Bazooka.lua

--[[
Name: Bazooka
Revision: $Revision: 296 $
Author(s): mitch0
Website: http://www.wowace.com/projects/bazooka/
SVN: svn://svn.wowace.com/wow/bazooka/mainline/trunk
Description: Bazooka is a FuBar like broker display
License: Public Domain
]]

local AppName, Bazooka = ...
local OptionsAppName = AppName .. "_Options"
local VERSION = AppName .. "-v2.8.10"
--[===[@debug@
local VERSION = AppName .. "-r" .. ("$Revision: 296 $"):match("%d+")
--@end-debug@]===]

local LDB = LibStub:GetLibrary("LibDataBroker-1.1")
local LSM = LibStub:GetLibrary("LibSharedMedia-3.0", true)
local Jostle = LibStub:GetLibrary("LibJostle-3.0", true)
local L = LibStub("AceLocale-3.0"):GetLocale(AppName)

-- internal vars

-- Remove all related ifs when the opacity setting for embedded icons gets fixed
local EnableOpacityWorkaround = false -- loaded from global options
-- Remove all related ifs when the setting for gradient background gets fixed
local EnableGradientWorkaround = true

local _ -- throwaway
local uiScale = 1.0 -- just to be safe...

local function makeColor(r, g, b, a)
    return { ["r"] = r, ["g"] = g, ["b"] = b, ["a"] = a }
end

local function colorToHex(color)
    return ("%02x%02x%02x%02x"):format((color.a and color.a * 255 or 255), color.r*255, color.g*255, color.b*255)   
end

local function getTexture(textureName, region, ...)
    if not region then
        return
    end
    if region.GetTexture and region:GetTexture() == textureName then
        return region
    end
    return getTexture(textureName, ...)
end

-- cached stuff

local _G = _G
local IsAltKeyDown = _G.IsAltKeyDown
local IsShiftKeyDown = _G.IsShiftKeyDown
local IsModifierKeyDown = _G.IsModifierKeyDown
local GetCursorPosition = _G.GetCursorPosition
local GetAddOnInfo = _G.GetAddOnInfo
local GetScreenWidth = _G.GetScreenWidth
local GetScreenHeight = _G.GetScreenHeight
local UIParent = _G.UIParent
local CreateFrame = _G.CreateFrame
local InCombatLockdown = _G.InCombatLockdown
local tinsert = _G.tinsert
local tremove = _G.tremove
local tostring = _G.tostring
local tonumber = _G.tonumber
local print = _G.print
local pairs = _G.pairs
local type = _G.type
local unpack = _G.unpack
local wipe = _G.wipe
local math = _G.math
local GameTooltip = _G.GameTooltip
local strtrim = _G.strtrim
local strsub = _G.strsub
local strlen = _G.strlen
local strsplit = _G.strsplit

-- hard-coded config stuff

local Defaults =  {
    bgTexture = "Blizzard Tooltip",
    bgFile = [[Interface\Tooltips\UI-Tooltip-Background]],
--  bgTexture = "Blizzard Dialog Background",
--  bgFile = [[Interface\DialogFrame\UI-DialogBox-Background]],
--  edgeTexture = "Blizzard Tooltip",
--  edgeFile = [[Interface\Tooltips\UI-Tooltip-Border]],
    edgeTexture = "None",
    edgeFile = false,
    fontName = "Friz Quadrata TT",
    fontPath = GameFontNormal:GetFont(),
    minFrameWidth = 10,
    minFrameHeight = 10,
    maxFrameWidth = 2000,
    maxFrameHeight = 50,

    fadeOutDelay = 0.5,
    fadeOutDuration = 0.5,
    fadeInDuration = 0.25,
}

local BarDefaults = {
    hidden = false,
    marked = false,
    fadeInCombat = false,
    fadeOutOfCombat = false,
    disableMouseInCombat = true,
    disableMouseOutOfCombat = false,
    disableDuringPetBattle = true,
    fadeAlpha = 0.4,

    point = "TOP",
    relPoint = "TOP",
    x = 0,
    y = -50,

    tweakLeft = 0,
    tweakRight = 0,
    tweakTop = 0,
    tweakBottom = 0,

    leftMargin = 8,
    rightMargin = 8,
    leftSpacing = 8,
    rightSpacing = 8,
    centerSpacing = 16,
    iconTextSpacing = 2,

    font = Defaults.fontName,
    fontSize = 12,
    fontOutline = "",
    fontShadow = true,

    iconSize = 16,

    labelColor = makeColor(0.9, 0.9, 0.9),
    textColor = makeColor(1.0, 0.82, 0),
    suffixColor = makeColor(0, 0.82, 0),
    pluginOpacity = 1.0,
    
    attach = 'none',
    fitToContentWidth = false,

    strata = "MEDIUM",

    frameWidth = 256,
    frameHeight = 20,

    bgEnabled = true,
    bgTextureType = 'background',
    bgTexture = Defaults.bgTexture,
    bgBorderTexture = Defaults.edgeTexture,
    bgTile = false,
    bgTileSize = 32,
    bgEdgeSize = 16,
    bgColor = makeColor(0, 0, 0, 1.0),
    bgGradientColor = makeColor(0, 0, 0, 0),
    bgBorderColor = makeColor(0.8, 0.6, 0.0, 1.0),
}
local PluginDefaults = {
    enabled = false,
    bar = 1,
    area = 'left',
    pos = nil,
    hideTipOnClick = true,
    disableTooltip = false,
    disableTooltipInCombat = true,
    disableMouseInCombat = false,
    disableMouseOutOfCombat = false,
    forceHideTip = false,
    showIcon = true,
    showLabel = true,
    showTitle = true,
    showText = true,
    showValue = false,
    showSuffix = false,
    useLabelAsTitle = false,
    shrinkThreshold = 5,
    overrideTooltipScale = false,
    tooltipScale = 1.0,
    iconBorderClip = 0.07,
    alignment = "LEFT",
}

local Icon = [[Interface\AddOns\]] .. AppName .. [[\bzk_locked.tga]]
local UnlockedIcon = [[Interface\AddOns\]] .. AppName .. [[\bzk_unlocked.tga]]
local HighlightImage = [[Interface\AddOns\]] .. AppName .. [[\highlight.tga]]
local EmptyPluginWidth = 1
local NearSquared = 32 * 32
local MinDropPlaceHLDX = 3
local BzkDialogDisablePlugin = 'BAZOOKA_DISABLE_PLUGIN'
local MaxTweakPts = 5

Bazooka = LibStub("AceAddon-3.0"):NewAddon(Bazooka, AppName, "AceEvent-3.0")
_G.Bazooka = Bazooka
Bazooka:SetDefaultModuleState(false)

Bazooka.version = VERSION
Bazooka.AppName = AppName
Bazooka.Defaults = Defaults

Bazooka.draggedFrame = nil
Bazooka.bars = {}
Bazooka.attachedBars = {
    ['top'] = {},
    ['bottom'] = {},
}
Bazooka.plugins = {}
Bazooka.numBars = 0

Bazooka.AreaNames = {
    left = L["left"],
    cleft = L["cleft"],
    center = L["center"],
    cright = L["cright"],
    right = L["right"],
}

Bazooka.AttachNames = {
    top = L["top"],
    bottom = L["bottom"],
    none = L["none"],
}

-- Default DB stuff

local defaults = {
    global = {
        plugins = PluginDefaults,
        bars = BarDefaults,
        autoApply = true,
    },
    profile = {
        locked = false,
        adjustFrames = true,
        simpleTip = true,
        enableHL = true,
        disableDBIcon = true,
        numBars = 1,
        fadeOutDelay = Defaults.fadeOutDelay,
        fadeOutDuration = Defaults.fadeOutDuration,
        fadeInDuration = Defaults.fadeInDuration,

        bars = {
            ["**"] = BarDefaults,
            [1] = {
                attach = 'top',
            },
            [2] = {
                attach = 'bottom',
            },
        },
        plugins = {
            ["*"] = {
                ["**"] = PluginDefaults,
            },
            ["launcher"] = {
                ["**"] = {
                    enabled = true,
                    bar = 1,
                    area = 'left',
                    pos = nil,
                    hideTipOnClick = true,
                    disableTooltip = false,
                    disableTooltipInCombat = true,
                    disableMouseInCombat = false,
                    disableMouseOutOfCombat = false,
                    forceHideTip = false,
                    showIcon = true,
                    showLabel = false,
                    showTitle = true,
                    showText = false,
                    shrinkThreshold = 0,
                    overrideTooltipScale = false,
                    tooltipScale = 1.0,
                    iconBorderClip = 0.07,
                },
                [AppName] = {
                    pos = 1,
                },
            },
            ["data source"] = {
                ["**"] = {
                    enabled = true,
                    bar = 1,
                    area = 'right',
                    pos = nil,
                    hideTipOnClick = true,
                    disableTooltip = false,
                    disableTooltipInCombat = true,
                    disableMouseInCombat = false,
                    disableMouseOutOfCombat = false,
                    forceHideTip = false,
                    showIcon = true,
                    showLabel = false,
                    showTitle = false,
                    showText = true,
                    shrinkThreshold = PluginDefaults.shrinkThreshold,
                    overrideTooltipScale = false,
                    tooltipScale = 1.0,
                    iconBorderClip = 0.07,
                },
            },
        },
    },
}

local function deepCopy(src)
    local res = {}
    for k, v in pairs(src) do
        if type(v) == 'table' then
            v = deepCopy(v)
        end
        res[k] = v
    end
    return res
end

local function setDeepCopyIndex(proto)
    proto.__index = function(t, k)
        local v = proto[k]
        if type(v) == 'table' then
            v = deepCopy(v)
        end
        t[k] = v
        return v
    end
end

local function updateUIScale()
    uiScale = UIParent:GetEffectiveScale()
end

local function getScaledCursorPosition()
    local x, y = GetCursorPosition()
    return x / uiScale, y / uiScale
end

local function distance2(x1, y1, x2, y2)
    return (x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)
end

local function getDistance2Frame(x, y, frame)
    local left, bottom, width, height = frame:GetRect()
    local dx, dy = 0, 0
    if left > x then
        dx = left - x
    elseif x > left + width then
        dx = x - (left + width)
    end
    if bottom > y then
        dy = bottom - y
    elseif y > bottom + height then
        dy = y - (bottom + height)
    end
    return dx * dx + dy * dy
end

local function setupTooltip(owner, ttFrame, dx, dy)
    ttFrame = ttFrame or GameTooltip
    if not owner then
        return ttFrame
    end
    if ttFrame.SetOwner then
        ttFrame:SetOwner(owner, "ANCHOR_NONE")
    end
    if ttFrame.ClearLines then
        ttFrame:ClearLines()
    end
    ttFrame:ClearAllPoints()
    local cx, cy = owner:GetCenter()
    if cy < GetScreenHeight() / 2 then
        ttFrame:SetPoint("BOTTOM", owner, "TOP", dx, dy)
    else
        ttFrame:SetPoint("TOP", owner, "BOTTOM", dx, dy)
    end
    return ttFrame
end

local function stripColors(text)
    return tostring(text):gsub("|c%x%x%x%x%x%x%x%x", ""):gsub("|r", "")
end

