62 lines
2.1 KiB
JavaScript
62 lines
2.1 KiB
JavaScript
import React, { Component } from 'react';
|
|
import PropTypes from 'prop-types';
|
|
import { getFormattedColor, getStrokeWidth, denormalizeCoord } from '../helpers';
|
|
|
|
export default class TriangleDrawComponent extends Component {
|
|
shouldComponentUpdate(nextProps) {
|
|
const { version } = this.props;
|
|
return version !== nextProps.version;
|
|
}
|
|
|
|
getCoordinates() {
|
|
const { slideWidth, slideHeight, annotation } = this.props;
|
|
const { points } = annotation;
|
|
|
|
const xApex = ((points[2] - points[0]) / 2) + points[0];
|
|
const yApex = points[1];
|
|
|
|
const path = `M${denormalizeCoord(xApex, slideWidth)
|
|
},${denormalizeCoord(yApex, slideHeight)
|
|
},${denormalizeCoord(points[0], slideWidth)
|
|
},${denormalizeCoord(points[3], slideHeight)
|
|
},${denormalizeCoord(points[2], slideWidth)
|
|
},${denormalizeCoord(points[3], slideHeight)
|
|
}Z`;
|
|
|
|
return path;
|
|
}
|
|
|
|
render() {
|
|
const path = this.getCoordinates();
|
|
const { annotation, slideWidth } = this.props;
|
|
const { fill } = annotation;
|
|
return (
|
|
<path
|
|
style={{ WebkitTapHighlightColor: 'rgba(0, 0, 0, 0)' }}
|
|
fill={ fill ? getFormattedColor(annotation.color) : "none" }
|
|
stroke={getFormattedColor(annotation.color)}
|
|
d={path}
|
|
strokeWidth={getStrokeWidth(annotation.thickness, slideWidth)}
|
|
strokeLinejoin="miter"
|
|
data-test="drawnTriangle"
|
|
/>
|
|
);
|
|
}
|
|
}
|
|
|
|
TriangleDrawComponent.propTypes = {
|
|
// Defines a version of the shape, so that we know if we need to update the component or not
|
|
version: PropTypes.number.isRequired,
|
|
// Defines an annotation object, which contains all the basic info we need to draw a triangle
|
|
annotation: PropTypes.shape({
|
|
points: PropTypes.arrayOf(PropTypes.number).isRequired,
|
|
color: PropTypes.number.isRequired,
|
|
thickness: PropTypes.number.isRequired,
|
|
fill: PropTypes.bool.isRequired,
|
|
}).isRequired,
|
|
// Defines the width of the slide (svg coordinate system), which needed in calculations
|
|
slideWidth: PropTypes.number.isRequired,
|
|
// Defines the height of the slide (svg coordinate system), which needed in calculations
|
|
slideHeight: PropTypes.number.isRequired,
|
|
};
|