SOL9 2.0 Samples

1 Screenshot

2 Source code

/*
 * VideoDeviceEnumerator.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


//2017/07/25
//This is a simple example to capture videoDevice, and to display the capturued frames 
//to original imageview and blurred image view based on cv::boxFiter.

#define _CONSOLE_

//#define STRSAFE_LIB
#include <sol/com/ApartmentThreadedModel.h>
#include <sol/ModuleFileName.h>
#include <sol/LabeledTrackBar.h>
#include <sol/PushButton.h>
#include <sol/FileDialog.h>
#include <sol/directshow/LabeledVideoDeviceComboBox.h>

#include <sol/opencv/OpenCVVideoApplication.h>
#include <sol/opencv/OpenCVVideoCaptureView.h>
#include <sol/opencv/OpenCVNamedWindow.h>


namespace SOL {

class MainView :public OpenCVVideoCaptureView {

private:
  ////////////////////////////////////////////////////////////////////////////////////////
  //Inner classes start.
  class OriginalImageView :public OpenCVNamedWindow {
  private:
    cv::Mat originalImage;
  public:  
    void display()
    {
      show(originalImage);
    }
    
  public:
    OriginalImageView(View* parent, const char* name, Args& args)
    :OpenCVNamedWindow(parent, name, args)
    {
    }

    void setImage(cv::Mat& image)
    {
      originalImage = image;
    }
  };
  
  //Inner classes end.
  ////////////////////////////////////////////////////////////////////////////////////////
  
    
  SmartPtr<OriginalImageView>           originalImage;
  SmartPtr<LabeledVideoDeviceComboBox>  videoDeviceComboBox;
  SmartPtr<PushButton>                  startButton;
  SmartPtr<PushButton>                  endButton;
  
  static const int                      CONTROLPANE_WIDTH = 200;
  
  void resize(int w, int h)
  {
    if (originalImage ) {
      
      originalImage   -> reshape(0, 0,  w-CONTROLPANE_WIDTH-5,  h);
      videoDeviceComboBox -> reshape(w-CONTROLPANE_WIDTH+5, 0,   180, 40);
      startButton         -> reshape(w-CONTROLPANE_WIDTH+30, 60,  120, 30);
      endButton           -> reshape(w-CONTROLPANE_WIDTH+30, 100, 120, 30);
    }
  }

  void confirm(Action& action)
  {
    int rc = MessageBox(NULL, "Are you sure to close this window?", "Confirmation", 
                MB_OKCANCEL|MB_ICONEXCLAMATION);
    if (rc == IDOK) {
      exit(action);
    }
  }
  
public:
  MainView(OpenCVVideoApplication& applet, const char* name, Args& args)
  :OpenCVVideoCaptureView(applet, name, args)
  {
    try {
      Args ar;
      originalImage = new OriginalImageView(this, "cvwindow1", ar); 
      
      ar.reset();
      ar.reset();
      ar.set(XmNstyle, CBS_DROPDOWNLIST);
      videoDeviceComboBox = new LabeledVideoDeviceComboBox(this, "VideoDevice", ar);
      videoDeviceComboBox->addCallback(XmNselChangeCallback, this,
        (Callback)&MainView::selChangeCallback, NULL);
      
      ar.reset();
      startButton = new PushButton(this, "Start Caputure", ar);
      startButton->addCallback(XmNactivateCallback, this,
          (Callback)&MainView::startCapture, NULL);
      startButton->disable();
      
      ar.reset();
      endButton = new PushButton(this, "End Capture", ar);
      endButton -> addCallback(XmNactivateCallback, this,
          (Callback)&MainView::endCapture, NULL);   
      endButton->disable();
      
      addCallback(XmNmenuCallback, IDM_EXIT, this,
          (Callback)&MainView::confirm, NULL);
      
    } catch (Exception& ex) {
      caught(ex);
    }
  }

  ~MainView()
  {
  }

  void selChangeCallback(Action& action)
  {
    int deviceIndex = videoDeviceComboBox->getCurSel();
    if (deviceIndex >=0) {
      startButton->enable();
    }
  }
  
  void startCapture(Action& action)
  {
    try {
      
      int deviceIndex = videoDeviceComboBox->getCurSel();
      if (deviceIndex >=0) {
        String  name;
        videoDeviceComboBox->getString(deviceIndex, name);
        char message[1024];
        sprintf_s(message, CountOf(message), 
            "Are you sure to open device (%d):%s", deviceIndex,
            (const char*)name);
        if (MessageBoxA(NULL, message, "Device", MB_OKCANCEL) == IDOK) {
          openDevice(deviceIndex);
          endButton->enable();
        }
      }
    } catch (SOL::Exception& ex) {
      caught(ex);
    }
  }

  void endCapture(Action& action)
  {
    stopCapture(action);
    endButton->disable();
  }
  
  //This method will be called from the event loop OpenCVVideoCaptureApplition::run.
  virtual void render()
  {
    cv::Mat frame;
    if (readVideoFrame(frame)) {
      if (!frame.empty() && originalImage) {
        originalImage -> setImage(frame);
        originalImage -> display();
      }
    }
  }
};
}


void main(int argc, char** argv) 
{
  try {
    ModuleFileName module(argv[0]);
    //For VideoInputDeviceEnumerator class
    ApartmentThreadedModel model;
    
    const char*  name = module.getAppName();
    int delay = 40; //40 milliseconds
    OpenCVVideoApplication applet(name, argc, argv, delay);

    Args args;
    args.set(XmNwidth,     700);
    args.set(XmNheight,    420);
    args.set(XmNvideoDeviceIndex, 0);
    args.set(XmNcaptureAutoStart, false);
    MainView view(applet, name, args);
    view.realize();

    applet.run(view);
    
  } catch (SOL::Exception& ex) {
    caught(ex);
  }
}