Class: TkcItem

Inherits:
TkObject show all
Extended by:
Tk, TkItemConfigOptkeys, TkItemFontOptkeys
Includes:
TkcTagAccess
Defined in:
lib/tk/canvas.rb

Constant Summary collapse

CItemTypeName = 
nil
CItemTypeToClass = 
{}
CItemID_TBL = 
TkCore::INTERP.create_table

Constants included from TkUtil

TkUtil::None, TkUtil::RELEASE_DATE

Constants included from Tk

Tk::AUTO_PATH, Tk::Fontchooser, Tk::INTERP, Tk::JAPANIZED_TK, Tk::LIBRARY_PATH, Tk::MAINLOOP, Tk::PACKAGE_PATH, Tk::RELEASE_DATE, Tk::TCL_LIBRARY_PATH, Tk::TCL_MAJOR_VERSION, Tk::TCL_MINOR_VERSION, Tk::TCL_PACKAGE_PATH, Tk::TCL_PATCHLEVEL, Tk::TCL_PRECISION, Tk::TCL_VERSION, Tk::TK_MAJOR_VERSION, Tk::TK_MINOR_VERSION, Tk::TK_PATCHLEVEL, Tk::TK_VERSION, Tk::Tkextlib_RELEASE_DATE, Tk::TreeCtrl_Widget, Tk::X_Scrollable, Tk::Y_Scrollable

Constants included from Tk::Encoding

Tk::Encoding::BINARY, Tk::Encoding::BINARY_NAME, Tk::Encoding::DEFAULT_EXTERNAL_NAME, Tk::Encoding::DEFAULT_INTERNAL_NAME, Tk::Encoding::ENCODING_TABLE, Tk::Encoding::RubyEncoding, Tk::Encoding::TkCommandNames, Tk::Encoding::UNKNOWN, Tk::Encoding::UTF8_NAME

Constants included from TkCore

TkCore::EventFlag, TkCore::INTERP, TkCore::INTERP_MUTEX, TkCore::INTERP_ROOT_CHECK, TkCore::INTERP_THREAD, TkCore::INTERP_THREAD_STATUS, TkCore::RUN_EVENTLOOP_ON_MAIN_THREAD, TkCore::WIDGET_DESTROY_HOOK, TkCore::WITH_ENCODING, TkCore::WITH_RUBY_VM

Constants included from TkComm

TkComm::GET_CONFIGINFO_AS_ARRAY, TkComm::GET_CONFIGINFOwoRES_AS_ARRAY, TkComm::TkExtlibAutoloadModule, TkComm::Tk_CMDTBL, TkComm::Tk_IDs, TkComm::Tk_WINDOWS, TkComm::USE_TCLs_LIST_FUNCTIONS, TkComm::WidgetClassNames

Class Method Summary collapse

Instance Method Summary collapse

Methods included from TkItemConfigOptkeys

__conv_item_keyonly_opts, itemconfig_hash_kv

Methods included from TkUtil

#_conv_args, _conv_args, #_fromUTF8, #_get_eval_enc_str, _get_eval_enc_str, #_get_eval_string, _get_eval_string, _symbolkey2str, #_symbolkey2str, #_toUTF8, #bool, bool, callback, eval_cmd, #hash_kv, hash_kv, install_cmd, #num_or_nil, num_or_nil, num_or_str, #num_or_str, number, #number, string, #string, uninstall_cmd, untrust

