void CPDF_PageObjectList::Transform(const CFX_Matrix& matrix) {
FX_POSITION pos = m_ObjectList.GetHeadPosition();
while (pos) {
CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
pObj->Transform(matrix);
}
}
DLLEXPORT FPDF_BOOL STDCALL
FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) {
if (!pageObject)
return FALSE;
CPDF_PageObject* pPageObj = reinterpret_cast<CPDF_PageObject*>(pageObject);
int blend_type = pPageObj->m_GeneralState.GetBlendType();
if (blend_type != FXDIB_BLEND_NORMAL)
return TRUE;
CPDF_Dictionary* pSMaskDict =
ToDictionary(pPageObj->m_GeneralState.GetSoftMask());
if (pSMaskDict)
return TRUE;
if (pPageObj->m_GeneralState.GetFillAlpha() != 1.0f)
return TRUE;
if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f) {
return TRUE;
}
if (pPageObj->IsForm()) {
const CPDF_Form* pForm = pPageObj->AsForm()->form();
if (pForm) {
int trans = pForm->m_Transparency;
if ((trans & PDFTRANS_ISOLATED) || (trans & PDFTRANS_GROUP))
return TRUE;
}
}
return FALSE;
}
CPDF_Form* CPDF_Form::Clone() const
{
CPDF_Form* pClone = new CPDF_Form(m_pDocument, m_pPageResources, m_pFormStream, m_pResources);
FX_POSITION pos = m_ObjectList.GetHeadPosition();
while (pos) {
CPDF_PageObject* pObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
pClone->m_ObjectList.AddTail(pObj->Clone());
}
return pClone;
}
DLLEXPORT void STDCALL FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object,
double a, double b, double c, double d, double e, double f)
{
CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_object;
if(pPageObj == NULL)
return;
//PDF_ImageObject* pImageObj = FX_NEW CPDF_ImageObject;
CFX_AffineMatrix matrix((FX_FLOAT)a,(FX_FLOAT)b,(FX_FLOAT)c,(FX_FLOAT)d,(FX_FLOAT)e,(FX_FLOAT)f);
pPageObj->Transform(matrix);
}
DLLEXPORT void STDCALL FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,double a, double b, double c, double d, double e, double f)
{
CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_object;
if(pPageObj == NULL)
return;
CFX_AffineMatrix matrix((FX_FLOAT)a,(FX_FLOAT)b,(FX_FLOAT)c,(FX_FLOAT)d,(FX_FLOAT)e,(FX_FLOAT)f);
//Special treatment to shading object, because the ClipPath for shading object is already transformed.
if(pPageObj->m_Type != PDFPAGE_SHADING)
pPageObj->TransformClipPath(matrix);
pPageObj->TransformGeneralState(matrix);
}
DLLEXPORT void STDCALL FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object,
double a,
double b,
double c,
double d,
double e,
double f) {
CPDF_PageObject* pPageObj = reinterpret_cast<CPDF_PageObject*>(page_object);
if (!pPageObj)
return;
CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d,
(FX_FLOAT)e, (FX_FLOAT)f);
pPageObj->Transform(matrix);
}
bool CPDF_TextPage::IsSameAsPreTextObject(
CPDF_TextObject* pTextObj,
const CPDF_PageObjectList* pObjList,
CPDF_PageObjectList::const_iterator iter) {
int i = 0;
while (i < 5 && iter != pObjList->begin()) {
--iter;
CPDF_PageObject* pOtherObj = iter->get();
if (pOtherObj == pTextObj || !pOtherObj->IsText())
continue;
if (IsSameTextObject(pOtherObj->AsText(), pTextObj))
return true;
++i;
}
return false;
}
CPDF_PageObjects::~CPDF_PageObjects()
{
if (m_pParser) {
delete m_pParser;
}
if (!m_bReleaseMembers) {
return;
}
FX_POSITION pos = m_ObjectList.GetHeadPosition();
while (pos) {
CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
if (!pPageObj) {
continue;
}
pPageObj->Release();
}
}
void CPDF_PageObjects::ClearCacheObjects()
{
m_ParseState = PDF_CONTENT_NOT_PARSED;
if (m_pParser) {
delete m_pParser;
}
m_pParser = NULL;
if (m_bReleaseMembers) {
FX_POSITION pos = m_ObjectList.GetHeadPosition();
while (pos) {
CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_ObjectList.GetNext(pos);
if (!pPageObj) {
continue;
}
pPageObj->Release();
}
}
m_ObjectList.RemoveAll();
}
FPDF_EXPORT void FPDF_CALLCONV
FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
double a,
double b,
double c,
double d,
double e,
double f) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return;
CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e, (float)f);
// Special treatment to shading object, because the ClipPath for shading
// object is already transformed.
