From 6e1b451a9c6092c3ca1bb8b8ae9b117c98ed7a27 Mon Sep 17 00:00:00 2001
From: Zachary Hall <catmeow72@proton.me>
Date: Sun, 4 Jun 2023 03:39:28 -0700
Subject: [PATCH] Prepare for moving hue preference code to themes

---
 main.cpp | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/main.cpp b/main.cpp
index 1ea89f4..d05bae4 100644
--- a/main.cpp
+++ b/main.cpp
@@ -29,6 +29,9 @@ using namespace std::numbers;
 static float accent_color = 280.0;
 float GetHue(ImVec4 rgba){
     float r = rgba.x, g = rgba.y, b = rgba.z;
+    if (r == g && g == b) {
+        return -1.0;
+    }
     float hue;
     if ((r >= g) && (g >= b)) {
         hue = 60.0 * (g-b)/(r-b);
@@ -47,11 +50,15 @@ float GetHue(ImVec4 rgba){
     }
     return hue;
 }
-void change_accent_color(ImGuiCol color, float hue) {
-    ImGuiStyle& style = ImGui::GetStyle();
-    ImVec4 in = style.Colors[color];
+void change_accent_color(ImVec4 &color, float hue) {
+    //ImGuiStyle& style = ImGui::GetStyle();
+    //ImVec4 in = style.Colors[color];
+    ImVec4 in = color;
     float Target = hue;
     float Current = GetHue(in);
+    if (Current < 0.0f) {
+        return;
+    }
     float H = 360-Target+Current; // TODO: Figure out why these magic numbers are necessary.
     //printf("Cur: %f, Target: %f, Diff: %f", Current, Target, H);
     float U = cos(H*pi/180.0);
@@ -67,7 +74,7 @@ void change_accent_color(ImGuiCol color, float hue) {
         + (.587-.588*U-1.05*W)*in.y
         + (.114+.886*U-.203*W)*in.z;
     //printf(", Actual: %f\n", GetHue(out));
-    style.Colors[color] = out;
+    color = out;
 }
 
 void UpdateStyle(bool dark) {
@@ -75,7 +82,7 @@ void UpdateStyle(bool dark) {
         ImGui::StyleColorsDark();
     } else {
         ImGui::StyleColorsLight();
-    }
+    }/*
     ImGuiCol colors[] = {
         ImGuiCol_FrameBgHovered,
         ImGuiCol_FrameBgActive,
@@ -106,15 +113,15 @@ void UpdateStyle(bool dark) {
         ImGuiCol_FrameBg,
         ImGuiCol_TitleBgActive,
         ImGuiCol_ResizeGrip,
-    };
-    for (auto color : colors) {
+    };*/
+    for (auto& color : ImGui::GetStyle().Colors) {
         change_accent_color(color, accent_color);
-    }
+    }/*
     if (dark) {
         for (auto color : colors_dark) {
             change_accent_color(color, accent_color);
         }
-    }
+    }*/
 }
 // Main code
 int main(int, char**)