divelist.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <time.h>
   5
   6 #include "divelist.h"
   7 #include "dive.h"
   8 #include "display.h"
   9
  10 /*
  11  * The dive list has the dive data in both string format (for showing)
  12  * and in "raw" format (for sorting purposes)
  13  */
  14 enum {
  15         DIVE_INDEX = 0,
  16         DIVE_DATE,              /* time_t: dive->when */
  17         DIVE_DEPTH,             /* int: dive->maxdepth in mm */
  18         DIVE_DURATIONSTR,       /* "47" in minutes */
  19         DIVE_DURATION,          /* int: in seconds */
  20         DIVE_LOCATION,          /* "47" in minutes */
  21         DIVE_TEMPSTR,           /* "78" in fahrenheit or whatever */
  22         DIVE_TEMP,              /* int: in mkelvin */
  23         DIVE_NITROXSTR,         /* "32.5" in percent */
  24         DIVE_NITROX,            /* int: in permille */
  25         DIVE_SACSTR,            /* "0.49" in cuft/min */
  26         DIVE_SAC,               /* int: in ml/min or something */
  27         DIVELIST_COLUMNS
  28 };
  29
  30
  31 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
  32 {
  33         GtkTreeIter iter;
  34         GValue value = {0, };
  35
  36         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
  37                 return;
  38
  39         gtk_tree_model_get_value(model, &iter, DIVE_INDEX, &value);
  40         selected_dive = g_value_get_int(&value);
  41         repaint_dive();
  42 }
  43
  44 static const char *weekday(int wday)
  45 {
  46         static const char wday_array[7][4] = {
  47                 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
  48         };
  49         return wday_array[wday];
  50 }
  51
  52 static const char *monthname(int mon)
  53 {
  54         static const char month_array[12][4] = {
  55                 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  56                 "Jul", "Aug", "Oct", "Sep", "Nov", "Dec",
  57         };
  58         return month_array[mon];
  59 }
  60
  61 static void date_data_func(GtkTreeViewColumn *col,
  62                            GtkCellRenderer *renderer,
  63                            GtkTreeModel *model,
  64                            GtkTreeIter *iter,
  65                            gpointer data)
  66 {
  67         int val;
  68         struct tm *tm;
  69         time_t when;
  70         char buffer[40];
  71
  72         gtk_tree_model_get(model, iter, DIVE_DATE, &val, -1);
  73
  74         /* 2038 problem */
  75         when = val;
  76
  77         tm = gmtime(&when);
  78         snprintf(buffer, sizeof(buffer),
  79                 "%s, %s %d, %d %02d:%02d",
  80                 weekday(tm->tm_wday),
  81                 monthname(tm->tm_mon),
  82                 tm->tm_mday, tm->tm_year + 1900,
  83                 tm->tm_hour, tm->tm_min);
  84         g_object_set(renderer, "text", buffer, NULL);
  85 }
  86
  87 static void depth_data_func(GtkTreeViewColumn *col,
  88                             GtkCellRenderer *renderer,
  89                             GtkTreeModel *model,
  90                             GtkTreeIter *iter,
  91                             gpointer data)
  92 {
  93         int depth, integer, frac, len;
  94         char buffer[40];
  95
  96         gtk_tree_model_get(model, iter, DIVE_DEPTH, &depth, -1);
  97
  98         switch (output_units.length) {
  99         case METERS:
 100                 /* To tenths of meters */
 101                 depth = (depth + 49) / 100;
 102                 integer = depth / 10;
 103                 frac = depth % 10;
 104                 if (integer < 20)
 105                         break;
 106                 frac = -1;
 107                 /* Rounding? */
 108                 break;
 109         case FEET:
 110                 integer = mm_to_feet(depth) + 0.5;
 111                 frac = -1;
 112                 break;
 113         default:
 114                 return;
 115         }
 116         len = snprintf(buffer, sizeof(buffer), "%d", integer);
 117         if (frac >= 0)
 118                 len += snprintf(buffer+len, sizeof(buffer)-len, ".%d", frac);
 119
 120         g_object_set(renderer, "text", buffer, NULL);
 121 }
 122
 123 static void get_duration(struct dive *dive, int *val, char **str)
