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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 _FDE_TXTEDTPAGE_H
#define _FDE_TXTEDTPAGE_H
class CFDE_TxtEdtEngine;
class IFX_CharIter;
class CFDE_TxtEdtPage;
class CFDE_TxtEdtLineExt;
class CFDE_TxtEdtTextSet;
class CFDE_TxtEdtParag;
enum FDE_TXTEDT_CHARTYPE {
FDE_TXTEDT_CHARTYPE_Unknown = 0 ,
FDE_TXTEDT_CHARTYPE_Tab ,
FDE_TXTEDT_CHARTYPE_Space ,
FDE_TXTEDT_CHARTYPE_Punctuation ,
FDE_TXTEDT_CHARTYPE_LineBreak ,
FDE_TXTEDT_CHARTYPE_Number ,
FDE_TXTEDT_CHARTYPE_Char ,
FDE_TXTEDT_CHARTYPE_CJK ,
};
static FDE_TXTEDT_CHARTYPE FDE_GetEditSelCharType(FX_WCHAR wChar)
{
if (wChar == 0x9) {
return FDE_TXTEDT_CHARTYPE_Tab;
} else if (wChar == 0x20 || wChar == 0xA0) {
return FDE_TXTEDT_CHARTYPE_Space;
} else if (wChar == 0x9 || wChar == 0x20 || wChar == 0xA0 || (wChar >= L'!' && wChar <= L'/') || (wChar >= L':' && wChar <= L'@') || (wChar >= L'[' && wChar <= L'^') ||
(wChar >= L'{' && wChar <= L'~') || wChar == 0x60) {
return FDE_TXTEDT_CHARTYPE_Punctuation;
} else if (wChar == 0x0a || wChar == 0x0d) {
return FDE_TXTEDT_CHARTYPE_LineBreak;
} else if (wChar >= '0' && wChar <= '9') {
return FDE_TXTEDT_CHARTYPE_Number;
} else if ((wChar >= 0x2e80 && wChar <= 0x2eff) || (wChar >= 0x3000 && wChar <= 0x303f) || (wChar >= 0x31c0 && wChar <= 0x31ef)
|| (wChar >= 0x3200 && wChar <= 0x32ff) || (wChar >= 0x3300 && wChar <= 0x33ff) || (wChar >= 0x3400 && wChar <= 0x4dbf)
|| (wChar >= 0x4e00 && wChar <= 0x9fff) || (wChar >= 0xf900 && wChar <= 0xfaff) || (wChar >= 0xfe30 && wChar <= 0xfe4f)) {
return FDE_TXTEDT_CHARTYPE_CJK;
} else {
return FDE_TXTEDT_CHARTYPE_Char;
}
}
typedef struct _FDE_TXTEDTPIECE {
FX_INT32 nStart;
FX_INT32 nCount;
FX_INT32 nBidiLevel;
CFX_RectF rtPiece;
FX_DWORD dwCharStyles;
} FDE_TEXTEDITPIECE, * FDE_LPTEXTEDITPIECE;
typedef CFX_MassArrayTemplate<FDE_TEXTEDITPIECE> CFDE_TXTEDTPieceMassArray;
class CFDE_TxtEdtTextSet : public IFDE_TextSet
{
public:
CFDE_TxtEdtTextSet(CFDE_TxtEdtPage * pPage);
~CFDE_TxtEdtTextSet();
virtual FDE_VISUALOBJTYPE GetType();
virtual FX_BOOL GetBBox(FDE_HVISUALOBJ hVisualObj, CFX_RectF &bbox);
virtual FX_BOOL GetMatrix(FDE_HVISUALOBJ hVisualObj, CFX_Matrix &matrix);
virtual FX_BOOL GetRect(FDE_HVISUALOBJ hVisualObj, CFX_RectF &rt);
virtual FX_BOOL GetClip(FDE_HVISUALOBJ hVisualObj, CFX_RectF &rt);
virtual FX_INT32 GetString(FDE_HVISUALOBJ hText, CFX_WideString &wsText);
virtual IFX_Font* GetFont(FDE_HVISUALOBJ hText);
virtual FX_FLOAT GetFontSize(FDE_HVISUALOBJ hText);
virtual FX_ARGB GetFontColor(FDE_HVISUALOBJ hText);
