I am building a application in JavaFx 2.0 and would like to, when the application is deployed, to have it show up on the center of the window of a browser. I have looked for this topic in google and yahoo and found nothing. Any help is greatly appreciated.
Look at the source code for the JavaFX Ensemble example. The Ensemble application is configured to run to fill a browser window, no matter the size of the window. The way it is done is by configuration in the JavaScript which launches the app as well as via css styling of the div the application is embedded in.
Here is an extract of the relevant parts of the html.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JavaFX 2.0 - Ensemble</title>
<SCRIPT src="http://java.com/js/dtjava.js"></SCRIPT>
<script>
function javafxEmbed_ensemble() {
dtjava.embed(
{
id : 'ensemble',
url : 'Ensemble.jnlp',
placeholder : 'javafx-app-placeholder',
width : '100%',
height : '100%',
jnlp_content : '...'
},
{
javafx : '2.0+'
},
{}
);
}
dtjava.addOnloadCallback(javafxEmbed_ensemble);
</script>
<style>
html, body, #javafx-app-placeholder, #ensemble-app {
margin: 0;
overflow: hidden;
padding: 0;
width: 100%;
height: 100%;
}
</style>
</head>
<body><div id='javafx-app-placeholder'></div></body>
</html>
If you need something other than 100% coverage, you can the 100% tags to, say 75%, and adjust the css styling to get centering in the page with the margins you want.
The current Java packaging tools (e.g. the javafxpackager utility), do not allow specification of percentange widths. I've created a feature request for this in the javafx jira - you can create an account there to view the request. If you use those tools to generate your deployment html, then you might have to modify the deployment html by hand or by a post-processing ant script, as can be seen in the build.xml for the Ensemble sample application.
You can use combination of HBox and VBox panels in your FXML. Hier is my tested code:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="panel1" xmlns:fx="http://javafx.com/fxml" fx:controller="app.MainController">
<HBox alignment="CENTER" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<VBox alignment="CENTER">
<Pane fx:id="panel2"></Pane> <!-- YOUR CENTERED CONTENT HERE! -->
</VBox>
</HBox>
</AnchorPane>
The 'panel1' will stretch in the browser area. So the HBox and VBox will also. Because they have 'center' attributes for their childeren, the 'panel2' will be centered.
Use this FXML
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>
<AnchorPane id="AnchorPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml">
<children>
<HBox id="HBox" alignment="CENTER" spacing="5.0" AnchorPane.bottomAnchor="213.0" AnchorPane.leftAnchor="168.0" AnchorPane.rightAnchor="168.0" AnchorPane.topAnchor="214.0">
<children>
<GridPane id="gridPane1" alignment="CENTER" hgap="2.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" vgap="2.0">
<children>
<Label id="label1" alignment="CENTER_RIGHT" contentDisplay="RIGHT" text="Username" GridPane.columnIndex="0" GridPane.rowIndex="0" />
<Label id="label2" alignment="CENTER_RIGHT" text="Password" GridPane.columnIndex="0" GridPane.rowIndex="1" />
<TextField id="textField1" fx:id="userid" prefWidth="200.0" GridPane.columnIndex="1" GridPane.rowIndex="0" />
<PasswordField id="passwordField1" fx:id="password" prefWidth="200.0" GridPane.columnIndex="1" GridPane.rowIndex="1" />
<Button id="button1" alignment="CENTER_RIGHT" text="Signin" GridPane.columnIndex="1" GridPane.halignment="RIGHT" GridPane.rowIndex="2" />
</children>
<columnConstraints>
<ColumnConstraints halignment="CENTER" hgrow="NEVER" maxWidth="-Infinity" minWidth="-Infinity" percentWidth="0.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
</columnConstraints>
<padding>
<Insets bottom="2.0" left="4.0" right="4.0" top="2.0" />
</padding>
<rowConstraints>
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
</children>
</HBox>
</children>
</AnchorPane>
Might solve your problem
Try to use a StackPane as container. It will center all nodes it includes.
Torsten
Related
Id like to place a label and a button (and a text field) in a horizontal layout. This works, but the baselines are unaligned. How to fix that?
The expected result is that the red lines (baselines of each control) are at the same height.
