1/* 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. 3 * Copyright (C) 2007-2009 Torch Mobile, Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "config.h" 28#include "FrameWin.h" 29 30#include "Frame.h" 31#include "FrameView.h" 32#include "GraphicsContext.h" 33#include <wtf/win/GDIObject.h> 34 35namespace WebCore { 36 37extern HDC g_screenDC; 38 39GDIObject<HBITMAP> imageFromRect(Frame* frame, IntRect& ir) 40{ 41 int w; 42 int h; 43 FrameView* view = frame->view(); 44 if (view->parent()) { 45 ir.setLocation(view->parent()->convertChildToSelf(view, ir.location())); 46 w = ir.width() * frame->pageZoomFactor() + 0.5; 47 h = ir.height() * frame->pageZoomFactor() + 0.5; 48 } else { 49 ir = view->contentsToWindow(ir); 50 w = ir.width(); 51 h = ir.height(); 52 } 53 54 auto bmpDC = adoptGDIObject(::CreateCompatibleDC(g_screenDC)); 55 auto hBmp = adoptGDIObject(::CreateCompatibleBitmap(g_screenDC, w, h)); 56 if (!hBmp) 57 return nullptr; 58 59 HGDIOBJ hbmpOld = ::SelectObject(bmpDC.get(), hBmp.get()); 60 61 { 62 GraphicsContext gc(bmpDC.get()); 63 view->paint(&gc, ir); 64 } 65 66 ::SelectObject(bmpDC.get(), hbmpOld); 67 68 return hBmp; 69} 70 71} // namespace WebCore 72