C# Example(revised)
Here we will build a class that will Enumerate the non inheritable class System.Drawing.Imaging.ColorMatrix.
using System; using System.Linq; using System.Collections; using System.Drawing.Imaging; using System.Collections.Generic; namespace Chico { public sealed class ColorMatrixEnumerator : IEnumerable, IEnumerable<float[]> { private ColorMatrix colorMatrix; public ColorMatrixEnumerator(ColorMatrix colorMatrix) { if (colorMatrix != null) { this.colorMatrix = colorMatrix; } } public int Count { get { if (this.colorMatrix != null) { return 5; } return 0; } } public IEnumerator GetEnumerator() { if (this.colorMatrix == null) { return null; } float[][] array = new float[this.Count][]; for (int i = 0; i < this.Count; i++) { array[i] = new float[this.Count]; for (int j = 0; j < this.Count; j++) { array[i][j] = this.colorMatrix[i, j]; } } return array.GetEnumerator(); } IEnumerator<float[]> IEnumerable<float[]>.GetEnumerator() { if (this.colorMatrix == null) { return null; } return this.OfType<float[]>().GetEnumerator(); } } }
Now we have an Enumerator for our matrix class that we can use in place of GetEnumerator. Now lets have a look at our inheritable matrix class.
using System; using System.Linq; using System.Drawing; using System.ComponentModel; using System.Drawing.Imaging; namespace Chico { [TypeConverter(typeof(ExpandableObjectConverter))] /// <summary> /// An Attempt to implement an inheritable <see cref="T:System.Drawing.Imaging.ColorMatrix" /> with <see cref="T:System.ComponentModel.DesignerSerializationVisibility" /> support. /// </summary> public class Matrix : ICloneable { protected float matrix00; protected float matrix01; protected float matrix02; protected float matrix03; protected float matrix04; protected float matrix10; protected float matrix11; protected float matrix12; protected float matrix13; protected float matrix14; protected float matrix20; protected float matrix21; protected float matrix22; protected float matrix23; protected float matrix24; protected float matrix30; protected float matrix31; protected float matrix32; protected float matrix33; protected float matrix34; protected float matrix40; protected float matrix41; protected float matrix42; private float matrix43; private float matrix44; [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the 0 (zero) row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the 0 row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix00 { get { return this.matrix00; } set { if (this is GrayScaleMatrix) { return; } this.matrix00 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the 0 (zero) row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the 0 row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" /> .</returns> public float Matrix01 { get { return this.matrix01; } set { if (this is GrayScaleMatrix) { return; } this.matrix01 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the 0 (zero) row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the 0 row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix02 { get { return this.matrix02; } set { if (this is GrayScaleMatrix) { return; } this.matrix02 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the 0 (zero) row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />. Represents the alpha component.</summary> /// <returns>The element at the 0 row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix03 { get { return this.matrix03; } set { if (this is GrayScaleMatrix) { return; } this.matrix03 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the 0 (zero) row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the 0 row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix04 { get { return this.matrix04; } set { if (this is GrayScaleMatrix) { return; } this.matrix04 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the first row and 0 (zero) column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the first row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix10 { get { return this.matrix10; } set { if (this is GrayScaleMatrix) { return; } this.matrix10 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the first row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the first row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix11 { get { return this.matrix11; } set { if (this is GrayScaleMatrix) { return; } this.matrix11 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the first row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the first row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix12 { get { return this.matrix12; } set { if (this is GrayScaleMatrix) { return; } this.matrix12 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the first row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />. Represents the alpha component.