summaryrefslogtreecommitdiff
path: root/ext/tk/lib/tkextlib/blt/dragdrop.rb
blob: 201548504a195cf32def70f70ee4867857c75b88 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
#
#  tkextlib/blt/dragdrop.rb
#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
#

require 'tk'
require 'tk/itemconfig'
require 'tkextlib/blt.rb'

module Tk::BLT
  module DragDrop
    extend TkCore

    TkCommandNames = ['::blt::drag&drop'.freeze].freeze

    class Token < TkWindow
      WidgetClassName = 'DragDropToken'.freeze
      WidgetClassNames[WidgetClassName] = self

      def initialize(arg)
        if arg.kind_of?(Hash) # arg is a hash includes the widgetpath of token
          arg = _symbolkey2str(arg)
          install_win(nil, arg['widgetname'])
        else  # arg is a drag&drop source
          tk_call('::blt::drag&drop', 'source', arg)
          install_win(nil, tk_call('::blt::drag&drop', 'token', arg))
        end
      end
    end

    ###################################

    extend TkItemConfigMethod
    extend Tk::ValidateConfigure

    class << self
      def __item_config_cmd(id)  # id := ['source'|'target', win]
        ['::blt::drag&drop', id[0], id[1]]
      end
      private :__item_config_cmd

      def __item_boolval_optkeys(id)
        super(id) << 'selftarget'
      end
      private :__item_boolval_optkeys

      def __item_listval_optkeys(id)
        super(id) << 'send'
      end
      private :__item_listval_optkeys

      def __item_strval_optkeys(id)
        super(id) << 'rejectbg' << 'rejectfg' << 'tokenbg'
      end
      private :__item_strval_optkeys

      undef itemcget
      private :itemconfigure, :itemconfiginfo, :current_itemconfiginfo

      def source_configure(win, slot, value=None)
        itemconfigure(['source', win], slot, value)
      end
      def source_configinfo(win, slot=nil)
        itemconfiginfo(['source', win], slot)
      end
      def current_source_configinfo(win, slot=nil)
        current_itemconfiginfo(['source', win], slot)
      end
    end

    class PackageCommand < TkValidateCommand
      class ValidateArgs < TkUtil::CallbackSubst
        KEY_TBL = [
          [ ?t, ?w, :token ],
          [ ?W, ?w, :widget ],
          nil
        ]

        PROC_TBL = [
          [ ?w, TkComm.method(:window) ], 
          nil
        ]

=begin
        # for Ruby m17n :: ?x --> String --> char-code ( getbyte(0) )
        KEY_TBL.map!{|inf|
          if inf.kind_of?(Array)
            inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
            inf[1] = inf[1].getbyte(0) if inf[1].kind_of?(String)
          end
          inf
        }

        PROC_TBL.map!{|inf|
          if inf.kind_of?(Array)
            inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
          end
          inf
        }
=end

        _setup_subst_table(KEY_TBL, PROC_TBL)

        def self.ret_val(val)
          val
        end
      end

      def self._config_keys
        ['packagecmd']
      end
    end

    class SiteCommand < TkValidateCommand
      class ValidateArgs < TkUtil::CallbackSubst
        KEY_TBL = [
          [ ?s, ?b, :compatible ],
          [ ?t, ?w, :token ],
          nil
        ]

        PROC_TBL = [
          [ ?b, TkComm.method(:bool) ], 
          [ ?w, TkComm.method(:window) ], 
          nil
        ]

=begin
        # for Ruby m17n :: ?x --> String --> char-code ( getbyte(0) )
        KEY_TBL.map!{|inf|
          if inf.kind_of?(Array)
            inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
            inf[1] = inf[1].getbyte(0) if inf[1].kind_of?(String)
          end
          inf
        }

        PROC_TBL.map!{|inf|
          if inf.kind_of?(Array)
            inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
          end
          inf
        }
=end

        _setup_subst_table(KEY_TBL, PROC_TBL)

        def self.ret_val(val)
          val
        end
      end

      def self._config_keys
        ['sitecmd']
      end
    end

    def self.__validation_class_list
      super() << PackageCommand << SiteCommand
    end

    class << self
      Tk::ValidateConfigure.__def_validcmd(binding, PackageCommand)
      Tk::ValidateConfigure.__def_validcmd(binding, SiteCommand)
    end

    ###################################

    class DnD_Handle < TkUtil::CallbackSubst
      KEY_TBL = [
        [ ?i, ?s, :ip_name ],
        [ ?v, ?v, :value ],
        [ ?W, ?w, :widget ],
        nil
      ]

      PROC_TBL = [
        [ ?i, TkComm.method(:string) ], 
        [ ?v, TkComm.method(:tk_tcl2ruby) ], 
        [ ?w, TkComm.method(:window) ], 
        nil
      ]

=begin
      # for Ruby m17n :: ?x --> String --> char-code ( getbyte(0) )
      KEY_TBL.map!{|inf|
        if inf.kind_of?(Array)
          inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
          inf[1] = inf[1].getbyte(0) if inf[1].kind_of?(String)
        end
        inf
      }

      PROC_TBL.map!{|inf|
        if inf.kind_of?(Array)
          inf[0] = inf[0].getbyte(0) if inf[0].kind_of?(String)
        end
        inf
      }
=end

      _setup_subst_table(KEY_TBL, PROC_TBL)
    end

    def self.source_handler(win, datatype, cmd=Proc.new, *args)
      _bind_for_event_class(DnD_Handle, 
                            ['::blt::drag&drop', 'source', win, 'handler'], 
                            cmd, *args)
    end

    def self.target_handler(win, datatype, cmd=Proc.new, *args)
      _bind_for_event_class(DnD_Handle, 
                            ['::blt::drag&drop', 'target', win, 'handler'], 
                            cmd, *args)
    end

    ###################################

    def self.init_source(win)
      tk_call('::blt::drag&drop', 'source', win)
    end

    def self.source()
      list(tk_call('::blt::drag&drop', 'source'))
    end

    def self.source_handler_list(win)
      simplelist(tk_call('::blt::drag&drop', 'source', win, 'handler'))
    end
    def self.source_handler_info(win, type)
      tk_tcl2ruby(tk_call('::blt::drag&drop', 'source', win, 'handler', type))
    end

    def self.target
      list(tk_call('::blt::drag&drop', 'target'))
    end
    def self.target_handler_list(win)
      simplelist(tk_call('::blt::drag&drop', 'target', win, 'handler'))
    end

    def self.handle_target(win, type, val=None)
      tk_call('::blt::drag&drop', 'target', win, 'handle', type, val)
    end

    def self.token(win)
      window(tk_call('::blt::drag&drop', 'token', win))
    end

    def self.drag(win, x, y)
      tk_call('::blt::drag&drop', 'drag', win, x, y)
    end
    def self.drop(win, x, y)
      tk_call('::blt::drag&drop', 'drop', win, x, y)
    end

    def self.errors(cmd=Proc.new)
      tk_call('::blt::drag&drop', 'errors', cmd)
    end

    def self.active
      bool(tk_call('::blt::drag&drop', 'active'))
    end

    def self.location(x=None, y=None)
      list(tk_call('::blt::drag&drop', 'location', x, y))
    end
  end
end