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 /* we want bar - so let's not use our unit functions */
  53 static int convert_pressure(int mbar, double *p)
  54 {
  55         int decimals = 1;
  56         double pressure;
  57
  58         if (output_units.pressure == PSI) {
  59                 pressure = mbar_to_PSI(mbar);
  60                 decimals = 0;
  61         } else {
  62                 pressure = mbar / 1000.0;
  63         }
  64
  65         *p = pressure;
  66         return decimals;
  67 }
  68
  69 static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
  70 {
  71         int decimals = 1;
  72         double volume, pressure;
  73
  74         volume = ml / 1000.0;
  75         if (mbar) {
  76                 if (output_units.volume == CUFT) {
  77                         volume = ml_to_cuft(ml);
  78                         volume *= bar_to_atm(mbar / 1000.0);
  79                 }
  80
  81                 if (output_units.pressure == PSI) {
  82                         pressure = mbar_to_PSI(mbar);
  83                         decimals = 0;
  84                 } else
  85                         pressure = mbar / 1000.0;
  86         }
  87         *v = volume;
  88         *p = pressure;
  89         return decimals;
  90 }
  91
  92 static void set_cylinder_type_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar)
  93 {
  94         double volume, pressure;
  95
  96         convert_volume_pressure(ml, mbar, &volume, &pressure);
  97         gtk_spin_button_set_value(cylinder->size, volume);
  98         gtk_spin_button_set_value(cylinder->pressure, pressure);
  99 }
 100
 101 static void set_cylinder_pressure_spinbuttons(struct cylinder_widget *cylinder, int start, int end)
 102 {
 103         double pressure;
 104
 105         convert_pressure(start, &pressure);
 106         gtk_spin_button_set_value(cylinder->start, pressure);
 107         convert_pressure(end, &pressure);
 108         gtk_spin_button_set_value(cylinder->end, pressure);
 109 }
 110
 111 /*
 112  * The gtk_tree_model_foreach() interface is bad. It could have
 113  * returned whether the callback ever returned true
 114  */
 115 static GtkTreeIter *found_match = NULL;
 116 static GtkTreeIter match_iter;
 117
 118 static gboolean match_cylinder(GtkTreeModel *model,
 119                                 GtkTreePath *path,
 120                                 GtkTreeIter *iter,
 121                                 gpointer data)
 122 {
 123         int match;
 124         gchar *name;
 125         const char *desc = data;
 126
 127         gtk_tree_model_get(model, iter, 0, &name, -1);
 128         match = !strcmp(desc, name);
 129         g_free(name);
 130         if (match) {
 131                 match_iter = *iter;
 132                 found_match = &match_iter;
 133         }
 134         return match;
 135 }
 136
 137 static int get_active_cylinder(GtkComboBox *combo_box, GtkTreeIter *iter)
 138 {
 139         char *desc;
 140
 141         if (gtk_combo_box_get_active_iter(combo_box, iter))
 142                 return TRUE;
 143
 144         desc = gtk_combo_box_get_active_text(combo_box);
 145
 146         found_match = NULL;
 147         gtk_tree_model_foreach(GTK_TREE_MODEL(cylinder_model), match_cylinder, (void *)desc);
 148
 149         g_free(desc);
 150         if (!found_match)
 151                 return FALSE;
 152
 153         *iter = *found_match;
 154         gtk_combo_box_set_active_iter(combo_box, iter);
 155         return TRUE;
 156 }
 157
 158 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
 159 {
 160         GtkTreeIter iter;
 161         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 162         int ml, mbar;
 163         struct cylinder_widget *cylinder = data;
 164         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 165
 166         /* Did the user set it to some non-standard value? */
 167         if (!get_active_cylinder(combo_box, &iter)) {
 168                 cylinder->changed = 1;
 169                 return;
 170         }
 171
 172         /*
 173          * We get "change" signal callbacks just because we set
 174          * the description by hand. Whatever. So ignore them if
 175          * they are no-ops.
