equipment.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <stdlib.h>
   4 #include <stdarg.h>
   5 #include <time.h>
   6
   7 #include "dive.h"
   8 #include "display.h"
   9 #include "divelist.h"
  10
  11 static int cylinder_changed;
  12 static GtkComboBox *cylinder_description;
  13 static GtkSpinButton *cylinder_size, *cylinder_pressure;
  14 static GtkWidget *nitrox_value, *nitrox_button;
  15
  16 static void set_cylinder_spinbuttons(int ml, int mbar)
  17 {
  18         double volume, pressure;
  19
  20         volume = ml / 1000.0;
  21         pressure = mbar / 1000.0;
  22         if (mbar) {
  23                 if (output_units.volume == CUFT) {
  24                         volume /= 28.3168466;   /* Liters to cuft */
  25                         volume *= pressure / 1.01325;
  26                 }
  27                 if (output_units.pressure == PSI) {
  28                         pressure *= 14.5037738; /* Bar to PSI */
  29                 }
  30         }
  31
  32         gtk_spin_button_set_value(cylinder_size, volume);
  33         gtk_spin_button_set_value(cylinder_pressure, pressure);
  34 }
  35
  36 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
  37 {
  38         GtkTreeIter iter;
  39         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
  40         GValue value1 = {0, }, value2 = {0,};
  41         cylinder_t *cyl = current_dive->cylinder + 0;
  42
  43         /* Did the user set it to some non-standard value? */
  44         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
  45                 cylinder_changed = 1;
  46                 return;
  47         }
  48
  49         /*
  50          * We get "change" signal callbacks just because we set
  51          * the description by hand. Whatever. So ignore them if
  52          * they are no-ops.
  53          */
  54         if (!cylinder_changed && cyl->type.description) {
  55                 int same;
  56                 char *desc = gtk_combo_box_get_active_text(combo_box);
  57
  58                 same = !strcmp(desc, cyl->type.description);
  59                 g_free(desc);
  60                 if (same)
  61                         return;
  62         }
  63         cylinder_changed = 1;
  64
  65         gtk_tree_model_get_value(model, &iter, 1, &value1);
  66         gtk_tree_model_get_value(model, &iter, 2, &value2);
  67
  68         set_cylinder_spinbuttons(g_value_get_int(&value1), g_value_get_int(&value2));
  69 }
  70
  71 /*
  72  * The gtk_tree_model_foreach() interface is bad. It could have
  73  * returned whether the callback ever returned true
  74  */
  75 static int found_match = 0;
  76
  77 static gboolean match_cylinder(GtkTreeModel *model,
  78                                 GtkTreePath *path,
  79                                 GtkTreeIter *iter,
  80                                 gpointer data)
  81 {
  82         const char *name;
  83         const char *desc = data;
  84         GValue value = {0, };
  85
  86         gtk_tree_model_get_value(model, iter, 0, &value);
  87         name = g_value_get_string(&value);
  88         if (strcmp(desc, name))
  89                 return FALSE;
  90         gtk_combo_box_set_active_iter(cylinder_description, iter);
  91         found_match = 1;
  92         return TRUE;
  93 }
  94
  95 static void add_cylinder(const char *desc, int ml, int mbar)
  96 {
  97         GtkTreeModel *model;
  98
  99         found_match = 0;
 100         model = gtk_combo_box_get_model(cylinder_description);
 101         gtk_tree_model_foreach(model, match_cylinder, (gpointer)desc);
 102
 103         if (!found_match) {
 104                 GtkListStore *store = GTK_LIST_STORE(model);
