#!/usr/bin/wish
#
# A GUI shell for SQLite
#
# The following code is slighly modified from the original. See comments
# for the modifications...
############################################################################
# A console widget for Tcl/Tk. Invoke console:create with a window name,
# a prompt string, and a title to get a new top-level window that allows
# the user to enter tcl commands. This is mainly useful for testing and
# debugging.
#
# Copyright (C) 1998, 1999 D. Richard Hipp
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Author contact information:
# drh@acm.org
# http://www.hwaci.com/drh/
# Create a console widget named $w. The prompt string is $prompt.
# The title at the top of the window is $title
#
proc console:create {w prompt title} {
upvar #0 $w.t v
if {[winfo exists $w]} {destroy $w}
if {[info exists v]} {unset v}
toplevel $w
wm title $w $title
wm iconname $w $title
frame $w.mb -bd 2 -relief raised
pack $w.mb -side top -fill x
menubutton $w.mb.file -text File -menu $w.mb.file.m
menubutton $w.mb.edit -text Edit -menu $w.mb.edit.m
pack $w.mb.file $w.mb.edit -side left -padx 8 -pady 1
set m [menu $w.mb.file.m]
# $m add command -label {Source...} -command "console:SourceFile $w.t"
# $m add command -label {Save As...} -command "console:SaveFile $w.t"
# $m add separator
$m add command -label {Close} -command "destroy $w"
$m add command -label {Exit} -command exit
console:create_child $w $prompt $w.mb.edit.m
}
# This routine creates a console as a child window within a larger
# window. It also creates an edit menu named "$editmenu" if $editmenu!="".
# The calling function is responsible for posting the edit menu.
#
proc console:create_child {w prompt editmenu} {
upvar #0 $w.t v
if {$editmenu!=""} {
set m [menu $editmenu]
$m add command -label Cut -command "console:Cut $w.t"
$m add command -label Copy -command "console:Copy $w.t"
$m add command -label Paste -command "console:Paste $w.t"
$m add command -label {Clear Screen} -command "console:Clear $w.t"
$m add separator
$m add command -label {Source...} -command "console:SourceFile $w.t"
$m add command -label {Save As...} -command "console:SaveFile $w.t"
catch {$editmenu config -postcommand "console:EnableEditMenu $w"}
}
scrollbar $w.sb -orient vertical -command "$w.t yview"
pack $w.sb -side right -fill y
text $w.t -font fixed -yscrollcommand "$w.sb set"
pack $w.t -side right -fill both -expand 1
bindtags $w.t Console
set v(editmenu) $editmenu
set v(text) $w.t
set v(history) 0
set v(historycnt) 0
set v(current) -1
set v(prompt) $prompt
set v(prior) {}
set v(plength) [string length $v(prompt)]
set v(x) 0
set v(y) 0
$w.t mark set insert end
$w.t tag config ok -foreground blue
$w.t tag config err -foreground red
$w.t insert end $v(prompt)
$w.t mark set out 1.0
catch {rename puts console:oldputs$w}
proc puts args [format {
if {![winfo exists %s]} {
rename puts {}
rename console:oldputs%s puts
return [uplevel #0 puts $args]
}
switch -glob -- "[llength $args] $args" {
{1 *} {
set msg [lindex $args 0]\n
set tag ok
}
{2 stdout *} {
set msg [lindex $args 1]\n
set tag ok
}
{2 stderr *} {
set msg [lindex $args 1]\n
set tag err
}
{2 -nonewline *} {
