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authorMatthew Somerville <matthew@balti.ukcod.org.uk>2010-11-26 01:36:07 +0000
committerMatthew Somerville <matthew@balti.ukcod.org.uk>2010-11-26 01:36:07 +0000
commita17e62af230c2d9aa2fe49d22be990525950c01e (patch)
treef12cb1634ef9240e180cb1ae5f55df02b0060b64 /perllib/FixMyStreet/Map.pm
parenta821c15c33c59bb8ff3bb5f5722a15f2ca527b6c (diff)
Refactor map display into separate modules, response for own set-up and display.
Diffstat (limited to 'perllib/FixMyStreet/Map.pm')
-rw-r--r--perllib/FixMyStreet/Map.pm355
1 files changed, 0 insertions, 355 deletions
diff --git a/perllib/FixMyStreet/Map.pm b/perllib/FixMyStreet/Map.pm
deleted file mode 100644
index 315de0958..000000000
--- a/perllib/FixMyStreet/Map.pm
+++ /dev/null
@@ -1,355 +0,0 @@
-#!/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 LWP::Simple;
-
-use Problems;
-use Cobrand;
-use mySociety::Config;
-use mySociety::Gaze;
-use mySociety::GeoUtil;
-use mySociety::Locale;
-use mySociety::Web qw(ent NewURL);
-
-use constant TILE_WIDTH => mySociety::Config::get('TILES_WIDTH');
-use constant TIF_SIZE_M => mySociety::Config::get('TILES_TIFF_SIZE_METRES');
-use constant TIF_SIZE_PX => mySociety::Config::get('TILES_TIFF_SIZE_PIXELS');
-use constant SCALE_FACTOR => TIF_SIZE_M / (TIF_SIZE_PX / TILE_WIDTH);
-
-sub header_js {
- return '
-<script type="text/javascript" src="/js/map-tilma.js"></script>
-';
-}
-
-# display_map Q PARAMS
-# PARAMS include:
-# EASTING, NORTHING for the centre point of the map
-# TYPE is 1 if the map is clickable, 2 if clickable and has a form upload,
-# 0 if not clickable
-# PINS is array of pins to show, location and colour
-# PRE/POST are HTML to show above/below map
-sub display_map {
- my ($q, %params) = @_;
- $params{pre} ||= '';
- $params{post} ||= '';
- my $mid_point = TILE_WIDTH; # Map is 2 TILE_WIDTHs in size, square.
- if ($q->{site} eq 'barnet') { # Map is c. 380px wide
- $mid_point = 189;
- }
-
- # X/Y tile co-ords may be overridden in the query string
- my @vars = qw(x y);
- my %input = map { $_ => $q->param($_) || '' } @vars;
- ($input{x}) = $input{x} =~ /^(\d+)/; $input{x} ||= 0;
- ($input{y}) = $input{y} =~ /^(\d+)/; $input{y} ||= 0;
-
- my ($x, $y, $px, $py) = FixMyStreet::Map::os_to_px_with_adjust($q, $params{easting}, $params{northing}, $input{x}, $input{y});
-
- my $pins = '';
- foreach my $pin (@{$params{pins}}) {
- my $pin_x = FixMyStreet::Map::os_to_px($pin->[0], $x);
- my $pin_y = FixMyStreet::Map::os_to_px($pin->[1], $y, 1);
- $pins .= FixMyStreet::Map::display_pin($q, $pin_x, $pin_y, $pin->[2]);
- }
-
- $px = defined($px) ? $mid_point - $px : 0;
- $py = defined($py) ? $mid_point - $py : 0;
- $x = int($x)<=0 ? 0 : $x;
- $y = int($y)<=0 ? 0 : $y;
- my $url = mySociety::Config::get('TILES_URL');
- my $tiles_url = $url . ($x-1) . '-' . $x . ',' . ($y-1) . '-' . $y . '/RABX';
- my $tiles = LWP::Simple::get($tiles_url);
- return '<div id="map_box"> <div id="map"><div id="drag">' . _("Unable to fetch the map tiles from the tile server.") . '</div></div></div><div id="side">' if !$tiles;
- my $tileids = RABX::unserialise($tiles);
- my $tl = ($x-1) . '.' . $y;
- my $tr = $x . '.' . $y;
- my $bl = ($x-1) . '.' . ($y-1);
- my $br = $x . '.' . ($y-1);
- return '<div id="side">' if (!$tileids->[0][0] || !$tileids->[0][1] || !$tileids->[1][0] || !$tileids->[1][1]);
- my $tl_src = $url . $tileids->[0][0];
- my $tr_src = $url . $tileids->[0][1];
- my $bl_src = $url . $tileids->[1][0];
- my $br_src = $url . $tileids->[1][1];
-
- my $out = '';
- my $cobrand = Page::get_cobrand($q);
- my $root_path_js = Cobrand::root_path_js($cobrand, $q);
- my $cobrand_form_elements = Cobrand::form_elements($cobrand, 'mapForm', $q);
- my $img_type;
- my $form_action = Cobrand::url($cobrand, '', $q);
- if ($params{type}) {
- my $encoding = '';
- $encoding = ' enctype="multipart/form-data"' if ($params{type}==2);
