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#!/usr/bin/perl
#---------------------------------------------------------------
# Project : Harmony
# Module : Harmony
# File : Logo.pm
#
# Copyright (C) 2001
# Centre d'Études de la Navigation Aérienne
# Authors: Vinot Jean-Luc <vinot@cena.fr>
#
#---------------------------------------------------------------
package Tk::Zinc::Logo;
use strict;
use Carp;
use Math::Trig;
Construct Tk::Widget 'Tk::Zinc::Logo';
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],[218, 0],[240, 0, 'c'],
[252, 17, 'c'],[252, 34],[252, 40, 'c'],[249, 50, 'c'],
[244, 56],[202, 105],[246, 105],[246, 87],[246, 60, 'c'],
[271, 37, 'c'],[297, 37],[323, 37, 'c'],[342, 57, 'c'],[344, 68],
[347, 64, 'c'],[350, 60, 'c'],[353, 56],[363, 46, 'c'],[375, 37, 'c'],
[395, 37],[395, 79],[393, 79],[385, 79, 'c'],[379, 86, 'c'],
[379, 93],[379, 100, 'c'],[385, 107, 'c'],[393, 107],[409, 107],
[409, 148],[397, 148],[378, 148, 'c'],[364, 144, 'c'],[354, 133],
[346, 124],[346, 148],[305, 148],[305, 87],[305, 83, 'c'],[301, 79, 'c'],
[297, 79],[293, 79, 'c'],[289, 83, 'c'],[289, 87],[289, 150],[251, 150],
[251, 130],[251, 126, 'c'],[247, 122, 'c'],[243, 122],[239, 122, 'c'],
[235, 126, 'c'],[235, 130],[235, 150],[176, 150],[154, 150,'c'],
[146, 131,'c'],[146, 114],[148, 105],[120, 105],[104, 81],[104, 105],
[74, 105],[74, 41],[52, 41],[52, 105],[20, 105],[20, 41],[0, 41],
],
-params => {-priority => 50,
-linewidth => 3,
-linecolor => '#000000;100',
-filled => 1,
-closed => 0,
-fillcolor => 'logoshape',
},
},
-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 $widget = shift;
my %params = @_;
my $self = {};
bless ($self, $type);
$self->{'-widget'} = $widget;
$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'}},
);
# 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;
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