| 1 | /* gtkconstraintprivate.h: Constraint between two widgets |
|---|---|
| 2 | * Copyright 2019 GNOME Foundation |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
| 16 | * |
| 17 | * Author: Emmanuele Bassi |
| 18 | */ |
| 19 | |
| 20 | #pragma once |
| 21 | |
| 22 | #include "gtkconstraint.h" |
| 23 | #include "gtkconstrainttypesprivate.h" |
| 24 | |
| 25 | G_BEGIN_DECLS |
| 26 | |
| 27 | struct _GtkConstraint |
| 28 | { |
| 29 | GObject parent_instance; |
| 30 | |
| 31 | GtkConstraintAttribute target_attribute; |
| 32 | GtkConstraintAttribute source_attribute; |
| 33 | |
| 34 | GtkConstraintTarget *target; |
| 35 | GtkConstraintTarget *source; |
| 36 | |
| 37 | GtkConstraintRelation relation; |
| 38 | |
| 39 | double multiplier; |
| 40 | double constant; |
| 41 | |
| 42 | int strength; |
| 43 | |
| 44 | /* A reference to the real constraint inside the |
| 45 | * GtkConstraintSolver, so we can remove it when |
| 46 | * finalizing the GtkConstraint instance |
| 47 | */ |
| 48 | GtkConstraintRef *constraint_ref; |
| 49 | |
| 50 | GtkConstraintSolver *solver; |
| 51 | |
| 52 | guint active : 1; |
| 53 | }; |
| 54 | |
| 55 | void gtk_constraint_attach (GtkConstraint *constraint, |
| 56 | GtkConstraintSolver *solver, |
| 57 | GtkConstraintRef *ref); |
| 58 | void gtk_constraint_detach (GtkConstraint *constraint); |
| 59 | |
| 60 | G_END_DECLS |
| 61 |