preferences.c

video linux conference

                                                    "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}
/****************************************************************************
 * GtkIntChanged: signal called when the user changes an integer value.
 ****************************************************************************/
static void GtkIntChanged( GtkEditable *editable, gpointer user_data )
{
    intf_thread_t *p_intf;
    module_config_t *p_config;
    GHashTable *hash_table;
    GtkWidget *apply_button;

    p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
                                                   "p_intf" );
    gtk_spin_button_update( GTK_SPIN_BUTTON(editable) );

    hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "config_hash_table" );

    /* free old p_config */
    p_config = (module_config_t *)g_hash_table_lookup( hash_table,
                                                       (gpointer)editable );
    if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );

    p_config = malloc( sizeof(module_config_t) );
    p_config->i_type = CONFIG_ITEM_INTEGER;
    p_config->i_value = gtk_spin_button_get_value_as_int(
                            GTK_SPIN_BUTTON(editable) );
    p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
                                                      "config_option" );

    g_hash_table_insert( hash_table, (gpointer)editable,
                         (gpointer)p_config );

    /* change the highlight status of the Apply button */
    apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}


/***************************************************************************************
 * GtkIntRangedChanged: signal called when the user changes an integer with range value.
 **************************************************************************************/
static void GtkIntRangedChanged( GtkEditable *editable, gpointer user_data )
{
    intf_thread_t *p_intf;
    module_config_t *p_config;
    GHashTable *hash_table;
    GtkWidget *apply_button;

    p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
                                                   "p_intf" );

    hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "config_hash_table" );

    /* free old p_config */
    p_config = (module_config_t *)g_hash_table_lookup( hash_table,
                                                       (gpointer)editable );
    if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );

    p_config = malloc( sizeof(module_config_t) );
    p_config->i_type = CONFIG_ITEM_INTEGER;
    p_config->i_value = ((GTK_ADJUSTMENT(editable))->value);
    p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
                                                      "config_option" );

    g_hash_table_insert( hash_table, (gpointer)editable,
                         (gpointer)p_config );

    /* change the highlight status of the Apply button */
    apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}

/****************************************************************************
 * GtkFloatChanged: signal called when the user changes a float value.
 ****************************************************************************/
static void GtkFloatChanged( GtkEditable *editable, gpointer user_data )
{
    intf_thread_t *p_intf;
    module_config_t *p_config;
    GHashTable *hash_table;
    GtkWidget *apply_button;

    p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
                                                   "p_intf" );
    gtk_spin_button_update( GTK_SPIN_BUTTON(editable) );

    hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "config_hash_table" );

    /* free old p_config */
    p_config = (module_config_t *)g_hash_table_lookup( hash_table,
                                                       (gpointer)editable );
    if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );

    p_config = malloc( sizeof(module_config_t) );
    p_config->i_type = CONFIG_ITEM_FLOAT;
    p_config->f_value = gtk_spin_button_get_value_as_float(
                           GTK_SPIN_BUTTON(editable) );
    p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
                                                      "config_option" );

    g_hash_table_insert( hash_table, (gpointer)editable,
                         (gpointer)p_config );

    /* change the highlight status of the Apply button */
    apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}

/***************************************************************************************
 * GtkIntRangedChanged: signal called when the user changes an integer with range value.
 **************************************************************************************/
static void GtkFloatRangedChanged( GtkEditable *editable, gpointer user_data )
{
    intf_thread_t *p_intf;
    module_config_t *p_config;
    GHashTable *hash_table;
    GtkWidget *apply_button;

    p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
                                                   "p_intf" );

    hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "config_hash_table" );

    /* free old p_config */
    p_config = (module_config_t *)g_hash_table_lookup( hash_table,
                                                       (gpointer)editable );
    if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );

    p_config = malloc( sizeof(module_config_t) );
    p_config->i_type = CONFIG_ITEM_FLOAT;
    p_config->f_value = ((GTK_ADJUSTMENT(editable))->value);
    p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
                                                      "config_option" );

    g_hash_table_insert( hash_table, (gpointer)editable,
                         (gpointer)p_config );

