private void valueChanged(boolean fireEvent) {
valueText.setText(valueOf(current));
valueText.setCursorPosition(valueText.getText().length());
if (fireEvent) {
for (NumberSelectorListener listener : listeners) listener.changed(current);
}
}
private void addTextFieldListeners() {
valueText.addListener(
new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
textChanged();
}
});
valueText.addListener(
new FocusListener() {
@Override
public void keyboardFocusChanged(FocusEvent event, Actor actor, boolean focused) {
if (focused == false) {
valueChanged(true);
getStage().setScrollFocus(null);
}
}
});
valueText.addListener(
new InputListener() {
@Override
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
getStage().setScrollFocus(valueText);
return true;
}
@Override
public boolean scrolled(InputEvent event, float x, float y, int amount) {
if (amount == 1) decrement(true);
else increment(true);
return true;
}
@Override
public boolean keyDown(InputEvent event, int keycode) {
if (keycode == Keys.ENTER) {
valueChanged(true);
return true;
}
return false;
}
});
}
/**
* Creates integer or float number selector depending on precision, see {@link #setPrecision(int)}
*
* @param name may be null
*/
public NumberSelector(
NumberSelectorStyle style,
final Sizes sizes,
String name,
float initialValue,
float min,
float max,
float step,
int precision) {
this.current = initialValue;
this.max = max;
this.min = min;
this.step = step;
valueText =
new VisValidatableTextField() {
@Override
public float getPrefWidth() {
return sizes.numberSelectorFieldSize;
}
};
valueText.setProgrammaticChangeEvents(false);
setPrecision(precision);
valueText.setText(valueOf(current));
VisTable buttonsTable = new VisTable();
VisImageButton upButton = new VisImageButton(style.up);
VisImageButton downButton = new VisImageButton(style.down);
buttonsTable.add(upButton).height(sizes.numberSelectorButtonSize).row();
buttonsTable.add(downButton).height(sizes.numberSelectorButtonSize);
labelCell = add(new VisLabel(""));
setSelectorName(name);
add(valueText).fillX().expandX().height(sizes.numberSelectorButtonSize * 2).padRight(1);
add(buttonsTable).width(sizes.numberSelectorButtonsWidth);
addButtonsListeners(upButton, downButton);
addTextFieldListeners();
}
/**
* Sets precision of this selector. Precision defines how many digits after decimal point can be
* entered. By default this is set to 0, meaning that only integers are allowed. Setting precision
* to 1 would allow 0.0, precision = 2 would allow 0.00 and etc.
*/
public void setPrecision(final int precision) {
if (precision < 0) throw new IllegalStateException("Precision can't be < 0");
this.precision = precision;
valueText.getValidators().clear();
valueText.addValidator(boundsValidator); // Both need the bounds check
if (precision == 0) {
valueText.addValidator(Validators.INTEGERS);
valueText.setTextFieldFilter(new DigitsOnlyFilter());
} else {
valueText.addValidator(Validators.FLOATS);
valueText.addValidator(
new InputValidator() {
@Override
public boolean validateInput(String input) {
int dotIndex = input.indexOf('.');
if (dotIndex == -1) return true;
return input.length() - input.indexOf('.') - 1 <= precision;
}
});
valueText.setTextFieldFilter(new FloatDigitsOnlyFilter(true));
}
}
private void textChanged() {
if (valueText.getText().equals("")) current = min;
else if (checkInputBounds(valueText.getText())) current = Float.parseFloat(valueText.getText());
}