react-canvas-draw/umd/react-canvas-draw.min.js

A simple yet powerful canvas-drawing component for React.

/*!
 * react-canvas-draw v1.2.1 - https://embiem.github.io/react-canvas-draw/
 * MIT Licensed
 */
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v({scaleExtents:t.zoomExtents,documentSize:{width:t.canvasWidth,height:t.canvasHeight}}),n.coordSystem.attachViewChangeListener(n.applyView.bind(L(n))),n}n=e,(t=i).prototype=Object.create(n.prototype),t.prototype.constructor=t,t.__proto__=n;var c=i.prototype;return c.componentDidMount=function(){var e,t=this;this.lazy=new a.LazyBrush({radius:this.props.lazyRadius*window.devicePixelRatio,enabled:!0,initialPoint:{x:window.innerWidth/2,y:window.innerHeight/2}}),this.chainLength=this.props.lazyRadius*window.devicePixelRatio,this.canvasObserver=new s.a((function(e,n){return t.handleCanvasResize(e,n)})),this.canvasObserver.observe(this.canvasContainer),this.drawImage(),this.loop(),window.setTimeout((function(){var e=window.innerWidth/2,n=window.innerHeight/2;t.lazy.update({x:e-t.chainLength/4,y:n},{both:!0}),t.lazy.update({x:e+t.chainLength/4,y:n},{both:!1}),t.mouseHasMoved=!0,t.valuesChanged=!0,t.clearExceptErasedLines(),t.props.saveData&&t.loadSaveData(t.props.saveData)}),100),this.canvas.interface&&this.canvas.interface.addEventListener("wheel",this.handleWheel,E?{passive:e}:e)},c.componentDidUpdate=function(e){e.lazyRadius!==this.props.lazyRadius&&(this.chainLength=this.props.lazyRadius*window.devicePixelRatio,this.lazy.setRadius(this.props.lazyRadius*window.devicePixelRatio)),e.saveData!==this.props.saveData&&this.loadSaveData(this.props.saveData),JSON.stringify(e)!==JSON.stringify(this.props)&&(this.valuesChanged=!0),this.coordSystem.scaleExtents=this.props.zoomExtents,this.props.enablePanAndZoom||this.coordSystem.resetView(),e.imgSrc!==this.props.imgSrc&&this.drawImage()},c.render=function(){var e=this;return r.a.createElement("div",{className:this.props.className,style:R({display:"block",background:this.props.backgroundColor,touchAction:"none",width:this.props.canvasWidth,height:this.props.canvasHeight},this.props.style),ref:function(t){t&&(e.canvasContainer=t)}},A.map((function(t){var n="interface"===t;return r.a.createElement("canvas",{key:t,ref:function(i){i&&(e.canvas[t]=i,e.ctx[t]=i.getContext("2d"),n&&(e.coordSystem.canvas=i))},style:R({},W),onMouseDown:n?e.handleDrawStart:void 0,onMouseMove:n?e.handleDrawMove:void 0,onMouseUp:n?e.handleDrawEnd:void 0,onMouseOut:n?e.handleDrawEnd:void 0,onTouchStart:n?e.handleDrawStart:void 0,onTouchMove:n?e.handleDrawMove:void 0,onTouchEnd:n?e.handleDrawEnd:void 0,onTouchCancel:n?e.handleDrawEnd:void 0})})))},i}(i.PureComponent);z(V,"defaultProps",{onChange:null,loadTimeOffset:5,lazyRadius:12,brushRadius:10,brushColor:"#444",catenaryColor:"#0a0302",gridColor:"rgba(150,150,150,0.17)",backgroundColor:"#FFF",hideGrid:!1,canvasWidth:400,canvasHeight:400,disabled:!1,imgSrc:"",saveData:"",immediateLoading:!1,hideInterface:!1,gridSizeX:25,gridSizeY:25,gridLineWidth:.5,hideGridX:!1,hideGridY:!1,enablePanAndZoom:!1,mouseZoomFactor:.01,zoomExtents:{min:.33,max:3},clampLinesToDocument:!1})}]).default}));
//# sourceMappingURL=react-canvas-draw.min.js.map