Clever Geek Handbook

Changing background color in javaFX canvas

Javafx canvas background The only solution I have right now is:

GraphicsContext gc = canvas.getGraphicsContext2D();
gc.setFill(Color.BLUE);
gc.fillRect(0, 0, canvas.getWidth(), canvas.getHeight());

Is there any other solution besides drawing a rectangle? I have searched in CSS but canvas doesn't have-fx-background-color

+4


source to share


1 answer


The canvas is essentially "empty" (ie transparent) unless you draw it. You can create a background effect by placing it in the layout panel and setting the background of the layout area:



import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class CanvasBackground extends Application {

    @Override
    public void start(Stage primaryStage) {
        Pane root = new Pane();

        StackPane holder = new StackPane();
        Canvas canvas = new Canvas(400,  300);

        holder.getChildren().add(canvas);
        root.getChildren().add(holder);

        holder.setStyle("-fx-background-color: red");
        Scene scene = new Scene(root, 600, 400);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}
+16


source






More articles:


All Articles