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ruby--ruby/ext/tk/lib/tktext.rb
matz dde62bcd2e 2000-01-17
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2000-01-17 08:37:53 +00:00

936 lines
20 KiB
Ruby

#
# tktext.rb - Tk text classes
# $Date$
# by Yukihiro Matsumoto <matz@caelum.co.jp>
require 'tk.rb'
require 'tkfont'
module TkTreatTextTagFont
def tagfont_configinfo(tag)
if tag.kind_of? TkTextTag
pathname = self.path + ';' + tag.id
else
pathname = self.path + ';' + tag
end
ret = TkFont.used_on(pathname)
if ret == nil
ret = TkFont.init_widget_font(pathname,
self.path, 'tag', 'configure', tag)
end
ret
end
alias tagfontobj tagfont_configinfo
def tagfont_configure(tag, slot)
if tag.kind_of? TkTextTag
pathname = self.path + ';' + tag.id
else
pathname = self.path + ';' + tag
end
if (fnt = slot.delete('font'))
if fnt.kind_of? TkFont
return fnt.call_font_configure(pathname,
self.path,'tag','configure',tag,slot)
else
latintagfont_configure(tag, fnt) if fnt
end
end
if (ltn = slot.delete('latinfont'))
latintagfont_configure(tag, ltn) if ltn
end
if (ltn = slot.delete('asciifont'))
latintagfont_configure(tag, ltn) if ltn
end
if (knj = slot.delete('kanjifont'))
kanjitagfont_configure(tag, knj) if knj
end
tk_call(self.path, 'tag', 'configure', tag, *hash_kv(slot)) if slot != {}
self
end
def latintagfont_configure(tag, ltn, keys=nil)
fobj = tagfontobj(tag)
if ltn.kind_of? TkFont
conf = {}
ltn.latin_configinfo.each{|key,val| conf[key] = val if val != []}
if conf == {}
fobj.latin_replace(ltn)
fobj.latin_configure(keys) if keys
elsif keys
fobj.latin_configure(conf.update(keys))
else
fobj.latin_configure(conf)
end
else
fobj.latin_replace(ltn)
end
end
alias asciitagfont_configure latintagfont_configure
def kanjitagfont_configure(tag, knj, keys=nil)
fobj = tagfontobj(tag)
if knj.kind_of? TkFont
conf = {}
knj.kanji_configinfo.each{|key,val| conf[key] = val if val != []}
if conf == {}
fobj.kanji_replace(knj)
fobj.kanji_configure(keys) if keys
elsif keys
fobj.kanji_configure(conf.update(keys))
else
fobj.kanji_configure(conf)
end
else
fobj.kanji_replace(knj)
end
end
def tagfont_copy(tag, window, wintag=nil)
if wintag
window.tagfontobj(wintag).configinfo.each{|key,value|
tagfontobj(tag).configure(key,value)
}
tagfontobj(tag).replace(window.tagfontobj(wintag).latin_font,
window.tagfontobj(wintag).kanji_font)
else
window.tagfont(wintag).configinfo.each{|key,value|
tagfontobj(tag).configure(key,value)
}
tagfontobj(tag).replace(window.fontobj.latin_font,
window.fontobj.kanji_font)
end
end
def latintagfont_copy(tag, window, wintag=nil)
if wintag
tagfontobj(tag).latin_replace(window.tagfontobj(wintag).latin_font)
else
tagfontobj(tag).latin_replace(window.fontobj.latin_font)
end
end
alias asciitagfont_copy latintagfont_copy
def kanjitagfont_copy(tag, window, wintag=nil)
if wintag
tagfontobj(tag).kanji_replace(window.tagfontobj(wintag).kanji_font)
else
tagfontobj(tag).kanji_replace(window.fontobj.kanji_font)
end
end
end
class TkText<TkTextWin
include TkTreatTextTagFont
include Scrollable
WidgetClassName = 'Text'.freeze
WidgetClassNames[WidgetClassName] = self
def self.to_eval
WidgetClassName
end
def self.new(*args)
obj = super(*args){}
obj.init_instance_variable
obj.instance_eval &block if defined? yield
obj
end
def init_instance_variable
@tags = {}
end
def create_self
tk_call 'text', @path
init_instance_variable
end
def index(index)
tk_send 'index', index
end
def value
tk_send 'get', "1.0", "end - 1 char"
end
def value= (val)
tk_send 'delete', "1.0", 'end'
tk_send 'insert', "1.0", val
end
def _addcmd(cmd)
@cmdtbl.push cmd
end
def _addtag(name, obj)
@tags[name] = obj
end
def tagid2obj(tagid)
if not @tags[tagid]
tagid
else
@tags[tagid]
end