Methods included from Tk

BinaryString, EncodedString, Grid, Pack, Place, UTF8_String, __create_widget_set__, __disable_toplevel_control__, __import_toplevel_aliases__, __regist_toplevel_aliases__, __remove_toplevel_aliases__, __reset_toplevel_owner__, __set_loaded_toplevel_aliases__, __set_toplevel_aliases__, __toplevel_alias_setup_proc__, _replace_toplevel_aliases, add_kinsoku, backup_current_topdef, bell, bell_on_display, const_missing, current_grabs, cursor_display, default_widget_set, default_widget_set=, define_topalias, define_topobj, delete_kinsoku, destroy, encoding, encoding=, errorCode, errorInfo, exit, focus, focus_lastfor, focus_next, focus_prev, focus_to, fromUTF8, grid, grid_forget, has_mainwindow?, load_tcllibrary, load_tclscript, load_tclscript_rsrc, load_tclscript_rsrcid, lower_window, pack, pack_forget, pkgconfig_get, pkgconfig_list, place, place_forget, raise_window, regist_sym_for_loaded_file, replace_topalias, replace_topobj, root, set_topalias, show_kinsoku, sleep, strictMotif, subst_tk_backslash, subst_utf_backslash, tcl_pkgconfig_get, tcl_pkgconfig_list, thread_update, thread_update_idletasks, tk_pkgconfig_get, tk_pkgconfig_list, toUTF8, to_backslash_sequence, topalias_defined?, toplevel_aliases_on_widget_set, topobj_defined?, ungrid, unload_tcllibrary, unpack, unplace, update, update, update_idletasks, utf_to_backslash, utf_to_backslash_sequence, wakeup, widget_set_symbols

Methods included from Tk::Encoding

#default_encoding=, #encoding=, #encoding_convertfrom, #encoding_convertto, #encoding_dirs, #encoding_dirs=, #encoding_name, #encoding_names, #encoding_obj, #encoding_objs, #encoding_system=, #encoding_system_name, #encoding_system_obj, #force_default_encoding, #force_default_encoding=, #force_default_encoding?, #tk_encoding_names

Methods included from TkCore

#_tk_call_to_list_core, #after, #after_cancel, #after_idle, #appname, #appsend, #appsend_deny, #appsend_displayof, callback, #callback_break, #callback_continue, #callback_return, #chooseColor, #chooseDirectory, #do_one_event, #event_generate, #getMultipleOpenFile, #getMultipleSaveFile, #getOpenFile, #getSaveFile, #get_eventloop_tick, #get_eventloop_weight, #get_no_event_wait, #inactive, #inactive_displayof, #info, #ip_eval, #ip_eval_with_enc, #ip_eval_without_enc, #ip_invoke, #ip_invoke_with_enc, #ip_invoke_without_enc, #is_mainloop?, #load_cmd_on_ip, #mainloop, #mainloop_exist?, #mainloop_thread?, #mainloop_watchdog, #messageBox, #rb_appsend, #rb_appsend_displayof, #reset_inactive, #reset_inactive_displayof, #restart, #scaling, #scaling_displayof, #set_eventloop_tick, #set_eventloop_weight, #set_no_event_wait, #tk_call, #tk_call_to_list, #tk_call_to_list_with_enc, #tk_call_to_list_without_enc, #tk_call_to_simplelist, #tk_call_to_simplelist_with_enc, #tk_call_to_simplelist_without_enc, #tk_call_with_enc, #tk_call_without_enc, #windowingsystem

Methods included from TkComm

_at, _callback_entry?, _callback_entry_class?, _curr_cmd_id, _fromUTF8, _genobj_for_tkwidget, _next_cmd_id, _toUTF8, array2tk_list, #bind, #bind_all, #bind_append, #bind_append_all, #bind_remove, #bind_remove_all, #bindinfo, #bindinfo_all, bool, image_obj, #install_cmd, install_cmd, list, num_or_nil, num_or_str, number, procedure, simplelist, slice_ary, string, #subst, tk_tcl2ruby, uninstall_cmd, #uninstall_cmd, window

Methods included from TkEvent

#install_bind, #install_bind_for_event_class

Methods included from TkcTagAccess

#&, #-@, #^, #addtag, #bbox, #bind, #bind_append, #bind_remove, #bindinfo, #cget, #cget_strict, #cget_tkstring, #configinfo, #configure, #coords, #current_configinfo, #dchars, #dtag, #find, #focus, #gettags, #icursor, #imove, #index, #insert, #itemtype, #lower, #move, #moveto, #raise, #rchars, #scale, #select_adjust, #select_from, #select_to, #|

