1 /* 2 * Copyright (c) 1996, 2018, 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 package sun.awt.windows; 27 28 import java.awt.Color; 29 import java.awt.Component; 30 import java.awt.Container; 31 import java.awt.Graphics; 32 import java.awt.Insets; 33 import java.awt.SystemColor; 34 import java.awt.peer.PanelPeer; 35 36 import sun.awt.SunGraphicsCallback; 37 38 class WPanelPeer extends WCanvasPeer implements PanelPeer { 39 40 // ComponentPeer overrides 41 42 @Override 43 public void paint(Graphics g) { 44 super.paint(g); 45 SunGraphicsCallback.PaintHeavyweightComponentsCallback.getInstance(). 46 runComponents(((Container)target).getComponents(), g, 47 SunGraphicsCallback.LIGHTWEIGHTS | 48 SunGraphicsCallback.HEAVYWEIGHTS); 49 } 50 @Override 51 public void print(Graphics g) { 52 super.print(g); 53 SunGraphicsCallback.PrintHeavyweightComponentsCallback.getInstance(). 54 runComponents(((Container)target).getComponents(), g, 55 SunGraphicsCallback.LIGHTWEIGHTS | 56 SunGraphicsCallback.HEAVYWEIGHTS); 57 } 58 59 // ContainerPeer (via PanelPeer) implementation 60 61 @Override 62 public Insets getInsets() { 63 return insets_; 64 } 65 66 // Toolkit & peer internals 67 68 Insets insets_; 69 70 static { 71 initIDs(); 72 } 73 74 /** 75 * Initialize JNI field IDs 76 */ 77 private static native void initIDs(); 78 79 WPanelPeer(Component target) { 80 super(target); 81 } 82 83 @Override 84 void initialize() { 85 super.initialize(); 86 insets_ = new Insets(0,0,0,0); 87 88 Color c = ((Component)target).getBackground(); 89 if (c == null) { 90 c = SystemColor.window; 91 ((Component)target).setBackground(c); 92 setBackground(c); 93 } 94 c = ((Component)target).getForeground(); 95 if (c == null) { 96 c = SystemColor.windowText; 97 ((Component)target).setForeground(c); 98 setForeground(c); 99 } 100 } 101 }