CPDF_ContentParser::CPDF_ContentParser(CPDF_Form* pForm,
CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
std::set<const uint8_t*>* parsedSet)
: m_CurrentStage(Stage::kParse),
m_pObjectHolder(pForm),
m_pType3Char(pType3Char) {
ASSERT(pForm);
CFX_Matrix form_matrix = pForm->GetDict()->GetMatrixFor("Matrix");
if (pGraphicStates)
form_matrix.Concat(pGraphicStates->m_CTM);
CPDF_Array* pBBox = pForm->GetDict()->GetArrayFor("BBox");
CFX_FloatRect form_bbox;
CPDF_Path ClipPath;
if (pBBox) {
form_bbox = pBBox->GetRect();
ClipPath.Emplace();
ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
form_bbox.top);
ClipPath.Transform(form_matrix);
if (pParentMatrix)
ClipPath.Transform(*pParentMatrix);
form_bbox = form_matrix.TransformRect(form_bbox);
if (pParentMatrix)
form_bbox = pParentMatrix->TransformRect(form_bbox);
}
CPDF_Dictionary* pResources = pForm->GetDict()->GetDictFor("Resources");
m_pParser = pdfium::MakeUnique<CPDF_StreamContentParser>(
pForm->GetDocument(), pForm->m_pPageResources.Get(),
pForm->m_pResources.Get(), pParentMatrix, pForm, pResources, form_bbox,
pGraphicStates, parsedSet);
m_pParser->GetCurStates()->m_CTM = form_matrix;
m_pParser->GetCurStates()->m_ParentMatrix = form_matrix;
if (ClipPath.HasRef()) {
m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
true);
}
if (pForm->GetTransparency().IsGroup()) {
CPDF_GeneralState* pState = &m_pParser->GetCurStates()->m_GeneralState;
pState->SetBlendType(BlendMode::kNormal);
pState->SetStrokeAlpha(1.0f);
pState->SetFillAlpha(1.0f);
pState->SetSoftMask(nullptr);
}
m_pSingleStream = pdfium::MakeRetain<CPDF_StreamAcc>(pForm->GetStream());
m_pSingleStream->LoadAllDataFiltered();
m_pData.Reset(m_pSingleStream->GetData());
m_Size = m_pSingleStream->GetSize();
}
void CPDF_ContentParser::Start(CPDF_Form* pForm,
CPDF_AllStates* pGraphicStates,
const CFX_Matrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
int level) {
m_pType3Char = pType3Char;
m_pObjectHolder = pForm;
m_bForm = true;
CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrixFor("Matrix");
if (pGraphicStates)
form_matrix.Concat(pGraphicStates->m_CTM);
CPDF_Array* pBBox = pForm->m_pFormDict->GetArrayFor("BBox");
CFX_FloatRect form_bbox;
CPDF_Path ClipPath;
if (pBBox) {
form_bbox = pBBox->GetRect();
ClipPath.Emplace();
ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
form_bbox.top);
ClipPath.Transform(&form_matrix);
if (pParentMatrix)
ClipPath.Transform(pParentMatrix);
form_bbox.Transform(&form_matrix);
if (pParentMatrix)
form_bbox.Transform(pParentMatrix);
}
CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDictFor("Resources");
m_pParser.reset(new CPDF_StreamContentParser(
pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources,
pParentMatrix, pForm, pResources, &form_bbox, pGraphicStates, level));
m_pParser->GetCurStates()->m_CTM = form_matrix;
m_pParser->GetCurStates()->m_ParentMatrix = form_matrix;
if (ClipPath) {
m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
true);
}
if (pForm->m_Transparency & PDFTRANS_GROUP) {
CPDF_GeneralState* pState = &m_pParser->GetCurStates()->m_GeneralState;
pState->SetBlendType(FXDIB_BLEND_NORMAL);
pState->SetStrokeAlpha(1.0f);
pState->SetFillAlpha(1.0f);
pState->SetSoftMask(nullptr);
}
m_nStreams = 0;
m_pSingleStream.reset(new CPDF_StreamAcc);
m_pSingleStream->LoadAllData(pForm->m_pFormStream, false);
m_pData = (uint8_t*)m_pSingleStream->GetData();
m_Size = m_pSingleStream->GetSize();
m_Status = ToBeContinued;
m_InternalStage = STAGE_PARSE;
m_CurrentOffset = 0;
}
void CPDF_ContentParser::Start(CPDF_Form* pForm, CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix,
CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level)
{
m_pType3Char = pType3Char;
m_pObjects = pForm;
m_bForm = TRUE;
CFX_AffineMatrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix"));
if (pGraphicStates) {
form_matrix.Concat(pGraphicStates->m_CTM);
}
CPDF_Array* pBBox = pForm->m_pFormDict->GetArray(FX_BSTRC("BBox"));
CFX_FloatRect form_bbox;
CPDF_Path ClipPath;
if (pBBox) {
form_bbox = pBBox->GetRect();
ClipPath.New();
ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right, form_bbox.top);
