Struct FontMetrics
- Namespace
- PaintDotNet.DirectWrite
- Assembly
- PaintDotNet.Windows.dll
The FontMetrics structure specifies the metrics that are applicable to all glyphs within the font face.
See DWRITE_FONT_METRICS1
for more information.
public readonly struct FontMetrics : IEquatable<FontMetrics>- Implements
- Inherited Members
Constructors
Properties
- Ascent
The ascent value of the font face in font design units. Ascent is the distance from the top of font character alignment box to the English baseline.
- CapHeight
The cap height value of the font face in font design units. Cap height is the distance from the English baseline to the top of a typical English capital. Capital "H" is often used as a reference character for the purpose of calculating the cap height value.
- Descent
The descent value of the font face in font design units. Descent is the distance from the bottom of font character alignment box to the English baseline.
- DesignUnitsPerEm
The number of font design units per em unit. Font files use their own coordinate system of font design units. A font design unit is the smallest measurable unit in the em square, an imaginary square that is used to size and align glyphs. The concept of em square is used as a reference scale factor when defining font size and device transformation semantics. The size of one em square is also commonly used to compute the paragraph indentation value.
- LineGap
The line gap in font design units. Recommended additional white space to add between lines to improve legibility. The recommended line spacing (baseline-to-baseline distance) is the sum of ascent, descent, and lineGap. The line gap is usually positive or zero but can be negative, in which case the recommended line spacing is less than the height of the character alignment box.
- StrikethroughPosition
The strikethrough position value of the font face in font design units. Strikethrough position is the position of strikethrough relative to the English baseline. The value is usually made positive in order to place the strikethrough above the baseline.
- StrikethroughThickness
The suggested strikethrough thickness value of the font face in font design units.
- UnderlinePosition
The underline position value of the font face in font design units. Underline position is the position of underline relative to the English baseline. The value is usually made negative in order to place the underline below the baseline.
- UnderlineThickness
The suggested underline thickness value of the font face in font design units.
- XHeight
The x-height value of the font face in font design units. x-height is the distance from the English baseline to the top of lowercase letter "x", or a similar lowercase character.