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vtkDataRepresentation.cxx
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vtkDataRepresentation.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataRepresentation.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkDataRepresentation.h"
#include "vtkAlgorithmOutput.h"
#include "vtkAnnotationLayers.h"
#include "vtkAnnotationLink.h"
#include "vtkCommand.h"
#include "vtkConvertSelectionDomain.h"
#include "vtkDataObject.h"
#include "vtkDataSet.h"
#include "vtkDemandDrivenPipeline.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSelection.h"
#include "vtkSelectionNode.h"
#include "vtkSmartPointer.h"
#include "vtkStringArray.h"
#include "vtkTrivialProducer.h"
#include <map>
//---------------------------------------------------------------------------
// vtkDataRepresentation::Internals
//---------------------------------------------------------------------------
class vtkDataRepresentation::Internals
{
public:
// This is a cache of shallow copies of inputs provided for convenience.
// It is a map from (port index, connection index) to (original input data port, shallow copy
// port). NOTE: The original input data port pointer is not reference counted, so it should not be
// assumed to be a valid pointer. It is only used for pointer comparison.
std::map<std::pair<int, int>,
std::pair<vtkAlgorithmOutput*, vtkSmartPointer<vtkTrivialProducer> > >
InputInternal;
// This is a cache of vtkConvertSelectionDomain filters provided for convenience.
// It is a map from (port index, connection index) to convert selection domain filter.
std::map<std::pair<int, int>, vtkSmartPointer<vtkConvertSelectionDomain> > ConvertDomainInternal;
};
//---------------------------------------------------------------------------
// vtkDataRepresentation::Command
//----------------------------------------------------------------------------
class vtkDataRepresentation::Command : public vtkCommand
{
public:
static Command* New() { return new Command(); }
void Execute(vtkObject* caller, unsigned long eventId, void* callData) override
{
if (this->Target)
{
this->Target->ProcessEvents(caller, eventId, callData);
}
}
void SetTarget(vtkDataRepresentation* t) { this->Target = t; }
private:
Command() { this->Target = nullptr; }
vtkDataRepresentation* Target;
};
//----------------------------------------------------------------------------
// vtkDataRepresentation
//----------------------------------------------------------------------------
vtkStandardNewMacro(vtkDataRepresentation);
vtkCxxSetObjectMacro(vtkDataRepresentation, AnnotationLinkInternal, vtkAnnotationLink);
vtkCxxSetObjectMacro(vtkDataRepresentation, SelectionArrayNames, vtkStringArray);
//----------------------------------------------------------------------------
vtkTrivialProducer* vtkDataRepresentation::GetInternalInput(int port, int conn)
{
return this->Implementation->InputInternal[std::pair<int, int>(port, conn)].second;
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::SetInternalInput(int port, int conn, vtkTrivialProducer* producer)
{
this->Implementation->InputInternal[std::pair<int, int>(port, conn)] =
std::pair<vtkAlgorithmOutput*, vtkSmartPointer<vtkTrivialProducer> >(
this->GetInputConnection(port, conn), producer);
}
//----------------------------------------------------------------------------
vtkDataRepresentation::vtkDataRepresentation()
{
this->Implementation = new vtkDataRepresentation::Internals();
// Listen to event indicating that the algorithm is done executing.
// We may need to clear the data object cache after execution.
this->Observer = Command::New();
this->AddObserver(vtkCommand::EndEvent, this->Observer);
this->Selectable = true;
this->SelectionArrayNames = vtkStringArray::New();
this->SelectionType = vtkSelectionNode::INDICES;
this->AnnotationLinkInternal = vtkAnnotationLink::New();
this->SetNumberOfOutputPorts(0);
}
//----------------------------------------------------------------------------
vtkDataRepresentation::~vtkDataRepresentation()
{
delete this->Implementation;
this->Observer->Delete();
this->SetSelectionArrayNames(nullptr);
this->SetAnnotationLinkInternal(nullptr);
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::SetAnnotationLink(vtkAnnotationLink* link)
{
this->SetAnnotationLinkInternal(link);
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::ProcessEvents(
vtkObject* caller, unsigned long eventId, void* vtkNotUsed(callData))
{
// After the algorithm executes, if the release data flag is on,
// clear the input shallow copy cache.