 176          */
 177         if (!cylinder->changed && cyl->type.description) {
 178                 int same;
 179                 char *desc = gtk_combo_box_get_active_text(combo_box);
 180
 181                 same = !strcmp(desc, cyl->type.description);
 182                 g_free(desc);
 183                 if (same)
 184                         return;
 185         }
 186         cylinder->changed = 1;
 187
 188         gtk_tree_model_get(model, &iter,
 189                 CYL_SIZE, &ml,
 190                 CYL_WORKP, &mbar,
 191                 -1);
 192
 193         set_cylinder_type_spinbuttons(cylinder, ml, mbar);
 194 }
 195
 196 static GtkTreeIter *add_cylinder_type(const char *desc, int ml, int mbar, GtkTreeIter *iter)
 197 {
 198         GtkTreeModel *model;
 199
 200         /* Don't even bother adding stuff without a size */
 201         if (!ml)
 202                 return NULL;
 203
 204         found_match = NULL;
 205         model = GTK_TREE_MODEL(cylinder_model);
 206         gtk_tree_model_foreach(model, match_cylinder, (void *)desc);
 207
 208         if (!found_match) {
 209                 GtkListStore *store = GTK_LIST_STORE(model);
 210
 211                 gtk_list_store_append(store, iter);
 212                 gtk_list_store_set(store, iter,
 213                         0, desc,
 214                         1, ml,
 215                         2, mbar,
 216                         -1);
 217                 return iter;
 218         }
 219         return found_match;
 220 }
 221
 222 /*
 223  * When adding a dive, we'll add all the pre-existing cylinder
 224  * information from that dive to our cylinder model.
 225  */
 226 void add_cylinder_description(cylinder_type_t *type)
 227 {
 228         GtkTreeIter iter;
 229         const char *desc;
 230         unsigned int size, workp;
 231
 232         desc = type->description;
 233         if (!desc)
 234                 return;
 235         size = type->size.mliter;
 236         workp = type->workingpressure.mbar;
 237         add_cylinder_type(desc, size, workp, &iter);
 238 }
 239
 240 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 241 {
 242         GtkTreeIter iter, *match;
 243
 244         cylinder->name = desc;
 245         match = add_cylinder_type(desc, ml, mbar, &iter);
 246         if (match)
 247                 gtk_combo_box_set_active_iter(cylinder->description, match);
 248 }
 249
 250 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 251 {
 252         const char *desc;
 253         int ml, mbar;
 254         double o2;
 255
 256         /* Don't show uninitialized cylinder widgets */
 257         if (!cylinder->description)
 258                 return;
 259
 260         desc = cyl->type.description;
 261         if (!desc)
 262                 desc = "";
 263         ml = cyl->type.size.mliter;
 264         mbar = cyl->type.workingpressure.mbar;
 265         add_cylinder(cylinder, desc, ml, mbar);
 266
 267         set_cylinder_type_spinbuttons(cylinder,
 268                 cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 269         set_cylinder_pressure_spinbuttons(cylinder,
 270                 cyl->start.mbar, cyl->end.mbar);
 271         o2 = cyl->gasmix.o2.permille / 10.0;
 272         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 273         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 274         if (!o2)
 275                 o2 = 21.0;
 276         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 277 }
 278
 279 static int cyl_nothing(cylinder_t *cyl)
 280 {
 281         return  !cyl->type.size.mliter &&
 282                 !cyl->type.workingpressure.mbar &&
 283                 !cyl->type.description &&
 284                 !cyl->gasmix.o2.permille &&
 285                 !cyl->gasmix.he.permille &&
 286                 !cyl->sample_start.mbar &&
 287                 !cyl->sample_end.mbar &&
 288                 !cyl->start.mbar &&
 289                 !cyl->end.mbar;
 290 }
 291
 292 static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 293 {
 294         unsigned int start, end;
 295
 296         start = cyl->start.mbar ? : cyl->sample_start.mbar;
 297         end = cyl->end.mbar ? : cyl->sample_end.mbar;
 298         gtk_list_store_set(model, iter,
 299                 CYL_DESC, cyl->type.description ? : "",
