None of the events are working in eclipse for JavaFX
Question
I am trying to integrate a GUI created in JavaFX SceneBuilder into a java program. I have some buttons, sliders, and checkboxes inside of an Accordion container and the events for those objects never get handled. It always gives this error:
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.Trampoline.invoke(Unknown Source)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
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)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at javafx.event.Event.fireEvent(Unknown Source)
at javafx.scene.Scene$ClickGenerator.postProcess(Unknown Source)
at javafx.scene.Scene$ClickGenerator.access$7900(Unknown Source)
at javafx.scene.Scene$MouseHandler.process(Unknown Source)
at javafx.scene.Scene$MouseHandler.access$1500(Unknown Source)
at javafx.scene.Scene.impl_processMouseEvent(Unknown Source)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.notifyMouse(Unknown Source)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$141(Unknown Source)
at com.sun.glass.ui.win.WinApplication$$Lambda$37/1109371569.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
How do I register these events? I have researched on the JavaFX website: http://docs.oracle.com/javafx/2/events/convenience_methods.htm and other parts of the web but I cannot find a way to get the code to catch the events.
Here is my FXML file:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.media.*?>
<?import javafx.scene.image.*?>
<?import javafx.scene.*?>
<?import javafx.scene.text.*?>
<?import javafx.scene.effect.*?>
<?import javafx.scene.canvas.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="583.0" prefWidth="900.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="edu.westga.PictureDrawer.main.MainClass">
<children>
<Accordion fx:id="theMainMenu" onMouseClicked="#useMenu" prefHeight="583.0" prefWidth="202.0">
<panes>
<TitledPane text="FILE">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="225.0" prefWidth="200.0">
<children>
<Group>
<children>
<Button id="uploadImageButton" fx:id="uploadImageButton" layoutX="22.0" layoutY="38.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="159.0" text="Upload" />
<Label alignment="CENTER" layoutX="19.0" layoutY="14.0" prefHeight="25.0" prefWidth="164.0" text="Open From File" textAlignment="CENTER">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
<Separator layoutY="64.0" prefHeight="12.0" prefWidth="183.0" />
<Group>
<children>
<TextField id="imageLinkBox" fx:id="imageLinkBox" alignment="CENTER" layoutX="7.0" layoutY="95.0" prefHeight="50.0" prefWidth="182.0" promptText="(insert web link)">
<font>
<Font name="System Bold" size="10.0" />
</font>
</TextField>
<Button id="downloadImageButton" fx:id="downloadImageButton" layoutX="19.0" layoutY="156.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="159.0" text="Download" />
<Label alignment="CENTER" layoutX="17.0" layoutY="70.0" prefHeight="25.0" prefWidth="164.0" text="Open From Internet" textAlignment="CENTER">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
<Separator layoutX="1.0" layoutY="189.0" prefHeight="12.0" prefWidth="200.0" />
<Group>
<children>
<Button fx:id="replaceBothImages" layoutX="22.0" layoutY="386.0" mnemonicParsing="false" onMouseClicked="#replaceImages" prefHeight="25.0" prefWidth="159.0" text="Replace Images" />
<CheckBox fx:id="replaceEditedImage" layoutX="17.0" layoutY="422.0" mnemonicParsing="false" onMouseClicked="#toggleSelection" prefHeight="20.0" prefWidth="169.0" text="Replace Edited Image">
<font>
<Font size="14.0" />
</font>
</CheckBox>
<ImageView id="loadedImagePreview" fx:id="loadedImagePreview" cache="true" fitHeight="163.0" fitWidth="192.0" layoutX="5.0" layoutY="201.0" pickOnBounds="true">
<cursor>
<Cursor fx:constant="DISAPPEAR" />
</cursor>
<image>
<Image url="@no.jpg" />
</image>
</ImageView>
</children>
</Group>
</children>
</AnchorPane>
</content>
</TitledPane>
<TitledPane text="EDIT">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Group layoutX="-5.0" layoutY="1.0">
<children>
<Label alignment="CENTER" layoutX="4.0" layoutY="1.0" prefHeight="38.0" prefWidth="144.0" text="Pixels Per Width">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
<Slider fx:id="pixelsPerWidthSlider" layoutX="7.0" layoutY="36.0" onScroll="#changePixelPerSquare" prefHeight="23.0" prefWidth="186.0">
<effect>
<DropShadow spread="0.16" />
</effect>
</Slider>
<Label fx:id="pixelsPerWidth" alignment="CENTER" layoutX="151.0" layoutY="7.0" prefHeight="26.0" prefWidth="40.0" text="0">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
<Group layoutX="-5.0" layoutY="1.0">
<children>