set msg [lindex $args 1]
set tag ok
}
{3 -nonewline stdout *} {
set msg [lindex $args 2]
set tag ok
}
{3 -nonewline stderr *} {
set msg [lindex $args 2]
set tag err
}
default {
uplevel #0 console:oldputs%s $args
return
}
}
console:Puts %s $msg $tag
} $w $w $w $w.t]
after idle "focus $w.t"
}
bind Console <1> {console:Button1 %W %x %y}
bind Console <B1-Motion> {console:B1Motion %W %x %y}
bind Console <B1-Leave> {console:B1Leave %W %x %y}
bind Console <B1-Enter> {console:cancelMotor %W}
bind Console <ButtonRelease-1> {console:cancelMotor %W}
bind Console <KeyPress> {console:Insert %W %A}
bind Console <Left> {console:Left %W}
bind Console <Control-b> {console:Left %W}
bind Console <Right> {console:Right %W}
bind Console <Control-f> {console:Right %W}
bind Console <BackSpace> {console:Backspace %W}
bind Console <Control-h> {console:Backspace %W}
bind Console <Delete> {console:Delete %W}
bind Console <Control-d> {console:Delete %W}
bind Console <Home> {console:Home %W}
bind Console <Control-a> {console:Home %W}
bind Console <End> {console:End %W}
bind Console <Control-e> {console:End %W}
bind Console <Return> {console:Enter %W}
bind Console <KP_Enter> {console:Enter %W}
bind Console <Up> {console:Prior %W}
bind Console <Control-p> {console:Prior %W}
bind Console <Down> {console:Next %W}
bind Console <Control-n> {console:Next %W}
bind Console <Control-k> {console:EraseEOL %W}
bind Console <<Cut>> {console:Cut %W}
bind Console <<Copy>> {console:Copy %W}
bind Console <<Paste>> {console:Paste %W}
bind Console <<Clear>> {console:Clear %W}
# Insert test at the "out" mark. The "out" mark is always
# before the input line. New text appears on the line prior
# to the current input line.
#
proc console:Puts {w t tag} {
set nc [string length $t]
set endc [string index $t [expr $nc-1]]
if {$endc=="\n"} {
if {[$w index out]<[$w index {insert linestart}]} {
$w insert out [string range $t 0 [expr $nc-2]] $tag
$w mark set out {out linestart +1 lines}
} else {
$w insert out $t $tag
}
} else {
if {[$w index out]<[$w index {insert linestart}]} {
$w insert out $t $tag
} else {
$w insert out $t\n $tag
$w mark set out {out -1 char}
}
}
$w yview insert
}
# Insert a single character at the insertion cursor
#
proc console:Insert {w a} {
$w insert insert $a
$w yview insert
}
# Move the cursor one character to the left
#
proc console:Left {w} {
upvar #0 $w v
scan [$w index insert] %d.%d row col
if {$col>$v(plength)} {
$w mark set insert "insert -1c"
}
}
# Erase the character to the left of the cursor
#
proc console:Backspace {w} {
upvar #0 $w v
scan [$w index insert] %d.%d row col
if {$col>$v(plength)} {
$w delete {insert -1c}
}
}
# Erase to the end of the line
#
proc console:EraseEOL {w} {
upvar #0 $w v
scan [$w index insert] %d.%d row col
if {$col>=$v(plength)} {
$w delete insert {insert lineend}
}
}
# Move the cursor one character to the right
#
proc console:Right {w} {
$w mark set insert "insert +1c"
}
# Erase the character to the right of the cursor
#
proc console:Delete w {
$w delete insert
}
# Move the cursor to the beginning of the current line
#
proc console:Home w {
upvar #0 $w v
scan [$w index insert] %d.%d row col
$w mark set insert $row.$v(plength)