if (caller == this && eventId == vtkCommand::EndEvent)
{
// Release input data if requested.
for (int i = 0; i < this->GetNumberOfInputPorts(); ++i)
{
for (int j = 0; j < this->GetNumberOfInputConnections(i); ++j)
{
vtkInformation* inInfo = this->GetExecutive()->GetInputInformation(i, j);
vtkDataObject* dataObject = inInfo->Get(vtkDataObject::DATA_OBJECT());
if (dataObject &&
(dataObject->GetGlobalReleaseDataFlag() ||
inInfo->Get(vtkDemandDrivenPipeline::RELEASE_DATA())))
{
std::pair<int, int> p(i, j);
this->Implementation->InputInternal.erase(p);
this->Implementation->ConvertDomainInternal.erase(p);
}
}
}
}
}
//----------------------------------------------------------------------------
vtkAlgorithmOutput* vtkDataRepresentation::GetInternalOutputPort(int port, int conn)
{
if (port >= this->GetNumberOfInputPorts() || conn >= this->GetNumberOfInputConnections(port))
{
vtkErrorMacro(
"Port " << port << ", connection " << conn << " is not defined on this representation.");
return nullptr;
}
// The cached shallow copy is out of date when the input data object
// changed, or the shallow copy modified time is less than the
// input modified time.
std::pair<int, int> p(port, conn);
vtkAlgorithmOutput* input = this->GetInputConnection(port, conn);
vtkDataObject* inputDObj = this->GetInputDataObject(port, conn);
if (this->Implementation->InputInternal.find(p) == this->Implementation->InputInternal.end() ||
this->Implementation->InputInternal[p].first != input ||
this->Implementation->InputInternal[p].second->GetMTime() < inputDObj->GetMTime())
{
this->Implementation->InputInternal[p].first = input;
vtkDataObject* copy = inputDObj->NewInstance();
copy->ShallowCopy(inputDObj);
vtkTrivialProducer* tp = vtkTrivialProducer::New();
tp->SetOutput(copy);
copy->Delete();
this->Implementation->InputInternal[p].second = tp;
tp->Delete();
}
return this->Implementation->InputInternal[p].second->GetOutputPort();
}
//----------------------------------------------------------------------------
vtkAlgorithmOutput* vtkDataRepresentation::GetInternalAnnotationOutputPort(int port, int conn)
{
if (port >= this->GetNumberOfInputPorts() || conn >= this->GetNumberOfInputConnections(port))
{
vtkErrorMacro(
"Port " << port << ", connection " << conn << " is not defined on this representation.");
return nullptr;
}
// Create a new filter in the cache if necessary.
std::pair<int, int> p(port, conn);
if (this->Implementation->ConvertDomainInternal.find(p) ==
this->Implementation->ConvertDomainInternal.end())
{
this->Implementation->ConvertDomainInternal[p] =
vtkSmartPointer<vtkConvertSelectionDomain>::New();
}
// Set up the inputs to the cached filter.
vtkConvertSelectionDomain* domain = this->Implementation->ConvertDomainInternal[p];
domain->SetInputConnection(0, this->GetAnnotationLink()->GetOutputPort(0));
domain->SetInputConnection(1, this->GetAnnotationLink()->GetOutputPort(1));
domain->SetInputConnection(2, this->GetInternalOutputPort(port, conn));
// Output port 0 of the convert domain filter is the linked
// annotation(s) (the vtkAnnotationLayers object).
return domain->GetOutputPort();
}
//----------------------------------------------------------------------------
vtkAlgorithmOutput* vtkDataRepresentation::GetInternalSelectionOutputPort(int port, int conn)
{
// First make sure the convert domain filter is up to date.