end
def tag_names(index=None)
tk_split_list(tk_send('tag', 'names', index)).collect{|elt|
tagid2obj(elt)
}
end
def mark_names
tk_split_list(tk_send('mark', 'names')).collect{|elt|
tagid2obj(elt)
}
end
def window_names
tk_send('window', 'names').collect{|elt|
tagid2obj(elt)
}
end
def image_names
tk_send('image', 'names').collect{|elt|
tagid2obj(elt)
}
end
def set_insert(index)
tk_send 'mark', 'set', 'insert', index
end
def set_current(index)
tk_send 'mark', 'set', 'current', index
end
def insert(index, chars, *tags)
super index, chars, tags.collect{|x|_get_eval_string(x)}.join(' ')
end
def destroy
@tags = {} unless @tags
@tags.each_value do |t|
t.destroy
end
super
end
def backspace
self.delete 'insert'
end
def compare(idx1, op, idx2)
bool(tk_send('compare', idx1, op, idx2))
end
def debug
bool(tk_send('debug'))
end
def debug=(boolean)
tk_send 'debug', boolean
end
def bbox(index)
inf = tk_send('bbox', index)
(inf == "")? [0,0,0,0]: inf
end
def dlineinfo(index)
inf = tk_send('dlineinfo', index)
(inf == "")? [0,0,0,0,0]: inf
end
def yview(*what)
tk_send 'yview', *what
end
def yview_pickplace(*what)
tk_send 'yview', '-pickplace', *what
end
def xview(*what)
tk_send 'xview', *what
end
def xview_pickplace(*what)
tk_send 'xview', '-pickplace', *what
end
def tag_add(tag, index1, index2=None)
tk_send 'tag', 'add', tag, index1, index2
end
def tag_bind(tag, seq, cmd=Proc.new, args=nil)
_bind(['tag', 'bind', tag], seq, cmd, args)
end
def tag_bind_append(tag, seq, cmd=Proc.new, args=nil)
_bind_append(['tag', 'bind', tag], seq, cmd, args)
end
def tag_bindinfo(tag, context=nil)
_bindinfo(['tag', 'bind', tag], context)
end
def tag_cget(tag, key)
tk_tcl2ruby tk_call @path, 'tag', 'cget', tag, "-#{key}"
end
def tag_configure(tag, key, val=None)
if key.kind_of? Hash
if ( key['font'] || key['kanjifont'] \
|| key['latinfont'] || key['asciifont'] )
tagfont_configure(tag, key.dup)
else
tk_send 'tag', 'configure', tag, *hash_kv(key)
end
else
if key == 'font' || key == 'kanjifont' ||
key == 'latinfont' || key == 'asciifont'
tagfont_configure({key=>val})
else
tk_send 'tag', 'configure', tag, "-#{key}", val
end
end
end
def tag_configinfo(tag, key=nil)
if key
conf = tk_split_list(tk_send('tag','configure',tag,"-#{key}"))
conf[0] = conf[0][1..-1]
conf
else
tk_split_list(tk_send('tag', 'configure', tag)).collect{|conf|
conf[0] = conf[0][1..-1]
conf
}
end
end
def tag_raise(tag, above=None)
tk_send 'tag', 'raise', tag, above
end
def tag_lower(tag, below=None)
tk_send 'tag', 'lower', tag, below
end
def tag_remove(tag, *index)
tk_send 'tag', 'remove', tag, *index
end
def tag_ranges(tag)
l = tk_split_simplelist(tk_send('tag', 'ranges', tag))
r = []
while key=l.shift
r.push [key, l.shift]
end
r
end
def tag_nextrange(tag, first, last=None)
tk_split_simplelist(tk_send('tag', 'nextrange', tag, first, last))
end
def tag_prevrange(tag, first, last=None)
tk_split_simplelist(tk_send('tag', 'prevrange', tag, first, last))
end
def search_with_length(pat,start,stop=None)
pat = pat.char if pat.kind_of? Integer
if stop != None
return ["", 0] if compare(start,'>=',stop)
txt = get(start,stop)
if (pos = txt.index(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index(start + " + #{pos} chars"), pat.split('').length]
else
return [index(start + " + #{pos} chars"), $&.split('').length]
end
else
return ["", 0]
end
else
txt = get(start,'end - 1 char')
if (pos = txt.index(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index(start + " + #{pos} chars"), pat.split('').length]
else
return [index(start + " + #{pos} chars"), $&.split('').length]
end
else
txt = get('1.0','end - 1 char')
if (pos = txt.index(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index("1.0 + #{pos} chars"), pat.split('').length]
