Flex 4打印功能
2011-11-10 09:14
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Flex 4打印功能
Flex4的打印功能和Silverlight 4打印功能步骤很相似,但是实现不同,Flex 4的打印功能不是事件驱动,基本步骤如下:
步骤1:建立FlexPrintJob对象, 可以把该对象看作Silverlight的PrintDocument;
步骤2:使用一个布尔变量控制要打印的图片格式,例如是打印矢量图还是打印位图;
步骤3:调用FlexPrintJob中的Start()方法,这时会弹出提示窗口,询问是否开始打印,选择确定,将开始打印;
步骤4:建立一个打印对象,并添加这个打印对象到现实列表中;
步骤5:使用FlexPrintJob中的addObject()添加对象到打印页面中;
步骤6:调用FlexPrintJob中的send()方法,对添加的打印页面进行打印;
步骤7:打印后,删除已经打印的视图对象;
下面提供按钮事件代码,点击按钮后,会打印出“Hello World”。
protected function button1_clickHandler(event:MouseEvent):void
{
var job : FlexPrintJob = new FlexPrintJob();
job.printAsBitmap = false;
if(job.start()) {
var group : HGroup = new HGroup();
group.height = job.pageHeight;
group.width = job.pageWidth;
var text : SimpleText = new SimpleText();
text.text = "Hello ";
text.setStyle("fontFamily", "Arial");
text.setStyle("fontSize",12);
group.addElement(text);
text = new SimpleText();
text.setStyle("fontFamily", "Arial");
text.setStyle("fontSize",12);
text.text = "World";
group.addElement(text);
addElement(group);
job.addObject(group, FlexPrintJobScaleType.NONE);
job.send();
removeElement(group);
}
Flex中的打印技术
时间:2009-06-29 20:40来源:未知 作者:admin 点击: 次
总结了一下打印技术。大家看看吧。 1.简单的例子 ?xml version=1.0 encoding=utf-8? mx:Application xmlns:mx=http://www.adobe.com/2006/mxml layout=absolute fontSize=12 mx:Script ![CDATA[ import mx.printing.FlexPrintJob; publi
总结了一下打印技术。大家看看吧。
1.简单的例子
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="12">
<mx:Script>
<![CDATA[
import mx.printing.FlexPrintJob;
public function doPrint():void
{
var printjob:FlexPrintJob = new FlexPrintJob();
printjob.start();
printjob.addObject(box);
printjob.send();
}
]]>
</mx:Script>
<mx:VBox id="box" x="225" y="58" width="303" height="260">
<mx:Label text="This is a placeholder for first page contents"/>
<mx:Button label="Print" click="doPrint()" />
</mx:VBox>
</mx:Application>
2.实现Datagrid的打印
组件FormPrintHeader.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="60%"
horizontalAlign="right" >
<mx:Label text="我是打印组件的头部。"/>
</mx:VBox>
组件FormPrintFooter.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="60%"
horizontalAlign="right" >
<mx:Script>
<![CDATA[
[Bindable]
public var pTotal:Number = 0;
]]>
</mx:Script>
<mx:Label text="我是尾部 总行数: {pTotal}"/>
</mx:VBox>
组件FormPrintView.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*" backgroundColor="#FFFFFF"
paddingTop="50" paddingBottom="50" paddingLeft="50">
<mx:Script>
<![CDATA[
import mx.core.*
[Bindable]
public var pageNumber:Number = 1;
[Bindable]
public var prodTotal:Number = 0;
//打印的头尾的显示方式
public function showPage(pageType:String):void {
if(pageType == "first" || pageType == "middle") {// 隐藏尾部
footer.includeInLayout=false;
footer.visible = false;
}
if(pageType == "middle" || pageType == "last") {// 隐藏头部
header.includeInLayout=false;
header.visible = false;
}
if(pageType == "last") {// 显示尾部
footer.includeInLayout=true;
footer.visible = true;
}
validateNow();//不知这是什么?
