Commits

Mark Heath  committed 1b42ba8

initial version

  • Participants

Comments (0)

Files changed (20)

+syntax: glob
+bin/
+obj/
+*.suo

File WpfWaveform.sln

+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WpfWaveform", "WpfWaveform\WpfWaveform.csproj", "{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x86 = Debug|x86
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}.Debug|x86.ActiveCfg = Debug|x86
+		{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}.Debug|x86.Build.0 = Debug|x86
+		{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}.Release|x86.ActiveCfg = Release|x86
+		{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}.Release|x86.Build.0 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

File WpfWaveform/App.xaml

+<Application x:Class="WpfWaveform.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

File WpfWaveform/App.xaml.cs

+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Windows;
+
+namespace WpfWaveform
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}

File WpfWaveform/AutoSizeCanvas.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Controls;
+using System.Windows;
+
+namespace WpfWaveform
+{
+    class AutoSizeCanvas : Canvas
+    {
+        protected override Size MeasureOverride(Size availableSize)
+        {
+            double width = 0.0;
+            double height = 0.0;
+
+            foreach (var child in Children.OfType<FrameworkElement>())
+            {
+                child.Measure(availableSize);
+                double x = x = GetLeft(child) + child.DesiredSize.Width; 
+                if (!double.IsInfinity(x) && !double.IsNaN(x))
+                {
+                    width = Math.Max(width, x);
+                }
+                double y = GetTop(child) + child.DesiredSize.Height;
+                if (!double.IsInfinity(y) && !double.IsNaN(y))
+                {
+                    height = Math.Max(height, y);
+                }
+            }
+
+            return new Size(width, height);
+        }
+    }
+}

