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 static 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, *start, *end;
  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_type_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 set_cylinder_pressure_spinbuttons(struct cylinder_widget *cylinder, int start, int end)
 100 {
 101         double pressure;
 102
 103         convert_pressure(start, &pressure);
 104         gtk_spin_button_set_value(cylinder->start, pressure);
 105         convert_pressure(end, &pressure);
 106         gtk_spin_button_set_value(cylinder->end, pressure);
 107 }
 108
 109 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
 110 {
 111         GtkTreeIter iter;
 112         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 113         int ml, mbar;
 114         struct cylinder_widget *cylinder = data;
 115         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 116
 117         /* Did the user set it to some non-standard value? */
 118         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
 119                 cylinder->changed = 1;
 120                 return;
 121         }
 122
 123         /*
 124          * We get "change" signal callbacks just because we set
 125          * the description by hand. Whatever. So ignore them if
 126          * they are no-ops.
 127          */
 128         if (!cylinder->changed && cyl->type.description) {
 129                 int same;
 130                 char *desc = gtk_combo_box_get_active_text(combo_box);
 131
 132                 same = !strcmp(desc, cyl->type.description);
 133                 g_free(desc);
 134                 if (same)
 135                         return;
 136         }
 137         cylinder->changed = 1;
 138
 139         gtk_tree_model_get(model, &iter,
 140                 CYL_SIZE, &ml,
 141                 CYL_WORKP, &mbar,
 142                 -1);
 143
 144         set_cylinder_type_spinbuttons(cylinder, ml, mbar);
 145 }
 146
 147 /*
 148  * The gtk_tree_model_foreach() interface is bad. It could have
 149  * returned whether the callback ever returned true
 150  */
 151 static GtkTreeIter *found_match = NULL;
 152 static GtkTreeIter match_iter;
 153
 154 static gboolean match_cylinder(GtkTreeModel *model,
 155                                 GtkTreePath *path,
 156                                 GtkTreeIter *iter,
 157                                 gpointer data)
 158 {
 159         const char *name;
 160         const char *desc = data;
 161         GValue value = {0, };
 162
 163         gtk_tree_model_get_value(model, iter, 0, &value);
 164         name = g_value_get_string(&value);
 165         if (strcmp(desc, name))
 166                 return FALSE;
 167         match_iter = *iter;
 168         found_match = &match_iter;
 169         return TRUE;
 170 }
 171
 172 static GtkTreeIter *add_cylinder_type(const char *desc, int ml, int mbar, GtkTreeIter *iter)
 173 {
 174         GtkTreeModel *model;
 175
 176         /* Don't even bother adding stuff without a size */
 177         if (!ml)
 178                 return NULL;
 179
 180         found_match = NULL;
 181         model = GTK_TREE_MODEL(cylinder_model);
 182         gtk_tree_model_foreach(model, match_cylinder, (void *)desc);
 183
 184         if (!found_match) {
 185                 GtkListStore *store = GTK_LIST_STORE(model);
 186
 187                 gtk_list_store_append(store, iter);
 188                 gtk_list_store_set(store, iter,
 189                         0, desc,
 190                         1, ml,
 191                         2, mbar,
 192                         -1);
 193                 return iter;
 194         }
 195         return found_match;
 196 }
 197
 198 /*
 199  * When adding a dive, we'll add all the pre-existing cylinder
 200  * information from that dive to our cylinder model.
