#
# tk/canvas.rb - Tk canvas classes
# $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $
# by Yukihiro Matsumoto <matz@caelum.co.jp>
#
require 'tk'
require 'tk/canvastag'
require 'tk/itemconfig'
require 'tk/scrollable'
module TkCanvasItemConfig
include TkItemConfigMethod
def __item_strval_optkeys(id)
# maybe need to override
super(id) + [
'fill', 'activefill', 'disabledfill',
'outline', 'activeoutline', 'disabledoutline'
]
end
private :__item_strval_optkeys
def __item_methodcall_optkeys(id)
{'coords'=>'coords'}
end
private :__item_methodcall_optkeys
def __item_val2ruby_optkeys(id) # { key=>proc, ... }
super(id).update('window'=>proc{|i, v| window(v)})
end
private :__item_val2ruby_optkeys
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
private :__item_pathname
end
class TkCanvas<TkWindow
include TkCanvasItemConfig
include Tk::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_without_enc('canvas', @path, *hash_kv(keys, true))
# else
# tk_call_without_enc('canvas', @path)
# end
#end
#private :create_self
def __numval_optkeys
super() + ['closeenough']
end
private :__numval_optkeys
def __boolval_optkeys
super() + ['confine']
end
private :__boolval_optkeys
def tagid(tag)
if tag.kind_of?(TkcItem) || tag.kind_of?(TkcTag)
tag.id
else
tag # maybe an Array of configure paramters
end
end
private :tagid
# create a canvas item without creating a TkcItem object
def create(type, *args)
type.create(self, *args)
end
def addtag(tag, mode, *args)
mode = mode.to_s
if args[0] && mode =~ /^(above|below|with(tag)?)$/
args[0] = tagid(args[0])
end
tk_send_without_enc('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_without_enc('bbox', tagid(tagOrId),
*tags.collect{|t| tagid(t)}))
end
#def itembind(tag, context, cmd=Proc.new, *args)
# _bind([path, "bind", tagid(tag)], context, cmd, *args)
# self
#end
def itembind(tag, context, *args)
# if args[0].kind_of?(Proc) || args[0].kind_of?(Method)
if TkComm._callback_entry?(args[0]) || !block_given?
cmd = args.shift
else
cmd = Proc.new
end
_bind([path, "bind", tagid(tag)], context, cmd, *args)
self
end
#def itembind_append(tag, context, cmd=Proc.new, *args)
# _bind_append([path, "bind", tagid(tag)], context, cmd, *args)
# self
#end
def itembind_append(tag, context, *args)
# if args[0].kind_of?(Proc) || args[0].kind_of?(Method)
if TkComm._callback_entry?(args[0]) || !block_given?
cmd = args.shift
else
cmd = Proc.new
end
_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(screen_x, *args)
#tk_tcl2ruby(tk_send_without_enc('canvasx', screen_x, *args))
number(tk_send_without_enc('canvasx', screen_x, *args))
end
def canvasy(screen_y, *args)
#tk_tcl2ruby(tk_send_without_enc('canvasy', screen_y, *args))
number(tk_send_without_enc('canvasy', screen_y, *args))
end
def coords(tag, *args)
if args == []
tk_split_list(tk_send_without_enc('coords', tagid(tag)))
else
tk_send_without_enc('coords', tagid(tag), *(args.flatten))
self
end
end
def dchars(tag, first, last=None)
tk_send_without_enc('dchars', tagid(tag),
_get_eval_enc_str(first), _get_eval_enc_str(last))
self
end
def delete(*args)
if TkcItem::CItemID_TBL[self.path]
args.each{|tag|
find('withtag', tag).each{|item|
if item.kind_of?(TkcItem)
TkcItem::CItemID_TBL[self.path].delete(item.id)
end
}
}
end
tk_send_without_enc('delete', *args.collect{|t| tagid(t)})
self
end
alias remove delete
def dtag(tag, tag_to_del=None)
tk_send_without_enc('dtag', tagid(tag), tagid(tag_to_del))
self
end
alias deltag dtag
def find(mode, *args)
list(tk_send_without_enc('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_without_enc('focus', tagid(tagOrId))
self
else
ret = tk_send_without_enc('focus')
if ret == ""
nil
else
TkcItem.id2obj(self, ret)
end
end
end
def gettags(tagOrId)
list(tk_send_without_enc('gettags', tagid(tagOrId))).collect{|tag|
TkcTag.id2obj(self, tag)
}
end
def icursor(tagOrId, index)
tk_send_without_enc('icursor', tagid(tagOrId), index)
self
end
def index(tagOrId, idx)
number(tk_send_without_enc('index', tagid(tagOrId), idx))
end
def insert(tagOrId, index, string)
tk_send_without_enc('insert', tagid(tagOrId), index,
_get_eval_enc_str(string))
self
end
=begin
def itemcget(tagOrId, option)
case option.to_s
when 'dash', 'activedash', 'disableddash'
