C++ CFX_AffineMatrix::Concat方法代码示例

static void nativeSetTransformAndClip(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
        jlong transformPtr, jint clipLeft, jint clipTop, jint clipRight, jint clipBottom) {
    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);

    CPDF_Page* page = (CPDF_Page*) FPDF_LoadPage(document, pageIndex);
    if (!page) {
        jniThrowException(env, "java/lang/IllegalStateException",
                "cannot open page");
        return;
    }

    double width = 0;
    double height = 0;

    const int result = FPDF_GetPageSizeByIndex(document, pageIndex, &width, &height);
    if (!result) {
        jniThrowException(env, "java/lang/IllegalStateException",
                    "cannot get page size");
        return;
    }

    CFX_AffineMatrix matrix;

    SkMatrix* skTransform = reinterpret_cast<SkMatrix*>(transformPtr);

    SkScalar transformValues[6];
    if (!skTransform->asAffine(transformValues)) {
        jniThrowException(env, "java/lang/IllegalArgumentException",
                "transform matrix has perspective. Only affine matrices are allowed.");
        return;
    }

    // PDF's coordinate system origin is left-bottom while in graphics it
    // is the top-left. So, translate the PDF coordinates to ours.
    matrix.Set(1, 0, 0, -1, 0, page->GetPageHeight());

    // Apply the transformation what was created in our coordinates.
    matrix.Concat(transformValues[SkMatrix::kAScaleX], transformValues[SkMatrix::kASkewY],
            transformValues[SkMatrix::kASkewX], transformValues[SkMatrix::kAScaleY],
            transformValues[SkMatrix::kATransX], transformValues[SkMatrix::kATransY]);

    // Translate the result back to PDF coordinates.
    matrix.Concat(1, 0, 0, -1, 0, page->GetPageHeight());

    FS_MATRIX transform = {matrix.a, matrix.b, matrix.c, matrix.d, matrix.e, matrix.f};
    FS_RECTF clip = {(float) clipLeft, (float) clipTop, (float) clipRight, (float) clipBottom};

    FPDFPage_TransFormWithClip(page, &transform, &clip);

    FPDF_ClosePage(page);
}

void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice,
                                   CFX_AffineMatrix* pMatrix,
                                   CPDF_Page* pPage,
                                   CPDF_Annot::AppearanceMode mode,
                                   const CPDF_RenderOptions* pOptions) {
  if (m_pWidgetDict->GetInteger("F") & ANNOTFLAG_HIDDEN) {
    return;
  }
  CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode);
  if (pStream == NULL) {
    return;
  }
  CFX_FloatRect form_bbox = pStream->GetDict()->GetRect("BBox");
  CFX_AffineMatrix form_matrix = pStream->GetDict()->GetMatrix("Matrix");
  form_matrix.TransformRect(form_bbox);
  CFX_FloatRect arect = m_pWidgetDict->GetRect("Rect");
  CFX_AffineMatrix matrix;
  matrix.MatchRect(arect, form_bbox);
  matrix.Concat(*pMatrix);
  CPDF_Form form(m_pField->m_pForm->m_pDocument,
                 m_pField->m_pForm->m_pFormDict->GetDict("DR"), pStream);
  form.ParseContent(NULL, NULL, NULL, NULL);
  CPDF_RenderContext context;
  context.Create(pPage);
  context.DrawObjectList(pDevice, &form, &matrix, pOptions);
}

