JavaFX 2.0 :: Correct Way To Make Stage Respect Its Scene Minimum Size?
Jun 25, 2014
I noticed that all my stages can be resized to zero size regardless of their contained scene, which is very ugly. How do I keep them from doing that? Is there some sort of intelligent way to bind the stage's min size to the size of the scene so that no part of the scene is cut off?
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Sep 18, 2014
I am looking for a way to find a resize animation for an application I'm developing. I found this answer but I figure there could be a better method out there,
Java - How do I create a Resize animation for JavaFX stage? - Stack Overflow
I am just looking to select something in a list, then press a button which would enable the animation and enlarge the stage. This will happen twice.
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Oct 21, 2014
I want to create a slot machine in NetBeans, with JavaFX library (without using JavaFX Scene Builder) but i have some problems to create UI.
I created algorithm already but without visuals.
Now my code is:
public class BEST extends Application {
private ImageView var; //init imageview of images
public static void main(String[] args) {
launch(args);
[Code] ....
createbottom(); and creategr(); i wrote already (and my program creates grid pane of random images with double dimension array, random and imageview) and program runs, but i don t know how to keep track of credits balance,in the same time to create new random gridpane of images and to get rid of every gridpane.
Here is creategr();
private GridPane creategr(){
final GridPane creategr = new GridPane();
int[][] newarray=new int[3][3];
int w=100;
for(int i=0; i<3; i++){
for(int j=0; j<3;j++)
[Code] ....
Button "SPIN" is created in createbottom();.
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Jan 23, 2015
I would like to ask you about possibility to restore javafx 8 app from iconified mode (setIconified(true)) to regular size via shorcut for example: Ctrl + Shift + Ins I use Windows 7 and jdk 1.8.0_40 beta.
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Mar 27, 2015
i have very critical problem in my collage project i have try many code but still i cant solve this problem, i want to display image on jlabel or jpanel with respect of components size without use of drawimage method
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Feb 28, 2014
I am using JSF 2 & Richfaces 4
My input text box should accept only 1 character.
<h:inputText id="empid" value="#{details.val}" size="1" />
Set the size as 1, still it showing more size in the screen.
Apart from size =1, any other place to set the size of the text box?
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Aug 14, 2014
I am developing JavaFX application. I have requirement like that javafx application should be always on top. I could not find an option to make it always on top.
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Aug 29, 2014
I'm trying to set up a splash screen where a native splash screen is shown initially and then replaced with the stage from my preloader. This is fairly simple to do. I use the below code to get everything lined up properly.
private void alignStage(Stage stage) {
SplashScreen splashScreen = SplashScreen.getSplashScreen();
if (splashScreen != null) {
// Align the stage based on the current splash location
Rectangle bounds = splashScreen.getBounds();
stage.setX(bounds.getX());
stage.setY(bounds.getY());
[Code] ....
The problem I'm having is that my Stage isn't actually shown by the time the commented event gets fired. The API for onShown says:
Called just after the Window is shown.
My guess is the window has transitioned to being shown, but there's a slight delay until it gets rendered on screen. If that's a decent assumption, is there a reliable way I can make sure my preloader stage is visible on screen before I hide the native splash?
The best option I can think of so far is to delay hiding the native splash until the preloader gets the BEFORE_START notification. This works (no flicker), but, since both splash screens are actually visible for a while, using a transparent splash doesn't work very well (which actually isn't too big of a deal).
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Jan 15, 2015
I develop a desktop soft use javafx8, and remove default border (e.g. title and close/min/max button), now use mouse left key click the taskbar icon is nothing,i want click the taskbar icon,if stage it's show then hidden, if stage it's hidden then show it,the problem is I can't capture any mouse click event,so i can't show or hidden my stage.
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Mar 12, 2015
Have have just started working with JavaFX and SceneBuilder having been a long time Swing developer.
My first foray into the world of JavaFX involves building a rather simple desktop application to parse text based log files with regular expressions.
Currently I am working on the main window for this application. I built a scene in SceneBuilder using a BorderPane for my root.
I placed a TitledPane which contains a TableView in the center section of the BorderPane and a VBox which contains several Buttons in the right section of the BorderPane. When I view the layout in SceneBuilder using the Preview menu item to show the preview in a Window, SceneBuilder shows the scene laid out exactly as it is in the work are and as I would like it laid out.
