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// Copyright 2017 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.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "xfa/fgas/layout/cfgas_rtfbreak.h"
#include <memory>
#include <utility>
#include "core/fxcrt/fx_codepage.h"
#include "core/fxge/cfx_font.h"
#include "core/fxge/cfx_gemodule.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "xfa/fgas/font/cfgas_fontmgr.h"
#include "xfa/fgas/font/cfgas_gefont.h"
#include "xfa/fgas/layout/cfgas_char.h"
class CFGAS_RTFBreakTest : public testing::Test {
public:
void SetUp() override {
font_ = CFGAS_GEFont::LoadFont(L"Arial Black", 0, FX_CodePage::kDefANSI);
ASSERT_TRUE(font_);
}
std::unique_ptr<CFGAS_RTFBreak> CreateBreak(uint32_t layout_styles) {
auto rtf_break = std::make_unique<CFGAS_RTFBreak>(layout_styles);
rtf_break->SetFont(font_);
return rtf_break;
}
private:
RetainPtr<CFGAS_GEFont> font_;
};
// As soon as you get one of the control characters the break is complete
// and must be consumed before you get any more characters ....
TEST_F(CFGAS_RTFBreakTest, AddChars) {
auto rtf_break = CreateBreak(FX_LAYOUTSTYLE_ExpandTab);
WideString str(L"Input String.");
for (wchar_t ch : str)
EXPECT_EQ(CFGAS_Char::BreakType::kNone, rtf_break->AppendChar(ch));
EXPECT_EQ(CFGAS_Char::BreakType::kParagraph, rtf_break->AppendChar(L'\n'));
ASSERT_EQ(1, rtf_break->CountBreakPieces());
EXPECT_EQ(str + L"\n", rtf_break->GetBreakPieceUnstable(0)->GetString());
rtf_break->ClearBreakPieces();
rtf_break->Reset();
EXPECT_EQ(0, rtf_break->GetCurrentLineForTesting()->GetLineEnd());
str = L"Second str.";
for (wchar_t ch : str)
EXPECT_EQ(CFGAS_Char::BreakType::kNone, rtf_break->AppendChar(ch));
// Force the end of the break at the end of the string.
rtf_break->EndBreak(CFGAS_Char::BreakType::kParagraph);
ASSERT_EQ(1, rtf_break->CountBreakPieces());
EXPECT_EQ(str, rtf_break->GetBreakPieceUnstable(0)->GetString());
}
TEST_F(CFGAS_RTFBreakTest, ControlCharacters) {
auto rtf_break = CreateBreak(FX_LAYOUTSTYLE_ExpandTab);
EXPECT_EQ(CFGAS_Char::BreakType::kLine, rtf_break->AppendChar(L'\v'));
EXPECT_EQ(CFGAS_Char::BreakType::kPage, rtf_break->AppendChar(L'\f'));
EXPECT_EQ(CFGAS_Char::BreakType::kParagraph,
rtf_break->AppendChar(pdfium::unicode::kParagraphSeparator));
EXPECT_EQ(CFGAS_Char::BreakType::kParagraph, rtf_break->AppendChar(L'\n'));
ASSERT_EQ(1, rtf_break->CountBreakPieces());
EXPECT_EQ(L"\v", rtf_break->GetBreakPieceUnstable(0)->GetString());
}
TEST_F(CFGAS_RTFBreakTest, BidiLine) {
auto rtf_break = CreateBreak(FX_LAYOUTSTYLE_ExpandTab);
rtf_break->SetLineBreakTolerance(1);
rtf_break->SetFontSize(12);
WideString input = WideString::FromUTF8(ByteStringView("\xa\x0\xa\xa", 4));
for (wchar_t ch : input)
rtf_break->AppendChar(ch);
std::vector<CFGAS_Char> chars =
rtf_break->GetCurrentLineForTesting()->m_LineChars;
CFGAS_Char::BidiLine(&chars, chars.size());
EXPECT_EQ(3u, chars.size());
}