Methods included from TkTreatTagFont

#font_configinfo, #font_configure, #font_copy, #kanjifont_configure, #kanjifont_copy, #latinfont_configure, #latinfont_copy

Methods inherited from TkObject

#epath, #event_generate, #method_missing, #path, #tk_send, #tk_send_to_list, #tk_send_to_list_with_enc, #tk_send_to_list_without_enc, #tk_send_to_simplelist, #tk_send_to_simplelist_with_enc, #tk_send_to_simplelist_without_enc, #tk_send_with_enc, #tk_send_without_enc, #to_eval

Methods included from TkBindCore

#bind, #bind_append, #bind_remove, #bindinfo

Methods included from TkConfigMethod

#[], #[]=, __IGNORE_UNKNOWN_CONFIGURE_OPTION__, #__check_available_configure_options, __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!, #cget, #cget_strict, #cget_tkstring, #config_hash_kv, #configinfo, #configure, #configure_cmd, #current_configinfo

Methods included from TkTreatFont

#font_configinfo, #font_configure, #font_copy, #kanjifont_configure, #kanjifont_copy, #latinfont_configure, #latinfont_copy

Methods inherited from TkKernel

new

Constructor Details

#initialize(parent, *args) ⇒ TkcItem

Returns a new instance of TkcItem.



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# File 'lib/tk/canvas.rb', line 744

def initialize(parent, *args)
  #unless parent.kind_of?(Tk::Canvas)
  #  fail ArgumentError, "expect Tk::Canvas for 1st argument"
  #end
  @parent = @c = parent
  @path = parent.path

  @id = create_self(*args) # an integer number as 'canvas item id'
  CItemID_TBL.mutex.synchronize{
    CItemID_TBL[@path] = {} unless CItemID_TBL[@path]
    CItemID_TBL[@path][@id] = self
  }
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class TkObject

Class Method Details

.create(canvas, *args) ⇒ Object 



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# File 'lib/tk/canvas.rb', line 731

def self.create(canvas, *args)
  unless self::CItemTypeName
    fail RuntimeError, "#{self} is an abstract class"
  end
  args, fontkeys, methodkeys = _parse_create_args(args)
  idnum = tk_call_without_enc(canvas.path, 'create',
                              self::CItemTypeName, *args)
  canvas.itemconfigure(idnum, fontkeys) unless fontkeys.empty?
  canvas.itemconfigure(idnum, methodkeys) unless methodkeys.empty?
  idnum.to_i  # 'canvas item id' is an integer number
end

.id2obj(canvas, id) ⇒ Object 



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# File 'lib/tk/canvas.rb', line 663

def TkcItem.id2obj(canvas, id)
  cpath = canvas.path
  CItemID_TBL.mutex.synchronize{
    if CItemID_TBL[cpath]
      CItemID_TBL[cpath][id]? CItemID_TBL[cpath][id]: id
    else
      id
    end
  }
end

.type2class(type) ⇒ Object 



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# File 'lib/tk/canvas.rb', line 659

def TkcItem.type2class(type)
  CItemTypeToClass[type]
end

Instance Method Details

#delete ⇒ Object Also known as: remove, destroy 



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# File 'lib/tk/canvas.rb', line 774

def delete
  @c.delete @id
  CItemID_TBL.mutex.synchronize{
    CItemID_TBL[@path].delete(@id) if CItemID_TBL[@path]
  }
  self
end

#exist? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tk/canvas.rb', line 766

def exist?
  if @c.find_withtag(@id)
    true
  else
    false
  end
end

#id ⇒ Object 



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# File 'lib/tk/canvas.rb', line 762

def id
  @id
end