v1.0

SmartThreadPool v1.0

UsageControl/AssemblyInfo.cs

@@ -0,0 +1,58 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+//
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+//
+[assembly: AssemblyTitle("")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]		
+
+//
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers 
+// by using the '*' as shown below:
+
+[assembly: AssemblyVersion("1.0.*")]
+
+//
+// In order to sign your assembly you must specify a key to use. Refer to the 
+// Microsoft .NET Framework documentation for more information on assembly signing.
+//
+// Use the attributes below to control which key is used for signing. 
+//
+// Notes: 
+//   (*) If no key is specified, the assembly is not signed.
+//   (*) KeyName refers to a key that has been installed in the Crypto Service
+//       Provider (CSP) on your machine. KeyFile refers to a file which contains
+//       a key.
+//   (*) If the KeyFile and the KeyName values are both specified, the 
+//       following processing occurs:
+//       (1) If the KeyName can be found in the CSP, that key is used.
+//       (2) If the KeyName does not exist and the KeyFile does exist, the key 
+//           in the KeyFile is installed into the CSP and used.
+//   (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
+//       When specifying the KeyFile, the location of the KeyFile should be
+//       relative to the project output directory which is
+//       %Project Directory%\obj\<configuration>. For example, if your KeyFile is
+//       located in the project directory, you would specify the AssemblyKeyFile 
+//       attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
+//   (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
+//       documentation for more information on this.
+//
+[assembly: AssemblyDelaySign(false)]
+[assembly: AssemblyKeyFile("")]
+[assembly: AssemblyKeyName("")]

