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MapLibreParticleLab/src/mbgl/style/layers/layer.cpp.ejs
2020-04-14 22:30:40 +03:00

350 lines
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<%
const type = locals.type;
const layoutProperties = locals.layoutProperties;
const paintProperties = locals.paintProperties;
const allProperties = paintProperties.concat(layoutProperties);
-%>
// clang-format off
// This file is generated. Edit scripts/generate-style-code.js, then run `make style-code`.
#include <mbgl/style/layers/<%- type.replace(/-/g, '_') %>_layer.hpp>
#include <mbgl/style/layers/<%- type.replace(/-/g, '_') %>_layer_impl.hpp>
#include <mbgl/style/layer_observer.hpp>
#include <mbgl/style/conversion/color_ramp_property_value.hpp>
#include <mbgl/style/conversion/constant.hpp>
#include <mbgl/style/conversion/property_value.hpp>
#include <mbgl/style/conversion/transition_options.hpp>
#include <mbgl/style/conversion/json.hpp>
#include <mbgl/style/conversion_impl.hpp>
#include <mbgl/util/traits.hpp>
#include <mapbox/eternal.hpp>
namespace mbgl {
namespace style {
<%
let layerCapabilities = {};
let defaults = { caps: { 'Source': 'NotRequired',
'Pass3D': 'NotRequired',
'Layout': 'NotRequired',
'FadingTiles': 'NotRequired',
'CrossTileIndex': 'NotRequired',
'TileKind' : 'NotRequired'
},
require: function(cap) {
let copy = Object.assign({}, this);
copy.caps = Object.assign({}, this.caps);
copy.caps[cap] = 'Required';
return copy;
},
set: function(cap, value) {
let copy = Object.assign({}, this);
copy.caps = Object.assign({}, this.caps);
copy.caps[cap] = value;
return copy;
},
finalize: function() {
return Object.keys(this.caps).reduce((acc, key) => {
acc.push(`${key}::${this.caps[key]}`);
return acc;
}, []);
}
};
layerCapabilities['background'] = defaults.finalize();
layerCapabilities['fill'] = defaults.require('Source')
.require('Layout')
.set('TileKind', 'Geometry')
.finalize();
layerCapabilities['fill-extrusion'] = defaults.require('Source')
.require('Pass3D')
.require('Layout')
.set('TileKind', 'Geometry')
.finalize();
layerCapabilities['hillshade'] = defaults.require('Source')
.require('Pass3D')
.set('TileKind', 'RasterDEM')
.finalize();
layerCapabilities['symbol'] = defaults.require('Source')
.require('Layout')
.require('FadingTiles')
.require('CrossTileIndex')
.set('TileKind', 'Geometry')
.finalize();
layerCapabilities['circle'] = defaults.require('Source')
.require('Layout')
.set('TileKind', 'Geometry')
.finalize();
layerCapabilities['line'] = layerCapabilities['fill'];
layerCapabilities['heatmap'] = defaults.require('Source')
.require('Pass3D')
.set('TileKind', 'Geometry')
.finalize();
layerCapabilities['raster'] = defaults.require('Source').set('TileKind', 'Raster').finalize();
layerCapabilities['location-indicator'] = defaults.finalize();
// Splits lines that are over 120 characters at the firts occurance of '='.
