Lots of random cleanups, mostly for native_theme_win.cc:
[chromium-blink-merge.git] / cc / layers / content_layer_unittest.cc
blobf450149d4f6f751ef49b5e5214958860f79d7d6f
1 // Copyright 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.
5 #include "cc/layers/content_layer.h"
7 #include "cc/layers/content_layer_client.h"
8 #include "cc/resources/bitmap_content_layer_updater.h"
9 #include "cc/test/fake_rendering_stats_instrumentation.h"
10 #include "cc/test/geometry_test_utils.h"
11 #include "skia/ext/platform_canvas.h"
12 #include "testing/gtest/include/gtest/gtest.h"
13 #include "ui/gfx/rect_conversions.h"
15 namespace cc {
16 namespace {
18 class MockContentLayerClient : public ContentLayerClient {
19 public:
20 explicit MockContentLayerClient(const gfx::Rect& opaque_layer_rect)
21 : opaque_layer_rect_(opaque_layer_rect) {}
23 virtual void PaintContents(
24 SkCanvas* canvas,
25 const gfx::Rect& clip,
26 gfx::RectF* opaque,
27 ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE {
28 *opaque = gfx::RectF(opaque_layer_rect_);
30 virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
31 virtual bool FillsBoundsCompletely() const OVERRIDE { return false; }
33 private:
34 gfx::Rect opaque_layer_rect_;
37 TEST(ContentLayerTest, ContentLayerPainterWithDeviceScale) {
38 float contents_scale = 2.f;
39 gfx::Rect content_rect(10, 10, 100, 100);
40 gfx::Rect opaque_rect_in_layer_space(5, 5, 20, 20);
41 gfx::Rect opaque_rect_in_content_space = gfx::ScaleToEnclosingRect(
42 opaque_rect_in_layer_space, contents_scale, contents_scale);
43 MockContentLayerClient client(opaque_rect_in_layer_space);
44 FakeRenderingStatsInstrumentation stats_instrumentation;
45 scoped_refptr<BitmapContentLayerUpdater> updater =
46 BitmapContentLayerUpdater::Create(
47 ContentLayerPainter::Create(&client).PassAs<LayerPainter>(),
48 &stats_instrumentation,
49 0);
51 gfx::Rect resulting_opaque_rect;
52 updater->PrepareToUpdate(content_rect,
53 gfx::Size(256, 256),
54 contents_scale,
55 contents_scale,
56 &resulting_opaque_rect);
58 EXPECT_EQ(opaque_rect_in_content_space.ToString(),
59 resulting_opaque_rect.ToString());
62 } // namespace
63 } // namespace cc