---------------------------------

-- BEGIN Bar stuff

local function sumPluginsWidth(plugins)
    local w = 0
    for i = 1, #plugins do
        w = w + plugins[i].frame:GetWidth()
    end
    return w
end

local Bar = {
    id = nil,
    name = nil,
    db = nil,
    frame = nil,
    centerFrame = nil,
    allPlugins = {},
    plugins = {
        left = {},
        cleft = {},
        center = {},
        cright = {},
        right = {},
    },
    inset = 0,
    backdrop = nil,
    hl = nil,
    attach = nil,
    pos = nil,
}

setDeepCopyIndex(Bar)

Bar.OnEnter = function(frame)
    local self = frame.bzkBar or frame.bzkPlugin.bar
    self.isMouseInside = true
    if InCombatLockdown() then
        if self.db.fadeInCombat then
            self:fadeIn()
        end
    else
        if self.db.fadeOutOfCombat then
            self:fadeIn()
        end
    end
end

Bar.OnLeave = function(frame)
    local self = frame.bzkBar or frame.bzkPlugin.bar
    self.isMouseInside = false
    if InCombatLockdown() then
        if self.db.fadeInCombat then
            self:fadeOut()
        end
    else
        if self.db.fadeOutOfCombat then
            self:fadeOut()
        end
    end
end

Bar.OnDragStart = function(frame, button)
    if Bazooka.locked then
        return
    end
    if Bazooka.tipOwner then
        Bazooka.tipOwner:hideTip(true)
        Bazooka.tipOwner = nil
    end
    local self = frame.bzkBar
    updateUIScale()
    frame:SetAlpha(0.7)
    Bazooka.draggedFrame = frame
    if button == "LeftButton" then
        Bazooka:detachBar(self)
        Bazooka:updateAnchors()
        self.isMoving = true
        frame:StartMoving()
    else
        self.isMoving = nil
        if IsAltKeyDown() then
            frame:StartSizing(self:getSizingPoint(getScaledCursorPosition()))
        end
    end
end

Bar.OnDragStop = function(frame)
    if not Bazooka.draggedFrame then
        return
    end
    local self = frame.bzkBar
    Bazooka.draggedFrame = nil
    frame:StopMovingOrSizing()
    frame:SetAlpha(1.0)
    local attach, pos = self.db.attach, nil 
    Bazooka:detachBar(self) -- double detach doesn't hurt (in case we move)
    if not Bazooka.locked then
        if self.isMoving then
            if IsAltKeyDown() then
                if attach == 'none' then
                    attach = 'top'
                else
                    attach = 'none'
                end
            end
            if attach == 'none' then
                self.db.point, _, self.db.relPoint, self.db.x, self.db.y = frame:GetPoint()
            else
                local cx, cy = frame:GetCenter()
                if cy < GetScreenHeight() / 2 then
                    attach = 'bottom'
                    cy = frame:GetBottom() or cy
                    local bars = Bazooka.attachedBars[attach]
                    for i = 1, #bars do
                        local cb = bars[i]
                        local cby = tonumber(cb.frame:GetBottom())
                        if cy <= cby then
                            pos = cb.db.pos
                            break
                        end
                    end
                else
                    attach = 'top'
                    cy = frame:GetTop() or cy
                    local bars = Bazooka.attachedBars[attach]
                    for i = 1, #bars do
                        local cb = bars[i]
                        local cby = tonumber(cb.frame:GetTop())
                        if cy >= cby then
                            pos = cb.db.pos
                            break
                        end
                    end
                end
            end
        else
            pos = self.db.pos
        end
        self.db.frameWidth = self.frame:GetWidth()
        self.db.frameHeight = self.frame:GetHeight()
    else
        attach, pos = self.db.attach, self.db.pos
    end
    self.isMoving = nil
    Bazooka:attachBar(self, attach, pos)
    Bazooka:updateAnchors()
    Bazooka:updateBarOptions()
end

Bar.OnMouseDown = function(frame, button, ...)
    if Bazooka.locked then
        return
    end
    local self = frame.bzkBar
    if button == 'RightButton' and not IsAltKeyDown() then
        Bazooka:openConfigDialog()
        if Bazooka.barOpts then
            Bazooka:openConfigDialog(Bazooka.barOpts, Bazooka:getSubAppName("bars"), self:getOptionsName())
        end
    end
end


-- BEGIN EnableOpacityWorkaround 
Bar.setAlphaByParts = function(frame, alpha)
    frame.bzkAlpha = alpha
    local self = frame.bzkBar
    if self.db.bgEnabled then
        if self.bgt then
            self:setGradientBg()
        else
            self.frame:SetBackdropColor(self.db.bgColor.r, self.db.bgColor.g, self.db.bgColor.b, self.db.bgColor.a * alpha)
        end
        self.frame:SetBackdropBorderColor(self.db.bgBorderColor.r, self.db.bgBorderColor.g, self.db.bgBorderColor.b, self.db.bgBorderColor.a * alpha)
    end
    for name, plugin in pairs(self.allPlugins) do
        plugin.frame:SetAlpha(plugin.frame:GetAlpha())
    end
end

Bar.getAlphaByParts = function(frame)
    return frame.bzkAlpha
end
-- END EnableOpacityWorkaround 

-- BEGIN EnableGradientWorkaround 
Bar.fixGradientOnSizeChanged = function(frame, w, h)
    local self = frame.bzkBar
    self:setGradientBg()
end
-- END EnableGradientWorkaround 

Bar.initialOnUpdateFixFontMetricHack = function(frame)
    -- fix miscalculated font metrics
    local self = frame.bzkBar
    self:globalSettingsChanged()
    frame:SetScript("OnUpdate", nil)
end

function Bar:New(id, db)
    local bar = setmetatable({}, Bar)
    bar:enable(id, db)
    bar:applySettings()
    return bar
end

function Bar:getOptionsName()
    return "bar" .. self.id
end

function Bar:createFadeAnim()
    self.fadeAnimGrp = self.frame:CreateAnimationGroup()
    self.fadeAnim = self.fadeAnimGrp:CreateAnimation()
    self.fadeAnim.bzkBar = self
    self.fadeAnim:SetScript("OnUpdate", function(anim)
        if not anim:IsDelaying() then
            anim:GetRegionParent():SetAlpha(anim.startAlpha + (anim.change * anim:GetSmoothProgress()))
        end
    end)
    self.fadeAnim:SetScript("OnPlay", function(anim)
        anim.startAlpha = anim:GetRegionParent():GetAlpha()
    end)
    self.fadeAnim:SetScript("OnFinished", function(anim, requested)
        -- FIXME: schedule fadeOut if necessary
    end)
    self.fadeAnim.SetChange = function(anim, change)
        anim.change = change
    end
end

function Bar:setFullyHidden(flag)
    if flag then
        self.isFullyHidden = true
    elseif self.isFullyHidden then
        -- force text update on plugins, the updates were disabled
        self.isFullyHidden = nil
        for name, plugin in pairs(self.allPlugins) do
            if plugin.text then
                plugin:setText()
            end
        end
    end
end

local function calcFadeAnimDuration(change, fullChange, fullDuration)
    if fullChange < 0.05 and fullChange > -0.05 then
        return 0
    end
    return fullDuration * change / fullChange
end

function Bar:fadeIn(initAlpha)
    if self.fadeAnim then
        self.fadeAnimGrp:Stop()
    end
    if initAlpha then
        self.frame:SetAlpha(initAlpha)
    end
    self:setFullyHidden(false)
    local alpha = self.frame:GetAlpha()
    local change = 1.0 - alpha
    if change < 0.05 then
        self.frame:SetAlpha(1.0)
        return
    end
    local fullChange = 1.0 - self.db.fadeAlpha
    if alpha < self.db.fadeAlpha then
        fullChange = 1.0
    end
    local duration = calcFadeAnimDuration(change, fullChange, Bazooka.db.profile.fadeInDuration)
    if duration < 0.01 then
        self.frame:SetAlpha(1.0)
        return
    end
    if not self.fadeAnim then
        self:createFadeAnim()
    end
    self.fadeAnim:SetStartDelay(0)
    self.fadeAnim:SetDuration(duration)
    self.fadeAnim:SetChange(change)
    self.fadeAnimGrp:Play()
end

function Bar:fadeOut(delay, fadeAlpha, initAlpha)
    if self.fadeAnim then
        self.fadeAnimGrp:Stop()
    end
    if initAlpha then
        self.frame:SetAlpha(initAlpha)
    end
    fadeAlpha = fadeAlpha or self.db.fadeAlpha
    if fadeAlpha < 0.05 then
        fadeAlpha = 0
        self:setFullyHidden(true) -- this will disable text updates (see Plugin:setText() and Bar:fadeIn()), partial fix for ticket-37
    else
        self:setFullyHidden(false)
    end
    local alpha = self.frame:GetAlpha()
    local change = fadeAlpha - alpha
    if change < 0.05 and change > -0.05 then
        self.frame:SetAlpha(fadeAlpha)
        return
    end
    local fullChange, fullDuration
    if alpha < fadeAlpha then
        fullChange = fadeAlpha
        fullDuration = Bazooka.db.profile.fadeInDuration
    else
        fullChange = fadeAlpha - 1.0
        fullDuration = Bazooka.db.profile.fadeOutDuration
    end
    delay = delay or Bazooka.db.profile.fadeOutDelay
    local duration = calcFadeAnimDuration(change, fullChange, fullDuration)
    if duration < 0.01 then
        if delay < 0.01 then
            self.frame:SetAlpha(fadeAlpha)
            return
        end
        duration = 0.01 -- if duration is too small (maybe only if 0, but meh) the animation doesn't work properly
    end
    if not self.fadeAnim then
        self:createFadeAnim()
    end
    self.fadeAnim:SetStartDelay(delay)
    self.fadeAnim:SetDuration(duration)
    self.fadeAnim:SetChange(change)
    self.fadeAnimGrp:Play()
end

function Bar:enable(id, db)
    self.id = id
    self.name = Bazooka:getBarName(id)
    self.db = db
    if not self.frame then
        self.frame = CreateFrame("Frame", "BazookaBar_" .. id, UIParent)
        self.frame.bzkBar = self
        self.frame:SetScript("OnUpdate", Bar.initialOnUpdateFixFontMetricHack)
        if EnableOpacityWorkaround then
            self.frame.bzkAlpha = self.frame:GetAlpha()
            self.frame.SetAlpha = Bar.setAlphaByParts
            self.frame.GetAlpha = Bar.getAlphaByParts
        end
        self.frame:EnableMouse(true)
        self.frame:SetClampedToScreen(false)
        self.frame:SetClampRectInsets(MaxTweakPts, -MaxTweakPts, -MaxTweakPts, MaxTweakPts)
        self.frame:RegisterForDrag("LeftButton", "RightButton")
        self.frame:SetScript("OnEnter", Bar.OnEnter)
        self.frame:SetScript("OnLeave", Bar.OnLeave)
        self.frame:SetScript("OnDragStart", Bar.OnDragStart)
        self.frame:SetScript("OnDragStop", Bar.OnDragStop)
        self.frame:SetScript("OnMouseDown", Bar.OnMouseDown)
        self.frame:SetMovable(true)
        self.frame:SetResizable(true)
        self.frame:SetMinResize(Defaults.minFrameWidth, Defaults.minFrameHeight)
        self.frame:SetMaxResize(Defaults.maxFrameWidth, Defaults.maxFrameHeight)
        self.centerFrame = CreateFrame("Frame", nil, self.frame)
        self.centerFrame:EnableMouse(false)
        self.centerFrame:SetPoint("TOP", self.frame, "TOP", 0, 0)
        self.centerFrame:SetPoint("BOTTOM", self.frame, "BOTTOM", 0, 0)
    end
    self:updateCenterWidth()
    self.frame:Show()
end

