3db5fc2f12
dash-stack orginally was tought as Python Flask project. After some heatet argument and strong considiration we have decided to move the project to Django. This commit is the initial commit for moving project to Django. Change-Id: Id28e3cf1dafbed7dd647b1020376bae893f5c3a2 Signed-off-by: Paarhati Ozkasgarli <ozkasgarli@gmail.com>
1 line
3.7 KiB
JavaScript
1 line
3.7 KiB
JavaScript
(function($){var options={canvas:true};var render,getTextInfo,addText;var hasOwnProperty=Object.prototype.hasOwnProperty;function init(plot,classes){var Canvas=classes.Canvas;if(render==null){getTextInfo=Canvas.prototype.getTextInfo,addText=Canvas.prototype.addText,render=Canvas.prototype.render}Canvas.prototype.render=function(){if(!plot.getOptions().canvas){return render.call(this)}var context=this.context,cache=this._textCache;context.save();context.textBaseline="middle";for(var layerKey in cache){if(hasOwnProperty.call(cache,layerKey)){var layerCache=cache[layerKey];for(var styleKey in layerCache){if(hasOwnProperty.call(layerCache,styleKey)){var styleCache=layerCache[styleKey],updateStyles=true;for(var key in styleCache){if(hasOwnProperty.call(styleCache,key)){var info=styleCache[key],positions=info.positions,lines=info.lines;if(updateStyles){context.fillStyle=info.font.color;context.font=info.font.definition;updateStyles=false}for(var i=0,position;position=positions[i];i++){if(position.active){for(var j=0,line;line=position.lines[j];j++){context.fillText(lines[j].text,line[0],line[1])}}else{positions.splice(i--,1)}}if(positions.length==0){delete styleCache[key]}}}}}}}context.restore()};Canvas.prototype.getTextInfo=function(layer,text,font,angle,width){if(!plot.getOptions().canvas){return getTextInfo.call(this,layer,text,font,angle,width)}var textStyle,layerCache,styleCache,info;text=""+text;if(typeof font==="object"){textStyle=font.style+" "+font.variant+" "+font.weight+" "+font.size+"px "+font.family}else{textStyle=font}layerCache=this._textCache[layer];if(layerCache==null){layerCache=this._textCache[layer]={}}styleCache=layerCache[textStyle];if(styleCache==null){styleCache=layerCache[textStyle]={}}info=styleCache[text];if(info==null){var context=this.context;if(typeof font!=="object"){var element=$("<div> </div>").css("position","absolute").addClass(typeof font==="string"?font:null).appendTo(this.getTextLayer(layer));font={lineHeight:element.height(),style:element.css("font-style"),variant:element.css("font-variant"),weight:element.css("font-weight"),family:element.css("font-family"),color:element.css("color")};font.size=element.css("line-height",1).height();element.remove()}textStyle=font.style+" "+font.variant+" "+font.weight+" "+font.size+"px "+font.family;info=styleCache[text]={width:0,height:0,positions:[],lines:[],font:{definition:textStyle,color:font.color}};context.save();context.font=textStyle;var lines=(text+"").replace(/<br ?\/?>|\r\n|\r/g,"\n").split("\n");for(var i=0;i<lines.length;++i){var lineText=lines[i],measured=context.measureText(lineText);info.width=Math.max(measured.width,info.width);info.height+=font.lineHeight;info.lines.push({text:lineText,width:measured.width,height:font.lineHeight})}context.restore()}return info};Canvas.prototype.addText=function(layer,x,y,text,font,angle,width,halign,valign){if(!plot.getOptions().canvas){return addText.call(this,layer,x,y,text,font,angle,width,halign,valign)}var info=this.getTextInfo(layer,text,font,angle,width),positions=info.positions,lines=info.lines;y+=info.height/lines.length/2;if(valign=="middle"){y=Math.round(y-info.height/2)}else if(valign=="bottom"){y=Math.round(y-info.height)}else{y=Math.round(y)}if(!!(window.opera&&window.opera.version().split(".")[0]<12)){y-=2}for(var i=0,position;position=positions[i];i++){if(position.x==x&&position.y==y){position.active=true;return}}position={active:true,lines:[],x:x,y:y};positions.push(position);for(var i=0,line;line=lines[i];i++){if(halign=="center"){position.lines.push([Math.round(x-line.width/2),y])}else if(halign=="right"){position.lines.push([Math.round(x-line.width),y])}else{position.lines.push([Math.round(x),y])}y+=line.height}}}$.plot.plugins.push({init:init,options:options,name:"canvas",version:"1.0"})})(jQuery); |