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146 lines
3.8 KiB
C++
146 lines
3.8 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkActor2DCollection.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkActor2DCollection
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* @brief a list of 2D actors
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*
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* vtkActor2DCollection is a subclass of vtkCollection. vtkActor2DCollection
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* maintains a collection of vtkActor2D objects that is sorted by layer
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* number, with lower layer numbers at the start of the list. This allows
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* the vtkActor2D objects to be rendered in the correct order.
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*
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* @sa
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* vtkActor2D vtkCollection
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*/
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#ifndef vtkActor2DCollection_h
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#define vtkActor2DCollection_h
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#include "vtkPropCollection.h"
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#include "vtkRenderingCoreModule.h" // For export macro
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#include "vtkActor2D.h" // Needed for inline methods
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class vtkViewport;
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class VTKRENDERINGCORE_EXPORT vtkActor2DCollection : public vtkPropCollection
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{
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public:
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/**
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* Destructor for the vtkActor2DCollection class. This removes all
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* objects from the collection.
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*/
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static vtkActor2DCollection* New();
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vtkTypeMacro(vtkActor2DCollection, vtkPropCollection);
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/**
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* Sorts the vtkActor2DCollection by layer number. Smaller layer
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* numbers are first. Layer numbers can be any integer value.
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*/
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void Sort();
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/**
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* Add an actor to the list. The new actor is inserted in the list
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* according to it's layer number.
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*/
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void AddItem(vtkActor2D* a);
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//@{
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/**
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* Standard Collection methods
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*/
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int IsItemPresent(vtkActor2D* a);
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vtkActor2D* GetNextActor2D();
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vtkActor2D* GetLastActor2D();
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//@}
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//@{
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/**
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* Access routines that are provided for compatibility with previous
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* version of VTK. Please use the GetNextActor2D(), GetLastActor2D()
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* variants where possible.
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*/
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vtkActor2D* GetNextItem();
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vtkActor2D* GetLastItem();
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//@}
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/**
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* Sort and then render the collection of 2D actors.
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*/
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void RenderOverlay(vtkViewport* viewport);
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/**
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* Reentrant safe way to get an object in a collection. Just pass the
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* same cookie back and forth.
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*/
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vtkActor2D* GetNextActor2D(vtkCollectionSimpleIterator& cookie)
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{
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return static_cast<vtkActor2D*>(this->GetNextItemAsObject(cookie));
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}
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protected:
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vtkActor2DCollection() {}
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~vtkActor2DCollection() override;
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void DeleteElement(vtkCollectionElement*) override;
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private:
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// hide the standard AddItem from the user and the compiler.
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void AddItem(vtkObject* o) { this->vtkCollection::AddItem(o); }
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void AddItem(vtkProp* o) { this->vtkPropCollection::AddItem(o); }
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int IsItemPresent(vtkObject* o) { return this->vtkCollection::IsItemPresent(o); }
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private:
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vtkActor2DCollection(const vtkActor2DCollection&) = delete;
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void operator=(const vtkActor2DCollection&) = delete;
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};
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inline int vtkActor2DCollection::IsItemPresent(vtkActor2D* a)
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{
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return this->vtkCollection::IsItemPresent(a);
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}
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inline vtkActor2D* vtkActor2DCollection::GetNextActor2D()
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{
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return static_cast<vtkActor2D*>(this->GetNextItemAsObject());
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}
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inline vtkActor2D* vtkActor2DCollection::GetLastActor2D()
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{
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if (this->Bottom == nullptr)
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{
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return nullptr;
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}
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else
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{
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return static_cast<vtkActor2D*>(this->Bottom->Item);
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}
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}
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inline vtkActor2D* vtkActor2DCollection::GetNextItem()
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{
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return this->GetNextActor2D();
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}
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inline vtkActor2D* vtkActor2DCollection::GetLastItem()
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{
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return this->GetLastActor2D();
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}
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#endif
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// VTK-HeaderTest-Exclude: vtkActor2DCollection.h
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