function Bar:disable()
    if self.frame then
        self.frame:Hide()
    end
    for name, plugin in pairs(self.allPlugins) do
        plugin:disable()
    end
    wipe(self.allPlugins)
    for area, plugins in pairs(self.plugins) do
        wipe(plugins)
    end
end

function Bar:getTopBottom()
    if self.db.attach == 'top' then
        if self.parent then
            local top, bottom, pt, pb = self.parent:getTopBottom()
            local mt = pb + tonumber(self.db.tweakTop)
            local mb = mt - self.db.frameHeight
            return math.max(top, mt), math.min(bottom, mb), mt, mb
        else
            local mt = tonumber(self.db.tweakTop)
            local mb = mt - self.db.frameHeight
            return mt, mb, mt, mb
        end
    elseif self.db.attach == 'bottom' then
        if self.parent then
            local top, bottom, pt, pb = self.parent:getTopBottom()
            local mb = pt + tonumber(self.db.tweakBottom)
            local mt = mb + self.db.frameHeight
            return math.max(top, mt), math.min(bottom, mb), mt, mb
        else
            local mb = tonumber(self.db.tweakBottom)
            local mt = mb + self.db.frameHeight
            return mt, mb, mt, mb
        end
    end
end

function Bar:getAreaCoords(area)
    if area == 'left' then
        local left, bottom, width, height = self.frame:GetRect()
        return left, bottom + height / 2
    elseif area == 'cleft' then
        local left, bottom, width, height = self.centerFrame:GetRect()
        return left, bottom + height / 2
    elseif area == 'cright' then
        local left, bottom, width, height = self.centerFrame:GetRect()
        return left + width, bottom + height / 2
    elseif area == 'right' then
        local left, bottom, width, height = self.frame:GetRect()
        return left + width, bottom + height / 2
    else -- center
        local left, bottom, width, height = self.centerFrame:GetRect()
        return left + width / 2, bottom + height / 2
    end
end

function Bar:getDropPlace(x, y)
    local dstArea, dstPos
    local minDist = math.huge
    if self.db.hidden then
        return dstArea, dstPos, minDist
    end
    for area, plugins in pairs(self.plugins) do
        if #plugins == 0 then
            local dist = distance2(x, y, self:getAreaCoords(area))
            if dist < minDist then
                dstArea, dstPos, minDist = area, 1, dist
            end
        else
            for i = 1, #plugins do
                local pos, dist = plugins[i]:getDropPlace(x, y)
                if dist < minDist then
                    dstArea, dstPos, minDist = area, pos, dist
                end
            end
        end
    end
    return dstArea, dstPos, minDist
end

function Bar:getSpacing(area)
    if area == 'left' then
        return self.db.leftSpacing
    elseif area == 'right' then
        return self.db.rightSpacing
    else
        return self.db.centerSpacing
    end
end

function Bar:getHighlightCenter(area, pos)
    local plugins = self.plugins[area]
    if #plugins == 0 then
        local x = self:getAreaCoords(area)
        return x
    end
    if pos < 0 then
        pos = -pos
        for i = 1, #plugins do
            local plugin = plugins[i]
            if pos <= plugin.db.pos then
                return plugin.frame:GetRight()
            end
        end
    else
        for i = 1, #plugins do
            local plugin = plugins[i]
            if pos <= plugin.db.pos then
                return plugin.frame:GetLeft()
            end
        end
    end
    return plugins[#plugins].frame:GetRight()
end

function Bar:highlight(area, pos)
    if not area then
        if self.hl then
            self.hl:Hide()
            self.lastHLArea, self.lastHLPos = nil
            local tt = setupTooltip()
            if tt:IsOwned(self.frame) then
                tt:Hide()
            end
            Bar.OnLeave(self.frame)
        end
        return
    end
    Bar.OnEnter(self.frame)
    if not self.hl then
        self.hlFrame = CreateFrame("Frame", "BazookaBarHLF_" .. self.id, self.frame)
        self.hlFrame:SetFrameLevel(self.frame:GetFrameLevel() + 5)
        self.hlFrame:EnableMouse(false)
        self.hlFrame:SetAllPoints()
        self.hl = self.hlFrame:CreateTexture("BazookaBarHL_" .. self.id, "OVERLAY")
        self.hl:SetTexture(HighlightImage)
    end
    local hlcx = self:getHighlightCenter(area, pos)
    local center = hlcx - self.frame:GetLeft()
    local dx = math.floor(self:getSpacing(area) / 2 + 0.5)
    if dx < MinDropPlaceHLDX then
        dx = MinDropPlaceHLDX
    end
    self.hl:ClearAllPoints()
    self.hl:SetPoint("TOP", self.frame, "TOP", 0, 0)
    self.hl:SetPoint("BOTTOM", self.frame, "BOTTOM", 0, 0)
    self.hl:SetPoint("LEFT", self.frame, "LEFT", center - dx, 0)
    self.hl:SetPoint("RIGHT", self.frame, "LEFT", center + dx, 0)
    self.hl:Show()
    if area ~= self.lastHLArea or pos ~= self.lastHLPos then
        self.lastHLArea, self.lastHLPos = area, pos
        local dx = hlcx - self.frame:GetCenter()
        local tt = setupTooltip(self.frame, nil, dx, 0)
        tt:SetText(("%s - %s"):format(self.name, L[area]))
        tt:Show()
        tt:FadeOut()
    end
end

function Bar:detachPlugin(plugin)
    local plugins = self.plugins[plugin.area]
    local lp, rp, index
    for i = 1, #plugins do
        local p = plugins[i]
        if index then
            rp = p
            break
        end
        if p == plugin then
            index = i
        else
            lp = p
        end
    end
    if not index then
        return -- this should never happen
    end
    tremove(plugins, index)
    self.allPlugins[plugin.name] = nil
    plugin.frame:ClearAllPoints()
    self:setRightAttachPoint(lp, rp)
    self:setLeftAttachPoint(rp, lp)
    if plugin.area == 'center' then
        self:updateCenterWidth()
    end
    plugin.area = nil
    self:updateWidth()
end

function Bar:attachPlugin(plugin, area, pos)
    area = area or "left"
    plugin.bar = self
    plugin.area = area
    plugin.db.bar = self.id
    plugin.db.area = area
    local plugins = self.plugins[area]
    local lp, rp
    if not pos then
        local count = #self.plugins[area]
        if count > 0 then
            lp = plugins[count]
            plugin.db.pos = lp.db.pos + 1
        else
            plugin.db.pos = 1
        end
        tinsert(plugins, plugin)
    else
        if pos < 0 then
            pos = 1 - pos
        end
        plugin.db.pos = pos
        local rpi
        for i = 1, #plugins do
            local p = plugins[i]
            if pos <= p.db.pos then
                if not rp then
                    rp = p
                    rpi = i
                end
                if pos < p.db.pos then
                    break
                end
                pos = pos + 1
                p.db.pos = pos
            elseif not rp then
                lp = p
            end
        end
        if rpi then
            tinsert(plugins, rpi, plugin)
        else
            tinsert(plugins, plugin)
        end
    end
    self.allPlugins[plugin.name] = plugin
    plugin.frame:SetParent(self.frame)
    self:setAttachPoints(lp, plugin, rp)
    plugin:globalSettingsChanged()
    if area == "center" then
        self:updateCenterWidth()
    end
end

function Bar:setLeftAttachPoint(plugin, lp)
    if not plugin then
        return
    end
    local area = plugin.area
    if area == "left" then
        if lp then
            plugin.frame:SetPoint("LEFT", lp.frame, "RIGHT", self.db.leftSpacing, 0)
        else
            plugin.frame:SetPoint("LEFT", self.frame, "LEFT", (self.inset + self.db.leftMargin), 0)
        end
    elseif area == "center" then
        if lp then
            plugin.frame:SetPoint("LEFT", lp.frame, "RIGHT", self.db.centerSpacing, 0)
        else
            plugin.frame:SetPoint("LEFT", self.centerFrame, "LEFT", self.db.centerSpacing, 0)
        end
    elseif area == "cright" then
        if lp then
            plugin.frame:SetPoint("LEFT", lp.frame, "RIGHT", self.db.centerSpacing, 0)
        else
            plugin.frame:SetPoint("LEFT", self.centerFrame, "RIGHT", 0, 0)
        end
    end
end

function Bar:setRightAttachPoint(plugin, rp)
    if not plugin then
        return
    end
    local area = plugin.area
    if area == "cleft" then
        if rp then
            plugin.frame:SetPoint("RIGHT", rp.frame, "LEFT", -self.db.centerSpacing, 0)
        else
            plugin.frame:SetPoint("RIGHT", self.centerFrame, "LEFT", 0, 0)
        end
    elseif area == "right" then
        if rp then
            plugin.frame:SetPoint("RIGHT", rp.frame, "LEFT", -self.db.rightSpacing, 0)
        else
            plugin.frame:SetPoint("RIGHT", self.frame, "RIGHT", -(self.inset + self.db.rightMargin), 0)
        end
    end
end

function Bar:setAttachPoints(lp, plugin, rp)
    plugin.frame:ClearAllPoints()
    plugin.frame:SetPoint("TOP", self.frame, "TOP")
    plugin.frame:SetPoint("BOTTOM", self.frame, "BOTTOM")
    self:setLeftAttachPoint(plugin, lp)
    self:setRightAttachPoint(plugin, rp)
    self:setRightAttachPoint(lp, plugin)
    self:setLeftAttachPoint(rp, plugin)
end

function Bar:updateLayout()
    for area, plugins in pairs(self.plugins) do
        for i = 1, #plugins do
            self:setAttachPoints(plugins[i - 1], plugins[i], plugins[i + 1])
        end
    end
    self:updateCenterWidth()
    self:updateWidth()
end

function Bar:updateCenterWidth()
    local cw = sumPluginsWidth(self.plugins.center)
    local numGaps = #self.plugins.center + 1
    cw = cw + (numGaps * self.db.centerSpacing)
    if cw <= 0 then
        cw = 1
    end
    self.centerFrame:SetWidth(cw)
end

local function numSideGaps(numPlugins)
    if numPlugins == 0 then
        return 0
    else
        return numPlugins - 1
    end
end

