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, *nitrox_value;
  14
  15 static void set_cylinder_spinbuttons(int ml, int mbar)
  16 {
  17         double volume, pressure;
  18
  19         volume = ml / 1000.0;
  20         pressure = mbar / 1000.0;
  21         if (mbar) {
  22                 if (output_units.volume == CUFT) {
  23                         volume /= 28.3168466;   /* Liters to cuft */
  24                         volume *= pressure / 1.01325;
  25                 }
  26                 if (output_units.pressure == PSI) {
  27                         pressure *= 14.5037738; /* Bar to PSI */
  28                 }
  29         }
  30
  31         gtk_spin_button_set_value(cylinder_size, volume);
  32         gtk_spin_button_set_value(cylinder_pressure, pressure);
  33 }
  34
  35 static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
  36 {
  37         GtkTreeIter iter;
  38         GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
  39         GValue value1 = {0, }, value2 = {0,};
  40         cylinder_t *cyl = current_dive->cylinder + 0;
  41
  42         /* Did the user set it to some non-standard value? */
  43         if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
  44                 cylinder_changed = 1;
  45                 return;
  46         }
  47
  48         /*
  49          * We get "change" signal callbacks just because we set
  50          * the description by hand. Whatever. So ignore them if
  51          * they are no-ops.
  52          */
  53         if (!cylinder_changed && cyl->type.description) {
  54                 int same;
  55                 char *desc = gtk_combo_box_get_active_text(combo_box);
  56
  57                 same = !strcmp(desc, cyl->type.description);
  58                 g_free(desc);
  59                 if (same)
  60                         return;
  61         }
  62         cylinder_changed = 1;
  63
  64         gtk_tree_model_get_value(model, &iter, 1, &value1);
  65         gtk_tree_model_get_value(model, &iter, 2, &value2);
  66
  67         set_cylinder_spinbuttons(g_value_get_int(&value1), g_value_get_int(&value2));
  68 }
  69
  70 static gboolean match_cylinder(GtkTreeModel *model,
  71                                 GtkTreePath *path,
  72                                 GtkTreeIter *iter,
  73                                 gpointer data)
  74 {
  75         const char *name;
  76         const char *desc = data;
  77         GValue value = {0, };
  78
  79         gtk_tree_model_get_value(model, iter, 0, &value);
  80         name = g_value_get_string(&value);
  81         if (strcmp(desc, name))
  82                 return FALSE;
  83         gtk_combo_box_set_active_iter(cylinder_description, iter);
  84         return TRUE;
  85 }
  86
  87 void show_dive_equipment(struct dive *dive)
  88 {
  89         cylinder_t *cyl = &dive->cylinder[0];
  90         const char *desc = cyl->type.description;
  91         GtkTreeModel *model = gtk_combo_box_get_model(cylinder_description);
  92         double o2;
  93
  94         if (desc)
  95                 gtk_tree_model_foreach(model, match_cylinder, (gpointer)desc);
  96
  97         set_cylinder_spinbuttons(cyl->type.size.mliter, cyl->type.workingpressure.mbar);
  98         o2 = cyl->gasmix.o2.permille / 10.0;
  99         if (!o2)
 100                 o2 = 21.0;
 101         gtk_spin_button_set_value(nitrox_value, o2);
 102 }
 103
 104 static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
 105 {
 106         GtkWidget *frame, *button;
 107
 108         frame = gtk_frame_new(name);
 109         gtk_container_add(GTK_CONTAINER(vbox), frame);
 110
 111         button = gtk_spin_button_new_with_range(min, max, incr);
 112         gtk_container_add(GTK_CONTAINER(frame), button);
 113
 114         gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
 115
 116         return button;
 117 }
 118
 119 static void fill_cylinder_info(cylinder_t *cyl, const char *desc, double volume, double pressure, int o2)
 120 {
 121         int mbar, ml;
 122
 123         if (output_units.pressure == PSI)
 124                 pressure /= 14.5037738;
 125
 126         if (pressure && output_units.volume == CUFT) {
 127                 volume *= 28.3168466;   /* CUFT to liter */
 128                 volume /= pressure / 1.01325;
 129         }
 130
 131         ml = volume * 1000 + 0.5;
 132         mbar = pressure * 1000 + 0.5;
 133
 134         if (o2 < 211)
 135                 o2 = 0;
 136         cyl->type.description = desc;
 137         cyl->type.size.mliter = ml;
 138         cyl->type.workingpressure.mbar = mbar;