<Label id="pixelsPerLength" fx:id="pixelsPerLength" alignment="CENTER" layoutX="150.0" layoutY="67.0" prefHeight="26.0" prefWidth="42.0" text="0">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
<Slider id="pixelsPerLengthSlider" fx:id="pixelsPerLengthSlider" layoutX="7.0" layoutY="97.0" onScroll="#changePixelPerSquare" prefHeight="23.0" prefWidth="186.0" snapToTicks="true">
<effect>
<DropShadow spread="0.16" />
</effect>
</Slider>
<Label fx:id="pixelsPerLength" alignment="CENTER" layoutX="4.0" layoutY="61.0" prefHeight="38.0" prefWidth="144.0" text="Pixels Per Length">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
</children>
</AnchorPane>
</content>
</TitledPane>
<TitledPane text="SETTINGS">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Group>
<children>
<Group>
<children>
<RadioButton fx:id="jpegRadioButton" layoutX="28.0" layoutY="41.0" mnemonicParsing="false" onMouseClicked="#changeRadioButtonSetValue" prefHeight="36.0" prefWidth="51.0" selected="true" text="JPEG" textAlignment="CENTER">
<toggleGroup>
<ToggleGroup fx:id="fileType" />
</toggleGroup></RadioButton>
<RadioButton fx:id="pngRadioButton" layoutX="110.0" layoutY="41.0" mnemonicParsing="false" onMouseClicked="#changeRadioButtonSetValue" prefHeight="36.0" prefWidth="51.0" text="PNG" textAlignment="CENTER" toggleGroup="$fileType" />
<RadioButton fx:id="gifRadioButton" layoutX="110.0" layoutY="77.0" mnemonicParsing="false" onMouseClicked="#changeRadioButtonSetValue" prefHeight="36.0" prefWidth="51.0" selected="true" text="GIF" textAlignment="CENTER" toggleGroup="$fileType" />
<RadioButton fx:id="jpgRadioButton" layoutX="28.0" layoutY="77.0" mnemonicParsing="false" onMouseClicked="#changeRadioButtonSetValue" prefHeight="36.0" prefWidth="51.0" text="JPG" textAlignment="CENTER" toggleGroup="$fileType" />
</children>
</Group>
<Label alignment="CENTER" layoutX="1.0" layoutY="14.0" prefHeight="29.0" prefWidth="184.0" text="Default File Type for Save" textAlignment="CENTER" textOverrun="LEADING_WORD_ELLIPSIS">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
<Separator layoutY="114.0" prefHeight="12.0" prefWidth="200.0" />
<Group>
<children>
<Label alignment="CENTER" layoutX="16.0" layoutY="129.0" prefHeight="17.0" prefWidth="169.0" text="Zoom">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
<Group layoutY="13.0">
<children>
<Label alignment="CENTER" layoutX="9.0" layoutY="137.0" prefHeight="27.0" prefWidth="84.0" text="Edited Image">
<font>
<Font name="System Bold" size="12.0" />
</font>
</Label>
<Slider fx:id="zoomEditedImageSlider" layoutX="4.0" layoutY="167.0" majorTickUnit="10.0" minorTickCount="1" onMouseClicked="#changeZoomLevel" prefHeight="33.0" prefWidth="193.0" snapToTicks="true">
<effect>
<DropShadow spread="0.16" />
</effect>
</Slider>
<Label fx:id="zoomEditedImagePercentage" alignment="CENTER" layoutX="110.0" layoutY="138.0" prefHeight="25.0" prefWidth="85.0" text="0">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
<Group layoutY="13.0">
<children>
<Slider fx:id="zoomOriginalImageSlider" layoutX="4.0" layoutY="229.0" onScroll="#changeZoomLevel" prefHeight="33.0" prefWidth="193.0">
<effect>
<DropShadow spread="0.16" />
</effect>
</Slider>
<Label alignment="CENTER" layoutX="9.0" layoutY="202.0" prefHeight="27.0" prefWidth="84.0" text="Original Image">
<font>
<Font name="System Bold" size="12.0" />
</font>
</Label>
<Label fx:id="zoomOriginalImagePercentage" alignment="CENTER" layoutX="107.0" layoutY="204.0" prefHeight="25.0" prefWidth="85.0" text="0">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
</children>
</Group>
</children>
</Group>
<Separator layoutY="271.0" prefHeight="12.0" prefWidth="200.0" />
<Group>
<children>
<Label alignment="CENTER" layoutX="8.0" layoutY="283.0" prefHeight="29.0" prefWidth="184.0" text="Show/Hide Image Views" textAlignment="CENTER" textOverrun="LEADING_WORD_ELLIPSIS">
<font>
<Font name="System Bold" size="14.0" />
</font>
</Label>
<Group>
<children>
<Label alignment="CENTER" layoutY="312.0" prefHeight="27.0" prefWidth="92.0" text="Original Image">
<font>
<Font name="System Bold" size="12.0" />
</font>
</Label>
<ToggleButton fx:id="toggleOriginalImageVisibilty" layoutX="100.0" layoutY="313.0" mnemonicParsing="false" onMouseClicked="#toggleOrignialImageVisibility" selected="true" text="Show/Hide" />
</children>
</Group>
<Group>
<children>
<Label alignment="CENTER" layoutY="349.0" prefHeight="27.0" prefWidth="92.0" text="Edited Image">
<font>
<Font name="System Bold" size="12.0" />
</font>
</Label>
<ToggleButton fx:id="toggleEditedImageVisibility" layoutX="100.0" layoutY="350.0" mnemonicParsing="false" onMouseClicked="#toggleEditedImageVisibility" text="Show/Hide" />
</children>
</Group>
</children>
