summaryrefslogtreecommitdiff
path: root/lib/utilities/baseconverter.tcl
blob: 8c605a682f671a214d8741c89a87f936f77abb90 (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
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
#!/usr/bin/tclsh
# Part of MCU 8051 IDE ( http://http://www.moravia-microsystems.com/mcu8051ide )

############################################################################
#    Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 by Martin OŇ°mera     #
#    martin.osmera@gmail.com                                               #
#                                                                          #
#    Copyright (C) 2014 by Moravia Microsystems, s.r.o.                    #
#    martin.osmera@moravia-microsystems.com                                #
#                                                                          #
#    This program is free software; you can redistribute it and#or modify  #
#    it under the terms of the GNU General Public License as published by  #
#    the Free Software Foundation; either version 2 of the License, or     #
#    (at your option) any later version.                                   #
#                                                                          #
#    This program is distributed in the hope that it will be useful,       #
#    but WITHOUT ANY WARRANTY; without even the implied warranty of        #
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
#    GNU General Public License for more details.                          #
#                                                                          #
#    You should have received a copy of the GNU General Public License     #
#    along with this program; if not, write to the                         #
#    Free Software Foundation, Inc.,                                       #
#    59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             #
############################################################################

# >>> File inclusion guard
if { ! [ info exists _BASECONVERTER_TCL ] } {
set _BASECONVERTER_TCL _
# <<< File inclusion guard


# --------------------------------------------------------------------------
# DESCRIPTION
# Utility "Base Converter"
# --------------------------------------------------------------------------

class BaseConverter {
	## COMMON
	public common base_c_count			0	;# Int: Counter of class instances
	public common INITIAL_HEIGHT			130	;# Int: Initial heightof the window  in pixels
	public common INITIAL_WIDTH			150	;# Int: Initial width of the window in pixels
	public common EXTENDED_WIDTH			340	;# Int: Width of the window when it is in extended mode

	# On MS Windows these values has to be a bit different
	if {$::MICROSOFT_WINDOWS} {
		set INITIAL_HEIGHT	125
		set INITIAL_WIDTH	165
		set EXTENDED_WIDTH	355
	}
	 # Font entryboxes
	public common entry_font [font create		\
		-size -12			\
		-family $::DEFAULT_FIXED_FONT	\
		-weight bold			\
	]

	## PRIVATE
	private variable win				;# Widget: Window
	private variable win_obj			;# Object: Window object

	private variable less_more_button		;# Widget: Button "Less/More"
	private variable enlarge_shrink_button		;# Widget: Button "Enlarge/Shrink"

	private variable right_top_frame		;# Widget: Right top frame
	private variable left_top_frame			;# Widget: Left top frame

	private variable less_more		0	;# Bool: Mode flag "More"
	private variable large			0	;# Bool: Flag enlarged

	private variable left_rows_created	0	;# Int: Number of created rows in the left frame
	private variable right_rows_created	0	;# Int: Number of created rows in the right frame

	private variable validation_in_progress	0	;# Bool: Validation procedure in progress

	private variable val_to_set	[list {} {} {}]	;# List: Decimal values to set in the bottom 3 entryboxes after enlarge

	private variable entry_h	;# Array of Widget: Entrybox "HEX", index is row (starting from 0)
	private variable entry_d	;# Array of Widget: Entrybox "DEC", index is row (starting from 0)
	private variable entry_b	;# Array of Widget: Entrybox "BIN", index is row (starting from 0)
	private variable entry_o	;# Array of Widget: Entrybox "OCT", index is row (starting from 0)
	private variable entry_t	;# Array of Widget: Canvas containing bits
	private variable entry_c0	;# Array of Widget: Entrybox "BCD L", index is row (starting from 0)
	private variable entry_c1	;# Array of Widget: Entrybox "BCD H", index is row (starting from 0)
	private variable entry_a	;# Array of Widget: Entrybox "ASCII", index is row (starting from 0)
	private variable bit		;# CanvasObject: bit rectangle, $bit(row_number,bit_number)