FX_BOOL CPDF_RenderStatus::ProcessForm(CPDF_FormObject* pFormObj,
                                       const CFX_AffineMatrix* pObj2Device) {
  CPDF_Dictionary* pOC =
      pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("OC"));
  if (pOC && m_Options.m_pOCContext &&
      !m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
    return TRUE;
  }
  CFX_AffineMatrix matrix = pFormObj->m_FormMatrix;
  matrix.Concat(*pObj2Device);
  CPDF_Dictionary* pResources = NULL;
  if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
    pResources = pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
  }
  CPDF_RenderStatus status;
  status.Initialize(m_pContext, m_pDevice, NULL, m_pStopObj, this, pFormObj,
                    &m_Options, m_Transparency, m_bDropObjects, pResources,
                    FALSE);
  status.m_curBlend = m_curBlend;
  m_pDevice->SaveState();
  status.RenderObjectList(pFormObj->m_pForm, &matrix);
  m_bStopped = status.m_bStopped;
  m_pDevice->RestoreState();
  return TRUE;
}

void CPDF_RenderStatus::DrawObjWithBackground(
    const CPDF_PageObject* pObj,
    const CFX_AffineMatrix* pObj2Device) {
  FX_RECT rect;
  if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
    return;
  }
  int res = 300;
  if (pObj->m_Type == PDFPAGE_IMAGE &&
      m_pDevice->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
    res = 0;
  }
  CPDF_ScaledRenderBuffer buffer;
  if (!buffer.Initialize(m_pContext, m_pDevice, &rect, pObj, &m_Options, res)) {
    return;
  }
  CFX_AffineMatrix matrix = *pObj2Device;
  matrix.Concat(*buffer.GetMatrix());
  GetScaledMatrix(matrix);
  CPDF_Dictionary* pFormResource = NULL;
  if (pObj->m_Type == PDFPAGE_FORM) {
    CPDF_FormObject* pFormObj = (CPDF_FormObject*)pObj;
    if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
      pFormResource =
          pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
    }
  }
  CPDF_RenderStatus status;
  status.Initialize(m_pContext, buffer.GetDevice(), buffer.GetMatrix(), NULL,
                    NULL, NULL, &m_Options, m_Transparency, m_bDropObjects,
                    pFormResource);
  status.RenderSingleObject(pObj, &matrix);
  buffer.OutputToDevice();
}

void CPDF_RenderStatus::DrawShadingPattern(CPDF_ShadingPattern* pattern,
                                           CPDF_PageObject* pPageObj,
                                           const CFX_AffineMatrix* pObj2Device,
                                           FX_BOOL bStroke) {
  if (!pattern->Load()) {
    return;
  }
  m_pDevice->SaveState();
  if (pPageObj->m_Type == PDFPAGE_PATH) {
    if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
      m_pDevice->RestoreState();
      return;
    }
  } else if (pPageObj->m_Type == PDFPAGE_IMAGE) {
    FX_RECT rect = pPageObj->GetBBox(pObj2Device);
    m_pDevice->SetClip_Rect(&rect);
  } else {
    return;
  }
  FX_RECT rect;
  if (GetObjectClippedRect(pPageObj, pObj2Device, FALSE, rect)) {
    m_pDevice->RestoreState();
    return;
  }
  CFX_AffineMatrix matrix = pattern->m_Pattern2Form;
  matrix.Concat(*pObj2Device);
  GetScaledMatrix(matrix);
  int alpha = pPageObj->m_GeneralState.GetAlpha(bStroke);
  DrawShading(pattern, &matrix, rect, alpha,
              m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
  m_pDevice->RestoreState();
}