 300                 CYL_SIZE, cyl->type.size.mliter,
 301                 CYL_WORKP, cyl->type.workingpressure.mbar,
 302                 CYL_STARTP, start,
 303                 CYL_ENDP, end,
 304                 CYL_O2, cyl->gasmix.o2.permille,
 305                 CYL_HE, cyl->gasmix.he.permille,
 306                 -1);
 307 }
 308
 309 void show_dive_equipment(struct dive *dive)
 310 {
 311         int i, max;
 312         GtkTreeIter iter;
 313         GtkListStore *model;
 314
 315         model = cylinder_list.model;
 316         gtk_list_store_clear(model);
 317         max = MAX_CYLINDERS;
 318         do {
 319                 cylinder_t *cyl = &dive->cylinder[max-1];
 320
 321                 if (!cyl_nothing(cyl))
 322                         break;
 323         } while (--max);
 324
 325         cylinder_list.max_index = max;
 326
 327         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 328         gtk_widget_set_sensitive(cylinder_list.del, 0);
 329         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 330
 331         for (i = 0; i < max; i++) {
 332                 cylinder_t *cyl = dive->cylinder+i;
 333
 334                 gtk_list_store_append(model, &iter);
 335                 set_one_cylinder(i, cyl, model, &iter);
 336         }
 337 }
 338
 339 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 340 {
 341         GtkWidget *frame, *hbox, *button;
 342
 343         frame = gtk_frame_new(name);
 344         gtk_box_pack_start(GTK_BOX(vbox), frame, TRUE, FALSE, 0);
 345
 346         hbox = gtk_hbox_new(FALSE, 3);
 347         gtk_container_add(GTK_CONTAINER(frame), hbox);
 348
 349         button = gtk_spin_button_new_with_range(min, max, incr);
 350         gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, FALSE, 0);
 351
 352         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 353
 354         return button;
 355 }
 356
 357 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc,
 358                 double volume, double pressure, double start, double end, int o2)
 359 {
 360         int mbar, ml;
 361
 362         if (output_units.pressure == PSI) {
 363                 pressure = psi_to_bar(pressure);
 364                 start = psi_to_bar(start);
 365                 end = psi_to_bar(end);
 366         }
 367
 368         if (pressure && output_units.volume == CUFT) {
 369                 volume = cuft_to_l(volume);
 370                 volume /= bar_to_atm(pressure);
 371         }
 372
 373         ml = volume * 1000 + 0.5;
 374         mbar = pressure * 1000 + 0.5;
 375
 376         if (o2 < 211)
 377                 o2 = 0;
 378         cyl->type.description = desc;
 379         cyl->type.size.mliter = ml;
 380         cyl->type.workingpressure.mbar = mbar;
 381         cyl->start.mbar = start * 1000 + 0.5;
 382         cyl->end.mbar = end * 1000 + 0.5;
 383         cyl->gasmix.o2.permille = o2;
 384
 385         /*
 386          * Also, insert it into the model if it doesn't already exist
 387          */
 388         add_cylinder(cylinder, desc, ml, mbar);
 389 }
 390
 391 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 392 {
 393         const gchar *desc;
 394         GtkComboBox *box;
 395         double volume, pressure, start, end;
 396         int o2;
 397
 398         /* Ignore uninitialized cylinder widgets */
 399         box = cylinder->description;
 400         if (!box)
 401                 return;
 402
 403         desc = gtk_combo_box_get_active_text(box);
 404         volume = gtk_spin_button_get_value(cylinder->size);
 405         pressure = gtk_spin_button_get_value(cylinder->pressure);
 406         start = gtk_spin_button_get_value(cylinder->start);
 407         end = gtk_spin_button_get_value(cylinder->end);
 408         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 409         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 410                 o2 = 0;
 411         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, start, end, o2);
 412 }
 413
 414 void flush_dive_equipment_changes(struct dive *dive)
 415 {
 416         /* We do nothing: we require the "Ok" button press */
 417 }
 418
 419 /*
 420  * We hardcode the most common standard cylinders,
 421  * we should pick up any other names from the dive
 422  * logs directly.
