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utils_render_latex.R
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#------------------------------------------------------------------------------#
#
# /$$
# | $$
# /$$$$$$ /$$$$$$
# /$$__ $$|_ $$_/
# | $$ \ $$ | $$
# | $$ | $$ | $$ /$$
# | $$$$$$$ | $$$$/
# \____ $$ \___/
# /$$ \ $$
# | $$$$$$/
# \______/
#
# This file is part of the 'rstudio/gt' project.
#
# Copyright (c) 2018-2025 gt authors
#
# For full copyright and license information, please look at
# https://gt.rstudio.com/LICENSE.html
#
#------------------------------------------------------------------------------#
# Create a simple LaTeX group by surrounding a statement with curly braces
latex_group <- function(...) {
paste0("{", ..., "}")
}
# Get a vector of LaTeX packages to use as table dependencies
latex_packages <- function() {
getOption("gt.latex_packages")
}
# Transform a footnote mark to a LaTeX representation as a superscript
footnote_mark_to_latex <- function(
data,
mark,
location = c("ref", "ftr")
) {
location <- match.arg(location)
if (length(mark) == 1 && is.na(mark)) {
return("")
}
spec <- get_footnote_spec_by_location(data = data, location = location)
spec <- spec %||% "^i"
if (grepl(".", spec, fixed = TRUE)) mark <- sprintf_unless_na("%s.", mark)
if (grepl("b", spec, fixed = TRUE)) mark <- sprintf_unless_na("\\textbf{%s}", mark)
if (grepl("i", spec, fixed = TRUE)) mark <- sprintf_unless_na("\\textit{%s}", mark)
if (grepl("\\(|\\[", spec)) mark <- sprintf_unless_na("(%s", mark)
if (grepl("\\)|\\]", spec)) mark <- sprintf_unless_na("%s)", mark)
if (grepl("^", spec, fixed = TRUE)) {
mark <- sprintf_unless_na("\\textsuperscript{%s}", mark)
}
mark[is.na(mark)] <- ""
mark
}
#' @noRd
sprintf_unless_na <- function(fmt, x) {
ifelse(
is.na(x),
NA_character_,
sprintf(fmt, x)
)
}
#' @noRd
latex_body_row <- function(content, type) {
if (type == "row") {
return(paste(paste(content, collapse = " & "), "\\\\ \n"))
} else if (type == "group") {
return(paste(paste(content, collapse = " & "), "\\\\ \n"))
}
}
#' @noRd
latex_heading_row <- function(content) {
paste0(
paste(paste(content, collapse = " & "), "\\\\ \n"),
"\\midrule\\addlinespace[2.5pt]\n",
collapse = ""
)
}
#' @noRd
latex_group_row <- function(
group_name,
n_cols,
top_border = TRUE,
bottom_border = TRUE,
colwidth_df
) {
# The width of the group row should be that of the entire table
tab_width <- colwidth_df$tbl_width[1L]
use_width <- if (is.na(tab_width)) "l" else sprintf(">{\\raggedright\\arraybackslash}m{%s}", tab_width)
if (is.na(group_name)) {
row_txt <- paste0("\\multicolumn{", n_cols, "}{", use_width, "}{\\rule{0pt}{0pt}} \\\\[-3.2ex] \n")
} else {
row_txt <- paste0("\\multicolumn{", n_cols, "}{", use_width, "}{", group_name, "} \\\\[2.5pt] \n")
}
paste0(
ifelse(top_border, "\\midrule\\addlinespace[2.5pt]\n", ""),
row_txt,
ifelse(bottom_border, "\\midrule\\addlinespace[2.5pt]\n", ""),
collapse = ""
)
}
#' @noRd
create_wrap_start_l <- function(data) {
if (check_quarto()) {
tbl_pos <- ""
} else {
tbl_pos <- paste0("[", dt_options_get_value(data = data, option = "latex_tbl_pos"), "]")
}
ifelse(
dt_options_get_value(data = data, option = "latex_use_longtable"),
"\\begingroup\n",
paste0("\\begin{table}", tbl_pos, "\n")
)
}
#' @noRd
create_table_start_l <- function(data, colwidth_df) {
# Get vector representation of stub layout
stub_layout <- get_stub_layout(data = data)
