local UIDescriptionPanel = UIViewClass()

local HalfResolutionX = UnityEngine.Screen.width / 2
local HalfResolutionY = UnityEngine.Screen.height / 2
-- @params posType 方位参数 参见LuaConst.DescriptionPanelType
-- @params target 目标物体
-- @params text 显示描述文本
function UIDescriptionPanel:OnOpened(context)
    UTL.String.SetLabelContent(self.txt_FrameInfo, context.text)

    local showPosType = context.posType and context.posType or LuaConst.DescriptionPanelType.Center

    if showPosType == LuaConst.DescriptionPanelType.Center then
    	self.bg.transform:SetAnchoredPosition(0, 0)
    elseif context.target then
        -- TODO 创建通用接口计算局部坐标位置
    	self.bg.transform:SetParent(context.target.transform, true)
    	self.bg.transform:SetAnchoredPosition(0, 0)
    	self.bg.transform:SetParent(self.group_FrameInfo.transform, true)

	    local anchorPosX, anchorPosY = self.bg.transform:GetAnchoredPosition()
    	local anchorOffsetX, anchorOffsetY = self.bg.transform:GetSizeDelta()
    	anchorOffsetX = anchorOffsetX / 2
    	anchorOffsetY = anchorOffsetY / 2

		if showPosType == LuaConst.DescriptionPanelType.LeftUpper then
			anchorOffsetY = -anchorOffsetY
		elseif showPosType == LuaConst.DescriptionPanelType.RightUpper then
			anchorOffsetX = -anchorOffsetX
			anchorOffsetY = -anchorOffsetY
		elseif showPosType == LuaConst.DescriptionPanelType.RightLower then
			anchorOffsetX = -anchorOffsetX
    	end

        local setAnchorPosX = anchorPosX + anchorOffsetX
        local setAnchorPosY = anchorPosY + anchorOffsetY
        -- 检测是否超出屏幕外
        if setAnchorPosX + anchorOffsetX > HalfResolutionX then
            setAnchorPosX = HalfResolutionX - anchorOffsetX
        elseif setAnchorPosX - anchorOffsetX < -HalfResolutionX then
            setAnchorPosX = -HalfResolutionX + anchorOffsetX
        elseif setAnchorPosY + anchorOffsetY > HalfResolutionY then
            setAnchorPosY = HalfResolutionY - anchorOffsetY
        elseif setAnchorPosY - anchorOffsetY < -HalfResolutionY then
            setAnchorPosY = -HalfResolutionY + anchorOffsetY
        end
        local offsetX = context.offsetX or 0
        local offsetY = context.offsetY or 0
    	self.bg.transform:SetAnchoredPosition(setAnchorPosX + offsetX, setAnchorPosY + offsetY)
    end
end


function UIDescriptionPanel:OnButtonClicked(comp)
    if comp == self.img_Back then
        self:CloseView()
    end
end


return UIDescriptionPanel