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https://gitlab.gnome.org/GNOME/gimp.git
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fd5740e70b
which call gimp_item_get_by_id() and additionally check if the returned item has the right type, and return NULL if not. This is both shorter and more readable than layer = GIMP_LAYER (gimp_item_get_by_id (id)); and additionally makes sure we don't cast e.g. a non-layer with GIMP_LAYER(), which will give criticals but shouldn't, because the wrong IDs can come from anywhere and are an input problem and not a programming error (criticals are for programming errors).
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
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*
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* gimpvectors.h
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* Copyright (C) Jehan
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#if !defined (__GIMP_H_INSIDE__) && !defined (GIMP_COMPILATION)
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#error "Only <libgimp/gimp.h> can be included directly."
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#endif
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#ifndef __GIMP_VECTORS_H__
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#define __GIMP_VECTORS_H__
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G_BEGIN_DECLS
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/* For information look into the C source or the html documentation */
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#define GIMP_TYPE_VECTORS (gimp_vectors_get_type ())
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#define GIMP_VECTORS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_VECTORS, GimpVectors))
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#define GIMP_VECTORS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_VECTORS, GimpVectorsClass))
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#define GIMP_IS_VECTORS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_VECTORS))
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#define GIMP_IS_VECTORS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_VECTORS))
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#define GIMP_VECTORS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VECTORS, GimpVectorsClass))
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typedef struct _GimpVectorsClass GimpVectorsClass;
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typedef struct _GimpVectorsPrivate GimpVectorsPrivate;
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struct _GimpVectors
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{
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GimpItem parent_instance;
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GimpVectorsPrivate *priv;
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};
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struct _GimpVectorsClass
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{
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GimpItemClass parent_class;
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/* Padding for future expansion */
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void (*_gimp_reserved1) (void);
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void (*_gimp_reserved2) (void);
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void (*_gimp_reserved3) (void);
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void (*_gimp_reserved4) (void);
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void (*_gimp_reserved5) (void);
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void (*_gimp_reserved6) (void);
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void (*_gimp_reserved7) (void);
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void (*_gimp_reserved8) (void);
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};
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GType gimp_vectors_get_type (void) G_GNUC_CONST;
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GimpVectors * gimp_vectors_get_by_id (gint32 vectors_id);
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G_END_DECLS
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#endif /* __GIMP_VECTORS_H__ */
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