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_DESC,
  26         CYL_SIZE,
  27         CYL_WORKP,
  28         CYL_STARTP,
  29         CYL_ENDP,
  30         CYL_O2,
  31         CYL_HE,
  32         CYL_COLUMNS
  33 };
  34
  35 static struct {
  36         int max_index;
  37         GtkListStore *model;
  38         GtkWidget *tree_view;
  39         GtkWidget *edit, *add, *del;
  40         GtkTreeViewColumn *desc, *size, *workp, *startp, *endp, *o2, *he;
  41 } cylinder_list;
  42
  43 struct cylinder_widget {
  44         int index, changed;
  45         const char *name;
  46         GtkWidget *hbox;
  47         GtkComboBox *description;
  48         GtkSpinButton *size, *pressure;
  49         GtkWidget *o2, *gasmix_button;
  50 };
  51
  52 static int convert_pressure(int mbar, double *p)
  53 {
  54         int decimals = 1;
  55         double pressure;
  56
  57         pressure = mbar / 1000.0;
  58         if (mbar) {
  59                 if (output_units.pressure == PSI) {
  60                         pressure *= 14.5037738; /* Bar to PSI */
  61                         decimals = 0;
  62                 }
  63         }
  64         *p = pressure;
  65         return decimals;
  66 }
  67
  68 static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
  69 {
  70         int decimals = 1;
  71         double volume, pressure;
  72
  73         volume = ml / 1000.0;
  74         pressure = mbar / 1000.0;
  75         if (mbar) {
  76                 if (output_units.volume == CUFT) {
  77                         volume /= 28.3168466;   /* Liters to cuft */
  78                         volume *= pressure / 1.01325;
  79                 }
  80                 if (output_units.pressure == PSI) {
  81                         pressure *= 14.5037738; /* Bar to PSI */
  82                         decimals = 0;
  83                 }
  84         }
  85         *v = volume;
  86         *p = pressure;
  87         return decimals;
  88 }
  89
  90 static void set_cylinder_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar)
  91 {
  92         double volume, pressure;
  93
  94         convert_volume_pressure(ml, mbar, &volume, &pressure);
  95         gtk_spin_button_set_value(cylinder->size, volume);
  96         gtk_spin_button_set_value(cylinder->pressure, pressure);
  97 }
  98
  99 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
 100 {
 101         GtkTreeIter iter;
 102         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 103         GValue value1 = {0, }, value2 = {0,};
 104         struct cylinder_widget *cylinder = data;
 105         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 106
 107         /* Did the user set it to some non-standard value? */
 108         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
 109                 cylinder->changed = 1;
 110                 return;
 111         }
 112
 113         /*
 114          * We get "change" signal callbacks just because we set
 115          * the description by hand. Whatever. So ignore them if
 116          * they are no-ops.
 117          */
 118         if (!cylinder->changed && cyl->type.description) {
 119                 int same;
 120                 char *desc = gtk_combo_box_get_active_text(combo_box);
 121
 122                 same = !strcmp(desc, cyl->type.description);
 123                 g_free(desc);
 124                 if (same)
 125                         return;
 126         }
 127         cylinder->changed = 1;
 128
 129         gtk_tree_model_get_value(model, &iter, 1, &value1);
 130         gtk_tree_model_get_value(model, &iter, 2, &value2);
 131
 132         set_cylinder_spinbuttons(cylinder, g_value_get_int(&value1), g_value_get_int(&value2));
 133 }
 134
 135 /*
 136  * The gtk_tree_model_foreach() interface is bad. It could have
 137  * returned whether the callback ever returned true
 138  */
 139 static int found_match = 0;
 140
 141 static gboolean match_cylinder(GtkTreeModel *model,
 142                                 GtkTreePath *path,
 143                                 GtkTreeIter *iter,
 144                                 gpointer data)
 145 {
 146         const char *name;
 147         struct cylinder_widget *cylinder = data;
 148         GValue value = {0, };
 149
 150         gtk_tree_model_get_value(model, iter, 0, &value);
 151         name = g_value_get_string(&value);
 152         if (strcmp(cylinder->name, name))
 153                 return FALSE;
 154         gtk_combo_box_set_active_iter(cylinder->description, iter);
 155         found_match = 1;
 156         return TRUE;
 157 }
 158
 159 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 160 {
 161         GtkTreeModel *model;
 162
 163         found_match = 0;
 164         model = gtk_combo_box_get_model(cylinder->description);
 165         cylinder->name = desc;
 166         gtk_tree_model_foreach(model, match_cylinder, cylinder);
 167
 168         if (!found_match) {
 169                 GtkListStore *store = GTK_LIST_STORE(model);
 170                 GtkTreeIter iter;
 171
 172                 gtk_list_store_append(store, &iter);
 173                 gtk_list_store_set(store, &iter,
 174                         0, desc,
 175                         1, ml,
 176                         2, mbar,
 177                         -1);
 178                 gtk_combo_box_set_active_iter(cylinder->description, &iter);
