gWidgets (version 0.0-25)

glayout: A container for aligning widgets in a table

Description

A container for laying out widgets in a table. The widgets are added using matrix notation ([i,j]<-).

Usage

glayout(homogeneous = FALSE, spacing = 10, container = NULL, ..., toolkit = guiToolkit())

Details

Widgets are added using matrix notation. A widget can span several cells, for instance obj[1:2,2:3] <- widget would place the widget in the first and second rows and second and third columns.

As a convenience, if the value to be assigned is a character it will be turned into a glabel object before being added.

For gWidgetsRGtk2, the widget may only be realized once, and once realized can not be modified. As such the process to add a new table is: use glayout contstructor to make object. Add widgets with matrix notation. Call visible<- method on object to make widget visible.

For gWidgetsrJava the extra argument anchor is a pair of values from -1,0,1 to indicate the x and y positioning of the widget within the cell. In gWidgetsRGtk2 such positioning is done by attaching the widget to a ggroup container with the desired postion and then adding the ggroup container to the glayout container.

For gWidgetsrJava the extra argument expand, a logical, will force the widget to expand to fill the entire space if TRUE.

Examples

## show part of mtcars dataframe in a layout
  obj = glayout(container=TRUE)
  for(i in 1:6) {
    for (j in 1:4) obj[i,j] <- glabel(mtcars[i,j])
  }
  visible(obj) <- TRUE