equipment.c

   1 /* equipment.c */
   2 /* creates the UI for the equipment page -
   3  * controlled through the following interfaces:
   4  *
   5  * void show_dive_equipment(struct dive *dive)
   6  * void flush_dive_equipment_changes(struct dive *dive)
   7  *
   8  * called from gtk-ui:
   9  * GtkWidget *equipment_widget(void)
  10  */
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14 #include <stdarg.h>
  15 #include <time.h>
  16
  17 #include "dive.h"
  18 #include "display.h"
  19 #include "display-gtk.h"
  20 #include "divelist.h"
  21
  22 GtkListStore *cylinder_model;
  23
  24 enum {
  25         CYL_INDEX,
  26         CYL_DESC,
  27         CYL_SIZE,
  28         CYL_WORKP,
  29         CYL_STARTP,
  30         CYL_ENDP,
  31         CYL_O2,
  32         CYL_HE,
  33         CYL_COLUMNS
  34 };
  35
  36 static struct {
  37         GtkListStore *model;
  38         GtkWidget *tree_view;
  39         GtkWidget *edit, *add, *del;
  40         GtkTreeViewColumn *desc, *size, *workp, *startp, *endp, *o2, *he;
  41 } cylinder_list;
  42
  43 struct cylinder_widget {
  44         int index, changed;
  45         const char *name;
  46         GtkWidget *hbox;
  47         GtkComboBox *description;
  48         GtkSpinButton *size, *pressure;
  49         GtkWidget *o2, *gasmix_button;
  50 };
  51
  52 static struct cylinder_widget gtk_cylinder[MAX_CYLINDERS];
  53
  54 static int convert_pressure(int mbar, double *p)
  55 {
  56         int decimals = 1;
  57         double pressure;
  58
  59         pressure = mbar / 1000.0;
  60         if (mbar) {
  61                 if (output_units.pressure == PSI) {
  62                         pressure *= 14.5037738; /* Bar to PSI */
  63                         decimals = 0;
  64                 }
  65         }
  66         *p = pressure;
  67         return decimals;
  68 }
  69
  70 static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
  71 {
  72         int decimals = 1;
  73         double volume, pressure;
  74
  75         volume = ml / 1000.0;
  76         pressure = mbar / 1000.0;
  77         if (mbar) {
  78                 if (output_units.volume == CUFT) {
  79                         volume /= 28.3168466;   /* Liters to cuft */
  80                         volume *= pressure / 1.01325;
  81                 }
  82                 if (output_units.pressure == PSI) {
  83                         pressure *= 14.5037738; /* Bar to PSI */
  84                         decimals = 0;
  85                 }
  86         }
  87         *v = volume;
  88         *p = pressure;
  89         return decimals;
  90 }
  91
  92 static void set_cylinder_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 cylinder_cb(GtkComboBox *combo_box, gpointer data)
 102 {
 103         GtkTreeIter iter;
 104         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
 105         GValue value1 = {0, }, value2 = {0,};
 106         struct cylinder_widget *cylinder = data;
 107         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
 108
 109         /* Did the user set it to some non-standard value? */
 110         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
 111                 cylinder->changed = 1;
 112                 return;
 113         }
 114
 115         /*
 116          * We get "change" signal callbacks just because we set
 117          * the description by hand. Whatever. So ignore them if
 118          * they are no-ops.
