use crate::render_ext::RenderExt; use crate::to_peniko::BlendModeExt; use dyn_any::DynAny; use glam::{DAffine2, DVec2}; use graphene_core::blending::BlendMode; use graphene_core::bounds::BoundingBox; use graphene_core::bounds::RenderBoundingBox; use graphene_core::color::Color; use graphene_core::gradient::GradientStops; use graphene_core::gradient::GradientType; use graphene_core::math::quad::Quad; use graphene_core::raster::BitmapMut; use graphene_core::raster::Image; use graphene_core::raster_types::{CPU, GPU, Raster}; use graphene_core::render_complexity::RenderComplexity; use graphene_core::subpath::Subpath; use graphene_core::table::{Table, TableRow}; use graphene_core::transform::{Footprint, Transform}; use graphene_core::uuid::{NodeId, generate_uuid}; use graphene_core::vector::Vector; use graphene_core::vector::click_target::{ClickTarget, FreePoint}; use graphene_core::vector::style::{Fill, PaintOrder, Stroke, StrokeAlign, ViewMode}; use graphene_core::{Artboard, Graphic}; use kurbo::Affine; use num_traits::Zero; use std::collections::{HashMap, HashSet}; use std::fmt::Write; use std::hash::{DefaultHasher, Hash, Hasher}; use std::ops::Deref; use std::sync::{Arc, LazyLock}; #[cfg(feature = "vello")] use vello::*; #[derive(Clone, Copy, Debug, PartialEq, serde::Serialize, serde::Deserialize)] enum MaskType { Clip, Mask, } impl MaskType { fn to_attribute(self) -> String { match self { Self::Mask => "mask".to_string(), Self::Clip => "clip-path".to_string(), } } fn write_to_defs(self, svg_defs: &mut String, uuid: u64, svg_string: String) { let id = format!("mask-{uuid}"); match self { Self::Clip => write!(svg_defs, r##"{svg_string}"##).unwrap(), Self::Mask => write!(svg_defs, r##"{svg_string}"##).unwrap(), } } } /// Mutable state used whilst rendering to an SVG pub struct SvgRender { pub svg: Vec, pub svg_defs: String, pub transform: DAffine2, pub image_data: Vec<(u64, Image)>, indent: usize, } impl SvgRender { pub fn new() -> Self { Self { svg: Vec::default(), svg_defs: String::new(), transform: DAffine2::IDENTITY, image_data: Vec::new(), indent: 0, } } pub fn indent(&mut self) { self.svg.push("\n".into()); self.svg.push("\t".repeat(self.indent).into()); } /// Add an outer `...` tag with a `viewBox` and the `` pub fn format_svg(&mut self, bounds_min: DVec2, bounds_max: DVec2) { let (x, y) = bounds_min.into(); let (size_x, size_y) = (bounds_max - bounds_min).into(); let defs = &self.svg_defs; let svg_header = format!(r#"{defs}"#,); self.svg.insert(0, svg_header.into()); self.svg.push("".into()); } /// Wraps the SVG with `...`, which allows for rotation pub fn wrap_with_transform(&mut self, transform: DAffine2, size: Option) { let defs = &self.svg_defs; let view_box = size .map(|size| format!("viewBox=\"0 0 {} {}\" width=\"{}\" height=\"{}\"", size.x, size.y, size.x, size.y)) .unwrap_or_default(); let matrix = format_transform_matrix(transform); let transform = if matrix.is_empty() { String::new() } else { format!(r#" transform="{matrix}""#) }; let svg_header = format!(r#"{defs}"#); self.svg.insert(0, svg_header.into()); self.svg.push("".into()); } pub fn leaf_tag(&mut self, name: impl Into, attributes: impl FnOnce(&mut SvgRenderAttrs)) { self.indent(); self.svg.push("<".into()); self.svg.push(name.into()); attributes(&mut SvgRenderAttrs(self)); self.svg.push("/>".into()); } pub fn leaf_node(&mut self, content: impl Into) { self.indent(); self.svg.push(content.into()); } pub fn parent_tag(&mut self, name: impl Into, attributes: impl FnOnce(&mut SvgRenderAttrs), inner: impl FnOnce(&mut Self)) { let name = name.into(); self.indent(); self.svg.push("<".into()); self.svg.push(name.clone()); // Wraps `self` in a newtype (1-tuple) which is then mutated by the `attributes` closure attributes(&mut SvgRenderAttrs(self)); self.svg.push(">".into()); let length = self.svg.len(); self.indent += 1; inner(self); self.indent -= 1; if self.svg.len() != length { self.indent(); self.svg.push("".into()); } else { self.svg.pop(); self.svg.push("/>".into()); } } } impl Default for SvgRender { fn default() -> Self { Self::new() } } #[derive(Clone, Debug, Default)] pub struct RenderContext { #[cfg(feature = "vello")] pub resource_overrides: Vec<(peniko::Image, wgpu::Texture)>, } /// Static state used whilst rendering #[derive(Default, Clone)] pub struct RenderParams { pub view_mode: ViewMode, pub footprint: Footprint, pub thumbnail: bool, /// Don't render the rectangle for an artboard to allow exporting with a transparent background. pub hide_artboards: bool, /// Are we exporting as a standalone SVG? pub for_export: bool, /// Are we generating a mask in this render pass? Used to see if fill should be multiplied with alpha. pub for_mask: bool, /// Are we generating a mask for alignment? Used to prevent unnecessary transforms in masks pub alignment_parent_transform: Option, pub aligned_strokes: bool, pub override_paint_order: bool, } impl RenderParams { pub fn for_clipper(&self) -> Self { Self { for_mask: true, ..*self } } pub fn for_alignment(&self, transform: DAffine2) -> Self { let alignment_parent_transform = Some(transform); Self { alignment_parent_transform, ..*self } } pub fn to_canvas(&self) -> bool { !self.for_export && !self.thumbnail && !self.for_mask } } pub fn format_transform_matrix(transform: DAffine2) -> String { if transform == DAffine2::IDENTITY { return String::new(); } transform.to_cols_array().iter().enumerate().fold("matrix(".to_string(), |val, (i, num)| { let num = if num.abs() < 1_000_000_000. { (num * 1_000_000_000.).round() / 1_000_000_000. } else { *num }; let num = if num.is_zero() { "0".to_string() } else { num.to_string() }; let comma = if i == 5 { "" } else { "," }; val + &(num + comma) }) + ")" } fn max_scale(transform: DAffine2) -> f64 { let sx = transform.x_axis.length_squared(); let sy = transform.y_axis.length_squared(); (sx + sy).sqrt() } pub fn to_transform(transform: DAffine2) -> usvg::Transform { let cols = transform.to_cols_array(); usvg::Transform::from_row(cols[0] as f32, cols[1] as f32, cols[2] as f32, cols[3] as f32, cols[4] as f32, cols[5] as f32) } // TODO: Click