# Extract only visible columns of `colwidth_df` based on stub_layout.
types <- c("default")
if ("rowname" %in% stub_layout) {
types <- c(types, "stub")
}
if ("group_label" %in% stub_layout) {
types <- c(types, "row_group")
}
colwidth_df_visible <- colwidth_df[colwidth_df$type %in% types, ]
# Ensure that the `colwidth_df_visible` df rows are sorted such that the
# `"row_group"` row is first (only if it's located in the stub), then `"stub"`,
# and then everything else
if ("stub" %in% colwidth_df_visible[["type"]]) {
stub_idx <- which(colwidth_df_visible$type == "stub")
othr_idx <- base::setdiff(seq_len(nrow(colwidth_df_visible)), stub_idx)
colwidth_df_visible <- vctrs::vec_slice(colwidth_df_visible, c(stub_idx, othr_idx))
}
if ("row_group" %in% colwidth_df_visible[["type"]]) {
row_group_idx <- which(colwidth_df_visible$type == "row_group")
othr_idx <- base::setdiff(seq_len(nrow(colwidth_df_visible)), row_group_idx)
colwidth_df_visible <- vctrs::vec_slice(colwidth_df_visible, c(row_group_idx, othr_idx))
}
# Determine if there are any footnotes or source notes; if any,
# add a `\setlength` command that will pull up the minipage environment
# for the footnotes block
if (
nrow(dt_footnotes_get(data = data)) > 0 ||
length(dt_source_notes_get(data = data)) > 0
) {
longtable_post_length <- "\\setlength{\\LTpost}{0mm}\n"
} else {
longtable_post_length <- ""
}
# Generate the column definitions for visible columns
# these can either be simple `l`, `c`, `r` directive if a width isn't set
# for a column, or, use `p{<width>}` statements with leading `>{...}`
# specifiers that should have one of the following:
# - `>{\raggedright\arraybackslash}` <- left alignment
# - `>{\raggedleft\arraybackslash}` <- right alignment
# - `>{\centering\arraybackslash}` <- center alignment
# the `\arraybackslash` command is used to restore the behavior of the
# `\\` command in the table (all of this uses the CTAN `array` package)
if (any(colwidth_df_visible$unspec < 1L)) {
col_defs <- NULL
for (i in seq_len(nrow(colwidth_df_visible))) {
if (colwidth_df_visible$unspec[i] == 1L) {
col_defs_i <- substr(colwidth_df_visible$column_align[i], 1, 1)
} else {
align <-
switch(
colwidth_df_visible$column_align[i],
left = ">{\\raggedright\\arraybackslash}",
right = ">{\\raggedleft\\arraybackslash}",
center = ">{\\centering\\arraybackslash}",
">{\\raggedright\\arraybackslash}"
)
col_defs_i <-
paste0(
align,
"p{",
create_singlecolumn_width_text_l(pt = colwidth_df_visible$pt[i], lw = colwidth_df_visible$lw[i]),
"}"
)
}
col_defs <- c(col_defs, col_defs_i)
}
} else {
col_defs <- substr(colwidth_df_visible$column_align, 1, 1)
}
# Add borders to the right of any columns in the stub
if (length(stub_layout) > 0) {
col_defs[seq_along(stub_layout)] <-
paste0(col_defs[seq_along(stub_layout)], "|")
}
# If a table width is specified, add an extra column
# space to fill in enough space to match the width
extra_sep <- ''
if (dt_options_get_value(data = data, option = "table_width") != "auto")
extra_sep <- "@{\\extracolsep{\\fill}}"
# determine string for table width if using tabular* environment
hdr_tabular <- ""
if(!dt_options_get_value(data = data, option = "latex_use_longtable")) {
# we need to use the extracolsep here for tabular* regardless of width
extra_sep <- '@{\\extracolsep{\\fill}}'
table_width <- dt_options_get_value(data = data, 'table_width')
if (endsWith(table_width, "%")) {
tw <- as.numeric(gsub("%", "", table_width, fixed = TRUE))
hdr_tabular <- paste0("\\begin{tabular*}{", tw/100, "\\linewidth}{")
} else if (endsWith(table_width, "px")) {
width_in_pt <- 0.75 * convert_to_px(table_width)
hdr_tabular <- paste0("\\begin{tabular*}{", width_in_pt, "pt}{")
} else {
hdr_tabular <- "\\begin{tabular*}{\\linewidth}{"
}
}
# Generate setup statements for table including default left
# alignments and vertical lines for any stub columns
uses_longtable <- dt_options_get_value(data = data, option = "latex_use_longtable")
paste0(
ifelse(uses_longtable,
longtable_post_length,
""),
ifelse(uses_longtable,
"\\begin{longtable}{",
hdr_tabular),
extra_sep,
paste(col_defs, collapse = ""),
"}\n",
collapse = ""
)
}
#' Create the caption component of a table
#'
#' The table caption component contains the caption; if
#' there are no caption components defined this function will return an empty
#' string.
