exampledlg.cpp

来自「vc150例源码」· C++ 代码 · 共 229 行

// ExampleDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Example.h"
#include "ExampleDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CExampleDlg dialog

CExampleDlg::CExampleDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CExampleDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CExampleDlg)
		// 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 CExampleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CExampleDlg)
	DDX_Control(pDX, IDC_SLIDER1, m_Slider);
	DDX_Control(pDX, IDC_Prev, m_PrevButton);
	DDX_Control(pDX, IDC_Play, m_PlayButton);
	DDX_Control(pDX, IDC_Pause, m_PauseButton);
	DDX_Control(pDX, IDC_Open, m_OpenButton);
	DDX_Control(pDX, IDC_Next, m_NextButton);
	DDX_Control(pDX, IDC_EDIT1, m_FileName);
	DDX_Control(pDX, IDC_Close, m_CloseButton);
	DDX_Control(pDX, IDC_MMCONTROL1, m_Multimedia);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CExampleDlg, CDialog)
	//{{AFX_MSG_MAP(CExampleDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_Open, OnOpen)
	ON_BN_CLICKED(IDC_RADIO1, OnRadio1)
	ON_BN_CLICKED(IDC_RADIO2, OnRadio2)
	ON_BN_CLICKED(IDC_RADIO3, OnRadio3)
	ON_BN_CLICKED(IDC_RADIO4, OnRadio4)
	ON_BN_CLICKED(IDC_Play, OnPlay)
	ON_BN_CLICKED(IDC_Close, OnClose)
	ON_BN_CLICKED(IDC_Next, OnNext)
	ON_BN_CLICKED(IDC_Pause, OnPause)
	ON_BN_CLICKED(IDC_Prev, OnPrev)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CExampleDlg message handlers

BOOL CExampleDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
	this->m_PauseButton.EnableWindow(FALSE);
	this->m_CloseButton.EnableWindow(FALSE);
	this->m_PlayButton.EnableWindow(FALSE);  
	this->m_NextButton.EnableWindow(FALSE);
	this->m_PrevButton.EnableWindow(FALSE);  
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CExampleDlg::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 CExampleDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CExampleDlg::OnOpen() 
{
	// TODO: Add your control notification handler code here
	CFileDialog OpenDlg(TRUE);
	switch(this->m_MediaType)
	{
	case 1:	
		OpenDlg.m_ofn.lpstrFilter="Wave Files(*.wav)\0*.wav\0\0"; 
		this->m_Multimedia.SetDeviceType("WaveAudio");  
		break;
	case 2:	
		OpenDlg.m_ofn.lpstrFilter="AVI Files(*.avi)\0*.avi\0\0"; 
		this->m_Multimedia.SetDeviceType("AviVideo");  
		break;
	case 3:	
		OpenDlg.m_ofn.lpstrFilter="Midi Files(*.mid)\0*.mid\0\0"; 
		this->m_Multimedia.SetDeviceType("Sequencer");  
		break;
	case 4:	
		OpenDlg.m_ofn.lpstrFilter=""; 
		this->m_Multimedia.SetDeviceType("CDAudio");
		this->m_Multimedia.SetCommand("Open");  
		this->m_CloseButton.EnableWindow(TRUE);
		this->m_PauseButton.EnableWindow(TRUE);
		this->m_PlayButton.EnableWindow(TRUE);  
		this->m_NextButton.EnableWindow(TRUE);
		this->m_PrevButton.EnableWindow(TRUE);  
	}
	if(OpenDlg.DoModal()==IDOK)
	{
		this->m_Multimedia.SetFileName(OpenDlg.GetFileName());
		this->m_FileName.SetWindowText(this->m_Multimedia.GetFileName());   
		this->m_Multimedia.SetCommand("Open");  
		this->m_CloseButton.EnableWindow(TRUE);
		this->m_PauseButton.EnableWindow(TRUE);
		this->m_PlayButton.EnableWindow(TRUE);  
		this->m_NextButton.EnableWindow(TRUE);
		this->m_PrevButton.EnableWindow(TRUE);  
	}
}

void CExampleDlg::OnRadio1() 
{
	// TODO: Add your control notification handler code here
	m_MediaType=1;	
}

void CExampleDlg::OnRadio2() 
{
	// TODO: Add your control notification handler code here
	m_MediaType=2;	
}

void CExampleDlg::OnRadio3() 
{
	// TODO: Add your control notification handler code here
	m_MediaType=3;
}

void CExampleDlg::OnRadio4() 
{
	// TODO: Add your control notification handler code here
	m_MediaType=4;
}

void CExampleDlg::OnPlay() 
{
	// TODO: Add your control notification handler code here
	this->m_Multimedia.SetCommand("Play");  	
}

BEGIN_EVENTSINK_MAP(CExampleDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CExampleDlg)
	ON_EVENT(CExampleDlg, IDC_MMCONTROL1, 28 /* StatusUpdate */, OnStatusUpdateMmcontrol1, VTS_NONE)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()

void CExampleDlg::OnStatusUpdateMmcontrol1() 
{
	// TODO: Add your control notification handler code here
	this->m_Slider.SetRange(0,this->m_Multimedia.GetLength(),TRUE);    
	this->m_Slider.SetPos(this->m_Multimedia.GetPosition());   
}

void CExampleDlg::OnClose() 
{
	// TODO: Add your control notification handler code here
	this->m_Multimedia.SetCommand("Close"); 
	this->m_CloseButton.EnableWindow(FALSE);
	this->m_PauseButton.EnableWindow(FALSE);
	this->m_PlayButton.EnableWindow(FALSE);  
	this->m_NextButton.EnableWindow(FALSE);
	this->m_PrevButton.EnableWindow(FALSE);  
}

void CExampleDlg::OnNext() 
{
	// TODO: Add your control notification handler code here
	this->m_Multimedia.SetCommand("Next");  
}

void CExampleDlg::OnPause() 
{
	// TODO: Add your control notification handler code here
	this->m_Multimedia.SetCommand("Pause");  
}

void CExampleDlg::OnPrev() 
{
	// TODO: Add your control notification handler code here
	this->m_Multimedia.SetCommand("Prev"); 	
}