+static void date_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int val;
+ struct tm *tm;
+ time_t when;
+ char buffer[40];
+
+ gtk_tree_model_get(model, iter, DIVE_DATE, &val, -1);
+
+ /* 2038 problem */
+ when = val;
+
+ tm = gmtime(&when);
+ snprintf(buffer, sizeof(buffer),
+ "%s, %s %d, %d %02d:%02d",
+ weekday(tm->tm_wday),
+ monthname(tm->tm_mon),
+ tm->tm_mday, tm->tm_year + 1900,
+ tm->tm_hour, tm->tm_min);
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+static void depth_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int depth, integer, frac, len;
+ char buffer[40];
+
+ gtk_tree_model_get(model, iter, DIVE_DEPTH, &depth, -1);
+
+ switch (output_units.length) {
+ case METERS:
+ /* To tenths of meters */
+ depth = (depth + 49) / 100;
+ integer = depth / 10;
+ frac = depth % 10;
+ if (integer < 20)
+ break;
+ frac = -1;
+ /* Rounding? */
+ break;
+ case FEET:
+ integer = mm_to_feet(depth) + 0.5;
+ frac = -1;
+ break;
+ default:
+ return;
+ }
+ len = snprintf(buffer, sizeof(buffer), "%d", integer);
+ if (frac >= 0)
+ len += snprintf(buffer+len, sizeof(buffer)-len, ".%d", frac);
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+static void duration_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ unsigned int sec;
+ char buffer[16];
+
+ gtk_tree_model_get(model, iter, DIVE_DURATION, &sec, -1);
+ snprintf(buffer, sizeof(buffer), "%d:%02d", sec / 60, sec % 60);
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+static void temperature_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int value;
+ char buffer[80];
+
+ gtk_tree_model_get(model, iter, DIVE_TEMPERATURE, &value, -1);
+
+ *buffer = 0;
+ if (value) {
+ double deg;
+ switch (output_units.temperature) {
+ case CELSIUS:
+ deg = mkelvin_to_C(value);
+ break;
+ case FAHRENHEIT:
+ deg = mkelvin_to_F(value);
+ break;
+ default:
+ return;
+ }
+ snprintf(buffer, sizeof(buffer), "%.1f", deg);
+ }
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+static void nitrox_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int value;
+ char buffer[80];
+
+ gtk_tree_model_get(model, iter, DIVE_NITROX, &value, -1);
+
+ if (value)
+ snprintf(buffer, sizeof(buffer), "%.1f", value/10.0);
+ else
+ strcpy(buffer, "air");
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+/* Render the SAC data (integer value of "ml / min") */
+static void sac_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int value;
+ const char *fmt;
+ char buffer[16];
+ double sac;
+
+ gtk_tree_model_get(model, iter, DIVE_SAC, &value, -1);
+
+ if (!value) {
+ g_object_set(renderer, "text", "", NULL);
+ return;
+ }
+
+ sac = value / 1000.0;
+ switch (output_units.volume) {
+ case LITER:
+ fmt = "%4.1f";
+ break;
+ case CUFT:
+ fmt = "%4.2f";
+ sac = ml_to_cuft(sac * 1000);
+ break;
+ }
+ snprintf(buffer, sizeof(buffer), fmt, sac);
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+/* Render the OTU data (integer value of "OTU") */
+static void otu_data_func(GtkTreeViewColumn *col,
+ GtkCellRenderer *renderer,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ int value;
+ char buffer[16];
+
+ gtk_tree_model_get(model, iter, DIVE_OTU, &value, -1);
+
+ if (!value) {
+ g_object_set(renderer, "text", "", NULL);
+ return;
+ }
+
+ snprintf(buffer, sizeof(buffer), "%d", value);
+
+ g_object_set(renderer, "text", buffer, NULL);
+}
+
+/* calculate OTU for a dive */
+static int calculate_otu(struct dive *dive)
+{
+ int i;
+ double otu = 0.0;
+
+ for (i = 1; i < dive->samples; i++) {
+ int t;
+ double po2;
+ struct sample *sample = dive->sample + i;
+ struct sample *psample = sample - 1;
+ t = sample->time.seconds - psample->time.seconds;
+ po2 = dive->cylinder[sample->cylinderindex].gasmix.o2.permille / 1000.0 *
+ (sample->depth.mm + 10000) / 10000.0;
+ if (po2 >= 0.5)
+ otu += pow(po2 - 0.5, 0.83) * t / 30.0;
+ }
+ return otu + 0.5;
+}
+/*
+ * Return air usage (in liters).