This is the FXML:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.HBox?>
<HBox prefHeight="100.0" prefWidth="400.0" spacing="10.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label text="Label" />
<Button mnemonicParsing="false" text="Button" />
<TextField text="Lorem Ipsum" />
</children>
</HBox>
Add an alignment attribute to the HBox with value "BASELINE_LEFT":
<HBox alignment="BASELINE_LEFT" prefHeight="100.0" prefWidth="400.0" spacing="10.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label text="Label" />
<Button mnemonicParsing="false" text="Button" />
<TextField text="Lorem Ipsum" />
</children>
</HBox>
My first approach (which works fine)
I have two panes, gridPane (inner one) and borderPane (outer one). The grid pane is just a row of a few labels, so it is very low. It is designed with the Scene Builder. It gets loaded with the FXMLLoader and put into the center of the border pane which is created with the classical
BorderPane borderPane = new BorderPane();
The size of the window is as expected, nothing is too big or too small.
The second approach
I use Scene Builder to create the borderPane as well, but the grid pane does not get put into it right away in the Scene Builder.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/RootLayout.fxml"));
borderPane = (BorderPane) loader.load();
// ...
... and later on the gridPane:
borderPane.setCenter(gridPane);
When I run the app now, the window is wider and a lot higher.
Side note:
The borderPane's min/pref/max widths and heights all USE_COMPUTED_SIZE. The labels all use only USE_COMPUTED_SIZE. The ´gridPane` has 8 columns, each having min/pref width of 100. But the displayed window is > 1400 px wide and almost 800 px high. Like I said: it works fine if the border pane is created the classical way.
Here are the FXML files for both panes:
RootLayout.fxml (BorderPane, a.k.a. outer pane)
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.BorderPane?>
<BorderPane xmlns:fx="http://javafx.com/fxml/1">
</BorderPane>
PlacesOverview.fxml (GridPane, a.k.a. inner pane)
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.GridPane?>
<GridPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<columnConstraints>
<ColumnConstraints minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
<ColumnConstraints halignment="CENTER" minWidth="100.0" prefWidth="100.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints />
</rowConstraints>
<children>
<Label text="Name" GridPane.halignment="LEFT" />
<Label text="Montag" GridPane.columnIndex="1" GridPane.halignment="CENTER" />
<Label text="Dienstag" GridPane.columnIndex="2" GridPane.halignment="CENTER" />
<Label text="Mittwoch" GridPane.columnIndex="3" GridPane.halignment="CENTER" />
<Label text="Donnerstag" GridPane.columnIndex="4" GridPane.halignment="CENTER" />
<Label text="Freitag" GridPane.columnIndex="5" GridPane.halignment="CENTER" />
<Label text="Samstag" GridPane.columnIndex="6" GridPane.halignment="CENTER" />
<Label text="Sonntag" GridPane.columnIndex="7" GridPane.halignment="CENTER" />
</children>
</GridPane>
I'm extending javafx.stage.Popup to display a popup message. The entire app works fine on Windows and Ubuntu but on Mac Popups go behind the current stage when the app is full screen. I've tried using z-index,.toFront(), setting owner window and everything. But the popups just never showup! Same problem is with javafx.stage.FileChooser. Since the app must be fullscreen all the time, what is the solution?
EDIT: In another page,the textfield has cursor blinking in fullscreen but does not receive typed keys! And this happens ONLY in full screen! If I lose fullscreen, the textfield recieves typed keys. Quite annoying :( Please suggest if I should file a bug or something
I've figured out workaround for popup but problem persists for DirectoryChooser/FileChooser.