UsageControl/UsageControl.cs

@@ -0,0 +1,327 @@
+using System;
+using System.Collections;
+using System.ComponentModel;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Data;
+using System.Windows.Forms;
+
+namespace UsageControl
+{
+	/// <summary>
+	/// Summary description for UsageControl.
+	/// </summary>
+	public class UsageControl : System.Windows.Forms.UserControl
+	{
+		private System.ComponentModel.IContainer components = null;
+		
+		private const int ovalWidth = 18;
+		private const int columns = 2;
+
+		private int fixedWidth;
+		private int rows = 1; 
+
+		private int min = 0;	// Minimum value for progress range
+		private int max = 100;	// Maximum value for progress range
+		private int val1 = 0;	// Current progress
+		private int val2 = 0;	// Current progress
+
+		public UsageControl()
+		{
+			// This call is required by the Windows.Forms Form Designer.
+			InitializeComponent();
+
+			EnableDoubleBuffering();
+			fixedWidth = 2 + (ovalWidth+1)*columns + 1;
+		}
+
+		/// <summary> 
+		/// Clean up any resources being used.
+		/// </summary>
+		protected override void Dispose( bool disposing )
+		{
+			if( disposing )
+			{
+				if(components != null)
+				{
+					components.Dispose();
+				}
+			}
+			base.Dispose( disposing );
+		}
+
+		private void EnableDoubleBuffering()
+		{
+			// Set the value of the double-buffering style bits to true.
+			this.SetStyle(ControlStyles.DoubleBuffer | 
+				ControlStyles.UserPaint | 
+				ControlStyles.AllPaintingInWmPaint,
+				true);
+			this.UpdateStyles();
+		}
+
+		#region Component Designer generated code
+		/// <summary> 
+		/// Required method for Designer support - do not modify 
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			// 
+			// UsageControl
+			// 
+			this.BackColor = System.Drawing.Color.Black;
+			this.Name = "UsageControl";
+			this.Size = new System.Drawing.Size(192, 160);
+
+		}
+		#endregion
+
+		protected override void OnResize(EventArgs e)
+		{
+			Width = fixedWidth;
+			rows = (ClientRectangle.Height / 4) - 1;
+			// Invalidate the control to get a repaint.
+			this.Invalidate();
+		}
+
+		protected override void OnPaint(PaintEventArgs e)
+		{
+			Graphics g = e.Graphics;
+
+			int percent1 = ((val1 - min) * 100) / (max - min);
+			int percent2 = ((val2 - min) * 100) / (max - min);
+
+			int filledCount1 = (rows * percent1) / 100;
+			int filledCount2 = (rows * percent2) / 100;
+			int diff = Math.Abs(filledCount1 - filledCount2);
+
+			int emptyCount = rows - Math.Max(filledCount1, filledCount2);
+
+			int i = 0;
+
+			for(i = 0; i < filledCount1; ++i)
+			{
+				for(int j = 0; j < columns; ++j)
+				{
+					DrawOval(
+						g, 
+						Pens.LawnGreen,
+						2 + j*(1+ovalWidth), 
+						ClientRectangle.Bottom - 5 - i*4);
+				}
+			}
+
+			for(; i < filledCount2; ++i)
+			{
+				for(int j = 0; j < columns; ++j)
+				{
+					DrawOval(
+						g, 
+						Pens.Red,
+						2 + j*(1+ovalWidth), 
+						ClientRectangle.Bottom - 5 - i*4);
+				}
+			}
+
+			for(; i < rows; ++i)
+			{
+				for(int j = 0; j < columns; ++j)
+				{
+					DrawOval(
+						g, 
+						Pens.Green,
+						2 + j*(1+ovalWidth), 
+						ClientRectangle.Bottom - 5 - i*4);
+				}
+			}
+
+			// Draw a three-dimensional border around the control.
+			Draw3DBorder(g);
+
+			// Clean up.
+			//g.Dispose();
+			base.OnPaint (e);
+		}
+
+		private void DrawOval(Graphics g, Pen pen, int x, int y)
+		{
+			g.DrawLine(pen, x+1 , y, x+ovalWidth-2, y);
+			g.DrawLine(pen, x, y+1, x+ovalWidth-1, y+1);
+			g.DrawLine(pen, x+1, y+2, x+ovalWidth-2, y+2);
+		}
+
+		public int Maximum
+		{
+			get
+			{
+				return max;
+			}
+
+			set
+			{
+				// Make sure that the maximum value is never set lower than the minimum value.
+				if (value < min)
+				{
+					min = value;
+				}
+
+				max = value;
+
+				// Make sure that value is still in range.
+				if (val1 > max)
+				{
+					val1 = max;
+				}
+
+				// Invalidate the control to get a repaint.
+				this.Invalidate();
