topical media & game development
hush-src-multi-GamePlayer-archive-StartDialog.cpp / cpp
//------------------------------------------------------------------------------
// File: StartDialog.cpp
//
// Desc: DirectShow sample code - MultiVMR9 GamePlayer
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
include <stdafx.h>
include <GamePlayer.h>
include <StartDialog.h>
include <Cderr.h>
ifdef _DEBUG
define new DEBUG_NEW
endif
extern HINSTANCE g_hInstance;
const UINT_PTR g_TimerID = 0x54321;
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CStartDialog dialog
****************************Public*Routine******************************\
CStartDialog
constructor
\*************************************************************************
CStartDialog::CStartDialog(CWnd* pParent /*=NULL*/)
: CDialog(CStartDialog::IDD, pParent)
, m_pSession( NULL )
, m_nTimer( NULL )
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
****************************Public*Routine******************************\
DoDataExchange
\*************************************************************************
void CStartDialog::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_LIST_SOURCES, m_ListSources);
}
****************************Public*Routine******************************\
MESSAGE_MAP
\*************************************************************************
BEGIN_MESSAGE_MAP(CStartDialog, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON_ADD, OnBnClickedButtonAdd)
ON_BN_CLICKED(IDC_BUTTON_DELETE, OnBnClickedButtonDelete)
ON_BN_CLICKED(IDC_BUTTON_START, OnBnClickedButtonStart)
ON_BN_CLICKED(IDC_BUTTON_STOP, OnBnClickedButtonStop)
ON_WM_DESTROY()
ON_WM_TIMER()
END_MESSAGE_MAP()
// CStartDialog message handlers
****************************Public*Routine******************************\
OnInitDialog
\*************************************************************************
BOOL CStartDialog::OnInitDialog()
{
HRESULT hr = S_OK;
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);
}
}
m_ListSources.DeleteColumn(0);
m_ListSources.InsertColumn(0, TEXT("Media files"), LVCFMT_LEFT, 300, 0);
// 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
m_nTimer = SetTimer( g_TimerID, 500, 0);
UpdateControls_();
return TRUE; // return TRUE unless you set the focus to a control
}
****************************Public*Routine******************************\
OnSysCommand
\*************************************************************************
void CStartDialog::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.
****************************Public*Routine******************************\
OnPaint
\*************************************************************************
void CStartDialog::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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();
}
}
****************************Public*Routine******************************\
OnQueryDragIcon
\*************************************************************************
// The system calls this function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CStartDialog::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
****************************Public*Routine******************************\
OnBnClickedButtonAdd
response to "Add" button
\*************************************************************************
void CStartDialog::OnBnClickedButtonAdd()
{
TCHAR achPath[MAX_PATH];
TCHAR achFilePath[MAX_PATH];
OPENFILENAME ofn;
DWORD dwErr = 0;
GetCurrentDirectory( MAX_PATH, achPath);
static TCHAR szFilter[] = TEXT("Video Files (.mpg;.mpeg;.avi;.wmv;.asf)\0*.mpg;*.mpeg;*.avi;*.wmv;*.asf\0") \
TEXT("All Files (*.*)\0*.*\0\0");
lstrcpy(achFilePath, TEXT(""));
ZeroMemory( &ofn, sizeof(ofn) );
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner = NULL;
ofn.hInstance = NULL;
ofn.lpstrFilter = szFilter;
ofn.nFilterIndex = 1;
ofn.lpstrCustomFilter = NULL;
ofn.nMaxCustFilter = 0;
ofn.lpstrFile = achFilePath;
ofn.nMaxFile = MAX_PATH;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.nFileOffset = 0;