 124 {
 125         unsigned int sec = dive->duration.seconds;
 126         char buffer[16];
 127
 128         *val = sec;
 129         snprintf(buffer, sizeof(buffer), "%d:%02d", sec / 60, sec % 60);
 130         *str = strdup(buffer);
 131 }
 132
 133 static void get_location(struct dive *dive, char **str)
 134 {
 135         char buffer[16];
 136
 137         snprintf(buffer, sizeof(buffer), "%s", dive->location);
 138         *str = strdup(buffer);
 139 }
 140
 141 static void get_temp(struct dive *dive, int *val, char **str)
 142 {
 143         int value = dive->watertemp.mkelvin;
 144         char buffer[80];
 145
 146         *val = value;
 147         *str = "";
 148         if (value) {
 149                 double deg;
 150                 switch (output_units.temperature) {
 151                 case CELSIUS:
 152                         deg = mkelvin_to_C(value);
 153                         break;
 154                 case FAHRENHEIT:
 155                         deg = mkelvin_to_F(value);
 156                         break;
 157                 default:
 158                         return;
 159                 }
 160                 snprintf(buffer, sizeof(buffer), "%.1f", deg);
 161                 *str = strdup(buffer);
 162         }
 163 }
 164
 165 static void get_nitrox(struct dive *dive, int *val, char **str)
 166 {
 167         int value = dive->cylinder[0].gasmix.o2.permille;
 168         char buffer[80];
 169
 170         *val = value;
 171         *str = "";
 172         if (value) {
 173                 snprintf(buffer, sizeof(buffer), "%.1f", value/10.0);
 174                 *str = strdup(buffer);
 175         }
 176 }
 177
 178 /*
 179  * Return air usage (in liters).
 180  */
 181 static double calculate_airuse(struct dive *dive)
 182 {
 183         double airuse = 0;
 184         int i;
 185
 186         for (i = 0; i < MAX_CYLINDERS; i++) {
 187                 cylinder_t *cyl = dive->cylinder + i;
 188                 int size = cyl->type.size.mliter;
 189                 double kilo_atm;
 190
 191                 if (!size)
 192                         continue;
 193
 194                 kilo_atm = (cyl->start.mbar - cyl->end.mbar) / 1013250.0;
 195
 196                 /* Liters of air at 1 atm == milliliters at 1k atm*/
 197                 airuse += kilo_atm * size;
 198         }
 199         return airuse;
 200 }
 201
 202 static void get_sac(struct dive *dive, int *val, char **str)
 203 {
 204         const double liters_per_cuft = 28.317;
 205         double airuse, pressure, sac;
 206         const char *fmt, *unit;
 207         char buffer[20];
 208
 209         *val = 0;
 210         *str = "";
 211         airuse = calculate_airuse(dive);
 212         if (!airuse)
 213                 return;
 214         if (!dive->duration.seconds)
 215                 return;
 216
 217         /* Mean pressure in atm: 1 atm per 10m */
 218         pressure = 1 + (dive->meandepth.mm / 10000.0);
 219         sac = airuse / pressure * 60 / dive->duration.seconds;
 220
 221         /* milliliters per minute.. */
 222         *val = sac * 1000;
 223
 224         switch (output_units.volume) {
 225         case LITER:
 226                 unit = "l";
 227                 fmt = "%4.0f %s";
 228                 break;
 229         case CUFT:
 230                 unit = "cuft";
 231                 fmt = "%4.2f %s";
 232                 airuse /= liters_per_cuft;
 233                 sac /= liters_per_cuft;
 234                 break;
 235         }
 236
 237         snprintf(buffer, sizeof(buffer), fmt, sac, unit);
 238         *str = strdup(buffer);
 239 }
 240
 241 static void fill_one_dive(struct dive *dive,
 242                           GtkTreeModel *model,
 243                           GtkTreeIter *iter)
 244 {
 245         int duration, temp, nitrox, sac;
 246         char *durationstr, *tempstr, *nitroxstr, *sacstr;
 247         char *location;
 248
 249         get_duration(dive, &duration, &durationstr);
 250         get_location(dive, &location);
 251         get_temp(dive, &temp, &tempstr);
 252         get_nitrox(dive, &nitrox, &nitroxstr);
 253         get_sac(dive, &sac, &sacstr);
 254
 255         /*
 256          * We only set the fields that changed: the strings.
