C++ CFX_ByteTextBuf::GetSize方法代码示例

void CFX_PSRenderer::SetGraphState(const CFX_GraphStateData* pGraphState)
{
    CFX_ByteTextBuf buf;
    if (!m_bGraphStateSet || m_CurGraphState.m_LineCap != pGraphState->m_LineCap) {
        buf << pGraphState->m_LineCap << FX_BSTRC(" J\n");
    }
    if (!m_bGraphStateSet || m_CurGraphState.m_DashCount != pGraphState->m_DashCount ||
            FXSYS_memcmp32(m_CurGraphState.m_DashArray, pGraphState->m_DashArray, sizeof(FX_FLOAT)*m_CurGraphState.m_DashCount)) {
        buf << FX_BSTRC("[");
        for (int i = 0; i < pGraphState->m_DashCount; i ++) {
            buf << pGraphState->m_DashArray[i] << FX_BSTRC(" ");
        }
        buf << FX_BSTRC("]") << pGraphState->m_DashPhase << FX_BSTRC(" d\n");
    }
    if (!m_bGraphStateSet || m_CurGraphState.m_LineJoin != pGraphState->m_LineJoin) {
        buf << pGraphState->m_LineJoin << FX_BSTRC(" j\n");
    }
    if (!m_bGraphStateSet || m_CurGraphState.m_LineWidth != pGraphState->m_LineWidth) {
        buf << pGraphState->m_LineWidth << FX_BSTRC(" w\n");
    }
    if (!m_bGraphStateSet || m_CurGraphState.m_MiterLimit != pGraphState->m_MiterLimit) {
        buf << pGraphState->m_MiterLimit << FX_BSTRC(" M\n");
    }
    m_CurGraphState.Copy(*pGraphState);
    m_bGraphStateSet = TRUE;
    if (buf.GetSize()) {
        m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
    }
}

void CFX_PSRenderer::SetColor(FX_DWORD color, int alpha_flag, void* pIccTransform)
{
    if (!CFX_GEModule::Get()->GetCodecModule() || !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) {
        pIccTransform = NULL;
    }
    FX_BOOL bCMYK = FALSE;
    if (pIccTransform) {
        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
        color = FXGETFLAG_COLORTYPE(alpha_flag) ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
        FX_LPBYTE pColor = (FX_LPBYTE)&color;
        pIccModule->TranslateScanline(pIccTransform, pColor, pColor, 1);
        color = m_bCmykOutput ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
        bCMYK = m_bCmykOutput;
    } else {
        bCMYK = FXGETFLAG_COLORTYPE(alpha_flag);
    }
    if (bCMYK != m_bCmykOutput || !m_bColorSet || m_LastColor != color) {
        CFX_ByteTextBuf buf;
        if (bCMYK) {
            buf << FXSYS_GetCValue(color) / 255.0 << FX_BSTRC(" ") << FXSYS_GetMValue(color) / 255.0 << FX_BSTRC(" ")
                << FXSYS_GetYValue(color) / 255.0 << FX_BSTRC(" ") << FXSYS_GetKValue(color) / 255.0 << FX_BSTRC(" k\n");
        } else {
            buf << FXARGB_R(color) / 255.0 << FX_BSTRC(" ") << FXARGB_G(color) / 255.0 << FX_BSTRC(" ")
                << FXARGB_B(color) / 255.0 << FX_BSTRC(" rg\n");
        }
        if (bCMYK == m_bCmykOutput) {
            m_bColorSet = TRUE;
            m_LastColor = color;
        }
        m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
    }
}

