/usr/include/libfm-1.0/fm-thumbnail-loader.h is in libfm-dev 1.2.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | /*
* fm-thumbnail-loader.h
*
* Copyright 2013 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
*
* This file is a part of the Libfm library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __FM_THUMBNAIL_LOADER_H__
#define __FM_THUMBNAIL_LOADER_H__
#include <glib.h>
#include "fm-file-info.h"
/* If we're not using GNU C, elide __attribute__ */
#ifndef __GNUC__
# define __attribute__(x)
#endif
G_BEGIN_DECLS
typedef struct _FmThumbnailLoader FmThumbnailLoader;
/**
* FmThumbnailLoaderCallback:
* @req: request descriptor
* @data: user data provided when request was made
*
* The callback to requestor when thumbnail is ready.
* Note that this call is done outside of GTK loop so if the callback
* wants to use any GTK API it should call gdk_threads_enter() and
* gdk_threads_leave() for safety.
*
* Since: 1.2.0
*/
typedef void (*FmThumbnailLoaderCallback)(FmThumbnailLoader *req, gpointer data);
void _fm_thumbnail_loader_init();
void _fm_thumbnail_loader_finalize();
FmThumbnailLoader* fm_thumbnail_loader_load(FmFileInfo* src_file,
guint size,
FmThumbnailLoaderCallback callback,
gpointer user_data);
void fm_thumbnail_loader_cancel(FmThumbnailLoader* req);
GObject* fm_thumbnail_loader_get_data(FmThumbnailLoader* req);
FmFileInfo* fm_thumbnail_loader_get_file_info(FmThumbnailLoader* req);
guint fm_thumbnail_loader_get_size(FmThumbnailLoader* req);
/* for toolkit-specific image loading code */
typedef struct _FmThumbnailLoaderBackend FmThumbnailLoaderBackend;
/**
* FmThumbnailLoaderBackend:
* @read_image_from_file: callback to read image by file path
* @read_image_from_stream: callback to read image by opened #GInputStream
* @write_image: callback to write thumbnail file from image
* @scale_image: callback to change image sizes
* @rotate_image: callback to change image orientation
* @get_image_width: callback to retrieve width from image
* @get_image_height: callback to retrieve height from image
* @get_image_text: callback to retrieve custom attributes text from image
* @set_image_text: callback to set custom attributes text into image
*
* Abstract backend callbacks list.
*/
struct _FmThumbnailLoaderBackend {
GObject* (*read_image_from_file)(const char* filename);
GObject* (*read_image_from_stream)(GInputStream* stream, guint64 len, GCancellable* cancellable);
gboolean (*write_image)(GObject* image, const char* filename);
GObject* (*scale_image)(GObject* ori_pix, int new_width, int new_height);
GObject* (*rotate_image)(GObject* image, int degree);
int (*get_image_width)(GObject* image);
int (*get_image_height)(GObject* image);
char* (*get_image_text)(GObject* image, const char* key);
gboolean (*set_image_text)(GObject* image, const char* key, const char* val);
// const char* (*get_image_orientation)(GObject* image);
// GObject* (*apply_orientation)(GObject* image);
};
gboolean fm_thumbnail_loader_set_backend(FmThumbnailLoaderBackend* _backend)
__attribute__((warn_unused_result,nonnull(1)));
G_END_DECLS
#endif /* __FM_THUMBNAIL_LOADER_H__ */
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