When I close SceneBuilder and go back to my IDE (Eclipse) and build and run the application the scene is displayed in a window differently than in SceneBuilder preview. When the application executes the scene is laid out as if there has been something placed in the top section of the BorderPane, the TitledPane containing the TableView is centered in the window and the VBox containing the buttons are not aligned with the top of the TitledPane containing the TableView because it is as if there is a "null control" in the top section of the BorderPane.
Why is there a difference in the way SceneBuilder displays the scene and the way the executed application displays the scene?
Also, I recently made some changes to the layout of the controls in SceneBuilder (e.g. changed some padding and location of some controls in their containers and again the scene looks perfect in SceneBuilder but when I execute the application now some components in the container where I made the changes are truncated when the scene is displayed when the application executes.
It is almost as if SceneBuilder is interpreting the FXML one way and the JavaFX API during run time is interpreting the FXML another way.
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Apr 9, 2015
I am new in JavaFX, I download/installed JDK8 with NB. I am trying to save a scene as image (png or jpg), but the result png is blank.
Here is the Java simple code:
----------------------------------------------------------------------------
import java.io.File;
import static javafx.application.Application.launch;
import javafx.embed.swing.SwingFXUtils;
import javafx.print.PrinterJob;
import javafx.scene.Scene;
import javafx.scene.SnapshotParameters;
import javafx.scene.image.WritableImage;
[Code] ....
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May 15, 2014
My problem is simple. Just set busy cursor on a scene. The scenarios is like this: I have simple application with a button on it. When I click the button, I will:
1. Set mouse cursor to BUSY
2. Do some work
3. Set mouse cursor back to DEFAULT.
I search the web and found some sample codes to set cursor. But they don't satisfy my need. So I wrote a simple application:
public class MainFormApp extends Application {
@Override
public void start(Stage stage) throws Exception {
stage.initStyle(StageStyle.DECORATED);
Pane root = new Pane();
root.setPrefSize(500, 300);
Button btn = new Button("Click me");
[Code] ....
When I run application and click the button, cursor does not change to BUSY. I also tried to use Platform.runLater() but no luck.
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Jul 4, 2014
I am new to javafx and my goal is to basically just test if my java code works with Mysql. What I'm planning to do is to display one data of the sakila database into a Label named greetingLabel. And I can't seem to find where i went wrong so i'll show you my whole code.
Here is the main code for my controller class from scene builder:
package main;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
[Code] .....
Here is the error displayed when pressing the button
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
[Code] .....
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May 11, 2014
I have following methods, which I call from the Event Dispatcher Thread:
public void setTitle(String title) {
Platform.runLater(() -> stage.setTitle(title));}
public String getTitle() {
return stage.getTitle(); // <- Access from outside JFX App Thread ok?}
Is it thread-safe, when the getter-Method just return the value like the example show? Or must I create a Runnable, so stage.getTitle() is called inside the Java Application Thread? How I return the value then?
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Jun 6, 2015
I'm trying to follow the Scene Builder tutorials on a 3200 X 1800 screen which makes the size of the content pane 3'' x 2" ....
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Jun 3, 2015
I did an implementation which is an extension of javafx.scene.control.ComboBox
Inside I imported the Class ComboBoxListViewSkin
import com.sun.javafx.scene.control.skin.ComboBoxListViewSkin;
I think this might be the reason as this comboBox is not recognized at the import to the scene builder library. I can show up the import dialog of custom controls, but my custom ComboBox is not showing up. All other implementations are there correctly as they are loaded from my customControl.jar file
I use the ComboBoxListViewSkin for the functionality to scroll to an item in the combo as a user types a letter on the keyboard.
I do this by:
/**
* This method scrolls the itemView of the items to the first item starting
* with the given char or string
*
* @param pressedKey
*/
public void scrollToChar(String pressedKey) {
String value = pressedKey.toUpperCase();
for (Object userEntry : getItems()) {
[Code] ....
I really need to show up my custom Combo in the scenebuilder, as otherwise the rest of my fxml is not editable in sceneBuilder 2.0 ....
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Nov 28, 2014
I thought I had a simple idea for creating a control that would let me get some of the behavior of a card pane. This is the entire control:
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Node;
[Code] ....
