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path: root/source/blender/blenkernel/intern/unit.c
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Diffstat (limited to 'source/blender/blenkernel/intern/unit.c')
-rw-r--r--source/blender/blenkernel/intern/unit.c126
1 files changed, 90 insertions, 36 deletions
diff --git a/source/blender/blenkernel/intern/unit.c b/source/blender/blenkernel/intern/unit.c
index 5ecc8ddf5b8..fef15f83ccd 100644
--- a/source/blender/blenkernel/intern/unit.c
+++ b/source/blender/blenkernel/intern/unit.c
@@ -30,19 +30,24 @@
/* define a single unit */
typedef struct bUnitDef {
char *name;
- char *name_plural; /* can be NULL */
+ char *name_plural; /* abused a bit for the display name */
char *name_short; /* this is used for display*/
char *name_alt; /* can be NULL */
- double mul;
+ double scalar;
double bias; /* not used yet, needed for converting temperature */
+ int flag;
} bUnitDef;
+#define B_UNIT_DEF_NONE 0
+#define B_UNIT_DEF_SUPPRESS 1 /* Use for units that are not used enough to be translated into for common use */
+
/* define a single unit */
typedef struct bUnitCollection {
struct bUnitDef *units;
int base_unit; /* use for 0.0, or none given */
int flag; /* options for this system */
+ int length; /* to quickly find the last item */
} bUnitCollection;
/* Dummy */
@@ -50,45 +55,49 @@ static struct bUnitDef buDummyDef[] = {
{"", NULL, "", NULL, 1.0, 0.0},
{NULL, NULL, NULL, NULL, 0.0, 0.0}
};
-static struct bUnitCollection buDummyCollecton = {buDummyDef, 0, 0};
+static struct bUnitCollection buDummyCollecton = {buDummyDef, 0, 0, sizeof(buDummyDef)};
/* Lengths */
static struct bUnitDef buMetricLenDef[] = {
- {"kilometer", "kilometers", "km", NULL, 1000.0, 0.0},
- {"meter", "meters", "m", NULL, 1.0, 0.0}, /* base unit */
- {"centimeter", "centimeters", "cm", NULL, 0.01, 0.0},
- {"millimeter", "millimeters", "mm", NULL, 0.001, 0.0},
- {"micrometer", "micrometers", "um", "µm", 0.000001, 0.0}, // micron too?
- {"nanometer", "nanometers", "nm", NULL, 0.000000001, 0.0},
- {"picometer", "picometers", "pm", NULL, 0.000000000001, 0.0},
+ {"kilometer", "Kilometers", "km", NULL, 1000.0, 0.0, B_UNIT_DEF_NONE},
+ {"hectometer", "100 Meters", "hm", NULL, 100.0, 0.0, B_UNIT_DEF_SUPPRESS},
+ {"dekameter", "10 Meters", "dkm",NULL, 10.0, 0.0, B_UNIT_DEF_SUPPRESS},
+ {"meter", "Meters", "m", NULL, 1.0, 0.0, B_UNIT_DEF_NONE}, /* base unit */
+ {"decimetre", "10 Centimeters", "dm", NULL, 0.1, 0.0, B_UNIT_DEF_SUPPRESS},
+ {"centimeter", "Centimeters", "cm", NULL, 0.01, 0.0, B_UNIT_DEF_NONE},
+ {"millimeter", "Millimeters", "mm", NULL, 0.001, 0.0, B_UNIT_DEF_NONE},
+ {"micrometer", "Micrometers", "um", "µm", 0.000001, 0.0, B_UNIT_DEF_NONE}, // micron too?
