Data commit

Task/Animation/Rust/animation.rust

@@ -0,0 +1,60 @@
+#[cfg(feature = "gtk")]
+mod graphical {
+    extern crate gtk;
+
+    use self::gtk::traits::*;
+    use self::gtk::{Inhibit, Window, WindowType};
+    use std::ops::Not;
+    use std::sync::{Arc, RwLock};
+
+    pub fn create_window() {
+        gtk::init().expect("Failed to initialize GTK");
+
+        let window = Window::new(WindowType::Toplevel);
+        window.connect_delete_event(|_, _| {
+            gtk::main_quit();
+            Inhibit(false)
+        });
+        let button = gtk::Button::new_with_label("Hello World! ");
+        window.add(&button);
+
+        let lock = Arc::new(RwLock::new(false));
+
+        let lock_button = lock.clone();
+        button.connect_clicked(move |_| {
+            let mut reverse = lock_button.write().unwrap();
+            *reverse = reverse.not();
+        });
+
+        let lock_thread = lock.clone();
+        gtk::timeout_add(100, move || {
+            let reverse = lock_thread.read().unwrap();
+            let mut text = button.get_label().unwrap();
+            let len = &text.len();
+
+            if *reverse {
+                let begin = &text.split_off(1);
+                text.insert_str(0, begin);
+            } else {
+                let end = &text.split_off(len - 1);
+                text.insert_str(0, end);
+            }
+
+            button.set_label(&text);
+
+            gtk::Continue(true)
+        });
+
+        window.show_all();
+        gtk::main();
+    }
+}
+
+
+#[cfg(feature = "gtk")]
+fn main() {
+    graphical::create_window();
+}
+
+#[cfg(not(feature = "gtk"))]
+fn main() {}