}
]]>
</mx:Script>
<mx:VBox width="80%" horizontalAlign="left">
<mx:Label text="Page {pageNumber}"/>
</mx:VBox>
<!-- 引用自定义头-->
<FormPrintHeader id="header" />
<!--如果 sizeToPage 属性为 false,且 PrintDataGrid 仅显示完全可见的行而不显示部分行,则为 PrintDataGrid 的高度 -->
<mx:PrintDataGrid id="myDataGrid" width="60%" height="100%" sizeToPage="true">
<mx:columns>
<mx:DataGridColumn dataField="Index" />
<mx:DataGridColumn dataField="Qty" />
</mx:columns>
</mx:PrintDataGrid>
<!-- 引用自定义尾-->
<FormPrintFooter id="footer" pTotal="{prodTotal}" />
</mx:VBox>
最后就是主要的文件了:
main.mxml:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="12">
<mx:Script>
<![CDATA[
import mx.printing.*;
import mx.collections.ArrayCollection;
import FormPrintView;//引入自定义的组件
[Bindable]
public var dgProvider:ArrayCollection = new ArrayCollection;;
public var footerHeight:Number = 20;
public var prodTotal:Number = 0;
public var flag:Number;
// 生成数据以填充表格
public function setdgProvider(max:int):void {
flag=1;
dgProvider.removeAll();//清空所有数据
for (var i:int=0; i<max; i++)
{
var prod1:Object = {};
prod1.Qty = flag * 5;
prod1.Index = flag++;
prodTotal = max;//总行数
dgProvider.addItem(prod1);
}
}
// 打印
public function doPrint():void {
var printJob:FlexPrintJob = new FlexPrintJob();
if (printJob.start()) {
var thePrintView:FormPrintView = new FormPrintView();//创建自定义的FormPrintView
Application.application.addChild(thePrintView);//加入到Application
//设置自定义的FormPrintView属性
thePrintView.width=printJob.pageWidth;
thePrintView.height=printJob.pageHeight;
thePrintView.prodTotal = prodTotal;
//设置自定义的FormPrintView它中的myDataGrid数据源
thePrintView.myDataGrid.dataProvider = myDataGrid.dataProvider;
thePrintView.showPage("single");//显示方式
//validNextPage 属性 validNextPage:Boolean []指示包含 PrintDataGrid 控件当前显示的行之后的其他数据行的数据提供程序。
if(!thePrintView.myDataGrid.validNextPage)
{
printJob.addObject(thePrintView);//添加打印的对象
}else{
thePrintView.showPage("first");
printJob.addObject(thePrintView);
thePrintView.pageNumber++;
while(true)
{
//nextPage方法将下一个数据行集放在视图中,即将 PrintDataGridverticalScrollPosition 属性设置为 verticalScrollPosition +(可滚动行数)。
thePrintView.myDataGrid.nextPage();
thePrintView.showPage("last");
if(!thePrintView.myDataGrid.validNextPage)
{
printJob.addObject(thePrintView);
break;
}else{
thePrintView.showPage("middle");
printJob.addObject(thePrintView);
thePrintView.pageNumber++;
}
}
}
Application.application.removeChild(thePrintView);
}
printJob.send();
}
]]>
</mx:Script>
<mx:Panel title="DataGrid Printing Example" height="75%" width="75%"
paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10">
<mx:DataGrid id="myDataGrid" dataProvider="{dgProvider}">
<mx:columns>
<mx:DataGridColumn dataField="Index"/>
<mx:DataGridColumn dataField="Qty"/>
</mx:columns>
</mx:DataGrid>
<mx:TextInput id="dataItems" text="10"/>
<mx:HBox>
<mx:Button id="setDP" label="Fill Grid" click="setdgProvider(int(dataItems.text));"/>
<mx:Button id="printDG" label="Print" click="doPrint();"/>
</mx:HBox>
</mx:Panel>
