exercisecontainerview.cpp

symbian手机开发程序

/*
========================================================================
 Name        : ExerciseContainerView.cpp
 Author      : 
 Copyright   : Your copyright notice
 Description : 
========================================================================
*/
// [[[ begin generated region: do not modify [Generated System Includes]
#include <aknviewappui.h>
#include <eikmenub.h>
#include <avkon.hrh>
#include <barsread.h>
#include <stringloader.h>
#include <eiklabel.h>
#include <eikenv.h>
#include <akncontext.h>
#include <akntitle.h>
#include <eikbtgpc.h>
#include <Exercise.rsg>
// ]]] end generated region [Generated System Includes]
#include <aknquerydialog.h> 
#include <aknnotewrappers.h> 
#include <f32file.h>
#include <s32file.h>
#include <UTF.H>         //转换
// [[[ begin generated region: do not modify [Generated User Includes]

#include "Exercise.hrh"
#include "ExerciseContainerView.h"
#include "ExeriseContainer.hrh"
#include "ExerciseListBox.hrh"
#include "ExerciseContainer.h"
// ]]] end generated region [Generated User Includes]
_LIT(KFileName,"C:\\Hello.txt");
// [[[ begin generated region: do not modify [Generated Constants]
// ]]] end generated region [Generated Constants]
/**
 * First phase of Symbian two-phase construction. Should not contain any
 * code that could leave.
 */
CExerciseContainerView::CExerciseContainerView()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	iExerciseContainer = NULL;
	// ]]] end generated region [Generated Contents]
	
	}

/** 
 * The view's destructor removes the container from the control
 * stack and destroys it.
 */
CExerciseContainerView::~CExerciseContainerView()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	delete iExerciseContainer;
	iExerciseContainer = NULL;           /////
	// ]]] end generated region [Generated Contents]
	
	}

/**
 * Symbian two-phase constructor.
 * This creates an instance then calls the second-phase constructor
 * without leaving the instance on the cleanup stack.
 * @return new instance of CExerciseContainerView
 */
CExerciseContainerView* CExerciseContainerView::NewL()
	{
	CExerciseContainerView* self = CExerciseContainerView::NewLC();
	CleanupStack::Pop( self );
	return self;
	}

/**
 * Symbian two-phase constructor.
 * This creates an instance, pushes it on the cleanup stack,
 * then calls the second-phase constructor.
 * @return new instance of CExerciseContainerView
 */
CExerciseContainerView* CExerciseContainerView::NewLC()
	{
	CExerciseContainerView* self = new ( ELeave ) CExerciseContainerView();
	CleanupStack::PushL( self );
	self->ConstructL();
	return self;
	}


/**
 * Second-phase constructor for view.  
 * Initialize contents from resource.
 */ 
void CExerciseContainerView::ConstructL()
	{
	// [[[ begin generated region: do not modify [Generated Code]
	BaseConstructL( R_EXERCISE_CONTAINER_EXERCISE_CONTAINER_VIEW );
				
	// ]]] end generated region [Generated Code]
	
	// add your own initialization code here
	
	}

/**
 * @return The UID for this view
 */
TUid CExerciseContainerView::Id() const         //����ͼ�µ���ͼid，需要在hrh文件里枚举
	{
	return TUid::Uid( EExerciseContainerViewId );
	}

/**
 * Handle a command for this view (override)
  @param aCommand command id to be handled
 */
void CExerciseContainerView::HandleCommandL( TInt aCommand )
	{
	// [[[ begin generated region: do not modify [Generated Code]
	TBool commandHandled = EFalse;
	switch ( aCommand )
		{	// code to dispatch to the AknView's menu and CBA commands is generated here
			case EAknSoftkeyDone:
			AppUi()->HandleCommandL( EAknSoftkeyDone );
			break;
			case EExerciseContainerView_001MenuItemCommand:
			AppUi()->HandleCommandL( EAknSoftkeyDone );
			break;
			case EExerciseContainerView_002MenuItemCommand://input 
				{
				TBuf<100> Name;
				RunDataQuery1L(Name,ETrue,NULL);//get the dialog
				//name.Copy(Name);
	
				TBuf8<200>name;
				CnvUtfConverter::ConvertFromUnicodeToUtf8(name,Name);
				//RunDataQuery1L(Name,ETrue,NULL);//get the dialog
				//name.Copy(Name);
				
				RFs afs;
				RFile file;
				User::LeaveIfError(afs.Connect());      //需建立与文件连接
				CleanupClosePushL(afs);