#'
#' @noRd
create_caption_component_l <- function(data) {
# Create the table caption if available
table_caption <- dt_options_get_value(data = data, option = "table_caption")
if (!all(is.na(table_caption))) {
table_caption <- process_text(table_caption, context = "latex")
if (isTRUE(getOption("knitr.in.progress"))) {
table_caption <- kable_caption(label = NULL, table_caption, "latex")
ifelse(check_quarto(),
"",
paste0("\\caption",
latex_group(table_caption),
ifelse(dt_options_get_value(data = data, option = "latex_use_longtable"),
" \\\\ \n",
" \n")
)
)
} else {
paste0("\\caption",
latex_group(table_caption),
ifelse(dt_options_get_value(data = data, option = "latex_use_longtable"),
" \\\\ \n",
" \n")
)
}
} else {
NULL
}
}
#' Create the heading component of a table
#'
#' The table heading component contains the title and possibly a subtitle; if
#' there are no heading components defined this function will return an empty
#' string.
#'
#' @noRd
create_heading_component_l <- function(data) {
# If there is no title or heading component, then return an empty string
if (!dt_heading_has_title(data = data)) {
return("")
}
heading <- dt_heading_get(data = data)
footnotes_tbl <- dt_footnotes_get(data = data)
subtitle_defined <- dt_heading_has_subtitle(data = data)
# Get the footnote marks for the title
if ("title" %in% footnotes_tbl$locname) {
footnote_title_marks <-
coalesce_marks(
fn_tbl = footnotes_tbl,
locname = "title"
)
footnote_title_marks <-
footnote_mark_to_latex(
data = data,
mark = footnote_title_marks
)
} else {
footnote_title_marks <- ""
}
# Get the footnote marks for the subtitle
if (subtitle_defined && "subtitle" %in% footnotes_tbl$locname) {
footnote_subtitle_marks <-
coalesce_marks(
fn_tbl = footnotes_tbl,
locname = "subtitle"
)
footnote_subtitle_marks <-
footnote_mark_to_latex(
data = data,
mark = footnote_subtitle_marks
)
} else {
footnote_subtitle_marks <- ""
}
title_row <- latex_group("\\large ", heading$title, footnote_title_marks)
if (subtitle_defined) {
subtitle_row <-
paste0(
" \\\\ \n",
latex_group("\\small ", heading$subtitle, footnote_subtitle_marks)
)
} else {
subtitle_row <- ""
}
paste0(
paste_between(
paste0(title_row, subtitle_row),
x_2 = c("\\caption*{\n", "\n}")
),
ifelse(dt_options_get_value(data = data, option = "latex_use_longtable"),
" \\\\ \n",
" \n")
)
}
#' Create the columns component of a table
#'
#' @noRd
create_columns_component_l <- function(data, colwidth_df) {
# Get vector representation of stub layout
stub_layout <- get_stub_layout(data = data)
styles_tbl <- dt_styles_get(data = data)
# Determine the finalized number of spanner rows
spanner_row_count <-
dt_spanners_matrix_height(
data = data,
omit_columns_row = TRUE
)
# Get the column headings
headings_vars <- dt_boxhead_get_vars_default(data = data)
headings_labels <- dt_boxhead_get_vars_labels_default(data = data)
for (i in seq_along(headings_labels)) {
styles_heading_i <-
consolidate_cell_styles_l(
dplyr::filter(
styles_tbl,
locname == "columns_columns",
colname == headings_labels[i]
)
)
headings_labels[i] <- apply_cell_styles_l(headings_labels[i], styles_heading_i)
}
# If there is a stub then modify the `headings_vars` and `headings_labels`
if (length(stub_layout) > 0) {
stubh <- dt_stubhead_get(data = data)
styles_stubhead <-
consolidate_cell_styles_l(
vctrs::vec_slice(styles_tbl, styles_tbl$locname == "stubhead")
)
headings_vars <- prepend_vec(headings_vars, "::stub")
stub_label <- ifelse(
