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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkRenderViewBase.h"
#include "vtkCamera.h"
#include "vtkGenericRenderWindowInteractor.h"
#include "vtkInteractorObserver.h"
#include "vtkObjectFactory.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkRendererCollection.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkRenderViewBase);
vtkRenderViewBase::vtkRenderViewBase()
{
this->Renderer = vtkSmartPointer<vtkRenderer>::New();
this->RenderWindow = vtkSmartPointer<vtkRenderWindow>::New();
this->RenderWindow->AddRenderer(this->Renderer);
// We will handle all interactor renders by turning off rendering
// in the interactor and listening to the interactor's render event.
vtkSmartPointer<vtkRenderWindowInteractor> iren =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
this->SetInteractor(iren);
}
vtkRenderViewBase::~vtkRenderViewBase() = default;
vtkRenderer* vtkRenderViewBase::GetRenderer()
{
return this->Renderer;
}
void vtkRenderViewBase::SetRenderer(vtkRenderer* newren)
{
vtkRendererCollection* rens = this->RenderWindow->GetRenderers();
vtkCollectionSimpleIterator cookie;
rens->InitTraversal(cookie);
while (vtkRenderer* ren = rens->GetNextRenderer(cookie))
{
if (ren->GetLayer() < 2)
{
ren->SetRenderWindow(nullptr);
this->RenderWindow->RemoveRenderer(ren);
}
}
this->RenderWindow->AddRenderer(newren);
this->Renderer = newren;
}
vtkRenderWindow* vtkRenderViewBase::GetRenderWindow()
{
return this->RenderWindow;
}
void vtkRenderViewBase::SetRenderWindow(vtkRenderWindow* win)
{
if (!win)
{
vtkErrorMacro(<< "SetRenderWindow called with a null window pointer."
<< " That can't be right.");
return;
}
// move renderers to new window
vtkRendererCollection* rens = this->RenderWindow->GetRenderers();
while (rens->GetNumberOfItems())
{
vtkRenderer* ren = rens->GetFirstRenderer();
ren->SetRenderWindow(nullptr);
win->AddRenderer(ren);
this->RenderWindow->RemoveRenderer(ren);
}
vtkSmartPointer<vtkInteractorObserver> style =
this->GetInteractor() ? this->GetInteractor()->GetInteractorStyle() : nullptr;
this->RenderWindow = win;
if (this->GetInteractor())
{
this->GetInteractor()->SetInteractorStyle(style);
}
else if (style)
{
vtkGenericRenderWindowInteractor* iren = vtkGenericRenderWindowInteractor::New();
win->SetInteractor(iren);
iren->SetInteractorStyle(style);
iren->Delete();
}
}
vtkRenderWindowInteractor* vtkRenderViewBase::GetInteractor()
{
return this->RenderWindow->GetInteractor();
}
void vtkRenderViewBase::SetInteractor(vtkRenderWindowInteractor* interactor)
{
if (interactor == this->GetInteractor())
{
return;
}
vtkSmartPointer<vtkInteractorObserver> style =
this->GetInteractor() ? this->GetInteractor()->GetInteractorStyle() : nullptr;
this->RenderWindow->SetInteractor(interactor);
if (this->GetInteractor())
{
this->GetInteractor()->SetInteractorStyle(style);
}
else if (style && this->RenderWindow)
{
vtkGenericRenderWindowInteractor* iren = vtkGenericRenderWindowInteractor::New();
this->RenderWindow->SetInteractor(iren);
iren->SetInteractorStyle(style);
iren->Delete();
}
}
void vtkRenderViewBase::Render()
{
this->PrepareForRendering();
this->RenderWindow->Render();
}
void vtkRenderViewBase::ResetCamera()
{
this->PrepareForRendering();
this->Renderer->ResetCamera();
}
void vtkRenderViewBase::ResetCameraClippingRange()
{
this->PrepareForRendering();
this->Renderer->ResetCameraClippingRange();
}
void vtkRenderViewBase::PrepareForRendering()
{
this->Update();
}
void vtkRenderViewBase::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "RenderWindow: ";
if (this->RenderWindow)
{
os << "\n";
this->RenderWindow->PrintSelf(os, indent.GetNextIndent());
}
else
{
os << "(none)\n";
}
os << indent << "Renderer: ";
if (this->Renderer)
{
os << "\n";
this->Renderer->PrintSelf(os, indent.GetNextIndent());
}
else
{
os << "(none)\n";
}
}
VTK_ABI_NAMESPACE_END
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