potenciometro

/*
 *
bem10jfx.blogspot.com
 */
package potenciometrojfx;

import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Orientation;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.control.TextArea;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.stage.WindowEvent;
import jssc.SerialPort;
import static jssc.SerialPort.MASK_RXCHAR;
import jssc.SerialPortEvent;
import jssc.SerialPortEventListener;
import jssc.SerialPortException;
import jssc.SerialPortList;

/**
 *
 * @author kml javafx arduino
 */
public class PotenciometroJFX extends Application {

    Stage stage;
    Group gp;
    Scene scene;
    Slider slider1;

    Label lb = new Label("PORTAS COM");
    ChoiceBox choiseBox;
    Button btports = new Button("Conectar");
    TextArea ta = new TextArea();
    SerialPort serialPort;
    double vl1, vl2;

    public void arranque() {

        final String[] serialPortNames = SerialPortList.getPortNames();
        for (String name : serialPortNames) {
            choiseBox.getItems().addAll(name);
        }

    }

    public void Buttons_Actions() {
        btports.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                try {

                    if (choiseBox.getValue().toString().length() >= 1) {

                        System.out.println("valores de portas " + choiseBox.getValue());
                        serialPort = new SerialPort("" + choiseBox.getValue());
                        lb.setText("conectado a porta: " + choiseBox.getValue());
                        ta.setText("Conectando ao Arduino\n");
                        try {

                            serialPort.openPort();
                            serialPort.setParams(9600, 8, 1, 0);
                            serialPort.setEventsMask(SerialPort.MASK_RXCHAR);
                            serialPort.addEventListener(new SerialPortEventListener() {
                                @Override
                                public void serialEvent(SerialPortEvent serialPortEvent) {
                                    if (serialPortEvent.isRXCHAR()) {
                                        try {
                                            ta.appendText(serialPort.readString(serialPortEvent.getEventValue()));
                                            String ch = ta.toString();
                                            if (ch.endsWith("\r\n")) {
                                                ta.appendText(ch.substring(0, ch.indexOf("\r\n")));
                                            }
                                        } catch (SerialPortException e) {
                                            System.out.println("SerialEvent error:" + e.toString());
                                        }
                                    }
                                }
                            });
                        } catch (Exception e) {
                            System.out.println("error nao conexao" + e.getMessage());
                            lb.setText("Error critico nao \ndetectado portas:"
                                    + "" + choiseBox.getValue() + "\nError de confirmaçao:" + e);
                        }
                    } else {

                        System.out.println("error nao tem porta escolhida");
                    }

                } catch (Exception se) {
                    System.out.println("error" + se);
                    lb.setText("nao conectado a nenhuma porta\nerror:" + se);
                }

            }
        });

    }

    @Override
    public void start(Stage primaryStage) {

        stage = new Stage();
        gp = new Group();
        scene = new Scene(gp, 400, 240, Color.SILVER);
        stage.setScene(scene);
        // lb label
        choiseBox = new ChoiceBox();

        choiseBox.setLayoutY(20);
        choiseBox.setLayoutX(10);
        lb.setLayoutX(choiseBox.getLayoutX() + 25);
        lb.setLayoutY(3);
        arranque();
        gp.getChildren().addAll(choiseBox, lb, btports);

        btports.setLayoutX(choiseBox.getHeight() + 95);
        btports.setLayoutY(20);
        Buttons_Actions();

        slider1 = new Slider(0, 255, 0);

        slider1.layoutXProperty().bind(scene.widthProperty().divide(8));
        slider1.layoutYProperty().bind(scene.heightProperty().divide(4));
        slider1.setShowTickMarks(true);
        slider1.setShowTickLabels(true);
        slider1.setOrientation(Orientation.VERTICAL);

        gp.getChildren().addAll(slider1, ta);
        //ta

        ta.layoutXProperty().bind(slider1.layoutXProperty().add(75));
        ta.layoutYProperty().bind(scene.heightProperty().divide(5));
        ta.setMaxWidth(200);
        ta.prefHeight(150);
        ta.setStyle(" -fx-background-color: #000000;");

        slider1.valueProperty().addListener(new ChangeListener<Number>() {
            public void changed(ObservableValue<? extends Number> ov,
                    Number old_val, Number new_val) {
                // double value =Double.parseDouble(String.format("%.0f", new_val.toString()));
                // double valueX=value/51.5;

                try {
                    serialPort.writeBytes(String.format("%.0f", new_val).getBytes());
                    System.out.println("getwritebytes=" + String.format("%.0f", new_val)
                            + "pulso ");

                } catch (SerialPortException ex) {
                    lb.setText("\"Nao conectado\"");
                    System.out.println("Nao conectado"+ex);

                }

            }
        });

        stage.show();
        stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
            @Override
            public void handle(WindowEvent event) {
                try {
                    serialPort.closePort();
                } catch (SerialPortException ex) {
                    Logger.getLogger(PotenciometroJFX.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        });
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);

    }

}