</Group>
</children>
</AnchorPane>
</content>
</TitledPane>
</panes>
<cursor>
<Cursor fx:constant="HAND" />
</cursor>
</Accordion>
<SplitPane dividerPositions="0.5" layoutX="202.0" prefHeight="583.0" prefWidth="698.0">
<items>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="578.0" prefWidth="345.0">
<children>
<ImageView fx:id="editedImage" blendMode="SRC_ATOP" fitHeight="561.0" fitWidth="322.0" layoutX="12.0" layoutY="13.0" mouseTransparent="true" pickOnBounds="true">
<image>
<Image url="@no%20takebacks.jpg" />
</image></ImageView>
</children>
</AnchorPane>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
<children>
<ImageView fx:id="originalImage" blendMode="SRC_ATOP" fitHeight="561.0" fitWidth="322.0" layoutX="12.0" layoutY="13.0" mouseTransparent="true" pickOnBounds="true">
<image>
<Image url="@no%20know%20answer.jpg" />
</image></ImageView>
</children>
</AnchorPane>
</items>
</SplitPane>
</children>
</Pane>
Here is my code:
import java.io.IOException;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
import javafx.fxml.FXML;
import javafx.scene.control.Accordion;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.Slider;
import javafx.scene.control.TextField;
import javafx.scene.control.ToggleButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
public class MainClass extends Application {
@FXML
private Accordion theMainMenu;
@FXML
private TextField imageLinkBox;
@FXML
private Label pixelsPerWidth;
@FXML
private Slider pixelsPerWidthSlider;
@FXML
private RadioButton gifRadioButton;
@FXML
private RadioButton jpgRadioButton;
@FXML
private Slider zoomEditedImageSlider;
@FXML
private ImageView editedImage;
@FXML
private ToggleButton toggleOriginalImageVisibilty;
@FXML
private ImageView loadedImagePreview;
@FXML
private Label zoomOriginalImagePercentage;
@FXML
private Slider pixelsPerLengthSlider;
@FXML
private RadioButton pngRadioButton;
@FXML
private Button downloadImageButton;
@FXML
private Button replaceBothImages;
@FXML
private Label zoomEditedImagePercentage;
@FXML
private Button uploadImageButton;
@FXML
private Label pixelsPerLength;
@FXML
private ToggleButton toggleEditedImageVisibility;
@FXML
private CheckBox replaceEditedImage;
@FXML
private RadioButton jpegRadioButton;
@FXML
private Slider zoomOriginalImageSlider;
@FXML
private ImageView originalImage;
@FXML
private ToggleGroup fileType;
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
try {
Pane root = FXMLLoader.load(getClass().getClassLoader().getResource(".\\edu\\westga\\PictureDrawer\\main\\test.fxml"));
Scene scene = new Scene(root);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
return;
}
}
@FXML
public void useMenu(ActionEvent event) {
System.out.println("hello8");
}
@FXML
public void replaceImages(ActionEvent event) {
System.out.println("hello7");
}
@FXML
public void toggleSelection(ActionEvent event) {
System.out.println("hello6");
}
@FXML
public void changePixelPerSquare(ActionEvent event) {
System.out.println("hello5");
}
@FXML
public void changeRadioButtonSetValue(ActionEvent event) {
System.out.println("hello4");
}
@FXML
public void changeZoomLevel(ActionEvent event) {
System.out.println("hello3");
if (event.getSource() == this.zoomEditedImageSlider) {
this.setValueOfLabel();
}
}
private void setValueOfLabel() {
this.zoomEditedImageSlider.valueChangingProperty().addListener(new ChangeListener<Boolean>() {
@Override
public void changed(
ObservableValue<? extends Boolean> observableValue,
Boolean wasChanging,
Boolean changing) {
String valueString = zoomEditedImageSlider.getValue() + "%";
if (wasChanging) {
zoomEditedImagePercentage.setText(valueString);
}
}
});
}
@FXML
public void toggleOrignialImageVisibility(ActionEvent event) {
System.out.println("hello2");
}
@FXML
public void toggleEditedImageVisibility(ActionEvent event) {
System.out.println("hello1");
}
}
1 answers
solution1
2 ACCPTED 2014-09-21 20:16:27
Problem
In the FXML, you are using onMouseClicked="#nameOfTheMethod" and in your Controller, you have methods as
@FXML
public void nameOfTheMethod(ActionEvent event) {
//Logic
}
whenever the method is Invoked, it passes a MouseEvent , where as your method is expecting an ActionEvent and therefore java.lang.IllegalArgumentException: argument type mismatch
Solution
- You can change the
onMouseClickedforButtonstoonActioninside the FXML - For other controls, change the method declaration inside the controllers. Change the parameter from
ActionEventtoMouseEvent
NB Move the changeListener added to zoomEditedImageSlider inside setValueOfLabel() to initialize method of the controller. Adding of listeners to controls should be done inside initialize.
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