vtkXOpenGLRenderWindow.h

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

  Program:   Visualization Toolkit
  Module:    vtkXOpenGLRenderWindow.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 vtkXOpenGLRenderWindow_h
#define vtkXOpenGLRenderWindow_h

#include "vtkRenderingOpenGL2Module.h" // For export macro
#include <stack> // for ivar
#include "vtkOpenGLRenderWindow.h"
#include <X11/Xlib.h> // Needed for X types used in the public interface
#include <X11/Xutil.h> // Needed for X types used in the public interface

class vtkIdList;
class vtkXOpenGLRenderWindowInternal;

class VTKRENDERINGOPENGL2_EXPORT vtkXOpenGLRenderWindow : public vtkOpenGLRenderWindow
{
public:
  static vtkXOpenGLRenderWindow *New();
  vtkTypeMacro(vtkXOpenGLRenderWindow, vtkOpenGLRenderWindow);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Start() override;

  void Frame() override;

  virtual void WindowInitialize();

  void Initialize() override;

  void Finalize() override;

  void SetFullScreen(vtkTypeBool) override;

  void WindowRemap() override;

  virtual void PrefFullScreen();

  void SetSize(int,int) override;
  void SetSize(int a[2]) override { this->SetSize(a[0], a[1]); }


  virtual Colormap GetDesiredColormap();
  virtual Visual  *GetDesiredVisual();
  virtual XVisualInfo     *GetDesiredVisualInfo();
  virtual int GetDesiredDepth();

  void SetStereoCapableWindow(vtkTypeBool capable) override;

  void MakeCurrent() override;

  bool IsCurrent() override;

  void SetForceMakeCurrent() override;

  const char *ReportCapabilities() override;

  int IsDirect() override;

  void *GetGenericDisplayId() override
  {
      return this->GetDisplayId();
  }

  void *GetGenericWindowId() override;
  void *GetGenericParentId() override
  {
      return reinterpret_cast<void *>(this->ParentId);
  }

  void *GetGenericContext() override;
  void *GetGenericDrawable() override
  {
      return reinterpret_cast<void *>(this->WindowId);
  }

  int *GetScreenSize() VTK_SIZEHINT(2) override;

  int *GetPosition() VTK_SIZEHINT(2) override;

  Display *GetDisplayId();


  void SetDisplayId(Display *);
  void SetDisplayId(void *) override;

  Window GetParentId();


  void SetParentId(Window);
  void SetParentId(void *) override;

  Window GetWindowId();


  void SetWindowId(Window);
  void SetWindowId(void *) override;

  void SetNextWindowId(Window);

  void SetNextWindowId(void *) override;

  void SetWindowName(const char *) override;

  bool InitializeFromCurrentContext() override;

  bool GetPlatformSupportsRenderWindowSharing() override { return true; };


  void SetPosition(int,int) override;
  void SetPosition(int a[2]) override { this->SetPosition(a[0], a[1]); }


  void HideCursor() override;
  void ShowCursor() override;

  void SetCurrentCursor(int) override;

  int GetEventPending() override;

  void SetWindowInfo(const char *info) override;

  void SetNextWindowInfo(const char *info) override;

  void SetParentInfo(const char *info) override;

  void Render() override;

  void SetOffScreenRendering(vtkTypeBool i) override;


  void PushContext() override;
  void PopContext() override;

  bool SetSwapControl(int i) override;

protected:
  vtkXOpenGLRenderWindow();
  ~vtkXOpenGLRenderWindow() override;

  vtkXOpenGLRenderWindowInternal *Internal;

  Window   ParentId;
  Window   WindowId;
  Window   NextWindowId;
  Display *DisplayId;
  Colormap ColorMap;
  int      OwnWindow;
  int      OwnDisplay;
  int      ScreenSize[2];
  int      CursorHidden;
  int      ForceMakeCurrent;
  int      UsingHardware;

  std::stack<Display *> DisplayStack;
  std::stack<Drawable> DrawableStack;
  std::stack<void *> ContextStack;

  // we must keep track of the cursors we are using
  Cursor XCCrosshair;
  Cursor XCArrow;
  Cursor XCSizeAll;
  Cursor XCSizeNS;
  Cursor XCSizeWE;
  Cursor XCSizeNE;
  Cursor XCSizeNW;
  Cursor XCSizeSE;
  Cursor XCSizeSW;
  Cursor XCHand;


  void CreateAWindow() override;
  void DestroyWindow() override;
  void CreateOffScreenWindow(int width, int height);
  void DestroyOffScreenWindow();
  void ResizeOffScreenWindow(int width, int height);
  void CloseDisplay();


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



#endif