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#!/usr/bin/env ruby
##
## command.rb
##
## This demo shows the use of the table widget's -command options
##
## ( based on 'command.tcl' included source archive of tktable extension )
##
require 'tk'
require 'tkextlib/tktable'
# create the table
data = TkVariable.new_hash
rows = 10
cols = 10
# fill table variable
((-(rows))..rows).each{|x|
((-(cols))..cols).each{|y|
data[x,y] = "#{x} x #{y}"
}
}
lbl = TkLabel.new(:text=>"TkTable :command Example")
cur_var = TkVariable.new
current = TkLabel.new(:textvariable=>cur_var, :width=>5)
ent_var = TkVariable.new
entry = TkEntry.new(:textvariable=>ent_var)
table = Tk::TkTable.new(:rows=>rows, :cols=>cols,
:command=>[proc{|mode, cell, val|
if (mode == :w)
data[cell] = val
else
begin
data[cell] # exist
rescue
'' # not exist
end
end
}, '%i %C %s'],
:width=>6, :height=>6,
:titlerows=>1, :titlecols=>1,
:roworigin=>-1, :colorigin=>-1,
:rowstretchmode=>:last, :colstretchmode=>:last,
:rowtagcommand=>proc{|row|
row = Integer(row)
return 'OddRow' if row>0 && row%2 == 1
},
:coltagcommand=>proc{|col|
col = Integer(col)
return 'OddCol' if col>0 && col%2 == 1
},
:selectmode=>:extended, :flashmode=>true,
:rowstretch=>:unset, :colstretch=>:unset,
:browsecommand=>[proc{|w, s|
cur_var.value = s
ent_var.value = w.get(s)
}, '%W %S'],
:validate=>true,
:validatecommand=>proc{|e|
ent_var.value = e.new_value; true
})
=begin
:validatecommand=>[
proc{|s|
ent_var.value = s; true
}, '%S'])
=end
sx = table.xscrollbar(TkScrollbar.new)
sy = table.yscrollbar(TkScrollbar.new)
entry.bind('Return', proc{|w| table.curvalue = w.value}, '%W')
Tk.grid(lbl, '-', '-', :sticky=>:ew)
Tk.grid(current, entry, '-', :sticky=>:ew)
Tk.grid(table, '-', sy, :sticky=>:news)
Tk.grid(sx, '-', :sticky=>:ew)
Tk.root.grid_columnconfig(1, :weight=>1)
Tk.root.grid_rowconfig(2, :weight=>1)
table.tag_configure('OddRow', :bg=>'orange', :fg=>'purple')
table.tag_configure('OddCol', :bg=>'brown', :fg=>'pink')
puts "Table is #{table.path}"
Tk.mainloop
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