1 | # tk.tcl -- |
---|
2 | # |
---|
3 | # Initialization script normally executed in the interpreter for each |
---|
4 | # Tk-based application. Arranges class bindings for widgets. |
---|
5 | # |
---|
6 | # RCS: @(#) $Id: tk.tcl,v 1.46.2.1 2003/10/28 15:59:34 dkf Exp $ |
---|
7 | # |
---|
8 | # Copyright (c) 1992-1994 The Regents of the University of California. |
---|
9 | # Copyright (c) 1994-1996 Sun Microsystems, Inc. |
---|
10 | # Copyright (c) 1998-2000 Ajuba Solutions. |
---|
11 | # |
---|
12 | # See the file "license.terms" for information on usage and redistribution |
---|
13 | # of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
---|
14 | |
---|
15 | # Insist on running with compatible versions of Tcl and Tk. |
---|
16 | package require -exact Tk 8.4 |
---|
17 | package require -exact Tcl 8.4 |
---|
18 | |
---|
19 | # Create a ::tk namespace |
---|
20 | namespace eval ::tk { |
---|
21 | # Set up the msgcat commands |
---|
22 | namespace eval msgcat { |
---|
23 | namespace export mc mcmax |
---|
24 | if {[interp issafe] || [catch {package require msgcat}]} { |
---|
25 | # The msgcat package is not available. Supply our own |
---|
26 | # minimal replacement. |
---|
27 | proc mc {src args} { |
---|
28 | return [eval [list format $src] $args] |
---|
29 | } |
---|
30 | proc mcmax {args} { |
---|
31 | set max 0 |
---|
32 | foreach string $args { |
---|
33 | set len [string length $string] |
---|
34 | if {$len>$max} { |
---|
35 | set max $len |
---|
36 | } |
---|
37 | } |
---|
38 | return $max |
---|
39 | } |
---|
40 | } else { |
---|
41 | # Get the commands from the msgcat package that Tk uses. |
---|
42 | namespace import ::msgcat::mc |
---|
43 | namespace import ::msgcat::mcmax |
---|
44 | ::msgcat::mcload [file join $::tk_library msgs] |
---|
45 | } |
---|
46 | } |
---|
47 | namespace import ::tk::msgcat::* |
---|
48 | } |
---|
49 | |
---|
50 | # Add Tk's directory to the end of the auto-load search path, if it |
---|
51 | # isn't already on the path: |
---|
52 | |
---|
53 | if {[info exists ::auto_path] && [string compare {} $::tk_library] && \ |
---|
54 | [lsearch -exact $::auto_path $::tk_library] < 0} { |
---|
55 | lappend ::auto_path $::tk_library |
---|
56 | } |
---|
57 | |
---|
58 | # Turn off strict Motif look and feel as a default. |
---|
59 | |
---|
60 | set ::tk_strictMotif 0 |
---|
61 | |
---|
62 | # Turn on useinputmethods (X Input Methods) by default. |
---|
63 | # We catch this because safe interpreters may not allow the call. |
---|
64 | |
---|
65 | catch {tk useinputmethods 1} |
---|
66 | |
---|
67 | # ::tk::PlaceWindow -- |
---|
68 | # place a toplevel at a particular position |
---|
69 | # Arguments: |
---|
70 | # toplevel name of toplevel window |
---|
71 | # ?placement? pointer ?center? ; places $w centered on the pointer |
---|
72 | # widget widgetPath ; centers $w over widget_name |
---|
73 | # defaults to placing toplevel in the middle of the screen |
---|
74 | # ?anchor? center or widgetPath |
---|
75 | # Results: |
---|
76 | # Returns nothing |
---|
77 | # |
---|
78 | proc ::tk::PlaceWindow {w {place ""} {anchor ""}} { |
---|
79 | wm withdraw $w |
---|
80 | update idletasks |
---|
81 | set checkBounds 1 |
---|
82 | if {[string equal $place ""]} { |
---|
83 | set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}] |
