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JideFX Common Layer is a collection of several extend feature for JavaFX
There is a newer version: 0.9.1-b128
/*
 * @(#)InsetsField.java 5/19/2013
 *
 * Copyright 2002 - 2013 JIDE Software Inc. All rights reserved.
 */

package jidefx.scene.control.field;

import javafx.geometry.Insets;
import javafx.util.Callback;
import jidefx.scene.control.field.popup.PopupContent;
import jidefx.scene.control.field.popup.ValuesPopupContent;
import jidefx.scene.control.field.verifier.NumberValuePatternVerifier;
import jidefx.utils.converter.ConverterContext;
import jidefx.utils.converter.javafx.InsetsConverter;

import java.util.ArrayList;
import java.util.List;

/**
 * {@code InsetsField} is a {@code FormattedTextField} for {@link Insets}.
 */
public class InsetsField extends PopupField {
    public InsetsField() {
    }

    private static final String STYLE_CLASS_DEFAULT = "insets-field"; //NON-NLS

    @Override
    protected void initializeStyle() {
        super.initializeStyle();
        getStyleClass().addAll(STYLE_CLASS_DEFAULT);
    }

    @Override
    protected void initializePattern() {
        super.initializePattern();
        setStringConverter(new InsetsConverter() {
            @Override
            protected String toString(int i, Double o, ConverterContext context) {
                if (o == null) return "";
                return o.toString();
            }

            @Override
            protected Double fromString(int i, String s, ConverterContext context) {
                if (s == null || s.trim().isEmpty()) return null;
                return Double.valueOf(s);
            }
        }.toStringConverter());

        getPatternVerifiers().put("Top", new NumberValuePatternVerifier() { //NON-NLS
            @Override
            public Double toTargetValue(Insets fieldValue) {
                return fieldValue.getTop();
            }

            @Override
            public Insets fromTargetValue(Insets previousFieldValue, Number value) {
                double top = value.doubleValue();
                return previousFieldValue != null ? new Insets(top, previousFieldValue.getRight(), previousFieldValue.getBottom(), previousFieldValue.getLeft())
                        : new Insets(top, 0, 0, 0);
            }
        });
        getPatternVerifiers().put("Right", new NumberValuePatternVerifier() { //NON-NLS
            @Override
            public Double toTargetValue(Insets fieldValue) {
                return fieldValue.getRight();
            }

            @Override
            public Insets fromTargetValue(Insets previousFieldValue, Number value) {
                double right = value.doubleValue();
                return previousFieldValue != null ? new Insets(previousFieldValue.getTop(), right, previousFieldValue.getBottom(), previousFieldValue.getLeft())
                        : new Insets(0, right, 0, 0);
            }
        });
        getPatternVerifiers().put("Bottom", new NumberValuePatternVerifier() { //NON-NLS
            @Override
            public Double toTargetValue(Insets fieldValue) {
                return fieldValue.getBottom();
            }

            @Override
            public Insets fromTargetValue(Insets previousFieldValue, Number value) {
                double bottom = value.doubleValue();
                return previousFieldValue != null ? new Insets(previousFieldValue.getTop(), previousFieldValue.getRight(), bottom, previousFieldValue.getLeft())
                        : new Insets(0, 0, bottom, 0);
            }
        });
        getPatternVerifiers().put("Left", new NumberValuePatternVerifier() { //NON-NLS
            @Override
            public Double toTargetValue(Insets fieldValue) {
                return fieldValue.getLeft();
            }

            @Override
            public Insets fromTargetValue(Insets previousFieldValue, Number value) {
                double left = value.doubleValue();
                return previousFieldValue != null ? new Insets(previousFieldValue.getTop(), previousFieldValue.getRight(), previousFieldValue.getBottom(), left)
                        : new Insets(0, 0, 0, left);
            }
        });
        setPattern("Top; Right; Bottom; Left"); //NON-NLS
    }

    @Override
    protected void initializeTextField() {
        super.initializeTextField();
        setPopupContentFactory(new Callback>() {
            @Override
            public PopupContent call(Insets param) {
                ValuesPopupContent popupContent = new ValuesPopupContent(new String[]{getResourceString("top"), getResourceString("right"), getResourceString("bottom"), getResourceString("left")}) {
                    @Override
                    public List toValues(Insets value) {
                        ArrayList list = new ArrayList<>(4);
                        list.add(value.getTop());
                        list.add(value.getRight());
                        list.add(value.getBottom());
                        list.add(value.getLeft());
                        return list;
                    }

                    @Override
                    public Insets fromValues(List values) {
                        return new Insets(values.get(0), values.get(1), values.get(2), values.get(3));
                    }

                    @Override
                    public FormattedTextField createTextField(String label) {
                        return new DoubleField();
                    }
                };
                popupContent.setValue(getValue());
                return popupContent;
            }
        });
    }
}