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_DURATION,          /* int: in seconds */
  19         DIVE_LOCATION,          /* "2nd Cathedral, Lanai" */
  20         DIVE_TEMPERATURE,       /* int: in mkelvin */
  21         DIVE_NITROX,            /* int: in permille */
  22         DIVE_SAC,               /* int: in ml/min */
  23         DIVELIST_COLUMNS
  24 };
  25
  26
  27 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
  28 {
  29         GtkTreeIter iter;
  30         GValue value = {0, };
  31
  32         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
  33                 return;
  34
  35         gtk_tree_model_get_value(model, &iter, DIVE_INDEX, &value);
  36         selected_dive = g_value_get_int(&value);
  37         repaint_dive();
  38 }
  39
  40 static const char *weekday(int wday)
  41 {
  42         static const char wday_array[7][4] = {
  43                 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
  44         };
  45         return wday_array[wday];
  46 }
  47
  48 static const char *monthname(int mon)
  49 {
  50         static const char month_array[12][4] = {
  51                 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  52                 "Jul", "Aug", "Oct", "Sep", "Nov", "Dec",
  53         };
  54         return month_array[mon];
  55 }
  56
  57 static void date_data_func(GtkTreeViewColumn *col,
  58                            GtkCellRenderer *renderer,
  59                            GtkTreeModel *model,
  60                            GtkTreeIter *iter,
  61                            gpointer data)
  62 {
  63         int val;
  64         struct tm *tm;
  65         time_t when;
  66         char buffer[40];
  67
  68         gtk_tree_model_get(model, iter, DIVE_DATE, &val, -1);
  69
  70         /* 2038 problem */
  71         when = val;
  72
  73         tm = gmtime(&when);
  74         snprintf(buffer, sizeof(buffer),
  75                 "%s, %s %d, %d %02d:%02d",
  76                 weekday(tm->tm_wday),
  77                 monthname(tm->tm_mon),
  78                 tm->tm_mday, tm->tm_year + 1900,
  79                 tm->tm_hour, tm->tm_min);
  80         g_object_set(renderer, "text", buffer, NULL);
  81 }
  82
  83 static void depth_data_func(GtkTreeViewColumn *col,
  84                             GtkCellRenderer *renderer,
  85                             GtkTreeModel *model,
  86                             GtkTreeIter *iter,
  87                             gpointer data)
  88 {
  89         int depth, integer, frac, len;
  90         char buffer[40];
  91
  92         gtk_tree_model_get(model, iter, DIVE_DEPTH, &depth, -1);
  93
  94         switch (output_units.length) {
  95         case METERS:
  96                 /* To tenths of meters */
  97                 depth = (depth + 49) / 100;
  98                 integer = depth / 10;
  99                 frac = depth % 10;
 100                 if (integer < 20)
 101                         break;
 102                 frac = -1;
 103                 /* Rounding? */
 104                 break;
 105         case FEET:
 106                 integer = mm_to_feet(depth) + 0.5;
 107                 frac = -1;
 108                 break;
 109         default:
 110                 return;
 111         }
 112         len = snprintf(buffer, sizeof(buffer), "%d", integer);
 113         if (frac >= 0)
 114                 len += snprintf(buffer+len, sizeof(buffer)-len, ".%d", frac);
 115
 116         g_object_set(renderer, "text", buffer, NULL);
 117 }
 118
 119 static void duration_data_func(GtkTreeViewColumn *col,
 120                                GtkCellRenderer *renderer,
 121                                GtkTreeModel *model,
 122                                GtkTreeIter *iter,
 123                                gpointer data)
 124 {
 125         unsigned int sec;
 126         char buffer[16];
 127
 128         gtk_tree_model_get(model, iter, DIVE_DURATION, &sec, -1);
 129         snprintf(buffer, sizeof(buffer), "%d:%02d", sec / 60, sec % 60);
 130
 131         g_object_set(renderer, "text", buffer, NULL);
 132 }
 133
 134 static void temperature_data_func(GtkTreeViewColumn *col,
 135                                   GtkCellRenderer *renderer,
 136                                   GtkTreeModel *model,
 137                                   GtkTreeIter *iter,
 138                                   gpointer data)
 139 {
 140         int value;