void CPDF_RenderStatus::DrawTextPathWithPattern(
    const CPDF_TextObject* textobj,
    const CFX_AffineMatrix* pObj2Device,
    CPDF_Font* pFont,
    FX_FLOAT font_size,
    const CFX_AffineMatrix* pTextMatrix,
    FX_BOOL bFill,
    FX_BOOL bStroke) {
  if (!bStroke) {
    CPDF_PathObject path;
    CPDF_TextObject* pCopy = new CPDF_TextObject;
    pCopy->Copy(textobj);
    path.m_bStroke = FALSE;
    path.m_FillType = FXFILL_WINDING;
    path.m_ClipPath.AppendTexts(&pCopy, 1);
    path.m_ColorState = textobj->m_ColorState;
    path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom,
                                  textobj->m_Right, textobj->m_Top);
    path.m_Left = textobj->m_Left;
    path.m_Bottom = textobj->m_Bottom;
    path.m_Right = textobj->m_Right;
    path.m_Top = textobj->m_Top;
    RenderSingleObject(&path, pObj2Device);
    return;
  }
  CFX_FontCache* pCache;
  if (pFont->m_pDocument) {
    pCache = pFont->m_pDocument->GetRenderData()->GetFontCache();
  } else {
    pCache = CFX_GEModule::Get()->GetFontCache();
  }
  CFX_FaceCache* pFaceCache = pCache->GetCachedFace(&pFont->m_Font);
  FX_FONTCACHE_DEFINE(pCache, &pFont->m_Font);
  CPDF_CharPosList CharPosList;
  CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes,
                   textobj->m_pCharPos, pFont, font_size);
  for (FX_DWORD i = 0; i < CharPosList.m_nChars; i++) {
    FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i];
    const CFX_PathData* pPath = pFaceCache->LoadGlyphPath(
        &pFont->m_Font, charpos.m_GlyphIndex, charpos.m_FontCharWidth);
    if (pPath == NULL) {
      continue;
    }
    CPDF_PathObject path;
    path.m_GraphState = textobj->m_GraphState;
    path.m_ColorState = textobj->m_ColorState;
    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(font_size, 0, 0, font_size, charpos.m_OriginX,
                  charpos.m_OriginY);
    path.m_Path.New()->Append(pPath, &matrix);
    path.m_Matrix = *pTextMatrix;
    path.m_bStroke = bStroke;
    path.m_FillType = bFill ? FXFILL_WINDING : 0;
    path.CalcBoundingBox();
    ProcessPath(&path, pObj2Device);
  }
}

void CPDF_ReflowedPage::GetDisplayMatrix(CFX_AffineMatrix& matrix, FX_INT32 xPos, FX_INT32 yPos, FX_INT32 xSize, FX_INT32 ySize, FX_INT32 iRotate, const CFX_AffineMatrix* pPageMatrix)
{
    CFX_AffineMatrix display_matrix;
    if(m_PageHeight == 0) {
        matrix.Set(1, 0, 0, -1, 0, 0);
        return;
    }
    FX_INT32 x0, y0, x1, y1, x2, y2;
    iRotate %= 4;
    switch (iRotate) {
        case 0:
            x0 = xPos;
            y0 = yPos;
            x1 = xPos;
            y1 = yPos + ySize;
            x2 = xPos + xSize;
            y2 = yPos;
            break;
        case 3:
            x0 = xPos;
            y0 = ySize + yPos;
            x1 =  xPos + xSize;
            y1 = yPos + ySize;
            x2 = xPos;
            y2 = yPos;
            break;
        case 2:
            x0 = xSize + xPos;
            y0 = ySize + yPos;
            x1 = xSize + xPos ;
            y1 = yPos;
            x2 = xPos;
            y2 =  ySize + yPos;
            break;
        case 1:
            x0 = xPos + xSize;
            y0 = yPos;
            x1 = xPos;
            y1 = yPos;
            x2 = xPos + xSize;
            y2 = yPos + ySize;
            break;
    }
    display_matrix.Set(FXSYS_Div((FX_FLOAT)(x2 - x0), m_PageWidth),
                       FXSYS_Div((FX_FLOAT)(y2 - y0), m_PageWidth),
                       FXSYS_Div((FX_FLOAT)(x1 - x0), m_PageHeight),
                       FXSYS_Div((FX_FLOAT)(y1 - y0), m_PageHeight),
                       (FX_FLOAT)(x0), (FX_FLOAT)(y0));
    matrix.Set(1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f);
    matrix.Concat(display_matrix);
    return;
}