function Bar:updateWidth()
    if self.db.fitToContentWidth and self.db.attach == 'none' then
        local w = 2 * self.inset
        local numCenterPlugins = #self.plugins.cleft + #self.plugins.center + #self.plugins.cright
        if numCenterPlugins > 0 then
            local lw =
                sumPluginsWidth(self.plugins.left) + self.db.leftSpacing * numSideGaps(#self.plugins.left) + self.db.leftMargin +
                sumPluginsWidth(self.plugins.cleft) + self.db.centerSpacing * #self.plugins.cleft
            local rw =
                sumPluginsWidth(self.plugins.right) + self.db.rightSpacing * numSideGaps(#self.plugins.right) + self.db.rightMargin +
                sumPluginsWidth(self.plugins.cright) + self.db.centerSpacing * #self.plugins.cright
            if lw > rw then
                w = w + lw + lw + self.centerFrame:GetWidth()
            else
                w = w + rw + rw + self.centerFrame:GetWidth()
            end
        elseif #self.plugins.left > 0 then
            if #self.plugins.right > 0 then
                w = w +
                    sumPluginsWidth(self.plugins.left) + self.db.leftSpacing * numSideGaps(#self.plugins.left) + self.db.leftMargin +
                    sumPluginsWidth(self.plugins.right) + self.db.rightSpacing * numSideGaps(#self.plugins.right) + self.db.rightMargin +
                    self.db.centerSpacing
            else
                w = w +
                    sumPluginsWidth(self.plugins.left) + self.db.leftSpacing * numSideGaps(#self.plugins.left) + self.db.leftMargin +
                    self.db.rightMargin
            end
        elseif #self.plugins.right > 0 then
            w = w +
                sumPluginsWidth(self.plugins.right) + self.db.rightSpacing * numSideGaps(#self.plugins.right) + self.db.rightMargin +
                self.db.leftMargin
        else
            w = self.db.frameWidth
        end
        if w < Defaults.minFrameWidth then
            w = Defaults.minFrameWidth
        end
        self.frame:SetWidth(w)
    end
end

function Bar:setId(id)
    if id == self.id then
        return
    end
    self.id = id
    self.name = Bazooka:getBarName(id)
    for name, plugin in pairs(self.allPlugins) do
        plugin.db.bar = id
    end
end

function Bar:toggleHidden(hiddenFlag)
    if hiddenFlag == nil then
        hiddenFlag = not self.db.hidden
    end
    if self.db.hidden == hiddenFlag then
        return
    end
    self.db.hidden = hiddenFlag
    if hiddenFlag then
        self:disableAndHide()
    else
        self:enableAndShow()
    end
end

function Bar:applySettings()
    if self.db.attach == 'none' then
        if self.db.frameWidth == 0 then
            self.db.frameWidth = GetScreenWidth() - self.db.tweakLeft + self.db.tweakRight
        end
        self.frame:SetWidth(self.db.frameWidth)
    end
    self.frame:SetHeight(self.db.frameHeight)
    self.frame:SetFrameStrata(self.db.strata)
    self:applyFontSettings()
    self:applyBGSettings()
    if self.db.hidden then
        self:disableAndHide(true)
    else
        self:enableAndShow(true)
    end
end

function Bar:getSizingPoint(x, y)
    if self.db.attach == 'top' then
        return "BOTTOM"
    elseif self.db.attach == 'bottom' then
        return "TOP"
    else -- none
        local left, bottom, width, height = self.frame:GetRect()
        -- lazy min()...
        local dl, dr, db, dt = x - left, left + width - x, y - bottom, bottom + height - y
        if dl <= width / 10 + 1 then
            return "LEFT"
        elseif dr <= width / 10 + 1 then
            return "RIGHT"
        elseif dt < db then
            return "TOP"
        else
            return "BOTTOM"
        end
    end
end

function Bar:toggleMouse(flag)
    if flag then
        self.frame:EnableMouse(true)
    else
        self.frame:EnableMouse(false)
        self.isMouseInside = false
    end
end

function Bar:setGradientBg()
    if self.bgt then
        if EnableOpacityWorkaround then
            local alpha = self.frame.bzkAlpha
            self.bgt:SetGradientAlpha(self.db.bgGradient, self.db.bgColor.r, self.db.bgColor.g, self.db.bgColor.b, self.db.bgColor.a * alpha, self.db.bgGradientColor.r, self.db.bgGradientColor.g, self.db.bgGradientColor.b, self.db.bgGradientColor.a * alpha)
        else
            self.bgt:SetGradientAlpha(self.db.bgGradient, self.db.bgColor.r, self.db.bgColor.g, self.db.bgColor.b, self.db.bgColor.a, self.db.bgGradientColor.r, self.db.bgGradientColor.g, self.db.bgGradientColor.b, self.db.bgGradientColor.a)
        end
    end
end

function Bar:applyBGSettings()
    if not self.db.bgEnabled then
        self.frame:SetBackdrop(nil)
        return
    end
    self.bg = self.bg or { insets = {} }
    local bg = self.bg
    if LSM then
        bg.bgFile = LSM:Fetch(self.db.bgTextureType, self.db.bgTexture, true)
        if not bg.bgFile then
            bg.bgFile = Defaults.bgFile
            LSM.RegisterCallback(self, "LibSharedMedia_Registered", "mediaUpdate")
        end
        if self.db.bgBorderTexture == 'None' then -- hack for beta green thing
            bg.edgeFile = false
        else
            bg.edgeFile = LSM:Fetch("border", self.db.bgBorderTexture, true)
            if not bg.edgeFile then
                bg.edgeFile = Defaults.edgeFile
                LSM.RegisterCallback(self, "LibSharedMedia_Registered", "mediaUpdate")
            end
        end
    else
        bg.bgFile = Defaults.bgFile
        bg.edgeFile = Defaults.edgeFile
    end
    bg.tile = self.db.bgTile
    bg.tileSize = self.db.bgTileSize
    bg.edgeSize = (bg.edgeFile and bg.edgeFile ~= [[Interface\None]]) and self.db.bgEdgeSize or 0
    if not self.db.bgInset then
        self.db.bgInset = Bazooka:getInsetForEdgeSize(self.db.bgEdgeSize)
    end
    local inset = math.min(bg.edgeSize, self.db.bgInset)
    if inset ~= self.inset then
        self.inset = inset
        self:updateLayout()
    end
    bg.insets.left = inset
    bg.insets.right = inset
    bg.insets.top = inset
    bg.insets.bottom = inset
    self.frame:SetBackdrop(bg)
    self.frame:SetBackdropColor(self.db.bgColor.r, self.db.bgColor.g, self.db.bgColor.b, self.db.bgColor.a)
    self.frame:SetBackdropBorderColor(self.db.bgBorderColor.r, self.db.bgBorderColor.g, self.db.bgBorderColor.b, self.db.bgBorderColor.a)
    if self.db.bgGradient and self.db.bgGradient ~= "" and self.db.bgGradientColor then
        self.bgt = getTexture(bg.bgFile, self.frame:GetRegions())
        self:setGradientBg()
        if EnableGradientWorkaround then
            self.frame:SetScript("OnSizeChanged", Bar.fixGradientOnSizeChanged)
        end
    else
        self.bgt = nil
        if EnableGradientWorkaround then
            self.frame:SetScript("OnSizeChanged", nil)
        end
    end
end

function Bar:applyFontSettings()
    if LSM then
        self.dbFontPath = LSM:Fetch("font", self.db.font, true)
        if not self.dbFontPath then
            LSM.RegisterCallback(self, "LibSharedMedia_Registered", "mediaUpdate")
            self.dbFontPath = Defaults.fontPath
            return
        end
    end
    self:globalSettingsChanged()
end

function Bar:mediaUpdate(event, mediaType, key)
    if mediaType == 'background' or mediaType == 'statusbar' then
        if key == self.db.bgTexture then
            self:applyBGSettings()
        end
    elseif mediaType == 'border' then
        if key == self.db.bgBorderTexture then
            self:applyBGSettings()
        end
    elseif mediaType == 'font' then
        if key == self.db.font then
            self:applyFontSettings()
        end
    end
end

function Bar:globalSettingsChanged()
    for name, plugin in pairs(self.allPlugins) do
        plugin:globalSettingsChanged()
    end
end

function Bar:attachTop(prevBar)
    if prevBar then
        self.frame:SetPoint("TOPLEFT", prevBar.frame, "BOTTOMLEFT", self.db.tweakLeft, self.db.tweakTop)
        self.frame:SetPoint("TOPRIGHT", prevBar.frame, "BOTTOMRIGHT", self.db.tweakRight, self.db.tweakTop)
    else
        self.frame:SetPoint("TOPLEFT", UIParent, "TOPLEFT", self.db.tweakLeft, self.db.tweakTop)
        self.frame:SetPoint("TOPRIGHT", UIParent, "TOPRIGHT", self.db.tweakRight, self.db.tweakTop)
    end
end

function Bar:attachBottom(prevBar)
    if prevBar then
        self.frame:SetPoint("BOTTOMLEFT", prevBar.frame, "TOPLEFT", self.db.tweakLeft, self.db.tweakBottom)
        self.frame:SetPoint("BOTTOMRIGHT", prevBar.frame, "TOPRIGHT", self.db.tweakRight, self.db.tweakBottom)
    else
        self.frame:SetPoint("BOTTOMLEFT", UIParent, "BOTTOMLEFT", self.db.tweakLeft, self.db.tweakBottom)
        self.frame:SetPoint("BOTTOMRIGHT", UIParent, "BOTTOMRIGHT", self.db.tweakRight, self.db.tweakBottom)
    end
end

function Bar:enableAndShow(skipFadeAnim)
    if InCombatLockdown() then
        self:toggleMouse(not self.db.disableMouseInCombat)
        if self.db.fadeInCombat and not self.isMouseInside then
            self:fadeOut(0, nil, skipFadeAnim and self.db.fadeAlpha or nil)
        else
            self:fadeIn(skipFadeAnim and 1.0 or nil)
        end
        for name, plugin in pairs(self.allPlugins) do
            plugin:toggleMouse(not plugin.db.disableMouseInCombat)
        end
    else
        self:toggleMouse(not self.db.disableMouseOutOfCombat)
        if self.db.fadeOutOfCombat and not self.isMouseInside then
            self:fadeOut(0, nil, skipFadeAnim and self.db.fadeAlpha or nil)
        else
            self:fadeIn(skipFadeAnim and 1.0 or nil)
        end
        for name, plugin in pairs(self.allPlugins) do
            plugin:toggleMouse(not plugin.db.disableMouseOutOfCombat)
        end
    end
end

function Bar:disableAndHide(skipFadeAnim)
    self:toggleMouse(false)
    for name, plugin in pairs(self.allPlugins) do
        plugin:toggleMouse(false)
    end
    self:fadeOut(0, 0, skipFadeAnim and 0)
end

Bazooka.Bar = Bar

-- END Bar stuff

-- BEGIN Plugin stuff

local Plugin = {
    name = nil,
    dataobj = nil,
    db = nil,
    frame = nil,
    icon = nil,
    text = nil,
    label = nil,
    hl = nil,
    iconSize = BarDefaults.iconSize,
    iconTextSpacing = BarDefaults.iconTextSpacing,
    fontSize = BarDefaults.fontSize,
    labelColorHex = colorToHex(BarDefaults.labelColor),
    suffixColorHex = colorToHex(BarDefaults.suffixColor),
}

setDeepCopyIndex(Plugin)