File WpfWaveform/BezierSpline.cs

+// <copyright file="BezierSpline.cs" company="Oleg V. Polikarpotchkin">
+// Copyright © 2008-2009 Oleg V. Polikarpotchkin. All Right Reserved
+// </copyright>
+// <author>Oleg V. Polikarpotchkin</author>
+// <email>ov-p@yandex.ru</email>
+// <date>2008-12-17</date>
+// <summary>
+// Methods to calculate Bezier Spline points.
+// Modified: Peter Lee (peterlee.com.cn < at > gmail.com)
+//   Update: 2009-03-16
+//</summary>
+
+using System;
+using System.Windows;
+
+namespace WpfWaveform
+{
+    /// <summary>
+    /// Bezier Spline methods
+    /// </summary>
+    /// <remarks>
+    /// Modified: Peter Lee (peterlee.com.cn < at > gmail.com)
+    ///   Update: 2009-03-16
+    /// 
+    /// see also:
+    /// Draw a smooth curve through a set of 2D points with Bezier primitives
+    /// http://www.codeproject.com/KB/graphics/BezierSpline.aspx
+    /// By Oleg V. Polikarpotchkin
+    /// 
+    /// Algorithm Descripition:
+    /// 
+    /// To make a sequence of individual Bezier curves to be a spline, we
+    /// should calculate Bezier control points so that the spline curve
+    /// has two continuous derivatives at knot points.
+    /// 
+    /// Note: `[]` denotes subscript
+    ///        `^` denotes supscript
+    ///        `'` denotes first derivative
+    ///       `''` denotes second derivative
+    ///       
+    /// A Bezier curve on a single interval can be expressed as:
+    /// 
+    /// B(t) = (1-t)^3 P0 + 3(1-t)^2 t P1 + 3(1-t)t^2 P2 + t^3 P3          (*)
+    /// 
+    /// where t is in [0,1], and
+    ///     1. P0 - first knot point
+    ///     2. P1 - first control point (close to P0)
+    ///     3. P2 - second control point (close to P3)
+    ///     4. P3 - second knot point
+    ///     
+    /// The first derivative of (*) is:
+    /// 
+    /// B'(t) = -3(1-t)^2 P0 + 3(3t^2–4t+1) P1 + 3(2–3t)t P2 + 3t^2 P3
+    /// 
+    /// The second derivative of (*) is:
+    /// 
+    /// B''(t) = 6(1-t) P0 + 6(3t-2) P1 + 6(1–3t) P2 + 6t P3
+    /// 
+    /// Considering a set of piecewise Bezier curves with n+1 points
+    /// (Q[0..n]) and n subintervals, the (i-1)-th curve should connect
+    /// to the i-th one:
+    /// 
+    /// Q[0] = P0[1],
+    /// Q[1] = P0[2] = P3[1], ... , Q[i-1] = P0[i] = P3[i-1]  (i = 1..n)   (@)
+    /// 
+    /// At the i-th subinterval, the Bezier curve is:
+    /// 
+    /// B[i](t) = (1-t)^3 P0[i] + 3(1-t)^2 t P1[i] + 
+    ///           3(1-t)t^2 P2[i] + t^3 P3[i]                 (i = 1..n)
+    /// 
+    /// applying (@):
+    /// 
+    /// B[i](t) = (1-t)^3 Q[i-1] + 3(1-t)^2 t P1[i] + 
+    ///           3(1-t)t^2 P2[i] + t^3 Q[i]                  (i = 1..n)   (i)
+    ///           
+    /// From (i), the first derivative at the i-th subinterval is:
+    /// 
+    /// B'[i](t) = -3(1-t)^2 Q[i-1] + 3(3t^2–4t+1) P1[i] +
+    ///            3(2–3t)t P2[i] + 3t^2 Q[i]                 (i = 1..n)
+    /// 
+    /// Using the first derivative continuity condition:
+    /// 
+    /// B'[i-1](1) = B'[i](0)
+    /// 
+    /// we get:
+    /// 
+    /// P1[i] + P2[i-1] = 2Q[i-1]                             (i = 2..n)   (1)
+    /// 
+    /// From (i), the second derivative at the i-th subinterval is:
+    /// 
+    /// B''[i](t) = 6(1-t) Q[i-1] + 6(3t-2) P1[i] +
+    ///             6(1-3t) P2[i] + 6t Q[i]                   (i = 1..n)
+    /// 
+    /// Using the second derivative continuity condition:
+    /// 
+    /// B''[i-1](1) = B''[i](0)
+    /// 
+    /// we get:
+    /// 
+    /// P1[i-1] + 2P1[i] = P2[i] + 2P2[i-1]                   (i = 2..n)   (2)
+    /// 
+    /// Then, using the so-called "natural conditions":
+    /// 
+    /// B''[1](0) = 0
+    /// 
+    /// B''[n](1) = 0
+    /// 
+    /// to the second derivative equations, and we get:
+    /// 
+    /// 2P1[1] - P2[1] = Q[0]                                              (3)
+    /// 
+    /// 2P2[n] - P1[n] = Q[n]                                              (4)
+    /// 
+    /// From (1)(2)(3)(4), we have 2n conditions for n first control points
+    /// P1[1..n], and n second control points P2[1..n].
+    /// 
+    /// Eliminating P2[1..n], we get (be patient to get :-) a set of n
+    /// equations for solving P1[1..n]:
+    /// 
+    ///   2P1[1]   +  P1[2]   +            = Q[0] + 2Q[1]
+    ///    P1[1]   + 4P1[2]   +    P1[3]   = 4Q[1] + 2Q[2]
+    ///  ...
+    ///    P1[i-1] + 4P1[i]   +    P1[i+1] = 4Q[i-1] + 2Q[i]
+    ///  ...
