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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.
=========================================================================*/
// .NAME vtkSMPropertyLink -
// .SECTION Description
// 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);
// Description:
// 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);
// Description:
// Get the number of properties that are involved in this link.
unsigned int GetNumberOfLinkedObjects();
unsigned int GetNumberOfLinkedProperties();
// Description:
// Get a property involved in this link.
vtkSMProperty* GetLinkedProperty(int index);
// Description:
// Get a proxy involved in this link.
vtkSMProxy* GetLinkedProxy(int index);
// Description:
// Get a property involved in this link.
const char* GetLinkedPropertyName(int index);
// Description:
// Get the direction of a property involved in this link
// (see vtkSMLink::UpdateDirections)
int GetLinkedObjectDirection(int index);
int GetLinkedPropertyDirection(int index);
// Description:
// Remove all links.
virtual void RemoveAllLinks();
// Description:
// 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);
protected:
vtkSMPropertyLink();
~vtkSMPropertyLink();
// Description:
// Synchronize the value of all output properties with the input property.
void Synchronize();
friend class vtkSMPropertyLinkInternals;
friend class vtkSMPropertyLinkObserver;
// Description:
// Load the link state.
virtual int LoadXMLState(vtkPVXMLElement* linkElement, vtkSMProxyLocator* locator);
// Description:
// Save the state of the link.
virtual void SaveXMLState(const char* linkname, vtkPVXMLElement* parent);
virtual void UpdateVTKObjects(vtkSMProxy* caller);
virtual void PropertyModified(vtkSMProxy* caller, const char* pname);
virtual void PropertyModified(vtkSMProperty* property);
virtual void UpdateProperty(vtkSMProxy* caller, const char* pname);
// Description:
// Update the internal protobuf state
virtual void UpdateState();
private:
vtkSMPropertyLinkInternals* Internals;
bool ModifyingProperty;
vtkSMPropertyLink(const vtkSMPropertyLink&); // Not implemented.
void operator=(const vtkSMPropertyLink&); // Not implemented.
};
#endif
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