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
13 namespace printing {
14
LoadMetafile(const Metafile & metafile)15 bool 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