ofn.nFileExtension = 0;
ofn.lpstrDefExt = NULL;
ofn.lCustData = 0L;
ofn.lpfnHook = NULL;
ofn.lpTemplateName = NULL;
if( TRUE == GetOpenFileName(&ofn ))
{
int nItem = m_ListSources.GetItemCount();
CString str = ofn.lpstrFile;
m_ListSources.InsertItem( nItem, str);
}
UpdateData( FALSE);
SetCurrentDirectory( achPath );
}
****************************Public*Routine******************************\
OnBnClickedButtonDelete
response to "Delete" button
\*************************************************************************
void CStartDialog::OnBnClickedButtonDelete()
{
int nItem = m_ListSources.GetNextItem( -1, LVNI_SELECTED|LVNI_FOCUSED);
if( -1 == nItem )
return;
m_ListSources.DeleteItem(nItem);
UpdateData( FALSE);
}
****************************Public*Routine******************************\
OnBnClickedButtonStart
response to "Start" button
\*************************************************************************
void CStartDialog::OnBnClickedButtonStart()
{
HRESULT hr = S_OK;
int nItems = 0;
DWORD_PTR dwID = NULL;
CVMR9Subgraph* pSource = NULL;
if( m_pSession )
return;
m_pSession = new CGamePlayerSession();
if( FAILED(hr))
{
AfxMessageBox(TEXT("Failed to create a new CGamePlayerSession"), MB_OK, 0);
return;
}
hr = m_pSession->Initialize();
if( FAILED(hr))
{
AfxMessageBox(TEXT("Failed to initialize CGamePlayerSession"), MB_OK, 0);
return;
}
nItems = m_ListSources.GetItemCount();
for( int i=0; i<nItems; i++)
{
TCHAR achPath[MAX_PATH];
WCHAR wcPath[MAX_PATH];
m_ListSources.GetItemText( i, 0, achPath, MAX_PATH);
ifdef UNICODE
wcscpy( wcPath, achPath);
else
MultiByteToWideChar(CP_ACP, 0, achPath, -1, wcPath, MAX_PATH);
endif
hr = m_pSession->AddSource( wcPath, dwID );
if( FAILED(hr))
{
CString strMsg;
strMsg.Format(TEXT("Failed to add source\r\n\%s\r\nto the session. Error code 0x%08x"),
achPath, hr);
AfxMessageBox( strMsg, MB_OK, 0);
}
pSource = m_pSession->GetSubgraph( dwID);
if( pSource )
{
pSource->Run();
}
m_ListSources.SetItemData( i, dwID);
}
if( FAILED(hr))
{
CString strMsg;
strMsg.Format(TEXT("Failed to run the session. Error code 0x%08x"), hr);
AfxMessageBox( strMsg, MB_OK, 0);
}
UpdateControls_();
}
****************************Public*Routine******************************\
OnBnClickedButtonStop
response to "Stop" button
\*************************************************************************
void CStartDialog::OnBnClickedButtonStop()
{
if( m_pSession )
{
delete m_pSession;
m_pSession = NULL;
}
UpdateControls_();
}
****************************Public*Routine******************************\
OnDestroy
WM_DESTROY
\*************************************************************************
void CStartDialog::OnDestroy()
{
CDialog::OnDestroy();
if( m_pSession )
{
delete m_pSession;
m_pSession = NULL;
}
::KillTimer( GetSafeHwnd(), m_nTimer);
}
****************************Public*Routine******************************\
OnTimer
\*************************************************************************
void CStartDialog::OnTimer(UINT nIDEvent)
{
if( m_pSession )
{
m_pSession->LoopSources();
}
CDialog::OnTimer(nIDEvent);
}
///////////////////////// PRIVATE DOMAIN ////////////////////////
****************************Private*Routine*****************************\
UpdateControls_
udate controls depending on the state of the application
\*************************************************************************
void CStartDialog::UpdateControls_()
{
if( GetDlgItem(IDC_BUTTON_START))
GetDlgItem(IDC_BUTTON_START)->EnableWindow( m_pSession ? FALSE : TRUE );
if( GetDlgItem(IDC_BUTTON_STOP))
GetDlgItem(IDC_BUTTON_STOP)->EnableWindow( m_pSession ? TRUE : FALSE );
if( GetDlgItem(IDC_BUTTON_ADD))
GetDlgItem(IDC_BUTTON_ADD)->EnableWindow( m_pSession ? FALSE : TRUE );
if( GetDlgItem(IDC_BUTTON_DELETE))
GetDlgItem(IDC_BUTTON_DELETE)->EnableWindow( m_pSession ? FALSE : TRUE );
if( GetDlgItem(IDOK))
GetDlgItem(IDOK)->EnableWindow( m_pSession ? FALSE : TRUE );
UpdateData( FALSE );
}
(C) Æliens
20/2/2008
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