dialog.cpp

symbian下的几个小例子。。很值得学习

// dialog.cpp
//
// Copyright (c) Symbian Software Ltd 1999 - 2007.  All rights reserved.
//

/*======================================================
    File: dialog.cpp

    This file contains the dialog class.

=======================================================*/


#include "SimpleEx.h"
#include "SimpleEx.hrh"
#include "eikedwin.h"
#include <QikCommand.h>
#include <eikedwin.h>
#include <eikseced.h>
#include <eikchlst.h>



/**
Creates, constructs, execute and destroys the dialog.
*/
TInt CSimpleExDialog::RunDlgLD(TDes& aText, TRgb& aColor)
    {
    CSimpleExDialog* self = new (ELeave) CSimpleExDialog(aText, aColor);
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop();
    return self->ExecuteLD(R_SIMPLEEX_DIALOG);
    }

/**
Constructor for the dialog.
*/
CSimpleExDialog::CSimpleExDialog(TDes& aText, TRgb& aColor) 
: iCmdManager(CQikCommandManager::Static(*iCoeEnv)), iText(aText), iColor(aColor)
    {
    }

/**
Destructor for the dialog
*/
CSimpleExDialog::~CSimpleExDialog()
    {
    }

/**
2nd stage construction of the dialog.
*/
void CSimpleExDialog::ConstructL()
    {
    }

/**
Handles all commands in the dialog.
Called by the UI framework when a command has been issued.
The command Ids are defined in the .hrh file.

@param aCommand The command to be executed
*/
const TRgb colorList[4]={KRgbBlack,KRgbRed,KRgbGreen,KRgbBlue};

void CSimpleExDialog::PreLayoutDynInitL()
    {
    CEikEdwin* edwin = LocateControlByUniqueHandle<CEikEdwin>(ESimpleExText);
    edwin->SetTextL(&iText); 
    TInt currColorIndex=0;
    for (TInt i=0;i<4;i++)
        {
        if (iColor==colorList[i])
            {
            currColorIndex=i;
            break;
            }
        }
    CEikChoiceList* chlist = LocateControlByUniqueHandle<CEikChoiceList>(ESimpleExColor);
    chlist->SetCurrentItem(currColorIndex); 
    }

void CSimpleExDialog::HandleCommandL(CQikCommand& aCommand)
    {
    switch(aCommand.Id())
        {
        case EDialogDoneCmd:
            {

                // Signals that the dialog should close with the command id as value
            const CEikEdwin* edwin = LocateControlByUniqueHandle<const CEikEdwin>(ESimpleExText);
            edwin->GetText(iText); 
            const CEikChoiceList* chlist = LocateControlByUniqueHandle<const CEikChoiceList>(ESimpleExColor);

            TInt cIndex = chlist->CurrentItem();
            iColor = colorList[cIndex];
            CloseDialog(aCommand.Id());
            break;
            }
        default:
            {
            CQikSimpleDialog::HandleCommandL(aCommand);
            break;
            }
        }
    }