| # Copyright (C) 2000-2008 The R Core Team |
| |
| require(tcltk) || stop("tcltk support is absent") |
| local({ |
| have_ttk <- as.character(tcl("info", "tclversion")) >= "8.5" |
| |
| tt <- tktoplevel() |
| tkwm.title(tt, "R FAQ") |
| # Gave tiny font on some systems |
| # txt <- tktext(tt, bg="white", font="courier") |
| txt <- tktext(tt, bg="white") |
| scr <- if(have_ttk) ttkscrollbar(tt, command=function(...)tkyview(txt,...)) |
| else tkscrollbar(tt, repeatinterval=5, |
| command=function(...)tkyview(txt,...)) |
| ## Safest to make sure scr exists before setting yscrollcommand |
| tkconfigure(txt, yscrollcommand=function(...)tkset(scr,...)) |
| tkpack(txt, side="left", fill="both", expand=TRUE) |
| tkpack(scr, side="right", fill="y") |
| |
| chn <- tclopen(file.path(R.home("doc"), "FAQ")) |
| tkinsert(txt, "end", tclread(chn)) |
| tclclose(chn) |
| |
| tkconfigure(txt, state="disabled") |
| tkmark.set(txt,"insert","0.0") |
| tkfocus(txt) |
| |
| cat("******************************************************\n", |
| "The source for this demo can be found in the file:\n", |
| file.path(system.file(package = "tcltk"), "demo", "tkfaq.R"), |
| "\n******************************************************\n") |
| }) |
