www.pudn.com > DlgScrSaver.rar > saverdlg.cpp

// Saverdlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "collect.h" 
#include "DlgScrSaver.h" 
#include "drawwnd.h" 
#include "Saverdlg.h" 
 
#ifdef _DEBUG 
#undef THIS_FILE 
static char BASED_CODE 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 
 
// Implementation 
protected: 
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support 
	//{{AFX_MSG(CAboutDlg) 
	virtual BOOL OnInitDialog(); 
	//}}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() 
 
///////////////////////////////////////////////////////////////////////////// 
// CAboutDlg message handlers 
 
BOOL CAboutDlg::OnInitDialog() 
{ 
	CDialog::OnInitDialog(); 
	CenterWindow(); 
	 
	// TODO: Add extra about dlg initialization here 
	 
	return TRUE;  // return TRUE  unless you set the focus to a control 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSaverDlg dialog 
 
CSaverDlg::CSaverDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CSaverDlg::IDD, pParent), m_wndPreview(FALSE) 
{ 
	//{{AFX_DATA_INIT(CSaverDlg) 
	BitmapPath = _T(""); 
	m_nSpeed = 0; 
	//}}AFX_DATA_INIT 
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 
} 
 
void CSaverDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CSaverDlg) 
	DDX_Control(pDX, IDC_SCROLLBAR_SPEED, m_scrollSpeed); 
	DDX_Text(pDX, IDC_EDIT_BITMAPPATH, BitmapPath); 
	DDX_Scroll(pDX, IDC_SCROLLBAR_SPEED, m_nSpeed); 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CSaverDlg, CDialog) 
	//{{AFX_MSG_MAP(CSaverDlg) 
	ON_WM_SYSCOMMAND() 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	ON_WM_HSCROLL() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CSaverDlg message handlers 
 
BOOL CSaverDlg::OnInitDialog() 
{ 
	CDialog::OnInitDialog(); 
 
	CRect rect; 
	GetDlgItem(IDC_PREVIEW)->GetWindowRect(&rect); 
	ScreenToClient(&rect); 
	m_wndPreview.Create(NULL, WS_VISIBLE|WS_CHILD, rect, this, NULL); 
	m_wndPreview.SetSpeed(m_nSpeed); 
 
	m_scrollSpeed.SetScrollRange(1, 100); 
	m_scrollSpeed.SetScrollPos(m_nSpeed); 
 
 
	CenterWindow(); 
 
	// 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); 
	CString strAboutMenu; 
	strAboutMenu.LoadString(IDS_ABOUTBOX); 
	if (!strAboutMenu.IsEmpty()) 
	{ 
		pSysMenu->AppendMenu(MF_SEPARATOR); 
		pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 
	} 
	 
	// TODO: Add extra initialization here 
	 
	return TRUE;  // return TRUE  unless you set the focus to a control 
} 
 
void CSaverDlg::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 CSaverDlg::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 CSaverDlg::OnQueryDragIcon() 
{ 
	return (HCURSOR) m_hIcon; 
} 
 
void CSaverDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)  
{ 
	ASSERT(pScrollBar != NULL); 
	int nCurPos = pScrollBar->GetScrollPos(); 
	switch (nSBCode) 
	{ 
	case SB_LEFT: //    Scroll to far left. 
		nCurPos = 1; 
		break; 
	case SB_LINELEFT: //    Scroll left. 
		nCurPos--; 
		break; 
	case SB_LINERIGHT: //    Scroll right. 
		nCurPos++; 
		break; 
	case SB_PAGELEFT: //    Scroll one page left. 
		nCurPos -= 10; 
		break; 
	case SB_PAGERIGHT: //    Scroll one page right. 
		nCurPos += 10; 
		break; 
	case SB_RIGHT: //    Scroll to far right. 
		nCurPos = 100; 
		break; 
	case SB_THUMBPOSITION: //    Scroll to absolute position. The current position is specified by the nPos parameter. 
	case SB_THUMBTRACK: //    Drag scroll box to specified position. The current position is specified by the nPos parameter. 
		nCurPos = nPos; 
	} 
	if (nCurPos < 1) 
		nCurPos = 1; 
	if (nCurPos > 100) 
		nCurPos = 100; 
	pScrollBar->SetScrollPos(nCurPos); 
 
	m_wndPreview.SetSpeed(m_scrollSpeed.GetScrollPos()); 
 
	CDialog::OnHScroll(nSBCode, nPos, pScrollBar); 
}