FX_BOOL CFX_PSRenderer::DrawPath(const CFX_PathData* pPathData,
                                 const CFX_AffineMatrix* pObject2Device,
                                 const CFX_GraphStateData* pGraphState,
                                 FX_DWORD fill_color,
                                 FX_DWORD stroke_color,
                                 int fill_mode,
                                 int alpha_flag,
                                 void* pIccTransform
                                )
{
    StartRendering();
    int fill_alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(fill_color);
    int stroke_alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_STROKE(alpha_flag) : FXARGB_A(stroke_color);
    if (fill_alpha && fill_alpha < 255) {
        return FALSE;
    }
    if (stroke_alpha && stroke_alpha < 255) {
        return FALSE;
    }
    if (fill_alpha == 0 && stroke_alpha == 0) {
        return FALSE;
    }
    if (stroke_alpha) {
        SetGraphState(pGraphState);
        if (pObject2Device) {
            CFX_ByteTextBuf buf;
            buf << FX_BSTRC("mx Cm [") << pObject2Device->a << FX_BSTRC(" ") << pObject2Device->b << FX_BSTRC(" ") <<
                pObject2Device->c << FX_BSTRC(" ") << pObject2Device->d << FX_BSTRC(" ") << pObject2Device->e <<
                FX_BSTRC(" ") << pObject2Device->f << FX_BSTRC("]cm ");
            m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
        }
    }
    OutputPath(pPathData, stroke_alpha ? NULL : pObject2Device);
    if (fill_mode && fill_alpha) {
        SetColor(fill_color, alpha_flag, pIccTransform);
        if ((fill_mode & 3) == FXFILL_WINDING) {
            if (stroke_alpha) {
                OUTPUT_PS("q f Q ");
            } else {
                OUTPUT_PS("f");
            }
        } else if ((fill_mode & 3) == FXFILL_ALTERNATE) {
            if (stroke_alpha) {
                OUTPUT_PS("q F Q ");
            } else {
                OUTPUT_PS("F");
            }
        }
    }
    if (stroke_alpha) {
        SetColor(stroke_color, alpha_flag, pIccTransform);
        if (pObject2Device) {
            OUTPUT_PS("s sm");
        } else {
            OUTPUT_PS("s");
        }
    }
    OUTPUT_PS("\n");
    return TRUE;
}

FX_BOOL CFDF_Document::WriteFile(IFX_FileWrite *pFile) const
{
    CFX_ByteTextBuf buf;
    WriteBuf(buf);
    FX_BOOL bRet = pFile->WriteBlock(buf.GetBuffer(), buf.GetSize());
    if (bRet) {
        pFile->Flush();
    }
    return bRet;
}

void CFX_PSRenderer::OutputPath(const CFX_PathData* pPathData, const CFX_AffineMatrix* pObject2Device)
{
    int nPoints = pPathData->GetPointCount();
    CFX_ByteTextBuf buf;
    buf.EstimateSize(nPoints * 10);
    for (int i = 0; i < nPoints; i ++) {
        FX_BYTE flag = pPathData->GetFlag(i);
        FX_FLOAT x = pPathData->GetPointX(i);
        FX_FLOAT y = pPathData->GetPointY(i);
        if (pObject2Device) {
            pObject2Device->Transform(x, y);
        }
        buf << x << FX_BSTRC(" ") << y;
        switch (flag & FXPT_TYPE) {
            case FXPT_MOVETO:
                buf << FX_BSTRC(" m ");
                break;
            case FXPT_LINETO:
                if (flag & FXPT_CLOSEFIGURE) {
                    buf << FX_BSTRC(" l h ");
                } else {
                    buf << FX_BSTRC(" l ");
                }
                break;
            case FXPT_BEZIERTO: {
                    FX_FLOAT x1 = pPathData->GetPointX(i + 1);
                    FX_FLOAT x2 = pPathData->GetPointX(i + 2);
                    FX_FLOAT y1 = pPathData->GetPointY(i + 1);
                    FX_FLOAT y2 = pPathData->GetPointY(i + 2);
                    if (pObject2Device) {
                        pObject2Device->Transform(x1, y1);
                        pObject2Device->Transform(x2, y2);
                    }
                    buf << FX_BSTRC(" ") << x1 << FX_BSTRC(" ") << y1 << FX_BSTRC(" ") << x2 << FX_BSTRC(" ") << y2;
                    if (flag & FXPT_CLOSEFIGURE) {
                        buf << FX_BSTRC(" c h\n");
                    } else {
                        buf << FX_BSTRC(" c\n");
                    }
                    i += 2;
                    break;
                }
        }
    }
    m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
}

