Separate GEF_NOT_SHOWED and GEF_HIDDEN flags. GEF_HIDDEN mark a geo (shape) can not be showed, GEF_NOT_SHOWED is implied by GEF_HIDDEN or one of ancesters that is hidden. Redraw manager use GEF_NOT_SHOWED to determine who is not showed, actually. GEF_NOT_SHOWED is flaged when clean_shape().

#ifndef __MB_BASIC_TYPES_H_
#define __MB_BASIC_TYPES_H_

typedef float co_aix;
typedef float co_comp_t;
typedef struct _grad_stop {
    co_aix offset;
    co_comp_t r, g, b, a;
} grad_stop_t;

#endif /* __MB_BASIC_TYPES_H_ */