Subversion Repositories or1k

#!/bin/sh

# the next line restarts using wish \

exec wish "$0" "$@"

# rmt --

# This script implements a simple remote-control mechanism for

# Tk applications.  It allows you to select an application and

# then type commands to that application.

#

# SCCS: @(#) rmt 1.10 96/06/24 16:42:38

wm title . "Tk Remote Controller"

wm iconname . "Tk Remote"

wm minsize . 1 1

# The global variable below keeps track of the remote application

# that we're sending to.  If it's an empty string then we execute

# the commands locally.

set app "local"

# The global variable below keeps track of whether we're in the

# middle of executing a command entered via the text.

set executing 0

# The global variable below keeps track of the last command executed,

# so it can be re-executed in response to !! commands.

set lastCommand ""

# Create menu bar.  Arrange to recreate all the information in the

# applications sub-menu whenever it is cascaded to.

frame .menu -relief raised -bd 2

pack .menu -side top -fill x

menubutton .menu.file -text "File" -menu .menu.file.m -underline 0

menu .menu.file.m

.menu.file.m add cascade -label "Select Application" \

        -menu .menu.file.m.apps -underline 0

.menu.file.m add command -label "Quit" -command "destroy ." -underline 0

menu .menu.file.m.apps  -postcommand fillAppsMenu

pack .menu.file -side left

# Create text window and scrollbar.

text .t -relief sunken -bd 2 -yscrollcommand ".s set" -setgrid true

scrollbar .s -command ".t yview"

pack .s -side right -fill both

pack .t -side left

# Create a binding to forward commands to the target application,

# plus modify many of the built-in bindings so that only information

# in the current command can be deleted (can still set the cursor

# earlier in the text and select and insert;  just can't delete).

bindtags .t {.t Text . all}

bind .t  {

    .t mark set insert {end - 1c}

    .t insert insert \n

    invoke

    break

}

bind .t  {

    catch {.t tag remove sel sel.first promptEnd}

    if {[.t tag nextrange sel 1.0 end] == ""} {

        if [.t compare insert < promptEnd] {

            break

        }

    }

}

bind .t  {

    catch {.t tag remove sel sel.first promptEnd}

    if {[.t tag nextrange sel 1.0 end] == ""} {

        if [.t compare insert <= promptEnd] {

            break

        }

    }

}

bind .t  {

    if [.t compare insert < promptEnd] {

        break

    }

}

bind .t  {

    if [.t compare insert < promptEnd] {

        .t mark set insert promptEnd

    }

}

bind .t  {

    if [.t compare insert < promptEnd] {

        break

    }

}

bind .t  {

    if [.t compare insert < promptEnd] {

        break

    }

}

bind .t  {

    if [.t compare insert <= promptEnd] {

        break

    }

}

bind .t  {

    if [.t compare insert <= promptEnd] {

        break

    }

}

auto_load tkTextInsert

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

        }

    }

    $w insert insert $s

    $w see insert

}

.t tag configure bold -font {Courier 12 bold}

# The procedure below is used to print out a prompt at the

# insertion point (which should be at the beginning of a line

# right now).

proc prompt {} {

    global app

    .t insert insert "$app: "

    .t mark set promptEnd {insert}

    .t mark gravity promptEnd left

    .t tag add bold {promptEnd linestart} promptEnd

}

# The procedure below executes a command (it takes everything on the

# current line after the prompt and either sends it to the remote

# application or executes it locally, depending on "app".

proc invoke {} {

    global app executing lastCommand

    set cmd [.t get promptEnd insert]

    incr executing 1

    if [info complete $cmd] {

        if {$cmd == "!!\n"} {

            set cmd $lastCommand

        } else {

            set lastCommand $cmd

        }

        if {$app == "local"} {

            set result [catch [list uplevel #0 $cmd] msg]

        } else {

            set result [catch [list send $app $cmd] msg]

        }

        if {$result != 0} {

            .t insert insert "Error: $msg\n"

        } else {

            if {$msg != ""} {

                .t insert insert $msg\n

            }

        }

        prompt

        .t mark set promptEnd insert

    }

    incr executing -1

    .t yview -pickplace insert

}

# The following procedure is invoked to change the application that

# we're talking to.  It also updates the prompt for the current

# command, unless we're in the middle of executing a command from

# the text item (in which case a new prompt is about to be output

# so there's no need to change the old one).

proc newApp appName {

    global app executing

    set app $appName

    if !$executing {

        .t mark gravity promptEnd right

        .t delete "promptEnd linestart" promptEnd

        .t insert promptEnd "$appName: "

        .t tag add bold "promptEnd linestart" promptEnd

        .t mark gravity promptEnd left

    }

    return {}

}

# The procedure below will fill in the applications sub-menu with a list

# of all the applications that currently exist.

proc fillAppsMenu {} {

    catch {.menu.file.m.apps delete 0 last}

    foreach i [lsort [winfo interps]] {

        .menu.file.m.apps add command -label $i -command [list newApp $i]

    }

    .menu.file.m.apps add command -label local -command {newApp local}

}

set app [winfo name .]

prompt

focus .t