Пример #1
0
/**
 * trw_layer_geotag_dialog:
 * @parent: The Window of the calling process
 * @vtl: The VikTrwLayer to use for correlating images to tracks
 * @track: Optional - The particular track to use (if specified) for correlating images
 * @track_name: Optional - The name of specified track to use
 */
void trw_layer_geotag_dialog ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *track, const gchar *track_name )
{
	GeoTagWidgets *widgets = geotag_widgets_new();

	widgets->dialog = gtk_dialog_new_with_buttons ( _("Geotag Images"),
													parent,
													GTK_DIALOG_DESTROY_WITH_PARENT,
													GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
													GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
													NULL );
	widgets->files = VIK_FILE_LIST(vik_file_list_new ( _("Images") )); // TODO would be nice to be able to set a filefilter
	widgets->vtl = vtl;
	widgets->track = track;
	widgets->create_waypoints_b = GTK_CHECK_BUTTON ( gtk_check_button_new () );
	widgets->write_exif_b = GTK_CHECK_BUTTON ( gtk_check_button_new () );
	widgets->overwrite_gps_exif_l = GTK_LABEL ( gtk_label_new ( _("Overwrite Existing GPS Information:") ) );
	widgets->overwrite_gps_exif_b = GTK_CHECK_BUTTON ( gtk_check_button_new () );
	widgets->no_change_mtime_l = GTK_LABEL ( gtk_label_new ( _("Keep File Modification Timestamp:") ) );
	widgets->no_change_mtime_b = GTK_CHECK_BUTTON ( gtk_check_button_new () );
	widgets->interpolate_segments_b = GTK_CHECK_BUTTON ( gtk_check_button_new () );
	widgets->time_zone_b = GTK_ENTRY ( gtk_entry_new () );
	widgets->time_offset_b = GTK_ENTRY ( gtk_entry_new () );

	gtk_entry_set_width_chars ( widgets->time_zone_b, 7);
	gtk_entry_set_width_chars ( widgets->time_offset_b, 7);

	// Defaults - TODO restore previous values / save settings somewhere??
	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(widgets->create_waypoints_b), default_values.create_waypoints );
	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(widgets->write_exif_b), default_values.write_exif );
	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(widgets->overwrite_gps_exif_b), default_values.overwrite_gps_exif );
	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(widgets->no_change_mtime_b), default_values.no_change_mtime );
	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(widgets->interpolate_segments_b), default_values.interpolate_segments );
	gchar tmp_string[7];
	snprintf (tmp_string, 7, "%+02d:%02d", default_values.TimeZoneHours, abs (default_values.TimeZoneMins) );
	gtk_entry_set_text ( widgets->time_zone_b, tmp_string );
	snprintf (tmp_string, 7, "%d", default_values.time_offset );
	gtk_entry_set_text ( widgets->time_offset_b, tmp_string );

	// Ensure sensitivities setup
	write_exif_b_cb ( GTK_WIDGET(widgets->write_exif_b), widgets );

	g_signal_connect ( G_OBJECT(widgets->write_exif_b), "toggled", G_CALLBACK(write_exif_b_cb), widgets );

	GtkWidget *cw_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(cw_hbox), gtk_label_new ( _("Create Waypoints:") ), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(cw_hbox), GTK_WIDGET(widgets->create_waypoints_b), FALSE, FALSE, 5 );

	GtkWidget *we_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(we_hbox), gtk_label_new ( _("Write EXIF:") ), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(we_hbox), GTK_WIDGET(widgets->write_exif_b), FALSE, FALSE, 5 );

	GtkWidget *og_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(og_hbox), GTK_WIDGET(widgets->overwrite_gps_exif_l), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(og_hbox), GTK_WIDGET(widgets->overwrite_gps_exif_b), FALSE, FALSE, 5 );

	GtkWidget *fm_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(fm_hbox), GTK_WIDGET(widgets->no_change_mtime_l), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(fm_hbox), GTK_WIDGET(widgets->no_change_mtime_b), FALSE, FALSE, 5 );

