javafx.scene.control.Spinner Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package javafx.scene.control;
import com.sun.javafx.scene.control.FakeFocusTextField;
import javafx.beans.property.StringProperty;
import javafx.scene.control.skin.SpinnerSkin;
import javafx.beans.NamedArg;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.value.WritableValue;
import javafx.collections.MapChangeListener;
import javafx.collections.ObservableList;
import javafx.scene.AccessibleAction;
import javafx.scene.AccessibleAttribute;
import javafx.scene.AccessibleRole;
import javafx.util.Duration;
import javafx.util.StringConverter;
import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.temporal.TemporalUnit;
import javafx.css.CssMetaData;
import javafx.css.converter.DurationConverter;
import javafx.css.Styleable;
import javafx.css.StyleableObjectProperty;
import javafx.css.StyleableProperty;
import javafx.css.SimpleStyleableObjectProperty;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* A single line text field that lets the user select a number or an object
* value from an ordered sequence. Spinners typically provide a pair of tiny
* arrow buttons for stepping through the elements of the sequence. The keyboard
* up/down arrow keys also cycle through the elements. The user may also be
* allowed to type a (legal) value directly into the spinner. Although combo
* boxes provide similar functionality, spinners are sometimes preferred because
* they don't require a drop down list that can obscure important data, and also
* because they allow for features such as
* {@link SpinnerValueFactory#wrapAroundProperty() wrapping}
* and simpler specification of 'infinite' data models (the
* {@link SpinnerValueFactory SpinnerValueFactory}, rather than using a
* {@link javafx.collections.ObservableList ObservableList} data model like many
* other JavaFX UI controls.
*
* A Spinner's sequence value is defined by its
* {@link SpinnerValueFactory SpinnerValueFactory}. The value factory
* can be specified as a constructor argument and changed with the
* {@link #valueFactoryProperty() value factory property}. SpinnerValueFactory
* classes for some common types are provided with JavaFX, including:
*
*
* - {@link SpinnerValueFactory.IntegerSpinnerValueFactory}
* - {@link SpinnerValueFactory.DoubleSpinnerValueFactory}
* - {@link SpinnerValueFactory.ListSpinnerValueFactory}
*
*
* A Spinner has a TextField child component that is responsible for displaying
* and potentially changing the current {@link #valueProperty() value} of the
* Spinner, which is called the {@link #editorProperty() editor}. By default the
* Spinner is non-editable, but input can be accepted if the
* {@link #editableProperty() editable property} is set to true. The Spinner
* editor stays in sync with the value factory by listening for changes to the
* {@link SpinnerValueFactory#valueProperty() value property} of the value factory.
* If the user has changed the value displayed in the editor it is possible for
* the Spinner {@link #valueProperty() value} to differ from that of the editor.
* To make sure the model has the same value as the editor, the user must commit
* the edit using the Enter key.
*
*
Example:
*
Spinner spinner = new Spinner(0, 10, 5);
*
* 
*
* @see SpinnerValueFactory
* @param The type of all values that can be iterated through in the Spinner.
* Common types include Integer and String.
* @since JavaFX 8u40
*/
public class Spinner extends Control {
// default style class, puts arrows on right, stacked vertically
private static final String DEFAULT_STYLE_CLASS = "spinner";
/** The arrows are placed on the right of the Spinner, pointing horizontally (i.e. left and right). */
public static final String STYLE_CLASS_ARROWS_ON_RIGHT_HORIZONTAL = "arrows-on-right-horizontal";
/** The arrows are placed on the left of the Spinner, pointing vertically (i.e. up and down). */
public static final String STYLE_CLASS_ARROWS_ON_LEFT_VERTICAL = "arrows-on-left-vertical";
/** The arrows are placed on the left of the Spinner, pointing horizontally (i.e. left and right). */
public static final String STYLE_CLASS_ARROWS_ON_LEFT_HORIZONTAL = "arrows-on-left-horizontal";
/** The arrows are placed above and beneath the spinner, stretching to take the entire width. */
public static final String STYLE_CLASS_SPLIT_ARROWS_VERTICAL = "split-arrows-vertical";
/** The decrement arrow is placed on the left of the Spinner, and the increment on the right. */
public static final String STYLE_CLASS_SPLIT_ARROWS_HORIZONTAL = "split-arrows-horizontal";
/* *************************************************************************
* *
* Constructors *
* *
**************************************************************************/
/**
* Constructs a default Spinner instance, with the default 'spinner' style
* class and a non-editable editor.
