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_DATESTR,           /* "Thu Jun 17th, 2011" or whatever */
  17         DIVE_DATE,              /* time_t: dive->when */
  18         DIVE_DEPTHSTR,          /* "67" in ft or whatever */
  19         DIVE_DEPTH,             /* int: dive->maxdepth in mm */
  20         DIVE_DURATIONSTR,       /* "47" in minutes */
  21         DIVE_DURATION,          /* int: in seconds */
  22         DIVE_LOCATION,          /* "47" in minutes */
  23         DIVE_TEMPSTR,           /* "78" in fahrenheit or whatever */
  24         DIVE_TEMP,              /* int: in mkelvin */
  25         DIVE_NITROXSTR,         /* "32.5" in percent */
  26         DIVE_NITROX,            /* int: in permille */
  27         DIVE_SACSTR,            /* "0.49" in cuft/min */
  28         DIVE_SAC,               /* int: in ml/min or something */
  29         DIVELIST_COLUMNS
  30 };
  31
  32
  33 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
  34 {
  35         GtkTreeIter iter;
  36         GValue value = {0, };
  37
  38         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
  39                 return;
  40
  41         gtk_tree_model_get_value(model, &iter, DIVE_INDEX, &value);
  42         selected_dive = g_value_get_int(&value);
  43         repaint_dive();
  44 }
  45
  46 static const char *weekday(int wday)
  47 {
  48         static const char wday_array[7][4] = {
  49                 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
  50         };
  51         return wday_array[wday];
  52 }
  53
  54 static const char *monthname(int mon)
  55 {
  56         static const char month_array[12][4] = {
  57                 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  58                 "Jul", "Aug", "Oct", "Sep", "Nov", "Dec",
  59         };
  60         return month_array[mon];
  61 }
  62
  63 static void get_date(struct dive *dive, int *val, char **str)
  64 {
  65         struct tm *tm;
  66         time_t when = dive->when;
  67         char buffer[40];
  68
  69         /* 2038 problem */
  70         *val = when;
  71
  72         tm = gmtime(&dive->when);
  73         snprintf(buffer, sizeof(buffer),
  74                 "%s, %s %d, %d %02d:%02d",
  75                 weekday(tm->tm_wday),
  76                 monthname(tm->tm_mon),
  77                 tm->tm_mday, tm->tm_year + 1900,
  78                 tm->tm_hour, tm->tm_min);
  79         *str = strdup(buffer);
  80 }
  81
  82 static void get_depth(struct dive *dive, int *val, char **str)
  83 {
  84         int len;
  85         int depth = dive->maxdepth.mm;
  86         int integer, frac = -1;
  87         char buffer[10];
  88
  89         *val = depth;
  90         *str = "";
  91         switch (output_units.length) {
  92         case METERS:
  93                 /* To tenths of meters */
  94                 depth = (depth + 49) / 100;
  95                 integer = depth / 10;
  96                 frac = depth % 10;
  97                 if (integer < 20)
  98                         break;
  99                 frac = -1;
 100                 /* Rounding? */
 101                 break;
 102         case FEET:
 103                 integer = to_feet(dive->maxdepth);
 104                 frac = -1;
 105                 break;
 106         default:
 107                 return;
 108         }
 109         len = snprintf(buffer, sizeof(buffer),
 110                        "%d", integer);
 111         if (frac >= 0)
 112                 len += snprintf(buffer+len, sizeof(buffer)-len,
 113                         ".%d", frac);
 114         *str = strdup(buffer);
 115 }
 116
 117 static void get_duration(struct dive *dive, int *val, char **str)
 118 {
 119         unsigned int sec = dive->duration.seconds;
 120         char buffer[16];
 121
 122         *val = sec;
 123         snprintf(buffer, sizeof(buffer), "%d:%02d", sec / 60, sec % 60);
 124         *str = strdup(buffer);
 125 }
 126
 127 static void get_location(struct dive *dive, char **str)
 128 {
 129         char buffer[16];
 130
 131         snprintf(buffer, sizeof(buffer), "%s", dive->location);
 132         *str = strdup(buffer);
 133 }
 134
 135 static void get_temp(struct dive *dive, int *val, char **str)
 136 {
 137         int value = dive->watertemp.mkelvin;
 138         char buffer[80];
 139
 140         *val = value;
 141         *str = "";
 142         if (value) {
 143                 double deg;
 144                 switch (output_units.temperature) {
 145                 case CELSIUS:
 146                         deg = mkelvin_to_C(value);
 147                         break;
 148                 case FAHRENHEIT:
 149                         deg = mkelvin_to_F(value);
 150                         break;
 151                 default:
 152                         return;
 153                 }
 154                 snprintf(buffer, sizeof(buffer), "%.1f", deg);
 155                 *str = strdup(buffer);
 156         }
 157 }
 158
 159 static void get_nitrox(struct dive *dive, int *val, char **str)
 160 {
 161         int value = dive->cylinder[0].gasmix.o2.permille;
 162         char buffer[80];
 163
 164         *val = value;
 165         *str = "";
 166         if (value) {
 167                 snprintf(buffer, sizeof(buffer), "%.1f", value/10.0);
 168                 *str = strdup(buffer);
 169         }
 170 }
 171
 172 /*
 173  * Return air usage (in liters).
