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80 lines
2.4 KiB
80 lines
2.4 KiB
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FGAS_LAYOUT_CFX_RTFBREAK_H_
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#define XFA_FGAS_LAYOUT_CFX_RTFBREAK_H_
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#include <deque>
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#include <vector>
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#include "core/fxcrt/fx_coordinates.h"
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#include "core/fxcrt/fx_unicode.h"
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#include "core/fxcrt/retain_ptr.h"
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#include "xfa/fgas/layout/cfx_break.h"
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class CFGAS_GEFont;
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class CFX_TextUserData;
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class CFX_TextPiece;
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class TextCharPos;
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enum class CFX_RTFLineAlignment {
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Left = 0,
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Center,
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Right,
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Justified,
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Distributed
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};
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class CFX_RTFBreak final : public CFX_Break {
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public:
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explicit CFX_RTFBreak(uint32_t dwLayoutStyles);
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~CFX_RTFBreak() override;
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void SetLineStartPos(float fLinePos);
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void SetAlignment(CFX_RTFLineAlignment align) { m_iAlignment = align; }
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void SetUserData(const RetainPtr<CFX_TextUserData>& pUserData);
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void AddPositionedTab(float fTabPos);
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CFX_BreakType EndBreak(CFX_BreakType dwStatus);
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size_t GetDisplayPos(const CFX_TextPiece* pPiece,
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std::vector<TextCharPos>* pCharPos) const;
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CFX_BreakType AppendChar(wchar_t wch);
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private:
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void AppendChar_Combination(CFX_Char* pCurChar);
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void AppendChar_Tab(CFX_Char* pCurChar);
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CFX_BreakType AppendChar_Control(CFX_Char* pCurChar);
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CFX_BreakType AppendChar_Arabic(CFX_Char* pCurChar);
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CFX_BreakType AppendChar_Others(CFX_Char* pCurChar);
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bool GetPositionedTab(int32_t* iTabPos) const;
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int32_t GetBreakPos(std::vector<CFX_Char>& tca,
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bool bAllChars,
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bool bOnlyBrk,
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int32_t* pEndPos);
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void SplitTextLine(CFX_BreakLine* pCurLine,
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CFX_BreakLine* pNextLine,
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bool bAllChars);
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bool EndBreak_SplitLine(CFX_BreakLine* pNextLine,
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bool bAllChars,
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CFX_BreakType dwStatus);
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void EndBreak_BidiLine(std::deque<FX_TPO>* tpos, CFX_BreakType dwStatus);
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void EndBreak_Alignment(const std::deque<FX_TPO>& tpos,
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bool bAllChars,
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CFX_BreakType dwStatus);
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bool m_bPagination;
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std::vector<int32_t> m_PositionedTabs;
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CFX_RTFLineAlignment m_iAlignment;
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RetainPtr<CFX_TextUserData> m_pUserData;
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};
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#endif // XFA_FGAS_LAYOUT_CFX_RTFBREAK_H_
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