/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions are met:

*

* - Redistributions of source code must retain the above copyright notice,

*   this list of conditions and the following disclaimer.

* - Redistributions in binary form must reproduce the above copyright notice,

*   this list of conditions and the following disclaimer in the documentation

*   and/or other materials provided with the distribution.

* - Neither the name of Nokia Corporation nor the names of its contributors

*   may be used to endorse or promote products derived from this software

*   without specific prior written permission.

*

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

* POSSIBILITY OF SUCH DAMAGE.

* 

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

using System;

using System.Drawing;

using System.Collections.Generic;

using SymbianUtils.Graphics;

using HeapCtrlLib.Interfaces;

using HeapCtrlLib.Utilities;

using HeapCtrlLib.Renderers;

using HeapCtrlLib.Renderers.Utilities;

using HeapLib;

using HeapLib.Array;

using HeapLib.Cells;

using HeapLib.Reconstructor;

namespace HeapCtrlLib.Renderers.SelectionBorders

{

	internal class HeapCellRendererSelectionBorder : HeapCellRendererColour, IHeapCellRendererSelectionBorder

	{

        #region Constructors & destructor

		public HeapCellRendererSelectionBorder()

            : this( Color.Maroon, Color.Green )

		{

        }

        public HeapCellRendererSelectionBorder( Color aMouse, Color aKeyboard )

        {

            iColorForSelectionByKeyboard = aKeyboard;

            iColorForSelectionByMouse = aMouse;

        }

        #endregion

        #region API

        protected virtual void FlushLines( Graphics aGraphics, List<HeapCellRendererSelectionBorderItem> aLines )

        {

            int lineCount = aLines.Count;

            for ( int i = 0; i < lineCount; i++ )

            {

                HeapCellRendererSelectionBorderItem spec = aLines[ i ];

                spec.Draw( aGraphics );

            }

        }

        #endregion

        #region Properties

        protected virtual Color GetBorderProperties( THeapSelectionBorderType aType, out float aWidth )

        {

            Color ret = Color.Black;

            aWidth = 1.0f;

            //

            switch( aType )

            {

            default:

                break;

            case THeapSelectionBorderType.ESelectionKeyboard:

                aWidth = KBorderWidthSelectedCellByKeyboard;

                ret = iColorForSelectionByKeyboard;

                break;

            case THeapSelectionBorderType.ESelectionMouse:

                aWidth = KBorderWidthSelectedCellByMouse;

                ret = iColorForSelectionByMouse;

                break;

            }

            //

            return ret;

        }

        #endregion

        #region From IHeapCellBorderRenderer

        public void Initialise( HeapCellArray aCells, HeapReconstructor aReconstructor, HeapDataRenderer aRenderer )

        {

        }

        public void PrepareToNavigate( HeapRenderingNavigator aNavigator )

        {

        }

        public void HeapCellRenderingComplete( Graphics aGraphics, HeapCell aCell, HeapCellMetaData aMetaData )

        {

        }

        public void RenderingComplete( Graphics aGraphics )

        {

            FlushLines( aGraphics, Lines );

            iLines.Clear();

        }

        public void PaintSelectionBorder( Graphics aGraphics, HeapCellMetaData aMetaData, HeapCell aCell, uint aAddress, Point aPosition, Size aBoxSize, Size aPaddingSize, THeapSelectionBorderType aType )

        {

            float width;

            Color color = GetBorderProperties( aType, out width );

            SymRect rect = new SymRect( aPosition, aBoxSize + aPaddingSize );

            if ( aMetaData.Borders[ THeapCellBorderType.ELeft ] ) // Draw left-hand outline

            {

                PaintCellBorder( aGraphics, aMetaData, rect.TopLeft, rect.BottomLeft, aAddress, aCell, width, color, THeapCellBorderType.ELeft );

            }

            if  (  aMetaData.Borders[ THeapCellBorderType.ETop ] ) // Draw top-side outline

            {

                PaintCellBorder( aGraphics, aMetaData, rect.TopLeft, rect.TopRight, aAddress, aCell, width, color, THeapCellBorderType.ETop );

            }

            if  (  aMetaData.Borders[ THeapCellBorderType.ERight ] ) // Draw right-hand outline

            {

                PaintCellBorder( aGraphics, aMetaData, rect.TopRight, rect.BottomRight, aAddress, aCell, width, color, THeapCellBorderType.ERight );

            }

            if  (  aMetaData.Borders[ THeapCellBorderType.EBottom ] ) // Draw bottom-side outline

            {

                PaintCellBorder( aGraphics, aMetaData, rect.BottomLeft, rect.BottomRight, aAddress, aCell, width, color, THeapCellBorderType.EBottom );

            }

        }

        #endregion

        #region Internal constants

        private const float KBorderWidthSelectedCellByKeyboard = 3.0f;

        private const float KBorderWidthSelectedCellByMouse = 3.0f;

        #endregion

        #region Internal methods

        private List<HeapCellRendererSelectionBorderItem> Lines

        {

            get { return iLines; }

        }

        private void PaintCellBorder( Graphics aGraphics, HeapCellMetaData aMetaData, Point aStart, Point aEnd, uint aAddress, HeapCell aCell, float aWidth, Color aColour, THeapCellBorderType aType )

        {

            HeapCellRendererSelectionBorderItem spec = new HeapCellRendererSelectionBorderItem( aStart, aEnd, aWidth, aColour, aType );

            iLines.Add( spec );

        }

        #endregion

        #region Data members

        private readonly Color iColorForSelectionByKeyboard;

        private readonly Color iColorForSelectionByMouse;

        private List<HeapCellRendererSelectionBorderItem> iLines = new List<HeapCellRendererSelectionBorderItem>();

        #endregion

    }

}