The idea is pretty simple; extend StackPane, add an active property, bind the visible and managed properties of the pane to the active property, and, whenever the active property is changed to true, iterate sibling nodes de-activating any siblings that are also of the type Card.
However, this doesn't work with Scene Builder. While trying to debug, I created an ExtStackPane:
import javafx.collections.ListChangeListener;
import javafx.scene.Node;
import javafx.scene.layout.StackPane;
public class ExtStackPane extends StackPane {
{
getChildren().addListener((ListChangeListener<Node>) c -> {
System.out.println("ExtStackPane children change: " + c.toString());
});
}
}
All this does is log list change events. However, I was very surprised by the output when working in Scene Builder. I added both controls to Scene Builder and did the following:
0) Added an ExtStackPane
1) Added a Card to the ExtStackPane
2) Added another Card to the ExtStackPane
3) Added a Label to the first Card
4) Added a Label to the second Card
5) Changed the text of the first Label to Hello
6) Changed the text of the second Label to World
7) Set the first Card to active
8) Set the second Card to active
I get the following output:
1)
ExtStackPane children change: { [Card@5b9067b3] added at 0 }
2)
ExtStackPane children change: { [Card@6b6328bd] added at 0 }
ExtStackPane children change: { [Card@6aca8cc5] added at 1 }
[Code] ....
This is what things look like in Scene Builder:
Does Scene Builder recreate the entire hierarchy every time I make a small change? Here's an application that does the same as the manual steps I performed in Scene Builder:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;
public class CardApplication extends Application {
[Code] ....
The output when running the above is:
1)
ExtStackPane children change: { [Card@6dfaa767] added at 0 }
2)
ExtStackPane children change: { [Card@6aa2c411] added at 1 }
[Code] ....
The behavior is obviously a lot different than when I'm working with the control in Scene Builder. What Scene Builder is doing to change the behavior of my Card control so much? Does my Card control break some rule(s) I'm not aware of?
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Mar 21, 2015
Lets say I have a desire to convert and entered value to Centigrade or Fahrenheit and that I have two Radio Buttons to designate the type of conversion with the Answer posted to a TextField on Scene Two from a button click event on Scene One ok Now I would like to convert the value in the TextField on Scene Two to Kelvin and reflect the value on Scene Three in a TextField by clicking a button on Scene Two
lets say I have 4 FXML files sceneONE sceneTWO and scenMain and I created 4 controllers ControllerONE and MasterController
So far I can navigate to the different scens with just the MasterController code below...
BUT because I have two FXML files I can not capture the value in the first FXML file and pass it to the second scene
This project is my attempt to adapt the FXML style code from this web site
Switching to Different Screens in JavaFX and FXML | JavaFXTutorials
Which uses this code to switch scenes
//get reference to the button's stage stage=(Stage) btnS1.getScene().getWindow();
//load up OTHER FXML document
root = FXMLLoader.load(getClass().getResource("ATTwo.fxml"));
But will not permit variable transfer due to scope of variables which reside in two different FXML files
public class MasterController implements Initializable{@FXML public Button btnS1;
@FXML public Button btnS2;
@FXML public Label lblS1;
@FXML public Label lblS2;
@FXML public TextField txfS1;
@FXML public TextField txfS2;
@FXML public AnchorPane root;
[Code] .....
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Apr 23, 2015
I'm trying to implement a scene with a ScrollPane in which the user can drag a node around and scale it dynamically. I have the dragging and scaling with the mouse wheel working as well as a reset zoom.
Here's my issue:
I'm having trouble with the calculations to fit the node to the width of the parent.
If I zoom in or out, the fit to width does not work.
If I change the window size after running fitWidth() once, the fit to width does not work the second time.
Here is my code as an SSCCE and how it works...
1. (works) Mouse wheel will zoom in and out around the mouse pointer
2. (works) Left or right mouse press to drag the rectangle around
3. (works) Left double-click to reset the zoom
4. (doesn't work) Right double-click to fit the width
My calculations to re-position the rectangle to the upper left of the pane and fit it (i.e. scale it up or down) to the width of the parent are incorrect.
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.beans.property.DoubleProperty;
[Code] ....
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Sep 9, 2014
I'm using Scene Builder 2.0 and have added an ImageView to the parent AnchorPane. I've added my PNG files for the app icon and the various buttons. I select the ImageView in Scene Builder and then crawl the filesystem to the project package folder and select the PNG for the Image. The assigned image is displayed in the Imageview in Scene Builder in both design mode and Preview mode.