---|
84 | set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}] |
---|
85 | set checkBounds 0 |
---|
86 | } elseif {[string equal -len [string length $place] $place "pointer"]} { |
---|
87 | ## place at POINTER (centered if $anchor == center) |
---|
88 | if {[string equal -len [string length $anchor] $anchor "center"]} { |
---|
89 | set x [expr {[winfo pointerx $w]-[winfo reqwidth $w]/2}] |
---|
90 | set y [expr {[winfo pointery $w]-[winfo reqheight $w]/2}] |
---|
91 | } else { |
---|
92 | set x [winfo pointerx $w] |
---|
93 | set y [winfo pointery $w] |
---|
94 | } |
---|
95 | } elseif {[string equal -len [string length $place] $place "widget"] && \ |
---|
96 | [winfo exists $anchor] && [winfo ismapped $anchor]} { |
---|
97 | ## center about WIDGET $anchor, widget must be mapped |
---|
98 | set x [expr {[winfo rootx $anchor] + \ |
---|
99 | ([winfo width $anchor]-[winfo reqwidth $w])/2}] |
---|
100 | set y [expr {[winfo rooty $anchor] + \ |
---|
101 | ([winfo height $anchor]-[winfo reqheight $w])/2}] |
---|
102 | } else { |
---|
103 | set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}] |
---|
104 | set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}] |
---|
105 | set checkBounds 0 |
---|
106 | } |
---|
107 | if {$checkBounds} { |
---|
108 | if {$x < 0} { |
---|
109 | set x 0 |
---|
110 | } elseif {$x > ([winfo screenwidth $w]-[winfo reqwidth $w])} { |
---|
111 | set x [expr {[winfo screenwidth $w]-[winfo reqwidth $w]}] |
---|
112 | } |
---|
113 | if {$y < 0} { |
---|
114 | set y 0 |
---|
115 | } elseif {$y > ([winfo screenheight $w]-[winfo reqheight $w])} { |
---|
116 | set y [expr {[winfo screenheight $w]-[winfo reqheight $w]}] |
---|
117 | } |
---|
118 | if {[tk windowingsystem] eq "macintosh" \ |
---|
119 | || [tk windowingsystem] eq "aqua"} { |
---|
120 | # Avoid the native menu bar which sits on top of everything. |
---|
121 | if {$y < 20} { set y 20 } |
---|
122 | } |
---|
123 | } |
---|
124 | wm geometry $w +$x+$y |
---|
125 | wm deiconify $w |
---|
126 | } |
---|
127 | |
---|
128 | # ::tk::SetFocusGrab -- |
---|
129 | # swap out current focus and grab temporarily (for dialogs) |
---|
130 | # Arguments: |
---|
131 | # grab new window to grab |
---|
132 | # focus window to give focus to |
---|
133 | # Results: |
---|
134 | # Returns nothing |
---|
135 | # |
---|
136 | proc ::tk::SetFocusGrab {grab {focus {}}} { |
---|
137 | set index "$grab,$focus" |
---|
138 | upvar ::tk::FocusGrab($index) data |
---|
139 | |
---|
140 | lappend data [focus] |
---|
141 | set oldGrab [grab current $grab] |
---|
142 | lappend data $oldGrab |
---|
143 | if {[winfo exists $oldGrab]} { |
---|
144 | lappend data [grab status $oldGrab] |
---|
145 | } |
---|
146 | # The "grab" command will fail if another application |
---|
147 | # already holds the grab. So catch it. |
---|
148 | catch {grab $grab} |
---|
149 | if {[winfo exists $focus]} { |
---|
150 | focus $focus |
---|
151 | } |
---|
152 | } |
---|
153 | |
---|
154 | # ::tk::RestoreFocusGrab -- |
---|
155 | # restore old focus and grab (for dialogs) |
---|
156 | # Arguments: |
---|
157 | # grab window that had taken grab |
---|
158 | # focus window that had taken focus |
---|
159 | # destroy destroy|withdraw - how to handle the old grabbed window |
---|
160 | # Results: |
---|
161 | # Returns nothing |
