1 /* 2 * Copyright (c) 1996, 2004, 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 #ifndef AWT_LABEL_H 27 #define AWT_LABEL_H 28 29 #include "awt_Component.h" 30 31 #include "java_awt_Label.h" 32 #include "sun_awt_windows_WLabelPeer.h" 33 34 35 /************************************************************************ 36 * AwtLabel class 37 */ 38 39 class AwtLabel : public AwtComponent { 40 public: 41 /* 42 * java.awt.Label fields 43 */ 44 static jfieldID textID; 45 static jfieldID alignmentID; 46 47 AwtLabel(); 48 49 virtual LPCTSTR GetClassName(); 50 51 static AwtLabel* Create(jobject label, jobject parent); 52 53 /* 54 * Windows message handler functions 55 */ 56 virtual MsgRouting WmPaint(HDC hDC); 57 virtual MsgRouting WmPrintClient(HDC hDC, LPARAM flags); 58 virtual MsgRouting WmEraseBkgnd(HDC hDC, BOOL& didErase); 59 60 /* 61 * if WM_PAINT was recieving when we can not paint 62 * then setup m_needPaint end when can call this function 63 */ 64 void LazyPaint(); 65 /* 66 * Enable/disable component 67 */ 68 virtual void Enable(BOOL bEnable); 69 70 // some methods called on Toolkit thread 71 static void _SetText(void *param); 72 static void _SetAlignment(void *param); 73 static void _LazyPaint(void *param); 74 75 private: 76 BOOL m_needPaint; // flags for lazy paint of Label 77 78 void DoPaint(HDC hDC, RECT& r); 79 }; 80 81 #endif /* AWT_LABEL_H */ 82