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Diffstat (limited to 'ext/tk/sample/demos-en/states.rb')
-rw-r--r-- | ext/tk/sample/demos-en/states.rb | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/ext/tk/sample/demos-en/states.rb b/ext/tk/sample/demos-en/states.rb new file mode 100644 index 0000000000..d38c1245af --- /dev/null +++ b/ext/tk/sample/demos-en/states.rb @@ -0,0 +1,78 @@ +# states.rb +# +# This demonstration script creates a listbox widget that displays +# the names of the 50 states in the United States of America. +# +# listbox widget demo 'states' (called by 'widget') +# + +# toplevel widget +if defined?($states_demo) && $states_demo + $states_demo.destroy + $states_demo = nil +end + +# demo toplevel widget +$states_demo = TkToplevel.new {|w| + title("Listbox Demonstration (states)") + iconname("states") + positionWindow(w) +} + +# label +msg = TkLabel.new($states_demo) { + font $font + wraplength '4i' + justify 'left' + text "A listbox containing the 50 states is displayed below, along with a scrollbar. You can scan the list either using the scrollbar or by scanning. To scan, press button 2 in the widget and drag up or down." +} +msg.pack('side'=>'top') + +# frame +TkFrame.new($states_demo) {|frame| + TkButton.new(frame) { + text 'Dismiss' + command proc{ + tmppath = $states_demo + $states_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'Show Code' + command proc{showCode 'states'} + }.pack('side'=>'left', 'expand'=>'yes') + +}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +# frame +states_lbox = nil +TkFrame.new($states_demo, 'borderwidth'=>'.5c') {|w| + s = TkScrollbar.new(w) + states_lbox = TkListbox.new(w) { + setgrid 1 + height 12 + yscrollcommand proc{|first,last| s.set first,last} + } + s.command(proc{|*args| states_lbox.yview(*args)}) + s.pack('side'=>'right', 'fill'=>'y') + states_lbox.pack('side'=>'left', 'expand'=>1, 'fill'=>'both') +}.pack('side'=>'top', 'expand'=>'yes', 'fill'=>'y') + +ins_data = [ + 'Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California', + 'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', + 'Hawaii', 'Idaho', 'Illinois', + 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana', 'Maine', 'Maryland', + 'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri', + 'Montana', 'Nebraska', 'Nevada', 'New_Hampshire', 'New_Jersey', 'New_Mexico', + 'New_York', 'North_Carolina', 'North_Dakota', + 'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode_Island', + 'South_Carolina', 'South_Dakota', + 'Tennessee', 'Texas', 'Utah', 'Vermont', 'Virginia', 'Washington', + 'West_Virginia', 'Wisconsin', 'Wyoming' +] + +states_lbox.insert(0, *ins_data) + |