 141         char buffer[80];
 142
 143         gtk_tree_model_get(model, iter, DIVE_TEMPERATURE, &value, -1);
 144
 145         *buffer = 0;
 146         if (value) {
 147                 double deg;
 148                 switch (output_units.temperature) {
 149                 case CELSIUS:
 150                         deg = mkelvin_to_C(value);
 151                         break;
 152                 case FAHRENHEIT:
 153                         deg = mkelvin_to_F(value);
 154                         break;
 155                 default:
 156                         return;
 157                 }
 158                 snprintf(buffer, sizeof(buffer), "%.1f", deg);
 159         }
 160
 161         g_object_set(renderer, "text", buffer, NULL);
 162 }
 163
 164 static void nitrox_data_func(GtkTreeViewColumn *col,
 165                              GtkCellRenderer *renderer,
 166                              GtkTreeModel *model,
 167                              GtkTreeIter *iter,
 168                              gpointer data)
 169 {
 170         int value;
 171         char buffer[80];
 172
 173         gtk_tree_model_get(model, iter, DIVE_NITROX, &value, -1);
 174
 175         if (value)
 176                 snprintf(buffer, sizeof(buffer), "%.1f", value/10.0);
 177         else
 178                 strcpy(buffer, "air");
 179
 180         g_object_set(renderer, "text", buffer, NULL);
 181 }
 182
 183 /* Render the SAC data (integer value of "ml / min") */
 184 static void sac_data_func(GtkTreeViewColumn *col,
 185                           GtkCellRenderer *renderer,
 186                           GtkTreeModel *model,
 187                           GtkTreeIter *iter,
 188                           gpointer data)
 189 {
 190         int value;
 191         const double liters_per_cuft = 28.317;
 192         const char *fmt;
 193         char buffer[16];
 194         double sac;
 195
 196         gtk_tree_model_get(model, iter, DIVE_SAC, &value, -1);
 197
 198         if (!value) {
 199                 g_object_set(renderer, "text", "", NULL);
 200                 return;
 201         }
 202
 203         sac = value / 1000.0;
 204         switch (output_units.volume) {
 205         case LITER:
 206                 fmt = "%4.0f";
 207                 break;
 208         case CUFT:
 209                 fmt = "%4.2f";
 210                 sac /= liters_per_cuft;
 211                 break;
 212         }
 213         snprintf(buffer, sizeof(buffer), fmt, sac);
 214
 215         g_object_set(renderer, "text", buffer, NULL);
 216 }
 217
 218 /*
 219  * Return air usage (in liters).
 220  */
 221 static double calculate_airuse(struct dive *dive)
 222 {
 223         double airuse = 0;
 224         int i;
 225
 226         for (i = 0; i < MAX_CYLINDERS; i++) {
 227                 cylinder_t *cyl = dive->cylinder + i;
 228                 int size = cyl->type.size.mliter;
 229                 double kilo_atm;
 230
 231                 if (!size)
 232                         continue;
 233
 234                 kilo_atm = (cyl->start.mbar - cyl->end.mbar) / 1013250.0;
 235
 236                 /* Liters of air at 1 atm == milliliters at 1k atm*/
 237                 airuse += kilo_atm * size;
 238         }
 239         return airuse;
 240 }
 241
 242 static void get_sac(struct dive *dive, int *val)
 243 {
 244         double airuse, pressure, sac;
 245
 246         *val = 0;
 247         airuse = calculate_airuse(dive);
 248         if (!airuse)
 249                 return;
 250         if (!dive->duration.seconds)
 251                 return;
 252
 253         /* Mean pressure in atm: 1 atm per 10m */
 254         pressure = 1 + (dive->meandepth.mm / 10000.0);
 255         sac = airuse / pressure * 60 / dive->duration.seconds;
 256
 257         /* milliliters per minute.. */
 258         *val = sac * 1000;
 259 }
 260
 261 static void get_location(struct dive *dive, char **str)
 262 {
 263         char buffer[16];
 264
 265         snprintf(buffer, sizeof(buffer), "%s", dive->location);
 266         *str = strdup(buffer);
 267 }
 268
 269 static void fill_one_dive(struct dive *dive,
 270                           GtkTreeModel *model,
 271                           GtkTreeIter *iter)
 272 {
 273         int sac;
 274         char *location;
 275
 276         get_location(dive, &location);
 277         get_sac(dive, &sac);
 278
 279         /*
 280          * We only set the fields that changed: the strings.