*/
public Spinner() {
getStyleClass().add(DEFAULT_STYLE_CLASS);
setAccessibleRole(AccessibleRole.SPINNER);
getEditor().setOnAction(action -> {
commitValue();
});
getEditor().editableProperty().bind(editableProperty());
value.addListener((o, oldValue, newValue) -> setText(newValue));
// Fix for RT-29885
getProperties().addListener((MapChangeListener) change -> {
if (change.wasAdded()) {
if (change.getKey() == "FOCUSED") {
setFocused((Boolean)change.getValueAdded());
getProperties().remove("FOCUSED");
}
}
});
// End of fix for RT-29885
focusedProperty().addListener(o -> {
if (!isFocused()) {
commitValue();
}
});
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.IntegerSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is Integer, i.e. Spinner<Integer>.
*
* @param min The minimum allowed integer value for the Spinner.
* @param max The maximum allowed integer value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
*/
public Spinner(@NamedArg("min") int min,
@NamedArg("max") int max,
@NamedArg("initialValue") int initialValue) {
// This only works if the Spinner is of type Integer
this((SpinnerValueFactory)new SpinnerValueFactory.IntegerSpinnerValueFactory(min, max, initialValue));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.IntegerSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is Integer, i.e. Spinner<Integer>.
*
* @param min The minimum allowed integer value for the Spinner.
* @param max The maximum allowed integer value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
* @param amountToStepBy The amount to increment or decrement by, per step.
*/
public Spinner(@NamedArg("min") int min,
@NamedArg("max") int max,
@NamedArg("initialValue") int initialValue,
@NamedArg("amountToStepBy") int amountToStepBy) {
// This only works if the Spinner is of type Integer
this((SpinnerValueFactory)new SpinnerValueFactory.IntegerSpinnerValueFactory(min, max, initialValue, amountToStepBy));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.DoubleSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is Double, i.e. Spinner<Double>.
*
* @param min The minimum allowed double value for the Spinner.
* @param max The maximum allowed double value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
*/
public Spinner(@NamedArg("min") double min,
@NamedArg("max") double max,
@NamedArg("initialValue") double initialValue) {
// This only works if the Spinner is of type Double
this((SpinnerValueFactory)new SpinnerValueFactory.DoubleSpinnerValueFactory(min, max, initialValue));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.DoubleSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is Double, i.e. Spinner<Double>.
*
* @param min The minimum allowed double value for the Spinner.
* @param max The maximum allowed double value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
* @param amountToStepBy The amount to increment or decrement by, per step.
*/
public Spinner(@NamedArg("min") double min,
@NamedArg("max") double max,
@NamedArg("initialValue") double initialValue,
@NamedArg("amountToStepBy") double amountToStepBy) {
// This only works if the Spinner is of type Double
this((SpinnerValueFactory)new SpinnerValueFactory.DoubleSpinnerValueFactory(min, max, initialValue, amountToStepBy));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.LocalDateSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is LocalDate, i.e. Spinner<LocalDate>.
*
* @param min The minimum allowed LocalDate value for the Spinner.
* @param max The maximum allowed LocalDate value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
*/
Spinner(@NamedArg("min") LocalDate min,
@NamedArg("max") LocalDate max,
@NamedArg("initialValue") LocalDate initialValue) {
// This only works if the Spinner is of type LocalDate
this((SpinnerValueFactory)new SpinnerValueFactory.LocalDateSpinnerValueFactory(min, max, initialValue));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.LocalDateSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is LocalDate, i.e. Spinner<LocalDate>.
*
* @param min The minimum allowed LocalDate value for the Spinner.
