first commit

.envrc

@@ -0,0 +1 @@
+use nix

.gitignore

@@ -0,0 +1,2 @@
+/target
+.direnv/

Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "dorocus"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+relm4 = "0.9.1"
+relm4-components = "0.9.1"
+relm4-macros = "0.9.1"

shell.nix

@@ -0,0 +1,15 @@
+{
+  pkgs ? import <nixpkgs> { },
+}:
+
+pkgs.mkShell rec {
+  buildInputs = with pkgs; [
+    pkg-config
+    atk
+    glib
+    graphene
+    gtk4
+  ];
+
+  LD_LIBRARY_PATH = builtins.foldl' (a: b: "${a}:${b}/lib") "${pkgs.vulkan-loader}/lib" buildInputs;
+}

src/main.rs

@@ -0,0 +1,85 @@
+use gtk::prelude::{BoxExt, ButtonExt, GtkWindowExt};
+use relm4::gtk::prelude::OrientableExt;
+use relm4::{gtk, ComponentParts, ComponentSender, RelmApp, RelmWidgetExt, SimpleComponent};
+
+struct AppModel {
+    counter: u64,
+}
+
+#[derive(Debug)]
+enum AppMsg {
+    Increment,
+    Decrement,
+}
+
+struct AppWidgets {
+    label: gtk::Label,
+}
+
+#[relm4::component]
+impl SimpleComponent for AppModel {
+    type Init = u64;
+
+    type Input = AppMsg;
+    type Output = ();
+
+    view! {
+        gtk::Window {
+            set_title: Some("Simple app"),
+            set_default_width: 300,
+            set_default_height: 100,
+
+            gtk::Box {
+                set_orientation: gtk::Orientation::Vertical,
+                set_spacing: 5,
+                set_margin_all: 5,
+
+                gtk::Button {
+                    set_label: "Increment",
+                    connect_clicked => AppMsg::Increment
+                },
+
+                gtk::Button::with_label("Decrement") {
+                    connect_clicked => AppMsg::Decrement
+                },
+
+                gtk::Label {
+                    #[watch]
+                    set_label: &format!("Counter: {}", model.counter),
+                    set_margin_all: 5,
+                }
+            }
+        }
+    }
+
+    // Initialize the UI.
+    fn init(
+        counter: Self::Init,
+        root: Self::Root,
+        sender: ComponentSender<Self>,
+    ) -> ComponentParts<Self> {
+        let model = AppModel { counter };
+
+        // Insert the macro code generation here
+        let widgets = view_output!();
+
+        ComponentParts { model, widgets }
+    }
+
+    fn update(&mut self, msg: Self::Input, _sender: ComponentSender<Self>) {
+        match msg {
+            AppMsg::Increment => {
+                self.counter = self.counter.wrapping_add(1);
+            }
+            AppMsg::Decrement => {
+                self.counter = self.counter.wrapping_sub(1);
+            }
+        }
+    }
+}
+
+fn main() {
+    let app = RelmApp::new("relm4.test.simple_manual");
+    app.run::<AppModel>(0);
+}
+