if (!this->GetInternalAnnotationOutputPort(port, conn))
{
return nullptr;
}
// Output port 1 of the convert domain filter is the current selection
// that was contained in the linked annotation.
std::pair<int, int> p(port, conn);
if (this->Implementation->ConvertDomainInternal.find(p) !=
this->Implementation->ConvertDomainInternal.end())
{
return this->Implementation->ConvertDomainInternal[p]->GetOutputPort(1);
}
return nullptr;
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::Select(vtkView* view, vtkSelection* selection, bool extend)
{
if (this->Selectable)
{
vtkSelection* converted = this->ConvertSelection(view, selection);
if (converted)
{
this->UpdateSelection(converted, extend);
if (converted != selection)
{
converted->Delete();
}
}
}
}
//----------------------------------------------------------------------------
vtkSelection* vtkDataRepresentation::ConvertSelection(
vtkView* vtkNotUsed(view), vtkSelection* selection)
{
return selection;
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::UpdateSelection(vtkSelection* selection, bool extend)
{
if (extend)
{
selection->Union(this->AnnotationLinkInternal->GetCurrentSelection());
}
this->AnnotationLinkInternal->SetCurrentSelection(selection);
this->InvokeEvent(vtkCommand::SelectionChangedEvent, reinterpret_cast<void*>(selection));
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::Annotate(vtkView* view, vtkAnnotationLayers* annotations, bool extend)
{
vtkAnnotationLayers* converted = this->ConvertAnnotations(view, annotations);
if (converted)
{
this->UpdateAnnotations(converted, extend);
if (converted != annotations)
{
converted->Delete();
}
}
}
//----------------------------------------------------------------------------
vtkAnnotationLayers* vtkDataRepresentation::ConvertAnnotations(
vtkView* vtkNotUsed(view), vtkAnnotationLayers* annotations)
{
return annotations;
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::UpdateAnnotations(vtkAnnotationLayers* annotations, bool extend)
{
if (extend)
{
// Append the annotations to the existing set of annotations on the link
vtkAnnotationLayers* currentAnnotations = this->AnnotationLinkInternal->GetAnnotationLayers();
for (unsigned int i = 0; i < annotations->GetNumberOfAnnotations(); ++i)
{
currentAnnotations->AddAnnotation(annotations->GetAnnotation(i));
}
this->InvokeEvent(
vtkCommand::AnnotationChangedEvent, reinterpret_cast<void*>(currentAnnotations));
}
else
{
this->AnnotationLinkInternal->SetAnnotationLayers(annotations);
this->InvokeEvent(vtkCommand::AnnotationChangedEvent, reinterpret_cast<void*>(annotations));
}
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::SetSelectionArrayName(const char* name)
{
if (!this->SelectionArrayNames)
{
this->SelectionArrayNames = vtkStringArray::New();
}
this->SelectionArrayNames->Initialize();
this->SelectionArrayNames->InsertNextValue(name);
}
//----------------------------------------------------------------------------
const char* vtkDataRepresentation::GetSelectionArrayName()
{
if (this->SelectionArrayNames && this->SelectionArrayNames->GetNumberOfTuples() > 0)
{
return this->SelectionArrayNames->GetValue(0);
}
return nullptr;
}
//----------------------------------------------------------------------------
void vtkDataRepresentation::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "AnnotationLink: " << (this->AnnotationLinkInternal ? "" : "(null)") << endl;
if (this->AnnotationLinkInternal)
{
this->AnnotationLinkInternal->PrintSelf(os, indent.GetNextIndent());
}
os << indent << "Selectable: " << this->Selectable << endl;
os << indent << "SelectionType: " << this->SelectionType << endl;
os << indent << "SelectionArrayNames: " << (this->SelectionArrayNames ? "" : "(null)") << endl;
if (this->SelectionArrayNames)
{
this->SelectionArrayNames->PrintSelf(os, indent.GetNextIndent());
}
}