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// Because the unit tests for gfx::Image are spread across multiple
6// implementation files, this header contains the reusable components.
7
8#ifndef UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
9#define UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
10
11#include "ui/base/layout.h"
12#include "ui/gfx/image/image.h"
13#include "third_party/skia/include/core/SkColor.h"
14
15namespace gfx {
16namespace test {
17
18#if defined(OS_IOS)
19typedef UIImage* PlatformImage;
20#elif defined(OS_MACOSX)
21typedef NSImage* PlatformImage;
22#elif defined(TOOLKIT_GTK)
23typedef GdkPixbuf* PlatformImage;
24#else
25typedef gfx::ImageSkia PlatformImage;
26#endif
27
28std::vector<ui::ScaleFactor> Get1xAnd2xScaleFactors();
29
30// Create a bitmap of |width|x|height|.
31const SkBitmap CreateBitmap(int width, int height);
32
33// Creates an ImageSkia of |width|x|height| DIP with bitmap data for an
34// arbitrary scale factor.
35gfx::ImageSkia CreateImageSkia(int width, int height);
36
37// Returns PNG encoded bytes for a bitmap of |edge_size|x|edge_size|.
38scoped_refptr<base::RefCountedMemory> CreatePNGBytes(int edge_size);
39
40// TODO(rohitrao): Remove the no-argument version of CreateImage().
41gfx::Image CreateImage();
42gfx::Image CreateImage(int width, int height);
43
44// Returns true if the images are equal. Converts the images to ImageSkia to
45// compare them.
46bool IsEqual(const gfx::Image& image1, const gfx::Image& image2);
47
48bool IsEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2);
49
50bool IsEqual(const scoped_refptr<base::RefCountedMemory>& bytes,
51             const SkBitmap& bitmap);
52
53// An image which was not successfully decoded to PNG should be a red bitmap.
54// Fails if the bitmap is not red.
55void CheckImageIndicatesPNGDecodeFailure(const gfx::Image& image);
56
57// Returns true if the structure of |image_skia| matches the structure
58// described by |width|, |height|, and |scale_factors|.
59// The structure matches if:
60// - |image_skia| is non null.
61// - |image_skia| has ImageSkiaReps of |scale_factors|.
62// - Each of the ImageSkiaReps has a pixel size of |image_skia|.size() *
63//   scale_factor.
64bool ImageSkiaStructureMatches(
65    const gfx::ImageSkia& image_skia,
66    int width,
67    int height,
68    const std::vector<ui::ScaleFactor>& scale_factors);
69
70bool IsEmpty(const gfx::Image& image);
71
72PlatformImage CreatePlatformImage();
73
74gfx::Image::RepresentationType GetPlatformRepresentationType();
75
76PlatformImage ToPlatformType(const gfx::Image& image);
77PlatformImage CopyPlatformType(const gfx::Image& image);
78
79SkColor GetPlatformImageColor(PlatformImage image, int x, int y);
80void CheckColors(SkColor color1, SkColor color2);
81void CheckIsTransparent(SkColor color);
82
83bool IsPlatformImageValid(PlatformImage image);
84
85bool PlatformImagesEqual(PlatformImage image1, PlatformImage image2);
86
87}  // namespace test
88}  // namespace gfx
89
90#endif  // UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_
91