Plugin.OnEnter = function(frame, ...)
    local self = frame.bzkPlugin
    self.bar.OnEnter(frame)
    if Bazooka.draggedFrame then
        return
    end
    if Bazooka.db.profile.enableHL then
        self:highlight(true)
    end
    self:showTip()
end

Plugin.OnLeave = function(frame, ...)
    local self = frame.bzkPlugin
    self.bar.OnLeave(frame)
    self:highlight(nil)
    self:hideTip()
end

Plugin.OnMouseDown = function(frame, ...)
    local self = frame.bzkPlugin
    if self.db.hideTipOnClick then
        self:hideTip(true)
    end
end

Plugin.OnMouseWheel = function(frame, ...)
    local self = frame.bzkPlugin
    if self.db.hideTipOnClick then
        self:hideTip(true)
    end
    if self.dataobj.OnMouseWheel then
        self.dataobj.OnMouseWheel(frame, ...)
    end
end

Plugin.OnClick = function(frame, ...)
    local self = frame.bzkPlugin
    if self.dataobj.OnClick then
        self.dataobj.OnClick(frame, ...)
    end
end

Plugin.OnDoubleClick = function(frame, ...)
    local self = frame.bzkPlugin
    if self.dataobj.OnDoubleClick then
        self.dataobj.OnDoubleClick(frame, ...)
    elseif self.dataobj.OnClick then
        self.dataobj.OnClick(frame, ...)
    end
end

Plugin.OnUpdate = function(frame)
    local x, y = getScaledCursorPosition()
    if x ~= Bazooka.lastX or y ~= Bazooka.lastY then
        Bazooka.lastX, Bazooka.lastY = x, y
        Bazooka:highlight(Bazooka:getDropPlace(x, y))
    end
end

Plugin.OnDragStart = function(frame)
    if Bazooka.locked then
        return
    end
    if Bazooka.tipOwner then
        Bazooka.tipOwner:hideTip(true)
        Bazooka.tipOwner = nil
    end
    local self = frame.bzkPlugin
    self:highlight(nil)
    self:detach()
    updateUIScale()
    frame:SetAlpha(0.7)
    Bazooka.draggedFrame, Bazooka.lastX, Bazooka.lastY = frame, nil, nil
    frame:StartMoving()
    frame:SetScript("OnUpdate", Plugin.OnUpdate)
end

Plugin.OnDragStop = function(frame)
    if not Bazooka.draggedFrame then
        return
    end
    local self = frame.bzkPlugin
    Bazooka.draggedFrame = nil
    frame:SetScript("OnUpdate", nil)
    frame:StopMovingOrSizing()
    frame:SetAlpha(1.0)
    Bazooka:highlight(nil)
    if Bazooka.locked then
        self:reattach()
        return
    end
    local bar, area, pos = Bazooka:getDropPlace(getScaledCursorPosition())
    if bar then
        bar:attachPlugin(self, area, pos)
        Bazooka:updatePluginOptions()
    else
        self:reattach()
        Bazooka:openStaticDialog(BzkDialogDisablePlugin, self, self:getTitle())
    end
end

-- BEGIN EnableOpacityWorkaround
Plugin.setAlphaByParts = function(frame, alpha)
    frame.bzkAlpha = alpha
    local self = frame.bzkPlugin
    if self.bar then
        alpha = alpha * self.bar.frame:GetAlpha()
    end
    if self.icon then
        self.icon:SetAlpha(alpha)
    end
    if self.text then
        self.text:SetAlpha(alpha)
    end
end

Plugin.getAlphaByParts = function(frame)
    return frame.bzkAlpha
end
-- END EnableOpacityWorkaround

function Plugin:New(name, dataobj, db)
    local plugin = setmetatable({}, Plugin)
    plugin.name = name
    plugin.dataobj = dataobj

    if dataobj.tocname then
        local addonName, addonTitle = GetAddOnInfo(dataobj.tocname or name)
        plugin.title = name .. '[' .. (addonTitle or addonName) .. ']'
    else
        plugin.title = name
    end
    plugin.db = db
    plugin:applySettings()
    return plugin
end

function Plugin:getTitle()
    if self.db.useLabelAsTitle and self.dataobj.label then
        local title = stripColors(self.dataobj.label)
        if title ~= "" then
            return title
        end
    end
    return self.title
end

function Plugin:setTipScale(tt)
    if self.db.overrideTooltipScale then
        self.origTipScale = tt:GetScale()
        tt:SetScale(self.db.tooltipScale)
    end
end

function Plugin:resetTipScale(tt)
    if self.origTipScale then
        tt:SetScale(self.origTipScale)
        self.origTipScale = nil
    end
end

function Plugin:showTip(modifierKey, modifierState)
    if Bazooka.checkForceHide then
        Bazooka.checkForceHide:forceHideFrames(UIParent:GetChildren())
        Bazooka.checkForceHide = nil
    end
    local origTipType = self.tipType
    if Bazooka.tipOwner then
        Bazooka.tipOwner:hideTip(true)
        Bazooka.tipOwner = nil
    end
    if self.db.disableTooltip or (self.db.disableTooltipInCombat and InCombatLockdown()) then
        return
    end
    if self.db.manualTooltip then
        if Bazooka.db.profile.manualTooltipToggle then
            if not IsModifierKeyDown() then
                return
            end
        else
            if not IsModifierKeyDown() and not origTipType then
                return
            end
        end
    end
    Bazooka.tipOwner = self
    if Bazooka.db.profile.simpleTip and IsAltKeyDown() and not modifierKey then
        self.tipType = 'simple'
        local tt = setupTooltip(self.frame)
        tt:SetText(self:getTitle())
        tt:Show()
        return
    end
    local dataobj = self.dataobj
    if dataobj.tooltip then
        self.tipType = 'tooltip'
        local tt = setupTooltip(self.frame, dataobj.tooltip)
        self:setTipScale(tt)
        tt:Show()
    elseif dataobj.OnEnter then
        self.tipType = 'OnEnter'
        GameTooltip:Hide()
        self:setTipScale(GameTooltip)
        dataobj.OnEnter(self.frame)
    elseif dataobj.OnTooltipShow then
        self.tipType = 'OnTooltipShow'
        local tt = setupTooltip(self.frame)
        self:setTipScale(tt)
        dataobj.OnTooltipShow(tt)
        tt:Show()
    elseif Bazooka.db.profile.simpleTip then
        self.tipType = 'simple'
        local tt = setupTooltip(self.frame)
        self:setTipScale(tt)
        tt:SetText(self:getTitle())
        tt:Show()
    end
end

function Plugin:toggleMouse(flag)
    self.frame:EnableMouse(flag)
    self.frame:EnableMouseWheel(flag)
end

-- hides frames that are not Bazooka's but are anchored to our frame
-- useage: plugin:forceHideFrames(UIParent:GetChildren())
function Plugin:forceHideFrames(frame, ...)
    if not frame then
        return
    end
    if not frame:IsForbidden() then
        if not frame.bzkPlugin then
            -- we assume that if the frame is anchored to us, it's _only_ anchored to us
            local _, relativeTo = frame:GetPoint()
            if relativeTo == self.frame then
                frame:Hide()
            end
        end
    end
    return self:forceHideFrames(...)
end

function Plugin:hideTip(force)
    if not Bazooka.tipOwner then
        return
    end
    Bazooka.tipOwner = nil
    if not self.tipType then
        return
    end
    if self.tipType == 'simple' then
        local tt = setupTooltip()
        tt:Hide()
        self:resetTipScale(tt)
    elseif self.tipType == 'OnTooltipShow' then
        if self.dataobj.OnLeave then
            self.dataobj.OnLeave(self.frame)
        end
        local tt = setupTooltip()
        tt:Hide()
        self:resetTipScale(tt)
    elseif self.tipType == 'OnEnter' then
        if self.dataobj.OnLeave then
            self.dataobj.OnLeave(self.frame)
        end
        self:resetTipScale(GameTooltip)
    elseif self.tipType == 'tooltip' then
        local tt = self.dataobj.tooltip
        tt:Hide()
        self:resetTipScale(tt)
    end
    self.tipType = nil
    if self.db.forceHideTip then
        if force then
            self:forceHideFrames(UIParent:GetChildren())
        else
            Bazooka.checkForceHide = self
        end
    end
end

function Plugin:getDropPlace(x, y)
    local left, bottom, width, height = self.frame:GetRect()
    local ld = distance2(x, y, left, bottom + height / 2)
    local rd = distance2(x, y, left + width, bottom + height / 2)
    if ld < rd then
        return self.db.pos, ld
    else
        return -self.db.pos, rd
    end
end

function Plugin:highlight(flag)
    if flag then
        if not self.hl then
            self.hl = self.frame:CreateTexture("BazookaHL_" .. self.name, "OVERLAY")
            self.hl:SetTexture(HighlightImage)
            self.hl:SetAllPoints()
        end
        self.frame:SetAlpha(1.0)
        self.hl:Show()
    else
        local bdb = self.bar and self.bar.db or BarDefaults
        self.frame:SetAlpha(bdb.pluginOpacity)
        if self.hl then
            self.hl:Hide()
        end
    end
end

function Plugin:globalSettingsChanged()
    local bdb = self.bar and self.bar.db or BarDefaults
    self.labelColorHex = colorToHex(bdb.labelColor)
    self.suffixColorHex = colorToHex(bdb.suffixColor)
    self.iconTextSpacing = bdb.iconTextSpacing
    self.iconSize = bdb.iconSize
    self.fontSize = bdb.fontSize
    if self.text then
        local dbFontPath = self.bar and self.bar.dbFontPath or bdb.fontPath
        local fontPath, fontSize, fontOutline = self.text:GetFont()
        fontOutline = fontOutline or ""
        if dbFontPath ~= fontPath or bdb.fontSize ~= fontSize or bdb.fontOutline ~= fontOutline then
            self.text:SetFont(dbFontPath, self.fontSize, bdb.fontOutline)
        end
        if bdb.fontShadow then
            self.text:SetShadowOffset(1, -1)
        else
            self.text:SetShadowOffset(0, 0)
        end
        self.text:SetTextColor(bdb.textColor.r, bdb.textColor.g, bdb.textColor.b, bdb.textColor.a)
        self:setText()
    end
    if self.icon then
        self.icon:SetWidth(self.iconSize)
        self.icon:SetHeight(self.iconSize)
    end
    self.frame:SetAlpha(bdb.pluginOpacity)
    self:updateLayout(true)
    if bdb.hidden then
        self:toggleMouse(false)
    elseif InCombatLockdown() then
        self:toggleMouse(not self.db.disableMouseInCombat)
    else
        self:toggleMouse(not self.db.disableMouseOutOfCombat)
    end
end

function Plugin:createIcon()
    self.icon = self.frame:CreateTexture("BazookaPluginIcon_" .. self.name, "ARTWORK")
    self.icon:ClearAllPoints()
    local iconSize = BarDefaults.iconSize
    self.icon:SetWidth(iconSize)
    self.icon:SetHeight(iconSize)
end

function Plugin:createText()
    self.text = self.frame:CreateFontString("BazookaPluginText_" .. self.name, "ARTWORK", "GameFontNormal")
    self.text:SetFont(Defaults.fontPath, BarDefaults.fontSize, BarDefaults.fontOutline)
    self.text:SetWordWrap(false)
end

