在FXML中包含标签

时间:2012-08-21 09:52:27

标签: javafx-2 fxml

我想知道是否有一种方法可以包含在同一FXML文件中定义的代码片段(标签)。我想要的是多次包含相同的图像,而无需复制粘贴所有属性:

<HBox>
  <Label translateY="25" alignment="center"  text="">
    <graphic>
      <ImageView fitWidth="100" preserveRatio="true" smooth="true">
        <image>
          <Image url="arrow_right.png"/>
        </image>
      </ImageView>
    </graphic>
  </Label>
</HBox>

我想要像:

<fx:define>
  <Label fx:id="myLabel" translateY="25" alignment="center"  text="">
    <graphic>
      <ImageView fitWidth="100" preserveRatio="true" smooth="true">
        <image>
          <Image url="arrow_right.png"/>
        </image>
      </ImageView>
    </graphic>
  </Label>
</fx:define>

<HBox>
    <fx:include source="$myLabel" />
</HBox>

我已经阅读了这个答案https://stackoverflow.com/a/8490764/1606953,但它涵盖了外部来源(=其他文件)的包含。我对包含一小段代码感兴趣

谢谢大家

2 个答案:

答案 0 :(得分:1)

&LT; FX:包括&GT;绝对是处理这个的最好方法。你不能使用&lt; fx:define&gt;因为“myLabel”只能拥有一个父节点。通过将Label放在include中,您将能够创建内容的多个实例,每个实例都可以拥有自己的父实例。

答案 1 :(得分:0)

我(几乎)找到了我要找的东西:

my-tab.fxml:

<HBox>
  <fx:define>
    <Label fx:id="arrow" alignment="center"  text="" maxWidth="Infinity" VBox.vgrow="ALWAYS" HBox.hgrow="ALWAYS">
     <graphic>
        <ImageView fitWidth="100" preserveRatio="true" smooth="true">
           <image>
             <Image url="peet/resources/images/arrow_right.png"/>
           </image>
        </ImageView>
     </graphic>
    </Label>
  </fx:define>
  <children>
    <Button wrapText="true" text="AAA" maxHeight="Infinity" maxWidth="Infinity"  VBox.vgrow="ALWAYS" HBox.hgrow="ALWAYS" /> 
    <fx:reference source="arrow" />                              
    <Button text="BBB" wrapText="true" minHeight="150" minWidth="100" maxWidth="Infinity" VBox.vgrow="ALWAYS" HBox.hgrow="ALWAYS" /> 
    <fx:reference source="arrow" />
    <Button text="CCC" wrapText="true" minHeight="150" minWidth="100" maxWidth="Infinity" VBox.vgrow="ALWAYS" HBox.hgrow="ALWAYS" /> 
    <fx:reference source="arrow" />
    <Button  text="DDD" wrapText="true" minHeight="150" minWidth="100" maxWidth="Infinity" VBox.vgrow="ALWAYS" HBox.hgrow="ALWAYS" /> 
  </children>       
</HBox> 

这只适用于我们只提供1个参考。如果我们做3个引用,比如这里,我们会得到这个例外:

Children: duplicate children added: parent = HBox@2df02fde
file:/C:/.../my-tab.fxml:48
file:/C:/.../Xxx.jar!/xxx/client/MainTabs.fxml:16
  at javafx.scene.Parent$1.onProposedChange(Parent.java:307)
  at com.sun.javafx.collections.VetoableObservableList.add(VetoableObservableList.java:165)
  at com.sun.javafx.collections.ObservableListWrapper.add(ObservableListWrapper.java:144)
  at javafx.fxml.FXMLLoader$Element.add(FXMLLoader.java:130)
  at javafx.fxml.FXMLLoader$PropertyElement.add(FXMLLoader.java:1179)
  at javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:609)
  at javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2430)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2136)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2028)
  at javafx.fxml.FXMLLoader$IncludeElement.constructValue(FXMLLoader.java:937)
  at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:567)
  at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2314)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2131)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2028)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2742)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2721)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2707)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2694)
  at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2683)
  at xxx.client.XXX.start(XXX.java:21)
  at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
  at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:206)
  at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:173)
  at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
  at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
  at com.sun.glass.ui.win.WinApplication$2$1.run(WinApplication.java:67)
  at java.lang.Thread.run(Thread.java:722)  

任何选项?