H ConversionPanel.java
詳細は、「JavaFXでのSwingアプリケーションの実装」を参照してください。
法的条項および著作権表示
/* * Copyright (c) 2011, 2014, Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. * * This file is available and licensed under the following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
コード
package converter; import java.text.NumberFormat; import java.text.ParseException; import javafx.beans.InvalidationListener; import javafx.beans.property.DoubleProperty; import javafx.collections.ObservableList; import javafx.scene.control.ComboBox; import javafx.scene.control.Slider; import javafx.scene.control.TextField; import javafx.scene.control.TitledPane; import javafx.scene.layout.HBox; import javafx.scene.layout.VBox; import javafx.util.StringConverter; public class ConversionPanel extends TitledPane { final static int MAX = 10000; private ComboBox<Unit> comboBox; private Slider slider; private TextField textField; private DoubleProperty meters; private NumberFormat numberFormat; private InvalidationListener fromMeters = t -> { if (!textField.isFocused()) { textField.setText(numberFormat.format(meters.get() / getMultiplier())); } }; private InvalidationListener toMeters = t -> { if (!textField.isFocused()) { return; } try { meters.set(numberFormat.parse(textField.getText()).doubleValue() * getMultiplier()); } catch (ParseException | Error | RuntimeException ignored) { } }; public ConversionPanel(String title, ObservableList<Unit> units, DoubleProperty meters) { setText(title); setCollapsible(false); numberFormat = NumberFormat.getNumberInstance(); numberFormat.setMaximumFractionDigits(2); textField = new TextField(); slider = new Slider(0, MAX, 0); comboBox = new ComboBox(units); comboBox.setConverter(new StringConverter<Unit>() { @Override public String toString(Unit t) { return t.description; } @Override public Unit fromString(String string) { throw new UnsupportedOperationException("Not supported yet."); } }); VBox vbox = new VBox(textField, slider); HBox hbox = new HBox(vbox, comboBox); setContent(hbox); this.meters = meters; comboBox.getSelectionModel().select(0); meters.addListener(fromMeters); comboBox.valueProperty().addListener(fromMeters); textField.textProperty().addListener(toMeters); fromMeters.invalidated(null); slider.valueProperty().bindBidirectional(meters); } /** * Returns the multiplier (units/meter) for the currently * selected unit of measurement. * @return */ public double getMultiplier() { return comboBox.getValue().multiplier; } }