[Input]: Update multiline text when the region is scrolled on the nex…

…t frame to account for transformation changes.

[Slab Debug]: Multiline option to use lua highlighting on loaded file.

Internal/UI/Input.lua

@@ -819,6 +819,7 @@ local function GetInstance(Id)
 	Instance.Lines = nil
 	Instance.TextObject = nil
 	Instance.Highlight = nil
+	Instance.ShouldUpdateTextObject = false
 	table.insert(Instances, Instance)
 	return Instance
 end
@@ -920,7 +921,8 @@ function Input.Begin(Id, Options)
 		ContentW, ContentH = Text.GetSizeWrap(Instance.Text, Options.MultiLineW)
 	end
 
-	local ShouldUpdateTextObject = false
+	local ShouldUpdateTextObject = Instance.ShouldUpdateTextObject
+	Instance.ShouldUpdateTextObject = false
 
 	if Instance.Lines == nil and Instance.Text ~= "" then
 		if Options.MultiLine then
@@ -952,6 +954,11 @@ function Input.Begin(Id, Options)
 				end
 			end
 		end
+	else
+		if Instance.Highlight ~= nil then
+			Instance.Highlight = nil
+			ShouldUpdateTextObject = true
+		end
 	end
 
 	if ShouldUpdateTextObject then
@@ -1185,7 +1192,7 @@ function Input.Begin(Id, Options)
 		local WheelX, WheelY = Region.GetWheelDelta()
 
 		if DeltaY ~= 0.0 or WheelY ~= 0.0 then
-			UpdateTextObject(Instance, Options.MultiLineW, Instance.Align, Options.Highlight, Options.TextColor)
+			Instance.ShouldUpdateTextObject = true
 		end
 	end
 

SlabDebug.lua

@@ -449,6 +449,32 @@ function SlabDebug.Input()
 	Slab.EndWindow()
 end
 
+local SlabDebug_MultiLine_Highlight = {
+	['function'] = {1, 0, 0, 1},
+	['end'] = {1, 0, 0, 1},
+	['if'] = {1, 0, 0, 1},
+	['then'] = {1, 0, 0, 1},
+	['local'] = {1, 0, 0, 1},
+	['for'] = {1, 0, 0, 1},
+	['do'] = {1, 0, 0, 1},
+	['not'] = {1, 0, 0, 1},
+	['while'] = {1, 0, 0, 1},
+	['repeat'] = {1, 0, 0, 1},
+	['until'] = {1, 0, 0, 1},
+	['break'] = {1, 0, 0, 1},
+	['else'] = {1, 0, 0, 1},
+	['elseif'] = {1, 0, 0, 1},
+	['in'] = {1, 0, 0, 1},
+	['and'] = {1, 0, 0, 1},
+	['or'] = {1, 0, 0, 1},
+	['true'] = {1, 0, 0, 1},
+	['false'] = {1, 0, 0, 1},
+	['nil'] = {1, 0, 0, 1},
+	['return'] = {1, 0, 0, 1}
+}
+
+local SlabDebug_MultiLine_ShouldHighlight = true
+
 function SlabDebug.MultiLine()
 	Slab.BeginWindow('SlabDebug_MultiLine', {Title = "Multi-Line Input"})
 
@@ -467,11 +493,22 @@ function SlabDebug.MultiLine()
 		end
 	end
 
+	Slab.SameLine()
+	if Slab.CheckBox(SlabDebug_MultiLine_ShouldHighlight, "Use Lua Highlight") then
+		SlabDebug_MultiLine_ShouldHighlight = not SlabDebug_MultiLine_ShouldHighlight
+	end
+
 	Slab.Separator()
 
 	Slab.Text("File: " .. SlabDebug_MultiLine_FileName)
 
-	if Slab.Input('SlabDebug_MultiLine', {MultiLine = true, Text = SlabDebug_MultiLine_Contents, W = 500.0, H = 500.0}) then
+	if Slab.Input('SlabDebug_MultiLine', {
+		MultiLine = true,
+		Text = SlabDebug_MultiLine_Contents,
+		W = 500.0,
+		H = 500.0,
+		Highlight = SlabDebug_MultiLine_ShouldHighlight and SlabDebug_MultiLine_Highlight or nil
+	}) then
 		SlabDebug_MultiLine_Contents = Slab.GetInputText()
 	end