tercio@0: --[[
tercio@0: Name: DBIcon-1.0
tercio@0: Revision: $Rev: 34 $
tercio@0: Author(s): Rabbit (rabbit.magtheridon@gmail.com)
tercio@0: Description: Allows addons to register to recieve a lightweight minimap icon as an alternative to more heavy LDB displays.
tercio@0: Dependencies: LibStub
tercio@0: License: GPL v2 or later.
tercio@0: ]]
tercio@0: 
tercio@0: --[[
tercio@0: Copyright (C) 2008-2011 Rabbit
tercio@0: 
tercio@0: This program is free software; you can redistribute it and/or
tercio@0: modify it under the terms of the GNU General Public License
tercio@0: as published by the Free Software Foundation; either version 2
tercio@0: of the License, or (at your option) any later version.
tercio@0: 
tercio@0: This program is distributed in the hope that it will be useful,
tercio@0: but WITHOUT ANY WARRANTY; without even the implied warranty of
tercio@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tercio@0: GNU General Public License for more details.
tercio@0: 
tercio@0: You should have received a copy of the GNU General Public License
tercio@0: along with this program; if not, write to the Free Software
tercio@0: Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
tercio@0: ]]
tercio@0: 
tercio@0: -----------------------------------------------------------------------
tercio@0: -- DBIcon-1.0
tercio@0: --
tercio@0: -- Disclaimer: Most of this code was ripped from Barrel but fixed, streamlined
tercio@0: --             and cleaned up a lot so that it no longer sucks.
tercio@0: --
tercio@0: 
tercio@0: local DBICON10 = "LibDBIcon-1.0"
tercio@0: local DBICON10_MINOR = tonumber(("$Rev: 34 $"):match("(%d+)"))
tercio@0: if not LibStub then error(DBICON10 .. " requires LibStub.") end
tercio@0: local ldb = LibStub("LibDataBroker-1.1", true)
tercio@0: if not ldb then error(DBICON10 .. " requires LibDataBroker-1.1.") end
tercio@0: local lib = LibStub:NewLibrary(DBICON10, DBICON10_MINOR)
tercio@0: if not lib then return end
tercio@0: 
tercio@0: lib.disabled = lib.disabled or nil
tercio@0: lib.objects = lib.objects or {}
tercio@0: lib.callbackRegistered = lib.callbackRegistered or nil
tercio@0: lib.callbacks = lib.callbacks or LibStub("CallbackHandler-1.0"):New(lib)
tercio@0: lib.notCreated = lib.notCreated or {}
tercio@0: 
tercio@0: function lib:IconCallback(event, name, key, value, dataobj)
tercio@0: 	if lib.objects[name] then
tercio@0: 		if key == "icon" then
tercio@0: 			lib.objects[name].icon:SetTexture(value)
tercio@0: 		elseif key == "iconCoords" then
tercio@0: 			lib.objects[name].icon:UpdateCoord()
tercio@0: 		elseif key == "iconR" then
tercio@0: 			local _, g, b = lib.objects[name].icon:GetVertexColor()
tercio@0: 			lib.objects[name].icon:SetVertexColor(value, g, b)
tercio@0: 		elseif key == "iconG" then
tercio@0: 			local r, _, b = lib.objects[name].icon:GetVertexColor()
