/// <summary>获取验证码图片信息</summary>
/// <returns>验证码图片信息</returns>
public VerifyCodeImageInfo GetVerifyCodeImageInfo()
{
var vcii = new VerifyCodeImageInfo();
vcii.Text = this.GetVerifyCode(5);
vcii.ImageWidth = WebGet.GetInt("w", 200);
vcii.ImageHeight = WebGet.GetInt("h", 80);
var tc = WebGet.GetString("tc");
if (tc.IsNullOrEmpty_())
{
vcii.TextColor = Color.Empty;
vcii.RandomTextColor = true;
}
else
{
vcii.TextColor = ColorTranslator.FromHtml(tc);
vcii.RandomTextColor = WebGet.GetString("r").ToBool_();
}
var bc = WebGet.GetString("bc");
vcii.BackgroundColor = bc.IsNullOrEmpty_() ? Color.White : ColorTranslator.FromHtml(bc);
vcii.ImageFormat = ImageFormat.Png;
this.CreateVerifyCodeImage(vcii);
return(vcii);
}
/// <summary>创建验证码图片</summary>
/// <param name="verifyCodeImageInfo">验证码图片信息</param>
public void CreateVerifyCodeImage(VerifyCodeImageInfo verifyCodeImageInfo)
{
int textLength = verifyCodeImageInfo.Text.Length;
if (textLength == 0 || verifyCodeImageInfo.ImageWidth == 0 || verifyCodeImageInfo.ImageHeight == 0)
{
return;
}
using (var img = new Bitmap(verifyCodeImageInfo.ImageWidth, verifyCodeImageInfo.ImageHeight, PixelFormat.Format32bppArgb))
{
using (var g = Graphics.FromImage(img))
{
g.SmoothingMode = SmoothingMode.AntiAlias;
g.Clear(verifyCodeImageInfo.BackgroundColor);
int charSize = (int)(Math.Min(verifyCodeImageInfo.ImageHeight, (int)(verifyCodeImageInfo.ImageWidth / textLength)) * 0.8);
PointF charPoint = new PointF();
int halfCharSize = (int)(charSize * 0.5f);
int paddingHeight = (int)(verifyCodeImageInfo.ImageHeight * 0.6) - charSize;
using (var matrix = new Matrix())
{
using (var pen = new Pen(Color.Empty))
{
pen.Width = 1f;
using (var b = new SolidBrush(verifyCodeImageInfo.TextColor))
{
using (var format = new StringFormat())
{
format.Alignment = StringAlignment.Near;
format.LineAlignment = StringAlignment.Near;
Font f;
for (int i = 0; i < textLength; i++)
{
// 位置
charPoint.X += i == 0 ? charSize * 0.2f : charSize * 1.1f; // (float)(i * charSize);
charPoint.Y = (float)Utils.Rand(4, paddingHeight);
// 旋转
matrix.Reset();
matrix.RotateAt((float)Utils.Rand(-20, 20),
new PointF(charPoint.X + halfCharSize, charPoint.Y + halfCharSize));
//matrix.Translate(charPoint.X, charPoint.Y);
g.Transform = matrix;
b.Color = pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
// 字符大小
float fs = charSize * Utils.Rand(80, 120) * 0.01f;
f = new Font(GetFontFamily(verifyCodeImageInfo.Fonts), fs);
g.DrawString(verifyCodeImageInfo.Text[i].ToString(), f, b, charPoint, format);
f.Dispose();
g.ResetTransform();
// 使用字符相同颜色随机绘制曲线
//pen.Width = Utils.Rand(1, 2);
g.DrawBezier(pen,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight));
}
// 绘制随机纵向曲线
pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
//pen.Width = Utils.Rand(1, 2);
g.DrawBezier(pen,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
0,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
verifyCodeImageInfo.ImageHeight);
// 绘制随机横向曲线
//pen.Width = Utils.Rand(1, 2);
pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
g.DrawBezier(pen,
0,
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
verifyCodeImageInfo.ImageWidth,
Utils.Rand(verifyCodeImageInfo.ImageHeight));
}
}
}
}
}
verifyCodeImageInfo.ImageData = img.Clone() as Image;
}
}
/// <summary>创建验证码图片</summary>
/// <param name="verifyCodeImageInfo">验证码图片信息</param>
public void CreateVerifyCodeImage(VerifyCodeImageInfo verifyCodeImageInfo)
{
int textLength = verifyCodeImageInfo.Text.Length;
if (textLength == 0 || verifyCodeImageInfo.ImageWidth == 0 || verifyCodeImageInfo.ImageHeight == 0)
{
return;
}
using (Bitmap img = new Bitmap(verifyCodeImageInfo.ImageWidth, verifyCodeImageInfo.ImageHeight, PixelFormat.Format32bppArgb))
{
using (GraphicsPath p = new GraphicsPath())
{
using (Graphics g = Graphics.FromImage(img))
{
g.SmoothingMode = SmoothingMode.AntiAlias;
g.Clear(verifyCodeImageInfo.BackgroundColor);
int charSize = (int)(Math.Min(verifyCodeImageInfo.ImageHeight, (int)(verifyCodeImageInfo.ImageWidth / textLength)) * 0.8);
PointF charPoint = new PointF();
int halfCharSize = (int)(charSize * 0.5f);
int paddingHeight = (int)(verifyCodeImageInfo.ImageHeight * 0.8) - charSize;
using (Matrix matrix = new Matrix())
{
using (Pen pen = new Pen(Color.Empty))
{
using (StringFormat format = new StringFormat())
{
format.Alignment = StringAlignment.Near;
format.LineAlignment = StringAlignment.Near;
FontFamily f;
for (int i = 0; i < textLength; i++)
{
charPoint.X = (float)(i * charSize + Utils.Rand((int)(charSize * 0.2f), (int)(charSize * 0.8f)));
charPoint.Y = (float)Utils.Rand(2, paddingHeight);
p.Reset();
float fs = charSize * Utils.Rand(80, 120) * 0.01f;
f = GetFontFamily(verifyCodeImageInfo.Fonts);
p.AddString(verifyCodeImageInfo.Text[i].ToString(), f, 0, fs, new Point(0, 0), format);
matrix.Reset();
matrix.RotateAt((float)Utils.Rand(-60, 60), new PointF(charPoint.X + halfCharSize, charPoint.Y + halfCharSize));
matrix.Translate(charPoint.X, charPoint.Y);
p.Transform(matrix);
pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
pen.Width = Utils.Rand(1, 2);
g.DrawPath(pen, p);
g.DrawBezier(pen,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight));
}
}
pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
pen.Width = Utils.Rand(1, 2);
g.DrawBezier(pen,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
0,
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
verifyCodeImageInfo.ImageHeight);
pen.Width = Utils.Rand(1, 2);
pen.Color = GetTextColor(verifyCodeImageInfo.RandomTextColor, verifyCodeImageInfo.TextColor);
g.DrawBezier(pen,
0,
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
Utils.Rand(verifyCodeImageInfo.ImageWidth),
Utils.Rand(verifyCodeImageInfo.ImageHeight),
verifyCodeImageInfo.ImageWidth,
Utils.Rand(verifyCodeImageInfo.ImageHeight));
}
}
}
}
verifyCodeImageInfo.ImageData = img.Clone() as Image;
}
}