flickerstreak@1: 
flickerstreak@1: -- private constants
flickerstreak@1: local insideFrame  = 1
flickerstreak@1: local outsideFrame = 2
flickerstreak@1: 
flickerstreak@1: local pointFindTable = {
flickerstreak@1:   BOTTOMLEFT  = function(f) return f:GetLeft(),  f:GetBottom() end,
flickerstreak@1:   BOTTOM      = function(f) return nil,          f:GetBottom() end,
flickerstreak@1:   BOTTOMRIGHT = function(f) return f:GetRight(), f:GetBottom() end,
flickerstreak@1:   RIGHT       = function(f) return f:GetRight(), nil end,
flickerstreak@1:   TOPRIGHT    = function(f) return f:GetRight(), f:GetTop() end,
flickerstreak@1:   TOP         = function(f) return nil,          f:GetTop() end,
flickerstreak@1:   TOPLEFT     = function(f) return f:GetLeft(),  f:GetTop() end,
flickerstreak@1:   LEFT        = function(f) return f:GetLeft(),  nil end,
flickerstreak@1: }
flickerstreak@1: 
flickerstreak@1: local oppositePointTable = {
flickerstreak@1:   BOTTOMLEFT  = "TOPRIGHT",
flickerstreak@1:   BOTTOM      = "TOP",
flickerstreak@1:   BOTTOMRIGHT = "TOPLEFT",
flickerstreak@1:   RIGHT       = "LEFT",
flickerstreak@1:   TOPRIGHT    = "BOTTOMLEFT",
flickerstreak@1:   TOP         = "BOTTOM",
flickerstreak@1:   TOPLEFT     = "BOTTOMRIGHT",
flickerstreak@1:   LEFT        = "RIGHT"
flickerstreak@1: }
flickerstreak@1: 
flickerstreak@2: local anchoredLabelColor = { r =0.6, g = 0.2, b = 1.0 }
flickerstreak@2: local nonAnchoredLabelColor = { r = 1.0, g = 0.82, b = 0.0 }
flickerstreak@2: 
flickerstreak@1: -- private variables
flickerstreak@1: local stickyTargets = {
flickerstreak@1:   [UIParent] = insideFrame,
flickerstreak@1:   [WorldFrame] = insideFrame
flickerstreak@1: }
flickerstreak@1: 
flickerstreak@1: -- ReBar is an Ace 2 class prototype object.
flickerstreak@1: ReBar = AceLibrary("AceOO-2.0").Class("AceEvent-2.0")
flickerstreak@1: 
flickerstreak@1: local dewdrop = AceLibrary("Dewdrop-2.0")
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:init( config, id )
flickerstreak@1:   ReBar.super.prototype.init(self)
flickerstreak@1: 
flickerstreak@2:   local buttonClass = config and config.btnConfig and config.btnConfig.type and getglobal(config.btnConfig.type)
flickerstreak@1:   self.config  = config
flickerstreak@1:   self.barID   = id
flickerstreak@1:   self.class   = { button = buttonClass }
flickerstreak@1:   self.buttons = { }
flickerstreak@1: 
flickerstreak@1:   -- create the bar and control widgets
flickerstreak@1:   self.barFrame     = CreateFrame("Frame", "ReBar_"..self.barID, UIParent, "ReBarTemplate")
flickerstreak@2:   self.controlFrame = getglobal(self.barFrame:GetName().."Controls")
flickerstreak@1:   self.controlFrame.reBar = self
flickerstreak@2:   self.barFrame:SetClampedToScreen(true)
flickerstreak@1: 
flickerstreak@1:   -- set the text label on the control widget
flickerstreak@2:   self.labelString = getglobal(self.controlFrame:GetName().."LabelString")
flickerstreak@2:   self.labelString:SetText(id)
flickerstreak@1: 
flickerstreak@1:   -- initialize the bar layout
flickerstreak@1:   self:ApplySize()
flickerstreak@1:   self:ApplyAnchor()
flickerstreak@1:   self:LayoutButtons()
flickerstreak@1:   self:ApplyVisibility()
flickerstreak@1: 
flickerstreak@1:   -- add bar to stickyTargets list
flickerstreak@1:   stickyTargets[self.barFrame] = outsideFrame
flickerstreak@1:   
flickerstreak@1:   -- initialize dewdrop menu
flickerstreak@1: 	dewdrop:Register(self.controlFrame, 'children', function()
flickerstreak@1: 	    dewdrop:FeedAceOptionsTable(ReActionGlobalMenuOptions)
flickerstreak@1: 	    dewdrop:FeedAceOptionsTable(GenerateReActionBarOptions(self))
flickerstreak@1: 	    dewdrop:FeedAceOptionsTable(GenerateReActionButtonOptions(self))
flickerstreak@1: 	  end,
