From f436f20eb86b2324126a54d4164b4cedf2134a45 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Wed, 12 Feb 2020 03:47:36 +0100
Subject: Draft `Canvas` types and `clock` example

---
 wgpu/src/widget/canvas/data.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 wgpu/src/widget/canvas/data.rs

(limited to 'wgpu/src/widget/canvas/data.rs')

diff --git a/wgpu/src/widget/canvas/data.rs b/wgpu/src/widget/canvas/data.rs
new file mode 100644
index 00000000..25d94f4c
--- /dev/null
+++ b/wgpu/src/widget/canvas/data.rs
@@ -0,0 +1,20 @@
+#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
+pub struct Data<T> {
+    raw: T,
+    version: usize,
+}
+
+impl<T> Data<T> {
+    pub fn new(data: T) -> Self {
+        Data {
+            raw: data,
+            version: 0,
+        }
+    }
+
+    pub fn update(&mut self, f: impl FnOnce(&mut T)) {
+        f(&mut self.raw);
+
+        self.version += 1;
+    }
+}
-- 
cgit