TextTypes.h File Reference

#include <optional>
#include <vector>
#include "donner/svg/resources/FontManager.h"

Include dependency graph for TextTypes.h:

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

Classes
struct	donner::svg::ResolvedTextFont
	Resolved face and used font size for layout or declaring-element decoration metrics. More...
struct	donner::svg::TextGlyph
	A single positioned glyph in a laid-out text run. More...
struct	donner::svg::TextRun
	A run of positioned glyphs sharing the same font. 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.

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Class Documentation

donner::svg::ResolvedTextFont

struct donner::svg::ResolvedTextFont

Resolved face and used font size for layout or declaring-element decoration metrics.

Class Members
FontHandle	font
float	usedSizePx = 0.0f

donner::svg::TextGlyph

struct donner::svg::TextGlyph

A single positioned glyph in a laid-out text run.

Produced by the text engine for simple and full shaping backends.

Class Members
uint32_t	cluster = 0	Byte offset into the span text for the glyph's source cluster. Byte offset of the SVG positioning group; absent uses the source cluster.
float	fontSizeScale = 1.0f	Per-glyph font size multiplier (< 1.0 for small-caps).
int	glyphIndex = 0	Glyph index (backend-specific: stbtt or HarfBuzz).
optional< uint32_t >	positioningCluster
double	rotateDegrees = 0	Per-glyph rotation in degrees.
float	stretchScaleX = 1.0f	Additional X-axis glyph stretch from lengthAdjust.
float	stretchScaleY = 1.0f	Additional Y-axis glyph stretch from lengthAdjust.
double	xAdvance = 0	Horizontal advance to next glyph.
double	xKern = 0	Kerning adjustment applied before this glyph (for path layout).
double	xPosition = 0	Absolute X position for this glyph.
double	yAdvance = 0	Vertical advance (used in vertical writing modes).
double	yPosition = 0	Absolute Y baseline position.

donner::svg::TextRun

struct donner::svg::TextRun

A run of positioned glyphs sharing the same font.

Class Members
FontHandle	font	Font handle for this run.
vector< TextGlyph >	glyphs	Positioned glyphs.
bool	onPath = false	True if glyphs are positioned along a textPath.
bool	textLengthAppliedOnPath	True when path placement consumed this run's textLength.
float	usedFontSizePx = 0.0f	Font size used for shaping, including font-size-adjust.