* @param max The maximum allowed LocalDate value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
* @param amountToStepBy The amount to increment or decrement by, per step.
* @param temporalUnit The size of each step (e.g. day, week, month, year, etc).
*/
Spinner(@NamedArg("min") LocalDate min,
@NamedArg("max") LocalDate max,
@NamedArg("initialValue") LocalDate initialValue,
@NamedArg("amountToStepBy") long amountToStepBy,
@NamedArg("temporalUnit") TemporalUnit temporalUnit) {
// This only works if the Spinner is of type LocalDate
this((SpinnerValueFactory)new SpinnerValueFactory.LocalDateSpinnerValueFactory(min, max, initialValue, amountToStepBy, temporalUnit));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.LocalTimeSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is LocalTime, i.e. Spinner<LocalTime>.
*
* @param min The minimum allowed LocalTime value for the Spinner.
* @param max The maximum allowed LocalTime value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
*/
Spinner(@NamedArg("min") LocalTime min,
@NamedArg("max") LocalTime max,
@NamedArg("initialValue") LocalTime initialValue) {
// This only works if the Spinner is of type LocalTime
this((SpinnerValueFactory)new SpinnerValueFactory.LocalTimeSpinnerValueFactory(min, max, initialValue));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.LocalTimeSpinnerValueFactory}. Note that
* if this constructor is called, the only valid generic type for the
* Spinner instance is LocalTime, i.e. Spinner<LocalTime>.
*
* @param min The minimum allowed LocalTime value for the Spinner.
* @param max The maximum allowed LocalTime value for the Spinner.
* @param initialValue The value of the Spinner when first instantiated, must
* be within the bounds of the min and max arguments, or
* else the min value will be used.
* @param amountToStepBy The amount to increment or decrement by, per step.
* @param temporalUnit The size of each step (e.g. hour, minute, second, etc).
*/
Spinner(@NamedArg("min") LocalTime min,
@NamedArg("max") LocalTime max,
@NamedArg("initialValue") LocalTime initialValue,
@NamedArg("amountToStepBy") long amountToStepBy,
@NamedArg("temporalUnit") TemporalUnit temporalUnit) {
// This only works if the Spinner is of type LocalTime
this((SpinnerValueFactory)new SpinnerValueFactory.LocalTimeSpinnerValueFactory(min, max, initialValue, amountToStepBy, temporalUnit));
}
/**
* Creates a Spinner instance with the
* {@link #valueFactoryProperty() value factory} set to be an instance
* of {@link SpinnerValueFactory.ListSpinnerValueFactory}. The
* Spinner {@link #valueProperty() value property} will be set to the first
* element of the list, if an element exists, or null otherwise.
*
* @param items A list of items that will be stepped through in the Spinner.
*/
public Spinner(@NamedArg("items") ObservableList items) {
this(new SpinnerValueFactory.ListSpinnerValueFactory(items));
}
/**
* Creates a Spinner instance with the given value factory set.
*
* @param valueFactory The {@link #valueFactoryProperty() value factory} to use.
*/
public Spinner(@NamedArg("valueFactory") SpinnerValueFactory valueFactory) {
this();
setValueFactory(valueFactory);
}
/* *************************************************************************
* *
* Public API *
* *
**************************************************************************/
/**
* Attempts to increment the {@link #valueFactoryProperty() value factory}
* by one step, by calling the {@link SpinnerValueFactory#increment(int)}
* method with an argument of one. If the value factory is null, an
* IllegalStateException is thrown.
*
* @throws IllegalStateException if the value factory returned by
* calling {@link #getValueFactory()} is null.
*/
public void increment() {
increment(1);
}
/**
* Attempts to increment the {@link #valueFactoryProperty() value factory}
* by the given number of steps, by calling the
* {@link SpinnerValueFactory#increment(int)}
* method and forwarding the steps argument to it. If the value factory is
* null, an IllegalStateException is thrown.
*
* @param steps The number of increments that should be performed on the value.
* @throws IllegalStateException if the value factory returned by
* calling {@link #getValueFactory()} is null.
