How to use LineMixin?

[thomasjohnshannon]

Does anyone know how to use the LineMixin? I tried messing around with it but I'm not sure how to properly mix it with a texture.

-- Mix this into a Texture to be able to treat it like a line
LineMixin = {};
 
function LineMixin:SetStartPoint(x, y)
    self.startX, self.startY = x, y;
end
 
function LineMixin:SetEndPoint(x, y)
    self.endX, self.endY = x, y;
end
 
function LineMixin:SetThickness(thickness)
    self.thickness = thickness;
end
 
function LineMixin:Draw()
    local parent = self:GetParent();
    local x, y = parent:GetLeft(), parent:GetBottom();
 
    self:ClearAllPoints();
    DrawLine(self, parent, self.startX - x, self.startY - y, self.endX - x, self.endY - y, self.thickness or 32, 1);
end