2019-11-29 09:41:08 +03:00
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use crate::assets::Assets;
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2020-02-11 07:23:12 +03:00
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use crate::backend::{GfxCtxInnards, PrerenderInnards};
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2019-10-09 21:21:04 +03:00
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use crate::{
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2020-03-31 01:48:23 +03:00
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Canvas, Color, Drawable, FancyColor, GeomBatch, HorizontalAlignment, ScreenDims, ScreenPt,
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ScreenRectangle, Text, VerticalAlignment,
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2019-10-09 21:21:04 +03:00
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};
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2020-03-21 04:05:50 +03:00
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use geom::{Bounds, Circle, Distance, Line, Polygon, Pt2D};
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2019-09-11 19:03:59 +03:00
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use std::cell::Cell;
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2020-02-07 22:20:11 +03:00
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// Lower is more on top
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const MAPSPACE_Z: f32 = 1.0;
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const SCREENSPACE_Z: f32 = 0.5;
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const TOOLTIP_Z: f32 = 0.0;
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2019-01-25 03:09:29 +03:00
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2020-02-11 03:18:31 +03:00
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pub struct Uniforms {
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2019-09-11 00:08:05 +03:00
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// (cam_x, cam_y, cam_zoom)
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2020-02-11 03:18:31 +03:00
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pub transform: [f32; 3],
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2020-03-09 19:40:59 +03:00
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// (window_width, window_height, Z values)
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2020-02-11 03:18:31 +03:00
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pub window: [f32; 3],
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2019-09-11 00:08:05 +03:00
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}
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2020-02-11 03:18:31 +03:00
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impl Uniforms {
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pub fn new(canvas: &Canvas) -> Uniforms {
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2019-09-11 00:08:05 +03:00
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Uniforms {
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transform: [
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canvas.cam_x as f32,
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canvas.cam_y as f32,
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canvas.cam_zoom as f32,
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],
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window: [
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canvas.window_width as f32,
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canvas.window_height as f32,
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2020-02-07 22:20:11 +03:00
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MAPSPACE_Z,
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2019-09-11 00:08:05 +03:00
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],
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2019-09-11 01:44:07 +03:00
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}
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2019-09-11 00:08:05 +03:00
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}
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}
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2019-01-25 03:09:29 +03:00
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pub struct GfxCtx<'a> {
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2020-02-11 03:18:31 +03:00
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pub(crate) inner: GfxCtxInnards<'a>,
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uniforms: Uniforms,
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2019-01-25 03:19:02 +03:00
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2019-04-24 01:33:52 +03:00
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screencap_mode: bool,
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pub(crate) naming_hint: Option<String>,
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2019-02-01 03:43:09 +03:00
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// TODO Don't be pub. Delegate everything.
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pub canvas: &'a Canvas,
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2020-02-10 21:01:49 +03:00
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pub prerender: &'a Prerender,
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2019-02-01 03:43:09 +03:00
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2019-01-25 03:19:02 +03:00
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pub num_draw_calls: usize,
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2020-02-09 00:52:29 +03:00
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pub num_forks: usize,
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2019-01-25 03:09:29 +03:00
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}
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impl<'a> GfxCtx<'a> {
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2019-02-06 01:43:46 +03:00
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pub(crate) fn new(
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2020-02-10 21:01:49 +03:00
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prerender: &'a Prerender,
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2020-02-11 03:18:31 +03:00
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canvas: &'a Canvas,
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2019-04-24 01:33:52 +03:00
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screencap_mode: bool,
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2019-01-25 03:09:29 +03:00
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) -> GfxCtx<'a> {
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2020-02-11 03:18:31 +03:00
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let uniforms = Uniforms::new(canvas);
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2019-01-25 03:09:29 +03:00
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GfxCtx {
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2020-02-11 03:18:31 +03:00
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inner: prerender.inner.draw_new_frame(),
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uniforms,
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2019-02-01 03:43:09 +03:00
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canvas,
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2019-02-06 01:43:46 +03:00
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prerender,
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2019-01-25 03:19:02 +03:00
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num_draw_calls: 0,
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2020-02-09 00:52:29 +03:00
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num_forks: 0,
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2019-04-24 01:33:52 +03:00
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screencap_mode,
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naming_hint: None,
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2019-01-25 03:09:29 +03:00
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}
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}
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// Up to the caller to call unfork()!
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// TODO Canvas doesn't understand this change, so things like text drawing that use
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// map_to_screen will just be confusing.
