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switchable between Tk (standard Tcl/Tk widget set) and Ttk (Tile). Initial default widget set is Tk. Now, toplevel widget classes are removed and defined as aliases. For example, "TkButton" is an alias of the "Tk::Button" class. Those aliases are replaced when switching default widget set. "Tk.default_widget_set=" is the method for switching default widget set. "Tk.default_widget_set = :Ttk" defines Ttk (Tile) widget set as default. It means that "TkButton" denotes "Tk::Tile::Button" class. And then, "TkButton.new" creates a Tk::Tile::Button widget. Of course, you can back to use standard Tk widgets as the default widget set by calling "Tk.default_widget_set = :Tk", whenever you want. Based on thie feature, you can use Ttk widget styling engine on your old Ruby/Tk application without modifying its source, if you don'tuse widget options unsupported on Ttk widgets (At first, call "Tk.default_widget_set = :Ttk", and next load and run your application). This is one step for supporting Tcl/Tk8.5 features. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
39 lines
1.1 KiB
Ruby
39 lines
1.1 KiB
Ruby
#
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# tk/scrollbox.rb - Tk Listbox with Scrollbar
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# as an example of Composite Widget
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# by Yukihiro Matsumoto <matz@netlab.co.jp>
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#
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require 'tk'
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require 'tk/listbox'
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class TkScrollbox<Tk::Listbox
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include TkComposite
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def initialize_composite(keys=nil)
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#list = Tk::Listbox.new(@frame)
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# -> use current TkListbox class
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list = TkListbox.new(@frame)
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#scroll = Tk::Scrollbar.new(@frame)
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# -> use current TkScrollbar class
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scroll = TkScrollbar.new(@frame)
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@path = list.path
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=begin
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list.configure 'yscroll', scroll.path+" set"
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list.pack 'side'=>'left','fill'=>'both','expand'=>'yes'
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scroll.configure 'command', list.path+" yview"
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scroll.pack 'side'=>'right','fill'=>'y'
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=end
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list.yscrollbar(scroll)
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list.pack('side'=>'left','fill'=>'both','expand'=>'yes')
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scroll.pack('side'=>'right','fill'=>'y')
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delegate('DEFAULT', list)
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delegate('foreground', list)
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delegate('background', list, scroll)
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delegate('borderwidth', @frame)
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delegate('relief', @frame)
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configure keys if keys
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end
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private :initialize_composite
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end
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