length(stubh$label) > 0,
apply_cell_styles_l(stubh$label, styles_stubhead),
""
)
if (length(stub_layout) > 1L) {
# If stub_layout == 1L, multicolumn is not needed and stub_label is already defined
stub_df <- dplyr::filter(colwidth_df, type %in% c("stub", "row_group"))
if (any(stub_df$unspec == 1L)) {
width_txt <- "c"
} else {
width_txt <-
sprintf(
">{\\centering\\arraybackslash}m{%s}",
create_singlecolumn_width_text_l(
pt = sum(stub_df$pt),
lw = sum(stub_df$lw)
)
)
}
stub_label <-
sprintf(
"\\multicolumn{%d}{%s}{%s}",
length(stub_layout),
width_txt,
stub_label
)
}
headings_labels <- prepend_vec(headings_labels, stub_label)
}
table_col_headings <-
paste0(latex_heading_row(content = headings_labels), collapse = "")
if (spanner_row_count > 0) {
table_col_spanners <- c()
spanners <-
dt_spanners_print_matrix(
data = data,
include_hidden = FALSE,
omit_columns_row = TRUE
)
spanner_ids <-
dt_spanners_print_matrix(
data = data,
include_hidden = FALSE,
ids = TRUE,
omit_columns_row = TRUE
)
if (length(stub_layout) > 0) {
stub_matrix <- matrix(nrow = nrow(spanners), ncol = length(stub_layout))
spanners <- cbind(stub_matrix, spanners)
spanner_ids <- cbind(stub_matrix, spanner_ids)
}
for (i in seq_len(nrow(spanners))) {
spanners_i <- spanners[i, ]
spanner_ids_i <- spanner_ids[i, ]
spanners_rle <- unclass(rle(spanner_ids_i))
# We need a parallel vector of spanner labels and this could
# be part of the `spanners_rle` list
spanners_rle$labels <- spanners_i[cumsum(spanners_rle$lengths)]
spanners_rle <- apply_spanner_styles_l(spanners_rle, styles_tbl)
begins <- (cumsum(utils::head(c(0, spanners_rle$lengths), -1)) + 1)[!is.na(spanners_rle$values)]
ends <- cumsum(spanners_rle$lengths)[!is.na(spanners_rle$values)]
cmidrule <- paste0("\\cmidrule(lr){", begins, "-", ends, "}")
is_spanner_na <- is.na(spanners_rle$values)
is_spanner_single <- spanners_rle$lengths == 1
firsts <- utils::head(cumsum(c(1L, spanners_rle$lengths)), -1L)
lasts <- cumsum(spanners_rle$lengths)
span_widths <- calculate_multicolumn_width_text_l(begins = firsts, ends = lasts, colwidth_df = colwidth_df)
tex_widths <-
ifelse(
span_widths == "",
"c",
paste0(">{\\centering\\arraybackslash}m{", span_widths, "}")
)
multicol <-
ifelse(
is_spanner_na, "",
ifelse(
is_spanner_single, spanners_rle$labels,
sprintf(
"\\multicolumn{%d}{%s}{%s}",
spanners_rle$lengths,
tex_widths,
spanners_rle$labels
)
)
)
# If there is a stub we need to tweak the spanners row with a blank
# multicolumn statement that's the same width as that in the columns
# row; this is to prevent the automatic vertical line that would otherwise
# appear here
if (length(stub_layout) > 1L) {
tex_stub_width <- calculate_multicolumn_width_text_l(begins = 1, ends = 2, colwidth_df = colwidth_df)
if (tex_stub_width == "") {
mc_stub <- "l"
} else {
mc_stub <- sprintf(">{\\raggedright\\arraybackslash}m{%s}", tex_stub_width)
}
multicol <-
c(
sprintf("\\multicolumn{%d}{%s}{}", length(stub_layout), mc_stub),
multicol[-seq_along(stub_layout)]
)
}
multicol <- paste0(paste(multicol, collapse = " & "), " \\\\ \n")
cmidrule <- paste0(paste(cmidrule, collapse = " "), "\n")
col_spanners_i <- paste0(multicol, cmidrule, collapse = "")
table_col_spanners <- c(table_col_spanners, col_spanners_i)
}
} else {
table_col_spanners <- ""
}
paste0(
"\\toprule\n",
paste0(table_col_spanners, collapse = ""),
table_col_headings
)
}
#' @noRd
create_body_component_l <- function(data, colwidth_df) {