---|
162 | # |
---|
163 | proc ::tk::RestoreFocusGrab {grab focus {destroy destroy}} { |
---|
164 | set index "$grab,$focus" |
---|
165 | if {[info exists ::tk::FocusGrab($index)]} { |
---|
166 | foreach {oldFocus oldGrab oldStatus} $::tk::FocusGrab($index) { break } |
---|
167 | unset ::tk::FocusGrab($index) |
---|
168 | } else { |
---|
169 | set oldGrab "" |
---|
170 | } |
---|
171 | |
---|
172 | catch {focus $oldFocus} |
---|
173 | grab release $grab |
---|
174 | if {[string equal $destroy "withdraw"]} { |
---|
175 | wm withdraw $grab |
---|
176 | } else { |
---|
177 | destroy $grab |
---|
178 | } |
---|
179 | if {[winfo exists $oldGrab] && [winfo ismapped $oldGrab]} { |
---|
180 | if {[string equal $oldStatus "global"]} { |
---|
181 | grab -global $oldGrab |
---|
182 | } else { |
---|
183 | grab $oldGrab |
---|
184 | } |
---|
185 | } |
---|
186 | } |
---|
187 | |
---|
188 | # ::tk::GetSelection -- |
---|
189 | # This tries to obtain the default selection. On Unix, we first try |
---|
190 | # and get a UTF8_STRING, a type supported by modern Unix apps for |
---|
191 | # passing Unicode data safely. We fall back on the default STRING |
---|
192 | # type otherwise. On Windows, only the STRING type is necessary. |
---|
193 | # Arguments: |
---|
194 | # w The widget for which the selection will be retrieved. |
---|
195 | # Important for the -displayof property. |
---|
196 | # sel The source of the selection (PRIMARY or CLIPBOARD) |
---|
197 | # Results: |
---|
198 | # Returns the selection, or an error if none could be found |
---|
199 | # |
---|
200 | if {[string equal $tcl_platform(platform) "unix"]} { |
---|
201 | proc ::tk::GetSelection {w {sel PRIMARY}} { |
---|
202 | if {[catch {selection get -displayof $w -selection $sel \ |
---|
203 | -type UTF8_STRING} txt] \ |
---|
204 | && [catch {selection get -displayof $w -selection $sel} txt]} { |
---|
205 | return -code error "could not find default selection" |
---|
206 | } else { |
---|
207 | return $txt |
---|
208 | } |
---|
209 | } |
---|
210 | } else { |
---|
211 | proc ::tk::GetSelection {w {sel PRIMARY}} { |
---|
212 | if {[catch {selection get -displayof $w -selection $sel} txt]} { |
---|
213 | return -code error "could not find default selection" |
---|
214 | } else { |
---|
215 | return $txt |
---|
216 | } |
---|
217 | } |
---|
218 | } |
---|
219 | |
---|
220 | # ::tk::ScreenChanged -- |
---|
221 | # This procedure is invoked by the binding mechanism whenever the |
---|
222 | # "current" screen is changing. The procedure does two things. |
---|
223 | # First, it uses "upvar" to make variable "::tk::Priv" point at an |
---|
224 | # array variable that holds state for the current display. Second, |
---|
225 | # it initializes the array if it didn't already exist. |
---|
226 | # |
---|
227 | # Arguments: |
---|
228 | # screen - The name of the new screen. |
---|
229 | |
---|
230 | proc ::tk::ScreenChanged screen { |
---|
231 | set x [string last . $screen] |
---|
232 | if {$x > 0} { |
---|
233 | set disp [string range $screen 0 [expr {$x - 1}]] |
---|
234 | } else { |
---|
235 | set disp $screen |
---|
236 | } |
---|
237 | |
---|
238 | uplevel #0 upvar #0 ::tk::Priv.$disp ::tk::Priv |
---|
239 | variable ::tk::Priv |
---|
240 | global tcl_platform |
---|
241 | |
---|