 201  */
 202 void add_cylinder_description(cylinder_type_t *type)
 203 {
 204         GtkTreeIter iter;
 205         const char *desc;
 206         unsigned int size, workp;
 207
 208         desc = type->description;
 209         if (!desc)
 210                 return;
 211         size = type->size.mliter;
 212         workp = type->workingpressure.mbar;
 213         add_cylinder_type(desc, size, workp, &iter);
 214 }
 215
 216 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 217 {
 218         GtkTreeIter iter, *match;
 219
 220         cylinder->name = desc;
 221         match = add_cylinder_type(desc, ml, mbar, &iter);
 222         if (match)
 223                 gtk_combo_box_set_active_iter(cylinder->description, match);
 224 }
 225
 226 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 227 {
 228         const char *desc;
 229         int ml, mbar;
 230         double o2;
 231
 232         /* Don't show uninitialized cylinder widgets */
 233         if (!cylinder->description)
 234                 return;
 235
 236         desc = cyl->type.description;
 237         if (!desc)
 238                 desc = "";
 239         ml = cyl->type.size.mliter;
 240         mbar = cyl->type.workingpressure.mbar;
 241         add_cylinder(cylinder, desc, ml, mbar);
 242
 243         set_cylinder_type_spinbuttons(cylinder,
 244                 cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 245         set_cylinder_pressure_spinbuttons(cylinder,
 246                 cyl->start.mbar, cyl->end.mbar);
 247         o2 = cyl->gasmix.o2.permille / 10.0;
 248         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 249         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 250         if (!o2)
 251                 o2 = 21.0;
 252         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 253 }
 254
 255 static int cyl_nothing(cylinder_t *cyl)
 256 {
 257         return  !cyl->type.size.mliter &&
 258                 !cyl->type.workingpressure.mbar &&
 259                 !cyl->type.description &&
 260                 !cyl->gasmix.o2.permille &&
 261                 !cyl->gasmix.he.permille &&
 262                 !cyl->start.mbar &&
 263                 !cyl->end.mbar;
 264 }
 265
 266 static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 267 {
 268         gtk_list_store_set(model, iter,
 269                 CYL_DESC, cyl->type.description ? : "",
 270                 CYL_SIZE, cyl->type.size.mliter,
 271                 CYL_WORKP, cyl->type.workingpressure.mbar,
 272                 CYL_STARTP, cyl->start.mbar,
 273                 CYL_ENDP, cyl->end.mbar,
 274                 CYL_O2, cyl->gasmix.o2.permille,
 275                 CYL_HE, cyl->gasmix.he.permille,
 276                 -1);
 277 }
 278
 279 void show_dive_equipment(struct dive *dive)
 280 {
 281         int i, max;
 282         GtkTreeIter iter;
 283         GtkListStore *model;
 284
 285         model = cylinder_list.model;
 286         gtk_list_store_clear(model);
 287         max = MAX_CYLINDERS;
 288         do {
 289                 cylinder_t *cyl = &dive->cylinder[max-1];
 290
 291                 if (!cyl_nothing(cyl))
 292                         break;
 293         } while (--max);
 294
 295         cylinder_list.max_index = max;
 296
 297         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 298         gtk_widget_set_sensitive(cylinder_list.del, 0);
 299         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 300
 301         for (i = 0; i < max; i++) {
 302                 cylinder_t *cyl = dive->cylinder+i;
 303
 304                 gtk_list_store_append(model, &iter);
 305                 set_one_cylinder(i, cyl, model, &iter);
 306         }
 307 }
 308
 309 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 310 {
 311         GtkWidget *frame, *hbox, *button;
 312
 313         frame = gtk_frame_new(name);
 314         gtk_box_pack_start(GTK_BOX(vbox), frame, TRUE, FALSE, 0);
 315
 316         hbox = gtk_hbox_new(FALSE, 3);
 317         gtk_container_add(GTK_CONTAINER(frame), hbox);
 318
 319         button = gtk_spin_button_new_with_range(min, max, incr);
 320         gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, FALSE, 0);
 321
 322         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 323
 324         return button;
 325 }
 326
 327 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc,
 328                 double volume, double pressure, double start, double end, int o2)
 329 {
 330         int mbar, ml;
 331
 332         if (output_units.pressure == PSI) {
 333                 pressure /= 14.5037738;
 334                 start /= 14.5037738;
 335                 end /= 14.5037738;
 336         }
 337
 338         if (pressure && output_units.volume == CUFT) {
 339                 volume *= 28.3168466;   /* CUFT to liter */
 340                 volume /= pressure / 1.01325;
 341         }
 342
 343         ml = volume * 1000 + 0.5;
 344         mbar = pressure * 1000 + 0.5;
 345
 346         if (o2 < 211)
 347                 o2 = 0;
 348         cyl->type.description = desc;
 349         cyl->type.size.mliter = ml;
 350         cyl->type.workingpressure.mbar = mbar;
 351         cyl->start.mbar = start * 1000 + 0.5;
 352         cyl->end.mbar = end * 1000 + 0.5;
 353         cyl->gasmix.o2.permille = o2;
 354
 355         /*
 356          * Also, insert it into the model if it doesn't already exist
 357          */
 358         add_cylinder(cylinder, desc, ml, mbar);
 359 }
 360
 361 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 362 {
 363         const gchar *desc;
 364         GtkComboBox *box;
 365         double volume, pressure, start, end;
 366         int o2;
 367
 368         /* Ignore uninitialized cylinder widgets */
 369         box = cylinder->description;
 370         if (!box)
 371                 return;
 372
 373         desc = gtk_combo_box_get_active_text(box);
 374         volume = gtk_spin_button_get_value(cylinder->size);
 375         pressure = gtk_spin_button_get_value(cylinder->pressure);
 376         start = gtk_spin_button_get_value(cylinder->start);
 377         end = gtk_spin_button_get_value(cylinder->end);
 378         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 379         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 380                 o2 = 0;
 381         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, start, end, o2);
 382 }
 383
 384 void flush_dive_equipment_changes(struct dive *dive)
 385 {
 386         /* We do nothing: we require the "Ok" button press */
 387 }
 388
 389 /*
 390  * We hardcode the most common standard cylinders,
 391  * we should pick up any other names from the dive
 392  * logs directly.