				TInt err=file.Open(afs,KFileName,EFileWrite);
				if(err==KErrNotFound)                       
					{
					err=file.Create(afs,KFileName,EFileWrite);//if file hasn't exit,create it
					}
				TInt pos;
				TInt temp=file.Size(pos);//pos stands for the positon of file's end
				file.Seek(ESeekEnd,pos );//change the the file's start point.
				file.Write(pos,name,name.Size());
				file.Close();
				afs.Close();
				CleanupStack::PopAndDestroy();
				}
			break;
		///***********////	
		
			case EExerciseContainerView_003MenuItemCommand:
							{
							RFs fs;
							User::LeaveIfError(fs.Connect());
							RFile file;
							User::LeaveIfError(file.Open(fs, KFileName, EFileRead));
							TBuf8<128> buf8;
							file.Read(buf8);
							HBufC* buf16=HBufC::NewLC(128);
							TPtr ptr16=buf16->Des();
							ptr16.Copy(buf8);
							//HBufC* fileData = HBufC::NewLC(inputFileStream, 32);

							CAknInformationNote* informationNote;

							informationNote = new ( ELeave ) CAknInformationNote;
															// Show the information Note
							informationNote->ExecuteLD( *buf16);
							//TBuf<256> buf16;
							//ConvGbk2Uni(buf8, buf16) ;
							TInt Len=ptr16.Length();
								             
							for(TInt i=1;i<Len;i++)
							{
								            	
							ptr16.Delete(i,1);	            	
							Len=ptr16.Length();
							}
							
							
							fs.Close();
							//CleanupStack::PopAndDestroy(3);
							break;
							/*
							RFs fsSession;
							RFile rFile;
										
							// Connects a client process to the fileserver
							User::LeaveIfError(fsSession.Connect());
							CleanupClosePushL(fsSession);
										
							//Open file where the stream text is
							User::LeaveIfError(rFile.Open(fsSession,KFileName, EFileStreamText));//EFileShareReadersOnly));// EFileStreamText));
							CleanupClosePushL(rFile);
										
							// copy stream from file to RFileStream object
							RFileReadStream inputFileStream(rFile);
							CleanupClosePushL(inputFileStream);
							    		
							// HBufC descriptor is created from the RFileStream object.
							HBufC* fileData = HBufC::NewLC(inputFileStream, 32);

							CAknInformationNote* informationNote;

							informationNote = new ( ELeave ) CAknInformationNote;
							// Show the information Note
							informationNote->ExecuteLD( *fileData);			
										
							// Pop loaded resources from the cleanup stack
							CleanupStack::PopAndDestroy(4); // filedata, inputFileStream, rFile, fsSession
							fsSession.Close();
							*/
							}
					default:
						break;
					}
		
	if ( !commandHandled ) 
		{
	
		if ( aCommand == EAknSoftkeyExit )
			{
			AppUi()->HandleCommandL( EEikCmdExit );
			}
	
		}
	// ]]] end generated region [Generated Code]
	
	}

/**
 *	Handles user actions during activation of the view, 
 *	such as initializing the content.
 */
void CExerciseContainerView::DoActivateL( 
		const TVwsViewId& /*aPrevViewId*/,
		TUid /*aCustomMessageId*/,
		const TDesC8& /*aCustomMessage*/ )
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	SetupStatusPaneL();
	
				
	if ( iExerciseContainer == NULL )
		{
		iExerciseContainer = CreateContainerL();
		iExerciseContainer->SetMopParent( this );
		AppUi()->AddToStackL( *this, iExerciseContainer );
		} 
	// ]]] end generated region [Generated Contents]
	
	}

/**
 */
void CExerciseContainerView::DoDeactivate()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	CleanupStatusPane();
	
	if ( iExerciseContainer != NULL )
		{
		AppUi()->RemoveFromViewStack( *this, iExerciseContainer );
		delete iExerciseContainer;
		iExerciseContainer = NULL;
		}
	// ]]] end generated region [Generated Contents]
	
	}

/** 
 * Handle status pane size change for this view (override)
 */
void CExerciseContainerView::HandleStatusPaneSizeChange()
	{
	CAknView::HandleStatusPaneSizeChange();
	
	// this may fail, but we're not able to propagate exceptions here
	TInt result;
	TRAP( result, SetupStatusPaneL() ); 
	
	// [[[ begin generated region: do not modify [Generated Code]
	// ]]] end generated region [Generated Code]
	