While everything else shows up properly when the app is executed, the image assigned to the ImageView does not display.
From the FXML file:
<ImageView fx:id="ivBRULogo" fitHeight="64.0" fitWidth="64.0" layoutX="14.0" layoutY="14.0" pickOnBounds="true" preserveRatio="true" AnchorPane.leftAnchor="14.0" AnchorPane.topAnchor="14.0">
<image>
<Image url="@BRU_PE_B_64.png" />
</image>
</ImageView>
What might be occurring between the compiled app and what Scene Builder generates?
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May 20, 2014
I have a question with this gui project I am building, I have gotten the code to work in very basic forms such as the main part of calculations and etc. But now I am in the phase of validation to make sure the textboxes aren't empty and are in the correct format. I have done alot research already. I would like to use a Joptionpane to warn the user of an invalid entry. But I have tried many different methods and I can't seem to get them to work.
private void calculateActionPerformed(java.awt.event.ActionEvent evt) {
double loanAmt;
int years;
boolean validData;
double rate,total,calcRate,payment,amount,numMonths,totalPayment,paymentRounded,numMonthsRounded;
[Code] .....
When ran I get these errors: (only copied a few of the main lines)
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: "p"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1241)
at java.lang.Double.parseDouble(Double.java:540)
at car.loan.NewJFrameCarloan.calculateActionPerformed(NewJFrameCarloan.java:228)
at car.loan.NewJFrameCarloan.access$500(NewJFrameCarloan.java:17)
at car.loan.NewJFrameCarloan$6.actionPerformed(NewJFrameCarloan.java:106)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
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May 10, 2015
The code:
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.BorderPane;
[Code] ....
run (when window height > 700px ) :
HTMLEditor default height is 670px, the other area (green color) is not filled,why?
HTMLEditor 高度总是670px, 怎么把HTMLEditor 填充满窗口?
这是一个bug吗?
is it bug?
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Jan 4, 2014
Currently working on a simple file processing problem, namely, reorder a set of strings (called bid phrases) in terms of the score value associated to them in descending order.
My code outputs everything in ASCENDING order.
How to twist HashMap values around?
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
[Code].....
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May 13, 2014
I have a Die class that extends Label. It has a SimpleIntegerProperty called faceValue. In another class I have an ObservableArrayList of Die called dice and a FilteredList of all the die in dice with a faceValue of 2. The Problem is that when I update the faceValue (ie. roll()) the filteredlist doesn't update with the Die that faceValue=2. I believe the reason is that the filteredlist updates when a ListChangeListener is fired. If i add, subtract elements from dice I don't have a problem but how do I make it so that updating the faceValue on the die counts as a ListChange, or is there even a way to do that.
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Sep 27, 2014
I have a TextArea and want to set a linear-gradient as background, which works fine:
.text-area {
-fx-background-color: linear-gradient(to bottom, red 0%, blue 100%);
}
The problem is that if the TextArea contains much text (and long scrollbars) it is nearly only red. Only if you scroll down to the bottom, it becomes blue.
I want the red-blue gradient always look the same, no matter how much text there is.
In HTML there's something like background-attachment: fixed, which would do the trick, but not so in JavaFX.
Can I achieve it nonetheless. Preferably without any ugly workarounds, like a transparent TextArea within another Pane where the wrapping Pane has the gradient.
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Apr 26, 2015
Here is my code. Obviously this doesn't do a lot but that's only because I abstracted out the problem so there are not many lines to decipher.
Java Code:
import java.util.Scanner;
class threadOne extends threadTwo {
public static void main(String[] args) {
threadTwo threadTwoObj = new threadTwo();
threadTwoObj.start();
while (!userInput.equals("exit")) {
[Code] ....
What its supposed to do: When the user returns "exit" in the console it is supposed to break out of both while loops in both threads.
What it actually does: breaks out of the while loop in threadOne and not in threadTwo.
Basically the idea is to have a thread running doing computation and another thread able to query it for updates or interact to make changes to the flow. This will be useful, among other ways, for the sorts of problems where finding a solution is easy but where a better solution can always be found with more time. So for example finding directions on a map. Its easy to find a solution, but if you search longer you can find a faster route, if you search longer still than faster still.
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