equipment.c

   1 /* equipment.c */
   2 /* creates the UI for the equipment page -
   3  * controlled through the following interfaces:
   4  *
   5  * void show_dive_equipment(struct dive *dive)
   6  *
   7  * called from gtk-ui:
   8  * GtkWidget *equipment_widget(void)
   9  */
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <stdarg.h>
  14 #include <time.h>
  15
  16 #include "dive.h"
  17 #include "display.h"
  18 #include "display-gtk.h"
  19 #include "divelist.h"
  20
  21 static GtkListStore *cylinder_model;
  22
  23 enum {
  24         CYL_DESC,
  25         CYL_SIZE,
  26         CYL_WORKP,
  27         CYL_STARTP,
  28         CYL_ENDP,
  29         CYL_O2,
  30         CYL_HE,
  31         CYL_COLUMNS
  32 };
  33
  34 static struct {
  35         int max_index;
  36         GtkListStore *model;
  37         GtkWidget *edit, *add, *del;
  38 } cylinder_list;
  39
  40 struct cylinder_widget {
  41         int index, changed;
  42         const char *name;
  43         GtkWidget *hbox;
  44         GtkComboBox *description;
  45         GtkSpinButton *size, *pressure;
  46         GtkWidget *start, *end, *pressure_button;
  47         GtkWidget *o2, *he, *gasmix_button;
  48 };
  49
  50 /* we want bar - so let's not use our unit functions */
  51 static int convert_pressure(int mbar, double *p)
  52 {
  53         int decimals = 1;
  54         double pressure;
  55
  56         if (output_units.pressure == PSI) {
  57                 pressure = mbar_to_PSI(mbar);
  58                 decimals = 0;
  59         } else {
  60                 pressure = mbar / 1000.0;
  61         }
  62
  63         *p = pressure;
  64         return decimals;
  65 }
  66
  67 static void convert_volume_pressure(int ml, int mbar, double *v, double *p)
  68 {
  69         double volume, pressure;
  70
  71         volume = ml / 1000.0;
  72         if (mbar) {
  73                 if (output_units.volume == CUFT) {
  74                         volume = ml_to_cuft(ml);
  75                         volume *= bar_to_atm(mbar / 1000.0);
  76                 }
  77
  78                 if (output_units.pressure == PSI) {
  79                         pressure = mbar_to_PSI(mbar);
  80                 } else
  81                         pressure = mbar / 1000.0;
  82         }
  83         *v = volume;
  84         *p = pressure;
  85 }
  86
  87 static void set_cylinder_type_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar)
  88 {
  89         double volume, pressure;
  90
  91         convert_volume_pressure(ml, mbar, &volume, &pressure);
  92         gtk_spin_button_set_value(cylinder->size, volume);
  93         gtk_spin_button_set_value(cylinder->pressure, pressure);
  94 }
  95
  96 static void set_cylinder_pressure_spinbuttons(struct cylinder_widget *cylinder, cylinder_t *cyl)
  97 {
  98         int set;
  99         unsigned int start, end;
 100         double pressure;
 101
 102         start = cyl->start.mbar;
 103         end = cyl->end.mbar;
 104         set = start || end;
 105         if (!set) {
 106                 start = cyl->sample_start.mbar;
 107                 end = cyl->sample_end.mbar;
 108         }
 109         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->pressure_button), set);
 110         gtk_widget_set_sensitive(cylinder->start, set);
 111         gtk_widget_set_sensitive(cylinder->end, set);
 112
 113         convert_pressure(start, &pressure);
 114         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->start), pressure);
 115         convert_pressure(end, &pressure);
 116         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->end), pressure);
 117 }
 118
 119 /*
 120  * The gtk_tree_model_foreach() interface is bad. It could have
 121  * returned whether the callback ever returned true