flickerstreak@1: 	  'cursorX', true, 
flickerstreak@1: 	  'cursorY', true
flickerstreak@1: 	)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:Destroy()
flickerstreak@1:   if self.barFrame == dewdrop:GetOpenedParent() then
flickerstreak@1:     dewdrop:Close()
flickerstreak@1:     dewdrop:Unregister(self.barFrame)
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@2:   self:HideControls()
flickerstreak@1:   self.barFrame:Hide()
flickerstreak@1:   self.barFrame:ClearAllPoints()
flickerstreak@1:   self.barFrame:SetParent(nil)
flickerstreak@2:   self.barFrame:SetPoint("BOTTOMRIGHT", UIParent, "TOPLEFT", 0, 0)
flickerstreak@1:   
flickerstreak@1:   -- need to keep around self.config for dewdrop menus in the process of deleting self 
flickerstreak@1: 
flickerstreak@1:   while #self.buttons > 0 do
flickerstreak@1:     self.class.button:release(table.remove(self.buttons))
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   -- remove from sticky targets table
flickerstreak@1:   stickyTargets[self.barFrame] = nil
flickerstreak@1:   
flickerstreak@1:   -- remove from global table
flickerstreak@1:   -- for some reason after a destroy/recreate the globals still reference
flickerstreak@1:   -- the old frames
flickerstreak@1:   setglobal(self.barFrame:GetName(), nil)
flickerstreak@1:   setglobal(self.barFrame:GetName().."Controls", nil)
flickerstreak@1:   setglobal(self.controlFrame:GetName().."LabelString", nil)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- show/hide the control frame
flickerstreak@1: function ReBar.prototype:ShowControls()
flickerstreak@1:   self.controlFrame:Show()
flickerstreak@2:   for _, b in ipairs(self.buttons) do
flickerstreak@2:     b:BarUnlocked()
flickerstreak@2:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:HideControls()
flickerstreak@1:   local b = self.barFrame
flickerstreak@1:   if b.isMoving or b.resizing then
flickerstreak@1:     b:StopMovingOrSizing()
flickerstreak@1:     b:SetScript("OnUpdate",nil)
flickerstreak@1:   end
flickerstreak@1:   -- close any dewdrop menu owned by us
flickerstreak@1:   if self.barFrame == dewdrop:GetOpenedParent() then
flickerstreak@1:     dewdrop:Close()
flickerstreak@1:   end
flickerstreak@2:   for _, b in ipairs(self.buttons) do
flickerstreak@2:     b:BarLocked()
flickerstreak@2:   end
flickerstreak@1:   self.controlFrame:Hide()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- accessors
flickerstreak@1: function ReBar.prototype:GetVisibility()
flickerstreak@1:   return self.config.visible
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ToggleVisibility()
flickerstreak@1:   self.config.visible = not self.config.visible
flickerstreak@1:   self:ApplyVisibility()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:GetOpacity()
flickerstreak@1:   return self.config.opacity or 100
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:SetOpacity( o )
flickerstreak@1:   self.config.opacity = tonumber(o)
flickerstreak@1:   self:ApplyVisibility()
flickerstreak@1:   return self.config.opacity
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- layout methods
flickerstreak@1: function ReBar.prototype:ApplySize()
flickerstreak@1:   local buttonSz = self.config.size or 36
flickerstreak@1:   local spacing  = self.config.spacing or 4
flickerstreak@1:   local rows     = self.config.rows or 1
flickerstreak@1:   local columns  = self.config.columns or 12
flickerstreak@1:   local w = buttonSz * columns + spacing * (columns + 1)
flickerstreak@1:   local h = buttonSz * rows + spacing * (rows + 1)
flickerstreak@1:   local f = self.barFrame
flickerstreak@1: 
flickerstreak@1:   -- +1: avoid resizing oddities caused by fractional UI scale setting
flickerstreak@1:   f:SetMinResize(buttonSz + spacing*2 + 1, buttonSz + spacing*2 + 1)
