Move dioxus-specifc code into dioxus-tui crate and rename core crate to Rink

packages/dioxus-tui/examples/colorpicker.rs

@@ -0,0 +1,35 @@
+use dioxus::core::RenderReturn;
+use dioxus::prelude::*;
+use dioxus_tui::query::Query;
+use dioxus_tui::DioxusElementToNodeId;
+use dioxus_tui::Size;
+
+fn main() {
+    dioxus_tui::launch(app);
+}
+
+fn app(cx: Scope) -> Element {
+    let hue = use_state(cx, || 0.0);
+    let brightness = use_state(cx, || 0.0);
+    let tui_query: Query = cx.consume_context().unwrap();
+    let mapping: DioxusElementToNodeId = cx.consume_context().unwrap();
+    // disable templates so that every node has an id and can be queried
+    cx.render(rsx! {
+        div{
+            width: "100%",
+            background_color: "hsl({hue}, 70%, {brightness}%)",
+            onmousemove: move |evt| {
+                if let RenderReturn::Ready(node) = cx.root_node() {
+                    if let Some(id) = node.root_ids.get(0){
+                        let node = tui_query.get(mapping.get_node_id(id).unwrap());
+                        let Size{width, height} = node.size().unwrap();
+                        let pos = evt.inner().element_coordinates();
+                        hue.set((pos.x as f32/width as f32)*255.0);
+                        brightness.set((pos.y as f32/height as f32)*100.0);
+                    }
+                }
+            },
+            "hsl({hue}, 70%, {brightness}%)",
+        }
+    })
+}