FX_BOOL CFX_PSRenderer::DrawText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont,
                                 CFX_FontCache* pCache, const CFX_AffineMatrix* pObject2Device,
                                 FX_FLOAT font_size, FX_DWORD color,
                                 int alpha_flag, void* pIccTransform)
{
    StartRendering();
    int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color);
    if (alpha < 255) {
        return FALSE;
    }
    if ((pObject2Device->a == 0 && pObject2Device->b == 0) || (pObject2Device->c == 0 && pObject2Device->d == 0)) {
        return TRUE;
    }
    SetColor(color, alpha_flag, pIccTransform);
    CFX_ByteTextBuf buf;
    buf << FX_BSTRC("q[") << pObject2Device->a << FX_BSTRC(" ") << pObject2Device->b << FX_BSTRC(" ")
        << pObject2Device->c << FX_BSTRC(" ") << pObject2Device->d;
    buf << FX_BSTRC(" ") << pObject2Device->e << FX_BSTRC(" ") << pObject2Device->f << "]cm\n";
    if (pCache == NULL) {
        pCache = CFX_GEModule::Get()->GetFontCache();
    }
    CFX_FaceCache* pFaceCache = pCache->GetCachedFace(pFont);
    FX_FONTCACHE_DEFINE(pCache, pFont);
    int last_fontnum = -1;
    for (int i = 0; i < nChars; i ++) {
        int ps_fontnum, ps_glyphindex;
        FindPSFontGlyph(pFaceCache, pFont, pCharPos[i], ps_fontnum, ps_glyphindex);
        if (last_fontnum != ps_fontnum) {
            buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff ") << font_size
                << FX_BSTRC(" Fs Sf ");
            last_fontnum = ps_fontnum;
        }
        buf << pCharPos[i].m_OriginX << FX_BSTRC(" ")
            << pCharPos[i].m_OriginY << FX_BSTRC(" m");
        CFX_ByteString hex;
        hex.Format("<%02X>", ps_glyphindex);
        buf << hex << FX_BSTRC("Tj\n");
    }
    buf << FX_BSTRC("Q\n");
    m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
    return TRUE;
}

void CFX_PSRenderer::SetClip_PathStroke(const CFX_PathData* pPathData,
                                        const CFX_AffineMatrix* pObject2Device,
                                        const CFX_GraphStateData* pGraphState
                                       )
{
    StartRendering();
    SetGraphState(pGraphState);
    if (pObject2Device) {
        CFX_ByteTextBuf buf;
        buf << FX_BSTRC("mx Cm [") << pObject2Device->a << FX_BSTRC(" ") << pObject2Device->b << FX_BSTRC(" ") <<
            pObject2Device->c << FX_BSTRC(" ") << pObject2Device->d << FX_BSTRC(" ") << pObject2Device->e <<
            FX_BSTRC(" ") << pObject2Device->f << FX_BSTRC("]cm ");
        m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
    }
    OutputPath(pPathData, NULL);
    CFX_FloatRect rect = pPathData->GetBoundingBox(pGraphState->m_LineWidth, pGraphState->m_MiterLimit);
    rect.Transform(pObject2Device);
    m_ClipBox.Intersect(rect.GetOutterRect());
    if (pObject2Device) {
        OUTPUT_PS("strokepath W n sm\n");
    } else {
        OUTPUT_PS("strokepath W n\n");
    }
}

DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
                                                       FS_MATRIX* matrix,
                                                       FS_RECTF* clipRect) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return FALSE;

  CFX_ByteTextBuf textBuf;
  textBuf << "q ";
  CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right,
                     clipRect->top);
  rect.Normalize();
  CFX_ByteString bsClipping;
  bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom,
                    rect.Width(), rect.Height());
  textBuf << bsClipping;

  CFX_ByteString bsMatix;
  bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b, matrix->c,
                 matrix->d, matrix->e, matrix->f);
  textBuf << bsMatix;

  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
  CPDF_Object* pContentObj =
      pPageDic ? pPageDic->GetElement("Contents") : nullptr;
  if (!pContentObj)
    pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
  if (!pContentObj)
    return FALSE;

  CPDF_Dictionary* pDic = new CPDF_Dictionary;
  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
  pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
  CPDF_Document* pDoc = pPage->m_pDocument;
  if (!pDoc)
    return FALSE;
  pDoc->AddIndirectObject(pStream);

  pDic = new CPDF_Dictionary;
  CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic);
  pEndStream->SetData((const uint8_t*)" Q", 2, FALSE, FALSE);
  pDoc->AddIndirectObject(pEndStream);