*/
public void increment(int steps) {
SpinnerValueFactory valueFactory = getValueFactory();
if (valueFactory == null) {
throw new IllegalStateException("Can't increment Spinner with a null SpinnerValueFactory");
}
commitValue();
valueFactory.increment(steps);
}
/**
* Attempts to decrement the {@link #valueFactoryProperty() value factory}
* by one step, by calling the {@link SpinnerValueFactory#decrement(int)}
* method with an argument of one. If the value factory is null, an
* IllegalStateException is thrown.
*
* @throws IllegalStateException if the value factory returned by
* calling {@link #getValueFactory()} is null.
*/
public void decrement() {
decrement(1);
}
/**
* Attempts to decrement the {@link #valueFactoryProperty() value factory}
* by the given number of steps, by calling the
* {@link SpinnerValueFactory#decrement(int)}
* method and forwarding the steps argument to it. If the value factory is
* null, an IllegalStateException is thrown.
*
* @param steps The number of decrements that should be performed on the value.
* @throws IllegalStateException if the value factory returned by
* calling {@link #getValueFactory()} is null.
*/
public void decrement(int steps) {
SpinnerValueFactory valueFactory = getValueFactory();
if (valueFactory == null) {
throw new IllegalStateException("Can't decrement Spinner with a null SpinnerValueFactory");
}
commitValue();
valueFactory.decrement(steps);
}
/** {@inheritDoc} */
@Override protected Skin createDefaultSkin() {
return new SpinnerSkin<>(this);
}
/**
* If the Spinner is {@link #editableProperty() editable}, calling this method will attempt to
* commit the current text and convert it to a {@link #valueProperty() value}.
* @since 9
*/
public final void commitValue() {
if (!isEditable()) return;
String text = getEditor().getText();
SpinnerValueFactory valueFactory = getValueFactory();
if (valueFactory != null) {
StringConverter converter = valueFactory.getConverter();
if (converter != null) {
T value = converter.fromString(text);
valueFactory.setValue(value);
}
}
}
/**
* If the Spinner is {@link #editableProperty() editable}, calling this method will attempt to
* replace the editor text with the last committed {@link #valueProperty() value}.
* @since 9
*/
public final void cancelEdit() {
if (!isEditable()) return;
final T committedValue = getValue();
SpinnerValueFactory valueFactory = getValueFactory();
if (valueFactory != null) {
StringConverter converter = valueFactory.getConverter();
if (converter != null) {
String valueString = converter.toString(committedValue);
getEditor().setText(valueString);
}
}
}
/* *************************************************************************
* *
* Properties *
* *
**************************************************************************/
// --- value (a read only, bound property to the value factory value property)
/**
* The value property on Spinner is a read-only property, as it is bound to
* the SpinnerValueFactory
* {@link SpinnerValueFactory#valueProperty() value property}. Should the
* {@link #valueFactoryProperty() value factory} change, this value property
* will be unbound from the old value factory and bound to the new one.
