Add toolbar binary as a testing ground

Cargo.toml

@@ -13,7 +13,8 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
 [patch.crates-io]
-druid = { git = "https://github.com/doppioandante/druid", branch = "stylus_events_0.6.0", features = ["im"] }
+druid = { git = "https://github.com/doppioandante/druid", branch = "v0.6.0_stiletto", features = ["im"] }
+#druid = { path = "../druid/druid", features = ["im"] }
 
 [dependencies.gtk]
 version = "0.8.1"

src/bin/canvas_tool_list.rs

@@ -0,0 +1,85 @@
+//  Stiletto
+//  Copyright (C) 2020 Stiletto Authors
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU Affero General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Affero General Public License for more details.
+//
+//  You should have received a copy of the GNU Affero General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+//use log::{info, warn};
+
+use druid::im::{vector, Vector};
+use druid::widget::prelude::*;
+use druid::{AppLauncher, Color, Data, LocalizedString, WindowDesc, Lens};
+
+#[derive(Clone, Data, Lens)]
+struct AppState {
+    numbers: Vector<u32>,
+}
+
+fn build_ui() -> impl Widget<AppState> {
+    use druid::UnitPoint;
+    use druid::widget::{Align, Label, Button, CrossAxisAlignment, Flex, List, ListGrowDirection, WidgetExt, SizedBox};
+
+    let list_buttons = Flex::row()
+        .cross_axis_alignment(CrossAxisAlignment::Center)
+        .with_child(Button::new("Add"))
+        .with_child(Button::new("Remove"));
+
+    let number_list = Flex::row()
+        .cross_axis_alignment(CrossAxisAlignment::Center)
+    	.with_flex_child(
+            List::new(|| {
+                SizedBox::new(
+                    Label::new(|item: &u32, _env: &_| format!("{}", item))
+                        .align_horizontal(UnitPoint::CENTER)
+                        .background(Color::rgb(0.5, 0.5, 0.5))
+                        .fix_width(100.0)
+                        .fix_height(100.0)
+                )
+                .padding((10.0, 0.0))
+            })
+            .grow(ListGrowDirection::Right)
+            .lens(AppState::numbers)
+    	, 1.0);
+
+    let toolbar = Flex::row()
+        .cross_axis_alignment(CrossAxisAlignment::Center)
+        .with_spacer(30.0)
+        .with_child(Align::left(list_buttons))
+        .with_spacer(30.0)
+        .with_flex_child(Align::left(number_list), 1.0);
+
+    Flex::column()
+        .cross_axis_alignment(CrossAxisAlignment::Center)
+        .with_child(
+            SizedBox::new(toolbar)
+            .height(100.0)
+            .expand_width()
+            .align_horizontal(UnitPoint::TOP)
+        )
+}
+
+pub fn main() {
+    let window = WindowDesc::new(build_ui)
+        .window_size((1000.0, 400.00))
+        .title(
+            LocalizedString::new("custom-widget-demo-window-title").with_placeholder("Tools"),
+        );
+    let app_state = AppState {
+        numbers: vector![1,2],
+    };
+
+    AppLauncher::with_window(window)
+        .use_simple_logger()
+        .launch(app_state)
+        .expect("launch failed");
+}