</mx:Application>
3.实现Datagrid的打印预览与打印
组件MyPrintView.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"
backgroundColor="#FFFFFF"
height="250" width="450"
paddingTop="50" paddingLeft="50" paddingRight="50">
<mx:PrintDataGrid id="myDataGrid" width="100%">
<mx:columns>
<mx:DataGridColumn dataField="Product"/>
<mx:DataGridColumn dataField="Code"/>
</mx:columns>
</mx:PrintDataGrid>
</mx:VBox>
PrintDatagrid.mxml:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:states>
<mx:State name="printView">
<mx:AddChild position="lastChild">
<mx:Panel width="388" height="303" layout="absolute">
<mx:Image id="img" x="10" y="10"/>
</mx:Panel>
</mx:AddChild>
<mx:AddChild position="lastChild">
<mx:Button label="Back" click="currentState=''"/>
</mx:AddChild>
<mx:RemoveChild target="{myDataGrid}"/>
<mx:RemoveChild target="{button1}"/>
<mx:RemoveChild target="{myButton}"/>
</mx:State>
</mx:states>
<mx:Script>
<![CDATA[
import mx.printing.FlexPrintJob;
import MyPrintView;
import mx.graphics.ImageSnapshot;
import mx.core.UIComponent;
//把myDataGrid转换成图片。
private function print(u:UIComponent):void{
currentState="printView";
var bmp:BitmapData = ImageSnapshot.captureBitmapData(u);
var i:Bitmap = new Bitmap(bmp);
img.source = i;
img.scaleContent = true;
}
public function doPrint():void {
var printJob:FlexPrintJob = new FlexPrintJob();
if(printJob.start()) {
//创建自定义的MyPrintView
var formPrintView:MyPrintView = new MyPrintView();
addChild(formPrintView); //加入到Application
formPrintView.myDataGrid.dataProvider = myDataGrid.dataProvider;
printJob.addObject(formPrintView);
printJob.send();
removeChild(formPrintView);
}
}
]]>
</mx:Script>
<mx:DataGrid id="myDataGrid" width="300">
<mx:dataProvider>
<mx:Object Product="Flash" Code="1000"/>
<mx:Object Product="Flex" Code="2000"/>
<mx:Object Product="ColdFusion" Code="3000"/>
<mx:Object Product="JRun" Code="4000"/>
</mx:dataProvider>
</mx:DataGrid>
<mx:Button label="PrintView" click="print(myDataGrid)" id="button1"/>
<mx:Button id="myButton" label="Print" click="doPrint();"/>
</mx:Application>
Flex打印 之 横向打印&多页打印
2009-03-03 10:10
Flex4的打印功能和Silverlight 4打印功能步骤很相似,但是实现不同,Flex 4的打印功能不是事件驱动,基本步骤如下:
步骤1:建立FlexPrintJob对象, 可以把该对象看作Silverlight的PrintDocument;
步骤2:使用一个布尔变量控制要打印的图片格式,例如是打印矢量图还是打印位图;
步骤3:调用FlexPrintJob中的Start()方法,这时会弹出提示窗口,询问是否开始打印,选择确定,将开始打印;
步骤4:建立一个打印对象,并添加这个打印对象到现实列表中;
步骤5:使用FlexPrintJob中的addObject()添加对象到打印页面中;
步骤6:调用FlexPrintJob中的send()方法,对添加的打印页面进行打印;
步骤7:打印后,删除已经打印的视图对象;
下面提供按钮事件代码,点击按钮后,会打印出“Hello World”。
protected function button1_clickHandler(event:MouseEvent):void
{
var job : FlexPrintJob = new FlexPrintJob();
job.printAsBitmap = false;
if(job.start()) {
var group : HGroup = new HGroup();
group.height = job.pageHeight;
group.width = job.pageWidth;
var text : SimpleText = new SimpleText();
text.text = "Hello ";
text.setStyle("fontFamily", "Arial");
text.setStyle("fontSize",12);
group.addElement(text);
text = new SimpleText();
text.setStyle("fontFamily", "Arial");