  CPDF_Array* pContentArray = nullptr;
  if (CPDF_Array* pArray = ToArray(pContentObj)) {
    pContentArray = pArray;
    CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
    pContentArray->InsertAt(0, pRef);
    pContentArray->AddReference(pDoc, pEndStream);
  } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
    CPDF_Object* pDirectObj = pReference->GetDirect();
    if (pDirectObj) {
      if (CPDF_Array* pArray = pDirectObj->AsArray()) {
        pContentArray = pArray;
        CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
        pContentArray->InsertAt(0, pRef);
        pContentArray->AddReference(pDoc, pEndStream);
      } else if (pDirectObj->IsStream()) {
        pContentArray = new CPDF_Array();
        pContentArray->AddReference(pDoc, pStream->GetObjNum());
        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
        pContentArray->AddReference(pDoc, pEndStream);
        pPageDic->SetAtReference("Contents", pDoc,
                                 pDoc->AddIndirectObject(pContentArray));
      }
    }
  }

  // Need to transform the patterns as well.
  CPDF_Dictionary* pRes = pPageDic->GetDictBy("Resources");
  if (pRes) {
    CPDF_Dictionary* pPattenDict = pRes->GetDictBy("Pattern");
    if (pPattenDict) {
      for (const auto& it : *pPattenDict) {
        CPDF_Object* pObj = it.second;
        if (pObj->IsReference())
          pObj = pObj->GetDirect();

        CPDF_Dictionary* pDict = nullptr;
        if (pObj->IsDictionary())
          pDict = pObj->AsDictionary();
        else if (CPDF_Stream* pStream = pObj->AsStream())
          pDict = pStream->GetDict();
        else
          continue;

        CFX_Matrix m = pDict->GetMatrixBy("Matrix");
        CFX_Matrix t = *(CFX_Matrix*)matrix;
        m.Concat(t);
        pDict->SetAtMatrix("Matrix", m);
      }
    }
  }

  return TRUE;
}

DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
                                               FPDF_CLIPPATH clipPath) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return;

  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
  CPDF_Object* pContentObj =
      pPageDic ? pPageDic->GetElement("Contents") : nullptr;
  if (!pContentObj)
    pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
  if (!pContentObj)
    return;

  CFX_ByteTextBuf strClip;
  CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
  FX_DWORD i;
  for (i = 0; i < pClipPath->GetPathCount(); i++) {
    CPDF_Path path = pClipPath->GetPath(i);
    int iClipType = pClipPath->GetClipType(i);
    if (path.GetPointCount() == 0) {
      // Empty clipping (totally clipped out)
      strClip << "0 0 m W n ";
    } else {
      OutputPath(strClip, path);
      if (iClipType == FXFILL_WINDING)
        strClip << "W n\n";
      else
        strClip << "W* n\n";
    }
  }
  CPDF_Dictionary* pDic = new CPDF_Dictionary;
  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
  pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
  CPDF_Document* pDoc = pPage->m_pDocument;
  if (!pDoc)
    return;
  pDoc->AddIndirectObject(pStream);

  CPDF_Array* pContentArray = nullptr;
  if (CPDF_Array* pArray = ToArray(pContentObj)) {
    pContentArray = pArray;
    CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
    pContentArray->InsertAt(0, pRef);
  } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
    CPDF_Object* pDirectObj = pReference->GetDirect();
    if (pDirectObj) {
      if (CPDF_Array* pArray = pDirectObj->AsArray()) {
        pContentArray = pArray;
        CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
        pContentArray->InsertAt(0, pRef);
      } else if (pDirectObj->IsStream()) {
        pContentArray = new CPDF_Array();
        pContentArray->AddReference(pDoc, pStream->GetObjNum());
        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
        pPageDic->SetAtReference("Contents", pDoc,
                                 pDoc->AddIndirectObject(pContentArray));
      }
    }
  }
}

DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page, FS_MATRIX* matrix, FS_RECTF* clipRect)
{
	if(!page)
		return FALSE;

	CFX_ByteTextBuf textBuf;
	textBuf<<"q ";
	CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right, clipRect->top);
	rect.Normalize();
	CFX_ByteString bsClipping;
	bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom, rect.Width(), rect.Height());
	textBuf<<bsClipping;

	CFX_ByteString bsMatix;
	bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b,matrix->c,matrix->d,matrix->e,matrix->f);
	textBuf<<bsMatix;
	