function Plugin:updateLayout(forced)
    local align = self.db.alignment or "LEFT"
    if self.icon then
        self.icon:ClearAllPoints()
        self.icon:SetPoint(align, self.frame, align, 0, 0)
    end

    local w = 0
    if self.db.showText or self.db.showValue or self.db.showLabel then
        local tw = self.text:GetStringWidth()
        local iw = self.db.showIcon and self.icon:GetWidth() or 0
        if tw > 0 then
            if self.db.maxTextWidth and self.db.maxTextWidth < tw then
                tw = self.db.maxTextWidth
            end
            local offset = (iw > 0) and (iw + self.iconTextSpacing) or 0
            self.text:ClearAllPoints()
            if align == "LEFT" then
                self.text:SetPoint(align, self.frame, align, offset, 0)
            else
                self.text:SetPoint(align, self.frame, align, -offset, 0)
            end
            self.text:SetJustifyH(align)
            w = offset + tw
        elseif iw > 0 then
            w = iw
        else
            w = EmptyPluginWidth
        end
    elseif self.db.showIcon then
        local iw = self.icon:GetWidth()
        if iw > 0 then
            w = iw
        else
            w = EmptyPluginWidth
        end
    else
        w = EmptyPluginWidth
    end
    local ow = self.origWidth or self.frame:GetWidth()
    if forced or w > ow or w < ow - self.db.shrinkThreshold then
        self.origWidth = w
        self.frame:SetWidth(w)
        if self.bar then
            if self.area == 'center' then
                self.bar:updateCenterWidth()
            end
            self.bar:updateWidth()
        end
    end
end

function Plugin:enable()
    if not self.frame then
        self.frame = CreateFrame("Button", "BazookaPlugin_" .. self.name, UIParent)
        self.frame.bzkPlugin = self
        if EnableOpacityWorkaround then
            self.frame.bzkAlpha = self.frame:GetAlpha()
            self.frame.SetAlpha = Plugin.setAlphaByParts
            self.frame.GetAlpha = Plugin.getAlphaByParts
        end
        self.frame:RegisterForDrag("LeftButton")
        self.frame:RegisterForClicks("AnyUp")
        self.frame:SetMovable(true)
        self.frame:SetScript("OnEnter", Plugin.OnEnter)
        self.frame:SetScript("OnLeave", Plugin.OnLeave)
        self.frame:SetScript("OnClick", Plugin.OnClick)
        self.frame:SetScript("OnDoubleClick", Plugin.OnDoubleClick)
        self.frame:SetScript("OnMouseDown", Plugin.OnMouseDown)
        self.frame:SetScript("OnDragStart", Plugin.OnDragStart)
        self.frame:SetScript("OnDragStop", Plugin.OnDragStop)
        self.frame:SetScript("OnMouseWheel", Plugin.OnMouseWheel)
        if self.dataobj.OnReceiveDrag then
            self.frame:SetScript("OnReceiveDrag", self.dataobj.OnReceiveDrag)
        end
        self.frame:EnableMouse(true)
        self.frame:EnableMouseWheel(true)
    end
    self.frame:Show()
end

function Plugin:disable()
    if self.frame then
        self.frame:ClearAllPoints()
        self.frame:Hide()
        self.bar = nil
    end
    LDB.UnregisterAllCallbacks(self)
end

function Plugin:updateLDBCallback(attr, method, reg)
    local callback = ("LibDataBroker_AttributeChanged_%s_%s"):format(self.name, attr)
    if reg then
        LDB.RegisterCallback(self, callback, method)
    else
        LDB.UnregisterCallback(self, callback)
    end
end

function Plugin:updateLDBCallbacks()
    self:updateLDBCallback("icon", "setIcon", self.db.showIcon)
    self:updateLDBCallback("iconCoords", "setIconCoords", self.db.showIcon)
    self:updateLDBCallback("iconR", "setIconColor", self.db.showIcon)
    self:updateLDBCallback("iconG", "setIconColor", self.db.showIcon)
    self:updateLDBCallback("iconB", "setIconColor", self.db.showIcon)

    self:updateLDBCallback("label", "updateLabel", self.db.showLabel)
    self:updateLDBCallback("text", "setText", self.db.showText)
    self:updateLDBCallback("value", "setText", self.db.showValue)
    self:updateLDBCallback("suffix", "setText", self.db.showSuffix)
end

function Plugin:applySettings()
    if not self.db.enabled then
        self:detach()
        self:disable()
        return
    end
    self:enable()
    if self.db.showIcon then
        if not self.icon then
            self:createIcon()
        end
        self:setIcon()
        self:setIconColor()
        self:setIconCoords()
        self.icon:Show()
    elseif self.icon then
        self.icon:Hide()
    end
    if self.db.showText or self.db.showValue or self.db.showLabel then
        if not self.text then
            self:createText()
        end
        self.text:SetWidth(self.db.maxTextWidth or 0)
        if self.db.showLabel then
            self:updateLabel()
        else
            self:setText()
        end
        self.text:Show()
    elseif self.text then
        self.text:SetFormattedText("")
        self.text:Hide()
    end
    if not self.bar or self.bar.id ~= self.db.bar or self.area ~= self.db.area then
        self:detach()
        Bazooka:attachPlugin(self)
    end
    self:globalSettingsChanged()
    self:updateLabel()
    self:updateLayout(true)
    self:updateLDBCallbacks()
end

function Plugin:setIcon()
    if not self.db.showIcon then
        return
    end
    local dataobj = self.dataobj
    local icon = self.icon
    icon:SetTexture(dataobj.icon)
    if self.db.iconBorderClip > 0 and not dataobj.iconCoords then
        local tl, br = self.db.iconBorderClip, (1 - self.db.iconBorderClip)
        icon:SetTexCoord(tl, br, tl, br)
    end
end

function Plugin:setIconColor()
    if not self.db.showIcon then
        return
    end
    local dataobj = self.dataobj
    if dataobj.iconR then
        self.icon:SetVertexColor(dataobj.iconR, dataobj.iconG, dataobj.iconB)
    end
end

function Plugin:setIconCoords()
    if not self.db.showIcon then
        return
    end
    local dataobj = self.dataobj
    if dataobj.iconCoords then
        self.icon:SetTexCoord(unpack(dataobj.iconCoords))
    end
end

function Plugin:setText()
    if self.bar and self.bar.isFullyHidden then
        return
    end
    local dataobj = self.dataobj
    if self.db.showLabel and self.label then
        if self.db.showText and dataobj.text then
            if self.db.showValue and dataobj.value then
                if self.db.showSuffix and dataobj.suffix then
                    if self.db.stripColors then
                        self.text:SetFormattedText("|c%s%s:|r %s %s |c%s%s|r", self.labelColorHex, stripColors(self.label), stripColors(dataobj.text), stripColors(dataobj.value), self.suffixColorHex, stripColors(dataobj.suffix))
                    else
                        self.text:SetFormattedText("|c%s%s:|r %s %s |c%s%s|r", self.labelColorHex, self.label, dataobj.text, dataobj.value, self.suffixColorHex, dataobj.suffix)
                    end
                else
                    if self.db.stripColors then
                        self.text:SetFormattedText("|c%s%s:|r %s %s", self.labelColorHex, stripColors(self.label), stripColors(dataobj.text), stripColors(dataobj.value))
                    else
                        self.text:SetFormattedText("|c%s%s:|r %s %s", self.labelColorHex, self.label, dataobj.text, dataobj.value)
                    end
                end
            else
                if self.db.stripColors then
                    self.text:SetFormattedText("|c%s%s:|r %s", self.labelColorHex, stripColors(self.label), stripColors(dataobj.text))
                else
                    self.text:SetFormattedText("|c%s%s:|r %s", self.labelColorHex, self.label, dataobj.text)
                end
            end
        elseif self.db.showValue and dataobj.value then
            if self.db.showSuffix and dataobj.suffix then
                if self.db.stripColors then
                    self.text:SetFormattedText("|c%s%s:|r %s |c%s%s|r", self.labelColorHex, stripColors(self.label), stripColors(dataobj.value), self.suffixColorHex, stripColors(dataobj.suffix))
                else
                    self.text:SetFormattedText("|c%s%s:|r %s |c%s%s|r", self.labelColorHex, self.label, dataobj.value, self.suffixColorHex, dataobj.suffix)
                end
            else
                if self.db.stripColors then
                    self.text:SetFormattedText("|c%s%s:|r %s", self.labelColorHex, stripColors(self.label), stripColors(dataobj.value))
                else
                    self.text:SetFormattedText("|c%s%s:|r %s", self.labelColorHex, self.label, dataobj.value)
                end
            end
        else
            if self.db.stripColors then
                self.text:SetFormattedText("|c%s%s|r", self.labelColorHex, stripColors(self.label))
            else
                self.text:SetFormattedText("|c%s%s|r", self.labelColorHex, self.label)
            end
        end
        self:updateLayout()
    elseif self.db.showText and dataobj.text then
        if self.db.showValue and dataobj.value then
            if self.db.showSuffix and dataobj.suffix then
                if self.db.stripColors then
                    self.text:SetFormattedText("%s %s |c%s%s|r", stripColors(dataobj.text), stripColors(dataobj.value), self.suffixColorHex, stripColors(dataobj.suffix))
                else
                    self.text:SetFormattedText("%s %s |c%s%s|r", dataobj.text, dataobj.value, self.suffixColorHex, dataobj.suffix)
                end
            else
                if self.db.stripColors then
                    self.text:SetFormattedText("%s %s", stripColors(dataobj.text), stripColors(dataobj.value))
                else
                    self.text:SetFormattedText("%s %s", dataobj.text, dataobj.value)
                end
            end
        else
            if self.db.stripColors then
                self.text:SetFormattedText("%s", stripColors(dataobj.text))
            else
                self.text:SetFormattedText("%s", dataobj.text)
            end
        end
        self:updateLayout()
    elseif self.db.showValue and dataobj.value then
        if self.db.showSuffix and dataobj.suffix then
            if self.db.stripColors then
                self.text:SetFormattedText("%s |c%s%s|r", stripColors(dataobj.value), self.suffixColorHex, stripColors(dataobj.suffix))
            else
                self.text:SetFormattedText("%s |c%s%s|r", dataobj.value, self.suffixColorHex, dataobj.suffix)
            end
        else
            if self.db.stripColors then
                self.text:SetFormattedText("%s", stripColors(dataobj.value))
            else
                self.text:SetFormattedText("%s", dataobj.value)
            end
        end
        self:updateLayout()
    elseif self.text then
        self.text:SetFormattedText("")
        self:updateLayout()
    end
end

function Plugin:updateLabel()
    self.label = self.dataobj.label
    if not self.label and self.db.showTitle then
        self.label = self.title
    end
    self:setText()
end

function Plugin:reattach()
    if self.bar then
        self.bar:attachPlugin(self, self.db.area, self.db.pos)
    end
end

function Plugin:detach()
    if self.bar then
        self.bar:detachPlugin(self)
        if self.frame then
            self.frame:SetFrameStrata("HIGH")
        end
    end
end

