fix: The Image::setOpacity method returns wrong result when opacity = 0

Aiger · Jan 2, 2017 · fc4256e · fc4256e
1 parent 23043b5
commit fc4256e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Image.php b/src/Image.php
@@ -397,7 +397,7 @@ function setOpacity( $opacity )
             return $this;
         }
 
-        $restLayersOpacity = ceil( $opacity ) - 1;
+        $restLayersOpacity = max( ceil( $opacity ) - 1, 0 );
         $firstLayerOpacity = $opacity - $restLayersOpacity;
 
         $bitmap = static::copyBitmap( $this->bitmap );