testdlg.cpp

将一张图片切割成任意大小的小图片,经测试数据正确无误

				flag++;
			}
			//修改最后一个文件的的宽度
			header[18] = (unsigned char)(num1 & 0x000000ff);
			header[19] = (unsigned char)((num1 >> 8) &0x000000ff);
			header[20] = (unsigned char)((num1 >> 16) &0x000000ff);
			header[21] = (unsigned char)((num1 >> 24) &0x000000ff);
			
			file_size = (num1) * (num2)*2+Headsize;//修改文件大小
			//修改文件大小
			header[2] = (unsigned char)(file_size &0x000000ff);
			header[3] = (unsigned char)((file_size >> 8) & 0x000000ff);
			header[4] = (unsigned char)((file_size >> 16) & 0x000000ff);
			header[5] = (unsigned char)((file_size >> 24) & 0x000000ff);
			
			printf("flag=%d\n",flag);
			fseek(fp[flag_num-1],0,SEEK_SET);
			fwrite(header, sizeof(unsigned char), Headsize, fp[flag_num-1]);
			
		//	flag=temp2;
				flag=0;
			for(temp2=0;temp2<rol_num-1;temp2++)
			{
				if(width_old%width)
					break;
				for (i=0;i<height;i++)		//写一排小屏幕的数据
					{	
						for(temp1=0;temp1<cow_num-1;temp1++)
						{	
							
							fwrite(image, sizeof(unsigned char), width*2, fp[flag]);		//BMP图片数据信息的填写
							image=image+width*2;
							flag++;

						}
						fwrite(image, sizeof(unsigned char), num1*2, fp[flag]);		//BMP图片数据信息的填写
						image=image+num1*2;
						flag=flag-(cow_num-1);
					}
				flag=flag+cow_num;
			}
			flag=flag_num-cow_num;
			for(i=0;i<num2;i++)
			{
				for(temp1=0;temp1<cow_num-1;temp1++)
				{	
					fwrite(image, sizeof(unsigned char), width*2, fp[flag]);		//BMP图片数据信息的填写
					image=image+width*2;
					flag++;
				}
				fwrite(image, sizeof(unsigned char), num1*2, fp[flag]);		//BMP图片数据信息的填写
				image=image+num1*2;
				flag=flag-(cow_num-1);
			}
		}
	}
	
for(flag=0;flag<flag_num;flag++)	
{
	fclose(fp[flag]);			//关闭文件指针;
}
	return 0;
}



/////////////////////////////////////////////////////////////////////////////
// CTestDlg dialog


CTestDlg::CTestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTestDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_bIsCreated=FALSE;
	num1=0;
	num2=0;
}


void CTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CTestDlg, CDialog)
	//{{AFX_MSG_MAP(CTestDlg)
	ON_BN_CLICKED(IDC_BTN_ADD, OnBtnAdd)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
	ON_BN_CLICKED(IDC_BTN_CHANGE, OnBtnChange)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestDlg message handlers

void CTestDlg::OnBtnAdd() 
{
	// TODO: Add your control notification handler code here

//	int num1,num2;
	
//	itoa(num3,ch3,10);
//	SetDlgItemText(IDC_EDIT3,ch3); 
/*	char ch1[10],ch2[10];
	GetDlgItemText(IDC_EDIT1,ch1,10); 
	GetDlgItemText(IDC_EDIT2,ch2,10);
	num1=atoi(ch1);
	num2=atoi(ch2);
	
	LoadBitmapFile("0913.bmp",10,20,AfxGetMainWnd()->GetSafeHwnd());*/
	CFileDialog filedlg(TRUE);
	filedlg.m_ofn.lpstrTitle="打开图片";
	filedlg.m_ofn.lpstrFilter="bmp Files(*.bmp)\0*.bmp\0ALL File(*.*)\0*.*\0\0";

	if(IDOK==filedlg.DoModal())
	{
		LoadBitmapFile(filedlg.GetFileName().GetBuffer(NULL),10,25,AfxGetMainWnd()->GetSafeHwnd());
	//	LoadBitmapFile("1007_0.bmp",10,20,AfxGetMainWnd()->GetSafeHwnd());
	}	
	
