import javafx.geometry.Pos;
import javafx.application.Application;
import javafx.scene.*;
import javafx.scene.paint.*;
import javafx.scene.canvas.*;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.scene.control.Button;


public class Main extends Application {

    @Override
    public void start(Stage stage) {
    	gc = canvas.getGraphicsContext2D();
    	gc.setStroke(Color.BLACK);
    	gc.setLineWidth(3);

    	scene.setOnMousePressed(e->{
    		gc.beginPath();
    		gc.lineTo(e.getSceneX(),e.getSceneY()-300);
    		gc.stroke();
    	});

    	scene.setOnMouseDragged(e->{
    		gc.lineTo(e.getSceneX(),e.getSceneY()-300);
    		gc.stroke();
    	});


    	b1.setStyle("-fx-font-size: 30; -fx-border-color: black;");
    	canvas.setStyle("-fx-border-style: solid; -fx-border-width: 2;");

    	pane.setAlignment(Pos.TOP_CENTER);
    	pane.getChildren().add(b1);
    	drawing.getChildren().add(canvas);
    	drawing.setAlignment(Pos.BOTTOM_CENTER);
    	drawing.setStyle("-fx-border-color: black;");
    	pane.getChildren().add(drawing);



    	stage.setScene(scene);
    	stage.setResizable(false);
    	stage.show();
    }

    Button b1 = new Button("SAVE IMAGE");
    Canvas canvas = new Canvas(800,500);
    GraphicsContext gc;
    StackPane pane = new StackPane();
    StackPane drawing = new StackPane();
    Scene scene = new Scene(pane,800,800);

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




}