 105                 GtkTreeIter iter;
 106
 107                 gtk_list_store_append(store, &iter);
 108                 gtk_list_store_set(store, &iter,
 109                         0, desc,
 110                         1, ml,
 111                         2, mbar,
 112                         -1);
 113                 gtk_combo_box_set_active_iter(cylinder_description, &iter);
 114         }
 115 }
 116
 117 void show_dive_equipment(struct dive *dive)
 118 {
 119         cylinder_t *cyl = &dive->cylinder[0];
 120         const char *desc = cyl->type.description;
 121         int ml, mbar;
 122         double o2;
 123
 124         if (!desc)
 125                 desc = "";
 126
 127         ml = cyl->type.size.mliter;
 128         mbar = cyl->type.workingpressure.mbar;
 129         add_cylinder(desc, ml, mbar);
 130
 131         set_cylinder_spinbuttons(cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 132         o2 = cyl->gasmix.o2.permille / 10.0;
 133         gtk_widget_set_sensitive(nitrox_value, !!o2);
 134         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(nitrox_button), !!o2);
 135         if (!o2)
 136                 o2 = 21.0;
 137         gtk_spin_button_set_value(GTK_SPIN_BUTTON(nitrox_value), o2);
 138 }
 139
 140 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 141 {
 142         GtkWidget *frame, *hbox, *button;
 143
 144         frame = gtk_frame_new(name);
 145         gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, TRUE, 0);
 146
 147         hbox = gtk_hbox_new(FALSE, 3);
 148         gtk_container_add(GTK_CONTAINER(frame), hbox);
 149
 150         button = gtk_spin_button_new_with_range(min, max, incr);
 151         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 0);
 152
 153         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 154
 155         return button;
 156 }
 157
 158 static void fill_cylinder_info(cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 159 {
 160         int mbar, ml;
 161
 162         if (output_units.pressure == PSI)
 163                 pressure /= 14.5037738;
 164
 165         if (pressure && output_units.volume == CUFT) {
 166                 volume *= 28.3168466;   /* CUFT to liter */
 167                 volume /= pressure / 1.01325;
 168         }
 169
 170         ml = volume * 1000 + 0.5;
 171         mbar = pressure * 1000 + 0.5;
 172
 173         if (o2 < 211)
 174                 o2 = 0;
 175         cyl->type.description = desc;
 176         cyl->type.size.mliter = ml;
 177         cyl->type.workingpressure.mbar = mbar;
 178         cyl->gasmix.o2.permille = o2;
 179
 180         /*
 181          * Also, insert it into the model if it doesn't already exist
 182          */
 183         add_cylinder(desc, ml, mbar);
 184 }
 185
 186 static void record_cylinder_changes(struct dive *dive)
 187 {
 188         const gchar *desc;
 189         GtkComboBox *box = cylinder_description;
 190         double volume, pressure;
 191         int o2;
 192
 193         desc = gtk_combo_box_get_active_text(box);
 194         volume = gtk_spin_button_get_value(cylinder_size);
 195         pressure = gtk_spin_button_get_value(cylinder_pressure);
 196         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(nitrox_value))*10 + 0.5;
 197         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(nitrox_button)))
 198                 o2 = 0;
 199         fill_cylinder_info(dive->cylinder+0, desc, volume, pressure, o2);
 200 }
 201
 202 void flush_dive_equipment_changes(struct dive *dive)
 203 {
 204         record_cylinder_changes(dive);
 205 }
 206
 207 /*
 208  * We hardcode the most common standard cylinders,
 209  * we should pick up any other names from the dive
 210  * logs directly.