 122  */
 123 static GtkTreeIter *found_match = NULL;
 124 static GtkTreeIter match_iter;
 125
 126 static gboolean match_cylinder(GtkTreeModel *model,
 127                                 GtkTreePath *path,
 128                                 GtkTreeIter *iter,
 129                                 gpointer data)
 130 {
 131         int match;
 132         gchar *name;
 133         const char *desc = data;
 134
 135         gtk_tree_model_get(model, iter, 0, &name, -1);
 136         match = !strcmp(desc, name);
 137         g_free(name);
 138         if (match) {
 139                 match_iter = *iter;
 140                 found_match = &match_iter;
 141         }
 142         return match;
 143 }
 144
 145 static int get_active_cylinder(GtkComboBox *combo_box, GtkTreeIter *iter)
 146 {
 147         char *desc;
 148
 149         if (gtk_combo_box_get_active_iter(combo_box, iter))
 150                 return TRUE;
 151
 152         desc = gtk_combo_box_get_active_text(combo_box);
 153
 154         found_match = NULL;
 155         gtk_tree_model_foreach(GTK_TREE_MODEL(cylinder_model), match_cylinder, (void *)desc);
 156
 157         g_free(desc);
 158         if (!found_match)
 159                 return FALSE;
 160
 161         *iter = *found_match;
 162         gtk_combo_box_set_active_iter(combo_box, iter);
 163         return TRUE;
 164 }
 165
 166 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
 167 {
 168         GtkTreeIter iter;
 169         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 170         int ml, mbar;
 171         struct cylinder_widget *cylinder = data;
 172         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 173
 174         /* Did the user set it to some non-standard value? */
 175         if (!get_active_cylinder(combo_box, &iter)) {
 176                 cylinder->changed = 1;
 177                 return;
 178         }
 179
 180         /*
 181          * We get "change" signal callbacks just because we set
 182          * the description by hand. Whatever. So ignore them if
 183          * they are no-ops.
 184          */
 185         if (!cylinder->changed && cyl->type.description) {
 186                 int same;
 187                 char *desc = gtk_combo_box_get_active_text(combo_box);
 188
 189                 same = !strcmp(desc, cyl->type.description);
 190                 g_free(desc);
 191                 if (same)
 192                         return;
 193         }
 194         cylinder->changed = 1;
 195
 196         gtk_tree_model_get(model, &iter,
 197                 CYL_SIZE, &ml,
 198                 CYL_WORKP, &mbar,
 199                 -1);
 200
 201         set_cylinder_type_spinbuttons(cylinder, ml, mbar);
 202 }
 203
 204 static GtkTreeIter *add_cylinder_type(const char *desc, int ml, int mbar, GtkTreeIter *iter)
 205 {
 206         GtkTreeModel *model;
 207
 208         /* Don't even bother adding stuff without a size */
 209         if (!ml)
 210                 return NULL;
 211
 212         found_match = NULL;
 213         model = GTK_TREE_MODEL(cylinder_model);
 214         gtk_tree_model_foreach(model, match_cylinder, (void *)desc);
 215
 216         if (!found_match) {
 217                 GtkListStore *store = GTK_LIST_STORE(model);
 218
 219                 gtk_list_store_append(store, iter);
 220                 gtk_list_store_set(store, iter,
 221                         0, desc,
 222                         1, ml,
 223                         2, mbar,
 224                         -1);
 225                 return iter;
 226         }
 227         return found_match;
 228 }
 229
 230 /*
 231  * When adding a dive, we'll add all the pre-existing cylinder
 232  * information from that dive to our cylinder model.
