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- # console.tcl --
- #
- # This code constructs the console window for an application. It
- # can be used by non-unix systems that do not have built-in support
- # for shells.
- #
- # @(#) console.tcl 1.16 95/10/03 22:14:30
- #
- # Copyright (c) 1995 Sun Microsystems, Inc.
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
-
- # TODO: fix history - last event skiped - change history command
- # or use "history event [expr [history nextid] - 1]]"
- # TODO: history - remember partially written command
- # TODO: get better default size for console -
- # auto configure based on font size???
-
- # tkConsoleInit --
- # This procedure constructs and configures the console windows.
- #
- # Arguments:
- # None.
-
- proc tkConsoleInit {} {
- global tcl_platform
-
- text .console -yscrollcommand ".sb set" -setgrid true
- scrollbar .sb -command ".console yview"
- pack .sb -side right -fill both
- pack .console -fill both -expand 1 -side left
- if {$tcl_platform(platform) == "macintosh"} {
- after idle {.console configure -font {Monaco 9 normal}}
- }
-
- tkConsoleBind .console
-
- .console tag configure stderr -foreground red
- .console tag configure stdout -foreground black
- .console tag configure stdin -foreground blue
-
- focus .console
-
- wm protocol . WM_DELETE_WINDOW { wm withdraw . }
- tkConsolePrompt
- }
-
- # tkConsoleInvoke --
- # Processes the command line input. If the command is complete it
- # is evaled in the main interpreter. Otherwise, the continuation
- # prompt is added and more input may be added.
- #
- # Arguments:
- # None.
-
- proc tkConsoleInvoke {args} {
- set ranges [.console tag ranges input]
- set cmd ""
- if {$ranges != ""} {
- set pos 0
- while {[lindex $ranges $pos] != ""} {
- set start [lindex $ranges $pos]
- set end [lindex $ranges [incr pos]]
- append cmd [.console get $start $end]
- incr pos
- }
- }
- if {$cmd == ""} {
- tkConsolePrompt
- } elseif [info complete $cmd] {
- .console mark set output end
- .console tag delete input
- set result [interp record $cmd]
- if {$result != ""} {
- .console insert insert "$result\n"
- }
- tkConsoleHistory reset
- tkConsolePrompt
- } else {
- tkConsolePrompt partial
- }
- .console yview -pickplace insert
- }
-
- # tkConsoleHistory --
- # This procedure implements command line history for the
- # console. In general is evals the history command in the
- # main interpreter to obtain the history. The global variable
- # histNum is used to store the current location in the history.
- #
- # Arguments:
- # cmd - Which action to take: prev, next, reset.
-
- set histNum 1
- proc tkConsoleHistory {cmd} {
- global histNum
-
- switch $cmd {
- prev {
- incr histNum -1
- if {$histNum == 0} {
- set cmd {history event [expr [history nextid] -1]}
- } else {
- set cmd "history event $histNum"
- }
- if {[catch {interp eval $cmd} cmd]} {
- incr histNum
- return
- }
- .console delete promptEnd end
- .console insert promptEnd $cmd {input stdin}
- }
- next {
- incr histNum
- if {$histNum == 0} {
- set cmd {history event [expr [history nextid] -1]}
- } elseif {$histNum > 0} {
- set cmd ""
- set histNum 1
- } else {
- set cmd "history event $histNum"
- }
- if {$cmd != ""} {
- catch {interp eval $cmd} cmd
- }
- .console delete promptEnd end
- .console insert promptEnd $cmd {input stdin}
- }
- reset {
- set histNum 1
- }
- }
- }
-
- # tkConsolePrompt --
- # This procedure draws the prompt. If tcl_prompt1 or tcl_prompt2
- # exists in the main interpreter it will be called to generate the
- # prompt. Otherwise, a hard coded default prompt is printed.
- #
- # Arguments:
- # partial - Flag to specify which prompt to print.
-
- proc tkConsolePrompt {{partial normal}} {
- if {$partial == "normal"} {
- set temp [.console index "end - 1 char"]
- .console mark set output end
- if [interp eval "info exists tcl_prompt1"] {
- interp eval "eval \[set tcl_prompt1\]"
- } else {
- puts -nonewline "tcl> "
- }
- } else {
- set temp [.console index output]
- .console mark set output end
- if [interp eval "info exists tcl_prompt2"] {
- interp eval "eval \[set tcl_prompt2\]"
- } else {
- puts -nonewline "> "
- }
- }
- .console mark set output $temp
- tkTextSetCursor .console end
- .console mark set promptEnd insert
- .console mark gravity promptEnd left
- }
-
- # tkConsoleBind --
- # This procedure first ensures that the default bindings for the Text
- # class have been defined. Then certain bindings are overridden for
- # the class.
