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/*=========================================================================
Program: Visualization Toolkit
Module: vtkInformationVariantVectorKey.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.
=========================================================================*/
#include "vtkInformationVariantVectorKey.h"
#include "vtkInformation.h" // For vtkErrorWithObjectMacro
#include "vtkVariant.h"
#include <vector>
//----------------------------------------------------------------------------
vtkInformationVariantVectorKey
::vtkInformationVariantVectorKey(const char* name, const char* location,
int length):
vtkInformationKey(name, location), RequiredLength(length)
{
vtkCommonInformationKeyManager::Register(this);
}
//----------------------------------------------------------------------------
vtkInformationVariantVectorKey::~vtkInformationVariantVectorKey()
{
}
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
class vtkInformationVariantVectorValue: public vtkObjectBase
{
public:
vtkBaseTypeMacro(vtkInformationVariantVectorValue, vtkObjectBase);
std::vector<vtkVariant> Value;
static vtkVariant Invalid;
};
vtkVariant vtkInformationVariantVectorValue::Invalid;
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::Append(vtkInformation* info, const vtkVariant& value)
{
vtkInformationVariantVectorValue* v =
static_cast<vtkInformationVariantVectorValue *>(
this->GetAsObjectBase(info));
if(v)
{
v->Value.push_back(value);
}
else
{
this->Set(info, &value, 1);
}
}
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::Set(vtkInformation* info, const vtkVariant* value,
int length)
{
if(value)
{
if(this->RequiredLength >= 0 && length != this->RequiredLength)
{
vtkErrorWithObjectMacro(
info,
"Cannot store vtkVariant vector of length " << length
<< " with key " << this->Location << "::" << this->Name
<< " which requires a vector of length "
<< this->RequiredLength << ". Removing the key instead.");
this->SetAsObjectBase(info, 0);
return;
}
vtkInformationVariantVectorValue* v =
new vtkInformationVariantVectorValue;
v->InitializeObjectBase();
v->Value.insert(v->Value.begin(), value, value+length);
this->SetAsObjectBase(info, v);
v->Delete();
}
else
{
this->SetAsObjectBase(info, 0);
}
}
//----------------------------------------------------------------------------
const vtkVariant* vtkInformationVariantVectorKey::Get(
vtkInformation* info) const
{
const vtkInformationVariantVectorValue* v =
static_cast<const vtkInformationVariantVectorValue *>(
this->GetAsObjectBase(info));
return (v && !v->Value.empty())?(&v->Value[0]):0;
}
//----------------------------------------------------------------------------
const vtkVariant& vtkInformationVariantVectorKey::Get(
vtkInformation* info, int idx) const
{
if (idx >= this->Length(info))
{
vtkErrorWithObjectMacro(info,
"Information does not contain " << idx
<< " elements. Cannot return information value.");
return vtkInformationVariantVectorValue::Invalid;
}
const vtkVariant* values = this->Get(info);
return values[idx];
}
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::Get(vtkInformation* info,
vtkVariant* value) const
{
const vtkInformationVariantVectorValue* v =
static_cast<const vtkInformationVariantVectorValue *>(
this->GetAsObjectBase(info));
if(v && value)
{
for(std::vector<vtkVariant>::size_type i = 0;
i < v->Value.size(); ++i)
{
value[i] = v->Value[i];
}
}
}
//----------------------------------------------------------------------------
int vtkInformationVariantVectorKey::Length(vtkInformation* info) const
{
const vtkInformationVariantVectorValue* v =
static_cast<const vtkInformationVariantVectorValue *>(
this->GetAsObjectBase(info));
return v?static_cast<int>(v->Value.size()):0;
}
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::ShallowCopy(vtkInformation* from,
vtkInformation* to)
{
this->Set(to, this->Get(from), this->Length(from));
}
//----------------------------------------------------------------------------
void vtkInformationVariantVectorKey::Print(ostream& os, vtkInformation* info)
{
// Print the value.
if(this->Has(info))
{
const vtkVariant* value = this->Get(info);
int length = this->Length(info);
const char* sep = "";
for(int i=0; i < length; ++i)
{
os << sep << value[i];
sep = " ";
}
}
}
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