| 95 | const applyQCompat = require("./qPolyfill"); |
| 96 | |
| 97 | function textStyle(layer) { |
| 98 | let keywords = []; |
| 99 | let style = ""; |
| 100 | |
| 101 | if (!isEmpty(layer.text_style)) { |
| 102 | return layer.text_style; |
| 103 | } |
| 104 | Object.keys(LAYER_KEYWORD_PARAMS).forEach((attr) => { |
| 105 | let default_value = LAYER_KEYWORD_PARAMS[attr]; |
| 106 | let attr_value = layer[attr] || default_value; |
| 107 | if (attr_value !== default_value) { |
| 108 | keywords.push(attr_value); |
| 109 | } |
| 110 | }); |
| 111 | |
| 112 | Object.keys(layer).forEach((attr) => { |
| 113 | if (attr === "letter_spacing" || attr === "line_spacing") { |
| 114 | keywords.push(`${attr}_${layer[attr]}`); |
| 115 | } |
| 116 | if (attr === "font_hinting") { |
| 117 | keywords.push(`${attr.split("_").pop()}_${layer[attr]}`); |
| 118 | } |
| 119 | if (attr === "font_antialiasing") { |
| 120 | keywords.push(`antialias_${layer[attr]}`); |
| 121 | } |
| 122 | }); |
| 123 | |
| 124 | if (layer.hasOwnProperty("font_size" || "font_family") || !isEmpty(keywords)) { |
| 125 | if (!layer.font_size) throw new Error('Must supply font_size for text in overlay/underlay'); |
| 126 | if (!layer.font_family) throw new Error('Must supply font_family for text in overlay/underlay'); |
| 127 | keywords.unshift(layer.font_size); |
| 128 | keywords.unshift(layer.font_family); |
| 129 | style = compact(keywords).join("_"); |
| 130 | } |
| 131 | return style; |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Normalize an expression string, replace "nice names" with their coded values and spaces with "_" |