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Add GtkConstraintTarget

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This is an marker interface that we will
use to accept other things that widgets
in constraints.
This commit is contained in:
Matthias Clasen 2019-06-25 15:04:05 -04:00 committed by Emmanuele Bassi
parent b6781e06c1
commit 04562a76e3
2 changed files with 29 additions and 0 deletions
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14
gtk/gtkconstraint.c
View File

@ -581,3 +581,17 @@ gtk_constraint_detach (GtkConstraint *constraint)
constraint->constraint_ref = NULL;
constraint->solver = NULL;
}
typedef struct _GtkConstraintTargetInterface GtkConstraintTargetInterface;
struct _GtkConstraintTargetInterface
{
GTypeInterface g_iface;
};
G_DEFINE_INTERFACE (GtkConstraintTarget, gtk_constraint_target, G_TYPE_OBJECT)
static void
gtk_constraint_target_default_init (GtkConstraintTargetInterface *iface)
{
}

15
gtk/gtkconstraint.h
View File

@ -24,6 +24,21 @@
G_BEGIN_DECLS
typedef struct _GtkConstraintTarget GtkConstraintTarget;
#define GTK_TYPE_CONSTRAINT_TARGET (gtk_constraint_target_get_type ())
/**
* GtkConstraintTarget:
*
* The GtkConstraintTarget interface is implemented by objects that
* can be used as source or target in #GtkConstraints. Besides
* #GtkWidget, it is also implemented by #GtkConstraintGuide.
*/
GDK_AVAILABLE_IN_ALL
G_DECLARE_INTERFACE (GtkConstraintTarget, gtk_constraint_target, GTK, CONSTRAINT_TARGET, GObject)
#define GTK_TYPE_CONSTRAINT (gtk_constraint_get_type ())
/**