the start offset into the dash pattern.
the sizes of each dash and gap.
the number of dashes and gaps between them.
the reference count of the struct.
Increments the reference count of the dash pattern.
Sets the start offset into the dash pattern.
the start offset into the dash pattern.
Decrements the reference count of the dash pattern. If it falls to 0 it is freed.
Creates a new dash pattern. Takes ownership of the dashes vector.
a g_new-allocated vector of doubles, the length of each dash and gap.
#GooCanvasLineDash specifies a dash pattern to be used when drawing items.