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#
# tk/textmark.rb - methods for treating text marks
#
require 'tk'
require 'tk/text'
class TkTextMark<TkObject
include TkText::IndexModMethods
TMarkID_TBL = TkCore::INTERP.create_table
Tk_TextMark_ID = ['mark'.freeze, '00000'.taint].freeze
TkCore::INTERP.init_ip_env{ TMarkID_TBL.clear }
def TkTextMark.id2obj(text, id)
tpath = text.path
return id unless TMarkID_TBL[tpath]
TMarkID_TBL[tpath][id]? TMarkID_TBL[tpath][id]: id
end
def initialize(parent, index)
#unless parent.kind_of?(TkText)
# fail ArgumentError, "expect TkText for 1st argument"
#end
@parent = @t = parent
@tpath = parent.path
# @path = @id = Tk_TextMark_ID.join('')
@path = @id = Tk_TextMark_ID.join(TkCore::INTERP._ip_id_).freeze
TMarkID_TBL[@id] = self
TMarkID_TBL[@tpath] = {} unless TMarkID_TBL[@tpath]
TMarkID_TBL[@tpath][@id] = self
Tk_TextMark_ID[1].succ!
tk_call_without_enc(@t.path, 'mark', 'set', @id,
_get_eval_enc_str(index))
@t._addtag id, self
end
def id
TkText::IndexString.new(@id)
end
def exist?
#if ( tk_split_simplelist(_fromUTF8(tk_call_without_enc(@t.path, 'mark', 'names'))).find{|id| id == @id } )
if ( tk_split_simplelist(tk_call_without_enc(@t.path, 'mark', 'names'), false, true).find{|id| id == @id } )
true
else
false
end
end
=begin
# move to TkText::IndexModMethods module
def +(mod)
return chars(mod) if mod.kind_of?(Numeric)
mod = mod.to_s
if mod =~ /^\s*[+-]?\d/
TkText::IndexString.new(@id + ' + ' + mod)
else
TkText::IndexString.new(@id + ' ' + mod)
end
end
def -(mod)
return chars(-mod) if mod.kind_of?(Numeric)
mod = mod.to_s
if mod =~ /^\s*[+-]?\d/
TkText::IndexString.new(@id + ' - ' + mod)
elsif mod =~ /^\s*[-]\s+(\d.*)$/
TkText::IndexString.new(@id + ' - -' + $1)
else
TkText::IndexString.new(@id + ' ' + mod)
end
end
=end
def pos
@t.index(@id)
end
def pos=(where)
set(where)
end
def set(where)
tk_call_without_enc(@t.path, 'mark', 'set', @id,
_get_eval_enc_str(where))
self
end
def unset
tk_call_without_enc(@t.path, 'mark', 'unset', @id)
self
end
alias destroy unset
def gravity
tk_call_without_enc(@t.path, 'mark', 'gravity', @id)
end
def gravity=(direction)
tk_call_without_enc(@t.path, 'mark', 'gravity', @id, direction)
#self
direction
end
def next(index = nil)
if index
@t.tagid2obj(_fromUTF8(tk_call_without_enc(@t.path, 'mark', 'next', _get_eval_enc_str(index))))
else
@t.tagid2obj(_fromUTF8(tk_call_without_enc(@t.path, 'mark', 'next', @id)))
end
end
def previous(index = nil)
if index
@t.tagid2obj(_fromUTF8(tk_call_without_enc(@t.path, 'mark', 'previous', _get_eval_enc_str(index))))
else
@t.tagid2obj(_fromUTF8(tk_call_without_enc(@t.path, 'mark', 'previous', @id)))
end
end
end
class TkTextNamedMark<TkTextMark
def self.new(parent, name, *args)
if TMarkID_TBL[parent.path] && TMarkID_TBL[parent.path][name]
return TMarkID_TBL[parent.path][name]
else
super(parent, name, *args)
end
end
def initialize(parent, name, index=nil)
#unless parent.kind_of?(TkText)
# fail ArgumentError, "expect TkText for 1st argument"
#end
@parent = @t = parent
@tpath = parent.path
@path = @id = name
TMarkID_TBL[@id] = self
TMarkID_TBL[@tpath] = {} unless TMarkID_TBL[@tpath]
TMarkID_TBL[@tpath][@id] = self unless TMarkID_TBL[@tpath][@id]
tk_call_without_enc(@t.path, 'mark', 'set', @id,
_get_eval_enc_str(index)) if index
@t._addtag id, self
end
end
class TkTextMarkInsert<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'insert', *args)
end
end
class TkTextMarkCurrent<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'current', *args)
end
end
class TkTextMarkAnchor<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'anchor', *args)
end
end
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