 393  */
 394 static struct tank_info {
 395         const char *name;
 396         int size;       /* cuft if < 1000, otherwise mliter */
 397         int psi;        /* If zero, size is in mliter */
 398 } tank_info[100] = {
 399         /* Need an empty entry for the no-cylinder case */
 400         { "", 0, 0 },
 401
 402         /* Size-only metric cylinders */
 403         { "10.0 l", 10000 },
 404         { "11.1 l", 11100 },
 405
 406         /* Most common AL cylinders */
 407         { "AL50",   50, 3000 },
 408         { "AL63",   63, 3000 },
 409         { "AL72",   72, 3000 },
 410         { "AL80",   80, 3000 },
 411         { "AL100", 100, 3300 },
 412
 413         /* Somewhat common LP steel cylinders */
 414         { "LP85",   85, 2640 },
 415         { "LP95",   95, 2640 },
 416         { "LP108", 108, 2640 },
 417         { "LP121", 121, 2640 },
 418
 419         /* Somewhat common HP steel cylinders */
 420         { "HP65",   65, 3442 },
 421         { "HP80",   80, 3442 },
 422         { "HP100", 100, 3442 },
 423         { "HP119", 119, 3442 },
 424         { "HP130", 130, 3442 },
 425
 426         /* We'll fill in more from the dive log dynamically */
 427         { NULL, }
 428 };
 429
 430 static void fill_tank_list(GtkListStore *store)
 431 {
 432         GtkTreeIter iter;
 433         struct tank_info *info = tank_info;
 434
 435         while (info->name) {
 436                 int size = info->size;
 437                 int psi = info->psi;
 438                 int mbar = 0, ml = size;
 439
 440                 /* Is it in cuft and psi? */
 441                 if (psi) {
 442                         double bar = 0.0689475729 * psi;
 443                         double airvolume = 28316.8466 * size;
 444                         double atm = bar / 1.01325;
 445
 446                         ml = airvolume / atm + 0.5;
 447                         mbar = bar*1000 + 0.5;
 448                 }
 449
 450                 gtk_list_store_append(store, &iter);
 451                 gtk_list_store_set(store, &iter,
 452                         0, info->name,
 453                         1, ml,
 454                         2, mbar,
 455                         -1);
 456                 info++;
 457         }
 458 }
 459
 460 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 461 {
 462         struct cylinder_widget *cylinder = data;
 463         int state;
 464
 465         state = gtk_toggle_button_get_active(button);
 466         gtk_widget_set_sensitive(cylinder->o2, state);
 467 }
 468
 469 static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
 470 {
 471         GtkWidget *frame, *hbox;
 472         GtkWidget *widget;
 473
 474         /*
 475          * Cylinder type: description, size and
 476          * working pressure
 477          */
 478         frame = gtk_frame_new("Cylinder");
 479
 480         hbox = gtk_hbox_new(FALSE, 3);
 481         gtk_container_add(GTK_CONTAINER(frame), hbox);
 482
 483         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 484         gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
 485
 486         cylinder->description = GTK_COMBO_BOX(widget);
 487         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 488
 489         hbox = gtk_hbox_new(FALSE, 3);
 490         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 491         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 492
 493         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 494         cylinder->size = GTK_SPIN_BUTTON(widget);
 495
 496         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 497         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 498
 499         /*
 500          * Cylinder start/end pressures
 501          */
 502         hbox = gtk_hbox_new(FALSE, 3);
 503         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 504
 505         widget = create_spinbutton(hbox, "Start Pressure", 0, 5000, 1);
 506         cylinder->start = GTK_SPIN_BUTTON(widget);
 507
 508         widget = create_spinbutton(hbox, "End Pressure", 0, 5000, 1);
 509         cylinder->end = GTK_SPIN_BUTTON(widget);
 510
 511         /*
 512          * Cylinder gas mix: Air, Nitrox or Trimix
 513          */
 514         hbox = gtk_hbox_new(FALSE, 3);
 515         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 516
 517         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 518         cylinder->o2 = widget;
 519         cylinder->gasmix_button = gtk_check_button_new();
 520         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 521                 cylinder->gasmix_button, FALSE, FALSE, 3);
 522         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 523
 524         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 525 }
 526
 527 static int edit_cylinder_dialog(int index, cylinder_t *cyl)
 528 {
 529         int success;
 530         GtkWidget *dialog, *vbox;
 531         struct cylinder_widget cylinder;
 532         struct dive *dive;
 533
 534         cylinder.index = index;
 535         cylinder.changed = 0;
 536
 537         dive = current_dive;
 538         if (!dive)
 539                 return 0;
 540         *cyl = dive->cylinder[index];
 541
 542         dialog = gtk_dialog_new_with_buttons("Cylinder",
 543                 GTK_WINDOW(main_window),
 544                 GTK_DIALOG_DESTROY_WITH_PARENT,
 545                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 546                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 547                 NULL);
