1 # ui-menu.tcl --
2 #
3 # Defines a popup menu object
4 #
5 # Copyright (c) 1998-2002 The Regents of the University of California.
6 # All rights reserved.
7 #
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions are met:
10 #
11 # A. Redistributions of source code must retain the above copyright notice,
12 # this list of conditions and the following disclaimer.
13 # B. Redistributions in binary form must reproduce the above copyright notice,
14 # this list of conditions and the following disclaimer in the documentation
15 # and/or other materials provided with the distribution.
16 # C. Neither the names of the copyright holders nor the names of its
17 # contributors may be used to endorse or promote products derived from this
18 # software without specific prior written permission.
19 #
20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
21 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
24 # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31 Class PopupMenu
32
33 PopupMenu public init {w args} {
34 $self next
35
36 $self instvar win_ n_
37
38 set win_ $w
39 menubutton $win_ -indicatoron yes -menu $win_.m -relief raised -bd 2
40 menu $win_.m
41 set n_ 0
42
43 foreach a $args {
44 eval $self add $a
45 }
46 }
47
48 PopupMenu public add {text {cmd ""}} {
49 $self instvar win_ n_ text_ cmd_
50
51 $win_.m add command -label $text -command "$self select $n_"
52 if {$n_ == 0} {
53 $win_ configure -text $text
54 }
55
56 set text_($n_) $text
57 set cmd_($n_) $cmd
58 incr n_
59 }
60
61 PopupMenu public get {} {
62 $self instvar win_
63 return [$win_ cget -text]
64 }
65
66 PopupMenu public clear {} {
67 $self instvar win_ n_ text_ cmd_
68 $win_.m delete 0 end
69 for {set i 0} {$i<$n_} {incr i} {
70 unset text_($i)
71 unset cmd_($i)
72 }
73 set n_ 0
74 }
75
76 PopupMenu private select {n} {
77 $self instvar win_ text_ cmd_
78 $win_ configure -text $text_($n)
79 if {$cmd_($n) != ""} {
80 catch {eval $cmd_($n)}
81 }
82
83 }
84
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