switch gpui -> iced

Cargo.toml

@@ -6,4 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-gpui = { git = "https://github.com/zed-industries/zed", tag = "v0.129.2" }
+iced = {version = "0.12.1"}

flake.nix

@@ -13,7 +13,7 @@
     let pkgs = nixpkgs.legacyPackages.x86_64-linux;
     in {
       devShell.x86_64-linux = with pkgs;
-        mkShell {
+        mkShell rec {
           nativeBuildInputs = [
             just
             pkg-config
@@ -22,28 +22,24 @@
               dir = ./.;
               sha256 = "sha256-7QfkHty6hSrgNM0fspycYkRcB82eEqYa4CoAJ9qA3tU= ";
             })
+            fenix.packages.x86_64-linux.rust-analyzer
           ];
 
           buildInputs = [
-            curl
             fontconfig
-            freetype
-            libgit2
-            openssl
-            sqlite
-            zlib
-            zstd
+
+            vulkan-headers
             vulkan-loader
-          ] ++ lib.optionals stdenv.isLinux [
-            alsa-lib
+            libGL
+
             libxkbcommon
+
             wayland
-            xorg.libxcb
           ];
 
           env = {
-            WAYLAND_DISPLAY = ""; # Window has nor decoration on Wayland
-            LD_LIBRARY_PATH = with pkgs; lib.makeLibraryPath [ vulkan-loader ];
+            # WAYLAND_DISPLAY = ""; # Window has nor decoration on Wayland
+            LD_LIBRARY_PATH = with pkgs; lib.makeLibraryPath buildInputs;
           };
         };
 

src/main.rs

@@ -1,39 +1,123 @@
-use gpui::*;
+use iced::{alignment, widget::{button, column, container, row, scrollable, text, text_input, Column}, Element, Length, Padding, Sandbox, Settings};
 
-struct HelloWorld {
-    text: SharedString,
+
+#[derive(Debug, Clone)]
+enum Message {
+    InputValue(String),
+    Submitted,
+    DeleteItem(usize),
+}
+ 
+/**
+ * This is your model. It contains all the data needed for your application to work properly. 
+ * The model can only be updated with the `update` function. 
+*/
+struct GroceryList {
+    grocery_items: Vec<String>,
+    input_value: String,
+    
 }
 
-impl Render for HelloWorld {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
-        div()
-            .flex()
-            .bg(rgb(0x2e7d32))
-            .size(Length::Definite(Pixels(300.0).into()))
-            .justify_center()
-            .items_center()
-            .shadow_lg()
-            .border()
-            .border_color(rgb(0x0000ff))
-            .text_xl()
-            .text_color(rgb(0xffffff))
-            .child(format!("Hello, {}!", &self.text))
+impl Sandbox for GroceryList {
+    type Message = Message;
+
+    /* Initialize your app */
+    fn new() -> GroceryList {
+        Self {
+            grocery_items: vec![
+                "Eggs".to_owned(), 
+                "Milk".to_owned(), 
+                "Flour".to_owned()
+            ],
+            input_value: String::default()
+        }
     }
+
+    /**
+     * The title of the window. It will show up on the top of your application window.
+     */
+    fn title(&self) -> String {
+        String::from("Grocery List App")
+    }
+
+    fn update(&mut self, message: Self::Message) {
+        match message {
+            Message::InputValue(value) => self.input_value = value,
+            Message::Submitted => {
+                let input_value = self.input_value.clone();
+                self.input_value = String::default(); // Clear the input value
+                self.grocery_items.push(input_value);
+            }
+            Message::DeleteItem(item) => {
+                self.grocery_items.remove(item);
+            },        
+        }
+    }
+
+    fn view(&self) -> Element<Self::Message> {
+        container(
+            column!(
+                items_list_view(&self.grocery_items),
+                row!(
+                    text_input("Input grocery item", &self.input_value)
+                    .on_input(|value| Message::InputValue(value))
+                    .on_submit(Message::Submitted), 
+
+                    button("Submit")
+                    .on_press(Message::Submitted)
+                )
+                .spacing(30)
+                .padding(Padding::from(30))
+            )
+            .align_items(iced::Alignment::Center)
+        )
+        .height(Length::Fill)
+        .width(Length::Fill)
+        .align_x(alignment::Horizontal::Center)
+        .align_y(alignment::Vertical::Center)
+        .into()
+    }
+
+    fn theme(&self) -> iced::Theme {
+        iced::Theme::Dark
+    }
+
 }
 
-fn main() {
-    App::new().run(|cx: &mut AppContext| {
-        let bounds = Bounds::centered(None, size(px(600.0), px(600.0)), cx);
-        cx.open_window(
-            WindowOptions {
-                bounds: Some(bounds),
-                ..Default::default()
-            },
-            |cx| {
-                cx.new_view(|_cx| HelloWorld {
-                    text: "World".into(),
-                })
-            },
-        );
-    });
+fn items_list_view(items: &Vec<String>) -> Element<'static, Message> {
+
+    let mut column = Column::new()
+    .spacing(20)
+    .align_items(iced::Alignment::Center)
+    .width(Length::Fill);
+
+    for (index, value) in items.into_iter().enumerate() {
+        column = column.push(grocery_item(index, value));
+    }
+
+    scrollable(
+        container(
+            column
+        )
+    )
+    .height(250.0)
+    .width(300)
+    .into()
+}
+
+
+fn grocery_item(index: usize, value: &str) -> Element<'static, Message> {
+    row!(
+        text(value),
+        button("Delete")
+        .on_press(Message::DeleteItem(index))
+    )
+    .align_items(iced::Alignment::Center)
+    .spacing(30)
+    .into()
+}
+
+
+pub fn main() -> iced::Result {
+    GroceryList::run(Settings::default())
 }