mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
100 lines
2.9 KiB
Ruby
100 lines
2.9 KiB
Ruby
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##########################################################################
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# TkTree widget class
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#
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# see <http://wiki.tcl.tk/10615>
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#
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# Note: optional argument '-font' of the Tcl library is changed to
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# 'itemfont' on this Ruby library, because of avoiding font
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# operation trouble in 'initialize' method ( see the following
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# test script ).
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#
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##########################################################################
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require 'tk'
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class TkTree < TkCanvas
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TCL_SCRIPT_PATH = File.join(File.dirname(__FILE__), 'tktree.tcl')
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def create_self(keys)
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args = [@path]
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if keys.kind_of?(Hash)
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font = keys.delete('itemfont')
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keys['font'] = font if font
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args.concat(hash_kv(keys))
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end
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begin
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tk_call('::tktree::treecreate', *args)
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rescue NameError
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Tk.load_tclscript(TkTree::TCL_SCRIPT_PATH)
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tk_call('::tktree::treecreate', *args)
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end
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end
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def newitem(itempath, keys = nil)
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if keys.kind_of?(Hash)
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keys = _symbolkey2str(keys)
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font = keys.delete('itemfont')
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keys['font'] = font if font
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tk_call('::tktree::newitem', @path, itempath, *hash_kv(keys))
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else
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tk_call('::tktree::newitem', @path, itempath)
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end
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end
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def delitem(itempath)
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tk_call('::tktree::delitem', @path, itempath)
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end
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def labelat(xpos, ypos)
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tk_call('::tktree::delitem', @path, xpos, ypos)
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end
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def getselection
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tk_call('::tktree::getselection', @path)
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end
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def setselection(itempath)
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tk_call('::tktree::getselection', @path, itempath)
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end
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end
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##########################################################################
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# test script
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##########################################################################
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if __FILE__ == $0
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TkLabel.new(:text=><<EOL, :relief=>:ridge, :justify=>:left).pack
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This is a sample to use a Tcl library script on Ruby/Tk.
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This sample loads tktree.tcl (see <http://wiki.tcl.tk/10615>)
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and calls functions of the Tcl script.
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EOL
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items = %w(/group1/item1 /group1/item2 /group1/subgroup/item1 /group2/item1 /item1)
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tr1 = TkTree.new.pack(:expand=>true, :fill=>:both)
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tr1.focus
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items.each{|item|
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tr1.newitem(item,
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:command=>proc{Tk.messageBox(:message=>"#{item} executed")})
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}
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f = TkFrame.new.pack(:expand=>true, :fill=>:both)
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tr2 = TkTree.new(f, :bg=>'black', :itemfont=>{:family=>'Times', :size=>14},
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:textcolor=>'red', :bd=>4, :relief=>:ridge,
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:selectbackground=>'darkBlue', :selectforeground=>'yellow',
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:selectborderwidth=>3, :linecolor=>'yellow') {
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yscrollbar(TkScrollbar.new(f, :width=>10).pack(:side=>:right, :fill=>:y))
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xscrollbar(TkScrollbar.new(f, :width=>10).pack(:side=>:bottom, :fill=>:x))
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pack(:expand=>true, :fill=>:both)
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}
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items.each{|item|
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tr2.newitem(item, :textcolor=>'green', :image=>'',
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:itemfont=>{:family=>'Times', :size=>10},
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:command=>proc{Tk.messageBox(:message=>"#{item} executed")})
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}
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Tk.mainloop
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end
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