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|
#
# tk/textmark.rb - methods for treating text marks
#
require 'tk'
require 'tk/text'
class TkTextMark<TkObject
include Tk::Text::IndexModMethods
TMarkID_TBL = TkCore::INTERP.create_table
(Tk_TextMark_ID = ['mark'.freeze, '00000'.taint]).instance_eval{
@mutex = Mutex.new
def mutex; @mutex; end
freeze
}
TkCore::INTERP.init_ip_env{
TMarkID_TBL.mutex.synchronize{ TMarkID_TBL.clear }
}
def TkTextMark.id2obj(text, id)
tpath = text.path
TMarkID_TBL.mutex.synchronize{
if TMarkID_TBL[tpath]
TMarkID_TBL[tpath][id]? TMarkID_TBL[tpath][id]: id
else
id
end
}
end
def initialize(parent, index)
#unless parent.kind_of?(Tk::Text)
# fail ArgumentError, "expect Tk::Text for 1st argument"
#end
@parent = @t = parent
@tpath = parent.path
Tk_TextMark_ID.mutex.synchronize{
# @path = @id = Tk_TextMark_ID.join('')
@path = @id = Tk_TextMark_ID.join(TkCore::INTERP._ip_id_).freeze
Tk_TextMark_ID[1].succ!
}
TMarkID_TBL.mutex.synchronize{
TMarkID_TBL[@id] = self
TMarkID_TBL[@tpath] = {} unless TMarkID_TBL[@tpath]
TMarkID_TBL[@tpath][@id] = self
}
tk_call_without_enc(@t.path, 'mark', 'set', @id,
_get_eval_enc_str(index))
@t._addtag id, self
end
def id
Tk::Text::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 Tk::Text::IndexModMethods module
def +(mod)
return chars(mod) if mod.kind_of?(Numeric)
mod = mod.to_s
if mod =~ /^\s*[+-]?\d/
Tk::Text::IndexString.new(@id + ' + ' + mod)
else
Tk::Text::IndexString.new(@id + ' ' + mod)
end
end
def -(mod)
return chars(-mod) if mod.kind_of?(Numeric)
mod = mod.to_s
if mod =~ /^\s*[+-]?\d/
Tk::Text::IndexString.new(@id + ' - ' + mod)
elsif mod =~ /^\s*[-]\s+(\d.*)$/
Tk::Text::IndexString.new(@id + ' - -' + $1)
else
Tk::Text::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
TktMark = TkTextMark
class TkTextNamedMark<TkTextMark
def self.new(parent, name, index=nil)
TMarkID_TBL.mutex.synchronize{
if TMarkID_TBL[parent.path] && TMarkID_TBL[parent.path][name]
obj = TMarkID_TBL[parent.path][name]
else
# super(parent, name, *args)
(obj = self.allocate).instance_eval{
@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]
@t._addtag @id, self
}
obj
end
if obj && index
tk_call_without_enc(parent.path, 'mark', 'set', name,
_get_eval_enc_str(index))
end
obj
}
end
def initialize(parent, name, index=nil)
# dummy:: not called by 'new' method
#unless parent.kind_of?(Tk::Text)
# fail ArgumentError, "expect Tk::Text for 1st argument"
#end
@parent = @t = parent
@tpath = parent.path
@path = @id = name
tk_call_without_enc(@t.path, 'mark', 'set', @id,
_get_eval_enc_str(index)) if index
@t._addtag @id, self
end
end
TktNamedMark = TkTextNamedMark
class TkTextMarkInsert<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'insert', *args)
end
end
TktMarkInsert = TkTextMarkInsert
class TkTextMarkCurrent<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'current', *args)
end
end
TktMarkCurrent = TkTextMarkCurrent
class TkTextMarkAnchor<TkTextNamedMark
def self.new(parent,*args)
super(parent, 'anchor', *args)
end
end
TktMarkAnchor = TkTextMarkAnchor
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