flickerstreak@1:   f:SetWidth(w + 1)
flickerstreak@1:   f:SetHeight(h + 1)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ApplyAnchor()
flickerstreak@1:   local a = self.config.anchor
flickerstreak@1:   local f = self.barFrame
flickerstreak@2:   if a then
flickerstreak@2:     f:ClearAllPoints()
flickerstreak@2:     f:SetPoint(a.point,getglobal(a.to),a.relPoint,a.x,a.y)
flickerstreak@2:     local color = anchoredLabelColor
flickerstreak@2:     if a.to == "UIParent" or a.to == "WorldFrame" then
flickerstreak@2:       color = nonAnchoredLabelColor
flickerstreak@2:     end
flickerstreak@2:     self.labelString:SetTextColor(color.r, color.g, color.b)
flickerstreak@2:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ApplyVisibility()
flickerstreak@1:   local v = self.config.visibility
flickerstreak@1:   if type(v) == "table" then
flickerstreak@1:     if v.class then
flickerstreak@1:       local _, c = UnitClass("player")
flickerstreak@1:       v = v.class[c]
flickerstreak@1:     end
flickerstreak@1:   elseif type(v) == "string" then
flickerstreak@1:     local value = getglobal(v)
flickerstreak@1:     v = value
flickerstreak@1:   end
flickerstreak@1:   
flickerstreak@1:   if self.config.opacity then
flickerstreak@1:     self.barFrame:SetAlpha(self.config.opacity / 100)
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   if v then
flickerstreak@1:     self.barFrame:Show()
flickerstreak@1:   else
flickerstreak@1:     self.barFrame:Hide()
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:LayoutButtons()
flickerstreak@1:   local r = self.config.rows
flickerstreak@1:   local c = self.config.columns
flickerstreak@1:   local n = r * c
flickerstreak@1:   local sp = self.config.spacing
flickerstreak@1:   local sz = self.config.size
flickerstreak@1:   local gSize = sp + sz
flickerstreak@1:   
flickerstreak@1:   for i = 1, n do
flickerstreak@1:     if self.buttons[i] == nil then
flickerstreak@1:       table.insert(self.buttons, self.class.button:acquire(self.barFrame, self.config.btnConfig, i))
flickerstreak@1:     end
flickerstreak@1:     local b = self.buttons[i]
flickerstreak@1:     if b == nil then
flickerstreak@1:       break -- handling for button types that support limited numbers
flickerstreak@1:     end
flickerstreak@1:     b:PlaceButton("TOPLEFT", sp + gSize * math.fmod(i-1,c), - (sp + gSize * math.floor((i-1)/c)), sz)
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   -- b == nil, above, should always be the case if and only if i == n. ReBar never monkeys
flickerstreak@1:   -- with buttons in the middle of the sequence: it always adds or removes on the array end
flickerstreak@1:   while #self.buttons > n do
flickerstreak@1:     self.class.button:release(table.remove(self.buttons))
flickerstreak@1:   end
flickerstreak@1:   
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:StoreAnchor(f, p, rp, x, y)
flickerstreak@1:   local name = f:GetName()
flickerstreak@1:   -- no point if we can't store the name or the offsets are incomplete
flickerstreak@1:   if name and x and y then
flickerstreak@1:     self.config.anchor = { 
flickerstreak@1:       to = name,
flickerstreak@1:       point = p,
flickerstreak@1:       relPoint = rp or p,
flickerstreak@1:       x = x,
flickerstreak@1:       y = y
flickerstreak@1:     }
flickerstreak@1:   end
flickerstreak@1: end  
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- mouse event handlers (clicking/dragging/resizing the bar)
flickerstreak@1: function ReBar.prototype:BeginDrag()
flickerstreak@1:   local f = self.barFrame
flickerstreak@1:   f:StartMoving()
flickerstreak@1:   f.isMoving = true
flickerstreak@1:   f:SetScript("OnUpdate", function() self:StickyIndicatorUpdate() end)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:FinishDrag()
