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
|
package Tk::Zinc::Logo;
#---------------------------------------------------------------
#
# Module : Logo.pm
# $Id$
#
# Copyright (C) 2001-2003
# Centre d'Études de la Navigation Aérienne
# Authors: Jean-Luc Vinot <vinot@cena.fr>
#
#---------------------------------------------------------------
use vars qw( $VERSION );
($VERSION) = sprintf("%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/);
use strict;
use Carp;
use Math::Trig;
my @Gradiants;
# paramètres de construction graphique
my %builder = (-gradset => {'logoshape' => '=axial 270 |#ffffff;100 0 28|#66848c;100 96|#7192aa;100 100',
'logopoint' => '=radial -20 -20 |#ffffff;100 0|#f70000;100 48|#900000;100 80|#ab0000;100 100',
'logoptshad' => '=path 0 0 |#770000;64 0|#770000;70 78|#770000;0 100',
},
-shape => {-form => {-itemtype => 'curve',
-coords => [[0,0],[106,0],[106,58],[122,41],[156,41],[131,69],[153,99],[203,41],
[155,41],[155,0],[225.71,0],[251.34,0,'c'],[265.17,29.63,'c'],
[248.71,49.27],[202,105],[246,105],[246,87],[246,59.385,'c'],[268.38,37,'c'],
[296,37],[323.62,37,'c'],[346,59.385,'c'],[346,87],[346,148],[305,148],
[305,87],[305,82.58,'c'],[301.42,79,'c'],[297,79],[292.58,79,'c'],
[289,82.58,'c'],[289,87],[289,150],[251,150],[251,130],[251,125.58,'c'],
[247.42,122,'c'],[243,122],[243,122],[238.58,122,'c'],[235,125.58,'c'],
[235,130],[235,150],[168.12,150],[144.7,150,'c'],[132.38,122.57,'c'],
[147.94,105.06],[148,105],[120,105],[104,81],[104,105],[74,105],[74,41],
[52,41],[52,105],[20,105],[20,41],[0,41]],
-contour => ['add', -1, [[395,78],[395,37],[364.62,37,'c'],[340,61.62,'c'],[340,92],
[340,93],[340,123.38,'c'],[364.62,148,'c'],[395,148],[409,148],
[409,107],[395,107],[386.72,107,'c'],[380,100.28,'c'],[380,92],
[380,93],[380,84.72,'c'],[386.72,78,'c'],[395,78]]],
-params => {-closed => 0,
-filled => 1,
-visible => 1,
-fillcolor => 'logoshape',
-linewidth => 2.5,
-linecolor => '#000000',
-priority => 40,
-fillrule => 'nonzero',
-tags => ['zinc_shape'],
},
},
-shadow => {-clone => '-form',
-translate => [6, 6],
-params => {-fillcolor => '#000000;18',
-linewidth => 0,
-priority => 20,
},
},
},
-point => {-coords => [240, 96],
-params => {-alpha => 80,
-priority => 100,
},
-form => {-itemtype => 'arc',
-coords => [[-20, -20], [20, 20]],
-params => {-priority => 50,
-filled => 1,
-linewidth => 1,
-linecolor => '#a10000;100',
-fillcolor => 'logopoint',
-closed => 1,
},
},
-shadow => {-clone => '-form',
-translate => [5, 5],
-params => {-fillcolor => 'logoptshad',
-linewidth => 0,
-priority => 20,
},
},
},
);
sub new {
my $proto = shift;
my $type = ref($proto) || $proto;
my %params = @_;
my $self = {};
bless ($self, $type);
if (exists $params{'-widget'}) {
$self->{'-widget'} = $params{'-widget'};
} else {
croak "in Tk::Zinc::Logo constructor, the -widget attribute must be defined\n";
}
$self->{'-parent'} = (exists $params{'-parent'}) ? $params{'-parent'} : 1;
$self->{'-priority'} = (exists $params{'-priority'}) ? $params{'-priority'} : 500;
$self->{'-position'} = (exists $params{'-position'}) ? $params{'-position'} : [0, 0];
$self->{'-scale'} = (exists $params{'-scale'}) ? $params{'-scale'} : [1, 1];
$self->drawLogo();
return bless $self, $type;
}
sub drawLogo {
my ($self) = @_;
my $zinc = $self->{'-widget'};
my $parent = $self->{'-parent'};
my $priority = $self->{'-priority'};
if ($builder{'-gradset'}) {
while (my ($name, $gradiant) = each( %{$builder{'-gradset'}})) {
# création des gradiants nommés
$zinc->gname($gradiant, $name) unless $zinc->gname($name);
push(@Gradiants, $name);
}
}
# création des groupes logo
# logogroup : groupe de coordonnées
my $logogroup = $self->{'-item'} = $zinc->add('group', $parent, -priority => $priority);
$zinc->coords($logogroup, $self->{'-position'}) if ($self->{'-position'});
# group de scaling
my $group = $self->{'-scaleitem'} = $zinc->add('group', $logogroup);
$zinc->scale($group, @{$self->{'-scale'}}) if ($self->{'-scale'});
# création de l'item shape (Zinc)
my $formstyle = $builder{'-shape'}->{'-form'};
$self->ajustLineWidth($formstyle->{'-params'});
my $shape = $zinc->add('curve', $group,
$formstyle->{'-coords'},
%{$formstyle->{'-params'}},
);
$zinc->contour($shape, @{$formstyle->{'-contour'}});
# ombre portée de la shape
my $shadstyle = $builder{'-shape'}->{'-shadow'};
my $shadow = $zinc->clone($shape, %{$shadstyle->{'-params'}});
$zinc->translate($shadow, @{$shadstyle->{'-translate'}}) if ($shadstyle->{'-translate'});
# réalisation du point
my $pointconf = $builder{'-point'};
my $ptgroup = $zinc->add('group', $group, %{$pointconf->{'-params'}});
$zinc->coords($ptgroup, $pointconf->{'-coords'});
my $pointstyle = $pointconf->{'-form'};
my $point = $zinc->add('arc', $ptgroup,
$pointstyle->{'-coords'},
%{$pointstyle->{'-params'}},
);
my $shadpoint = $zinc->clone($point, %{$shadstyle->{'-params'}});
$shadstyle = $pointconf->{'-shadow'};
$zinc->translate($shadpoint, @{$shadstyle->{'-translate'}});
}
sub ajustLineWidth {
my ($self, $style, $scale) = @_;
if ($style->{'-linewidth'}) {
my ($sx, $sy) = @{$self->{'-scale'}};
my $linewidth = $style->{'-linewidth'};
if ($linewidth >= 2) {
my $ratio = ($sx > $sy) ? $sy : $sx;
$style->{'-linewidth'} = $linewidth * $ratio;
}
}
}
1;
__END__
=head1 NAME
Tk::Zinc::Logo - a perl module for drawing the TkZinc logo.
=head1 SYNOPSIS
use Tk::Zinc::Logo;
my $zinc = MainWindow->new()->Zinc()->pack;
my $logo = $zinc->ZincLogo([options]);
=head1 OPTIONS
=over
=item B<-parent> => zinc group
Specify the parent group. Default is 1.
=item B<-position> => [x, y]
Specify the relative position of the logo in its parent group. Default is [0, 0].
=item B<-priority> => integer
Specify the priority of the logo in its parent group. Default is 500.
=item B<-scale> => [sx, sy]
Scecify the xscale and yscale factors of the logo. Default is [1, 1].
=back
=head1 AUTEUR
Jean-Luc Vinot <vinot@cena.fr>
|