if (!pPageObj->IsShading())
pPageObj->TransformClipPath(matrix);
pPageObj->TransformGeneralState(matrix);
}
void CPDF_TextPage::ProcessFormObject(CPDF_FormObject* pFormObj,
const CFX_Matrix& formMatrix) {
const CPDF_PageObjectList* pObjectList =
pFormObj->form()->GetPageObjectList();
if (pObjectList->empty())
return;
CFX_Matrix curFormMatrix = pFormObj->form_matrix() * formMatrix;
for (auto it = pObjectList->begin(); it != pObjectList->end(); ++it) {
CPDF_PageObject* pPageObj = it->get();
if (!pPageObj)
continue;
if (pPageObj->IsText())
ProcessTextObject(pPageObj->AsText(), curFormMatrix, pObjectList, it);
else if (pPageObj->IsForm())
ProcessFormObject(pPageObj->AsForm(), curFormMatrix);
}
}
void CPDF_PageContentGenerator::GenerateContent() {
CFX_ByteTextBuf buf;
CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
CPDF_PageObject* pPageObj = m_pageObjects[i];
if (!pPageObj || !pPageObj->IsImage()) {
continue;
}
ProcessImage(buf, pPageObj->AsImage());
}
CPDF_Object* pContent =
pPageDict ? pPageDict->GetDirectObjectFor("Contents") : nullptr;
if (pContent)
pPageDict->RemoveFor("Contents");
CPDF_Stream* pStream = new CPDF_Stream;
pStream->SetData(buf.GetBuffer(), buf.GetLength());
pPageDict->SetReferenceFor("Contents", m_pDocument,
m_pDocument->AddIndirectObject(pStream));
}
void CPDF_TextPage::ProcessObject() {
if (m_pPage->GetPageObjectList()->empty())
return;
m_TextlineDir = FindTextlineFlowOrientation();
const CPDF_PageObjectList* pObjList = m_pPage->GetPageObjectList();
for (auto it = pObjList->begin(); it != pObjList->end(); ++it) {
CPDF_PageObject* pObj = it->get();
if (!pObj)
continue;
CFX_Matrix matrix;
if (pObj->IsText())
ProcessTextObject(pObj->AsText(), matrix, pObjList, it);
else if (pObj->IsForm())
ProcessFormObject(pObj->AsForm(), matrix);
}
for (const auto& obj : m_LineObj)
ProcessTextObject(obj);
m_LineObj.clear();
CloseTempLine();
}
DLLEXPORT void STDCALL FPDFPage_InsertObject(FPDF_PAGE page,
FPDF_PAGEOBJECT page_obj) {
CPDF_PageObject* pPageObj = reinterpret_cast<CPDF_PageObject*>(page_obj);
if (!pPageObj)
return;
std::unique_ptr<CPDF_PageObject> pPageObjHolder(pPageObj);
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return;
pPage->GetPageObjectList()->push_back(std::move(pPageObjHolder));
switch (pPageObj->GetType()) {
case CPDF_PageObject::TEXT: {
break;
}
case CPDF_PageObject::PATH: {
CPDF_PathObject* pPathObj = pPageObj->AsPath();
pPathObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::IMAGE: {
CPDF_ImageObject* pImageObj = pPageObj->AsImage();
pImageObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::SHADING: {
CPDF_ShadingObject* pShadingObj = pPageObj->AsShading();
pShadingObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::FORM: {
CPDF_FormObject* pFormObj = pPageObj->AsForm();
pFormObj->CalcBoundingBox();
break;
}
default: {
ASSERT(false);
break;
}
}
}
void CPDF_ProgressiveRenderer::Continue(IFX_Pause* pPause) {
while (m_Status == ToBeContinued) {
if (!m_pCurrentLayer) {
if (m_LayerIndex >= m_pContext->CountLayers()) {
m_Status = Done;
return;
}
m_pCurrentLayer = m_pContext->GetLayer(m_LayerIndex);
m_LastObjectRendered =
m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
m_pRenderStatus.reset(new CPDF_RenderStatus());
m_pRenderStatus->Initialize(
m_pContext, m_pDevice, nullptr, nullptr, nullptr, nullptr, m_pOptions,
m_pCurrentLayer->m_pObjectHolder->m_Transparency, FALSE, nullptr);
m_pDevice->SaveState();
m_ClipRect = CFX_FloatRect(m_pDevice->GetClipBox());
CFX_Matrix device2object;
device2object.SetReverse(m_pCurrentLayer->m_Matrix);
device2object.TransformRect(m_ClipRect);
}
CPDF_PageObjectList::iterator iter;
CPDF_PageObjectList::iterator iterEnd =
m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
if (m_LastObjectRendered != iterEnd) {
iter = m_LastObjectRendered;
++iter;
} else {
iter = m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->begin();
}
int nObjsToGo = kStepLimit;
while (iter != iterEnd) {
CPDF_PageObject* pCurObj = iter->get();
if (pCurObj && pCurObj->m_Left <= m_ClipRect.right &&
pCurObj->m_Right >= m_ClipRect.left &&
pCurObj->m_Bottom <= m_ClipRect.top &&
pCurObj->m_Top >= m_ClipRect.bottom) {
if (m_pRenderStatus->ContinueSingleObject(
pCurObj, &m_pCurrentLayer->m_Matrix, pPause)) {
return;
}
if (pCurObj->IsImage() &&
m_pRenderStatus->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
m_pContext->GetPageCache()->CacheOptimization(
m_pRenderStatus->m_Options.m_dwLimitCacheSize);
}
if (pCurObj->IsForm() || pCurObj->IsShading()) {
nObjsToGo = 0;
} else {
--nObjsToGo;
}
}
m_LastObjectRendered = iter;
if (nObjsToGo == 0) {
if (pPause && pPause->NeedToPauseNow())
return;
nObjsToGo = kStepLimit;
}
++iter;
}
if (m_pCurrentLayer->m_pObjectHolder->IsParsed()) {
m_pRenderStatus.reset();
m_pDevice->RestoreState(false);
m_pCurrentLayer = nullptr;
m_LayerIndex++;
if (pPause && pPause->NeedToPauseNow()) {
return;
}
} else {
m_pCurrentLayer->m_pObjectHolder->ContinueParse(pPause);
if (!m_pCurrentLayer->m_pObjectHolder->IsParsed())
return;
}
}
}
CPDF_PageObject* CPDF_PageObject::Clone() const
{
CPDF_PageObject* pObj = Create(m_Type);
pObj->Copy(this);
return pObj;
}