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#' repr options
#'
#' These options are used to control the behavior of repr when not calling it directly. Use \code{\link[base]{options}(repr.* = ...)} and \code{\link[base]{getOption}('repr.*')} to set and get them, respectively.
#'
#' Once this package is loaded, all options are set to defaults which weren’t set beforehand.
#'
#' Setting all options set to \code{NULL} are reset to defaults when reloading the package (or calling \code{repr:::.onload()}).
#'
#' @section Options:
#'
#' \describe{
#'
#' \item{\code{repr.plot.*}}{
#' Those are for representations of \code{recordedplot} instances:
#' \describe{
#' \item{\code{repr.plot.width}}{Plotting area width in inches (default: 7)}
#' \item{\code{repr.plot.height}}{Plotting area height in inches (default: 7)}
#' \item{\code{repr.plot.pointsize}}{Text height in pt (default: 12)}
#' \item{\code{repr.plot.bg}}{Background color (default: white)}
#' \item{\code{repr.plot.antialias}}{Which kind of antialiasing to use for for lines and text? 'gray', 'subpixel' or 'none'? (default: gray)}
#' \item{\code{repr.plot.res}}{PPI for rasterization (default: 120)}
#' \item{\code{repr.plot.quality}}{Quality of JPEG format in \% (default: 90)}
#' \item{\code{repr.plot.family}}{Vector font family. 'sans', 'serif', 'mono' or a specific one (default: sans)}
#' }
#' }
#' \item{\code{repr.vector.quote}}{
#' Output quotation marks for character vectors? (default: TRUE)
#' }
#' \item{\code{repr.vector.max.items}}{
#' How many items to display at max. Will insert an item with a horizontal ellipsis to show elision. (default: 400)
#' }
#' \item{\code{repr.matrix.max.rows}}{
#' How many rows to display at max. Will insert a row with vertical ellipses to show elision. (default: 60)
#' }
#' \item{\code{repr.matrix.max.cols}}{
#' How many cols to display at max. Will insert a column with horizontal ellipses to show elision. (default: 20)
#' }
#' \item{\code{repr.matrix.latex.colspec}}{
#' How to layout LaTeX tables when representing matrices or data.frames.
#' List of \code{row.head}, other \code{col}, and \code{end} strings.
#' \code{end} mainly exists for when you want a vertical line there (default: 'r|', 'l', and '')
#' }
#' \item{\code{repr.function.highlight}}{
#' Use the \code{highr} package to insert highlighting instructions into the code? Needs that package to be installed. (default: FALSE)
#' }
#' \item{\code{repr.html.deduplicate}}{
#' Use the \link{html_dependencies} manager to only include dependencies once? This can greatly reduce notebook size, but fails if e.g. iframes are used (default: FALSE)
#' }
#'
#' }
#'
#' @name repr-options
NULL
plot_defaults <- list(
repr.plot.width = 7,
repr.plot.height = 7,
repr.plot.pointsize = 12,
repr.plot.bg = 'white',
repr.plot.antialias = 'gray',
#nice medium-res DPI
repr.plot.res = 120,
#jpeg quality bumped from default
repr.plot.quality = 90,
#vector font family
repr.plot.family = 'sans')
class_defaults <- list(
repr.vector.quote = TRUE,
repr.vector.max.items = 400L,
repr.matrix.max.rows = 60L,
repr.matrix.max.cols = 20L,
repr.matrix.latex.colspec = list(row_head = 'r|', col = 'l', end = ''),
repr.function.highlight = FALSE,
repr.html.deduplicate = FALSE)
#' @name repr-options
#' @export
repr_option_defaults <- c(plot_defaults, class_defaults)
onload_options <- function() {
for (opt_name in names(repr_option_defaults)) {
if (is.null(getOption(opt_name)))
do.call(options, repr_option_defaults[opt_name]) # single []: name stays
}
}
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