double get_depth_units(unsigned int mm, int *frac, const char **units)
{
int decimals;
double d;
const char *unit;
struct units *units_p = get_units();
switch (units_p->length) {
case METERS:
d = mm / 1000.0;
unit = _("m");
decimals = d < 20;
break;
case FEET:
d = mm_to_feet(mm);
unit = _("ft");
decimals = 0;
break;
}
if (frac)
*frac = decimals;
if (units)
*units = unit;
return d;
}
/* Get the values as we want to show them. Whole feet. But meters with one decimal for
* values less than 20m, without decimals for larger values */
void get_depth_values(int depth, int *depth_int, int *depth_decimal, int *show_decimal)
{
int integer, frac;
*show_decimal = 1;
switch (prefs.units.length) {
case METERS:
/* To tenths of meters */
depth = (depth + 49) / 100;
integer = depth / 10;
frac = depth % 10;
if (integer < 20)
break;
if (frac >= 5)
integer++;
*show_decimal = 0;
break;
case FEET:
integer = mm_to_feet(depth) + 0.5;
*show_decimal = 0;
break;
default:
/* can't happen */
return;
}
*depth_int = integer;
if (*show_decimal)
*depth_decimal = frac;
}
static void depth_data_func(GtkTreeViewColumn *col,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
int depth, integer, frac, len;
char buffer[40];
gtk_tree_model_get(model, iter, DIVE_DEPTH, &depth, -1);
switch (output_units.length) {
case METERS:
/* To tenths of meters */
depth = (depth + 49) / 100;
integer = depth / 10;
frac = depth % 10;
if (integer < 20)
break;
frac = -1;
/* Rounding? */
break;
case FEET:
integer = mm_to_feet(depth) + 0.5;
frac = -1;
break;
default:
return;
}
len = snprintf(buffer, sizeof(buffer), "%d", integer);
if (frac >= 0)
len += snprintf(buffer+len, sizeof(buffer)-len, ".%d", frac);
g_object_set(renderer, "text", buffer, NULL);
}
QString get_depth_string(depth_t depth, bool showunit)
{
if (prefs.units.length == units::METERS) {
double meters = depth.mm / 1000.0;
return QString("%1%2").arg(meters, 0, 'f', meters >= 20.0 ? 0 : 1 ).arg(showunit ? _("m") : "");
} else {
double feet = mm_to_feet(depth.mm);
return QString("%1%2").arg(feet, 0, 'f', 1). arg(showunit ? _("ft") : "");
}
}
QString get_depth_string(int mm, bool showunit, bool showdecimal)
{
if (prefs.units.length == units::METERS) {
double meters = mm / 1000.0;
return QString("%1%2").arg(meters, 0, 'f', (showdecimal && meters < 20.0) ? 1 : 0 ).arg(showunit ? translate("gettextFromC","m") : "");
} else {
double feet = mm_to_feet(mm);
return QString("%1%2").arg(feet, 0, 'f', showdecimal ? 1 : 0). arg(showunit ? translate("gettextFromC","ft") : "");
}
}
QString DiveItem::displayDepth() const
{
const int scale = 1000;
QString fract, str;
if (get_units()->length == units::METERS) {
fract = QString::number((unsigned)(dive->maxdepth.mm % scale) / 100);
str = QString("%1.%2").arg((unsigned)(dive->maxdepth.mm / scale)).arg(fract, 1, QChar('0'));
}
if (get_units()->length == units::FEET) {
str = QString::number(mm_to_feet(dive->maxdepth.mm),'f',0);
}
return str;
}
void TestUnitConversion::testUnitConversions()
{
QCOMPARE(IS_FP_SAME(grams_to_lbs(1000), 2.204586), true);
QCOMPARE(lbs_to_grams(1), 454);
QCOMPARE(IS_FP_SAME(ml_to_cuft(1000), 0.0353147), true);
QCOMPARE(IS_FP_SAME(cuft_to_l(1), 28.316847), true);
QCOMPARE(IS_FP_SAME(mm_to_feet(1000), 3.280840), true);
QCOMPARE(feet_to_mm(1), (long unsigned int) 305);
QCOMPARE(to_feet((depth_t){ 1000 }), 3);
QCOMPARE(IS_FP_SAME(mkelvin_to_C(647000), 373.85), true);
