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# $Id: NavCompanion.pm 2490 2008-01-16 10:42:32Z comdog $ |
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package Palm::Magellan::NavCompanion::Record; |
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use strict; |
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use warnings; |
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no warnings; |
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use vars qw( $AUTOLOAD ); |
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=head1 NAME |
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Palm::Magellan::NavCompanion - access the Magellan GPS Companion waypoints file |
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=head1 SYNOPSIS |
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use Palm::Magellan::NavCompanion; |
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my $pdb = Palm::Magellan::NavCompanion->new; |
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$pdb->Load( $file ); |
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my $waypoints = $pdb->{records}; |
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$, = ", "; |
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foreach my $wp ( @$waypoints ) |
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{ |
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print $wp->name, $wp->latitude, $wp->longitude; |
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print "\n"; |
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} |
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=head1 DESCRIPTION |
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This module gives you access to the waypoints in the Magellan's GPS |
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Companion "Companion Waypoints.pdb" file. You have to be able to load |
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that file, which probably means that you have it on your computer |
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rather than your Palm. On my machine, this file shows up in the Palm |
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directory as C< Palm/Users/..user../Backups/Companion Waypoints.pdb >. |
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Behind-the-scenes, Palm::PDB does all the work, so this module has |
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part of its interface and data structure. For instance, the Load() |
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method accesses and parses the file and returns the general data |
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structure that Palm::PDB creates. The interesting bits (the |
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waypoints) is an anonymous array which is the value for the key |
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C. |
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# an anonymous array |
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my $waypoints = $pdb->{records}; |
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Each element in C< @{ $waypoints } > is an object of class |
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C, which is really just a class |
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of accessor methods (for now). |
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=head2 Methods |
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=over 4 |
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=item new |
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Create a new object. This method takes no arguments |
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=item Load( FILENAME ) |
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Load a file in Palm Database format |
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=item name |
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The description. The format allows up to 20 |
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characters. |
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=item description |
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The description. The format allows up to 32 |
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characters. |
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=item elevation |
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The altitude, in meters |
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=item latitude |
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The latitude, as a decimal number. Positive numbers are north latitude |
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and negative numbers are south latitude. |
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=item longitude |
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The longitude, as a decimal number. Positive numbers are east longitude |
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and negative numbers are west longitude. |
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=item creation_date |
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The creation date of the waypoint, in the format MM/DD/YYYY. |
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This comprises the individual elements found in the database |
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format, which are also available individually. |
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=item creation_time |
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The creation time of the waypoint, in the format HH:MM.ss |
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This comprises the individual elements found in the database |
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format, which are also available individually. |
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=item creation_sec |
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The second the waypoint was created. |
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=item creation_min |
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The minute the waypoint was created. |
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=item creation_hour |
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The hour the waypoint was created. |
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=item creation_day |
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The day the waypoint was created. |
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=item creation_mon |
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The month the waypoint was created. |
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=item creation_year |
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The year the waypoint was created. It includes the century. |
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=back |
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=head1 TO DO |
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* write records too |
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=head1 SEE ALSO |
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L |
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=head1 SOURCE AVAILABILITY |
