sysperfana/heapanalyser/Libraries/UI/HeapCtrlLib/Renderers/Contents/HeapCellRendererColourByIsolation.cs
changeset 8 15296fd0af4a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysperfana/heapanalyser/Libraries/UI/HeapCtrlLib/Renderers/Contents/HeapCellRendererColourByIsolation.cs	Tue Jun 15 12:47:20 2010 +0300
@@ -0,0 +1,185 @@
+/*
+* 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 System.Collections;
+using HeapLib;
+using HeapLib.Cells;
+using HeapLib.Array;
+using HeapLib.Relationships;
+using HeapLib.Reconstructor;
+using HeapCtrlLib.Interfaces;
+using HeapCtrlLib.Utilities;
+using HeapCtrlLib.Renderers;
+using HeapCtrlLib.Renderers.Contents.Bases;
+using SymbianUtils.Colour;
+using SymbianUtils.Graphics;
+using SymbianUtils.RawItems;
+
+namespace HeapCtrlLib.Renderers.Contents
+{
+    internal class HeapCellRendererColourByIsolation : HeapCellRendererByColour, IHeapCellRendererContent 
+    {
+        #region Constructors & destructor
+        public HeapCellRendererColourByIsolation()
+        {
+        }
+        #endregion
+
+        #region From IHeapCellRendererContent
+        public void Initialise( HeapCellArray aCells, HeapReconstructor aReconstructor, HeapDataRenderer aRenderer )
+        {
+            if  ( aReconstructor != null )
+            {
+                int min = aReconstructor.Statistics.StatsAllocated.CellNumberOfReferencesLowest.RelationshipManager.ReferencedBy.Count + 1;
+                double logMin = Math.Log( (double) min );
+                //
+                int max = aReconstructor.Statistics.StatsAllocated.CellNumberOfReferencesGreatest.RelationshipManager.ReferencedBy.Count + 1;
+                double logMax = Math.Log( (double) max );
+
+                iDomain = (float) ( logMax - logMin ); 
+            }
+        }
+
+        public void PrepareToNavigate( HeapRenderingNavigator aNavigator )
+        {
+            iLargestRectangleCalculator = new HeapCellLargestRectangleCalculator( aNavigator, 1 /* skip first box, start at 2nd box which has index 1 */ );
+        }
+
+        public void HeapCellRenderingComplete( Graphics aGraphics, HeapCell aCell, HeapCellMetaData aMetaData )
+        {
+            Color fillColour = ColourForHeapCell( aCell );
+            //
+            string text = aCell.SymbolStringWithoutDescriptorPrefix;
+            PaintBoxedTextWithLuminanceHandling( text, aGraphics, fillColour );
+        }
+
+        public void RenderingComplete( Graphics aGraphics )
+        {
+        }
+
+        public void PaintContent( Graphics aGraphics, HeapCellMetaData aMetaData, HeapCell aCell, uint aAddress, Point aPosition, Size aBoxSize, Size aPaddingSize )
+        {
+            // Get the cell colour that is associated with the cell symbol object type
+            aMetaData.CellBoxColor = ColourForHeapCell( aCell );
+
+            // Draw actual cell
+            SymRect boxRect = new SymRect( aPosition, aBoxSize );
+            boxRect.HalfOffset( aPaddingSize );
+            using ( SolidBrush brush = new SolidBrush( aMetaData.CellBoxColor ) )
+            {
+                aGraphics.FillRectangle( brush, boxRect.Rectangle );
+            }
+
+            // If first box, we show the number of inwards links to the cell
+            HeapCell.TRegion region = aMetaData.Region;
+            if ( region == HeapCell.TRegion.EHeader && aMetaData.CellBoxIndex == 0 )
+            {
+                boxRect.Inflate( KShrinkSize, KShrinkSize );
+
+                // Draw the fill
+                Color lightenColor = ColourUtils.LightenMore( aMetaData.CellBoxColor );
+                using ( SolidBrush brush = new SolidBrush( lightenColor ) )
+                {
+                    aGraphics.FillRectangle( brush, boxRect.Rectangle );
+                }
+                lightenColor = ColourUtils.Lighten( lightenColor );
+                using ( Pen borderPen = new Pen( lightenColor, KHeaderBoxWidth ) )
+                {
+                    aGraphics.DrawRectangle( borderPen, boxRect.Rectangle );
+                }
+
+                // Draw the count
+                int count = aCell.RelationshipManager.ReferencedBy.Count;
+                if ( count == 0 )
+                {
+                    PaintBoxedText( count.ToString(), aGraphics, Color.Red, boxRect );
+                }
+                else
+                {
+                    PaintBoxedTextWithLuminanceHandling( count.ToString(), aGraphics, Color.Black, boxRect );
+                }
+            }
+        }
+
+        public bool SupportsFiltering
+        {
+            get { return false; }
+        }
+
+        public void SetupFilters()
+        {
+        }
+        #endregion
+
+        #region Internal methods
+        private Color ColourForHeapCell( HeapCell aCell )
+        {
+            float rF = KRampBaselineColourStart.R;
+            float gF = KRampBaselineColourStart.G;
+            float bF = KRampBaselineColourStart.B;
+            //
+            float count = aCell.RelationshipManager.ReferencedBy.Count + 1.0f;
+            float val = (float) Math.Log( count );
+            val /= iDomain;
+            //
+            rF += ( ( KRampBaselineColourEnd.R - KRampBaselineColourStart.R ) * val );
+            gF += ( ( KRampBaselineColourEnd.G - KRampBaselineColourStart.G ) * val );
+            bF += ( ( KRampBaselineColourEnd.B - KRampBaselineColourStart.B ) * val );
+            //
+            int r = Math.Min( Math.Max( 0, (int) rF ), 255 );
+            int g = Math.Min( Math.Max( 0, (int) gF ), 255 );
+            int b = Math.Min( Math.Max( 0, (int) bF ), 255 );
+            //
+            return System.Drawing.Color.FromArgb( r, g, b );
+        }
+        #endregion
+
+        #region Internal constants
+        private Color KRampBaselineColourStart = Color.DarkBlue;
+        private Color KRampBaselineColourEnd = Color.Coral;
+        private const float KHeaderBoxWidth = 2.0f;
+        private const int KShrinkSize = -3;
+        private const float KBorderLightenAmount = 0.2f;
+        #endregion
+
+        #region Data members
+        private float iDomain = 0.01f;
+        #endregion
+    }
+}