add invert function and keybinds

1 files changed, 8 insertions, 0 deletions

diff --git a/src/bitmap.rs b/src/bitmap.rs
index d02cafb..c7e8fd4 100644
--- a/src/bitmap.rs
+++ b/src/bitmap.rs
@@ -231,6 +231,14 @@ where
     }
 }
 
+impl Pixmap<bool> {
+    pub fn invert(&mut self) {
+        for px in self.data.iter_mut() {
+            *px = !(*px);
+        }
+    }
+}
+
 fn abs_difference<T: Sub<Output = T> + Ord>(x: T, y: T) -> T {
     if x < y {
         y - x