videoplaydlg.cpp

一个在WINCE5.0下开发的MP4播放器,可以播放多种视频文件,画面优质.

	// TODO: Add your control notification handler code here
	m_bMute = TRUE;
	
#ifdef TESTPLAYER
	m_Player.SetVolume(VOL_SILENCE);
#endif
	m_btnMute.ShowWindow(SW_SHOW);
	m_btnVol.ShowWindow(SW_HIDE);
}

void CVideoPlayDlg::GetVideoDuration()
{
#ifdef TESTPLAYER
	m_Player.GetMediaDuration(m_dDuration);
#endif
}


void CVideoPlayDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
#ifdef TESTPLAYER
	LONG  lRemainingSecs;
	double	 rate = 0.0, llCurDur= 0.0;
	TCHAR	chDuration[MAX_STRING];
	TCHAR	chCurTime[MAX_STRING];
	CRect btnRect;
	
	if((nIDEvent == TIME_VIDEO_SECID)&&(m_Player.play_state == STATE_PLAY))
	{
		//change this to get_curtime
		m_Player.GetMediaCurrPos(llCurDur);
		//calculate time
		lRemainingSecs = (LONG)llCurDur;
		
		m_nTimeHour = (int)lRemainingSecs / 3600;   // 3600 seconds in the hour
		lRemainingSecs  = lRemainingSecs % 3600;
		
		m_nTimeMin = (int)lRemainingSecs / 60;   // 60 seconds in the minute
		lRemainingSecs    = lRemainingSecs % 60;
		
		m_nTimeSec = (int)lRemainingSecs;
		
		wsprintf(chCurTime, L"%02d:%02d:%02d", m_nTimeHour, m_nTimeMin, m_nTimeSec );
		wsprintf(chDuration, L"%02d:%02d:%02d", (int)m_dDuration/3600,(int)m_dDuration/60,(int)m_dDuration%60);
		
		DisplayTime(chDuration,chCurTime);
		
		//calculate progress slider position
		rate = llCurDur/m_dDuration;
		
		m_sliderPro.GetClientRect(&btnRect);
		//set position
		m_sliderPro.SetPos((int)(rate*m_nProWidth));

		m_Player.checkautostop();
	}
	else if((nIDEvent == TIME_VIDEO_SECID)&&(m_Player.play_state == STATE_INIT))
	{
		printf("video complete stop \n");
		OnStop();
	//	OnNextFile();
	}
#endif	
	CDialog::OnTimer(nIDEvent);
}

void CVideoPlayDlg::ResetTimeAndSlider()
{
	//reset time and slider
	TCHAR	chDuration[MAX_STRING];
	TCHAR	chCurTime[MAX_STRING];
	CRect	btnRect;
	
	m_nTimeHour = 0;
	m_nTimeMin = 0;
	m_nTimeSec = 0;

	//time
	wsprintf(chDuration, L"%02d:%02d:%02d", 
		(int)m_dDuration/3600,(int)m_dDuration/60,(int)m_dDuration%60);
	wcscpy(chCurTime, L"00:00:00");
	DisplayTime(chDuration,chCurTime);
	//slider
	m_sliderPro.SetPos(0);
}


void CVideoPlayDlg::DisplayTime(TCHAR*  TotalTime,TCHAR* CurTime)
{
	TCHAR   TmpChar[MAX_STRING];
	
	//display time
	wcscpy(TmpChar,CurTime);
	wcscat(TmpChar,L"/");
	wcscat(TmpChar,TotalTime);
	m_Time.SetWindowText(TmpChar);
}
void CVideoPlayDlg::DisplayTitle()
{
	m_Title.SetWindowText(GetFileName(m_chFileName));
}


void CVideoPlayDlg::OnOpenFile() 
{
	// TODO: Add your control notification handler code here
	CFileListDlg dlg(this);
	//get file list dlg
	m_VideoList = &dlg;
	dlg.DoModal();

	//get current full file name
	if(m_VideoList->m_chCurFilename[0]!=0)
	{
		//m_chFileName is full file name
		wcscpy(m_chFileName, m_VideoList->m_chCurFilename);
		
		VideoPlay();
	}

	Invalidate();
}
TCHAR* CVideoPlayDlg::GetFileName(TCHAR* chFullFileName)
{
	if (chFullFileName == NULL || chFullFileName[0] == 0)
		return NULL;
	
	int siLen = wcslen(chFullFileName);
	
	for(int i = siLen - 1; i >= 0; --i)
	{
		if(chFullFileName[i] == '\\')
			break;
	}
	
	return chFullFileName + i + 1;
}

void CVideoPlayDlg::OnNextFile() 
{
	// TODO: Add your control notification handler code here
	CString		Str;
	if(m_chFileName[0])
	{
		if(g_nCurSelItem+1<g_StrList.GetCount())
		{
			g_nCurSelItem++;
			Str = g_StrList.GetAt(g_StrList.FindIndex(g_nCurSelItem));
			//get current full file name
			wcscpy(m_chFileName,Str);
			//then open it
			VideoPlay();
		}
	}
}

void CVideoPlayDlg::OnLastFile() 
{
	// TODO: Add your control notification handler code here
	CString		Str;
	if(m_chFileName[0])
	{
		if(g_nCurSelItem>0)
		{
			g_nCurSelItem--;
			Str = g_StrList.GetAt(g_StrList.FindIndex(g_nCurSelItem));
			//get current full file name
			wcscpy(m_chFileName,Str);
			//then open it
			VideoPlay();
		}
	}
}

HBRUSH CVideoPlayDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr;
	