+			}
+		}
+
+		public int Value1
+		{
+			get
+			{
+				return val1;
+			}
+
+			set
+			{
+				int oldValue = val1;
+
+				// Make sure that the value does not stray outside the valid range.
+				if (value < min)
+				{
+					val1 = min;
+				}
+				else if (value > max)
+				{
+					val1 = max;
+				}
+				else
+				{
+					val1 = value;
+				}
+				Invalidate();
+/*
+				// Invalidate only the changed area.
+				float percent;
+
+				Rectangle newValueRect = this.ClientRectangle;
+				Rectangle oldValueRect = this.ClientRectangle;
+
+				// Use a new value to calculate the rectangle for progress.
+				percent = (float)(val1 - min) / (float)(max - min);
+				newValueRect.Width = (int)((float)newValueRect.Width * percent);
+
+				// Use an old value to calculate the rectangle for progress.
+				percent = (float)(oldValue - min) / (float)(max - min);
+				oldValueRect.Width = (int)((float)oldValueRect.Width * percent);
+
+				Rectangle updateRect = new Rectangle();
+
+				// Find only the part of the screen that must be updated.
+				if (newValueRect.Width > oldValueRect.Width)
+				{
+					updateRect.X = oldValueRect.Size.Width;
+					updateRect.Width = newValueRect.Width - oldValueRect.Width;
+				}
+				else
+				{
+					updateRect.X = newValueRect.Size.Width;
+					updateRect.Width = oldValueRect.Width - newValueRect.Width;
+				}
+
+				updateRect.Height = this.Height;
+
+				// Invalidate the intersection region only.
+				this.Invalidate(updateRect);
+*/
+			}
+		}
+
+		public int Value2
+		{
+			get
+			{
+				return val2;
+			}
+
+			set
+			{
+				int oldValue = val2;
+
+				// Make sure that the value does not stray outside the valid range.
+				if (value < min)
+				{
+					val2 = min;
+				}
+				else if (value > max)
+				{
+					val2 = max;
+				}
+				else
+				{
+					val2 = value;
+				}
+				Invalidate();
+
+				/*
+								// Invalidate only the changed area.
+								float percent;
+
+								Rectangle newValueRect = this.ClientRectangle;
+								Rectangle oldValueRect = this.ClientRectangle;
+
+								// Use a new value to calculate the rectangle for progress.
+								percent = (float)(val1 - min) / (float)(max - min);
+								newValueRect.Width = (int)((float)newValueRect.Width * percent);
+
+								// Use an old value to calculate the rectangle for progress.
+								percent = (float)(oldValue - min) / (float)(max - min);
+								oldValueRect.Width = (int)((float)oldValueRect.Width * percent);
+
+								Rectangle updateRect = new Rectangle();
+
+								// Find only the part of the screen that must be updated.
+								if (newValueRect.Width > oldValueRect.Width)
+								{
+									updateRect.X = oldValueRect.Size.Width;
+									updateRect.Width = newValueRect.Width - oldValueRect.Width;
+								}
+								else
+								{
+									updateRect.X = newValueRect.Size.Width;
+									updateRect.Width = oldValueRect.Width - newValueRect.Width;
+								}
+
+								updateRect.Height = this.Height;
+
+								// Invalidate the intersection region only.
+								this.Invalidate(updateRect);
+				*/
+			}
+		}
+
+		private void Draw3DBorder(Graphics g)
+		{
+			int PenWidth = (int)Pens.White.Width;
+
+			g.DrawLine(Pens.DarkGray,
+				new Point(this.ClientRectangle.Left, this.ClientRectangle.Top),
+				new Point(this.ClientRectangle.Width - PenWidth, this.ClientRectangle.Top));
+			g.DrawLine(Pens.DarkGray,
+				new Point(this.ClientRectangle.Left, this.ClientRectangle.Top),
+				new Point(this.ClientRectangle.Left, this.ClientRectangle.Height - PenWidth));
+			g.DrawLine(Pens.White,
+				new Point(this.ClientRectangle.Left, this.ClientRectangle.Height - PenWidth),
+				new Point(this.ClientRectangle.Width - PenWidth, this.ClientRectangle.Height - PenWidth));
+			g.DrawLine(Pens.White,
+				new Point(this.ClientRectangle.Width - PenWidth, this.ClientRectangle.Top),
+				new Point(this.ClientRectangle.Width - PenWidth, this.ClientRectangle.Height - PenWidth));
+		}
+
+
+	}
+}