 233  */
 234 void add_cylinder_description(cylinder_type_t *type)
 235 {
 236         GtkTreeIter iter;
 237         const char *desc;
 238         unsigned int size, workp;
 239
 240         desc = type->description;
 241         if (!desc)
 242                 return;
 243         size = type->size.mliter;
 244         workp = type->workingpressure.mbar;
 245         add_cylinder_type(desc, size, workp, &iter);
 246 }
 247
 248 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 249 {
 250         GtkTreeIter iter, *match;
 251
 252         cylinder->name = desc;
 253         match = add_cylinder_type(desc, ml, mbar, &iter);
 254         if (match)
 255                 gtk_combo_box_set_active_iter(cylinder->description, match);
 256 }
 257
 258 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 259 {
 260         const char *desc;
 261         int ml, mbar;
 262         int gasmix;
 263         double o2, he;
 264
 265         /* Don't show uninitialized cylinder widgets */
 266         if (!cylinder->description)
 267                 return;
 268
 269         desc = cyl->type.description;
 270         if (!desc)
 271                 desc = "";
 272         ml = cyl->type.size.mliter;
 273         mbar = cyl->type.workingpressure.mbar;
 274         add_cylinder(cylinder, desc, ml, mbar);
 275
 276         set_cylinder_type_spinbuttons(cylinder,
 277                 cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 278         set_cylinder_pressure_spinbuttons(cylinder, cyl);
 279
 280         gasmix = cyl->gasmix.o2.permille || cyl->gasmix.he.permille;
 281         gtk_widget_set_sensitive(cylinder->o2, gasmix);
 282         gtk_widget_set_sensitive(cylinder->he, gasmix);
 283         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), gasmix);
 284
 285         o2 = cyl->gasmix.o2.permille / 10.0;
 286         he = cyl->gasmix.he.permille / 10.0;
 287         if (!o2)
 288                 o2 = 21.0;
 289         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 290         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->he), he);
 291 }
 292
 293 int cylinder_none(cylinder_t *cyl)
 294 {
 295         return  !cyl->type.size.mliter &&
 296                 !cyl->type.workingpressure.mbar &&
 297                 !cyl->type.description &&
 298                 !cyl->gasmix.o2.permille &&
 299                 !cyl->gasmix.he.permille &&
 300                 !cyl->sample_start.mbar &&
 301                 !cyl->sample_end.mbar &&
 302                 !cyl->start.mbar &&
 303                 !cyl->end.mbar;
 304 }
 305
 306 static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 307 {
 308         unsigned int start, end;
 309
 310         start = cyl->start.mbar ? : cyl->sample_start.mbar;
 311         end = cyl->end.mbar ? : cyl->sample_end.mbar;
 312         gtk_list_store_set(model, iter,
 313                 CYL_DESC, cyl->type.description ? : "",
 314                 CYL_SIZE, cyl->type.size.mliter,
 315                 CYL_WORKP, cyl->type.workingpressure.mbar,
 316                 CYL_STARTP, start,
 317                 CYL_ENDP, end,
 318                 CYL_O2, cyl->gasmix.o2.permille,
 319                 CYL_HE, cyl->gasmix.he.permille,
 320                 -1);
 321 }
 322
 323 void show_dive_equipment(struct dive *dive)
 324 {
 325         int i, max;
 326         GtkTreeIter iter;
 327         GtkListStore *model;
 328
 329         model = cylinder_list.model;
 330         gtk_list_store_clear(model);
 331         max = MAX_CYLINDERS;
 332         do {
 333                 cylinder_t *cyl = &dive->cylinder[max-1];
 334
 335                 if (!cylinder_none(cyl))
 336                         break;
 337         } while (--max);
 338
 339         cylinder_list.max_index = max;
 340
 341         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 342         gtk_widget_set_sensitive(cylinder_list.del, 0);
 343         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 344
 345         for (i = 0; i < max; i++) {
 346                 cylinder_t *cyl = dive->cylinder+i;
 347
 348                 gtk_list_store_append(model, &iter);
 349                 set_one_cylinder(i, cyl, model, &iter);
 350         }
 351 }
 352
 353 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 354 {
 355         GtkWidget *frame, *hbox, *button;
 356
 357         frame = gtk_frame_new(name);
 358         gtk_box_pack_start(GTK_BOX(vbox), frame, TRUE, FALSE, 0);
 359
 360         hbox = gtk_hbox_new(FALSE, 3);
 361         gtk_container_add(GTK_CONTAINER(frame), hbox);
 362
 363         button = gtk_spin_button_new_with_range(min, max, incr);
 364         gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, FALSE, 0);
 365
 366         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 367