*
* If developers wish to modify the value property, they may do so with
* code in the following form:
*
*
* {@code
* Object newValue = ...;
* spinner.getValueFactory().setValue(newValue);
* }
*/
private ReadOnlyObjectWrapper value = new ReadOnlyObjectWrapper(this, "value");
public final T getValue() {
return value.get();
}
public final ReadOnlyObjectProperty valueProperty() {
return value;
}
// --- valueFactory
/**
* The value factory is the model behind the JavaFX Spinner control - without
* a value factory installed a Spinner is unusable. It is the role of the
* value factory to handle almost all aspects of the Spinner, including:
*
*
* - Representing the current state of the {@link SpinnerValueFactory#valueProperty() value},
* - {@link SpinnerValueFactory#increment(int) Incrementing}
* and {@link SpinnerValueFactory#decrement(int) decrementing} the
* value, with one or more steps per call,
* - {@link SpinnerValueFactory#converterProperty() Converting} text input
* from the user (via the Spinner {@link #editorProperty() editor},
* - Converting {@link SpinnerValueFactory#converterProperty() objects to user-readable strings}
* for display on screen
*
*/
private ObjectProperty> valueFactory =
new SimpleObjectProperty>(this, "valueFactory") {
@Override protected void invalidated() {
value.unbind();
SpinnerValueFactory newFactory = get();
if (newFactory != null) {
// this binding is what ensures the Spinner.valueProperty()
// properly represents the value in the value factory
value.bind(newFactory.valueProperty());
}
}
};
public final void setValueFactory(SpinnerValueFactory value) {
valueFactory.setValue(value);
}
public final SpinnerValueFactory getValueFactory() {
return valueFactory.get();
}
public final ObjectProperty> valueFactoryProperty() {
return valueFactory;
}
// --- editable
/**
* The editable property is used to specify whether user input is able to
* be typed into the Spinner {@link #editorProperty() editor}. If editable
* is true, user input will be received once the user types and presses
* the Enter key. At this point the input is passed to the
* SpinnerValueFactory {@link SpinnerValueFactory#converterProperty() converter}
* {@link javafx.util.StringConverter#fromString(String)} method.
* The returned value from this call (of type T) is then sent to the
* {@link SpinnerValueFactory#setValue(Object)} method. If the value
* is valid, it will remain as the value. If it is invalid, the value factory
* will need to react accordingly and back out this change.
*
* @defaultValue {@code false}
*/
private BooleanProperty editable;
public final void setEditable(boolean value) {
editableProperty().set(value);
}
public final boolean isEditable() {
return editable == null ? false : editable.get();
}
public final BooleanProperty editableProperty() {
if (editable == null) {
editable = new SimpleBooleanProperty(this, "editable", false);
}
return editable;
}
// --- editor
/**
* The editor used by the Spinner control.
* @return the editor property
*/
public final ReadOnlyObjectProperty editorProperty() {
if (editor == null) {
editor = new ReadOnlyObjectWrapper<>(this, "editor");
textField = new FakeFocusTextField();
textField.tooltipProperty().bind(tooltipProperty());
editor.set(textField);
}
return editor.getReadOnlyProperty();
}
private TextField textField;
private ReadOnlyObjectWrapper editor;
public final TextField getEditor() {
return editorProperty().get();
}
// --- prompt text
/**
* The prompt text to display in the {@code Spinner}, or
* {@code null} if no prompt text is displayed.
* @return the prompt text property
* @since 9
* @defaultValue Empty string
*/
public final StringProperty promptTextProperty() { return getEditor().promptTextProperty(); }
public final String getPromptText() { return getEditor().getPromptText(); }
public final void setPromptText(String value) { getEditor().setPromptText(value); }
private final ObjectProperty initialDelay =
new SimpleStyleableObjectProperty<>(INITIAL_DELAY,
this, "initialDelay", new Duration(300));
/**
* The duration that the mouse has to be pressed on an arrow button
* before the next value steps. Successive step duration is set using
* {@link #repeatDelayProperty() repeat delay}.
*
* @return initial delay property
* @since 11
* @defaultValue 300ms
*/
public final ObjectProperty initialDelayProperty() {
return initialDelay;
}
public final void setInitialDelay(Duration value) {
if (value != null) {
initialDelay.set(value);
}
}
public final Duration getInitialDelay() {
return initialDelay.get();
}
private final ObjectProperty repeatDelay =
new SimpleStyleableObjectProperty<>(REPEAT_DELAY,
this, "repeatDelay", new Duration(60));
/**
* The duration that the mouse has to be pressed for each successive step
* after the first value steps. Initial step duration is set using
* {@link #initialDelayProperty() initial delay}.