flickerstreak@1:   local f, p, rp, x, y 
flickerstreak@1:   local bf = self.barFrame
flickerstreak@1: 
flickerstreak@1:   bf:StopMovingOrSizing()
flickerstreak@1:   bf.isMoving = false
flickerstreak@1: 
flickerstreak@1:   bf:SetScript("OnUpdate",nil)
flickerstreak@1:   if IsShiftKeyDown() then
flickerstreak@1:     f, p, rp, x, y = self:GetStickyAnchor()
flickerstreak@1:     ReBarStickyIndicator1:Hide()
flickerstreak@1:     ReBarStickyIndicator2:Hide()
flickerstreak@1:   end
flickerstreak@1:   
flickerstreak@1:   if f == nil then
flickerstreak@1:     f = UIParent
flickerstreak@1:     local _
flickerstreak@1:     _, p,rp,x,y = self:GetClosestPointTo(f)
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   if f then
flickerstreak@1:     self:StoreAnchor(f,p,rp,x,y)
flickerstreak@1:     self:ApplyAnchor()
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:BeginBarResize( sizingPoint )
flickerstreak@1:   local f = self.barFrame
flickerstreak@1:   f:StartSizing(sizingPoint)
flickerstreak@1:   f.resizing = true
flickerstreak@1:   f:SetScript("OnUpdate",function() self:ReflowButtons() end)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:BeginButtonResize( sizingPoint, mouseBtn )
flickerstreak@1:   local f = self.barFrame
flickerstreak@1:   f:StartSizing(sizingPoint)
flickerstreak@1:   f.resizing = true
flickerstreak@1:   local r = self.config.rows
flickerstreak@1:   local c = self.config.columns
flickerstreak@1:   local s = self.config.spacing
flickerstreak@1:   local sz = self.config.size
flickerstreak@1:   if mouseBtn == "LeftButton" then
flickerstreak@1:     f:SetMinResize(c*(12 + 2*s) +1, r*(12 + 2*s) +1)
flickerstreak@1:     f:SetScript("OnUpdate",function() self:DragSizeButtons() end)
flickerstreak@1:   elseif mouseBtn == "RightButton" then
flickerstreak@1:     f:SetMinResize(c*sz+1, r*sz+1)
flickerstreak@1:     f:SetScript("OnUpdate",function() self:DragSizeSpacing() end)
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:FinishResize()
flickerstreak@1:   local f = self.barFrame
flickerstreak@1:   f:StopMovingOrSizing()
flickerstreak@1:   f.resizing = false
flickerstreak@1:   f:SetScript("OnUpdate",nil)
flickerstreak@1:   self:ApplySize()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- sticky anchoring functions
flickerstreak@1: function ReBar.prototype:StickyIndicatorUpdate()
flickerstreak@1:   local si1 = ReBarStickyIndicator1
flickerstreak@1:   local si2 = ReBarStickyIndicator2
flickerstreak@1:   if IsShiftKeyDown() then
flickerstreak@1:     local f, p, rp, x, y = self:GetStickyAnchor()
flickerstreak@1:     if f then
flickerstreak@1:       si1:ClearAllPoints()
flickerstreak@1:       si2:ClearAllPoints()
flickerstreak@1:       si1:SetPoint("CENTER",self.barFrame,p,0,0)
flickerstreak@1:       si2:SetPoint("CENTER",f,rp,x,y)
flickerstreak@1:       si1:Show()
flickerstreak@1:       si2:Show()
flickerstreak@1:       return nil
flickerstreak@1:     end
flickerstreak@1:   end
flickerstreak@1:   si1:Hide()
flickerstreak@1:   si2:Hide()
flickerstreak@1:   si1:ClearAllPoints()
flickerstreak@1:   si2:ClearAllPoints()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:CheckAnchorable(f)
flickerstreak@1:   -- can't anchor to self or to a hidden frame
flickerstreak@1:   if f == self.barFrame or not(f:IsShown()) then return false end
flickerstreak@1: 
flickerstreak@1:   -- also can't anchor to frames that are anchored to self
flickerstreak@1:   for i = 1, f:GetNumPoints() do
flickerstreak@1:     local _, f2 = f:GetPoint(i)
flickerstreak@1:     if f2 == self.barFrame then return false end
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   return true
