Implementation of the simple druid example of crates.io

.gitignore

@@ -1 +1,3 @@
 /target
+Cargo.lock
+.idea/

Cargo.toml

@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+druid = "0.7.0"

src/main.rs

@@ -1,3 +1,22 @@
-fn main() {
-    println!("Hello, world!");
+use druid::widget::{Button, Flex, Label};
+use druid::{AppLauncher, LocalizedString, PlatformError, Widget, WidgetExt, WindowDesc};
+
+fn main() -> Result<(), PlatformError> {
+    let main_window = WindowDesc::new(ui_builder);
+    let data = 0_u32;
+    AppLauncher::with_window(main_window)
+        .use_simple_logger()
+        .launch(data)
 }
+
+fn ui_builder() -> impl Widget<u32> {
+    // The label text will be computed dynamically based on the current locale and count
+    let text =
+        LocalizedString::new("hello-counter").with_arg("count", |data: &u32, _env| (*data).into());
+    let label = Label::new(text).padding(5.0).center();
+    let button = Button::new("increment")
+        .on_click(|_ctx, data, _env| *data += 1)
+        .padding(2.0);
+
+    Flex::column().with_child(label).with_child(button)
+}