 423  */
 424 static struct tank_info {
 425         const char *name;
 426         int size;       /* cuft if < 1000, otherwise mliter */
 427         int psi;        /* If zero, size is in mliter */
 428 } tank_info[100] = {
 429         /* Need an empty entry for the no-cylinder case */
 430         { "", 0, 0 },
 431
 432         /* Size-only metric cylinders */
 433         { "10.0 l", 10000 },
 434         { "11.1 l", 11100 },
 435
 436         /* Most common AL cylinders */
 437         { "AL50",   50, 3000 },
 438         { "AL63",   63, 3000 },
 439         { "AL72",   72, 3000 },
 440         { "AL80",   80, 3000 },
 441         { "AL100", 100, 3300 },
 442
 443         /* Somewhat common LP steel cylinders */
 444         { "LP85",   85, 2640 },
 445         { "LP95",   95, 2640 },
 446         { "LP108", 108, 2640 },
 447         { "LP121", 121, 2640 },
 448
 449         /* Somewhat common HP steel cylinders */
 450         { "HP65",   65, 3442 },
 451         { "HP80",   80, 3442 },
 452         { "HP100", 100, 3442 },
 453         { "HP119", 119, 3442 },
 454         { "HP130", 130, 3442 },
 455
 456         /* We'll fill in more from the dive log dynamically */
 457         { NULL, }
 458 };
 459
 460 static void fill_tank_list(GtkListStore *store)
 461 {
 462         GtkTreeIter iter;
 463         struct tank_info *info = tank_info;
 464
 465         while (info->name) {
 466                 int size = info->size;
 467                 int psi = info->psi;
 468                 int mbar = 0, ml = size;
 469
 470                 /* Is it in cuft and psi? */
 471                 if (psi) {
 472                         double bar = psi_to_bar(psi);
 473                         double airvolume = cuft_to_l(size) * 1000.0;
 474                         double atm = bar_to_atm(bar);
 475
 476                         ml = airvolume / atm + 0.5;
 477                         mbar = bar*1000 + 0.5;
 478                 }
 479
 480                 gtk_list_store_append(store, &iter);
 481                 gtk_list_store_set(store, &iter,
 482                         0, info->name,
 483                         1, ml,
 484                         2, mbar,
 485                         -1);
 486                 info++;
 487         }
 488 }
 489
 490 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 491 {
 492         struct cylinder_widget *cylinder = data;
 493         int state;
 494
 495         state = gtk_toggle_button_get_active(button);
 496         gtk_widget_set_sensitive(cylinder->o2, state);
 497 }
 498
 499 static gboolean completion_cb(GtkEntryCompletion *widget, GtkTreeModel *model, GtkTreeIter *iter, struct cylinder_widget *cylinder)
 500 {
 501         const char *desc;
 502         unsigned int ml, mbar;
 503
 504         gtk_tree_model_get(model, iter, CYL_DESC, &desc, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 505         add_cylinder(cylinder, desc, ml, mbar);
 506         return TRUE;
 507 }
 508
 509 static void cylinder_activate_cb(GtkComboBox *combo_box, gpointer data)
 510 {
 511         struct cylinder_widget *cylinder = data;
 512         cylinder_cb(cylinder->description, data);
 513 }
 514
 515 static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
 516 {
 517         GtkWidget *frame, *hbox;
 518         GtkEntry *entry;
 519         GtkEntryCompletion *completion;
 520         GtkWidget *widget;
 521
 522         /*
 523          * Cylinder type: description, size and
 524          * working pressure
 525          */
 526         frame = gtk_frame_new("Cylinder");
 527
 528         hbox = gtk_hbox_new(FALSE, 3);
 529         gtk_container_add(GTK_CONTAINER(frame), hbox);
 530
 531         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 532         gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
 533
 534         cylinder->description = GTK_COMBO_BOX(widget);
 535         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 536
 537         entry = GTK_ENTRY(GTK_BIN(widget)->child);
 538         g_signal_connect(entry, "activate", G_CALLBACK(cylinder_activate_cb), cylinder);
 539
 540         completion = gtk_entry_completion_new();
 541         gtk_entry_completion_set_text_column(completion, 0);
 542         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(model));
 543         g_signal_connect(completion, "match-selected", G_CALLBACK(completion_cb), cylinder);
 544         gtk_entry_set_completion(entry, completion);
 545
 546         hbox = gtk_hbox_new(FALSE, 3);
 547         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 548         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 549
 550         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 551         cylinder->size = GTK_SPIN_BUTTON(widget);
 552
 553         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 554         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 555
 556         /*
 557          * Cylinder start/end pressures
 558          */
 559         hbox = gtk_hbox_new(FALSE, 3);
 560         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 561
 562         widget = create_spinbutton(hbox, "Start Pressure", 0, 5000, 1);
 563         cylinder->start = GTK_SPIN_BUTTON(widget);
 564
 565         widget = create_spinbutton(hbox, "End Pressure", 0, 5000, 1);
 566         cylinder->end = GTK_SPIN_BUTTON(widget);
 567
 568         /*
 569          * Cylinder gas mix: Air, Nitrox or Trimix
 570          */
 571         hbox = gtk_hbox_new(FALSE, 3);
 572         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 573
 574         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 575         cylinder->o2 = widget;
 576         cylinder->gasmix_button = gtk_check_button_new();
 577         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 578                 cylinder->gasmix_button, FALSE, FALSE, 3);
 579         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 580
