ITI0011:praktikum 11 N8

Tagasi ITI0011 lehele.

Üldine

Praktikum: 13.11.2014 kell 8:00

Koodinäide

Kimp.java <source lang="java"> import javafx.application.Application; import javafx.event.EventHandler; import javafx.event.EventType; import javafx.scene.Scene; import javafx.scene.input.MouseEvent; import javafx.scene.layout.BorderPane; import javafx.scene.layout.Pane; import javafx.scene.paint.Color; import javafx.scene.shape.Polyline; import javafx.stage.Stage;

public class Kimp extends Application {

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

@Override public void start(Stage primaryStage) throws Exception { BorderPane root = new BorderPane(); Scene scene = new Scene(root, 500, 500);

Pane drawPane = new Pane(); root.setCenter(drawPane);

primaryStage.setScene(scene); primaryStage.show(); // class MyHandler implements EventHandler<MouseEvent> { // handle() // } // EventHandler<MouseEvent> myHandler = new MyHandler(); EventHandler<MouseEvent> myHandler = new EventHandler<MouseEvent>() {

@Override public void handle(MouseEvent event) { if (event.getEventType() == MouseEvent.MOUSE_DRAGGED) { System.out.println("drag:" + event.getX() + ", " + event.getY()); // drag // get the last line from out app ?? // add current point to the line } else if (event.getEventType() == MouseEvent.MOUSE_PRESSED) { System.out.println("press"); // press // create a new line // add current point to the line // add line to our application (into draw pane) } } };

drawPane.addEventHandler(MouseEvent.MOUSE_DRAGGED, myHandler); drawPane.addEventHandler(MouseEvent.MOUSE_PRESSED, myHandler); /*drawPane.addEventHandler(MouseEvent.MOUSE_DRAGGED, (event) -> { // draw line });*/ /*drawPane.addEventHandler(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {

@Override public void handle(MouseEvent arg0) { // TODO Auto-generated method stub

} });*/

// press: // create a new line Polyline line = new Polyline(); // add line to app drawPane.getChildren().add(line); // add a point to the line line.getPoints().add(10.0); // x line.getPoints().add(10.0); // y

// drag: // drawPane.getChildren() -> list // line = last line from getChildren()

// add another point to the line line.getPoints().add(100.0); // x line.getPoints().add(90.0); // y

// create another line line = new Polyline(); line.setStroke(Color.RED); drawPane.getChildren().add(line); line.getPoints().add(66.0); // x line.getPoints().add(12.0); // y

line.getPoints().add(67.0); // x line.getPoints().add(13.0); // y

line.getPoints().add(69.0); // x line.getPoints().add(15.0); // y }

} </source>