/Java/How to switch between two stylesheets in javafx.

How to switch between two stylesheets in javafx.

import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.geometry.Pos; import javafx.scene.control.Button; import javafx.scene.control.Label; import javafx.scene.control.CheckBox; import javafx.scene.layout.HBox; import javafx.scene.layout.VBox; import javafx.scene.layout.BorderPane; import javafx.stage.Stage; import javafx.geometry.Insets; /** * * @author writing */ public class StyleForm extends Application { final String style1 = "/javafxcsscontrols/StyleForm.css"; final String style2 = "/javafxcsscontrols/StyleForm2.css"; final String feedbackLabelText = "StyleSheet Loaded:"; final String borderStyle = "borders"; final String borderStyle2 = "borders"; @Override public void start(final Stage primaryStage) { final BorderPane pane = new BorderPane(); final VBox controlBox = new VBox(10); HBox buttonBox = new HBox(10); HBox randomControlBox = new HBox(10); HBox feedbackBox = new HBox(10); final Scene scene = new Scene(pane, 700, 500); //Sets the scene to use the first stylesheet scene.getStylesheets().add(style1); //Sets the VBox to use the fontstyle from the stylesheet controlBox.getStyleClass().add("fontStyle"); final Label feedbackLabel = new Label(feedbackLabelText + style1); Label borderLabel = new Label("Here's some random text"); //When the checkbox is checked or unchecked an inline style is set for //the controlBox VBox layout pane around whether to show a border or not CheckBox borders = new CheckBox("Use Borders"); borders.setOnAction(new EventHandler() { @Override public void handle(ActionEvent e) { if (!controlBox.getStyle().contains("black")) { controlBox.setStyle("-fx-border-color: black;-fx-border-style: dashed;-fx-border-width: 2;"); } else { controlBox.setStyle("-fx-border-width: 0;"); } } }); //When the Button is clicked the current stylesheet is cleared from the scene. //It is replaced by the other stylesheet to change the look of the application. //The label tracks which stylesheet is being used Button changeStyleSheet = new Button("Change Style"); changeStyleSheet.setOnAction(new EventHandler() { @Override public void handle(ActionEvent e) { if (scene.getStylesheets().contains(style1)) { scene.getStylesheets().clear(); scene.getStylesheets().add(style2); feedbackLabel.setText(feedbackLabelText + style2); } else { scene.getStylesheets().clear(); scene.getStylesheets().add(style1); feedbackLabel.setText(feedbackLabelText + style1); } } }); buttonBox.setPadding(new Insets(10)); buttonBox.getChildren().add(changeStyleSheet); buttonBox.setAlignment(Pos.CENTER); randomControlBox.getChildren().add(borderLabel); randomControlBox.getChildren().add(borders); feedbackBox.setPadding(new Insets(10,10,1,0)); feedbackBox.getChildren().add(feedbackLabel); controlBox.getChildren().add(randomControlBox); pane.setPadding(new Insets(10,10,1,10)); pane.setTop(buttonBox); pane.setCenter(controlBox); pane.setBottom(feedbackBox); primaryStage.setTitle("Styling JavaFX Controls"); primaryStage.setScene(scene); primaryStage.show(); } /** * The main() method is ignored in correctly deployed JavaFX application. * main() serves only as fallback in case the application can not be * launched through deployment artifacts, e.g., in IDEs with limited FX * support. NetBeans ignores main(). * * @param args the command line arguments */ public static void main(String[] args) { launch(args); } }

Source: thoughtco.com

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