Is it possible to put ImageView on Canvas in JavaFX?
Solution 1
You can stack an ImageView
on top of a Canvas
. Use a StackPane
. You can later add mouse listeners to the ImageView
.
Is there any possibilities with or without
ImageView
(buttons or any controls?) or is it restricted to use controls over canvas?
All controls including Button
, ImageView
and Canvas
itself extend from Node
and can be used to add in the StackPane
.
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.image.ImageView;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class Main extends Application {
int count = 1;
@Override
public void start(Stage stage) {
StackPane root = new StackPane();
Scene s = new Scene(root, 400, 400, Color.BLACK);
final Canvas canvas = new Canvas(300, 300);
GraphicsContext gc = canvas.getGraphicsContext2D();
gc.setFill(Color.BLUE);
gc.fillRect(10, 10, 300, 300);
ImageView image = new ImageView("https://cdn0.iconfinder.com/data/icons/toys/256/teddy_bear_toy_6.png");
// Listener for MouseClick
image.setOnMouseClicked(e -> {
Stage popup = new Stage();
popup.initOwner(stage);
popup.show();
});
root.getChildren().addAll(canvas, image);
stage.setScene(s);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Output:
- Scene has Black Background
- Canvas has Blue Background
- ImageView is the bear.
Solution 2
If you just want add button, image ... on the top of your canvas you should use StackPane. You first add your canvas and then you can add Button or whatever you want.
StackPane stack = new StackPane();
stack.getChildren().addAll(yourCanvas, yourButton);
You should read this for a better understanding of Layouting with JavaFX.
Comments
-
Viz_Kid almost 2 years
I am a newbie to javafx. I am developing an application in which I have a canvas and I have drawn several images in it. I want to add an
ImageView
on my canvas and implement a popup while clicking on the ImageView?Is there any possibilities with or without
ImageView
(buttons or any controls?) or is it restricted to use controls over canvas?I need some suggestions please.