</summary> /// <returns>The element at the first row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix13 { get { return this.matrix13; } set { if (this is GrayScaleMatrix) { return; } this.matrix13 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the first row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the first row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix14 { get { return this.matrix14; } set { if (this is GrayScaleMatrix) { return; } this.matrix14 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the second row and 0 (zero) column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the second row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix20 { get { return this.matrix20; } set { if (this is GrayScaleMatrix) { return; } this.matrix20 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the second row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the second row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix21 { get { return this.matrix21; } set { if (this is GrayScaleMatrix) { return; } this.matrix21 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the second row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the second row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix22 { get { return this.matrix22; } set { if (this is GrayScaleMatrix) { return; } this.matrix22 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the second row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the second row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix23 { get { return this.matrix23; } set { if (this is GrayScaleMatrix) { return; } this.matrix23 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the second row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the second row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix24 { get { return this.matrix24; } set { if (this is GrayScaleMatrix) { return; } this.matrix24 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the third row and 0 (zero) column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the third row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix30 { get { return this.matrix30; } set { if (this is GrayScaleMatrix) { return; } this.matrix30 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the third row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the third row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix31 { get { return this.matrix31; } set { if (this is GrayScaleMatrix) { return; } this.matrix31 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the third row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the third row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix32 { get { return this.matrix32; } set { if (this is GrayScaleMatrix) { return; } this.matrix32 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the third row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />. Represents the alpha component.</summary> /// <returns>The element at the third row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix33 { get { return this.matrix33; } set { if (this is GrayScaleMatrix) { return; } this.matrix33 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the third row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the third row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix34 { get { return this.matrix34; } set { if (this is GrayScaleMatrix) { return; } this.matrix34 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the fourth row and 0 (zero) column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the fourth row and 0 column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix40 { get { return this.matrix40; } set { if (this is GrayScaleMatrix) { return; } this.matrix40 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the fourth row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the fourth row and first column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix41 { get { return this.matrix41; } set { if (this is GrayScaleMatrix) { return; } this.matrix41 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the fourth row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the fourth row and second column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix42 { get { return this.matrix42; } set { if (this is GrayScaleMatrix) { return; } this.matrix42 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the fourth row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />. Represents the alpha component.