import { encodeSVGPath , SVGPathData , SVGPathDataTransformer } from 'svg-pathdata' ; import { Point } from './point' ; import { parseStyleConfig , postProcessElement , RenderContext , sketchPath } from '../utils' ; import { drawMarkers } from './marker' ; export function drawPath ( context , path , svgTransform ) { const dataAttrs = path . getAttribute ( 'd' ) ; const pathData = new SVGPathData ( dataAttrs ! ) . toAbs ( ) . transform ( SVGPathDataTransformer . NORMALIZE_HVZ ( ) ) . transform ( SVGPathDataTransformer . NORMALIZE_ST ( ) ) ; const transformedPathData = new SVGPathData ( pathData . commands . map ( cmd => Object . assign ( { } , cmd ) ) ) ; if ( svgTransform ) { transformedPathData . transform ( SVGPathDataTransformer . MATRIX ( svgTransform . matrix . a , svgTransform . matrix . b , svgTransform . matrix . c , svgTransform . matrix . d , svgTransform . matrix . e , svgTransform . matrix . f ) ) ; } const encodedPathData = encodeSVGPath ( transformedPathData . commands ) ; if ( encodedPathData . indexOf ( 'undefined' ) !== - 1 ) { console . error ( 'broken path data' ) ; return ; } postProcessElement ( context , path , sketchPath ( context , encodedPathData , parseStyleConfig ( context , path , svgTransform ) ) ) ; const points = [ ] ; let currentSubPathBegin ; pathData . commands . forEach ( cmd => { switch ( cmd . type ) { case SVGPathData . MOVE_TO : { const p = new Point ( cmd . x , cmd . y ) ; points . push ( p ) ; currentSubPathBegin = p ; break ; } case SVGPathData . LINE_TO : case SVGPathData . QUAD_TO : case SVGPathData . SMOOTH_QUAD_TO : case SVGPathData . CURVE_TO : case SVGPathData . SMOOTH_CURVE_TO : case SVGPathData . ARC : points . push ( new Point ( cmd . x , cmd . y ) ) ; break ; case SVGPathData . HORIZ_LINE_TO : points . push ( new Point ( cmd . x , 0 ) ) ; break ; case SVGPathData . VERT_LINE_TO : points . push ( new Point ( 0 , cmd . y ) ) ; break ; case SVGPathData . CLOSE_PATH : if ( currentSubPathBegin ) { points . push ( currentSubPathBegin ) ; } break ; } } ) ; drawMarkers ( context , path , points , svgTransform ) ; }