I'm using JavaFX Scene Builder 2.0. version and I would like to import a FXML file under TabPane controller. My idea is that I will have one kind of container FXML file with TabPane and separate FXML files for things that will come inside of tabs. When I try to import FXML file where I have things that I would like to add under one tab, Scene Builder gives error message "Failed to import TabContents.fxml under TabPane". Why it is not possible to import anything under the TabPane? If I import same file directly under root StackPane everything works.
EDIT: While the below works, it is best to add some sort of layout pane (like an AnchorPane) to each tab in your TabPane, select the AnchorPane pane in the hierarchy view on the left and then import your other fxml document into that, as opposed to importing directly into a TabPane (Perhaps if the root node of the document is a Tab it would work?).
Looks like a bug, for now:
Cut your entire document hierarchy
Add an empty stack pane
Include your other FXML file
Paste your document hierarchy into the stack pane
Drag your FXML file into the appropriate place in your hierarchy
Cut your new hierarchy (with your file included)
Delete the now defunct stack pane
Paste your hierarchy back in
And voila, working as intended!
Three simple steps
Add a StackPane to the content area of your Tab, ensuring that it occupies 100% of the area.
Go to the Hierarchy view and select that StackPane you just added.
Include your TabContents.fxml. It should automatically be added to the created StackPane and should display as desired.
Also, to answer your additional question, importing it directly into the TabPane will render it as a Graphic rather than a Node.
just add a new TabPane where you want and then edit your FXML code of the TabPane just added as following:
<TabPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="5000.0" prefWidth="5000.0" tabClosingPolicy="UNAVAILABLE">
<tabs>
<Tab closable="false" text="MyTab1">
<content>
<fx:include source="MyTab1.fxml" />
</content>
</Tab>
<Tab closable="false" text="MyTab2">
<content>
<fx:include source="MyTab2.fxml" />
</content>
</Tab>
</tabs>
</TabPane>
adding as many tab you need just adding more 'Tab' tags.
'MyTab1.fxml' and 'MyTab2.fxml' are just fxml files contained in the same folder of the fxml file of the TabPane.
it works for me selecting first the root node in the scene. Then I import de FXML and it is imported hanging from this root node. As the last step, I move the imported FXML to the place I want in the scene.
I realised that the FXML import can also fail when you have another FXML template included in the one you want to import. Something like:
<fx:include source="top-menu-bar.fxml" />
Looks like SceneBuilder doesn't know where is top-menu-bar.fxml. The solution can be to work on the template separately and then adding those includes manually to make it works.
It works for me:
<AnchorPane prefHeight="200.0" prefWidth="200.0" BorderPane.alignment="CENTER" >
<children>
<fx:include fx:id="includeID" source="includeSource.fxml" />
</children>
</AnchorPane>
The include file must be include in the children of a pane.
Related
Hello，when I study JavaFX in "Using FXML to Create a User Interface" https://docs.oracle.com/javase/8/javafx/get-started-tutorial/fxml_tutorial.htm
I want to write a demo like a simple calculator.
when I use the GridPane layout, it can not have an error,
but when I use the Pane layout, it showed the error "No Controller specified for top-level element" in the sample.fxml.
I do not understand it
I tried another way that I did not use FXML, wrote code in the Main.java like this
if you use action in fxml you will need to specify what class will be used to find this method, usually by attribute in root element like this
<GridPane fx:controller="sample.Controller"
xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10">
more about https://docs.oracle.com/javafx/2/api/javafx/fxml/doc-files/introduction_to_fxml.html#controller_method_event_handlers
or can use the method in FXMLoader when you have to use special instance
FXMLLoader loader = new FXMLLoader(getClass().getResource("sample.fxml"));
loader.setController(new Controller());
Parent root = loader.load();
In Scene Builder, I included many fxml files in Tabs, but now, I can not include any. Also, if I delete my existing fxml file which doesn't have any problem, and then add again by using Scene Builder's include function(File->Include->FXML..), I get the same error:
"Failed to include '*.fxml' under Tab."
EDIT: I get same error in gluon scene builder 8.3.0.