 581         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 582 }
 583
 584 static int edit_cylinder_dialog(int index, cylinder_t *cyl)
 585 {
 586         int success;
 587         GtkWidget *dialog, *vbox;
 588         struct cylinder_widget cylinder;
 589         struct dive *dive;
 590
 591         cylinder.index = index;
 592         cylinder.changed = 0;
 593
 594         dive = current_dive;
 595         if (!dive)
 596                 return 0;
 597         *cyl = dive->cylinder[index];
 598
 599         dialog = gtk_dialog_new_with_buttons("Cylinder",
 600                 GTK_WINDOW(main_window),
 601                 GTK_DIALOG_DESTROY_WITH_PARENT,
 602                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 603                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 604                 NULL);
 605
 606         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 607         cylinder_widget(vbox, &cylinder, cylinder_model);
 608
 609         show_cylinder(cyl, &cylinder);
 610
 611         gtk_widget_show_all(dialog);
 612         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 613         if (success) {
 614                 record_cylinder_changes(cyl, &cylinder);
 615                 dive->cylinder[index] = *cyl;
 616                 mark_divelist_changed(TRUE);
 617                 flush_divelist(dive);
 618         }
 619
 620         gtk_widget_destroy(dialog);
 621
 622         return success;
 623 }
 624
 625 static int get_model_index(GtkListStore *model, GtkTreeIter *iter)
 626 {
 627         int *p, index;
 628         GtkTreePath *path;
 629
 630         path = gtk_tree_model_get_path(GTK_TREE_MODEL(model), iter);
 631         p = gtk_tree_path_get_indices(path);
 632         index = p ? *p : 0;
 633         gtk_tree_path_free(path);
 634         return index;
 635 }
 636
 637 static void edit_cb(GtkButton *button, gpointer data)
 638 {
 639         int index;
 640         GtkTreeIter iter;
 641         GtkListStore *model = cylinder_list.model;
 642         GtkTreeSelection *selection;
 643         cylinder_t cyl;
 644
 645         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 646
 647         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 648         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 649                 return;
 650
 651         index = get_model_index(model, &iter);
 652         if (!edit_cylinder_dialog(index, &cyl))
 653                 return;
 654
 655         set_one_cylinder(index, &cyl, model, &iter);
 656         repaint_dive();
 657 }
 658
 659 static void add_cb(GtkButton *button, gpointer data)
 660 {
 661         int index = cylinder_list.max_index;
 662         GtkTreeIter iter;
 663         GtkListStore *model = cylinder_list.model;
 664         GtkTreeSelection *selection;
 665         cylinder_t cyl;
 666
 667         if (!edit_cylinder_dialog(index, &cyl))
 668                 return;
 669
 670         gtk_list_store_append(model, &iter);
 671         set_one_cylinder(index, &cyl, model, &iter);
 672
 673         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 674         gtk_tree_selection_select_iter(selection, &iter);
 675
 676         cylinder_list.max_index++;
 677         gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
 678 }
 679
 680 static void del_cb(GtkButton *button, gpointer data)
 681 {
 682         int index, nr;
 683         GtkTreeIter iter;
 684         GtkListStore *model = cylinder_list.model;
 685         GtkTreeSelection *selection;
 686         struct dive *dive;
 687         cylinder_t *cyl;
 688
 689         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
 690
 691         /* Nothing selected? This shouldn't happen, since the button should be inactive */
 692         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 693                 return;
 694
 695         index = get_model_index(model, &iter);
 696
 697         dive = current_dive;
 698         if (!dive)
 699                 return;
 700         cyl = dive->cylinder + index;
 701         nr = cylinder_list.max_index - index - 1;
 702
 703         gtk_list_store_remove(model, &iter);
 704
 705         cylinder_list.max_index--;
 706         memmove(cyl, cyl+1, nr*sizeof(*cyl));
 707         memset(cyl+nr, 0, sizeof(*cyl));
 708
 709         mark_divelist_changed(TRUE);
 710         flush_divelist(dive);
 711
 712         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 713         gtk_widget_set_sensitive(cylinder_list.del, 0);
 714         gtk_widget_set_sensitive(cylinder_list.add, 1);
 715 }
 716
 717 static GtkListStore *create_tank_size_model(void)
 718 {
 719         GtkListStore *model;
 720
 721         model = gtk_list_store_new(3,
 722                 G_TYPE_STRING,          /* Tank name */
 723                 G_TYPE_INT,             /* Tank size in mliter */
 724                 G_TYPE_INT,             /* Tank working pressure in mbar */
 725                 -1);
 726
 727         fill_tank_list(model);
 728         return model;
 729 }
 730
 731 static void size_data_func(GtkTreeViewColumn *col,
 732                            GtkCellRenderer *renderer,
 733                            GtkTreeModel *model,
 734                            GtkTreeIter *iter,
 735                            gpointer data)
 736 {
 737         int ml, mbar;
 738         double size, pressure;
 739         char buffer[10];
 740
 741         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 742         convert_volume_pressure(ml, mbar, &size, &pressure);
 743         if (size)
 744                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 745         else
 746                 strcpy(buffer, "unkn");
 747         g_object_set(renderer, "text", buffer, NULL);
 748 }
 749
 750 static void pressure_data_func(GtkTreeViewColumn *col,
