== Description ==

This style is aimed to users who want to tag public transport routes and stops according to the [osmwiki:Proposed_features/Public_Transport public transport v2 scheme] in JOSM.

It has several features:
* grouping members of one `public_transport=stop_area` by same color
* showing differences in names of [osmwiki:Tag:public_transport%3Dstop_area stop area] members (namely `public_transport=stop_position` and `public_transport=platform`) and their respective `public_transport=stop_area`
* highlighting [osmwiki:Public_transport#Service_routes public transport route relations]
* mark `public_transport=stop_position` or `public_transport=platform` without `public_transport=stop_area` with a little warning icon


== Known limitations / bugs ==

* Because it is currently impossible to get the parent's `osm id` within MapCSS (see #15525), the style is using the parent's name for coloring its members. So, all `public_transport=stop_area` relations with the same name will have the same coloring. Zooming out should help to see if you are dealing with one stop area (the name will only be shown once) or more (the name will be shown more times).
* After applying the style and restarting JOSM, the selected way will frequently lose its red color after the user moves their mouse cursor away from the way.

== Changes ==

=== version 1.5 ===
* bugfix: selected ways should be shown with red color
* bugfix: routes are now colored following their `colour` tag
* added: properly show `stop_area` names if first child is area
* added: routes are only colored for zoom level >= 13

== Code ==
{{{
#!style type="mapcss"

meta 
{
    title: "Public Transport v2";
    description: "Highlight important information regarding public transport according to public transport version 2.";
    version: "1.5.[[revision]]_[[date]]";
    author: "Ialokim";
    link: "https://josm.openstreetmap.de/wiki/Styles/PublicTransportV2";
}

meta[lang=de]
{
    title: "Öffentlicher Verkehr v2";
    description: "Hebt wichtige Informationen des öffentlichen Verkehrs nach Public Transport Version 2 hervor.";
}

meta[lang=es]
{
    title: "Transporte Público v2";
    description: "Resalta informaciones importantes del transporte público acorde a Public Tranport Version 2.";
}


/*** Initial text properties ***/
way|z16-[public_transport=platform],
node|z16-[public_transport=platform],
node|z16-[public_transport=stop_position] {
	text-color: white;
	text-opacity: 1.0;
	font-size: 12;
	text-halo-radius: 3;
	text-halo-color: #000000;
	text-halo-opacity: 0.8;
	font-weight: bold;
}


/*** public_transport=platform ***/
/* unclosed way design > tagging error! */
way|z16-[public_transport=platform]!:closed{
	width: 10;
	dashes: none;
	color: #ffffff;
	opacity: 1.0;
	text-position: line
}

/* area design */
area|z16-[public_transport=platform]{
	width: 3;
	color: #ffffff;
	fill-color: #ffffff;
	fill-opacity: 0.3;
	text-position: center;
	font-weight: bold;
}

/* node design */
node|z16-[public_transport=platform] {
	icon-image: "warning-small.svg";
	text-anchor-horizontal: right;
	text-anchor-vertical: center;
	text-offset-x: 5;
	text: "";
	object-z-index: 1.0;
}

/* node halo design */
node|z16-[public_transport=platform]::halo {
	icon-image: none;
	symbol-shape: square;
	symbol-fill-color: white;
	symbol-size: 18;
}
node|z19-[public_transport=platform]::halo {
	object-z-index:-1.0;
}



/*** public_transport=stop_position ***/
/* node design */
node|z16-[public_transport=stop_position] {
	icon-image: none;
	text-anchor-horizontal: center;
	text-anchor-vertical: center;
	text: "";
	object-z-index: 1.0;
}
node|z19-[public_transport=stop_position] {
	icon-image: "warning-small.svg";
	text-anchor-horizontal: right;
	text-offset-x: 5;
}

/* node halo design */
node|z16-[public_transport=stop_position]::halo {
	icon-image: none;
	symbol-shape: square;
	symbol-fill-color: white;
	symbol-size: 18;
}
node|z19-[public_transport=stop_position]::halo {
	object-z-index:-1.0;
}




/*** public_transport=stop_area ***/
/* unclosed way design > tagging error! */
relation|z16-[public_transport=stop_area] > way!:closed {
	dashes: 10,10;
	dashes-background-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.7);
}
relation|z16-[public_transport=stop_area] > way!:closed:selected {
	dashes-background-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.5);
}