242 | if {[info exists Priv]} { |
---|
243 | set Priv(screen) $screen |
---|
244 | return |
---|
245 | } |
---|
246 | array set Priv { |
---|
247 | activeMenu {} |
---|
248 | activeItem {} |
---|
249 | afterId {} |
---|
250 | buttons 0 |
---|
251 | buttonWindow {} |
---|
252 | dragging 0 |
---|
253 | focus {} |
---|
254 | grab {} |
---|
255 | initPos {} |
---|
256 | inMenubutton {} |
---|
257 | listboxPrev {} |
---|
258 | menuBar {} |
---|
259 | mouseMoved 0 |
---|
260 | oldGrab {} |
---|
261 | popup {} |
---|
262 | postedMb {} |
---|
263 | pressX 0 |
---|
264 | pressY 0 |
---|
265 | prevPos 0 |
---|
266 | selectMode char |
---|
267 | } |
---|
268 | set Priv(screen) $screen |
---|
269 | set Priv(tearoff) [string equal [tk windowingsystem] "x11"] |
---|
270 | set Priv(window) {} |
---|
271 | } |
---|
272 | |
---|
273 | # Do initial setup for Priv, so that it is always bound to something |
---|
274 | # (otherwise, if someone references it, it may get set to a non-upvar-ed |
---|
275 | # value, which will cause trouble later). |
---|
276 | |
---|
277 | tk::ScreenChanged [winfo screen .] |
---|
278 | |
---|
279 | # ::tk::EventMotifBindings -- |
---|
280 | # This procedure is invoked as a trace whenever ::tk_strictMotif is |
---|
281 | # changed. It is used to turn on or turn off the motif virtual |
---|
282 | # bindings. |
---|
283 | # |
---|
284 | # Arguments: |
---|
285 | # n1 - the name of the variable being changed ("::tk_strictMotif"). |
---|
286 | |
---|
287 | proc ::tk::EventMotifBindings {n1 dummy dummy} { |
---|
288 | upvar $n1 name |
---|
289 | |
---|
290 | if {$name} { |
---|
291 | set op delete |
---|
292 | } else { |
---|
293 | set op add |
---|
294 | } |
---|
295 | |
---|
296 | event $op <<Cut>> <Control-Key-w> |
---|
297 | event $op <<Copy>> <Meta-Key-w> |
---|
298 | event $op <<Paste>> <Control-Key-y> |
---|
299 | event $op <<Undo>> <Control-underscore> |
---|
300 | } |
---|
301 | |
---|
302 | #---------------------------------------------------------------------- |
---|
303 | # Define common dialogs on platforms where they are not implemented |
---|
304 | # using compiled code. |
---|
305 | #---------------------------------------------------------------------- |
---|
306 | |
---|
307 | if {[string equal [info commands tk_chooseColor] ""]} { |
---|
308 | proc ::tk_chooseColor {args} { |
---|
309 | return [eval tk::dialog::color:: $args] |
---|
310 | } |
---|
311 | } |
---|
312 | if {[string equal [info commands tk_getOpenFile] ""]} { |
---|
313 | proc ::tk_getOpenFile {args} { |
---|
314 | if {$::tk_strictMotif} { |
---|
315 | return [eval tk::MotifFDialog open $args] |
---|
316 | } else { |
---|
317 | return [eval ::tk::dialog::file:: open $args] |
---|
318 | } |
---|
319 | } |
---|
320 | } |
---|
321 | if {[string equal [info commands tk_getSaveFile] ""]} { |
---|
322 | proc ::tk_getSaveFile {args} { |
---|
323 | if {$::tk_strictMotif} { |
---|
324 | return [eval tk::MotifFDialog save $args] |
---|
325 | } else { |
---|
326 | return [eval ::tk::dialog::file:: save $args] |
---|
327 | } |
---|
328 | } |
---|
329 | } |
---|
330 | if {[string equal [info commands tk_messageBox] ""]} { |
---|
331 | proc ::tk_messageBox {args} { |
---|
332 | return [eval tk::MessageBox $args] |
---|
333 | } |
---|
334 | } |
---|
335 | if {[string equal [info command tk_chooseDirectory] ""]} { |
