using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Gma.QrCodeNet.Encoding;
using Gma.QrCodeNet.Encoding.Windows.Render;
using System.Windows;
using System.Windows.Controls;namespace QRCodeFactory
{static class PathRender{/// <summary>/// 以矩形来填充矩阵点/// </summary>/// <param name="QrMatrix">算出来的矩阵</param>/// <param name="xScale">isRandom？随机取值的最小值：每个点的宽度</param>/// <param name="yScale">isRandom？随机取值的最大值：每个点的高度</param>/// <param name="isRandom">是否随机大小</param>/// <returns>返回路径填充材质</returns>public static StreamGeometry DrawRectGeometry(BitMatrix QrMatrix, double xScale, double yScale, bool isRandom){int width = QrMatrix == null ? 21 : QrMatrix.Width;StreamGeometry qrCodeStream = new StreamGeometry();qrCodeStream.FillRule = FillRule.EvenOdd;if (QrMatrix == null)return qrCodeStream;using (StreamGeometryContext qrCodeCtx = qrCodeStream.Open()){for (int y = 0; y < width; y++){for (int x = 0; x < width; x++){if (QrMatrix[x, y]){if (isRandom)qrCodeCtx.DrawRectGeometry(x, y, (double)(new Random(x + y + Environment.TickCount).Next((int)(xScale * 100), (int)(yScale * 100))) / 100, (double)(new Random(x + y + Environment.TickCount).Next((int)(xScale * 100), (int)(yScale * 100))) / 100);elseqrCodeCtx.DrawRectGeometry(x, y, xScale, yScale);}}}}qrCodeStream.Freeze();return qrCodeStream;}/// <summary>/// 以圆点来填充矩阵点/// </summary>/// <param name="QrMatrix">算出来的矩阵</param>/// <param name="xScale">isRandom？随机取值的最小值：每个点的宽度</param>/// <param name="yScale">isRandom？随机取值的最大值：每个点的高度</param>/// <param name="isRandom">是否随机大小</param>/// <returns>返回路径填充材质</returns>public static StreamGeometry DrawEllipseGeometry(BitMatrix QrMatrix, double xScale, double yScale, bool isRandom){int width = QrMatrix == null ? 21 : QrMatrix.Width;StreamGeometry qrCodeStream = new StreamGeometry();qrCodeStream.FillRule = FillRule.EvenOdd;if (QrMatrix == null)return qrCodeStream;using (StreamGeometryContext qrCodeCtx = qrCodeStream.Open()){for (int y = 0; y < width; y++){for (int x = 0; x < width; x++){if (QrMatrix[x, y]){if (isRandom)qrCodeCtx.DrawEllipseGeometry(x, y, (double)(new Random(x + y + Environment.TickCount).Next((int)(xScale * 100), (int)(yScale * 100))) / 100, (double)(new Random(x + y + Environment.TickCount).Next((int)(xScale * 100), (int)(yScale * 100))) / 100);elseqrCodeCtx.DrawEllipseGeometry(x, y, xScale, yScale);}}}}qrCodeStream.Freeze();return qrCodeStream;}/// <summary>/// 以自定义图形来填充矩阵点/// </summary>/// <param name="QrMatrix">算出来的矩阵</param>/// <param name="xScale">isRandom？随机取值的最小值：每个点的宽度</param>/// <param name="yScale">isRandom？随机取值的最大值：每个点的高度</param>/// <param name="isRandomSize">是否随机大小</param>/// <returns>返回路径填充材质</returns>public static void DrawCustomGeometry(BitMatrix QrMatrix, ref Grid drawGrid, Path pathGeo, double xScale, double yScale, bool isRandomSize,bool isRandomColor){int width = QrMatrix == null ? 21 : QrMatrix.Width;drawGrid.Width = drawGrid.Height = width * pathGeo.Width;for (int y = 0; y < width; y++){for (int x = 0; x < width; x++){if (QrMatrix[x, y]){Path newPath = new Path();//创建一个路径，代表一点newPath.StrokeThickness = 0;newPath.Stretch = Stretch.UniformToFill;//填充方式snewPath.HorizontalAlignment = HorizontalAlignment.Left;newPath.VerticalAlignment = VerticalAlignment.Top;newPath.Data = pathGeo.Data;newPath.RenderTransformOrigin = new Point(0.5, 0.5);TranslateTransform newTTF = new TranslateTransform(x * pathGeo.Width, y * pathGeo.Height);newPath.RenderTransform = newTTF;if (isRandomSize)//如果随机大小
                        {newPath.Width = newPath.Height = pathGeo.Width * (double)(new Random(x + y + Environment.TickCount).Next((int)(xScale * 100), (int)(yScale * 100))) / 100;}else{newPath.Width = pathGeo.Width * xScale;newPath.Height = pathGeo.Height * yScale;}if (isRandomColor)//如果随机颜色newPath.Fill = new SolidColorBrush(GetRandomColor());elsenewPath.Fill = Brushes.Black;drawGrid.Children.Add(newPath);}}}}internal static void DrawRectGeometry(this StreamGeometryContext ctx, double X, double Y, double Width, double Height){ctx.BeginFigure(new Point(X, Y),true, true);ctx.LineTo(new Point(X, Y + Height), true, true);ctx.LineTo(new Point(X + Width, Y + Height), true, true);ctx.LineTo(new Point(X + Width, Y), true, true);}internal static void DrawEllipseGeometry(this StreamGeometryContext ctx, double X, double Y, double Width, double Height){X = X * 2;Y = Y * 2;Height = Height * 2;Width = Width * 2;ctx.BeginFigure(new Point(X, Y + Height / 2), true, true);ctx.ArcTo(new Point(X + Width, Y + Height / 2), new Size(Width / 2, Height / 2), 90, false, SweepDirection.Clockwise, true, true);ctx.ArcTo(new Point(X, Y + Height / 2), new Size(Width / 2, Height / 2), 90, false, SweepDirection.Clockwise, true, true);}public static Color GetRandomColor(){Random randomNum_1 = new Random(Guid.NewGuid().GetHashCode());System.Threading.Thread.Sleep(randomNum_1.Next(1));int int_Red = randomNum_1.Next(255);Random randomNum_2 = new Random((int)DateTime.Now.Ticks);int int_Green = randomNum_2.Next(255);Random randomNum_3 = new Random(Guid.NewGuid().GetHashCode());int int_Blue = randomNum_3.Next(255);int_Blue = (int_Red + int_Green > 380) ? int_Red + int_Green - 380 : int_Blue;int_Blue = (int_Blue > 255) ? 255 : int_Blue;return GetDarkerColor(Color.FromArgb(Convert.ToByte(255),Convert.ToByte(int_Red), Convert.ToByte(int_Green), Convert.ToByte(int_Blue)));}//获取加深颜色public static Color GetDarkerColor(Color color){const int max = 255;int increase = new Random(Guid.NewGuid().GetHashCode()).Next(30, 255); //还可以根据需要调整此处的值int r = Math.Abs(Math.Min(color.R - increase, max));int g = Math.Abs(Math.Min(color.G - increase, max));int b = Math.Abs(Math.Min(color.B - increase, max));return Color.FromArgb(Convert.ToByte(255), Convert.ToByte(r), Convert.ToByte(g), Convert.ToByte(b));}}
}