QCOMPARE(IS_FP_SAME(mkelvin_to_F(647000), 704.93), true);
QCOMPARE(F_to_mkelvin(704.93), (unsigned long)647000);
QCOMPARE(C_to_mkelvin(373.85), (unsigned long)647000);
QCOMPARE(IS_FP_SAME(psi_to_bar(14.6959488), 1.01325), true);
QCOMPARE(psi_to_mbar(14.6959488), (long)1013);
QCOMPARE(to_PSI((pressure_t){ 1013 }), (int)15);
QCOMPARE(IS_FP_SAME(bar_to_atm(1.013), 1.0), true);
QCOMPARE(IS_FP_SAME(mbar_to_atm(1013), 1.0), true);
QCOMPARE(mbar_to_PSI(1013), (int)15);
get_units();
}
double get_vertical_speed_units(unsigned int mms, int *frac, const char **units)
{
double d;
const char *unit;
const struct units *units_p = get_units();
const double time_factor = units_p->vertical_speed_time == MINUTES ? 60.0 : 1.0;
switch (units_p->length) {
case METERS:
d = mms / 1000.0 * time_factor;
unit = translate("gettextFromC",(units_p->vertical_speed_time == MINUTES) ? "m/min" : "m/s");
break;
case FEET:
d = mm_to_feet(mms) * time_factor;
unit = translate("gettextFromC",(units_p->vertical_speed_time == MINUTES) ? "ft/min" : "ft/s");
break;
}
if (frac)
*frac = d < 10;
if (units)
*units = unit;
return d;
}
double get_depth_units(unsigned int mm, int *frac, const char **units)
{
int decimals;
double d;
const char *unit;
switch (output_units.length) {
case METERS:
d = mm / 1000.0;
unit = "m";
decimals = d < 20;
break;
case FEET:
d = mm_to_feet(mm);
unit = "ft";
decimals = 0;
break;
}
if (frac)
*frac = decimals;
if (units)
*units = unit;
return d;
}
QVariant CylindersModel::data(const QModelIndex& index, int role) const
{
QVariant ret;
if (!index.isValid() || index.row() >= MAX_CYLINDERS)
return ret;
cylinder_t *cyl = ¤t->cylinder[index.row()];
switch (role) {
case Qt::FontRole: {
QFont font = defaultModelFont();
switch (index.column()) {
case START: font.setItalic(!cyl->start.mbar); break;
case END: font.setItalic(!cyl->end.mbar); break;
}
ret = font;
break;
}
case Qt::TextAlignmentRole:
ret = Qt::AlignCenter;
break;
case Qt::DisplayRole:
case Qt::EditRole:
switch(index.column()) {
case TYPE:
ret = QString(cyl->type.description);
break;
case SIZE:
// we can't use get_volume_string because the idiotic imperial tank
// sizes take working pressure into account...
if (cyl->type.size.mliter) {
double volume;
int mbar = cyl->type.workingpressure.mbar;
if (mbar && prefs.units.volume == prefs.units.CUFT) {
volume = ml_to_cuft(cyl->type.size.mliter);
volume *= bar_to_atm(mbar / 1000.0);
} else {
volume = cyl->type.size.mliter / 1000.0;
}
ret = QString("%1").arg(volume, 0, 'f', 1);
}
break;
case WORKINGPRESS:
if (cyl->type.workingpressure.mbar)
ret = get_pressure_string(cyl->type.workingpressure, TRUE);
break;
case START:
if (cyl->start.mbar)
ret = get_pressure_string(cyl->start, FALSE);
else if (cyl->sample_start.mbar)
ret = get_pressure_string(cyl->sample_start, FALSE);
break;
case END:
if (cyl->end.mbar)
ret = get_pressure_string(cyl->end, FALSE);
else if (cyl->sample_end.mbar)
ret = get_pressure_string(cyl->sample_end, FALSE);
break;
case O2:
ret = percent_string(cyl->gasmix.o2);
break;
case HE:
ret = percent_string(cyl->gasmix.he);
break;
case DEPTH:
if (prefs.units.length == prefs.units.FEET)
ret = mm_to_feet(cyl->depth.mm);
else
ret = cyl->depth.mm / 1000;
break;
}
break;
case Qt::DecorationRole:
if (index.column() == REMOVE)
ret = QIcon(":trash");
break;
case Qt::ToolTipRole:
if (index.column() == REMOVE)
ret = tr("Clicking here will remove this cylinder.");
break;
}
return ret;
}
