RendererInterface.h File Reference

#include <cstddef>
#include <optional>
#include <span>
#include <vector>
#include "donner/base/Box.h"
#include "donner/base/EcsRegistry_fwd.h"
#include "donner/base/FillRule.h"
#include "donner/base/Path.h"
#include "donner/base/RcString.h"
#include "donner/base/RelativeLengthMetrics.h"
#include "donner/base/SmallVector.h"
#include "donner/base/Transform.h"
#include "donner/css/Color.h"
#include "donner/css/FontFace.h"
#include "donner/svg/components/RenderingInstanceComponent.h"
#include "donner/svg/components/filter/FilterEffect.h"
#include "donner/svg/components/filter/FilterGraph.h"
#include "donner/svg/components/text/ComputedTextComponent.h"
#include "donner/svg/core/DominantBaseline.h"
#include "donner/svg/core/LengthAdjust.h"
#include "donner/svg/core/MixBlendMode.h"
#include "donner/svg/core/TextAnchor.h"
#include "donner/svg/core/TextDecoration.h"
#include "donner/svg/core/WritingMode.h"
#include "donner/svg/renderer/StrokeParams.h"
#include "donner/svg/resources/ImageResource.h"

Include dependency graph for RendererInterface.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	donner::svg::RenderViewport
	Describes the viewport for a render pass. More...
struct	donner::svg::RendererBitmap
	CPU-readable bitmap produced by a renderer snapshot. More...
struct	donner::svg::PathShape
	Represents a resolved path along with its fill rule, transform, and layer index for boolean ops. More...
struct	donner::svg::PaintParams
	Paint state derived from resolved style for the current node. More...
struct	donner::svg::ResolvedClip
	Clip stack entry combining rectangles, paths, and optional masks. More...
struct	donner::svg::ImageParams
	Parameters describing how an image should be drawn. More...
struct	donner::svg::TextParams
	Parameters describing how text is drawn and outlined. More...
class	donner::svg::RendererInterface
	Backend-agnostic rendering interface consumed by RendererDriver during document traversal. More...

Namespaces
namespace	donner
	Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css.
namespace	donner::svg
	Donner SVG library, which can load, manipulate and render SVG files.

Enumerations
enum class	donner::svg::AlphaType : uint8_t {   donner::svg::Premultiplied ,   donner::svg::Unpremultiplied }
	Alpha channel interpretation for pixel data. More...

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Class Documentation

donner::svg::RenderViewport

struct donner::svg::RenderViewport

Describes the viewport for a render pass.

Collaboration diagram for donner::svg::RenderViewport:

Class Members
double	devicePixelRatio = 1.0	Device pixel ratio used to map logical coordinates to device pixels.
Vector2d	size = Vector2d::Zero()	Logical size in CSS/SVG units after layout.

donner::svg::PathShape

struct donner::svg::PathShape

Represents a resolved path along with its fill rule, transform, and layer index for boolean ops.

Collaboration diagram for donner::svg::PathShape:

Class Members
FillRule	fillRule = FillRule::NonZero
int	layer = 0	Layer index for boolean combination: paths on the same layer are unioned, layers are intersected.
Transform2d	parentFromEntity	Transform from clip path child to the clip path's coordinate system.
Path	path
EntityHandle	sourceEntity	Source entity this path was derived from. Set by the driver at the drawPath call site (RendererDriver::traverseRange). Backends that cache per-entity state key off this (see GeodePathCacheComponent). A null EntityHandle (the default) means "no associated entity" — non-driver callers (overlay drawing, test harnesses) leave it null and backends fall back to the un-cached path.

donner::svg::PaintParams

struct donner::svg::PaintParams

Paint state derived from resolved style for the current node.

Collaboration diagram for donner::svg::PaintParams:

Class Members
Color	currentColor = css::Color(css::RGBA())	CurrentColor value for paint server resolution.
ResolvedPaintServer	fill = PaintServer::None{}
double	fillOpacity = 1.0
double	opacity = 1.0	Multiplicative opacity applied to all drawing.
ResolvedPaintServer	stroke = PaintServer::None{}
double	strokeOpacity = 1.0
StrokeParams	strokeParams
Box2d	viewBox	View box used for unit resolution and gradient coordinate conversion.

donner::svg::ImageParams

struct donner::svg::ImageParams

Parameters describing how an image should be drawn.

Collaboration diagram for donner::svg::ImageParams:

Class Members
bool	imageRenderingPixelated = false	Whether to favor nearest-neighbor sampling for pixelated rendering.
double	opacity = 1.0
Box2d	targetRect	Destination rectangle in device-independent units.

donner::svg::TextParams

struct donner::svg::TextParams

Parameters describing how text is drawn and outlined.

Collaboration diagram for donner::svg::TextParams:

Class Members
DominantBaseline	dominantBaseline = DominantBaseline::Auto
Color	fillColor = css::Color(css::RGBA())
span< const FontFace >	fontFaces	@font-face declarations for custom font resolution.
SmallVector< RcString, 1 >	fontFamilies
FontMetrics	fontMetrics
Lengthd	fontSize
LengthAdjust	lengthAdjust = LengthAdjust::Default
double	letterSpacingPx = 0.0	Extra spacing added after each character (CSS letter-spacing). 0 = normal.
double	opacity = 1.0
Color	strokeColor = css::Color(css::RGBA())
StrokeParams	strokeParams
TextAnchor	textAnchor = TextAnchor::Start
TextDecoration	textDecoration = TextDecoration::None
optional< Lengthd >	textLength	If set, stretches or compresses text to fill the given length.
entity	textRootEntity = entt::null	Entity of the text root element, for cached layout lookup. entt::null if unknown.
Box2d	viewBox
double	wordSpacingPx = 0.0	Extra spacing added after each word/space character (CSS word-spacing). 0 = normal.
WritingMode	writingMode = WritingMode::HorizontalTb	CSS writing-mode for this text element. Controls horizontal vs vertical text flow.