Build a ggpaintr Shiny App with a bslib Theme — ptr_app

A themed variant of ptr_app() that lays out the generated controls and outputs inside a bslib::page_sidebar() shell with bslib::card() containers. Intended as a worked example of how to reskin ggpaintr using only its public API: the wrapper calls ptr_build_ids(), ptr_input_ui(), and ptr_server() and composes outputs from the id contract with plain shiny primitives — no internal helpers are touched.

Usage

ptr_app_bslib(
  formula,
  envir = parent.frame(),
  ui_text = NULL,
  placeholders = NULL,
  expr_check = TRUE,
  theme = NULL,
  title = "ggpaintr"
)

Arguments

formula: A single formula string using ggpaintr placeholders.
envir: Environment used to resolve local data objects when building the app.
ui_text: Optional named list of copy overrides for UI labels, helper text, and placeholders.
placeholders: Optional custom placeholder definitions or an existing placeholder registry.
expr_check: Controls expr placeholder validation. See ptr_app().
theme: A bslib theme object. Defaults to a Bootstrap 5 Flatly bootswatch. Pass any bslib::bs_theme() result to customize.
title: App title shown in the page header.

Value

A shiny.appobj.

Details

Requires the bslib package. Install it with install.packages("bslib").

Examples

if (FALSE) { # \dontrun{
ptr_app_bslib(
  "ggplot(data = mtcars, aes(x = var, y = var)) + geom_point()"
)
} # }