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2020-03-09 19:40:59 +03:00
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pub fn fork(
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&mut self,
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top_left_map: Pt2D,
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top_left_screen: ScreenPt,
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zoom: f64,
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z: Option<f32>,
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) {
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2019-01-25 03:09:29 +03:00
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// map_to_screen of top_left_map should be top_left_screen
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let cam_x = (top_left_map.x() * zoom) - top_left_screen.x;
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let cam_y = (top_left_map.y() * zoom) - top_left_screen.y;
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2019-09-11 00:08:05 +03:00
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self.uniforms.transform = [cam_x as f32, cam_y as f32, zoom as f32];
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self.uniforms.window = [
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self.canvas.window_width as f32,
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self.canvas.window_height as f32,
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2020-03-09 19:40:59 +03:00
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z.unwrap_or(SCREENSPACE_Z),
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2019-09-11 00:08:05 +03:00
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];
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2020-02-09 00:52:29 +03:00
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self.num_forks += 1;
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2019-01-25 03:09:29 +03:00
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}
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2019-02-01 03:43:09 +03:00
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pub fn fork_screenspace(&mut self) {
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2019-09-11 00:08:05 +03:00
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self.uniforms.transform = [0.0, 0.0, 1.0];
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self.uniforms.window = [
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self.canvas.window_width as f32,
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self.canvas.window_height as f32,
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2020-02-07 22:20:11 +03:00
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SCREENSPACE_Z,
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2019-09-11 00:08:05 +03:00
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];
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2020-02-09 00:52:29 +03:00
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self.num_forks += 1;
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2019-01-25 03:09:29 +03:00
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}
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2019-02-01 03:43:09 +03:00
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pub fn unfork(&mut self) {
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2019-09-11 00:08:05 +03:00
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self.uniforms = Uniforms::new(&self.canvas);
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2020-02-09 00:52:29 +03:00
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self.num_forks += 1;
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2019-01-25 03:09:29 +03:00
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}
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pub fn clear(&mut self, color: Color) {
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2020-02-11 03:18:31 +03:00
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self.inner.clear(color);
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2019-01-25 03:09:29 +03:00
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}
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2019-01-31 02:10:05 +03:00
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pub fn draw_line(&mut self, color: Color, thickness: Distance, line: &Line) {
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2019-01-25 19:01:08 +03:00
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self.draw_polygon(color, &line.make_polygons(thickness));
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2019-01-25 03:09:29 +03:00
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}
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2019-01-31 02:10:05 +03:00
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pub fn draw_rounded_line(&mut self, color: Color, thickness: Distance, line: &Line) {
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2019-04-12 03:04:59 +03:00
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self.draw_polygons(
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color,
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&vec![
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line.make_polygons(thickness),
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Circle::new(line.pt1(), thickness / 2.0).to_polygon(),
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Circle::new(line.pt2(), thickness / 2.0).to_polygon(),
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],
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);
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2019-01-25 03:09:29 +03:00
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}
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2019-01-31 02:10:05 +03:00
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pub fn draw_arrow(&mut self, color: Color, thickness: Distance, line: &Line) {
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2019-05-29 03:58:47 +03:00
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self.draw_polygon(color, &line.to_polyline().make_arrow(thickness).unwrap());
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2019-01-25 03:09:29 +03:00
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}
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2019-01-25 03:25:06 +03:00
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pub fn draw_circle(&mut self, color: Color, circle: &Circle) {
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2019-02-02 23:54:16 +03:00
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self.draw_polygon(color, &circle.to_polygon());
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2019-01-25 03:25:06 +03:00
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}
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2019-01-25 03:09:29 +03:00
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pub fn draw_polygon(&mut self, color: Color, poly: &Polygon) {
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2020-03-31 01:48:23 +03:00
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let obj = self
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.prerender
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.upload_temporary(vec![(FancyColor::Plain(color), poly)]);
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2019-01-25 21:59:39 +03:00
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self.redraw(&obj);
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2019-01-25 03:25:06 +03:00
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}
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2019-04-12 03:04:59 +03:00
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pub fn draw_polygons(&mut self, color: Color, polygons: &Vec<Polygon>) {
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2020-03-31 01:48:23 +03:00
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let obj = self.prerender.upload_temporary(
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polygons
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.iter()
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.map(|p| (FancyColor::Plain(color), p))
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.collect(),
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);
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2019-01-25 21:24:29 +03:00
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self.redraw(&obj);
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2019-01-25 20:09:55 +03:00
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}
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2019-01-25 21:24:29 +03:00
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pub fn redraw(&mut self, obj: &Drawable) {
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2020-02-11 03:18:31 +03:00
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self.inner
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.redraw(obj, &self.uniforms, &self.prerender.inner);
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2019-01-25 20:27:53 +03:00
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self.num_draw_calls += 1;
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2019-05-17 03:10:22 +03:00
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// println!("{:?}", backtrace::Backtrace::new());
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2019-01-25 20:27:53 +03:00
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}
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2020-02-07 10:08:17 +03:00
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pub fn redraw_at(&mut self, top_left: ScreenPt, obj: &Drawable) {
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2020-03-09 19:40:59 +03:00
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self.fork(Pt2D::new(0.0, 0.0), top_left, 1.0, None);
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2020-02-07 10:08:17 +03:00
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self.redraw(obj);
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self.unfork();
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}
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2020-01-14 03:57:09 +03:00
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// TODO Stateful API :(
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pub fn enable_clipping(&mut self, rect: ScreenRectangle) {
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2020-02-11 03:18:31 +03:00
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self.inner.enable_clipping(rect, self.canvas);
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2020-01-14 03:57:09 +03:00
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}
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pub fn disable_clipping(&mut self) {
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2020-02-11 07:10:58 +03:00
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self.inner.disable_clipping(self.canvas);
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2019-11-24 18:21:21 +03:00
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}
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2019-02-01 10:32:38 +03:00
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// Canvas stuff.