	}

// [[[ begin generated function: do not modify
void CExerciseContainerView::SetupStatusPaneL()
	{
	// reset the context pane
	TUid contextPaneUid = TUid::Uid( EEikStatusPaneUidContext );
	CEikStatusPaneBase::TPaneCapabilities subPaneContext = 
		StatusPane()->PaneCapabilities( contextPaneUid );
	if ( subPaneContext.IsPresent() && subPaneContext.IsAppOwned() )
		{
		CAknContextPane* context = static_cast< CAknContextPane* > ( 
			StatusPane()->ControlL( contextPaneUid ) );
		context->SetPictureToDefaultL();
		}
	
	// setup the title pane
	TUid titlePaneUid = TUid::Uid( EEikStatusPaneUidTitle );
	CEikStatusPaneBase::TPaneCapabilities subPaneTitle = 
		StatusPane()->PaneCapabilities( titlePaneUid );
	if ( subPaneTitle.IsPresent() && subPaneTitle.IsAppOwned() )
		{
		CAknTitlePane* title = static_cast< CAknTitlePane* >( 
			StatusPane()->ControlL( titlePaneUid ) );
		TResourceReader reader;
		iEikonEnv->CreateResourceReaderLC( reader, R_EXERCISE_CONTAINER_TITLE_RESOURCE );
		title->SetFromResourceL( reader );
		CleanupStack::PopAndDestroy(); // reader internal state
		}
				
	}

// ]]] end generated function

// [[[ begin generated function: do not modify
void CExerciseContainerView::CleanupStatusPane()
	{
	}

// ]]] end generated function

/**
 *	Creates the top-level container for the view.  You may modify this method's
 *	contents and the CExerciseContainer::NewL() signature as needed to initialize the
 *	container, but the signature for this method is fixed.
 *	@return new initialized instance of CExerciseContainer
 */
CExerciseContainer* CExerciseContainerView::CreateContainerL()
	{
	return CExerciseContainer::NewL( ClientRect(), NULL, this );
	}
TInt CExerciseContainerView::RunDataQuery1L(//get a dialog and make data to aData
			TDes& aData,
		    //HBufC& aData,	
		TBool aUseDefaults,
			const TDesC* aOverridePrompt )
		{
		if ( aUseDefaults )
			{
			HBufC* text = StringLoader::LoadLC( R_EXERCISE_CONTAINER_EDIT1 );//load content from resourec's file
			aData.Copy( *text );//get the data
			CleanupStack::PopAndDestroy( text );
			}

		CAknTextQueryDialog* queryDialog = CAknTextQueryDialog::NewL( aData );

		if ( aOverridePrompt != NULL )
			{
			CleanupStack::PushL( queryDialog );
			queryDialog->SetPromptL( *aOverridePrompt );
			CleanupStack::Pop(); 
			}

		return queryDialog->ExecuteLD( R_EXERCISE_CONTAINER_DATA_QUERY1 );//run it 
		}



/*case EExerciseContainerView_003MenuItemCommand:
			{
			RFs fs;
			User::LeaveIfError(fs.Connect());
			RFile file;
			User::LeaveIfError(file.Open(fs, KFileName, EFileRead));
			TBuf8<128> buf8;
			//UTF8<128> ubuf8;
			//TBuf8 buf8=static_cast<TBuf8>(ubf8);
			
			file.Read(buf8);
			HBufC* buf16=HBufC::NewLC(128);              //tou guo zhe lai shengcheng dui duixiang
			//TBuf16<128> buf16;
			//CnvUtfConverter::ConvertToUnicodeFromUtf8(buf16,buf8);//::ConvertFromUnicodeToUtf8(name,Name);

			TPtr ptr16=buf16->Des();                     //只有指针描述符具有这种函数
			ptr16.Copy(buf8);
			//HBufC* fileData = HBufC::NewLC(inputFileStream, 32);

			CAknInformationNote* informationNote;

			informationNote = new ( ELeave ) CAknInformationNote;  //弹出提示对话框
											// Show the information Note
			informationNote->ExecuteLD( *buf16);  //*buf16 为描述符地址
			//TBuf<256> buf16;
			//ConvGbk2Uni(buf8, buf16) ;
			TInt Len=ptr16.Length();
				             
			/*for(TInt i=1;i<Len;i++)           //把描述符的内容删除，但只有这种方法么？
			{
				            	
			ptr16.Delete(i,1);	            	
			Len=ptr16.Length();
			}/*/
			/*ptr16.Delete(0,Len-1);
			
			
			fs.Close();
			//CleanupStack::PopAndDestroy(3);       什么时候需要这个命令
			break;

			}
	default:
		break;
	}*/