8a8d47725c
Split pointer confinements in 2 objects, one set from the upper layers containing its definition, and another managed by the backend that applies it. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1403>
77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2015 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Written by:
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* Jonas Ådahl <jadahl@gmail.com>
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*/
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#ifndef META_POINTER_CONSTRAINT_H
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#define META_POINTER_CONSTRAINT_H
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#include <glib-object.h>
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#include "clutter/clutter.h"
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G_BEGIN_DECLS
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#define META_TYPE_POINTER_CONSTRAINT (meta_pointer_constraint_get_type ())
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G_DECLARE_FINAL_TYPE (MetaPointerConstraint, meta_pointer_constraint,
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META, POINTER_CONSTRAINT, GObject);
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MetaPointerConstraint * meta_pointer_constraint_new (const cairo_region_t *region);
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cairo_region_t * meta_pointer_constraint_get_region (MetaPointerConstraint *constraint);
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#define META_TYPE_POINTER_CONSTRAINT_IMPL (meta_pointer_constraint_impl_get_type ())
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G_DECLARE_DERIVABLE_TYPE (MetaPointerConstraintImpl, meta_pointer_constraint_impl,
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META, POINTER_CONSTRAINT_IMPL, GObject);
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/**
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* MetaPointerConstraintImplClass:
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* @constrain: the virtual function pointer for
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* meta_pointer_constraint_impl_constrain().
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*/
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struct _MetaPointerConstraintImplClass
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{
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GObjectClass parent_class;
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void (* constrain) (MetaPointerConstraintImpl *constraint_impl,
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ClutterInputDevice *device,
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uint32_t time,
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float prev_x,
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float prev_y,
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float *x,
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float *y);
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void (* ensure_constrained) (MetaPointerConstraintImpl *constraint_impl,
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ClutterInputDevice *device);
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};
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void meta_pointer_constraint_impl_constrain (MetaPointerConstraintImpl *constraint_impl,
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ClutterInputDevice *device,
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uint32_t time,
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float prev_x,
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float prev_y,
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float *x,
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float *y);
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void meta_pointer_constraint_impl_ensure_constrained (MetaPointerConstraintImpl *constraint_impl,
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ClutterInputDevice *device);
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G_END_DECLS
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#endif /* META_POINTER_CONSTRAINT_H */
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