gWidgets2: gdf – R documentation

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gdf

Constructor for a data frame editor

Description

Implementation varies wildly, but should provide at minimum functionality of edit.data.frame. A single mouse click on a cell should select that cell, a double click should initiate editing of that cell.

generic for toolkit dispatch

Assign handler to be called when a cell, row or column changes

For gdf svalue refers to the selected values.

visible is used to refer to which rows are being shown.

Usage

gdf(items = NULL, handler = NULL, action = NULL, container = NULL, ...,
  toolkit = guiToolkit())

.gdf(toolkit, items = NULL, handler = NULL, action = NULL,
  container = NULL, ...)

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

## S3 method for class 'GDf'
svalue(obj, index = NULL, drop = TRUE, ...)

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

Arguments

`items`	data frame to edit
`handler`	called on cell change
`action`	passed to handler
`container`	parent container
`...`	passed to container's `add` method
`toolkit`	toolkit
`obj`	object receiving event and emitting a signal to the handler
`index`	NULL or logical. If `TRUE` and widget supports it an index, instead of a value will be returned.
`drop`	NULL or logical. If widget supports it, drop will work as it does in a data frame or perhaps someother means.
`value`	value to assign for selection or property

Details

Contents of the data frame can be accessed via [ and manipulated with [<-.

The save_data reference class method can be called to save the data into a variable with the specified name.

example in inst/examples/ex-gdf.R

Value

An object of class gDf.

gWidgets2

Rewrite of gWidgets API for Simplified GUI Construction

v1.0-8

GPL (>= 3)

Authors

John Verzani

Initial release

gdf