ComputedTextGeometryComponent.h File Reference

#include <entt/entt.hpp>
#include <vector>
#include "donner/base/Box.h"
#include "donner/base/Vector2.h"
#include "donner/base/Path.h"
#include "donner/svg/text/TextTypes.h"

Include dependency graph for ComputedTextGeometryComponent.h:

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

Classes
struct	donner::svg::components::ComputedTextGeometryComponent
	Cached geometry for text layout and text-derived public API queries. More...
struct	donner::svg::components::ComputedTextGeometryComponent::GlyphGeometry
	Outline geometry for a single rendered glyph. More...
struct	donner::svg::components::ComputedTextGeometryComponent::CharacterGeometry
	Cached geometry for one addressable character. 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.
namespace	donner::svg::components
	Contains the implementation of the Donner ECS,.

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Class Documentation

donner::svg::components::ComputedTextGeometryComponent

struct donner::svg::components::ComputedTextGeometryComponent

Cached geometry for text layout and text-derived public API queries.

Attached to the root <text> entity and populated from the shared text engine. This stores per-glyph outlines and per-character metrics so DOM APIs can answer geometry queries without duplicating text layout logic.

Collaboration diagram for donner::svg::components::ComputedTextGeometryComponent:

Class Members
vector< CharacterGeometry >	characters	Cached character metrics in logical order.
Box2d	emBoxBounds	Union of em-box bounds used for text bbox.
vector< GlyphGeometry >	glyphs	Cached glyph outlines for the text root.
Box2d	inkBounds	Union of glyph ink bounds.
vector< TextRun >	runs	Cached layout runs for renderer reuse.

donner::svg::components::ComputedTextGeometryComponent::GlyphGeometry

struct donner::svg::components::ComputedTextGeometryComponent::GlyphGeometry

Outline geometry for a single rendered glyph.

Collaboration diagram for donner::svg::components::ComputedTextGeometryComponent::GlyphGeometry:

Class Members
Box2d	extent	Ink bounds in text-element local coordinates.
Path	path	Glyph outline in text-element local coordinates.
entity	sourceEntity = entt::null	Span source entity that owns this glyph.

donner::svg::components::ComputedTextGeometryComponent::CharacterGeometry

struct donner::svg::components::ComputedTextGeometryComponent::CharacterGeometry

Cached geometry for one addressable character.

Collaboration diagram for donner::svg::components::ComputedTextGeometryComponent::CharacterGeometry:

Class Members
double	advance = 0.0	Advance magnitude.
Vector2d	endPosition = Vector2d::Zero()	Character end position in local coords.
Box2d	extent = Box2d()	Character ink bounds in local coords.
bool	hasExtent = false	True if extent contains real glyph bounds.
bool	rendered = false	True if any glyph geometry was produced.
double	rotation = 0.0	Rotation in degrees.
entity	sourceEntity = entt::null	Source entity that owns this character.
Vector2d	startPosition = Vector2d::Zero()	Character start position in local coords.