From d464704f111d211c1f1ff9ef23ef1d755054be00 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 15 Aug 2007 19:08:43 +0000
Subject: add tag v1_8_5_54

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb | 743 ++++++++++++++++++++++++++
 1 file changed, 743 insertions(+)
 create mode 100644 ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb

(limited to 'ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb')

diff --git a/ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb b/ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb
new file mode 100644
index 0000000000..255eb691e5
--- /dev/null
+++ b/ruby_1_8_5/ext/tk/sample/tkmulticolumnlist.rb
@@ -0,0 +1,743 @@
+#
+# tkmulticolumnlist.rb : multiple column list widget on scrollable frame
+#                        by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+require 'tk'
+
+class TkMultiColumnList < TkText
+  include TkComposite
+
+  #   lbox_height : height of listboxes (pixel)
+  #   title_info  : array [ [<title_string>,<init_width>], ... ]
+  #   keys        : hash {<option>=><value>, ... }
+  def initialize_composite(lbox_height, title_info, keys={})
+    # argument check
+    if (! title_info.kind_of? Array) or (title_info.size < 2)
+      raise
+    end
+
+    # mode
+    @keep_minsize = true
+    @show_each_hscr = true
+    @show_win_hscr = true
+
+    # init arrays
+    @base_list  = []
+    @rel_list   = []
+    @title_list = []
+    @title_cmd  = []
+    @lbox_list  = []
+    @hscr_list  = []
+
+    # decide total width
+    @lbox_total = title_info.size
+    @width_total = 0
+    title_info.each{|title, width, cmd| 
+      @width_total += width.to_f
+      @title_cmd << cmd
+    }
+
+    # rel-table of label=>index
+    @name_index = {}
+
+    # size definition
+    @window_width = @width_total
+    @sash = 5
+    @scrbar_width = 15
+    @scrbar_border = 3
+    @lbox_border = 1
+    @title_border = 3
+    @h_l_thick = 0
+
+    # init status
+    @mode = :title
+    @command = nil
+
+    # virtical scrollbar
+    @v_scroll = TkYScrollbar.new(@frame, 'highlightthickness'=>@h_l_thick, 
+                                 'borderwidth'=>@scrbar_border, 
+                                 'width'=>@scrbar_width)
+
+    # horizontal scrollbar
+    @h_scroll = TkXScrollbar.new(@frame, 'highlightthickness'=>@h_l_thick, 
+                                 'borderwidth'=>@scrbar_border, 
+                                 'width'=>@scrbar_width)
+
+    # create base flames
+    @c_title = TkCanvas.new(@frame, 'highlightthickness'=>@h_l_thick, 
+                            'width'=>@window_width)
+    @f_title = TkFrame.new(@c_title, 'width'=>@width_total)
+    @w_title = TkcWindow.new(@c_title, 0, 0, 
+                             'window'=>@f_title, 'anchor'=>'nw')
+
+    @c_lbox  = TkCanvas.new(@frame, 'highlightthickness'=>@h_l_thick, 
+                            'width'=>@window_width)
+    @f_lbox  = TkFrame.new(@c_lbox, 'width'=>@width_total)
+    @w_lbox  = TkcWindow.new(@c_lbox, 0, 0, 'window'=>@f_lbox, 'anchor'=>'nw')
+
+    @c_hscr  = TkCanvas.new(@frame, 'highlightthickness'=>@h_l_thick, 
+                            'width'=>@window_width)
+    @f_hscr  = TkFrame.new(@c_hscr, 'width'=>@width_total)
+    @w_hscr  = TkcWindow.new(@c_hscr, 0, 0, 'window'=>@f_hscr, 'anchor'=>'nw')
+
+    # create each listbox
+    sum = 0.0
+    @rel_list << sum/@width_total
+    title_info.each_with_index{|(label, width), idx|
+      # set relation between label and index
+      if @name_index.include?(label)
+        @name_index[label] << idx
+      else
+        @name_index[label] = [idx]
+      end
+
+      # calculate relative positioning
+      sum += width
+      @rel_list << sum/@width_total
+