 368         return button;
 369 }
 370
 371 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc,
 372                 double volume, double pressure, double start, double end, int o2, int he)
 373 {
 374         int mbar, ml;
 375
 376         if (output_units.pressure == PSI) {
 377                 pressure = psi_to_bar(pressure);
 378                 start = psi_to_bar(start);
 379                 end = psi_to_bar(end);
 380         }
 381
 382         if (pressure && output_units.volume == CUFT) {
 383                 volume = cuft_to_l(volume);
 384                 volume /= bar_to_atm(pressure);
 385         }
 386
 387         ml = volume * 1000 + 0.5;
 388         mbar = pressure * 1000 + 0.5;
 389
 390         /* Ignore obviously crazy He values */
 391         if (o2 + he > 1000)
 392                 he = 0;
 393
 394         /* We have a rule that normal air is all zeroes */
 395         if (!he && o2 > 208 && o2 < 211)
 396                 o2 = 0;
 397
 398         cyl->type.description = desc;
 399         cyl->type.size.mliter = ml;
 400         cyl->type.workingpressure.mbar = mbar;
 401         cyl->start.mbar = start * 1000 + 0.5;
 402         cyl->end.mbar = end * 1000 + 0.5;
 403         cyl->gasmix.o2.permille = o2;
 404         cyl->gasmix.he.permille = he;
 405
 406         /*
 407          * Also, insert it into the model if it doesn't already exist
 408          */
 409         add_cylinder(cylinder, desc, ml, mbar);
 410 }
 411
 412 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 413 {
 414         const gchar *desc;
 415         GtkComboBox *box;
 416         double volume, pressure, start, end;
 417         int o2, he;
 418
 419         /* Ignore uninitialized cylinder widgets */
 420         box = cylinder->description;
 421         if (!box)
 422                 return;
 423
 424         desc = gtk_combo_box_get_active_text(box);
 425         volume = gtk_spin_button_get_value(cylinder->size);
 426         pressure = gtk_spin_button_get_value(cylinder->pressure);
 427         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->pressure_button))) {
 428                 start = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->start));
 429                 end = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->end));
 430         } else {
 431                 start = end = 0;
 432         }
 433         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button))) {
 434                 o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 435                 he = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->he))*10 + 0.5;
 436         } else {
 437                 o2 = 0;
 438                 he = 0;
 439         }
 440         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, start, end, o2, he);
 441 }
 442
 443 /*
 444  * We hardcode the most common standard cylinders,
 445  * we should pick up any other names from the dive
 446  * logs directly.
 447  */
 448 static struct tank_info {
 449         const char *name;
 450         int cuft, ml, psi, bar;
 451 } tank_info[100] = {
 452         /* Need an empty entry for the no-cylinder case */
 453         { "", },
 454
 455         /* Size-only metric cylinders */
 456         { "10.0 l", .ml = 10000 },
 457         { "11.1 l", .ml = 11100 },
 458
 459         /* Most common AL cylinders */
 460         { "AL50",  .cuft =  50, .psi = 3000 },
 461         { "AL63",  .cuft =  63, .psi = 3000 },
 462         { "AL72",  .cuft =  72, .psi = 3000 },
 463         { "AL80",  .cuft =  80, .psi = 3000 },
 464         { "AL100", .cuft = 100, .psi = 3300 },
 465
 466         /* Somewhat common LP steel cylinders */
 467         { "LP85",  .cuft =  85, 2640 },
 468         { "LP95",  .cuft =  95, 2640 },
 469         { "LP108", .cuft = 108, 2640 },
 470         { "LP121", .cuft = 121, 2640 },
 471
 472         /* Somewhat common HP steel cylinders */
 473         { "HP65",  .cuft =  65, .psi = 3442 },
 474         { "HP80",  .cuft =  80, .psi = 3442 },
 475         { "HP100", .cuft = 100, .psi = 3442 },
 476         { "HP119", .cuft = 119, .psi = 3442 },
 477         { "HP130", .cuft = 130, .psi = 3442 },
 478
 479         /* Common European steel cylinders */
 480         { "10L 300 bar",  .ml = 10000, .bar = 300 },
 481         { "12L 200 bar",  .ml = 12000, .bar = 200 },
 482         { "12L 232 bar",  .ml = 12000, .bar = 232 },
 483         { "12L 300 bar",  .ml = 12000, .bar = 300 },
 484         { "15L 200 bar",  .ml = 15000, .bar = 200 },
 485         { "15L 232 bar",  .ml = 15000, .bar = 232 },
 486         { "D7 300 bar",   .ml = 14000, .bar = 300 },
 487         { "D8.5 232 bar", .ml = 17000, .bar = 232 },
 488         { "D12 232 bar",  .ml = 24000, .bar = 232 },
