Cache decoded toga color on gtk (#3117)

Cache decoded color on GTK backend.
beeware · Jan 24, 2025 · e400294 · e400294
1 parent 59d427a
commit e400294
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Showing 3 changed files with 3 additions and 3 deletions.
diff --git a/changes/3117.misc.rst b/changes/3117.misc.rst
@@ -0,0 +1 @@
+On GTK, native colors representations are now cached.
diff --git a/gtk/src/toga_gtk/colors.py b/gtk/src/toga_gtk/colors.py
@@ -6,5 +6,6 @@ def native_color(c):
         color = CACHE[c]
     except KeyError:
         color = (c.rgba.r / 255, c.rgba.g / 255, c.rgba.b / 255, c.rgba.a)
+        CACHE[c] = color
 
     return color
diff --git a/gtk/src/toga_gtk/widgets/button.py b/gtk/src/toga_gtk/widgets/button.py
@@ -36,9 +36,7 @@ def set_enabled(self, value):
 
     def set_background_color(self, color):
         # Buttons interpret TRANSPARENT backgrounds as a reset
-        if color == TRANSPARENT:
-            color = None
-        super().set_background_color(color)
+        super().set_background_color(None if color is TRANSPARENT else color)
 
     def rehint(self):
         # print(
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		On GTK, native colors representations are now cached.