	## Object constructor
	constructor {} {
		# Configure ttk styles
		if {!$base_c_count} {
			ttk::style configure BaseConverter_Focused_D.TEntry -fieldbackground {#AAAAFF}
			ttk::style configure BaseConverter_Focused_I.TEntry -fieldbackground {#DDDDFF}
			ttk::style configure BaseConverter_NotFocused.TEntry
		}

		incr base_c_count

		create_window
		create_gui
	}

	## Object destructor
	destructor {
	}

	## Commence a new configuration
	 # @parm List conf_list - Configuration list previously returned by proc. "get_config"
	 # @return void
	public method set_config {conf_list} {
		# Set window position
		$win_obj geometry			\
			{} {}				\
			[lindex $conf_list {0 2}]	\
			[lindex $conf_list {0 3}]

		# Adjust modes
		if {[lindex $conf_list 2]} {
			less_more
		}
		if {[lindex $conf_list 3]} {
			enlarge_shrink
		}

		# Fill in the entryboxes
		for {set i 0} {$i < $left_rows_created} {incr i} {
			validate {t} $i [lindex $conf_list [list 4 $i]]
		}
		if {$left_rows_created < 6} {
			for {set i 0; set j 3} {$i < 3} {incr i; incr j} {
				lset val_to_set $i [lindex $conf_list [list 4 $j]]
			}
		}

		# Adjust flag "Shaded"
		if {[lindex $conf_list 1]} {
			update
			$win_obj collapse_expand
		}
	}

	## Get configuration list
	 # @return List - Configuration list
	public method get_config {} {
		# Create list of current values in the entryboxes
		set values {}
		lappend values [$entry_d(0) get] [$entry_d(1) get] [$entry_d(2) get]
		if {$left_rows_created > 3} {
			lappend values			\
				[$entry_d(3) get]	\
				[$entry_d(4) get]	\
				[$entry_d(5) get]
		} else {
			lappend values {} {} {}
		}

		# Finalize configuration list
		return [list				\
			[$win_obj geometry]		\
			[$win_obj get_minim_flag]	\
			$less_more			\
			$large				\
			$values				\
		]
	}

	## Create window using class "InnerWindow"
	 # @return void
	private method create_window {} {
		set win_obj [InnerWindow #auto				\
			.baseconverter_${base_c_count}			\
			[list $INITIAL_WIDTH $INITIAL_HEIGHT 100 100]	\
			[mc "Converter"]				\
			::ICONS::16::kaboodleloop			\
			"$this close_window"				\
		]
		set win [$win_obj get_frame]
	}

	## Create all window GUI
	 # @return void
	private method create_gui {} {
		# Create frames
		set top_frame [frame $win.top_frame]
		set left_top_frame [frame $top_frame.left_frame]
		set right_top_frame [frame $top_frame.right_frame]
		set bottom_frame [frame $win.bottom_frame]

		# Start in mode "Shirked" + !"More"
		create_left_frame

		## Create buttons in the bottom frame
		 # Button "Enlarge"/"Shrink"
		set enlarge_shrink_button					\
			[ttk::button $bottom_frame.enlarge_shrink_button	\
			-text [mc "Enlarge"]					\
			-compound left						\
			-image ::ICONS::16::1downarrow				\
			-command "$this enlarge_shrink"				\
			-width 7						\
			-style Flat.TButton					\
		]
		pack $enlarge_shrink_button -side left -padx 2 -pady 2
		 # Button "More"/"Less"
		set less_more_button [ttk::button $bottom_frame.less_more_button\
			-text [mc "More"]					\
			-compound right						\
			-image ::ICONS::16::1rightarrow				\
			-command "$this less_more"				\
			-width 5						\
			-style Flat.TButton					\
		]
		pack $less_more_button -side right -padx 2 -pady 2

		# Pack frames
		pack $left_top_frame -side left -anchor nw
		pack $top_frame -fill both -expand 1
		pack $bottom_frame -fill x

		# Focus the firts hexadecimal entrybox
		focus -force $entry_h(0)
	}

	## Close the window and forget configuration
	 # Calls proc. "::X::__base_converter_close"
	 # @return void
	public method close_window {} {
		::X::__base_converter_close $this
		$win_obj close_window
		delete object $this
	}

	## Validator for entryboxes
	 # Can be used to set a certain value for a certain row in this way:
	 # validate {t} $row_number $decimal_value
	 # @parm Char type	- Value source
	 #	h  - Hexadecimal
	 #	d  - Decimal
	 #	b  - Binary
	 #	o  - Octal
	 #	c0 - BCD - Low order nibble
	 #	c1 - BCD - High order nibble
	 #	a  - ASCII
	 #	t  - Bits (Do not validate, just accept)
	 # @parm Int row	- Row number, starting at zero
	 # @parm String content	- String to validate and evaluate
	 # @return Bool - 1 == Legal; 0 == Illegal
	public method validate {type row content} {
		# This method cannot be recursive in any way
		if {$validation_in_progress} {return 1}
		set validation_in_progress 1