 179         }
 180 }
 181
 182 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 183 {
 184         const char *desc;
 185         int ml, mbar;
 186         double o2;
 187
 188         /* Don't show uninitialized cylinder widgets */
 189         if (!cylinder->description)
 190                 return;
 191
 192         desc = cyl->type.description;
 193         if (!desc)
 194                 desc = "";
 195         ml = cyl->type.size.mliter;
 196         mbar = cyl->type.workingpressure.mbar;
 197         add_cylinder(cylinder, desc, ml, mbar);
 198
 199         set_cylinder_spinbuttons(cylinder, cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 200         o2 = cyl->gasmix.o2.permille / 10.0;
 201         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 202         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 203         if (!o2)
 204                 o2 = 21.0;
 205         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 206 }
 207
 208 static int cyl_nothing(cylinder_t *cyl)
 209 {
 210         return  !cyl->type.size.mliter &&
 211                 !cyl->type.workingpressure.mbar &&
 212                 !cyl->type.description &&
 213                 !cyl->gasmix.o2.permille &&
 214                 !cyl->gasmix.he.permille &&
 215                 !cyl->start.mbar &&
 216                 !cyl->end.mbar;
 217 }
 218
 219 static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 220 {
 221         gtk_list_store_set(model, iter,
 222                 CYL_DESC, cyl->type.description ? : "",
 223                 CYL_SIZE, cyl->type.size.mliter,
 224                 CYL_WORKP, cyl->type.workingpressure.mbar,
 225                 CYL_STARTP, cyl->start.mbar,
 226                 CYL_ENDP, cyl->end.mbar,
 227                 CYL_O2, cyl->gasmix.o2.permille,
 228                 CYL_HE, cyl->gasmix.he.permille,
 229                 -1);
 230 }
 231
 232 void show_dive_equipment(struct dive *dive)
 233 {
 234         int i, max;
 235         GtkTreeIter iter;
 236         GtkListStore *model;
 237
 238         model = cylinder_list.model;
 239         gtk_list_store_clear(model);
 240         max = MAX_CYLINDERS;
 241         do {
 242                 cylinder_t *cyl = &dive->cylinder[max-1];
 243
 244                 if (!cyl_nothing(cyl))
 245                         break;
 246         } while (--max);
 247
 248         cylinder_list.max_index = max;
 249
 250         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 251         gtk_widget_set_sensitive(cylinder_list.del, 0);
 252         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 253
 254         for (i = 0; i < max; i++) {
 255                 cylinder_t *cyl = dive->cylinder+i;
 256
 257                 gtk_list_store_append(model, &iter);
 258                 set_one_cylinder(i, cyl, model, &iter);
 259         }
 260 }
 261
 262 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 263 {
 264         GtkWidget *frame, *hbox, *button;
 265
 266         frame = gtk_frame_new(name);
 267         gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, TRUE, 0);
 268
 269         hbox = gtk_hbox_new(FALSE, 3);
 270         gtk_container_add(GTK_CONTAINER(frame), hbox);
 271
 272         button = gtk_spin_button_new_with_range(min, max, incr);
 273         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 0);
 274
 275         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 276
 277         return button;
 278 }
 279
 280 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 281 {
 282         int mbar, ml;
 283
 284         if (output_units.pressure == PSI)
 285                 pressure /= 14.5037738;
 286
 287         if (pressure && output_units.volume == CUFT) {
 288                 volume *= 28.3168466;   /* CUFT to liter */
 289                 volume /= pressure / 1.01325;
 290         }
 291
 292         ml = volume * 1000 + 0.5;
 293         mbar = pressure * 1000 + 0.5;
 294
 295         if (o2 < 211)
 296                 o2 = 0;
 297         cyl->type.description = desc;
 298         cyl->type.size.mliter = ml;
 299         cyl->type.workingpressure.mbar = mbar;
 300         cyl->gasmix.o2.permille = o2;
 301
 302         /*
 303          * Also, insert it into the model if it doesn't already exist
 304          */
 305         add_cylinder(cylinder, desc, ml, mbar);
 306 }
 307
 308 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 309 {
 310         const gchar *desc;
 311         GtkComboBox *box;
 312         double volume, pressure;
 313         int o2;
 314
 315         /* Ignore uninitialized cylinder widgets */
 316         box = cylinder->description;
 317         if (!box)
 318                 return;
 319
 320         desc = gtk_combo_box_get_active_text(box);
 321         volume = gtk_spin_button_get_value(cylinder->size);
 322         pressure = gtk_spin_button_get_value(cylinder->pressure);
 323         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 324         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 325                 o2 = 0;
 326         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, o2);
 327 }
 328
 329 void flush_dive_equipment_changes(struct dive *dive)
 330 {
 331         /* We do nothing: we require the "Ok" button press */
 332 }
 333
 334 /*
 335  * We hardcode the most common standard cylinders,
 336  * we should pick up any other names from the dive
 337  * logs directly.