---|
336 | proc ::tk_chooseDirectory {args} { |
---|
337 | return [eval ::tk::dialog::file::chooseDir:: $args] |
---|
338 | } |
---|
339 | } |
---|
340 | |
---|
341 | #---------------------------------------------------------------------- |
---|
342 | # Define the set of common virtual events. |
---|
343 | #---------------------------------------------------------------------- |
---|
344 | |
---|
345 | switch [tk windowingsystem] { |
---|
346 | "x11" { |
---|
347 | event add <<Cut>> <Control-Key-x> <Key-F20> |
---|
348 | event add <<Copy>> <Control-Key-c> <Key-F16> |
---|
349 | event add <<Paste>> <Control-Key-v> <Key-F18> |
---|
350 | event add <<PasteSelection>> <ButtonRelease-2> |
---|
351 | event add <<Undo>> <Control-Key-z> |
---|
352 | event add <<Redo>> <Control-Key-Z> |
---|
353 | # Some OS's define a goofy (as in, not <Shift-Tab>) keysym |
---|
354 | # that is returned when the user presses <Shift-Tab>. In order for |
---|
355 | # tab traversal to work, we have to add these keysyms to the |
---|
356 | # PrevWindow event. |
---|
357 | # We use catch just in case the keysym isn't recognized. |
---|
358 | # This is needed for XFree86 systems |
---|
359 | catch { event add <<PrevWindow>> <ISO_Left_Tab> } |
---|
360 | # This seems to be correct on *some* HP systems. |
---|
361 | catch { event add <<PrevWindow>> <hpBackTab> } |
---|
362 | |
---|
363 | trace variable ::tk_strictMotif w ::tk::EventMotifBindings |
---|
364 | set ::tk_strictMotif $::tk_strictMotif |
---|
365 | } |
---|
366 | "win32" { |
---|
367 | event add <<Cut>> <Control-Key-x> <Shift-Key-Delete> |
---|
368 | event add <<Copy>> <Control-Key-c> <Control-Key-Insert> |
---|
369 | event add <<Paste>> <Control-Key-v> <Shift-Key-Insert> |
---|
370 | event add <<PasteSelection>> <ButtonRelease-2> |
---|
371 | event add <<Undo>> <Control-Key-z> |
---|
372 | event add <<Redo>> <Control-Key-y> |
---|
373 | } |
---|
374 | "aqua" { |
---|
375 | event add <<Cut>> <Command-Key-x> <Key-F2> |
---|
376 | event add <<Copy>> <Command-Key-c> <Key-F3> |
---|
377 | event add <<Paste>> <Command-Key-v> <Key-F4> |
---|
378 | event add <<PasteSelection>> <ButtonRelease-2> |
---|
379 | event add <<Clear>> <Clear> |
---|
380 | event add <<Undo>> <Command-Key-z> |
---|
381 | event add <<Redo>> <Command-Key-y> |
---|
382 | } |
---|
383 | "classic" { |
---|
384 | event add <<Cut>> <Control-Key-x> <Key-F2> |
---|
385 | event add <<Copy>> <Control-Key-c> <Key-F3> |
---|
386 | event add <<Paste>> <Control-Key-v> <Key-F4> |
---|
387 | event add <<PasteSelection>> <ButtonRelease-2> |
---|
388 | event add <<Clear>> <Clear> |
---|
389 | event add <<Undo>> <Control-Key-z> <Key-F1> |
---|
390 | event add <<Redo>> <Control-Key-Z> |
---|
391 | } |
---|
392 | } |
---|
393 | # ---------------------------------------------------------------------- |
---|
394 | # Read in files that define all of the class bindings. |
---|
395 | # ---------------------------------------------------------------------- |
---|
396 | |
---|
397 | if {$::tk_library ne ""} { |
---|
398 | if {[string equal $tcl_platform(platform) "macintosh"]} { |
---|
399 | proc ::tk::SourceLibFile {file} { |
---|
400 | if {[catch { |
---|
401 | namespace eval :: \ |
---|
402 | [list source [file join $::tk_library $file.tcl]] |
---|
403 | }]} { |