targets can be removed from the render output, since the vector data is available in the vector modify data from Monitor nodes. // This will require that the transform for child layers into that layer space be calculated, or it could be returned from the RenderOutput instead of click targets. #[derive(Debug, Default, Clone, PartialEq, DynAny, serde::Serialize, serde::Deserialize)] pub struct RenderMetadata { pub upstream_footprints: HashMap, pub local_transforms: HashMap, pub first_element_source_id: HashMap>, pub click_targets: HashMap>, pub clip_targets: HashSet, } // TODO: Rename to "Graphical" pub trait Render: BoundingBox + RenderComplexity { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams); #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, _render_params: &RenderParams); /// The upstream click targets for each layer are collected during the render so that they do not have to be calculated for each click detection. fn add_upstream_click_targets(&self, _click_targets: &mut Vec) {} // TODO: Store all click targets in a vec which contains the AABB, click target, and path // fn add_click_targets(&self, click_targets: &mut Vec<([DVec2; 2], ClickTarget, Vec)>, current_path: Option) {} /// Recursively iterate over data in the render (including nested layer stacks upstream of a vector node, in the case of a boolean operation) to collect the footprints, click targets, and vector modify. fn collect_metadata(&self, _metadata: &mut RenderMetadata, _footprint: Footprint, _element_id: Option) {} fn contains_artboard(&self) -> bool { false } fn new_ids_from_hash(&mut self, _reference: Option) {} } impl Render for Graphic { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { match self { Graphic::Graphic(table) => table.render_svg(render, render_params), Graphic::Vector(table) => table.render_svg(render, render_params), Graphic::RasterCPU(table) => table.render_svg(render, render_params), Graphic::RasterGPU(_) => (), Graphic::Color(table) => table.render_svg(render, render_params), Graphic::Gradient(table) => table.render_svg(render, render_params), } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, render_params: &RenderParams) { match self { Graphic::Graphic(table) => table.render_to_vello(scene, transform, context, render_params), Graphic::Vector(table) => table.render_to_vello(scene, transform, context, render_params), Graphic::RasterCPU(table) => table.render_to_vello(scene, transform, context, render_params), Graphic::RasterGPU(table) => table.render_to_vello(scene, transform, context, render_params), Graphic::Color(table) => table.render_to_vello(scene, transform, context, render_params), Graphic::Gradient(table) => table.render_to_vello(scene, transform, context, render_params), } } fn collect_metadata(&self, metadata: &mut RenderMetadata, footprint: Footprint, element_id: Option) { if let Some(element_id) = element_id { match self { Graphic::Graphic(_) => { metadata.upstream_footprints.insert(element_id, footprint); } Graphic::Vector(table) => { metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than the first row if let Some(row) = table.iter().next() { metadata.first_element_source_id.insert(element_id, *row.source_node_id); metadata.local_transforms.insert(element_id, *row.transform); } } Graphic::RasterCPU(table) => { metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than the first row if let Some(row) = table.iter().next() { metadata.local_transforms.insert(element_id, *row.transform); } } Graphic::RasterGPU(table) => { metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than the first row if let Some(row) = table.iter().next() { metadata.local_transforms.insert(element_id, *row.transform); } } Graphic::Color(table) => { metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than the first row if let Some(row) = table.iter().next() { metadata.local_transforms.insert(element_id, *row.transform); } } Graphic::Gradient(table) => { metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than the first row if let Some(row) = table.iter().next() { metadata.local_transforms.insert(element_id, *row.transform); } } } } match self { Graphic::Graphic(table) => table.collect_metadata(metadata, footprint, element_id), Graphic::Vector(table) => table.collect_metadata(metadata, footprint, element_id), Graphic::RasterCPU(table) => table.collect_metadata(metadata, footprint, element_id), Graphic::RasterGPU(table) => table.collect_metadata(metadata, footprint, element_id), Graphic::Color(table) => table.collect_metadata(metadata, footprint, element_id), Graphic::Gradient(table) => table.collect_metadata(metadata, footprint, element_id), } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { match self { Graphic::Graphic(table) => table.add_upstream_click_targets(click_targets), Graphic::Vector(table) => table.add_upstream_click_targets(click_targets), Graphic::RasterCPU(table) => table.add_upstream_click_targets(click_targets), Graphic::RasterGPU(table) => table.add_upstream_click_targets(click_targets), Graphic::Color(table) => table.add_upstream_click_targets(click_targets), Graphic::Gradient(table) => table.add_upstream_click_targets(click_targets), } } fn contains_artboard(&self) -> bool { match self { Graphic::Graphic(table) => table.contains_artboard(), Graphic::Vector(table) => table.contains_artboard(), Graphic::RasterCPU(table) => table.contains_artboard(), Graphic::RasterGPU(table) => table.contains_artboard(), Graphic::Color(table) => table.contains_artboard(), Graphic::Gradient(table) => table.contains_artboard(), } } fn new_ids_from_hash(&mut self, reference: Option) { match self { Graphic::Graphic(table) => table.new_ids_from_hash(reference), Graphic::Vector(table) => table.new_ids_from_hash(reference), Graphic::RasterCPU(_) => (), Graphic::RasterGPU(_) => (), Graphic::Color(_) => (), Graphic::Gradient(_) => (), } } } impl Render for Artboard { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { // Rectangle for the artboard if !render_params.hide_artboards { // Background render.leaf_tag("rect", |attributes| { attributes.push("fill", format!