	CPDF_Page* pPage = (CPDF_Page*)page;
	CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
	CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
	if(!pContentObj)
		pContentObj = pPageDic->GetArray("Contents");
	if(!pContentObj)
		return FALSE;
	
	CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
	CPDF_Document* pDoc = pPage->m_pDocument;
	if(!pDoc)
		return FALSE;
	pDoc->AddIndirectObject(pStream);

	pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pEndStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pEndStream->SetData((FX_LPCBYTE)" Q", 2, FALSE, FALSE);
	pDoc->AddIndirectObject(pEndStream);
	
	CPDF_Array* pContentArray = NULL;
	if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
	{
		pContentArray = (CPDF_Array*)pContentObj;
		CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
		pContentArray->InsertAt(0, pRef);
		pContentArray->AddReference(pDoc,pEndStream);
		
	}
	else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
	{
		CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
		CPDF_Object* pDirectObj = pReference->GetDirect();
		if(pDirectObj != NULL)
		{
			if(pDirectObj->GetType() == PDFOBJ_ARRAY)
			{
				pContentArray = (CPDF_Array*)pDirectObj;
				CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
				pContentArray->InsertAt(0, pRef);
				pContentArray->AddReference(pDoc,pEndStream);
				
			}
			else if(pDirectObj->GetType() == PDFOBJ_STREAM)
			{
				pContentArray = FX_NEW CPDF_Array();
				pContentArray->AddReference(pDoc,pStream->GetObjNum());
				pContentArray->AddReference(pDoc,pDirectObj->GetObjNum());
				pContentArray->AddReference(pDoc, pEndStream);
				pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray));
			}
		}
	}	

	//Need to transform the patterns as well.
	CPDF_Dictionary* pRes = pPageDic->GetDict(FX_BSTRC("Resources"));
	if(pRes)
	{
		CPDF_Dictionary* pPattenDict = pRes->GetDict(FX_BSTRC("Pattern"));
		if(pPattenDict)
		{
			FX_POSITION pos = pPattenDict->GetStartPos();
			while(pos)
			{
				CPDF_Dictionary* pDict = NULL;
				CFX_ByteString key;
				CPDF_Object* pObj = pPattenDict->GetNextElement(pos, key);
				if(pObj->GetType() == PDFOBJ_REFERENCE)
					pObj = pObj->GetDirect();
				if(pObj->GetType() == PDFOBJ_DICTIONARY)
				{
					pDict = (CPDF_Dictionary*)pObj;
				}
				else if(pObj->GetType() == PDFOBJ_STREAM)
				{
					pDict = ((CPDF_Stream*)pObj)->GetDict();
				}
				else
					continue;
				
				CFX_AffineMatrix m = pDict->GetMatrix(FX_BSTRC("Matrix"));
//.........这里部分代码省略.........

DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,FPDF_CLIPPATH clipPath)
{
	if(!page)
		return;
	CPDF_Page* pPage = (CPDF_Page*)page;
	CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
	CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
	if(!pContentObj)
		pContentObj = pPageDic->GetArray("Contents");
	if(!pContentObj)
		return;

	CFX_ByteTextBuf strClip;
	CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
	FX_DWORD i;
	for (i = 0; i < pClipPath->GetPathCount(); i ++) {
		CPDF_Path path = pClipPath->GetPath(i);
		int iClipType = pClipPath->GetClipType(i);
		if (path.GetPointCount() == 0) {
			// Empty clipping (totally clipped out)
			strClip << "0 0 m W n ";
		} else {
			OutputPath(strClip, path);
			if (iClipType == FXFILL_WINDING)
				strClip << "W n\n";
			else
				strClip << "W* n\n";
		}
	}
	CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary;
	CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic);
	pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
	CPDF_Document* pDoc = pPage->m_pDocument;
	if(!pDoc)
		return;
	pDoc->AddIndirectObject(pStream);
	
	CPDF_Array* pContentArray = NULL;
	if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
	{
		pContentArray = (CPDF_Array*)pContentObj;
		CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
		pContentArray->InsertAt(0, pRef);
		
	}
	else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
	{
		CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
		CPDF_Object* pDirectObj = pReference->GetDirect();
		if(pDirectObj != NULL)
		{
			if(pDirectObj->GetType() == PDFOBJ_ARRAY)
			{
				pContentArray = (CPDF_Array*)pDirectObj;
				CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
				pContentArray->InsertAt(0, pRef);
				