else
return [index("1.0 + #{pos} chars"), $&.split('').length]
end
else
return ["", 0]
end
end
end
end
def search(pat,start,stop=None)
search_with_length(pat,start,stop)[0]
end
def rsearch_with_length(pat,start,stop=None)
pat = pat.char if pat.kind_of? Integer
if stop != None
return ["", 0] if compare(start,'<=',stop)
txt = get(stop,start)
if (pos = txt.rindex(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index(stop + " + #{pos} chars"), pat.split('').length]
else
return [index(stop + " + #{pos} chars"), $&.split('').length]
end
else
return ["", 0]
end
else
txt = get('1.0',start)
if (pos = txt.rindex(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index("1.0 + #{pos} chars"), pat.split('').length]
else
return [index("1.0 + #{pos} chars"), $&.split('').length]
end
else
txt = get('1.0','end - 1 char')
if (pos = txt.rindex(pat))
pos = txt[0..(pos-1)].split('').length if pos > 0
if pat.kind_of? String
return [index("1.0 + #{pos} chars"), pat.split('').length]
else
return [index("1.0 + #{pos} chars"), $&.split('').length]
end
else
return ["", 0]
end
end
end
end
def rsearch(pat,start,stop=None)
rsearch_with_length(pat,start,stop)[0]
end
end
class TkTextTag<TkObject
include TkTreatTagFont
Tk_TextTag_ID = ['tag0000']
def initialize(parent, *args)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@parent = @t = parent
@path = @id = Tk_TextTag_ID[0]
Tk_TextTag_ID[0] = Tk_TextTag_ID[0].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
return @id
end
def first
@id + '.first'
end
def last
@id + '.last'
end
def add(*index)
tk_call @t.path, 'tag', 'add', @id, *index
end
def remove(*index)
tk_call @t.path, 'tag', 'remove', @id, *index
end
def ranges
l = tk_split_simplelist(tk_call(@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_simplelist(tk_call(@t.path, 'tag', 'nextrange', @id, first, last))
end
def prevrange(first, last=None)
tk_split_simplelist(tk_call(@t.path, 'tag', 'prevrange', @id, first, last))
end
def [](key)
cget key
end
def []=(key,val)
configure key, val
end
def cget(key)
tk_tcl2ruby tk_call @t.path, 'tag', 'cget', @id, "-#{key}"
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 bind(seq, cmd=Proc.new, args=nil)
_bind([@t.path, 'tag', 'bind', @id], seq, cmd, args)
end
def bind_append(seq, cmd=Proc.new, args=nil)
_bind_append([@t.path, 'tag', 'bind', @id], seq, cmd, args)
end
def bindinfo(context=nil)
_bindinfo([@t.path, 'tag', 'bind', @id], context)
end
def raise(above=None)
tk_call @t.path, 'tag', 'raise', @id, above
end
def lower(below=None)
tk_call @t.path, 'tag', 'lower', @id, below
end
def destroy
tk_call @t.path, 'tag', 'delete', @id
end
end
class TkTextTagSel<TkTextTag
def initialize(parent, keys=nil)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
@path = @id = 'sel'
#tk_call @t.path, "tag", "configure", @id, *hash_kv(keys)
configure(keys) if keys
@t._addtag id, self
end
end
class TkTextMark<TkObject
Tk_TextMark_ID = ['mark0000']
def initialize(parent, index)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
@path = @id = Tk_TextMark_ID[0]
Tk_TextMark_ID[0] = Tk_TextMark_ID[0].succ
tk_call @t.path, 'mark', 'set', @id, index
@t._addtag id, self
end
def id
return @id
end
def set(where)
tk_call @t.path, 'mark', 'set', @id, where
end
def unset
tk_call @t.path, 'mark', 'unset', @id
end
alias destroy unset
def gravity
tk_call @t.path, 'mark', 'gravity', @id
end
def gravity=(direction)
tk_call @t.path, 'mark', 'gravity', @id, direction
end
def next(index)
@t.tagid2obj(tk_call(@t.path, 'mark', 'next', index))
end
def previous(index)
@t.tagid2obj(tk_call(@t.path, 'mark', 'previous', index))
end
end
class TkTextMarkInsert<TkTextMark