("#{}", self.background.to_rgb_hex_srgb_from_gamma())); if self.background.a() < 1. { attributes.push("fill-opacity", ((self.background.a() * 1000.).round() / 1000.).to_string()); } attributes.push("x", self.location.x.min(self.location.x + self.dimensions.x).to_string()); attributes.push("y", self.location.y.min(self.location.y + self.dimensions.y).to_string()); attributes.push("width", self.dimensions.x.abs().to_string()); attributes.push("height", self.dimensions.y.abs().to_string()); }); } // Artwork render.parent_tag( // SVG group tag "g", // Group tag attributes |attributes| { let matrix = format_transform_matrix(self.transform()); if !matrix.is_empty() { attributes.push("transform", matrix); } if self.clip { let id = format!("artboard-{}", generate_uuid()); let selector = format!("url(#{id})"); write!( &mut attributes.0.svg_defs, r##""##, self.dimensions.x, self.dimensions.y, ) .unwrap(); attributes.push("clip-path", selector); } }, // Artwork content |render| { self.content.render_svg(render, render_params); }, ); } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, render_params: &RenderParams) { use vello::peniko; // Render background let color = peniko::Color::new([self.background.r(), self.background.g(), self.background.b(), self.background.a()]); let [a, b] = [self.location.as_dvec2(), self.location.as_dvec2() + self.dimensions.as_dvec2()]; let rect = kurbo::Rect::new(a.x.min(b.x), a.y.min(b.y), a.x.max(b.x), a.y.max(b.y)); scene.push_layer(peniko::Mix::Normal, 1., kurbo::Affine::new(transform.to_cols_array()), &rect); scene.fill(peniko::Fill::NonZero, kurbo::Affine::new(transform.to_cols_array()), color, None, &rect); scene.pop_layer(); if self.clip { let blend_mode = peniko::BlendMode::new(peniko::Mix::Clip, peniko::Compose::SrcOver); scene.push_layer(blend_mode, 1., kurbo::Affine::new(transform.to_cols_array()), &rect); } // Since the content's transform is right multiplied in when rendering the content, we just need to right multiply by the artboard offset here. let child_transform = transform * DAffine2::from_translation(self.location.as_dvec2()); self.content.render_to_vello(scene, child_transform, context, render_params); if self.clip { scene.pop_layer(); } } fn collect_metadata(&self, metadata: &mut RenderMetadata, mut footprint: Footprint, element_id: Option) { if let Some(element_id) = element_id { let subpath = Subpath::new_rect(DVec2::ZERO, self.dimensions.as_dvec2()); metadata.click_targets.insert(element_id, vec![ClickTarget::new_with_subpath(subpath, 0.)]); metadata.upstream_footprints.insert(element_id, footprint); metadata.local_transforms.insert(element_id, DAffine2::from_translation(self.location.as_dvec2())); if self.clip { metadata.clip_targets.insert(element_id); } } footprint.transform *= self.transform(); self.content.collect_metadata(metadata, footprint, None); } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { let subpath_rectangle = Subpath::new_rect(DVec2::ZERO, self.dimensions.as_dvec2()); click_targets.push(ClickTarget::new_with_subpath(subpath_rectangle, 0.)); } fn contains_artboard(&self) -> bool { true } } impl Render for Table { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { for artboard in self.iter() { artboard.element.render_svg(render, render_params); } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, render_params: &RenderParams) { for row in self.iter() { row.element.render_to_vello(scene, transform, context, render_params); } } fn collect_metadata(&self, metadata: &mut RenderMetadata, footprint: Footprint, _element_id: Option) { for row in self.iter() { row.element.collect_metadata(metadata, footprint, *row.source_node_id); } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { for row in self.iter() { row.element.add_upstream_click_targets(click_targets); } } fn contains_artboard(&self) -> bool { self.iter().count() > 0 } } impl Render for Table { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { let mut iter = self.iter().peekable(); let mut mask_state = None; while let Some(row) = iter.next() { render.parent_tag( "g", |attributes| { let matrix = format_transform_matrix(*row.transform); if !matrix.is_empty() { attributes.push("transform", matrix); } let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } let next_clips = iter.peek().is_some_and(|next_row| next_row.element.had_clip_enabled()); if next_clips && mask_state.is_none() { let uuid = generate_uuid(); let mask_type = if row.element.can_reduce_to_clip_path() { MaskType::Clip } else { MaskType::Mask }; mask_state = Some((uuid, mask_type)); let mut svg = SvgRender::new(); row.element.render_svg(&mut svg, &render_params.for_clipper()); write!(&mut attributes.0.svg_defs, r##"{}"##, svg.svg_defs).unwrap(); mask_type.write_to_defs(&mut attributes.0.svg_defs, uuid, svg.svg.to_svg_string()); } else if let Some((uuid, mask_type)) = mask_state { if !next_clips { mask_state = None; } let id = format!("mask-{uuid}"); let selector = format!("url(#{id})"); attributes.push(mask_type.to_attribute(), selector); } }, |render| { row.element.render_svg(render, render_params); }, ); } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, render_params: &RenderParams) { let mut iter = self.iter().peekable(); let mut mask_element_and_transform = None; while let Some(row) = iter.next() { let transform = transform * *row.transform; let alpha_blending = *row.alpha_blending; let mut layer = false; let blend_mode = match render_params.view_mode { ViewMode::Outline => peniko::Mix::Normal, _ => alpha_blending.blend_mode.to_peniko(), }; let mut bounds = RenderBoundingBox::None; let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. || (render_params.view_mode != ViewMode::Outline && alpha_blending.blend_mode != BlendMode::default()) { bounds = row.element.bounding_box(transform, true); if let RenderBoundingBox::Rectangle(bounds) = bounds { scene.push_layer( peniko::BlendMode::new(blend_mode, peniko::Compose::SrcOver), opacity, kurbo::Affine::IDENTITY, &kurbo::Rect::new(bounds[0].x, bounds[0].y, bounds[1].x, bounds[1].y), ); layer = true; } } let next_clips = iter.peek().is_some_and(|next_row| next_row.element.had_clip_enabled()); if next_clips && mask_element_and_transform.is_none() { mask_element_and_transform = Some((row.element, transform)); row.element.render_to_vello(scene, transform, context, render_params); } else if let Some((mask_element, transform_mask)) = mask_element_and_transform { if !next_clips { mask_element_and_transform = None; } if !layer { bounds = row.element.bounding_box(transform, true); } if let RenderBoundingBox::Rectangle(bounds) = bounds { let rect = kurbo::Rect::new(bounds[0].x, bounds[0].y, bounds[1].x, bounds[1].y); scene.push_layer(peniko::Mix::Normal, 1., kurbo::Affine::IDENTITY, &rect); mask_element.render_to_vello(scene, transform_mask, context, &render_params.for_clipper()); scene.push_layer(peniko::BlendMode::new(peniko::Mix::Clip, peniko::Compose::SrcIn), 1., kurbo::Affine::IDENTITY, &rect); } row.element.render_to_vello(scene, transform, context, render_params); if matches!(bounds, RenderBoundingBox::Rectangle(_)) { scene.pop_layer(); scene.pop_layer(); } } else { row.element.render_to_vello(scene, transform, context, render_params); } if layer { scene.pop_layer(); } } } fn collect_metadata(&self, metadata: &mut RenderMetadata, footprint: Footprint, element_id: Option) { for row in self.iter() { if let Some(element_id) = row.source_node_id { let mut footprint = footprint; footprint.transform *= *row.transform; row.element.collect_metadata(metadata, footprint, Some(*element_id)); } } if let Some(element_id) = element_id { let mut all_upstream_click_targets = Vec::new(); for row in self.iter() { let mut new_click_targets = Vec::new(); row.element.add_upstream_click_targets(&mut new_click_targets); for click_target in new_click_targets.iter_mut() { click_target.apply_transform(*row.transform) } all_upstream_click_targets.extend(new_click_targets); } metadata.click_targets.insert(element_id, all_upstream_click_targets); } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { for row in self.iter() { let mut new_click_targets = Vec::new(); row.element.add_upstream_click_targets(&mut new_click_targets); for click_target in new_click_targets.iter_mut() { click_target.apply_transform(*row.transform) } click_targets.extend(new_click_targets); } } fn contains_artboard(&self) -> bool { self.iter().any(|row| row.element.contains_artboard()) } fn new_ids_from_hash(&mut self, _reference: Option) { for row in self.iter_mut() { row.element.new_ids_from_hash(*row.source_node_id); } } } impl Render for Table { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { for row in self.iter() { let multiplied_transform = *row.transform; let vector = &row.element; // Only consider strokes with non-zero weight, since default strokes with zero weight would prevent assigning the correct stroke transform let has_real_stroke = vector.style.stroke().filter(|stroke| stroke.weight() > 0.); let set_stroke_transform = has_real_stroke.map(|stroke| stroke.transform).filter(|transform| transform.matrix2.determinant() != 0.); let applied_stroke_transform = set_stroke_transform.unwrap_or(*row.transform); let applied_stroke_transform = render_params.alignment_parent_transform.unwrap_or(applied_stroke_transform); let element_transform = set_stroke_transform.map(|stroke_transform| multiplied_transform * stroke_transform.inverse()); let element_transform = element_transform.unwrap_or(DAffine2::IDENTITY); let layer_bounds = vector.bounding_box().unwrap_or_default(); let transformed_bounds = vector.bounding_box_with_transform(applied_stroke_transform).unwrap_or_default(); let bounds_matrix = DAffine2::from_scale_angle_translation(layer_bounds[1] - layer_bounds[0], 0., layer_bounds[0]); let transformed_bounds_matrix = element_transform * DAffine2::from_scale_angle_translation(transformed_bounds[1] - transformed_bounds[0], 0., transformed_bounds[0]); let mut path = String::new(); for mut bezpath in row.element.stroke_bezpath_iter() { bezpath.apply_affine(Affine::new(applied_stroke_transform.to_cols_array())); path.push_str(bezpath.to_svg().as_str()); } let mask_type = if vector.style.stroke().map(|x| x.align) == Some(StrokeAlign::Inside) { MaskType::Clip } else { MaskType::Mask }; let path_is_closed = vector.stroke_bezier_paths().all(|path| path.closed()); let can_draw_aligned_stroke = path_is_closed && vector.style.stroke().is_some_and(|stroke| stroke.has_renderable_stroke() && stroke.align.is_not_centered()); let can_use_paint_order = !(row.element.style.fill().is_none() || !row.element.style.fill().is_opaque() || mask_type == MaskType::Clip); let needs_separate_fill = can_draw_aligned_stroke && !can_use_paint_order; let wants_stroke_below = vector.style.stroke().map(|s| s.paint_order) == Some(PaintOrder::StrokeBelow); if needs_separate_fill && !wants_stroke_below { render.leaf_tag("path", |attributes| { attributes.push("d", path.clone()); let matrix = format_transform_matrix(element_transform); if !matrix.is_empty() { attributes.push("transform", matrix); } let mut style = row.element.style.clone(); style.clear_stroke(); let fill_and_stroke = style.render( &mut attributes.0.svg_defs, element_transform, applied_stroke_transform, bounds_matrix, transformed_bounds_matrix, &render_params, ); attributes.push_val(fill_and_stroke); }); } let push_id = needs_separate_fill.then_some({ let id = format!("alignment-{}", generate_uuid()); let mut element = row.element.clone(); element.style.clear_stroke(); element.style.set_fill(Fill::solid(Color::BLACK)); let vector_row = Table::new_from_row(TableRow { element, alpha_blending: *row.alpha_blending, transform: *row.transform, source_node_id: None, }); (id, mask_type, vector_row) }); render.leaf_tag("path", |attributes| { attributes.push("d", path.clone()); let matrix = format_transform_matrix(element_transform); if !matrix.is_empty() { attributes.push("transform", matrix); } let defs = &mut attributes.0.svg_defs; if let Some((ref id, mask_type, ref vector_row)) = push_id { let mut svg = SvgRender::new(); vector_row.render_svg(&mut svg, &render_params.for_alignment(applied_stroke_transform)); let stroke = row.element.style.stroke().unwrap(); let weight = stroke.effective_width() * max_scale(applied_stroke_transform); let quad = Quad::from_box(transformed_bounds).inflate(weight); let (x, y) = quad.top_left().into(); let (width, height) = (quad.bottom_right() - quad.top_left()).into(); write!