/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - Initial contribution

*

* Contributors:

* Ixonos Plc

*

* Description: 

* Brightness plugin plugin base class.

*

*/

/// INCLUDES

#include "ImageEditorBrightnessPlugin.h"

#include "SingleParamControl.h"

#include <brightness.mbg>

/// CONSTANTS

_LIT (KPgnResourceFile, "brightness.rsc");

const long KParamMin   = -100;

const long KParamMax   = 100;

const long KParamStep  = 10;

const long KParamDef   = 0;

const TInt KBrightnessHSTitleIndex = 0;

//	brightness tag

_LIT (KBrightnessTag, "brightness ");

_LIT (KResourceDir, "\\resource\\apps\\");

//=============================================================================

EXPORT_C CImageEditorPluginBase * CreateImageEditorPlugin ()

{

	CImageEditorBrightnessPlugin * plugin = new (ELeave) CImageEditorBrightnessPlugin;

	CleanupStack::PushL(plugin);

	plugin->ConstructL();

	CleanupStack::Pop(); // plugin

    return plugin;

}

//=============================================================================

CImageEditorBrightnessPlugin::CImageEditorBrightnessPlugin () :

CImageEditorPluginBase()

{

}

//=============================================================================

void CImageEditorBrightnessPlugin::ConstructL ()

{

    CImageEditorPluginBase::ConstructL (KPgnResourcePath, KPgnResourceFile);

}

//=============================================================================

CImageEditorBrightnessPlugin::~CImageEditorBrightnessPlugin ()

{

    ReleasePlugin();

}

//=============================================================================

TInt CImageEditorBrightnessPlugin::SetProperty (

	TInt		/*aPropertyId*/,

	TDesC &		/*aPropertyValue*/

	)

{

	return KErrNotSupported;

}

//=============================================================================

TInt CImageEditorBrightnessPlugin::GetProperty (

	TInt		aPropertyId,

	TDes &		aPropertyValue

	)

{

	//	Clean buffer

	aPropertyValue.Zero();

	//	Copy data

	switch (aPropertyId)

	{

		case KCapParamStruct:

		{

        	aPropertyValue.Copy (KBrightnessTag);

        	aPropertyValue.AppendNum (iBrightness);

			return KErrNone;

		}

		default:

		{

			return CImageEditorPluginBase::GetProperty (aPropertyId, aPropertyValue);

		}

	}

}

//=============================================================================

TInt CImageEditorBrightnessPlugin::InitPluginL (

	const TRect &		aRect,

	CCoeControl *		aParent,

	CCoeControl *&		aPluginControl

	)

{

	ReleasePlugin();

	iControl = CSingleParamControl::NewL (aRect, aParent);

    ((CSingleParamControl *)iControl)->SetParObserver ( (MSingleParControlObserver*)this );

	aPluginControl = iControl;

	// initialize vertical slider

	((CSingleParamControl *)iControl)->SetSliderMinimumAndMaximum(KParamMin, KParamMax);

    ((CSingleParamControl *)iControl)->SetSliderStep(KParamStep);

	((CSingleParamControl *)iControl)->SetSliderPosition(KParamDef);

    TFileName iconFile (KResourceDir);

	TBuf<256> readbuf;  

	User::LeaveIfError ( GetProperty (KCapIconName, readbuf) );

	iconFile.Append(readbuf);

    CEikImage* icon = new (ELeave) CEikImage;

	icon->CreatePictureFromFileL(iconFile,

									EMbmBrightnessQgn_indi_imed_bright_super,

									EMbmBrightnessQgn_indi_imed_bright_super_mask);

	((CSingleParamControl *)iControl)->SetIcon(icon);	

	// Get caption from plugin properties

	User::LeaveIfError ( GetProperty (KCapPluginParamNames, readbuf) );

	TLex parser;

	parser.Assign (readbuf);

    TInt tempval = 0;

	parser.Val ( tempval );

    CDesCArray * parameters = (CDesCArray *)tempval;

    ((CSingleParamControl *)iControl)->SetCaption( (*parameters)[KBrightnessHSTitleIndex] );

	return KErrNone;

}

//=============================================================================

void CImageEditorBrightnessPlugin::ProcessImageL (CEditorImage * /*aImage*/ )

{

	// Own image processing functionality here

}

//=============================================================================

void CImageEditorBrightnessPlugin::ReleasePlugin ()

{

    delete iControl;

    iControl = 0;

}

//=============================================================================

void CImageEditorBrightnessPlugin::ParamOperation (const TParamOperation aOperation)

{

    switch (aOperation)

    {

        case EParamOperationSubtract:

        {

            iBrightness -= KParamStep;

            if ( iBrightness < KParamMin )

            {

                iBrightness = KParamMin;

            }

    	    break;

        }

        case EParamOperationAdd:

        {

            iBrightness += KParamStep;

            if ( iBrightness > KParamMax )

            {

                iBrightness = KParamMax;

            }

    	    break;

        }

        case EParamOperationDefault:

        {

        	iBrightness = KParamDef;

    	    break;

        }

        default:

        {

    	    break;

        }

    }

}

//=============================================================================

TReal CImageEditorBrightnessPlugin::GetParam () const

{

    return (TReal)( (TReal)iBrightness / (KParamMax - KParamMin) );

}

// End of File