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 struct cylinder_widget {
  12         int index, changed;
  13         const char *name;
  14         GtkComboBox *description;
  15         GtkSpinButton *size, *pressure;
  16         GtkWidget *o2, *gasmix_button;
  17 };
  18
  19 static struct cylinder_widget gtk_cylinder[MAX_CYLINDERS];
  20
  21 static void set_cylinder_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar)
  22 {
  23         double volume, pressure;
  24
  25         volume = ml / 1000.0;
  26         pressure = mbar / 1000.0;
  27         if (mbar) {
  28                 if (output_units.volume == CUFT) {
  29                         volume /= 28.3168466;   /* Liters to cuft */
  30                         volume *= pressure / 1.01325;
  31                 }
  32                 if (output_units.pressure == PSI) {
  33                         pressure *= 14.5037738; /* Bar to PSI */
  34                 }
  35         }
  36
  37         gtk_spin_button_set_value(cylinder->size, volume);
  38         gtk_spin_button_set_value(cylinder->pressure, pressure);
  39 }
  40
  41 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
  42 {
  43         GtkTreeIter iter;
  44         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
  45         GValue value1 = {0, }, value2 = {0,};
  46         struct cylinder_widget *cylinder = data;
  47         cylinder_t *cyl = current_dive->cylinder + cylinder->index;
  48
  49         /* Did the user set it to some non-standard value? */
  50         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
  51                 cylinder->changed = 1;
  52                 return;
  53         }
  54
  55         /*
  56          * We get "change" signal callbacks just because we set
  57          * the description by hand. Whatever. So ignore them if
  58          * they are no-ops.
  59          */
  60         if (!cylinder->changed && cyl->type.description) {
  61                 int same;
  62                 char *desc = gtk_combo_box_get_active_text(combo_box);
  63
  64                 same = !strcmp(desc, cyl->type.description);
  65                 g_free(desc);
  66                 if (same)
  67                         return;
  68         }
  69         cylinder->changed = 1;
  70
  71         gtk_tree_model_get_value(model, &iter, 1, &value1);
  72         gtk_tree_model_get_value(model, &iter, 2, &value2);
  73
  74         set_cylinder_spinbuttons(cylinder, g_value_get_int(&value1), g_value_get_int(&value2));
  75 }
  76
  77 /*
  78  * The gtk_tree_model_foreach() interface is bad. It could have
  79  * returned whether the callback ever returned true
  80  */
  81 static int found_match = 0;
  82
  83 static gboolean match_cylinder(GtkTreeModel *model,
  84                                 GtkTreePath *path,
  85                                 GtkTreeIter *iter,
  86                                 gpointer data)
  87 {
  88         const char *name;
  89         struct cylinder_widget *cylinder = data;
  90         GValue value = {0, };
  91
  92         gtk_tree_model_get_value(model, iter, 0, &value);
  93         name = g_value_get_string(&value);
  94         if (strcmp(cylinder->name, name))
  95                 return FALSE;
  96         gtk_combo_box_set_active_iter(cylinder->description, iter);
  97         found_match = 1;
  98         return TRUE;
  99 }
 100
 101 static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
 102 {
 103         GtkTreeModel *model;
 104
 105         found_match = 0;
 106         model = gtk_combo_box_get_model(cylinder->description);
 107         cylinder->name = desc;
 108         gtk_tree_model_foreach(model, match_cylinder, cylinder);
 109
 110         if (!found_match) {
 111                 GtkListStore *store = GTK_LIST_STORE(model);
 112                 GtkTreeIter iter;
 113
 114                 gtk_list_store_append(store, &iter);
 115                 gtk_list_store_set(store, &iter,
 116                         0, desc,
 117                         1, ml,