/* area design */
relation|z16-[public_transport=stop_area] > area {
	color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.7);
}
relation|z16-[public_transport=stop_area] > area:selected {
	color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.5);
}

/* node design */
relation[public_transport=stop_area] >[index!=1] node|z16-18 {
	text: "";
}
relation[public_transport=stop_area] >[index=1] node|z16-18 {
	text: parent_tag(name);
}
relation[public_transport=stop_area] >[index=1] area|z15-18 {
	text: parent_tag(name);
	text-position: center;
	text-color: white;
	text-opacity: 1.0;
	font-size: 12;
	text-halo-radius: 3;
	text-halo-color: #000000;
	text-halo-opacity: 0.8;
	font-weight: bold;
}
relation[public_transport=stop_area] > node|z19-20[public_transport=stop_position] {
	text: "";
}
relation[public_transport=stop_area] > node|z19-[public_transport=platform],
relation[public_transport=stop_area] > node|z21-[public_transport=stop_position] {
	text: cond(tag(name)==parent_tag(name),tag(name),concat(tag(name), " / ", parent_tag(name)));
}
relation[public_transport=stop_area] >[index=1] node|z16-18,
relation[public_transport=stop_area] > node|z19-[public_transport=platform],
relation[public_transport=stop_area] > node|z21-[public_transport=stop_position],
relation[public_transport=stop_area] > area|z16- {
	text-halo-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.7);
}
relation[public_transport=stop_area] >[index=1] node|z16-18,
relation[public_transport=stop_area] > node|z19-[public_transport=platform]:selected,
relation[public_transport=stop_area] > node|z21-[public_transport=stop_position]:selected,
relation[public_transport=stop_area] > area|z16-:selected {
	text-halo-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.5);
}

/* node halo design */
relation[public_transport=stop_area] > node|z16-::halo {
	symbol-fill-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.7);
}
relation[public_transport=stop_area] > node|z16-:selected::halo {
	symbol-fill-color: hsb_color(CRC32_checksum(parent_tag("name"))/4294967296.0, 0.9, 0.5);
}

/* node design for transport vehicles (only if has relation) */
relation[public_transport=stop_area] > node|z16-18[public_transport=stop_position],
relation[public_transport=stop_area] > node|z16-18[public_transport=platform] {
	icon-image: none;
}
relation[public_transport=stop_area] > node|z19-[public_transport=stop_position][bus=yes] {
	icon-image: "presets/transport/bus.svg";
}
relation[public_transport=stop_area] > node|z19-[public_transport=stop_position][tram=yes] {
	icon-image: "presets/transport/tram.svg";
}
relation[public_transport=stop_area] > node|z19-[public_transport=stop_position][light_rail=yes] {
	icon-image: "presets/transport/railway/light_rail.svg";
}
relation[public_transport=stop_area] > node|z19-[public_transport=stop_position][subway=yes] {
	icon-image: "presets/transport/railway/subway.svg";
}
relation[public_transport=stop_area] > node|z19-[public_transport=stop_position][train=yes] {
	icon-image: "presets/transport/train.svg";
}
relation[public_transport=stop_area] > node|z19-[public_transport=platform] {
	icon-image: "presets/transport/platform.svg";
}


/*** Route relations ***/
relation[type=route][route=bus] > way|z13-::halo,
relation[type=route][route=tram] > way|z13-::halo,
relation[type=route][route=light_rail] > way|z13-::halo,
relation[type=route][route=subway] > way|z13-::halo,
relation[type=route][route=train] > way|z13-::halo {
	object-z-index: -1.0;
	color: parent_tag(colour);
	width: 16;
	opacity: 0.5;
	linecap: round;
	linejoin: round;
	text-color: parent_tag(colour);
	font-size: 18;
	text: parent_tag(ref);
	text-position: line;
	text-offset-y: 20;
}
relation[type=route] > way:selected,
relation[type=route][route=tram] > way:selected,
relation[type=route][route=light_rail] > way:selected,
relation[type=route][route=subway] > way:selected,
relation[type=route][route=train] > way:selected {
	color: red;
}

}}}