 119          */
 120         if (!cylinder->changed && cyl->type.description) {
 121                 int same;
 122                 char *desc = gtk_combo_box_get_active_text(combo_box);
 123
 124                 same = !strcmp(desc, cyl->type.description);
 125                 g_free(desc);
 126                 if (same)
 127                         return;
 128         }
 129         cylinder->changed = 1;
 130
 131         gtk_tree_model_get_value(model, &iter, 1, &value1);
 132         gtk_tree_model_get_value(model, &iter, 2, &value2);
 133
 134         set_cylinder_spinbuttons(cylinder, g_value_get_int(&value1), g_value_get_int(&value2));
 135 }
 136
 137 /*
 138  * The gtk_tree_model_foreach() interface is bad. It could have
 139  * returned whether the callback ever returned true
 140  */
 141 static int found_match = 0;
 142
 143 static gboolean match_cylinder(GtkTreeModel *model,
 144                                 GtkTreePath *path,
 145                                 GtkTreeIter *iter,
 146                                 gpointer data)
 147 {
 148         const char *name;
 149         struct cylinder_widget *cylinder = data;
 150         GValue value = {0, };
 151
 152         gtk_tree_model_get_value(model, iter, 0, &value);
 153         name = g_value_get_string(&value);
 154         if (strcmp(cylinder->name, name))
 155                 return FALSE;
 156         gtk_combo_box_set_active_iter(cylinder->description, iter);
 157         found_match = 1;
 158         return TRUE;
 159 }
 160
 161 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 162 {
 163         GtkTreeModel *model;
 164
 165         found_match = 0;
 166         model = gtk_combo_box_get_model(cylinder->description);
 167         cylinder->name = desc;
 168         gtk_tree_model_foreach(model, match_cylinder, cylinder);
 169
 170         if (!found_match) {
 171                 GtkListStore *store = GTK_LIST_STORE(model);
 172                 GtkTreeIter iter;
 173
 174                 gtk_list_store_append(store, &iter);
 175                 gtk_list_store_set(store, &iter,
 176                         0, desc,
 177                         1, ml,
 178                         2, mbar,
 179                         -1);
 180                 gtk_combo_box_set_active_iter(cylinder->description, &iter);
 181         }
 182 }
 183
 184 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 185 {
 186         const char *desc;
 187         int ml, mbar;
 188         double o2;
 189
 190         /* Don't show uninitialized cylinder widgets */
 191         if (!cylinder->description)
 192                 return;
 193
 194         desc = cyl->type.description;
 195         if (!desc)
 196                 desc = "";
 197         ml = cyl->type.size.mliter;
 198         mbar = cyl->type.workingpressure.mbar;
 199         add_cylinder(cylinder, desc, ml, mbar);
 200
 201         set_cylinder_spinbuttons(cylinder, cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 202         o2 = cyl->gasmix.o2.permille / 10.0;
 203         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 204         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 205         if (!o2)
 206                 o2 = 21.0;
 207         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 208 }
 209
 210 static int cyl_nothing(cylinder_t *cyl)
 211 {
 212         return  !cyl->type.size.mliter &&
 213                 !cyl->type.workingpressure.mbar &&
 214                 !cyl->type.description &&
 215                 !cyl->gasmix.o2.permille &&
 216                 !cyl->gasmix.he.permille &&
 217                 !cyl->start.mbar &&
 218                 !cyl->end.mbar;
 219 }
 220
 221 void show_dive_equipment(struct dive *dive)
 222 {
 223         int i, max;
 224         GtkTreeIter iter;
 225         GtkListStore *model;
 226
 227         model = cylinder_list.model;
 228         gtk_list_store_clear(model);
 229         max = MAX_CYLINDERS;
 230         do {
 231                 cylinder_t *cyl = &dive->cylinder[max-1];
 232
 233                 if (!cyl_nothing(cyl))
 234                         break;
 235         } while (--max);
 236
