Commit | Line | Data |
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86530b38 AT |
1 | package Tk::Menu::Item; |
2 | ||
3 | require Tk::Menu; | |
4 | ||
5 | use Carp; | |
6 | use strict; | |
7 | ||
8 | use vars qw($VERSION); | |
9 | $VERSION = '3.027'; # $Id: //depot/Tk8/Tk/Menu/Item.pm#27 $ | |
10 | ||
11 | sub PreInit | |
12 | { | |
13 | # Dummy (virtual) method | |
14 | my ($class,$menu,$minfo) = @_; | |
15 | } | |
16 | ||
17 | sub new | |
18 | { | |
19 | my ($class,$menu,%minfo) = @_; | |
20 | my $kind = $class->kind; | |
21 | my $name = $minfo{'-label'}; | |
22 | if (defined $kind) | |
23 | { | |
24 | my $invoke = delete $minfo{'-invoke'}; | |
25 | if (defined $name) | |
26 | { | |
27 | # Use ~ in name/label to set -underline | |
28 | if (defined($minfo{-label}) && !defined($minfo{-underline})) | |
29 | { | |
30 | my $cleanlabel = $minfo{-label}; | |
31 | my $underline = ($cleanlabel =~ s/^(.*)~/$1/) ? length($1): undef; | |
32 | if (defined($underline) && ($underline >= 0)) | |
33 | { | |
34 | $minfo{-underline} = $underline; | |
35 | $name = $cleanlabel if ($minfo{-label} eq $name); | |
36 | $minfo{-label} = $cleanlabel; | |
37 | } | |
38 | } | |
39 | } | |
40 | else | |
41 | { | |
42 | $name = $minfo{'-bitmap'} || $minfo{'-image'}; | |
43 | croak('No -label') unless defined($name); | |
44 | $minfo{'-label'} = $name; | |
45 | } | |
46 | $class->PreInit($menu,\%minfo); | |
47 | $menu->add($kind,%minfo); | |
48 | $menu->invoke('last') if ($invoke); | |
49 | } | |
50 | else | |
51 | { | |
52 | $menu->add('separator'); | |
53 | } | |
54 | return bless [$menu,$name],$class; | |
55 | } | |
56 | ||
57 | sub configure | |
58 | { | |
59 | my $obj = shift; | |
60 | my ($menu,$name) = @$obj; | |
61 | my %args = @_; | |
62 | $obj->[1] = $args{'-label'} if exists $args{'-label'}; | |
63 | $menu->entryconfigure($name,@_); | |
64 | } | |
65 | ||
66 | sub cget | |
67 | { | |
68 | my $obj = shift; | |
69 | my ($menu,$name) = @$obj; | |
70 | $menu->entrycget($name,@_); | |
71 | } | |
72 | ||
73 | sub parentMenu | |
74 | { | |
75 | my $obj = shift; | |
76 | return $obj->[0]; | |
77 | } | |
78 | ||
79 | # Default "kind" is a command | |
80 | sub kind { return 'command' } | |
81 | ||
82 | # Now the derived packages | |
83 | ||
84 | package Tk::Menu::Separator; | |
85 | use base qw(Tk::Menu::Item); | |
86 | Construct Tk::Menu 'Separator'; | |
87 | sub kind { return undef } | |
88 | ||
89 | package Tk::Menu::Button; | |
90 | use base qw(Tk::Menu::Item); | |
91 | Construct Tk::Menu 'Button'; | |
92 | Construct Tk::Menu 'Command'; | |
93 | ||
94 | #package Tk::Menu::Command; | |
95 | #use base qw(Tk::Menu::Button); | |
96 | #Construct Tk::Menu 'Command'; | |
97 | ||
98 | package Tk::Menu::Cascade; | |
99 | use base qw(Tk::Menu::Item); | |
100 | Construct Tk::Menu 'Cascade'; | |
101 | sub kind { return 'cascade' } | |
102 | use Carp; | |
103 | ||
104 | sub PreInit | |
105 | { | |
106 | my ($class,$menu,$minfo) = @_; | |
107 | my $tearoff = delete $minfo->{-tearoff}; | |
108 | my $items = delete $minfo->{-menuitems}; | |
109 | my $widgetvar = delete $minfo->{-menuvar}; | |
110 | my $command = delete $minfo->{-postcommand}; | |
111 | my $name = delete $minfo->{'Name'}; | |
112 | $name = $minfo->{'-label'} unless defined $name; | |
113 | my @args = (); | |
114 | push(@args, '-tearoff' => $tearoff) if (defined $tearoff); | |
115 | push(@args, '-menuitems' => $items) if (defined $items); | |
116 | push(@args, '-postcommand' => $command) if (defined $command); | |
117 | my $submenu = $minfo->{'-menu'}; | |
118 | unless (defined $submenu) | |
119 | { | |
120 | $minfo->{'-menu'} = $submenu = $menu->Menu(Name => $name, @args); | |
121 | } | |
122 | $$widgetvar = $submenu if (defined($widgetvar) && ref($widgetvar)); | |
123 | } | |
124 | ||
125 | sub menu | |
126 | { | |
127 | my ($self,%args) = @_; | |
128 | my $w = $self->parentMenu; | |
129 | my $menu = $self->cget('-menu'); | |
130 | if (!defined $menu) | |
131 | { | |
132 | require Tk::Menu; | |
133 | $w->ColorOptions(\%args); | |
134 | my $name = $self->cget('-label'); | |
135 | warn "Had to (re-)reate menu for $name"; | |
136 | $menu = $w->Menu(Name => $name, %args); | |
137 | $self->configure('-menu'=>$menu); | |
138 | } | |
139 | else | |
140 | { | |
141 | $menu->configure(%args) if %args; | |
142 | } | |
143 | return $menu; | |
144 | } | |
145 | ||
146 | # Some convenience methods | |
147 | ||
148 | sub separator { shift->menu->Separator(@_); } | |
149 | sub command { shift->menu->Command(@_); } | |
150 | sub cascade { shift->menu->Cascade(@_); } | |
151 | sub checkbutton { shift->menu->Checkbutton(@_); } | |
152 | sub radiobutton { shift->menu->Radiobutton(@_); } | |
153 | ||
154 | sub pack | |
155 | { | |
156 | my $w = shift; | |
157 | if ($^W) | |
158 | { | |
159 | require Carp; | |
160 | Carp::carp("Cannot 'pack' $w - done automatically") | |
161 | } | |
162 | } | |
163 | ||
164 | package Tk::Menu::Checkbutton; | |
165 | use base qw(Tk::Menu::Item); | |
166 | Construct Tk::Menu 'Checkbutton'; | |
167 | sub kind { return 'checkbutton' } | |
168 | ||
169 | package Tk::Menu::Radiobutton; | |
170 | use base qw(Tk::Menu::Item); | |
171 | Construct Tk::Menu 'Radiobutton'; | |
172 | sub kind { return 'radiobutton' } | |
173 | ||
174 | package Tk::Menu::Item; | |
175 | ||
176 | 1; | |
177 | __END__ | |
178 | ||
179 | =cut | |
180 |