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#!/usr/bin/env node
'use strict';
const fs = require('fs');
const ejs = require('ejs');
const spec = require('./style-spec');
const colorParser = require('csscolorparser');
require('./style-code');
function parseCSSColor(str) {
const color = colorParser.parseCSSColor(str);
return [
color[0] / 255 * color[3], color[1] / 255 * color[3], color[2] / 255 * color[3], color[3]
];
}
global.isLightProperty = function (property) {
return property['light-property'] === true;
};
global.evaluatedType = function (property) {
if (/-translate-anchor$/.test(property.name)) {
return 'TranslateAnchorType';
}
if (/-(rotation|pitch|illumination)-alignment$/.test(property.name)) {
return 'AlignmentType';
}
if (/^(text|icon)-anchor$/.test(property.name)) {
return 'SymbolAnchorType';
}
if (/position/.test(property.name)) {
return 'Position';
}
switch (property.type) {
case 'boolean':
return 'bool';
case 'number':
return 'float';
case 'formatted':
case 'string':
return 'std::string';
case 'enum':
return (isLightProperty(property) ? 'Light' : '') + `${camelize(property.name)}Type`;
case 'color':
return `Color`;
case 'array':
if (property.length) {
return `std::array<${evaluatedType({type: property.value})}, ${property.length}>`;
} else {
return `std::vector<${evaluatedType({type: property.value})}>`;
}
default: throw new Error(`unknown type for ${property.name}`)
}
};
function attributeUniformType(property, type) {
const attributeNameExceptions = {
'text-opacity': 'opacity',
'icon-opacity': 'opacity',
'text-color': 'fill_color',
'icon-color': 'fill_color',
'text-halo-color': 'halo_color',
'icon-halo-color': 'halo_color',
'text-halo-blur': 'halo_blur',
'icon-halo-blur': 'halo_blur',
'text-halo-width': 'halo_width',
'icon-halo-width': 'halo_width',
'line-gap-width': 'gapwidth'
}
const name = attributeNameExceptions[property.name] ||
property.name.replace(type + '-', '').replace(/-/g, '_');
return `attributes::a_${name}${name === 'offset' ? '<1>' : ''}, uniforms::u_${name}`;
}
global.layoutPropertyType = function (property) {
switch (property['property-type']) {
case 'data-driven':
case 'cross-faded-data-driven':
return `DataDrivenLayoutProperty<${evaluatedType(property)}>`;
default:
return `LayoutProperty<${evaluatedType(property)}>`;
}
};
global.paintPropertyType = function (property, type) {
switch (property['property-type']) {
case 'data-driven':
case 'cross-faded-data-driven':
return `DataDrivenPaintProperty<${evaluatedType(property)}, ${attributeUniformType(property, type)}>`;
case 'cross-faded':
return `CrossFadedPaintProperty<${evaluatedType(property)}>`;
default:
return `PaintProperty<${evaluatedType(property)}>`;
}
};
global.propertyValueType = function (property) {
switch (property['property-type']) {
case 'color-ramp':
return `ColorRampPropertyValue`;
default:
return `PropertyValue<${evaluatedType(property)}>`;
}
};
global.defaultValue = function (property) {
// https://github.com/mapbox/mapbox-gl-native/issues/5258
if (property.name === 'line-round-limit') {
return 1;
}
if (property.name === 'fill-outline-color') {
return '{}';
}
if (property.name === 'heatmap-color') {
return '{}';
}
switch (property.type) {
case 'number':
return property.default;
case 'formatted':
case 'string':
return JSON.stringify(property.default || "");
case 'enum':
if (property.default === undefined) {
return `${evaluatedType(property)}::Undefined`;
} else {
return `${evaluatedType(property)}::${camelize(property.default)}`;
}
case 'color':
const color = parseCSSColor(property.default).join(', ');
switch (color) {
case '0, 0, 0, 0':
return '{}';
case '0, 0, 0, 1':
return 'Color::black()';
case '1, 1, 1, 1':
return 'Color::white()';
default:
return `{ ${color} }`;
}
case 'array':
const defaults = (property.default || []).map((e) => defaultValue({ type: property.value, default: e }));
if (property.length) {
return `{{ ${defaults.join(', ')} }}`;
} else {
return `{ ${defaults.join(', ')} }`;
}
default:
return property.default;
}
};
const layerHpp = ejs.compile(fs.readFileSync('include/mbgl/style/layers/layer.hpp.ejs', 'utf8'), {strict: true});
const layerCpp = ejs.compile(fs.readFileSync('src/mbgl/style/layers/layer.cpp.ejs', 'utf8'), {strict: true});
const propertiesHpp = ejs.compile(fs.readFileSync('src/mbgl/style/layers/layer_properties.hpp.ejs', 'utf8'), {strict: true});
const propertiesCpp = ejs.compile(fs.readFileSync('src/mbgl/style/layers/layer_properties.cpp.ejs', 'utf8'), {strict: true});
const layers = Object.keys(spec.layer.type.values).map((type) => {
const layoutProperties = Object.keys(spec[`layout_${type}`]).reduce((memo, name) => {
if (name !== 'visibility') {
spec[`layout_${type}`][name].name = name;
memo.push(spec[`layout_${type}`][name]);
}
return memo;
}, []);
const paintProperties = Object.keys(spec[`paint_${type}`]).reduce((memo, name) => {
spec[`paint_${type}`][name].name = name;
memo.push(spec[`paint_${type}`][name]);
return memo;
}, []);
return {
type: type,
layoutProperties: layoutProperties,
paintProperties: paintProperties,
doc: spec.layer.type.values[type].doc,
layoutPropertiesByName: spec[`layout_${type}`],
paintPropertiesByName: spec[`paint_${type}`],
};
});
for (const layer of layers) {
const layerFileName = layer.type.replace('-', '_');
writeIfModified(`include/mbgl/style/layers/${layerFileName}_layer.hpp`, layerHpp(layer));
writeIfModified(`src/mbgl/style/layers/${layerFileName}_layer.cpp`, layerCpp(layer));
writeIfModified(`src/mbgl/style/layers/${layerFileName}_layer_properties.hpp`, propertiesHpp(layer));
writeIfModified(`src/mbgl/style/layers/${layerFileName}_layer_properties.cpp`, propertiesCpp(layer));
}
// Light
const lightProperties = Object.keys(spec[`light`]).reduce((memo, name) => {
var property = spec[`light`][name];
property.name = name;
property['light-property'] = true;
memo.push(property);
return memo;
}, []);
const lightHpp = ejs.compile(fs.readFileSync('include/mbgl/style/light.hpp.ejs', 'utf8'), {strict: true});
const lightCpp = ejs.compile(fs.readFileSync('src/mbgl/style/light.cpp.ejs', 'utf8'), {strict: true});
writeIfModified(`include/mbgl/style/light.hpp`, lightHpp({properties: lightProperties}));
writeIfModified(`src/mbgl/style/light.cpp`, lightCpp({properties: lightProperties}));
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