This file is indexed.

/usr/share/tcltk/iwidgets4.0.1/scripts/scrolledwidget.itk is in iwidgets4 4.0.1-6.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
#
# Scrolledwidget
# ----------------------------------------------------------------------
# Implements a general purpose base class for scrolled widgets, by
# creating the necessary horizontal and vertical scrollbars and 
# providing protected methods for controlling their display.  The 
# derived class needs to take advantage of the fact that the grid
# is used and the vertical scrollbar is in row 0, column 2 and the
# horizontal scrollbar in row 2, column 0.
#
# ----------------------------------------------------------------------
#  AUTHOR: Mark Ulferts                        mulferts@austin.dsccc.com 
#
#  @(#) $Id: scrolledwidget.itk,v 1.2 2001/08/07 19:56:48 smithc Exp $
# ----------------------------------------------------------------------
#            Copyright (c) 1997 DSC Technologies Corporation
# ======================================================================
# Permission to use, copy, modify, distribute and license this software 
# and its documentation for any purpose, and without fee or written 
# agreement with DSC, is hereby granted, provided that the above copyright 
# notice appears in all copies and that both the copyright notice and 
# warranty disclaimer below appear in supporting documentation, and that 
# the names of DSC Technologies Corporation or DSC Communications 
# Corporation not be used in advertising or publicity pertaining to the 
# software without specific, written prior permission.
# 
# DSC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NON-
# INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND THE
# AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, 
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. IN NO EVENT SHALL 
# DSC BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 
# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION,
# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 
# SOFTWARE.
# ======================================================================

#
# Usual options.
#
itk::usual Scrolledwidget {
    keep -background -borderwidth -cursor -highlightcolor -highlightthickness 
    keep -activebackground -activerelief -jump -troughcolor
    keep -labelfont -foreground
}

# ------------------------------------------------------------------
#                            SCROLLEDWIDGET
# ------------------------------------------------------------------
itcl::class iwidgets::Scrolledwidget {
    inherit iwidgets::Labeledwidget

    constructor {args} {}
    destructor {}

    itk_option define -sbwidth sbWidth Width 15
    itk_option define -scrollmargin scrollMargin ScrollMargin 3 
    itk_option define -vscrollmode vscrollMode VScrollMode static 
    itk_option define -hscrollmode hscrollMode HScrollMode static 
    itk_option define -width width Width 30 
    itk_option define -height height Height 30 

    protected method _scrollWidget {wid first last} 
    protected method _vertScrollbarDisplay {mode} 
    protected method _horizScrollbarDisplay {mode} 
    protected method _configureEvent {}

    protected variable _vmode off            ;# Vertical scroll mode
    protected variable _hmode off            ;# Vertical scroll mode
    protected variable _recheckHoriz 1       ;# Flag to check need for 
                                             ;#  horizontal scrollbar
    protected variable _recheckVert 1        ;# Flag to check need for 
                                             ;#  vertical scrollbar

    protected variable _interior {}
}

#
# Provide a lowercased access method for the Scrolledwidget class.
# 
proc ::iwidgets::scrolledwidget {pathName args} {
    uplevel ::iwidgets::Scrolledwidget $pathName $args
}

#
# Use option database to override default resources of base classes.
#
option add *Scrolledwidget.labelPos n widgetDefault

# ------------------------------------------------------------------
#                        CONSTRUCTOR
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::constructor {args} {

    #
    # Turn off the borderwidth on the hull and save off the 
    # interior for later use.
    #
    component hull configure -borderwidth 0
    set _interior $itk_interior

    #
    # Check if the scrollbars need mapping upon a configure event.
    #
    bind $_interior <Configure> [itcl::code $this _configureEvent]

    #
    # Turn off propagation in the containing shell.
    #
    # Due to a bug in the tk4.2 grid, we have to check the 
    # propagation before setting it.  Setting it to the same
    # value it already is will cause it to toggle.
    #
    if {[grid propagate $_interior]} {
	grid propagate $_interior no
    }
	
    # 
    # Create the vertical scroll bar
    #
    itk_component add vertsb {
	scrollbar $itk_interior.vertsb -orient vertical 
    } {
	usual
	keep -borderwidth -elementborderwidth -jump -relief 
	rename -highlightbackground -background background Background
    }

    #
    # Create the horizontal scrollbar
    #
    itk_component add horizsb {
	scrollbar $itk_interior.horizsb -orient horizontal 
    } {
	usual
	keep -borderwidth -elementborderwidth -jump -relief 
	rename -highlightbackground -background background Background
    }
    
    #
    # Initialize the widget based on the command line options.
    #
    eval itk_initialize $args
}

# ------------------------------------------------------------------
#                           DESTURCTOR
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::destructor {} {
}

# ------------------------------------------------------------------
#                             OPTIONS
# ------------------------------------------------------------------

# ------------------------------------------------------------------
# OPTION: -sbwidth
#
# Set the width of the scrollbars.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::sbwidth {
    $itk_component(vertsb) configure -width $itk_option(-sbwidth)
    $itk_component(horizsb) configure -width $itk_option(-sbwidth)
}