			}
			else if(pDirectObj->GetType() == PDFOBJ_STREAM)
			{
				pContentArray = FX_NEW CPDF_Array();
				pContentArray->AddReference(pDoc,pStream->GetObjNum());
				pContentArray->AddReference(pDoc,pDirectObj->GetObjNum());
				pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray));
			}
		}
	}	
}

void CFX_PSRenderer::FindPSFontGlyph(CFX_FaceCache* pFaceCache, CFX_Font* pFont, const FXTEXT_CHARPOS& charpos,
                                     int& ps_fontnum, int &ps_glyphindex)
{
    for (int i = 0; i < (int)m_PSFontList.GetSize(); i ++) {
        CPSFont* pPSFont = m_PSFontList[i];
        for (int j = 0; j < pPSFont->m_nGlyphs; j ++)
            if (pPSFont->m_Glyphs[j].m_pFont == pFont && pPSFont->m_Glyphs[j].m_GlyphIndex == charpos.m_GlyphIndex) {
                if ((!pPSFont->m_Glyphs[j].m_bGlyphAdjust && !charpos.m_bGlyphAdjust) ||
                        (pPSFont->m_Glyphs[j].m_bGlyphAdjust && charpos.m_bGlyphAdjust &&
                         (FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[0] - charpos.m_AdjustMatrix[0]) < 0.01 &&
                          FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[1] - charpos.m_AdjustMatrix[1]) < 0.01 &&
                          FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[2] - charpos.m_AdjustMatrix[2]) < 0.01 &&
                          FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[3] - charpos.m_AdjustMatrix[3]) < 0.01))) {
                    ps_fontnum = i;
                    ps_glyphindex = j;
                    return;
                }
            }
    }
    if (m_PSFontList.GetSize() == 0 || m_PSFontList[m_PSFontList.GetSize() - 1]->m_nGlyphs == 256) {
        CPSFont* pPSFont = new CPSFont;
        pPSFont->m_nGlyphs = 0;
        m_PSFontList.Add(pPSFont);
        CFX_ByteTextBuf buf;
        buf << FX_BSTRC("8 dict begin/FontType 3 def/FontMatrix[1 0 0 1 0 0]def\n"
                        "/FontBBox[0 0 0 0]def/Encoding 256 array def 0 1 255{Encoding exch/.notdef put}for\n"
                        "/CharProcs 1 dict def CharProcs begin/.notdef {} def end\n"
                        "/BuildGlyph{1 0 -10 -10 10 10 setcachedevice exch/CharProcs get exch 2 copy known not{pop/.notdef}if get exec}bind def\n"
                        "/BuildChar{1 index/Encoding get exch get 1 index/BuildGlyph get exec}bind def\n"
                        "currentdict end\n");
        buf << FX_BSTRC("/X") << m_PSFontList.GetSize() - 1 << FX_BSTRC(" exch definefont pop\n");
        m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
        buf.Clear();
    }
    ps_fontnum = m_PSFontList.GetSize() - 1;
    CPSFont* pPSFont = m_PSFontList[ps_fontnum];
    ps_glyphindex = pPSFont->m_nGlyphs;
    pPSFont->m_Glyphs[ps_glyphindex].m_GlyphIndex = charpos.m_GlyphIndex;
    pPSFont->m_Glyphs[ps_glyphindex].m_pFont = pFont;
    pPSFont->m_Glyphs[ps_glyphindex].m_bGlyphAdjust = charpos.m_bGlyphAdjust;
    if (charpos.m_bGlyphAdjust) {
        pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[0] = charpos.m_AdjustMatrix[0];
        pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[1] = charpos.m_AdjustMatrix[1];
        pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[2] = charpos.m_AdjustMatrix[2];
        pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[3] = charpos.m_AdjustMatrix[3];
    }
    pPSFont->m_nGlyphs ++;
    CFX_AffineMatrix matrix;
    if (charpos.m_bGlyphAdjust)
        matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1],
                   charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0);
    matrix.Concat(1.0f, 0, 0, 1.0f, 0, 0);
    const CFX_PathData* pPathData = pFaceCache->LoadGlyphPath(pFont, charpos.m_GlyphIndex, charpos.m_FontCharWidth);
    if (pPathData == NULL) {
        return;
    }
    CFX_PathData TransformedPath(*pPathData);
    if (charpos.m_bGlyphAdjust) {
        TransformedPath.Transform(&matrix);
    }
    CFX_ByteTextBuf buf;
    buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff/CharProcs get begin/")
        << ps_glyphindex << FX_BSTRC("{");
    buf << FX_BSTRC("n ");
    for (int p = 0; p < TransformedPath.GetPointCount(); p ++) {
        FX_FLOAT x = TransformedPath.GetPointX(p), y = TransformedPath.GetPointY(p);
        switch (TransformedPath.GetFlag(p) & FXPT_TYPE) {
            case FXPT_MOVETO: {
                    buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" m\n");
                    break;
                }
            case FXPT_LINETO: {
                    buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" l\n");
                    break;
                }
            case FXPT_BEZIERTO: {
                    buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" ")
                        << TransformedPath.GetPointX(p + 1) << FX_BSTRC(" ")
                        << TransformedPath.GetPointY(p + 1) << FX_BSTRC(" ")
                        << TransformedPath.GetPointX(p + 2) << FX_BSTRC(" ")
                        << TransformedPath.GetPointY(p + 2) << FX_BSTRC(" c\n");
                    p += 2;
                    break;
                }
        }
    }
    buf << FX_BSTRC("f");
    buf << FX_BSTRC("}bind def end\n");
    buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff/Encoding get ") << ps_glyphindex
        << FX_BSTRC("/") << ps_glyphindex << FX_BSTRC(" put\n");
    m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
}