		# Local variables
		set result	1	;# Bool: Result of validation
		set zero_length 0	;# Bool: Zero length input string
		set value	{}	;# Mixed: Decimal representation the validate value or {} (no value)

		# Detect zero length input string
		if {[string length $content]} {
			set zero_length 0
		} else {
			set zero_length 1
			set content 0
		}

		# Validate input string
		switch -- $type {
			{h} {	;# Hexadecimal
				if {![regexp {^[[:xdigit:]]{0,2}$} $content]} {
					set result 0
				} else {
					scan $content "%x" value
				}
			}
			{d} {	;# Decimal
				if {![regexp {^[[:digit:]]{0,3}$} $content]} {
					set result 0
				} elseif {$content > 255} {
					set result 0
				} else {
					set value $content
				}
			}
			{b} {	;# Binary
				if {![regexp {^[01]{0,8}$} $content]} {
					set result 0
				} else {
					set value [NumSystem::bin2dec $content]
				}
			}
			{o} {	;# Octal
				if {![regexp {^[0-7]{0,3}$} $content]} {
					set result 0
				} elseif {$content > 377} {
					set result 0
				} else {
					scan $content "%o" value
				}
			}
			{c0} {	;# BCD - Low order nibble
				if {![regexp {^[[:digit:]]{0,2}$} $content]} {
					set result 0
				} elseif {$content > 15} {
					set result 0
				} else {
					set value [$entry_c1($row) get]
					if {![string length $value]} {
						set value 0
					}
					set value [expr {$content + ($value << 4)}]
				}
				set zero_length 0
			}
			{c1} {	;# BCD - High order nibble
				if {![regexp {^[[:digit:]]{0,2}$} $content]} {
					set result 0
				} elseif {$content > 15} {
					set result 0
				} else {
					set value [$entry_c0($row) get]
					if {![string length $value]} {
						set value 0
					}
					set value [expr {$value + ($content << 4)}]
				}
				set zero_length 0
			}
			{a} {	;# ASCII
				if {$zero_length} {
					set content {}
				}
				set zero_length 0

				if {[string length $content] > 1} {
					set result 0
				} else {
					set value [NumSystem::ascii2dec $content]
				}

				if {![string length $value]} {
					set value [$entry_d($row) get]
					if {![string length $value]} {
						set zero_length 1
					}
				}
			}
			{t} {	;# Bits (Do not validate, just accept)
				set value $content
			}
		}

		# Synchronize with the other entryboxes on the row
		if {$result} {
			fill_entryboxes $row $value $zero_length $type
		}

		# Finish ...
		set validation_in_progress 0
		return $result
	}

	## Synchronize the specified value with the other entryboxes on the row
	 # @parm Int row		- Row number
	 # @parm Int value		- Value to fill in (in decimal)
	 # @parm Bool zero_length	- Just clear all entryboxes
	 # @parm Char exclude		- Entrybox to exclude during filling
	 #	h  - Hexadecimal
	 #	d  - Decimal
	 #	b  - Binary
	 #	o  - Octal
	 #	c0 - BCD - Low order nibble
	 #	c1 - BCD - High order nibble
	 #	a  - ASCII
	 #	t  - No meaning ...
	 # @return void
	private method fill_entryboxes {row value zero_length exclude} {
		# Clear entryboxes on the left
		foreach w [list				\
				$entry_h($row)	$entry_d($row)	\
				$entry_b($row)	$entry_o($row)	\
			] t {
				h		d
				b		o
			}	\
		{
			if {$exclude == $t} {
				continue
			}
			$w delete 0 end
		}

		# Fill in entryboxes on the left
		if {!$zero_length} {
			if {$exclude != {h}} {
				$entry_h($row) insert 0 [format {%X} $value]
			}
			if {$exclude != {d}} {
				$entry_d($row) insert 0 $value
			}
			if {$exclude != {b}} {
				$entry_b($row) insert 0 [NumSystem::dec2bin $value]
			}
			if {$exclude != {o}} {
				$entry_o($row) insert 0 [format {%o} $value]
			}
		}

		if {$row < $right_rows_created} {
			# Clear entryboxes on the right
			foreach w [list $entry_c0($row) $entry_c1($row) $entry_a($row)] \
				t {c0 c1 a} \
			{
				if {$exclude == $t} {
					continue
				}

