tercio@0: --[[-----------------------------------------------------------------------------
tercio@0: TabGroup Container
tercio@0: Container that uses tabs on top to switch between groups.
tercio@0: -------------------------------------------------------------------------------]]
tercio@0: local Type, Version = "TabGroup", 35
tercio@0: local AceGUI = LibStub and LibStub("AceGUI-3.0", true)
tercio@0: if not AceGUI or (AceGUI:GetWidgetVersion(Type) or 0) >= Version then return end
tercio@0: 
tercio@0: -- Lua APIs
tercio@0: local pairs, ipairs, assert, type, wipe = pairs, ipairs, assert, type, wipe
tercio@0: 
tercio@0: -- WoW APIs
tercio@0: local PlaySound = PlaySound
tercio@0: local CreateFrame, UIParent = CreateFrame, UIParent
tercio@0: local _G = _G
tercio@0: 
tercio@0: -- Global vars/functions that we don't upvalue since they might get hooked, or upgraded
tercio@0: -- List them here for Mikk's FindGlobals script
tercio@0: -- GLOBALS: PanelTemplates_TabResize, PanelTemplates_SetDisabledTabState, PanelTemplates_SelectTab, PanelTemplates_DeselectTab
tercio@0: 
tercio@0: -- local upvalue storage used by BuildTabs
tercio@0: local widths = {}
tercio@0: local rowwidths = {}
tercio@0: local rowends = {}
tercio@0: 
tercio@0: --[[-----------------------------------------------------------------------------
tercio@0: Support functions
tercio@0: -------------------------------------------------------------------------------]]
tercio@0: local function UpdateTabLook(frame)
tercio@0: 	if frame.disabled then
tercio@0: 		PanelTemplates_SetDisabledTabState(frame)
tercio@0: 	elseif frame.selected then
tercio@0: 		PanelTemplates_SelectTab(frame)
tercio@0: 	else
tercio@0: 		PanelTemplates_DeselectTab(frame)
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: local function Tab_SetText(frame, text)
tercio@0: 	frame:_SetText(text)
tercio@0: 	local width = frame.obj.frame.width or frame.obj.frame:GetWidth() or 0
tercio@0: 	PanelTemplates_TabResize(frame, 0, nil, nil, width, frame:GetFontString():GetStringWidth())
tercio@0: end
tercio@0: 
tercio@0: local function Tab_SetSelected(frame, selected)
tercio@0: 	frame.selected = selected
tercio@0: 	UpdateTabLook(frame)
tercio@0: end
tercio@0: 
tercio@0: local function Tab_SetDisabled(frame, disabled)
tercio@0: 	frame.disabled = disabled
tercio@0: 	UpdateTabLook(frame)
tercio@0: end
tercio@0: 
tercio@0: local function BuildTabsOnUpdate(frame)
tercio@0: 	local self = frame.obj
tercio@0: 	self:BuildTabs()
tercio@0: 	frame:SetScript("OnUpdate", nil)
tercio@0: end
tercio@0: 
tercio@0: --[[-----------------------------------------------------------------------------
tercio@0: Scripts
tercio@0: -------------------------------------------------------------------------------]]
tercio@0: local function Tab_OnClick(frame)
tercio@0: 	if not (frame.selected or frame.disabled) then
tercio@0: 		PlaySound("igCharacterInfoTab")
tercio@0: 		frame.obj:SelectTab(frame.value)
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: local function Tab_OnEnter(frame)
tercio@0: 	local self = frame.obj
tercio@0: 	self:Fire("OnTabEnter", self.tabs[frame.id].value, frame)
tercio@0: end
tercio@0: 
tercio@0: local function Tab_OnLeave(frame)
tercio@0: 	local self = frame.obj
tercio@0: 	self:Fire("OnTabLeave", self.tabs[frame.id].value, frame)
tercio@0: end
tercio@0: 
tercio@0: local function Tab_OnShow(frame)
tercio@0: 	_G[frame:GetName().."HighlightTexture"]:SetWidth(frame:GetTextWidth() + 30)
tercio@0: end
tercio@0: 
