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package App::StaticImageGallery::Image; |
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BEGIN { |
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$App::StaticImageGallery::Image::VERSION = '0.002'; |
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} |
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use File::Basename (); |
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use Imager; |
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use Carp; |
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use parent 'App::StaticImageGallery::Base::NeedDir'; |
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sub init { |
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my $self = shift; |
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my %args = @_; |
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if ( defined $args{original} ) { |
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$self->{_original} = $args{original}; |
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}else{ |
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croak "Missing option 'original'"; |
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} |
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return $self; |
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} |
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sub original { return shift->{_original}; } |
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sub Imager { |
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my $self = shift; |
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return $self->{_Imager} if defined $self->{_Imager}; |
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my $file = sprintf("%s/%s",$self->work_dir,$self->original); |
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$self->{_Imager} = Imager->new( file => $file ); |
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unless ( $self->{_Imager} ){ |
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$self->msg_warning("SKIP: %s : %s",$file,$self->{_Imager}->errstr); |
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return; |
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} |
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return $self->{_Imager}; |
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} |
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sub metadata { |
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my $self = shift; |
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return $self->{_metadata} if defined $self->{_metadata}; |
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$self->{_metadata} = {}; |
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foreach my $md ( $self->Imager->tags() ){ |
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$self->{_metadata}->{ $md->[0] } = $md->[1]; |
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} |
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return $self->{_metadata}; |
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} |
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sub thumbnail { |
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my $self = shift; |
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return $self->{_thumbnail} if defined $self->{_thumbnail}; |
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my $thumb = $self->Imager |
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->scale( xpixels=> 125, ypixels=>125, type=>'max' ) |
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->crop(width=>125, height=>125); |
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$self->{_thumbnail} = sprintf("%s.%s.jpg", |
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File::Basename::basename( $self->original ), |
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'thumbnail', |
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); |
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return $self->{_thumbnail} unless $self->must_create($self->{_thumbnail}); |
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$self->msg_verbose(2,"Write file %s",$self->{_thumbnail}); |
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unless ( $thumb->write( file => $self->data_dir. '/' .$self->{_thumbnail}, type=>'jpeg' ) ) { |
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$self->msg_warning("SKIP thumbnail: %s : %s",$self->{_thumbnail},$thumb->errstr); |
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return; |
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} |
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return $self->{_thumbnail}; |
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} |
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sub small { return shift->_scale('small', xpixels => 256 ); } |
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sub medium { return shift->_scale('medium', xpixels => 512 ); } |
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sub large { return shift->_scale('large', xpixels => 1024 ); } |
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sub _scale{ |
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my ($self, $infix, @scale_options) = @_; |
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my $image = $self->Imager->scale( @scale_options ); |
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my $filename = sprintf("%s.%s.jpg", |
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File::Basename::basename( $self->original ), |
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$infix, |
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); |
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return $filename unless $self->must_create($filename); |
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$self->msg_verbose(2,"Write file %s",$filename); |
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unless ( $image->write( file => $self->data_dir . '/' . $filename ) ) { |
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$self->msg_warning("SKIP: %s : %s",$filename,$image->errstr); |
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return; |
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} |
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return $filename; |
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} |
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sub must_create { |
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my ($self,$filename) = @_; |
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my $original = sprintf("%s/%s",$self->work_dir,$self->original); |
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my $new = sprintf("%s/%s",$self->data_dir,$filename); |
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my $mtime_original = (stat($original))[9]; |
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my $mtime_new = (stat($new))[9] || 0; |
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if ( $mtime_new > $mtime_original ){ |
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$self->msg_verbose(6,"must_create:FALSE Original:%s:%d New:%s:%d", |
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$original, |
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$mtime_original, |
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$new, |
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$mtime_new, |
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); |
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return 0; |
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} |
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$self->msg_verbose(6,"must_create:TRUE Original:%s:%d New:%s:%d", |
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$original, |
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$mtime_original, |
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$new, |
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$mtime_new, |
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); |
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return 1; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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App::StaticImageGallery::Image - Handles a image |
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=head1 VERSION |
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version 0.002 |
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=head1 DESCRIPTION |
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=head1 SYNOPSIS |
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142
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=head1 METHODS |
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=head2 Imager |
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=head2 init |
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=head2 large |
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=head2 medium |
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=head2 metadata |
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=head2 original |
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=head2 small |
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=head2 thumbnail |
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=head2 must_create |
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=over 4 |
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=item Arguments: $filename |
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166
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=item Return value: Bool [0|1] |
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=back |
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Compare $filename with the original file. If the original file newer then |
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$filenamen in the data dir then return 1. |
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=head1 AUTHOR |
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See L<App::StaticImageGallery/AUTHOR> and L<App::StaticImageGallery/CONTRIBUTORS>. |
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177
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=head1 COPYRIGHT & LICENSE |
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=cut |