+    ///    P1[n-2] + 4P1[n-1] +    P1[n]   = 4Q[n-2] + 2Q[n-1]
+    ///               P1[n-1] + 3.5P1[n]   = (8Q[n-1] + Q[n]) / 2
+    ///  
+    /// From this set of equations, P1[1..n] are easy but tedious to solve.
+    /// </remarks>
+    public static class BezierSpline
+    {
+        /// <summary>
+        /// Get open-ended Bezier Spline Control Points.
+        /// </summary>
+        /// <param name="knots">Input Knot Bezier spline points.</param>
+        /// <param name="firstControlPoints">Output First Control points array of knots.Length - 1 length.</param>
+        /// <param name="secondControlPoints">Output Second Control points array of knots.Length - 1 length.</param>
+        /// <exception cref="ArgumentNullException"><paramref name="knots"/> parameter must be not null.</exception>
+        /// <exception cref="ArgumentException"><paramref name="knots"/> array must containg at least two points.</exception>
+        public static void GetCurveControlPoints(Point[] knots, out Point[] firstControlPoints, out Point[] secondControlPoints)
+        {
+            if (knots == null)
+                throw new ArgumentNullException("knots");
+            int n = knots.Length - 1;
+            if (n < 1)
+                throw new ArgumentException("At least two knot points required", "knots");
+            if (n == 1)
+            { // Special case: Bezier curve should be a straight line.
+                firstControlPoints = new Point[1];
+                // 3P1 = 2P0 + P3
+                firstControlPoints[0].X = (2 * knots[0].X + knots[1].X) / 3;
+                firstControlPoints[0].Y = (2 * knots[0].Y + knots[1].Y) / 3;
+
+                secondControlPoints = new Point[1];
+                // P2 = 2P1 – P0
+                secondControlPoints[0].X = 2 * firstControlPoints[0].X - knots[0].X;
+                secondControlPoints[0].Y = 2 * firstControlPoints[0].Y - knots[0].Y;
+                return;
+            }
+
+            // Calculate first Bezier control points
+            // Right hand side vector
+            double[] rhs = new double[n];
+
+            // Set right hand side X values
+            for (int i = 1; i < n - 1; ++i)
+                rhs[i] = 4 * knots[i].X + 2 * knots[i + 1].X;
+            rhs[0] = knots[0].X + 2 * knots[1].X;
+            rhs[n - 1] = (8 * knots[n - 1].X + knots[n].X) / 2.0;
+            // Get first control points X-values
+            double[] x = GetFirstControlPoints(rhs);
+
+            // Set right hand side Y values
+            for (int i = 1; i < n - 1; ++i)
+                rhs[i] = 4 * knots[i].Y + 2 * knots[i + 1].Y;
+            rhs[0] = knots[0].Y + 2 * knots[1].Y;
+            rhs[n - 1] = (8 * knots[n - 1].Y + knots[n].Y) / 2.0;
+            // Get first control points Y-values
+            double[] y = GetFirstControlPoints(rhs);
+
+            // Fill output arrays.
+            firstControlPoints = new Point[n];
+            secondControlPoints = new Point[n];
+            for (int i = 0; i < n; ++i)
+            {
+                // First control point
+                firstControlPoints[i] = new Point(x[i], y[i]);
+                // Second control point
+                if (i < n - 1)
+                    secondControlPoints[i] = new Point(2 * knots[i + 1].X - x[i + 1], 2 * knots[i + 1].Y - y[i + 1]);
+                else
+                    secondControlPoints[i] = new Point((knots[n].X + x[n - 1]) / 2, (knots[n].Y + y[n - 1]) / 2);
+            }
+        }
+
+        /// <summary>
+        /// Solves a tridiagonal system for one of coordinates (x or y) of first Bezier control points.
+        /// </summary>
+        /// <param name="rhs">Right hand side vector.</param>
+        /// <returns>Solution vector.</returns>
+        private static double[] GetFirstControlPoints(double[] rhs)
+        {
+            int n = rhs.Length;
+            double[] x = new double[n]; // Solution vector.
+            double[] tmp = new double[n]; // Temp workspace.
+
+            double b = 2.0;
+            x[0] = rhs[0] / b;
+            for (int i = 1; i < n; i++) // Decomposition and forward substitution.
+            {
+                tmp[i] = 1 / b;
+                b = (i < n - 1 ? 4.0 : 3.5) - tmp[i];
+                x[i] = (rhs[i] - x[i - 1]) / b;
+            }
+            for (int i = 1; i < n; i++)
+                x[n - i - 1] -= tmp[n - i] * x[n - i]; // Backsubstitution.
+
+            return x;
+        }
+    }
+}

