tkWidgets: values.Widget – R documentation

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values.Widget

Deal with Names and Values of Widget Created by widgetRender()

Description

Functions in this group print or list the names or/and values of the widget elements on a widget created by widgetRender().

Usage

values.Widget(x)

Arguments

`x`	A list (print.pWidget) or list of lists(print.Widget, values.Widget) that representing a widget element (list) on a widget or a widget (list of lists) generated by using the function widgetRender.

Details

print.pWidget takes a list defining a widget element on a widget generated by using the function widgetREnder. An example of a valid list will be:

pW1 <- list(Name="AAA", Value="bbb", toText=function(x) paste(x,collapse = ","), fromText=NULL, canEdit=TRUE, buttonFun = fileBrowser, buttonText = "Browse")

print.Widget and values.Widget take a list of lists defining all the widget elements on a widget generated using the function widgetRender. An example of a valid list will be:

pW1 <- list(Name="AAA", Value="bbb", toText=function(x) paste(x,collapse = ","), fromText=NULL, canEdit=TRUE, buttonFun = fileBrowser, buttonText = "Browse")

pW2 <- list(Name="BBB", Value="x,y,z", toText=function(x) paste(x, sep=","), fromText=NULL, canEdit=TRUE, buttonFun = ls, buttonText = "List")

pW3 <- list(Name="CCC", Value="ccc", toText=function(x) paste(x, collapse = ","), fromText=NULL, canEdit=TRUE, buttonFun=NULL, buttonText=NULL)

widget1 <- list(wList = list(a = pW1, b = pW2, c = pW3), preFun = function() "Hi", postFun = function() "Bye")

Value

returnList

values.Widget returns a list of lists each with the name and value of an entry box on the widget created.

Author(s)

Jianhua (John) Zhang

Examples

# Create the lists and list of lists
  pW1 <- list(Name="AAA", Value="bbb",
              toText=function(x) paste(x,collapse = ","),
              fromText=NULL, canEdit=TRUE, buttonFun = fileBrowser,
              buttonText = "Browse")

  pW2 <- list(Name="BBB", Value="x,y,z", toText=function(x) paste(x, sep=","),
            fromText=NULL, canEdit=TRUE, buttonFun = ls,
           buttonText = "List")

  pW3 <- list(Name="CCC", Value="ccc",
              toText=function(x) paste(x, collapse = ","),
              fromText=NULL, canEdit=TRUE, buttonFun=NULL,
              buttonText=NULL)

  widget1 <- list(wList = list(a = pW1, b = pW2, c = pW3),
                  preFun = function() "Hi",
                  postFun = function() "Bye")

# Define the classes
class(pW1) <- c("pWidget", "textbox")
class(widget1) <- "Widget"

# Call the funcitons
print.pWidget(pW1)
print.Widget(widget1)
values.Widget(widget1)

tkWidgets

R based tk widgets

v1.68.0

Artistic-2.0

Authors

J. Zhang <jzhang@jimmy.harvard.edu>

Initial release