Introduce Program API

examples/tooltip/src/main.rs

@@ -1,12 +1,13 @@
 use iced::widget::tooltip::Position;
 use iced::widget::{button, container, tooltip};
-use iced::{Element, Length, Sandbox, Settings};
+use iced::{Element, Length};
 
 pub fn main() -> iced::Result {
-    Example::run(Settings::default())
+    iced::run("Tooltip - Iced", Tooltip::update, Tooltip::view)
 }
 
-struct Example {
+#[derive(Default)]
+struct Tooltip {
     position: Position,
 }
 
@@ -15,28 +16,16 @@ enum Message {
     ChangePosition,
 }
 
-impl Sandbox for Example {
-    type Message = Message;
-
-    fn new() -> Self {
-        Self {
-            position: Position::Bottom,
-        }
-    }
-
-    fn title(&self) -> String {
-        String::from("Tooltip - Iced")
-    }
-
+impl Tooltip {
     fn update(&mut self, message: Message) {
         match message {
             Message::ChangePosition => {
                 let position = match &self.position {
-                    Position::FollowCursor => Position::Top,
                     Position::Top => Position::Bottom,
                     Position::Bottom => Position::Left,
                     Position::Left => Position::Right,
                     Position::Right => Position::FollowCursor,
+                    Position::FollowCursor => Position::Top,
                 };
 
                 self.position = position;