Прога / tina-2.5.2 / tcl / lib / tk8.3 / demos / clrpick

# clrpick.tcl --
#
# This demonstration script prompts the user to select a color.
#
# RCS: @(#) $Id: clrpick.tcl,v 1.2 1998/09/14 18:23:27 stanton Exp $

if {![info exists widgetDemo]} {
error "This script should be run from the \"widget\" demo."
}

set w .clrpick
catch {destroy $w}
toplevel $w
wm title $w "Color Selection Dialog"
wm iconname $w "colors"
positionWindow $w

label $w.msg -font $font -wraplength 4i -justify left -text "Press the buttons below to choose the foreground and background colors for the widgets in this window."
pack $w.msg -side top

frame $w.buttons
pack $w.buttons -side bottom -fill x -pady 2m
button $w.buttons.dismiss -text Dismiss -command "destroy $w"
button $w.buttons.code -text "See Code" -command "showCode $w"
pack $w.buttons.dismiss $w.buttons.code -side left -expand 1

button $w.back -text "Set background color ..." \
-command \
"setColor $w $w.back background {-background -highlightbackground}"
button $w.fore -text "Set foreground color ..." \
-command \
"setColor $w $w.back foreground -foreground"

pack $w.back $w.fore -side top -anchor c -pady 2m

proc setColor {w button name options} {
grab $w
set initialColor [$button cget -$name]
set color [tk_chooseColor -title "Choose a $name color" -parent $w \
-initialcolor $initialColor]
if [string compare $color ""] {
setColor_helper $w $options $color
}
grab release $w
}

proc setColor_helper {w options color} {
foreach option $options {
catch {
$w config $option $color
}
}
foreach child [winfo children $w] {
setColor_helper $child $options $color
}
}