[37] | 1 | #!/bin/sh |
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| 2 | # the next line restarts using wish \ |
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| 3 | exec wish8.3 "$0" "$@" |
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| 4 | |
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| 5 | # rmt -- |
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| 6 | # This script implements a simple remote-control mechanism for |
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| 7 | # Tk applications. It allows you to select an application and |
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| 8 | # then type commands to that application. |
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| 9 | # |
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| 10 | # RCS: @(#) $Id: rmt,v 1.2 1998/09/14 18:23:29 stanton Exp $ |
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| 11 | |
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| 12 | wm title . "Tk Remote Controller" |
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| 13 | wm iconname . "Tk Remote" |
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| 14 | wm minsize . 1 1 |
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| 15 | |
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| 16 | # The global variable below keeps track of the remote application |
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| 17 | # that we're sending to. If it's an empty string then we execute |
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| 18 | # the commands locally. |
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| 19 | |
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| 20 | set app "local" |
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| 21 | |
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| 22 | # The global variable below keeps track of whether we're in the |
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| 23 | # middle of executing a command entered via the text. |
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| 24 | |
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| 25 | set executing 0 |
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| 26 | |
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| 27 | # The global variable below keeps track of the last command executed, |
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| 28 | # so it can be re-executed in response to !! commands. |
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| 29 | |
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| 30 | set lastCommand "" |
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| 31 | |
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| 32 | # Create menu bar. Arrange to recreate all the information in the |
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| 33 | # applications sub-menu whenever it is cascaded to. |
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| 34 | |
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| 35 | frame .menu -relief raised -bd 2 |
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| 36 | pack .menu -side top -fill x |
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| 37 | menubutton .menu.file -text "File" -menu .menu.file.m -underline 0 |
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| 38 | menu .menu.file.m |
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| 39 | .menu.file.m add cascade -label "Select Application" \ |
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| 40 | -menu .menu.file.m.apps -underline 0 |
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| 41 | .menu.file.m add command -label "Quit" -command "destroy ." -underline 0 |
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| 42 | menu .menu.file.m.apps -postcommand fillAppsMenu |
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| 43 | pack .menu.file -side left |
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| 44 | |
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| 45 | # Create text window and scrollbar. |
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| 46 | |
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| 47 | text .t -relief sunken -bd 2 -yscrollcommand ".s set" -setgrid true |
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| 48 | scrollbar .s -command ".t yview" |
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| 49 | pack .s -side right -fill both |
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| 50 | pack .t -side left |
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| 51 | |
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| 52 | # Create a binding to forward commands to the target application, |
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| 53 | # plus modify many of the built-in bindings so that only information |
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| 54 | # in the current command can be deleted (can still set the cursor |
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| 55 | # earlier in the text and select and insert; just can't delete). |
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| 56 | |
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| 57 | bindtags .t {.t Text . all} |
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| 58 | bind .t <Return> { |
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| 59 | .t mark set insert {end - 1c} |
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| 60 | .t insert insert \n |
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| 61 | invoke |
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| 62 | break |
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| 63 | } |
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| 64 | bind .t <Delete> { |
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| 65 | catch {.t tag remove sel sel.first promptEnd} |
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| 66 | if {[.t tag nextrange sel 1.0 end] == ""} { |
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| 67 | if [.t compare insert < promptEnd] { |
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| 68 | break |
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| 69 | } |
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| 70 | } |
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| 71 | } |
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| 72 | bind .t <BackSpace> { |
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| 73 | catch {.t tag remove sel sel.first promptEnd} |
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| 74 | if {[.t tag nextrange sel 1.0 end] == ""} { |
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| 75 | if [.t compare insert <= promptEnd] { |
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| 76 | break |
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| 77 | } |
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| 78 | } |
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| 79 | } |
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| 80 | bind .t <Control-d> { |
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| 81 | if [.t compare insert < promptEnd] { |
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| 82 | break |
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| 83 | } |
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| 84 | } |
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| 85 | bind .t <Control-k> { |
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| 86 | if [.t compare insert < promptEnd] { |
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| 87 | .t mark set insert promptEnd |
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| 88 | } |
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| 89 | } |
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| 90 | bind .t <Control-t> { |
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| 91 | if [.t compare insert < promptEnd] { |
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| 92 | break |
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| 93 | } |
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| 94 | } |
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| 95 | bind .t <Meta-d> { |
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| 96 | if [.t compare insert < promptEnd] { |
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| 97 | break |
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| 98 | } |
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| 99 | } |
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| 100 | bind .t <Meta-BackSpace> { |
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| 101 | if [.t compare insert <= promptEnd] { |
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| 102 | break |