conf = tk_send_without_enc('itemcget', tagid(tagOrId), "-#{option}")
if conf =~ /^[0-9]/
list(conf)
else
conf
end
when 'text', 'label', 'show', 'data', 'file', 'maskdata', 'maskfile'
_fromUTF8(tk_send_without_enc('itemcget', tagid(tagOrId), "-#{option}"))
when 'font', 'kanjifont'
#fnt = tk_tcl2ruby(tk_send('itemcget', tagid(tagOrId), "-#{option}"))
fnt = tk_tcl2ruby(_fromUTF8(tk_send_with_enc('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(_fromUTF8(tk_send_without_enc('itemcget', tagid(tagOrId),
"-#{option}")))
end
end
def itemconfigure(tagOrId, key, value=None)
if key.kind_of? Hash
key = _symbolkey2str(key)
coords = key.delete('coords')
self.coords(tagOrId, coords) if coords
if ( key['font'] || key['kanjifont'] \
|| key['latinfont'] || key['asciifont'] )
tagfont_configure(tagid(tagOrId), key.dup)
else
_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId),
*hash_kv(key, true)))
end
else
if ( key == 'coords' || key == :coords )
self.coords(tagOrId, value)
elsif ( 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
_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId),
"-#{key}", _get_eval_enc_str(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 TkComm::GET_CONFIGINFO_AS_ARRAY
if key
case key.to_s
when 'coords'
return ['coords', '', '', '', self.coords(tagOrId)]
when 'dash', 'activedash', 'disableddash'
conf = tk_split_simplelist(tk_send_without_enc('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(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId), "-#{key}")))
when 'font', 'kanjifont'
conf = tk_split_simplelist(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId),"-#{key}")))
conf[4] = tagfont_configinfo(tagid(tagOrId), conf[4])
else
conf = tk_split_list(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId), "-#{key}")))
end
conf[0] = conf[0][1..-1]
conf
else
ret = tk_split_simplelist(_fromUTF8(tk_send_without_enc('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[1] = conf[1][1..-1] if conf.size == 2 # alias info
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)
end
ret << ['coords', '', '', '', self.coords(tagOrId)]
end
else # ! TkComm::GET_CONFIGINFO_AS_ARRAY
if key
case key.to_s
when 'coords'
{'coords' => ['', '', '', self.coords(tagOrId)]}
when 'dash', 'activedash', 'disableddash'
conf = tk_split_simplelist(tk_send_without_enc('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(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId), "-#{key}")))
when 'font', 'kanjifont'
conf = tk_split_simplelist(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId),"-#{key}")))
conf[4] = tagfont_configinfo(tagid(tagOrId), conf[4])
else
conf = tk_split_list(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId), "-#{key}")))
end
key = conf.shift[1..-1]
{ key => conf }
else
ret = {}
tk_split_simplelist(_fromUTF8(tk_send_without_enc('itemconfigure', tagid(tagOrId)))).each{|conflist|
conf = tk_split_simplelist(conflist)
key = conf.shift[1..-1]
case key
when 'text', 'label', 'show', 'data', 'file', 'maskdata', 'maskfile'
when 'dash', 'activedash', 'disableddash'
if conf[2] && conf[2] =~ /^[0-9]/
conf[2] = list(conf[2])
end
if conf[3] && conf[3] =~ /^[0-9]/
conf[3] = list(conf[3])
end
else
if conf[2]
if conf[2].index('{')
conf[2] = tk_split_list(conf[2])
else
conf[2] = tk_tcl2ruby(conf[2])
end
end
if conf[3]
if conf[3].index('{')
conf[3] = tk_split_list(conf[3])
else
conf[3] = tk_tcl2ruby(conf[3])
end
end
end
if conf.size == 1
ret[key] = conf[0][1..-1] # alias info
else
ret[key] = conf
end
}
fontconf = ret['font']
if fontconf
ret.delete('font')
ret.delete('kanjifont')
fontconf[3] = tagfont_configinfo(tagid(tagOrId), fontconf[3])
ret['font'] = fontconf
end
ret['coords'] = ['', '', '', self.coords(tagOrId)]
ret
end
end
end
def current_itemconfiginfo(tagOrId, key=nil)
if TkComm::GET_CONFIGINFO_AS_ARRAY
if key
conf = itemconfiginfo(tagOrId, key)
{conf[0] => conf[4]}
else
ret = {}
itemconfiginfo(tagOrId).each{|conf|
ret[conf[0]] = conf[4] if conf.size > 2
}
ret
end
else # ! TkComm::GET_CONFIGINFO_AS_ARRAY
ret = {}
itemconfiginfo(tagOrId, key).each{|k, conf|
ret[k] = conf[-1] if conf.kind_of?(Array)
}
ret
end
end
=end
def lower(tag, below=nil)
if below
tk_send_without_enc('lower', tagid(tag), tagid(below))
else