 489
 490         /* We'll fill in more from the dive log dynamically */
 491         { NULL, }
 492 };
 493
 494 static void fill_tank_list(GtkListStore *store)
 495 {
 496         GtkTreeIter iter;
 497         struct tank_info *info = tank_info;
 498
 499         while (info->name) {
 500                 int ml = info->ml;
 501                 int cuft = info->cuft;
 502                 int psi = info->psi;
 503                 int mbar;
 504                 double bar = info->bar;
 505
 506                 /* Is it in cuft and psi? */
 507                 if (psi) {
 508                         bar = psi_to_bar(psi);
 509
 510                         if (cuft) {
 511                                 double airvolume = cuft_to_l(cuft) * 1000.0;
 512                                 double atm = bar_to_atm(bar);
 513
 514                                 ml = airvolume / atm + 0.5;
 515                         }
 516                 }
 517
 518                 mbar = bar * 1000 + 0.5;
 519
 520                 gtk_list_store_append(store, &iter);
 521                 gtk_list_store_set(store, &iter,
 522                         0, info->name,
 523                         1, ml,
 524                         2, mbar,
 525                         -1);
 526                 info++;
 527         }
 528 }
 529
 530 static void gasmix_cb(GtkToggleButton *button, gpointer data)
 531 {
 532         struct cylinder_widget *cylinder = data;
 533         int state;
 534
 535         state = gtk_toggle_button_get_active(button);
 536         gtk_widget_set_sensitive(cylinder->o2, state);
 537         gtk_widget_set_sensitive(cylinder->he, state);
 538 }
 539
 540 static void pressure_cb(GtkToggleButton *button, gpointer data)
 541 {
 542         struct cylinder_widget *cylinder = data;
 543         int state;
 544
 545         state = gtk_toggle_button_get_active(button);
 546         gtk_widget_set_sensitive(cylinder->start, state);
 547         gtk_widget_set_sensitive(cylinder->end, state);
 548 }
 549
 550 static gboolean completion_cb(GtkEntryCompletion *widget, GtkTreeModel *model, GtkTreeIter *iter, struct cylinder_widget *cylinder)
 551 {
 552         const char *desc;
 553         unsigned int ml, mbar;
 554
 555         gtk_tree_model_get(model, iter, CYL_DESC, &desc, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 556         add_cylinder(cylinder, desc, ml, mbar);
 557         return TRUE;
 558 }
 559
 560 static void cylinder_activate_cb(GtkComboBox *combo_box, gpointer data)
 561 {
 562         struct cylinder_widget *cylinder = data;
 563         cylinder_cb(cylinder->description, data);
 564 }
 565
 566 /* Return a frame containing a hbox inside a hbox */
 567 static GtkWidget *frame_box(const char *title, GtkWidget *vbox)
 568 {
 569         GtkWidget *hbox, *frame;
 570
 571         hbox = gtk_hbox_new(FALSE, 10);
 572         gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, FALSE, 0);
 573
 574         frame = gtk_frame_new(title);
 575         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 0);
 576
 577         hbox = gtk_hbox_new(FALSE, 10);
 578         gtk_container_add(GTK_CONTAINER(frame), hbox);
 579
 580         return hbox;
 581 }
 582
 583 static GtkWidget *labeled_spinbutton(GtkWidget *box, const char *name, double min, double max, double incr)
 584 {
 585         GtkWidget *hbox, *label, *button;
 586
 587         hbox = gtk_hbox_new(FALSE, 0);
 588         gtk_box_pack_start(GTK_BOX(box), hbox, TRUE, FALSE, 0);
 589
 590         label = gtk_label_new(name);
 591         gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, FALSE, 0);
 592
 593         button = gtk_spin_button_new_with_range(min, max, incr);
 594         gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, FALSE, 0);
 595
 596         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 597
 598         return button;
 599 }
 600
 601 static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
 602 {
 603         GtkWidget *frame, *hbox;
 604         GtkEntry *entry;
 605         GtkEntryCompletion *completion;
 606         GtkWidget *widget;
 607
 608         /*
 609          * Cylinder type: description, size and
 610          * working pressure
 611          */
 612         frame = gtk_frame_new("Cylinder");
 613
 614         hbox = gtk_hbox_new(FALSE, 3);
 615         gtk_container_add(GTK_CONTAINER(frame), hbox);
 616
 617         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 618         gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
 619
 620         cylinder->description = GTK_COMBO_BOX(widget);
 621         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 622
 623         entry = GTK_ENTRY(GTK_BIN(widget)->child);