tercio@0: 			lib.objects[name].icon:SetVertexColor(r, value, b)
tercio@0: 		elseif key == "iconB" then
tercio@0: 			local r, g = lib.objects[name].icon:GetVertexColor()
tercio@0: 			lib.objects[name].icon:SetVertexColor(r, g, value)
tercio@0: 		end
tercio@0: 	end
tercio@0: end
tercio@0: if not lib.callbackRegistered then
tercio@0: 	ldb.RegisterCallback(lib, "LibDataBroker_AttributeChanged__icon", "IconCallback")
tercio@0: 	ldb.RegisterCallback(lib, "LibDataBroker_AttributeChanged__iconCoords", "IconCallback")
tercio@0: 	ldb.RegisterCallback(lib, "LibDataBroker_AttributeChanged__iconR", "IconCallback")
tercio@0: 	ldb.RegisterCallback(lib, "LibDataBroker_AttributeChanged__iconG", "IconCallback")
tercio@0: 	ldb.RegisterCallback(lib, "LibDataBroker_AttributeChanged__iconB", "IconCallback")
tercio@0: 	lib.callbackRegistered = true
tercio@0: end
tercio@0: 
tercio@0: -- Tooltip code ripped from StatBlockCore by Funkydude
tercio@0: local function getAnchors(frame)
tercio@0: 	local x, y = frame:GetCenter()
tercio@0: 	if not x or not y then return "CENTER" end
tercio@0: 	local hhalf = (x > UIParent:GetWidth()*2/3) and "RIGHT" or (x < UIParent:GetWidth()/3) and "LEFT" or ""
tercio@0: 	local vhalf = (y > UIParent:GetHeight()/2) and "TOP" or "BOTTOM"
tercio@0: 	return vhalf..hhalf, frame, (vhalf == "TOP" and "BOTTOM" or "TOP")..hhalf
tercio@0: end
tercio@0: 
tercio@0: local function onEnter(self)
tercio@0: 	if self.isMoving then return end
tercio@0: 	local obj = self.dataObject
tercio@0: 	if obj.OnTooltipShow then
tercio@0: 		GameTooltip:SetOwner(self, "ANCHOR_NONE")
tercio@0: 		GameTooltip:SetPoint(getAnchors(self))
tercio@0: 		obj.OnTooltipShow(GameTooltip)
tercio@0: 		GameTooltip:Show()
tercio@0: 	elseif obj.OnEnter then
tercio@0: 		obj.OnEnter(self)
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: local function onLeave(self)
tercio@0: 	local obj = self.dataObject
tercio@0: 	GameTooltip:Hide()
tercio@0: 	if obj.OnLeave then obj.OnLeave(self) end
tercio@0: end
tercio@0: 
tercio@0: --------------------------------------------------------------------------------
tercio@0: 
tercio@0: local onClick, onMouseUp, onMouseDown, onDragStart, onDragStop, onDragEnd, updatePosition
tercio@0: 
tercio@0: do
tercio@0: 	local minimapShapes = {
tercio@0: 		["ROUND"] = {true, true, true, true},
tercio@0: 		["SQUARE"] = {false, false, false, false},
tercio@0: 		["CORNER-TOPLEFT"] = {false, false, false, true},
tercio@0: 		["CORNER-TOPRIGHT"] = {false, false, true, false},
tercio@0: 		["CORNER-BOTTOMLEFT"] = {false, true, false, false},
tercio@0: 		["CORNER-BOTTOMRIGHT"] = {true, false, false, false},
tercio@0: 		["SIDE-LEFT"] = {false, true, false, true},
tercio@0: 		["SIDE-RIGHT"] = {true, false, true, false},
tercio@0: 		["SIDE-TOP"] = {false, false, true, true},
tercio@0: 		["SIDE-BOTTOM"] = {true, true, false, false},
tercio@0: 		["TRICORNER-TOPLEFT"] = {false, true, true, true},
