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Scenic View is a JavaFX application designed to make it simple to understand the current state of your application scenegraph, and to also easily manipulate properties of the scenegraph without having to keep editing your code. This lets you find bugs, and get things pixel perfect without having to do the compile-check-compile dance.

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/*
 * Scenic View, 
 * Copyright (C) 2012 Jonathan Giles, Ander Ruiz, Amy Fowler 
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.fxconnector.details;

import javafx.beans.property.DoubleProperty;
import javafx.beans.value.WritableValue;

class SizeSerializer implements WritableValue {

    private final DoubleProperty x;
    private final DoubleProperty y;

    SizeSerializer(final DoubleProperty x, final DoubleProperty y) {
        this.x = x;
        this.y = y;
    }

    @Override public String getValue() {
        return x.getValue() + " x " + y.getValue();
    }

    @Override public void setValue(final String value) {
        try {
            final int pos = value.indexOf(" x ");
            if (pos == -1) {
                throw new IllegalArgumentException("Invalid size format should be xValue x yValue");
            }
            final String x = value.substring(0, pos);
            final String y = value.substring(pos + 3);
            final double xValue = Double.parseDouble(x);
            final double yValue = Double.parseDouble(y);
            if ((this.x.isBound() && this.x.get() != xValue) || (this.y.isBound() && this.y.get() != yValue)) {
                throw new IllegalArgumentException("Bound value cannot be changed");
            }
            if (!this.x.isBound())
                this.x.set(xValue);
            if (!this.y.isBound())
                this.y.set(yValue);
        } catch (final Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }

}