| // Copyright 2022 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "xfa/fde/cfde_textout.h" |
| |
| #include <memory> |
| |
| #include "build/build_config.h" |
| #include "core/fdrm/fx_crypt.h" |
| #include "core/fxcrt/bytestring.h" |
| #include "core/fxcrt/fx_codepage.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxge/cfx_defaultrenderdevice.h" |
| #include "core/fxge/dib/cfx_dibitmap.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "testing/utils/hash.h" |
| #include "xfa/fgas/font/cfgas_fontmgr.h" |
| #include "xfa/fgas/font/cfgas_gefont.h" |
| #include "xfa/fgas/font/cfgas_gemodule.h" |
| |
| class CFDETextOutTest : public testing::Test { |
| public: |
| CFDETextOutTest() = default; |
| ~CFDETextOutTest() override = default; |
| |
| void SetUp() override { |
| CFX_Size bitmap_size = GetBitmapSize(); |
| bitmap_ = pdfium::MakeRetain<CFX_DIBitmap>(); |
| ASSERT_TRUE(bitmap_->Create(bitmap_size.width, bitmap_size.height, |
| FXDIB_Format::kArgb)); |
| |
| device_ = std::make_unique<CFX_DefaultRenderDevice>(); |
| device_->Attach(bitmap_); |
| |
| font_ = LoadFont(); |
| ASSERT_TRUE(font_); |
| |
| text_out_ = std::make_unique<CFDE_TextOut>(); |
| text_out_->SetFont(font_); |
| text_out_->SetFontSize(12.0f); |
| |
| EXPECT_STREQ(GetEmptyBitmapChecksum(), GetBitmapChecksum().c_str()); |
| } |
| |
| void TearDown() override { |
| text_out_.reset(); |
| font_.Reset(); |
| device_.reset(); |
| bitmap_.Reset(); |
| } |
| |
| virtual RetainPtr<CFGAS_GEFont> LoadFont() { |
| const wchar_t kFontFamily[] = L"Arimo Bold"; |
| return CFGAS_GEFont::LoadFont(kFontFamily, /*dwFontStyles=*/0, |
| FX_CodePage::kDefANSI); |
| } |
| |
| virtual CFX_Size GetBitmapSize() { return CFX_Size(200, 100); } |
| |
| virtual const char* GetEmptyBitmapChecksum() { |
| static const char kEmptyBitmapChecksum[] = |
| "a042237c5493fdb9656b94a83608d11a"; |
| return kEmptyBitmapChecksum; |
| } |
| |
| CFX_DefaultRenderDevice* device() { return device_.get(); } |
| CFDE_TextOut& text_out() { return *text_out_; } |
| |
| ByteString GetBitmapChecksum() { |
| CRYPT_md5_context context = CRYPT_MD5Start(); |
| for (int i = 0; i < bitmap_->GetHeight(); ++i) |
| CRYPT_MD5Update(&context, bitmap_->GetScanline(i)); |
| uint8_t digest[16]; |
| CRYPT_MD5Finish(&context, digest); |
| return ByteString(CryptToBase16(digest).c_str()); |
| } |
| |
| private: |
| RetainPtr<CFX_DIBitmap> bitmap_; |
| std::unique_ptr<CFX_DefaultRenderDevice> device_; |
| RetainPtr<CFGAS_GEFont> font_; |
| std::unique_ptr<CFDE_TextOut> text_out_; |
| }; |
| |
| TEST_F(CFDETextOutTest, DrawLogicTextBasic) { |
| text_out().DrawLogicText(device(), L"foo", CFX_RectF(0, 0, 2100, 100)); |
| const char* checksum = []() { |
| #if BUILDFLAG(IS_WIN) |
| if (CFX_DefaultRenderDevice::SkiaIsDefaultRenderer()) |
| return "76fd535f7d490d963598474494d0701e"; |
| #endif |
| return "b26f1c171fcdbf185823364185adacf0"; |
| }(); |
| EXPECT_STREQ(checksum, GetBitmapChecksum().c_str()); |
| } |
| |
| TEST_F(CFDETextOutTest, DrawLogicTextEmptyRect) { |
| text_out().DrawLogicText(device(), L"foo", CFX_RectF()); |
| EXPECT_STREQ(GetEmptyBitmapChecksum(), GetBitmapChecksum().c_str()); |
| } |
| |
| #if !BUILDFLAG(IS_WIN) |
| // This test depends on a particular font being present. |
| class CFDETextOutLargeBitmapTest : public CFDETextOutTest { |
| public: |
| CFDETextOutLargeBitmapTest() = default; |
| ~CFDETextOutLargeBitmapTest() override = default; |
| |
| RetainPtr<CFGAS_GEFont> LoadFont() override { |
| const wchar_t kFontFamily[] = L"DejaVu Sans"; |
| auto* font_manager = CFGAS_GEModule::Get()->GetFontMgr(); |
| return font_manager->LoadFont(kFontFamily, /*dwFontStyles=*/0, |
| FX_CodePage::kFailure); |
| } |
| |
| CFX_Size GetBitmapSize() override { return CFX_Size(2100, 20); } |
| |
| const char* GetEmptyBitmapChecksum() override { |
| static const char kEmptyLargeBitmapChecksum[] = |
| "101745f76351fd5d916bf3817b71563c"; |
| return kEmptyLargeBitmapChecksum; |
| } |
| |
| const char* GetLargeTextBlobChecksum() { |
| if (CFX_DefaultRenderDevice::SkiaIsDefaultRenderer()) { |
| return "cd357c6afbf17bb2ac48817df5d9eaad"; |
| } |
| return "268b71a8660b51e31c6bf30fc7ff1e08"; |
| } |
| }; |
| |
| TEST_F(CFDETextOutLargeBitmapTest, DrawLogicTextBug953881) { |
| FDE_TextStyle styles; |
| styles.single_line_ = true; |
| text_out().SetStyles(styles); |
| text_out().SetAlignment(FDE_TextAlignment::kCenterLeft); |
| text_out().SetFontSize(10.0f); |
| |
| static const wchar_t kText[] = |
| L"SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" |
| L"SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssnnnnnnnnnnn" |
| "\xfeba" |
| L"Sssssssssssssssssss" |
| "\xfeba" |
| L"iiiiisssss"; |
| text_out().DrawLogicText(device(), WideString(kText), |
| CFX_RectF(3, 3, 2048, 10)); |
| EXPECT_STREQ(GetLargeTextBlobChecksum(), GetBitmapChecksum().c_str()); |
| } |
| |
| TEST_F(CFDETextOutLargeBitmapTest, DrawLogicTextBug1342078) { |
| FDE_TextStyle styles; |
| styles.single_line_ = true; |
| text_out().SetStyles(styles); |
| text_out().SetAlignment(FDE_TextAlignment::kCenterLeft); |
| text_out().SetFontSize(10.0f); |
| |
| static const wchar_t kText[] = |
| L"SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" |
| L"SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss" |
| L"sssssssssssssssssssssssssssssssssssssssssssssssssnnnnnnnnnnn" |
| "\xfeba" |
| L"Sssssssssssssssssss" |
| "\xfeba" |
| L"iiiiiiiiiisssss"; |
| text_out().DrawLogicText(device(), WideString(kText), |
| CFX_RectF(3, 3, 2048, 10)); |
| EXPECT_STREQ(GetLargeTextBlobChecksum(), GetBitmapChecksum().c_str()); |
| } |
| #endif // !BUILDFLAG(IS_WIN) |