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1 line
1.9 KiB
JavaScript
1 line
1.9 KiB
JavaScript
!function(){var t,n=document.createElement("pre"),h=document.createElement("canvas"),r=h.getContext("2d"),i={font:"Sans-serif",align:"left",color:"#000000",size:16,background:"rgba(0, 0, 0, 0)",stroke:0,strokeColor:"#FFFFFF",lineHeight:"1.2em",bold:!1,italic:!1};function s(t){t=String(t),n.innerText=t,n.setAttribute("style",this._style),document.body.append(n);var e=t.split("\n"),i=this.style.stroke,s=n.offsetHeight/e.length,l=.25*s;h.width=n.offsetWidth+2*i,h.height=n.offsetHeight,r.clearRect(0,0,h.width,h.height),r.fillStyle=this.style.background,r.beginPath(),r.fillRect(0,0,h.width,h.height),r.fill();var o="";switch(this.style.italic&&(o+="italic "),this.style.bold&&(o+="bold "),o+=this.style.size+"pt "+this.style.font,r.font=o,r.textAlign=this.style.align,r.lineWidth=this.style.stroke,r.strokeStyle=this.style.strokeColor,r.fillStyle=this.style.color,r.textAlign){case"center":i=h.width/2;break;case"right":i=h.width-i}e.forEach(function(t,e){this.style.stroke&&r.strokeText(t,i,s*(e+1)-l),r.fillText(t,i,s*(e+1)-l)}.bind(this)),document.body.removeChild(n)}window.TextImage=function(t){return this instanceof TextImage?(this.setStyle(t),this):new TextImage(t)},(t=window.TextImage.prototype).setStyle=function(t){for(var e in this.style=t||{},i)this.style[e]||(this.style[e]=i[e]);return this._style="font: ",this.style.italic&&(this._style+="italic "),this.style.bold&&(this._style+="bold "),this._style+=this.style.size+"pt "+this.style.font+";",this._style+="line-height:"+this.style.lineHeight+";",this._style+="text-align: "+this.style.align+";",this._style+="color: "+this.style.color+";",this._style+="background-color: "+this.style.background+";",this._style+=";padding: 0; display: block; position: fixed; top: 100%; overflow: hidden;",this},t.toDataURL=function(t){return t&&s.call(this,t),h.toDataURL()},t.toImage=function(t,e){s.call(this,t);var i=new Image;return e&&(i.onload=e),i.src=h.toDataURL(),i}}(); |