 548
 549         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 550         cylinder_widget(vbox, &cylinder, cylinder_model);
 551
 552         show_cylinder(cyl, &cylinder);
 553
 554         gtk_widget_show_all(dialog);
 555         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 556         if (success) {
 557                 record_cylinder_changes(cyl, &cylinder);
 558                 dive->cylinder[index] = *cyl;
 559                 mark_divelist_changed(TRUE);
 560                 flush_divelist(dive);
 561         }
 562
 563         gtk_widget_destroy(dialog);
 564
 565         return success;
 566 }
 567
 568 static int get_model_index(GtkListStore *model, GtkTreeIter *iter)
 569 {
 570         int *p, index;
 571         GtkTreePath *path;
 572
 573         path = gtk_tree_model_get_path(GTK_TREE_MODEL(model), iter);
 574         p = gtk_tree_path_get_indices(path);
 575         index = p ? *p : 0;
 576         gtk_tree_path_free(path);
 577         return index;
 578 }
 579
 580 static void edit_cb(GtkButton *button, gpointer data)
 581 {
 582         int index;
 583         GtkTreeIter iter;
 584         GtkListStore *model = cylinder_list.model;
 585         GtkTreeSelection *selection;
 586         cylinder_t cyl;
 587
 588         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 589
 590         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 591         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 592                 return;
 593
 594         index = get_model_index(model, &iter);
 595         if (!edit_cylinder_dialog(index, &cyl))
 596                 return;
 597
 598         set_one_cylinder(index, &cyl, model, &iter);
 599         repaint_dive();
 600 }
 601
 602 static void add_cb(GtkButton *button, gpointer data)
 603 {
 604         int index = cylinder_list.max_index;
 605         GtkTreeIter iter;
 606         GtkListStore *model = cylinder_list.model;
 607         GtkTreeSelection *selection;
 608         cylinder_t cyl;
 609
 610         if (!edit_cylinder_dialog(index, &cyl))
 611                 return;
 612
 613         gtk_list_store_append(model, &iter);
 614         set_one_cylinder(index, &cyl, model, &iter);
 615
 616         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 617         gtk_tree_selection_select_iter(selection, &iter);
 618
 619         cylinder_list.max_index++;
 620         gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
 621 }
 622
 623 static void del_cb(GtkButton *button, gpointer data)
 624 {
 625         int index, nr;
 626         GtkTreeIter iter;
 627         GtkListStore *model = cylinder_list.model;
 628         GtkTreeSelection *selection;
 629         struct dive *dive;
 630         cylinder_t *cyl;
 631
 632         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 633
 634         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 635         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 636                 return;
 637
 638         index = get_model_index(model, &iter);
 639
 640         dive = current_dive;
 641         if (!dive)
 642                 return;
 643         cyl = dive->cylinder + index;
 644         nr = cylinder_list.max_index - index - 1;
 645
 646         gtk_list_store_remove(model, &iter);
 647
 648         cylinder_list.max_index--;
 649         memmove(cyl, cyl+1, nr*sizeof(*cyl));
 650         memset(cyl+nr, 0, sizeof(*cyl));
 651
 652         mark_divelist_changed(TRUE);
 653         flush_divelist(dive);
 654
 655         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 656         gtk_widget_set_sensitive(cylinder_list.del, 0);
 657         gtk_widget_set_sensitive(cylinder_list.add, 1);
 658 }
 659
 660 static GtkListStore *create_tank_size_model(void)
 661 {
 662         GtkListStore *model;
 663
 664         model = gtk_list_store_new(3,
 665                 G_TYPE_STRING,          /* Tank name */
 666                 G_TYPE_INT,             /* Tank size in mliter */
 667                 G_TYPE_INT,             /* Tank working pressure in mbar */
 668                 -1);
 669
 670         fill_tank_list(model);
 671         return model;
 672 }
 673
 674 static void size_data_func(GtkTreeViewColumn *col,
 675                            GtkCellRenderer *renderer,
 676                            GtkTreeModel *model,
 677                            GtkTreeIter *iter,
 678                            gpointer data)
 679 {
 680         int ml, mbar;
 681         double size, pressure;
 682         char buffer[10];
 683
 684         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 685         convert_volume_pressure(ml, mbar, &size, &pressure);
 686         if (size)
 687                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 688         else
 689                 strcpy(buffer, "unkn");
 690         g_object_set(renderer, "text", buffer, NULL);
 691 }
 692
 693 static void pressure_data_func(GtkTreeViewColumn *col,
 694                            GtkCellRenderer *renderer,
 695                            GtkTreeModel *model,
 696                            GtkTreeIter *iter,
 697                            gpointer data)
 698 {
 699         int index = (long)data;
 700         int mbar, decimals;
 701         double pressure;
 702         char buffer[10];
 703
 704         gtk_tree_model_get(model, iter, index, &mbar, -1);