				$w delete 0 end
			}

			# Adjust canvas widget with bit rectangles
			set mask 1
			for {set i 0} {$i < 8} {incr i} {
				if {$zero_length} {
					set fill {#FFFFFF}
					set outline {#888888}
				} elseif {[expr $value & $mask]} {
					set fill ${::BitMap::one_fill}
					set outline ${::BitMap::one_outline}
				} else {
					set fill ${::BitMap::zero_fill}
					set outline ${::BitMap::zero_outline}
				}

				$entry_t($row) itemconfigure $bit($row,$i)	\
					-fill $fill -outline $outline

				set mask [expr {$mask << 1}]
			}

			# Fill in entryboxes on the right
			if {!$zero_length} {
				if {$exclude != {c0}} {
					$entry_c0($row) insert 0 [expr {$value & 0x0F}]
				}
				if {$exclude != {c1}} {
					$entry_c1($row) insert 0 [expr {$value >> 4}]
				}
				if {$exclude != {a}} {
					if {$value > 31 && $value < 127} {
						$entry_a($row) insert 0 [format {%c} $value]
					}
				}
			}
		}
	}

	## Handles event <Enter> on canvas widget with bits,
	 # @parm Int r - Row number (0..5)
	 # @parm Int b - Bit number (0..7)
	 # @return void
	public method bit_enter {r b} {
		# Determinate current rectangle fill and outline
		set fill [$entry_t($r) itemcget $bit($r,$b) -fill]
		set outline [$entry_t($r) itemcget $bit($r,$b) -outline]

		# Determinate new rectangle fill and outline
		if {$fill == ${::BitMap::one_fill}} {
			set fill ${::BitMap::one_a_fill}
			set outline ${::BitMap::one_a_outline}
		} elseif {$fill == ${::BitMap::zero_fill}} {
			set fill ${::BitMap::zero_a_fill}
			set outline ${::BitMap::zero_a_outline}
		}

		# Set new rectangle fill and outline and adjust cursor
		$entry_t($r) itemconfigure $bit($r,$b)	\
			-fill $fill -outline $outline
		$entry_t($r) configure -cursor hand2
	}

	## Handles event <leave> on canvas widget with bits,
	 # @parm Int r - Row number (0..5)
	 # @parm Int b - Bit number (0..7)
	 # @return void
	public method bit_leave {r b} {
		# Determinate current rectangle fill and outline
		set fill [$entry_t($r) itemcget $bit($r,$b) -fill]
		set outline [$entry_t($r) itemcget $bit($r,$b) -outline]

		# Determinate new rectangle fill and outline
		if {$fill == ${::BitMap::one_a_fill}} {
			set fill ${::BitMap::one_fill}
			set outline ${::BitMap::one_outline}
		} elseif {$fill == ${::BitMap::zero_a_fill}} {
			set fill ${::BitMap::zero_fill}
			set outline ${::BitMap::zero_outline}
		}

		# Set new rectangle fill and outline and adjust cursor
		$entry_t($r) itemconfigure $bit($r,$b)	\
			-fill $fill -outline $outline
		$entry_t($r) configure -cursor left_ptr
	}

	## Handles event <Button-1> on canvas widget with bits,
	 # @parm Int r - Row number (0..5)
	 # @parm Int b - Bit number (0..7)
	 # @return void
	public method bit_click {r b} {
		# Determinate current rectangle fill
		set fill [$entry_t($r) itemcget $bit($r,$b) -fill]

		# Determinate new bit value
		if {
			$fill == ${::BitMap::one_a_fill}
				||
			$fill == ${::BitMap::one_fill}
		} then {
			set value 0
		} else {
			set value [expr {1 << $b}]
		}

		# Determinate new value for the whole row
		set dec [$entry_d($r) get]
		if {![string length $dec]} {
			set dec 0
		}
		set dec [expr {$dec & (0x0FF ^ (1 << $b))}]
		incr dec $value