	GtkWidget *is_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(is_hbox), gtk_label_new ( _("Interpolate Between Track Segments:") ), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(is_hbox), GTK_WIDGET(widgets->interpolate_segments_b), FALSE, FALSE, 5 );

	GtkWidget *to_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(to_hbox), gtk_label_new ( _("Image Time Offset (Seconds):") ), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(to_hbox), GTK_WIDGET(widgets->time_offset_b), FALSE, FALSE, 5 );
	gtk_widget_set_tooltip_text ( GTK_WIDGET(widgets->time_offset_b), _("The number of seconds to ADD to the photos time to make it match the GPS data. Calculate this with (GPS - Photo). Can be negative or positive. Useful to adjust times when a camera's timestamp was incorrect.") );

	GtkWidget *tz_hbox = gtk_hbox_new ( FALSE, 0 );
	gtk_box_pack_start ( GTK_BOX(tz_hbox), gtk_label_new ( _("Image Timezone:") ), FALSE, FALSE, 5 );
	gtk_box_pack_start ( GTK_BOX(tz_hbox), GTK_WIDGET(widgets->time_zone_b), FALSE, FALSE, 5 );
	gtk_widget_set_tooltip_text ( GTK_WIDGET(widgets->time_zone_b), _("The timezone that was used when the images were created. For example, if a camera is set to AWST or +8:00 hours. Enter +8:00 here so that the correct adjustment to the images' time can be made. GPS data is always in UTC.") );

	gchar *track_string = NULL;
	if ( widgets->track )
		track_string = g_strdup_printf ( _("Using track: %s"), track_name );
	else
		track_string = g_strdup_printf ( _("Using all tracks in: %s"), VIK_LAYER(widgets->vtl)->name );

	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), gtk_label_new ( track_string ), FALSE, FALSE, 5 );

	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), GTK_WIDGET(widgets->files), TRUE, TRUE, 0 );

	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), cw_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), we_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), og_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), fm_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), is_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), to_hbox,  FALSE, FALSE, 0);
	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(widgets->dialog)->vbox), tz_hbox,  FALSE, FALSE, 0);

	g_signal_connect ( widgets->dialog, "response", G_CALLBACK(trw_layer_geotag_response_cb), widgets );

	gtk_dialog_set_default_response ( GTK_DIALOG(widgets->dialog), GTK_RESPONSE_REJECT );

	gtk_widget_show_all ( widgets->dialog );

	g_free ( track_string );
}
Пример #2
0
GtkWidget *a_uibuilder_new_widget ( VikLayerParam *param, VikLayerParamData data )
{
  // Perform pre conversion if necessary
  VikLayerParamData vlpd = data;
  if ( param->convert_to_display )
   vlpd = param->convert_to_display ( data );

