gexpandgroup: gexpandgroup A box container which can disclose or hide its...

In jverzani/gWidgetsWWW2: Toolkit implementation of the gWidgets API for use with web pages

Description

Use svalue<- to adjust the title. The visible<- method is used to programatically change whether the child components are displayed.

Usage

gexpandgroup(text = "", horizontal = TRUE, spacing = 2,
  use.scrollwindow = FALSE, container = NULL, handler = NULL,
  action = NULL, ..., width = NULL, height = NULL, ext.args = NULL)

Arguments

text	label text
horizontal	Boolean. Set to TRUE to pack children horizontally.
spacing	Integer. Between child spacing.
use.scrollwindow	Boolean. Set to TRUE to add a scrollwindow to manage space given to child widgets. Containers with scrollwindows often have their size fixed.
container	A parent container. In gWidgetsWWW2 a parent container is not optional (though it can be substituted with the parent argument in some circumstances). The parent specifies the widget heirarchy and the ... argument is used to pass along arguments to layout the child component in the parent container. Typically, these are passed to the add method of the parent container.
handler	Called when expanded or closed
action	passed to handler
...	Used to pass along argument to the parent container's add method and possible other arguments to the underlying ference class constructors.
width	width in pixels of component. Sizing in gWidgetsWWW2 is sometimes necessary as the arguments expand and fill are not well implemented.
height	height in pixels of the component.
ext.args	The contructors of gWidgetsWWW2 ultimately call an Ext constructor. The options passed to the Ext constructor may be added to or overridden by use of this argument. Values are passed in as named list components and with values converted into JavaScript objects by asJSObject.

See Also

ggroup, gframe

Examples

w <- gwindow()
sb <- gstatusbar("Powered by gWidgetsWWW and Rook", cont=w)
g <- gexpandgroup("click to close", cont=w)
gbutton("some button", cont=g)
visible(g) <- FALSE ## to close

jverzani/gWidgetsWWW2 documentation built on Feb. 9, 2020, 5:18 p.m.