# ------------------------------------------------------------------
# OPTION: -scrollmargin
#
# Set the distance between the scrollbars and the list box.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::scrollmargin {
    set pixels [winfo pixels $_interior	$itk_option(-scrollmargin)]
    	
    if {$_hmode == "on"} {
	grid rowconfigure $_interior 1 -minsize $pixels
    }
	
    if {$_vmode == "on"} {
	grid columnconfigure $_interior 1 -minsize $pixels
    }
}

# ------------------------------------------------------------------
# OPTION: -vscrollmode
#
# Enable/disable display and mode of veritcal scrollbars.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::vscrollmode {
    switch $itk_option(-vscrollmode) {
    	static {
    	    _vertScrollbarDisplay on
    	}
	
    	dynamic -
    	none {
    	    _vertScrollbarDisplay off
    	}
	
    	default {
    	    error "bad vscrollmode option\
		    \"$itk_option(-vscrollmode)\": should be\
		    static, dynamic, or none"
    	}
    }
}

# ------------------------------------------------------------------
# OPTION: -hscrollmode
#
# Enable/disable display and mode of horizontal scrollbars.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::hscrollmode {
    switch $itk_option(-hscrollmode) {
    	static {
    	    _horizScrollbarDisplay on
    	}
	
    	dynamic -
    	none {
    	    _horizScrollbarDisplay off
    	}
	
    	default {
    	    error "bad hscrollmode option\
		    \"$itk_option(-hscrollmode)\": should be\
		    static, dynamic, or none"
    	}
    }
}

# ------------------------------------------------------------------
# OPTION: -width
#
# Specifies the width of the scrolled widget.  The value may be 
# specified in any of the forms acceptable to Tk_GetPixels.  
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::width {
    $_interior configure -width \
	[winfo pixels $_interior $itk_option(-width)] 
}

# ------------------------------------------------------------------
# OPTION: -height
#
# Specifies the height of the scrolled widget.  The value may be 
# specified in any of the forms acceptable to Tk_GetPixels.  
# ------------------------------------------------------------------
itcl::configbody iwidgets::Scrolledwidget::height {
    $_interior configure -height \
	[winfo pixels $_interior $itk_option(-height)] 
}

# ------------------------------------------------------------------
#                            METHODS
# ------------------------------------------------------------------

# ------------------------------------------------------------------
# PROTECTED METHOD: _vertScrollbarDisplay mode
#
# Displays the vertical scrollbar based on the input mode.
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::_vertScrollbarDisplay {mode} {
    switch $mode  {
	on {
	    set _vmode on
	    
	    grid columnconfigure $_interior 1 -minsize \
		    [winfo pixels $_interior $itk_option(-scrollmargin)]
	    grid $itk_component(vertsb) -row 0 -column 2 -sticky ns
	}
	
	off {
	    set _vmode off
	    
	    grid columnconfigure $_interior 1 -minsize 0
	    grid forget $itk_component(vertsb) 
	}
	
	default {
	    error "invalid argument \"$mode\": should be on or off"
	}
    }
}

# ------------------------------------------------------------------
# PROTECTED METHOD: _horizScrollbarDisplay mode
#
# Displays the horizontal scrollbar based on the input mode.
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::_horizScrollbarDisplay {mode} {
    switch $mode  {
	on {
	    set _hmode on
	    
	    grid rowconfigure $_interior 1 -minsize \
		    [winfo pixels $_interior $itk_option(-scrollmargin)]
	    grid $itk_component(horizsb) -row 2 -column 0 -sticky ew
	}
	
	off {
	    set _hmode off
	    
	    grid rowconfigure $_interior 1 -minsize 0
	    grid forget $itk_component(horizsb) 
	}
	
	default {
	    error "invalid argument \"$mode\": should be on or off"
	}
    }
}

# ------------------------------------------------------------------
# PROTECTED METHOD: _scrollWidget wid first last
#
# Performs scrolling and display of scrollbars based on the total 
# and maximum frame size as well as the current -vscrollmode and 
# -hscrollmode settings.  Parameters are automatic scroll parameters.
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::_scrollWidget {wid first last} {
    $wid set $first $last

    if {$wid == $itk_component(vertsb)} {
	if {$itk_option(-vscrollmode) == "dynamic"} {
	    if {($_recheckVert != 1) && ($_vmode == "on")} {
		return
	    } else {
		set _recheckVert 0
	    }

	    if {($first == 0) && ($last == 1)} {
		if {$_vmode != "off"} {
		    _vertScrollbarDisplay off
		}
		
	    } else {
		if {$_vmode != "on"} {
		    _vertScrollbarDisplay on
		}
	    }
	}
	
    } elseif {$wid == $itk_component(horizsb)} {
	if {$itk_option(-hscrollmode) == "dynamic"} {
	    if {($_recheckHoriz != 1) && ($_hmode == "on")} {
		return
	    } else {
		set _recheckHoriz 0
	    }

	    if {($first == 0) && ($last == 1)} {
		if {$_hmode != "off"} {
		    _horizScrollbarDisplay off
		}
		
	    } else {
		if {$_hmode != "on"} {
		    _horizScrollbarDisplay on
		}
	    }
	}
    }
}

# ------------------------------------------------------------------
# PROTECTED METHOD: _configureEvent
#
# Resets the recheck flags which determine if we'll try and map
# the scrollbars in dynamic mode.  
# ------------------------------------------------------------------
itcl::body iwidgets::Scrolledwidget::_configureEvent {} {
    update idletasks
    set _recheckVert 1
    set _recheckHoriz 1
}