1 /* 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 27 package sun.lwawt; 28 29 import java.awt.Dimension; 30 import java.awt.FontMetrics; 31 import java.awt.Label; 32 import java.awt.peer.LabelPeer; 33 34 import javax.swing.JLabel; 35 import javax.swing.SwingConstants; 36 37 import javax.tools.annotation.GenerateNativeHeader; 38 39 /** 40 * Lightweight implementation of {@link LabelPeer}. Delegates most of the work 41 * to the {@link JLabel}. 42 */ 43 /* No native methods here, but the constants are needed in the supporting JNI code */ 44 @GenerateNativeHeader 45 final class LWLabelPeer extends LWComponentPeer<Label, JLabel> 46 implements LabelPeer { 47 48 private static final int TEXT_XPAD = 5; 49 private static final int TEXT_YPAD = 1; 50 51 LWLabelPeer(final Label target, final PlatformComponent platformComponent) { 52 super(target, platformComponent); 53 } 54 55 @Override 56 protected JLabel createDelegate() { 57 final JLabel label = new JLabel(); 58 label.setVerticalAlignment(SwingConstants.TOP); 59 return label; 60 } 61 62 @Override 63 void initializeImpl() { 64 super.initializeImpl(); 65 setText(getTarget().getText()); 66 setAlignment(getTarget().getAlignment()); 67 } 68 69 @Override 70 public void setText(final String label) { 71 synchronized (getDelegateLock()) { 72 getDelegate().setText(label); 73 } 74 } 75 76 @Override 77 public void setAlignment(final int alignment) { 78 synchronized (getDelegateLock()) { 79 getDelegate().setHorizontalAlignment(convertAlignment(alignment)); 80 } 81 } 82 83 @Override 84 public Dimension getMinimumSize() { 85 int w = TEXT_XPAD; 86 int h = TEXT_YPAD; 87 final FontMetrics fm = getFontMetrics(getFont()); 88 if (fm != null) { 89 final String text; 90 synchronized (getDelegateLock()) { 91 text = getDelegate().getText(); 92 } 93 if (text != null) { 94 w += fm.stringWidth(text); 95 } 96 h += fm.getHeight(); 97 } 98 return new Dimension(w, h); 99 } 100 101 /** 102 * Converts {@code Label} alignment constant to the {@code JLabel} constant. 103 * If wrong Label alignment provided returns default alignment. 104 * 105 * @param alignment {@code Label} constant. 106 * 107 * @return {@code JLabel} constant. 108 */ 109 private static int convertAlignment(final int alignment) { 110 switch (alignment) { 111 case Label.CENTER: 112 return SwingConstants.CENTER; 113 case Label.RIGHT: 114 return SwingConstants.RIGHT; 115 default: 116 return SwingConstants.LEFT; 117 } 118 } | 1 /* 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 27 package sun.lwawt; 28 29 import java.awt.Label; 30 import java.awt.peer.LabelPeer; 31 32 import javax.swing.JLabel; 33 import javax.swing.SwingConstants; 34 35 /** 36 * Lightweight implementation of {@link LabelPeer}. Delegates most of the work 37 * to the {@link JLabel}. 38 */ 39 final class LWLabelPeer extends LWComponentPeer<Label, JLabel> 40 implements LabelPeer { 41 42 LWLabelPeer(final Label target, final PlatformComponent platformComponent) { 43 super(target, platformComponent); 44 } 45 46 @Override 47 protected JLabel createDelegate() { 48 return new JLabel(); 49 } 50 51 @Override 52 void initializeImpl() { 53 super.initializeImpl(); 54 setText(getTarget().getText()); 55 setAlignment(getTarget().getAlignment()); 56 } 57 58 @Override 59 public void setText(final String label) { 60 synchronized (getDelegateLock()) { 61 getDelegate().setText(label); 62 } 63 } 64 65 @Override 66 public void setAlignment(final int alignment) { 67 synchronized (getDelegateLock()) { 68 getDelegate().setHorizontalAlignment(convertAlignment(alignment)); 69 } 70 } 71 72 /** 73 * Converts {@code Label} alignment constant to the {@code JLabel} constant. 74 * If wrong Label alignment provided returns default alignment. 75 * 76 * @param alignment {@code Label} constant. 77 * 78 * @return {@code JLabel} constant. 79 */ 80 private static int convertAlignment(final int alignment) { 81 switch (alignment) { 82 case Label.CENTER: 83 return SwingConstants.CENTER; 84 case Label.RIGHT: 85 return SwingConstants.RIGHT; 86 default: 87 return SwingConstants.LEFT; 88 } 89 } |