From bed2ede94cb7359d36556fd99d9b791412584721 Mon Sep 17 00:00:00 2001
From: FajsiEx <fajsiexofficial@gmail.com>
Date: Mon, 22 Nov 2021 20:39:56 +0100
Subject: [PATCH] + letterboxing to filterwheel

---
 scripts/songselect/filterwheel.lua | 72 +++++++++++++++++++++---------
 1 file changed, 52 insertions(+), 20 deletions(-)

diff --git a/scripts/songselect/filterwheel.lua b/scripts/songselect/filterwheel.lua
index 01db50c..d451a91 100644
--- a/scripts/songselect/filterwheel.lua
+++ b/scripts/songselect/filterwheel.lua
@@ -3,6 +3,8 @@ local Easing = require('common.easings');
 local SongSelectHeader = require('components.headers.songSelectHeader')
 local Footer = require('components.footer');
 
+local backgroundImage = gfx.CreateSkinImage("bg_pattern.png", gfx.IMAGE_REPEATX | gfx.IMAGE_REPEATY)
+
 local defaultFolderBgImage = gfx.CreateSkinImage('song_select/filter_wheel/bg.png', 0)
 local collectionFolderBgImage = gfx.CreateSkinImage('song_select/filter_wheel/col_bg.png', 0)
 local subFolderBgImage = gfx.CreateSkinImage('song_select/filter_wheel/sub_bg.png', 0)
@@ -107,6 +109,24 @@ local transitionLeaveScale = 1;
 local transitionLeaveReappearTimer = 0;
 local TRANSITION_LEAVE_DURATION = 0.1;
 
+-- Window variables
+local resX, resY
+
+-- Aspect Ratios
+local landscapeWidescreenRatio = 16 / 9
+local landscapeStandardRatio = 4 / 3
+local portraitWidescreenRatio = 9 / 16
+
+-- Portrait sizes
+local fullX, fullY
+
+local resolutionChange = function(x, y)
+    resX = x
+    resY = y
+    fullX = portraitWidescreenRatio * y
+    fullY = y
+end
+
 function resetLayoutInformation()
     resx, resy = game.GetResolution()
     scale = resx / desw
@@ -261,7 +281,7 @@ end
 
 function drawScrollbar()
     if not isFilterWheelActive or transitionLeaveScale ~= 0 then return end
-    
+
     gfx.BeginPath()
     local bgW = 13*0.85;
     local bgH = 1282*0.85;
@@ -323,34 +343,23 @@ function tickTransitions(deltaTime)
     end
 end
 
-function drawFilterWheel(deltatime)
-    gfx.ResetTransform()
-    resetLayoutInformation()
+function drawFilterWheelContent(deltatime)
     tickTransitions(deltatime);
-    gfx.Scale(scale, scale);
-
     drawFolderList()
 end
 
-render = function(deltatime, shown)
-    isFilterWheelActive = shown;
-    drawFilterWheel(deltatime)
+local drawFilterWheel = function (x,y,w,h, deltaTime)
+    gfx.Scissor(x,y,w,h);
+    gfx.Translate(x,y);
+    gfx.Scale(w/1080, h/1920);
 
-    if not shown then
-        game.SetSkinSetting('_songWheelOverlayActive', 0);
-    else
-        game.SetSkinSetting('_songWheelOverlayActive', 1);
-    end
-    
-    game.SetSkinSetting('_songWheelActiveFolderLabel', getFolderData(filters.folder[selectedFolder]).label);
-    game.SetSkinSetting('_songWheelActiveSubFolderLabel', getFolderData(filters.level[selectedLevel]).label);
-    
+    drawFilterWheelContent(deltaTime)
     drawCursor()
     drawScrollbar()
     
     if (game.GetSkinSetting('_currentScreen') == 'songwheel') then
-        SongSelectHeader.draw(deltatime);
-        Footer.draw(deltatime);
+        SongSelectHeader.draw(deltaTime);
+        Footer.draw(deltaTime);
     end
 
     if (isFilterWheelActive ~= previousActiveState) then 
@@ -368,6 +377,29 @@ render = function(deltatime, shown)
     --              transitionLeaveScale .. ' // L_TRT: ' .. transitionLeaveReappearTimer, 8, 1870);
 end
 
+render = function(deltaTime, shown)
+    isFilterWheelActive = shown;
+
+    if not shown then
+        game.SetSkinSetting('_songWheelOverlayActive', 0);
+    else
+        game.SetSkinSetting('_songWheelOverlayActive', 1);
+    end
+    
+    game.SetSkinSetting('_songWheelActiveFolderLabel', getFolderData(filters.folder[selectedFolder]).label);
+    game.SetSkinSetting('_songWheelActiveSubFolderLabel', getFolderData(filters.level[selectedLevel]).label);
+
+    -- detect resolution change
+    local resx, resy = game.GetResolution();
+    if resx ~= resX or resy ~= resY then
+        resolutionChange(resx, resy)
+    end
+
+    gfx.GlobalAlpha(1)
+
+    drawFilterWheel((resX - fullX) / 2, 0, fullX, fullY, deltaTime);
+end
+
 set_selection = function(newIndex, isFolder)
     local oldIndex = 1;
     local total = 1;