docx4js/parser/openxml/docx/model/style.js

javascript docx parser

define(['../model'],function(Model){
	var RGB=/([a-fA-F0-9]{2}?){3}?/;
	return Model.extend(function(wXml,wDoc,mParent){
		Model.apply(this,arguments)
		if(wXml.attr('w:default')=='1')
			wDoc.style.setDefault(this)
		this.name=this._val('name')
		if(this.id=this._attr('w:styleId'))
			wDoc.style.set(this)
	},{
		getParentStyle: function(){
			return this.wDoc.style.get(this._val('basedOn'))
		},
		isDefault: function(){
			return this.wXml.attr('w:default')=='1'
		},
		getNumId: function(){
			return -1
		},
		getOutlineLevel: function(){
			return -1
		}
	},{
		Properties: Model.extend({
			EMPTY:-999,
			type:null,
			naming:{},
			//use parent visitor to visitor style nodes and attributes	
			parse: function(visitors){
				var values={}
				visitors.forEach(function(visitor){
					[this._getValidChildren(),this.wXml.attributes].forEach(function(children){
						for(var len=children.length,i=0;i<len;i++){
							var node=children[i], name=node.localName
							if(values[name]==undefined && $.isFunction(this[name]))
								values[name]=this[name](node);
							values[name]!=this.EMPTY && visitor.visit(values[name],this.naming[name]||name,this.type)
						}
					},this)
				},this)
			},
			_getValidChildren: function(){
				return this.wXml.childNodes
			},
			basedOn: function(x){
				return x.attr('w:val')
			},
			asColor: function(v){
				if(!v || v.length==0 || v=='auto')
					return '#000000'
				v=v.split(' ')[0]
				return v.charAt(0)=='#' ? v : (RGB.test(v) ? '#'+v : v)
			},
			shadeColor: function(color, percent) {
				if(!RGB.test(color))
					return color
				var R = parseInt(color.substring(1,3),16);
				var G = parseInt(color.substring(3,5),16);
				var B = parseInt(color.substring(5,7),16);

				R = parseInt(R * (100 + percent) / 100);
				G = parseInt(G * (100 + percent) / 100);
				B = parseInt(B * (100 + percent) / 100);

				R = (R<255)?R:255;  
				G = (G<255)?G:255;  
				B = (B<255)?B:255;  

				var RR = ((R.toString(16).length==1)?"0"+R.toString(16):R.toString(16));
				var GG = ((G.toString(16).length==1)?"0"+G.toString(16):G.toString(16));
				var BB = ((B.toString(16).length==1)?"0"+B.toString(16):B.toString(16));

				return "#"+RR+GG+BB;
			},
			asObject: function(x, f){
				var o={}
				for(var i=0,attrs=x.attributes,len=attrs.length;i<len;i++)
					o[attrs[i].localName]= f ? f(attrs[i].value) : attrs[i].value
				return o
			},
			asPt: function(x, type){
				switch(type){
				case 'cm': 
					return parseInt(x)*28.3464567/360000;
				default://dxa 
					return parseInt(x)/20.0
				}
			},
			pt2Px: function(x){
				if(typeof(x)=='string')
					x=parseFloat(x.replace('pt','')) 
				return Math.floor(x*96/72)
			}
		})
	})
})