+ {"nanometer", "Nanometers", "nm", NULL, 0.000000001, 0.0, B_UNIT_DEF_NONE},
+ {"picometer", "Picometers", "pm", NULL, 0.000000000001, 0.0,B_UNIT_DEF_NONE},
{NULL, NULL, NULL, NULL, 0.0, 0.0}
};
-static struct bUnitCollection buMetricLenCollecton = {buMetricLenDef, 1, 0};
+static struct bUnitCollection buMetricLenCollecton = {buMetricLenDef, 1, 0, sizeof(buMetricLenDef)/sizeof(bUnitDef)};
static struct bUnitDef buImperialLenDef[] = {
- {"mile", "miles", "mi", "m", 1609.344, 0.0},
- {"yard", "yards", "yd", NULL, 0.9144, 0.0},
- {"foot", "feet", "'", "ft", 0.3048, 0.0},
- {"inch", "inches", "\"", "in", 0.0254, 0.0}, /* base unit */
- {"thou", "thous", "mil", NULL,0.0000254, 0.0},
+ {"mile", "Miles", "mi", "m", 1609.344, 0.0, B_UNIT_DEF_NONE},
+ {"furlong", "Furlongs", "fur", NULL,201.168, 0.0, B_UNIT_DEF_SUPPRESS},
+ {"yard", "Yards", "yd", NULL, 0.9144, 0.0, B_UNIT_DEF_NONE},
+ {"foot", "Feet", "'", "ft", 0.3048, 0.0, B_UNIT_DEF_NONE},
+ {"inch", "Inches", "\"", "in", 0.0254, 0.0, B_UNIT_DEF_NONE}, /* base unit */
+ {"thou", "Thous", "mil", NULL,0.0000254, 0.0, B_UNIT_DEF_NONE},
{NULL, NULL, NULL, NULL, 0.0, 0.0}
};
-static struct bUnitCollection buImperialLenCollecton = {buImperialLenDef, 2, 0};
+static struct bUnitCollection buImperialLenCollecton = {buImperialLenDef, 2, 0, sizeof(buImperialLenDef)/sizeof(bUnitDef)};
/* Time */
static struct bUnitDef buNaturalTimeDef[] = {
/* weeks? - probably not needed for blender */
- {"day", "days", "d", NULL, 90000.0, 0.0},
- {"hour", "hours", "hr", "h", 3600.0, 0.0},
- {"minute", "minutes", "min", "m", 60.0, 0.0},
- {"second", "seconds", "sec", "s", 1.0, 0.0}, /* base unit */
- {"millisecond", "milliseconds", "ms", NULL, 0.001, 0.0},
- {"microsecond", "microseconds", "us", NULL, 0.000001, 0.0},
+ {"day", "Days", "d", NULL, 90000.0, 0.0, B_UNIT_DEF_NONE},
+ {"hour", "Hours", "hr", "h", 3600.0, 0.0, B_UNIT_DEF_NONE},
+ {"minute", "Minutes", "min", "m", 60.0, 0.0, B_UNIT_DEF_NONE},
+ {"second", "Seconds", "sec", "s", 1.0, 0.0, B_UNIT_DEF_NONE}, /* base unit */
+ {"millisecond", "Milliseconds", "ms", NULL, 0.001, 0.0 , B_UNIT_DEF_NONE},
+ {"microsecond", "Microseconds", "us", NULL, 0.000001, 0.0, B_UNIT_DEF_NONE},
{NULL, NULL, NULL, NULL, 0.0, 0.0}
};
-static struct bUnitCollection buNaturalTimeCollecton = {buNaturalTimeDef, 3, 0};
+static struct bUnitCollection buNaturalTimeCollecton = {buNaturalTimeDef, 3, 0, sizeof(buNaturalTimeDef)/sizeof(bUnitDef)};
#define UNIT_SYSTEM_MAX 3
static struct bUnitCollection *bUnitSystems[][8] = {
@@ -109,14 +118,19 @@ static bUnitDef *unit_default(bUnitCollection *usys)
return &usys->units[usys->base_unit];
}
-static bUnitDef *unit_best_fit(double value, bUnitCollection *usys, bUnitDef *unit_start)
+static bUnitDef *unit_best_fit(double value, bUnitCollection *usys, bUnitDef *unit_start, int suppress)
{
bUnitDef *unit;
double value_abs= value>0.0?value:-value;
- for(unit= unit_start ? unit_start:usys->units; unit->name; unit++)
- if (value_abs >= unit->mul*0.9999) /* scale down mul so 1cm doesnt convert to 10mm because of float error */
+ for(unit= unit_start ? unit_start:usys->units; unit->name; unit++) {
+
+ if(suppress && (unit->flag & B_UNIT_DEF_SUPPRESS))
+ continue;
+
+ if (value_abs >= unit->scalar*0.9999) /* scale down scalar so 1cm doesnt convert to 10mm because of float error */
return unit;
+ }
return unit_default(usys);
}
@@ -127,13 +141,13 @@ static bUnitDef *unit_best_fit(double value, bUnitCollection *usys, bUnitDef *un
static void unit_dual_convert(double value, bUnitCollection *usys,
bUnitDef **unit_a, bUnitDef **unit_b, double *value_a, double *value_b)