 139         cyl->gasmix.o2.permille = o2;
 140 }
 141
 142 static void record_cylinder_changes(struct dive *dive)
 143 {
 144         const gchar *desc;
 145         GtkComboBox *box = cylinder_description;
 146         double volume, pressure;
 147         int o2;
 148
 149         desc = gtk_combo_box_get_active_text(box);
 150         volume = gtk_spin_button_get_value(cylinder_size);
 151         pressure = gtk_spin_button_get_value(cylinder_pressure);
 152         o2 = gtk_spin_button_get_value(nitrox_value)*10 + 0.5;
 153         fill_cylinder_info(dive->cylinder+0, desc, volume, pressure, o2);
 154 }
 155
 156 void flush_dive_equipment_changes(struct dive *dive)
 157 {
 158         record_cylinder_changes(dive);
 159 }
 160
 161 /* We should take these from the dive list instead */
 162 static struct tank_info {
 163         const char *name;
 164         int size;       /* cuft or mliter depending on psi */
 165         int psi;        /* If zero, size is in mliter */
 166 } tank_info[] = {
 167         { "None", 0, 0 },
 168         { "10.0 l", 10000 },
 169         { "11.1 l", 11100 },
 170         { "AL72", 72, 3000 },
 171         { "AL80", 80, 3000 },
 172         { "LP85", 85, 2400 },
 173         { "LP95", 95, 2400 },
 174         { "LP85+", 85, 2640 },
 175         { "LP95+", 95, 2640 },
 176         { "HP100", 100, 3442 },
 177         { "HP119", 119, 3442 },
 178         { NULL, }
 179 };
 180
 181 static void fill_tank_list(GtkListStore *store)
 182 {
 183         GtkTreeIter iter;
 184
 185         struct tank_info *info = tank_info;
 186
 187         while (info->name) {
 188                 int size = info->size;
 189                 int psi = info->psi;
 190                 int mbar = 0, ml = size;
 191
 192                 /* Is it in cuft and psi? */
 193                 if (psi) {
 194                         double bar = 0.0689475729 * psi;
 195                         double airvolume = 28316.8466 * size;
 196                         double atm = bar / 1.01325;
 197
 198                         ml = airvolume / atm + 0.5;
 199                         mbar = bar*1000 + 0.5;
 200                 }
 201
 202                 gtk_list_store_append(store, &iter);
 203                 gtk_list_store_set(store, &iter,
 204                         0, info->name,
 205                         1, ml,
 206                         2, mbar,
 207                         -1);
 208                 info++;
 209         }
 210 }
 211
 212 static void cylinder_widget(GtkWidget *box, int nr, GtkListStore *model)
 213 {
 214         GtkWidget *frame, *hbox;
 215         GtkWidget *widget;
 216         char buffer[80];
 217
 218         snprintf(buffer, sizeof(buffer), "Cylinder %d", nr);
 219         frame = gtk_frame_new(buffer);
 220         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, FALSE, 0);
 221
 222         hbox = gtk_hbox_new(TRUE, 3);
 223         gtk_container_add(GTK_CONTAINER(frame), hbox);
 224
 225         frame = gtk_frame_new("Description");
 226         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, FALSE, 0);
 227
 228         widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
 229         gtk_container_add(GTK_CONTAINER(frame), widget);
 230
 231         cylinder_description = GTK_COMBO_BOX(widget);
 232         g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), NULL);
 233
 234         widget = create_spinbutton(hbox, "Size", 0, 200, 0.1);
 235         cylinder_size = GTK_SPIN_BUTTON(widget);
 236
 237         widget = create_spinbutton(hbox, "Working Pressure", 0, 5000, 1);
 238         cylinder_pressure = GTK_SPIN_BUTTON(widget);
 239
 240         widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
 241         nitrox_value = GTK_SPIN_BUTTON(widget);
 242         gtk_spin_button_set_range(nitrox_value, 21.0, 100.0);
 243 }
 244
 245 static GtkListStore *create_tank_size_model(void)
 246 {
 247         GtkListStore *model;
 248
 249         model = gtk_list_store_new(3,
 250                 G_TYPE_STRING,          /* Tank name */
 251                 G_TYPE_INT,             /* Tank size in mliter */
 252                 G_TYPE_INT,             /* Tank working pressure in mbar */
 253                 -1);
 254
 255         fill_tank_list(model);
 256         return model;
 257 }
 258
 259 GtkWidget *equipment_widget(void)
 260 {
 261         GtkWidget *vbox;
 262         GtkListStore *model;
 263
 264         vbox = gtk_vbox_new(FALSE, 3);
 265
 266         model = create_tank_size_model();
 267         cylinder_widget(vbox, 0, model);
 268
 269         return vbox;
 270 }