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ruby--ruby/ext/tk/lib/tkcanvas.rb
nagai 865ff7fb4f * tcltklib.c (lib_mainloop_core): fixed signal-trap bug
* multi-tk.rb, tk.rb, tkafter.rb, tkcanvas.rb, tkfont.rb, tktext.rb,
  tkvirtevent.rb : Ruby/Tk works at $SAFE == 4


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2003-09-07 07:10:44 +00:00

992 lines
21 KiB
Ruby

#
# tkcanvas.rb - Tk canvas classes
# $Date$
# by Yukihiro Matsumoto <matz@caelum.co.jp>
# $Date$
# by Hidetoshi Nagai <nagai@ai.kyutech.ac.jp>
require "tk"
require 'tkfont'
module TkTreatCItemFont
include TkTreatItemFont
ItemCMD = ['itemconfigure'.freeze, TkComm::None].freeze
def __conf_cmd(idx)
ItemCMD[idx]
end
def __item_pathname(tagOrId)
if tagOrId.kind_of?(TkcItem) || tagOrId.kind_of?(TkcTag)
self.path + ';' + tagOrId.id.to_s
else
self.path + ';' + tagOrId.to_s
end
end
end
class TkCanvas<TkWindow
include TkTreatCItemFont
include Scrollable
TkCommandNames = ['canvas'.freeze].freeze
WidgetClassName = 'Canvas'.freeze
WidgetClassNames[WidgetClassName] = self
def __destroy_hook__
TkcItem::CItemID_TBL.delete(@path)
end
def create_self(keys)
if keys and keys != None
tk_call 'canvas', @path, *hash_kv(keys)
else
tk_call 'canvas', @path
end
end
def tagid(tag)
if tag.kind_of?(TkcItem) || tag.kind_of?(TkcTag)
tag.id
else
tag
end
end
private :tagid
def addtag(tag, mode, *args)
tk_send 'addtag', tagid(tag), mode, *args
self
end
def addtag_above(tagOrId, target)
addtag(tagOrId, 'above', tagid(target))
end
def addtag_all(tagOrId)
addtag(tagOrId, 'all')
end
def addtag_below(tagOrId, target)
addtag(tagOrId, 'below', tagid(target))
end
def addtag_closest(tagOrId, x, y, halo=None, start=None)
addtag(tagOrId, 'closest', x, y, halo, start)
end
def addtag_enclosed(tagOrId, x1, y1, x2, y2)
addtag(tagOrId, 'enclosed', x1, y1, x2, y2)
end
def addtag_overlapping(tagOrId, x1, y1, x2, y2)
addtag(tagOrId, 'overlapping', x1, y1, x2, y2)
end
def addtag_withtag(tagOrId, tag)
addtag(tagOrId, 'withtag', tagid(tag))
end
def bbox(tagOrId, *tags)
list(tk_send('bbox', tagid(tagOrId), *tags.collect{|t| tagid(t)}))
end
def itembind(tag, context, cmd=Proc.new, args=nil)
_bind([path, "bind", tagid(tag)], context, cmd, args)
self
end
def itembind_append(tag, context, cmd=Proc.new, args=nil)
_bind_append([path, "bind", tagid(tag)], context, cmd, args)
self
end
def itembind_remove(tag, context)
_bind_remove([path, "bind", tagid(tag)], context)
self
end
def itembindinfo(tag, context=nil)
_bindinfo([path, "bind", tagid(tag)], context)
end
def canvasx(x, *args)
tk_tcl2ruby(tk_send('canvasx', x, *args))
end
def canvasy(y, *args)
tk_tcl2ruby(tk_send('canvasy', y, *args))
end
def coords(tag, *args)
if args == []
tk_split_list(tk_send('coords', tagid(tag)))
else
tk_send('coords', tagid(tag), *(args.flatten))
end
end
def dchars(tag, first, last=None)
tk_send 'dchars', tagid(tag), first, last