 338  */
 339 static struct tank_info {
 340         const char *name;
 341         int size;       /* cuft if < 1000, otherwise mliter */
 342         int psi;        /* If zero, size is in mliter */
 343 } tank_info[100] = {
 344         /* Need an empty entry for the no-cylinder case */
 345         { "", 0, 0 },
 346
 347         /* Size-only metric cylinders */
 348         { "10.0 l", 10000 },
 349         { "11.1 l", 11100 },
 350
 351         /* Most common AL cylinders */
 352         { "AL50",   50, 3000 },
 353         { "AL63",   63, 3000 },
 354         { "AL72",   72, 3000 },
 355         { "AL80",   80, 3000 },
 356         { "AL100", 100, 3300 },
 357
 358         /* Somewhat common LP steel cylinders */
 359         { "LP85",   85, 2640 },
 360         { "LP95",   95, 2640 },
 361         { "LP108", 108, 2640 },
 362         { "LP121", 121, 2640 },
 363
 364         /* Somewhat common HP steel cylinders */
 365         { "HP65",   65, 3442 },
 366         { "HP80",   80, 3442 },
 367         { "HP100", 100, 3442 },
 368         { "HP119", 119, 3442 },
 369         { "HP130", 130, 3442 },
 370
 371         /* We'll fill in more from the dive log dynamically */
 372         { NULL, }
 373 };
 374
 375 static void fill_tank_list(GtkListStore *store)
 376 {
 377         GtkTreeIter iter;
 378         struct tank_info *info = tank_info;
 379
 380         while (info->name) {
 381                 int size = info->size;
 382                 int psi = info->psi;
 383                 int mbar = 0, ml = size;
 384
 385                 /* Is it in cuft and psi? */
 386                 if (psi) {
 387                         double bar = 0.0689475729 * psi;
 388                         double airvolume = 28316.8466 * size;
 389                         double atm = bar / 1.01325;
 390
 391                         ml = airvolume / atm + 0.5;
 392                         mbar = bar*1000 + 0.5;
 393                 }
 394
 395                 gtk_list_store_append(store, &iter);
 396                 gtk_list_store_set(store, &iter,
 397                         0, info->name,
 398                         1, ml,
 399                         2, mbar,
 400                         -1);
 401                 info++;
 402         }
 403 }
 404
 405 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 406 {
 407         struct cylinder_widget *cylinder = data;
 408         int state;
 409
 410         state = gtk_toggle_button_get_active(button);
 411         gtk_widget_set_sensitive(cylinder->o2, state);
 412 }
 413
 414 static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
 415 {
 416         GtkWidget *frame, *hbox;
 417         GtkWidget *widget;
 418
 419         frame = gtk_frame_new("Cylinder");
 420
 421         hbox = gtk_hbox_new(FALSE, 3);
 422         gtk_container_add(GTK_CONTAINER(frame), hbox);
 423
 424         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 425         gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
 426
 427         cylinder->description = GTK_COMBO_BOX(widget);
 428         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 429
 430         hbox = gtk_hbox_new(FALSE, 3);
 431         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 432         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 433
 434         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 435         cylinder->size = GTK_SPIN_BUTTON(widget);
 436
 437         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 438         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 439
 440         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 441         cylinder->o2 = widget;
 442         cylinder->gasmix_button = gtk_check_button_new();
 443         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 444                 cylinder->gasmix_button, FALSE, FALSE, 3);
 445         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 446
 447         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 448 }
 449
 450 static int edit_cylinder_dialog(int index, cylinder_t *cyl)
 451 {
 452         int success;
 453         GtkWidget *dialog, *vbox;
 454         struct cylinder_widget cylinder;
 455         struct dive *dive;
 456
 457         cylinder.index = index;
 458         cylinder.changed = 0;
 459
 460         dive = current_dive;
 461         if (!dive)
 462                 return 0;
 463         *cyl = dive->cylinder[index];
 464
 465         dialog = gtk_dialog_new_with_buttons("Cylinder",
 466                 GTK_WINDOW(main_window),
 467                 GTK_DIALOG_DESTROY_WITH_PARENT,
 468                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 469                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 470                 NULL);
 471
 472         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 473         cylinder_widget(vbox, &cylinder, cylinder_model);
 474
 475         show_cylinder(cyl, &cylinder);
 476
 477         gtk_widget_show_all(dialog);
 478         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 479         if (success) {
 480                 record_cylinder_changes(cyl, &cylinder);
 481                 dive->cylinder[index] = *cyl;
