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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "skia/ext/bitmap_platform_device_mac.h"
#include "base/memory/scoped_ptr.h"
#include "skia/ext/skia_utils_mac.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkMatrix.h"
#include "third_party/skia/include/core/SkRegion.h"
#include "third_party/skia/include/core/SkClipStack.h"
namespace skia {
const int kWidth = 400;
const int kHeight = 300;
class BitmapPlatformDeviceMacTest : public testing::Test {
public:
BitmapPlatformDeviceMacTest() {
bitmap_.reset(BitmapPlatformDevice::Create(
NULL, kWidth, kHeight, /*is_opaque=*/true));
}
scoped_ptr<BitmapPlatformDevice> bitmap_;
};
TEST_F(BitmapPlatformDeviceMacTest, ClipRectTransformWithTranslate) {
SkMatrix transform;
transform.setTranslate(50, 140);
SkClipStack ignore;
SkRegion clip_region;
SkIRect rect;
rect.set(0, 0, kWidth, kHeight);
clip_region.setRect(rect);
bitmap_->setMatrixClip(transform, clip_region, ignore);
CGContextRef context = bitmap_->GetBitmapContext();
SkRect clip_rect = gfx::CGRectToSkRect(CGContextGetClipBoundingBox(context));
transform.mapRect(&clip_rect);
EXPECT_EQ(0, clip_rect.fLeft);
EXPECT_EQ(0, clip_rect.fTop);
EXPECT_EQ(kWidth, clip_rect.width());
EXPECT_EQ(kHeight, clip_rect.height());
}
TEST_F(BitmapPlatformDeviceMacTest, ClipRectTransformWithScale) {
SkMatrix transform;
transform.setScale(0.5, 0.5);
SkClipStack unused;
SkRegion clip_region;
SkIRect rect;
rect.set(0, 0, kWidth, kHeight);
clip_region.setRect(rect);
bitmap_->setMatrixClip(transform, clip_region, unused);
CGContextRef context = bitmap_->GetBitmapContext();
SkRect clip_rect = gfx::CGRectToSkRect(CGContextGetClipBoundingBox(context));
transform.mapRect(&clip_rect);
EXPECT_EQ(0, clip_rect.fLeft);
EXPECT_EQ(0, clip_rect.fTop);
EXPECT_EQ(kWidth, clip_rect.width());
EXPECT_EQ(kHeight, clip_rect.height());
}
} // namespace skia
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