hellocontainer.cpp

symbian中讲述的一个有关grid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
// ================= MEMBER FUNCTIONS =======================

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

// EPOC default constructor can leave.
void CHelloContainer::ConstructL(const TRect& aRect)
{
    CreateWindowL();
	
	//Label
	m_pLabel = new(ELeave) CEikLabel;
	m_pLabel->SetContainerWindowL(*this);
	m_pLabel->SetTextL(_L("User Name :"));
	m_pLabel->SetExtent(TPoint(10,20), 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);
}

// ---------------------------------------------------------
// 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 3;
}

// ---------------------------------------------------------
// 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;
			break;
		}
	case 1:
		{
			return m_pEdit;
			break;
		}
	case 2:
		{
			return m_pRssEdit;
			break;
		}
	default:
		{
			return NULL;
			break;
		}
	}	
}

// ---------------------------------------------------------
// CHelloContainer::Draw(const TRect& aRect) const
// (other items were commented in a header).
// ---------------------------------------------------------
//
void CHelloContainer::Draw(const TRect& aRect) const
{
    CWindowGc& gc = SystemGc();
    //gc.SetPenStyle(CGraphicsContext::ENullPen);
    gc.SetBrushColor(KRgbWhite);
    gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
    gc.DrawRect(aRect);
	
	gc.SetPenStyle(CGraphicsContext::ESolidPen);
	gc.SetPenColor(KRgbRed);
	gc.DrawLine(TPoint(50,50), TPoint(100,90));
}

// ---------------------------------------------------------
// 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);
				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);
				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