*
* @return repeat delay property
* @since 11
* @defaultValue 60ms
*/
public final ObjectProperty repeatDelayProperty() {
return repeatDelay;
}
public final void setRepeatDelay(Duration value) {
if (value != null) {
repeatDelay.set(value);
}
}
public final Duration getRepeatDelay() {
return repeatDelay.get();
}
/* *************************************************************************
* *
* Stylesheet Handling *
* *
**************************************************************************/
private static final CssMetaData,Duration> INITIAL_DELAY =
new CssMetaData,Duration>("-fx-initial-delay",
DurationConverter.getInstance(), new Duration(300)) {
@Override
public boolean isSettable(Spinner spinner) {
return !spinner.initialDelayProperty().isBound();
}
@Override
public StyleableProperty getStyleableProperty(Spinner spinner) {
return (StyleableProperty)(WritableValue)spinner.initialDelayProperty();
}
};
private static final CssMetaData,Duration> REPEAT_DELAY =
new CssMetaData,Duration>("-fx-repeat-delay",
DurationConverter.getInstance(), new Duration(60)) {
@Override
public boolean isSettable(Spinner spinner) {
return !spinner.repeatDelayProperty().isBound();
}
@Override
public StyleableProperty getStyleableProperty(Spinner spinner) {
return (StyleableProperty)(WritableValue)spinner.repeatDelayProperty();
}
};
private static final List> STYLEABLES;
static {
final List> styleables =
new ArrayList<>(Control.getClassCssMetaData());
styleables.add(INITIAL_DELAY);
styleables.add(REPEAT_DELAY);
STYLEABLES = Collections.unmodifiableList(styleables);
}
/*
* @return The CssMetaData associated with this class, which may include the
* CssMetaData of its superclasses.
* @since 11
*/
public static List> getClassCssMetaData() {
return STYLEABLES;
}
/*
* {@inheritDoc}
* @since 11
*/
@Override
public List> getControlCssMetaData() {
return getClassCssMetaData();
}
/* *************************************************************************
* *
* Implementation *
* *
**************************************************************************/
/*
* Update the TextField based on the current value
*/
private void setText(T value) {
String text = null;
SpinnerValueFactory valueFactory = getValueFactory();
if (valueFactory != null) {
StringConverter converter = valueFactory.getConverter();
if (converter != null) {
text = converter.toString(value);
}
}
notifyAccessibleAttributeChanged(AccessibleAttribute.TEXT);
if (text == null) {
if (value == null) {
getEditor().clear();
return;
} else {
text = value.toString();
}
}
getEditor().setText(text);
}
/*
* Convenience method to support wrapping values around their min / max
* constraints. Used by the SpinnerValueFactory implementations when
* the Spinner wrapAround property is true.
*/
static int wrapValue(int value, int min, int max) {
if (max == 0) {
throw new RuntimeException();
}
int r = value % max;
if (r > min && max < min) {
r = r + max - min;
} else if (r < min && max > min) {
r = r + max - min;
}
return r;
}
/*
* Convenience method to support wrapping values around their min / max
* constraints. Used by the SpinnerValueFactory implementations when
* the Spinner wrapAround property is true.
*/
static BigDecimal wrapValue(BigDecimal value, BigDecimal min, BigDecimal max) {
if (max.doubleValue() == 0) {
throw new RuntimeException();
}
// note that this wrap method differs from the others where we take the
// difference - in this approach we wrap to the min or max - it feels better
// to go from 1 to 0, rather than 1 to 0.05 (where max is 1 and step is 0.05).
if (value.compareTo(min) < 0) {
return max;
} else if (value.compareTo(max) > 0) {
return min;
}
return value;
}
/* *************************************************************************
* *
* Accessibility handling *
* *
**************************************************************************/
/** {@inheritDoc} */
@Override
public Object queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters) {
switch (attribute) {
case TEXT: {
T value = getValue();
SpinnerValueFactory factory = getValueFactory();
if (factory != null) {
StringConverter converter = factory.getConverter();
if (converter != null) {
return converter.toString(value);
}
}
return value != null ? value.toString() : "";
}
default: return super.queryAccessibleAttribute(attribute, parameters);
}
}
/** {@inheritDoc} */
@Override
public void executeAccessibleAction(AccessibleAction action, Object... parameters) {
switch (action) {
case INCREMENT:
increment();
break;
case DECREMENT:
decrement();
break;
default: super.executeAccessibleAction(action);
}
}
}
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