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;
}
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_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_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();
}