tercio@0: 		["TRICORNER-TOPRIGHT"] = {true, false, true, true},
tercio@0: 		["TRICORNER-BOTTOMLEFT"] = {true, true, false, true},
tercio@0: 		["TRICORNER-BOTTOMRIGHT"] = {true, true, true, false},
tercio@0: 	}
tercio@0: 
tercio@0: 	function updatePosition(button)
tercio@0: 		local angle = math.rad(button.db and button.db.minimapPos or button.minimapPos or 225)
tercio@0: 		local x, y, q = math.cos(angle), math.sin(angle), 1
tercio@0: 		if x < 0 then q = q + 1 end
tercio@0: 		if y > 0 then q = q + 2 end
tercio@0: 		local minimapShape = GetMinimapShape and GetMinimapShape() or "ROUND"
tercio@0: 		local quadTable = minimapShapes[minimapShape]
tercio@0: 		if quadTable[q] then
tercio@0: 			x, y = x*80, y*80
tercio@0: 		else
tercio@0: 			local diagRadius = 103.13708498985 --math.sqrt(2*(80)^2)-10
tercio@0: 			x = math.max(-80, math.min(x*diagRadius, 80))
tercio@0: 			y = math.max(-80, math.min(y*diagRadius, 80))
tercio@0: 		end
tercio@0: 		button:SetPoint("CENTER", Minimap, "CENTER", x, y)
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: function onClick(self, b) if self.dataObject.OnClick then self.dataObject.OnClick(self, b) end end
tercio@0: function onMouseDown(self) self.isMouseDown = true; self.icon:UpdateCoord() end
tercio@0: function onMouseUp(self) self.isMouseDown = false; self.icon:UpdateCoord() end
tercio@0: 
tercio@0: do
tercio@0: 	local function onUpdate(self)
tercio@0: 		local mx, my = Minimap:GetCenter()
tercio@0: 		local px, py = GetCursorPosition()
tercio@0: 		local scale = Minimap:GetEffectiveScale()
tercio@0: 		px, py = px / scale, py / scale
tercio@0: 		if self.db then
tercio@0: 			self.db.minimapPos = math.deg(math.atan2(py - my, px - mx)) % 360
tercio@0: 		else
tercio@0: 			self.minimapPos = math.deg(math.atan2(py - my, px - mx)) % 360
tercio@0: 		end
tercio@0: 		updatePosition(self)
tercio@0: 	end
tercio@0: 
tercio@0: 	function onDragStart(self)
tercio@0: 		self:LockHighlight()
tercio@0: 		self.isMouseDown = true
tercio@0: 		self.icon:UpdateCoord()
tercio@0: 		self:SetScript("OnUpdate", onUpdate)
tercio@0: 		self.isMoving = true
tercio@0: 		GameTooltip:Hide()
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: function onDragStop(self)
tercio@0: 	self:SetScript("OnUpdate", nil)
tercio@0: 	self.isMouseDown = false
tercio@0: 	self.icon:UpdateCoord()
tercio@0: 	self:UnlockHighlight()
tercio@0: 	self.isMoving = nil
tercio@0: end
tercio@0: 
tercio@0: local defaultCoords = {0, 1, 0, 1}
tercio@0: local function updateCoord(self)
tercio@0: 	local coords = self:GetParent().dataObject.iconCoords or defaultCoords
tercio@0: 	local deltaX, deltaY = 0, 0
tercio@0: 	if not self:GetParent().isMouseDown then
tercio@0: 		deltaX = (coords[2] - coords[1]) * 0.05
tercio@0: 		deltaY = (coords[4] - coords[3]) * 0.05
tercio@0: 	end