self
end
def delete(*args)
if TkcItem::CItemID_TBL[self.path]
find('withtag', *args).each{|item|
TkcItem::CItemID_TBL[self.path].delete(item.id)
}
end
tk_send 'delete', *args.collect{|t| tagid(t)}
self
end
alias remove delete
def dtag(tag, tag_to_del=None)
tk_send 'dtag', tagid(tag), tag_to_del
self
end
def find(mode, *args)
list(tk_send('find', mode, *args)).collect!{|id|
TkcItem.id2obj(self, id)
}
end
def find_above(target)
find('above', tagid(target))
end
def find_all
find('all')
end
def find_below(target)
find('below', tagid(target))
end
def find_closest(x, y, halo=None, start=None)
find('closest', x, y, halo, start)
end
def find_enclosed(x1, y1, x2, y2)
find('enclosed', x1, y1, x2, y2)
end
def find_overlapping(x1, y1, x2, y2)
find('overlapping', x1, y1, x2, y2)
end
def find_withtag(tag)
find('withtag', tag)
end
def itemfocus(tagOrId=nil)
if tagOrId
tk_send 'focus', tagid(tagOrId)
self
else
ret = tk_send('focus')
if ret == ""
nil
else
TkcItem.id2obj(self, ret)
end
end
end
def gettags(tagOrId)
list(tk_send('gettags', tagid(tagOrId))).collect{|tag|
TkcTag.id2obj(self, tag)
}
end
def icursor(tagOrId, index)
tk_send 'icursor', tagid(tagOrId), index
self
end
def index(tagOrId, index)
number(tk_send('index', tagid(tagOrId), index))
end
def insert(tagOrId, index, string)
tk_send 'insert', tagid(tagOrId), index, string
self
end
def itemcget(tagOrId, option)
case option.to_s
when 'dash', 'activedash', 'disableddash'
conf = tk_send('itemcget', tagid(tagOrId), "-#{option}")
if conf =~ /^[0-9]/
list(conf)
else
conf
end
when 'text', 'label', 'show', 'data', 'file', 'maskdata', 'maskfile'
tk_send 'itemcget', tagid(tagOrId), "-#{option}"
when 'font', 'kanjifont'
#fnt = tk_tcl2ruby(tk_send('itemcget', tagid(tagOrId), "-#{option}"))
fnt = tk_tcl2ruby(tk_send('itemcget', tagid(tagOrId), '-font'))
unless fnt.kind_of?(TkFont)
fnt = tagfontobj(tagid(tagOrId), fnt)
end
if option.to_s == 'kanjifont' && JAPANIZED_TK && TK_VERSION =~ /^4\.*/
# obsolete; just for compatibility
fnt.kanji_font
else
fnt
end
else
tk_tcl2ruby tk_send('itemcget', tagid(tagOrId), "-#{option}")
end
end
def itemconfigure(tagOrId, key, value=None)
if key.kind_of? Hash
key = _symbolkey2str(key)
if ( key['font'] || key['kanjifont'] \
|| key['latinfont'] || key['asciifont'] )
tagfont_configure(tagid(tagOrId), key.dup)
else
tk_send 'itemconfigure', tagid(tagOrId), *hash_kv(key)
end
else
if ( key == 'font' || key == :font ||
key == 'kanjifont' || key == :kanjifont ||
key == 'latinfont' || key == :latinfont ||
key == 'asciifont' || key == :asciifont )
if value == None
tagfontobj(tagid(tagOrId))
else
tagfont_configure(tagid(tagOrId), {key=>value})
end
else
tk_send 'itemconfigure', tagid(tagOrId), "-#{key}", value
end
end
self
end