+ */
+static double calculate_airuse(struct dive *dive)
+{
+ double airuse = 0;
+ int i;
+
+ for (i = 0; i < MAX_CYLINDERS; i++) {
+ pressure_t start, end;
+ cylinder_t *cyl = dive->cylinder + i;
+ int size = cyl->type.size.mliter;
+ double kilo_atm;
+
+ if (!size)
+ continue;
+
+ start = cyl->start.mbar ? cyl->start : cyl->sample_start;
+ end = cyl->end.mbar ? cyl->end : cyl->sample_end;
+ kilo_atm = (to_ATM(start) - to_ATM(end)) / 1000.0;
+
+ /* Liters of air at 1 atm == milliliters at 1k atm*/
+ airuse += kilo_atm * size;
+ }
+ return airuse;
+}
+
+static int calculate_sac(struct dive *dive)
+{
+ double airuse, pressure, sac;
+
+ airuse = calculate_airuse(dive);
+ if (!airuse)
+ return 0;
+ if (!dive->duration.seconds)
+ return 0;
+
+ /* Mean pressure in atm: 1 atm per 10m */
+ pressure = 1 + (dive->meandepth.mm / 10000.0);
+ sac = airuse / pressure * 60 / dive->duration.seconds;
+
+ /* milliliters per minute.. */
+ return sac * 1000;
+}
+
+static void get_string(char **str, const char *s)
+{
+ int len;
+ char *n;
+
+ if (!s)
+ s = "";
+ len = strlen(s);
+ if (len > 40)
+ len = 40;
+ n = malloc(len+1);
+ memcpy(n, s, len);
+ n[len] = 0;
+ *str = n;
+}
+
+static void get_location(struct dive *dive, char **str)
+{
+ get_string(str, dive->location);
+}
+
+static void get_cylinder(struct dive *dive, char **str)
+{
+ get_string(str, dive->cylinder[0].type.description);
+}
+
+static void fill_one_dive(struct dive *dive,
+ GtkTreeModel *model,
+ GtkTreeIter *iter)
+{
+ char *location, *cylinder;
+
+ get_cylinder(dive, &cylinder);
+ get_location(dive, &location);
+
+ /*
+ * We only set the fields that changed: the strings.
+ * The core data itself is unaffected by units
+ */
+ gtk_list_store_set(GTK_LIST_STORE(model), iter,
+ DIVE_NR, dive->number,
+ DIVE_LOCATION, location,
+ DIVE_CYLINDER, cylinder,
+ DIVE_SAC, dive->sac,
+ DIVE_OTU, dive->otu,
+ -1);
+}
+
+static gboolean set_one_dive(GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ GValue value = {0, };
+ struct dive *dive;
+
+ /* Get the dive number */
+ gtk_tree_model_get_value(model, iter, DIVE_INDEX, &value);
+ dive = get_dive(g_value_get_int(&value));
+ if (!dive)
+ return TRUE;
+ if (data && dive != data)
+ return FALSE;
+
+ fill_one_dive(dive, model, iter);
+ return dive == data;
+}
+
+void flush_divelist(struct dive *dive)
+{
+ GtkTreeModel *model = GTK_TREE_MODEL(dive_list.model);
+
+ gtk_tree_model_foreach(model, set_one_dive, dive);
+}
+
+void set_divelist_font(const char *font)
+{
+ PangoFontDescription *font_desc = pango_font_description_from_string(font);
+ gtk_widget_modify_font(dive_list.tree_view, font_desc);
+ pango_font_description_free(font_desc);
+}
+
+void update_dive_list_units(void)
+{
+ const char *unit;
+ GtkTreeModel *model = GTK_TREE_MODEL(dive_list.model);
+
+ (void) get_depth_units(0, NULL, &unit);
+ gtk_tree_view_column_set_title(dive_list.depth, unit);
+
+ (void) get_temp_units(0, &unit);
+ gtk_tree_view_column_set_title(dive_list.temperature, unit);
+
+ gtk_tree_model_foreach(model, set_one_dive, NULL);