mfcv

#pragma once
#ifndef CVVIMAGE_CLASS_DEF
#define CVVIMAGE_CLASS_DEF
#include "opencv2\\opencv.hpp"
/* CvvImage class definition */
class  CvvImage
{
public:
   CvvImage();
   virtual ~CvvImage();
   /* Create image (BGR or grayscale) */
   virtual bool  Create( int width, int height, int bits_per_pixel, int image_origin = 0 );
   /* Load image from specified file */
   virtual bool  Load( const char* filename, int desired_color = 1 );
   /* Load rectangle from the file */
   virtual bool  LoadRect( const char* filename,
      int desired_color, CvRect r );
#if defined WIN32 || defined _WIN32
   virtual bool  LoadRect( const char* filename,
      int desired_color, RECT r )
   {
      return LoadRect( filename, desired_color,
         cvRect( r.left, r.top, r.right - r.left, r.bottom - r.top ));
   }
#endif
   /* Save entire image to specified file. */
   virtual bool  Save( const char* filename );
   /* Get copy of input image ROI */
   virtual void  CopyOf( CvvImage& image, int desired_color = -1 );
   virtual void  CopyOf( IplImage* img, int desired_color = -1 );
   IplImage* GetImage() { return m_img; };
   virtual void  Destroy(void);
   /* width and height of ROI */
   int Width() { return !m_img ? 0 : !m_img->roi ? m_img->width : m_img->roi->width; };
   int Height() { return !m_img ? 0 : !m_img->roi ? m_img->height : m_img->roi->height;};
   int Bpp() { return m_img ? (m_img->depth & 255)*m_img->nChannels : 0; };
   virtual void  Fill( int color );
   /* draw to highgui window */
   virtual void  Show( const char* window );

#if defined WIN32 || defined _WIN32
   /* draw part of image to the specified DC */
   virtual void  Show( HDC dc, int x, int y, int width, int height,
      int from_x = 0, int from_y = 0 );
   /* draw the current image ROI to the specified rectangle of the destination DC */
   virtual void  DrawToHDC( HDC hDCDst, RECT* pDstRect );
#endif
protected:
   IplImage*  m_img;
};
typedef CvvImage CImage;
#endif

// mymfc.h : main header file for the PROJECT_NAME application
//

#pragma once

#ifndef __AFXWIN_H__
	#error "include 'stdafx.h' before including this file for PCH"
#endif

#include "resource.h"		// main symbols
#include "opencv\\cv.h"
#include "opencv\\highgui.h"
#include "CvvImage.h"

#define IMAGE_WIDTH 256
#define IMAGE_HEIGHT 256
#define IMAGE_CHANNELS 3
// CmymfcApp:
// See mymfc.cpp for the implementation of this class
//

class CmymfcApp : public CWinApp
{
public:
	CmymfcApp();

// Overrides
public:
	virtual BOOL InitInstance();

// Implementation

	DECLARE_MESSAGE_MAP()
};

extern CmymfcApp theApp;

// mymfcDlg.h : header file
//

#pragma once


// CmymfcDlg dialog
class CmymfcDlg : public CDialogEx
{
// Construction
public:
	CmymfcDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	enum { IDD = IDD_MYMFC_DIALOG };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support


// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	DECLARE_MESSAGE_MAP()
public:
	IplImage* TheImage;
	afx_msg void OnBnClickedButton1();
	// void ShowImage( IplImage* img, UINT controlID) 
	void ShowImage(IplImage* img , UINT controlID);
	// void ResizeImage(IplImage* img)
	void ResizeImage(IplImage* img);
};

#include "StdAfx.h"
#include "CvvImage.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CV_INLINE RECT NormalizeRect( RECT r );
CV_INLINE RECT NormalizeRect( RECT r )
{
   int t;
   if( r.left > r.right )
   {
      t = r.left;
      r.left = r.right;
      r.right = t;
   }
   if( r.top > r.bottom )
   {
      t = r.top;
      r.top = r.bottom;
      r.bottom = t;
   }

   return r;
}
CV_INLINE CvRect RectToCvRect( RECT sr );
CV_INLINE CvRect RectToCvRect( RECT sr )
{
   sr = NormalizeRect( sr );
   return cvRect( sr.left, sr.top, sr.right - sr.left, sr.bottom - sr.top );
}
CV_INLINE RECT CvRectToRect( CvRect sr );
CV_INLINE RECT CvRectToRect( CvRect sr )
{
   RECT dr;
   dr.left = sr.x;
   dr.top = sr.y;
   dr.right = sr.x + sr.width;
   dr.bottom = sr.y + sr.height;

