GlyphGeometryRef
public struct GlyphGeometryRef : GlyphGeometryProtocol
The PangoGlyphGeometry
structure contains width and positioning
information for a single glyph.
Note that width
is not guaranteed to be the same as the glyph
extents. Kerning and other positioning applied during shaping will
affect both the width
and the x_offset
for the glyphs in the
glyph string that results from shaping.
The information in this struct is intended for rendering the glyphs, as follows:
- Assume the current point is (x, y)
- Render the current glyph at (x + x_offset, y + y_offset),
- Advance the current point to (x + width, y)
- Render the next glyph
The GlyphGeometryRef
type acts as a lightweight Swift reference to an underlying PangoGlyphGeometry
instance.
It exposes methods that can operate on this data type through GlyphGeometryProtocol
conformance.
Use GlyphGeometryRef
only as an unowned
reference to an existing PangoGlyphGeometry
instance.
-
Untyped pointer to the underlying `PangoGlyphGeometry` instance.
For type-safe access, use the generated, typed pointer
_ptr
property instead.Declaration
Swift
public let ptr: UnsafeMutableRawPointer!
-
Designated initialiser from the underlying
C
data typeDeclaration
Swift
@inlinable init(_ p: UnsafeMutablePointer<PangoGlyphGeometry>)
-
Designated initialiser from a constant pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init(_ p: UnsafePointer<PangoGlyphGeometry>)
-
Conditional initialiser from an optional pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafeMutablePointer<PangoGlyphGeometry>?)
-
Conditional initialiser from an optional, non-mutable pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafePointer<PangoGlyphGeometry>?)
-
Conditional initialiser from an optional
gpointer
Declaration
Swift
@inlinable init!(gpointer g: gpointer?)
-
Conditional initialiser from an optional, non-mutable
gconstpointer
Declaration
Swift
@inlinable init!(gconstpointer g: gconstpointer?)
-
Reference intialiser for a related type that implements
GlyphGeometryProtocol
Declaration
Swift
@inlinable init<T>(_ other: T) where T : GlyphGeometryProtocol
-
Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
GlyphGeometryProtocol
.Declaration
Swift
@inlinable init<T>(cPointer: UnsafeMutablePointer<T>)
-
Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
GlyphGeometryProtocol
.Declaration
Swift
@inlinable init<T>(constPointer: UnsafePointer<T>)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
GlyphGeometryProtocol
.Declaration
Swift
@inlinable init(mutating raw: UnsafeRawPointer)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
GlyphGeometryProtocol
.Declaration
Swift
@inlinable init(raw: UnsafeMutableRawPointer)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
GlyphGeometryProtocol
.Declaration
Swift
@inlinable init(opaquePointer: OpaquePointer)