 281          * The core data itself is unaffected by units
 282          */
 283         gtk_list_store_set(GTK_LIST_STORE(model), iter,
 284                 DIVE_LOCATION, location,
 285                 DIVE_SAC, sac,
 286                 -1);
 287 }
 288
 289 static gboolean set_one_dive(GtkTreeModel *model,
 290                              GtkTreePath *path,
 291                              GtkTreeIter *iter,
 292                              gpointer data)
 293 {
 294         GValue value = {0, };
 295         struct dive *dive;
 296
 297         /* Get the dive number */
 298         gtk_tree_model_get_value(model, iter, DIVE_INDEX, &value);
 299         dive = get_dive(g_value_get_int(&value));
 300         if (!dive)
 301                 return TRUE;
 302         if (data && dive != data)
 303                 return FALSE;
 304
 305         fill_one_dive(dive, model, iter);
 306         return dive == data;
 307 }
 308
 309 void flush_divelist(struct DiveList *dive_list, struct dive *dive)
 310 {
 311         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 312
 313         gtk_tree_model_foreach(model, set_one_dive, dive);
 314 }
 315
 316 void update_dive_list_units(struct DiveList *dive_list)
 317 {
 318         const char *unit;
 319         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 320
 321         switch (output_units.length) {
 322         case METERS:
 323                 unit = "m";
 324                 break;
 325         case FEET:
 326                 unit = "ft";
 327                 break;
 328         }
 329         gtk_tree_view_column_set_title(dive_list->depth, unit);
 330
 331         gtk_tree_model_foreach(model, set_one_dive, NULL);
 332 }
 333
 334 static void fill_dive_list(struct DiveList *dive_list)
 335 {
 336         int i;
 337         GtkTreeIter iter;
 338         GtkListStore *store;
 339
 340         store = GTK_LIST_STORE(dive_list->model);
 341
 342         for (i = 0; i < dive_table.nr; i++) {
 343                 struct dive *dive = dive_table.dives[i];
 344
 345                 gtk_list_store_append(store, &iter);
 346                 gtk_list_store_set(store, &iter,
 347                         DIVE_INDEX, i,
 348                         DIVE_DATE, dive->when,
 349                         DIVE_DEPTH, dive->maxdepth,
 350                         DIVE_DURATION, dive->duration.seconds,
 351                         DIVE_LOCATION, "location",
 352                         DIVE_TEMPERATURE, dive->watertemp.mkelvin,
 353                         DIVE_NITROX, dive->cylinder[0].gasmix.o2,
 354                         DIVE_SAC, 0,
 355                         -1);
 356         }
 357
 358         update_dive_list_units(dive_list);
 359 }
 360
 361 void dive_list_update_dives(struct DiveList dive_list)
 362 {
 363         gtk_list_store_clear(GTK_LIST_STORE(dive_list.model));
 364         fill_dive_list(&dive_list);
 365         repaint_dive();
 366 }
 367
 368 struct DiveList dive_list_create(void)
 369 {
 370         struct DiveList    dive_list;
 371         GtkTreeSelection  *selection;
 372         GtkCellRenderer   *renderer;
 373         GtkTreeViewColumn *col;
 374
 375         dive_list.model = gtk_list_store_new(DIVELIST_COLUMNS,
 376                                 G_TYPE_INT,                     /* index */
 377                                 G_TYPE_INT,                     /* Date */
 378                                 G_TYPE_INT,                     /* Depth */
 379                                 G_TYPE_INT,                     /* Duration */
 380                                 G_TYPE_STRING,                  /* Location */
 381                                 G_TYPE_INT,                     /* Temperature */
 382                                 G_TYPE_INT,                     /* Nitrox */
 383                                 G_TYPE_INT                      /* SAC */
 384                                 );
 385         dive_list.tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(dive_list.model));
 386         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(dive_list.tree_view));
 387
 388         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 389         gtk_widget_set_size_request(dive_list.tree_view, 200, 100);
 390
 391         renderer = gtk_cell_renderer_text_new();
 392         dive_list.date = col = gtk_tree_view_column_new();
 393         gtk_tree_view_column_set_title(col, "Date");
 394         gtk_tree_view_column_set_sort_column_id(col, DIVE_DATE);
 395         gtk_tree_view_column_set_resizable (col, TRUE);