		# Set new value for the whole row
		validate {t} $r $dec
	}

	## Set envent binds specific to this appliaction for the specified entrybox
	 # @parm Widget w	- Entrybox widget
	 # @parm Char t		- Entrybox type
	 #	h  - Hexadecimal
	 #	d  - Decimal
	 #	b  - Binary
	 #	o  - Octal
	 #	c0 - BCD - Low order nibble
	 #	c1 - BCD - High order nibble
	 #	a  - ASCII
	 # @parm Int r		- Row number (0..5)
	 # @return void
	private method set_bindings_for_an_entrybox {w t r} {
		bind $w <Key-Up>		"$this entry_key $t $r u; break"
		bind $w <Key-Down>		"$this entry_key $t $r d; break"
		bind $w <Key-Left>		"$this entry_key $t $r l; break"
		bind $w <Key-Right>		"$this entry_key $t $r r; break"
		bind $w <Key-Tab>		"$this entry_key $t $r t; break"
		if {!$::MICROSOFT_WINDOWS} {
			bind $w <Key-ISO_Left_Tab> "$this entry_key $t $r s; break"
		}
		bind $w <Key-Return>		"$this entry_key $t $r e; break"
		bind $w <Key-KP_Enter>		"$this entry_key $t $r e; break"

		bind $w <FocusIn>		"$this entry_focus $t $r 1"
		bind $w <FocusOut>		"$this entry_focus $t $r 0"
	}

	## Create the left frame of the window
	 # @return void
	private method create_left_frame {} {
		# Create labels
		if {!$left_rows_created} {
			set col 1
			foreach text {
				{HEX} {DEC} {BIN} {OCT}
			} {
				grid [label $left_top_frame.header_lbl_${col}		\
					-font $::smallfont -text [mc $text] -pady 0	\
				] -pady 0 -ipady 0 -row 1 -column $col
				incr col
			}
		}

		# Create entryboxes
		set row 0
		for {set row $left_rows_created} {$row < ($large ? 6 : 3)} {incr row} {
			set col 1
			foreach width {
					2 3 8 3
				} type {
					h d b o
				}	\
			{
				set entry_wgd [ttk::entry $left_top_frame.e_${type}_$row	\
					-width $width						\
					-validate key 						\
					-validatecommand "$this validate $type $row %P"		\
					-style BaseConverter_NotFocused.TEntry			\
					-font $entry_font					\
				]
				set entry_${type}($row) $entry_wgd
				grid $entry_wgd -row [expr {$row + 2}] -column $col

				set_bindings_for_an_entrybox $entry_wgd $type $row

				incr col
			}
		}
		set left_rows_created $row

		if {$large} {
			for {set i 0; set j 3} {$i < 3} {incr i; incr j} {
				validate {t} $j [lindex $val_to_set $i]
			}
		}
	}

	## Create the left frame of the window
	 # @return void
	private method create_right_frame {} {
		# Create labels
		if {!$right_rows_created} {
			set col 1
			grid [label $right_top_frame.header_lbl_${col}		\
				-font $::smallfont -text [mc "Bits"] -pady 0	\
			] -pady 0 -ipady 0 -row 1 -column $col
			incr col
			grid [label $right_top_frame.header_lbl_${col}		\
				-font $::smallfont -text [mc "BCD"] -pady 0	\
			] -pady 0 -ipady 0 -row 1 -column $col -columnspan 2
			incr col 2
			grid [label $right_top_frame.header_lbl_${col}	\
				-font $::smallfont -text [mc "ASCII"] -pady 0\
			] -pady 0 -ipady 0 -row 1 -column $col
			incr col
		}

		# Create entryboxes and canvas widget
		set row 0
		for {set row $right_rows_created} {$row < ($large ? 6 : 3)} {incr row} {
			set col 1
			foreach type {
					t c a
				}	\
			{
				switch -- $type {
					{a} {	;# ASCII
						set entry_wgd [ttk::entry $right_top_frame.e_${type}_$row	\
							-width 2						\
							-validate all						\
							-validatecommand "$this validate ${type} $row %P"	\
							-style BaseConverter_NotFocused.TEntry			\
							-font $entry_font					\
						]
						set entry_${type}($row) $entry_wgd
						grid $entry_wgd -row [expr {$row + 2}] -column $col
						set_bindings_for_an_entrybox $entry_wgd $type $row
					}
					{c} {	;# BCD
						set entry_wgd [ttk::entry $right_top_frame.e_${type}1_$row	\
							-width 2						\
							-validate all						\
							-validatecommand "$this validate ${type}1 $row %P"	\
							-style BaseConverter_NotFocused.TEntry			\
							-font $entry_font					\
						]
						set entry_${type}1($row) $entry_wgd
						grid $entry_wgd -row [expr {$row + 2}] -column $col
						set_bindings_for_an_entrybox $entry_wgd "${type}1" $row

