DPF

commit e6ec672107e35acea784f03839af5d0ff802d7bd
parent 073b662b9e967abb33b220de8040eb910482b337
Author: falkTX <falktx@falktx.com>
Date:   Wed, 29 Mar 2023 15:43:01 +0200

Add Color::invert()

Signed-off-by: falkTX <falktx@falktx.com>

Diffstat:
M
dgl/Color.hpp
 | 
5
+++++
M
dgl/src/Color.cpp
 | 
9
+++++++++

2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/dgl/Color.hpp b/dgl/Color.hpp
@@ -95,6 +95,11 @@ struct Color {
     Color plus(float value) const noexcept;
 
    /**
+      Create a new color based on this one but colors inverted.
+    */
+    Color invert() const noexcept;
+
+   /**
       Create a color specified by hue, saturation and lightness.
       Values must in [0..1] range.
     */
diff --git a/dgl/src/Color.cpp b/dgl/src/Color.cpp
@@ -163,6 +163,15 @@ Color Color::plus(const float value) const noexcept
     return color;
 }
 
+Color Color::invert() const noexcept
+{
+    Color color(*this);
+    color.red = 1.f - color.red;
+    color.green = 1.f - color.green;
+    color.blue = 1.f - color.blue;
+    return color;
+}
+
 Color Color::fromHSL(float hue, float saturation, float lightness, float alpha)
 {
     float m1, m2;