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=head1 NAME |
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SVG::Timelime::Event - A single event in an SVG timeline. |
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=head1 SYNOPSIS |
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See L<SVG::Timeline>. |
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=cut |
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use 5.010; |
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use Moose; |
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use Moose::Util::TypeConstraints; |
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use Time::Piece; |
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coerce __PACKAGE__, |
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from 'HashRef', |
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via { __PACKAGE__->new($_) }; |
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# Chosen format: yyyy-mm-dd |
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subtype 'SVG::Timeline::DateStr', |
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as 'Str', |
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where { m/ \d{4}-\d{2}-\d{2} /ax }; |
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subtype 'SVG::Timeline::YearMonthStr', |
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as 'Str', |
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where { m/ \d{4}-\d{2} /ax }; |
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subtype 'SVG::Timeline::YearStr', |
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as 'Str', |
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where { m/ \d{4} /as }; |
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subtype 'SVG::Timeline::Num', |
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as 'Num'; |
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coerce 'SVG::Timeline::DateStr', |
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from 'SVG::Timeline::YearStr', |
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via { $_ . '-01-01' }; |
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coerce 'SVG::Timeline::DateStr', |
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from 'SVG::Timeline::YearMonthStr', |
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via { $_ . '-01' }; |
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coerce 'SVG::Timeline::Num', |
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from 'SVG::Timeline::DateStr', |
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via \&str2num; |
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has index => ( |
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is => 'ro', |
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isa => 'Int', |
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required => 1, |
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); |
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has text => ( |
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is => 'ro', |
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isa => 'Str', |
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required => 1, |
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); |
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my ($datestr) = @_; |
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my $date = Time::Piece->strptime($datestr, '%Y-%m-%d'); |
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return $date->year + ( $date->yday / ($date->is_leap_year ? 366 : 365) ); |
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} |
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has start => ( |
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is => 'ro', |
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isa => 'SVG::Timeline::Num', |
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required => 1, |
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coerce => 1, |
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); |
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has end => ( |
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is => 'ro', |
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isa => 'SVG::Timeline::Num', |
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required => 1, |
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coerce => 1, |
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); |
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has colour => ( |
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is => 'ro', |
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isa => 'Maybe[Str]', |
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required => 0, |
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); |
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=head1 METHODS |
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=head2 draw_on($tl) |
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Draw the event inside the given timeline object. |
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=cut |
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my $self = shift; |
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my ($tl) = @_; |
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my $x = $self->start * $tl->units_per_year; |
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my $y = ($tl->bar_height * $self->index) |
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+ ($tl->bar_height * $tl->bar_spacing |
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* ($self->index - 1)); |
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$tl->rect( |
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x => $x, |
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y => $y, |
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width => ($self->end - $self->start) * $tl->units_per_year, |
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height => $tl->bar_height, |
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fill => $self->colour // $tl->default_colour, |
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stroke => $tl->bar_outline_colour, |
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'stroke-width' => 1 |
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); |
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$tl->text( |
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x => ($x + $tl->bar_height * 0.2), |
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y => $y + $tl->bar_height * 0.8, |
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'font-size' => $tl->bar_height * 0.8, |
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)->cdata($self->text); |
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} |
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no Moose; |
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__PACKAGE__->meta->make_immutable; |
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125
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1273
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=head1 AUTHOR |
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Dave Cross <dave@perlhacks.com> |
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=head1 COPYRIGHT AND LICENCE |
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Copyright (c) 2017, Magnum Solutions Ltd. All Rights Reserved. |
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This library is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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=cut |
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1; |