#pragma once

#if defined(PETSC_HAVE_WINDOWS_H)
  #include <windows.h>
#endif
#if defined(PETSC_HAVE_WINDOWSX_H)
  #include <windowsx.h>
#endif
#include <petscdraw.h>

/* Nodes that record mouse actions when needed */
typedef struct _p_MouseNode *MouseNode;
struct _p_MouseNode {
  PetscDrawButton Button;
  POINT           user;
  POINT           phys;
  MouseNode       mnext;
  int             Length;
};

/* nodes that contain handle to all user created windows */
typedef struct _p_WindowNode *WindowNode;
struct _p_WindowNode {
  HWND       hWnd;
  WindowNode wnext, wprev;
  HANDLE     event;
  MouseNode  MouseListHead;
  MouseNode  MouseListTail;
  BOOL       IsGetMouseOn;
  PetscBool  DoubleBuffered;
  HDC        Buffer, DoubleBuffer;
  HBITMAP    BufferBit, DoubleBufferBit;
  HGDIOBJ    store, dbstore;
  int        bitwidth, bitheight;
};

/* Nodes that hold all information about a windows device context */
typedef struct {
  HDC        hdc;
  HWND       hWnd;
  int        linewidth;
  int        pointdiameter;
  COLORREF   currentcolor;
  int        stringheight;
  int        stringwidth;
  int        pause;
  PetscBool  haveresized;
  HANDLE     hReadyEvent;
  int        x, y, w, h; /* Size and location of window */
  WindowNode node;       /* so we can grab windownode info if needed */
  DWORD      popup, caption, overlapped;

} PetscDraw_Win32;