/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkTclUtil.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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.

=========================================================================*/

#ifndef vtkTclUtil_h
#define vtkTclUtil_h

#include "vtkCommand.h"
#include "vtkObject.h"
#include "vtkTcl.h"

#ifdef _WIN32
#define VTKTCL_EXPORT __declspec(dllexport)
#else
#define VTKTCL_EXPORT
#endif

extern VTKTCL_EXPORT void vtkTclUpdateCommand(Tcl_Interp* interp, char* name, vtkObject* obj);

extern VTKTCL_EXPORT void vtkTclDeleteObjectFromHash(
  vtkObject*, unsigned long eventId, void*, void*);
extern VTKTCL_EXPORT void vtkTclGenericDeleteObject(ClientData cd);

extern VTKTCL_EXPORT void vtkTclGetObjectFromPointer(
  Tcl_Interp* interp, void* temp, const char* targetType);

extern VTKTCL_EXPORT void* vtkTclGetPointerFromObject(
  const char* name, const char* result_type, Tcl_Interp* interp, int& error);

extern VTKTCL_EXPORT void vtkTclVoidFunc(void*);
extern VTKTCL_EXPORT void vtkTclVoidFuncArgDelete(void*);
extern VTKTCL_EXPORT void vtkTclListInstances(Tcl_Interp* interp, ClientData arg);
extern VTKTCL_EXPORT int vtkTclInDelete(Tcl_Interp* interp);

extern VTKTCL_EXPORT int vtkTclNewInstanceCommand(
  ClientData cd, Tcl_Interp* interp, int argc, char* argv[]);
extern VTKTCL_EXPORT void vtkTclDeleteCommandStruct(ClientData cd);
extern VTKTCL_EXPORT void vtkTclCreateNew(Tcl_Interp* interp, const char* cname,
  ClientData (*NewCommand)(),
  int (*CommandFunction)(ClientData cd, Tcl_Interp* interp, int argc, char* argv[]));

class vtkTclCommand : public vtkCommand
{
public:
  static vtkTclCommand* New() { return new vtkTclCommand; }

  void SetStringCommand(const char* arg);
  void SetInterp(Tcl_Interp* interp) { this->Interp = interp; }

  void Execute(vtkObject*, unsigned long, void*);

  char* StringCommand;
  Tcl_Interp* Interp;

protected:
  vtkTclCommand();
  ~vtkTclCommand();
};

typedef struct _vtkTclVoidFuncArg
{
  Tcl_Interp* interp;
  char* command;
} vtkTclVoidFuncArg;

struct vtkTclCommandArgStruct
{
  void* Pointer;
  Tcl_Interp* Interp;
  unsigned long Tag;
};

struct vtkTclCommandStruct
{
  ClientData (*NewCommand)();
  int (*CommandFunction)(ClientData cd, Tcl_Interp* interp, int argc, char* argv[]);
};

struct vtkTclInterpStruct
{
  Tcl_HashTable InstanceLookup;
  Tcl_HashTable PointerLookup;
  Tcl_HashTable CommandLookup;

  int Number;
  int DebugOn;
  int InDelete;
  int DeleteExistingObjectOnNew;
};

extern VTKTCL_EXPORT void vtkTclApplicationInitExecutable(int argc, const char* const argv[]);
extern VTKTCL_EXPORT void vtkTclApplicationInitTclTk(
  Tcl_Interp* interp, const char* const relative_dirs[]);

#endif
// VTK-HeaderTest-Exclude: vtkTclUtil.h