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  * void flush_dive_equipment_changes(struct dive *dive)
   7  *
   8  * called from gtk-ui:
   9  * GtkWidget *equipment_widget(void)
  10  */
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14 #include <stdarg.h>
  15 #include <time.h>
  16
  17 #include "dive.h"
  18 #include "display.h"
  19 #include "display-gtk.h"
  20 #include "divelist.h"
  21
  22 GtkListStore *cylinder_model;
  23
  24 enum {
  25         CYL_INDEX,
  26         CYL_DESC,
  27         CYL_SIZE,
  28         CYL_WORKP,
  29         CYL_STARTP,
  30         CYL_ENDP,
  31         CYL_O2,
  32         CYL_HE,
  33         CYL_COLUMNS
  34 };
  35
  36 static struct {
  37         int max_index;
  38         GtkListStore *model;
  39         GtkWidget *tree_view;
  40         GtkWidget *edit, *add, *del;
  41         GtkTreeViewColumn *desc, *size, *workp, *startp, *endp, *o2, *he;
  42 } cylinder_list;
  43
  44 struct cylinder_widget {
  45         int index, changed;
  46         const char *name;
  47         GtkWidget *hbox;
  48         GtkComboBox *description;
  49         GtkSpinButton *size, *pressure;
  50         GtkWidget *o2, *gasmix_button;
  51 };
  52
  53 static int convert_pressure(int mbar, double *p)
  54 {
  55         int decimals = 1;
  56         double pressure;
  57
  58         pressure = mbar / 1000.0;
  59         if (mbar) {
  60                 if (output_units.pressure == PSI) {
  61                         pressure *= 14.5037738; /* Bar to PSI */
  62                         decimals = 0;
  63                 }
  64         }
  65         *p = pressure;
  66         return decimals;
  67 }
  68
  69 static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
  70 {
  71         int decimals = 1;
  72         double volume, pressure;
  73
  74         volume = ml / 1000.0;
  75         pressure = mbar / 1000.0;
  76         if (mbar) {
  77                 if (output_units.volume == CUFT) {
  78                         volume /= 28.3168466;   /* Liters to cuft */
  79                         volume *= pressure / 1.01325;
  80                 }
  81                 if (output_units.pressure == PSI) {
  82                         pressure *= 14.5037738; /* Bar to PSI */
  83                         decimals = 0;
  84                 }
  85         }
  86         *v = volume;
  87         *p = pressure;
  88         return decimals;
  89 }
  90
  91 static void set_cylinder_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar)
  92 {
  93         double volume, pressure;
  94
  95         convert_volume_pressure(ml, mbar, &volume, &pressure);
  96         gtk_spin_button_set_value(cylinder->size, volume);
  97         gtk_spin_button_set_value(cylinder->pressure, pressure);
  98 }
  99
 100 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
 101 {
 102         GtkTreeIter iter;
 103         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 104         GValue value1 = {0, }, value2 = {0,};
 105         struct cylinder_widget *cylinder = data;
 106         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 107
 108         /* Did the user set it to some non-standard value? */
 109         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
 110                 cylinder->changed = 1;
 111                 return;
 112         }
 113
 114         /*
 115          * We get "change" signal callbacks just because we set
 116          * the description by hand. Whatever. So ignore them if
 117          * they are no-ops.