    /* change the highlight status of the Apply button */
    apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}

/****************************************************************************
 * GtkBoolChanged: signal called when the user changes a bool value.
 ****************************************************************************/
static void GtkBoolChanged( GtkToggleButton *button, gpointer user_data )
{
    intf_thread_t *p_intf;
    module_config_t *p_config;
    GHashTable *hash_table;
    GtkWidget *apply_button;

    p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(button),
                                                   "p_intf" );
    hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                    "config_hash_table" );

    /* free old p_config */
    p_config = (module_config_t *)g_hash_table_lookup( hash_table,
                                                       (gpointer)button );
    if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );

    p_config = malloc( sizeof(module_config_t) );
    p_config->i_type = CONFIG_ITEM_BOOL;
    p_config->i_value = gtk_toggle_button_get_active( button );
    p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(button),
                                                      "config_option" );

    g_hash_table_insert( hash_table, (gpointer)button,
                         (gpointer)p_config );

    /* change the highlight status of the Apply button */
    apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
                                                     "apply_button" );
    gtk_widget_set_sensitive( apply_button, TRUE );
}

/****************************************************************************
 * GtkFreeHashTable: signal called when the config hash table is destroyed.
 ****************************************************************************/
static void GtkFreeHashTable( GtkObject *object )
{
    GHashTable *hash_table = (GHashTable *)gtk_object_get_data( object,
                                                         "config_hash_table" );
    intf_thread_t *p_intf = (intf_thread_t *)gtk_object_get_data( object,
                                                                  "p_intf" );

    g_hash_table_foreach( hash_table, GtkFreeHashValue, (void *)p_intf );
    g_hash_table_destroy( hash_table );
}

/****************************************************************************
 * GtkFreeHashValue: signal called when an element of the config hash table
 * is destroyed.
 ****************************************************************************/
static void GtkFreeHashValue( gpointer key, gpointer value, gpointer user_data)
{
    module_config_t * p_config = (module_config_t *)value;

    if( p_config->i_type == CONFIG_ITEM_STRING )
        if( p_config->psz_value ) g_free( p_config->psz_value );
    free( p_config );
}

/****************************************************************************
 * GtkSaveHashValue: callback used when enumerating the hash table in
 * GtkConfigApply().
 ****************************************************************************/
static gboolean GtkSaveHashValue( gpointer key, gpointer value,
                                  gpointer user_data )
{
    intf_thread_t *   p_intf   = (intf_thread_t *)user_data;
    module_config_t * p_config = (module_config_t *)value;

    switch( p_config->i_type )
    {

    case CONFIG_ITEM_STRING:
    case CONFIG_ITEM_FILE:
    case CONFIG_ITEM_DIRECTORY:
    case CONFIG_ITEM_MODULE:
        config_PutPsz( p_intf, p_config->psz_name,
                       *p_config->psz_value ? p_config->psz_value : NULL );
        break;
    case CONFIG_ITEM_INTEGER:
    case CONFIG_ITEM_BOOL:
        config_PutInt( p_intf, p_config->psz_name, p_config->i_value );
        break;
    case CONFIG_ITEM_FLOAT:
        config_PutFloat( p_intf, p_config->psz_name, p_config->f_value );
        break;
    }

    /* free the hash value we allocated */
    if( p_config->i_type == CONFIG_ITEM_STRING )
        g_free( p_config->psz_value );
    free( p_config );

    /* return TRUE so glib will free the hash entry */
    return TRUE;
}

/****************************************************************************
 * GtkConfigDialogDestroyed: callback triggered when the config dialog box is
 * destroyed.
 ****************************************************************************/
static void GtkConfigDialogDestroyed( GtkObject *object, gpointer user_data )
{
    intf_thread_t *p_intf = (intf_thread_t *)user_data;
    char *psz_module_name;

    psz_module_name = gtk_object_get_data( object, "psz_module_name" );

    /* remove the ref to the dialog box */
    gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
                         psz_module_name, NULL );

    GtkFreeHashTable( object );
}