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50ccd73592
To give us less changes of incorrect values when converting between scales (at the cost of 2x the array size).
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* pointcache.h
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*
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* Copyright (C) 2016 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef POINT_CACHE_H
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#define POINT_CACHE_H
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#include <glib.h>
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G_BEGIN_DECLS
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typedef struct _PointCache PointCache;
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typedef struct
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{
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gdouble x;
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gdouble y;
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} Point;
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PointCache *point_cache_new (void);
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PointCache *point_cache_ref (PointCache *self);
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void point_cache_unref (PointCache *self);
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void point_cache_add_set (PointCache *self,
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guint set_id);
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gboolean point_cache_contains_set (PointCache *self,
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guint set_id);
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void point_cache_add_point_to_set (PointCache *self,
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guint set_id,
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gdouble x,
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gdouble y);
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const Point *point_cache_get_points (PointCache *self,
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guint set_id,
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guint *n_points);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (PointCache, point_cache_unref)
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G_END_DECLS
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#endif /* POINT_CACHE_H */
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