	// TODO: Change any attributes of the DC here
	if(nCtlColor==CTLCOLOR_STATIC)
	{
		int ID = pWnd->GetDlgCtrlID();
		
		pDC->SetBkMode(TRANSPARENT);  
		
		switch(ID)
		{
		case IDC_STATIC_TITLE:
			hbr = CreateSolidBrush(COLOR_BLUE);
			pDC->SetTextColor(COLOR_YELLOW);
			break;
		case IDC_STATIC_TIME:
			hbr = CreateSolidBrush(COLOR_BLUE);
			pDC->SetTextColor(COLOR_YELLOW);
			break;
		case IDC_VIDEO_WINDOWS:
			hbr = CreateSolidBrush(COLOR_BLACK);				
			break;
		}
	}   
	
	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

LRESULT CVideoPlayDlg::OnBitmapSliderMoved(WPARAM wParam, LPARAM lParam)
{
	double	dRate = 0.0;
	int		nPos = 0, nLeftVol = 0, nRightVol = 0;
	
	if(m_chFileName[0] == 0)
		return 0;

	if( wParam == IDC_SLIDER_VOL)
	{
		m_nPos = m_sliderVol.GetPos();
		m_sliderVol.SetPos(m_nPos);
		//only m_bMute is false
		if(m_bMute == FALSE)
		{
			//calculate rate
			dRate = (double)m_nPos/m_nVolWidth;
			//delete this for OS volume
// 			nLeftVol = nRightVol = (int)(0xffff*dRate);
// 			m_nVolume =  nLeftVol<<16|nRightVol;
			//for change audio volume
			m_nVolume = (LONG)(dRate*(VOL_FULL-VOL_SILENCE)+VOL_SILENCE);
			
#ifdef TESTPLAYER
			m_Player.SetVolume(m_nVolume);
#endif
		}
	}
	else if(wParam == IDC_SLIDER_PRO)
	{
		m_nPos = m_sliderPro.GetPos();
		//set new position
		m_sliderPro.SetPos(m_nPos);
		//calculate rate
		dRate = (double)m_nPos/m_nProWidth;
		
#ifdef TESTPLAYER
		m_Player.SetMediaPos(m_dDuration*dRate);
#endif
	}
	return 0;
}

LRESULT CVideoPlayDlg::OnBitmapSliderMoving(WPARAM wParam, LPARAM lParam)
{
	if( wParam == IDC_SLIDER_PRO )
	{
		OnBitmapSliderMoved(wParam,lParam);
	}	
	
	return 0;
}

void CVideoPlayDlg::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
#ifdef TESTPLAYER
	if(m_Player.play_state != STATE_PLAY)
		return;
#endif
	if(PtInRect(&m_videoWindow, point))
	{
		SwitchFullScreen();	
		RECT s={0, (VIDEO_HEIGHT - 56), VIDEO_WIDTH, VIDEO_HEIGHT};
		InvalidateRect(&s,true);
	}

	CDialog::OnLButtonDown(nFlags, point);
}

// switch full screen mode
void CVideoPlayDlg::SwitchFullScreen()
{
	if (m_fullScreen)
	{
		m_videoWindow.left   = VIDEO_PLAY_LEFT;
		m_videoWindow.top    = VIDEO_PLAY_TOP;
		m_videoWindow.right  = VIDEO_PLAY_RIGHT;
		m_videoWindow.bottom = VIDEO_PLAY_BOTTOM;
		
		DisplayAllControls(TRUE);
	}
	else	// Full screen
	{
		// if not playing, full-screen mode is not allowed
#ifdef TESTPLAYER
		if (m_Player.play_state != STATE_PLAY) 
			return;
#endif		
		m_videoWindow.left   = VIDEO_PLAY_LEFT;
		m_videoWindow.top    = VIDEO_PLAY_TOP;
		m_videoWindow.right  = VIDEO_WIDTH;
		m_videoWindow.bottom = VIDEO_HEIGHT;
		
		DisplayAllControls(FALSE);
	}
	m_fullScreen = !m_fullScreen;

#ifdef TESTPLAYER
	m_Player.fullscreen(m_fullScreen);	
#endif		
}	
// make all controls visible/invisible
void CVideoPlayDlg::DisplayAllControls(BOOL flag)
{
	unsigned int n_switch;
	
	if (flag == TRUE) 
		n_switch = SW_SHOW;
	else
		n_switch = SW_HIDE;
	
	// progress bar
	m_sliderPro.ShowWindow(n_switch);
	
	// buttons
#ifdef TESTPLAYER
	if(m_Player.play_state == STATE_PLAY)
		m_btnPause.ShowWindow(n_switch);
	else
		m_btnPlay.ShowWindow(n_switch);
#endif
	m_btnClose.ShowWindow(n_switch);
	m_btnBackward.ShowWindow(n_switch);
	m_btnStop.ShowWindow(n_switch);
	m_btnForward.ShowWindow(n_switch);
	m_btnOpen.ShowWindow(n_switch);
	m_Title.ShowWindow(n_switch);
	m_Time.ShowWindow(n_switch);
}

//this only for OS volume
void IncreaseVolume() 
{
	DWORD m_curVolume=0;
	waveOutGetVolume(0,(unsigned long*)&m_curVolume);
	m_curVolume += VOL_SET_STEP;
	if (m_curVolume > VOL_FULL) m_curVolume = VOL_FULL;
	waveOutSetVolume(0, m_curVolume);
}

void DecreaseVolume() 
{
	DWORD m_curVolume=0;
	waveOutGetVolume(0,(unsigned long*)&m_curVolume);
	m_curVolume -= VOL_SET_STEP;
	if (m_curVolume < VOL_SILENCE) m_curVolume = VOL_SILENCE;
	
	waveOutSetVolume(0, m_curVolume);
}