text.setStyle("fontSize",12);
text.text = "World";
group.addElement(text);
addElement(group);
job.addObject(group, FlexPrintJobScaleType.NONE);
job.send();
removeElement(group);
}
Flex中的打印技术
时间:2009-06-29 20:40来源:未知 作者:admin 点击: 次
总结了一下打印技术。大家看看吧。 1.简单的例子 ?xml version=1.0 encoding=utf-8? mx:Application xmlns:mx=http://www.adobe.com/2006/mxml layout=absolute fontSize=12 mx:Script ![CDATA[ import mx.printing.FlexPrintJob; publi
总结了一下打印技术。大家看看吧。
1.简单的例子
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="12">
<mx:Script>
<![CDATA[
import mx.printing.FlexPrintJob;
public function doPrint():void
{
var printjob:FlexPrintJob = new FlexPrintJob();
printjob.start();
printjob.addObject(box);
printjob.send();
}
]]>
</mx:Script>
<mx:VBox id="box" x="225" y="58" width="303" height="260">
<mx:Label text="This is a placeholder for first page contents"/>
<mx:Button label="Print" click="doPrint()" />
</mx:VBox>
</mx:Application>
2.实现Datagrid的打印
组件FormPrintHeader.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="60%"
horizontalAlign="right" >
<mx:Label text="我是打印组件的头部。"/>
</mx:VBox>
组件FormPrintFooter.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="60%"
horizontalAlign="right" >
<mx:Script>
<![CDATA[
[Bindable]
public var pTotal:Number = 0;
]]>
</mx:Script>
<mx:Label text="我是尾部 总行数: {pTotal}"/>
</mx:VBox>
组件FormPrintView.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*" backgroundColor="#FFFFFF"
paddingTop="50" paddingBottom="50" paddingLeft="50">
<mx:Script>
<![CDATA[
import mx.core.*
[Bindable]
public var pageNumber:Number = 1;
[Bindable]
public var prodTotal:Number = 0;
//打印的头尾的显示方式
public function showPage(pageType:String):void {
if(pageType == "first" || pageType == "middle") {// 隐藏尾部
footer.includeInLayout=false;
footer.visible = false;
}
if(pageType == "middle" || pageType == "last") {// 隐藏头部
header.includeInLayout=false;
header.visible = false;
}
if(pageType == "last") {// 显示尾部
footer.includeInLayout=true;
footer.visible = true;
}
validateNow();//不知这是什么?
}
]]>
</mx:Script>
<mx:VBox width="80%" horizontalAlign="left">
<mx:Label text="Page {pageNumber}"/>
</mx:VBox>
<!-- 引用自定义头-->
<FormPrintHeader id="header" />
<!--如果 sizeToPage 属性为 false,且 PrintDataGrid 仅显示完全可见的行而不显示部分行,则为 PrintDataGrid 的高度 -->
<mx:PrintDataGrid id="myDataGrid" width="60%" height="100%" sizeToPage="true">
<mx:columns>
<mx:DataGridColumn dataField="Index" />
<mx:DataGridColumn dataField="Qty" />
</mx:columns>
</mx:PrintDataGrid>
<!-- 引用自定义尾-->
<FormPrintFooter id="footer" pTotal="{prodTotal}" />
</mx:VBox>
最后就是主要的文件了:
main.mxml:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="12">
<mx:Script>
<![CDATA[
import mx.printing.*;
import mx.collections.ArrayCollection;
import FormPrintView;//引入自定义的组件
[Bindable]
public var dgProvider:ArrayCollection = new ArrayCollection;;
public var footerHeight:Number = 20;
public var prodTotal:Number = 0;
public var flag:Number;
// 生成数据以填充表格
public function setdgProvider(max:int):void {
flag=1;
