| // Copyright 2019 PDFium 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 "core/fxge/cfx_windowsrenderdevice.h" |
| |
| #include <windows.h> |
| |
| #include <memory> |
| |
| #include "core/fxge/cfx_fillrenderoptions.h" |
| #include "core/fxge/cfx_path.h" |
| #include "testing/embedder_test.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace { |
| |
| constexpr CFX_Matrix kIdentityMatrix; |
| |
| } // namespace |
| |
| class CFX_WindowsRenderDeviceTest : public EmbedderTest { |
| public: |
| void SetUp() override { |
| EmbedderTest::SetUp(); |
| |
| // Get a device context with Windows GDI. |
| m_hDC = CreateCompatibleDC(nullptr); |
| ASSERT_TRUE(m_hDC); |
| m_driver = std::make_unique<CFX_WindowsRenderDevice>(m_hDC, nullptr); |
| m_driver->SaveState(); |
| } |
| |
| void TearDown() override { |
| m_driver->RestoreState(false); |
| m_driver.reset(); |
| DeleteDC(m_hDC); |
| EmbedderTest::TearDown(); |
| } |
| |
| protected: |
| HDC m_hDC; |
| std::unique_ptr<CFX_WindowsRenderDevice> m_driver; |
| }; |
| |
| TEST_F(CFX_WindowsRenderDeviceTest, SimpleClipTriangle) { |
| CFX_Path path_data; |
| CFX_PointF p1(0.0f, 0.0f); |
| CFX_PointF p2(0.0f, 100.0f); |
| CFX_PointF p3(100.0f, 100.0f); |
| |
| path_data.AppendLine(p1, p2); |
| path_data.AppendLine(p2, p3); |
| path_data.AppendLine(p3, p1); |
| path_data.ClosePath(); |
| EXPECT_TRUE(m_driver->SetClip_PathFill( |
| &path_data, &kIdentityMatrix, CFX_FillRenderOptions::WindingOptions())); |
| } |
| |
| TEST_F(CFX_WindowsRenderDeviceTest, SimpleClipRect) { |
| CFX_Path path_data; |
| |
| path_data.AppendRect(0.0f, 100.0f, 200.0f, 0.0f); |
| path_data.ClosePath(); |
| EXPECT_TRUE(m_driver->SetClip_PathFill( |
| &path_data, &kIdentityMatrix, CFX_FillRenderOptions::WindingOptions())); |
| } |
| |
| TEST_F(CFX_WindowsRenderDeviceTest, GargantuanClipRect) { |
| CFX_Path path_data; |
| |
| path_data.AppendRect(-257698020.0f, -257697252.0f, 257698044.0f, |
| 257698812.0f); |
| path_data.ClosePath(); |
| // These coordinates for a clip path are valid, just very large. Using these |
| // for a clip path should allow IntersectClipRect() to return success; |
| // however they do not because the GDI API IntersectClipRect() errors out and |
| // affect subsequent imaging. crbug.com/1019026 |
| EXPECT_FALSE(m_driver->SetClip_PathFill( |
| &path_data, &kIdentityMatrix, CFX_FillRenderOptions::WindingOptions())); |
| } |
| |
| TEST_F(CFX_WindowsRenderDeviceTest, GargantuanClipRectWithBaseClip) { |
| CFX_Path path_data; |
| const FX_RECT kBaseClip(0, 0, 5100, 6600); |
| |
| m_driver->SetBaseClip(kBaseClip); |
| path_data.AppendRect(-257698020.0f, -257697252.0f, 257698044.0f, |
| 257698812.0f); |
| path_data.ClosePath(); |
| // Use of a reasonable base clip ensures that we avoid getting an error back |
| // from GDI API IntersectClipRect(). |
| EXPECT_TRUE(m_driver->SetClip_PathFill( |
| &path_data, &kIdentityMatrix, CFX_FillRenderOptions::WindingOptions())); |
| } |