Ext 右上角小图标 tool

tools: [
{id:'toggle'},{id:'close'},{id:'minimize'},{id:'maximize'},{id:'restore'},{id:'gear'},{id:'pin'},{id:'unpin'},{id:'right'},{id:'left'},{id:'up'},{id:'down'},{id:'refresh'},{id:'minus'},{id:'plus'},{id:'help'},{id:'search'},{id:'save'},{id:'print'}
]

eg:

discussWin = new Ext.Window({
	           	title: '提交新讨论',
		       	closeAction: 'hide',
		        width: 400,
		       	height:300,
		       	minWidth: 300,
		       	minHeight: 200,
		       	layout: 'fit',
	           	items: [discussFrom],
	           	buttonAlign:'center',
	           	tools: [
		            {id:'toggle'},{id:'close'},{id:'minimize'},{id:'maximize'}
        		],
		  	buttons:[{text:'提交',handler:function(){}}]
       		});
       	    discussWin.show();

如下图：