						incr col

						set entry_wgd [ttk::entry $right_top_frame.e_${type}0_$row	\
							-width 2						\
							-validate all						\
							-validatecommand "$this validate ${type}0 $row %P"	\
							-style BaseConverter_NotFocused.TEntry			\
							-font $entry_font					\
						]
						set entry_${type}0($row) $entry_wgd
						grid $entry_wgd -row [expr {$row + 2}] -column $col
						set_bindings_for_an_entrybox $entry_wgd "${type}0" $row
					}
					{t} {	;# Bits
						set x0 2

						set y0 0
						set y1 2


						set canvas [canvas $right_top_frame.canvas_${row}	\
							-width 118 -height 18 -bd 0 -bg white		\
							-relief flat -highlightthickness 0		\
						]
						grid $canvas -row [expr {$row + 2}] -column $col
						set entry_${type}($row) $canvas

						for {set b 7} {$b >= 0} {incr b -1} {

							# Create bit rectagle
							set bit($row,$b) [$canvas create	\
								rectangle $x0 $y1		\
								[expr {$x0 + 12}]		\
								[expr {$y1 + 12}]		\
								-fill {#FFFFFF}			\
								-outline {#888888}		\
							]

							$canvas bind $bit($row,$b) <Enter> "$this bit_enter $row $b"
							$canvas bind $bit($row,$b) <Leave> "$this bit_leave $row $b"
							$canvas bind $bit($row,$b) <Button-1> "$this bit_click $row $b"

							# Adjust X position for the next rectagle
							incr x0 14
							if {$b == 4} {
								incr x0 3
							}
						}
					}
				}

				incr col
			}
		}
		set right_rows_created $row
	}

	## Switch between modes "Enlarged" and "Shrinked"
	 # @return void
	public method enlarge_shrink {} {
		# Invert the mode flag
		set large [expr {!$large}]

		# Adjust buttons on the bottom bar and create the missing widgets if nessesary
		if {$large} {
			create_right_frame
			create_left_frame
			$win_obj geometry {} [expr {[winfo height $entry_h(0)] * 3 + $INITIAL_HEIGHT}] {} {}
			$enlarge_shrink_button configure	\
				-image ::ICONS::16::1uparrow	\
				-text [mc "Shrink"]
		} else {
			$win_obj geometry {} $INITIAL_HEIGHT {} {}
			$enlarge_shrink_button configure	\
				-image ::ICONS::16::1downarrow	\
				-text [mc "Enlarge"]

			for {set i 0; set j 3} {$i < 3} {incr i; incr j} {
				lset val_to_set $i [$entry_d($j) get]
			}
		}

		# Show or hide appropriate GUI elements
		foreach w [list						\
				entry_h		entry_d		entry_b	\
				entry_o		entry_t		entry_c1\
				entry_c0	entry_a			\
			] c {
				1		2		3
				4		1		2
				3		4
		} {
			for {set i 3; set r 5} {$i < 6} {incr i; incr r} {
				if {$large} {
					grid [subst -nocommands "\$${w}($i)"] -column $c -row $r
				} else {
					grid forget [subst -nocommands "\$${w}($i)"]
				}
			}
		}

	}

	## Switch between modes "More" and "Less"
	 # @return void
	public method less_more {} {
		# Invert the mode flag
		set less_more [expr {!$less_more}]

		# Adjust GUI
		if {$less_more} {
			create_right_frame
			pack $right_top_frame -side left -anchor nw
			$less_more_button configure			\
				-compound left -text [mc "Less"]	\
				-image ::ICONS::16::1leftarrow
			$win_obj geometry $EXTENDED_WIDTH {} {} {}

			for {set i 0} {$i < $right_rows_created} {incr i} {
				validate {t} $i [$entry_d($i) get]
			}
		} else {
			pack forget $right_top_frame
			$less_more_button configure			\
				-compound right -text [mc "More"]	\
				-image ::ICONS::16::1rightarrow
			$win_obj geometry $INITIAL_WIDTH {} {} {}
		}
	}

