* ext/tk/lib/tk.rb: add new methods (TkScrollbar#assign, assign_list)

* ext/tk/sample/tkmultilistframe.rb: use TkScrollbar#assign method


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/tk/lib/tk.rb

@@ -5107,6 +5107,15 @@ class TkScrollbar<TkWindow
   WidgetClassNames[WidgetClassName] = self
 
   def create_self(keys)
+    @assigned = []
+    @scroll_proc = proc{|*args| 
+      if self.orient == 'horizontal'
+	@assigned.each{|w| w.xview(*args)}
+      else # 'vertical'
+	@assigned.each{|w| w.yview(*args)}
+      end
+    }
+
     if keys and keys != None
       tk_call 'scrollbar', @path, *hash_kv(keys)
     else
@@ -5115,6 +5124,32 @@ class TkScrollbar<TkWindow
   end
   private :create_self
 
+  def assign(*wins)
+    begin
+      self.command(@scroll_proc) if self.cget('command').cmd != @scroll_proc
+    rescue Exception
+      self.command(@scroll_proc)
+    end
+    orient = self.orient
+    wins.each{|w|
+      @assigned << w unless @assigned.index(w)
+      if orient == 'horizontal'
+	w.xscrollcommand proc{|first, last| self.set(first, last)}
+      else # 'vertical'
+	w.yscrollcommand proc{|first, last| self.set(first, last)}
+      end
+    }
+    self
+  end
+
+  def assigned_list
+    begin
+      return @assigned.dup if self.cget('command').cmd == @scroll_proc
+    rescue Exception
+    end
+    fail RuntimeError, "not depend on the assigned_list"
+  end
+
   def delta(deltax=None, deltay=None)
     number(tk_send('delta', deltax, deltay))
   end
@@ -5146,6 +5181,24 @@ class TkScrollbar<TkWindow
   end
 end
 
+class TkXScrollbar<TkScrollbar
+  def create_self(keys)
+    keys = {} unless keys
+    keys['orient'] = 'horizontal'
+    super(keys)
+  end
+  private :create_self
+end
+
+class TkYScrollbar<TkScrollbar
+  def create_self(keys)
+    keys = {} unless keys
+    keys['orient'] = 'vertical'
+    super(keys)
+  end
+  private :create_self
+end
+
 class TkTextWin<TkWindow
   def create_self
     fail RuntimeError, "TkTextWin is an abstract class"

ext/tk/sample/tkmultilistframe.rb

@@ -50,14 +50,24 @@ class TkMultiListFrame < TkListbox
     @h_l_thick = 0
 
     # virtical scrollbar
+=begin
     @v_scroll = TkScrollbar.new(@frame, 'highlightthickness'=>@h_l_thick, 
 				'borderwidth'=>@scrbar_border, 
 				'orient'=>'vertical', 'width'=>@scrbar_width)
+=end
+    @v_scroll = TkYScrollbar.new(@frame, 'highlightthickness'=>@h_l_thick, 
+				 'borderwidth'=>@scrbar_border, 
+				 'width'=>@scrbar_width)
 
     # horizontal scrollbar
+=begin
     @h_scroll = TkScrollbar.new(@frame, 'highlightthickness'=>@h_l_thick, 
 				'borderwidth'=>@scrbar_border, 
 				'orient'=>'horizontal', 'width'=>@scrbar_width)
+=end
+    @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, 
@@ -118,18 +128,27 @@ class TkMultiListFrame < TkListbox
       # scrollbar field
       f = TkFrame.new(@f_hscr, 'width'=>width)
       base << f
+=begin
       @hscr_list << TkScrollbar.new(f, 'orient'=>'horizontal', 
 				    'width'=>@scrbar_width, 
 				    'borderwidth'=>@scrbar_border, 
 				    'highlightthickness'=>@h_l_thick
 				    ).pack('fill'=>'x', 'anchor'=>'w')
+=end
+      @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])
 
+=begin
       @lbox_list[idx].xscrollcommand proc{|first, last| 
 	@hscr_list[idx].set first, last
       }
       @hscr_list[idx].command proc{|*args| @lbox_list[idx].xview *args}
+=end
+      @lbox_list[idx].xscrollbar(@hscr_list[idx])
 
       # add new base
       @base_list << base
@@ -163,14 +182,18 @@ class TkMultiListFrame < TkListbox
     @f_hscr.height hscr_height
 
     # set control procedure for virtical scroll
+=begin
     @lbox_list.each{|lbox|
       lbox.yscrollcommand proc{|first, last| 
 	@v_scroll.set first, last
       }
     }
     @v_scroll.command proc{|*args| @lbox_list.each{|lbox| lbox.yview *args} }
+=end
+    @v_scroll.assign(*@lbox_list)
 
     # set control procedure for horizoncal scroll
+=begin
     @c_title.xscrollcommand proc{|first, last| 
       @h_scroll.set first, last
     }
@@ -185,6 +208,8 @@ class TkMultiListFrame < TkListbox
       @c_lbox.xview *args
       @c_hscr.xview *args if @show_each_hscr
     }
+=end
+    @h_scroll.assign(@c_title, @c_lbox, @c_hscr)
 
     # binding for listboxes
     @mode = {}