newImage wrapper

local _M = {}

-- Set reference point
function _M.setRP (object, ref_point)
    ref_point = string.lower(ref_point)
    if ref_point == 'topleft' then
        object:setReferencePoint(display.TopLeftReferencePoint)
    elseif ref_point == 'topright' then
        object:setReferencePoint(display.TopRightReferencePoint)
    elseif ref_point == 'topcenter' then
        object:setReferencePoint(display.TopCenterReferencePoint)
    elseif ref_point == 'bottomleft' then
        object:setReferencePoint(display.BottomLeftReferencePoint)
    elseif ref_point == 'bottomright' then
        object:setReferencePoint(display.BottomRightReferencePoint)
    elseif ref_point == 'bottomcenter' then
        object:setReferencePoint(display.BottomCenterReferencePoint)
    elseif ref_point == 'centerleft' then
        object:setReferencePoint(display.CenterLeftReferencePoint)
    elseif ref_point == 'centerright' then
        object:setReferencePoint(display.CenterRightReferencePoint)
    elseif ref_point == 'center' then
        object:setReferencePoint(display.CenterReferencePoint)
    end
end

function _M.newImage (filename, params)
    params = params or {} -- allow to pass filename only
    local w, h = params.w or 480, params.h or 320 --some values you use more often
    -- Load an image
    local image = display.newImageRect(filename, w, h)
    -- Set reference point
    if params.rp then
        _M.setRP(image, params.rp)
    end
    if params.g then
        g:insert(image)
    end
    -- Place it to desired position
    image.x = params.x or 0
    image.y = params.y or 0
    return image
end

return _M