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| 103 | } |
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| 104 | } |
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| 105 | bind .t <Control-h> { |
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| 106 | if [.t compare insert <= promptEnd] { |
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| 107 | break |
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| 108 | } |
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| 109 | } |
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| 110 | auto_load tkTextInsert |
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| 111 | proc tkTextInsert {w s} { |
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| 112 | if {$s == ""} { |
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| 113 | return |
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| 114 | } |
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| 115 | catch { |
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| 116 | if {[$w compare sel.first <= insert] |
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| 117 | && [$w compare sel.last >= insert]} { |
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| 118 | $w tag remove sel sel.first promptEnd |
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| 119 | $w delete sel.first sel.last |
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| 120 | } |
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| 121 | } |
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| 122 | $w insert insert $s |
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| 123 | $w see insert |
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| 124 | } |
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| 125 | |
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| 126 | .t tag configure bold -font {Courier 12 bold} |
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| 127 | |
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| 128 | # The procedure below is used to print out a prompt at the |
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| 129 | # insertion point (which should be at the beginning of a line |
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| 130 | # right now). |
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| 131 | |
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| 132 | proc prompt {} { |
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| 133 | global app |
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| 134 | .t insert insert "$app: " |
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| 135 | .t mark set promptEnd {insert} |
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| 136 | .t mark gravity promptEnd left |
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| 137 | .t tag add bold {promptEnd linestart} promptEnd |
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| 138 | } |
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| 139 | |
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| 140 | # The procedure below executes a command (it takes everything on the |
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| 141 | # current line after the prompt and either sends it to the remote |
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| 142 | # application or executes it locally, depending on "app". |
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| 143 | |
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| 144 | proc invoke {} { |
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| 145 | global app executing lastCommand |
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| 146 | set cmd [.t get promptEnd insert] |
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| 147 | incr executing 1 |
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| 148 | if [info complete $cmd] { |
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| 149 | if {$cmd == "!!\n"} { |
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| 150 | set cmd $lastCommand |
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| 151 | } else { |
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| 152 | set lastCommand $cmd |
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| 153 | } |
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| 154 | if {$app == "local"} { |
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| 155 | set result [catch [list uplevel #0 $cmd] msg] |
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| 156 | } else { |
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| 157 | set result [catch [list send $app $cmd] msg] |
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| 158 | } |
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| 159 | if {$result != 0} { |
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| 160 | .t insert insert "Error: $msg\n" |
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| 161 | } else { |
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| 162 | if {$msg != ""} { |
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| 163 | .t insert insert $msg\n |
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| 164 | } |
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| 165 | } |
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| 166 | prompt |
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| 167 | .t mark set promptEnd insert |
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| 168 | } |
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| 169 | incr executing -1 |
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| 170 | .t yview -pickplace insert |
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| 171 | } |
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| 172 | |
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| 173 | # The following procedure is invoked to change the application that |
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| 174 | # we're talking to. It also updates the prompt for the current |
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| 175 | # command, unless we're in the middle of executing a command from |
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| 176 | # the text item (in which case a new prompt is about to be output |
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| 177 | # so there's no need to change the old one). |
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| 178 | |
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| 179 | proc newApp appName { |
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| 180 | global app executing |
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| 181 | set app $appName |
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| 182 | if !$executing { |
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| 183 | .t mark gravity promptEnd right |
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| 184 | .t delete "promptEnd linestart" promptEnd |
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| 185 | .t insert promptEnd "$appName: " |
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| 186 | .t tag add bold "promptEnd linestart" promptEnd |
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| 187 | .t mark gravity promptEnd left |
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| 188 | } |
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| 189 | return {} |
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| 190 | } |
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| 191 | |
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| 192 | # The procedure below will fill in the applications sub-menu with a list |
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| 193 | # of all the applications that currently exist. |
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| 194 | |
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| 195 | proc fillAppsMenu {} { |
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| 196 | catch {.menu.file.m.apps delete 0 last} |
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| 197 | foreach i [lsort [winfo interps]] { |
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| 198 | .menu.file.m.apps add command -label $i -command [list newApp $i] |
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| 199 | } |
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| 200 | .menu.file.m.apps add command -label local -command {newApp local} |
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| 201 | } |
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| 202 | |
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| 203 | set app [winfo name .] |
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| 204 | prompt |
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| 205 | focus .t |
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