File WpfWaveform/MainWindow.xaml

+<Window x:Class="WpfWaveform.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:local="clr-namespace:WpfWaveform"
+        Title="MainWindow" Height="350" Width="525">
+    <Grid>
+        <Border BorderBrush="LightBlue" BorderThickness="5" Margin="0,5,0,0">
+            <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
+                <local:AutoSizeCanvas x:Name="canvas" Background="Transparent"/>
+            </ScrollViewer>
+        </Border>
+    </Grid>
+</Window>

File WpfWaveform/MainWindow.xaml.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using NAudio.Wave;
+
+namespace WpfWaveform
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
+        }
+
+        void MainWindow_Loaded(object sender, RoutedEventArgs e)
+        {
+            using (var reader = new Mp3FileReader(@"E:\Audio\Music\Coldplay\X&Y\04-Fix You.mp3"))
+            {
+                int stepSize = reader.WaveFormat.AverageBytesPerSecond / 5;
+                byte[] byteBuffer = new byte[stepSize];
+                WaveBuffer buffer = new WaveBuffer(byteBuffer);
+                int read;
+                List<Point> points = new List<Point>();
+                int x = 0;
+                while ((read = reader.Read(byteBuffer, 0, stepSize)) > 0)
+                {
+                    int samples = read / 2; // assume 16 bit
+                    double maxLeft = 0;
+                    for (int sample = 0; sample < samples; sample+=2)
+                    {
+                        double sampleLeft = buffer.ShortBuffer[sample] / 32768.0;
+                        double sampleRight = buffer.ShortBuffer[sample+1] / 32768.0;
+                        maxLeft = Math.Max(maxLeft, sampleLeft);
+                    }
+                    points.Add(new Point(x, maxLeft * 400));
+                    x += 2;
+                }
+
+                // Get Bezier Spline Control Points.
+                Point[] cp1, cp2;
+                BezierSpline.GetCurveControlPoints(points.ToArray(), out cp1, out cp2);
+
+                // Draw curve by Bezier.
+                PathSegmentCollection lines = new PathSegmentCollection();
+                for (int i = 0; i < cp1.Length; ++i)
+                {
+                    lines.Add(new BezierSegment(cp1[i], cp2[i], points[i + 1], true));
+                }
+                PathFigure f = new PathFigure(points[0], lines, false);
+                PathGeometry g = new PathGeometry(new PathFigure[] { f });
+                Path path = new Path() { Stroke = Brushes.Red, StrokeThickness = 1, Data = g, Fill=Brushes.Beige };
+                canvas.Children.Add(path);
+            }
+        }
+
+        /*
+         * canvas.Children.Clear();
+
+            Point[] points = curve();
+            if (points.Length < 2)
+                return;
+
+            // Get Bezier Spline Control Points.
+            Point[] cp1, cp2;
+            ovp.BezierSpline.GetCurveControlPoints(points, out cp1, out cp2);
+
+            // Draw curve by Bezier.
+            PathSegmentCollection lines = new PathSegmentCollection();
+            for (int i = 0; i < cp1.Length; ++i)
+            {
+                lines.Add(new BezierSegment(cp1[i], cp2[i], points[i + 1], true));
+            }
+            PathFigure f = new PathFigure(points[0], lines, false);
+            PathGeometry g = new PathGeometry(new PathFigure[] { f });
+            Path path = new Path() { Stroke = Brushes.Red, StrokeThickness = 1, Data = g, Fill=Brushes.Beige };
+            canvas.Children.Add(path);
+         */
+    }
+}

File WpfWaveform/Properties/AssemblyInfo.cs

+using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+// 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("WpfWaveform")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("NICE")]
+[assembly: AssemblyProduct("WpfWaveform")]
+[assembly: AssemblyCopyright("Copyright © NICE 2012")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+//In order to begin building localizable applications, set 
+//<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
+//inside a <PropertyGroup>.  For example, if you are using US english
+//in your source files, set the <UICulture> to en-US.  Then uncomment
+//the NeutralResourceLanguage attribute below.  Update the "en-US" in
+//the line below to match the UICulture setting in the project file.
+
+//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
+
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+    //(used if a resource is not found in the page, 
+    // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+    //(used if a resource is not found in the page, 
+    // app, or any theme specific resource dictionaries)
+)]
+
+
+// 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 Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

File WpfWaveform/Properties/Resources.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.239
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WpfWaveform.Properties
+{
+
+
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("WpfWaveform.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}

File WpfWaveform/Properties/Resources.resx

+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    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">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </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 for serialized 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="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <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>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

File WpfWaveform/Properties/Settings.Designer.cs

+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.239
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace WpfWaveform.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

File WpfWaveform/Properties/Settings.settings

+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

File WpfWaveform/WpfWaveform.csproj

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{92AAF555-34DE-492B-AB7C-7A06C35DFE1F}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>WpfWaveform</RootNamespace>
+    <AssemblyName>WpfWaveform</AssemblyName>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="NAudio">
+      <HintPath>..\packages\NAudio.1.5\lib\NAudio.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="WindowsBase" />
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
+  </ItemGroup>
+  <ItemGroup>
+    <ApplicationDefinition Include="App.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </ApplicationDefinition>
+    <Page Include="MainWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="AutoSizeCanvas.cs" />
+    <Compile Include="BezierSpline.cs" />
+    <Compile Include="MainWindow.xaml.cs">
+      <DependentUpon>MainWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Properties\AssemblyInfo.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+    <None Include="packages.config" />
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <AppDesigner Include="Properties\" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

File WpfWaveform/packages.config

+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="NAudio" version="1.5" />
+</packages>