dgProvider.removeAll();//清空所有数据
for (var i:int=0; i<max; i++)
{
var prod1:Object = {};
prod1.Qty = flag * 5;
prod1.Index = flag++;
prodTotal = max;//总行数
dgProvider.addItem(prod1);
}
}
// 打印
public function doPrint():void {
var printJob:FlexPrintJob = new FlexPrintJob();
if (printJob.start()) {
var thePrintView:FormPrintView = new FormPrintView();//创建自定义的FormPrintView
Application.application.addChild(thePrintView);//加入到Application
//设置自定义的FormPrintView属性
thePrintView.width=printJob.pageWidth;
thePrintView.height=printJob.pageHeight;
thePrintView.prodTotal = prodTotal;
//设置自定义的FormPrintView它中的myDataGrid数据源
thePrintView.myDataGrid.dataProvider = myDataGrid.dataProvider;
thePrintView.showPage("single");//显示方式
//validNextPage 属性 validNextPage:Boolean []指示包含 PrintDataGrid 控件当前显示的行之后的其他数据行的数据提供程序。
if(!thePrintView.myDataGrid.validNextPage)
{
printJob.addObject(thePrintView);//添加打印的对象
}else{
thePrintView.showPage("first");
printJob.addObject(thePrintView);
thePrintView.pageNumber++;
while(true)
{
//nextPage方法将下一个数据行集放在视图中,即将 PrintDataGridverticalScrollPosition 属性设置为 verticalScrollPosition +(可滚动行数)。
thePrintView.myDataGrid.nextPage();
thePrintView.showPage("last");
if(!thePrintView.myDataGrid.validNextPage)
{
printJob.addObject(thePrintView);
break;
}else{
thePrintView.showPage("middle");
printJob.addObject(thePrintView);
thePrintView.pageNumber++;
}
}
}
Application.application.removeChild(thePrintView);
}
printJob.send();
}
]]>
</mx:Script>
<mx:Panel title="DataGrid Printing Example" height="75%" width="75%"
paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10">
<mx:DataGrid id="myDataGrid" dataProvider="{dgProvider}">
<mx:columns>
<mx:DataGridColumn dataField="Index"/>
<mx:DataGridColumn dataField="Qty"/>
</mx:columns>
</mx:DataGrid>
<mx:TextInput id="dataItems" text="10"/>
<mx:HBox>
<mx:Button id="setDP" label="Fill Grid" click="setdgProvider(int(dataItems.text));"/>
<mx:Button id="printDG" label="Print" click="doPrint();"/>
</mx:HBox>
</mx:Panel>
</mx:Application>
3.实现Datagrid的打印预览与打印
组件MyPrintView.mxml:
<?xml version="1.0"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"
backgroundColor="#FFFFFF"
height="250" width="450"
paddingTop="50" paddingLeft="50" paddingRight="50">
<mx:PrintDataGrid id="myDataGrid" width="100%">
<mx:columns>
<mx:DataGridColumn dataField="Product"/>
<mx:DataGridColumn dataField="Code"/>
</mx:columns>
</mx:PrintDataGrid>
</mx:VBox>
PrintDatagrid.mxml:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:states>
<mx:State name="printView">
<mx:AddChild position="lastChild">
<mx:Panel width="388" height="303" layout="absolute">
<mx:Image id="img" x="10" y="10"/>
</mx:Panel>
</mx:AddChild>
<mx:AddChild position="lastChild">
<mx:Button label="Back" click="currentState=''"/>
</mx:AddChild>
<mx:RemoveChild target="{myDataGrid}"/>
<mx:RemoveChild target="{button1}"/>
<mx:RemoveChild target="{myButton}"/>
</mx:State>
</mx:states>
<mx:Script>
<![CDATA[
import mx.printing.FlexPrintJob;