+      # title field
+      f = TkFrame.new(@f_title, 'width'=>width)
+      base = [f]
+
+      title = TkLabel.new(f, 'text'=>label, 'borderwidth'=>@title_border, 
+                          'relief'=>'raised', 'highlightthickness'=>@h_l_thick)
+      title_binding(title, idx)
+      title.pack('fill'=>'x')
+
+      @title_list << title
+
+      f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>1, 
+              'relheight'=>1.0, 
+              'relwidth'=>@rel_list[idx+1] - @rel_list[idx])
+
+      # listbox field
+      f = TkFrame.new(@f_lbox, 'width'=>width)
+      base << f
+      @lbox_list << TkText.new(f, 'highlightthickness'=>@h_l_thick, 
+                               'borderwidth'=>@lbox_border, 
+                               'takefocus'=>false, 
+                               'wrap'=>'none') {
+
+        bindtags(bindtags - [TkText])
+
+        @seltag = TkTextTag.new(self, 'background'=>'#b3b3b3', 
+                                'borderwidth'=>1, 'relief'=>'raised')
+        def self.nearest(y)
+          self.index("@1,#{y}").split('.')[0].to_i
+        end
+
+        def self.select_clear(first, last=nil)
+          first = "#{first}.0" if first.kind_of?(Integer)
+          first = self.index(first.to_s + ' linestart')
+          last = first unless last
+          last = "#{last}.0" if first.kind_of?(Integer)
+          last = self.index(last.to_s + ' + 1 lines linestart')
+          @seltag.remove(first, last)
+        end
+
+        def self.select_set(first, last=nil)
+          first = "#{first}.0" if first.kind_of?(Integer)
+          first = self.index(first.to_s + ' linestart')
+          last = first unless last
+          last = "#{last}.0" if first.kind_of?(Integer)
+          last = self.index(last.to_s + ' + 1 lines linestart')
+          @seltag.add(first, last)
+        end
+
+        def self.select_index
+          self.index(@seltag.first).split('.')[0].to_i
+        end
+
+        pack('fill'=>'both', 'expand'=>true)
+      }
+
+      f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>1, 
+              'relwidth'=>@rel_list[idx+1] - @rel_list[idx], 'relheight'=>1.0)
+
+      # scrollbar field
+      f = TkFrame.new(@f_hscr, 'width'=>width)
+      base << f
+      @hscr_list << TkXScrollbar.new(f, 'width'=>@scrbar_width, 
+                                     'borderwidth'=>@scrbar_border, 
+                                     'highlightthickness'=>@h_l_thick
+                                    ).pack('fill'=>'x', 'anchor'=>'w')
+      f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>1, 
+              'relwidth'=>@rel_list[idx+1] - @rel_list[idx])
+
+      @lbox_list[idx].xscrollbar(@hscr_list[idx])
+
+      # add new base
+      @base_list << base
+    }
+
+    # pad
+    @f_title_pad = TkFrame.new(@frame, 'relief'=>'raised', 
+                               'borderwidth'=>@title_border, 
+                               'highlightthickness'=>@h_l_thick)
+
+    @f_scr_pad = TkFrame.new(@frame, 'relief'=>'sunken', 
+                             'borderwidth'=>1, 
+                             'highlightthickness'=>@h_l_thick)
+
+    # height check
+    title_height = 0
+    @title_list.each{|w| 
+      h = w.winfo_reqheight
+      title_height = h if title_height < h
+    }
+
+    hscr_height = 0
+    @hscr_list.each{|w| 
+      h = w.winfo_reqheight
+      hscr_height = h if hscr_height < h
+    }
+
+    @f_title.height title_height
+    @f_lbox.height lbox_height
+    @f_hscr.height hscr_height
+
+    # set control procedure for virtical scroll
+    @v_scroll.assign(*@lbox_list)
+
+    # set control procedure for horizoncal scroll
+    @h_scroll.assign(@c_title, @c_lbox, @c_hscr)
+
+    # binding for listboxes
