48 lines
965 B
JavaScript
48 lines
965 B
JavaScript
import Q from 'q';
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import javascript from './javascript/parser.js';
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export default class Parser {
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constructor() {
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this.state = {
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groupCounter: 1,
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renderCounter: 0,
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maxCounter: 0,
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cancelRender: false
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};
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}
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parse(expression) {
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var deferred = Q.defer();
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setTimeout(() => {
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javascript.Parser.SyntaxNode.state = this.state;
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this.parsed = javascript.parse(expression.replace(/\n/g, '\\n'));
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deferred.resolve(this);
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});
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return deferred.promise;
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}
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render(svg, padding) {
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svg.selectAll('g').remove();
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return this.parsed.render(svg.group())
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.then(result => {
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var box = result.getBBox();
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result.transform(Snap.matrix()
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.translate(padding - box.x, padding - box.y));
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svg.attr({
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width: box.width + padding * 2,
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height: box.height + padding * 2
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});
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});
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}
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cancel() {
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this.state.cancelRender = true;
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}
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}
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