const split120Line = line => {
const ident = ' ';
if (line.length + ident.length > 120) {
return line.replace('=', `=\n${ident}`);
}
return line;
};
%>
// static
const LayerTypeInfo* <%- camelize(type) %>Layer::Impl::staticTypeInfo() noexcept {
const static LayerTypeInfo typeInfo{"<%- type %>",
<%-`${layerCapabilities[type].map(cap => `LayerTypeInfo::${cap}`).join(',\n ')}` %>};
return &typeInfo;
}
<% if ((type === 'background') || (type === 'location-indicator')) { -%>
<%- camelize(type) %>Layer::<%- camelize(type) %>Layer(const std::string& layerID)
: Layer(makeMutable<Impl>(layerID, std::string())) {
}
<% } else { -%>
<%- camelize(type) %>Layer::<%- camelize(type) %>Layer(const std::string& layerID, const std::string& sourceID)
: Layer(makeMutable<Impl>(layerID, sourceID)) {
}
<% } -%>
<%- camelize(type) %>Layer::<%- camelize(type) %>Layer(Immutable<Impl> impl_)
: Layer(std::move(impl_)) {
}
<%- camelize(type) %>Layer::~<%- camelize(type) %>Layer() = default;
const <%- camelize(type) %>Layer::Impl& <%- camelize(type) %>Layer::impl() const {
return static_cast<const Impl&>(*baseImpl);
}
Mutable<<%- camelize(type) %>Layer::Impl> <%- camelize(type) %>Layer::mutableImpl() const {
return makeMutable<Impl>(impl());
}
std::unique_ptr<Layer> <%- camelize(type) %>Layer::cloneRef(const std::string& id_) const {
auto impl_ = mutableImpl();
impl_->id = id_;
impl_->paint = <%- camelize(type) %>PaintProperties::Transitionable();
return std::make_unique<<%- camelize(type) %>Layer>(std::move(impl_));
}
<% if (layoutProperties.length) { -%>
void <%- camelize(type) %>Layer::Impl::stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>& writer) const {
layout.stringify(writer);
}
<% } else { -%>
void <%- camelize(type) %>Layer::Impl::stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const {
}
<% } -%>
// Layout properties
<% for (const property of layoutProperties) { -%>
<%- propertyValueType(property) %> <%- camelize(type) %>Layer::getDefault<%- camelize(property.name) %>() {
return <%- camelize(property.name) %>::defaultValue();
}
const <%- propertyValueType(property) %>& <%- camelize(type) %>Layer::get<%- camelize(property.name) %>() const {
return impl().layout.get<<%- camelize(property.name) %>>();
}
void <%- camelize(type) %>Layer::set<%- camelize(property.name) %>(const <%- propertyValueType(property) %>& value) {
if (value == get<%- camelize(property.name) %>()) return;
auto impl_ = mutableImpl();
impl_->layout.get<<%- camelize(property.name) %>>() = value;
baseImpl = std::move(impl_);
observer->onLayerChanged(*this);
}
<% } -%>
// Paint properties
<% for (const property of paintProperties) { %>
<%- propertyValueType(property) %> <%- camelize(type) %>Layer::getDefault<%- camelize(property.name) %>() {
<% if (property.name === 'heatmap-color') { -%>
conversion::Error error;
std::string rawValue = R"JSON(<%- JSON.stringify(property.default) %>)JSON";
return *conversion::convertJSON<<%- propertyValueType(property)%>>(rawValue, error);
<% } else { -%>
return {<%- defaultValue(property) %>};
<% } -%>
}
const <%- propertyValueType(property) %>& <%- camelize(type) %>Layer::get<%- camelize(property.name) %>() const {
return impl().paint.template get<<%- camelize(property.name) %>>().value;
}
void <%- camelize(type) %>Layer::set<%- camelize(property.name) %>(const <%- propertyValueType(property) %>& value) {
if (value == get<%- camelize(property.name) %>())
return;
auto impl_ = mutableImpl();
impl_->paint.template get<<%- camelize(property.name) %>>().value = value;
<% if (property.name === 'line-width') { -%>
impl_->paint.template get<LineFloorWidth>().value = value;
<% } -%>
baseImpl = std::move(impl_);
observer->onLayerChanged(*this);
}
void <%- camelize(type) %>Layer::set<%- camelize(property.name) %>Transition(const TransitionOptions& options) {
auto impl_ = mutableImpl();
impl_->paint.template get<<%- camelize(property.name) %>>().options = options;
baseImpl = std::move(impl_);
}
TransitionOptions <%- camelize(type) %>Layer::get<%- camelize(property.name) %>Transition() const {
return impl().paint.template get<<%- camelize(property.name) %>>().options;
}
<% } -%>
using namespace conversion;
namespace {
constexpr uint8_t kPaintPropertyCount = <%- paintProperties.length * 2 -%>u;
enum class Property : uint8_t {
<% for (const property of paintProperties) { -%>
<%- camelize(property.name) %>,
<% } -%>
<% for (const property of paintProperties) { -%>
<%- camelize(property.name) %>Transition,
<% } -%>
<% for (let i = 0; i < layoutProperties.length; ++i) { -%>
<% if (i===0) { -%>
<%- camelize(layoutProperties[i].name) %> = kPaintPropertyCount,
<% } else { -%>