 174  */
 175 static double calculate_airuse(struct dive *dive)
 176 {
 177         double airuse = 0;
 178         int i;
 179
 180         for (i = 0; i < MAX_CYLINDERS; i++) {
 181                 cylinder_t *cyl = dive->cylinder + i;
 182                 int size = cyl->type.size.mliter;
 183                 double kilo_atm;
 184
 185                 if (!size)
 186                         continue;
 187
 188                 kilo_atm = (cyl->start.mbar - cyl->end.mbar) / 1013250.0;
 189
 190                 /* Liters of air at 1 atm == milliliters at 1k atm*/
 191                 airuse += kilo_atm * size;
 192         }
 193         return airuse;
 194 }
 195
 196 static void get_sac(struct dive *dive, int *val, char **str)
 197 {
 198         const double liters_per_cuft = 28.317;
 199         double airuse, pressure, sac;
 200         const char *fmt, *unit;
 201         char buffer[20];
 202
 203         *val = 0;
 204         *str = "";
 205         airuse = calculate_airuse(dive);
 206         if (!airuse)
 207                 return;
 208         if (!dive->duration.seconds)
 209                 return;
 210
 211         /* Mean pressure in atm: 1 atm per 10m */
 212         pressure = 1 + (dive->meandepth.mm / 10000.0);
 213         sac = airuse / pressure * 60 / dive->duration.seconds;
 214
 215         /* milliliters per minute.. */
 216         *val = sac * 1000;
 217
 218         switch (output_units.volume) {
 219         case LITER:
 220                 unit = "l";
 221                 fmt = "%4.0f %s";
 222                 break;
 223         case CUFT:
 224                 unit = "cuft";
 225                 fmt = "%4.2f %s";
 226                 airuse /= liters_per_cuft;
 227                 sac /= liters_per_cuft;
 228                 break;
 229         }
 230
 231         snprintf(buffer, sizeof(buffer), fmt, sac, unit);
 232         *str = strdup(buffer);
 233 }
 234
 235 static void fill_one_dive(struct dive *dive,
 236                           GtkTreeModel *model,
 237                           GtkTreeIter *iter)
 238 {
 239         int date, depth, duration, temp, nitrox, sac;
 240         char *datestr, *depthstr, *durationstr, *tempstr, *nitroxstr, *sacstr;
 241         char *location;
 242
 243         get_date(dive, &date, &datestr);
 244         get_depth(dive, &depth, &depthstr);
 245         get_duration(dive, &duration, &durationstr);
 246         get_location(dive, &location);
 247         get_temp(dive, &temp, &tempstr);
 248         get_nitrox(dive, &nitrox, &nitroxstr);
 249         get_sac(dive, &sac, &sacstr);
 250
 251         /*
 252          * We only set the fields that changed: the strings.
 253          * The core data itself is unaffected by units
 254          */
 255         gtk_list_store_set(GTK_LIST_STORE(model), iter,
 256                 DIVE_DATESTR, datestr,
 257                 DIVE_DEPTHSTR, depthstr,
 258                 DIVE_DURATIONSTR, durationstr,
 259                 DIVE_LOCATION, location,
 260                 DIVE_TEMPSTR, tempstr,
 261                 DIVE_TEMP, temp,
 262                 DIVE_NITROXSTR, nitroxstr,
 263                 DIVE_NITROX, nitrox,
 264                 DIVE_SACSTR, sacstr,
 265                 DIVE_SAC, sac,
 266                 -1);
 267 }
 268
 269 static gboolean set_one_dive(GtkTreeModel *model,
 270                              GtkTreePath *path,
 271                              GtkTreeIter *iter,
 272                              gpointer data)
 273 {
 274         GValue value = {0, };
 275         struct dive *dive;
 276
 277         /* Get the dive number */
 278         gtk_tree_model_get_value(model, iter, DIVE_INDEX, &value);
 279         dive = get_dive(g_value_get_int(&value));
 280         if (!dive)
 281                 return TRUE;
 282         if (data && dive != data)
 283                 return FALSE;
 284
 285         fill_one_dive(dive, model, iter);
 286         return dive == data;
 287 }
 288
 289 void flush_divelist(struct DiveList *dive_list, struct dive *dive)
 290 {
 291         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 292
 293         gtk_tree_model_foreach(model, set_one_dive, dive);
 294 }
 295
 296 void update_dive_list_units(struct DiveList *dive_list)
 297 {
 298         const char *unit;
 299         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 300
 301         switch (output_units.length) {
 302         case METERS:
 303                 unit = "m";
 304                 break;
 305         case FEET:
 306                 unit = "ft";
 307                 break;
 308         }
 309         gtk_tree_view_column_set_title(dive_list->depth, unit);
 310
 311         gtk_tree_model_foreach(model, set_one_dive, NULL);
 312 }
 313
 314 static void fill_dive_list(struct DiveList *dive_list)
 315 {
 316         int i;
 317         GtkTreeIter iter;
 318         GtkListStore *store;
 319
 320         store = GTK_LIST_STORE(dive_list->model);
 321
 322         for (i = 0; i < dive_table.nr; i++) {
 323                 struct dive *dive = dive_table.dives[i];
 324
 325                 gtk_list_store_append(store, &iter);
 326                 gtk_list_store_set(store, &iter,
 327                         DIVE_INDEX, i,
 328                         DIVE_DATESTR, "date",
 329                         DIVE_DATE, dive->when,
 330                         DIVE_DEPTHSTR, "depth",
 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_STRING, G_TYPE_INT,      /* Date */
 364                                 G_TYPE_STRING, 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_add_attribute(col, renderer, "text", DIVE_DATESTR);
 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_add_attribute(col, renderer, "text", DIVE_DEPTHSTR);
 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, "EAD");
 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 }