2019-01-12 22:07:30 +00:00
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#![deny(warnings)]
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extern crate serde_json;
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extern crate wasm_bindgen;
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extern crate emigui;
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2019-01-14 13:54:06 +00:00
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use emigui::{widgets::label, Align, Emigui, RawInput};
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2019-01-12 22:07:30 +00:00
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use wasm_bindgen::prelude::*;
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mod app;
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mod webgl;
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fn now_ms() -> f64 {
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web_sys::window()
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.expect("should have a Window")
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.performance()
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.expect("should have a Performance")
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.now()
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}
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#[wasm_bindgen]
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pub struct State {
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app: app::App,
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emigui: Emigui,
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webgl_painter: webgl::Painter,
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everything_ms: f64,
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}
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impl State {
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2019-01-19 16:10:28 +00:00
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fn new(canvas_id: &str, pixels_per_point: f32) -> Result<State, JsValue> {
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2019-01-12 22:07:30 +00:00
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Ok(State {
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app: Default::default(),
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2019-01-19 16:10:28 +00:00
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emigui: Emigui::new(pixels_per_point),
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2019-01-17 17:03:39 +00:00
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webgl_painter: webgl::Painter::new(canvas_id)?,
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2019-01-12 22:07:30 +00:00
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everything_ms: 0.0,
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})
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}
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fn run(&mut self, raw_input: RawInput) -> Result<(), JsValue> {
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let everything_start = now_ms();
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self.emigui.new_frame(raw_input);
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let mut region = self.emigui.whole_screen_region();
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2019-01-17 23:34:01 +00:00
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let mut region = region.centered_column(region.width().min(480.0), Align::Min);
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2019-01-12 22:07:30 +00:00
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self.app.show_gui(&mut region);
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self.emigui.example(&mut region);
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region.add(label("WebGl painter info:"));
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region.indent(|region| {
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region.add(label(self.webgl_painter.debug_info()));
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});
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region.add(label(format!("Everything: {:.1} ms", self.everything_ms)));
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let frame = self.emigui.paint();
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2019-01-19 16:10:28 +00:00
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let result =
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self.webgl_painter
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.paint(&frame, self.emigui.texture(), raw_input.pixels_per_point);
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2019-01-12 22:07:30 +00:00
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self.everything_ms = now_ms() - everything_start;
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result
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}
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}
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#[wasm_bindgen]
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2019-01-19 16:10:28 +00:00
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pub fn new_webgl_gui(canvas_id: &str, pixels_per_point: f32) -> Result<State, JsValue> {
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State::new(canvas_id, pixels_per_point)
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2019-01-12 22:07:30 +00:00
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}
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#[wasm_bindgen]
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pub fn run_gui(state: &mut State, raw_input_json: &str) -> Result<(), JsValue> {
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// TODO: nicer interface than JSON
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let raw_input: RawInput = serde_json::from_str(raw_input_json).unwrap();
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state.run(raw_input)
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}
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