 118          */
 119         if (!cylinder->changed && cyl->type.description) {
 120                 int same;
 121                 char *desc = gtk_combo_box_get_active_text(combo_box);
 122
 123                 same = !strcmp(desc, cyl->type.description);
 124                 g_free(desc);
 125                 if (same)
 126                         return;
 127         }
 128         cylinder->changed = 1;
 129
 130         gtk_tree_model_get_value(model, &iter, 1, &value1);
 131         gtk_tree_model_get_value(model, &iter, 2, &value2);
 132
 133         set_cylinder_spinbuttons(cylinder, g_value_get_int(&value1), g_value_get_int(&value2));
 134 }
 135
 136 /*
 137  * The gtk_tree_model_foreach() interface is bad. It could have
 138  * returned whether the callback ever returned true
 139  */
 140 static int found_match = 0;
 141
 142 static gboolean match_cylinder(GtkTreeModel *model,
 143                                 GtkTreePath *path,
 144                                 GtkTreeIter *iter,
 145                                 gpointer data)
 146 {
 147         const char *name;
 148         struct cylinder_widget *cylinder = data;
 149         GValue value = {0, };
 150
 151         gtk_tree_model_get_value(model, iter, 0, &value);
 152         name = g_value_get_string(&value);
 153         if (strcmp(cylinder->name, name))
 154                 return FALSE;
 155         gtk_combo_box_set_active_iter(cylinder->description, iter);
 156         found_match = 1;
 157         return TRUE;
 158 }
 159
 160 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 161 {
 162         GtkTreeModel *model;
 163
 164         found_match = 0;
 165         model = gtk_combo_box_get_model(cylinder->description);
 166         cylinder->name = desc;
 167         gtk_tree_model_foreach(model, match_cylinder, cylinder);
 168
 169         if (!found_match) {
 170                 GtkListStore *store = GTK_LIST_STORE(model);
 171                 GtkTreeIter iter;
 172
 173                 gtk_list_store_append(store, &iter);
 174                 gtk_list_store_set(store, &iter,
 175                         0, desc,
 176                         1, ml,
 177                         2, mbar,
 178                         -1);
 179                 gtk_combo_box_set_active_iter(cylinder->description, &iter);
 180         }
 181 }
 182
 183 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 184 {
 185         const char *desc;
 186         int ml, mbar;
 187         double o2;
 188
 189         /* Don't show uninitialized cylinder widgets */
 190         if (!cylinder->description)
 191                 return;
 192
 193         desc = cyl->type.description;
 194         if (!desc)
 195                 desc = "";
 196         ml = cyl->type.size.mliter;
 197         mbar = cyl->type.workingpressure.mbar;
 198         add_cylinder(cylinder, desc, ml, mbar);
 199
 200         set_cylinder_spinbuttons(cylinder, cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 201         o2 = cyl->gasmix.o2.permille / 10.0;
 202         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 203         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 204         if (!o2)
 205                 o2 = 21.0;
 206         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 207 }
 208
 209 static int cyl_nothing(cylinder_t *cyl)
 210 {
 211         return  !cyl->type.size.mliter &&
 212                 !cyl->type.workingpressure.mbar &&
 213                 !cyl->type.description &&
 214                 !cyl->gasmix.o2.permille &&
 215                 !cyl->gasmix.he.permille &&
 216                 !cyl->start.mbar &&
 217                 !cyl->end.mbar;
 218 }
 219
 220 static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 221 {
 222         gtk_list_store_set(model, iter,
 223                 CYL_INDEX, index,
 224                 CYL_DESC, cyl->type.description ? : "",
 225                 CYL_SIZE, cyl->type.size.mliter,
 226                 CYL_WORKP, cyl->type.workingpressure.mbar,
 227                 CYL_STARTP, cyl->start.mbar,
 228                 CYL_ENDP, cyl->end.mbar,
 229                 CYL_O2, cyl->gasmix.o2.permille,
 230                 CYL_HE, cyl->gasmix.he.permille,
 231                 -1);
 232 }
 233
 234 void show_dive_equipment(struct dive *dive)
 235 {
 236         int i, max;
 237         GtkTreeIter iter;
 238         GtkListStore *model;
 239
 240         model = cylinder_list.model;
 241         gtk_list_store_clear(model);
 242         max = MAX_CYLINDERS;
 243         do {
 244                 cylinder_t *cyl = &dive->cylinder[max-1];
 245
 246                 if (!cyl_nothing(cyl))
 247                         break;
 248         } while (--max);
 249
 250         cylinder_list.max_index = max;
 251
 252         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 253         gtk_widget_set_sensitive(cylinder_list.del, 0);
 254         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 255
 256         for (i = 0; i < max; i++) {
 257                 cylinder_t *cyl = dive->cylinder+i;
 258
 259                 gtk_list_store_append(model, &iter);
 260                 set_one_cylinder(i, cyl, model, &iter);
 261         }
 262 }
 263
 264 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 265 {
 266         GtkWidget *frame, *hbox, *button;
 267
 268         frame = gtk_frame_new(name);
 269         gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, TRUE, 0);
 270
 271         hbox = gtk_hbox_new(FALSE, 3);
 272         gtk_container_add(GTK_CONTAINER(frame), hbox);
 273
