1// Copyright (c) 2011 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 "skia/ext/bitmap_platform_device_mac.h"
6
7#include "base/memory/scoped_ptr.h"
8#include "skia/ext/skia_utils_mac.h"
9#include "testing/gtest/include/gtest/gtest.h"
10#include "third_party/skia/include/core/SkMatrix.h"
11#include "third_party/skia/include/core/SkRegion.h"
12#include "third_party/skia/include/core/SkClipStack.h"
13
14namespace skia {
15
16const int kWidth = 400;
17const int kHeight = 300;
18
19class BitmapPlatformDeviceMacTest : public testing::Test {
20 public:
21  BitmapPlatformDeviceMacTest() {
22    bitmap_.reset(BitmapPlatformDevice::Create(
23        NULL, kWidth, kHeight, /*is_opaque=*/true));
24  }
25
26  scoped_ptr<BitmapPlatformDevice> bitmap_;
27};
28
29TEST_F(BitmapPlatformDeviceMacTest, ClipRectTransformWithTranslate) {
30  SkMatrix transform;
31  transform.setTranslate(50, 140);
32
33  SkClipStack ignore;
34  SkRegion clip_region;
35  SkIRect rect;
36  rect.set(0, 0, kWidth, kHeight);
37  clip_region.setRect(rect);
38  bitmap_->setMatrixClip(transform, clip_region, ignore);
39
40  CGContextRef context = bitmap_->GetBitmapContext();
41  SkRect clip_rect = gfx::CGRectToSkRect(CGContextGetClipBoundingBox(context));
42  transform.mapRect(&clip_rect);
43  EXPECT_EQ(0, clip_rect.fLeft);
44  EXPECT_EQ(0, clip_rect.fTop);
45  EXPECT_EQ(kWidth, clip_rect.width());
46  EXPECT_EQ(kHeight, clip_rect.height());
47}
48
49TEST_F(BitmapPlatformDeviceMacTest, ClipRectTransformWithScale) {
50  SkMatrix transform;
51  transform.setScale(0.5, 0.5);
52
53  SkClipStack unused;
54  SkRegion clip_region;
55  SkIRect rect;
56  rect.set(0, 0, kWidth, kHeight);
57  clip_region.setRect(rect);
58  bitmap_->setMatrixClip(transform, clip_region, unused);
59
60  CGContextRef context = bitmap_->GetBitmapContext();
61  SkRect clip_rect = gfx::CGRectToSkRect(CGContextGetClipBoundingBox(context));
62  transform.mapRect(&clip_rect);
63  EXPECT_EQ(0, clip_rect.fLeft);
64  EXPECT_EQ(0, clip_rect.fTop);
65  EXPECT_EQ(kWidth, clip_rect.width());
66  EXPECT_EQ(kHeight, clip_rect.height());
67}
68
69}  // namespace skia
70