  GtkWidget *rv = NULL;
  switch ( param->widget_type )
  {
    case VIK_LAYER_WIDGET_COLOR:
      if ( param->type == VIK_LAYER_PARAM_COLOR )
        rv = gtk_color_button_new_with_color ( &(vlpd.c) );
      break;
    case VIK_LAYER_WIDGET_CHECKBUTTON:
      if ( param->type == VIK_LAYER_PARAM_BOOLEAN )
      {
        //rv = gtk_check_button_new_with_label ( //param->title );
        rv = gtk_check_button_new ();
        if ( vlpd.b )
          gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(rv), TRUE );
      }
      break;
    case VIK_LAYER_WIDGET_COMBOBOX:
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        /* Build a simple combobox */
        gchar **pstr = param->widget_data;
        rv = vik_combo_box_text_new ();
        while ( *pstr )
          vik_combo_box_text_append ( rv, *(pstr++) );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          /* Set the effective default value */
          int i;
          for ( i = 0; ((const char **)param->widget_data)[i]; i++ )
            if ( ((guint *)param->extra_widget_data)[i] == vlpd.u )
            {
              /* Match default value */
              gtk_combo_box_set_active ( GTK_COMBO_BOX(rv), i );
              break;
            }
        }
        else
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), vlpd.u );
      }
      else if ( param->type == VIK_LAYER_PARAM_STRING && param->widget_data && !param->extra_widget_data )
      {
        /* Build a combobox with editable text */
        gchar **pstr = param->widget_data;
#if GTK_CHECK_VERSION (2, 24, 0)
        rv = gtk_combo_box_text_new_with_entry ();
#else
        rv = gtk_combo_box_entry_new_text ();
#endif
        if ( vlpd.s )
          vik_combo_box_text_append ( rv, vlpd.s );
        while ( *pstr )
          vik_combo_box_text_append ( rv, *(pstr++) );
        if ( vlpd.s )
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), 0 );
      }
      else if ( param->type == VIK_LAYER_PARAM_STRING && param->widget_data && param->extra_widget_data)
      {
        /* Build a combobox with fixed selections without editable text */
        gchar **pstr = param->widget_data;
        rv = GTK_WIDGET ( vik_combo_box_text_new () );
        while ( *pstr )
          vik_combo_box_text_append ( rv, *(pstr++) );
        if ( vlpd.s )
        {
          /* Set the effective default value */
          /* In case of value does not exist, set the first value */
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), 0 );
          int i;
          for ( i = 0; ((const char **)param->widget_data)[i]; i++ )
            if ( strcmp(((const char **)param->extra_widget_data)[i], vlpd.s) == 0 )
            {
              /* Match default value */
              gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), i );
              break; 
            }
        }
        else
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), 0 );
      }
      break;
    case VIK_LAYER_WIDGET_RADIOGROUP:
      /* widget_data and extra_widget_data are GList */
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        rv = vik_radio_group_new ( param->widget_data );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          int i;
          int nb_elem = g_list_length(param->widget_data);
          for ( i = 0; i < nb_elem; i++ )
            if ( GPOINTER_TO_UINT ( g_list_nth_data(param->extra_widget_data, i) ) == vlpd.u )
            {
              vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), i );
              break;
            }
        }
        else if ( vlpd.u ) /* zero is already default */
          vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), vlpd.u );
      }
      break;
    case VIK_LAYER_WIDGET_RADIOGROUP_STATIC:
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        rv = vik_radio_group_new_static ( (const gchar **) param->widget_data );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          int i;
          for ( i = 0; ((const char **)param->widget_data)[i]; i++ )
            if ( ((guint *)param->extra_widget_data)[i] == vlpd.u )
            {
              vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), i );
              break;
            }
        }
        else if ( vlpd.u ) /* zero is already default */
          vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), vlpd.u );
      }
      break;
    case VIK_LAYER_WIDGET_SPINBUTTON:
      if ( (param->type == VIK_LAYER_PARAM_DOUBLE || param->type == VIK_LAYER_PARAM_UINT
           || param->type == VIK_LAYER_PARAM_INT)  && param->widget_data )
      {
        gdouble init_val = (param->type == VIK_LAYER_PARAM_DOUBLE) ? vlpd.d : (param->type == VIK_LAYER_PARAM_UINT ? vlpd.u : vlpd.i);
        VikLayerParamScale *scale = (VikLayerParamScale *) param->widget_data;
        rv = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( init_val, scale->min, scale->max, scale->step, scale->step, 0 )), scale->step, scale->digits );
      }
    break;
    case VIK_LAYER_WIDGET_ENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = gtk_entry_new ();
        if ( vlpd.s )
          gtk_entry_set_text ( GTK_ENTRY(rv), vlpd.s );
      }
      break;
    case VIK_LAYER_WIDGET_PASSWORD:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = gtk_entry_new ();
        gtk_entry_set_visibility ( GTK_ENTRY(rv), FALSE );
        if ( vlpd.s )
          gtk_entry_set_text ( GTK_ENTRY(rv), vlpd.s );
        gtk_widget_set_tooltip_text ( GTK_WIDGET(rv),
                                     _("Take care that this password will be stored clearly in a plain file.") );
      }
      break;
    case VIK_LAYER_WIDGET_FILEENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = vik_file_entry_new (GTK_FILE_CHOOSER_ACTION_OPEN);
        if ( vlpd.s )
          vik_file_entry_set_filename ( VIK_FILE_ENTRY(rv), vlpd.s );
      }
      break;
    case VIK_LAYER_WIDGET_FOLDERENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = vik_file_entry_new (GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
        if ( vlpd.s )
          vik_file_entry_set_filename ( VIK_FILE_ENTRY(rv), vlpd.s );
      }
      break;

