Return to entry.tcl CVS log

Up to [Micropolis - Activity] / micropolis / res

Annotation of micropolis/res/entry.tcl, revision 1.1

1.1     ! root        1: # entry.tcl --
        !             2: #
        !             3: # This file contains Tcl procedures used to manage Tk entries.
        !             4: #
        !             5: # $Header: /user6/ouster/wish/scripts/RCS/entry.tcl,v 1.2 92/05/23 16:40:57 ouster Exp $ SPRITE (Berkeley)
        !             6: #
        !             7: # Copyright 1992 Regents of the University of California
        !             8: # Permission to use, copy, modify, and distribute this
        !             9: # software and its documentation for any purpose and without
        !            10: # fee is hereby granted, provided that this copyright
        !            11: # notice appears in all copies.  The University of California
        !            12: # makes no representations about the suitability of this
        !            13: # software for any purpose.  It is provided "as is" without
        !            14: # express or implied warranty.
        !            15: #
        !            16: 
        !            17: # The procedure below is invoked to backspace over one character
        !            18: # in an entry widget.  The name of the widget is passed as argument.
        !            19: 
        !            20: proc tk_entryBackspace w {
        !            21:     set x [expr {[$w index cursor] - 1}]
        !            22:     if {$x != -1} {$w delete $x}
        !            23: }
        !            24: 
        !            25: # The procedure below is invoked to backspace over one word in an
        !            26: # entry widget.  The name of the widget is passed as argument.
        !            27: 
        !            28: proc tk_entryBackword w {
        !            29:     set string [$w get]
        !            30:     set curs [expr [$w index cursor]-1]
        !            31:     if {$curs < 0} return
        !            32:     for {set x $curs} {$x > 0} {incr x -1} {
        !            33:        if {([string first [string index $string $x] " \t"] < 0)
        !            34:                && ([string first [string index $string [expr $x-1]] " \t"]
        !            35:                >= 0)} {
        !            36:            break
        !            37:        }
        !            38:     }
        !            39:     $w delete $x $curs
        !            40: }
        !            41: 
        !            42: # The procedure below is invoked after insertions.  If the caret is not
        !            43: # visible in the window then the procedure adjusts the entry's view to
        !            44: # bring the caret back into the window again.
        !            45: 
        !            46: proc tk_entrySeeCaret w {
        !            47:     set c [$w index cursor]
        !            48:     set left [$w index @0]
        !            49:     if {$left > $c} {
        !            50:        $w view $c
        !            51:        return
        !            52:     }
        !            53:     while {[$w index @[expr [winfo width $w]-5]] < $c} {
        !            54:        set left [expr $left+1]
        !            55:        $w view $left
        !            56:     }
        !            57: }
        !            58: 
        !            59: proc tk_entryCopyPress {w} {
        !            60:   set sel ""
        !            61:   catch {set sel [selection -window $w get]}
        !            62:   $w insert cursor $sel
        !            63:   tk_entrySeeCaret $w
        !            64: }
        !            65: 
        !            66: proc tk_entryCutPress {w} {
        !            67:   catch {$w delete sel.first sel.last}
        !            68:   tk_entrySeeCaret $w
        !            69: }
        !            70: 
        !            71: proc tk_entryDelLine {w} {
        !            72:   $w delete 0 end
        !            73: }
        !            74: 
        !            75: proc tk_entryDelPress {w} {
        !            76:   tk_entryBackspace $w
        !            77:   tk_entrySeeCaret $w
        !            78: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.