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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.
#
# RCS: @(#) $Id: console.tcl,v 1.1.4.3 1999/04/06 03:52:51 stanton Exp $
#
# Copyright (c) 1995-1997 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: history - remember partially written command
# tkConsoleInit --
# This procedure constructs and configures the console windows.
#
# Arguments:
# None.
proc tkConsoleInit {} {
global tcl_platform
if {![consoleinterp eval {set tcl_interactive}]} {
wm withdraw .
}
if {[string compare $tcl_platform(platform) "macintosh"]} {
set mod "Ctrl"
} else {
set mod "Cmd"
}
menu .menubar
.menubar add cascade -label File -menu .menubar.file -underline 0
.menubar add cascade -label Edit -menu .menubar.edit -underline 0
menu .menubar.file -tearoff 0
.menubar.file add command -label "Source..." -underline 0 \
-command tkConsoleSource
.menubar.file add command -label "Hide Console" -underline 0 \
-command {wm withdraw .}
if {[string compare $tcl_platform(platform) "macintosh"]} {
.menubar.file add command -label "Exit" -underline 1 -command exit
} else {
.menubar.file add command -label "Quit" -command exit -accel Cmd-Q
}
menu .menubar.edit -tearoff 0
.menubar.edit add command -label "Cut" -underline 2 \
-command { event generate .console <<Cut>> } -accel "$mod+X"
.menubar.edit add command -label "Copy" -underline 0 \
-command { event generate .console <<Copy>> } -accel "$mod+C"
.menubar.edit add command -label "Paste" -underline 1 \
-command { event generate .console <<Paste>> } -accel "$mod+V"
if {[string compare $tcl_platform(platform) "windows"]} {
.menubar.edit add command -label "Clear" -underline 2 \
-command { event generate .console <<Clear>> }
} else {
.menubar.edit add command -label "Delete" -underline 0 \
-command { event generate .console <<Clear>> } -accel "Del"
.menubar add cascade -label Help -menu .menubar.help -underline 0
menu .menubar.help -tearoff 0
.menubar.help add command -label "About..." -underline 0 \
-command tkConsoleAbout
}
. conf -menu .menubar
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 {![string compare $tcl_platform(platform) "macintosh"]} {
.console configure -font {Monaco 9 normal} -highlightthickness 0
}
tkConsoleBind .console
.console tag configure stderr -foreground red
.console tag configure stdin -foreground blue
focus .console
wm protocol . WM_DELETE_WINDOW { wm withdraw . }
wm title . "Console"
flush stdout
.console mark set output [.console index "end - 1 char"]
tkTextSetCursor .console end
.console mark set promptEnd insert
.console mark gravity promptEnd left
}
# tkConsoleSource --
#
# Prompts the user for a file to source in the main interpreter.
#
# Arguments:
# None.
proc tkConsoleSource {} {
set filename [tk_getOpenFile -defaultextension .tcl -parent . \
-title "Select a file to source" \
-filetypes {{"Tcl Scripts" .tcl} {"All Files" *}}]
if {[string compare $filename ""]} {
set cmd [list source $filename]
if {[catch {consoleinterp eval $cmd} result]} {
tkConsoleOutput stderr "$result\n"
}
}
}
# 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 {[llength $ranges]} {
set pos 0
while {[string compare [lindex $ranges $pos] ""]} {
set start [lindex $ranges $pos]
set end [lindex $ranges [incr pos]]
append cmd [.console get $start $end]
incr pos
}
}
if {![string compare $cmd ""]} {
tkConsolePrompt
} elseif {[info complete $cmd]} {
.console mark set output end
.console tag delete input
set result [consoleinterp record $cmd]
if {[string compare $result ""]} {
puts $result
}
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 {consoleinterp 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 {[string compare $cmd ""]} {
catch {consoleinterp 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 {![string compare $partial "normal"]} {
set temp [.console index "end - 1 char"]
.console mark set output end
if {[consoleinterp eval "info exists tcl_prompt1"]} {
consoleinterp eval "eval \[set tcl_prompt1\]"
} else {
puts -nonewline "% "
}
} else {
set temp [.console index output]
.console mark set output end
if {[consoleinterp eval "info exists tcl_prompt2"]} {
consoleinterp eval "eval \[set tcl_prompt2\]"
} else {
puts -nonewline "> "
}
}
flush stdout
.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} {
bindtags $win "$win Text . all"