{
- bUnitDef *unit= unit_best_fit(value, usys, NULL);
+ bUnitDef *unit= unit_best_fit(value, usys, NULL, 1);
- *value_a= floor(value/unit->mul) * unit->mul;
+ *value_a= floor(value/unit->scalar) * unit->scalar;
*value_b= value - (*value_a);
*unit_a= unit;
- *unit_b= unit_best_fit(*value_b, usys, *unit_a);
+ *unit_b= unit_best_fit(*value_b, usys, *unit_a, 1);
}
static int unit_as_string(char *str, double value, int prec, bUnitCollection *usys,
@@ -151,10 +165,10 @@ static int unit_as_string(char *str, double value, int prec, bUnitCollection *us
unit= unit_default(usys);
}
else {
- unit= unit_best_fit(value, usys, NULL);
+ unit= unit_best_fit(value, usys, NULL, 1);
}
- value_conv= value/unit->mul;
+ value_conv= value/unit->scalar;
/* Convert to a string */
{
@@ -252,7 +266,7 @@ static int unit_scale_str(char *str, char *str_tmp, double scale_pref, bUnitDef
/* next char cannot be alphanum */
if (!isalpha(*(str_found+len_name))) {
int len= strlen(str);
- int len_num= sprintf(str_tmp, "*%g", unit->mul/scale_pref);
+ int len_num= sprintf(str_tmp, "*%g", unit->scalar/scale_pref);
memmove(str_found+len_num, str_found+len_name, (len+1)-(int)((str_found+len_name)-str)); /* may grow or shrink the string, 1+ to copy the string terminator */
memcpy(str_found, str_tmp, len_num); /* without the string terminator */
change= 1;
@@ -299,6 +313,10 @@ int bUnit_ReplaceString(char *str, char *str_orig, char *str_prev, double scale_
}
for(unit= usys->units; unit->name; unit++) {
+
+ if(unit->flag & B_UNIT_DEF_SUPPRESS)
+ continue;
+
/* incase there are multiple instances */
while(unit_replace(str, str_tmp, scale_pref, unit))
change= 1;
@@ -314,6 +332,10 @@ int bUnit_ReplaceString(char *str, char *str_orig, char *str_prev, double scale_
if (system_iter != system) {
usys_iter= unit_get_system(system_iter, type);
for(unit= usys_iter->units; unit->name; unit++) {
+
+ if(unit->flag & B_UNIT_DEF_SUPPRESS)
+ continue;
+
/* incase there are multiple instances */
while(unit_replace(str, str_tmp, scale_pref, unit))
change= 1;
@@ -329,6 +351,10 @@ int bUnit_ReplaceString(char *str, char *str_orig, char *str_prev, double scale_
/* see which units the original value had */
strcpy(str, str_prev); /* temp overwrite */
for(unit= usys->units; unit->name; unit++) {
+
+ if(unit->flag & B_UNIT_DEF_SUPPRESS)
+ continue;
+
if (unit_replace(str, str_tmp, scale_pref, unit))
break;
}
@@ -349,7 +375,7 @@ int bUnit_ReplaceString(char *str, char *str_orig, char *str_prev, double scale_
}
-double bUnit_Size(double value, int system, int type)
+double bUnit_ClosestScalar(double value, int system, int type)
{
bUnitCollection *usys = unit_get_system(system, type);
bUnitDef *unit;
@@ -357,9 +383,37 @@ double bUnit_Size(double value, int system, int type)
if(usys==NULL)
return -1;
- unit= unit_best_fit(value, usys, NULL);
+ unit= unit_best_fit(value, usys, NULL, 1);
if(unit==NULL)
return -1;
- return unit->mul;
+ return unit->scalar;
+}
+
+/* external access */
+void bUnit_GetSystem(void **usys_pt, int *len, int system, int type)
+{
+ bUnitCollection *usys = unit_get_system(system, type);
+ *usys_pt= usys;
+
+ if(usys==NULL) {
+ *len= 0;
+ return;
+ }
+
+ *len= usys->length;
+}
+
+char *bUnit_GetName(void *usys_pt, int index)
+{
+ return ((bUnitCollection *)usys_pt)->units[index].name;
+}
+char *bUnit_GetNamePlural(void *usys_pt, int index)
+{
+ return ((bUnitCollection *)usys_pt)->units[index].name_plural;
+}
+
+double bUnit_GetScaler(void *usys_pt, int index)
+{
+ return ((bUnitCollection *)usys_pt)->units[index].scalar;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 22:48:04 +0300