From 47bb7513414de94ecfbd9425d8ac45b07d60870e Mon Sep 17 00:00:00 2001
From: shagu <ericmauser@googlemail.com>
Date: Sat, 10 Dec 2016 15:00:10 +0100
Subject: [PATCH] pixelperfect: enable native scaling (disabled)

---
 modules/config.lua       |  1 +
 modules/gui.lua          |  1 +
 modules/pixelperfect.lua | 15 +++++++++++++++
 pfUI.toc                 |  1 +
 4 files changed, 18 insertions(+)
 create mode 100644 modules/pixelperfect.lua

diff --git a/modules/config.lua b/modules/config.lua
index 0dff8882..9fb4f489 100644
--- a/modules/config.lua
+++ b/modules/config.lua
@@ -3,6 +3,7 @@ pfUI_config = {}
 
 function pfUI:LoadConfig()
   --                MODULE        SUBGROUP   ENTRY               VALUE
+  pfUI:UpdateConfig("global",     nil,       "pixelperfect",     "0")
   pfUI:UpdateConfig("global",     nil,       "font_size",        "12")
   pfUI:UpdateConfig("global",     nil,       "font_default",     "arial")
   pfUI:UpdateConfig("global",     nil,       "font_square",      "homespun")
diff --git a/modules/gui.lua b/modules/gui.lua
index c8511be7..b775564d 100644
--- a/modules/gui.lua
+++ b/modules/gui.lua
@@ -602,6 +602,7 @@ pfUI:RegisterModule("gui", function ()
   -- global
   pfUI.gui.global = pfUI.gui:CreateConfigTab("Global Settings")
   local values = { "arial", "homespun", "diediedie" }
+  pfUI.gui:CreateConfig(pfUI.gui.global, "Use Pixelperfect (native resolution) scaling", pfUI_config.global, "pixelperfect", "checkbox")
   pfUI.gui:CreateConfig(pfUI.gui.global, "Fontsize", pfUI_config.global, "font_size")
   pfUI.gui:CreateConfig(pfUI.gui.global, "Default Font", pfUI_config.global, "font_default", "dropdown", values)
   pfUI.gui:CreateConfig(pfUI.gui.global, "Square Font", pfUI_config.global, "font_square", "dropdown", values)
diff --git a/modules/pixelperfect.lua b/modules/pixelperfect.lua
new file mode 100644
index 00000000..5ea50da9
--- /dev/null
+++ b/modules/pixelperfect.lua
@@ -0,0 +1,15 @@
+pfUI:RegisterModule("pixelperfect", function ()
+  if pfUI_config.global.pixelperfect == "1" then
+    local resolution = GetCVar("gxResolution")
+    for screenwidth, screenheight in string.gfind(resolution, "(.+)x(.+)") do
+      local scale = (min(2, max(.64, 768/screenheight)))
+      SetCVar("UseUIScale", 1)
+      SetCVar("UIScale", scale)
+
+      -- scale UIParent to native screensize
+      UIParent:SetWidth(screenwidth)
+      UIParent:SetHeight(screenheight)
+      UIParent:SetPoint("CENTER",0,0)
+    end
+  end
+end)
diff --git a/pfUI.toc b/pfUI.toc
index 5ccc545f..22c9e98e 100644
--- a/pfUI.toc
+++ b/pfUI.toc
@@ -25,6 +25,7 @@ env\hacks.lua
 # modules
 modules\config.lua
 modules\gui.lua
+modules\pixelperfect.lua
 modules\actionbar.lua
 modules\chat.lua
 modules\font.lua