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// Copyright 2014 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
#ifndef XFA_FDE_CFDE_TXTEDTPAGE_H_
#define XFA_FDE_CFDE_TXTEDTPAGE_H_
#include <deque>
#include <memory>
#include <vector>
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/ifx_chariter.h"
#include "core/fxge/cfx_renderdevice.h"
class CFDE_TxtEdtEngine;
class CFDE_TxtEdtParag;
class CFDE_TxtEdtTextSet;
struct FDE_TEXTEDITPIECE {
FDE_TEXTEDITPIECE();
FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that);
~FDE_TEXTEDITPIECE();
int32_t nStart;
int32_t nCount;
int32_t nBidiLevel;
CFX_RectF rtPiece;
uint32_t dwCharStyles;
};
inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE() = default;
inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that) =
default;
inline FDE_TEXTEDITPIECE::~FDE_TEXTEDITPIECE() = default;
class CFDE_TxtEdtPage {
public:
CFDE_TxtEdtPage(CFDE_TxtEdtEngine* pEngine, int32_t nLineIndex);
~CFDE_TxtEdtPage();
CFX_RectF GetRect(const FDE_TEXTEDITPIECE& pPiece);
CFDE_TxtEdtEngine* GetEngine() const;
int32_t GetCharRect(int32_t nIndex, CFX_RectF& rect, bool bBBox) const;
int32_t GetCharIndex(const CFX_PointF& fPoint, bool& bBefore);
void CalcRangeRectArray(int32_t nStart,
int32_t nCount,
std::vector<CFX_RectF>* RectFArr) const;
int32_t SelectWord(const CFX_PointF& fPoint, int32_t& nCount);
int32_t GetCharStart() const;
int32_t GetCharCount() const;
int32_t GetDisplayPos(const CFX_RectF& rtClip,
FXTEXT_CHARPOS*& pCharPos,
CFX_RectF* pBBox) const;
bool IsLoaded(const CFX_RectF* pClipBox);
int32_t LoadPage(const CFX_RectF* pClipBox);
void UnloadPage(const CFX_RectF* pClipBox);
const CFX_RectF& GetContentsBox();
size_t GetTextPieceCount() const;
const FDE_TEXTEDITPIECE& GetTextPiece(size_t pos) const;
wchar_t GetChar(const FDE_TEXTEDITPIECE* pIdentity, int32_t index) const;
int32_t GetWidth(const FDE_TEXTEDITPIECE* pIdentity, int32_t index) const;
CFDE_TxtEdtTextSet* GetTextSet() const { return m_pTextSet.get(); }
private:
void NormalizePt2Rect(CFX_PointF& ptF,
const CFX_RectF& rtF,
float fTolerance) const;
std::unique_ptr<IFX_CharIter> m_pIter;
std::unique_ptr<CFDE_TxtEdtTextSet> m_pTextSet;
CFX_UnownedPtr<CFDE_TxtEdtEngine> const m_pEditEngine;
std::deque<FDE_TEXTEDITPIECE> m_Pieces;
CFDE_TxtEdtParag* m_pBgnParag;
CFDE_TxtEdtParag* m_pEndParag;
int32_t m_nRefCount;
int32_t m_nPageStart;
int32_t m_nCharCount;
int32_t m_nPageIndex;
bool m_bLoaded;
CFX_RectF m_rtPage;
CFX_RectF m_rtPageMargin;
CFX_RectF m_rtPageContents;
CFX_RectF m_rtPageCanvas;
std::vector<int32_t> m_CharWidths;
};
#endif // XFA_FDE_CFDE_TXTEDTPAGE_H_
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