1 /* GStreamer Navigation

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

     3  *

     4  * navigation.c: navigation design virtual class function wrappers

     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 <gst/interfaces/navigation.h>

    27 

    28 static void gst_navigation_class_init (GstNavigationInterface * iface);

    29 #ifdef __SYMBIAN32__

    30 EXPORT_C

    31 #endif

    32 

    33 

    34 GType

    35 gst_navigation_get_type (void)

    36 {

    37   static GType gst_navigation_type = 0;

    38 

    39   if (!gst_navigation_type) {

    40     static const GTypeInfo gst_navigation_info = {

    41       sizeof (GstNavigationInterface),

    42       (GBaseInitFunc) gst_navigation_class_init,

    43       NULL,

    44       NULL,

    45       NULL,

    46       NULL,

    47       0,

    48       0,

    49       NULL,

    50     };

    51 

    52     gst_navigation_type = g_type_register_static (G_TYPE_INTERFACE,

    53         "GstNavigation", &gst_navigation_info, 0);

    54   }

    55 

    56   return gst_navigation_type;

    57 }

    58 

    59 static void

    60 gst_navigation_class_init (GstNavigationInterface * iface)

    61 {

    62   /* default virtual functions */

    63   iface->send_event = NULL;

    64 }

    65 

    66 /* The interface implementer should make sure that the object can handle

    67  * the event. */

    68 #ifdef __SYMBIAN32__

    69 EXPORT_C

    70 #endif

    71 

    72 void

    73 gst_navigation_send_event (GstNavigation * navigation, GstStructure * structure)

    74 {

    75   GstNavigationInterface *iface = GST_NAVIGATION_GET_IFACE (navigation);

    76 

    77   if (iface->send_event) {

    78     iface->send_event (navigation, structure);

    79   }

    80 }

    81 #ifdef __SYMBIAN32__

    82 EXPORT_C

    83 #endif

    84 

    85 

    86 void

    87 gst_navigation_send_key_event (GstNavigation * navigation, const char *event,

    88     const char *key)

    89 {

    90   gst_navigation_send_event (navigation,

    91       gst_structure_new ("application/x-gst-navigation", "event", G_TYPE_STRING,

    92           event, "key", G_TYPE_STRING, key, NULL));

    93 }

    94 #ifdef __SYMBIAN32__

    95 EXPORT_C

    96 #endif

    97 

    98 

    99 void

   100 gst_navigation_send_mouse_event (GstNavigation * navigation, const char *event,

   101     int button, double x, double y)

   102 {

   103   gst_navigation_send_event (navigation,

   104       gst_structure_new ("application/x-gst-navigation", "event", G_TYPE_STRING,

   105           event, "button", G_TYPE_INT, button, "pointer_x", G_TYPE_DOUBLE, x,

   106           "pointer_y", G_TYPE_DOUBLE, y, NULL));

   107 }