Bazooka.Plugin = Plugin

-- END Plugin stuff

-- BEGIN AceAddon stuff

function Bazooka:OnInitialize()
    self.db = LibStub("AceDB-3.0"):New("BazookaDB", defaults, true)
    EnableOpacityWorkaround = self.db.global.enableOpacityWorkaround
    self:initAnchors()
    self:setupLDB()
    self.db.RegisterCallback(self, "OnProfileChanged", "profileChanged")
    self.db.RegisterCallback(self, "OnProfileCopied", "profileChanged")
    self.db.RegisterCallback(self, "OnProfileReset", "profileChanged")
    self.db.RegisterCallback(self, "OnDatabaseShutdown", "OnDisable")
    self:profileChanged()
    self:setupDummyOptions()
end

function Bazooka:OnEnable(first)
    self.enabled = true
    self:init()
    self:RegisterEvent("PLAYER_REGEN_DISABLED", "onEnteringCombat")
    self:RegisterEvent("PLAYER_REGEN_ENABLED", "onLeavingCombat")
    self:RegisterEvent("MODIFIER_STATE_CHANGED")
    LDB.RegisterCallback(self, "LibDataBroker_DataObjectCreated", "dataObjectCreated")
end

function Bazooka:OnDisable()
    self.enabled = false
    self:UnregisterAllEvents()
    LDB.UnregisterAllCallbacks(self)
    for i = 1, #self.bars do
        self.bars[i].frame:Hide()
    end
    for name, plugin in pairs(self.plugins) do
        plugin:disable()
    end
end

-- END AceAddon stuff

-- BEGIN handlers

function Bazooka:onEnteringCombat()
    self:lock()
    for i = 1, #self.bars do
        local bar = self.bars[i]
        if not bar.db.hidden then
            bar:toggleMouse(not bar.db.disableMouseInCombat)
            if bar.db.fadeInCombat and not bar.isMouseInside then
                bar:fadeOut(0)
            else
                bar:fadeIn()
            end
            for name, plugin in pairs(bar.allPlugins) do
                plugin:toggleMouse(not plugin.db.disableMouseInCombat)
            end
        end
    end
end

function Bazooka:onLeavingCombat()
    if not self.db.profile.locked then
        self:unlock()
    end
    for i = 1, #self.bars do
        local bar = self.bars[i]
        if not bar.db.hidden then
            bar:toggleMouse(not bar.db.disableMouseOutOfCombat)
            if bar.db.fadeOutOfCombat and not bar.isMouseInside then
                bar:fadeOut(0)
            else
                bar:fadeIn()
            end
            for name, plugin in pairs(bar.allPlugins) do
                plugin:toggleMouse(not plugin.db.disableMouseOutOfCombat)
            end
        end
    end
end

function Bazooka:MODIFIER_STATE_CHANGED(event, key, state)
    local tipOwner = Bazooka.tipOwner
    if tipOwner and (tipOwner.db.manualTooltip or Bazooka.db.profile.simpleTip) then
        tipOwner:showTip(key, state)
    end
end

function Bazooka:dataObjectCreated(event, name, dataobj)
    self:createPlugin(name, dataobj)
    self:updatePluginOptions()
end

function Bazooka:profileChanged()
    if not self.enabled then
        return
    end
    self:init()
end

-- END handlers

function Bazooka:initAnchors()
    self.topTop, self.topBottom = 1, 0
    if not self.TopAnchor then
        self.TopAnchor = CreateFrame("Frame", "Bazooka_TopAnchor", UIParent)
        self.TopAnchor:EnableMouse(false)
    end
    self:setTopAnchorPoints()

    self.bottomTop, self.bottomBottom = 0, -1
    if not self.BottomAnchor then
        self.BottomAnchor = CreateFrame("Frame", "Bazooka_BottomAnchor", UIParent)
        self.BottomAnchor:EnableMouse(false)
    end
    self:setBottomAnchorPoints()
end

function Bazooka:setTopAnchorPoints()
    self.TopAnchor:ClearAllPoints()
    self.TopAnchor:SetPoint("TOP", UIParent, "TOP", 0, self.topTop)
    self.TopAnchor:SetPoint("BOTTOM", UIParent, "TOP", 0, self.topBottom)
    self.TopAnchor:SetPoint("LEFT", UIParent, "LEFT", 0, 0)
    self.TopAnchor:SetPoint("RIGHT", UIParent, "RIGHT", 0, 0)
end

function Bazooka:setBottomAnchorPoints()
    self.BottomAnchor:ClearAllPoints()
    self.BottomAnchor:SetPoint("TOP", UIParent, "BOTTOM", 0, self.bottomTop)
    self.BottomAnchor:SetPoint("BOTTOM", UIParent, "BOTTOM", 0, self.bottomBottom)
    self.BottomAnchor:SetPoint("LEFT", UIParent, "LEFT", 0, 0)
    self.BottomAnchor:SetPoint("RIGHT", UIParent, "RIGHT", 0, 0)
end

function Bazooka:getBarName(id)
    return L["Bar#%d"]:format(id)
end

function Bazooka:init()
    self.attachedBars.top = {}
    self.attachedBars.bottom = {}
    for i = 1, #self.bars do
        self.bars[i]:disable()
    end
    for name, plugin in pairs(self.plugins) do
        plugin:disable()
    end
    self.numBars = 0
    local numBars = self.db.profile.numBars
    if not numBars or numBars <= 0 then
        numBars = 1
    end
    for i = 1, numBars do
        self:createBar()
    end
    for name, dataobj in LDB:DataObjectIterator() do
        self:createPlugin(name, dataobj)
    end
    self:applySettings()
    self:updateMainOptions()
    self:updateBarOptions()
    self:updatePluginOptions()
    self:updateAnchors()
end

function Bazooka:createBar()
    self.numBars = self.numBars + 1
    if self.numBars > self.db.profile.numBars then
        self.db.profile.numBars = self.numBars
    end
    local id =  self.numBars
    local db = self.db.profile.bars[id]
    local bar = self.bars[id]
    if not db.pos then
        db.tweakTop, db.tweakBottom, db.tweakLeft, db.tweakRight = 0, 0, 0, 0
    end
    if bar then
        bar:enable(id, db)
        bar:applySettings()
    else
        bar = Bar:New(id, db)
        self.bars[bar.id] = bar
    end
    self:attachBar(bar, bar.db.attach, bar.db.pos)
    self:updateAnchors()
    return bar
end

local function insertBar(bars, pos, bar)
    local pb, nb, nbi
    for i = 1, #bars do
        local b = bars[i]
        if pos <= b.db.pos then
            if not nb then
                nb = b
                nbi = i
            end
            if pos < b.db.pos then
                break
            end
            pos = pos + 1
            b.db.pos = pos
        elseif not nb then
            pb = b
        end
    end
    if nbi then
        tinsert(bars, nbi, bar)
    else
        tinsert(bars, bar)
    end
    return pb, nb
end

function Bazooka:attachBarImpl(bar, attach, pos, attachFunc)
    local bars = self.attachedBars[attach]
    if not pos then
        if #bars > 0 then
            pos = bars[#bars].db.pos + 1
        else
            pos = 1
        end
    end
    local prevBar, nextBar = insertBar(bars, pos, bar)
    bar[attachFunc](bar, prevBar)
    if nextBar then
        nextBar[attachFunc](nextBar, bar)
    end
    return pos
end

function Bazooka:attachBar(bar, attach, pos)
    attach = attach or 'none'
    bar.db.attach = attach
    bar.frame:ClearAllPoints()
    if attach == 'top' then
        pos = self:attachBarImpl(bar, attach, pos, "attachTop")
    elseif attach == 'bottom' then
        pos = self:attachBarImpl(bar, attach, pos, "attachBottom")
    else
        pos = 0
        bar.frame:SetWidth(bar.db.frameWidth)
        bar.frame:SetHeight(bar.db.frameHeight)
        bar.frame:SetPoint(bar.db.point, UIParent, bar.db.relPoint, bar.db.x, bar.db.y)
    end
    bar.db.pos = pos
end

function Bazooka:detachBarImpl(bar, attach, attachFunc)
    local bars = self.attachedBars[attach]
    local prevBar
    for i = 1, #bars do
        local cb = bars[i]
        if cb == bar then
            tremove(bars, i)
            cb = bars[i]
            if cb then
                cb[attachFunc](cb, prevBar)
            end
            break
        end
        prevBar = cb
    end
end

function Bazooka:detachBar(bar)
    self:detachBarImpl(bar, 'top', "attachTop")
    self:detachBarImpl(bar, 'bottom', "attachBottom")
end

function Bazooka:removeBar(bar)
    if self.numBars <= 1 then
        return
    end
    self:detachBar(bar)
    for name, plugin in pairs(bar.allPlugins) do
        plugin.db.bar, plugin.db.area, plugin.db.pos = 1, 'left', nil
        Bazooka:disablePlugin(plugin)
    end
    bar:disable()
    self.numBars = self.numBars - 1
    self.db.profile.numBars = self.numBars
    for i = bar.id, self.numBars do
        self.db.profile.bars[i] = self.db.profile.bars[i + 1]
        self.bars[i] = self.bars[i + 1]
        self.bars[i]:setId(i)
    end
    self.db.profile.bars[self.numBars + 1] = nil
    -- hackish way to get back default overrides
    local t = self.db.profile.bars[self.numBars + 1]
    if defaults.profile.bars[self.numBars + 1] then
        for k, v in pairs(defaults.profile.bars[self.numBars + 1]) do
            t[k] = v
        end
    end

    self.bars[self.numBars + 1] = nil
    self:updateAnchors()
end

function Bazooka:disableDBIcon()
    if self.isDBIconDisabled then
        return
    end
    local DBIcon = LibStub:GetLibrary("LibDBIcon-1.0", true)
    if DBIcon and DBIcon.DisableLibrary then
        DBIcon:DisableLibrary()
        self.isDBIconDisabled = true
    end
end

function Bazooka:enableDBIcon()
    if not self.isDBIconDisabled then
        return
    end
    local DBIcon = LibStub:GetLibrary("LibDBIcon-1.0", true)
    if DBIcon and DBIcon.EnableLibrary then
        DBIcon:EnableLibrary()
        self.isDBIconDisabled = nil
    end
end

function Bazooka:createPlugin(name, dataobj)
    local pt = dataobj.type or (dataobj.text and "data source" or "launcher")
    local db = self.db.profile.plugins[pt][name]
    local plugin = self.plugins[name]
    if plugin then
        plugin.db = db
        plugin.dataobj = dataobj
        plugin:applySettings()
    else
        plugin = Plugin:New(name, dataobj, db)
        self.plugins[name] = plugin
    end
    if self.db.profile.disableDBIcon then
        self:disableDBIcon()
    end
    self:updatePluginOptions()
    return plugin
end

function Bazooka:disablePlugin(plugin)
    plugin.db.enabled = false
    plugin:applySettings()
end

function Bazooka:attachPlugin(plugin)
    local bar = self.bars[plugin.db.bar]
    if not bar then
        self.bars[1]:attachPlugin(plugin)
    else
        bar:attachPlugin(plugin, plugin.db.area, plugin.db.pos)
    end
end