+    @lbox_list.each_with_index{|l, idx| 
+      l.bind('Button-1', proc{|w, y| 
+               @frame.focus
+               select_line(w, w.nearest(y))
+             }, '%W %y')
+      l.bind('B1-Motion', proc{|w, y| 
+               select_line(w, w.nearest(y))
+             }, '%W %y')
+      l.bind('Double-Button-1', proc{
+               @command.call(get_select) if @command
+             })
+
+      l.bind('Control-Home', proc{|w| select_line(w, 0)}, '%W')
+      l.bind('Control-End', proc{|w| select_line(w, 'end')}, '%W')
+
+      l.bind('Button-2', proc{|x, y| 
+               @lbox_mark_x = x
+               @lbox_list.each{|lbox| lbox.scan_mark(x, y)}
+             }, '%x %y')
+      l.bind('B2-Motion', proc{|x, y| 
+               @lbox_list.each{|lbox| lbox.scan_dragto(@lbox_mark_x, y)}
+               l.scan_dragto(x, y)
+             }, '%x %y')
+    }
+
+    bbox = @w_title.bbox
+    @c_title.height(bbox[3])
+    @c_title.scrollregion(bbox)
+
+    bbox = @w_lbox.bbox
+    @c_lbox.height(bbox[3])
+    @c_lbox.scrollregion(bbox)
+
+    if @show_each_hscr
+      bbox = @w_hscr.bbox
+      @c_hscr.height(bbox[3])
+      @c_hscr.scrollregion(bbox)
+    end
+
+    # binding
+    @frame.takefocus(true)
+    @frame.bind('Key-Up', proc{select_shift(@lbox_list[0], -1)})
+    @frame.bind('Key-Down', proc{select_shift(@lbox_list[0], 1)})
+    @frame.bind('Return', proc{@command.call(get_select) if @command})
+
+    # alignment
+    TkGrid.rowconfigure(@frame, 0, 'weight'=>0)
+    TkGrid.rowconfigure(@frame, 1, 'weight'=>1)
+    TkGrid.rowconfigure(@frame, 2, 'weight'=>0)
+    TkGrid.rowconfigure(@frame, 3, 'weight'=>0)
+    TkGrid.columnconfigure(@frame, 0, 'weight'=>1)
+    TkGrid.columnconfigure(@frame, 1, 'weight'=>0)
+    TkGrid.columnconfigure(@frame, 2, 'weight'=>0)
+    @v_scroll.grid('row'=>1, 'column'=>2, 'sticky'=>'ns')
+    @c_title.grid('row'=>0, 'column'=>0, 'sticky'=>'news')
+    @f_title_pad.grid('row'=>0, 'column'=>2, 'sticky'=>'news')
+    @c_lbox.grid('row'=>1, 'column'=>0, 'sticky'=>'news')
+    @c_hscr.grid('row'=>2, 'column'=>0, 'sticky'=>'ew') if @show_each_hscr
+    @h_scroll.grid('row'=>3, 'column'=>0, 'sticky'=>'ew') if @show_win_hscr
+    @f_scr_pad.grid('row'=>2, 'rowspan'=>2, 'column'=>2, 'sticky'=>'news')
+
+    # binding for 'Configure' event
+    @c_lbox.bind('Configure', 
+                 proc{|height, width| reconstruct(height, width)}, 
+                 '%h %w')
+
+    # set default receiver of method calls
+    @path = @frame.path
+
+    # configure options
+    keys = {} unless keys
+    keys = _symbolkey2str(keys)
+
+    # command
+    cmd = keys.delete('command')
+    command(cmd) if cmd
+
+    # 'scrollbarwidth' option == 'width' option of scrollbars
+    width = keys.delete('scrollbarwidth')
+    scrollbarwidth(width) if width
+
+    # options for listbox titles
+    title_font = keys.delete('titlefont')
+    titlefont(title_font) if title_font
+
+    title_fg = keys.delete('titleforeground')
+    titleforeground(title_fg) if title_fg
+
+    title_bg = keys.delete('titlebackground')
+    titlebackground(title_bg) if title_bg
+
+    # set receivers for configure methods
+    delegate('DEFAULT', *@lbox_list)
+    delegate('activebackground', @v_scroll, @h_scroll, *@hscr_list)
+    delegate('troughcolor', @v_scroll, @h_scroll, *@hscr_list)
+    delegate('repeatdelay', @v_scroll, @h_scroll, *@hscr_list)
+    delegate('repeatinterval', @v_scroll, @h_scroll, *@hscr_list)
+    delegate('borderwidth', @frame)
+    delegate('width', @c_lbox, @c_title, @c_hscr)
+    delegate('relief', @frame)
+
+    # configure
+    configure(keys) if keys.size > 0
+  end
+  private :initialize_composite
+
+  # keep_minsize?
+  def keep_minsize?