# def itemconfigure(tagOrId, key, value=None)
# if key.kind_of? Hash
# tk_send 'itemconfigure', tagid(tagOrId), *hash_kv(key)
# else
# tk_send 'itemconfigure', tagid(tagOrId), "-#{key}", value
# end
# end
# def itemconfigure(tagOrId, keys)
# tk_send 'itemconfigure', tagid(tagOrId), *hash_kv(keys)
# end
def itemconfiginfo(tagOrId, key=nil)
if key
case key.to_s
when 'dash', 'activedash', 'disableddash'
conf = tk_split_simplelist(tk_send('itemconfigure',
tagid(tagOrId), "-#{key}"))
if conf[3] && conf[3] =~ /^[0-9]/
conf[3] = list(conf[3])
end
if conf[4] && conf[4] =~ /^[0-9]/
conf[4] = list(conf[4])
end
when 'text', 'label', 'show', 'data', 'file', 'maskdata', 'maskfile'
conf = tk_split_simplelist(tk_send('itemconfigure',
tagid(tagOrId), "-#{key}"))
when 'font', 'kanjifont'
conf = tk_split_simplelist(tk_send('itemconfigure',
tagid(tagOrId),"-#{key}") )
conf[4] = tagfont_configinfo(tagid(tagOrId), conf[4])
else
conf = tk_split_list(tk_send('itemconfigure',
tagid(tagOrId), "-#{key}"))
end
conf[0] = conf[0][1..-1]
conf
else
ret = tk_split_simplelist(tk_send('itemconfigure',
tagid(tagOrId))).collect{|conflist|
conf = tk_split_simplelist(conflist)
conf[0] = conf[0][1..-1]
case conf[0]
when 'text', 'label', 'show', 'data', 'file', 'maskdata', 'maskfile'
when 'dash', 'activedash', 'disableddash'
if conf[3] && conf[3] =~ /^[0-9]/
conf[3] = list(conf[3])
end
if conf[4] && conf[4] =~ /^[0-9]/
conf[4] = list(conf[4])
end
else
if conf[3]
if conf[3].index('{')
conf[3] = tk_split_list(conf[3])
else
conf[3] = tk_tcl2ruby(conf[3])
end
end
if conf[4]
if conf[4].index('{')
conf[4] = tk_split_list(conf[4])
else
conf[4] = tk_tcl2ruby(conf[4])
end
end
end
conf
}
fontconf = ret.assoc('font')
if fontconf
ret.delete_if{|item| item[0] == 'font' || item[0] == 'kanjifont'}
fontconf[4] = tagfont_configinfo(tagid(tagOrId), fontconf[4])
ret.push(fontconf)
else
ret
end
end
end
def lower(tag, below=None)
tk_send 'lower', tagid(tag), tagid(below)
self
end
def move(tag, x, y)
tk_send 'move', tagid(tag), x, y
self
end
def postscript(keys)
tk_send "postscript", *hash_kv(keys)
end
def raise(tag, above=None)
tk_send 'raise', tagid(tag), tagid(above)
self
end
def scale(tag, x, y, xs, ys)
tk_send 'scale', tagid(tag), x, y, xs, ys
self
end
def scan_mark(x, y)
tk_send 'scan', 'mark', x, y
self
end
def scan_dragto(x, y)
tk_send 'scan', 'dragto', x, y
self
end
def select(mode, *args)
r = tk_send('select', mode, *args)
(mode == 'item')? TkcItem.id2obj(self, r): self
end
def select_adjust(tagOrId, index)
select('adjust', tagid(tagOrId), index)
end
def select_clear
select('clear')
end
def select_from(tagOrId, index)
select('from', tagid(tagOrId), index)
end
def select_item
select('item')
end
def select_to(tagOrId, index)
select('to', tagid(tagOrId), index)
end
def itemtype(tag)
TkcItem.type2class(tk_send('type', tagid(tag)))
end
end
module TkcTagAccess
include TkComm
include TkTreatTagFont
def addtag(tag)
@c.addtag(tag, 'with', @id)
self
end
def bbox
@c.bbox(@id)
end
def bind(seq, cmd=Proc.new, args=nil)
