From 06d29763475c6d2cac6b24fee61c5a52bd08d51b Mon Sep 17 00:00:00 2001
From: "E. Almqvist" <elalmqvist@gmail.com>
Date: Wed, 11 May 2022 11:18:07 +0200
Subject: [PATCH] Switched to SDL2

---
 mas/fractals/mandel/src/main.rs   | 32 +++++++------------------------
 mas/fractals/mandel/src/mandel.rs | 23 +++++++++++++++++-----
 mas/fractals/mandel/src/render.rs | 17 ++++++++++++++++
 3 files changed, 42 insertions(+), 30 deletions(-)
 create mode 100644 mas/fractals/mandel/src/render.rs

diff --git a/mas/fractals/mandel/src/main.rs b/mas/fractals/mandel/src/main.rs
index c52e9c4..83c589a 100644
--- a/mas/fractals/mandel/src/main.rs
+++ b/mas/fractals/mandel/src/main.rs
@@ -1,13 +1,9 @@
 mod mandel;
+mod render;
 
 use std::env;
-use sfml::window::{Window, Event, Style};
-use sfml::graphics::{Color, Rect};
-use sfml::system::Vector2i;
 
-fn render_pixel(x: u32, y: u32, col: Color) -> Rect<i32> {
-    return rect;
-}
+use sdl2::pixels::Color;
 
 fn main() {
     /*
@@ -19,25 +15,11 @@ fn main() {
     let (width, height) = (640, 480);
     let (xr, yr) = ([-200, 200], [-200, 200]);
     
-    let mut win = Window::new((width, height), "Mandelbrot set", Style::CLOSE, &Default::default());
-    win.set_framerate_limit(20);
-    win.set_position(Vector2i::new(0, 0));
-
-    let mut rect = Rect::new(200, 200, 1, 1);
-    rect.set_fill_color(Color::RED);
-
-    while win.is_open() {
-        while let Some(ev) = win.poll_event() {
-            match ev {
-                Event::Closed => {win.close();},
-                _ => {}
-            }
-        }
-
-        rect.draw();
+    let (window, ctx, vid_sys) = render::create_window("Mandelbrot set", width, height);
+    let mut can = window.into_canvas().unwrap();
 
-        win.set_active(true);
-        win.display();
-    }
+    can.set_draw_color(Color::RGB(0, 0, 0));
+    can.clear();
+    can.present();
 }
 
diff --git a/mas/fractals/mandel/src/mandel.rs b/mas/fractals/mandel/src/mandel.rs
index 68adaab..e8c0758 100644
--- a/mas/fractals/mandel/src/mandel.rs
+++ b/mas/fractals/mandel/src/mandel.rs
@@ -1,8 +1,21 @@
 use num::complex::Complex;
 use matrix::Matrix;
-use sfml::system::Vector2u;
-use sfml::window::Window;
-use sfml::graphics::Color;
+use sdl2::pixels::Color;
+
+/*
+#[derive(Debug)]
+pub struct Color {
+    r: u8,
+    g: u8,
+    b: u8
+}
+
+impl Color {
+    pub fn rgb(r: u8, g: u8, b: u8) -> Self {
+        Self { r, g, b }
+    }
+}
+*/
 
 fn mandel(n: u64, c: Complex<f64>) -> Complex<f64> {
     if n == 0 {
@@ -20,9 +33,9 @@ pub fn get_point_color(w: i32, h: i32, x: i32, y: i32, depth: u64) -> Color {
     let mut norm = mandel(depth, c).norm(); 
     
     if norm < 2.0 {
-        return Color::rgb(0, 0, 0);
+        return Color::RGB(0, 0, 0);
     } else {
-        return Color::rgb(255, 255, 255);
+        return Color::RGB(255, 255, 255);
     }
 }
 
diff --git a/mas/fractals/mandel/src/render.rs b/mas/fractals/mandel/src/render.rs
new file mode 100644
index 0000000..52cc20e
--- /dev/null
+++ b/mas/fractals/mandel/src/render.rs
@@ -0,0 +1,17 @@
+extern crate sdl2;
+
+use sdl2::pixels::Color;
+use sdl2::event::Event;
+use sdl2::keyboard::Keycode;
+use std::time::Duration;
+
+pub fn create_window(title: &str, width: u32, height: u32) -> (sdl2::video::Window, sdl2::Sdl, sdl2::VideoSubsystem) {
+    let ctx = sdl2::init().unwrap();
+    let vid_sys = ctx.video().unwrap();
+
+    let window = vid_sys.window(title, width, height)
+                        .position_centered()
+                        .build()
+                        .unwrap();
+    return (window, ctx, vid_sys);
+}