This is the class that extends Popup:
public class PopupDisplay extends Popup
{
String Title=new String("Information");
String Prompt=new String("Prompt Text");
#FXML
private AnchorPane anchorMain;
#FXML
private Label lblTitle=new Label();
#FXML
private Font x1;
#FXML
private Label lblPrompt=new Label();
#FXML
private Button btnOk;
#FXML
private GridPane gridMain;
#FXML
private HBox hboxTitle;
static PopupDisplay instance;
private ColorDxDesktop application;
public void show(Stage stage, String titleKey,String promptKey, Locale enLocale)
{
AnchorPane root;
FXMLLoader loader=new FXMLLoader();
ResourceBundle rb;
Prompt=promptKey;
Title=titleKey;
try
{
loader.setLocation(getClass().getResource("/com/sc/colordx/resources/"));
rb=ResourceBundle.getBundle("com.sc.colordx.resources.lang.Popup",application.getLocale());
loader.setResources(rb);
PopupController.prompt=Prompt;
PopupController.title=Title;
root = (AnchorPane)loader.load(getClass().getResource("/com/sc/colordx/presentation/Popup.fxml").openStream());
getScene().setRoot(root);
PopupController popupController=loader.getController();
Rectangle2D screenBounds = Screen.getPrimary().getVisualBounds();
root.setPrefWidth(application.getStage().getWidth());
root.setPrefHeight(application.getStage().getHeight());
Node n=root.getChildren().get(0);
n.setLayoutX(screenBounds.getWidth()/2.5);
n.setLayoutY((screenBounds.getHeight()/2.5));
//root.toFront();
show(stage);
}
catch (IOException ex)
{
ex.printStackTrace();
}
}
public static PopupDisplay getInstance()
{
return instance;
}
#FXML
private void hide(MouseEvent event)
{
this.hide();
}
public void showInProgress()
{
PopupController.showInProgress();
}
And this is the FXML for Popup:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="AnchorPane" fx:id="anchorMain" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" minHeight="-Infinity" minWidth="-Infinity" prefHeight="768.0" prefWidth="1024.0" styleClass="mainFxmlClass" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="com.sc.colordx.controller.PopupController">
<children>
<GridPane id="GridPane" fx:id="gridMain" alignment="CENTER" layoutX="309.0" layoutY="330.0" minWidth="400.0" style="-fx-background-color:black;" styleClass="visibleWindow, gridpane, gridpane-boder" vgap="20.0">
<children>
<Label fx:id="lblPrompt" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefWidth="271.0" text="%keyPrompt" textFill="WHITE" textOverrun="CLIP" wrapText="true" GridPane.columnIndex="0" GridPane.halignment="CENTER" GridPane.rowIndex="1" GridPane.valignment="CENTER">
<font>
<Font name="System Bold" size="14.0" fx:id="x1" />
</font>
<GridPane.margin>
<Insets bottom="6.0" left="6.0" right="6.0" top="6.0" />
</GridPane.margin>
</Label>
<HBox id="HBox" fx:id="hboxButtons" alignment="CENTER" spacing="7.0" style="" styleClass="hbox" GridPane.columnIndex="0" GridPane.hgrow="ALWAYS" GridPane.rowIndex="2" GridPane.vgrow="ALWAYS">
<children>
<Button fx:id="btnOk" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onMouseClicked="#exitOkay" text="%keyYes" HBox.hgrow="ALWAYS" />
<Button id="btnOk" fx:id="btnCancel" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onMouseClicked="#hide" text="%keyNo" HBox.hgrow="ALWAYS" />
</children>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
<stylesheets>
<URL value="#../resources/css/Popup.css" />
</stylesheets>
</HBox>
<ProgressIndicator fx:id="progress" cache="true" cacheHint="QUALITY" progress="0.0" visible="false" GridPane.columnIndex="0" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="300.0" />
</GridPane.margin>
</ProgressIndicator>
</children>
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
</columnConstraints>
<padding>
<Insets />
</padding>
<rowConstraints>
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
</children>
<stylesheets>
<URL value="#../resources/css/Popup.css" />
</stylesheets>
</AnchorPane>
The same thing I was getting with Popup while running JavaFx application in MAC so what I did was created new Stage (dummy/invisible with height and width = 0) with initStyle(StageStyle.UTILITY); and bind my popup with that. Everytime I need to display popup I use dummyStage.show(); and popup.toFront(); so it will cause a trick to handle my problem in mac.
