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#
# tk/texttag.rb - methods for treating text tags
#
require 'tk'
require 'tk/text'
require 'tk/tagfont'
class TkTextTag<TkObject
include TkTreatTagFont
TTagID_TBL = TkCore::INTERP.create_table
Tk_TextTag_ID = ['tag'.freeze, '00000'.taint].freeze
TkCore::INTERP.init_ip_env{ TTagID_TBL.clear }
def TkTextTag.id2obj(text, id)
tpath = text.path
return id unless TTagID_TBL[tpath]
TTagID_TBL[tpath][id]? TTagID_TBL[tpath][id]: id
end
def initialize(parent, *args)
unless parent.kind_of?(TkText)
fail ArguemntError, "expect TkText for 1st argument"
end
@parent = @t = parent
@tpath = parent.path
@path = @id = Tk_TextTag_ID.join('')
TTagID_TBL[@id] = self
TTagID_TBL[@tpath] = {} unless TTagID_TBL[@tpath]
TTagID_TBL[@tpath][@id] = self
Tk_TextTag_ID[1].succ!
#tk_call @t.path, "tag", "configure", @id, *hash_kv(keys)
if args != [] then
keys = args.pop
if keys.kind_of? Hash then
add(*args) if args != []
configure(keys)
else
args.push keys
add(*args)
end
end
@t._addtag id, self
end
def id
@id
end
def first
@id + '.first'
end
def last
@id + '.last'
end
def add(*indices)
tk_call_without_enc(@t.path, 'tag', 'add', @id,
*(indices.collect{|idx| _get_eval_enc_str(idx)}))
self
end
def remove(*indices)
tk_call_without_enc(@t.path, 'tag', 'remove', @id,
*(indices.collect{|idx| _get_eval_enc_str(idx)}))
self
end
def ranges
l = tk_split_simplelist(tk_call_without_enc(@t.path, 'tag', 'ranges', @id))
r = []
while key=l.shift
r.push [key, l.shift]
end
r
end
def nextrange(first, last=None)
tk_split_list(tk_call_without_enc(@t.path, 'tag', 'nextrange', @id,
_get_eval_enc_str(first),
_get_eval_enc_str(last)))
end
def prevrange(first, last=None)
tk_split_list(tk_call_without_enc(@t.path, 'tag', 'prevrange', @id,
_get_eval_enc_str(first),
_get_eval_enc_str(last)))
end
def [](key)
cget key
end
def []=(key,val)
configure key, val
val
end
def cget(key)
case key.to_s
when 'text', 'label', 'show', 'data', 'file'
_fromUTF8(tk_call_without_enc(@t.path, 'tag', 'cget', @id, "-#{key}"))
when 'font', 'kanjifont'
#fnt = tk_tcl2ruby(tk_call(@t.path, 'tag', 'cget', @id, "-#{key}"))
fnt = tk_tcl2ruby(_fromUTF8(tk_call_without_enc(@t.path, 'tag', 'cget',
@id, '-font')))
unless fnt.kind_of?(TkFont)
fnt = tagfontobj(@id, fnt)
end
if key.to_s == 'kanjifont' && JAPANIZED_TK && TK_VERSION =~ /^4\.*/
# obsolete; just for compatibility
fnt.kanji_font
else
fnt
end
else
tk_tcl2ruby(_fromUTF8(tk_call_without_enc(@t.path, 'tag', 'cget',
@id, "-#{key}")))
end
end
def configure(key, val=None)
@t.tag_configure @id, key, val
end
# def configure(key, val=None)
# if key.kind_of? Hash
# tk_call @t.path, 'tag', 'configure', @id, *hash_kv(key)
# else
# tk_call @t.path, 'tag', 'configure', @id, "-#{key}", val
# end
# end
# def configure(key, value)
# if value == FALSE
# value = "0"
# elsif value.kind_of? Proc
# value = install_cmd(value)
# end
# tk_call @t.path, 'tag', 'configure', @id, "-#{key}", value
# end
def configinfo(key=nil)
@t.tag_configinfo @id, key
end
def current_configinfo(key=nil)
@t.current_tag_configinfo @id, key
end
def bind(seq, cmd=Proc.new, args=nil)
_bind([@t.path, 'tag', 'bind', @id], seq, cmd, args)
self
end
def bind_append(seq, cmd=Proc.new, args=nil)
_bind_append([@t.path, 'tag', 'bind', @id], seq, cmd, args)
self
end
def bind_remove(seq)
_bind_remove([@t.path, 'tag', 'bind', @id], seq)
self
end
def bindinfo(context=nil)
_bindinfo([@t.path, 'tag', 'bind', @id], context)
end
def raise(above=None)
tk_call_without_enc(@t.path, 'tag', 'raise', @id,
_get_eval_enc_str(above))
self
end
def lower(below=None)
tk_call_without_enc(@t.path, 'tag', 'lower', @id,
_get_eval_enc_str(below))
self
end
def destroy
tk_call_without_enc(@t.path, 'tag', 'delete', @id)
TTagID_TBL[@tpath].delete(@id) if TTagID_TBL[@tpath]
self
end
end
class TkTextNamedTag<TkTextTag
def self.new(parent, name, *args)
if TTagID_TBL[parent.path] && TTagID_TBL[parent.path][name]
tagobj = TTagID_TBL[parent.path][name]
if args != [] then
keys = args.pop
if keys.kind_of? Hash then
tagobj.add(*args) if args != []
tagobj.configure(keys)
else
args.push keys
tagobj.add(*args)
end
end
return tagobj
else
super(parent, name, *args)
end
end
def initialize(parent, name, *args)
unless parent.kind_of?(TkText)
fail ArguemntError, "expect TkText for 1st argument"
end
@parent = @t = parent
@tpath = parent.path
@path = @id = name
TTagID_TBL[@tpath] = {} unless TTagID_TBL[@tpath]
TTagID_TBL[@tpath][@id] = self unless TTagID_TBL[@tpath][@id]
#if mode
# tk_call @t.path, "addtag", @id, *args
#end
if args != [] then
keys = args.pop
if keys.kind_of? Hash then
add(*args) if args != []
configure(keys)
else
args.push keys
add(*args)
end
end
@t._addtag id, self
end
end
class TkTextTagSel<TkTextNamedTag
def self.new(parent, *args)
super(parent, 'sel', *args)
end
end
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