(defs, r##"{}"##, svg.svg_defs).unwrap(); let rect = format!(r##""##); match mask_type { MaskType::Clip => write!(defs, r##"{}"##, svg.svg.to_svg_string()).unwrap(), MaskType::Mask => write!( defs, r##"{}{}"##, rect, svg.svg.to_svg_string() ) .unwrap(), } } let mut render_params = render_params.clone(); render_params.aligned_strokes = can_draw_aligned_stroke; render_params.override_paint_order = can_draw_aligned_stroke && can_use_paint_order; let mut style = row.element.style.clone(); if needs_separate_fill { style.clear_fill(); } let fill_and_stroke = style.render(defs, element_transform, applied_stroke_transform, bounds_matrix, transformed_bounds_matrix, &render_params); if let Some((id, mask_type, _)) = push_id { let selector = format!("url(#{id})"); attributes.push(mask_type.to_attribute(), selector); } attributes.push_val(fill_and_stroke); let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } }); // When splitting passes and stroke is below, draw the fill after the stroke. if needs_separate_fill && wants_stroke_below { render.leaf_tag("path", |attributes| { attributes.push("d", path); let matrix = format_transform_matrix(element_transform); if !matrix.is_empty() { attributes.push("transform", matrix); } let mut style = row.element.style.clone(); style.clear_stroke(); let fill_and_stroke = style.render( &mut attributes.0.svg_defs, element_transform, applied_stroke_transform, bounds_matrix, transformed_bounds_matrix, &render_params, ); attributes.push_val(fill_and_stroke); }); } } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, parent_transform: DAffine2, _context: &mut RenderContext, render_params: &RenderParams) { use graphene_core::consts::{LAYER_OUTLINE_STROKE_COLOR, LAYER_OUTLINE_STROKE_WEIGHT}; use graphene_core::vector::style::{GradientType, StrokeCap, StrokeJoin}; use vello::kurbo::{Cap, Join}; use vello::peniko; for row in self.iter() { let multiplied_transform = parent_transform * *row.transform; let has_real_stroke = row.element.style.stroke().filter(|stroke| stroke.weight() > 0.); let set_stroke_transform = has_real_stroke.map(|stroke| stroke.transform).filter(|transform| transform.matrix2.determinant() != 0.); let applied_stroke_transform = set_stroke_transform.unwrap_or(multiplied_transform); let applied_stroke_transform = render_params.alignment_parent_transform.unwrap_or(applied_stroke_transform); let element_transform = set_stroke_transform.map(|stroke_transform| multiplied_transform * stroke_transform.inverse()); let element_transform = element_transform.unwrap_or(DAffine2::IDENTITY); let layer_bounds = row.element.bounding_box().unwrap_or_default(); let to_point = |p: DVec2| kurbo::Point::new(p.x, p.y); let mut path = kurbo::BezPath::new(); for mut bezpath in row.element.stroke_bezpath_iter() { bezpath.apply_affine(Affine::new(applied_stroke_transform.to_cols_array())); for element in bezpath { path.push(element); } } // If we're using opacity or a blend mode, we need to push a layer let blend_mode = match render_params.view_mode { ViewMode::Outline => peniko::Mix::Normal, _ => row.alpha_blending.blend_mode.to_peniko(), }; let mut layer = false; let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. || row.alpha_blending.blend_mode != BlendMode::default() { layer = true; let weight = row.element.style.stroke().unwrap().effective_width(); let quad = Quad::from_box(layer_bounds).inflate(weight * max_scale(applied_stroke_transform)); let layer_bounds = quad.bounding_box(); scene.push_layer( peniko::BlendMode::new(blend_mode, peniko::Compose::SrcOver), opacity, kurbo::Affine::new(multiplied_transform.to_cols_array()), &kurbo::Rect::new(layer_bounds[0].x, layer_bounds[0].y, layer_bounds[1].x, layer_bounds[1].y), ); } let can_draw_aligned_stroke = row.element.style.stroke().is_some_and(|stroke| stroke.has_renderable_stroke() && stroke.align.is_not_centered()) && row.element.stroke_bezier_paths().all(|path| path.closed()); let use_layer = can_draw_aligned_stroke; let wants_stroke_below = row.element.style.stroke().is_some_and(|s| s.paint_order == graphene_core::vector::style::PaintOrder::StrokeBelow); // Closures to avoid duplicated fill/stroke drawing logic let do_fill = |scene: &mut Scene| match row.element.style.fill() { Fill::Solid(color) => { let fill = peniko::Brush::Solid(peniko::Color::new([color.r(), color.g(), color.b(), color.a()])); scene.fill(peniko::Fill::NonZero, kurbo::Affine::new(element_transform.to_cols_array()), &fill, None, &path); } Fill::Gradient(gradient) => { let mut stops = peniko::ColorStops::new(); for &(offset, color) in &gradient.stops { stops.push(peniko::ColorStop { offset: offset as f32, color: peniko::color::DynamicColor::from_alpha_color(peniko::Color::new([color.r(), color.g(), color.b(), color.a()])), }); } let bounds = row.element.nonzero_bounding_box(); let bound_transform = DAffine2::from_scale_angle_translation(bounds[1] - bounds[0], 0., bounds[0]); let inverse_parent_transform = if parent_transform.matrix2.determinant() != 0. { parent_transform.inverse() } else { Default::default() }; let mod_points = inverse_parent_transform * multiplied_transform * bound_transform; let start = mod_points.transform_point2(gradient.start); let end = mod_points.transform_point2(gradient.end); let fill = peniko::Brush::Gradient(peniko::Gradient { kind: match gradient.gradient_type { GradientType::Linear => peniko::GradientKind::Linear { start: to_point(start), end: to_point(end), }, GradientType::Radial => { let radius = start.distance(end); peniko::GradientKind::Radial { start_center: to_point(start), start_radius: 0., end_center: to_point(start), end_radius: radius as f32, } } }, stops, ..Default::default() }); let inverse_element_transform = if element_transform.matrix2.determinant() != 0. { element_transform.inverse() } else { Default::default() }; let brush_transform = kurbo::Affine::new((inverse_element_transform * parent_transform).to_cols_array()); scene.fill(peniko::Fill::NonZero, kurbo::Affine::new(element_transform.to_cols_array()), &fill, Some(brush_transform), &path); } Fill::None => {} }; let do_stroke = |scene: &mut Scene, width_scale: f64| { if let Some(stroke) = row.element.style.stroke() { let color = match stroke.color { Some(color) => peniko::Color::new([color.r(), color.g(), color.b(), color.a()]), None => peniko::Color::TRANSPARENT, }; let cap = match stroke.cap { StrokeCap::Butt => Cap::Butt, StrokeCap::Round => Cap::Round, StrokeCap::Square => Cap::Square, }; let join = match stroke.join { StrokeJoin::Miter => Join::Miter, StrokeJoin::Bevel => Join::Bevel, StrokeJoin::Round => Join::Round, }; let stroke = kurbo::Stroke { width: stroke.weight * width_scale, miter_limit: stroke.join_miter_limit, join, start_cap: cap, end_cap: cap, dash_pattern: stroke.dash_lengths.into(), dash_offset: stroke.dash_offset, }; if stroke.width > 0. { scene.stroke(&stroke, kurbo::Affine::new(element_transform.to_cols_array()), color, None, &path); } } }; // Render the path match render_params.view_mode { ViewMode::Outline => { let outline_stroke = kurbo::Stroke { width: LAYER_OUTLINE_STROKE_WEIGHT, miter_limit: 4., join: Join::Miter, start_cap: Cap::Butt, end_cap: Cap::Butt, dash_pattern: Default::default(), dash_offset: 0., }; let outline_color = peniko::Color::new([ LAYER_OUTLINE_STROKE_COLOR.r(), LAYER_OUTLINE_STROKE_COLOR.g(), LAYER_OUTLINE_STROKE_COLOR.b(), LAYER_OUTLINE_STROKE_COLOR.a(), ]); scene.stroke(&outline_stroke, kurbo::Affine::new(element_transform.to_cols_array()), outline_color, None, &path); } _ => { if use_layer { let mut element = row.element.clone(); element.style.clear_stroke(); element.style.set_fill(Fill::solid(Color::BLACK)); let vector_table = Table::new_from_row(TableRow { element, alpha_blending: *row.alpha_blending, transform: *row.transform, source_node_id: None, }); let bounds = row.element.bounding_box_with_transform(multiplied_transform).unwrap_or(layer_bounds); let weight = row.element.style.stroke().unwrap().effective_width(); let quad = Quad::from_box(bounds).inflate(weight * max_scale(applied_stroke_transform)); let bounds = quad.bounding_box(); let rect = kurbo::Rect::new(bounds[0].x, bounds[0].y, bounds[1].x, bounds[1].y); let compose = if row.element.style.stroke().is_some_and(|x| x.align == StrokeAlign::Outside) { peniko::Compose::SrcOut } else { peniko::Compose::SrcIn }; if wants_stroke_below { scene.push_layer(peniko::Mix::Normal, 1., kurbo::Affine::IDENTITY, &rect); vector_table.render_to_vello(scene, parent_transform, _context, &render_params.for_alignment(applied_stroke_transform)); scene.push_layer(peniko::BlendMode::new(peniko::Mix::Clip, compose), 1., kurbo::Affine::IDENTITY, &rect); do_stroke(scene, 2.); scene.pop_layer(); scene.pop_layer(); do_fill(scene); } else { // Fill first (unclipped), then stroke (clipped) above do_fill(scene); scene.push_layer(peniko::Mix::Normal, 1., kurbo::Affine::IDENTITY, &rect); vector_table.render_to_vello(scene, parent_transform, _context, &render_params.for_alignment(applied_stroke_transform)); scene.push_layer(peniko::BlendMode::new(peniko::Mix::Clip, compose), 1., kurbo::Affine::IDENTITY, &rect); do_stroke(scene, 2.); scene.pop_layer(); scene.pop_layer(); } } else { // Non-aligned strokes or open paths: default order behavior enum Op { Fill, Stroke, } let order = match row.element.style.stroke().is_some_and(|stroke| !stroke.paint_order.is_default()) { true => [Op::Stroke, Op::Fill], false => [Op::Fill, Op::Stroke], // Default }; for operation in order { match operation { Op::Fill => do_fill(scene), Op::Stroke => do_stroke(scene, 1.), } } } } } // If we pushed a layer for opacity or a blend mode, we need to pop it if layer { scene.pop_layer(); } } } fn collect_metadata(&self, metadata: &mut RenderMetadata, mut footprint: Footprint, element_id: Option) { for row in self.iter() { let transform = *row.transform; let vector = row.element; if let Some(element_id) = element_id { let stroke_width = vector.style.stroke().as_ref().map_or(0., Stroke::effective_width); let filled = vector.style.fill() != &Fill::None; let fill = |mut subpath: Subpath<_>| { if filled { subpath.set_closed(true); } subpath }; // For free-floating anchors, we need to add a click target for each let single_anchors_targets = vector.point_domain.ids().iter().filter_map(|&point_id| { if vector.connected_count(point_id) == 0 { let anchor = vector.point_domain.position_from_id(point_id).unwrap_or_default(); let point = FreePoint::new(point_id, anchor); Some(ClickTarget::new_with_free_point(point)) } else { None } }); let click_targets = vector .stroke_bezier_paths() .map(fill) .map(|subpath| ClickTarget::new_with_subpath(subpath, stroke_width)) .chain(single_anchors_targets.into_iter()) .collect::>(); metadata.click_targets.entry(element_id).or_insert(click_targets); } if let Some(upstream_nested_layers) = &vector.upstream_nested_layers { footprint.transform *= transform; upstream_nested_layers.collect_metadata(metadata, footprint, None); } } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { for row in self.iter() { let stroke_width = row.element.style.stroke().as_ref().map_or(0., Stroke::effective_width); let filled = row.element.style.fill() != &Fill::None; let fill = |mut subpath: Subpath<_>| { if filled { subpath.set_closed(true); } subpath }; click_targets.extend(row.element.stroke_bezier_paths().map(fill).map(|subpath| { let mut click_target = ClickTarget::new_with_subpath(subpath, stroke_width); click_target.apply_transform(*row.transform); click_target })); // For free-floating anchors, we need to add a click target for each let single_anchors_targets = row.element.point_domain.ids().iter().filter_map(|&point_id| { if row.element.connected_count(point_id) > 0 { return None; } let anchor = row.element.point_domain.position_from_id(point_id).unwrap_or_default(); let point = FreePoint::new(point_id, anchor); let mut click_target = ClickTarget::new_with_free_point(point); click_target.apply_transform(*row.transform); Some(click_target) }); click_targets.extend(single_anchors_targets); } } fn new_ids_from_hash(&mut self, reference: Option) { for row in self.iter_mut() { row.element.vector_new_ids_from_hash(reference.map(|id| id.0).unwrap_or_default()); } } } impl Render for Table> { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { for row in self.iter() { let image = row.element; let transform = *row.transform; if image.data.is_empty() { continue; } if render_params.to_canvas() { let id = row.source_node_id.map(|x| x.0).unwrap_or_else(|| { let mut state = DefaultHasher::new(); image.data().hash(&mut state); state.finish() }); if !render.image_data.iter().any(|(old_id, _)| *old_id == id) { let mut image = image.data().clone(); image.map_pixels(|p| p.to_unassociated_alpha()); render.image_data.push((id, image)); } render.parent_tag( "foreignObject", |attributes| { let mut transform_values = transform.to_scale_angle_translation(); let size = DVec2::new(image.width as f64, image.height as f64); transform_values.0 /= size; let matrix = DAffine2::from_scale_angle_translation(transform_values.0, transform_values.1, transform_values.2); let matrix = format_transform_matrix(matrix); if !matrix.is_empty() { attributes.push("transform", matrix); } attributes.push("width", size.x.to_string()); attributes.push("height", size.y.to_string()); let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } }, |render| { render.leaf_tag( "img", // Must be a self-closing (void element) tag, so we can't use `div` or `span`, for example |attributes| { attributes.push("data-canvas-placeholder", id.to_string()); }, ) }, ); } else { let base64_string = image.base64_string.clone().unwrap_or_else(|| { use base64::Engine; let output = image.to_png(); let preamble = "data:image/png;base64,"; let mut base64_string = String::with_capacity(preamble.len() + output.len() * 4); base64_string.push_str(preamble); base64::engine::general_purpose::STANDARD.encode_string(output, &mut base64_string); base64_string }); render.leaf_tag("image", |attributes| { attributes.push("width", "1"); attributes.push("height", "1"); attributes.push("preserveAspectRatio", "none"); attributes.push("href", base64_string); let matrix = format_transform_matrix(transform); if !matrix.is_empty() { attributes.push("transform", matrix); } let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } }); } } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, _: &mut RenderContext, render_params: &RenderParams) { use vello::peniko; for row in self.iter() { let image = &row.element; if image.data.is_empty() { continue; } let alpha_blending = *row.alpha_blending; let blend_mode = alpha_blending.blend_mode.to_peniko(); let opacity = alpha_blending.opacity(render_params.for_mask); let mut layer = false; if opacity < 1. || alpha_blending.blend_mode != BlendMode::default() { if let RenderBoundingBox::Rectangle(bounds) = self.bounding_box(transform, false) { let blending = peniko::BlendMode::new(blend_mode, peniko::Compose::SrcOver); let rect = kurbo::Rect::new(bounds[0].x, bounds[0].y, bounds[1].x, bounds[1].y); scene.push_layer(blending, opacity, kurbo::Affine::IDENTITY, &rect); layer = true; } } let image = peniko::Image::new(image.to_flat_u8().0.into(), peniko::ImageFormat::Rgba8, image.width, image.height).with_extend(peniko::Extend::Repeat); let image_transform = transform * *row.transform * DAffine2::from_scale(1. / DVec2::new(image.width as f64, image.height as f64)); scene.draw_image(&image, kurbo::Affine::new(image_transform.to_cols_array())); if layer { scene.pop_layer(); } } } fn collect_metadata(&self, metadata: &mut RenderMetadata, footprint: Footprint, element_id: Option) { let Some(element_id) = element_id else { return }; let subpath = Subpath::new_rect(DVec2::ZERO, DVec2::ONE); metadata.click_targets.insert(element_id, vec![ClickTarget::new_with_subpath(subpath, 0.)]); metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than one row of the raster table if let Some(raster) = self.iter().next() { metadata.local_transforms.insert(element_id, *raster.transform); } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { let subpath = Subpath::new_rect(DVec2::ZERO, DVec2::ONE); click_targets.push(ClickTarget::new_with_subpath(subpath, 0.)); } } const LAZY_ARC_VEC_ZERO_U8: LazyLock>> = LazyLock::new(|| Arc::new(Vec::new())); impl Render for Table> { fn render_svg(&self, _render: &mut SvgRender, _render_params: &RenderParams) { log::warn!("tried to render texture as an svg"); } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, transform: DAffine2, context: &mut RenderContext, _render_params: &RenderParams) { use vello::peniko; for row in self.iter() { let blend_mode = *row.alpha_blending; let mut layer = false; if blend_mode != Default::default() { if let RenderBoundingBox::Rectangle(bounds) = self.bounding_box(transform, true) { let blending = peniko::BlendMode::new(blend_mode.blend_mode.to_peniko(), peniko::Compose::SrcOver); let rect = kurbo::Rect::new(bounds[0].x, bounds[0].y, bounds[1].x, bounds[1].y); scene.push_layer(blending, blend_mode.opacity, kurbo::Affine::IDENTITY, &rect); layer = true; } } let image = peniko::Image::new( peniko::Blob::new(LAZY_ARC_VEC_ZERO_U8.deref().clone()), peniko::ImageFormat::Rgba8, row.element.data().width(), row.element.data().height(), ) .with_extend(peniko::Extend::Repeat); let image_transform = transform * *row.transform * DAffine2::from_scale(1. / DVec2::new(image.width as f64, image.height as f64)); scene.draw_image(&image, kurbo::Affine::new(image_transform.to_cols_array())); context.resource_overrides.push((image, row.element.data().clone())); if layer { scene.pop_layer() } } } fn collect_metadata(&self, metadata: &mut RenderMetadata, footprint: Footprint, element_id: Option) { let Some(element_id) = element_id else { return }; let subpath = Subpath::new_rect(DVec2::ZERO, DVec2::ONE); metadata.click_targets.insert(element_id, vec![ClickTarget::new_with_subpath(subpath, 0.)]); metadata.upstream_footprints.insert(element_id, footprint); // TODO: Find a way to handle more than one row of the raster table if let Some(raster) = self.iter().next() { metadata.local_transforms.insert(element_id, *raster.transform); } } fn add_upstream_click_targets(&self, click_targets: &mut Vec) { let subpath = Subpath::new_rect(DVec2::ZERO, DVec2::ONE); click_targets.push(ClickTarget::new_with_subpath(subpath, 0.)); } } impl Render for Table { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { for row in self.iter() { render.leaf_tag("rect", |attributes| { attributes.push("width", render_params.footprint.resolution.x.to_string()); attributes.push("height", render_params.footprint.resolution.y.to_string()); let matrix = format_transform_matrix(render_params.footprint.transform.inverse()); if !matrix.is_empty() { attributes.push("transform", matrix); } let color = row.element; attributes.push("fill", format!