gexpandgroup: Constructor of box container widget with disclosure trigger...

In gWidgets2: Rewrite of gWidgets API for Simplified GUI Construction

Constructor of box container widget with disclosure trigger and label

Description

For gexpandgroup, the visible assignment method is overridden to change the disclosure state

The change handler for a expandGroup is called when the group changes visibility

Usage

gexpandgroup(
  text = "",
  markup = FALSE,
  horizontal = TRUE,
  handler = NULL,
  action = NULL,
  container = NULL,
  ...,
  toolkit = guiToolkit()
)

.gexpandgroup(
  toolkit,
  text = "",
  markup = FALSE,
  horizontal = TRUE,
  handler = NULL,
  action = NULL,
  container = NULL,
  ...
)

## S3 replacement method for class 'GExpandGroup'
 visible(obj) <- value

## S3 method for class 'GExpandGroup'
addHandlerChanged(obj, handler, action = NULL, ...)

Arguments

text	Label text
markup	logical. Does text have markup? (Toolkit dependent: only implemented for RGtk2, in qtbase one can pass HTML formatted text)
horizontal	horizontal (TRUE) or vertical packing.
handler	handler called when state is toggled
action	passed to handler
container	parent container
...	passed to parent's add method
toolkit	toolkit
obj	object receiving event and emitting a signal to the handler
value	logical. If TRUE show, FALSE hide.

Value

An object of class GExpandGroup inheriting from GFrame

See Also

ggroup and gframe

Examples

 if(interactive()) {
    w <- gwindow("Box containers")
    g <- gvbox(cont=w)                         # ggroup(horizonta=FALSE, ...)
    nb <- gnotebook(cont=g); gbutton("one", label="one", cont=nb)
    gframe("Frame", cont=g)
    pg <- gpanedgroup(cont=g);
    gbutton("one", cont=pg);
    gbutton("two", cont=pg)

    eg <- gexpandgroup(cont=g, horizontal=FALSE);
    glabel("Click above to hide", cont=eg);
    gbutton("one", cont=eg);
    gbutton("two", cont=eg)
}

gWidgets2 documentation built on April 3, 2025, 6:18 p.m.