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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __vtkCaptureScreen_h
#define __vtkCaptureScreen_h
#include <string>
#include "vtkSmartPointer.h"
#include "vtkWindowToImageFilter.h"
#include "vtkRenderWindow.h"
template < typename TImageWriter >
class vtkCaptureScreen
{
public:
typedef TImageWriter ImageWriterType;
vtkCaptureScreen( vtkRenderWindow* iRenderer ) : m_Renderer ( iRenderer )
{}
vtkCaptureScreen() : m_Renderer( ITK_NULLPTR )
{}
~vtkCaptureScreen( )
{}
void operator( ) ( const std::string& iFileName ) const
{
Capture( m_Renderer, iFileName );
}
void operator( ) ( vtkRenderWindow* iRenderer,
const std::string& iFileName ) const
{
m_Renderer = iRenderer;
Capture( m_Renderer, iFileName );
}
private:
vtkCaptureScreen ( const vtkCaptureScreen& );
void operator = ( const vtkCaptureScreen& );
vtkRenderWindow* m_Renderer;
void Capture( vtkRenderWindow* iRenderer,
const std::string& iFileName ) const
{
if( iRenderer )
{
vtkSmartPointer< vtkWindowToImageFilter > Dumper =
vtkSmartPointer< vtkWindowToImageFilter >::New( );
Dumper->SetInput( iRenderer );
Dumper->Update( );
vtkSmartPointer< ImageWriterType > writer =
vtkSmartPointer< ImageWriterType >::New( );
writer->SetFileName ( iFileName.c_str( ) );
writer->SetInputConnection ( Dumper->GetOutputPort( ) );
writer->Write( );
}
}
};
#endif
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