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/*=========================================================================
Program: ParaView
Module: vtkSMPropertyLink.h
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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.
=========================================================================*/
/**
* @class vtkSMPropertyLink
*
* Creates a link between two properties. Can create M->N links.
* At the time when the link is created every output property is synchornized
* with the first input property.
*/
#ifndef vtkSMPropertyLink_h
#define vtkSMPropertyLink_h
#include "vtkPVServerManagerCoreModule.h" //needed for exports
#include "vtkSMLink.h"
class vtkSMProperty;
class vtkSMPropertyLinkInternals;
class vtkSMPropertyLinkObserver;
class VTKPVSERVERMANAGERCORE_EXPORT vtkSMPropertyLink : public vtkSMLink
{
public:
static vtkSMPropertyLink* New();
vtkTypeMacro(vtkSMPropertyLink, vtkSMLink);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
//@{
/**
* Add a property to the link. updateDir determines whether a property of
* the proxy is read or written. When a property of an input proxy
* changes, it's value is pushed to all other output proxies in the link.
* A property can be set to be both input and output by adding 2 links, one
* to INPUT and the other to OUTPUT
* When a link is added, all output property values are
* synchronized with that of the input.
*/
void AddLinkedProperty(vtkSMProxy* proxy, const char* propertyname, int updateDir);
void RemoveLinkedProperty(vtkSMProxy* proxy, const char* propertyname);
//@}
//@{
/**
* Get the number of properties that are involved in this link.
*/
unsigned int GetNumberOfLinkedObjects() VTK_OVERRIDE;
unsigned int GetNumberOfLinkedProperties();
//@}
/**
* Get a property involved in this link.
*/
vtkSMProperty* GetLinkedProperty(int index);
/**
* Get a proxy involved in this link.
*/
vtkSMProxy* GetLinkedProxy(int index) VTK_OVERRIDE;
/**
* Get a property involved in this link.
*/
const char* GetLinkedPropertyName(int index);
//@{
/**
* Get the direction of a property involved in this link
* (see vtkSMLink::UpdateDirections)
*/
int GetLinkedObjectDirection(int index) VTK_OVERRIDE;
int GetLinkedPropertyDirection(int index);
//@}
/**
* Remove all links.
*/
virtual void RemoveAllLinks() VTK_OVERRIDE;
/**
* This method is used to initialize the object to the given state
* If the definitionOnly Flag is set to True the proxy won't load the
* properties values and just setup the new proxy hierarchy with all subproxy
* globalIDs set. This enables splitting the load process in 2 step to prevent
* invalid state when a property refers to a sub-proxy that does not exist yet.
*/
virtual void LoadState(const vtkSMMessage* msg, vtkSMProxyLocator* locator) VTK_OVERRIDE;
protected:
vtkSMPropertyLink();
~vtkSMPropertyLink();
/**
* Synchronize the value of all output properties with the input property.
*/
void Synchronize();
friend class vtkSMPropertyLinkInternals;
friend class vtkSMPropertyLinkObserver;
/**
* Load the link state.
*/
virtual int LoadXMLState(vtkPVXMLElement* linkElement, vtkSMProxyLocator* locator) VTK_OVERRIDE;
/**
* Save the state of the link.
*/
virtual void SaveXMLState(const char* linkname, vtkPVXMLElement* parent) VTK_OVERRIDE;
virtual void UpdateVTKObjects(vtkSMProxy* caller) VTK_OVERRIDE;
virtual void PropertyModified(vtkSMProxy* caller, const char* pname) VTK_OVERRIDE;
virtual void PropertyModified(vtkSMProperty* property);
virtual void UpdateProperty(vtkSMProxy* caller, const char* pname) VTK_OVERRIDE;
/**
* Update the internal protobuf state
*/
virtual void UpdateState() VTK_OVERRIDE;
private:
vtkSMPropertyLinkInternals* Internals;
bool ModifyingProperty;
vtkSMPropertyLink(const vtkSMPropertyLink&) VTK_DELETE_FUNCTION;
void operator=(const vtkSMPropertyLink&) VTK_DELETE_FUNCTION;
};
#endif
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