tercio@0: --[[-----------------------------------------------------------------------------
tercio@0: Methods
tercio@0: -------------------------------------------------------------------------------]]
tercio@0: local methods = {
tercio@0: 	["OnAcquire"] = function(self)
tercio@0: 		self:SetTitle()
tercio@0: 	end,
tercio@0: 
tercio@0: 	["OnRelease"] = function(self)
tercio@0: 		self.status = nil
tercio@0: 		for k in pairs(self.localstatus) do
tercio@0: 			self.localstatus[k] = nil
tercio@0: 		end
tercio@0: 		self.tablist = nil
tercio@0: 		for _, tab in pairs(self.tabs) do
tercio@0: 			tab:Hide()
tercio@0: 		end
tercio@0: 	end,
tercio@0: 
tercio@0: 	["CreateTab"] = function(self, id)
tercio@0: 		local tabname = ("AceGUITabGroup%dTab%d"):format(self.num, id)
tercio@0: 		local tab = CreateFrame("Button", tabname, self.border, "OptionsFrameTabButtonTemplate")
tercio@0: 		tab.obj = self
tercio@0: 		tab.id = id
tercio@0: 
tercio@0: 		tab.text = _G[tabname .. "Text"]
tercio@0: 		tab.text:ClearAllPoints()
tercio@0: 		tab.text:SetPoint("LEFT", 14, -3)
tercio@0: 		tab.text:SetPoint("RIGHT", -12, -3)
tercio@0: 
tercio@0: 		tab:SetScript("OnClick", Tab_OnClick)
tercio@0: 		tab:SetScript("OnEnter", Tab_OnEnter)
tercio@0: 		tab:SetScript("OnLeave", Tab_OnLeave)
tercio@0: 		tab:SetScript("OnShow", Tab_OnShow)
tercio@0: 
tercio@0: 		tab._SetText = tab.SetText
tercio@0: 		tab.SetText = Tab_SetText
tercio@0: 		tab.SetSelected = Tab_SetSelected
tercio@0: 		tab.SetDisabled = Tab_SetDisabled
tercio@0: 
tercio@0: 		return tab
tercio@0: 	end,
tercio@0: 
tercio@0: 	["SetTitle"] = function(self, text)
tercio@0: 		self.titletext:SetText(text or "")
tercio@0: 		if text and text ~= "" then
tercio@0: 			self.alignoffset = 25
tercio@0: 		else
tercio@0: 			self.alignoffset = 18
tercio@0: 		end
tercio@0: 		self:BuildTabs()
tercio@0: 	end,
tercio@0: 
tercio@0: 	["SetStatusTable"] = function(self, status)
tercio@0: 		assert(type(status) == "table")
tercio@0: 		self.status = status
tercio@0: 	end,
tercio@0: 
tercio@0: 	["SelectTab"] = function(self, value)
tercio@0: 		local status = self.status or self.localstatus
tercio@0: 		local found
tercio@0: 		for i, v in ipairs(self.tabs) do
tercio@0: 			if v.value == value then
tercio@0: 				v:SetSelected(true)
tercio@0: 				found = true
tercio@0: 			else
tercio@0: 				v:SetSelected(false)
tercio@0: 			end
tercio@0: 		end
tercio@0: 		status.selected = value
tercio@0: 		if found then
tercio@0: 			self:Fire("OnGroupSelected",value)
tercio@0: 		end
tercio@0: 	end,
tercio@0: 
tercio@0: 	["SetTabs"] = function(self, tabs)
tercio@0: 		self.tablist = tabs
tercio@0: 		self:BuildTabs()
tercio@0: 	end,
tercio@0: 	
tercio@0: 
tercio@0: 	["BuildTabs"] = function(self)
tercio@0: 		local hastitle = (self.titletext:GetText() and self.titletext:GetText() ~= "")
tercio@0: 		local status = self.status or self.localstatus
tercio@0: 		local tablist = self.tablist
tercio@0: 		local tabs = self.tabs
tercio@0: 		
tercio@0: 		if not tablist then return end
tercio@0: 		
tercio@0: 		local width = self.frame.width or self.frame:GetWidth() or 0
tercio@0: 		
tercio@0: 		wipe(widths)
tercio@0: 		wipe(rowwidths)
tercio@0: 		wipe(rowends)
tercio@0: 		
tercio@0: 		--Place Text into tabs and get thier initial width
tercio@0: 		for i, v in ipairs(tablist) do
tercio@0: 			local tab = tabs[i]
tercio@0: 			if not tab then
tercio@0: 				tab = self:CreateTab(i)
tercio@0: 				tabs[i] = tab
tercio@0: 			end
tercio@0: 			
tercio@0: 			tab:Show()