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// The text box covers up what's beneath and eats the cursor (for get_cursor_in_map_space).
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2020-03-09 19:40:59 +03:00
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// TODO Super close to deleting this.
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2020-03-18 21:13:40 +03:00
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pub(crate) fn draw_blocking_text(
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2019-02-01 03:43:09 +03:00
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&mut self,
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2020-02-07 08:39:23 +03:00
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txt: Text,
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2019-02-01 03:43:09 +03:00
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(horiz, vert): (HorizontalAlignment, VerticalAlignment),
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) {
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2020-02-09 01:08:26 +03:00
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let batch = txt.render_g(self);
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2020-02-09 00:52:29 +03:00
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let dims = batch.get_dims();
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2020-03-02 23:02:25 +03:00
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let top_left = self
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.canvas
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.align_window(&self.prerender.assets, dims, horiz, vert);
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2020-02-09 00:52:29 +03:00
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self.canvas
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.mark_covered_area(ScreenRectangle::top_left(top_left, dims));
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let draw = self.upload(batch);
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self.redraw_at(top_left, &draw);
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2019-01-25 03:09:29 +03:00
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}
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2019-02-01 10:32:38 +03:00
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// TODO Rename these draw_nonblocking_text_*
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2020-03-09 19:40:59 +03:00
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// TODO Super close to deleting this.
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2020-02-07 08:39:23 +03:00
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pub fn draw_text_at(&mut self, txt: Text, map_pt: Pt2D) {
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2020-02-09 01:08:26 +03:00
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let batch = txt.render_g(self);
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2020-02-09 00:52:29 +03:00
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let dims = batch.get_dims();
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2019-02-01 10:32:38 +03:00
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let pt = self.canvas.map_to_screen(map_pt);
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2020-02-09 00:52:29 +03:00
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let draw = self.upload(batch);
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self.redraw_at(
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ScreenPt::new(pt.x - (dims.width / 2.0), pt.y - (dims.height / 2.0)),
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&draw,
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2019-04-23 06:23:50 +03:00
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);
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}
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2020-02-07 08:39:23 +03:00
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pub fn draw_mouse_tooltip(&mut self, txt: Text) {
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2020-02-27 22:28:57 +03:00
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// Add some padding
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let pad = 5.0;
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2020-02-09 01:08:26 +03:00
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let txt_batch = txt.render_g(self);
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2020-02-27 22:28:57 +03:00
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let raw_dims = txt_batch.get_dims();
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let dims = ScreenDims::new(raw_dims.width + 2.0 * pad, raw_dims.height + 2.0 * pad);
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2019-12-12 03:08:58 +03:00
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// TODO Maybe also consider the cursor as a valid center
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2019-11-24 18:21:30 +03:00
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let pt = dims.top_left_for_corner(
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2020-02-20 22:24:50 +03:00
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ScreenPt::new(self.canvas.cursor_x, self.canvas.cursor_y + 20.0),
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2019-10-09 21:21:04 +03:00
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&self.canvas,
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);
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2020-02-07 04:13:42 +03:00
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let mut batch = GeomBatch::new();
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2020-02-27 22:28:57 +03:00
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// TODO Outline?
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batch.push(
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Color::BLACK,
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Polygon::rectangle(dims.width, dims.height).translate(pt.x, pt.y),
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);
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batch.add_translated(txt_batch, pt.x + pad, pt.y + pad);
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2020-02-07 22:20:11 +03:00
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// fork_screenspace, but with an even more prominent Z
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self.uniforms.transform = [0.0, 0.0, 1.0];
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self.uniforms.window = [
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self.canvas.window_width as f32,
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self.canvas.window_height as f32,
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TOOLTIP_Z,
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];
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2020-02-09 00:52:29 +03:00
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self.num_forks += 1;
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2020-02-07 22:20:11 +03:00
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// Temporarily disable clipping if needed.