 482                 mark_divelist_changed(TRUE);
 483                 flush_divelist(dive);
 484         }
 485
 486         gtk_widget_destroy(dialog);
 487
 488         return success;
 489 }
 490
 491 static int get_model_index(GtkListStore *model, GtkTreeIter *iter)
 492 {
 493         int *p, index;
 494         GtkTreePath *path;
 495
 496         path = gtk_tree_model_get_path(GTK_TREE_MODEL(model), iter);
 497         p = gtk_tree_path_get_indices(path);
 498         index = p ? *p : 0;
 499         gtk_tree_path_free(path);
 500         return index;
 501 }
 502
 503 static void edit_cb(GtkButton *button, gpointer data)
 504 {
 505         int index;
 506         GtkTreeIter iter;
 507         GtkListStore *model = cylinder_list.model;
 508         GtkTreeSelection *selection;
 509         cylinder_t cyl;
 510
 511         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 512
 513         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 514         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 515                 return;
 516
 517         index = get_model_index(model, &iter);
 518         if (!edit_cylinder_dialog(index, &cyl))
 519                 return;
 520
 521         set_one_cylinder(index, &cyl, model, &iter);
 522 }
 523
 524 static void add_cb(GtkButton *button, gpointer data)
 525 {
 526         int index = cylinder_list.max_index;
 527         GtkTreeIter iter;
 528         GtkListStore *model = cylinder_list.model;
 529         GtkTreeSelection *selection;
 530         cylinder_t cyl;
 531
 532         if (!edit_cylinder_dialog(index, &cyl))
 533                 return;
 534
 535         gtk_list_store_append(model, &iter);
 536         set_one_cylinder(index, &cyl, model, &iter);
 537
 538         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 539         gtk_tree_selection_select_iter(selection, &iter);
 540
 541         cylinder_list.max_index++;
 542         gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
 543 }
 544
 545 static void del_cb(GtkButton *button, gpointer data)
 546 {
 547         int index, nr;
 548         GtkTreeIter iter;
 549         GtkListStore *model = cylinder_list.model;
 550         GtkTreeSelection *selection;
 551         struct dive *dive;
 552         cylinder_t *cyl;
 553
 554         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 555
 556         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 557         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 558                 return;
 559
 560         index = get_model_index(model, &iter);
 561
 562         dive = current_dive;
 563         if (!dive)
 564                 return;
 565         cyl = dive->cylinder + index;
 566         nr = cylinder_list.max_index - index - 1;
 567
 568         gtk_list_store_remove(model, &iter);
 569
 570         cylinder_list.max_index--;
 571         memmove(cyl, cyl+1, nr*sizeof(*cyl));
 572         memset(cyl+nr, 0, sizeof(*cyl));
 573
 574         mark_divelist_changed(TRUE);
 575         flush_divelist(dive);
 576
 577         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 578         gtk_widget_set_sensitive(cylinder_list.del, 0);
 579         gtk_widget_set_sensitive(cylinder_list.add, 1);
 580 }
 581
 582 static GtkListStore *create_tank_size_model(void)
 583 {
 584         GtkListStore *model;
 585
 586         model = gtk_list_store_new(3,
 587                 G_TYPE_STRING,          /* Tank name */
 588                 G_TYPE_INT,             /* Tank size in mliter */
 589                 G_TYPE_INT,             /* Tank working pressure in mbar */
 590                 -1);
 591
 592         fill_tank_list(model);
 593         return model;
 594 }
 595
 596 static void size_data_func(GtkTreeViewColumn *col,
 597                            GtkCellRenderer *renderer,
 598                            GtkTreeModel *model,
 599                            GtkTreeIter *iter,
 600                            gpointer data)
 601 {
 602         int ml, mbar;
 603         double size, pressure;
 604         char buffer[10];
 605
 606         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 607         convert_volume_pressure(ml, mbar, &size, &pressure);
 608         if (size)
 609                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 610         else
 611                 strcpy(buffer, "unkn");
 612         g_object_set(renderer, "text", buffer, NULL);
 613 }
 614
 615 static void pressure_data_func(GtkTreeViewColumn *col,
 616                            GtkCellRenderer *renderer,
 617                            GtkTreeModel *model,
 618                            GtkTreeIter *iter,
 619                            gpointer data)
 620 {
 621         int index = (long)data;
 622         int mbar, decimals;
 623         double pressure;
 624         char buffer[10];
 625
 626         gtk_tree_model_get(model, iter, index, &mbar, -1);
 627         decimals = convert_pressure(mbar, &pressure);
 628         if (mbar)
 629                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 630         else
 631                 *buffer = 0;
 632         g_object_set(renderer, "text", buffer, NULL);
 633 }
 634
