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175 lines
3.4 KiB
C
175 lines
3.4 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include "units.h"
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#include "gettext.h"
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int get_pressure_units(int mb, const char **units)
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{
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int pressure;
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const char *unit;
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const struct units *units_p = get_units();
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switch (units_p->pressure) {
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case PASCAL:
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pressure = mb * 100;
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unit = translate("gettextFromC", "pascal");
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break;
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case BAR:
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default:
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pressure = (mb + 500) / 1000;
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unit = translate("gettextFromC", "bar");
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break;
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case PSI:
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pressure = mbar_to_PSI(mb);
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unit = translate("gettextFromC", "psi");
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break;
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}
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if (units)
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*units = unit;
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return pressure;
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}
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double get_temp_units(unsigned int mk, const char **units)
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{
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double deg;
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const char *unit;
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const struct units *units_p = get_units();
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if (units_p->temperature == FAHRENHEIT) {
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deg = mkelvin_to_F(mk);
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unit = "°F";
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} else {
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deg = mkelvin_to_C(mk);
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unit = "°C";
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}
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if (units)
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*units = unit;
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return deg;
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}
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double get_volume_units(unsigned int ml, int *frac, const char **units)
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{
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int decimals;
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double vol;
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const char *unit;
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const struct units *units_p = get_units();
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switch (units_p->volume) {
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case LITER:
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default:
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vol = ml / 1000.0;
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unit = translate("gettextFromC", "ℓ");
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decimals = 1;
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break;
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case CUFT:
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vol = ml_to_cuft(ml);
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unit = translate("gettextFromC", "cuft");
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decimals = 2;
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break;
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}
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if (frac)
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*frac = decimals;
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if (units)
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*units = unit;
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return vol;
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}
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int units_to_sac(double volume)
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{
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if (get_units()->volume == CUFT)
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return lrint(cuft_to_l(volume) * 1000.0);
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else
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return lrint(volume * 1000);
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}
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depth_t units_to_depth(double depth)
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{
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depth_t internaldepth;
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if (get_units()->length == METERS) {
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internaldepth.mm = lrint(depth * 1000);
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} else {
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internaldepth.mm = feet_to_mm(depth);
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}
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return internaldepth;
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}
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double get_depth_units(int mm, int *frac, const char **units)
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{
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int decimals;
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double d;
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const char *unit;
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const struct units *units_p = get_units();
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switch (units_p->length) {
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case METERS:
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default:
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d = mm / 1000.0;
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unit = translate("gettextFromC", "m");
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decimals = d < 20;
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break;
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case FEET:
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d = mm_to_feet(mm);
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unit = translate("gettextFromC", "ft");
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decimals = 0;
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break;
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}
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if (frac)
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*frac = decimals;
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if (units)
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*units = unit;
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return d;
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}
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double get_vertical_speed_units(unsigned int mms, int *frac, const char **units)
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{
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double d;
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const char *unit;
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const struct units *units_p = get_units();
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const double time_factor = units_p->vertical_speed_time == MINUTES ? 60.0 : 1.0;
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switch (units_p->length) {
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case METERS:
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default:
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d = mms / 1000.0 * time_factor;
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if (units_p->vertical_speed_time == MINUTES)
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unit = translate("gettextFromC", "m/min");
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else
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unit = translate("gettextFromC", "m/s");
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break;
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case FEET:
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d = mm_to_feet(mms) * time_factor;
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if (units_p->vertical_speed_time == MINUTES)
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unit = translate("gettextFromC", "ft/min");
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else
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unit = translate("gettextFromC", "ft/s");
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break;
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}
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if (frac)
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*frac = d < 10;
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if (units)
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*units = unit;
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return d;
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}
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double get_weight_units(unsigned int grams, int *frac, const char **units)
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{
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int decimals;
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double value;
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const char *unit;
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const struct units *units_p = get_units();
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if (units_p->weight == LBS) {
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value = grams_to_lbs(grams);
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unit = translate("gettextFromC", "lbs");
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decimals = 0;
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} else {
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value = grams / 1000.0;
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unit = translate("gettextFromC", "kg");
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decimals = 1;
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}
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if (frac)
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*frac = decimals;
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if (units)
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*units = unit;
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return value;
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}
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