These constants define text alignment.

Values:

IG_VECT_ALIGN_DEFAULT	Default alignment.
IG_VECT_ALIGN_X_LEFT	x left alignment.
IG_VECT_ALIGN_X_CENTER	x center alignment.
IG_VECT_ALIGN_X_RIGHT	x right alignment.
IG_VECT_ALIGN_Y_TOP	y top alignment.
IG_VECT_ALIGN_Y_CENTER	y center alignment.
IG_VECT_ALIGN_Y_BOTTOM	y bottom alignment.
IG_VECT_ALIGN_Y_BASELINE	Base line alignment.
IG_VECT_ALIGN_CONTINUOUSX	The additional align point is used for x alignment.
IG_VECT_ALIGN_CONTINUOUSY	The additional align point is used for y alignment.
IG_VECT_RESTRICT	The flag defining that the text is restricted.
IG_VECT_RESTRICT_BASIS	The text is exactly restricted in the restrict box by the base line.
IG_VECT_RESTRICT_BOXED_CAP	The text is exactly restricted in the restrict box by the bottom.
IG_VECT_RESTRICT_BOXED_ALL	The same as IG_VECT_RESTRICT_BASIS at the moment.
IG_VECT_RESTRICT_ISOTROPIC_CAP	Isotropic restriction in the restrict box by the bottom.
IG_VECT_RESTRICT_ISOTROPIC_ALL	Isotropic restriction in the restrict box by the base line.
IG_VECT_RESTRICT_JUSTIFIED	The text is justified inside the restriction box using variable spacing.