tercio@0: 	self:SetTexCoord(coords[1] + deltaX, coords[2] - deltaX, coords[3] + deltaY, coords[4] - deltaY)
tercio@0: end
tercio@0: 
tercio@0: local function createButton(name, object, db)
tercio@0: 	local button = CreateFrame("Button", "LibDBIcon10_"..name, Minimap)
tercio@0: 	button.dataObject = object
tercio@0: 	button.db = db
tercio@0: 	button:SetFrameStrata("MEDIUM")
tercio@0: 	button:SetSize(31, 31)
tercio@0: 	button:SetFrameLevel(8)
tercio@0: 	button:RegisterForClicks("anyUp")
tercio@0: 	button:RegisterForDrag("LeftButton")
tercio@0: 	button:SetHighlightTexture("Interface\\Minimap\\UI-Minimap-ZoomButton-Highlight")
tercio@0: 	local overlay = button:CreateTexture(nil, "OVERLAY")
tercio@0: 	overlay:SetSize(53, 53)
tercio@0: 	overlay:SetTexture("Interface\\Minimap\\MiniMap-TrackingBorder")
tercio@0: 	overlay:SetPoint("TOPLEFT")
tercio@0: 	local background = button:CreateTexture(nil, "BACKGROUND")
tercio@0: 	background:SetSize(20, 20)
tercio@0: 	background:SetTexture("Interface\\Minimap\\UI-Minimap-Background")
tercio@0: 	background:SetPoint("TOPLEFT", 7, -5)
tercio@0: 	local icon = button:CreateTexture(nil, "ARTWORK")
tercio@0: 	icon:SetSize(17, 17)
tercio@0: 	icon:SetTexture(object.icon)
tercio@0: 	icon:SetPoint("TOPLEFT", 7, -6)
tercio@0: 	button.icon = icon
tercio@0: 	button.isMouseDown = false
tercio@0: 
tercio@0: 	local r, g, b = icon:GetVertexColor()
tercio@0: 	icon:SetVertexColor(object.iconR or r, object.iconG or g, object.iconB or b)
tercio@0: 
tercio@0: 	icon.UpdateCoord = updateCoord
tercio@0: 	icon:UpdateCoord()
tercio@0: 
tercio@0: 	button:SetScript("OnEnter", onEnter)
tercio@0: 	button:SetScript("OnLeave", onLeave)
tercio@0: 	button:SetScript("OnClick", onClick)
tercio@0: 	if not db or not db.lock then
tercio@0: 		button:SetScript("OnDragStart", onDragStart)
tercio@0: 		button:SetScript("OnDragStop", onDragStop)
tercio@0: 	end
tercio@0: 	button:SetScript("OnMouseDown", onMouseDown)
tercio@0: 	button:SetScript("OnMouseUp", onMouseUp)
tercio@0: 
tercio@0: 	lib.objects[name] = button
tercio@0: 
tercio@0: 	if lib.loggedIn then
tercio@0: 		updatePosition(button)
tercio@0: 		if not db or not db.hide then button:Show()
tercio@0: 		else button:Hide() end
tercio@0: 	end
tercio@0: 	lib.callbacks:Fire("LibDBIcon_IconCreated", button, name) -- Fire 'Icon Created' callback
tercio@0: end
tercio@0: 
tercio@0: -- We could use a metatable.__index on lib.objects, but then we'd create
tercio@0: -- the icons when checking things like :IsRegistered, which is not necessary.
tercio@0: local function check(name)
tercio@0: 	if lib.notCreated[name] then
tercio@0: 		createButton(name, lib.notCreated[name][1], lib.notCreated[name][2])
tercio@0: 		lib.notCreated[name] = nil
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: lib.loggedIn = lib.loggedIn or false
tercio@0: -- Wait a bit with the initial positioning to let any GetMinimapShape addons
tercio@0: -- load up.
