R/geom_errorbarh_interactive.R

In davidgohel/ggiraph: Make 'ggplot2' Graphics Interactive

#' Create interactive horizontal error bars
#'
#' @description
#' This geometry is based on [geom_errorbarh()].
#' See the documentation for those functions for more details.
#'
#' @param ... arguments passed to base function,
#' plus any of the [interactive_parameters].
#' @inheritSection interactive_parameters Details for interactive geom functions
#' @examples
#' # add horizontal error bars -------
#' @example examples/geom_errorbarh_interactive.R
#' @seealso [girafe()]
#' @export
geom_errorbarh_interactive <- function(...)
  layer_interactive(geom_errorbarh, ...)

#' @rdname ggiraph-ggproto
#' @format NULL
#' @usage NULL
#' @export
#' @importFrom vctrs vec_interleave
GeomInteractiveErrorbarh <- ggproto(
  "GeomInteractiveErrorbarh",
  GeomErrorbarh,
  default_aes = add_default_interactive_aes(GeomErrorbarh),
  parameters = interactive_geom_parameters,
  draw_key = interactive_geom_draw_key,
  draw_panel = function(self, data, panel_params, coord, height = NULL, lineend = "butt",
                        .ipar = IPAR_NAMES) {

    x = vec_interleave(data$xmax, data$xmax, NA, data$xmax, data$xmin, NA, data$xmin, data$xmin)
    y = vec_interleave(data$ymin, data$ymax, NA, data$y,    data$y,    NA, data$ymin, data$ymax)
    z <- data_frame0(
      x = x,
      y = y,
      colour = rep(data$colour, each = 8),
      alpha = rep(data$alpha, each = 8),
      linewidth = rep(data$linewidth, each = 8),
      linetype = rep(data$linetype, each = 8),
      group = rep(1:(nrow(data)), each = 8),
      .size = nrow(data) * 8
    )
    z <- copy_interactive_attrs(data, z, each = 8, ipar = .ipar)
    GeomInteractivePath$draw_panel(z, panel_params, coord, lineend = lineend, .ipar = .ipar)
  }
)