("#{}", color.to_rgb_hex_srgb_from_gamma())); if color.a() < 1. { attributes.push("fill-opacity", ((color.a() * 1000.).round() / 1000.).to_string()); } let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } }); } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, parent_transform: DAffine2, _context: &mut RenderContext, render_params: &RenderParams) { use vello::peniko; for row in self.iter() { let alpha_blending = *row.alpha_blending; let blend_mode = alpha_blending.blend_mode.to_peniko(); let opacity = alpha_blending.opacity(render_params.for_mask); let transform = parent_transform * render_params.footprint.transform.inverse(); let color = row.element; let vello_color = peniko::Color::new([color.r(), color.g(), color.b(), color.a()]); let rect = kurbo::Rect::from_origin_size( kurbo::Point::ZERO, kurbo::Size::new(render_params.footprint.resolution.x as f64, render_params.footprint.resolution.y as f64), ); let mut layer = false; if opacity < 1. || alpha_blending.blend_mode != BlendMode::default() { let blending = peniko::BlendMode::new(blend_mode, peniko::Compose::SrcOver); scene.push_layer(blending, opacity, kurbo::Affine::IDENTITY, &rect); layer = true; } scene.fill(peniko::Fill::NonZero, kurbo::Affine::new(transform.to_cols_array()), vello_color, None, &rect); if layer { scene.pop_layer(); } } } } impl Render for Table { fn render_svg(&self, render: &mut SvgRender, render_params: &RenderParams) { for row in self.iter() { render.leaf_tag("rect", |attributes| { attributes.push("width", render_params.footprint.resolution.x.to_string()); attributes.push("height", render_params.footprint.resolution.y.to_string()); let matrix = format_transform_matrix(render_params.footprint.transform.inverse()); if !matrix.is_empty() { attributes.push("transform", matrix); } let mut stop_string = String::new(); for (position, color) in row.element.0.iter() { let _ = write!(stop_string, r##""); } let gradient_transform = render_params.footprint.transform * *row.transform; let gradient_transform_matrix = format_transform_matrix(gradient_transform); let gradient_transform_attribute = if gradient_transform_matrix.is_empty() { String::new() } else { format!(r#" gradientTransform="{gradient_transform_matrix}""#) }; let gradient_id = generate_uuid(); let start = DVec2::ZERO; let end = DVec2::X; match GradientType::Radial { GradientType::Linear => { let (x1, y1) = (start.x, start.y); let (x2, y2) = (end.x, end.y); let _ = write!( &mut attributes.0.svg_defs, r#"{stop_string}"# ); } GradientType::Radial => { let (cx, cy) = (start.x, start.y); let r = start.distance(end); let _ = write!( &mut attributes.0.svg_defs, r#"{stop_string}"# ); } } attributes.push("fill", format!("url('#{gradient_id}')")); let opacity = row.alpha_blending.opacity(render_params.for_mask); if opacity < 1. { attributes.push("opacity", opacity.to_string()); } if row.alpha_blending.blend_mode != BlendMode::default() { attributes.push("style", row.alpha_blending.blend_mode.render()); } }); } } #[cfg(feature = "vello")] fn render_to_vello(&self, scene: &mut Scene, parent_transform: DAffine2, _context: &mut RenderContext, render_params: &RenderParams) { use vello::peniko; for row in self.iter() { let alpha_blending = *row.alpha_blending; let blend_mode = alpha_blending.blend_mode.to_peniko(); let opacity = alpha_blending.opacity(render_params.for_mask); let transform = parent_transform * render_params.footprint.transform.inverse(); let color = row.element.0.first().map(|stop| stop.1).unwrap_or(Color::MAGENTA); let vello_color = peniko::Color::new([color.r(), color.g(), color.b(), color.a()]); let rect = kurbo::Rect::from_origin_size( kurbo::Point::ZERO, kurbo::Size::new(render_params.footprint.resolution.x as f64, render_params.footprint.resolution.y as f64), ); let mut layer = false; if opacity < 1. || alpha_blending.blend_mode != BlendMode::default() { let blending = peniko::BlendMode::new(blend_mode, peniko::Compose::SrcOver); scene.push_layer(blending, opacity, kurbo::Affine::IDENTITY, &rect); layer = true; } scene.fill(peniko::Fill::NonZero, kurbo::Affine::new(transform.to_cols_array()), vello_color, None, &rect); if layer { scene.pop_layer(); } } } } #[derive(Debug, Clone, PartialEq, Eq)] pub enum SvgSegment { Slice(&'static str), String(String), } impl From for SvgSegment { fn from(value: String) -> Self { Self::String(value) } } impl From<&'static str> for SvgSegment { fn from(value: &'static str) -> Self { Self::Slice(value) } } pub trait RenderSvgSegmentList { fn to_svg_string(&self) -> String; } impl RenderSvgSegmentList for Vec { fn to_svg_string(&self) -> String { let mut result = String::new(); for segment in self.iter() { result.push_str(match segment { SvgSegment::Slice(x) => x, SvgSegment::String(x) => x, }); } result } } pub struct SvgRenderAttrs<'a>(&'a mut SvgRender); impl SvgRenderAttrs<'_> { pub fn push_complex(&mut self, name: impl Into, value: impl FnOnce(&mut SvgRender)) { self.0.svg.push(" ".into()); self.0.svg.push(name.into()); self.0.svg.push("=\"".into()); value(self.0); self.0.svg.push("\"".into()); } pub fn push(&mut self, name: impl Into, value: impl Into) { self.push_complex(name, move |renderer| renderer.svg.push(value.into())); } pub fn push_val(&mut self, value: impl Into) { self.0.svg.push(value.into()); } }