1#
2#  tkextlib/tcllib/crosshair.rb
3#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
4#
5#   * Part of tcllib extension
6#   * Crosshairs for Tk canvas
7#
8
9require 'tk'
10require 'tkextlib/tcllib.rb'
11
12# TkPackage.require('crosshair', '1.0.2')
13TkPackage.require('crosshair')
14
15module Tk::Tcllib
16  module Crosshair
17    PACKAGE_NAME = 'crosshair'.freeze
18    def self.package_name
19      PACKAGE_NAME
20    end
21
22    def self.package_version
23      begin
24        TkPackage.require('crosshair')
25      rescue
26        ''
27      end
28    end
29  end
30end
31
32module Tk::Tcllib::Crosshair
33  include TkCore
34  TkCommandNames = ['::crosshair::crosshair'.freeze].freeze
35
36  def self.crosshair(w, keys={})
37    Tk.tk_call('::crosshair::crosshair', w, *hash_kv(keys))
38    w
39  end
40  def self.on(w, keys={})
41    self.crosshair(w, keys)
42  end
43
44  def self.off(w)
45    Tk.tk_call('::crosshair::off', w)
46    w
47  end
48
49  def self.track_on(w, &b)
50    Tk.tk_call('::crosshair::track_on', w, b)
51    w
52  end
53
54  def self.track_off(w)
55    Tk.tk_call('::crosshair::track_off', w)
56    w
57  end
58end
59
60class << Tk::Tcllib::Crosshair
61  include TkComm
62  include TkCanvasItemConfig
63
64  def __item_methodcall_optkeys(id)
65    {}
66  end
67  private :__item_methodcall_optkeys
68
69  def __item_config_cmd(id)
70    # maybe need to override
71    ['::crosshair::configure', id]
72  end
73  private :__item_config_cmd
74
75  private :itemcget_tkstring, :itemcget, :itemcget_strict
76  private :itemconfigure, :itemconfiginfo, :current_itemconfiginfo
77
78  def confugure(w, slot, value=None)
79    itemconfigure(w, slot, value)
80  end
81  def confuginfo(w, slot = nil)
82    itemconfiginfo(w, slot)
83  end
84  def current_configinfo(w, slot = nil)
85    current_itemconfiginfo(w, slot)
86  end
87  def cget(w, slot)
88    current_itemconfiginfo(w, slot).values[0]
89  end
90end
91
92module Tk::Tcllib::Crosshair
93  def crosshair_on(keys={})
94    Tk::Tcllib::Crosshair.on(self, keys)
95  end
96  def crosshair_off
97    Tk::Tcllib::Crosshair.off(self)
98  end
99  def crosshair_track_on(&b)
100    Tk::Tcllib::Crosshair.track_on(self, &b)
101  end
102  def crosshair_track_off
103    Tk::Tcllib::Crosshair.track_off(self)
104  end
105  def crosshair_configure(*args)
106    Tk::Tcllib::Crosshair.configure(self, *args)
107  end
108  def crosshair_configinfo(slot = nil)
109    Tk::Tcllib::Crosshair.configinfo(self, slot)
110  end
111  def crosshair_current_configinfo(slot = nil)
112    Tk::Tcllib::Crosshair.current_configinfo(self, slot)
113  end
114  def crosshair_cget(slot)
115    Tk::Tcllib::Crosshair.cget(self, slot)
116  end
117end
118