</summary> /// <returns>The element at the fourth row and third column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix43 { get { return this.matrix43; } set { if (this is GrayScaleMatrix) { return; } this.matrix43 = value; } } [DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] /// <summary>Gets or sets the element at the fourth row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</summary> /// <returns>The element at the fourth row and fourth column of this <see cref="T:System.Drawing.Imaging.ColorMatrix" />.</returns> public float Matrix44 { get { return this.matrix44; } set { if (this is GrayScaleMatrix) { return; } this.matrix44 = value; } } public Matrix() { this.matrix00 = 1f; this.matrix11 = 1f; this.matrix22 = 1f; this.matrix33 = 1f; this.matrix44 = 1f; } public Matrix SetMatrix(Matrix newMatrix) { if (this is GrayScaleMatrix) { return this; } this.SetMatrix(Matrix.Insure(newMatrix).GetMatrix()); return this; } public void ConvertToGrayscaleMatrix() { if (new GrayScaleMatrix().Equals(this)) { return; } this.SetMatrix(new GrayScaleMatrix()); } protected Matrix(float[][] newMatrix) { this.SetMatrix(newMatrix); } internal void SetMatrix(float[][] newMatrix) { try { this.matrix00 = newMatrix[0][0]; this.matrix01 = newMatrix[0][1]; this.matrix02 = newMatrix[0][2]; this.matrix03 = newMatrix[0][3]; this.matrix04 = newMatrix[0][4]; this.matrix10 = newMatrix[1][0]; this.matrix11 = newMatrix[1][1]; this.matrix12 = newMatrix[1][2]; this.matrix13 = newMatrix[1][3]; this.matrix14 = newMatrix[1][4]; this.matrix20 = newMatrix[2][0]; this.matrix21 = newMatrix[2][1]; this.matrix22 = newMatrix[2][2]; this.matrix23 = newMatrix[2][3]; this.matrix24 = newMatrix[2][4]; this.matrix30 = newMatrix[3][0]; this.matrix31 = newMatrix[3][1]; this.matrix32 = newMatrix[3][2]; this.matrix33 = newMatrix[3][3]; this.matrix34 = newMatrix[3][4]; this.matrix40 = newMatrix[4][0]; this.matrix41 = newMatrix[4][1]; this.matrix42 = newMatrix[4][2]; this.matrix43 = newMatrix[4][3]; this.matrix44 = newMatrix[4][4]; } catch { this.SetMatrix(default(Matrix)); } } internal float[][] GetMatrix() { float[][] array = new float[5][]; for (int i = 0; i < 5; i++) { array[i] = new float[5]; } array[0][0] = this.matrix00; array[0][1] = this.matrix01; array[0][2] = this.matrix02; array[0][3] = this.matrix03; array[0][4] = this.matrix04; array[1][0] = this.matrix10; array[1][1] = this.matrix11; array[1][2] = this.matrix12; array[1][3] = this.matrix13; array[1][4] = this.matrix14; array[2][0] = this.matrix20; array[2][1] = this.matrix21; array[2][2] = this.matrix22; array[2][3] = this.matrix23; array[2][4] = this.matrix24; array[3][0] = this.matrix30; array[3][1] = this.matrix31; array[3][2] = this.matrix32; array[3][3] = this.matrix33; array[3][4] = this.matrix34; array[4][0] = this.matrix40; array[4][1] = this.matrix41; array[4][2] = this.matrix42; array[4][3] = this.matrix43; array[4][4] = this.matrix44; return array; } public static Matrix Insure(Matrix matrix) { if (matrix == null) { matrix = new Matrix(); } return matrix; } public static Matrix CreateFromColorMatrix(ColorMatrix colorMatrix) { if (colorMatrix == null) { colorMatrix = new ColorMatrix(); } return Matrix.Insure(new Matrix(new ColorMatrixEnumerator(colorMatrix).ToArray())); } protected ImageAttributes Attributes { get { ImageAttributes attributes = new ImageAttributes(); attributes.SetColorMatrix(this); return attributes; } } public void DrawImageWithMatrix(Image image) { if (image == null) return; Graphics g = Graphics.FromImage(image); g.DrawImage(image, new Rectangle(0,0, image.Width, image.Height), 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, this.Attributes); g.Dispose(); } public static implicit operator ColorMatrix(Matrix matrix) { return (ColorMatrix)Matrix.Insure(matrix).Clone(); } public static implicit operator Matrix(ColorMatrix matrix) { return Matrix.Insure(Matrix.CreateFromColorMatrix(matrix)); } public ColorMatrixEnumerator MatrixEnumerator { get { return new ColorMatrixEnumerator(this); } } public object Clone() { return new ColorMatrix(this.GetMatrix()); } } }
now that we have our inheritable Matrix class built we will take it a step further and implement our grayscale matrix derived from matrix.