+    @keep_minsize
+  end
+  def keep_minsize(bool)
+    @keep_minsize = bool
+  end
+
+  # each hscr
+  def show_each_hscr
+    @show_each_hscr = true
+    @c_hscr.grid('row'=>2, 'column'=>0, 'sticky'=>'ew')
+  end
+  def hide_each_hscr
+    @show_each_hscr = false
+    @c_hscr.ungrid
+  end
+
+  # window hscroll
+  def show_win_hscr
+    @show_win_hscr = true
+    @h_scroll.grid('row'=>3, 'column'=>0, 'sticky'=>'ew')
+  end
+  def hide_win_hscr
+    @show_each_hscr = false
+    @h_scroll.ungrid
+  end
+
+  # set command
+  def command(cmd)
+    @command = cmd
+    self
+  end
+
+  # set scrollbar width
+  def scrollbarwidth(width)
+    @scrbar_width = width
+    @v_scroll['width'] = @scrbar_width
+    @h_scroll['width'] = @scrbar_width
+    @hscr_list.each{|hscr| hscr['width'] = @scrbar_width}
+    self
+  end
+
+  # set scrollbar border
+  def scrollbarborder(width)
+    @scrbar_border = width
+    @v_scroll['border'] = @scrbar_border
+    @h_scroll['border'] = @scrbar_border
+    @hscr_list.each{|hscr| hscr['border'] = @scrbar_border}
+    self
+  end
+
+  # set listbox borders
+  def listboxborder(width)
+    @lbox_border = width
+    @lbox_list.each{|w| w['border'] = @lbox_border}
+    self
+  end
+
+  # set listbox relief
+  def listboxrelief(relief)
+    @lbox_list.each{|w| w['relief'] = relief}
+    self
+  end
+
+  # set title borders
+  def titleborder(width)
+    @title_border = width
+    @f_title_pad['border'] = @title_border
+    @title_list.each{|label| label['border'] = @title_border}
+    self
+  end
+
+  # set title font
+  def titlefont(font)
+    @title_list.each{|label| label['font'] = font}
+    title_height = 0
+    @title_list.each{|w| 
+      h = w.winfo_reqheight
+      title_height = h if title_height < h
+    }
+    @f_title.height title_height
+    bbox = @w_title.bbox
+    @c_title.height(bbox[3])
+    @c_title.scrollregion(bbox)
+    self
+  end
+
+  # set title foreground color
+  def titleforeground(fg)
+    @title_list.each{|label| label['foreground'] = fg}
+    self
+  end
+
+  # set title background color
+  def titlebackground(bg)
+    @f_title_pad['background'] = bg
+    @title_list.each{|label| label['background'] = bg}
+    self
+  end
+
+  # set title cmds
+  def titlecommand(idx, cmd=Proc.new)
+    @title_cmd[idx] = cmd
+  end
+
+  # call title cmds
+  def titleinvoke(idx)
+    @title_cmd[idx].call if @title_cmd[idx]
+  end
+
+  # get label widgets of listbox titles
+  def titlelabels(*indices)
+    @title_list[*indices]
+  end
+
+  # get listbox widgets
+  def columns(*indices)
+    @lbox_list[*indices]
+  end
+
+  def delete(*idx)
+    idx = idx.collect{|i|
+      if i.kind_of?(Integer)
+        "#{i}.0"
+      else
+        i.to_s
+      end
+    }
+    @lbox_list.collect{|lbox| lbox.delete(*idx)}
+  end
+
+  def get(idx_s, idx_e=nil)
+    unless idx_e
+      if idx_s.kind_of?(Integer)
+        idx_s = "#{idx_s}.0"
+        idx_e = "#{idx_s} lineend"
+      else
+        idx_s = idx_s.to_s
+        idx_e = "#{idx_s} lineend"
+      end
+      @lbox_list.collect{|lbox|
+        lbox.get(idx_s, idx_e)
+      }
+    else
+      if idx_s.kind_of?(Integer)
+        idx_s = "#{idx_s}.0"
+      else
+        idx_s = idx_s.to_s
+      end
+      if idx_e.kind_of?(Integer)
+        idx_e = "#{idx_e}.end"
+      else
+        idx_e = "#{idx_e} lineend"
+      end
+      list = @lbox_list.collect{|lbox| lbox.get(idx_s, idx_e).split(/\n/)}
+      result = []
+      list[0].each_with_index{|line, index|
+        result << list.collect{|lines| lines[index]}
+      }
+      result
+    end
+  end
+
+  def get_select
+    get(@lbox_list[0].select_index)
+  end
+
+  def _line_array_to_hash(line)
+    result = {}
+    @name_index.each_pair{|label, indices|
+      if indices.size == 1
+        result[label] = line[indices[0]]
+      else
+        result[label] = indices.collect{|index| line[index]}
+      end
