ui/gfx/image/image_unittest_util.h

   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
  15 namespace gfx {
  16 namespace test {
  17
  18 #if defined(OS_IOS)
  19 typedef UIImage* PlatformImage;
  20 #elif defined(OS_MACOSX)
  21 typedef NSImage* PlatformImage;
  22 #elif defined(TOOLKIT_GTK)
  23 typedef GdkPixbuf* PlatformImage;
  24 #else
  25 typedef gfx::ImageSkia PlatformImage;
  26 #endif
  27
  28 std::vector<ui::ScaleFactor> Get1xAnd2xScaleFactors();
  29
  30 // Create a bitmap of |width|x|height|.
  31 const 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.
  35 gfx::ImageSkia CreateImageSkia(int width, int height);
  36
  37 // Returns PNG encoded bytes for a bitmap of |edge_size|x|edge_size|.
  38 scoped_refptr<base::RefCountedMemory> CreatePNGBytes(int edge_size);
  39
  40 // TODO(rohitrao): Remove the no-argument version of CreateImage().
  41 gfx::Image CreateImage();
  42 gfx::Image CreateImage(int width, int height);
  43
  44 // Returns true if the images are equal. Converts the images to ImageSkia to
  45 // compare them.
  46 bool IsEqual(const gfx::Image& image1, const gfx::Image& image2);
  47
  48 bool IsEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2);
  49
  50 bool 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.
  55 void 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.
  64 bool ImageSkiaStructureMatches(
  65     const gfx::ImageSkia& image_skia,
  66     int width,
  67     int height,
  68     const std::vector<ui::ScaleFactor>& scale_factors);
  69
  70 bool IsEmpty(const gfx::Image& image);
  71
  72 PlatformImage CreatePlatformImage();
  73
  74 gfx::Image::RepresentationType GetPlatformRepresentationType();
  75
  76 PlatformImage ToPlatformType(const gfx::Image& image);
  77 PlatformImage CopyPlatformType(const gfx::Image& image);
  78
  79 SkColor GetPlatformImageColor(PlatformImage image, int x, int y);
  80 void CheckColors(SkColor color1, SkColor color2);
  81 void CheckIsTransparent(SkColor color);
  82
  83 bool IsPlatformImageValid(PlatformImage image);
  84
  85 bool PlatformImagesEqual(PlatformImage image1, PlatformImage image2);
  86
  87 }  // namespace test
  88 }  // namespace gfx
  89
  90 #endif  // UI_GFX_IMAGE_IMAGE_UNITTEST_UTIL_H_