- user-submitted patch for an 'invert' option in addition to the 'reverse' option for all bars. now 'reverse' controls bar movement direction while 'invert' controls bar fill behavior http://www.wowace.com/addons/ice-hud/tickets/73-reversing-cast-bars-and-channels

IceBarElement.lua

@@ -64,6 +64,7 @@ function IceBarElement.prototype:GetDefaultSettings()
 	settings["side"] = IceCore.Side.Left
 	settings["offset"] = 1
 	settings["scale"] = 1
+	settings["inverse"] = false
 	settings["reverse"] = false
 	settings["barFontSize"] = 12
 	settings["lockUpperTextAlpha"] = true
@@ -166,6 +167,25 @@ function IceBarElement.prototype:GetOptions()
 		order = 32
 	}
 
+	opts["inverse"] = 
+	{
+		type = 'toggle',
+		name = 'Invert bar',
+		desc = 'Filling behaviour of bar',
+		get = function()
+			return self.moduleSettings.inverse
+		end,
+		set = function(value)
+			self.moduleSettings.inverse = value
+			self:SetBarFramePoints()
+			self:Redraw()
+		end,
+		disabled = function()
+			return not self.moduleSettings.enabled
+		end,
+		order = 32
+	}
+
 	opts["reverse"] = 
 	{
 		type = 'toggle',
@@ -545,7 +565,7 @@ end
 
 function IceBarElement.prototype:SetBarFramePoints()
 	self.barFrame:ClearAllPoints()
-	if (self.moduleSettings.reverse) then
+	if (self.moduleSettings.inverse) then
 		self.barFrame:SetPoint("TOPLEFT", self.frame, "TOPLEFT")
 	else
 		self.barFrame:SetPoint("BOTTOMLEFT", self.frame, "BOTTOMLEFT")
@@ -768,11 +788,15 @@ function IceBarElement.prototype:SetScale(scale, force)
 	self.CurrScale = IceHUD:Clamp(self:LerpScale(scale), 0, 1)
 
 	if force or oldScale ~= self.CurrScale then
-		if (self.moduleSettings.reverse) then
+        local scale = self.CurrScale
+        if (self.moduleSettings.reverse) then
+            scale = 1 - scale
+        end
+		if (self.moduleSettings.inverse) then
 			min_y = 0;
-			max_y = self.CurrScale;
+			max_y = scale;
 		else
-			min_y = 1-self.CurrScale;
+			min_y = 1-scale;
 			max_y = 1;
 		end
 		if (self.moduleSettings.side == IceCore.Side.Left) then
@@ -781,7 +805,7 @@ function IceBarElement.prototype:SetScale(scale, force)
 			self.barFrame.bar:SetTexCoord(0, 1, min_y, max_y)
 		end
 
-		self.barFrame:SetHeight(self.settings.barHeight * self.CurrScale)
+		self.barFrame:SetHeight(self.settings.barHeight * scale)
 
 		if self.CurrScale == 0 then
 			self.barFrame.bar:Hide()

IceCastBar.lua

@@ -65,6 +65,7 @@ function IceCastBar.prototype:GetDefaultSettings()
 	settings["displayAuraIcon"] = false
 	settings["auraIconXOffset"] = 40
 	settings["auraIconYOffset"] = 0
+    settings["reverseChannel"] = true
 
 	return settings
 end
@@ -178,6 +179,23 @@ function IceCastBar.prototype:GetOptions()
 		order = 53,
 	}
 
+    opts["reverseChannel"] = {
+        type = 'toggle',
+		name = "Reverse channel direction",
+		desc = "Whether or not to reverse the direction of a channel's castbar",
+		get = function()
+			return self.moduleSettings.reverseChannel
+		end,
+		set = function(v)
+			self.moduleSettings.reverseChannel = v
+		end,
+		disabled = function()
+			return not self.moduleSettings.enabled
+		end,
+		usage = "<whether or not to reverse the direction of a channel's castbar>",
+		order = 32.5,
+    }
+
 	return opts
 end
 
@@ -233,7 +251,7 @@ function IceCastBar.prototype:OnUpdate()
 		local remainingTime = self.actionStartTime + self.actionDuration - time
 		local scale = 1 - (self.actionDuration ~= 0 and remainingTime / self.actionDuration or 0)
 
-		if (self.action == IceCastBar.Actions.Channel) then
+		if (self.moduleSettings.reverseChannel and self.action == IceCastBar.Actions.Channel) then
 			scale = self.actionDuration ~= 0 and remainingTime / self.actionDuration or 0
 		end