1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "ChunkedUpdateDrawingArea.h"
28
29 #include "UpdateChunk.h"
30 #include "WebPage.h"
31 #include <WebCore/BitmapInfo.h>
32 #include <WebCore/GraphicsContext.h>
33
34 using namespace WebCore;
35
36 namespace WebKit {
37
paintIntoUpdateChunk(UpdateChunk * updateChunk)38 void ChunkedUpdateDrawingArea::paintIntoUpdateChunk(UpdateChunk* updateChunk)
39 {
40 OwnPtr<HDC> hdc(::CreateCompatibleDC(0));
41
42 void* bits;
43 BitmapInfo bmp = BitmapInfo::createBottomUp(updateChunk->rect().size());
44 OwnPtr<HBITMAP> hbmp(::CreateDIBSection(0, &bmp, DIB_RGB_COLORS, &bits, updateChunk->memory(), 0));
45
46 HBITMAP hbmpOld = static_cast<HBITMAP>(::SelectObject(hdc.get(), hbmp.get()));
47
48 GraphicsContext gc(hdc.get());
49 gc.save();
50
51 // FIXME: Is this white fill needed?
52 RECT rect = updateChunk->rect();
53 ::FillRect(hdc.get(), &rect, (HBRUSH)::GetStockObject(WHITE_BRUSH));
54 gc.translate(-updateChunk->rect().x(), -updateChunk->rect().y());
55
56 m_webPage->drawRect(gc, updateChunk->rect());
57
58 gc.restore();
59
60 // Re-select the old HBITMAP
61 ::SelectObject(hdc.get(), hbmpOld);
62 }
63
64 } // namespace WebKit
65