---|
404 | namespace eval :: [list source -rsrc $file] |
---|
405 | } |
---|
406 | } |
---|
407 | } else { |
---|
408 | proc ::tk::SourceLibFile {file} { |
---|
409 | namespace eval :: [list source [file join $::tk_library $file.tcl]] |
---|
410 | } |
---|
411 | } |
---|
412 | namespace eval ::tk { |
---|
413 | SourceLibFile button |
---|
414 | SourceLibFile entry |
---|
415 | SourceLibFile listbox |
---|
416 | SourceLibFile menu |
---|
417 | SourceLibFile panedwindow |
---|
418 | SourceLibFile scale |
---|
419 | SourceLibFile scrlbar |
---|
420 | SourceLibFile spinbox |
---|
421 | SourceLibFile text |
---|
422 | } |
---|
423 | } |
---|
424 | # ---------------------------------------------------------------------- |
---|
425 | # Default bindings for keyboard traversal. |
---|
426 | # ---------------------------------------------------------------------- |
---|
427 | |
---|
428 | event add <<PrevWindow>> <Shift-Tab> |
---|
429 | bind all <Tab> {tk::TabToWindow [tk_focusNext %W]} |
---|
430 | bind all <<PrevWindow>> {tk::TabToWindow [tk_focusPrev %W]} |
---|
431 | |
---|
432 | # ::tk::CancelRepeat -- |
---|
433 | # This procedure is invoked to cancel an auto-repeat action described |
---|
434 | # by ::tk::Priv(afterId). It's used by several widgets to auto-scroll |
---|
435 | # the widget when the mouse is dragged out of the widget with a |
---|
436 | # button pressed. |
---|
437 | # |
---|
438 | # Arguments: |
---|
439 | # None. |
---|
440 | |
---|
441 | proc ::tk::CancelRepeat {} { |
---|
442 | variable ::tk::Priv |
---|
443 | after cancel $Priv(afterId) |
---|
444 | set Priv(afterId) {} |
---|
445 | } |
---|
446 | |
---|
447 | # ::tk::TabToWindow -- |
---|
448 | # This procedure moves the focus to the given widget. If the widget |
---|
449 | # is an entry or a spinbox, it selects the entire contents of the widget. |
---|
450 | # |
---|
451 | # Arguments: |
---|
452 | # w - Window to which focus should be set. |
---|
453 | |
---|
454 | proc ::tk::TabToWindow {w} { |
---|
455 | if {[string equal [winfo class $w] Entry] \ |
---|
456 | || [string equal [winfo class $w] Spinbox]} { |
---|
457 | $w selection range 0 end |
---|
458 | $w icursor end |
---|
459 | } |
---|
460 | focus $w |
---|
461 | } |
---|
462 | |
---|
463 | # ::tk::UnderlineAmpersand -- |
---|
464 | # This procedure takes some text with ampersand and returns |
---|
465 | # text w/o ampersand and position of the ampersand. |
---|
466 | # Double ampersands are converted to single ones. |
---|
467 | # Position returned is -1 when there is no ampersand. |
---|
468 | # |
---|
469 | proc ::tk::UnderlineAmpersand {text} { |
---|
470 | set idx [string first "&" $text] |
---|
471 | if {$idx >= 0} { |
---|
472 | set underline $idx |
---|
473 | # ignore "&&" |
---|
474 | while {[string match "&" [string index $text [expr {$idx + 1}]]]} { |
---|
475 | set base [expr {$idx + 2}] |
---|
476 | set idx [string first "&" [string range $text $base end]] |
---|
477 | if {$idx < 0} { |
---|
478 | break |
---|
479 | } else { |
---|
480 | set underline [expr {$underline + $idx + 1}] |
---|
481 | incr idx $base |
---|
482 | } |
---|
483 | } |
---|
484 | } |
---|
485 | if {$idx >= 0} { |
---|
486 | regsub -all -- {&([^&])} $text {\1} text |
---|
487 | } |
---|
488 | return [list $text $idx] |
---|
489 | } |
