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package helloworld;

import com.sun.javafx.perf.PerformanceTracker;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.application.Launcher;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.stage.Stage;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.util.Duration;

public class GradientSwitchingtest extends Application {

private static final Stop[] stops1 =
            new Stop[]{new Stop(0, Color.BLACK), new Stop(1, Color.RED)};

private static final Stop[] stops2 =
            new Stop[]{new Stop(0, Color.BLACK), new Stop(1, Color.GREEN)};

    @Override public void start(Stage stage) {
        stage.setTitle("Hello CheckBox");
        stage.setWidth(100);
        stage.setHeight(200);
        final Group vbox = new Group();
        final Scene scene = new Scene(vbox);

        final Rectangle rect = new Rectangle();
        rect.setX(25);
        rect.setY(40);
        rect.setWidth(100);
        rect.setHeight(50);
        rect.setFill(Color.RED);
        ((Group)scene.getRoot()).getChildren().add(rect);
        stage.setScene(scene);
        stage.setVisible(true);

        final Timeline timeline = new Timeline();
        timeline.setCycleCount(Timeline.INDEFINITE);
        timeline.setAutoReverse(true);
        final KeyValue kv = KeyValue.keyValue(rect.xProperty(), 100);
        final KeyFrame kf = new KeyFrame(Duration.valueOf(1000), kv);
        timeline.getKeyFrames().add(kf);
        timeline.play();

        //VBox vbox = new VBox();
        //vbox.setSpacing(10);

//        for (int i=0; i<3; i++) {
//            CheckBox cb = new CheckBox((new Integer(i)).toString());
//            cb.setSelected(true);
//            cb.setLayoutY(i*25);
//            vbox.getChildren().add(cb);
//        }

        boolean toggle = true;
        for (int i=0; i<4000; i++) {
            Rectangle node = new Rectangle();
            node.setWidth(60);
            node.setHeight(20);
            if(toggle) {
                node.setFill(new LinearGradient(0.0f, 0.0f, 1.0f, 0.0f, true,
                    CycleMethod.NO_CYCLE, stops1));
                toggle = false;
            } else {
                node.setFill(new LinearGradient(0.0f, 0.0f, 1.0f, 0.0f, true,
                    CycleMethod.NO_CYCLE, stops2));
                toggle = true;
            }
            node.setLayoutY(80+i*25);
            vbox.getChildren().add(node);
        }



        ObservableList<Node> content = ((Group)scene.getRoot()).getChildren();
        //content.add(vbox);

        final Text text = new Text("??? fps");
        text.setFont(new Font(12));
        text.setLayoutX(50);
        text.setLayoutY(45);

        content.add(text);

        final PerformanceTracker tracker = PerformanceTracker.getSceneTracker(scene);

        final Timeline tlTracker = new Timeline();
        tlTracker.setCycleCount(Timeline.INDEFINITE);
        final KeyFrame kfTracker = new KeyFrame(
                Duration.valueOf(500),
                new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event){
                int fps = (int) Math.round(tracker.getInstantFPS());
                text.setContent("" + fps + " fps");
                text.setFill(text.getFill().equals(Color.BLACK)?Color.BLUE:Color.BLACK);
                System.err.println("FPS:" + fps);
            }
        });
        tlTracker.getKeyFrames().add(kfTracker);
        tlTracker.play();


        stage.setScene(scene);
        stage.setVisible(true);

    }

    private static Scene newScene() {
        Scene scene = new Scene(new Group());
        return scene;
    }


  public static void main(String[] args) {
    Launcher.launch(GradientSwitchingtest.class, args);
  }

}