@c.itembind @id, seq, cmd, args
self
end
def bind_append(seq, cmd=Proc.new, args=nil)
@c.itembind_append @id, seq, cmd, args
self
end
def bind_remove(seq)
@c.itembind_remove @id, seq
self
end
def bindinfo(seq=nil)
@c.itembindinfo @id, seq
end
def cget(option)
@c.itemcget @id, option
end
def configure(key, value=None)
@c.itemconfigure @id, key, value
self
end
# def configure(keys)
# @c.itemconfigure @id, keys
# end
def configinfo(key=nil)
@c.itemconfiginfo @id, key
end
def coords(*args)
@c.coords @id, *args
end
def dchars(first, last=None)
@c.dchars @id, first, last
self
end
def dtag(tag_to_del=None)
@c.dtag @id, tag_to_del
self
end
def find
@c.find 'withtag', @id
end
alias list find
def focus
@c.itemfocus @id
end
def gettags
@c.gettags @id
end
def icursor(index)
@c.icursor @id, index
self
end
def index(index)
@c.index @id, index
end
def insert(beforethis, string)
@c.insert @id, beforethis, string
self
end
def lower(belowthis=None)
@c.lower @id, belowthis
self
end
def move(xamount, yamount)
@c.move @id, xamount, yamount
self
end
def raise(abovethis=None)
@c.raise @id, abovethis
self
end
def scale(xorigin, yorigin, xscale, yscale)
@c.scale @id, xorigin, yorigin, xscale, yscale
self
end
def select_adjust(index)
@c.select('adjust', @id, index)
self
end
def select_from(index)
@c.select('from', @id, index)
self
end
def select_to(index)
@c.select('to', @id, index)
self
end
def itemtype
@c.itemtype @id
end
# Following operators support logical expressions of canvas tags
# (for Tk8.3+).
# If tag1.path is 't1' and tag2.path is 't2', then
# ltag = tag1 & tag2; ltag.path => "(t1)&&(t2)"
# ltag = tag1 | tag2; ltag.path => "(t1)||(t2)"
# ltag = tag1 ^ tag2; ltag.path => "(t1)^(t2)"
# ltag = - tag1; ltag.path => "!(t1)"
def & (tag)
if tag.kind_of? TkObject
TkcTagString.new(@c, '(' + @id + ')&&(' + tag.path + ')')
else
TkcTagString.new(@c, '(' + @id + ')&&(' + tag.to_s + ')')
end
end
def | (tag)
if tag.kind_of? TkObject
TkcTagString.new(@c, '(' + @id + ')||(' + tag.path + ')')
else
TkcTagString.new(@c, '(' + @id + ')||(' + tag.to_s + ')')
end
end
def ^ (tag)
if tag.kind_of? TkObject
TkcTagString.new(@c, '(' + @id + ')^(' + tag.path + ')')
else
TkcTagString.new(@c, '(' + @id + ')^(' + tag.to_s + ')')
end
end
def -@
TkcTagString.new(@c, '!(' + @id + ')')
end
end
class TkcTag<TkObject
include TkcTagAccess
CTagID_TBL = TkCore::INTERP.create_table
Tk_CanvasTag_ID = ['ctag'.freeze, '00000'.taint].freeze
TkCore::INTERP.init_ip_env{ CTagID_TBL.clear }
def TkcTag.id2obj(canvas, id)
cpath = canvas.path
return id unless CTagID_TBL[cpath]
CTagID_TBL[cpath][id]? CTagID_TBL[cpath][id]: id
end
def initialize(parent, mode=nil, *args)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@c = parent
@cpath = parent.path
@path = @id = Tk_CanvasTag_ID.join
CTagID_TBL[@cpath] = {} unless CTagID_TBL[@cpath]
CTagID_TBL[@cpath][@id] = self
Tk_CanvasTag_ID[1].succ!