summaries_present <- dt_summary_exists(data = data)
list_of_summaries <- dt_summary_df_get(data = data)
groups_rows_df <- dt_groups_rows_get(data = data)
stub_df <- dt_stub_df_get(data = data)
# Get vector representation of stub layout
stub_layout <- get_stub_layout(data = data)
# Determine if there is a stub column in `stub_layout` and whether we
# have a two-column stub (with the group label on the left side)
has_stub_column <- "rowname" %in% stub_layout
has_two_col_stub <- "group_label" %in% stub_layout
n_cols <- get_effective_number_of_columns(data = data)
# Get a matrix of body cells to render, split into a list of
# character vectors by row, and create a vector of LaTeX body rows
cell_matrix <- get_body_component_cell_matrix(data = data)
row_splits_body <- split_row_content(cell_matrix)
# Get the number of rows in the body
n_rows <- nrow(cell_matrix)
if ("group_label" %in% stub_layout) {
for (i in seq_len(nrow(groups_rows_df))) {
n_rows_in_group <- groups_rows_df$row_end[i] - groups_rows_df$row_start[i] + 1L
if (groups_rows_df$has_summary_rows[i]) {
n_rows_in_group <- n_rows_in_group + dim(list_of_summaries$summary_df_data_list[[i]])[1L]
}
row_splits_body[[groups_rows_df$row_start[i]]][1] <-
sprintf("\\multirow{%d}{%s}{%s}",
n_rows_in_group,
if (colwidth_df$unspec[1L] == 1L) "*" else "=",
groups_rows_df$group_label[i])
#groups_rows_df$group_label[i]
}
}
# Insert indentation where necessary
if (has_stub_column && !all(is.na(stub_df$indent))) {
stub_indent_length <-
dt_options_get_value(
data = data,
option = "stub_indent_length"
)
indent_length_px <- as.integer(gsub("px", "", stub_indent_length))
indent_length_pt <- indent_length_px * 0.75
row_label_col <- which(stub_layout == "rowname")
lapply(
seq_len(n_rows),
FUN = function(x) {
indent <- as.integer(stub_df[x, ][["indent"]])
if (!is.na(indent)) {
row_splits_body[[x]][row_label_col] <<-
paste0(
"\\hspace*{", indent_length_pt * indent, "pt} ",
row_splits_body[[x]][row_label_col]
)
}
}
)
}
body_rows <-
create_body_rows_l(
data = data,
row_splits_body = row_splits_body
)
# Apply formatting to group labels
if (dim(groups_rows_df)[1L] > 0 && !all(is.na(groups_rows_df$group_label))) {
styles_tbl <- dt_styles_get(data)
for (i in seq_along(groups_rows_df$group_label)) {
if (!is.na(groups_rows_df$group_label[i])) {
styles_groups <-
consolidate_cell_styles_l(
vctrs::vec_slice(
styles_tbl,
styles_tbl$locname == "row_groups" &
styles_tbl$grpname == groups_rows_df$group_id[i]
)
)
groups_rows_df$group_label[i] <- apply_cell_styles_l(groups_rows_df$group_label[i], styles_groups)
}
}
}
# # Replace an NA group with a small amount of vertical space
# if (any(is.na(groups_rows_df$group_label))) {
#
# groups_rows_df <-
# dplyr::mutate(
# groups_rows_df,
# group_label = ifelse(
# is.na(group_label), "\\vspace*{-5mm}", group_label
# )
# )
# }
current_group_id <- character(0L)
body_rows <-
lapply(
seq_len(n_rows),
function(i) {
body_section <- list()
group_info <-
groups_rows_df[i >= groups_rows_df$row_start & i <= groups_rows_df$row_end, ]
if (nrow(group_info) == 0) {
group_info <- NULL
}
group_id <- group_info[["group_id"]]
group_label <- group_info[["group_label"]]
group_row_start <- group_info[["row_start"]]
group_row_end <- group_info[["row_end"]]
group_has_summary_rows <- group_info[["has_summary_rows"]]
group_summary_row_side <- group_info[["summary_row_side"]]
if (!is.null(group_id)) current_group_id <<- group_id
