1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. 3 * All rights reserved. Use is subject to license terms. 4 * 5 * This file is available and licensed under the following license: 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the distribution. 16 * - Neither the name of Oracle Corporation nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 package com.oracle.javafx.scenebuilder.kit.util.control.paintpicker; 33 34 import java.util.Locale; 35 import javafx.scene.control.TextField; 36 import javafx.scene.input.Clipboard; 37 38 /** 39 * Define a text field that accept only doubles. 40 */ 41 public class DoubleTextField extends TextField { 42 43 public DoubleTextField() { 44 } 45 46 @Override 47 public void replaceText(int start, int end, String text) { 48 String newText = getNewText(start, end, text); 49 if (!text.isEmpty() // Always allow text deletion 50 && (!newText.equals("-") && !newText.equals(".") && !newText.equals("-."))) { //NOI18N 51 try { 52 if (newText.toLowerCase(Locale.ROOT).contains("d") || newText.toLowerCase(Locale.ROOT).contains("f")) { //NOI18N 53 // 'd' and 'f' are valid for a Double, 54 // but we don't want to accept them in the editor 55 return; 56 } 57 // Replace ',' by '.' 58 newText = newText.replace(',', '.'); //NOI18N 59 Double.parseDouble(newText); 60 } catch (NumberFormatException e) { 61 return; 62 } 63 } 64 // Replace ',' by '.' 65 text = text.replace(',', '.'); //NOI18N 66 super.replaceText(start, end, text); 67 } 68 69 @Override 70 public void paste() { 71 String strToPaste = Clipboard.getSystemClipboard().getString(); 72 try { 73 Double.parseDouble(strToPaste); 74 } catch (NumberFormatException e) { 75 return; 76 } 77 super.paste(); 78 } 79 80 private String getNewText(int start, int end, String text) { 81 String oldText = getText(); 82 String toReplace = oldText.substring(start, end); 83 String newText; 84 if (toReplace.isEmpty()) { 85 // start/end is outside oldText ==> add 86 newText = oldText + text; 87 } else { 88 String headerStr = oldText.substring(0, start); 89 String trailerStr = ""; //NOI18N 90 if (end < oldText.length()) { 91 trailerStr = oldText.substring(end, oldText.length()); 92 } 93 newText = headerStr + text + trailerStr; 94 } 95 return newText; 96 } 97 98 }