import MyPrintView;
import mx.graphics.ImageSnapshot;
import mx.core.UIComponent;
//把myDataGrid转换成图片。
private function print(u:UIComponent):void{
currentState="printView";
var bmp:BitmapData = ImageSnapshot.captureBitmapData(u);
var i:Bitmap = new Bitmap(bmp);
img.source = i;
img.scaleContent = true;
}
public function doPrint():void {
var printJob:FlexPrintJob = new FlexPrintJob();
if(printJob.start()) {
//创建自定义的MyPrintView
var formPrintView:MyPrintView = new MyPrintView();
addChild(formPrintView); //加入到Application
formPrintView.myDataGrid.dataProvider = myDataGrid.dataProvider;
printJob.addObject(formPrintView);
printJob.send();
removeChild(formPrintView);
}
}
]]>
</mx:Script>
<mx:DataGrid id="myDataGrid" width="300">
<mx:dataProvider>
<mx:Object Product="Flash" Code="1000"/>
<mx:Object Product="Flex" Code="2000"/>
<mx:Object Product="ColdFusion" Code="3000"/>
<mx:Object Product="JRun" Code="4000"/>
</mx:dataProvider>
</mx:DataGrid>
<mx:Button label="PrintView" click="print(myDataGrid)" id="button1"/>
<mx:Button id="myButton" label="Print" click="doPrint();"/>
</mx:Application>
Flex打印 之 横向打印&多页打印
2009-03-03 10:10
[创] Flex提供两种打印方法:FlexPrintJob和PrintJob。 一、由于flex是打印图像的缘故,打印出来的文字、表格会不清晰。解决方法如下: 1、将FlexPrintJob中printAsBitmap属性设置为true。 2、使用PrintJob 二、打印缩放的解决方法 1、FlexPrintJob.addObject()中 scaleType 可以使用 FlexPrintJobScaleType,FlexPrintJobScaleType中定义了缩放的几种常见方式。 <pre> 2、PrintJob默认为不缩放输出,如需要缩放可以使用 scale 属性 var pj:PrintJob = new PrintJob(); var xScale:Number; var yScale:Number; xScale = (pj.pageWidth / this.height); yScale = (pj.pageHeight / this.width); this.scaleX= Math.min(xScale, yScale); this.scaleY = Math.min(xScale, yScale); pj.addPage(this); pj.send(); 三、打印的横向和纵向的控制 1、判断打印方向 利用 PrintJob.orientation(图像打印方向) 判断,PrintJob.orientation == PrintJobOrientation.LANDSCAPE 或者PrintJobOrientation.PORTRAIT(LANDSCAPE表示横向打印;PORTRAIT表示纵向打印) 2、如需改变方向 this.rotation = 90; 即表示旋转90度 3、转动后文字消失问题 绝大多数文字在转动后会出现消失问题,是由于字体的缘故。有两个解决方法: (1)将字体加载到文件中,该方法缺点是对于中文而言消耗大,通常达到几M,英文常在几十K内。也可以用外嵌字体,将字体打包成另外一个swf文件,然后由主flash文件去外部调用 <pre> @font-face { fontFamily: "simhei"; src: url("assets/simhei.ttf"); fontWeight: normal; } global { fontFamily: "simsun"; fontWeight: normal; fontSize: 10; color:#000000; } </pre> <pre> private function completeHandle(e:Event):void{ fontClass = Object(e.target.content).loaderInfo.applicationDomain.getDefinition("Font1") as Class Font.registerFont(fontClass); tt.styleName = "myPlainStyle" tt.rotation = 30; } </pre> (2)使用Bitmap和Bitmapdata类,将文字转化为图像后再转动。该方法消耗小,但是文字有可能失真,而且对每个文字组件都要进行转换。 var bmp:BitmapData = new BitmapData(aa.width,aa.height,true); bmp.draw(aa); var bt:Bitmap = new Bitmap(bmp); var img:Image = new Image(); img.source = bt; img.x = 200; img.y = 200; img.rotation = 120; addChild(img); 转动后显示图像页会随之改变所以打印发送完毕后,要将显示的内容再旋转会去,参考http://jessewarden.com/2008/09/forcing-landscape-printing-in-flex-2-3.html 4、多页打印可使用PrintJob,请参见adobe使用示例 |
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