_; ////////////TODO: ooooops, this is a nasty design problem!!!
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public:
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/**
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* the possible kinds of RelativePlacements
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*/
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enum RelType
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{ SAMETIME /**< place subject at the same time as the anchor */
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, ATTACH /**< attach subject to anchor (e.g. an effect to a clip) */
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};
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protected:
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RelativeLocation (const PMO& a, Time ofs) : anchor_(a), offset_(ofs) { }
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friend class LocatingPin;
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/** the kind of relation denoted by this Placement */
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RelType relType;
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/** Offset the actual position by this (time) value relative to the anchor point. */
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Time offset_;
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//TODO: suitable representation?
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virtual void intersect (LocatingSolution&) const;
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public:
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virtual RelativeLocation* clone () const;
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};
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} // namespace mobject::session
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} // namespace mobject
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#endif
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