 705         decimals = convert_pressure(mbar, &pressure);
 706         if (mbar)
 707                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 708         else
 709                 *buffer = 0;
 710         g_object_set(renderer, "text", buffer, NULL);
 711 }
 712
 713 static void percentage_data_func(GtkTreeViewColumn *col,
 714                            GtkCellRenderer *renderer,
 715                            GtkTreeModel *model,
 716                            GtkTreeIter *iter,
 717                            gpointer data)
 718 {
 719         int index = (long)data;
 720         int permille;
 721         char buffer[10];
 722
 723         gtk_tree_model_get(model, iter, index, &permille, -1);
 724         if (permille)
 725                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 726         else
 727                 *buffer = 0;
 728         g_object_set(renderer, "text", buffer, NULL);
 729 }
 730
 731 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 732 {
 733         GtkTreeIter iter;
 734         int selected;
 735
 736         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 737         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 738         gtk_widget_set_sensitive(cylinder_list.del, selected);
 739 }
 740
 741 static void row_activated_cb(GtkTreeView *tree_view,
 742                         GtkTreePath *path,
 743                         GtkTreeViewColumn *column,
 744                         GtkTreeModel *model)
 745 {
 746         edit_cb(NULL, NULL);
 747 }
 748
 749 static GtkWidget *cylinder_list_create(void)
 750 {
 751         GtkWidget *tree_view;
 752         GtkTreeSelection *selection;
 753         GtkListStore *model;
 754
 755         model = gtk_list_store_new(CYL_COLUMNS,
 756                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 757                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 758                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 759                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 760                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 761                 G_TYPE_INT,             /* CYL_O2: permille */
 762                 G_TYPE_INT              /* CYL_HE: permille */
 763                 );
 764         cylinder_list.model = model;
 765         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 766         g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), model);
 767
 768         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 769         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 770         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 771
 772         g_object_set(G_OBJECT(tree_view), "headers-visible", TRUE,
 773                                           "enable-grid-lines", GTK_TREE_VIEW_GRID_LINES_BOTH,
 774                                           NULL);
 775
 776         cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
 777         cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
 778         cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 779         cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 780         cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 781         cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 782         cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 783         return tree_view;
 784 }
 785
 786 GtkWidget *equipment_widget(void)
 787 {
 788         GtkWidget *vbox, *hbox, *frame, *framebox;
 789         GtkWidget *add, *del, *edit;
 790
 791         vbox = gtk_vbox_new(FALSE, 3);
 792
 793         /*
 794          * We create the cylinder size model at startup, since
 795          * we're going to share it across all cylinders and all
 796          * dives. So if you add a new cylinder type in one dive,
 797          * it will show up when you edit the cylinder types for
 798          * another dive.
 799          */
 800         cylinder_model = create_tank_size_model();
 801
 802         cylinder_list.tree_view = cylinder_list_create();
 803
 804         hbox = gtk_hbox_new(FALSE, 3);
 805         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 806
 807         frame = gtk_frame_new("Cylinders");
 808         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 809
 810         framebox = gtk_vbox_new(FALSE, 3);
 811         gtk_container_add(GTK_CONTAINER(frame), framebox);
 812
 813         hbox = gtk_hbox_new(FALSE, 3);
 814         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 815
 816         gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
 817
 818         hbox = gtk_hbox_new(TRUE, 3);
 819         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 820
 821         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 822         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 823         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 824         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 825         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 826         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 827
 828         cylinder_list.edit = edit;
 829         cylinder_list.add = add;
 830         cylinder_list.del = del;
 831
 832         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
 833         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
 834         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
 835
 836         return vbox;
 837 }