- #
- # Arguments:
- # None.
-
- proc tkConsoleBind {win} {
- catch {tkTextBind dummy_arg}
-
- bindtags $win "$win Text . all"
-
- bind $win <Return> {
- %W mark set insert {end - 1c}
- tkTextInsert %W "\n"
- tkConsoleInvoke
- break
- }
- bind $win <Delete> {
- if {[%W tag nextrange sel 1.0 end] != ""} {
- %W tag remove sel sel.first promptEnd
- } else {
- if [%W compare insert < promptEnd] {
- break
- }
- }
- }
- bind $win <BackSpace> {
- if {[%W tag nextrange sel 1.0 end] != ""} {
- %W tag remove sel sel.first promptEnd
- } else {
- if [%W compare insert <= promptEnd] {
- break
- }
- }
- }
- bind $win <Control-a> {
- if [%W compare insert < promptEnd] {
- tkTextSetCursor %W {insert linestart}
- } else {
- tkTextSetCursor %W promptEnd
- }
- break
- }
- bind $win <Control-d> {
- if [%W compare insert < promptEnd] {
- break
- }
- }
- bind $win <Control-k> {
- if [%W compare insert < promptEnd] {
- %W mark set insert promptEnd
- }
- }
- bind $win <Control-t> {
- if [%W compare insert < promptEnd] {
- break
- }
- }
- bind $win <Meta-d> {
- if [%W compare insert < promptEnd] {
- break
- }
- }
- bind $win <Meta-BackSpace> {
- if [%W compare insert <= promptEnd] {
- break
- }
- }
- bind $win <Control-h> {
- if [%W compare insert <= promptEnd] {
- break
- }
- }
- bind $win <Control-p> {
- tkConsoleHistory prev
- break
- }
- bind $win <Control-n> {
- tkConsoleHistory next
- break
- }
- bind $win <Control-v> {
- if [%W compare insert > promptEnd] {
- catch {
- %W insert insert [selection get -displayof %W] {input stdin}
- %W see insert
- }
- }
- break
- }
- bind $win <F9> {
- eval destroy [winfo child .]
- source $tk_library/console.tcl
- }
- foreach copy {F16 Meta-w Control-i} {
- bind Text <$copy> {
- if {[selection own -displayof %W] == "%W"} {
- clipboard clear -displayof %W
- catch {
- clipboard append -displayof %W [selection get -displayof %W]
- }
- }
- break
- }
- }
- foreach paste {F18 Control-y} {
- bind $win <$paste> {
- catch {
- set clip [selection get -displayof %W -selection CLIPBOARD]
- set list [split $clip \n\r]
- tkTextInsert %W [lindex $list 0]
- foreach x [lrange $list 1 end] {
- %W mark set insert {end - 1c}
- tkTextInsert %W "\n"
- tkConsoleInvoke
- tkTextInsert %W $x
- }
- }
- break
- }
- }
- }
-
- # Replace the default implementation of tkTextInsert so that we can
- # attach tags to user input
-
- proc tkTextInsert {w s} {
- if {$s == ""} {
- return
- }
- catch {
- if {[$w compare sel.first <= insert]
- && [$w compare sel.last >= insert]} {
- $w tag remove sel sel.first promptEnd
- $w delete sel.first sel.last
- }
- }
- if {[$w compare insert < promptEnd]} {
- $w mark set insert end
- }
- $w insert insert $s {input stdin}
- $w see insert
- }
-
- # tkConsoleOutput --
- #
- # This routine is called directly by ConsolePutsCmd to cause a string
- # to be displayed in the console.
- #
- # Arguments:
- # dest - The output tag to be used: either "stderr" or "stdout".
- # string - The string to be displayed.
-
- proc tkConsoleOutput {dest string} {
- .console insert output $string $dest
- .console see insert
- }
-
- # tkConsoleExit --
- #
- # This routine is called by ConsoleEventProc when the main window of
- # the application is destroyed.
- #
- # Arguments:
- # None.
-
- proc tkConsoleExit {} {
- exit
- }
-
- # now initialize the console
-
- tkConsoleInit
-