hellocontainer.cpp

symbian中讲述的一个有关bookengine的简单例子

/*
* ============================================================================
*  Name     : CHelloContainer from CCoeControl, MCoeControlObserver
*  Part of  : Hello
*  Copyright (c) 2003 Nokia. All rights reserved.
* ============================================================================
*/

// INCLUDE FILES

#include <MyHello.rsg>
#include "MyHello.hrh"
#include "HelloContainer.h"

#include <eiklabel.h>	//for CEikLabel
#include <eikedwin.h>	//for CEikEdit
#include <barsread.h>	//for resource reader
#include <eikenv.h>		//for CEikonEnv

//用于函数：显示图片SetPicture()
#include "MyHelloAppUi.h"
#include <fbs.h>		//for CFbsBitmap
#include <MyHello.mbg>

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

// C++ default constructor can NOT contain any code, that
// might leave.
//
CHelloContainer::CHelloContainer()
{
	m_pLabel = NULL;
	m_pEdit = NULL;
	m_pRssEdit = NULL;
	m_pLabelPassword = NULL;
	m_nDrawEditRectFlag = 0;
}

// EPOC default constructor can leave.
void CHelloContainer::ConstructL(const TRect& aRect)
{
    CreateWindowL();
	
	//load chinese words
	TBuf<32> sNameLabel;
	CEikonEnv::Static()->ReadResource(sNameLabel, R_QTN_MH_HELLO_NAME_LABEL);
	
	//Label for User Name
	m_pLabel = new(ELeave) CEikLabel;
	m_pLabel->SetContainerWindowL(*this);
	m_pLabel->SetTextL(sNameLabel); //(_L("User Name :"));
	m_pLabel->SetExtent(TPoint(10,20), m_pLabel->MinimumSize());
	
	//load chinese words
	TBuf<32> sPasswordLabel;
	CEikonEnv::Static()->ReadResource(sPasswordLabel, R_QTN_MH_HELLO_PASSWORD_LABEL);
	
	//Label for PassWord
	m_pLabelPassword = new(ELeave) CEikLabel;
	m_pLabelPassword->SetContainerWindowL(*this);
	m_pLabelPassword->SetTextL(sPasswordLabel); //(_L("PassWord :"));
	m_pLabelPassword->SetExtent(TPoint(10,60), m_pLabel->MinimumSize());
	
	//Edit
	m_pEdit = new(ELeave) CEikEdwin;
	m_pEdit->SetContainerWindowL(*this);
	m_pEdit->ConstructL(EAknEditorFlagDefault, 10, 10, 1);
	m_pEdit->SetExtent(TPoint(70,20), TSize(80,20));
	m_pEdit->SetTextL(&_L("Input User Name!"));
	m_pEdit->SetFocus(ETrue);
	
	//Edit from RSS
	TResourceReader reader;
	iCoeEnv->CreateResourceReaderLC(reader, R_AKNEXEDITOR_HELLO_VIEW_EDWIN);
	m_pRssEdit = new(ELeave) CEikEdwin;
	m_pRssEdit->SetContainerWindowL(*this);
	m_pRssEdit->ConstructFromResourceL(reader);
	CleanupStack::PopAndDestroy();
	m_pRssEdit->SetAknEditorCurrentInputMode(EAknEditorNumericInputMode);//only Input number.
	m_pRssEdit->SetExtent(TPoint(70,60), TSize(80,20));
	m_pRssEdit->SetTextL(&_L("Edit from Rss: Pass Word!"));
	
    SetRect(aRect);
    ActivateL();
}

// Destructor
CHelloContainer::~CHelloContainer()
{
	MEM_FREE(m_pLabel);
	MEM_FREE(m_pEdit);
	MEM_FREE(m_pRssEdit);
	MEM_FREE(m_pLabelPassword);
}

// ---------------------------------------------------------
// CHelloContainer::FocusTo(TInt aCommand)
// Change foccused control.
// (other items were commented in a header).
// ---------------------------------------------------------
//

void CHelloContainer::FocusTo(TInt aCommand)
{
}

// ---------------------------------------------------------
// CHelloContainer::SizeChanged()
// Called by framework when the view size is changed
// (other items were commented in a header).
// ---------------------------------------------------------
//
void CHelloContainer::SizeChanged()
{
}

// ---------------------------------------------------------
// CHelloContainer::CountComponentControls() const
// (other items were commented in a header).
// ---------------------------------------------------------
//
TInt CHelloContainer::CountComponentControls() const
{
	//return 0; // return nbr of controls inside this container
	return 4;
}

// ---------------------------------------------------------
// CHelloContainer::ComponentControl(TInt aIndex) const
// (other items were commented in a header).
// ---------------------------------------------------------
//
CCoeControl* CHelloContainer::ComponentControl(TInt aIndex) const
{
	//return NULL;
	switch (aIndex)
	{
	case 0:
		{
			return m_pLabel;
		}
	case 1:
		{
			return m_pEdit;
		}
	case 2:
		{
			return m_pRssEdit;
		}
	case 3:
		{
			return m_pLabelPassword;
		}
	default:
		{
			return NULL;
		}
	}	
}