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2020-02-11 03:18:31 +03:00
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let clip = self.inner.take_clip();
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2020-02-07 04:13:42 +03:00
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batch.draw(self);
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self.unfork();
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2020-02-11 03:18:31 +03:00
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self.inner.restore_clip(clip);
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2019-02-01 03:43:09 +03:00
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}
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2019-02-01 10:32:38 +03:00
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2020-02-09 00:52:29 +03:00
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pub fn get_screen_bounds(&self) -> Bounds {
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self.canvas.get_screen_bounds()
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}
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2019-02-01 03:43:09 +03:00
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pub fn screen_to_map(&self, pt: ScreenPt) -> Pt2D {
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self.canvas.screen_to_map(pt)
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}
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2019-02-01 10:32:38 +03:00
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2019-02-01 03:43:09 +03:00
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pub fn get_cursor_in_map_space(&self) -> Option<Pt2D> {
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self.canvas.get_cursor_in_map_space()
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2019-01-25 21:59:39 +03:00
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}
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2019-02-06 01:43:46 +03:00
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pub fn get_num_uploads(&self) -> usize {
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self.prerender.num_uploads.get()
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}
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2019-04-24 01:33:52 +03:00
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pub fn is_screencap(&self) -> bool {
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self.screencap_mode
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}
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pub fn set_screencap_naming_hint(&mut self, hint: String) {
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assert!(self.screencap_mode);
|
|
|
|
assert!(self.naming_hint.is_none());
|
|
|
|
self.naming_hint = Some(hint);
|
|
|
|
}
|
2019-05-03 22:49:27 +03:00
|
|
|
|
2019-08-15 00:32:02 +03:00
|
|
|
pub fn upload(&mut self, batch: GeomBatch) -> Drawable {
|
|
|
|
self.prerender.upload(batch)
|
|
|
|
}
|
2019-11-01 21:45:02 +03:00
|
|
|
|
2019-11-29 09:41:08 +03:00
|
|
|
// Delegation to assets
|
|
|
|
pub fn default_line_height(&self) -> f64 {
|
2020-03-02 23:02:25 +03:00
|
|
|
*self.prerender.assets.default_line_height.borrow()
|
2019-11-29 09:41:08 +03:00
|
|
|
}
|
2019-01-25 03:09:29 +03:00
|
|
|
}
|
2019-05-17 03:10:22 +03:00
|
|
|
|
2019-09-11 19:03:59 +03:00
|
|
|
// TODO Don't expose this directly
|
2020-02-11 03:18:31 +03:00
|
|
|
// TODO Rename or something maybe. This actually owns all the permanent state of everything.
|
2020-02-10 21:01:49 +03:00
|
|
|
pub struct Prerender {
|
2020-02-11 03:18:31 +03:00
|
|
|
pub(crate) inner: PrerenderInnards,
|
2020-02-07 08:39:23 +03:00
|
|
|
pub(crate) assets: Assets,
|
2019-09-11 19:03:59 +03:00
|
|
|
pub(crate) num_uploads: Cell<usize>,
|
|
|
|
}
|
|
|
|
|
2020-02-10 21:01:49 +03:00
|
|
|
impl Prerender {
|
2019-09-11 19:03:59 +03:00
|
|
|
pub fn upload(&self, batch: GeomBatch) -> Drawable {
|
2020-03-31 01:48:23 +03:00
|
|
|
let borrows = batch.list.iter().map(|(c, p)| (c.clone(), p)).collect();
|
2019-09-11 19:03:59 +03:00
|
|
|
self.actually_upload(true, borrows)
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn get_total_bytes_uploaded(&self) -> usize {
|
2020-02-11 03:18:31 +03:00
|
|
|
self.inner.total_bytes_uploaded.get()
|
2019-09-11 19:03:59 +03:00
|
|
|
}
|
|
|
|
|
2020-03-31 01:48:23 +03:00
|
|
|
pub(crate) fn upload_temporary(&self, list: Vec<(FancyColor, &Polygon)>) -> Drawable {
|
2019-09-11 19:03:59 +03:00
|
|
|
self.actually_upload(false, list)
|
|
|
|
}
|
|
|
|
|
2020-03-31 01:48:23 +03:00
|
|
|
fn actually_upload(&self, permanent: bool, list: Vec<(FancyColor, &Polygon)>) -> Drawable {
|
2019-12-22 21:52:41 +03:00
|
|
|
// println!("{:?}", backtrace::Backtrace::new());
|
2019-09-11 19:03:59 +03:00
|
|
|
self.num_uploads.set(self.num_uploads.get() + 1);
|
2020-02-11 03:18:31 +03:00
|
|
|
self.inner.actually_upload(permanent, list)
|
|
|
|
}
|
2019-09-11 19:03:59 +03:00
|
|
|
|
2020-02-11 03:18:31 +03:00
|
|
|
pub fn request_redraw(&self) {
|
|
|
|
self.inner.request_redraw()
|
|
|
|
}
|
2019-09-11 19:03:59 +03:00
|
|
|
}
|