cheetahR (version 0.3.0)

cheetah: Create a Cheetah Grid widget

Description

Creates a high-performance table widget using Cheetah Grid.

Usage

cheetah(
  data,
  columns = NULL,
  column_group = NULL,
  width = NULL,
  height = NULL,
  elementId = NULL,
  rownames = TRUE,
  search = c("disabled", "exact", "contains"),
  sortable = TRUE,
  editable = FALSE,
  disable_column_resize = FALSE,
  column_freeze = NULL,
  default_row_height = NULL,
  default_col_width = NULL,
  header_row_height = NULL,
  theme = NULL,
  font = NULL,
  underlay_background_color = NULL,
  allow_range_paste = FALSE,
  keyboard_options = NULL
)

Value

An HTML widget object of class 'cheetah' that can be:

• Rendered in R Markdown documents

• Used in Shiny applications

• Displayed in R interactive sessions

The widget renders as an HTML table with all specified customizations.

Arguments

data

A data frame or matrix to display

columns

A list of column definitions. Each column can be customized using column_def().

column_group

A list of column groups. Each group can be customized using

width

Width of the widget

height

Height of the widget

elementId

The element ID for the widget

rownames

Logical. Whether to show rownames. Defaults to TRUE.

search

Whether to enable a search field on top of the table. Default to disabled. Use exact for exact matching or contains to get larger matches.

sortable

Logical. Whether to enable sorting on all columns. Defaults to TRUE.

editable

Logical. Whether to enable cell editing. Defaults to FALSE.

disable_column_resize

Logical. Whether to disable column resizing. Defaults to FALSE.

column_freeze

Integer. The number of columns to freeze from the left.

default_row_height

Integer. The default row height.

default_col_width

Integer. The default column width.

header_row_height

Integer. The header row height.

theme

The theme to use for the widget. Provide a named list of valid styling options to customize the widget. For possible options, see Extend Theme in Cheetah Grid

font

A String. The font to use for the widget. This is possible to set a font value according to the standard CSS font properties shorthand declaration. For example, font = "12px Arial, sans-serif". This means that the font size is 12px, the font family is Arial, and the font weight is normal.

underlay_background_color

The underlay background color of the widget.

allow_range_paste

Logical. Whether to allow range pasting. Defaults to FALSE. To activate this option set editable = TRUE or ensure a given column is editable.

keyboard_options

A named list of keyboard options. There are four options:

• moveCellOnTab. Set to TRUE to enable cell movement by Tab key.

• moveCellOnEnter. Set to TRUE to enable cell movement by Enter key.

• deleteCellValueOnDel. Set to TRUE to enable deletion of cell values with the Delete and BackSpace keys. Note that this will only work if editable is TRUE or a given column is editable.

• selectAllOnCtrlA. Set to TRUE to enable select all cells by 'Ctrl + A key.

Examples

# Basic usage
cheetah(iris)

# Customize columns
cheetah(
  iris,
  columns = list(
    Sepal.Length = column_def(name = "Length"),
    Sepal.Width = column_def(name = "Width"),
    Petal.Length = column_def(name = "Length"),
    Petal.Width = column_def(name = "Width")
  )
)

# Customize rownames
cheetah(
  mtcars,
  columns = list(
    rownames = column_def(width = 150, style = list(color = "red"))
  )
)

# Customize column groups
cheetah(
  iris,
  columns = list(
    Sepal.Length = column_def(name = "Length"),
    Sepal.Width = column_def(name = "Width"),
    Petal.Length = column_def(name = "Length"),
    Petal.Width = column_def(name = "Width")
  ),
  column_group = list(
    column_group(name = "Sepal", columns = c("Sepal.Length", "Sepal.Width")),
    column_group(name = "Petal", columns = c("Petal.Length", "Petal.Width"))
  )
)

# Enable search
cheetah(iris, search = "contains")

# Enable sorting
cheetah(iris, sortable = TRUE)

# Enable cell editing
cheetah(iris, editable = TRUE)

# Disable column resizing
cheetah(iris, disable_column_resize = TRUE)

# Freeze columns
cheetah(iris, column_freeze = 2)

# Set default row height
cheetah(iris, default_row_height = 30)