---|
490 | |
---|
491 | # ::tk::SetAmpText -- |
---|
492 | # Given widget path and text with "magic ampersands", |
---|
493 | # sets -text and -underline options for the widget |
---|
494 | # |
---|
495 | proc ::tk::SetAmpText {widget text} { |
---|
496 | foreach {newtext under} [::tk::UnderlineAmpersand $text] { |
---|
497 | $widget configure -text $newtext -underline $under |
---|
498 | } |
---|
499 | } |
---|
500 | |
---|
501 | # ::tk::AmpWidget -- |
---|
502 | # Creates new widget, turning -text option into -text and |
---|
503 | # -underline options, returned by ::tk::UnderlineAmpersand. |
---|
504 | # |
---|
505 | proc ::tk::AmpWidget {class path args} { |
---|
506 | set wcmd [list $class $path] |
---|
507 | foreach {opt val} $args { |
---|
508 | if {[string equal $opt {-text}]} { |
---|
509 | foreach {newtext under} [::tk::UnderlineAmpersand $val] { |
---|
510 | lappend wcmd -text $newtext -underline $under |
---|
511 | } |
---|
512 | } else { |
---|
513 | lappend wcmd $opt $val |
---|
514 | } |
---|
515 | } |
---|
516 | eval $wcmd |
---|
517 | if {$class=="button"} { |
---|
518 | bind $path <<AltUnderlined>> [list $path invoke] |
---|
519 | } |
---|
520 | return $path |
---|
521 | } |
---|
522 | |
---|
523 | # ::tk::FindAltKeyTarget -- |
---|
524 | # search recursively through the hierarchy of visible widgets |
---|
525 | # to find button or label which has $char as underlined character |
---|
526 | # |
---|
527 | proc ::tk::FindAltKeyTarget {path char} { |
---|
528 | switch [winfo class $path] { |
---|
529 | Button - |
---|
530 | Label { |
---|
531 | if {[string equal -nocase $char \ |
---|
532 | [string index [$path cget -text] \ |
---|
533 | [$path cget -underline]]]} {return $path} else {return {}} |
---|
534 | } |
---|
535 | default { |
---|
536 | foreach child \ |
---|
537 | [concat [grid slaves $path] \ |
---|
538 | [pack slaves $path] \ |
---|
539 | [place slaves $path] ] { |
---|
540 | if {""!=[set target [::tk::FindAltKeyTarget $child $char]]} { |
---|
541 | return $target |
---|
542 | } |
---|
543 | } |
---|
544 | } |
---|
545 | } |
---|
546 | return {} |
---|
547 | } |
---|
548 | |
---|
549 | # ::tk::AltKeyInDialog -- |
---|
550 | # <Alt-Key> event handler for standard dialogs. Sends <<AltUnderlined>> |
---|
551 | # to button or label which has appropriate underlined character |
---|
552 | # |
---|
553 | proc ::tk::AltKeyInDialog {path key} { |
---|
554 | set target [::tk::FindAltKeyTarget $path $key] |
---|
555 | if { $target == ""} return |
---|
556 | event generate $target <<AltUnderlined>> |
---|
557 | } |
---|
558 | |
---|
559 | # ::tk::mcmaxamp -- |
---|
560 | # Replacement for mcmax, used for texts with "magic ampersand" in it. |
---|
561 | # |
---|
562 | |
---|
563 | proc ::tk::mcmaxamp {args} { |
---|
564 | set maxlen 0 |
---|
565 | foreach arg $args { |
---|
566 | set length [string length [lindex [::tk::UnderlineAmpersand [mc $arg]] 0]] |
---|
567 | if {$length>$maxlen} { |
---|
568 | set maxlen $length |
---|
569 | } |
---|
570 | } |
---|
571 | return $maxlen |
---|
572 | } |
---|
573 | # For now, turn off the custom mdef proc for the mac: |
---|
574 | |
---|
575 | if {[string equal [tk windowingsystem] "aqua"]} { |
---|
576 | namespace eval ::tk::mac { |
---|
577 | set useCustomMDEF 0 |
---|
578 | } |
---|
579 | } |
---|