- my $pc = $q->param('pc') || '';
- my $pc_enc = ent($pc);
- $out .= <<EOF;
-<form action="$form_action" method="post" name="mapForm" id="mapForm"$encoding>
-<input type="hidden" name="submit_map" value="1">
-<input type="hidden" name="x" id="formX" value="$x">
-<input type="hidden" name="y" id="formY" value="$y">
-<input type="hidden" name="pc" value="$pc_enc">
-$cobrand_form_elements
-EOF
- $img_type = '<input type="image"';
- } else {
- $img_type = '<img';
- }
- my $imgw = TILE_WIDTH . 'px';
- my $tile_width = TILE_WIDTH;
- my $tile_type = mySociety::Config::get('TILES_TYPE');
- $out .= <<EOF;
-<script type="text/javascript">
-$root_path_js
-var fixmystreet = {
- 'x': $x - 3,
- 'y': $y - 3,
- 'start_x': $px,
- 'start_y': $py,
- 'tile_type': '$tile_type',
- 'tilewidth': $tile_width,
- 'tileheight': $tile_width
-};
-</script>
-<div id="map_box">
-$params{pre}
- <div id="map"><div id="drag">
- $img_type alt="NW map tile" id="t2.2" name="tile_$tl" src="$tl_src" style="top:0px; left:0;">$img_type alt="NE map tile" id="t2.3" name="tile_$tr" src="$tr_src" style="top:0px; left:$imgw;"><br>$img_type alt="SW map tile" id="t3.2" name="tile_$bl" src="$bl_src" style="top:$imgw; left:0;">$img_type alt="SE map tile" id="t3.3" name="tile_$br" src="$br_src" style="top:$imgw; left:$imgw;">
- <div id="pins">$pins</div>
- </div>
-EOF
- if (Cobrand::show_watermark($cobrand) && mySociety::Config::get('TILES_TYPE') ne 'streetview') {
- $out .= '<div id="watermark"></div>';
- }
- $out .= compass($q, $x, $y);
- my $copyright;
- if (mySociety::Config::get('TILES_TYPE') eq 'streetview') {
- $copyright = _('Map contains Ordnance Survey data &copy; Crown copyright and database right 2010.');
- } else {
- $copyright = _('&copy; Crown copyright. All rights reserved. Ministry of Justice 100037819&nbsp;2008.');
- }
- $out .= <<EOF;
- </div>
- <p id="copyright">$copyright</p>
-$params{post}
-EOF
- $out .= '</div>';
- $out .= '<div id="side">';
- return $out;
-}
-
-sub display_map_end {
- my ($type) = @_;
- my $out = '</div>';
- $out .= '</form>' if ($type);
- return $out;
-}
-
-sub display_pin {
- my ($q, $px, $py, $col, $num) = @_;
- $num = '' if !$num || $num > 9;
- my $host = Page::base_url_with_lang($q, undef);
- my %cols = (red=>'R', green=>'G', blue=>'B', purple=>'P');
- my $out = '<img class="pin" src="' . $host . '/i/pin' . $cols{$col}
- . $num . '.gif" alt="' . _('Problem') . '" style="top:' . ($py-59)
- . 'px; left:' . ($px) . 'px; position: absolute;">';
- return $out unless $_ && $_->{id} && $col ne 'blue';
- my $cobrand = Page::get_cobrand($q);
- my $url = Cobrand::url($cobrand, NewURL($q, -retain => 1,
- -url => '/report/' . $_->{id},
- pc => undef,
- x => undef,
- y => undef,
- sx => undef,
- sy => undef,
- all_pins => undef,
- no_pins => undef), $q);
- $out = '<a title="' . ent($_->{title}) . '" href="' . $url . '">' . $out . '</a>';
- return $out;
-}
-
-sub map_features {
- my ($q, $easting, $northing, $interval) = @_;
-
- my $xx = FixMyStreet::Map::os_to_tile($easting);
- my $yy = FixMyStreet::Map::os_to_tile($northing);
- my $x = int($xx);
- my $y = int($yy);
- $x += 1 if ($xx - $x > 0.5);
- $y += 1 if ($yy - $y > 0.5);
-
- my $min_e = FixMyStreet::Map::tile_to_os($x-3); # Due to when the front-end AJAX look ups pins
- my $min_n = FixMyStreet::Map::tile_to_os($y-3);
- my $mid_e = FixMyStreet::Map::tile_to_os($x);
- my $mid_n = FixMyStreet::Map::tile_to_os($y);
- my $max_e = FixMyStreet::Map::tile_to_os($x+2);
- my $max_n = FixMyStreet::Map::tile_to_os($y+2);
-
- # list of problems aoround map can be limited, but should show all pins
- my ($around_map, $around_map_list);
- if (my $around_limit = Cobrand::on_map_list_limit(Page::get_cobrand($q))) {
- $around_map_list = Problems::around_map($min_e, $max_e, $min_n, $max_n, $interval, $around_limit);
- $around_map = Problems::around_map($min_e, $max_e, $min_n, $max_n, $interval, undef);
