图形图像处理

开发平台：
Visual C++

DlgMosaicRes.cpp：源码内容
							// DlgMosaicRes.cpp : implementation file
//
#include "stdafx.h"
#include "ImageProcessing.h"
#include "DlgMosaicRes.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CDlgMosaicRes dialog
CDlgMosaicRes::CDlgMosaicRes(CWnd* pParent /*=NULL*/,CDib* pDibShow)
	: CDialog(CDlgMosaicRes::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlgMosaicRes)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_pDib = pDibShow;
	m_bCalImgLoc =	FALSE;
}
void CDlgMosaicRes::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlgMosaicRes)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDlgMosaicRes, CDialog)
	//{{AFX_MSG_MAP(CDlgMosaicRes)
	ON_WM_PAINT()
	ON_BN_CLICKED(IDC_SAVE_AS, OnSaveAs)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDlgMosaicRes message handlers
void CDlgMosaicRes::OnPaint() 
{
	 // device context for painting
	
	// TODO: Add your message handler code here
    CPaintDC dc(this);
	if(!m_bCalImgLoc)
		CalImgLocation();
	CSize sizeDisplay;
	CPoint pointDisplay;
	if(m_pDib != NULL){
		if(!m_pDib->IsEmpty()){
			sizeDisplay.cx=m_pDib->m_lpBMIH->biWidth;
			sizeDisplay.cy=m_pDib->m_lpBMIH->biHeight;
			pointDisplay.x = m_rectImage.left;
			pointDisplay.y = m_rectImage.top;
			m_pDib->Draw(&dc,pointDisplay,sizeDisplay);	
		}
	}
	
	// Do not call CDialog::OnPaint() for painting messages
}
void CDlgMosaicRes::CalImgLocation()
{
	CWnd* pWnd=GetDlgItem(IDC_BMP);
	WINDOWPLACEMENT *winPlacement;
	winPlacement=new WINDOWPLACEMENT;
	pWnd->GetWindowPlacement(winPlacement);
	// 图象宽度
	int nImageWidth = 0;
	
	// 图象高度
	int nImageHeight = 0;
	if(m_pDib != NULL){
		nImageWidth = m_pDib->m_lpBMIH->biWidth;
		nImageHeight = m_pDib->m_lpBMIH->biHeight;
	}	
	
	// 调整控件IDC_REG_INIT_IMAGE的大小位置，并同时设置显示基准图象的位置
	if(nImageHeight > 352){		
		winPlacement->rcNormalPosition.bottom = winPlacement->rcNormalPosition.top + nImageHeight;	
		m_rectImage.bottom = winPlacement->rcNormalPosition.bottom;
		m_rectImage.top    = winPlacement->rcNormalPosition.top;		
	}
	else{
		winPlacement->rcNormalPosition.bottom = winPlacement->rcNormalPosition.top + 352;
		m_rectImage.bottom = winPlacement->rcNormalPosition.top + 176 + nImageHeight/2;
		m_rectImage.top    = winPlacement->rcNormalPosition.top + 176 - nImageHeight/2;
	}
	if(nImageWidth > 288){
		winPlacement->rcNormalPosition.right = winPlacement->rcNormalPosition.left + nImageWidth;
		m_rectImage.right = winPlacement->rcNormalPosition.right;
		m_rectImage.left  = winPlacement->rcNormalPosition.left;			
	}
	else{
		winPlacement->rcNormalPosition.right = winPlacement->rcNormalPosition.left + 288;
		m_rectImage.right = winPlacement->rcNormalPosition.left + 144 + nImageWidth/2;
		m_rectImage.left  = winPlacement->rcNormalPosition.left + 144 - nImageWidth/2;
	}
	
	// 设置IDC_DlgAftReg_IMAGE控件的大小位置
	pWnd->SetWindowPlacement(winPlacement);	
	// 获得IDC_DlgAftReg_IMAGE控件的下边位置，以便调整其他控件的位置
	int nIniImgBottom, nIniImgRight,nIniImgLeft;
	nIniImgBottom = winPlacement->rcNormalPosition.bottom;
	nIniImgLeft   = winPlacement->rcNormalPosition.left;
	nIniImgRight  = winPlacement->rcNormalPosition.right;
	// 设置控件IDOK的位置大小
	pWnd=GetDlgItem(IDOK);
	pWnd->GetWindowPlacement(winPlacement);
	winPlacement->rcNormalPosition.top = nIniImgBottom +15;
	winPlacement->rcNormalPosition.bottom = nIniImgBottom + 60;
	pWnd->SetWindowPlacement(winPlacement);
	
	// 设置控件IDCANCEL的位置大小
	pWnd=GetDlgItem(IDC_SAVE_AS);
	pWnd->GetWindowPlacement(winPlacement);
	winPlacement->rcNormalPosition.top = nIniImgBottom +15;
	winPlacement->rcNormalPosition.bottom = nIniImgBottom + 60;
	pWnd->SetWindowPlacement(winPlacement);
	
	
	this->GetWindowPlacement(winPlacement);
	winPlacement->rcNormalPosition.bottom = nIniImgBottom + 60+ 70;
	winPlacement->rcNormalPosition.left   = nIniImgLeft   - 20;
	winPlacement->rcNormalPosition.right  = nIniImgRight  + 20;
	this->SetWindowPlacement(winPlacement);
	m_bCalImgLoc = TRUE;
	
	// 释放已分配内存
	delete winPlacement;	
}
void CDlgMosaicRes::OnSaveAs() 
{
	// TODO: Add your control notification handler code here
	
	CString strSaveFileType = "位图文件 (*.bmp;*.dib)|*.bmp; *.dib|All Files (*.*)|*.*||";
	CFileDialog FileDlg(FALSE, "*.bmp", NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, strSaveFileType);
	CFile fileOpen ;
	if( FileDlg.DoModal() == IDOK ) {
		if(!fileOpen.Open( FileDlg.GetPathName() , CFile::modeCreate|CFile::modeWrite )){
			AfxMessageBox("cannot create the file to save");
			return;
		}
		if( !m_pDib->Write( &fileOpen ) ){
			return;
		}
		fileOpen.Close();
	}
}

						