where are these item added in the list (by default, at the end).
items
the items to add (either a vector for a single line, or a matrix
for more items).
...
further arguments to the action.
first
the 0-based first index to consider in the list.
last
the 0-based last index to consider in the list, or "end"
for using the last element of the list.
index
the 0-based index where to insert items in the list.
nb
a tk2notebook or ttk2notebook widget ("tclObj" object).
tab
the name (text) of a tab in a notebook.
state
the new state of the widget, or the state to inquiry.
theme
a theme to use (character string).
class
the class of the tk2widget (either the Tk class, like
TButton, or the name of the function that creates it, like
tk2button)
style
a character string with the name of the style to retrieve
default
the default value to return in case this style is not found
x
either a tk2widget object, or a character string with its class name.
Details
tk2column() manipulate columns of a tk2mclistbox widget,
tk2insert.multi() is used to insert multiple field entries in a
tk2mclistbox widget,
is.tk() determines if the tk package is loaded (on some platforms
it is possible to load the tcltk package without tk, for instance, in
batch mode). is.ttk() determines if 'ttk' widgets (styled widgets)
used by the tk2XXX() functions are available (you need Tk >= 8.5).
Note
In comparison with traditional Tk widgets, ttk proposes an advances mechanism
for styling the widgets with "themes". By default, it adapts to the current
platform (for instance, under Windows XP with XP theme, all widgets take the
appearance of XP themed widgets (even with custom themes applied!). Usual Tk
widgets are ALWAYS displayed in old-looking fashion under Windows XP. If you
want, you can switch dynamically to a different theme among those avaiable
(list them using tk2theme.list(), and switch to another one with
tk2theme(newtheme). This is most useful to see how your GUI elements
and dialog boxes look like on foreign systems. If you prefer, let's say, a
Unix look of the R GUI elements under Windows, these functions are also
useful. If you are more advanturous, you can even design your own themes (see
the tile documentation on the Tcl wiki).
Author(s)
Philippe Grosjean
See Also
tk2widgets, tk2tip
Examples
## Not run:
## These cannot be run by examples() but should be OK when pasted
## into an interactive R session with the tcltk package loaded
tt <- tktoplevel()
# A label with a image and some text
file <- system.file("gui", "SciViews.gif", package = "tcltk2")
# Make this a tk2image function...
Image <- tclVar()
tkimage.create("photo", Image, file = file)
tlabel <- tk2label(tt, image = Image,
text = "A label with an image")
tkpack(tlabel)
config(tlabel, compound = "left")
tlabel2 <- tk2label(tt, text = "A disabled label")
tkpack(tlabel2)
disabled(tlabel2) <- TRUE
fruits <- c("Apple", "Orange", "Banana")
tcombo <- tk2combobox(tt, values = fruits)
tkpack(tcombo)
tkinsert(tcombo, 0, "Apple")
## Buttons
tbut <- tk2button(tt, text = "Enabled")
tbut2 <- tk2button(tt, text = "Disabled")
tkpack(tbut, tbut2)
tkconfigure(tbut2, state = "disabled")
tcheck <- tk2checkbutton(tt, text = "Some checkbox")
tcheck2 <- tk2checkbutton(tt, text = "Disabled checkbox")
tkconfigure(tcheck2, state = "disabled")
tcheck3 <- tk2checkbutton(tt, text = "Disabled and selected")
tkpack(tcheck, tcheck2, tcheck3)
cbValue <- tclVar("1")
tkconfigure(tcheck3, variable=cbValue)
tkconfigure(tcheck3, state = "disabled")
tradio <- tk2radiobutton(tt, text = "Some radiobutton")
tradio2 <- tk2radiobutton(tt, text = "Disabled and checked")
tkpack(tradio, tradio2)
tkconfigure(tradio2, state = "checked")
tkconfigure(tradio2, state = "disabled")
## Menu allowing to change ttk theme
topMenu <- tkmenu(tt) # Create a menu
tkconfigure(tt, menu = topMenu) # Add it to the 'tt' window
themes <- tk2theme.list()
themeMenu <- tkmenu(topMenu, tearoff = FALSE)
if ("alt" %in% themes) tkadd(themeMenu, "command", label = "alt",
command = function() tk2theme("alt"))
if ("aqua" %in% themes) tkadd(themeMenu, "command", label = "aqua",
command = function() tk2theme("aqua"))
if ("clam" %in% themes) tkadd(themeMenu, "command", label = "clam",
command = function() tk2theme("clam"))
tkadd(themeMenu, "command", label = "clearlooks",
command = function() tk2theme("clearlooks"))
if ("classic" %in% themes) tkadd(themeMenu, "command", label = "classic",
command = function() tk2theme("classic"))
if ("default" %in% themes) tkadd(themeMenu, "command", label = "default",
command = function() tk2theme("default"))
tkadd(themeMenu, "command", label = "keramik",
command = function() tk2theme("keramik"))
tkadd(themeMenu, "command", label = "plastik",
command = function() tk2theme("plastik"))
tkadd(themeMenu, "command", label = "radiance (fonts change too)!",
command = function() tk2theme("radiance"))
if ("vista" %in% themes) tkadd(themeMenu, "command", label = "vista",
command = function() tk2theme("vista"))
if ("winnative" %in% themes) tkadd(themeMenu, "command", label = "winnative",
command = function() tk2theme("winnative"))
if ("xpnative" %in% themes) tkadd(themeMenu, "command", label = "xpnative",
command = function() tk2theme("xpnative"))
tkadd(themeMenu, "separator")
tkadd(themeMenu, "command", label = "Quit", command = function() tkdestroy(tt))
tkadd(topMenu, "cascade", label = "Theme", menu = themeMenu)
tkfocus(tt)
## End(Not run)