This file is indexed.

/usr/share/tcltk/iwidgets4.0.1/scripts/shell.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
# Shell
# ----------------------------------------------------------------------
# This class is implements a shell which is a top level widget
# giving a childsite and providing activate, deactivate, and center 
# methods.
#    
# ----------------------------------------------------------------------
#  AUTHOR: Mark L. Ulferts              EMAIL: mulferts@austin.dsccc.com
#          Kris Raney                   EMAIL: kraney@spd.dsccc.com
#
#  @(#) $Id: shell.itk,v 1.7 2002/02/25 06:43:26 mgbacke Exp $
# ----------------------------------------------------------------------
#            Copyright (c) 1996 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 Shell {
    keep -background -cursor -modality 
}
 
# ------------------------------------------------------------------
#                            SHELL
# ------------------------------------------------------------------
itcl::class iwidgets::Shell {
    inherit itk::Toplevel
 
    constructor {args} {}
 
    itk_option define -master master Window "" 
    itk_option define -modality modality Modality none
    itk_option define -padx padX Pad 0
    itk_option define -pady padY Pad 0
    itk_option define -width width Width 0
    itk_option define -height height Height 0
 
    public method childsite {}
    public method activate {}
    public method deactivate {args}
    public method center {{widget {}}}
 
    private variable _result {}     ;# Resultant value for modal activation.
    private variable _busied {}     ;# List of busied top level widgets.

    common grabstack {}
    common _wait
}

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

# ------------------------------------------------------------------
#                        CONSTRUCTOR
# ------------------------------------------------------------------
itcl::body iwidgets::Shell::constructor {args} {
    itk_option add hull.width hull.height

    #
    # Maintain a withdrawn state until activated.  
    #
    wm withdraw $itk_component(hull)
    
    #
    # Create the user child site
    #
    itk_component add -protected shellchildsite {
        frame $itk_interior.shellchildsite
    } 
    pack $itk_component(shellchildsite) -fill both -expand yes

    #
    # Set the itk_interior variable to be the childsite for derived 
    # classes.
    #
    set itk_interior $itk_component(shellchildsite)

    #
    # Bind the window manager delete protocol to deactivation of the 
    # widget.  This can be overridden by the user via the execution 
    # of a similar command outside the class.
    #
    wm protocol $itk_component(hull) WM_DELETE_WINDOW [itcl::code $this deactivate]
    
    #
    # Initialize the widget based on the command line options.
    #
    eval itk_initialize $args
}

# ------------------------------------------------------------------
#                             OPTIONS
# ------------------------------------------------------------------
 
# ------------------------------------------------------------------
# OPTION: -master
#
# Specifies the master window for the shell.  The window manager is
# informed that the shell is a transient window whose master is
# -masterwindow.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::master {}

# ------------------------------------------------------------------
# OPTION: -modality
#
# Specify the modality of the dialog.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::modality {
    switch $itk_option(-modality) {
        none -
        application -
        global {
        }
        
        default {
            error "bad modality option \"$itk_option(-modality)\":\
                    should be none, application, or global"
        }
    }
}
 
# ------------------------------------------------------------------
# OPTION: -padx
#
# Specifies a padding distance for the childsite in the X-direction.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::padx {
    pack config $itk_component(shellchildsite) -padx $itk_option(-padx)
}
 
# ------------------------------------------------------------------
# OPTION: -pady
#
# Specifies a padding distance for the childsite in the Y-direction.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::pady {
    pack config $itk_component(shellchildsite) -pady $itk_option(-pady)
}

# ------------------------------------------------------------------
# OPTION: -width
#
# Specifies the width of the shell.  The value may be specified in 
# any of the forms acceptable to Tk_GetPixels.  A value of zero 
# causes the width to be adjusted to the required value based on 
# the size requests of the components placed in the childsite.  
# Otherwise, the width is fixed.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::width {
    #
    # The width option was added to the hull in the constructor.
    # So, any width value given is passed automatically to the
    # hull.  All we have to do is play with the propagation.
    #
    if {$itk_option(-width) != 0} {
    pack propagate $itk_component(hull) no
    } else {
    pack propagate $itk_component(hull) yes
    }
}

# ------------------------------------------------------------------
# OPTION: -height
#
# Specifies the height of the shell.  The value may be specified in 
# any of the forms acceptable to Tk_GetPixels.  A value of zero 
# causes the height to be adjusted to the required value based on 
# the size requests of the components placed in the childsite.
# Otherwise, the height is fixed.
# ------------------------------------------------------------------
itcl::configbody iwidgets::Shell::height {
    #
    # The height option was added to the hull in the constructor.
    # So, any height value given is passed automatically to the
    # hull.  All we have to do is play with the propagation.
    #
    if {$itk_option(-height) != 0} {
    pack propagate $itk_component(hull) no
    } else {
    pack propagate $itk_component(hull) yes
    }
}

