1 /* GStreamer Mixer

     2  * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>

     3  *

     4  * mixeroptions.c: mixer track options object design

     5  *

     6  * This library is free software; you can redistribute it and/or

     7  * modify it under the terms of the GNU Library General Public

     8  * License as published by the Free Software Foundation; either

     9  * version 2 of the License, or (at your option) any later version.

    10  *

    11  * This library is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * Library General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU Library General Public

    17  * License along with this library; if not, write to the

    18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    19  * Boston, MA 02111-1307, USA.

    20  */

    21 

    22 #ifdef HAVE_CONFIG_H

    23 #include "config.h"

    24 #endif

    25 

    26 #include "mixeroptions.h"

    27 

    28 #if 0

    29 enum

    30 {

    31   /* FILL ME */

    32   SIGNAL_OPTION_CHANGED,

    33   LAST_SIGNAL

    34 };

    35 static guint signals[LAST_SIGNAL] = { 0 };

    36 #endif

    37 

    38 static void gst_mixer_options_class_init (GstMixerOptionsClass * klass);

    39 static void gst_mixer_options_init (GstMixerOptions * mixer);

    40 static void gst_mixer_options_dispose (GObject * object);

    41 

    42 static GObjectClass *parent_class = NULL;

    43 #ifdef __SYMBIAN32__

    44 EXPORT_C

    45 #endif

    46 

    47 

    48 GType

    49 gst_mixer_options_get_type (void)

    50 {

    51   static GType gst_mixer_options_type = 0;

    52 

    53   if (!gst_mixer_options_type) {

    54     static const GTypeInfo mixer_options_info = {

    55       sizeof (GstMixerOptionsClass),

    56       NULL,

    57       NULL,

    58       (GClassInitFunc) gst_mixer_options_class_init,

    59       NULL,

    60       NULL,

    61       sizeof (GstMixerOptions),

    62       0,

    63       (GInstanceInitFunc) gst_mixer_options_init,

    64       NULL

    65     };

    66 

    67     gst_mixer_options_type =

    68         g_type_register_static (GST_TYPE_MIXER_TRACK,

    69         "GstMixerOptions", &mixer_options_info, 0);

    70   }

    71 

    72   return gst_mixer_options_type;

    73 }

    74 

    75 static void

    76 gst_mixer_options_class_init (GstMixerOptionsClass * klass)

    77 {

    78   GObjectClass *object_klass = (GObjectClass *) klass;

    79 

    80   parent_class = g_type_class_peek_parent (klass);

    81 #if 0

    82   signals[SIGNAL_OPTION_CHANGED] =

    83       g_signal_new ("option_changed", G_TYPE_FROM_CLASS (klass),

    84       G_SIGNAL_RUN_LAST,

    85       G_STRUCT_OFFSET (GstMixerOptionsClass, option_changed),

    86       NULL, NULL, g_cclosure_marshal_VOID__STRING,

    87       G_TYPE_NONE, 1, G_TYPE_STRING);

    88 #endif

    89 

    90   object_klass->dispose = gst_mixer_options_dispose;

    91 }

    92 

    93 static void

    94 gst_mixer_options_init (GstMixerOptions * mixer_options)

    95 {

    96   mixer_options->values = NULL;

    97 }

    98 

    99 /**

   100  * gst_mixer_options_get_values:

   101  * @mixer_options: The #GstMixerOptions item that owns the values.

   102  *

   103  * Get the values for the mixer option.

   104  *

   105  * Returns: A list of strings with all the possible values for the mixer

   106  *     option. You must not free or modify the list or its contents, it belongs

   107  *     to the @mixer_options object.

   108  */

   109 #ifdef __SYMBIAN32__

   110 EXPORT_C

   111 #endif

   112 

   113 GList *

   114 gst_mixer_options_get_values (GstMixerOptions * mixer_options)

   115 {

   116   GstMixerOptionsClass *klass;

   117   GList *ret = NULL;

   118 

   119   g_return_val_if_fail (GST_IS_MIXER_OPTIONS (mixer_options), NULL);

   120 

   121   klass = GST_MIXER_OPTIONS_GET_CLASS (mixer_options);

   122 

   123   if (klass->get_values != NULL) {

   124     ret = klass->get_values (mixer_options);

   125   } else {

   126     ret = mixer_options->values;

   127   }

   128 

   129   return ret;

   130 }

   131 

   132 

   133 static void

   134 gst_mixer_options_dispose (GObject * object)

   135 {

   136   GstMixerOptions *opts = GST_MIXER_OPTIONS (object);

   137 

   138   g_list_foreach (opts->values, (GFunc) g_free, NULL);

   139   g_list_free (opts->values);

   140   opts->values = NULL;

   141 

   142   if (parent_class->dispose)

   143     parent_class->dispose (object);

   144 }