 257          * The core data itself is unaffected by units
 258          */
 259         gtk_list_store_set(GTK_LIST_STORE(model), iter,
 260                 DIVE_DURATIONSTR, durationstr,
 261                 DIVE_LOCATION, location,
 262                 DIVE_TEMPSTR, tempstr,
 263                 DIVE_TEMP, temp,
 264                 DIVE_NITROXSTR, nitroxstr,
 265                 DIVE_NITROX, nitrox,
 266                 DIVE_SACSTR, sacstr,
 267                 DIVE_SAC, sac,
 268                 -1);
 269 }
 270
 271 static gboolean set_one_dive(GtkTreeModel *model,
 272                              GtkTreePath *path,
 273                              GtkTreeIter *iter,
 274                              gpointer data)
 275 {
 276         GValue value = {0, };
 277         struct dive *dive;
 278
 279         /* Get the dive number */
 280         gtk_tree_model_get_value(model, iter, DIVE_INDEX, &value);
 281         dive = get_dive(g_value_get_int(&value));
 282         if (!dive)
 283                 return TRUE;
 284         if (data && dive != data)
 285                 return FALSE;
 286
 287         fill_one_dive(dive, model, iter);
 288         return dive == data;
 289 }
 290
 291 void flush_divelist(struct DiveList *dive_list, struct dive *dive)
 292 {
 293         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 294
 295         gtk_tree_model_foreach(model, set_one_dive, dive);
 296 }
 297
 298 void update_dive_list_units(struct DiveList *dive_list)
 299 {
 300         const char *unit;
 301         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 302
 303         switch (output_units.length) {
 304         case METERS:
 305                 unit = "m";
 306                 break;
 307         case FEET:
 308                 unit = "ft";
 309                 break;
 310         }
 311         gtk_tree_view_column_set_title(dive_list->depth, unit);
 312
 313         gtk_tree_model_foreach(model, set_one_dive, NULL);
 314 }
 315
 316 static void fill_dive_list(struct DiveList *dive_list)
 317 {
 318         int i;
 319         GtkTreeIter iter;
 320         GtkListStore *store;
 321
 322         store = GTK_LIST_STORE(dive_list->model);
 323
 324         for (i = 0; i < dive_table.nr; i++) {
 325                 struct dive *dive = dive_table.dives[i];
 326
 327                 gtk_list_store_append(store, &iter);
 328                 gtk_list_store_set(store, &iter,
 329                         DIVE_INDEX, i,
 330                         DIVE_DATE, dive->when,
 331                         DIVE_DEPTH, dive->maxdepth,
 332                         DIVE_DURATIONSTR, "duration",
 333                         DIVE_DURATION, dive->duration.seconds,
 334                         DIVE_LOCATION, "location",
 335                         DIVE_TEMPSTR, "temp",
 336                         DIVE_TEMP, dive->watertemp.mkelvin,
 337                         DIVE_NITROXSTR, "21.0",
 338                         DIVE_NITROX, dive->cylinder[0].gasmix.o2,
 339                         DIVE_SACSTR, "sac",
 340                         DIVE_SAC, 0,
 341                         -1);
 342         }
 343
 344         update_dive_list_units(dive_list);
 345 }
 346
 347 void dive_list_update_dives(struct DiveList dive_list)
 348 {
 349         gtk_list_store_clear(GTK_LIST_STORE(dive_list.model));
 350         fill_dive_list(&dive_list);
 351         repaint_dive();
 352 }
 353
 354 struct DiveList dive_list_create(void)
 355 {
 356         struct DiveList    dive_list;
 357         GtkTreeSelection  *selection;
 358         GtkCellRenderer   *renderer;
 359         GtkTreeViewColumn *col;
 360
 361         dive_list.model = gtk_list_store_new(DIVELIST_COLUMNS,
 362                                 G_TYPE_INT,                     /* index */
 363                                 G_TYPE_INT,                     /* Date */
 364                                 G_TYPE_INT,                     /* Depth */
 365                                 G_TYPE_STRING, G_TYPE_INT,      /* Duration */
 366                                 G_TYPE_STRING,                  /* Location */
 367                                 G_TYPE_STRING, G_TYPE_INT,      /* Temperature */
 368                                 G_TYPE_STRING, G_TYPE_INT,      /* Nitrox */
 369                                 G_TYPE_STRING, G_TYPE_INT       /* SAC */
 370                                 );
 371         dive_list.tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(dive_list.model));
 372         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(dive_list.tree_view));
 373
 374         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 375         gtk_widget_set_size_request(dive_list.tree_view, 200, 100);
 376
 377         renderer = gtk_cell_renderer_text_new();
