1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "printing/image.h"
6
7#include <ApplicationServices/ApplicationServices.h>
8
9#include "base/mac/scoped_cftyperef.h"
10#include "printing/metafile.h"
11#include "ui/gfx/rect.h"
12
13namespace printing {
14
15bool Image::LoadMetafile(const Metafile& metafile) {
16  // The printing system uses single-page metafiles (page indexes are 1-based).
17  const unsigned int page_number = 1;
18  gfx::Rect rect(metafile.GetPageBounds(page_number));
19  if (rect.width() < 1 || rect.height() < 1)
20    return false;
21
22  size_ = rect.size();
23  row_length_ = size_.width() * sizeof(uint32);
24  size_t bytes = row_length_ * size_.height();
25  DCHECK(bytes);
26
27  data_.resize(bytes);
28  base::ScopedCFTypeRef<CGColorSpaceRef> color_space(
29      CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB));
30  base::ScopedCFTypeRef<CGContextRef> bitmap_context(
31      CGBitmapContextCreate(&*data_.begin(),
32                            size_.width(),
33                            size_.height(),
34                            8,
35                            row_length_,
36                            color_space,
37                            kCGImageAlphaPremultipliedLast));
38  DCHECK(bitmap_context.get());
39
40  struct Metafile::MacRenderPageParams params;
41  params.shrink_to_fit = true;
42  metafile.RenderPage(page_number, bitmap_context,
43                      CGRectMake(0, 0, size_.width(), size_.height()), params);
44
45  return true;
46}
47
48}  // namespace printing
49