 237         gtk_widget_set_sensitive(cylinder_list.edit, 0);
 238         gtk_widget_set_sensitive(cylinder_list.del, 0);
 239         gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
 240
 241         for (i = 0; i < max; i++) {
 242                 cylinder_t *cyl = dive->cylinder+i;
 243
 244                 gtk_list_store_append(model, &iter);
 245                 gtk_list_store_set(model, &iter,
 246                         CYL_INDEX, i,
 247                         CYL_DESC, cyl->type.description ? : "",
 248                         CYL_SIZE, cyl->type.size.mliter,
 249                         CYL_WORKP, cyl->type.workingpressure.mbar,
 250                         CYL_STARTP, cyl->start.mbar,
 251                         CYL_ENDP, cyl->end.mbar,
 252                         CYL_O2, cyl->gasmix.o2.permille,
 253                         CYL_HE, cyl->gasmix.he.permille,
 254                         -1);
 255         }
 256 }
 257
 258 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 259 {
 260         GtkWidget *frame, *hbox, *button;
 261
 262         frame = gtk_frame_new(name);
 263         gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, TRUE, 0);
 264
 265         hbox = gtk_hbox_new(FALSE, 3);
 266         gtk_container_add(GTK_CONTAINER(frame), hbox);
 267
 268         button = gtk_spin_button_new_with_range(min, max, incr);
 269         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 0);
 270
 271         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 272
 273         return button;
 274 }
 275
 276 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 277 {
 278         int mbar, ml;
 279
 280         if (output_units.pressure == PSI)
 281                 pressure /= 14.5037738;
 282
 283         if (pressure && output_units.volume == CUFT) {
 284                 volume *= 28.3168466;   /* CUFT to liter */
 285                 volume /= pressure / 1.01325;
 286         }
 287
 288         ml = volume * 1000 + 0.5;
 289         mbar = pressure * 1000 + 0.5;
 290
 291         if (o2 < 211)
 292                 o2 = 0;
 293         cyl->type.description = desc;
 294         cyl->type.size.mliter = ml;
 295         cyl->type.workingpressure.mbar = mbar;
 296         cyl->gasmix.o2.permille = o2;
 297
 298         /*
 299          * Also, insert it into the model if it doesn't already exist
 300          */
 301         add_cylinder(cylinder, desc, ml, mbar);
 302 }
 303
 304 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 305 {
 306         const gchar *desc;
 307         GtkComboBox *box;
 308         double volume, pressure;
 309         int o2;
 310
 311         /* Ignore uninitialized cylinder widgets */
 312         box = cylinder->description;
 313         if (!box)
 314                 return;
 315
 316         desc = gtk_combo_box_get_active_text(box);
 317         volume = gtk_spin_button_get_value(cylinder->size);
 318         pressure = gtk_spin_button_get_value(cylinder->pressure);
 319         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 320         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 321                 o2 = 0;
 322         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, o2);
 323 }
 324
 325 void flush_dive_equipment_changes(struct dive *dive)
 326 {
 327         /* We do nothing: we require the "Ok" button press */
 328 }
 329
 330 static void apply_cb(GtkButton *button, gpointer data)
 331 {
 332         int i;
 333         struct dive *dive = current_dive;
 334
 335         if (!dive)
 336                 return;
 337
 338         for (i = 0; i < MAX_CYLINDERS; i++)
 339                 record_cylinder_changes(dive->cylinder+i, gtk_cylinder+i);
 340         mark_divelist_changed(TRUE);
 341         flush_divelist(dive);
 342 }
 343
 344 static void cancel_cb(GtkButton *button, gpointer data)
 345 {
 346         struct dive *dive = current_dive;
 347
 348         if (!dive)
 349                 return;
 350
 351         show_dive_equipment(current_dive);
 352 }
 353
 354 /*
 355  * We hardcode the most common standard cylinders,
 356  * we should pick up any other names from the dive
 357  * logs directly.