    case VIK_LAYER_WIDGET_FILELIST:
      if ( param->type == VIK_LAYER_PARAM_STRING_LIST )
      {
        rv = vik_file_list_new ( _(param->title) );
        vik_file_list_set_files ( VIK_FILE_LIST(rv), vlpd.sl );
      }
      break;
    case VIK_LAYER_WIDGET_HSCALE:
      if ( (param->type == VIK_LAYER_PARAM_DOUBLE || param->type == VIK_LAYER_PARAM_UINT
           || param->type == VIK_LAYER_PARAM_INT)  && param->widget_data )
      {
        gdouble init_val = (param->type == VIK_LAYER_PARAM_DOUBLE) ? vlpd.d : (param->type == VIK_LAYER_PARAM_UINT ? vlpd.u : vlpd.i);
        VikLayerParamScale *scale = (VikLayerParamScale *) param->widget_data;
        rv = gtk_hscale_new_with_range ( scale->min, scale->max, scale->step );
        gtk_scale_set_digits ( GTK_SCALE(rv), scale->digits );
        gtk_range_set_value ( GTK_RANGE(rv), init_val );
      }
  }
  if ( rv && !gtk_widget_get_tooltip_text ( rv ) ) {
    if ( param->tooltip )
      gtk_widget_set_tooltip_text ( rv, _(param->tooltip) );
  }
  return rv;
}
Пример #3
0
GtkWidget *a_uibuilder_new_widget ( VikLayerParam *param, VikLayerParamData data )
{
  GtkWidget *rv = NULL;
  switch ( param->widget_type )
  {
    case VIK_LAYER_WIDGET_COLOR:
      if ( param->type == VIK_LAYER_PARAM_COLOR )
        rv = gtk_color_button_new_with_color ( &(data.c) );
      break;
    case VIK_LAYER_WIDGET_CHECKBUTTON:
      if ( param->type == VIK_LAYER_PARAM_BOOLEAN )
      {
        //rv = gtk_check_button_new_with_label ( //param->title );
        rv = gtk_check_button_new ();
        if ( data.b )
          gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(rv), TRUE );
      }
      break;
    case VIK_LAYER_WIDGET_COMBOBOX:
#ifndef GTK_2_2
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        gchar **pstr = param->widget_data;
        rv = gtk_combo_box_new_text ();
        while ( *pstr )
          gtk_combo_box_append_text ( GTK_COMBO_BOX ( rv ), *(pstr++) );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          int i;
          for ( i = 0; ((const char **)param->widget_data)[i]; i++ )
            if ( ((guint *)param->extra_widget_data)[i] == data.u )
            {
              gtk_combo_box_set_active ( GTK_COMBO_BOX(rv), i );
              break;
            }
        }
        else
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), data.u );
      }
      else if ( param->type == VIK_LAYER_PARAM_STRING && param->widget_data )
      {
        gchar **pstr = param->widget_data;
        rv = GTK_WIDGET ( gtk_combo_box_entry_new_text () );
        if ( data.s )
          gtk_combo_box_append_text ( GTK_COMBO_BOX ( rv ), data.s );
        while ( *pstr )
          gtk_combo_box_append_text ( GTK_COMBO_BOX ( rv ), *(pstr++) );
        if ( data.s )
          gtk_combo_box_set_active ( GTK_COMBO_BOX ( rv ), 0 );
      }
      break;
#endif
    case VIK_LAYER_WIDGET_RADIOGROUP:
      /* widget_data and extra_widget_data are GList */
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        rv = vik_radio_group_new ( param->widget_data );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          int i;
          int nb_elem = g_list_length(param->widget_data);
          for ( i = 0; i < nb_elem; i++ )
            if ( GPOINTER_TO_UINT ( g_list_nth_data(param->extra_widget_data, i) ) == data.u )
            {
              vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), i );
              break;
            }
        }
        else if ( data.u ) /* zero is already default */
          vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), data.u );
      }
      break;
    case VIK_LAYER_WIDGET_RADIOGROUP_STATIC:
      if ( param->type == VIK_LAYER_PARAM_UINT && param->widget_data )
      {
        rv = vik_radio_group_new_static ( (const gchar **) param->widget_data );
        if ( param->extra_widget_data ) /* map of alternate uint values for options */
        {
          int i;
          for ( i = 0; ((const char **)param->widget_data)[i]; i++ )
            if ( ((guint *)param->extra_widget_data)[i] == data.u )
            {
              vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), i );
              break;
            }
        }
        else if ( data.u ) /* zero is already default */
          vik_radio_group_set_selected ( VIK_RADIO_GROUP(rv), data.u );
      }
      break;
    case VIK_LAYER_WIDGET_SPINBUTTON:
      if ( (param->type == VIK_LAYER_PARAM_DOUBLE || param->type == VIK_LAYER_PARAM_UINT
           || param->type == VIK_LAYER_PARAM_INT)  && param->widget_data )
      {
        gdouble init_val = (param->type == VIK_LAYER_PARAM_DOUBLE) ? data.d : (param->type == VIK_LAYER_PARAM_UINT ? data.u : data.i);
        VikLayerParamScale *scale = (VikLayerParamScale *) param->widget_data;
        rv = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( init_val, scale->min, scale->max, scale->step, scale->step, 0 )), scale->step, scale->digits );
      }
    break;
    case VIK_LAYER_WIDGET_ENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = gtk_entry_new ();
        if (data.s)
          gtk_entry_set_text ( GTK_ENTRY(rv), data.s );
      }
      break;
    case VIK_LAYER_WIDGET_PASSWORD:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = gtk_entry_new ();
        gtk_entry_set_visibility ( GTK_ENTRY(rv), FALSE );
        if (data.s)
          gtk_entry_set_text ( GTK_ENTRY(rv), data.s );
#if GTK_CHECK_VERSION(2,12,0)
	gtk_widget_set_tooltip_text ( GTK_WIDGET(rv),
	                              _("Take care that this password will be stored clearly in a plain file.") );
#endif
      }
      break;
    case VIK_LAYER_WIDGET_FILEENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = vik_file_entry_new (GTK_FILE_CHOOSER_ACTION_OPEN);
        vik_file_entry_set_filename ( VIK_FILE_ENTRY(rv), data.s );
      }
      break;
    case VIK_LAYER_WIDGET_FOLDERENTRY:
      if ( param->type == VIK_LAYER_PARAM_STRING )
      {
        rv = vik_file_entry_new (GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
        vik_file_entry_set_filename ( VIK_FILE_ENTRY(rv), data.s );
      }
      break;

    case VIK_LAYER_WIDGET_FILELIST:
      if ( param->type == VIK_LAYER_PARAM_STRING_LIST )
      {
        rv = vik_file_list_new ( _(param->title) );
        vik_file_list_set_files ( VIK_FILE_LIST(rv), data.sl );
      }
      break;
    case VIK_LAYER_WIDGET_HSCALE:
      if ( (param->type == VIK_LAYER_PARAM_DOUBLE || param->type == VIK_LAYER_PARAM_UINT
           || param->type == VIK_LAYER_PARAM_INT)  && param->widget_data )
      {
        gdouble init_val = (param->type == VIK_LAYER_PARAM_DOUBLE) ? data.d : (param->type == VIK_LAYER_PARAM_UINT ? data.u : data.i);
        VikLayerParamScale *scale = (VikLayerParamScale *) param->widget_data;
        rv = gtk_hscale_new_with_range ( scale->min, scale->max, scale->step );
        gtk_scale_set_digits ( GTK_SCALE(rv), scale->digits );
        gtk_range_set_value ( GTK_RANGE(rv), init_val );
      }
  }
  return rv;
}