init lserp cs 5.0

2026-07-10 15:25:05 +08:00
commit 90f3fda86a
3799 changed files with 976868 additions and 0 deletions
@@ -0,0 +1,120 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+
+namespace Zhaizj.Framework.Drawing {
+
+    /// <summary>
+    /// 验证码工具
+    /// </summary>
+    public class ValidationCode {
+
+        /// <summary>
+        /// 创建验证码，返回一个 Image 对象
+        /// </summary>
+        /// <param name="code"></param>
+        /// <param name="width"></param>
+        /// <param name="height"></param>
+        /// <param name="fontFamily"></param>
+        /// <returns></returns>
+        public Image CreateImage( String code, int width, int height, String fontFamily ) {
+
+            Bitmap bm = new Bitmap( width, height );
+
+            using (Graphics g = Graphics.FromImage( bm )) {
+
+                g.SmoothingMode = SmoothingMode.AntiAlias;
+
+                HatchBrush brush = new HatchBrush( HatchStyle.SmallConfetti, Color.LightGray, Color.White );
+                Rectangle rect = new Rectangle( 0, 0, width, height );
+                g.FillRectangle( brush, rect );
+
+                int fontsize = rect.Height + 1;
+                FontAndSize size = FontAndSize.GetValue( g, code, fontFamily, fontsize, bm.Width );
+
+                GraphicsPath gpath = getGraphicsPath( code, size.font, rect );
+
+                Color brushColor = ColorTranslator.FromHtml( "#000000" );
+                brush = new HatchBrush( HatchStyle.Divot, brushColor, Color.DarkGray );
+                g.FillPath( brush, gpath );
+
+                addRandomNoise( g, rect );
+
+            }
+            return bm;
+        }
+
+        private void addRandomNoise( Graphics g, Rectangle rect ) {
+
+            HatchBrush brush = new HatchBrush( HatchStyle.Weave, Color.LightGray, Color.White );
+
+            for (int i = 0; i < (int)(rect.Width * rect.Height / 30F); i++) {
+                int x = rd.Next( rect.Width );
+                int y = rd.Next( rect.Height );
+                g.FillEllipse( brush, x, y, 2, 3 );
+            }
+        }
+
+        private Rectangle addRandomLine( Graphics g, Rectangle rect ) {
+            int lineCount = rd.Next( 1, 8 );
+            for (int i = 0; i < lineCount; i++) {
+
+                Point pt1 = new Point();
+                pt1.X = rd.Next( rect.Width );
+                pt1.Y = rd.Next( rect.Height );
+
+                Point pt2 = new Point();
+                pt2.X = rd.Next( rect.Width );
+                pt2.Y = rd.Next( rect.Height );
+
+                float width = rd.Next( 2 );
+
+                Pen p = new Pen( Color.Aqua, width );
+                g.DrawLine( p, pt1, pt2 );
+            }
+            return rect;
+        }
+
+        private StringFormat getFormat() {
+            StringFormat format = new StringFormat();
+            format.Alignment = StringAlignment.Center;
+            format.LineAlignment = StringAlignment.Center;
+            return format;
+        }
+
+        private GraphicsPath getGraphicsPath( String code, Font font, Rectangle rect ) {
+
+            StringFormat format = getFormat();
+
+            GraphicsPath path = new GraphicsPath();
+            path.AddString( code, font.FontFamily, (int)font.Style, font.Size, rect, format );
+
+            PointF[] points = getRandomPoint( rect );
+
+            Matrix matrix = new Matrix();
+            matrix.Translate( 0F, 0F );
+
+            path.Warp( points, rect, matrix, WarpMode.Perspective, 0F );
+
+            return path;
+        }
+
+        private PointF[] getRandomPoint( Rectangle rect ) {
+            float v = 4F;
+            PointF[] points =
+			{
+				new PointF(rd.Next(rect.Width) / v, rd.Next(rect.Height) / v),
+				new PointF(rect.Width - rd.Next(rect.Width) / v, rd.Next(rect.Height) / v),
+				new PointF(rd.Next(rect.Width) / v, rect.Height - rd.Next(rect.Height) / v),
+				new PointF(rect.Width - rd.Next(rect.Width) / v, rect.Height - rd.Next(rect.Height) / v)
+			};
+            return points;
+        }
+
+        private Random rd = new Random();
+
+    }
+
+}