void CPDF_Page::GetDisplayMatrix(CFX_AffineMatrix& matrix, int xPos, int yPos,
                                 int xSize, int ySize, int iRotate) const
{
    if (m_PageWidth == 0 || m_PageHeight == 0) {
        return;
    }
    CFX_AffineMatrix display_matrix;
    int x0, y0, x1, y1, x2, y2;
    iRotate %= 4;
    switch (iRotate) {
    case 0:
        x0 = xPos;
        y0 = yPos + ySize;
        x1 = xPos;
        y1 = yPos;
        x2 = xPos + xSize;
        y2 = yPos + ySize;
        break;
    case 1:
        x0 = xPos;
        y0 = yPos;
        x1 = xPos + xSize;
        y1 = yPos;
        x2 = xPos;
        y2 = yPos + ySize;
        break;
    case 2:
        x0 = xPos + xSize;
        y0 = yPos;
        x1 = xPos + xSize;
        y1 = yPos + ySize;
        x2 = xPos;
        y2 = yPos;
        break;
    case 3:
        x0 = xPos + xSize;
        y0 = yPos + ySize;
        x1 = xPos;
        y1 = yPos + ySize;
        x2 = xPos + xSize;
        y2 = yPos;
        break;
    }
    display_matrix.Set(FXSYS_Div((FX_FLOAT)(x2 - x0), m_PageWidth),
                       FXSYS_Div((FX_FLOAT)(y2 - y0), m_PageWidth),
                       FXSYS_Div((FX_FLOAT)(x1 - x0), m_PageHeight),
                       FXSYS_Div((FX_FLOAT)(y1 - y0), m_PageHeight),
                       (FX_FLOAT)x0, (FX_FLOAT)y0);
    matrix = m_PageMatrix;
    matrix.Concat(display_matrix);
}

FX_BOOL CPDF_RenderStatus::ProcessShading(CPDF_ShadingObject* pShadingObj,
                                          const CFX_AffineMatrix* pObj2Device) {
  FX_RECT rect = pShadingObj->GetBBox(pObj2Device);
  FX_RECT clip_box = m_pDevice->GetClipBox();
  rect.Intersect(clip_box);
  if (rect.IsEmpty()) {
    return TRUE;
  }
  CFX_AffineMatrix matrix = pShadingObj->m_Matrix;
  matrix.Concat(*pObj2Device);
  DrawShading(pShadingObj->m_pShading, &matrix, rect,
              pShadingObj->m_GeneralState.GetAlpha(FALSE),
              m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
  return TRUE;
}

void CPDF_StreamContentParser::EndInlineImage()
{
    CFX_AffineMatrix ImageMatrix;
    ImageMatrix.Copy(m_pCurStates->m_CTM);
    ImageMatrix.Concat(m_mtContentToUser);
    m_LastImageData.CopyData(m_ImageSrcBuf.GetBuffer(), m_ImageSrcBuf.GetSize());
    CPDF_Stream* pStream = CPDF_Stream::Create(m_ImageSrcBuf.GetBuffer(), m_ImageSrcBuf.GetSize(),
                           m_pLastCloneImageDict);
    m_ImageSrcBuf.DetachBuffer();
    m_pLastCloneImageDict = NULL;
    CPDF_InlineImages* pImages = FX_NEW CPDF_InlineImages;
    pImages->m_pStream = pStream;
    SetGraphicStates(pImages, !m_pLastCloneImageDict->KeyExist(FX_BSTRC("ColorSpace")), FALSE, FALSE);
    pImages->AddMatrix(ImageMatrix);
    m_pObjectList->m_ObjectList.AddTail(pImages);
    m_WordState = 0;
}

