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package jcgp.gui.settings.parameters;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.control.Control;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyEvent;
import jcgp.backend.resources.parameters.Parameter;
import jcgp.backend.resources.parameters.ParameterStatus;
import jcgp.gui.settings.SettingsPane;
/**
* This extension of GUIParameter uses a TextField to display
* the value of a IntegerParameter. It cannot be constructed
* directly - instead, use GUIParameter.create().
* <br><br>
* See {@link GUIParameter} for more information.
*
* @author Eduardo Pedroni
*/
public class GUIIntegerParameter extends GUIParameter<Number> {
private TextField textField;
/**
* This default-visibility constructor is intended for use
* by the factory method only.
*
*/
GUIIntegerParameter(Parameter<Number> parameter, SettingsPane sp) {
super(parameter, sp);
}
@Override
protected Control makeControl() {
textField = new TextField(String.valueOf(parameter.get()));
textField.setStyle(VALID_PARAMETER_STYLE);
textField.setAlignment(Pos.CENTER_RIGHT);
return textField;
}
@Override
protected void setControlListeners() {
/* filter keypresses and ignore anything that is not a number */
textField.addEventFilter(KeyEvent.KEY_TYPED, new EventHandler<KeyEvent>() {
@Override
public void handle( KeyEvent t ) {
char ch = t.getCharacter().toCharArray()[t.getCharacter().toCharArray().length - 1];
if (!(ch >= '0' && ch <= '9')) {
t.consume();
}
}
});
/* pass the TextField value back to the parameter whenever it gets
* modified, provided it is not empty and the experiment isn't running */
textField.textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(
ObservableValue<? extends String> observable,
String oldValue, String newValue) {
if (!newValue.isEmpty() && !settingsPane.isExperimentRunning()) {
parameter.set(Double.parseDouble(newValue));
settingsPane.revalidateParameters();
}
}
});
/* if the TextField loses focus and is empty, set it to the current
* value of the parameter */
textField.focusedProperty().addListener(new ChangeListener<Boolean>() {
@Override
public void changed(
ObservableValue<? extends Boolean> observable,
Boolean oldValue, Boolean newValue) {
if (!newValue && textField.getText().isEmpty()) {
textField.setText(String.valueOf(parameter.get()));
}
}
});
}
@Override
protected void setValidityStyle() {
// update the Control's style and tooltip based on the status of the parameter
if (parameter.getStatus() == ParameterStatus.INVALID) {
textField.setStyle(BASE_TEXT_STYLE + INVALID_PARAMETER_STYLE);
textField.setTooltip(tooltip);
tooltip.setText(parameter.getStatus().getDetails());
} else if (parameter.getStatus() == ParameterStatus.WARNING
|| parameter.getStatus() == ParameterStatus.WARNING_RESET) {
textField.setStyle(BASE_TEXT_STYLE + WARNING_PARAMETER_STYLE);
textField.setTooltip(tooltip);
tooltip.setText(parameter.getStatus().getDetails());
} else {
textField.setStyle(BASE_TEXT_STYLE + VALID_PARAMETER_STYLE);
textField.setTooltip(null);
}
}
@Override
public void refreshValue() {
textField.setText(String.valueOf((parameter).get()));
}
}
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