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🎉 Recursive drawing shapes in rust

This commit is contained in:
Alejandro Alonso 2024-11-12 15:56:33 +01:00
parent 132b1800c2
commit b149f96500
7 changed files with 76 additions and 60 deletions
render-wasm/src

View file

@ -1,5 +1,6 @@
use skia_safe as skia;
use skia_safe::gpu::{self, gl::FramebufferInfo, DirectContext};
use uuid::Uuid;
use crate::state::State;
@ -81,34 +82,44 @@ pub(crate) fn render_rect(surface: &mut skia::Surface, rect: skia::Rect, color:
surface.canvas().draw_rect(rect, &paint);
}
pub(crate) fn render_all(state: &mut State) {
for shape in state.shapes.values() {
let r = skia::Rect::new(
shape.selrect.x1,
shape.selrect.y1,
shape.selrect.x2,
shape.selrect.y2,
);
pub(crate) fn render_shape(state: &mut State, id: Uuid) {
let shape = state.shapes.get(&id).unwrap();
let r = skia::Rect::new(
shape.selrect.x1,
shape.selrect.y1,
shape.selrect.x2,
shape.selrect.y2,
);
state.render_state.surface.canvas().save();
// TODO: check if this save and restore are really neaded or not
// state.render_state.surface.canvas().save();
// Check transform-matrix code from common/src/app/common/geom/shapes/transforms.cljc
let mut matrix = skia::Matrix::new_identity();
let (translate_x, translate_y) = shape.translation();
let (scale_x, scale_y) = shape.scale();
let (skew_x, skew_y) = shape.skew();
// Check transform-matrix code from common/src/app/common/geom/shapes/transforms.cljc
let mut matrix = skia::Matrix::new_identity();
let (translate_x, translate_y) = shape.translation();
let (scale_x, scale_y) = shape.scale();
let (skew_x, skew_y) = shape.skew();
matrix.set_all(scale_x, skew_x, translate_x, skew_y, scale_y, translate_y, 0., 0., 1.);
matrix.set_all(scale_x, skew_x, translate_x, skew_y, scale_y, translate_y, 0., 0., 1.);
let mut center = r.center();
matrix.post_translate(center);
center.negate();
matrix.pre_translate(center);
let mut center = r.center();
matrix.post_translate(center);
center.negate();
matrix.pre_translate(center);
state.render_state.surface.canvas().concat(&matrix);
state.render_state.surface.canvas().concat(&matrix);
render_rect(&mut state.render_state.surface, r, skia::Color::RED);
let mut color = skia::Color::RED;;
if skew_x != 0. {
color = skia::Color::BLACK;
}
render_rect(&mut state.render_state.surface, r, color);
state.render_state.surface.canvas().restore();
// state.render_state.surface.canvas().restore();
let shape_ids = shape.shapes.clone();
for shape_id in shape_ids {
render_shape(state, shape_id);
}
}