wavedemoview.cpp

Visual C++编程宝典随书光盘里的代码

// WaveDemoView.cpp : implementation of
// the CWaveDemoView class
//

#include "stdafx.h"
#include "WaveDemo.h"

#include "WaveDemoDoc.h"
#include "WaveDemoView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CWaveDemoView

IMPLEMENT_DYNCREATE(CWaveDemoView, CView)

BEGIN_MESSAGE_MAP(CWaveDemoView, CView)
	//{{AFX_MSG_MAP(CWaveDemoView)
	ON_COMMAND(ID_SOUNDS_LOADFROMDISK_BOING, OnSoundsLoadfromdisk)
	ON_COMMAND(ID_SOUNDS_LOADFROMDISK_CARDS, OnSoundsLoadfromdisk)
	ON_COMMAND(ID_SOUNDS_LOADFROMDISK_LASER, OnSoundsLoadfromdisk)
	ON_COMMAND(ID_SOUNDS_LOADFROMRESOURCE_ALARM, OnSoundsLoadfromresource)
	ON_COMMAND(ID_SOUNDS_LOADFROMRESOURCE_BARK, OnSoundsLoadfromresource)
	ON_COMMAND(ID_SOUNDS_LOADFROMRESOURCE_SHOCK, OnSoundsLoadfromresource)
	ON_COMMAND(ID_SOUNDS_PLAYFROMDISK_BOING, OnSoundsPlayfromdisk)
	ON_COMMAND(ID_SOUNDS_PLAYFROMDISK_CARDS, OnSoundsPlayfromdisk)
	ON_COMMAND(ID_SOUNDS_PLAYFROMDISK_LASER, OnSoundsPlayfromdisk)
	ON_COMMAND(ID_SOUNDS_PLAYFROMRESOURCE_ALARM, OnSoundsPlayfromresource)
	ON_COMMAND(ID_SOUNDS_PLAYFROMRESOURCE_BARK, OnSoundsPlayfromresource)
	ON_COMMAND(ID_SOUNDS_PLAYFROMRESOURCE_SHOCK, OnSoundsPlayfromresource)
	ON_COMMAND(ID_SOUNDS_PLAYLOADEDSOUND, OnSoundsPlayloadedsound)
	ON_UPDATE_COMMAND_UI(ID_SOUNDS_PLAYLOADEDSOUND, OnUpdateSoundsPlayloadedsound)
	ON_COMMAND(ID_SOUNDS_STOPSOUND, OnSoundsStopsound)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CWaveDemoView construction/destruction

static int nResID[] = { IDR_WAVE1, IDR_WAVE2, IDR_WAVE3 };

CWaveDemoView::CWaveDemoView()
{
}

CWaveDemoView::~CWaveDemoView()
{
}

BOOL CWaveDemoView::PreCreateWindow(CREATESTRUCT& cs)
{
	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CWaveDemoView drawing

void CWaveDemoView::OnDraw(CDC* pDC)
{
	CWaveDemoDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
}

/////////////////////////////////////////////////////////////////////////////
// CWaveDemoView diagnostics

#ifdef _DEBUG
void CWaveDemoView::AssertValid() const
{
	CView::AssertValid();
}

void CWaveDemoView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CWaveDemoDoc* CWaveDemoView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CWaveDemoDoc)));
	return (CWaveDemoDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CWaveDemoView message handlers

void CWaveDemoView::OnSoundsLoadfromdisk() 
{
	// Get the menu ID for this message.
	WORD wID = GetCurrentMessage()->wParam;

	// Have the CWave object load the .wav
	// file from disk for the sound that's
	// been selected.
	if( wID == ID_SOUNDS_LOADFROMDISK_CARDS )
		m_Wave.Load( "Sample1.wav" );
	else if( wID == ID_SOUNDS_LOADFROMDISK_BOING )
		m_Wave.Load( "Sample2.wav" );
	else
		m_Wave.Load( "Sample3.wav" );

}

void CWaveDemoView::OnSoundsLoadfromresource() 
{
	// Get the menu ID for this message.
	WORD wID = GetCurrentMessage()->wParam;

	// Have the CWave object load the wave
	// resource for the sound that's been
	// selected.
	if( wID == ID_SOUNDS_LOADFROMRESOURCE_BARK )
		m_Wave.Load( IDR_WAVE3,
			AfxGetInstanceHandle() );
	else if( wID == ID_SOUNDS_LOADFROMRESOURCE_SHOCK )
		m_Wave.Load( IDR_WAVE2,
			AfxGetInstanceHandle() );
	else
		m_Wave.Load( IDR_WAVE1,
			AfxGetInstanceHandle() );

}

void CWaveDemoView::OnSoundsPlayfromdisk() 
{
	// Get the menu ID for this message.
	WORD wID = GetCurrentMessage()->wParam;

	// Let them know when we start
	// by changing the mouse cursor
	// to the hourglass.
	BeginWaitCursor();

	// Have the CWave object play the .wav
	// file from disk for the sound that's
	// been selected.
	if( wID == ID_SOUNDS_PLAYFROMDISK_CARDS )
		m_Wave.PlayFromDisk( "Sample1.wav" );
	else if( wID == ID_SOUNDS_PLAYFROMDISK_BOING )
		m_Wave.PlayFromDisk( "Sample2.wav" );
	else
		m_Wave.PlayFromDisk( "Sample3.wav" );

	// Change the mouse cursor back to
	// it's original state before
	// the call to BeginWaitCursor().
	EndWaitCursor();

}

void CWaveDemoView::OnSoundsPlayfromresource() 
{
	// Get the menu ID for this message.
	WORD wID = GetCurrentMessage()->wParam;

	// Let them know when we start
	// by changing the mouse cursor
	// to the hourglass.
	BeginWaitCursor();

	// Have the CWave object play the wave
	// resource for the sound that's been
	// selected.
	if( wID == ID_SOUNDS_PLAYFROMRESOURCE_BARK )
		m_Wave.PlayFromRes( IDR_WAVE3,
			AfxGetInstanceHandle() );
	else if( wID == ID_SOUNDS_PLAYFROMRESOURCE_SHOCK )
		m_Wave.PlayFromRes( IDR_WAVE2,
			AfxGetInstanceHandle() );
	else
		m_Wave.PlayFromRes( IDR_WAVE1,
			AfxGetInstanceHandle() );

	// Change the mouse cursor back to
	// it's original state before
	// the call to BeginWaitCursor().
	EndWaitCursor();

}

void CWaveDemoView::OnSoundsPlayloadedsound() 
{

	// Let them know when we start
	// by changing the mouse cursor
	// to the hourglass.
	BeginWaitCursor();

	// Play the loaded sound.
	m_Wave.Play();

	// Change the mouse cursor back to
	// it's original state before
	// the call to BeginWaitCursor().
	EndWaitCursor();

}

void CWaveDemoView::OnUpdateSoundsPlayloadedsound(
	CCmdUI* pCmdUI) 
{

	// Enable the menu item if a sound has
	// been loaded.
	pCmdUI->Enable( m_Wave.IsLoaded() );

}

void CWaveDemoView::OnSoundsStopsound() 
{

	// Stop the sound that's playing.
	m_Wave.Stop();

}