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