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ovalidate.tcl
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ovalidate.tcl
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# -*- tcl -*- Copyright (c) 2012-2024 Andreas Kupries
# # ## ### ##### ######## ############# #####################
## Option handling, sub layer: Types & Validation.
# # ## ### ##### ######## ############# #####################
## Export (internals - recipe definitions, other utilities)
namespace eval ::kettle::ovalidate {
namespace export {[a-z]*}
namespace ensemble create
}
# # ## ### ##### ######## ############# #####################
proc ::kettle::ovalidate::Def {name script guiscript {label {}}} {
if {$label eq {}} { set label $name }
namespace eval ::kettle::ovalidate::${name} {
namespace export help check gui
namespace ensemble create
}
interp alias {} ::kettle::ovalidate::${name}::Bad {} ::kettle::ovalidate::Bad
proc ::kettle::ovalidate::${name}::check {v} $script
proc ::kettle::ovalidate::${name}::help {} [list return $label]
proc ::kettle::ovalidate::${name}::gui {win option} $guiscript
return
}
# # ## ### ##### ######## ############# #####################
## API
proc ::kettle::ovalidate::enum {choices cmd args} {
Enum::${cmd} $choices {*}$args
}
namespace eval ::kettle::ovalidate::Enum {
namespace import ::kettle::ovalidate::Bad
}
interp alias {} ::kettle::ovalidate::Enum::Bad {} ::kettle::ovalidate::Bad
proc ::kettle::ovalidate::Enum::check {choices v} {
if {$v in $choices} return
set c [linsert '[join $choices {', '}]' end-1 or]
Bad "Expected one of $c, got \"$v\""
}
proc ::kettle::ovalidate::Enum::help {choices} {
return [join $choices |]
}
proc ::kettle::ovalidate::Enum::gui {choices win option} {
ttk::combobox $win -values $choices
$win insert 0 [kettle option get $option]
$win configure -state readonly
bind $win <<ComboboxSelected>> [lambda {win option} {
kettle option set $option [$win get]
} $win $option]
}
# # ## ### ##### ######## ############# #####################
proc ::kettle::ovalidate::range {min max cmd args} {
Range::${cmd} $min $max {*}$args
}
namespace eval ::kettle::ovalidate::Range {
namespace import ::kettle::ovalidate::Bad
}
interp alias {} ::kettle::ovalidate::Range::Bad {} ::kettle::ovalidate::Bad
proc ::kettle::ovalidate::Range::check {min max v} {
if {[string is int -strict $v] && ($min <= $v) && ($v <= $max)} return
Bad "Expected integer in \[$min...$max\], but got \"$v\""
}
proc ::kettle::ovalidate::Range::help {min max} {
return "$min $max"
}
proc ::kettle::ovalidate::Range::gui {min max win option} {
variable last
ttk::spinbox $win \
-wrap 0 -from $min -to $max -increment 1 \
-format %0.0f \
-validate focusout \
-validatecommand \
[lambda@ ::kettle::ovalidate::Range {win option} {
variable last
set v [$win get]
if {[catch {
kettle option set $option $v
}]} {
$win set [dict get $last $win]
return 0
} else {
dict set last $win $v
return 1
}
} $win $option] \
-command \
[lambda@ ::kettle::ovalidate::Range {win option args} {
variable last
dict set last $win [$win get]
return
} $win $option]
set v [kettle option get $option]
$win set $v
$win validate
dict set last $win $v
kettle option onchange $option {win} {
$win set [kettle option get $option]
$win validate
} $win
return
}
# # ## ### ##### ######## ############# #####################
apply {{} {
Def any {
return
} {
ttk::entry $win \
-validate focusout \
-validatecommand [lambda {win option} {
kettle option set $option [$win get]
return 1
} $win $option]
$win insert 0 [kettle option get $option]
kettle option onchange $option {win} {
$win delete 0 end
$win insert 0 [kettle option get $option]
} $win
return
}
Def string {
return
} {
ttk::entry $win \
-validate focusout \
-validatecommand [lambda {win option} {
kettle option set $option [$win get]
return 1
} $win $option]
