Add typical 0 to 5 star rating for dives

[ext/subsurface.git] / divelist.c

diff --git a/divelist.c b/divelist.c
index 48a9ea99a5030fd679dd773190fa3405b388f263..3976382aa93f58e510bd159ca2de7e3bb0d74d10 100644 (file)
--- a/divelist.c
+++ b/divelist.c
@@ -25,7 +25,7 @@ struct DiveList {
        GtkWidget    *tree_view;
        GtkWidget    *container_widget;
        GtkListStore *model;
-       GtkTreeViewColumn *nr, *date, *depth, *duration, *location;
+       GtkTreeViewColumn *nr, *date, *stars, *depth, *duration, *location;
        GtkTreeViewColumn *temperature, *cylinder, *nitrox, *sac, *otu;
        int changed;
 };
@@ -40,6 +40,7 @@ enum {
        DIVE_INDEX = 0,
        DIVE_NR,                /* int: dive->nr */
        DIVE_DATE,              /* time_t: dive->when */
+       DIVE_RATING,            /* int: 0-5 stars */
        DIVE_DEPTH,             /* int: dive->maxdepth in mm */
        DIVE_DURATION,          /* int: in seconds */
        DIVE_TEMPERATURE,       /* int: in mkelvin */
@@ -89,6 +90,31 @@ static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
        }
 }
 
+const char *star_strings[] = {
+       ZERO_STARS,
+       ONE_STARS,
+       TWO_STARS,
+       THREE_STARS,
+       FOUR_STARS,
+       FIVE_STARS
+};
+
+static void star_data_func(GtkTreeViewColumn *col,
+                          GtkCellRenderer *renderer,
+                          GtkTreeModel *model,
+                          GtkTreeIter *iter,
+                          gpointer data)
+{
+       int nr_stars;
+       char buffer[40];
+
+       gtk_tree_model_get(model, iter, DIVE_RATING, &nr_stars, -1);
+       if (nr_stars < 0 || nr_stars > 5)
+               nr_stars = 0;
+       snprintf(buffer, sizeof(buffer), "%s", star_strings[nr_stars]);
+       g_object_set(renderer, "text", buffer, NULL);
+}
+
 static void date_data_func(GtkTreeViewColumn *col,
                           GtkCellRenderer *renderer,
                           GtkTreeModel *model,
@@ -320,6 +346,7 @@ static double calculate_airuse(struct dive *dive)
 static int calculate_sac(struct dive *dive)
 {
        double airuse, pressure, sac;
+       int duration, i;
 
        airuse = calculate_airuse(dive);
        if (!airuse)
@@ -327,9 +354,25 @@ static int calculate_sac(struct dive *dive)
        if (!dive->duration.seconds)
                return 0;
 
+       /* find and eliminate long surface intervals */
+       duration = dive->duration.seconds;
+       for (i = 0; i < dive->samples; i++) {
+               if (dive->sample[i].depth.mm < 100) { /* less than 10cm */
+                       int end = i + 1;
+                       while (end < dive->samples && dive->sample[end].depth.mm < 100)
+                               end++;
+                       /* we only want the actual surface time during a dive */
+                       if (end < dive->samples) {
+                               end--;
+                               duration -= dive->sample[end].time.seconds -
+                                               dive->sample[i].time.seconds;
+                               i = end + 1;
+                       }
+               }
+       }
        /* Mean pressure in atm: 1 atm per 10m */
        pressure = 1 + (dive->meandepth.mm / 10000.0);
-       sac = airuse / pressure * 60 / dive->duration.seconds;
+       sac = airuse / pressure * 60 / duration;
 
        /* milliliters per minute.. */
        return sac * 1000;
@@ -386,6 +429,7 @@ static void fill_one_dive(struct dive *dive,
                DIVE_NR, dive->number,
                DIVE_LOCATION, location,
                DIVE_CYLINDER, cylinder,
+               DIVE_RATING, dive->rating,
                DIVE_SAC, dive->sac,
                DIVE_OTU, dive->otu,
                -1);
@@ -528,6 +572,7 @@ GtkWidget *dive_list_create(void)
                                G_TYPE_INT,                     /* index */
                                G_TYPE_INT,                     /* nr */
                                G_TYPE_INT,                     /* Date */
+                               G_TYPE_INT,                     /* Star rating */
                                G_TYPE_INT,                     /* Depth */
                                G_TYPE_INT,                     /* Duration */
                                G_TYPE_INT,                     /* Temperature */
@@ -548,6 +593,7 @@ GtkWidget *dive_list_create(void)
        dive_list.nr = divelist_column(&dive_list, DIVE_NR, "#", NULL, PANGO_ALIGN_RIGHT, TRUE);
        gtk_tree_view_column_set_sort_column_id(dive_list.nr, -1);
        dive_list.date = divelist_column(&dive_list, DIVE_DATE, "Date", date_data_func, PANGO_ALIGN_LEFT, TRUE);
+       dive_list.stars = divelist_column(&dive_list, DIVE_RATING, "Rating", star_data_func, PANGO_ALIGN_LEFT, TRUE);
        dive_list.depth = divelist_column(&dive_list, DIVE_DEPTH, "ft", depth_data_func, PANGO_ALIGN_RIGHT, TRUE);
        dive_list.duration = divelist_column(&dive_list, DIVE_DURATION, "min", duration_data_func, PANGO_ALIGN_RIGHT, TRUE);
        dive_list.temperature = divelist_column(&dive_list, DIVE_TEMPERATURE, UTF8_DEGREE "F", temperature_data_func, PANGO_ALIGN_RIGHT, visible_cols.temperature);