vtkXRenderWindowInteractor.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkXRenderWindowInteractor_h
#define vtkXRenderWindowInteractor_h

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

#include "vtkRenderWindowInteractor.h"
#include "vtkRenderingUIModule.h" // For export macro
#include "vtkWrappingHints.h"     // For VTK_MARSHALAUTO
#include "vtkX11Functions.h"      // Needed for X types in the public interface

VTK_ABI_NAMESPACE_BEGIN
class vtkCallbackCommand;
class vtkXRenderWindowInteractorInternals;

class VTKRENDERINGUI_EXPORT VTK_MARSHALAUTO vtkXRenderWindowInteractor
  : public vtkRenderWindowInteractor
{
public:
  static vtkXRenderWindowInteractor* New();
  vtkTypeMacro(vtkXRenderWindowInteractor, vtkRenderWindowInteractor);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Initialize() override;

  void TerminateApp() override;

  void ProcessEvents() override;


  void Enable() override;
  void Disable() override;

  void UpdateSize(int, int) override;

  void GetMousePosition(int* x, int* y) override;

  void GetMousePositionAndModifierKeysState(int* x, int* y, unsigned int* keys);

  void DispatchEvent(XEvent*);

protected:
  vtkXRenderWindowInteractor();
  ~vtkXRenderWindowInteractor() override;

  void UpdateSizeNoXResize(int, int);

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

  Display* DisplayId;
  Window WindowId;
  Atom KillAtom;
  int PositionBeforeStereo[2];
  vtkXRenderWindowInteractorInternals* Internal;

  // Drag and drop related
  int XdndSourceVersion;
  Window XdndSource;
  Atom XdndFormatAtom;
  Atom XdndURIListAtom;
  Atom XdndTypeListAtom;
  Atom XdndEnterAtom;
  Atom XdndPositionAtom;
  Atom XdndDropAtom;
  Atom XdndActionCopyAtom;
  Atom XdndStatusAtom;
  Atom XdndFinishedAtom;


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

  void FireTimers();

  void StartEventLoop() override;

  void WaitForEvents();

  bool CheckDisplayId(Display* dpy);

  void Finalize();

private:
  vtkXRenderWindowInteractor(const vtkXRenderWindowInteractor&) = delete;
  void operator=(const vtkXRenderWindowInteractor&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif