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