/usr/include/gegl-0.3/gegl-operations-util.h is in libgegl-dev 0.3.4-1ubuntu2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | /* This file is the public GEGL API
*
* GEGL 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 3 of the License, or (at your option) any later version.
*
* GEGL 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 GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* 2000-2008 © Calvin Williamson, Øyvind Kolås.
*/
#ifndef __GEGL_OPERATIONS_UTIL_H__
#define __GEGL_OPERATIONS_UTIL_H__
#if !defined (__GEGL_H_INSIDE__)
#error "This file can not be included directly, use <gegl.h> instead."
#endif
G_BEGIN_DECLS
/***
* Available operations:
* Gegl provides means to check for available processing operations that
* can be used with nodes using #gegl_list_operations and #gegl_has_operation.
* For a specified op, you can get a list of properties with
* #gegl_operation_list_properties.
*/
/**
* gegl_list_operations:
* @n_operations_p: (out caller-allocates): return location for number of operations.
*
* Return value: (transfer container) (array length=n_operations_p): An
* alphabetically sorted array of available operation names. This excludes any
* compat-name registered by operations. The list should be freed with g_free
* after use.
* ---
* gchar **operations;
* guint n_operations;
* gint i;
*
* operations = gegl_list_operations (&n_operations);
* g_print ("Available operations:\n");
* for (i=0; i < n_operations; i++)
* {
* g_print ("\t%s\n", operations[i]);
* }
* g_free (operations);
*/
gchar **gegl_list_operations (guint *n_operations_p);
/**
* gegl_has_operation:
* @operation_type: the name of the operation
*
* Return value: A boolean telling whether the operation is present or not. This
* also returns true for any compat-name registered by operations.
*/
gboolean gegl_has_operation (const gchar *operation_type);
/**
* gegl_operation_list_properties:
* @operation_type: the name of the operation type we want to query to properties of.
* @n_properties_p: (out caller-allocates): return location for number of properties.
*
* Return value: (transfer container) (array length=n_properties_p): An allocated array of #GParamSpecs describing the properties
* of the operation available when a node has operation_type set. The list should be freed with g_free after use.
*/
GParamSpec** gegl_operation_list_properties (const gchar *operation_type,
guint *n_properties_p);
/**
* gegl_operation_get_property_key:
* @operation_type: the name of the operation type we want to query to property keys for.
* @property_name: the property to query a key for.
* @property_key_name: the property mata data key to query
*
* Return value: NULL or a string with the meta-data value for the operation
* key.
*/
const gchar *
gegl_operation_get_property_key (const gchar *operation_type,
const gchar *property_name,
const gchar *property_key_name);
/**
* gegl_operation_list_property_keys:
* @operation_type: the name of the operation type we want to query to property keys for.
* @property_name: the property to query a key for.
* @n_keys: (out caller-allocates): return location for number of property
* keys.
*
* Return value: (transfer container) (array length=n_keys): An allocated NULL terminated array of property-key names. The list should be freed with g_free after use.
*/
gchar **
gegl_operation_list_property_keys (const gchar *operation_type,
const gchar *property_name,
guint *n_keys);
const gchar *gegl_param_spec_get_property_key (GParamSpec *pspec,
const gchar *key_name);
void gegl_param_spec_set_property_key (GParamSpec *pspec,
const gchar *key_name,
const gchar *value);
static inline gdouble
gegl_coordinate_relative_to_pixel (gdouble relative, gdouble pixel_dim)
{
return relative * pixel_dim;
}
static inline gdouble
gegl_coordinate_pixel_to_relative (gdouble pixel, gdouble pixel_dim)
{
return pixel / pixel_dim;
}
/**
* gegl_operation_list_keys:
* @operation_type: the name of the operation type we want to query to property keys for.
* @n_keys: (out caller-allocates): return location for number of property keys.
*
* Return value: (transfer container) (array length=n_keys): An allocated NULL
* terminated array of operation-key names. The list should be freed with g_free after use.
*/
gchar ** gegl_operation_list_keys (const gchar *operation_type,
guint *n_keys);
const gchar * gegl_operation_get_key (const gchar *operation_type,
const gchar *key_name);
G_END_DECLS
#endif /* __GEGL_OPERATIONS_UTIL_H__ */
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