391f1d8dd4
Constraints can only update an existing allocation, which means they live only halfway through the layout management system used by Clutter; this limitation makes it impossible, for instance, to query the preferred size of an actor, if the actor is only using constraints to manage its own size.
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CLUTTER_CONSTRAINT_PRIVATE_H__
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#define __CLUTTER_CONSTRAINT_PRIVATE_H__
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#include "clutter-constraint.h"
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G_BEGIN_DECLS
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gboolean clutter_constraint_update_allocation (ClutterConstraint *constraint,
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ClutterActor *actor,
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ClutterActorBox *allocation);
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void clutter_constraint_update_preferred_size (ClutterConstraint *constraint,
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ClutterActor *actor,
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ClutterOrientation direction,
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float for_size,
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float *minimum_size,
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float *natural_size);
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G_END_DECLS
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#endif /* __CLUTTER_CONSTRAINT_PRIVATE_H__ */
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