 378         dive_list.date = col = gtk_tree_view_column_new();
 379         gtk_tree_view_column_set_title(col, "Date");
 380         gtk_tree_view_column_set_sort_column_id(col, DIVE_DATE);
 381         gtk_tree_view_column_set_resizable (col, TRUE);
 382         gtk_tree_view_column_pack_start(col, renderer, TRUE);
 383         gtk_tree_view_column_set_cell_data_func(col, renderer, date_data_func, NULL, NULL);
 384         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 385
 386         renderer = gtk_cell_renderer_text_new();
 387         dive_list.depth = col = gtk_tree_view_column_new();
 388         gtk_tree_view_column_set_title(col, "ft");
 389         gtk_tree_view_column_set_sort_column_id(col, DIVE_DEPTH);
 390         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 391         gtk_tree_view_column_set_cell_data_func(col, renderer, depth_data_func, NULL, NULL);
 392         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 393         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 394         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 395
 396         renderer = gtk_cell_renderer_text_new();
 397         dive_list.duration = col = gtk_tree_view_column_new();
 398         gtk_tree_view_column_set_title(col, "min");
 399         gtk_tree_view_column_set_sort_column_id(col, DIVE_DURATION);
 400         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 401         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_DURATIONSTR);
 402         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 403         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 404         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 405
 406         renderer = gtk_cell_renderer_text_new();
 407         dive_list.location = col = gtk_tree_view_column_new();
 408         gtk_tree_view_column_set_title(col, "Location");
 409         gtk_tree_view_column_set_sort_column_id(col, DIVE_LOCATION);
 410         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 411         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_LOCATION);
 412         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 413
 414         renderer = gtk_cell_renderer_text_new();
 415         dive_list.temperature = col = gtk_tree_view_column_new();
 416         gtk_tree_view_column_set_title(col, "deg");
 417         gtk_tree_view_column_set_sort_column_id(col, DIVE_TEMP);
 418         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 419         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_TEMPSTR);
 420         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 421         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 422         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 423
 424         renderer = gtk_cell_renderer_text_new();
 425         dive_list.nitrox = col = gtk_tree_view_column_new();
 426         gtk_tree_view_column_set_title(col, "O2%");
 427         gtk_tree_view_column_set_sort_column_id(col, DIVE_NITROX);
 428         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 429         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_NITROXSTR);
 430         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 431         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 432         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 433
 434         renderer = gtk_cell_renderer_text_new();
 435         dive_list.sac = col = gtk_tree_view_column_new();
 436         gtk_tree_view_column_set_title(col, "SAC");
 437         gtk_tree_view_column_set_sort_column_id(col, DIVE_SAC);
 438         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 439         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_SACSTR);
 440         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 441         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 442         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 443
 444         fill_dive_list(&dive_list);
 445
 446         g_object_set(G_OBJECT(dive_list.tree_view), "headers-visible", TRUE,
 447                                           "search-column", 0,
 448                                           "rules-hint", TRUE,
 449                                           NULL);
 450
 451         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), dive_list.model);
 452
 453         dive_list.container_widget = gtk_scrolled_window_new(NULL, NULL);
 454         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dive_list.container_widget),
 455                                GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 456         gtk_container_add(GTK_CONTAINER(dive_list.container_widget), dive_list.tree_view);
 457
 458         return dive_list;
 459 }