plaintexteditorcontainer.cpp

series60 应用程序开发的源代码 series60 应用程序开发的源代码

/**
* 
* @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