virtual FX_INT32 GetDisplayPos(FDE_HVISUALOBJ hText, FXTEXT_CHARPOS *pCharPos, FX_BOOL bCharCode = FALSE, CFX_WideString *pWSForms = NULL);
virtual FX_INT32 GetCharRects(FDE_HVISUALOBJ hText, CFX_RectFArray &rtArray);
virtual FX_INT32 GetCharRects_Impl(FDE_HVISUALOBJ hText, CFX_RectFArray &rtArray, FX_BOOL bBBox = FALSE);
private:
CFDE_TxtEdtPage * m_pPage;
};
class CFDE_TxtEdtPage : public IFDE_TxtEdtPage
{
public:
CFDE_TxtEdtPage(IFDE_TxtEdtEngine * pEngine, FX_INT32 nLineIndex);
virtual void Release();
virtual IFDE_TxtEdtEngine * GetEngine() const;
virtual FDE_VISUALOBJTYPE GetType();
virtual FX_BOOL GetBBox(FDE_HVISUALOBJ hVisualObj, CFX_RectF &bbox);
virtual FX_BOOL GetMatrix(FDE_HVISUALOBJ hVisualObj, CFX_Matrix &matrix);
virtual FX_BOOL GetRect(FDE_HVISUALOBJ hVisualObj, CFX_RectF &rt);
virtual FX_BOOL GetClip(FDE_HVISUALOBJ hVisualObj, CFX_RectF &rt);
virtual FX_INT32 GetCharRect(FX_INT32 nIndex, CFX_RectF &rect, FX_BOOL bBBox = FALSE) const;
virtual FX_INT32 GetCharIndex(const CFX_PointF &fPoint, FX_BOOL &bBefore);
virtual FX_INT32 SelectWord(const CFX_PointF &fPoint, FX_INT32 &nCount);
virtual FX_INT32 GetCharStart() const;
virtual FX_INT32 GetCharCount() const;
virtual void CalcRangeRectArray(FX_INT32 nStart, FX_INT32 nCount, CFX_RectFArray &RectFArr) const;
virtual FX_INT32 GetDisplayPos(const CFX_RectF &rtClip, FXTEXT_CHARPOS *&pCharPos, FX_LPRECTF pBBox) const;
virtual FX_BOOL IsLoaded(FX_LPCRECTF pClipBox = NULL);
virtual FX_INT32 LoadPage(FX_LPCRECTF pClipBox = NULL, IFX_Pause *pPause = NULL);
virtual void UnloadPage(FX_LPCRECTF pClipBox = NULL);
virtual const CFX_RectF& GetContentsBox();
virtual FX_POSITION GetFirstPosition(FDE_HVISUALOBJ hCanvas);
virtual FDE_HVISUALOBJ GetNext(FDE_HVISUALOBJ hCanvas, FX_POSITION &pos, IFDE_VisualSet *&pVisualSet);
virtual FDE_HVISUALOBJ GetParentCanvas(FDE_HVISUALOBJ hCanvas, IFDE_VisualSet *&pVisualSet);
virtual FX_WCHAR GetChar(FX_LPVOID pIdentity, FX_INT32 index) const;
virtual FX_INT32 GetWidth(FX_LPVOID pIdentity, FX_INT32 index) const;
protected:
virtual ~CFDE_TxtEdtPage();
private:
void NormalizePt2Rect(CFX_PointF &ptF, const CFX_RectF &rtF, FX_FLOAT fTolerance) const;
IFX_CharIter *m_pIter;
CFDE_TxtEdtTextSet *m_pTextSet;
CFDE_TxtEdtEngine *m_pEditEngine;
CFDE_TXTEDTPieceMassArray m_PieceMassArr;
CFDE_TxtEdtParag * m_pBgnParag;
CFDE_TxtEdtParag * m_pEndParag;
FX_INT32 m_nRefCount;
FX_INT32 m_nPageStart;
FX_INT32 m_nCharCount;
FX_INT32 m_nPageIndex;
FX_BOOL m_bLoaded;
FX_BOOL m_bLastPage;
CFX_RectF m_rtPage;
CFX_RectF m_rtPageMargin;
CFX_RectF m_rtPageContents;
CFX_RectF m_rtPageCanvas;
FX_INT32* m_pCharWidth;
};
#endif
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