 358  */
 359 static struct tank_info {
 360         const char *name;
 361         int size;       /* cuft if < 1000, otherwise mliter */
 362         int psi;        /* If zero, size is in mliter */
 363 } tank_info[100] = {
 364         /* Need an empty entry for the no-cylinder case */
 365         { "", 0, 0 },
 366
 367         /* Size-only metric cylinders */
 368         { "10.0 l", 10000 },
 369         { "11.1 l", 11100 },
 370
 371         /* Most common AL cylinders */
 372         { "AL50",   50, 3000 },
 373         { "AL63",   63, 3000 },
 374         { "AL72",   72, 3000 },
 375         { "AL80",   80, 3000 },
 376         { "AL100", 100, 3300 },
 377
 378         /* Somewhat common LP steel cylinders */
 379         { "LP85",   85, 2640 },
 380         { "LP95",   95, 2640 },
 381         { "LP108", 108, 2640 },
 382         { "LP121", 121, 2640 },
 383
 384         /* Somewhat common HP steel cylinders */
 385         { "HP65",   65, 3442 },
 386         { "HP80",   80, 3442 },
 387         { "HP100", 100, 3442 },
 388         { "HP119", 119, 3442 },
 389         { "HP130", 130, 3442 },
 390
 391         /* We'll fill in more from the dive log dynamically */
 392         { NULL, }
 393 };
 394
 395 static void fill_tank_list(GtkListStore *store)
 396 {
 397         GtkTreeIter iter;
 398         struct tank_info *info = tank_info;
 399
 400         while (info->name) {
 401                 int size = info->size;
 402                 int psi = info->psi;
 403                 int mbar = 0, ml = size;
 404
 405                 /* Is it in cuft and psi? */
 406                 if (psi) {
 407                         double bar = 0.0689475729 * psi;
 408                         double airvolume = 28316.8466 * size;
 409                         double atm = bar / 1.01325;
 410
 411                         ml = airvolume / atm + 0.5;
 412                         mbar = bar*1000 + 0.5;
 413                 }
 414
 415                 gtk_list_store_append(store, &iter);
 416                 gtk_list_store_set(store, &iter,
 417                         0, info->name,
 418                         1, ml,
 419                         2, mbar,
 420                         -1);
 421                 info++;
 422         }
 423 }
 424
 425 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 426 {
 427         struct cylinder_widget *cylinder = data;
 428         int state;
 429
 430         state = gtk_toggle_button_get_active(button);
 431         gtk_widget_set_sensitive(cylinder->o2, state);
 432 }
 433
 434 static void cylinder_widget(int nr, GtkListStore *model)
 435 {
 436         struct cylinder_widget *cylinder;
 437         GtkWidget *frame, *hbox, *hbox2;
 438         GtkWidget *widget;
 439         char buffer[80];
 440
 441         cylinder = gtk_cylinder + nr;
 442         cylinder->index = nr;
 443
 444         hbox = gtk_hbox_new(FALSE, 3);
 445         cylinder->hbox = hbox;
 446
 447         snprintf(buffer, sizeof(buffer), "Cylinder %d", nr+1);
 448         frame = gtk_frame_new(buffer);
 449         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 450
 451         hbox2 = gtk_hbox_new(FALSE, 3);
 452         gtk_container_add(GTK_CONTAINER(frame), hbox2);
 453
 454         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 455         gtk_box_pack_start(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
 456
 457         cylinder->description = GTK_COMBO_BOX(widget);
 458         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 459
 460         widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
 461         cylinder->size = GTK_SPIN_BUTTON(widget);
 462
 463         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 464         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 465
 466         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 467         cylinder->o2 = widget;
 468         cylinder->gasmix_button = gtk_check_button_new();
 469         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 470                 cylinder->gasmix_button, FALSE, FALSE, 3);
 471         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 472
 473         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 474 }
 475
 476 static void edit_cb(GtkButton *button, gpointer data)
 477 {
 478 }
 479
 480 static void add_cb(GtkButton *button, gpointer data)
 481 {
 482 }
 483
 484 static void del_cb(GtkButton *button, gpointer data)
 485 {
 486 }
 487
 488 static GtkListStore *create_tank_size_model(void)
 489 {
 490         GtkListStore *model;
 491
 492         model = gtk_list_store_new(3,
 493                 G_TYPE_STRING,          /* Tank name */
 494                 G_TYPE_INT,             /* Tank size in mliter */
 495                 G_TYPE_INT,             /* Tank working pressure in mbar */
 496                 -1);
 497
 498         fill_tank_list(model);
 499         return model;
 500 }
 501
 502 static void size_data_func(GtkTreeViewColumn *col,
 503                            GtkCellRenderer *renderer,
 504                            GtkTreeModel *model,
 505                            GtkTreeIter *iter,
 506                            gpointer data)
 507 {
 508         int ml, mbar;
 509         double size, pressure;
 510         char buffer[10];
 511
 512         gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
 513         convert_volume_pressure(ml, mbar, &size, &pressure);
 514         if (size)
 515                 snprintf(buffer, sizeof(buffer), "%.1f", size);
 516         else
 517                 strcpy(buffer, "unkn");
