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# clrpick.rb
#
# This demonstration script prompts the user to select a color.
#
# widget demo prompts the user to select a color (called by 'widget')
#
# Note: don't support ttk_wrapper. work with standard widgets only.
#
# toplevel widget
if defined?($clrpick_demo) && $clrpick_demo
$clrpick_demo.destroy
$clrpick_demo = nil
end
# demo toplevel widget
$clrpick_demo = TkToplevel.new {|w|
title("Color Selection Dialogs")
iconname("colors")
positionWindow(w)
}
base_frame = TkFrame.new($clrpick_demo).pack(:fill=>:both, :expand=>true)
# label
#TkLabel.new($clrpick_demo,'font'=>$font,'wraplength'=>'4i','justify'=>'left',
Tk::Label.new($clrpick_demo,'font'=>$font,'wraplength'=>'4i','justify'=>'left',
'text'=>"Press the buttons below to choose the foreground and background colors for the widgets in this window.").pack('side'=>'top')
# frame
#TkFrame.new($clrpick_demo) {|frame|
Tk::Frame.new($clrpick_demo) {|frame|
# TkButton.new(frame) {
Tk::Button.new(frame) {
text 'Dismiss'
command proc{
tmppath = $clrpick_demo
$clrpick_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
# TkButton.new(frame) {
Tk::Button.new(frame) {
text 'Show Code'
command proc{showCode 'clrpick'}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# button
# TkButton.new($clrpick_demo, 'text'=>'Set background color ...') {|b|
Tk::Button.new($clrpick_demo, 'text'=>'Set background color ...') {|b|
command(proc{setColor $clrpick_demo, b, 'background',
['background', 'highlightbackground']})
pack('side'=>'top', 'anchor'=>'c', 'pady'=>'2m')
}
# TkButton.new($clrpick_demo, 'text'=>'Set foreground color ...') {|b|
Tk::Button.new($clrpick_demo, 'text'=>'Set foreground color ...') {|b|
command(proc{setColor $clrpick_demo, b, 'foreground', ['foreground']})
pack('side'=>'top', 'anchor'=>'c', 'pady'=>'2m')
}
def setColor(w,button,name,options)
w.grab
initialColor = button[name]
color = Tk.chooseColor('title'=>"Choose a #{name} color", 'parent'=>w,
'initialcolor'=>initialColor)
if color != ""
setColor_helper(w,options,color)
end
w.grab('release')
end
def setColor_helper(w, options, color)
options.each{|opt|
begin
w[opt] = color
rescue
end
}
TkWinfo.children(w).each{|child|
setColor_helper child, options, color
}
end
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