logoview.cpp

看到有兄弟提出的半透明算法

// LogoView.cpp: implementation of the CLogoView class.
//
//////////////////////////////////////////////////////////////////////

#include "LogoView.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CLogoView::CLogoView()
{

}

CLogoView::CLogoView(CGameDoc* pDoc)
{
	SetDocument(pDoc);
}

CLogoView::~CLogoView()
{

}

bool CLogoView::OnInitData()
{
	BEGIN_CHECK
	{
		CHECK_NULL(m_pBitmap[LOGO1_INDEX], CBitmap::CreateInstance());
		CHECK_NULL(m_pBitmap[LOGO2_INDEX], CBitmap::CreateInstance());

		CHECK_FALSE(LoadLogoBmpRes());
	}
	CATCH_CHECK
	{
		CUSTOM_RELEASE(m_pBitmap[LOGO1_INDEX]);
		CUSTOM_RELEASE(m_pBitmap[LOGO2_INDEX]);
	}
	END_CHECK

	m_nCurBmpIndex = 0;
	m_nTimeCount = 0;
	m_bReload = false;

	// 将键盘按键全部清空
	m_pDoc->GetKeyControl()->InitData();
	
	return true;
}

void CLogoView::OnResume()
{
	CBaseView::OnResume();
}

void CLogoView::OnSetTimer()
{
	// 设置定时器
	SetTimer(TIME_VIEW, (PFNNOTIFY)(CLogoView::HandleTimer));
}

void CLogoView::OnStartView()
{
	// 初始化对象
	if (!OnInitData())
	{
		return;
	}
	
	m_pDoc->SetCurView(this);
	// 设置定时器
	CALLBACK_Init(&m_cbTimer, (PFNNOTIFY)HandleTimer, this);
	
	OnSetTimer();
}

void CLogoView::OnSuspend()
{
	// 结束定时器
	CALLBACK_Cancel(&m_cbTimer);
	
	//	// 释放资源
	
	CBaseView::OnSuspend();
}

void CLogoView::OnTimer()
{
	// 重新计算数据
	if (m_pDoc == NULL)
		return;
	
	// 在Doc里处理按键事件
	if (!m_pDoc->UpdateLogoView())
	{
		m_pDoc->SwitchView(ID_VIEW_MENU);
		return;
	}

	// 获取应用程序指针
	CGameApp* pApp = (CGameApp*) GETAPPINSTANCE();
	if (pApp == NULL)
	{
		return;
	}

	m_bReload = false;
	// 如果到了1s，就换下一张图
	if (m_nTimeCount >= 80)
	{
		m_nTimeCount = 0;

		if (m_nCurBmpIndex == 0)
			m_bReload = true;
	}
	else
		m_nTimeCount++;

	if (m_bReload)
		SetNextBmp();

	// 根据更新数据画图
	OnDraw(m_nCurBmpIndex);

	BEGIN_CHECK
	{
		CHECK_ERROR(ISHELL_SetTimerEx(pApp->m_pIShell, TIME_VIEW, &m_cbTimer));
	}
	CATCH_CHECK
	{
		return;
	}
	END_CHECK
}

bool CLogoView::SetTimer(int32 dwInterval, PFNNOTIFY pfnCallback)
{
	CGameApp* pApp = NULL;

	BEGIN_CHECK
	{
		// 取app指针
		CHECK_NULL(pApp, (CGameApp*) GETAPPINSTANCE());
		CHECK_ERROR(ISHELL_SetTimerEx(pApp->m_pIShell, dwInterval, &m_cbTimer));
	}
	CATCH_CHECK
	{
		return false;
	}
	END_CHECK

	return true;
}

void CLogoView::HandleTimer(void* pView)
{
	((CLogoView* )pView)->OnTimer();
}

boolean CLogoView::LoadLogoBmpRes()
{
	BEGIN_CHECK
	{
		// 加载位图资源
		CHECK_ERROR(m_pBitmap[LOGO1_INDEX]->Load(IDB_LOGO1));
		CHECK_ERROR(m_pBitmap[LOGO2_INDEX]->Load(IDB_LOGO2));
	}
	CATCH_CHECK
	{
		CUSTOM_RELEASE(m_pBitmap[LOGO1_INDEX]);
		CUSTOM_RELEASE(m_pBitmap[LOGO2_INDEX]);
		return false;
	}

	return true;
}

void CLogoView::FreeResourse()
{
	// 结束定时器标志
	m_pDoc->SetExitTimer(false);
	// 结束定时器
	CALLBACK_Cancel(&m_cbTimer);
	
	// 释放位图资源
	CUSTOM_RELEASE(m_pBitmap[LOGO1_INDEX]);
	CUSTOM_RELEASE(m_pBitmap[LOGO2_INDEX]);
}

void CLogoView::ExitView()
{
	// 结束定时器标志
	m_pDoc->SetExitTimer(true);
	// 结束定时器
	CALLBACK_Cancel(&m_cbTimer);
	
	// 释放位图资源
	CUSTOM_RELEASE(m_pBitmap[LOGO1_INDEX]);
	CUSTOM_RELEASE(m_pBitmap[LOGO2_INDEX]);
}

void CLogoView::SetNextBmp()
{
	m_nCurBmpIndex++;
}

void CLogoView::OnDraw(int nCurBmp)
{
	m_pBitmap[m_nCurBmpIndex]->DrawBgBitmap(0, 0, BACKGROUND_WIDTH, BACKGROUND_HEIGTH, 0, 0);
	IDISPLAY_Update(((CGameApp*)GETAPPINSTANCE())->m_pIDisplay);
}