<%- camelize(layoutProperties[i].name) %>,
<% } -%>
<% } -%>
};
template <typename T>
constexpr uint8_t toUint8(T t) noexcept {
return uint8_t(mbgl::underlying_type(t));
}
MAPBOX_ETERNAL_CONSTEXPR const auto layerProperties = mapbox::eternal::hash_map<mapbox::eternal::string, uint8_t>(
{<%- paintProperties.map(p => `{"${p.name}", toUint8(Property::${camelize(p.name)})}`).join(',\n ') %>,
<% if (!layoutProperties.length) { -%>
<%- paintProperties.map(p => `{"${p.name}-transition", toUint8(Property::${camelize(p.name)}Transition)}`).join(',\n ') %>});
<% } else { -%>
<%- paintProperties.map(p => `{"${p.name}-transition", toUint8(Property::${camelize(p.name)}Transition)}`).join(',\n ') %>,
<%- layoutProperties.map(p => `{"${p.name}", toUint8(Property::${camelize(p.name)})}`).join(',\n ') %>});
<% } -%>
StyleProperty getLayerProperty(const <%- camelize(type) %>Layer& layer, Property property) {
switch (property) {
<% for (const property of paintProperties) { -%>
case Property::<%- camelize(property.name) %>:
return makeStyleProperty(layer.get<%- camelize(property.name) %>());
<% } -%>
<% for (const property of paintProperties) { -%>
case Property::<%- camelize(property.name) %>Transition:
return makeStyleProperty(layer.get<%- camelize(property.name) %>Transition());
<% } -%>
<% for (const property of layoutProperties) { -%>
case Property::<%- camelize(property.name) %>:
return makeStyleProperty(layer.get<%- camelize(property.name) %>());
<% } -%>
}
return {};
}
StyleProperty getLayerProperty(const <%- camelize(type) -%>Layer& layer, const std::string& name) {
const auto it = layerProperties.find(name.c_str());
if (it == layerProperties.end()) {
return {};
}
return getLayerProperty(layer, static_cast<Property>(it->second));
}
} // namespace
Value <%- camelize(type) %>Layer::serialize() const {
auto result = Layer::serialize();
assert(result.getObject());
for (const auto& property : layerProperties) {
auto styleProperty = getLayerProperty(*this, static_cast<Property>(property.second));
if (styleProperty.getKind() == StyleProperty::Kind::Undefined) continue;
serializeProperty(result, styleProperty, property.first.c_str(), property.second < kPaintPropertyCount);
}
return result;
}
optional<Error> <%- camelize(type) %>Layer::setPropertyInternal(const std::string& name, const Convertible& value) {
const auto it = layerProperties.find(name.c_str());
if (it == layerProperties.end()) return Error{"layer doesn't support this property"};
auto property = static_cast<Property>(it->second);
<%
const conversions = {};
for (const property of allProperties) {
const dataDriven = property['property-type'] === 'data-driven' || property['property-type'] === 'cross-faded-data-driven';
const convertTokens = property.name === 'icon-image' || property.name === 'text-field';
const conversion = `const auto& typedValue = convert<${propertyValueType(property)}>(value, error, ${dataDriven}, ${convertTokens})`;
conversions[conversion] = conversions[conversion] || [];
conversions[conversion].push(property);
}
const reduceConditions = (total, e) => {
const splitter = ' || ';
const ident = ' ';
let totalLength = total.length + e.length + ident.length + splitter.length + 3 /* ||*/;
const lastCR = total.lastIndexOf('\n');
const length = (lastCR == -1) ? totalLength : (totalLength - (ident.length + lastCR));
return total + (length <= 120 ? splitter : ` ||\n${ident}`) + e;
}
-%>
<% for (const key in conversions) {
const properties = conversions[key];
-%>
if (<%- properties.map(p => `property == Property::${camelize(p.name)}`).reduce(reduceConditions) %>) {
Error error;
<%- split120Line(key) %>;
if (!typedValue) {
return error;
}
<% if (properties.length == 1) { %>
set<%- camelize(properties[0].name) %>(*typedValue);
return nullopt;
<% } else for (const property of properties) { %>
if (property == Property::<%- camelize(property.name) %>) {
set<%- camelize(property.name) %>(*typedValue);
return nullopt;
}
<% } -%>
}
<% } %>
Error error;
optional<TransitionOptions> transition = convert<TransitionOptions>(value, error);
if (!transition) {
return error;
}
<% for (const property of paintProperties) { %>
if (property == Property::<%- camelize(property.name) %>Transition) {
set<%- camelize(property.name) %>Transition(*transition);
return nullopt;
}
<% } %>
return Error{"layer doesn't support this property"};
}
StyleProperty <%- camelize(type) %>Layer::getProperty(const std::string& name) const {
return getLayerProperty(*this, name);
}
Mutable<Layer::Impl> <%- camelize(type) %>Layer::mutableBaseImpl() const {
return staticMutableCast<Layer::Impl>(mutableImpl());
}
} // namespace style
} // namespace mbgl
// clang-format on