www.pudn.com > led.rar > DotMatrixDlg.cpp, change:2006-12-27,size:6893b


// DotMatrixDlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "DotMatrix.h" 
#include "DotMatrixDlg.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CAboutDlg dialog used for App About 
 
class CAboutDlg : public CDialog 
{ 
public: 
	CAboutDlg(); 
 
// Dialog Data 
	//{{AFX_DATA(CAboutDlg) 
	enum { IDD = IDD_ABOUTBOX }; 
	//}}AFX_DATA 
 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CAboutDlg) 
	protected: 
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support 
	//}}AFX_VIRTUAL 
 
// Implementation 
protected: 
	//{{AFX_MSG(CAboutDlg) 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
}; 
 
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 
{ 
	//{{AFX_DATA_INIT(CAboutDlg) 
	//}}AFX_DATA_INIT 
} 
 
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CAboutDlg) 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 
	//{{AFX_MSG_MAP(CAboutDlg) 
		// No message handlers 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CDotMatrixDlg dialog 
 
CDotMatrixDlg::CDotMatrixDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CDotMatrixDlg::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CDotMatrixDlg) 
	m_text = _T(""); 
	//}}AFX_DATA_INIT 
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 
} 
 
void CDotMatrixDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CDotMatrixDlg) 
	DDX_Text(pDX, IDC_EDIT1, m_text); 
	DDV_MaxChars(pDX, m_text, 2); 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CDotMatrixDlg, CDialog) 
	//{{AFX_MSG_MAP(CDotMatrixDlg) 
	ON_WM_SYSCOMMAND() 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CDotMatrixDlg message handlers 
 
BOOL CDotMatrixDlg::OnInitDialog() 
{ 
	CDialog::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) 
	{ 
		CString strAboutMenu; 
		strAboutMenu.LoadString(IDS_ABOUTBOX); 
		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 
	 
	return TRUE;  // return TRUE  unless you set the focus to a control 
} 
 
void CDotMatrixDlg::OnSysCommand(UINT nID, LPARAM lParam) 
{ 
	if ((nID & 0xFFF0) == IDM_ABOUTBOX) 
	{ 
		CAboutDlg dlgAbout; 
		dlgAbout.DoModal(); 
	} 
	else 
	{ 
		CDialog::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 CDotMatrixDlg::OnPaint()  
{ 
	if (IsIconic()) 
	{ 
		CPaintDC dc(this); // device context for painting 
 
		SendMessage(WM_ICONERASEBKGND, (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(); 
	} 
} 
 
// The system calls this to obtain the cursor to display while the user drags 
//  the minimized window. 
HCURSOR CDotMatrixDlg::OnQueryDragIcon() 
{ 
	return (HCURSOR) m_hIcon; 
} 
 
/************************************************************* 
* 参数说明:	x,		绘制字符的起始位置 
*				y,		同上 
*				nChar,	要绘制的单个字符,可以是中文或者英文 
*				clr,	绘制字符用的颜色,在这个例子里我们没有 
*						编写对应的代码 
*************************************************************/ 
void CDotMatrixDlg::DrawChar(int x, int y, char *nChar, COLORREF clr) 
{ 
	register i,j,k;						// for quick loop 
 
	unsigned long location = 0;			// for chinese chars's location 
	unsigned char qh = 0, 
				  wh = 0;				 
	 
	int nGridStep = 8;					// step when draw big char 
 
	char *p_chs16 = "CHS16",			// 16*16 chinese dotmatrix lib 
		 *p_eng16 = "ASC16";			// 16*16 english dotmatrix lib 
 
	FILE *fp_chs16,						// file pointer to upon files 
		 *fp_eng16; 
 
	char nDot_chs16[32],				// 32B dotmatrix buffer 
		 nDot_eng16[16];				// 16B dotmatrix buffer 
 
 
	CClientDC dc(this); 
	 
	if(sizeof(*nChar) > 2)				// verify the length of nChar 
		return; 
	 
	// open the dotmatrix file 
	if(	(NULL == (fp_chs16 = fopen(p_chs16, "rb"))) |  
		(NULL == (fp_eng16 = fopen(p_eng16, "rb")))) 
	{ 
		return; 
	} 
 
	// clear data buffer 
	memset(nDot_chs16, 0, sizeof(nDot_chs16)); 
	memset(nDot_eng16, 0, sizeof(nDot_eng16)); 
 
	if((unsigned char)*nChar > 128)	 
	// draw chinese dotmatrix 
	{ 
		qh = *nChar - 0xA0; 
		wh = *(nChar + 1) - 0xA0; 
		location = (94 * (qh - 1) + (wh - 1)) * 32L;			// get the start position of current char's dot-matrix 
		fseek(fp_chs16, location, SEEK_SET);					// move file pointer to there 
		fread(nDot_chs16, sizeof(nDot_chs16), 1, fp_chs16);		// read the dot-matrix of current char. 
 
		for(i = 0; i < 16; i++) 
			for(j = 0; j < 2; j++) 
				for(k = 0; k < 8; k++) 
				{ 
					if(((nDot_chs16[i*2 + j] >> (7-k)) & 0x1) != NULL) 
					{ 
						dc.Ellipse(	(x + 8*j+k)*nGridStep, 
										(y+i)*nGridStep, 
										(x + 8*j+k+1)*nGridStep,  
										(y+i+1)*nGridStep); 
					} 
				} 
	} 
	else 
	// 8*16 english 
	{ 
		location = nChar[0] << 4 ;			// 16 byres each char in 5*8 english 
		fseek(fp_eng16, location, SEEK_SET); 
		fread(nDot_eng16, sizeof(nDot_eng16), 1, fp_eng16);	 
 
		for(i = 0; i < 16; i++) 
			for(k = 0; k < 8; k++) 
			{ 
				if(((nDot_eng16[i] >> (7-k)) & 0x1) != NULL) 
					dc.Ellipse(	(x + k)*nGridStep, 
									(y + i)*nGridStep, 
									(x + k + 1)*nGridStep,  
									(y + i + 1)*nGridStep); 
			} 
	} 
 
	fclose(fp_chs16);			// don't forget to close the files. 
	fclose(fp_eng16); 
 
} 
 
void CDotMatrixDlg::OnButton1()  
{ 
	// TODO: Add your control notification handler code here 
 
	RedrawWindow();		// clear pre-draws 
 
	UpdateData(TRUE);	// get the user inputs  
	DrawChar(5, 15, (LPSTR)(LPCTSTR)m_text, RGB(0, 0, 0)); 
}