if mode
tk_call @c.path, "addtag", @id, mode, *args
end
end
def id
@id
end
def delete
@c.delete @id
CTagID_TBL[@cpath].delete(@id) if CTagID_TBL[@cpath]
self
end
alias remove delete
alias destroy delete
def set_to_above(target)
@c.addtag_above(@id, target)
self
end
alias above set_to_above
def set_to_all
@c.addtag_all(@id)
self
end
alias all set_to_all
def set_to_below(target)
@c.addtag_below(@id, target)
self
end
alias below set_to_below
def set_to_closest(x, y, halo=None, start=None)
@c.addtag_closest(@id, x, y, halo, start)
self
end
alias closest set_to_closest
def set_to_enclosed(x1, y1, x2, y2)
@c.addtag_enclosed(@id, x1, y1, x2, y2)
self
end
alias enclosed set_to_enclosed
def set_to_overlapping(x1, y1, x2, y2)
@c.addtag_overlapping(@id, x1, y1, x2, y2)
self
end
alias overlapping set_to_overlapping
def set_to_withtag(target)
@c.addtag_withtag(@id, target)
self
end
alias withtag set_to_withtag
end
class TkcTagString<TkcTag
def self.new(parent, name, *args)
if CTagID_TBL[parent.path] && CTagID_TBL[parent.path][name]
return CTagID_TBL[parent.path][name]
else
super(parent, name, *args)
end
end
def initialize(parent, name, mode=nil, *args)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@c = parent
@cpath = parent.path
@path = @id = name
CTagID_TBL[@cpath] = {} unless CTagID_TBL[@cpath]
CTagID_TBL[@cpath][@id] = self
if mode
tk_call @c.path, "addtag", @id, mode, *args
end
end
end
TkcNamedTag = TkcTagString
class TkcTagAll<TkcTag
def initialize(parent)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@c = parent
@cpath = parent.path
@path = @id = 'all'
CTagID_TBL[@cpath] = {} unless CTagID_TBL[@cpath]
CTagID_TBL[@cpath][@id] = self
end
end
class TkcTagCurrent<TkcTag
def initialize(parent)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@c = parent
@cpath = parent.path
@path = @id = 'current'
CTagID_TBL[@cpath] = {} unless CTagID_TBL[@cpath]
CTagID_TBL[@cpath][@id] = self
end
end
class TkcGroup<TkcTag
Tk_cGroup_ID = ['tkcg'.freeze, '00000'.taint].freeze
def create_self(parent, *args)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@c = parent
@cpath = parent.path
@path = @id = Tk_cGroup_ID.join
CTagID_TBL[@cpath] = {} unless CTagID_TBL[@cpath]
CTagID_TBL[@cpath][@id] = self
Tk_cGroup_ID[1].succ!
add(*args) if args != []
end
def include(*tags)
for i in tags
i.addtag @id
end
self
end
def exclude(*tags)
for i in tags
i.delete @id
end
self
end
end
class TkcItem<TkObject
include TkcTagAccess
CItemTypeToClass = {}
CItemID_TBL = TkCore::INTERP.create_table
TkCore::INTERP.init_ip_env{ CItemID_TBL.clear }
def TkcItem.type2class(type)
CItemTypeToClass[type]
end
def TkcItem.id2obj(canvas, id)
cpath = canvas.path
return id unless CItemID_TBL[cpath]
CItemID_TBL[cpath][id]? CItemID_TBL[cpath][id]: id
end
def initialize(parent, *args)
if not parent.kind_of?(TkCanvas)
fail format("%s need to be TkCanvas", parent.inspect)
end
@parent = @c = parent
@path = parent.path
fontkeys = {}
if args.size == 1 && args[0].kind_of?(Hash)
args[0] = _symbolkey2str(args[0])
coords = args[0].delete('coords')
if not coords.kind_of?(Array)
fail "coords parameter must be given by an Array"
end
args[0,0] = coords.flatten
end
if args[-1].kind_of? Hash
keys = _symbolkey2str(args.pop)
['font', 'kanjifont', 'latinfont', 'asciifont'].each{|key|
fontkeys[key] = keys.delete(key) if keys.key?(key)
}
args += hash_kv(keys)
end
@id = create_self(*args).to_i ;# 'canvas item id' is integer number
CItemID_TBL[@path] = {} unless CItemID_TBL[@path]
CItemID_TBL[@path][@id] = self
configure(fontkeys) unless fontkeys.empty?
