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Diffstat (limited to 'lib/public/Color.php')
| -rw-r--r-- | lib/public/Color.php | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/public/Color.php b/lib/public/Color.php index e2cabd9c2fc..6c9a35ca49c 100644 --- a/lib/public/Color.php +++ b/lib/public/Color.php @@ -125,6 +125,14 @@ class Color { return $palette; } + public function alphaBlending(float $opacity, Color $source): Color { + return new Color( + (int)((1 - $opacity) * $source->red() + $opacity * $this->red()), + (int)((1 - $opacity) * $source->green() + $opacity * $this->green()), + (int)((1 - $opacity) * $source->blue() + $opacity * $this->blue()) + ); + } + /** * Calculate steps between two Colors * @param int $steps start color |