void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice,
                                const CPDF_PageObject* pStopObj,
                                const CPDF_RenderOptions* pOptions,
                                const CFX_AffineMatrix* pLastMatrix) {
  int count = m_ContentList.GetSize();
  for (int j = 0; j < count; j++) {
    pDevice->SaveState();
    _PDF_RenderItem* pItem = m_ContentList.GetDataPtr(j);
    if (pLastMatrix) {
      CFX_AffineMatrix FinalMatrix = pItem->m_Matrix;
      FinalMatrix.Concat(*pLastMatrix);
      CPDF_RenderStatus status;
      status.Initialize(this, pDevice, pLastMatrix, pStopObj, NULL, NULL,
                        pOptions, pItem->m_pObjectList->m_Transparency, FALSE,
                        NULL);
      status.RenderObjectList(pItem->m_pObjectList, &FinalMatrix);
      if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
        m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
      }
      if (status.m_bStopped) {
        pDevice->RestoreState();
        break;
      }
    } else {
      CPDF_RenderStatus status;
      status.Initialize(this, pDevice, NULL, pStopObj, NULL, NULL, pOptions,
                        pItem->m_pObjectList->m_Transparency, FALSE, NULL);
      status.RenderObjectList(pItem->m_pObjectList, &pItem->m_Matrix);
      if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
        m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
      }
      if (status.m_bStopped) {
        pDevice->RestoreState();
        break;
      }
    }
    pDevice->RestoreState();
  }
}

static void renderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int destLeft, int destTop,
        int destRight, int destBottom, SkMatrix* transform, int flags) {
    // Note: this code ignores the currently unused RENDER_NO_NATIVETEXT,
    // FPDF_RENDER_LIMITEDIMAGECACHE, FPDF_RENDER_FORCEHALFTONE, FPDF_GRAYSCALE,
    // and FPDF_ANNOT flags. To add support for that refer to FPDF_RenderPage_Retail
    // in fpdfview.cpp

    CRenderContext* pContext = FX_NEW CRenderContext;

    CPDF_Page* pPage = (CPDF_Page*) page;
    pPage->SetPrivateData((void*) 1, pContext, DropContext);

    CFX_FxgeDevice* fxgeDevice = FX_NEW CFX_FxgeDevice;
    pContext->m_pDevice = fxgeDevice;

    // Reverse the bytes (last argument TRUE) since the Android
    // format is ARGB while the renderer uses BGRA internally.
    fxgeDevice->Attach((CFX_DIBitmap*) bitmap, 0, TRUE);

    CPDF_RenderOptions* renderOptions = pContext->m_pOptions;

    if (!renderOptions) {
        renderOptions = FX_NEW CPDF_RenderOptions;
        pContext->m_pOptions = renderOptions;
    }

    if (flags & FPDF_LCD_TEXT) {
        renderOptions->m_Flags |= RENDER_CLEARTYPE;
    } else {
        renderOptions->m_Flags &= ~RENDER_CLEARTYPE;
    }

    const CPDF_OCContext::UsageType usage = (flags & FPDF_PRINTING)
            ? CPDF_OCContext::Print : CPDF_OCContext::View;

    renderOptions->m_AddFlags = flags >> 8;
    renderOptions->m_pOCContext = new CPDF_OCContext(pPage->m_pDocument, usage);

    fxgeDevice->SaveState();

    FX_RECT clip;
    clip.left = destLeft;
    clip.right = destRight;
    clip.top = destTop;
    clip.bottom = destBottom;
    fxgeDevice->SetClip_Rect(&clip);

    CPDF_RenderContext* pageContext = FX_NEW CPDF_RenderContext;
    pContext->m_pContext = pageContext;
    pageContext->Create(pPage);

    CFX_AffineMatrix matrix;
    if (!transform) {
        pPage->GetDisplayMatrix(matrix, destLeft, destTop, destRight - destLeft,
                destBottom - destTop, 0);
    } else {
        // PDF's coordinate system origin is left-bottom while
        // in graphics it is the top-left, so remap the origin.
        matrix.Set(1, 0, 0, -1, 0, pPage->GetPageHeight());

