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'use strict';
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var isArray = require('./helpers').isArray;
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function typeName(bold, italics) {
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var type = 'normal';
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if (bold && italics) {
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type = 'bolditalics';
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} else if (bold) {
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type = 'bold';
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} else if (italics) {
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type = 'italics';
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}
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return type;
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}
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function FontProvider(fontDescriptors, pdfKitDoc) {
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this.fonts = {};
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this.pdfKitDoc = pdfKitDoc;
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this.fontCache = {};
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for (var font in fontDescriptors) {
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if (fontDescriptors.hasOwnProperty(font)) {
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var fontDef = fontDescriptors[font];
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this.fonts[font] = {
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normal: fontDef.normal,
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bold: fontDef.bold,
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italics: fontDef.italics,
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bolditalics: fontDef.bolditalics
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};
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}
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}
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}
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FontProvider.prototype.getFontType = function (bold, italics) {
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return typeName(bold, italics);
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}
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FontProvider.prototype.getFontFile = function (familyName, bold, italics) {
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var type = this.getFontType(bold, italics);
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if (!this.fonts[familyName] || !this.fonts[familyName][type]) {
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return null;
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}
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return this.fonts[familyName][type];
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}
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FontProvider.prototype.provideFont = function (familyName, bold, italics) {
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var type = this.getFontType(bold, italics);
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if (this.getFontFile(familyName, bold, italics) === null) {
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throw new Error('Font \'' + familyName + '\' in style \'' + type + '\' is not defined in the font section of the document definition.');
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}
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this.fontCache[familyName] = this.fontCache[familyName] || {};
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if (!this.fontCache[familyName][type]) {
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var def = this.fonts[familyName][type];
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if (!isArray(def)) {
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def = [def];
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}
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this.fontCache[familyName][type] = this.pdfKitDoc.font.apply(this.pdfKitDoc, def)._font;
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}
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return this.fontCache[familyName][type];
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};
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module.exports = FontProvider;
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