I have the following code to load the fxml file. I want to change the width of the button. I am able to access the two labels using fxmlLoader.getNamespace().get("id"), but for some reason I don't see the button inside ObservableMap returned by getNamespace(). Why is it so/
FXML file
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>
<GridPane fx:controller="org.netbeans.modules.mavenproject1.controller.KeyController" xmlns:fx="http://javafx.com/fxml" >
<padding>
<Insets top="5" right="5" bottom="5" left="5"/>
</padding>
<children>
<Button maxHeight="45.0" maxWidth="45.0" minHeight="45.0" minWidth="45.0" mnemonicParsing="false" prefHeight="45.0" prefWidth="45.0" style="" styleClass="alphabet-button" text="~" textAlignment="CENTER" textOverrun="ELLIPSIS">
<graphic>
<GridPane alignment="TOP_LEFT">
<padding>
<Insets top="1" right="1" bottom="1" left="1"/>
</padding>
<children>
<Label text="" fx:id="mainTextLabel" GridPane.columnIndex="0" GridPane.rowIndex="0" />
<Label text="" fx:id="shiftTextLabel" GridPane.columnIndex="0" GridPane.rowIndex="1" />
</children>
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="20.0" prefWidth="20.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="20.0" prefWidth="20.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="20.0" prefHeight="20.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="20.0" prefHeight="20.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
</graphic>
<stylesheets>
<URL value="#../styles/keyboard.css" />
</stylesheets>
</Button>
</children>
</GridPane>
Controller Constructor
public Key(){
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("/fxml/key.fxml"));
fxmlLoader.setControllerFactory(new Callback<Class<?>, Object>(){
#Override
public Object call(Class<?> param){
return keyController = new KeyController();
}
});
try {
keyView = (Node) fxmlLoader.load();
} catch (IOException exception) {
throw new RuntimeException(exception);
}
mainTextLabel = (Label) fxmlLoader.getNamespace().get("mainTextLabel");
shiftTextLabel = (Label) fxmlLoader.getNamespace().get("shiftTextLabel");
getChildren().add(keyView);
}
I created this as a wiki post. I found the solution by trial and error ( seems like the best way to learn programming ), but if somebody can show me a location on oracle docs where the following detail is listed, you have my upvote.
Answer
Just add fx:id to the button.
Before
<Button maxHeight="45.0" maxWidth="45.0" minHeight="45.0" minWidth="45.0" mnemonicParsing="false" prefHeight="45.0" prefWidth="45.0" style="" styleClass="alphabet-button" text="~" textAlignment="CENTER" textOverrun="ELLIPSIS">
After
<Button fx:id="button" maxHeight="45.0" maxWidth="45.0" minHeight="45.0" minWidth="45.0" mnemonicParsing="false" prefHeight="45.0" prefWidth="45.0" style="" styleClass="alphabet-button" text="~" textAlignment="CENTER" textOverrun="ELLIPSIS">
I'm new in JavaFX and have a little troubles:
I have an TabPane with several Tabs and I wanna make Tab titles invisible. So, user should not change Tabs by clicking on titles, but it will be changed in different way from menu..
How to make this Tab titles invisible/hidden? That's the question. I don't wanna hide whole Tabs or disable or anything like that, just titles.
Or maybe you have another, completely different idea, how to solve this in JavaFX. Maybe with another controls???
Thanks for any clue.
If you are not using Tabs then you don't need TabPane.
You can just introduce a list of content panes and switch them according to menu commands.
You can find a code example in next question: How can I implement the functionality of awt.CardLayout in my javaFX 2.0 application?
Conclusion of my research: This is not possible to do this in JavaFX. TabPane captions can be located on the top, left, right and bottom of the control, but cannot be hidden.
You can make this by wrapping TabPane in AnchorPane (root container) and setting up TabPane's topAnchor to negative number as much as needed.
Java code:
...
AnchorPane.setTopAnchor(myTabPane, -29.0);
AnchorPane.setBottomAnchor(myTabPane, 0);
AnchorPane.setLeftAnchor(myTabPane, 0);
AnchorPane.setRightAnchor(myTabPane, 0);
...
Also in FXML:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.*?>
<?import javafx.scene.layout.*?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<TabPane fx:id="myTabPane" prefHeight="200.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="-29.0">
<tabs>
<Tab fx:id="tab1" text="Tab 1">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Label text="Tab 1" />
<Button layoutX="35.0" layoutY="2.0" mnemonicParsing="false" text="Go to Tab 2 (non-functional currently)" />
</children>
</AnchorPane>
</content>
</Tab>
<Tab fx:id="tab2" text="Tab 2">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Label text="Tab 2" />
<Button layoutX="35.0" layoutY="2.0" mnemonicParsing="false" text="Go to Tab 1 (non-functional currently)" />
</children>
</AnchorPane>
</content>
</Tab>
</tabs>
</TabPane>
</children>
</AnchorPane>