tk_send_without_enc('lower', tagid(tag))
end
self
end
def move(tag, x, y)
tk_send_without_enc('move', tagid(tag), x, y)
self
end
def postscript(keys)
tk_send("postscript", *hash_kv(keys))
end
def raise(tag, above=nil)
if above
tk_send_without_enc('raise', tagid(tag), tagid(above))
else
tk_send_without_enc('raise', tagid(tag))
end
self
end
def scale(tag, x, y, xs, ys)
tk_send_without_enc('scale', tagid(tag), x, y, xs, ys)
self
end
def scan_mark(x, y)
tk_send_without_enc('scan', 'mark', x, y)
self
end
def scan_dragto(x, y, gain=None)
tk_send_without_enc('scan', 'dragto', x, y, gain)
self
end
def select(mode, *args)
r = tk_send_without_enc('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
class TkcItem<TkObject
extend Tk
include TkcTagAccess
extend TkItemFontOptkeys
extend TkItemConfigOptkeys
CItemTypeName = nil
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 self._parse_create_args(args)
fontkeys = {}
methodkeys = {}
if args[-1].kind_of? Hash
keys = _symbolkey2str(args.pop)
if args.size == 0
args = keys.delete('coords')
unless args.kind_of?(Array)
fail "coords parameter must be given by an Array"
end
end
#['font', 'kanjifont', 'latinfont', 'asciifont'].each{|key|
# fontkeys[key] = keys.delete(key) if keys.key?(key)
#}
__item_font_optkeys(nil).each{|key|
fkey = key.to_s
fontkeys[fkey] = keys.delete(fkey) if keys.key?(fkey)
fkey = "kanji#{key}"
fontkeys[fkey] = keys.delete(fkey) if keys.key?(fkey)
fkey = "latin#{key}"
fontkeys[fkey] = keys.delete(fkey) if keys.key?(fkey)
fkey = "ascii#{key}"
fontkeys[fkey] = keys.delete(fkey) if keys.key?(fkey)
}
__item_methodcall_optkeys(nil).each{|key|
key = key.to_s
methodkeys[key] = keys.delete(key) if keys.key?(key)
}
__item_ruby2val_optkeys(nil).each{|key, method|
key = key.to_s
keys[key] = method.call(keys[key]) if keys.has_key?(key)
}
#args = args.flatten.concat(hash_kv(keys))
args = args.flatten.concat(itemconfig_hash_kv(nil, keys))
else
args = args.flatten
end
[args, fontkeys]
end
private_class_method :_parse_create_args
def self.create(canvas, *args)
unless self::CItemTypeName
fail RuntimeError, "#{self} is an abstract class"
end
args, fontkeys = _parse_create_args(args)
idnum = tk_call_without_enc(canvas.path, 'create',
self::CItemTypeName, *args)
canvas.itemconfigure(idnum, fontkeys) unless fontkeys.empty?
idnum.to_i # 'canvas item id' is an integer number
end
########################################
def initialize(parent, *args)
#unless parent.kind_of?(TkCanvas)
# fail ArgumentError, "expect TkCanvas for 1st argument"
#end
@parent = @c = parent
@path = parent.path
@id = create_self(*args) # an integer number as 'canvas item id'
CItemID_TBL[@path] = {} unless CItemID_TBL[@path]
CItemID_TBL[@path][@id] = self
end
def create_self(*args)
self.class.create(@c, *args) # return an integer number as 'canvas item id'
end
private :create_self
def id
@id
end
def exist?
if @c.find_withtag(@id)
true
else
false
end
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
CItemTypeName = 'arc'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcBitmap<TkcItem
CItemTypeName = 'bitmap'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcImage<TkcItem
CItemTypeName = 'image'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcLine<TkcItem
CItemTypeName = 'line'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcOval<TkcItem
CItemTypeName = 'oval'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcPolygon<TkcItem
CItemTypeName = 'polygon'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcRectangle<TkcItem
CItemTypeName = 'rectangle'.freeze
CItemTypeToClass[CItemTypeName] = self
end
class TkcText<TkcItem
CItemTypeName = 'text'.freeze
CItemTypeToClass[CItemTypeName] = self
def self.create(canvas, *args)
if args[-1].kind_of?(Hash)
keys = _symbolkey2str(args.pop)
txt = keys['text']
keys['text'] = _get_eval_enc_str(txt) if txt
args.push(keys)
end
super(canvas, *args)
end
end
class TkcWindow<TkcItem
CItemTypeName = 'window'.freeze
CItemTypeToClass[CItemTypeName] = self
def self.create(canvas, *args)
if args[-1].kind_of?(Hash)
keys = _symbolkey2str(args.pop)
win = keys['window']
# keys['window'] = win.epath if win.kind_of?(TkWindow)
keys['window'] = _epath(win) if win
args.push(keys)
end
super(canvas, *args)
end
end