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+#!/usr/bin/env ruby
+##
+## spreadsheet.rb
+##
+## This demos shows how you can simulate a 3D table
+## and has other basic features to begin a basic spreadsheet
+##
+## ( based on 'spreadsheet.tcl' included source archive of tktable extension )
+##
+require 'tk'
+require 'tkextlib/tktable'
+
+rows = 10
+cols = 10
+cur_var = TkVariable.new
+table_list = Hash.new{|hash, key| hash[key] = TkVariable.new_hash}
+page = TkVariable.new('AA')
+color = Hash.new('pink')
+color['AA'] = 'orange'
+color['BB'] = 'blue'
+color['CC'] = 'green'
+
+def colorize(num)
+ num = Integer(num)
+ return 'colored' if (num > 0 && num % 2 == 1)
+end
+
+def fill_table(tbl_list, page, r=10, c=10)
+ ary = tbl_list[page]
+
+ (0...r).each{|i|
+ (0...c).each{|j|
+ if i!=0 && j!=0
+ ary[i,j] = "#{page} #{i},#{j}"
+ elsif i!=0
+ ary[i,j] = i.to_s
+ else
+ ary[i,j] = (64+j).chr
+ end
+ }
+ }
+end
+
+def changepage(tbl_list, tbl, ent, col, var, elem, op)
+ if elem != ''
+ page = var[elem]
+ else
+ page = var.value
+ end
+ if tbl[:variable] != tbl_list[page].id
+ tbl.selection_clear_all
+ tbl.variable(tbl_list[page])
+ ent.textvariable(tbl_list[page].ref('active'))
+ tbl.activate('origin')
+ tbl.tag_configure('colored', :bg=>col[page])
+ tbl.see('active')
+ end
+end
+
+lbl = TkLabel.new(:text=>"TkTable v1 Spreadsheet Example")
+
+current = TkLabel.new(:textvariable=>cur_var, :width=>5)
+entry = TkEntry.new(:textvariable=>table_list[page.value].ref('active'))
+lpage = TkLabel.new(:text=>'PAGE:', :width=>6, :anchor=>:e)
+optmenu = TkOptionMenubutton.new(page, *(%w(AA BB CC DD)))
+
+fill_table(table_list, page.value)
+fill_table(table_list, 'BB', Integer(rows/2), Integer(cols/2))
+
+table = Tk::TkTable.new(:rows=>rows, :cols=>cols, :width=>5, :height=>5,
+ :variable=>table_list[page.value],
+ :titlerows=>1, :titlecols=>1,
+ :coltagcommand=>proc{|n| colorize(n)},
+ :flashmode=>true, :selectmode=>:extended,
+ :colstretch=>:unset, :rowstretch=>:unset,
+ :browsecommand=>proc{|e| cur_var.value = e.new_index})
+
+page.trace(:w, proc{|var, elem, op|
+ changepage(table_list, table, entry, color, var, elem, op)
+ })
+
+table.tag_configure('colored', :bg=>color[page.value])
+table.tag_configure('title', :fg=>'red', :relief=>:groove)
+table.tag_configure('blue', :bg=>'blue')
+table.tag_configure('green', :bg=>'green')
+
+table.tag_cell('green', [6,3], [5,7], [4,9])
+table.tag_cell('blue', [8,8])
+table.tag_row('blue', 7)
+table.tag_col('blue', 6, 8)
+table.set_width([0, 3], [2, 7])
+
+sx = table.xscrollbar(TkScrollbar.new)
+sy = table.yscrollbar(TkScrollbar.new)
+
+btn = TkButton.new(:text=>'Exit', :command=>proc{exit})
+
+Tk.grid(lbl, '-', '-', '-', '-', :sticky=>:ew)
+Tk.grid(current, entry, lpage, optmenu, '-', :sticky=>:ew)
+Tk.grid(table, '-', '-', '-', sy, :sticky=>:ns)
+Tk.grid(sx, '-', '-', '-', :sticky=>:ew)
+Tk.grid(btn, '-', '-', '-', '-', :sticky=>:ew)
+
+Tk.root.grid_columnconfig(1, :weight=>1)
+Tk.root.grid_rowconfig(2, :weight=>1)
+
+table.grid_configure(:sticky=>:news)
+
+entry.bind('Return', proc{
+ r = table.row_index(:active)
+ c = table.col_index(:active)
+ rmax = table[:rows]
+ cmax = table[:cols]
+
+ c += 1
+ if c == cmax
+ c = table[:titlecols]
+ r += 1
+ if r == rmax
+ r = table[:titlerows]
+ end
+ end
+ table.activate([r, c])
+ table.see('active')
+ })
+
+menu = TkMenu.new
+m_file = TkMenu.new(menu)
+Tk.root.menu(menu)
+menu.add(:cascade, :label=>'File', :underline=>0, :menu=>m_file)
+m_file.add(:command, :label=>'Fill Array',
+ :command=>proc{ fill_table(table_list, page.value) })
+m_file.add(:command, :label=>'Quit', :command=>proc{exit})
+
+puts "Table is #{table.path} with array #{(table['variable'])}"
+
+Tk.mainloop