}

void CTestDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	CString str;
	if(GetDlgItemText(IDC_BUTTON1,str),str=="扩展>>")
	{
		SetDlgItemText(IDC_BUTTON1,"收缩<<");
	}
	else
	{
		SetDlgItemText(IDC_BUTTON1,"扩展>>");
	}
	static CRect rectLarge;
	static CRect rectSmall;
	if(rectLarge.IsRectNull())
	{
		CRect rectSeparator;
		GetWindowRect(&rectLarge);
		GetDlgItem(IDC_SEPERATOR)->GetWindowRect(&rectSeparator);

		rectSmall.left=rectLarge.left;
		rectSmall.top=rectLarge.top;
		rectSmall.right=rectLarge.right;
		rectSmall.bottom=rectSeparator.bottom;
	}
	if(str=="收缩<<")
	{
		SetWindowPos(NULL,0,0,rectSmall.Width(),rectSmall.Height(),SWP_NOMOVE|SWP_NOZORDER);

	}
	if(str=="扩展>>")
	{
		SetWindowPos(NULL,0,0,rectLarge.Width(),rectLarge.Height(),SWP_NOMOVE|SWP_NOZORDER);

	}
}

void CTestDlg::OnOK() 
{
	// TODO: Add extra validation here
	
//	CDialog::OnOK();
}

void CTestDlg::OnChangeEdit1() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	
}
WNDPROC prevProc;
LRESULT CALLBACK NewEditProc
(
 HWND hwnd, 
 UINT uMsg,
 WPARAM wParam,
 LPARAM lParam
 )
{
	if(uMsg==WM_CHAR&&wParam==0x0d)
	{
		::SetFocus(GetWindow(hwnd,GW_HWNDNEXT));
		return 1;
	}
	else 
	{
		return prevProc(hwnd,uMsg,wParam,lParam);
	}
}
BOOL CTestDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	
	prevProc=(WNDPROC)SetWindowLong(GetDlgItem(IDC_EDIT1)->m_hWnd,GWL_WNDPROC,(LONG)NewEditProc);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CTestDlg::OnBtnChange() 
{
	// TODO: Add your control notification handler code here
	
	char ch1[10],ch2[10],ch3[10];

	unsigned char *image;

	GetDlgItemText(IDC_EDIT1,ch1,10); 
	GetDlgItemText(IDC_EDIT2,ch2,10);
	GetDlgItemText(IDC_EDIT5,ch3,10);
	num1=atoi(ch1);
	num2=atoi(ch2);
	
	BITMAP *bm_new;
//	bm_new=LoadBitmapFile("0913.bmp",10,20,AfxGetMainWnd()->GetSafeHwnd());
//	num3=(bm_new->bmWidth/num1)*(bm_new->bmHeight/num2);
	
	m=num1;			//将对话框里面宽数据取出来
	n=num2;			//将对话框里面,用户需要的位图高数据取出来
	
	// image=bmp_read("0913");
	 
	 image=bmp_read(ch3);
	 bmp_write(image);
	 char local_fname[128];
	 int k=cow_num;
		
	 int position_x=10,position_y=height_old;

	 for(--flag_num;flag_num>=0;flag_num--)
	 {
		sprintf(local_fname, "%s_%d.bmp", "1007",flag_num);
	
			if(k==1)
			{
			if((height_old%n)&&(rol_num>height_old/n))
				{
					position_x=10+num1+5;
					LoadBitmapFile(local_fname,position_x,position_y,AfxGetMainWnd()->GetSafeHwnd());
					k=cow_num;
					rol_num--;
					position_y+=height_old%n+5;
					continue;
				}
				position_x=10+num1+5;
				LoadBitmapFile(local_fname,position_x,position_y,AfxGetMainWnd()->GetSafeHwnd());
				rol_num--;
				k=cow_num;
				position_y+=num2+5;
			
				continue;
			}	
	
		position_x=10+k*(num1+5);
		LoadBitmapFile(local_fname,position_x,position_y,AfxGetMainWnd()->GetSafeHwnd());
		k=k-1;
	  }


}