tercio@0: 			tab:SetText(v.text)
tercio@0: 			tab:SetDisabled(v.disabled)
tercio@0: 			tab.value = v.value
tercio@0: 			
tercio@0: 			widths[i] = tab:GetWidth() - 6 --tabs are anchored 10 pixels from the right side of the previous one to reduce spacing, but add a fixed 4px padding for the text
tercio@0: 		end
tercio@0: 		
tercio@0: 		for i = (#tablist)+1, #tabs, 1 do
tercio@0: 			tabs[i]:Hide()
tercio@0: 		end
tercio@0: 		
tercio@0: 		--First pass, find the minimum number of rows needed to hold all tabs and the initial tab layout
tercio@0: 		local numtabs = #tablist
tercio@0: 		local numrows = 1
tercio@0: 		local usedwidth = 0
tercio@0: 
tercio@0: 		for i = 1, #tablist do
tercio@0: 			--If this is not the first tab of a row and there isn't room for it
tercio@0: 			if usedwidth ~= 0 and (width - usedwidth - widths[i]) < 0 then
tercio@0: 				rowwidths[numrows] = usedwidth + 10 --first tab in each row takes up an extra 10px
tercio@0: 				rowends[numrows] = i - 1
tercio@0: 				numrows = numrows + 1
tercio@0: 				usedwidth = 0
tercio@0: 			end
tercio@0: 			usedwidth = usedwidth + widths[i]
tercio@0: 		end
tercio@0: 		rowwidths[numrows] = usedwidth + 10 --first tab in each row takes up an extra 10px
tercio@0: 		rowends[numrows] = #tablist
tercio@0: 		
tercio@0: 		--Fix for single tabs being left on the last row, move a tab from the row above if applicable
tercio@0: 		if numrows > 1 then
tercio@0: 			--if the last row has only one tab
tercio@0: 			if rowends[numrows-1] == numtabs-1 then
tercio@0: 				--if there are more than 2 tabs in the 2nd last row
tercio@0: 				if (numrows == 2 and rowends[numrows-1] > 2) or (rowends[numrows] - rowends[numrows-1] > 2) then
tercio@0: 					--move 1 tab from the second last row to the last, if there is enough space
tercio@0: 					if (rowwidths[numrows] + widths[numtabs-1]) <= width then
tercio@0: 						rowends[numrows-1] = rowends[numrows-1] - 1
tercio@0: 						rowwidths[numrows] = rowwidths[numrows] + widths[numtabs-1]
tercio@0: 						rowwidths[numrows-1] = rowwidths[numrows-1] - widths[numtabs-1]
tercio@0: 					end
tercio@0: 				end
tercio@0: 			end
tercio@0: 		end
tercio@0: 
tercio@0: 		--anchor the rows as defined and resize tabs to fill thier row
tercio@0: 		local starttab = 1
tercio@0: 		for row, endtab in ipairs(rowends) do
tercio@0: 			local first = true
tercio@0: 			for tabno = starttab, endtab do
tercio@0: 				local tab = tabs[tabno]
tercio@0: 				tab:ClearAllPoints()
tercio@0: 				if first then
tercio@0: 					tab:SetPoint("TOPLEFT", self.frame, "TOPLEFT", 0, -(hastitle and 14 or 7)-(row-1)*20 )
tercio@0: 					first = false
tercio@0: 				else
tercio@0: 					tab:SetPoint("LEFT", tabs[tabno-1], "RIGHT", -10, 0)
tercio@0: 				end
tercio@0: 			end
tercio@0: 			
tercio@0: 			-- equal padding for each tab to fill the available width,
tercio@0: 			-- if the used space is above 75% already
tercio@0: 			-- the 18 pixel is the typical width of a scrollbar, so we can have a tab group inside a scrolling frame, 
tercio@0: 			-- and not have the tabs jump around funny when switching between tabs that need scrolling and those that don't
tercio@0: 			local padding = 0
tercio@0: 			if not (numrows == 1 and rowwidths[1] < width*0.75 - 18) then
tercio@0: 				padding = (width - rowwidths[row]) / (endtab - starttab+1)
tercio@0: 			end
tercio@0: 			
tercio@0: 			for i = starttab, endtab do
tercio@0: 				PanelTemplates_TabResize(tabs[i], padding + 4, nil, nil, width, tabs[i]:GetFontString():GetStringWidth())
