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Insert pasted images as layers in document graph (#1418)

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Changes:

Graph is evaluated on every viewport change
move all navigation logic into the viewport
reduce the number of js roundtrips
add canvas rendering
enable image pasting
various cleanups
Fix cache nodes being reset every evaluation
This commit is contained in:
Dennis Kobert
2023-09-13 17:02:35 +02:00
committed by Keavon Chambers
parent d82f133514
commit 833f41bccb
20 changed files with 202 additions and 226 deletions
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36
node-graph/gstd/src/wasm_application_io.rs
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@@ -28,6 +28,9 @@ use web_sys::{CanvasRenderingContext2d, HtmlCanvasElement};
#[cfg(feature = "wgpu")]
use wgpu_executor::WgpuExecutor;
use base64::Engine;
use glam::DAffine2;
pub struct Canvas(CanvasRenderingContext2d);
#[derive(Debug, Default)]
@@ -301,14 +304,45 @@ async fn render_node<'a: 'input, F: Future<Output = GraphicGroup>>(
let mut render = SvgRender::new();
let render_params = RenderParams::new(ViewMode::Normal, graphene_core::renderer::ImageRenderMode::Base64, None, false);
let output_format = editor.render_config.export_format;
let resolution = footprint.resolution;
match output_format {
ExportFormat::Svg => {
data.render_svg(&mut render, &render_params);
// TODO: reenable once we switch to full node graph
//render.format_svg((0., 0.).into(), (1., 1.).into());
let min = footprint.transform.inverse().transform_point2((0., 0.).into());
let max = footprint.transform.inverse().transform_point2(resolution.as_dvec2());
render.format_svg(min, max);
RenderOutput::Svg(render.svg.to_string())
}
ExportFormat::Canvas => {
data.render_svg(&mut render, &render_params);
// TODO: reenable once we switch to full node graph
let min = footprint.transform.inverse().transform_point2((0., 0.).into());
let max = footprint.transform.inverse().transform_point2(resolution.as_dvec2());
render.format_svg(min, max);
let string = render.svg.to_string();
let array = string.as_bytes();
let canvas = &surface_handle.surface;
canvas.set_width(resolution.x);
canvas.set_height(resolution.y);
let preamble = "data:image/svg+xml;base64,";
let mut base64_string = String::with_capacity(preamble.len() + array.len() * 4);
base64_string.push_str(preamble);
base64::engine::general_purpose::STANDARD.encode_string(array, &mut base64_string);
let image_data = web_sys::HtmlImageElement::new().unwrap();
image_data.set_src(base64_string.as_str());
let context = canvas.get_context("2d").unwrap().unwrap().dyn_into::<CanvasRenderingContext2d>().unwrap();
wasm_bindgen_futures::JsFuture::from(image_data.decode()).await.unwrap();
context.draw_image_with_html_image_element(&image_data, 0.0, 0.0).unwrap();
let frame = SurfaceHandleFrame {
surface_handle,
transform: DAffine2::IDENTITY,
};
RenderOutput::CanvasFrame(frame.into())
}
_ => todo!("Non svg render output"),
}
}