}
# Move the cursor to the end of the current line
#
proc console:End w {
$w mark set insert {insert lineend}
}
# Called when "Enter" is pressed. Do something with the line
# of text that was entered.
#
proc console:Enter w {
upvar #0 $w v
scan [$w index insert] %d.%d row col
set start $row.$v(plength)
set line [$w get $start "$start lineend"]
if {$v(historycnt)>0} {
set last [lindex $v(history) [expr $v(historycnt)-1]]
if {[string compare $last $line]} {
lappend v(history) $line
incr v(historycnt)
}
} else {
set v(history) [list $line]
set v(historycnt) 1
}
set v(current) $v(historycnt)
$w insert end \n
$w mark set out end
if {$v(prior)==""} {
set cmd $line
} else {
set cmd $v(prior)\n$line
}
##### Original
# if {[info complete $cmd]} { }
# set rc [catch {uplevel #0 $cmd} res]
##### New
global DB
if {[$DB complete $cmd]} {
set CODE {}
set rc [catch {$DB eval $cmd RESULT $CODE}]
##### End Of Changes
if {![winfo exists $w]} return
if {$rc} {
$w insert end $res\n err
} elseif {[string length $res]>0} {
$w insert end $res\n ok
}
set v(prior) {}
$w insert end $v(prompt)
} else {
set v(prior) $cmd
regsub -all {[^ ]} $v(prompt) . x
$w insert end $x
}
$w mark set insert end
$w mark set out {insert linestart}
$w yview insert
}
# Change the line to the previous line
#
proc console:Prior w {
upvar #0 $w v
if {$v(current)<=0} return
incr v(current) -1
set line [lindex $v(history) $v(current)]
console:SetLine $w $line
}
# Change the line to the next line
#
proc console:Next w {
upvar #0 $w v
if {$v(current)>=$v(historycnt)} return
incr v(current) 1
set line [lindex $v(history) $v(current)]
console:SetLine $w $line
}
# Change the contents of the entry line
#
proc console:SetLine {w line} {
upvar #0 $w v
scan [$w index insert] %d.%d row col
set start $row.$v(plength)
$w delete $start end
$w insert end $line
$w mark set insert end
$w yview insert
}
# Called when the mouse button is pressed at position $x,$y on
# the console widget.
#
proc console:Button1 {w x y} {
global tkPriv
upvar #0 $w v
set v(mouseMoved) 0
set v(pressX) $x
set p [console:nearestBoundry $w $x $y]
scan [$w index insert] %d.%d ix iy
scan $p %d.%d px py
if {$px==$ix} {
$w mark set insert $p
}
$w mark set anchor $p
focus $w
}
# Find the boundry between characters that is nearest
# to $x,$y
#
proc console:nearestBoundry {w x y} {
set p [$w index @$x,$y]
set bb [$w bbox $p]
if {![string compare $bb ""]} {return $p}
if {($x-[lindex $bb 0])<([lindex $bb 2]/2)} {return $p}
$w index "$p + 1 char"
}
# This routine extends the selection to the point specified by $x,$y
#
proc console:SelectTo {w x y} {
upvar #0 $w v
set cur [console:nearestBoundry $w $x $y]
if {[catch {$w index anchor}]} {
$w mark set anchor $cur
}
set anchor [$w index anchor]
if {[$w compare $cur != $anchor] || (abs($v(pressX) - $x) >= 3)} {
if {$v(mouseMoved)==0} {
$w tag remove sel 0.0 end
}
set v(mouseMoved) 1
}
if {[$w compare $cur < anchor]} {
set first $cur
set last anchor
} else {
set first anchor
set last $cur
}
if {$v(mouseMoved)} {
$w tag remove sel 0.0 $first
$w tag add sel $first $last
$w tag remove sel $last end
update idletasks
}
}
# Called whenever the mouse moves while button-1 is held down.
#
proc console:B1Motion {w x y} {
upvar #0 $w v
set v(y) $y
set v(x) $x
console:SelectTo $w $x $y
}
# Called whenever the mouse leaves the boundries of the widget
# while button 1 is held down.
#
proc console:B1Leave {w x y} {
upvar #0 $w v
set v(y) $y
set v(x) $x
console:motor $w
}
# This routine is called to automatically scroll the window when
# the mouse drags offscreen.
#
proc console:motor w {
upvar #0 $w v
if {![winfo exists $w]} return
if {$v(y)>=[winfo height $w]} {
$w yview scroll 1 units
} elseif {$v(y)<0} {
$w yview scroll -1 units
} else {
return
}
console:SelectTo $w $v(x) $v(y)
set v(timer) [after 50 console:motor $w]