UsageControl/UsageControl.csproj

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+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ProjectType>Local</ProjectType>
+    <ProductVersion>8.0.50727</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{C11A4561-CCB5-4C96-8DF2-B804031D89D8}</ProjectGuid>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ApplicationIcon>
+    </ApplicationIcon>
+    <AssemblyKeyContainerName>
+    </AssemblyKeyContainerName>
+    <AssemblyName>UsageControl</AssemblyName>
+    <AssemblyOriginatorKeyFile>
+    </AssemblyOriginatorKeyFile>
+    <DefaultClientScript>JScript</DefaultClientScript>
+    <DefaultHTMLPageLayout>Grid</DefaultHTMLPageLayout>
+    <DefaultTargetSchema>IE50</DefaultTargetSchema>
+    <DelaySign>false</DelaySign>
+    <OutputType>Library</OutputType>
+    <RootNamespace>UsageControl</RootNamespace>
+    <RunPostBuildEvent>OnBuildSuccess</RunPostBuildEvent>
+    <StartupObject>
+    </StartupObject>
+    <FileUpgradeFlags>
+    </FileUpgradeFlags>
+    <UpgradeBackupLocation>
+    </UpgradeBackupLocation>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <OutputPath>bin\Debug\</OutputPath>
+    <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
+    <BaseAddress>285212672</BaseAddress>
+    <CheckForOverflowUnderflow>false</CheckForOverflowUnderflow>
+    <ConfigurationOverrideFile>
+    </ConfigurationOverrideFile>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DocumentationFile>
+    </DocumentationFile>
+    <DebugSymbols>true</DebugSymbols>
+    <FileAlignment>4096</FileAlignment>
+    <NoStdLib>false</NoStdLib>
+    <NoWarn>
+    </NoWarn>
+    <Optimize>false</Optimize>
+    <RegisterForComInterop>false</RegisterForComInterop>
+    <RemoveIntegerChecks>false</RemoveIntegerChecks>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <WarningLevel>4</WarningLevel>
+    <DebugType>full</DebugType>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <OutputPath>bin\Release\</OutputPath>
+    <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
+    <BaseAddress>285212672</BaseAddress>
+    <CheckForOverflowUnderflow>false</CheckForOverflowUnderflow>
+    <ConfigurationOverrideFile>
+    </ConfigurationOverrideFile>
+    <DefineConstants>TRACE</DefineConstants>
+    <DocumentationFile>
+    </DocumentationFile>
+    <DebugSymbols>false</DebugSymbols>
+    <FileAlignment>4096</FileAlignment>
+    <NoStdLib>false</NoStdLib>
+    <NoWarn>
+    </NoWarn>
+    <Optimize>true</Optimize>
+    <RegisterForComInterop>false</RegisterForComInterop>
+    <RemoveIntegerChecks>false</RemoveIntegerChecks>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <WarningLevel>4</WarningLevel>
+    <DebugType>none</DebugType>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System">
+      <Name>System</Name>
+    </Reference>
+    <Reference Include="System.Data">
+      <Name>System.Data</Name>
+    </Reference>
+    <Reference Include="System.Drawing">
+      <Name>System.Drawing</Name>
+    </Reference>
+    <Reference Include="System.Windows.Forms">
+      <Name>System.Windows.Forms</Name>
+    </Reference>
+    <Reference Include="System.Xml">
+      <Name>System.XML</Name>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="AssemblyInfo.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="UsageControl.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
+    <Compile Include="UsageHistoryControl.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
+    <EmbeddedResource Include="UsageControl.resx">
+      <DependentUpon>UsageControl.cs</DependentUpon>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <EmbeddedResource Include="UsageHistoryControl.resx">
+      <DependentUpon>UsageHistoryControl.cs</DependentUpon>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup>
+    <PreBuildEvent>
+    </PreBuildEvent>
+    <PostBuildEvent>
+    </PostBuildEvent>
+  </PropertyGroup>
+</Project>

