gWidgets2-S3methods: Return items

In gWidgets2: Rewrite of gWidgets API for Simplified GUI Construction

Description

Names are used in many different contexts.

We use the extraction operator, [, typically to refer to the underlying items from which a selection can be made. As well, we overload this to containers to refer to the child components.

The update method will ca use a widget to recompute itself, if it is necessary.

The current items for a gdf object are both the visible and non-visible items. To retrieve just the currently visible items, use the idiom obj[visible(obj), ].

The underlying widget may allow autocompletion, if this is the case then this method is used to set the list of candidates.

Usage

## S3 method for class 'GDefaultWidget'
x[i, j, ...]

## S3 method for class 'GComponent'
length(x)

## S3 replacement method for class 'GComponent'
 length(x) <- value

## S3 method for class 'GComponent'
dim(x)

## S3 method for class 'GComponent'
names(x)

## S3 replacement method for class 'GComponent'
 names(x) <- value

## S3 method for class 'GComponent'
dimnames(x)

## S3 replacement method for class 'GComponent'
 dimnames(x) <- value

## S3 method for class 'GComponent'
x[i, j, ..., drop = TRUE]

## S3 method for class 'GContainer'
x[i, j, ..., drop = TRUE]

## S3 replacement method for class 'GComponent'
 x[i, j, ...] <- value

## S3 method for class 'GComponent'
update(object, ...)

## S3 method for class 'GComponent'
str(object, ...)

## S3 method for class 'GDf'
x[i, j, ..., drop = TRUE]

## S3 method for class 'GEdit'
x[i, j, ..., drop = TRUE]

## S3 replacement method for class 'GFrame'
 names(x) <- value

Arguments

x	component
i	index or row index if applicable
j	column index if applicable
...	dots argument
value	value to assign
drop	logical. Does return value get "dropped" down to something easier?
object	object to update

Value

length of object

gWidgets2 documentation built on Jan. 11, 2022, 1:07 a.m.