Bug 145705 [regression]Tooltip of chart cannot display completely
Description: Tooltip of chart cannot display completely Steps to reproduce: 1. Set tooltip "abcdef\ndeeeeee" to X-Axis 2. preview Expected result: tooltip can be displayed completely Actual result: Only can see the first line of tooptip
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/EventHandlers.java
.append( "	           var adjustedX = (x-off.x)/scl;\n" ) 
			.append( "	           var adjustedY = (y-off.y)/scl;\n" ) 
			.append( "		   this.group = new BuildHelper(\"g\",\n" ) 
			.append( "		     {\n" ) 
			.append( "	             opacity:0.8,\n" ) 
			.append( "	  	     display: \"inline\",\n" ) 
			.append( "		     transform:\"translate(\"+(adjustedX + (10/scl))+\",\"+(adjustedY + (10/scl))+\")\"\n" ) 
			.append( "		 } );\n" ) 
			.append( "		   this.group.addToParent(mainSvg);\n" ) 
			.append( "		   this.rectangle = new BuildHelper(\"rect\",\n" ) 
			.append( "		     {id:\"test\",\n" ) 
			.append( "		      x: 0,\n" ) 
			.append( "		      y: 5,\n" ) 
			.append( "		      transform:\"scale(\"+(1/scl)+\",\"+(1/scl)+\")\",\n" ) 
			.append( "	              rx: 2,\n" ) 
			.append( "	              ry: 2,\n" ) 
			.append( "	              stroke: \"black\",\n" ) 
			.append( "		      height: this.height,\n" ) 
			.append( "		      classType: \"tooltip\"\n" ) 
			.append( "		 } );\n" ) 
			.append( "		   this.rectangle.addToParent(this.group.element);\n" ) 
			.append( "		   var textObj = new BuildHelper(\"text\",\n" ) 
			.append( "		     {id:\"tooltip\",\n" ) 
			.append( "		      x: this.xPadding,\n" ) 
			.append( "		      y: (this.yPadding),\n" ) 
			.append( "		      transform:\"scale(\"+(1/scl)+\",\"+(1/scl)+\")\",\n" ) 
			.append( "		      classType: \"tooltip text\"\n" ) 
			.append( "		 });\n" ) 
			.append( "		   textObj.addToParent(this.group.element);\n" ) 
			.append( "	           TM.setContent(textObj, text);\n" )