5917d2b035
This change will reduce the number of calls to this.container.getBBox when calculating the bounding box of a node
63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
import _ from 'lodash';
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export default {
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type: 'subexp',
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definedProperties: {
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_anchor: {
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get: function() {
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var anchor = this.regexp.getBBox(),
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matrix = this.transform().localMatrix;
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return {
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ax: matrix.x(anchor.ax, anchor.ay),
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ax2: matrix.x(anchor.ax2, anchor.ay),
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ay: matrix.y(anchor.ax, anchor.ay)
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};
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}
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}
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},
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labelMap: {
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'?:': '',
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'?=': 'positive lookahead',
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'?!': 'negative lookahead'
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},
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_render() {
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// NOTE: this.label() MUST be called here, in _render and before any child
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// nodes are rendered. This is to keep the group numbers in the correct
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// order.
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var label = this.label();
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return this.regexp.render(this.container.group())
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.then(() => {
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return this.renderLabeledBox(label, this.regexp, {
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padding: 10
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});
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});
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},
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label() {
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if (typeof this._label === 'undefined') {
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if (_.has(this.labelMap, this.properties.capture.textValue)) {
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this._label = this.labelMap[this.properties.capture.textValue];
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} else {
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this._label = 'group #' + (this.state.groupCounter++);
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}
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}
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return this._label;
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},
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setup() {
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// NOTE: DO NOT call this.label() in setup. It will lead to groups being
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// numbered in reverse order
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this.regexp = this.properties.regexp;
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if (this.properties.capture.textValue == '?:') {
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this.proxy = this.regexp;
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}
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}
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};
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