beremiz

SVGHMI: detachable and discardable elements sets, Reworked geometric intersection, toward more accurate page content detection.
svghmi
2020-02-28, Edouard Tisserant
eee5dcd9fc92
SVGHMI: detachable and discardable elements sets, Reworked geometric intersection, toward more accurate page content detection.

Moved page's widget/element dependency crawling functions so that it is possible to compute a global detachable and discardable elements sets.
Reworked geometric intersection detection logic to distinguish ovelapping and inclusion.
Goal is to include englobing and overlapping graphical elements, but not groups (would then include everything around...). Intermediate commit, to be continued.
#define __Unpack_case_t(TYPENAME) \
case TYPENAME##_ENUM :\
*flags = ((__IEC_##TYPENAME##_t *)varp)->flags;\
forced_value_p = *real_value_p = &((__IEC_##TYPENAME##_t *)varp)->value;\
break;
#define __Unpack_case_p(TYPENAME)\
case TYPENAME##_O_ENUM :\
*flags = __IEC_OUTPUT_FLAG;\
case TYPENAME##_P_ENUM :\
*flags |= ((__IEC_##TYPENAME##_p *)varp)->flags;\
*real_value_p = ((__IEC_##TYPENAME##_p *)varp)->value;\
forced_value_p = &((__IEC_##TYPENAME##_p *)varp)->fvalue;\
break;
#define __Is_a_string(dsc) (dsc->type == STRING_ENUM) ||\
(dsc->type == STRING_P_ENUM) ||\
(dsc->type == STRING_O_ENUM)
static void* UnpackVar(__Unpack_desc_type *dsc, void **real_value_p, char *flags)
{
void *varp = dsc->ptr;
void *forced_value_p = NULL;
*flags = 0;
/* find data to copy*/
switch(dsc->type){
__ANY(__Unpack_case_t)
__ANY(__Unpack_case_p)
default:
break;
}
if (*flags & __IEC_FORCE_FLAG)
return forced_value_p;
return *real_value_p;
}