getWvalues {tkWidgets} | R Documentation |
Obtaining values of widgets on a given widget
Description
This function returns a list containing the values for widgets on a widget created by function widgetRender. It takes a list defining the widget and returns a named list containing the values for each of the widgets.
Usage
getWvalues(W)
Arguments
W |
|
Details
For a widget containing 3 widgets each with some associated functionalities, the list is defined as this:
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, collapse=","), 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")
widget1 will be used to create a widget with 3 entry boxes. When users modify the values through the widget created, new values will be kept in the list and widget1 will be returned up exist. getWvalues is useful to capture the values for each widgets on the widget.
Value
This function returns a list of:
comp1 |
Description of ‘comp1’ |
comp2 |
Description of ‘comp2’ |
Author(s)
Jianhua Zhang
See Also
Examples
# Define the widgets
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, collapse=","), 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")
if(interactive()){
tt <- widgetRender(widget1, "try")
getWvalues(tt)
}else{
getWvalues(widget1)
}