        SkScalar transformValues[6];
        transform->asAffine(transformValues);

        matrix.Concat(transformValues[SkMatrix::kAScaleX], transformValues[SkMatrix::kASkewY],
                transformValues[SkMatrix::kASkewX], transformValues[SkMatrix::kAScaleY],
                transformValues[SkMatrix::kATransX], transformValues[SkMatrix::kATransY]);
    }
    pageContext->AppendObjectList(pPage, &matrix);

    pContext->m_pRenderer = FX_NEW CPDF_ProgressiveRenderer;
    pContext->m_pRenderer->Start(pageContext, fxgeDevice, renderOptions, NULL);

    fxgeDevice->RestoreState();

    pPage->RemovePrivateData((void*) 1);

    delete pContext;
}

FX_BOOL CPDF_RenderStatus::ProcessType3Text(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device)
{
    CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->GetType3Font();
    for (int j = 0; j < m_Type3FontCache.GetSize(); j++)
        if ((CPDF_Type3Font*)m_Type3FontCache.GetAt(j) == pType3Font) {
            return TRUE;
        }
    CFX_Matrix dCTM = m_pDevice->GetCTM();
    FX_FLOAT sa = FXSYS_fabs(dCTM.a);
    FX_FLOAT sd = FXSYS_fabs(dCTM.d);
    CFX_AffineMatrix text_matrix;
    textobj->GetTextMatrix(&text_matrix);
    CFX_AffineMatrix char_matrix = pType3Font->GetFontMatrix();
    FX_FLOAT font_size = textobj->m_TextState.GetFontSize();
    char_matrix.Scale(font_size, font_size);
    FX_ARGB fill_argb = GetFillArgb(textobj, TRUE);
    int fill_alpha = FXARGB_A(fill_argb);
    int device_class = m_pDevice->GetDeviceClass();
    FXTEXT_GLYPHPOS* pGlyphAndPos = NULL;
    if (device_class == FXDC_DISPLAY) {
        pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, textobj->m_nChars);
    } else if (fill_alpha < 255) {
        return FALSE;
    }
    CPDF_RefType3Cache refTypeCache(pType3Font);
    FX_DWORD *pChars = textobj->m_pCharCodes;
    if (textobj->m_nChars == 1) {
        pChars = (FX_DWORD*)(&textobj->m_pCharCodes);
    }
    for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
        FX_DWORD charcode = pChars[iChar];
        if (charcode == (FX_DWORD) - 1) {
            continue;
        }
        CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode);
        if (pType3Char == NULL) {
            continue;
        }
        CFX_AffineMatrix matrix = char_matrix;
        matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0;
        matrix.Concat(text_matrix);
        matrix.Concat(*pObj2Device);
        if (!pType3Char->LoadBitmap(m_pContext)) {
            if (pGlyphAndPos) {
                for (int i = 0; i < iChar; i ++) {
                    FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[i];
                    if (glyph.m_pGlyph == NULL) {
                        continue;
                    }
                    m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap,
                                          glyph.m_OriginX + glyph.m_pGlyph->m_Left,
                                          glyph.m_OriginY - glyph.m_pGlyph->m_Top, fill_argb);
                }
                FX_Free(pGlyphAndPos);
                pGlyphAndPos = NULL;
            }
            CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE);
            CPDF_RenderOptions Options = m_Options;
            Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA;
            Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE;
            CPDF_Dictionary* pFormResource = NULL;
            if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) {
                pFormResource = pType3Char->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
            }
            if (fill_alpha == 255) {
                CPDF_RenderStatus status;
                status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &Options,
                                  pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
                status.m_Type3FontCache.Append(m_Type3FontCache);
                status.m_Type3FontCache.Add(pType3Font);
                m_pDevice->SaveState();
                status.RenderObjectList(pType3Char->m_pForm, &matrix);
                m_pDevice->RestoreState();
            } else {
                CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox();
                rect_f.Transform(&matrix);
                FX_RECT rect = rect_f.GetOutterRect();
                CFX_FxgeDevice bitmap_device;
                if (!bitmap_device.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_Argb)) {
                    return TRUE;
                }
                bitmap_device.GetBitmap()->Clear(0);
                CPDF_RenderStatus status;
                status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, this, pStates, &Options,
                                  pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
                status.m_Type3FontCache.Append(m_Type3FontCache);
                status.m_Type3FontCache.Add(pType3Font);
                matrix.TranslateI(-rect.left, -rect.top);
                matrix.Scale(sa, sd);
                status.RenderObjectList(pType3Char->m_pForm, &matrix);
                m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top);
            }
            delete pStates;
        } else if (pType3Char->m_pBitmap) {
            if (device_class == FXDC_DISPLAY) {
                CPDF_Type3Cache* pCache = GetCachedType3(pType3Font);
                refTypeCache.m_dwCount++;
                CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd);
                if (pBitmap == NULL) {
                    continue;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	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"));
				CFX_AffineMatrix t = *(CFX_AffineMatrix*)matrix;
				m.Concat(t);
				pDict->SetAtMatrix(FX_BSTRC("Matrix"), m);
			}
		}
	}

