src/main/java/com/example/lab1/ConverterController.java - master - Shalva/Lab1_Converter

src/main/java/com/example/lab1/ConverterController.java

70 строк2 KB

Kvaratskheliia Shalva

Добавлен исходный код проекта Lab1_Converter

14 июн 2026, 16:42

14 июн 2026, 16:42ece3e5b

package com.example.lab1;

import javafx.collections.FXCollections;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.paint.Color;

import java.net.URL;
import java.util.ResourceBundle;

public class ConverterController implements Initializable {

    @FXML private TextField inputField;
    @FXML private ComboBox<String> fromComboBox;
    @FXML private ComboBox<String> toComboBox;
    @FXML private Label resultLabel;

    private ConverterModel model;

    @Override
    public void initialize(URL url, ResourceBundle resourceBundle) {
        model = new ConverterModel();

        String[] units = {"МЕТРЫ", "КИЛЛОМЕТРЫ", "МИЛЛИМЕТРЫ"};
        fromComboBox.setItems(FXCollections.observableArrayList(units));
        toComboBox.setItems(FXCollections.observableArrayList(units));

        fromComboBox.getSelectionModel().selectFirst();
        toComboBox.getSelectionModel().select(1);

        String boxStyle = "-fx-font-size: 18px; -fx-text-fill: #A8C7FA; -fx-font-weight: bold; -fx-border-color: #A8C7FA;" +
                "-fx-border-radius: 8.0; -fx-background-radius: 8.0";
        fromComboBox.setStyle(boxStyle);
        toComboBox.setStyle(boxStyle);
    }

    @FXML
    private void handleConvertButtonClick() {
        String inputText = inputField.getText().trim();

        if (inputText.isEmpty()) {
            showError("ВЫ НИЧЕГО НЕ ВВЕЛИ!");
            return;
        }

        try {
            inputText = inputText.replace(',', '.');
            double value = Double.parseDouble(inputText);

            String fromUnit = fromComboBox.getValue();
            String toUnit = toComboBox.getValue();

            double result = model.convert(value, fromUnit, toUnit);

            resultLabel.setTextFill(Color.BLACK);
            resultLabel.setText(String.format("%.4f %s = %.4f %s", value, fromUnit, result, toUnit));

        } catch (NumberFormatException e) {
            showError("ОШИБКА: ВВЕДИТЕ ЧИСЛО!");
        }
    }

    private void showError(String message) {
        resultLabel.setTextFill(Color.RED);
        resultLabel.setText(message);
    }
}