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This source is part of a SourceForge project which always has the |
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latest sources in SVN, as well as all of the previous releases. |
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http://sourceforge.net/projects/brian-d-foy/ |
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If, for some reason, I disappear from the world, one of the other |
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members of the project can shepherd this module appropriately. |
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=head1 AUTHOR |
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brian d foy C<< >> |
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=head1 COPYRIGHT AND LICENSE |
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Copyright (c) 2004-2008 brian d foy. All rights reserved. |
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This program is free software; you can redistribute it and/or modify |
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it under the same terms as Perl itself. |
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=cut |
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use Carp qw(carp); |
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use UNIVERSAL; |
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my %Allowed = map { $_, 1 } qw( |
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name |
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description |
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latitude |
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longitude |
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elevation |
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creation_date |
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creation_time |
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creation_sec |
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creation_min |
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creation_hour |
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creation_day |
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creation_mon |
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creation_year |
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); |
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sub AUTOLOAD { |
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my $self = shift; |
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my $method = $AUTOLOAD; |
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$method =~ s/.*:://; |
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if( exists $Allowed{ $method } ) |
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{ |
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$self->{$method} |
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} |
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else |
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{ |
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carp( "Unknown method call [$method]" ) |
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} |
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} |
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sub DESTROY { 1 }; |
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# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # |
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# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # |
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# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # |
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package Palm::Magellan::NavCompanion; |
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use strict; |
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use base qw(Palm::StdAppInfo Palm::Raw Exporter); |
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use vars qw($VERSION); |
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use Palm::Raw; |
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use Palm::StdAppInfo(); |
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$VERSION = '0.53'; |
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our $Creator = "MGtz"; |
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our $Type = "Twpt"; |
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sub import |
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{ |
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&Palm::PDB::RegisterPDBHandlers( __PACKAGE__, |
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[ $Creator, $Type ] ); |
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} |
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sub new |
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{ |
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my $class = shift; |
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my $self = $class->SUPER::new(@_); |
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# Create a generic PDB. No need to rebless it, |
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# though. |
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0
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$self->{name} = "MagNavDB"; # Default |
226
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0
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0
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$self->{creator} = $Creator; |
227
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0
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0
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$self->{type} = $Type; |
228
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229
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0
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0
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$self->{attributes}{resource} = 0; |
230
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# The PDB is not a resource database by |
231
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# default, but it's worth emphasizing, |
232
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# since MemoDB is explicitly not a PRC. |
233
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234
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# Initialize the AppInfo block |
235
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0
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0
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$self->{appinfo} = { |
236
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sortOrder => undef, # XXX - ? |
237
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}; |
238
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239
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# Add the standard AppInfo block stuff |
240
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0
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0
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&Palm::StdAppInfo::seed_StdAppInfo($self->{appinfo}); |
241
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242
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# Give the PDB a blank sort block |
243
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0
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0
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$self->{sort} = undef; |
244
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245
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# Give the PDB an empty list of records |
246
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0
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0
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$self->{records} = []; |
247
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248
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0
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0
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return $self; |
249
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} |
250
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251
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sub new_Record |
252
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{ |
253
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0
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0
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1
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0
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my $class = shift; |
254
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0
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0
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my $hash = $class->SUPER::new_Record(@_); |
255
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256
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0
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0
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$hash->{data} = ""; |
257
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258
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0
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0
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return $hash; |
259
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} |
260
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261
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# ParseAppInfoBlock |
262
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|
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# Parse the AppInfo block for Memo databases. |
263
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|
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sub ParseAppInfoBlock |
264
|
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{ |
265
|
3
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3
|
1
|
5279
|
my $self = shift; |
266
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3
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7
|
my $data = shift; |
267
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3
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7
|
my $sortOrder; |
268
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my $i; |
269
|
3
|
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|
6
|
my $appinfo = {}; |
270
|
3
|
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|
7
|
my $std_len; |
271
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|
272
|
|
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|
|
# Get the standard parts of the AppInfo block |
273
|
3
|
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13
|
$std_len = &Palm::StdAppInfo::parse_StdAppInfo($appinfo, $data); |
274
|
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275
|
3
|
|
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|
651
|
$data = $appinfo->{other}; # Look at the non-category part |
276
|
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|
277
|
3
|
|
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|
16
|
return $appinfo; |
278
|
|
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|
|
} |
279
|
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|
|
280
|
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|
|
sub PackAppInfoBlock |
281
|
|
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|
|
{ |
282
|
0
|
|
|
0
|
1
|
0
|
my $self = shift; |
283
|
0
|
|
|
|
|
0
|
my $retval; |
284
|
|
|
|
|
|
|
my $i; |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
# Pack the non-category part of the AppInfo block |
287
|
0
|
|
|
|
|
0
|
$self->{appinfo}{other} = |
288
|
|
|
|
|
|
|
pack("x4 C x1", $self->{appinfo}{sortOrder}); |
289
|
|
|
|
|
|
|
|
290
|
|
|
|
|
|
|
# Pack the AppInfo block |
291
|
0
|
|
|
|
|
0
|
$retval = &Palm::StdAppInfo::pack_StdAppInfo($self->{appinfo}); |
292
|
|
|
|
|
|
|
|
293
|
0
|
|
|
|
|
0
|
return $retval; |
294
|
|
|
|
|
|
|
} |
295
|
|
|
|
|
|
|
|
296
|
|
|
|
|
|
|
sub PackSortBlock |
297
|
|
|
|
|
|
|
{ |
298
|
0
|
|
|
0
|
1
|
0
|
return undef; |
299
|
|
|
|
|
|
|
} |
300
|
|
|
|
|
|
|
|
301
|
|
|
|
|
|
|
sub ParseRecord |
302
|
|
|
|
|
|
|
{ |
303
|
66
|
|
|
66
|
1
|
1999
|
my $self = shift; |
304
|
66
|
|
|
|
|
205
|
my %record = @_; |
305
|
|
|
|
|
|
|
|
306
|
66
|
|
|
|
|
99
|
my @created = (); |
307
|
66
|
|
|
|
|
75
|
my @unk_time = (); |
308
|
66
|
|
|
|
|
74
|
my( $latitude, $longitude, $elevation, $plot, $name ); |
309
|
|
|
|
|
|
|
|
310
|
66
|
|
|
|
|
594
|
( @created[0..5], undef, @unk_time[0..5], undef, |
311
|
|
|
|
|
|
|
@record{ qw(latitude longitude elevation plot ) }, |
312
|
|
|
|
|
|
|
undef, |
313
|
|
|
|
|
|
|
) = unpack 's6 s s6 s l l l C C', $record{data}; |
314
|
|
|
|
|
|
|
|
315
|
66
|
|
|
|
|
364
|
@record{ qw(name description) } = split /\000/, substr( $record{data}, 42 ); |
316
|
|
|
|
|
|
|
|
317
|
66
|
|
|
|
|
253
|
@record{ qw(creation_sec creation_min creation_hour) } |
318
|
|
|
|
|
|
|
= @created[2,1,0]; |
319
|
66
|
|
|
|
|
201
|
@record{ qw(creation_date creation_mon creation_year) } |
320
|
|
|
|
|
|
|
= @created[3,4,5]; |
321
|
|
|
|
|
|
|
|
322
|
66
|
|
|
|
|
342
|
$record{'creation_time'} = sprintf "%d:%02d.%02d", @created[2,1,0]; |
323
|
66
|
|
|
|
|
251
|
$record{'creation_date'} = sprintf "%d/%d/%04d", @created[3,4,5]; |
324
|
|
|
|
|
|
|
|
325
|
66
|
|
|
|
|
118
|
@record{ qw(latitude longitude) } = map { $_ / 1e5 } |
|
132
|
|
|
|
|
275
|
|
326
|
|
|
|
|
|
|
@record{ qw(latitude longitude) }; |
327
|
|
|
|
|
|
|
|
328
|
66
|
|
|
|
|
116
|
foreach my $key ( qw(data offset id category) ) |
329
|
|
|
|
|
|
|
{ |
330
|
264
|
|
|
|
|
423
|
delete $record{ $key }; |
331
|
|
|
|
|
|
|
} |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
#require Data::Dumper; |
334
|
|
|
|
|
|
|
#print STDERR Data::Dumper::Dumper( \%record ); |
335
|
|
|
|
|
|
|
|
336
|
66
|
|
|
|
|
340
|
return bless \%record, 'Palm::Magellan::NavCompanion::Record'; |
337
|
|
|
|
|
|
|
} |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
sub PackRecord |
340
|
|
|
|
|
|
|
{ |
341
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
342
|
0
|
|
|
|
|
|
my $record = shift; |
343
|
|
|
|
|
|
|
|
344
|
0
|
|
|
|
|
|
die "Writing records not implemented"; |
345
|
|
|
|
|
|
|
|
346
|
0
|
|
|
|
|
|
return $record->{data} . "\0"; # Add the trailing NUL |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
1; |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
__END__ |