package jira;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.NodeOrientation;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.TextAlignment;
import javafx.stage.Stage;

public class RT26137 extends Application {

    double width = 300, height = 600;
    public static void main(String[] args) {
        launch(args);
    }

    private void drawCanvas(Canvas canvas) {
        GraphicsContext gc = canvas.getGraphicsContext2D();
        gc.setFill(Color.YELLOW);
        gc.fillRect(0, 0, width, height);
        gc.setFont(new Font(20));
        gc.beginPath();
        gc.moveTo(0, 0);
        gc.lineTo(80, 80);
        gc.stroke();
        gc.setTextAlign(TextAlignment.LEFT);
        gc.strokeText("Text.", 4, 60);
        gc.setFill(Color.BLACK);
        gc.fillText("line1111\nline222\nline", 10, 100);
        gc.setTextAlign(TextAlignment.CENTER);
        gc.fillText("line1111\nline222\nline", 80, 200);
        gc.setTextAlign(TextAlignment.RIGHT);
        gc.fillText("line1111\nline222\nline", 190, 300);

        gc.setTextAlign(TextAlignment.LEFT);
        gc.fillText("small make to fit in 50px", 10, 400, 50);
        gc.setTextAlign(TextAlignment.CENTER);
        gc.fillText("small make to fit in 50px", 40, 450, 50);
        gc.setTextAlign(TextAlignment.RIGHT);
        gc.fillText("small make to fit in 50px", 80, 500, 50);


        gc.setFill(Color.RED);
        gc.fillOval(4, 60, 4, 4);
        gc.fillOval(10, 100, 4, 4);
        gc.fillOval(80, 200, 4, 4);
        gc.fillOval(190, 300, 4, 4);
        gc.fillOval(10, 400, 4, 4);
        gc.fillOval(40, 450, 4, 4);
        gc.fillOval(80, 500, 4, 4);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        final Canvas canvas = new Canvas(width, height);
        final Canvas canvasRTL = new Canvas(width, height);

        canvasRTL.setNodeOrientation(NodeOrientation.RIGHT_TO_LEFT);
        drawCanvas(canvas);
        drawCanvas(canvasRTL);

        HBox root = new HBox(canvas, canvasRTL);
        root.setSpacing(10);
        root.setPadding(new Insets(10));
        Scene scene = new Scene(root);
        scene.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
            @Override
            public void handle(KeyEvent event) {
                if (event.getCode() == KeyCode.ENTER) {
                    if (canvas.getEffectiveNodeOrientation()==NodeOrientation.LEFT_TO_RIGHT) {
                        canvas.setNodeOrientation(NodeOrientation.RIGHT_TO_LEFT);
                    } else {
                        canvas.setNodeOrientation(NodeOrientation.LEFT_TO_RIGHT);
                    }
                }
            }
        });
        canvas.effectiveNodeOrientationProperty().addListener(new ChangeListener<NodeOrientation>() {
            @Override
            public void changed(
                    ObservableValue<? extends NodeOrientation> observable,
                    NodeOrientation oldValue, NodeOrientation newValue) {
                System.out.println("changing to " + newValue + " " + canvas.getEffectiveNodeOrientation());
                drawCanvas(canvas);
            }
        });
        primaryStage.setScene(scene);
        primaryStage.show();
    }

}