- } else {
- $around_map = $around_map_list = Problems::around_map($min_e, $max_e, $min_n, $max_n, $interval, undef);
- }
-
- my $dist;
- mySociety::Locale::in_gb_locale {
- my ($lat, $lon) = mySociety::GeoUtil::national_grid_to_wgs84($mid_e, $mid_n, 'G');
- $dist = mySociety::Gaze::get_radius_containing_population($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, $mid_e, $mid_n, $interval);
-
- return ($around_map, $around_map_list, $nearby, $dist);
-}
-
-sub map_pins {
- my ($q, $x, $y, $sx, $sy, $interval) = @_;
-
- my $e = FixMyStreet::Map::tile_to_os($x);
- my $n = FixMyStreet::Map::tile_to_os($y);
- my ($around_map, $around_map_list, $nearby, $dist) = FixMyStreet::Map::map_features($q, $e, $n, $interval);
-
- my $pins = '';
- foreach (@$around_map) {
- my $px = FixMyStreet::Map::os_to_px($_->{easting}, $sx);
- my $py = FixMyStreet::Map::os_to_px($_->{northing}, $sy, 1);
- my $col = $_->{state} eq 'fixed' ? 'green' : 'red';
- $pins .= FixMyStreet::Map::display_pin($q, $px, $py, $col);
- }
-
- foreach (@$nearby) {
- my $px = FixMyStreet::Map::os_to_px($_->{easting}, $sx);
- my $py = FixMyStreet::Map::os_to_px($_->{northing}, $sy, 1);
- my $col = $_->{state} eq 'fixed' ? 'green' : 'red';
- $pins .= FixMyStreet::Map::display_pin($q, $px, $py, $col);
- }
-
- return ($pins, $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
-}
-
-# P is easting or northing
-# C is centre tile reference of displayed map
-sub os_to_px {
- my ($p, $c, $invert) = @_;
- return tile_to_px(os_to_tile($p), $c, $invert);
-}
-
-# Convert tile co-ordinates to pixel co-ordinates from top left of map
-# C is centre tile reference of displayed map
-sub tile_to_px {
- my ($p, $c, $invert) = @_;
- $p = TILE_WIDTH * ($p - $c + 1);
- $p = 2 * TILE_WIDTH - $p if $invert;
- $p = int($p + .5 * ($p <=> 0));
- return $p;
-}
-
-# Tile co-ordinates are linear scale of OS E/N
-# Will need more generalising when more zooms appear
-sub os_to_tile {
- return $_[0] / SCALE_FACTOR;
-}
-sub tile_to_os {
- return int($_[0] * SCALE_FACTOR + 0.5);
-}
-
-sub click_to_tile {
- my ($pin_tile, $pin, $invert) = @_;
- $pin -= TILE_WIDTH while $pin > TILE_WIDTH;
- $pin += TILE_WIDTH while $pin < 0;
- $pin = TILE_WIDTH - $pin if $invert; # image submits measured from top down
- return $pin_tile + $pin / TILE_WIDTH;
-}
-
-# Given some click co-ords (the tile they were on, and where in the
-# tile they were), convert to OSGB36 and return.
-sub click_to_os {
- my ($pin_tile_x, $pin_x, $pin_tile_y, $pin_y) = @_;
- my $tile_x = FixMyStreet::Map::click_to_tile($pin_tile_x, $pin_x);
- my $tile_y = FixMyStreet::Map::click_to_tile($pin_tile_y, $pin_y, 1);
- my $easting = FixMyStreet::Map::tile_to_os($tile_x);
- my $northing = FixMyStreet::Map::tile_to_os($tile_y);
- return ($easting, $northing);
-}
-
-# Given (E,N) and potential override (X,Y), return the X/Y tile for the centre
-# of the map (either to get the point near the middle, or the override X,Y),
-# and the pixel co-ords of the point, relative to that map.
-sub os_to_px_with_adjust {
- my ($q, $easting, $northing, $in_x, $in_y) = @_;
-
- my $x = FixMyStreet::Map::os_to_tile($easting);
- my $y = FixMyStreet::Map::os_to_tile($northing);
- my $x_tile = $in_x || int($x);
- my $y_tile = $in_y || int($y);
-
- # Try and have point near centre of map
- if (!$in_x && $x - $x_tile > 0.5) {
- $x_tile += 1;
- }
- if (!$in_y && $y - $y_tile > 0.5) {
- $y_tile += 1;
- }
-
- my $px = FixMyStreet::Map::os_to_px($easting, $x_tile);
- my $py = FixMyStreet::Map::os_to_px($northing, $y_tile, 1);
- if ($q->{site} eq 'barnet') { # Map is 380px, so might need to adjust
- if (!$in_x && $px > 380) {
- $x_tile++;
- $px = FixMyStreet::Map::os_to_px($easting, $x_tile);
- }
- if (!$in_y && $py > 380) {
- $y_tile--;
- $py = FixMyStreet::Map::os_to_px($northing, $y_tile, 1);
- }
- }
-
- return ($x_tile, $y_tile, $px, $py);
-}
-
-1;