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);
}
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)
return;
CFX_Matrix 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->IsShading())
pPageObj->TransformClipPath(matrix);
pPageObj->TransformGeneralState(matrix);
}
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;
}
}
}