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.swt.graphics.GC; 14 import org.eclipse.wb.internal.core.model.property.Property; 15 import org.eclipse.wb.internal.core.model.property.table.PropertyTable; 16 import org.eclipse.wb.internal.core.model.property.table.PropertyTooltipProvider; 17 import org.eclipse.wb.internal.core.utils.ui.DrawUtils; 18 19 /** 20 * Abstract {@link PropertyEditor} for displaying text as {@link Property} value in 21 * {@link PropertyTable}. 22 * 23 * @author scheglov_ke 24 * @coverage core.model.property.editor 25 */ 26 public abstract class TextDisplayPropertyEditor extends PropertyEditor { 27 //////////////////////////////////////////////////////////////////////////// 28 // 29 // Presentation 30 // 31 //////////////////////////////////////////////////////////////////////////// 32 @Override 33 public void paint(Property property, GC gc, int x, int y, int width, int height) throws Exception { 34 String text = getText(property); 35 if (text != null) { 36 DrawUtils.drawStringCV(gc, text, x, y, width, height); 37 } 38 } 39 40 /** 41 * @return the text for displaying value of given {@link Property} or <code>null</code> if value 42 * of {@link Property} is unknown. 43 */ 44 protected abstract String getText(Property property) throws Exception; 45 46 //////////////////////////////////////////////////////////////////////////// 47 // 48 // IAdaptable 49 // 50 //////////////////////////////////////////////////////////////////////////// 51 @Override 52 public <T> T getAdapter(Class<T> adapter) { 53 // tooltip for value text 54 if (adapter == PropertyTooltipProvider.class) { 55 return adapter.cast(createPropertyTooltipProvider()); 56 } 57 return super.getAdapter(adapter); 58 } 59 60 /** 61 * @return the {@link PropertyTooltipProvider} to display value tooltip. 62 */ 63 protected PropertyTooltipProvider createPropertyTooltipProvider() { 64 return null; 65 } 66 } 67
