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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkMathTextUtilities.h"
#include "vtkCamera.h"
#include "vtkImageData.h"
#include "vtkImageViewer2.h"
#include "vtkNew.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkTextProperty.h"
//------------------------------------------------------------------------------
int TestRenderString(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
const char* str = "$\\hat{H}\\psi = \\left(-\\frac{\\hbar}{2m}\\nabla^2"
" + V(r)\\right) \\psi = \\psi\\cdot E $";
vtkNew<vtkImageData> image;
vtkNew<vtkMathTextUtilities> utils;
utils->SetScaleToPowerOfTwo(false);
vtkNew<vtkTextProperty> tprop;
tprop->SetColor(1, 1, 1);
tprop->SetFontSize(50);
vtkNew<vtkImageViewer2> viewer;
utils->RenderString(str, image, tprop, viewer->GetRenderWindow()->GetDPI());
viewer->SetInputData(image);
vtkNew<vtkRenderWindowInteractor> iren;
viewer->SetupInteractor(iren);
viewer->Render();
viewer->GetRenderer()->ResetCamera();
viewer->GetRenderer()->GetActiveCamera()->Zoom(6.0);
viewer->Render();
viewer->GetRenderWindow()->SetMultiSamples(0);
viewer->GetRenderWindow()->GetInteractor()->Initialize();
viewer->GetRenderWindow()->GetInteractor()->Start();
return EXIT_SUCCESS;
}
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