// ---------------------------------------------------------
// CHelloContainer::Draw(const TRect& aRect) const
// (other items were commented in a header).
// ---------------------------------------------------------
//
void CHelloContainer::Draw(const TRect& aRect) const
{
    CWindowGc& gc = SystemGc();

	//Draw the Client Area (Rect) by the Brush.
//     //gc.SetPenStyle(CGraphicsContext::ENullPen);
//     gc.SetBrushColor(KRgbGreen);
//     gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
//     gc.DrawRect(aRect);
// 
// 	//Draw the Client Area (Rect) by the Pen:
// 	gc.SetPenStyle(CGraphicsContext::ESolidPen);
// 	gc.SetPenColor(KRgbBlack);
// 	gc.SetPenSize(TSize(2,2));
// 	
// 	TRect rect;
// 	rect.SetRect(TPoint(0,0), TSize(176, 144));
// 	gc.DrawRect(rect);

	//Get the path of the mbm.
	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

	//Draw the backgroud with a bmp.
	//CFbsBitmap* bitmap = new(ELeave) CFbsBitmap();
	//bitmap->Load(pathMbm, EMbmMyhelloBack_1_icon);
	//gc.BitBlt(TPoint(0, 0), bitmap);
	//delete bitmap;

	CFbsBitmap* bitmap = iEikonEnv->CreateBitmapL(pathMbm, EMbmMyhelloBack_1_icon);
	gc.BitBlt(TPoint(0, 0), bitmap);
	MEM_FREE(bitmap);

	//Draw the Rect of the Edit of focus.
	switch (m_nDrawEditRectFlag)
	{
	case 0:
		{
			gc.DrawRect(TRect(TPoint(69,19), TSize(82,22)));
			break;
		}
	case 1:
		{
			gc.DrawRect(TRect(TPoint(69,59), TSize(82,22)));
			break;
		}
	}

	//gc.DrawLine(TPoint(69,40), TPoint(151,40));
	//gc.DrawLine(TPoint(69,80), TPoint(151,80));
}

// 显示图片
// void CHelloContainer::SetPicture(TInt aIndex)
// {
// 	//获得系统图形场景及控制矩形区域 
// 	CWindowGc& gc = SystemGc();
// 
// 	//建立绘制矩形区 
// 	TRect rect = TRect( TPoint(0, 0), TSize(176, 144));
// 	
// 	//激活图形场景 
// 	ActivateGc();
// 
// 	//使窗口失效 
// 	Window().Invalidate( rect ); 
// 	Window().BeginRedraw( rect );
// 	
// 	//绘制一幅位图
// 
// 	//获取多位图路径
// 	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
// 
// 	//加载一张位图
// 	CFbsBitmap* bitmap = new(ELeave)CFbsBitmap();
// 	bitmap->Load(pathMbm, aIndex);
// 	gc.BitBlt(TPoint(0, 0), bitmap);
// 	Window().EndRedraw(); 
// 	
// 	//终止图形场景的活动状态 
// 	DeactivateGc();
// 
// 	//释放位图空间
// 	MEM_FREE(bitmap);
// }

// ---------------------------------------------------------
// CHelloContainer::OfferKeyEventL(...)
// Notify key events to editors.
// (other items were commented in a header).
// ---------------------------------------------------------
//
TKeyResponse CHelloContainer::OfferKeyEventL(
											 const TKeyEvent& aKeyEvent, TEventCode aType)
{
	//return EKeyWasNotConsumed;
	if (m_pEdit)
	{
		if (m_pEdit->IsFocused())
		{
			if((aType == EEventKey) && (aKeyEvent.iCode == EKeyDownArrow))
			{
				m_pEdit->SetFocus(EFalse);
				m_pRssEdit->SetFocus(ETrue);
				m_nDrawEditRectFlag = 1;
				DrawNow();
				return EKeyWasConsumed;
			}
			return m_pEdit->OfferKeyEventL(aKeyEvent, aType);
		}
	}
	
	
	if (m_pRssEdit)
	{
		if (m_pRssEdit->IsFocused())
		{
			if((aType == EEventKey) && (aKeyEvent.iCode == EKeyUpArrow))
			{
				m_pEdit->SetFocus(ETrue);
				m_pRssEdit->SetFocus(EFalse);
				m_nDrawEditRectFlag = 0;
				DrawNow();
				return EKeyWasConsumed;
			}
			return m_pRssEdit->OfferKeyEventL(aKeyEvent, aType);
		}
	}
	
	return EKeyWasNotConsumed;
}


// ---------------------------------------------------------
// CHelloContainer::HandleControlEventL(
//     CCoeControl* aControl,TCoeEvent aEventType)
// (other items were commented in a header).
// ---------------------------------------------------------
//
void CHelloContainer::HandleControlEventL(
										  CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
{
}

void CHelloContainer::GetLoginName(TDes &aName)
{
	m_pEdit->GetText(aName);
}

// End of File