# Ignore all Alt, Meta, and Control keypresses unless explicitly bound.
# Otherwise, if a widget binding for one of these is defined, the
# <KeyPress> class binding will also fire and insert the character,
# which is wrong. Ditto for <Escape>.
bind $win <Alt-KeyPress> {# nothing }
bind $win <Meta-KeyPress> {# nothing}
bind $win <Control-KeyPress> {# nothing}
bind $win <Escape> {# nothing}
bind $win <KP_Enter> {# nothing}
bind $win <Tab> {
tkConsoleInsert %W \t
focus %W
break
}
bind $win <Return> {
%W mark set insert {end - 1c}
tkConsoleInsert %W "\n"
tkConsoleInvoke
break
}
bind $win <Delete> {
if {[string compare [%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 {[string compare [%W tag nextrange sel 1.0 end] ""]} {
%W tag remove sel sel.first promptEnd
} else {
if {[%W compare insert <= promptEnd]} {
break
}
}
}
foreach left {Control-a Home} {
bind $win <$left> {
if {[%W compare insert < promptEnd]} {
tkTextSetCursor %W {insert linestart}
} else {
tkTextSetCursor %W promptEnd
}
break
}
}
foreach right {Control-e End} {
bind $win <$right> {
tkTextSetCursor %W {insert lineend}
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
}
}
foreach prev {Control-p Up} {
bind $win <$prev> {
tkConsoleHistory prev
break
}
}
foreach prev {Control-n Down} {
bind $win <$prev> {
tkConsoleHistory next
break
}
}
bind $win <Insert> {
catch {tkConsoleInsert %W [selection get -displayof %W]}
break
}
bind $win <KeyPress> {
tkConsoleInsert %W %A
break
}
foreach left {Control-b Left} {
bind $win <$left> {
if {[%W compare insert == promptEnd]} {
break
}
tkTextSetCursor %W insert-1c
break
}
}
foreach right {Control-f Right} {
bind $win <$right> {
tkTextSetCursor %W insert+1c
break
}
}
bind $win <F9> {
eval destroy [winfo child .]
if {![string compare $tcl_platform(platform) "macintosh"]} {
source -rsrc Console
} else {
source [file join $tk_library console.tcl]
}
}
bind $win <<Cut>> {
# Same as the copy event
if {![catch {set data [%W get sel.first sel.last]}]} {
clipboard clear -displayof %W
clipboard append -displayof %W $data
}
break
}
bind $win <<Copy>> {
if {![catch {set data [%W get sel.first sel.last]}]} {
clipboard clear -displayof %W
clipboard append -displayof %W $data
}
break
}
bind $win <<Paste>> {
catch {
set clip [selection get -displayof %W -selection CLIPBOARD]
set list [split $clip \n\r]
tkConsoleInsert %W [lindex $list 0]
foreach x [lrange $list 1 end] {
%W mark set insert {end - 1c}
tkConsoleInsert %W "\n"
tkConsoleInvoke
tkConsoleInsert %W $x
}
}
break
}
}
# tkConsoleInsert --
# Insert a string into a text at the point of the insertion cursor.
# If there is a selection in the text, and it covers the point of the
# insertion cursor, then delete the selection before inserting. Insertion
# is restricted to the prompt area.
#
# Arguments:
# w - The text window in which to insert the string
# s - The string to insert (usually just a single character)
proc tkConsoleInsert {w s} {
if {![string compare $s ""]} {
return
}
catch {
if {[$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. Don't call exit - that probably already
# happened. Just delete our window.
#
# Arguments:
# None.
proc tkConsoleExit {} {
destroy .
}
# tkConsoleAbout --
#
# This routine displays an About box to show Tcl/Tk version info.
#
# Arguments:
# None.
proc tkConsoleAbout {} {
global tk_patchLevel
tk_messageBox -type ok -message "Tcl for Windows
Copyright \251 1996 Sun Microsystems, Inc.
Tcl [info patchlevel]
Tk $tk_patchLevel"
}
# now initialize the console
tkConsoleInit
|