 118                         2, mbar,
 119                         -1);
 120                 gtk_combo_box_set_active_iter(cylinder->description, &iter);
 121         }
 122 }
 123
 124 static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
 125 {
 126         const char *desc;
 127         int ml, mbar;
 128         double o2;
 129
 130         /* Don't show uninitialized cylinder widgets */
 131         if (!cylinder->description)
 132                 return;
 133
 134         desc = cyl->type.description;
 135         if (!desc)
 136                 desc = "";
 137         ml = cyl->type.size.mliter;
 138         mbar = cyl->type.workingpressure.mbar;
 139         add_cylinder(cylinder, desc, ml, mbar);
 140
 141         set_cylinder_spinbuttons(cylinder, cyl->type.size.mliter, cyl->type.workingpressure.mbar);
 142         o2 = cyl->gasmix.o2.permille / 10.0;
 143         gtk_widget_set_sensitive(cylinder->o2, !!o2);
 144         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
 145         if (!o2)
 146                 o2 = 21.0;
 147         gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
 148 }
 149
 150 void show_dive_equipment(struct dive *dive)
 151 {
 152         int i;
 153
 154         for (i = 0; i < MAX_CYLINDERS; i++)
 155                 show_cylinder(dive->cylinder + i, gtk_cylinder+i);
 156 }
 157
 158 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 159 {
 160         GtkWidget *frame, *hbox, *button;
 161
 162         frame = gtk_frame_new(name);
 163         gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, TRUE, 0);
 164
 165         hbox = gtk_hbox_new(FALSE, 3);
 166         gtk_container_add(GTK_CONTAINER(frame), hbox);
 167
 168         button = gtk_spin_button_new_with_range(min, max, incr);
 169         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 0);
 170
 171         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 172
 173         return button;
 174 }
 175
 176 static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 177 {
 178         int mbar, ml;
 179
 180         if (output_units.pressure == PSI)
 181                 pressure /= 14.5037738;
 182
 183         if (pressure && output_units.volume == CUFT) {
 184                 volume *= 28.3168466;   /* CUFT to liter */
 185                 volume /= pressure / 1.01325;
 186         }
 187
 188         ml = volume * 1000 + 0.5;
 189         mbar = pressure * 1000 + 0.5;
 190
 191         if (o2 < 211)
 192                 o2 = 0;
 193         cyl->type.description = desc;
 194         cyl->type.size.mliter = ml;
 195         cyl->type.workingpressure.mbar = mbar;
 196         cyl->gasmix.o2.permille = o2;
 197
 198         /*
 199          * Also, insert it into the model if it doesn't already exist
 200          */
 201         add_cylinder(cylinder, desc, ml, mbar);
 202 }
 203
 204 static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
 205 {
 206         const gchar *desc;
 207         GtkComboBox *box;
 208         double volume, pressure;
 209         int o2;
 210
 211         /* Ignore uninitialized cylinder widgets */
 212         box = cylinder->description;
 213         if (!box)
 214                 return;
 215
 216         desc = gtk_combo_box_get_active_text(box);
 217         volume = gtk_spin_button_get_value(cylinder->size);
 218         pressure = gtk_spin_button_get_value(cylinder->pressure);
 219         o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
 220         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
 221                 o2 = 0;
 222         fill_cylinder_info(cylinder, cyl, desc, volume, pressure, o2);
 223 }
 224
 225 void flush_dive_equipment_changes(struct dive *dive)
 226 {
 227         int i;
 228
 229         for (i = 0; i < MAX_CYLINDERS; i++)
 230                 record_cylinder_changes(dive->cylinder+i, gtk_cylinder+i);
 231 }
 232
 233 /*
 234  * We hardcode the most common standard cylinders,
 235  * we should pick up any other names from the dive
 236  * logs directly.