 624         g_signal_connect(entry, "activate", G_CALLBACK(cylinder_activate_cb), cylinder);
 625
 626         completion = gtk_entry_completion_new();
 627         gtk_entry_completion_set_text_column(completion, 0);
 628         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(model));
 629         g_signal_connect(completion, "match-selected", G_CALLBACK(completion_cb), cylinder);
 630         gtk_entry_set_completion(entry, completion);
 631
 632         hbox = gtk_hbox_new(FALSE, 3);
 633         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 634         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 635
 636         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 637         cylinder->size = GTK_SPIN_BUTTON(widget);
 638
 639         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 640         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 641
 642         /*
 643          * Cylinder start/end pressures
 644          */
 645         hbox = frame_box("Pressure", vbox);
 646
 647         widget = labeled_spinbutton(hbox, "Start", 0, 5000, 1);
 648         cylinder->start = widget;
 649
 650         widget = labeled_spinbutton(hbox, "End", 0, 5000, 1);
 651         cylinder->end = widget;
 652
 653         cylinder->pressure_button = gtk_check_button_new();
 654         gtk_box_pack_start(GTK_BOX(hbox), cylinder->pressure_button, FALSE, FALSE, 3);
 655         g_signal_connect(cylinder->pressure_button, "toggled", G_CALLBACK(pressure_cb), cylinder);
 656
 657         /*
 658          * Cylinder gas mix: Air, Nitrox or Trimix
 659          */
 660         hbox = frame_box("Gasmix", vbox);
 661
 662         widget = labeled_spinbutton(hbox, "O"UTF8_SUBSCRIPT_2 "%", 1, 100, 0.1);
 663         cylinder->o2 = widget;
 664         widget = labeled_spinbutton(hbox, "He%", 0, 100, 0.1);
 665         cylinder->he = widget;
 666         cylinder->gasmix_button = gtk_check_button_new();
 667         gtk_box_pack_start(GTK_BOX(hbox), cylinder->gasmix_button, FALSE, FALSE, 3);
 668         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(gasmix_cb), cylinder);
 669 }
 670
 671 static int edit_cylinder_dialog(int index, cylinder_t *cyl)
 672 {
 673         int success;
 674         GtkWidget *dialog, *vbox;
 675         struct cylinder_widget cylinder;
 676         struct dive *dive;
 677
 678         cylinder.index = index;
 679         cylinder.changed = 0;
 680
 681         dive = current_dive;
 682         if (!dive)
 683                 return 0;
 684         *cyl = dive->cylinder[index];
 685
 686         dialog = gtk_dialog_new_with_buttons("Cylinder",
 687                 GTK_WINDOW(main_window),
 688                 GTK_DIALOG_DESTROY_WITH_PARENT,
 689                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 690                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 691                 NULL);
 692
 693         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 694         cylinder_widget(vbox, &cylinder, cylinder_model);
 695
 696         show_cylinder(cyl, &cylinder);
 697
 698         gtk_widget_show_all(dialog);
 699         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 700         if (success) {
 701                 record_cylinder_changes(cyl, &cylinder);
 702                 dive->cylinder[index] = *cyl;
 703                 mark_divelist_changed(TRUE);
 704                 update_cylinder_related_info(dive);
 705                 flush_divelist(dive);
 706         }
 707
 708         gtk_widget_destroy(dialog);
 709
 710         return success;
 711 }
 712
 713 static int get_model_index(GtkListStore *model, GtkTreeIter *iter)
 714 {
 715         int *p, index;
 716         GtkTreePath *path;
 717
 718         path = gtk_tree_model_get_path(GTK_TREE_MODEL(model), iter);
 719         p = gtk_tree_path_get_indices(path);
 720         index = p ? *p : 0;
 721         gtk_tree_path_free(path);
 722         return index;
 723 }
 724
 725 static void edit_cb(GtkButton *button, GtkTreeView *tree_view)
 726 {
 727         int index;
 728         GtkTreeIter iter;
 729         GtkListStore *model = cylinder_list.model;
 730         GtkTreeSelection *selection;
 731         cylinder_t cyl;
 732
 733         selection = gtk_tree_view_get_selection(tree_view);
 734
 735         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 736         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 737                 return;
 738
 739         index = get_model_index(model, &iter);
 740         if (!edit_cylinder_dialog(index, &cyl))
 741                 return;
 742
 743         set_one_cylinder(index, &cyl, model, &iter);
 744         repaint_dive();
 745 }
 746
 747 static void add_cb(GtkButton *button, GtkTreeView *tree_view)
 748 {
 749         int index = cylinder_list.max_index;
