transparent tables

local function scoreRowRender(event)
    event.background.alpha, event.line.alpha = 0, 0
    local scoreInfo = history:TopScore(event.parent.Source, event.index - 1)
    if not scoreInfo then return end
    local happened = scoreInfo.happened do
        local YYyy, mm, dd, hh, MM, SS = happened:match("(%d%d%d%d)%-(%d%d)%-(%d%d) (%d%d)%:(%d%d)%:(%d%d)")
        happened = os.date("%I:%M%p, %m/%d",
            os.time{year = YYyy, month = mm, day = dd, hour = hh, min = MM, sec = SS}
        )
    end
    local date = display.newEmbossedText(event.view, happened, 0, 0, fonts.crisp, event.target.height * 0.75)
        event.view:insert(date)
        date:setTextColor(colors.wood())
        date:setReferencePoint(display.CenterLeft)
    event.row.Score = display.newEmbossedText(event.view, tostring(scoreInfo.Score), 0, 0, fonts.crisp, event.target.height * 0.75) do local score = event.row.Score
        event.view:insert(score)
        score:setTextColor(colors.wood())
        score:setReferencePoint(display.CenterRightReferencePoint)
        score.x = event.view.width
    end
    event.row.Days = display.newEmbossedText(event.view, tostring(scoreInfo.Days).." days", 0, 0, fonts.crisp, event.target.height * 0.75) do local days = event.row.Days
        event.view:insert(days)
        days:setTextColor(colors.wood())
        days:setReferencePoint(display.CenterRightReferencePoint)
        days.x = event.view.width
        days.isVisible = false
    end
    event.row.Links = display.newEmbossedText(event.view, tostring(scoreInfo.CircuitLength).." links", 0, 0, fonts.crisp, event.target.height * 0.75) do local links = event.row.Links
        event.view:insert(links)
        links:setTextColor(colors.wood())
        links:setReferencePoint(display.CenterRightReferencePoint)
        links.x = event.view.width
        links.isVisible = false
    end
end

local function scoreRowTouch(event)
    if event.phase == "release" then
        if event.row.Score.isVisible then
            event.row.Score.isVisible = false
            event.row.Days.isVisible = true
        elseif event.row.Days.isVisible then
            event.row.Days.isVisible = false
            event.row.Links.isVisible = true
        elseif event.row.Links.isVisible then
            event.row.Links.isVisible = false
            event.row.Score.isVisible = true
        end
    end
    return true
end

local function blank(event)
    event.background.alpha, event.line.alpha = 0, 0
end

local function list(parent, source, top)
    local self = widget.newTableView{
        bgColor = {0, 0, 0, 0},
        left = display.contentWidth * 0.15,
        width = display.contentWidth * 0.7,
        top = display.contentHeight * top,
        height = display.contentHeight * 0.225,
        maskFile = "tableMask.png"
    }
    parent:insert(self)
    self.maskScaleX = display.contentWidth / 640
    self.maskScaleY = self.maskScaleX
    self.Source = source

    self:insertRow{
        height = display.contentHeight * 0.005,
        onRender = blank
    }
    for i=1,15 do
        self:insertRow{
            height = typesize,
            onRender = scoreRowRender,
            onEvent = scoreRowTouch,
        }
    end
    self:insertRow{
        height = display.contentHeight * 0.005,
        onRender = blank
    }
    self:addEventListener('touch', function(...) return true end)
    return self
end