ClipPath.Transform(&form_matrix);
if (pParentMatrix) {
ClipPath.Transform(pParentMatrix);
}
form_bbox.Transform(&form_matrix);
}
CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
m_pParser = FX_NEW CPDF_StreamContentParser;
m_pParser->Initialize();
m_pParser->PrepareParse(pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources, pParentMatrix, pForm,
pResources, &form_bbox, pOptions, pGraphicStates, level);
m_pParser->m_pCurStates->m_CTM = form_matrix;
if (ClipPath.NotNull()) {
m_pParser->m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE);
}
if (pForm->m_Transparency & PDFTRANS_GROUP) {
CPDF_GeneralStateData* pData = m_pParser->m_pCurStates->m_GeneralState.GetModify();
pData->m_BlendType = FXDIB_BLEND_NORMAL;
pData->m_StrokeAlpha = 1.0f;
pData->m_FillAlpha = 1.0f;
pData->m_pSoftMask = NULL;
}
m_pStreamFilter = pForm->m_pFormStream->GetStreamFilter();
m_nStreams = 1;
m_Status = ToBeContinued;
m_InternalStage = PAGEPARSE_STAGE_PARSE;
m_CurrentOffset = 0;
}
void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) {
if (!m_Options.m_bSeparateForm) {
CPDF_Dictionary* pResources = pStream->GetDict()->GetDict("Resources");
CFX_Matrix form_matrix = pStream->GetDict()->GetMatrix("Matrix");
form_matrix.Concat(m_pCurStates->m_CTM);
CPDF_Array* pBBox = pStream->GetDict()->GetArray("BBox");
CFX_FloatRect form_bbox;
CPDF_Path ClipPath;
if (pBBox) {
form_bbox = pStream->GetDict()->GetRect("BBox");
ClipPath.New();
ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right,
form_bbox.top);
ClipPath.Transform(&form_matrix);
form_bbox.Transform(&form_matrix);
}
CPDF_StreamContentParser parser(m_pDocument, m_pPageResources, m_pResources,
&m_mtContentToUser, m_pObjectList,
pResources, &form_bbox, &m_Options,
m_pCurStates.get(), m_Level + 1);
parser.m_pCurStates->m_CTM = form_matrix;
if (ClipPath.NotNull()) {
parser.m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
TRUE);
}
CPDF_StreamAcc stream;
stream.LoadAllData(pStream, FALSE);
if (stream.GetSize() == 0) {
return;
}
parser.Parse(stream.GetData(), stream.GetSize(), 0);
return;
}
CPDF_FormObject* pFormObj = new CPDF_FormObject;
pFormObj->m_pForm =
new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources);
pFormObj->m_FormMatrix = m_pCurStates->m_CTM;
pFormObj->m_FormMatrix.Concat(m_mtContentToUser);
CPDF_AllStates status;
status.m_GeneralState = m_pCurStates->m_GeneralState;
status.m_GraphState = m_pCurStates->m_GraphState;
status.m_ColorState = m_pCurStates->m_ColorState;
status.m_TextState = m_pCurStates->m_TextState;
pFormObj->m_pForm->ParseContent(&status, NULL, NULL, &m_Options, m_Level + 1);
if (!m_pObjectList->m_bBackgroundAlphaNeeded &&
pFormObj->m_pForm->m_bBackgroundAlphaNeeded) {
m_pObjectList->m_bBackgroundAlphaNeeded = TRUE;
}
pFormObj->CalcBoundingBox();
SetGraphicStates(pFormObj, TRUE, TRUE, TRUE);
m_pObjectList->m_ObjectList.AddTail(pFormObj);
}
void CPDF_StreamContentParser::AddPathObject(int FillType, FX_BOOL bStroke) {
int PathPointCount = m_PathPointCount, PathClipType = m_PathClipType;
m_PathPointCount = 0;
m_PathClipType = 0;
if (PathPointCount <= 1) {
if (PathPointCount && PathClipType) {
CPDF_Path path;
path.New()->AppendRect(0, 0, 0, 0);
m_pCurStates->m_ClipPath.AppendPath(path, FXFILL_WINDING, TRUE);
}
return;
}
if (PathPointCount &&
m_pPathPoints[PathPointCount - 1].m_Flag == FXPT_MOVETO) {
PathPointCount--;
}
CPDF_Path Path;
CFX_PathData* pPathData = Path.New();
pPathData->SetPointCount(PathPointCount);
FXSYS_memcpy(pPathData->GetPoints(), m_pPathPoints,
sizeof(FX_PATHPOINT) * PathPointCount);
CFX_Matrix matrix = m_pCurStates->m_CTM;
matrix.Concat(m_mtContentToUser);
if (bStroke || FillType) {
CPDF_PathObject* pPathObj = new CPDF_PathObject;
pPathObj->m_bStroke = bStroke;
pPathObj->m_FillType = FillType;
pPathObj->m_Path = Path;
pPathObj->m_Matrix = matrix;
SetGraphicStates(pPathObj, TRUE, FALSE, TRUE);
pPathObj->CalcBoundingBox();
m_pObjectList->m_ObjectList.AddTail(pPathObj);
}
if (PathClipType) {
if (!matrix.IsIdentity()) {
Path.Transform(&matrix);
matrix.SetIdentity();
}
m_pCurStates->m_ClipPath.AppendPath(Path, PathClipType, TRUE);
}
}
