bitmappicture.cpp

实时监控

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//  CBitmapPicture (Implementations) Version 1.00
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//  COPYFREE (F) - ALL RIGHTS FREE
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// BitmapPicture.cpp: implementation of the CBitmapPicture class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "../Resource.h"
#include "BitmapPicture.h"
#include "common.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

#define HIMETRIC_INCH 2540
#define ERROR_TITLE IDString(IDS_BITMAP_ERROR) // Error Title (Related To This Class)...

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CBitmapPicture::CBitmapPicture()
{
	m_IPicture = NULL;
	m_Height = 0;
	m_Weight = 0;
	m_Width = 0;
}

CBitmapPicture::~CBitmapPicture()
{
	if(m_IPicture != NULL) FreePictureData(); // Important - Avoid Leaks...
}

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// PUBLIC
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------

// Does:   Open a Resource And Load It Into IPicture (Interface)
// ~~~~    (.BMP .DIB .EMF .GIF .ICO .JPG .WMF)
//
// Note:   When Adding a Bitmap Resource It Would Automatically Show On "Bitmap"
// ~~~~    This NOT Good Coz We Need To Load It From a Custom Resource "BMP"
//         To Add a Custom Rresource: Import Resource -> Open As -> Custom
//         (Both .BMP And .DIB Should Be Found Under "BMP")
//
// InPut:  ResourceName - As a UINT Defined (Example: IDR_PICTURE_RESOURCE)
// ~~~~~   ResourceType - Type Name (Example: "JPG")
//
// OutPut: TRUE If Succeeded...
// ~~~~~~
// Author: Dr. Yovav Gad, EMail: [e-mail] ,Web: www.SuperMain.com
//=============================================================================
//-----------------------------------------------------------------------------
BOOL CBitmapPicture::Load(UINT ResourceName, CString ResourceType)
//=============================================================================
{
	//Free Bitmap if allocated
	DeleteObject();

	BOOL bResult = FALSE;

	HGLOBAL		hGlobal = NULL;
	HRSRC		hSource = NULL;
	LPVOID		lpVoid  = NULL;
	int			nSize   = 0;

	if(m_IPicture != NULL) FreePictureData(); // Important - Avoid Leaks...

	if(ResourceType==_T("BMP"))
		return LoadStandardResource(ResourceName,ResourceType);

	if(!hSource) hSource = FindResource(AfxGetResourceHandle(), MAKEINTRESOURCE(ResourceName), ResourceType);

	if(hSource == NULL)
		{
		HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
		MessageBoxEx(hWnd, _T("FindResource() Failed\t"), ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
		return(FALSE);
		}

	hGlobal = LoadResource(AfxGetResourceHandle(), hSource);
	if(hGlobal == NULL)
		{
		HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
		MessageBoxEx(hWnd, _T("LoadResource() Failed\t"), ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
		return(FALSE);
		}

	lpVoid = LockResource(hGlobal);
	if(lpVoid == NULL)
		{
		HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
		MessageBoxEx(hWnd, _T("LockResource() Failed\t"), ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
		return(FALSE);
		}

	nSize = (UINT)SizeofResource(AfxGetResourceHandle(), hSource);
	if(LoadPictureData((BYTE*)hGlobal, nSize)) bResult = TRUE;

	UnlockResource(hGlobal); // 16Bit Windows Needs This
	FreeResource(hGlobal); // 16Bit Windows Needs This (32Bit - Automatic Release)

	m_Weight = nSize; // Update Picture Size Info...

	if(m_IPicture != NULL) // Do Not Try To Read From Memory That Is Not Exist...
		{ 
		m_IPicture->get_Height(&m_Height);
		m_IPicture->get_Width(&m_Width);
	    // Calculate Its Size On a "Standard" (96 DPI) Device Context
	    m_Height = MulDiv(m_Height, 96, HIMETRIC_INCH);
	    m_Width  = MulDiv(m_Width,  96, HIMETRIC_INCH);
		}
	else // Picture Data Is Not a Known Picture Type
		{
		m_Height = 0;
		m_Width = 0;
		bResult = FALSE;
		}

	if(bResult) return(CreatePanoramaBitmap());
	else return(bResult);
}

//-----------------------------------------------------------------------------
// Does:   Open a File And Load It Into IPicture (Interface)
// ~~~~    (.BMP .DIB .EMF .GIF .ICO .JPG .WMF)
//
// InPut:  sFilePathName - Path And FileName Target To Save
// ~~~~~   
//
// OutPut: TRUE If Succeeded...
// ~~~~~~
// Author: Dr. Yovav Gad, EMail: [e-mail] ,Web: www.SuperMain.com
//=============================================================================
//-----------------------------------------------------------------------------
BOOL CBitmapPicture::Load(CString sFilePathName)
//=============================================================================
{
	//Free Bitmap if allocated
	DeleteObject();

	BOOL bResult = FALSE;
	CFile PictureFile;
	CFileException e;
	int	nSize = 0;

	if(m_IPicture != NULL) FreePictureData(); // Important - Avoid Leaks...

	if(PictureFile.Open(sFilePathName, CFile::modeRead | CFile::typeBinary, &e))
		{
		nSize = PictureFile.GetLength();
		BYTE* pBuffer = new BYTE[nSize];
	
		if(PictureFile.Read(pBuffer, nSize) > 0)
			{
			if(LoadPictureData(pBuffer, nSize))	bResult = TRUE;
			}

		PictureFile.Close();
		delete [] pBuffer;
		}
	else // Open Failed...
		{
		TCHAR szCause[255];
		e.GetErrorMessage(szCause, 255, NULL);
		HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
		MessageBoxEx(hWnd, szCause, ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
		bResult = FALSE;
		}

	m_Weight = nSize; // Update Picture Size Info...

	if(m_IPicture != NULL) // Do Not Try To Read From Memory That Is Not Exist...
		{ 
		m_IPicture->get_Height(&m_Height);
		m_IPicture->get_Width(&m_Width);
	    // Calculate Its Size On a "Standard" (96 DPI) Device Context
	    m_Height = MulDiv(m_Height, 96, HIMETRIC_INCH);
	    m_Width  = MulDiv(m_Width,  96, HIMETRIC_INCH);
		}
	else // Picture Data Is Not a Known Picture Type
		{
		m_Height = 0;
		m_Width = 0;
		bResult = FALSE;
		}

	if(bResult) return(CreatePanoramaBitmap());
	else return(bResult);
}

BOOL CBitmapPicture::SelectFileAndLoad()
{
	 CString DefExt = _T("jpg");
	 DWORD dwFlags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
	 CString Filter = _T("All Supported Image files|*.jpg;*.jif;*.jpeg;*.gif;*.bmp;*.dib;|JPG - JFIF Compliant (*.jpg,*.jif,*.jpeg)|*.jpg;*.jif,*.jpg|CompuServe Graphics Interchange (*.gif)|*.gif|Windows or OS/2 Bitmap (*.bmp)|*.bmp|Windows or OS/2 DIB (*.dib)|*.dib||");
	 CFileDialog FileDialog(TRUE,DefExt,NULL,dwFlags,Filter,NULL);
	 if(FileDialog.DoModal()==IDOK)
	 {
		return Load(FileDialog.GetPathName());
	 }

	return FALSE;
}

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// PRIVATE
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// Does:   Free The Allocated Memory That Holdes The IPicture Interface Data
// ~~~~    And Clear Picture Information
//
// Note:   This Might Also Be Useful If U Only Need To Show The Picture Once
// ~~~~~   Or If U Copy The Picture To The Device Context, So It Can Still
//         Remain On Screen - But IPicture Data Is Not Needed No More
//