vpDisplayWin32.h

/****************************************************************************
 *
 * ViSP, open source Visual Servoing Platform software.
 * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See https://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Windows 32 display base class
 *
 * Authors:
 * Bruno Renier
 *
*****************************************************************************/
 
#include <visp3/core/vpConfig.h>
 
#if (defined(VISP_HAVE_GDI) || defined(VISP_HAVE_D3D9))
 
#ifndef vpDisplayWin32_hh
#define vpDisplayWin32_hh
 
#include <string>
 
#include <visp3/core/vpDisplay.h>
#include <visp3/core/vpImage.h>
// Include WinSock2.h before windows.h to ensure that winsock.h is not
// included by windows.h since winsock.h and winsock2.h are incompatible
#include <WinSock2.h>
#include <visp3/core/vpImagePoint.h>
#include <visp3/core/vpRect.h>
#include <visp3/gui/vpWin32Renderer.h>
#include <visp3/gui/vpWin32Window.h>
#include <windows.h>
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
struct threadParam {
  vpDisplayWin32 *vpDisp;

  int x;

  int y;

  unsigned int w;

  unsigned int h;

  std::string title;
};
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

class VISP_EXPORT vpDisplayWin32 : public vpDisplay
{
protected:
  static const int MAX_INIT_DELAY;

  HANDLE hThread;

  DWORD threadId;

  bool iStatus;

  vpWin32Window window;

  RECT roi;

  friend void vpCreateWindow(threadParam *param);
 
public:
  explicit vpDisplayWin32(vpWin32Renderer *rend = NULL);
 
  vpDisplayWin32(vpImage<vpRGBa> &I, int winx = -1, int winy = -1, const std::string &title = "");
 
  vpDisplayWin32(vpImage<unsigned char> &I, int winx = -1, int winy = -1, const std::string &title = "");
 
  virtual ~vpDisplayWin32();
 
  void clearDisplay(const vpColor &color = vpColor::white);
  void closeDisplay();
  void displayImage(const vpImage<vpRGBa> &I);
  void displayImage(const vpImage<unsigned char> &I);
 
  void displayImageROI(const vpImage<unsigned char> &I, const vpImagePoint &iP, unsigned int width,
                       unsigned int height);
  void displayImageROI(const vpImage<vpRGBa> &I, const vpImagePoint &iP, unsigned int width, unsigned int height);
 
  void flushDisplay();
  void flushDisplayROI(const vpImagePoint &iP, unsigned int width, unsigned int height);
 
  void getImage(vpImage<vpRGBa> &I);
  unsigned int getScreenHeight();
  void getScreenSize(unsigned int &width, unsigned int &height);
  unsigned int getScreenWidth();
 
  void init(vpImage<unsigned char> &I, int winx = -1, int winy = -1, const std::string &title = "");
  void init(vpImage<vpRGBa> &I, int winx = -1, int winy = -1, const std::string &title = "");
  void init(unsigned int width, unsigned int height, int winx = -1, int winy = -1, const std::string &title = "");
 
  void setFont(const std::string &fontname);
  void setDownScalingFactor(unsigned int scale)
  {
    window.setScale(scale);
    m_scale = scale;
  }
  void setDownScalingFactor(vpScaleType scaleType) { m_scaleType = scaleType; }
  void setTitle(const std::string &windowtitle);
  void setWindowPosition(int winx, int winy);
 
protected:
  void displayArrow(const vpImagePoint &ip1, const vpImagePoint &ip2, const vpColor &color = vpColor::white,
                    unsigned int w = 4, unsigned int h = 2, unsigned int thickness = 1);
 
  void displayCharString(const vpImagePoint &ip, const char *text, const vpColor &color = vpColor::green);
 
  void displayCircle(const vpImagePoint &center, unsigned int radius, const vpColor &color, bool fill = false,
                     unsigned int thickness = 1);
 
  void displayCross(const vpImagePoint &ip, unsigned int size, const vpColor &color, unsigned int thickness = 1);
 
  void displayDotLine(const vpImagePoint &ip1, const vpImagePoint &ip2, const vpColor &color,
                      unsigned int thickness = 1);
 
  void displayLine(const vpImagePoint &ip1, const vpImagePoint &ip2, const vpColor &color, unsigned int thickness = 1);
 
  void displayPoint(const vpImagePoint &ip, const vpColor &color, unsigned int thickness = 1);
 
  void displayRectangle(const vpImagePoint &topLeft, unsigned int width, unsigned int height, const vpColor &color,
                        bool fill = false, unsigned int thickness = 1);
  void displayRectangle(const vpImagePoint &topLeft, const vpImagePoint &bottomRight, const vpColor &color,
                        bool fill = false, unsigned int thickness = 1);
  void displayRectangle(const vpRect &rectangle, const vpColor &color, bool fill = false, unsigned int thickness = 1);
 
  bool getClick(bool blocking = true);
 
  bool getClick(vpImagePoint &ip, bool blocking = true);
 
  bool getClick(vpImagePoint &ip, vpMouseButton::vpMouseButtonType &button, bool blocking = true);
 
  bool getClickUp(vpImagePoint &ip, vpMouseButton::vpMouseButtonType &button, bool blocking = true);
  bool getKeyboardEvent(bool blocking = true);
  bool getKeyboardEvent(std::string &key, bool blocking);
  bool getPointerMotionEvent(vpImagePoint &ip);
  bool getPointerPosition(vpImagePoint &ip);
 
  void waitForInit();
};
#endif
#endif