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

import javafx.beans.value.ObservableValue;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;
import javafx.scene.shape.Rectangle;

public class FXMLController implements Initializable
{ @FXML private Slider sliderA;
  @FXML private ComboBox<Integer> comboBoxB;
  @FXML private ScrollBar scrollBarC;
  @FXML private Spinner<Integer> spinnerD;
  @FXML private TextField textFieldE;

  @FXML private Label labelA;
  @FXML private Label labelB;
  @FXML private Label labelC;
  @FXML private Label labelD;
  @FXML private Label labelE;

  @FXML private Rectangle rectangleA;
  @FXML private Rectangle rectangleB;
  @FXML private Rectangle rectangleC;
  @FXML private Rectangle rectangleD;
  @FXML private Rectangle rectangleE;
    
  @Override
  public void initialize(URL location, ResourceBundle resources)
  { sliderA.setValue(50);
    sliderA.valueProperty().addListener(this::aChanged);
    for (int i = 0; i <= 100; i++) { comboBoxB.getItems().add(i);}
    comboBoxB.getSelectionModel().select(50);
    comboBoxB.getSelectionModel().selectedItemProperty().addListener(this::bChanged);
    scrollBarC.setValue(50);
    scrollBarC.valueProperty().addListener(this::cChanged);
    SpinnerValueFactory.IntegerSpinnerValueFactory valueFactory =
      new SpinnerValueFactory.IntegerSpinnerValueFactory(0, 100);
    valueFactory.setValue(50);
    spinnerD.setValueFactory(valueFactory);
    spinnerD.valueProperty().addListener(this::dChanged);
    textFieldE.setText("50");
    textFieldE.textProperty().addListener(this::eChanged);
  }
  private void aChanged(ObservableValue<? extends Number> observableValue, Number oldValue, Number newValue)
  { labelA.setText(Math.round(newValue.intValue()) + "");
    rectangleA.setHeight(newValue.intValue() * 5);
  }

  private void bChanged(ObservableValue<? extends Integer> observableValue, Integer oldValue, Integer newValue)
  { labelB.setText(Math.round(newValue.intValue()) + "");
    rectangleB.setHeight(newValue.intValue() * 5);
  }

  private void cChanged(ObservableValue<? extends Number> observableValue, Number oldValue, Number newValue)
  { labelC.setText(Math.round(newValue.intValue()) + "");
    rectangleC.setHeight(newValue.intValue() * 5);
  }

  public void dChanged(ObservableValue<? extends Integer> observable, Integer oldValue, Integer newValue)
  { labelD.setText(Math.round(newValue.intValue()) + "");
    rectangleD.setHeight(newValue.intValue() * 5);
  }

  public void eChanged(ObservableValue<? extends String> observable, String oldValue, String newValue)
  { int value;
    try { if (oldValue.length() == 0) {oldValue = labelE.getText();}
          value = Integer.parseInt(newValue);
          if (value > 100 || value < 0) { textFieldE.setText(oldValue);
                                          return;
                                        }
          rectangleE.setHeight(value * 5);
          labelE.setText(newValue);
        }
    catch (NumberFormatException e)
    { if (textFieldE.getText().length() > 0) { textFieldE.setText(oldValue); }
    }
  }
}