 750         GtkTreeIter iter;
 751         GtkListStore *model = cylinder_list.model;
 752         GtkTreeSelection *selection;
 753         cylinder_t cyl;
 754
 755         if (!edit_cylinder_dialog(index, &cyl))
 756                 return;
 757
 758         gtk_list_store_append(model, &iter);
 759         set_one_cylinder(index, &cyl, model, &iter);
 760
 761         selection = gtk_tree_view_get_selection(tree_view);
 762         gtk_tree_selection_select_iter(selection, &iter);
 763
 764         cylinder_list.max_index++;
 765         gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
 766 }
 767
 768 static void del_cb(GtkButton *button, GtkTreeView *tree_view)
 769 {
 770         int index, nr;
 771         GtkTreeIter iter;
 772         GtkListStore *model = cylinder_list.model;
 773         GtkTreeSelection *selection;
 774         struct dive *dive;
 775         cylinder_t *cyl;
 776
 777         selection = gtk_tree_view_get_selection(tree_view);
 778
 779         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 780         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 781                 return;
 782
 783         index = get_model_index(model, &iter);
 784
 785         dive = current_dive;
 786         if (!dive)
 787                 return;
 788         cyl = dive->cylinder + index;
 789         nr = cylinder_list.max_index - index - 1;
 790
 791         gtk_list_store_remove(model, &iter);
 792
 793         cylinder_list.max_index--;
 794         memmove(cyl, cyl+1, nr*sizeof(*cyl));
 795         memset(cyl+nr, 0, sizeof(*cyl));
 796
 797         mark_divelist_changed(TRUE);
 798         flush_divelist(dive);
 799
 800         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 801         gtk_widget_set_sensitive(cylinder_list.del, 0);
 802         gtk_widget_set_sensitive(cylinder_list.add, 1);
 803 }
 804
 805 static GtkListStore *create_tank_size_model(void)
 806 {
 807         GtkListStore *model;
 808
 809         model = gtk_list_store_new(3,
 810                 G_TYPE_STRING,          /* Tank name */
 811                 G_TYPE_INT,             /* Tank size in mliter */
 812                 G_TYPE_INT,             /* Tank working pressure in mbar */
 813                 -1);
 814
 815         fill_tank_list(model);
 816         return model;
 817 }
 818
 819 static void size_data_func(GtkTreeViewColumn *col,
 820                            GtkCellRenderer *renderer,
 821                            GtkTreeModel *model,
 822                            GtkTreeIter *iter,
 823                            gpointer data)
 824 {
 825         int ml, mbar;
 826         double size, pressure;
 827         char buffer[10];
 828
 829         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 830         convert_volume_pressure(ml, mbar, &size, &pressure);
 831         if (size)
 832                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 833         else
 834                 strcpy(buffer, "unkn");
 835         g_object_set(renderer, "text", buffer, NULL);
 836 }
 837
 838 static void pressure_data_func(GtkTreeViewColumn *col,
 839                            GtkCellRenderer *renderer,
 840                            GtkTreeModel *model,
 841                            GtkTreeIter *iter,
 842                            gpointer data)
 843 {
 844         int index = (long)data;
 845         int mbar, decimals;
 846         double pressure;
 847         char buffer[10];
 848
 849         gtk_tree_model_get(model, iter, index, &mbar, -1);
 850         decimals = convert_pressure(mbar, &pressure);
 851         if (mbar)
 852                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 853         else
 854                 *buffer = 0;
 855         g_object_set(renderer, "text", buffer, NULL);
 856 }
 857
 858 static void percentage_data_func(GtkTreeViewColumn *col,
 859                            GtkCellRenderer *renderer,
 860                            GtkTreeModel *model,
 861                            GtkTreeIter *iter,
 862                            gpointer data)
 863 {
 864         int index = (long)data;
 865         int permille;
 866         char buffer[10];
 867
 868         gtk_tree_model_get(model, iter, index, &permille, -1);
 869         if (permille)
 870                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 871         else
 872                 *buffer = 0;
 873         g_object_set(renderer, "text", buffer, NULL);
 874 }
 875
 876 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 877 {
 878         GtkTreeIter iter;
 879         int selected;
 880
 881         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 882         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 883         gtk_widget_set_sensitive(cylinder_list.del, selected);
