diff -r 8e12a575a9b5 -r 15296fd0af4a sysperfana/heapanalyser/Libraries/UI/HeapCtrlLib/Utilities/HeapRenderingNavigator.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysperfana/heapanalyser/Libraries/UI/HeapCtrlLib/Utilities/HeapRenderingNavigator.cs	Tue Jun 15 12:47:20 2010 +0300
@@ -0,0 +1,203 @@
+/*
+* 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
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* 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 HeapLib;
+using HeapLib.Cells;
+using HeapLib.Array;
+
+namespace HeapCtrlLib.Utilities
+{
+	public class HeapRenderingNavigator
+	{
+        #region Delegates
+        public delegate void NavBegin();
+        public delegate void NavEnd();
+        public delegate void NavHeapCellBegin( HeapCell aCell, uint aAddress, Point aPosition, Size aDimensions, Size aBoxSize, Size aPadding );
+        public delegate void NavHeapCellEnd( HeapCell aCell, HeapCellMetaData aMetaData, uint aAddress, Point aPosition, Size aDimensions, Size aBoxSize, Size aPadding );
+        public delegate void NavNewRowHeader( uint aAddress, Point aPosition, Size aDimensions, Size aBoxSize, Size aPadding );
+        public delegate void NavNewRowBody( HeapCellMetaData aMetaData, uint aAddress, Point aPosition, Size aDimensions, Size aBoxSize, Size aPadding );
+        public delegate void NavNewColumn( HeapCell aCell, HeapCellMetaData aMetaData, uint aAddress, Point aPixelPos, Point aBoxPos, Size aDimensions, Size aBoxSize, Size aPadding );
+        #endregion
+
+        #region Events
+        public event NavBegin iNavBegin;
+        public event NavEnd iNavEnd;
+        public event NavHeapCellBegin iNavHeapCellBegin;
+        public event NavHeapCellEnd iNavHeapCellEnd;
+        public event NavNewRowHeader iNavNewRowHeader;
+        public event NavNewRowBody iNavNewRowBody;
+        public event NavNewColumn iNavNewColumn;
+        #endregion
+
+        #region Constructors & destructor
+		public HeapRenderingNavigator( HeapCellArray aCells )
+		{
+            iCells = aCells;
+            //
+            iMetaData = new HeapCellMetaData( this );
+		}
+        #endregion
+
+        #region Properties
+        public HeapCellArray Cells
+        {
+            get { return iCells; }
+        }
+        #endregion
+
+        #region API
+        public void Navigate( int aStartingCellIndex, uint aStartingAddress, int aHeaderTextWidth, Point aStartOffset, Size aDimensions, Size aBoxSize, Size aPadding )
+        {
+            // This is the size of the cell including padding
+            Size cellSizeIncPadding = aBoxSize + aPadding;
+            
+            if  ( Cells.Count > 0 )
+            {
+                // The co-ordinates at which we will render a box (or header).
+                Point pos = new Point( aStartOffset.X, aStartOffset.Y - cellSizeIncPadding.Height );
+
+                // The index of the current heap cell within the iCells data structure.
+                // We start one before the requested cell, since we immediately skip
+                // on to the next one during the initialisation phase.
+                int cellIndex = aStartingCellIndex - 1;
+
+                // The total number of cells we have to work with
+                int cellCount = Cells.Count;
+
+                // The cell we are rendering. This changes as we move through the capture data.
+                HeapCell cell = null;
+
+                // The address of the currently paining box
+                uint address = aStartingAddress;
+
+                // Notify that we are starting.
+                if  ( iNavBegin != null )
+                {
+                    iNavBegin();
+                }
+
+                // Draw the cells
+                bool abort = false;
+                for( int row = 0; row < aDimensions.Height && !abort; row++ )
+                {
+                    // Handle the header at the start of each row
+                    pos.X = aStartOffset.X;
+                    pos.Y += cellSizeIncPadding.Height;
+                    if  ( iNavNewRowHeader != null )
+                    {
+                        iNavNewRowHeader( address, pos, aDimensions, aBoxSize, aPadding );
+                    }
+
+                    // Move forwards, past the header
+                    pos.X += aHeaderTextWidth;
+                    if  ( iNavNewRowBody != null )
+                    {
+                        iNavNewRowBody( iMetaData, address, pos, aDimensions, aBoxSize, aPadding );
+                    }
+
+                    // Prepare for columns in this row
+                    //System.Diagnostics.Debug.WriteLine( "Nav[" /*+ col.ToString("d2")*/ + "00," + row.ToString("d2") + "], ");
+                    //System.Diagnostics.Debug.Write( ".");
+                    for( int col = 0; col < aDimensions.Width && !abort; col++ )
+                    {
+                        // Do we need to also move to the next cell?
+                        if  ( cell == null || cell.RegionForAddress( address ) == HeapCell.TRegion.EAfterCell )
+                        {
+                            // Notify finishing a cell
+                            if  ( cell != null && iNavHeapCellEnd != null )
+                            {
+                                iNavHeapCellEnd( cell, iMetaData, address, pos, aDimensions, aBoxSize, aPadding );
+                            }
+
+                            if  ( cellIndex < cellCount - 1 )
+                            {
+                                // Get next cell
+                                cell = Cells[ ++cellIndex ];
+
+                                // Notify starting a cell
+                                if  ( iNavHeapCellBegin != null )
+                                {
+                                    iNavHeapCellBegin( cell, address, pos, aDimensions, aBoxSize, aPadding );
+                                }
+                            }
+                            else
+                            {
+                                abort = true;
+                                break;
+                            }
+                        }
+                        //
+                        if ( !abort )
+                        {
+                            // Notify starting a new box
+                            if  ( iNavNewColumn != null )
+                            {
+                                iNavNewColumn( cell, iMetaData, address, pos, new Point( col, row ), aDimensions, aBoxSize, aPadding );
+                            }
+                          
+                            // Move to next address & position
+                            pos.X += cellSizeIncPadding.Width;
+                            address += SymbianUtils.RawItems.RawItem.KSizeOfOneRawItemInBytes;
+                        }
+                    }
+                }
+
+                if  ( !abort )
+                {
+                    if  ( cell != null && iNavHeapCellEnd != null )
+                    {
+                        iNavHeapCellEnd( cell, iMetaData, address, pos, aDimensions, aBoxSize, aPadding );
+                    }
+                }
+
+                // Notify that we are ending
+                if  ( iNavEnd != null )
+                {
+                    iNavEnd();
+                }
+            }
+        }
+        #endregion
+
+        #region Data members
+        private readonly HeapCellArray iCells;
+        private readonly HeapCellMetaData iMetaData;
+        #endregion
+    }
+}