| 1 | /* gtkconstraint.h: Constraint between two widgets |
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| 2 | * Copyright 2019 GNOME Foundation |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | * |
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| 17 | * Author: Emmanuele Bassi |
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| 18 | */ |
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| 19 | |
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| 20 | #pragma once |
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| 21 | |
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| 22 | #include <gtk/gtktypes.h> |
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| 23 | #include <gtk/gtkenums.h> |
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| 24 | |
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| 25 | G_BEGIN_DECLS |
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| 26 | |
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| 27 | typedef struct _GtkConstraintTarget GtkConstraintTarget; |
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| 28 | |
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| 29 | #define GTK_TYPE_CONSTRAINT_TARGET (gtk_constraint_target_get_type ()) |
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| 30 | |
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| 31 | /** |
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| 32 | * GtkConstraintTarget: |
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| 33 | * |
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| 34 | * The `GtkConstraintTarget` interface is implemented by objects that |
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| 35 | * can be used as source or target in `GtkConstraint`s. |
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| 36 | * |
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| 37 | * Besides `GtkWidget`, it is also implemented by `GtkConstraintGuide`. |
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| 38 | */ |
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| 39 | |
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| 40 | GDK_AVAILABLE_IN_ALL |
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| 41 | G_DECLARE_INTERFACE (GtkConstraintTarget, gtk_constraint_target, GTK, CONSTRAINT_TARGET, GObject) |
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| 42 | |
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| 43 | #define GTK_TYPE_CONSTRAINT (gtk_constraint_get_type ()) |
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| 44 | |
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| 45 | GDK_AVAILABLE_IN_ALL |
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| 46 | G_DECLARE_FINAL_TYPE (GtkConstraint, gtk_constraint, GTK, CONSTRAINT, GObject) |
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| 47 | |
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| 48 | GDK_AVAILABLE_IN_ALL |
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| 49 | GtkConstraint * gtk_constraint_new (gpointer target, |
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| 50 | GtkConstraintAttribute target_attribute, |
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| 51 | GtkConstraintRelation relation, |
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| 52 | gpointer source, |
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| 53 | GtkConstraintAttribute source_attribute, |
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| 54 | double multiplier, |
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| 55 | double constant, |
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| 56 | int strength); |
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| 57 | GDK_AVAILABLE_IN_ALL |
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| 58 | GtkConstraint * gtk_constraint_new_constant (gpointer target, |
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| 59 | GtkConstraintAttribute target_attribute, |
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| 60 | GtkConstraintRelation relation, |
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| 61 | double constant, |
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| 62 | int strength); |
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| 63 | |
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| 64 | GDK_AVAILABLE_IN_ALL |
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| 65 | GtkConstraintTarget * gtk_constraint_get_target (GtkConstraint *constraint); |
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| 66 | GDK_AVAILABLE_IN_ALL |
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| 67 | GtkConstraintAttribute gtk_constraint_get_target_attribute (GtkConstraint *constraint); |
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| 68 | GDK_AVAILABLE_IN_ALL |
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| 69 | GtkConstraintTarget * gtk_constraint_get_source (GtkConstraint *constraint); |
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| 70 | GDK_AVAILABLE_IN_ALL |
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| 71 | GtkConstraintAttribute gtk_constraint_get_source_attribute (GtkConstraint *constraint); |
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| 72 | GDK_AVAILABLE_IN_ALL |
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| 73 | GtkConstraintRelation gtk_constraint_get_relation (GtkConstraint *constraint); |
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| 74 | GDK_AVAILABLE_IN_ALL |
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| 75 | double gtk_constraint_get_multiplier (GtkConstraint *constraint); |
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| 76 | GDK_AVAILABLE_IN_ALL |
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| 77 | double gtk_constraint_get_constant (GtkConstraint *constraint); |
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| 78 | GDK_AVAILABLE_IN_ALL |
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| 79 | int gtk_constraint_get_strength (GtkConstraint *constraint); |
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| 80 | |
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| 81 | GDK_AVAILABLE_IN_ALL |
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| 82 | gboolean gtk_constraint_is_required (GtkConstraint *constraint); |
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| 83 | GDK_AVAILABLE_IN_ALL |
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| 84 | gboolean gtk_constraint_is_attached (GtkConstraint *constraint); |
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| 85 | GDK_AVAILABLE_IN_ALL |
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| 86 | gboolean gtk_constraint_is_constant (GtkConstraint *constraint); |
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| 87 | |
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| 88 | G_END_DECLS |
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| 89 | |
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