 635 static void percentage_data_func(GtkTreeViewColumn *col,
 636                            GtkCellRenderer *renderer,
 637                            GtkTreeModel *model,
 638                            GtkTreeIter *iter,
 639                            gpointer data)
 640 {
 641         int index = (long)data;
 642         int permille;
 643         char buffer[10];
 644
 645         gtk_tree_model_get(model, iter, index, &permille, -1);
 646         if (permille)
 647                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 648         else
 649                 *buffer = 0;
 650         g_object_set(renderer, "text", buffer, NULL);
 651 }
 652
 653 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 654 {
 655         GtkTreeIter iter;
 656         int selected;
 657
 658         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 659         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 660         gtk_widget_set_sensitive(cylinder_list.del, selected);
 661 }
 662
 663 static void row_activated_cb(GtkTreeView *tree_view,
 664                         GtkTreePath *path,
 665                         GtkTreeViewColumn *column,
 666                         GtkTreeModel *model)
 667 {
 668         edit_cb(NULL, NULL);
 669 }
 670
 671 static GtkWidget *cylinder_list_create(void)
 672 {
 673         GtkWidget *tree_view;
 674         GtkTreeSelection *selection;
 675         GtkListStore *model;
 676
 677         model = gtk_list_store_new(CYL_COLUMNS,
 678                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 679                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 680                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 681                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 682                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 683                 G_TYPE_INT,             /* CYL_O2: permille */
 684                 G_TYPE_INT              /* CYL_HE: permille */
 685                 );
 686         cylinder_list.model = model;
 687         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 688         g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), model);
 689
 690         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 691         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 692         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 693
 694         g_object_set(G_OBJECT(tree_view), "headers-visible", TRUE,
 695                                           "enable-grid-lines", GTK_TREE_VIEW_GRID_LINES_BOTH,
 696                                           NULL);
 697
 698         cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
 699         cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
 700         cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 701         cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 702         cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 703         cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 704         cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 705         return tree_view;
 706 }
 707
 708 GtkWidget *equipment_widget(void)
 709 {
 710         GtkWidget *vbox, *hbox, *frame, *framebox;
 711         GtkWidget *add, *del, *edit;
 712
 713         vbox = gtk_vbox_new(FALSE, 3);
 714
 715         /*
 716          * We create the cylinder size model at startup, since
 717          * we're going to share it across all cylinders and all
 718          * dives. So if you add a new cylinder type in one dive,
 719          * it will show up when you edit the cylinder types for
 720          * another dive.
 721          */
 722         cylinder_model = create_tank_size_model();
 723
 724         cylinder_list.tree_view = cylinder_list_create();
 725
 726         hbox = gtk_hbox_new(FALSE, 3);
 727         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 728
 729         frame = gtk_frame_new("Cylinders");
 730         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 731
 732         framebox = gtk_vbox_new(FALSE, 3);
 733         gtk_container_add(GTK_CONTAINER(frame), framebox);
 734
 735         hbox = gtk_hbox_new(FALSE, 3);
 736         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 737
 738         gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
 739
 740         hbox = gtk_hbox_new(TRUE, 3);
 741         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 742
 743         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 744         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 745         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 746         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 747         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 748         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 749
 750         cylinder_list.edit = edit;
 751         cylinder_list.add = add;
 752         cylinder_list.del = del;
 753
 754         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
 755         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
 756         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
 757
 758         return vbox;
 759 }