using System; using System.Drawing.Imaging; namespace Chico { public sealed class GrayScaleMatrix : Matrix { private const float grayscaleA = .3f; private const float grayscaleB = .59f; private const float grayscaleC = .11f; private const float Matrix1 = 1; private const float Matrix0 = 0; private static bool IsGrayscale(Matrix matrix) { if (matrix != null) { if (matrix is GrayScaleMatrix) { return true; } else { ColorMatrix matrix2 = matrix; bool isMatrix0 = matrix2[0, 0] == grayscaleA && matrix2[0, 1] == grayscaleA && matrix2[0, 2] == grayscaleA && matrix2[0,3] == Matrix0 && matrix2[0,4] == Matrix0; bool isMatrix1 = matrix2[1, 0] == grayscaleB && matrix2[1, 1] == grayscaleB && matrix2[1, 2] == grayscaleB && matrix2[1, 3] == Matrix0 && matrix2[1, 4] == Matrix0; bool isMatrix2 = matrix2[2, 0] == grayscaleC && matrix2[2, 1] == grayscaleC && matrix2[2, 2] == grayscaleC && matrix2[2, 3] == Matrix0 && matrix2[2, 4] == Matrix0; bool isMatrix3 = matrix2[3, 0] == Matrix0 && matrix2[3, 1] == Matrix0 && matrix2[3, 2] == Matrix0 && matrix2[3, 3] == Matrix1 && matrix2[3, 4] == Matrix0; bool isMatrix4 = matrix2[4, 0] == Matrix0 && matrix2[4, 1] == Matrix0 && matrix2[4, 2] == Matrix0 && matrix2[4, 3] == Matrix0 && matrix2[4, 4] == Matrix1; return isMatrix0 && isMatrix1 && isMatrix2 && isMatrix3 && isMatrix4; } } else { return false; } } public override int GetHashCode() { return base.GetHashCode(); } public override bool Equals(object obj) { return obj is Matrix && GrayScaleMatrix.IsGrayscale((Matrix)obj); } public GrayScaleMatrix() : base() { matrix00 = grayscaleA; matrix01 = grayscaleA; matrix02 = grayscaleA; matrix10 = grayscaleB; matrix11 = grayscaleB; matrix12 = grayscaleB; matrix20 = grayscaleC; matrix21 = grayscaleC; matrix22 = grayscaleC; } } }
VB Example(revised)
Imports System Imports System.Linq Imports System.Collections Imports System.Drawing.Imaging Imports System.Collections.Generic Namespace Chico Public NotInheritable Class ColorMatrixEnumerator Implements IEnumerable, IEnumerable(Of Single()) Private colorMatrix As ColorMatrix Public Sub New(ByVal colorMatrix As ColorMatrix) If colorMatrix IsNot Nothing Then Me.colorMatrix = colorMatrix End If End Sub Public ReadOnly Property Count() As Integer Get If Me.colorMatrix IsNot Nothing Then Return 5 End If Return 0 End Get End Property Public Function GetEnumerator() As IEnumerator Implements IEnumerable.GetEnumerator If Me.colorMatrix Is Nothing Then Return Nothing End If Dim array(Me.Count - 1)() As Single For i As Integer = 0 To Me.Count - 1 array(i) = New Single(Me.Count - 1){} For j As Integer = 0 To Me.Count - 1 array(i)(j) = Me.colorMatrix(i, j) Next j Next i Return array.GetEnumerator() End Function Private Function IEnumerable_GetEnumerator() As IEnumerator(Of Single()) Implements IEnumerable(Of Single()).GetEnumerator If Me.colorMatrix Is Nothing Then Return Nothing End If Return Me.OfType(Of Single())().GetEnumerator() End Function End Class End Namespace
Imports System Imports System.Linq Imports System.Drawing Imports System.ComponentModel Imports System.Drawing.Imaging Namespace Chico ''' <summary> ''' An Attempt to implement an inheritable <see cref="T:System.Drawing.Imaging.ColorMatrix" /> with <see cref="T:System.ComponentModel.DesignerSerializationVisibility" /> support. ''' </summary> <TypeConverter(GetType(ExpandableObjectConverter))> Public Class Matrix Implements ICloneable Protected m_matrix00, m_matrix01, m_matrix02, m_matrix03, m_matrix04, m_matrix10, m_matrix11, m_matrix12, m_matrix13, m_matrix14, m_matrix20, m_matrix21, m_matrix22, m_matrix23, m_matrix24, m_matrix30, m_matrix31, m_matrix32, m_matrix33, m_matrix34, m_matrix40, m_matrix41, m_matrix42, m_matrix43, m_matrix44 As Single <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix00() As Single Get Return Me.m_matrix00 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix00 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix01() As Single Get Return Me.m_matrix01 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix01 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix02() As Single Get Return Me.m_matrix02 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix02 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix03() As Single Get Return Me.m_matrix03 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix03 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix04() As Single Get Return Me.m_matrix04 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix04 