1 /******************************************************************************* 2 * Copyright (c) 2011 Google, Inc. 3 * All rights reserved. This program and the accompanying materials 4 * are made available under the terms of the Eclipse Public License v1.0 5 * which accompanies this distribution, and is available at 6 * http://www.eclipse.org/legal/epl-v10.html 7 * 8 * Contributors: 9 * Google, Inc. - initial API and implementation 10 *******************************************************************************/ 11 package org.eclipse.wb.internal.core.model.property.editor; 12 13 import org.eclipse.wb.internal.core.DesignerPlugin; 14 import org.eclipse.wb.internal.core.model.ModelMessages; 15 import org.eclipse.wb.internal.core.model.property.Property; 16 import org.eclipse.wb.internal.core.utils.ui.UiUtils; 17 18 import java.text.MessageFormat; 19 20 /** 21 * The {@link PropertyEditor} for {@link Double}. 22 * 23 * @author scheglov_ke 24 * @coverage core.model.property.editor 25 */ 26 public final class DoubleObjectPropertyEditor extends AbstractTextPropertyEditor { 27 //////////////////////////////////////////////////////////////////////////// 28 // 29 // Instance 30 // 31 //////////////////////////////////////////////////////////////////////////// 32 public static final DoubleObjectPropertyEditor INSTANCE = new DoubleObjectPropertyEditor(); 33 34 private DoubleObjectPropertyEditor() { 35 } 36 37 //////////////////////////////////////////////////////////////////////////// 38 // 39 // Presentation 40 // 41 //////////////////////////////////////////////////////////////////////////// 42 @Override 43 public String getText(Property property) throws Exception { 44 Object value = property.getValue(); 45 if (value == null) { 46 return "null"; 47 } 48 if (value instanceof Double) { 49 return value.toString(); 50 } 51 return null; 52 } 53 54 //////////////////////////////////////////////////////////////////////////// 55 // 56 // Editing 57 // 58 //////////////////////////////////////////////////////////////////////////// 59 @Override 60 protected String getEditorText(Property property) throws Exception { 61 return getText(property); 62 } 63 64 @Override 65 protected boolean setEditorText(Property property, String text) throws Exception { 66 text = text.trim(); 67 // check for delete 68 if (text.length() == 0) { 69 property.setValue(Property.UNKNOWN_VALUE); 70 return true; 71 } 72 // check for "null" 73 if (text.equals("null")) { 74 property.setValue(null); 75 return true; 76 } 77 // prepare value 78 Double value; 79 try { 80 value = Double.valueOf(text); 81 } catch (Throwable e) { 82 UiUtils.openWarning( 83 DesignerPlugin.getShell(), 84 property.getTitle(), 85 MessageFormat.format(ModelMessages.DoubleObjectPropertyEditor_notValidDouble, text)); 86 return false; 87 } 88 // modify property 89 property.setValue(value); 90 return true; 91 } 92 } 93