I experience the same issue with SceneBuilder 8.3.0, Eclipse Neon + Oracle JDK8 on Linux.
However, using a phrase as such
<Tab fx:id="tab1" text="Untitled Tab 1">
<content>
<fx:include id="tab1" source="Tab1View.fxml"/>
</content>
</Tab>
directly in the FXML file, it works as expected.
PS: I am wondering whether this is a bug or an unwanted feature.
I know the following problem is a bit of a luxury problem:
I would like to keep the initialize of my FXML Controller as clean as possible, and therefore I would like to set the placeholder of my TableView in the FXML file (as I think it is the best place to keep it, because it is just a property and in my case also a constant). I already tried to set it in the FXML file like this:
<TableView placeholder="Some text">
This obviously does not work, because the placeholder property expects a Node. That is why I set the placeholder like this in the initialize of the FXML controller:
Label placeholder = new Label();
placeholder.setText("Some text");
tableview.setPlaceholder(placeholder);
This works, but as I said, I would like to manage this from the FXML file only. Some my question is:
How can I set the placeholder from within the FXML file?
Note: please let me know if this i even possible, because when it is not, I will fill a feature request (with a low priority of course!).
Quite simple, just the usual FXML Syntax:
<BorderPane xmlns:fx="http://javafx.com/fxml/1">
<center>
<TableView>
<placeholder>
<Label text="some text"/>
</placeholder>
</TableView>
</center>
Note: Not everything is a primitive value (can be expressed inline) and therefore needs its own element.
I already found the answer using this question: Styling a JavaFX 2 button using FXML only - How to add an image to a button?
The graphic tag triggered the idea to do it like this:
<TableView>
<placeholder><Label text="Some Text"></Label></placeholder>
</TableView>
And luckily it works! I hope I helped some of you too. Also, sorry for asking this question too quickly.
How to get elements or nodes from FXML file using Java, I know the way by using initialization or by setting controller class in FxmL . But I need to do it without any controller. I want to access the nodes inside the fxml file using.
My FXML COde:
HBox fx:id="hbx" id="hbx" alignment="CENTER_RIGHT" prefHeight="100.0"
prefWidth="200.0" BorderPane.alignment="CENTER"
My java Code
System.out.println(par.lookupAll("hbx"));
See my Code above, could you give me a hint?
After loading the FXML file, you can use Node#lookup():
Node node = fxmlParentPane.lookup("#nodeId");
What are the pros and cons of using FXMLs or not using FXMLs for developing JavaFX applications?
For developing enterprise JavaFX application which approach should one follow?
FXML Cons: It takes slightly longer to load and display.
FXML Pros:
Rapid scene development / mock up using Scene Builder.
FXML is not a compiled language; you do not need to recompile the code to see the changes. Just reload the FXML file.
It provides a clear separation of GUI from logic/controller.
So you can have different versions of a scene/view using the same controller. This is handy for demo's for instance.
The content of an FXML file can be localized as the file is read.
Definitely use FXML in enterprise apps !
I would add two contra to Jurgens list.
If you are working with FXML instantiation of your view is sort of inconvenient. At least from my point of view.
Node explorer = new MyExplorerWidget();
or
Node explorer = cdicontainer.newInstance(MyExplorerWidget.class);
is more pleasant than
FXMLLoader loader = new FXMLLoader(getClass().getResource("com.mycompany.some.very.long.name.MyExplorerWidget.fxml"),explorerwidgetresouces);//Of course we want our app internationalized
Node explorer = loader.load();
Another point is that FXML is static. If you want to generate your UI at run time depending on some model you will write UI code anyway. I ended up with useless fxml files like this PropertyGrid.fxml
<AnchorPane xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="PropertyGridController">
<children>
<VBox fx:id="vbox" layoutX="63.0" layoutY="-28.0" prefHeight="172.0" prefWidth="163.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
</children>
</AnchorPane>
And the PropertyGridController.
public class PropertyGridController{
#FXML
VBox vbox;
....
public void setModel(PropertySheet model){
//.... tons of code to generate the actual property grid and add it to the view
}
}