 274         button = gtk_spin_button_new_with_range(min, max, incr);
 275         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 0);
 276
 277         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 278
 279         return button;
 280 }
 281
 282 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 283 {
 284         int mbar, ml;
 285
 286         if (output_units.pressure == PSI)
 287                 pressure /= 14.5037738;
 288
 289         if (pressure && output_units.volume == CUFT) {
 290                 volume *= 28.3168466;   /* CUFT to liter */
 291                 volume /= pressure / 1.01325;
 292         }
 293
 294         ml = volume * 1000 + 0.5;
 295         mbar = pressure * 1000 + 0.5;
 296
 297         if (o2 < 211)
 298                 o2 = 0;
 299         cyl->type.description = desc;
 300         cyl->type.size.mliter = ml;
 301         cyl->type.workingpressure.mbar = mbar;
 302         cyl->gasmix.o2.permille = o2;
 303
 304         /*
 305          * Also, insert it into the model if it doesn't already exist
 306          */
 307         add_cylinder(cylinder, desc, ml, mbar);
 308 }
 309
 310 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 311 {
 312         const gchar *desc;
 313         GtkComboBox *box;
 314         double volume, pressure;
 315         int o2;
 316
 317         /* Ignore uninitialized cylinder widgets */
 318         box = cylinder->description;
 319         if (!box)
 320                 return;
 321
 322         desc = gtk_combo_box_get_active_text(box);
 323         volume = gtk_spin_button_get_value(cylinder->size);
 324         pressure = gtk_spin_button_get_value(cylinder->pressure);
 325         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 326         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 327                 o2 = 0;
 328         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, o2);
 329 }
 330
 331 void flush_dive_equipment_changes(struct dive *dive)
 332 {
 333         /* We do nothing: we require the "Ok" button press */
 334 }
 335
 336 /*
 337  * We hardcode the most common standard cylinders,
 338  * we should pick up any other names from the dive
 339  * logs directly.
 340  */
 341 static struct tank_info {
 342         const char *name;
 343         int size;       /* cuft if < 1000, otherwise mliter */
 344         int psi;        /* If zero, size is in mliter */
 345 } tank_info[100] = {
 346         /* Need an empty entry for the no-cylinder case */
 347         { "", 0, 0 },
 348
 349         /* Size-only metric cylinders */
 350         { "10.0 l", 10000 },
 351         { "11.1 l", 11100 },
 352
 353         /* Most common AL cylinders */
 354         { "AL50",   50, 3000 },
 355         { "AL63",   63, 3000 },
 356         { "AL72",   72, 3000 },
 357         { "AL80",   80, 3000 },
 358         { "AL100", 100, 3300 },
 359
 360         /* Somewhat common LP steel cylinders */
 361         { "LP85",   85, 2640 },
 362         { "LP95",   95, 2640 },
 363         { "LP108", 108, 2640 },
 364         { "LP121", 121, 2640 },
 365
 366         /* Somewhat common HP steel cylinders */
 367         { "HP65",   65, 3442 },
 368         { "HP80",   80, 3442 },
 369         { "HP100", 100, 3442 },
 370         { "HP119", 119, 3442 },
 371         { "HP130", 130, 3442 },
 372
 373         /* We'll fill in more from the dive log dynamically */
 374         { NULL, }
 375 };
 376
 377 static void fill_tank_list(GtkListStore *store)
 378 {
 379         GtkTreeIter iter;
 380         struct tank_info *info = tank_info;
 381
 382         while (info->name) {
 383                 int size = info->size;
 384                 int psi = info->psi;
 385                 int mbar = 0, ml = size;
 386
 387                 /* Is it in cuft and psi? */
 388                 if (psi) {
 389                         double bar = 0.0689475729 * psi;
 390                         double airvolume = 28316.8466 * size;
 391                         double atm = bar / 1.01325;
 392
 393                         ml = airvolume / atm + 0.5;
 394                         mbar = bar*1000 + 0.5;
 395                 }
 396
 397                 gtk_list_store_append(store, &iter);
 398                 gtk_list_store_set(store, &iter,
 399                         0, info->name,
 400                         1, ml,
 401                         2, mbar,
 402                         -1);
 403                 info++;
 404         }
 405 }
 406
 407 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 408 {
 409         struct cylinder_widget *cylinder = data;
 410         int state;
 411
 412         state = gtk_toggle_button_get_active(button);
 413         gtk_widget_set_sensitive(cylinder->o2, state);
 414 }
 415
 416 static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
 417 {
 418         GtkWidget *frame, *hbox;
 419         GtkWidget *widget;
 420
 421         frame = gtk_frame_new("Cylinder");
 422
 423         hbox = gtk_hbox_new(FALSE, 3);
 424         gtk_container_add(GTK_CONTAINER(frame), hbox);
 425
 426         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 427         gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
 428
 429         cylinder->description = GTK_COMBO_BOX(widget);
 430         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 431
 432         hbox = gtk_hbox_new(FALSE, 3);
 433         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 434         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 435
 436         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 437         cylinder->size = GTK_SPIN_BUTTON(widget);
