61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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/* gtkconstraintprivate.h: Constraint between two widgets
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* Copyright 2019 GNOME Foundation
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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 2.1 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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* Author: Emmanuele Bassi
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*/
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#pragma once
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#include "gtkconstraint.h"
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#include "gtkconstrainttypesprivate.h"
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G_BEGIN_DECLS
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struct _GtkConstraint
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{
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GObject parent_instance;
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GtkConstraintAttribute target_attribute;
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GtkConstraintAttribute source_attribute;
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GtkConstraintTarget *target;
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GtkConstraintTarget *source;
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GtkConstraintRelation relation;
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double multiplier;
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double constant;
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int strength;
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/* A reference to the real constraint inside the
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* GtkConstraintSolver, so we can remove it when
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* finalizing the GtkConstraint instance
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*/
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GtkConstraintRef *constraint_ref;
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GtkConstraintSolver *solver;
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guint active : 1;
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};
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void gtk_constraint_attach (GtkConstraint *constraint,
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GtkConstraintSolver *solver,
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GtkConstraintRef *ref);
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void gtk_constraint_detach (GtkConstraint *constraint);
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G_END_DECLS
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