+static int total_weight(struct dive *dive)
+{
+ int i, total_grams = 0;
+
+ if (dive)
+ for (i=0; i< MAX_WEIGHTSYSTEMS; i++)
+ total_grams += dive->weightsystem[i].weight.grams;
+ return total_grams;
+}
+
+static void weight_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int indx, decimals;
+ double value;
+ char buffer[80];
+ struct dive *dive;
+
+ gtk_tree_model_get(model, iter, DIVE_INDEX, &indx, -1);
+ dive = get_dive(indx);
+ value = get_weight_units(total_weight(dive), &decimals, NULL);
+ if (value == 0.0)
+ *buffer = '\0';
+ else
+ snprintf(buffer, sizeof(buffer), "%.*f", decimals, value);
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+