}
# This routine cancels the scrolling motor if it is active
#
proc console:cancelMotor w {
upvar #0 $w v
catch {after cancel $v(timer)}
catch {unset v(timer)}
}
# Do a Copy operation on the stuff currently selected.
#
proc console:Copy w {
if {![catch {set text [$w get sel.first sel.last]}]} {
clipboard clear -displayof $w
clipboard append -displayof $w $text
}
}
# Return 1 if the selection exists and is contained
# entirely on the input line. Return 2 if the selection
# exists but is not entirely on the input line. Return 0
# if the selection does not exist.
#
proc console:canCut w {
set r [catch {
scan [$w index sel.first] %d.%d s1x s1y
scan [$w index sel.last] %d.%d s2x s2y
scan [$w index insert] %d.%d ix iy
}]
if {$r==1} {return 0}
if {$s1x==$ix && $s2x==$ix} {return 1}
return 2
}
# Do a Cut operation if possible. Cuts are only allowed
# if the current selection is entirely contained on the
# current input line.
#
proc console:Cut w {
if {[console:canCut $w]==1} {
console:Copy $w
$w delete sel.first sel.last
}
}
# Do a paste opeation.
#
proc console:Paste w {
if {[console:canCut $w]==1} {
$w delete sel.first sel.last
}
if {[catch {selection get -displayof $w -selection CLIPBOARD} topaste]} {
return
}
set prior 0
foreach line [split $topaste \n] {
if {$prior} {
console:Enter $w
update
}
set prior 1
$w insert insert $line
}
}
# Enable or disable entries in the Edit menu
#
proc console:EnableEditMenu w {
upvar #0 $w.t v
set m $v(editmenu)
if {$m=="" || ![winfo exists $m]} return
switch [console:canCut $w.t] {
0 {
$m entryconf Copy -state disabled
$m entryconf Cut -state disabled
}
1 {
$m entryconf Copy -state normal
$m entryconf Cut -state normal
}
2 {
$m entryconf Copy -state normal
$m entryconf Cut -state disabled
}
}
}
# Prompt for the user to select an input file, the "source" that file.
#
proc console:SourceFile w {
set types {
{{TCL Scripts} {.tcl}}
{{All Files} *}
}
set f [tk_getOpenFile -filetypes $types -title "TCL Script To Source..."]
if {$f!=""} {
uplevel #0 source $f
}
}
# Prompt the user for the name of a writable file. Then write the
# entire contents of the console screen to that file.
#
proc console:SaveFile w {
set types {
{{Text Files} {.txt}}
{{All Files} *}
}
set f [tk_getSaveFile -filetypes $types -title "Write Screen To..."]
if {$f!=""} {
if {[catch {open $f w} fd]} {
tk_messageBox -type ok -icon error -message $fd
} else {
puts $fd [string trimright [$w get 1.0 end] \n]
close $fd
}
}
}
# Erase everything from the console above the insertion line.
#
proc console:Clear w {
$w delete 1.0 {insert linestart}
}
# Start the console
#
# console:create {.@console} {% } {Tcl/Tk Console}
###############################################################################
if {[info command sqlite]==""} {
load ./tclsqlite.so sqlite
}
proc set_title {title} {
if {$title==""} {
set main SQLite
} else {
set main "SQLite - $title"
}
wm title . $main
wm iconname . SQLite
}
set_title {}
frame .mb -bd 1 -relief raised
pack .mb -side top -fill x
menubutton .mb.file -text File -underline 0 -menu .mb.file.m
pack .mb.file -side left -padx 5
set m [menu .mb.file.m]
$m add separator
$m add command -label Exit -command exit
menubutton .mb.edit -text Edit -underline 0 -menu .mb.edit.m
pack .mb.edit -side left -padx 5
#menu .mb.edit.m
frame .f
pack .f -side top -fill both -expand 1
console:create_child .f {sqlite> } .mb.edit.m