def initialize(parent, index=nil)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
@path = @id = 'insert'
tk_call @t.path, 'mark', 'set', @id, index if index
@t._addtag id, self
end
end
class TkTextMarkCurrent<TkTextMark
def initialize(parent,index=nil)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
@path = @id = 'current'
tk_call @t.path, 'mark', 'set', @id, index if index
@t._addtag id, self
end
end
class TkTextMarkAnchor<TkTextMark
def initialize(parent,index=nil)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
@path = @id = 'anchor'
tk_call @t.path, 'mark', 'set', @id, index if index
@t._addtag id, self
end
end
class TkTextWindow<TkObject
def initialize(parent, index, keys)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
if index == 'end'
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', 'end - 1 chars'))
elsif index.kind_of? TkTextMark
if tk_call(@t.path,'index',index.path) == tk_call(@t.path,'index','end')
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', 'end - 1 chars'))
else
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', index.path))
end
else
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', index))
end
@path.gravity = 'left'
@index = @path.path
@id = keys['window']
if keys['create']
@p_create = keys['create']
if @p_create.kind_of? Proc
keys['create'] = install_cmd(proc{@id = @p_create.call; @id.path})
end
end
tk_call @t.path, 'window', 'create', @index, *hash_kv(keys)
end
def [](slot)
cget(slot)
end
def []=(slot, value)
configure(slot, value)
end
def cget(slot)
tk_tcl2ruby tk_call @t.path, 'window', 'cget', @index, "-#{slot}"
end
def configure(slot, value=None)
if slot.kind_of? Hash
@id = slot['window'] if slot['window']
if slot['create']
self.create=value
slot['create']=nil
end
if slot.size > 0
tk_call @t.path, 'window', 'configure', @index, *hash_kv(slot)
end
else
@id = value if slot == 'window'
if slot == 'create'
self.create=value
else
tk_call @t.path, 'window', 'configure', @index, "-#{slot}", value
end
end
end
def window
@id
end
def window=(value)
tk_call @t.path, 'window', 'configure', @index, '-window', value
@id = value
end
def create
@p_create
end
def create=(value)
@p_create = value
if @p_create.kind_of? Proc
value = install_cmd(proc{@id = @p_create.call})
end
tk_call @t.path, 'window', 'configure', @index, '-create', value
end
def configinfo(slot = nil)
if slot
conf = tk_split_list(tk_call @t.path, 'window', 'configure',
@index, "-#{slot}")
conf[0] = conf[0][1..-1]
conf
else
tk_split_list(tk_call @t.path, 'window', 'configure',
@index).collect{|conf|
conf[0] = conf[0][1..-1]
conf
}
end
end
def _dump(type, *index)
str = tk_send('dump', type, *index)
result = []
sel = nil
i = 0
while i < str.size
# retrieve key
idx = str.index(/ /, i)
result.push str[i..(idx-1)]
i = idx + 1
# retrieve value
case result[-1]
when 'text'
if str[i] == ?{
# text formed as {...}
val, i = _retrieve_braced_text(str, i)
result.push val
else
# text which may contain backslahes
val, i = _retrieve_backslashed_text(str, i)
result.push val
end
else
idx = str.index(/ /, i)
val = str[i..(idx-1)]
case result[-1]
when 'mark'
case val
when 'insert'
result.push TkTextMarkInsert.new(self)
when 'current'
result.push TkTextMarkCurrent.new(self)
when 'anchor'
result.push TkTextMarkAnchor.new(self)
else
result.push tk_tcl2rb(val)
end
when 'tagon'
if val == 'sel'
if sel
result.push sel
else
result.push TkTextTagSel.new(self)
end
else
result.push tk_tcl2rb val
end
when 'tagoff'
result.push tk_tcl2rb sel
when 'window'
result.push tk_tcl2rb val
end
i = idx + 1
end
# retrieve index
idx = str.index(/ /, i)
if idx
result.push str[i..(idx-1)]
i = idx + 1
else
result.push str[i..-1]
break
end
end
kvis = []
until result.empty?
