# File tk/lib/tkextlib/tcllib/tkpiechart.rb, line 170
def initialize(pie, *args)
unless pie.kind_of?(Pie) && pie != :no_create
fail ArgumentError, "expects TkPiechart::Pie for 1st argument"
end
if pie == :no_create
@pie, @tag_key = args
else
text = args[0] || None
@pie = pie
@tag_key = tk_call_without_enc('pie::newSlice', @pie.tag_key, text)
end
@parent = @c = @pie.canvas
@path = @parent.path
@pie._entry_slice(self)
@id = "slices(#{@tag_key})"
@tag = TkcNamedTag.new(@pie.canvas, @id)
CItemID_TBL.mutex.synchronize{
CItemID_TBL[@path] = {} unless CItemID_TBL[@path]
CItemID_TBL[@path][@id] = self
}
end
# File tk/lib/tkextlib/tcllib/tkpiechart.rb, line 206
def delete
tk_call_without_enc('pie::deleteSlice', @pie.tag_key, @tag_key)
CItemID_TBL.mutex.synchronize{
CItemID_TBL[@path].delete(@id) if CItemID_TBL[@path]
}
@pie._delete_slice(self)
self
end
# File tk/lib/tkextlib/tcllib/tkpiechart.rb, line 221
def label(text)
tk_call_without_enc('pie::labelSlice', @pie.tag_key, @tag_key, text)
self
end
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