   return dr;
}
CV_INLINE IplROI RectToROI( RECT r );
CV_INLINE IplROI RectToROI( RECT r )
{
   IplROI roi;
   r = NormalizeRect( r );
   roi.xOffset = r.left;
   roi.yOffset = r.top;
   roi.width = r.right - r.left;
   roi.height = r.bottom - r.top;
   roi.coi = 0;

   return roi;
}
void  FillBitmapInfo( BITMAPINFO* bmi, int width, int height, int bpp, int origin )
{
   assert( bmi && width >= 0 && height >= 0 && (bpp == 8 || bpp == 24 || bpp == 32));

   BITMAPINFOHEADER* bmih = &(bmi->bmiHeader);

   memset( bmih, 0, sizeof(*bmih));
   bmih->biSize = sizeof(BITMAPINFOHEADER);
   bmih->biWidth = width;
   bmih->biHeight = origin ? abs(height) : -abs(height);
   bmih->biPlanes = 1;
   bmih->biBitCount = (unsigned short)bpp;
   bmih->biCompression = BI_RGB;
   if( bpp == 8 )
   {
      RGBQUAD* palette = bmi->bmiColors;
      int i;
      for( i = 0; i < 256; i++ )
      {
         palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;
         palette[i].rgbReserved = 0;
      }
   }
}
CvvImage::CvvImage()
{
   m_img = 0;
}
void CvvImage::Destroy()
{
   cvReleaseImage( &m_img );
}
CvvImage::~CvvImage()
{
   Destroy();
}
bool  CvvImage::Create( int w, int h, int bpp, int origin )
{
   const unsigned max_img_size = 10000;

   if( (bpp != 8 && bpp != 24 && bpp != 32) ||
      (unsigned)w >=  max_img_size || (unsigned)h >= max_img_size ||
      (origin != IPL_ORIGIN_TL && origin != IPL_ORIGIN_BL))
   {
      assert(0); // most probably, it is a programming error
      return false;
   }
   if( !m_img || Bpp() != bpp || m_img->width != w || m_img->height != h )
   {
      if( m_img && m_img->nSize == sizeof(IplImage))
         Destroy();
      /* prepare IPL header */
      m_img = cvCreateImage( cvSize( w, h ), IPL_DEPTH_8U, bpp/8 );
   }
   if( m_img )
      m_img->origin = origin == 0 ? IPL_ORIGIN_TL : IPL_ORIGIN_BL;
   return m_img != 0;
}
void  CvvImage::CopyOf( CvvImage& image, int desired_color )
{
   IplImage* img = image.GetImage();
   if( img )
   {
      CopyOf( img, desired_color );
   }
}
#define HG_IS_IMAGE(img)\
   ((img) != 0 && ((const IplImage*)(img))->nSize == sizeof(IplImage) &&\
   ((IplImage*)img)->imageData != 0)
void  CvvImage::CopyOf( IplImage* img, int desired_color )
{
   if( HG_IS_IMAGE(img) )
   {
      int color = desired_color;
      CvSize size = cvGetSize( img );
      if( color < 0 )
         color = img->nChannels > 1;
      if( Create( size.width, size.height,
         (!color ? 1 : img->nChannels > 1 ? img->nChannels : 3)*8,
         img->origin ))
      {
         cvConvertImage( img, m_img, 0 );
      }
   }
}
bool  CvvImage::Load( const char* filename, int desired_color )
{
   IplImage* img = cvLoadImage( filename, desired_color );
   if( !img )
      return false;

   CopyOf( img, desired_color );
   cvReleaseImage( &img );

   return true;
}
bool  CvvImage::LoadRect( const char* filename,
                   int desired_color, CvRect r )
{
   if( r.width < 0 || r.height < 0 ) return false;