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:GetStickyAnchor()
flickerstreak@1:   local snapRange = (self.config.size + self.config.spacing)
flickerstreak@1:   local r2, f, p, rp, x, y = self:GetClosestAnchor()
flickerstreak@1: 
flickerstreak@1:   if f and p then
flickerstreak@1:     local xx, yy = pointFindTable[p](f) 
flickerstreak@1:     if r2 and r2 < (snapRange*snapRange) then
flickerstreak@1:       if xx or math.abs(x) < snapRange then x = 0 end
flickerstreak@1:       if yy or math.abs(y) < snapRange then y = 0 end
flickerstreak@1:     elseif not(yy) and math.abs(x) < snapRange then
flickerstreak@1:       x = 0
flickerstreak@1:     elseif not(xx) and math.abs(y) < snapRange then
flickerstreak@1:       y = 0
flickerstreak@1:     else
flickerstreak@1:       f = nil -- nothing in range
flickerstreak@1:     end
flickerstreak@1:   end
flickerstreak@1:   return f, p, rp, x, y
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:GetClosestAnchor()
flickerstreak@1:   -- choose the closest anchor point on the list of target frames
flickerstreak@1:   local range2, frame, point, relPoint, offsetX, offsetY
flickerstreak@1: 
flickerstreak@1:   for f, tgtRegion in pairs(stickyTargets) do
flickerstreak@1:     if self:CheckAnchorable(f) then
flickerstreak@1:       local r2 ,p, rp, x, y = self:GetClosestPointTo(f,tgtRegion)
flickerstreak@1:       if r2 then
flickerstreak@1:         if not(range2 and range2 < r2) then
flickerstreak@1:           range2, frame, point, relPoint, offsetX, offsetY = r2, f, p, rp, x, y
flickerstreak@1:         end
flickerstreak@1:       end
flickerstreak@1:     end
flickerstreak@1:   end
flickerstreak@1: 
flickerstreak@1:   return range2, frame, point, relPoint, offsetX, offsetY
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:GetClosestPointTo(f,inside)
flickerstreak@1:   local range2, point, relPoint, offsetX, offsetY
flickerstreak@1:   local pft = pointFindTable
flickerstreak@1:   local cx, cy = self.barFrame:GetCenter()
flickerstreak@1:   local fcx, fcy = f:GetCenter()
flickerstreak@1:   local fh = f:GetHeight()
flickerstreak@1:   local fw = f:GetWidth()
flickerstreak@1: 
flickerstreak@1:   -- compute whether edge bisector intersects target edge
flickerstreak@1:   local dcx = math.abs(cx-fcx) < fw/2 and (cx-fcx)
flickerstreak@1:   local dcy = math.abs(cy-fcy) < fh/2 and (cy-fcy)
flickerstreak@1:   
flickerstreak@1:   for p, func in pairs(pft) do
flickerstreak@1:     local rp, x, y
flickerstreak@1:     if inside == outsideFrame then
flickerstreak@1:       rp = oppositePointTable[p]
flickerstreak@1:       x, y = self:GetOffsetToPoint(f, func, pft[rp])
flickerstreak@1:     else
flickerstreak@1:       rp = p
flickerstreak@1:       x, y = self:GetOffsetToPoint(f, func, func)
flickerstreak@1:     end
flickerstreak@1: 
flickerstreak@1:     -- if anchoring to an edge, only anchor if the center point overlaps the other edge
flickerstreak@1:     if (x or dcx) and (y or dcy) then
flickerstreak@1:       local r2 = (x or 0)^2 + (y or 0)^2
flickerstreak@1:       if range2 == nil or r2 < range2 then
flickerstreak@1:         range2, point, relPoint, offsetX, offsetY = r2, p, rp, x or dcx, y or dcy
flickerstreak@1:       end
flickerstreak@1:     end
flickerstreak@1:   end
flickerstreak@1:   return range2, point, relPoint, offsetX, offsetY
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:GetOffsetToPoint(f,func,ffunc)
flickerstreak@1:   local x, y = func(self.barFrame)  -- coordinates of the point on this frame
flickerstreak@1:   local fx, fy = ffunc(f)  -- coordinates of the point on the target frame
flickerstreak@1:   -- guarantees: if x then fx, if y then fy
flickerstreak@1:   return x and (x-fx), y and (y-fy)
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- utility function to get the height, width, and button size attributes
flickerstreak@1: function ReBar.prototype:GetLayout()
flickerstreak@1:   local c = self.config
flickerstreak@1:   local f = self.barFrame
flickerstreak@1:   return f:GetWidth(), f:GetHeight(), c.size, c.rows, c.columns, c.spacing
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: -- add and remove buttons dynamically as the bar is resized
flickerstreak@1: function ReBar.prototype:ReflowButtons()
flickerstreak@1:   local w, h, sz, r, c, sp = self:GetLayout()
flickerstreak@1: 
flickerstreak@1:   self.config.rows = math.floor( (h - sp) / (sz + sp) )
flickerstreak@1:   self.config.columns = math.floor( (w - sp) / (sz + sp) )
flickerstreak@1: 
flickerstreak@1:   if self.config.rows ~= r or self.config.columns ~= c then
flickerstreak@1:     self:LayoutButtons()
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- change the size of buttons as the bar is resized
flickerstreak@1: function ReBar.prototype:DragSizeButtons()
flickerstreak@1:   local w, h, sz, r, c, sp = self:GetLayout()
flickerstreak@1: 
flickerstreak@1:   local newSzW = math.floor((w - (c+1)*sp)/c)
flickerstreak@1:   local newSzH = math.floor((h - (r+1)*sp)/r)
flickerstreak@1:   
flickerstreak@1:   self.config.size = math.max(12, math.min(newSzW, newSzH))
flickerstreak@1: 
flickerstreak@1:   if self.config.size ~= sz then
flickerstreak@1:     self:LayoutButtons()
flickerstreak@1:     self:UpdateResizeTooltip()
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- change the spacing of buttons as the bar is resized
flickerstreak@1: function ReBar.prototype:DragSizeSpacing()
flickerstreak@1:   local w, h, sz, r, c, sp = self:GetLayout()
flickerstreak@1: 
flickerstreak@1:   local newSpW = math.floor((w - c*sz)/(c+1))
flickerstreak@1:   local newSpH = math.floor((h - r*sz)/(r+1))
flickerstreak@1: 
flickerstreak@1:   self.config.spacing = math.max(0, math.min(newSpW, newSpH))
flickerstreak@1: 
flickerstreak@1:   if self.config.spacing ~= sp then
flickerstreak@1:     self:LayoutButtons()
flickerstreak@1:     self:UpdateResizeTooltip()
flickerstreak@1:   end
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: 
flickerstreak@1: -- update the drag tooltip to indicate current sizes
flickerstreak@1: function ReBar.prototype:UpdateResizeTooltip()
flickerstreak@1:   GameTooltipTextRight4:SetText(self.config.size)
flickerstreak@1:   GameTooltipTextRight5:SetText(self.config.spacing)
flickerstreak@1:   GameTooltip:Show()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ShowTooltip()
flickerstreak@1:   GameTooltip:SetOwner(self.barFrame, "ANCHOR_TOPRIGHT")
flickerstreak@1:   GameTooltip:AddLine("Bar "..self.barID)
flickerstreak@1:   GameTooltip:AddLine("Drag to move")
flickerstreak@1:   GameTooltip:AddLine("Shift-drag for sticky mode")
flickerstreak@1:   GameTooltip:AddLine("Right-click for options")
flickerstreak@1:   GameTooltip:Show()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ShowButtonResizeTooltip(point)
flickerstreak@1:   GameTooltip:SetOwner(self.barFrame, "ANCHOR_"..point)
flickerstreak@1:   GameTooltip:AddLine("Drag to resize buttons")
flickerstreak@1:   GameTooltip:AddLine("Right-click-drag")
flickerstreak@1:   GameTooltip:AddLine("to change spacing")
flickerstreak@1:   GameTooltip:AddDoubleLine("Size: ", "0")
flickerstreak@1:   GameTooltip:AddDoubleLine("Spacing: ", "0")
flickerstreak@1:   self:UpdateResizeTooltip()
flickerstreak@1: end
flickerstreak@1: 
flickerstreak@1: function ReBar.prototype:ShowBarResizeTooltip(point)
flickerstreak@1:   GameTooltip:SetOwner(self.barFrame, "ANCHOR_"..point)
flickerstreak@1:   GameTooltip:AddLine("Drag to add/remove buttons")
flickerstreak@1:   GameTooltip:Show()
flickerstreak@1: end