 884 }
 885
 886 static void row_activated_cb(GtkTreeView *tree_view,
 887                         GtkTreePath *path,
 888                         GtkTreeViewColumn *column,
 889                         GtkTreeModel *model)
 890 {
 891         edit_cb(NULL, tree_view);
 892 }
 893
 894 GtkWidget *cylinder_list_widget(void)
 895 {
 896         GtkListStore *model = cylinder_list.model;
 897         GtkWidget *tree_view;
 898         GtkTreeSelection *selection;
 899
 900         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 901         gtk_widget_set_can_focus(tree_view, FALSE);
 902
 903         g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), model);
 904
 905         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 906         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 907         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 908
 909         g_object_set(G_OBJECT(tree_view), "headers-visible", TRUE,
 910                                           "enable-grid-lines", GTK_TREE_VIEW_GRID_LINES_BOTH,
 911                                           NULL);
 912
 913         tree_view_column(tree_view, CYL_DESC, "Type", NULL, ALIGN_LEFT | UNSORTABLE);
 914         tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, ALIGN_RIGHT | UNSORTABLE);
 915         tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, ALIGN_RIGHT | UNSORTABLE);
 916         tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, ALIGN_RIGHT | UNSORTABLE);
 917         tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, ALIGN_RIGHT | UNSORTABLE);
 918         tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, ALIGN_RIGHT | UNSORTABLE);
 919         tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, ALIGN_RIGHT | UNSORTABLE);
 920         return tree_view;
 921 }
 922
 923 static GtkWidget *cylinder_list_create(void)
 924 {
 925         GtkListStore *model;
 926
 927         model = gtk_list_store_new(CYL_COLUMNS,
 928                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 929                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 930                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 931                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 932                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 933                 G_TYPE_INT,             /* CYL_O2: permille */
 934                 G_TYPE_INT              /* CYL_HE: permille */
 935                 );
 936         cylinder_list.model = model;
 937         return cylinder_list_widget();
 938 }
 939
 940 GtkWidget *equipment_widget(void)
 941 {
 942         GtkWidget *vbox, *hbox, *frame, *framebox, *tree_view;
 943         GtkWidget *add, *del, *edit;
 944
 945         vbox = gtk_vbox_new(FALSE, 3);
 946
 947         /*
 948          * We create the cylinder size model at startup, since
 949          * we're going to share it across all cylinders and all
 950          * dives. So if you add a new cylinder type in one dive,
 951          * it will show up when you edit the cylinder types for
 952          * another dive.
 953          */
 954         cylinder_model = create_tank_size_model();
 955
 956         tree_view = cylinder_list_create();
 957
 958         hbox = gtk_hbox_new(FALSE, 3);
 959         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 960
 961         frame = gtk_frame_new("Cylinders");
 962         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 963
 964         framebox = gtk_vbox_new(FALSE, 3);
 965         gtk_container_add(GTK_CONTAINER(frame), framebox);
 966
 967         hbox = gtk_hbox_new(FALSE, 3);
 968         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 969
 970         gtk_box_pack_start(GTK_BOX(hbox), tree_view, TRUE, FALSE, 3);
 971
 972         hbox = gtk_hbox_new(TRUE, 3);
 973         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 974
 975         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 976         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 977         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 978         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 979         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 980         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 981
 982         cylinder_list.edit = edit;
 983         cylinder_list.add = add;
 984         cylinder_list.del = del;
 985
 986         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), tree_view);
 987         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), tree_view);
 988         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), tree_view);
 989
 990         return vbox;
 991 }