kvis.push [result.shift, result.shift, result.shift]
end
kvis # result is [[key1, value1, index1], [key2, value2, index2], ...]
end
private :_dump
def _retrieve_braced_text(str, i)
cnt = 0
idx = i
while idx < str.size
case str[idx]
when ?{
cnt += 1
when ?}
cnt -= 1
if cnt == 0
break
end
end
idx += 1
end
return str[i+1..idx-1], idx + 2
end
private :_retrieve_braced_text
def _retrieve_backslashed_text(str, i)
j = i
idx = nil
loop {
idx = str.index(/ /, j)
if str[idx-1] == ?\\
j += 1
else
break
end
}
val = str[i..(idx-1)]
val.gsub!(/\\( |\{|\})/, '\1')
return val, idx + 1
end
private :_retrieve_backslashed_text
def dump_all(*index)
_dump('-all', *index)
end
def dump_mark(*index)
_dump('-mark', *index)
end
def dump_tag(*index)
_dump('-tag', *index)
end
def dump_text(*index)
_dump('-text', *index)
end
def dump_window(*index)
_dump('-window', *index)
end
end
class TkTextImage<TkObject
def initialize(parent, index, keys)
if not parent.kind_of?(TkText)
fail format("%s need to be TkText", parent.inspect)
end
@t = parent
if index == 'end'
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', 'end - 1 chars'))
elsif index.kind_of? TkTextMark
if tk_call(@t.path,'index',index.path) == tk_call(@t.path,'index','end')
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', 'end - 1 chars'))
else
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', index.path))
end
else
@path = TkTextMark.new(@t, tk_call(@t.path, 'index', index))
end
@path.gravity = 'left'
@index = @path.path
@id = tk_call(@t.path, 'image', 'create', @index, *hash_kv(keys))
end
def [](slot)
cget(slot)
end
def []=(slot, value)
configure(slot, value)
end
def cget(slot)
tk_tcl2ruby tk_call @t.path, 'image', 'cget', @index, "-#{slot}"
end
def configure(slot, value=None)
if slot.kind_of? Hash
tk_call @t.path, 'image', 'configure', @index, *hash_kv(slot)
else
tk_call @t.path, 'image', 'configure', @index, "-#{slot}", value
end
end
# def configure(slot, value)
# tk_call @t.path, 'image', 'configure', @index, "-#{slot}", value
# end
def image
tk_call @t.path, 'image', 'configure', @index, '-image'
end
def image=(value)
tk_call @t.path, 'image', 'configure', @index, '-image', value
end
def configinfo(slot = nil)
if slot
conf = tk_split_list(tk_call @t.path, 'image', 'configure',
@index, "-#{slot}")
conf[0] = conf[0][1..-1]
conf
else
tk_split_list(tk_call @t.path, 'image', 'configure',
@index).collect{|conf|
conf[0] = conf[0][1..-1]
conf
}
end
end
end