dox/Rendering/vtkXRenderWindowInteractor.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkXRenderWindowInteractor.h,v $

  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 __vtkXRenderWindowInteractor_h
#define __vtkXRenderWindowInteractor_h

//===========================================================
// now we define the C++ class

#include "vtkRenderWindowInteractor.h"
#include <X11/StringDefs.h> // Needed for X types in the public interface
#include <X11/Intrinsic.h> // Needed for X types in the public interface

class vtkCallbackCommand;
class vtkXRenderWindowInteractorInternals;

//BTX
// Forward declare internal friend functions.
void vtkXRenderWindowInteractorCallback(Widget,XtPointer, XEvent *,Boolean *);
void vtkXRenderWindowInteractorTimer(XtPointer,XtIntervalId *);
//ETX

class VTK_RENDERING_EXPORT vtkXRenderWindowInteractor : public vtkRenderWindowInteractor
{
public:
  static vtkXRenderWindowInteractor *New();
  vtkTypeRevisionMacro(vtkXRenderWindowInteractor,vtkRenderWindowInteractor);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Initialize();

  void TerminateApp(void) { exit(0); }


  vtkSetMacro(BreakLoopFlag, int);
  vtkGetMacro(BreakLoopFlag, int);
  vtkBooleanMacro(BreakLoopFlag, int);


  virtual void Initialize(XtAppContext app);
  vtkGetMacro( App, XtAppContext );
  

  virtual void Enable();
  virtual void Disable();

  virtual void Start();

  virtual void UpdateSize(int,int);


  virtual void SetWidget(Widget);
  Widget GetWidget() {return this->Top;};
  

  virtual void SetTopLevelShell(Widget);
  Widget GetTopLevelShell() {return this->TopLevelShell;};
  
  virtual void GetMousePosition(int *x, int *y); 


  friend void vtkXRenderWindowInteractorCallback(Widget,XtPointer,
                                                 XEvent *,Boolean *);
  friend void vtkXRenderWindowInteractorTimer(XtPointer,XtIntervalId *);

protected:
  vtkXRenderWindowInteractor();
  ~vtkXRenderWindowInteractor();

  //Using static here to avoid detroying context when many apps are open:
  static XtAppContext App;
  static int NumAppInitialized;

  Display *DisplayId;
  Window WindowId;
  Atom KillAtom;
  Widget Top;
  int OwnTop;
  int OwnApp;
  int PositionBeforeStereo[2];
  Widget TopLevelShell;
  int TimerId;
  vtkXRenderWindowInteractorInternals* Internal;


  virtual int InternalCreateTimer(int timerId, int timerType, unsigned long duration);
  virtual int InternalDestroyTimer(int platformTimerId);

  int BreakLoopFlag;
  XtIntervalId AddTimeOut(XtAppContext app_context, unsigned long interval,
                          XtTimerCallbackProc proc, XtPointer client_data) ;
  void Timer(XtPointer client_data, XtIntervalId *id); 
  void Callback(Widget w, XtPointer client_data, XEvent *event, Boolean *ctd);

  vtkCallbackCommand* BreakXtLoopCallback;
  static void BreakXtLoop(vtkObject*, unsigned long, void*, void*);

private:
  vtkXRenderWindowInteractor(const vtkXRenderWindowInteractor&);  // Not implemented.
  void operator=(const vtkXRenderWindowInteractor&);  // Not implemented.
};

#endif

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