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

# ------------------------------------------------------------------
# METHOD: childsite
#
# Return the pathname of the user accessible area.
# ------------------------------------------------------------------
itcl::body iwidgets::Shell::childsite {} {
    return $itk_component(shellchildsite)
}
 
# ------------------------------------------------------------------
# METHOD: activate
#
# Display the dialog and wait based on the modality.  For application
# and global modal activations, perform a grab operation, and wait
# for the result.  The result may be returned via an argument to the
# "deactivate" method.
# ------------------------------------------------------------------
itcl::body iwidgets::Shell::activate {} {

    if {[winfo ismapped $itk_component(hull)]} {
        raise $itk_component(hull)
    return
    }
    
    if {($itk_option(-master) != {}) && \
        [winfo exists $itk_option(-master)]} {
    wm transient $itk_component(hull) $itk_option(-master)
    } 

    set _wait($this) 0
    raise $itk_component(hull)
    wm deiconify $itk_component(hull)
    tkwait visibility $itk_component(hull)

    # Need to flush the event loop.  This line added as a result of
    # SF ticket #227885.
    update idletasks
    
    if {$itk_option(-modality) == "application"} {
        if {$grabstack != {}} {
            grab release [lindex $grabstack end]
        }

    set err 1
    while {$err == 1} {
        set err [catch [list grab $itk_component(hull)]]
        if {$err == 1} {
        after 1000
        }
    }

        lappend grabstack [list grab $itk_component(hull)]
        
        tkwait variable [itcl::scope _wait($this)]
        return $_result
        
    } elseif {$itk_option(-modality) == "global" }  {
        if {$grabstack != {}} {
            grab release [lindex $grabstack end]
        }

    set err 1
    while {$err == 1} {
        set err [catch [list grab -global $itk_component(hull)]]
        if {$err == 1} {
        after 1000
        }
    }

        lappend grabstack [list grab -global $itk_component(hull)]
 
        tkwait variable [itcl::scope _wait($this)]
        return $_result
    }
}
 
# ------------------------------------------------------------------
# METHOD: deactivate
#
# Deactivate the display of the dialog.  The method takes an optional
# argument to passed to the "activate" method which returns the value.
# This is only effective for application and global modal dialogs.
# ------------------------------------------------------------------
itcl::body iwidgets::Shell::deactivate {args} {

    if {! [winfo ismapped $itk_component(hull)]} {
        return
    }
    
    if {$itk_option(-modality) == "none"} {
        wm withdraw $itk_component(hull)
    } elseif {$itk_option(-modality) == "application"} {
        grab release $itk_component(hull)
        if {$grabstack != {}} {
            if {[set grabstack [lreplace $grabstack end end]] != {}} {
                eval [lindex $grabstack end]
            }
        }
 
        wm withdraw $itk_component(hull)
        
    } elseif {$itk_option(-modality) == "global"} {
        grab release $itk_component(hull)
        if {$grabstack != {}} {
            if {[set grabstack [lreplace $grabstack end end]] != {}} {
                eval [lindex $grabstack end]
            }
        }
 
        wm withdraw $itk_component(hull)
    }
    
    if {[llength $args]} {
        set _result $args
    } else {
        set _result {}
    }
    
    set _wait($this) 1
    return
}
 
# ------------------------------------------------------------------
# METHOD: center
#
# Centers the dialog with respect to another widget or the screen
# as a whole.
# ------------------------------------------------------------------
itcl::body iwidgets::Shell::center {{widget {}}} {
    update idletasks
 
    set hull $itk_component(hull)
    set w [winfo width $hull]
    set h [winfo height $hull]
    set sh [winfo screenheight $hull]     ;# display screen's height/width
    set sw [winfo screenwidth $hull]
 
    #
    # User can request it centered with respect to root by passing in '{}'
    #
    if { $widget == "" } {
        set reqX [expr {($sw-$w)/2}]
        set reqY [expr {($sh-$h)/2}]
    } else {
        set wfudge 5      ;# wm width fudge factor
        set hfudge 20     ;# wm height fudge factor
        set widgetW [winfo width $widget]
        set widgetH [winfo height $widget]
        set reqX [expr {[winfo rootx $widget]+($widgetW-($widgetW/2))-($w/2)}]
        set reqY [expr {[winfo rooty $widget]+($widgetH-($widgetH/2))-($h/2)}]
 
        #
        # Adjust for errors - if too long or too tall
        #
        if { ($reqX+$w+$wfudge) > $sw } { set reqX [expr {$sw-$w-$wfudge}] }
        if { $reqX < $wfudge } { set reqX $wfudge }
        if { ($reqY+$h+$hfudge) > $sh } { set reqY [expr {$sh-$h-$hfudge}] }
        if { $reqY < $hfudge } { set reqY $hfudge }
    } 
 
    wm geometry $hull +$reqX+$reqY
}