mirror of https://github.com/GNOME/gimp.git
81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpthumbnailprocedure.h
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* Copyright (C) 2019 Michael Natterer <mitch@gimp.org>
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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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#ifndef __GIMP_THUMBNAIL_PROCEDURE_H__
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#define __GIMP_THUMBNAIL_PROCEDURE_H__
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#include <libgimp/gimpprocedure.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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/**
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* GimpRunThumbnailFunc:
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* @procedure: the #GimpProcedure that runs.
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* @file: the #GFile to load the thumbnail from.
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* @size: the requested thumbnail size.
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* @config: the @procedure's remaining arguments.
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* @run_data: (closure): the run_data given in gimp_thumbnail_procedure_new().
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*
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* The thumbnail function is run during the lifetime of the GIMP session,
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* each time a plug-in thumbnail procedure is called.
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*
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* [class@ThumbnailProcedure] are always run non-interactively.
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*
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* On success, the returned array must contain:
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* 1. a [class@Image]: this is the only mandatory return value. It should
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* ideally be a simple image whose dimensions are closest to @size and meant
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* to be displayed as a small static image.
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* 2. (optional) the full image's width (not the thumbnail's image's), or 0 if
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* unknown.
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* 3. (optional) the full image's height, or 0 if unknown.
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* 4. (optional) the [enum@ImageType] of the full image.
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* 5. (optional) the number of layers in the full image.
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*
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* Returns: (transfer full): the @procedure's return values.
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*
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* Since: 3.0
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**/
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typedef GimpValueArray * (* GimpRunThumbnailFunc) (GimpProcedure *procedure,
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GFile *file,
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gint size,
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GimpProcedureConfig *config,
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gpointer run_data);
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#define GIMP_TYPE_THUMBNAIL_PROCEDURE (gimp_thumbnail_procedure_get_type ())
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G_DECLARE_FINAL_TYPE (GimpThumbnailProcedure, gimp_thumbnail_procedure, GIMP, THUMBNAIL_PROCEDURE, GimpProcedure)
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GimpProcedure * gimp_thumbnail_procedure_new (GimpPlugIn *plug_in,
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const gchar *name,
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GimpPDBProcType proc_type,
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GimpRunThumbnailFunc run_func,
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gpointer run_data,
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GDestroyNotify run_data_destroy);
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G_END_DECLS
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#endif /* __GIMP_THUMBNAIL_PROCEDURE_H__ */
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