text_width: Calculate the width of a string, ignoring new-lines

In textshaping: Bindings to the 'HarfBuzz' and 'Fribidi' Libraries for Text Shaping

Calculate the width of a string, ignoring new-lines

Description

This is a very simple alternative to shape_string() that simply calculates the width of strings without taking any newline into account. As such it is suitable to calculate the width of words or lines that has already been splitted by ⁠\n⁠. Input is recycled to the length of strings.

Usage

text_width(
  strings,
  family = "",
  italic = FALSE,
  bold = FALSE,
  size = 12,
  res = 72,
  include_bearing = TRUE,
  path = NULL,
  index = 0
)

Arguments

strings	A character vector of strings
family	The name of the font family
italic	logicals indicating the font style
bold	logicals indicating the font style
size	The pointsize of the font to use for size related measures
res	The ppi of the size related mesures
include_bearing	Logical, should left and right bearing be included in the string width?
path, index	path an index of a font file to circumvent lookup based on family and style

Value

A numeric vector giving the width of the strings in pixels. Use the provided res value to convert it into absolute values.

Examples

strings <- c('A short string', 'A very very looong string')
text_width(strings)

textshaping documentation built on Oct. 9, 2023, 5:06 p.m.