   IplImage* img = cvLoadImage( filename, desired_color );
   if( !img )
      return false;
   if( r.width == 0 || r.height == 0 )
   {
      r.width = img->width;
      r.height = img->height;
      r.x = r.y = 0;
   }
   if( r.x > img->width || r.y > img->height ||
      r.x + r.width < 0 || r.y + r.height < 0 )
   {
      cvReleaseImage( &img );
      return false;
   }
   /* truncate r to source image */
   if( r.x < 0 )
   {
      r.width += r.x;
      r.x = 0;
   }
   if( r.y < 0 )
   {
      r.height += r.y;
      r.y = 0;
   }
   if( r.x + r.width > img->width )
      r.width = img->width - r.x;

   if( r.y + r.height > img->height )
      r.height = img->height - r.y;
   cvSetImageROI( img, r );
   CopyOf( img, desired_color );
   cvReleaseImage( &img );
   return true;
}
bool  CvvImage::Save( const char* filename )
{
   if( !m_img )
      return false;
   cvSaveImage( filename, m_img );
   return true;
}
void  CvvImage::Show( const char* window )
{
   if( m_img )
      cvShowImage( window, m_img );
}
void  CvvImage::Show( HDC dc, int x, int y, int w, int h, int from_x, int from_y )
{
   if( m_img && m_img->depth == IPL_DEPTH_8U )
   {
      uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
      BITMAPINFO* bmi = (BITMAPINFO*)buffer;
      int bmp_w = m_img->width, bmp_h = m_img->height;
      FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
      from_x = MIN( MAX( from_x, 0 ), bmp_w - 1 );
      from_y = MIN( MAX( from_y, 0 ), bmp_h - 1 );
      int sw = MAX( MIN( bmp_w - from_x, w ), 0 );
      int sh = MAX( MIN( bmp_h - from_y, h ), 0 );
      SetDIBitsToDevice(
         dc, x, y, sw, sh, from_x, from_y, from_y, sh,
         m_img->imageData + from_y*m_img->widthStep,
         bmi, DIB_RGB_COLORS );
   }
}
void  CvvImage::DrawToHDC( HDC hDCDst, RECT* pDstRect )
{
   if( pDstRect && m_img && m_img->depth == IPL_DEPTH_8U && m_img->imageData )
   {
      uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
      BITMAPINFO* bmi = (BITMAPINFO*)buffer;
      int bmp_w = m_img->width, bmp_h = m_img->height;
      CvRect roi = cvGetImageROI( m_img );
      CvRect dst = RectToCvRect( *pDstRect );
      if( roi.width == dst.width && roi.height == dst.height )
      {
         Show( hDCDst, dst.x, dst.y, dst.width, dst.height, roi.x, roi.y );
         return;
      }
      if( roi.width > dst.width )
      {
         SetStretchBltMode(
            hDCDst,           // handle to device context
            HALFTONE );
      }
      else
      {
         SetStretchBltMode(
            hDCDst,           // handle to device context
            COLORONCOLOR );
      }
      FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
      ::StretchDIBits(
         hDCDst,
         dst.x, dst.y, dst.width, dst.height,
         roi.x, roi.y, roi.width, roi.height,
         m_img->imageData, bmi, DIB_RGB_COLORS, SRCCOPY );
   }
}
void  CvvImage::Fill( int color )
{
   cvSet( m_img, cvScalar(color&255,(color>>8)&255,(color>>16)&255,(color>>24)&255) );
}

#include "stdafx.h"
#include "mymfc.h"
#include "mymfcDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialogEx
{
public:
	CAboutDlg();

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CmymfcDlg dialog




CmymfcDlg::CmymfcDlg(CWnd* pParent /*=NULL*/)
	: CDialogEx(CmymfcDlg::IDD, pParent)
	, TheImage(NULL)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CmymfcDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CmymfcDlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, &CmymfcDlg::OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON2, &CmymfcDlg::OnBnClickedButton2)
END_MESSAGE_MAP()


// CmymfcDlg message handlers

BOOL CmymfcDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here
	CvSize ImgSize;
    ImgSize.height = IMAGE_HEIGHT;
    ImgSize.width = IMAGE_WIDTH;
    TheImage = cvCreateImage( ImgSize, IPL_DEPTH_8U, IMAGE_CHANNELS );

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CmymfcDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialogEx::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CmymfcDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();                    // 重绘对话框
        CDialog::UpdateWindow();                // 更新windows窗口，如果无这步调用，图片显示还会出现问题
        ShowImage( TheImage, IDC_ShowImg );    // 重绘图片函数