 396         gtk_tree_view_column_pack_start(col, renderer, TRUE);
 397         gtk_tree_view_column_set_cell_data_func(col, renderer, date_data_func, NULL, NULL);
 398         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 399
 400         renderer = gtk_cell_renderer_text_new();
 401         dive_list.depth = col = gtk_tree_view_column_new();
 402         gtk_tree_view_column_set_title(col, "ft");
 403         gtk_tree_view_column_set_sort_column_id(col, DIVE_DEPTH);
 404         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 405         gtk_tree_view_column_set_cell_data_func(col, renderer, depth_data_func, NULL, NULL);
 406         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 407         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 408         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 409
 410         renderer = gtk_cell_renderer_text_new();
 411         dive_list.duration = col = gtk_tree_view_column_new();
 412         gtk_tree_view_column_set_title(col, "min");
 413         gtk_tree_view_column_set_sort_column_id(col, DIVE_DURATION);
 414         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 415         gtk_tree_view_column_set_cell_data_func(col, renderer, duration_data_func, NULL, NULL);
 416         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 417         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 418         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 419
 420         renderer = gtk_cell_renderer_text_new();
 421         dive_list.location = col = gtk_tree_view_column_new();
 422         gtk_tree_view_column_set_title(col, "Location");
 423         gtk_tree_view_column_set_sort_column_id(col, DIVE_LOCATION);
 424         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 425         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_LOCATION);
 426         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 427
 428         renderer = gtk_cell_renderer_text_new();
 429         dive_list.temperature = col = gtk_tree_view_column_new();
 430         gtk_tree_view_column_set_title(col, "deg");
 431         gtk_tree_view_column_set_sort_column_id(col, DIVE_TEMPERATURE);
 432         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 433         gtk_tree_view_column_set_cell_data_func(col, renderer, temperature_data_func, NULL, NULL);
 434         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 435         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 436         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 437
 438         renderer = gtk_cell_renderer_text_new();
 439         dive_list.nitrox = col = gtk_tree_view_column_new();
 440         gtk_tree_view_column_set_title(col, "O2%");
 441         gtk_tree_view_column_set_sort_column_id(col, DIVE_NITROX);
 442         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 443         gtk_tree_view_column_set_cell_data_func(col, renderer, nitrox_data_func, NULL, NULL);
 444         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 445         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 446         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 447
 448         renderer = gtk_cell_renderer_text_new();
 449         dive_list.sac = col = gtk_tree_view_column_new();
 450         gtk_tree_view_column_set_title(col, "SAC");
 451         gtk_tree_view_column_set_sort_column_id(col, DIVE_SAC);
 452         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 453         gtk_tree_view_column_set_cell_data_func(col, renderer, sac_data_func, NULL, NULL);
 454         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 455         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 456         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 457
 458         fill_dive_list(&dive_list);
 459
 460         g_object_set(G_OBJECT(dive_list.tree_view), "headers-visible", TRUE,
 461                                           "search-column", 0,
 462                                           "rules-hint", TRUE,
 463                                           NULL);
 464
 465         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), dive_list.model);
 466
 467         dive_list.container_widget = gtk_scrolled_window_new(NULL, NULL);
 468         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dive_list.container_widget),
 469                                GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 470         gtk_container_add(GTK_CONTAINER(dive_list.container_widget), dive_list.tree_view);
 471
 472         return dive_list;
 473 }