1 files changed, 8 insertions, 0 deletions
diff --git a/ui/drawable.go b/ui/drawable.go
new file mode 100644
index 00000000..eb60463b
--- /dev/null
+++ b/ui/drawable.go
@@ -0,0 +1,8 @@
+package ui
+
+type Drawable interface {
+	// Called when this renderable should draw itself
+	Draw(ctx Context)
+	// Specifies a function to call when this cell needs to be redrawn
+	OnInvalidate(callback func(d Drawable))
+}