	return TRUE;
}

void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
                                    CFX_AffineMatrix* pMatrix,
                                    FX_RECT& clip_rect,
                                    int alpha,
                                    FX_BOOL bAlphaMode) {
  CPDF_Function** pFuncs = pPattern->m_pFunctions;
  int nFuncs = pPattern->m_nFuncs;
  CPDF_Dictionary* pDict = pPattern->m_pShadingObj->GetDict();
  CPDF_ColorSpace* pColorSpace = pPattern->m_pCS;
  if (pColorSpace == NULL) {
    return;
  }
  FX_ARGB background = 0;
  if (!pPattern->m_bShadingObj &&
      pPattern->m_pShadingObj->GetDict()->KeyExist(FX_BSTRC("Background"))) {
    CPDF_Array* pBackColor =
        pPattern->m_pShadingObj->GetDict()->GetArray(FX_BSTRC("Background"));
    if (pBackColor &&
        pBackColor->GetCount() >= (FX_DWORD)pColorSpace->CountComponents()) {
      CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents());
      for (int i = 0; i < pColorSpace->CountComponents(); i++) {
        comps[i] = pBackColor->GetNumber(i);
      }
      FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
      pColorSpace->GetRGB(comps, R, G, B);
      background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255),
                              (int32_t)(B * 255));
    }
  }
  if (pDict->KeyExist(FX_BSTRC("BBox"))) {
    CFX_FloatRect rect = pDict->GetRect(FX_BSTRC("BBox"));
    rect.Transform(pMatrix);
    clip_rect.Intersect(rect.GetOutterRect());
  }
  CPDF_DeviceBuffer buffer;
  buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150);
  CFX_AffineMatrix FinalMatrix = *pMatrix;
  FinalMatrix.Concat(*buffer.GetMatrix());
  CFX_DIBitmap* pBitmap = buffer.GetBitmap();
  if (pBitmap->GetBuffer() == NULL) {
    return;
  }
  pBitmap->Clear(background);
  int fill_mode = m_Options.m_Flags;
  switch (pPattern->m_ShadingType) {
    case kInvalidShading:
    case kMaxShading:
      return;
    case kFunctionBasedShading:
      DrawFuncShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace,
                      alpha);
      break;
    case kAxialShading:
      DrawAxialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
                       pColorSpace, alpha);
      break;
    case kRadialShading:
      DrawRadialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
                        pColorSpace, alpha);
      break;
    case kFreeFormGouraudTriangleMeshShading: {
      DrawFreeGouraudShading(pBitmap, &FinalMatrix,
                             ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
                             pColorSpace, alpha);
    } break;
    case kLatticeFormGouraudTriangleMeshShading: {
      DrawLatticeGouraudShading(pBitmap, &FinalMatrix,
                                ToStream(pPattern->m_pShadingObj), pFuncs,
                                nFuncs, pColorSpace, alpha);
    } break;
    case kCoonsPatchMeshShading:
    case kTensorProductPatchMeshShading: {
      DrawCoonPatchMeshes(
          pPattern->m_ShadingType == kTensorProductPatchMeshShading, pBitmap,
          &FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
          pColorSpace, fill_mode, alpha);
    } break;
  }
  if (bAlphaMode) {
    pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha);
  }
  if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
    pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
  }
  buffer.OutputToDevice();
}