tercio@0: if not lib.loggedIn then
tercio@0: 	local f = CreateFrame("Frame")
tercio@0: 	f:SetScript("OnEvent", function()
tercio@0: 		for _, object in pairs(lib.objects) do
tercio@0: 			updatePosition(object)
tercio@0: 			if not lib.disabled and (not object.db or not object.db.hide) then object:Show()
tercio@0: 			else object:Hide() end
tercio@0: 		end
tercio@0: 		lib.loggedIn = true
tercio@0: 		f:SetScript("OnEvent", nil)
tercio@0: 		f = nil
tercio@0: 	end)
tercio@0: 	f:RegisterEvent("PLAYER_LOGIN")
tercio@0: end
tercio@0: 
tercio@0: local function getDatabase(name)
tercio@0: 	return lib.notCreated[name] and lib.notCreated[name][2] or lib.objects[name].db
tercio@0: end
tercio@0: 
tercio@0: function lib:Register(name, object, db)
tercio@0: 	if not object.icon then error("Can't register LDB objects without icons set!") end
tercio@0: 	if lib.objects[name] or lib.notCreated[name] then error("Already registered, nubcake.") end
tercio@0: 	if not lib.disabled and (not db or not db.hide) then
tercio@0: 		createButton(name, object, db)
tercio@0: 	else
tercio@0: 		lib.notCreated[name] = {object, db}
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: function lib:Lock(name)
tercio@0: 	if not lib:IsRegistered(name) then return end
tercio@0: 	if lib.objects[name] then
tercio@0: 		lib.objects[name]:SetScript("OnDragStart", nil)
tercio@0: 		lib.objects[name]:SetScript("OnDragStop", nil)
tercio@0: 	end
tercio@0: 	local db = getDatabase(name)
tercio@0: 	if db then db.lock = true end
tercio@0: end
tercio@0: 
tercio@0: function lib:Unlock(name)
tercio@0: 	if not lib:IsRegistered(name) then return end
tercio@0: 	if lib.objects[name] then
tercio@0: 		lib.objects[name]:SetScript("OnDragStart", onDragStart)
tercio@0: 		lib.objects[name]:SetScript("OnDragStop", onDragStop)
tercio@0: 	end
tercio@0: 	local db = getDatabase(name)
tercio@0: 	if db then db.lock = nil end
tercio@0: end
tercio@0: 
tercio@0: function lib:Hide(name)
tercio@0: 	if not lib.objects[name] then return end
tercio@0: 	lib.objects[name]:Hide()
tercio@0: end
tercio@0: function lib:Show(name)
tercio@0: 	if lib.disabled then return end
tercio@0: 	check(name)
tercio@0: 	lib.objects[name]:Show()
tercio@0: 	updatePosition(lib.objects[name])
tercio@0: end
tercio@0: function lib:IsRegistered(name)
tercio@0: 	return (lib.objects[name] or lib.notCreated[name]) and true or false
tercio@0: end
tercio@0: function lib:Refresh(name, db)
tercio@0: 	if lib.disabled then return end
tercio@0: 	check(name)
tercio@0: 	local button = lib.objects[name]
tercio@0: 	if db then button.db = db end
tercio@0: 	updatePosition(button)
tercio@0: 	if not button.db or not button.db.hide then
tercio@0: 		button:Show()
tercio@0: 	else
tercio@0: 		button:Hide()
tercio@0: 	end
tercio@0: 	if not button.db or not button.db.lock then
tercio@0: 		button:SetScript("OnDragStart", onDragStart)
tercio@0: 		button:SetScript("OnDragStop", onDragStop)
tercio@0: 	else
tercio@0: 		button:SetScript("OnDragStart", nil)
tercio@0: 		button:SetScript("OnDragStop", nil)
tercio@0: 	end
tercio@0: end
tercio@0: function lib:GetMinimapButton(name)
tercio@0: 	return lib.objects[name]
tercio@0: end
tercio@0: 
tercio@0: function lib:EnableLibrary()
tercio@0: 	lib.disabled = nil
tercio@0: 	for name, object in pairs(lib.objects) do
tercio@0: 		if not object.db or not object.db.hide then
tercio@0: 			object:Show()
tercio@0: 			updatePosition(object)
tercio@0: 		end
tercio@0: 	end
tercio@0: 	for name, data in pairs(lib.notCreated) do
tercio@0: 		if not data.db or not data.db.hide then
tercio@0: 			createButton(name, data[1], data[2])
tercio@0: 			lib.notCreated[name] = nil
tercio@0: 		end
tercio@0: 	end
tercio@0: end
tercio@0: 
tercio@0: function lib:DisableLibrary()
tercio@0: 	lib.disabled = true
tercio@0: 	for name, object in pairs(lib.objects) do
tercio@0: 		object:Hide()
tercio@0: 	end
tercio@0: end
tercio@0: