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|
#!/usr/bin/perl
#
# FixMyStreet:Map
# Adding the ability to have different maps on FixMyStreet.
#
# Copyright (c) 2010 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org; WWW: http://www.mysociety.org/
package FixMyStreet::Map;
use strict;
use Problems;
use Cobrand;
use mySociety::Config;
use mySociety::Gaze;
use mySociety::GeoUtil qw(national_grid_to_wgs84);
use mySociety::Locale;
use mySociety::Web qw(ent NewURL);
# Run on module boot up
load();
# This is yucky, but no-one's taught me a better way
sub load {
my $type = mySociety::Config::get('MAP_TYPE');
my $class = "FixMyStreet::Map::$type";
eval "use $class";
}
sub header {
my ( $q, $type ) = @_;
return '' unless $type;
my $cobrand = Page::get_cobrand($q);
my $cobrand_form_elements =
Cobrand::form_elements( $cobrand, 'mapForm', $q );
my $form_action = Cobrand::url( $cobrand, '', $q );
my $encoding = '';
$encoding = ' enctype="multipart/form-data"' if $type == 2;
my $pc = $q->param('pc') || '';
my $pc_enc = ent($pc);
return <<EOF;
<form action="$form_action" method="post" name="mapForm" id="mapForm"$encoding>
<input type="hidden" name="submit_map" value="1">
<input type="hidden" name="pc" value="$pc_enc">
$cobrand_form_elements
EOF
}
=head2 map_features_easting_northing
Wrapper around map_features which does the easting, northing to lat, lon
conversion.
=cut
sub map_features_easting_northing {
my ( $q, $easting, $northing, $interval ) = @_;
my ( $lat, $lon ) = national_grid_to_wgs84( $easting, $northing, 'G' );
return map_features( $q, $lat, $lon, $interval );
}
sub map_features {
my ( $q, $lat, $lon, $interval ) = @_;
# TODO - be smarter about calculating the surrounding square
# use deltas that are roughly 500m in the UK - so we get a 1 sq km search box
my $lat_delta = 0.00438;
my $lon_delta = 0.00736;
my $min_lat = $lat - $lat_delta;
my $max_lat = $lat + $lat_delta;
my $min_lon = $lon - $lon_delta;
my $max_lon = $lon + $lon_delta;
# list of problems around map can be limited, but should show all pins
my $around_limit #
= Cobrand::on_map_list_limit( Page::get_cobrand($q) ) || undef;
my @around_args = ( $min_lat, $max_lat, $min_lon, $max_lon, $interval );
my $around_map_list = Problems::around_map( @around_args, $around_limit );
my $around_map = Problems::around_map( @around_args, undef );
my $dist;
mySociety::Locale::in_gb_locale {
$dist =
mySociety::Gaze::get_radius_containing_population( $lat, $lon,
200000 );
};
$dist = int( $dist * 10 + 0.5 ) / 10;
my $limit = 20;
my @ids = map { $_->{id} } @$around_map_list;
my $nearby = Problems::nearby( $dist, join( ',', @ids ),
$limit, $lat, $lon, $interval );
return ( $around_map, $around_map_list, $nearby, $dist );
}
sub compass ($$$) {
my ( $q, $x, $y ) = @_;
my @compass;
for ( my $i = $x - 1 ; $i <= $x + 1 ; $i++ ) {
for ( my $j = $y - 1 ; $j <= $y + 1 ; $j++ ) {
$compass[$i][$j] = NewURL( $q, x => $i, y => $j );
}
}
my $recentre = NewURL($q);
my $host = Page::base_url_with_lang( $q, undef );
return <<EOF;
<table cellpadding="0" cellspacing="0" border="0" id="compass">
<tr valign="bottom">
<td align="right"><a rel="nofollow" href="${compass[$x-1][$y+1]}"><img src="$host/i/arrow-northwest.gif" alt="NW" width=11 height=11></a></td>
<td align="center"><a rel="nofollow" href="${compass[$x][$y+1]}"><img src="$host/i/arrow-north.gif" vspace="3" alt="N" width=13 height=11></a></td>
<td><a rel="nofollow" href="${compass[$x+1][$y+1]}"><img src="$host/i/arrow-northeast.gif" alt="NE" width=11 height=11></a></td>
</tr>
<tr>
<td><a rel="nofollow" href="${compass[$x-1][$y]}"><img src="$host/i/arrow-west.gif" hspace="3" alt="W" width=11 height=13></a></td>
<td align="center"><a rel="nofollow" href="$recentre"><img src="$host/i/rose.gif" alt="Recentre" width=35 height=34></a></td>
<td><a rel="nofollow" href="${compass[$x+1][$y]}"><img src="$host/i/arrow-east.gif" hspace="3" alt="E" width=11 height=13></a></td>
</tr>
<tr valign="top">
<td align="right"><a rel="nofollow" href="${compass[$x-1][$y-1]}"><img src="$host/i/arrow-southwest.gif" alt="SW" width=11 height=11></a></td>
<td align="center"><a rel="nofollow" href="${compass[$x][$y-1]}"><img src="$host/i/arrow-south.gif" vspace="3" alt="S" width=13 height=11></a></td>
<td><a rel="nofollow" href="${compass[$x+1][$y-1]}"><img src="$host/i/arrow-southeast.gif" alt="SE" width=11 height=11></a></td>
</tr>
</table>
EOF
}
1;
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