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| 1 /* exif-mnote-data.c |
| 2 * |
| 3 * Copyright (C) 2003 Lutz Mueller <lutz@users.sourceforge.net> |
| 4 * |
| 5 * This library is free software; you can redistribute it and/or |
| 6 * modify it under the terms of the GNU Lesser General Public |
| 7 * License as published by the Free Software Foundation; either |
| 8 * version 2.1 of the License, or (at your option) any later version. |
| 9 * |
| 10 * This library is distributed in the hope that it will be useful, |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 * Lesser General Public License for more details. |
| 14 * |
| 15 * You should have received a copy of the GNU Lesser General Public |
| 16 * License along with this library; if not, write to the |
| 17 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 18 * Boston, MA 02110-1301 USA. |
| 19 */ |
| 20 |
| 21 #include <config.h> |
| 22 |
| 23 #include <libexif/exif-mnote-data.h> |
| 24 #include <libexif/exif-mnote-data-priv.h> |
| 25 |
| 26 #include <stdlib.h> |
| 27 #include <string.h> |
| 28 |
| 29 struct _ExifMnoteDataPriv |
| 30 { |
| 31 unsigned int ref_count; |
| 32 }; |
| 33 |
| 34 void |
| 35 exif_mnote_data_construct (ExifMnoteData *d, ExifMem *mem) |
| 36 { |
| 37 if (!d || !mem) return; |
| 38 if (d->priv) return; |
| 39 d->priv = exif_mem_alloc (mem, sizeof (ExifMnoteDataPriv)); |
| 40 if (!d->priv) return; |
| 41 |
| 42 d->priv->ref_count = 1; |
| 43 |
| 44 d->mem = mem; |
| 45 exif_mem_ref (mem); |
| 46 } |
| 47 |
| 48 void |
| 49 exif_mnote_data_ref (ExifMnoteData *d) |
| 50 { |
| 51 if (d && d->priv) d->priv->ref_count++; |
| 52 } |
| 53 |
| 54 static void |
| 55 exif_mnote_data_free (ExifMnoteData *d) |
| 56 { |
| 57 ExifMem *mem = d ? d->mem : NULL; |
| 58 |
| 59 if (!d) return; |
| 60 if (d->priv) { |
| 61 if (d->methods.free) d->methods.free (d); |
| 62 exif_mem_free (mem, d->priv); |
| 63 d->priv = NULL; |
| 64 } |
| 65 exif_log_unref (d->log); |
| 66 exif_mem_free (mem, d); |
| 67 exif_mem_unref (mem); |
| 68 } |
| 69 |
| 70 void |
| 71 exif_mnote_data_unref (ExifMnoteData *d) |
| 72 { |
| 73 if (!d || !d->priv) return; |
| 74 if (d->priv->ref_count > 0) d->priv->ref_count--; |
| 75 if (!d->priv->ref_count) |
| 76 exif_mnote_data_free (d); |
| 77 } |
| 78 |
| 79 void |
| 80 exif_mnote_data_load (ExifMnoteData *d, const unsigned char *buf, |
| 81 unsigned int buf_size) |
| 82 { |
| 83 if (!d || !d->methods.load) return; |
| 84 d->methods.load (d, buf, buf_size); |
| 85 } |
| 86 |
| 87 void |
| 88 exif_mnote_data_save (ExifMnoteData *d, unsigned char **buf, |
| 89 unsigned int *buf_size) |
| 90 { |
| 91 if (!d || !d->methods.save) return; |
| 92 d->methods.save (d, buf, buf_size); |
| 93 } |
| 94 |
| 95 void |
| 96 exif_mnote_data_set_byte_order (ExifMnoteData *d, ExifByteOrder o) |
| 97 { |
| 98 if (!d || !d->methods.set_byte_order) return; |
| 99 d->methods.set_byte_order (d, o); |
| 100 } |
| 101 |
| 102 void |
| 103 exif_mnote_data_set_offset (ExifMnoteData *d, unsigned int o) |
| 104 { |
| 105 if (!d || !d->methods.set_offset) return; |
| 106 d->methods.set_offset (d, o); |
| 107 } |
| 108 |
| 109 unsigned int |
| 110 exif_mnote_data_count (ExifMnoteData *d) |
| 111 { |
| 112 if (!d || !d->methods.count) return 0; |
| 113 return d->methods.count (d); |
| 114 } |
| 115 |
| 116 unsigned int |
| 117 exif_mnote_data_get_id (ExifMnoteData *d, unsigned int n) |
| 118 { |
| 119 if (!d || !d->methods.get_id) return 0; |
| 120 return d->methods.get_id (d, n); |
| 121 } |
| 122 |
| 123 const char * |
| 124 exif_mnote_data_get_name (ExifMnoteData *d, unsigned int n) |
| 125 { |
| 126 if (!d || !d->methods.get_name) return NULL; |
| 127 return d->methods.get_name (d, n); |
| 128 } |
| 129 |
| 130 const char * |
| 131 exif_mnote_data_get_title (ExifMnoteData *d, unsigned int n) |
| 132 { |
| 133 if (!d || !d->methods.get_title) return NULL; |
| 134 return d->methods.get_title (d, n); |
| 135 } |
| 136 |
| 137 const char * |
| 138 exif_mnote_data_get_description (ExifMnoteData *d, unsigned int n) |
| 139 { |
| 140 if (!d || !d->methods.get_description) return NULL; |
| 141 return d->methods.get_description (d, n); |
| 142 } |
| 143 |
| 144 char * |
| 145 exif_mnote_data_get_value (ExifMnoteData *d, unsigned int n, char *val, unsigned
int maxlen) |
| 146 { |
| 147 if (!d || !d->methods.get_value) return NULL; |
| 148 return d->methods.get_value (d, n, val, maxlen); |
| 149 } |
| 150 |
| 151 void |
| 152 exif_mnote_data_log (ExifMnoteData *d, ExifLog *log) |
| 153 { |
| 154 if (!d) return; |
| 155 exif_log_unref (d->log); |
| 156 d->log = log; |
| 157 exif_log_ref (log); |
| 158 } |
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