/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:

* 

* Description:

*

*/

using System;

using System.Collections.Generic;

using System.Text;

using System.Drawing;

using System.Windows.Forms;

namespace SymbianUtils.Colour

{

    public static class ColourUtils

    {

        public static Color Lighten( Color aColour )

        {

            Color ret = ControlPaint.Light( aColour );

            return ret;

        }

        public static Color LightenMore( Color aColour )

        {

            Color ret = ControlPaint.LightLight( aColour );

            return ret;

        }

        public static Color Darken( Color aColour )

        {

            Color ret = ControlPaint.Dark( aColour );

            return ret;

        }

        public static Color Lighten( Color aColour, float aPercentage )

        {

            int r = aColour.R;

            int g = aColour.G;

            int b = aColour.B;

            //

            int amount = (int) ( 255.0f * aPercentage );

            //

            r = Math.Min( r + amount, 255 );

            g = Math.Min( g + amount, 255 );

            b = Math.Min( b + amount, 255 );

            //

            Color ret = Color.FromArgb( r, g, b );

            return ret;

        }

        public static Color Darken( Color aColour, float aPercentage )

        {

            int r = aColour.R;

            int g = aColour.G;

            int b = aColour.B;

            //

            int amount = (int) ( 255.0f * aPercentage );

            //

            r = Math.Max( r - amount, 0 );

            g = Math.Max( g - amount, 0 );

            b = Math.Max( b - amount, 0 );

            //

            Color ret = Color.FromArgb( r, g, b );

            return ret;

        }

    }

}