# Is there a group heading row (dedicated row w/ group label) at `i`?
group_heading_row_at_i <-
!is.null(group_id) &&
!has_two_col_stub &&
group_row_start == i
# Is this the first row of a group?
group_start <- !is.null(group_info) && group_row_start == i
# Insert a horizontal line if this is the beginning of a new row
# group and there is a two-column stub
if (group_start && has_two_col_stub && i != 1) {
body_section <-
append(body_section, "\\midrule\\addlinespace[2.5pt]\n")
}
#
# Create a group heading row
#
if (group_heading_row_at_i) {
group_heading_row <-
latex_group_row(
group_name = group_label,
n_cols = n_cols,
top_border = i != 1,
bottom_border = TRUE,
colwidth_df = colwidth_df
)
body_section <- append(body_section, list(group_heading_row))
}
#
# Get groupwise summary rows (for either top or bottom of group)
#
if (
summaries_present &&
!is.null(group_has_summary_rows) &&
group_has_summary_rows &&
(
i %in% groups_rows_df$row_start &&
!is.null(group_summary_row_side) &&
!is.na(group_summary_row_side) &&
group_summary_row_side == "top"
) ||
(
i %in% groups_rows_df$row_end &&
!is.null(group_summary_row_side) &&
!is.na(group_summary_row_side) &&
group_summary_row_side == "bottom"
)
) {
summary_section <-
summary_rows_for_group_l(
data = data,
group_id = group_id,
side_group_summary = group_summary_row_side
)
} else {
summary_section <- NULL
}
body_row <- body_rows[i]
if (!is.null(summary_section) && group_summary_row_side == "top") {
if (!has_two_col_stub) {
summary_section <- paste0(summary_section, summary_h_border)
}
body_section <- append(body_section, summary_section)
}
body_section <- append(body_section, list(body_row))
if (!is.null(summary_section) && group_summary_row_side == "bottom") {
if (!(has_stub_column && has_two_col_stub)) {
summary_section <- paste0(summary_h_border, summary_section)
}
body_section <- append(body_section, summary_section)
}
# In a very particular case, we need to hoist the group label to the
# first row of summary labels (at the top of a row group where there
# is a two-column stub)
if (
has_stub_column &&
has_two_col_stub &&
group_row_start == i &&
!is.null(summary_section) &&
group_summary_row_side == "top" &&
length(body_section) > 1
) {
body_row_idx <- length(body_section)
summary_idx <- body_row_idx - 1
group_name_fragment <- gsub("(^.*? & ).*", "\\1", body_section[[body_row_idx]])
body_section[[summary_idx]] <- sub("^.*? & ", "", body_section[[summary_idx]])
body_section[[summary_idx]] <- paste0(group_name_fragment, body_section[[summary_idx]])
body_section[[body_row_idx]] <- sub("^.*? & ", " & ", body_section[[body_row_idx]])
}
body_section
}
)
body_rows <- unlist(body_rows)
#
# Add grand summary rows
#
if (
summaries_present &&
grand_summary_col %in% names(list_of_summaries$summary_df_display_list)
) {
side <- summary_row_side(data = data, group_id = grand_summary_col)
grand_summary_section <-
summary_rows_for_group_l(
data = data,
group_id = grand_summary_col,
side_grand_summary = side
)
if (side == "top") {
body_rows <- c(grand_summary_section, body_rows)
} else {
body_rows <- c(body_rows, grand_summary_section)
}
}
paste(body_rows, collapse = "")
}
summary_rows_for_group_l <- function(
data,
group_id,
side_group_summary = "bottom",
side_grand_summary = "bottom"
) {
# Check that `group_id` isn't NULL and that length is exactly 1
if (is.null(group_id) || length(group_id) != 1) {
cli::cli_abort("`group_id` cannot be `NULL` and must be of length 1.")
