Create a GTK hello world application

This commit sets everything up to be able to initialize a GTK
application with a window and a button.

Cargo.lock

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Cargo.toml

@@ -5,10 +5,17 @@ authors = ["Jeena <hello@jeena.net>"]
 edition = "2018"
 readme = "README.md"
 repository = "https://github.com/jeena/feedthemonkey"
-descrition = "Desktop client for the TinyTinyRSS feed reader"
+description = "Desktop client for the TinyTinyRSS feed reader"
-licese = "GPL-3.0-or-later"
+license = "GPL-3.0-or-later"
-license-file = "COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+
+[dependencies.gtk]
+version = "0.9.0"
+features = ["v3_16"]
+
+[dependencies.gio]
+version = ""
+features = ["v2_44"]

src/main.rs

@@ -1,3 +1,32 @@
+extern crate gtk;
+extern crate gio;
+
+use gtk::prelude::*;
+use gio::prelude::*;
+
+use gtk::{Application, ApplicationWindow, Button};
+
+
 fn main() {
-    println!("Hello, world!");
+    
+    let application = Application::new(
+        Some("net.jeena.feedthemonkey"),
+        Default::default(),
+    ).expect("failed to initialize GTK application");
+
+    application.connect_activate(|app| {
+        let window = ApplicationWindow::new(app);
+        window.set_title("FeedTheMonkey");
+        window.set_default_size(350, 70);
+
+        let button = Button::with_label("Click me!");
+        button.connect_clicked(|_| {
+            println!("Clicked!");
+        });
+        window.add(&button);
+
+        window.show_all();
+    });
+
+    application.run(&[]);
 }