 211  */
 212 static struct tank_info {
 213         const char *name;
 214         int size;       /* cuft if < 1000, otherwise mliter */
 215         int psi;        /* If zero, size is in mliter */
 216 } tank_info[100] = {
 217         /* Need an empty entry for the no-cylinder case */
 218         { "", 0, 0 },
 219
 220         /* Size-only metric cylinders */
 221         { "10.0 l", 10000 },
 222         { "11.1 l", 11100 },
 223
 224         /* Most common AL cylinders */
 225         { "AL50",   50, 3000 },
 226         { "AL63",   63, 3000 },
 227         { "AL72",   72, 3000 },
 228         { "AL80",   80, 3000 },
 229         { "AL100", 100, 3300 },
 230
 231         /* Somewhat common LP steel cylinders */
 232         { "LP85",   85, 2640 },
 233         { "LP95",   95, 2640 },
 234         { "LP108", 108, 2640 },
 235         { "LP121", 121, 2640 },
 236
 237         /* Somewhat common HP steel cylinders */
 238         { "HP65",   65, 3442 },
 239         { "HP80",   80, 3442 },
 240         { "HP100", 100, 3442 },
 241         { "HP119", 119, 3442 },
 242         { "HP130", 130, 3442 },
 243
 244         /* We'll fill in more from the dive log dynamically */
 245         { NULL, }
 246 };
 247
 248 static void fill_tank_list(GtkListStore *store)
 249 {
 250         GtkTreeIter iter;
 251         struct tank_info *info = tank_info;
 252
 253         while (info->name) {
 254                 int size = info->size;
 255                 int psi = info->psi;
 256                 int mbar = 0, ml = size;
 257
 258                 /* Is it in cuft and psi? */
 259                 if (psi) {
 260                         double bar = 0.0689475729 * psi;
 261                         double airvolume = 28316.8466 * size;
 262                         double atm = bar / 1.01325;
 263
 264                         ml = airvolume / atm + 0.5;
 265                         mbar = bar*1000 + 0.5;
 266                 }
 267
 268                 gtk_list_store_append(store, &iter);
 269                 gtk_list_store_set(store, &iter,
 270                         0, info->name,
 271                         1, ml,
 272                         2, mbar,
 273                         -1);
 274                 info++;
 275         }
 276 }
 277
 278 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 279 {
 280         GtkWidget *nitrox_value = data;
 281         int state;
 282
 283         state = gtk_toggle_button_get_active(button);
 284         gtk_widget_set_sensitive(nitrox_value, state);
 285 }
 286
 287 static void cylinder_widget(GtkWidget *box, int nr, GtkListStore *model)
 288 {
 289         GtkWidget *frame, *hbox, *hbox2;
 290         GtkWidget *widget;
 291         char buffer[80];
 292
 293         hbox = gtk_hbox_new(FALSE, 3);
 294         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, FALSE, 0);
 295
 296         snprintf(buffer, sizeof(buffer), "Cylinder %d", nr+1);
 297         frame = gtk_frame_new(buffer);
 298         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 299
 300         hbox2 = gtk_hbox_new(FALSE, 3);
 301         gtk_container_add(GTK_CONTAINER(frame), hbox2);
 302
 303         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 304         gtk_box_pack_start(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
 305
 306         cylinder_description = GTK_COMBO_BOX(widget);
 307         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), NULL);
 308
 309         widget = create_spinbutton(hbox, "Size", 0, 200, 0.1);
 310         cylinder_size = GTK_SPIN_BUTTON(widget);
 311
 312         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 313         cylinder_pressure = GTK_SPIN_BUTTON(widget);
 314
 315         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 316         nitrox_value = widget;
 317         nitrox_button = gtk_check_button_new();
 318         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(nitrox_value)),
 319                 nitrox_button, FALSE, FALSE, 3);
 320         g_signal_connect(nitrox_button, "toggled", G_CALLBACK(nitrox_cb), nitrox_value);
 321
 322         gtk_spin_button_set_range(GTK_SPIN_BUTTON(nitrox_value), 21.0, 100.0);
 323 }
 324
 325 static GtkListStore *create_tank_size_model(void)
 326 {
 327         GtkListStore *model;
 328
 329         model = gtk_list_store_new(3,
 330                 G_TYPE_STRING,          /* Tank name */
 331                 G_TYPE_INT,             /* Tank size in mliter */
 332                 G_TYPE_INT,             /* Tank working pressure in mbar */
 333                 -1);
 334
 335         fill_tank_list(model);
 336         return model;
 337 }
 338
 339 GtkWidget *equipment_widget(void)
 340 {
 341         GtkWidget *vbox;
 342         GtkListStore *model;
 343
 344         vbox = gtk_vbox_new(FALSE, 3);
 345
 346         model = create_tank_size_model();
 347         cylinder_widget(vbox, 0, model);
 348
 349         return vbox;
 350 }