+    }
+    result
+  end
+  private :_line_array_to_hash
+
+  def get_by_hash(*idx)
+    get_result = get(*idx)
+    if idx.size == 1
+      _line_array_to_hash(get_result)
+    else
+      get_result.collect{|line| _line_array_to_hash(line)}
+    end
+  end
+
+  def insert(idx, *lines)
+    lbox_ins = []
+    (0..@lbox_list.size).each{lbox_ins << []}
+
+    if idx.kind_of?(Integer)
+      idx = "#{idx}.0"
+    else
+      idx = idx.to_s
+    end
+
+    if @lbox_list[0].index('1.0 + 1 char') == @lbox_list[0].index('end')
+      cr = ""
+    else
+      cr = "\n"
+    end
+
+    lines.each{|line|
+      if line.kind_of? Hash
+        array = []
+        @name_index.each_pair{|label, indices|
+          if indices.size == 1
+            array[indices[0]] = line[label]
+          else
+            if line[label].kind_of? Array
+              indices.each_with_index{|index, num| 
+                array[index] = line[label][num]
+              }
+            else
+              array[indices[0]] = line[label]
+            end
+          end
+        }
+        line = array
+      end
+
+      @name_index.each_pair{|label, indices|
+        if indices.size == 1
+          lbox_ins[indices[0]] << line[indices[0]]
+        else
+          indices.each{|index| lbox_ins[index] << line[index]}
+        end
+      }
+    }   
+
+    @lbox_list.each_with_index{|lbox, index| 
+      lbox.insert(idx, cr + lbox_ins[index].join("\n")) if lbox_ins[index]
+    }
+  end
+
+  def select_clear(first, last=None)
+    @lbox_list.each{|lbox| lbox.sel_clear(first, last=None)}
+  end
+
+  def select_set(first, last=None)
+    @lbox_list.each{|lbox| lbox.sel_set(first, last=None)}
+  end
+
+  ###########################################
+  private
+
+  def reconstruct(height, width)
+    if @keep_minsize && width <= @width_total
+      @f_title.width(@width_total)
+      @f_lbox.width(@width_total)
+      @f_hscr.width(@width_total) if @show_each_hscr
+      @window_width = @width_total
+    else
+      @f_title.width(width)
+      @f_lbox.width(width)
+      @f_hscr.width(width) if @show_each_hscr
+      @window_width = width
+    end
+
+    @f_lbox.height(height)
+
+    @c_title.scrollregion(@w_title.bbox)
+    @c_lbox.scrollregion(@w_lbox.bbox)
+    @c_hscr.scrollregion(@w_hscr.bbox) if @show_each_hscr
+
+    (0..(@rel_list.size - 2)).each{|idx|
+      title, lbox, hscr = @base_list[idx]
+      title.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx])
+      lbox.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx], 
+                 'relheight'=>1.0)
+      hscr.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx])
+    }
+  end
+
+  def resize(x)
+    idx = @sel_sash
+    return if idx == 0
+
+    # adjustment of relative positioning
+    delta = (x - @x) / @frame_width
+    if delta < @rel_list[idx-1] - @rel_list[idx] + (2*@sash/@frame_width)
+      delta = @rel_list[idx-1] - @rel_list[idx] + (2*@sash/@frame_width)
+    elsif delta > @rel_list[idx+1] - @rel_list[idx] - (2*@sash/@frame_width)
+      delta = @rel_list[idx+1] - @rel_list[idx] - (2*@sash/@frame_width)
+    end
+    @rel_list[idx] += delta
+
+    # adjustment of leftside widget of the sash
+    title, lbox, hscr = @base_list[idx - 1]
+    title.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1])
+    lbox.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1], 'relheight'=>1.0)
+    hscr.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1])
+
+    # adjustment of rightside widget of the sash
+    title, lbox, hscr = @base_list[idx]
+    title.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx], 
+                'relx'=>@rel_list[idx])
+    lbox.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx], 
+               'relx'=>@rel_list[idx], 'relheight'=>1.0)
+    hscr.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx], 
+               'relx'=>@rel_list[idx])
+