	## Entybox event handler for <FocusIn> and <FocusOut>
	 # Change entryboxes background colors
	 # @parm Char type	- Entrybox type
	 #	h  - Hexadecimal
	 #	d  - Decimal
	 #	b  - Binary
	 #	o  - Octal
	 #	c0 - BCD - Low order nibble
	 #	c1 - BCD - High order nibble
	 #	a  - ASCII
	 # @parm Int row	- Row number (0..5)
	 # @parm Bool focused	- 1 == <FocusIn>; 0 == <FocusOut>
	 # @return void
	public method entry_focus {type row focused} {
		if {$focused} {
			set style BaseConverter_Focused_I.TEntry
			set bg {#DDDDFF}
		} else {
			set style BaseConverter_NotFocused.TEntry
			set bg {#FFFFFF}
		}

		foreach w [list						\
				$entry_h($row)		$entry_d($row)	\
				$entry_b($row)		$entry_o($row)	\
			]						\
		{
			$w configure -style $style
		}

		if {$right_rows_created > $row} {
			foreach w [list				\
					$entry_c1($row)		\
					$entry_c0($row)		\
					$entry_a($row)		\
				]				\
			{
				$w configure -style $style
			}

			$entry_t($row) configure -bg $bg
		}

		if {$focused} {
			[subst -nocommands "\$entry_${type}($row)"] configure -style BaseConverter_Focused_D.TEntry
		} else {
			[subst -nocommands "\$entry_${type}($row)"] selection clear
		}

	}


	## Entybox event handler for <Key-Up>, <Key-Down>, <Key-Left>, <Key-Right>, <Key-Tab>,
	 #+ <Key-ISO_Left_Tab>, <Key-Return> and <Key-KP_Enter>
	 # @parm Char type	- Entrybox type
	 #	h  - Hexadecimal
	 #	d  - Decimal
	 #	b  - Binary
	 #	o  - Octal
	 #	c0 - BCD - Low order nibble
	 #	c1 - BCD - High order nibble
	 #	a  - ASCII
	 # @parm Int y		- Row number (0..5)
	 # @parm Char key	- Key pressed
	 #	u - Up
	 #	d - Down
	 #	l - Left
	 #	r - Right
	 #	t - Tab
	 #	s - Shift-Tab
	 #	e - Enter
	 # @return void
	public method entry_key {type y key} {
		set entrybox [subst -nocommands "\$entry_${type}($y)"]
		set insert [$entrybox index insert]
		set max_y $left_rows_created
		incr max_y -1
		switch -- $type {
			{h}  {set x 0}
			{d}  {set x 1}
			{b}  {set x 2}
			{o}  {set x 3}
			{c1} {set x 4}
			{c0} {set x 5}
			{a}  {set x 6}
		}

		$entrybox selection clear
		switch -- $key {
			{u} {	;# Up
				if {!$y} {
					return
				}
				incr y -1
			}
			{d} {	;# Down
				if {$y == $max_y} {
					return
				}
				incr y
			}
			{l} {	;# Left
				if {!$x || $insert} {
					$entrybox icursor [expr {$insert-1}]
					return
				}
				incr x -1
			}
			{r} {	;# Right
				if {($x == 6) || ($insert != [$entrybox index end])} {
					$entrybox icursor [expr {$insert+1}]
					return
				}
				incr x
			}
			{t} {	;# Tab
				if {$x == 6} {
					return
				}
				incr x
			}
			{s} {	;# Shift-Tab
				if {!$x} {
					return
				}
				incr x -1
			}
			{e} {	;# Enter
				if {$y == $max_y} {
					return
				}
				incr y
			}
		}

		if {$x > 3 && $y >= $right_rows_created} {
			return
		}

		set insert [expr {[$entrybox index end] - $insert}]
		switch -- $x {
			{0} {set type h}
			{1} {set type d}
			{2} {set type b}
			{3} {set type o}
			{4} {set type c1}
			{5} {set type c0}
			{6} {set type a}
		}
		set entrybox [subst -nocommands "\$entry_${type}($y)"]
		$entrybox selection range 0 end
		$entrybox icursor [expr {[$entrybox index end] - $insert}]
		focus $entrybox
	}
}

# >>> File inclusion guard
}
# <<< File inclusion guard