function Bazooka:applySettings()
    if not self:IsEnabled() then
        self:OnDisable()
        return
    end
    self:toggleLocked(self.db.profile.locked == true)
    for i = 1, #self.bars do
        local bar = self.bars[i]
        if bar.db.hidden then
            bar:disableAndHide(true)
        end
    end
    if self.db.profile.disableDBIcon then
        self:disableDBIcon()
    else
        self:enableDBIcon()
    end
    if Jostle then
        if self.db.profile.adjustFrames then
            Jostle:RegisterTop(self.TopAnchor)
            Jostle:RegisterBottom(self.BottomAnchor)
            Jostle:EnableTopAdjusting()
            Jostle:EnableBottomAdjusting()
        else
            Jostle:Unregister(self.TopAnchor)
            Jostle:Unregister(self.BottomAnchor)
            Jostle:DisableTopAdjusting()
            Jostle:DisableBottomAdjusting()
        end
    end
end

function Bazooka:getBarsTopBottom(bars)
    local barsTop, barsBottom, prevBar
    for i = 1, #bars do
        local bar = bars[i]
        bar.parent = prevBar
        local top, bottom = bar:getTopBottom()
        if not barsTop or barsTop < top then
            barsTop = top
        end
        if not barsBottom or barsBottom > bottom then
            barsBottom = bottom
        end
        prevBar = bar
    end
    return barsTop, barsBottom
end

function Bazooka:updateAnchors()
    local topTop, topBottom = self:getBarsTopBottom(self.attachedBars['top'])
    local bottomTop, bottomBottom = self:getBarsTopBottom(self.attachedBars['bottom'])
    if not topTop then
        topTop, topBottom = 1, 0
    end
    if not bottomTop then
        bottomTop, bottomBottom = 0, -1
    end
    local needJostleRefresh
    if self.topTop ~= topTop or self.topBottom ~= topBottom then
        self.topTop, self.topBottom = topTop, topBottom
        self:setTopAnchorPoints()
        needJostleRefresh = true
    end
    if self.bottomTop ~= bottomTop or self.bottomBottom ~= bottomBottom then
        self.bottomTop, self.bottomBottom = bottomTop, bottomBottom
        self:setBottomAnchorPoints()
        needJostleRefresh = true
    end
    if needJostleRefresh and Jostle and self.db.profile.adjustFrames then
        Jostle:Refresh()
    end
end

function Bazooka:lock()
    self.locked = true
    for i = 1, #self.ldbs do 
        self.ldbs[i].icon = Icon
    end
    self:closeStaticDialog(BzkDialogDisablePlugin)
end

function Bazooka:unlock()
    self.locked = false
    for i = 1, #self.ldbs do
        self.ldbs[i].icon = UnlockedIcon
    end
end

function Bazooka:toggleLocked(flag)
    if flag == nil then
        flag = not self.db.profile.locked
    end
    if flag ~= self.db.profile.locked then
        self:updateMainOptions()
    end
    self.db.profile.locked = flag
    if flag then
        self:lock()
    else
        self:unlock()
    end
end

local function extraLauncherName(idx)
    return Bazooka.AppName .. "_" .. idx
end

function Bazooka:setupLDB(forceEnableExtraLaunchers)
    self.ldbOnClick = self.ldbOnClick or function(frame, button)
            if IsShiftKeyDown() or button == "MiddleButton" then
                self:toggleLocked()
            elseif button == "LeftButton" then
                self:toggleBars()
            elseif button == "RightButton" then
                self:openConfigDialog()
            end
        end
    self.ldbOnTooltipShow = self.ldbOnTooltipShow or function(tt)
            tt:AddLine(self.AppName)
            tt:AddLine(L["|cffeda55fLeft Click|r to toggle marked bars"])
            tt:AddLine(L["|cffeda55fShift Click|r to lock/unlock frames"])
            tt:AddLine(L["|cffeda55fRight Click|r to open the configuration window"])
        end
    local ldbIcon = self.db.profile.locked and Icon or UnlockedIcon
    if not self.ldbs then
        self.ldbs = {}
        local ldb = {
            type = "launcher",
            icon = ldbIcon,
            OnClick = self.ldbOnClick,
            OnTooltipShow = self.ldbOnTooltipShow,
        }
        LDB:NewDataObject(self.AppName, ldb)
        self.ldbs[1] = ldb
    end
    if self.db.profile.extraLaunchers then
        for i = 2, self.db.profile.numBars do
            if not self.ldbs[i] then
                local ldb = {
                    type = "launcher",
                    icon = ldbIcon,
                    OnClick = self.ldbOnClick,
                    OnTooltipShow = self.ldbOnTooltipShow,
                    bzkName = extraLauncherName(i),
                }
                local pdb = self.db.profile.plugins["launcher"][ldb.bzkName]
                if not pdb.pos then
                    pdb.bar = i
                    pdb.pos = 1
                end
                LDB:NewDataObject(ldb.bzkName, ldb)
                self.ldbs[i] = ldb
            elseif forceEnableExtraLaunchers then
                local plugin = self.plugins[self.ldbs[i].bzkName]
                if plugin then
                    plugin.db.enabled = true
                    plugin:applySettings()
                end
            end
        end
    else
        for i = 2, #self.ldbs do
            local ldb = self.ldbs[i]
            local plugin = self.plugins[ldb.bzkName]
            if plugin then
                self:disablePlugin(plugin)
            end
        end
    end
    self:updatePluginOptions()
end

function Bazooka:getDropPlace(x, y)
    local dstBar, dstArea, dstPos
    local minDist = math.huge
    for i = 1, #self.bars do
        local bar = self.bars[i]
        local area, pos, dist = bar:getDropPlace(x, y)
        if dist < minDist then
            dstBar, dstArea, dstPos, minDist = bar, area, pos, dist
        end
    end
    if minDist < NearSquared or getDistance2Frame(x, y, dstBar.frame) < NearSquared then
        return dstBar, dstArea, dstPos
    end
end

function Bazooka:highlight(bar, area, pos)
    if self.hlBar and self.hlBar ~= bar then
        self.hlBar:highlight(nil)
    end
    self.hlBar = bar
    if bar then
        bar:highlight(area, pos)
    end
end

function Bazooka:getInsetForEdgeSize(edgeSize)
    return math.floor(edgeSize / 4)
end

function Bazooka:toggleBar(hiddenFlag, barId, ...)
    if not barId then
        return
    end
    barId = tonumber(barId) or -1
    local bar = self.bars[barId]
    if bar then
        bar:toggleHidden(hiddenFlag)
    end
    self:toggleBar(hiddenFlag, ...)
end

function Bazooka:toggleBars(hiddenFlag, params)
    if not params then
        for i = 1, #self.bars do
            local bar = self.bars[i]
            if bar.db.marked then
                bar:toggleHidden(hiddenFlag)
            end
        end
    else
        self:toggleBar(hiddenFlag, strsplit(' ', params))
    end
end

-- BEGIN LoD Options muckery

function Bazooka:getSubAppName(name)
    return self.AppName .. '.' .. name
end

function Bazooka:setupDummyOptions()
    if self.optionsLoaded then
        return
    end
    self.dummyOpts = CreateFrame("Frame")
    self.dummyOpts:Hide()
    self.dummyOpts.name = AppName
    self.dummyOpts:SetScript("OnShow", function(frame)
        if not self.optionsLoaded then
            if not InterfaceOptionsFrame:IsVisible() then
                return -- wtf... Happens if you open the game map and close it with ESC
            end
            self:openConfigDialog()
        else
            frame:Hide()
        end
    end)
    InterfaceOptions_AddCategory(self.dummyOpts)
end

function Bazooka:loadOptions()
    if not self.optionsLoaded then
        self.optionsLoaded = true
        local loaded, reason = LoadAddOn(OptionsAppName)
        if not loaded then
            print("Failed to load " .. tostring(OptionsAppName) .. ": " .. tostring(reason))
        end
    end
end

function Bazooka:openConfigDialog(opts, ...)
    -- this function will be overwritten by the Options module when loaded
    if not self.optionsLoaded then
        self:loadOptions()
        InterfaceAddOnsList_Update()
        return self:openConfigDialog(opts, ...)
    end
    InterfaceOptionsFrame_OpenToCategory(self.dummyOpts)
end

-- static dialog setup

function Bazooka:openStaticDialog(dialog, frameArg, textArg1, textArg2)
    local dialogFrame = StaticPopup_Show(dialog, textArg1, textArg2)
    if dialogFrame then
        dialogFrame.data = frameArg
    end
end

function Bazooka:closeStaticDialog(dialog)
    StaticPopup_Hide(dialog)
end

StaticPopupDialogs[BzkDialogDisablePlugin] = {
    text = L["Disable %s plugin?"],
    button1 = _G.YES,
    button2 = _G.NO,
    OnAccept = function(frame)
        if not frame.data then
            return
        end
        Bazooka:disablePlugin(frame.data)
        Bazooka:updatePluginOptions()
    end,
    timeout = 0,
    whileDead = 1,
    hideOnEscape = 1,
}

-- END LoD Options muckery

-- Stubs for Bazooka_Options

function Bazooka:updateMainOptions()
end

function Bazooka:updateBarOptions()
end

function Bazooka:updatePluginOptions()
end

-- register slash command

SLASH_BAZOOKA1 = "/bazooka"
SlashCmdList["BAZOOKA"] = function(msg)
    msg = strtrim(msg or "")
    local cmd, params = strsplit(' ', msg, 2)
    if cmd == "locked" then
        Bazooka:toggleLocked()
    elseif cmd == "hidebars" then
        Bazooka:toggleBars(true, params)
    elseif cmd == "showbars" then
        Bazooka:toggleBars(false, params)
    elseif cmd == "togglebars" then
        Bazooka:toggleBars(nil, params)
    else
        Bazooka:openConfigDialog()
    end
end

-- CONFIGMODE

CONFIGMODE_CALLBACKS = CONFIGMODE_CALLBACKS or {}
CONFIGMODE_CALLBACKS[AppName] = function(action)
    if action == "ON" then
         Bazooka:toggleLocked(false)
    elseif action == "OFF" then
         Bazooka:toggleLocked(true)
    end
end

-- Create our TopAnchor and BottomAnchor so that integrators can use them as soon as we are loaded
Bazooka:initAnchors()

--[[ Anchor test
local topFrame = CreateFrame("Frame")
topFrame:SetPoint("TOPLEFT", Bazooka.TopAnchor, "BOTTOMLEFT")
topFrame:SetPoint("TOPRIGHT", Bazooka.TopAnchor, "BOTTOMRIGHT")
topFrame:SetHeight(20)
local tft = topFrame:CreateTexture()
tft:SetAllPoints()
tft:SetTexture(.8, 0.2, 0.2, 0.5)

local bottomFrame = CreateFrame("Frame")
bottomFrame:SetPoint("BOTTOMLEFT", Bazooka.BottomAnchor, "TOPLEFT")
bottomFrame:SetPoint("BOTTOMRIGHT", Bazooka.BottomAnchor, "TOPRIGHT")
bottomFrame:SetHeight(20)
local bft = bottomFrame:CreateTexture()
bft:SetAllPoints()
bft:SetTexture(.8, 0.4, 0.2, 0.5)
--]]