 751                            GtkCellRenderer *renderer,
 752                            GtkTreeModel *model,
 753                            GtkTreeIter *iter,
 754                            gpointer data)
 755 {
 756         int index = (long)data;
 757         int mbar, decimals;
 758         double pressure;
 759         char buffer[10];
 760
 761         gtk_tree_model_get(model, iter, index, &mbar, -1);
 762         decimals = convert_pressure(mbar, &pressure);
 763         if (mbar)
 764                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 765         else
 766                 *buffer = 0;
 767         g_object_set(renderer, "text", buffer, NULL);
 768 }
 769
 770 static void percentage_data_func(GtkTreeViewColumn *col,
 771                            GtkCellRenderer *renderer,
 772                            GtkTreeModel *model,
 773                            GtkTreeIter *iter,
 774                            gpointer data)
 775 {
 776         int index = (long)data;
 777         int permille;
 778         char buffer[10];
 779
 780         gtk_tree_model_get(model, iter, index, &permille, -1);
 781         if (permille)
 782                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 783         else
 784                 *buffer = 0;
 785         g_object_set(renderer, "text", buffer, NULL);
 786 }
 787
 788 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 789 {
 790         GtkTreeIter iter;
 791         int selected;
 792
 793         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 794         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 795         gtk_widget_set_sensitive(cylinder_list.del, selected);
 796 }
 797
 798 static void row_activated_cb(GtkTreeView *tree_view,
 799                         GtkTreePath *path,
 800                         GtkTreeViewColumn *column,
 801                         GtkTreeModel *model)
 802 {
 803         edit_cb(NULL, NULL);
 804 }
 805
 806 static GtkWidget *cylinder_list_create(void)
 807 {
 808         GtkWidget *tree_view;
 809         GtkTreeSelection *selection;
 810         GtkListStore *model;
 811
 812         model = gtk_list_store_new(CYL_COLUMNS,
 813                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 814                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 815                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 816                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 817                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 818                 G_TYPE_INT,             /* CYL_O2: permille */
 819                 G_TYPE_INT              /* CYL_HE: permille */
 820                 );
 821         cylinder_list.model = model;
 822         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 823         g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), model);
 824
 825         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 826         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 827         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 828
 829         g_object_set(G_OBJECT(tree_view), "headers-visible", TRUE,
 830                                           "enable-grid-lines", GTK_TREE_VIEW_GRID_LINES_BOTH,
 831                                           NULL);
 832
 833         cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
 834         cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
 835         cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 836         cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 837         cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 838         cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 839         cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 840         return tree_view;
 841 }
 842
 843 GtkWidget *equipment_widget(void)
 844 {
 845         GtkWidget *vbox, *hbox, *frame, *framebox;
 846         GtkWidget *add, *del, *edit;
 847
 848         vbox = gtk_vbox_new(FALSE, 3);
 849
 850         /*
 851          * We create the cylinder size model at startup, since
 852          * we're going to share it across all cylinders and all
 853          * dives. So if you add a new cylinder type in one dive,
 854          * it will show up when you edit the cylinder types for
 855          * another dive.
 856          */
 857         cylinder_model = create_tank_size_model();
 858
 859         cylinder_list.tree_view = cylinder_list_create();
 860
 861         hbox = gtk_hbox_new(FALSE, 3);
 862         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 863
 864         frame = gtk_frame_new("Cylinders");
 865         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 866
 867         framebox = gtk_vbox_new(FALSE, 3);
 868         gtk_container_add(GTK_CONTAINER(frame), framebox);
 869
 870         hbox = gtk_hbox_new(FALSE, 3);
 871         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 872
 873         gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
 874
 875         hbox = gtk_hbox_new(TRUE, 3);
 876         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 877
 878         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 879         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 880         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 881         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 882         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 883         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 884
 885         cylinder_list.edit = edit;
 886         cylinder_list.add = add;
 887         cylinder_list.del = del;
 888
 889         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
 890         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
 891         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
 892
 893         return vbox;
 894 }