local loqbutton = require("loq_ui_button")
 
local groups = nil        -- The containers for elements on the stage.  They are either the layer groups or element groups.
local dimensions = nil    -- The dimensions of the container groups.
local elements = nil      -- The elements in the element groups; either sprites or buttons referencing sprites.
 
local function createLayout(_spriteFactory)
        assert(_spriteFactory ~= nil, "Error in createLayout: _spriteFactory argument cannot be nil")
        -- layout0
        groups = {}
        dimensions = {}
        elements = {}
        local group = nil
        groups['layout0'] = display.newGroup()
 
        -- new group
        groups['Layer 1'] = display.newGroup()
        groups['layout0']:insert(groups['Layer 1'])
 
        -- new sprite
        elements._element0 = _spriteFactory:newSpriteGroup("play_up")
        group = elements._element0
        groups['_element0'] = group
        group.elementName = '_element0'
        group.libraryName = "play_up"
        groups['Layer 1']:insert(group)
        group.x = -86
        group.y = -28
        dimensions['_element0'] = {width = 172, height = 56}
 
 
        -- end layout0
        return {groups = groups, dimensions = dimensions, elements = elements}
end
 
local function removeElements(_elementGroup)
        local i = _elementGroup.numChildren
        while i > 0 do
                _elementGroup[i]:removeSelf()
                i = i - 1
        end
        _elementGroup:removeSelf()
end
 
local function clearLayout()
        removeElements(groups['_element0'])
        groups['Layer 1']:removeSelf()
 
        groups['layout0']:removeSelf()
        groups = nil
        dimensions = nil
        elements = nil
end
 
return {
        createLayout = createLayout,
        clearLayout = clearLayout
        }