}
list_of_summaries <- dt_summary_df_get(data = data)
# Obtain all of the visible (`"default"`), non-stub column names
# for the table from the `boxh` object
default_vars <- dt_boxhead_get_vars_default(data = data)
stub_layout <- get_stub_layout(data = data)
stub_is_2 <- length(stub_layout) > 1
summary_row_lines <- list()
# In the below conditions
# - `grand_summary_col` is a global variable (`"::GRAND_SUMMARY"`, assigned
# in `dt_summary.R`)
# - `group_id` might be passed in as NA when there are unnamed groups (this
# can happen usually when using `tab_row_group()` to build these row groups)
# and you cannot create summary rows for unnamed groups
if (is.na(group_id)) {
return(summary_row_lines)
} else if (
group_id %in% names(list_of_summaries$summary_df_display_list) &&
group_id != grand_summary_col
) {
summary_row_type <- "group"
} else if (group_id == grand_summary_col) {
summary_row_type <- "grand"
} else {
return(summary_row_lines)
}
# Obtain the summary data table specific to the group ID and
# select the column named `rowname` and all of the visible columns
summary_df <-
dplyr::select(
list_of_summaries$summary_df_display_list[[group_id]],
dplyr::all_of(c(rowname_col_private, default_vars))
)
for (col_name in names(summary_df)) {
loc_type <- if(summary_row_type == "grand") "grand_summary_cells" else "summary_cells"
styles_df <- dt_styles_get(data)
styles_df <- styles_df[styles_df$locname == loc_type & styles_df$grpname == group_id, , drop = FALSE]
# set colname to ::rowname:: if colname is present and colnum = 0
styles_df$colname[is.na(styles_df$colname) & styles_df$colnum == 0] <- rowname_col_private
styles_summary <- styles_df[styles_df$colname == col_name, , drop = FALSE]
if (dim(styles_summary)[1L] > 0L) {
for (row_num in sort(unique(styles_summary$rownum))) {
# The value of colnum in styles_summary differs for
# group and grand summaries
if (summary_row_type == "group") {
row_pos <- (row_num - floor(row_num)) * 100L
} else {
row_pos <- row_num
}
# style each row
row_style <- styles_summary[styles_summary$rownum == row_num, , drop = FALSE]
row_style <- consolidate_cell_styles_l(row_style)
summary_df[[col_name]][row_pos] <- apply_cell_styles_l(summary_df[[col_name]][row_pos], row_style)
}
}
}
row_splits_summary <- split_row_content(summary_df)
if (stub_is_2) {
row_splits_summary <-
lapply(
row_splits_summary,
function(x) {
x <- c("", x)
x[1:2] <- paste0("\\multicolumn{1}{l|}{", x[1:2], "}")
x
}
)
}
summary_rows <-
paste0(
vapply(
row_splits_summary,
FUN.VALUE = character(1L),
latex_body_row,
type = "row"
),
collapse = ""
)
if (summary_row_type != "grand") {