unibtndlg.cpp

mfc编程小实例二

// UniBtnDlg.cpp : implementation file
//

#include "stdafx.h"
#include "UniBtn.h"
#include "UniBtnDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CUniBtnDlg dialog

CUniBtnDlg::CUniBtnDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CUniBtnDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUniBtnDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CUniBtnDlg, CDialog)
	//{{AFX_MSG_MAP(CUniBtnDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUniBtnDlg message handlers

BOOL CUniBtnDlg::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
	
	HRGN r; 

	r = CreateEllipticRgn(0, 0, 63, 31);
	m_Btn1.Create("Btn 1", WS_CHILD | WS_VISIBLE, CPoint(100, 15), r, this, UNI_BTN1, 2, GetSysColor(COLOR_BTNFACE), RGB(0, 255, 0), RGB(0, 255, 0), GetSysColor(COLOR_BTNFACE)); 
	DeleteObject(r);

	HDC hDC = CreateCompatibleDC(GetDC() -> GetSafeHdc());
	HRGN c;
	LOGFONT lf;
	GetFont() -> GetLogFont(&lf);
	lf.lfHeight = -128;
	lf.lfWeight = 1000;
	HFONT hFont = CreateFontIndirect(&lf);
	HFONT hOldFont = (HFONT) SelectObject(hDC, hFont);
	c = CreateRectRgn(0, 0, 0, 0);

	int mode = SetBkMode(hDC, TRANSPARENT);
	BeginPath(hDC);
	TextOut(hDC, 0, 0, "$", 1);
	EndPath(hDC);
	c = PathToRegion(hDC);
	SetBkMode(hDC, mode);

	m_Btn2.Create("", WS_CHILD | WS_VISIBLE, CPoint(15, 15), c, this, UNI_BTN2, RGB(255, 255, 0));

	SelectObject(hDC, hOldFont);
	DeleteObject(hFont);
	DeleteObject(c);

	HRGN cr;

	HRGN r1;
	HRGN r2;
	BeginPath(hDC);
	MoveToEx(hDC, 0, 32, NULL);
	LineTo(hDC, 48, 32);
	LineTo(hDC, 48, 16);
	LineTo(hDC, 96, 48);
	LineTo(hDC, 48, 80);
	LineTo(hDC, 48, 64);
	LineTo(hDC, 0, 64);
	LineTo(hDC, 0, 32);
	EndPath(hDC);
	cr = CreateRectRgn(0, 0, 63, 63);
	cr = PathToRegion(hDC);
	m_Btn3.Create("Btn 3", WS_CHILD | WS_VISIBLE, CPoint(80, 50), cr, this, UNI_BTN3, 2, RGB(250, 207, 194), RGB(255, 0, 0), RGB(255, 0, 0), GetSysColor(COLOR_BTNFACE)); 

	DeleteObject(cr);
	DeleteObject(hDC);

	hDC = CreateCompatibleDC(GetDC() -> GetSafeHdc());
	BeginPath(hDC);
	MoveToEx(hDC, 31, 15, NULL);
	CPoint p[7];
	p[ 0] = CPoint(5, 0);
	p[ 1] = CPoint(0, 55);
	p[ 2] = CPoint(0, 28);
	p[ 3] = CPoint(31, 64);
	p[ 4] = CPoint(59, 55);
	p[ 5] = CPoint(59, 0);
	p[ 6] = CPoint(31, 15);

	PolyBezier(hDC, &p[0], 7);
	EndPath(hDC);
	cr = CreateRectRgn(0, 0, 63, 63);
	cr = PathToRegion(hDC);
	m_Btn4.Create("Btn 4", WS_CHILD | WS_VISIBLE, CPoint(200, 10), cr, this, UNI_BTN4, 2, RGB(151, 244, 219), RGB(211, 247, 254), RGB(211, 247, 254), GetSysColor(COLOR_BTNFACE)); 

	DeleteObject(cr);
	DeleteObject(hDC);

	c = CreateRectRgn(16, 0, 80, 31);
	r1 = CreateEllipticRgn(0, 0, 32, 32);
	r2 = CreateEllipticRgn(64, 0, 96, 32);
	CombineRgn(c, c, r1, RGN_OR);
	CombineRgn(c, c, r2, RGN_OR);
	m_Btn5.Create("Btn 5", WS_CHILD | WS_VISIBLE, CPoint(180, 80), c, this, UNI_BTN5, 2, GetSysColor(COLOR_BTNFACE), RGB(211, 247, 254), RGB(211, 247, 254), GetSysColor(COLOR_BTNFACE)); 
	DeleteObject(c);
	DeleteObject(r1);
	DeleteObject(r2);

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

void CUniBtnDlg::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 CUniBtnDlg::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 CUniBtnDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}