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/* gtkconstraintprivate.h: Constraint between two widgets
* Copyright 2019 GNOME Foundation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Emmanuele Bassi
*/
#pragma once
#include "gtkconstraint.h"
#include "gtkconstrainttypesprivate.h"
G_BEGIN_DECLS
struct _GtkConstraint
{
GObject parent_instance;
GtkConstraintAttribute target_attribute;
GtkConstraintAttribute source_attribute;
GtkConstraintTarget *target;
GtkConstraintTarget *source;
GtkConstraintRelation relation;
double multiplier;
double constant;
int strength;
/* A reference to the real constraint inside the
* GtkConstraintSolver, so we can remove it when
* finalizing the GtkConstraint instance
*/
GtkConstraintRef *constraint_ref;
GtkConstraintSolver *solver;
guint active : 1;
};
void gtk_constraint_attach (GtkConstraint *constraint,
GtkConstraintSolver *solver,
GtkConstraintRef *ref);
void gtk_constraint_detach (GtkConstraint *constraint);
G_END_DECLS
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