worldview.cpp

symbian中讲述的一个有关grid的简单例子

/*
* ============================================================================
*  Name     : CWorldView from CAknView
*  Part of  : World
*  Copyright (c) 2003 Nokia. All rights reserved.
* ============================================================================
*/

// INCLUDE FILES
#include <aknviewappui.h>
#include <avkon.hrh>

#include <MyHello.rsg>
#include "MyHello.hrh"
#include "WorldView.h"
#include "WorldContainer.h" 
#include <MyHello.mbg>		//for mbm file
#include <akncontext.h>		//for CAknContextPane
#include <akntitle.h>			//for CAknTitlePane

#include "MyHelloAppUi.h"		//for CMyHelloAppUi
#include "HelloView.h"

#include <eikmenup.h>		//for CEikMenuPane
#include <eikmenub.h>	// for CEikMenuBar

// ================= MEMBER FUNCTIONS =======================

// C++ default constructor can NOT contain any code, that
// might leave.
//
CWorldView* CWorldView::NewL()
{
    CWorldView* self = NewLC();
    CleanupStack::Pop(self);
    return self;
}

CWorldView* CWorldView::NewLC()
{
    CWorldView* self = new (ELeave) CWorldView;
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
}

CWorldView::CWorldView()
    {
    }

// EPOC default constructor can leave.
void CWorldView::ConstructL()
    {
    BaseConstructL(R_WORLD_VIEW);
    }

// Destructor
CWorldView::~CWorldView()
    {
    }

// ---------------------------------------------------------
// TUid CWorldView::Id()
// Returns Id of the view.
// ---------------------------------------------------------
TUid CWorldView::Id() const
    {
    return KViewId2;
    }

// ---------------------------------------------------------
// CWorldView::HandleCommandL(TInt aCommand)
// Handles commands
// ---------------------------------------------------------
void CWorldView::HandleCommandL(TInt aCommand)
    {   
		switch(aCommand)
		{
		case EMyWorldCmdWorldDispalyAllMenuItem:
			{
				//显示和隐藏的开关：0.显示所有菜单栏
				m_nMenuFlag = 0;
				break;
			}
		case EMyWorldCmdWorldHideMenuItem:
			{
				//显示和隐藏的开关：1.隐藏部分菜单栏
				m_nMenuFlag = 1;
				break;
			}

		case EMyWorldCmdChageMenuBar:
			{
				//change the MenuBar of the view.
				//RESOURCE MENU_BAR R_FREE_INIT_MENUBAR
				//换成hello的menubar
				MenuBar()->SetMenuTitleResourceId( R_FREE_INIT_MENUBAR );
				break;
			}

		case EMyHelloCmdBack:
		case EMyWorldCmdBack:
			{
				//change the MenuBar of the view.
				//RESOURCE MENU_BAR R_FREE_INIT_MENUBAR
				//换成world的menubar
				MenuBar()->SetMenuTitleResourceId( R_MH_WORLD_MENUBAR );

				//显示和隐藏的开关：0.显示所有菜单栏
				m_nMenuFlag = 0;

				break;
			}

		case EMyHelloCmdLogon:	//EMyWorldCmdChageView:
			{	//切换视图
				AppUi()->ActivateLocalViewL(KViewId1);				
				break;
			}

		default:
			{
				AppUi()->HandleCommandL(aCommand);
				break;
			}
		}
    }

// ---------------------------------------------------------
// CWorldView::HandleClientRectChange()
// Handles client rect change.
// ---------------------------------------------------------
void CWorldView::HandleClientRectChange()
    {
    if (iContainer)
        {
        iContainer->SetRect(ClientRect());
        }
    }

// ---------------------------------------------------------
// CWorldView::DoActivateL(...)
// Creates the Container class object.
// ---------------------------------------------------------
void CWorldView::DoActivateL(const TVwsViewId& /*aPrevViewId*/,
                                    TUid /*aCustomMessageId*/,
                                    const TDesC8& /*aCustomMessage*/)
    {
    iContainer = new (ELeave) CWorldContainer;
    iContainer->SetMopParent(this);
	TRect rc;
	rc.SetRect(ClientRect().iTl, TSize(176, 144));
    iContainer->ConstructL(rc);
    //iContainer->ConstructL(ClientRect());
    AppUi()->AddToStackL(*this, iContainer);

	TBuf<KMaxPath> pathMbm;
#ifdef __WINS__
	pathMbm.Copy(_L("z:\\system\\apps\\myhello\\myhello.mbm"));
#else
	CMyHelloAppUi* pApp = (CMyHelloAppUi*)CEikonEnv::Static()->AppUi();
	pApp->GetAppPath(pathMbm);
	pathMbm.Append(_L("myhello.mbm"));
#endif
	
	CEikStatusPane* statusPane = StatusPane();
	
	CAknContextPane* contextPane = (CAknContextPane*) statusPane->ControlL(TUid::Uid(EEikStatusPaneUidContext));
	CFbsBitmap* bitmap = iEikonEnv->CreateBitmapL(pathMbm, EMbmMyhelloSnoopy_1_icon);
	contextPane->SetPicture(bitmap);
	
	//load chinese words
	TBuf<32> sTmpTitle;
	CEikonEnv::Static()->ReadResource(sTmpTitle, R_QTN_MH_WORLD_TITLE);
	
	CAknTitlePane* titlePane = (CAknTitlePane*) statusPane->ControlL(TUid::Uid(EEikStatusPaneUidTitle));
	titlePane->SetTextL(sTmpTitle);//titlePane->SetTextL(_L("World view!"));

	//显示和隐藏的开关：0.显示所有菜单栏
	m_nMenuFlag = 0;
    }

// ---------------------------------------------------------
// CWorldView::DoDeactivate()
// Deletes the Container class object.
// ---------------------------------------------------------
void CWorldView::DoDeactivate()
    {
    if (iContainer)
        {
		AppUi()->RemoveFromStack(iContainer);
		delete iContainer;
		iContainer = NULL;
        }
    }

//菜单动态效果
void CWorldView::DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane)
{
	if(aResourceId != R_MH_WORLD_MENU)
		return;
	
	//标志位：相当于显示或不显示菜单栏的开关
	switch(m_nMenuFlag)
	{
	case 0://当m_nMenuFlag==0时，显示所有菜单栏，即不隐藏菜单栏
		{
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldDispalyAllMenuItem, ETrue);
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldHideMenuItem, EFalse);
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldSubMenuPane, EFalse);
			break;
		}
	case 1://当m_nMenuFlag==1时，隐藏部分菜单栏
		{
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldDispalyAllMenuItem, EFalse);
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldHideMenuItem, ETrue);
			aMenuPane->SetItemDimmed(EMyWorldCmdWorldSubMenuPane, ETrue);
			break;
		}
	default:
		{
			break;
		}
	}
}
// End of File