######## old version
# if args[-1].kind_of? Hash
# keys = args.pop
# end
# @id = create_self(*args).to_i ;# 'canvas item id' is integer number
# CItemID_TBL[@path] = {} unless CItemID_TBL[@path]
# CItemID_TBL[@path][@id] = self
# if keys
# # tk_call @path, 'itemconfigure', @id, *hash_kv(keys)
# configure(keys) if keys
# end
########
end
def create_self(*args); end
private :create_self
def id
@id
end
def delete
@c.delete @id
CItemID_TBL[@path].delete(@id) if CItemID_TBL[@path]
self
end
alias remove delete
alias destroy delete
end
class TkcArc<TkcItem
CItemTypeToClass['arc'] = self
def create_self(*args)
tk_call(@path, 'create', 'arc', *args)
end
end
class TkcBitmap<TkcItem
CItemTypeToClass['bitmap'] = self
def create_self(*args)
tk_call(@path, 'create', 'bitmap', *args)
end
end
class TkcImage<TkcItem
CItemTypeToClass['image'] = self
def create_self(*args)
tk_call(@path, 'create', 'image', *args)
end
end
class TkcLine<TkcItem
CItemTypeToClass['line'] = self
def create_self(*args)
tk_call(@path, 'create', 'line', *args)
end
end
class TkcOval<TkcItem
CItemTypeToClass['oval'] = self
def create_self(*args)
tk_call(@path, 'create', 'oval', *args)
end
end
class TkcPolygon<TkcItem
CItemTypeToClass['polygon'] = self
def create_self(*args)
tk_call(@path, 'create', 'polygon', *args)
end
end
class TkcRectangle<TkcItem
CItemTypeToClass['rectangle'] = self
def create_self(*args)
tk_call(@path, 'create', 'rectangle', *args)
end
end
class TkcText<TkcItem
CItemTypeToClass['text'] = self
def create_self(*args)
tk_call(@path, 'create', 'text', *args)
end
end
class TkcWindow<TkcItem
CItemTypeToClass['window'] = self
def create_self(*args)
tk_call(@path, 'create', 'window', *args)
end
end
class TkImage<TkObject
include Tk
TkCommandNames = ['image'.freeze].freeze
Tk_IMGTBL = TkCore::INTERP.create_table
Tk_Image_ID = ['i'.freeze, '00000'.taint].freeze
TkCore::INTERP.init_ip_env{ Tk_IMGTBL.clear }
def initialize(keys=nil)
@path = Tk_Image_ID.join
Tk_Image_ID[1].succ!
tk_call 'image', 'create', @type, @path, *hash_kv(keys)
Tk_IMGTBL[@path] = self
end
def delete
Tk_IMGTBL.delete(@id) if @id
tk_call('image', 'delete', @path)
self
end
def height
number(tk_call('image', 'height', @path))
end
def inuse
bool(tk_call('image', 'inuse', @path))
end
def itemtype
tk_call('image', 'type', @path)
end
def width
number(tk_call('image', 'width', @path))
end
def TkImage.names
Tk.tk_call('image', 'names').split.collect!{|id|
(Tk_IMGTBL[id])? Tk_IMGTBL[id] : id
}
end
def TkImage.types
Tk.tk_call('image', 'types').split
end
end
class TkBitmapImage<TkImage
def initialize(*args)
@type = 'bitmap'
super
end
end
class TkPhotoImage<TkImage
def initialize(*args)
@type = 'photo'
super
end
def blank
tk_send 'blank'
self
end
def cget(option)
case option.to_s
when 'data', 'file'
tk_send 'cget', option
else
tk_tcl2ruby tk_send('cget', option)
end
end
def copy(source, *opts)
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send 'copy', source, *args
self
end
def data(keys=nil)
tk_send('data', *hash_kv(keys))
end
def get(x, y)
tk_send('get', x, y).split.collect{|n| n.to_i}
end
def put(data, *to)
if to == []
tk_send 'put', data
else
tk_send 'put', data, '-to', *to
end
self
end
def read(file, *opts)
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send 'read', file, *args
self
end
def redither
tk_send 'redither'
self
end
def get_transparency(x, y)
bool(tk_send('transparency', 'get', x, y))
end
def set_transparency(x, y, st)
tk_send('transparency', 'set', x, y, st)
self
end
def write(file, *opts)
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send 'write', file, *args
self
end
end