From 4954ef899b2b7ba7852da0897e2aef7eb23934cd Mon Sep 17 00:00:00 2001
From: Bob Polis <bob@avtware.com>
Date: Wed, 22 Nov 2023 23:27:10 +0000
Subject: [PATCH] Add option to enable/disable background change

---
 modules/Grid/Grid.cpp  | 13 ++++++++-----
 modules/Grid/Grid.json |  1 +
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/modules/Grid/Grid.cpp b/modules/Grid/Grid.cpp
index 7a233d9..1d4a59f 100644
--- a/modules/Grid/Grid.cpp
+++ b/modules/Grid/Grid.cpp
@@ -50,7 +50,7 @@ class Grid : public ScreensaverPlugin {
         double _border {75};
         double _min_size {2};
         double _max_size {50};
-
+        bool _change_bg {true};
         void animate();
 };
 
@@ -100,6 +100,7 @@ void Grid::configure() {
     _fade = _j["fade"];
     _border = _j["border"];
     _new.bg = Color {_j["bg"]};
+    _change_bg = _j["changebg"];
     _colors.clear();
     for (const auto& hex : _j["colors"]) {
         _colors.emplace_back(hex);
@@ -156,10 +157,12 @@ void Grid::render() {
 
 void Grid::animate() {
     double f {static_cast<double>(_frames) / (_fade * fps())};
-    RGB bg1 {RGB(_old.bg)};
-    RGB bg2 {RGB(_new.bg)};
-    RGB bg3 {bg1.r + f * (bg2.r - bg1.r), bg1.g + f * (bg2.g - bg1.g), bg1.b + f * (bg2.b - bg1.b)};
-    _cur.bg = bg3;
+    if (_change_bg) {
+        RGB bg1 {RGB(_old.bg)};
+        RGB bg2 {RGB(_new.bg)};
+        RGB bg3 {bg1.r + f * (bg2.r - bg1.r), bg1.g + f * (bg2.g - bg1.g), bg1.b + f * (bg2.b - bg1.b)};
+        _cur.bg = bg3;
+    }
     for (size_t i = 0; i < _old.rects.size(); ++i) {
         Rect& r1 = _old.rects[i];
         Rect& r2 = _new.rects[i];
diff --git a/modules/Grid/Grid.json b/modules/Grid/Grid.json
index bddd090..05670cf 100644
--- a/modules/Grid/Grid.json
+++ b/modules/Grid/Grid.json
@@ -6,6 +6,7 @@
     "fade": 7,
     "border": 100.0,
     "bg": "#B1D1AF",
+    "changebg": false,
     "colors": [
         "#FFE3BF",
         "#170D00",