FX_BOOL CFX_PSRenderer::DrawDIBits(const CFX_DIBSource* pSource, FX_DWORD color,
                                   const CFX_AffineMatrix* pMatrix, FX_DWORD flags,
                                   int alpha_flag, void* pIccTransform)
{
    StartRendering();
    if ((pMatrix->a == 0 && pMatrix->b == 0) || (pMatrix->c == 0 && pMatrix->d == 0)) {
        return TRUE;
    }
    if (pSource->HasAlpha()) {
        return FALSE;
    }
    int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(color) : FXARGB_A(color);
    if (pSource->IsAlphaMask() && (alpha < 255 || pSource->GetBPP() != 1)) {
        return FALSE;
    }
    OUTPUT_PS("q\n");
    CFX_ByteTextBuf buf;
    buf << FX_BSTRC("[") << pMatrix->a << FX_BSTRC(" ") << pMatrix->b << FX_BSTRC(" ") <<
        pMatrix->c << FX_BSTRC(" ") << pMatrix->d << FX_BSTRC(" ") << pMatrix->e <<
        FX_BSTRC(" ") << pMatrix->f << FX_BSTRC("]cm ");
    int width = pSource->GetWidth();
    int height = pSource->GetHeight();
    buf << width << FX_BSTRC(" ") << height;
    if (pSource->GetBPP() == 1 && pSource->GetPalette() == NULL) {
        int pitch = (width + 7) / 8;
        FX_DWORD src_size = height * pitch;
        FX_LPBYTE src_buf = FX_Alloc(FX_BYTE, src_size);
        if (!src_buf) {
            return FALSE;
        }
        for (int row = 0; row < height; row ++) {
            FX_LPCBYTE src_scan = pSource->GetScanline(row);
            FXSYS_memcpy32(src_buf + row * pitch, src_scan, pitch);
        }
        FX_LPBYTE output_buf;
        FX_DWORD output_size;
        FaxCompressData(src_buf, width, height, output_buf, output_size);
        if (pSource->IsAlphaMask()) {
            SetColor(color, alpha_flag, pIccTransform);
            m_bColorSet = FALSE;
            buf << FX_BSTRC(" true[");
        } else {
            buf << FX_BSTRC(" 1[");
        }
        buf << width << FX_BSTRC(" 0 0 -") << height << FX_BSTRC(" 0 ") << height <<
            FX_BSTRC("]currentfile/ASCII85Decode filter ");
        if (output_buf != src_buf)
            buf << FX_BSTRC("<</K -1/EndOfBlock false/Columns ") << width << FX_BSTRC("/Rows ") << height <<
                FX_BSTRC(">>/CCITTFaxDecode filter ");
        if (pSource->IsAlphaMask()) {
            buf << FX_BSTRC("iM\n");
        } else {
            buf << FX_BSTRC("false 1 colorimage\n");
        }
        m_pOutput->OutputPS((FX_LPCSTR)buf.GetBuffer(), buf.GetSize());
        WritePSBinary(output_buf, output_size);
        FX_Free(output_buf);
    } else {
        CFX_DIBSource* pConverted = (CFX_DIBSource*)pSource;
        if (pIccTransform) {
            FXDIB_Format format = m_bCmykOutput ? FXDIB_Cmyk : FXDIB_Rgb;
            pConverted = pSource->CloneConvert(format, NULL, pIccTransform);
        } else {
            switch (pSource->GetFormat()) {
                case FXDIB_1bppRgb:
                case FXDIB_Rgb32:
                    pConverted = pSource->CloneConvert(FXDIB_Rgb);
                    break;
                case FXDIB_8bppRgb:
                    if (pSource->GetPalette() != NULL) {
                        pConverted = pSource->CloneConvert(FXDIB_Rgb);
                    }
                    break;
                case FXDIB_1bppCmyk:
                    pConverted = pSource->CloneConvert(FXDIB_Cmyk);
                    break;
                case FXDIB_8bppCmyk:
                    if (pSource->GetPalette() != NULL) {
                        pConverted = pSource->CloneConvert(FXDIB_Cmyk);
                    }
                    break;
                default:
                    break;
            }
        }
        if (pConverted == NULL) {
            OUTPUT_PS("\nQ\n");
            return FALSE;
        }
        int Bpp = pConverted->GetBPP() / 8;
        FX_LPBYTE output_buf = NULL;
        FX_STRSIZE output_size = 0;
        FX_LPCSTR filter = NULL;
        if (flags & FXRENDER_IMAGE_LOSSY) {
            CCodec_ModuleMgr* pEncoders = CFX_GEModule::Get()->GetCodecModule();
            if (pEncoders && pEncoders->GetJpegModule()->Encode(pConverted, output_buf, output_size)) {
                filter = "/DCTDecode filter ";
            }
        }
        if (filter == NULL) {
//.........这里部分代码省略.........

DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
                                               FPDF_CLIPPATH clipPath) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return;

  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
  CPDF_Object* pContentObj =
      pPageDic ? pPageDic->GetObjectFor("Contents") : nullptr;
  if (!pContentObj)
    pContentObj = pPageDic ? pPageDic->GetArrayFor("Contents") : nullptr;
  if (!pContentObj)
    return;

  CFX_ByteTextBuf strClip;
  CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
  uint32_t i;
  for (i = 0; i < pClipPath->GetPathCount(); i++) {
    CPDF_Path path = pClipPath->GetPath(i);
    int iClipType = pClipPath->GetClipType(i);
    if (path.GetPoints().empty()) {
      // Empty clipping (totally clipped out)
      strClip << "0 0 m W n ";
    } else {
      OutputPath(strClip, path);
      if (iClipType == FXFILL_WINDING)
        strClip << "W n\n";
      else
        strClip << "W* n\n";
    }
  }
  CPDF_Document* pDoc = pPage->m_pDocument;
  if (!pDoc)
    return;

  CPDF_Stream* pStream = pDoc->NewIndirect<CPDF_Stream>(
      nullptr, 0,
      pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool()));
  pStream->SetData(strClip.GetBuffer(), strClip.GetSize());

  CPDF_Array* pArray = ToArray(pContentObj);
  if (pArray) {
    pArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum());
    return;
  }
  CPDF_Reference* pReference = ToReference(pContentObj);
  if (!pReference)
    return;

  CPDF_Object* pDirectObj = pReference->GetDirect();
  if (!pDirectObj)
    return;

  CPDF_Array* pObjArray = pDirectObj->AsArray();
  if (pObjArray) {
    pObjArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum());
    return;
  }
  if (pDirectObj->IsStream()) {
    CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>();
    pContentArray->AddNew<CPDF_Reference>(pDoc, pStream->GetObjNum());
    pContentArray->AddNew<CPDF_Reference>(pDoc, pDirectObj->GetObjNum());
    pPageDic->SetNewFor<CPDF_Reference>("Contents", pDoc,
                                        pContentArray->GetObjNum());
  }
}