int main(void)
{
int freezing = 32;
int boiling = 212;
printf("32 in F is %g in C\n", f_to_c(freezing));
printf("212 in F is %g in C\n", f_to_c(boiling));
return 0;
}
G_MODULE_EXPORT gdouble temp_to_ecu(gdouble in)
{
gdouble res = 0.0;
static Firmware_Details *firmware = NULL;
TempUnits mtx_temp_units = (TempUnits)DATA_GET(global_data,"mtx_temp_units");
if (!firmware)
firmware = DATA_GET(global_data,"firmware");
g_return_val_if_fail(firmware,in);
g_return_val_if_fail(DATA_GET(global_data,"mtx_temp_units"),in);
if(firmware->ecu_temp_units == mtx_temp_units)
res = in;
else if ((firmware->ecu_temp_units == CELSIUS) && (mtx_temp_units == FAHRENHEIT))
res = f_to_c(in);
else if ((firmware->ecu_temp_units == CELSIUS) && (mtx_temp_units == KELVIN))
res = k_to_c(in);
else if ((firmware->ecu_temp_units == FAHRENHEIT) && (mtx_temp_units == KELVIN))
res = k_to_f(in);
else if ((firmware->ecu_temp_units == FAHRENHEIT) && (mtx_temp_units == CELSIUS))
res = c_to_f(in);
else if ((firmware->ecu_temp_units == KELVIN) && (mtx_temp_units == CELSIUS))
res = c_to_k(in);
else if ((firmware->ecu_temp_units == KELVIN) && (mtx_temp_units == FAHRENHEIT))
res = f_to_k(in);
else
{
printf("temp_to_ecu(): BUG couldn't figure out temp conversion!\n");
res = in;
}
return res;
}
int main(void)
{
double f = 64;
double c = f_to_c(f);
printf("%f\n", c);
return 0;
}
main(){
int i;
printf("%13s %13s\n","Fahrenheit", "Celcius");
for (i=FREEZING; i<(BOILING+1); i+=10){
printf("%13d %13.1f\n",i, f_to_c(i));
}
}
/* print fahrenheit-celcius table using a function */
main()
{
int fahr, celcius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
while(fahr <= upper) {
printf("%d\t%d\n", fahr, f_to_c(fahr));
fahr = fahr + step;
}
}
/*!
\brief convert_temps() changes the values of controls based on the currently
selected temperature scale. IT works for labels, spinbuttons, etc...
\param widget (gpointer) pointer to the widget that contains the necessary
paramaters re temp (Alt label, etc)
\param units (gpointer) the temp scale selected
*/
G_MODULE_EXPORT void convert_temps(gpointer widget, gpointer units)
{
static void (*update_widget_f)(gpointer, gpointer);
static gboolean (*check_deps)(gconstpointer *) = NULL;
gconstpointer *dep_obj = NULL;
gfloat upper = 0.0;
gfloat lower = 0.0;
gfloat value = 0.0;
gchar * text = NULL;
GtkAdjustment * adj = NULL;
gboolean state = FALSE;
gint widget_temp = -1;
/*extern GdkColor black;*/
extern gconstpointer *global_data;
/* If this widgt depends on anything call check_dependancy which will
* return TRUE/FALSE. True if what it depends on is in the matching
* state, FALSE otherwise...
*/
if ((!widget) || (DATA_GET(global_data,"leaving")))
return;
if (!check_deps)
if (!get_symbol("check_dependancies",(void *)&check_deps))
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tCan NOT locate \"check_dependancies\" function pointer in plugins, BUG!\n"));
if (!update_widget_f)
if(!get_symbol("update_widget",(void *)&update_widget_f))
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tCan NOT locate \"update_widget\" function pointer in plugins, BUG!\n"));
dep_obj = (gconstpointer *)OBJ_GET(widget,"dep_object");
widget_temp = (GINT)OBJ_GET(widget,"widget_temp");
if (dep_obj)
{
if (check_deps)
state = check_deps(dep_obj);
else
dbg_func(CRITICAL|CONVERSIONS,g_strdup_printf(__FILE__": convert_temps()\n\tWidget %s has dependant object bound but can't locate function ptr for \"check_dependancies\" from plugins, BUG!\n",glade_get_widget_name(widget)));
}
switch ((TempUnits)units)
{
case FAHRENHEIT:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_f_label");
else
text = (gchar *)OBJ_GET(widget,"f_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != FAHRENHEIT))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == CELSIUS)
{
adj->value = c_to_f(value);
adj->lower = c_to_f(lower);
adj->upper = c_to_f(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_f(value);
adj->lower = k_to_f(lower);
adj->upper = k_to_f(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != FAHRENHEIT))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != FAHRENHEIT))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == CELSIUS)
{
adj->value = c_to_f(value);
adj->lower = c_to_f(lower);
adj->upper = c_to_f(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_f(value);
adj->lower = k_to_f(lower);
adj->upper = k_to_f(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
case CELSIUS:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_c_label");
else
text = (gchar *)OBJ_GET(widget,"c_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != CELSIUS))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_c(value);
adj->lower = f_to_c(lower);
adj->upper = f_to_c(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_c(value);
adj->lower = k_to_c(lower);
adj->upper = k_to_c(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != CELSIUS))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != CELSIUS))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_c(value);
adj->lower = f_to_c(lower);
adj->upper = f_to_c(upper);
}
else /* Previous is kelvin */
{
adj->value = k_to_c(value);
adj->lower = k_to_c(lower);
adj->upper = k_to_c(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
case KELVIN:
/*printf("fahr %s\n",glade_get_widget_name(widget));*/
if (GTK_IS_LABEL(widget))
{
if ((dep_obj) && (state))
text = (gchar *)OBJ_GET(widget,"alt_k_label");
else
text = (gchar *)OBJ_GET(widget,"k_label");
gtk_label_set_text(GTK_LABEL(widget),text);
//gtk_widget_modify_text(widget,GTK_STATE_NORMAL,&black);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
if ((GTK_IS_SPIN_BUTTON(widget)) && (widget_temp != KELVIN))
{
adj = (GtkAdjustment *) gtk_spin_button_get_adjustment(
GTK_SPIN_BUTTON(widget));
upper = adj->upper;
value = adj->value;
lower = adj->lower;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_k(value);
adj->lower = f_to_k(lower);
adj->upper = f_to_k(upper);
}
else /* Previous is celsius */
{
adj->value = c_to_k(value);
adj->lower = c_to_k(lower);
adj->upper = c_to_k(upper);
}
gtk_adjustment_changed(adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_ENTRY(widget)) && (widget_temp != KELVIN))
{
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
update_widget_f(widget,NULL);
}
if ((GTK_IS_RANGE(widget)) && (widget_temp != KELVIN))
{
adj = (GtkAdjustment *) gtk_range_get_adjustment(
GTK_RANGE(widget));
upper = adj->upper;
lower = adj->lower;
value = adj->value;
if (widget_temp == FAHRENHEIT)
{
adj->value = f_to_k(value);
adj->lower = f_to_k(lower);
adj->upper = f_to_k(upper);
}
else /* Previous is celsius */
{
adj->value = c_to_k(value);
adj->lower = c_to_k(lower);
adj->upper = c_to_k(upper);
}
gtk_range_set_adjustment(GTK_RANGE(widget),adj);
OBJ_SET(widget,"widget_temp",GINT_TO_POINTER(units));
}
break;
}
}