 237  */
 238 static struct tank_info {
 239         const char *name;
 240         int size;       /* cuft if < 1000, otherwise mliter */
 241         int psi;        /* If zero, size is in mliter */
 242 } tank_info[100] = {
 243         /* Need an empty entry for the no-cylinder case */
 244         { "", 0, 0 },
 245
 246         /* Size-only metric cylinders */
 247         { "10.0 l", 10000 },
 248         { "11.1 l", 11100 },
 249
 250         /* Most common AL cylinders */
 251         { "AL50",   50, 3000 },
 252         { "AL63",   63, 3000 },
 253         { "AL72",   72, 3000 },
 254         { "AL80",   80, 3000 },
 255         { "AL100", 100, 3300 },
 256
 257         /* Somewhat common LP steel cylinders */
 258         { "LP85",   85, 2640 },
 259         { "LP95",   95, 2640 },
 260         { "LP108", 108, 2640 },
 261         { "LP121", 121, 2640 },
 262
 263         /* Somewhat common HP steel cylinders */
 264         { "HP65",   65, 3442 },
 265         { "HP80",   80, 3442 },
 266         { "HP100", 100, 3442 },
 267         { "HP119", 119, 3442 },
 268         { "HP130", 130, 3442 },
 269
 270         /* We'll fill in more from the dive log dynamically */
 271         { NULL, }
 272 };
 273
 274 static void fill_tank_list(GtkListStore *store)
 275 {
 276         GtkTreeIter iter;
 277         struct tank_info *info = tank_info;
 278
 279         while (info->name) {
 280                 int size = info->size;
 281                 int psi = info->psi;
 282                 int mbar = 0, ml = size;
 283
 284                 /* Is it in cuft and psi? */
 285                 if (psi) {
 286                         double bar = 0.0689475729 * psi;
 287                         double airvolume = 28316.8466 * size;
 288                         double atm = bar / 1.01325;
 289
 290                         ml = airvolume / atm + 0.5;
 291                         mbar = bar*1000 + 0.5;
 292                 }
 293
 294                 gtk_list_store_append(store, &iter);
 295                 gtk_list_store_set(store, &iter,
 296                         0, info->name,
 297                         1, ml,
 298                         2, mbar,
 299                         -1);
 300                 info++;
 301         }
 302 }
 303
 304 static void nitrox_cb(GtkToggleButton *button, gpointer data)
 305 {
 306         struct cylinder_widget *cylinder = data;
 307         int state;
 308
 309         state = gtk_toggle_button_get_active(button);
 310         gtk_widget_set_sensitive(cylinder->o2, state);
 311 }
 312
 313 static void cylinder_widget(GtkWidget *box, int nr, GtkListStore *model)
 314 {
 315         struct cylinder_widget *cylinder;
 316         GtkWidget *frame, *hbox, *hbox2;
 317         GtkWidget *widget;
 318         char buffer[80];
 319
 320         cylinder = gtk_cylinder + nr;
 321         cylinder->index = nr;
 322
 323         hbox = gtk_hbox_new(FALSE, 3);
 324         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, FALSE, 0);
 325
 326         snprintf(buffer, sizeof(buffer), "Cylinder %d", nr+1);
 327         frame = gtk_frame_new(buffer);
 328         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 329
 330         hbox2 = gtk_hbox_new(FALSE, 3);
 331         gtk_container_add(GTK_CONTAINER(frame), hbox2);
 332
 333         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 334         gtk_box_pack_start(GTK_BOX(hbox2), widget, FALSE, TRUE, 0);
 335
 336         cylinder->description = GTK_COMBO_BOX(widget);
 337         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
 338
 339         widget = create_spinbutton(hbox, "Size", 0, 200, 0.1);
 340         cylinder->size = GTK_SPIN_BUTTON(widget);
 341
 342         widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
 343         cylinder->pressure = GTK_SPIN_BUTTON(widget);
 344
 345         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 346         cylinder->o2 = widget;
 347         cylinder->gasmix_button = gtk_check_button_new();
 348         gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
 349                 cylinder->gasmix_button, FALSE, FALSE, 3);
 350         g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
 351
 352         gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
 353 }
 354
 355 static GtkListStore *create_tank_size_model(void)
 356 {
 357         GtkListStore *model;
 358
 359         model = gtk_list_store_new(3,
 360                 G_TYPE_STRING,          /* Tank name */
 361                 G_TYPE_INT,             /* Tank size in mliter */
 362                 G_TYPE_INT,             /* Tank working pressure in mbar */
 363                 -1);
 364
 365         fill_tank_list(model);
 366         return model;
 367 }
 368
 369 GtkWidget *equipment_widget(void)
 370 {
 371         GtkWidget *vbox;
 372         GtkListStore *model;
 373
 374         vbox = gtk_vbox_new(FALSE, 3);
 375
 376         model = create_tank_size_model();
 377         cylinder_widget(vbox, 0, model);
 378         cylinder_widget(vbox, 1, model);
 379
 380         return vbox;
 381 }