 438
 439         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 440         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 441
 442         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 443         cylinder->o2 = widget;
 444         cylinder->gasmix_button = gtk_check_button_new();
 445         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 446                 cylinder->gasmix_button, FALSE, FALSE, 3);
 447         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 448
 449         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 450 }
 451
 452 static void edit_cylinder_dialog(int index, GtkListStore *model, GtkTreeIter *iter)
 453 {
 454         int result;
 455         struct cylinder_widget cylinder;
 456         GtkWidget *dialog, *vbox;
 457         struct dive *dive;
 458         cylinder_t *cyl;
 459
 460         dive = current_dive;
 461         if (!dive)
 462                 return;
 463         cyl = dive->cylinder + index;
 464         cylinder.index = index;
 465         cylinder.changed = 0;
 466
 467         dialog = gtk_dialog_new_with_buttons("Cylinder",
 468                 GTK_WINDOW(main_window),
 469                 GTK_DIALOG_DESTROY_WITH_PARENT,
 470                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 471                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 472                 NULL);
 473
 474         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 475         cylinder_widget(vbox, &cylinder, cylinder_model);
 476
 477         show_cylinder(cyl, &cylinder);
 478
 479         gtk_widget_show_all(dialog);
 480         result = gtk_dialog_run(GTK_DIALOG(dialog));
 481         if (result == GTK_RESPONSE_ACCEPT) {
 482                 record_cylinder_changes(cyl, &cylinder);
 483                 set_one_cylinder(index, cyl, model, iter);
 484                 mark_divelist_changed(TRUE);
 485                 flush_divelist(dive);
 486         }
 487         gtk_widget_destroy(dialog);
 488 }
 489
 490 static void edit_cb(GtkButton *button, gpointer data)
 491 {
 492         int index;
 493         GtkTreeIter iter;
 494         GtkListStore *model = cylinder_list.model;
 495         GtkTreeSelection *selection;
 496
 497         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 498
 499         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 500         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 501                 return;
 502
 503         gtk_tree_model_get(GTK_TREE_MODEL(model), &iter, CYL_INDEX, &index, -1);
 504         edit_cylinder_dialog(index, model, &iter);
 505 }
 506
 507 static void add_cb(GtkButton *button, gpointer data)
 508 {
 509         int index = cylinder_list.max_index;
 510         GtkTreeIter iter;
 511         GtkListStore *model = cylinder_list.model;
 512         GtkTreeSelection *selection;
 513
 514         gtk_list_store_append(model, &iter);
 515         gtk_list_store_set(model, &iter, CYL_INDEX, index, -1);
 516
 517         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 518         gtk_tree_selection_select_iter(selection, &iter);
 519
 520         edit_cylinder_dialog(index, model, &iter);
 521         cylinder_list.max_index++;
 522         gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
 523 }
 524
 525 static void del_cb(GtkButton *button, gpointer data)
 526 {
 527         int index;
 528         GtkTreeIter iter;
 529         GtkListStore *model = cylinder_list.model;
 530         GtkTreeSelection *selection;
 531
 532         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 533
 534         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 535         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 536                 return;
 537
 538         gtk_tree_model_get(GTK_TREE_MODEL(model), &iter, CYL_INDEX, &index, -1);
 539         if (gtk_list_store_remove(model, &iter)) {
 540                 do {
 541                         gtk_list_store_set(model, &iter, CYL_INDEX, index, -1);
 542                         index++;
 543                 } while (gtk_tree_model_iter_next(GTK_TREE_MODEL(model), &iter));
 544         }
 545
 546         cylinder_list.max_index--;
 547         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 548         gtk_widget_set_sensitive(cylinder_list.del, 0);
 549         gtk_widget_set_sensitive(cylinder_list.add, 1);
 550 }
 551
 552 static GtkListStore *create_tank_size_model(void)
 553 {
 554         GtkListStore *model;
 555
 556         model = gtk_list_store_new(3,
 557                 G_TYPE_STRING,          /* Tank name */
 558                 G_TYPE_INT,             /* Tank size in mliter */
 559                 G_TYPE_INT,             /* Tank working pressure in mbar */
 560                 -1);
 561
 562         fill_tank_list(model);
 563         return model;
 564 }
 565
 566 static void size_data_func(GtkTreeViewColumn *col,
 567                            GtkCellRenderer *renderer,
 568                            GtkTreeModel *model,
 569                            GtkTreeIter *iter,
 570                            gpointer data)
 571 {
 572         int ml, mbar;
 573         double size, pressure;
 574         char buffer[10];
 575
 576         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 577         convert_volume_pressure(ml, mbar, &size, &pressure);
 578         if (size)
 579                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 580         else
 581                 strcpy(buffer, "unkn");
 582         g_object_set(renderer, "text", buffer, NULL);