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix10() As Single Get Return Me.m_matrix10 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix10 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix11() As Single Get Return Me.m_matrix11 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix11 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix12() As Single Get Return Me.m_matrix12 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix12 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix13() As Single Get Return Me.m_matrix13 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix13 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix14() As Single Get Return Me.m_matrix14 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix14 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix20() As Single Get Return Me.m_matrix20 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix20 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix21() As Single Get Return Me.m_matrix21 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix21 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix22() As Single Get Return Me.m_matrix22 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix22 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix23() As Single Get Return Me.m_matrix23 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix23 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix24() As Single Get Return Me.m_matrix24 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix24 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix30() As Single Get Return Me.m_matrix30 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix30 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix31() As Single Get Return Me.m_matrix31 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix31 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix32() As Single Get Return Me.m_matrix32 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix32 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix33() As Single Get Return Me.m_matrix33 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix33 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix34() As Single Get Return Me.m_matrix34 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix34 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix40() As Single Get Return Me.m_matrix40 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix40 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix41() As Single Get Return Me.m_matrix41 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix41 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix42() As Single Get Return Me.m_matrix42 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix42 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix43() As Single Get Return Me.m_matrix43 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix43 = value End Set End Property <DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> Public Property Matrix44() As Single Get Return Me.m_matrix44 End Get Set(ByVal value As Single) If TypeOf Me Is GrayScaleMatrix Then Return End If Me.m_matrix44 = value End Set End Property Public Sub New() Me.m_matrix00 = 1f Me.m_matrix11 = 1f Me.m_matrix22 = 1f Me.m_matrix33 = 1f Me.m_matrix44 = 1f End Sub Public Function SetMatrix(ByVal newMatrix As Matrix) As Matrix If TypeOf Me Is GrayScaleMatrix Then Return Me End If Me.SetMatrix(Matrix.Insure(newMatrix).GetMatrix()) Return Me End Function Public Sub ConvertToGrayscaleMatrix() If New GrayScaleMatrix().Equals(Me) Then Return End If Me.SetMatrix(New GrayScaleMatrix()) End Sub Protected Sub New(ByVal newMatrix()() As Single) Me.SetMatrix(newMatrix) End Sub Friend Sub SetMatrix(ByVal newMatrix()() As Single) Try Me.m_matrix00 = newMatrix(0)(0) Me.m_matrix01 = newMatrix(0)(1) Me.m_matrix02 = newMatrix(0)(2) Me.m_matrix03 = newMatrix(0)(3) Me.m_matrix04 = newMatrix(0)(4) Me.m_matrix10 = newMatrix(1)(0) Me.m_matrix11 = newMatrix(1)(1) Me.m_matrix12 = newMatrix(1)(2) Me.m_matrix13 = newMatrix(1)(3) Me.m_matrix14 = newMatrix(1)(4) Me.m_matrix20 = newMatrix(2)(0) Me.m_matrix21 = newMatrix(2)(1) Me.m_matrix22 = newMatrix(2)(2) Me.m_matrix23 = newMatrix(2)(3) Me.m_matrix24 = newMatrix(2)(4) Me.m_matrix30 = newMatrix(3)(0) Me.m_matrix31 = newMatrix(3)(1) Me.m_matrix32 = newMatrix(3)(2) Me.m_matrix33 = newMatrix(3)(3) Me.m_matrix34 = newMatrix(3)(4) Me.m_matrix40 = newMatrix(4)(0) Me.m_matrix41 = newMatrix(4)(1) Me.m_matrix42 = newMatrix(4)(2) Me.m_matrix43 = newMatrix(4)(3) Me.m_matrix44 = newMatrix(4)(4) Catch Me.SetMatrix(Nothing) End Try End Sub Friend Function GetMatrix() As Single()() Dim array(4)() As Single For i As Integer = 0 To 4 array(i) = New Single(4){} Next i array(0)(0) = Me.m_matrix00 array(0)(1) = Me.m_matrix01 array(0)(2) = Me.m_matrix02 array(0)(3) = Me.m_matrix03 array(0)(4) = Me.m_matrix04 array(1)(0) = Me.m_matrix10 array(1)(1) = Me.m_matrix11 array(1)(2) = Me.m_matrix12 array(1)(3) = Me.m_matrix13 array(1)(4) = Me.m_matrix14 array(2)(0) = Me.m_matrix20 array(2)(1) = Me.m_matrix21 array(2)(2) = Me.m_matrix22 array(2)(3) = Me.m_matrix23 array(2)(4) = Me.m_matrix24 array(3)(0) = Me.m_matrix30 array(3)(1) = Me.m_matrix31 array(3)(2) = Me.m_matrix32 array(3)(3) = Me.m_matrix33 array(3)(4) = Me.m_matrix34 array(4)(0) = Me.m_matrix40 array(4)(2) = Me.m_matrix42 array(4)(3) = Me.m_matrix42 array(4)(4) = Me.m_matrix44 Return array End Function Public Shared Function Insure(ByVal m_matrix As Matrix) As Matrix If m_matrix Is Nothing Then m_matrix = New Matrix() End If Return m_matrix End Function Public Shared Function CreateFromColorMatrix(ByVal colorMatrix As ColorMatrix) As Matrix If colorMatrix Is Nothing Then colorMatrix = New ColorMatrix() End If Return Matrix.Insure(New Matrix(New ColorMatrixEnumerator(colorMatrix).ToArray())) End Function Protected ReadOnly Property Attributes() As ImageAttributes Get Dim attributes As New ImageAttributes() attributes.SetColorMatrix(Me) Return attributes End Get End Property Public Sub DrawImageWithMatrix(ByVal image As Image) If image Is Nothing Then Return End If Dim g As Graphics = Graphics.FromImage(image) g.DrawImage(image, New Rectangle(0,0, image.Width, image.Height), 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, Me.Attributes) g.Dispose() End Sub Public Shared Widening Operator CType(ByVal m_matrix As Matrix) As ColorMatrix Return CType(Matrix.Insure(m_matrix).Clone(), ColorMatrix) End Operator Public Shared Widening Operator CType(ByVal m_matrix As ColorMatrix) As Matrix Return Matrix.Insure(Matrix.CreateFromColorMatrix(m_matrix)) End Operator Public ReadOnly Property MatrixEnumerator() As ColorMatrixEnumerator Get Return New ColorMatrixEnumerator(Me) End Get End Property Public Function Clone() As Object Implements ICloneable.Clone Return New ColorMatrix(Me.GetMatrix()) End Function End Class End Namespace
Imports System Imports System.Drawing.Imaging Namespace Chico Public NotInheritable Class GrayScaleMatrix Inherits Matrix Private Const grayscaleA As Single =.3f Private Const grayscaleB As Single =.59f Private Const grayscaleC As Single =.11f Private Const Matrix1 As Single = 1 Private Const Matrix0 As Single = 0 Private Shared Function IsGrayscale(ByVal matrix As Matrix) As Boolean If matrix IsNot Nothing Then If TypeOf matrix Is GrayScaleMatrix Then Return True Else Dim matrix2 As ColorMatrix = matrix Dim isMatrix0 As Boolean = matrix2(0, 0) = grayscaleA AndAlso matrix2(0, 1) = grayscaleA AndAlso matrix2(0, 2) = grayscaleA AndAlso matrix2(0,3) = Matrix0 AndAlso matrix2(0,4) = Matrix0 Dim isMatrix1 As Boolean = matrix2(1, 0) = grayscaleB AndAlso matrix2(1, 1) = grayscaleB AndAlso matrix2(1, 2) = grayscaleB AndAlso matrix2(1, 3) = Matrix0 AndAlso matrix2(1, 4) = Matrix0 Dim isMatrix2 As Boolean = matrix2(2, 0) = grayscaleC AndAlso matrix2(2, 1) = grayscaleC AndAlso matrix2(2, 2) = grayscaleC AndAlso matrix2(2, 3) = Matrix0 AndAlso matrix2(2, 4) = Matrix0 Dim isMatrix3 As Boolean = matrix2(3, 0) = Matrix0 AndAlso matrix2(3, 1) = Matrix0 AndAlso matrix2(3, 2) = Matrix0 AndAlso matrix2(3, 3) = Matrix1 AndAlso matrix2(3, 4) = Matrix0 Dim isMatrix4 As Boolean = matrix2(4, 0) = Matrix0 AndAlso matrix2(4, 1) = Matrix0 AndAlso matrix2(4, 2) = Matrix0 AndAlso matrix2(4, 3) = Matrix0 AndAlso matrix2(4, 4) = Matrix1 Return isMatrix0 AndAlso isMatrix1 AndAlso isMatrix2 AndAlso isMatrix3 AndAlso isMatrix4 End If Else Return False End If End Function Public Overrides Function GetHashCode() As Integer Return MyBase.GetHashCode() End Function Public Overrides Overloads Function Equals(ByVal obj As Object) As Boolean Return TypeOf obj Is Matrix AndAlso GrayScaleMatrix.IsGrayscale(CType(obj, Matrix)) End Function Public Sub New() MyBase.New() m_matrix00 = grayscaleA m_matrix01 = grayscaleA m_matrix02 = grayscaleA m_matrix10 = grayscaleB m_matrix11 = grayscaleB m_matrix12 = grayscaleB m_matrix20 = grayscaleC m_matrix21 = grayscaleC m_matrix22 = grayscaleC End Sub End Class End Namespace
