From 4ce574ea78532fb1c36d7019eddd49246ae6a84e Mon Sep 17 00:00:00 2001
From: Tendsin Mende <tendsin@protonmail.com>
Date: Mon, 6 Sep 2021 00:56:51 +0200
Subject: [PATCH] initial sdf output

---
 sdf_editor/src/main.rs | 82 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 79 insertions(+), 3 deletions(-)

diff --git a/sdf_editor/src/main.rs b/sdf_editor/src/main.rs
index 0823b6d..63b15e2 100644
--- a/sdf_editor/src/main.rs
+++ b/sdf_editor/src/main.rs
@@ -16,7 +16,16 @@ use{
         terminal::{Terminal, TerminalCompositor, TerminalEvent, TerminalEditor},
         list::{ListEditor},
         tree_nav::{TreeNav}
-    }
+    },
+    nako::{
+        stream::{SecondaryStream2d, PrimaryStream2d},
+        glam::{Vec2, Vec3},
+        operations::{
+            planar::primitives2d::Box2d,
+            volumetric::{Color, Union, Round},
+        },
+    },
+    nakorender::{backend::{Backend, LayerInfo}, winit, camera::Camera2d}
 };
 
 
@@ -32,7 +41,7 @@ impl ColorCollector {
             let r = l.get(&0).unwrap_or(0);
             let g = l.get(&1).unwrap_or(0);
             let b = l.get(&2).unwrap_or(0);
-
+            println!("Set r: {}", r);
             self.color.set((r as u8, g as u8, b as u8));
         }
     }
@@ -83,11 +92,14 @@ async fn main() {
     );
 
     compositor.write().unwrap().push(color_editor.get_term_view().offset(Vector2::new(2, 2)));
+
+    let color_view = color_port.outer().get_view();
     
     async_std::task::spawn(
         async move {
             loop {
                 term_port.update();
+                color_port.update();
                 match term.next_event().await {
                     TerminalEvent::Input(Event::Key(Key::Ctrl('c'))) |
                     TerminalEvent::Input(Event::Key(Key::Ctrl('g'))) |
@@ -118,7 +130,71 @@ async fn main() {
             }
         }
     );
+
+    async_std::task::spawn(async move {
+        term_writer.show().await.expect("output error!");
+    });
+
+
+    let event_loop = nakorender::winit::event_loop::EventLoop::new();
+    let window = nakorender::winit::window::Window::new(&event_loop).unwrap();
+    let mut renderer = nakorender::marp::MarpBackend::new(&window, &event_loop);
+
+    let id = renderer.new_layer_2d();
+    renderer.set_layer_order(&[id.into()]);
+    renderer.update_camera_2d(id, Camera2d{
+        extent: Vec2::new(2.0, 2.0),
+        location: Vec2::new(-1.0, -1.0),
+        rotation: 0.0
+    });
     
-    term_writer.show().await.expect("output error!");
+    event_loop.run(move |event, _target, control_flow|{
+        //Set to polling for now, might be overwritten
+        //TODO: Maybe we want to use "WAIT" for the ui thread? However, the renderers don't work that hard
+        //if nothing changes. So should be okay for a alpha style programm.
+        *control_flow = winit::event_loop::ControlFlow::Poll;
+        
+
+        
+        //now check if a rerender was requested, or if we worked on all
+        //events on that batch
+        match event{
+            winit::event::Event::WindowEvent{window_id: _, event: winit::event::WindowEvent::Resized(newsize)} => {
+                //update layer to cover whole window again.
+                renderer.set_layer_info(id.into(), LayerInfo{
+                    extent: (newsize.width as usize, newsize.height as usize),
+                    location: (0,0)
+                });
+            }
+            winit::event::Event::MainEventsCleared => {
+                window.request_redraw();
+            }
+            winit::event::Event::RedrawRequested(_) => {
+                let new_sdf = sdf_from_color(color_view.get());
+                renderer.update_sdf_2d(id, new_sdf);
+
+                renderer.render(&window);
+            }
+            _ => {},
+        }
+        
+    })
 }
 
+
+
+fn sdf_from_color(c: (u8, u8, u8)) -> PrimaryStream2d{
+    PrimaryStream2d::new()
+        .push(
+            SecondaryStream2d::new(
+                Union,
+                Box2d{extent: Vec2::new(0.5, 0.5)}
+            ).push_mod(Color(
+                Vec3::new(
+                    (c.0 as f32 / 255.0).clamp(0.0, 1.0),
+                    (c.1 as f32 / 255.0).clamp(0.0, 1.0),
+                    (c.2 as f32 / 255.0).clamp(0.0, 1.0),
+                )
+            )).push_mod(Round{radius: 0.2}).build()
+            ).build()
+}