 518         g_object_set(renderer, "text", buffer, NULL);
 519 }
 520
 521 static void pressure_data_func(GtkTreeViewColumn *col,
 522                            GtkCellRenderer *renderer,
 523                            GtkTreeModel *model,
 524                            GtkTreeIter *iter,
 525                            gpointer data)
 526 {
 527         int index = (long)data;
 528         int mbar, decimals;
 529         double pressure;
 530         char buffer[10];
 531
 532         gtk_tree_model_get(model, iter, index, &mbar, -1);
 533         decimals = convert_pressure(mbar, &pressure);
 534         if (mbar)
 535                 snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
 536         else
 537                 *buffer = 0;
 538         g_object_set(renderer, "text", buffer, NULL);
 539 }
 540
 541 static void percentage_data_func(GtkTreeViewColumn *col,
 542                            GtkCellRenderer *renderer,
 543                            GtkTreeModel *model,
 544                            GtkTreeIter *iter,
 545                            gpointer data)
 546 {
 547         int index = (long)data;
 548         int permille;
 549         char buffer[10];
 550
 551         gtk_tree_model_get(model, iter, index, &permille, -1);
 552         if (permille)
 553                 snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
 554         else
 555                 *buffer = 0;
 556         g_object_set(renderer, "text", buffer, NULL);
 557 }
 558
 559 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
 560 {
 561         GtkTreeIter iter;
 562         int selected;
 563
 564         selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
 565         gtk_widget_set_sensitive(cylinder_list.edit, selected);
 566         gtk_widget_set_sensitive(cylinder_list.del, selected);
 567 }
 568
 569 static GtkWidget *cylinder_list_create(void)
 570 {
 571         GtkWidget *tree_view;
 572         GtkTreeSelection *selection;
 573         GtkListStore *model;
 574
 575         model = gtk_list_store_new(CYL_COLUMNS,
 576                 G_TYPE_INT,             /* CYL_INDEX */
 577                 G_TYPE_STRING,          /* CYL_DESC: utf8 */
 578                 G_TYPE_INT,             /* CYL_SIZE: mliter */
 579                 G_TYPE_INT,             /* CYL_WORKP: mbar */
 580                 G_TYPE_INT,             /* CYL_STARTP: mbar */
 581                 G_TYPE_INT,             /* CYL_ENDP: mbar */
 582                 G_TYPE_INT,             /* CYL_O2: permille */
 583                 G_TYPE_INT              /* CYL_HE: permille */
 584                 );
 585         cylinder_list.model = model;
 586         tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 587
 588         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
 589         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 590         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
 591
 592         cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
 593         cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
 594         cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 595         cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 596         cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
 597         cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 598         cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
 599         return tree_view;
 600 }
 601
 602 GtkWidget *equipment_widget(void)
 603 {
 604         GtkWidget *vbox, *hbox, *frame, *framebox;
 605         GtkWidget *add, *del, *edit;
 606
 607         vbox = gtk_vbox_new(FALSE, 3);
 608
 609         /*
 610          * We create the cylinder size model at startup, since
 611          * we're going to share it across all cylinders and all
 612          * dives. So if you add a new cylinder type in one dive,
 613          * it will show up when you edit the cylinder types for
 614          * another dive.
 615          */
 616         cylinder_model = create_tank_size_model();
 617
 618         cylinder_list.tree_view = cylinder_list_create();
 619
 620         hbox = gtk_hbox_new(FALSE, 3);
 621         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
 622
 623         frame = gtk_frame_new("Cylinders");
 624         gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
 625
 626         framebox = gtk_vbox_new(FALSE, 3);
 627         gtk_container_add(GTK_CONTAINER(frame), framebox);
 628
 629         hbox = gtk_hbox_new(FALSE, 3);
 630         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 631
 632         gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
 633
 634         hbox = gtk_hbox_new(TRUE, 3);
 635         gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
 636
 637         edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
 638         add = gtk_button_new_from_stock(GTK_STOCK_ADD);
 639         del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
 640         gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
 641         gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
 642         gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
 643
 644         cylinder_list.edit = edit;
 645         cylinder_list.add = add;
 646         cylinder_list.del = del;
 647
 648         g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
 649         g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
 650         g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
 651
 652         return vbox;
 653 }