 583 }
 584
 585 static void pressure_data_func(GtkTreeViewColumn *col,
 586                            GtkCellRenderer *renderer,
 587                            GtkTreeModel *model,
 588                            GtkTreeIter *iter,
 589                            gpointer data)
 590 {
 591         int index = (long)data;
 592         int mbar, decimals;
 593         double pressure;
 594         char buffer[10];
 595
 596         gtk_tree_model_get(model, iter, index, &mbar, -1);
 597         decimals = convert_pressure(mbar, &pressure);
 598         if (mbar)
 599                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 600         else
 601                 *buffer = 0;
 602         g_object_set(renderer, "text", buffer, NULL);
 603 }
 604
 605 static void percentage_data_func(GtkTreeViewColumn *col,
 606                            GtkCellRenderer *renderer,
 607                            GtkTreeModel *model,
 608                            GtkTreeIter *iter,
 609                            gpointer data)
 610 {
 611         int index = (long)data;
 612         int permille;
 613         char buffer[10];
 614
 615         gtk_tree_model_get(model, iter, index, &permille, -1);
 616         if (permille)
 617                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 618         else
 619                 *buffer = 0;
 620         g_object_set(renderer, "text", buffer, NULL);
 621 }
 622
 623 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 624 {
 625         GtkTreeIter iter;
 626         int selected;
 627
 628         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 629         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 630         gtk_widget_set_sensitive(cylinder_list.del, selected);
 631 }
 632
 633 static GtkWidget *cylinder_list_create(void)
 634 {
 635         GtkWidget *tree_view;
 636         GtkTreeSelection *selection;
 637         GtkListStore *model;
 638
 639         model = gtk_list_store_new(CYL_COLUMNS,
 640                 G_TYPE_INT,             /* CYL_INDEX */
 641                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 642                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 643                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 644                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 645                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 646                 G_TYPE_INT,             /* CYL_O2: permille */
 647                 G_TYPE_INT              /* CYL_HE: permille */
 648                 );
 649         cylinder_list.model = model;
 650         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 651
 652         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 653         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 654         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 655
 656         tree_view_column(tree_view, CYL_INDEX, "Nr", NULL, PANGO_ALIGN_LEFT, TRUE);
 657         cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
 658         cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
 659         cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 660         cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 661         cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 662         cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 663         cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 664         return tree_view;
 665 }
 666
 667 GtkWidget *equipment_widget(void)
 668 {
 669         GtkWidget *vbox, *hbox, *frame, *framebox;
 670         GtkWidget *add, *del, *edit;
 671
 672         vbox = gtk_vbox_new(FALSE, 3);
 673
 674         /*
 675          * We create the cylinder size model at startup, since
 676          * we're going to share it across all cylinders and all
 677          * dives. So if you add a new cylinder type in one dive,
 678          * it will show up when you edit the cylinder types for
 679          * another dive.
 680          */
 681         cylinder_model = create_tank_size_model();
 682
 683         cylinder_list.tree_view = cylinder_list_create();
 684
 685         hbox = gtk_hbox_new(FALSE, 3);
 686         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 687
 688         frame = gtk_frame_new("Cylinders");
 689         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 690
 691         framebox = gtk_vbox_new(FALSE, 3);
 692         gtk_container_add(GTK_CONTAINER(frame), framebox);
 693
 694         hbox = gtk_hbox_new(FALSE, 3);
 695         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 696
 697         gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
 698
 699         hbox = gtk_hbox_new(TRUE, 3);
 700         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 701
 702         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 703         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 704         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 705         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 706         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 707         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 708
 709         cylinder_list.edit = edit;
 710         cylinder_list.add = add;
 711         cylinder_list.del = del;
 712
 713         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
 714         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
 715         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
 716
 717         return vbox;
 718 }