UsageControl/UsageControl.resx

@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 1.3
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">1.3</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1">this is my long string</data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        [base64 mime encoded serialized .NET Framework object]
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        [base64 mime encoded string representing a byte array form of the .NET Framework object]
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used forserialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>1.3</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="$this.TrayLargeIcon" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.Locked" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.SnapToGrid" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </data>
+  <data name="$this.DrawGrid" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </data>
+  <data name="$this.TrayHeight" type="System.Int32, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>80</value>
+  </data>
+  <data name="$this.Language" type="System.Globalization.CultureInfo, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>(Default)</value>
+  </data>
+  <data name="$this.Localizable" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.Name">
+    <value>UsageControl</value>
+  </data>
+  <data name="$this.DefaultModifiers" type="System.CodeDom.MemberAttributes, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>Private</value>
+  </data>
+  <data name="$this.GridSize" type="System.Drawing.Size, System.Drawing, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>8, 8</value>
+  </data>
+</root>

UsageControl/UsageHistoryControl.cs

@@ -0,0 +1,191 @@
+using System;
+using System.Collections;
+using System.ComponentModel;
+using System.Drawing;
+using System.Data;
+using System.Windows.Forms;
+
+namespace UsageControl
+{
+	/// <summary>
+	/// Summary description for UsageHistoryControl.
+	/// </summary>
+	public class UsageHistoryControl : System.Windows.Forms.UserControl
+	{
+		/// <summary> 
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.Container components = null;
+
+		private const int squareWidth = 12;
+		private const int maxLastValuesCount = 2000;
+		private const int shiftStep = 3;
+
+		private int shift = 0;
+
+		private int [] lastValues1 = new int[maxLastValuesCount];
+		private int [] lastValues2 = new int[maxLastValuesCount];
+		private int nextValueIndex;
+		private int lastValuesCount;
+
+		private int max = 100;
+		private int min = 0;
+
+		public UsageHistoryControl()
+		{
+			// This call is required by the Windows.Forms Form Designer.
+			InitializeComponent();
+
+			EnableDoubleBuffering();
+			Reset();
+		}
+
+		public void Reset()
+		{
+			lastValues1.Initialize();
+			lastValues2.Initialize();
+			nextValueIndex = 0;
+			lastValuesCount = 0;
+			Invalidate();
+		}
+
+		/// <summary> 
+		/// Clean up any resources being used.
+		/// </summary>
+		protected override void Dispose( bool disposing )
+		{
+			if( disposing )
+			{
+				if(components != null)
+				{
+					components.Dispose();
+				}
+			}
+			base.Dispose( disposing );
+		}
+
+		#region Component Designer generated code
+		/// <summary> 
+		/// Required method for Designer support - do not modify 
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			// 
+			// UsageHistoryControl
+			// 
+			this.BackColor = System.Drawing.Color.Black;
+			this.Name = "UsageHistoryControl";
+
+		}
+		#endregion
+
+		private void EnableDoubleBuffering()
+		{
+			// Set the value of the double-buffering style bits to true.
+			this.SetStyle(ControlStyles.DoubleBuffer | 
+				ControlStyles.UserPaint | 
+				ControlStyles.AllPaintingInWmPaint,
+				true);
+			this.UpdateStyles();
+		}
+
+		protected override void OnResize(EventArgs e)
+		{
+			// Invalidate the control to get a repaint.
+			this.Invalidate();
+		}
+
+		protected override void OnPaint(PaintEventArgs e)
+		{
+			Graphics g = e.Graphics;
+
+			for(int i = 0; i <= ClientRectangle.Width+squareWidth; i += squareWidth)
+			{
+				g.DrawLine(Pens.Green, i-shift, 0, i-shift, ClientRectangle.Height);
+			}
+
+			for(int i = 0; i < ClientRectangle.Height; i += squareWidth)
+			{
+				g.DrawLine(Pens.Green, 0, i, ClientRectangle.Width, i);
+			}
+
+			int startValueIndex = (nextValueIndex-1+maxLastValuesCount)%maxLastValuesCount;
+
+			int prevVal1 = GetRelativeValue(lastValues1[startValueIndex]);
+			int prevVal2 = GetRelativeValue(lastValues2[startValueIndex]);
+
+			for(int i = 1; i < lastValuesCount; ++i)
+			{
+				int index = nextValueIndex - 1 - i;
+				if (index < 0)
+				{
+					index += maxLastValuesCount;
+				}
+
+				int val1 = GetRelativeValue(lastValues1[index]);
+				int val2 = GetRelativeValue(lastValues2[index]);
+
+				g.DrawLine(
+					Pens.Red,
+					ClientRectangle.Width-(i-1)*shiftStep, ClientRectangle.Height-prevVal2,
+					ClientRectangle.Width-i*shiftStep, ClientRectangle.Height-val2);
+
+				g.DrawLine(
+					Pens.LawnGreen,
+					ClientRectangle.Width-(i-1)*shiftStep, ClientRectangle.Height-prevVal1,
+					ClientRectangle.Width-i*shiftStep, ClientRectangle.Height-val1);
+
+				prevVal1 = val1;
+				prevVal2 = val2;
+			}
+		}
+
+		private int GetRelativeValue(int val)
+		{
+			int result = val * (ClientRectangle.Height-2) / max + 1;
+			return result;
+		}
+
+		public void AddValues(int val1, int val2)
+		{
+			lastValues1[nextValueIndex] = val1;
+			lastValues2[nextValueIndex] = val2;
+			
+			nextValueIndex++;
+			nextValueIndex %= maxLastValuesCount;
+			lastValuesCount++;
+			if (lastValuesCount > maxLastValuesCount)
+			{
+				lastValuesCount = maxLastValuesCount;
+			}
+			
+			shift += shiftStep;
+			shift %= squareWidth;
+			Invalidate();
+		}
+
+		public int Maximum
+		{
+			get
+			{
+				return max;
+			}
+
+			set
+			{
+				// Make sure that the maximum value is never set lower than the minimum value.
+				if (value < min)
+				{
+					min = value;
+				}
+
+				max = value;
+
+				// Invalidate the control to get a repaint.
+				this.Invalidate();
+			}
+		}
+
+	}
+}

UsageControl/UsageHistoryControl.resx

@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 1.3
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">1.3</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1">this is my long string</data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        [base64 mime encoded serialized .NET Framework object]
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        [base64 mime encoded string representing a byte array form of the .NET Framework object]
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used forserialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>1.3</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="$this.TrayLargeIcon" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.Locked" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.SnapToGrid" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </data>
+  <data name="$this.DrawGrid" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </data>
+  <data name="$this.Name">
+    <value>UsageHistoryControl</value>
+  </data>
+  <data name="$this.TrayHeight" type="System.Int32, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>80</value>
+  </data>
+  <data name="$this.Language" type="System.Globalization.CultureInfo, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>(Default)</value>
+  </data>
+  <data name="$this.Localizable" type="System.Boolean, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>False</value>
+  </data>
+  <data name="$this.DefaultModifiers" type="System.CodeDom.MemberAttributes, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>Private</value>
+  </data>
+  <data name="$this.GridSize" type="System.Drawing.Size, System.Drawing, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>8, 8</value>
+  </data>
+</root>