--[[
横向Bar
示例：
	self.tabBar = UIHorTabBar.New(self.tabCon)
	self.tabBar:SetData({"按钮1","按钮2"}, call_back)
	self.tabBar:SetSize(180,60)
	self.tabBar:SetSelectTab(1)
]]
UIHorTabBar = UIHorTabBar or BaseClass(BaseComponent)

function UIHorTabBar:__init(handle_wnd)
	self:CreateGameObject(UIType.UIHorTabBar)
	self.item_list = {}
end

--[[
data = {"标签1","标签2","标签3"}
]]
function UIHorTabBar:SetData( data, call_back )
	self.data = data
	self.call_back = call_back
	local call_back = function ( index )
		self:SetSelectTab(index)
		if self.call_back then
			self.call_back(index)
		end
	end
	for i,v in ipairs(data) do
		local item = self.item_list[i]
		if not item then
			item = UIHorTabBtn.New(self.ScrollViewCon, call_back)
			self.item_list[i] = item
		end
		item:SetVisible(true)
		item:SetText(i, v)
	end
	self:BoolCanClick(true)

	for i=#data+1, #self.item_list do
		self.item_list[i]:SetVisible(false)
	end
end

function UIHorTabBar:BoolCanClick(state)
	self.can_click_state = state
	for k,v in pairs(self.item_list) do
		v:SetCanClick(self.can_click_state)
	end
end

function UIHorTabBar:ShowItemRedDot( index, bool )
	if self.item_list[index] then
		self.item_list[index]:ShowRedDot(bool)
	end
end

function UIHorTabBar:GetSize(  )
	local count = 0
	for k,v in pairs(self.item_list) do
		if v:GetVisible() then
			count = count + 1
		end
	end
	return count
end

function UIHorTabBar:GetTotalSize(  )
	local count = 0
	for k,v in pairs(self.item_list) do
		count = count + 1
	end
	return count
end

function UIHorTabBar:SetSelectTab( index )
	self.cur_index = index
	if self.item_list[self.last_index] then
		self.item_list[self.last_index]:SetSelected(false)
	end
	if self.item_list[self.cur_index] then
		self.item_list[self.cur_index]:SetSelected(true)
	end
	self.last_index = self.cur_index
end

function UIHorTabBar:SetItemVisible( index, bool )
	if self.item_list[index] then
		self.item_list[index]:SetVisible(bool)
	end
end

function UIHorTabBar:GetItemVisible( index )
	if self.item_list[index] then
		return self.item_list[index]:GetVisible()
	end
end

function UIHorTabBar:SetSize( w, h )
	self.grid_layout.cellSize = Vector2(w, h)
end

function UIHorTabBar:SetScrollConPos(x, y)
	local max_width = GetSizeDeltaX(self.ScrollViewCon)
	if max_width > 0 then
		if x > 0 then
			x = 0
		else
			x = math.max(x,-max_width)
		end
		self.ScrollViewCon.transform.localPosition = Vector2(x, y)
	else
		self.con_x = x
		self.con_y = y
		local function delay_method(  )
			self:SetScrollConPos(self.con_x,self.con_y)
		end
		self.delay_time = self.delay_time or setTimeout(delay_method, 0.01)
	end
end

function UIHorTabBar:LoadSuccess()
	self.ScrollView = self:GetChild("ScrollView")
	self.ScrollViewViewport = self:GetChild("ScrollView/Viewport")
	self.ScrollViewCon = self:GetChild("ScrollView/Viewport/Content")
	self.group = self.gameObject:GetComponent("ToggleGroup")
	self.scroll_view_rect = self.ScrollView:GetComponent("ScrollRect")
	self.scroll_view_rect.horizontal = true
	self.scroll_view_rect.vertical = false
	self.grid_layout = self.ScrollViewCon:GetComponent("GridLayoutGroup")
	self.transform.anchoredPosition = Vector2.zero
	self.transform.sizeDelta = Vector2(0, 116)
	self:InitEvent()
end

function UIHorTabBar:SetHorizontal( bool )
	self.scroll_view_rect.horizontal = bool
end

function UIHorTabBar:SetBtnRes( asset, res1, res2 )
	for k,v in pairs(self.item_list) do
		v:SetBtnRes(asset, res1, res2)
	end
end

function UIHorTabBar:SetBtnLabelColor(color1,color2)
	for k,v in pairs(self.item_list) do
		v:SetBtnLabelColor(color1,color2)
	end
end

function UIHorTabBar:SetSpacing( w, h )
	self.grid_layout.spacing = Vector2(w, h)
end

function UIHorTabBar:InitEvent()

end

function UIHorTabBar:GetItemByIndex(index)
	local item = self.item_list[index]
	if not item then
		return
	end
	return item
end

function UIHorTabBar:__delete(  )
	for k,v in pairs(self.item_list) do
		v:DeleteMe()
	end
	self.item_list = {}
end