plaintexteditorcontainer.cpp

symbian s60 2rd简单而不简约的文本Editor编辑框源码

/**
* 
* @brief Definition of CPlainTextEditorContainer
*
* Copyright (c) EMCC Software Ltd 2003
* @version 1.0
*/

// INCLUDE FILES

// Class include
#include "PlainTextEditorContainer.h"

// System includes
#include <barsread.h> // TResourceReader
#include <eikedwin.h> // CEikEdwin
#include <PlainTextEditor.rsg> // resources


// CONSTANTS

// N.B. #define'd as DLL cannot contain writeable static data
#define KEditorPosition TPoint(0,0) 

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

/**
* Symbian OS 2nd phase constructor.  Creates a Window for the controls, which it contains.
* Constructs a label and adds it to the window, which it then activates.
* @param aRect The rectangle for this window
*/		
void CPlainTextEditorContainer::ConstructL(const TRect& aRect)
	{
	CreateWindowL();
	
	iEditor = new (ELeave) CEikEdwin;
	iEditor->SetContainerWindowL(*this);
	TResourceReader reader;
	iCoeEnv->CreateResourceReaderLC(reader, R_PLAINTEXTEDITOR_URLEDITOR);
	iEditor->ConstructFromResourceL(reader);
	CleanupStack::PopAndDestroy(); // reader
	iEditor->SetFocus(ETrue);

	SetRect(aRect);
	ActivateL();
	}

/**
* Symbian OS 2 phase constructor.
* Constructs the CPlainTextEditorContainer using the NewLC method, popping
* the constructed object from the CleanupStack before returning it.
* 
* @param aRect The rectangle for this window
* @return The newly constructed CPlainTextEditorContainer
*/
CPlainTextEditorContainer* CPlainTextEditorContainer::NewL(const TRect& aRect)
	{
	CPlainTextEditorContainer* self = CPlainTextEditorContainer::NewLC(aRect);
	CleanupStack::Pop(self);
	return self;
	}

/**
* Symbian OS 2 phase constructor.
* Constructs the CPlainTextEditorContainer using the constructor and ConstructL 
* method, leaving the constructed object on the CleanupStack before returning it.
* 
* @param aRect The rectangle for this window
* @return The newly constructed CPlainTextEditorContainer
*/
CPlainTextEditorContainer* CPlainTextEditorContainer::NewLC(const TRect& aRect)
	{
	CPlainTextEditorContainer* self = new (ELeave) CPlainTextEditorContainer;
	CleanupStack::PushL(self);
	self->ConstructL(aRect);
	return self;
	}

/** 
* Destructor.  Frees up memory for the iEditor.
*/
CPlainTextEditorContainer::~CPlainTextEditorContainer()
	{
	delete iEditor;
	}

/**
*	
* Called by framework when the view size is changed.  Resizes the
* iEditor accordingly.
*
*/
void CPlainTextEditorContainer::SizeChanged()
	{
	iEditor->SetExtent(KEditorPosition, iEditor->MinimumSize());
	}

/**
* Called by the framework in compound controls	
* @return The number of controls in this CPlainTextEditorContainer
*/
TInt CPlainTextEditorContainer::CountComponentControls() const
	{
	return 1; // return number of controls inside this container
	}

/**
* Called by the framework in compound controls	
* @param The index of the control to return
* @return The control for aIndex
*/
CCoeControl* CPlainTextEditorContainer::ComponentControl(TInt aIndex) const
	{
	switch (aIndex)
		{
		case 0:
			return iEditor;
		default:
			return NULL;
		}
	}

/**
* Called by the framework to draw this control.  Clears the area in 
* aRect.
* @param aRect in which to draw
*/
void CPlainTextEditorContainer::Draw(const TRect& aRect) const
	{
	CWindowGc& gc = SystemGc();
	gc.Clear(aRect);
	}

TKeyResponse CPlainTextEditorContainer::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)
	{
	if (iEditor)
		return iEditor->OfferKeyEventL(aKeyEvent, aType);
	else 
		return CCoeControl::OfferKeyEventL(aKeyEvent, aType);
	}

// End of File