tercio@0: 			end
tercio@0: 			starttab = endtab + 1
tercio@0: 		end
tercio@0: 		
tercio@0: 		self.borderoffset = (hastitle and 17 or 10)+((numrows)*20)
tercio@0: 		self.border:SetPoint("TOPLEFT", 1, -self.borderoffset)
tercio@0: 	end,
tercio@0: 
tercio@0: 	["OnWidthSet"] = function(self, width)
tercio@0: 		local content = self.content
tercio@0: 		local contentwidth = width - 60
tercio@0: 		if contentwidth < 0 then
tercio@0: 			contentwidth = 0
tercio@0: 		end
tercio@0: 		content:SetWidth(contentwidth)
tercio@0: 		content.width = contentwidth
tercio@0: 		self:BuildTabs(self)
tercio@0: 		self.frame:SetScript("OnUpdate", BuildTabsOnUpdate)
tercio@0: 	end,
tercio@0: 
tercio@0: 	["OnHeightSet"] = function(self, height)
tercio@0: 		local content = self.content
tercio@0: 		local contentheight = height - (self.borderoffset + 23)
tercio@0: 		if contentheight < 0 then
tercio@0: 			contentheight = 0
tercio@0: 		end
tercio@0: 		content:SetHeight(contentheight)
tercio@0: 		content.height = contentheight
tercio@0: 	end,
tercio@0: 	
tercio@0: 	["LayoutFinished"] = function(self, width, height)
tercio@0: 		if self.noAutoHeight then return end
tercio@0: 		self:SetHeight((height or 0) + (self.borderoffset + 23))
tercio@0: 	end
tercio@0: }
tercio@0: 
tercio@0: --[[-----------------------------------------------------------------------------
tercio@0: Constructor
tercio@0: -------------------------------------------------------------------------------]]
tercio@0: local PaneBackdrop  = {
tercio@0: 	bgFile = "Interface\\ChatFrame\\ChatFrameBackground",
tercio@0: 	edgeFile = "Interface\\Tooltips\\UI-Tooltip-Border",
tercio@0: 	tile = true, tileSize = 16, edgeSize = 16,
tercio@0: 	insets = { left = 3, right = 3, top = 5, bottom = 3 }
tercio@0: }
tercio@0: 
tercio@0: local function Constructor()
tercio@0: 	local num = AceGUI:GetNextWidgetNum(Type)
tercio@0: 	local frame = CreateFrame("Frame",nil,UIParent)
tercio@0: 	frame:SetHeight(100)
tercio@0: 	frame:SetWidth(100)
tercio@0: 	frame:SetFrameStrata("FULLSCREEN_DIALOG")
tercio@0: 
tercio@0: 	local titletext = frame:CreateFontString(nil,"OVERLAY","GameFontNormal")
tercio@0: 	titletext:SetPoint("TOPLEFT", 14, 0)
tercio@0: 	titletext:SetPoint("TOPRIGHT", -14, 0)
tercio@0: 	titletext:SetJustifyH("LEFT")
tercio@0: 	titletext:SetHeight(18)
tercio@0: 	titletext:SetText("")
tercio@0: 
tercio@0: 	local border = CreateFrame("Frame", nil, frame)
tercio@0: 	border:SetPoint("TOPLEFT", 1, -27)
tercio@0: 	border:SetPoint("BOTTOMRIGHT", -1, 3)
tercio@0: 	border:SetBackdrop(PaneBackdrop)
tercio@0: 	border:SetBackdropColor(0.1, 0.1, 0.1, 0.5)
tercio@0: 	border:SetBackdropBorderColor(0.4, 0.4, 0.4)
tercio@0: 
tercio@0: 	local content = CreateFrame("Frame", nil, border)
tercio@0: 	content:SetPoint("TOPLEFT", 10, -7)
tercio@0: 	content:SetPoint("BOTTOMRIGHT", -10, 7)
tercio@0: 
tercio@0: 	local widget = {
tercio@0: 		num          = num,
tercio@0: 		frame        = frame,
tercio@0: 		localstatus  = {},
tercio@0: 		alignoffset  = 18,
tercio@0: 		titletext    = titletext,
tercio@0: 		border       = border,
tercio@0: 		borderoffset = 27,
tercio@0: 		tabs         = {},
tercio@0: 		content      = content,
tercio@0: 		type         = Type
tercio@0: 	}
tercio@0: 	for method, func in pairs(methods) do
tercio@0: 		widget[method] = func
tercio@0: 	end
tercio@0: 	
tercio@0: 	return AceGUI:RegisterAsContainer(widget)
tercio@0: end
tercio@0: 
tercio@0: AceGUI:RegisterWidgetType(Type, Constructor, Version)