		CDialogEx::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CmymfcDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}



void CmymfcDlg::OnBnClickedButton1()
{
	// TODO: Add your control notification handler code here
	CFileDialog dlg(
        TRUE, _T("*.bmp"), NULL,
        OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY,
        _T("image files (*.bmp; *.jpg) |*.bmp; *.jpg | All Files (*.*) |*.*||"), NULL
        );                                        // 选项图片的约定
    dlg.m_ofn.lpstrTitle = _T("Open Image");    // 打开文件对话框的标题名
    if( dlg.DoModal() != IDOK )                    // 判断是否获得图片
        return;
    
    CString mPath = dlg.GetPathName();            // 获取图片路径

    IplImage* ipl = cvLoadImage( (LPCTSTR)mPath, 1 );    // 读取图片、缓存到一个局部变量 ipl 中
    if( !ipl )                                    // 判断是否成功载入图片
        return;
    if( TheImage )                                // 对上一幅显示的图片数据清零
        cvZero( TheImage );
    
    ResizeImage( ipl );    // 对读入的图片进行缩放，使其宽或高最大值者刚好等于 256，再复制到 TheImage 中
    ShowImage( TheImage, IDC_ShowImg );            // 调用显示图片函数    
    cvReleaseImage( &ipl );        
}


// void ShowImage( IplImage* img, UINT controlID) 
void CmymfcDlg::ShowImage(IplImage* img , UINT controlID)
{
	CDC* pDC = GetDlgItem( controlID ) ->GetDC();        // 获得显示控件的 DC
    HDC hDC = pDC ->GetSafeHdc();                // 获取 HDC(设备句柄) 来进行绘图操作

    CRect rect;
    GetDlgItem(controlID) ->GetClientRect( &rect );
    int rw = rect.right - rect.left;            // 求出图片控件的宽和高
    int rh = rect.bottom - rect.top;
    int iw = img->width;                        // 读取图片的宽和高
    int ih = img->height;
    int tx = (int)(rw - iw)/2;                    // 使图片的显示位置正好在控件的正中
    int ty = (int)(rh - ih)/2;
    SetRect( rect, tx, ty, tx+iw, ty+ih );

    CvvImage cimg;
    cimg.CopyOf( img );                            // 复制图片
    cimg.DrawToHDC( hDC, &rect );                // 将图片绘制到显示控件的指定区域内

    ReleaseDC( pDC );
}


// void ResizeImage(IplImage* img)
void CmymfcDlg::ResizeImage(IplImage* img)
{
	// 读取图片的宽和高
    int w = img->width;
    int h = img->height;

    // 找出宽和高中的较大值者
    int max = (w > h)? w: h;

    // 计算将图片缩放到TheImage区域所需的比例因子
    float scale = (float) ( (float) max / 256.0f );
    
    // 缩放后图片的宽和高
    int nw = (int)( w/scale );
    int nh = (int)( h/scale );

    // 为了将缩放后的图片存入 TheImage 的正中部位，需计算图片在 TheImage 左上角的期望坐标值
    int tlx = (nw > nh)? 0: (int)(256-nw)/2;
    int tly = (nw > nh)? (int)(256-nh)/2: 0;

    // 设置 TheImage 的 ROI 区域，用来存入图片 img
    cvSetImageROI( TheImage, cvRect( tlx, tly, nw, nh) );
    // 对图片 img 进行缩放，并存入到 TheImage 中
    cvResize( img, TheImage );
    // 重置 TheImage 的 ROI 准备读入下一幅图片
    cvResetImageROI( TheImage );
}


void CmymfcDlg::OnBnClickedButton2()
{
	// TODO: Add your control notification handler code here
IplImage *gray = 0, *edge = 0; 
gray = cvCreateImage( cvSize(IMAGE_WIDTH, IMAGE_HEIGHT), IPL_DEPTH_8U, 1 ); 
edge = cvCreateImage( cvSize(IMAGE_WIDTH, IMAGE_HEIGHT), IPL_DEPTH_8U, 1 ); 
cvCvtColor( TheImage, gray, CV_BGR2GRAY ); 
cvCanny( gray, edge, 30, 100, 3 ); 
cvCvtColor( edge, TheImage, CV_GRAY2BGR );   
ShowImage( TheImage, IDC_ShowImg );         

// 调用显示图片函数
cvReleaseImage( &gray ); 
cvReleaseImage( &edge );
}