Flashy typey text on one line

main
mat ess 2022-08-18 22:49:54 -04:00
parent fb908a83ef
commit 81cd5ef641
11 changed files with 86 additions and 23 deletions

7
Cargo.lock generated
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@ -8,6 +8,12 @@ version = "1.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
[[package]]
name = "c_vec"
version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fdd7a427adc0135366d99db65b36dae9237130997e560ed61118041fb72be6e8"
[[package]] [[package]]
name = "cfg-if" name = "cfg-if"
version = "1.0.0" version = "1.0.0"
@ -40,6 +46,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f7959277b623f1fb9e04aea73686c3ca52f01b2145f8ea16f4ff30d8b7623b1a" checksum = "f7959277b623f1fb9e04aea73686c3ca52f01b2145f8ea16f4ff30d8b7623b1a"
dependencies = [ dependencies = [
"bitflags", "bitflags",
"c_vec",
"lazy_static", "lazy_static",
"libc", "libc",
"sdl2-sys", "sdl2-sys",

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@ -6,4 +6,4 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
sdl2 = "0.35.2" sdl2 = { version = "0.35.2", features = ["gfx", "ttf"] }

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@ -26,20 +26,21 @@
systems = nixpkgs.lib.systems.flakeExposed; systems = nixpkgs.lib.systems.flakeExposed;
perSystem = { config, self', inputs', pkgs, system, ... }: perSystem = { config, self', inputs', pkgs, system, ... }:
let let
toolchain = pkgs.rust-bin.stable.latest.default; toolchain = pkgs.rust-bin.stable.latest.complete;
naersk-lib = pkgs.callPackage naersk { naersk-lib = pkgs.callPackage naersk {
cargo = toolchain; cargo = toolchain;
rustc = toolchain; rustc = toolchain;
}; };
deps = with pkgs; [ SDL2 SDL2_gfx SDL2_ttf ];
in in
{ {
packages.default = naersk-lib.buildPackage { packages.default = naersk-lib.buildPackage {
src = ./.; src = ./.;
buildInputs = with pkgs; [ SDL2 ]; buildInputs = deps;
}; };
apps.default.program = "${config.packages.default}/bin/medit"; apps.default.program = "${config.packages.default}/bin/medit";
devShells.default = pkgs.mkShell { devShells.default = pkgs.mkShell {
nativeBuildInputs = [ toolchain ]; nativeBuildInputs = [ toolchain ] ++ deps;
}; };
}; };
}; };

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@ -1,23 +1,44 @@
use sdl2::{event::Event, init, keyboard::Keycode, pixels::Color}; use sdl2::event::Event;
use sdl2::keyboard::Keycode;
use sdl2::pixels::Color;
use sdl2::rect::Rect;
use sdl2::render::Texture;
use sdl2::render::TextureCreator;
use sdl2::render::TextureQuery;
use sdl2::ttf;
use sdl2::ttf::Font;
use sdl2::video::WindowContext;
fn main() { fn string_err(e: impl ToString) -> String {
let ctx = init().unwrap(); e.to_string()
let vid = ctx.video().unwrap(); }
let win = vid
.window("medit", 800, 600) const WIDTH: u32 = 800;
const HEIGHT: u32 = 600;
fn main() -> Result<(), String> {
let context = sdl2::init()?;
let video = context.video()?;
let ttf_context = ttf::init().map_err(string_err)?;
let window = video
.window("medit", WIDTH, HEIGHT)
.position_centered() .position_centered()
.allow_highdpi()
.build() .build()
.unwrap(); .map_err(string_err)?;
let mut can = win.into_canvas().build().unwrap();
can.set_draw_color(Color::RGB(0, 255, 255)); let mut canvas = window.into_canvas().build().map_err(string_err)?;
can.clear(); let texture_creator = canvas.texture_creator();
can.present();
let mut event_pump = ctx.event_pump().unwrap(); let font = ttf_context.load_font("resources/fonts/ttf/FiraCode-VF.ttf", 128)?;
let mut i = 0;
canvas.set_draw_color(Color::WHITE);
canvas.clear();
let mut event_pump = context.event_pump()?;
let mut x = 0;
'running: loop { 'running: loop {
i = (i + 1) % 255;
can.set_draw_color(Color::RGB(i, 64, 255 - i));
can.clear();
for event in event_pump.poll_iter() { for event in event_pump.poll_iter() {
match event { match event {
Event::Quit { .. } Event::Quit { .. }
@ -25,12 +46,46 @@ fn main() {
keycode: Some(Keycode::Escape), keycode: Some(Keycode::Escape),
.. ..
} => break 'running, } => break 'running,
Event::KeyDown {
keycode: Some(k), ..
} if is_drawable_key(k) => {
canvas.clear();
let texture = string_texture(&font, &texture_creator, k.name())?;
let target = target_rect(x, 0, &texture);
x += target.width() as i32;
canvas.copy(&texture, None, Some(target))?;
}
_ => {} _ => {}
} }
} }
// The rest of the game loop goes here... canvas.present();
can.present();
std::thread::sleep(std::time::Duration::new(0, 1_000_000_000u32 / 60)); std::thread::sleep(std::time::Duration::new(0, 1_000_000_000u32 / 60));
} }
Ok(())
}
fn is_drawable_key(key: Keycode) -> bool {
let key = key as i32;
(key >= Keycode::A as i32 && key <= Keycode::Z as i32)
|| (key >= Keycode::Num0 as i32 && key <= Keycode::Num9 as i32)
}
fn string_texture<'f, 't>(
font: &Font<'f, 'f>,
texture_creator: &'t TextureCreator<WindowContext>,
string: impl AsRef<str>,
) -> Result<Texture<'t>, String> {
let surface = font
.render(string.as_ref())
.blended(Color::BLACK)
.map_err(string_err)?;
texture_creator
.create_texture_from_surface(surface)
.map_err(string_err)
}
fn target_rect(x: i32, y: i32, texture: &Texture) -> Rect {
let TextureQuery { width, height, .. } = texture.query();
Rect::new(x, y, width, height)
} }