$win insert 0 [kettle option get $option]
kettle option onchange $option {win} {
$win delete 0 end
$win insert 0 [kettle option get $option]
} $win
return
}
Def boolean {
if {[string is boolean -strict $v]} return
Bad "Expected boolean, but got \"$v\""
} {
ttk::checkbutton $win \
-command [lambda {win option} {
kettle option set $option [expr {"selected" in [$win state]}]
} $win $option]
if {[kettle option get $option]} {
$win state selected
} else {
$win state !selected
}
kettle option onchange $option {win} {
if {[kettle option get $option]} {
$win state selected
} else {
$win state !selected
}
} $win
return
}
Def listsimple {
if {[string is list -strict $v]} return
Bad "Expected tcl list, got \"$v\""
} {
ttk::button $win -text ... \
-command [lambda {win option} {
package require widget::listsimple
package require widget::dialog
set ::$option [kettle option get $option]
widget::dialog $win.d \
-title "Edit $option" \
-parent $win \
-type okcancel
widget::listsimple $win.d.l \
-listvariable ::$option
$win.d setwidget $win.d.l
set btn [$win.d display]
set v [set ::$option]
unset ::$option
if {$btn eq "cancel"} return
kettle option set $option $v
return
} $win $option]
return
}
Def directory return {
ttk::frame $win
ttk::entry $win.e \
-validate focusout \
-validatecommand [lambda {win option} {
kettle option set $option [$win.e get]
return 1
} $win $option]
ttk::button $win.b -text ... -command [lambda {win option} {
set dir [kettle path norm [$win.e get]]
set dir [tk_chooseDirectory \
-parent $win \
-initialdir $dir \
-title "Choose $option"]
if {$dir eq {}} return
$win.e delete 0 end
$win.e insert 0 $dir
$win.e validate
} $win $option]
pack $win.e -side left -expand 1 -fill both
pack $win.b -side right -expand 0 -fill both
$win.e insert 0 [kettle option get $option]
kettle option onchange $option {win} {
$win.e delete 0 end
$win.e insert 0 [kettle option get $option]
$win.e validate
} $win
return
}
Def readable.file {
if {$v eq {}} return;# default
if {[file isfile $v] &&
[file readable $v]} return
Bad "Expected readable file, but got \"$v\""
} {
ttk::frame $win
ttk::entry $win.e \
-validate focusout \
-validatecommand [lambda {win option} {
kettle option set $option [$win.e get]
return 1
} $win $option]
ttk::button $win.b -text ... -command [lambda {win option} {
set path [kettle path norm [$win.e get]]
set path [tk_getOpenFile \
-parent $win \
-multiple 0 \
-initialdir [file dirname $path] \
-initialfile $path \
-title "Choose $option"]
if {$path eq {}} return
$win.e delete 0 end
$win.e insert 0 $path
$win.e validate
} $win $option]
pack $win.e -side left -expand 1 -fill both
pack $win.b -side right -expand 0 -fill both
$win.e insert 0 [kettle option get $option]
kettle option onchange $option {win} {
$win.e delete 0 end
$win.e insert 0 [kettle option get $option]
$win.e validate
} $win
return
} path/to/readable/file
Def path return {
ttk::frame $win
ttk::entry $win.e \
-validate focusout \
-validatecommand [lambda {win option} {
kettle option set $option [$win.e get]
return 1
} $win $option]
ttk::button $win.b -text ... -command [lambda {win option} {
set path [kettle path norm [$win.e get]]
set path [tk_getOpenFile \
-parent $win \
-multiple 0 \
-initialdir [file dirname $path] \
-initialfile $path \
-title "Choose $option"]
if {$path eq {}} return
$win.e delete 0 end
$win.e insert 0 $path
$win.e validate
} $win $option]
pack $win.e -side left -expand 1 -fill both
pack $win.b -side right -expand 0 -fill both
$win.e insert 0 [kettle option get $option]
kettle option onchange $option {win} {
$win.e delete 0 end
$win.e insert 0 [kettle option get $option]
$win.e validate
} $win
return
}
} ::kettle::ovalidate}
proc ::kettle::ovalidate::Bad {msg} {
return -code error -errorcode {KETTLE OPTION VETO} $msg
}
# # ## ### ##### ######## ############# #####################
return