1/*
2 * Copyright (c) 2009, 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_DCHolder_H
27#define _AWT_DCHolder_H
28
29struct DCHolder
30{
31    HDC m_hMemoryDC;
32    int m_iWidth;
33    int m_iHeight;
34    BOOL m_bForImage;
35    HBITMAP m_hBitmap;
36    HBITMAP m_hOldBitmap;
37    void *m_pPoints;
38
39    DCHolder();
40    ~DCHolder();
41
42    void Create(
43        HDC hRelDC,
44        int iWidth,
45        int iHeght,
46        BOOL bForImage);
47
48    operator HDC()
49    {
50        if (NULL == m_hOldBitmap && NULL != m_hBitmap) {
51            m_hOldBitmap = (HBITMAP)::SelectObject(m_hMemoryDC, m_hBitmap);
52        }
53        return m_hMemoryDC;
54    }
55
56    operator HBITMAP()
57    {
58        if (NULL != m_hOldBitmap) {
59            m_hBitmap = (HBITMAP)::SelectObject(m_hMemoryDC, m_hOldBitmap);
60            m_hOldBitmap = NULL;
61        }
62        return m_hBitmap;
63    }
64
65    static HBITMAP CreateJavaContextBitmap(
66        HDC hdc,
67        int iWidth,
68        int iHeight,
69        void **ppPoints);
70};
71
72#endif //_AWT_DCHolder_H
73