Add the main functions

README.md

@@ -3,4 +3,12 @@
 Desktop gadgets for Linux!
 
 # Building
-Looker can be built using vala.
+Looker can be built using vala.
+On an elementary OS system (the only officially supported by me platform)
+## Installing dependencies
+`sudo apt install elementary-sdk`
+## Using Valac directly
+`valac --pkg gtk4 /src/main.vala`
+## Using build sh
+`chmod +x build.sh`
+`./build.sh`

build.sh

@@ -0,0 +1,3 @@
+# Building Looker
+
+valac --pkg gtk4 /src/main.vala

src/main.vala

@@ -0,0 +1,45 @@
+using Gtk;
+using Gdk;
+
+public class LookerControl : Application {
+    private Overlay overlay;
+    private Button add_gadget_button;
+
+    public LookerControl() {
+        Object(application_id: "app.hackclub.conzie.LookerControl",
+                flags: ApplicationFlags.FLAGS_NONE);
+    }
+
+    protected override void activate() {
+        var window = new ApplicationWindow(this);
+        window.set_decorated(false);
+        window.fullscreen();
+        window.set_app_paintable(true);
+        window.override_background_color(StateFlags.NORMAL, new RGBA(0, 0, 0, 0.5));
+
+        overlay = new Overlay();
+
+        add_gadget_button = new Button.from_icon_name("list-add", IconSize.LARGE);
+        add_gadget_button.halign = Align.END;
+        add_gadget_button.valign = Align.END;
+        add_gadget_button.margin_end = 20;
+        add_gadget_button.margin_bottom = 20;
+        add_gadget_button.clicked.connect(() => add_clock_gadget());
+
+        overlay.add_overlay(add_gadget_button);
+        window.add(overlay);
+
+        window.show_all;
+    }
+
+    private void add_clock_gadget() {
+        var clock_gadget = new DraggableClock();
+        overlay.add(clock_gadget);
+        window.show_all;
+    }
+
+    public static int main(string[] args) {
+        var app = new LookerControl();
+        return app.run(args);
+    }
+}