+    # update reference position
+    @x = x
+  end
+
+  def motion_cb(w, x, idx)
+    if x <= @sash && idx > 0
+      w.cursor 'sb_h_double_arrow'
+      @mode = :sash
+      @sel_sash = idx
+    elsif x >= w.winfo_width - @sash && idx < @lbox_total - 1
+      w.cursor 'sb_h_double_arrow'
+      @mode = :sash
+      @sel_sash = idx + 1
+    else
+      w.cursor ""
+      @mode = :title
+      @sel_sash = 0
+    end
+  end
+
+  def title_binding(title, index)
+    title.bind('Motion', proc{|w, x, idx| motion_cb(w, x, idx.to_i)}, 
+               "%W %x #{index}")
+
+    title.bind('Enter', proc{|w, x, idx| motion_cb(w, x, idx.to_i)}, 
+               "%W %x #{index}")
+
+    title.bind('Leave', proc{|w| w.cursor ""}, "%W")
+
+    title.bind('Button-1', 
+               proc{|w, x| 
+                 if @mode == :sash
+                   @x = x
+                   @frame_width = TkWinfo.width(@f_title).to_f
+                 else
+                   title.relief 'sunken'
+                 end
+               }, 
+               '%W %X')
+
+    title.bind('ButtonRelease-1', 
+               proc{|w, x, idx| 
+                 i = idx.to_i
+                 if @mode == :title && @title_cmd[i].kind_of?(Proc)
+                   @title_cmd[i].call
+                 end
+                 title.relief 'raised'
+                 motion_cb(w,x,i)
+               }, 
+               "%W %x #{index}")
+
+    title.bind('B1-Motion', proc{|x| resize(x) if @mode == :sash}, "%X")
+  end
+
+  ########################
+  def select_line(w, idx)
+    @lbox_list.each{|l|
+      l.select_clear(1, 'end')
+      l.select_set(idx)
+    }
+    w.select_set(idx)
+  end
+
+  def select_shift(w, dir)
+    head = w.index('@1,1').split('.')[0].to_i
+    tail = w.index("@1,#{w.winfo_height - 1}").split('.')[0].to_i - 1
+    idx = w.select_index + dir
+    last = w.index('end - 1 char').split('.')[0].to_i
+    if idx < 1
+      idx = 1
+    elsif idx > last
+      idx = last
+    end
+    @lbox_list.each{|l|
+      l.select_clear(1, 'end')
+      l.select_set(idx)
+    }
+    if head > idx
+      @lbox_list.each{|l| l.yview('scroll', -1, 'units')}
+    elsif tail < idx
+      @lbox_list.each{|l| l.yview('scroll', 1, 'units')}
+    end
+  end
+  ########################
+end
+
+################################################
+# test
+################################################
+if __FILE__ == $0
+  l = TkMultiColumnList.new(nil, 200, 
+                            [ ['L1', 200, proc{p 'click L1'}], 
+                              ['L2', 100], 
+                              ['L3', 200] ], 
+                            'width'=>350, 
+                            #'titleforeground'=>'yellow', 
+                            'titleforeground'=>'white', 
+                            #'titlebackground'=>'navy',
+                            'titlebackground'=>'blue',
+                            'titlefont'=>'courier'
+                            ).pack('fill'=>'both', 'expand'=>true)
+  l.insert('end', [1,2,3])
+  l.insert('end', [4,5,6])
+  l.insert('end', [4,5,6], [4,5,6])
+  l.insert('end', ['aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', 
+                   'bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',
+                   'cccccccccccccccccccccccccccccccccccccccccccccccccccc'])
+  l.insert('end', [1,2,3])
+  l.insert('end', [4,5,6], [4,5,6])
+  l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
+  l.insert('end', [1,2,3])
+  l.insert('end', [4,5,6], [4,5,6])
+  l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
+  l.insert('end', [1,2,3])
+  l.insert('end', [4,5,6], [4,5,6])
+  l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
+  l.insert('end', [1,2,3])
+  l.insert('end', [4,5,6], [4,5,6])
+  p l.columns(1)
+  p l.columns(1..3)
+  p l.columns(1,2)
+
+  l.command proc{|line_info| p line_info}
+
+  Tk.mainloop
+end
-- 
cgit v1.2.3